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  Total heat exchange air conditionerUSPTO Application #: 20060236713Title: Total heat exchange air conditioner Abstract: A total heat exchange air conditioner (20) includes at least an air-providing member (21) for providing an outlet airflow from indoors and an inlet airflow from outdoors, an air inlet passage and an air outlet passage isolating from each other for guiding the outlet and inlet airflows respectively flowing therein, a refrigerant line (25) spans across the air inlet passage for conducting sensible heat exchange between the inlet airflow and refrigerant filled in the refrigerant line, and a total heat exchange core (24) communicating with both the air inlet and air outlet passages for conducting a total heat exchange between the inlet and outlet airflows. (end of abstract)
Agent: North America Intellectual Property Corporation - Merrifield, VA, US Inventor: Tay-Jian Liu USPTO Applicaton #: 20060236713 - Class: 062271000 (USPTO) Related Patent Categories: Refrigeration, Atmosphere And Sorbent Contacting Type The Patent Description & Claims data below is from USPTO Patent Application 20060236713. Brief Patent Description - Full Patent Description - Patent Application Claims
FIELD OF THE INVENTION [0001] The present invention relates generally to an air conditioner, and more particularly to a total heat exchange air conditioner for exchanging sensible and latent heat between airflows having different temperatures and humidities. DESCRIPTION OF RELATED ART [0002] In our daily life, ventilation systems such as air-conditioners are commonly provided in working or living spaces, e.g., office buildings and apartments, for regulating the indoor temperature in order to obtain a favorable environment for us to live. [0003] An air conditioner includes a cooling unit mounted on a roof or a space between the roof and a ceiling of a building. The cooling unit has a cooling water line for circulating cooling water therein. A blower blows air through the cooling water line to lower a temperature of the air. Then the cooled air is distributed to rooms of the building to lower the temperature thereof. [0004] Referring to FIG. 11, a cooling unit of a conventional air conditioner is shown. The cooling unit includes a cooling water container 2 in which a serpentine cooling water line (not labeled) extends. A driving member 4 is provided for driving cooling water to flow through the cooling water line. A plurality of blowers 6 connected with intakes of a plurality of air pipes (not shown) is used for driving air to flow across the cooling water line whereby the a temperature of the air is lowered before it is dissipated to an indoor area of a house needing to be air-conditioned. A controller 8 is provided for controlling a temperature of the indoor area via changing the operation speed of the blowers 6. [0005] In the operation of the air conditioner, the blowers 6 drive a high temperature air in the intakes of the air pipes which is located near the roof of the house to flow across the cooling water line. The low temperature water circulated in the cooling water line exchanges sensible heat with the hot air flowing through the cool water line whereby the hot air is cooled. Then, the cooled air is transported to the indoor area of the house via the air pipes. As the high temperature air in the intakes is transported to the indoor area of the house after it is cooled by the cooling water line, there will be a negative pressure at the inlets of the air pipes. The negative pressure draws the air in the indoor to the inlets of the air pipes, from here the air is driven to flow through the cooling water lines to be cooled; then the cooled air is transported to the indoor area of the house to cool the indoor area again. The above circulation is repeated so that the people in the indoor area of the house are always provided with the air with comfortable low temperature. [0006] However, the air conditioner is a closed system, wherein the air is circulated in the air pipes in a closed loop, without exchange with fresh outdoor air, whereby after a long period of use, the air quality could be deteriorated. Furthermore, the air conditioner can only adjust the temperature (sensible heat) of the air, but cannot adjust the humidity (latent heat) of the air, whereby the air after cooled by the cooling water line still can not give the people in the indoor area of the house a totally satisfied comfortable feeling. SUMMARY OF INVENTION [0007] The present invention relates to a total heat exchange air conditioner for exchanging sensible and latent heat between airflows having different temperatures and humidites. According to an embodiment of the present invention, the total heat exchange air conditioner includes at least an air-providing member for providing an outlet airflow from indoors and an inlet airflow from outdoors, an air inlet passage and an air outlet passage isolating from each other for guiding the outlet and inlet airflows respectively flowing therein, a cooling refrigerant line spanning across the air inlet passage and the air outlet passage for conducting sensible heat exchange between the inlet airflow and the outlet airflow and refrigerant filled in the refrigerant line so that the temperatures of the inlet and outlet airflows are lowered after flowing through the refrigerant line. A total heat exchange core fluidically connects with both the air inlet and air outlet passages for conducting a total heat exchange between the inlet and outlet airflows before the inlet airflow flows through the refrigerant line and after the outlet airflow flows through the refrigerant line. [0008] Other advantages and novel features of the present invention will become more apparent from the following detailed description of preferred embodiments when taken in conjunction with the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS [0009] FIG. 1 is an explanatory view of a total heat exchange air conditioner in accordance with a preferred embodiment of the present invention; [0010] FIG. 2 is an explanatory view of a total heat exchange core of the total heat exchange air conditioner shown in FIG. 1; [0011] FIG. 3 is an explanatory view of a total heat exchange air conditioner in accordance with a second embodiment of the present invention; [0012] FIG. 4 is an explanatory view of a total heat exchange air conditioner in accordance with a third embodiment of the present invention; [0013] FIG. 5 is an explanatory view of a total heat exchange air conditioner in accordance with a fourth embodiment of the present invention; [0014] FIG. 6 is an explanatory view of a total heat exchange air conditioner in accordance with a fifth embodiment of the present invention; [0015] FIG. 7 is an explanatory view of a preferred embodiment of a connection manner of a plurality of air pipes and the total heat exchange core of the total heat exchange air conditioner in accordance with the above embodiments of the present invention; [0016] FIGS. 8 is an explanatory view of a second embodiment of a connection manner of a plurality of air pipes and the total heat exchange core of the total heat exchange air conditioner in accordance with the above embodiments of the present invention; [0017] FIGS. 9 and 10 are explanatory views of a third embodiment of a connection manner of a plurality of air pipes and the total heat exchange core of the total heat exchange air conditioner in accordance with the above embodiments of the present invention; and [0018] FIG. 11 is an explanatory view of a cooling unit of an air conditioner in accordance with a related art. DETAILED DESCRIPTION [0019] Referring to FIG. 1, a total heat exchange air conditioner 20 in accordance with a preferred embodiment of the present invention is shown. The air conditioner 20 is positioned between a roof 31 of a house 30 and a ceiling 32 of the house 30 for conducting heat exchange between an inlet airflow from outdoors and an outlet airflow from indoors having different temperatures (sensible heat) and humidities (latent heat) from those of the inlet airflow. The air conditioner 20 includes two air blowers 21 for driving the inlet and outlet airflows flowing in an air inlet and an air outlet passage 22, 23, respectively. The air inlet and air outlet passages 22, 23 fluidically connect with a total heat exchange core 24 and a cooling water container 25 having a serpentine cooling water line extending therein, for conducting a total (sensible and latent) heat exchange between the inlet and outlet airflows. Continue reading... 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