Heat pump system
a heat exchanger and heat source technology, applied in mechanical equipment, refrigeration components, light and heating equipment, etc., can solve the problems of uncomfortable or undesired temperature drop, frost of the heat exchanger absorbing heat from the heat source region,
Inactive Publication Date: 2017-07-27
ELECTROLUX HANGZHOU HOME APPLIANCES
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Benefits of technology
This patent describes a heat pump system for a conditioned space that has two thermal fluid circuits. The first circuit includes a compressor, a first heat exchanger, and a heat accumulator passage, while the second circuit includes the compressor and a second heat exchanger. The second circuit can also bypass the heat accumulator passage. The technical effect of this system is improved efficiency and flexibility in heating and cooling the conditioned space.
Problems solved by technology
One issue in operation of known heat pumps is that the heat exchanger absorbing heat from a heat source region may frost when operating in low temperature environments.
Where the previous heat sink region is a conditioned space that is desirable to heat or keep warm, this removal of heat to defrost the frosted heat exchanger is undesirable and may result in an uncomfortable or undesired decrease in temperature.
Method used
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[0013]A heat pump system according to the concepts of the present subject matter is generally indicated by the numbers 10, 10A in the drawings. Heat pump system 10, 10A includes a first heat exchanger 11, which is in communication with a conditioned space. As the term is used herein, unless otherwise noted, a “conditioned space” may be any region that is heated or cooled by the operation of the heat pump system 10, 10A. A conditioned space refers to the region to which or from which the heat pump system 10, 10A is adapted to pump heat. Without limitation, in some embodiments the conditioned space may be a room, building, vehicle interior, refrigerator interior, freezer interior, or other appliance, device, or structure that comprises a space to be temperature controlled. In some non-limiting embodiments, the first heat exchanger 11 may be referred to as an indoor heat exchanger or a conditioned space heat exchanger. Heat pump system 10, 10A also includes a second heat exchanger 12, ...
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Provided is a heat pump system (10, 10A) for a conditioned space comprising a first thermal fluid circuit adapted to selectably operate to circulate a thermal fluid therein, and a second thermal fluid circuit adapted to selectably operate to circulate the thermal fluid therein. The first thermal fluid circuit may comprise a compressor (15), a first heat exchanger (11), and a passage (55) of a heat accumulator (50). The second thermal fluid circuit may bypass the first heat exchanger (11), or the passage (55) of the heat accumulator (50), or both. The second thermal fluid circuit may comprise the compressor (15), and a second heat exchanger (12).
Description
TECHNICAL FIELD[0001]The present invention generally relates to a heat pump system. More particularly, the present invention relates to a heat pump system employing a heat accumulator to defrost a heat exchanger in the system. Most particularly, the present invention relates to a heat pump system, where the accumulator obtains waste heat from the compressor in the system.BACKGROUND[0002]A heat pump is a device that transfers thermal energy from a heat source to a heat sink. Heat pumps can move thermal energy in a direction opposite to the direction of the spontaneous heat flow. A heat pump uses energy to accomplish the desired transfer of thermal energy from heat source to heat sink.[0003]Compressor driven air conditioners are one example of a heat pump; however, the term heat pump is more general and applies to devices which are adapted for use for space heating, or space cooling. When a heat pump is used for heating, it may use the same basic refrigeration cycle employed by an air...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F25B47/02F25B31/00F25B41/06F25B13/00
CPCF25B47/022F25B13/00F25B31/006F25B2341/0661F25B2313/008F25B2313/02741F25B41/062F25B40/06F25B2400/04F25B2400/05F25B2400/24F25B41/385
Inventor LIU, WEI
Owner ELECTROLUX HANGZHOU HOME APPLIANCES