WO2017041367A1 - 一种具有冷藏保鲜功能的烤箱 - Google Patents

一种具有冷藏保鲜功能的烤箱 Download PDF

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Publication number
WO2017041367A1
WO2017041367A1 PCT/CN2015/096153 CN2015096153W WO2017041367A1 WO 2017041367 A1 WO2017041367 A1 WO 2017041367A1 CN 2015096153 W CN2015096153 W CN 2015096153W WO 2017041367 A1 WO2017041367 A1 WO 2017041367A1
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WIPO (PCT)
Prior art keywords
oven
fan
refrigerating
air
fan cover
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PCT/CN2015/096153
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English (en)
French (fr)
Inventor
刘华有
谢月明
武培阳
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东莞市金河田实业有限公司
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Application filed by 东莞市金河田实业有限公司 filed Critical 东莞市金河田实业有限公司
Publication of WO2017041367A1 publication Critical patent/WO2017041367A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • 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
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove

Definitions

  • the invention relates to the technical field of household appliances, in particular to an oven having a refrigerating and fresh-keeping function.
  • the oven In daily life, the oven is an appliance that is commonly used to bake food. Currently, ovens with reservation functions on the market do not take into account how the food is refrigerated. In the season of high temperature, the food is placed in the oven without refrigerating and preserving function. If the appointment time is more than four hours, it will lead to food spoilage and odor. Eating spoiled food will directly affect human health.
  • the present invention provides an oven with a refrigerating and fresh-keeping function for the problem of the prior art, which can keep the food placed in the oven for a long time at a low temperature and prevent the food from spoiling.
  • An oven having a refrigerating and fresh-keeping function comprising a casing having a baking inner tank, an oven door, a heating element and a control panel, the oven door being hinged to a front end of the casing, the heating element being electrically connected to the control panel, It includes a circulating refrigeration unit that cools the baking liner.
  • the circulating refrigeration unit includes a semiconductor refrigeration unit, an inner circulation fan, and a fan cover.
  • the semiconductor refrigeration unit and the inner circulation fan are respectively disposed above and below the fan cover, and the fan cover is sealed and fixed to the baking liner.
  • the outside of the baking inner tank is provided with an air inlet and an air outlet corresponding to one side of the inner circulation fan and the semiconductor refrigeration component, and the gas in the baking inner tank enters the semiconductor refrigeration component through the air inlet to be cooled.
  • the circulating fan blows the cooled gas from the air outlet into the baking inner tank.
  • the semiconductor refrigeration component includes an air deflector and has a heat effect surface and a cold effect a semiconductor refrigerating sheet, the air deflector and the semiconductor refrigerating sheet are respectively disposed at one side of the fan cover; the upper end of the fan cover is provided with a mounting cavity for fixing the semiconductor refrigerating sheet, and the semiconductor refrigerating sheet
  • a cold end fixing piece is disposed on one side of the cold effect surface, and the cold end fixing piece includes a cold end contact portion and a cold end fixing portion, and both sides of the cold end contact portion are detachably connected to the fan cover body, and the cold end contact The middle portion of the portion abuts against the cold effect surface of the semiconductor refrigeration sheet, and the cold end fixing portion is fixedly connected with the air deflector to form an air cooling chamber between the cold end contact portion and the air deflector.
  • the side of the thermal effect surface of the semiconductor refrigerating sheet is provided with a hot end fixing piece, and the hot end fixing piece includes a hot end contact portion and a hot end fixing portion, and the hot end fixing portion and the fixed housing may be Disassembling the connection, the hot end contact portion abuts the thermal effect surface of the semiconductor refrigerating sheet, and fixes the semiconductor refrigerating sheet in the mounting cavity; at the upper end of the hot end fixing piece, a heat sink is disposed, the heat sink includes heat conduction And a heat dissipation portion of the grid, the two sides of the heat conducting portion are detachably connected to the fan cover, and the heat dissipation portion of the grid is fixed to one side of the heat conducting portion.
  • the thermal end fixing portion and the fan cover body are provided with an insulating support block
  • the heat insulating support block is provided with at least two threaded through holes
  • the hot end fixing portion uses a screw to pass through the threaded through hole
  • the screw cover is screwed to the fan cover, and the heat insulating support block is sandwiched between the hot end fixing portion and the fan cover.
  • the air guiding plate is provided with an introduction air hole and an outlet air hole
  • the air cooling chamber is provided with a partition plate
  • the partition plate includes a fixing portion and a wind guiding portion
  • the air guiding portion is located at the introduction wind Between the hole and the outlet vent, the fixing portion is sandwiched between the wind deflector and the fan cover.
  • the inner circulation fan includes a fan blade and a fan motor, the fan blade is located in a cavity of the fan cover body, the fan motor is fixed on an outer side of the fan cover body, and the rotating shaft of the fan motor passes through the fan cover body and the fan blade connection.
  • a rotating component is disposed between the semiconductor refrigeration component and the inner circulation fan, and the rotation
  • the assembly comprises a motor, a fixing bracket, a connecting shaft and a tilting shaft, wherein the motor is fixed on the fan cover by a fixing bracket, one end of the connecting shaft is connected to the motor through the fan cover body, and the other end passes through the baking inner tank and Flip the shaft connection.
  • the outer surface of the baking inner tank is provided with a U-shaped outer casing covering the left side wall, the right side wall and the upper side wall, and the U-shaped outer casing forms a heat dissipation passage with the baking inner tank, the circulation
  • the refrigeration unit is fixedly mounted in the heat dissipation channel of the right side wall.
  • At least one heat dissipation fan is installed in the heat dissipation channel, and a plurality of ventilation holes are arranged on the U-shaped outer casing.
  • the invention provides an oven with a refrigerating and fresh-keeping function, comprising a box body having a baking inner tank, an oven door, a heating element and a control panel, the oven door being hinged to the front end of the box body, the heating element and the control
  • the panel is electrically connected and further includes a circulating refrigeration assembly for cooling the baking liner.
  • the invention not only has the baking function, but also has the refrigeration function through the built-in circulating refrigeration component; when the circulating refrigeration component works, the air in the fan cover body is cooled by the semiconductor refrigeration component, and then the cold air is blown into the oven by the inner circulation fan. In the roasted inner tank, the air in the baking inner tank is cooled, thereby realizing the functional effect of refrigerating and preserving, and the food placed in the oven for a long time is kept at a low temperature to prevent the food from spoiling.
  • Fig. 1 is a schematic view showing the overall structure of an oven having a refrigerating and fresh-keeping function.
  • Fig. 2 is a partial structural exploded view of an oven having a refrigerating and fresh-keeping function.
  • Fig. 3 is a schematic view showing the structure of an oven having a refrigerating and fresh-keeping function when the oven door is hidden.
  • FIG. 4 is a schematic structural view 1 of the circulating refrigeration assembly of the present invention.
  • Figure 5 is a schematic structural view 2 of the circulating refrigeration assembly of the present invention.
  • Figure 6 is an exploded view of the structure of Figure 5.
  • the invention provides an oven with a refrigerating and fresh-keeping function, comprising a box body 1 having a baking inner tank 11, an oven door 2, a heating element 3 and a control panel 4.
  • the control panel 4 has three Rotary switches for setting the baking mode or cooling mode, baking time or cooling time, baking temperature or cooling temperature.
  • the oven door 2 is hinged to the front end of the casing 1, and the heating element 3 is electrically connected to the control panel 4.
  • the heating elements are distributed on the left, right, top, bottom and rear sides of the baking liner 11.
  • the food in the baking tank 11 is directly radiated and convectively heated by the heating element 3 to realize the baking function of the oven.
  • the oven provided by the present invention further includes a circulation refrigeration assembly 5 for cooling the baking inner tank 11, the circulating refrigeration assembly 5 including a semiconductor refrigeration assembly 6, an inner circulation fan 7, and a fan cover 8, the semiconductor refrigeration assembly 6.
  • the inner circulation fan 7 is vertically disposed on the fan cover 8, respectively, and the fan cover 8 is sealingly fixed to the outer side of the baking inner chamber 11; the baking inner chamber 11 corresponds to the inner circulation fan 7 and the semiconductor
  • One side of the refrigeration unit 6 is provided with an air inlet 12 and an air outlet 13, and the gas in the baking tank 11 enters the semiconductor refrigeration unit 6 through the air inlet 12 for cooling, and the internal circulation fan 7 passes the cooled gas from the air outlet 13 Blow into the baking liner 11.
  • the invention not only has a baking function, but also has a cooling function through the built-in circulating refrigeration unit 5; when the circulating refrigeration unit 5 is in operation, the air in the fan cover 8 is cooled by the semiconductor refrigeration unit 6, and then the inner circulation fan 7 is used. The cooled gas is blown into the baking liner 11 to cool the air in the baking tank 11, thereby achieving the functional effect of refrigerating and preserving, and the food placed in the oven for a long time is kept at a low temperature to prevent food from deteriorating.
  • the cooling function and the baking function are independently controlled. When the cooling function is turned on, the baking function is off; when the baking function is turned on, the cooling function is off. status.
  • the semiconductor refrigeration unit 6 includes an air deflector 61 and a semiconductor refrigerating sheet 62 having a thermal effect surface and a cold effect surface, and the air deflector 61 and the semiconductor refrigerating sheet 62 are respectively disposed on one side of the fan cover 8.
  • the upper end of the fan cover 8 is provided with a mounting cavity for fixing the semiconductor refrigerating sheet 62
  • the cold effect surface of the semiconductor refrigerating sheet 62 is provided with a cold end fixing piece 63
  • the cold end fixing piece 63 includes There are a cold end contact portion 631 and a cold end fixing portion 632.
  • Both sides of the cold end contact portion 631 are detachably connected to the fan cover 8, and a middle portion of the cold end contact portion 631 abuts the cold effect surface of the semiconductor refrigerant sheet 62.
  • the cold end fixing portion 632 is fixedly connected to the air guiding plate 61 to form an air cooling chamber between the cold end contact portion 631 and the air guiding plate 61.
  • a side of the thermal effect surface of the semiconductor refrigerating sheet 62 is provided with a hot end fixing piece 64, and the hot end fixing piece 64 includes a hot end contact portion 641 and a hot end fixing portion 642, and the hot end fixing portion
  • the 642 is detachably connected to the fixed housing, the hot end contact portion 641 abuts the thermal effect surface of the semiconductor refrigerating sheet 62, and fixes the semiconductor refrigerating sheet 62 in the mounting cavity; and the upper end of the hot end fixing piece 64 is disposed at the upper end
  • the heat sink 65 includes a heat conducting portion 651 and a grid heat radiating portion 652. Both sides of the heat conducting portion 651 are detachably connected to the fan cover 8 , and the grid heat radiating portion 652 is fixed to the heat conducting portion 651 . side.
  • the semiconductor refrigeration unit 6 When the semiconductor refrigeration unit 6 is energized, its thermal effect surface is continuously exothermic, and the cold effect surface continuously absorbs heat, so that the temperature of the cold end fixing piece 63 is continuously lowered, and then enters the air cooling chamber through the cold end fixing piece 4.
  • the air achieves cooling and cooling.
  • a certain temperature difference is reached between the thermal effect surface and the cold effect surface, when the amounts of the two heat transfer are equal, an equilibrium point is reached, and the reverse heat transfer cancels each other. At this time, the temperature of the cold effect surface will not continue to change.
  • the temperature of the hot end fixing piece 64 is lowered by the fins 65.
  • the cooling efficiency of the cold effect surface of the piece 6 depends mainly on the heat dissipation efficiency of the heat effect surface; the heat sink 65 effectively accelerates the heat conduction speed of the heat effect surface, and the better the heat dissipation effect of the heat effect surface, the better the cooling effect of the cold effect surface.
  • an insulating support block (not shown) is disposed between the hot end fixing portion 642 and the fan cover 8, and the insulating support block is provided with at least two threaded through holes.
  • the hot end fixing portion 642 is screwed to the fan cover 8 through a screw through hole, and the heat insulating support block is sandwiched between the hot end fixing portion 642 and the fan cover 8.
  • the heat insulating support block isolates the heat transfer between the hot end fixing piece 64 and the fan cover 8 to prevent the temperature of the fan cover 8 from rising, thereby indirectly affecting the cooling effect.
  • the air deflector 61 is provided with a plurality of introduction air holes 611 and a lead air outlet 612.
  • the air cooling chamber is provided with a partition 66, and the partition plate 66 includes a fixing portion 661 and a guide.
  • the air guiding portion 662 is located between the introduction air hole 611 and the lead air hole 612, and the fixing portion 661 is interposed between the air guiding plate 61 and the fan cover 8.
  • the gas in the baking chamber 11 enters the air cooling chamber from the introduction vent 611, is cooled by the cold end fixing piece 63, and enters the fan cover 8 from the outlet vent 612.
  • the air guiding portion 662 ensures that gas is sent from the air inlet 12 to the air outlet 13, preventing the gas from flowing irregularly.
  • the wind deflector 61 is attached with a heat insulating cotton (not shown) on the surface of the cold end contact portion 631. The heat insulating cotton can prevent other heat from being conducted from the air deflector 61 into the air cooling chamber, thereby effectively ensuring the cooling effect of the air cooling chamber.
  • the inner circulation fan 7 includes a fan blade 71 and a fan motor 72, the fan blade 71 is located in the inner cavity of the fan cover 8, and the fan motor 72 is fixed to the outer side of the fan cover 8, the fan motor The rotating shaft of 72 is connected to the fan blade 71 through the fan cover 8.
  • the fan motor 72 is energized to drive the fan blade 71 to rotate, a circulating airflow is generated between the baking inner tank 11 and the fan cover 8.
  • a rotating assembly 9 is disposed between the semiconductor refrigeration unit 6 and the inner circulation fan 7, and the rotating assembly 9 includes a motor 91, a fixing bracket 92, a connecting shaft 93, and a tilting shaft 94, and the motor 91 passes
  • the fixing bracket 92 is fixed on the fan cover 8, and the baking inner tank 11, the air guiding plate 61, the fan cover 8 and the fixing bracket 92 are oppositely provided with a shaft hole through which the connecting shaft 93 passes, and the connecting shaft One end of the 93 is connected to the motor through the fan cover 8, and the other end is connected to the flip shaft 94 through the baking inner chamber 11.
  • the rotating assembly 9 is fixedly mounted on the fan cover 8 and has a simple structure and is easy to install.
  • the oven can automatically flip the grilling net fixed on the oven shaft through the flip shaft 94 without opening the oven door 2, so that the front and back sides of the food on the grilling net are uniformly baked, thereby avoiding heat loss and temperature drop in the baking tank 11.
  • the baking efficiency of the oven is ensured, so that the user does not burn the food due to the flipping of the food, thereby ensuring the safety of the user's product.
  • the outer surface of the baking inner tank 11 is provided with a U-shaped outer casing 10 covering the left side wall, the right side wall and the upper side wall, between the U-shaped outer casing 10 and the baking inner tank 11.
  • the heat dissipation channels are formed, and the circulating refrigeration components 5 are respectively fixedly mounted in the heat dissipation channels of the right side wall.
  • at least one heat dissipation fan 101 is installed in the heat dissipation channel, and a plurality of ventilation holes 102 are disposed on the U-shaped outer casing 10.
  • the cooling fan 101 When the oven is in the baking mode, the temperature of the U-shaped outer casing 10 reaches the set temperature, the cooling fan 101 is automatically activated, and convection is formed in the heat dissipation passage, and the outside low-temperature air enters from the ventilation hole 102, and then blows out from the cooling fan 101. The heat is taken out from the outside to reduce the temperature of the surface of the U-shaped outer casing 10.
  • the circulating refrigeration unit 5 operates in synchronization with the cooling fan 101. After the cooling fan 101 is activated, convection is formed in the heat dissipation passage to accelerate the gas flow speed on the surface of the heat sink 65, and the heat of the hot end fixing piece 64 is fixed. The outside is quickly dissipated, thereby lowering the temperature of the surface of the semiconductor refrigerating sheet 62.

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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)
  • Food Science & Technology (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
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Abstract

一种具有冷藏保鲜功能的烤箱，包括具有烘烤内胆（11）的箱体（1）、烤箱门（2）、发热元件（3）和控制面板（4）；烤箱门（2）铰接于箱体（1）的前端，发热元件（3）与控制面板（4）电连接，还包括有对烘烤内胆（11）进行制冷的循环制冷组件（5）。该烤箱不仅具有烘烤功能，通过内设循环制冷组件还具备制冷功能；当循环制冷组件工作时，通过半导体制冷组件（6）对风扇罩体（8）内的空气制冷，再由内循环风扇（7）将冷气体吹入烘烤内胆中，对烘烤内胆内的空气降温，从而实现冷藏保鲜功能，可对烤箱内长时间放置的食物进行低温保鲜，避免食物变质。

Description

一种具有冷藏保鲜功能的烤箱 技术领域
本发明涉及家用电器技术领域，尤其是指一种具有冷藏保鲜功能的烤箱。
背景技术
在日常生活中，烤箱是一种常用来烘烤食物的电器，目前市场上带有预约功能的烤箱都没有考虑到对食物如何冷藏保鲜。在气温较高的季节，将食物放置在没有冷藏保鲜功能的烤箱内，若预约设置时间超过四个小时，就会导至食物变质产生异味，食用变质食物将会直接影响人体健康。
发明内容
本发明针对现有技术的问题提供一种具有冷藏保鲜功能的烤箱，可对烤箱内长时间放置的食物进行低温保鲜，避免食物变质。
为了解决上述技术问题，本发明采用如下技术方案：
一种具有冷藏保鲜功能的烤箱，包括具有烘烤内胆的箱体、烤箱门、发热元件和控制面板，所述烤箱门铰接于箱体的前端，所述发热元件与控制面板电连接，还包括有对烘烤内胆进行制冷的循环制冷组件。
其中，所述循环制冷组件包括半导体制冷组件、内循环风扇和风扇罩体，所述半导体制冷组件、内循环风扇分别上下设置于风扇罩体上，所述风扇罩体密封固定于烘烤内胆的外侧；所述烘烤内胆对应所述的内循环风扇和半导体制冷组件的一侧设置有进风口和出风口，烘烤内胆内的气体通过进风口进入半导体制冷组件内进行制冷，内循环风扇将制冷后的气体从出风口吹入烘烤内胆内。
进一步的，所述半导体制冷组件包括有导风板以及具有热效应面和冷效应 面的半导体制冷片，所述导风板和半导体制冷片分别设置于风扇罩体的一侧；所述风扇罩体的上端设置有用于固定半导体制冷片的安装凹腔，所述半导体制冷片的冷效应面一侧设置有冷端固定片，所述冷端固定片包括有冷端接触部和冷端固定部，所述冷端接触部的两侧与风扇罩体可拆卸连接，冷端接触部的中部与半导体制冷片的冷效应面抵接，所述冷端固定部与导风板固定连接，使冷端接触部与导风板之间形成一空气冷却腔。
再进一步的，所述半导体制冷片的热效应面一侧设置有热端固定片，所述热端固定片包括有热端接触部和热端固定部，所述热端固定部与固定壳体可拆卸连接，所述热端接触部与半导体制冷片的热效应面抵接，并将半导体制冷片固定于安装凹腔中；在热端固定片的上端设置有散热片，所述散热片包括有导热部和栅格散热部，所述导热部的两侧与风扇罩体可拆卸连接，栅格散热部固定于导热部的一侧。
其中，所述热端固定部与风扇罩体之间设置有隔热支撑块，所述隔热支撑块上设置有至少两个螺纹通孔，所述热端固定部使用螺丝钉穿过螺纹通孔与风扇罩体螺纹连接，将隔热支撑块夹在热端固定部与风扇罩体之间。
其中，所述导风板上设有导入风孔和导出风孔，所述空气冷却腔内设置有隔板，所述隔板包括有固定部和导风部，所述导风部位于导入风孔与导出风孔之间，所述固定部夹在导风板与风扇罩体之间。
其中，所述内循环风扇包括风扇叶和风扇电机，所述风扇叶位于风扇罩体的内腔，风扇电机固定于风扇罩体的外侧，所述风扇电机的转轴穿过风扇罩体与风扇叶连接。
其中，所述半导体制冷组件与内循环风扇之间设置有旋转组件，所述旋转 组件包括电机、固定支架、连接轴和翻转轴，所述电机通过固定支架固定在风扇罩体上，所述连接轴的一端穿过风扇罩体与电机连接，另一端穿过烘烤内胆与翻转轴连接。
其中，所述烘烤内胆的外表面设置有覆盖在左侧壁、右侧壁以及上侧壁的U形外壳，所述U形外壳与烘烤内胆之间形成散热通道，所述循环制冷组件固定安装于右侧壁的散热通道内。
进一步的，所述散热通道内安装有至少一散热风扇，U形外壳上布设有若干通风孔。
本发明的有益效果：
本发明所提供的一种具有冷藏保鲜功能的烤箱，包括具有烘烤内胆的箱体、烤箱门、发热元件和控制面板，所述烤箱门铰接于箱体的前端，所述发热元件与控制面板电连接，还包括有对烘烤内胆进行制冷的循环制冷组件。本发明不但具备烘烤功能，通过内设循环制冷组件还具备了制冷功能；当循环制冷组件工作时，通过半导体制冷组件对风扇罩体内的空气制冷，再由内循环风扇将冷气体吹入烘烤内胆内，对烘烤内胆内的空气降温，从而实现冷藏保鲜的功能效果，可对烤箱内长时间放置的食物进行低温保鲜，避免食物变质。
附图说明
图1为一种具有冷藏保鲜功能的烤箱的整体结构示意图。
图2为一种具有冷藏保鲜功能的烤箱的局部结构分解图。
图3为一种具有冷藏保鲜功能的烤箱在隐去烤箱门时的结构示意图。
图4为本发明中所述循环制冷组件的结构示意图一。
图5为本发明中所述循环制冷组件的结构示意图二。
图6为图5的结构分解图。
在图1至图6中的附图标记包括：
1—箱体                10—U形外壳
101—散热风扇          102—通风孔
11—烘烤内胆           12—进风口
13—出风口             2—烤箱门
3—发热元件            4—控制面板
5—循环制冷组件        6—半导体制冷组件
61—导风板             611—导入风孔
612—导出风孔          62—半导体制冷片
63—冷端固定片         631—冷端接触部
632—冷端固定部        64—热端固定片
641—热端接触部        642—热端固定部
65—散热片             651—导热部
652—栅格散热部        66—隔板
661—固定部            662—导风部
7—内循环风扇          71—风扇叶
72—风扇电机           8—风扇罩体
9—旋转组件            91—电机
92—固定支架           93—连接轴
94—翻转轴。
具体实施方式
为了便于本领域技术人员的理解，下面结合实施例与附图对本发明作进一步的说明，实施方式提及的内容并非对本发明的限定。以下结合附图对本发明进行详细的描述。
本发明所提供的一种具有冷藏保鲜功能的烤箱，包括具有烘烤内胆11的箱体1、烤箱门2、发热元件3和控制面板4，如图1所示，控制面板4上具有三个旋转开关，分别用于设定烘烤模式或者制冷模式、烘烤时间或制冷时间、烘烤温度或制冷温度。所述烤箱门2铰接于箱体1的前端，所述发热元件3与控制面板4电连接，所述发热元件分布设于烘烤内胆11的左侧、右侧、顶部、底部以及后侧，通过发热元件3对烘烤内胆11内的食物进行直接辐射和对流加热，实现烤箱的烘烤功能。本发明所提供的烤箱还包括有对烘烤内胆11进行制冷的循环制冷组件5，所述循环制冷组件5包括半导体制冷组件6、内循环风扇7和风扇罩体8，所述半导体制冷组件6、内循环风扇7分别上下设置于风扇罩体8上，所述风扇罩体8密封固定于烘烤内胆11的外侧；所述烘烤内胆11对应所述的内循环风扇7和半导体制冷组件6的一侧设置有进风口12和出风口13，烘烤内胆11内的气体通过进风口12进入半导体制冷组件6内进行制冷，内循环风扇7将制冷后的气体从出风口13吹入烘烤内胆11内。
本发明不但具备烘烤功能，通过内设循环制冷组件5还具备了制冷功能；当循环制冷组件5工作时，通过半导体制冷组件6对风扇罩体8内的空气制冷，再由内循环风扇7将制冷后的气体吹入烘烤内胆11内，对烘烤内胆11内的空气降温，从而实现冷藏保鲜的功能效果，可对烤箱内长时间放置的食物进行低温保鲜，避免食物变质。其中，所述的制冷功能和烘烤功能均为独立控制，当开启制冷功能时，烘烤功能为关闭状态；当开启烘烤功能时，制冷功能为关闭 状态。
进一步的，所述半导体制冷组件6包括有导风板61以及具有热效应面和冷效应面的半导体制冷片62，所述导风板61和半导体制冷片62分别设置于风扇罩体8的一侧；所述风扇罩体8的上端设置有用于固定半导体制冷片62的安装凹腔，所述半导体制冷片62的冷效应面一侧设置有冷端固定片63，所述冷端固定片63包括有冷端接触部631和冷端固定部632，所述冷端接触部631的两侧与风扇罩体8可拆卸连接，冷端接触部631的中部与半导体制冷片62的冷效应面抵接，所述冷端固定部632与导风板61固定连接，使冷端接触部631与导风板61之间形成一空气冷却腔。再进一步的，所述半导体制冷片62的热效应面一侧设置有热端固定片64，所述热端固定片64包括有热端接触部641和热端固定部642，所述热端固定部642与固定壳体可拆卸连接，所述热端接触部641与半导体制冷片62的热效应面抵接，并将半导体制冷片62固定于安装凹腔中；在热端固定片64的上端设置有散热片65，所述散热片65包括有导热部651和栅格散热部652，所述导热部651的两侧与风扇罩体8可拆卸连接，栅格散热部652固定于导热部651的一侧。
当半导体制冷组件6通电工作时，其热效应面不断地放热，冷效应面不断地吸热，使得冷端固定片63的温度不断降低，进而通过冷端固定片4对进入空气冷却腔内的空气实现降温制冷。当热效应面和冷效应面之间达到一定温差，这两种热传递的量相等时，就会达到一个平衡点，正逆向热传递相互抵消。此时冷效应面的温度就不会继续发生变化。为了达到更低的温度，通过散热片65降低热端固定片64的温度来实现。当热效应面的温度降下来了，那冷效应面的温度也会相应的下降，从而使得冷端固定片63达到更低的温度。半导体制冷组 件6的冷效应面的制冷效率主要取决于热效应面的散热效率；散热片65有效地加快了热效应面的热传导速度，热效应面的散热效果越好，冷效应面的制冷效果就越好。
在本发明中，所述热端固定部642与风扇罩体8之间设置有隔热支撑块(在图中未标出)，所述隔热支撑块上设置有至少两个螺纹通孔，所述热端固定部642使用螺丝钉穿过螺纹通孔与风扇罩体8螺纹连接，将隔热支撑块夹在热端固定部642与风扇罩体8之间。所述隔热支撑块隔绝了热端固定片64与风扇罩体8之间的热传递，防止风扇罩体8的温度升高，进而间接地影响制冷效果。
在本发明中，所述导风板61上设有多个导入风孔611和导出风孔612，所述空气冷却腔内设置有隔板66，所述隔板66包括有固定部661和导风部662，所述导风部662位于导入风孔611与导出风孔612之间，所述固定部661夹在导风板61与风扇罩体8之间。在制冷模式下，烘烤内胆11内的气体从导入风孔611进入空气冷却腔内，经过冷端固定片63的冷却后从导出风孔612进入风扇罩体8内。由于内循环风扇7不断往烘烤内胆11内吹冷风，导风部662保证气体从进风口12往出风口13输送，防止气体流动不规律。另外，所述导风板61朝向冷端接触部631的表面上粘贴有隔热棉(在图中未标出)。所述隔热棉可防止其他的热量从导风板61传导至空气冷却腔内，可有效保证空气冷却腔的制冷效果。
在本发明中，所述内循环风扇7包括风扇叶71和风扇电机72，所述风扇叶71位于风扇罩体8的内腔，风扇电机72固定于风扇罩体8的外侧，所述风扇电机72的转轴穿过风扇罩体8与风扇叶71连接。当风扇电机72通电带动风扇叶71旋转，使得烘烤内胆11与风扇罩体8之间产生循环气流。
在本发明中，所述半导体制冷组件6与内循环风扇7之间设置有旋转组件9，所述旋转组件9包括电机91、固定支架92、连接轴93和翻转轴94，所述电机91通过固定支架92固定在风扇罩体8上，所述烘烤内胆11、导风板61、风扇罩体8和固定支架92均相对设置有供连接轴93穿过的轴孔，所述连接轴93的一端穿过风扇罩体8与电机连接，另一端穿过烘烤内胆11与翻转轴94连接。所述旋转组件9固定安装在风扇罩体8上，结构简单便于安装。本烤箱无需打开烤箱门2即可以通过翻转轴94自动翻转固定于其上的烤网,让烤网上的食物正反面都烘烤均匀,避免了烘烤内胆11内的热量损失和温度降低,保证了烤箱的烘烤效率,让用户不会由于翻转食物所发生烫伤,保证了用户的产品使用安全。
在本发明中，所述烘烤内胆11的外表面设置有覆盖在左侧壁、右侧壁以及上侧壁的U形外壳10，所述U形外壳10与烘烤内胆11之间形成散热通道，所述循环制冷组件5分别固定安装于右侧壁的散热通道内。进一步的，所述散热通道内安装有至少一散热风扇101，U形外壳10上布设有若干通风孔102。当烤箱处于烘烤模式，所述U形外壳10的温度达到设定的温度，自动启动散热风扇101，散热通道内会形成对流，外界低温空气从通风孔102进入，然后从散热风扇101吹出，把热量带出外界散发，从而降低U形外壳10表面的温度。当烤箱处于制冷模式，所述循环制冷组件5与散热风扇101同步工作，启动散热风扇101之后，散热通道内会形成对流，加快散热片65表面的气体流动速度，把热端固定片64的热量迅速带出外界散发，进而降低半导体制冷片62表面的温度。
以上所述，仅是本发明较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明以较佳实施例公开如上，然而并非用以限定本发明，任何熟悉本专业的技术人员，在不脱离本发明技术方案范围内，当利用上述揭示的技术 内容作出些许变更或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案内容，依据本发明技术是指对以上实施例所作的任何简单修改、等同变化与修饰，均属于本发明技术方案的范围内。

Claims (10)

  1. 一种具有冷藏保鲜功能的烤箱，包括具有烘烤内胆的箱体、烤箱门、发热元件和控制面板，所述烤箱门铰接于箱体的前端，所述发热元件与控制面板电连接，其特征在于：还包括有对烘烤内胆进行制冷的循环制冷组件。
  2. 根据权利要求1所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述循环制冷组件包括半导体制冷组件、内循环风扇和风扇罩体，所述半导体制冷组件、内循环风扇分别上下设置于风扇罩体上，所述风扇罩体固定于烘烤内胆的外侧；所述烘烤内胆对应所述的内循环风扇和半导体制冷组件的一侧设置有进风口和出风口，烘烤内胆内的气体通过进风口进入半导体制冷组件内进行制冷，内循环风扇将制冷后的气体从出风口吹入烘烤内胆内。
  3. 根据权利要求2所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述半导体制冷组件包括有导风板以及具有热效应面和冷效应面的半导体制冷片，所述导风板和半导体制冷片分别设置于风扇罩体的一侧；所述风扇罩体的上端设置有用于固定半导体制冷片的安装凹腔，所述半导体制冷片的冷效应面一侧设置有冷端固定片，所述冷端固定片包括有冷端接触部和冷端固定部，所述冷端接触部的两侧与风扇罩体可拆卸连接，冷端接触部的中部与半导体制冷片的冷效应面抵接，所述冷端固定部与导风板固定连接，使冷端接触部与导风板之间形成一空气冷却腔。
  4. 根据权利要求3所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述半导体制冷片的热效应面一侧设置有热端固定片，所述热端固定片包括有热端接触部和热端固定部，所述热端固定部与固定壳体可拆卸连接，所述热端接触部与半导体制冷片的热效应面抵接，并将半导体制冷片固定于安装凹腔中；在热端固定片的上端设置有散热片，所述散热片包括有导热部和栅格散热部，所述 导热部的两侧与风扇罩体可拆卸连接，栅格散热部固定于导热部的一侧。
  5. 根据权利要求4所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述热端固定部与风扇罩体之间设置有隔热支撑块，所述隔热支撑块上设置有至少两个螺纹通孔，所述热端固定部使用螺丝钉穿过螺纹通孔与风扇罩体螺纹连接，将隔热支撑块夹在热端固定部与风扇罩体之间。
  6. 根据权利要求3所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述导风板上设有导入风孔和导出风孔，所述空气冷却腔内设置有隔板，所述隔板包括有固定部和导风部，所述导风部位于导入风孔与导出风孔之间，所述固定部夹在导风板与风扇罩体之间。
  7. 根据权利要求2所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述内循环风扇包括风扇叶和风扇电机，所述风扇叶位于风扇罩体的内腔，风扇电机固定于风扇罩体的外侧，所述风扇电机的转轴穿过风扇罩体与风扇叶连接。
  8. 根据权利要求2所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述半导体制冷组件与内循环风扇之间设置有旋转组件，所述旋转组件包括电机、固定支架、连接轴和翻转轴，所述电机通过固定支架固定在风扇罩体上，所述连接轴的一端穿过风扇罩体与电机连接，另一端穿过烘烤内胆与翻转轴连接。
  9. 根据权利要求1所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述烘烤内胆的外表面设置有覆盖在左侧壁、右侧壁以及上侧壁的U形外壳，所述U形外壳与烘烤内胆之间形成散热通道，所述循环制冷组件固定安装于右侧壁的散热通道内。
  10. 根据权利要求9所述的一种具有冷藏保鲜功能的烤箱，其特征在于：所述散热通道内安装有至少一散热风扇，U形外壳上布设有若干通风孔。
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