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Refrigeration cycle unit

A refrigeration cycle and refrigerant technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as the deterioration of design freedom, the inability to sufficiently cool the inverter, and the inability to ensure the cross-sectional area of ​​the passage.

Inactive Publication Date: 2014-10-15
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, as in the refrigeration cycle unit of Patent Document 1, a dedicated ventilation path for cooling the inverter that is different from the ventilation path of the outside air that blows air to the condenser is provided. The cause of the significant deterioration in the design freedom related to the layout of various constituent instruments
[0008] Furthermore, even if a dedicated ventilation path is provided in a limited space in the cabinet, the cross-sectional area of ​​the path for circulating the external air with a sufficient amount of air required to cool the converter cannot be ensured sometimes. In the configuration of the circulation unit, the converter cannot be cooled sufficiently

Method used

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Embodiment Construction

[0029] Below, use Figure 1 ~ Figure 4 An embodiment of the present invention will be described. The refrigeration cycle unit 1 of the present embodiment is applied to a refrigerated container that is mounted on a ship, a vehicle, or the like, and is used to transport an object to be transported in a refrigerated storage or refrigerated storage state.

[0030] and, Figure 1 ~ Figure 4 The arrows of up and down, left and right, and front and rear indicate the directions in a state where the refrigerated container (refrigeration cycle unit 1) is loaded on a ship, vehicle, etc. In addition, Figure 1 ~ Figure 4 The up-down direction, the left-right direction, and the front-rear direction correspond to the vertical direction, the width direction, and the depth direction, respectively.

[0031] The refrigeration cycle unit 1 is configured to house a vapor compression refrigeration cycle in a metal cabinet 10. First, the cabinet 10 is formed in a substantially rectangular parallelepipe...

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Abstract

Provided is a refrigeration cycle unit. A refrigeration cycle radiator (13) is arranged in a case (10) by using a heat exchange surface as a level. The radiator (13) is provided with a power supply part, i.e. convertors (22a,22b) for supplying power for motor compressors (11,12) just under the heat exchange surface; external gas flows from a lower side of the radiator (13) to an upper side through a radiator-fan (14). Accordingly, the convertors (22a,22b) can be fully cooled by external gas; the temperature of the external gas is lower than the temperature of the external gap in heat exchange with a refrigerant through the radiator (13).

Description

Technical field [0001] The present invention relates to a refrigeration cycle unit, which is constructed by accommodating a vapor compression refrigeration cycle in a cabinet. Background technique [0002] A refrigerated container is currently known, which is loaded on ships, vehicles, etc., and is used to transport objects to be transported under refrigerated storage or refrigerated storage. This kind of refrigerated container generally has a refrigeration cycle unit which is constructed by accommodating a vapor compression refrigeration cycle in a cabinet. The vapor compression refrigeration cycle is blown to the interior space of the container (transportation object). The storage space) is cooled by blowing air. [0003] Furthermore, as the compressor of the refrigeration cycle, an inverter-controlled electric compressor with good controllability is often used so that the refrigeration cycle can exhibit high cycle efficiency (COP) in response to the cooling load. In addition, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02
Inventor 桂川纯一
Owner DENSO CORP