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CN-121977318-A - Air-conditioning fresh-keeping module and refrigeration equipment

CN121977318ACN 121977318 ACN121977318 ACN 121977318ACN-121977318-A

Abstract

The application discloses an air-conditioning fresh-keeping module and refrigeration equipment, wherein the air-conditioning fresh-keeping module comprises a shell and a hollow fiber assembly, an air-conditioning cavity, a first oxygen-enriched cavity and a second oxygen-enriched cavity which are respectively positioned at two ends of the air-conditioning cavity and are isolated by a sealing structure, the air-conditioning cavity is provided with an air vent, the main body part of a hollow fiber pipe stretches across the air-conditioning cavity, and the two ends of the hollow fiber pipe respectively penetrate through the sealing structure and are opened at the oxygen-enriched cavities at the two ends and are both configured to suck and discharge gas in the pipe through negative pressure. The modified atmosphere fresh-keeping module realizes bidirectional suction through different-side layout at two ends, shortens the maximum flow path in a single hollow fiber tube by half, greatly compensates the on-way resistance loss generated by long and thin tube cavities, ensures that the center position of the long-distance hollow fiber tube maintains high vacuum degree and osmotic pressure difference, effectively solves the pain point of far-end efficiency attenuation in the traditional single-end suction scheme, and remarkably improves the working efficiency of the modified atmosphere fresh-keeping module.

Inventors

  • YI YAO
  • WANG CHUNLI
  • LIU HAOQUAN
  • ZHANG YUNING

Assignees

  • 青岛海尔电冰箱有限公司
  • 海尔智家股份有限公司

Dates

Publication Date
20260505
Application Date
20260302

Claims (10)

  1. 1. An air conditioning fresh keeping module (100), characterized by comprising: The shell (10) is internally provided with an air-conditioning cavity (11), a first oxygen-enriched cavity (12) and a second oxygen-enriched cavity (13) which are respectively positioned at two ends of the air-conditioning cavity (11), the air-conditioning cavity (11) and the first oxygen-enriched cavity (12) and the air-conditioning cavity (11) and the second oxygen-enriched cavity (13) are mutually isolated through a sealing structure (14), and the air-conditioning cavity (11) is provided with a vent (15) through which air flows; The hollow fiber assembly comprises a plurality of hollow fiber pipes (21), wherein a main body part (211) of each hollow fiber pipe (21) is transversely arranged in each air-conditioning cavity (11), a first end (212) of each hollow fiber pipe (21) penetrates through the sealing structure (14) and is opened in the first oxygen-enriched cavity (12), a second end (213) of each hollow fiber pipe (21) penetrates through the sealing structure (14) and is opened in the second oxygen-enriched cavity (13), and the first oxygen-enriched cavity (12) and the second oxygen-enriched cavity (13) are both configured to discharge gas entering the inside of each hollow fiber pipe (21) through negative pressure suction.
  2. 2. The modified atmosphere preserving module (100) according to claim 1, wherein the vent (15) comprises a gas inlet (151) arranged in the middle of the housing (10), a first gas outlet (152) arranged near one side of the first oxygen-enriched chamber (12), and a second gas outlet (153) arranged near one side of the second oxygen-enriched chamber (13).
  3. 3. The modified atmosphere fresh keeping module (100) according to claim 2, wherein the extending direction of the hollow fiber tubes (21) is parallel to the length direction of the housing (10), a plurality of the hollow fiber tubes (21) are sequentially arranged in the width direction of the housing (10), and a plurality of the first gas outlets (152) and a plurality of the second gas outlets (153) are sequentially arranged in the width direction of the housing (10).
  4. 4. The modified atmosphere fresh keeping module (100) according to claim 2, wherein the modified atmosphere fresh keeping module (100) further comprises a blower (30), the blower (30) being disposed in a middle portion of the housing (10) and adjacent to the gas inlet (151), the blower (30) being configured to drive a flow of gas from the middle portion of the modified atmosphere chamber (11) to both ends of the modified atmosphere chamber (11) to form a flow of gas that diffuses along a surface of the main body portion (211) of the hollow fiber tube (21) to both ends thereof.
  5. 5. The modified atmosphere preserving module (100) according to claim 1, wherein the first oxygen-enriched cavity (12) is communicated with a first vacuum pump (40), the second oxygen-enriched cavity (13) is communicated with a second vacuum pump (50), and the first vacuum pump (40) and the second vacuum pump (50) are synchronously operated.
  6. 6. The modified atmosphere preserving module (100) according to claim 1, wherein the first oxygen-enriched chamber (12) and the second oxygen-enriched chamber (13) are communicated to the same vacuum pump through a confluence pipeline.
  7. 7. The modified atmosphere fresh keeping module (100) according to claim 1, wherein a plurality of the hollow fiber tubes (21) are linearly and flatly arranged, and a ventilation gap through which gas passes is maintained between adjacent hollow fiber tubes (21).
  8. 8. The modified atmosphere fresh-keeping module (100) according to claim 1, wherein the sealing structure (14) comprises a first sealing layer (141) and a second sealing layer (142) which are respectively arranged at two ends of the modified atmosphere chamber (11), the connection part of the first end (212) and the main body part (211) is embedded in the first sealing layer (141), and the connection part of the second end (213) and the main body part (211) is embedded in the second sealing layer (142).
  9. 9. The modified atmosphere module (100) according to claim 1, wherein the span length of a single hollow fiber tube (21) within the modified atmosphere chamber (11) ranges from 0.5m to 2m.
  10. 10. A refrigeration appliance, characterized by comprising a fresh-keeping compartment (200) and an air-conditioning fresh-keeping module (100) according to any one of claims 1 to 9; The fresh-keeping compartment (200) is communicated with the air-conditioning cavity (11) through the air vent (15), and the air-conditioning fresh-keeping module (100) reduces the oxygen concentration of the fresh-keeping compartment (200), or The air outlets of the first oxygen-enriched cavity (12) and the second oxygen-enriched cavity (13) are communicated with the fresh-keeping compartment (200), and high oxygen gas generated by the first oxygen-enriched cavity (12) and the second oxygen-enriched cavity (13) is led into the fresh-keeping compartment (200).

Description

Air-conditioning fresh-keeping module and refrigeration equipment Technical Field The application relates to an air-conditioning fresh-keeping module, in particular to refrigeration equipment with the air-conditioning fresh-keeping module. Background With the improvement of the food preservation requirements of people, the air-conditioning preservation technology is gradually applied to refrigeration equipment (such as a refrigerator). The technology generally utilizes the difference of permeation rates of the hollow fiber tube to oxygen and nitrogen, and partial oxygen in the air is pumped away by establishing negative pressure on one side of the hollow fiber tube, so that a low-oxygen and nitrogen-rich environment is formed in the fresh-keeping room, and oxidation and respiration of food materials are delayed. The traditional hollow fiber component mostly adopts a single-end suction structure, and because the pipe diameter of the hollow fiber pipe is extremely thin and the length is long, the negative pressure can generate severe pressure attenuation in the process of along-path transmission. This results in that the side remote from the suction end often fails to maintain a sufficient osmotic pressure difference, so that the utilization rate remote from the suction end is extremely low, limiting its oxygen regulating effect. If the pumping power is increased for improving the efficiency, the problems of energy consumption and noise are brought about. Therefore, how to overcome the pressure loss of the slender lumen and improve the overall ventilation efficiency while ensuring the transverse span of the air-conditioning fresh-keeping module to adapt to the wide body space is a technical problem to be solved at present. Disclosure of Invention The application aims to provide an air-conditioning fresh-keeping module and refrigeration equipment capable of effectively improving ventilation efficiency. In order to achieve the above object, an embodiment of the present application provides an air-conditioned fresh-keeping module, including: The shell is internally provided with an air-conditioning cavity, a first oxygen-enriched cavity and a second oxygen-enriched cavity which are respectively positioned at two ends of the air-conditioning cavity, the air-conditioning cavity and the first oxygen-enriched cavity as well as the air-conditioning cavity and the second oxygen-enriched cavity are mutually isolated through a sealing structure, and the air-conditioning cavity is provided with a vent through which air flows; The hollow fiber assembly comprises a plurality of hollow fiber pipes, the main body part of each hollow fiber pipe stretches across the air-conditioning cavity, the first end of each hollow fiber pipe penetrates through the sealing structure and is opened in the first oxygen-enriched cavity, the second end of each hollow fiber pipe penetrates through the sealing structure and is opened in the second oxygen-enriched cavity, and the first oxygen-enriched cavity and the second oxygen-enriched cavity are both configured to discharge gas entering the inside of the hollow fiber pipe through negative pressure suction. As a further improvement of the application, the air vent comprises a gas inlet arranged in the middle of the shell, a first gas outlet arranged close to one side of the first oxygen-enriched cavity, and a second gas outlet arranged close to one side of the second oxygen-enriched cavity. As a further improvement of the present application, the extending direction of the hollow fiber tubes is parallel to the length direction of the housing, a plurality of the hollow fiber tubes are sequentially arranged along the width direction of the housing, and a plurality of the first gas outlets and a plurality of the second gas outlets are sequentially arranged along the width direction of the housing. As a further improvement of the present application, the modified atmosphere fresh-keeping module further includes a blower disposed in the middle of the housing and adjacent to the gas inlet, the blower being configured to drive the flow of gas from the middle of the modified atmosphere chamber to both ends of the modified atmosphere chamber to form a gas flow diffused along the surface of the main body portion of the hollow fiber tube toward both ends thereof. As a further improvement of the application, the first oxygen-enriched cavity is communicated with a first vacuum pump, the second oxygen-enriched cavity is communicated with a second vacuum pump, and the first vacuum pump and the second vacuum pump synchronously operate. As a further improvement of the application, the first oxygen-enriched cavity and the second oxygen-enriched cavity are communicated to the same vacuum pump through a converging pipeline. As a further improvement of the application, a plurality of the hollow fiber tubes are arranged linearly and straightly, and ventilation gaps for passing gas are kept between adjacent hollow fi