CN105674684A - Control method for temperature of refrigerator - Google Patents
Control method for temperature of refrigerator Download PDFInfo
- Publication number
- CN105674684A CN105674684A CN201610100572.6A CN201610100572A CN105674684A CN 105674684 A CN105674684 A CN 105674684A CN 201610100572 A CN201610100572 A CN 201610100572A CN 105674684 A CN105674684 A CN 105674684A
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- temperature
- changing chamber
- chamber
- changing
- refrigeration
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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
- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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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
Abstract
The invention relates a control method for the temperature of a refrigerator, in particular to a control method for the temperature of a refrigerator with a temperature-varying chamber. According to the control method, after a preset temperature of a freezing chamber and a preset temperature of the temperature-varying chamber are obtained, the starting temperature and the halt temperature of the temperature-varying chamber are corrected by determining whether the absolute value of the difference value between the preset temperature of the temperature-varying chamber and the preset temperature of the freezing chamber is larger than a first preset difference value or not. By adopting the control method for the temperature of the refrigerator, the problem that a different value between the preset temperature of the temperature-varying chamber and a practical temperature in the refrigerator is large when the difference value between the preset temperature of the temperature-varying chamber and the preset temperature of the freezing chamber is large is solved; and the consistence of the practical temperature and the preset temperature in the refrigerator of the temperature-varying chamber is ensured.
Description
Technical field
The present invention relates to a kind of control method of refrigerator temperature, particularly relate to the control method of the refrigerator temperature of a kind of band temperature-changing chamber.
Background technology
Along with the day by day raising of people's living standard, the practicality of wind cooling refrigerator is progressively popularized. Wind cooling refrigerator relies on blower fan and is delivered in storage space with being circulated fast by freezing air, simultaneously in order to meet the different temperature control demand of people, generally arranges refrigeration chamber and temperature-changing chamber in existing refrigerator simultaneously.
The refrigerator of major part band temperature-changing chamber in existing market, temperature-changing chamber and refrigeration chamber all use same refrigerating evaporator to freeze. Temperature-changing chamber and refrigeration chamber need to arrange separately a temperature-sensing probe to monitor each between the temperature of room to control opening of refrigerating evaporator stop. In general, temperature-sensing probe is arranged on the place of temperature-sensitive sensitivity, if being arranged on insensitive place, the actual temperature of a room will be too low.
But, in this case, contriver finds meeting in R&D process, and there are the following problems:
When the design temperature of temperature-changing chamber and the design temperature temperature difference of refrigeration chamber are bigger, by the impact of system vaporization temperature, actual temperature in temperature-changing chamber case easily deviates design temperature, causes actual temperature consistence in temperature-changing chamber design temperature and temperature-changing chamber case poor, temperature control out of true. such as: if the design temperature of refrigeration chamber is-25 DEG C, the design temperature of temperature-changing chamber is-5 DEG C, the refrigeration requirement of temperature-changing chamber is just very little relative to refrigeration chamber, now the state of system vaporization temperature can be more prone to be conducive to maintaining state when refrigeration chamber freezes, also it is exactly freeze to the refrigeration chamber that the temperature inside the box is-25 degree, system vaporization temperature lower than-25 DEG C, can be in and compare low state such as-30 DEG C. when the door opening of temperature-changing chamber, the air-supply of very low temperature can move the temperature near temperature-changing chamber temperature-sensing probe to shutdown temperature below instantaneously, causes temperature-changing chamber to stop refrigeration, and air door is closed, and now, the actual temperature in temperature-changing chamber also may not reach actual setting demand. illustrate, assume that-3 DEG C is that (the startup-shutdown undulating quantity of temperature-changing chamber is 2 DEG C to temperature-changing chamber true temperature now, the design temperature of temperature-changing chamber is-5 DEG C), air door is-3 DEG C to the temperature in temperature-changing chamber because of probe monitors, thus door opening is triggered, but as previously mentioned, temperature near the temperature-sensing probe of temperature-changing chamber is moved to temperature-changing chamber shutdown temperature less than-7 DEG C instantaneously by the air-supply of very low temperature, air door is caused suddenly to be closed, the air-supply of this moment possible has only allowed temperature-changing chamber low 1 DEG C, true temperature turns into-4 DEG C, when-4 DEG C, refrigerating evaporator has just been shut down, in fact also should causing it to temperature-changing chamber air-supply, to fall 1 DEG C of ability more right.
Summary of the invention
The technical problem to be solved in the present invention is a kind of control method providing refrigerator temperature for the deficiencies in the prior art; by the difference relation of anticipation refrigeration chamber design temperature and temperature-changing chamber design temperature; temperature-changing chamber turn-on temperature, shutdown temperature are revised, ensure that the consistence of actual temperature and design temperature in temperature-changing chamber case.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of control method of refrigerator temperature is provided, being applied to wind cooling refrigerator, wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, and the air near vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of refrigeration chamber comprises lower than the temperature of temperature-changing chamber, control method:
Obtain refrigeration chamber design temperature and temperature-changing chamber design temperature;
Obtain the difference of temperature-changing chamber design temperature and refrigeration chamber design temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being more than or equal to the first preset difference value, described temperature-changing chamber design temperature is added, and the temperature after the first undulating quantity is as the first temperature-changing chamber turn-on temperature, described temperature-changing chamber design temperature is subtracted the temperature after the first undulating quantity as the first temperature-changing chamber shutdown temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being less than the first preset difference value, described temperature-changing chamber design temperature is added, and the temperature after the 2nd undulating quantity is as the 2nd temperature-changing chamber turn-on temperature, described temperature-changing chamber design temperature is subtracted the temperature after the 2nd undulating quantity as the 2nd temperature-changing chamber shutdown temperature;
First undulating quantity is greater than the 2nd undulating quantity.
In such scheme; by obtaining refrigeration chamber design temperature and temperature-changing chamber design temperature and both absolute difference; and this absolute difference and the first preset difference value are compared; according to comparative result, temperature-changing chamber turn-on temperature and shutdown temperature are all revised, to ensure the consistence of actual temperature and design temperature in temperature-changing chamber case.
Further, the control method of aforesaid refrigerator temperature, specifically:
Refrigeration chamber design temperature is TL, and temperature-changing chamber design temperature is TB;
First preset difference value is t1, obtain the absolute difference of TL and TB, when the absolute difference of TL and TB is more than or equal to t1, TB is added, and the temperature after the first default undulating quantity m is as the first temperature-changing chamber turn-on temperature, TB is subtracted the temperature after the first undulating quantity m preset as the first temperature-changing chamber shutdown temperature;
Obtain the absolute difference of TL and TB, when the absolute difference of TL and TB is less than t1, TB is added, and the temperature after the 2nd default undulating quantity n is as the 2nd temperature-changing chamber turn-on temperature, TB is subtracted the temperature after the 2nd undulating quantity n preset as the 2nd temperature-changing chamber shutdown temperature;
M is greater than n.
Further, m equals 1 or be greater than 1.
For solving the problems of the technologies described above, the 2nd kind of technical scheme that the present invention adopts is:
A kind of control method of refrigerator temperature is provided, being applied to wind cooling refrigerator, wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, and the air near vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of refrigeration chamber comprises lower than the temperature of temperature-changing chamber, control method:
Obtain refrigeration chamber design temperature and temperature-changing chamber design temperature;
Obtain the difference of temperature-changing chamber design temperature and refrigeration chamber design temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being more than or equal to the first preset difference value, described temperature-changing chamber design temperature is subtracted the temperature after the first undulating quantity as the first temperature-changing chamber shutdown temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being less than the first preset difference value, described temperature-changing chamber design temperature is subtracted the temperature after the 2nd undulating quantity as the 2nd temperature-changing chamber shutdown temperature;
First undulating quantity is greater than the 2nd undulating quantity.
In such scheme; by obtaining refrigeration chamber design temperature and temperature-changing chamber design temperature and both absolute difference; and this absolute difference and the first preset difference value are compared; according to comparative result, temperature-changing chamber shutdown temperature is revised, to ensure the consistence of actual temperature and design temperature in temperature-changing chamber case.
Further, the control method of aforesaid refrigerator temperature, specifically:
Refrigeration chamber design temperature is TL, and temperature-changing chamber design temperature is TB;
First preset difference value is t1, obtains the absolute difference of TL and TB, when the absolute difference of TL and TB is more than or equal to t1, TB subtracts the temperature after the first undulating quantity m preset as the first temperature-changing chamber shutdown temperature;
Obtain the absolute difference of TL and TB, when the absolute difference of TL and TB is less than t1, TB is subtracted the temperature after the 2nd undulating quantity n preset as the 2nd temperature-changing chamber shutdown temperature;
M is greater than n.
Further, m equals 1 or be greater than 1.
For solving the problems of the technologies described above, the third technical scheme that the present invention adopts is:
A kind of control method of refrigerator temperature is provided, it is applied to wind cooling refrigerator, described wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, air near described vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of described refrigeration chamber is lower than the temperature of temperature-changing chamber, it is characterized in that, described control method comprises:
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being more than or equal to the first preset difference value, when temperature-changing chamber temperature reaches the first temperature-changing chamber turn-on temperature, temperature-changing chamber is started shooting, when temperature-changing chamber temperature reaches the first temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down, and the first temperature-changing chamber turn-on temperature is greater than the first temperature-changing chamber shutdown temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being less than the first preset difference value, when temperature-changing chamber temperature reaches the 2nd temperature-changing chamber turn-on temperature, temperature-changing chamber is started shooting, when temperature-changing chamber temperature reaches the 2nd temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down, and the 2nd temperature-changing chamber turn-on temperature is greater than the 2nd temperature-changing chamber shutdown temperature;
First temperature-changing chamber turn-on temperature, the 2nd temperature-changing chamber turn-on temperature, the 2nd temperature-changing chamber shutdown temperature and the first temperature-changing chamber shutdown temperature reduce successively.
In such scheme; by the absolute difference of refrigeration chamber design temperature and temperature-changing chamber design temperature and the first preset difference value are compared; and detect the temperature value of temperature-changing chamber temperature; start according to comparative result and the temperature value control temperature-changing chamber of the temperature-changing chamber temperature that detects and shutdown, to ensure the consistence of actual temperature and design temperature in temperature-changing chamber case.
For solving the problems of the technologies described above, the 4th kind of technical scheme that the present invention adopts is:
A kind of control method of refrigerator temperature is provided, it is applied to wind cooling refrigerator, described wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, air near described vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of described refrigeration chamber is lower than the temperature of temperature-changing chamber, it is characterized in that, described control method comprises:
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and when the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is more than or equal to the first preset difference value, when temperature-changing chamber temperature reaches the first temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and when the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is less than the first preset difference value, when temperature-changing chamber temperature reaches the 2nd temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down;
2nd temperature-changing chamber shutdown temperature is greater than the first temperature-changing chamber shutdown temperature.
In such scheme; by the absolute difference of refrigeration chamber design temperature and temperature-changing chamber design temperature and the first preset difference value are compared; and detect the temperature value of temperature-changing chamber temperature; according to the shutdown of comparative result and the temperature value control temperature-changing chamber of the temperature-changing chamber temperature that detects, to ensure the consistence of actual temperature and design temperature in temperature-changing chamber case.
Compared with prior art; the invention has the beneficial effects as follows: by the difference relation of anticipation refrigeration chamber design temperature and temperature-changing chamber design temperature; temperature-changing chamber turn-on temperature, shutdown temperature are revised; solve when temperature-changing chamber design temperature and freezing design temperature difference are bigger; the problem that in temperature-changing chamber design temperature and case, actual temperature difference is bigger, ensure that the consistence of actual temperature and design temperature in temperature-changing chamber case.
Accompanying drawing explanation
Fig. 1 is the right section schematic diagram of refrigerator in the embodiment of the present invention;
Fig. 2 is the right section schematic diagram of freezer compartment of refrigerator and temperature-changing chamber in the embodiment of the present invention;
Fig. 3 is the wind chamber of freezer compartment of refrigerator and temperature-changing chamber in the embodiment of the present invention, go out air port, return air mouth schematic diagram;
Fig. 4 is the front schematic view that in the embodiment of the present invention, freezer compartment of refrigerator and temperature-changing chamber remove Men Tihou;
Fig. 5 is the left view schematic diagram analysed and observe in A-A direction in Fig. 4;
Fig. 6 is the schematic top plan view in rear connecting sealed face between cover plate and front cover plate in Fig. 5;
Fig. 7 is one of cross-sectional schematic of closed channel;
Fig. 8 is the two of the cross-sectional schematic of closed channel;
Fig. 9 is the left view schematic diagram analysed and observe in B-B direction in Fig. 4;
Figure 10 is the front door body schematic diagram of refrigerator in the embodiment of the present invention;
Figure 11 is the schematic top plan view of run-though space in the embodiment of the present invention;
Figure 12 is the control method flow diagram of refrigerator temperature in the embodiment of the present invention one;
Figure 13 is the control method flow diagram of refrigerator temperature in the embodiment of the present invention two;
Wherein, 1: refrigerating chamber; 2: refrigeration blower fan; 3: refrigeration air channel; 6: refrigeration water port; 7: freezing blower fan; 8: refrigeration chamber; 9: freezing temperature-sensing probe; 10: vaporizer; 11: run-though space; 12: the first MODs; 13: temperature-changing chamber; 14: become temperature temperature-sensing probe; 15: thermal baffle; 16: freezing wind chamber; 17: perpendicular front-axle beam; 18: interior courage; 19: on freezing, go out air port; 20: air channel foam; 21: water port; 22: in freezing, go out air port; 23: bottom, freezing wind chamber; 24: under freezing, go out air port; 25: freezing return air mouth; 26: become and temperature goes out air port; 27: front cover plate; 28: rear cover plate; 29: become in temperature and go out air port; 30: become warm air chamber; 31: under becoming temperature, go out air port; 32: become temperature return air mouth; 33: passage; 34: display panel; 35: left cold sotrage door; 36: right cold sotrage door; 37: door of refrigerator; 38: become temperature door; 39: sealing surface; 40: a part of edge of thermal baffle 15.
Embodiment
Technical scheme provided by the invention is set forth below in conjunction with Fig. 1 to Figure 13:
Embodiment one
The control method of a kind of refrigerator temperature of the present invention, it is applied to wind cooling refrigerator, wind cooling refrigerator comprises vaporizer 10, freezing blower fan 7, refrigeration chamber 8 and temperature-changing chamber 13, air near vaporizer 10 is delivered to refrigeration chamber 8 and temperature-changing chamber 13 respectively by air channel, the temperature of refrigeration chamber 8 is lower than the temperature of temperature-changing chamber 13, and this control method comprises:
Obtain refrigeration chamber 8 design temperature and temperature-changing chamber 13 design temperature;
Obtain the difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature;
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 8 design temperature, and the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is when being more than or equal to the first preset difference value, temperature-changing chamber 13 design temperature is heightened the first undulating quantity as the first temperature-changing chamber 13 turn-on temperature, temperature-changing chamber 13 design temperature is turned down the first undulating quantity as the first temperature-changing chamber 13 shutdown temperature;
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 8 design temperature, and the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is when being less than the first preset difference value, temperature-changing chamber 13 design temperature is heightened the 2nd undulating quantity as the 2nd temperature-changing chamber 13 turn-on temperature, temperature-changing chamber 13 design temperature is turned down the 2nd undulating quantity as the 2nd temperature-changing chamber 13 shutdown temperature;
First undulating quantity is greater than the 2nd undulating quantity.
The start of the temperature-changing chamber 13 described in the present embodiment and shutdown, realize by controlling the open and close of the MOD of temperature-changing chamber 13.
The control method of aforesaid refrigerator temperature is specifically:
Refrigeration chamber 8 design temperature is TL, and temperature-changing chamber 13 design temperature is TB, m and n is the first undulating quantity and the 2nd undulating quantity respectively, and m is greater than n;
T1 is first preset difference value of TB and TL;
Judging when TL is less than TB, and when the absolute difference of TB and TL is more than or equal to t1, chooses the first undulating quantity m and temperature-changing chamber 13 temperature adjusted, it is TB+m that temperature-changing chamber 13 adjusts rear turn-on temperature, and it is TB-m that temperature-changing chamber 13 adjusts rear shutdown temperature; When TL is less than TB, and when the absolute difference of TB and TL is less than t1, choosing the 2nd undulating quantity n and temperature-changing chamber 13 temperature adjusted, it is TB+n that temperature-changing chamber 13 adjusts rear turn-on temperature, and after temperature-changing chamber adjustment, shutdown temperature is TB-n.
Further, m equals 1 or be greater than 1.
M and n choose as:
If t1 is 5, if the absolute difference of TB and TL equals between 1 ~ 4 degree Celsius a numerical value, being namely less than the first preset difference value 5, the 2nd undulating quantity n of temperature-changing chamber 13 is 5, and temperature-changing chamber 13 turn-on temperature after correction is TB+5, and shutdown temperature is TB-5. If the absolute difference of TB and TL equals between 11 ~ 20 degrees Celsius a numerical value; and the absolute difference of TB and TL is greater than the first preset difference value 5; first undulating quantity m of temperature-changing chamber 13 is 10, and temperature-changing chamber 13 turn-on temperature after correction is TB+10, and shutdown temperature is TB-10.
Or also can take another kind of correcting mode, namely as, judge when TL is less than TB; and during the t1*x such as the absolute difference of TB and TL; t1*x is greater than the first preset difference value t1, if the m in previous example equals k1, now; setting the first undulating quantity m now is k1*x; temperature-changing chamber 13 temperature being revised, it is TB+k1*x that the temperature-changing chamber 13 after correction adjusts rear turn-on temperature, and it is TB-k1*x that temperature-changing chamber 13 adjusts rear shutdown temperature; n be not equal to 0 natural number, now k1 is greater than 1.
In the present embodiment, if the first preset difference value is set to 5, owing to temperature-changing chamber 13 is more big with the design temperature difference of refrigeration chamber 8, if desired the temperature of temperature-changing chamber 13 is made correction, this correction would not be a linear change, therefore, the method of calculation revised can be had for each grade of position, as the absolute difference of TB and TL is divided into two sections by t1 and t1*x, each section is adopted to the first different undulating quantitys or the 2nd undulating quantity, illustrate: refrigeration chamber 8 design temperature is-20 DEG C, temperature-changing chamber 13 design temperature is-10 DEG C, the two absolute difference is 10 DEG C, this is a shelves position, it is greater than the first preset difference value t1, " after temperature-changing chamber adjustment, turn-on temperature is TB+m in use, after temperature-changing chamber adjustment, shutdown temperature is TB-m " this kind of method of calculation, refrigeration chamber 8 design temperature is-25 DEG C, temperature-changing chamber 13 design temperature is-5 DEG C, the two absolute difference is 20 DEG C, 20 DEG C is another grade of position, it is far longer than the first preset difference value t1, when the absolute difference of TB and TL is higher than t1*x, " after temperature-changing chamber adjustment, turn-on temperature is TB+k1*x in use, after temperature-changing chamber adjustment, shutdown temperature is TB-k1*x " this kind of method of calculation.
The idiographic flow using the method control refrigerator temperature is as shown in figure 12.
In this embodiment, just fix when refrigerator manufactures owing to becoming the position of temperature temperature-sensing probe 14, when the state of system temperature determines primarily of refrigeration chamber 8, the temperature of refrigeration chamber 8 is more big on system temperature impact, such as, if the design temperature of refrigeration chamber 8 is-25 DEG C, the design temperature of temperature-changing chamber 13 is-5 DEG C, the refrigeration requirement of temperature-changing chamber 13 is just very little relative to refrigeration chamber 8, now the state of system vaporization temperature can be more prone to state when refrigeration chamber 8 freezes, also it is exactly freeze to the refrigeration chamber 8 that the temperature inside the box is-25 degree, system vaporization temperature can lower than-25 DEG C, it is in and compares low state such as-30 DEG C. when the first MOD 12 of temperature-changing chamber 13 is opened, the air-supply of very low temperature can move the temperature near the change temperature temperature-sensing probe 14 of temperature-changing chamber 13 to shutdown temperature below instantaneously, temperature-changing chamber is caused to stop refrigeration, first MOD 12 is closed, and now, the actual temperature in temperature-changing chamber 13 also may not reach actual setting demand. illustrate, assume that-3 DEG C is that (the startup-shutdown undulating quantity of temperature-changing chamber 13 is 2 DEG C to temperature-changing chamber 13 true temperature now, the design temperature of temperature-changing chamber is-5 DEG C), because probe monitors is-3 DEG C to the temperature in temperature-changing chamber 13, thus trigger the first MOD 12 to open, but as previously mentioned, temperature near the change temperature temperature-sensing probe 14 of temperature-changing chamber 13 is moved to temperature-changing chamber shutdown temperature such as less than-7 DEG C instantaneously by the air-supply of very low temperature, the first MOD 12 is caused suddenly to be closed, the air-supply of this moment possible has only allowed temperature-changing chamber 13 low 1 DEG C, true temperature turns into-4 DEG C, when-4 DEG C, vaporizer 10 has just been shut down, in fact also should causing it to temperature-changing chamber 13 air-supply, to fall 1 DEG C of ability more right.
Therefore, opening of temperature-changing chamber 13 stops controlling to need to revise along with the change of system temperature state, the refrigeration turn-on temperature of temperature-changing chamber 13 and shutdown temperature is all reduced. By the difference relation of anticipation refrigeration chamber 8 design temperature and temperature-changing chamber 13 design temperature; temperature-changing chamber 13 is opened, shutdown temperature carry out reduction type correction; solve when temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature difference are bigger, the problem that in temperature-changing chamber 13 design temperature and case, actual temperature difference is bigger. Ensure that the consistence of actual temperature and design temperature in temperature-changing chamber 13 casees.
From, the internal structure of refrigerator, being described below:
As shown in Figures 1 to 10, a kind of refrigerator, comprise refrigerating chamber 1, refrigeration chamber 8, temperature-changing chamber 13 and frostless refrigeration system, after interior courage 18, wall places vaporizer 10 towards the direction order of refrigerator door, rear cover plate 28, front cover plate 27, the thermal baffle 15 vertically placed, the internal bladder cavity body isolation of refrigerator is become refrigeration chamber 8 and the temperature-changing chamber 13 of left and right distribution by thermal baffle 15 and front cover plate 27, vaporizer 10 is across the back of refrigeration chamber 8 with temperature-changing chamber 13, space for being between interior courage 18 Hou Bi and rear cover plate 28 above vaporizer 10, the air channel foam 20 of hollow out is placed between front cover plate 27 and rear cover plate 28, it is sealing surface between front cover plate 27 and rear cover plate 28 bottom, by forming freezing wind chamber 16 between the hollow out of air channel foam 20 and front cover plate 27 and rear cover plate 28 and become warm air chamber 30, arrange before and after freezing wind chamber 16 and refrigeration chamber 8, become and arrange before and after warm air chamber 30 and temperature-changing chamber 13, rear cover plate 28 has freezing blower fan 7 rear end of assembling and hole for ventilating, the front end of freezing blower fan 7 is placed in freezing wind chamber 16, space above vaporizer 10 stores the air after evaporator 10 heat exchange, after freezing blower fan 7 starts, air in this space is pumped into freezing wind chamber 16, freezing blower fan 7 is other to be provided with for separate freezing wind chamber 16 and the first MOD 12 becoming warm air chamber 30, when the first MOD 12 is opened, air in this space is also pumped into and becomes warm air chamber 30 by the freezing blower fan 7 in operation.The front cover plate 27 of refrigeration chamber 8 side is arranged freezing go out air port, the front cover plate 27 of temperature-changing chamber 13 side arranges change temperature and goes out air port, under being positioned at the front cover plate of refrigeration chamber 8 side, 27 sides are provided with the freezing return air mouth 25 that the wind of refrigeration chamber 8 is sent to vaporizer 10, are positioned at the change temperature return air mouth 32 being provided with below the front cover plate 27 of temperature-changing chamber 13 side and the wind of temperature-changing chamber 13 being sent to vaporizer 10. Being provided with a sealing surface 39 between rear cover plate 28 bottom and front cover plate 27, from positive apparent direction, this sealing surface 39 is the right side that the left side from two cover plates is through to two cover plates. To prevent return air is altered in the space walked between front cover plate 27 and rear cover plate 28. Concrete, this sealing surface 39 can be formed towards front cover plate 27 extended surface by rear cover plate 28 low side, or front cover plate 27 is formed towards the extended surface of rear cover plate 28 in vaporizer 10 bottom, also or, the extended surface that forward and backward cover plate is correlated with is assembled.
Vaporizer 10 is placed in the back of refrigeration chamber 8 with temperature-changing chamber 13, vaporizer 10 is across the back of refrigeration chamber 8 with temperature-changing chamber 13, open the first MOD 12, under the effect of freezing blower fan, air enters and becomes warm air chamber 30, and enter temperature-changing chamber 13 by going out air port, at the wind of temperature-changing chamber 13 after utilizing by return air mouth by the vaporizer 10 at temperature-changing chamber 13 back, upwards flow along the evaporator fin erect, thus obtain by the temperature-changing chamber 13 quick heat exchange of return air, by adjusting the effective heat exchange area distribution proportion of vaporizer 10 room between two, the heat of refrigeration chamber 8 with temperature-changing chamber 13 can be controlled, when therefore can realize the two volume distribution proportion difference, temperature-changing chamber 13 can have the lower limit temperature identical with refrigeration chamber 8. when refrigeration chamber 8 and temperature-changing chamber 13 are equally big, vaporizer 10 is when the area that refrigeration chamber 8 and temperature-changing chamber 13 distribute is also identical, it is possible to the minimum temperature realizing temperature-changing chamber 13 reaches the lowest temperature of refrigeration chamber 8.
Be positioned at refrigeration chamber 8 side front cover plate 27 on be provided with freezing temperature-sensing probe 9, be positioned at temperature-sensitive room 13 side front cover plate 27 on be provided with become temperature temperature-sensing probe 14. Arranging freezing temperature-sensing probe 9 can the change of precise monitoring compartment temperature.
As shown in Figure 3, being positioned at the air channel foam 20 below freezing blower fan 7 and the first MOD 12 and have water port 21, air channel foam 20 hollow out of water port 21 left and right sides forms funnel-form, and water port 21 is positioned at the bottom of funnel-form. This structure makes draining more fast smooth and easy. Settle it is preferred that the first MOD 12 tends to water port 21 with tilting with the angle of offset from perpendicular 1～45 degree. The angle that this kind tilts can make the moisture content becoming side, warm air chamber 30 discharge better.
Freezing go out air port comprise be arranged in refrigeration chamber 8 top freezing on go out air port 19, be positioned in the middle part of refrigeration chamber freezing go out air port 22, be positioned at refrigeration chamber bottom freezing under go out air port 24, go out air port 24 under freezing and be positioned at the position corresponding to bottom, freezing wind chamber 23, described change temperature go out air port comprise be arranged in the change temperature on temperature-changing chamber top to go out air port 26, be positioned at the change temperature in the middle part of temperature-changing chamber and go out air port 29, be positioned at the change temperature of temperature-changing chamber bottom under go out air port 31. In this structure, owing to going out air port in three, upper, middle and lower position branch, air can be made comparatively evenly to be discharged in room, chamber, evenly make decrease in temperature wherein fast.
As shown in Figure 10, refrigeration chamber 8 and temperature-changing chamber 13 arrange a door body and door of refrigerator 37 separately and become temperature door 38, two Men Ticheng to opening structure.Refrigeration chamber 8 is provided with refrigerating chamber 1 with the top of temperature-changing chamber 13, and refrigerating chamber 1 is provided with two fan doors, and this two fans door is also in opening structure. This structure makes refrigerator have outward appearance attractive in appearance, is convenient for people to switch door body simultaneously.
Preferably, vaporizer 10 across mode can be through the back of refrigeration chamber 8 with temperature-changing chamber 13, namely the most left end of vaporizer 10 arrives at the inner left wall of interior courage 18, and the most right-hand member of vaporizer 10 arrives at the inner right wall of interior courage 18. Such setting can so that the return air of each room, chamber can pass through fin heat exchange, avoid the air without heat exchange to be entered interior courage 18 Hou Bi above vaporizer 10 and the space between rear cover plate 28 by the space between vaporizer about 10 face and wall of inner container and again enter in circulation, ensure that the maximum heat exchange of return air.
In addition, as shown in Fig. 1 to 11, it is formed on vaporizer 10 length direction, between the bottom surface of vaporizer 10 and interior courage 18 Hou Bi, interior courage 18 diapire, the run-though space 11 run through. Can know from Figure 11, the form that this run-though space 11 is possible, when the effect of sealing surface 39 is return air, the wind returned is avoided to enter the space between front cover plate 27 and rear cover plate 28, do not enter and vaporizer 10 carries out heat exchange, when there is this run-though space 11, freezing return air mouth 25 and become and there is a passage 33 between temperature return air mouth 32, the structure of passage 33 can be one of following:
(1) the extension portion of vaporizer 10 bottom surface and interior courage 18 wall, sealing surface 39 and front cover plate 27 bottom surrounds passage 33, or
(2) vaporizer 10 bottom surface and interior courage 18 wall, sealing surface 39 surround passage 33, or
(3) a part of edge 40 of vaporizer 10 bottom surface and interior courage 18 wall, sealing surface 39 and thermal baffle 15 surrounds passage 33, and passage 33 is at freezing return air mouth 25 and becomes between temperature return air mouth 32.
Do not support full between the bottom surface of vaporizer 10 and interior courage 18 diapire, but have certain distance from interior courage 18 diapire, under the thermal baffle 15 erect combines, as shown in Figure 7, namely it is the 1st kind of structure of passage 33, namely it is the 2nd kind of structure of passage 33 as shown in Figure 8, as shown in Figure 9, namely it is the 3rd kind of structure of passage 33, the section observing B-B direction can be seen, the bottom surface of vaporizer 10, the sealing surface 39 formed between front cover plate 27 and the bottom of rear cover plate 28, thermal baffle 15 is near a part of edge 40 of front cover plate 27, one section of the rear wall transverse direction of interior courage 18 and diapire form passage 33 closed on a section, above-mentioned passage the widest width in the positive apparent direction of refrigerator is the distance become between temperature return air mouth 32 left end to freezing return air mouth 25 right-hand member.
In such an embodiment, if the first MOD 12 of temperature-changing chamber is closing condition, being also namely temperature-changing chamber 13 when not needing to carry out temperature variation, the evaporator fin that a part of return air of refrigeration chamber 8 enters that side of temperature-changing chamber 13 by passage 33 carries out heat exchange.
Owing to the vaporizer 10 of temperature-changing chamber 8 with refrigeration chamber 13 behind is an entirety, when starting vaporizer 10, no matter it is temperature-changing chamber 8 or the evaporator fin of that side of refrigeration chamber 13, in fact all in startup state, the demand of heat exchanged by refrigeration chamber 8 is bigger, if can be used by the vaporizer 10 that side of temperature-changing chamber 13 is idle is the better selection making full use of the energy, ensure that the working efficiency of refrigeration system. Therefore, a passage 33 is set so that a part of return air that freezing return air mouth 25 enters enters in the fin of the vaporizer 10 of temperature-changing chamber 13 side and carries out heat exchange.
When temperature-changing chamber 13 has lower temperature requirements, when first MOD 12 is opened, the return air of temperature-changing chamber 13 all will through the evaporator fin of its that side, therefore temperature-changing chamber 13 side air quantity is substantially suitable with the heat of refrigeration chamber 8 side, therefore when refrigeration chamber 8 and temperature-changing chamber 13 volume close to time, the lower limit temperature of temperature-changing chamber 13 can be suitable with refrigeration chamber 8 lower limit temperature.
Preferably, it is possible to arrange the 2nd MOD at passage 33 place, the return air that refrigeration chamber 8 and temperature-changing chamber 13 can be avoided so respective walks the vaporizer 10 to the respective side of temperature-changing chamber 13 and refrigeration chamber 8 by passage 33, to avoid temperature control inaccurate.
Embodiment two
The control method of a kind of refrigerator temperature of the present invention, it is applied to wind cooling refrigerator, wind cooling refrigerator comprises vaporizer 10, freezing blower fan 7, refrigeration chamber 8 and temperature-changing chamber 13, air near vaporizer 10 is delivered to refrigeration chamber 8 and temperature-changing chamber 13 respectively by air channel, the temperature of refrigeration chamber 8 is lower than the temperature of temperature-changing chamber 13, and this control method comprises:
Obtain refrigeration chamber 8 design temperature and temperature-changing chamber 13 design temperature;
Obtain the difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature;
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 8 design temperature, and the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is when being more than or equal to the first preset difference value, described temperature-changing chamber 13 design temperature is subtracted the temperature after the first undulating quantity as the first temperature-changing chamber 13 shutdown temperature;
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 8 design temperature, and the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is when being less than the first preset difference value, described temperature-changing chamber 13 design temperature is subtracted the temperature after the 2nd undulating quantity as the 2nd temperature-changing chamber 13 shutdown temperature;
Described first undulating quantity is greater than described 2nd undulating quantity, and the first undulating quantity equals 1 or be greater than 1.
The start of the temperature-changing chamber 13 described in the present embodiment and shutdown, realize by controlling the open and close of the MOD of temperature-changing chamber 13.
The idiographic flow using the method control refrigerator temperature is as shown in figure 13.
The difference of the present embodiment and embodiment one is: is only revised by temperature-changing chamber 13 shutdown temperature, and is not revised by temperature-changing chamber 13 turn-on temperature.
Embodiment three
The control method of a kind of refrigerator temperature of the present invention, it is applied to wind cooling refrigerator, wind cooling refrigerator comprises vaporizer 10, freezing blower fan 7, refrigeration chamber 8 and temperature-changing chamber 13, air near vaporizer 10 is delivered to refrigeration chamber 8 and temperature-changing chamber 13 respectively by air channel, the temperature of refrigeration chamber 8 is lower than the temperature of temperature-changing chamber 13, and this control method comprises:
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 8 design temperature, and the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is when being more than or equal to the first preset difference value, when temperature-changing chamber 13 temperature reaches the first temperature-changing chamber turn-on temperature, temperature-changing chamber 13 is started shooting, when temperature-changing chamber 13 temperature reaches the first temperature-changing chamber shutdown temperature, temperature-changing chamber 13 is shut down, and the first temperature-changing chamber turn-on temperature is greater than the first temperature-changing chamber shutdown temperature;
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 8 design temperature, and the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is when being less than the first preset difference value, when temperature-changing chamber 13 temperature reaches the 2nd temperature-changing chamber turn-on temperature, temperature-changing chamber 13 is started shooting, when temperature-changing chamber 13 temperature reaches the 2nd temperature-changing chamber shutdown temperature, temperature-changing chamber 13 is shut down, and the 2nd temperature-changing chamber turn-on temperature is greater than the 2nd temperature-changing chamber shutdown temperature;
First temperature-changing chamber turn-on temperature, the 2nd temperature-changing chamber turn-on temperature, the 2nd temperature-changing chamber shutdown temperature and the first temperature-changing chamber shutdown temperature reduce successively.
The start of the temperature-changing chamber 13 described in the present embodiment and shutdown, realize by controlling the open and close of the MOD of temperature-changing chamber 13.
Embodiment three is identical with embodiment one principle, temperature-changing chamber 13 turn-on temperature and shutdown temperature is all revised.
Embodiment four
The control method of a kind of refrigerator temperature of the present invention, it is applied to wind cooling refrigerator, wind cooling refrigerator comprises vaporizer 10, freezing blower fan 7, refrigeration chamber 8 and temperature-changing chamber 13, air near vaporizer 10 is delivered to refrigeration chamber 8 and temperature-changing chamber 13 respectively by air channel, the temperature of refrigeration chamber 8 is lower than the temperature of temperature-changing chamber 13, and this control method comprises:
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 8 design temperature, and the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is when being more than or equal to the first preset difference value, when temperature-changing chamber 13 temperature reaches the first temperature-changing chamber shutdown temperature, temperature-changing chamber 13 is shut down;
When temperature-changing chamber 13 design temperature is greater than refrigeration chamber 13 design temperature, and when the absolute difference of temperature-changing chamber 13 design temperature and refrigeration chamber 8 design temperature is less than the first preset difference value, when temperature-changing chamber 13 temperature reaches the 2nd temperature-changing chamber shutdown temperature, temperature-changing chamber 13 is shut down;
2nd temperature-changing chamber shutdown temperature is greater than the first temperature-changing chamber shutdown temperature.
The start of the temperature-changing chamber 13 described in the present embodiment and shutdown, realize by controlling the open and close of the MOD of temperature-changing chamber 13.
Embodiment four is identical with embodiment two, is only revised by temperature-changing chamber 13 shutdown temperature, and is not revised by temperature-changing chamber 13 turn-on temperature.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without the need to also cannot all enforcement modes be given exhaustive. All any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within the protection domain of the claims in the present invention.
Claims (8)
1. the control method of a refrigerator temperature, it is applied to wind cooling refrigerator, described wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, air near described vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of described refrigeration chamber is lower than the temperature of temperature-changing chamber, it is characterized in that, described control method comprises:
Obtain refrigeration chamber design temperature and temperature-changing chamber design temperature;
Obtain the difference of temperature-changing chamber design temperature and refrigeration chamber design temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being more than or equal to the first preset difference value, described temperature-changing chamber design temperature is added, and the temperature after the first undulating quantity is as the first temperature-changing chamber turn-on temperature, described temperature-changing chamber design temperature is subtracted the temperature after the first undulating quantity as the first temperature-changing chamber shutdown temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being less than the first preset difference value, described temperature-changing chamber design temperature is added, and the temperature after the 2nd undulating quantity is as the 2nd temperature-changing chamber turn-on temperature, described temperature-changing chamber design temperature is subtracted the temperature after the 2nd undulating quantity as the 2nd temperature-changing chamber shutdown temperature;
Described first undulating quantity is greater than described 2nd undulating quantity.
2. the control method of a kind of refrigerator temperature according to claim 1, it is characterised in that, described control method specifically:
Refrigeration chamber design temperature is TL, and temperature-changing chamber design temperature is TB;
First preset difference value is t1, obtain the absolute difference of TL and TB, when the absolute difference of TL and TB is more than or equal to t1, TB is added, and the temperature after the first default undulating quantity m is as the first temperature-changing chamber turn-on temperature, TB is subtracted the temperature after the first undulating quantity m preset as the first temperature-changing chamber shutdown temperature;
Obtain the absolute difference of TL and TB, when the absolute difference of TL and TB is less than t1, TB is added, and the temperature after the 2nd default undulating quantity n is as the 2nd temperature-changing chamber turn-on temperature, TB is subtracted the temperature after the 2nd undulating quantity n preset as the 2nd temperature-changing chamber shutdown temperature;
Described m is greater than described n.
3. the control method of a kind of refrigerator temperature according to claim 2, it is characterised in that, described m equals 1 or be greater than 1.
4. the control method of a refrigerator temperature, it is applied to wind cooling refrigerator, described wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, air near described vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of described refrigeration chamber is lower than the temperature of temperature-changing chamber, it is characterized in that, described control method comprises:
Obtain refrigeration chamber design temperature and temperature-changing chamber design temperature;
Obtain the difference of temperature-changing chamber design temperature and refrigeration chamber design temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being more than or equal to the first preset difference value, described temperature-changing chamber design temperature is subtracted the temperature after the first undulating quantity as the first temperature-changing chamber shutdown temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being less than the first preset difference value, described temperature-changing chamber design temperature is subtracted the temperature after the 2nd undulating quantity as the 2nd temperature-changing chamber shutdown temperature;
Described first undulating quantity is greater than described 2nd undulating quantity.
5. the control method of a kind of refrigerator temperature according to claim 4, it is characterised in that, described control method specifically:
Refrigeration chamber design temperature is TL, and temperature-changing chamber design temperature is TB;
First preset difference value is t1, obtains the absolute difference of TL and TB, when the absolute difference of TL and TB is more than or equal to t1, TB subtracts the temperature after the first undulating quantity m preset as the first temperature-changing chamber shutdown temperature;
Obtain the absolute difference of TL and TB, when the absolute difference of TL and TB is less than t1, TB is subtracted the temperature after the 2nd undulating quantity n preset as the 2nd temperature-changing chamber shutdown temperature;
Described m is greater than described n.
6. the control method of a kind of refrigerator temperature according to claim 5, it is characterised in that, described m equals 1 or be greater than 1.
7. the control method of a refrigerator temperature, it is applied to wind cooling refrigerator, described wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, air near described vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of described refrigeration chamber is lower than the temperature of temperature-changing chamber, it is characterized in that, described control method comprises:
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being more than or equal to the first preset difference value, when temperature-changing chamber temperature reaches the first temperature-changing chamber turn-on temperature, temperature-changing chamber is started shooting, when temperature-changing chamber temperature reaches the first temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down, and the first temperature-changing chamber turn-on temperature is greater than the first temperature-changing chamber shutdown temperature;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is when being less than the first preset difference value, when temperature-changing chamber temperature reaches the 2nd temperature-changing chamber turn-on temperature, temperature-changing chamber is started shooting, when temperature-changing chamber temperature reaches the 2nd temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down, and the 2nd temperature-changing chamber turn-on temperature is greater than the 2nd temperature-changing chamber shutdown temperature;
First temperature-changing chamber turn-on temperature, the 2nd temperature-changing chamber turn-on temperature, the 2nd temperature-changing chamber shutdown temperature and the first temperature-changing chamber shutdown temperature reduce successively.
8. the control method of a refrigerator temperature, it is applied to wind cooling refrigerator, described wind cooling refrigerator comprises vaporizer, blower fan, refrigeration chamber and temperature-changing chamber, air near described vaporizer is delivered to refrigeration chamber and temperature-changing chamber respectively by air channel, the temperature of described refrigeration chamber is lower than the temperature of temperature-changing chamber, it is characterized in that, described control method comprises:
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and when the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is more than or equal to the first preset difference value, when temperature-changing chamber temperature reaches the first temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down;
When temperature-changing chamber design temperature is greater than refrigeration chamber design temperature, and when the absolute difference of temperature-changing chamber design temperature and refrigeration chamber design temperature is less than the first preset difference value, when temperature-changing chamber temperature reaches the 2nd temperature-changing chamber shutdown temperature, temperature-changing chamber is shut down;
2nd temperature-changing chamber shutdown temperature is greater than the first temperature-changing chamber shutdown temperature.
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| CN109764603A (en) * | 2018-12-28 | 2019-05-17 | 青岛海尔股份有限公司 | Refrigerator and its control method |
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