WO2018058582A1 - 一种冰箱制冷系统及冰箱 - Google Patents

一种冰箱制冷系统及冰箱 Download PDF

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Publication number
WO2018058582A1
WO2018058582A1 PCT/CN2016/101216 CN2016101216W WO2018058582A1 WO 2018058582 A1 WO2018058582 A1 WO 2018058582A1 CN 2016101216 W CN2016101216 W CN 2016101216W WO 2018058582 A1 WO2018058582 A1 WO 2018058582A1
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WIPO (PCT)
Prior art keywords
air
evaporator
duct
refrigerator
centrifugal fan
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PCT/CN2016/101216
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English (en)
French (fr)
Inventor
吴默
史慧新
张贤中
龚勤勤
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合肥华凌股份有限公司
合肥美的电冰箱有限公司
美的集团股份有限公司
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Application filed by 合肥华凌股份有限公司, 合肥美的电冰箱有限公司, 美的集团股份有限公司 filed Critical 合肥华凌股份有限公司
Priority to PCT/CN2016/101216 priority Critical patent/WO2018058582A1/zh
Publication of WO2018058582A1 publication Critical patent/WO2018058582A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation

Definitions

  • the invention relates to a refrigerator refrigeration technology, in particular to a refrigerator refrigeration system and a refrigerator.
  • the prior art air cooling system includes a duct 002 disposed at the rear of the inner tank of the refrigerator and a fin evaporator 001 abutting at the rear of the duct 002 or the rear of the cabinet of the refrigerator, the duct 002
  • the air return port and the air outlet which communicate with the refrigerating compartment are provided, and the evaporator 001 cools the airflow in the air duct 002 by the fins.
  • the air duct 002 is further provided with a fan 003.
  • the fan 003 When the fan 003 rotates, the wind pressure is provided, and the wind exchanges heat from the air return port through the pipe and fin of the fin evaporator 001 to the evaporator 001, and finally passes through the air outlet of the air duct 002.
  • Room room air supply The problem in the prior art is that the evaporator 001 and the air duct 002 and the fan 003 are placed separately, and the volume occupation is large; in addition, the wind speed is slow when the return air passes through the evaporator 001, resulting in low heat exchange efficiency; and the air duct 002 is generally required.
  • the air duct backplane 004 is provided, so that the manufacturing cost is high.
  • the object of the present invention is to provide a refrigerator refrigeration system and a refrigerator, which solve the problems of large space occupied by the refrigeration system and low heat exchange efficiency existing in the prior art.
  • the present invention provides a refrigerator refrigeration system including an air duct disposed in a refrigerating compartment, and a return air outlet and an air outlet opening on the air duct, wherein the air duct is provided with a centrifugal fan and An evaporator that is annular and surrounds the centrifugal fan such that the centrifugal fan exhausts air toward an inner annulus of the evaporator; an air inlet direction of the centrifugal fan corresponds to the return air opening.
  • an air duct is disposed at the air outlet.
  • the evaporator includes a heat pipe distributed in an S shape, and heat dissipating fins fixed on the heat pipe.
  • the evaporator has an annular shape, and the heat dissipation tubes are distributed in an S-shape along a radial direction of the evaporator, and all of the heat dissipation fins extend in a radial direction of the evaporator.
  • the air duct has a duct panel and a duct back board that are engaged with each other, and a duct inner cavity is formed between the air duct panel and the air duct back board, and the air return port and the air outlet are both disposed.
  • the centrifugal fan and the evaporator are both fixed on the duct backplane.
  • the duct backplane is a rear wall of the refrigerator liner.
  • the air return port is located in a middle portion of the air duct panel, the number of the air outlets is plural, and the air outlets are distributed around the air return port.
  • the invention also provides a refrigerator comprising the above-described refrigerator refrigeration system.
  • the air duct is located at a position of the refrigerator near a rear wall of the refrigerator liner.
  • the refrigerator refrigeration system of the present invention includes an air duct disposed in the refrigerating compartment, and a return air outlet and an air outlet opening on the air duct, wherein the air duct is provided with a centrifugal fan and An evaporator that is annular and surrounds the centrifugal fan such that the centrifugal fan exhausts air toward an inner annulus of the evaporator; an air inlet direction of the centrifugal fan corresponds to the return air opening.
  • FIG. 1 is a schematic structural view of a prior art air cooling system in a refrigerator
  • FIG. 2 is a schematic view showing an explosion of a refrigerator refrigeration system in an embodiment
  • Figure 3 is a front elevational view showing the assembled refrigerator refrigeration system in the embodiment
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
  • Figure 5 is a top plan view of the assembled refrigerator refrigeration system in the embodiment
  • Figure 6 is a schematic structural view of an evaporator in the embodiment
  • Figure 7 is a schematic structural view of a centrifugal fan in the embodiment.
  • Figure 8 is a schematic view showing the installation of the refrigerator refrigeration system in the refrigerator compartment in the embodiment.
  • connection and “connected” are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral, unless otherwise explicitly defined and defined.
  • Ground connection it can be a mechanical connection or an electrical connection; They can be directly connected or indirectly connected through an intermediate medium.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the refrigerator refrigeration system of the present embodiment includes an air duct 2 disposed in the refrigerating compartment, and a return air outlet 4 and an air outlet 5 formed on the air duct 2, and the air duct 2 is disposed in the air duct 2 There is a centrifugal fan 3 and an evaporator 1, the evaporator 1 is annular and surrounds the centrifugal fan 3 such that the centrifugal fan 3 is exhausted toward the inner annulus of the evaporator 1; the centrifugal fan 3 The direction of the incoming air corresponds to the return air outlet 4.
  • the ring includes both a ring and an elliptical ring, a rectangular ring, a hexagonal ring and the like, as long as the evaporator of the shape can surround the centrifugal fan and the centrifugal fan faces the inner annular surface of the evaporator The wind can be.
  • the air inlet direction of the centrifugal fan corresponds to the return air outlet
  • the return air inlet is arranged on the impeller shaft of the centrifugal fan or in the vicinity of the impeller shaft so as to enable the return air to enter the impeller of the centrifugal fan as a standard .
  • both the centrifugal fan 3 and the evaporator 1 are disposed in the duct 2, the space utilization ratio of the refrigerator compartment can be improved.
  • the centrifugal fan 3 is exhausted toward the inner annular surface of the evaporator 1, and the air inlet direction of the centrifugal fan 3 corresponds to the return air opening 4, the wind speed is faster when the wind passes through the evaporator 1, compared with the conventional technology.
  • the heat exchange efficiency of the evaporator 1 is high.
  • the centrifugal fan 3 when the centrifugal fan 3 is turned on, a negative pressure is generated in its own air intake direction. Since the air inlet direction of the centrifugal fan 3 corresponds to the return air opening 4, a negative pressure is generated at the air return port 4, so that the return air enters the centrifugal fan 3 through the return air opening 4. Wherein, the return air passes through the impeller of the centrifugal fan 3, then undergoes phase change (direction) and flows in the radial direction of the impeller. Since the evaporator 1 is annular and surrounds the centrifugal fan 3, the centrifugal fan 3 can be caused to exhaust toward the inner annulus of the evaporator 1.
  • the wind passes through the evaporator 1 enclosed by the outside of the centrifugal fan 3 to form cold air and fills the air duct cavity.
  • the wind pressure becomes larger and larger, and the cold air passes through the air outlet. 5 blow into the refrigerator room to cool the room. After the cold air is sufficiently heat exchanged in the compartment, it enters the air duct 2 from the return air outlet 4, and thus circulates.
  • the air outlet 5 corresponds to the outer ring of the evaporator 1, or the air outlet 5 and the outer ring of the evaporator 1
  • the other position corresponds to the fact that the wind enters from the inner annular surface of the annular evaporator 1 and exits from the outer annular surface, and finally enters the compartment through the air outlet 5 for cooling.
  • an air duct is disposed at the air outlet 5, and the air duct can function to guide the wind direction, thereby making the temperature in the refrigerator compartment more uniform.
  • the air duct may be perpendicular to the air duct panel 201 or at an angle to the air duct panel 201.
  • the air duct 2 has a duct panel 201 and a duct backplane 202, and a duct inner cavity is formed between the duct panel 201 and the duct backplane 202.
  • the airway panel 201 and the air duct backplane 202 can be connected by a snap connection.
  • the connection manner between the air duct panel 201 and the air duct backplane 202 is not limited by the manner of the card.
  • the return air outlet 4 and the air outlet 5 are both disposed on the air duct panel 201.
  • the return air outlet 4 is located in the middle of the air duct panel 201 , the number of the air outlets 5 is plural, and the air outlets 5 are distributed around the air return opening 4 .
  • the return air opening 4 is located in the middle of the duct panel 201, the sinking cold air flows upward, and the temperature uniformity in the room is greatly improved.
  • the number of the air outlets 5 is plural and distributed around the air return ports 4, temperature uniformity can be further improved.
  • the air return port 4 is not necessarily disposed in the middle of the air duct panel 201, as long as it can be corresponding to the air inlet direction of the centrifugal fan 3.
  • the number and distribution of the air outlets 5 are also not limited by the drawings, and may be any number or may be randomly distributed on the air duct panel 201.
  • the hair unit 1 sufficiently cools the return air, and preferably the air outlet 5 on the air duct panel 201 corresponds to a position other than the outer ring and the outer ring of the evaporator 1.
  • the air inlet is not affected. Under the premise, for the sake of beauty, a hollow pattern can be formed at the air inlet.
  • the centrifugal fan 3 and the evaporator 1 are preferably fixed to the duct back plate 202.
  • the evaporator 1 may have a fixing structure such as a screw hole or a plastic snap, so that the evaporator 1 is assembled to the duct back plate 202 through a screw hole or a plastic snap, of course, the evaporator 1 and the duct back plate 202.
  • the manner of fixing between them is not limited by this embodiment.
  • the base of the centrifugal fan 3 is generally provided with a fixing structure such as a screw hole or a plastic buckle, so that the centrifugal fan 3 is assembled to the air duct back plate 202 through a screw hole or a plastic buckle, of course, the centrifugal fan 3 and the air duct back
  • a fixing structure such as a screw hole or a plastic buckle
  • the duct back plate 202 is the refrigerator inner tank, the evaporator 1 and the centrifugal fan 3 are directly fixed to the refrigerator inner casing. In this case, it is equivalent to eliminating the duct backplane in the conventional technology, thereby saving manufacturing costs.
  • the assembled refrigerator refrigeration system is shown in FIG. 3 to FIG. 5.
  • the return air opening 4 on the air duct panel 201 is disposed to the central axis of the centrifugal fan 3, and the air outlet 5 is disposed around the return air opening 4.
  • the centrifugal fan 3 and the evaporator 1 in the figure are disposed coaxially.
  • the evaporator 1 includes a heat dissipation pipe 101 and heat dissipation fins 102 fixed to the heat dissipation pipe 101.
  • the heat pipe 101 is a hollow pipe for the refrigerant liquid to pass through and evaporate heat.
  • the heat dissipating fins 102 function to enhance heat exchange, and thus the heat dissipating fins 102 are generally made of a metal or a material having a high thermal conductivity.
  • any other form of the evaporator 1 can be used in the embodiment as long as it can satisfy the heat exchange requirement in the embodiment.
  • the S-type heat pipe 101 is employed in this embodiment.
  • the heat pipe 101 is distributed in an S-shape along the radial direction of the evaporator 1, so that the inner ring surface enters the outer ring surface and returns to the wind to perform sufficient heat exchange.
  • the heat radiating fins 102 each extend in the radial direction of the evaporator 1 to ensure uniform heat exchange and to facilitate distribution of the heat radiating fins 102.
  • the evaporator 1 is not limited by the drawings, and the structures of the heat dissipation tubes 101 and the heat dissipation fins 102 are also not limited by the drawings.
  • centrifugal fan 3 of the present embodiment has a structure as shown in FIG. 7. It can be seen from Fig. 7 that the base of the centrifugal fan 3 is provided with screw holes for mounting.
  • centrifugal fan 3 shown in Fig. 7 is disposed just in the middle of the evaporator 1 shown in Fig. 6.
  • the embodiment further provides a refrigerator, which includes the above-mentioned refrigerator refrigeration system.
  • the preferred duct 2 is located at a location of the refrigerator adjacent the rear wall of the refrigerator liner.
  • the invention relates to a refrigerator refrigeration technology, and provides a refrigerator refrigeration system and a refrigerator.
  • the refrigerator refrigeration system includes an air duct disposed in a refrigerating compartment, and a return air outlet and an air outlet opening on the air duct, wherein the air duct is provided with a centrifugal fan and an evaporator, and the evaporator is annular
  • the centrifugal fan is surrounded to exhaust the centrifugal fan toward the inner annular surface of the evaporator; the air inlet direction of the centrifugal fan corresponds to the return air opening.
  • the space utilization ratio of the refrigerator compartment can be improved; in addition, since the centrifugal fan faces the evaporation
  • the inner annular surface of the device is exhausted, so that the wind speed is faster when the wind passes through the evaporator, and the heat exchange efficiency of the evaporator is higher than that of the conventional technology.
  • the refrigerator refrigeration system and the refrigerator have high space utilization and heat exchange efficiency, which are favorable for promotion, and thus have strong practicability.

Abstract

提供一种冰箱制冷系统及冰箱。冰箱制冷系统包括设置在制冷间室中的风道（2），以及开设在风道（2）上的回风口（4）和出风口（5），风道（2）内设置有离心风机（3）和蒸发器（1），蒸发器（1）呈环状并包围离心风机（3），以使得离心风机（3）朝向蒸发器（1）的内环面排风，离心风机（3）的进风方向和回风口（4）对应。由于离心风机（3）和蒸发器（1）均设置在风道（2）中，且离心风机（3）的进风方向和回风口（4）对应，从而可以提高冰箱间室的空间利用率；此外，由于离心风机（3）朝向蒸发器（1）的内环面排风，从而风经过蒸发器（1）时风速较快，换热效率较高。

Description

一种冰箱制冷系统及冰箱 技术领域
本发明涉及冰箱制冷技术，尤其涉及一种冰箱制冷系统及冰箱。
背景技术
请参见图1，现有技术的风冷系统包括设置于冰箱内胆后部的风道002和紧靠在风道002后部或者冰箱的箱体后部的翅片蒸发器001，风道002具有与制冷间室联通的回风口和出风口，蒸发器001利用翅片冷却风道002内的气流。上述风道002还设置有风扇003，当风扇003转动时提供风压，风从回风口经过翅片蒸发器001的管路及翅片与蒸发器001换热，最后经过风道002出风口给间室送风。现有技术中存在的问题是，蒸发器001和风道002及风扇003分开放置，容积占用大；此外，回风经过蒸发器001时风速较慢导致换热效率低；并且，风道002一般需要设置风道背板004，从而制造成本较高。
发明内容
(一)要解决的技术问题
本发明的目的是：提供一种冰箱制冷系统及冰箱，解决现有技术中存在的制冷系统占用空间大和换热效率低的问题。
(二)技术方案
为了解决上述技术问题，本发明提供了一种冰箱制冷系统，包括设置在制冷间室中的风道，以及开设在所述风道上的回风口和出风口，所述风道内设置有离心风机和蒸发器，所述蒸发器呈环状并包围所述离心风机，以使得所述离心风机朝向所述蒸发器的内环面排风；所述离心风机的进风方向和所述回风口对应。
优选地，所述出风口与所述蒸发器的外环相对应，或者所述出风口与所述蒸发器的外环以外的位置相对应。
优选地，所述出风口处设置有导风管。
优选地，所述蒸发器包括呈S型分布的散热管，以及固定在所述散热管上的散热翅片。
优选地，所述蒸发器呈圆环状，所述散热管沿着所述蒸发器的径向呈S型分布，所有所述散热翅片均沿着所述蒸发器的径向方向延伸。
优选地，所述风道具有互相卡接的风道面板和风道背板，所述风道面板和所述风道背板之间形成风道内腔，所述回风口和所述出风口均设置在所述风道面板上，所述离心风机和蒸发器均固定在所述风道背板上。
优选地，所述风道背板为冰箱内胆的后壁。
优选地，所述回风口位于所述风道面板的中部，所述出风口的数量为多个，且所述出风口围绕所述回风口分布。
本发明还提供一种冰箱，包括上述冰箱制冷系统。
优选地，所述风道位于所述冰箱的靠近冰箱内胆后壁的位置处。
(三)有益效果
本发明的技术方案具有以下优点：本发明的冰箱制冷系统，包括设置在制冷间室中的风道，以及开设在所述风道上的回风口和出风口，所述风道内设置有离心风机和蒸发器，所述蒸发器呈环状并包围所述离心风机，以使得所述离心风机朝向所述蒸发器的内环面排风；所述离心风机的进风方向和所述回风口对应。该方案中，由于离心风机和蒸发器均设置在风道中，且离心风机的进风方向和所述回风口对应，从而可以提高冰箱间室的空间利用率；此外，由于离心风机朝向所述蒸发器的内环面排风，从而风经过蒸发器时风速较快，相对传统技术中风过蒸发器的换热效率高。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍， 显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术的冰箱中风冷系统的结构示意图；
图2是实施例中冰箱制冷系统爆炸示意图；
图3是实施例中组装好的冰箱制冷系统的正视示意图；
图4是图3中A-A处的剖视示意图；
图5是实施例中组装好的冰箱制冷系统的俯视示意图；
图6是实施例中蒸发器的结构示意图；
图7是实施例中离心风机的结构示意图；
图8是实施例中冰箱制冷系统在冰箱间室中的安装示意图；
图中：001、蒸发器；002、风道；003、风扇；004、风道背板；1、蒸发器；101、散热管；102、散热翅片；2、风道；201、风道面板；202、风道背板；3、离心风机；4、回风口；5、出风口。
具体实施方式
下面结合附图和实施例对本发明的实施方式作进一步详细描述。以下实施例用于说明本发明，但不能用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，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。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接； 可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
请参见图2，本实施例的冰箱制冷系统，包括设置在制冷间室中的风道2，以及开设在所述风道2上的回风口4和出风口5，所述风道2内设置有离心风机3和蒸发器1，所述蒸发器1呈环状并包围所述离心风机3，以使得所述离心风机3朝向所述蒸发器1的内环面排风；所述离心风机3的进风方向和所述回风口4对应。
其中，环状既包括圆环，还包括椭圆形环、矩形环、六边形环等等，只要该种形状的蒸发器可以包围离心风机并使得离心风机朝向所述蒸发器的内环面排风即可。
此外，“离心风机的进风方向和所述回风口对应”指代的是：回风口设置在离心风机的叶轮轴上或者叶轮轴的附近，以能使得回风进入离心风机的叶轮中为标准。
本实施例中，由于离心风机3和蒸发器1均设置在风道2中，从而可以提高冰箱间室的空间利用率。此外，由于离心风机3朝向所述蒸发器1的内环面排风，且离心风机3的进风方向和所述回风口4对应，从而风经过蒸发器1时风速较快，相对传统技术中蒸发器1的换热效率高。
具体地，离心风机3开启时在其自身进风方向产生负压。由于离心风机3的进风方向和所述回风口4对应，因此在回风口4处产生负压，使得回风通过回风口4进入到离心风机3中。其中，回风经过离心风机3的叶轮之后进行变相(向)并沿着叶轮的径向流动。由于蒸发器1呈环状并包围所述离心风机3，从而可以使得离心风机3朝向所述蒸发器1的内环面排风。风经过包围在离心风机3外侧的蒸发器1冷却后形成冷空气并充满风道腔体，随着风道腔体内的空气越来越多，风压越来越大，冷空气会由出风口5吹入冰箱间室内给间室降温。冷空气在间室内充分换热后又由回风口4进入风道2，如此循环。
在上述基础，为了保证蒸发器1对离心风机3的排风进行充分的冷却，优选出风口5与所述蒸发器1的外环相对应，或者出风口5与所述蒸发器1的外环以外的位置相对应，从而风从环状蒸发器1的内环面进入从外环面离开，并最终通过出风口5进入到间室中进行制冷。当然，将出风口5开设在其它任意位置也是可以的，只要离心风机3排出的风具有一定风速，朝蒸发器1内环面流动的风还是会通过蒸发器1外环面离开蒸发器1。
图2中，出风口5处设置有导风管，该导风管可以起到引导风向的作用，从而使得冰箱间室内的温度更均匀。其中，导风管可以垂直于风道面板201也可以和风道面板201成一定角度。
请进一步参见图2，风道2具有风道面板201和风道背板202，并在风道面板201和风道背板202之间形成风道内腔。其中，风道面板201和风道背板202之间可以采用卡接的方式连接，当然风道面板201和风道背板202之间的连接方式不受卡接方式的限制。并且，优选采用冰箱内胆的后壁作为风道背板202，从而不需要额外设置风道背板202，达到简化结构降低成本的效果。
在上述基础上，所述回风口4和所述出风口5均设置在所述风道面板201上。请进一步参见图2，优选回风口4位于所述风道面板201的中部，所述出风口5的数量为多个，且所述出风口5围绕所述回风口4分布。该种情况下，由于回风口4位于风道面板201的中部，会让下沉的冷空气往上流动，极大的提高的间室内的温度均匀性。并且由于出风口5的数量为多个且围绕所述回风口4分布，从而可以进一步提高温度均匀性。
当然需要说明的是，回风口4并非一定要设置在风道面板201的中部，只要保证其可以和离心风机3进风方向相对应即可。此外，出风口5的数量和分布亦均不受附图的限制，其还可以是任意多个，也可以在风道面板201上随意分布。当然，根据上述提到的“为了保证蒸 发器1对回风进行充分的冷却”，最好使得风道面板201上的出风口5与所述蒸发器1的外环及外环以外的位置相对应。并且，在不影响进风的前提下，为了美观，可以在进风口形成镂空图案。
此外，离心风机3和蒸发器1优选固定在所述风道背板202上。例如，蒸发器1上会有螺钉孔或塑料卡扣之类的固定结构，从而通过螺钉孔或塑料卡扣将蒸发器1装配到风道背板202上，当然蒸发器1和风道背板202之间的固定方式不受本实施例的限制。此外，离心风机3底座上一般设置有螺钉孔或塑料卡扣之类的固定结构，从而通过螺钉孔或塑料卡扣将离心风机3装配到风道背板202上，当然离心风机3和风道背板202之间的固定方式同样不受本实施例的限制。
并且，当风道背板202为冰箱内胆时，则将蒸发器1和离心风机3直接固定在冰箱内胆上。该种情况下，相当于取消了传统技术中的风道背板，从而节约了制造成本。
本实施例中，组装好的冰箱制冷系统请参见图3至图5。从图中可知，风道面板201上的回风口4正对离心风机3的中心轴设置，出风口5则围绕回风口4布置。并且，图中的离心风机3和蒸发器1同轴设置。
本实施例的冰箱制冷系统，其蒸发器1包括散热管101和固定在所述散热管101上的散热翅片102。其中，散热管101为中空的管路，以供制冷液体通过并蒸发吸热。此外，散热翅片102的作用在于增强换热，因此散热翅片102一般采用金属或导热率高的材料制成。当然，除了采用该种翅片式蒸发器1，本实施例中还可以采用其它任意形式的蒸发器1，只要其能满足本实施例中的换热要求即可开。
在此基础上，为了进一步增强散热，本实施例中采用S型散热管101。例如图6中蒸发器1呈圆环状时，此时散热管101沿着所述蒸发器1的径向呈S型分布，从而使得内环面进入外环面离开的回风进行充分换热。并且，优选所述散热翅片102均沿着所述蒸发器1的径向方向延伸，以保证换热均匀并便于散热翅片102的分布。
当然需要说明的是，蒸发器1不受附图的限制，并且散热管101和散热翅片102的结构也不受附图限制。
进一步地，本实施例的离心风机3，其结构请参见图7。从图7中可以看出离心风机3的底座上设置有用于安装的螺钉孔。
并且，进一步参见图3至图5，可以看出图7所示离心风机3正好设置在图6所示蒸发器1中间。
在上述基础上，本实施例还提供一种冰箱，其包括上述冰箱制冷系统。请参见图8，优选风道2位于所述冰箱的靠近冰箱内胆后壁的位置处。
以上实施方式仅用于说明本发明，而非对本发明的限制。尽管参照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，对本发明的技术方案进行各种组合、修改或者等同替换，都不脱离本发明技术方案的精神和范围，均应涵盖在本发明的权利要求范围当中。
工业实用性
本发明涉及冰箱制冷技术，提供一种冰箱制冷系统及冰箱。该冰箱制冷系统，包括设置在制冷间室中的风道，以及开设在所述风道上的回风口和出风口，所述风道内设置有离心风机和蒸发器，所述蒸发器呈环状并包围所述离心风机，以使得所述离心风机朝向所述蒸发器的内环面排风；所述离心风机的进风方向和所述回风口对应。该方案中，由于离心风机和蒸发器均设置在风道中，且离心风机的进风方向和所述回风口对应，从而可以提高冰箱间室的空间利用率；此外，由于离心风机朝向所述蒸发器的内环面排风，从而风经过蒸发器时风速较快，相对传统技术中蒸发器的换热效率高。该冰箱制冷系统及冰箱具有较高的空间利用率和换热效率，利于推广，从而具有极强的实用性。

Claims (10)

  1. 一种冰箱制冷系统，包括设置在制冷间室中的风道，以及开设在所述风道上的回风口和出风口，其特征在于，所述风道内设置有离心风机和蒸发器，所述蒸发器呈环状并包围所述离心风机，以使得所述离心风机朝向所述蒸发器的内环面排风；所述离心风机的进风方向和所述回风口对应。
  2. 根据权利要求1所述的冰箱制冷系统，其特征在于，所述出风口与所述蒸发器的外环相对应，或者所述出风口与所述蒸发器的外环以外的位置相对应。
  3. 根据权利要求1或2所述的冰箱制冷系统，其特征在于，所述出风口处设置有导风管。
  4. 根据权利要求1所述的冰箱制冷系统，其特征在于，所述蒸发器包括呈S型分布的散热管，以及固定在所述散热管上的散热翅片。
  5. 根据权利要求4所述的冰箱制冷系统，其特征在于，所述蒸发器呈圆环状，所述散热管沿着所述蒸发器的径向呈S型分布，所有所述散热翅片均沿着所述蒸发器的径向方向延伸。
  6. 根据权利要求1所述的冰箱制冷系统，其特征在于，所述风道具有互相卡接的风道面板和风道背板，所述风道面板和所述风道背板之间形成风道内腔，所述回风口和所述出风口均设置在所述风道面板上，所述离心风机和蒸发器均固定在所述风道背板上。
  7. 根据权利要求6所述的冰箱制冷系统，其特征在于，所述风道背板为冰箱内胆的后壁。
  8. 根据权利要求6所述的冰箱制冷系统，其特征在于，所述回风口位于所述风道面板的中部，所述出风口的数量为多个，且所述出风口围绕所述回风口分布。
  9. 一种冰箱，其特征在于，包括权利要求1至8中任意一项所 述的冰箱制冷系统。
  10. 根据权利要求9所述的冰箱，其特征在于，所述风道位于所述冰箱的靠近冰箱内胆后壁的位置处。
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