CN200950531Y - Synthesized security control alarm for cooking facilities - Google Patents
Synthesized security control alarm for cooking facilities Download PDFInfo
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- CN200950531Y CN200950531Y CN 200620010242 CN200620010242U CN200950531Y CN 200950531 Y CN200950531 Y CN 200950531Y CN 200620010242 CN200620010242 CN 200620010242 CN 200620010242 U CN200620010242 U CN 200620010242U CN 200950531 Y CN200950531 Y CN 200950531Y
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Abstract
An alarm apparatus to comprehensively control the safety of kitchen equipments which comprises an alternating current contactor, a circuit, an alarm display circuit which is provided with a leakage signal sampling circuit and a water deficiency signal circuit. The alternating current contactor being positioned on a three-phase main line, the input end of the circuit being communicated with the three-phase main line, the output end of the circuit being communicated with the input end of the leakage signal sampling circuit, the water deficiency signal circuit and the alarm display circuit respectively, the output end of the alarm display circuit being communicated with the control end of the alternating current contactor, the water deficiency signal circuit being communicated with a probe-when the kitchen equipments come to leak electricity or lack water, the model can send out alarm signals and quickly cut off the three-phase main line which can protect the equipments and can prevent the kitchen equipments from leaking electricity and being boiled without water to stay in a safe and reliable state. The model is mainly used for such equipments as electric steamboxes, electrocaloric water machines, steaming carts and steaming cabinets and so on.
Description
Technical field
A kind of cooking apparatus comprehensive safety control of the utility model alarm belongs to the kitchen security appliance field.
Background technology
In daily life, people make the electrical appliance cooker in the kitchen of being everlasting, as electric heater, electric food warmer, microwave oven or the like.Metallic plate is a lot of in the kitchen, and laying wire is many, and after service time was very long, greasy dirt, steam made easily leaky takes place in the kitchen.After making the electrical appliance cooker, forget that owing to ignoring carelessness pulling out plug causes the dry combustion method of electrical equipment cooker, be short-circuited easily, even breaking out of fire.Existing electric leakage alarm device and water insufficiency alarm device all are the single type devices, lack the function of integrated protection.
The utility model content
The purpose of this utility model is to provide a kind of cooking apparatus comprehensive safety control alarm, can prevent kitchen appliance electric leakage and dry combustion method, and is safe and reliable, the convenient use.
Cooking apparatus comprehensive safety control alarm described in the utility model, comprise A.C. contactor, power circuit and warning indicating circuit, if electric leakage signal sample circuit and lack of water signal sampling circuit, A.C. contactor is arranged on the three phase mains main line, the input of power circuit connects the three phase mains main line, the output of power circuit connects the electric leakage signal sample circuit respectively, the power input of lack of water signal sampling circuit and warning indicating circuit, the electric leakage signal sample circuit is connected the input of warning indicating circuit with the output of lack of water signal sampling circuit, the output of warning indicating circuit connects the control end of A.C. contactor, and the lack of water signal sampling circuit is connected with probe.
Operation principle: under the normal operation, because not electric leakage does not have the lack of water phenomenon yet, electric leakage signal sample circuit and lack of water signal sampling circuit were owing to detect less than electric leakage signal and lack of water signal, so do not work when cooking apparatus normally moved.The warning indicating circuit can not get the actuating signal that electric leakage signal sample circuit and lack of water signal sampling circuit are sent here, powers to the load so continue the control A.C. contactor.When electric leakage or lack of water phenomenon occurring, electric leakage signal sample circuit or lack of water signal sampling circuit send actuating signal to the warning indicating circuit.After the warning indicating circuit obtains signal, disconnect the three phase mains main line that powers to the load by A.C. contactor.Warning indicating circuit indicating operating status and warning.
Wherein:
The electric leakage signal sample circuit comprises potentiometer RP1, capacitor C 2, rectification silicon bridge VD2, controllable silicon BT1 and instrument transformer TA1 form, and instrument transformer TA1 is installed on the three phase mains main line, the output of instrument transformer TA1 links to each other with the input of rectification silicon bridge VD2, the minus earth of the output of rectification silicon bridge VD2, the anodal control end that connects controllable silicon BT1 by potentiometer RP1 is connected with capacitor C 2 between positive pole and the negative pole, the minus earth of controllable silicon BT1, the anodal input that connects the warning indicating circuit.
The lack of water signal sampling circuit comprises resistance R 1, R2, triode BG1, BG2 and tie point A, B, C; Resistance R 1 one ends connect the base stage of triode BG1, and the other end is set to tie point B, and the collector electrode of triode BG1 connects the input of warning indicating circuit; Resistance R 2 one ends connect the base stage of triode BG2, and the other end is set to tie point C, the radio utmost point ground connection of triode BG2, and collector electrode connects the radio utmost point of triode BG1, and tie point A connects the positive pole of power circuit by contact J2.
The warning indicating circuit comprises relay K M1, KM2, contact J1-3, J2, LED 1-LED3, buzzer FM1 and button ST1, relay K M1 is in parallel with LED 1, then and contact J2 be connected in series between the positive pole of the collector electrode of triode BG1 and power circuit, buzzer FM1 and contact J1-3 are connected in series between the positive pole and ground of power circuit, be connected with LED 2 between the common port of buzzer FM1 and contact J1-3 and the tie point A, relay K M2 and LED 3 are connected in parallel between the positive pole and controllable silicon BT1 positive pole of power circuit, button ST1 is connected between the positive pole of the positive pole of power circuit and rectification silicon bridge VD2, contact J1-1, A.C. contactor KM3 and contact J1-2 are connected in series between the two-way of three phase mains main line according to this.
The utility model cooking apparatus comprehensive safety control alarm; by A.C. contactor and electric leakage signal sample circuit are set on the three phase mains main line; the lack of water signal sampling circuit that is connected with probe is set on firing equipment; and connect the warning indicating circuit, make when electric leakage or lack of water phenomenon take place cooking apparatus, can in time send alarm signal; and disconnect the three phase mains main line rapidly; play a protective role, prevent cooking apparatus electric leakage, dry combustion method, safe and reliable.Be mainly used on the equipment of electricity consumption vapour equipment such as electric decatize case, electric water boiler, rice steaming car steam-cooking cabinet or electric water, also comprise home-use shower heater, electric kettle, electric cup or electric rice cooker etc.
Description of drawings
Fig. 1, functional-block diagram of the present utility model.
The circuit theory diagrams of Fig. 2, the utility model embodiment.
Among the figure: KM1, KM2 relay J 1-3, J2 contact KM3 A.C. contactor IC1 pressurizer VD1, VD2 rectification silicon bridge LED1-LED3 light-emitting diode C1, C2 electric capacity BG1, BG2 triode R1, R2 resistance R P1 potentiometer ST1 button B1 transformer TA1 instrument transformer FM1 buzzer BT1 controllable silicon A, B, C tie point.
Embodiment
The utility model will be further described below in conjunction with the embodiment accompanying drawing.
As shown in Figure 1, A.C. contactor is arranged on the three phase mains main line, the input of power circuit connects the three phase mains main line, the input of power circuit connects the three phase mains main line, the output of power circuit connects the power input of electric leakage signal sample circuit, lack of water signal sampling circuit and warning indicating circuit respectively, the electric leakage signal sample circuit is connected the input of warning indicating circuit with the output of lack of water signal sampling circuit, the output of warning indicating circuit connects the control end of A.C. contactor.
As shown in Figure 2, power circuit comprises transformer B1, rectification silicon bridge VD1, capacitor C 1 and pressurizer IC1.The primary coil of transformer B1 connects the three phase mains main line, and the two ends of secondary coil link to each other with the input of rectification silicon bridge VD1.The output head anode of rectification silicon bridge VD1 links to each other minus earth with the input of pressurizer IC1.The output of pressurizer IC1 connects the positive pole of capacitor C 1.The minus earth of capacitor C 1.The output of integrated package of pressure-stabilizing IC1 provides operating voltage as the positive pole of power circuit.
The electric leakage signal sample circuit comprises potentiometer RP1, capacitor C 2, and rectification silicon bridge VD2, controllable silicon BT1 and instrument transformer TA1 form.Instrument transformer TA1 is installed on the three phase mains main line, and the output of instrument transformer TA1 links to each other with the input of rectification silicon bridge VD2.The minus earth of the output of rectification silicon bridge VD2, the anodal control end that connects controllable silicon BT1 by potentiometer RP1 is connected with capacitor C 2 between positive pole and the negative pole.The minus earth of controllable silicon BT1, the anodal input that connects the warning indicating circuit.
Reach the purpose of regulating the electric leakage rated current by regulator potentiometer RP1.
The lack of water signal sampling circuit comprises resistance R 1, R2, triode BG1, BG2 and tie point A, B, C, and resistance R 1 one ends connect the base stage of triode BG1, and the other end is set to tie point B, and the collector electrode of triode BG1 connects the input of warning indicating circuit; Resistance R 2 one ends connect the base stage of triode BG2, and the other end is set to tie point C, the radio utmost point ground connection of triode BG2, and collector electrode connects the radio utmost point of triode BG1; Tie point A connects the positive pole of power circuit by contact J2.
The warning indicating circuit comprises relay K M1, KM2, contact J1-3, J2, LED 1-LED3, buzzer FM1 and button ST1.Relay K M1 is in parallel with LED 1, then and contact J2 be connected in series between the positive pole of the collector electrode of triode BG1 and power circuit.Buzzer FM1 and contact J1-3 are connected in series between the positive pole and ground of power circuit.Be connected with LED 2 between the common port of buzzer FM1 and contact J1-3 and the tie point A.Relay K M2 and LED 3 are connected in parallel between the positive pole and controllable silicon BT1 positive pole of power circuit.Button ST1 is connected between the positive pole of the positive pole of power circuit and rectification silicon bridge VD2.Contact J1-1, A.C. contactor KM3 and contact J1-2 are connected in series between the two-way of three phase mains main line according to this.
Operation principle:
When cooking apparatus normally moves, relay K M2 not electric work, normally-closed contact J2 remains closed.Have voltage between the probe on tie point A, B, the C, make triode BG1, BG2 conducting, relay K M1 gets electric, and normally-closed contact J1-3 separates, and indicator light LED 1 is luminous, and buzzer FM1 does not ring.Normally opened contact J1-1, J1-2 remain closed, A.C. contactor KM3 work, and the three phase mains main line keeps path.
When the lack of water situation takes place when, do not contact water as any one in the probe on tie point A, B, the C, triode BG1, then not conducting of BG2, relay K M1 does not work, normally-closed contact J1-3 closure, relay K M2 does not work, normally-closed contact J2 closure, and indicator light LED2 is luminous, buzzer FM1 connects and sends audible alarm, normally opened contact J1-1, J1-2 separate, and A.C. contactor KM3 does not work, and disconnect the three phase mains main line.
When the electric leakage situation takes place when, when power input line any one or two short circuit ground connection, instrument transformer TA1 senses leakage current, through rectification silicon bridge VD2 rectification, capacitor C 2 filtering, trigger controllable silicon BT1 conducting after the potentiometer RP1 dividing potential drop, indicator light LED3 is luminous, and while relay K M2 gets electric, disconnects normally-closed contact J2, relay K M1 dead electricity, normally-closed contact J1-3 closure, buzzer FM1 connects and sends audible alarm, and normally opened contact J1-1, J1-2 separate, A.C. contactor KM3 does not work, and disconnects the three phase mains main line.
Claims (4)
1, a kind of cooking apparatus comprehensive safety control alarm, comprise A.C. contactor, power circuit and warning indicating circuit, it is characterized in that establishing electric leakage signal sample circuit and lack of water signal sampling circuit, A.C. contactor is arranged on the three phase mains main line, the input of power circuit connects the three phase mains main line, the output of power circuit connects the electric leakage signal sample circuit respectively, the power input of lack of water signal sampling circuit and warning indicating circuit, the electric leakage signal sample circuit is connected the input of warning indicating circuit with the output of lack of water signal sampling circuit, the output of warning indicating circuit connects the control end of A.C. contactor, and the lack of water signal sampling circuit is connected with probe.
2, cooking apparatus comprehensive safety control alarm according to claim 1, it is characterized in that the electric leakage signal sample circuit comprises potentiometer RP1, capacitor C 2, rectification silicon bridge VD2, controllable silicon BT1 and instrument transformer TA1 form, instrument transformer TA1 is installed on the three phase mains main line, the output of instrument transformer TA1 links to each other with the input of rectification silicon bridge VD2, the minus earth of the output of rectification silicon bridge VD2, the anodal control end that connects controllable silicon BT1 by potentiometer RP1, be connected with capacitor C 2 between positive pole and the negative pole, the minus earth of controllable silicon BT1, the anodal input that connects the warning indicating circuit.
3, cooking apparatus comprehensive safety control alarm according to claim 1 is characterized in that the lack of water signal sampling circuit comprises resistance R 1, R2, triode BG1, BG2 and tie point A, B, C; Resistance R 1 one ends connect the base stage of triode BG1, and the other end is set to tie point B, and the collector electrode of triode BG1 connects the input of warning indicating circuit; Resistance R 2 one ends connect the base stage of triode BG2, and the other end is set to tie point C, the radio utmost point ground connection of triode BG2, and collector electrode connects the radio utmost point of triode BG1, and tie point A connects the positive pole of power circuit by contact J2.
4, according to claim 1,2 or 3 described cooking apparatus comprehensive safety control alarms, the indicating circuit that it is characterized in that reporting to the police comprises relay K M1, KM2, contact J1-3, J2, LED 1-LED3, buzzer FM1 and button ST1, relay K M1 is in parallel with LED 1, then and contact J2 be connected in series between the positive pole of the collector electrode of triode BG1 and power circuit, buzzer FM1 and contact J1-3 are connected in series between the positive pole and ground of power circuit, be connected with LED 2 between the common port of buzzer FM1 and contact J1-3 and the tie point A, relay K M2 and LED 3 are connected in parallel between the positive pole and controllable silicon BT1 positive pole of power circuit, button ST1 is connected between the positive pole of the positive pole of power circuit and rectification silicon bridge VD2, contact J1-1, A.C. contactor KM3 and contact J1-2 are connected in series between the two-way of three phase mains main line according to this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010242 CN200950531Y (en) | 2006-09-30 | 2006-09-30 | Synthesized security control alarm for cooking facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010242 CN200950531Y (en) | 2006-09-30 | 2006-09-30 | Synthesized security control alarm for cooking facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950531Y true CN200950531Y (en) | 2007-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620010242 Expired - Fee Related CN200950531Y (en) | 2006-09-30 | 2006-09-30 | Synthesized security control alarm for cooking facilities |
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| Country | Link |
|---|---|
| CN (1) | CN200950531Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007356A (en) * | 2014-05-20 | 2014-08-27 | 珠海格力电器股份有限公司 | Test tool |
-
2006
- 2006-09-30 CN CN 200620010242 patent/CN200950531Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007356A (en) * | 2014-05-20 | 2014-08-27 | 珠海格力电器股份有限公司 | Test tool |
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| 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 |