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Refrigerating device and container refrigerating system

A refrigeration device and refrigeration system technology, which is applied to household refrigeration devices, control systems, refrigerators, etc., can solve the problems of internal air stagnation and the reduction of the speed of the evaporator fan motor, so as to reduce fuel consumption and save fuel consumption. Effect

Inactive Publication Date: 2017-05-24
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, when the rotation speed of the electric compressor is reduced by the inverter, the rotation speed of the evaporator fan motor that circulates the internal air in the container is also reduced.
Therefore, especially in the case of a North American specification trailer that is 53 feet in length, the internal airflow is short-circuited and circulated, resulting in significant internal air stagnation.

Method used

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  • Refrigerating device and container refrigerating system
  • Refrigerating device and container refrigerating system
  • Refrigerating device and container refrigerating system

Examples

Experimental program
Comparison scheme
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no. 1 approach

[0032] Below, use Figure 1 to Figure 6 The first embodiment of the present invention will be described in detail. figure 1 The overall structure of the container refrigeration system of 1st Embodiment is shown. In this first embodiment, the refrigeration system for containers includes a power generation unit 20 and a refrigeration unit 10 . figure 2 Indicates the shape of the vehicle, image 3 The structure of the refrigeration cycle of the refrigeration apparatus 10 is shown.

[0033] Such as image 3 As shown, the refrigeration device 10 of this embodiment includes an electric compressor 12 , a condenser 13 , an evaporator 15 , a condenser fan 16 , and an evaporator fan 17 . The condenser fan 16 is driven by the DC output of the DC power supply device 230 to send air to the condenser 13 . The evaporator fan 17 is driven by the DC output of the DC power supply device 230 to send air to the evaporator 15 . The control device 30 controls the electric compressor 12 , th...

no. 2 approach

[0080] Next, refer to Figure 7 A second embodiment of the present invention will be described.

[0081] exist Figure 7 Among them, the generator 22 driven by the engine 21 outputs a three-phase 400V AC voltage. The AC voltage output by this generator 22 is led to an AC-DC converter (also simply called converter) 24a. converter 24a instead of figure 1 The AC generator 24b outputs a DC voltage of 12V to charge the battery 23 . The DC voltage of 12V output from the battery 23 is led to the control device 30 . In addition, a DC voltage of 12V is introduced to the condenser motor 10a and the evaporator motor 10a for driving the condenser fan 16 and the evaporator fan 17 via the contactor 23a for the condenser motor 10a and the contactor 23b for the evaporator fan motor 10b, respectively. appliance fan motor 10b.

[0082] The DC power supply unit 230 that generates a DC output from the power of the engine 21 has a converter 24 a and a battery 23 . The three-phase 400V AC v...

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PUM

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Abstract

A refrigerating device cools the interior of a container (100). The refrigerating device comprises an inverter device (24), an electric compressor (12), a condenser (13), an evaporator (15), a condenser fan (16), an evaporator fan (17), and a control device (30). The inverter device is supplied with alternating current output from a power generator (22) that is driven by an engine (21). In terms of the electric compressor, the amount of refrigerant discharge is controlled by the inverter device. The refrigerant from the electric compressor flows into the condenser and then the refrigerant dissipates heat to the air outside of the container. The refrigerant from the condenser flows into the evaporator and cools the interior of the container. The condenser fan is driven by the direct current output of a direct current power source (230) and blows air onto the condenser. The evaporator fan is driven by the direct current output of the direct current power source and blows air onto the evaporator. The control device controls at least the electric compressor, the inverter device, and the engine.

Description

[0001] Cross-references to related applications [0002] This application is based on the JP Patent application 2014-183588 for which it applied on September 9, 2014, The content of the indication is incorporated in this application as a reference. technical field [0003] The present invention relates to a refrigerating device for cooling the inside of a container, and a container refrigerating system including the refrigerating device and a power generating device. Background technique [0004] A trailer equipped with a refrigeration system for containers that drives a refrigeration device with electric power generated by a generator has been put into practical use. The refrigeration unit of this trailer does not have an inverter but has an electric compressor driven by a three-phase induction motor. The blower such as the condenser fan motor in the refrigeration unit is also driven by the same three-phase output. However, in this refrigeration device, the rated value of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B27/00F25D11/00
CPCB60H1/00428F25B27/00F25B49/025F25B2600/021F25B2600/111F25B2600/112F25D11/00Y02T10/88B60H1/00364B60H1/0045B60H1/3208B60H2001/3238B60H2001/3273H02P27/06Y02B30/70
Inventor 水间郁夫
Owner DENSO CORP