CN208999849U

CN208999849U - A kind of novel oven temperature controller

Info

Publication number: CN208999849U
Application number: CN201821789837.9U
Authority: CN
Inventors: 梁婉晴; 谭观胜
Original assignee: Zhongshan Dongfeng Town Berlington Electronics And Electrical Factory
Current assignee: Zhongshan Dongfeng Town Berlington Electronics And Electrical Factory
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2019-06-18
Anticipated expiration: 2028-10-31

Abstract

The utility model discloses a kind of novel oven temperature controllers, including shell and circuit board, circuit board to be placed in shell, and shell is equipped with temperature display, setting value display screen, function key, addend key, subtrahend key；Circuit board is equipped with microcontroller, power circuit, display control circuit, temperature measuring circuit, temperature-time control circuit, button inputting circuits；Power supply is circuit board power supply by power circuit；Display control circuit one end connection temperature display and setting value display screen, the other end are connected with microcontroller；Temperature measuring circuit, temperature-time control circuit are connected with microcontroller respectively；Button inputting circuits one end is connected with microcontroller, and the other end is connected with function key, addend key, subtrahend key.The utility model simplifies circuit connection, saves electronic box space；Directly substitute more temperature controllers and time relay work, settable multistage temperature control system and continuous work；The operation of equipment is simplified, equipment quality is improved, saves cost.

Description

A kind of novel oven temperature controller

Technical field

The utility model relates to field of intelligent control technology, in particular to a kind of novel oven temperature controller.

Background technique

In existing market, traditional multi-spots temperature control oven is using multiple temperature controllers and multiple time relays Equal accessories form multiple spot different temperatures control circuit, and this circuit occupancy electronic box space is big, and line is complicated, troublesome in poeration.Excessively Temperature controller and the time relay bring the subsequent failure rate used, later maintenance cost is high, difficulty is big, is unfavorable for saving Production cost.

Generally there are two types of modes for oven cooking cycle, and conventional oven is that product continuously toasts the regular hour at a certain temperature With regard to completing；Another baking mode is exactly that product first toasts a period of time under low-temperature condition, is then warming up to high temperature dot baking again Roasting a period of time completes again, and the requirement to product is higher, and baking temperature point is more, if product need to 100 DEG C roasting 30 minutes, It bakes to bake within 20 minutes, 200 DEG C 40 minutes, 250 DEG C for 150 DEG C and bake 100 minutes, up to 4 temperature controls to be conventionally then installed Device processed and 4 time controllers need personnel to go temperature regulating range and time before the deadline, to reach job requirement. Once going wrong, inconvenience is brought to user's maintenance.

Utility model content

In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art, it is simple to provide a kind of structure, operation Practical novel oven temperature controller.

The utility model solve its technical problem be using technical solution: novel oven temperature controller, including shell And circuit board, the circuit board are placed in the shell, shell is provided with temperature display, setting value display screen, function key, adds Number key, subtrahend key；Circuit board is provided with microcontroller, power circuit, display control circuit, temperature measuring circuit, temperature-time Control circuit, button inputting circuits；Described display control circuit one end connects the temperature display and the setting value is shown Screen, the other end are connected with the microcontroller；The temperature measuring circuit, the temperature-time control circuit respectively with it is described Microcontroller is connected；Button inputting circuits one end is connected with the microcontroller, the other end and the function key, addend Key, subtrahend key are connected.

Further, for the utility model is better achieved, especially using following setting structures: the power circuit includes First resistor, the second capacitor, the 6th capacitor, the 8th capacitor, the 9th capacitor, the 11st capacitor, the 16th capacitor, the three or two pole Pipe, the 4th diode, the first D5 diode, the 2nd D5 diode, the 3rd D5 diode, transformer, electric pressure converter；

Power supply is by the filter circuit that is made of the first resistor and the 9th capacitor parallel connection, with the transformer Input terminal connection, the output end of the transformer connect the anode of the third diode and the anode of the 6th diode, The cathode of the third diode connects the cathode of the 6th diode, and the cathode of the third diode is also connected with the 16th The anode of capacitor, the cathode ground connection of the 16th capacitor, the cathode of third diode are also used as 12V voltage output end；4th The anode of the cathode connection third diode of diode, the plus earth of the 4th diode, the anode of the 6th diode is also Connect the cathode of the first D5 diode, the plus earth of the first D5 diode；The output end of the transformer is grounded, and is also connected The anode of the 2nd D5 diode, the anode of the 3rd D5 diode are connect, the cathode of the 2nd D5 diode connects the 3rd D5 diode Cathode, the cathode of the 2nd D5 diode are also connected with the one end for the parallel circuit being made of the second capacitor, the 11st capacitor；Voltage turns The one end for the parallel circuit that the input terminal connection of parallel operation is made of the second capacitor, the 11st capacitor, output end connection is by the 8th electricity Hold, the one end for the parallel circuit that the 6th capacitor is constituted, ground terminal ground connection, ground terminal is also connected with by the second capacitor, the 11st capacitor The other end of the parallel circuit of composition；The one end for the parallel circuit being made of the 8th capacitor, the 6th capacitor is as 5V voltage output End, the other end ground connection for the parallel circuit being made of the 8th capacitor, the 6th capacitor.

Further, for the utility model is better achieved, following setting structures: the display control circuit are especially used Including the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance, the 21st resistance, the 6th Triode, the 7th triode, the 8th triode, the 9th triode, the tenth triode, the 11st triode；

The microcontroller connects the 6th transistor base by the 16th resistance, passes through the 17th resistance connection the eight or three Pole pipe base stage, connects the 9th transistor base by the 18th resistance, connects the tenth transistor base by the 19th resistance, leads to It crosses the 20th resistance and connects the 11st transistor base, the 7th transistor base is connected by the 21st resistance；Six or three pole Pipe, the 7th triode, the 8th triode, the 9th triode, the tenth triode, the 11st triode collector be grounded, send out Emitter-base bandgap grading connects the temperature display and the setting value display screen.

Further, for the utility model is better achieved, following setting structures: the temperature measuring circuit are especially used Including filter circuit, switching gate device, in-phase amplifier；Filter circuit input terminal is as temperature measuring circuit input terminal, filtering Circuit output end connection switch gate input terminal, switching gate device output end connect in-phase amplifier input terminal, same to Xiang Fang great Device output end connects microcontroller as temperature measuring circuit output end.

Further, for the utility model is better achieved, especially use following setting structures: the shell is also additionally provided with Output indicator, the first alarm lamp, the second alarm lamp, the setting value display screen include numerical value display area and baking Roasting clocking information display area.

Further, for the utility model is better achieved, following setting structures: the button inputting circuits are especially used Including the 7th diode, the 9th diode, the tenth diode, interface chip, charactron, the second connector, the 8th connector；

Function key, addend key, subtrahend key one end connect the No.1 interface of the second connector, and the other end passes through the seven or two respectively Pole pipe, the 9th diode, the tenth diode are separately connected No. four interfaces, No. six interfaces, No. ten interfaces of the second connector；Interface Chip one end connects the second connector, and the other end connects the second connector and charactron one end, the other end connection of charactron the Two connectors；8th connector connects the second connector, and is grounded；Output indicator, the first alarm lamp, the second alarm Indicator light one end connects 5V voltage output end, while connecting the 8th connector, and the output indicator other end connects the 8th connector, The other end of first alarm lamp connects the second connector, and the other end of the second alarm lamp connects the second connector.

Further, for the utility model is better achieved, following setting structures are especially used: the temperature-time control Circuit includes the first triode, the second triode, first resistor, second resistance, the 4th connector, the 5th connector, the 20th One diode, the first relay；

Output end of first relay output end as temperature-time control circuit；First relay one end connection the 20th The anode of one diode, the other end connect the 21st diode cathode；21st diode cathode connects 12V voltage output End, the collector of anode the first triode of connection；The emitter of first triode connects zero curve, and the base stage of the first triode passes through the One resistance connects the collector of the second triode, and the collector of the second triode also connects 5V voltage output by second resistance End, the emitter ground connection of the second triode, the base stage of the second triode connect the 4th connector, the 4th connector ground and zero Line, and also connect 5V voltage output end, 12V voltage output end and the 5th connector, the 5th connector ground, and connect 5V electricity Press output end.

Further, for the utility model is better achieved, following setting structures: first police instruction are especially used The output connection circuit of lamp includes third triode, the 4th triode, the 29th resistance, the 30th resistance, the 31st electricity Resistance, the 34th resistance, third diode, third relay；

Third relay output end connects circuit output end as the output of the first alarm lamp of connection；Third relay One end connects the anode of third diode, and the other end connects third diode cathode；It is defeated that third diode cathode connects 12V voltage Outlet, the collector of anode connection third transistor；The emitter of third transistor connects zero curve, and the base stage of third transistor passes through 31st resistance connects the collector of the 4th triode；The collector of 4th triode connects 5V electricity by the 34th resistance Output end is pressed, the base stage of the emitter ground connection of the 4th triode, the 4th triode connects microcontroller by the 30th resistance, the The base stage of four triodes is connected with 5V voltage output end by the 29th resistance by the 30th resistance.

Further, for the utility model is better achieved, following setting structures: second police instruction are especially used The output connection circuit of lamp includes the 5th triode, the 6th triode, the 32nd resistance, the 33rd resistance, the 42nd Resistance, the 43rd resistance, the 4th diode, the 4th relay；

4th relay output end connects circuit output end as the output of the second alarm lamp of connection；4th relay One end connects the anode of the 4th diode, and the other end connects the 4th diode cathode；It is defeated that 4th diode cathode connects 12V voltage Outlet, the collector of anode the 5th triode of connection；The emitter of 5th triode connects zero curve, and the base stage of the 5th triode passes through 33rd resistance connects the collector of the 6th triode；The collector of 6th triode connects 5V electricity by the 43rd resistance Output end, the emitter ground connection of the 6th triode are pressed, the base stage of the 6th triode connects microcontroller by the 32nd resistance, The base stage of 6th triode is connected with 5V voltage output end by the 42nd resistance by the 32nd resistance.

The beneficial effects of the utility model are: novel oven is made of with temperature controller shell and circuit board, shell setting There are temperature display, setting value display screen, function key, addend key, subtrahend key, output indicator, the first alarm lamp, second Alarm lamp is additionally provided with baking clocking information display area on setting value display screen；Circuit board is provided with microcontroller, electricity Source circuit, display control circuit, temperature measuring circuit, temperature-time control circuit, button inputting circuits；The company of the utility model Line greatly reduces, and simplifies electronic box electric wiring, saves electronic box installation control, so that structure simplifies, clear function, operation readiness. Built-in multistage temperature value and period, instrument is allowed to heat according to preset temperature, reaches target temperature automatic trigger internal clocking Device is jumped to next section automatically and pre-sets temperature and continue to heat, run in a manner of class again after timing, until terminating.One Temperature controller substitutes more temperature controllers and the time relay.The utility model is directly instead of more temperature controllers and time Relay simplifies the complicated line between equipment, reduces manual operation, automatically runs by program, improves equipment entirety matter Amount simplifies equipment later maintenance, saves equipment cost.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the power circuit principle schematic diagram of the utility model；

Fig. 3 is the button inputting circuits schematic illustration of the utility model；

Fig. 4 is the temperature-time control circuit schematic illustration of the utility model；

Fig. 5 is that the output of second alarm lamp of the utility model connects circuit theory schematic diagram；

Fig. 6 is the partial circuit schematic illustration of the utility model；

In figure, 1- shell, 2- circuit board, 11- temperature display, 12- setting value display screen, 13- output indicator, 14- First alarm lamp, the second alarm lamp of 15-, 16- baking clocking information display area, 17- function key, 18- addend key, 19- subtrahend key, 21- microcontroller, 22- power circuit, 23- display control circuit, 24- temperature measuring circuit, 25- temperature-time Control circuit, 26- button inputting circuits.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than comprehensively Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Obtained all other embodiment is put, the range that the utility model is protected is belonged to.

The novel oven temperature controller of one kind described in the utility model is made of shell (1) and circuit board (2), is set on shell It is equipped with temperature display (11), setting value display screen (12), function key (17), addend key (18), subtrahend key (19), output instruction Lamp (13), the first alarm lamp (14), the second alarm lamp (15), baking clocking information display area (16)；Circuit board (2) microcontroller (21), power circuit (22), display control circuit (23), temperature measuring circuit (24), temperature-time are provided with Control circuit (25), button inputting circuits (26).

Power supply is the circuit board (1) power supply by power circuit (22)；Display control circuit (23) one end connection The temperature display (11) and the setting value display screen (12), the other end are connected with the microcontroller (21)；It is described Temperature measuring circuit (24), the temperature-time control circuit (25) are connected with the microcontroller (21) respectively；Key is defeated Enter circuit (26) one end to be connected with the microcontroller (21), the other end and the function key (17), addend key (18), subtrahend Key (19) is connected.It should be noted that the shell (1) can be, but not limited to as square structure, color of shell is not limited；Institute Stating circuit board (2) includes route and drawing, dielectric layer, hole, anti-solder ink, silk-screen etc., can be subtracted significantly using printed circuit board Few mistake being routed and assemble.

Shown in Fig. 2, power circuit (22) schematic illustration of the utility model, the power circuit (22) includes the first electricity Resistance, the second capacitor, the 6th capacitor, the 8th capacitor, the 9th capacitor, the 11st capacitor, the 16th capacitor, third diode, the 4th Diode, the first D5 diode, the 2nd D5 diode, the 3rd D5 diode, transformer, electric pressure converter；

The 12V voltage output end and 5V voltage output end that power circuit (22) generates are to be suitble to electricity used in circuit board inside It is excessive and damage component not will lead to voltage for the component of road plate.Power circuit (22) is divided using transformer to fit It closes used in the electric appliance, in favor of the transmission of power, meets user demand, simple power circuit also simplifies route, reaches work With.

Shown in Fig. 3, the button inputting circuits (26) of the utility model, the button inputting circuits (26) include the seven or two pole Pipe, the 9th diode, the tenth diode, interface chip, charactron, the second connector, the 8th connector；

Function key (17), addend key (18), subtrahend key (19) one end connect the No.1 interface of the second connector, the other end point Not by the 7th diode, the 9th diode, the tenth diode be separately connected No. four interfaces of the second connector, No. six interfaces, No. ten interfaces；Interface chip one end connects the second connector, and the other end connects the second connector and charactron one end, charactron The other end connects the second connector；8th connector connects the second connector, and is grounded；Output indicator, the first alarm refer to Show lamp, second alarm lamp one end connection 5V voltage output end, while connecting the 8th connector, the output indicator other end connects The 8th connector is connect, the other end of the first alarm lamp connects the second connector, the other end connection of the second alarm lamp Second connector.

The variation of level is transferred to microcontroller (21), microcontroller by the input of key by button inputting circuits (26) Device (21) carries out analog-to-digital conversion analytical analysis, and then transmission is to control charactron and indicator light.With few component and electricity Line is attached, while reaching key-press input set-up function, optimizes circuit diagram.

Shown in Fig. 4, temperature-time control circuit (25) schematic illustration of the utility model, the temperature-time control electricity Road (25) includes the first triode, the second triode, first resistor, second resistance, the 4th connector, the 5th connector, second 11 diodes, the first relay；

This schematic diagram is the driving circuit that microcontroller (21) controls temperature-time, wherein using relay, relay Device is the automatic switch element with isolation features, to circuit play the role of be control and protection, effectively economize on resources； It can replace regular industrial relay, increase the efficiency of work, modular structure, user can be provided for user Just；Switch has the characteristics that illuminate and by that can bring more comfortable usage experience for user；It can be realized automation Function.Has many advantages, such as movement fast, the operation is stable, long service life, small in size.Be widely used in electric power protection, automation, In the devices such as movement, remote control, measurement and communication.

Fig. 5 be the utility model the second alarm lamp (15) output connect circuit theory schematic diagram, described second The output connection circuit of alarm lamp (15) includes the 5th triode, the 6th triode, the 32nd resistance, the 33rd electricity Resistance, the 42nd resistance, the 43rd resistance, the 4th diode, the 4th relay；

4th relay output end connects circuit output end as the output of connection the second alarm lamp (15)；4th after Electric appliance one end connects the anode of the 4th diode, and the other end connects the 4th diode cathode；4th diode cathode connects 12V electricity Press output end, the collector of anode the 5th triode of connection；The emitter of 5th triode connects zero curve, the base stage of the 5th triode The collector of the 6th triode is connected by the 33rd resistance；The collector of 6th triode is connected by the 43rd resistance 5V voltage output end, the emitter ground connection of the 6th triode, the base stage of the 6th triode connect micro-control by the 32nd resistance The base stage of device (21) processed, the 6th triode is connected with 5V voltage output end by the 42nd resistance by the 32nd resistance It connects.

Fig. 6 is the partial circuit schematic illustration of the utility model, is indicated temperature measuring circuit (24)；Temperature display (11) and the connection circuit of setting value display screen (12), i.e. display control circuit (23)；The output of first alarm lamp (14) Connect circuit.

The temperature measuring circuit (24) includes filter circuit, switching gate device, in-phase amplifier；Filter circuit input terminal As temperature measuring circuit input terminal, filter circuit output end connection switch gate input terminal, switching gate device output end connect In-phase amplifier input terminal is connect, in-phase amplifier output end connects microcontroller as temperature measuring circuit output end (21)。

The display control circuit (23) include the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, 20th resistance, the 21st resistance, the 6th triode, the 7th triode, the 8th triode, the 9th triode, the 13rd pole Pipe, the 11st triode.

The microcontroller (21) connects the 6th transistor base by the 16th resistance, passes through the 17th resistance connection the Eight transistor bases, connect the 9th transistor base by the 18th resistance, connect the tenth triode base by the 19th resistance Pole, connects the 11st transistor base by the 20th resistance, connects the 7th transistor base by the 21st resistance；6th Triode, the 7th triode, the 8th triode, the 9th triode, the tenth triode, the 11st triode collector connect Ground, emitter connect the temperature display and the setting value display screen.

Setting value display screen (12) can not only show digital information, can also show baking clocking information, when this is practical The novel timing program for enabling microcontroller (21) in use, microcontroller (21) can pass through display control circuit (23), it is always on baking clocking information display area (16), until timing terminates and extinguishes.

The output connection circuit of first alarm lamp (14) includes third triode, the 4th triode, the 20th Nine resistance, the 30th resistance, the 31st resistance, the 34th resistance, third diode, third relay；

Third relay output end connects circuit output end as the output of connection the first alarm lamp (14)；Third after Electric appliance one end connects the anode of third diode, and the other end connects third diode cathode；Third diode cathode connects 12V electricity Press output end, the collector of anode connection third transistor；The emitter of third transistor connects zero curve, the base stage of third transistor The collector of the 4th triode is connected by the 31st resistance；The collector of 4th triode is connected by the 34th resistance 5V voltage output end, the emitter ground connection of the 4th triode, the base stage of the 4th triode connect microcontroller by the 30th resistance The base stage of device (21), the 4th triode is connected with 5V voltage output end by the 29th resistance by the 30th resistance.

The working principle of the utility model is:

Microcontroller (21) receive temperature measuring circuit (24) temperature signal, further according to pass through button inputting circuits (26) Obtained input signal is handled, so that display control circuit (23) and temperature-time control circuit (25) be driven to carry out work Make.By these circuits, settable multistage temperature value and period, instrument is allowed to heat according to preset temperature, reach target temperature Automatic trigger internal timing device is spent, next section is jumped to automatically again after timing and pre-sets temperature and continue to heat, in a manner of class Operation, until terminating.One temperature controller substitutes more temperature controllers and the time relay.

It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments Unspecified content may refer to the same or similar content in other embodiments.

It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present application, without It can be interpreted as indication or suggestion relative importance.Although embodiments herein has been shown and described above, it is possible to understand that , above-described embodiment is exemplary, and should not be understood as the limitation to the application, those skilled in the art are in this Shen Please in the range of can make changes, modifications, alterations, and variations to the above described embodiments.

The utility model changes the electronic box space of equipment, eliminates the wiring of appliance chamber complexity.One equipment is electrically matched Part is more, and the failure rate of generation is also bigger, and complicated wiring is but also later maintenance difficulty increases.It is greatly reduced simultaneously The purchase cost of equipment.The operability for greatly simplifying equipment, the use of equipment can quickly be grasped by making unskilled labor per capita.

The operating method of the utility model is:

Correct wiring first powers on booting；Display screen shows current measurement temperature value and first segment temperature control value, short-press function Key once, into setting first segment temperature control value and clocking value；Again short-press function key once, into setting second segment temperature control value and meter Duration sets gradually the engineering section of product completion, finally successively indicates determining by function key.

If the feature operation for enabling setting parameter is correct wiring, booting is powered on；Enter on-site parameters within long-pressing function key 3 seconds Group, and enter the first alarming value and window is set；By function key 5 seconds, window is set into the second alarming value；By function key 5 seconds, into Enter sensor amendment setting window；By function key 5 seconds, into P ratio setting window；By function key 5 seconds, into I integral parameter Window is set；By function key 5 seconds, window is set into D differential；By function key 5 seconds, window is set into the T output period；By function Can be key 5 seconds, into AT Self-tuning System, window is set；By function key 5 seconds, window is set into LCK software locks；Being provided with then can be by Function key once, by function key 5 seconds to reset.

Claims

1. a kind of novel oven temperature controller, it is characterised in that: including shell and circuit board, the circuit board is placed in the shell In vivo, shell is provided with temperature display, setting value display screen, function key, addend key, subtrahend key；Circuit board is provided with micro-control Device processed, power circuit, display control circuit, temperature measuring circuit, temperature-time control circuit, button inputting circuits；It is described aobvious Show that control circuit one end connects the temperature display and the setting value display screen, the other end are connected with the microcontroller It connects；The temperature measuring circuit, the temperature-time control circuit are connected with the microcontroller respectively；Button inputting circuits One end is connected with the microcontroller, and the other end is connected with the function key, addend key, subtrahend key.

2. novel oven temperature controller according to claim 1, it is characterised in that: the power circuit includes the first electricity Resistance, the second capacitor, the 6th capacitor, the 8th capacitor, the 9th capacitor, the 11st capacitor, the 16th capacitor, third diode, the 4th Diode, the first D5 diode, the 2nd D5 diode, the 3rd D5 diode, transformer, electric pressure converter；

Input of the power supply by the filter circuit that is made of the first resistor and the 9th capacitor parallel connection, with the transformer End connection, the output end of the transformer connect the anode of the third diode and the anode of the 6th diode, the third The cathode of diode connects the cathode of the 6th diode, and the cathode of the third diode is also connected with the anode of the 16th capacitor, The cathode of 16th capacitor is grounded, and the cathode of third diode is also used as 12V voltage output end；The cathode of 4th diode The anode of third diode is connected, the anode of the plus earth of the 4th diode, the 6th diode is also connected with the first D5 diode Cathode, the plus earth of the first D5 diode；The output end of the transformer is grounded, and is also connected with the 2nd D5 diode The anode of anode, the 3rd D5 diode, the cathode of the 2nd D5 diode connect the cathode of the 3rd D5 diode, the 2nd D5 diode Cathode be also connected with one end of the parallel circuit being made of the second capacitor, the 11st capacitor；The input terminal of electric pressure converter connects By the one end for the parallel circuit that the second capacitor, the 11st capacitor form, output end connection is made of the 8th capacitor, the 6th capacitor One end of parallel circuit, ground terminal ground connection, ground terminal are also connected with the another of the parallel circuit being made of the second capacitor, the 11st capacitor One end；The one end for the parallel circuit being made of the 8th capacitor, the 6th capacitor is as 5V voltage output end, by the 8th capacitor, the 6th The other end ground connection for the parallel circuit that capacitor is constituted.

3. novel oven temperature controller according to claim 2, it is characterised in that: the display control circuit includes the tenth Six resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance, the 21st resistance, the 6th triode, Seven triodes, the 8th triode, the 9th triode, the tenth triode, the 11st triode；

The microcontroller connects the 6th transistor base by the 16th resistance, connects the 8th triode by the 17th resistance Base stage, connects the 9th transistor base by the 18th resistance, the tenth transistor base is connected by the 19th resistance, by the 20 resistance connect the 11st transistor base, connect the 7th transistor base by the 21st resistance；6th triode, Seven triodes, the 8th triode, the 9th triode, the tenth triode, the 11st triode collector be grounded, emitter connects The temperature display and the setting value display screen.

4. novel oven temperature controller according to claim 3, it is characterised in that: the temperature measuring circuit includes filtering Circuit, switching gate device, in-phase amplifier；Filter circuit input terminal is as temperature measuring circuit input terminal, filter circuit output Connection switch gate input terminal, switching gate device output end is held to connect in-phase amplifier input terminal, in-phase amplifier output end As temperature measuring circuit output end, and connect microcontroller.

5. novel oven temperature controller according to claim 4, it is characterised in that: the shell is also additionally provided with output instruction Lamp, the first alarm lamp, the second alarm lamp, the setting value display screen include numerical value display area and baking timing letter Cease display area.

6. novel oven temperature controller according to claim 5, it is characterised in that: the button inputting circuits include the 7th Diode, the 9th diode, the tenth diode, interface chip, charactron, the second connector, the 8th connector；

Function key, addend key, subtrahend key one end connect the No.1 interface of the second connector, and the other end passes through the seven or two pole respectively Pipe, the 9th diode, the tenth diode are separately connected No. four interfaces, No. six interfaces, No. ten interfaces of the second connector；Interface core Piece one end connects the second connector, and the other end connects the second connector and charactron one end, the other end connection second of charactron Connector；8th connector connects the second connector, and is grounded；Output indicator, the first alarm lamp, the second alarm refer to Showing that lamp one end connects 5V voltage output end, while connecting the 8th connector, the output indicator other end connects the 8th connector, the The other end of one alarm lamp connects the second connector, and the other end of the second alarm lamp connects the second connector.

7. novel oven temperature controller according to claim 6, it is characterised in that: the temperature-time control circuit includes First triode, the second triode, first resistor, second resistance, the 4th connector, the 5th connector, the 21st diode, First relay；

Output end of first relay output end as temperature-time control circuit；First relay one end connection the 21st The anode of pole pipe, the other end connect the 21st diode cathode；21st diode cathode connects 12V voltage output end, The collector of anode the first triode of connection；The emitter of first triode connects zero curve, and the base stage of the first triode passes through first Resistance connects the collector of the second triode, and the collector of the second triode also connects 5V voltage output end by second resistance, The emitter of second triode is grounded, and the base stage of the second triode connects the 4th connector, the 4th connector ground and zero curve, and And also connect 5V voltage output end, 12V voltage output end and the 5th connector, the 5th connector ground, and it is defeated to connect 5V voltage Outlet.

8. novel oven temperature controller according to claim 7, it is characterised in that: the output of first alarm lamp Connecting circuit includes third triode, the 4th triode, the 29th resistance, the 30th resistance, the 31st resistance, the 30th Four resistance, third diode, third relay；

Third relay output end connects circuit output end as the output of the first alarm lamp of connection；Third relay one end The anode of third diode is connected, the other end connects third diode cathode；Third diode cathode connects 12V voltage output End, the collector of anode connection third transistor；The emitter of third transistor connects zero curve, and the base stage of third transistor passes through the 31 resistance connect the collector of the 4th triode；The collector of 4th triode connects 5V voltage by the 34th resistance Output end, the emitter ground connection of the 4th triode, the base stage of the 4th triode connect microcontroller by the 30th resistance, and the 4th The base stage of triode is connected with 5V voltage output end by the 29th resistance by the 30th resistance.

9. novel oven temperature controller according to claim 8, it is characterised in that: the output of second alarm lamp Connecting circuit includes the 5th triode, the 6th triode, the 32nd resistance, the 33rd resistance, the 42nd resistance, the 4th 13 resistance, the 4th diode, the 4th relay；

4th relay output end connects circuit output end as the output of the second alarm lamp of connection；4th relay one end The anode of the 4th diode is connected, the other end connects the 4th diode cathode；4th diode cathode connects 12V voltage output End, the collector of anode the 5th triode of connection；The emitter of 5th triode connects zero curve, and the base stage of the 5th triode passes through the 33 resistance connect the collector of the 6th triode；The collector of 6th triode connects 5V voltage by the 43rd resistance The base stage of output end, the emitter ground connection of the 6th triode, the 6th triode connects microcontroller by the 32nd resistance, the The base stage of six triodes is connected with 5V voltage output end by the 42nd resistance by the 32nd resistance.