Blower

Patent metadata

Field	Value
Publication number	US-11739760-B2
Application number	US-202117332681-A
Country	US
Kind code	B2
Filing date	May 27, 2021
Priority date	Jun 2, 2020
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

A blower may include a lower case having a suction port, a fan provided inside the lower case, an upper case provided above the lower case and having a space through which air blown from the fan flows, a discharge port penetrating the upper case and formed to be elongated, and a flow guide provided in the space and extending in a direction crossing a longitudinal direction of the discharge port.

First claim

What is claimed is:

1. A blower comprising:
a first case having a suction port;
a fan provided inside the first case;
a second case provided above the first case and having an inner space;
a discharge port penetrating the second case and extending in a longitudinal direction of the second case;
a fan provided inside the first case and forming an air flow direction from the suction port to the discharge port; and
a plurality of flow guides provided in the inner space and extending in a direction crossing the longitudinal direction of the discharge port,
wherein each flow guide includes an upstream end and a downstream end for the air flow direction, the upstream end of one of the plurality of flow guides is inclined toward the fan more than the upstream end of another of the plurality of flow guides positioned farther from the fan than the one of the plurality of flow guides.

2. The blower of claim 1 , wherein the plurality of flow guides are spaced apart from and aligned with each other in the longitudinal direction of the discharge port.

3. The blower of claim 2 , wherein the discharge port extends along a rear end of the second case, and each of the flow guides extends from the rear end of the second case toward a front end of the second case.

4. The blower of claim 2 , wherein each of the flow guides is spaced apart in a rear direction from a front end of the second case to form a gap between each of the flow guides and an inner surface of the second case.

5. The blower of claim 4 , wherein the gap formed by the one of the plurality of flow guides is larger than the gap formed by the other of the plurality of flow guides.

6. The blower of claim 5 , wherein the front end of the second case is inclined to become closer to a rear end of the second case in an upward direction.

7. The blower of claim 5 , wherein the discharge port is inclined toward a front side in an upward direction, and the front end of the second case is inclined to toward each of the flow guides in an upward direction.

8. The blower of claim 1 , wherein each of the flow guides includes a guide front end facing a front end of the second case and a guide rear end connected to a rear end of the second case, and
wherein the plurality of flow guides comprises a first guide provided closest to the fan among the plurality of flow guides, the first guide extending convexly upward from the guide rear end of the first guide toward the guide front end of the first guide such that the guide front end of the first guide is positioned lower than the guide rear end of the first guide.

9. The blower of claim 8 , wherein the plurality of the flow guides comprise a second guide provided above the first guide and extending convexly upward from the guide rear end of the second guide toward the guide front end of the second guide such that the guide front end of the second guide is positioned lower than the guide rear end of the second guide.

10. The blower of claim 9 , wherein the plurality of flow guides comprises a third guide provided above the second guide and extending convexly upward from the guide front end of the third guide toward the guide rear end of the third guide such that the guide front end of the third guide is positioned higher than the guide rear end of the third guide.

11. The blower of claim 10 , wherein the plurality of the flow guides comprises a fourth guide provided farthest from the fan among the plurality of flow guides and extending obliquely upward in a forward direction.

12. The blower of claim 1 , further comprising a heater provided in the inner space, wherein the heater comprises:
a heat dissipation tube extending in a vertical direction;
a plurality of radiating fins through which the heat dissipation tube penetrates, the plurality of radiating fins extending in a direction different from a longitudinal direction of the discharge port and spaced apart from each other in a vertical direction; and
a heating passage formed between the plurality of the radiating fins, wherein the discharge port and the plurality of flow guides are positioned between the radiating fins and a rear end of the second case.

13. The blower of claim 12 , wherein each of the flow guides comprises:
a guide rear end connected to the rear end of the second case; and
a guide front end spaced apart from the radiating fins.

14. The blower of claim 1 , wherein the second case includes:
a tower base connected to the first case;
a first tower extending upward from the tower base and having a first discharge port included in the discharge port;
a second tower extending upward from the tower base and having a second discharge port included in the discharge port,
a blowing space formed between the first and second towers;
a third discharge port included in the discharge port and formed at the tower base and opened in a vertical direction; and
at least one guide vane provided at the third discharge port.

15. The blower of claim 14 , wherein the third discharge port extends in a front-rear direction at an upper surface of the tower base, and the at least one guide vane includes a plurality of the guide vanes that are spaced apart from each other in an extension direction of the third discharge port.

16. The blower of claim 14 , wherein the plurality of flow guides is inclined toward a front side with respect to the vertical direction.

17. The blower of claim 14 , further comprising a diffuser provided above the fan to guide air discharged from the fan upward, wherein the third discharge port and the at least one guide vane are provided above the diffuser.

18. The blower of claim 14 , wherein an upper surface of the tower base has a concave curvature between the first tower and the second tower, and the third discharge port is formed at the upper surface of the tower base.

19. The blower of claim 1 ,
wherein the second case comprises:
a first tower; and
a second tower spaced apart from the first tower to form a blowing space therebetween,

wherein the discharge port comprises:
a first discharge port extending obliquely forward in a vertical direction at the first tower; and
a second discharge port extending obliquely forward in a vertical direction at the second tower, and

wherein the plurality of flow guides comprises:
a first flow guide provided inside the first tower and extending in a direction different from a longitudinal direction of the first discharge port; and
a second flow guide provided inside the second tower and extending in a direction different from a longitudinal direction of the second discharge port.

20. The blower of claim 19 , wherein:
the first tower includes a first inner wall curved toward the blowing space and on which the first discharge port is formed,
the second tower includes a second inner wall curved toward the blowing space and on which the second discharge port is formed, and
each of the first flow guide and the second flow guide comprises a guide inner end contacting the first inner wall or the second inner wall.

21. The blower of claim 1 , wherein the upstream end of the one of the plurality of flow guides is inclined downward with respect to horizontal direction.

22. A blower comprising:
a first case having a suction port;
a second case provided above the first case and having an inner space;
a discharge port penetrating the second case and extending in a longitudinal direction of the second case;
a fan provided inside the first case and forming an ai

Assignees

• Lg Electronics Inc

Inventors

• Kim Yongmin
• Kim Hoojin
• CHOI Chiyoung
• Park Hyungho

Classifications

• F24F13/10 Primary

  movable, e.g. dampers · CPC title

• F24F1/01 Primary

  in which secondary air is induced by injector action of the primary air · CPC title

• F24F2013/205

  Mounting a ventilator fan therein · CPC title

• F24F13/08

  Air-flow control members, e.g. louvres, grilles, flaps or guide plates (F24F7/013, F24F13/06 take precedence) · CPC title

• F04D25/08 Primary

  the working fluid being air, e.g. for ventilation · CPC title