JP3114265B2 - air purifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier having a low operating noise for sucking, purifying and circulating dirty air in a room.

[0002]

2. Description of the Related Art A conventional air purifier will be described below.

As shown in FIGS. 2 and 3, reference numeral 1 denotes a main body having an intake port 1a, 2 denotes a main body partition forming an intermediate portion, 3 denotes a rear main body, and 4 denotes a main body partition 2 and a rear main body. And a vortex chamber surrounding the electric blower including the motor 5 and the fan 6 and opening toward the exhaust port 7. A suction port 8 and a rib 9 are provided on the front surface of the main body partition wall 2.
The rib 9 supports a filter 10, which is a combination of an activated carbon filter and a charging filter, arranged on the front surface. The suction port 8 communicates with an electric blower in the main body. 11
Is a changeover switch section provided on the upper front surface of the front of the main body 1 and has a control circuit section therein. As shown in FIG. 4, reference numeral 13 denotes a tongue provided in the vortex chamber 4, a normal 15 extending from the concentric circumference 12 having an outer diameter of 85% of the outer diameter of the fan 6 toward the exhaust port 7. It is formed without protruding more.

The operation of the air purifier configured as described above will be described below. Switch 11
When the electric blower is rotated, air is sucked from the intake port 1a. The sucked air flow passes through the filter 10, where the air is purified and exhausted from the exhaust port 7.

[0005]

However, in the above-described conventional configuration, the tongue portion 13 provided inside the vortex chamber 4 is provided.
Are provided so as not to protrude from the concentric circle 12 having a size of 85% of the outer diameter of the fan 6 beyond the normal 15 to the exhaust port 7, and are generated from the outer peripheral portion of the fan 6 by the rotation of the fan 6. Loud wind noise among the driving sounds of the main body,
There is a problem that the sound is transmitted to the exhaust port 7 as it is, and the loud operation noise of the main body leaks directly from the exhaust port 7 to the outside.

An object of the present invention is to provide an air purifier in which the wind noise generated from the outer periphery of the fan due to the rotation of the fan is prevented from leaking directly to the outside from the exhaust port. With the goal.

[0007]

In order to achieve this object, an air purifier according to the present invention comprises a main body provided with an air inlet, a filter for purifying air sucked into the main body, and an air cleaner. An electric blower that sucks air, and a vortex chamber surrounding the electric blower and forming an exhaust port, wherein the tongue portion of the vortex chamber is formed from a concentric circumference having an outer diameter of 85% of the outer diameter of the fan of the electric blower. together to protrude from the normal toward the exhaust port, expanding the inclined surface to the exhaust port from said tongue portion
Ru Der what was.

[0008]

According to this configuration, the wind noise generated from the outer periphery of the fan due to the rotation of the fan is blocked by the tongs,
The wind noise is prevented from being transmitted to the exhaust port as it is. In addition, the area from the tongue to the exhaust port is an enlarged slope.
Exhaust flow, including noise going to the exhaust port,
And noise can be further reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1 showing one embodiment of the present invention, the same portions as those of the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

The basic structure of the conventional air purifier described with reference to FIGS. 2 and 3 is the same as the basic structure of the air purifier of the present embodiment, and a description thereof will be omitted.

As shown in FIG. 1, reference numeral 14 denotes a tongue provided inside the vortex chamber 4 and is connected from the concentric circumference 12 having an outer diameter of 85% of the outer diameter of the fan 6 to the exhaust port 7. It is provided so as to protrude from the normal 15. Therefore, even when the inside of the main body is viewed through the exhaust port 7 from the outside, the outer peripheral end portion of the fan 6 is obstructed by the tongue portion 14 so as to be slightly visible. Also, from the tongue portion 14 to the exhaust port 7
It has an enlarged slope.

The operation of the air purifier configured as described above will be described below. The description of the same operation as that described in the conventional example is omitted.

The wind noise generated from the outer periphery of the fan 6 due to the rotation of the fins 6 is reduced from the concentric circumference 12 having an outer diameter of 85% of the outer diameter of the fan 6 inside the vortex chamber 4 to the exhaust port 7.
Tongue portion 14 protruding from normal 15
This prevents the wind noise from being transmitted to the exhaust port 7 as it is, thereby preventing the loud operating noise of the main body from leaking directly from the exhaust port 7 to the outside.

[0015]

As is apparent from the above description of the embodiment, in the present invention, the tongue portion in the swirl chamber is extended from the concentric circumference having an outer diameter of 85% of the outer diameter of the fan of the electric blower to the exhaust port. By forming the fan so as to protrude from the normal line, an excellent air purifier can be realized in which wind noise generated from the outer periphery of the fan due to rotation of the fan is prevented from leaking directly to the outside from the exhaust port. In addition, exhaust from the tongs
Noise that goes to the exhaust port due to the enlarged inclined surface up to the vent
Exhaust flow containing air is dispersed on the expanded slope, further noise
Reduction can be realized.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main body vortex chamber of an air purifier according to one embodiment of the present invention.

FIG. 2 is a perspective view of the air purifier.

FIG. 3 is a side sectional view of the air purifier.

FIG. 4 is a sectional view of a main body vortex chamber of a conventional air purifier.

[Explanation of symbols]

 4 vortex chamber 6 fan 7 exhaust port 12 concentric circumference 14 tongue 15 normal

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B01D 46/42 F24F 7/00

Claims (1)

(57) [Claims] 1. A main body having an intake port, a filter for purifying air sucked into the main body, an electric blower for sucking air from the intake port, and an exhaust port surrounding the electric blower. comprising a vortex chamber, the tongue portion of the vortex chamber when the is projected from the normal toward the exhaust port from the concentric circumference of 85% of the outer diameter of the outer diameter of the fan of the electric blower Tomo
An air purifier having an enlarged inclined surface from the tongue portion to the exhaust port .