WO2023169561A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2023169561A1
WO2023169561A1 PCT/CN2023/080792 CN2023080792W WO2023169561A1 WO 2023169561 A1 WO2023169561 A1 WO 2023169561A1 CN 2023080792 W CN2023080792 W CN 2023080792W WO 2023169561 A1 WO2023169561 A1 WO 2023169561A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
evaporator
air duct
refrigerator according
fins
Prior art date
Application number
PCT/CN2023/080792
Other languages
English (en)
French (fr)
Inventor
杨玉涛
耿伟
赵彩云
Original Assignee
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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Publication date
Application filed by 青岛海尔电冰箱有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔电冰箱有限公司
Publication of WO2023169561A1 publication Critical patent/WO2023169561A1/zh

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Classifications

    • 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
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • 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
    • F25D17/062Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household 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
    • F25D17/067Evaporator fan units
    • 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

Definitions

  • the present invention relates to a refrigeration and freezing device, in particular to a refrigerator.
  • the commonly used evaporators in refrigerators mainly include tube plate evaporators and fin evaporators.
  • the fin evaporator itself is thicker, and the evaporator will occupy a relatively large space, affecting the effective storage volume of the refrigerator. Therefore, fin-type evaporators should not be used in refrigerators with high storage volume ratio requirements.
  • tube plate evaporator itself is relatively thin, its thinness results in a smaller heat exchange area, making the refrigerator's cooling efficiency lower. Therefore, simply using a traditional tube plate evaporator is not the optimal solution.
  • An object of the present invention is to provide a refrigerator that can achieve a thinner and lighter evaporator while also taking into account cooling efficiency.
  • the present invention provides a refrigerator, which includes an outer shell, an inner tank, an air duct cover and an evaporator.
  • the inner tank is arranged inside the outer shell to define a storage compartment; the air duct cover is provided
  • An air duct is defined inside the inner bag with the inner wall of the inner bag for supplying cooling air to the storage compartment.
  • the evaporator is installed on the inner tank and has at least one enhanced heat exchange part. Each of the enhanced heat exchange parts is located inside the air duct so as to contact and exchange heat with the air flow in the air duct.
  • the evaporator is close to the outer wall of the inner pot; at least one relief hole is opened on the inner pot to allow each of the enhanced heat exchange parts to extend through the one relief hole. into the air duct.
  • the evaporator is a tube plate evaporator, which has at least one heat exchange plate and a heat exchange tube attached to one side of the heat exchange plate; the reinforced heat exchange part is attached to the heat exchange plate. The other side is against the outer wall of the inner bag.
  • each of the enhanced heat exchange parts is clamped in one of the relief holes.
  • each of the enhanced heat exchange parts includes:
  • a plurality of fins protrude from the other side surface of the plate body, and the first edge of each fin is connected to the edge of one of the ventilation holes.
  • each of the fins is formed by first cutting and then folding outward a solid part of the area where the ventilation hole is located.
  • a plurality of the fins are arranged in multiple rows, and the first sides of the fins in each row are parallel to each other; and the first sides of the fins in every two adjacent rows are sandwiched between each other. Obtuse angle.
  • each fin is formed between each fin and the plate body.
  • each of the fins is a rectangle with a length direction parallel to the first side.
  • the angle between the plane of each fin and the plate body is between 80° and 90°.
  • the beneficial effects of the present invention are: in the refrigerator of the present invention, the evaporator is arranged on the inner tank, and an enhanced heat exchange part is provided on it, so that the enhanced heat exchange part is located inside the air duct. In this way, the airflow in the air duct contacts the enhanced heat exchange part over a large area during the flow process, completing efficient convection heat exchange, making the heat exchange efficiency of the evaporator very high. Moreover, although a reinforced heat exchange part is added, the evaporator is placed on the inner tank, so there is no need to thicken it too much or even thicken the air duct, which is also conducive to achieving a lighter and thinner evaporator to make the storage space larger. Based on this, the refrigerator of the present invention takes into account both the thinness and efficiency of the evaporator.
  • the evaporator is a tube plate evaporator.
  • the contact area between the tube plate evaporator and the air is larger, and the heat exchange area is increased in an extremely narrow space. , achieving efficient convection heat transfer, while also ensuring that the evaporator is light and thin, and the structure is very clever.
  • the enhanced heat exchange part occupies the internal space of the air duct and does not occupy additional space. The design idea is very reasonable.
  • the shape of the enhanced heat exchange part is repeatedly limited, for example, it includes fins and ventilation holes, the fins are arranged in multiple rows, each row holds an obtuse angle, etc., on the one hand, it increases The contact area with the airflow is increased, and on the other hand, the flow path of the airflow is more rugged, which makes the contact time with the enhanced heat exchange part longer, making the convection heat transfer efficiency higher.
  • Figure 1 is a schematic structural diagram of the inner container of a refrigerator according to one embodiment of the present invention.
  • Figure 2 is a partial structural schematic diagram of the air duct of the refrigerator according to one embodiment of the present invention.
  • Figure 3 is a schematic exploded view of the structure shown in Figure 1;
  • Figure 4 is a schematic structural diagram of an evaporator in a refrigerator according to an embodiment of the present invention.
  • Figure 5 is a schematic diagram of the evaporator shown in Figure 4 from another perspective
  • FIG. 6 is an enlarged view of position A in FIG. 4 .
  • An embodiment of the present invention provides a refrigerator.
  • the refrigerator in the embodiment of the present invention is an air-cooled refrigerator, and the refrigerator can use a vapor compression refrigeration cycle system for refrigeration to provide cold energy to the storage compartment 13 .
  • the vapor compression refrigeration cycle system includes a compressor (not shown), a condenser (not shown), an evaporator 50, a throttling device (not shown) and other refrigeration accessories.
  • the evaporator 50 can be arranged in an independent space, and the air duct 11 is used to transmit the cold air produced by the evaporator 50 to each storage compartment 13 to cool the food, and the return air duct is used to cool the food in the storage compartment 13.
  • the gas whose temperature has increased after exchanging heat with the food is returned to the evaporator 50 for cooling again, thus forming an air path circulation.
  • Figure 1 is a schematic structural diagram of the inner container 10 of the refrigerator according to one embodiment of the present invention
  • Figure 2 is a partial structural schematic diagram of the air duct 11 of the refrigerator according to one embodiment of the present invention
  • Figure 3 is a schematic decomposition of the structure shown in Figure 1 Figure
  • Figure 4 is a schematic structural diagram of the evaporator 50 in the refrigerator according to one embodiment of the present invention.
  • the refrigerator may generally include an outer shell 30 , an inner pot 10 , an air duct cover 20 and an evaporator 50 .
  • the outer shell 30 and the inner pot 10 constitute the box body of the refrigerator, and the outer surface of the outer shell 30 constitutes the appearance of the box body.
  • the front side of the box is open, and a door can be set on the front side.
  • Figure 1 only shows the rear wall of the shell 30 and an inner bag 10.
  • the shell 30 also has a left side wall, a right side wall, a top wall and a bottom wall.
  • the refrigerator may also have multiple inner pots, none of which are shown in Figure 1 .
  • the inner bladder 10 is disposed inside the outer shell 30 to define a storage compartment 13 .
  • the storage room 13 may be a refrigerator room, a variable room, a freezing room, etc.
  • a foam layer (not shown) can be provided between the inner pot 10 and the outer shell 30 to improve the heat insulation performance of the refrigerator box and save the power consumption of the refrigerator.
  • the air duct cover 20 is disposed on the inner side of the inner liner 10 to define an air duct 11 with the inner wall of the inner liner 10 for supplying cooling air to the storage compartment 13 .
  • the air duct cover 20 is provided with a plurality of air outlets 21, 22 for transporting the cooling air in the air duct 11 to the interior of the storage compartment 13, completing the storage compartment. Refrigeration of ingredients inside room 13.
  • the evaporator 50 is installed on the inner tank 10 . Furthermore, the evaporator 50 has at least one enhanced heat exchange part 53 , and each enhanced heat exchange part 53 is located inside the air duct 11 so as to be in contact with the flowing airflow in the air duct 11 to achieve convection heat exchange.
  • a fan can be installed in the air duct 11 to realize the flow of air.
  • the number of enhanced heat exchange parts 53 may be multiple, for example, two as shown in FIG. 3 . Alternatively, the number of reinforced heat exchange parts 53 may be one.
  • the purpose of strengthening the heat exchange part 53 is to increase the contact area between the strengthened heat exchange part 53 and the surrounding air and improve the efficiency of convection heat exchange.
  • the evaporator 50 is disposed on the inner tank 10 and is provided with an enhanced heat exchange part 53 so that the enhanced heat exchange part 53 is located inside the air duct 11 .
  • the airflow in the air duct 11 comes into contact with the enhanced heat exchange part 53 over a large area, completing efficient convection heat exchange, so that the heat exchange efficiency of the evaporator 50 is very high.
  • the enhanced heat exchange part 53 is added in the embodiment of the present invention, the evaporator 50 is arranged on the inner tank 10, so there is no need to thicken it too much or even the air duct 11, which is also conducive to the thinning and lightness of the evaporator 50. . Based on this, the evaporator 50 of the refrigerator of the present invention takes into account both thinness and efficiency.
  • FIG. 5 is a schematic diagram of the evaporator 50 shown in FIG. 4 from another perspective.
  • the evaporator 50 is a tube plate evaporator, which has at least one heat exchange plate 51 and a heat exchange tube 52 attached to one side of the heat exchange plate 51 .
  • the thickness of the tube plate evaporator is thin, which can make the evaporator 50 thinner and lighter, making the storage space of the refrigerator larger and meeting the needs of users.
  • two heat exchange plates 51 can be provided.
  • the heat exchange plate 51 can be made of a metal material such as aluminum, and its function is to use the heat exchange plate 51 to increase the contact area between the evaporator 50 and the air.
  • the present invention uses a tube plate evaporator and cooperates with the enhanced heat exchange structure of the present invention to make the contact area between the tube plate evaporator and the air larger, increase the heat exchange area in an extremely narrow space, and achieve efficient convection heat exchange. At the same time, it also ensures that the evaporator 50 is light and thin, and the structure is very clever. Moreover, the enhanced heat exchange part 53 occupies the internal space of the air duct 11 and does not occupy additional space, making the storage space of the refrigerator relatively larger, and the design idea is very reasonable.
  • the evaporator 50 is abutted against the outer wall of the inner bladder 10 .
  • At least one relief hole 15 is opened in the inner pot 10 to allow each enhanced heat exchange part 53 to extend into the air duct 11 through one of the relief holes 15 . That is to say, the number of relief holes 15 is the same as the number of reinforced heat exchange parts 53, and their positions are one-to-one opposite. In this way, it evaporates
  • the device 50 does not occupy the internal space of the air duct 11, so that the air duct 11 only needs to accommodate the reinforced heat exchange part 53, and there is no need to set it too thick.
  • the evaporator 50 is a tube plate evaporator, which has at least one heat exchange plate 51 and a heat exchange tube 52 attached to one side of the heat exchange plate 51 .
  • the enhanced heat exchange part 53 is attached to the other side of the heat exchange plate 51 , and this side is attached to the outer wall of the inner pot 10 for better heat exchange with the inner pot 10 .
  • the reinforced heat exchange part 53 and the inner pot 10 may be connected by screws, buckles and/or adhesives.
  • each enhanced heat exchange part 53 can be fixed in a relief hole 15 . In this way, the heat exchange part 53 and the inner tank 10 are more closely connected, which becomes a fixing method between the evaporator 50 and the inner tank 10.
  • the structural design is very ingenious.
  • FIG. 6 is an enlarged view of position A in FIG. 4 .
  • each enhanced heat exchange part 53 includes a plate body 531 and a plurality of fins 532 .
  • a plurality of ventilation holes 533 are provided on the plate body 531, and one side surface thereof is close to the evaporator 50, so that it is in close contact with the evaporator 50, which is more conducive to heat exchange.
  • the plate body 531 and the heat exchange plate 51 of the evaporator 50 can be bonded to each other, so that the heat exchange effect between the two is better and the cooling speed of the enhanced heat exchange part 53 is faster.
  • a plurality of fins 532 protrude from the other side surface of the plate body 531, wherein the first side bc of each fin 532 (referring to the edge of the fin 532 used to connect with the plate body 531, refer to Figure 6) Connected to the edge of a vent 533.
  • the fins 532 are used to increase the contact area between the enhanced heat exchange part 53 and the air, thereby improving the heat exchange efficiency.
  • by designing the ventilation holes 533 a part of the surface of the evaporator 50 can be exposed and directly contacted with the air, so that the heat exchange efficiency of the evaporator 50 is higher.
  • the reinforced heat exchange part 53 can be made of a material with better heat exchange performance, such as a metal material, specifically, an aluminum alloy.
  • each fin 532 is formed by cutting and then folding outward the solid part of the area where the ventilation hole 533 is located. That is to say, the base material of the reinforced heat exchange part 53 is a whole plate. First, a " ⁇ "-shaped slit is cut, and then the solid part inside the " ⁇ "-shaped shape is folded out to form the aforementioned Fin 532.
  • the reinforced heat exchange part 53 can also be formed in other ways, such as integral casting.
  • the fins 532 are made separately and then welded to the plate body 531 .
  • the fins 532 can also be made separately and then connected to the plate body 531 through screws.
  • the plurality of fins 532 can be arranged in multiple rows, for example, as shown in FIG. 4 , they can be arranged in three rows.
  • the first sides bc of the fins 532 in each row are parallel to each other.
  • the mutual parallel does not require absolute parallelism in the mathematical sense. There may be a smaller included angle due to design or process factors.
  • the first sides of the fins 532 in each two adjacent rows are formed at an obtuse angle, that is, a pattern of distribution in a meandering direction is formed.
  • the fins 532 with this kind of curved distribution have a larger heat exchange area than the fins with a straight distribution, and the wind has more circulation times between the fins 532 , can achieve higher heat exchange efficiency.
  • a plurality of reinforcing ribs 534 are formed between each fin 532 and the plate body 531 to make the connection between the fins 532 and the plate body 531 tighter and more stable.
  • Each fin 532 may be parallel along its length A rectangle with first side bc.
  • the angle between the plane of each fin 532 and the plate body 531 is between 80° and 90°, including the endpoint values.

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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

一种冰箱,其包括外壳;内胆,设置在所述外壳内侧,以限定出储物间室;风道盖板,其设置在所述内胆内侧,以与所述内胆的内壁限定出风道,以用于为所述储物间室供应冷却空气;和蒸发器,其安装于所述内胆上,且其具有至少一个加强换热部,每个所述加强换热部位于所述风道内部,以便与所述风道内的气流进行接触换热。本发明的冰箱既能实现蒸发器的轻薄化,又能兼顾制冷效率。

Description

冰箱 技术领域
本发明涉及冷藏冷冻装置,特别涉及一种冰箱。
背景技术
当前,冰箱常用的蒸发器主要有管板式蒸发器和翅片式蒸发器。翅片式蒸发器的本身厚度较厚,蒸发器会占据相对较大的空间,导致冰箱的有效储物容积受到影响。因此,对于储物容积率有较高要求的冰箱,不宜采用翅片式蒸发器。
而管板式蒸发器虽然本身较为轻薄,但由于其轻薄化导致换热面积较小,使得冰箱的制冷效率要更低。因此,单纯地采用传统的管板式蒸发器也并非最优方案。
因此,如何既能实现冰箱轻薄化,又能兼顾制冷效率,成为冰箱领域亟待解决的技术难题。
发明内容
本发明的目的在于提供一种既能实现蒸发器的轻薄化,又能兼顾制冷效率的冰箱。
为实现上述目的,本发明提供了一种冰箱,其包括外壳、内胆、风道盖板及蒸发器,内胆设置在所述外壳内侧,以限定出储物间室;风道盖板设置在所述内胆内侧,以与所述内胆的内壁限定出风道,以用于为所述储物间室供应冷却空气。蒸发器安装于所述内胆上,且其具有至少一个加强换热部,每个所述加强换热部位于所述风道内部,以便与所述风道内的气流进行接触换热。
进一步地,所述蒸发器贴靠于所述内胆的外壁;所述内胆上开设有至少一个让位孔,以允许每个所述加强换热部经所述一个所述让位孔伸入所述风道内。
进一步地,所述蒸发器为管板式蒸发器,其具有至少一个换热板和贴附于所述换热板一侧的换热管;所述加强换热部贴附于所述换热板的另一侧,且该侧面贴靠于所述内胆的外壁。
进一步地,每个所述加强换热部卡固在一个所述让位孔内。
进一步地,每个所述加强换热部包括:
板体,其上开设有多个通风孔,其一侧表面贴靠于所述蒸发器;和
多个翅片,凸出于所述板体的另一侧表面,每个所述翅片的第一边连接于一个所述通风孔的边缘。
进一步地,每个所述翅片为一个所述通风孔所处区域的实体部分先经切割然后向外翻折而成。
进一步地,多个所述翅片排列为多排,每排的各所述翅片的所述第一边相互平行;每相邻两排的各所述翅片的所述第一边夹持钝角。
进一步地,每个所述翅片与所述板体之间形成有多个加强筋。
进一步地,每个所述翅片为长度方向平行于所述第一边的长方形。
进一步地,每个所述翅片所在平面与所述板体的夹角在80°至90°之间。
本发明的有益效果是:本发明的冰箱中,蒸发器设置在内胆上,且其上设置有加强换热部,使加强换热部处于风道内部。如此,风道内的气流在流动过程中,与加强换热部进行大面积地接触,完成高效对流换热,使得蒸发器的换热效率非常高。并且,虽然增设了加强换热部,但是蒸发器设置在内胆上,因此也无需过多加厚甚至不用加厚风道,也利于实现蒸发器的轻薄化,以使储物空间更大。基于此,本发明的冰箱兼顾了蒸发器的轻薄化和高效化。
进一步地,本发明的冰箱使蒸发器为管板式蒸发器,配合本发明的加强换热部结构,使得管板式蒸发器与空气的接触面积更大,在极其狭窄的空间内增加了换热面积,实现了高效对流换热,同时也确保了蒸发器的轻薄化,结构非常巧妙。而且加强换热部占据的是风道内部空间,也并未额外占据空间,设计思路非常合理。
进一步地,本发明的冰箱中,对加强换热部的形状进行了多重限定,例如使其包括翅片和通风孔,使翅片为多排,各排夹持钝角等等,一方面增大了与气流的接触面积,另一方面也使气流的流动路径更加崎岖,使得与加强换热部各处的接触时间更长,使得对流换热效率更高。
附图说明
图1是根据本发明一个实施例的冰箱的内胆结构示意图;
图2是根据本发明一个实施例的冰箱的风道局部结构示意图;
图3是图1所示结构的示意性分解图;
图4是本发明一个实施例的冰箱中的蒸发器的结构示意图;
图5是图4所示蒸发器的另一视角示意图;
图6是图4的A处放大图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚,下面结合附图和具体实施例对本发明进行详细描述。
本发明实施例提供了一种冰箱。本发明实施例的冰箱为风冷式冰箱,冰箱可采用蒸汽压缩制冷循环系统进行制冷,以向储物间室13内提供冷量。蒸气压缩制冷循环系统包括压缩机(未图示)、冷凝器(未图示)、蒸发器50、节流装置(未图示)以及其他制冷配件。蒸发器50可设置于一独立的空间内,利用风道11将蒸发器50制取的冷气传输到各个储物间室13内进行冷却食物,并利用回风风道将储物间室13内的与食物换热后的温度升高的气体送回蒸发器50处进行再次冷却,如此形成风路循环。
图1是根据本发明一个实施例的冰箱的内胆10的结构示意图;图2是根据本发明一个实施例的冰箱的风道11局部结构示意图;图3是图1所示结构的示意性分解图;图4是本发明一个实施例的冰箱中的蒸发器50的结构示意图。
如图1至图4所示,本发明实施例的冰箱一般性地可包括外壳30、内胆10、风道盖板20和蒸发器50。
外壳30和内胆10构成冰箱的箱体部分,外壳30的外表面构成箱体的外观。箱体的前侧敞开,前侧可设置门体,图1中仅仅示意了外壳30的后壁以及一个内胆10,外壳30还具有左侧壁、右侧壁、顶壁和底壁,此外冰箱也可具有多个内胆,在图1中均未示出。
内胆10设置在外壳30的内侧,以限定出储物间室13。根据制冷目标温度的不同,储物间室13具体可为冷藏室、变温室、冷冻室等等。内胆10与外壳30之间可设置有发泡层(未图示),以便提升冰箱箱体的隔热保温性能,以节约冰箱的耗电量。
风道盖板20设置在内胆10的内侧,以与内胆10的内壁限定出风道11,以用于为储物间室13供应冷却空气。如图1和图3所示,风道盖板20上开设有多个出风口21、22,以用于将风道11内的冷却空气输送至储物间室13内部,完成对储物间室13内部食材的制冷。
蒸发器50安装于内胆10之上。并且,蒸发器50具有至少一个加强换热部53,每个加强换热部53位于风道11的内部,以便与风道11内的流动气流进行接触,实现对流换热。风道11内可设置有风机,以实现气流的流动。加强换热部53的数量可为多个,例如图3所示设置为两个。或者,加强换热部53的数量也可为一个。加强换热部53的目的是为了加大加强换热部53与周围空气的接触面积,提升对流换热的效率。
本发明实施例中,蒸发器50设置在内胆10上,且其上设置有加强换热部53,使加强换热部53处于风道11内部。如此,风道11内的气流在流动过程中,与加强换热部53进行大面积地接触,完成高效地对流换热,使得蒸发器50的换热效率非常高。并且,虽然本发明实施例增设了加强换热部53,但是蒸发器50设置在内胆10上,因此也无需过多加厚甚至不用加厚风道11,也利于实现蒸发器50的轻薄化。基于此,本发明的冰箱的蒸发器50兼顾了轻薄化和高效化。
图5是图4所示蒸发器50的另一视角示意图。
在本发明的一些实施例中,如图1至图5所示,蒸发器50为管板式蒸发器,其具有至少一个换热板51和贴附于换热板51一侧的换热管52。管板式蒸发器的厚度较薄,能够实现蒸发器50的轻薄化,使冰箱的储物空间更大,满足用户的需求。例如图4所示,可设置两个换热板51。当然,也可仅设置一个换热板51,或者设置3个或者更多的换热板51。换热管52内流通有制冷剂,换热板51可由金属材料例如铝制成,其作用在于利用换热板51增大蒸发器50与空气的接触面积。
本发明利用管板式蒸发器,配合本发明的加强换热部结构,使得管板式蒸发器与空气的接触面积更大,在极其狭窄的空间内增加了换热面积,实现了高效对流换热,同时也确保了蒸发器50的轻薄化,结构非常巧妙。而且加强换热部53占据的是风道11的内部空间,也并未额外占据空间,使冰箱的储物空间相对更大,设计思路非常合理。
在本发明的一些实施例中,如图1至图3所示,蒸发器50贴靠于内胆10的外壁。内胆10上开设有至少一个让位孔15,以允许每个加强换热部53经一个让位孔15伸入风道11内。也即,让位孔15的数量与加强换热部53的数量相同,位置一一相对。如此,使得蒸发 器50不占据风道11内部空间,使得风道11仅需要容纳加强换热部53即可,无需设置地过厚。
如图4和图5所示,蒸发器50为管板式蒸发器,其具有至少一个换热板51和贴附于换热板51一侧的换热管52。加强换热部53贴附于换热板51的另一侧,且该侧面贴靠于内胆10的外壁,以便与内胆10更好地换热。加强换热部53与内胆10之间可采用螺钉、卡扣和/或粘贴的方式相连。
在本发明的一些实施例中,可使每个加强换热部53卡固在一个让位孔15内。如此,加强换热部53与内胆10之间更加紧密地连接,成为蒸发器50与内胆10之间的一种固定方式,结构设计非常巧妙。
图6是图4的A处放大图。
如图4至图6所示,每个加强换热部53包括板体531和多个翅片532。板体531上开设有多个通风孔533,其一侧表面贴靠于蒸发器50,以使其与蒸发器50紧密接触,更加利于换热。对于管板式蒸发器50而言,可使板体531与蒸发器50的换热板51相互贴合,以使两者的换热效果更好,使加强换热部53冷却的速度更快。多个翅片532凸出于板体531的另一侧表面,其中每个翅片532的第一边bc(指的是翅片532的用于与板体531连接的边缘,参考图6)连接于一个通风孔533的边缘。本实施例利用翅片532增大了加强换热部53与空气的接触面积,提升了换热效率。并且,本发明实施例通过设计通风孔533,能使蒸发器50的一部分表面也显露在外,直接与空气接触,使得蒸发器50的换热效率更高。
在一些实施例中,加强换热部53可采用换热性能较好的材料制成,例如金属材料,具体地,可为铝制合金。
在一些实施例中,请参考图6,每个翅片532为一个通风孔533所处区域的实体部分先经切割然后向外翻折而成。也就是说,加强换热部53的基材为一整块板体,先切割出一个“冂”字形的切缝,然后将“冂”字形内部的实体部分向外翻折出来,形成前述的翅片532。当然,以上方式仅仅是加强换热部53的一种成型方式,加强换热部53还可以其他方式成型,例如一体铸造成型。或者将翅片532单独制作,然后焊接在板体531上。或者,也可以将将翅片532单独制作,然后通过螺钉连接于板体531
在一些实施例中,如图4和图6所示,可使多个翅片532排列为多排,例如图4所示可设置为3排。每排的各翅片532的第一边bc相互平行,此处的相互平行并非要求数学意义的绝对平行,可以有因设计或工艺因素导致的较小的夹角。并且,使每相邻两排的各翅片532的第一边夹持钝角,也就是形成去曲向分布的格局。在相同翅片总体积不变的情况下,这种曲向分布的翅片532相较于直向分布的翅片拥有更大的换热面积,风在翅片532间拥有更多的循环次数,能实现更高的换热效率。
在一些实施例中,如图4和图6所示,每个翅片532与板体531之间形成有多个加强筋534,以使翅片532与板体531之间的连接更加紧密稳固。每个翅片532可为长度方向平行 于第一边bc的长方形。每个翅片532所在平面与板体531的夹角在80°至90°之间,包括端点值。通过上述设计,一方面是增大了加强换热部53与气流的接触面积,另一方面也使气流的流动路径更加崎岖,使得与加强换热部53各处的接触时间更长,使得对流换热效率更高。
以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的精神和范围。

Claims (10)

  1. 一种冰箱,其特征在于包括:
    外壳;
    内胆,设置在所述外壳内侧,以限定出储物间室;
    风道盖板,其设置在所述内胆内侧,以与所述内胆的内壁限定出风道,以用于为所述储物间室供应冷却空气;和
    蒸发器,其安装于所述内胆上,且其具有至少一个加强换热部,每个所述加强换热部位于所述风道内部,以便与所述风道内的气流进行接触换热。
  2. 根据权利要求1所述的冰箱,其特征在于,所述蒸发器贴靠于所述内胆的外壁;所述内胆上开设有至少一个让位孔,以允许每个所述加强换热部经所述一个所述让位孔伸入所述风道内。
  3. 根据权利要求2所述的冰箱,其特征在于,所述蒸发器为管板式蒸发器,其具有至少一个换热板和贴附于所述换热板一侧的换热管;所述加强换热部贴附于所述换热板的另一侧,且该侧面贴靠于所述内胆的外壁。
  4. 根据权利要求2所述的冰箱,其特征在于,每个所述加强换热部卡固在一个所述让位孔内。
  5. 根据权利要求1所述的冰箱,其特征在于,每个所述加强换热部包括:
    板体,其上开设有多个通风孔,其一侧表面贴靠于所述蒸发器;和
    多个翅片,凸出于所述板体的另一侧表面,每个所述翅片的第一边连接于一个所述通风孔的边缘。
  6. 根据权利要求5所述的冰箱,其特征在于,每个所述翅片为一个所述通风孔所处区域的实体部分先经切割然后向外翻折而成。
  7. 根据权利要求6所述的冰箱,其特征在于,多个所述翅片排列为多排,每排的各所述翅片的所述第一边相互平行;每相邻两排的各所述翅片的所述第一边夹持钝角。
  8. 根据权利要求6所述的冰箱,其特征在于,每个所述翅片与所述板体之间形成有多个加强筋。
  9. 根据权利要求5所述的冰箱,其特征在于,每个所述翅片为长度方向平行于所述第一边的长方形。
  10. 根据权利要求5所述的冰箱,其特征在于,每个所述翅片所在平面与所述板体的夹角在80°至90°之间。
PCT/CN2023/080792 2022-03-11 2023-03-10 冰箱 WO2023169561A1 (zh)

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