GB2269663A - Cooker hood with fuel gas leakage detection - Google Patents

Cooker hood with fuel gas leakage detection Download PDF

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Publication number
GB2269663A
GB2269663A GB9302407A GB9302407A GB2269663A GB 2269663 A GB2269663 A GB 2269663A GB 9302407 A GB9302407 A GB 9302407A GB 9302407 A GB9302407 A GB 9302407A GB 2269663 A GB2269663 A GB 2269663A
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GB
United Kingdom
Prior art keywords
fuel gas
alarm
integrated circuit
ventilator
gas leakage
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.)
Granted
Application number
GB9302407A
Other versions
GB2269663B (en
GB9302407D0 (en
Inventor
Chuen-Shen Hsieh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HSIEH CHUEN SHEN
Original Assignee
HSIEH CHUEN SHEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HSIEH CHUEN SHEN filed Critical HSIEH CHUEN SHEN
Publication of GB9302407D0 publication Critical patent/GB9302407D0/en
Publication of GB2269663A publication Critical patent/GB2269663A/en
Application granted granted Critical
Publication of GB2269663B publication Critical patent/GB2269663B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

A cooker hood comprises a fuel gas detector 31 which via an integrated circuit 32 and relay 33 automatically turns on a fan and motor assembly 2 and an alarm 34 upon detection of a fuel gas leakage. <IMAGE>

Description

VENTILATOR WITH FUEL GAS LEAKAGE DETECTION AND AUTO EXHAUST CONTROL BACKGROUND OF THE INVENTION The present invention relates to ventilators and relates more particularly to a ventilator for kitchen grease exhaust which has an alarm control device which gives an alarm and automatically turn on the fan and motor assembly thereof upon detection of a fuel gas leakage.
While boiling a kettle of water by a gas stove in the kitchen, the flame of the gas stove may be extinguished by the overflow of boiled water, if the kettle is kept at the boil, thereby causing a fuel gas leakage. A fuel gas leakage may also happen if the burner control knob of a gas stove is not turned off when the gas stove does no work. It is very dangerous if a fuel gas leakage is not immediately stopped after its occurrence.
SUMMARY OF THE INVENTION The present invention has been accomplished under the aforesaid circumstances. It is therefore an object of the present invention to provide a ventilator for kitchen grease exhaust which gives an alarm immediately upon the detection of a fuel gas leakage.
It is another object of the present invention to provide a ventilator for kitchen grease exhaust which automatically turns on a fan and motor assembly to remove the escaped fuel gas upon the detection of a fuel gas leakage. It is still another object of the present invention to provide a ventilator for kitchen grease exhaust which is safe in use.
According to the preferred embodiment of the present invention, a ventilator comprises an antiknock fan and motor assembly, and an alarm control device consisted of a fuel gas detector, a relay, an integrated circuit and an alarm. The antiknock fan and motor assembly and the alarm are simultaneously triggered to operate as a fuel gas leakage was detected by the fuel gas detector.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective plain view showing a ventilator of the present invention installed in a kitchen; Fig. 2 is a circuit diagram of the alarm control device of the ventilator; Fig. 3 is a plain view showing a fuel gas leakage detected by the alarm control of the ventilator; and Fig. 4 is another plain view showing the antiknock fan and motor assembly turned on to draw off the escaped flow of the fuel gas.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to Fig. 1, a ventilator as constructed in accordance with the present invention is generalLy comprised of a housing 1, an antiknock type fan and motor assembly 2, and an alarm control device 3.
Referring to Fig. 2, the alarm control device 3 comprises a fuel gas detector 31, an integrated circuit 32, an enclosed type relay 33 and an alarm 34.
Because the relay 33 is of an enclosed type, no sparks will be produced during its operation. If a fuel gas leakage is detected by the fuel gas detector 31, a signal is given to the integrated circuit 32 by the fuel gas detector 31 causing the integrated circuit 32 to turn on the alarm 34. At the same time, the enclosed type relay 33 is electrically connected to turn on the antiknock type fan and motor assembly 2 in removing leaked fuel gas.
Referring to Figs. 3 and 4, if the flame of the gas stove 4 was extinguished by the overflow of boiled water as the kettle is kept at the boil, a continuous flow of the fuel gas will be continuously discharged out of the gas stove 4 (see Fig. 3). Once the discharged flow of fuel gas 5 was detected by the fuel gas detector 31 of the alarm control device 3, the antiknock type fan and motor assembly 2 is immediately turned on to remove the discharged flow of the fuel gas out of the kitchen, at the same time the alarm 34 of the alarm control device 3 is triggered to give an alarm (see Fig. 4).
The embodiment described is simple in structure and therefore functional. However, it is to be understood that various changes could be made without departing from the scope of . the invention and the invention is not to be considered limited to what is shown in the drawings and described in the specification.

Claims (3)

What is claimed is:
1. A ventilator for kitchen grease exhaust comprising a housing, an antiknock type fan and motor assembly controlled by a switch control to draw off kitchen grease from a kitchen, and an alarm control device, wherein said alarm control device comprises a fuel gas detector controlled by an integrated circuit te detect the leakage of a fuel gas, an enclosed type relay connected between said integrated circuit and said antiknock type fan and motor assembly, and an alarm connected to said integrated circuit; said fuel gas detector gives a signal to said integrated circuit upon the detection of a fuel gas leakage, causing said integrated circuit to turn on said antiknock type fan and motor assembly and said alarm automatically.
2. A ventilator according to claim 1 and as herein described.
3. A ventilator as herein described with reference to. and as shown in, the accompanying drawings.
GB9302407A 1992-08-13 1993-02-08 Ventilator with fuel gas leakage detection and auto-exhaust control Expired - Fee Related GB2269663B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN92230207U CN2154970Y (en) 1992-08-13 1992-08-13 Cooker hood with detecting gas leakage and automatic discharge function

Publications (3)

Publication Number Publication Date
GB9302407D0 GB9302407D0 (en) 1993-03-24
GB2269663A true GB2269663A (en) 1994-02-16
GB2269663B GB2269663B (en) 1996-03-13

Family

ID=4971225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9302407A Expired - Fee Related GB2269663B (en) 1992-08-13 1993-02-08 Ventilator with fuel gas leakage detection and auto-exhaust control

Country Status (2)

Country Link
CN (1) CN2154970Y (en)
GB (1) GB2269663B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998028577A1 (en) * 1996-12-23 1998-07-02 Manuel Sierra Medina Domestic apparatus for detecting and expulsing gas
EP1035379A2 (en) * 1999-03-09 2000-09-13 D'Urania Electrodomesticos Decoration Cocinas S.L. Improved smoke extractor hood

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105674364A (en) * 2016-03-07 2016-06-15 杨跃龙 Range hood with firefighting assistant function
CN113339864A (en) * 2021-06-22 2021-09-03 朱万户 Gas-proof self-starting system of kitchen range hood

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989824A (en) * 1963-01-22 1965-04-22 George John Britton Carne Combined fume extraction unit and cooker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989824A (en) * 1963-01-22 1965-04-22 George John Britton Carne Combined fume extraction unit and cooker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998028577A1 (en) * 1996-12-23 1998-07-02 Manuel Sierra Medina Domestic apparatus for detecting and expulsing gas
EP1035379A2 (en) * 1999-03-09 2000-09-13 D'Urania Electrodomesticos Decoration Cocinas S.L. Improved smoke extractor hood
EP1035379A3 (en) * 1999-03-09 2002-07-24 D'Urania Electrodomesticos Decoration Cocinas S.L. Improved smoke extractor hood

Also Published As

Publication number Publication date
CN2154970Y (en) 1994-02-02
GB2269663B (en) 1996-03-13
GB9302407D0 (en) 1993-03-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970208