WO2022037714A1 - Refrigerator capable of reducing heat loss of air return pipe - Google Patents

Refrigerator capable of reducing heat loss of air return pipe Download PDF

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Publication number
WO2022037714A1
WO2022037714A1 PCT/CN2021/123574 CN2021123574W WO2022037714A1 WO 2022037714 A1 WO2022037714 A1 WO 2022037714A1 CN 2021123574 W CN2021123574 W CN 2021123574W WO 2022037714 A1 WO2022037714 A1 WO 2022037714A1
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WO
WIPO (PCT)
Prior art keywords
air
evaporator
pipe
refrigerator
section
Prior art date
Application number
PCT/CN2021/123574
Other languages
French (fr)
Chinese (zh)
Inventor
王少一
陈建全
曹东强
刘建如
Original Assignee
青岛海尔特种电冰箱有限公司
青岛海尔电冰箱有限公司
海尔智家股份有限公司
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Application filed by 青岛海尔特种电冰箱有限公司, 青岛海尔电冰箱有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔特种电冰箱有限公司
Publication of WO2022037714A1 publication Critical patent/WO2022037714A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04Preventing the formation of frost or condensate

Definitions

  • the invention relates to the field of home appliances, in particular to a refrigerator with reduced heat loss in a return air pipe.
  • the evaporator is an important part of the refrigeration system.
  • the low-temperature refrigerant flows through the evaporator to exchange heat with the outside, and evaporate and absorb heat to achieve the effect of refrigeration.
  • the return pipe is the pipe connecting the evaporator and the compressor in the refrigeration system.
  • An object of the present invention is to provide a refrigerator capable of solving the above-mentioned problems with reduced heat loss from a return duct.
  • a further object of the present invention is to reduce frosting or icing in the section of the refrigerator return duct near the evaporator.
  • Another further object of the present invention is to reduce the amount of heat lost by the refrigerant as it passes through the return pipe.
  • the present invention provides a refrigerator that reduces heat loss from a return pipe
  • the refrigerator includes: a box body with a cooling chamber inside; a refrigeration system including an evaporator disposed in the cooling chamber, a compressor, and a compressor connected to the cooling chamber
  • the air return pipe between the compressor and the evaporator, the compressor is located outside the cooling chamber, and the evaporator is located inside the cooling chamber; an insulating sleeve is sleeved on at least part of the return pipe located in the cooling chamber to reduce the amount of refrigerant in the cooling chamber. Heat lost through the return trachea.
  • the heat insulation sleeve is sleeved on the section of the return air pipe located in the cooling chamber and the distance from the evaporator is less than or equal to 20 mm.
  • the length of the thermal insulation sleeve is greater than or equal to 30mm.
  • the box body has a bottom liner, and the cooling chamber is arranged at the bottom of the bottom liner; the evaporator is arranged in the front part of the cooling chamber, and the return air pipe passes through the pipe hole opened on the bottom liner for connection. compressor.
  • the pipe hole is arranged at the position where the bottom of the rear wall of the bottom liner is close to the side wall
  • the air return pipe includes: a pipe-penetrating section, which passes through the pipe hole along the depth front and rear directions of the box body; a connecting section, which is connected to the evaporator. And between the pipe-passing sections, the thermal insulation sleeve is sleeved on at least part of the connecting section.
  • the liquid accumulator is connected between the evaporator and the gas return pipe, and is arranged at the rear of the evaporator close to one side of the through-pipe section, and the connecting section further includes: a first arc-shaped connecting section, which is connected to the side of the liquid accumulator.
  • the exhaust ports are connected to each other and extend to the rear of the liquid reservoir in an arc shape;
  • the lateral pipe section extends laterally from the end of the first arc-shaped connecting section to the through-pipe section, and at least part of the lateral pipe section is sleeved with a thermal insulation sleeve;
  • Two arc-shaped connecting sections connecting the end of the transverse pipe section and the through-pipe section.
  • the evaporator is a finned evaporator, which includes: a set of fins, which are arranged in parallel along the front and rear directions of the box body; an evaporation tube, which is inserted between the fins; and support end plates, which are arranged on both sides of the fins ; The outlet of the evaporating tube is arranged at the rear of the support end plate on one side, and extends to the liquid reservoir in an arc shape.
  • the evaporator is placed obliquely along the depth direction of the refrigerator with respect to the horizontal direction, and the inclination direction is from front to back upwards.
  • the bottom liner also forms a storage space on the upper part of the cooling chamber; and the refrigerator further includes: an air duct cover plate, which is arranged in front of the rear wall of the bottom liner, and defines a space with the rear wall of the bottom liner.
  • the air duct, and the air duct cover is provided with at least one air supply port, and the air supply port is used to communicate with the air supply air duct and the storage space;
  • the air supply fan is arranged on the rear side of the evaporator, and is used to promote the formation from the front of the cooling chamber. The air is exhausted to the cooling air flow of the air supply duct through the evaporator.
  • the air supply fan is a centrifugal fan, which is arranged on the rear side of the evaporator as a whole, its air inlet is facing the evaporator, its air outlet is connected to the lower end of the air supply duct, and the center of the air inlet of the centrifugal fan reaches to the bottom of the evaporator.
  • the distances between the side panels on both sides of the bottom liner are different, and the distance from the center of the air inlet to the side wall of the bottom liner close to the tube hole is greater than the distance to the bottom liner far from the side wall of the tube hole.
  • At least part of the section of the air return pipe located in the cooling chamber is provided with an insulating sleeve, so as to reduce the heat loss of the refrigerant when passing through the air return pipe, ensure the temperature of the return air pipe, and reduce the occurrence of frost or ice formation. produce.
  • the size of the thermal insulation sleeve is limited, so that the thermal insulation sleeve can achieve the best thermal insulation effect under the condition of using the least production materials, reduce the production cost, and save more energy.
  • Environmental friendly the size of the thermal insulation sleeve is limited, so that the thermal insulation sleeve can achieve the best thermal insulation effect under the condition of using the least production materials, reduce the production cost, and save more energy.
  • FIG. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention.
  • FIG. 2 is a working principle diagram of a refrigeration system of a refrigerator according to an embodiment of the present invention
  • Fig. 3 is an enlarged view of area A in Fig. 1;
  • FIG. 4 is a schematic cross-sectional view of a refrigerator according to an embodiment of the present invention.
  • FIG. 5 is a schematic exploded view of a refrigerator according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a bottom inner tank of a refrigerator according to an embodiment of the present invention.
  • FIG. 7 is a structural diagram of a limiting member of a refrigerator according to an embodiment of the present invention.
  • this embodiment first provides a refrigerator 10 .
  • the evaporator 130 of the refrigerator 10 is arranged at the bottom of the box body 100 .
  • the bottom inner container 110 defines a cooling chamber 112 and a storage space 111 , and the cooling chamber 112 is disposed below the storage space 111 .
  • the front side of the box body 100 is also provided with a door body to open or close the storage space 111. In order to show the internal structure of the box body 100, the door body is hidden in the figure.
  • the refrigerator 10 may have a plurality of inner containers, which can be divided into a freezing inner container, a temperature-changing inner container, and a refrigerating inner container according to their functions, thereby defining a plurality of storage compartments: such as a refrigerating compartment, a temperature-changing compartment, and a refrigerating compartment. Freezer compartment.
  • the bottom inner container 110 in this embodiment refers to the inner container located at the bottom of the refrigerator 10 .
  • the bottom inner container 110 located at the bottom of the refrigerator 10 defines a storage space 111 and a cooling chamber 112 located below the storage space 111 through a partition plate.
  • the storage space 111 defined by the bottom inner container 110 may be a freezing compartment.
  • above the storage space 111 there may also be a temperature-changing compartment defined by other inner bladders of the refrigerator 10, and a refrigerating compartment located above the temperature-changing compartment.
  • this embodiment includes a refrigeration system.
  • the refrigeration system includes a throttling element 210 , an evaporator 130 , a cooling fan, a compressor 200 , a condenser 190 and a return pipe 140 .
  • the evaporator 130 is disposed in the cooling chamber 112 .
  • the refrigeration system of this embodiment further includes a return air pipe 140 connected between the compressor 200 and the evaporator 130 .
  • the compressor 200 is located outside the cooling chamber 112 .
  • the evaporator 130 is in the shape of a flat cuboid as a whole, and is arranged at the front of the cooling chamber 112 .
  • the air return pipe 140 passes through the pipe hole opened on the bottom inner bladder 110 for connecting to the compressor 200 .
  • the bottom inner bladder 110 is provided with a limiting member 150 for fixing the air return tube 140 at a position close to the tube hole. Since the circulation structure and working principle of the refrigeration system itself are well known to those skilled in the art and are easy to implement, in order not to obscure and obscure the improvement points of the present application, the refrigeration system itself will not be described in detail below.
  • the present embodiment is provided with an insulating sleeve 145 .
  • the thermal insulation sleeve 145 is sleeved on at least a part of the section of the air return pipe 140 located in the cooling chamber 112, so as to reduce the heat loss of the refrigerant when passing through the air return pipe 140, and reduce the risk of frost or ice formation. situation happens.
  • the inner diameter of the heat insulation sleeve 145 can be matched with the outer diameter of the air return pipe 140 , so that the integrity of the heat insulation sleeve 145 and the air return hood is stronger, and the heat preservation and heat insulation performance is better when the sleeve is more tightly installed.
  • the pipe hole is arranged at a position where the bottom of the rear wall of the bottom inner bladder 110 is close to the side wall, and the air return pipe 140 may include a pipe penetration section 141 , which passes through the pipe hole along the depth front and rear directions of the box body 100 , and the limiter 150 It is arranged on the side wall of the bottom inner container 110 and is opposite to the through-pipe section 141 .
  • the installation of the air return pipe 140 is more convenient, and the internal pipeline arrangement is more reasonable and neat, which further makes the internal space of the box body 100 more compact and the space utilization rate is higher.
  • the pipe hole is arranged on the right rear side of the box body 100 , and the air return pipe 140 passes through the bottom inner tank 110 through the pipe hole, so as to connect the evaporator 130 with the compressor 200 .
  • a pipe penetrating section 141 is provided at the position where the air return pipe 140 passes through the pipe hole, and a pipe sleeve may also be provided on the pipe penetrating section 141 to protect the pipe penetrating section 141 and prevent the air return pipe from being damaged during the foaming process of the refrigerator 10 . 140 is squeezed and deformed, and at the same time, the overflow of the foamed material from the pipe hole is further prevented.
  • the limiter 150 is provided on the right side wall of the bottom inner pot 110 to limit the position of the air return pipe 140 to prevent the air return pipe 140 from being vibrated and other components occurring during the transportation of the refrigerator 10 . collision, thereby affecting the normal function of the refrigerator 10 .
  • the heat insulation sleeve 145 is sleeved on the section of the air return pipe 140 located in the cooling chamber 112 and the distance from the evaporator 130 is less than or equal to 20mm. According to the actual measurement by the inventor, the heat loss of the air return pipe 140 in this section is the largest.
  • the section is sleeved with a thermal insulation sleeve 145, and the thermal insulation effect is the best.
  • the length of the thermal insulation sleeve 145 is greater than or equal to 30mm, preferably set to 30mm. Increasing the length of the thermal insulation sleeve 145 can make the overall thermal insulation performance of the air return pipe 140 better.
  • the thermal insulation sleeve 145 is set to 30mm, which not only reduces the heat loss of the return air pipe 140, but also reduces the impact on the cooling airflow.
  • the length and setting position of the above-mentioned thermal insulation sleeve 145 are structurally optimized according to production cost requirements and thermal insulation performance requirements.
  • the heat insulating sleeve 145 is made of heat insulating material, such as foam material, glass fiber wool board, etc., and is placed against the outer wall of the air return pipe 140 .
  • the limiting member 150 may include a base plate 151 and a support column 152 .
  • the base plate 151 is attached to the outer side of the bottom inner pot 110 .
  • the support column 152 protrudes from the base plate 151 into the cooling chamber 112 , wherein the bottom liner 110 is provided with a through hole for the support column 152 to pass through at the corresponding position of the support column 152 , and the end of the support column 152 is shaped to be connected with the through-pipe section. 141 to fit the elastic tube clip 153.
  • the substrate 151 is attached to the outer side of the bottom inner pot 110 , so that the through hole of the bottom inner pot 110 for passing through the support column 152 is completely blocked by the substrate 151 itself, thereby avoiding the occurrence of the refrigerator 10 .
  • the foamed material overflows into the interior of the bottom inner pot 110 from the gap of the through hole.
  • the solution of this embodiment sets the end of the support column 152 as an elastic tube clip 153, which not only makes the fitting and installation between the air return tube 140 and the limiting member 150 more labor-saving, but also facilitates subsequent maintenance and disassembly.
  • the base plate 151 and the bottom inner pot 110 can be clamped by a clamping structure.
  • the base plate 151 is provided with a slot 154
  • the bottom inner container 110 is provided with a clamping claw 155, so that the base plate 151 and the bottom container 110 are connected by means of a buckle, which is not only simple in structure, but also easy to install.
  • the refrigerator 10 may also include a reservoir 160 .
  • the liquid accumulator 160 is connected between the evaporator 130 and the gas return pipe 140 , and is arranged at the rear of the evaporator 130 near the side of the through-pipe section 141 .
  • the air return pipe 140 may further include a connecting section.
  • the connecting section is connected between the evaporator 130 and the through-pipe section 141, and the heat insulating sleeve 145 is sleeved on at least part of the connecting section.
  • the connecting section includes a first arc-shaped connecting section 142 , a transverse pipe section 143 , and a second arc-shaped connecting section 144 .
  • the first arc-shaped connecting section 142 is connected to the exhaust port of the liquid storage tank 160 , and the arc shape extends to the rear of the liquid storage tank 160 .
  • the lateral pipe section 143 extends laterally from the end of the first arc-shaped connecting section 142 to the through-pipe section 141 .
  • the second arc-shaped connecting section 144 connects the end of the transverse pipe section 143 and the passing pipe section 141 .
  • the air return pipe 140 includes a first arc-shaped connecting section 142 , a transverse pipe section 143 and a second arc-shaped connecting section 144 . Its structure is more reasonable and scientific, and it occupies less space, which is more in line with the internal structure of the cooling chamber 112 . Improve the rational utilization of space.
  • the heat insulating sleeve 145 is sleeved over at least a part of the transverse pipe section 143 .
  • the transverse pipe section 143 is located at the transverse rear of the evaporator 130. When the cooling air flows through this section, it is very easy to exchange heat with the air flow, resulting in heat loss. Risk of frost or freezing.
  • the liquid accumulator 160 is arranged on the air return pipe 140, so as to collect a small amount of liquid carried in the air entering the air return pipe 140, so as to prevent the liquid from entering the compressor 200, which is detrimental to the operation of the compressor 200. influence.
  • the air return pipe 140 includes a first arc-shaped connecting section 142, a transverse pipe section 143 and a second arc-shaped connecting section 144. The structure is more reasonable and scientific, and the space occupied is small, which improves the reasonable utilization of space.
  • the evaporator 130 is a fin evaporator, and the fin evaporator 130 may include: a set of fins (not shown in the figure), an evaporation tube (not shown in the figure), and a supporting end plate 131 .
  • a group of fins are arranged in parallel along the front-rear direction of the box body 100 .
  • the evaporating tube is inserted between the fins.
  • the support end plates 131 are disposed on both sides of the fins.
  • the outlet of the evaporating tube is disposed at the rear of the one side support end plate 131 and extends to the liquid reservoir 160 in an arc shape.
  • the solution of this embodiment adopts the finned evaporator 130 , which not only has a compact structure and a small occupied area, but also has a high heat transfer coefficient, thereby further improving the heat exchange efficiency of the evaporator 130 and ensuring the refrigeration and storage function of the refrigerator 10 .
  • the evaporator 130 may be inclined along the depth direction of the refrigerator 10 with respect to the horizontal direction, and the inclination direction is from front to back and upward.
  • the evaporator 130 is arranged obliquely in the cooling chamber 112, on the one hand, the depth dimension (distance in the front-rear direction) of the box body 100 is reduced, and the depth dimension is used for the storage space 111 as much as possible; on the other hand, since the storage space 111
  • the raised bottom also avoids the inconvenience caused by users needing to bend or squat down to pick up and place items.
  • the refrigerator 10 may further include an air duct cover 170 and an air blower 180 .
  • the air duct cover 170 is arranged in front of the rear wall of the bottom inner pot 110, and defines an air supply air duct with the rear wall of the bottom inner pot 110, and the air duct cover 170 is provided with at least one air supply port, and the air supply port is used for The air supply duct and the storage space 111 are communicated.
  • the air blower 180 is disposed on the rear side of the evaporator 130 , and is used to promote the formation of a cooling airflow that is discharged from the air in front of the cooling chamber 112 to the air supply duct through the evaporator 130 .
  • an air duct cover 170 and an air blower 180 are arranged at the rear of the bottom inner pot 110 , thereby increasing the circulation rate of the cooling air flowing from the cooling chamber 112 into the storage space 111 , and further ensuring the cooling storage of the refrigerator 10 . Effect.
  • one or more air supply openings may be provided.
  • an air supply opening is provided on the air duct cover plate 170 to make the air supply more uniform and smooth.
  • the front ends of the support end plates 131 also extend to two sides to form shielding plates 132 for shielding the gap between the evaporator 130 and the side wall of the cooling chamber 112 to prevent air from passing through the outside of the evaporator 130 on both sides.
  • a shielding plate 132 is provided at the front end of the supporting end plate 131 of the evaporator 130 , so that the air in the cooling chamber 112 can only flow into the rear through the evaporator 130 , preventing the air from flowing from both sides of the evaporator 130 , thereby affecting the cooling effect of the refrigerator 10 .
  • the shielding plate 132 in this embodiment is formed by extending the support end plate 131 , which is not only simple in structure, but also more stable.
  • the air supply fan 180 of the refrigerator 10 may be a centrifugal fan 183, which is integrally disposed on the rear side of the evaporator 130 obliquely.
  • the distance from the center of the air inlet 181 of the fan 183 to the side panels on both sides of the bottom inner pot 110 is different, and the distance from the center of the air inlet 181 to the bottom inner pot 110 close to the side wall of the air return pipe 140 is greater than the distance from the bottom inner pot 110 away from the side wall.
  • the distance from one side wall of the air return pipe 140 The horizontal position of the centrifugal fan 183 in the bottom liner 110 can provide space for the arrangement of the liquid reservoir 160 and the air return pipe 140 , and can also avoid heat loss caused by the air blowing straight back to the air pipe 140 .
  • the air supply fan 180 used in the solution of this embodiment is a centrifugal fan 183, which runs smoothly, is easy to maintain, and is durable. Further, the centrifugal fan 183 in this embodiment is set so that the distance from the center of the air inlet 181 to the side wall of the bottom inner bladder 110 close to the side wall of the air return pipe 140 is greater than the distance to the side wall of the bottom inner bladder 110 away from the side wall of the air return pipe 140 .
  • the distance, that is to say, the center of the air inlet 181 of the air blower 180 is inclined to the left wall of the bottom inner tank 110, that is, the air supply fan 180 is arranged at the position where the bottom inner tank 110 is biased to the left, so that the cooling air flows from the fan to the left.
  • the airflow from the air outlet to the air supply air duct is smoother, thereby further improving the air supply efficiency of the fan.
  • the setting of the installation position of the above centrifugal fan 183 is a structural optimization made according to the space requirements and the cooling performance requirements, and the effect verification of the trial product is obtained.
  • At least a part of the air return pipe 140 is located in the cooling chamber 112 is provided with an insulating sleeve 145 to reduce the heat loss of the refrigerant when passing through the air return pipe 140 and ensure the temperature of the air return pipe 140, thereby Reduce the occurrence of frost or icing.
  • the size of the thermal insulation sleeve 145 is limited in the above embodiment, which can achieve the best thermal insulation effect under the condition of using the least manufacturing materials, reduce the production cost, and be more energy-saving and environmentally friendly.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

Provided is a refrigerator capable of reducing heat loss of an air return pipe. The refrigerator comprises: a refrigerator body having a cooling chamber arranged inside thereof; a refrigeration system comprising an evaporator arranged in the cooling chamber, a compressor, and an air return pipe connected between the compressor and the evaporator, the compressor being outside of the cooling chamber, and the evaporator being inside the cooling chamber; a heat insulation sleeve sleeved on at least part of the section of the air return pipe located in the cooling chamber, such as to reduce heat loss when a refrigerant passes through the air return pipe. The present refrigerator is provided with the heat insulation sleeve on at least part of the section of the air return pipe located in the cooling chamber, such as to reduce the heat loss when the refrigerant passes through the air return pipe, and to ensure the temperature of the air return pipe, thereby reducing frosting or freezing.

Description

减小回气管热量损失的冰箱Refrigerator to reduce heat loss in return duct 技术领域technical field
本发明涉及家电领域,特别是涉及一种减小回气管热量损失的冰箱。The invention relates to the field of home appliances, in particular to a refrigerator with reduced heat loss in a return air pipe.
背景技术Background technique
蒸发器是制冷系统中重要的部件,低温的冷媒流经蒸发器,与外部进行热交换,蒸发吸热,达到制冷的效果。回气管是制冷系统中连接蒸发器与压缩机的管路。现有技术中的蒸发器底置冰箱在正常工作时,冰箱回气管与蒸发器之间非常容易结霜,甚至结冰,降低了制冷效率。The evaporator is an important part of the refrigeration system. The low-temperature refrigerant flows through the evaporator to exchange heat with the outside, and evaporate and absorb heat to achieve the effect of refrigeration. The return pipe is the pipe connecting the evaporator and the compressor in the refrigeration system. When the evaporator bottom refrigerator in the prior art works normally, frost is very easy to form between the air return pipe of the refrigerator and the evaporator, or even freezes, which reduces the refrigeration efficiency.
发明内容SUMMARY OF THE INVENTION
本发明的一个目的是要提供一种能够解决上述问题的减小回气管热量损失的冰箱。An object of the present invention is to provide a refrigerator capable of solving the above-mentioned problems with reduced heat loss from a return duct.
本发明一个进一步的目的是要减少冰箱回气管靠近蒸发器区段的结霜或结冰现象。A further object of the present invention is to reduce frosting or icing in the section of the refrigerator return duct near the evaporator.
本发明另一个进一步的目的是要减少制冷剂在通过回气管时损失的热量。Another further object of the present invention is to reduce the amount of heat lost by the refrigerant as it passes through the return pipe.
特别地,本发明提供了一种减小回气管热量损失的冰箱,该冰箱包括:箱体,其内部具有冷却室;制冷系统,其包括设置于冷却室内的蒸发器、压缩机以及连接于压缩机和蒸发器之间的回气管,压缩机位于冷却室的外部,蒸发器位于冷却室内部;隔热套管,套设于回气管位于冷却室内的至少部分区段上,以减少制冷剂在通过回气管时损失的热量。In particular, the present invention provides a refrigerator that reduces heat loss from a return pipe, the refrigerator includes: a box body with a cooling chamber inside; a refrigeration system including an evaporator disposed in the cooling chamber, a compressor, and a compressor connected to the cooling chamber The air return pipe between the compressor and the evaporator, the compressor is located outside the cooling chamber, and the evaporator is located inside the cooling chamber; an insulating sleeve is sleeved on at least part of the return pipe located in the cooling chamber to reduce the amount of refrigerant in the cooling chamber. Heat lost through the return trachea.
进一步地,隔热套管套设于回气管位于冷却室内且与蒸发器距离小于或等于20mm的区段上。Further, the heat insulation sleeve is sleeved on the section of the return air pipe located in the cooling chamber and the distance from the evaporator is less than or equal to 20 mm.
进一步地,隔热套管的长度大于或等于30mm。Further, the length of the thermal insulation sleeve is greater than or equal to 30mm.
进一步地,箱体,具有底部内胆,并且冷却室设置于底部内胆的底部;蒸发器,布置于冷却室的前部,回气管通过底部内胆上开设的管孔穿出,以供连接压缩机。Further, the box body has a bottom liner, and the cooling chamber is arranged at the bottom of the bottom liner; the evaporator is arranged in the front part of the cooling chamber, and the return air pipe passes through the pipe hole opened on the bottom liner for connection. compressor.
进一步地,管孔设置于底部内胆的后壁底部靠近于侧壁的位置,并且回气管包括:穿管段,穿管段沿箱体的纵深前后方向穿出管孔;连接段,连接于蒸发器以及穿管段之间,隔热套管套设于连接段的至少部分区段上。Further, the pipe hole is arranged at the position where the bottom of the rear wall of the bottom liner is close to the side wall, and the air return pipe includes: a pipe-penetrating section, which passes through the pipe hole along the depth front and rear directions of the box body; a connecting section, which is connected to the evaporator. And between the pipe-passing sections, the thermal insulation sleeve is sleeved on at least part of the connecting section.
进一步地,储液器,连接于蒸发器与回气管之间,其布置于蒸发器的后部靠近穿管段的一侧,并且连接段还包括:第一弧形连接段,与储液器的排气口相连,弧形延伸至储液器的后部;横向管段,从第一弧形连接段的末端横向向穿管段延伸,横向管段的至少部分区段上套接隔热套管;第二弧形连接段,连接横向管段的末端与穿管段。Further, the liquid accumulator is connected between the evaporator and the gas return pipe, and is arranged at the rear of the evaporator close to one side of the through-pipe section, and the connecting section further includes: a first arc-shaped connecting section, which is connected to the side of the liquid accumulator. The exhaust ports are connected to each other and extend to the rear of the liquid reservoir in an arc shape; the lateral pipe section extends laterally from the end of the first arc-shaped connecting section to the through-pipe section, and at least part of the lateral pipe section is sleeved with a thermal insulation sleeve; Two arc-shaped connecting sections, connecting the end of the transverse pipe section and the through-pipe section.
进一步地,蒸发器为翅片蒸发器,其包括:一组翅片,沿箱体的前后方向平行设置;蒸发管,穿设于翅片之间;支撑端板,设置于翅片的两侧;蒸发管的出口设置于一侧支撑端板的后部,并弧形延伸至储液器。Further, the evaporator is a finned evaporator, which includes: a set of fins, which are arranged in parallel along the front and rear directions of the box body; an evaporation tube, which is inserted between the fins; and support end plates, which are arranged on both sides of the fins ; The outlet of the evaporating tube is arranged at the rear of the support end plate on one side, and extends to the liquid reservoir in an arc shape.
进一步地,蒸发器相对于水平方向沿冰箱的进深方向倾斜放置,倾斜方向为从前至后向上。Further, the evaporator is placed obliquely along the depth direction of the refrigerator with respect to the horizontal direction, and the inclination direction is from front to back upwards.
进一步地,底部内胆在冷却室的上部还形成有储物空间;并且冰箱还包括:风道盖板,设置于底部内胆的后壁的前方,并与底部内胆的后壁限定出送风风道,并且风道盖板开设有至少一个送风口,送风口用于连通送风风道以及储物空间;送风风机,设置于蒸发器的后侧,并用于促使形成从冷却室前方的空气经由蒸发器排向送风风道的制冷气流。Further, the bottom liner also forms a storage space on the upper part of the cooling chamber; and the refrigerator further includes: an air duct cover plate, which is arranged in front of the rear wall of the bottom liner, and defines a space with the rear wall of the bottom liner. The air duct, and the air duct cover is provided with at least one air supply port, and the air supply port is used to communicate with the air supply air duct and the storage space; the air supply fan is arranged on the rear side of the evaporator, and is used to promote the formation from the front of the cooling chamber. The air is exhausted to the cooling air flow of the air supply duct through the evaporator.
进一步地,送风风机为离心风机,整体倾斜地设置于蒸发器的后侧,其进风口朝向蒸发器,其排风口与送风风道下端相接,并且离心风机的进风口的中心至底部内胆两侧侧板的距离不同,进风口的中心至底部内胆靠近于管孔一侧侧壁的距离大于至底部内胆远离于管孔一侧侧壁的距离。Further, the air supply fan is a centrifugal fan, which is arranged on the rear side of the evaporator as a whole, its air inlet is facing the evaporator, its air outlet is connected to the lower end of the air supply duct, and the center of the air inlet of the centrifugal fan reaches to the bottom of the evaporator. The distances between the side panels on both sides of the bottom liner are different, and the distance from the center of the air inlet to the side wall of the bottom liner close to the tube hole is greater than the distance to the bottom liner far from the side wall of the tube hole.
本发明的冰箱在回气管位于冷却室内的至少部分区段设置有隔热套管,以减少制冷剂在通过回气管时损失的热量,保证回气管的温度,从而减少结霜或结冰现象的产生。In the refrigerator of the present invention, at least part of the section of the air return pipe located in the cooling chamber is provided with an insulating sleeve, so as to reduce the heat loss of the refrigerant when passing through the air return pipe, ensure the temperature of the return air pipe, and reduce the occurrence of frost or ice formation. produce.
进一步地,本发明的冰箱对隔热套管进行了尺寸限制,可以使得隔热套管在使用最少的制作材料的情况下起到最好的隔热保温效果,降低生产成本,也更加的节能环保。Further, in the refrigerator of the present invention, the size of the thermal insulation sleeve is limited, so that the thermal insulation sleeve can achieve the best thermal insulation effect under the condition of using the least production materials, reduce the production cost, and save more energy. Environmental friendly.
根据下文结合附图对本发明具体实施例的详细描述,本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.
附图说明Description of drawings
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域 技术人员应该理解,这些附图未必是按比例绘制的。附图中:Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. Those skilled in the art will understand that the drawings are not necessarily to scale. In the attached picture:
图1是根据本发明一个实施例的冰箱的示意性结构图;1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
图2是根据本发明一个实施例的冰箱的制冷系统工作原理图;FIG. 2 is a working principle diagram of a refrigeration system of a refrigerator according to an embodiment of the present invention;
图3是图1中区域A的放大图;Fig. 3 is an enlarged view of area A in Fig. 1;
图4是根据本发明一个实施例的冰箱的示意性剖视图;4 is a schematic cross-sectional view of a refrigerator according to an embodiment of the present invention;
图5是根据本发明一个实施例的冰箱的示意性分解图;5 is a schematic exploded view of a refrigerator according to an embodiment of the present invention;
图6是根据本发明一个实施例的冰箱的底部内胆的结构图;6 is a structural diagram of a bottom inner tank of a refrigerator according to an embodiment of the present invention;
图7是根据本发明一个实施例的冰箱的限位件的结构图。FIG. 7 is a structural diagram of a limiting member of a refrigerator according to an embodiment of the present invention.
具体实施方式detailed description
在本实施例的描述中,需要理解的是,术语“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“水平”、“底”、“进深”、“纵深”等指示的方位或位置关系为基于冰箱10正常使用状态下的方位作为参考,并参考附图所示的方位或位置关系可以确定,例如指示方位的“前”指的是冰箱10朝向用户的一侧。这仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。In the description of this embodiment, it should be understood that the terms "horizontal", "upper", "lower", "front", "rear", "left", "right", "horizontal", "bottom", The orientation or positional relationship indicated by "depth", "depth", etc. is based on the orientation of the refrigerator 10 in the normal use state as a reference, and can be determined with reference to the orientation or positional relationship shown in the accompanying drawings, for example, the "front" indicating the orientation refers to It is the side of the refrigerator 10 facing the user. This is only to facilitate the description of the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention.
如图1所示,本实施例首先提供了一种冰箱10,该冰箱10的蒸发器130布置于箱体100底部,冰箱10一般性地包括箱体100,箱体100具有底部内胆110,底部内胆110限定有冷却室112和储物空间111,冷却室112设置于储物空间111的下方。箱体100前侧还设置有门体,以打开或关闭储物空间111,为了示出箱体100内部结构,图中隐去了门体。As shown in FIG. 1 , this embodiment first provides a refrigerator 10 . The evaporator 130 of the refrigerator 10 is arranged at the bottom of the box body 100 . The bottom inner container 110 defines a cooling chamber 112 and a storage space 111 , and the cooling chamber 112 is disposed below the storage space 111 . The front side of the box body 100 is also provided with a door body to open or close the storage space 111. In order to show the internal structure of the box body 100, the door body is hidden in the figure.
一般性地,冰箱10可以有多个内胆,根据其功能可以划分为冷冻内胆、变温内胆、以及冷藏内胆,从而限定出多个储藏间室:例如冷藏间室、变温间室和冷冻间室。本实施例中的底部内胆110指位于冰箱10最下方的内胆。Generally, the refrigerator 10 may have a plurality of inner containers, which can be divided into a freezing inner container, a temperature-changing inner container, and a refrigerating inner container according to their functions, thereby defining a plurality of storage compartments: such as a refrigerating compartment, a temperature-changing compartment, and a refrigerating compartment. Freezer compartment. The bottom inner container 110 in this embodiment refers to the inner container located at the bottom of the refrigerator 10 .
在本实施例中,位于冰箱10底部的底部内胆110通过分隔板限定出储物空间111以及位于储物空间111的下方的冷却室112。其中,底部内胆110限定的储物空间111可以为冷冻间室。此外,储物空间111上方还可以有冰箱10其它内胆限定出的变温间室,以及位于变温间室上方的冷藏间室。In this embodiment, the bottom inner container 110 located at the bottom of the refrigerator 10 defines a storage space 111 and a cooling chamber 112 located below the storage space 111 through a partition plate. Wherein, the storage space 111 defined by the bottom inner container 110 may be a freezing compartment. In addition, above the storage space 111, there may also be a temperature-changing compartment defined by other inner bladders of the refrigerator 10, and a refrigerating compartment located above the temperature-changing compartment.
参见图2,本实施例包括制冷系统。制冷系统包括节流元件210、蒸发器130、制冷风机、压缩机200、冷凝器190以及回气管140。蒸发器130 设置于冷却室112内。本实施例的制冷系统还包括连接于压缩机200和蒸发器130之间的回气管140。压缩机200位于冷却室112的外部。蒸发器130整体呈扁平长方体状,布置于所述冷却室112的前部。回气管140通过底部内胆110上开设的管孔穿出,以供连接压缩机200。底部内胆110在靠近于管孔的位置处设置有用于固定回气管140的限位件150。由于制冷系统本身的循环构造以及工作原理,为本领域技术人员习知且易于实现的,为了不掩盖和模糊本申请的改进点,后文对制冷系统本身不做赘述。Referring to Figure 2, this embodiment includes a refrigeration system. The refrigeration system includes a throttling element 210 , an evaporator 130 , a cooling fan, a compressor 200 , a condenser 190 and a return pipe 140 . The evaporator 130 is disposed in the cooling chamber 112 . The refrigeration system of this embodiment further includes a return air pipe 140 connected between the compressor 200 and the evaporator 130 . The compressor 200 is located outside the cooling chamber 112 . The evaporator 130 is in the shape of a flat cuboid as a whole, and is arranged at the front of the cooling chamber 112 . The air return pipe 140 passes through the pipe hole opened on the bottom inner bladder 110 for connecting to the compressor 200 . The bottom inner bladder 110 is provided with a limiting member 150 for fixing the air return tube 140 at a position close to the tube hole. Since the circulation structure and working principle of the refrigeration system itself are well known to those skilled in the art and are easy to implement, in order not to obscure and obscure the improvement points of the present application, the refrigeration system itself will not be described in detail below.
如图3所示,本实施例设置有隔热套管145。隔热套管145套设于所述回气管140位于所述冷却室112内的至少部分区段上,以减少制冷剂在通过所述回气管140时损失的热量,减少结霜或结冰的情况发生。隔热套管145内径可与回气管140的外径相贴合,使得隔热套管145与回风罩的整体性更强,套设更紧密保温隔热性能更好。As shown in FIG. 3 , the present embodiment is provided with an insulating sleeve 145 . The thermal insulation sleeve 145 is sleeved on at least a part of the section of the air return pipe 140 located in the cooling chamber 112, so as to reduce the heat loss of the refrigerant when passing through the air return pipe 140, and reduce the risk of frost or ice formation. situation happens. The inner diameter of the heat insulation sleeve 145 can be matched with the outer diameter of the air return pipe 140 , so that the integrity of the heat insulation sleeve 145 and the air return hood is stronger, and the heat preservation and heat insulation performance is better when the sleeve is more tightly installed.
如图4-图6所示。管孔设置于底部内胆110的后壁底部靠近于侧壁的位置,并且回气管140可以包括穿管段141,穿管段141沿箱体100的纵深前后方向穿出管孔,并且限位件150设置于底部内胆110的侧壁上,并与穿管段141相对。通过该穿管结构,回气管140的安装更方便,且使得内部管线布置更合理整洁,进一步使得箱体100内部空间更加紧凑,空间利用率更高。As shown in Figure 4-6. The pipe hole is arranged at a position where the bottom of the rear wall of the bottom inner bladder 110 is close to the side wall, and the air return pipe 140 may include a pipe penetration section 141 , which passes through the pipe hole along the depth front and rear directions of the box body 100 , and the limiter 150 It is arranged on the side wall of the bottom inner container 110 and is opposite to the through-pipe section 141 . Through the pipe-penetrating structure, the installation of the air return pipe 140 is more convenient, and the internal pipeline arrangement is more reasonable and neat, which further makes the internal space of the box body 100 more compact and the space utilization rate is higher.
本实施例的方案将管孔设置于箱体100右后侧,回气管140通过管孔穿过底部内胆110,从而将蒸发器130与压缩机200相连。其中,在回气管140穿过管孔的位置处设置穿管段141,穿管段141上还可以设有管套,以对穿管段141起保护作用,避免在冰箱10的发泡过程中,回气管140受到挤压变形,同时也进一步避免发泡材料从管孔处溢出。此外,本实施例的方案通过底部内胆110的右侧壁上设置限位件150,从而对回气管140进行限位,避免在冰箱10的运输工程中,回气管140受到震荡与其它部件发生碰撞,从而影响冰箱10的正常功能。In the solution of this embodiment, the pipe hole is arranged on the right rear side of the box body 100 , and the air return pipe 140 passes through the bottom inner tank 110 through the pipe hole, so as to connect the evaporator 130 with the compressor 200 . Wherein, a pipe penetrating section 141 is provided at the position where the air return pipe 140 passes through the pipe hole, and a pipe sleeve may also be provided on the pipe penetrating section 141 to protect the pipe penetrating section 141 and prevent the air return pipe from being damaged during the foaming process of the refrigerator 10 . 140 is squeezed and deformed, and at the same time, the overflow of the foamed material from the pipe hole is further prevented. In addition, in the solution of the present embodiment, the limiter 150 is provided on the right side wall of the bottom inner pot 110 to limit the position of the air return pipe 140 to prevent the air return pipe 140 from being vibrated and other components occurring during the transportation of the refrigerator 10 . collision, thereby affecting the normal function of the refrigerator 10 .
隔热套管145套设于回气管140位于冷却室112内且与蒸发器130距离小于或等于20mm的区段上,经发明人实际测量,该区段的回气管140热量损失最大,将该区段套设隔热套管145,隔热保温效果最佳。隔热套管145的长度大于或等于30mm,优选设置为30mm。增加隔热套管145的长度可使得回气管140整体保温隔热性能更好,但过多使用隔热套管145会使得产品的成本增加,且不利于节能环保,所以将隔热套管145的长度设置为30mm 即减少了回气管140热量流失,又可以减少对制冷气流的影响。上述隔热套管145的长度以及设置位置是根据生产成本要求和保温性能要求进行的结构性优化。隔热套管145由隔热材料制成,例如泡沫材料、玻璃纤维棉板等,贴靠于回气管140的外壁设置。The heat insulation sleeve 145 is sleeved on the section of the air return pipe 140 located in the cooling chamber 112 and the distance from the evaporator 130 is less than or equal to 20mm. According to the actual measurement by the inventor, the heat loss of the air return pipe 140 in this section is the largest. The section is sleeved with a thermal insulation sleeve 145, and the thermal insulation effect is the best. The length of the thermal insulation sleeve 145 is greater than or equal to 30mm, preferably set to 30mm. Increasing the length of the thermal insulation sleeve 145 can make the overall thermal insulation performance of the air return pipe 140 better. However, excessive use of the thermal insulation sleeve 145 will increase the cost of the product, and is not conducive to energy conservation and environmental protection. Therefore, the thermal insulation sleeve 145 The length of 140 is set to 30mm, which not only reduces the heat loss of the return air pipe 140, but also reduces the impact on the cooling airflow. The length and setting position of the above-mentioned thermal insulation sleeve 145 are structurally optimized according to production cost requirements and thermal insulation performance requirements. The heat insulating sleeve 145 is made of heat insulating material, such as foam material, glass fiber wool board, etc., and is placed against the outer wall of the air return pipe 140 .
限位件150可以包括基板151和支撑柱152。基板151贴靠于底部内胆110的外侧。支撑柱152从基板151向冷却室112内伸出,其中底部内胆110在支撑柱152的对应位置处设置有供支撑柱152穿入的通孔,并且支撑柱152的末端成形为与穿管段141适配的弹性管卡153。The limiting member 150 may include a base plate 151 and a support column 152 . The base plate 151 is attached to the outer side of the bottom inner pot 110 . The support column 152 protrudes from the base plate 151 into the cooling chamber 112 , wherein the bottom liner 110 is provided with a through hole for the support column 152 to pass through at the corresponding position of the support column 152 , and the end of the support column 152 is shaped to be connected with the through-pipe section. 141 to fit the elastic tube clip 153.
本实施例的方案,基板151贴靠于底部内胆110的外侧,从而利用基板151本身将底部内胆110上用于穿过支撑柱152的通孔完全遮挡,进而避免了在冰箱10的发泡工艺过程中,发泡材料从通孔的缝隙处溢入底部内胆110的内部。此外,本实施例的方案将支撑柱152的末端设置为弹性管卡153,不仅使得回气管140与限位件150之间的配合安装更加省力,而且便于后续的维护拆卸。In the solution of this embodiment, the substrate 151 is attached to the outer side of the bottom inner pot 110 , so that the through hole of the bottom inner pot 110 for passing through the support column 152 is completely blocked by the substrate 151 itself, thereby avoiding the occurrence of the refrigerator 10 . During the foaming process, the foamed material overflows into the interior of the bottom inner pot 110 from the gap of the through hole. In addition, the solution of this embodiment sets the end of the support column 152 as an elastic tube clip 153, which not only makes the fitting and installation between the air return tube 140 and the limiting member 150 more labor-saving, but also facilitates subsequent maintenance and disassembly.
基板151与底部内胆110可以通过卡接结构卡接。例如,基板151上设置卡槽154,底部内胆110上设置卡爪155,使得基板151与底部内胆110通过卡扣的方式相接,不仅结构简单,而且易于安装。The base plate 151 and the bottom inner pot 110 can be clamped by a clamping structure. For example, the base plate 151 is provided with a slot 154, and the bottom inner container 110 is provided with a clamping claw 155, so that the base plate 151 and the bottom container 110 are connected by means of a buckle, which is not only simple in structure, but also easy to install.
冰箱10还可以包括储液器160。储液器160连接于蒸发器130与回气管140之间,其布置于蒸发器130的后部靠近穿管段141的一侧。并且回气管140还可以包括连接段。连接段连接于蒸发器130以及穿管段141之间,隔热套管145套设于连接段的至少部分区段上。The refrigerator 10 may also include a reservoir 160 . The liquid accumulator 160 is connected between the evaporator 130 and the gas return pipe 140 , and is arranged at the rear of the evaporator 130 near the side of the through-pipe section 141 . And the air return pipe 140 may further include a connecting section. The connecting section is connected between the evaporator 130 and the through-pipe section 141, and the heat insulating sleeve 145 is sleeved on at least part of the connecting section.
连接段包括第一弧形连接段142、横向管段143、第二弧形连接段144。第一弧形连接段142与储液器160的排气口相连,弧形延伸至储液器160的后部。横向管段143从第一弧形连接段142的末端横向向穿管段141延伸。第二弧形连接段144连接横向管段143的末端与穿管段141。本实施例的方案中回气管140包括第一弧形连接段142、横向管段143和第二弧形连接段144,其结构更加合理科学,而且占用空间小,更加符合冷却室112的内部构造,提高了空间的合理利用率。The connecting section includes a first arc-shaped connecting section 142 , a transverse pipe section 143 , and a second arc-shaped connecting section 144 . The first arc-shaped connecting section 142 is connected to the exhaust port of the liquid storage tank 160 , and the arc shape extends to the rear of the liquid storage tank 160 . The lateral pipe section 143 extends laterally from the end of the first arc-shaped connecting section 142 to the through-pipe section 141 . The second arc-shaped connecting section 144 connects the end of the transverse pipe section 143 and the passing pipe section 141 . In the solution of this embodiment, the air return pipe 140 includes a first arc-shaped connecting section 142 , a transverse pipe section 143 and a second arc-shaped connecting section 144 . Its structure is more reasonable and scientific, and it occupies less space, which is more in line with the internal structure of the cooling chamber 112 . Improve the rational utilization of space.
横向管段143的至少部分区段上套接所述隔热套管145。横向管段143位于蒸发器130的横向后部,制冷气流流经该区段时,极容易与气流进行热交换,导致热量损失,通过套设隔热套管145,可以减少热量损失,从而降 低结霜或结冰的风险。The heat insulating sleeve 145 is sleeved over at least a part of the transverse pipe section 143 . The transverse pipe section 143 is located at the transverse rear of the evaporator 130. When the cooling air flows through this section, it is very easy to exchange heat with the air flow, resulting in heat loss. Risk of frost or freezing.
本实施例的方案通过在回气管140上设置储液器160,从而对进入回气管140内的空气中携带的少量液体进行收集,避免了液体进入压缩机200,对压缩机200的工作产生不利影响。本实施例的方案中回气管140包括第一弧形连接段142、横向管段143和第二弧形连接段144,其结构更加合理科学,而且占用空间小,提高了空间的合理利用率。In the solution of this embodiment, the liquid accumulator 160 is arranged on the air return pipe 140, so as to collect a small amount of liquid carried in the air entering the air return pipe 140, so as to prevent the liquid from entering the compressor 200, which is detrimental to the operation of the compressor 200. influence. In the solution of this embodiment, the air return pipe 140 includes a first arc-shaped connecting section 142, a transverse pipe section 143 and a second arc-shaped connecting section 144. The structure is more reasonable and scientific, and the space occupied is small, which improves the reasonable utilization of space.
蒸发器130为翅片蒸发器,该翅片蒸发器130可以包括:一组翅片(图中未示出)、蒸发管(图中未示出)、支撑端板131。一组翅片沿箱体100的前后方向平行设置。蒸发管穿设于翅片之间。支撑端板131设置于翅片的两侧。蒸发管的出口设置于一侧支撑端板131的后部,并弧形延伸至储液器160。本实施例的方案采用了翅片蒸发器130,不仅结构紧凑、占用面积小,而且其传热系数高,从而进一步提高了蒸发器130的换热效率,并保障了冰箱10的制冷存储功能。The evaporator 130 is a fin evaporator, and the fin evaporator 130 may include: a set of fins (not shown in the figure), an evaporation tube (not shown in the figure), and a supporting end plate 131 . A group of fins are arranged in parallel along the front-rear direction of the box body 100 . The evaporating tube is inserted between the fins. The support end plates 131 are disposed on both sides of the fins. The outlet of the evaporating tube is disposed at the rear of the one side support end plate 131 and extends to the liquid reservoir 160 in an arc shape. The solution of this embodiment adopts the finned evaporator 130 , which not only has a compact structure and a small occupied area, but also has a high heat transfer coefficient, thereby further improving the heat exchange efficiency of the evaporator 130 and ensuring the refrigeration and storage function of the refrigerator 10 .
蒸发器130可以相对于水平方向沿冰箱10的进深方向倾斜放置,倾斜方向为从前至后向上。蒸发器130倾斜布置于冷却室112内,一方面减小了箱体100进深尺寸(前后方向的距离),尽可能地将进深尺寸用于储物空间111;另一方面,由于储物空间111底部提高,也避免了用户需要大幅度弯腰或蹲下才能进行取放物品操作造成的使用不便。The evaporator 130 may be inclined along the depth direction of the refrigerator 10 with respect to the horizontal direction, and the inclination direction is from front to back and upward. The evaporator 130 is arranged obliquely in the cooling chamber 112, on the one hand, the depth dimension (distance in the front-rear direction) of the box body 100 is reduced, and the depth dimension is used for the storage space 111 as much as possible; on the other hand, since the storage space 111 The raised bottom also avoids the inconvenience caused by users needing to bend or squat down to pick up and place items.
冰箱10还可以包括风道盖板170和送风风机180。风道盖板170设置于底部内胆110的后壁的前方,并与底部内胆110的后壁限定出送风风道,并且风道盖板170开设有至少一个送风口,送风口用于连通送风风道以及储物空间111。送风风机180设置于蒸发器130的后侧,并用于促使形成从冷却室112前方的空气经由蒸发器130排向送风风道的制冷气流。The refrigerator 10 may further include an air duct cover 170 and an air blower 180 . The air duct cover 170 is arranged in front of the rear wall of the bottom inner pot 110, and defines an air supply air duct with the rear wall of the bottom inner pot 110, and the air duct cover 170 is provided with at least one air supply port, and the air supply port is used for The air supply duct and the storage space 111 are communicated. The air blower 180 is disposed on the rear side of the evaporator 130 , and is used to promote the formation of a cooling airflow that is discharged from the air in front of the cooling chamber 112 to the air supply duct through the evaporator 130 .
本实施例的方案通过在底部内胆110的后部设置风道盖板170和送风风机180,从而提高制冷空气从冷却室112流入储物空间111的流通速率,进一步保障冰箱10的制冷存储效果。本实施例的方案中送风口可以设置为一个或多个,如图所示的一个实施例中,风道盖板170上设置有个送风口,使得送风更加均匀、流畅。In the solution of this embodiment, an air duct cover 170 and an air blower 180 are arranged at the rear of the bottom inner pot 110 , thereby increasing the circulation rate of the cooling air flowing from the cooling chamber 112 into the storage space 111 , and further ensuring the cooling storage of the refrigerator 10 . Effect. In the solution of this embodiment, one or more air supply openings may be provided. In an embodiment as shown in the figure, an air supply opening is provided on the air duct cover plate 170 to make the air supply more uniform and smooth.
支撑端板131的前端还分别向两侧延伸形成遮挡板132,用于遮挡蒸发器130与冷却室112侧壁间的缝隙,以避免空气从蒸发器130两侧外部穿过。The front ends of the support end plates 131 also extend to two sides to form shielding plates 132 for shielding the gap between the evaporator 130 and the side wall of the cooling chamber 112 to prevent air from passing through the outside of the evaporator 130 on both sides.
本实施例的方案通过在蒸发器130的支撑端板131的前端设置遮挡板 132,使得冷却室112内的空气只能通过蒸发器130流入后方,避免了空气从蒸发器130的两侧流过,从而影响冰箱10的制冷效果。进一步地,本实施例的遮挡板132是支撑端板131延伸形成,不仅结构简单,而且更加稳固。In the solution of this embodiment, a shielding plate 132 is provided at the front end of the supporting end plate 131 of the evaporator 130 , so that the air in the cooling chamber 112 can only flow into the rear through the evaporator 130 , preventing the air from flowing from both sides of the evaporator 130 , thereby affecting the cooling effect of the refrigerator 10 . Further, the shielding plate 132 in this embodiment is formed by extending the support end plate 131 , which is not only simple in structure, but also more stable.
冰箱10的送风风机180可以为离心风机183,整体倾斜地设置于蒸发器130的后侧,其进风口181朝向蒸发器130,其排风口182与送风风道下端相接,并且离心风机183的进风口181的中心至底部内胆110两侧侧板的距离不同,进风口181的中心至底部内胆110靠近于回气管140一侧侧壁的距离大于至底部内胆110远离于回气管140一侧侧壁的距离。上述离心风机183在底部内胆110中的横向设置位置,可为储液器160和回气管140的设置提供空间,并且还可以避免气流直吹回气管140造成热量流失。The air supply fan 180 of the refrigerator 10 may be a centrifugal fan 183, which is integrally disposed on the rear side of the evaporator 130 obliquely. The distance from the center of the air inlet 181 of the fan 183 to the side panels on both sides of the bottom inner pot 110 is different, and the distance from the center of the air inlet 181 to the bottom inner pot 110 close to the side wall of the air return pipe 140 is greater than the distance from the bottom inner pot 110 away from the side wall. The distance from one side wall of the air return pipe 140 . The horizontal position of the centrifugal fan 183 in the bottom liner 110 can provide space for the arrangement of the liquid reservoir 160 and the air return pipe 140 , and can also avoid heat loss caused by the air blowing straight back to the air pipe 140 .
本实施例的方案中采用的送风风机180为离心风机183,其运行平稳,维护方便,且坚固耐用。进一步地,本实施例中的离心风机183设置为进风口181的中心至底部内胆110靠近于回气管140一侧侧壁的距离大于至底部内胆110远离于回气管140一侧侧壁的距离,也就是说,送风风机180的进风口181的中心偏向于底部内胆110的左壁,即送风风机180设置于底部内胆110偏向于左侧的位置,使得制冷空气从风机的出风口向送风风道内的流通更加顺畅,从而进一步提高风机地送风效率。上述离心风机183的安装位置的设置是根据空间要求以及制冷性能要求做出的结构优化,并且得到试制产品的效果验证。The air supply fan 180 used in the solution of this embodiment is a centrifugal fan 183, which runs smoothly, is easy to maintain, and is durable. Further, the centrifugal fan 183 in this embodiment is set so that the distance from the center of the air inlet 181 to the side wall of the bottom inner bladder 110 close to the side wall of the air return pipe 140 is greater than the distance to the side wall of the bottom inner bladder 110 away from the side wall of the air return pipe 140 . The distance, that is to say, the center of the air inlet 181 of the air blower 180 is inclined to the left wall of the bottom inner tank 110, that is, the air supply fan 180 is arranged at the position where the bottom inner tank 110 is biased to the left, so that the cooling air flows from the fan to the left. The airflow from the air outlet to the air supply air duct is smoother, thereby further improving the air supply efficiency of the fan. The setting of the installation position of the above centrifugal fan 183 is a structural optimization made according to the space requirements and the cooling performance requirements, and the effect verification of the trial product is obtained.
上述实施例的冰箱10在回气管140位于冷却室112内的至少部分区段设置有隔热套管145,以减少制冷剂在通过回气管140时损失的热量,保证回气管140的温度,从而减少结霜或结冰现象的产生。In the refrigerator 10 of the above embodiment, at least a part of the air return pipe 140 is located in the cooling chamber 112 is provided with an insulating sleeve 145 to reduce the heat loss of the refrigerant when passing through the air return pipe 140 and ensure the temperature of the air return pipe 140, thereby Reduce the occurrence of frost or icing.
进一步地,上述实施例中对隔热套管145进行了尺寸限制,可以使得在使用最少的制作材料的情况下起到最好的隔热保温效果,降低生产成本,也更加的节能环保。Further, the size of the thermal insulation sleeve 145 is limited in the above embodiment, which can achieve the best thermal insulation effect under the condition of using the least manufacturing materials, reduce the production cost, and be more energy-saving and environmentally friendly.
至此,本领域技术人员应认识到,虽然本文已详尽示出和描述了本发明的多个示例性实施例,但是,在不脱离本发明精神和范围的情况下,仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此,本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。By now, those skilled in the art will recognize that, although various exemplary embodiments of the present invention have been illustrated and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

  1. 一种减小回气管热量损失的冰箱,包括:A refrigerator for reducing heat loss from a return duct, comprising:
    箱体,其内部具有冷却室;A box with a cooling chamber inside;
    制冷系统,其包括设置于所述冷却室内的蒸发器、压缩机以及连接于所述压缩机和所述蒸发器之间的回气管,所述压缩机位于所述冷却室的外部,所述蒸发器位于所述冷却室内部;a refrigeration system, which includes an evaporator, a compressor, and a return pipe connected between the compressor and the evaporator, which are arranged in the cooling chamber, the compressor is located outside the cooling chamber, and the evaporator the cooler is located inside the cooling chamber;
    隔热套管,套设于所述回气管位于所述冷却室内的至少部分区段上,以减少制冷剂在通过所述回气管时损失的热量。An insulating sleeve is sleeved on at least a part of the section of the air return pipe located in the cooling chamber, so as to reduce the heat loss of the refrigerant when passing through the air return pipe.
  2. 根据权利要求1所述的减小回气管热量损失的冰箱,其中The refrigerator of claim 1, wherein
    所述隔热套管套设于所述回气管位于所述冷却室内且与所述蒸发器距离小于或等于20mm的区段上。The heat insulation sleeve is sleeved on the section of the air return pipe located in the cooling chamber and the distance from the evaporator is less than or equal to 20 mm.
  3. 根据权利要求1所述的减小回气管热量损失的冰箱,其中The refrigerator of claim 1, wherein
    所述隔热套管的长度大于或等于30mm。The length of the heat insulating sleeve is greater than or equal to 30mm.
  4. 根据权利要求1所述的减小回气管热量损失的冰箱,其中The refrigerator of claim 1, wherein
    所述箱体,具有底部内胆,并且所述冷却室设置于所述底部内胆的底部;The box body has a bottom liner, and the cooling chamber is arranged at the bottom of the bottom liner;
    所述蒸发器,布置于所述冷却室的前部,所述回气管通过所述底部内胆上开设的管孔穿出,以供连接所述压缩机。The evaporator is arranged in the front part of the cooling chamber, and the air return pipe is passed through the pipe hole opened on the bottom inner liner, so as to be connected to the compressor.
  5. 根据权利要求4所述的减小回气管热量损失的冰箱,其中The refrigerator of claim 4, wherein
    所述管孔设置于所述底部内胆的后壁底部靠近于侧壁的位置,并且The pipe hole is arranged at a position where the bottom of the rear wall of the bottom inner bladder is close to the side wall, and
    所述回气管包括:The air return pipe includes:
    穿管段,所述穿管段沿所述箱体的纵深前后方向穿出所述管孔;a pipe-penetrating section, the pipe-penetrating section passing through the pipe hole along the longitudinal direction of the box body;
    连接段,连接于所述蒸发器以及所述穿管段之间,所述隔热套管套设于所述连接段的至少部分区段上。The connecting section is connected between the evaporator and the through-pipe section, and the thermal insulation sleeve is sleeved on at least part of the connecting section.
  6. 根据权利要求5所述的减小回气管热量损失的冰箱,还包括:The refrigerator for reducing the heat loss of the return air pipe according to claim 5, further comprising:
    储液器,连接于所述蒸发器与所述回气管之间,其布置于所述蒸发器的后部靠近所述穿管段的一侧,并且所述连接段还包括:The liquid accumulator is connected between the evaporator and the air return pipe, and is arranged at the rear of the evaporator near the side of the through-pipe section, and the connection section further includes:
    第一弧形连接段,与所述储液器的排气口相连,弧形延伸至所述储液器的后部;the first arc-shaped connecting section is connected with the exhaust port of the liquid storage tank, and the arc-shaped extension extends to the rear of the liquid storage tank;
    横向管段,从所述第一弧形连接段的末端横向向所述穿管段延伸,所述横向管段的至少部分区段上套接所述隔热套管;a transverse pipe section extending laterally from the end of the first arc-shaped connecting section to the pipe-penetrating section, and at least part of the transverse pipe section is sleeved with the thermal insulation sleeve;
    第二弧形连接段,连接所述横向管段的末端与所述穿管段。The second arc-shaped connecting section connects the end of the transverse pipe section and the passing pipe section.
  7. 根据权利要求6所述的减小回气管热量损失的冰箱,其中所述蒸发器为翅片蒸发器,其包括:The refrigerator with reduced heat loss from the return air pipe according to claim 6, wherein the evaporator is a finned evaporator, comprising:
    一组翅片,沿所述箱体的前后方向平行设置;A group of fins are arranged in parallel along the front and rear directions of the box body;
    蒸发管,穿设于所述翅片之间;an evaporation tube, which is inserted between the fins;
    支撑端板,设置于所述翅片的两侧;supporting end plates, arranged on both sides of the fins;
    所述蒸发管的出口设置于一侧所述支撑端板的后部,并弧形延伸至所述储液器。The outlet of the evaporation tube is arranged at the rear of the support end plate on one side, and extends to the liquid reservoir in an arc shape.
  8. 根据权利要求7所述的减小回气管热量损失的冰箱,其中The refrigerator of claim 7, wherein
    所述蒸发器相对于水平方向沿所述冰箱的进深方向倾斜放置,倾斜方向为从前至后向上。The evaporator is placed obliquely along the depth direction of the refrigerator with respect to the horizontal direction, and the inclination direction is from front to back and upward.
  9. 根据权利要求7所述的减小回气管热量损失的冰箱,其中The refrigerator of claim 7, wherein
    所述底部内胆在所述冷却室的上部还形成有储物空间;并且所述冰箱还包括:The bottom inner liner also forms a storage space on the upper part of the cooling chamber; and the refrigerator further includes:
    风道盖板,设置于所述底部内胆的后壁的前方,并与所述底部内胆的后壁限定出送风风道,并且所述风道盖板开设有至少一个送风口,所述送风口用于连通所述送风风道以及所述储物空间;The air duct cover is arranged in front of the rear wall of the bottom inner liner, and defines an air supply air duct with the rear wall of the bottom inner liner, and the air duct cover is provided with at least one air supply port, so The air supply port is used for connecting the air supply air duct and the storage space;
    送风风机,设置于所述蒸发器的后侧,并用于促使形成从所述冷却室前方的空气经由所述蒸发器排向所述送风风道的制冷气流。The air blower is arranged on the rear side of the evaporator, and is used to promote the formation of a cooling airflow that is discharged from the air in front of the cooling chamber to the air supply duct via the evaporator.
  10. 根据权利要求9所述的减小回气管热量损失的冰箱,还包括:The refrigerator for reducing the heat loss of the return air pipe according to claim 9, further comprising:
    所述送风风机为离心风机,整体倾斜地设置于所述蒸发器的后侧,其进风口朝向所述蒸发器,其排风口与所述送风风道下端相接,并且The air supply fan is a centrifugal fan, and is disposed obliquely on the rear side of the evaporator as a whole, its air inlet is facing the evaporator, and its air outlet is connected to the lower end of the air supply air duct, and
    所述离心风机的进风口的中心至所述底部内胆两侧侧板的距离不同,所述进风口的中心至所述底部内胆靠近于所述管孔一侧侧壁的距离大于至所 述底部内胆远离于所述管孔一侧侧壁的距离。The distance from the center of the air inlet of the centrifugal fan to the side plates on both sides of the bottom inner tank is different, and the distance from the center of the air inlet to the side wall of the bottom inner tank close to the pipe hole is greater than the distance to the side wall of the bottom inner tank. The distance between the bottom inner liner and the side wall of one side of the tube hole.
PCT/CN2021/123574 2020-08-18 2021-10-13 Refrigerator capable of reducing heat loss of air return pipe WO2022037714A1 (en)

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WO2023185745A1 (en) * 2022-03-31 2023-10-05 青岛海尔电冰箱有限公司 Liner assembly for refrigerator and refrigerator having same

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