Multi-layer cover of vacuum drawer device

The invention relates to a multi-layer cover (2) which is designed in a sandwich structure and which is intended to be placed on a drawer (3) of a vacuum drawer arrangement (0), said cover allowing the drawer interior (R) to be vacuumized after the drawer (3) is sealed, the cover (2) has at least on...

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Bibliographic Details
Main Author BELSKY DAVID
Format Patent
LanguageChinese
English
Published 30.08.2022
Subjects
BLASTING
COLD ROOMS
COMBINED HEATING AND REFRIGERATION SYSTEMS
COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS
HEAT PUMP SYSTEMS
HEATING
ICE-BOXES
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
REFRIGERATION OR COOLING
REFRIGERATORS
WEAPONS
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Summary:The invention relates to a multi-layer cover (2) which is designed in a sandwich structure and which is intended to be placed on a drawer (3) of a vacuum drawer arrangement (0), said cover allowing the drawer interior (R) to be vacuumized after the drawer (3) is sealed, the cover (2) has at least one outer gas-tight surface layer (22 ', 22' ') and a core layer (21'), in which a plurality of recesses (A) are formed in the core layer (21 ') and in part in one of the at least one outer surface layer (22' '), in which recesses a vacuum-pumping channel, a pump and at least one sensor are arranged, the cover being to be designed more compactly and with a minimum structural height, and the minimum susceptibility to interference is realized. This is achieved in that a printed circuit board (20 ') is arranged on one of the at least one outer surface layer (22', 22 '') in the direction of the core layer (21 '), or the at least one outer gas-tight surface layer (22', 22 '') is designed as a printed circuit board (20 ')
Bibliography:Application Number: CN202080092831