CN111750594A

CN111750594A - Refrigerator with a door

Info

Publication number: CN111750594A
Application number: CN202010542751.1A
Authority: CN
Inventors: 杨春华; 黎志东
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2020-10-09

Abstract

The invention relates to a refrigerator, which comprises a refrigerator body, an ice maker and a refrigeration circulating system, wherein the refrigeration circulating system comprises a control valve, a freezing throttler, an ice making throttler, a refrigeration pipe and a freezing evaporator, and the control valve is provided with a valve inlet, a first valve outlet and a second valve outlet; the inlet of the freezing throttler is communicated with the outlet of the first valve; the inlet of the ice-making restrictor is communicated with the outlet of the second valve; the inlet of the refrigerating pipe is communicated with the outlet of the ice-making restrictor; the inlet of the freezing evaporator is respectively communicated with the freezing throttler and the outlet of the refrigerating pipe. The ice making system is formed by matching the ice making throttler with the refrigerating pipe, and the ice making throttler is used for independently refrigerating the ice maker; a freezing throttle and a freezing evaporator are utilized to form a freezing and refrigerating system which independently refrigerates a freezing chamber; the ice making system and the freezing refrigeration system form a refrigeration cycle system, and the refrigeration cycle system is matched with the control valve for selective control, so that the requirement of independent refrigeration of a freezing chamber or simultaneous refrigeration of the freezing chamber and the ice making machine can be met, and the ice making efficiency is considered.

Description

Refrigerator with a door

Technical Field

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

Background

A refrigerator is one of the most commonly used household appliances for storing food materials. In recent years, with the increasing living standard of people, the performance requirements of refrigerators are higher and higher. In order to perform the ice making function, an ice making chamber is generally required.

In the related art, when a refrigerator has a plurality of refrigerating compartments, such as a refrigerating compartment, a freezing compartment, a temperature changing compartment, and an ice making compartment; how to configure the positions and the connection sequence of all the parts in a refrigeration circulating system can meet the refrigeration requirements of a plurality of refrigeration compartments at the same time, and can also give consideration to the ice making efficiency, which is a problem to be solved by a designer of a refrigerator.

Disclosure of Invention

The invention aims to provide a refrigerator, which aims to improve the layout of a refrigeration cycle system in the existing refrigerator, meet the refrigeration requirements of multiple refrigeration compartments and give consideration to ice making efficiency.

In order to solve the technical problems, the invention adopts the following technical scheme:

according to one aspect of the present invention, there is provided a refrigerator including; a box body, wherein a freezing chamber and an ice making chamber which are separated from each other are arranged in the box body; an ice maker disposed corresponding to the ice making chamber; and a refrigeration cycle system including: a control valve having a valve inlet for inflow of refrigerant and first and second valve outlets which are individually on-off controllable, respectively; the first valve outlet and the second valve outlet are respectively communicated with the valve inlet; a freezing restrictor having an inlet in communication with the first valve outlet; an ice making restrictor having an inlet in communication with the second valve outlet; the inlet of the refrigerating pipe is communicated with the outlet of the ice-making restrictor; the refrigeration pipe is arranged corresponding to the ice maker and used for providing refrigeration capacity for the ice maker; a freezing evaporator provided corresponding to the freezing chamber; and the inlet of the freezing evaporator is respectively communicated with the freezing throttler and the outlet of the refrigerating pipe.

In some embodiments of the present application, the ice maker includes a housing and an ice cube tray, the ice cube tray being reversibly disposed within the housing; the shell is arranged in the ice making chamber; the refrigerating pipe extends into the shell to exchange heat with the ice cube tray.

In some embodiments of the present application, the ice maker further includes an ice making fan, the ice making fan is disposed in the housing, and is used for sending cold air in the housing after being cooled by the cooling pipe into the ice making chamber.

In some embodiments of the present application, a temperature-variable chamber is further disposed in the box body, and the temperature-variable chamber is separated from the freezing chamber and the ice-making chamber; the refrigeration cycle system also comprises a variable temperature restrictor and a variable temperature evaporator; the control valve also has a third valve outlet which can be controlled by an independent switch, and the third valve outlet is communicated with the valve inlet; the inlet of the variable-temperature restrictor is communicated with the outlet of the third valve; the variable temperature evaporator is arranged corresponding to the variable temperature chamber, an inlet of the variable temperature evaporator is communicated with an outlet of the variable temperature restrictor, and an outlet of the variable temperature evaporator is communicated with an inlet of the refrigerating pipe.

In some embodiments of the present application, the refrigeration cycle system further includes a temperature-changing fan, and the temperature-changing fan is disposed in the box body and corresponds to the temperature-changing chamber; the temperature-changing fan is used for sending the cold air cooled by the temperature-changing evaporator into the temperature-changing chamber.

In some embodiments of the present application, a ventilation air duct communicated with the freezing chamber is provided in the box body, and a freezing fan is provided in the ventilation air duct; the freezing fan is used for sending cold air cooled by the freezing evaporator into the freezing chamber through the ventilation air duct.

In some embodiments of the present application, a refrigerating chamber is further disposed in the box body, and the refrigerating chamber is separated from the freezing chamber and the ice making chamber; the ventilation air duct is provided with an air supply branch communicated with the refrigerating chamber; and an air door for independently opening and closing the air supply branch is arranged in the air supply branch.

In some embodiments of the present application, the ice making chamber is disposed in the refrigerating chamber.

In some embodiments of the present application, the control valve is an electrically operated valve.

According to the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:

in the refrigerator provided by the embodiment of the invention, the ice making throttler, the refrigeration pipe and the ice making machine are matched to form an ice making system, so that the ice making machine is independently refrigerated; meanwhile, a freezing and refrigerating system is formed by using a freezing throttler and a freezing evaporator, and the freezing throttler and the freezing evaporator are used for independently refrigerating a freezing chamber; and the ice making system and the freezing refrigeration system form a series-parallel refrigeration cycle system, and are matched with valve outlets of the control valve to carry out selective control, so that the requirement of independent refrigeration of a freezing chamber or simultaneous refrigeration of the freezing chamber and the ice making machine can be met, and the ice making efficiency is considered at the same time.

Drawings

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a refrigeration pipe and an ice maker according to an embodiment of the present invention.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a schematic view of a refrigeration cycle system according to an embodiment of the present invention.

Fig. 5 is a schematic flow chart of a first mode of use of the refrigeration cycle system of fig. 4.

Fig. 6 is a schematic flow chart of a second mode of use of the refrigeration cycle system of fig. 4.

Fig. 7 is a schematic flow chart of a third mode of use of the refrigeration cycle system of fig. 4.

Fig. 8 is a schematic flow chart of a fourth mode of use of the refrigeration cycle system of fig. 4.

Fig. 9 is a schematic flow chart of a fifth mode of use of the refrigeration cycle system of fig. 4.

Fig. 10 is a schematic flow chart of a sixth mode of use of the refrigeration cycle system of fig. 4.

Fig. 11 is a schematic flow chart of a seventh mode of use of the refrigeration cycle system of fig. 4.

The reference numerals are explained below:

1. a box body;

11. a freezing chamber; 12. a refrigerating chamber; 13. a temperature-variable chamber; 14. an ice making chamber; 15. an ice maker; 151. a housing; 152. an ice making fan; 153. an ice making grid; 154. an ice turning rod; 155. a heater;

2. a refrigeration cycle system;

21. a compressor; 22. a condenser; 23. a control valve; 231. a valve inlet; 232. a first valve outlet; 233. a second valve outlet; 234. a third valve outlet; 24. a freezing restrictor; 25. a refrigeration evaporator; 251. a freezing fan; 26. an ice making restrictor; 27. a refrigeration pipe; 28. a variable temperature restrictor; 29. a temperature-changing evaporator; 291. a temperature-changing fan.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

A refrigerator is one of the most common household appliances for storing food materials. In recent years, with the increasing living standard of people, the performance requirements of refrigerators are higher and higher. In order to perform the ice making function, an ice making chamber is generally required.

Referring to fig. 1, the refrigerator provided in this embodiment includes a box body 1 and a refrigeration cycle system 2, and a freezing chamber 11, a refrigerating chamber 12, a temperature changing chamber 13, and an ice making chamber 14 are disposed in the box body 1 to meet four refrigeration requirements of freezing, refrigerating, temperature changing, and ice making.

Wherein, the freezing chamber 11 is provided with a compartment arranged at the lower left side inside the cabinet 1. The temperature change chamber 13 is provided with a chamber arranged below the right side inside the case 1. The refrigerating chamber 12 is provided with two chambers, is arranged at the upper side of the inner part of the box body 1, and is distributed at the left and the right. The number and distribution positions of the freezing chamber 11, the refrigerating chamber 12, and the temperature-changing chamber 13 may be changed as needed, and are not limited herein.

The ice making chamber 14 is arranged in the refrigerating chamber 12 and is isolated from the refrigerating chamber 12; an ice maker 15 is arranged in the ice making chamber 14, ice is made through the ice maker 15, and made ice blocks are stored in the ice making chamber 14 and are taken by a user; the user can open the refrigerating chamber 12 door and the ice making chamber 14 door in sequence to take the ice cubes.

Fig. 2 is a schematic structural diagram of the cooling pipe 27 and the ice maker 15 according to the embodiment of the present invention. Fig. 3 is an exploded view of fig. 2.

Referring to fig. 2 and 3, the ice maker 15 includes a housing 151, an ice making tray 153, an ice-turning lever 154, and a heater 155 and an ice-making fan 152.

Wherein, the housing 151 is installed in the ice making chamber 14; the ice cube tray 153 is arranged in the shell 151 and fixedly arranged on the ice turning rod 154, and a plurality of groups of ice cube trays 153 are circumferentially distributed on the ice turning rod 154; the ice turning rod 154 is rotatably connected in the housing 151; the heater 155 is installed on the ice cube tray 153 and is used for heating the ice cube tray 153 to separate ice cubes on the ice cube tray 153 from the ice cube tray 153; the ice making fan 152 is used for sending cold air in the housing 151 into the ice making chamber 14 to maintain and adjust the temperature in the ice making chamber 14 to maintain ice storage and ice making states in the ice making chamber 14; the cooling of the ice making chamber 14 is achieved by the air cooling structure of the ice making fan 152.

The ice making principle of the ice cube tray 153 in the ice maker 15 is substantially as follows: water is firstly filled into the ice making cells 153, and when the water in the ice making cells 153 is cooled into ice, the water is heated by the heater 155 to separate the ice blocks from the ice making cells 153; then the ice turning rod 154 turns to drop the ice blocks from the ice making cells 153 and fall into the ice making chamber 14 for storage; the water storage device is used to refill the ice cube tray 153 and the ice is made repeatedly.

Fig. 4 is a schematic view of the refrigeration cycle system 2 according to the embodiment of the present invention.

Referring to fig. 4, the refrigeration cycle system 2 according to the present embodiment includes a compressor 21, a condenser 22, a control valve 23, a freezing restrictor 24, a freezing evaporator 25, an ice-making restrictor 26, a refrigerating pipe 27, a variable temperature restrictor 28, and a variable temperature evaporator 29.

The compressor 21 is installed in the case 1, and compresses refrigerant vapor to generate high-temperature and high-pressure refrigerant vapor.

The condenser 22 is installed in the tank 1, and is configured to condense refrigerant vapor into a liquid refrigerant of medium temperature and high pressure.

The control valve 23 has a valve inlet 231 and a first valve outlet 232, a second valve outlet 233 and a third valve outlet 234 which can be individually on-off controlled; the first valve outlet 232, the second valve outlet 233 and the third valve outlet 234 are respectively communicated with the valve inlet 231, and any one of the valve outlets of the control valve 23 can be selected to be communicated with the valve inlet 231. In some embodiments, the control valve 23 may be a one-in-one-out electric valve.

The freezing throttler 24, the ice-making throttler 26 and the variable temperature throttler 28 are throttlers, and are used for throttling and depressurizing the medium-temperature and high-pressure liquid refrigerant and converting the medium-temperature and high-pressure liquid refrigerant into low-temperature and low-pressure refrigerant steam. In some embodiments, the restrictor may employ a capillary restrictor.

The freezing evaporator 25, the refrigerating pipe 27 and the temperature-changing evaporator 29 are all used for evaporating and boiling refrigerant vapor therein, absorbing heat of surrounding media and refrigerating.

The freezing evaporator 25 is disposed corresponding to the freezing chamber 11 and the refrigerating chamber 12, and provides cooling energy for the freezing chamber 11 and the refrigerating chamber 12 separately to perform cooling.

The refrigerating pipe 27 is arranged corresponding to the ice making chamber 14, and the refrigerating pipe 27 extends into the ice maker 15 and is in direct contact with the ice making grid 153 to independently provide cold energy for the ice maker 15 and the ice making chamber 14 to refrigerate.

The refrigeration pipe 27 and the ice maker 15 can form a direct cooling contact type ice making system; compared with the traditional air-cooling ice making structure and the ice making mode, the direct-cooling ice making system has the advantages of short ice making time, high ice making speed and large ice making amount in unit time; the ice making chamber 14 can be filled in a short time, i.e., having a characteristic of high ice making efficiency.

The variable temperature evaporator 29 is provided corresponding to the temperature-varying chamber 13, and separately provides cooling capacity for the temperature-varying chamber 13 to perform refrigeration.

Still referring to fig. 4, in the refrigeration cycle system 2, the outlet of the freezing evaporator 25 communicates with the inlet of the compressor 21, and the outlet of the compressor 21 communicates with the inlet of the condenser 22; the outlet of the condenser 22 communicates with the valve inlet 231 of the control valve 23; the freezing evaporator 25 → the compressor 21 → the condenser 22 → the control valve 23 constitute a common series path.

The first valve outlet 232 communicates with the inlet of the freezing throttle 24, and the outlet of the freezing throttle 24 communicates with the inlet of the freezing evaporator 25, thereby forming, in combination with the common series path, the first refrigeration cycle of the compressor 21 → the condenser 22 → the control valve 23 → the freezing throttle 24 → the freezing evaporator 25 → the compressor 21.

In the circuit of the first refrigeration cycle, the freezing throttle 24 and the freezing evaporator 25 form a series configuration, and the series circuit is the shortest. In the loop, the refrigerant is throttled and depressurized by the freezing throttler 24, and then only enters the freezing evaporator 25 for evaporation and heat absorption, so that the refrigerant can independently provide cold for the freezing chamber 11. When the compressor 21 is started, the refrigerant is compressed by the compressor 21, cooled by the condenser 22, selectively opened by the control valve 23, enters the freezing throttler 24 through the first valve outlet 232, throttled and depressurized, and then enters the freezing evaporator 25 to absorb heat, so as to provide cold energy for the freezing chamber 11 for refrigeration.

The second valve outlet 233 communicates with the inlet of the ice-making restrictor 26, the outlet of the ice-making restrictor 26 communicates with the inlet of the refrigeration pipe 27, and the outlet of the refrigeration pipe 27 communicates with the inlet of the freezing evaporator 25, thereby forming, in combination with the common series path, the second refrigeration cycle of the compressor 21 → the condenser 22 → the control valve 23 → the ice-making restrictor 26 → the refrigeration pipe 27 → the freezing evaporator 25 → the compressor 21. Wherein the serial branch of the ice making restrictor 26 and the refrigerating pipe 27 is in parallel relation with the freezing restrictor 24.

In the circuit of the second refrigeration cycle, the ice-making restrictor 26, the refrigeration pipe 27, and the freezing evaporator 25 form a series structure. In the circuit, after being throttled and depressurized by the ice making throttle 26, the refrigerant sequentially enters the refrigeration pipe 27 and the freezing evaporator 25 to evaporate and absorb heat respectively, so that cold energy can be provided for the ice making chamber 14 and the freezing chamber 11 respectively.

The third valve outlet 234 communicates with the inlet of the variable temperature restrictor 28, the outlet of the variable temperature restrictor 28 communicates with the inlet of the variable temperature evaporator 29, and the outlet of the variable temperature evaporator 29 communicates with the inlet of the refrigerant pipe 27, thereby forming a third refrigeration cycle of the compressor 21 → the condenser 22 → the electric valve → the variable temperature restrictor 28 → the variable temperature evaporator 29 → the refrigerant pipe 27 → the freezing evaporator 25 → the compressor 21 in combination with the common series path. Wherein, the serial branch composed of the variable temperature restrictor 28 and the variable temperature evaporator 29 is in parallel relation with the ice-making restrictor 26.

In the circuit of the third refrigeration cycle, the variable temperature choke 28, the variable temperature evaporator 29, the refrigeration tube 27, and the freezing evaporator 25 form a series structure, and the series circuit is longest. In the circuit, the refrigerant is throttled and depressurized by the variable temperature restrictor 28, and then sequentially enters the variable temperature evaporator 29, the refrigerating pipe 27 and the freezing evaporator 25 to be evaporated and absorb heat. The variable temperature chamber 13, the ice making chamber 14, and the freezing chamber 11 may be supplied with cooling energy, respectively.

Therefore, in the refrigeration cycle system 2 provided in this embodiment, there are three refrigeration cycle loops, and the control valve 23 can be selectively controlled according to the refrigeration demand and the refrigeration priority of each refrigeration compartment, and the corresponding loop is selected to operate, so as to meet the refrigeration demands of different refrigeration compartments.

Still referring to fig. 4, in the refrigeration cycle system 2, the freezing chamber 11 and the temperature-varying chamber 13 are both air-cooled.

The air cooling structure of the freezing chamber 11 is provided with a freezing fan 251 between the freezing evaporator 25 and the freezing chamber 11. For example, a ventilation duct (not shown) communicating with the freezing chamber 11 is provided on the back side of the freezing chamber 11, and the freezing fan 251 is installed in the ventilation duct to supply wind power to send cold air having absorbed heat and cooled by the freezing evaporator 25 into the freezing chamber 11 through the ventilation duct to perform freezing and cooling.

In some embodiments, the top of the ventilation duct is opened with an air supply branch (not shown) that is communicated with the refrigerating chamber 12, so that cold air in the ventilation duct can enter the refrigerating chamber 12 through the air supply branch to provide cold energy for the refrigerating chamber 12 to refrigerate. In addition, it is possible to simultaneously supply cold air into the freezing chamber 11 and the refrigerating chamber 12 by the power of the freezing fan 251, achieving the refrigerating demand of the freezing evaporator 25 for simultaneously supplying the freezing chamber 11 and the refrigerating chamber 12.

Furthermore, a damper (not shown) may be disposed on the air supply branch to individually open and close the air supply branch to control the refrigeration of the refrigerating chamber 12, adjust the temperature in the refrigerating chamber 12, or individually close the refrigeration function of the refrigerating chamber 12.

The air cooling structure of the variable temperature chamber 13 is such that a variable temperature fan 291 is provided between the variable temperature evaporator 29 and the variable temperature chamber 13. If the variable temperature fan 291 is disposed in the box 1 and corresponds to the variable temperature chamber 13, the cold air cooled by the variable temperature evaporator 29 is sent into the variable temperature chamber 13 to provide cold energy for the variable temperature chamber 13 independently, so as to realize independent control of the temperature in the variable temperature chamber 13 and wide refrigeration of the variable temperature chamber 13, wherein the wide refrigeration temperature range can be 5 to-20 ℃.

In the refrigeration cycle system 2, the requirements of full-time refrigeration and time-sharing refrigeration of each refrigeration compartment in each refrigeration cycle loop can be met by controlling the on/off of the freezing fan 251, the temperature changing fan 291 and the ice making fan 152 and matching with the loop selection of the control valve 23, so that various different use modes are realized. The specific use mode is as follows:

fig. 5 is a schematic flow chart of a first mode of use of the refrigeration cycle system 2 of fig. 4.

Referring to fig. 5, the refrigeration cycle system 2 can perform separate refrigeration functions of the freezing chamber 11 and the refrigerating chamber 12 in the first use mode.

Specifically, in this mode, the control valve 23 selects to open the first valve outlet 232, and the refrigeration cycle system 2 operates using the first refrigeration cycle while the freezing fan 251 is open.

When the compressor 21 is started, the refrigerant is compressed by the compressor 21, then is cooled by the condenser 22, enters the freezing throttler 24 through the first valve outlet 232 of the control valve 23 for throttling and pressure reduction, and then enters the freezing evaporator 25 for absorbing heat, so that the independent refrigerating functions of the freezing chamber 11 and the refrigerating chamber 12 can be realized, and the ice making chamber 14 and the temperature change chamber 13 do not need to refrigerate in the use mode.

Fig. 6 is a schematic flow chart of a second mode of use of the refrigeration cycle system 2 of fig. 4.

Referring to fig. 6, in the second usage mode, the refrigeration cycle system 2 can perform the functions of cooling the ice maker 15 and cooling the freezer compartment 11 (the refrigerating compartment 12).

Specifically, in this mode, the control valve 23 selects the opening of the second valve outlet 233, and the refrigeration cycle system 2 operates using the second refrigeration cycle while being opened in cooperation with the ice-making fan 152 and the freezing fan 251.

When the compressor 21 is started, the refrigerant enters the ice making restrictor 26 through the compressor 21, the condenser 22 and the second valve outlet 233 of the control valve 23, is throttled and depressurized, and then enters the ice making pipe to absorb heat, so that the ice making machine 15 and the ice making chamber 14 are refrigerated; the refrigerant then enters the freezing evaporator 25 to absorb heat, thereby refrigerating the freezing chamber 11 (refrigerating chamber 12). That is, the functions of cooling the ice maker 15 and cooling the freezing chamber 11 (the refrigerating chamber 12) are simultaneously realized, and the use mode does not need cooling in the temperature changing chamber 13.

Fig. 7 is a schematic flow chart of a third mode of use of the refrigeration cycle system 2 of fig. 4.

Referring to fig. 7, in the third usage mode of the refrigeration cycle system 2, the ice maker 15 (ice making chamber 14) can perform a separate refrigeration function.

Specifically, in this mode, the control valve 23 selects the opening of the second valve outlet 233, and the refrigeration cycle system 2 operates using the second refrigeration cycle, while the freezing fan 251 is closed in coordination with the opening of the ice making fan 152.

When the compressor 21 is started, the refrigerant enters the ice making restrictor 26 through the compressor 21, the condenser 22 and the second valve outlet 233 of the control valve 23, is throttled and depressurized, and then enters the ice making pipe to absorb heat, so that the ice making machine 15 and the ice making chamber 14 are refrigerated; the refrigerant then enters the freezing evaporator 25, and since the freezing fan 251 is turned off and the air around the freezing evaporator 25 does not flow rapidly, the load of the refrigerant in the freezing steam generator is low, and the refrigerant flows in and out only at a low load in the freezing steam generator, and the freezing chamber 11 (refrigerating chamber 12) is not cooled efficiently. The function of cooling the ice maker 15 (ice making chamber 14) alone can be realized, and this mode of use does not require cooling in the freezing chamber 11, the refrigerating chamber 12, and the temperature changing chamber 13. Meanwhile, in the use mode, the refrigerant only needs to absorb heat in the ice making pipe, and the load is lower than that in the second use mode.

Fig. 8 is a schematic flow chart of a fourth mode of use of the refrigeration cycle system 2 of fig. 4.

Referring to fig. 8, in the fourth usage mode, the refrigeration cycle system 2 realizes the functions of cooling the temperature-changing chamber 13, cooling the ice-making chamber 14 (ice maker 15), and cooling the freezing chamber 11 (refrigerating chamber 12).

Specifically, in this mode, the control valve 23 selects the opening of the third valve outlet 234, and the refrigeration cycle 2 operates using the third refrigeration cycle while the variable temperature fan 291, the ice making fan 152, and the freezing fan 251 are all opened.

When the compressor 21 is started, the refrigerant enters the temperature-changing restrictor 28 from the third valve outlet 234 of the compressor 21, the condenser 22 and the control valve 23, is throttled and depressurized, and then sequentially enters the temperature-changing evaporator 29, the ice-making pipe and the freezing evaporator 25 to absorb heat, so as to refrigerate the temperature-changing chamber 13, the ice-making chamber 14 (ice maker 15) and the freezing chamber 11 (refrigerating chamber 12) respectively; and simultaneously, the functions of refrigerating the temperature changing chamber 13, the ice making chamber 14 (ice maker 15) and the freezing chamber 11 (refrigerating chamber 12) are realized. In this usage mode, the load of the refrigerant is highest; however, the ice making function can be always turned on to make ice continuously for 24 hours, and the temperature changing chamber 13 and the freezing chamber 11 (the refrigerating chamber 12) can be turned on or off according to the refrigerating requirement, so that the ice making process is not interrupted, continuous and efficient ice making is ensured, the use of other refrigerating chambers is not influenced, and the ice making machine is flexible and convenient to use.

Fig. 9 is a schematic flow chart of a fifth mode of use of the refrigeration cycle system 2 of fig. 4.

Referring to fig. 9, in the fifth usage mode, the refrigeration cycle system 2 can perform the functions of cooling the temperature-variable chamber 13 and cooling the freezing chamber 11 (the refrigerating chamber 12).

Specifically, in this mode, the control valve 23 selectively opens the third valve outlet 234, the refrigeration cycle 2 operates using the third refrigeration cycle, and the ice making fan 152 is turned off in conjunction with the opening of the temperature varying fan 291 and the freezing fan 251.

When the compressor 21 is started, the refrigerant enters the temperature-changing throttler 28 from the third valve outlet 234 of the compressor 21, the condenser 22 and the control valve 23, is throttled and depressurized, and then sequentially enters the temperature-changing evaporator 29, the ice making pipe and the freezing evaporator 25 to absorb heat; since the ice making fan 152 is not turned on and the ice maker 15 stops making ice at the same time, the refrigerant only performs inflow and outflow operations with a low load in the cooling pipe 27, and does not perform an efficient cooling operation on the ice maker 15 (ice making chamber 14), so that the functions of cooling the temperature changing chamber 13 and cooling the freezing chamber 11 (refrigerating chamber 12) can be realized, and the ice making chamber 14 (ice maker 15) does not need to be cooled in this usage mode.

Fig. 10 is a schematic flow chart of a sixth mode of use of the refrigeration cycle system 2 of fig. 4.

Referring to fig. 10, in the sixth usage mode, the refrigeration cycle system 2 can perform the functions of cooling the temperature-variable chamber 13 and cooling the ice-making chamber 14 (ice maker 15).

Specifically, in this mode, the control valve 23 selectively opens the third valve outlet 234, the refrigeration cycle 2 operates using the third refrigeration cycle, the temperature varying fan 291 and the ice making fan 152 are simultaneously opened, and the freezing fan 251 is closed.

When the compressor 21 is started, the refrigerant enters the temperature-changing throttler 28 from the third valve outlet 234 of the compressor 21, the condenser 22 and the control valve 23, is throttled and depressurized, and then sequentially enters the temperature-changing evaporator 29, the ice making pipe and the freezing evaporator 25 to absorb heat; when the freezing fan 251 is not turned on, the load of the refrigerant in the freezing steam device is low, the refrigerant only flows in and out with low load in the freezing steam device, and the freezing chamber 11 (the refrigerating chamber 12) is not efficiently refrigerated, so that the functions of refrigerating the temperature-variable chamber 13 and the ice-making chamber 14 (the ice maker 15) can be realized, and the freezing chamber 11 (the refrigerating chamber 12) does not need to be refrigerated in the use mode.

Fig. 11 is a schematic flow chart of a seventh mode of use of the refrigeration cycle system 2 of fig. 4.

Referring to fig. 11, in the seventh usage mode, the refrigeration cycle 2 can realize the independent refrigeration function of the variable temperature compartment 13.

Specifically, in this mode, the control valve 23 selectively opens the third valve outlet 234, the refrigeration cycle 2 operates using the third refrigeration cycle, and the freezing fan 251 and the ice-making fan 152 are turned off in conjunction with the temperature-changing fan 291 being turned on.

When the compressor 21 is started, the refrigerant enters the temperature-changing throttler 28 from the third valve outlet 234 of the compressor 21, the condenser 22 and the control valve 23, is throttled and depressurized, and then sequentially enters the temperature-changing evaporator 29, the ice making pipe and the freezing evaporator 25 to absorb heat; when the ice making fan 152 and the freezing fan 251 are not turned on, the loads of the refrigerant in the refrigerating pipe 27 and the refrigerant in the freezing steam device are both low, the refrigerant only performs the inflow and outflow work with low load in the refrigerating pipe 27 and the freezing steam device, and the efficient refrigerating work of the ice making machine 15 (ice making chamber 14) and the freezing chamber 11 (refrigerating chamber 12) is not performed, so that the independent refrigerating function of the temperature changing chamber 13 can be realized, and in the use mode, the ice making machine 15 (ice making chamber 14) and the freezing chamber 11 (refrigerating chamber 12) do not need to refrigerate.

The working principle of the refrigeration cycle system 2 provided by the present application is: three refrigeration circulation loops are connected in series and in parallel to form a refrigeration circulation system 2, the temperature-changing chamber 13 is independently refrigerated through a temperature-changing evaporator 29, the ice maker 15 and the ice making chamber 14 are independently refrigerated through a refrigeration pipe 27, and the freezing chamber 11 and the refrigerating chamber 12 are independently refrigerated through a freezing evaporator 25, so that the refrigeration requirements of all refrigeration chambers are met, and the refrigeration efficiency of the ice maker 15 can be considered; the refrigeration cycle system 2 performs circuit selection by the control valve 23, selects one of the refrigeration cycle circuits to operate according to the refrigeration priority, and the refrigerant always flows in one of the refrigeration cycle circuits, so that the problem of refrigerant distribution does not need to be considered.

Meanwhile, the requirements of full-time refrigeration and time-sharing refrigeration of each refrigeration chamber are met by controlling the on-off of the ice maker 15 and the fans in each refrigeration chamber; the refrigeration cycle system 2 can provide various different use modes, intelligent selection control is carried out according to the refrigeration requirements of each refrigeration chamber, and the development of the refrigerator towards intellectualization and energy conservation is facilitated.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A refrigerator, characterized by comprising;

a box body, wherein a freezing chamber and an ice making chamber which are separated from each other are arranged in the box body;

an ice maker disposed corresponding to the ice making chamber; and

a refrigeration cycle system comprising:

a control valve having a valve inlet for inflow of refrigerant and first and second valve outlets which are individually on-off controllable, respectively; the first valve outlet and the second valve outlet are respectively communicated with the valve inlet;

a freezing restrictor having an inlet in communication with the first valve outlet;

an ice making restrictor having an inlet in communication with the second valve outlet;

the inlet of the refrigerating pipe is communicated with the outlet of the ice-making restrictor; the refrigeration pipe is arranged corresponding to the ice maker and used for providing refrigeration capacity for the ice maker;

a freezing evaporator provided corresponding to the freezing chamber; and the inlet of the freezing evaporator is respectively communicated with the freezing throttler and the outlet of the refrigerating pipe.

2. The refrigerator of claim 1, wherein the ice maker includes a housing and an ice cube tray, the ice cube tray being reversibly disposed in the housing; the shell is arranged in the ice making chamber;

the refrigerating pipe extends into the shell to exchange heat with the ice cube tray.

3. The refrigerator as claimed in claim 2, wherein the ice maker further comprises an ice making fan disposed in the housing and for sending cold air cooled in the housing through the cooling duct into the ice making chamber.

4. The refrigerator according to any one of claims 1 to 3, wherein a temperature varying chamber is further provided in the cabinet, the temperature varying chamber being separated from the freezing chamber and the ice making chamber;

the refrigeration cycle system also comprises a variable temperature restrictor and a variable temperature evaporator;

the control valve also has a third valve outlet which can be controlled by an independent switch, and the third valve outlet is communicated with the valve inlet;

the inlet of the variable-temperature restrictor is communicated with the outlet of the third valve;

the variable temperature evaporator is arranged corresponding to the variable temperature chamber, an inlet of the variable temperature evaporator is communicated with an outlet of the variable temperature restrictor, and an outlet of the variable temperature evaporator is communicated with an inlet of the refrigerating pipe.

5. The refrigerator as claimed in claim 4, wherein the refrigerating cycle system further comprises a temperature varying fan disposed in the cabinet and corresponding to the temperature varying chamber; the temperature-changing fan is used for sending the cold air cooled by the temperature-changing evaporator into the temperature-changing chamber.

6. The refrigerator as claimed in any one of claims 1 to 3, wherein a ventilation duct communicating with the freezing chamber is provided in the cabinet, and a freezing fan is provided in the ventilation duct;

the freezing fan is used for sending cold air cooled by the freezing evaporator into the freezing chamber through the ventilation air duct.

7. The refrigerator as claimed in claim 6, wherein a refrigerating chamber is further provided in the cabinet, the refrigerating chamber being separated from the freezing chamber and the ice-making chamber;

the ventilation air duct is provided with an air supply branch communicated with the refrigerating chamber; and an air door for independently opening and closing the air supply branch is arranged in the air supply branch.

8. The refrigerator of claim 7, wherein the ice making compartment is disposed in the refrigerating compartment.

9. The refrigerator as claimed in claim 1, wherein the control valve is an electric valve.