CN2442203Y

CN2442203Y - Direct cooling refrigerator

Info

Publication number: CN2442203Y
Application number: CN 00239792
Authority: CN
Inventors: 李成武
Original assignee: Guangdong Kelong Electrical Appliances Co Ltd
Current assignee: Guangdong Kelong Electrical Appliances Co Ltd
Priority date: 2000-10-10
Filing date: 2000-10-10
Publication date: 2001-08-08
Anticipated expiration: 2010-10-10

Abstract

The utility model relates to a direct cooling refrigerator, which comprises a compressor, a liquid reservoir 5, and a condenser 9, and the liquid reservoir 5 and the condenser 9 are respectively connected to both ends of the compressor; the utility model also comprises an evaporator 3 of a refrigerating chamber and an evaporator 4 of a freezing chamber and an auxiliary capillary pipe 6 between the other end of the liquid reservoir 5 and an outlet of the evaporator 3 of a refrigerating chamber, and one end of the evaporator 3 of a refrigerating chamber and one end of the evaporator 4 of a freezing chamber are respectively connected to the condenser 9 via a dry filter 8; the evaporator 4 of a freezing chamber is directly connected to the other end of the liquid reservoir 5. Because the pressure balance of the two evaporators are achieved, different evaporation temperatures of the two evaporators can be formed, and the frosting degree and the frosting speed of the refrigerator can be controlled; the humidity of a refrigerating chamber is favorable to ensure, and the refrigerating efficiency is improved.

Description

Direct cold refrigerator

The utility model relates to the refrigerator technical field, specifically, relates to Direct cold refrigerator, a kind ofly can control the Direct cold refrigerator that frosting degree and speed effectively solve refrigerating chamber defrost frosting problem thereby relate in particular to.

The defrost of Direct cold refrigerator is a key point of improving refrigeration always; mainly be because if the wall of refrigerating chamber because of the blocked up refrigeration that influences of frost layer; temperature of refrigerating chamber rising, compressor are not shut down; cause refrigerating chamber and freezer temperature to go up, the refrigeration performance of refrigerator seriously descends.For solving the defrost problem, considered to do some improvement, by adopting various defrost measures, as adopting heating tube or prolonging the automatic or manual purpose that reaches defrost downtime.Even but adopted the defrost measure, as adopting timer, it also just decide according to a certain temperature environment, and also definite number of need of the time of defrost, can't be accurately the result of defrost be guaranteed.And frequent defrost, the temperature in the refrigerator is caused very big influence, simultaneously,, cause the interior relative humidity of case little because the defrost water in the refrigerating chamber has constantly flowed outside the case, can't carry out fresh-keeping to food.In addition, the defrost water of outflow also can be taken away the part cold, and is bigger to energy-conservation influential effect.

In the design of general refrigerator, all be use single evaporimeter, just refrigerator evaporator and freezer evaporator adopt same evaporimeter, and just what are different and in the different disengagement area of two Room distribution according to the refrigerating capacity of refrigerating chamber and refrigerating chamber.Because desired temperature of refrigeration and the desired temperature of refrigerating chamber are different, but for single capillary, their evaporating temperature is the same, like this, for guaranteeing the temperature requirement of refrigerating chamber, the temperature that must reduce evaporimeter makes the evaporating temperature of refrigerating chamber also lower, this just causes the temperature of refrigeration indoor evaporator very low, thereby the wall at refrigerating chamber caused low temperature, there is the great temperature difference with the room environmental temperature, cause in the as easy as rolling off a log frosting of the wall of refrigerator evaporator, influence refrigeration performance.

The purpose of this utility model is to provide a kind of Direct cold refrigerator, can control the degree and the speed of frosting, effectively solves the defrost frosting problem of refrigerating chamber, overcomes the blocked up shortcoming that influences refrigeration of wall frost layer because of refrigerating chamber.

The purpose of this utility model is to realize like this, design a kind of Direct cold refrigerator, comprise compressor and distinguish connected evaporimeter and device for drying and filtering through liquid reservoir and condenser by tube connector, described evaporimeter is connected with described device for drying and filtering by throttle capillary tube, described evaporimeter adopts the twin-stage evaporimeter, comprise refrigerator evaporator and freezer evaporator, its inlet is connected with the outlet of described device for drying and filtering by refrigeration throttle capillary tube and freezing throttle capillary tube respectively.

Direct cold refrigerator according to the utility model provides is characterized in that, the outlet of described refrigerator evaporator connects described liquid reservoir by the assisted capillary that makes the inlet and outlet pressure balance.

Implement the Direct cold refrigerator that the utility model provides, have the following advantages: owing to be provided with the twin-stage evaporimeter and be provided with the pressure balance capillary betwixt, balance pressure therebetween, form two kinds of different evaporating temperatures, the wall of refrigerator evaporator and the temperature difference of indoor environment have been reduced, thereby improved the degree and the speed of the temperature control frosting of evaporimeter wall, and fresh-keeping, energy-conservation, good reliability, be convenient to implement.

Below in conjunction with drawings and Examples, further specify characteristics of the present utility model.In the accompanying drawing:

Fig. 1 is the structural representation of the utility model Direct cold refrigerator embodiment.

As shown in Figure 1, the Direct cold refrigerator that the utility model provides, comprise compressor 7 and distinguish connected evaporimeter and devices for drying and filtering 8 through liquid reservoir 5 and condenser 9 by tube connector, evaporimeter is connected with device for drying and filtering 8 by throttle capillary tube, evaporimeter adopts the twin-stage evaporimeter, comprise refrigerator evaporator 3 and freezer evaporator 4, arrange near the refrigerating chamber and the refrigerating chamber of refrigerator respectively, the inlet of refrigerator evaporator 3 and freezer evaporator 4 is connected with the outlet of device for drying and filtering 8 by refrigeration throttle capillary tube 1 and freezing throttle capillary tube 2 respectively, in this refrigeration system, through behind the device for drying and filtering 8, by two capillaries is that to enter two evaporimeters be refrigerating evaporator 4 and refrigeration evaporator 3 for freezing capillary 2 and refrigeration capillary 1, wherein the exit of refrigeration evaporator 3 is provided with a pressure balance assisted capillary 6, connect liquid reservoir 5 by assisted capillary 6, guarantee the balance of import and export pressure, thereby raise the pressure of refrigerator evaporator, improve the temperature of refrigerator evaporator, the outlet of freezer evaporator 4 directly connects liquid reservoir 5 by tubule, import jointly then in the liquid reservoir 5, suck by compressor 7 and discharge.In order to allow two kinds of evaporimeters be in different evaporating temperatures the refrigerator evaporator temperature is raised, as at-10 degrees centigrade, like this than being enhanced at-30 degrees centigrade originally, reduce the wall of refrigerator evaporator and the temperature difference of indoor environment, thereby the temperature that improves original evaporimeter wall can be controlled the degree and the speed of frosting.The evaporating temperature of refrigerating evaporator 4 and refrigeration evaporator 3 is different, and they keep certain temperature difference with indoor separately environment temperature respectively.

Even also can be very fast melt during each shutdown in the frosting of refrigerating chamber wall in practice, therefore can be described as a kind of frostless refrigerator at refrigerator.

Claims

1, a kind of Direct cold refrigerator, comprise compressor (7) and distinguish connected evaporimeter and device for drying and filtering (8) through liquid reservoir (5) and condenser (9) by tube connector, described evaporimeter is connected with described device for drying and filtering (8) by throttle capillary tube, it is characterized in that, described evaporimeter comprises refrigerator evaporator (3) and freezer evaporator (4), and its inlet is connected with the outlet of described device for drying and filtering (8) by refrigeration throttle capillary tube (1) and freezing throttle capillary tube (2) respectively.

According to the described Direct cold refrigerator of claim 1, it is characterized in that 2, the outlet of described refrigerator evaporator (3) is connected to described liquid reservoir (5) by the assisted capillary (6) that makes the inlet and outlet pressure balance, to form the different evaporating temperatures of two evaporimeters.