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Refrigeration appliances with multiple temperature zones

A technology for refrigeration appliances and temperature zones, which is applied to compressors with multiple evaporators, refrigerators, refrigeration components, etc., can solve problems such as power consumption, lack of phase transformation, and unassisted cooling power.

Active Publication Date: 2021-03-16
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] If one of the two heat exchangers arranged in parallel branches in the refrigerant circuit is to heat and the other to cool, the refrigerant circuit upstream of these two heat exchangers must conduct not only vapor but also liquid refrigeration refrigerant, the refrigerant vapor in the branch circuit reaching the heat exchanger to be cooled does not contribute to the cooling power due to the lack of a phase transition (Phasenwechsel), but work must be expended in order to squeeze through the throttle connected before the heat exchanger part of the refrigerant vapor

Method used

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  • Refrigeration appliances with multiple temperature zones
  • Refrigeration appliances with multiple temperature zones

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A domestic refrigeration appliance is shown schematically with a thermally insulated housing 1 in which a plurality of temperature zones 2 , 3 , 4 are formed, each in the form of a compartment that can be closed by means of a door. The figures show three such temperature zones, however further temperature zones may also be provided.

[0025] Each temperature zone 2 , 3 , 4 is equipped with a heat exchanger 5 , 6 , 7 , for example a plate heat exchanger of the rollbond or tube-on-sheet type. Such heat exchangers can be installed inside the cells of the temperature zones 2, 3, 4 in front of the walls or exposed in the walls between the insulation and the inner container delimiting the cells.

[0026] Alternatively, the temperature zones 2 , 3 , 4 can also be divided into storage compartments and heat exchanger compartments, wherein the fan 8 drives the air exchange between the storage compartments and the heat exchanger compartment.

[0027] These heat exchange...

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PUM

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Abstract

The invention relates to a refrigeration appliance comprising first and second temperature zones (2, 3), a refrigerant circuit (13) with two parallel branches (14, 15), wherein the two branches The first branch (14) has a controllable first throttling position (16) and a first heat exchanger (5) for adjusting the temperature of the first temperature zone (2), and the two The second branch (15) of the two branches has a second throttling point (18) and a second heat exchanger (6) for regulating the temperature of the second temperature zone (3). the branch on which the refrigerant circuit (13) divides into the two branches (14, 15) is configured as a separator (11) for separating gas and liquid, and the The second branch (15) is connected to the liquid outlet (23) of the separator (11).

Description

technical field [0001] The invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, having at least two temperature zones and a refrigerant circuit with a heat exchanger for each of these temperature zones and connected upstream of the heat exchanger The throttling locations, at least one of the throttling locations is controllable. With the aid of this controllable throttle, the pressure of the refrigerant inside the heat exchanger can be varied within wide limits. When the set pressure is lower than the vapor pressure of the refrigerant at ambient temperature, the heat exchanger acts as an evaporator cooling the associated temperature zone. Conversely, if the controllable restriction is opened to such an extent that the pressure in the heat exchanger located behind it exceeds the vapor pressure of the refrigerant at ambient temperature, the refrigerant vapor can condense in the heat exchanger And the associated temperature zone is h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B43/00F25B39/00F25B41/30F25B41/40
CPCF25B1/00F25B39/00F25B41/00F25B43/00F25B5/00F25B43/003F25B2400/02F25B2400/23F25D31/005F25D11/022F25B5/02F25D17/065F25D2317/061
Inventor A·巴布克
Owner BOSCH SIEMENS HAUSGERATE GMBH
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