CN203657000U - Ignition device for gas stove - Google Patents
Ignition device for gas stove Download PDFInfo
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- CN203657000U CN203657000U CN201320879412.8U CN201320879412U CN203657000U CN 203657000 U CN203657000 U CN 203657000U CN 201320879412 U CN201320879412 U CN 201320879412U CN 203657000 U CN203657000 U CN 203657000U
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- gas
- ignition
- flame
- ignition electrode
- cooker
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Abstract
The utility model discloses an ignition device for a gas stove, belonging to the technical field of gas stove. The ignition device comprises an insulation ceramic body and an ignition needle which is arranged in the insulation ceramic body and electrically connected with a controller of a gas stove. The ignition device is characterized in that a metal grounding housing which is in grounding connection with the controller of the gas stove and is made of a metal, an ignition loop is formed between the metal grounding housing and the ignition needle, and during a combustion state after ignition, a flameout induction loop is formed among the ignition needle, flame and the metal grounding housing. Because the metal grounding housing is arranged outside the insulation ceramic body, the reliability of grounding can be ensured, the ignition loop is formed between the metal grounding housing and the ignition needle during ignition, and during a combustion state after ignition is completed, the flameout induction loop is formed among the ignition needle, the flame and the metal grounding housing, thus the structure is simplified, the convenience is brought for installation, limited space of the gas stove is prevented from being occupied, and the cost of the gas stove is lowered.
Description
Technical field
The utility model belongs to gas kitchen ranges technical field, is specifically related to the igniter that a kind of gas-cooker is used.
Background technology
As is known in the industry, the igniting of gas-cooker is that the igniter by being arranged on gas-cooker realizes, and the blowout protection of gas-cooker is to be realized by the flame-out protection device being arranged on gas-cooker.Igniter comprises insulating ceramics and is arranged on ignition electrode in insulating ceramics and that be electrically connected with the controller on gas-cooker, and flame-out protection device comprises insulating ceramics and is arranged on the inductive needle being electrically connected with the controller on gas-cooker in insulating ceramics and same.In the time will enabling gas-cooker, by to being arranged on ignition switch operations on gas-cooker and that be electrically connected with controller, ignition electrode electrion produces high-voltage spark between the metal fire cover of ignition electrode and gas-cooker, is lighted combustion gas and is entered fired state by high-voltage spark.In the time of fray-out of flame; because the loop that forms between inductive needle, flame and metal fire cover three disconnects, thereby controller can't detect loop signal, so controller is judged to be fray-out of flame; by controller, the self-priming valve on fuel gas path is closed, to embody flame-out safety protection function.
But; in actual use procedure; the probability of metal fire cover imperfect earth is higher; cause the function of flame-out protection device to be difficult to performance; so two flame-out protection devices are set conventionally on gas-cooker, by forming reliable flame loop inductance between two pieces of inductive needles of two flame-out protection devices and flame three.Although so structure has whether ground connection well and in the same old way can perception fray-out of flame whether strong point without worry metal fire cover, and security is also impeccable, but there is following technical problem: the one, produce trouble owing to can being restricted for the space that two flame-out protection devices are installed on gas-cooker, giving to install; The 2nd, owing to there being two flame-out protection devices, thereby increase the cost of gas-cooker; The 3rd, due to poor reliability; thereby be prone to sense faults; because only have two pieces of flame inductive needles perception simultaneously fray-out of flame Time Controllers of working as two flame-out protection devices to be just able to work and self-priming valve is closed; once so fray-out of flame; as long as there is one piece of flame inductive needle not respond to, just controller can not be judged so, self-priming valve is still in opening; leaking appears in combustion gas, leaves potential safety hazard.
In disclosed Chinese patent literature, can be seen in the technical information of the igniter that gas-cooker uses, " a kind of silicon nitride igniter " typically recommended as Granted publication CN202253749U, this patent scheme designs igniter and flame-out protection device as a whole and is jointly installed on a flange (patent claims mounting flange), by flange, two devices are installed on gas-cooker, understand known by the full text to this patent: although there is the technique effect of the 0009th section of record of description, but due to patent scheme only original independent igniter of installing and flame-out protection device are collected in together with, the ignition electrode of igniter and the loop of putting out the inductive needle of type fire-fighting protection device do not change, particularly, ignition circuit is still the loop forming between ignition electrode and metal fire cover, flame-out loop inductance is still the loop forming between flame inductive needle, flame and metal fire cover three, thereby in the time of metal fire cover imperfect earth, flame-out loop inductance just cannot form.In addition, in the time of metal fire cover imperfect earth, also can cause ignition difficulties.
In view of above-mentioned prior art, be necessary rational modification in addition, the applicant has done useful design for this reason, has finally formed technical scheme described below, and is taking under secrecy provision through simulated test, and it is practicable that result proves.
Summary of the invention
Task of the present utility model is to provide a kind of helping avoid to be subject to the impact of metal fire cover imperfect earth and to use the reliability that both ensures igniting and guarantee to form afterwards desirable flame-out loop inductance in igniting, be conducive to save installing space on gas-cooker and easy for installation and be of value to the igniter that the gas-cooker of the cheapness that embodies gas-cooker is used.
Task of the present utility model completes like this, the igniter that a kind of gas-cooker is used, comprise insulating ceramics body and be arranged on ignition electrode in insulating ceramics body and that be electrically connected with the controller of gas-cooker under use state, be characterised in that: described insulating ceramics external be provided with a material be metal and with the metal grounding shell of the controller grounding connection of gas-cooker, by forming ignition circuit between this metal grounding shell and described ignition electrode, and enter fired state after igniting time, by ignition electrode, between flame and metal grounding shell three, form flame-out loop inductance.
In a specific embodiment of the present utility model, the upper end of described ignition electrode leans out the upper end of insulating ceramics body and formation the ignition electrode syringe needle of a narrow contracting, between ignition electrode syringe needle and described metal grounding shell, form ignition circuit, and enter fired state after igniting time, by forming described flame-out loop inductance between ignition electrode syringe needle, described flame and metal grounding shell three.
In another specific embodiment of the present utility model, described insulating ceramics body forms and has an igniting discharge cavity towards a concave end of described ignition electrode syringe needle, and described ignition electrode syringe needle is positioned at igniting discharge cavity.
In another specific embodiment of the present utility model, described insulating ceramics body is silicon nitride ceramic body.
In another specific embodiment of the present utility model, be fixed with a mount pad outward at described metal grounding shell.
Also have in a specific embodiment of the present utility model, described mount pad is nonmetallic.
More of the present utility model and in a specific embodiment, described nonmetal be plastics or pottery.
The technical scheme that the utility model provides is due at the external metal grounding shell that is provided with of insulating ceramics, with respect to prior art by means of for metal fire cover ground connection, can ensure the reliability of ground connection, form ignition circuit in when igniting between by ignition electrode and metal grounding shell, enter fired state after igniting completes time, by forming and extinguish loop inductance between ignition electrode, flame and metal grounding shell three; Owing to having igniting and extinguish protection function concurrently, thereby significantly simplify the structure, not only easy for installation, and the cost that can avoid taking the confined space of gas-cooker and significantly reduce gas-cooker.
Accompanying drawing explanation
Fig. 1 is embodiment schematic diagram of the present utility model.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, applicant elaborates the mode with embodiment below, but be not all the restriction to the utility model scheme to the description of embodiment, any done according to the utility model design only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Refer to Fig. 1, provided an insulating ceramics body 1, be arranged on ignition electrode 2 in insulating ceramics body 1 and that be electrically connected with the controller of gas-cooker under use state.The technical essential of the technical scheme providing as the utility model: outside insulating ceramics body 1 take the mode of closely wrapping up be provided with a material as metal as aluminium, copper or stainless and with the metal grounding shell 3 of the ground terminal grounding connection of controller, by forming ignition circuit between this metal grounding shell 3 and ignition electrode 2, and enter fired state after ignition electrode 2 has been lighted a fire time, by forming flame-out loop inductance between ignition electrode 2, flame and metal grounding shell 3.For example, in the time of the fray-out of flame of gas-cooker, because the loop forming between ignition electrode 2, flame and metal grounding shell 3 threes disconnects, thereby controller can't detect loop signal, so controller is judged to be gas-cooker in flameout state, by controller, the self-priming valve on fuel gas path is closed, avoid gas leakage and accidents caused.Due to the principle of the flame-out loop inductance forming between ignition electrode 2, flame and metal grounding shell 3 threes be and prior art in inductive needle, flame, metal fire cover three between the principle of the flame-out loop inductance that forms and the connected mode being connected with controller be tending towards identical, for example can be referring to CN20253749U and CN102109179A, thereby applicant repeats no more.
As preferred scheme, the upper end of aforesaid ignition electrode 2 is (take shown position state as example, as follows) upper end and the formation that lean out insulating ceramics body 1 have an ignition electrode syringe needle 21 narrow contracting and sharp-pointed, between ignition electrode syringe needle 21 and aforementioned metal grounding shell 3, form ignition circuit, and complete after igniting at ignition electrode syringe needle 21, when gas-cooker enters fired state, by ignition electrode syringe needle 21, between flame and metal grounding shell 3 threes, form flame-out loop inductance.The lower end of ignition electrode 2 leans out equally insulating ceramics body 2 and is electrically connected with the controller of gas-cooker.
As shown in Figure 1, form and have an igniting discharge cavity 11 towards a concave end of aforementioned ignition electrode syringe needle 21 in the upper end of insulating ceramics body 1, ignition electrode syringe needle 21 is positioned at igniting discharge cavity 11 and the middle position corresponding to the discharge cavity 11 of lighting a fire.
Preferably, aforesaid insulating ceramics body 1 is silicon nitride ceramic body.Outside aforesaid metal grounding shell 3, be fixed with a mount pad 4, fixed form is preferably used adhesive cementation, and mount pad 4 adopts nonmetal as plastics or pottery.The effect of this mount pad 4 be as with the fixing support of gas-cooker.
As shown in the above description; the technical scheme that the utility model provides is owing to being wrapped with a metal grounding shell 3 at insulating ceramics body 1; thereby make the utility model that ignition function and extinguish protection function are held concurrently and obtained it, thereby confirm the technique effect in the superincumbent technique effect of applicant hurdle.
Claims (7)
1. the igniter that gas-cooker is used, comprise insulating ceramics body (1) and be arranged on ignition electrode (2) in insulating ceramics body (1) and that be electrically connected with the controller of gas-cooker under use state, it is characterized in that: described insulating ceramics body (1) be outside equipped with a material be metal and with the metal grounding shell (3) of the controller grounding connection of gas-cooker, by forming ignition circuit between this metal grounding shell (3) and described ignition electrode (2), and enter fired state after igniting time, by ignition electrode (2), between flame and metal grounding shell (3) three, form flame-out loop inductance.
2. the igniter that gas-cooker according to claim 1 is used, the upper end that it is characterized in that described ignition electrode (2) leans out the upper end of insulating ceramics body (1) and formation the ignition electrode syringe needle (21) of a narrow contracting, between ignition electrode syringe needle (21) and described metal grounding shell (3), form ignition circuit, and enter fired state after igniting time, by forming described flame-out loop inductance between ignition electrode syringe needle (21), described flame and metal grounding shell (3) three.
3. the igniter that gas-cooker according to claim 2 is used, it is characterized in that described insulating ceramics body (1) forms and has an igniting discharge cavity (11) towards a concave end of described ignition electrode syringe needle (21), described ignition electrode syringe needle (21) is positioned at igniting discharge cavity (11).
4. the igniter of using according to the gas-cooker described in claim 1 or 2 or 3, is characterized in that described insulating ceramics body (1) is silicon nitride ceramic body.
5. the igniter that gas-cooker according to claim 1 and 2 is used, is characterized in that being fixed with a mount pad (4) outside described metal grounding shell (3).
6. the igniter that gas-cooker according to claim 5 is used, is characterized in that described mount pad (4) is nonmetallic.
7. the igniter that gas-cooker according to claim 6 is used, it is characterized in that described nonmetal be plastics or pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879412.8U CN203657000U (en) | 2013-12-30 | 2013-12-30 | Ignition device for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879412.8U CN203657000U (en) | 2013-12-30 | 2013-12-30 | Ignition device for gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657000U true CN203657000U (en) | 2014-06-18 |
Family
ID=50923380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320879412.8U Expired - Fee Related CN203657000U (en) | 2013-12-30 | 2013-12-30 | Ignition device for gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712244A (en) * | 2013-12-30 | 2014-04-09 | 金春满 | Ignition device for gas stove |
-
2013
- 2013-12-30 CN CN201320879412.8U patent/CN203657000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712244A (en) * | 2013-12-30 | 2014-04-09 | 金春满 | Ignition device for gas stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |