CN2765082Y - Controllable electric thermocouple type electromagnetic gas valve - Google Patents
Controllable electric thermocouple type electromagnetic gas valve Download PDFInfo
- Publication number
- CN2765082Y CN2765082Y CN 03231362 CN03231362U CN2765082Y CN 2765082 Y CN2765082 Y CN 2765082Y CN 03231362 CN03231362 CN 03231362 CN 03231362 U CN03231362 U CN 03231362U CN 2765082 Y CN2765082 Y CN 2765082Y
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- China
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- gas valve
- electromagnetic gas
- thermocouple
- type electromagnetic
- relay
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Abstract
The utility model relates to a thermocouple type electromagnetic gas valve. The structure of a traditional gas cooking stove which has the function of automatic control (such as has the function of timing shutoff) is equally complicated. The utility model needs to comprise a gas valve besides a traditional thermocouple type electromagnetic gas valve, wherein the gas valve realizes the timing shutoff. The purpose of the utility model is to two the combination of the two gas valves. Therefore, the thermocouple type electromagnetic gas valve comprises a thermocouple and an electromagnetic gas valve, wherein the thermocouple and a magnet winding in the electromagnetic gas valve are formed into a series loop. The utility model is characterized in that the thermocouple type electromagnetic gas valve also comprises a relay, wherein the relay is provided with a normally closed contact and the normally closed contact of the relay is connected in series with the series loop which is formed from the thermocouple and the magnet winding in the electromagnetic gas valve.
Description
Technical field
The utility model relates to a kind of electromagnetic gas valve, is applied on the gas kitchen ranges, relates in particular to a kind of controllable thermojunction type electromagnetic gas valve, to realize turn-offing electromagnetic gas valve by extraneous means.
Background technology
At present, for security consideration, the square greatly gas kitchen ranges that has required the resident to use all has when combustion gas is extinguished unusually, can cut off the function of source of the gas automatically.What wherein be most widely used is the thermojunction type electromagnetic gas valve.This thermojunction type electromagnetic gas valve generally comprises a thermocouple and an electromagnetic gas valve, and the electromagnetism winding in thermocouple and the electromagnetic gas valve constitutes series loop, and thermocouple is arranged near the burner of kitchen range.When burner combustion, thermocouple is heated, and produces tens millivolts electromotive force.Because the internal resistance of thermocouple is very little, make that the electromagnetism winding in parallel with the thermocouple two ends obtains more than 100 milliampere electric current, overcome spring force and adhesive after the spool in the electromagnetic gas valve is magnetized, thereby keep the source of the gas opening state.As long as duration and degree of heating does not go out, the electromotive force of thermocouple just can not disappear, and electromagnetic gas valve just remains adhesive.
When duration and degree of heating extinguishes unusually owing to reasons such as wind, water water, the thermocouple cooling, electromotive force disappears, electromagnetism winding dead electricity, spool loses magnetic force, resets under the effect of spring, thereby cuts off source of the gas, reaches the purpose of safe handling gas kitchen ranges.
In this traditional gas kitchen ranges, under normal circumstances, general all by the next artificial opening and closing combustion gas of knob switch.Along with the raising of people's lives, occurred can automatic self-closing gas kitchen range, for example, utilize timer to close kitchen range automatically.Yet, the structure more complicated of this kitchen range, all need one of in addition configuration independently air valve turn-off fuel gas path, thereby improved the cost of kitchen range.
The utility model content
The purpose of this utility model promptly is traditional thermojunction type electromagnetic gas valve is improved, use can be subjected to extraneous control, except realizing under the abnormal conditions, automatically cut off the function of fuel gas path, can also reach the function of automatic self-closing gas under normal circumstances, thereby reach one-object-many-purposes, reduce the cost of kitchen range, promote product competitiveness.
According to above-mentioned purpose, thermojunction type electromagnetic gas valve of the present utility model comprises thermocouple and electromagnetic gas valve, electromagnetism winding in described thermocouple and the described electromagnetic gas valve constitutes series loop, it is characterized in that, described thermojunction type electromagnetic gas valve comprises that also one has the relay of normally-closed contact, and the normally-closed contact of described relay is serially connected in the series loop of the electromagnetism winding formation in described thermocouple and the described electromagnetic gas valve.
By above-mentioned simple improvement, the utility model can be realized above-mentioned purpose.On the one hand, because the internal resistance of the normally-closed contact of relay is very little, therefore, in above-mentioned series loop, seals in this normally-closed contact again and can the original function of thermojunction type electromagnetic gas valve not impacted.When thermocouple was heated, it still can produce more than 100 milliampere electric current in series loop, make the electromagnetic gas valve adhesive.On the other hand, owing in series loop, be connected in series relay, make the thermojunction type electromagnetic gas valve can be subjected to extraneous control, for example, can on the control end of relay, connect a timer, when timing is scheduled in timer arrival, send a control signal to this relay, relay is opened by normally closed becoming, and series loop at this moment is disconnected.Though thermocouple is still at the generation electromotive force that is heated, because the loop is disconnected, in series loop, can not produce electric current, make electromagnetism winding dead electricity, spool loses magnetic force, resets under the effect of spring, thereby plays the effect of automatic cut-out source of the gas.
Description of drawings
Describe specific embodiment of the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of thermojunction type electromagnetic gas valve of the present utility model.
The specific embodiment
Thermojunction type electromagnetic gas valve of the present utility model is to have done improvement on traditional basis that comprises thermocouple and electromagnetic gas valve.
As shown in Figure 1, thermojunction type electromagnetic gas valve of the present utility model also comprises a relay 3 that has normally-closed contact 31 except comprising thermocouple 1 and electromagnetic gas valve 2.Electromagnetism winding 21 in thermocouple 1, the electromagnetic gas valve 2 and the normally-closed contact of relay 3 31 constitute series loop.Thermocouple 1 is the same with traditional mode, is placed near the burner 4 of kitchen range.
During use, the user promotes the spool 22 in the electromagnetic gas valve 2 by ignition switch 5 (this ignition switch can adopt conventional version, only is schematic diagram among the figure), makes the conducting of combustion gas gas circuit (not shown), and combustion gas can enter burner 4 and burning.Place this moment near the thermocouple 1 the burner 4 to be heated, produce electromotive force, thereby in the series loop that constitutes by thermocouple 1, electromagnetism winding 21 and normally-closed contact 31, form more than 100 milliampere electric current, overcome spring force (illustrating among the figure) and adhesive after spool 22 in the electromagnetic gas valve 2 is magnetized, thereby keep the source of the gas opening state.
If this moment, thermocouple 1 cooled off when extinguishing unusually because of reasons such as wind, water water fire point, electromotive force disappears, electromagnetism winding 21 dead electricity, and spool 22 loses magnetic force, resets under the effect of spring, thereby cuts off source of the gas, reaches the purpose of safe handling gas kitchen ranges.
On the other hand, if under the situation of normal combustion, the control end of relay 3 receives a control signal, and the contact of relay 3 is opened by normally closed becoming, and then series loop is disconnected.Though thermocouple 1 is still at the generation electromotive force that is heated, because the loop is disconnected, in series loop, can not produce electric current, make electromagnetism winding 21 dead electricity, spool 22 loses magnetic force, resets under the effect of spring, thereby plays the effect of automatic cut-out source of the gas.The device that control signal is provided here can be a timer 6 as shown in Figure 1, and after timer 6 arrived predetermined timing, timer sent control signal to relay.It only is concrete an application of the present utility model that the timer here turn-offs, and the utility model thermojunction type magnetic valve also can be applicable to others, for example, also can control by computer, thereby realize the purpose of able to programme or Long-distance Control.Because these application are not content of the present utility model, therefore, are not described in detail in this.These technology all are to understand easily for the person skilled in art.
In sum, the key technology point that the utility model solved is, has realized realizing the gas kitchen ranges purpose of control automatically by air valve is set in addition for a long time by a simple relay, thereby has simplified the structure, and has reduced cost.In addition, the utility model can also remake some improvement, for example adopts two group normally-closed contacts in relay, the resistance that brings to series loop with further reduction relay.
Claims (2)
1, a kind of thermojunction type electromagnetic gas valve, comprise thermocouple and electromagnetic gas valve, electromagnetism winding in described thermocouple and the described electromagnetic gas valve constitutes series loop, it is characterized in that, described thermojunction type electromagnetic gas valve comprises that also one has the relay of normally-closed contact, and the normally-closed contact of described relay is serially connected in the series loop of the electromagnetism winding formation in described thermocouple and the described electromagnetic gas valve.
2, thermojunction type electromagnetic gas valve as claimed in claim 1 is characterized in that, described relay adopts two group normally-closed contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231362 CN2765082Y (en) | 2003-05-22 | 2003-05-22 | Controllable electric thermocouple type electromagnetic gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231362 CN2765082Y (en) | 2003-05-22 | 2003-05-22 | Controllable electric thermocouple type electromagnetic gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765082Y true CN2765082Y (en) | 2006-03-15 |
Family
ID=36168000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231362 Expired - Fee Related CN2765082Y (en) | 2003-05-22 | 2003-05-22 | Controllable electric thermocouple type electromagnetic gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765082Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102906503A (en) * | 2010-05-27 | 2013-01-30 | 伊莱克斯家用产品股份有限公司 | Gas-fired kitchen appliance |
-
2003
- 2003-05-22 CN CN 03231362 patent/CN2765082Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102906503A (en) * | 2010-05-27 | 2013-01-30 | 伊莱克斯家用产品股份有限公司 | Gas-fired kitchen appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |