CN109890253B - 用于烹饪容器的冷却加热托盘 - Google Patents

用于烹饪容器的冷却加热托盘 Download PDF

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CN109890253B
CN109890253B CN201780065481.6A CN201780065481A CN109890253B CN 109890253 B CN109890253 B CN 109890253B CN 201780065481 A CN201780065481 A CN 201780065481A CN 109890253 B CN109890253 B CN 109890253B
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约瑟夫·霍勒
约阿希姆·霍勒
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0482—Details common to both closed and open types
    • A47F3/0486—Details common to both closed and open types for charging, displaying or discharging the articles
    • A47F3/0491—Cooled shelves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G23/00—Other table equipment
    • A47G23/04—Containers with means for keeping food cool or hot
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F10/00—Furniture or installations specially adapted to particular types of service systems, not otherwise provided for
    • A47F10/06—Furniture or installations specially adapted to particular types of service systems, not otherwise provided for for restaurant service systems
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0482—Details common to both closed and open types
    • A47F3/0486—Details common to both closed and open types for charging, displaying or discharging the articles
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A47J36/2405—Warming devices for warming food contained in vessels immersed in a water bath, e.g. chafers or steam tables
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A47J36/2483—Warming devices with electrical heating means
    • 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
    • A47J39/00—Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils
    • A47J39/006—Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils for either storing and preparing or for preparing food on serving trays, e.g. heating, thawing, preserving
    • 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
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/005—Combined cooling and heating devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F2003/0473—Vending or display tables

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

用于烹饪容器的冷却加热托盘(11)，具有底部(12)和侧壁(13,14,15)，其中提供加热装置和冷却装置，加热装置加热底部(12)；根据本发明，底部(12)和侧壁(13,14,15)均由不锈钢制成，优选地，底部(12)通过焊接到底部(12)的多个位置的螺栓(16)与夹层板(20)固定连接，夹层板(20)优选地由一层不锈钢(21)，一层铝(22)和另一层不锈钢(23)组成，冷却装置既冷却侧壁(13,14,15)也冷却底部(12)。

Description

用于烹饪容器的冷却加热托盘
技术领域
本发明涉及一种用于烹饪容器的冷却加热托盘，其具有底部和侧壁，并且提供了加热装置和冷却装置，用于作为加热托盘或作为冷却托盘的可选操作，其中加热装置加热底部。
现有技术
冷却托盘和加热托盘在餐馆中广泛用于供应自助餐。它们是标准尺寸的托盘，可以悬托在同样具有标准尺寸的烹饪容器中。通常，每种托盘只能实现一种功能，即冷却或加热，冷却和加热结合的托盘也是已知的，例如，patcit0001：DE 202011050444U--。
在既是冷却托盘也是加热托盘的情况下，两种不同的操作模式是可能的：干燥或水浴(水浴器)。在水浴器的操作模式中，托盘应该是长年绝对防水的；如果餐馆的客人想要拿取食物时，却伸进一滩水里，这将是非常不愉快的。
在干燥操作模式中，加热托盘应该能够产生高达140℃的温度，以便将烹饪容器中的食物保持在所需温度。另一方面，如果冷却托盘也打算配发冰淇淋，则它应该能够达到明显低于0℃的温度。
根据patcit0002：DE 202011050444 U--所述，加热装置由陶瓷玻璃板制成托盘的底部。虽然使用陶瓷玻璃板可以达到高温，但是不可能采用水浴器的操作模式。根据该文献，冷却装置由冷却管制成，但是，其仅仅冷却侧壁。因此无法达到明显低于0℃的温度。
已知的用于水浴器操作模式的加热托盘通常由铬钢制成。如果所述加热托盘干燥并被加热至约140℃的温度，它们会翘曲，从而变得无法使用，因为烹饪容器不再能悬托。
发明内容
本发明的目的是提供一种冷却加热托盘，它既可以在干燥操作模式下操作，也可以在水浴器操作模式下操作，并且也适用于配发冰淇淋。
根据本发明，该目的通过所述冷却加热托盘实现，其中底部和侧壁均由不锈钢构成。底部通过一系列固定点与夹层板固定连接，夹层板优选地由不锈钢层、铝层和不锈钢层组成，并且冷却装置既冷却侧壁也冷却底部。
优选的不锈钢是铬钢。所述铬钢不是为了排除其他合金成分；而是，尤其包括铬镍钢。
根据本发明，冷却加热托盘由不锈钢(铬钢)制成–通常是作为水浴器的情况。这可以通过弯折和焊接来实现，因此经过数十年的时间仍然防水不是问题。但是，如上所述，这种托盘在被加热时会有翘曲的倾向。因此，底部用夹层板加固，出于重量原因，中间层由铝构成，在顶层和底层分别提供相应的不锈钢层(铬钢)。结果，夹层板获得了非常高的抗弯刚度，并具有相对低的重量和良好的导热性。夹层板通过多个固定点，例如通过旋拧，固定连接到底部，因此底部不会翘曲。
与patcit0003：DE 202011050444 U--不同的是，由于底部不是由玻璃制成，因此还有可能通过冷却管冷却底部，因此可以达到明显低于0℃的温度。
底部和夹层板之间的连接方便地以这样的方式进行，即将多个螺栓焊接到底部上并用于将夹层板旋拧到底部上。结果，可以确保底部和夹层板之间在多点固定连接。
优选地，冷却装置包括至少一根冷却管，该一根或多根冷却管贴靠或固定地贴靠在夹层板的底面和托盘侧壁。作为替代方案，冷却管道可以并入到夹层板的中间层中，或者可以在其中铸造冷却管。
优选地，加热装置包括至少一个硅树脂表面加热器，其贴靠在夹层板的底面。
附图的简要说明
将参考附图更详细地解释本发明。附图示出了本发明的冷却加热托盘的截面。
本发明的最佳实施方式
用11表示整体的冷却加热托盘，其具有底部12和侧壁13,14,15。(第四侧壁位于图平面的前面。)如图所示，底部12和侧壁13,14可以用一块弯折的铬钢制成。侧壁15和看不见的第四侧壁同样由铬钢制成并焊接在其上。这总体上形成了一个多年不漏水的托盘。
螺栓16焊接到底部12上并通过螺母17固定夹层板20.夹层板20由一层铬钢21，一层铝22和另一层铬钢23组成，夹层21-23通过粘接或压制彼此固定连接。夹层板20由于两个间隔开的铬钢层21和23而具有很高的弯曲刚性，但由于使用铝作为中间层，因此又不太重。总的来说，通过多个螺栓16连接到底部12的弯曲刚性夹层板20保护整个冷却加热托盘11免于由于高热而翘曲。
冷却管18附接到侧壁13,14(同样地附接到另外两个侧壁，但是在图中不可见)。底部12可以有各种冷却方式的可能性，冷却管19可以附接到夹层板20底部，冷却管道也可以铣到铝层22中，如虚线24处所示，或者可以在其中铸造冷却管，如虚线25处所示。
如果存在冷却管19，则在其间附接硅树脂加热垫26；否则，可以安装一个大面积的硅胶加热垫。
制冷剂流过冷却管18,19,25或冷却管道24，可以使制冷剂进行集中冷却，但是也可以在冷却加热托盘11的正下方直接连接冷却单元，如从专利patcit0004：DE202011050444 U--可知，使得可以进行单独操作。
冷却管18,19由铜构成。它们通过金属片部件固定在侧壁13,14上，并通过铝条粘接到底部12上。它们通常由绝缘材料包围，绝缘材料本身由盖板保护。由此可另外固定或压紧冷却管18,19。
本发明的冷却和加热箱可以实现四种功能：
冷却(干燥)
通过水浴冷却
通过水浴加热
通过干燥加热
可以获得-5℃至+140℃的温度。

Claims (7)

1.一种用于烹饪容器的冷却加热托盘(11)，所述冷却加热托盘具有底部(12)和侧壁(13,14,15)，所述底部(12)和所述侧壁(13,14,15)均由不锈钢构成，其中设有冷却装置，可对侧壁(13,14,15)和所述底部(12)进行冷却，其特征在于，所述冷却加热托盘还设有加热装置(26)，所述加热装置(26)对所述底部(12)进行加热，所述底部(12)通过一系列固定点与夹层板(20)固定连接，所述夹层板(20)由不锈钢层(21)，铝层(22)和不锈钢层(23)彼此固定连接组成。
2.如权利要求1所述的冷却加热托盘，其特征在于，多个螺栓(16)焊接在所述底部(12)上，用于将所述夹层板(20)旋拧到所述底部(12)上。
3.根据权利要求1或2所述的冷却加热托盘，其特征在于，所述冷却装置包括至少一根冷却管(18,19)，一根或多根冷却管贴靠或固定地贴靠在所述夹层板(20)的底面并贴靠所述侧壁(13,14,15)。
4.根据权利要求1或2所述的冷却加热托盘，其特征在于，所述冷却装置还包括铸造在所述夹层板(20)的中间层即所述铝层(22)中的至少一根冷却管(25)和/或铣到铝层(22)中的冷却管道(24)，所述冷却管道(24)并入到所述冷却管(25)中，并且所述冷却管(18)固定地贴靠在侧壁上。
5.根据权利要求1或2所述的冷却加热托盘，其特征在于，所述加热装置包括至少一个硅树脂表面加热器(26)，所述硅树脂表面加热器(26)贴靠在所述夹层板(20)的底面。
6.根据权利要求3所述的冷却加热托盘，其特征在于，所述加热装置包括至少一个硅树脂表面加热器(26)，所述硅树脂表面加热器(26)贴靠在所述夹层板(20)的底面。
7.根据权利要求4所述的冷却加热托盘，其特征在于，所述加热装置包括至少一个硅树脂表面加热器(26)，所述硅树脂表面加热器(26)贴靠在所述夹层板(20)的底面。
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