CN109556339B - 具有存放室和蒸发器室的制冷器具 - Google Patents

具有存放室和蒸发器室的制冷器具 Download PDF

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CN109556339B
CN109556339B CN201811071477.3A CN201811071477A CN109556339B CN 109556339 B CN109556339 B CN 109556339B CN 201811071477 A CN201811071477 A CN 201811071477A CN 109556339 B CN109556339 B CN 109556339B
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evaporator
chamber
refrigerator according
refrigerant
housing
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CN109556339A (zh
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B·普夫洛姆
N·利恩戈德
U·克里格斯曼
C·海因
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BSH Hausgeraete GmbH
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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D17/067—Evaporator fan units
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
    • F28D1/024—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels with an air driving element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

在一种制冷器具中，其具有至少一个存放室(13)、蒸发器室(11)和布置在存放室(13)和蒸发器室(11)之间的通道(21)上的、具有旋转轴线(23)的通风装置(22)和布置在蒸发器室(11)中的蒸发器(1)，蒸发器(1)的弧形的制冷剂管道(2)围绕旋转轴线(23)延伸。

Description

具有存放室和蒸发器室的制冷器具
技术领域
本发明涉及一种制冷器具，其具有存放室和与存放室分离的蒸发器室。在这种制冷器具中，通风装置主要安置在存放室和蒸发器室之间的通道上，以便驱动所述室之间的空气交换。蒸发器主要是具有彼此平行的薄片的、几乎长方体状的片式蒸发器，所述薄片将空气流通过片式蒸发器从长方体的一个窄面引导到另一个窄面。
背景技术
通道的尺寸通常明显小于流入侧和流出侧的窄面的长度。这导致，蒸发器的一些部分与其他部分相比关于通道而处于流动技术上更有利的位置并且与此相应地被更强烈地流过。在流动技术上有利的部分中强烈的流动导致，空气在那里比在较不利的部分中较低强度地被冷却。在通道之后穿过蒸发器混合的、不同加温的空气流的存在消极地影响了蒸发器的效率。
蒸发器的不同部分的通流差异越明显，通道越靠近蒸发器的最邻近的流入侧或流出侧的窄面。虽然与此相应地可以通过使蒸发器和通道之间的间距变大来减小通流差异，但是这也导致蒸发器室的大容积，由此在制冷器具给定的外部尺寸的情况下损失了存放室的可用容积。
发明内容
本发明的任务在于，提出一种制冷器具，在该制冷器具中可以在紧凑的蒸发器室中实现蒸发器在其整个横截面上均匀的通流。
该任务通过如下方式来解决，在一种制冷器具中，其具有至少一个存放室、蒸发器室和布置在存放室和蒸发器室之间的通道上的、具有旋转轴线的通风装置和布置在蒸发器室中的蒸发器，蒸发器的弧形的制冷剂管道围绕旋转轴线延伸。制冷剂管道的这种定向实现了空气在蒸发器室中径向地从通道向前流动或者朝向所述通道流动并且在此使制冷剂管道在其弧的整个长度内保持相等的条件下被横断，从而空气在蒸发器的横截面的每个部分中的空气流量和冷却是几乎相同的。
该弧可以在其长度的至少一个部分上是圆弧，旋转轴线在所述圆弧的中心中延伸。
蒸发器能够以公知的方式具有薄片，以便增大可提供用于热交换的表面。所述薄片应该从制冷剂管道在径向方向上突出，以便将空气在径向方向上从通道向前引导或者朝向所述通道引导。
根据第一构型，所述薄片包括至少一个板，所述板螺旋线状地围绕制冷剂管道中的一个制冷剂管道延伸。所述板可以在其背离制冷剂管道的边缘上具有连续的棱边；朝向制冷剂管道的边缘则典型地手风琴状地折叠，以便该边缘可以在其整个长度上固定在制冷剂管道上。替换地，所述板可以在其背离制冷剂管道的边缘上开槽，以便在所述狭槽之间构造多个舌片，当所述板固定在制冷剂管道上时，所述舌片在不同的方向上径向地从制冷剂管道突出。
根据第二构型，两个沿着旋转轴线隔开间距的制冷剂管道通过薄片连接。因此可以构成自身坚硬的、不变形的蒸发器组块。
在传统的长方体状的片式蒸发器中，横向于通流方向延伸的制冷剂管道不仅在通流方向上而且横向于该通流方向地在不同的位置上布置。与此相应地，在根据本发明的蒸发器中也具有横向地在通流方向上、即在相对于旋转轴线的径向方向上隔开间距的制冷剂管道。该制冷剂管道在不阻碍流动的情况下在整个多腔管、特别是微通道多腔管中延伸。
为了在制冷器具中将经过不同的入口通道到达蒸发器室中的空气穿过蒸发器输送到由制冷剂管道弧形地围绕的出口通道或者相反地将经过由制冷剂管道弧形地围绕的入口通道到达蒸发器室中的空气分配到彼此隔开间距的输出开口上，制冷剂管道应该围绕旋转轴线在最小90°的角度上延伸。
出于制造技术的原因优选的是，制冷剂管道围绕旋转轴线延伸的角度不超过180°。如果应需要在下述蒸发器的情况中以大于180°的角度围绕旋转轴线，则该蒸发器由多个蒸发器组块构成。
在家用制冷器具中，存放室和蒸发器室安置在共同的壳体中。存放室在此可以邻接于所述壳体的门，而蒸发器室邻接于所述壳体的与所述门对置的背壁。通道则典型地位于蒸发器室和存放室之间的平行于背壁的分隔壁中。
对于通道补充所需的、用于形成存放室和蒸发器室之间闭合的空气循环回路的空气通道可以在所述壳体的侧壁上从朝向所述门的前端部延伸到蒸发器室，以便在存放室中产生基本上在深度方向上延伸的、均匀地扫过存放室的空气流并且在存放室中特别是在门附近确保足够地冷却。
这种结构特别是实现了均匀地冷却在侧壁和所述侧壁的空气通道之间布置的拉出盒，其方式是，将在空气通道的前端部和存放室背面上的通道之间的空气引导通过拉出盒本身，或者其方式是，在拉出盒的侧壁和壳体的侧壁之间分别设置间隙，在空气通道的所述前端部和所述通道之间的空气可以在所述间隙中循环。
为了构造空气通道和蒸发器室，将内衬装入到所述壳体中，其中，所述通道构造在所述内衬的、在所述室之间延伸的背壁板中，所述内衬还包括侧壁，该侧壁在空气通道和存放室之间延伸。
附图说明
本发明的其他特征和优点参考附图由实施例的下述说明得出。附图中：
图1示出根据本发明的蒸发器的立体图；
图2示出可使用在蒸发器中的微通道管的横截面图；
图3示出根据本发明的第一构型的具有蒸发器的制冷器具的壳体的横截面图；
图4示出沿着深度方向剖割图3的制冷器具壳体的截面图；
图5示出沿着出自图4的平面V-V剖割制冷器具壳体的横截面图；
图6示出根据本发明的第二构型的类似于图3的横截面图；和
图7示出根据本发明的第三构型的类似于图3的横截面图。
具体实施方式
图1示出蒸发器1的立体图，所述蒸发器可以使用在根据本发明的制冷器具中。蒸发器1包括多个弧形的制冷剂管道2，其中多腔管、特别是由铝构成的微通道管3分别并排地一体地延伸。弯曲轴线4对于所有弧形的制冷剂管道2或微通道管3是相同的，并且垂直于微通道管3的宽面。微通道管3在弯曲轴线4的方向上彼此错开并且彼此上下地通过弧5连接，该弧分别在相对于弯曲轴线4径向地延伸的轴线6上定心。
在径向方向上延伸的分配器7焊接在微通道管3的两个自由端部上，所述分配器使在微通道管3中并排地延伸的制冷剂管道2平行地连接并且以制冷剂来供应。管3此外彼此上下地通过薄片8连接，所述薄片在弯曲轴线4的方向上并且相对于所述弯曲轴线延伸，并且所述薄片分别具有两个彼此对置的、在径向方向上延伸的棱边9，所述棱边焊接到微通道管3的宽面上。
薄片8典型地如同管3那样地由铝构成；所述薄片可以至少在其棱边9上设置有焊料层，所述焊料层比铝更低温度地熔化，从而可以进行焊接，其方式是，完成成型的微通道管3与放置在所述微通道管之间的薄片8一起在炉中被加热到焊料的熔化温度。
图2示出微通道管3的可能的横截面。如同在附图的左半部中可看到的那样，相同的紧凑的横截面的大量制冷剂管道2可以并排地沿着微通道管3延伸。为了增大可用于热交换的表面，在制冷剂管道2的内侧上如同在图2的中间和右部示出的那样成型有伸入到制冷剂管道2的自由的横截面中的肋10。
在图3中示出沿着竖直地并且在壳体的宽度方向上通过所述壳体的蒸发器室11延伸的、在图4中以III-III示出的平面剖割根据本发明的制冷器具的壳体的局部截面图。壳体包括内部容器12以及包围内部容器12的隔热层14，所述内部容器限定蒸发器室11和存放室13(见图4)的边界。在俯视图中可以看到在蒸发器室11中的蒸发器1。背壁板15在蒸发器1后方平行于截平面地在蒸发器室11和存放室13之间延伸。两个L形的肋16从背壁板15穿过图3的截平面伸出直到内部容器12的背壁17(见图4)。肋16具有水平的边脚18，所述水平的边脚延伸直到壳体或内部容器12的侧壁19。背壁板15在边脚18上方也一直到达侧壁19上，在边脚18下方在背壁板15和侧壁19之间分别开有通道20。
肋16的竖直的边脚26可以彼此通过下述的肋连接，该肋从背壁板15的上棱边出发并且延伸直到壳体的背壁17，以便向上闭合蒸发器室11。在这里示出的构型中，蒸发器室11向上通过冷却物搁架27的后边缘区域封闭，所述边缘区域将存放室13分成上格室和下格室28，29。
在背壁板15中在中间构造圆形的通道21。轴向通风装置22装配在通道21中。轴向通风装置22的运转方向在此这样选择，以使得所述轴向通风装置将空气通过通道20吸入并且通过通道21吹出到存放室14中。吸入的空气因此从通道20出发从两侧流到蒸发器1上，从所述蒸发器的(在图3中由虚线示出的)薄片8向上朝向轴向通风装置22和通道21的方向偏转并且从轴向通风装置22穿过通道21回到存放室13的下格室29中。
在图3的图示中，微通道管3的弯曲轴线4与通风装置22的旋转轴线23重合。蒸发器1的侧边缘区域24与蒸发器1的中间区域25相比对于从通道20出发的空气流动而言是更好的并且能够在更小改变流动方向的情况下到达。为了加强中间区域25的通流，可以不同于图3的图示地将弯曲轴线4定位在旋转轴线23上方。通过由此使蒸发器1的中间区域25比侧边缘区域24更靠近旋转轴线23，所述中间区域经受通风装置22更强的吸力，从而可以使在中间区域25中的每个自由横截面积的空气流量与边缘区域24的每个自由横截面积的空气流量相匹配。
薄片8在图3中准确地相对于旋转轴线23并且相对于弯曲轴线4径向地定向，即为下述的直线，所述直线使薄片8延长、彼此相交于轴线4，23上。如果旋转轴线23和弯曲轴线4如前所述地不重合，则薄片8优选地相对于弯曲轴线4径向地定向。
凹进部30设置在蒸发器室的底部中，以便收集融水，所述融水在蒸发器1除霜时从所述蒸发器排出。融水通过从凹进部30的最深点出发穿过隔热层14延伸的通道31从蒸发器室11到达外界中、优选地到达被设置在壳体中的蒸发器室11下方的机器室32中的蒸发壳中。
图4示出在壳体的深度方向上沿着旋转轴线23剖割存放室13和蒸发器室11的截面图。轴向通风装置22安置在短的管接头33中，所述管接头从通道21突出到存放室13中。替代轴向通风装置22也可以在蒸发器室11中的通道21上布置径向通风装置，所述径向通风装置通过通道20抽吸，被吸入的空气在径向方向上穿过蒸发器1向前排出。
空心的侧壁34从背壁板15的侧边缘沿着壳体的侧壁19向前延伸直到壳体的敞开的、在运行中通常通过门封闭的前侧35附近。侧壁34可以注射成型为与背壁板15一体的内衬或者与背壁板15组合成内衬组件，所述内衬组件在制冷器具组装时从前侧35被推入到内部容器12中。
在推入的状态中，侧壁34与壳体的相邻的侧壁19一起分别限定空气通道36的边界，所述空气通道从前端部上的入口37延伸到背壁板11的通道20。从周围环境至存放室13的热量流通常在前端部附近特别强，因为在此通常仅仅磁密封件使存放室13与周围环境隔离。在磁密封件处加热的空气可以通过空气通道36被吸入并且在通过蒸发器1时被冷却；由此可以阻止经过磁密封件进入存放室13中的热量扩散并且限制存放室13的门附近的热区域和背壁附近的冷区域之间的温度降。
入口37可以分别如同在图4中示出的那样设置有格栅，以便阻止异物进入到空气通道36中。
图5示出沿着平行于平面III-III的、在图4中以V-V示出的平面剖割制冷器具的壳体的截面图。在这个截面图中，可以明显地看到空气通道36和侧壁34，该空气通道在壳体的两个侧壁19上延伸，该侧壁将空气通道36与存放室13分隔开。
蒸发器1的微通道管3一方面应该是尽可能宽的，以便流过蒸发器的空气在尽可能长的路径上循环并且在此冷却；另一方面微通道管3围绕垂直于其宽面的弯曲轴线4的可弯性越小，微通道管3越宽。为了防止微通道管3的过度弯曲导致制造蒸发器1时出问题并且同时确保空气在其路径上充分地冷却，为此有益的是，如图6中所示的两个蒸发器1，1′串联地布置在空气通过蒸发器室11的路径上。优选地，两个蒸发器1，1′是同心的，也就是说，以相互重合的弯曲轴线4布置。
为了确保两个蒸发器1，1′在其整个通过横截面上均匀的通流，这两个蒸发器关于弯曲轴线4展开相同的角度α。如同在图3的情况中那样，该角度测定为在90°和180°之间。
外部的蒸发器1′的各个微通道管2′比内部的蒸发器1的管2长，所述外部的蒸发器的各个微通道管与管2相比提供用于更多数量的薄片8的空间。通过在两个蒸发器1，1′的情况中将沿着管2，2′的相对于轴线4同心的圆弧、例如中性轴线测量的在所述薄片8之间的间距选择为相同的，可以确保在外部的蒸发器1′中的热交换的高效率，而同时避免由于薄片8的靠近轴线的端部之间过小的间距消极地影响在内部的蒸发器中的空气流。
在图6的构型中，蒸发器1，1′也关于制冷剂的流动串联地连接；管区段38径向地在蒸发器1，1′的两个分配器7，7′之间延伸。喷入部位在此通过毛细管39通入到分配器7中而构造在内部的蒸发器1的另外的分配器7上，从而使制冷剂和空气分别反向地流过两个蒸发器1，1′。
在图7的构型中，制冷器具的壳体和内衬与在图3或6所示的壳体和内衬相同。蒸发器1"的制冷剂管道2"由柱形的管构成，所述柱形的管弧形地围绕弯曲轴线4和通风装置22的旋转轴线23延伸。制冷剂管道2"在此通过弧5"串联地连接并且以围绕轴线4不同的半径延伸。另外的弧形的制冷剂管道可以沿着轴线4彼此错开地布置。给每个制冷剂管道2"配置一个条形的薄片8"，所述条形的薄片在其纵向棱边上与制冷剂管道2"焊接并且环绕地径向地从制冷剂管道2"突出。
附图标记列表
1，1′ 蒸发器
2，2" 制冷剂管道
3，3′ 微通道管
4 弯曲轴线
5，5" 弧
6 泡沫横杆
7，7′ 分配器
8，8" 薄片
9 棱边
10 肋
11 蒸发器室
12 内部容器
13 存放室
14 隔热层
15 背壁板
16 肋
17 背壁
18 (肋16的)水平的边脚
19 侧壁
20 通道
21 通道
22 轴向通风装置
23 旋转轴线
24 (蒸发器1的)侧边缘区域
25 (蒸发器1的)中间区域
26 (肋16的)竖直的边脚
27 冷却物搁架
28 上格室
29 下格室
30 凹进部
31 通道
32 机器室
33 管接头
34 侧壁
35 前侧
36 空气通道
37 入口
38 管区段
39 毛细管。

Claims (10)

1.一种制冷器具，其具有至少一个存放室(13)、蒸发器室(11)和布置在所述存放室(13)和所述蒸发器室(11)之间的通道(21)上的、具有旋转轴线(23)的通风装置(22)以及布置在所述蒸发器室(11)中的蒸发器(1)，其特征在于，所述蒸发器(1)具有围绕所述旋转轴线(23)延伸的弧形的制冷剂管道(2)；在相对于所述旋转轴线的径向方向上隔开间距的制冷剂管道(2)在共同的多腔管(3)中延伸。
2.根据权利要求1所述的制冷器具，其特征在于，所述蒸发器(1)具有薄片(8，8")，所述薄片从所述制冷剂管道(2)在径向方向上突出。
3.根据权利要求2所述的制冷器具，其特征在于，所述薄片(8")包括至少一个板，所述板螺旋线状地围绕所述制冷剂管道(2")中的一个制冷剂管道延伸。
4.根据权利要求2所述的制冷器具，其特征在于，两个沿着所述旋转轴线隔开间距的制冷剂管道(2)通过所述薄片(8)连接。
5.根据前述权利要求中任一项所述的制冷器具，其特征在于，所述制冷剂管道(2)围绕所述旋转轴线(23)在最小90°的角度上延伸。
6.根据权利要求1-4中任一项所述的制冷器具，其特征在于，所述制冷剂管道(2)围绕所述旋转轴线(23)在最大180°的角度上延伸。
7.根据权利要求1-4中任一项所述的制冷器具，其特征在于，所述存放室(13)和所述蒸发器室(11)安置在共同的壳体中，所述存放室(13)邻接于所述壳体的门，所述蒸发器室(11)邻接于所述壳体的与所述门对置的背壁(17)。
8.根据权利要求7所述的制冷器具，其特征在于，空气通道(36)在所述壳体的侧壁(19)上从朝向所述门的前端部延伸到所述蒸发器室(11)。
9.根据权利要求8所述的制冷器具，其特征在于，所述空气通道(36)在拉出盒的两侧延伸。
10.根据权利要求8或9所述的制冷器具，其特征在于，将内衬装入到所述壳体中，所述通道(21)构造在所述内衬的、在存放室(13)与蒸发器室(11)之间延伸的背壁板(15)中，所述内衬还包括侧壁(34)，该侧壁在所述空气通道(36)和所述存放室(13)之间延伸。
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