CN2735239Y - Strong current and light current isolated electromagnetic water heater controller - Google Patents
Strong current and light current isolated electromagnetic water heater controller Download PDFInfo
- Publication number
- CN2735239Y CN2735239Y CN 200420088577 CN200420088577U CN2735239Y CN 2735239 Y CN2735239 Y CN 2735239Y CN 200420088577 CN200420088577 CN 200420088577 CN 200420088577 U CN200420088577 U CN 200420088577U CN 2735239 Y CN2735239 Y CN 2735239Y
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- chip microcomputer
- lotus root
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Abstract
The utility model discloses a strong current and light current isolated electromagnetic water heater controller, comprising a strong current part used for heating electromagnetic inductive, and a light current part used for the man machine operation interface and two singlechips. Each functional circuit of the strong current part is connected with a corresponding functional interface on one singlechip. Each functional circuit of the light current part is connected with a corresponding functional interface on the other singlechip. An optical coupling isolation communication channel which is used for the data communication between the singlechips is arranged between the two singlechips. The strong current and light current isolated electromagnetic water heater controller uses two singlechips to respectively control the man machine operation part of the light current and the power control part of the strong current high voltage. The various operations and the exchange of the setting parameter between two parts are communicated by the optical coupling complete isolation communication channel. Therefore, the strong current of the electromagnetic inductive heating part and the light current of the man machine operation interface part are completely isolated to make the user safer when the user operates.
Description
Technical field
The utility model relates to a kind of controller of electromagnet water heater, especially relates to the electromagnet water heater controller that a kind of strong and weak electricity is isolated fully mutually.
Background technology
General electric heater is that the heat-generating pipe by the built-in resistor silk adds hot water, belongs to direct heating, if heat-generating pipe has corrosion damaged, the situation that then has electric leakage takes place, so general electric heater is to reach the water power isolation effect fully; Electromagnet water heater by the principle of electromagnetic induction heating, allows electromagnetic wave form eddy current in the inner bag of water heater and gives birth to heat, so just heated water after the inner bag heating. belong to indirect. and, electromagnet water heater can guarantee the water power isolation.Because electromagnet water heater eddy-current heating part can produce high pressure (about about 1500V) when work, product on the light current open market of the forceful electric power of this high-pressure section and man machine operation interface is not accomplish to isolate fully, makes the user that potential Danger Electric shock risk still be arranged.
The utility model content
The electromagnet water heater controller that provides a kind of strong and weak electricity isolated is provided the purpose of this utility model, can solve the problem that the light current of the forceful electric power of electromagnetic induction heating part and man machine operation interface part is isolated fully fully, guarantees safe in utilization.
The purpose of this utility model can realize by following technical measures: comprise strong power part that is used for electromagnetic induction heating and the weak current part that is used for man machine operation interface, it is characterized in that: also comprise two single-chip microcomputers, each functional circuit of strong power part is connected with function corresponding interface on the single-chip microcomputer, each functional circuit of weak current part is connected with function corresponding interface on another single-chip microcomputer, is provided with the light lotus root isolation channel that is used for carrying out between the single-chip microcomputer data communication between two single-chip microcomputers.Use double mcu to divide control respectively to the human-machine operation part of light current and the power control section of forceful electric power high pressure, the various operations between two parts and the exchange of setup parameter, the channel of isolating fully with the light lotus root carries out communication.
Described light-coupled isolation channel comprises light lotus root IC4, IC5, pull-up resistor R2, R3, R56 and R57, the described connecting pin PIN8 that is used to control the single-chip microcomputer B of man machine operation interface weak current part is connected through the connecting pin PIN2 of resistance R 2 with light lotus root IC5, the connecting pin PIN1 of light lotus root IC5 is connected with+5V power supply, the connecting pin PIN10 of single-chip microcomputer B connects the connecting pin PIN5 of light lotus root IC4, connect pull-up resistor R3 simultaneously, the connecting pin PIN4 ground connection of light lotus root IC4; The described connecting pin PIN8 that is used to control the Chip Microcomputer A of electromagnetic induction heating strong power part is connected with the connecting pin PIN2 of light lotus root IC4 through R56, the connecting pin PIN1 of light lotus root IC4 is connected with+5V power supply, the connecting pin PIN6 of Chip Microcomputer A is connected with the connecting pin PIN5 of light lotus root IC5, connects simultaneously and draws resistance R 57.
The weak current part that is used for man machine operation interface mainly contains display circuit, button inputting circuits, water temperature testing circuit and pot temperature testing circuit.The strong power part that is used for electromagnetic induction heating mainly contains current sample, voltage sampling circuit, IGBT power tube temperature sampling circuit, cooling fan circuit.In human-machine operation control single chip computer part, the user imports various settings, such as subscription time, set water temperature etc., after corresponding processing being done in these settings at the human-machine operation control single chip computer, related data is carried out communication by isolating channel and forceful electric power power output control single chip computer, after forceful electric power power output control single chip computer is accepted data, according to own the sampling situation of voltage, electric current and temperature is handled accordingly to the heating situation again.
The utility model is owing to adopted two single-chip microcomputers respectively human-machine operation and the output of forceful electric power power to be controlled, the channel that data communication adopts the light lotus root to isolate, can realize that like this forceful electric power of electromagnetic induction heating part and the light current of man machine operation interface part isolates fully, make the user safer in the time of operation.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of weak current part in the utility model specific embodiment;
Fig. 3 is the circuit theory diagrams of the foregoing description strong power part;
Fig. 4 is a concrete control flow chart of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model is used for the weak current part of man machine operation interface, mainly contains display circuit, button inputting circuits, water temperature testing circuit and pot temperature testing circuit.The strong power part that is used for electromagnetic induction heating mainly contains current sample, voltage sampling circuit, IGBT power tube temperature sampling circuit, cooling fan circuit.Each functional circuit of weak current part and single-chip microcomputer B go up the function corresponding interface and are connected, and each functional circuit of strong power part is connected with function corresponding interface on the Chip Microcomputer A, are provided with the light-coupled isolation channel that is used to carry out data communication between two Chip Microcomputer A, the B.
Above-mentioned each circuit is divided on two wiring boards, and first is the human-machine operation control panel, and second is power output control panel, they is connected with the winding displacement cable with combination hub.
As Fig. 2, shown in Figure 3, double mcu is isolated communicating circuit 1 mainly by light lotus root IC4, IC5, and pull-up resistor R2, R3, R56 and R57 form.The PIN8 pin of single-chip microcomputer B is connected with the PIN2 pin of optocoupler IC5 by resistance R 2, and the PIN1 pin of optocoupler IC5 is connected with+5V power supply.The PIN10 pin of single-chip microcomputer B connects the PIN5 pin of optocoupler IC4, connects pull-up resistor R3 simultaneously, the PIN4 pin ground connection of optocoupler IC4.The PIN8 pin of Chip Microcomputer A is connected with the PIN2 pin of optocoupler IC4 by resistance R 56, and the PIN1 pin of optocoupler IC4 is connected with+5V power supply.The PIN6 pin of Chip Microcomputer A is connected with the PIN5 pin of optocoupler IC5, connects simultaneously and draws resistance R 57.It is the chip of LG1202 that Chip Microcomputer A, B adopt model.
Coolant-temperature gage testing circuit and the warm testing circuit 4 of pot, mainly by resistance R 19, R20, capacitor C 3, C12, temperature sensor WATER SENSOR1 and SENSOR2 form.Wherein the output lead of water temperature and pot temperature sensor connects PIN19 and the PIN20 pin of single-chip microcomputer B respectively.
Display circuit 5 is made up of driving chip IC 2 and the liquid crystal LCD of HT1621, and PIN15～PIN17 of single-chip microcomputer B links to each other with PIN12, the PIN11, the PIN9 pin that drive chip IC 2 respectively after connecting and drawing resistance R 12～R14; Driving chip IC 2 is connected respectively with the SEG pin with the COM of liquid crystal LCD.
IGBT power tube surface temperature testing circuit 6, mainly by resistance R 3, capacitor C 2, temperature sensor IGBTSENSOR forms.Wherein the output lead of sensor connects the PIN1 pin of Chip Microcomputer A.
As shown in Figure 4, control flow is as follows: after human-machine operation Single-chip Controlling part is powering on, at first, initialization MCU; Secondly, in human-machine operation single-chip microcomputer B, at first accept and the various settings of process user, demonstration is handled, prompt tone is handled, simultaneously coolant-temperature gage and cooking bottom temperature are detected, these information of integrated treatment, draw and whether will heat, should use great power to heat, last, the channel that these key parameters are isolated fully by optocoupler carries out communication with the single-chip microcomputer of forceful electric power heating control section branch; In forceful electric power heating control single chip computer A part, at first, voltage, electric current and IGBT temperature are sampled, handle according to pre-defined rule, secondly, carry out communication with single-chip microcomputer B, receive the control parameter and the order of sending of main control single-chip microcomputer B, carry out power control according to these parameters and order: open fan coolling simultaneously.
Claims (2)
1, a kind of electromagnet water heater controller of strong and weak electricity isolation, comprise strong power part that is used for electromagnetic induction heating and the weak current part that is used for man machine operation interface, it is characterized in that: also comprise two single-chip microcomputers, each functional circuit of strong power part is connected with function corresponding interface on the single-chip microcomputer, each functional circuit of weak current part is connected with function corresponding interface on another single-chip microcomputer, is provided with the light lotus root isolation channel that is used for carrying out between the single-chip microcomputer data communication between two single-chip microcomputers.
2, the electromagnet water heater controller of strong and weak electricity isolation according to claim 1, it is characterized in that: described light-coupled isolation channel comprises light lotus root IC4, IC5, pull-up resistor R2, R3, R56 and R57, the described connecting pin PIN8 that is used to control the single-chip microcomputer B of man machine operation interface weak current part is connected through the connecting pin PIN2 of resistance R 2 with light lotus root IC5, the connecting pin PIN1 of light lotus root IC5 is connected with+5V power supply, the connecting pin PIN10 of single-chip microcomputer B connects the connecting pin PIN5 of light lotus root IC4, connect pull-up resistor R3 simultaneously, the connecting pin PIN4 ground connection of light lotus root IC4; The described connecting pin PIN8 that is used to control the Chip Microcomputer A of electromagnetic induction heating strong power part is connected with the connecting pin PIN2 of light lotus root IC4 through R56, the connecting pin PIN1 of light lotus root IC4 is connected with+5V power supply, the connecting pin PIN6 of Chip Microcomputer A is connected with the connecting pin PIN5 of light lotus root IC5, connects simultaneously and draws resistance R 57.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420088577 CN2735239Y (en) | 2004-09-24 | 2004-09-24 | Strong current and light current isolated electromagnetic water heater controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420088577 CN2735239Y (en) | 2004-09-24 | 2004-09-24 | Strong current and light current isolated electromagnetic water heater controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2735239Y true CN2735239Y (en) | 2005-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420088577 Expired - Fee Related CN2735239Y (en) | 2004-09-24 | 2004-09-24 | Strong current and light current isolated electromagnetic water heater controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2735239Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608936A (en) * | 2012-03-21 | 2012-07-25 | 成都前锋电子有限责任公司 | Method and system for controlling communication between control main board and display panel of water heater |
| CN102613878A (en) * | 2012-03-29 | 2012-08-01 | 九阳股份有限公司 | Electromagnetic heating kettle with high electromagnetic compatibility |
| CN102662336A (en) * | 2012-05-03 | 2012-09-12 | 深圳市卓先实业有限公司 | Control device of electric heating equipment |
| CN101615001B (en) * | 2008-06-26 | 2012-10-03 | 北京谊安医疗系统股份有限公司 | Multiplex device for single bus interface signal ground |
-
2004
- 2004-09-24 CN CN 200420088577 patent/CN2735239Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615001B (en) * | 2008-06-26 | 2012-10-03 | 北京谊安医疗系统股份有限公司 | Multiplex device for single bus interface signal ground |
| CN102608936A (en) * | 2012-03-21 | 2012-07-25 | 成都前锋电子有限责任公司 | Method and system for controlling communication between control main board and display panel of water heater |
| CN102608936B (en) * | 2012-03-21 | 2014-02-19 | 成都前锋电子有限责任公司 | Method and system for controlling communication between control main board and display panel of water heater |
| CN102613878A (en) * | 2012-03-29 | 2012-08-01 | 九阳股份有限公司 | Electromagnetic heating kettle with high electromagnetic compatibility |
| CN102613878B (en) * | 2012-03-29 | 2015-04-29 | 九阳股份有限公司 | Electromagnetic heating kettle with high electromagnetic compatibility |
| CN102662336A (en) * | 2012-05-03 | 2012-09-12 | 深圳市卓先实业有限公司 | Control device of electric heating equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |