WO2021253804A1

WO2021253804A1 - Refrigerator

Info

Publication number: WO2021253804A1
Application number: PCT/CN2020/142367
Authority: WO
Inventors: 杨春华; 黎志东
Original assignee: 海信容声(广东)冰箱有限公司
Priority date: 2020-06-15
Filing date: 2020-12-31
Publication date: 2021-12-23

Abstract

A refrigerator, comprising a refrigerator body (1), an ice maker (15) and a refrigeration circulation system (2). The refrigerator body (1) has a first chamber (12) and an ice-making chamber (14), with the ice-making chamber (14) being disposed within the first chamber (12). The ice maker (15) is disposed in the ice-making chamber (14), and the ice maker (15) comprises at least one set of ice-making trays (153) for holding water for ice-making. The refrigeration circulation system (2) is disposed within the refrigerator body (1) and comprises a compressor (21), a condenser (22), a control valve (23), a first evaporator (25) and a second evaporator (27). A first end of the condenser (22) is connected to a second end of the compressor (21), and a valve inlet of the control valve (23) is connected to a second end of the condenser (22); a first end of the first evaporator (25) is connected to a first valve outlet (232) of the control valve (23), and a second end thereof is connected to a first end of the compressor (21); the first evaporator (25) provides the refrigerating capacity for the first chamber (12); the second evaporator (27) is disposed in the ice maker (15), with a first end thereof being connected to a second valve outlet (233) of the control valve (23), and a second end thereof being connected to a first end of the first evaporator (25); and the second evaporator (27) is disposed on at least one side of the at least one set of ice-making trays (153) to provide the refrigerating capacity for the at least one set of ice-making trays (153).

Description

refrigerator

This application claims the priority of the Chinese patent application filed on June 15, 2020 with application number 202010542751.1 and the Chinese patent application filed on June 15, 2020 with application number 202021104570.2, the entire contents of which are incorporated into this application by reference middle.

Technical field

The present disclosure relates to the technical field of refrigeration equipment, and in particular to a refrigerator.

Background technique

Refrigerators are the most commonly used household appliances for food storage. In recent years, with the continuous improvement of people's living standards, the performance requirements of refrigerators have become higher and higher. In order to realize the ice-making function, an ice-making chamber is usually required.

Summary of the invention

A refrigerator is provided. The refrigerator includes a cabinet, an ice maker and a refrigeration cycle system. The box has a first chamber and an ice making chamber, and the ice making chamber is arranged in the first chamber. The ice maker is disposed in the ice making chamber and includes at least one set of ice making trays, and the at least one set of ice making trays are configured to hold water for making ice. The refrigeration cycle system is arranged in the box and includes a compressor, a condenser, a control valve, a first evaporator and a second evaporator. The first end of the condenser is connected to the second end of the compressor, and the valve inlet of the control valve is connected to the second end of the condenser. The first end of the first evaporator is connected with the first valve outlet of the control valve, the second end is connected with the first end of the compressor, and the first evaporator is configured as the first valve outlet. The chamber provides cold capacity. The second evaporator is arranged in the ice maker, the first end of the second evaporator is connected with the second valve outlet of the control valve, and the second end is connected with the first end of the first evaporator The second evaporator is arranged on at least one side of the at least one set of ice-making trays, and is configured to provide cold energy for the at least one set of ice-making trays.

Description of the drawings

In order to explain the technical solutions of the present disclosure more clearly, the following will briefly introduce the drawings that need to be used in some embodiments of the present disclosure. Obviously, the drawings in the following description are merely appendices to some embodiments of the present disclosure. Figures, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limitations on the actual size of the product, the actual process of the method, and the actual timing of the signal involved in the embodiments of the present disclosure.

Fig. 1 is a schematic structural diagram of a refrigerator according to some embodiments;

Figure 2 is a schematic structural diagram of an ice maker according to some embodiments;

Fig. 3 is a schematic diagram of an exploded structure of the ice maker shown in Fig. 2;

Figure 4 is a schematic diagram of a refrigeration cycle system according to some embodiments;

Fig. 5 is a schematic diagram of a refrigeration circuit of a refrigerator in a first use mode according to some embodiments;

Fig. 6 is a schematic diagram of a refrigeration circuit of a refrigerator in a second use mode according to some embodiments;

Fig. 7 is a schematic diagram of a refrigeration circuit of a refrigerator in a third use mode according to some embodiments;

Fig. 8 is a schematic diagram of a refrigeration circuit of a refrigerator in a fourth use mode according to some embodiments;

Fig. 9 is a schematic diagram of a refrigeration circuit of a refrigerator in a fifth use mode according to some embodiments;

Fig. 10 is a schematic diagram of a refrigeration circuit of a refrigerator in a sixth use mode according to some embodiments;

Fig. 11 is a schematic diagram of a refrigeration circuit of a refrigerator in a seventh use mode according to some embodiments.

detailed description

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided in the present disclosure, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present disclosure.

Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms such as the third person singular form "comprises" and the present participle form "comprising" are Interpreted as being open and inclusive means "including, but not limited to." In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples" "example)" or "some examples" are intended to indicate that a specific feature, structure, material, or characteristic related to the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics described may be included in any one or more embodiments or examples in any suitable manner.

In the description of this application, it needs to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner" and "outer" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply the pointed device Or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

Hereinafter, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

In describing some embodiments, the expression "connected" and its extensions may be used. For example, the term "connected" may be used when describing some embodiments to indicate that two or more components are directly or indirectly connected to each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

"A and/or B" includes the following three combinations: A only, B only, and the combination of A and B.

As used herein, "substantially" or "approximately" includes the stated value and the average value within the acceptable deviation range of the specified value, where the acceptable deviation range is considered by those of ordinary skill in the art to be discussed The measurement and the error associated with the measurement of a specific quantity (ie, the limitations of the measurement system) are determined.

In the related art, when the refrigerator has multiple refrigeration chambers, for example, when the refrigerator has a refrigerator compartment, a freezer compartment, a temperature changing room, and an ice making compartment, how to configure the position and connection sequence of each component in the refrigeration cycle system In order to meet the refrigeration requirements of multiple refrigeration compartments at the same time, while taking into account the efficiency of ice making, it is a problem that refrigerator designers need to consider.

Some embodiments of the present disclosure provide a refrigerator. Fig. 1 is a schematic structural diagram of the refrigerator, and Fig. 4 is a schematic diagram of a refrigeration cycle system 2 of the refrigerator. 1 and 4, the refrigerator includes a box body 1 having a plurality of compartments separated from each other. For example, the box body 1 is provided with a first chamber 12, a second chamber 11, and a third chamber 13.

Exemplarily, the first cavity 12 is a refrigerating room, the second cavity 11 is a freezing room, and the third cavity 13 is a temperature changing room, so that the refrigerator can meet different cooling requirements such as refrigeration, freezing, and temperature changes. For example, as shown in Figure 1, the freezer compartment can be arranged on the lower left side of the box 1, and the temperature-changing room can be arranged on the lower right side of the box 1. There can be two refrigerating rooms in the box 1, both of which are arranged It is located on the upper side of the inside of the box 1, and is distributed left and right. It should be noted that the number and distribution positions of freezer compartments, refrigerating compartments, and temperature-changing chambers can be changed according to actual needs, and are not limited here.

In some embodiments, referring to FIG. 1, in the case where the above-mentioned multiple chambers include the first chamber 12, the box body 1 further has an ice making chamber 14 provided in the first chamber 12. Referring to FIG. 1, the refrigerator further includes an ice maker 15 arranged in the ice making chamber 14. Here, the refrigerator can make ice through the ice maker 15 and store the made ice in the ice making compartment 14 for users to take. The user can open the door of the refrigerator compartment 12 and the door of the ice making compartment 14 in turn to take the ice cubes. .

It is understandable that in the case of the refrigerating compartment with 11 positions in the first compartment, the temperature of the refrigerating compartment under working condition (for example, the temperature range of the refrigerating compartment is 2°C to 10°C) is usually higher than that of the refrigerating compartment under working condition. The temperature of the ice compartment 14 (for example, lower than or equal to 0°C). Based on this, the ice making chamber 14 and the first cavity 12 may be isolated from each other. For example, when the door of the ice making chamber 14 is not opened, the two are basically thermally insulated.

In some embodiments, referring to FIGS. 2 and 3, the ice maker 15 includes at least one set of ice making trays 153. Each group of ice-making trays 153 may include a plurality of ice-making trays. Here, each set of ice-making trays 153 is used to hold water used for making ice. In addition, in the process of water condensing into ice, the ice making tray can also function as a mold, so that ice cubes are formed in the ice making tray.

Referring to FIG. 4, the refrigerator further includes a refrigeration cycle system 2 arranged in the cabinet 1, and the refrigeration cycle system 2 includes a compressor 21, a condenser 22, a control valve 23, a first evaporator 25 and a second evaporator 27. The first end of the condenser 22 is connected to the second end of the compressor 21, and the valve inlet 231 of the control valve is connected to the second end of the condenser 22. The first end of the first evaporator 25 is connected to the first valve outlet 232 of the control valve 23, the second end of the first evaporator 25 is connected to the first end of the compressor 21, and the first evaporator 25 is configured as a A chamber 12 provides cold capacity. The second evaporator 27 is arranged in the ice making 15, the first end of the second evaporator 27 is connected to the second valve outlet 233 of the control valve 23, and the second end of the second evaporator 27 is connected to the first evaporator 27 of the first evaporator. One end is connected, and the second evaporator is arranged on at least one side of the at least one set of ice-making trays 153, and is configured to provide cooling for the at least one set of ice-making trays 153.

It should be noted that, since the second evaporator 27 is arranged on at least one side of at least one set of ice-making trays 153, the second evaporator 27 can directly use the evaporative heat absorption of the refrigerant circulating therein to make at least one set of ice-making trays. The compartments 153 are cooled, so that the water used for making ice contained in at least one set of ice-making compartments 153 is condensed into ice. In this way, the ice maker 15 can realize direct cooling ice making, so that the ice making time of the refrigerator is shorter and the ice making speed is faster. In other words, the refrigerator can have a larger amount of ice-making per unit time, and the ice-making efficiency is higher.

Exemplarily, referring to FIG. 3, the second evaporator 27 is in contact with the bottom wall W2 and/or the side wall W1 of the at least one set of ice making trays 153, which can reduce cooling loss and further improve the production of the second evaporator 27. Ice efficiency.

It is worth noting that no matter when the first valve outlet 232 or the second valve outlet 233 of the control valve 23 is in communication with its valve inlet 231, the refrigerant in the refrigeration cycle system 2 will pass through the first evaporator 25, thereby Meet the refrigeration requirements of the first chamber 12.

When the second valve outlet 233 of the control valve 23 communicates with its valve inlet 231, the refrigerant in the refrigeration cycle system 2 will pass through the second evaporator 27 and the first evaporator 25, so that the refrigerator can be quickly and efficiently While making ice, the function of the first chamber 12 can be realized at the same time. For example, when the first chamber 12 is a refrigerating chamber, the refrigerator can quickly and efficiently make ice, and at the same time, the items placed in the first chamber 12 can be refrigerated.

Here, the control valve 23 may be an electronically controlled valve with one inlet and multiple outlets. For example, the control valve 23 is a solenoid valve.

In some embodiments, referring to FIG. 4, the refrigeration cycle system 2 further includes a second fan 152 provided in the cabinet 1. The second fan 152 is arranged opposite to the second evaporator 27, and the second fan 152 is configured to send the air cooled by the second evaporator 27 into the ice making compartment 14 to cool the ice making compartment 14.

It should be noted that when the valve inlet 231 of the control valve 23 communicates with its second valve outlet 233, when the second fan 152 is not running, the air around the second evaporator 27 will not flow quickly, which can be regarded as The air cooled by the second evaporator 27 is not sent from the ice maker 15 into the ice making chamber 14; while the second fan 152 is operating, the air cooled by the second evaporator 27 is sent from the ice maker 15 Enter the ice making compartment 14 so that the refrigerator can cool the ice making compartment 14. In this way, by controlling the operating state of the second fan 152, the cooling status of the ice making compartment 14 can be individually controlled.

By refrigerating the ice making compartment 14, the ice cubes stored in the ice making compartment 14 can be prevented from melting into water, that is, the ice storage function of the ice making compartment 14 can be realized. By stopping the refrigeration of the ice making compartment 14, the temperature difference between the ice making compartment 14 and the first cavity 12 can be reduced. For example, when the first cavity 12 is a refrigerating compartment, the temperature difference between the two can be reduced. The mutual influence of the ice making chamber 14 and the first chamber 12. In addition, when the second fan 152 is not operating, since the refrigerant flowing through the second evaporator 27 does less work, the energy consumption of the refrigerator can also be reduced.

In some embodiments, referring to FIGS. 2 and 3, the ice maker 15 further includes a body 157, an ice turning bar 154 and at least one heater 155.

The above-mentioned second fan 152 is disposed in the body 157, and the ice turning lever 154 is rotatably connected to the body 157. The multiple ice-making trays of each group of ice-making trays 153 are arranged along the extending direction of the ice-turning rod 154, and each group of ice-making trays 153 is fixedly connected to the ice-turning rod 154. Each heater 155 is provided on a corresponding group of ice-making trays 153 and is configured to heat the ice-making trays 153 of the corresponding group to separate ice from the ice-making trays 153 of the corresponding group. For example, each heater 155 is elongated or cylindrical, extends along the extending direction of the ice turning bar 154, and is disposed on the wall (for example, the side wall W1) of the ice tray 153 of the corresponding group. In this way, the heater 155 heats the wall of the ice-making tray, which can melt the part of the ice cubes formed in the ice-making tray that contacts the wall of the ice-making tray, which facilitates the separation of the ice cubes and the ice-making tray.

Exemplarily, referring to FIG. 3, the body 157 is provided with a fourth ventilation channel 158, the first port of the fourth ventilation channel 158 is provided on the surface of the body 157 close to the ice turning rod 154, and the second ventilation channel 158 is The port is provided on the surface of the body 157 exposed to the ice making chamber 14, and the fourth ventilation passage 158 communicates with the ice making chamber 14 through its second port. The second fan 152 is disposed in the fourth ventilation passage 158. In this case, the second fan 152 can send the air in the ice making chamber 14 to the second evaporator 27 of the ice maker 15 through the fourth ventilation passage 158. After the air is cooled by the second evaporator 27, It is sent out from the ice maker 15 to the ice making chamber 14.

Here, the number of ice-making trays included in the ice maker 15 is not limited. For example, the ice maker 15 may include a set of ice-making trays 153, or may include multiple sets of ice-making trays arranged along the circumference of the ice turning bar 154. Ice tray 153. Each group of ice making trays 153 may include one ice making tray or multiple ice making trays.

Exemplarily, referring to FIG. 3, the ice maker 15 includes two sets of ice making trays 153, and the two sets of ice making trays are arranged along the circumference of the ice turning rod 154.

In some embodiments, referring to FIG. 3, the second evaporator 27 is a refrigeration tube arranged on at least one side of the two sets of ice making trays 153.

Exemplarily, as shown in FIG. 3, the refrigeration tube is in contact with the two sets of ice-making trays 153, for example, the bottom wall W2 and/or the side wall W1 of the two sets of ice-making trays 153 are in contact, so that the cooling provided by the refrigeration tube can be increased. The ice-making utilization rate can improve the ice-making efficiency of the refrigeration tube.

Exemplarily, as shown in FIG. 3, the second evaporator 27 is a refrigerating tube arranged on one side of the two sets of ice-making trays 153, and the refrigerating tube includes a bent part 271 and two non-bent parts 272. The non-bending portion 272 is connected by the bending portion 271. Compared with the two non-bending portions 272, the bending portion 271 is closer to the end faces F of the two sets of ice trays 153 close to the body 157, and the two non-bending portions 272 both extend along the extending direction of the ice turning bar 154.

In some embodiments, referring to FIGS. 2 and 3, the ice maker 15 further includes an upper shell 151 and a lower shell 156 that are detachably connected to the body 157, and the upper shell 151 can be covered with at least one set of ice-making trays. On the first side of 153, the lower shell 156 can be covered on the second side of the at least one set of ice-making trays 153 opposite to the first side. The upper housing 151 and the lower housing 156 form an outlet 159 at each end away from the body 157.

Exemplarily, referring to FIG. 3, the lower housing 156 includes a slideway 1561 connected to the outlet 159. In a plane perpendicular to the plane where the slide 1561 is located, the minimum distance from the first end of the slide 1561 to the ice turning rod 153 is less than the minimum distance from the second end of the slide 1561 to the ice turning rod 153, and the first end of the slide 1561 The two ends are connected with the outlet 159.

In this way, the ice cubes in each group of ice making trays 153 can fall on the slideway 1561 of the lower housing 156, and enter the ice making chamber 14 from the ice maker 15 through the slideway 1561 and the exit 159, so as to facilitate ice storage. In the ice making chamber 14, and the ice maker 15 continues to make ice.

It should also be noted that the air cooled by the second evaporator 27 can be discharged to the ice making compartment 14 through the outlet 159, so that the air in the ice making compartment 14 can enter the ice making machine 15 through the fourth ventilation passage 158. After the air is cooled by the second evaporator 27, it is discharged from the outlet 159 to the ice making compartment 14, so that the ice making compartment 14 and the ice making machine 15 can exchange air.

The ice making process of the ice maker 15 will be exemplarily introduced below with reference to FIG. 3. The water used for making ice is injected into at least one set of ice making trays 153, and the second evaporator 27 cools the at least one set of ice making trays 153, and the water in each ice making tray is condensed into ice cubes; The ice maker 155 heats to melt the part of the ice cube that is in contact with the wall of the ice making tray, thereby separating the ice cube from the ice making tray; A group of ice-making trays 153 fall into the slideway 1561 of the lower shell 156. The ice cubes slide along the inclined slideway 1561 to the exit 159, and enter the ice-making chamber 14 through the exit 159 for storage. . In addition, the refrigerator may also be provided with a water storage device, and the water storage device may be used to refill the at least one set of ice making trays 153, so that the ice can be reproduced.

In some embodiments, referring to FIG. 4, the refrigeration cycle system 2 further includes a first pipeline 201, a first throttle 24, a second pipeline 202 and a second throttle 26. The first valve outlet 232 of the control valve 23 and the first evaporator 25 are connected by a first pipeline 201, and the second valve outlet 233 of the control valve 23 and the second evaporator 27 are connected by a second pipeline 202. The first restrictor 24 is arranged on the first pipeline 201 and is configured to throttle and reduce the pressure of the refrigerant in the first pipeline 201; the second restrictor 26 is arranged on the second pipeline 202 and is configured to It is configured to throttle and reduce the pressure of the refrigerant in the second pipe 202.

In some embodiments, referring to FIG. 1, the refrigerator further includes a third chamber 13 provided in the cabinet 1. Referring to FIG. 4, the refrigeration cycle system 2 further includes a third evaporator 29. The first end of the third evaporator 29 is connected to the third valve outlet 234 of the control valve 23, the second end of the third evaporator 29 is connected to the first end of the second evaporator 27, and the third evaporator 29 is configured as Provide cold capacity for the third chamber 13. Here, the temperature adjustable range in the third chamber 13 is larger than the temperature adjustable range in the first chamber 12. For example, the third chamber 13 is a temperature changing room, and the first chamber 12 is a refrigerating room. In this way, the refrigerator can have a refrigerating function and an efficient ice making function, as well as a temperature change function.

In some embodiments, referring to FIG. 4, the refrigeration cycle system 2 further includes a third pipeline 203 and a third throttle 28. The third valve outlet 234 of the control valve 23 and the third evaporator 29 are connected by a third pipeline connection 203. The third restrictor 28 is disposed on the third pipeline 203, and the third restrictor 28 is configured to throttle and reduce the pressure of the refrigerant in the third pipeline 203.

Hereinafter, referring to FIG. 4, the working process of the refrigeration cycle system 2 of the refrigerator will be exemplarily introduced.

The compressor 21 is used to compress the refrigerant vapor in the refrigeration cycle system 2 to form high temperature and high pressure refrigerant vapor. The condenser 22 is used to condense the high-temperature and high-pressure refrigerant vapor into a medium-temperature and high-pressure liquid refrigerant.

The refrigerant vapor enters the compressor 21 from the first end of the compressor 21 and is compressed into high temperature and high pressure refrigerant vapor by the compressor 21. The high temperature and high pressure refrigerant vapor exits the second end of the compressor 21 and enters the condenser 22 The condenser 22 condenses the high-temperature and high-pressure refrigerant vapor into a medium-temperature and high-pressure liquid refrigerant.

The medium-temperature and high-pressure liquid refrigerant flows to the control valve 23, and flows out of one of the first valve outlet 232, the second valve outlet 233, and the third valve outlet 234 through the valve inlet 231 of the control valve 23, and flows to the corresponding pipe Road and corresponding throttle.

The throttle is used to throttle and reduce the pressure of the medium-temperature and high-pressure liquid refrigerant, turning it into a low-temperature and low-pressure refrigerant vapor. Exemplarily, the restrictor in the refrigerator may be a capillary restrictor.

The low-temperature and low-pressure refrigerant vapor flows to the corresponding evaporator through the corresponding pipeline. The evaporator is used to evaporate and boil the low-temperature and low-pressure refrigerant vapor therein, and absorb the heat of the surrounding medium (for example, the air around the evaporator), thereby achieving refrigeration.

The evaporated refrigerant becomes refrigerant vapor again, and enters the compressor 21 from the first end of the compressor 21, so as to realize circulating refrigeration.

Hereinafter, referring to FIG. 4, the refrigerant flow paths of the above-mentioned refrigeration cycle system 2 and the corresponding operation modes of the refrigerator will be exemplarily introduced. Here, take the first chamber 12 as a refrigerating chamber and the third chamber 13 as a temperature changing room as an example.

In the refrigeration cycle system 2, the second end of the first evaporator 25 communicates with the first end of the compressor 21, the second end of the compressor 21 communicates with the first end of the condenser 22, and the second end of the condenser 22 communicates with the first end of the condenser 22. The two ends are connected to the valve inlet 231 of the control valve 23, the valve inlet 231 is in communication with the first valve outlet 232, the first valve outlet 232 is in communication with the first end of the first throttle 24, The second end is communicated with the first end of the first evaporator 25, thereby forming the first refrigeration of the compressor 21→condenser 22→control valve 23→first throttle 24→first evaporator 25→compressor 21 Circulation loop.

In the circuit of the first refrigeration cycle, the first throttle 24 and the first evaporator 25 form a series structure. In this circuit, after the refrigerant is throttled and depressurized by the first throttle 24, it only enters the first evaporator 25 to evaporate and absorb heat, which can separately provide cold energy for the freezer compartment. When the compressor 21 is turned on, the refrigerant is compressed by the compressor 21, cooled by the condenser 22, and then the first valve outlet 232 is selectively opened through the control valve 23, and the refrigerant enters the first throttle 24 through the first valve outlet 232 After throttling and depressurization, it enters the first evaporator 25 to evaporate and absorb heat, provide cold energy for the refrigerating compartment, and cool it.

The second valve outlet 233 communicates with the first end of the second restrictor 26, the second end of the second restrictor 26 communicates with the first end of the second evaporator 27, and the second end of the second evaporator 27 The end is connected with the first end of the first evaporator 25 to form a compressor 21→condenser 22→control valve 23→second throttle 26→second evaporator 27→first evaporator 25→compressor 21 The second refrigeration cycle.

In the circuit of the second refrigeration cycle, the second throttle 26, the second evaporator 27, and the first evaporator 25 form a series structure. In this circuit, the refrigerant enters the second evaporator 27 and the first evaporator 25 to absorb heat respectively after being throttled and depressurized by the second throttle 26, which can provide cooling to the ice maker 15 and the refrigerating compartment in turn. quantity.

The third valve outlet 234 communicates with the first end of the third restrictor 28, the second end of the third restrictor 28 communicates with the inlet of the third evaporator 29, and the second end of the third evaporator 29 communicates with The first end of the second evaporator 27 is connected to form a compressor 21→condenser 22→control valve 23→third restrictor 28→third evaporator 29→second evaporator 27→first evaporator 25 →The third refrigeration cycle of the compressor 21.

In the circuit of the third refrigeration cycle, the third restrictor 28, the third evaporator 29, the second evaporator 27, and the first evaporator 25 form a series structure. In this circuit, the refrigerant enters the third evaporator 29, the second evaporator 27, and the first evaporator 25 in sequence after being throttled and pressure-reduced by the third throttle 28, evaporates and absorbs heat, so that it can be converted into a greenhouse, The ice maker 15 and the refrigerating compartment provide cold capacity.

In the refrigeration cycle system 2 described above, there are three refrigeration cycle circuits, and the control valve 23 can be controlled according to the refrigeration demand and refrigeration priority of each chamber, and the corresponding circuit can be selected to work to meet different refrigeration demands.

Continuing to refer to Fig. 4, in the refrigeration cycle system 2, the first chamber 12 and the third chamber 13 may adopt an air-cooled structure.

In some embodiments, referring to FIG. 4, the refrigeration cycle system 2 further includes a first fan 251, and the first fan 251 is disposed opposite to the first evaporator 25. The first fan 251 is configured to send the air cooled by the first evaporator 25 into the first chamber 12 to cool the first chamber 12. In this way, the first chamber 12 can achieve air cooling.

In some embodiments, referring to FIGS. 1 and 4, the refrigerator further includes a second chamber 11, a first ventilation channel 101, a second ventilation channel 102, a third ventilation channel 103, a first air door 1021, and a second chamber 11 disposed in the cabinet 1. The second air door 1031. The above-mentioned first fan 251 is arranged in the first ventilation passage 101, the second ventilation passage 102 is connected between the first ventilation passage 101 and the first chamber 12, and the third ventilation passage 103 is connected between the first ventilation passage 101 and the first ventilation passage 101. Between the two chambers 11. In this case, the first fan 251 is configured to send the air cooled by the first evaporator 25 into the first chamber 12 through the first ventilation channel 101 and the second ventilation channel 102, and to pass through the first ventilation channel 101. And the third ventilation channel 103 is sent into the second chamber 11.

The second ventilation passage 102 is provided with a first damper 1021, and the third ventilation passage 103 is provided with a second damper 1031. The first damper 1021 is configured to open or close the second ventilation passage 102, and the second damper 1031 is configured to open or close the third ventilation passage 103.

In this way, by controlling the first damper 1021, the second ventilation passage 102 can be opened or closed, so as to realize the cooling control of the first chamber 12; by controlling the second damper 1031, the third ventilation passage 103 can be opened or closed. Thus, the refrigeration control of the second chamber 11 is realized.

Exemplarily, the first chamber 12 is a refrigerating chamber, and the second chamber 11 is a freezing chamber. For example, when the first evaporator 25 is cooling, when the first damper 1021 is opened and the second damper 1031 is closed, the refrigerating compartment can be cooled separately; and when the second damper 1031 is opened and the first damper 1021 is closed , The freezer compartment can be cooled separately; when the first damper 1021 and the second damper 1031 are opened at the same time, the refrigerating compartment and the freezer compartment can be cooled at the same time.

In some embodiments, referring to FIGS. 1 and 4, the refrigeration cycle system 2 further includes a third fan 291 disposed opposite to the third evaporator 29, and the third fan 291 is configured to send the air cooled by the third evaporator 29 Enter the third chamber 13 to cool the third chamber 13.

Exemplarily, referring to FIG. 1, the refrigerator further includes a fifth ventilation channel 105 arranged in the cabinet 1, one end of the fifth ventilation channel 105 is connected to the temperature changing room 13, and the third fan 291 is arranged in the fifth ventilation channel 105. In this case, the fifth ventilation passage 105 facilitates the circulation of air around the third fan 291, thereby facilitating the third fan 291 to provide wind power, so that the air cooled by the third evaporator 29 is sent into the third chamber. 13. The cooling of the third chamber 13 is realized.

It should be noted that when the valve inlet 231 of the control valve 23 communicates with the third valve outlet 234, when the third fan 291 is not running, the air cooled by the third evaporator 29 will not be sent to the third fan. Therefore, the refrigerator can be controlled not to cool the third chamber 13; and when the third fan 291 is running, the air cooled by the third evaporator 29 is sent into the third chamber 13, so the refrigerator can cool the third chamber 13 The chamber 13 is cooled. In this way, by controlling the operating state of the third fan 291, the cooling conditions in the third chamber 13 can be individually controlled. In the case of a 13-position variable-temperature greenhouse in the third chamber, a wide-width cooling of the variable-temperature greenhouse can be achieved. The temperature range of refrigeration can reach 5°C to -20°C.

In the above-mentioned refrigeration cycle system 2, the operating states of the first fan 251, the third fan 291, and the second fan 152 can be controlled, and the circuit selection of the control valve 23 can be used to realize each refrigeration cycle in each refrigeration cycle. The demand for full-time refrigeration and time-sharing refrigeration to achieve a variety of different usage modes.

The following will exemplify different usage modes of the refrigerator with reference to Figs. 5-11. Here, take the first compartment as a 12-position refrigerating compartment, the second compartment 11 as a freezing compartment, and the third compartment 13 as a warming room as an example.

Fig. 5 is a schematic diagram of the refrigeration circuit of the refrigerator in the first use mode. Referring to Fig. 5, in the first use mode, the refrigeration function of the freezer compartment and/or refrigerating compartment can be realized.

In this mode, the control valve 23 opens the first valve outlet 232, the refrigerant flows in the first refrigeration cycle of the refrigeration cycle system 2, and the freezing fan 251 and the first fan 251 are turned on.

When the compressor 21 is turned on, the refrigerant is compressed by the compressor 21, cooled by the condenser 22, and then enters the first throttle 24 through the first valve outlet 232 of the control valve 23 for throttling and pressure reduction, and then enters the first evaporation The device 25 evaporates and absorbs heat, and the first fan 251 sends in the cooled air to cool the freezing compartment and/or refrigerating compartment. In this mode of use, the ice making compartment 14 and the temperature changing room are not cooled.

Fig. 6 is a schematic diagram of the refrigeration circuit of the refrigerator in the second use mode. Referring to FIG. 6, in the second use mode, cooling of the ice making compartment 14 and cooling of the freezing compartment 11 and/or refrigerating compartment 12 can be realized.

In this mode, the control valve 23 opens the second valve outlet 233, the refrigerant flows in the second refrigeration cycle of the refrigeration cycle system 2, while the second fan 152 and the first fan 251 are turned on.

When the compressor 21 is turned on, the refrigerant enters the second throttle 26 through the compressor 21, the condenser 22 and the second valve outlet 233 of the control valve 23 for throttling and pressure reduction, and then enters the second evaporator 27 to evaporate and absorb heat , The second fan 152 sends in the cooled air to cool the ice making compartment 14; then the refrigerant enters the first evaporator 25 to evaporate and absorb heat, and the first fan 251 sends the cooled air in to The freezing compartment 11 and/or the refrigerating compartment 12 are cooled. That is, the cooling of the ice making compartment 14 and the cooling of the freezing compartment 11 and/or the refrigerating compartment 12 are realized at the same time, and the changing room is not cooled in this mode of use.

Fig. 7 is a schematic diagram of the refrigeration circuit of the refrigerator in the third use mode. Participating in Figure 7, in the third use mode, independent cooling of the ice making chamber 14 can be achieved.

In this mode, the control valve 23 opens the second valve outlet 233, the refrigerant flows in the second refrigeration cycle of the refrigeration cycle system 2, while the second fan 152 is turned on, and the first fan 251 is turned off.

When the compressor 21 is turned on, the refrigerant enters the second throttle 26 through the compressor 21, the condenser 22 and the second valve outlet 233 of the control valve 23 for throttling and pressure reduction, and then enters the second evaporator 27 to evaporate and absorb heat , The second fan 152 sends in the cooled air to cool the ice making compartment 14; then the refrigerant enters the first evaporator 25 to evaporate and absorb heat. Since the first fan 251 is turned off, the air around the first evaporator 25 Without rapid flow, the surrounding temperature of the first evaporator 25 is low, so the phase change of the refrigerant when flowing through the first evaporator 25 is relatively low, and the refrigerant only undergoes a lower load in the first evaporator 25. It flows in and out, and does less work, which can be regarded as the refrigerant not cooling the freezer and/or refrigerating compartment. In this way, independent cooling of the ice making compartment 14 can be realized, and the freezing compartment, the refrigerating compartment and the temperature changing room are not cooled in this mode of use.

Fig. 8 is a schematic diagram of the refrigeration circuit of the refrigerator in the fourth use mode. Referring to FIG. 8, in the fourth usage mode, cooling of the variable temperature room, cooling of the ice making compartment 14, and cooling of the freezing compartment and/or refrigerating compartment can be realized.

In this mode, the control valve 23 opens the third valve outlet 234, the refrigerant flows in the third refrigeration cycle of the refrigeration cycle system 2, and the first fan 251, the second fan 152, and the third fan 291 are all turned on.

When the compressor 21 is turned on, the refrigerant enters the third throttle 28 through the compressor 21, the condenser 22, and the third valve outlet 234 of the control valve 23, and then enters the third evaporator 29, the third evaporator 29, and the third evaporator 28 after being throttled and reduced in pressure. The second evaporator 27 and the first evaporator 25 evaporate and absorb heat. The first fan 251 sends in the cooled air to cool the freezer and/or refrigerating compartment, and the second fan 152 sends the cooled air to The ice making compartment 14 cools, and the third fan 291 sends in the cooled air to cool the temperature changing room. That is, the cooling of the temperature changing room 13, the cooling of the ice compartment 14, and the cooling of the freezing compartment 11 and/or the refrigerating compartment 12 can be realized at the same time.

Fig. 9 is a schematic diagram of the refrigeration circuit of the refrigerator in the fifth use mode. Referring to FIG. 9, in the fifth use mode, cooling of the temperature-varying greenhouse and cooling of the freezing compartment 11 and/or refrigerating compartment 12 can be realized.

In this mode, the control valve 23 opens the third valve outlet 234, the refrigerant flows in the three refrigeration cycle circuits of the refrigeration cycle system 2, while the first fan 251 and the third fan 291 are turned on, and the second fan 152 is turned off.

When the compressor 21 is turned on, the refrigerant enters the third throttle 28 through the compressor 21, the condenser 22, and the third valve outlet 234 of the control valve 23, and then enters the third evaporator 29, the third evaporator 29, and the third evaporator 28 after being throttled and reduced in pressure. The evaporation in the second evaporator 27 and the first evaporator 25 absorbs heat. Since the second fan 152 is not turned on, the air around the second evaporator 27 does not flow quickly, and the refrigerant only flows in and out of the first evaporator 25 at a lower load, and does less work. It can be regarded as the ice making chamber has not been 14 is refrigerated, so the cooling of the temperature changing room 13 and the refrigeration of the freezing compartment 11 and/or the refrigerating compartment 12 can be realized, but the ice making compartment 14 is not refrigerated.

Fig. 10 is a schematic diagram of the refrigeration circuit of the refrigerator in the sixth use mode. Referring to Fig. 10, in the sixth use mode, cooling of the variable temperature greenhouse and the ice making chamber 14 can be realized.

In this mode, the control valve 23 opens the third valve outlet 234, and the refrigerant flows in the third refrigeration cycle of the refrigeration cycle system 2, while the second fan 152 and the third fan 291 are turned on, and the first fan 251 is turned off.

When the compressor 21 is turned on, the refrigerant enters the third throttle 28 through the compressor 21, the condenser 22, and the third valve outlet 234 of the control valve 23, and then enters the third evaporator 29, the third evaporator 29, and the third evaporator 28 after being throttled and reduced in pressure. The evaporation in the second evaporator 27 and the first evaporator 25 absorbs heat. Since the first fan 251 is not turned on, the air around the first evaporator 25 does not flow quickly, and the refrigerant only flows in and out of the first evaporator 25 at a lower load, and does less work, which can be regarded as not being applied to the freezer compartment. And/or the refrigerating compartment is refrigerated, so the refrigerating chamber and the ice making compartment 14 can be refrigerated, without refrigerating the freezing compartment and/or refrigerating compartment 12.

Fig. 11 is a schematic diagram of the refrigeration circuit of the refrigerator in the seventh use mode. Referring to Figure 11, in the seventh use mode, independent cooling of the variable temperature greenhouse can be achieved.

In this mode, the control valve 23 opens the third valve outlet 234, and the refrigerant flows in the third refrigeration cycle of the refrigeration cycle system 2, while the third fan 291 is turned on, and the first fan 251 and the second fan 152 are turned off.

When the compressor 21 is turned on, the refrigerant enters the third throttle 28 through the compressor 21, the condenser 22, and the third valve outlet 234 of the control valve 23, and then enters the third evaporator 29, the third evaporator 29, and the third evaporator 28 after being throttled and reduced in pressure. The evaporation in the second evaporator 27 and the first evaporator 25 absorbs heat. Since the second fan 152 and the first fan 251 are not turned on, the refrigerant in both the first evaporator 25 and the second evaporator 27 only performs low-load inflow and outflow work, and it does less work, which can be regarded as uncorrected. The freezer compartment and/or refrigerating compartment are refrigerated, and the ice compartment 14 is not refrigerated, so the independent refrigeration of the variable temperature chamber 13 can be realized without cooling the ice compartment 14 and the freezing compartment 11 and/or refrigeration Room 12 is refrigerated.

The advantage of the refrigeration cycle system 2 in the above refrigerator is that by controlling the control valve 23 to select different valve outlets, the refrigeration cycle system 2 can be formed into three refrigeration cycles to realize multiple refrigeration functions. In addition, by controlling whether the fans are running or not, combined with the selection of the refrigeration cycle, it is possible to control the refrigeration of the warming room, the refrigeration of the ice compartment 14 and the refrigeration of the freezer compartment and/or the refrigerating compartment separately, and at the same time. Take into account the refrigeration efficiency of the ice maker 15.

Furthermore, the refrigeration cycle system 2 can set different refrigeration priorities according to the refrigeration demand, and select the above-mentioned specific refrigeration cycle through the control valve 23 to work, so that the refrigerant will only flow in one refrigeration cycle, so there is no need Consider the problem of refrigerant distribution.

The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who thinks of changes or substitutions within the technical scope disclosed in the present disclosure shall cover Within the protection scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A refrigerator including:

A box having a first chamber and an ice-making chamber, and the ice-making chamber is arranged in the first chamber;

An ice maker provided in the ice making chamber, the ice maker including at least one set of ice making trays configured to hold water for making ice; and,

The refrigeration cycle system arranged in the box body includes:

compressor;

A condenser, the first end of the condenser is connected to the second end of the compressor;

A control valve, the valve inlet of the control valve is connected to the second end of the condenser;

A first evaporator, the first end of the first evaporator is connected to the first valve outlet of the control valve, and the second end is connected to the first end of the compressor; the first evaporator is configured to Provide cold capacity for the first chamber;

The second evaporator is arranged in the ice maker; the first end of the second evaporator is connected with the second valve outlet of the control valve, and the second end is connected with the first end of the first evaporator Connection; said

The second evaporator is arranged on at least one side of the at least one set of ice making trays, and is configured to provide cold energy for the at least one set of ice making trays.
The refrigerator according to claim 1, wherein the refrigeration cycle system further comprises:

A second fan, arranged in the ice maker and opposite to the second evaporator, is configured to send the air cooled by the second evaporator from the ice maker into the ice making chamber , In order to refrigerate the ice making chamber.
The refrigerator according to claim 2, wherein the ice maker further comprises:

Body, the second fan is arranged in the body;

An ice turning rod, the ice turning rod is rotatably connected to the body, and each group of ice making trays are arranged along the extending direction of the ice turning rod, and are fixedly connected to the ice turning rod;

At least one heater, each heater being arranged on a corresponding group of ice-making trays, is configured to heat the ice-making trays of the corresponding group to separate ice from the ice-making trays of the corresponding group.
The refrigerator according to claim 3, wherein a fourth ventilation channel is provided in the body, and the first port of the fourth ventilation channel is provided on a surface of the body close to the ice flipping rod, and The second port of the fourth ventilation channel is provided on the surface of the body exposed to the ice making chamber, and the fourth ventilation channel communicates with the ice making chamber through its second port; the second fan is provided In the fourth ventilation channel.
The refrigerator according to claim 3 or 4, wherein the ice maker includes two sets of ice making trays, and the two sets of ice making trays are arranged along the circumference of the ice turning bar.
The refrigerator according to claim 5, wherein the second evaporator is a refrigeration tube arranged on at least one side of the two sets of ice making trays, and the refrigeration tube is connected to the bottom wall of the two sets of ice making trays and / Or sidewall contact.
The refrigerator according to claim 5 or 6, wherein the second evaporator is a refrigeration tube arranged on one side of the two sets of ice trays, and the refrigeration tube includes a bent part and two non-bend parts , The two non-bending parts are connected by the bending part;

Compared with the two non-bending parts, the bending part is closer to the end surfaces of the two sets of ice making trays close to the body, and the two non-bending parts are both along the extension of the ice turning bar Direction extension.
The refrigerator according to any one of claims 3 to 7, wherein the ice maker further comprises an upper shell and a lower shell that are detachably connected to the body;

The upper shell may be covered on a first side of the at least one set of ice-making trays; the lower shell may be covered on a second side of the at least one set of ice-making trays opposite to the first side Upper, the upper casing and the lower casing form an outlet at each end away from the body;

The lower housing includes a slideway connected to the outlet, the slideway includes a first end close to the body and a second end far from the body; in a plane perpendicular to the plane where the slideway is located , The minimum distance from the first end of the slideway to the ice flipping bar is less than the minimum distance from the second end of the slideway to the ice flipping bar; the second end of the slideway and the exit connect.
The refrigerator according to any one of claims 1 to 8, wherein the refrigeration cycle system further comprises a first fan, and the first fan is arranged opposite to the first evaporator and is configured to The air cooled by an evaporator is sent into the first chamber to cool the first chamber.
The refrigerator according to claim 9, wherein the box body further has a second cavity, and the refrigerator further comprises:

A first ventilation channel, the first fan is arranged in the first ventilation channel;

The second ventilation channel is connected between the first ventilation channel and the first chamber, and the first fan is configured to pass the air cooled by the first evaporator through the first ventilation channel and The second ventilation channel is fed into the first chamber;

The first air door is arranged on the second ventilation passage and is configured to open or close the second ventilation passage;

The third ventilation channel is connected between the first ventilation channel and the second chamber, and the first fan is also configured to pass the air cooled by the first evaporator through the first ventilation channel And the third ventilation channel is fed into the second chamber; and,

The second air door is arranged on the third ventilation passage and is configured to open or close the third ventilation passage.
The refrigerator according to claim 10, wherein the first chamber is a refrigerating chamber, and the second chamber is a freezing chamber.
The refrigerator according to any one of claims 1 to 11, wherein the refrigeration cycle system further comprises:

A first pipeline, the first valve outlet of the control valve and the first evaporator are connected by the first pipeline;

The first throttle is arranged on the first pipeline and is configured to throttle and reduce the pressure of the refrigerant in the first pipeline;

A second pipeline, the second valve outlet of the control valve and the second evaporator are connected by the second pipeline; and,

The second throttle is arranged on the second pipeline and is configured to throttle and reduce the pressure of the refrigerant in the second pipeline.
The refrigerator according to any one of claims 1 to 12, wherein the box body further has a third chamber, and the refrigeration cycle system further comprises:

The third evaporator, the first end of the third evaporator is connected with the third valve outlet of the control valve, and the second end is connected with the first end of the second evaporator; the third evaporator is configured as Provide cold energy for the third chamber; and,

A third fan arranged opposite to the third evaporator is configured to send the air cooled by the third evaporator into the third chamber to cool the third chamber; The adjustable range of temperature in the three chambers is larger than the adjustable range of temperature in the first chamber.
The refrigerator according to claim 13, further comprising a fifth ventilation channel provided in the cabinet, one end of the fifth ventilation channel is connected to the variable temperature room; the third fan is provided in the fifth ventilation channel In the channel.
The refrigerator according to claim 13 or 14, wherein the refrigeration cycle system further comprises:

A third pipeline, the third valve outlet of the control valve and the third evaporator are connected by the third pipeline; and,

The third throttle is arranged on the third pipeline and is configured to throttle and reduce the pressure of the refrigerant in the third pipeline.
The refrigerator according to any one of claims 13 to 15, wherein the first chamber is a refrigerating chamber, and the third chamber is a temperature changing room.
The refrigerator according to any one of claims 1 to 16, wherein the control valve is a solenoid valve.
The refrigerator according to any one of claims 1 to 17, wherein the ice making chamber and the first chamber are isolated from each other.