CN209341305U - Flame-out protection device - Google Patents
Flame-out protection device Download PDFInfo
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- CN209341305U CN209341305U CN201821603172.8U CN201821603172U CN209341305U CN 209341305 U CN209341305 U CN 209341305U CN 201821603172 U CN201821603172 U CN 201821603172U CN 209341305 U CN209341305 U CN 209341305U
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- Prior art keywords
- flame
- inductive head
- protection device
- out protection
- ceramic body
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- 230000001939 inductive effect Effects 0.000 claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims description 3
- 230000005619 thermoelectricity Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 description 13
- 239000007789 gas Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Control Of Combustion (AREA)
Abstract
The utility model discloses a flame-out protection device, including ceramic body, ignition needle, ignition wire, thermocouple wire, inductive head, sleeve and ground wire, wherein the ignition needle with the ignition wire link to each other and install together in the ceramic body, the thermocouple wire with the inductive head links to each other, the cover barrel casing is located the thermocouple wire outer and rather than install together in the ceramic body, the sleeve with the ground wire links to each other, and its response is quick, reliable.
Description
Technical field
The utility model relates to gas-cooker technical field more particularly to a kind of flame-out protection devices.
Background technique
In the related technology, inductive needle is the kernel component on kitchen range, plays a part of to incude flame, with controller, valve body
The blowout protection function of kitchen range is realized in equal linkages, controls the on-off of combustion gas.At present blowout protection mode mainly have thermojunction type and
Ion incudes two kinds of pin type.
One, thermojunction type makes its generation electromotive force maintain battery valve normally opened the burning of thermocouple by flame, but
It is that there is following problems:
1, when starting to light kitchen range, flame starts the thermocouple that burns, but electric thermo-couple temperature can not rise very high in moment,
The electromotive force of generation maintains the actuation of solenoid valve not enough, this requires that must not loose one's grip immediately after operator's igniting, need to keep several
Second, when flame burns thermocouple to about 600 DEG C, the electromotive force that thermocouple could generate 10mV or so maintains solenoid valve to inhale
It closes, guarantees gas circulation.Since hand and the time without quantifying to need to wait for cannot be unclamped after igniting immediately, it is easy to cause to light a fire
Failure, influences the experience of user.
2, when kitchen range are due to accident extinguishings such as winds, the temperature of thermocouple cannot decline moment, and the electromotive force of generation is same
Sample is unable to pop-off, cannot cut off gas source immediately, lead to gas leakage, there are security risks.
Two, ion induction pin type solves the above problem existing for thermojunction type mistake, it is by the negative ions in flame
Current loop is formed, and signal is passed into controller drive magnetic valve and is kept open；When fray-out of flame, current signal
It disappears, controller drive magnetic valve is closed, and gas source is cut off.There are single needle circuit and crosspointer circuit two ways in estimated current circuit,
Single needle circuit constitutes circuit by ignition electrode and fire cover, distributor, burner, and crosspointer circuit is by ignition electrode and inductive needle (i.e. ground wire needle)
Composition, but it has the following problems:
1, incude in single needle circuit since the oxidation such as fire cover, distributor, burner, corrosion and foul accumulation disconnect circuit
Disabler.
2, crosspointer circuit makes ignition electrode be connected to forming circuit with inductive needle by flame ion, when gas pressure reduces, use
Family, which turns most small fire Shi Douhui, makes the reduction of flame ion concentration, and ionic current is caused to reduce, and induction erroneous judgement occurs.
3, in addition, in two kinds of circuits, when due to certain humidity booty or metal fragment fall ignition electrode with
When between fire cover or inductive needle, controller has detected current loop (i.e. " false fire "), so that accident extinguishing occurs and is not related to valve,
A series of problems, such as misfiring.
Utility model content
The utility model one of is intended to solve the problems, such as at least to a certain extent present in existing the relevant technologies, for this purpose,
The utility model proposes a kind of flame-out protection devices, and induction is quickly, reliably.
Above-mentioned purpose is achieved by the following technical solution:
A kind of flame-out protection device, including ceramic body, ignition electrode, ignition lead, thermocouple wire, inductive head, sleeve and ground wire,
Wherein the ignition electrode is connected with the ignition lead and is installed in the ceramic body together, the thermocouple wire and the induction
Head is connected, and the sleeve is sheathed on outside the thermocouple wire and is therewith installed in the ceramic body, the sleeve and institute
Ground wire is stated to be connected.
In some embodiments, the thermocouple wire is extend into the inductive head, is provided in the inductive head
Filler.
In some embodiments, fire hole is provided on the inductive head.
In some embodiments, described inductive head one end extend into the ceramic body and is connected with the ceramic body.
In some embodiments, described sleeve one end is connected with the ground wire, and the other end is extend into the inductive head.
In some embodiments, the ignition lead and thermocouple wire are used for serial ports phase corresponding with the controller of kitchen range
Even, the ground wire with the shell of kitchen range for being connected.
The utility model compared with prior art, at least has the effect that
1, the flame-out protection device of the utility model, induction is quickly, reliably.
Other beneficial outcomes of the utility model will be explained in conjunction with attached drawing in a specific embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flame-out protection device in the utility model embodiment；
Fig. 2 is the partial enlarged view of part A in Fig. 1；
Fig. 3 is the flow diagram of production method in the utility model embodiment.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Embodiment one: as depicted in figs. 1 and 2, the present embodiment provides a kind of flame-out protection devices, including ceramic body 1, point
Fiery needle 2, ignition lead 3, thermocouple wire 4, inductive head 5, sleeve 6 and ground wire 7, wherein ignition electrode 2 is connected with ignition lead 3 and pacifies together
Loaded in ceramic body 1, thermocouple wire 4 is connected with inductive head 5, and sleeve 6 is sheathed on outside thermocouple wire 4 and is therewith installed on pottery
In porcelain body 1, sleeve 6 is connected with ground wire 7.
The flame-out protection device of the present embodiment, induction is quickly, reliably.By the design of double induction channels, solve " false
Fire " does not fall the problems such as valve, mild fire are flame-out, accident extinguishing closes valve lag.
The flame principle of induction of the present embodiment flame-out protection device is explained as follows below:
(1) inductive head 5, sleeve 6 and ground wire 7 are linked together composition ground wire component, when kitchen range burn, generate ionic current and connect
Logical ignition electrode 2 and ground wire 7, form current loop, in the following description referred to as the first circuit；
(2) by the fire hole being opened at inductive head 5, kitchen range increase inductive head 5 and 4 temperature of thermocouple wire when burning,
Thermocouple generates electromotive force, to judge flame, referred to as second servo loop in the following description；
(3) two kinds of induction modes are parallel relationship, and either type all can determine whether flame, both solve to press existing for thermojunction type
The problem of pressing knob overlong time, accident extinguishing to close valve lag, but easily flame-out, burner is exhausted because aoxidizing when solution ionic formula mild fire
Edge leads to induction failure, " false fire ", keeps flame induction relatively reliable, quick.
Preferably, thermocouple wire 4 is extend into inductive head 5, and filler 8 is provided in inductive head 5, passes through filling out for setting
Certain protection can be carried out to thermocouple wire 4 and thermocouple wire 4 and inductive head 5 are connected by filling object 8.
Further, it is provided with fire hole on inductive head 5, directly in inductive head 5 when enabling the kitchen range to burn with this
Thermocouple wire 4 carry out combustion heating, thermocouple wire 4 is quickly reacted, improve thermocouple wire 4 induction speed and
The reliability of work.
Particularly, 5 one end of inductive head extend into ceramic body 1 and is connected with ceramic body 1, can improve installation inductive head 5 with this
Stability, avoid inductive head 5 from loosening or damage during use.
Preferably, 6 one end of sleeve is connected with ground wire 7, and the other end extend into inductive head 5 and links into an integrated entity with inductive head 5,
Its structure is simple, easy to connect, and the reliability that product uses can be improved.
In the present embodiment, ignition lead 3 and thermocouple wire 4 are connected for serial ports corresponding with the controller of kitchen range, ground wire 7
It is connected for the shell with kitchen range.
The working principle of the present embodiment flame-out protection device is explained as follows below:
1, serial ports corresponding with controller is connected respectively for ignition lead 3 and thermocouple wire 4, and solenoid valve passes through micro- on plug valve
Dynamic switching signal is controlled, and is solved " false fire " and is not fallen the problems such as valve, mild fire are flame-out, accident extinguishing closes valve lag；
2, two circuit independent detections, when disconnecting the first circuit due to ignition electrode 2 and 5 high-temperature oxydation of inductive head, the
Secondary circuit judges flame by detection temperature, while signal can be fed back to user and controller, prompts the first partial failure,
It may be due to insulation caused by aoxidizing；
3, when due to there is the booty of certain humidity to fall between ignition electrode 2 and inductive head 5, second servo loop passes through detection
Temperature judges flame, and flame makes water, so that the first circuit is restored normal, self-regeneration because of humidity booty caused by it is " false
Fire "；Caused by metal fillings is fallen between ignition electrode 2 and inductive head 5 " false fire ", if user has cooked valve body, the
Primary Ioops are still access, then can determine whether to prompt user to clear up in time for there are metal fillings.
Embodiment two: it is as shown in Figure 1, Figure 2 and Figure 3, the present embodiment provides a kind of production method of flame-out protection device,
For making the flame-out protection device as described in embodiment one, production method includes:
S101: ignition electrode 2 is installed in ceramic body 1 together with after the connection of ignition lead 3 by it, specifically, by ignition electrode 2
It is placed in ceramic body 1 together with after the connection of ignition lead 3 by it, it is filled and is fixed using high-temp glue；
S102: thermocouple wire 4 and inductive head 5 are linked together, and specifically, thermocouple wire 4 and inductive head 5 are welded on
It is packaged using high-temp glue afterwards together；
S103: it is installed on together in ceramic body 1 after sleeve 6 is sheathed on outside thermocouple wire 4, specifically, by sleeve 6
It is placed in together in ceramic body 1 after being sheathed on outside thermocouple wire 4, it is filled and is fixed using high-temp glue, at this
In embodiment, it is interference fitted between sleeve 6 and thermocouple wire 4 or sleeve 6 and thermocouple wire 4 is integrally welded.
S104: sleeve 6 and ground wire 7 are linked together.
The production method of the flame-out protection device of the present embodiment, easy to make, simple, cost is relatively low, and product has very
The strong market competitiveness, the flame-out protection device induction made quickly, it is reliable, the specific structure of flame-out protection device and have
Beneficial effect is described in detail in embodiment one, is no longer repeated herein.
Finally, by ignition lead 3 and thermocouple wire 4, serial ports corresponding with the controller of kitchen range links together respectively, by ground
Line 7 and the shell of kitchen range link together, and thus complete the connection between flame-out protection device and kitchen range.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to practical
Novel protection scope.
Claims (6)
1. a kind of flame-out protection device, which is characterized in that including ceramic body (1), ignition electrode (2), ignition lead (3), thermocouple wire
(4), inductive head (5), sleeve (6) and ground wire (7), wherein the ignition electrode (2) is connected with the ignition lead (3) and installs together
In the ceramic body (1), the thermocouple wire (4) is connected with the inductive head (5), and the sleeve (6) is sheathed on the heat
Galvanic couple line (4) is installed on outside and therewith in the ceramic body (1), and the sleeve (6) is connected with the ground wire (7).
2. a kind of flame-out protection device according to claim 1, which is characterized in that the thermocouple wire (4) extend into institute
It states in inductive head (5), is provided with filler (8) in the inductive head (5).
3. a kind of flame-out protection device according to claim 1, which is characterized in that be provided on the inductive head (5)
Fire hole.
4. a kind of flame-out protection device according to claim 1,2 or 3, which is characterized in that stretch described inductive head (5) one end
Enter and is connected into the ceramic body (1) with the ceramic body (1).
5. a kind of flame-out protection device according to claim 4, which is characterized in that described sleeve (6) one end is with described
Line (7) is connected, and the other end is extend into the inductive head (5).
6. a kind of flame-out protection device according to claim 1,2 or 3, which is characterized in that the ignition lead (3) and thermoelectricity
Amphitene (4) is connected for serial ports corresponding with the controller of kitchen range, and the ground wire (7) with the shell of kitchen range for being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821603172.8U CN209341305U (en) | 2018-09-29 | 2018-09-29 | Flame-out protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821603172.8U CN209341305U (en) | 2018-09-29 | 2018-09-29 | Flame-out protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209341305U true CN209341305U (en) | 2019-09-03 |
Family
ID=67745380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821603172.8U Active CN209341305U (en) | 2018-09-29 | 2018-09-29 | Flame-out protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209341305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386849A (en) * | 2018-09-29 | 2019-02-26 | 华帝股份有限公司 | Flameout protection device and manufacturing method |
-
2018
- 2018-09-29 CN CN201821603172.8U patent/CN209341305U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386849A (en) * | 2018-09-29 | 2019-02-26 | 华帝股份有限公司 | Flameout protection device and manufacturing method |
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