CN208606471U - Temperature-control circuit, refrigerating plant and refrigerator - Google Patents
Temperature-control circuit, refrigerating plant and refrigerator Download PDFInfo
- Publication number
- CN208606471U CN208606471U CN201820986820.6U CN201820986820U CN208606471U CN 208606471 U CN208606471 U CN 208606471U CN 201820986820 U CN201820986820 U CN 201820986820U CN 208606471 U CN208606471 U CN 208606471U
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Links
- 238000005057 refrigeration Methods 0.000 claims abstract description 30
- 238000005286 illumination Methods 0.000 claims description 23
- 239000003990 capacitor Substances 0.000 claims description 19
- 230000007935 neutral effect Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 239000003507 refrigerant Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
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- 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 utility model discloses a kind of temperature-control circuits, including non-isolated power supply module, control processing 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 processing module, and feeder ear is connect with second source output end.Correspondingly, the invention also discloses a kind of refrigerating plant and refrigerators.The utility model can be improved temperature controlled accuracy, reduce temperature fluctuation range in refrigerator, and structure is simple, at low cost.
Description
Technical field
The utility model relates to electronic technology field more particularly to temperature-control circuits, refrigerating plant and refrigerator.
Background technique
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；Mechanical refrigerator needs temperature to rise to after bigger difference, control
Device processed can just be again started up compressor operating, and temperature fluctuation is relatively large, adversely affect to food preservation and energy consumption.In addition
Due to the self structure of mechanical thermostat, leading to refrigerator, there is also temperature drifts, 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.
Summary of the invention
It is controlled technical problem to be solved by the utility model is to provide a kind of temperature-control circuit, using the temperature
The refrigerating plant of circuit and the refrigerator for using the refrigerating plant, can be improved temperature controlled accuracy, reduce ice the temperature inside the box
Fluctuation range, and structure is simple, it is at low cost.
In order to solve the above-mentioned technical problem, the utility model provides a kind of temperature-control circuit, including non-isolated power supply
Module, control processing module, the temperature collecting module for acquiring refrigerator internal and external environment temperature, relay, relay driving list
Member and function button 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 processing module, and the feeder ear of the relay drive unit and the second source export
End connection.
Further, the relay drive unit includes first resistor, second resistance, first switch tube 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 tube, the control terminal of the first switch tube is grounded by the second resistance, described
The second end of first switch tube is grounded, and the first end of the first switch tube is connect with the anode of the first diode, described
The cathode of first diode is connect with the feeder ear, and the anode of the 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 of positive input terminal, negative input end and M series connection；
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, the illumination control signal input terminal of the LED drive unit and the control
Processing module connection.
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, the first end of the 5th resistance
It is connect with the illumination control signal input terminal, the second end of the 5th resistance and the control terminal of the second switch connect
It connects, by the 6th resistance eutral grounding, the second end of the second switch is grounded the control terminal of the second switch, described
The first end of second switch 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 capacitors, third switching tube and the heat driven end for driving compensating heater；
The thermal control signals input terminal is connect with the control processing module, the first end of the 7th resistance and institute
The connection of thermal control signals input terminal is stated, the second end of the 7th resistance passes through 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 capacitor and the tenth resistance are simultaneously
Connection connection, the first end of second capacitor connect with the control terminal of the triode ac switch, and the of second capacitor
Two ends are connect with the first end of the triode ac switch, the second end of the triode ac switch and the heat driven
End connection.
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, and the N root 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 N number of thirteenth resistor of the series connection, the series connection
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, and the indicator light driving unit and the control handle mould
Block connection.
Further, the temperature collecting module includes the identical temperature collecting cell of three structures, the temperature acquisition
Unit includes the temperature sensor for temperature collection signal, the 14th resistance, the 15th resistance, third capacitor 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 the third 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 connection, the temperature signal output end are connect with the control processing module.
Correspondingly, the utility model additionally provides a kind of refrigerating plant, including temperature-control circuit, compressor, condenser,
Capillary 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 utility model additionally provides a kind of refrigerator, including cabinet, is equipped with refrigerating plant in the cabinet；
The refrigerating plant is foregoing refrigerating plant.
Temperature-control circuit provided by the utility model, using the temperature-control circuit refrigerating plant and use the refrigeration
The refrigerator of device, temperature collecting module acquire the temperature of refrigerator internal and external environment in real time and collected temperature signal are sent to control
Temperature gear is arranged by function button module in processing module processed, user, and control processing module receive capabilities key module is sent
Temperature setting signal, control processing module judged according to temperature setting signal and collected temperature signal, work as acquisition
To temperature signal rise to the turn-on temperature threshold value of corresponding temperature gear when, control processing module to relay drive unit send out
Refrigeration control signal is sent, relay drive unit drives relay switch closure by driving end, so that compressor be driven to carry out
Work；When the temperature of acquisition is reduced to the shutdown temperature threshold value of corresponding temperature gear, relay drive unit passes through driving end
It drives relay to disconnect, stops working to control compressor, improve temperature controlled accuracy, reduce temperature wave in refrigerator
Dynamic range, and structure is simple, it is at low cost.
Detailed description of the invention
Fig. 1 is a kind of circuit block diagram of one embodiment of temperature-control circuit provided by the utility model；
Fig. 2 is a kind of electricity of one embodiment of the relay drive unit of temperature-control circuit provided by the utility model
Road schematic diagram；
Fig. 3 is a kind of circuit theory of one embodiment of the lighting module of temperature-control circuit provided by the utility model
Figure；
Fig. 4 is a kind of one embodiment of the temperature-compensating heating module of temperature-control circuit provided by the utility model
Circuit diagram；
Fig. 5 is a kind of circuit of one embodiment of the wire jumper selecting module of temperature-control circuit provided by the utility model
Schematic diagram；
Fig. 6 is a kind of circuit of one embodiment of the temperature collecting module of temperature-control circuit provided by the utility model
Schematic diagram；
Fig. 7 is a kind of structural schematic diagram of one embodiment of refrigerating plant provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is a kind of circuit block diagram of one embodiment of temperature-control circuit provided by the utility model referring to Fig. 1.
The utility model embodiment provides a kind of temperature-control circuit, including non-isolated power supply module 1, control processing module
2, for acquiring temperature collecting module 6, relay RL, relay drive unit 3 and the function button of refrigerator internal and external environment temperature
Module 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 CI, feeder ear Vi2 and refrigeration driving end Dr；
The power input of relay coil is connect with feeder ear Vi2, and the current output terminal and refrigeration of relay coil drive
Moved end Dr connection；
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 processing 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 processing module 2, and temperature gear is arranged by function button module 4 in user, and control processing module 2 receives function
The temperature setting signal that energy key module 4 is sent controls processing module 2 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 processing module 2 to
Relay drive unit 3 sends refrigeration control signal, and relay drive unit 3 drives relay RL switch to close by driving end Dr
It closes, so that compressor be driven to work；When the temperature of acquisition is reduced to the shutdown temperature threshold value of corresponding temperature gear, relay
Device driving unit 3 drives relay RL switch to disconnect by driving end Dr, stops working to control compressor, improves temperature
The accuracy of control reduces temperature fluctuation range in refrigerator, and structure is simple, at low cost.
It should be noted that temperature-control circuit uses non-isolated power supply module 1, reduces costs 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 and control processing module 2 connect
It connects.
It should be noted that indicator light 901 can have multiple, indicator light 901 can indicate temperature gear signal, can also be with
Indicate refrigerator work status signal etc..For example, 7 LED lights can be set, 5 are used to indicate the LED indication of 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 referring to fig. 2, is a kind of one of relay drive unit implementation of temperature-control circuit provided by the utility model
The circuit diagram of example.As shown in Fig. 2, relay drive unit 3 includes first resistor R25, second resistance R27, first switch
Pipe Q4 and 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 tube Q4 is grounded by second resistance R27, first switch tube Q4
Second end ground connection, the first end of first switch tube Q4 connect with the positive of first diode D5, the cathode of first diode D5
It is connect with feeder ear Vi2, the anode of 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 receives high level signal
When, conducting voltage is provided for first switch tube Q4 by first resistor R25 and second resistance R27, first switch tube Q4 is connected, after
There is electric current to pass through in electric appliance RY coil, relay RL is closed the switch, and is provided operating voltage for compressor, is driven compressor operating.
Preferably, RC absorptive unit can also be set, RC absorptive unit includes 3rd resistor R9 and first capacitor CX2, and
The first end of one capacitor CX2 is connect with the second end of the switch of relay RL, and the second end of first capacitor CX2 passes through 3rd resistor
R9 is connected to AC neutral line.RC absorptive unit plays the role of effectively inhibiting interference.
It is a kind of electricity of one embodiment of the lighting module 7 of temperature-control circuit provided by the utility model referring to Fig. 3
Road schematic diagram.As shown in figures 1 and 3, temperature-control circuit further includes lighting module 7, and lighting module 7 includes 701 He of LED light string
LED drive unit 702, LED drive unit 702 include illumination control signal input terminal Cr1 and illumination driving end Dr2；
LED light string 701 includes the LED light (LED81-LED8M) of positive input terminal a, negative input end b and M series connection；
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 connection, the illumination control signal input terminal Cr1 of LED drive unit 702 and control
Processing module 2 connects.
It should be noted that illumination or use incandescent lighting or use LED lamp panel or the bulb lamp of current refrigerator
Illumination, is 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 saving 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 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 and the control terminal of second switch Q7 connect
It connects, the control terminal of second switch Q7 is grounded by the 6th resistance R46, the second end ground connection of second switch 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,
Conducting voltage, second switch Q7 conducting, LED string are provided by the 5th resistance R45 and the 6th resistance R46 for second switch Q7
701 conductings shine.
Referring to fig. 4, be a kind of temperature-control circuit provided by the utility model temperature-compensating heating module 5 a reality
Apply the circuit diagram of example.As shown in Figure 1 and Figure 4, temperature-control circuit further includes compensation heat driven module 5, compensation heating
Drive module 5 include thermal control signals input terminal Cr2, triode ac switch TR1, the 7th resistance R33, the 8th resistance R31,
9th resistance R30, the tenth resistance R29, the second capacitor C7, third switching tube Q5 and for driving the heating of compensating heater to drive
Moved end Dr3；
Thermal control signals input terminal Cr2 is connect with control processing module 2, and the first end of the 7th resistance R33 and heating are controlled
The second end of signal input part Cr2 connection 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 capacitor C7 and the tenth resistance R29 is connected in parallel, the
The first end of two capacitor C7 is connect with the control terminal of triode ac switch TR1, the second end and three terminal bidirectional of the second capacitor 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 adds at this time
Hot device work rises to turn-on temperature threshold value to refrigerating chamber plus thermotropic temperature, and press works normally, and keeps freezing chamber in low temperature shape
State.Wherein, when refrigerator is in quick-frozen mode, control processing 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 processing module 2 by driving compensating heater and compressor operating in turn, to reach quick-frozen purpose.
It is a kind of one embodiment of the wire jumper selecting module of temperature-control circuit provided by the utility model referring to Fig. 5
Circuit 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 Vi3, eleventh resistor R69, twelfth resistor R50 and the N number of tenth
Three resistance (R41-R4N), N root wire jumper (A1-AN) and selection signal output end Cn1；
N number of thirteenth resistor (R41-R4N) is connected in series, N root wire jumper (A1-AN) respectively with N number of thirteenth resistor (R41-
R4N it) corresponds and is connected in parallel, the first of power input Vi 3 and the N number of thirteenth resistor (R41-R4N) being connected in series
End connection, the second end of N number of thirteenth resistor (R41-R4N) of series connection are connect with the first end of twelfth resistor R50, the
The second end of 12 resistance R50 is grounded, and the first end of twelfth resistor R50 is connect with the first end of eleventh resistor R69, the
The second end of 11 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 processing module 2
Different selection signals is sent, control processing module 2 selects 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 costs, simple and convenient.For example, 3 wire jumpers can drive the pressure of 8 seed 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 one embodiment of the temperature collecting module of temperature-control circuit provided by the utility model referring to Fig. 6
Circuit diagram.As shown in fig. 6, temperature collecting module 6 includes the identical temperature collecting cell 601 of three structures, temperature is adopted
Collection unit 601 includes temperature sensor SNR, the 14th resistance R10, the 15th resistance RS, third for temperature collection signal
Capacitor 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 the
Three capacitor C5 ground connection, the second end of the 14th resistance R10 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 the first end and temperature signal output end (cn21-cn23) of the 15th resistance RS is even
It connects, temperature signal output end (cn21-cn23) is connect with control processing 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 processing module 2, control processing module 2 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 utility model referring to Fig. 7.
The utility model provides a kind of refrigerating plant, including temperature-control circuit, compressor 21, condenser 22, capillary
23 and 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 utility model additionally provides a kind of refrigerator, including cabinet, is equipped with refrigerating plant in cabinet；
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 processing module 2, temperature gear, control is arranged by function button module 4 in user
The temperature setting signal that 2 receive capabilities key module 4 of processing module processed is sent controls processing module 2 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 processing module 2 sends refrigeration control signal to relay drive unit 3, and relay drive unit 3 passes through driving end Dr
Driving relay RL is closed the switch, so that compressor is driven to work, the 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 of the liquefied cryogenic high pressure of condenser 22
For refrigerant reducing pressure by regulating flow at low-temp low-pressure atomized refrigerant, refrigerant is evaporated to rapidly steam after entering evaporator 24, to reach
To 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 is logical
It overdrives and Dr driving relay RL switch is held to disconnect, stop working to control compressor, improve temperature controlled accuracy,
Temperature fluctuation range in refrigerator is reduced, and structure is simple, it is at low cost.
Temperature-control circuit provided by the utility model, using the temperature-control circuit refrigerating plant and use the refrigeration
The refrigerator of device, temperature collecting module acquire the temperature of refrigerator internal and external environment in real time and collected temperature signal are sent to control
Temperature gear is arranged by function button module in processing module processed, user, and control processing module receive capabilities key module is sent
Temperature setting signal, control processing module judged according to temperature setting signal and collected temperature signal, work as acquisition
To temperature signal rise to the turn-on temperature threshold value of corresponding temperature gear when, control processing module to relay drive unit send out
Refrigeration control signal is sent, relay drive unit drives relay switch closure by driving end, so that compressor be driven to carry out
Work；When the temperature of acquisition is reduced to the shutdown temperature threshold value of corresponding temperature gear, relay drive unit passes through driving end
It drives relay to disconnect, stops working to control compressor, improve temperature controlled accuracy, reduce temperature wave in refrigerator
Dynamic range, and structure is simple, it is at low cost.
It is preferred embodiments of the present invention above, it is noted that for those skilled in the art
For, without departing from the principle of this utility model, several improvement and deformations can also be made, these improvement and deformations
It is considered as the protection scope of the utility model.
Claims (10)
1. a kind of temperature-control circuit, which is characterized in that including non-isolated power supply module, control processing 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 processing module, the feeder ear of the relay drive unit and the second source output end connect
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 tube and 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 tube is stated, the control terminal of the first switch tube 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 tube is connect with the anode of the first diode, and described first
The cathode of diode is connect with the feeder ear, and the anode of the 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 of positive input terminal, negative input end and M series connection；
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, the illumination control signal input terminal of the LED drive unit and the control are handled
Module connection.
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, 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, institute
The control terminal of second switch is stated by the 6th resistance eutral grounding, the second end of the second switch 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 capacitor, 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 processing module, and the first end of the 7th resistance adds with described
The connection of thermal control signal input part, 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 capacitor and the tenth resistor coupled in parallel connect
It connects, the first end of second capacitor is connect with the control terminal of the triode ac switch, the second end of second capacitor
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 connect
It connects.
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 root are jumped
Line and selection signal output end；
N number of thirteenth resistor is connected in series, and the N root 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 N number of thirteenth resistor of the series connection, the N of the series connection
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 the described in any item temperature-control circuits of Claims 1-4, 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 and the control processing module connect
It connects.
8. such as the described in any item temperature-control circuits of Claims 1-4, which is characterized in that the temperature collecting module includes
The identical temperature collecting cell of three structures, the temperature collecting cell include for temperature collection signal temperature sensor,
14th resistance, the 15th resistance, third capacitor 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 described
The second end of third 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, the first end of the 15th resistance and the temperature signal output end
Connection, the temperature signal output end are connect with the control processing 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 temperature-control circuit as claimed in any one of claims 1 to 8；
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 cabinet, which is characterized in that be equipped with refrigerating plant in the cabinet；
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 |
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| CN208606471U true CN208606471U (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820986820.6U Withdrawn - After Issue CN208606471U (en) | 2017-12-26 | 2018-06-25 | Temperature-control circuit, refrigerating plant and refrigerator |
| CN201810661450.3A Active CN108775766B (en) | 2017-12-26 | 2018-06-25 | Temperature control circuit, refrigerating device and refrigerator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810661450.3A Active CN108775766B (en) | 2017-12-26 | 2018-06-25 | Temperature control circuit, refrigerating device and refrigerator |
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Cited By (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 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856902A (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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101005697B1 (en) * | 2003-11-04 | 2011-01-05 | 엘지전자 주식회사 | Low temperature compensation lamp heating apparatus oof refrigerator |
| 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 CN201820986820.6U patent/CN208606471U/en not_active Withdrawn - After Issue
- 2018-06-25 CN CN201810661450.3A patent/CN108775766B/en active Active
Cited By (2)
| 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 |
| CN108775766B (en) * | 2017-12-26 | 2024-07-16 | 广东奥马冰箱有限公司 | Temperature control circuit, refrigerating device and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108775766A (en) | 2018-11-09 |
| CN108775766B (en) | 2024-07-16 |
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