WO2018016900A1

WO2018016900A1 - Blower

Info

Publication number: WO2018016900A1
Application number: PCT/KR2017/007850
Authority: WO
Inventors: 박희철; 구명진; 김종욱; 최규환
Original assignee: 엘지전자 주식회사
Priority date: 2016-07-20
Filing date: 2017-07-20
Publication date: 2018-01-25

Abstract

The present invention relates to a blower. A blower according to one embodiment of the present invention comprises: a first flow generation device and a second flow generation device, which are vertically arranged; fans disposed inside the first flow generation device and the second flow generation device, respectively; and an airflow changing device, which is disposed between the first flow generation device and the second flow generation device and guides air discharged from the fans in the radial direction.

Description

air blower

The present invention relates to a blower.

In general, a blower is understood as a device that sucks air and blows it to a location desired by a user. Such a blower is mainly disposed in an indoor space such as a home or an office, and is used to cool the user by operating to blow wind to the user in hot weather such as summer.

Conventional blowers generally comprise a support and a blower. Prior literatures related to such conventional blowers are as follows.

[Preceding technical literature]

[Patent Documents]

Publication No. 10-2008-0087365 (published date: October 01, 2008, the name of the invention: fan)

Looking at the configuration of a conventional blower presented in the disclosed prior art, the blower is a main body with a built-in motor, the wing is coupled to the motor rotatably installed in the main body in accordance with the operation of the motor, disposed below the main body to the main body It includes a supporting part for supporting.

In addition, the first safety cover and the second safety cover is coupled to the front of the main body to which the motor is coupled is disclosed a configuration in which the wing portion is disposed therein. The first safety cover and the second safety cover are intended to prevent the user from directly contacting the rotating wing.

Accordingly, the conventional blower may blow wind to the user as the wing unit rotates when the motor inside the main body is driven.

Such a blower is judged to be the same as that of a blower which is generally used.

By the way, according to the conventional blower, there exists the following problem.

First, as the wind is discharged using only one fan, not only the discharge intensity is lowered but also the concentration of the discharged wind is lowered.

Second, when using a plurality of fans, for example two fans, there is a problem that the structure of the blower is unstable because the coupling or support between the fans is weak.

Third, there is no separate device for guiding the discharged wind, there is a problem that the wind is discharged only in the direction in which the fan forms the wind.

In order to solve this problem, a blower according to an embodiment of the present invention is disclosed.

An embodiment of the present invention is to provide a blower that can form a strong wind compared to the conventional by using two fans.

In addition, the present embodiment, while the two fans are arranged up and down, it is an object to provide a stable blower during operation as it is firmly supported each other.

In addition, the present embodiment includes an air flow change device for guiding the air flow generated from the two fans arranged up and down, by guiding the air discharged in different directions in one direction, a blower that can increase the concentration of the wind The purpose is to provide.

Blower according to an embodiment of the present invention, the first and second flow generating device disposed up and down; A fan disposed inside each of the first and second flow generators; And an airflow changer disposed between the first and second flow generators and configured to radially guide the air discharged from the fan.

The second flow generator may support the air flow change device.

The airflow changing device may include a first airflow changing device having a first seating surface on which the bottom surface of the first flow generating device is seated.

The first airflow changing device may include a first curved portion that guides the air discharged from the first flow generating device in a radial direction.

The first curved portion may be formed on an outer circumferential surface of the first air flow change device.

An outer circumferential surface of the first air flow change device may form an edge portion of the first seating surface.

The airflow changing device may further include a second airflow changing device having a second seating surface seated on an upper surface of the first flow generating device.

The second air flow changing device may include a second curved portion that guides air discharged from the second fixing portion in a radial direction.

The second curved portion may be formed on an outer circumferential surface of the second air flow change device.

An outer circumferential surface of the second air flow change device may form an edge portion of the second seating surface.

The airflow changing device may further include a coupling unit disposed between the first airflow changing device and the second airflow changing device to couple the first and second airflow changing devices.

The coupling part may include one or more first coupling protrusions and one or more first coupling grooves disposed on the bottom surface of the first airflow change device.

The coupling part may further include one or more second coupling protrusions and one or more second coupling grooves disposed on an upper surface of the second air flow change device.

The one or more first coupling protrusions may be coupled to the one or more second coupling grooves, and the one or more second coupling protrusions may be coupled to the one or more first coupling grooves.

It is disposed so as to surround the outer peripheral surface of the first flow generating device, further comprising a first discharge guide device for discharging the air flow generated from the first fixing portion to one side.

And a second discharge guide device disposed to surround an outer circumferential surface of the second flow generating device and discharging air flow generated from the second fixing part to one side.

An upper suction part disposed on an upper side of the first flow generator to suck air; And a lower suction part disposed under the second flow generating device to suck air.

According to the blower according to the embodiment of the present invention constituting the above configuration has the following effects.

First, there is an effect that can use the two fans to form a strong wind compared to the conventional blower.

Second, while the two fans are arranged up and down, it is firmly supported with each other has the effect of having a stable structure during the blowing operation.

Third, by including an air flow change device for guiding the air flow generated from each of the two fans arranged up and down, there is an effect that can guide the air discharged in different directions in one direction.

1 is a perspective view of a blower according to an embodiment of the present invention.

2 is an exploded view of the blower according to the embodiment of the present invention.

3 is a cross-sectional view of the blower body according to the embodiment of the present invention.

Figure 4 is an exploded view of the first blower according to the embodiment of the present invention.

5 is an exploded view of the upper suction part and the first case according to the embodiment of the present invention.

6 is an exploded view of a first flow generating device according to an embodiment of the present invention.

7 is an exploded view of a first discharge guide device according to an embodiment of the present invention.

8 is a cross-sectional view of the first blower according to the embodiment of the present invention.

9 is a perspective view of the first blower in accordance with an embodiment of the present invention removing the first case and the upper suction portion.

10 is an exploded view of a second blower according to an embodiment of the present invention.

11 is a perspective view of removing the second case from the second blower according to the embodiment of the present invention.

12 is an exploded view of the lower suction part and the second case according to the embodiment of the present invention.

13 is an exploded view of a second flow generating device according to an embodiment of the present invention.

14 is an exploded view of a second discharge guide device and a second air flow change device according to an embodiment of the present invention.

15 is a cross-sectional view of a second blower according to an embodiment of the present invention.

Figure 16 is a side cross-sectional view of a configuration in which the first blower and the second blower according to the embodiment of the present invention are combined.

FIG. 17 is a side perspective view illustrating a first airflow change device and a second airflow change device through disassembly of a third fixing part; FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the invention.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms.

1 is a perspective view of a blower according to an embodiment of the present invention, Figure 2 is an exploded view of the blower according to an embodiment of the present invention.

1 and 2, the blower according to the embodiment of the present invention may include a main body for generating a flow of air and a support device for supporting the main body. The main body 10 may include a first blower 100 for generating a first air flow A (see FIG. 16) and a second blower 200 for generating a second air flow B (see FIG. 16). Can be.

The first blower 100 and the second blower 200 may be arranged in the vertical direction. In one embodiment, the first blower 100 may be disposed above the second blower 200. In this case, the first air flow A is sucked into the indoor air existing on the upper side of the main body 10, that is, the upper side of the first blower 100, so that the center portion of the first blower 100 is sucked. It may be an air stream discharged to the outside, the second air flow (B) is the second air blown by the suction of indoor air existing in the lower side of the main body 10, that is, the lower side of the second blower (100) It may be an airflow discharged to the outside of the central portion of the device 200.

In addition, the first blower 100 and the second blower 200 may be disposed symmetrically with respect to the same central axis, and may be rotatably disposed with respect to the central axis. The central axis is an imaginary line connecting the centers of the first blower 100 and the second blower 200, and is a virtual line set for a direction, and does not actually have a configuration.

The external appearance of the first blower 100 and the external appearance of the second blower 200 may have the same shape. In this case, the first blower 100 and the second blower 200 may be up and down. It may be arranged to be symmetric about the direction central axis.

The first blower 100 generates the first air flow A by sucking the indoor air existing in the upper side of the main body 10 and discharging the air in the first discharge direction from the lower end, and the second blower ( 200 may generate the second air flow B by sucking the indoor air existing in the lower side of the main body 10 and discharging it in the second discharge direction from the upper end.

The discharge direction of the first air flow A and the discharge direction of the second air flow B may be the same or different depending on the rotation directions of the first blower 100 and the second blower 200. .

As an example of operation, when the first blower 100 and the second blower 200 are rotated in one direction, the discharge direction of the first air stream A and the discharge direction of the second air stream B are mutually different. It may be in the same direction. That is, when the discharge direction of the first air stream A is forward with respect to the main body 10, the discharge direction of the second air stream B may also be forward.

The first air stream A and the second air stream B may be combined to form a third air stream C (see FIG. 21). The third air stream C may be referred to as "discharge air stream" of the first and second air streams A and B. The vertical direction of the discharge airflow C may be determined according to the discharge intensity of the first airflow A and the second airflow B. FIG. Detailed description thereof will be described later.

As another operation example, when the first blower 100 rotates in one direction and the second blower 200 rotates in the other direction, the discharge direction of the first air flow A and the second air flow ( The discharge direction of B) may be different directions, ie opposite directions. That is, when the discharge direction of the first air stream A is forward with respect to the main body 10, the discharge direction of the second air stream B may be rearward.

The flow control when the first discharge direction of the first air stream A and the second discharge direction of the second air stream B are the same direction may be defined as centralized air flow control, and the first discharge is performed. Flow control when the direction and the second discharge direction are different directions may be defined as 'distributed airflow control'. In addition, in the concentrated airflow control and the distributed airflow control state, the user may determine whether to rotate. Detailed description thereof will be described later.

The support part 300 is disposed under the main body 10 and is a means capable of supporting the main body 10. In detail, the support part 300 is connected to the lower side of the main body 10 and connected to a lower end of the first support part 310 and the first support part 310 supporting the main body 10 and disposed horizontally on the ground. It may include a second support 320 in the form of a plate.

The first support part 310 may extend the second support part 320 from the main body 10. In detail, the first support part 310 may have a Y-shaped pipe shape. In this case, an upper portion of the Y-shaped pipe may be connected to the lower end of the main body 10, and a lower portion of the Y-shaped pipe may be connected to the base.

In addition, the first support part 310 may have a wiring accommodation space 311 in which wiring is accommodated. For example, the wiring may be provided in plural. In detail, the first support part 310 may be a pipe in which a wire receiving space 311 is formed, and the wire connected to the main body 10 is connected to the second support part through an internal space of the first support part 310. 320 may be introduced into. The plurality of wires may connect the main body 10 and the control unit.

The second support part 320 is connected to the lower end of the first support part 310 and is a means capable of supporting the main body 10 by being horizontally seated on the ground. That is, the second support part 320 may function as a base horizontal to the ground.

The second support part 320 may be accommodated in the control unit for controlling the operation of the main body 10 therein. In this case, one end of the plurality of wires is connected to the main body 10 and is disposed in the wiring accommodation space 311 of the first support part 310, and the other end flows into the second support part 320. It may be connected to the control unit disposed in the second support 320. By the connection structure, the plurality of wires may connect the main body 10 and the control unit. That is, the blower according to the embodiment of the present invention has an effect of keeping the size of the main body 10 compactly by accommodating the control unit and the wiring in the support 300.

The controller 400 disposed in the second support 320 may control the rotation of the first blower 100 and the second blower 200. Detailed description related to the rotation control will be described later.

Hereinafter, the configuration of the main body 10 of the blower according to the embodiment of the present invention will be described in detail.

3 is a cross-sectional view of a blower main body according to an embodiment of the present invention, Figure 4 is an exploded view of a first blower according to an embodiment of the present invention, Figure 5 is a top suction unit and the first according to an embodiment of the present invention 6 is an exploded view of a first flow generating device according to an embodiment of the present invention, FIG. 7 is an exploded view of a first discharge guide device according to an embodiment of the present invention, and FIG. 8 is an embodiment of the present invention. 9 is a cross-sectional view of a first blower according to an embodiment, and FIG. 9 is a perspective view of the first blower according to an embodiment of the present invention, with the first case and the upper suction part removed.

3 to 9, the main body 10 may include a first blower 100 and a second blower 200 as described above. The first blower 100 is a means for sucking air existing in the upper side of the main body 10 and discharging the sucked air in the first discharge direction at the lower end.

The first blower 100 may include an upper suction part 110 disposed at an upper side thereof to allow suction of indoor air from the upper side. The upper suction part 110 may include a first suction opening 110a through which an air is sucked, formed in a substantially ring shape. In addition, the upper portion of the upper suction portion 110 may be configured to have a diameter smaller than the lower portion. That is, the upper suction part 110 may have a conical shape whose end is cut off.

In addition, the height of the outer peripheral surface of the upper suction unit 110 may be greater than the height of the inner peripheral surface. That is, an extension line extending from the outer circumferential surface of the upper suction part 110 to the inner circumferential surface may be rounded downward. Accordingly, since the air disposed above the first blower 100 may flow along the rounded inclined surface of the upper suction part 110, the suction force of the upper suction part 110 may increase. .

In addition, the filter mounting part 112 on which the filter 111 is mounted may be disposed on the inner circumferential surface side of the upper suction part 110. In more detail, the filter mounting portion 112 may have a large ring shape and a filter mounting opening may be formed at a central portion thereof. In this case, the size of the filter mounting opening may be approximately the same as the size of the first suction opening 110a of the upper suction unit 110.

The filter 111 may be formed in a circular shape having a diameter corresponding to the diameter of the filter mounting opening, and may be fitted to the filter mounting opening. That is, the filter 111 is disposed in the first suction opening 110a, and the air flowing through the upper suction part 110 is filtered by the filter 111 to filter out fine dust or foreign matter in the air. Is effective. Note that there is no restriction on the type of the filter 111.

A plurality of first protruding ribs 112a protruding in a radial direction from the center of the filter mounting portion 112 may be formed on an outer surface of the filter mounting portion 112. The plurality of first protruding ribs 112a may be disposed to be spaced apart from each other along the outer circumferential surface of the filter mounting part 112. The first protruding rib 112a may be coupled to the first bent rib 113b formed on the upper surface 113a of the first case 113 to be described later.

The first blower 100 may further include a first case 113 which is combined with a lower portion of the upper suction part 110 to form an appearance. In detail, the first case 113 may have a substantially ring shape. An upper diameter of the first case 113 may have a diameter equal to a lower diameter of the upper suction part 110. The lower diameter of the first case 113 may be larger than the upper diameter.

In addition, the first case 113 includes an upper surface 113a and a lower surface formed to have a predetermined width between the outer circumferential surface and the inner circumferential surface. The lower surface of the upper suction part 110 is coupled to the upper surface 113a of the first case 113, whereby the upper suction part 110 and the first case 113 may form an integrated shape. In addition, an extension line from the top to the bottom of the first case 113 may be formed to achieve a predetermined curvature.

In addition, a plurality of first bending ribs 113b may be formed on the upper surface 113a of the first case 113. The plurality of first bent ribs 113b may be coupled to the plurality of first protruding ribs 112a formed at the filter mounting part 112.

In detail, the first bent rib 113b may have a "-" shape. In this case, in order to couple the filter mounting part 112 to the first case 113, the filter mounting part 112 is disposed on the upper surface of the first case 113 to rotate the first protruding rib 112a. ) May be coupled to the first bent rib 113b.

In addition, a plurality of second protruding ribs 113c may be formed on an upper surface 113a of the first case 113, and a plurality of second protruding ribs 113c may be formed on a lower surface of the upper suction part 110. A plurality of first coupling grooves that can be coupled may be formed. As the plurality of second protruding ribs 113c are fitted into the plurality of first coupling grooves, the upper surface of the first case 113 and the lower surface of the upper suction part 110 may be coupled to each other.

On the inner circumferential surface side of the first case 113, a first flow generating device may be disposed. In detail, the first flow generating device may be understood as a means for generating a flow in which air is sucked toward the upper suction part 110 and a flow in which air is discharged to a first discharge guide device to be described later.

The first flow generating device will be described in detail.

The first flow generating device accommodates the upper fan 120 that rotates, the upper fan motor 130 that transmits rotational force to the upper fan 120, and the upper fan 120 and the upper fan motor 130. It may include an upper fan housing 140.

The upper fan motor 130 may be coupled to the upper fan housing 140 to transmit a driving force to the upper fan 120. In detail, the upper fan motor 130 may include a rotation shaft coupled to the upper fan 120 to rotate the upper fan 120. The upper fan motor 130 is generally a motor coupled to the fan is not limited in configuration.

The upper fan 120 is coupled to the upper fan motor 130, it is a means that can rotate. For example, the upper fan 120 may include a centrifugal fan for introducing air in the axial direction and discharging the air to be inclined downward in the radial direction.

In detail, the upper fan 120 includes a hub 121 coupled to the rotation shaft 131 of the upper fan motor 130, a shroud 122 and the hub 121 spaced apart from the hub 121. ) And a plurality of blades 123 disposed between the shroud 122.

The hub 121 may have a bowl shape in which the width of the hub 121 is narrowed upward. In addition, the hub 121 may include a shaft coupling portion 124 to which the rotating shaft 131 may be coupled, and a first blade coupling portion extending downward from the shaft coupling portion. In addition, the upper fan motor 130 is disposed in the lower inner space of the hub 121, the rotating shaft 131 of the upper fan motor 130 is coupled to the rotating shaft coupling portion 124 of the hub 121. Can be.

The shroud 122 may include an upper end formed with a shroud suction port through which the air passing through the upper suction part 110 is sucked, and a second blade coupling part extending downward from the upper end.

One surface of the blade 123 may be coupled to the first blade coupling portion of the hub, and the other surface may be coupled to the second blade coupling portion of the shroud 122. In addition, the plurality of blades 123 may be disposed to be spaced apart in the circumferential direction of the hub 121.

The blade 123 may include a leading edge forming a side end portion through which air is introduced and a trailing edge forming a side end portion at which the air is discharged. The air sucked through the upper suction part 110 and passed through the filter 111 flows downward, flows in the axial direction of the upper fan 120, flows into the leading edge, and passes through the blade. Can flow out to the trailing edge.

At this time, the trailing edge may extend inclined outwardly downward in the axial direction corresponding to the flow direction of the air so that the air flowing out through the trailing edge can flow inclined downward in the radial direction.

The upper fan housing 140 may include a first coupling fan housing 142 in which the upper fan 120 and the upper fan motor 130 are accommodated and an upper portion of the first coupling fan housing 142. One side fan housing 141 may be included. The first side fan housing 141 and the first coupling fan housing 142 may define an accommodation space 140a in which the upper fan 120 and the upper fan motor 130 are accommodated.

The first side fan housing 141 may include a ring-shaped first upper surface portion 141a disposed at an upper portion thereof, a ring-shaped first lower surface portion 141b disposed at a lower portion thereof, and the first upper surface portion 141a formed at a lower portion thereof. A plurality of first extension parts 141c for extending the first lower surface part 141b may be included.

The first upper surface portion 141a may have a surface perpendicular to the ground in a ring shape. That is, the first upper surface portion 141a may have a cylindrical shape with an upper end and a lower end opened.

On the outer circumferential surface of the first upper surface portion 141a, a second bending rib 141d extending in a circumferential direction by a predetermined length may be provided. The second bent rib 141d may have a “b” shape that is bent upward after protruding in the outer radius direction of the first upper surface part 141a. In addition, the second bending rib 141d may extend in the circumferential direction of the first upper surface portion 141a. By this configuration, the guide support device 150 to be described later can be rotated in a state coupled to the second bending ribs (141d) of the first upper surface portion (141a).

The first extension part 141c extends in the vertical direction from the first upper surface part 141a toward the first lower surface part 141b and may have a plate shape. The first extension part 141c may be disposed in plural so as to be spaced apart by a predetermined interval along the circumferential direction of the first side fan housing 141.

The first lower surface portion 141b includes a first lower surface portion main body formed in a ring shape to have a surface horizontal to the ground and a first recessed portion 141e recessed in a radial direction from an inner circumferential surface of the first lower surface portion main body. It may include. In detail, a plurality of first recesses 141e may be formed, and may be disposed to be spaced apart at regular intervals in the circumferential direction of the first lower surface unit body.

The first coupling fan housing 142 may be connected to a lower portion of the first side fan housing 141 and may have a cylindrical shape having an upper portion thereof open. In detail, the first coupling fan housing 142 may include a first side portion 142b, a second lower surface portion 142a, and an upper fan motor coupling portion 144.

The first side surface portion 142b may extend downward from the first lower surface portion 141b of the first side fan housing 141. In detail, the first side portion 142b has a ring shape having a surface perpendicular to the ground, and downwards from an upper end of the first side portion main body extending downward from the inner circumferential surface of the first lower surface portion 141b and the first side portion main body. The recessed second recess 142c may be included.

A plurality of second recessed portions 142c may be formed to be spaced apart from each other along a circumferential direction of the main body of the first side portion 142b. The first recessed portion 141e and the second recessed portion 142c may be disposed up and down to communicate with each other, thereby forming a communication space. The first pinion gear 143, which will be described later, may be partially exposed to the outside of the upper fan housing 140 through the communication space.

In addition, the first side body has a first pinion gear engaging surface 142d extending from the lower end of the second recessed portion 142c toward the center and to which the first pinion gear 143, which will be described later, may engage. It may include. The first pinion gear coupling surface 142d may have a surface parallel to the first lower surface portion main body.

When the first pinion gear 143 is coupled to the first pinion gear engaging surface 142d, a portion of the first pinion gear 143 may be formed by the first recess 141e and the second recess 142c. Through the communication space of the), it can protrude to the outside of the main body of the first side portion of the upper fan housing 140.

The first pinion gear 143 may be coupled to the first pinion gear coupling surface 142d. The first pinion gear 143 is a gear engaged with the first rack gear 173 of the first discharge unit 170, which will be described later, and an operation thereof will be described later.

For example, the first recessed portion 141e and the second recessed portion 142c may be disposed in a radial form with respect to the center of the upper fan housing 140, in this case, the first Three pinion gears 143 may also be disposed. In this case, the three first pinion gear 143 has the same center as the center of the circle that is the upper surface of the upper fan housing 140, and at the vertex position of the equilateral triangle having a vertex on the circumferential surface of the circle that is the upper surface Can be deployed.

The second lower surface portion 142a may be connected to a lower end of the first side surface portion 142b to form a lower surface of the upper fan housing 140. In addition, the upper fan motor coupling part 144 protrudes upward from the center of the second lower surface part 142a, and the upper fan motor 130 may be coupled to the upper fan motor coupling part 144.

A first gear motor 145 may be disposed on the second lower surface portion 142a to transmit a driving force for rotating the first pinion gear 143.

The first blower 100 is disposed between the first flow generator and the first case 113 to guide the first air flow A generated by the first flow generator to the outside. The apparatus may further include a first discharge guide device rotatable for discharging.

The first discharge guide device is disposed to surround an outer circumferential surface of the first flow generating device, and includes a first flow guide part 160 and the first flow guide for guiding air flow generated by the first flow generating device. It may include a first discharge unit 170 disposed below the unit 160 to discharge the air guided by the first flow guide unit 160 to the outside. The first discharge guide device is rotatably connected to the first flow generating device, and may rotate in the circumferential direction.

The first flow guide part 160 may have a ring shape. The diameter of the upper end of the first flow guide portion 160 may be smaller than the diameter of the lower end. That is, the first flow guide portion 160 may have a conical shape whose end is cut off.

The first flow guide part 160 may guide the air flowing by the upper fan 120. The first flow guide part 160 is inclined downward from the first airflow guide part 161 and the first airflow guide part 161 which provide a path through which air generated by the first flow generating device flows. It may include a second air flow guide portion 162 for guiding the flow of air.

The first airflow guide part 161 may have a C shape in which a portion of a ring shape is cut. In detail, the first airflow guide part 161 may have a side surface 161b forming an appearance and an upper surface 161a bent in a center direction from an upper end of the side surface 161b. A flow path through which air can flow may be formed in a space between the side surface 161b and the upper surface 161a of the first airflow guide part 161. That is, the side end surface of the first airflow guide portion 161 may have a "b" shape.

The second airflow guide part 162 may be provided at a cut portion of the first airflow guide part 161. In detail, the second airflow guide part 162 extends from the side of the first inclined surface 162a and the first airflow guide part 161 which are inclined downward from the top surface of the first airflow guide part 161. And a first guide connection part 162b bent downward from one side end of the first inclined surface 162a. The second airflow guide part 162 may further include a second guide connection part 162c bent upward from the other end of the first inclined surface 162a.

The inclined space formed by the first guide connecting portion 162b, the first inclined surface 162a, and the second guide connecting portion 162c forms an air flow path. In other words, the air flowing through the first airflow guide portion 161 passes through the flow path formed by the first guide connecting portion 162b, the first inclined surface 162a and the second guide connecting portion 162c. It may be guided to the first discharge unit 170.

A third bending rib 161c may be formed on an upper surface of the first airflow guide part 161. The third bending rib 161c is understood as a part to which the guide support device 150 to be described later can be coupled. In detail, the third bending rib 161c has a "-" shape and may be disposed on an upper surface of the first airflow guide part 161. The plurality of third bending ribs 161c may be disposed, and the plurality of third bending ribs 161c may be disposed to be spaced apart at regular intervals along the circumferential direction of the first airflow guide part 161.

A third protruding rib 161d protruding in the center direction may be formed at a lower side surface of the first airflow guide part 161. The third protruding rib 161d is understood as a portion to which the third discharge part may be coupled. The third protruding ribs 161d may be disposed in plural, and in this case, the plurality of third protruding ribs 161d may be arranged to be spaced apart at regular intervals along the circumferential direction of the first airflow guide part 161. Can be.

The first discharge part 170 may be disposed below the first flow guide part 160 to discharge the air guided from the first flow guide part to the outside. The first discharge part 170 may include a ring-shaped first discharge part main body 171 and a first rack gear 173 protruding upward from the first discharge part main body 171.

In detail, the first discharge part main body 171 has a ring shape and includes a first discharge hole 172 formed in a circumferential direction by a predetermined length. In this case, the set length of the first discharge port 172 may have a length substantially equal to the length of the second airflow guide portion 162. The air guided through the second airflow guide part 162 of the first flow guide part 160 may be discharged downward through the first discharge port 172.

A fourth bending rib 171a may be formed on the upper surface of the first discharge part main body 171. In detail, the fourth bending rib 171a is bent in a "-" shape, and a plurality of fourth bending ribs 171a may be provided. The plurality of fourth bent ribs 171a may be arranged to be spaced apart at regular intervals along the circumferential direction of the first discharge part main body 171.

When the first flow guide part 160 is seated on the first discharge part main body 171 and rotated, the third protruding rib 161d on the bottom surface of the first airflow guide part 161 may discharge the first discharge. The first flow guide part 160 may be coupled to the first discharge part 170 while being inserted into the fourth bent rib 171a of the sub main body 171.

The second airflow guide part 162 and the first discharge port 172 of the first flow guide part 160 are disposed up and down, and the flow path formed in the second airflow guide part 162 and the first discharge port. 172 may be in communication with each other. Accordingly, air guided through the second airflow guide part 162 may be discharged to the outside through the first discharge port 172.

The first rack gear 173 may have a ring shape protruding upward from an inner circumferential surface of the first discharge part main body 171. A plurality of teeth extending in the circumferential direction may be provided on the inner circumferential surface of the first leg gear 173.

The first discharge guide device may further include a guide support device 150 for supporting the first flow guide part 160.

The guide supporter 150 has a substantially ring shape and is coupled to the first flow guide part 160 and the upper fan housing 140 so that the first flow guide part 160 is not detached downward. The first flow guide part 160 may be supported.

The guide supporter 150 extends upwardly from the seating portion 151 seated on the first flow guide portion 160 and the seating portion 151 and is bent downward to the upper fan housing 140. It may include a coupling portion 152 coupled to.

The seating part 151 may have a ring shape and may include a bottom surface seated on an upper surface of the first flow guide part 160. In addition, the seating part 151 may have a plurality of second coupling grooves 153 arranged to be spaced apart in the circumferential direction.

After mounting the mounting portion 151 on the upper surface of the first flow guide portion 160 so that the third bending rib 161c is inserted into the second coupling groove 153, the guide support device 150 Rotation) allows at least a portion of the seating portion 151 to be inserted into the third bending rib 161c, and the guide supporter 150 may be coupled to an upper surface of the first flow guide portion 160. .

The coupling part 152 may have a ring shape and may be bent downward after protruding upward from the inner circumferential surface of the seating part 151. One side of the bent coupling portion 152 may include a hook. When the coupling part 152 is coupled to the second bending rib 141d, the guide supporter 150 may be coupled to the upper fan housing 140.

Since the extension direction of the coupling portion 152 and the extension direction of the second bent rib 141d form a circumferential direction, the coupling portion 152 is formed when the first flow guide portion 160 rotates. It can be rotated in the extending direction of the two bending ribs (141d).

Since the first blower 100 has a shape in which the diameter increases from the upper portion to the lower portion, the first ejection guide apparatus may be detached downward or may be out of position. Accordingly, by rotatably coupling the first discharge guide device to the upper fan housing 140 by using the guide supporter 150, the first discharge guide device can be prevented from being removed downward or shifted from the position. Can be.

The first blower 100 may further include a first airflow changer 180 disposed below the first discharge guide device and converting the flow of air discharged from the first discharge guide device to the side. Can be.

The first airflow changing device 180 may have a ring shape, and may include an inclined surface extending upwardly inclined downward toward an outer side thereof. Accordingly, the flow of air discharged downward from the first discharge guide device may be laterally changed by the inclined surface of the first air flow change device 180.

Hereinafter, the second blower 200 will be described in detail. The second blower 200 may have a shape upside down of the first blower 100. That is, if the first blower 100 has a conical truncated end portion whose diameter increases from the top to the lower portion, the second blower 200 has a conical shape whose truncated end portion increases in diameter from the lower portion to the upper portion thereof. Can have

10 is an exploded view of a second blower according to an embodiment of the present invention, FIG. 11 is a perspective view of a second blower removed from the second blower according to an embodiment of the present invention, and FIG. 12 is an embodiment of the present invention. 13 is an exploded view of a second flow generating device according to an embodiment of the present invention, and FIG. 14 is a second discharge guide device and a second airflow according to an embodiment of the present invention. 15 is an exploded view of a change device, and FIG. 15 is a cross-sectional view of a second blower device according to an embodiment of the present invention.

10 to 15, the second blower 200 includes a lower suction part 210, a second flow generator, a second flow guide part 260, and a second air flow change device 280. can do. The second blower 200 may suck air existing in the lower side of the main body 10 and discharge the air in the upper second discharge direction.

The lower suction part 210 may be disposed below the second blower 200 and may suck indoor air. In detail, the lower suction part 210 may have a substantially ring shape and may include a second suction opening through which air is sucked. In addition, the lower portion of the lower suction portion 210 may be configured to have a diameter smaller than the upper portion.

In addition, the height of the outer circumferential surface of the lower suction part 210 may be greater than the height of the inner circumferential surface. The extension surface 210a extending from the outer circumferential surface of the lower suction part 210 to the inner circumferential surface may be rounded upward.

The heater 201 may be disposed on an extension surface 210a of the lower suction part 210. In detail, a heater mounting part 212 for coupling the heater 201 to the extension surface 210a of the lower suction part 210 may be formed.

The heater mounting parts 212 may be disposed at one side and the other side of the extension surface 210a to support both ends of the heater 201. In the heater mounting unit 212, fitting grooves to which both ends of the heater 201 are coupled may be formed. However, this is only an example of coupling, if the heater 201 can be coupled to the heater mounting portion 212, there is no restriction on the coupling method.

The heater 201 has a rod shape, and both ends thereof may be coupled to fitting grooves of the heater mounting part 212. In this case, the heater 201 may be understood as a heat source for selectively heating the air introduced through the lower suction part 210, and there is no limitation on the type thereof.

The grill 211 may be disposed at the second suction opening of the lower suction part 210. The grill 211 may extend radially from the center. In detail, the grill 211 includes a plurality of first grills 211a coupled to a bottom surface of the lower suction part 210 and a plurality of second grills 211b having a circular shape connected to each other. It may include.

The grill 211 is formed of a metal material and heated together with the heater to evenly heat the air introduced through the lower suction part 210 as a whole.

As the heater and the grill 211 are disposed in the lower suction part 210, the user may allow cool air to be discharged by not driving the heater in hot weather such as summer, and cold weather such as winter. By driving the heater, the warm wind can be discharged.

The second case 213 may be connected to an upper portion of the lower suction unit 210 to form an appearance of the second blower 200. In detail, the second case 213 may have an approximately ring shape, and a lower diameter of the second case 213 may have a diameter substantially equal to an upper diameter of the lower suction part 210. In addition, an upper portion of the second case 213 may be configured to have a larger diameter than the lower portion thereof.

The second case 213 may have a shape in which the first case 113 is upside down. In addition, an extension line from the top to the bottom of the second case 213 may be formed to have a predetermined curvature.

On the inner circumferential surface side of the second case 213, a second flow generating device may be disposed. In detail, the second flow generating device is understood as a means for generating a flow into which air is sucked toward the lower suction part 210 and a second air flow B through which air is discharged to a second discharge guide device to be described later. It may be disposed above the lower suction part 210.

The second flow generating device will be described in detail.

The second flow generating device may have a shape in which the first flow generating device is reversed. In detail, the second flow generator includes a lower fan 220 that rotates, a lower fan motor 230 that transmits rotational force to the lower fan 220, and the lower fan 220 and the lower fan motor 230. It may include a lower fan housing 240 accommodated.

The lower fan motor 230 may include a rotating shaft coupled to the lower fan housing 240 and may transmit driving force to the lower fan 220. Since the configuration of the lower fan motor 230 is similar to the configuration of the upper fan motor 130, a detailed description thereof will be omitted.

The lower fan 220 is coupled to the lower fan motor 230, it is a means that can rotate. For example, the lower fan 220 may include a centrifugal fan that introduces air in the axial direction and discharges the air in the upper radial direction.

In detail, the lower fan 220 may include a hub 221 coupled to a rotation shaft of the lower fan motor 230, a shroud 222 and the hub 221 spaced apart from the hub 221. It may include a plurality of blades 223 disposed between the shroud 222. Since the configuration of the lower fan 220 is similar to the upper fan 120, a detailed description thereof will be omitted.

The air passing through the heater from the lower side through the lower suction part 210 flows upward while flowing in the axial direction of the lower fan 220, and may flow upward in the radial direction through the blade 223. .

The lower fan housing 240 includes a second coupling fan housing 242 in which the lower fan 220 and the lower fan motor 230 are accommodated, and a second side fan disposed below the lower fan housing 240. It may include a housing 241.

The second coupling fan housing 242 is the same structure as the first coupling fan housing 142 is upside down, the second side fan housing 241 is the first side fan housing 141 is up and down It can have an inverted structure. In addition, an accommodation space is formed in the second coupling fan housing 242 and the second side fan housing 241 to accommodate the lower fan 220 and the lower fan motor 230.

The second coupling fan housing 242 may include a second upper surface portion 242a, a second side portion and a lower fan motor coupling portion 244, and each configuration of the first coupling fan housing 142 Since the second lower surface portion 142a, the second side surface portion 142b, and the upper fan motor coupling portion 144 are the same as the upside down configuration, overlapping description thereof will be omitted.

In addition, the second side fan housing 241 may include a third upper surface portion 241b, a third lower surface portion 241a, and a second extension portion 241c, and each configuration may include the first side fan housing. The first lower surface portion 141b, the first upper surface portion 141a, and the first extension portion 141c of 141 are the same as the upside down configuration, and thus redundant description thereof will be omitted.

However, for convenience of description, the second pinion gear 243 is disposed at the position of the lower fan housing 240 corresponding to the position of the upper fan housing 140 in which the first pinion gear 143 is disposed. Please note that A second gear motor 245 for driving the second pinion gear 243 may be connected to the second pinion gear 243.

The second blower 200 is disposed between the second flow generator and the second case 213 and rotates to guide and discharge the air flow generated by the second flow generator to the outside. It may further include a movable second discharge guide device.

The second discharge guide device may include a second flow guide part 260 for guiding air flow generated by the second flow generating device and air guided above the second flow guide part 260. It may include a second discharge unit 270 to discharge to the outside. The second discharge guide device may be rotatable in the circumferential direction.

The shape of the second flow guide part 260 and the second discharge part 270 may be the same as a shape in which the first flow guide part 160 and the first discharge part 170 are inverted in the vertical direction. have.

In detail, the second flow guide part 260 may include a third airflow guide part 261 and a fourth airflow guide part 262, and the third airflow guide part 261 and the fourth airflow guide. Each configuration of the part 262 is the same as the configuration of the upstream and downward configuration of the first airflow guide portion 161 and the second airflow guide portion 162, a duplicate description thereof will be omitted.

The second discharge part 270 may include a second discharge part main body 271 and a second rack gear 273 in which a second discharge hole 272 is formed, and each configuration may include the first discharge part 170. Since the configurations of the first discharge unit body 172 and the first rack gear 173 in which the first discharge holes 172 are formed are the same as those inverted up and down, overlapping description thereof will be omitted. That is, the second discharge port 272 may be formed to be opened in the second discharge body 271 so as to have the same length as the extension length of the fourth airflow guide portion 262.

The second discharge guide device may not include the configuration of the guide support device 150 among the configurations of the first discharge guide device. This is because the overall appearance of the first blower 100 becomes smaller in diameter as the diameter increases from the top to the bottom, so that the diameter decreases as the whole appearance of the second blower 200 goes from the top to the bottom. This is because there is no fear that the second flow guide part 260 inside may be removed downward, and thus the second flow guide part 260 does not have to be supported.

The second blower 200 may further include a second airflow changer 280 disposed above the second discharge guide device and converting the flow of air discharged from the second discharge guide device laterally. Can be.

The second airflow change device 280 has a ring shape, and may include an inclined surface extending downwardly inclined upward toward the outside thereof. The air discharged upward from the second discharge guide device may be changed in a flow direction laterally by an inclined surface of the second air flow change device 280.

Hereinafter, the configuration of the first air flow change device 180 and the second air flow change device 280 will be described in detail. In addition, for convenience of description, the first airflow changer 180 and the second airflow changer 280 are collectively defined as an “airflow changer”.

FIG. 16 is a side cross-sectional view of a configuration in which a first blower and a second blower are coupled according to an embodiment of the present invention, and FIG. 17 is a first airflow change device through decomposition of an airflow changer according to an embodiment of the present invention. And a side perspective view of the second air flow change device.

Referring to FIGS. 16 and 17, the air flow changing device is disposed between the first flow generating device and the second flow generating device and receives air discharged from the first flow generating device and the second flow generating device. It is a means that can guide in the radial direction.

In detail, the air flow changing device may be supported by the second flow generating device, and the first flow generating device may be supported by the air flow changing device. That is, the upper surface of the second flow generating device, in detail, the upper surface of the lower fan housing 240 may support the lower surface of the air flow changing device, the upper surface of the air flow changing device is the lower surface of the first flow generating device That is, the lower surface of the upper fan housing 140 may be supported.

The configuration of the air flow change device will be described in detail.

The first airflow changer 180 is disposed above the second airflow changer 280, and the first airflow changer 180 and the second airflow changer 280 are symmetrical to each other. Can be combined.

In detail, the first air flow change device 180 is formed to have a predetermined curvature downward from an edge portion of the first seating surface 180a and the first seating surface 180a on which the lower surface of the first flow generating device is seated. And a first curved portion 180b that guides the air discharged from the first flow generator in a radial direction.

In more detail, the first curved portion 180b may be disposed on the outer circumferential surface of the first seating surface 180a and may be rounded downward with a set curvature. The air generated from the first flow generating device may be discharged downward through the first discharge guide part, and the discharged air may be guided along the extension direction of the first curved part 180b and discharged in the radial direction. .

The communication protrusion 184 may protrude upward from an upper surface of the first seating surface 180a, that is, a portion on which the lower surface of the upper fan housing 140 is seated. The communication protrusion 184 may be provided with a plurality. In addition, a plurality of communication grooves 181 may be formed on an upper surface of the first seating surface 180a. The plurality of communication protrusions 184 may be coupled to a plurality of communication protrusion fitting grooves formed on the lower surface of the upper fan housing 140.

The plurality of communication grooves 181 may be in communication with a plurality of communication grooves 281 disposed on the second seating surface 280a to be described later of the second air flow change device 280.

A plurality of first coupling grooves 182 may be formed on the first seating surface 180a, and a plurality of first coupling protrusions 183 protruding downward are formed on the bottom surface of the first seating surface 180a. Can be. The plurality of first coupling protrusions 183 may have the same shape as a plurality of second coupling protrusions 283 formed on an upper surface of the second seating surface 280a of the second airflow changing device 280 which will be described later. Can be.

The second airflow change device 280 may have the same shape as the shape of the first airflow change device 180 inverted in the vertical direction. In detail, the second airflow changing device 280 has a curvature set at the edge of the second seating surface 280a and the second seating surface 280a on which the upper surface of the second flow generating device is seated upward. It may include a rounded second curved portion 280b. The second curved portion 280b may guide air discharged from the second flow generator in a radial direction.

In more detail, the second curved portion 280b may be disposed on an outer circumferential surface of the first seating surface 280a. When the air generated from the second flow generating device is discharged upward through the second discharge guide part, the discharged air may be discharged in the radial direction by being guided along the extending direction of the second curved part 280b.

A plurality of communication protrusions (not shown) may protrude downward from the lower surface of the second seating surface 280a, that is, the portion seated on the upper surface of the lower fan housing 240, and the plurality of communication grooves 181. A plurality of communication grooves 281 may be formed in communication with each other. The plurality of communication protrusions may have the same shape as the plurality of communication protrusions 184 formed on the upper surface of the first seating surface 180a and the only protruding direction may be opposite to each other. The plurality of communication protrusions may be coupled to a plurality of communication protrusion fitting grooves formed on an upper surface of the lower fan housing 240.

A plurality of second coupling grooves 282 may be formed on the second seating surface 280a, and a plurality of second coupling protrusions 283 protruding upward may be formed on an upper surface of the second seating surface 180a. Can be. The plurality of second coupling protrusions 283 may protrude upward and have a shape bent by “a”.

The plurality of first coupling protrusions protruding downwardly from the bottom surface of the first seating surface 180a may include only a plurality of second coupling protrusions protruding upward from the top surface of the second seating surface 280a, and their protruding directions and arrangement positions. It has been described above that the shapes may be different but the same.

The plurality of first coupling grooves 182, a plurality of first coupling protrusions, a plurality of second coupling grooves 282, and a plurality of second coupling protrusions 283 may be collectively referred to as coupling units. The plurality of second coupling protrusions 283 may be fitted into the plurality of first coupling grooves 182, and the plurality of first coupling protrusions may be fitted into the plurality of second coupling grooves 282. . By this assembly method, the first airflow change device 180 and the second airflow change device 280 may constitute the airflow change device.

That is, the blower according to the embodiment of the present invention is disposed in the upper fan and the lower fan, respectively, inside the first flow generating device and the second flow generating device to generate air flow, between the air flow change device is disposed Air can be effectively discharged in the radial direction.

In addition, the blower according to the embodiment of the present invention is because the second flow generating device supports the air flow changing device, and the air flow changing device supports the first flow generating device, so that the support relationship between each other is firm. Therefore, there is an effect that can discharge the air more stably.

According to the present invention, since there is an effect of forming a strong wind compared to a conventional blower by using two fans, industrial applicability is remarkable.

Claims

First and second flow generators disposed up and down;

A fan disposed inside each of the first and second flow generators; And

It is disposed between the first and second flow generating device, and comprises a air flow change device for guiding the air discharged from the fan in the radial direction,

The second flow generator is a blower for supporting the air flow change device.
The method of claim 1,

The air flow change device,

And a first airflow changing device having a first seating surface on which a bottom surface of the first flow generator is seated.
The method of claim 2,

The first air flow change device,

And a blower including a first curved portion configured to radially guide the air discharged from the first flow generator.
The method of claim 3, wherein

The blower is formed on the outer circumferential surface of the first air flow change unit.
The method of claim 4, wherein

And an outer circumferential surface of the first air flow change device forming an edge portion of the first seating surface.
The method of claim 2,

The air flow change device,

And a second airflow changing device having a second seating surface seated on an upper surface of the first flow generator.
The method of claim 6,

The second air flow change device,

And a blower including a second curved portion guiding the air discharged from the second fixing portion in a radial direction.
The method of claim 7, wherein

The second curved surface portion blower is formed on the outer peripheral surface of the second air flow change device.
The method of claim 8,

And an outer circumferential surface of the second air flow change device forming an edge portion of the second seating surface.
The method of claim 6,

The air flow change device,

And a coupling part disposed between the first air flow change device and the second air flow change device, the coupling part coupling the first and second air flow change devices.
The method of claim 10,

The coupling part,

And a blower including at least one first coupling protrusion and at least one first coupling groove disposed on a bottom surface of the first air flow change device.
The method of claim 11,

The coupling part,

And a blower further comprising at least one second coupling protrusion and at least one second coupling groove disposed on an upper surface of the second air flow change device.
The method of claim 12,

The at least one first coupling protrusion is coupled to the at least one second coupling groove,

And at least one second coupling protrusion is coupled to the at least one first coupling groove.
The method of claim 1,

A first discharge guide device disposed to surround an outer circumferential surface of the first flow generating device and configured to discharge air flow generated from the first fixing part to one side; And

And a second discharge guide device disposed to surround an outer circumferential surface of the second flow generating device and discharging air flow generated from the second fixing part to one side.
The method of claim 1,

An upper suction part disposed on an upper side of the first flow generator to suck air; And

And a lower suction part disposed under the second flow generating device to suck air.