Indoor unit of ceiling type air-conditioner

Patent metadata

Field	Value
Publication number	US-9746231-B2
Application number	US-201414539523-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Nov 12, 2013
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

An indoor unit of a ceiling type air-conditioner includes a main body having an inlet port and an outlet port provided at a lower portion thereof, a heat exchanger having a tube through which a refrigerant flows, a blowing fan which forcibly causes air to flow, and a control box comprising a case which is fixed to the main body and a cover which is rotatably coupled to the case so as to open and close the case and to which a printed circuit board having electronic components mounted thereon is fixed.

First claim

What is claimed is:

1. An indoor unit of a ceiling type air-conditioner, comprising:
a main body having an inlet port and an outlet port provided at a lower portion thereof;
a heat exchanger;
a blowing fan; and
a control box comprising a case fixed to an inner side of a side wall of the main body at a location adjacent to the inlet port, and a cover rotatably coupled to the case so as to open and close the case and to which a printed circuit board is fixed.

2. The indoor unit according to claim 1 , wherein a rotational shaft of the cover is in parallel with a rotational shaft of the blowing fan and located at an upper portion of the control box.

3. The indoor unit according to claim 1 , wherein the cover is opened while being rotated upward, and closed while being rotated downward.

4. The indoor unit according to claim 1 , wherein the printed circuit board is disposed to be vertical when the cover is closed.

5. The indoor unit according to claim 1 , wherein the printed circuit board is disposed so that a surface thereof on which electronic components are mounted is directed downward when the cover is opened.

6. The indoor unit according to claim 1 , wherein a maximum rotational angle of the cover is in a range of about 70° to about 90°.

7. The indoor unit according to claim 1 , wherein a transversal width of the control box is smaller than a longitudinal width thereof when seen in an axial direction of a rotational shaft of the cover.

8. The indoor unit according to claim 1 , wherein
the cover is configured to rotate toward a rotational axis of the blowing fan to open the case and to rotate away from the rotational axis of the blowing fan to close the case.

9. The indoor unit according to claim 1 , further comprising a guide rib which is provided adjacent to the heat exchanger and guides indoor air sucked through the inlet port to the heat exchanger.

10. The indoor unit according to claim 9 , wherein the control box is installed between the guide rib and the side wall of the main body.

11. The indoor unit according to claim 10 , wherein the guide rib interferes with the cover, and limits a maximum rotational angle of the cover.

12. The indoor unit according to claim 1 , wherein the case comprises a fixed coupling part which guides rotation of the cover.

13. The indoor unit according to claim 12 , wherein the fixed coupling part has a ring shape or a partly cut-away ring shape.

14. The indoor unit according to claim 12 , wherein the cover comprises a rotational coupling part which is rotatably coupled to the fixed coupling part.

15. The indoor unit according to claim 14 , wherein the rotational coupling part has a ring shape or a partly cut-away ring shape.

16. The indoor unit according to claim 14 , wherein at least one of the fixed coupling part and the rotational coupling part has a wiring groove through which a wire connected to the printed circuit board passes.

17. The indoor unit according to claim 16 , wherein a position of the wiring groove is not changed when the cover is rotated.

18. The indoor unit according to claim 14 , wherein the fixed coupling part and the rotational coupling part include stopper protrusions which are mated with each other to fix the cover when the cover is opened.

19. The indoor unit according to claim 1 , wherein the cover and the case are coupled with each other by at least one fastening member so that the cover is fixed when the cover is closed.

20. The indoor unit according to claim 12 , wherein the case is formed by coupling a case body formed of a metallic material and a guide member which includes the fixed coupling part, and the guide member is formed with an injection-molded resin material.

21. The indoor unit according to claim 14 , wherein
the cover is formed by coupling an external cover formed of a metallic material and an internal cover,
the internal cover includes the rotational coupling part, and has the printed circuit board fixed thereto, and
the internal cover is formed with an injection-molded resin material.

22. An indoor unit of a ceiling type air-conditioner, comprising:
a main body having an inlet port and an outlet port provided at a lower portion thereof;
a heat exchanger;
a blowing fan;
a guide rib which is provided adjacent to the heat exchanger and guides indoor air sucked in through the inlet port toward the heat exchanger; and
a control box comprising a case which is fixed to a side wall of the main body and a cover which is coupled to the case so as to be rotatable around a horizontal rotational axis to open and close the case,
wherein the control box is installed between the side wall of the main body and the guide rib, such that a transversal width of the control box is smaller than a longitudinal width of the control box when seen in an axial direction of the horizontal rotational axis.

23. An indoor unit of a ceiling type air-conditioner, comprising:
a main body having an inlet port and an outlet port provided at a lower portion thereof;
a heat exchanger;
a blowing fan; and
a control box comprising:
a case fixed to the main body and has a fixed coupling part, and
a cover which has a rotational coupling part rotatably coupled to the fixed coupling part and is rotatable around a horizontal rotational axis,
wherein at least one of the fixed coupling part and the rotational coupling part has a wiring groove through which a wire passes.

24. A ceiling type air-conditioner, comprising:
an indoor unit, comprising:
a main body having an inlet port and an outlet port provided at a lower portion thereof, and
a control box including a case fixed to an inner side of a side wall of the main body at a location adjacent to the inlet port, and a cover which is rotatable to access a printed circuit board disposed inside the control box,

wherein, when the cover is in a closed position, the printed circuit board is arranged vertically to be parallel to the side wall of the main body such that electronic components mounted on the printed circuit board are directed in a substantially perpendicular direction to the side wall.

25. The ceiling type air-conditioner according to claim 24 , wherein when the cover is rotated to an open position, the printed circuit board moves together with a rotation of the cover, such that the electronic components mounted on the printed circuit board are directed to face toward the lower portion of the main body.

26. The ceiling type air-conditioner according to claim 24 , wherein a width of the control box corresponding to a first direction which is parallel to a horizontal ground plane is less than a length of the control box in a second direction which is perpendicular to the horizontal ground plane and parallel to the side wall.

27. The ceiling type air-conditioner according to claim 24 , wherein
the control box includes an internal member which is coupled to the cover on one side, and is coupled to the printed circuit board and the case on the other side, and
the internal member includes a first coupling part which is coupled together with a second coupling part disposed at the case such that the first coupling part and the second coupling part guide rotation of the cover about a horizontal rotational axis.

28. The ceiling type air-conditioner according to claim 27 , wherein a wire connected to the printed circuit board passes through a gr

Assignees

• Samsung Electronics Co Ltd

Inventors

• Moon Hong Yeol
• Kim Yeon Su
• Kim Hyun Ho
• Nam Jin Hyung
• Yoo Jae Sung

Classifications

• F25D17/06 Primary

  by forced circulation · CPC title

• F24F13/20 Primary

  Casings or covers · CPC title

• F24F1/0007

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

• F24F2001/0037

  Mechanical Engineering · mapped topic

• F24F11/89

  Arrangement or mounting of control or safety devices · CPC title