WO2020037855A1 - 制冷设备用的板状发热体 - Google Patents

制冷设备用的板状发热体 Download PDF

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Publication number
WO2020037855A1
WO2020037855A1 PCT/CN2018/117094 CN2018117094W WO2020037855A1 WO 2020037855 A1 WO2020037855 A1 WO 2020037855A1 CN 2018117094 W CN2018117094 W CN 2018117094W WO 2020037855 A1 WO2020037855 A1 WO 2020037855A1
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WO
WIPO (PCT)
Prior art keywords
layer
plate
heating element
water receiving
heating
Prior art date
Application number
PCT/CN2018/117094
Other languages
English (en)
French (fr)
Inventor
赵玉环
刘文锋
Original Assignee
赵玉环
刘文锋
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.)
Filing date
Publication date
Application filed by 赵玉环, 刘文锋 filed Critical 赵玉环
Publication of WO2020037855A1 publication Critical patent/WO2020037855A1/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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible

Definitions

  • the invention relates to a plate-shaped heating element used in a refrigerator, an air conditioner and a heat pump unit.
  • the evaporator For existing refrigerators, air conditioners, heat pump units and other refrigeration equipment, the evaporator requires auxiliary electric heating for defrosting.
  • the existing defrosting technologies are metal heating tubes, which have low heating efficiency, large electric power, poor defrosting effect, and low energy efficiency ratio.
  • the evaporator is equipped with another water receiving pan to receive the water flowing down from the evaporator.
  • an object of the present invention is to provide a plate-shaped heating element for a refrigerating device which has a high energy efficiency ratio and can be used as a water receiving tray.
  • a plate-shaped heating element for a refrigeration device includes a heating element main body.
  • the heating element main body includes an electric heating layer and an insulating layer.
  • the insulating layer covers the electric heating layer.
  • the conductive terminals of the electric heating layer protrude from the insulating layer.
  • the bottom end is provided with a water receiving pan, and the water receiving pan is provided with a drainage port.
  • the water receiving tray is formed by bending the heating element body.
  • It also includes a heat insulation layer, which is provided on the outer surface of the insulation layer.
  • the electric heating layer material is graphene carbon fiber composite material or graphene conductive ink composite material or carbon fiber composite material or metal and fiber composite material or graphene.
  • the structure design of the invention is simple and reasonable.
  • the design is a plate-shaped heating element.
  • the heating element can be arranged around the evaporator, and the heating element can also be arranged inside the evaporator.
  • the heating area is significantly increased, and the energy efficiency ratio is significantly increased.
  • Reduce parts the water receiving tray itself also has a heating function to prevent water from freezing in the water receiving tray.
  • FIG. 1 is a perspective view of Embodiment 1.
  • FIG. 1 is a perspective view of Embodiment 1.
  • FIG. 2 is an exploded view of FIG. 1.
  • FIG. 3 is a perspective view of Embodiment 2.
  • FIG. 3 is a perspective view of Embodiment 2.
  • a plate-shaped heating element for a refrigeration device includes a heating element main body 1, and the heating element main body 1 includes an electric heating layer 2, an insulation layer 3, and a heat insulation layer 4.
  • the material of the heating layer is graphene carbon fiber composite material or graphene conductive ink composite material or carbon fiber composite material or metal and fiber composite material or graphene.
  • the insulating layer wraps the electric heating layer, and the conductive terminals of the electric heating layer protrude from the insulating layer, and a connection terminal 5 is formed on the edge of the insulating layer.
  • an insulation layer 4 may be added to the insulation layer outside the heating element body. If the heating element projects into the evaporator, the heat insulation layer may not be provided.
  • the bottom end of the heating element body 1 is bent at 90 degrees to one side to form a water receiving pan 6, and the water receiving pan 6 is provided with a drain opening 7.
  • Embodiment 2 in conjunction with FIG. 3, Embodiment 2 differs from Embodiment 1 only in the shape of the water receiving tray.
  • the water receiving tray can also be connected to the heating element body in a split manner.

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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)
  • Resistance Heating (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

一种用于冰箱、空调、热泵机组中的板状发热体（1），包括发热体本体（1），发热体本体（1）包括电发热层（2）、绝缘层（3），绝缘层（3）包裹电发热层（2），电发热层（2）的导电端子（5）伸出绝缘层（3），该发热体本体（1）底端设有接水盘（6），接水盘（6）设有排水口（7）。板状发热体可以设在蒸发器周围，也可设在蒸发器体内，加热面积明显提高，能效比显著上升。板状发热体自带接水盘（6），减少零配件。接水盘（6）本身也有发热功能，防止水在接水盘（6）中结冰。

Description

制冷设备用的板状发热体 技术领域
本发明涉及一种用于冰箱、空调、热泵机组中的板状发热体。
背景技术
现有冰箱、空调、热泵机组等制冷设备，其蒸发器需要辅助电加热除霜，现有除霜技术都是金属发热管，其发热效率低，电功率大，除霜效果差，能效比低。还有蒸发器都是另设一接水盘接收蒸发器流下来的水。
发明内容
因此，本发明的目的在于提供一种能效比高、可当接水盘使用的制冷设备用的板状发热体。
本发明的目的是这样实现的。
一种制冷设备用的板状发热体，包括发热体本体，发热体本体包括电发热层、绝缘层，绝缘层包裹电发热层，电发热层的导电端子伸出绝缘层，所述发热体本体底端设有接水盘，接水盘设有排水口。
上述技术方案还可作下述进一步完善。
所述接水盘由发热体本体弯折形成。
还包括隔热层，隔热层设在绝缘层外表面。
所述电发热层材料为石墨烯碳纤维复合材料或石墨烯导电油墨复合材料或碳纤维复合材料或金属与纤维复合材料或石墨烯。
本发明结构设计简单合理，设计呈板状发热体，可以把发热体设在蒸发器周围，也可把发热体设在蒸发器体内，加热面积明显提高，能效比显著上升，自带接水盘，减小零配件，接水盘本身也有发热功能，防止水在接水盘中结冰。
附图说明
图1为实施例1立体图。
图2为图1分解图。
图3为实施例2立体图。
具体实施方式
下面结合附图和实施例对本发明作进一步说详述。
实施例1，结合图1和图2，一种制冷设备用的板状发热体，包括发热体本体1，发 热体本体1包括电发热层2、绝缘层3和隔热层4，所述电发热层材料为石墨烯碳纤维复合材料或石墨烯导电油墨复合材料或碳纤维复合材料或金属与纤维复合材料或石墨烯。
绝缘层包裹电发热层，电发热层导电端子伸出绝缘层，并在绝缘层边缘形成接线端子5。
如果发热体本体是设在蒸发器周围的，则发热体本体外侧的绝缘层可增设隔热层4，如果发热体伸入蒸发器内部，可以不设隔热层。
所述发热体本体1底端向一侧弯折90度形成接水盘6，接水盘6设排水口7。
实施例2，结合图3，实施例2与实施例1区别仅在于接水盘的形状不同。
通过上述两个实施例可知，接水盘还可以通过分体的方式与发热体本体连接。

Claims (4)

  1. 一种制冷设备用的板状发热体，包括发热体本体，发热体本体包括电发热层、绝缘层，绝缘层包裹电发热层，电发热层的导电端子伸出绝缘层，其特征在于：所述发热体本体底端设有接水盘，接水盘设有排水口。
  2. 根据权利要求1所述制冷设备用的板状发热体，其特征在于：所述接水盘由发热体本体弯折形成。
  3. 根据权利要求1或2所述制冷设备用的板状发热体，其特征在于：还包括隔热层，隔热层设在绝缘层外表面。
  4. 根据权利要求3所述制冷设备用的板状发热体，其特征在于：所述电发热层材料为石墨烯碳纤维复合材料或石墨烯导电油墨复合材料或碳纤维复合材料或金属与纤维复合材料或石墨烯。
PCT/CN2018/117094 2018-08-23 2018-11-23 制冷设备用的板状发热体 WO2020037855A1 (zh)

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CN108800728A (zh) * 2018-08-23 2018-11-13 赵玉环 制冷设备用的板状发热体

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786227A (en) * 1972-11-15 1974-01-15 Thermo King Corp Heat exchanger defrost apparatus
CN104344643A (zh) * 2013-07-30 2015-02-11 海尔集团公司 一种具有化霜结构的冰箱以及化霜方法
CN206399056U (zh) * 2017-01-11 2017-08-11 合肥伽帝芙环境设备科技有限公司 一种用于接水盘的热化霜盘管结构
CN206890960U (zh) * 2017-05-11 2018-01-16 合肥美的电冰箱有限公司 一种单系统对开门冰箱
CN108800728A (zh) * 2018-08-23 2018-11-13 赵玉环 制冷设备用的板状发热体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786227A (en) * 1972-11-15 1974-01-15 Thermo King Corp Heat exchanger defrost apparatus
CN104344643A (zh) * 2013-07-30 2015-02-11 海尔集团公司 一种具有化霜结构的冰箱以及化霜方法
CN206399056U (zh) * 2017-01-11 2017-08-11 合肥伽帝芙环境设备科技有限公司 一种用于接水盘的热化霜盘管结构
CN206890960U (zh) * 2017-05-11 2018-01-16 合肥美的电冰箱有限公司 一种单系统对开门冰箱
CN108800728A (zh) * 2018-08-23 2018-11-13 赵玉环 制冷设备用的板状发热体

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