CN202690489U - Electric fan with temperature control function - Google Patents
Electric fan with temperature control function Download PDFInfo
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- CN202690489U CN202690489U CN 201220279833 CN201220279833U CN202690489U CN 202690489 U CN202690489 U CN 202690489U CN 201220279833 CN201220279833 CN 201220279833 CN 201220279833 U CN201220279833 U CN 201220279833U CN 202690489 U CN202690489 U CN 202690489U
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- temperature
- electric fan
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- control unit
- fan
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Abstract
The utility model relates to an electric fan with a temperature control function. A temperature detection unit which is used for detecting room temperature is arranged on the electric fan, the output of the temperature detection unit is connected with a control unit, the control unit is connected with a drive unit so as to achieve the control on a fan motor, and the drive unit is an opto-coupler solid state relay. According to the electric fan with the temperature control function, a singlechip is adopted to carry out data processing and control, the condition that the wind speed of the electric fan is reduced along with temperature reducing and the electric fan is turned off when the temperature suitable for the sleeping of human bodies is reached is realized by adopting a temperature sampling and relay control technology, so that the human bodies feel comfortable, and the electric quantity is effectively saved.
Description
Technical field
The utility model belongs to the small household appliances technical field, relates to a kind of electric fan with function of temperature control.
Background technique
Summer heat, people are accustomed to suddenly blowing with the electric fan high wind speed, and the one side evaporation of perspiration that can blow to like this wind is very fast, and shell temperature significantly descends, the one side that is not blown to, evaporation of perspiration is slow, and skin temperature is relatively high, and the body surface blood vessel still is in diastole state, the blood circulation disequilibrium that finally causes human body, it is also unbalanced that sweat is drained, and may have a headache, the symptoms such as dizziness, general malaise, and serious also can bring out apoplexy, facial paralysis.If to about two o'clock in the morning, temperature has been reduced to the suitable sleep of human body temperature, is at this moment opening electric fan not only in evil case, and the waste electric weight.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of the utility model device is to provide a kind of electric fan with function of temperature control, real-time detected temperatures, and according to temperature to rotating speed and the unlatching of electric fan or close and make a response.
To achieve these goals, the technological scheme of the utility model device employing is:
A kind of electric fan with function of temperature control, be provided with temperature detecting unit for detection of room temperature at electric fan, the output of temperature detecting unit connects control unit, and control unit connects driver element and finishes control to fan electromotor, and described driver element is the optocoupler solid-state relay.
Described control unit is single-chip microcomputer, and described optocoupler solid-state relay has four, connects respectively four control output end mouths of single-chip microcomputer, and fan electromotor has four gears, and the output terminal of four optocoupler solid-state relays connects respectively described four gears.
Compared with prior art, the utility model adopts single-chip microcomputer to carry out data and processes and control, adopt temperature sampling, Control technology to realize that the wind speed of electric fan reduces along with the reduction of temperature, turn off electric fan when arriving the suitable sleep of human body temperature, make human body reach comfortable, and effectively saved electric weight.
Description of drawings
Fig. 1 is the utility model apparatus structure block diagram.
Fig. 2 is the utility model unit temp detection unit and the schematic diagram that is electrically connected of control unit.
Fig. 3 is the utility model device relay control unit circuit theory diagrams.
Fig. 4 is the utility model device workflow diagram.
Embodiment
Below in conjunction with accompanying drawing and example the utility model device is described in further details.
As shown in Figure 1, the utility model device comprises temperature detecting unit, control unit and the driver element for detection of room temperature generally.
Wherein, temperature detecting unit adopts the DS18B20 digital temperature sensor, and this sensor easy-to-connect can be applicable to multiple occasion after being packaged into, such as pipe type, and thread type, magnetic adsorption, the stainless steel packaged type, model is varied, and LTM8877 is arranged, LTM8874.DS18B20 has unique one-wire interface mode, and DS18B20 only needs a Tiaokou line can realize the both-way communication of microprocessor and DS18B20 when being connected with microprocessor.Temperature-measuring range-55 ℃～+ 125 ℃, 0.5 ℃ of intrinsic thermometric resolution.Support the multiple spot networking function, a plurality of DS18B20 can be connected in parallel on the three unique lines, at most can only be in parallel 8, realize multi-point temperature measurement, if quantity is too much, can make the power supply brownout, thereby cause the unstable of signal transmission, working power: 3～5V/DC, in use without any need for peripheral cell, measurement result is with advantages such as 9～12 bit digital quantity mode transmission.
Control unit adopts the STC89C52 single-chip microcomputer, and STC89C52 is a kind of low power consumption, high-performance CMOS 8 8-digit microcontrollers, has 8K at system programmable Flash storage.On single-chip, have 8 dexterous bit CPUs and at system programmable Flash, so that STC89C52 provides high flexible, super effective solution for numerous embedded Control application systems.Has following standard feature: 8k bytes Flash, 512 byte RAM, 32 I/O mouth lines, WatchDog Timer, built-in 4KB EEPROM, MAX810 reset circuit, three 16 bit timing device/counters, 2 grades of interrupt structures of one 6 vector, full duplex serial port.STC89X52 can be down to the operation of 0Hz static logic in addition, supports 2 kinds of softwares can select energy-saving mode.Under the idle pulley, CPU quits work, and allows RAM, timer/counter, serial ports, interruption to work on.Under the power down protection mode, the RAM content is saved, and oscillator is frozen, and all work of single-chip microcomputer stop, until next the interruption or hardware reset.The highest operation frequency 35Mhz, 6T/12T is optional.
The DS18B20 digital temperature sensor is connected as shown in Figure 2 with the STC89C52 single-chip microcomputer, meets crystal oscillator X2 between the XTAL1 of STC89C52 and the XTAL2, and the DQ pin of DS18B20 is input to the P2.0 pin of STC89C52 and realizes data transmission.
Driver element adopts optocoupler solid-state relay (MOS output), and this relay is contactless, does not therefore have the wearing and tearing of contact, and be unlimited shockproof and spring working life; Shockproof, crash resistance attonity sound; Small volume (two kinds of encapsulation of straight cutting and paster are arranged), high reliability; The AC/DC dual-purpose switches at a high speed; Low discharge voltage; Low action current (saving current); Leakage current during low open circuit; Input is insulated fully with outlet chamber, can control various loads (relay, electric light, light emitting diode, heater, motor, electromagnetism suction tube etc.).
In the present embodiment, as shown in Figure 3, fan electromotor has four gears, is respectively: at a high speed, middling speed, low speed, stop.Dispose four optocoupler solid-state relay RL3, RL4, RL5, RL6, the P1.0 pin of single-chip microcomputer meets RL3 by amplifier Q3, and the P1.3 pin meets RL4 by amplifier Q4, and the P1.5 pin meets RL5 by amplifier Q5, the P1.7 pin meets RL6 by amplifier Q6, amplifier all adopts MPS3638, four optocoupler solid-state relay RL3, RL4, RL5, the output terminal of RL6 connect respectively described four gears.
The present invention has also comprised input unit and LCD display unit, and input unit is key-press input, finishes selection common to electric fan or the temperature control mode of operation, and the LCD display unit adopts 1602 liquid crystal, also is 1602 character mode lcds.It is a kind of dot matrix type Liquid Crystal Module that is used for specially showing letter, numeral, symbol etc. it have the dot character positions such as several 5X7 or 5X11 to form, each dot character position can show a character.1602 adopt 16 pin interfaces of standard, wherein: the 1st pin: VSS is power supply ground, the 2nd pin: VDD connects the 5V positive source, the 3rd pin: V0 is liquid crystal display contrast ratio adjustment end, contrast ratio is the most weak when connecing positive supply, contrast ratio the highest (can produce " ghost " when contrast ratio is too high, can adjust contrast ratio by the potentiometer of a 10K during use) during earthing power supply.The 4th pin: RS is that register is selected, selection instruction register when selecting data register, low level 0 during high level 1.The 5th pin: RW is reading writing signal line, carries out read operation during high level (1), carries out write operation during low level (0).The 6th pin: E (or EN) end is for enabling (enable) end.The 7th～14 pin: D0～D7 is 8 bi-directional data ends.The 15th～16 pin: empty pin or back of the body lamp power supply.The 15 instep light positive utmost points, 16 instep light negative poles.The characteristic of 1602LCD: 1.n+5V voltage, contrast ratio is adjustable; 2.n include the electricity that resets; Road 3.n provides various control commands, as: the several functions 4.n such as cls, character blinking, cursor flicker, demonstration displacement have 80 byte display data memory DDRAM; 5.n in have the character generator CGROM of the font of 192 5X7 dot matrix; 6.n8 individual can be by character generator CGRAM.1602LCD feature and the application of user-defined 5X7: little power consumption, volume is little, displaying contents is abundant, ultra-thin light and handy, be commonly used in pocket meter and the low power consumption application system.By coding, on LCD, will show two line number words, the first row shows and to represent three temperature ranges by four temperature values, the second row reality be Current Temperatures.When first button is pressed, then enter edit pattern while cursor and constantly glimmer, can set temperature parameter, second key is to increase temperature value, the 3rd key is to reduce temperature value, and the 4th key can make cursor beat between four numerical value, edits respectively four temperature values.After setting is finished, again press first button and just determined the temperature value that just now set.The different relay of control cooperates the wind speed that makes generation different when temperature is between the different temperature ranges.
Working procedure of the present utility model is as shown in Figure 4:
Behind the opening system, finish the LCD initialization, the Current Temperatures that demonstration is gathered by temperature detecting unit, whether control unit detects button 1 and is pressed, also namely detect whether enter into edit pattern, under edit pattern, finish every arrange accordingly after, temperature detecting unit carries out cycle detection, and testing result is transferred to control unit, establish threshold value and Current Temperatures in the control unit basis, export different optocoupler solid-state relays to, and then control different gears, realize reducing/raising rotating speed, perhaps disable motor.
Claims (2)
1. electric fan with function of temperature control, it is characterized in that be provided with temperature detecting unit for detection of room temperature at electric fan, the output of temperature detecting unit connects control unit, control unit connects driver element and finishes control to fan electromotor, and described driver element is the optocoupler solid-state relay.
2. described electric fan with function of temperature control according to claim 1, it is characterized in that, described control unit is single-chip microcomputer, described optocoupler solid-state relay has four, connect respectively four control output end mouths of single-chip microcomputer, fan electromotor has four gears, and the output terminal of four optocoupler solid-state relays connects respectively described four gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279833 CN202690489U (en) | 2012-06-14 | 2012-06-14 | Electric fan with temperature control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279833 CN202690489U (en) | 2012-06-14 | 2012-06-14 | Electric fan with temperature control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690489U true CN202690489U (en) | 2013-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220279833 Expired - Fee Related CN202690489U (en) | 2012-06-14 | 2012-06-14 | Electric fan with temperature control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690489U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644128A (en) * | 2013-11-26 | 2014-03-19 | 河南省佰腾电子科技有限公司 | Intelligent temperature control electric fan |
| CN105626564A (en) * | 2014-11-28 | 2016-06-01 | 鸿富锦精密工业(武汉)有限公司 | Control system and method for rotating speed of electric fan |
| CN108468653A (en) * | 2018-03-22 | 2018-08-31 | 常州同惠电子股份有限公司 | By the driving circuit that conventional fan improvement is intelligent fan |
-
2012
- 2012-06-14 CN CN 201220279833 patent/CN202690489U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644128A (en) * | 2013-11-26 | 2014-03-19 | 河南省佰腾电子科技有限公司 | Intelligent temperature control electric fan |
| CN105626564A (en) * | 2014-11-28 | 2016-06-01 | 鸿富锦精密工业(武汉)有限公司 | Control system and method for rotating speed of electric fan |
| CN108468653A (en) * | 2018-03-22 | 2018-08-31 | 常州同惠电子股份有限公司 | By the driving circuit that conventional fan improvement is intelligent fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130614 |