CN108775766A - Temperature-control circuit, refrigerating plant and refrigerator - Google Patents
Temperature-control circuit, refrigerating plant and refrigerator Download PDFInfo
- Publication number
- CN108775766A CN108775766A CN201810661450.3A CN201810661450A CN108775766A CN 108775766 A CN108775766 A CN 108775766A CN 201810661450 A CN201810661450 A CN 201810661450A CN 108775766 A CN108775766 A CN 108775766A
- Authority
- CN
- China
- Prior art keywords
- temperature
- connect
- resistance
- module
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
- F25D27/005—Lighting arrangements combined with control means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/10—Sensors measuring the temperature of the evaporator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of temperature-control circuits, including non-isolated power supply module, control process module, temperature collecting module, relay, relay drive unit and function button module；The first end of the switch of relay is used for connect compressor for connecting exchange firewire, second end, and relay drive unit includes refrigeration control signal input part, feeder ear and refrigeration driving end；The power input of relay coil is connect with feeder ear, and the current output terminal of relay coil is connect with refrigeration driving end；Non-isolated power supply module includes the first power output end and second source output end；First power output end, temperature collecting module, function button module and refrigeration control signal input part are connect with control process module, and feeder ear is connect with second source output end.Correspondingly, the invention also discloses a kind of refrigerating plant and refrigerators.The present invention can improve temperature controlled accuracy, reduce temperature fluctuation range in refrigerator, and simple in structure, at low cost.
Description
Technical field
The present invention relates to electronic technology field more particularly to temperature-control circuit, refrigerating plant and refrigerators.
Background technology
With the raising of people's standard of living, refrigerator has become essential household electrical appliance in people's daily life.
Traditional mechanical refrigerator controls using mechanical thermostat and adjusts the temperature of refrigerator, with low content of technology, not to temperature control
Enough accurate, temperature is controlled in a larger range；After mechanical refrigerator needs temperature rise to bigger difference, control
Device processed can just be again started up compressor operating, and temperature fluctuation is relatively large, be adversely affected to food preservation and energy consumption.In addition
Due to the self structure of mechanical thermostat, leading to refrigerator, there is also temperature drift, the disadvantages such as error is big, does not shut down and is not switched on
End.Although computer refrigerator in the market overcomes disadvantages mentioned above, function is more, but corresponding circuit structure is complex, cost
It is higher.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of temperature-control circuit, using the temperature-control circuit
Refrigerating plant and refrigerator using the refrigerating plant, can improve temperature controlled accuracy, reduce temperature fluctuation in refrigerator
Range, and it is simple in structure, it is at low cost.
In order to solve the above technical problem, the present invention provides a kind of temperature-control circuit, including non-isolated power supply module,
Control process module, the temperature collecting module for acquiring refrigerator internal and external environment temperature, relay, relay drive unit and work(
It can key-press module；
The first end of the switch of the relay is used for for connecting exchange firewire, the second end of the switch of the relay
Connect compressor, the relay drive unit include refrigeration control signal input part, feeder ear and refrigeration driving end；
The power input of the relay coil is connect with the feeder ear, the current output terminal of the relay coil
It is connect with refrigeration driving end；
The non-isolated power supply module include be connected to exchange firewire power end, be connected to AC neutral line ground terminal,
First power output end and second source output end；
First power output end, the temperature collecting module, the function button module and refrigeration control letter
Number input terminal is connect with the control process module, and the feeder ear of the relay drive unit is exported with the second source
End connection.
Further, the relay drive unit includes first resistor, second resistance, first switch pipe and the one or two pole
Pipe；
The first end of the first resistor is connect with the refrigeration control signal input part, the second end of the first resistor
It is connect with the control terminal of the first switch pipe, the control terminal of the first switch pipe is grounded by the second resistance, described
The second end of first switch pipe is grounded, and the first end of the first switch pipe is connect with the anode of first diode, described
The cathode of first diode is connect with the feeder ear, and the anode of first diode is also connect with refrigeration driving end.
Further, the temperature-control circuit further includes lighting module, and the lighting module includes LED light string and LED
Driving unit, the LED drive unit include illumination control signal input terminal and illumination driving end；
The LED light string includes the LED light that positive input terminal, negative input end and M are connected in series with；
The positive input terminal of the LED light string is connect with the second source output end, the negative input end of the LED light string with
The illumination driving end connection of the LED drive unit, illumination control signal input terminal and the control of the LED drive unit
Processing module connects.
Further, the LED light string further includes the 4th resistance,
The LED light string is connect by the 4th resistance with the positive input terminal of the LED light string；
The LED drive unit includes the 5th resistance, the 6th resistance and second switch pipe, the first end of the 5th resistance
It is connect with the illumination control signal input terminal, the second end of the 5th resistance connects with the control terminal of the second switch pipe
It connects, by the 6th resistance eutral grounding, the second end of the second switch pipe is grounded the control terminal of the second switch pipe, described
The first end of second switch pipe is connect with illumination driving end.
Further, the temperature-control circuit further includes compensation heat driven module, the compensation heat driven module
Including thermal control signals input terminal, triode ac switch, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance,
Two capacitances, third switching tube and the heat driven end for driving compensating heater；
The thermal control signals input terminal is connect with the control process module, the first end of the 7th resistance and institute
State the connection of thermal control signals input terminal, the second end of the 7th resistance by the 8th resistance eutral grounding, the 7th resistance
Second end is connect with the control terminal of the third switching tube, the first end ground connection of the third switching tube, the third switching tube
Second end AC neutral line is connected to by the 9th resistance and the tenth resistance, second capacitance with the tenth resistance simultaneously
Connection connection, the first end of second capacitance connect with the control terminal of the triode ac switch, and the of second capacitance
Two ends are connect with the first end of the triode ac switch, and the second end of the triode ac switch is driven with the heating
Moved end connects.
Further, the temperature-control circuit further includes wire jumper selecting module；
The wire jumper selecting module includes power input, eleventh resistor, twelfth resistor and N number of thirteenth resistor, N
Root wire jumper and selection signal output end；
N number of thirteenth resistor is connected in series with, and the N roots wire jumper is corresponded with N number of thirteenth resistor respectively
It is connected in parallel, the power input is connect with the first end of the N number of thirteenth resistor being connected in series with, described to be connected in series with
The second end of N number of thirteenth resistor connect with the first end of the twelfth resistor, the second termination of the twelfth resistor
Ground, the first end of the twelfth resistor are connect with the first end of the eleventh resistor, the second end of the eleventh resistor
It is connect with the selection signal output end.
Further, the temperature-control circuit further includes indicating module, and the indicating module includes indicator light and instruction
Lamp driving unit；
The indicator light is connect with the indicator light driving unit, the indicator light driving unit and the control process mould
Block connects.
Further, the temperature collecting module includes the identical temperature collecting cell of three structures, the temperature acquisition
Unit includes the temperature sensor for collecting temperature signal, the 14th resistance, the 15th resistance, third capacitance and temperature signal
Output end；
The temperature sensor is connect with the first end of the 14th resistance, and the second end of the 14th resistance passes through
The second end of second capacity earth, the 14th resistance is connect with the first end of the 15th resistance, and the described tenth
The second end of five resistance is connect with first power output end, and the first end of the 15th resistance and the temperature signal are defeated
Outlet connects, and the temperature signal output end is connect with the control process module.
Correspondingly, the present invention also provides a kind of refrigerating plant, including temperature-control circuit, compressor, condenser, capillary
Pipe and evaporator；
The temperature-control circuit is foregoing temperature-control circuit；
The second end of the switch of the relay of the temperature-control circuit is connect with the compressor, the compressor
It is connect with the condenser, the condenser is connect with the capillary, and the capillary is connect with the evaporator.
The present invention also provides a kind of refrigerator, including babinet, refrigerating plant is equipped in the babinet；
The refrigerating plant is foregoing refrigerating plant.
Temperature-control circuit provided by the invention, using the temperature-control circuit refrigerating plant and use the refrigerating plant
Refrigerator, temperature collecting module acquires the temperature of refrigerator internal and external environment and collected temperature signal is sent at control in real time
Module is managed, temperature gear, the temperature that control process module receive capabilities key-press module is sent is arranged by function button module in user
Setting signal is spent, control process module is judged according to temperature setting signal and collected temperature signal, when collected
When temperature signal rises to the turn-on temperature threshold value of corresponding temperature gear, control process module sends to relay drive unit and makes
Cold control signal, relay drive unit is by driving end that relay switch is driven to be closed, to drive compressor to work；
When the temperature of acquisition is reduced to the shutdown temperature threshold value of corresponding temperature gear, relay drive unit by drive end driving after
Electric appliance disconnects, and is stopped to control compressor, improves temperature controlled accuracy, reduces temperature fluctuation model in refrigerator
It encloses, and simple in structure, it is at low cost.
Description of the drawings
Fig. 1 is a kind of circuit block diagram of one embodiment of temperature-control circuit provided by the invention；
Fig. 2 is that a kind of circuit of one embodiment of the relay drive unit of temperature-control circuit provided by the invention is former
Reason figure；
Fig. 3 is a kind of circuit diagram of one embodiment of the lighting module of temperature-control circuit provided by the invention；
Fig. 4 is a kind of circuit of one embodiment of the temperature-compensating heating module of temperature-control circuit provided by the invention
Schematic diagram；
Fig. 5 is a kind of circuit theory of one embodiment of the wire jumper selecting module of temperature-control circuit provided by the invention
Figure；
Fig. 6 is a kind of circuit theory of one embodiment of the temperature collecting module of temperature-control circuit provided by the invention
Figure；
Fig. 7 is a kind of structural schematic diagram of one embodiment of refrigerating plant provided by the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
It is a kind of circuit block diagram of one embodiment of temperature-control circuit provided by the invention referring to Fig. 1.
The embodiment of the present invention provides a kind of temperature-control circuit, including non-isolated power supply module 1, control process module 2, use
In temperature collecting module 6, relay RL, relay drive unit 3 and the function button module of acquisition refrigerator internal and external environment temperature
4；
The first end of the switch of relay RL is for connecting exchange firewire L, and the second end of the switch of relay RL is for connecting
Compressor is connect, relay drive unit 3 includes refrigeration control signal input part C I, feeder ear Vi2 and refrigeration driving end Dr；
The power input of relay coil is connect with feeder ear Vi 2, and current output terminal and the refrigeration of relay coil are driven
Moved end Dr connections；
Non-isolated power supply module 1 include be connected to exchange firewire power end VI, be connected to AC neutral line ground terminal GN,
First power output end Vo1 and second source output end vo 2；
First power output end Vo1, temperature collecting module 6, function button module 4 and refrigeration control signal input part C I
It is connect with control process module 2, the feeder ear Vi2 of relay drive unit 3 is connect with second source output end vo 2.
In the specific implementation, the temperature of acquisition refrigerator internal and external environment and by collected temperature in real time of temperature collecting module 6
Signal is sent to control process module 2, and temperature gear is arranged by function button module 4 in user, and control process module 2 receives work(
The temperature setting signal that energy key-press module 4 is sent, control process module 2 is according to temperature setting signal and collected temperature signal
Judged, when collected temperature signal rises to the turn-on temperature threshold value of corresponding temperature gear, control process module 2 to
Relay drive unit 3 sends refrigeration control signal, and relay drive unit 3 is by driving end Dr that relay RL switches is driven to close
It closes, to drive compressor to work；When the temperature of acquisition is reduced to the shutdown temperature threshold value of corresponding temperature gear, relay
Device driving unit 3 is stopped to control compressor by driving end Dr that relay RL switches is driven to disconnect, improves temperature
The accuracy of control reduces temperature fluctuation range in refrigerator, and simple in structure, at low cost.
It should be noted that temperature-control circuit uses non-isolated power supply module 1, reduces cost and make circuit structure more
Step up to gather.
Further, temperature-control circuit further includes indicating module 9, and indicating module 9 includes that indicator light 901 and indicator light drive
Moving cell 902；
Indicator light 901 is connect with indicator light driving unit 902, and indicator light driving unit 902 connects with control process module 2
It connects.
It should be noted that indicator light 901 can have multiple, indicator light 901 can indicate temperature gear signal, can also
Indicate refrigerator work status signal etc..For example, 7 LED lights can be set, 5 LED indications for being used to indicate temperature gear
Lamp, 1 is used to indicate the LED light of quick-frozen state, a LED light for being used to indicate intelligent mode.
It is a kind of one embodiment of the relay drive unit of temperature-control circuit provided by the invention referring to Fig. 2
Circuit diagram.As shown in Fig. 2, relay drive unit 3 includes first resistor R25, second resistance R27, first switch pipe Q4
With the first diode D5；
The first end of first resistor R25 is connect with refrigeration control signal input part CI, the second end of first resistor R25 and the
The control terminal of one switching tube Q4 connects, and the control terminal of first switch pipe Q4 is grounded by second resistance R27, first switch pipe Q4's
Second end is grounded, and the anode of the first end of first switch pipe Q4 and the first diode D5 are connect, the cathode of the first diode D5 and
The anode of feeder ear Vi2 connections, the first diode D5 is also connect with refrigeration driving end Dr1.
The course of work of relay drive unit 3 is as follows：When refrigeration control signal input part C I receive high level signal
When, conducting voltage is provided for first switch pipe Q4 by first resistor R25 and second resistance R27, first switch pipe Q4 is connected, after
There is electric current to pass through in electric appliance RY coils, relay RL switches are closed, and are provided operating voltage for compressor, are driven compressor operating.
Preferably, RC absorptive units can also be set, RC absorptive units include 3rd resistor R9 and the first capacitance CX2, and
The first end of one capacitance CX2 is connect with the second end of the switch of relay RL, and the second end of the first capacitance CX2 passes through 3rd resistor
R9 is connected to AC neutral line.RC absorptive units play the role of effectively inhibiting interference.
It is that a kind of circuit of one embodiment of the lighting module 7 of temperature-control circuit provided by the invention is former referring to Fig. 3
Reason figure.As shown in figures 1 and 3, temperature-control circuit further includes lighting module 7, and lighting module 7 includes LED light string 701 and LED
Driving unit 702, LED drive unit 702 include illumination control signal input terminal Cr1 and illumination driving end Dr2；
LED light string 701 includes b and M positive input terminal a, negative input end LED light (LED81-LED8M) being connected in series with；
The positive input terminal a of LED light string 701 is connect with second source output end vo 2, the negative input end b of LED light string 701 with
The illumination of LED drive unit 702 drives end Dr2 connections, illumination control signal input terminal Cr1 and the control of LED drive unit 702
Processing module 2 connects.
It should be noted that or the illumination of current refrigerator is using incandescent lighting or uses LED lamp panel or bulb lamp
Illumination, is all provided separately with temperature controller, and illumination and temperature control are two independent components, empty in material cost and installation
Between on cause certain waste.The present embodiment can save the materials such as additional connecting line, lamp holder and the mounting box of headlamp, drop
Low Material Cost and manually installed cost, also save installation space.
Further, LED light string 701 further includes the 4th resistance R37；
LED light string 701 is connect by the 4th resistance R37 with the positive input terminal a of LED light string 701；
LED drive unit 702 includes the 5th resistance R45, the 6th resistance R46 and second switch pipe Q7, the 5th resistance R45's
First end is connect with illumination control signal input terminal Cr1, and the second end of the 5th resistance R45 connects with the control terminal of second switch pipe Q7
It connects, the control terminal of second switch pipe Q7 passes through the 6th resistance R46 ground connection, the second end ground connection of second switch pipe Q7, second switch
The first end of pipe Q7 is connect with illumination driving end Dr2.
The course of work of LED drive unit 702 is as follows：When illumination control signal input terminal Cr1 receives high level signal,
By the 5th resistance R45 and the 6th resistance R46 conducting voltage, the Q7 conductings of second switch pipe, LED strings are provided for second switch pipe Q7
701 conductings shine.
It is a kind of one embodiment of the temperature-compensating heating module 5 of temperature-control circuit provided by the invention referring to Fig. 4
Circuit diagram.As shown in Figure 1 and Figure 4, temperature-control circuit further includes compensation heat driven module 5, compensates heat driven
Module 5 includes thermal control signals input terminal Cr2, triode ac switch TR1, the 7th resistance R33, the 8th resistance R31, the 9th
Resistance R30, the tenth resistance R29, the second capacitance C7, third switching tube Q5 and the heat driven end for driving compensating heater
Dr3；
Thermal control signals input terminal Cr2 is connect with control process module 2, and first end and the heating of the 7th resistance R33 are controlled
The second end of signal input part Cr2 connections processed, the 7th resistance R33 is grounded by the 8th resistance R31, and the second of the 7th resistance R33
End is connect with the control terminal of third switching tube Q5, the first end ground connection of third switching tube Q5, and the second end of third switching tube Q5 is logical
It crossing the 9th resistance R30 and the tenth resistance R29 and is connected to AC neutral line N, the second capacitance C7 and the tenth resistance R29 is connected in parallel, the
The first end of two capacitance C7 is connect with the control terminal of triode ac switch TR1, the second end and three terminal bidirectional of the second capacitance C7
The first end of silicon-controlled TR1 connects, and the second end of triode ac switch TR1 is connect with heat driven end Dr3.
It should be noted that compensating heater is just to work at relatively low ambient temperatures, due to the refrigerating chamber of refrigerator
Temperature is low and causes temperature that turn-on temperature threshold value is not achieved, and compressor is caused not work, and freezer temperature rises, and compensation at this time adds
Hot device work heats refrigerating chamber and causes temperature rise to turn-on temperature threshold value, and press normal work, holding freezing chamber is in low temperature shape
State.Wherein, when refrigerator is in quick-frozen pattern, control process module 2 sends thermal control signals to compensation heating module 5, drives
Dynamic compensating heater work, increases temperature of refrigerating chamber, when temperature of refrigerating chamber is higher than turn-on temperature threshold value, compressor starts work
Make, control process module 2 by driving compensating heater and compressor operating in turn, to reach quick-frozen purpose.
It is a kind of electricity of one embodiment of the wire jumper selecting module of temperature-control circuit provided by the invention referring to Fig. 5
Road schematic diagram.As shown in Figure 1 and Figure 5, temperature-control circuit further includes wire jumper selecting module 8；
Wire jumper selecting module 8 includes power input Vi 3, eleventh resistor R69, twelfth resistor R50 and the N number of tenth
Three resistance (R41-R4N), N roots wire jumper (A1-AN) and selection signal output end Cn1；
N number of thirteenth resistor (R41-R4N) is connected in series with, N roots wire jumper (A1-AN) respectively with N number of thirteenth resistor (R41-
R4N it) corresponds and is connected in parallel, the first end of power input Vi 3 and the N number of thirteenth resistor (R41-R4N) being connected in series with
Connection, the second end for the N number of thirteenth resistor (R41-R4N) being connected in series with are connect with the first end of twelfth resistor R50, and the tenth
The second end of two resistance R50 is grounded, and the first end of twelfth resistor R50 is connect with the first end of eleventh resistor R69, and the 11st
The second end of resistance R69 is connect with selection signal output end Cn1.
It should be noted that state of the wire jumper selecting module 8 by setting wire jumper (A1-AN), sends out to control process module 2
Different selection signals, control process module 2 is sent to select corresponding driver driving pressure according to the selection signal received
Contract motor-driven work, so as to drive different compressors under different wire jumper states, it is not necessary to selected exclusively for compressor
Matched driver reduces cost, simple and convenient.For example, 3 wire jumpers can drive the pressure of 8 types simultaneously
Contracting machine.Wherein, setting wire jumper state is that wire jumper (A1-AN) is parallel-connected to corresponding thirteenth resistor (R41-R4N)
Both ends, or wire jumper (A1-AN) is removed from the both ends of corresponding thirteenth resistor (R41-R4N).
It is a kind of electricity of one embodiment of the temperature collecting module of temperature-control circuit provided by the invention referring to Fig. 6
Road schematic diagram.As shown in fig. 6, temperature collecting module 6 includes the identical temperature collecting cell 601 of three structures, temperature acquisition list
Member 601 includes the temperature sensor SNR for collecting temperature signal, the 14th resistance R10, the 15th resistance RS, third capacitance
C5 and temperature signal output end (cn21-cn23)；
Temperature sensor SNR is connect with the first end of the 14th resistance R10, and the second end of the 14th resistance R10 passes through
Two capacitance C5 ground connection, the second end of the 14th resistance R10 are connect with the first end of the 15th resistance RS, and the of the 15th resistance RS
Two ends are connect with the first power output end Vo1, and first end and the temperature signal output end (cn21-cn23) of the 15th resistance RS connect
It connects, temperature signal output end (cn21-cn23) is connect with control process module 2.
The course of work of temperature collecting module 6 is as follows：Three temperature sensor SNR are respectively used to acquisition evaporator temperature
Degree, temperature of refrigerating chamber and refrigerator external environment temperature.Collected evaporator temperature signal is refrigerated room temperature by temperature collecting module 6
Degree signal and refrigerator external environment temperature signal are sent to control process module 2, and control process module 2 is according to the temperature signal system
Make the corresponding startup-shutdown temperature list of each temperature gear comprising the corresponding turn-on temperature threshold value of each temperature gear and shutdown temperature
Threshold value.
It is a kind of structural schematic diagram of one embodiment of refrigerating plant provided by the invention referring to Fig. 7.
The present invention provides a kind of refrigerating plant, including temperature-control circuit, compressor 21, condenser 22,23 and of capillary
Evaporator 24；
Temperature-control circuit is temperature-control circuit as in the foregoing embodiment；
The second end of the switch of the relay RL of temperature-control circuit is connect with compressor 21, compressor 21 and condenser 22
Connection, condenser 22 are connect with capillary 23, and capillary 23 is connect with evaporator 24.
The present invention also provides a kind of refrigerator, including babinet, refrigerating plant is equipped in babinet；
Refrigerating plant is the refrigerating plant such as previous embodiment.
In the specific implementation, the temperature collecting module 6 in temperature-control circuit acquires the temperature of refrigerator internal and external environment in real time
And collected temperature signal is sent to control process module 2, temperature gear, control is arranged by function button module 4 in user
The temperature setting signal that 2 receive capabilities key-press module 4 of processing module processed is sent, control process module 2 is according to temperature setting signal
Judged with collected temperature signal, when collected temperature signal rises to the turn-on temperature threshold value of corresponding temperature gear
When, control process module 2 sends refrigeration control signal to relay drive unit 3, and relay drive unit 3 is by driving end Dr
Relay RL switch is driven to be closed, to drive compressor to work, low temperature that compressor 21 will be cooled to by evaporator 24
Low-pressure gaseous refrigerant is compressed into high temperature and high pressure gaseous refrigerant, the high temperature and pressure gas that condenser 22 will be compressed by compressor 21
The pressure of state refrigerant is cooled to cryogenic high pressure liquid refrigerant, and capillary 23 is by the liquid system of 22 liquefied cryogenic high pressure of condenser
For cryogen reducing pressure by regulating flow at low-temp low-pressure atomized refrigerant, refrigerant is evaporated to rapidly steam after entering evaporator 24, to reach
The purpose of refrigeration；When the temperature of acquisition is reduced to the shutdown temperature threshold value of corresponding temperature gear, relay drive unit 3 passes through
It drives Dr driving relay RL switches in end to disconnect, is stopped to control compressor, improves temperature controlled accuracy, drop
Temperature fluctuation range in low refrigerator, and it is simple in structure, it is at low cost.
Temperature-control circuit provided by the invention, using the temperature-control circuit refrigerating plant and use the refrigerating plant
Refrigerator, temperature collecting module acquires the temperature of refrigerator internal and external environment and collected temperature signal is sent at control in real time
Module is managed, temperature gear, the temperature that control process module receive capabilities key-press module is sent is arranged by function button module in user
Setting signal is spent, control process module is judged according to temperature setting signal and collected temperature signal, when collected
When temperature signal rises to the turn-on temperature threshold value of corresponding temperature gear, control process module sends to relay drive unit and makes
Cold control signal, relay drive unit is by driving end that relay switch is driven to be closed, to drive compressor to work；
When the temperature of acquisition is reduced to the shutdown temperature threshold value of corresponding temperature gear, relay drive unit by drive end driving after
Electric appliance disconnects, and is stopped to control compressor, improves temperature controlled accuracy, reduces temperature fluctuation model in refrigerator
It encloses, and simple in structure, it is at low cost.
It is the preferred embodiment of the present invention above, it is noted that for those skilled in the art,
Without departing from the principle of the present invention, several improvement and deformations can also be made, these improvement and deformations are also considered as this hair
Bright protection domain.
Claims (10)
1. a kind of temperature-control circuit, which is characterized in that including non-isolated power supply module, control process module, for acquiring ice
Temperature collecting module, relay, relay drive unit and the function button module of case internal and external environment temperature；
The first end of the switch of the relay is for connecting exchange firewire, and the second end of the switch of the relay is for connecting
Compressor, the relay drive unit include refrigeration control signal input part, feeder ear and refrigeration driving end；
The power input of the relay coil is connect with the feeder ear, the current output terminal of the relay coil and institute
State refrigeration driving end connection；
The non-isolated power supply module includes the power end for being connected to exchange firewire, the ground terminal for being connected to AC neutral line, first
Power output end and second source output end；
First power output end, the temperature collecting module, the function button module and the refrigeration control signal are defeated
Enter end to connect with the control process module, the feeder ear of the relay drive unit connects with the second source output end
It connects.
2. temperature-control circuit as described in claim 1, which is characterized in that the relay drive unit includes the first electricity
Resistance, second resistance, first switch pipe and the first diode；
The first end of the first resistor is connect with the refrigeration control signal input part, the second end of the first resistor and institute
The control terminal connection of first switch pipe is stated, the control terminal of the first switch pipe is grounded by the second resistance, and described first
The second end of switching tube is grounded, and the first end of the first switch pipe is connect with the anode of first diode, and described first
The cathode of diode is connect with the feeder ear, and the anode of first diode is also connect with refrigeration driving end.
3. temperature-control circuit as described in claim 1, which is characterized in that the temperature-control circuit further includes illumination mould
Block, the lighting module include LED light string and LED drive unit, and the LED drive unit includes illumination control signal input terminal
End is driven with illumination；
The LED light string includes the LED light that positive input terminal, negative input end and M are connected in series with；
The positive input terminal of the LED light string is connect with the second source output end, the negative input end of the LED light string with it is described
The illumination driving end connection of LED drive unit, illumination control signal input terminal and the control process of the LED drive unit
Module connects.
4. temperature-control circuit as claimed in claim 3, which is characterized in that the LED light string further includes the 4th resistance,
The LED light string is connect by the 4th resistance with the positive input terminal of the LED light string；
The LED drive unit includes the 5th resistance, the 6th resistance and second switch pipe, the first end of the 5th resistance and institute
The connection of illumination control signal input terminal is stated, the second end of the 5th resistance is connect with the control terminal of the second switch pipe, institute
The control terminal of second switch pipe is stated by the 6th resistance eutral grounding, the second end of the second switch pipe is grounded, and described second
The first end of switching tube is connect with illumination driving end.
5. the temperature-control circuit as described in any one of Claims 1-4 claim, which is characterized in that the temperature control
Circuit further includes compensation heat driven module, and the compensation heat driven module includes thermal control signals input terminal, three ends pair
To silicon-controlled, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the second capacitance, third switching tube and it is used to drive benefit
Repay the heat driven end of heater；
The thermal control signals input terminal is connect with the control process module, and the first end of the 7th resistance adds with described
Thermal control signal input part connects, and the second end of the 7th resistance is by the 8th resistance eutral grounding, and the second of the 7th resistance
End is connect with the control terminal of the third switching tube, and the first end of the third switching tube is grounded, and the of the third switching tube
Two ends are connected to AC neutral line by the 9th resistance and the tenth resistance, and second capacitance connects with the tenth resistor coupled in parallel
It connects, the first end of second capacitance is connect with the control terminal of the triode ac switch, the second end of second capacitance
It is connect with the first end of the triode ac switch, the second end of the triode ac switch and the heat driven end
Connection.
6. the temperature-control circuit as described in any one of Claims 1-4 claim, which is characterized in that the temperature control
Circuit further includes wire jumper selecting module；
The wire jumper selecting module includes power input, eleventh resistor, and twelfth resistor and N number of thirteenth resistor, N roots are jumped
Line and selection signal output end；
N number of thirteenth resistor is connected in series with, and the N roots wire jumper is in parallel with N number of thirteenth resistor one-to-one correspondence respectively
Connection, the power input are connect with the first end of the N number of thirteenth resistor being connected in series with, the N being connected in series with
The second end of a thirteenth resistor is connect with the first end of the twelfth resistor, the second end ground connection of the twelfth resistor,
The first end of the twelfth resistor is connect with the first end of the eleventh resistor, the second end of the eleventh resistor and institute
State the connection of selection signal output end.
7. such as Claims 1-4 any one of them temperature-control circuit, which is characterized in that the temperature-control circuit also wraps
Indicating module is included, the indicating module includes indicator light and indicator light driving unit；
The indicator light is connect with the indicator light driving unit, and the indicator light driving unit connects with the control process module
It connects.
8. such as Claims 1-4 any one of them temperature-control circuit, which is characterized in that the temperature collecting module includes
The identical temperature collecting cell of three structures, the temperature collecting cell include for collecting temperature signal temperature sensor,
14th resistance, the 15th resistance, third capacitance and temperature signal output end；
The temperature sensor is connect with the first end of the 14th resistance, and the second end of the 14th resistance is described in
The second end of second capacity earth, the 14th resistance is connect with the first end of the 15th resistance, the 15th electricity
The second end of resistance is connect with first power output end, first end and the temperature signal output end of the 15th resistance
Connection, the temperature signal output end are connect with the control process module.
9. a kind of refrigerating plant, which is characterized in that including temperature-control circuit, compressor, condenser, capillary and evaporator；
The temperature-control circuit is such as claim 1 to 8 any one of them temperature-control circuit；
The second end of the switch of the relay of the temperature-control circuit is connect with the compressor, the compressor and institute
Condenser connection is stated, the condenser is connect with the capillary, and the capillary is connect with the evaporator.
10. a kind of refrigerator, including babinet, which is characterized in that be equipped with refrigerating plant in the babinet；
The refrigerating plant is refrigerating plant as claimed in claim 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721840204 | 2017-12-26 | ||
| CN2017218402041 | 2017-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108775766A true CN108775766A (en) | 2018-11-09 |
Family
ID=64026226
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810661450.3A Pending CN108775766A (en) | 2017-12-26 | 2018-06-25 | Temperature-control circuit, refrigerating plant and refrigerator |
| CN201820986820.6U Active CN208606471U (en) | 2017-12-26 | 2018-06-25 | Temperature-control circuit, refrigerating plant and refrigerator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820986820.6U Active CN208606471U (en) | 2017-12-26 | 2018-06-25 | Temperature-control circuit, refrigerating plant and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108775766A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156784A (en) * | 2020-01-15 | 2020-05-15 | 宁波菲特电器有限公司 | Accurate temperature control system of beverage machine |
| CN112856896A (en) * | 2019-11-12 | 2021-05-28 | 日立环球生活方案株式会社 | Refrigerator with a door |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775766A (en) * | 2017-12-26 | 2018-11-09 | 广东奥马冰箱有限公司 | Temperature-control circuit, refrigerating plant and refrigerator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050091995A1 (en) * | 2003-11-04 | 2005-05-05 | Lg Electronics Inc. | Apparatus for generating heat of refrigerator and control method thereof |
| CN201133748Y (en) * | 2007-11-19 | 2008-10-15 | 深圳和而泰智能控制股份有限公司 | Refrigerator temperature controller |
| CN205027032U (en) * | 2015-06-03 | 2016-02-10 | 青岛康伦机电有限公司 | Domestic refrigerator electron control by temperature change LED lighting control circuit |
| CN208606471U (en) * | 2017-12-26 | 2019-03-15 | 广东奥马冰箱有限公司 | Temperature-control circuit, refrigerating plant and refrigerator |
-
2018
- 2018-06-25 CN CN201810661450.3A patent/CN108775766A/en active Pending
- 2018-06-25 CN CN201820986820.6U patent/CN208606471U/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050091995A1 (en) * | 2003-11-04 | 2005-05-05 | Lg Electronics Inc. | Apparatus for generating heat of refrigerator and control method thereof |
| CN201133748Y (en) * | 2007-11-19 | 2008-10-15 | 深圳和而泰智能控制股份有限公司 | Refrigerator temperature controller |
| CN205027032U (en) * | 2015-06-03 | 2016-02-10 | 青岛康伦机电有限公司 | Domestic refrigerator electron control by temperature change LED lighting control circuit |
| CN208606471U (en) * | 2017-12-26 | 2019-03-15 | 广东奥马冰箱有限公司 | Temperature-control circuit, refrigerating plant and refrigerator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856896A (en) * | 2019-11-12 | 2021-05-28 | 日立环球生活方案株式会社 | Refrigerator with a door |
| CN111156784A (en) * | 2020-01-15 | 2020-05-15 | 宁波菲特电器有限公司 | Accurate temperature control system of beverage machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN208606471U (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208606471U (en) | Temperature-control circuit, refrigerating plant and refrigerator | |
| CN101392979B (en) | Door switch counting refrigerator control system and control method for defrosting | |
| CN102506557B (en) | Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment | |
| CN2715071Y (en) | A moisture preservation refrigerator | |
| CN101691944B (en) | Electricity-saving control method and electricity-saving control device of air conditioner | |
| CN102278847B (en) | Direct cooling refrigerator | |
| CN101922846A (en) | Control system for single-door frostless refrigerator | |
| CN202661900U (en) | An electronic temperature control system and a refrigeration device using the system | |
| CN202229502U (en) | Direct cooling refrigerator | |
| CN104976858A (en) | Intermittent type refrigerator controller | |
| CN103575054B (en) | Intelligent frequency conversion refrigerator | |
| CN215176423U (en) | Energy-saving intelligent refrigeration combination cabinet control system | |
| CN106152690B (en) | Alternating current and photovoltaic DC dual-purpose refrigerator and water heater use together device | |
| CN2306470Y (en) | Double-temp. double-control switching refrigerator | |
| CN202361722U (en) | Control device of refrigeration system and refrigeration apparatus having the same | |
| CN201314762Y (en) | Defrosting control system of door switch counting refrigerator | |
| CN207317198U (en) | Defroster and air-conditioning system | |
| CN217357734U (en) | A kind of refrigerator | |
| CN111271920A (en) | Defrosting control method for air-cooled refrigerator | |
| CN2392151Y (en) | Refrigerator | |
| RU206650U1 (en) | Household Compression Refrigerator | |
| CN109595718A (en) | A kind of energy saving and environment friendly air-conditioning system | |
| CN202653680U (en) | Energy-saving display cabinet | |
| CN210861512U (en) | Energy-saving toilet air conditioner refrigerating system | |
| CN211695252U (en) | Novel air low-temperature refrigerating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |