CN201875765U - Control system of household gas cooker - Google Patents
Control system of household gas cooker Download PDFInfo
- Publication number
- CN201875765U CN201875765U CN2010206141087U CN201020614108U CN201875765U CN 201875765 U CN201875765 U CN 201875765U CN 2010206141087 U CN2010206141087 U CN 2010206141087U CN 201020614108 U CN201020614108 U CN 201020614108U CN 201875765 U CN201875765 U CN 201875765U
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- controller
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- thermocouple
- circuit
- control system
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Abstract
The utility model discloses a control system of a household gas cooker, comprising a controller, a self-suction valve and thermocouples. One thermocouple is arranged on each burner; each thermocouple is connected with the controller which is also connected with a micro switch of a spray point of each burner; and the self-suction valve is installed on a main gas path and is connected with the controller. The controller comprises a singlechip which is respectively connected with a micro switch connection circuit, a self-suction valve driving circuit, a thermocouple conversion circuit and an oscillation transformer; and the oscillation transformer is further connected with an inverter board corresponding to each micros witch. The control system of the household gas cooker has the advantages that the controller has a simple circuit, higher stability and a smaller volume and is accurate and reliable in judging; in addition, the cost is reduced.
Description
Technical field
The utility model relates to a kind of household gas utensils control system.
Background technology
Present household gas utensils control system has dual mode to the judgement of flame, and a kind of is ion induction type, and another kind is the thermocouple electromagnetic type.Ion induction type is by flame calcination inductive needle, produces ion signal, is used as the basis for estimation of non-flaming combustion, and flame combustion is arranged, and ion signal is then arranged, and controller is exported the voltage of keeping of self-priming valve, and self-priming valve is opened, and keeps gas circuit unimpeded; Fray-out of flame, ion signal disappears, and controller is not exported self-priming valve and is kept voltage, and self-priming valve is closed, and gas circuit is turn-offed.The thermocouple electromagnetic type is that each burner all has a small electrical magnet valve, this magnetic valve links to each other with the termination of thermocouple, and during flame combustion, thermocouple produces weak voltage, this voltage directly drives magnetic valve, magnetic valve is opened, and keeps gas circuit unimpeded, during fray-out of flame, thermocouple electromotive force disappears, magnetic valve does not have driving voltage, closes, and gas circuit is turn-offed.
More than two kinds of flame judgment modes its drawback is all arranged: ion induction type is very big to the dependence of inductive needle, kitchen range in use for some time, owing to reasons such as soup erosion and oxidations, might self produce the electromotive force that does not disappear, disturb the flame ion signal, cause flame in burning, controller does not but receive normal signal, and then close self-priming valve, cause the complete machine cisco unity malfunction; Secondly, due to the principle of ion induction type, the component number of controller flame detection circuit part is many, and higher to the stability requirement of components and parts, so cause the probability of failure of circuit higher.The small electrical magnet valve that thermocouple electromagnetic type kitchen range are adopted, be to come work by the weak voltage that thermocouple produces, this requirement to magnetic valve is very high, and the less stable of this small electrical magnet valve, time has been grown the as easy as rolling off a log phenomenon that the winding sealing-off occurs, causes the kitchen range fault; Secondly, this small electrical magnet valve price is higher, and adding each burner all needs the distribution magnet valve, and magnetic valve quantity equates with burner quantity, has caused the cost of complete machine to rise.
The utility model content
The utility model has overcome shortcoming of the prior art, and a kind of household gas utensils control system is provided, and has improved the accuracy that flame detects, and controller circuitry is simple, and stability is high.
The technical solution of the utility model is: a kind of household gas utensils control system comprises controller, self-priming valve and thermocouple; A thermocouple is set on each burner, and each thermocouple is connected with controller; Controller also is connected with the microswitch of the spray point of each burner; A self-priming valve is installed on main gas circuit, and self-priming valve is connected with controller.
Described controller comprises single-chip microcomputer, and single-chip microcomputer is connected with microswitch connecting circuit, self-priming valve drive circuit, thermocouple change-over circuit, oscillation transformer respectively, and oscillation transformer is connected with the corresponding high voltage package of each microswitch again.
Compared with prior art, the utility model has the advantages that: by thermocouple produce faint, it is done suitable conversion, be used as the judgement signal of flame combustion, controller has judged whether flame combustion whether to receive this signal: if signal is arranged, controller output self-priming valve is kept voltage, keep gas circuit to open, if no signal, controller are not exported self-priming valve and kept voltage, gas circuit is closed.Therefore, the circuit of controller is simpler than the controller of ion induction type, and stability is higher, and volume is littler, and this flame judgment mode is judged more accurately and reliably than the flame of ion induction type; Because the operating voltage of self-priming valve is exported by controller, so the kitchen range complete machine only need be installed a self-priming valve on main gas circuit, rather than the quantity and the burner quantity of magnetic valve equates as common thermojunction type kitchen range, reduced cost, and, self-priming valve that the technical program adopted and existing common kitchen range self-priming valve are identical, so parts procurement is convenient; The sort of small electrical magnet valve on the common thermojunction type kitchen range, operating voltage is low, and the easy sealing-off of coil causes the complete machine fault, and cost is higher, and the utility model has been avoided using this magnetic valve, and adopts general self-priming magnetic valve, and stability is higher.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the electrical block diagram of controller of the present utility model.
The specific embodiment
A kind of household gas utensils control system as shown in Figure 1, comprising: power supply, controller, self-priming valve, switch, thermocouple.A thermocouple is set on each burner, and each thermocouple is connected with controller, and controller is connected with power supply, is the controller power supply by power supply; Controller also is connected with the microswitch of the spray point of each burner, the igniting discharge of control spray point.A self-priming valve is installed on main gas circuit, and self-priming valve is connected with controller, provides driving voltage by controller.
As shown in Figure 2, the circuit formation of controller comprises: single-chip microcomputer, single-chip microcomputer is connected with microswitch connecting circuit, self-priming valve drive circuit, oscillation transformer, thermocouple change-over circuit respectively, and oscillation transformer is connected with the corresponding high voltage package of each microswitch again.The function of each several part is: the microswitch connecting circuit is connected with corresponding kitchen range microswitch, receives the action of microswitch.When microswitch was opened, single-chip microcomputer was controlled the oscillation transformer starting of oscillation immediately, began discharge igniting with the corresponding high voltage package of microswitch, and in the high voltage package discharge, Single-chip Controlling self-priming valve drive circuit is opened self-priming valve, kept gas circuit unimpeded.The effect of thermocouple change-over circuit is the voltage signal that the weak current that thermocouple produces is converted to the identification of monolithic function, behind the voltage signal of single-chip microcomputer after receiving conversion, judging point pyrogene merit, control the oscillation transformer failure of oscillations then, and then high voltage package stops discharge igniting, controls the self-priming valve drive circuit simultaneously and keeps opening by self-priming valve.On the contrary; if single-chip microcomputer does not receive the voltage signal after the conversion; judge that then loss of ignition or flame accident extinguish; controlling the self-priming valve drive circuit immediately turn-offs by self-priming valve; thereby the shutoff gas circuit shields, in this case; single-chip microcomputer is also controlled buzzer and is sounded the alarm, and reminds user's loss of ignition or flame accident to extinguish.
Operation principle of the present utility model is: power connection, and kitchen range are started working, and open any one microswitch, the spray point discharge on the corresponding burner, the self-priming valve of controller output simultaneously driving voltage is opened self-priming valve, and flame takes fire.Because thermocouple self-characteristic, need 3-5 could produce stable electromotive force after second, controller begins after thermocouple electromotive force is stable to detect whether the signal input is arranged: when thermocouple is passed signal back, flame combustion has been described, controller output self-priming valve is kept voltage, keeps gas circuit to open; When no thermocouple is passed signal back, non-flaming combustion is described then, controller is not exported self-priming valve and is kept voltage, and gas circuit is closed.
Claims (2)
1. a household gas utensils control system is characterized in that: comprise controller, self-priming valve and thermocouple; A thermocouple is set on each burner, and each thermocouple is connected with controller; Controller also is connected with the microswitch of the spray point of each burner; A self-priming valve is installed on main gas circuit, and self-priming valve is connected with controller.
2. household gas utensils control system according to claim 1, it is characterized in that: described controller comprises single-chip microcomputer, single-chip microcomputer is connected with microswitch connecting circuit, self-priming valve drive circuit, thermocouple change-over circuit, oscillation transformer respectively, and oscillation transformer is connected with the corresponding high voltage package of each microswitch again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141087U CN201875765U (en) | 2010-11-19 | 2010-11-19 | Control system of household gas cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141087U CN201875765U (en) | 2010-11-19 | 2010-11-19 | Control system of household gas cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875765U true CN201875765U (en) | 2011-06-22 |
Family
ID=44163682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206141087U Expired - Fee Related CN201875765U (en) | 2010-11-19 | 2010-11-19 | Control system of household gas cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151079A (en) * | 2018-01-31 | 2018-06-12 | 佛山市云米电器科技有限公司 | A kind of igniting and energy saving formula kitchen range |
-
2010
- 2010-11-19 CN CN2010206141087U patent/CN201875765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151079A (en) * | 2018-01-31 | 2018-06-12 | 佛山市云米电器科技有限公司 | A kind of igniting and energy saving formula kitchen range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU QIANFENG ELECTRONICS CO., LTD. Free format text: FORMER OWNER: CHENGDU QIANFENG ELECTRONIC APPLIANCES GROUP CO., LTD. Effective date: 20131119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131119 Address after: 611731 vanguard Industrial Park, No. 79 herb Road, hi tech West District, Sichuan, Chengdu Patentee after: Chengdu Qianfeng Electronics Co., Ltd. Address before: 611731 Chengdu province high tech West Road, No. 79, South Road, Sichuan Patentee before: Chengdu Chiffo Electronics (Group) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20181119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |