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Refrigerator

A refrigerator and cooling mode technology, which is applied to household refrigeration devices, lighting and heating equipment, household appliances, etc., and can solve problems such as three-way valve outlet blockage

Active Publication Date: 2012-05-09
TOSHIBA LIFESTYLE PROD & SERVICES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is a problem that when the three-way valve in the above-mentioned refrigeration cycle is narrowed and adjusted, the outlet of the three-way valve may be clogged due to excessive narrowing or foreign matter such as copper powder is caught.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0078] according to Figure 1 to Figure 9 The refrigerator 1 of Example 1 of the present invention will be described.

[0079] (1) Structure of Refrigerator 1

[0080] according to figure 1 The structure of the refrigerator 1 will now be described.

[0081] Such as figure 1 As shown, the casing (cabinet) 100 of the refrigerator 1 of the present example forms a storage space inside the heat-insulating box, and is divided into a freezing zone (hereinafter referred to as "F zone") by a horizontal heat-insulating partition wall. ) 2 and a plurality of storage rooms such as a refrigerating area (hereinafter referred to as "R area") 3, the freezing area 2 has a freezing room 201 as a storage room, an ice making room 202 and a small freezing room, and the refrigerating area 3 It has a refrigerator compartment 301 and a vegetable compartment 302 . In addition, the small freezer compartment is arranged in the lateral direction of the ice making compartment 202 .

[0082] On the f...

example 2

[0171] Second, according to Figure 10 The refrigerator 1 of Example 2 of the present invention will be described.

[0172] Example 2 is different from Example 1 in that, as the cooling mode, R mode and F mode can be performed in Example 1, while in Example 2, in addition to the R mode and F mode, the control section 102 can also perform cooling mode. The simultaneous cooling mode (hereinafter, referred to as "RF mode") in which the flow flows to both the R evaporator 5 and the F evaporator 4 to simultaneously cool the R zone 3 and the F zone 2 performs cooling operation using these three cooling modes.

[0173] cooling operation as Figure 10 As shown, it is performed in the order of R mode, RF mode, and F mode. In the RF mode, the opening of the R outlet 32R of the three-way valve 11 is narrowed to be smaller than that in the R mode, so that the flow path resistance toward the R evaporator 5 in the RF mode is greater than that in the R mode resistance.

[0174] In addition...

example 3

[0179] Next, the refrigerator 1 of Example 3 of the present invention will be described.

[0180] In each of the above examples, when changing from R mode or RF mode to F mode, only when the R outlet 32R of the three-way valve 11 is in a narrowed state, temporarily set it to a fully open state to remove foreign matter, and then set it to a fully open state. Closed state and transition to F mode.

[0181] At this time, the F outlet 32F of the three-way valve 11 in the F mode may not be fully opened depending on the rotation speed of the compressor 9, and the opening may be adjusted in a narrowed state.

[0182] However, immediately after switching from another mode (R mode or RF mode) to the F mode, the amount of coolant inside the F evaporator 4 decreases immediately, so that the cooling capacity is insufficient.

[0183] For this reason, in Example 3, when changing from other modes to the F mode, regardless of the rotational speed of the compressor 9, the following control i...

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PUM

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Abstract

The present invention provides a refrigerator which can prevent blockage of a three-way valve in refrigeration cycle. When one outlet of the three-way valve (11) which corresponds with a random cooling mode selected from R mode or F mode narrows, and after one cooling mode is performed and the cooling mode is to be converted to the other cooling mode, a control part (102) is converted to the other cooling mode after one outlet of the three-way valve (11) is set to a fully open state in preset time from a narrowing state.

Description

technical field [0001] Embodiments of the present invention relate to a refrigerator. Background technique [0002] Previously, a refrigerator has been proposed as a refrigeration cycle having a refrigeration cycle having a structure in which a compressor, a condenser, and a three-way valve are connected in order, and in the three-way An evaporator for refrigeration is connected to an outlet on the refrigeration side of the valve, and an evaporator for freezing is connected to an outlet on the refrigeration side. [0003] In this refrigerator, by controlling the three-way valve, a refrigeration cooling mode in which the coolant flows through the refrigerating evaporator and a freezing cooling mode in which the coolant flows through the freezing evaporator can be realized. [0004] [Prior art literature] [0005] [Patent Document] [0006] [Patent Document 1] Japanese Patent Laid-Open No. 2003-14357 [0007] However, there is a problem that when adjusting the constriction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00
Inventor 野口明裕林秀竹丸谷裕树
Owner TOSHIBA LIFESTYLE PROD & SERVICES CORP