WO2023020171A1

WO2023020171A1 - Refrigeration device

Info

Publication number: WO2023020171A1
Application number: PCT/CN2022/105739
Authority: WO
Inventors: 任巧丽; 李大伟; 鲁永丽
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: 2021-08-19
Filing date: 2022-07-14
Publication date: 2023-02-23
Also published as: CN216080531U

Abstract

A refrigeration device, comprising a cabinet and a refrigeration unit. The cabinet comprises a housing, a liner, a thermal insulation space, and a ventilation duct; the thermal insulation space is provided between the housing and the liner; a storage compartment is formed inside the liner; the ventilation duct passes through the cabinet to make the storage compartment communicated with the interior of the refrigeration unit; a separation portion for dividing the interior of the ventilation duct into an air inlet and an air outlet is provided in the ventilation duct; the separation portion and the inner wall of the ventilation duct are integrally formed. The forming process of the ventilation duct is simplified.

Description

refrigeration equipment

technical field

The utility model relates to the field of refrigeration equipment, in particular to a refrigeration equipment with a refrigeration unit arranged outside a box shell.

Background technique

Refrigeration equipment such as refrigerators and freezers with external refrigeration units usually include a cabinet and a refrigeration unit installed on the cabinet. The refrigeration unit gathers compressors, condensers, evaporators, fans and other components in one box. The box body is provided with an air inlet and return structure connected to the inside of the refrigeration unit. The air inlet and return structure includes an air inlet and a return air outlet. The cold air of the refrigeration unit enters the box from the air inlet to reduce the temperature inside the box. The gas in the box Then return to the inside of the refrigeration unit from the return air outlet.

The air inlet and return air outlet on the existing box body are formed in the following way: an opening is opened on the box body, and a plurality of barrier strips spliced with each other to prevent the foam material from overflowing are arranged on the inner wall of the opening, and spliced between the barrier strips Metal strips divide the area surrounded by the barrier strips into air inlets or air return outlets; or, open two openings on the box body, and the inner wall of each opening is provided with a plurality of barrier strips spliced with each other to prevent the foam material from overflowing , the area surrounded by the barrier strips in one opening is the air inlet, and the area enclosed by the barrier strips in the other opening is the air return port. The existing air inlet and air outlet molding methods are complicated in process and high in cost, and the discharge material is easy to overflow from the splicing area of the blocking strip. Contents of the invention

The purpose of the utility model is to provide a refrigeration device with a ventilation duct.

In order to achieve one of the purposes of the above-mentioned utility model, one embodiment of the utility model provides a refrigeration device, including a box body and a refrigeration unit installed outside the box body, the box body includes an outer shell, an inner tank, and a The thermal insulation space between the outer shell and the inner tank, a storage compartment is formed inside the inner tank, and the refrigeration equipment also includes a ventilation system that passes through the box to communicate with the storage compartment and the interior of the refrigerating unit pipeline;

A partition is provided inside the ventilation duct, and the partition divides the interior of the ventilation duct into an air inlet and an air return port, the ventilation duct is integrated, and the partition is integrally formed with the inner wall of the ventilation duct .

As a further improvement of an embodiment of the present utility model, a heat preservation cavity is arranged inside the partition.

As a further improvement of an embodiment of the present utility model, the heat preservation cavity communicates with the heat preservation space.

As a further improvement of an embodiment of the present invention, the ventilation duct passes through the heat preservation space, the heat preservation chamber extends to the outer wall of the ventilation duct to form an opening, and the opening is arranged in the heat preservation space.

As a further improvement of an embodiment of the present utility model, the box body further includes a windshield arranged inside the inner tank, and the windshield divides the inside of the inner tank into storages located in front of the windshield. compartment and the air passage located behind the windshield, and the windshield is provided with a ventilation opening communicating with the storage compartment and the air passage; the air passage communicates with the air inlet, and the storage The object room communicates with the air return port.

As a further improvement of an embodiment of the present invention, the refrigerating unit is arranged above the box, and the outer periphery of the ventilation duct is provided with a horizontally protruding ventilation duct and supported on the top of the inner tank. the support section.

As a further improvement of an embodiment of the present utility model, a through hole through which the ventilation duct passes is provided on the top of the housing, and the area of the through hole on the horizontal plane is larger than the area of the support part on the horizontal plane.

As a further improvement of an embodiment of the present utility model, the outer periphery of the ventilation duct is provided with a limiting part that protrudes outward from the ventilation duct and is supported on the top of the box shell, and the ventilation duct is positioned on the support part. A reinforcing rib is provided between the limiting part.

As a further improvement of an embodiment of the present utility model, the side of the ventilation duct facing the refrigerating unit is provided with a heat insulation structure surrounding the air inlet and the air return outlet.

As a further improvement of an embodiment of the present utility model, the ventilation duct has a filter structure arranged in the air inlet and the return air outlet, and the filter structure includes a plurality of first rods parallel to the partition and a plurality of a second rod perpendicular to the partition, the two ends of the first rod are respectively connected to the inner walls on both sides of the ventilation duct, and one end of the second rod is connected to the inner wall of the ventilation duct , and the other end is connected to the partition.

Compared with the prior art, the utility model has the beneficial effects that: the air inlet and the air return port are arranged in the ventilation duct to form an air intake and return structure connecting the interior of the refrigeration unit and the storage compartment, and the molding process is simple. The ventilation duct separates the air inlet, the air return port and the heat preservation space, which can effectively prevent the foaming material in the heat preservation space from entering the air inlet and return air port during foaming. In addition, the partition part that divides the interior of the ventilation duct into the air inlet and the return air outlet is integrally formed with the ventilation duct, which further simplifies the molding process of the ventilation duct.

Description of drawings

Fig. 1 is a front view of a refrigeration device according to an embodiment of the present invention;

Fig. 2 is a front view of a box body and a ventilation duct in an embodiment of the present invention;

Fig. 3 is the sectional view of A-A' among Fig. 2;

Fig. 4 is an exploded view of a box body and a ventilation duct according to an embodiment of the present invention;

Fig. 5 is a structural schematic diagram of a refrigeration circuit according to an embodiment of the present invention;

Fig. 6 is a schematic structural view of a ventilation duct with a first type of partition provided by an embodiment of the present invention;

Fig. 7 is a schematic structural view of a ventilation duct with a second type of partition provided by another embodiment of the present invention.

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.

In each drawing of the present utility model, for convenience of illustration, some dimensions of structures or parts are enlarged relative to other structures or parts, and therefore, are only used to illustrate the basic structure of the subject matter of the present utility model.

The utility model provides a refrigeration device. The refrigeration device of the utility model is a refrigerator, a freezer and other equipment for refrigerating or freezing items.

As shown in FIG. 1 , FIG. 2 and FIG. 4 , the refrigeration equipment includes a box body 10 , a refrigeration unit 20 and a ventilation duct 30 .

The box body 10 constitutes the main body of the refrigeration equipment, including an outer shell 11 , an inner tank 12 , and a thermal insulation space 13 arranged between the outer shell 11 and the inner tank 12 . The inner tank 12 is arranged in the outer shell 11 , and a storage compartment is formed inside the inner tank 12 . The thermal insulation space 13 is used for filling the foaming material for thermal insulation.

The refrigerating unit 20 is installed on the outside of the box body 10, and is used to provide the cooling capacity required for refrigerating or freezing items in the storage compartment.

The ventilation duct 30 passes through the box body 10 to communicate with the storage compartment and the interior of the refrigeration unit 20 . The utility model realizes the communication between the storage room and the interior of the refrigeration unit 20 through the ventilation pipe 30 of the pipe structure, so that the cold air of the refrigeration unit 20 can be freely transmitted to the interior of the storage room. Compared with the existing splicing type The ventilation structure formed by the blocking strips, the ventilation duct 30 of the utility model is easier to form, and is easier to assemble on the box body 10 .

As shown in FIG. 3 , a partition 31 is provided inside the ventilation duct 30 , and the partition 31 divides the interior of the ventilation duct 30 into an air inlet 32 and an air return 33 . The cold air inside the refrigeration unit 20 enters the storage compartment from the air inlet 32, and the gas in the storage compartment enters the interior of the refrigeration unit 20 from the air return port 33 to cool down, thereby forming a cycle.

The partition part 31 is integrally formed with the inner wall of the ventilation duct 30 , and the process of forming the ventilation duct 30 is simpler.

The ventilation duct 30 of the utility model separates the air inlet 32, the air return port 33 and the heat preservation space 13, which can effectively prevent the foaming material of the heat preservation space 13 from entering the air inlet 32 and the air return port 33 during foaming.

As shown in Fig. 2 and Fig. 3, in one embodiment of the present invention, the box body 10 also includes a windshield 14 arranged inside the liner 12, and the windshield 14 divides the inside of the liner 12 into sections located in the windshield. The storage compartment in the front of the plate 14 and the air duct positioned at the rear of the windshield 14, the windshield 14 is provided with a vent 141 communicating with the storage compartment and the air duct; the air duct communicates with the air inlet 32, and the storage room The chamber communicates with the air return port 33.

As shown in FIG. 5 , the refrigeration unit 20 includes a box body 21 , a compressor 22 arranged in the box body 21 , a condenser 23 , a capillary tube 24 , an evaporator 25 and a fan 26 . The compressor 22, the condenser 23, the capillary tube 24, and the evaporator 25 are sequentially connected by pipelines to form a refrigeration circuit. Refrigerant flows in the refrigeration circuit. When the refrigeration circuit is working, the refrigerant is compressed into a high-temperature and high-pressure gas by the compressor 22, and then enters the condenser 23 for heat exchange to form a medium-temperature and high-pressure liquid refrigerant. The liquid refrigerant passes through the capillary tube 24, throttling and lowering the pressure, then the refrigerant enters the evaporator 25 for heat exchange and vaporization, and finally the gaseous refrigerant returns to the compressor 22 to complete the refrigeration cycle. The blower 26 is arranged between the air inlet 32 and the air return 33 to circulate air between the inside of the refrigeration unit 20 and the storage compartment.

Since the temperature of the gas at the air inlet 32 and the air return port 33 is different, in order to prevent the gas at the air inlet 32 and the air return port 33 from generating heat exchange in the partition 31, resulting in a decrease in cooling efficiency, the inside of the partition 31 is provided with a thermal insulation for filling the thermal insulation material. Cavity 311.

As shown in Figure 6, one embodiment of the present utility model provides the first partition 31, the insulation chamber 311 in the partition 31 is not connected with the insulation space 13, and the insulation cotton, insulation foam, etc. are pre-filled in the insulation chamber 311 Material. Further, the outer wall of the ventilation duct 30 is provided with an inwardly recessed groove 312 at a position corresponding to the position of the partition 31. When the box body 10 performs foaming operations, the foaming material in the thermal insulation space 13 fills the groove 312, and the groove 312 is filled. After the foaming material in the groove 312 is cured, the ventilation duct 30 can be firmer relative to the box body 10 .

As shown in FIG. 7 , another embodiment of the present invention provides a second type of partition 31 , and the insulation cavity 311 in the partition 31 communicates with the insulation space 13 . Specifically, the ventilation duct 30 passes through the thermal insulation space 13, and the thermal insulation chamber 311 extends to the outer wall of the ventilation duct 30 to form an opening, and the opening is arranged in the thermal insulation space 13. When the foaming operation is performed on the box body 10, the foaming material in the thermal insulation space 13 fills the thermal insulation chamber 311 to form a thermal insulation material. Moreover, after the foaming material in the thermal insulation cavity 311 is cured, the ventilation duct 30 can be more firmly relative to the box body 10 .

The ventilation duct 30 with the first type of partition 31 does not need openings, so the molding process is simple. The ventilation duct 30 with the second type of partition 31 is more difficult than the ventilation duct 30 with the first type of partition 31. The molding process of the ventilation duct 30 is relatively complicated, but the step of filling the insulation material is omitted, and due to the heat preservation cavity 311 The amount of foaming material is larger than that in the groove 312 , and the position of the ventilation duct 30 with the second type of partition 31 is firmer.

As shown in FIG. 1 , the refrigeration unit 20 is arranged above the box body 10 to facilitate installation and disassembly of the refrigeration unit 20 .

As shown in FIG. 6 and FIG. 7 , further, a support portion 34 protruding from the ventilation duct 30 in the horizontal direction and supporting the top of the inner container 12 is provided on the outer periphery of the ventilation duct 30 . The liner 12 supports the ventilation duct 30 through the supporting portion 34 to fix the position of the ventilation duct 30 before the box body 10 is foamed.

As shown in FIG. 4 , the top of the shell 11 is provided with a through hole 111 through which the ventilation duct 30 passes, and the top of the liner 12 is provided with a window corresponding to the ventilation duct 30 . The area of the through hole 111 on the horizontal plane is larger than the area of the supporting portion 34 on the horizontal plane. When assembling the ventilation duct 30, after the box body 10 is assembled, the ventilation duct 30 is passed through the through hole 111 from top to bottom until the support part 34 is supported on the top of the inner tank 12, and the ventilation duct 30 before the box body 10 is foamed is completed. Assembling with the box body 10 , the larger area of the through hole 111 allows the support portion 34 to pass through the through hole 111 smoothly.

The outer periphery of the ventilation duct 30 is provided with a limiting portion 35 that protrudes outward from the ventilation duct 30 and is supported on the top of the case. The limiting portion 35 can further fix the position of the ventilation duct 30 before the box body 10 is foamed. Moreover, during the foaming process of the box body 10 , the limiting portion 35 can prevent the foaming material from overflowing from the gap between the ventilation duct 30 and the inner wall of the through hole 111 .

Further, the ventilation duct 30 is provided with reinforcing ribs 36 between the supporting portion 34 and the limiting portion 35 , and the overall strength of the ventilation duct 30 is improved through the reinforcing ribs 36 .

The side of the ventilation duct 30 facing the refrigerating unit 20 is provided with a heat insulation structure 37 surrounding the air inlet 32 and the air return 33 . Specifically, the heat insulation structure 37 is heat insulation materials such as heat insulation cotton and heat insulation foam pasted on the top of the ventilation duct 30 . The heat insulation structure 37 can play a role of sealing, preventing external air from entering the refrigeration unit 20 and the box body 10 from between the refrigeration unit 20 and the ventilation duct 30, and the heat insulation structure 37 can reduce the cooling capacity from the refrigeration unit 20 and the ventilation duct. 30 between drains.

Further, the air duct 30 has a filter structure 38 arranged in the air inlet 32 and the air return 33 . The filter structure 38 is used to prevent items in the storage compartment from entering the refrigeration unit 20 . The filtering structure 38 includes a plurality of first rods 381 parallel to the partition 31 and a plurality of second rods 382 perpendicular to the partition 31 . Through the staggered first rods 381 and second rods 382, the articles in the storage compartment can be effectively blocked, and it can prevent the accumulation of articles in the storage compartment from extending into the ventilation duct 30 so that the ventilation duct 30 is blocked. .

Two ends of the first rod 381 are respectively connected to the inner walls of both sides of the ventilation duct 30 , one end of the second rod 382 is connected to the inner wall of the ventilation duct 30 , and the other end is connected to the partition 31 . Therefore, the filter structure 38 can also play a role in improving the overall strength of the ventilation duct 30 .

The ventilation duct 30 and the partition 31 and the filtering structure 38 described in the utility model are integrally formed injection molded parts, so as to simplify the production process of the ventilation duct 30 and improve the assembly efficiency of the refrigeration equipment.

The series of detailed descriptions listed above are only specific descriptions for the feasible implementation modes of the present utility model, and they are not used to limit the protection scope of the present utility model. Embodiments or modifications should be included within the protection scope of the present utility model.

Claims

A refrigeration device, comprising a box body and a refrigeration unit installed outside the box body, the box body includes an outer shell, an inner tank, and a thermal insulation space arranged between the outer shell and the inner tank, the inner tank A storage compartment is formed inside, and the feature is that the refrigerating equipment further includes a ventilation duct passing through the box to communicate with the storage compartment and the interior of the refrigerating unit;

A partition is provided inside the ventilation duct, the partition divides the interior of the ventilation duct into an air inlet and an air return, and the partition is integrally formed with the inner wall of the ventilation duct.
The refrigerating device according to claim 1, wherein a thermal insulation cavity is arranged inside the partition.
The refrigerating device according to claim 2, characterized in that, the heat preservation chamber communicates with the heat preservation space.
The refrigeration device according to claim 3, wherein the ventilation duct passes through the heat preservation space, the heat preservation chamber extends to the outer wall of the ventilation duct to form an opening, and the opening is arranged in the heat preservation space Inside.
The refrigerating device according to claim 1, wherein the box body further comprises a windshield arranged inside the inner tank, and the windshield divides the inside of the inner tank to be located in front of the windshield The storage compartment and the air passage located behind the windshield, the windshield is provided with a vent connecting the storage compartment and the air passage; the air passage communicates with the air inlet, The storage compartment communicates with the air return port.
The refrigerating equipment according to claim 1, wherein the refrigerating unit is arranged above the box body, and the outer circumference of the ventilation duct is provided with a horizontally protruding ventilation duct and supported on the The support part at the top of the liner.
The refrigerating device according to claim 4, wherein the top of the housing is provided with a through hole through which the ventilation duct passes, and the area of the through hole on the horizontal plane is larger than that of the supporting part on the horizontal plane area.
The refrigerating device according to claim 5, characterized in that, the outer periphery of the ventilation duct is provided with a limiting part that protrudes outward from the ventilation duct and is supported on the top of the box shell, and the ventilation duct is located at the top of the case A reinforcing rib is provided between the supporting part and the limiting part.
The refrigerating device according to claim 1, wherein a heat insulation structure surrounding the air inlet and the air return is provided on a side of the ventilation duct facing the refrigerating unit.
The refrigerating device according to claim 1, wherein the ventilation duct has a filter structure arranged in the air inlet and the return air port, and the filter structure includes a plurality of first rods parallel to the partition part and a plurality of second rods perpendicular to the partition, the two ends of the first rod are respectively connected to the inner walls on both sides of the ventilation duct, one end of the second rod is connected to the ventilation duct The inner wall is connected, and the other end is connected with the partition.