KR20190001010U - Fan unit and electric fan assembly with the same - Google Patents

Abstract

The present invention relates to a fan unit for an electric fan and a fan having the fan unit, which can be used as an air cleaner in a conventional fan only by a simple fan replacement method.
The fan unit for an electric fan according to the present invention comprises: a lower disk (10) having an air inflow hole formed in a central region thereof; A dust filter (20) provided along the circumference of the lower disk on the lower disk; A suction unit (30) provided on the lower disk in a structure surrounded by the dust filter; An upper disc (60) disposed on the dust filter; A fastener (40) provided on the center of the lower disk so that an elongated hole is located; An elongated hole (41) formed through the fastener along the height direction of the fastener; And a pair of recessed grooves (45) symmetrically formed on the upper surface or the lower surface of the fastener with respect to the elongated hole.

Description

TECHNICAL FIELD [0001] The present invention relates to a fan unit for a fan, and a fan assembly having the fan unit.

The present invention relates to a fan unit and a fan thereof, and more particularly, to a fan unit for a fan unit and a fan assembly having the fan unit, which can function as an air cleaner.

The fan is a device that provides the coolness by generating the wind, and the price is cheap and efficient, and it is widely used. This type of fan is mainly used in the summer season when the temperature is high, and it has the characteristics of seasonal home appliances which are not used for the season when the temperature is lowered and are stored in a separate place.

In recent years, air purifiers have been widely used to purify indoor air from fine dust and various noxious gas environments. However, in order to purify air in a common household environment, a relatively expensive air purifier has to be purchased.

Therefore, if the fan, which is commonly used in most households, can be also used as an air cleaner, it is possible to simultaneously solve both the seasonality of the fan use application and the cost problem of the conventional air cleaner, The effect can be significant.

[0003] As a conventional fan having an air cleaning function, the following configuration is disclosed. Korean Patent Laid-Open No. 10-2006-0061418 discloses an electric fan in which a charged film type filter is attached to a rear surface of a rotary blade, that is, a rear surface of a protective net, to impart an air cleaning function to a general fan, 10-2004-0093359 discloses an electric fan in which an adsorption deodorizing filter such as zeolite is detachably attached to a protective net.

However, since all of the conventional air cleaners having the air cleaning function adopt a system in which the air purifying filter is detachably attached to the protective net of the fan, sufficient wind pressure can not be generated on the surface of the filter, There was this little problem. As a result, the conventional air cleaner having an air purifying function has a problem in that the air volume reduction by the filter becomes large, and the performance of removing fine dust and noxious gas is insufficient, which is unsuitable as an air purifier as well as an original function of a fan.

Korean Patent Publication No. 10-2006-0061418 (published date: 2006.06.08) Korean Patent Laid-Open No. 10-2004-0093359 (public date: November 11, 2004)

It is an object of the present invention to provide a fan unit for an electric fan and a fan assembly having the fan unit, which can transfer a conventional fan to an air cleaner only by a simple fan replacement method.

It is another object of the present invention to provide a fan unit for an electric fan capable of generating a high wind pressure in a dust-collecting filter and an adsorption filter passage, and capable of realizing the same level of air purifying performance as a normal air cleaner, .

According to an aspect of the present invention, there is provided a fan unit for an electric fan, comprising: a lower disk having an air inlet hole formed in a central region thereof; A dust filter disposed on the lower disk along the circumference of the lower disk; A suction unit provided on the lower disk in a structure surrounded by the dust filter; An upper disc disposed on the dust filter; A fastener provided on the center of the lower disk to have a long hole; An elongated hole formed through the fastener along a height direction of the fastener; And a pair of recessed grooves formed on an upper surface or a lower surface of the fastener in an inter-symmetrical structure about the long hole.

The elongated hole formed in the fastening hole is configured to have a long axis length of less than 80 mm at maximum and a diameter of at least 4 mm.

According to the present invention, a fan unit for an electric fan can realize both a wind-blowing function and a high-performance air-cleaning function by simply installing a fan unit in a fan, which is commonly used in daily life. It is possible to use the air purifying function of the ordinary air purifier at a relatively low cost without purchasing or supplying a separate air purifier. Therefore, according to the fan unit for an electric fan according to the present invention and the electric fan having the fan unit, the user convenience and economical efficiency can be greatly improved.

Further, the fan unit for the fan according to the present invention can firmly mount and fix the dust filter between the upper and lower discs without using a separate adhesive, and it is possible to reduce the production cost and process time by omitting the adhesive There is an effect.

1 is a plan view of a lower disk of a fan unit for an electric fan according to the present invention;
2 is a perspective view of a fan unit for an electric fan according to the present invention;
FIG. 3 is a state in which the upper disk is coupled to the fan unit for the fan of FIG. 2. FIG.
4 is a plan view showing still another embodiment of a dust collecting filter and a suction unit according to the present invention.
FIG. 5 is a plan view showing a structure of an adsorbing portion divided into a plurality of regions by barrier ribs according to the present invention; FIG.
6 is a side view showing a motor and a drive shaft of a fan according to the present invention;
7 is an upper side view showing a fastener according to the present invention, an elongated hole formed therein, and first, second, and third recessed portions.
8 (a), 8 (b) and 8 (c) are cross-sectional views of fasteners for explaining the characteristics of the first, second and third concave portions according to the present invention.
FIG. 9 (a) is a plan view of an upper disk having an upper inner and outer jaws and an upper elastic foam according to the present invention. FIG.
9 (b) is a plan view of the lower disk with the lower inner and outer jaws and the lower elastic foam according to the present invention.
10 (a) is a cross-sectional view taken along line AA 'of FIG. 9 (a) showing a state in which the dust filter is disposed on the lower surface of the upper elastic foam.
10 (b) is a cross-sectional view taken along the line BB 'in FIG. 9 (b) showing a state in which the dust filter is disposed on the upper surface of the lower elastic foam.
11 is an exploded perspective view of a fan having a fan unit according to the present invention.
12 is an upper cross-sectional view of a fan having a fan unit according to the present invention;
13 is an upper cross-sectional view of a fan having a fan unit according to another embodiment of the present invention;
14 is an upper cross-sectional view of a fan having a reflector according to the present invention.
15 is a plan view of a fan unit further comprising a blade according to the present invention;
16 is a perspective view of a fan unit further comprising a wing plate according to the present invention;

The terminology used in this specification is used only to describe a specific embodiment and is not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, in the present specification, the term " above or above " means to be located above or below the object portion, and does not necessarily mean that the object is located on the upper side with respect to the gravitational direction. It will also be understood that when a section of an area, plate, or the like is referred to as being " above or above another section ", this applies not only to the case where the other section is " And the like.

Also, in this specification, when an element is referred to as being " connected " or " connected " with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

Also, in this specification, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Hereinafter, preferred embodiments, advantages and features of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view of a lower disk of a fan unit for an electric fan according to the present invention, FIG. 2 is a perspective view of a fan unit for an electric fan according to the present invention, to be.

1 to 3, the fan for a fan according to the present invention includes a lower disk 10, a dust collecting filter 20, a suction unit 30, an upper disk 60, a fastener 40, a long hole 41 , A first recessed trench (45), and a support base (50).

The lower disk 10 of the present invention is a base plate for supporting the dust collecting filter 20 and the adsorbing portion 30 so as to face the upper disk 60 with the dust collecting filter 20 and the adsorbing portion 30 interposed therebetween .

The lower disk 10 is connected to the motor 1 of the fan through a fastener 40 and receives rotational force from the motor 1 so that the lower disk 10 is rotated counterclockwise about its center.

According to a preferred embodiment of the present invention, the lower disk 10 is formed with an air inflow hole 15 penetrating through its central region, so that the air introduced through the air inflow hole 15 when the lower disk 10 rotates And is moved toward the suction portion 30 and the dust filter 20 side by the car.

According to a preferred embodiment, the lower disk 10 may be constituted by an annular plate (that is, a ring shape) in which a circular air inflow hole 15 is open at the center, and the material thereof may be made of a plastic material have.

As another embodiment, the lower disk 10 may be configured as a circular plate (i.e., a disk), and a plurality of air inflow holes 15 may be formed through the disk. In this case, the air inflow hole 15 may be formed in various shapes such as circular, arcuate, and polygonal.

The dust filter 20 of the present invention is a filter for filtering harmful fine particles in the air flowing through the air inflow hole 15 of the lower disk 10 and is provided on the lower disk 10, Along the periphery, and may be installed in a single-layer or multi-layer structure.

According to one embodiment, the dust-collecting filter 20 may be formed in a structure in which both surfaces of the dust-collecting filter 20 are repeatedly bent in a zigzag manner on the inner surface of the lower disk 10 as in the embodiment of FIG. In this case, the dust-collecting filter 20 has a waveform shape in which the concavo-convex shape is repeated along the circular periphery of the lower disk 10.

4 is a plan view showing still another embodiment of a dust collecting filter and a suction unit according to the present invention. According to another embodiment, the dust-collecting filter 20 may be formed in a circular shape along the periphery on the outer circumferential portion of the lower disk 10 as in the embodiment of FIG.

The dust-collecting filter 20 may be a filter having a plurality of micropores. The material of the dust-collecting filter 20 may be a variety of materials such as nonwoven fabric, paper, cloth, metal mesh, sponge, and ceramic.

If the elastic foam 80 to be described later is applied as means for fixing the dust filter 20 between the upper disk 60 and the lower disk 10, the dust filter 20 may be a nonwoven filter or a hepafar filter It is preferable to use a filter composed of irregularly arranged fiber structures such as a HEPA filter. A detailed description thereof will be described later in the elastic foam 80 section.

The adsorbing portion 30 of the present invention is provided on the lower disk 10 in a structure surrounded by the dust filter 20 to capture or adsorb the fine particles and remove odors.

According to an embodiment, when the dust filter 20 has a waveform structure as shown in FIG. 2, a plurality of space portions are provided on the inner side of the dust filter 20 due to the repeated irregular shape of the dust filter 20 And the adsorbing portion 30 are filled in the space portion and are surrounded by the dust filter 20, respectively.

4, when the dust collecting filter 20 is installed on the outer circumferential portion of the lower disk 10 as another embodiment (hereinafter referred to as a "second embodiment"), the suction portion 30 May be filled in the inner space defined by the dust filter 20 and surrounded by the dust filter 20.

When the dust collecting filter 20 and the adsorption unit 30 are constructed in the structure of the second embodiment described above, the fan unit of the present invention further includes a plurality of partition walls 70 to improve the air purification performance and efficiency .

FIG. 5 is a plan view showing a structure of an adsorbing portion divided into a plurality of regions by barrier ribs according to the present invention. FIG. Referring to FIG. 5, a plurality of barrier ribs 70 may be formed on one surface of the lower disk 10 to have a radial structure with respect to the center of the lower disk 10. 5, the partition wall 70 is formed in a radial structure in which the partition wall 70 is formed around the air inlet hole 15 of the lower disk 10.

In addition, the adsorption unit 30 is filled in the space between the plurality of partition walls 70 provided by the neighboring partition walls 70, respectively. Accordingly, the adsorbing part 30 is physically divided into a plurality of areas by the plurality of partition walls 70 as a whole.

If the suction part 30 is formed in a divided structure using the partition 70 as described above, the air cleaning efficiency and performance of the fan can be improved. This is because the air inflow hole 15 of the lower disk 10 It is possible to prevent a part of the air flowing into the adsorption unit 30 from passing through the adsorption unit 30 and being not discharged to the outside. In other words, it is possible to prevent a phenomenon that a part of the air introduced into the adsorption section 30 is swung in the adsorption section 30 due to the rotational force of the fan (i.e., the adsorption section 30) It is possible to purify more air per hour.

The adsorption part 30 may be made of at least one selected from the group consisting of activated carbon, zeolite, alumina, activated alumina gel and polymeric carrier, and the shape thereof may be selected from powder, pellet, powder compact, porous compact, fiber, sponge, It can be formed in any one of the forms.

The upper disc 60 of the present invention is disposed on the dust filter 20 and serves as a finishing cover for shielding the dust filter 20 and the upper portion of the suction unit 30 from the outside. The dust filter 20 and the suction unit 30 The lower disk 10 and the lower disk 10 can be mounted to each other.

The upper disc 60 is connected to the motor 1 of the fan through a fastener 40 and configured to rotate counterclockwise about the center of the lower disc 10 together with the lower disc 10.

According to a preferred embodiment of the present invention, the upper disk 60 has an air inlet hole 65 penetrating the central area thereof, so that the air introduced through the air inlet hole 65 when the upper disk 60 rotates And is moved toward the suction portion 30 and the dust filter 20 side by the car.

According to a preferred embodiment, the upper disc 60 may be formed of an annular plate (i.e., ring shape) in which a circular air inflow hole 65 is open at the center, and the material thereof may be a plastic material have.

As another embodiment, the upper disk 60 may be formed of a circular plate (i.e., a disk), and a plurality of air inflow holes 65 may be formed through the disk. In this case, the air inlet hole 65 may be formed in various shapes such as circular, arcuate, and polygonal.

On the other hand, the upper disk 60 may be formed as a plate without an air inflow hole (refer to FIG. 13).

The fastener 40 of the present invention is configured to interlock the rotation drive of the fan motor 1 with the fan of the fan and the lower disk 10 is configured to be connected to the drive shaft 2 of the fan motor 1.

According to one embodiment, the fasteners 40 may be connected and secured to the lower disk 10 via a support 50, as in the embodiment of FIG. In this case, the fastener 40 is formed in a cylindrical shape and is located at the center of the lower disk 10, that is, the center of the circular air passage hole, and the long hole 41 of the fastener 40 is positioned at the center of the lower disk 10 Axis.

According to another embodiment, the fastener 40 may be connected and secured to the upper disk 60 via the support 50. The upper disk 60 is formed of a circular or annular plate and the fastener 40 is positioned at the center of the circular or annular plate and is inserted into the elongated hole 41 of the fastener 40, And the center axis of the lower disk 10 are all aligned on the same line.

The long hole 41 of the present invention is configured to be substantially engaged with the drive shaft 2 of the fan motor 1 and has a hollow structure formed through the fastener 40 along the height direction of the fastener 40. Here, the height direction of the fastener 40 refers to the longitudinal direction of the drive shaft 2 with reference to a state in which the fastener 40 is coupled to the drive shaft 2 of the motor 1. [

According to a preferred embodiment, the fastener 40 is formed in a cylindrical shape, and the elongated hole 41 is formed in the central axis of the cylindrical fastener 40 so that the central axis of the lower disc 10, the fastener 40, And the center axis of the elongated hole 41 are all located on the same line.

Such a long hole 41 is configured to have a long axis length of less than 80 mm and a diameter of at least 4 mm. The reason for this is as follows. Prior to the description, the "long axis length L1 of the motor drive shaft 2" referred to in the present invention is defined as follows.

6 is a side view showing a motor and a driving shaft of the fan according to the present invention. A conventional fan motor 1 is provided with a drive shaft 2 protruding from the front surface of the motor 1 and coupled with a fan of a conventional fan. At the rear end of the drive shaft 2, a pair of latches 3 are symmetrical And a threaded portion 4 is formed at the front end thereof. In this threaded portion 4, the tightening cap 6 is screwed so that the conventional fan is fixedly coupled to the drive shaft 2. [ The length of the long axis L1 of the motor drive shaft 2 is the length of the entire length of the drive shaft 2 from the fastener 3 to the tip of the threaded portion 4 (that is, one end of the drive shaft 2) Length.

The upper and lower discs 10 of the present invention are connected to the fan motor 1 through a fastener 40 and receive the rotational force of the motor 1. The fastener 40 is connected to the motor Is connected to the drive shaft (2) of the motor (1). In the case of most electric fans currently produced and sold for home or business, the major axis length L1 of the motor drive shaft 2 is within the range of 30 to 80 mm. When the driving shaft 2 of the fan motor 1 is inserted into the elongated hole 41 of the fastening hole 40, the threaded portion 4 of the driving shaft 2 passes through the elongate hole 41 and passes through the fastening hole 40, So that the tightening cap 6 can be fastened to the threaded portion 4. Therefore, in consideration of the drive shaft 2 (i.e., 80 mm) having the longest axial length L1 of the longest, the long hole 41 of the fastener 40 should be formed to have a long axis length of less than 80 mm at most, The threaded portion 4 can protrude outside the elongated hole 41 (i.e., outside the fastening hole 40) when the drive shaft 2 is engaged.

In the case of most fans currently being produced and sold for home or business, the outer diameter of the motor drive shaft 2 is in the range of 4 to 10 mm. Therefore, when the drive shaft 2 (4 mm) having the smallest outer diameter is considered, the fastening hole 40 must have an inner diameter exceeding 4 mm at least so that the drive shaft 2 of the fan motor 1 So that it can be inserted into the long hole 41.

The first recessed groove portion 45 of the present invention is an engaging groove 3 formed in an upper surface or a lower surface of the fastening hole 40 in a mutually symmetrical structure about the long hole 41, The pair of latches 3 protruding from the rear end of the drive shaft 2 are inserted and coupled to the first yaw groove portion 45 when the drive shaft 2 of the fan motor 1 is inserted into the drive shaft 2,

The rotational force of the drive shaft 2 can be transmitted to the fastener 40 by the engagement between the first yaw groove portion 45 and the fastener 3 so that when the fan is turned on, The fastener 40 is rotated, thereby causing the upper and lower discs 10 to rotate. Thus, the fan unit of the present invention can perform the wind and air cleaning function.

According to a preferred embodiment, the fan unit of the present invention may further include a second yaw groove portion 46 and a third yaw groove portion 47 in addition to the first yaw groove portion 45.

FIG. 7 is an upper side view showing a fastener according to the present invention, an elongated hole formed therein, first, second and third recessed portions, and FIGS. 8 (a), (b) and (c) 3 is a cross-sectional view of the fastening hole for explaining the features of the three recessed portions.

Referring to FIGS. 7 and 8, the second concave portion 46 is an engaging groove 3 formed in an upper surface or a lower surface of the fastener 40 so as to be symmetrical about the long hole 41, Is the same as the first recessed portion. The first recessed portion 45 and the second recessed portion 46 are characterized in that the depths P1 and P2 of the recesses are different from each other.

In other words, the bottom B2 of the second yaw groove 46 and the bottom B1 of the first yaw groove 45 are located at different heights with respect to the one end C1 of the long hole 41 . 8, the bottom B1 of the first yaw groove 45 is located at a height of 'H1' from one end C1 of the long hole 41 and the bottom B2 of the second yaw groove 46, H2 " from one end C1 of the long hole 41. As shown in Fig.

As the depth of the recessed portion becomes deeper, the bottom surface of the recessed portion becomes closer to the tip K1 of the fastening member 40 (i.e., the lower plate). 8, the depth P2 of the second recessed portion 46 is deeper than the depth P1 of the first recessed portion 45, and the depth B2 of the second recessed portion 46 is larger than the depth P1 of the second recessed portion 46, Is closer to the tip of the fastening hole 40 than to the bottom face B1 of the first recessed trench 45 or to the lower plate 10.

Further, the fan unit of the present invention may further include a third recessed groove, ... Nth recessed portion. In this case, the third concave portion 47 is an engaging groove for engaging the third engaging recess 40 formed on the upper surface or the lower surface of the fastener 40 in a symmetrical structure about the long hole 41, 45).

The depths P1, P2 and P3 of the recesses are different from each other in the first recessed portion 45, the second recessed portion 46, the third recessed portion 47, ..., and the Nth recessed portion . 8, the depths P1, P2 and P3 of the grooves are deeper in the order of the first recessed portion 45, the second recessed portion 46 and the third recessed portion 47, The height H1, H2, and H3 of the first, second, and third bushes B1, B2, and B3 are lowered.

The bottom B2 of the second recessed groove 46 is positioned closer to the tip of the fastening hole 40 or the lower plate 10 than the bottom face B1 of the first recessed groove 45, The lower surface B3 of the second recessed portion 47 is located closer to the tip of the fastening hole 40 or the lower plate 10 than the bottom surface B2 of the second recessed portion 46. [

When the second recessed portion 46 to the Nth recessed portion are further provided as described above, the fan unit of the present invention can be provided with compatibility as follows. In other words, in the case of most electric fans currently produced and sold for home or business, the major axis length L1 of the motor drive shaft 2 is manufactured in various lengths within the range of 30 to 80 mm. Therefore, the length of each fan from the threaded portion 4 to the fastening 3 is different for each manufacturer.

In the case where recesses of various depths (P1, P2, P3) are formed in the fastener of the present invention such as the second recessed portion 46 and the third recessed portion 47 in addition to the first recessed portion 45, It is possible to flexibly cope with various long axis lengths.

For example, in the case of the fan a having the drive shaft a having the major axis length L1 of 70 mm, the fan unit of the present invention can be mounted on the fan a by engaging the claw of the drive shaft a with the first yaw groove 45, The fan unit of the present invention can be mounted on the fan b by engaging the bracket of the drive shaft b with the second recessed portion 46 in the case of the fan b having the drive shaft b of 50 mm in length L1, In the case of the fan c having the drive shaft c of mm, the fan unit of the present invention can be attached to the fan c by engaging the claws of the drive shaft c with the third yaw groove 47.

Therefore, according to the fan unit of the present invention, it is possible to selectively apply a recess corresponding to the drive shaft longitudinal length L1 of the user's fan, among the plurality of recessed portions 45, 46, and 47 having different depths, And can be used in a variety of fans according to manufacturers.

As a result, the fan unit of the present invention is structured so as to be specialized in an electric fan, which is commonly used in everyday life, so that if a conventional fan is detached regardless of the type of the fan, As shown in FIG.

The support 50 of the present invention is configured to fix the fastener 40 so that the long hole 41 is positioned on the central axis of the lower disk 10 and the fastener 40 is fastened to the lower disk 10, (60).

2, the support 50 includes a rod-like member having one end coupled to the fastener 40 and the other end coupled to the lower disk 10, And may be configured to fix the fastener 40 at the center (in the center portion of the air inflow hole 15 in FIG. 2).

When the support member 50 is formed of a rod member, the support members 50 may be provided in plural numbers and the plurality of support members 50 may be formed in a structure extending radially or in a cross shape around the fastener 40 .

According to another embodiment, the support 50 may be plate-shaped. In this case, the upper disc 60 is constituted by only a circular plate without the air inflow hole 65, and a central region of the circular plate can serve as the support 50. The upper disk 60 is attached to the lower disk 10 and the upper disk 60 is attached to the upper disk 60. In this case, So that the fastening tool 40 can be positioned at the center of the lower disk 10.

The fan according to the present invention is a means for firmly fixing the dust filter 20 between the upper disk 60 and the lower disk 10 and includes a lower outer jaw 11, a lower inner jaw 12, (80). ≪ / RTI >

FIG. 9A is a plan view of an upper disk having an upper inner and outer jaws and an upper elastic foam according to the present invention, FIG. 9B is a plan view of a lower disk having a lower inner and outer jaws and a lower elastic foam, Fig. 10A is a cross-sectional view taken along the line AA 'in Fig. 9A showing a state in which the dust filter is disposed on the lower surface of the upper elastic foam, and Fig. 10B is a cross- Sectional view taken along the line BB 'in which the dust filter is disposed on the upper surface of the elastic foam.

In the embodiment of FIG. 2, the fastener 40 is connected to the lower disk 10 through the support 50, but in the embodiment of FIG. 9, the fastener 40 is supported by the support 50, And is connected to the disk 60. That is, the fastener 40 may be selectively connected to the lower disk 10 or the upper disk 60, and further, may be connected to both the lower disk 10 and the upper disk 60.

Referring to FIGS. 9 and 10, the lower outer side step 11 of the present invention may have a jaw structure formed on the upper surface of the lower disk 10 so as to protrude along the circumference of the lower disk 10.

The lower inner jaw 12 is moved along the periphery of the lower disk 10 in a region spaced from the lower outer jaw 11 to the center side of the lower disk 10 (i.e., toward the air inlet hole 15) And a protruding jaw structure on the upper surface of the base 10.

The lower elastic foam 80 of the present invention is made of a material having an elastic force and is provided along the periphery of the lower disk 10 in a space provided between the lower outer jaw 11 and the lower inner jaw 12.

When the fan of the present invention further includes the lower outer jaw 11, the lower inner jaw 12 and the lower elastic foam 80, the lower end of the dust filter 20 is connected to the lower elastic foam 80 And the upper surface of the base plate.

According to a preferred embodiment, the upper disk 60 may further include an upper outer jaw 61, an upper inner jaw 62, and an upper elastic foam 81.

The upper outer jaw 61 may have a jaw structure formed on the lower surface of the upper disc 60 so as to protrude along the circumference of the lower disc 10.

The upper inner jaw 62 is formed in a jaw structure projecting on the upper surface of the lower disk 10 along the periphery of the upper disk 60 in an area spaced from the upper outer jaw 61 toward the center side of the upper disk 60 Lt; / RTI >

The upper elastic foam 81 is made of a material having elasticity and is provided along the circumference of the lower disc 10 in a space provided between the upper outer jaw 61 and the upper inner jaw 62.

When the fan of the present invention further includes the upper outer jaw 61, the upper inner jaw 62 and the upper elastic foam 81 as described above, the dust filter 20 has the upper end portion of the upper elastic foam 81 ) Of the base plate (1).

It is preferable that the lower elastic foam 80 and the upper elastic foam 81 form a nonwoven fabric or a sponge. In this case, the dust filter 20 may be formed of irregularly arranged fiber structures such as a nonwoven filter or a HEPA filter. It is most preferable to constitute a filter composed of

When the dust filter 20 is coupled between the lower disk 10 and the upper disk 60, the lower end of the dust filter 20 is pressed against the lower elastic foam 80, The upper end of the dust-collecting filter 20 is restricted in flow by the frictional force with the upper elastic foam 81 and the elastic force of the upper elastic foam 81, This is because the dust filter 20 can be firmly fixed between the lower disk 10 and the upper disk 60.

When the lower elastic foam 80 is formed of a nonwoven fabric or a sponge and the lower end of the dust filter 20 is formed of a lower elastic foam 80, A part of the lower end of the dust filter 20 is intertwined with the lower elastic foam 80 so that the frictional force between the elastic foam 80 and the lower elastic foam 80 can be maximized.

The dust filter 20 may further include an adhesive for adhering the lower end of the dust filter 20 to the upper surface of the lower elastic foam 80 when the dust filter 20 is required to be firmly fixed. It is also possible to further include an adhesive for attaching the upper end of the upper elastic foam 81 to the lower surface of the upper elastic foam 81.

Hereinafter, the wind wind and the air purifying operation of the fan having the above-described configuration will be described.

FIG. 11 is an exploded perspective view of a fan having a fan unit according to the present invention, FIG. 12 is an upper cross-sectional view of a fan having a fan unit according to the present invention, and FIG. 13 is a cross- Fig. 3 is an upper cross-sectional view of the fan.

First, by turning on a fan equipped with the fan unit of the present invention, the fastening tool 40 is rotated in conjunction with the driving of the motor 1, whereby the rotation operation of the upper and lower disks 10 .

When the rotation of the fan unit of the present invention starts, the air inside the fan unit is discharged to the outside by the rotational force of the fan unit, whereby the air pressure difference between the center of the fan unit (i.e., the air inflow hole 15 side) And the outside air is continuously introduced into the inside of the fan unit through the central portion of the fan unit, that is, through the air inlet holes 15 and 65 as shown by the arrow D1 in FIG.

Since the centrifugal force abruptly increases from the center of the fan unit toward the outer side and the wind pressure is highest at the position of the outermost dust filter 20, the air introduced into the central portion of the fan unit passes through the suction unit 30 and the dust filter 20, The harmful gas is adsorbed on the adsorption unit 30 and the fine dust is effectively filtered by the dust filter 20 and then discharged in both side directions D2 of the fan unit.

On the other hand, when the dust-collecting filter 20 is formed of the repeated concavo-convex shape as shown in FIG. 2, the dust-collecting filter 20 functions as impeller blades, and the effect of wind blowing can be further increased.

15 is a plan view of a fan unit further comprising a blade according to the present invention, and FIG. 16 is a plan view of a fan unit according to another embodiment of the present invention, A perspective view of the fan unit. 14 to 16, a fan having the fan unit of the present invention serves as a wind blowing air to be blown out to the side of the fan unit. At this time, on both sides of the fan protection net, 90, the direction of the wind which is discharged from the side surface of the fan unit and directed to both sides of the fan can be switched to the forward direction D3.

15 and 16, a plurality of blade plates 95 are disposed apart from each other in an inclined structure along the circumferential portion of the fan unit, as shown in FIGS. 15 and 16, It is possible to forward the direction of the wind exhausted outside the dust filter 20 (that is, the side direction) after the inflow and to cause the air around the fan unit to move. Here, the " peripheral portion of the fan unit " in which the blade 95 is provided refers to an outermost circumferential portion of the lower disk 10 or the upper disk 60, or an area including the outermost circumferential portion .

The fan unit of the present invention as described above can be provided in the form of a fan assembly coupled to the drive shaft 2 of the motor 1 provided in a conventional fan. In this case, the fan assembly of the present invention includes a fan protection net in which an air passage hole is formed and a fan unit is accommodated therein, a motor 1 connected to the drive shaft 2 and causing axial rotation of the drive shaft 2, And the above-described fan unit coupled to the drive shaft 2 of the motor 1 and rotated in association with rotation of the shaft of the drive shaft 2.

Although the preferred embodiments of the present invention have been illustrated and described using specific terms, such terms are used only for the purpose of clarifying the present invention, and the embodiments of the present invention and the described terminology should be construed to cover the technical scope and scope of the following claims It will be obvious that various changes and modifications can be made without departing from the spirit and scope of the invention. Such modified embodiments should not be individually understood from the spirit and scope of the present invention, but should be within the scope of the present invention.

1: Fan motor 2: Fan motor shaft
3: Brace 10: Lower disk
11: lower outer jaw 12: lower inner jaw
15: air inflow hole of the lower disk 20: dust filter
30: suction part 40: fastener
41: long hole 45: first bulb groove
46: second yaw groove 47: third yaw groove
50: support member 60: upper disk
61: upper outer jaw 62: upper inner jaw
65: air inlet hole of upper disk 70: partition wall
80: lower elastic foam 81: upper elastic foam
90: reflector 95: wing plate

Claims (16)

A lower disc (10) having an air inlet hole (15) formed in a central region thereof;
A dust collection filter (20) provided along the circumference of the lower disk (10) on the lower disk (10);
A suction unit (30) provided on the lower disk (10) in a structure surrounded by the dust filter (20);
An upper disc (60) disposed on the dust filter (20);
A fastener (40) provided on the center of the lower disk (10) so that a long hole (41) is located; And
And the elongated hole (41) formed through the fastening hole (40) along the height direction of the fastening hole (40).
The method according to claim 1,
And a pair of first yaw groove portions (45) formed on the upper surface or the lower surface of the fastener (40) with the long hole (41) as a center.
3. The method of claim 2,
Further comprising a pair of second recessed grooves (46) formed on an upper surface or a lower surface of the fastener (40) with the long hole (41) as a center,
Wherein a depth (P1) of the first recessed groove (45) and a depth (P2) of the second recessed groove (46) are different from each other.
The method of claim 3,
Further comprising a third yaw groove (47) formed on an upper surface or a lower surface of the fastener (40) with the elongated hole (41) as a center,
The depth P1 of the first recessed portion 45, the depth P2 of the second recessed portion 46 and the depth P3 of the third recessed portion 47 are different from each other A fan unit for an electric fan.
3. The method of claim 2,
Further comprising a pair of second recessed grooves (46) formed on an upper surface or a lower surface of the fastener (40) with the long hole (41) as a center,
The bottom surface B1 of the first yaw groove 45 and the bottom B2 of the second yaw groove 46 have heights H1 and H2 that are different from each other with respect to the one end C1 of the long hole 41, And the fan unit is configured so as to be positioned in the fan unit.
The method according to claim 1,
Wherein said elongated hole (41) is configured to have a major axis length of less than 80 mm and a diameter of at least 4 mm.
The method according to claim 1,
A lower outer jaw (11) protruding from the upper surface of the lower disc (10) along the circumference of the lower disc (10);
A lower inner jaw 12 protruding from the upper surface of the lower disc 10 along the periphery of the lower disc 10 in a region spaced from the lower outer jaw 11 toward the center of the lower disc 10, ; And
And a lower elastic foam 80 provided along the periphery of the lower disk 10 in a space between the lower outer jaw 11 and the lower inner jaw 12,
Wherein the dust-collecting filter (20) is disposed such that a lower end thereof contacts the upper surface of the lower elastic foam (80).
8. The method of claim 7,
The dust filter (20) is made of irregularly arranged fiber structure,
The lower elastic foam 80 is made of a sponge or a nonwoven fabric,
The dust filter 20 is provided between the upper disk 60 and the lower disk 10 by a friction force between the one end of the dust filter 20 and the lower elastic foam 80 and by the elastic force of the elastic foam. Is limited.
8. The method of claim 7,
An upper outer jaw 61 protruding from the lower surface of the upper disc 60 along the periphery of the upper disc 60;
An upper inner jaw 62 protruding from the lower surface of the upper disc 60 along the periphery of the upper disc 60 in an area spaced from the upper outer jaw 61 toward the center of the upper disc 60, ; And
And an upper elastic foam 81 provided along the circumference of the upper disc 60 in a space between the upper outer jaw 61 and the upper inner jaw 62,
Wherein the dust-collecting filter (20) is disposed such that an upper end thereof is in contact with a lower surface of the upper elastic foam (81).
The method according to claim 1,
Further comprising a plurality of partitions (70) radially formed on one surface of the lower disk (10) with respect to a center of the lower disk (10)
The adsorption part 30 is filled in the spaces between the partition walls 70 provided by neighboring partition walls 70 and is divided into a plurality of areas by a plurality of partition walls 70 as a whole Features fan unit for fan.
The method according to claim 1,
The lower disk 10 is formed of an annular plate,
Wherein the upper disk (60) is formed of a plate having an air inlet hole (65) formed in a central region thereof, and is arranged to face the lower disk (10).
The method according to claim 1,
Further comprising a support base (50) for fixing the fastener (40) so that an elongated hole (41) of the fastener (40) is positioned on the center of the lower disk (10)
Wherein one end of the supporter (50) is coupled to the fastener (40), and the other end is a rod-like member coupled to the lower disk (10) or the upper disk (60).
The method according to claim 1,
A plurality of wing plates 95 spaced apart from each other in a slanting manner along the circumference of the lower disk 10 or the upper disk 60 to switch the direction of wind blown to the outside of the dust filter 20, Wherein the fan unit further comprises:
The method according to claim 1,
Wherein the adsorption unit (30) is at least one selected from the group consisting of activated carbon, zeolite, alumina, activated alumina gel, and a polymer carrier.
15. The method of claim 14,
Wherein the suction unit (30) is provided in any one form selected from the group consisting of powder, pellet, powder compact, porous compact, fiber, sponge, and film.
Fan protection net; A motor (1); A drive shaft (2) connected to the motor (1) and rotated axially; And a fan unit for an electric fan according to any one of claims 1 to 15, which is coupled to the drive shaft (2) and rotates in conjunction with the rotation of the drive shaft (2).

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