CN104296493B - A kind of wide climate zone energy-saving freezer - Google Patents

A kind of wide climate zone energy-saving freezer Download PDF

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Publication number
CN104296493B
CN104296493B CN201410533389.6A CN201410533389A CN104296493B CN 104296493 B CN104296493 B CN 104296493B CN 201410533389 A CN201410533389 A CN 201410533389A CN 104296493 B CN104296493 B CN 104296493B
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Prior art keywords
temperature
refrigerator
compressor
controller
difference
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CN104296493A (en
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陈国良
叶闽平
杨波
程凯
何广
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Hisense Ronshen Guangdong Freezer Co Ltd
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Hisense Ronshen Guangdong Freezer Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/14Sensors measuring the temperature outside the refrigerator or freezer

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The present invention relates to refrigeration technology field, the energy-saving freezer used more particularly, to a kind of applicable wide climate zone, including refrigerator box body heat-insulation layer, refrigeration system, control system;Wherein refrigeration system includes compressor, condenser, capillary tube and the vaporizer connected successively with pipeline, and control system includes temperature-sensitive module, temperature sensor, MCU controller, temperature controller and the compressor being sequentially connected electrically.Refrigerator of the present invention can be according to the change of ambient temperature Te, the temperature compensation module arranged by MCU controller, control on-off temperature difference and the start-stop ratio of freezer compressor, thus can effectively reduce the start-stop ratio of freezer compressor under high ambient temperatures, shorten the available machine time in each cycle;At a temperature of low temperature environment, it is to avoid compressor startup-shutdown is frequent, both can reduce the energy consumption of refrigerator, improves the performance of refrigerator and extends compressor service life, reduces and complains risk and expense after sale.

Description

A kind of wide climate zone energy-saving freezer
Technical field
The present invention relates to refrigeration technology field, the energy-saving freezer used more particularly, to a kind of applicable wide climate zone.
Background technology
Along with growth in the living standard, the use of ice-cold product is more and more extensive.How to make ice-cold product energy-conservation and the problem being to be badly in need of solving that increases the service life.Compressor is the critical component of refrigerator device, and the maintenance to compressor reliability is most important.
Current Freezer Products is all the duty being controlled compressor by temperature controller, owing to the on-off temperature difference of conventional temperature controller is certain, causes single inner compressor available machine time in start-stop cycle and service factor to be affected the biggest by ambient temperature.When ambient temperature is higher, refrigerator needs bigger refrigerating capacity, and such compressor is accomplished by running for a long time, increases the available machine time, and compressor operating coefficient is the highest, and long time running causes the energy consumption of refrigerator the biggest;When the temperature of the surroundings is low, the refrigerating capacity that refrigerator needs is less, will shut down after compressor start in the short time, shortens owing to running the time, causes high frequent to start, thus shorten the service life of compressor.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, a kind of energy-saving freezer that can be properly functioning under severe weather conditions is provided, the startup-shutdown temperature difference of temperature controller can be adjusted according to the change of ambient temperature, an offset is increased in on-off temperature difference, the service factor of compressor is regulated by on-off temperature difference offset, can make the compressor can be with normal startup-shutdown periodic duty under high temperature and low temperature environment, effectively reduce energy consumption and the fault rate of compressor of refrigerator, extend the service life of product, the relevant risk reducing market to complain and to produce and expense, there is good economic benefit.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
Thering is provided the refrigerator that a kind of applicable wide climate zone uses, including refrigerator box body heat-insulation layer, refrigeration system, control system, wherein refrigeration system includes compressor, condenser, capillary tube and the vaporizer being sequentially connected with;Including the temperature-sensitive module being sequentially connected electrically, temperature sensor, MCU controller, temperature controller, compressor, when refrigerator operation, it is controlled in the following manner:
A. refrigerator work is started;
B. ambient temperature Te that the sensing of temperature-sensitive module is extraneous is utilized;
C., step b recording Te and passes to MCU controller by temperature sensor, MCU controller controls the working condition of temperature controller in refrigerator according to the change of Te;Described MCU controller is internally provided with temperature compensation module, and the on-off temperature difference △ T that can make temperature controller is the value fluctuated at optimum setting value △ T3, and the action step of temperature compensation module is as follows:
(1) as Te > 43 DEG C time, temperature compensation module makes on-off temperature difference △ T1 reduce α, wherein 1≤α≤3 DEG C, i.e. △ T1=△ T3-α;
(2) < during Te≤43 DEG C, temperature compensation module makes on-off temperature difference △ T2 reduce β, wherein 0 < β≤2 DEG C, i.e. △ T2=△ T3-β when 32 DEG C;
(3) < during Te≤32 DEG C, the on-off temperature difference △ T3 of temperature controller is optimum setting value when 16 DEG C;
(4) when Te≤16 DEG C, temperature compensation module makes on-off temperature difference △ T4 increase γ, wherein 0 < γ≤2 DEG C, △ T4=△ T3+ γ;
D. when in-cabinet temperature arrives the design temperature of temperature controller, compressor shutdown.
Refrigerator belonging to the present invention, it is electrically connected by temperature-sensitive module, temperature sensor, MCU controller, temperature controller, compressor, utilize ambient temperature Te that the temperature-sensitive module sensing outside refrigerator box body is extraneous, by temperature sensor, temperature signal Te is passed to MCU controller, MCU controller controls the temperature controller on-off temperature difference of refrigerator according to the change of Te, thus controls the start-stop situation of compressor.By MCU controller, can reach to control the effect of compressor optimal start-stop ratio.
One of improving, described temperature controller includes that turn-on temperature Td and shutdown temperature T, the difference of described turn-on temperature Td and shutdown temperature T are △ T;Described MCU controller controls the start-stop ratio of compressor by controlling the temperature difference △ T of temperature controller.
Further, when described ambient temperature Te is 16 DEG C ~ 32 DEG C, the on-off temperature difference of temperature controller is optimum setting value △ T3, and now compression function works by normal service factor.And when ambient temperature is higher than 32 DEG C, the relation of the turn-on temperature Td and shutdown temperature T of temperature controller is T=Td ~ △ T, when ambient temperature is less than 32 DEG C, the relation of the turn-on temperature Td and shutdown temperature T of temperature controller is T=Td+ △ T.
Alternatively, described optimum setting value △ T3 is 6 DEG C ~ 10 DEG C, and concrete setup parameter determines according to refrigeration system and the warming method of refrigerator.
Compared with prior art, the invention has the beneficial effects as follows:
On the basis of tradition refrigerator, add the control system controlling temperature controller start-stop, including the temperature-sensitive module being sequentially connected electrically, temperature sensor, MCU controller, temperature controller, compressor, utilize ambient temperature Te that the temperature-sensitive module sensing outside refrigerator box body is extraneous, by temperature sensor, temperature signal Te is passed to MCU controller, MCU controller is internally provided with temperature compensation module, MCU controller controls the working condition of temperature controller in refrigerator according to the change of Te, and the start-stop situation of compressor is to be determined by the working condition of temperature controller.
Refrigerator belonging to the present invention: can effectively reduce the start-stop ratio of freezer compressor under high ambient temperatures, shorten the available machine time in each cycle;At a temperature of low temperature environment, it is to avoid compressor startup-shutdown is frequent, both can reduce the energy consumption of refrigerator, improves the performance of refrigerator and extends compressor service life, reduces and complains risk and expense after sale.
The present invention is reasonable in design, simple in construction, and low cost is easy to use, is especially suitable for the climate type that comparison is harsh, at a temperature of very low ambient temperature and the highest environment can the operation of normal table, there is good Social benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the control method of refrigerator.
Fig. 2 is the relation schematic diagram between on-off temperature difference and the ambient temperature of temperature controller.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.Wherein, being merely cited for property of accompanying drawing illustrates, expression is only schematic diagram, rather than pictorial diagram, it is impossible to it is interpreted as the restriction to this patent;In order to embodiments of the invention are better described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;It will be understood by those skilled in the art that some known features and explanation thereof may will be understood by omission in accompanying drawing.
The corresponding same or analogous parts of same or analogous label in the accompanying drawing of the embodiment of the present invention;In describing the invention, it will be appreciated that, if have term " on ", D score, " left ", orientation or the position relationship of the instruction such as " right " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore term the being merely cited for property explanation of position relationship described in accompanying drawing, it is not intended that the restriction to this patent, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment 1
Being the first embodiment of refrigerator of the present invention as shown in Figure 1 to Figure 2, change temperature-sensitive module 1 that the control method of refrigerator includes being sequentially connected electrically, temperature sensor 2, MCU controller 3, temperature controller 4, compressor 5, it includes following job step:
A. refrigerator work is started;
B. temperature-sensitive module 1 is utilized to sense ambient temperature Te in the external world;
C., step b recording Te and passes to MCU controller 3 by temperature sensor 2, MCU controller 3 controls the working condition of temperature controller 4 in refrigerator according to the change of Te;Described MCU controller 3 is internally provided with temperature compensation module, and the on-off temperature difference △ T that can make temperature controller 4 is the value fluctuated at optimum setting value △ T3;The action step of temperature compensation module is as follows:
(1) as Te > 43 DEG C time, temperature compensation module makes on-off temperature difference △ T1 reduce α, wherein 1≤α≤3 DEG C, i.e. △ T1=△ T3-α;
(2) < during Te≤43 DEG C, temperature compensation module makes on-off temperature difference △ T2 reduce β, wherein 0 < β≤2 DEG C, i.e. △ T2=△ T3-β when 32 DEG C;
(3) < during Te≤32 DEG C, the on-off temperature difference △ T3 of temperature controller is optimum setting value when 16 DEG C;
(4) when Te≤16 DEG C, temperature compensation module makes on-off temperature difference △ T4 increase γ, wherein 0 < γ≤2 DEG C, △ T4=△ T3+ γ;
D. when in-cabinet temperature arrives the design temperature of temperature controller, compressor shutdown.
Wherein, temperature controller 4 includes turn-on temperature Td and shutdown temperature T, and the difference of turn-on temperature Td and shutdown temperature T is △ T;MCU controller 3 controls the start-stop of compressor 5 by controlling the temperature difference △ T of temperature controller 4.When ambient temperature Te is 16 DEG C ~ 32 DEG C, the on-off temperature difference of temperature controller 4 is optimum setting value △ T3, and now compressor 5 can be run by normal start-stop ratio.
Wherein, optimum setting value △ T3 is 6 DEG C ~ 10 DEG C, and concrete setup parameter determines according to refrigeration system and the warming method of refrigerator.
Embodiment 2
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, 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 also cannot all of embodiment be given exhaustive.All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, within should be included in the protection domain of the claims in the present invention.

Claims (5)

1. one kind wide climate zone energy-saving freezer, it is characterised in that including refrigerator box body heat-insulation layer, refrigeration system, control system, wherein refrigeration system includes compressor, condenser, capillary tube and the vaporizer being sequentially connected with;Temperature-sensitive module (1) that control system includes being sequentially connected electrically, temperature sensor (2), MCU controller (3), temperature controller (4), compressor (5), during refrigerator work, including following job step:
A. refrigerator work is started;
B. ambient temperature Te that temperature-sensitive module (1) sensing is extraneous is utilized;
C., step (b) recording Te and passes to MCU controller (3) by temperature sensor (2), MCU controller (3) controls the on-off temperature difference of refrigerator temperature controller (4) according to the change of Te;Described MCU controller (3) is internally provided with temperature compensation module, and the on-off temperature difference △ T that can make temperature controller (4) is the value fluctuated at optimum setting value △ T3;The action step of temperature compensation module is as follows:
(1) as Te > 43 DEG C time, temperature compensation module makes on-off temperature difference △ T1 reduce α, wherein 1≤α≤3 DEG C, i.e. △ T1=△ T3-α;
(2) < during Te≤43 DEG C, temperature compensation module makes on-off temperature difference △ T2 reduce β, wherein 0 < β≤2 DEG C, i.e. △ T2=△ T3-β when 32 DEG C;
(3) < during Te≤32 DEG C, the on-off temperature difference △ T3 of temperature controller is optimum setting value when 16 DEG C;
(4) when Te≤16 DEG C, temperature compensation module makes on-off temperature difference △ T4 increase γ, and wherein 0 < γ≤2 DEG C, it may be assumed that △ T4=△ T3+ γ;
D. the start-stop situation of compressor (5) is controlled by temperature controller (4).
Refrigerator the most according to claim 1, it is characterised in that described temperature controller (4) includes that turn-on temperature Td and shutdown temperature T, the difference of described turn-on temperature Td and shutdown temperature T are △ T;Described MCU controller (3) controls the start-stop of compressor (5) by controlling the temperature difference △ T of temperature controller (4).
Refrigerator the most according to claim 2, it is characterised in that when described ambient temperature Te is 16 DEG C ~ 32 DEG C, the on-off temperature difference of temperature controller (4) is optimum setting value △ T3, and now compressor (5) can compare work by optimal start-stop.
Refrigerator the most according to claim 3, it is characterised in that described optimum setting value △ T3 is 6 DEG C ~ 10 DEG C, and concrete setup parameter determines according to refrigeration system and the warming method of refrigerator.
5. according to the refrigerator described in any one of claim 1-3, it is characterised in that in-cabinet temperature is determined by temperature controller, when in-cabinet temperature arrives the design temperature of temperature controller, compressor shutdown.
CN201410533389.6A 2014-10-11 2014-10-11 A kind of wide climate zone energy-saving freezer Active CN104296493B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015211961A1 (en) * 2015-06-26 2016-12-29 BSH Hausgeräte GmbH Refrigeration appliance and operating method for it
CN107101451B (en) * 2017-04-26 2019-12-10 Tcl家用电器(合肥)有限公司 refrigerator and refrigeration control method and device thereof
CN108759289B (en) * 2018-05-18 2020-10-23 Tcl家用电器(合肥)有限公司 Refrigerator temperature control method and device, refrigerator and storage medium
IT201900002315A1 (en) * 2019-02-18 2020-08-18 Univ Degli Studi Di Salerno METHOD AND REGULATION GROUP OF A REFRIGERATOR SYSTEM
CN110296560B (en) * 2019-06-12 2021-09-03 合肥美的电冰箱有限公司 Method and device for controlling starting and stopping temperature points of refrigerator compressor and refrigerator
CN112524852B (en) * 2020-12-03 2022-05-17 中电海康集团有限公司 Self-adaptive frequency conversion method and system of refrigeration compressor

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CN102878776A (en) * 2012-10-25 2013-01-16 合肥美的荣事达电冰箱有限公司 Refrigerator and control method thereof
KR20130037531A (en) * 2011-10-06 2013-04-16 위니아만도 주식회사 Method for power saving motion of refrigerator
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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1250867A (en) * 1999-09-14 2000-04-19 海尔集团公司 Temp. control method for refrigerator and electric refrigerator using said method
CN1548893A (en) * 2003-05-08 2004-11-24 河南新飞电器有限公司 Control method of refrigerator temperature
CN101408775A (en) * 2007-10-12 2009-04-15 苏州三星电子有限公司 Refrigerator temperature control method
CN102345965A (en) * 2010-08-02 2012-02-08 海信(北京)电器有限公司 All-weather energy saving method and all-weather energy saving device for refrigerator and all-weather energy saving refrigerator
KR20130037531A (en) * 2011-10-06 2013-04-16 위니아만도 주식회사 Method for power saving motion of refrigerator
CN102735018A (en) * 2012-06-26 2012-10-17 四川长虹电器股份有限公司 Method for controlling temperature of mechanical refrigerator in frequency conversion mode
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CN103245164A (en) * 2013-04-27 2013-08-14 合肥美菱股份有限公司 Temperature control method and device for refrigerating compartment

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