CN105605873B - The thermal source control method and system of a kind of absorption refrigerator - Google Patents
The thermal source control method and system of a kind of absorption refrigerator Download PDFInfo
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- CN105605873B CN105605873B CN201511033911.5A CN201511033911A CN105605873B CN 105605873 B CN105605873 B CN 105605873B CN 201511033911 A CN201511033911 A CN 201511033911A CN 105605873 B CN105605873 B CN 105605873B
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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
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- 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 the thermal source control method and system of a kind of absorption refrigerator.This method, including：Obtain the temperature T of refrigerator inside；If it is determined that the temperature T is more than preset high-temperature temperature, heating element heater laser heating is controlled；If it is determined that the temperature T is in preset cooling scope, the heating of control heating element heater cycle；If it is determined that the temperature T is in preset temperature hold in range, the heating of control heating element heater cycle.The present invention according to internal temperature of refrigerator and preset temperature range controls the heating duty of heating element heater ratio, can reduce energy consumption of refrigerator, improve the refrigerating speed of refrigerator, make internal temperature of refrigerator more uniformly, fluctuation range it is small.
Description
Technical field
The present invention relates to the thermal source control method and system of refrigerator art, more particularly to a kind of absorption refrigerator.
Background technology
With the raising of the level of consumption of current resident, people increasingly advocate leisure and the life of high-quality, and refrigerator removes
Outside as the necessity of family expenses, in other outdoor leisures or lodging occasion also into basic configuration, according to the class of configuration refrigerator
Type point, not only includes traditional compressor refrigerator among these, also includes absorption refrigerator and semiconductor freezer simultaneously, particularly inhales
Receipts formula refrigerator, because there is the advantages of its is irreplaceable, it is set to occupy larger market in non-domestic field, these markets mainly include star
Level hotel and caravan field etc., its utilization rate are higher than other kinds of refrigerator.
Absorption refrigerator operation logic mainly refrigerant is heated using thermal source, then by it is a series of separation,
Distillation, condensation, absorption and diffusive evaporation process, and then decline air themperature in refrigerator.Absorption refrigerator has advantages below：
(1) run it is noiseless, because refrigeration system is operationally without running gear, it is not required that fan, so in running substantially without
Noise；(2) working method is more, because needing to utilize external heat source when refrigeration system works, it is possible to using AC electric-heating, directly
Electrical heating or liquefied petroleum gas igniting heating are flowed, and refrigerating capacity can match in excellence or beauty with compressor.But because absorption refrigerator tradition
Control thermal source mode of heating uses the mode of " reaching shutoff temperature just to stop, treat that temperature recovery is just opened to turn-on temperature ", so leading
Absorption refrigerator is caused to have the disadvantages that：(1) refrigerating speed is slow, and each refrigeration system needs half an hour small to one when starting
When more than just start to freeze, so need the long period to can be only achieved setting temperature, cause internal temperature of refrigerator fluctuation larger；
(2) need half an hour to one more than hour when refrigeration system starts every time, so conduction time is long, compare power consumption
Height, with AC-powered, power consumption values are 3-5 times of the compressor refrigerators of identical capacity；(3) when circumstance temperature compare it is relatively low (such as less than
16 degree) when, to two-compartment type refrigerator, because temperature of refrigerating chamber demand is higher, so preset temperature will soon be reached, and refrigerating chamber does not have also
Have and reach, cause frozen food apt to deteriorate.
The content of the invention
The invention provides the thermal source control method and system of a kind of absorption refrigerator, according to internal temperature of refrigerator and preset
Temperature range control the heating duty of heating element heater ratio, energy consumption of refrigerator can be reduced, improve the refrigerating speed of refrigerator, make refrigerator
Internal temperature is more uniform, fluctuation range is small.
To realize above-mentioned design, the present invention uses following technical scheme：
On the one hand, there is provided a kind of thermal source control method of absorption refrigerator, it is characterised in that including：
Obtain the temperature T of refrigerator inside；
If it is determined that the temperature T is more than preset high-temperature temperature, heating element heater laser heating is controlled；
If it is determined that the temperature T is in preset cooling scope, the heating of control heating element heater cycle；
If it is determined that the temperature T is in preset temperature hold in range, the heating of control heating element heater cycle.
Preferably, after the temperature T for obtaining refrigerator inside, in addition to：
If it is determined that the temperature T is in preset preheating temperature scope, the heating of control heating element heater cycle；
If it is determined that the temperature T is less than or equal to preset low temperature temperature, control heating element heater stops heating.
Preferably, preset high-temperature temperature=Ts+6 DEG C of the refrigerator design temperature；
It is described that if it is determined that the temperature T is in preset cooling scope, the control heating element heater cycle heats, including：
If it is determined that the temperature T is in the preset scope that once cools, control heating element heater is by the cycle heating that once cools；Institute
Stating preset once cooling scope is：(Ts+3 DEG C, Ts+6 DEG C], it is described once cooling the cycle be：Open heating 19s- and stop heating
The heating cycle of 5s circulations；
If it is determined that the temperature T is in preset reducing temperature twice scope, control heating element heater is heated by the reducing temperature twice cycle；Institute
Stating preset reducing temperature twice scope is：(Ts+1 DEG C, Ts+3 DEG C], the reducing temperature twice cycle is：Open heating 16s- and stop heating
The heating cycle of 8s circulations；
It is described that if it is determined that the temperature T is in preset temperature hold in range, the control heating element heater cycle heats, including：
If it is determined that the temperature T is in preset first temperature hold in range, control heating element heater is kept for week by the first temperature
Phase heats；The preset first temperature hold in range is：(Ts DEG C, Ts+1 DEG C], the first temperature hold period is：Open and add
Hot 14s- stops the heating cycle of heating 10s circulations；
If it is determined that the temperature T is in preset second temperature hold in range, control heating element heater is kept for week by second temperature
Phase heats；The preset second temperature hold in range is：(Ts-0.5 DEG C, Ts], the second temperature hold period is：Open and add
Hot 12s- stops the heating cycle of heating 12s circulations；
If it is determined that the temperature T is in preset 3rd temperature hold in range, control heating element heater is kept for week by the 3rd temperature
Phase heats；The preset 3rd temperature hold in range is：(Ts-1 DEG C, Ts-0.5 DEG C], the 3rd temperature hold period is：Open
Open the heating cycle that heating 11s- stops heating 13s circulations.
Preferably：
The preset preheating temperature scope is：(Ts-3 DEG C, Ts-1 DEG C]；
Described if it is determined that the temperature T is in preset preheating temperature scope, the control heating element heater cycle heats, specific bag
Include：If it is determined that the temperature T be in preset preheating temperature scope (Ts-3 DEG C, Ts-1 DEG C], control heating element heater by open heat
10s- stops heating heating cycle of heating 14s circulations；
The preset low temperature temperature=Ts-3 DEG C.
Preferably, the temperature T for obtaining refrigerator inside, it is specially：The temperature T of refrigerator inside is obtained by during cycle.
On the other hand, there is provided a kind of thermal source control system of absorption refrigerator, the system, including：
Temperature acquisition module, for obtaining the temperature T of refrigerator inside；
Laser heating module, for if it is determined that the temperature T is more than preset high-temperature temperature, control heating element heater continuously to add
Heat；
Cool heating module, for if it is determined that the temperature T is in preset cooling scope, the control heating element heater cycle to add
Heat；
Heating module is kept, for if it is determined that the temperature T is in preset temperature hold in range, control heating element heater cycle
Heating.
Preferably, in addition to：
Heating module is preheated, for if it is determined that the temperature T is in preset preheating temperature scope, control heating element heater cycle
Heating；
Stop heating module, for if it is determined that the temperature T is less than or equal to preset low temperature temperature, control heating element heater to stop
Heating.
Preferably, preset high-temperature temperature=Ts+6 DEG C of the refrigerator design temperature；
The cooling heating module includes：
Temperature reducing unit, for if it is determined that the temperature T is in the preset scope that once cools, control heating element heater to press one
Secondary cooling cycle heating；It is described it is preset once cooling scope be：(Ts+3 DEG C, Ts+6 DEG C], it is described once cooling the cycle be：Open
Heat the heating cycle that 19s- stops heating 5s circulations；
Reducing temperature twice unit, for if it is determined that the temperature T is in preset reducing temperature twice scope, control heating element heater to press two
Secondary cooling cycle heating；The preset reducing temperature twice scope is：(Ts+1 DEG C, Ts+3 DEG C], the reducing temperature twice cycle is：Open
Heat the heating cycle that 16s- stops heating 8s circulations；
The holding heating module, including：
First keeps heating unit, for if it is determined that the temperature T is in preset first temperature hold in range, control heating
Element is heated by the first temperature hold period；The preset first temperature hold in range is：(Ts DEG C, Ts+1 DEG C], described first
Temperature hold period is：Open the heating cycle that heating 14s- stops heating 10s circulations；
Second keeps heating unit, for if it is determined that the temperature T is in preset second temperature hold in range, control heating
Element is heated by second temperature hold period；The preset second temperature hold in range is：(Ts-0.5 DEG C, Ts], described second
Temperature hold period is：Open the heating cycle that heating 12s- stops heating 12s circulations；
3rd keeps heating unit, for if it is determined that the temperature T is in preset 3rd temperature hold in range, control heating
Element is heated by the 3rd temperature hold period；The preset 3rd temperature hold in range is：(Ts-1 DEG C, Ts-0.5 DEG C], it is described
3rd temperature hold period is：Open the heating cycle that heating 11s- stops heating 13s circulations.
Preferably：
The preset preheating temperature scope is：(Ts-3 DEG C, Ts-1 DEG C]；
The preheating heating module, is specifically used for：If it is determined that the temperature T be in preset preheating temperature scope (Ts-3 DEG C,
Ts-1 DEG C], control heating element heater stops heating heating cycle of heating 14s circulations by heating 10s- is opened；
The preset low temperature temperature=Ts-3 DEG C.
Preferably, the temperature acquisition module, is specifically used for：The temperature T of refrigerator inside is obtained by during cycle.
Compared with prior art, beneficial effects of the present invention are：Obtain the temperature T of refrigerator inside；If it is determined that the temperature T
More than preset high-temperature temperature, heating element heater laser heating is controlled；If it is determined that the temperature T is in preset cooling scope, control adds
The thermal element cycle heats；If it is determined that the temperature T is in preset temperature hold in range, the heating of control heating element heater cycle.This hair
It is bright to reduce energy consumption of refrigerator according to internal temperature of refrigerator and preset temperature range controls the heating duty of heating element heater ratio,
Improve refrigerator refrigerating speed, make internal temperature of refrigerator more uniformly, fluctuation range it is small.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, institute in being described below to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it can also be implemented according to the present invention
The content of example and these accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of the first implementation of the thermal source control method of the absorption refrigerator provided in the specific embodiment of the invention
The method flow diagram of example.
Fig. 2 is a kind of signal of the heat source control circuit of the absorption refrigerator provided in specific embodiment of the invention mode
Figure.
Fig. 3 is a kind of the second reality of the thermal source control method of the absorption refrigerator provided in specific embodiment of the invention mode
Apply the method flow diagram of example.
Fig. 4 is a kind of thermal source control method of absorption refrigerator in traditional control method and specific embodiment of the invention mode
Second embodiment new improvement control mode internal temperature of refrigerator temperature profile.
Fig. 5 is a kind of the first implementation of the thermal source control system of the absorption refrigerator provided in the specific embodiment of the invention
The block diagram of example.
Fig. 6 is a kind of the second implementation of the thermal source control system of the absorption refrigerator provided in the specific embodiment of the invention
The block diagram of example.
Embodiment
For make present invention solves the technical problem that, the technical scheme that uses and the technique effect that reaches it is clearer, below
The technical scheme of the embodiment of the present invention will be described in further detail with reference to accompanying drawing, it is clear that described embodiment is only
It is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those skilled in the art exist
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is refer to, it is a kind of thermal source control method of the absorption refrigerator provided in the specific embodiment of the invention
First embodiment method flow diagram.As illustrated, this method, including：
Step S101：Obtain the temperature T of refrigerator inside.
Step S102：If it is determined that the temperature T is more than preset high-temperature temperature, heating element heater laser heating is controlled.
When temperature T is more than preset high-temperature temperature, heating element heater laser heating is controlled, so that refrigerator inside fast cooling.
Also only heating element heater ability laser heating, prevent that refrigeration system is long-term when the temperature T of refrigerator inside is more than preset high-temperature temperature
Laser heating, make refrigeration system temperature too high and cause refrigeration performance to reduce.
As shown in Fig. 2 it is a kind of thermal source control electricity of the absorption refrigerator provided in specific embodiment of the invention mode
The schematic diagram on road.Optocoupler MOC3022 is sent control signals to by MCU (Microcontroller Unit, micro control unit), entered
Row high-low pressure signal isolation, the break-make of bidirectional triode thyristor is then controlled, and then control the start-stop of heating element heater.Heat source control circuit
For prior art, here is omitted, and the heat source control circuit in Fig. 2 is the thermal source control provided in the specific embodiment of the invention
One embodiment of circuit processed, a kind of absorption refrigerator provided by the invention can be also realized using other heat source control circuits
Thermal source control method.
Step S103：If it is determined that the temperature T is in preset cooling scope, the heating of control heating element heater cycle.
It is described it is preset cooling scope be：Less than preset high-temperature temperature, but more than the temperature range of refrigerator design temperature.It is if warm
Degree T is in preset cooling scope, illustrates that the temperature T of refrigerator inside is higher, does not also reach refrigerator design temperature, it is necessary to continue to drop
Temperature, therefore the heating element heater cycle need to be controlled to heat, the cycle is heated to be the heating cycle of unlatching heating-stopping heat cycles,
Because need reduce internal temperature of refrigerator T, so open heating duration than stop heating time it is long, both differ compared with
Greatly.The duration for opening heating and the duration for stopping heating being configured according to actual conditions.
Step S104：If it is determined that the temperature T is in preset temperature hold in range, the heating of control heating element heater cycle.
The preset temperature hold in range is the temperature range near refrigerator design temperature, for example, refrigerator design temperature
± 1 DEG C or a temperature range of refrigerator design temperature ± 2 DEG C.When temperature T is in preset temperature hold in range, illustrate in refrigerator
The temperature T in portion has reached or has been up to refrigerator preset temperature, then control the heating element heater cycle heating, and open heating it is lasting when
Between with stop heating time phase difference it is smaller.The duration for opening heating and the duration for stopping heating can be according to actual feelings
Condition is configured.
Preferably, step S101, step S101 can be first carried out, then between step S102, step S103 and step S104
Perform step S102, step S103 and step S104；It may also be and first carry out step S101, then perform step S103 and step
S104；Or first carry out step S101 and then perform step S104.Specifically any order, it is the temperature according to refrigerator inside
T and determine.
In summary, the present embodiment controls the heating of heating element heater according to internal temperature of refrigerator and preset temperature range
Dutycycle, that is, control heat time, the heating cycle of heating element heater, the thermal source controlling party for the absorption refrigerator that the present embodiment provides
Method can reduce energy consumption of refrigerator, improve the refrigerating speed of refrigerator, make internal temperature of refrigerator more uniformly, fluctuation range it is small.
Fig. 3 is refer to, it is a kind of thermal source control method of the absorption refrigerator provided in the specific embodiment of the invention
Second embodiment method flow diagram.As illustrated, this method, including：
Step S201：The temperature T of refrigerator inside is obtained by during cycle.
The temperature T of refrigerator inside is obtained by during cycle, the temperature T of refrigerator inside can be observed to adjust heating unit in time
Heat time, the heating cycle of part.
Step S202：If it is determined that the temperature T is more than preset high-temperature temperature, heating element heater laser heating is controlled.
Preferably, preset high-temperature temperature=Ts+6 DEG C of the refrigerator design temperature.When temperature T is more than preset high-temperature temperature
When, heating element heater laser heating is controlled, so that refrigerator inside fast cooling.Also only it is more than in the temperature T of refrigerator inside preset
During high-temperature temperature, heating element heater ability laser heating, the long-term laser heating of refrigeration system is prevented, make refrigeration system temperature too high and lead
Refrigeration performance is caused to reduce.
As shown in figure 4, it is a kind of heat of absorption refrigerator in traditional control method and specific embodiment of the invention mode
The temperature profile of the internal temperature of refrigerator of the new improvement control mode of the second embodiment of operated control method.When temperature T is big
When preset high-temperature temperature, heating element heater laser heating is controlled, the temperature profile of the new improvement control mode in corresponding diagram 4
In a sections, it can be seen that control heating element heater laser heating, internal temperature of refrigerator rapid decrease can be made.
Step S203：If it is determined that the temperature T is in preset cooling scope, the heating of control heating element heater cycle.
It is described it is preset cooling scope be：Less than preset high-temperature temperature, but more than the temperature range of refrigerator design temperature.It is if warm
Degree T is in preset cooling scope, illustrates that the temperature T of refrigerator inside is higher, does not also reach refrigerator design temperature, it is necessary to continue to drop
Temperature, therefore the heating element heater cycle need to be controlled to heat, the cycle is heated to be the heating cycle of unlatching heating-stopping heat cycles,
Because need reduce internal temperature of refrigerator T, so open heating duration than stop heating time it is long, both differ compared with
Greatly.The duration for opening heating and the duration for stopping heating being configured according to actual conditions.
It is preferably, described that if it is determined that the temperature T is in preset cooling scope, the control heating element heater cycle heats, including：
If it is determined that the temperature T is in the preset scope that once cools, control heating element heater is by the cycle heating that once cools；Institute
Stating preset once cooling scope is：(Ts+3 DEG C, Ts+6 DEG C], it is described once cooling the cycle be：Open heating 19s- and stop heating
The heating cycle of 5s circulations.When temperature T is in the preset scope that once cools, control heating element heater by open heating 19s- stop plus
The heating cycle of hot 5s circulations heats, the b sections in the temperature profile of the new improvement control mode in corresponding diagram 4, from figure
As can be seen that control heating element heater is heated by the heating cycle for opening heating 19s- stopping heating 5s circulations, refrigerator inside
The speed that declines of temperature T, but speed during than laser heating is slow.
If it is determined that the temperature T is in preset reducing temperature twice scope, control heating element heater is heated by the reducing temperature twice cycle；Institute
Stating preset reducing temperature twice scope is：(Ts+1 DEG C, Ts+3 DEG C], the reducing temperature twice cycle is：Open heating 16s- and stop heating
The heating cycle of 8s circulations.When temperature T is in the preset scope that once cools, control heating element heater by open heating 16s- stop plus
The heating cycle of hot 8s circulations heats, the c sections in the temperature profile of the new improvement control mode in corresponding diagram 4, from figure
As can be seen that control heating element heater is heated by the heating cycle for opening heating 16s- stopping heating 8s circulations, refrigerator inside
The speed that declines of temperature T it is relative by the cycle heating that once cools will more slowly, but temperature or continuous decrease.Described preset one
Secondary cooling scope and preset reducing temperature twice scope, preset cooling scope is simply divided into two temperature ranges, corresponds to the two temperature
The heating cycle of degree scope is also just named as once cool cycle and reducing temperature twice cycle.Can also will be preset according to actual conditions
Cooling scope is divided into three or four temperature ranges, can be used as one.
Step S204：If it is determined that the temperature T is in preset temperature hold in range, the heating of control heating element heater cycle.
The preset temperature hold in range is the temperature range near refrigerator design temperature, for example, refrigerator design temperature
± 1 DEG C or a temperature range of refrigerator design temperature ± 2 DEG C.When temperature T is in preset temperature hold in range, illustrate in refrigerator
The temperature T in portion has reached or has been up to refrigerator preset temperature, then control the heating element heater cycle heating, and open heating it is lasting when
Between with stop heating time it is similar, both differ it is smaller.Open the duration of heating and stop the duration of heating
It can be configured according to actual conditions.
It is preferably, described that if it is determined that the temperature T is in preset temperature hold in range, the control heating element heater cycle heats,
Including：
If it is determined that the temperature T is in preset first temperature hold in range, control heating element heater is kept for week by the first temperature
Phase heats；The preset first temperature hold in range is：(Ts DEG C, Ts+1 DEG C], the first temperature hold period is：Open and add
Hot 14s- stops the heating cycle of heating 10s circulations.When temperature T is in preset first temperature hold in range, control heating element heater
Heating cycle by heating 14s- stopping heating 10s circulations are opened heats, and the temperature of the new improvement control mode in corresponding diagram 4 is shown
D sections in meaning curve.
If it is determined that the temperature T is in preset second temperature hold in range, control heating element heater is kept for week by second temperature
Phase heats；The preset second temperature hold in range is：(Ts-0.5 DEG C, Ts], the second temperature hold period is：Open and add
Hot 12s- stops the heating cycle of heating 12s circulations.When temperature T is in preset second temperature hold in range, control heating element heater
Heating cycle by heating 12s- stopping heating 12s circulations are opened heats, and the temperature of the new improvement control mode in corresponding diagram 4 is shown
E sections in meaning curve.
If it is determined that the temperature T is in preset 3rd temperature hold in range, control heating element heater is kept for week by the 3rd temperature
Phase heats；The preset 3rd temperature hold in range is：(Ts-1 DEG C, Ts-0.5 DEG C], the 3rd temperature hold period is：Open
Open the heating cycle that heating 11s- stops heating 13s circulations.When temperature T is in preset 3rd temperature hold in range, control heating
The heating cycle that element is stopped heating 13s circulations by unlatching heating 11s- heats, the temperature of the new improvement control mode in corresponding diagram 4
The f sections spent in profile.
Preferably, the first temperature hold in range, second temperature hold in range and the 3rd temperature hold in range, simply will
Preset temperature hold in range is divided into three temperature ranges, and preset temperature hold in range can be also divided into one, two, four or five
Individual temperature range, one, two, four or five temperature hold period of corresponding setting.
It should be noted that the temperature profile in Fig. 4 is the temperature of refrigerator inside when refrigerator works from the beginning
Curve, if according to the internal temperature T of refrigerator, it is above-mentioned when step S201, step S202, step S203, step S204 are performed successively
A sections, b sections, c sections, d sections, e sections and the f sections of the temperature profile of control mode are just newly improved in corresponding diagram 4 respectively；If according to
After the temperature T of refrigerator inside, execution step S201, then perform step S203 and step S204；Or perform step S201
Afterwards, then perform step S204, then with newly improved in Fig. 4 a sections of temperature profile of control mode, b sections, c sections, d sections,
E sections and f sections are not correspond to.
Step S205：If it is determined that the temperature T is in preset preheating temperature scope, the heating of control heating element heater cycle.
Preferably, the preset preheating temperature scope is：(Ts-3 DEG C, Ts-1 DEG C].It is described if it is determined that the temperature T is in
Preset preheating temperature scope, control heating element heater cycle heating, is specifically included：If it is determined that the temperature T is in preset preheating temperature
Degree scope (Ts-3 DEG C, Ts-1 DEG C], the heating cycle that control heating element heater is stopped heating 14s circulations by unlatching heating 10s- adds
Heat, and then refrigeration system is preheated, refrigeration system is freezed faster in next loop start.When temperature T is in pre-
When putting preheating temperature scope, illustrate that the temperature T of refrigerator inside is less than refrigerator preset temperature Ts, now open the duration of heating
Duration than stopping heating is short, but is not complete stopping heating, also has the process of heating, this can be in refrigeration system
Preheated state, facilitate refrigeration system to start, if the situation that the temperature T for refrigerator inside occur rapidly rises, such as open refrigerator doors
It (see open door sections in Fig. 4), can also quickly start refrigeration system, control heating element heats, make the temperature of refrigerator inside
T rapid decreases.So this temperature range is named as preset preheating temperature scope, i.e. the temperature model less than refrigerator preset temperature Ts
Enclose.
Even if after the temperature T of refrigerator inside reaches refrigerator preset temperature Ts, also controlling heating element heater to be heated by heating cycle,
Ensure that refrigeration system is in starting state all the time, on the one hand can maintain the temperature T of refrigerator inside or slow down its rise speed, separately
On the one hand the bigger energy consumption for restarting and bringing after shutting down can be prevented.Circumstance temperature than it is relatively low when, two-compartment type refrigerator easily occurs
The too high situation of freezer temperature, and the thermal source control method for using the present embodiment to provide, after reaching refrigerator preset temperature Ts,
Still heated to heating element heater by heating cycle, so refrigeration system still has some refrigerant evaporation, because evaporation pipeline is all first
By refrigerating chamber, then by refrigerating chamber, so can still refrigeration be produced to refrigerating chamber, thus can be in refrigerating chamber without refrigeration
During demand, refrigerating chamber continues to freeze, and ensure that freezer temperature is unlikely to too high and causes food spoilage.
Step S206：If it is determined that the temperature T is less than or equal to preset low temperature temperature, control heating element heater stops heating.
Preferably, the preset low temperature temperature=Ts-3 DEG C.If temperature T is less than or equal to preset low temperature temperature, illustrate refrigerator
It is internal too low, without controlling heating element heats, in order to avoid increase energy consumption.Therefore when temperature T is less than or equal to preset low temperature temperature,
Control heating element heater to stop heating, reach the effect of energy-conservation.
Preferably, preset high-temperature temperature described in the present embodiment, preset cooling scope, the preset scope, once of once cooling
Cool the cycle, preset reducing temperature twice scope, the reducing temperature twice cycle, preset temperature hold in range, preset first temperature hold in range,
First temperature hold period, preset second temperature hold in range, second temperature hold period, preset 3rd temperature hold in range,
3rd temperature hold period, preset preheating temperature scope, preset low temperature temperature be not it is fixed, can be according to the actual feelings of refrigerator
Condition determines optimal parameter after carrying out test of many times.
Figure 4, it is seen that compared with traditional control method, the new improvement control mode that is provided using the present embodiment,
The performance of refrigerator each side is obviously improved.The new improvement control mode provided using the present embodiment, energy consumption of refrigerator can reduce
More than 20%, the temperature of refrigerator inside is more uniform, and traditional control method is at ± 3 DEG C or so, and what the present embodiment provided newly changes
Can be reached by entering control mode by less than ± 1 DEG C；And when circumstance temperature is too low, traditional control method refrigerating chamber only maintains -10 DEG C of left sides
The right side, and the new improvement control mode that the present embodiment provides can reach less than -15 DEG C.
It is a kind of embodiment of the thermal source control system of the absorption refrigerator provided in the specific embodiment of the invention below,
Embodiment of the embodiment of system based on above-mentioned method is realized, not most description in systems, refer to the reality of preceding method
Apply example.
Fig. 5 is refer to, it is a kind of thermal source control system of the absorption refrigerator provided in the specific embodiment of the invention
First embodiment block diagram.As illustrated, the system, including：
Temperature acquisition module 31, for obtaining the temperature T of refrigerator inside.
Laser heating module 32, for if it is determined that the temperature T is more than preset high-temperature temperature, control heating element heater continuously to add
Heat.
Cool heating module 33, for if it is determined that the temperature T is in preset cooling scope, the control heating element heater cycle to add
Heat.
Heating module 34 is kept, for if it is determined that the temperature T is in preset temperature hold in range, control heating element heater week
Phase heats.
In summary, the present embodiment controls the heating of heating element heater according to internal temperature of refrigerator and preset temperature range
Dutycycle, that is, control heat time, the heating cycle of heating element heater, the thermal source controlling party for the absorption refrigerator that the present embodiment provides
Method can reduce energy consumption of refrigerator, improve the refrigerating speed of refrigerator, make internal temperature of refrigerator more uniformly, fluctuation range it is small.
Fig. 6 is refer to, it is a kind of thermal source control system of the absorption refrigerator provided in the specific embodiment of the invention
Second embodiment block diagram.As illustrated, the system, including：
Temperature acquisition module 41, for obtaining the temperature T of refrigerator inside by during cycle.
The temperature T of refrigerator inside is obtained by during cycle, the temperature T of refrigerator inside can be observed to adjust heating unit in time
Heat time, the heating cycle of part.
Laser heating module 42, for if it is determined that the temperature T is more than preset high-temperature temperature, control heating element heater continuously to add
Heat.
Preferably, preset high-temperature temperature=Ts+6 DEG C of the refrigerator design temperature.
Cool heating module 43, for if it is determined that the temperature T is in preset cooling scope, the control heating element heater cycle to add
Heat.
Preferably described cooling heating module 43 includes：
Temperature reducing unit 431, for if it is determined that the temperature T is in the preset scope that once cools, control heating element heater
By the cycle heating that once cools；It is described it is preset once cooling scope be：(Ts+3 DEG C, Ts+6 DEG C], it is described once cooling the cycle be：
Open the heating cycle that heating 19s- stops heating 5s circulations；
Reducing temperature twice unit 432, for if it is determined that the temperature T is in preset reducing temperature twice scope, control heating element heater
Heated by the reducing temperature twice cycle；The preset reducing temperature twice scope is：(Ts+1 DEG C, Ts+3 DEG C], the reducing temperature twice cycle is：
Open the heating cycle that heating 16s- stops heating 8s circulations.
Heating module 44 is kept, for if it is determined that the temperature T is in preset temperature hold in range, control heating element heater week
Phase heats.
Preferably, the holding heating module 44, including：
First keeps heating unit 441, for if it is determined that the temperature T be in preset first temperature hold in range, controlling
Heating element heater is heated by the first temperature hold period；The preset first temperature hold in range is：(Ts DEG C, Ts+1 DEG C], it is described
First temperature hold period is：Open the heating cycle that heating 14s- stops heating 10s circulations.
Second keeps heating unit 442, for if it is determined that the temperature T be in preset second temperature hold in range, controlling
Heating element heater is heated by second temperature hold period；The preset second temperature hold in range is：(Ts-0.5 DEG C, Ts], it is described
Second temperature hold period is：Open the heating cycle that heating 12s- stops heating 12s circulations.
3rd keeps heating unit 443, for if it is determined that the temperature T be in preset 3rd temperature hold in range, controlling
Heating element heater is heated by the 3rd temperature hold period；The preset 3rd temperature hold in range is：(Ts-1 DEG C, Ts-0.5 DEG C],
The 3rd temperature hold period is：Open the heating cycle that heating 11s- stops heating 13s circulations.
Heating module 45 is preheated, for if it is determined that the temperature T is in preset preheating temperature scope, control heating element heater week
Phase heats.
The preset preheating temperature scope is：(Ts-3 DEG C, Ts-1 DEG C].The preheating heating module, is specifically used for：It is determined that
The temperature T be in preset preheating temperature scope (Ts-3 DEG C, Ts-1 DEG C], control heating element heater by open heating 10s- stop plus
Heating heating cycle of hot 14s circulations, and then refrigeration system is preheated, make refrigeration system in next loop start when system
It is cold faster.When temperature T is in preset preheating temperature scope, illustrate that the temperature T of refrigerator inside is less than refrigerator preset temperature Ts, this
The duration that the Duration Ratio of Shi Kaiqi heating stops heating is short, but is not the complete process for stopping heating, also there is heating,
This can make refrigeration system be in preheated state, facilitate refrigeration system to start.
Stop heating module 46, for if it is determined that the temperature T is less than or equal to preset low temperature temperature, control heating element heater to stop
Only heat.
The preset low temperature temperature=Ts-3 DEG C.
Preferably, preset high-temperature temperature described in the present embodiment, preset cooling scope, the preset scope, once of once cooling
Cool the cycle, preset reducing temperature twice scope, the reducing temperature twice cycle, preset temperature hold in range, preset first temperature hold in range,
First temperature hold period, preset second temperature hold in range, second temperature hold period, preset 3rd temperature hold in range,
3rd temperature hold period, preset preheating temperature scope, preset low temperature temperature be not it is fixed, can be according to the actual feelings of refrigerator
Condition determines optimal parameter after carrying out test of many times.
Compared with traditional control method, a kind of thermal source control system of absorption refrigerator, refrigerator are provided using the present embodiment
The performance of each side is obviously improved, and energy consumption of refrigerator can reduce by more than 20%, and the temperature of refrigerator inside is more uniform, Traditional control
Mode is at ± 3 DEG C or so, and the new improvement control mode that the present embodiment provides can reach less than ± 1 DEG C；And when circumstance temperature is too low
When, traditional control method refrigerating chamber only maintains -10 DEG C or so, and the new improvement control mode that the present embodiment provides can reach
To less than -15 DEG C.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (8)
- A kind of 1. thermal source control method of absorption refrigerator, it is characterised in that including：Obtain the temperature T of refrigerator inside；If it is determined that the temperature T is more than preset high-temperature temperature, heating element heater laser heating is controlled；If it is determined that the temperature T is in preset cooling scope, the Duration Ratio that control heating element heater opens heating stops heating Duration length；If it is determined that the temperature T is in preset temperature hold in range, the heating of control heating element heater cycle；If it is determined that the temperature T is in preset preheating temperature scope, the Duration Ratio that control heating element heater opens heating stops The duration of heating is short；If it is determined that the temperature T is less than or equal to preset low temperature temperature, control heating element heater stops heating.
- 2. thermal source control method according to claim 1, it is characterised in that the preset high-temperature temperature=refrigerator setting temperature Ts+6 DEG C of degree；It is described that if it is determined that the temperature T is in preset cooling scope, the control heating element heater cycle heats, including：If it is determined that the temperature T is in the preset scope that once cools, control heating element heater is by the cycle heating that once cools；It is described pre- Putting once cooling scope is：(Ts+3 DEG C, Ts+6 DEG C], it is described once cooling the cycle be：Heating 19s- stopping heating 5s is opened to follow The heating cycle of ring；If it is determined that the temperature T is in preset reducing temperature twice scope, control heating element heater is heated by the reducing temperature twice cycle；It is described pre- Putting reducing temperature twice scope is：(Ts+1 DEG C, Ts+3 DEG C], the reducing temperature twice cycle is：Heating 16s- stopping heating 8s is opened to follow The heating cycle of ring；It is described that if it is determined that the temperature T is in preset temperature hold in range, the control heating element heater cycle heats, including：If it is determined that the temperature T is in preset first temperature hold in range, control heating element heater is added by the first temperature hold period Heat；The preset first temperature hold in range is：(Ts, Ts+1 DEG C], the first temperature hold period is：Open heating 14s- Stop the heating cycle of heating 10s circulations；If it is determined that the temperature T is in preset second temperature hold in range, control heating element heater is added by second temperature hold period Heat；The preset second temperature hold in range is：(Ts-0.5 DEG C, Ts], the second temperature hold period is：Open heating 12s- stops the heating cycle of heating 12s circulations；If it is determined that the temperature T is in preset 3rd temperature hold in range, control heating element heater is added by the 3rd temperature hold period Heat；The preset 3rd temperature hold in range is：(Ts-1 DEG C, Ts-0.5 DEG C], the 3rd temperature hold period is：Open and add Hot 11s- stops the heating cycle of heating 13s circulations.
- 3. thermal source control method according to claim 2, it is characterised in that：The preset preheating temperature scope is：(Ts-3 DEG C, Ts-1 DEG C]；It is described if it is determined that the temperature T is in preset preheating temperature scope, the heating of control heating element heater cycle, specifically include：If Determine the temperature T be in preset preheating temperature scope (Ts-3 DEG C, Ts-1 DEG C], control heating element heater by open heating 10s- stop Only heat heating heating cycle of 14s circulations；The preset low temperature temperature=Ts-3 DEG C.
- 4. thermal source control method according to claim 1, it is characterised in that the temperature T for obtaining refrigerator inside, specifically For：The temperature T of refrigerator inside is obtained by during cycle.
- A kind of 5. thermal source control system of absorption refrigerator, it is characterised in that including：Temperature acquisition module, for obtaining the temperature T of refrigerator inside；Laser heating module, for if it is determined that the temperature T is more than preset high-temperature temperature, control heating element heater laser heating；Cool heating module, for if it is determined that the temperature T is in preset cooling scope, control heating element heater to open holding for heating The continuous time is longer than the duration for stopping heating；Heating module is kept, for if it is determined that the temperature T is in preset temperature hold in range, the control heating element heater cycle to add Heat；Heating module is preheated, for if it is determined that the temperature T is in preset preheating temperature scope, control heating element heater to open heating Duration Ratio stop heating duration it is short；Stop heating module, for if it is determined that the temperature T is less than or equal to preset low temperature temperature, control heating element heater to stop adding Heat.
- 6. thermal source control system according to claim 5, it is characterised in that the preset high-temperature temperature=refrigerator setting temperature Ts+6 DEG C of degree；The cooling heating module includes：Temperature reducing unit, for if it is determined that the temperature T is in the preset scope that once cools, control heating element heater is by once dropping Thermoperiod heats；It is described it is preset once cooling scope be：(Ts+3 DEG C, Ts+6 DEG C], it is described once cooling the cycle be：Open heating 19s- stops the heating cycle of heating 5s circulations；Reducing temperature twice unit, for if it is determined that the temperature T is in preset reducing temperature twice scope, control heating element heater to press secondary drop Thermoperiod heats；The preset reducing temperature twice scope is：(Ts+1 DEG C, Ts+3 DEG C], the reducing temperature twice cycle is：Open heating 16s- stops the heating cycle of heating 8s circulations；The holding heating module, including：First keeps heating unit, for if it is determined that the temperature T is in preset first temperature hold in range, control heating element heater Heated by the first temperature hold period；The preset first temperature hold in range is：(Ts, Ts+1 DEG C], first temperature is protected Holding the cycle is：Open the heating cycle that heating 14s- stops heating 10s circulations；Second keeps heating unit, for if it is determined that the temperature T is in preset second temperature hold in range, control heating element heater Heated by second temperature hold period；The preset second temperature hold in range is：(Ts-0.5 DEG C, Ts], the second temperature Hold period is：Open the heating cycle that heating 12s- stops heating 12s circulations；3rd keeps heating unit, for if it is determined that the temperature T is in preset 3rd temperature hold in range, control heating element heater Heated by the 3rd temperature hold period；The preset 3rd temperature hold in range is：(Ts-1 DEG C, Ts-0.5 DEG C], the described 3rd Temperature hold period is：Open the heating cycle that heating 11s- stops heating 13s circulations.
- 7. thermal source control system according to claim 5, it is characterised in that：The preset preheating temperature scope is：(Ts-3 DEG C, Ts-1 DEG C]；The preheating heating module, is specifically used for：If it is determined that the temperature T be in preset preheating temperature scope (Ts-3 DEG C, Ts-1 DEG C], control heating element heater stops heating heating cycle of heating 14s circulations by heating 10s- is opened；The preset low temperature temperature=Ts-3 DEG C.
- 8. thermal source control system according to claim 5, it is characterised in that the temperature acquisition module, be specifically used for：Press During cycle obtains the temperature T of refrigerator inside.
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| CN201511033911.5A CN105605873B (en) | 2015-12-31 | 2015-12-31 | The thermal source control method and system of a kind of absorption refrigerator |
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| CN201511033911.5A CN105605873B (en) | 2015-12-31 | 2015-12-31 | The thermal source control method and system of a kind of absorption refrigerator |
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| CN105605873B true CN105605873B (en) | 2018-04-03 |
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| CN1122806C (en) * | 2000-01-12 | 2003-10-01 | 海尔集团公司 | Contral method of variable frequency refrigerator |
| US9250011B2 (en) * | 2011-08-26 | 2016-02-02 | Thetford Corporation | Absorption refrigerator with temperature control |
| CN102519217A (en) * | 2011-12-16 | 2012-06-27 | 合肥美菱股份有限公司 | Variable-frequency refrigerator and control method thereof |
| CN104533819B (en) * | 2014-12-23 | 2017-02-22 | 合肥美的电冰箱有限公司 | Method and device for controlling fan motor of refrigerator and refrigerator |
| CN104567268B (en) * | 2014-12-23 | 2017-06-20 | 合肥美的电冰箱有限公司 | The method for controlling fan electromotor of refrigerator, device and refrigerator |
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