CN222364229U - Refrigerating apparatus - Google Patents

Abstract

The utility model relates to a refrigeration device, which comprises a box body, a refrigeration chamber and a refrigeration system. The box body comprises an equipment chamber and a storage chamber. The equipment chamber is located above the storage chamber, and the effective volume of the storage chamber becomes larger, which is conducive to storing more items. The refrigeration chamber is arranged in the equipment chamber, and a communication channel is arranged between the refrigeration chamber and the storage chamber. The refrigeration system comprises a compressor, a first heat exchanger and a second heat exchanger which are connected in sequence through a refrigeration pipeline, and the second heat exchanger is arranged in the refrigeration chamber. During the defrosting process, the temperature in the refrigeration chamber rises, the high-temperature airflow naturally floats up, and the low-temperature airflow in the storage chamber naturally sinks, which can effectively reduce the heat exchange between the refrigeration chamber and the storage chamber, reduce the temperature increase of the storage chamber during the defrosting process, do not need to perform additional refrigeration operations, and are more energy-efficient.

Description

Refrigerating apparatus

Technical Field

The utility model belongs to the technical field of electrical equipment, and particularly relates to refrigeration equipment.

Background

The refrigerator is an indispensable refrigeration equipment in daily life, and the refrigerator generally includes box and door body, forms the storage chamber in the box and places the article that needs refrigeration to deposit, and the storage chamber then realizes the switch in order to make things convenient for the user to access article through the door body.

The refrigerator is through transferring inside heat to outside so that the incasement temperature reduces, and current forced air cooling refrigerator, its evaporimeter generally sets up in the equipment cavity, and the equipment cavity sets up the bottom at the refrigerator, and the temperature in the equipment cavity risees when evaporimeter and defrosting of water collector, through modes such as convection current, heat conduction, causes the temperature rebound of storage cavity easily, influences the refrigeration effect of storage cavity, and the article quality in the storage cavity also can receive the influence.

In order to avoid temperature rise of the storage chamber in the defrosting process, a double-refrigerating system is generally adopted in the prior art, and when one refrigerating circuit is positioned in the defrosting circuit, the other refrigerating circuit continuously refrigerates the storage chamber, so that the whole equipment is overlarge in size, high in manufacturing cost, high in energy consumption and poor in energy-saving effect.

Disclosure of Invention

The utility model aims to provide refrigeration equipment so as to solve the problems that in the prior art, convection and heat conduction between an equipment chamber and a storage chamber are strong, temperature in the equipment chamber rises in a defrosting process, so that the temperature in the storage chamber rises, the storage effect of the storage chamber is affected, and the equipment of a double refrigeration system is large in size, high in power consumption, poor in energy-saving effect and the like.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

The utility model proposes a refrigeration device comprising:

the box body comprises an equipment chamber and a storage chamber, wherein the equipment chamber is positioned above the storage chamber;

A refrigeration compartment disposed within the equipment chamber, at least one communication channel disposed between the refrigeration compartment and the storage chamber;

The refrigerating system comprises a compressor, a first heat exchanger and a second heat exchanger which are sequentially connected through a refrigerating pipeline, wherein the compressor and the first heat exchanger are installed in the equipment cavity and located on the outer side of the refrigerating room, the second heat exchanger is arranged in the refrigerating room, an air supply piece is arranged on the side of the second heat exchanger and used for conveying air flow passing through the second heat exchanger after heat exchange to the storage cavity through the communication channel.

In some embodiments of the present application, the second heat exchanger is fixed at the bottom of the refrigeration compartment through a support base, an air passing concave part is formed on the support base, and an air passing gap is formed between the bottom of the second heat exchanger and the air passing concave part.

In some embodiments of the present application, a first water receiving tray is further disposed on the air-passing concave portion, the first water receiving tray is located below the second heat exchanger, a second water receiving tray is further disposed in the equipment chamber, and the second water receiving tray is connected with the first water receiving tray through a drain pipe.

In some embodiments of the present application, first supporting surfaces are formed on two sides of the air-passing concave portion, the first water-receiving tray is obliquely arranged under the action of the first supporting surfaces, and the drain pipe is connected to the side of the lowest position of the first water-receiving tray.

In some embodiments of the present application, a through-air hole is formed at the bottom of the support base, and the through-air hole is communicated with the communication channel.

In some embodiments of the present application, the communication channel includes a first communication channel and a second communication channel, a first air guiding member is disposed at a top of the storage chamber, a second air guiding member is disposed at a rear wall of the storage chamber, a plurality of air outlet holes are formed on the first air guiding member and the second air guiding member in a dispersed manner, a first air guiding chamber is formed between the first air guiding member and the storage chamber, a second air guiding chamber is formed between the second air guiding member and the storage chamber, the first communication channel is communicated with the first air guiding chamber, and the second communication channel is communicated with the second air guiding chamber.

In some embodiments of the present application, the first air guiding member extends along a depth direction of the storage chamber, and includes a first air guiding section and a first air outlet section, where the first air guiding section is located between the first communication channel and the first air outlet section, and the air outlet hole is formed on the first air outlet section.

In some embodiments of the present application, the second air guiding member extends along the height direction of the storage chamber, and includes a second air guiding section and a second air outlet section, where the second air guiding section is located between the second communication channel and the second air outlet section, and the air outlet hole is located on the second air outlet section.

In some embodiments of the present application, an evaporation tube is disposed on a bottom plate of the second water receiving plate, and the evaporation tube is connected between an output end of the compressor and the first heat exchanger.

In some embodiments of the application, the refrigeration system further comprises a gas-liquid separator disposed between the compressor and the second heat exchanger, and a throttling device disposed between the first heat exchanger and the second heat exchanger.

Compared with the prior art, the utility model has the advantages and positive effects that:

The equipment chamber and the refrigeration compartment are arranged above the storage chamber, the effective volume of the storage chamber is increased, more objects can be stored, and because the air supply piece beside the second heat exchanger (evaporator) is in a shut-down state in the actual defrosting process, forced convection does not occur between the refrigeration compartment and the storage chamber, the temperature in the refrigeration compartment rises in the defrosting process, high-temperature air flows naturally float, low-temperature air flows in the storage chamber naturally sink, the heat exchange between the refrigeration compartment and the storage chamber can be effectively reduced, the temperature rise of the storage chamber in the defrosting process is reduced, additional refrigeration operation is not needed, and the refrigeration equipment is more energy-saving.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic view of an external structure of a refrigeration apparatus according to an embodiment;

fig. 2 is a schematic view of an internal structure of a refrigeration apparatus according to an embodiment;

FIG. 3 is a schematic diagram of communication channel locations according to an embodiment;

FIG. 4 is a split schematic of FIG. 3;

FIG. 5 is a schematic diagram of the apparatus chamber structure;

FIG. 6 is a schematic diagram of a refrigeration compartment according to an embodiment;

FIG. 7 is a schematic diagram of a refrigeration system structural connection according to an embodiment;

FIG. 8 is a split schematic of FIG. 7;

FIG. 9 is a schematic view of a support base structure;

FIG. 10 is a schematic diagram of a second heat exchanger installation;

FIG. 11 is a schematic view of a connection of a first water pan and a second water pan;

FIG. 12 is a schematic view of a disassembled configuration of a damper assembly;

FIG. 13 is a schematic cross-sectional view of an air valve assembly in an open state;

FIG. 14 is a schematic view of the structure of the damper assembly in a closed condition;

FIG. 15 is a schematic diagram of a refrigeration appliance without a damper assembly;

FIG. 16 is a schematic diagram of a refrigeration appliance in a closed condition of the damper assembly;

FIG. 17 is a schematic diagram of a refrigeration appliance in an open condition of the damper assembly;

FIG. 18 is a schematic diagram of a refrigeration system;

FIG. 19 is a schematic diagram of the operation of the refrigeration process;

FIG. 20 is a schematic diagram of the operation of the defrosting routine;

Reference numerals:

10. A refrigerating pipeline, a defrosting pipeline, 30, an electromagnetic valve, 40, a dew removing pipe, 50, a dry filter, 60, a throttling device and 70, a gas-liquid separator;

100. A case;

110. the device comprises a device chamber, a device bottom plate, a 112 and an upper communication port;

120. The storage chamber, 121, the top wall of the liner, 1211, the lower communication port, 122, the rear wall of the liner;

130. Communication channels 131, first communication channels 132, second communication channels 1321, connecting vertical parts;

140. 141, the first wind-guiding section, 142, the first air-out section;

150. the second air guide piece, 151, the second air guide section, 152, the second air outlet section;

160. A refrigeration compartment;

200. a compressor;

300. A first heat exchanger;

400. a second heat exchanger;

500. an air supply member;

600. Support base, 610, wind hole, 620, installation surface, 630, first support surface, 640, drainage concave part, 650, installation concave part;

700. air valve component 710, air valve part 720, air valve bracket 721, air valve transverse frame 722, air valve vertical frame 723, reinforcing rib 730, driving part;

800. a second water receiving tray; 810, defrosting part;

900. a first water receiving tray 910, an evaporating pipe.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, 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, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The refrigeration equipment generally comprises a box body, a door body and a refrigeration system, wherein at least a refrigeration compartment is formed in the box body, and the refrigeration compartment is opened and closed through the door body to meet the requirement of storing and taking articles.

Wherein the refrigeration system performs a refrigeration cycle of the refrigeration apparatus by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle comprises a series of processes involving compression, condensation, expansion and evaporation to effect refrigeration of the contents of the tank.

The low-temperature low-pressure refrigerant enters the compressor, the compressor compresses the refrigerant gas into a high-temperature high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state formed by condensation in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may cool the articles in the tank by using latent heat of vaporization of the refrigerant.

Referring to fig. 1 and 2, the present application proposes a refrigeration apparatus, which includes a case 100 and a refrigeration system, wherein the case 100 includes an apparatus chamber 110 and a storage chamber 120, and the apparatus chamber 110 is located above the storage chamber 120, which is beneficial to increasing the effective volume of the storage chamber 120 and storing more articles.

Referring to fig. 7 and 8, the equipment chamber 110 is used to install working components required for the operation of the refrigeration system, and includes a compressor 200, a first heat exchanger 300, a second heat exchanger 400, a gas-liquid separator 70, and a throttling device 60, which are connected through a refrigeration line 10.

The first heat exchanger 300 is specifically a condenser, and is connected to an output end of the compressor 200, the output end of the first heat exchanger 300 is connected to the second heat exchanger 400 after passing through the dry filter 50 and the throttling device 60, the second heat exchanger 400 is used as an evaporator in a cooling operation process, an output end of the second heat exchanger 400 is connected to the gas-liquid separator 70, and an output end of the gas-liquid separator 70 is connected to the compressor 200.

In the cooling process, the high-temperature and high-pressure refrigerant outputted from the compressor 200 is compressed by the condenser to form a liquid phase, and heat is released to the surrounding environment through the condensing process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state formed by condensation in the condenser into a low-pressure liquid-phase refrigerant.

The second heat exchanger 400 evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low temperature and low pressure state to the compressor 200.

The second heat exchanger 400 cools the articles in the tank 100 by using latent heat of vaporization of the refrigerant.

Referring to fig. 5, 6 and 15, a refrigerating compartment 160 is provided in the apparatus chamber 110, the refrigerating compartment 160 is provided independently of the apparatus chamber 110, and at least one communication passage 130 is provided between the refrigerating compartment 160 and the storage chamber 120.

The compressor 200 and the first heat exchanger 300 are installed inside the equipment chamber 110 and outside the refrigeration compartment 160.

The second heat exchanger 400 is disposed in the refrigeration compartment 160, and an air supply member 500 is disposed beside the second heat exchanger 400, and the air supply member 500 is used for conveying the air flow after heat exchange of the second heat exchanger 400 into the storage chamber 120 through the communication channel 130.

The storage chamber 120 is used for storing the articles to be refrigerated, and for convenience in taking and placing, a plurality of supporting shelves are arranged in the storage chamber 120 for placing the articles.

The low temperature air flow outputted from the refrigerating compartment 160 is outputted from the top wall and the rear wall of the storage chamber 120 into the storage chamber 120.

The storage chamber 120 is formed with a liner, the liner includes a liner top wall 121, a liner side wall and a liner rear wall 122, the bottom of the equipment chamber 110 is provided with an equipment bottom plate 111, and in order to reduce cold exchange between the storage chamber 120 and the equipment chamber 110, a heat insulation gap is formed between the liner top wall 121 and the equipment bottom plate 111.

The communication passage 130 is connected between the apparatus bottom plate 111 and the liner top wall 121.

The low-temperature air flow outputted from the refrigerating compartment 160 is transferred into the storage chamber 120 through the communication passage 130.

Specifically, an upper communication port 112 is provided on the apparatus bottom plate 111, a lower communication port 1211 is provided on the liner top wall 121, and the top and bottom of the communication passage 130 are connected to the upper communication port 112 and the lower communication port 1211, respectively.

A sealing member is provided between the communication passage 130 and the upper and lower communication ports 112 and 1211 to prevent leakage of the low-temperature air flow.

In some embodiments of the present application, the second heat exchanger 400 is fixed to the bottom of the refrigerating compartment 160 by a support base 600, and the support base 600 is fixed to the equipment floor 111.

Referring to fig. 3 and 4, in order to improve the efficiency of air flow delivery, the communication channels 130 are two, including the first communication channel 131 and the second communication channel 132, and the number of the upper communication port 112 and the lower communication port 1211 is adapted to the communication channels 130.

The first communication passage 131 communicates with the liner top wall 121, and the second communication passage 132 communicates with the liner rear wall 122.

The support base 600 has an air passing recess formed therein, and an air passing gap is formed between the bottom of the second heat exchanger 400 and the air passing recess, and the air passing gap communicates the first communication passage 131 and the second communication passage 132 with each other.

So that the low temperature air flow outputted from the air blowing member 500 is simultaneously transferred from the first communication passage 131 and the second communication passage 132 into the storage chamber 120.

The top of the storage chamber 120 is provided with a first air guide member 140, the rear wall of the storage chamber 120 is provided with a second air guide member 150, and a plurality of air outlet holes are formed in the first air guide member 140 and the second air guide member 150 in a dispersed manner.

Specifically, the first air guide 140 is fixed to the liner top wall 121, and the second air guide 150 is fixed to the liner rear wall 122.

A first air guide chamber is formed between the first air guide 140 and the storage chamber 120, a second air guide chamber is formed between the second air guide 150 and the storage chamber 120, the first communication channel 131 is communicated with the first air guide chamber, and the second communication channel 132 is communicated with the second air guide chamber.

The first air guide 140 extends along the depth direction of the storage chamber 120, and includes a first air guide section 141 and a first air outlet section 142, the first air guide section 141 is located between the first communication channel 131 and the first air outlet section 142, and the air outlet hole is formed in the first air outlet section 142.

The second air guide 150 extends along the height direction of the storage chamber 120, and includes a second air guide section 151 and a second air outlet section 152, where the second air guide section 151 is located between the second communication channel 132 and the second air outlet section 152, and the air outlet hole is located on the second air outlet section 152.

The second air guiding section 151 is an inclined structure extending toward the liner rear wall 122, and the second air guiding member 150 and the second communication channel 132 are connected to each other by a connecting standing portion 1321.

The first air guide 140 and the second air guide 150 are both sheet metal forming structures, and the first air guide 140 and the second air guide 150 are fixed in the storage chamber 120 by fastening screws or other fasteners.

The air outlet holes on the first air guiding member 140 and the second air guiding member 150 are arranged in an array, so as to realize uniform transportation of the low-temperature air flow into the storage chamber 120.

The device chamber 110 is disposed above the storage chamber 120, and the temperature in the storage chamber 120 is low due to the high temperature in the device chamber 110, so that the low temperature air flows downwards, which is beneficial to reducing heat exchange between the device chamber 110 and the storage chamber 120, and realizing efficient refrigeration.

Referring to fig. 9 and 10, in some embodiments of the present application, two mounting surfaces 620 are provided on the support base 600, the mounting surfaces 620 are respectively located at both ends of the wind passing recess, and the bottom of the second heat exchanger 400 is respectively supported on the two mounting surfaces 620.

In some embodiments of the present application, a first water receiving tray 900 is further disposed on the wind passing concave portion, and the first water receiving tray 900 is located below the second heat exchanger 400.

Specifically, the first supporting surface 630 is formed on two sides of the air-passing concave portion, the first water-receiving tray 900 is obliquely arranged under the action of the first supporting surface 630, and the drain pipe is connected to the lowest side of the first water-receiving tray 900.

In order to limit the drain pipe, a drain recess 640 extending downward is further provided in the support base 600, and the drain pipe is connected to the drain recess 640.

The support base 600 has a through-air hole 610 formed at the bottom thereof, and the through-air hole 610 communicates with the communication channel 130.

The equipment chamber 110 is also provided with a second water receiving tray 800, the second water receiving tray 800 is positioned outside the refrigeration compartment 160, and the second water receiving tray 800 is connected with a water receiving tray through a drain pipe.

The bottom tray of the second water tray 800 is provided with an evaporation tube 910, and the evaporation tube 910 is connected between the output end of the compressor 200 and the first heat exchanger 300.

In some embodiments of the present application, referring to fig. 10-12, in order to further reduce heat transfer between the equipment chamber 110 and the storage chamber 120, a damper assembly 700 is provided between the equipment chamber 110 and the storage chamber 120.

The air valve assembly 700 is used for controlling the switch of the communication channel 130, when the refrigeration system does not perform refrigeration operation, the air valve assembly 700 closes the communication channel 130, and the equipment chamber 110 is isolated from the storage chamber 120, so that the cold energy transfer can be further reduced, and the refrigeration and cold insulation effects are improved.

Specifically, in some embodiments of the present application, the damper assembly 700 is disposed over the through-air hole 610.

The damper assembly 700 includes a damper bracket 720, a damper portion 710, and a driving portion 730, and the damper bracket 720 is disposed on the through-air hole 610.

Specifically, the support base 600 is provided with a mounting recess 650, and the mounting recess 650 is formed above the wind passing hole 610.

The damper assembly 700 is disposed within the mounting recess 650.

The driving part 730 is fixed to the damper bracket 720, the damper part 710 is connected to an output end of the driving part 730, and the driving part 730 is used for controlling the damper part 710 to turn up and down along a target angle, and further controlling the opening and closing of the air passing hole 610.

The damper bracket 720 includes a damper cross frame 721 and a damper stand 722 disposed perpendicularly to each other, the damper cross frame 721 being fixed above the air passage hole 610, the damper cross frame 721 and the damper stand 722 being used to limit the opening and closing positions of the damper portion 710, respectively.

The damper cross frame 721 and the damper stand 722 are provided with reinforcing ribs 723 at intervals thereon for improving structural strength of the damper bracket 720.

Referring to fig. 13 and 16, in the closed state of the air passage 610, the driving portion 730 drives the air valve portion 710 to rotate until contacting the air valve cross frame 721 to close the air passage 610.

Referring to fig. 14 and 17, in the opened state of the air passage hole 610, the driving part 730 drives the air valve part 710 to rotate until contacting the air valve stand 722, and opens the air passage hole 610.

In some embodiments of the present application, the refrigeration system may implement a defrosting process in addition to the refrigerating process, the defrosting process being implemented through the defrosting pipe 20 and the defrosting part 810 connected to the defrosting pipe 20.

The switching between the defrosting process and the refrigerating process is realized by the following modes:

In some embodiments of the present application, a first switch part is disposed between the first heat exchanger 300 and the compressor 200, a second switch part is disposed on the defrosting pipe 20, the first switch part is in a connected state and the second switch part is in an disconnected state during a refrigerating process, and the first switch part is in an disconnected state and the second switch part is in a connected state during the defrosting process.

In other embodiments, the defrosting line 20 is connected to the refrigeration line 10 through a solenoid valve 30, the solenoid valve 30 is a three-way solenoid valve 30, and during the refrigeration process, the solenoid valve 30 opens the passage between the compressor 200 and the first heat exchanger 300, and during the defrosting process, the solenoid valve 30 opens the passage between the compressor 200 and the defrosting line 20.

Both ends of the defrosting pipe 20 are respectively connected with an output end of the compressor 200 and an input end of the second heat exchanger 400, and the defrosting part 810 is connected in the first water receiving tray 900.

In the defrosting process, the high-temperature and high-pressure refrigerant output by the compressor 200 is input into the defrosting pipeline 20, and the defrosting part 810 releases heat to defrost the first water receiving tray 900, and when defrosting, the hot air of the compressor 200 firstly transfers heat to the first water receiving tray 900 through a defrosting light path, so that the temperature of the first water receiving tray 900 quickly rises, and the smooth flow of defrosting water is ensured without freezing.

The refrigerant output from the defrosting part 810 passes through the inside of the second heat exchanger 400, and the high-temperature heat of the refrigerant can directly and efficiently melt off the ice and the frost attached to the outside of the refrigerant, so that the whole defrosting process has no electric devices, is safe and energy-saving, and has no potential safety hazard of electric appliances.

During defrosting, the air supply member 500 is turned off in order to prevent heat from being transferred into the storage chamber 120 due to the temperature rise in the refrigerating compartment 160.

That is, during the cooling process, the heat exchange (cooling) efficiency is improved by opening the air supply member 500 to force convection, and during defrosting, the heat exchange is reduced by closing the air supply member 500 to naturally convect;

In the embodiment without the air valve assembly 700, the convection between the equipment room and the storage room is only through the two communication channels 130, and when defrosting, the second heat exchanger 400 performs defrosting, the high-temperature gas naturally floats up in the equipment chamber 110, and the low-temperature air in the storage chamber 120 naturally sinks, so that heat exchange is reduced, and temperature change is avoided.

In embodiments where the damper assembly 700 is provided, the damper assembly 700 may also be closed during defrosting, thereby completely isolating the equipment compartment from the storage compartment and further reducing heat exchange.

Before the defrosting process, the refrigerating process is performed first, so that the temperature of the storage chamber 120 is reduced to the lowest point in the fluctuation range, and the temperature rise curve (range) of the equipment chamber 110 caused by high-temperature defrosting can be effectively moved down.

After defrosting is finished, the refrigerating flow is started, at this time, the air supply member 500 and the air valve assembly 700 are kept closed, and when the temperature of the refrigerating compartment 160 is lower than the temperature of the storage chamber 120, the air supply member 500 and the air valve assembly 700 are started, so that the temperature rise value of the storage chamber 120 caused by high-temperature defrosting is reduced.

Referring to fig. 18, in other embodiments of the present application, a door frame part is provided at a front side of the storage chamber 120, a dew removing pipe 40 is provided in the door frame part, the dew removing pipe 40 is connected between the compressor 200 and the first heat exchanger 300, and during the cooling process, the high-temperature and high-pressure refrigerant outputted from the compressor 200 releases part of heat through the dew removing pipe 40 before entering the first heat exchanger 300 to release the heat, and the dew removing pipe 40 can melt frost on the door frame part, thereby avoiding problems of freezing the door frame part, difficulty in opening the door body, and the like.

The following is a specific process of the refrigeration process and the defrosting process:

Referring to fig. 19, in the cooling process, an air supply member 500 and an air valve assembly 700 are opened, a passage between the compressor 200 and the first heat exchanger 300 is opened by the electromagnetic valve 30, a defrosting pipeline 20 between the compressor 200 and the defrosting unit 810 is cut off, the refrigerant output from the compressor 200 exchanges heat by the first heat exchanger 300 and then is conveyed to the second heat exchanger 400 in the cooling compartment 160 for heat exchange and cooling, and a low-temperature air flow formed after heat exchange with the refrigerant in the second heat exchanger 400 is conveyed to the storage chamber 120 through the communication channel 130 under the action of the air supply member 500, so that convection is forced to be formed with the storage chamber 120, heat exchange is performed, and efficient cooling is realized.

Referring to fig. 20, in the defrosting process, the air supply member 500 and the air valve assembly 700 are closed, the electromagnetic valve 30 cuts off the passage between the compressor 200 and the first heat exchanger 300, the defrosting pipeline 20 between the compressor 200 and the defrosting portion 810 is communicated, the high-temperature refrigerant discharged from the compressor 200 is firstly rapidly preheated and warmed up by the defrosting portion 810 to the first water receiving tray 900, and then enters the second heat exchanger 400 to defrost the surface of the evaporator, so that the defrosting water drops are ensured to be smoothly discharged in the water receiving tray without being frozen.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. A refrigeration appliance, comprising:

the box body comprises an equipment chamber and a storage chamber, wherein the equipment chamber is positioned above the storage chamber;

A refrigeration compartment disposed within the equipment chamber, at least one communication channel disposed between the refrigeration compartment and the storage chamber;

The refrigerating system comprises a compressor, a first heat exchanger and a second heat exchanger which are sequentially connected through a refrigerating pipeline, wherein the compressor and the first heat exchanger are installed in the equipment cavity and located on the outer side of the refrigerating room, the second heat exchanger is arranged in the refrigerating room, an air supply piece is arranged on the side of the second heat exchanger and used for conveying air flow passing through the second heat exchanger after heat exchange to the storage cavity through the communication channel.

2. A refrigeration device according to claim 1, wherein,

The second heat exchanger is fixed at the bottom of the refrigeration compartment through a support base, an air passing concave part is formed on the support base, and an air passing gap is formed between the bottom of the second heat exchanger and the air passing concave part.

3. A refrigeration device according to claim 2, wherein,

The air-passing concave part is also provided with a first water-receiving disc, the first water-receiving disc is positioned below the second heat exchanger, the equipment chamber is also internally provided with a second water-receiving disc, and the second water-receiving disc is connected with the first water-receiving disc through a drain pipe.

4. A refrigeration device according to claim 3, wherein,

The two sides of the air passing concave part are provided with first supporting surfaces, the first water receiving disc is obliquely arranged under the action of the first supporting surfaces, and the drain pipe is connected to one side of the lowest position of the first water receiving disc.

5. A refrigeration device according to claim 2, wherein,

The bottom of the support base is provided with a penetrating through-air hole, and the through-air hole is communicated with the communication channel.

6. A refrigeration device according to claim 1, wherein,

The communication channel comprises a first communication channel and a second communication channel, a first air guide piece is arranged at the top of the storage chamber, a second air guide piece is arranged on the rear wall of the storage chamber, a plurality of air outlet holes are formed in the first air guide piece and the second air guide piece in a dispersing mode, a first air guide cavity is formed between the first air guide piece and the storage chamber, a second air guide cavity is formed between the second air guide piece and the storage chamber, the first communication channel is communicated with the first air guide cavity, and the second communication channel is communicated with the second air guide cavity.

7. A refrigeration device according to claim 6, wherein,

The first air guide piece extends along the depth direction of the storage cavity and comprises a first air guide section and a first air outlet section, the first air guide section is located between the first communication channel and the first air outlet section, and the air outlet hole is formed in the first air outlet section.

8. A refrigeration device according to claim 6, wherein,

The second air guide piece extends along the height direction of the storage cavity and comprises a second air guide section and a second air outlet section, the second air guide section is located between the second communication channel and the second air outlet section, and the air outlet hole is located in the second air outlet section.

9. A refrigeration device according to claim 3, wherein,

The bottom plate of second water collector is equipped with the evaporating pipe, the evaporating pipe is connected between the output of compressor and first heat exchanger.

10. A refrigeration device according to claim 1, wherein,

The refrigeration system further comprises a gas-liquid separator and a throttling device, wherein the gas-liquid separator is arranged between the compressor and the second heat exchanger, and the throttling device is arranged between the first heat exchanger and the second heat exchanger.