CN2285609Y

CN2285609Y - Electronic auto-controlled pot

Info

Publication number: CN2285609Y
Application number: CN 96237484
Authority: CN
Inventors: 谢铭
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-17
Filing date: 1996-09-17
Publication date: 1998-07-08
Anticipated expiration: 2006-09-17

Abstract

The utility model relates to an electronic auto-controlled pot, particularly a safety gas range having accidental extinguishing protection which can optionally set remaining liquid quantity and heating time. The utility model comprises a vessel body (1), burners (2), electronic gravity sensors (4), and electronic controlling units which are matched with the electronic gravity sensors. Heating conditions of the burners are controlled by that the weight of the vessel body is changed into electric signal for being compared with the electric signal representing the remaining liquid quantity, which is previously stored, effectively, accurately, and optionally controlling the remaining liquid quantity of steam, decoction, and boil. The heating time can be set by time controllers of electronic control devices, satisfying timing heating requirements. The utility model can be used for families and units.

Description

A kind of electronics is controlled pot automatically

The utility model relates to a kind of electronics and controls pot automatically.

Electronics is in the past controlled pot automatically and adopt mechanical sensor in automatic ration control, and certainty of measurement is poor; And heating part adopts heating, the precedent that does not combine with the combustion gas tool.

The purpose of this utility model provides a kind of employing electronics gravity sensing device, can set automatic control combustion gas pot of surplus liquid measure and heat time heating time easily.

The purpose of this utility model is the (see figure 1) that realizes like this, and its structure is: pot body (1) is being supported by support member (3), under pot body burner (2) is set, and burner (2) is installed on the base, does not contact with pot body (1) with support member (3); Between support member (3) and base (6), more than one electronics gravity sensor (4) is set; The control end of electronic-controlled installation (5) connects air circuit breaker (7), and an end of the gas passage of air circuit breaker (7) connects burner (2), and the other end of the gas passage of air circuit breaker (7) connects fuel gas source (9).During work, earlier required surplus liquid measure is stored by electronic-controlled installation (5), the signal of telecommunication with representative pot body weight of being sent here by electronics gravity sensor (4) compares again, after electronic-controlled installation (5) is handled, the break-make of the fuel gas path of control air circuit breaker (7), thus reach the requirement that accurate quantification pot boils.In addition, can also pass through the time device in the electronic-controlled installation (5) simultaneously, be set required heat time heating time, arrive the path of setting of promptly closing combustion gas heat time heating time, reach the purpose that heats to regularly by air circuit breaker (7).

Above-mentioned electronics is controlled pot automatically, and its structure is a (see figure 1): another control end of electronic-controlled installation (5) is connected with temperature-sensitive element (8), and the working condition of observing and controlling burner (2) reaches to the requirement of accident extinguishing protection.

Above-mentioned electronics gravity sensor (4) can be a resistance strain sensor, its structure is, an one end protuberance of (see figure 2) upper arm (4-1) and an end of elastomer (4-2) are affixed, the one end protuberance of underarm (4-3) and the other end of elastomer (4-2) are affixed, the outer surface of elastomer (4-2) amplexiform at least one sheet resistance foil gauge (4-4) (can upper surface and or lower surface on amplexiform).To stew the weight of body when passing to the electronics gravity sensor when support member (3), and upper arm (4-1) acts on respectively on the elastomer (4-2) because of stressed with underarm (4-3), makes the resistance of resistance strain gage that corresponding variation takes place thereupon; Be connected into electric bridge with strain resistor or with measuring resistance, insert voltage-stabilized power supply, then can obtain a voltage signal that changes with pot body weight at the two ends, the left and right sides of electric bridge at the two ends up and down of electric bridge.

Electronic-controlled installation of the present utility model (5) can constitute like this: the input of (see figure 3) signal amplification unit (5-1) is connected with the output of electronics gravity sensor (4), the output of signal amplification unit (5-1) is connected with an input of comparator (5-3), another input of comparator (5-3) is connected with the output of weight data latch units (5-2), the output of the controlled end of weight data latch units (5-2) and comparator (5-3) and the input that adds thermal control units (5-4) are connected, an output that adds thermal control units (5-4) is connected with an end of thermocouple (8), another output that adds thermal control units (5-4) is connected with an end of the control coil of magnetic valve (7), and the other end of the control coil of magnetic valve (7) is connected with the other end of thermocouple (8).During work, earlier required surplus liquid measure is placed in pot body (1), will represents the voltage signal of required surplus liquid measure to pass to an input delivering to comparator (5-3) after signal amplification unit (5-1) amplifies by electronics gravity sensor (4); The output voltage that weight data latch units (5-2) will constantly raise is delivered to another input of comparator (5-3) and is compared with the voltage signal of the required surplus liquid measure of representative, when the output voltage of weight data latch units (5-2) is lower than the voltage of the required surplus liquid measure of representative, the level of comparator (5-3) output constantly raises continuous the continuing of the output voltage of weight data latch units (5-2), when the output voltage of weight data latch units (5-2) equals or during slightly greater than the voltage of the required surplus liquid measure of representative, comparator (5-3) is exported another level, the output voltage of the controlled end ream weight amount data storage units (5-2) by weight data latch units (5-2) stops continuous risings that continue, and by weight data latch units (5-2) output voltage is at this moment latched.Add an amount of water for this moment pot body, ignition combustion device (2) begins heating again; At this moment, the magnitude of voltage of the required surplus liquid measure of representative that the weight data latch units (5-2) that is higher than electronics gravity sensor (4) is delivered to representative pot body weight of comparator (5-3) after signal amplification unit (5-1) amplifies voltage signal latchs, comparator (5-3) output one level is connected the electric loop of the control coil of thermocouple (8) and magnetic valve (7) through two control ends that add thermal control units (5-4), the electric energy of the thermocouple after utilization is heated (8) is opened the heating source of the gas of the gas passage connection burner (2) of magnetic valve (7), keeps heating; Water boiling in pot, water evaporates reduces, during the magnitude of voltage of the required surplus liquid measure of representative that the weight data latch units (5-2) that equals the voltage signal that electronics gravity sensor (4) is delivered to representative pot body weight of comparator (5-3) or be lower than slightly latchs, comparator (5-3) is exported the electric loop that two control ends of another level through adding thermal control units (5-4) disconnect the control coil of thermocouple (8) and magnetic valve (7), close the source of the gas of burner (2), stop heating, thereby reach the requirement that accurate quantification pot boils.In addition, can also be simultaneously by adding the time controller (5-4-5) in the thermal control units (5-4), be set required heat time heating time, arrive the electric loop that promptly disconnect the control coil of thermocouple (8) and magnetic valve (7) heat time heating time of setting, close the source of the gas of burner (2), stop heating, reach the purpose that heats to regularly.In the use if any accident extinguishing, thermocouple (8) dead electricity, the source of the gas that magnetic valve (7) cuts out burner (2) reaches to purpose of safety.

Above-mentioned electronic-controlled installation, the subtracter (as Fig. 4) that its signal amplification unit (5-1) can be made up of integrated operational amplifier; Wherein, one end of resistor R 1 connects an output of electronics gravity sensor (4), the other end of resistor R 1 is connected with the inverting input of integrated operational amplifier IC1 and the end of R3, another output that one end of resistor R 2 connects electronics gravity sensor (4) connects, the other end of resistor R 2 is connected with the in-phase input end of integrated operational amplifier IC1 and an end of resistor R 4, the other end ground connection of resistor R 4, the other end of resistor R 3 is connected with the output of integrated operational amplifier IC1 and the inverting input of comparator (5-3).The advantage of this structure is amplification precision height simple in structure, reliability height.

Above-mentioned electronic-controlled installation, the structure of its weight data latch units (5-2) can be (as Fig. 4), the controlled end of controlled oscillation circuit (5-2-1) is connected with the output of comparator (5-3), the output of controlled oscillation circuit (5-2-1) is connected with the input end of clock of counting change-over circuit (5-2-2), and the output of counting change-over circuit (5-2-2) is connected with the in-phase input end of comparator (5-3).The advantage of this structure is simple to operate, the control accuracy height.

The weight data deposit receipt unit of above-mentioned electronic-controlled installation, its controlled oscillation circuit (5-2-1) can be that the multi-resonant oscillating circuit that (as Fig. 4) is made up of integration delay control circuit and NAND gate is formed; Wherein, the input end of clock of the output of the input of NAND gate N5 and NAND gate N7 and counting change-over circuit (5-2-2) is connected together, the input of the output of NAND gate N5 and NAND gate N6 and the end of capacitor C3 are connected, the end of the output of NAND gate N6 and R12 is connected, one end of the other end of resistor R 12 and resistor R 13 and the other end of capacitor C3 are connected, the other end of resistor R 13 is connected with the input of NAND gate N7, another input of NAND gate N7 is connected with the end of the c utmost point of NPN transistor BG3 and resistor R 14, one end of resistor R 11 is connected with the positive pole of power supply, the other end of resistor R 11 is connected with the positive pole of luminous two pipe LED2 and the positive pole of electrolytic capacitor C4, the negative pole of luminous two pipe LED2 is connected with the b utmost point of BG3, and the e utmost point of the negative pole of electrolytic capacitor C4 and BG3 is connected with the negative pole of power supply; The input of NAND gate N8 is connected with the output of comparator (5-3), and the output of NAND gate N8 is connected with the other end of resistor R 14.The effect of the multi-resonant oscillating circuit of being made up of NAND gate N5, N6, N7 and resistor R 12, R13 and capacitor C3 is the clock pulses that work is provided for counting change-over circuit (5-2-2); The effect of NAND gate N8 and resistor R 14 is output levels of locking oscillating circuit when comparator (5-3) output high level; The effect of the integration delay control circuit of being made up of NPN transistor BG3, resistor R 11, electrochemical capacitor C4 and LED 2 is that the output level of special oscillating circuit of time-delay regular hour continues to keep this locking after locked, and counting change-over circuit (5-2-2) output voltage is remained unchanged.The advantage of this structure be simple in structure, reliability is high.

The weight data latch units of above-mentioned electronic-controlled installation, its counting change-over circuit (5-2-2) can be that (as Fig. 4) is made up of binary string linage-counter and the trapezoidal D/A converter of R-2R; Wherein, the positive pole of electrolytic capacitor C5 is connected with positive source, the negative pole of electrolytic capacitor C5 is connected with an end of resistor R 15 and the reset terminal of binary string linage-counter IC4, the input end of clock of binary string linage-counter IC4 is connected with the output of NAND gate N7, the Q1 end of binary string linage-counter IC4 is connected with an end of resistor R 17, the Q2 end of binary string linage-counter IC4 is connected with an end of resistor R 18, the Q3 end of binary string linage-counter IC4 is connected with an end of resistor R 19, so analogize, the Q11 end of binary string linage-counter IC4 is connected with an end of resistor R 27, the Q12 end of binary string linage-counter IC4 is connected with an end of resistor R 28, the other end of resistor R 17 is connected with an end of resistor R 16 and an end of resistor R 29, the other end of resistor R 16 is connected with the negative pole of power supply, the other end of resistor R 29 is connected with the other end of resistor R 18 and an end of resistor R 30, the other end of resistor R 30 is connected with the other end of resistor R 19 and an end of resistor R 31, so analogize, the other end of resistor R 38 is connected with the other end of resistor R 27 and an end of resistor R 39, and the other end of resistor R 39 is connected with the other end of resistor R 28 and the in-phase input end of comparator (5-3).Make the data output end Q1-Q12 zero clearing of binary counter IC4 during the work beginning owing to the effect of electrochemical capacitor C5 and resistor R 15, controlled oscillation circuit (5-2-1) is whenever sent a work clock pulse here then, the binary numeral of the data output end Q1-Q12 of binary counter IC4 just adds 1, via R16, the conversion of the trapezoidal D/A converter of R/2R that R17 to R28 and R29 to R39 resistor are formed, make counting change-over circuit (5-2-2) output voltage raise step by step (adopting 12 binary string linage-counters to be divided into 4,000 multistage) with counting change-over circuit (5-2-2) output voltage, after clock pulses was locked, counting change-over circuit (5-2-2) output voltage remained unchanged.The advantage of this structure is weight data locking precision height, reliability height.

Above-mentioned electronic-controlled installation, its comparator (5-3) can be the voltage comparator that (as Fig. 4) is connected into by integrated operational amplifier, its inverting input is connected with the output of signal amplification unit (5-1), its in-phase input end is connected with the output of weight data latch units (5-2), and output is connected with the controlled end that adds thermal control units (5-4) and weight data latch units (5-2).Because the open loop amplification coefficient of integrated operational amplifier is very big, input signal changes slightly promptly can cause the counter-rotating of comparator output level.Therefore voltage ratio is than the precision height.

Above-mentioned electronic-controlled installation, its structure that adds thermal control units (5-4) can be (as Fig. 4), the input of emitter follower circuit (5-4-1) is connected with the output of comparator (5-3), the output of emitter follower circuit (5-4-1) is connected with the input that integration compares trigger (5-4-2), the integration relatively output of trigger (5-4-2) is connected with the input of integral form monostable circuit (5-4-3), the output of integral form monostable circuit (5-4-3) is connected with the input of drive circuit (5-4-4), and a control end of drive circuit (5-4-4) is connected with an end of time controller (5-4-5); Wherein, the b utmost point of NPN transistor BG1 is connected with the output of comparator (5-3), the c utmost point of NPN transistor BG1 is connected with the positive pole of power supply, the e utmost point of NPN transistor BG1 is connected with an end of an end of resistor R 5 and resistor R 6, the other end of resistor R 5 is connected with the positive pole of LED 1, the negative pole of LED 1 is connected with the negative pole of power supply, the other end of resistor R 6 is connected with the positive pole of electrolytic capacitor C1 and the inverting input of operational amplifier IC3, the negative pole of electrolytic capacitor C1 is connected with the negative pole of power supply, one end of resistor R 7 is connected with the positive pole of power supply, the other end of resistor R 7 is connected with an end of resistor R 8 and the in-phase input end of operational amplifier IC3, the other end of resistor R 8 is connected with the negative pole of power supply, the input of the input of the output of operational amplifier IC3 and NAND gate N1 and the output of NAND gate N3 and NAND gate N4 is connected, the input of the input of the output of NAND gate N1 and NAND gate N2 and NAND gate N3 is connected, the output of NAND gate N2 is connected with an end of resistor R 9, the other end of resistor R 9 is connected with the positive pole of electrolytic capacitor C2 and another input of NAND gate N3, the negative pole of electrolytic capacitor C2 is connected with the negative pole of power supply, the output of NAND gate N4 is connected with an end of resistor R 10, the other end of resistor R 10 is connected with the b utmost point of NPN transistor BG2, the e utmost point of transistor BG2 is connected with the negative pole of power supply, the c utmost point of transistor BG2 is connected with an end of the control coil of relay J D, the other end of the control coil of relay J D is connected with the positive pole of power supply, one end of the normally-closed contact of relay J D is connected with an end of thermocouple (8), the other end of the normally-closed contact of relay J D is connected with an end of time controller (5-4-5), the other end of time controller (5-4-5) is connected with an end of the control coil of magnetic valve (7), and the other end of the control coil of magnetic valve (7) is connected with the other end of thermocouple (8).The effect of the emitter follower circuit of being made up of NPN transistor BG1, resistor R 5 and LED 1 (5-4-1) is: the surplus liquid measure of the LED current pot body of 1 shinny expression (1) equals or is lower than required surplus liquid measure slightly when comparator (5-3) output high level, and the level of comparator (5-3) output is delivered to the relatively input of trigger (5-4-2) of integration.By integrated operational amplifier IC3, resistor R 6, R7, the integration that R8 and electrochemical capacitor C1 form the relatively effect of trigger (5-4-2) is, to be carried out integration by the voltage signal that emitter follower circuit (5-4-1) sends here disturbs to get rid of, when send here be normal high level the time (the surplus liquid measure of representing current pot body (1) equal or be lower than slightly required surplus liquid measure), low level of input output to integral form monostable circuit (5-4-3), triggering integral form monostable circuit (5-4-3) makes by NAND gate N1, N2, N3, N4, the integral form monostable circuit (5-4-3) that resistor R 9 and electrolytic capacitor C2 form makes relay J D adhesive a period of time to positive pulse that certain width is arranged of input output of drive circuit (5-4-4); Relay J D adhesive, normally-closed contact disconnects the electric loop of the control coil of magnetic valve (7), magnetic valve (7) dead electricity is closed, burner (2) stops heating, thermocouple (8) cooling dead electricity, relay JD discharges after a period of time, the normally-closed contact closure, magnetic valve (7) is still kept closed condition, thereby realizes the purpose that quantitative pot boils.In addition, can pass through time controller (5-4-5) and set the working time, after work reaches setting-up time, two contacts of time controller (5-4-5) disconnect, the control coil dead electricity of magnetic valve (7) is closed, and burner (2) stops heating, thereby realizes the regularly purpose of heating.If pre-accident extinguishing, thermocouple (8) cooling dead electricity, magnetic valve (7) cuts out, and burner (2) stops heating, reaches to the requirement of accident extinguishing protection.The advantage of this structure is reliability height, the electric energy of saving control device.

Electronic-controlled installation of the present utility model (5) can also constitute (see figure 5) like this: the input of signal amplification unit (5-1) is connected with the output of electronics gravity sensor (4), the output of signal amplification unit (5-1) is connected with the Data In-Line of microcontroller system (5-2), the data output end of microcontroller system (5-2) is connected with the input of driver element (5-3), a control end of driver element (5-3) is connected with an end of thermocouple (8), another control end of driver element (5-3) is connected with an end of the control coil of magnetic valve (7), and the other end of the control coil of magnetic valve (7) is connected with the other end of thermocouple (8).During work, can earlier required surplus liquid measure be placed in pot body (1), to represent the voltage signal of required surplus liquid measure to pass to the back Data In-Line by microcontroller system (5-2) of signal amplification unit (5-1) amplification by electronics gravity sensor (4) is input in the one-chip computer, convert voltage signal to numeral and be stored in (perhaps directly will represent the numeral of required surplus liquid measure to be input in the computer by the load button of microcontroller system (5-2) stores) in the computer by computer, add an amount of water for again pot body; Ignition combustion device (2) begins heating then, electronics gravity sensor this moment (4) is delivered to representative pot body weight of microcontroller system (5-2) after signal amplification unit (5-1) amplifies the signal of telecommunication is higher than the magnitude of voltage of the required surplus liquid measure of representative that microcontroller system (5-2) stores, after the one-chip computer computing, export a level is connected the control coil of thermocouple (8) and magnetic valve (7) through two control ends that add thermal control units (5-4) electric loop by DOL Data Output Line, the electric energy of the thermocouple after utilization is heated (8) is opened the heating source of the gas of the gas passage connection burner (2) of magnetic valve (7), keeps heating; Water boiling in pot, water evaporates reduces, when electronics gravity sensor (4) is delivered to the representative pot body weight in the microcontroller system (5-2) after signal amplification unit (5-1) amplifies voltage signal equals the magnitude of voltage of the required surplus liquid measure of representative that microcontroller system (5-2) stores, computer is exported the electric loop that two control ends of a level through adding thermal control units (5-4) disconnect the control coil of thermocouple (8) and magnetic valve (7) by DOL Data Output Line, close the source of the gas of burner (2), stop heating, thereby reach the requirement that accurate quantification pot boils.In addition, can also pass through the load button of microcontroller system (5-2) simultaneously and set required heat time heating time, utilize the clock in the computer to carry out timing, arrive the electric loop that promptly disconnect the control coil of thermocouple (8) and magnetic valve (7) heat time heating time of setting, close the source of the gas of burner (2), stop heating, reach the purpose that heats to regularly.In the use if any accident extinguishing, thermocouple (8) dead electricity, the source of the gas that magnetic valve (7) cuts out burner (2) reaches the purpose to accident extinguishing protection.

Because the utility model adopts the electronics gravity sensor, and electronic-controlled installation adopts weight data latch units or one-chip computer to set the magnitude of voltage of required surplus liquid measure, improved the setting accuracy of required surplus liquid measure greatly, thereby improved the control accuracy of surplus liquid measure greatly, and operation is more easy and convenient.In addition, owing to adopt the gas-cooker heating, more can reuse and select various kitchenware for use according to the requirement of cooking.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structure chart of electronics gravity sensor of the present utility model.

Fig. 3 is a kind of electronic-controlled installation block diagram of the present utility model.

Fig. 4 is a kind of concrete operation principle circuit diagram of a kind of electronic-controlled installation of the present utility model.

Fig. 5 is an another kind of electronic-controlled installation block diagram of the present utility model.

Fig. 6 is a kind of concrete operation principle circuit diagram of another kind of electronic-controlled installation of the present utility model.

Fig. 7 is the partial sectional view of a kind of concrete structure of the present utility model.

Embodiment 1:

As shown in Figure 7, pot body (1) is being supported by support member (3), and support member (3) does not contact with shell (11), under pot body (1) burner (2) is set, and burner (2) is installed on the base (6), does not contact with pot body (1) with support member (3); Shell (11) is installed on the base (6), ignition switch (10) is installed on shell (11) and electronic-controlled installation (5) (can be a device shown in Figure 4, its element and structure are seen this figure), the input of electronic-controlled installation (5) connects the output of electronics gravity sensor (4), a control end of electronic-controlled installation (5) is connected with an end of thermocouple (8), another control end of electronic-controlled installation (5) connects an end of the control coil of magnetic valve (7), the other end of the control coil of magnetic valve (7) is connected with the other end of thermocouple (8), one end of the gas passage of magnetic valve (7) connects burner (2), and the other end of the gas passage of magnetic valve (7) connects fuel gas source (9).Embodiment 2:

Electronic-controlled installation (5) can be a device shown in Figure 6, be made up of resistor R 1-R24, PNP transistor BG1-BG3, NPN transistor BG4-BG6, shift knob S1-S3, capacitor C1-C3, quartz crystal oscillator XTAL, diode D1, LED 1-LED2, charactron P1-P3, relay J D, integrated operational amplifier circuit IC1 and one-chip computer MPU, annexation is seen Fig. 6; Remainder is identical with embodiment 1.

Claims

1. an electronics is controlled pot automatically, and it comprises, pot body (1), and burner (2), support member (3), base (6), air circuit breaker (7) is characterized in that: between support member (3) and base (6) more than one electronics gravity sensor (4) is set; The input of electronic-controlled installation (5) connects the output of electronics gravity sensor (4), the control end of electronic-controlled installation (5) connects air circuit breaker (7), one end of the gas passage of air circuit breaker (7) connects burner (2), and the other end of the gas passage of air circuit breaker (7) connects fuel gas source (9).

2. electronics according to claim 1 is controlled pot automatically, it is characterized in that: another control end of electronic-controlled installation (5) is connected with temperature-sensitive element (8).

3. electronics according to claim 1 and 2 is controlled pot automatically, it is characterized in that: electronics gravity sensor (4) is a resistance strain sensor, structure is that an end of end protuberance of upper arm (4-1) and elastomer (4-2) is affixed, the one end protuberance of underarm (4-3) and the other end of elastomer (4-2) are affixed, amplexiform at least one sheet resistance foil gauge (4-4) at the outer surface of elastomer (4-2).

4. electronics according to claim 1 and 2 is controlled pot automatically, it is characterized in that: its air circuit breaker (7) is a magnetic valve, its temperature-sensitive element (8) is a thermocouple, the structure of electronic-controlled installation (5) is, the input of signal amplification unit (5-1) is connected with the output of electronics gravity sensor (4), the output of signal amplification unit (5-1) is connected with an input of comparator (5-3), another input of comparator (5-3) is connected with the output of weight data latch units (5-2), the output of the controlled end of weight data latch units (5-2) and comparator (5-3) and the input that adds thermal control units (5-4) are connected, a control end that adds thermal control units (5-4) is connected with an end of thermocouple (8), another control end that adds thermal control units (5-4) is connected with an end of the control coil of magnetic valve (7), and the other end of the control coil of magnetic valve (7) is connected with the other end of thermocouple (8).

5. electronics according to claim 4 is controlled pot automatically, it is characterized in that: the subtracter that signal amplification unit (5-1) is made up of integrated operational amplifier; Wherein, one end of resistor R 1 connects an output of electronics gravity sensor (4), the other end of resistor R 1 is connected with the inverting input of integrated operational amplifier IC1 and the end of R3, another output that one end of resistor R 2 connects electronics gravity sensor (4) connects, the other end of resistor R 2 is connected with the in-phase input end of integrated operational amplifier IC1 and an end of resistor R 4, the other end ground connection of resistor R 4, the other end of resistor R 3 is connected with the output of integrated operational amplifier IC1 and the inverting input of comparator (5-3).

6. electronics according to claim 4 is controlled pot automatically, it is characterized in that: the structure of weight data latch units (5-2) is, the controlled end of controlled oscillation circuit (5-2-1) is connected with the output of comparator (5-3), the output of controlled oscillation circuit (5-2-1) is connected with the input end of clock of counting change-over circuit (5-2-2), and the output of counting change-over circuit (5-2-2) is connected with the in-phase input end of comparator (5-3).

7. electronics according to claim 6 is controlled pot automatically, it is characterized in that: the multi-resonant oscillating circuit that controlled oscillation circuit (5-2-1) is made up of integration delay control circuit and NAND gate is formed; Wherein, the input end of clock of the output of the input of NAND gate N5 and NAND gate N7 and counting change-over circuit (5-2-2) is connected together, the input of the output of NAND gate N5 and NAND gate N6 and the end of capacitor C3 are connected, the end of the output of NAND gate N6 and R12 is connected, one end of the other end of resistor R 12 and resistor R 13 and the other end of capacitor C3 are connected, the input of the other end of resistor R 13 and NAND gate N7 is connected, another input of NAND gate N7 is connected with the end of the c utmost point of NPN transistor BG3 and resistor R 14, one end of resistor R 11 is connected with the positive pole of power supply, the other end of resistor R 11 is connected with the positive pole of luminous two pipe LED2 and the positive pole of electrolytic capacitor C4, the negative pole of luminous two pipe LED2 is connected with the b utmost point of BG3, and the e utmost point of the negative pole of electrolytic capacitor C4 and BG3 is connected with the negative pole of power supply; The input of NAND gate N8 is connected with the output of comparator (5-3), and the output of NAND gate N8 is connected with the other end of resistor R 14.

8. electronics according to claim 6 is controlled pot automatically, it is characterized in that: counting change-over circuit (5-2-2) is made up of binary string linage-counter and the trapezoidal D/A converter of R-2R; Wherein, the positive pole of electrolytic capacitor C5 is connected with positive source, the negative pole of electrolytic capacitor C5 is connected with an end of resistor R 15 and the reset terminal of binary string linage-counter IC4, the input end of clock of binary string linage-counter IC4 is connected with the output of NAND gate N7, the Q1 end of binary string linage-counter IC4 is connected with an end of resistor R 17, the Q2 end of binary string linage-counter IC4 is connected with an end of resistor R 18, the Q3 end of binary string linage-counter IC4 is connected with an end of resistor R 19, so analogize, the Q11 end of binary string linage-counter IC4 is connected with an end of resistor R 27, the Q12 end of binary string linage-counter IC4 is connected with an end of resistor R 28, the other end of resistor R 17 is connected with an end of resistor R 16 and an end of resistor R 29, the other end of resistor R 16 is connected with the negative pole of power supply, the other end of resistor R 29 is connected with the other end of resistor R 18 and an end of resistor R 30, the other end of resistor R 30 is connected with the other end of resistor R 19 and an end of resistor R 31, so analogize, the other end of resistor R 38 is connected with the other end of resistor R 27 and an end of resistor R 39, and the other end of resistor R 39 is connected with the other end of resistor R 28 and the in-phase input end of comparator (5-3).

9. electronics according to claim 4 is controlled pot automatically and be it is characterized in that: comparator (5-3) is the voltage comparator that is connected into by integrated operational amplifier, its inverting input is connected with the output of signal amplification unit (5-1), its in-phase input end is connected with the output of weight data latch units (5-2), and its output is connected with the controlled end that adds thermal control units (5-4) and weight data latch units (5-2).

10. electronics according to claim 4 is controlled pot automatically, it is characterized in that: the structure that adds thermal control units (5-4) is, the input of emitter follower circuit (5-4-1) is connected with the output of comparator (5-3), the output of emitter follower circuit (5-4-1) is connected with the input that integration compares trigger (5-4-2), the integration relatively output of trigger (5-4-2) is connected with the input of integral form monostable circuit (5-4-3), the output of integral form monostable circuit (5-4-3) is connected with the input of drive circuit (5-4-4), and a control end of drive circuit (5-4-4) is connected with an end of time controller (5-4-5); Wherein, the b utmost point of NPN transistor BG1 is connected with the output of comparator (5-3), the c utmost point of NPN transistor BG1 is connected with the positive pole of power supply, the e utmost point of NPN transistor BG1 is connected with an end of an end of resistor R 5 and resistor R 6, the other end of resistor R 5 is connected with the positive pole of LED 1, the negative pole of LED 1 is connected with the negative pole of power supply, the other end of resistor R 6 is connected with the positive pole of electrolytic capacitor C1 and the inverting input of operational amplifier IC3, the negative pole of electrolytic capacitor C1 is connected with the negative pole of power supply, one end of resistor R 7 is connected with the positive pole of power supply, the other end of resistor R 7 is connected with an end of resistor R 8 and the in-phase input end of operational amplifier IC3, the other end of resistor R 8 is connected with the negative pole of power supply, the input of the input of the output of operational amplifier IC3 and NAND gate N1 and the output of NAND gate N3 and NAND gate N4 is connected, the input of the input of the output of NAND gate N1 and NAND gate N2 and NAND gate N3 is connected, the output of NAND gate N2 is connected with an end of resistor R 9, the other end of resistor R 9 is connected with the positive pole of electrolytic capacitor C2 and another input of NAND gate N3, the negative pole of electrolytic capacitor C2 is connected with the negative pole of power supply, the output of NAND gate N4 is connected with an end of resistor R 10, the other end of resistor R 10 is connected with the b utmost point of NPN transistor BG2, the e utmost point of transistor BG2 is connected with the negative pole of power supply, the c utmost point of transistor BG2 is connected with an end of the control coil of relay J D, the other end of the control coil of relay J D is connected with the positive pole of power supply, one end of the normally-closed contact of relay J D is connected with an end of thermocouple (8), the other end of the normally-closed contact of relay J D is connected with an end of time controller (5-4-5), the other end of time controller (5-4-5) is connected with an end of the control coil of magnetic valve (7), and the other end of the control coil of magnetic valve (7) is connected with the other end of thermocouple (8).

11. electronics according to claim 1 and 2 is controlled pot automatically, it is characterized in that: its air circuit breaker (7) is a magnetic valve, its temperature-sensitive element (8) is a thermocouple, the structure of electronic-controlled installation (5) is: the input of signal amplification unit (5-1) is connected with the output of electronics gravity sensor (4), the output of signal amplification unit (5-1) is connected with the Data In-Line of microcontroller system (5-2), the data output end of microcontroller system (5-2) is connected with the input of driver element (5-3), a control end of driver element (5-3) is connected with an end of thermocouple (8), another control end of driver element (5-3) is connected with an end of the control coil of magnetic valve (7), and the other end of the control coil of magnetic valve (7) is connected with the other end of thermocouple (8).