CN2202272Y

CN2202272Y - Energy-saving temperature controller

Info

Publication number: CN2202272Y
Application number: CN94224683U
Authority: CN
Inventors: 夏志石; 罗自平; 张永峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-03
Filing date: 1994-08-03
Publication date: 1995-06-28
Anticipated expiration: 2004-08-03

Abstract

The utility model relates to an energy-saving temperature controller for scavenger fans, which is composed of an indoor temperature probe, an outdoor temperature probe and a comparing and controlling switch circuit and is connected with a scavenger fan in series for use. The energy-saving temperature controller can automatically open or close the scavenger fan for forming a possible suitable temperature environment indoors according to the different variation conditions of indoor air temperature and outdoor temperature. The utility model can largely shorten the working time of an air conditioner and reduce energy consumption under the conditions that the utility model is used by matching the air conditioner; a proper indoor temperature is kept.

Description

Energy-saving temperature controller

The utility model relates to a kind of energy efficiency temperature controller that is used for ventilation fan.

In the house that does not have air cooling and firing equipment, because the thermal inertia in house, such situation occur through regular meeting summer: the time-division outside air temperature has descended many at dusk; indoorly still sultryly can't bear; the noon in winter, outdoor quite warm, indoor still ice-cold.In both cases, common way is that door and window is opened, utilize flowing of air to reduce or the rising indoor temperature, be equipped with under the condition of ventilation fan, people can come heat exchange inside and outside the accelerating chamber by the forced ventilation of ventilation fan, make the indoor people of reaching be suitable for the temperature of living and working quickly.For this reason, people must judge, and it is the most suitable to open and close ventilation fan under which type of indoor and outdoor temperature condition.Yet, when possibility people of the only moment of switch ventilation fan do not go home as yet or people sleep the late into the night just.

The purpose of this utility model is to develop ventilation fan energy efficiency temperature controller, can automatically open or close ventilation fan according to the different Changing Patterns of indoor and outdoor temperature, using under the situation of ventilation fan separately, makes the indoor proper temperature environment as far as possible that has; Being used with air conditioner and keeping shortening the air conditioner working time as far as possible under the condition of suitable indoor temperature, to cut down the consumption of energy.

In order to achieve the above object, this energy-conservation temperature controller adopts by two temp probes in indoor and outdoor, forms with comparing the gauge tap circuit, and is connected in series use with ventilation fan.

Fig. 1 is the circuit theory diagrams of energy efficiency temperature controller.

Among Fig. 1, Dr is for measuring the probe (diode) that indoor temperature is used, and Da is for measuring the probe (diode) that outdoor temperature is used, R ₆For setting the potentiometer that the control temperature is used, the negative terminal of Dr, Da and R ₆One end common ground, their other ends meet dc source Vcc respectively after resistance R 14R2, R15R3 and R13R1 serial connection, the tie point of R2 and R14 is connected the negative input end of comparator IC3, and connect the positive input terminal of comparator IC1, IC2 respectively through R5, R6; The tie point of R15 and R3 connects the positive input terminal of IC3 through R7; The tie point of R3 and R4 connects the negative input end of IC1; The tie point of R1 and R13 links to each other with the negative input end of IC2; Three voltage comparator ics 1, IC2, IC3 are connected into positive feedback mode; The automatic intensification shelves 2 of four toggle switch K of output termination of IC1, the negative input end of the output termination IC4 of IC2, simultaneously connect power Vcc through R16, another road is connected in series the work shelves 4 that luminous tube D2 astern connects K switch oppositely, again through diode D3, the intermediate connection point of D3, D2 connects the output of IC1, the positive input terminal of IC4 is through R11 ground connection, and another road connects power Vcc through R12; The automatic cooling shelves 3 of the output termination K switch of IC3, IC4; Another road of IC4 output connects the work shelves 4 of K switch through luminous tube D1 forward; Ventilation fan M with connect civil power after bidirectional triode thyristor D connects, its tie point connects the output of photo-coupler OI through current-limiting resistance, the control grid of bidirectional triode thyristor connects another output of OI, the work shelves 4 of the input termination switch K of photo-coupler OI.Record the voltage signal of indoor temperature Tr and outdoor temperature Ta correspondence by probe Dr and Da, produce and the corresponding voltage signal of Ta-△ T at the negative input end of IC1, at generation of IC3 positive input terminal and the corresponding voltage signal of Ta+ △ T.Close shelves 1 the time when four toggle switch K are in, ventilation fan is not worked.When toggle switch K is in automatic cooling shelves 3, if indoor temperature is higher than R _SThe temperature that sets, and indoor temperature is when above than the high △ T of outdoor temperature, ventilation fan work utilizes and outdoorly reduces indoor temperature than cold air.If can not satisfy above-mentioned these two conditions simultaneously, ventilation fan quits work.When toggle switch K is in automatic intensification shelves 2, if indoor temperature is lower than design temperature and outdoor temperature when above than the high △ T of indoor temperature, ventilation fan work utilizes the air of outdoor heat to improve indoor temperature.Equally, if can not satisfy above-mentioned this two condition simultaneously, just ventilation fan quits work.When toggle switch K was in work shelves 4, no matter the indoor and outdoor temperature how, ventilation fan was constantly worked.Use at the same time under the situation of ventilation fan of air conditioner and this device control, if in summer, then the toggle switch K with this energy-conservation temperature controller places on the automatic cooling shelves 3, design temperature is set in lower temperature (for example 17 ℃), the functional switch of air conditioner is arranged on the cooling position, design temperature is set in higher temperature (for example 25 ℃), like this, at outside air temperature than indoor height, and when indoor temperature has reached the design temperature of air conditioner again, the cooling system work of air conditioner guarantees that indoor temperature is not higher than the design temperature of air conditioner.When outside air temperature is lower than that indoor temperature deducts △ T or when lower, air conditioner is not worked and only by ventilation fan work, utilize outdoor colder air to make indoor further cooling, like this, shorten the service time of air conditioner greatly, saved electric energy, particularly the bigger area of day and night temperature, when relatively good again, use the energy-saving effect of energy efficiency temperature controller particularly remarkable as the heat-insulating property in house.

When specifically implementing the utility model, voltage comparator ic 1～4 can adopt LM339, and temp probe Dr selects forward voltage for use with Da---two diodes that temperature characterisitic is identical, and photo-coupler OI selects MOC30222 for use, and dc source Vcc selects the 8V D.C. regulated power supply for use.

Claims

1, a kind of energy efficiency temperature controller is characterized in that being connected to of circuit: survey indoor temperature probe Dr, survey the negative terminal of outdoor temperature probe Da and temperature potentiometer R is set

An end common ground, their other end meets dc source Vcc respectively after resistance R 14R2, R15R3 and R13R1 serial connection, the tie point of R2 and R14 is connected the negative input end of comparator IC3, and respectively through the positive input terminal of R5, R6 connection comparator IC1, IC2; The tie point of R15 and R3 is connected the positive input terminal of IC3 through R7; The tie point of R3 and R4 connects the IC1 negative input end; The tie point of R1 and R13 links to each other with the negative input end of IC2; Voltage comparator ic 1, IC2, IC3 are connected into positive feedback mode; The automatic intensification shelves 2 of four toggle switch K of IC1 output termination; The negative input end of the output termination IC4 of IC2 connects power Vcc through R16 simultaneously, and another road is connected in series the work shelves 4 that luminous tube D2 astern connects toggle switch K oppositely, again through diode D3; The intermediate connection point of D3, D2 connects the output of IC1; The positive input terminal of IC4 is through R11 ground connection, and another road connects power Vcc through R12; The automatic cooling shelves 3 of the output termination K switch of IC3, IC4; Another road of IC4 output connects the work shelves 4 of K switch through luminous tube D1 forward; Ventilation fan M with connect civil power after bidirectional triode thyristor is connected, its tie point connects another output of photo-coupler OI through current-limiting resistance; The control grid of bidirectional triode thyristor D connects another output of OI; The work shelves 4 of the input termination switch K of photo-coupler OI.

2, a kind of energy efficiency temperature controller as claimed in claim 1 is characterized in that described voltage comparator ic 1～4 can select LM339 for use, and Dr selects positive voltage for use with Da---two silicon diodes that temperature characterisitic is identical, photo-coupler OI selects MOC3022 for use.