WO2023116713A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2023116713A1
WO2023116713A1 PCT/CN2022/140429 CN2022140429W WO2023116713A1 WO 2023116713 A1 WO2023116713 A1 WO 2023116713A1 CN 2022140429 W CN2022140429 W CN 2022140429W WO 2023116713 A1 WO2023116713 A1 WO 2023116713A1
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WO
WIPO (PCT)
Prior art keywords
cooler
glass tube
refrigerator
tube heater
heater
Prior art date
Application number
PCT/CN2022/140429
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English (en)
French (fr)
Inventor
村田和士
Original Assignee
海尔智家股份有限公司
青岛海尔电冰箱有限公司
Aqua 株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 海尔智家股份有限公司, 青岛海尔电冰箱有限公司, Aqua 株式会社 filed Critical 海尔智家股份有限公司
Publication of WO2023116713A1 publication Critical patent/WO2023116713A1/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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • 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
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating

Definitions

  • the invention provides a refrigerator, which belongs to the technical field of household appliances.
  • the refrigerator includes a cooler (evaporator) for cooling gas returned from a storage room (eg, a freezer room).
  • a cooler evaporator
  • FIG. 4 is a perspective view showing the structure of a conventional cooler 40 .
  • FIG. 5 is a vertical sectional view showing a main part of a refrigerator including a conventional cooler 40 .
  • the cooler 40 includes a refrigerant flow pipe 41 through which the refrigerant flows and a plurality of cooling fins 42 in contact with the refrigerant flow pipe 41 .
  • the gas returned from the storage room 50 to the cooling room 51 flows into the cooling room 51 through the return passage 52 adjacent to the bottom side of the cooling room 51 .
  • the gas flowing into the cooling chamber 51 rises inside the cooling chamber 51 to reach the cooler 40 .
  • the rising gas comes into contact with the refrigerant flow pipe 41 and the cooling fins 42 .
  • the gas passing through the cooler 40 is cooled as a result of heat exchange between the gas and the refrigerant.
  • the refrigerant flow pipe 41 of the cooler 40 and the cooling fins 42 that transfer heat from the refrigerant flow pipe 41 are cooled to an extremely low temperature (for example, about -30° C.).
  • an extremely low temperature for example, about -30° C.
  • the surfaces of the refrigerant flow pipes 41 and the cooling fins 42 are frosted due to moisture contained in the gas.
  • a defrosting mechanism is provided, such as those disclosed in Japanese Patent Laid-Open No. 2021-76307, Japanese Patent Laid-Open No. 2020-101310, and Japanese Patent Laid-Open No. 2019-203639.
  • the disclosed defrosting mechanism is arranged on the bottom side of the cooler, and includes a glass tube heater (for example, Fig. 4 and Fig. 5 with the heater indicated by symbol 43).
  • a glass tube heater for example, Fig. 4 and Fig. 5 with the heater indicated by symbol 43.
  • frost is heated by heat from the glass tube heater 43
  • melted ice and water may drop to the glass tube heater 43 .
  • the defrosting mechanism as disclosed in the above patent document also includes a plate-shaped cover (for example, a part indicated by symbol 44 in FIG. 5 ) that protects the glass tube heater 43 from falling ice and water.
  • the plate-shaped cover 44 is located between the cooler 40 and the glass tube heater 43 , there is a problem that the heat rays emitted from the glass tube heater 43 are blocked by the cover 44 . As a result, the amount of heat reaching the frost formed on the cooler 40 from the glass tube heater 43 is reduced. In other words, even though the glass tube heater 43 with high heat generation capability is used, the heating efficiency is lowered, and there is a possibility that the defrosting effect cannot be fully exhibited.
  • an object of the present invention is to provide a refrigerator capable of reducing the manufacturing cost without reducing the heating efficiency from the glass tube heater.
  • an embodiment of the present invention provides a refrigerator.
  • the refrigerator includes:
  • a glass tube heater arranged on the bottom side of the cooler
  • the glass heater tube is arranged in a region other than the projected region of the cooler when viewed from above.
  • the glass tube heater of the present invention is arranged in a region other than the projected region of the cooler viewed from above (for example, a region other than the region directly under the cooler).
  • ice and water melted by the cooler do not drop onto the glass tube heater. Therefore, according to the present invention, there is no need for a member between the glass tube heater and the cooler to prevent breakage of the glass tube heater (for example, the aforementioned plate-shaped cover, etc.), and the heating efficiency from the glass tube heater is therefore not reduced. reduce.
  • a member for preventing breakage of the glass tube heater can be omitted, it enables reduction of manufacturing cost.
  • the cooler includes a pair of end plates disposed on the bottom sides of both sides of the cooler,
  • the end plate includes a heater support portion located on the front side of the projected area of the cooler for supporting the glass tube heater.
  • the glass tube heater of the present invention is supported at a position on the front side of the cooler in plan view by the heater support portions of the pair of end plates disposed on the bottom sides of both sides of the cooler. Therefore, according to the present invention, in addition to not reducing the heating efficiency from the glass tube heater, and without greatly changing the arrangement structure of the cooler in the storage room, etc., the glass tube heater can be arranged at a desired position and modified. low cost.
  • the heater supporting portion is set as a concave portion recessed forward at the end of the plate;
  • Both ends of the glass tube heater are embedded at the heater supporting part. In this way, the embedded mounting method is convenient for installation.
  • the refrigerator further includes a heat insulating member for separating the storage room from the glass tube heater.
  • a heat insulating member for separating the storage room from the glass tube heater.
  • a surface of the heat insulating member facing the glass tube heater is a heat ray reflecting surface for reflecting heat rays from the glass tube heater.
  • heat rays irradiated from the glass tube heater to the heat insulating member side can be reflected to the cooler side.
  • the heating efficiency from the glass tube heater can be further improved.
  • the heat light reflecting surface is set as a metal film with high light reflectivity.
  • the refrigerator further includes a spacer, the spacer is located at the rear side of the storage room and in front of the cooler, so as to define a cooling room for accommodating the cooler;
  • the heat insulating member is provided as a plate member and extends from a bottom end of the spacer to a bottom side. In this way, the heat insulation component and the spacer can be installed integrally, which facilitates the production and manufacture of the refrigerator.
  • the refrigerator includes a return passage at the bottom of the storage chamber, and the gas in the storage chamber flows into the cooling chamber through the return passage.
  • the defrosting efficiency can be further improved.
  • an embodiment of the present invention provides a refrigerator.
  • the refrigerator includes:
  • a defrosting mechanism arranged on the bottom side of the cooler
  • the defrosting mechanism is characterized in that the defrosting mechanism is disposed outside of a drop area of water from melted frost of the cooler.
  • the defrosting mechanism of this invention is arrange
  • ice and water melted by the cooler do not drop onto the defrosting mechanism. Therefore, according to the present invention, there is no need for a member between the defrosting mechanism and the cooler to prevent damage to the defrosting mechanism (for example, the above-mentioned plate-shaped cover, etc.), and thus the heating efficiency from the defrosting mechanism does not decrease.
  • a part for preventing breakage of the defroster mechanism can be omitted, it enables reduction of manufacturing cost.
  • the refrigerator also includes:
  • the spacer is located at the rear side of the storage room and in front of the cooler, so as to define a cooling room for accommodating the cooler;
  • the defrosting mechanism is located in front of the drop zone. In this way, combined with the setting positions of the defrosting mechanism and the return channel, the heating efficiency of the defrosting mechanism can be further improved, and the defrosting effect can be optimized.
  • Fig. 1 is a side vertical sectional view of a refrigerator according to an embodiment of the present invention
  • Fig. 2 is a side vertical sectional view of a freezer compartment according to an embodiment of the present invention.
  • Fig. 3 is the perspective view of the structure of the cooler of an embodiment of the present invention.
  • Fig. 4 is a perspective view showing the structure of a conventional cooler
  • Fig. 5 is a vertical sectional view of a main part of a refrigerator including a conventional cooler.
  • Refrigerator 1. Refrigerator; 2. Heat insulation box; 5. Freezer; 72. Cooling chamber; 73. Cooler (evaporator); 731. Refrigerant circulation pipe; 732. Cooling fin; 733. Glass tube heater; 734 , the projected area of the cooler; 735, the end plate; 736, the heater supporting part; 76, the heat insulating part; 761, the surface of the heat insulating part opposite to the glass tube heater
  • the "up and down” direction corresponds to the height direction of the refrigerator 1
  • the "left and right” direction corresponds to the width direction of the refrigerator 1
  • the "front and rear” direction corresponds to the depth direction of the refrigerator 1.
  • FIG. 1 is a vertical sectional view of a refrigerator 1 provided by this embodiment
  • FIG. 2 is a side vertical sectional view of a freezer compartment 4 in the refrigerator 1
  • FIG. 3 shows a cooler 73 of this embodiment. perspective view of the structure.
  • the refrigerator 1 provided in this embodiment includes a heat insulation box 2 equivalent to a main body of the refrigerator.
  • the heat insulation box 2 includes a plurality of storage rooms.
  • each of the plurality of storage compartments corresponds to the refrigerating compartment 3, the vegetable compartment 4, and the freezing compartment 5 in order from top to bottom.
  • the configuration of the refrigerator compartment 3, the vegetable compartment 4, and the freezer compartment 5 is not limited thereto.
  • the heat insulation box 2 includes an outer case 2a made of steel plate, an inner case 2b made of synthetic resin, and a heat insulating material 2c made of foamed polyurethane filled in a gap formed between the outer case 2a and the inner case 2b.
  • a plurality of heat insulating partition walls are disposed inside the heat insulating box 2 .
  • the refrigerator compartment 3, the vegetable compartment 4, and the freezer compartment 5 are divided by these insulating partition walls 6a, 6b.
  • the rear side of the freezer compartment 5 is partitioned into a cooling compartment 72 by members such as a partition body 71 . Further, a cooler 73 is provided in the cooling chamber 72 .
  • region of the partition body 71) of the cooling room 72 front side of the freezing room 5 is called "the freezing room 5.”
  • the gas flowing in the freezing chamber 5 and cooling the stored items (for example, frozen food) stored in the freezing chamber 5 flows into the cooling chamber 72 through the return passage 74 at the bottom of the freezing chamber 5 .
  • the pressure on the upper side of the cooling chamber 72 is lower than that on the bottom side due to the drive of the fan 75 provided on the upper side of the cooling chamber 72 . Therefore, the gas flowing into the cooling chamber 72 rises in the cooling chamber 72 . Then, the gas flowing into the cooling chamber 72 flows into the cooler 73 .
  • the gas which has reached the cooler 73 comes into contact with the refrigerant flow pipe 731 shown in FIG. 3 and the plurality of cooling fins 732 in contact with the refrigerant flow pipe 731 .
  • the gas reaching the cooler 73 exchanges heat with the refrigerant to cool the gas.
  • the cooled gas rises in the cooling chamber 72 and is blown again by the fan 75 to storage rooms such as the freezer room 5 .
  • the refrigerant flow pipe 731 and the cooling fins 732 are frosted due to moisture in the gas passing through the cooler 73 .
  • a glass tube heater 733 is provided as a defrosting mechanism. In this way, the heat (heat rays) from the glass tube heater 733 reaches at least the cooler 73 , thereby melting the frost formed on the refrigerant flow tube 731 and the cooling fins 732 .
  • the glass tube heater 733 of this embodiment includes, for example, a nichrome wire not shown in the figure and a cylindrical glass tube for accommodating the nichrome wire.
  • cables and power sources not shown in the figure are connected to both ends of the nichrome heat-resistant alloy wire. Current from the power source flows through the cable to the nichrome wire to heat the nichrome wire. This makes it possible to irradiate heat rays to the outside of the glass tube.
  • the glass tube heater 733 of this embodiment is located on the bottom side of the cooling chamber 72, and at the same time, the glass tube heater 733 is arranged in an area other than the projected area 734 of the cooler 73 in plan view.
  • the projected area 734 of the cooler 73 viewed from above refers to an area where the cooler 73 is projected (projected) when the cooler 73 is viewed from above (for example, an area directly below the cooler 73 ).
  • the “area other than the projected area 734 ” means, for example, an area on the front side or rear side of the area directly under the cooler 73 .
  • the glass tube heater 733 is arranged in an area other than the projected area 734, it is not located in an area where ice and water fall due to melting of frost. Therefore, according to the present embodiment, there is no need for a member for preventing the glass tube heater 733 from breaking (for example, the aforementioned plate-shaped cover, etc.) interposed between the glass tube heater 733 and the cooler 73 . In this way, the heating efficiency from the glass tube heater 733 is not lowered. Furthermore, according to the present embodiment, since parts for preventing breakage of the glass tube heater 733 can be omitted, it is possible to reduce the manufacturing cost.
  • the cooler 73 includes a pair of end plates 735A, 735B disposed on the bottom side of both side portions 73S of the cooler 73 .
  • the end plates 735A, 735B include heater support portions 736A, 736B located on the front side of the projection area 734 of the cooler 73 for supporting the glass tube heater 733 .
  • the form of the heater supporting parts 736A and 735B is not particularly limited as long as it can support the glass tube heater 733 .
  • the heater supporting parts 736A and 735B may be concave parts that are recessed forward as shown in FIG. 3 , or the like. Both ends of the glass tube heater 733 are fitted into heater support portions 736A, 736B recessed on the end plates 735A, 735B. In this way, the glass tube heater 733 of this embodiment is arranged (supported) on the front side of the projected area 734 (directly below area) of the cooler 73 .
  • the glass tube heater 733 is located on the front side of the projection area 734 of the cooler 73, the heating efficiency from the glass tube heater 733 does not decrease. Furthermore, the glass tube heater 733 can be arranged at a desired position without greatly changing the arrangement structure of the cooler 73 in the freezer compartment 5, and the production cost is low.
  • the refrigerator 1 of this embodiment further includes a heat insulating member 76 for separating the freezing chamber 5 and the glass tube heater 733 .
  • the heat insulating member 76 of the present embodiment is a plate-shaped member such as a plate-shaped member extending from the bottom end of the spacer 71 to the bottom side.
  • the heat transferred from the glass tube heater 733 to the freezing compartment 5 can be insulated. This can effectively prevent the reduction of the freezing efficiency in the freezing compartment 5 due to the glass tube heater 733 .
  • the surface 761 of the heat insulating member 76 facing the glass tube heater 733 is preferably a heat ray reflecting surface that reflects heat rays from the glass tube heater 733 .
  • the facing surface 761 is formed of a metal thin film with high light reflectivity.
  • heat insulating member 76 including such opposing surfaces 761 , heat rays irradiated from the glass tube heater 733 to the heat insulating member 76 side can be efficiently reflected to the cooler 73 side. Thus, the heating efficiency from the glass tube heater 733 can be further improved.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Defrosting Systems (AREA)

Abstract

本发明提供一种冰箱。所述冰箱包括：贮藏室；设在所述贮藏室内的冷却器；以及配设在所述冷却器底侧的玻璃管加热器；所述玻璃加热器管从俯视来看配设在所述冷却器的投影区域以外的区域。如此，本发明的冰箱不降低来自玻璃管加热器的加温效率，并且使得能够降低制造成本。

Description

冰箱 技术领域
本发明提供一种冰箱，属于家用电器技术领域。
背景技术
冰箱包括用于冷却从贮藏室(例如，冷冻室)返回的气体的冷却器(蒸发器)。在此参考图4和图5来说明以往的冷却器40的结构。图4是示出以往的冷却器40的结构的立体图。此外，图5是示出包括以往的冷却器40的冰箱的主要部分的竖直截面图。
如图4所示，冷却器40包括内部供冷媒流动的冷媒流通管41和与冷媒流通管41接触的多个冷却翅片42。此外，如图5所示，从贮藏室50返回冷却室51(容纳冷却器40的空间)的气体经由邻近冷却室51的底侧的返回通道52而流入冷却室51。进一步地，流入冷却室51的气体在冷却室51内上升以到达冷却器40。此时，上升的气体与冷媒流通管41和冷却翅片42接触。这样，作为气体与冷媒热交换的结果，就冷却了通过冷却器40的气体。
冷却器40的冷媒流通管41和从冷媒流通管41传递热量的冷却翅片42被冷却至极低温(例如，约-30℃)。其结果是，冷媒流通管41和冷却翅片42的表面会由于气体中含有的水分而结霜。进一步地，当结霜发展到填充相邻的冷却翅片42之间的间隙的程度时，会阻碍通过冷却器40的气体与冷媒之间的顺利的热交换。为此，设有除霜机构，例如日本特开2021-76307号公报、日本特开2020-101310号公报、日本特开2019-203639号公报等专利文献中所公开的。
如上的专利文献中，公开的除霜机构配设在冷却器的底侧，并且包括用于对在冷媒流通管和冷却翅片上结的霜进行加热的玻璃管加热器(例如，图4和图5中用符号43示出的加热器)。在因来自玻璃管加热器43的热量而使霜升温时，融化的冰和水有时会下落到玻璃管加热器43。为此，如上专利文献中公开的除霜机构还包括针对落下的冰和水保护玻璃管加热器43的板状罩(例如，图5中用符号44示出的部件)。
然而，由于板状罩44位于冷却器40与玻璃管加热器43之间，因此会有从玻璃管加热器43发出的热光线会被罩44遮蔽的问题。其结果是减少了从玻璃管加热器43到达在冷却器40上结的霜的热量。换言之，尽管使用发热能力高的玻璃管加热器43，加温效率还是会降低，并且恐怕无法充分发挥除霜效果。
发明内容
鉴于现有技术所存在的问题，本发明的目的在于提供一种冰箱，其不降低来自玻璃管加热器的加温效率，并且能够降低制造成本。
为了实现上述发明目的，本发明一实施方式提供了一种冰箱。所述冰箱包括：
贮藏室；
设在所述贮藏室内的冷却器；以及
配设在所述冷却器底侧的玻璃管加热器；
所述玻璃加热器管从俯视来看配设在所述冷却器的投影区域以外的区域。
如此，本发明的玻璃管加热器配设在从俯视来看的冷却器的投影区域以外的区域(例如，冷却器的正下方区域以外的区域)。于是，被冷却器融化的冰和水不会下落到玻璃管加热器上。因此，根据本发明，不需要介于玻璃管加热器与冷却器之间的防止玻璃管加热器破损的部件(例如，前述板状罩等)，来自玻璃管加热器的加温效率因此不会降低。此外，根据本发明，由于可以省去防止玻璃管加热器破损的部件，因此使得能够降低制造成本。
优选地，所述冷却器包括配设在所述冷却器的两侧部的底侧的一对端板，
所述端板包括加热器支撑部，其位于所述冷却器的所述投影区域前方侧，用于支撑所述玻璃管加热器。
如此，借助于配设在冷却器的两侧部的底侧的一对端板的加热器支撑部，将本发明的玻璃管加热器支撑在冷却器的俯视投影区域前方侧的位置。因此，根据本发明，除了不会降低来自玻璃管加热器的加温效率，也不会大幅变更贮藏室内的冷却器的配设构造等，就能够将玻璃管加热器配置在期望的位置，改造成本低。
可选的，所述加热器支撑部设置为在所述板端向前凹陷设置的凹状部位；
所述玻璃管加热器的两端嵌入到所述加热器支撑部处。如此，这种嵌装的方式安装方便。
优选地，所述冰箱还包括用于分隔所述贮藏室与所述玻璃管加热器的隔热部件。如此，即使玻璃管加热器位于冷却器的俯视投影区域前方侧，也能够对从玻璃管加热器向贮藏室侧的传递的热量进行隔热。
优选地，所述隔热部件的与所述玻璃管加热器相对的面是用于反射来自所述玻璃管加热器的热光线的热光线反射面。如此，可以将从玻璃管加热器向隔热部件侧照射的热光线反射至冷却器侧。于是，根据本发明，来自玻璃管加热器的加温效率可以进一步提高。
优选地，所述热光线反射面设置为光反射性高的金属薄膜。
优选地，所述冰箱还包括间隔体，所述间隔体位于所述贮藏室后侧、所述冷却器前方，以限定出容纳所述冷却器的冷却室；
所述隔热部件设置为板状部件并且从所述间隔体的底端向底侧延伸。如此，隔热部件和间隔体可以一体地安装，方便冰箱的生产制造。
优选地，所述冰箱包括位于所述贮藏室底部的返回通道，位于所述贮藏室的气体经由所述返回通道流入所述冷却室。如此，结合前述玻璃管加热器的设置位置，可以进一步提高化霜效率。
为了实现上述发明目的，本发明一实施方式提供了一种冰箱。所述冰箱包括：
贮藏室；
设在所述贮藏室内的冷却器；以及
配设在所述冷却器底侧的除霜机构；
其特征在于，所述除霜机构配设在所述冷却器的霜融化而成的水的落下区域之外。
如此，本发明的除霜机构配设在所述冷却器的霜融化而成的水的落下区域之外。于是，被冷却器融化的冰和水不会下落到除霜机构上。因此，根据本发明，不需要介于除霜机构与冷却器之间的防止除霜机构破损的部件(例如，前述板状罩等)，来自除霜机构的加温效率因此不会降低。此外，根据本发明，由于可以省去防止除霜机构破损的部件，因此使得能够降低制造成本。
优选地，所述冰箱还包括：
间隔体，所述间隔体位于所述贮藏室后侧、所述冷却器前方，以限定出容纳所述冷却器的冷却室；
位于所述贮藏室底部的返回通道，位于所述贮藏室的气体经由所述返回通道流入所述冷却室；
所述除霜机构位于所述落下区域的前方。如此，结合除霜机构、返回通道的设置位置，可以进一步提高除霜机构的加温效率，优化化霜效果。
附图说明
图1是本发明一实施例的冰箱的侧视竖直截面图；
图2是本发明一实施例的冷冻室的侧视竖直截面图；
图3是本发明一实施例的冷却器的结构的立体图；
图4是示出以往的冷却器的结构的立体图；
图5是包括以往的冷却器的冰箱的主要部分的竖直截面图。
附图标记说明：
1、冰箱；2、隔热箱体；5、冷冻室；72、冷却室；73、冷却器(蒸发器)；731、冷媒流通管；732、冷却翅片；733、玻璃管加热器；734、冷却器的投影区域；735、端板；736、加热器支撑部；76、隔热部件；761、隔热部件的与玻璃管加热器相对的面
具体实施方式
接下来，参考附图来详细说明本发明的一个实施例所提供的冰箱。此外，在对本实施例所提 供的冰箱进行说明时，“上下”方向对应于冰箱1的高度方向，“左右”方向对应于冰箱1的宽度方向，并且“前后”方向对应于冰箱1的纵深方向。
参考图1至图3来说明本发明第一实施例所提供的冰箱的结构。在此，图1是本实施例所提供的冰箱1的竖直截面图，图2是冰箱1中的冷冻室4的侧视竖直截面图，图3是示出本实施例的冷却器73的结构的立体图。
如图1所示，本实施例所提供的冰箱1包括相当于冰箱主体的隔热箱体2。如图2所示，隔热箱体2包括多个贮藏室。此外，多个贮藏室中的每一个从上至下依次对应于冷藏室3、蔬菜室4和冷冻室5。然而，冷藏室3、蔬菜室4和冷冻室5的配置不限于此。
此外，隔热箱体2包括钢板制的外箱2a、合成树脂制的内箱2b以及填充于形成在外箱2a与内箱2b之间的间隙内的发泡聚氨酯制的隔热材料2c。隔热箱体2内部配设有多个隔热间隔壁(例如，图1中用符号6a、6b示出的部件)。借助于这些隔热间隔壁6a、6b来划分冷藏室3、蔬菜室4和冷冻室5。
如图2所示，借助于间隔体71等的部件将冷冻室5的后侧划分出冷却室72。进一步地，冷却室72内设有冷却器73。此外，在接下来的说明中，将冷冻室5的冷却室72前方侧的区域(即间隔体71的前方区域)称为“冷冻室5”。
在冷冻室5内流动的冷却了贮藏在冷冻室5中的被贮藏物(例如，冷冻食品)的气体经由位于冷冻室5底部的返回通道74流入冷却室72。此外，在冷却室72中，由于设在冷却室72上方侧的风扇75的带动，冷却室72的上方侧的压力比底侧低。因此，流入冷却室72的气体在冷却室72内上升。于是，流入冷却室72的气体向冷却器73流动。
进一步地，到达冷却器73的气体与图3所示的冷媒流通管731和与冷媒流通管731接触的多个冷却翅片732相接触。这样，到达冷却器73的气体与冷媒进行热交换，从而冷却气体。进一步地，经冷却的气体在冷却室72内上升，通过风扇75而再次送风至冷冻室5等的贮藏室。
然而，冷媒流通管731和冷却翅片732会因通过冷却器73的气体中的水分而结霜。如图1至图3所示，设有玻璃管加热器733作为除霜机构。这样，来自玻璃管加热器733的热量(热光线)至少到达冷却器73，从而融化冷媒流通管731和冷却翅片732上结的霜。
本实施例的玻璃管加热器733包括例如图中未示出的镍铬耐热合金线和用于容纳镍铬耐热合金线的圆筒状玻璃管。此外，在镍铬耐热合金线的两端连接有图中未示出的线缆和电源。来自电源的电流经由线缆流到镍铬耐热合金线以使镍铬耐热合金线发热。这样就可以向玻璃管外照射热光线。
本实施例的玻璃管加热器733位于冷却室72的底侧，与此同时，从俯视来看，玻璃管加热 器733配设在冷却器73的投影区域734以外的区域中。此外，从俯视来看的冷却器73的投影区域734是指在从上方看冷却器73的情况下的冷却器73投影(射影)的区域(例如，冷却器73的正下方区域)。与此相对，“投影区域734以外的区域”是指例如冷却器73的正下方区域前方侧或后方侧的区域。
这样，玻璃管加热器733配设在投影区域734以外的区域，因此没有位于因霜的融化而产生的冰和水的落下区域。因此，根据本实施例，不需要介于玻璃管加热器733与冷却器73之间的用于防止玻璃管加热器733破损的部件(例如，前述板状罩等)。这样，不会降低来自玻璃管加热器733的加温效率。此外，根据本实施例，由于可以省去用于防止玻璃管加热器733破损的部件，因此使得能够降低制造成本。
在此，冷却器73包括配设在冷却器73的两侧部73S的底侧的一对端板735A、735B。此外，端板735A、735B包括加热器支撑部736A、736B，加热器支撑部736A、736B位于冷却器73的所述投影区域734前方侧，用于支撑玻璃管加热器733。
加热器支撑部736A、735B的形态没有任何特别限定，只要能够支撑玻璃管加热器733即可。作为加热器支撑部736A、735B的一个示例，其可以是如图3所示的向前凹陷设置的凹状部位等。玻璃管加热器733的两端嵌入到凹陷设置在端板735A、735B上的加热器支撑部736A、736B处。这样，本实施例的玻璃管加热器733就配设(支撑)在了冷却器73的投影区域734(正下方区域)前方侧。
由于玻璃管加热器733位于冷却器73的投影区域734前方侧，因此不会降低来自玻璃管加热器733的加温效率。进一步地，不用大幅变更冷冻室5内的冷却器73的配设结构等即可将玻璃管加热器733配置在期望的位置，生产成本低。
此外，如图1和图2所示，本实施例的冰箱1还包括用于分隔冷冻室5与玻璃管加热器733的隔热部件76。虽然不是特别限定，但是本实施例的隔热部件76是板状部件，例如从间隔体71的底端向底侧延伸的板状部件。
根据本实施例，即使玻璃管加热器733位于冷却器73的投影区域734前方侧，也能对从玻璃管加热器733向冷冻室5侧传递的热量进行隔热。这样能够有效地防止因玻璃管加热器733而使冷冻室5中的冷冻效率降低的情况。
进一步地，隔热部件76的与玻璃管加热器733相对的面761(例如，图1中的向后方侧的面)优选为反射来自玻璃管加热器733的热光线的热光线反射面。虽然不是特别限定，但是本实施例的相对的面761是由光反射性高的金属薄膜形成的。此外，优选地对相对的面761施加用于提高光反射性的表面处理。
根据包括这样的相对的面761的隔热部件76，能够将从玻璃管加热器733向隔热部件76侧照射的热光线高效率地反射至冷却器73侧。于是可以进一步提高来自玻璃管加热器733的加温效率。
上文详细说明了本发明所提供的实施例。然而，前述说明是为了便于本发明的理解而做的说明，而非为了限定本发明的主旨而记载的内容。本发明可以涵盖在不脱离其主旨的情况下经变更、改良而得到的内容。此外，本发明涵盖其等价物。

Claims (10)

  1. 一种冰箱，包括：
    贮藏室；
    设在所述贮藏室内的冷却器；以及
    配设在所述冷却器底侧的玻璃管加热器；
    其特征在于，所述玻璃加热器管从俯视来看配设在所述冷却器的投影区域以外的区域。
  2. 根据权利要求1所述的冰箱，其特征在于，
    所述冷却器包括配设在所述冷却器的两侧部的底侧的一对端板，
    所述端板包括加热器支撑部，所述加热器支撑部位于所述冷却器的所述投影区域前方侧，用于支撑所述玻璃管加热器。
  3. 根据权利要求2所述的冰箱，其特征在于，
    所述加热器支撑部设置为在所述板端向前凹陷设置的凹状部位；
    所述玻璃管加热器的两端嵌入到所述加热器支撑部处。
  4. 根据权利要求1所述的冰箱，其特征在于，
    所述冰箱还包括用于分隔所述贮藏室与所述玻璃管加热器的隔热部件。
  5. 根据权利要求4所述的冰箱，其特征在于，
    所述隔热部件的与所述玻璃管加热器相对的面是用于反射来自所述玻璃管加热器的热光线的热光线反射面。
  6. 根据权利要求5所述的冰箱，其特征在于，
    所述热光线反射面设置为光反射性高的金属薄膜。
  7. 根据权利要求4所述的冰箱，其特征在于，
    所述冰箱还包括间隔体，所述间隔体位于所述贮藏室后侧、所述冷却器前方，以限定出容纳所述冷却器的冷却室；
    所述隔热部件设置为板状部件并且从所述间隔体的底端向底侧延伸。
  8. 根据权利要求7所述的冰箱，其特征在于，
    所述冰箱包括位于所述贮藏室底部的返回通道，位于所述贮藏室的气体经由所述返回通道流入所述冷却室。
  9. 一种冰箱，包括：
    贮藏室；
    设在所述贮藏室内的冷却器；以及
    配设在所述冷却器底侧的除霜机构；
    其特征在于，所述除霜机构配设在所述冷却器的霜融化而成的水的落下区域之外。
  10. 根据权利要求9所述的冰箱，其特征在于，所述冰箱还包括：
    间隔体，所述间隔体位于所述贮藏室后侧、所述冷却器前方，以限定出容纳所述冷却器的冷却室；
    位于所述贮藏室底部的返回通道，位于所述贮藏室的气体经由所述返回通道流入所述冷却室；
    所述除霜机构位于所述落下区域的前方。
PCT/CN2022/140429 2021-12-21 2022-12-20 冰箱 WO2023116713A1 (zh)

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JPH1026462A (ja) * 1996-07-09 1998-01-27 Hoshizaki Electric Co Ltd 冷却貯蔵庫におけるガラス管ヒータの配設構造
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CN207865809U (zh) * 2018-02-12 2018-09-14 长虹美菱股份有限公司 一种风冷冰箱化霜加热器
CN209399639U (zh) * 2018-12-14 2019-09-17 合肥美的电冰箱有限公司 制冷设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1136162A (zh) * 1995-05-15 1996-11-20 中野冷机株式会社 低温商品陈列柜除霜加热器配置构造
JPH1026462A (ja) * 1996-07-09 1998-01-27 Hoshizaki Electric Co Ltd 冷却貯蔵庫におけるガラス管ヒータの配設構造
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CN209399639U (zh) * 2018-12-14 2019-09-17 合肥美的电冰箱有限公司 制冷设备

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