Electric refrigerator with vacuum refreshing system and vacuum refreshing box
A vacuum preservation system and technology of vacuum preservation, which are used in packaging under vacuum/special atmosphere, household appliances, lighting and heating equipment, etc., can solve the problems of no other options, inconvenient use, and inability to vacuumize refrigerators, and achieve convenient Operation, the effect of increasing the storage time
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[0032] see image 3 , which discloses a schematic diagram of a vacuum preservation system in a refrigerator according to an embodiment of the present invention. The refrigerator is an existing household refrigerator refrigerated by a refrigeration cycle system, which includes a refrigerator with a refrigerator and a freezer The box body is wrapped by a foam layer filled with heat-insulating materials. Since the box body of the refrigerator, the refrigerator compartment and other structures belong to the prior art, details will not be repeated here.
[0033] see image 3 , the vacuum preservation system includes a vacuum pump 1A, a motor (not shown) that drives the vacuum pump, an extraction pipeline 3A, two two-position two-way valves 4A as control devices for controlling the on-off of the extraction pipeline 3A, a vacuum preservation box 7A and an extraction The joint 5A between the pipelines 3A is set on the vacuum preservation box 7A as a one-way valve 8A of the inflation ...
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