WO2023011133A1

WO2023011133A1 - Refrigeration apparatus

Info

Publication number: WO2023011133A1
Application number: PCT/CN2022/105741
Authority: WO
Inventors: 任巧丽; 侯代民; 徐磊; 李大伟; 高秀森; 尚鑫; 吕伟
Original assignee: 青岛海尔特种电冰柜有限公司; 海尔智家股份有限公司
Priority date: 2021-08-05
Filing date: 2022-07-14
Publication date: 2023-02-09
Also published as: CN115704619A; CN216557837U; WO2023011132A1; CN216557832U; CN216557834U; CN216557835U

Abstract

Provided in the present application is a refrigeration apparatus, comprising: a cabinet body, the cabinet body being provided with an inner container, which forms a storage compartment, a housing, a thermal insulation cavity, which is arranged between the inner container and the housing, and a unit bin, which is formed on a lower side of the cabinet body; a refrigerating unit arranged in the unit bin and provided with a base, and a compressor, a condenser and an evaporator, which are arranged on the base and connected to each other by means of pipelines; and a lifting assembly supported at the bottom of the base and fixedly connected to the cabinet body. An air inlet and an air return port which are in communication with the unit bin and the storage compartment are formed in the cabinet body, and a sealing positioning groove surrounding outer sides of the air inlet and the air return port is formed in an end surface, which faces the unit bin, of the cabinet body; a sealing member protruding out of an outer surface of the base is arranged on the base; after the base is mounted in the unit bin, under the action of the lifting assembly, the sealing member abuts against the sealing positioning groove, such that the base is limited in the unit bin and is in sealed communication with the storage compartment; and the base is accurate butt-jointed with the unit bin to realize sealed connection.

Description

refrigeration equipment

technical field

The utility model relates to the technical field of refrigeration equipment, in particular to a refrigeration equipment.

Background technique

Existing refrigeration equipment is divided into direct cooling type and air cooling type according to different cooling methods. For air-cooled refrigeration equipment, the unit compartment is usually installed at the bottom of the cabinet to install components such as compressors and condensers, and the inner tank in the cabinet is usually equipped with air ducts for air supply. And because components such as compressor and condenser are installed in the machine base, when the machine base is installed into the unit compartment through the lifting assembly, they cannot be positioned accurately with each other, so that the airtight connection between the machine base and the storage compartment cannot be realized.

Contents of the invention

The purpose of the utility model is to provide a refrigeration device which facilitates the docking of the base and the unit compartment.

In order to achieve one of the purposes of the above invention, one embodiment of the utility model provides a refrigeration device, including:

A cabinet body, the cabinet body has an inner tank forming a storage compartment, an outer shell, a thermal insulation cavity arranged between the inner tank and the outer shell, and a unit compartment formed on the lower side of the cabinet body;

The refrigerating unit is arranged in the unit compartment, and has a machine base, a compressor, a condenser, and an evaporator arranged on the machine base and connected by pipelines;

The lifting component is supported on the bottom of the base and fixedly connected to the cabinet;

The cabinet body is formed with an air inlet and an air return port connecting the unit compartment and the storage compartment, and a sealing positioning groove surrounding the outside of the air inlet and the air return port is formed on the end face facing the unit compartment. There is a seal protruding from its outer surface. After the machine base is installed in the unit compartment, under the action of the lifting component, the seal abuts against the sealing positioning groove so that the machine base is limited in the unit compartment And seal the connected storage compartment.

As a further improvement of an embodiment of the present utility model, the inner tank has a bottom wall located at its bottom and arranged in a stepped shape, the outer shell includes a bottom shell corresponding to the structure of the bottom wall, and the bottom shell has a bottom shell formed on The upper wall of the bottom shell on the top of the unit compartment, the lower wall of the bottom shell located on the front side of the unit compartment and lower than the upper wall of the bottom shell, the bottom shell connecting body connecting the upper wall of the bottom shell and the lower wall of the bottom shell, and the air inlet runs through the bottom shell The upper wall is set, and the air return port is set through the connecting body of the bottom case.

As a further improvement of an embodiment of the present invention, the bottom shell is provided with an opening through the upper wall of the bottom shell and the connecting body of the bottom shell, and the shell also includes a tuyere plate arranged on the opening, and the sealing The positioning groove is formed on the tuyere plate.

As a further improvement of an embodiment of the present invention, the sealing positioning groove is set as a single closed ring structure, and the projections of the aforementioned air inlet and return air outlet all fall inside the ring structure.

As a further improvement of an embodiment of the present utility model, the sealing positioning groove is concave toward the side away from the machine base and has a circular arc-shaped cross section, and the sealing member has a first sealing wall matching the cross section of the sealing positioning groove , the arc radius of the first sealing wall is smaller than the groove radius of the sealing positioning groove.

As a further improvement of an embodiment of the present utility model, the machine base includes a base, a casing arranged above the base and matched with the bottom shell, and a seal corresponding to the sealing positioning groove is provided on the upper surface of the casing. The installation groove, the seal installation groove is recessed toward the side away from the bottom shell and has a planar cross-section, the seal also has a second seal wall connected to the first seal wall and bonded in the seal installation groove, forming The extrusion cavity is sealed between the first sealing wall and the second sealing wall, the first sealing wall and the second sealing wall are connected, and the sealing connection wall passing through the sealing extrusion cavity is formed.

As a further improvement of an embodiment of the present invention, the bottom wall is formed with an opening for exposing the air inlet and return air to the storage compartment, and the bottom wall includes a flanged wall formed by bending and extending from the side edge of the opening , the flanged wall is bonded to the tuyere plate to seal the connection opening and the tuyere plate.

As a further improvement of an embodiment of the present utility model, the flanged wall includes a first flange formed by bending and extending from the side edge of the opening toward the tuyere plate, and a second flange formed by bending and extending from the edge of the first flange, A positioning groove corresponding to the second flange is provided on a side of the tuyere plate close to the bottom wall, and the second flange is bonded in the positioning groove.

As a further improvement of an embodiment of the present utility model, the inner tank also has a top wall, a rear wall and two side walls opposite to the bottom wall, and the bottom wall includes a first bottom wall, a second Two bottom walls and a connecting wall, the connecting wall has a first wall connecting the first bottom wall, a second wall connecting the first wall and the second bottom wall, and the second wall is forward from the front end of the second bottom wall And extend downwards obliquely, the air inlet is set through the second bottom wall, and the air return opening is set through the second wall.

As a further improvement of an embodiment of the present invention, the tuyere plate includes a first plate corresponding to the second bottom wall, a second plate connected to the first plate and corresponding to the second wall, and the air inlet is located at The first board, the air return port is arranged on the second board.

As a further improvement of an embodiment of the present invention, the base has an evaporation chamber for accommodating the evaporator, and the cover has a first cover wall located on the top and corresponding to the first plate, connected to the first cover wall and the second cover wall corresponding to the second plate, the first cover wall is provided with an air outlet that communicates with the evaporation chamber and corresponds to the air inlet, and the second cover wall is provided with an air outlet that communicates with the evaporation chamber And for the air return port corresponding to the air return port, the sealing installation groove surrounds the outside of the air outlet and the air return port.

Compared with the prior art, in the embodiment of the present utility model, after the machine base is installed in the unit compartment through the lifting assembly, the sealing member protruding from the outer surface is used to position and abut against the sealing positioning groove, so as to realize the connection between the machine base and the unit compartment. Accurate docking, so as to limit the displacement of the machine base in the unit compartment, and realize the sealed connection between the machine base and the storage compartment.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a refrigeration device in a preferred embodiment of the present invention;

Fig. 2 is an exploded schematic diagram of another viewing angle of the refrigeration equipment in Fig. 1, wherein the refrigeration unit is located outside the unit compartment;

Fig. 3 is a sectional view at A-A place in Fig. 2;

Fig. 4 is an exploded schematic diagram of the refrigerating unit in Fig. 2;

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

Fig. 6 is a sectional view at B-B place among Fig. 5;

Fig. 7 is a sectional view at C-C place among Fig. 1;

Fig. 8 is a schematic diagram of a partially enlarged view in Fig. 7;

Fig. 9 is an exploded schematic diagram of the junction of the refrigeration unit and the tuyere plate in Fig. 2;

Fig. 10 is a sectional view at D-D in Fig. 9;

Fig. 11 is an exploded view of the junction between the liner and the tuyere plate;

Fig. 12 is a three-dimensional schematic diagram of the casing in the refrigeration unit;

Fig. 13 is a three-dimensional schematic diagram of the lifting assembly in Fig. 1, wherein the turnover plate is in a raised state;

Fig. 14 is a three-dimensional schematic diagram of the lifting assembly in Fig. 1, wherein the flip plate is in a storage state;

Fig. 15 is a three-dimensional schematic diagram of the refrigeration unit in Fig. 1 when it is placed in the lifting assembly, wherein the refrigeration unit is in the unit compartment, and the flip plate is in a raised state;

Fig. 16 is a sectional view at E-E place among Fig. 9;

Fig. 17 is an exploded schematic diagram of the evaporator and heat preservation parts in the refrigeration unit;

Fig. 18 is a three-dimensional schematic diagram of the base in the refrigeration unit;

Fig. 19 is a partially enlarged schematic diagram in Fig. 18;

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

Fig. 21 is a three-dimensional schematic diagram when the heat preservation component in the refrigeration unit is installed on the base;

Fig. 22 is an exploded schematic view of the fan frame and heat preservation parts in the refrigerating unit.

Detailed ways

The utility model will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and the structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present utility model.

It should be understood that terms such as "upper", "lower", "outer", "inner", etc. used herein to indicate relative spatial positions are for convenience of description to describe the relative position of a unit or feature as shown in the drawings. A relationship to another element or feature. The terms of spatial relative position 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. For example, in this utility model, for the convenience of description, when the refrigeration equipment is in normal use, the direction facing the ground is downward, and the direction away from the ground is upward; the direction parallel to the ground is horizontal, and the direction perpendicular to the ground is Vertical direction; the side closer to the user is the front side, and the side farther away from the user is the rear side.

Referring to Fig. 1 to Fig. 22, a kind of refrigerating equipment provided by the preferred embodiment of the present utility model can be set as a variety of refrigerating equipment such as refrigerators, vertical refrigerators, wine cabinets, freezers, freezers, etc., especially suitable for vertical Freezer. Moreover, the refrigeration unit 20 in the refrigeration equipment can also be replaced as a whole, which is suitable for quick replacement and maintenance in commercial scenarios.

Referring to Fig. 1 to Fig. 3, a kind of refrigerating equipment comprises a cabinet body 10, and the cabinet body 10 has an inner tank 103 forming a storage compartment 101, an outer shell 105, and an inner tank 103 and an outer shell 105 arranged between the inner tank 103 and the outer shell 105 Insulation cavity 107, the lower side of the inner liner 103 is in the shape of a step protruding into the storage compartment 101, so that the storage compartment 101 is formed with a first space 109 located on the lower side and a first space located in the first space 109. For the second space 111 on the upper side, the front-to-back depth of the first space 109 is smaller than the front-to-back depth of the second space 111 .

With reference to FIG. 3 , in the present embodiment, the storage compartment 101 is divided into a first space 109 and a second space 111 adjacent up and down because the bottom of the inner container 103 is set in a stepped shape, and the first space 109 and the second space 111 are adjacent to each other. The second space 111 covers the front side of the cabinet body 10 together, making full use of the upper and lower spaces of the refrigeration equipment for storage, improving the utilization rate of the storage compartment 101 and improving user experience.

In addition, a door (not shown in the figure) for closing the storage compartment 101 may be provided on the cabinet body 10 later, and the door body at this time can cover the upper and lower ends of the cabinet body 10 . Moreover, from the front side of the refrigeration equipment, users can see that there are no other components such as cooling vents except for the door that penetrates up and down, which improves the overall visual experience of the refrigeration equipment.

Wherein, the cabinet body 10 is further formed with a unit compartment 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 compartment 113 . Since the inner tank 103 is arranged in a stepped shape, the first space 109 and the unit compartment 113 can be arranged in front and rear relative to each other, so as to ensure that the front opening of the inner tank 103 covers the front end of the outer shell 105 to the greatest extent, and at the same time meet the installation requirements of the refrigeration unit 20 .

Further, as shown in FIG. 4 , the refrigeration unit 20 has a machine base 201 , a compressor 205 arranged on the machine base 201 and connected through a pipeline 203 , a condenser 207 , and an evaporator 209 . In this embodiment, the compressor 205, the condenser 207, the evaporator 209, etc. are integrated into the machine base 201. When a problem occurs and needs to be repaired or replaced, it is only necessary to dismantle the machine base 201 as a whole and replace it without dismantling the refrigeration equipment. Overall removal for maintenance.

Specifically, the cabinet body 10 is formed with an air inlet 115 and a return air outlet 117 communicating with the unit compartment 113 and the storage compartment 101, the base 201 has an evaporation chamber 211 for accommodating an evaporator 209, and the evaporation The chamber 211 communicates with the storage compartment 101 through the air inlet 115 and the air return 117 . In this embodiment, the cold generated by the evaporator 209 is transported to the storage compartment 101 through the air inlet 115, and the heat in the storage compartment 101 is transported to the evaporator 209 through the air return port 117 to continue cooling down, thereby forming air cooling. type refrigeration equipment.

Continuing with reference to FIG. 3 , further, the air inlet 115 and the air return port 117 are placed on different planes, and the air inlet 115 is open to the second space 111, and the air return 117 is open to the first space 109. . In this embodiment, the air inlet 115 is opened toward the second space 111 , and the air return port 117 is opened toward the first space 109 , so that the cooling air of the refrigeration equipment can circulate and cover the first space 109 and the second space 111 . Moreover, the air inlet 115 and the return air outlet 117 are placed on different planes, which can effectively prevent the cold energy entering the storage compartment 101 from being sucked into the evaporation chamber 211 without sufficient heat exchange, thereby replacing the refrigeration effect of the refrigeration equipment.

Referring to Figure 5 and Figure 6, specifically, the liner 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 stepped set, and have a first bottom wall 103b1 on the front side, a second bottom wall 103b2 on the 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 Connected by a connecting wall 103b3, the unit compartment 113 is located between the first bottom wall 103b1, the second bottom wall 103b2, the connecting wall 103b3 and the two side walls 103d, and the air inlet 115 passes through the second bottom wall 103b2 to communicate with the second The space 111 , the air return port 117 passes through the connecting wall 103b3 and communicates 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 103b. Wherein, the first bottom wall 103b1 and the second bottom wall 103b2 are preferably arranged to be parallel to each other. Moreover, since the air inlet 115 penetrates the second bottom wall 103b2 and the return air outlet 117 penetrates the connection wall 103b3, the return air outlet 117 is located below the air inlet 115, and the interior of the storage compartment 101 is fully cooled.

Specifically, the connecting wall 103b3 has a first wall 103b31 connecting the first bottom wall 103b1, a second wall 103b32 connecting the first wall 103b31 and the second bottom wall 103b2, and the second wall 103b32 is separated from the second bottom wall 103b2. The front end of the front end extends obliquely downwards, and the air return port 117 is disposed through the second wall 103b32. In this embodiment, the air return port 117 is set through the second wall 103b32, which not only satisfies the requirement of air circulation to cover the first space 109 and the second space 111, but also ensures the smooth circulation of the cooling air formed by the intake air and the return air. Of course, the air return port 117 can also be installed through the first wall 103b31, or connected to walls with other inclination angles on the wall 103b3, as long as the air circulation can cover the first space 109 and the second space 111.

Further, the shell 105 includes a top shell 105a, two side shells 105b, a rear shell 105c, and a bottom shell 105d respectively corresponding to the walls of the inner tank 103, and the air inlet 115 and the air return port 117 form On the bottom shell 105d, the bottom shell 105d is sealed and connected with the bottom wall 103b of the inner tank 103, and the bottom wall 103b of the inner tank 103 is formed with an air inlet 115 and an air return port 117 exposed to the inside of the inner tank 103 The opening 103b4 covers the air inlet 115 and the air return 117 .

In this embodiment, in order to facilitate the manufacture of the inner tank 103, an opening 103b4 covering the air inlet 115 and the air return port 117 is provided on the bottom wall 103b, instead of opening two separate openings for the air inlet 115 and the air return port 117 respectively. Moreover, it is also convenient to connect the air inlet 115 and the return air outlet 117 on the cabinet body 10 with the liner 103 later.

With reference to FIG. 7 , further, the evaporation chamber 211 forms an evaporation air duct 211a that communicates with the air inlet 115 and the air return port 117, and the vertical height of the evaporation air duct 211a from the air return port 117 to the air inlet 115 is Gradually increase. In this embodiment, due to the oblique setting of the evaporation air duct 211a, it can be connected with the air circulation formed in the storage compartment 101 . Moreover, the airflow angle between the evaporation air duct 211a formed in the machine base 201 and the airflow direction of the air inlet 115 and the return airport 117 in the storage compartment 101 is relatively large, and the resistance encountered when the airflow turns is small, which improves the refrigeration performance of the refrigeration equipment. efficiency.

Further, the evaporator 209 is arranged obliquely from front to back and upward in the evaporation air duct 211a. In this embodiment, since the evaporator 209 is arranged obliquely from front to back and upward along the evaporation air duct 211a, the heat dissipation volume of the evaporator 209 is larger at the same front and rear distance, and the evaporator 209 extends on the air path, and the air flow and the evaporator 209 The heat exchange time is longer and the heat exchange effect is good.

Further, the cabinet body 10 also includes an air duct cover plate 119 arranged inside the inner container 103, and the air duct cover plate 119 divides the second space 111 of the storage compartment 101 into front and rear compartments. The space 111a and the cooling air duct 111b, the air inlet 115 is connected to the cooling air duct 111b, and the refrigeration equipment further includes an evaporating fan 30 disposed in the cooling air duct 111b.

In this embodiment, in order to reduce the space occupied by the refrigerating unit 20, the evaporating fan 30 for discharging the internal cooling capacity of the evaporating chamber 211 can be arranged on the inner tank 103, thereby increasing the front and rear depths of the first space 109 or the second space 111's up and down height. Moreover, setting the evaporating fan 30 in the cooling air channel 111b of the inner tank 103 can also reduce the vibration of the refrigerating unit 20 when the evaporating fan 30 is working. In addition, the electric control box 60 for controlling the entire refrigeration unit 20 is also arranged in the unit compartment 113 , and the refrigeration unit 20 is connected to the electric control box 60 through terminal wires.

As shown in FIG. 8 , specifically, the evaporating fan 30 is a centrifugal fan 30a arranged near the air inlet 115, and the cooling air channel 111b includes a lower air channel 111b1 for accommodating the centrifugal fan 30a and an upper side of the centrifugal fan 30a. The upper side air duct 111b2, the front and rear width of the lower side air duct 111b1 is larger than the front and rear width of the upper side air duct 111b2, the centrifugal fan 30a is fixed on the rear wall 103c of the inner tank 103, and has a forward communication with the lower side wind The air suction port 30a1 of the channel 111b1 communicates upward with the air exhaust port 30a2 of the upper air channel 111b2.

In this embodiment, the evaporator fan 30 adopts a centrifugal fan 30a with a forward wind and an upper air outlet, and is arranged on the rear wall 103c of the inner tank 103, that is, the rotation axis of the centrifugal fan 30a is arranged parallel to the front and rear directions, thereby improving the front and rear of the second space 111. Space utilization. Moreover, the front-to-back width of the lower air duct 111b1 is greater than the front-to-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, thereby increasing the air flow from the upper air duct 111b2 to the upper air duct 111b2. The pressure of the airflow in the storage compartment 101 improves the cooling effect of the refrigeration equipment.

Further, the refrigerating equipment also includes a lifting assembly 40 arranged at the bottom of the cabinet body 10 to drive the machine base 201 to move vertically in the unit compartment 113 and communicate the evaporation chamber 211 with the storage compartment 101 . In this embodiment, the setting of the lifting assembly 40 can ensure that after the refrigeration unit 20 is placed in the unit compartment 113, the evaporation chamber 211 in the machine base 201 communicates with the storage compartment 101 and keeps sealed, so that the refrigeration unit 20 can be placed in the storage compartment 113. Cooling of the object room 101.

Continue to cooperate with reference to Figure 3 and Figure 7, further, the base 201 has an evaporation chamber 211 for accommodating the evaporator 209 and an installation chamber 213 for accommodating the compressor 205 and the condenser 207; the cabinet 10 also includes an air duct cover 119 arranged inside the inner tank 103, and the air duct cover 119 divides the storage compartment 101 into a storage space 111a and a cooling air duct 111b. An evaporating fan 30 is arranged in the channel 111b, and the cooling air channel 111b, the evaporating chamber 211 and the installation chamber 213 are arranged sequentially from top to bottom, and the storage compartment 101 and the evaporating chamber 211 are formed by The air inlet 115 on the cabinet body 10 communicates with the air return outlet 117 .

In this embodiment, since the cooling air passage 111b, the evaporation chamber 211 and the installation chamber 213 are arranged sequentially from top to bottom, and the evaporating fan 30 is arranged in the cooling air passage 111b, the cost of the refrigeration unit 20 can be saved. Occupying space improves the utilization rate of the front and rear space of the storage space 111a, and more items can be placed in the storage compartment 101, so as to improve user experience.

It should be noted that the storage space 111a here includes, but is not limited to, the set of the above-mentioned first space 109 and the second space 111 .

Continuing to refer to Fig. 8, specifically, the evaporator fan 30 is a centrifugal fan 30a arranged near the air inlet 115, and the cooling air channel 111b includes a lower side air channel 111b1 for accommodating the centrifugal fan 30a and a fan located on the centrifugal fan 30a. The front-to-back width of the lower side air duct 111b1 is larger than the front-to-back width of the upper side air duct 111b2. The centrifugal fan 30a is fixed on the rear wall 103c of the inner tank 103 and has a front-to-back lower side The air suction port 30a1 of the air channel 111b1 communicates upward with the air exhaust port 30a2 of the upper air channel 111b2.

In this embodiment, the cooling air channel 111b is arranged parallel to the rear side of the liner 103 along the vertical direction, so that the cooling air channel 111b and the evaporation chamber 211 form a vertically connected air channel, which reduces the airflow resistance and is beneficial to the centrifugal fan 30a. The cold energy in the evaporation chamber 211 is delivered to the storage compartment 101 .

Further, an evaporation air duct 211 a connecting the air inlet 115 and the return air opening 117 is formed in the evaporation chamber 211 , and the vertical height of the evaporation air duct 211 a gradually increases from the return air opening 117 to the air inlet 115 . In this embodiment, the evaporating air duct 211a is inclined along the front-to-back direction, and forms an included angle greater than 90° with the vertically arranged cooling air duct 111b, thereby increasing the time when the airflow enters the cooling air duct 111b from the evaporating air duct 211a The steering angle reduces the resistance when the airflow turns.

Specifically, the evaporating air duct 211a includes a main air duct 211a1 where the evaporator 209 is placed, a return air duct 211a2 connected to the front side of the main air duct 211a1 and docked with the return air port 117, and a return air duct 211a2 connected to the rear side of the main air duct 211a1 and connected to the air return port 117. The cooling air channel 111b is connected to the exhaust air channel 211a3, and the cooling air channel 111b is located directly above the exhaust air channel 211a3.

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°, which reduces the air flow in the evaporating air duct. The resistance when changing direction in 211a. In addition, the cooling air duct 111b is located directly above the exhaust air duct 211a3, which facilitates the connection between the evaporation air duct 211a and the cooling air duct 111b.

Further, the cooling air channel 111b also includes a guide air channel 111b3 connecting the lower side air channel 111b1 and the exhaust air channel 211a3, the guide air channel 111b3 is arranged obliquely along the front and rear direction, and the air inlet 115 is located at the air suction port Front side of 30a1. In this embodiment, since the air inlet 115 is located at the front side of the air suction port 30a1, the guide air duct 111b3 arranged obliquely along the front and rear direction can reduce the airflow resistance from the air inlet 115 into the air suction port 30a1.

Further, the lower air channel 111b1 has a fan cavity 111b11 for accommodating the centrifugal fan 30a, and a suction cavity 111b12 located in front of the fan cavity 111b11, and the upper air channel 111b2 has a suction cavity 111b12 located on the upper side of the air outlet 30a2. The discharge cavity 111b21, the discharge cavity 111b22 located on the upper side of the discharge cavity 111b21, the suction cavity 111b12 is located on the front side of the suction port 30a1 and communicates with the discharge cavity 111b21 through the centrifugal fan 30a, the discharge cavity 111b21 The width of the cavity 111b21 gradually decreases from the air outlet 30a2 toward the front and back of the discharge cavity 111b22.

In this embodiment, after the centrifugal fan 30a rotates, a negative pressure is generated in the suction cavity 111b12, thereby sucking the evaporation chamber 211 into the cooling air channel 111b, and discharging it into the upper air channel 11b2 from the air outlet 30a2. The front and back width of the discharge chamber 111b21 gradually decreases from the air outlet 30a2 to the discharge chamber 111b22, so that a pressure difference is generated between the air outlet 30a2 and the discharge chamber 111b22, thereby increasing the discharge from the upper air duct 111b2 to the storage. The pressure of the airflow in the compartment 101 improves the cooling effect of the refrigeration equipment.

Continuing to cooperate with reference to Figure 4, further, the base 201 includes a base 215, a thermal insulation component 217 fixed above the base 215, the evaporation chamber 211 is formed in the thermal insulation component 217, and the installation cavity 213 is formed Between the thermal insulation component 217 and the base 215 , the evaporation chamber 211 and the installation chamber 213 are arranged adjacent to each other up and down. In this embodiment, . The evaporation chamber 211 is formed by using the thermal insulation member 217 , and the heat generated in the installation chamber 23 is restricted from entering the evaporation chamber 211 . Moreover, the evaporation chamber 211 and the installation chamber 213 are disposed adjacent to each other up and down, so that the structure of the refrigerating unit 20 is more compact, thereby increasing the usable space of the storage compartment 101 .

Further, the evaporator 209 is arranged on the heat preservation component 217, and is arranged obliquely along the main air duct 211a1. In this embodiment, the evaporator 209 is arranged obliquely along the main air duct 211 a 1 , thereby saving the front and rear space occupied by the evaporator 209 , thereby improving the utilization rate of the front and rear space of the storage compartment 101 .

Further, the refrigeration unit 20 also includes a condensation fan 219 arranged on the base 215, the condenser 207 and the compressor 205 are arranged on the base 215 opposite to each other, and the condensation fan 219 is arranged on the base 215 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 along the left and right directions, thereby saving the front and rear width of the base 215, thereby reducing the front and rear occupied space of the refrigeration unit 20, thereby being able to improve The front and rear space utilization ratio of the storage compartment 101.

Specifically, the evaporator 209 extends along the width direction of the cabinet body 10 and is placed 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 body 10 , so that the evaporator 209 can maximize the space occupied by the front and back of the evaporator 209 while satisfying cooling needs. 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 body 10, so that the structure of the refrigeration unit 20 is more compact, and the front and rear occupied space of the refrigeration unit 20 is saved, thereby enabling The front and rear space utilization ratio of the storage compartment 101 is improved.

Continuing to refer to Fig. 3, further, the refrigeration equipment also includes a cabinet body 10 supported on the bottom of the base 201 and fixedly connected; the cabinet body 10 is formed with an air inlet 115 connecting the unit compartment 113 and the storage compartment 101 and the air return port 117, and a sealing positioning groove 121 surrounding the outside of the air inlet 115 and the air return port 117 is formed on the end face facing the unit compartment 113, and the base 201 is provided with a seal 221 protruding from its outer surface After the machine base 201 is installed in the unit compartment 113, under the action of the lifting assembly 40, the seal 221 abuts against the sealing positioning groove 121, so that the machine base 201 is limited in the unit compartment 113 and is sealed and communicated with the storage. Object room 101.

In this embodiment, after the machine base 201 is installed on the unit compartment 113 through the lifting assembly 40, the sealing member 221 protruding from the outer surface is used to position and abut against the sealing positioning groove 121, so as to realize the accurate docking of the machine base 201 and the unit compartment 113 , thereby restricting the displacement of the machine base 201 in the unit compartment 113 and realizing the sealed connection between the machine base 201 and the storage compartment 101 . Moreover, since the sealing positioning groove 121 surrounds the outside of the air inlet 115 and the air return port 117, after the machine base 201 is sealed and docked with the cabinet body 10, the air inlet 115 and the air return port 117 can be sealed and communicated with the storage compartment 101 and the inside of the machine base 201. The evaporation chamber 211.

Continuing to cooperate with further reference to FIG. 6 , the inner tank 103 has a bottom wall 103b located at the bottom thereof and arranged in a stepped shape, and the outer shell 105 includes a bottom shell 105d corresponding to the structure of the bottom wall 103b. The body 105d has a bottom casing upper wall 105d1 formed on the top of the unit compartment 113, a bottom casing lower wall 105d2 located at the front side of the unit compartment 113 and lower than the bottom casing upper wall 105d1, and a bottom casing upper wall 105d1 connected to the bottom casing lower wall 105d2. The bottom case connecting body 105d3, the air inlet 115 is set through the bottom case upper wall 105d1, and the air return port 117 is set through the bottom case connecting body 105d3.

In this embodiment, since the air inlet 115 and the air return port 117 run through different planes respectively, and the sealing positioning groove 121 covers the air inlet 115 and the air returning port 117, the sealing positioning groove 121 covers different planes, which can not only limit the movement of the base 201 along the horizontal The direction offset can also limit the offset of the machine base 201 in the vertical direction, thereby ensuring.

With reference to FIG. 9 , further, the bottom shell 105d is provided with an opening 105d4 passing through the upper wall 105d1 of the bottom shell and the connecting body 105d3 of the bottom shell. plate 105e, the sealing positioning groove 121 is formed on the tuyere plate 105e.

In this embodiment, in order to facilitate the manufacture of the housing 105, the opening 105d4 runs through the upper wall 105d1 of the bottom case and the connecting body 105d3 of the bottom case at the same time, so as to cover the air inlet 115 and the air return port 117, without the need for the upper wall 105d1 and the bottom of the bottom case. The shell connecting body 105d3 is provided with two corresponding openings, which also facilitates later docking. The tuyere plate 105e is set on the opening 105d4, and the sealing positioning groove 121 is set on the tuyere plate 105e, which not only saves the manufacturing cost, but also facilitates later maintenance. Moreover, both the air inlet 115 and the air return port 117 are disposed on the tuyere plate 105e, and the tuyere plate 105e can be dismantled or disassembled separately for replacement or cleaning later.

Specifically, the sealing positioning groove 121 is set as a single closed ring structure, and the projections of the aforementioned air inlet 115 and the air return port 117 all fall inside the ring structure. In this embodiment, the sealing positioning groove 121 with a single annular structure has a simple structure, which is convenient for manufacture and production. Of course, the sealing positioning groove 121 can also cover the outside of the air inlet 115 and the air return outlet 117 at the same time, such as forming an "8" shape.

With reference to FIG. 10 , further, the seal positioning groove 121 is recessed toward the side away from the machine base 201 and has a circular arc-shaped cross-section. The seal 221 has a first A sealing wall 221 a, the arc radius of the first sealing wall 221 a is smaller than the groove radius of the sealing positioning groove 121 .

In this embodiment, when the lifting assembly 40 drives the machine base 201 to rise in the unit compartment 113 , the sealing member 221 abuts against the sealing positioning groove 121 and produces elastic deformation, so that the machine base 201 in the area of the sealing positioning groove 121 is sealed. Moreover, since the arc radius of the first sealing wall 221 a is smaller than the groove radius of the sealing positioning groove 121 , the first sealing wall 221 a is more fitted to the sealing positioning groove 121 after being deformed by force, and the sealing effect is better.

Specifically, the machine base 201 includes a base 215, a cover 223 arranged above the base 215 and matched with the bottom shell 105d, and the upper surface of the cover 223 is provided with a sealing installation corresponding to the sealing positioning groove 121. Groove 223a, the seal installation groove 223a is concave toward the side away from the bottom shell 105d and has a planar cross-section. Two sealing walls 221b, a sealing extrusion chamber 221c formed between the first sealing wall 221a and the second sealing wall 221b, a sealing connection wall 221d connecting the first sealing wall 221a and the second sealing wall 221b and penetrating the sealing extrusion chamber 221c .

In this embodiment, the second sealing wall 221b is set as a planar structure matching the sealing installation groove 223a, so that the bonding between the two is more reliable after connection. The arrangement of the sealing extrusion cavity 221c and the sealing connection wall 221d enables the sealing member 221 to recover and maintain the shape before deformation after detaching from the sealing positioning groove 121 .

Referring to FIG. 11 , further, the bottom wall 103b is formed with an opening 103b4 for exposing the air inlet 115 and the return air outlet 117 to the storage compartment 101, and the bottom wall 103b includes a side edge bend from the opening 103b4. The flanging wall 103b5 formed by folding and extending is bonded to the tuyere plate 105e to seal the connection between the opening 103b4 and the tuyere plate 105e.

In this embodiment, the flanging wall 103b5 formed by bending and extending along the side edge of the opening 103b4 and the tuyere plate 105e are matched and docked with each other, and fixed together by bonding, which is convenient for installation, and at the same time improves the inner tank 103 and the tuyere plate 105e. sealing performance. Moreover, the flanged wall 103b5 forms a thermal insulation cavity 107 for setting foam material between the bottom wall 103b and the tuyere plate 105e.

Specifically, the flange wall 103b5 includes a first flange 103b51 bent and extended from the side edge of the opening 103b4 toward the tuyere plate 105e, and a second flange 103b52 formed by bending and extending from the edge of the first flange 103b51. The side of the tuyere plate 105e close to the bottom wall 103b is provided with a positioning groove 105e1 corresponding to the second flange 103b52, and the second flange 103b52 is bonded in the positioning groove 105e1.

In this embodiment, after the second flange 103b52 is matched and arranged in the positioning groove 105e1, the two are fixed together by bonding to ensure the sealing performance.

5 and 6, further, the inner tank 103 also has a top wall 103a, a rear wall 103c and two side walls 103d opposite to the bottom wall 103b, and the bottom wall 103b includes a 105d respectively correspond to the first bottom wall 103b1, the second bottom wall 103b2 and the connecting wall 103b3, the connecting wall 103b3 has the first wall 103b31 connecting the first bottom wall 103b1, the connecting wall 103b31 and the second bottom wall 103b2 The second wall 103b32, the second wall 103b32 extends forward and downward from the front end of the second bottom wall 103b2, the air inlet 115 is set through the second bottom wall 103b2, and the air return port 117 runs through the second wall 103b32 set up.

In this embodiment, since the air inlet 115 is arranged through the second bottom wall 103b2, and the air return outlet 117 is arranged through the second wall 103b32, the air circulation formed by the air inlet 115 and the air return outlet 117 can better cover the entire storage compartment 101, Enhance the cooling effect of refrigeration equipment.

Further, the tuyere plate 105e includes a first plate 105e2 corresponding to the second bottom wall 103b2, a second plate 105e3 connected to the first plate 105e2 and corresponding to the second wall 103b32, and the air inlet 115 is arranged on the second wall 105e3. One plate 105e2, and the air return port 117 is located on the second plate 105e3.

In this embodiment, due to the different penetration directions of the air inlet 115 and the air return port 117, the air port plate 105e can be set to be composed of the first plate 105e2 and the second plate 105e3, wherein the air inlet 115 is set on the first plate 105e2, the return air port 117 is arranged on the second plate 105e3, which can reduce the difficulty of manufacturing and production. In addition, the air inlet 115 adopts a separate through hole structure, and the air return port 117 adopts a matrix grid-shaped through hole, so as to prevent the cold flow in the storage compartment 101 from entering the evaporation chamber 211 through the return air port 117 prematurely, reducing the cooling effect. The energy consumption of the equipment.

With reference to FIG. 12 , further, the base 201 has an evaporation chamber 211 for accommodating the evaporator 209 , and the casing 223 has a first casing wall 223b located on its top and corresponding to the first plate 105e2 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 communicating with the evaporation chamber 211 and corresponding to the air inlet 115, so The second cover wall 223c is provided with an air return port 223e which communicates with the evaporation chamber 211 and corresponds to the air return port 117, and the sealing installation groove 223a surrounds the outside of the air outlet 223d and the air return port 223e.

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 angle, so that the casing 223 is mated with the tuyere plate 105e. Moreover, an air outlet 223d corresponding to the air inlet 115 and an air return port 223e corresponding to the air return port 117 are provided on the cover 223, and the sealing member 221 covers the air outlet 223d and the air return port 223e to ensure that the evaporation chamber The chamber 211 is in airtight communication with the storage compartment 101 .

Continuing to refer to Fig. 3, Fig. 5 and Fig. 6, further, the inner tank 103 has a stepped bottom wall 103b located at the bottom thereof, and the outer shell 105 includes a bottom shell corresponding to the structure of the bottom wall 103b body 105d, the bottom casing 105d has a bottom casing upper wall 105d1 formed on the top of the unit compartment 113, and a bottom casing connecting body 105d3 connected to the front end of the bottom casing upper wall 105d1, and the lifting assembly 40 drives the machine base 201 in the unit compartment 113 After being lifted up, the base 201 abuts against the upper wall 105d1 of the bottom case and the connecting body 105d3 of the bottom case, and is limited on the lifting assembly 40 .

In this embodiment, by setting the bottom shell 105d of the shell 105 as a stepped shape matching the bottom wall 103b of the inner tank 103, when the lifting assembly 40 drives the base 201 to rise in the unit compartment 113, the base 201 passes through The lifting assembly 40 abuts against the upper wall 105d1 of the bottom case and the connecting body 105d3 of the bottom case, so as to prevent the frame 210 from detaching from the unit compartment 113 during the use of the refrigeration equipment.

With reference to Figure 13 and Figure 14, further, the lifting assembly 40 includes a bottom frame 401, a turning plate 403 rotatably arranged on the bottom frame 401, a stopper 405 arranged on the turning plate 403, the turning The plate 403 has a storage state contained in the bottom frame 401 and a raised state protruding from the bottom frame 401. In the raised state, the stopper 405 protrudes from the top of the flip plate 403 and extends into the base 201. In order to limit the inward deviation of the base 201 along the horizontal direction.

In this embodiment, as shown in FIG. 13 , through the rotation of the turnover plate 403, the base 21 is driven to rise in the unit compartment 113, and finally when the turnover plate 403 is in a raised state, the stopper 405 protrudes from the top of the turnover plate 403. The top end just protrudes into the base 201 to limit the deviation of the base 201 along the horizontal direction. As shown in Figure 14, after the reverse rotation plate 403 is reversed, when the turnover plate 403 is finally in the storage state, the upper end of the turnover plate 403 is just flush with the bottom frame 401, and the stopper 405 is also located under the upper end surface of the bottom frame 401. On the side, the machine base 201 can pull out the unit compartment 113 from the bottom frame 401, so as to facilitate the maintenance and replacement of the refrigeration unit 20.

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

In this embodiment, the operator can rotate the rotating rod 407 with a tool, and drive the plate main body 403a to turn over. When the plate main body 403a is turned over to the lifted state, the bottom of the base 201 abuts against the end surface of the plate main body 403a away from the side of the rotating rod 407. At this time, the stopper 405 can just extend into the base 201, thereby restricting the base. 201 is offset on the lifting assembly 40 .

Specifically, the board main body 403a has a long board 403a1 and a short board 403a2 connected to one side of the long board 403a1 in the width direction, and the stopper 405 is arranged on the short board 403a2 on the side of the long board 403a1 away from the rotating rod 407, And extend and protrude from the outside of the board main body 403a along a direction parallel to the long board 403a1.

In this embodiment, the board body 403a is made of a long board 403a1 and a short board 403a2, and the stopper 405 is integrally formed on the short board 403a2, which has a simple structure and low production cost. Certainly, the stopper 405 may also be disposed on the short plate 403a2 by welding or other fixing methods, or be other structures protruding from the outside of the short plate 403a2.

Further, the bottom frame 401 includes a group of first frame bodies 401a extending left and right and opposite to each other, and a second frame body 401b connected between adjacent first frame bodies 401a, the second frame body 401b has The connecting frame body 401b1 connected between the adjacent first frame bodies 401a, and the supporting frame body 401b2 connected to one side of the connecting frame body 401b1, the rotation rod 407 is connected between the adjacent first frame bodies 401a and supported on The supporting frame 401b2 is away from the side of the connecting frame 401b1.

In this embodiment, the first frame body 401 a and the supporting frame body 401 b 2 are supported on the bottom of the machine base 201 in the stored state, and the flip plate 403 is supported on the bottom of the machine base 201 in the lifted state. The rotating rod 407 and the connecting frame 401b1 are respectively located at two ends of the supporting frame 401b2, so that the supporting frame 401b2 supports the base 201 more stably. In addition, the bottom frame 401 of the present invention is preferably composed of mutually symmetrical first frame bodies 401a and mutually symmetrical second frame bodies 401b.

With reference to FIG. 15 , further, the second frame body 401b is arranged at intervals between adjacent first frame bodies 401a, and a first heat dissipation channel 409 is formed between adjacent second frame bodies 401b. A second heat dissipation channel 411 is formed between the board main body 403a and the connection frame 401b1.

In this embodiment, since the lifting assembly 40 is installed behind the cabinet body 10, there is a certain gap between the cabinet body 10 and the ground. and the second heat dissipation channel 411 to dissipate heat downwards, thereby facilitating the heat dissipation of the base 201 .

Further, the top of the connecting frame body 401b1 is bent and extended to form a positioning frame plate 401b11 , and in the storage state, the machine base 201 is placed between adjacent positioning frame plates 401b11 . In this embodiment, when the turnover plate 403 is in the storage state, due to the setting of the positioning frame plate 401b11, the machine base 201 can only move forward and backward on the bottom frame 401, but cannot move in the left and right directions, so that the machine base 201 can be easily placed in the unit compartment. Positioning installation in 113.

Further, the side of the connecting frame body 401b1 away from the positioning frame plate 401b11 is formed with a first folded edge 401b12 extending in the front-to-back direction, and the front and rear sides of the supporting frame body 401b2 are formed with second folded edges extending in the left-right direction. Side 401b21. In this embodiment, the setting of the first folded edge 401b12 improves the supporting strength of the connecting frame 401b1, and the setting of the second folded edge 401b21 improves the supporting strength of the supporting frame 401b2.

Further, the bottom shell connecting body 105d3 extends forward and downward from the front end of the bottom shell upper wall 105d1, and the bottom wall 103b includes a second bottom wall 103b2 and a connecting wall 103b3 respectively corresponding to the bottom shell 105d The cabinet body 10 is formed with an air inlet 115 and a return air outlet 117 connecting the unit compartment 113 and the storage compartment 101, the air inlet 115 is arranged through the second bottom wall 103b2, and the return air outlet 117 is arranged through the connecting wall 103b3 set up.

In this embodiment, the air inlet 115 and the air return 117 on different planes can ensure that the air circulation covers the entire storage compartment 101 .

Further, the machine base 201 includes a base 215, a cover 223 arranged above the base 215 and matched with the bottom shell 105d, when in a raised state, the cover 223 abuts against the bottom shell 105d, stops Member 405 extends into base 215 .

In this embodiment, according to the lower end of the base 215 criss-cross reinforcement ribs are often provided, and the stopper 405 protrudes between these reinforcement ribs, so as to limit the deviation of the machine base 201 .

Continuing to refer to Figure 3 and Figure 7, further, the lower side of the liner 103 is a stepped structure protruding into the storage compartment 101, and the unit compartment 113 is located at the rear and lower side of the aforementioned stepped structure, And have the first cavity 113a positioned at the front side and the second cavity 113b positioned at the rear side of the first cavity 113a, the vertical height of the first cavity 113a is smaller than the vertical height of the second cavity 113b, so The base 201 is formed with a first heat exchange port 201a and a second heat exchange port 201b communicating with the installation chamber 213, the first heat exchange port 201a is open to the first cavity 113a, and the second heat exchange port 201b is open to the first cavity 113a. The port 201b is open to the second cavity 113b.

In this embodiment, by setting the lower side of the liner 103 as a stepped structure, the unit compartment 113 is formed with a first cavity 113a and a second cavity 113b arranged in front and back, because the first cavity 113a and the second cavity The cavities 113b have different vertical heights. When convection is formed between the first heat exchange port 201a and the second heat exchange port 201b communicating with the installation chamber 213, a gap is formed between the first cavity 113a and the second cavity 113b. The pressure difference accelerates the heat exchange in the installation chamber 213 .

Continuing to refer to Fig. 5 and Fig. 6, further, the inner tank 103 has a bottom wall 103b located at its bottom and arranged in a stepped shape, and the outer shell 105 includes a top shell 105a, two side shells 105b, a rear shell The body 105c, the bottom shell 105d corresponding to the structure of the bottom wall 103b, the bottom shell 105d has a bottom shell upper wall 105d1 formed on 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 case connecting body 105d3 gradually decreases from back to front, and the unit compartment 113 is located between the bottom case upper wall 105d1, the bottom case connecting body 105d3 and the two side cases 105b.

In this embodiment, since the unit compartment 113 is formed on the lower side of the bottom shell connecting body 105d3, and the vertical height of the bottom shell connecting body 105d3 gradually decreases from the rear to the front, the vertical section of the unit compartment 113 has a tapered structure, which further increases The pressure difference between the front and rear sides of the large unit chamber 113 accelerates the heat exchange in the installation chamber 213 .

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

In this embodiment, the vertical section of the first cavity 113a has a tapered structure. There is a pressure difference between the front and rear sides of the first cavity 113 a, thereby accelerating the flow of the gas in the installation cavity 213 .

Further, the bottom shell 105d also has a bottom shell lower wall 105d2 connected to the front end of the bottom shell connecting body 105d3, and the refrigeration equipment also includes a lifting assembly 40 connecting the bottom shell lower wall 105d2 and the two side shells 105b, A first cooling channel 409 communicating with the first cavity 113a is formed on the lifting assembly 40 .

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

As shown in FIG. 16 , further, the base 201 includes a base 215 on which the compressor 205 and the condenser 207 are installed, a thermal insulation component 217 fixed above the base 215 , and a casing 223 covering the outside of the base 215 and the thermal insulation component 217 , the installation chamber 213 is formed in the casing 223 and is located between the thermal insulation component 217 and the base 215, the casing 223 has a front cover wall 223f and a rear cover wall 223g oppositely arranged, the first heat exchange The port 201a is provided on the front cover wall 223f, and the second heat exchange port 201b is provided on the rear cover wall 223g.

In this embodiment, the first heat exchange port 201a communicates with the front side of the front cover wall 223f, and the second heat exchange port 201b communicates with the rear side of the rear cover wall 223g, so that the heat generated in the installation chamber 213 can be continuously Radiate outward.

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

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

Further, the first heat exchange port 201a also includes a second heat exchange inlet 201a2 arranged on the front side of the air inlet chamber 213b, and the second heat exchange port 201b also includes a second heat exchange inlet 201a2 arranged on the rear side of the air outlet chamber 213a. Heat exchange outlet 201b2.

In this embodiment, the first heat exchange outlet 201a1 and the second heat exchange inlet 201a2 provided on the front cover wall 223f are both connected to the first cavity 113a, forming a circulating air flow in the first cavity 113a, accelerating the gas flow and Cool down. Similarly, the first heat exchange inlet 201b1 and the second heat exchange outlet 201b2 provided on the rear cover wall 223g are both connected to the second cavity 113b, forming a circulating air flow in the second cavity 113b to accelerate gas flow and cool down.

Further, the casing 223 also has a left casing wall 223h and a right casing wall 223i oppositely arranged along the length direction of the base 215, the left casing wall 223h is provided with a third heat exchange port 223j, and the right casing wall 223i is provided with a fourth heat exchange port 223k, and both the third heat exchange port 223j and the fourth heat exchange port 223k are open to the second cavity 113b.

In this embodiment, the third heat exchange port 223j and the fourth heat exchange port 223k are arranged on the left and right sides of the casing 223, and are located on both sides of the condensing fan 219, thereby forming a cooling air that runs through the entire installation chamber 213 left and right. Way, speed up the cooling of the installation chamber 213.

With reference to FIG. 2 , further, the aforementioned two side shells 105b are correspondingly provided with a first cooling hole 105b1 communicating with the second cavity 113b and opposite to the third heat exchange port 223j, communicating with the second cavity 113b and For the second heat dissipation hole 105b2 opposite to the fourth heat exchange port 223k, the axes of the first heat dissipation hole 105b1 and the axis of the second heat dissipation hole 105b2 are arranged non-coincidentally.

In this embodiment, since the axes of the first cooling holes 105b1 and the axes of the second cooling holes 105b2 are arranged non-coincidentally, when multiple cooling devices are arranged together left and right, it is avoided that the first cooling holes 105b1 of one cooling device are directly facing the opposite It is adjacent to the second heat dissipation hole 105b2 of the refrigeration equipment, so as to eliminate the mutual influence of adjacent refrigeration equipment when dissipating heat.

Further, the cabinet body 10 is formed with an air inlet 115 and an air return port 117 connecting the unit compartment 113 and the storage compartment 101, the air inlet 115 is set through the upper wall 105d1 of the bottom shell, and the air return port 117 is set through the bottom shell. Shell connector 105d3 is provided. In this embodiment, the air inlet 115 and the air return 117 on different planes can ensure that the air circulation covers the entire storage compartment 101 .

Referring to Fig. 1 to Fig. 22, as mentioned above, the refrigerating unit 20 provided by the preferred embodiment of the present invention includes a compressor 205, a condenser 207, an evaporator 209, etc., and is integrally installed in the refrigerating equipment, which is convenient There is no need to remove the entire refrigeration equipment during later maintenance and replacement.

Specifically, as shown in Figure 4, the refrigeration unit 20 includes a machine base 201, a compressor 205, a condenser 207, and an evaporator 209 are all arranged in the machine base 201 and connected through a pipeline 203, and the pipeline 203 It includes a return air pipe 203 a communicating with the evaporator 209 and the compressor 205 .

With reference to FIG. 17 , further, the base 201 includes a thermal insulation component 217 for installing the evaporator 209, the thermal insulation component 217 has a thermal insulation bottom wall 217a supported below the evaporator 209, and is connected to the thermal insulation bottom wall 217a and encloses On the heat preservation side wall 217b around the evaporator 209, the heat preservation component 217 is formed with a heat preservation passage 217c extending on the heat preservation side wall 217b, and the return air pipe 203a is arranged along the heat preservation passage 217c and faces the heat preservation bottom wall 217a extended below.

In this embodiment, by setting the heat preservation passage 217c on the heat preservation component 217, the air return pipe 203a is arranged behind the heat preservation passage 217c, while extending the length of the air return pipe 203, the heat exchange between the air return pipe 203a and the internal components of the machine base 201 is limited, thereby Avoid condensation on the air return pipe 203a.

Further, the heat preservation channel 217c is located on the side of the heat preservation side wall 217b away from the evaporator 209, and extends back and forth on the outside of the heat preservation side wall 217b. In this embodiment, the heat preservation passage 217 c that surrounds the reciprocating and zigzag circuit extends the length of the air return pipe 203 a and at the same time fixes the air return pipe 203 a to counteract the vibration generated by the compressor 205 .

Further, the pipeline 203 also includes a capillary 203b communicating with the evaporator 209 and the condenser 207, and the capillary 203b and the air return pipe 203a are arranged side by side in the heat preservation channel 217c. In this embodiment, the capillary 203b is also arranged in the heat preservation channel 217c, and the capillary 203b can be preheated through the air return pipe 203a, thereby improving the refrigeration efficiency of the refrigeration unit.

Specifically, the base 201 also includes a base 215 on which the compressor 205 and the condenser 207 are installed and fixed below the thermal insulation component 217. An evaporation chamber 211 is formed inside the thermal insulation side wall 217b. The thermal insulation component 217 and An installation chamber 213 is formed between the bases 215, and the heat preservation passage 217c has a first passage 217c1 and a second passage 217c2 extending along the length direction of the heat preservation component 217, and a third passage 217c3 connecting the first passage 217c1 and the second passage 217c2 , the first channel 217c1 communicates with the evaporation chamber 211 , and the second channel 217c2 communicates with the installation chamber 213 .

In this embodiment, the first passage 217c1 and the second passage 217c2 are arranged along the length direction of the heat preservation component 217, which increases the length of the heat preservation passage 217c. After the first passage 217c1, the second passage 217c2, and the third passage 217c3 are combined, they have a "U"-shaped structure, which is simple in structure, reduces the difficulty of manufacturing the heat preservation passage 217c, and facilitates the installation of the return air pipe 203a and the capillary 203b in the heat preservation passage 217c .

Further, the heat preservation part 217 is also formed with an installation passage 217d that runs through the heat preservation side wall 217b, and the installation passage 217d is provided with an installation part 217d1. It is provided in the mounting part 217d1.

In this embodiment, the setting of the installation part 217d1 can reduce the cooling loss between the evaporation chamber 211 and the heat preservation channel 217c, and can also facilitate the connection of the air return pipe 203a and the capillary tube 203b with the evaporator 209, so as to fix the air return pipe 203a And the role of capillary 203b.

Further, the thermal insulation component 217 also has a spacer boss 217e that is arranged on the outer side of the thermal insulation side wall 217b and extends along the length direction of the thermal insulation component 217. The installation channel 217d and the third channel 217c3 are respectively located At both ends, the capillary tube 203b and the air return tube 203a are arranged around the spacer boss 217e and then extend toward the installation chamber 213 .

In this embodiment, the first channel 217c1 and the second channel 217c2 are respectively located on the upper and lower sides of the spacer boss 217e, and the air return pipe 203a and the capillary tube 203b are arranged around the spacer boss 217e. In the limited space of the unit 201, the maximum increase its length. The installation channel 217d and the third channel 217c3 are respectively located at two ends of the spacer boss 217e in the length direction, thereby reducing the heat exchange between the evaporation chamber 211 and the bracket of the installation chamber 213 .

Further, the thermal insulation bottom wall 217a is arranged obliquely along the front and rear directions, and the lower side of the thermal insulation bottom wall 217a is provided with a first drainage hole 217a1 penetrating through it.

In this embodiment, since the thermal insulation bottom wall 217a is arranged obliquely along the front-to-back direction, it is beneficial for the defrosting water generated by the evaporator 209 to flow to a lower place and be discharged through the first drain hole 217a1.

Further, the base 201 also includes a casing 223 covering the outside of the base 215 and the thermal insulation component 217, the casing 223 is formed with an air outlet 223d and an air return port 223e communicating with the evaporation chamber 211, and the air outlet 223d The vertical height of is greater than the vertical height of the air return port 223e.

In this embodiment, the casing 223 covers the outer side of the thermal insulation component 217 to reduce the cooling loss from the evaporation chamber 211 to the outside. The air outlet 223d and the air return port 223e are at different heights, and can be matched with the aforementioned air inlet 115 and the air return port 117 .

Further, the base 201 also includes a thermal insulation component 225 arranged on the top of the thermal insulation side wall 217b and matched with the inner surface of the casing 223. The thermal insulation component 225 covers the top of the evaporator 209 and runs along the thermal insulation bottom wall. 217a is arranged in parallel, the heat insulation component 225 and the thermal insulation bottom wall 217a are formed with an evaporation air duct 211a connecting the air outlet 223d and the air return port 223e, and the vertical height of the evaporation air duct 211a is gradually from the air return port 223e to the air outlet 223d increase.

In this embodiment, the arrangement of the heat insulating component 225 can reduce the cooling loss of the evaporation chamber 211 to the outside. The two ends of the evaporation duct 211a are connected to the air outlet 223d and the air return port 223e respectively.

With reference to FIG. 18 , further, the pipeline 203 includes an outlet pipe 203c connecting the compressor 205 and the condenser 207, the base 201 includes a base 215 for installing the compressor 205 and the condenser 207, and is fixed on the base The heat conduction support 227 on the base 215 has a water receiving area 215a formed on the base 215, and the heat conduction support 227 is arranged in the water receiving area 215a and connected to the air outlet pipe 203c.

In this embodiment, by setting the heat conduction bracket 227 on the base 215, and the heat conduction bracket 227 is located in the water receiving area 215a, the defrosting water generated by the refrigeration unit 20 or the condensed water generated in the storage compartment 101 is collected in the water receiving area. In the area 215a, heat is absorbed when evaporating in the water receiving area 215a, thereby cooling the heat conducting bracket 227 and the air outlet pipe 203c installed on the heat conducting bracket 227.

Further, the air outlet pipe 203c has a first pipe body 203c1 connected to the compressor 205, a second pipe body 203c2 connected to the condenser 207, connected between the first pipe body 203c1 and the second pipe body 203c2 and between The third pipe body 203c3 zigzags around in the horizontal plane, and the heat conduction bracket 227 extends along the length direction of the third pipe body 203c3.

In this embodiment, the third pipe body 203c3 zigzags around in a horizontal plane, so that the length of the air outlet pipe 203c is maximized within the limited space of the unit 201 . The heat conduction support 227 extends along the length direction of the third pipe body 203c3, which increases the contact area between the heat conduction support 227 and the air outlet pipe 203c, so as to increase the heat conduction area.

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

In this embodiment, the heat conducting bracket 227 is connected to the bottom platform 215b, so as to transfer the heat of the air outlet pipe 203c to the bottom platform 215b and the water accumulated on the bottom platform 215b.

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

In this embodiment, since the condenser 207, the third pipe body 203c3 and the compressor 205 are arranged along the length direction of the base 215, the space on the base 215 is effectively utilized. The heat conduction bracket 227 is snap-connected to the first pipe 203c31 to facilitate the installation and disassembly of the air outlet pipe 203c. The first pipe 203c31 is fixed on the bottom platform 215b through the heat conduction bracket 227, so as to avoid shaking caused by the vibration generated by the compressor 205.

Further, the heat conduction bracket 227 has a heat conduction bottom plate 227a abutted against the bottom platform 215b, and a heat conduction side plate 227b formed by bending and extending along the side edge of the heat conduction bottom plate 227a. The installation hole 227a1, the top of the heat conduction side plate 227b is bent and extended to form a heat conduction clamping portion 227b1 matching the first tube 203c31.

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

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

In this embodiment, there are gaps between the condenser 207 and the cooling fan 219 and the bottom platform 215b, so as to maximize the surface area of the water accumulated in the water receiving area 215a, thereby accelerating the evaporation of water in the water receiving area 215a. Moreover, the temperature of the condenser 207 and the condensing fan 219 can also be lowered by evaporating water in the water receiving area 215a.

Further, the heat conduction bottom plate 227a is also provided with heat conduction positioning holes 227a2 and heat conduction openings 227a3, the heat conduction installation holes 227a1, heat conduction positioning holes 227a2 and heat conduction openings 227a3 are arranged along the length direction of the heat conduction base plate 227a, and the bottom platform 215b is also provided with a bottom mounting hole 215b1 corresponding to the heat conduction mounting hole 227a1, a bottom positioning post 215b2 corresponding to the heat conduction positioning hole 227a2, and a bottom limit post 215b3 corresponding to the heat conduction opening 227a3, so that the heat conduction bottom plate 227a is limited. Fixed on the bottom platform 215b.

In this embodiment, after the heat conduction positioning hole 227a2 is docked with the bottom positioning post 215b2, the front and back deviation of the heat conduction bracket 227 is limited. After the heat conduction opening 227a3 is docked with the bottom limit post 215b3, the deviation of the heat conduction bracket 227 in the up-down direction and left-right direction is limited. Moreover, a single heat conducting bracket 227 only needs to use one fixing piece to complete the fixing of the heat conducting bracket 227 and the bottom platform 215b. In addition, the heat-conducting bracket 227 of the present invention adopts a left-right symmetrical design, which prevents reverse installation and facilitates production.

Further, the base 201 also includes a thermal insulation component 217 fixed above the base 215, the thermal insulation component 217 has a thermal insulation bottom wall 217a supported below the evaporator 209, and the thermal insulation bottom wall 217a is arranged obliquely along the front and rear directions, The lower side of the thermal insulation bottom wall 217a is provided with a first drainage hole 217a1 through it, and the base 201 also includes a first guide tube 229 arranged below the thermal insulation component 217, and the first guide tube 229 One end of the pipe 229 communicates with the first drainage hole 217a1, and the other end extends toward the water receiving area 215a.

In this embodiment, since the thermal insulation bottom wall 217a is arranged obliquely along the front and rear directions, it is beneficial for the defrosting water generated by the evaporator to flow to a lower place and be discharged through the first drainage hole 217a1. The water in the first drainage hole 217a1 is finally introduced into the water receiving area 215a through the first guide pipe 229 .

Further, the bottom platform 215b is further provided with a diversion boss 215b4 , and the top of the diversion boss 215b4 is provided with a diversion tube 215b41 connected to the first diversion tube 229 .

In this embodiment, the upper end surface of the diversion boss 215b4 is inclined, so that when the water falls on the upper end, it is finally guided into the water receiving area 215a. The drainage tube 215b41 is docked with the first drainage tube 229 through the buckle on the top, so as to prevent the two from being separated.

With reference to FIG. 20 , when the refrigeration unit 20 is installed in the above-mentioned refrigeration equipment, the refrigeration equipment also includes a second guide pipe 50 arranged in the heat preservation cavity 107, and the refrigeration unit 20 is arranged in the unit compartment 113 The bottom of the inner tank 103 is provided with a second drainage hole 103e penetrating through it, one end of the second guide pipe 50 communicates with the second drainage hole 103e, and the other end extends toward the water receiving area 215a.

In this embodiment, a second drain hole 103 e is provided at the bottom of the inner tank 103 to avoid accumulation of condensed water in the storage compartment 101 . Finally, the water in the second drainage hole 103e is introduced into the water receiving area 215a through the second guide pipe 50, and is finally heated and evaporated.

Continuing to cooperate as shown in FIG. 4, in the above-mentioned refrigeration unit 20, the base 201 includes a base 215 for installing a condensing fan 219, a compressor 205 and a condenser 207, and a heat preservation device that is fixed above the base 215 and installs the evaporator 209. Component 217, a support assembly 231 arranged between the base 215 and the heat preservation component 217, the compressor 205, the condensing fan 219 and the condenser 207 are arranged along the length direction of the evaporator 209, and the support assembly 231 is arranged along the heat preservation The lengthwise direction of the components 217 is arranged at intervals.

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 on the bottom of the evaporator 209 by the supporting components 231 arranged at intervals along the length direction of the heat preservation component 217 , saving the occupied space of the refrigeration unit 20, and the structure is stable.

Referring to FIG. 21 , further, the support assembly 231 includes a support column 231 a connecting the base 215 and the heat preservation component 217 , and the support column 231 a is arranged on both sides of the heat preservation component 217 in the length direction.

In this embodiment, the support columns 231a arranged on both sides of the heat preservation component 217 in the length direction support and fix the heat preservation component 217 on both sides of the length direction, further enhancing the stability of the internal structure of the refrigeration unit 20 .

Further, the condensing fan 219 includes a fan frame 219a fixed on the base 215, a blade 219b arranged in the fan frame 219a, and the support assembly 231 includes a support platform 231b arranged on the top of the fan frame 219a, so The support platform 231b abuts against the lower end of the heat preservation component 217 and extends along the width direction of the heat preservation component 217 .

In this embodiment, the support platform 231b extending along the width direction of the heat preservation component 217 can support and fix both sides of the heat preservation component 217 in the width direction, further enhancing the stability of the internal structure of the refrigeration unit 20 . Moreover, by directly setting the support platform 231b on the fan frame 219a without adding new components, the production cost is saved, and the internal space of the refrigeration unit 20 is also saved.

As shown in FIG. 22 , further, the base 201 also includes a casing 223 covering the outside of the base 215 and the thermal insulation component 217 , and an installation cavity between the thermal insulation component 217 and the base 215 is formed in the casing 223 Body 213, the fan frame 219a has a frame frame 219a1 whose profile matches the cross section of the installation cavity 213, a frame cover 219a2 that is arranged on the frame frame 219a1 and covers the outside of the blade 219b, and the support platform 231b They are the first platform 219a3 and the second platform 219a4 which are arranged on the frame frame 219a1 and are located on the front and rear sides of the frame cover 219a2.

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

Further, the thermal insulation component 217 has a thermal insulation bottom wall 217a located at its bottom, a thermal insulation side wall 217b connected to the thermal insulation bottom wall 217a and surrounded by the evaporator 209, the thermal insulation bottom wall 217a is inclined along the front and rear direction, and the The evaporator 209 is arranged on the heat preservation bottom wall 217a, and is arranged obliquely along the heat preservation bottom wall 217a.

In this embodiment, the evaporator 209 is arranged obliquely along the heat preservation bottom wall 217a, further saving the front and rear space of the refrigeration unit 20.

Further, the lower end of the thermal insulation bottom wall 217a is provided with a frame cover groove 217a2 matching with the frame cover 219a2, and a frame frame boss 217a3 abutted against the second platform 219a4, and the frame frame 219a1 is located on the second platform. One side of the platform 219a4 extends to cover one side of the frame boss 217a3.

In this embodiment, the arrangement of the frame cover groove 217a2 realizes the position limitation between the heat preservation component 217 and the fan frame 219a in the front and back directions, and also serves as a positioning installation between the two. The setting of the frame boss 217a3 prevents the thermal insulation component 217 from shifting to the left, and also serves as a positioning installation between the two.

Further, the lower end of the thermal insulation bottom wall 217a is provided with a compressor groove 217a4 above the compressor 205 and a condensation boss 217a5 above the condenser 207, and the condensation boss 217a5 is close to the end surface of the condenser 207 side Set in the horizontal direction.

In this embodiment, the setting of the press groove 217a4 and the condensation boss 217a5 can prevent the operator from installing the heat preservation component 217 in reverse. The setting of the condensation boss 217a5 prevents the condenser 207 from overheating and affecting the normal operation of the evaporator 209 .

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

In this embodiment, the heat generated by the air outlet pipe 203c can be transferred to the base 215 for heat dissipation by using the heat conducting bracket 227 .

Further, the pipeline 203 includes a return air pipe 203a that communicates with the evaporator 209 and the compressor 205, the heat preservation side wall 217b is provided with a heat preservation passage 217c, and the return air pipe 203a is arranged along the heat preservation passage 217c and then faces the heat preservation The bottom wall 217a extends below.

In this embodiment, the heat preservation channel 217c can extend the length of the air return pipe 203a and insulate the air return pipe 203a to avoid condensation on the air return pipe 203a.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

A refrigeration device comprising:

A cabinet body, the cabinet body has an inner tank forming a storage compartment, an outer shell, a thermal insulation cavity arranged between the inner tank and the outer shell, and a unit compartment formed on the lower side of the cabinet body;

The refrigerating unit is arranged in the unit compartment, and has a machine base, a compressor, a condenser, and an evaporator arranged on the machine base and connected by pipelines;

The lifting component is supported on the bottom of the base and fixedly connected to the cabinet;

It is characterized in that the cabinet body is formed with an air inlet and an air return port connecting the unit compartment and the storage compartment, and a sealing positioning groove surrounding the outside of the air inlet and the air return port is formed on the end face facing the unit compartment, so The machine base is provided with a seal protruding from its outer surface. After the machine base is installed in the unit compartment, under the action of the lifting component, the seal abuts against the sealing positioning groove so that the machine base is limited. It is located in the unit compartment and is sealed and connected to the storage compartment.
The refrigerating device according to claim 1, wherein the inner container has a stepped bottom wall located at the bottom thereof, and the outer casing includes a bottom shell corresponding to the structure of the bottom wall, and the bottom shell It has the upper wall of the bottom case formed on the top of the unit compartment, the lower wall of the bottom case located at the front side of the unit compartment and lower than the upper wall of the bottom case, the bottom case connecting body connecting the upper wall of the bottom case and the lower wall of the bottom case, the air inlet It is arranged through the upper wall of the bottom case, and the air return port is arranged through the connecting body of the bottom case.
The refrigerating device according to claim 2, wherein the bottom shell is provided with an opening through the upper wall of the bottom shell and the connecting body of the bottom shell, and the shell further includes a tuyere plate arranged on the opening, The sealing positioning groove is formed on the tuyere plate.
The refrigerating device according to claim 1, wherein the sealing positioning groove is configured as a single closed ring structure, and the projections of the air inlet and the return air outlet both fall inside the ring structure.
The refrigerating device according to claim 3, wherein the sealing positioning groove is concave toward the side away from the machine base and has a circular arc-shaped cross section, and the sealing member has a second section matching the cross section of the sealing positioning groove. A sealing wall, the arc radius of the first sealing wall is smaller than the groove radius of the sealing positioning groove.
The refrigerating device according to claim 5, wherein the machine base comprises a base, a casing arranged above the base and matched with the bottom shell, and the upper surface of the casing is provided with a sealing positioning groove. Corresponding to the seal installation groove, the seal installation groove is recessed toward the side away from the bottom shell and has a planar cross-section, and the seal also has a second seal connected to the first seal wall and bonded in the seal installation groove A wall, a sealing extrusion chamber formed between the first sealing wall and the second sealing wall, and a sealing connection wall connecting the first sealing wall and the second sealing wall and penetrating the sealing extrusion chamber.
The refrigerating device according to claim 6, wherein an opening is formed on the bottom wall for the air inlet and return air to be exposed to the storage compartment, and the bottom wall includes an opening formed by bending and extending from the side edge of the opening. The flanging wall is bonded to the tuyere plate to seal the connection between the opening and the tuyere plate.
The refrigerating device according to claim 7, wherein the flange wall includes a first flange formed by bending and extending from the side edge of the opening toward the tuyere plate, and a second flange formed by bending and extending from the edge of the first flange. For the flange, a positioning groove corresponding to the second flange is provided on the side of the tuyere plate close to the bottom wall, and the second flange is bonded in the positioning groove.
The refrigerating equipment according to claim 8, characterized in that, the inner container also has a top wall, a rear wall and two side walls opposite to the bottom wall, and the bottom wall includes first bottoms respectively corresponding to the bottom shells wall, a second bottom wall and a connecting wall, the connecting wall has a first wall connecting the first bottom wall, a second wall connecting the first wall and the second bottom wall, and the second wall is formed from the second bottom wall The front end extends obliquely forward and downward, the air inlet is arranged through the second bottom wall, and the air return outlet is arranged through the second wall.
The refrigerating device according to claim 9, wherein the tuyere plate comprises a first plate corresponding to the second bottom wall, a second plate connected to the first plate and corresponding to the second wall, and the further The air outlet is arranged on the first board, and the air return outlet is arranged on the second board.
The refrigerating device according to claim 10, wherein the machine base has an evaporating chamber for accommodating the evaporator, and the casing has a first casing wall at the top thereof corresponding to the first plate, connecting The first cover wall and the second cover wall corresponding to the second plate, the first cover wall is provided with an air outlet communicating with the evaporation chamber and corresponding to the air inlet, and the second cover wall is provided with a communication The evaporation chamber and the air return port correspond to the air return port, and the sealing installation groove surrounds the outside of the air outlet and the air return port.