Blower

Patent metadata

Field	Value
Publication number	US-11624369-B2
Application number	US-202117318274-A
Country	US
Kind code	B2
Filing date	May 12, 2021
Priority date	May 14, 2020
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A blower includes a first extension having a first discharge port formed in a first wall, a second extension having a second discharge port formed in a second wall facing and spaced apart from the first wall, a fan provided below the first and second extensions to guide air toward each of the first tower and the second tower, a first gate provided inside the first tower or protruding from the first wall, a second gate provided inside the second tower or protruding from the second wall, a first guide motor to change a position of the first gate, and a second guide motor to change a position of the second gate.

First claim

What is claimed is:

1. A blower, comprising:
a first tower having a first wall;
a second tower having a second wall facing the first wall and spaced apart from the first wall to form a blowing space therebetween,
a first discharge port formed in the first wall and configured such that air flowing through the first discharge port is discharged to the blowing space;
a second discharge port formed in the second wall and configured such that air flowing through the second discharge port is discharged to the blowing space and joined with the air discharged from the first discharge port to create an air flow in a first direction;
a fan provided below the first and second towers and configured to guide air toward the first and second towers;
a first gate provided inside the first tower at a position spaced apart from the first discharge port;
a second gate provided inside the second tower at a position spaced apart from the second discharge port;
a first motor configured to change a position of the first gate to guide at least some of the air flowing in the first direction to flow in a second direction; and
a second motor configured to change a position of the second gate to guide at least some of the air flowing in the first direction to flow in the second direction.

2. The blower of claim 1 , wherein the first motor is configured to move the first gate to be completely inside the first tower or to protrude from the first wall into the blowing space, and the second motor is configured to move the second gate to be completely inside the second tower or to protrude from the second wall into the blowing space.

3. The blower of claim 1 , wherein the first motor and the second motor are individually operated.

4. The blower of claim 1 , wherein each of the first wall and the second wall have a convex curvature such that the first wall is curved toward the second wall and the second wall is curved toward the first wall.

5. The blower of claim 4 , further comprising:
a first slit provided on the first wall through which the first gate moves; and
a second slit provided on the second wall through which the second gate moves, wherein a first distance between centers of the first wall and the second wall is shorter than a second distance between the first discharge port and the second discharge port, and the first distance is also shorter than a third distance between the first slit and the second slit.

6. The blower of claim 1 , wherein each of an end of the first wall provided downstream of the air flowing in the first direction and an end of the second wall downstream of the air flowing in the first direction forms an inclination angle in a direction away from a virtual center line passing through centers of the first tower and the second tower.

7. The blower of claim 1 , wherein the first discharge port has a shape configured to allow air discharged from the first discharge port to flow along the first wall, and the second discharge port has a shape configured to allow air discharged from the second discharge port to flow along the second wall.

8. The blower of claim 1 , further comprising:
a first guide provided inside the first tower to guide a movement of the first gate; and
a second guide provided inside the second tower to guide a movement of the second gate.

9. The blower of claim 8 , wherein the first guide includes:
a fixed guide fixed inside the first tower;
a movement guide which is provided on a first surface of the first gate and configured to move relative to the fixed guide; and
a rack connected to the first motor and provided on a second surface of the first gate to move the first gate, the first and second surfaces being opposite to each other.

10. The blower of claim 1 , wherein, in a first mode configured to facilitate air flow in the first direction, the first and second motors are operated such that each of the first gate and the second gate are provided inside the first tower and the second tower.

11. The blower of claim 1 , wherein in a second mode configured to facilitate air flow in the second direction, the first and second motors are operated such that an end of the first gate is in contact with an end of the second gate.

12. The blower of claim 1 , wherein in a third mode configured to facilitate air flow that is biased to a side with respect to a center of the blowing space, the first and second motors are operated such that a protruding length of the first gate in the blowing space is different from a protruding length of the second gate.

13. The blower of claim 12 , wherein in the third mode, the first motor is operated such that the first gate protrudes into the blowing space, and the second motor is operated such that the second gate is provided inside of the second tower so as not to protrude into the blowing space.

14. The blower of claim 1 , wherein in a fourth mode configured to continuously change an air flow direction, the first and second motors are operated such that the first gate and the second gate are alternately protruded into the blowing space.

15. The blower of claim 14 , wherein in the fourth mode, wherein the first and second motors are operated such that, when the first gate is protruded from the first wall into the blowing space, the second gate is provided inside the second tower so as not to protrude into the blowing space, and when the second gate is protruded from the second wall into the blowing space, the first gate is provided inside the first tower so as not to protrude into the blowing space.

16. The blower of claim 14 , wherein in the fourth mode, the first and second motors are operated such that, when a protruding length of the first gate into the blowing space is changed, the second gate is provided inside the second tower so as not to protrude into the blowing space, and when a protruding length of the second gate into the blowing space is changed, the first gate is provided inside the first tower so as not to protrude into the blowing space.

17. The blower of claim 14 , wherein in the fourth mode, the first and second motors are operated such that a distance between the first gate and the second gate is maintained during a movement of the first and second gates.

18. The blower of claim 14 , wherein in the fourth mode, the first and second motors are operated such that, when a protruding length of the first gate into the blowing space increases, a protruding length of the second gate into the blowing space decreases, and when the protruding length of the second gate increases, the protruding length of the first gate decreases.

19. A blower, comprising:
a lower case having an inlet;
an upper case provided above the lower case; and
a fan configured to suction air through the inlet and discharge air into an inner space of the upper case, the upper case including:
a first tower having a first outlet and a first slit,
a second tower spaced apart from the first tower and having a second outlet and a second slit, wherein outer surfaces of the first and second towers are curved,
a first gate which is curved,
a first motor configured to move the first gate through the first slit,
a second gate which is curved, and
a second motor configured to move the second gate through the second slit, wherein positions of the first and second slits are configured such that the first and second slits are downstream of air discharged out of the first and second outlets.

20. The blower of claim 19 , wherein a bottom of the upper case has a discharge port and a plur

Assignees

• Lg Electronics Inc

Inventors

• Jung Jaehyuk
• Kim Kidong
• Kim Hoojin
• Jung Haein
• Choi Seokho
• Park Hyungho
• Kim Yongmin
• CHOI Chiyoung

Classifications

• F04D25/10

  the unit having provisions for automatically changing direction of output air · CPC title

• F04D29/524

  shiftable members for obturating part of the flow path · CPC title

• F04F5/44

  Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42 · CPC title

• F24F8/10

  by separation, e.g. by filtering · CPC title

• F04F5/466

  with a plurality of nozzles arranged in parallel · CPC title