Refrigeration equipment

Abstract

The utility model discloses refrigeration equipment, and belongs to the technical field of refrigeration equipment, and the refrigeration equipment comprises a box body, a box door, an evaporator, a condenser, a compressor, a dryer and a silencer; the compressor, the condenser and the evaporator jointly form a refrigerant circulation loop; the dryer is arranged in the refrigerant circulation loop and used for drying the refrigerant; a drying cavity is defined by the dryer; the silencer is located at the position where the liquid refrigerant is converted into the gas refrigerant. A silencing cavity is defined in the silencer and communicates with the drying cavity, and the silencing cavity and the drying cavity are arranged in the flowing direction of the refrigerant; the silencer is arranged in the dryer, the silencing cavity extends in the flowing direction of a refrigerant, a center line is defined by the silencing cavity in the extending direction of the silencing cavity, and the inner wall of the silencing cavity is arranged in the direction away from the center line in the extending direction of the silencing cavity; at least part of the liquid refrigerant becomes gaseous when flowing through the silencing cavity, and the gaseous refrigerant enters the drying cavity from the silencing cavity to be dried. According to the refrigeration equipment, the silencer can be arranged in the dryer, so that the overall structure of the refrigeration equipment is simplified, and the assembly efficiency of the refrigeration equipment is improved.

Description

Technical Field

[0001] This application belongs to the technical field of refrigeration equipment, and particularly relates to a refrigeration equipment. Background Art

[0002] The refrigeration principle of refrigeration equipment such as refrigerators and freezers is mainly based on the state change and thermal properties of the refrigerant. By the transformation of the refrigerant between the liquid state and the gaseous state, the absorption and release of heat are realized, thereby achieving the refrigeration effect. During the process that the liquid refrigerant absorbs heat in the evaporator and turns into gas, some sounds may be generated. When the evaporation amount of the liquid refrigerant is large, the generated sound is large, which is likely to startle the user and bring a bad experience to the user. Therefore, some refrigerators are provided with silencers at the outlet position of the evaporator to perform silencing treatment on the refrigerant.

[0003] Meanwhile, a refrigerator is usually also provided with a dryer for drying the refrigerant. However, in the prior art, the silencer and the dryer are usually independently arranged, and the silencer and the dryer are respectively located on the refrigerant flow path, which not only increases the occupied space of the overall structure, but also increases the complexity of the overall structure and reduces the assembly efficiency.

[0004] In addition, after the refrigerator refrigerates for a certain period of time, the evaporator is prone to frosting, which affects the heat exchange effect. Therefore, it is necessary to defrost the evaporator. In some refrigerators, the flow direction of the refrigerant is switched through a reversing valve, the condenser is changed into an evaporator, and the evaporator is changed into a condenser, so that the refrigerant flows reversely to defrost the evaporator by using the heat of the refrigerant. However, during the reverse flow of the refrigerant, a silencer is usually not provided at the position where the liquid refrigerant becomes gas, resulting in a large sound being easily generated when the refrigerator defrosts, reducing the user experience.

[0005] In view of this, this application is proposed. Utility Model Content

[0006] Aiming at the deficiencies in the related art, this application provides a refrigeration equipment, which simplifies the overall structure and facilitates arrangement by arranging the silencer in the dryer.

[0007] This application provides a refrigeration equipment, including:

[0008] A box body, which is defined to form an object placement cavity and an equipment cavity, and the object placement cavity and the equipment cavity are independently arranged; the box body is provided with an object placement cavity opening communicating with the object placement cavity;

[0009] A box door, which is arranged at the object placement cavity opening in an openable and closable manner; the box door is connected to the box body;

[0010] An evaporator, which is installed on the box body and is used for absorbing the heat in the object placement cavity;

[0011] A condenser, which is disposed in the equipment cavity and is used to release heat to the outside of the storage cavity;

[0012] A compressor, which is disposed in the equipment cavity. The compressor, the condenser and the evaporator together form a refrigerant circulation loop;

[0013] A dryer, which is disposed in the refrigerant circulation loop and is used to dry the refrigerant; a drying cavity is defined in the dryer;

[0014] A silencer, which is located at the position where the liquid refrigerant turns into the gaseous refrigerant; a silencing cavity is defined in the silencer. The silencing cavity is communicated with the drying cavity, and the silencing cavity and the drying cavity are arranged along the flowing direction of the refrigerant. The silencer is disposed inside the dryer. The silencing cavity extends along the flowing direction of the refrigerant. A center line is defined along the extending direction of the silencing cavity. The inner wall of the silencing cavity is arranged in a direction away from the center line along the extending direction of the silencing cavity;

[0015] At least part of the liquid refrigerant becomes gaseous when flowing through the silencing cavity, and the gaseous refrigerant enters the drying cavity from the silencing cavity for drying.

[0016] In this technical solution, by arranging a silencer at the position where the liquid refrigerant turns into the gaseous refrigerant, the silencer is used to reduce the sound generated during the process of the refrigerant changing from liquid to gas; by disposing the silencer inside the dryer, it is convenient to arrange the silencer and the dryer, simplify the overall structure of the refrigeration equipment, and improve the assembly efficiency; by arranging the inner wall of the silencing cavity in a direction away from the center line along the extending direction of the silencing cavity, the silencing cavity is in a conical shape, so that the amount of the liquid refrigerant flowing into the silencing cavity gradually increases, so that the liquid refrigerant gradually evaporates, and a large amount of liquid refrigerant is prevented from suddenly becoming gaseous and generating a large sound.

[0017] In some embodiments, the silencer is disposed in the drying cavity, and a desiccant is placed in the drying cavity, and the desiccant is located outside the silencer.

[0018] In this technical solution, by disposing the silencer in the drying cavity, the overall size of the silencer and the dryer can be reduced; by arranging the desiccant outside the silencer, the refrigerant can be dried after being silenced, and the silencing and drying efficiency of the refrigerant can be increased.

[0019] In some embodiments, the silencer is provided with a through portion for the refrigerant to enter and exit the silencing cavity. The through portion is disposed on the peripheral wall of the silencing cavity. The silencing cavity is communicated with the drying cavity through the through portion.

[0020] In this technical solution, by arranging the through portion, the refrigerant can flow between the drying cavity and the silencing cavity through the through portion; by disposing the through portion on the peripheral wall of the silencing cavity, the speed of the refrigerant flowing out of the silencing cavity is reduced, so that the speed of the refrigerant entering the drying cavity is reduced, and the drying effect of the dryer is increased.

[0021] In some of these embodiments, the silencing chamber includes a first end and a second end, the first end and the second end being oppositely arranged along the extending direction of the silencing chamber; the end face size of the first end is smaller than that of the second end; the first end is provided with an opening for the refrigerant to enter and exit the silencing chamber; the second end is a closed end.

[0022] In this technical solution, by designing the end face size of the first end to be smaller than that of the second end, the silencing chamber is arranged to gradually increase along its extending direction, so that the liquid refrigerant evaporates gradually in the silencing chamber; by designing the second end as a closed end, the refrigerant flows between the silencing chamber and the drying chamber through the through part provided on the peripheral wall, thereby reducing the flow rate of the refrigerant between the drying chamber and the silencing chamber and increasing the drying effect of the refrigerant.

[0023] In some of these embodiments, the dryer includes a third end and a fourth end, the third end and the fourth end being oppositely arranged along the extending direction of the silencing chamber; the third end corresponds to the first end, the first end passes through the drying chamber and is arranged outside the third end, the fourth end is provided with an opening for the refrigerant to enter and exit the drying chamber, and one of the first end and the fourth end is the refrigerant inlet and the other is the refrigerant outlet.

[0024] In this technical solution, by providing the third end on the dryer, the first end passes through the drying chamber and is arranged outside the third end, and the silencer is used to seal the third end to prevent the refrigerant from entering and exiting the drying chamber through the third end; by providing an opening for the refrigerant to enter and exit at the fourth end, the refrigerant flows into the drying chamber from the fourth end and flows out of the silencing chamber from the first end, or the refrigerant flows into the silencing chamber from the first end and flows out of the drying chamber from the fourth end, thereby realizing the flow of the refrigerant. This design not only facilitates the arrangement of the dryer and the silencer, but also makes the structures of the dryer and the silencer compact.

[0025] In some of these embodiments, a plane perpendicular to the flowing direction of the refrigerant is defined as the first plane, and the cross-sectional size of the silencing chamber in the first plane increases along the flowing direction of the refrigerant.

[0026] In this technical solution, by making the cross-sectional size of the silencing chamber in the first plane increase successively along the flowing direction of the refrigerant, the silencing chamber increases successively along the flowing direction of the refrigerant, so that the liquid refrigerant evaporates gradually in the silencing chamber, thereby reducing the sound generated during the evaporation process of the liquid refrigerant.

[0027] In some of these embodiments, the silencer is connected with a partition board, and the partition board is arranged in the silencing chamber.

[0028] In this technical solution, by arranging the partition board in the silencing chamber, the partition board contacts the gaseous refrigerant to further reduce the sound carried by the gaseous refrigerant.

[0029] In some of these embodiments, a plurality of partition plates are provided, and at least some of the partition plates are arranged along the installation direction of the silencer; at least some of the partition plates are arranged along the circumferential direction of the sound absorption cavity.

[0030] In this technical solution, by arranging some of the partition plates along the installation direction of the silencer, some of the partition plates are arranged in sequence on the flow path of the gaseous refrigerant, so that the partition plates are fully in contact with the refrigerant, thereby increasing the sound absorption effect of the partition plates on the refrigerant; by arranging some of the partition plates along the circumferential direction of the sound absorption cavity, the partition plates are fully in contact with the refrigerant, thereby increasing the sound absorption effect of the partition plates on the refrigerant.

[0031] In some of these embodiments, a reversing valve is further included. The reversing valve is arranged in the refrigerant circulation loop and is used to switch the flow direction of the refrigerant; a dryer is arranged between the evaporator and the condenser; when the refrigerant flows from the condenser to the evaporator, the refrigerant flows through the drying cavity for drying treatment and then flows through the sound absorption cavity for transition and then flows to the evaporator; when the refrigerant flows from the evaporator to the condenser, the refrigerant flows through the silencer for sound absorption treatment and then flows into the drying cavity for drying treatment and finally flows to the condenser.

[0032] In this technical solution, by arranging a reversing valve in the refrigerant circulation loop, the flow path of the refrigerant can be changed. Under normal circumstances, the refrigerant flows from the condenser to the evaporator, and the evaporator cools the storage cavity; in special circumstances, when the refrigerant flows from the evaporator to the condenser, the evaporator is defrosted; when the flow direction of the refrigerant changes, the order in which the refrigerant flows through the drying cavity and the sound absorption cavity, as well as the flow direction of the refrigerant in the drying cavity and the flow direction in the sound absorption cavity, will all change. Among them, no matter how the refrigerant flows, the drying cavity plays a drying role on the refrigerant, but when the refrigerant flows from the condenser to the evaporator, the sound absorption cavity does not play a sound absorption role but plays an intermediate transition role.

[0033] In addition, this application also provides a refrigeration device, including:

[0034] A box body, which defines a storage cavity and a device cavity, and the storage cavity and the device cavity are independently arranged; the box body is provided with a storage cavity opening communicated with the storage cavity;

[0035] A box door, which is arranged at the storage cavity opening in an openable and closable manner; the box door is connected to the box body;

[0036] A first heat exchanger, which is installed on the box body and is used to absorb the heat in the storage cavity;

[0037] A second heat exchanger, which is arranged in the device cavity and is used to release heat to the outside of the storage cavity;

[0038] A compressor, which is arranged in the device cavity, and the compressor, the second heat exchanger and the first heat exchanger jointly form a refrigerant circulation loop;

[0039] A reversing valve is provided in the refrigerant circulation circuit for switching the flow direction of the refrigerant.

[0040] A silencer is provided in the refrigerant circulation circuit. The silencer is located between the first heat exchanger and the second heat exchanger. A sound-absorbing cavity is defined in the silencer. The sound-absorbing cavity extends along the flow direction of the refrigerant. A center line is defined along the extension direction of the sound-absorbing cavity. The inner wall of the sound-absorbing cavity is arranged away from the center line along the extension direction of the sound-absorbing cavity.

[0041] When the refrigerant flows from the second heat exchanger to the first heat exchanger, the refrigerant flows through the sound-absorbing cavity for sound absorption treatment and then flows into the second heat exchanger.

[0042] In this technical solution, a silencer is provided between the first heat exchanger and the second heat exchanger. When the refrigerant flows from the second heat exchanger to the first heat exchanger, the silencer is used to reduce the sound generated during the process of the refrigerant changing from liquid to gas. By arranging the inner wall of the sound-absorbing cavity away from the center line along the extension direction of the sound-absorbing cavity, the sound-absorbing cavity is conical, so that the amount of liquid refrigerant flowing into the sound-absorbing cavity gradually increases, so that the liquid refrigerant gradually evaporates, avoiding a large amount of liquid refrigerant suddenly changing into gas and generating a large sound.

[0043] In the above embodiment, a refrigeration device reduces the sound generated during the process of the refrigerant changing from liquid to gas by providing a silencer at the position where the liquid refrigerant changes to gaseous refrigerant. By arranging the inner wall of the sound-absorbing cavity away from the center line along the extension direction of the sound-absorbing cavity, the sound-absorbing cavity is conical, so that the amount of liquid refrigerant flowing into the sound-absorbing cavity gradually increases, so that the liquid refrigerant gradually evaporates, avoiding a large amount of liquid refrigerant suddenly changing into gas and generating a large sound. By arranging the silencer in the dryer, it is convenient to arrange the silencer and the dryer, simplifies the overall structure of the refrigeration device, and improves the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic structural diagram of the refrigeration device when the refrigeration device is a refrigerator in an embodiment of the refrigeration device of the present application;

[0045] Figure 2 It is a schematic structural diagram of the refrigeration device when the refrigeration device is a display cabinet in an embodiment of the refrigeration device of the present application;

[0046] Figure 3 It is a schematic structural diagram of the refrigeration device when the refrigeration device is a horizontal freezer in an embodiment of the refrigeration device of the present application;

[0047] Figure 4 It is the flow path of the refrigerant in an embodiment of the refrigeration device of the present application;

[0048] Figure 5This is the refrigerant flow path of the refrigeration equipment in the refrigeration mode in an embodiment of the present application;

[0049] Figure 6 This is the refrigerant flow path of the refrigeration equipment in the defrosting mode in an embodiment of the present application;

[0050] Figure 7 This is the schematic structural diagram of the silencer disposed inside the dryer in an embodiment of the refrigeration equipment of the present application;

[0051] Figure 8 This is the schematic diagram of the position of the dryer in the refrigerant circulation loop in an embodiment of the refrigeration equipment of the present application;

[0052] Figure 9 This is the schematic structural diagram of the silencer in an embodiment of the refrigeration equipment of the present application;

[0053] Figure 10 This is the schematic diagram of the center line of the silencer in an embodiment of the refrigeration equipment of the present application;

[0054] Figure 11 This is the schematic diagram of the first plane in an embodiment of the refrigeration equipment of the present application;

[0055] Figure 12 This is the refrigerant flow path when the refrigerant flows through the silencer and the dryer in the refrigeration mode of the refrigeration equipment in an embodiment of the present application;

[0056] Figure 13 This is the refrigerant flow path when the refrigerant flows through the silencer and the dryer in the defrosting mode of the refrigeration equipment in an embodiment of the present application.

[0057] In the figure,

[0058] 100, box body; 200, box door; 300, dryer; 400, silencer; 500, partition; 600, second heat exchanger; 700, first heat exchanger;

[0059] 101, refrigerating chamber; 102, freezing chamber;

[0060] 401, silencing cavity; 402, center line; 403, first plane;

[0061] 410, first end; 420, second end; 430, passing part. Detailed implementation manners

[0062] To make the purpose and implementation manners of the present application clearer, the following will clearly and completely describe the exemplary implementation manners of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0063] It should be noted that the brief description of the terms in this application is only for the convenience of understanding the following described embodiments, rather than intending to limit the embodiments of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0064] In this application, terms such as "first", "second", "third", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar or like objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that such terms can be interchanged under appropriate circumstances.

[0065] The terms "comprise" and "have" and any variations thereof are intended to cover but not be exclusive of inclusion. For example, a product or device that comprises a series of components does not necessarily have to be limited to all the components clearly listed, but may include other components that are not clearly listed or are inherent to these products or devices.

[0066] The refrigeration equipment provided by the embodiments of this application can have various implementation forms, such as Figure 1 As shown, the refrigeration equipment can be a refrigerator. As Figure 2 As shown, the refrigeration equipment can be a display cabinet with freezing or refrigerating functions. As Figure 3 As shown, the refrigeration equipment can be a horizontal freezer. The refrigeration equipment can also be a wine cabinet, etc.

[0067] As Figures 1-3 As shown, the refrigeration equipment includes a box body 100, and the box body 100 is defined to form a storage cavity for placing items.

[0068] As Figure 1 As shown, the storage cavity can be a freezer 102 or a refrigerator 101. It should be noted that the temperature in the freezer 102 is usually lower than that in the refrigerator 101, the temperature in the freezer 102 is usually lower than zero degree, and the temperature in the refrigerator 101 is usually higher than zero degree.

[0069] In some embodiments, the storage cavity can be set to be multiple, at least one storage cavity can be a freezer 102, at least one storage cavity can be a refrigerator 101, or multiple storage cavities can all be freezers 102 or multiple storage cavities can all be refrigerators 101.

[0070] The box body 100 is provided with a storage cavity opening, and the storage cavity opening is communicated with the storage cavity. Items are placed in the storage cavity through the storage cavity opening, or items are taken out of the storage cavity through the storage cavity opening.

[0071] As Figures 1-3As shown, the refrigeration device includes a door 200 which is arranged at the opening of the storage cavity in an openable and closable manner for opening or closing the storage cavity; the door 200 is connected to the box body 100.

[0072] The refrigeration device includes a refrigeration component which is used to refrigerate the storage cavity. Refrigerant flows in the refrigeration component, and the refrigerant flows in the refrigeration component and undergoes changes between liquid and gas states. During the process of the change between liquid and gas states of the refrigerant, heat is absorbed and released to achieve refrigeration in the storage cavity.

[0073] The box body 100 is provided with an equipment cavity which is independently arranged from the storage cavity; the equipment cavity is used to place at least part of the refrigeration component.

[0074] The refrigeration component includes a compressor which is arranged in the equipment cavity. The compressor is used to compress the refrigerant gas into a high-temperature and high-pressure state and discharge the compressed refrigerant gas.

[0075] The refrigeration component includes a condenser which is used to release heat; the high-temperature and high-pressure gaseous refrigerant releases heat in the condenser and condenses into high-pressure liquid.

[0076] The refrigeration component includes an expansion valve. The high-pressure liquid refrigerant undergoes throttling through the expansion valve, and the pressure and temperature of the refrigerant drop sharply, turning into a low-temperature and low-pressure mist (fine droplets) or a gas-liquid mixture state.

[0077] The refrigeration component includes an evaporator which is used to absorb heat; the low-temperature and low-pressure refrigerant rapidly evaporates into a gas state in the evaporator and absorbs the heat of the surrounding environment.

[0078] As Figure 4 shown, the compressor, the condenser and the evaporator jointly define a refrigerant circulation loop. The refrigerant flows in the refrigerant circulation loop, completing the cyclic change from gas state to liquid state and then back to gas state. Through this process of absorbing and releasing heat, the refrigeration effect is achieved.

[0079] Refrigeration devices such as refrigerators usually mainly refrigerate the storage cavity. However, after the refrigeration device works for a long time, the evaporator is prone to frosting. In some embodiments of the present application, by reversing the flow of the refrigerant, the evaporator which was originally used to refrigerate the storage cavity becomes a condenser, thereby defrosting.

[0080] For the convenience of description, the refrigeration of the storage cavity by the refrigeration device is called the refrigeration mode, and the defrosting of the evaporator in the refrigeration mode by the refrigeration device is called the defrosting mode.

[0081] Since both the evaporator and the condenser are heat exchangers, they are reversed in the refrigeration mode and the defrosting mode. That is, the evaporator in the refrigeration mode is the condenser in the defrosting mode, and the condenser in the refrigeration mode is the evaporator in the defrosting mode.

[0082] For the convenience of description, in this embodiment, the heat exchanger used to refrigerate the storage cavity is referred to as the first heat exchanger 700, and the condenser in the refrigeration mode is referred to as the second heat exchanger 600. Among them, the first heat exchanger 700 is installed in the box body 100 and is used to absorb the heat in the storage cavity; the second heat exchanger 600 is arranged in the equipment cavity and is used to release heat to the outside of the storage cavity.

[0083] In some embodiments, the first heat exchanger 700 is arranged on the outer wall of the storage cavity.

[0084] The refrigeration assembly includes a reversing valve. The reversing valve is arranged in the refrigerant circulation loop and is used to switch the refrigerant flow direction.

[0085] As Figure 5 shown, when the refrigeration device is in the refrigeration mode, the first heat exchanger 700 is the evaporator, the second heat exchanger 600 is the condenser, the refrigerant flows from the compressor into the second heat exchanger 600 to release heat, then flows into the first heat exchanger 700 to absorb heat, and finally flows back into the compressor.

[0086] As Figure 6 shown, when the refrigeration device is in the defrosting mode, the second heat exchanger 600 is the evaporator, the first heat exchanger 700 is the condenser, the refrigerant flows from the compressor into the first heat exchanger 700 to release heat, defrost the first heat exchanger 700, then flows into the second heat exchanger 600 to absorb heat, and finally flows back into the compressor.

[0087] For the convenience of description, in this embodiment, the flow path of the refrigerant is simplified. The flow path of the refrigerant in the refrigeration mode is simplified to flow from the second heat exchanger 600 to the first heat exchanger 700, and the flow path of the refrigerant in the defrosting mode is simplified to flow from the first heat exchanger 700 to the second heat exchanger 600.

[0088] The refrigeration device includes a dryer 300. The dryer 300 is arranged in the refrigerant circulation loop and is used to dry the refrigerant.

[0089] As Figure 7 shown, the dryer 300 is defined to form a drying cavity, and a desiccant is placed in the drying cavity. The desiccant is used to absorb the moisture in the refrigerant.

[0090] The dryer 300 includes a first port. The first port is respectively communicated with the drying cavity and the refrigerant circulation loop. The refrigerant in the refrigerant circulation loop enters and exits the drying cavity through the first port.

[0091] The dryer 300 includes a second port that is respectively in communication with the drying chamber and the refrigerant circulation loop, and the refrigerant in the drying chamber enters and exits the drying chamber through the second port.

[0092] In some embodiments of the present application, as Figure 8 shown, the dryer 300 is disposed between the first heat exchanger 700 and the second heat exchanger 600. The first port is in communication with the second heat exchanger 600, and the second port is in communication with the first heat exchanger 700.

[0093] When the refrigeration device is in the refrigeration mode, the refrigerant flows from the first heat exchanger 700 to the second heat exchanger 600. The refrigerant flowing out of the first heat exchanger 700 enters the drying chamber through the second port, is dried by the desiccant in the drying chamber, and then flows into the second heat exchanger 600 through the first port, so that the desiccant dries the refrigerant leaving the first heat exchanger 700 and flowing into the second heat exchanger 600.

[0094] When the refrigeration device is in the defrosting mode, the refrigerant flows from the second heat exchanger 600 to the first heat exchanger 700. The refrigerant flowing out of the second heat exchanger 600 enters the drying chamber through the first port, is dried by the desiccant in the drying chamber, and then flows into the first heat exchanger 700 through the second port, so that the dryer 300 dries the refrigerant leaving the second heat exchanger 600 and flowing into the first heat exchanger 700.

[0095] During the flow of the refrigerant, there will be a change between liquid and gas states. When the liquid refrigerant changes to the gaseous refrigerant, it is easy to generate sound. In the present application, in order to reduce the sound generated during the process of the liquid refrigerant changing to the gaseous refrigerant, a silencer 400 is provided at the position where the liquid refrigerant in the refrigerant circulation loop changes to the gaseous refrigerant, so as to reduce the noise generated during the change process of the liquid refrigerant to the gaseous refrigerant.

[0096] As Figure 9 shown, the silencer 400 is defined to form a sound-absorbing cavity 401, and at least part of the liquid refrigerant becomes gaseous in the sound-absorbing cavity 401.

[0097] The silencer 400 includes a third port that is respectively in communication with the sound-absorbing cavity 401 and the refrigerant circulation loop, so that the liquid refrigerant in the refrigerant circulation loop enters the sound-absorbing cavity 401 through the third port.

[0098] The silencer 400 includes a fourth port that is respectively in communication with the sound-absorbing cavity 401 and the refrigerant circulation loop, so that the refrigerant in the sound-absorbing cavity 401 leaves the sound-absorbing cavity 401 through the fourth port and returns to the refrigerant circulation loop.

[0099] The silencer 400 is provided with a through portion 430 for the refrigerant to enter and exit the sound-absorbing cavity 401. It should be noted that the through portion 430 is the fourth port.

[0100] AsFigure 10 As shown, the sound - silencing cavity 401 extends along the flow direction of the refrigerant. The sound - silencing cavity 401 defines a center line 402 along its extension direction. The inner wall of the sound - silencing cavity 401 is arranged in a direction away from the center line 402 along the extension direction of the sound - silencing cavity 401, so that the sound - silencing cavity 401 is generally in a conical structure. Thus, the liquid refrigerant undergoes a gradual evaporation in the sound - silencing cavity 401, and the evaporation amount of the liquid refrigerant gradually increases, avoiding a large amount of gaseous refrigerant suddenly increasing and causing a large sound during the transformation of the liquid refrigerant to the gaseous refrigerant.

[0101] As Figure 11 shown, a plane perpendicular to the flow direction of the refrigerant is defined as the first plane 403. The cross - sectional dimension of the sound - silencing cavity 401 in the first plane 403 gradually increases along the flow direction of the refrigerant, so that the sound - silencing cavity 401 is generally in a conical structure. Thus, the liquid refrigerant undergoes a gradual evaporation in the sound - silencing cavity 401, and the evaporation amount of the liquid refrigerant gradually increases, avoiding a large amount of gaseous refrigerant suddenly increasing and causing a large sound during the transformation of the liquid refrigerant to the gaseous refrigerant.

[0102] As Figures 9-11 shown, the sound - silencing cavity 401 includes a first end 410. The first end 410 is arranged in the extension direction of the sound - silencing cavity 401, and the third port is opened at the first end 410.

[0103] The sound - silencing cavity 401 includes a second end 420. The second end 420 is arranged opposite to the first end 410 along the extension direction of the sound - silencing cavity 401. The end - face dimension of the first end 410 is smaller than that of the second end 420, so that the sound - silencing cavity 401 is generally in a conical structure. Thus, the liquid refrigerant undergoes a gradual evaporation in the sound - silencing cavity 401, and the evaporation amount of the liquid refrigerant gradually increases, avoiding a large amount of gaseous refrigerant suddenly increasing and causing a large sound during the transformation of the liquid refrigerant to the gaseous refrigerant.

[0104] In some embodiments, the second end 420 is a closed end, and the through - part 430 is arranged on the peripheral wall of the sound - silencing cavity 401, so that the refrigerant circulates between the sound - silencing cavity 401 and the drying cavity through the through - part 430. The through - part 430 is arranged in multiple numbers, and the multiple through - parts 430 are distributed on the peripheral wall of the sound - silencing cavity 401.

[0105] In some embodiments, the through - part 430 is a through - hole arranged on the peripheral wall of the sound - silencing cavity 401, so that the refrigerant circulates between the sound - silencing cavity 401 and the drying cavity through the through - hole.

[0106] The dryer 300 includes a third end, and the third end is arranged corresponding to the first end 410, and the first end 410 is arranged from the third end to the drying chamber. It should be noted that in the existing dryer 300, the first port is arranged at the third end. In the present application, by making the first end 410 pass through the drying chamber from the third end, the third end is sealed by the muffler 400 to prevent the refrigerant from entering and exiting the drying chamber from the third end.

[0107] The dryer 300 includes a fourth end, and the third end and the fourth end are arranged opposite to each other along the extension direction of the silencer chamber 401; the fourth end is provided with a second port, and one of the first end 410 and the fourth end is a refrigerant inlet and the other is a refrigerant outlet, so that the refrigerant flows into the drying chamber from the fourth end and flows out of the silencer chamber 401 from the first end 410, or the refrigerant flows into the silencer chamber 401 from the first end 410 and flows out of the drying chamber from the fourth end, thereby realizing the flow of the refrigerant. This design is not only convenient for arranging the dryer 300 and the silencer 400, but also the structures of the dryer 300 and the silencer 400 are compact.

[0108] like Figure 9 As shown, the silencer 400 is connected to a partition 500, and the partition 500 is arranged in the silencer chamber 401. The existence of the partition 500 increases the complexity of the propagation path of the sound wave in the silencer chamber 401. The sound wave continuously collides and reflects with the partition 500 during the propagation process. Part of the energy is converted into other forms of energy such as heat energy during the collision process, and then dissipated, reducing the propagation energy of the sound wave, and further reducing the sound generated in the process of converting the liquid refrigerant into the gaseous refrigerant.

[0109] The partition 500 is arranged on the inner wall of the muffler chamber 401. There are multiple partitions 500, and at least some of the partitions 500 are arranged along the setting direction of the muffler 400, so that the partitions 500 can fully contact the sound waves during the propagation of the sound waves.

[0110] At least part of the baffles 500 are arranged along the circumference of the muffler chamber 401 so that the baffles 500 can fully contact with the sound waves.

[0111] It should be noted that the partition 500 is disposed on the inner wall of the muffler chamber 401 so as to be staggered from the through portion 430 , so as to prevent the partition 500 from blocking the through portion 430 and affecting the flow of the refrigerant.

[0112] The sound - silencing principle of the silencer 400 is as follows: When the liquid refrigerant enters the sound - silencing cavity 401 from the third port, since the sound - silencing cavity 401 gradually increases along the refrigerant flow direction, the amount of liquid refrigerant entering the sound - silencing cavity 401 gradually increases. The liquid refrigerant undergoes a gradual evaporation, gradually transforming into gaseous refrigerant. The pressure in the sound - silencing cavity 401 gradually increases, avoiding a large sound caused by the instantaneous transformation of liquid refrigerant into gaseous refrigerant. And when the gaseous refrigerant flows in the sound - silencing cavity 401, it also contacts the partition 500, reducing the energy of the sound wave and further reducing the sound in the sound - silencing cavity 401.

[0113] In the refrigeration mode and defrosting mode of the refrigeration device, the position where the liquid refrigerant transforms into gaseous refrigerant is not exactly the same, that is, in the refrigeration mode and defrosting mode of the refrigeration device, the installation position of the silencer 400 is different.

[0114] In some embodiments of the present application, when the positions where the liquid refrigerant transforms into gaseous refrigerant are different in the refrigeration mode and defrosting mode of the refrigeration device, silencers 400 are respectively arranged at the two positions where the liquid refrigerant transforms into gaseous refrigerant, so that no large sound is generated when the refrigeration device operates in the refrigeration mode or defrosting mode.

[0115] Considering that setting a dryer 300 in the refrigerant circulation loop can also meet the drying requirements of the refrigerant, and the refrigeration mode is the common working mode of the refrigeration device. Therefore, in some other embodiments of the present application, a silencer 400 is arranged at the position where the liquid refrigerant transforms into gaseous refrigerant in the refrigeration mode, and a silencer 400 and a dryer 300 are arranged at the position where the liquid refrigerant transforms into gaseous refrigerant in the defrosting mode, so as to simplify the overall structure and facilitate the layout.

[0116] In some other embodiments of the present application, a silencer 400 can also be arranged at the position where the liquid refrigerant transforms into gaseous refrigerant in the defrosting mode, and a silencer 400 and a dryer 300 are arranged at the position where the liquid refrigerant transforms into gaseous refrigerant in the refrigeration mode, so as to simplify the overall structure and facilitate the layout.

[0117] In the present application, the silencer 400 is arranged in the dryer 300 to simplify the overall structure of the refrigeration device and improve the assembly efficiency of the refrigeration device.

[0118] Specifically, as Figure 7 shown, the silencer 400 is arranged inside the dryer 300, the sound - silencing cavity 401 is communicated with the drying cavity, and the sound - silencing cavity 401 and the drying cavity are arranged along the refrigerant flow direction, so that the refrigerant flows into the drying cavity for drying treatment after being subjected to sound - silencing treatment by the silencer 400.

[0119] In some embodiments of the present application, the silencer 400 is disposed in the drying chamber, and the desiccant is located outside the silencer 400; the silencing chamber 401 communicates with the drying chamber through the through portion 430, and the first port is disposed corresponding to the third port.

[0120] Since the flow direction of the refrigerant is opposite in the refrigeration mode and the defrosting mode of the refrigeration device, therefore, the directions of the refrigerant entering and leaving the dryer 300 and the silencer 400 in the refrigeration mode and the defrosting mode are also opposite, and the order of the refrigerant entering the drying chamber and the silencing chamber 401 is also opposite.

[0121] That is, in the refrigeration mode, the refrigerant first flows through the drying chamber and then through the silencing chamber 401. Specifically, the refrigerant enters the drying chamber from the second port, enters the silencing chamber 401 through the through portion 430, and then leaves the silencing chamber 401 from the third port.

[0122] In the defrosting mode, the refrigerant first flows through the silencing chamber 401 and then through the drying chamber. Specifically, the refrigerant enters the silencing chamber 401 from the third port and then enters the drying chamber through the through portion 430, and then leaves the drying chamber from the second port.

[0123] In some embodiments, the pipeline connected to the second heat exchanger 600 extends into the silencing chamber 401 from the third port to prevent the refrigerant from overflowing from the third port of the silencing chamber 401.

[0124] It should be noted that the through portions 430 are distributed on the peripheral wall of the silencing chamber 401, which can reduce the rate of the refrigerant entering and leaving the silencing chamber 401 through the through portions 430, so that the refrigerant can fully contact the desiccant, thereby increasing the drying effect of the refrigerant.

[0125] Taking the example of setting the silencer 400 and the dryer 300 at the position where the liquid refrigerant changes to the gaseous refrigerant in the defrosting mode and disposing the silencer 400 in the dryer 300, the working principle of the above refrigeration device will be introduced in detail below.

[0126] As Figure 10 shown, when the refrigeration device defrosts, the refrigerant flows from the second heat exchanger 600 to the first heat exchanger 700, at least part of the liquid refrigerant enters the silencing chamber 401, and changes to the gaseous refrigerant in the silencing chamber 401. The amount of the liquid refrigerant entering the silencing chamber 401 gradually increases, and the liquid refrigerant undergoes a gradual evaporation, and the liquid refrigerant gradually changes to the gaseous refrigerant. When the gaseous refrigerant flows in the silencing chamber 401, it will also contact the partition 500. After being silenced by the silencing chamber 401, the gaseous refrigerant enters the drying chamber through the through portion 430, and the gaseous refrigerant in the drying chamber contacts the desiccant for drying treatment and then flows into the second heat exchanger 600 from the second port.

[0127] As Figure 11As shown, when the refrigeration equipment is refrigerating, the refrigerant flows from the first heat exchanger 700 to the second heat exchanger 600. The refrigerant flows into the drying chamber from the second port, is dried by the desiccant, and then flows into the silencing chamber 401 through the through part 430, and then flows from the third port to the first heat exchanger 700.

[0128] It should be noted that in this embodiment, when the refrigerant flows from the first heat exchanger 700 to the second heat exchanger 600, the refrigerant flowing into the drying chamber and the silencing chamber 401 is usually gaseous, and the refrigerant usually does not need to be silenced. At this time, the silencing chamber 401 can be regarded as a transition chamber on the refrigerant flow path.

[0129] When the refrigerant flows from the second heat exchanger 600 to the first heat exchanger 700, since the second heat exchanger 600 is an evaporator, at least part of the refrigerant flowing out of the second heat exchanger 600 is liquid. The liquid refrigerant entering the silencing chamber 401 from the second heat exchanger 600 is easily evaporated into gaseous refrigerant. The change of the refrigerant from liquid to gas is likely to generate sound. Therefore, silencing treatment is required.

[0130] The above refrigeration equipment simplifies the overall structure and is convenient for layout by setting a silencer 400 and a dryer 300 at the position where the liquid refrigerant changes to gaseous refrigerant in the defrosting mode, and arranging the silencer 400 in the dryer 300.

[0131] In the above refrigeration equipment, the dryer 300 can dry the refrigerant flowing from the first heat exchanger 700 to the second heat exchanger 600, or can also dry the refrigerant flowing from the second heat exchanger 600 to the first heat exchanger 700. By setting one dryer 300, the refrigerant flowing in different directions can be dried.

[0132] In the above refrigeration equipment, the silencer 400 silences the refrigerant that changes from liquid to gas in the defrosting mode, reducing the noise generated during the change of the refrigerant from liquid to gas; the silencer 400 can also reduce the flow rate of the refrigerant in the refrigeration mode, increase the reaction time of the refrigerant with the desiccant, and increase the drying effect of the refrigerant.

[0133] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0134] For the sake of convenience in explanation, the above description has been made in connection with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and the various different modified embodiments suitable for specific use considerations.

Claims

1. A refrigeration device, characterized in that, Comprising: A box body, which defines a storage cavity and an equipment cavity, and the storage cavity and the equipment cavity are independently arranged; the box body is provided with a storage cavity opening communicating with the storage cavity; A box door, which is arranged at the storage cavity opening in an openable and closable manner; the box door is connected to the box body; An evaporator, which is installed on the box body and is used to absorb the heat in the storage cavity; A condenser, which is arranged in the equipment cavity and is used to release heat to the outside of the storage cavity; A compressor, which is arranged in the equipment cavity, and the compressor, the condenser and the evaporator jointly form a refrigerant circulation loop; A dryer, which is arranged in the refrigerant circulation loop and is used to dry the refrigerant; the dryer defines a drying cavity; A silencer, which is located at the position where the liquid refrigerant changes to the gaseous refrigerant; a silencing cavity is defined in the silencer, the silencing cavity communicates with the drying cavity, and the silencing cavity and the drying cavity are arranged along the flowing direction of the refrigerant; the silencer is arranged inside the dryer, the silencing cavity extends along the flowing direction of the refrigerant, a center line is defined along the extending direction of the silencing cavity, and the inner wall of the silencing cavity is arranged in a direction away from the center line along the extending direction of the silencing cavity; At least part of the liquid refrigerant becomes gaseous when flowing through the silencing cavity, and the gaseous refrigerant enters the drying cavity from the silencing cavity for drying.

2. The refrigeration device according to claim 1, characterized in that, The silencer is arranged in the drying cavity, a desiccant is placed in the drying cavity, and the desiccant is located outside the silencer.

3. The refrigeration device according to claim 1 or 2, characterized in that, The silencer is provided with a through part for the refrigerant to enter and exit the silencing cavity, and the through part is arranged on the peripheral wall of the silencing cavity; the silencing cavity communicates with the drying cavity through the through part.

4. The refrigeration device according to claim 3, characterized in that, The silencing cavity includes a first end and a second end, and the first end and the second end are oppositely arranged along the extending direction of the silencing cavity; the end face size of the first end is smaller than that of the second end; the first end is provided with an opening for the refrigerant to enter and exit the silencing cavity; the second end is a closed end.

5. The refrigeration device according to claim 4, characterized in that, The dryer includes a third end and a fourth end, and the third end and the fourth end are oppositely arranged along the extending direction of the silencing cavity; the third end corresponds to the first end, the first end passes through the drying cavity from the third end, the fourth end is provided with an opening for the refrigerant to enter and exit the drying cavity, and one of the first end and the fourth end is a refrigerant inlet, and the other is a refrigerant outlet.

6. The refrigeration device according to claim 1, wherein Define the plane perpendicular to the flowing direction of the refrigerant as the first plane, and the cross-sectional size of the silencing cavity in the first plane increases along the flowing direction of the refrigerant.

7. The refrigeration device according to claim 1, characterized in that The silencer is connected with a partition plate, and the partition plate is arranged in the silencing cavity.

8. The refrigeration device according to claim 7, characterized in that, A plurality of the partition plates are arranged, at least part of the partition plates are arranged along the setting direction of the silencer; at least part of the partition plates are arranged along the circumferential direction of the silencing cavity.

9. The refrigeration device according to claim 1, characterized in that, It further includes a reversing valve which is arranged in the refrigerant circulation loop and used for switching the flow direction of the refrigerant; a dryer is arranged between the evaporator and the condenser; when the refrigerant flows from the condenser to the evaporator, the refrigerant is dried through the drying cavity and then flows to the evaporator after passing through the silencing cavity for transition; when the refrigerant flows from the evaporator to the condenser, the refrigerant is silenced through the silencer and then flows into the drying cavity for drying treatment, and finally flows to the condenser.

10. A refrigeration device, characterized in that, Comprising: A box body which defines a storage cavity and an equipment cavity, and the storage cavity and the equipment cavity are independently arranged; the box body is provided with a storage cavity opening communicating with the storage cavity; A box door which is arranged at the storage cavity opening in an openable and closable manner; the box door is connected to the box body; A first heat exchanger which is installed on the box body and used for absorbing the heat in the storage cavity; A second heat exchanger which is arranged in the equipment cavity and used for releasing heat to the outside of the storage cavity; A compressor which is arranged in the equipment cavity, and the compressor, the second heat exchanger and the first heat exchanger jointly form a refrigerant circulation loop; A reversing valve which is arranged in the refrigerant circulation loop and used for switching the flow direction of the refrigerant; A silencer which is arranged in the refrigerant circulation loop; the silencer is located between the first heat exchanger and the second heat exchanger, a silencing cavity is defined in the silencer, the silencing cavity extends along the flow direction of the refrigerant, a center line is defined along the extending direction of the silencing cavity, and the inner wall of the silencing cavity is arranged in a direction away from the center line along the extending direction of the silencing cavity; When the refrigerant flows from the second heat exchanger to the first heat exchanger, the refrigerant flows through the silencing cavity for silencing treatment and then flows into the second heat exchanger.

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