CN216557833U - Refrigeration device - Google Patents

Abstract

The invention provides refrigeration equipment which comprises a cabinet body, wherein the cabinet body is provided with an inner container forming a storage chamber, a shell, a heat preservation cavity arranged between the inner container and the shell and a unit cabin formed on the lower side of the cabinet body; the refrigeration unit is arranged in the unit bin and is provided with a base, a compressor, a condenser and an evaporator, wherein the compressor, the condenser and the evaporator are arranged on the base and are connected through pipelines; the lower side of the inner container is of a step-shaped structure protruding into the storage compartment, the unit bin is positioned behind and below the step-shaped structure and is provided with a first cavity positioned on the front side and a second cavity positioned on the rear side of the first cavity, the vertical height of the first cavity is smaller than that of the second cavity, a first heat exchange port and a second heat exchange port which are communicated with the installation cavity are formed in the machine base, the first heat exchange port is arranged towards the first cavity in an open mode, and the second heat exchange port is arranged towards the second cavity in an open mode; the heat dissipation in the installation cavity is good.

Description

Refrigeration device

Technical Field

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

Background

The existing refrigeration equipment is divided into direct cooling type and air cooling type according to different refrigeration modes. For the air-cooled refrigeration equipment, a unit cabin is usually arranged at the bottom of a cabinet body to install components such as a compressor, a condenser and the like, and an air duct is usually arranged in an inner container in the cabinet body to supply air. And because parts such as compressor and condenser all integrate in refrigerating unit for refrigerating unit is after installing into unit storehouse, and inside heat dissipation is slow.

Disclosure of Invention

The invention aims to provide a refrigerating device with good heat dissipation inside a refrigerating unit.

To achieve one of the above objects, according to an embodiment of the present invention, there is provided a refrigeration apparatus including:

the refrigerator comprises a cabinet body and a storage box, wherein the cabinet body is provided with an inner container forming a storage chamber, a shell, a heat preservation cavity arranged between the inner container and the shell and a unit cabin formed on the lower side of the cabinet body;

the refrigerating unit is arranged in the unit bin and is provided with a base, and a compressor, a condenser and an evaporator which are arranged on the base and connected through pipelines, wherein the base is provided with an installation cavity for accommodating the compressor and the condenser;

the inner bag downside is the step-like structure to indoor stretching of storing room, the unit storehouse is located aforementioned step-like structure's rear lower place to have the first cavity that is located the front side and the second cavity that is located first cavity rear side, the vertical height of first cavity is less than the vertical height of second cavity, be formed with first heat transfer mouth and the second heat transfer mouth that feeds through the installation cavity on the frame, first heat transfer mouth is towards the open setting of first cavity, the open setting of second heat transfer mouth towards the second cavity.

As a further improvement of an embodiment of the present invention, the inner container has a bottom wall located at the bottom thereof and arranged in a step shape, the outer shell includes a top shell, two side shells, a rear shell, and a bottom shell corresponding to the bottom wall structure, the bottom shell has a bottom shell upper wall formed at the top of the unit cabin, and a bottom shell connector connected to the front end of the bottom shell upper wall, the vertical height of the bottom shell connector is gradually reduced from back to front, and the unit cabin is located between the bottom shell upper wall, the bottom shell connector and the two side shells.

As a further improvement of an embodiment of the present invention, the bottom case connecting body has a first bottom case connecting wall located on a front side, a vertical height of the first bottom case connecting wall gradually decreases from back to front, and the first cavity is located between the first case connecting wall and the two side cases.

As a further improvement of an embodiment of the present invention, the bottom shell further has a bottom shell lower wall connected to a front end of the bottom shell connector, the refrigeration equipment further includes a lifting assembly connecting the bottom shell lower wall and the two side shells, and a first heat dissipation channel communicated with the first cavity is formed on the lifting assembly.

As a further improvement of an embodiment of the present invention, the base includes a base for mounting the compressor and the condenser, a heat insulating member fixed above the base, and a cover for covering the base and an outer side of the heat insulating member, the mounting chamber is formed in the cover and located between the heat insulating member and the base, the cover has a front cover wall and a rear cover wall which are arranged opposite to each other in the front-rear direction, the first heat exchanging port is arranged on the front cover wall, and the second heat exchanging port is arranged on the rear cover wall.

As a further improvement of an embodiment of the present invention, the refrigeration unit further includes a condensing fan disposed on the base, the compressor, the condensing fan and the condenser are arranged in a row along a length direction of the base, the installation chamber has an air outlet chamber located on an air exhaust side of the condensing fan and an air inlet chamber located on an air suction side of the condensing fan, the first heat exchange port includes a first heat exchange outlet disposed on a front side of the air outlet chamber, and the second heat exchange port includes a first heat exchange inlet disposed on a rear side of the air inlet chamber.

As a further improvement of an embodiment of the present invention, the first heat exchange port further includes a second heat exchange inlet disposed on the front side of the air inlet cavity, and the second heat exchange port further includes a second heat exchange outlet disposed on the rear side of the air outlet cavity.

As a further improvement of an embodiment of the present invention, the housing further includes a left housing wall and a right housing wall that are oppositely disposed along a length direction of the base, the left housing wall is provided with a third heat exchange port, the right housing wall is provided with a fourth heat exchange port, and the third heat exchange port and the fourth heat exchange port are both open toward the second cavity.

As a further improvement of an embodiment of the present invention, the two side housings are correspondingly provided with a first heat dissipation hole communicated with the second cavity and opposite to the third heat exchange port, and a second heat dissipation hole communicated with the second cavity and opposite to the fourth heat exchange port, and an axis of the first heat dissipation hole and an axis of the second heat dissipation hole are not overlapped.

As a further improvement of an embodiment of the present invention, an air inlet and an air return inlet which are communicated with the unit cabin and the storage compartment are formed on the cabinet body, the air inlet is arranged to penetrate through an upper wall of the bottom shell, and the air return inlet is arranged to penetrate through the bottom shell connector.

Compared with the prior art, in the embodiment of the invention, the lower side of the inner container is set to be the step-shaped structure, so that the first cavity and the second cavity which are arranged in the front and back are formed in the unit cabin, and because the first cavity and the second cavity have different vertical heights, when convection is formed between the first heat exchange port and the second heat exchange port which are communicated with the installation cavity, pressure difference is formed between the first cavity and the second cavity, and the heat dissipation in the installation cavity is accelerated.

Drawings

FIG. 1 is a schematic perspective view of a refrigeration unit in accordance with a preferred embodiment of the present invention;

FIG. 2 is an exploded schematic view of another perspective of the refrigeration unit of FIG. 1, wherein the refrigeration unit is located outside the unit bay;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an exploded schematic view of the refrigeration unit of FIG. 2;

FIG. 5 is an exploded schematic view of the cabinet of FIG. 2;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 5;

FIG. 7 is a cross-sectional view taken at C-C of FIG. 1;

FIG. 8 is a schematic view of a portion of FIG. 7 in an enlarged scale;

FIG. 9 is an exploded view of the refrigeration unit of FIG. 2 shown in abutting engagement with the damper plate;

FIG. 10 is a cross-sectional view taken at D-D of FIG. 9;

FIG. 11 is an exploded view of the inner bladder in abutting engagement with the air port plate;

FIG. 12 is a schematic perspective view of an enclosure in a refrigeration unit;

FIG. 13 is a schematic perspective view of the lift assembly of FIG. 1 with the roll-over plate in an elevated position;

FIG. 14 is a schematic perspective view of the lift assembly of FIG. 1 with the roll-over plate in a stowed position;

FIG. 15 is a schematic perspective view of the refrigeration unit of FIG. 1 positioned in the elevator assembly, with the refrigeration unit in the unit compartment and the roll-over panel in an elevated position;

FIG. 16 is a cross-sectional view taken at E-E of FIG. 9;

FIG. 17 is an exploded view of the evaporator and hold-down components of the refrigeration unit;

FIG. 18 is a schematic perspective view of a refrigeration unit at a base;

FIG. 19 is an enlarged partial schematic view of FIG. 18;

FIG. 20 is a partial schematic view of a cross-sectional view at F-F in FIG. 1;

FIG. 21 is a schematic perspective view of the thermal insulating unit of the refrigerator group mounted on the base;

fig. 22 is an exploded view of a fan housing and thermal insulating components of a refrigeration unit.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

It will be understood that terms such as "upper," "lower," "outer," "inner," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. As in the present invention, for convenience of description, when the refrigeration apparatus is normally used, the direction toward the ground is downward, and the direction away from the ground is upward; the direction parallel to the ground is a horizontal direction, and the direction vertical to the ground is a vertical direction; the side close to the user is the front side, and the side far away from the user is the back side.

Referring to fig. 1 to 22, a refrigeration device according to a preferred embodiment of the present invention may be configured as a refrigerator, a vertical refrigerator, a wine chest, a freezer, or the like, and is particularly suitable for a vertical refrigerator. Moreover, the refrigerating unit 20 in the refrigerating equipment can be replaced integrally, and the refrigerating equipment is suitable for quick replacement and maintenance in commercial scenes.

Referring to fig. 1 to 3, a refrigeration device includes a cabinet 10, where the cabinet 10 has an inner container 103 forming a storage compartment 101, an outer shell 105, and a heat preservation cavity 107 disposed between the inner container 103 and the outer shell 105, a lower side of the inner container 103 is stepped to protrude into the storage compartment 101, so that the storage compartment 101 is formed with a first space 109 located at a lower side and a second space 111 located at an upper side of the first space 109, and a front-back depth of the first space 109 is smaller than a front-back depth of the second space 111.

Referring to fig. 3 in a matching manner, in this embodiment, the storage compartment 101 is divided into the first space 109 and the second space 111 which are adjacent to each other up and down due to the stepped arrangement of the bottom of the inner container 103, and the first space 109 and the second space 111 cover the front side of the cabinet body 10 together, so that the upper space and the lower space of the refrigeration equipment are fully utilized for storage, the utilization rate of the storage compartment 101 is improved, and the user experience is improved.

In addition, a door (not shown) for closing the storage compartment 101 may be provided on the cabinet 10 at a later stage, and the door may cover the upper and lower ends of the cabinet 10. Moreover, the user sees from refrigeration plant's front side, except the door body that runs through from top to bottom, does not have other subassemblies such as thermovent, has promoted the holistic visual experience of refrigeration plant.

The cabinet 10 further forms a unit bin 113 located at the rear side of the first space 109, and the refrigeration equipment further includes a refrigeration unit 20 disposed in the unit bin 113. Because the inner container 103 is arranged in a step shape, the first space 109 and the unit bin 113 can be oppositely arranged in the front and the back, the front opening of the inner container 103 can be ensured to cover the front end of the shell 105 to the maximum extent, and meanwhile, the installation requirement of the refrigerating unit 20 can be met.

Further, as shown in fig. 4, the refrigeration unit 20 includes a base 201, a compressor 205, a condenser 207, and an evaporator 209, which are disposed on the base 201 and connected to each other by a pipe 203. In this embodiment, the compressor 205, the condenser 207, the evaporator 209, etc. are integrated into the base 201, and when a problem occurs and needs to be repaired or replaced, only the base 201 needs to be removed and replaced as a whole, and the refrigeration equipment does not need to be removed from the base for repair.

Specifically, an air inlet 115 and an air return opening 117 which are communicated with the unit cabin 113 and the storage compartment 101 are formed on the cabinet body 10, the base 201 is provided with an evaporation chamber 211 for accommodating the evaporator 209, and the evaporation chamber 211 is communicated with the storage compartment 101 through the air inlet 115 and the air return opening 117. In this embodiment, the cold energy generated by the evaporator 209 is transmitted to the storage compartment 101 through the air inlet 115, and the heat in the storage compartment 101 is transmitted to the evaporator 209 through the air return port 117 to be continuously cooled, so as to form an air-cooled refrigeration device.

With continued reference to fig. 3, further, the intake opening 115 and the return opening 117 are disposed on different planes, and the intake opening 115 is disposed to be open to the second space 111, and the return opening 117 is disposed to be open to the first space 109. In this embodiment, the air inlet 115 is opened toward the second space 111, and the air return 117 is opened toward the first space 109, so that the refrigerating air circulation of the refrigeration equipment is covered in the first space 109 and the second space 111. Moreover, the air inlet 115 and the air return port 117 are arranged on different planes, so that the cold energy entering the storage compartment 101 can be effectively prevented from being sucked into the evaporation chamber 211 without sufficient heat exchange, and the refrigeration effect of the refrigeration equipment can be avoided.

Referring to fig. 5 and 6, in particular, the inner container 103 has a top wall 103a, a bottom wall 103b opposite to the top wall 103a, a rear wall 103c and two side walls 103d, the bottom wall 103b is disposed in a step shape and has a first bottom wall 103b1 located on a front side and a second bottom wall 103b2 located on a rear side of the first bottom wall 103b1 and higher than the first bottom wall 103b1, the first bottom wall 103b1 and the second bottom wall 103b2 are connected by a connecting wall 103b3, the unit cabin 113 is located between the first bottom wall 103b1, the second bottom wall 103b2, the connecting wall 103b3 and the two side walls 103d, the air inlet 115 penetrates through the second bottom wall 103b2 to communicate with the second space 111, and the air return 117 penetrates through the connecting wall 103b3 to communicate with the first space 109.

In this embodiment, the first bottom wall 103b1, the connecting wall 103b3, and the second bottom wall 103b2 together form a stepped bottom wall 103 b. Among them, the first bottom wall 103b1 and the second bottom wall 103b2 are preferably arranged in parallel with each other. Moreover, the air inlet 115 penetrates through the second bottom wall 103b2, and the air return opening 117 penetrates through the connecting wall 103b3, so that the air return opening 117 is positioned below the air inlet 115, and the inside of the storage compartment 101 is fully cooled.

Specifically, the connecting wall 103b3 has a first wall 103b31 connecting the first bottom wall 103b1, and a second wall 103b32 connecting the first wall 103b31 and the second bottom wall 103b2, the second wall 103b32 extends forward and downward from the front end of the second bottom wall 103b2, and the air return opening 117 is disposed through the second wall 103b 32. In this embodiment, the return air opening 117 is formed through the second wall 103b32, so that the air circulation covers the first space 109 and the second space 111, and the cooling air circulation constituted by the intake air and the return air is ensured to be performed smoothly. Of course, the air return opening 117 may be formed through the first wall 103b31, or may be formed on a wall connecting the walls 103b3 at other inclination angles, as long as the wind circulation covers the first space 109 and the second space 111.

Further, the outer shell 105 includes a top shell 105a, two side shells 105b, a rear shell 105c and a bottom shell 105d which are respectively disposed corresponding to the walls of the inner container 103, the air inlet 115 and the air return opening 117 are formed on the bottom shell 105d, the bottom shell 105d is hermetically connected with the lower portion of the bottom wall 103b of the inner container 103, the bottom wall 103b of the inner container 103 is formed with an opening 103b4 for exposing the air inlet 115 and the air return opening 117 to the inner side of the inner container 103, and the opening 103b4 covers the air inlet 115 and the air return opening 117.

In this embodiment, in order to facilitate the manufacturing of the inner container 103, the bottom wall 103b is provided with the opening 103b4 covering the air inlet 115 and the air return opening 117, and two separate openings are not required to be opened for respectively connecting the air inlet 115 and the air return opening 117. But also facilitates the butt joint of the air inlet 115 and the air return opening 117 on the cabinet body 10 and the inner container 103 at the later stage.

Referring to fig. 7, further, an evaporation air duct 211a communicating the air inlet 115 and the air return opening 117 is formed in the evaporation chamber 211, and the vertical height of the evaporation air duct 211a gradually increases from the air return opening 117 to the air inlet 115. In this embodiment, the inclined arrangement of the evaporation air duct 211a satisfies the requirement of interfacing with the air circulation formed in the storage compartment 101. Moreover, the airflow corner between the evaporation air duct 211a formed in the base 201 and the wind direction of the air inlet 115 and the air return opening 117 in the storage compartment 101 is large, and the resistance applied when the airflow turns is small, so that the refrigeration efficiency of the refrigeration equipment is improved.

Further, the evaporator 209 is disposed obliquely upward from front to rear in the evaporation air duct 211 a. In this embodiment, since the evaporator 209 is disposed along the evaporation air duct 211a in a forward-backward and upward inclined manner, the heat dissipation volume of the evaporator 209 is larger under the same front-rear distance, the evaporator 209 extends on the air path, the heat exchange time between the air flow and the evaporator 209 is longer, and the heat exchange effect is good.

Further, the cabinet 10 further includes an air duct cover 119 disposed inside the inner container 103, the air duct cover 119 divides the second space 111 of the storage compartment 101 into a storage space 111a and a cooling air duct 111b in front and back directions, the air inlet 115 is communicated to the cooling air duct 111b, and the refrigeration apparatus further includes an evaporation fan 30 disposed in the cooling air duct 111 b.

In this embodiment, in order to reduce the space occupied by the refrigerator group 20, the evaporation fan 30 for discharging the cold in the evaporation chamber 211 may be disposed on the inner container 103, thereby increasing the front-rear depth of the first space 109 or the up-down height of the second space 111. Further, by providing the evaporation fan 30 in the cooling air supply duct 111b of the inner container 103, it is possible to reduce vibration of the refrigeration unit 20 caused by the operation of the evaporation fan 30. In addition, an electrical control box 60 for controlling the entire refrigeration unit 20 is also provided in the unit compartment 113, and the refrigeration unit 20 is butted against the electrical control box 60 by a terminal wire.

Referring to fig. 8, specifically, the evaporation fan 30 is a centrifugal fan 30a disposed near the air inlet 115, the cooling air duct 111b includes a lower air duct 111b1 for accommodating the centrifugal fan 30a and an upper air duct 111b2 located at an upper side of the centrifugal fan 30a, a front-rear width of the lower air duct 111b1 is greater than a front-rear width of the upper air duct 111b2, and the centrifugal fan 30a is fixed on a rear wall 103c of the inner container 103 and has an air inlet 30a1 communicating with the lower air duct 111b1 forward and an air outlet 30a2 communicating with the upper air duct 111b2 upward.

In this embodiment, the evaporation fan 30 is disposed on the rear wall 103c of the inner container 103 by using the centrifugal fan 30a which is capable of supplying air from the front side to the upper side, that is, the rotation axis of the centrifugal fan 30a is disposed in parallel in the front-rear direction, so that the front-rear space utilization rate of the second space 111 is improved. In addition, the front-back width of the lower air duct 111b1 is greater than the front-back width of the upper air duct 111b2, so that a pressure difference is generated when the air flow enters the upper air duct 111b2 from the lower air duct 111b1, the pressure of the air flow discharged into the storage compartment 101 from the upper air duct 111b2 is increased, and the refrigeration effect of the refrigeration equipment is improved.

Further, the refrigeration equipment further comprises a lifting assembly 40 disposed at the bottom of the cabinet 10 to drive the base 201 to move in the unit cabin 113 in a vertical direction, and to communicate the evaporation chamber 211 with the storage compartment 101. In this embodiment, the lifting assembly 40 is arranged to ensure that the evaporation chamber 211 in the base 201 is communicated with the storage compartment 101 and keeps sealed after the refrigeration unit 20 is placed in the unit cabin 113, so as to realize cooling of the storage compartment 101 by the refrigeration unit 20.

With continued reference to fig. 3 and 7, further, the housing 201 has an evaporation chamber 211 for accommodating the evaporator 209 and a mounting chamber 213 for accommodating the compressor 205 and the condenser 207; the cabinet body 10 further comprises an air duct cover 119 arranged on the inner container 103, the air duct cover 119 divides the storage compartment 101 into a storage space 111a and a cold air supply duct 111b in front and back, an evaporation fan 30 is arranged in the cold air supply duct 111b, the evaporation chamber 211 and the installation chamber 213 are sequentially arranged from top to bottom, and the storage compartment 101 and the evaporation chamber 211 are communicated with an air return opening 117 through an air inlet 115 formed in the cabinet body 10.

In this embodiment, the cooling air duct 111b, the evaporation chamber 211 and the installation chamber 213 are sequentially arranged from top to bottom, so that the occupied space of the refrigerating unit 20 can be saved, the front-rear space utilization rate of the storage space 111a is improved, and more articles can be placed in the storage space 101.

Here, the storage space 111a includes, but is not limited to, the above-mentioned set of the first space 109 and the second space 111.

With continued reference to fig. 8, specifically, the evaporation fan 30 is a centrifugal fan 30a disposed near the air inlet 115, the cooling air duct 111b includes a lower air duct 111b1 for accommodating the centrifugal fan 30a and an upper air duct 111b2 located at an upper side of the centrifugal fan 30a, a front-back width of the lower air duct 111b1 is greater than a front-back width of the upper air duct 111b2, and the centrifugal fan 30a is fixed on a rear wall 103c of the inner container 103 and has an air inlet 30a1 communicating with the lower air duct 111b1 forward and an air outlet 30a2 communicating with the upper air duct 111b2 upward.

In this embodiment, the cooling air duct 111b is disposed at the rear side of the inner container 103 in parallel in the vertical direction, so that the cooling air duct 111b and the evaporation chamber 211 form an air duct penetrating vertically, thereby reducing airflow resistance, and facilitating the centrifugal fan 30a to convey cooling energy in the evaporation chamber 211 to the storage compartment 101.

Further, an evaporation air duct 211a communicating the air inlet 115 and the air return opening 117 is formed in the evaporation chamber 211, and the vertical height of the evaporation air duct 211a from the air return opening 117 to the air inlet 115 is gradually increased. In this embodiment, the evaporation air duct 211a is inclined in the front-rear direction, and forms an included angle larger than 90 ° with the vertically arranged cooling air duct 111b, so that the turning angle of the air flow entering the cooling air duct 111b from the evaporation air duct 211a is increased, and the resistance to the air flow during turning is reduced.

Specifically, the evaporation air duct 211a includes a main air duct 211a1 for accommodating the evaporator 209, a return air duct 211a2 connected to the front side of the main air duct 211a1 and butted with the return air inlet 117, and an exhaust air duct 211a3 connected to the rear side of the main air duct 211a1 and butted with the air supply duct 111b, and the air supply duct 111b is located right above the exhaust air duct 211a 3.

In this embodiment, the included angle between the main air duct 211a1 and the exhaust air duct 211a3 is greater than 90 °, and the included angle between the main air duct 211a1 and the return air duct 211a2 is greater than 90 °, so that the resistance of the air flow when the direction of the air flow changes in the evaporation air duct 211a is reduced. In addition, the cooling air supply duct 111b is located right above the exhaust air duct 211a3, which facilitates the butt joint of the evaporation air duct 211a and the cooling air supply duct 111 b.

Further, the cooling air duct 111b further includes a guiding air duct 111b3 communicating the lower air duct 111b1 with the exhaust air duct 211a3, the guiding air duct 111b3 is disposed obliquely in the front-back direction, and the air inlet 115 is located at the front side of the air suction opening 30a 1. In this embodiment, since the air inlet 115 is located at the front side of the air inlet 30a1, the guide air duct 111b3 is disposed obliquely in the front-back direction, so that the airflow resistance from the air inlet 115 to the air inlet 30a1 can be reduced.

Further, the lower air duct 111b1 has a fan cavity 111b11 for accommodating the centrifugal fan 30a, and a suction cavity 111b12 located at the front side of the fan cavity 111b11, the upper air duct 111b2 has a discharge cavity 111b21 located at the upper side of the air outlet 30a2, and a discharge cavity 111b22 located at the upper side of the discharge cavity 111b21, the suction cavity 111b12 is located at the front side of the air inlet 30a1 and is communicated with the discharge cavity 111b21 through the centrifugal fan 30a, and the front and rear width of the discharge cavity 111b21 is gradually reduced from the discharge air outlet 30a2 to the discharge cavity 111b 22.

In this embodiment, after the centrifugal fan 30a rotates, a negative pressure is generated in the suction cavity 111b12, so that the evaporation chamber 211 is sucked into the cooling air duct 111b and discharged from the air outlet 30a2 into the upper air duct 11b 2. The front and rear widths of the discharge cavity 111b21 gradually decrease from the discharge opening 30a2 to the discharge cavity 111b22, so that a pressure difference is generated between the discharge opening 30a2 and the discharge cavity 111b22, and the pressure of the airflow discharged from the upper air duct 111b2 to the storage compartment 101 is increased, thereby improving the refrigeration effect of the refrigeration equipment.

With continued reference to fig. 4, further, the base 201 includes a base 215, and a heat insulating member 217 fixed above the base 215, the evaporation chamber 211 is formed in the heat insulating member 217, the installation chamber 213 is formed between the heat insulating member 217 and the base 215, and the evaporation chamber 211 and the installation chamber 213 are disposed next to each other in the up-down direction. In this example. The evaporation chamber 211 is formed by the insulating member 217, and heat generated in the installation chamber 23 is restricted from entering the evaporation chamber 211. Furthermore, the evaporation chamber 211 and the installation chamber 213 are arranged in close proximity to each other, so that the structure of the refrigeration unit 20 is more compact, and the use space of the storage compartment 101 is increased.

Further, the evaporator 209 is disposed on the heat insulating member 217 and is disposed to be inclined along the main duct 211a 1. In this embodiment, the evaporator 209 is obliquely disposed along the main air duct 211a1, so that the front and rear space occupied by the evaporator 209 is saved, and the front and rear space utilization rate of the storage compartment 101 can be improved.

Further, the refrigeration unit 20 further includes a condensing fan 219 disposed on the base 215, the condenser 207 and the compressor 205 are disposed on the base 215 in a left-right opposite manner, and the condensing fan 219 is disposed between the condenser 207 and the compressor 205. In this embodiment, the compressor 205, the condensing fan 219, and the condenser 207 are sequentially arranged on the base 215 in the left-right direction, so that the front-rear width of the base 215 is reduced, the front-rear occupied space of the refrigeration unit 20 is reduced, and the front-rear space utilization rate of the storage compartment 101 can be improved.

Specifically, the evaporator 209 extends in the width direction of the cabinet 10, and is disposed directly above the compressor 205, the condensing fan 219, and the condenser 207. In this embodiment, the evaporator 209 extends along the width direction of the cabinet 10, so that the evaporator 209 can meet the cooling requirement and simultaneously compress the front and rear occupied spaces of the evaporator 209 to the maximum extent. Moreover, the compressor 205, the condensing fan 219 and the condenser 207 are sequentially arranged below the evaporator 209 along the width direction of the cabinet 10, so that the structure of the refrigeration unit 20 is more compact, the front and rear occupied spaces of the refrigeration unit 20 are saved, and the front and rear space utilization rate of the storage compartment 101 can be improved.

With continuing reference to fig. 3, further, the refrigeration device further includes a cabinet 10 supported at the bottom of the base 201 and fixedly connected thereto; an air inlet 115 and an air return opening 117 which are communicated with the unit cabin 113 and the storage compartment 101 are formed in the cabinet body 10, a sealing positioning groove 121 which surrounds the outer sides of the air inlet 115 and the air return opening 117 is formed in the end face facing the unit cabin 113, a sealing piece 221 which protrudes out of the outer surface of the base 201 is arranged on the base 201, and after the base 201 is installed on the unit cabin 113, the sealing piece 221 abuts against the sealing positioning groove 121 under the action of the lifting assembly 40, so that the base 201 is limited in the unit cabin 113 and is communicated with the storage compartment 101 in a sealing mode.

In this embodiment, after the base 201 is installed in the unit cabin 113 through the lifting assembly 40, the sealing element 221 protruding from the outer surface is positioned and abutted against the sealing positioning groove 121, so that the base 201 and the unit cabin 113 are accurately abutted, the base 201 is limited from being displaced in the unit cabin 113, and the base 201 and the storage compartment 101 are hermetically connected. Moreover, since the sealing positioning groove 121 surrounds the outside of the air inlet 115 and the air return opening 117, after the base 201 is in sealed butt joint with the cabinet 10, the air inlet 115 and the air return opening 117 can be in sealed communication with the storage compartment 101 and the evaporation chamber 211 inside the base 201.

With continued reference to fig. 6, the inner container 103 has a bottom wall 103b located at the bottom thereof and disposed in a step shape, the outer shell 105 includes a bottom shell 105d corresponding to the bottom wall 103b, the bottom shell 105d has a bottom shell upper wall 105d1 formed at the top of the unit compartment 113, a bottom shell lower wall 105d2 located at the front side of the unit compartment 113 and lower than the bottom shell upper wall 105d1, and a bottom shell connecting body 105d3 connecting the bottom shell upper wall 105d1 and the bottom shell lower wall 105d2, the air inlet 115 is disposed through the bottom shell upper wall 105d1, and the air return opening 117 is disposed through the bottom shell connecting body 105d 3.

In this embodiment, the air inlet 115 and the air return opening 117 penetrate different planes respectively, and the sealing positioning groove 121 covers the air inlet 115 and the air return opening 117, so that the sealing positioning groove 121 covers different planes, which not only can limit the machine base 201 from deviating along the horizontal direction, but also can limit the machine base 201 from deviating along the vertical direction, thereby ensuring the effect.

With reference to fig. 9, in addition, an opening 105d4 is formed on the bottom housing 105d and penetrates through the bottom housing upper wall 105d1 and the bottom housing connecting body 105d3, the outer housing 105 further includes a vent plate 105e disposed on the opening 105d4, and the seal positioning groove 121 is formed on the vent plate 105 e.

In this embodiment, in order to facilitate the manufacture of the housing 105, the opening 105d4 penetrates through both the bottom housing upper wall 105d1 and the bottom housing connector 105d3, so as to cover the air inlet 115 and the air return opening 117, and there is no need to provide two separate corresponding openings on the bottom housing upper wall 105d1 and the bottom housing connector 105d3, which also facilitates the later docking. The air inlet plate 105e is arranged on the opening 105d4, and the sealing positioning groove 121 is arranged on the air inlet plate 105e, so that the manufacturing cost is saved, and later maintenance is facilitated. Furthermore, the air inlet 115 and the air return 117 are both disposed on the air inlet plate 105e, and the air inlet plate 105e can be detached or disassembled independently at a later stage, so as to be replaced or cleaned.

Specifically, the sealing and positioning groove 121 is configured as a single closed annular structure, and the projections of the air inlet 115 and the air return 117 are both located inside the annular structure. In this embodiment, the sealing and positioning groove 121 with a single annular structure has a simple structure, and is convenient to manufacture and produce. Of course, the sealing and positioning slot 121 may also cover the outside of the air inlet 115 and the air return 117 at the same time, for example, forming an "8" shape.

With reference to fig. 10, further, the seal positioning groove 121 is recessed towards a side away from the base 201 and has a circular arc-shaped cross section, the sealing member 221 has a first sealing wall 221a matching the cross section of the seal positioning groove 121, and an arc radius of the first sealing wall 221a is smaller than a groove radius of the seal positioning groove 121.

In this embodiment, when the lifting assembly 40 drives the base 201 to ascend in the unit cabin 113, the sealing element 221 abuts against the inside of the sealing positioning slot 121 and elastically deforms, so that the base 201 in the area of the sealing positioning slot 121 is sealed. Moreover, because the arc radius of the first sealing wall 221a is smaller than the groove radius of the sealing positioning groove 121, the first sealing wall 221a is more attached to the sealing positioning groove 121 after being deformed by stress, and the sealing effect is better.

Specifically, the base 201 includes a base 215, and a casing 223 disposed above the base 215 and matched with the bottom housing 105d, wherein a sealing installation groove 223a corresponding to the sealing positioning groove 121 is disposed on an upper surface of the casing 223, the sealing installation groove 223a is recessed towards a side away from the bottom housing 105d, and has a cross section with a planar structure, the sealing member 221 further includes a second sealing wall 221b connected to the first sealing wall 221a and adhered to the sealing installation groove 223a, a sealing extrusion cavity 221c formed between the first sealing wall 221a and the second sealing wall 221b, and a sealing connection wall 221d connecting the first sealing wall 221a and the second sealing wall 221b and penetrating through the sealing extrusion cavity 221 c.

In this embodiment, the second sealing wall 221b is configured as a planar structure matching with the sealing installation groove 223a, so that the bonding between the two is more secure after the two are connected. The seal pressing chamber 221c and the seal connection wall 221d are provided such that the seal member 221 is restored and maintains a shape before deformation after being separated from the seal positioning groove 121.

As shown in fig. 11, further, an opening 103b4 is formed in the bottom wall 103b for exposing the air inlet 115 and the air return opening 117 to the storage compartment 101, the bottom wall 103b includes a flanged wall 103b5 formed by bending and extending from a side edge of the opening 103b4, and the flanged wall 103b5 is adhered to the air vent plate 105e to hermetically connect the opening 103b4 and the air vent plate 105 e.

In this embodiment, the flanging wall 103b5 formed by bending and extending along the lateral edge of the opening 103b4 is in matching butt joint with the air inlet plate 105e, and is fixed together in an adhesion manner, so that the installation is convenient, and the sealing performance of the liner 103 and the air inlet plate 105e is improved. Moreover, the cuff wall 103b5 provides a thermal insulating chamber 107 for the foam material between the bottom wall 103b and the tuyere plate 105 e.

Specifically, the flap wall 103b5 includes a first flap 103b51 formed by bending and extending from the side edge of the opening 103b4 toward the air inlet plate 105e, and a second flap 103b52 formed by bending and extending from the edge of the first flap 103b51, a positioning groove 105e1 corresponding to the second flap 103b52 is disposed on the side of the air inlet plate 105e close to the bottom wall 103b, and the second flap 103b52 is adhered in the positioning groove 105e 1.

In this embodiment, after the second flanges 103b52 are disposed in the positioning slots 105e1 in a matching manner, the two flanges are fixed together in an adhering manner, so as to ensure the sealing performance.

With continued reference to fig. 5 and 6, further, the inner container 103 further has a top wall 103a, a rear wall 103c and two side walls 103d opposite to the bottom wall 103b, the bottom wall 103b includes a first bottom wall 103b1, a second bottom wall 103b2 and a connecting wall 103b3 corresponding to the bottom housing 105d, the connecting wall 103b3 has a first wall 103b31 connecting the first bottom wall 103b1 and a second wall 103b32 connecting the first wall 103b31 and the second bottom wall 103b2, the second wall 103b32 extends forward and downward from the front end of the second bottom wall 103b2, the air inlet 115 is disposed through the second bottom wall 103b2, and the air return 117 is disposed through the second wall 103b 32.

In this embodiment, since the air inlet 115 is disposed through the second bottom wall 103b2 and the air return opening 117 is disposed through the second wall 103b32, the air circulation formed by the air inlet 115 and the air return opening 117 can better cover the entire storage compartment 101, thereby enhancing the cooling effect of the cooling device.

Further, the air inlet plate 105e includes a first plate 105e2 corresponding to the second bottom wall 103b2, and a second plate 105e3 connecting the first plate 105e2 and corresponding to the second wall 103b32, the air inlet 115 is disposed on the first plate 105e2, and the air return 117 is disposed on the second plate 105e 3.

In this embodiment, because the air inlet 115 and the air return 117 penetrate in different directions, the air inlet plate 105e may be configured to be composed of a first plate 105e2 and a second plate 105e3, wherein the air inlet 115 is disposed on the first plate 105e2, and the air return 117 is disposed on the second plate 105e3, which can reduce the manufacturing and production difficulties. In addition, the air inlet 115 adopts an independent through hole structure, and the air return opening 117 adopts a matrix type grid-shaped through hole, so that cold flow in the storage compartment 101 is prevented from entering the evaporation chamber 211 through the air return opening 117 too early, and the energy consumption of the refrigeration equipment is reduced.

As shown in fig. 12, the housing 201 further has an evaporation chamber 211 for accommodating the evaporator 209, the cover 223 has a first cover wall 223b located at the top thereof and corresponding to the first plate 105e2, and a second cover wall 223c connected to the first cover wall 223b and corresponding to the second plate 105e3, the first cover wall 223b is provided with an air outlet 223d communicated with the evaporation chamber 211 and corresponding to the air inlet 115, the second cover wall 223c is provided with an air return opening 223e communicated with the evaporation chamber 211 and corresponding to the air return opening 117, and the sealing installation groove 223a surrounds the outer sides of the air outlet 223d and the air return opening 223 e.

In this embodiment, the top of the casing 223 is configured as a first casing wall 223b and a second casing wall 223c that are connected to each other and have a certain included angle, and the casing 223 is mated and butted with the air inlet plate 105 e. Moreover, the cover 223 is provided with an air outlet 223d corresponding to the air inlet 115 and an air return port 223e corresponding to the air return port 117, and the air outlet 223d and the air return port 223e are covered by the sealing element 221, so that the evaporation chamber 211 can be ensured to be communicated with the storage compartment 101 in a sealing manner.

With continuing reference to fig. 3, 5, and 6, further, the inner container 103 has a bottom wall 103b located at the bottom thereof and arranged in a step shape, the outer shell 105 includes a bottom shell 105d corresponding to the bottom wall 103b, the bottom shell 105d has a bottom shell upper wall 105d1 formed at the top of the unit cabin 113 and a bottom shell connecting body 105d3 connected to the front end of the bottom shell upper wall 105d1, after the lifting assembly 40 drives the base 201 to ascend in the unit cabin 113, the base 201 abuts against the bottom shell upper wall 105d1 and the bottom shell connecting body 105d3, and is limited on the lifting assembly 40.

In this embodiment, by setting the bottom shell 105d of the outer shell 105 to be step-shaped to match the bottom wall 103b of the inner container 103, after the lifting assembly 40 drives the base 201 to rise in the unit compartment 113, the base 201 abuts against the upper wall 105d1 of the bottom shell and the bottom shell connecting body 105d3 through the lifting assembly 40, so as to prevent the base 210 from being separated from the unit compartment 113 during the use of the refrigeration equipment.

With reference to fig. 13 and 14, further, the lifting assembly 40 includes a bottom frame 401, a flip plate 403 rotatably disposed on the bottom frame 401, and a stop member 405 disposed on the flip plate 403, wherein the flip plate 403 has a storage state accommodated in the bottom frame 401 and a lifting state protruding from the bottom frame 401, and in the lifting state, the stop member 405 protrudes from a top end of the flip plate 403 and extends into the base 201 to limit the base 201 from shifting in the horizontal direction.

In this embodiment, as shown in fig. 13, the base 21 is driven to rise in the unit cabin 113 by the rotation of the turning plate 403, and finally, when the turning plate 403 is in the lifted state, the stop part 405 protrudes from the top end of the turning plate 403 and just extends into the base 201, so as to limit the base 201 from shifting in the horizontal direction. As shown in fig. 14, after the flipping plate 403 is rotated in the reverse direction, the flipping plate 403 is finally in the storage state, at this time, the upper end of the flipping plate 403 is just flush with the bottom frame 401, the stopper 405 is also located at the lower side of the upper end surface of the bottom frame 401, and the base 201 can pull out the unit cabin 113 from the bottom frame 401, so that the maintenance and replacement of the refrigeration unit 20 are facilitated.

Further, the lifting assembly 40 further includes a rotating rod 407 fixedly connected to the turning plate 403 and rotatably disposed in the bottom frame 401, the turning plate 403 includes a plate body 403a extending forward and backward and fixed to the rotating rod 407, and the stopper 405 is disposed on an end surface of the plate body 403a on a side away from the rotating rod 407.

In this embodiment, the operator can rotate the rotating rod 407 through a tool, and turn over the plate main body 403 a. When the plate main body 403a is turned to the lifted state, the bottom of the base 201 abuts against the end surface of the plate main body 403a on the side away from the rotating rod 407, and at this time, the stop member 405 can just extend into the base 201, so that the base 201 is limited from shifting on the lifting assembly 40.

Specifically, the plate main body 403a has a long plate 403a1 and a short plate 403a2 connected to one side in the width direction of the long plate 403a1, and the stopper 405 is provided on the short plate 403a2 on the side of the long plate 403a1 away from the rotating lever 407 and projects outside the plate main body 403a in a direction parallel to the long plate 403a 1.

In this embodiment, the plate main body 403a is made of the long plate 403a1 and the short plate 403a2, and the stopper 405 is integrally formed on the short plate 403a2, so that the structure is simple and the production cost is low. Of course, the stopper 405 may be welded or otherwise fixed to the short plate 403a2, or may be raised outside the short plate 403a 2.

Further, the bottom frame 401 includes a pair of first frame bodies 401a extending in the left-right direction and disposed opposite to each other in the front-rear direction, and a second frame body 401b connected between the adjacent first frame bodies 401a, the second frame body 401b includes a connecting frame body 401b1 connected between the adjacent first frame bodies 401a, and a supporting frame body 401b2 connected to one side of the connecting frame body 401b1, and the rotating lever 407 is connected between the adjacent first frame bodies 401a and supported by a side of the supporting frame body 401b2 away from the connecting frame body 401b 1.

In this embodiment, the first frame 401a and the supporting frame 401b2 are supported by the bottom of the base 201 in the storage state, and the flip plate 403 is supported by the bottom of the base 201 in the lifting state. The rotating lever 407 and the connecting frame body 401b1 are respectively located at both ends of the supporting frame body 401b2, so that the supporting frame body 401b2 more stably supports the base 201. In addition, the bottom frame 401 of the present invention is preferably composed of a first frame 401a and a second frame 401b that are symmetrical to each other.

As shown in fig. 15, the second frame bodies 401b are disposed between the adjacent first frame bodies 401a at intervals, a first heat dissipation channel 409 is formed between the adjacent second frame bodies 401b, and a second heat dissipation channel 411 is formed between the adjacent plate main bodies 403a and the connecting frame body 401b 1.

In this embodiment, since the lifting assembly 40 is installed behind the cabinet 10, a certain gap exists between the cabinet 10 and the ground, when the base 201 is installed behind the unit cabin 113, the base 201 can radiate heat downwards through the first heat radiation channel 409 and the second heat radiation channel 411, thereby facilitating heat radiation of the base 201.

Furthermore, the top of the connecting frame 401b1 is bent and extended to form a positioning frame plate 401b11, and in the storage state, the base 201 is placed between the adjacent positioning frame plates 401b 11. In this embodiment, when the flipping board 403 is in the storage state, due to the positioning frame board 401b11, the base 201 can only move back and forth on the bottom frame 401, but cannot move in the left and right directions, thereby facilitating the positioning and installation of the base 201 in the unit bin 113.

Further, a first folding edge 401b12 extending in the front-rear direction is formed on a side of the connecting frame 401b1 away from the positioning frame plate 401b11, and second folding edges 401b21 extending in the left-right direction are formed on both front and rear sides of the supporting frame 401b 2. In this embodiment, the provision of the first flange 401b12 improves the supporting strength of the connecting frame 401b1, and the provision of the second flange 401b21 improves the supporting strength of the supporting frame 401b 2.

Further, the bottom housing connecting body 105d3 is disposed to extend forward and downward from the front end of the bottom housing upper wall 105d1, the bottom wall 103b includes a second bottom wall 103b2 and a connecting wall 103b3 corresponding to the bottom housing 105d, respectively, an air inlet 115 and an air return opening 117 are formed in the cabinet 10 to communicate the unit compartment 113 and the storage compartment 101, the air inlet 115 is disposed through the second bottom wall 103b2, and the air return opening 117 is disposed through the connecting wall 103b 3.

In this embodiment, the air inlet 115 and the air return 117 located on different planes can ensure that the air circulates to cover the entire storage compartment 101.

Further, the base 201 includes a base 215, and a cover 223 disposed above the base 215 and matching with the bottom shell 105d, wherein in the lifted state, the cover 223 abuts against the bottom shell 105d, and the stopper 405 extends into the base 215.

In this embodiment, the stop 405 is inserted between the ribs, which are arranged in a crisscross manner at the lower end of the base 215, so as to limit the offset of the base 201.

With reference to fig. 3 and 7, further, a stepped structure protruding into the storage compartment 101 is formed on the lower side of the inner container 103, the unit cabin 113 is located behind and below the stepped structure, and has a first cavity 113a located on the front side and a second cavity 113b located on the rear side of the first cavity 113a, a vertical height of the first cavity 113a is smaller than a vertical height of the second cavity 113b, a first heat exchange port 201a and a second heat exchange port 201b communicating with the installation chamber 213 are formed on the machine base 201, the first heat exchange port 201a is open towards the first cavity 113a, and the second heat exchange port 201b is open towards the second cavity 113 b.

In this embodiment, the lower side of the inner container 103 is set to be a stepped structure, so that a first cavity 113a and a second cavity 113b are formed in the unit cabin 113, and the first cavity 113a and the second cavity 113b have different vertical heights, so that when convection is formed between the first heat exchange port 201a and the second heat exchange port 201b communicated with the installation chamber 213, a pressure difference is formed between the first cavity 113a and the second cavity 113b, and heat exchange in the installation chamber 213 is accelerated.

With continued reference to fig. 5 and 6, further, the inner container 103 has a bottom wall 103b located at the bottom thereof and having a step-like arrangement, the outer shell 105 includes a top shell 105a, two side shells 105b, a rear shell 105c, and a bottom shell 105d corresponding to the structure of the bottom wall 103b, the bottom shell 105d has a bottom shell upper wall 105d1 formed at the top of the unit compartment 113, and a bottom shell connecting body 105d3 connected to the front end of the bottom shell upper wall 105d1, the vertical height of the bottom shell connecting body 105d3 is gradually reduced from the back to the front, and the unit compartment 113 is located between the bottom shell upper wall 105d1, the bottom shell connecting body 105d3 and the two side shells 105 b.

In this embodiment, since the unit cabin 113 is formed at the lower side of the bottom shell connecting body 105d3, and the vertical height of the bottom shell connecting body 105d3 is gradually reduced from back to front, so that the vertical section of the unit cabin 113 is in a tapered structure, the pressure difference between the front side and the rear side of the unit cabin 113 is further increased, and the heat exchange in the installation chamber 213 is accelerated.

Further, the bottom case connecting body 105d3 has a first bottom case connecting wall 105d31 located at the front side, the vertical height of the first bottom case connecting wall 105d31 is gradually decreased from the rear to the front, and the first cavity 113a is located between the first case connecting wall 105d31 and the two side cases 105 b.

In this embodiment, the first cavity 113a has a tapered vertical cross-section. So that a pressure difference exists between the front and rear sides of the first cavity 113a to accelerate the flow of the gas in the installation chamber 213.

Further, the bottom housing 105d further has a bottom housing wall 105d2 connected to the front end of the bottom housing connecting unit 105d3, the refrigeration device further includes a lifting assembly 40 connected to the bottom housing wall 105d2 and the two side housings 105b, and the lifting assembly 40 is formed with a first heat dissipating channel 409 communicated with the first cavity 113 a.

In this embodiment, the airflow in the first cavity 113a is guided downward through the first heat dissipation channel 409, and the airflow is guided downward through the gap formed between the lifting assembly 40 and the ground, so as to increase the heat exchange area. In addition, the second cavity 113b is also communicated with the second heat dissipation channel 411, so that the air flow in the second cavity 113b can be guided downwards, and the heat exchange area is increased.

As shown in fig. 16, the housing 201 further includes a base 215 for mounting the compressor 205 and the condenser 207, a heat insulating member 217 fixed above the base 215, and a cover 223 covering the base 215 and the heat insulating member 217, the mounting chamber 213 is formed in the cover 223 and located between the heat insulating member 217 and the base 215, the cover 223 has a front cover wall 223f and a rear cover wall 223g which are arranged in a front-rear opposite manner, the first heat exchanging port 201a is arranged on the front cover wall 223f, and the second heat exchanging port 201b is arranged on the rear cover wall 223 g.

In this embodiment, the first heat exchanging port 201a communicates with the front side of the front housing wall 223f, and the second heat exchanging port 201b communicates with the rear side of the rear housing wall 223g, so that heat generated in the installation chamber 213 is continuously radiated outward.

Further, the refrigeration unit 20 further includes a condensing fan 219 disposed on the base 215, the compressor 205, the condensing fan 219 and the condenser 207 are arranged along the length direction of the base 215, the installation cavity 213 has an air outlet cavity 213a located on the air exhaust side of the condensing fan 219 and an air inlet cavity 213b located on the air suction side of the condensing fan 219, the first heat exchanging port 201a includes a first heat exchanging outlet 201a1 disposed on the front side of the air outlet cavity 213a, and the second heat exchanging port 201b includes a first heat exchanging inlet 201b1 disposed on the rear side of the air inlet cavity 213 b.

In this embodiment, a heat dissipation airflow is formed in the casing 223 from the back to the front to communicate the first heat exchange inlet 201b1 and the first heat exchange outlet 201a1, and the pressure difference formed between the first cavity 113a and the second cavity 113b accelerates the flow of the heat dissipation airflow, thereby accelerating the heat dissipation inside the installation chamber 213.

Further, the first heat exchanging port 201a further includes a second heat exchanging inlet 201a2 disposed at the front side of the air inlet cavity 213b, and the second heat exchanging port 201b further includes a second heat exchanging outlet 201b2 disposed at the rear side of the air outlet cavity 213 a.

In this embodiment, the first heat exchanging outlet 201a1 and the second heat exchanging inlet 201a2 disposed on the front cover wall 223f are both connected to the first cavity 113a, so as to form a circulating airflow in the first cavity 113a, accelerate the airflow, and reduce the temperature. Similarly, the first heat exchange inlet 201b1 and the second heat exchange outlet 201b2 disposed on the rear cover wall 223g are both connected to the second cavity 113b, so as to form a circulating gas flow in the second cavity 113b, accelerate the gas flow and reduce the temperature.

Further, the housing 223 further has a left housing wall 223h and a right housing wall 223i which are oppositely arranged along the length direction of the base 215, the left housing wall 223h is provided with a third heat exchange port 223j, the right housing wall 223i is provided with a fourth heat exchange port 223k, and the third heat exchange port 223j and the fourth heat exchange port 223k are both arranged towards the second cavity 113b in an open manner.

In this embodiment, the third heat exchange port 223j and the fourth heat exchange port 223k are disposed on the left and right sides of the housing 223 and located on both sides of the condensing fan 219, so as to form cooling air paths penetrating the entire installation chamber 213 from left to right, thereby accelerating the cooling of the installation chamber 213.

As shown in fig. 2, a first heat dissipation hole 105b1 communicating with the second cavity 113b and facing the third heat exchange port 223j and a second heat dissipation hole 105b2 communicating with the second cavity 113b and facing the fourth heat exchange port 223k are correspondingly formed in the two side cases 105b, and an axis of the first heat dissipation hole 105b1 and an axis of the second heat dissipation hole 105b2 are not overlapped.

In this embodiment, since the axes of the first heat dissipation vent 105b1 and the second heat dissipation vent 105b2 are not overlapped, when a plurality of refrigeration devices are arranged together, the first heat dissipation vent 105b1 of one refrigeration device is prevented from being opposite to the second heat dissipation vent 105b2 of the adjacent refrigeration device, thereby eliminating the mutual influence when the adjacent refrigeration devices dissipate heat.

Further, an air inlet 115 and an air return 117 are formed on the cabinet 10 and communicate the unit cabin 113 and the storage compartment 101, the air inlet 115 is disposed through the bottom case upper wall 105d1, and the air return 117 is disposed through the bottom case connecting body 105d 3. In this embodiment, the air inlet 115 and the air return 117 located on different planes can ensure that the air circulates to cover the entire storage compartment 101.

As shown in fig. 1 to 22, as described above, the refrigeration unit 20 according to the preferred embodiment of the present invention includes the compressor 205, the condenser 207, the evaporator 209, and the like, and is integrally installed in the refrigeration equipment, so that the entire refrigeration equipment does not need to be removed for later maintenance and replacement.

Specifically, as shown in fig. 4, the refrigeration unit 20 includes a base 201, and the compressor 205, the condenser 207, and the evaporator 209 are all disposed in the base 201 and connected by a pipeline 203, and the pipeline 203 includes a return air pipe 203a communicating the evaporator 209 and the compressor 205.

Referring to fig. 17 in a matching manner, further, the base 201 includes a heat preservation component 217 for installing the evaporator 209, the heat preservation component 217 has a heat preservation bottom wall 217a supported below the evaporator 209 and a heat preservation side wall 217b connected with the heat preservation bottom wall 217a and surrounding the periphery of the evaporator 209, a heat preservation channel 217c extending on the heat preservation side wall 217b is formed on the heat preservation component 217, and the air return pipe 203a extends towards the lower side of the heat preservation bottom wall 217a after being arranged along the heat preservation channel 217 c.

In this embodiment, the heat preservation channel 217c is arranged on the heat preservation component 217, and the air return pipe 203a is arranged behind the heat preservation channel 217c, so that the length of the air return pipe 203 is prolonged, and meanwhile, the heat exchange between the air return pipe 203a and the internal components of the base 201 is limited, and condensation on the air return pipe 203a is avoided.

Further, the heat insulating passage 217c is located on a side of the heat insulating sidewall 217b facing away from the evaporator 209, and extends back and forth on an outer side of the heat insulating sidewall 217 b. In this embodiment, the heat preservation passage 217c extending in a zigzag manner extends the length of the muffler 203a, and also serves to fix the muffler 203a to cancel out the vibration generated by the compressor 205.

Further, the pipeline 203 further includes a capillary 203b for communicating the evaporator 209 and the condenser 207, and the capillary 203b and the air return pipe 203a are arranged in the heat preservation channel 217c in parallel. In this embodiment, the capillary tube 203b is also provided in the heat-retaining passage 217c, and the capillary tube 203b can be preheated by the muffler 203a, thereby improving the cooling efficiency of the refrigerating unit.

Specifically, the base 201 further includes a base 215 fixed below the heat insulating member 217 and provided with the compressor 205 and the condenser 207, the heat insulating side wall 217b is internally surrounded by an evaporation chamber 211, an installation chamber 213 is formed between the heat insulating member 217 and the base 215, the heat insulating passage 217c has a first passage 217c1 and a second passage 217c2 extending along the length direction of the heat insulating member 217, and a third passage 217c3 communicating the first passage 217c1 and the second passage 217c2, the first passage 217c1 is communicated with the evaporation chamber 211, and the second passage 217c2 is communicated with the installation chamber 213.

In this embodiment, the first passage 217c1 and the second passage 217c2 are provided along the length direction of the insulating member 217, increasing the length of the insulating passage 217 c. After the first channel 217c1, the second channel 217c2 and the third channel 217c3 are combined, the structure is in a U shape, the structure is simple, the manufacturing difficulty of the heat preservation channel 217c is reduced, and the installation of the air return pipe 203a and the capillary 203b in the heat preservation channel 217c is facilitated.

Furthermore, an installation channel 217d penetrating through the thermal insulation side wall 217b is formed on the thermal insulation member 217, an installation member 217d1 is arranged in the installation channel 217d, and the capillary tube 203b and the air return tube 203a extend out of the evaporation chamber 211 and then penetrate through the installation member 217d 1.

In this embodiment, the installation component 217d1 can reduce the loss of cold energy between the evaporation chamber 211 and the heat preservation channel 217c, and can facilitate the butt joint of the muffler 203a and the capillary 203b with the evaporator 209, thereby playing a role in fixing the muffler 203a and the capillary 203 b.

Further, the heat insulating member 217 further has a spacing boss 217e disposed outside the heat insulating sidewall 217b and extending along the length direction of the heat insulating member 217, the mounting channel 217d and the third channel 217c3 are respectively located at two ends of the spacing boss 217e in the length direction, and the capillary 203b and the air return pipe 203a are disposed around the spacing boss 217e and then extend toward the mounting chamber 213.

In this embodiment, the first channel 217c1 and the second channel 217c2 are respectively located at the upper side and the lower side of the partition boss 217e, and the air return pipe 203a and the capillary 203b are both arranged around the partition boss 217e, so that the length of the air return pipe is increased to the maximum in the limited space of the unit 201. The mounting channel 217d and the third channel 217c3 are respectively located at both ends of the spacing boss 217e in the length direction, thereby reducing heat exchange between the evaporation chamber 211 and the bracket of the mounting chamber 213.

Further, the heat preservation bottom wall 217a is arranged obliquely along the front-back direction, and a first water drainage hole 217a1 is arranged on the lower side of the horizontal height of the heat preservation bottom wall 217 a.

In this embodiment, since the heat insulating bottom wall 217a is inclined in the front-rear direction, the flow of the defrosting water generated by the evaporator 209 to the lower part is facilitated, and the defrosting water is discharged through the first water discharge hole 217a 1.

Further, the base 201 further comprises a cover 223 covering the base 215 and the outer side of the heat preservation part 217, an air outlet 223d and an air return port 223e communicating with the evaporation chamber 211 are formed on the cover 223, and the vertical height of the air outlet 223d is greater than that of the air return port 223 e.

In this embodiment, the cover 223 covers the outer side of the heat preservation component 217, so as to reduce the outward loss of cold energy of the evaporation chamber 211. The air outlet 223d and the air return port 223e are at different heights and can be matched and butted with the air inlet 115 and the air return port 117.

Further, the frame 201 further includes the heat insulating element 225 that locates the top of heat preservation lateral wall 217b and with the internal surface assorted of housing 223, heat insulating element 225 covers the top of evaporimeter 209 and along heat preservation diapire 217a parallel arrangement, heat insulating element 225 and heat preservation diapire 217a are formed with the evaporation wind channel 211a who communicates gas outlet 223d and return air inlet 223e before, evaporation wind channel 211a is from return air inlet 223e to the vertical height of gas outlet 223d crescent.

In this embodiment, the heat insulating member 225 can reduce the amount of cold lost from the evaporation chamber 211. The two ends of the evaporation air duct 211a are respectively connected to the air outlet 223d and the air return 223 e.

Referring to fig. 18, further, the pipe 203 includes an outlet pipe 203c for communicating the compressor 205 with the condenser 207, the base 201 includes a base 215 for mounting the compressor 205 and the condenser 207, and a heat conducting bracket 227 fixed on the base 215, a water receiving area 215a is formed on the base 215, and the heat conducting bracket 227 is disposed in the water receiving area 215a and connected to the outlet pipe 203 c.

In this embodiment, the heat conducting bracket 227 is disposed on the base 215, and the heat conducting bracket 227 is located in the water receiving area 215a, so that the defrosting water generated by the refrigerating unit 20 or the condensed water generated in the storage compartment 101 is collected in the water receiving area 215a, and when the defrosting water or the condensed water is evaporated in the water receiving area 215a, the heat is absorbed, so as to cool the heat conducting bracket 227 and the air outlet pipe 203c installed on the heat conducting bracket 227.

Further, the outlet pipe 203c has a first pipe 203c1 connected to the compressor 205, a second pipe 203c2 connected to the condenser 207, and a third pipe 203c3 connected between the first pipe 203c1 and the second pipe 203c2 and meandering back and forth in a horizontal plane, and the heat conductive bracket 227 extends along a length of the third pipe 203c 3.

In this embodiment, the third tube 203c3 is bent and wound in a reciprocating manner in the horizontal plane, so that the length of the outlet tube 203c is increased to the maximum in the limited space of the unit 201. The heat conducting supporter 227 extends along the length direction of the third tube 203c3, and the contact area between the heat conducting supporter 227 and the outlet tube 203c is increased to increase the heat conducting area.

Further, the base 215 has a bottom platform 215b, a bottom box wall 215c formed by bending and extending along a side edge of the bottom platform 215b, and a bottom partition 215d disposed on the bottom platform 215b and located between the third tube 203c3 and the compressor 205, the water receiving area 215a is formed in the bottom box wall 215c on a side of the bottom partition 215d facing away from the compressor 205, and the heat conducting bracket 227 is disposed on the bottom platform 215b and supported on the third tube 203c 3.

In this embodiment, the thermally conductive holder 227 is attached to the bottom stage 215b so as to transfer heat from the outlet pipe 203c to the bottom stage 215b and water accumulated on the bottom stage 215 b.

Referring to fig. 19, the condenser 207, the third tube 203c3 and the compressor 205 are further arranged in a row along the length direction of the base 215, the third tube 203c3 has a first tube 203c31 extending along the width direction of the base 215, a second tube 203c32 connecting the adjacent first tubes 203c31, and the heat-conducting bracket 227 is snap-connected to the first tube 203c31 and fixed on the bottom platform 215 b.

In this embodiment, the condenser 207, the third pipe 203c3, and the compressor 205 are arranged in the longitudinal direction of the base 215, so that the space on the base 215 is effectively utilized. The thermally conductive holder 227 is snap-fit to the first tube 203c31 to facilitate the attachment and detachment of the outlet tube 203 c. The first pipe 203c31 is fixed to the bottom platform 215b by a heat conducting bracket 227, and is prevented from shaking due to vibration generated by the compressor 205.

Further, the heat conducting bracket 227 has a heat conducting bottom plate 227a abutting against the bottom platform 215b, and a heat conducting side plate 227b formed by bending and extending along the side edge of the heat conducting bottom plate 227a, the heat conducting bottom plate 227a is provided with a heat conducting mounting hole 227a1 connected with the bottom platform 215b, and the top of the heat conducting side plate 227b is bent and extended to form a heat conducting clamping portion 227b1 matched with the first tube 203c 31.

In this embodiment, the heat conducting bottom plate 227a abuts against the bottom platform 215b, so as to increase the contact area between the heat conducting bottom plate 227a and the bottom platform 215b, and further increase the heat conducting area. The heat conducting clamping portion 227b1 covers the outer wall of the first tube 203c31, increasing the contact area between the two, and thus increasing the heat conducting area. The present invention preferably has heat conductive side plates 227b symmetrically disposed on both sides of the heat conductive bottom plate 227a, thereby facilitating manufacturing and installation.

Further, the condenser 207 is disposed in the water receiving area 215a and spaced apart from the bottom platform 215b, the base 201 further includes a condensing fan 219 disposed in the water receiving area 215a and located between the condenser 207 and the third pipe 203c3, and the condensing fan 219 is spaced apart from the bottom platform 215 b.

In this embodiment, there is a gap between the condenser 207 and the condensing fan 219 and the bottom platform 215b to maximize the surface area of the water collected in the water receiving area 215a, thereby accelerating the evaporation of the water in the water receiving area 215 a. Furthermore, the condenser 207 and the condensing fan 219 can also be cooled by evaporation of water in the water receiving area 215 a.

Further, the heat conducting bottom plate 227a is further provided with a heat conducting positioning hole 227a2 and a heat conducting opening 227a3, the heat conducting mounting holes 227a1, the heat conducting positioning holes 227a2 and the heat conducting opening 227a3 are arranged in a length direction of the heat conducting bottom plate 227a, and the bottom platform 215b is further provided with a bottom mounting hole 215b1 corresponding to the heat conducting mounting hole 227a1, a bottom positioning column 215b2 corresponding to the heat conducting positioning hole 227a2 and a bottom positioning column 215b3 corresponding to the heat conducting opening 227a3, so that the heat conducting bottom plate 227a is fixed on the bottom platform 215b in a limited manner.

In this embodiment, the heat-conducting positioning hole 227a2 is abutted with the bottom positioning post 215b2, so as to limit the front-back deviation of the heat-conducting bracket 227. The heat-conducting opening 227a3 is abutted against the bottom stopper 215b3, and thus the heat-conducting holder 227 is restricted from being displaced in the up-down direction and the left-right direction. Moreover, only one fixing member is needed for the single heat-conducting support 227, so that the fixing of the heat-conducting support 227 and the bottom platform 215b can be completed. In addition, the heat conducting support 227 of the invention adopts a bilateral symmetry design, thereby preventing reverse installation and being convenient for production.

Further, the base 201 further includes a heat preservation part 217 fixed above the base 215, the heat preservation part 217 has a heat preservation bottom wall 217a supported below the evaporator 209, the heat preservation bottom wall 217a is obliquely arranged along the front-back direction, a lower side of the horizontal height of the heat preservation bottom wall 217a is provided with a first drainage hole 217a1, the base 201 further includes a first drainage pipe 229 arranged below the heat preservation part 217, one end of the first drainage pipe 229 is communicated with the first drainage hole 217a1, and the other end of the first drainage pipe extends towards the water receiving area 215 a.

In this embodiment, since the heat insulating bottom wall 217a is inclined in the front-rear direction, the flow of the defrosting water generated by the evaporator is facilitated to a lower position, and the defrosting water is discharged through the first water discharge hole 217a 1. And the water in the first drain hole 217a1 is finally introduced into the water receiving area 215a through the first guide tube 229.

Further, a flow guide boss 215b4 is further disposed on the bottom platform 215b, and a drainage tube 215b41 connected with the first drainage tube 229 is disposed at the top of the flow guide boss 215b 4.

In this embodiment, the upper end surface of the diversion boss 215b4 is inclined, so that the water flow is finally guided into the water receiving area 215a when falling on the upper end. The drainage tube 215b41 is butted against the first drainage tube 229 by a snap-fit at the top, preventing the two from coming apart.

Referring to fig. 20, when the refrigeration unit 20 is disposed in the refrigeration equipment, the refrigeration equipment further includes a second flow guide pipe 50 disposed in the heat preservation cavity 107, the refrigeration unit 20 is disposed in the unit cabin 113, a second water drainage hole 103e is disposed at the bottom of the inner container 103, one end of the second flow guide pipe 50 is communicated with the second water drainage hole 103e, and the other end extends toward the water receiving area 215 a.

In this embodiment, a second drain hole 103e is disposed at the lowest portion of the inner container 103 to prevent the accumulation of condensed water in the storage compartment 101. Finally, the water in the second water discharge hole 103e is introduced into the water receiving area 215a through the second draft tube 50 and is finally evaporated by heating.

With reference to fig. 4, in the refrigeration unit 20, the base 201 includes a base 215 on which the condensing fan 219, the compressor 205, and the condenser 207 are mounted, a heat preservation member 217 fixed above the base 215 and on which the evaporator 209 is mounted, and a support assembly 231 disposed between the base 215 and the heat preservation member 217, the compressor 205, the condensing fan 219, and the condenser 207 are arranged in a row along a length direction of the evaporator 209, and the support assemblies 231 are disposed at intervals along the length direction of the heat preservation member 217.

In this embodiment, the compressor 205, the condensing fan 219, and the condenser 207 are arranged along the length direction of the evaporator 209, and are supported at the bottom of the evaporator 209 by the supporting components 231 arranged at intervals along the length direction of the heat insulating member 217, so that the occupied space of the refrigeration unit 20 is saved, and the structure is stable.

Referring to fig. 21, further, the supporting member 231 includes supporting pillars 231a connecting the base 215 and the insulating member 217, and the supporting pillars 231a are disposed at two sides of the insulating member 217 in the length direction.

In this embodiment, the two sides of the heat insulating member 217 in the length direction are supported and fixed by the supporting pillars 231a disposed on the two sides of the heat insulating member 217 in the length direction, so as to further enhance the stability of the internal structure of the refrigerating unit 20.

Further, the condensing fan 219 comprises a fan frame 219a fixed on the base 215 and a blade 219b arranged in the fan frame 219a, the supporting assembly 231 comprises a supporting platform 231b arranged at the top of the fan frame 219a, and the supporting platform 231b abuts against the lower end of the heat preservation member 217 and extends along the width direction of the heat preservation member 217.

In this embodiment, the supporting platform 231b extending along the width direction of the heat insulating member 217 can support and fix the two sides of the heat insulating member 217 in the width direction, thereby further enhancing the stability of the internal structure of the refrigeration unit 20. Moreover, by directly disposing the support platform 231b on the blower housing 219a, no new components need to be added, thereby saving production costs and also saving the internal space of the refrigeration unit 20.

As shown in fig. 22, further, the housing 201 further includes a cover 223 covering the base 215 and the outer side of the heat insulating member 217, a mounting cavity 213 is formed in the cover 223 and located between the heat insulating member 217 and the base 215, the wind turbine frame 219a has a frame 219a1 with a contour matching the cross section of the mounting cavity 213, a frame cover 219a2 disposed on the frame 219a1 and covering the outer side of the blade 219b, and the supporting platforms 231b are a first platform 219a3 and a second platform 219a4 disposed on the frame 219a1 and located on the front side and the rear side of the frame cover 219a 2.

In this embodiment, the first platform 219a3 and the second platform 219a4 are integrally formed with the frame 219a1, which is simple in structure and low in manufacturing cost.

Furthermore, the heat preservation part 217 is provided with a heat preservation bottom wall 217a located at the bottom of the heat preservation part 217, a heat preservation side wall 217b connected with the heat preservation bottom wall 217a and surrounding the periphery of the evaporator 209, the heat preservation bottom wall 217a is obliquely arranged along the front and back direction, and the evaporator 209 is arranged on the heat preservation bottom wall 217a and obliquely arranged along the heat preservation bottom wall 217 a.

In this embodiment, the evaporator 209 is disposed along the heat-insulating bottom wall 217a in an inclined manner, so as to further save the front and rear spaces of the refrigeration unit 20.

Further, a rack cover groove 217a2 matched with the rack cover 219a2 and a rack frame boss 217a3 abutted to the second platform 219a4 are arranged at the lower end of the heat-insulating bottom wall 217a, and the rack frame 219a1 located on one side of the second platform 219a4 extends to cover one side of the rack frame boss 217a 3.

In this embodiment, the arrangement of the frame cover groove 217a2 realizes the front-back direction limitation of the heat preservation component 217 and the fan frame 219a, and also realizes the positioning and installation between the two. The arrangement of the frame bosses 217a3 avoids the heat preservation component 217 from shifting to the left and limiting, and also realizes positioning and installation between the heat preservation component 217 and the heat preservation component.

Furthermore, the lower end of the heat-insulating bottom wall 217a is provided with a compressor groove 217a4 located above the compressor 205 and a condensation boss 217a5 located above the condenser 207, and the end surface of the condensation boss 217a5 close to one side of the condenser 207 is arranged along the horizontal direction.

In this embodiment, the arrangement of the pressing grooves 217a4 and the condensation bosses 217a5 can avoid the situation that the front and the back are reversely installed when an operator installs the heat preservation component 217. The condensation projection 217a5 is provided to prevent the condenser 207 from overheating and affecting the normal operation of the evaporator 209.

Further, the base 201 further includes a heat conducting support 227 disposed on the base 215 and located between the compressor 205 and the condensing fan 219, the pipeline 203 includes an air outlet pipe 203c communicating the compressor 205 and the condenser 207, and the air outlet pipe 203c is disposed on the heat conducting support 227.

In this embodiment, the heat generated by the outlet 203c is transferred to the base 215 by the heat conducting support 227 for heat dissipation.

Further, the pipeline 203 comprises an air return pipe 203a communicating the evaporator 209 and the compressor 205, a heat preservation channel 217c is arranged on the outer side of the heat preservation side wall 217b, and the air return pipe 203a extends towards the lower side of the heat preservation bottom wall 217a after being arranged along the heat preservation channel 217 c.

In this embodiment, the heat preservation channel 217c can extend the length of the air return pipe 203a, and preserve heat of the air return pipe 203a, thereby preventing condensation from being generated on the air return pipe 203 a.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. A refrigeration appliance comprising:

the refrigerator comprises a cabinet body and a storage box, wherein the cabinet body is provided with an inner container forming a storage chamber, a shell, a heat preservation cavity arranged between the inner container and the shell and a unit cabin formed on the lower side of the cabinet body;

the refrigerating unit is arranged in the unit bin and is provided with a base, and a compressor, a condenser and an evaporator which are arranged on the base and connected through pipelines, wherein the base is provided with an installation cavity for accommodating the compressor and the condenser;

the novel air conditioner is characterized in that the lower side of the inner container is of a step-shaped structure protruding into the storage compartment, the unit bin is located behind and below the step-shaped structure and is provided with a first cavity located on the front side and a second cavity located on the rear side of the first cavity, the vertical height of the first cavity is smaller than that of the second cavity, a first heat exchange port and a second heat exchange port which are communicated with the installation cavity are formed in the machine base, the first heat exchange port is arranged in an open mode towards the first cavity, and the second heat exchange port is arranged in an open mode towards the second cavity.

2. The refrigeration appliance according to claim 1, wherein said inner container has a bottom wall disposed at the bottom thereof in a stepped configuration, and said outer shell comprises a top shell, two side shells, a rear shell, and a bottom shell corresponding to the bottom wall structure, said bottom shell having a bottom shell upper wall formed at the top of the housing, and a bottom shell connecting body connected to the front end of the bottom shell upper wall, the vertical height of said bottom shell connecting body gradually decreasing from the rear toward the front, and said housing is disposed between the bottom shell upper wall, the bottom shell connecting body, and the two side shells.

3. The refrigeration unit of claim 2 wherein said bottom shell connector has a first bottom shell connecting wall at the front side, said first bottom shell connecting wall having a vertical height that decreases from the rear to the front, said first cavity being located between the first shell connecting wall and the two side shells.

4. The refrigeration unit of claim 3 wherein said bottom housing further has a bottom wall connected to a front end of the bottom shell connector, said refrigeration unit further comprising a riser assembly connecting the bottom wall and the two side housings, said riser assembly defining a first heat dissipation channel communicating with the first cavity.

5. The refrigeration apparatus as claimed in claim 2, wherein said housing includes a base for mounting the compressor and the condenser, a heat insulating member fixed above the base, and a housing for covering the base and the heat insulating member, said mounting chamber being formed in the housing between the heat insulating member and the base, said housing having a front housing wall and a rear housing wall disposed opposite to each other in the front-rear direction, said first heat exchanging port being provided in the front housing wall, and said second heat exchanging port being provided in the rear housing wall.

6. The refrigeration appliance according to claim 5, wherein the refrigeration unit further comprises a condensing fan disposed on the base, the compressor, the condensing fan and the condenser are arranged along a length direction of the base, the installation chamber has an air outlet chamber located on an air exhaust side of the condensing fan and an air inlet chamber located on an air suction side of the condensing fan, the first heat exchange port comprises a first heat exchange outlet disposed on a front side of the air outlet chamber, and the second heat exchange port comprises a first heat exchange inlet disposed on a rear side of the air inlet chamber.

7. The refrigeration appliance according to claim 6 wherein said first heat exchange port further comprises a second heat exchange inlet disposed on a front side of said air intake chamber and said second heat exchange port further comprises a second heat exchange outlet disposed on a rear side of said air outlet chamber.

8. The refrigeration unit of claim 6 wherein said enclosure further comprises a left enclosure wall and a right enclosure wall disposed opposite one another along the length of said base, said left enclosure wall having a third heat exchange port disposed therein, said right enclosure wall having a fourth heat exchange port disposed therein, said third heat exchange port and said fourth heat exchange port both being disposed open to said second cavity.

9. The refrigeration apparatus as claimed in claim 8, wherein the two side housings are correspondingly provided with a first heat dissipation hole communicated with the second cavity and opposite to the third heat exchange port, and a second heat dissipation hole communicated with the second cavity and opposite to the fourth heat exchange port, and the axes of the first heat dissipation hole and the second heat dissipation hole are arranged in a non-coincident manner.

10. The refrigerating apparatus as claimed in claim 2, wherein said cabinet body is formed with an air inlet and an air return opening for communicating said unit compartment and said storage compartment, said air inlet is disposed through an upper wall of said bottom case, and said air return opening is disposed through a connecting body of said bottom case.

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