JPH0283012A - Air cleaner - Google Patents

Abstract

PURPOSE:To facilitate mounting work of a filter and to avoid decrease in suction quantities by forming either of an engaging protrusion or an engaging hole on an elastic piece and forming the engaging protrusion into an mountain sectional shape with both side thereof inclined relative to the direction of insertion of filter. CONSTITUTION:A mounting frame 110 is provided on the rear side of a grille 11, which forms a suction port of the main body of an air cleaner, so as to protrude therefrom, into which mounting frame 110 filters 21-23 are inserted, wherein engaging protrusions 231 are provided on the filters 21-23 and engaging holes 112 for engagement with the protrusions 231 on the frame 110 where the surfaces of the frame 110 and filters 21-23 come into contact with each other. Either one of these protrusions 231 or holes 112 are provided on an elastic piece 111 provided on the frame 110 or filters 21-23, while the protrusion 231 is formed into an angular sectional shape inclined to both side relative to the direction of insertion of filter. As a result, mounting of a filter is easily made and decrease in suction quantities is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an air cleaner having a removably attached filter.

[Conventional technology]

BACKGROUND ART Conventionally, there is an air purifier in which a grill serving as a suction port is removably attached to the front of the air purifier main body, and a filter is attached to the back of the grill.

As an example, as shown in FIG. 7, it has been proposed that a mounting frame 102 is provided protruding from the back side of a grill 101, a filter 103 is inserted into the mounting frame 102, and fixed with a band-shaped filter holder 104. ing.

[Problem to be solved by the invention]

However, when replacing the filter 103, the band-shaped filter presser 104 must be removed from the stopper 105, which is time consuming. In addition, the filter presser 104 partially blocks the back surface of the filter 103, resulting in a problem in that the amount of suction is reduced.

The purpose of this invention is to make it very easy to install the filter.
To provide an air purifier in which the amount of suction does not decrease.

[Means to solve the problem]

This invention provides an air purifier in which a mounting frame is provided protruding from the back surface of a grill forming an inlet of an air purifier main body, and a filter is inserted into this mounting frame. A locking protrusion and a locking hole are provided that lock each other, and the locking protrusion has a chevron-shaped cross-sectional shape that is inclined on both sides in the filter insertion direction.

Either the locking protrusion or the locking hole may be provided on the mounting frame side, and one of the locking protrusion or the locking hole is formed on an elastic piece provided on the mounting frame or the filter. Therefore, there are the following four types of cases.

■An elastic piece is provided on the mounting frame, and a locking hole is provided in this elastic piece. A locking protrusion is provided on the filter. ■An elastic piece is provided on the mounting frame, and a locking protrusion is provided on this elastic piece. A locking hole is provided in the filter. (2) Provide an elastic piece on the filter, and provide a locking hole in this elastic piece.

A locking protrusion is provided on the mounting frame. (2) An elastic piece is provided on the filter, and a locking protrusion is provided on this elastic piece. A locking hole is provided in the mounting frame.

[Effect]

According to the configuration of the present invention, simply by pushing the filter into the mounting frame of the grill, the locking protrusion locks into the locking hole while bending the elastic piece. This locking fixes the filter to the mounting frame. The slope of the locking protrusion facilitates the locking operation.

〔Example〕

An embodiment of the present invention will be described based on FIGS. 1 to 6.

As shown in Fig. 3, this air purifier combines a warm air section A and an air purification section B vertically, and the hot air section A and air purification section B are each divided into two housings, front and back. 1. 2 and a housing 4°5. These four housings 1 to 4 constitute an air purifier main body 100.

The hot air section A has a discharge port lattice 3 formed with hot air discharge ports 3a on one side of the front surface, and the discharge port lattice 3 is provided in line with the discharge port lattice 3.
A decorative lattice 3' having a similar shape is provided on the other side. The discharge port lattice 3 includes a pair of support walls 3b protruding from the housing 1.
It is supported by a shaft and can be tilted up and down, allowing the direction of hot air to be adjusted.

The air purifying section B has a grill 11 having an inlet 11a formed thereon attached to the front surface, and a clean air outlet 10a and a switch operation panel 14 provided on the arcuate upper surface.

The switch operation panel 14 includes a warm air section operation section 8 and an air purification section operation section 9, including a warm air changeover switch SW1, an air purification changeover switch SW, and lamps 8b to 8e for each display.
9b and 9c are provided. An entry detection sensor 13 is provided at the front of the air l# purifying section B to detect the entry of a person and automatically operate the room.

Handles 6 are attached to both sides of the air cleaning section B via handle stops 7.

FIG. 1 is an exploded perspective view of the grill 11. The grille 11 has a mounting frame 110 integrally protruding from its back surface, located slightly inside the outer periphery, and a pre-filter 21, a dust removal filter 22, and a deodorizing filter 23 are fitted into the mounting frame 110 in this order. . The pre-filter 21 is for removing coarse dust. The dust removal filter 2 is made of a thin fibrous filter element made of polyurethane, etc., and removes fine smoke particles by attaching them to the filter element. The deodorizing filter 23 removes odors, and has a filter frame 230 filled with granular filter elements 232 (Fig. 6).The filter elements are made of conductive activated carbon impregnated with a deodorizing agent. The information entered in the document will be used.

As shown in FIG. 1, the mounting frame 110 of the grill 11 has elastic pieces 111 formed by making two cuts in the center of each of the lower side and the upper piece.
This is provided. Locking protrusion 2 that locks into this locking hole 112
31 is provided to protrude from the outer peripheral surface of the filter frame 230 of the deodorizing filter 23. The locking protrusion 231 has a triangular chevron cross-sectional shape that is inclined on both sides in the filter insertion direction. The engagement between the locking protrusion 231 and the locking hole 112 fixes the deodorizing filter 23 to the mounting frame 110. Prefilter 2
1 and the dust removal filter 22 are held by a deodorization filter 23.

The mounting frame 110 further includes a main body locking piece 11b for fixing to the air purifier main body 100, and a notch 113 for removing the filter.
and is formed. Further, an entrance sensor window 114 is provided at the lower part of the grill 11, and the hook 12 is screwed and fixed to the upper end via a leaf spring 26.

FIG. 4 shows the internal structure of the entire air purifier. grill 11
, the lower main body locking piece 11b is inserted into the locking hole 5 of the housing 5.
1 and the locking claw 12 of the upper hook 12
It is fixed to the housing 5 by locking it into the locking hole 50 of the housing 5.

A fan 19 serving as a ventilation means is provided inside the air cleaning section B, and a motor 18 for driving the fan 19 is fixed to the housing 5. The fan 19 is attached to the output shaft of the motor 18 with a NAND 20. A bell mouth 5a opening to the fan 19 is formed in the front housing 5. A discharge port grid 10 having clean air discharge ports 10a formed therein is mounted on the upper part of the air cleaning section B by sandwiching it between the front and rear housings 4.5. A control circuit block 24 mounted on a printed circuit board is disposed below the air passage portion of the air cleaning section B, and a power transformer 35 is disposed on the side thereof.

The hot air section A has a built-in heater 27 and a fan (not shown), and has a power cord 17 pulled out from the rear. An adjuster 87 for adjusting the inclination is attached to the bottom of the hot air section A with a nut 28.
The floor abutting member 31, which serves as a detector of the fall detection device 70, is attached so as to be movable up and down.

According to this configuration, when attaching each of the filters 21 to 23 with the grill 11 removed as shown in FIG. 1, the prefilter 21. Dust removal filter 22. and the deodorizing filter 23 are housed in the mounting frame 110 of the grill 11 in this order. When the deodorizing filter 23 is pushed into the mounting frame 110, the locking protrusion 231 bends the elastic piece 111 of the mounting frame 110 and engages with the locking hole 112 of the elastic piece 111. Since the locking protrusion 231 has a cross-sectional shape inclined in the filter insertion direction, it easily slides on the surface of the elastic piece 111 and engages with the locking hole 111.

In this way, the locking protrusion 231 is locked by simply pushing it in, and the deodorizing filter 23 is fixed to the grill 11. Therefore, the deodorizing filter 23 can be easily attached, and it is convenient to use because it does not take much time to replace the filter. Since the locking protrusions 231 are inclined on both sides in the insertion direction,
There is no directionality for the deodorizing filter 23, making installation even easier. Since the pre-filter 21 and the dust removal filter 22 are held by the deodorizing filter 23, no fixing work is required.

When removing the filters 21 to 23, the filters 21 to 23 can be easily removed by hooking a finger onto the deodorizing filter 23 through the filter removal notch 113 of the mounting frame 110.

In addition, in this filter mounting structure, the elastic piece 111 of the mounting frame 110 and the locking protrusion 231 on the outer peripheral surface of the deodorizing filter 23
Since the locking means does not block the back surface of the deodorizing filter 23, the amount of air sucked does not decrease.

In addition, in the above embodiment, the pre-filter 21, the dust removal filter 22, and the deodorizing filter 23 are provided, but
It is also possible to provide only one filter.

Further, in the embodiment described above, the locking protrusion 231 has a triangular chevron shape, but it may also have a trapezoidal chevron shape or a curved chevron shape.

Furthermore, the locking protrusion 231, the locking hole 112, and the elastic piece Ill
In addition to this embodiment, combinations with 1 to 3 can be made as shown in the section ``Means for Solving Problems''.

〔Effect of the invention〕

In the air purifier of the present invention, a mounting frame for inserting a grille filter and the filter are provided with a locking projection and a locking hole that lock each other, and one of the locking projection and the locking hole is formed into an elastic piece. In addition, since the locking protrusion has a chevron cross-sectional shape that is inclined on both sides in the filter insertion direction, the locking protrusion and the locking hole engage with each other by simply pushing the filter into the mounting frame, and the filter is fixed. Therefore, installing the filter is very easy. Since the locking protrusions are inclined on both sides in the insertion direction, there is no directionality between the front and back of the filter, making attachment of the filter even easier. In addition, since the mounting frame and the filter are locked by the locking protrusion and the locking hole on the fitting surface, the locking means does not block the back side of the filter and does not reduce the amount of air sucked in. There is an effect.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the grille in an air purifier according to an embodiment of the present invention, Fig. 2 is a perspective view of the grille in an assembled state, and Fig. 3 is a perspective view of the entire air purifier. Fig. 4 is a cutaway side view of the same, Fig. 5 is a perspective view of the locking part between the mounting frame and the filter, Fig. 6 is a sectional view of the same part, and Fig. 7 is a perspective view of the conventional example. . 11...Grill, 21...Prefilter, 22...
・Dust removal filter, 23... Deodorant filter, 100...
・Air purifier body, 110...Mounting frame, 111...
Elastic piece, 112... Mounting hole, 231... Locking protrusion 1
]4 Figure Figure Figure Figure

Claims (1)

[Claims] A mounting frame is provided protruding from the back side of the grill that forms the suction port of the air purifier main body, a filter is inserted into this mounting frame, and one of the mounting frame and the filter is inserted at the fitting surface of the mounting frame and the filter. A locking protrusion is provided on the other side, and a locking hole that engages with the locking protrusion is provided on the other side, one of the locking protrusion and the locking hole is formed on an elastic piece provided on the mounting frame or the filter, and the locking protrusion An air purifier with a chevron-shaped cross-section that slopes on both sides of the filter insertion direction.