Blower having first and second towers and a motor housing supporter arrangement

Patent metadata

Field	Value
Publication number	US-12196221-B2
Application number	US-202318385488-A
Country	US
Kind code	B2
Filing date	Oct 31, 2023
Priority date	Sep 15, 2021
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

The present disclosure relates to a blower. The blower according to an aspect of the present disclosure includes: a lower case in which a suction port is formed; a fan disposed inside the lower case and blowing air introduced through the suction port upward; a first tower elongated to an upper side from the lower case and formed with a first discharge port opening forward; a second tower spaced apart from the first tower in a horizontal direction, elongated to an upper side from the lower case, and formed with a second discharge port opening forward; an air guide disposed inside the first tower and spaced apart from a front end of the first tower and elongated along a front and rear direction toward the first discharge port; and a handle disposed between the fan and the air guide and elongated from upstream of the air guide toward the front end of the first tower. The handle is disposed between the fan and the air guide, so that the blowing performance of the blower can be enhanced.

First claim

What is claimed is:

1. A blower which includes:
a lower case formed with a suction port;
a fan disposed inside the lower case;
a fan motor disposed in an upper side of the fan;
a motor housing that is spaced apart from an inner side of the lower case and surrounds the fan motor;
a diffuser disposed between a circumference of the motor housing and the lower case;
a first tower disposed above the lower case, elongated upwardly, formed with a first discharge port, and including a first inner wall at which the first discharge port is disposed;
a second tower disposed above the lower case, spaced apart from the first tower, elongated upwardly, formed with a second discharge port, and including a second inner wall facing the first inner wall and at which the second discharge port is disposed;
a blowing space formed between the first inner wall and the second inner wall facing each other, wherein air discharged from the first and second discharge ports flows;
a tower base disposed between the lower case and the first and second towers so as to connect to each other, communicating an inner space of the lower case with the first and second towers, and including a bridge connecting the first inner wall and the second inner wall;
a supporter disposed inside the tower base, and connecting a vicinity of a center of the bridge in a front-rear direction and the motor housing.

2. The blower of claim 1 , wherein the supporter includes an elongation part elongated laterally from a lower portion of the supporter, and
wherein the elongation part is connected to an upper portion of the motor housing.

3. The blower of claim 2 , wherein a cross-sectional area of the elongation part corresponds to a cross-sectional area of the upper portion of the motor housing.

4. The blower of claim 2 , wherein the supporter has a narrower cross-sectional area toward an upper side.

5. The blower of claim 1 , further including a handle disposed in the tower base, and having an inner surface protruded inward and an outer surface opposite to the inner surface and opened to an outer side to form a gripping space, and
wherein the supporter includes a first surface facing the handle, and a second surface disposed in an opposite side of the first surface, and
the first surface is inclined at a first angle toward the second surface.

6. The blower of claim 5 , wherein the second surface of the supporter is inclined at a second angle toward the first surface, and wherein the first angle is greater than the second angle based on a vertical axis (Z).

7. The blower of claim 1 ,
wherein the first tower, the second tower, and the blowing space form a continuous surface with the lower case.

8. The blower of claim 7 , wherein the continuous surface is a truncated cone whose cross-sectional area becomes narrower toward an upper side.

9. The blower of claim 1 , wherein the bridge is concaved downward.

10. The blower of claim 9 , wherein the supporter includes a first protrusion elongated upward from an upper portion of the supporter, and a second protrusion elongated upward from an upper portion of the supporter and spaced apart from the first protrusion, and
wherein a portion of the bridge is inserted between the first protrusion and the second protrusion.

11. The blower of claim 9 , wherein a center portion of the bridge extends downward so as to be connected to the supporter,
wherein the blower further comprising a handle disposed at the tower base, and having one surface protruded inward and the other surface opened to an outer side to form a gripping space, and
wherein the one surface of the handle comprising a sloped surface inclined upwardly to the supporter, and an imaginary line extended from the sloped surface passes through a point where the bridge and the supporter connect.

12. The blower of claim 11 , further comprising an accelerating channel formed between an upper surface of the motor housing and the sloped surface of the handle,
wherein an airflow passing the diffuser moves toward the supporter through the accelerating channel, and
wherein a width of the accelerating channel is smaller than a width of the diffuser.

13. The blower of claim 1 , wherein ends of the first and second towers are separated from each other, the ends of the first and second towers being opposite ends from the tower base.

Assignees

• Lg Electronics Inc

Inventors

• Ku Myungjin
• Yoon Juhyup
• Lee Kunyoung
• Kim Bohyun

Classifications

• F04F5/16

  displacing elastic fluids · CPC title

• F04D29/44

  Fluid-guiding means, e.g. diffusers · CPC title

• F04D25/084 Primary

  hand fans · CPC title

• F04D29/441

  especially adapted for elastic fluid pumps · CPC title

• F24F13/26

  Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect · CPC title