Method for cooling converter, in particular frequency converter in heat pump circuit
A technology of converters and frequency converters, applied in the field of converters, can solve problems such as service life damage and achieve the effect of preventing condensation
Active Publication Date: 2019-11-19
ROBERT BOSCH GMBH
View PDF17 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
As a result, the device to be cooled is subjected to a temperature cycle from hot to cold to hot with every switching process of the valve, whereby the service life of the device is impaired
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] figure 1 and 2 A schematic illustration of a heat pump circuit 1 is shown in each case, wherein the heat pump circuit 1 can be as figure 1 in heating operation as in or as in figure 2run in cooling mode as in .
[0034] The heat pump circuit 1 comprises an inverter 31 , a first heat exchanger 10 , a second heat exchanger 20 and a third heat exchanger 30 to exchange thermal energy between a cooling medium and the environment of the respective heat exchanger 10 , 20 , 30 . Furthermore, the heat pump circuit 1 comprises a compressor module 40 and an expansion valve 50 , wherein the expansion valve 50 is arranged between the first heat exchanger 10 and the second heat exchanger 20 .
[0035] as in figure 1 and 2 shows that an expansion valve 50 is used in the primary heat pump circuit 1 to regulate the temperature, wherein, if the expansion valve is an externally actuatable expansion valve 50 and the opening degree of the expansion valve 50 can be related to the syste...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method for cooling a converter, in particular a frequency converter in a heat pump circuit, wherein the heat pump circuit comprises at least a first heat exchanger, a secondheat exchanger, and a third heat exchanger for exchanging thermal energy between a refrigerant and an environment of the particular heat exchanger. Furthermore, the refrigerant circuit has a compressor module and an expansion valve, wherein the expansion valve is arranged between the first heat exchanger and the second heat exchanger. The first heat exchanger, the second heat exchanger, the thirdheat exchanger, the compressor module and the expansion valve are connected together via a line system such that the refrigerant can circulate in the heat pump circuit. In this case, the third heat exchanger is designed to remove thermal energy from the converter and emit the thermal energy to the refrigerant. According to the invention, provision is made for the expansion valve to be controlledsuch that a surface temperature of the third heat exchanger is always higher than a critical temperature. Furthermore, the invention relates to a device for cooling a converter, in particular a frequency converter in a heat pump circuit.
Description
technical field [0001] The invention relates to a method according to claim 1 for cooling a converter, in particular a frequency converter, in a heat pump circuit and a device according to claim 10 for cooling a converter in a heat pump circuit. Background technique [0002] During operation, electronic and / or electrical components used, for example, in converters generally generate non-negligible electrical losses, which are largely converted into lost heat. This lost heat impairs the function and service life of the electronic and / or electrical components, so that efficient heat removal of the lost heat is required. In principle, the cooling of converters of refrigeration compressors by means of a cooling medium is known. Here, the expansion valve is adjusted to a defined superheat. The converter cooling is integrated into the existing coolant circuit. Heat transfer takes place between the electronic components and the cooling medium fluid. [0003] In converters coole...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/02H05K7/20
CPCH05K7/20936H05K5/0212
Inventor S·克林克J·P·富克斯
Owner ROBERT BOSCH GMBH