CN2777614Y - Intelligent temp controller - Google Patents
Intelligent temp controller Download PDFInfo
- Publication number
- CN2777614Y CN2777614Y CN 200520017509 CN200520017509U CN2777614Y CN 2777614 Y CN2777614 Y CN 2777614Y CN 200520017509 CN200520017509 CN 200520017509 CN 200520017509 U CN200520017509 U CN 200520017509U CN 2777614 Y CN2777614 Y CN 2777614Y
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- microprocessor
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- temperature
- operational amplifier
- driver
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Abstract
The utility model relates to a temperature controller, particularly an intelligent temperature controller which is suitable for automatic control by multiple channels in an electrothermal cable floor heating system for a family or for an industrial building. The utility model comprises a casing and a control circuit, wherein the casing is provided with a microswitch; the control circuit which is arranged in the casing comprises three operational amplifiers which are connected with a power supply; the input terminals of the three operational amplifiers are respectively connected with an indoor temperature sensitive element, a floor temperature sensor and a system temperature sensor; the control circuit also comprises a microprocessor, one output terminal of the microprocessor is connected with a controlled relay circuit, and the other group of terminals are connected with the input terminal of a driver; the output terminal of the driver is connected with a liquid crystal screen. The utility model is also suitable for other electric refrigerating or electric heating systems, equipment or electric appliances to carry out temperature control and the utility model ensures that overheating or supercooling operation can not be generated to the systems. The utility model has the advantages of high temperature control precision, large controllable range, multiple monitoring channels, novel safety protecting function, reliable performance, small size, low power consumption, convenient use, broad application range, etc.
Description
Technical field
The utility model relates to a kind of temperature controller, particularly relates to the intelligent temperature controller that hyperchannel is controlled automatically in a kind of heating cable floor heating system that is applicable to family or industrial building.
Background technology
In the common intelligent temperature controller product, its intelligent temperature control circuit majority is the working method of single monitor channel, and adopt thermal resistor, bimetallic strip or air bag etc. mostly as temperature-sensing element (device), though there is the minority temperature controller to use semiconductor temperature sensor preferably, the control of these intelligent temperatures exists substantially all that range of control is narrow, monitor channel is few, stability and poor reliability, dangerous, shortcoming such as power consumption is big and volume is big.
Summary of the invention
Deficiency in view of above-mentioned prior art existence, the purpose of this utility model is: take the automatic monitor mode of hyperchannel, be switched on or switched off for the relay contact of heating cable through microprocessor intelligence control power supply as main control unit, make heating system reach needed indoor temperature on time, automatically and exactly, the control heating system is in energy-conservation economical operation state on time, prevents that the indoor floor temperature is too high and prevents the overheated heating phenomenon of heating system.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of intelligent temperature controller, it comprises the housing that is provided with microswitch and is installed in the housing and is provided with the indoor temperature sensitive element that is connected with the power supply device respectively, the indoor temperature operational amplifier, the floor temperature sensor, ground plate temperature operational amplifier, the control circuit of system temperature sensor and system temperature operational amplifier is characterized in that: described indoor temperature operational amplifier, ground plate temperature operational amplifier and system temperature operational amplifier be the interior temperature-sensing element (device) of junction chamber respectively, floor temperature sensor and system temperature sensor; Described control circuit also comprises microprocessor, and the input end of microprocessor connects the output terminal of three operational amplifiers respectively; Described control circuit also comprises driver and controlled relay circuit, and an output terminal of microprocessor is connected with controlled relay circuit, the driver connected input end of another group output terminal of microprocessor, and output end of driver connects liquid crystal display; Liquid crystal display is installed on the housing.
This intelligent temperature controller also is applicable to other electricity refrigeration or electric heating, equipment or electrical equipment, and can guarantee that cold or overheated operation can not take place said system.Therefore the utlity model has the temperature-controlled precision height, controlled range is big, monitor channel is many, function of safety protection is complete, dependable performance, volume is little, low in energy consumption, easy to use and advantage such as applied range.
Description of drawings
Fig. 1 is the utility model circuit block diagram and as Figure of abstract.
Fig. 2 is the utility model electrical schematic diagram.
Wherein: 1. indoor temperature sensitive element (IC1), 2. indoor temperature operational amplifier, 3. microprocessor, 4. driver, 5. liquid crystal display, 6. controlled relay circuit, 7. floor temperature sensor (FS), 8. plate temperature operational amplifier, 9. system temperature sensor (IC3), 10 system temperature operational amplifiers, 11. power supply devices, 12. controlled heating cable, 13. housings.
Embodiment
With reference to Fig. 1,2, indoor temperature sensitive element 1 is a precision linear calibration Celsius, has the up-to-date solid-state circuit of positive temperature coefficient (PTC) (10mv/ ℃) aanalogvoltage output.It can be monitored indoor temperature and export relevant voltage, exports the 20th pin of microprocessor 3 after amplifying through the operational amplifier of being made up of integrated circuit U2B and resistance R 22 to R24 to.Microswitch K1 to K3 can set this intelligent temperature controller, controls the operation of whole heating system, reaching needed indoor temperature, and demonstrates this control temperature value by liquid crystal display 5.When if the temperature that presets is higher than current room temperature, because the 5th pin of microprocessor 3 is output as high level; Then the controlled relay circuit of being made up of transistor T 1 and resistance R 11, R12 and diode D12 and relay J can make transistor T 1 conducting, and then the relay J adhesive makes the contacting of external power supply.Thereby to controlled heating cable 12 energising heating; Heating symbol can occur on the liquid crystal display this moment, indicates this heating system to heat.The grounded emitter that the 5th pin of microprocessor 3 divides the base stage T1 that is crimped to transistor T 1 by resistance R 11, R12, the collector connecting relay J of T1.After this along with the rising of room temperature, the output potential of indoor temperature sensitive element 1 is also along with rising, when room temperature reaches the temperature that presets, the 5th pin output terminal of microprocessor 3 be in the then controlled relay circuit of low level transistor T 1 by, relay J disconnects, thereby has cut off the power supply of temperature controller to heating cable; Heating symbol on the liquid crystal display also disappears immediately at this moment, indicates whole heating system to stop heating.
If cause the too high or control circuit of room temperature to break down to cause floor temperature sensor 7 along with floor temperature anomaly its resistance step-down that raises because mistake presets, thereby the DC potential of the integrated circuit U2A reverse input end of ground plate temperature operational amplifier 8 also can raise unusually.When plate temperature practically during up to the limiting temperature of the plate superlatively value that sets in advance, the 5th pin output of microprocessor 3 can change low level immediately into; And then make transistor T 1 by, the external power supply contact of relay J is disconnected, cut off the heating power supply of controlled heating cable.This moment, the heating symbol of liquid crystal display also disappeared immediately, indicated whole heating system to stop heating.
Resistance R 3 and capacitor C 4 are formed the start automatic reset circuit of microprocessor 3 among the figure.Solid-state bridge heap BR1 and associated circuit components constitute the transformerless low-voltage direct stabilized voltage supply of this intelligent temperature controller among the figure.Three terminal regulator IC2 and associated circuit components have constituted the secondary mu balanced circuit of this intelligent temperature controller+5V working power.
U2A among the figure, U2B and U2C all are that model is the LM324 integrated circuit.
Claims (7)
1. intelligent temperature controller, it comprises the housing (13) that is provided with microswitch and is installed in the housing (13) and is provided with the indoor temperature sensitive element (1) that is connected with power supply device (11) respectively, indoor temperature operational amplifier (2), floor temperature sensor (7), ground plate temperature operational amplifier (8), the control circuit of system temperature sensor (9) and system temperature operational amplifier (10) is characterized in that: described indoor temperature operational amplifier (2), ground plate temperature operational amplifier (8) and system temperature operational amplifier (10) be the interior temperature-sensing element (device) (1) of junction chamber respectively, floor temperature sensor (7) and system temperature sensor (9); Described control circuit also comprises microprocessor (3), and the input end of microprocessor (3) connects the output terminal of three operational amplifiers (2), (8), (10) respectively; Described control circuit also comprises driver (4) and controlled relay circuit (6), an output terminal of microprocessor (3) is connected with controlled relay circuit (6), another group output terminal driver connected (4) input end of microprocessor (3), the output terminal of driver (4) connects liquid crystal display (5); Liquid crystal display (5) is installed on the housing (13).
2. intelligent temperature controller as claimed in claim 1 is characterized in that: described indoor temperature operational amplifier (2) exports the 20th pin of microprocessor (3) to through after amplifying by integrated circuit (U2B), with resistance (R22) to (R24); Described floor temperature amplifier (8) exports the 19th pin of microprocessor (3) to through after being amplified by integrated circuit (U2A), resistance (R17) to (R20); Described system temperature operational amplifier (10) exports the 21st pin of microprocessor (3) to through after being amplified by integrated circuit (U2C) and resistance (R25) to (R28).
3. intelligent temperature controller as claimed in claim 1, it is characterized in that: described controlled relay circuit (6) comprises transistor (T1) and resistance (R11), (R12) and diode (D12) and relay (J), the 5th pin by described microprocessor (3) passes through resistance (R11), (R12) dividing potential drop, be connected to the base stage of transistor (T1), (T1) grounded emitter, collector connecting relay (T1) (J).
4. intelligent temperature controller as claimed in claim 1 is characterized in that: the control signal of the 38th to 41 pin of described microprocessor (3) output is connected to the 9th, 11,12 and 17 pin of driver (4) respectively; And the output of the 1st to 8 pin of driver (4), the 21st to 24 pin and the 39th to 48 pin is connected to the 1st to 22 pin of liquid crystal display (5) respectively.
5. intelligent temperature controller as claimed in claim 1 is characterized in that: the external quartz crystal of described microprocessor (3) (CR1) and (CR2); Crystal (CR1) and resistance (R6), electric capacity (C6) and (C7) be connected to the 30th and 31 pin of microprocessor (3); Crystal (CR2) and electric capacity (C8) and (C9) be connected to the 32nd and the 33rd pin of microprocessor (3).
6. intelligent temperature controller as claimed in claim 1 is characterized in that: the 14th to 16 pin of described microprocessor (3) is connected to microswitch (K1) respectively to (K3).
7. intelligent temperature controller as claimed in claim 1 is characterized in that: what described microprocessor (3) adopted is that model is the single-chip microcomputer of PIC16F877A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017509 CN2777614Y (en) | 2005-04-21 | 2005-04-21 | Intelligent temp controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017509 CN2777614Y (en) | 2005-04-21 | 2005-04-21 | Intelligent temp controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777614Y true CN2777614Y (en) | 2006-05-03 |
Family
ID=36744996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520017509 Expired - Fee Related CN2777614Y (en) | 2005-04-21 | 2005-04-21 | Intelligent temp controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777614Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858618A (en) * | 2010-07-02 | 2010-10-13 | 宋文波 | Central heating and household control device for electric ground heating |
| CN101644935B (en) * | 2008-08-07 | 2013-04-17 | 天津大学 | Intelligent temperature controller for expectant temperature control of floor heating and working method thereof |
| CN103130188A (en) * | 2012-09-18 | 2013-06-05 | 青岛道一氧吧设备有限公司 | Low-temperature start technology of oxygen generator |
| CN105207222A (en) * | 2015-09-17 | 2015-12-30 | 国网天津市电力公司 | Intelligent electrical load distribution system and method |
| CN102538069B (en) * | 2012-01-13 | 2016-12-28 | 刘树伟 | Intelligent electric heating pre-controlling method |
-
2005
- 2005-04-21 CN CN 200520017509 patent/CN2777614Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644935B (en) * | 2008-08-07 | 2013-04-17 | 天津大学 | Intelligent temperature controller for expectant temperature control of floor heating and working method thereof |
| CN101858618A (en) * | 2010-07-02 | 2010-10-13 | 宋文波 | Central heating and household control device for electric ground heating |
| CN102538069B (en) * | 2012-01-13 | 2016-12-28 | 刘树伟 | Intelligent electric heating pre-controlling method |
| CN103130188A (en) * | 2012-09-18 | 2013-06-05 | 青岛道一氧吧设备有限公司 | Low-temperature start technology of oxygen generator |
| CN105207222A (en) * | 2015-09-17 | 2015-12-30 | 国网天津市电力公司 | Intelligent electrical load distribution system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Dino United (Beijing) Electronic Equipment Co., Ltd. Document name: payment instructions |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Dino United (Beijing) Electronic Equipment Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| 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 | ||
| DD01 | Delivery of document by public notice |
Addressee: DCR Union (Beijing) Electron & Equipment Co., Ltd. Document name: Notification that Application Deemed not to be Proposed |