WO2008119249A1 - Four micro-ondes doté d'une fonction de circulation d'air chaud - Google Patents

Four micro-ondes doté d'une fonction de circulation d'air chaud Download PDF

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Publication number
WO2008119249A1
WO2008119249A1 PCT/CN2008/000589 CN2008000589W WO2008119249A1 WO 2008119249 A1 WO2008119249 A1 WO 2008119249A1 CN 2008000589 W CN2008000589 W CN 2008000589W WO 2008119249 A1 WO2008119249 A1 WO 2008119249A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot air
cavity
microwave oven
rear cover
fan
Prior art date
Application number
PCT/CN2008/000589
Other languages
English (en)
French (fr)
Inventor
Yuanxing Wu
Yongzhong Zhang
Yanhe Li
Original Assignee
Mei De Jituan Ltd.
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 Mei De Jituan Ltd. filed Critical Mei De Jituan Ltd.
Publication of WO2008119249A1 publication Critical patent/WO2008119249A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F24C15/325—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation electrically-heated
    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6473—Aspects related to microwave heating combined with other heating techniques combined with convection heating
    • H05B6/6476—Aspects related to microwave heating combined with other heating techniques combined with convection heating the refrigerating air being used for convection

Definitions

  • the utility model relates to a microwave oven, in particular to a microwave oven with a hot air circulation function.
  • microwave oven with hot air circulation function is sold as shown in Figure 1, including the cavity.
  • a heating tube holder 4 a hot air fan 5, a heating tube 2, a heating tube cover 7, an insulating cotton 8, a heat insulating board 9, a cooling fan 10, a motor holder 11, a motor 12, and a rear cover 13, wherein the above-mentioned heating tube
  • the bracket 4, the hot air fan 5, the heating tube 2, the heating tube cover 7, the heat insulating cotton 8, the heat insulating board 9, the cooling fan 10, the motor bracket 11, the motor 12 and the rear cover 13 are sequentially installed outside the cavity, and the cavity
  • the rear plate of the 1 is provided with a heat conducting hole, and the motor 12 is used to drive the hot air fan 5 and the cooling fan 10 to rotate.
  • the heating pipe 6 starts to heat, and the hot air enters the cavity through the heat conducting hole, and the hot air fan rotates to accelerate the heat.
  • the air enters, and the cold air inside the cavity 1 is sucked by the hot air fan 5, and then heated by the heating pipe to become hot air and then enters the cavity 1, thereby forming a hot air circulation to increase the heating speed of the food.
  • Cooling fan 10 Intakes outside cold air through the suction holes on the rear cover 13 for cooling the heat shield 9.
  • the microwave oven of the above structure is disadvantageous in that the temperature of the cavity rises slowly and the food is heated slowly when the heat pipe is located outside the cavity; in addition, there is a certain loss in the heat transfer process, such as a fan, a heat pipe cover, and a cavity.
  • the rear plate inevitably absorbs heat and thus greatly reduces the heating efficiency of the microwave oven. Summary of the invention
  • the purpose of the utility model is to provide a microwave oven with a hot air circulation function with high heating efficiency and high structure, in order to overcome the disadvantages in the prior art.
  • a microwave oven with a hot air circulation function designed according to the purpose comprising a cavity and a hot air circulation mechanism, wherein the hot air circulation mechanism comprises a heat pipe, a hot air fan, a sealing cover, a cooling fan, a heat insulation board,
  • the rear cover of the cavity is provided with a plurality of air suction openings and a plurality of air outlets 1 ⁇ a plurality of air outlets are located around the plurality of air suction openings.
  • a bevel is arranged around the air inlet of the rear cover of the cavity, and a plurality of air outlets are disposed on the inclined surface. Since the heat pipe is placed in the cavity body, the temperature rises rapidly in the cavity during cooking, and the food is heated quickly. In addition, during the heat transfer process, the loss is small, the heating efficiency is high, and the heat pipe cover is not required to be installed, which greatly simplifies. structure.
  • Figure 1 is an exploded view of a conventional microwave oven with hot air circulation function.
  • Figure 2 is an exploded view of the utility model
  • Figure 3 is a schematic view of the structure of the rear cover of the present invention.
  • the structure diagram of the utility model is shown in Figures 2 and 3, and includes a cavity 1 and a hot air circulation mechanism.
  • the hot air circulation mechanism includes a heat pipe 2, a hot air fan 5, a sealing cover 14, a cooling fan 10, a heat insulation board 15, and a motor. 12.
  • the motor 12 is mounted on the motor mounting bracket 1 1 and the heat pipe 2 is placed in the cavity 1.
  • the above-mentioned cavity rear cover 13 is provided with a plurality of air suction ports 1 31 and a plurality of air outlets 1 32, and a plurality of air outlets 1 32 are located around the plurality of air suction ports 1 31.
  • a bevel is provided around the air inlet 131 on the rear cover of the cavity, and a plurality of air outlets 1 32 are disposed on the inclined surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)

Description

具有热风循环功能的微波炉 技术领域
本实用新型是一种微波炉， 特别是一种具有热风循环功能的微波炉。
背景技术
目前， 巿售的具有热风循环功能的微波炉， 其结构如图 1所示， 包括腔体
I、 发热管支架 4、 热风风扇 5、 发热管 2、 发热管罩 7、 隔热棉 8、 隔热板 9、 冷却风扇 10、 电机支架 11、 电机 12及后盖板 13, 其中上述发热管支架 4、 热 风风扇 5、 发热管 2、 发热管罩 7、 隔热棉 8、 隔热板 9、 冷却风扇 10、 电机支 架 11、电机 12及后盖板 13依次安装在腔体外部，腔体 1的后板上设有导热孔， 电机 12用于带动热风风扇 5及冷却风扇 10转动， 微波炉工作时， 发热管 6开 始加热， 热空气通过导热孔进入腔体内， 由于热风风扇转动， 加快热空气的进 入，同时腔体 1内部的冷空气被热风风扇 5吸出后再经发热管加热变成热空气 再进入腔体 1 中， 如此形成热风循环， 来提高食物的加热速度。 冷却风扇 10 通过后盖板 13 上的吸风孔吸入外部的冷空气， 用于冷却隔热板 9、 电机支架
I I、 电机 12和后盖板 13。 上述结构的微波炉缺陷在于 由于发热管位于腔体 外部， 工作时腔体内温度上升慢， 加热食物也较慢； 另外， 热量传递过程中， 存在一定的损耗，例如风扇、发热管罩以及腔体的后板不可避免都要吸收热量 因此大大降低了微波炉加热效率。 发明内容
本实用新型的目的在于考虑上述问题而提供一种加热快 效率高， 结构简 单的具有热风循环功能的微波炉， 以克服现有技术中的不足之此
按此目的设计的一种具有热风循环功能的微波炉，包括腔体及热风循环机 构， 其中热风循环机构包括发热管、 热风风扇、 密封罩、 冷却风扇、 隔热板、
确认本 电机组件及后盖板， 其中热风风扇、 密封罩、 冷却风扇、 隔热板、 电机组件及 后盖板依次安装在腔体后部， 其特征在于上述发热管置于腔体内。
上述腔体后盖板上设有若干个吸风口和若干个出风1^ 若干个出风口位于 若干个吸风口的周边。
上述腔体后盖板上吸风口的周边设有斜面， 若干个出风口设置在斜面上。 本实用新型由于发热管置于腔体内， 因此， 烹饪时腔体内温度上升快， 食 物加热快， 另外， 热量传递过程中， 损耗小， 加热效率高， 而且不需要安装发 热管罩， 大大简化了结构。 附图说明
图 1为现有的具有热风循环功能的微波炉的分解结构示意 S
图 2为本实用新型的分解结构示意 S
图 3为本实用新型的后盖板的结构示意 a
具体实施方式
实施例：
本实用新型的结构示意图如图 2、 3所示， 包括腔体 1及热风循环机构， 热风循环机构包括发热管 2、热风风扇 5、 密封罩 14、冷却风扇 1 0、隔热板 15、 电机 12、 电机安装支架 1 1及后盖板 1 3， 其中热风风扇 5、 密封罩 14、 冷却风 扇 1 0、 隔热板 15、 电机安装支架 1 1及后盖板 1 3依次安装在腔体后部， 电机 12安装在电机安装支架 1 1上， 发热管 2置于腔体 1内。
为提高散热效果， 上述腔体后盖板 1 3上设有若干个吸风口 1 31和若干个 出风口 1 32， 若干个出风口 1 32位于若干个吸风口 1 31的周边。
上述腔体后盖板上的吸风口 131周边设有斜面， 若干个出风口 1 32设置在 斜面上。

Claims

杈 利 要 求 书
1、 一种具有热风循环功能的微波炉， 包括腔体（1 )及热风循环机构， 其 中热风循环机构包括发热管 (2)、热风风扇（5)、密封罩（14)、冷却风扇（10)、 隔热板（15) 、 电机组件及后盖板（13) ， 其中热风风扇（5)、 密封罩（14) 、 冷却风扇（10)、 隔热板（15)、 电机组件及后盖板（13)依次安装在腔体后部， 其特征在于上述发热管（2)置于腔体（1 ) 内。
2、 根据权利要求 1所述的具有热风循环功能的微波炉， 其特征在于上述 腔体后盖板（13)上设有若干个吸风口（131)和若干个出风口 （132) ， 若干 个出风口 （132)位于若干个吸风口 （131) 的周边。
3、 根据权利要求 2所述的具有热风循环功能的微波炉， 其特征在于上述 腔体后盖板上吸风口 （131)的周边设有斜面， 若干个出风口 （132)设置在斜 面上。
PCT/CN2008/000589 2007-03-29 2008-03-26 Four micro-ondes doté d'une fonction de circulation d'air chaud WO2008119249A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007201239513U CN201028645Y (zh) 2007-03-29 2007-03-29 具有热风循环功能的微波炉
CN200720123951.3 2007-03-29

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329702B (zh) * 2014-11-24 2016-08-31 广东美的厨房电器制造有限公司 热风微波炉
CN105662171A (zh) * 2016-03-30 2016-06-15 广东美的厨房电器制造有限公司 烹饪器具
CN205747031U (zh) * 2016-06-30 2016-11-30 广东美的厨房电器制造有限公司 热风组件及微波炉
CN106264187A (zh) * 2016-09-30 2017-01-04 广东美的厨房电器制造有限公司 烹饪电器
CN106214011A (zh) * 2016-09-30 2016-12-14 广东美的厨房电器制造有限公司 烹饪电器
CN108236353A (zh) * 2016-12-23 2018-07-03 宁波方太厨具有限公司 一种带蒸功能的烹饪设备的蒸汽入口结构
CN107550309B (zh) * 2017-08-31 2019-11-05 广东美的厨房电器制造有限公司 烹饪电器

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPH05231646A (ja) * 1992-02-24 1993-09-07 Matsushita Electric Ind Co Ltd ヒーター付き高周波加熱装置
CN1151496A (zh) * 1995-10-09 1997-06-11 三星电子株式会社 对流微波炉的保护盖
CN1160155A (zh) * 1995-06-09 1997-09-24 三星电子株式会社 对流式微波炉
US5798505A (en) * 1995-10-07 1998-08-25 Samsung Electronics Co., Ltd. Microwave oven with upwardly directed air discharge duct
JP2002147763A (ja) * 2000-11-09 2002-05-22 Sanyo Electric Co Ltd 調理器
JP2003202113A (ja) * 2002-01-07 2003-07-18 Matsushita Electric Ind Co Ltd 熱風循環式加熱装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231646A (ja) * 1992-02-24 1993-09-07 Matsushita Electric Ind Co Ltd ヒーター付き高周波加熱装置
CN1160155A (zh) * 1995-06-09 1997-09-24 三星电子株式会社 对流式微波炉
US5798505A (en) * 1995-10-07 1998-08-25 Samsung Electronics Co., Ltd. Microwave oven with upwardly directed air discharge duct
CN1151496A (zh) * 1995-10-09 1997-06-11 三星电子株式会社 对流微波炉的保护盖
JP2002147763A (ja) * 2000-11-09 2002-05-22 Sanyo Electric Co Ltd 調理器
JP2003202113A (ja) * 2002-01-07 2003-07-18 Matsushita Electric Ind Co Ltd 熱風循環式加熱装置

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