CN204950529U - Multi -functional accurate accuse temperature health preserving kettle control circuit - Google Patents
Multi -functional accurate accuse temperature health preserving kettle control circuit Download PDFInfo
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- CN204950529U CN204950529U CN201520700778.3U CN201520700778U CN204950529U CN 204950529 U CN204950529 U CN 204950529U CN 201520700778 U CN201520700778 U CN 201520700778U CN 204950529 U CN204950529 U CN 204950529U
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Abstract
The utility model discloses a multi -functional accurate accuse temperature health preserving kettle control circuit, including power unit, zero -crossing detection part, power control part, temperature test section, display part, singlechip and function operation section. The utility model has the advantages of accuse temperature is accurate, the function is various, easy operation, demonstration are clear.
Description
Technical field
The utility model belongs to electronic technology field, is specifically related to a kind of multi-functional accurate temperature control health-promotion kettle control circuit.
Background technology
Insulating pot and congee are stewed because its cost is low simple to operate, become family and commonly use machine for kitchen use.So its mechanical type adopted or electronic type mode of heating are high-power heating, boiled mode of namely stopping to reach the object of Fast Heating more.Because of structural design and the inevitable hysteresis quality of temperature acquisition process, cannot obtain real time temperature in kettle body, this mode is for realizing accurate temperature control extremely not easily.And instantly along with the raising of people's living condition, healthy life idea is day by day by people are paid close attention to, diversified food materials, the mode of hotting plate of science also receives much concern thereupon.These traditional machine for kitchen uses are because of the reasonable not needs that cannot meet people instantly of its function singleness, design.
Utility model content
The utility model provides a kind of multi-functional accurate temperature control health-promotion kettle control circuit, adopts controllable silicon angle modulation mode to control power output, realizes Fast Heating and accurate temperature control, meets and temperature is precisely required to higher food materials, medicinal material, uses the needs of water.
The technical solution adopted in the utility model is:
Multi-functional accurate temperature control health-promotion kettle control circuit, is characterized in that: include power unit, zero passage detection part, power control section divided, temperature detection part, display section, single-chip microcomputer and function part, described single-chip microcomputer and function part include single-chip microcomputer main control chip (23), ceramic disc capacitor (21), four buttons (20), described power unit includes current-limiting resistance (1), power subsystem (3), zero passage detection part includes fuse (2), diode (4), resistance (5), resistance (6), triode (7), power control section is divided and is included resistance (8), controllable silicon (9), civil power ACN is divided into three tunnels: the first via is connected to the port of health-promotion kettle heat-generating pipe, second tunnel flows through through current-limiting resistance (1) that to change out direct current after power subsystem (3) be that whole control circuit is powered, 3rd road flows into zero passage detection part, ACL end is through fuse (2), resistance (6) is connected to the emitter stage of triode (7), the negative pole of diode (4) is connected to through fuse (2), the anode of controllable silicon (9) is connected to through fuse (2), civil power ACN is connected to the base stage of triode (7) through resistance (5), the heating wire interface (10) that anode is connected with resistance (8), negative electrode connects health-promotion kettle heat-generating pipe of controllable silicon (9), triode (7) and resistance (5,6), diode (4) form zero passage detection loop, triode (7) conducting during ACL positive half cycle, its emitter stage output low level, triode (7) cut-off during ACL negative half period, its emitter stage exports high level, it is exactly the zero crossing of civil power during the conversion of triode (7) colelctor electrode level height, single-chip processor i/o mouth detects the time delay datum mark of zero crossing as controllable silicon angle modulation, control the power output of heating wire in this way, realize accurate temperature control, meet the demand of multiple water, food materials, be connected to the P0.2 pin of single-chip microcomputer between the emitter stage of triode (7) and resistance (6) by node, the other end of resistance (8) connects the P0.1 pin of single-chip microcomputer, described temperature detection part includes the thermistor being contained in health-promotion kettle kettle body chassis, thermistor is connected with circuit board by connector (16), one end of thermistor connects+5V power supply by resistance (17), other end ground connection, both mid-point voltages are determined by the resistance ratio of temperature-sensitive resistance and resistance (17), this voltage is connected to Chip Microcomputer A/D mouth through resistance (18) again through ceramic disc capacitor (19) filtering and reads in, digital-to-analogue conversion is completed by single-chip microcomputer, the process such as digital filtering draws thermistor temp value, single-chip microcomputer controls the heating wire power at the bottom of kettle in conjunction with current duty again according to the thermistor temp detected, + 5V power supply is also connected with buzzer (11), the other end of buzzer connects the negative pole of electrochemical capacitor (12), positive pole and the resistance (18) of electrochemical capacitor (12) are connected to the P2.0 pin of single-chip microcomputer by node, described display section includes 74HC164 chip (15), resistance (22), LED (24), charactron (25), the VDD pin of single-chip microcomputer main control chip (23) be connected ceramic disc capacitor (21) between GND pin, the P2.2 of single-chip microcomputer main control chip (23), P1.1, P1.3, P1.5 pin is connected with a button (20) respectively, single-chip microcomputer main control chip (23) judges as master element scanning button (20) time that user preengages, selected mode of operation, control 74HC164 chip (15) lights the selected pattern of corresponding LED (24) indicating user, control charactron (25) correspondence display remaining time or particular code, when subscription time reaches, control controllable silicon (9) with relevant work work pattern according to temperature conditions in relevant work pattern and health-promotion kettle kettle.Controllable silicon has following Three models work: (1) full power operation pattern, in actual measurement kettle, temperature is lower than during design temperature 8 degree or under sterilization pattern, controllable silicon (9) whole waveform in conducting is allowed without delay output low level through resistance (8) at I/O2 mouth, heating wire full power operation after single-chip processor i/o 1 mouthful detects zero crossing; (2) non-fully power modes of operation, when in kettle, temperature is less than design temperature 0.5-8 or cook congee, after tea, liquid medicine opens, postpone output low level at I/O2 mouth after single-chip processor i/o 1 mouthful detects zero crossing and allow conducting in the non-whole waveform of controllable silicon 9 through resistance 8, heating wire is with suitable small-power work; (3) discontinuous operation pattern, cooks congee, after tea, liquid medicine opens ten minutes, and single-chip processor i/o 2 mouthfuls of interrupted output low levels allow controllable silicon (9) intermittent conduction through resistance (8), thus heating wire fever on and off.
Multi-functional accurate temperature control health-promotion kettle control circuit is made up of 7 parts:
1) power unit: it is that the circuit such as buzzer, single-chip microcomputer is powered that input civil power is converted to stabilizing low voltage direct current.
2) zero passage detection part: the zero crossing detecting civil power, as the benchmark timing point of controllable silicon angle modulation time delay.
3) power control section is divided: realized by the angle modulation of SCR control loop.
4) temperature detection part: be contained in the thermistor in kettle body and the formation of the capacitance resistance component in circuit.
5) single-chip microcomputer: the core of control section, completes temperature acquisition, data processing, input and output control etc.
6) display section: be made up of charactron and LED circuit, numeral method design temperature, design temperature, light emitting diode instruction selected function.Buzzer cooperation provides corresponding prompting.
7) function part: be made up of button loop, selects in order to function, design temperature, reservation timing.
The beneficial effects of the utility model are:
A) temperature control is accurate, adopt controllable silicon angle modulation mode regulating power, high-power Fast Heating is used when differing larger with design temperature, close to during design temperature adopt low-power heating, water-in-kettle body temperature is peaceful slow, even, single-chip microcomputer can measure accurately and be controlled, and actual measurement can accomplish ± 1 DEG C.
B) diverse in function, simple to operate.Because the accurate temperature control under several functions pattern can be realized, several functions can be increased heating up water on function basis, and by means of only panel respective keys according to after indicator lamp and charactron, the selected corresponding function of buzzer prompting, middle substantially without the need to people for keeping an eye on.
C) show clear, charactron and LED display combine, display selected function remaining time that can be real-time.
D) operation indicating, in operating process, whether buzzer prompting successful operation, and after function completes, buzzer can point out user to complete.
Accompanying drawing explanation
The circuit diagram that Fig. 1 is power unit of the present utility model, zero passage detection part, power control section are divided.
Fig. 2 is the circuit diagram of temperature detection part of the present utility model.
Fig. 3 is the circuit diagram of single-chip microcomputer of the present utility model and function part.
Fig. 4 is the circuit diagram of display section of the present utility model.
Detailed description of the invention
As Figure 1-4, multi-functional accurate temperature control health-promotion kettle control circuit, include power unit, zero passage detection part, power control section divided, temperature detection part, display section, single-chip microcomputer and function part, described single-chip microcomputer and function part include single-chip microcomputer main control chip 23, ceramic disc capacitor 21, four buttons 20, described power unit includes current-limiting resistance 1, power subsystem 3, zero passage detection part includes fuse 2, diode 4, resistance 5, resistance 6, triode 7, power control section is divided and is included resistance 8, controllable silicon 9, civil power ACN is divided into three tunnels: the first via is connected to the port of health-promotion kettle heat-generating pipe, it is that whole control circuit is powered that direct current is changed out on second tunnel after current-limiting resistance (1) flows through power subsystem 3, 3rd road flows into zero passage detection part, ACL end is through fuse 2, resistance 6 is connected to the emitter stage of triode 7, the negative pole of diode 4 is connected to through fuse 2, the anode of controllable silicon 9 is connected to through fuse 2, civil power ACN is connected to the base stage of triode 7 through resistance 5, the heating wire interface 10 that the anode of controllable silicon 9 is connected with resistance 8, negative electrode connects health-promotion kettle heat-generating pipe, triode 7 and resistance 5, resistance 6, diode 4 form zero passage detection loop, triode 7 conducting during ACL positive half cycle, its emitter stage output low level, during ACL negative half period, triode 7 ends, and its emitter stage exports high level, is exactly the zero crossing of civil power during the conversion of triode 7 colelctor electrode level height, single-chip processor i/o mouth detects the time delay datum mark of zero crossing as controllable silicon angle modulation, control the power output of heating wire in this way, realize accurate temperature control, meet the demand of multiple water, food materials, be connected to the P0.2 pin of single-chip microcomputer between the emitter stage of triode 7 and resistance 6 by node, the other end of resistance 8 connects the P0.1 pin of single-chip microcomputer, described temperature detection part includes the thermistor being contained in health-promotion kettle kettle body chassis, thermistor is connected with circuit board by connector 16, one end of thermistor connects+5V power supply by resistance 17, other end ground connection, both mid-point voltages are determined by the resistance ratio of temperature-sensitive resistance and resistance 17, this voltage is connected to Chip Microcomputer A/D mouth through resistance 18 again through ceramic disc capacitor 19 filtering and reads in, digital-to-analogue conversion is completed by single-chip microcomputer, the process such as digital filtering draws thermistor temp value, single-chip microcomputer controls the heating wire power at the bottom of kettle in conjunction with current duty again according to the thermistor temp detected, + 5V power supply is also connected with buzzer 11, the other end of buzzer connects the negative pole of electrochemical capacitor 12, the positive pole of electrochemical capacitor 12 and resistance 18 are connected to the P2.0 pin of single-chip microcomputer by node, described display section includes 74HC164 chip 15, resistance 22, LED 24, charactron 25, the VDD pin of single-chip microcomputer main control chip 23 is connected ceramic disc capacitor 21 with between GND pin, P2.2, P1.1, P1.3, P1.5 pin of single-chip microcomputer main control chip 23 is connected with a button 20 respectively, single-chip microcomputer main control chip 23 judges the time that user preengages, selected mode of operation as master element scanning button 20, control 74HC164 chip 15 lights the selected pattern of corresponding LED 24 indicating user, controls charactron 25 correspondence display remaining time or particular code, when subscription time reaches, control controllable silicon 9 with relevant work work pattern according to temperature conditions in relevant work pattern and health-promotion kettle kettle.Controllable silicon has following Three models work: (1) full power operation pattern, in actual measurement kettle, temperature is lower than during design temperature 8 degree or under sterilization pattern, controllable silicon 9 whole waveform in conducting is allowed without delay output low level through resistance 8 at I/O2 mouth, heating wire full power operation after single-chip processor i/o 1 mouthful detects zero crossing; (2) non-fully power modes of operation, when in kettle, temperature is less than design temperature 0.5-8 or cook congee, after tea, liquid medicine opens, postpone output low level at I/O2 mouth after single-chip processor i/o 1 mouthful detects zero crossing and allow conducting in the non-whole waveform of controllable silicon 19 through resistance 8, heating wire is with suitable small-power work; (3) discontinuous operation pattern, cooks congee, after tea, liquid medicine opens ten minutes, and single-chip processor i/o 2 mouthfuls of interrupted output low levels allow controllable silicon 9 intermittent conduction through resistance 8, thus heating wire fever on and off.
Silicon controlled multi-operation mode, realize heating wire multiple power export, heat up water, boil the tea time transfer to when closing on water and opening small-power export, can effectively realize accurate temperature control, boil water when avoiding long destruction water quality; During virus killing again can long time make water be in fluidized state, reach the effect of sterilization; Cook congee, decoct medicinal herbs meals time after boiling, intermittent work pattern, can complete when not affecting nutritive value; Therefore the requirement of multiple-working mode is fully met.
Claims (1)
1. multi-functional accurate temperature control health-promotion kettle control circuit, is characterized in that: include power unit, zero passage detection part, power control section divided, temperature detection part, display section, single-chip microcomputer and function part, described single-chip microcomputer and function part include single-chip microcomputer main control chip (23), ceramic disc capacitor (21), four buttons (20), described power unit includes current-limiting resistance (1), power subsystem (3), zero passage detection part includes fuse (2), diode (4), resistance (5), resistance (6), triode (7), power control section is divided and is included resistance (8), controllable silicon (9), civil power ACN is divided into three tunnels: the first via is connected to the port of health-promotion kettle heat-generating pipe, second tunnel flows through through current-limiting resistance (1) that to change out direct current after power subsystem (3) be that whole control circuit is powered, 3rd road flows into zero passage detection part, ACL end is through fuse (2), resistance (6) is connected to the emitter stage of triode (7), the negative pole of diode (4) is connected to through fuse (2), the anode of controllable silicon (9) is connected to through fuse (2), civil power ACN is connected to the base stage of triode (7) through resistance (5), the heating wire interface (10) that anode is connected with resistance (8), negative electrode connects health-promotion kettle heat-generating pipe of controllable silicon (9), be connected to the P0.2 pin of single-chip microcomputer between the emitter stage of triode (7) and resistance (6) by node, the other end of resistance (8) connects the P0.1 pin of single-chip microcomputer, described temperature detection part includes the thermistor being contained in health-promotion kettle kettle body chassis, thermistor is connected with circuit board by connector (16), one end of thermistor connects+5V power supply by resistance (17), other end ground connection, both mid-point voltages are determined by the resistance ratio of temperature-sensitive resistance and resistance (17), this voltage is connected to Chip Microcomputer A/D mouth through resistance (18) again through ceramic disc capacitor (19) filtering and reads in, + 5V power supply is also connected with buzzer (11), the other end of buzzer connects the negative pole of electrochemical capacitor (12), positive pole and the resistance (18) of electrochemical capacitor (12) are connected to the P2.0 pin of single-chip microcomputer by node, described display section includes 74HC164 chip (15), resistance (22), LED (24), charactron (25), the VDD pin of single-chip microcomputer main control chip (23) be connected ceramic disc capacitor (21) between GND pin, the P2.2 of single-chip microcomputer main control chip (23), P1.1, P1.3, P1.5 pin is connected with a button (20) respectively, single-chip microcomputer main control chip (23) judges as master element scanning button (20) time that user preengages, selected mode of operation, control 74HC164 chip (15) lights the selected pattern of corresponding LED (24) indicating user, control charactron (25) correspondence display remaining time or particular code, when subscription time reaches, control controllable silicon (9) with relevant work work pattern according to temperature conditions in relevant work pattern and health-promotion kettle kettle.
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| CN201520700778.3U CN204950529U (en) | 2015-09-10 | 2015-09-10 | Multi -functional accurate accuse temperature health preserving kettle control circuit |
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| CN201520700778.3U CN204950529U (en) | 2015-09-10 | 2015-09-10 | Multi -functional accurate accuse temperature health preserving kettle control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780109A (en) * | 2019-11-13 | 2020-02-11 | 小熊电器股份有限公司 | Resistive load detection circuit and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780109A (en) * | 2019-11-13 | 2020-02-11 | 小熊电器股份有限公司 | Resistive load detection circuit and detection method |
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Effective date of registration: 20170705 Address after: 518000 Guangdong province Shenzhen Guangming New District Gongming street Gongming City Nader Yongjia mold base industrial park 1 building, 2 floor building, building on the third floor Patentee after: Shenzhen city extension Pool Technology Co. Ltd. Address before: 231600 Feidong New Town Development Zone, Hefei, Anhui Patentee before: Hefei Longduo Electronic Technology Co., Ltd. |