CN201047690Y

CN201047690Y - Cold-storage fridge

Info

Publication number: CN201047690Y
Application number: CNU2007200907141U
Authority: CN
Inventors: 肖建军; 王蕾蕾; 李伟; 任兆麟
Original assignee: Henan Xinfei Electric Group Co Ltd
Current assignee: Henan Xinfei Electric Group Co Ltd
Priority date: 2007-06-14
Filing date: 2007-06-14
Publication date: 2008-04-16
Anticipated expiration: 2017-06-14

Abstract

The utility model relates to a cold storage refrigerator, which comprises a safe and a refrigerating room, and a rear back board in the safe body or an evaporator of the refrigerating room is provided with at least one cold storage box with cold storage agent inside. Because at least one cold storage box with the cold storage agent inside is arranged on the rear back board in the safe body or the evaporator of the refrigerating room, the cold storage material used in the refrigerator is greatly increased to lead the refrigerator to accumulate huge amounts of cold energy in an electrical consuming declining period, thus satisfying a refrigerating requirement in an electrical consuming peak period and maintaining the required temperature in the safe and the refrigerating room. The refrigerator of the utility model stores the cold energy only in the electrical consuming declining period (23:00-7:00), the stored cold energy can satisfy the required cold energy in the electrical consuming peak period (7:00-23:00), thus, the refrigerator can save more energy and can be applied to refrigerators and other refrigeration systems, having reliable performance and electricity saving. The utility model has good social and economic values and is easy to be popularized and applied.

Description

A kind of cold-storing refrigerator

Technical field

The utility model relates to a kind of cold-storing refrigerator, relates in particular to a kind of the cold-storing refrigerator in the low power consumption electricity consumption, belongs to Refrigeration Technique.

Background technology

Along with popularizing of China's development of industry and agriculture and various household electrical appliance, the power tense problem becomes increasingly conspicuous.From the electric load aspect, show that according to authoritative data in the world Anywhere, electricity consumption every day all exists " peak ", " low ebb " section, the electricity consumption ratio between them was at 4: 1, and peak-valley difference is apart from increasing, and is very unfavorable for operation of power networks.How peak load shifting, how energy savings has become one of problem that government and common people are concerned about the most.For refrigerator design, production unit, design, produce power saving, in the many electricity consumptions of electric load low ebb and at the refrigerator of the few electricity consumption of peak value, the peak load shifting that not only helps electric load, and since during the electric power low ebb electricity charge lower, can also reduce expenses for the user.For this reason, people are by adopting the phase change cold-storage technology on refrigerator, promptly in very low low power consumption phase at the night refrigeration of electric load, agent for storage of coldness is undergone phase transition accumulate cold, on electric load higher daytime, just peak times of power consumption, make the cool storage medium ice-melt, the cold that stores is discharged, to satisfy the requirement of refrigerator refrigeration.To achieve these goals, the Chinese patent communique discloses a kind of patent No.: 200420095230.2, name is called: a kind of utility model patent of cold-storing refrigerator, it is the defective of 01255478.2 time-division operation rfrigerator that this refrigerator has overcome on June 26th, 2002 disclosed application number, by adopting battery, delay control circuit, even make refrigerator under power down mode, also can guarantee the temperature of chamber between refrigerator.Above-mentioned two kinds of refrigerators all exist following problem in use: though also be to freeze in the low power consumption phase (23:00-7:00), but the cold of being accumulated for peak of power consumption (7:00-11:00 and 17:00-21:00) 8 hours with, all the other times press normal mode and move.And existing cold accumulation refrigerator stores refrigerating chamber, the unnecessary cold air of refrigerating chamber exactly, and when to be shut down, solid-state agent for storage of coldness melts heat absorption, and the compressor long period is started once, has saved electric energy, has also changed the cooling condition of compressor simultaneously.

The utility model content

The purpose of this utility model is to provide a kind of cold-storing refrigerator, and to be implemented in low power consumption phase cold-storage, the cold of being accumulated can satisfy the refrigeration needs of peak times of power consumption fully.

To achieve these goals, the technical solution of the utility model is to have adopted a kind of cold-storing refrigerator, a kind of cold-storing refrigerator comprises refrigerating chamber and refrigerating chamber, in the refrigerating chamber casing on the postnotum or/and freezer evaporator is provided with the cold storage box that agent for storage of coldness is equipped with at least one inside.

The evaporimeter that is distributed on the cold storage box that is provided with on the freezer evaporator is at least two.

It is pancake flat-tube evaporator or tube-in-sheet evaporator that described freezer evaporator adopts cross section.

The flat part width of described flat-tube evaporator flat tube is greater than 3mm.

The bend of described flat-tube evaporator metal tube partly is that " U " shape connects.

Since in the refrigerating chamber casing on the postnotum or/and freezer evaporator is provided with the cold storage box that agent for storage of coldness is equipped with at least one inside, the cool storage material that uses in the refrigerator increases greatly, make refrigerator accumulate a large amount of colds in the low power consumption phase, thereby satisfy the refrigeration needs of peak times of power consumption, maintain refrigerating chamber, freezer temperature temperature required.Refrigerator of the present utility model is only at low power consumption phase (23:00-7:00) cold-storage, the cold of being accumulated can satisfy peak times of power consumption (7:00-23:00) institute chilling requirement, and refrigerator is more energy-conservation, can be applied in refrigerator and other refrigeration systems, dependable performance, saves energy.The utlity model has favorable social and economic worth, be easy to apply.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the flat-tube evaporator in the utility model;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the structural representation of flat-tube evaporator metal tube;

Fig. 5 is the B-B cutaway view of Fig. 4.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, cold-storing refrigerator of the present utility model, comprise refrigerating chamber 1 and refrigerating chamber 2, in refrigerating chamber 1 casing, be set with the cold storage box 3 that agent for storage of coldness is equipped with in five inside on the postnotum, on freezer evaporator, also be provided with the cold storage box 3 that agent for storage of coldness is equipped with in inside.The evaporimeter that adopts in the present embodiment refrigerating chamber 2 is that cross section is pancake flat-tube evaporator 4, on flat-tube evaporator 4, be fixed with cold storage box 5, cold storage box 5 is close to the coil pipe of flat-tube evaporator 4, has increased heat exchange area, and the bend of the metal tube of flat-tube evaporator 4 partly is that " U " shape connects.Cold storage box 5 can be fixed on flat-tube evaporator 4 above, also can fix in its lower section.

It is pancake tube-in-sheet evaporator that the evaporimeter of refrigerating chamber of the present utility model also can adopt cross section.

The operation principle of refrigerator of the present utility model is: if the cold accumulation refrigerator temperature of refrigerating chamber remains on 0.5～8 ℃, freezer temperature remains on-10～-23 ℃, when at low power consumption during the phase (23:00-7:00), the pressure cold accumulation refrigerator is started working, a part of refrigerating capacity of evaporimeter makes cool room cooling refrigeration, and another part is passed to the agent for storage of coldness in the cold storage box.Because this agent for storage of coldness is a phase-change material, when temperature reaches transformation temperature, undergoes phase transition and accumulates cold.The agent for storage of coldness temperature further reduced after phase transformation was finished, and this process of cool needs 8 hours.At peak times of power consumption (7:00-23:00), force cold accumulation refrigerator to quit work, refrigerating chamber, freezer temperature raise gradually, when temperature of refrigerating chamber was higher than 8 ℃, the refrigerating chamber cool storage material began to undergo phase transition, by solid-state liquefy, discharge a large amount of colds, delay temperature of refrigerating chamber and heat up; And when freezer temperature was higher than-12 ℃, agent for storage of coldness just began phase transformation, by the solid-state liquid state that becomes, discharged a large amount of colds, delayed temperature and heated up, and made refrigerator keep low-temperature condition simultaneously in chamber between two of peak times of power consumption, thereby reached the purpose of peak load shifting.After cold-producing medium all becomes liquid state, its temperature continues to raise, and temperature of refrigerating chamber is higher than 8 ℃, when freezer temperature is higher than-10 ℃, and the cold accumulation refrigerator kind of refrigeration cycle is started working again, so circulation is gone down, and this refrigerator has just reached low power consumption refrigeration, peak of power consumption and put cold energy-conserving action.

It should be noted last that: above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the utility model, and do not break away from any modification or partial replacement of spirit and scope of the present utility model, as change cold storage box in installation site that freezer evaporator is, and adopting dissimilar evaporimeter etc., it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. cold-storing refrigerator is characterized in that: comprise refrigerating chamber and refrigerating chamber, in the refrigerating chamber casing on the postnotum or/and freezer evaporator is provided with the cold storage box that agent for storage of coldness is equipped with at least one inside.

2. cold-storing refrigerator according to claim 1 is characterized in that: the evaporimeter that is distributed on the cold storage box that is provided with on the freezer evaporator is at least two.

3. cold-storing refrigerator according to claim 2 is characterized in that: it is pancake tube-in-sheet evaporator that described freezer evaporator adopts cross section.

4. cold-storing refrigerator according to claim 2 is characterized in that: it is pancake flat-tube evaporator that described freezer evaporator adopts cross section.

5. cold-storing refrigerator according to claim 4 is characterized in that: the flat part width of described flat-tube evaporator flat tube is greater than 3mm.

6. according to the described cold-storing refrigerator of claim 5, it is characterized in that: the bend of described flat-tube evaporator metal tube partly is that " U " shape connects.