CN201884317U

CN201884317U - Electric fan power saving device

Info

Publication number: CN201884317U
Application number: CN2010206512034U
Authority: CN
Inventors: 何海参
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-10
Filing date: 2010-12-10
Publication date: 2011-06-29
Anticipated expiration: 2020-12-10

Abstract

The utility model relates to an electric fan power saving device, which comprises a microwave acquisition circuit, a temperature acquisition circuit and a singlechip control circuit, wherein a signal of the temperature acquisition circuit, which is converted by an analog/digital (A/D) conversion circuit, and a detection signal of the microwave acquisition circuit are transmitted to the singlechip control circuit; a drive electric fan circuit is controlled and outputted by the singlechip control circuit; the set on or off time is stored in a read only memory (ROM) memory circuit through a key switch; and the time of a perpetual calendar circuit is read by the singlechip control circuit. The set value of the ambient temperature and the activity position of a human body are detected by the device and a motor fan is automatically controlled; moreover, a power supply of the fan can be set to be turned off or on through a perpetual calendar to take the action of energy saving and fire prevention.

Description

The electric fan battery saving arrangement

Technical field

The utility model relates to a kind of battery saving arrangement, is specifically related to a kind of electric fan battery saving arrangement.

Background technique

The indoor electric fan of factory mainly is that working is opened, and come off duty and to close, but temperature is low sometimes, and also nobody goes control, and people often forget and close electric fan, causes waste of energy, when opening for a long time, will cause fire during motor overheating as electric fan.

The model utility content

The purpose of this utility model provides a kind of electric fan battery saving arrangement.

The technological scheme that the utility model adopted is such: a kind of electric fan battery saving arrangement, form by microwave Acquisition Circuit, temperature collection circuit and single chip machine controlling circuit, described temperature collection circuit through A signal after the D change-over circuit conversion and the testing signal of microwave Acquisition Circuit be delivered to single chip machine controlling circuit, drive the electric fan circuit by single chip machine controlling circuit control output, by key switch the set time that opens or closes is deposited in the ROM memory circuit, read the time of perpetual calendar circuit by single chip machine controlling circuit.

Described microwave Acquisition Circuit is made up of antenna TQ, RD627 doppler effect sensors U1 and U2 operational amplifier.

Described temperature collection circuit adopts normal temperature to have the thermistor RT of temperature coefficient for 510k Ω, and the temperature signal that thermistor RT gathers is transferred to operational amplifier U5.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: this device detects ambient temperature setting value and physical activity position, automatically control electrical motor fan, and can close or open fan power supply, reach energy-conservation anti-fire action by the perpetual calendar setting.

Description of drawings

Fig. 1 is a frame assumption diagram of the present utility model;

Fig. 2 is the utility model embodiment's circuit theory diagrams.

Embodiment

Further specify the utility model below in conjunction with the drawings and specific embodiments.

As shown in Figure 1 and Figure 2, a kind of electric fan battery saving arrangement, form with single chip machine controlling circuit 3 by microwave Acquisition Circuit 1, temperature collection circuit 2, described temperature collection circuit 2 through A signal after D change-over circuit 21 conversion and the testing signal of microwave Acquisition Circuit 1 be delivered to single chip machine controlling circuit 3, drive electric fan circuit 31 by single chip machine controlling circuit 3 control outputs, by button K1, K2, K3 the set time that opens or closes is deposited in the ROM memory circuit 33, read the time of perpetual calendar circuit 32 by single chip machine controlling circuit 3.

Described microwave Acquisition Circuit 1 is made up of antenna TQ, RD627 doppler effect sensors U1 and U2 operational amplifier, antenna TQ is connected to the 1st, 2 pin of RD627 doppler effect sensors U1, RD627 doppler effect sensors U1 output signal is after operational amplifier U2 amplifies, by the 1st pin output voltage signal of operational amplifier U2 the 32nd pin I/O end to single-chip microcomputer IC1, when physical activity, the 32nd pin I/O end of single-chip microcomputer IC1 is high potential signal, when human body during not at monitoring range, it is output as low level signal.

Described temperature collection circuit 2 adopts normal temperature to have the thermistor RT of temperature coefficient for 510k Ω, the temperature signal that thermistor RT gathers is transferred to operational amplifier U5, regulate resistance R 5 and can change outdoor temperature collection signal value, the temperature signal that outdoor temperature is gathered by RT is input to the 3rd pin of operational amplifier U5, after operational amplifier U5 internal arithmetic is amplified, export its amplifying signal by its 6th pin, the resistance that changes resistance R 6 can change the magnification factor of operational amplifier U5, this signal is connected to the 2nd pin of A/D change-over circuit U4, by the 5th of A/D change-over circuit U4,6,7 with single-chip microcomputer IC1 the 35th, 36,37 pin connect to form data A/D transfer circuit, after data transfer, be input to the I/O port of single-chip microcomputer IC1, when outside air temperature during more than or equal to 28 ℃, A/D change-over circuit U4 collects the signal that A1 orders and input to IC1 after the A/D conversion.

When detecting its 32nd pin respectively and be in the data of signal after the A/D conversion that low potential and A1 order and reach single-chip microcomputer IC1 internal processes control judgment value simultaneously by single-chip microcomputer IC1, the comprehensive judgement of single-chip microcomputer IC1 should start the electric fan program, the 6th pin output high level signal by single-chip microcomputer IC1, through resistance R 6 current limlitings, make triode T1 conducting, the relay J adhesive, switch J1-1 transfers normally closed point to by often opening, and fan must be established the beginning by cable and rotate.

When pushing button K1, single-chip microcomputer IC1 is to LCD display circuit IC2 transmitting time modify instruction, LCD display circuit IC2 shows the current time, by the K2 that pushes button, K3 revises the current disconnected fan power supply that opens or closes is set, the perpetual calendar datel circuit of forming by single-chip microcomputer IC1 and IS1302 clock chip IC4, single-chip microcomputer IC1 reads the DC1302 clock chip IC4 current time through the internal processes judgement, form serial communication circuit by single-chip microcomputer IC1 and 24C02 storage chip IC3, data information is deposited into the ROM database, by button K1, K2, K3 deposits the set time of opening or closing in the ROM data of 24C02 storage chip IC3 in.When the time command in the ROM data of the current time of reading DC1302 clock chip IC4 by single-chip microcomputer IC1 and 24C02 storage chip IC3 is consistent, through single-chip microcomputer IC1 internal processes control output, the 6th pin output high-low level signal by single-chip microcomputer IC1, control relay J adhesive or release, thereby the control fan opens/stops, to needs time switch electric fan, realize the fire prevention purpose of energy saving by manually.

More than show and described basic principle of the present utility model and major character and advantage thereof; the technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. electric fan battery saving arrangement, it is characterized in that: by microwave Acquisition Circuit (1), temperature collection circuit (2) is formed with single chip machine controlling circuit (3), described temperature collection circuit (2) through A signal after D change-over circuit (21) conversion and the testing signal of microwave Acquisition Circuit (1) be delivered to single chip machine controlling circuit (3), drive electric fan circuit (31) by single chip machine controlling circuit (3) control output, by key switch the set time that opens or closes is deposited in the ROM memory circuit (33), read the time of perpetual calendar circuit (32) by single chip machine controlling circuit (3).

2. a kind of electric fan battery saving arrangement according to claim 1 is characterized in that: described microwave Acquisition Circuit (1) is made up of antenna TQ, RD627 doppler effect sensors U1 and U2 operational amplifier.

3. a kind of electric fan battery saving arrangement according to claim 1 is characterized in that: described temperature collection circuit (2) adopts normal temperature to have the thermistor RT of temperature coefficient for 510k Ω, and the temperature signal that thermistor RT gathers is transferred to operational amplifier U5.