CN108775748A - A kind of refrigerator and its refrigeration module - Google Patents

Abstract

The invention discloses a refrigerator and its refrigeration module, and relates to the technical field of refrigeration equipment. A refrigeration module with double evaporators is adopted, and two evaporators are connected in series-parallel through return pipes. The first chamber of the evaporator is The inlet of the chamber evaporator and the outlet of the first chamber evaporator are respectively located at the upper and lower parts of the first chamber, and the inlet of the second chamber evaporator and the outlet of the second chamber evaporator of the second chamber evaporator are located at the second chamber respectively. In the lower and upper parts of the two chambers, the height of the evaporator inlet in the first chamber is higher than that of the evaporator inlet in the second chamber. The two refrigerating compartments of the present invention can realize the combination of various temperature zones such as refrigerating and freezing, freezing and freezing, refrigerating and refrigerating, soft freezing and freezing, compartment closing, etc., and are flexible and convenient to use; the drop formed by the natural heights of the two evaporators is used to strengthen the Refrigerant migration and system cycle efficiency reduce the use of liquid receivers and refrigerants, reduce the load on the refrigeration system, improve temperature control accuracy and reduce costs.

Description

A kind of refrigerator and its refrigeration module

technical field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator and a refrigeration module used in the refrigerator.

Background technique

A freezer is a refrigeration device that maintains a constant low temperature. It is a common electrical appliance used for low-temperature preservation of food or other items in daily life. It is widely used in the fields of life and industry. Traditional freezers are generally used as supplementary products to refrigerators, mainly refrigerated freezers and conversion refrigerated freezers. Refrigerators and freezers generally adopt a single refrigeration system. The refrigerator uses a small part of the evaporator at the end of the freezer to cool down, and a compensation heater is installed to prevent the temperature from being too low. Zero" phenomenon, resulting in food freezing damage. At the same time, the two temperature zones of this kind of refrigerator are fixed and cannot be converted, and the use flexibility is relatively poor. However, the entire freezer of the conversion type refrigerated freezer is a single temperature zone, although the storage space is large, the flexibility of use is relatively poor.

Through patent search, there are the following known technical solutions:

Patent 1:

Application number: CN201120421532.4, application date: 2011.10.29, authorization announcement date: 2012.07.04, the present invention provides a temperature-variable refrigerator, which belongs to the technical field of refrigerators. It solves the problem that the freezer in the prior art cannot satisfy people's need to adjust the storage space for freezing and refrigeration according to actual conditions, and has a complex structure. The temperature-variable refrigerator includes a cabinet body, a liquid storage cylinder arranged in the cabinet body and sequentially connected to form a cooling circuit, a compressor, a condenser, a freezer evaporator and a conversion room evaporator, and it is characterized in that the cabinet body is divided into several A freezing room and a freezing/refrigerating conversion room, the evaporator of the freezing room is set in the freezing room, the evaporator of the switching room is set in the freezing/refrigerating room, a freezing evaporation tube is arranged in the switching room evaporator, and one end of the freezing evaporating tube is connected to the refrigerating room for evaporation The output interface of the condenser, and the other end is connected with the condenser through a switch mechanism that can control the conduction and closure of the refrigeration evaporation tube. The temperature-variable refrigerator can adjust the storage space for freezing and refrigeration according to actual conditions, and has a simple structure and a reasonable design.

However, only one chamber in this patent can realize variable temperature, and the flexibility of use is still relatively poor.

Patent 2:

Application number: 200410010337.7, application date: 2004.06.11, authorized announcement date: 2005.12.14, the present invention relates to a refrigerator that can freely adjust the volume of the refrigerator and freezer, the refrigerator is equipped with two sets of independent refrigeration control and circulation loops The evaporators of the two circulation loops are respectively arranged at both ends of the freezer, and the freezer between the two evaporators is provided with a partition that divides the inner space of the freezer into left and right refrigeration/freezer compartments, and the left and right positions of the partition are adjustable. The refrigerator/freezer partition can move freely left and right. Through the left and right movement of the partition, the volume change of the refrigerator and freezer is realized; the refrigeration system is realized by dual temperature control, that is, the refrigerator/freezer has a separate temperature sensor, and the temperature of the refrigerator/freezer is detected by the temperature sensor. According to the settings, the temperature of the two refrigerating/freezing chambers can be controlled within the range of refrigerating and freezing temperatures, so the refrigerating/freezing chamber of the present invention can not only change the volume of the refrigerating/freezing chamber, but also change the entire refrigerator into refrigerated Cabinet or freezer, so that the freezer can meet the needs of different users and different items.

However, the freezer or refrigerated compartment composed of movable partitions in this patent does not have independent sealing. When the user adjusts the volume, if it is not carried out at a specific ambient temperature, it is very easy to cause the temperature of the refrigerated compartment and the refrigerated compartment to be too late to reach The corresponding set temperature will cause the temperature of the freezer to not reach the set temperature or the freezer to be too cold. In addition, this patent also needs to design a complex dual-loop control structure accordingly, with a large amount of refrigerant injection and a large system load.

Through the above search, it is found that the above technical solutions do not affect the novelty of the present invention; and the mutual combination of the above patent documents does not destroy the inventiveness of the present invention.

Contents of the invention

The present invention provides a refrigerator and a refrigeration module thereof in order to avoid the disadvantages of the above-mentioned prior art.

In order to solve the technical problem, the present invention adopts the following technical scheme: a refrigerator and its refrigeration module, the foam layer is arranged inside the box shell, and the first indoor tank and the second indoor tank are respectively independently arranged in the foam layer, A box is formed, the compressor unit, the anti-condensation pipe, the condenser, and the filter are connected in series in sequence, the inlet of the switching valve is connected with the outlet of the filter, and the first outlet of the switching valve and the second outlet of the switching valve of the switching valve are respectively connected to the second outlet of the switching valve. The inlet of the capillary in one chamber is connected with the capillary in the second chamber, the inlet of the evaporator in the first chamber is connected with the outlet of the capillary in the first chamber, and the two inlets of the tee are connected with the evaporator in the first chamber respectively. The outlet of the capillary tube in the second chamber is connected to the outlet of the capillary tube in the second chamber, and the outlet is connected to the inlet of the evaporator in the second chamber. The outlet of the evaporator in the second chamber is connected to the return pipe and returns to the inlet of the compressor unit to form a refrigeration module;

The first compartment evaporator inlet and the first compartment evaporator outlet of the first compartment evaporator are located at the upper and lower parts of the first compartment evaporator respectively, and the second compartment evaporator's second The inlet of the evaporator in the compartment and the outlet of the evaporator in the second compartment are respectively located at the lower part and the upper part of the inner liner of the second compartment, and the inlet of the evaporator in the first compartment is higher than the inlet of the evaporator in the second compartment the height of.

Further, the temperature sensor of the first compartment and the temperature sensor of the second compartment are arranged close to the side walls of the first compartment and the second compartment respectively, and are respectively used for detection and feedback of the temperature of the first compartment. and the temperature information of the second compartment; a control unit is set outside the box, and the control unit is used to adjust the opening and closing of the corresponding passage of the switching valve to adjust the temperature of the first compartment and the second compartment. temperature.

Further, the mouth of the box is located at the top of the box, and the mouth is located at the mouth of the box, and the mouth of the box corresponds to the inner liner of the first compartment and the second compartment The structure and position of the inner tank are respectively provided with independent top-opening doors.

The invention provides a refrigerator and a refrigeration module thereof, which have the following beneficial effects:

1. The dual evaporator refrigeration module is adopted, and the two evaporators form a series-parallel structure through the air return pipe, so that the two refrigeration compartments can realize refrigeration and freezing, freezing and freezing, refrigeration and refrigeration, soft freezing and freezing, compartment closing, etc. Combination of different temperature zones, flexible and convenient to use;

2. The inlet and outlet of the first evaporator are respectively arranged at the upper and lower parts of the first room, and the inlet and outlet of the second room evaporator are respectively located at the upper and lower parts of the second room, using the natural height of the evaporator to form The head of the cooling system improves the migration of refrigerant and the circulation efficiency of the system, reduces the use of liquid receiver and refrigerant, reduces the load of the refrigeration system, improves the temperature control accuracy and reduces the cost;

3. Through the combined control of the switching valve and the temperature sensor, precise temperature control and temperature adjustment are realized, which avoids food freezing damage caused by zero crossing in the refrigerated temperature zone, and at the same time can realize the shutdown of individual room refrigeration, which is more environmentally friendly and energy-saving.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the refrigeration module of the present invention.

In the picture:

1. Box body, 11. Box shell, 12. Foam layer, 13. Lining mouth; 21. The first indoor tank, 211. The first room temperature sensor, 22. The second indoor tank, 221. Second room temperature sensor; 3. Refrigeration module, 301, compressor unit, 302, anti-condensation pipe, 303, condenser, 304, filter, 305, switching valve, 3051, first outlet of switching valve, 3052, switching valve Second outlet, 306, first compartment capillary, 307, first compartment evaporator, 3071, first compartment evaporator inlet, 3072, first compartment evaporator outlet, 308, second compartment capillary, 309 , The evaporator of the second room, 3091, the inlet of the evaporator of the second room, 3092, the outlet of the evaporator of the second room, 310, the tee, 311, the air return pipe; 4, the control unit; S, the flow direction of the refrigerant.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1-2, where S is the flow direction of the refrigerant, the structural relationship is as follows: the foam layer 12 is arranged inside the tank shell 11, and the first inner chamber 21 and the second inner chamber 22 are separately arranged. In the foam layer 12, a box body 1 is formed, a compressor unit 301, an anti-condensation pipe 302, a condenser 303, and a filter 304 are connected in series in sequence, the inlet of the switching valve 305 is connected with the outlet of the filter 304, and the switching valve of the switching valve 305 is the first An outlet 3051 and a second outlet 3052 of the switching valve are respectively connected with the inlets of the first compartment capillary 306 and the second compartment capillary 308, and the inlet of the first compartment evaporator 307 is communicated with the outlet of the first compartment capillary 306, The two inlets of the tee 310 are respectively connected with the outlet of the first chamber evaporator 307 and the outlet of the second chamber capillary 308, and its outlet is connected with the inlet of the second chamber evaporator 309, and the second chamber evaporator 309 The outlet is connected to the air return pipe 311 and returned to the inlet of the compressor unit 301 to form the refrigeration module 3;

The first compartment evaporator inlet 3071 and the first compartment evaporator outlet 3072 of the first compartment evaporator 307 are respectively located at the upper and lower parts of the first compartment interior bladder 21, and the second compartment evaporator 309 of the second compartment The inlet 3091 of the chamber evaporator and the outlet 3092 of the second chamber evaporator are respectively located at the bottom and upper part of the second chamber 22, and the height of the inlet 3071 of the first chamber evaporator is higher than the height of the inlet 3091 of the second chamber evaporator .

Preferably, the first compartment temperature sensor 211 and the second compartment temperature sensor 221 are arranged close to the side walls of the first compartment 21 and the second compartment 22 respectively, and are respectively used for detection and feedback of the first compartment and the temperature information of the second compartment; a control unit 4 is arranged outside the box body 1, and the control unit 4 is used to adjust the opening and closing of the corresponding passage of the switching valve 305 to adjust the temperature of the first compartment and the second compartment.

Preferably, the mouth of the box body 1 is located at the top thereof, and the lining port 13 is located at the mouth of the box body 1, and the mouth of the box body 1 corresponds to the structure of the first compartment interior bladder 21 and the second compartment interior bladder 22 and the position are respectively set independent top-opening door.

During specific use, the setting temperature of the second chamber is less than or equal to the setting temperature of the first chamber, the temperature setting range of the two chambers is -32°C to 10°C, and the first chamber can be closed.

During operation, the first compartment temperature sensor 211 and the second compartment temperature sensor 221 respectively detect the temperatures of the first compartment and the second compartment in real time.

When the first room requests cooling or the first room and the second room request cooling at the same time, the control unit 4 controls the first outlet 3051 of the switching valve 305 to be connected, and the second outlet 3052 of the switching valve is blocked. The compartment evaporator 307 and the second compartment evaporator 309 work simultaneously to realize the cooling of the first compartment and the second compartment.

When only the second room requires cooling, the control unit 4 controls the first outlet 3051 of the switching valve 305 to be cut off, and the second outlet 3052 of the switching valve is connected. At this time, the evaporator 307 of the first room does not work, and the second room The chamber evaporator 309 works to realize the independent cooling of the second chamber.

When the temperatures of the first compartment and the second compartment are both lower than the set shutdown temperature, the control unit 4 controls the compressor 301 to stop working.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments Modifications are made to the recorded technical solutions, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (3)

1. A refrigerator and its refrigeration module, the foam layer (12) is arranged inside the box shell (11), and the first chamber (21) and the second chamber (22) are respectively independently arranged on the foam In the layer (12), the casing (1) is formed, which is characterized in that: the compressor unit (301), the anti-condensation pipe (302), the condenser (303), and the filter (304) are connected in series in sequence, and the switching valve (305) The inlet communicates with the outlet of the filter (304), and the switching valve first outlet (3051) and the switching valve second outlet (3052) of the switching valve (305) are respectively connected to the first chamber capillary (306) and the second The inlet of the compartment capillary (308) is connected, the inlet of the first compartment evaporator (307) is communicated with the outlet of the first compartment capillary (306), and the two inlets of the tee (310) are respectively connected to the outlet of the first compartment capillary (306). The outlet of the first compartment evaporator (307) is connected with the outlet of the second compartment capillary (308), and its outlet is connected with the inlet of the second compartment evaporator (309), and the second compartment evaporator (309) the outlet is connected to the air return pipe (311) to return to the inlet of the compressor unit (301), forming a refrigeration module (3); The first compartment evaporator inlet (3071) and the first compartment evaporator outlet (3072) of the first compartment evaporator (307) are respectively located at the upper and lower parts of the first compartment interior bladder (21) , the second compartment evaporator inlet (3091) and the second compartment evaporator outlet (3092) of the second compartment evaporator (309) are respectively located at the bottom and the bottom of the second compartment interior bladder (22) In the upper part, the height of the evaporator inlet (3071) of the first compartment is higher than that of the evaporator inlet (3091) of the second compartment. 2. A refrigerator and its refrigeration module according to claim 1 or 2, characterized in that: the first compartment temperature sensor (211) and the second compartment temperature sensor (221) are respectively close to the first compartment The inner liner (21) and the second inner liner (22) are arranged on the side walls, respectively for detecting and feeding back the temperature information of the first room and the second room; the outside of the box (1) is set A control unit (4), the control unit (4) is used to adjust the opening and closing of the corresponding passage of the switching valve (305) to adjust the temperature of the first compartment and the second compartment. 3. A refrigerator and its refrigeration module according to claim 1 or 2, characterized in that: the mouth of the box (1) is located at the top of the box, and the lining (13) is provided on the box (1) ) mouth position, the mouth of the box body (1) corresponds to the structure and position of the first chamber interior bladder (21) and the second chamber interior chamber (22) respectively provided with independent top-opening doors .