Low-temperature preservation box with air pressure balancing device
It is a technology of air pressure balance and low temperature preservation. It is used in household refrigeration devices, household appliances, lighting and heating equipment. It can solve problems such as inability to open doors, loss of large cooling capacity, and reduced air pressure, so as to achieve the effect of ensuring heat preservation without loss of cooling capacity.
Inactive Publication Date: 2016-10-12
QINGDAO AUCMA ULTRA LOW TEMPERATURE FREEZING MACHINES
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Problems solved by technology
In the use of refrigeration equipment, after the door of the refrigeration product is opened, it will cause a large loss of cooling capacity compared with the inside of the box, and hotter gas will enter the box. After the door is closed, the inside of the box will expand due to the influence of the hot gas entering the door, and the air pressure will drop below the external atmospheric pressure. make it impossible to open the door
Method used
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[0018] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0019] Such as Figure 1-6 As shown, a low-temperature storage box with an air pressure balance device includes a box body 1, a door body 2 and an air pressure balance device 3. A section of air flow passage is arranged in the foam layer 7 of the box body 1 or the door body 2, and the air pressure balance device 3 includes a one-way rubber valve 4, an air flow pipeline 5 and a rubber fixing ring 6, the one-way rubber valve 4 is fixed in the air flow pipeline 5, and the one-way rubber valve 5 faces the inner side of the box body 1, and the air flow pipeline 5 is arranged on In the air flow channel and through the inner wall 8 of the foam layer and the outer wall 9 of the box or door, the two ends of the air flow pipeline 5 are respectively fixed by rubber fixing rings 6, and the air pressure balance device 3 is arranged on t...
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The invention discloses a low-temperature preservation box with an air pressure balancing device, and relates to the technical field of refrigeration equipment. The low-temperature preservation box solves the problem that a lot of cooling energy inside a box body is lost after doors of existing low-temperature preservation boxes are opened, the boxes are expanded after the doors are closed due to hot air entering the boxes in the door opening process, the air pressure is lowered to be lower than the external barometric pressure and the doors cannot be opened. The low-temperature preservation box with the air pressure balancing device comprises a box body, a door body and the air pressure balancing device; an airflow channel is formed in a foaming layer of the box body or the door body; the air pressure balancing device comprises a one-way rubber valve, an airflow pipeline and rubber fixing rings, wherein the one-way rubber valve is fixed inside the airflow pipeline, the airflow pipeline is arranged inside the airflow channel and penetrates through the inner wall of the foaming layer and the outer wall of the box body or the door body, and the two ends of the airflow pipeline are fixed by the rubber fixing rings; the air pressure balancing device is arranged at the upper part of the box body; the one-way rubber valve is fixed to the middle of the airflow pipeline and is connected to the airflow pipeline in a sealed mode.
Description
technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a low-temperature preservation box with an air pressure balance device. Background technique [0002] Atmospheric pressure varies in air at different temperatures. The higher the temperature, the faster the atmosphere expands and the lower the air pressure. In the use of refrigeration equipment, after the door of the refrigeration product is opened, it will cause a large loss of cooling capacity compared with the inside of the box, and hotter gas will enter the box. After the door is closed, the inside of the box will expand due to the influence of the hot gas entering the door, and the air pressure will drop below the external atmospheric pressure. Make it impossible to open the door. Contents of the invention [0003] The object of the present invention is to address the above-mentioned deficiencies, and proposes to adopt the principle of one-way flow of air...
Claims
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IPC IPC(8): F25D23/00
CPCF25D23/00
Inventor 单波赵向斌李志波李斌王学孔邢学智
Owner QINGDAO AUCMA ULTRA LOW TEMPERATURE FREEZING MACHINES