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Patent Searching and Data


Title:
AIR EXTRACTING PUMP ASSEMBLY AND REFRIGERATING AND FREEZING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/099450
Kind Code:
A1
Abstract:
An air extracting pump assembly (10) and a refrigerating and freezing device. The air extracting pump assembly (10) comprises a mounting box (200) and an air extracting pump (300). An accommodating space is defined in the mounting box (200), at least part of the box wall of the mounting box (200) is made of a micro-porous silencing plate (212, 222). Multiple silencing through-holes (2122) are formed in the surface of the micro-porous silencing plate (212, 222). The air extracting pump (300) is disposed in the mounting box (200). The micro-porous silencing plate is configured to absorb noise generated by the air extracting pump (300) when the air extracting pump (300) runs. By means of the micro-porous silencing plate, the air extracting pump assembly (10) reduces noise from spreading out when the air extracting pump (300) runs.

Inventors:
XIA ENPIN (CN)
ZHANG HAO (CN)
HE GUOSHUN (CN)
WANG SHENGFEI (CN)
ZHU XIAOBING (CN)
Application Number:
CN2017/114193
Publication Date:
June 07, 2018
Filing Date:
December 01, 2017
Export Citation:
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Assignee:
QINGDAO HAIER JOINT STOCK CO LTD (CN)
International Classes:
F04B39/00; F25D11/02; F25D17/06; F25D23/10
Foreign References:
CN106593819A2017-04-26
CN206290401U2017-06-30
CN201218181Y2009-04-08
CN203454299U2014-02-26
CN201251336Y2009-06-03
CN1532495A2004-09-29
US4872320A1989-10-10
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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