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Refrigerator with pressure equalisation valve

A technology for refrigerators and equalizing valves, which is applied in household refrigeration devices, household appliances, cooling fluid circulation devices, etc., and can solve problems such as freezing and pressure that can no longer be equalized through valves

Active Publication Date: 2009-08-19
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It has been shown in practice that such pressure equalization valves have a tendency to freeze during operation of the refrigerator, so that the pressure can no longer be equalized via the valve

Method used

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  • Refrigerator with pressure equalisation valve
  • Refrigerator with pressure equalisation valve
  • Refrigerator with pressure equalisation valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] FIG. 1 is a schematic perspective view of a refrigeration device with a cabinet 1 and a door 2 hinged thereon, which enclose a cold interior 3 . A magnetic seal 4 is connected in known manner to the inner side of the door 2 facing the cabinet 1 , which fits tightly on the front side 5 of the cabinet 1 in the closed position of the door 2 . The front side 5 is heated by a refrigerant pipe not visible in the figure, which extends around the inner space 3 in the inner space of the casing 1 adjacent to the front side 5 and is connected between the pressure outlet of the compressor and the condenser room and has hot refrigerant flowing through it during compressor operation.

[0028] The pressure equalization valve is housed in an opening 6 made in the lower area of ​​the door 2 . figure 2 An example of a possible construction of a pressure equalization valve is shown in , which shows a perspective longitudinal section through the pressure equalization valve 7 . A sleeve 1...

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Abstract

The invention relates to a refrigerator comprising a housing with a chassis (1) and a door (2), enclosing a chilled interior (3). A pressure equalisation valve (7) extends through a wall of the housing (1, 2), in order to permit a flow of ambient air into the interior (3) and to block an outflow of air from the interior (3). A through hole (15) permitting flow in two directions is formed in a wall of the housing, parallel to the pressure equalisation valve (7), the flow of which is less than the pressure equalisation valve in the through flow direction and greater than the leakage flow value of the pressure equalisation valve (7) in the blocked direction.

Description

technical field [0001] The present invention relates to a refrigeration device, such as a refrigerator or a refrigerator, having a pressure equalization valve for preventing a vacuum from being generated inside the refrigeration device. Background technique [0002] Whenever the door of the refrigeration unit is opened, hot air is drawn in, and when the door is closed, the hot air then recools and creates a vacuum by which the door is drawn to the front side of the enclosure. After the door is closed, only the pressure between the interior space and the surrounding environment is equalized again, otherwise the vacuum would make it very difficult to open the door. Although the pressure will always be equalized again after a period of time since the seal fitted between the door and the front side of the refrigerator's cabinet will not form a completely airtight seal, the general aim is to keep this seal as low as possible The leakage rate due to the exchange of air due to lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D17/04
CPCF25D17/047F25D23/087
Inventor J·迪博尔德K-F·莱布勒M·马立希
Owner BOSCH SIEMENS HAUSGERATE GMBH
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