Ceiling type air conditioner

Patent metadata

Field	Value
Publication number	US-9335059-B2
Application number	US-201314049653-A
Country	US
Kind code	B2
Filing date	Oct 9, 2013
Priority date	Feb 21, 2013
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A ceiling type air conditioner includes a case defining an outer appearance, a fan disposed to a bottom of the case, a turbo fan disposed within the case, the turbo fan including a main plate rotated by power provided from the fan motor and a blade having a side connected to the main plate, and a heat exchanger disposed outside the turbo fan. A cooling passage cooling the fan motor is defined between the main plate and the bottom surface of the case. The cooling passage includes a flow part through which air passing through the blade flows into the flow part toward the fan motor, and a panel installation part to which a panel is installed for adjusting an amount of air flowing into the flow part toward the fan motor.

First claim

What is claimed is:

1. A ceiling type air conditioner comprising:
a case defining an outer appearance;
a fan motor disposed to a bottom surface of the case;
a turbo fan disposed within the case, the turbo fan comprising a main plate rotated by power provided from the fan motor and a blade having a side connected to the main plate;
a heat exchanger disposed outside the turbo fan,
wherein a cooling passage cooling the fan motor is defined between the main plate and the bottom surface of the case, and
wherein the cooling passage comprises:
a flow part through which air passing through the blade flows into the flow part toward the fan motor;
a panel installation part to which a panel is installed to adjust an amount of air flowing into the flow part toward the fan motor; and
an extension part that is a surface defined when a surface on which the panel installation part and the flow part meet each other extends parallel to the main plate,

wherein the panel installation part is disposed above the extension part and the flow part is disposed under the extension part.

2. The ceiling type air conditioner according to claim 1 , wherein the bottom surface of the case is parallel to the main plate.

3. The ceiling type air conditioner according to claim 2 , wherein a height of the panel installation part is greater than that of the flow part.

4. The ceiling type air conditioner according to claim 3 , wherein the height of each of the panel installation part and the flow part is constant.

5. The ceiling type air conditioner according to claim 1 , wherein the panel comprises:
a body; and
an inclined part defining one surface of the body,
wherein an eddy generation part is formed on the inclined part generating an eddy in the air passing through the flow part toward the fan motor.

6. The ceiling type air conditioner according to claim 5 , wherein, when viewed from the fan motor toward the heat exchanger, the inclined part is inclined in one direction.

7. The ceiling type air conditioner according to claim 6 , wherein, when viewed from the fan motor toward the heat exchanger, the flow part has a gradually increasing width.

8. The ceiling type air conditioner according to claim 1 , wherein the panel comprises:
a body;
a projection disposed on one surface of the body to protrude by a length; and
a groove defined in one surface of the body and recessed by a depth,
wherein an eddy generation part generating an eddy in air passing through the flow part is formed in the groove.

9. The ceiling type air conditioner according to claim 8 , wherein each of the projection and the groove is provided in plurality, and
the plurality of projections and the plurality of grooves are alternately disposed with respect to each other.

10. The ceiling type air conditioner according to claim 2 , wherein, in an axial cross-sectional view, from the bottom surface of the case toward the main plate, a line connecting a vertically central point of the blade to a vertically central point of the heat exchanger is disposed parallel to the main plate.

11. The ceiling type air conditioner according to claim 2 , wherein, in an axial cross-sectional view, from the bottom surface of the case toward the main plate, a vertical distance between a central point of the blade and a central point of the heat exchanger is within a predetermined value.

12. The ceiling type air conditioner according to claim 11 , wherein the heat exchanger comprises an upper heat exchanger disposed at an upper side with respect to the central point of the heat exchanger and a lower heat exchanger disposed at a lower side, and
the predetermined value is a value within a range in which a wind speed mean value of air passing through the upper heat exchanger and a wind speed mean value of air passing through the lower heat exchanger are uniform.

13. A ceiling type air conditioner comprising:
a case defining an outer appearance;
a fan motor disposed to a bottom surface of the case;
a turbo fan disposed within the case, the turbo fan comprising a main plate rotated by power provided from the fan motor and a blade having a side connected to the main plate;
a heat exchanger disposed outside the turbo fan,
wherein a cooling passage cooling the fan motor is defined between the main plate and the bottom surface of the case, and
wherein the cooling passage comprises:
a flow part through which air passing through the blade flows into the flow part toward the fan motor; and
a panel installation part to which a panel is installed to adjust an amount of air flowing into the flow part toward the fan motor,

wherein the panel comprises a body and an inclined part defining one surface of the body, and
wherein, when viewed from the fan motor toward the heat echanger, the flow part has a gradually increasing width.

14. A ceiling type air conditioner comprising:
a case defining an outer appearnace;
a fan motor disposed to a bottom surface of the case;
a turbo fan disposed within the case, the turbo fan comprising a main plate rotated by power provided from the fan motor and a blade having a side connected to the main plate;
a heat exchanger disposed outside the turbo fan,
wherein a cooling passage cooling the fan motor is defined between the main plate and the bottom surface of the case, and
wherein the cooling passage comprises:
a flow part through which air passing through the blade flows into the flow part toward the fan motor;
a panel installation part to which a panel is installed to adjust an amount of air flowing into the flow part toward the fan motor; and

wherein the panel comprises a body; a projection disposed on one surface of the body to protrude by a length; and a groove defined in one surface of the body and recessed by a depth,
wherein an eddy generation part generating an eddy in air passing through the flow part is formed in the groove.

15. A ceiling type air conditioner comprising:
a case defining an outer appearance;
a fan motor disposed to a bottom surface of the case;
a turbo fan disposed within the case, the turbo fan comprising a main plate rotated by power provided from the fan motor and a blade having a side connected to the main plate;
a heat exchanger disposed outside the turbo fan,
wherein a cooling passage cooling the fan motor is defined between the main plate and the bottom surface of the case, and
wherein the cooling passage comprises:
a flow part through which air passing through the blade flows into the flow part toward the fan motor; and
a panel installation part to which a panel is installed to adjust an amount of air flowing into the flow part toward the fan motor,

wherein the main plate is spaced apart from the bottom surface of the case downward, and the panel contacts with the bottom surface of the case and extends downward, and
wherein the flow part is defined between a bottom of the panel and the main plate.

Assignees

• Lg Electronics Inc

Inventors

• Cho Namjoon
• Kim Kyungrock
• Yang Dongkeun

Classifications

• F24F1/0022

  Centrifugal or radial fans · CPC title

• F04D25/082

  the unit having provision for cooling the motor · CPC title

• F24F1/0007 Primary

  Indoor units, e.g. fan coil units (self-contained units F24F1/02) · CPC title

• F04D25/0653

  the motor having a plane air gap, e.g. disc-type · CPC title

• F24F2001/0037

  Mechanical Engineering · mapped topic