WO2019190169A1 - Ventilateur à flux mixte et ensemble ventilateur - Google Patents

Ventilateur à flux mixte et ensemble ventilateur Download PDF

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Publication number
WO2019190169A1
WO2019190169A1 PCT/KR2019/003506 KR2019003506W WO2019190169A1 WO 2019190169 A1 WO2019190169 A1 WO 2019190169A1 KR 2019003506 W KR2019003506 W KR 2019003506W WO 2019190169 A1 WO2019190169 A1 WO 2019190169A1
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WO
WIPO (PCT)
Prior art keywords
fan
scroll
air
axial direction
hub
Prior art date
Application number
PCT/KR2019/003506
Other languages
English (en)
Korean (ko)
Inventor
최우주
서기원
최성식
김강영
배준석
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020180035434A external-priority patent/KR102046469B1/ko
Priority claimed from KR1020180035444A external-priority patent/KR102033688B1/ko
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to CN201980035831.3A priority Critical patent/CN112204261B/zh
Publication of WO2019190169A1 publication Critical patent/WO2019190169A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing

Definitions

  • the present invention relates to a four-flow fan and a fan assembly including the same.
  • an air conditioner is composed of a compressor, a condenser, an evaporator, and an expander, and uses an air conditioning cycle to supply cold or warm air to a building or a room.
  • the air conditioner is provided with an air purifying means or a humidifying means, and is provided with a blower for flowing air to suck and discharge the outside air.
  • the blower includes a fan motor and a blowing fan coupled to the rotation shaft of the fan motor to suck and discharge air while being rotated by the driving of the fan motor.
  • the blower fan is classified into an axial fan, a centrifugal fan, and a crossflow fan according to the flow direction.
  • the axial flow fan is formed in a structure in which air is sucked in the rotational axis direction (hereinafter, axial direction) of the fan motor and discharged in the axial direction.
  • the centrifugal fan has a structure in which air is sucked in the axial direction and discharged in the circumferential direction.
  • the vortex fan has a structure in which air is sucked in the axial direction and discharged between the axial direction and the radial direction.
  • the blades do not stand upright in the axial direction but are laid obliquely in the axial direction, so that the linear length of the blade in the axial direction is shorter than that of the centrifugal fan.
  • the structure of the air conditioner has become a complicated trend. Therefore, if the crossflow fan is installed in place of the centrifugal fan in the air conditioner, the space in the axial direction is secured, compared to the case in which the centrifugal fan is installed, so that the size of the air conditioner can be reduced.
  • the airflow rate of the swirl fan must be high to purify or humidify the air, and to blow the humidified or purified air as far as possible.
  • the static pressure of the circulating fan should also be high.
  • Korean Unexamined Patent Publication No. 10-2014-0004403 (published Jan. 13, 2014) (hereinafter, referred to as 'first conventional technology') includes an air conditioner having an improved structure of a circulating fan located inside an indoor unit of an air conditioner. An indoor unit of a group is disclosed.
  • the said prior art vortex fan is comprised only by the hub and the some blade arrange
  • the additional resistor such as air collection filter or deodorization filter is low, the noise is easy to increase, it is difficult to secure the straightness of the discharged air.
  • Republic of Korea Patent Publication No. 10-2011-0018739 (published Feb. 24, 2011) (hereinafter referred to as 'second prior art') is provided with an air discharge port on the side of the main body, the auxiliary air at the upper end of the main body Disclosed is a multi-discharge type air conditioner having a discharge port and equipped with an air circulator at the auxiliary air discharge port.
  • the second conventional technology may discharge the air to the side through the air discharge port, the air circulator may send the air discharged through the auxiliary air discharge port far in the front.
  • the centrifugal fan for discharging air in the circumferential direction such as a sirocco fan
  • a part of the air discharged to the side of the conditioner may move upward and be sucked into the air circulator, and in order to solve the problem, the air discharged to the side may be in the crossflow direction (the direction between the front and the side).
  • the vane for controlling the flow direction of the air in the side of the air conditioner must be installed.
  • a first object of the present invention is to provide a circulating fan having a reduced length in the axial direction and a fan assembly including the same.
  • the second object of the present invention is to provide a four-flow fan and a fan assembly including the same, both of which have high air flow and static pressure.
  • a third object of the present invention is to provide a fan assembly in which a flow path in a fan casing in which air flows is formed in the crossflow direction so that air can be discharged in the crossflow direction without vanes.
  • the four-flow fan according to the invention consists of a shroud, a hub and a plurality of blades.
  • the shroud has a suction and a first slope.
  • the suction part forms an air suction port in the axial direction.
  • the first inclined portion extends obliquely between the axial direction and the radial direction at the suction portion.
  • the hub has a central portion and a second slope.
  • the central surface is convex toward the air inlet, and the opposite surface of the air inlet is concave.
  • the central portion is disposed in the first inclined portion.
  • the second inclined portion extends obliquely between the axial direction and the radial direction at the central portion.
  • the second inclined portion is disposed outside the first inclined portion.
  • the plurality of blades is disposed between the shroud and the hub, and connects the shroud and the hub.
  • the plurality of blades are spaced apart from each other along the circumferential direction.
  • Each of the plurality of blades includes a leading edge, a trailing edge, a shroud cord, and a hub cord.
  • the leading edge is located at the leading edge of the blade in the direction of rotation and is formed straight.
  • the trailing edge is located at the rear end in the rotational direction of the blade and formed straight.
  • the shroud cord connects one end of the leading edge and one end of the trailing edge.
  • the shroud cord extends from the inner circumferential surface of the shroud.
  • the hub cord connects the other end of the leading edge and the other end of the trailing edge.
  • the hub cord extends from the outer circumferential surface of the hub.
  • One end of the trailing edge is connected to the outermost edge end in the radial direction of the inner circumferential surface of the first inclined portion.
  • the other end of the trailing edge is disposed behind the trailing edge in the rotational direction, and is connected to the outermost edge end in the radial direction of the outer circumferential surface of the second inclined portion.
  • One end of the leading edge is connected to the innermost edge end in the radial direction of the inner circumferential surface of the first inclined portion.
  • the other end of the leading edge is disposed forward of the rotational direction than one end of the leading edge and is disposed closer to the center of the hub than the other end of the trailing edge, so that the innermost edge end in the radial direction of the outer circumferential surface of the second inclined portion is disposed.
  • the straight length in the axial direction of the second inclined portion may be formed longer than the straight length in the axial direction of the shroud.
  • the narrow angle between the straight line passing through the first slope and the straight line extending in the axial direction may be greater than the narrow angle between the straight line passing through the second slope and the straight line extending in the axial direction.
  • the length of the straight line connecting both ends of the shroud cord may be shorter than the length of the straight line connecting both ends of the hub cord.
  • the shroud cord and the hub cord may each be curved.
  • the plurality of blades includes a first blade and a second blade positioned immediately behind the first blade in a rotational direction, the straight line passing through the center of the hub and one end of the trailing edge of the first blade; And a narrow angle between the center of the hub and the straight line passing through the other end of the leading edge of the second blade comprises a straight line passing through the center of the hub and one end of the trailing edge of the first blade, and the center of the hub. It may be formed smaller than the narrow angle between the straight line passing through one end of the leading edge of the second blade.
  • the fan assembly consists of a four-flow fan and a pan casing.
  • the vortex fan sucks air in the axial direction and discharges it between the axial direction and the radial direction.
  • the crossflow fan is accommodated in the fan casing.
  • the fan casing is provided with an air inlet on one surface in the axial direction, and air outlets are formed on both sides in the radial direction.
  • the four-flow fan consists of a shroud, hub and a plurality of blades.
  • the shroud has a suction and a first slope.
  • the suction part forms a communication hole communicating with the air suction port in the axial direction.
  • the first inclined portion extends obliquely between the axial direction and the radial direction at the suction portion.
  • the hub has a central portion and a second slope.
  • the center portion is convex, the surface facing the communication hole and the opposite surface of the communication hole is formed concave.
  • the central portion is disposed in the first inclined portion.
  • the second inclined portion extends obliquely between the axial direction and the radial direction at the central portion.
  • the second inclined portion is disposed outside the first inclined portion.
  • the plurality of blades is disposed between the shroud and the hub, and connects the shroud and the hub.
  • the plurality of blades are spaced apart from each other along the circumferential direction.
  • Each of the plurality of blades includes a leading edge, a trailing edge, a shroud cord, and a hub cord.
  • the leading edge is located at the leading edge of the blade in the direction of rotation and is formed straight.
  • the trailing edge is located at the rear end in the rotational direction of the blade and formed straight.
  • the shroud cord connects one end of the leading edge and one end of the trailing edge.
  • the shroud cord extends from the inner circumferential surface of the shroud.
  • the hub cord connects the other end of the leading edge and the other end of the trailing edge.
  • the hub cord extends from the outer circumferential surface of the hub.
  • One end of the trailing edge is connected to the outermost edge end in the radial direction of the inner circumferential surface of the first inclined portion.
  • the other end of the trailing edge is disposed behind the trailing edge in the rotational direction, and is connected to the outermost edge end in the radial direction of the outer circumferential surface of the second inclined portion.
  • One end of the leading edge is connected to the innermost edge end in the radial direction of the inner circumferential surface of the first inclined portion.
  • the other end of the leading edge is disposed forward of the rotational direction than one end of the leading edge and is disposed closer to the center of the hub than the other end of the trailing edge, so that the innermost edge end in the radial direction of the outer circumferential surface of the second inclined portion is disposed.
  • a scroll may be formed in the pan casing.
  • the scroll may surround the swirling fan in the circumferential direction. Both ends of the scroll may extend to each of the air discharge ports.
  • the scroll may guide the air introduced through the air inlet to the air outlet.
  • the scroll may include a first scroll unit and a second scroll unit.
  • the first scroll portion may surround one side of the swirling fan, and the second scroll portion may surround the other side of the swirling fan.
  • the inner surface of the second scroll portion may be formed in the same shape as the inner surface of the first scroll portion, and both ends of the first scroll portion may be formed to be inverted by 180 degrees with respect to the center of the air suction opening.
  • Inner surfaces of each of the first scroll unit and the second scroll unit may include a flat surface portion, a curved surface portion, and an inclined surface portion.
  • the flat surface portion may extend parallel to the axial direction from one of the air discharge port of the two sides toward the other air discharge port.
  • the curved portion may extend from the flat surface portion toward the other air outlet.
  • the inclined surface portion may extend inclined with respect to the axial direction from the curved portion to the other air discharge port.
  • One of the inclined surface portion of the first scroll portion and the inclined surface portion of the second scroll portion is formed by inclining one end in the axial direction and the other end low, and the other end of the first scroll part in the axial direction is low and the other end is high. It can be inclined.
  • the thickness in the axial direction of the inner surface partitioned by the scroll among the surfaces of the air inlet of the fan casing may be formed thicker toward both sides of the air inlet from both sides of the air inlet.
  • the fan casing may be formed in an inner surface partitioned by the scroll among the surfaces on which the air intake port is formed, and is recessed along the circumferential direction from the outside of the air intake port to insert the inlet of the shroud.
  • the thickness in the axial direction of the inner surface may be formed thicker toward both sides of the air outlet from both sides of the recess.
  • Inner surfaces of each of the first scroll portion and the second scroll portion may include a first flat surface portion, a first curved portion, a second curved portion, and a second flat surface portion.
  • the first flat surface portion may extend from one of the air discharge ports on both sides toward the other air discharge port, and may extend parallel to the axial direction.
  • the first curved portion may extend from the first flat surface portion toward the other air outlet.
  • the second curved portion may extend in a direction opposite to the first curved portion in the first curved portion.
  • the second flat surface portion may extend from the second curved surface portion to the other air outlet, and may extend inclined with respect to the axial direction.
  • the second flat surface portion of the first scroll portion may be formed to be inclined with respect to the first flat surface portion of the second scroll portion.
  • the axial thickness of the first scroll portion and the axial thickness of the second scroll portion are gradually thickened from the start position of the first flat surface portion to the end position of the first curved portion, and the beginning of the second curved portion. It may be gradually thinned from the position to the end position of the second flat surface portion.
  • the thickness in the axial direction of the inner surface partitioned by the scroll among the surfaces on which the air intake openings of the fan casing are formed is the thickness in the axial direction of the outer surface partitioned by the scroll among the surfaces on which the air suction openings in the fan casing are formed. It can be formed thicker.
  • the thickness in the axial direction of the recess may be formed to be thinner than the thickness in the axial direction of the outer surface partitioned by the scroll among the surfaces on which the air inlet of the fan casing is formed.
  • the swirling fan and the fan assembly including the same according to the present invention have the effect of reducing the length of the swirling fan in the axial direction.
  • both the air flow rate and the static pressure of the four-flow fan has a high effect.
  • a fan installed inside the fan casing is formed of a four-flow fan.
  • the axial thickness of the inner surface partitioned by the scroll among the surfaces on which the air inlet of the fan casing is formed is made thicker from both sides of the air inlet to the air outlets on both sides, so that the fan casing through which air flows.
  • An inner flow path is formed in the crossflow direction. Therefore, there is also an effect that the air can be discharged in the crossflow direction without vanes.
  • FIG. 1 is a perspective view showing an indoor unit of an air conditioner to which a swirl assembly fan and a fan assembly including the same according to an embodiment of the present invention
  • FIG. 1 is an exploded perspective view of FIG. 1;
  • FIG. 3 is a front view of FIG. 1,
  • FIG. 4 is a left side view of FIG. 1;
  • FIG. 5 is a right side view of FIG. 1;
  • FIG. 6 is a plan view of FIG.
  • FIG. 7 is a bottom view of FIG. 1,
  • FIG. 8 is a right cross-sectional view of FIG.
  • FIG. 9 is a front view of the second fan assembly shown in FIG. 2;
  • FIG. 10 is a left side view of FIG. 9;
  • FIG. 11 is a right side view of FIG. 9;
  • FIG. 12 is an enlarged cross-sectional view of the second fan assembly shown in FIG. 8;
  • FIG. 13 is a plan sectional view of FIG. 8;
  • FIG. 14 is an exploded perspective view of the second fan assembly shown in FIG. 2;
  • FIG. 15 is a front view of the guide housing shown in FIG. 14;
  • FIG. 16 is a plan view of the guide housing shown in FIG. 14;
  • FIG. 17 is a left side view of the guide housing shown in FIG. 14;
  • FIG. 18 is a front cross-sectional view of the first fan assembly shown in FIG. 2;
  • FIG. 19 is a front view showing the swirling fan shown in FIG. 18;
  • FIG. 20 is a front sectional view of FIG. 19;
  • FIG. 21 is a plan view of FIG. 19;
  • FIG. 22 is a view illustrating the shroud of FIG. 21;
  • FIG. 23 is a diagram illustrating another embodiment of the pan casing shown in FIG. 18.
  • FIG. 1 is a perspective view showing an indoor unit of a four-flow fan and an air conditioner including a fan assembly according to an embodiment of the present invention
  • Figure 2 is an exploded perspective view of Figure 1
  • Figure 3 is a front view of Figure 1
  • Figure 4 1 is a left side view of FIG. 1
  • FIG. 5 is a right side view of FIG. 1
  • FIG. 6 is a plan view of FIG. 1
  • FIG. 7 is a bottom view of FIG. 1
  • FIG. 8 is a right sectional view of FIG. 3.
  • the air conditioner according to the present embodiment includes an outdoor unit (not shown) connected to the indoor unit 10 and circulating the refrigerant through the indoor unit 10 and the refrigerant pipe.
  • the outdoor unit includes a compressor (not shown) for compressing a refrigerant, an outdoor heat exchanger (not shown) for receiving and condensing refrigerant from the compressor, an outdoor fan (not shown) for supplying air to the outdoor heat exchanger, and the indoor unit. And an accumulator (not shown) for providing only the gaseous refrigerant to the compressor after receiving the refrigerant discharged at 10.
  • the outdoor unit may further include a four-way valve (not shown) to operate the indoor unit in a cooling mode or a heating mode.
  • a four-way valve (not shown) to operate the indoor unit in a cooling mode or a heating mode.
  • the indoor unit 101 evaporates the refrigerant to cool the indoor air.
  • the indoor unit 10 condenses the refrigerant to heat the indoor air.
  • the indoor unit 10 has a front opening, a cabinet assembly 100 having a suction port 101 formed at a rear side thereof, and assembled to a front of the opened cabinet assembly 100, and an internal space of the cabinet assembly 100 ( A door assembly 200 for opening and closing S), fan assemblies 300 and 400 disposed inside the cabinet assembly 100 and discharging air in the internal space S to the room, and the fan assembly A heat exchange assembly 500 disposed between the 300 and 400 and the cabinet assembly 100, the heat exchange assembly 500 for exchanging the sucked indoor air and the refrigerant, and the cabinet assembly 100 arranged in the cabinet assembly 100.
  • the filter word is disposed on the rear surface of the assembly 100. It moves up and down along the assembly 600, and includes a moving cleaner 700 to separate and collect the foreign matter of the filter assembly 600.
  • the indoor unit 10 sucks air through the suction port 101 formed on the rear surface of the cabinet assembly 100.
  • the fan assemblies 300 and 400 are composed of a first fan assembly 300 and a second fan assembly 400.
  • the heat exchange assembly 500 is disposed behind the first fan assembly 300 and the second fan assembly 400.
  • the heat exchange assembly 500 is disposed perpendicular to the ground.
  • the air sucked through the cabinet assembly 100 passes through the heat exchange assembly 500 orthogonally in this embodiment, and then flows to the first fan assembly 300 and the second fan assembly 400.
  • the heat exchange assembly 500 is manufactured to have a length corresponding to the height of the first fan assembly 300 and the second fan assembly 400.
  • the first fan assembly 300 discharges air in the lateral direction of the cabinet assembly 100.
  • the first fan assembly 300 provides indirect wind to the user.
  • the second fan assembly 400 is disposed above the cabinet assembly 100 and discharges air in a forward direction of the cabinet assembly 100.
  • the second fan assembly 400 provides a direct wind to the user.
  • the second fan assembly 400 improves circulation of indoor air by discharging air to a distant place in the indoor space.
  • the second fan assembly 400 may control the discharge direction of air in the up, down, left, right or diagonal directions.
  • the door assembly 200 may be coupled to the front surface of the cabinet assembly 100 and slidably moved in the left and right directions.
  • the door assembly 200 may be moved in one of left and right directions to open the internal space S.
  • the door assembly 200 may be moved in one of left or right directions to open only a part of the internal space S.
  • opening and closing of the door assembly 200 is composed of two stages.
  • the first stage opening and closing of the door assembly 200 is partially opened, and is for supplying water to the humidifying assembly 800, and exposes only an area to which the water tank 810 of the humidifying assembly 800 is exposed.
  • the second stage opening and closing of the door assembly 200 is opened to the maximum, and is for installation and repair.
  • the door assembly 200 includes a door stopper structure for limiting the opening and closing of the second stage.
  • the filter assembly 600 is disposed on the rear surface of the cabinet assembly 100.
  • the filter assembly 600 may be rotated to the side of the cabinet assembly 100 in a state in which the filter assembly 600 is disposed on the rear surface of the cabinet assembly 100.
  • the user may separate only the filter from the filter assembly 600 moved to the side of the cabinet assembly 100.
  • the filter assembly 600 is composed of two parts, each of which may be rotated left or right.
  • the moving cleaner 700 is an apparatus for cleaning the filter assembly 600.
  • the moving cleaner 700 may clean the filter assembly 600 while moving in the vertical direction.
  • the moving cleaner 700 may inhale air while moving to separate foreign substances attached to the filter assembly 600, and the separated foreign substances are stored therein.
  • the moving cleaner 700 is installed in a structure that is not indirect during the rotation of the filter assembly 600.
  • the humidifying assembly 800 may provide moisture to the internal space S of the cabinet assembly 100, and the provided moisture may be discharged into the room through the fan assembly.
  • the humidifying assembly 800 includes a detachable water tank 810.
  • the humidifying assembly 800 is disposed in the lower side of the cabinet assembly 100.
  • the heat exchange assembly 500 and the fan assembly 300 and 400 are disposed above the humidifying assembly 800.
  • the first fan assembly 300 is configured to discharge air laterally with respect to the cabinet assembly 100.
  • the first fan assembly 300 provides indirect wind to the user.
  • the first fan assembly 300 is disposed in front of the heat exchange assembly 500.
  • the first fan assembly 300 is provided with a plurality of blowers 310 are stacked in the vertical direction. In the present embodiment, three blowers 310 are provided and stacked in the vertical direction.
  • the blower 310 sucks air in the axial direction and discharges the air in a direction inclined forward with respect to the axial direction.
  • the blower 310 sucks air from the rear and discharges the air inclined between the front and the side.
  • the first fan assembly 300 is formed by opening the front and the rear, the fan casing 320 is coupled to the cabinet assembly 100, the fan casing 320 is coupled, the fan casing 320 It includes a plurality of blowers 310 installed in.
  • the pan casing 320 is manufactured in a box shape in which the front and rear surfaces are open.
  • the pan casing 320 is coupled to the cabinet assembly 100.
  • the front surface of the pan casing 320 is disposed to face the door assembly 200.
  • the rear surface of the pan casing 320 is disposed to face the heat exchange assembly 500.
  • the front of the pan casing 320 is in close contact with the door assembly 200 is closed.
  • a part of the side surface of the pan casing 320 is exposed to the outside.
  • the side discharge port 301 is formed in the fan casing 320 exposed to the outside.
  • Discharge vanes for controlling the discharge direction of air are disposed in the side discharge port 301.
  • the side discharge port 301 is disposed on the left and right of the pan casing 320, respectively.
  • the blower 310 is stacked in a line with respect to the vertical direction.
  • FIG. 9 is a front view of the second fan assembly shown in FIG. 2
  • FIG. 10 is a left side view of FIG. 9,
  • FIG. 11 is a right side view of FIG. 9
  • FIG. 12 is an enlarged cross-sectional view of the second fan assembly shown in FIG. 8
  • FIG. 13 is a cross-sectional plan view of FIG. 8
  • FIG. 14 is an exploded perspective view of the second fan assembly shown in FIG. 2
  • FIG. 15 is a front view of the guide housing shown in FIG. 14, and
  • the second fan assembly 400 is configured to discharge air forward with respect to the cabinet assembly 100.
  • the second fan assembly 400 provides a direct wind to the user.
  • the second fan assembly 400 is disposed in front of the heat exchange assembly 500.
  • the second fan assembly 400 is stacked on the upper side of the first fan assembly 300.
  • the second fan assembly 400 discharges air to the front discharge port 401 formed in the door assembly 200.
  • the second fan assembly 400 provides a structure rotatable in the up, down, left, right or diagonal direction.
  • the second fan assembly 400 may improve the circulation of indoor air by discharging air toward the far side of the indoor space.
  • the second fan assembly 400 includes a fan base 410 having a fan suction opening 411 through which the air passing through the heat exchange assembly 500 is sucked, and a fan suction opening 411 disposed in front of the fan base 410.
  • Fan 420 for discharging the air sucked in the in the direction of the four-flow direction, and is disposed in front of the fan base 410, coupled to the fan base 410, the air pressurized by the fan 420
  • the fan housing 430 to be guided to the fan housing 430, which is installed in the fan housing 430, is connected to the fan 420 and the motor shaft to rotate the fan 420, and the fan housing ( 430 is coupled to at least one of the discharge grill 450 and the fan casing 320 or the cabinet assembly 100 which is located in front and controls the discharge direction of the air guided through the fan housing 430 and
  • the fan housing 430 is coupled to be movable in the front-rear direction so that the slab of the fan housing 430 can be moved.
  • a guide housing 460 for guiding movement of the guide, a fan housing actuator 470 for providing a driving force when the fan housing 430 slides, and the discharge grill 450 are different with respect to the fan housing 430.
  • the fan base 410, the fan 420, the fan housing 430, and the fan motor 440, which are assembled into one structure, are defined as a fan housing assembly.
  • the fan base 410 is disposed in the vertical direction with respect to the ground.
  • the heat exchange assembly 500 is disposed at the rear of the fan base 410, and the fan 420 is disposed at the front.
  • An orifice protruding forward is formed on the front surface of the fan base 410.
  • the fan suction port 411 is formed at the center of the orifice.
  • the fan 420 is located in the orifice and rotated.
  • the fan 420 discharges the air sucked through the fan suction port 411 in the crossflow direction.
  • the crossflow direction is defined as the front side diagonal direction.
  • the fan housing 430 is formed in a cylindrical shape, and is opened and opened in the front and rear directions.
  • the fan motor 440 is positioned in front of the fan housing 430, and the fan 420 is located at the rear.
  • the motor shaft of the fan motor 440 is coupled to the fan 420 through the fan housing 430.
  • the fan motor 440 may be located inside the fan housing 430, thereby reducing the thickness of the second fan assembly 400.
  • the fan motor 440 is mounted to the fan housing 430.
  • the fan housing 430 includes an outer fan housing 432, an inner fan housing 434, and a vane 436.
  • the outer fan housing 432 is formed in a cylindrical shape of the front and rear openings, it is installed in the guide housing 460.
  • the outer fan housing 432 may receive a driving force from the fan housing actuator 470 and move in the front-rear direction.
  • the inner fan housing 434 is formed in a cylindrical shape in which the front and rear surfaces are opened, and is located inside the outer fan housing 432.
  • the inner fan housing 434 and the outer fan housing 432 are spaced apart from each other by a predetermined interval, and the vanes 436 connect the outer fan housing 432 and the inner fan housing 434 integrally.
  • the outer fan housing 432, the inner fan housing 434, and the vane 436 add linearity to the air discharged from the fan 420.
  • the fan motor 440 may be mounted inside the inner fan housing 434 to minimize interference with the discharged air.
  • the guide housing 460 mounts the fan housing 430 and guides the front and rear directions of the fan housing 430.
  • the guide housing 460 may be mounted or coupled to the upper portion of the pan casing 320.
  • the guide housing 460 is manufactured to have a bottom surface corresponding to an upper surface of the pan casing 320 so as to be easily coupled to the pan casing 320.
  • the guide housing 460 is formed to surround a portion of the bottom and both sides of the fan housing 430.
  • the structure for guiding the fan housing 430 may be disposed on either the bottom or the side.
  • the guide housing 460 includes a housing base 462 disposed on an upper portion of the first fan assembly 300, and housing side walls 463 and 464 protruding upward from both edges of the housing base 462. ).
  • At least one of the guide housing 460 and the fan housing assembly is provided with a fan housing stopper 461 for limiting the forward movement distance of the fan housing assembly.
  • the fan housing stopper 461 is disposed in the guide housing 460 and is in contact with the fan housing assembly when the fan housing assembly moves forward.
  • the fan housing stopper 461 is disposed on the housing base 462. Unlike the present embodiment, the fan housing stopper 461 may be disposed on the housing sidewalls 463 and 464.
  • Wiring holes 465 are formed in the housing sidewalls 463 and 464 for wiring the guide motor 472 to be described later.
  • the wiring hole 465 extends in the front-rear direction and is formed to communicate the inside and the outside of the guide housing 460.
  • the wiring hole 465 provides a space in which the wiring connected to the guide motor can be moved in the front and rear directions when the fan housing assembly is moved. Since the wiring may move along the wiring hole 465, it provides connection reliability with the guide motor 472.
  • the guide housing 460 is provided with a fastening portion for coupling with the fan casing 320.
  • the fastening part is formed in the housing base 462.
  • the fan housing actuator 470 is configured to move forward and backward of the fan housing 430.
  • the fan housing actuator 470 may move the fan housing 430 in the front-rear direction through a control signal of a controller.
  • the fan housing actuator 470 advances the fan housing 430.
  • the fan housing actuator 470 reverses the fan housing 430.
  • the fan housing actuator 470 moves the fan housing 430 through the driving force of the guide motor. Unlike the present embodiment, the fan housing actuator 470 may move the fan housing in the front and rear direction by using a device such as a hydraulic cylinder.
  • the central axis M1 of the fan housing assembly and the central axis C1 of the front discharge port 401 are arranged to be identical.
  • the fan housing actuator 470 moves the fan housing assembly in the front-rear direction in a state where the central axes M1 and C1 are coincident with each other.
  • the fan housing actuator 470 is disposed in the fan housing assembly, and provides a guide motor 472 for providing a driving force to move the fan housing assembly in the front and rear directions, and is disposed in the fan housing assembly.
  • a guide shaft 474 rotated by the rotational force of 472, a first guide gear 476 coupled to the left side of the guide shaft 474, and rotated together with the guide shaft 474, and the guide.
  • a second guide gear 477 coupled to the right side of the shaft 474 and rotated together with the guide shaft 474, disposed in the guide housing 460, and meshed with the first guide gear 476.
  • a first rack 478 and a second rack 479 disposed in the guide housing 460 and engaged with the second guide gear 477 are included.
  • the guide motor 472 is installed in the fan housing 430, the first rack 478 and the second rack 479 is disposed in the guide housing 460. Unlike the present embodiment, the guide motor 472 may be disposed in the guide housing 460, and the rack 478 may be disposed in the fan housing 430.
  • the fan housing 430 is advanced or retracted by the interaction of the racks 478 and 479 and the guide gears 476 and 477.
  • one guide motor 472 is used, and a guide shaft 474 is disposed to uniformly move the fan housing 430, and first guide gears are disposed at both ends of the guide shaft 474, respectively. 476 and the second guide gear 477 are disposed.
  • the first guide gear 476 is disposed on the left side of the guide shaft 474, and the second guide gear 477 is disposed on the right side of the guide shaft 474.
  • Racks 478 and 479 meshing with the guide gears 476 and 477 are disposed at the left and right sides of the guide housing 470, respectively.
  • first guide gear 476 and the second guide gear 477 are disposed above the first rack 478 and the second rack 479.
  • the first guide gear 476 and the second guide gear 477 are moved in the front-rear direction by riding the first rack 478 and the second rack 479.
  • the first rack 478 and the second rack 479 are formed on the upper surface of the housing base 462 of the guide housing 470, and protrude upward from the housing base 462 to guide the gears 476. 477 and mutual interference.
  • the rack 478 extends in a longitudinal direction.
  • the guide motor 472 may be disposed at a lower left side or a lower right side of the fan housing 430.
  • the motor shaft of the guide motor 472 may be directly coupled to the first guide gear 476 or the second guide gear 477.
  • the fan housing 430 When the guide motor 472 is rotated, the first guide gear 476 and the second guide gear 477 are simultaneously rotated by the rotational force of the guide motor 472, the fan housing 430 The left and right sides may be advanced or reversed through the same force.
  • a first guide rail 480 and a second guide rail 490 are further disposed between the fan housing 430 and the guide housing 470 to smoothly move the fan housing 430.
  • the first guide rail 480 couples the left side of the guide housing 470 and the left side of the fan housing assembly.
  • the first guide rail 480 is fixed to the inner left wall of the guide housing 470.
  • the first guide rail 480 is fixed to the left side of the fan housing 430.
  • the first guide rail 480 supports the load of the fan housing assembly and guides the moving direction of the fan housing assembly.
  • the second guide rail 490 couples the right side of the guide housing 470 and the right side of the fan housing assembly.
  • the second guide rail 490 is fixed to the inner right wall of the guide housing 470.
  • the second guide rail 490 is fixed to the right side of the fan housing 430.
  • the second guide rail 490 supports the load of the fan housing assembly and guides the moving direction of the fan housing assembly.
  • the first guide rail 480 and the second guide rail 490 are disposed symmetrically with respect to the central axis M1 of the fan housing assembly.
  • first guide rail 480 and the second guide rail 490 support a part of the load of the fan housing assembly, the front and rear movements of the fan housing assembly can be smoothly implemented.
  • the left and right sides of the fan housing assembly are guided to move at the same speed and distance.
  • the second fan assembly 400 is moved while moving.
  • the moving speed and the distance of the left or right of the fan housing assembly is non-uniform, it may not be correctly inserted into the front discharge port (401).
  • the first guide rail 480 is disposed between the left side of the housing side wall 463 and the fan housing 430.
  • the second guide rail 490 is disposed between the right side of the housing side wall 464 and the fan housing 430.
  • the first guide rail 480 and the second guide rail 490 minimize friction during movement of the fan housing 430 through rolling friction.
  • the fan housing assembly is moved forward through the operation of the fan housing actuator 470, and thus a part of the discharge grill 450 may be exposed out of the front discharge port 401.
  • the discharge grill 450 is not exposed outside the front discharge port 401.
  • the discharge grill 450 is located in front of the fan housing 430.
  • the discharge grill 450 is partially inserted into the fan housing 430.
  • the discharge grill 450 may be tilted in an up, down, left, right or diagonal direction while being inserted into the fan housing 430.
  • the discharge grill 450 is formed in a shape corresponding to the entire surface of the fan housing 430.
  • the discharge grill 450 is formed in a cylindrical shape. Since the discharge grill 450 is tilted in the inserted state in the fan housing 430, it is possible to minimize the leakage of the discharge air between the discharge grill 450 and the fan housing 430.
  • the outer surface 451 of the discharge grill 450 is formed in a curved surface with respect to the front and rear directions. When tilting through the curved surface formed on the outer surface 451 of the discharge grill 450, it may be formed to have a constant interval with the fan housing 430.
  • the shaft center C1 at the tilting of the discharge grill 450 coincides with the motor shaft of the fan motor 440.
  • the shaft center C1 may be disposed to be offset from the shaft center M1 by the fan motor 440.
  • the discharge grill 450 may be tilted in an up, down, left, right or diagonal direction based on the axis center C1.
  • the discharge grill 450 may be tilted in an up, down, left, right or diagonal direction while being exposed to the front discharge port 401.
  • the tilting assembly 1000 is disposed to steer the tilting angle of the discharge grill 450.
  • the tilting assembly 1000 is disposed between the discharge grill 450 and the fan housing 430.
  • the tilting assembly 1000 is disposed at a position where interference with discharge air is minimized.
  • the tilting assembly 1000 is positioned in front of the inner fan housing 434 to minimize interference with the discharged air.
  • the tilting assembly 1000 is located in front of the fan motor 440.
  • the tilting assembly 1000 provides a structure in which the discharge vane 450 is not restricted in a tilting direction or order. That is, the tilting assembly 1000 may perform left and right tilting after tilting up and down. In addition, the tilting assembly 1000 may tilt in the vertical direction after the left and right tilting.
  • tilting assembly 1000 since the tilting assembly 1000 according to the present invention has no limitation in the direction of tilting, steering of the discharge vane 450 may be realized immediately.
  • the tilting assembly 1000 has a rear surface fixed to the fan housing 430 side and a front surface of the joint 1050 assembled to the discharge vane 450 in a tiltable manner, and the fan housing 430 side or the discharge vane.
  • the joint 1050 is disposed on the shaft center C1.
  • the joint 1050 is a ball joint is used.
  • a universal joint may be used instead of the ball joint to be different from the present embodiment.
  • the joint 1050 may be fixed to the fan housing 320 or may be fixed to the fan motor 440.
  • the joint 1050 is installed in the fan mounter 442 that fixes the fan motor 440 to the fan housing 430.
  • the joint 1050 is disposed to face the front surface and is disposed on the shaft center C1 of the discharge vane 450 and the shaft center M1 of the fan motor 440.
  • the joint 1050 may be directly assembled to the rear surface of the discharge vane 450.
  • the tilting cover 1070 is further included, and the tilting cover 1070 is disposed between the discharge vane 450 and the joint 1050.
  • the tilting cover 1070 is coupled to the rear surface of the discharge vane 450.
  • the tilting cover 1070 is tilted in the up, down, left, right or diagonal direction together with the discharge vane 450.
  • the tilting cover 1070 covers the opened front surface of the inner fan housing 434.
  • the tilting cover 1070 conceals the fan motor 440 inside the inner fan housing 434.
  • the joint 1050 is assembled to the rear surface of the tilting cover 1070 to be tiltable.
  • the tilting cover 1070 and the joint 1050 are ball joint coupled to enable the free rotation of the tilting cover 1070.
  • the discharge vane 450 may be tilted in an up-down direction, left-right direction, or diagonally inclined direction in a state facing the front surface.
  • the discharge vane 450 is not limited in the tilting direction in the state facing the front.
  • the first direction is set in the vertical direction
  • the second direction is set in the left and right directions.
  • the first direction and the second direction can be arbitrarily changed.
  • the first direction and the second direction form an angle of 90 degrees.
  • the first tilting unit 1001 may push or pull the discharge vane 450 and tilt the discharge vane 450 in the vertical direction with respect to the joint 1050.
  • the second tilting unit 1002 may push or pull the discharge vane 450 and tilt the discharge vane 450 in the left and right directions with respect to the joint 1050.
  • the combination of the first tilting unit 1001 and the second tilting unit 1002 may tilt the discharge vane 450 in a diagonal direction with respect to the joint 1050.
  • the first tilting unit 1001 and the second tilting unit 1002 are composed of the same parts.
  • the configuration of the first tilting unit 1001 will be described as an example.
  • the first tilting unit 1001 includes a bracket 1010 fixed to the fan housing 430 side or the discharge vane 450 side, and a movable rack 1020 coupled to the bracket 1010 so as to be relatively movable. Is formed in the bracket (1010), the movable rack 1020 and the relative movable assembly, the guide portion 1012 for guiding the moving direction of the movable rack 1020, and the movable rack 1020 A tilting motor 1030 that provides a driving force to be moved, a tilting gear 1040 coupled to the motor shaft 1031 of the tilting motor 1030 and engaged with the moving rack 1020, and the The moving rack 1020 and the discharge grill 450 is coupled, and includes an adjust assembly (1060, adjust assembly) for adjusting the tilting angle of the discharge grill 450 when the moving rack 1020 moves.
  • an adjust assembly (1060, adjust assembly
  • the bracket 1010 may be fixed to the fan housing 430 or the discharge vane 450. In this embodiment, the bracket 1010 is fixed to the tilting cover 1070 disposed on the discharge vane 450 side. The bracket 1010 is coupled to the rear surface of the tilting cover 1070, and the adjust assembly 1060 is disposed through the tilting cover 1070.
  • the tilting motor 1030 is installed on the bracket 1010.
  • the tilting motor 1030 moves the movable rack 1020 in the front-rear direction while being fixed to the bracket 1010.
  • a guide part 1012 is formed in the bracket 1010 in the front-rear direction, and the movable rack 1020 slides along the guide part 1012.
  • the guide portion 1012 is formed in a slit shape penetrating in the left and right directions. Unlike the present embodiment, the guide portion 1012 may be formed in a groove shape.
  • the movable rack 1020 has an insertion portion 1022 inserted through the guide portion 1012.
  • the insertion part 1022 may be moved along the guide part 1012.
  • the guide part 1012 is formed to extend in the front-rear direction, and the insertion part 1022 is moved in the front-rear direction along the guide part 1012.
  • the movable rack 1020 is a rack is formed in the longitudinal direction, it is meshed with the tilting gear (1040). According to the rotation direction of the tilting gear 1040, the moving rack 1020 may be moved forward or backward.
  • the motor shaft 1031 of the tilting motor 1030 is disposed to face the bracket 1010.
  • the motor shaft 1031 is disposed in the left and right directions.
  • the tilting gear 1040 and the moving rack 1020 are disposed between the tilting motor 1030 and the bracket 1010.
  • the adjust assembly 1060 is configured to connect the discharge vane 450 and the moving rack 1020.
  • the adjust assembly 1060 is disposed to solve the variable distance difference.
  • the adjust assembly 1060 corrects the relative displacement and relative angle of the discharge vane 450 and the moving rack 1020, and maintains the discharge vane 450 in a tilted state.
  • the adjust assembly 1060 corrects the relative displacement and the relative angle through a multi-joint structure.
  • the adjust assembly 1060 has a first ball stud 1061 and a first ball stud 1061 having a rear side coupled to the movable rack 1020 and having a first first ball hinge 1065 formed at a front side thereof.
  • the first ball housing 1063 in which the first ball hinge 1065 disposed in the front side is inserted, and the front side is coupled to the discharge vane 450 and the second second ball hinge in the rear side.
  • a second ball stud 1062 having a 1066 formed therein and the second ball hinge 1066 disposed at the rear side of the second ball stud 1062 are inserted therein, and the first ball housing 1063 is inserted therein.
  • a second ball housing 1064 coupled with the first ball housing 1063 and the second ball housing 1064, and the first first ball hinge 1065 and the second second ball hinge 1064. 1066 and a hinge bar 1068 for forming relative rotation, respectively.
  • the rear side of the first ball stud 1061 is fixed to the moving rack 1020.
  • the first ball stud installation portion 1023 to which the first ball stud 1061 is fitted is formed at the front side of the movable rack 1020.
  • a spherical first ball hinge 1065 is disposed in front of the first ball stud 1061.
  • the first ball hinge 1065 is inserted into the first ball housing 1063.
  • the first ball hinge 1065 may be freely rotated relative to the first ball housing 1063 in the first ball housing 1063.
  • the front side of the second ball stud 1062 is fixed to the tilting cover 1070.
  • a spherical second ball hinge 1066 is disposed behind the second ball stud 1062.
  • the second ball hinge 1066 is inserted into the second ball housing 1064.
  • the second ball hinge 1066 may be freely rotated relative to the second ball housing 1064 in the second ball housing 1064.
  • the first ball housing 1063 and the second ball housing 1064 are combined to form a ball housing.
  • the first ball hinge 1065 and the second ball hinge 1066 are disposed to face each other in the ball housing.
  • the hinge bar 1068 is disposed between the first ball hinge 1065 and the second ball hinge 1066.
  • the hinge bar 1068 maintains a minimum distance between the first ball hinge 1065 and the second ball hinge 1066.
  • the hinge bar 1068 reduces friction between the first ball hinge 1065 and the second ball hinge 1066.
  • the hinge bar 1068 has a concave first accommodating portion 1068a in which a portion of the first ball hinge 1065 can be accommodated on a rear side thereof, and a portion of the second ball hinge 1066 on a front side thereof.
  • a concave second receiving portion 1068b that can be accommodated is formed.
  • the hinge bar 1068 is formed in a mortar form on both sides.
  • the adjust assembly 1060 connects the movable rack 1020 and the discharge vane 450 through the tilting cover 1070.
  • the tilting cover 1070 is formed with through holes 1071 and 1072 through which the adjust assembly 1060 passes.
  • Two through holes 1071 and 1072 are formed for the first tilting unit 1001 and the second tilting unit 1002.
  • FIG. 18 is a front sectional view of the first fan assembly shown in FIG. 2.
  • the fan casing 320 is provided with three blowers 310. However, since the structure of the three blowers 310 are the same, only the structure of one blower 310 and the part of the fan casing 320 in which the blower 310 is installed will be described as an example.
  • the blower 310 includes a vortex fan 340 and a fan motor 350 that rotates the vortex fan 340.
  • the swirling fan 340 sucks air in the axial direction when rotated by the driving of the fan motor 350 to discharge the sucked air between the axial direction and the radial direction.
  • the swirling fan 340 sucks air from the rear, and discharges the sucked air between the front and side surfaces.
  • the crossflow fan 340 is formed in the same structure as the fan 420 of the second fan assembly 400.
  • the swirling fan 340 is connected to the shroud 341, the hub 342 spaced apart from the shroud 341, and a blade 343 connecting between the shroud 341 and the spaced apart of the hub 342.
  • the blades 343 are provided in plurality, and the plurality of blades 343 are spaced apart from each other along the circumferential direction. In the present embodiment, the plurality of blades 343 is formed of seven. Since the plurality of blades 343 are formed in the same shape, only one blade 343 will be described below as an example.
  • the rotation axis of the fan motor 350 is coupled to the center of the hub 342. Therefore, when the rotation shaft of the fan motor 350 is rotated during the operation of the fan motor 350, the hub 342 may be rotated together with the rotation shaft of the fan motor 350.
  • the fan casing 320 has an air inlet 325 formed on one surface thereof in the axial direction.
  • the air inlet 325 may be formed in the front and rear direction on the back of the fan casing (320).
  • the fan casing 320 is provided with a scroll 330 for guiding the air discharged from the blower 310 laterally with respect to the cabinet assembly 100.
  • the scroll 330 guides the air discharged from the blower 310 to the side discharge port 301.
  • the scroll 330 guides the air introduced into the scroll 330 through the air intake 325 to the air discharge ports 326 and 327 on both sides.
  • the air discharge ports 326 and 327 on both sides may be holes communicating with the side discharge ports 301.
  • the fan casing 320 accommodates the swirling fan 340 therein.
  • the fan casing 320 has air inlets 325 formed on one surface in the axial direction, and air outlets 326 and 327 are formed on both sides in the radial direction.
  • a communication hole communicating with the air inlet 325 is formed in the axial direction, and communicating with the air inlet 325 when only the swirling fan 340 itself is opened.
  • the hole may be an air intake.
  • the hub 342 of the swirling fan 340 is formed convexly toward the air inlet 325, and the opposite side of the air inlet 325 is concave.
  • the hub 342 may be formed to have a rear surface convex toward the rear and a front surface concave toward the rear.
  • the front surface of the fan casing 320 is formed in a shape corresponding to the shape of the hub 342, the fan motor insertion portion 302 is formed concave toward the rear may be formed.
  • the fan motor insert 302 may be inserted into the concave front surface of the hub 342.
  • the fan motor 350 may be inserted into the fan motor insertion unit 302 and disposed in the fan motor insertion unit 302.
  • the rotating shaft of the fan motor 350 may be coupled to the center of the hub 342 after passing through the fan motor inserting portion 302 in front of the fan casing 320.
  • the hub 342 may be axially spaced apart from the fan motor insert 302. Opposite surfaces of the hub 342 and the fan motor insertion unit 302 may be spaced apart at equal intervals.
  • the fan motor 350 may be coupled to the fan motor insertion unit 302 through a triangular motor mount 351.
  • the motor mount 351 supports one side of the case of the fan motor 350 opposite to the surface on which the rotating shaft protrudes, and three fastening bosses 302A having three corner portions protruding inside the fan motor insertion unit 302. Can be fastened via bolts.
  • the scroll 330 surrounds the circumferential fan 340 in the circumferential direction, and both ends thereof extend to the respective air discharge ports 326 and 327 to guide the air introduced through the air suction ports 325 to the air discharge ports 326 and 327.
  • the scroll 330 includes a first scroll portion 331 surrounding one side of the swirling fan 340 and a second scroll portion 332 surrounding the other side of the swirling fan 340.
  • the first scroll unit 331 is located above the second scroll unit 332 and is formed to be longer in the horizontal direction.
  • the second scroll portion 332 is located below the first scroll portion 331 and is formed to be longer in the horizontal direction.
  • the first scroll part 331 and the second scroll part 332 are formed to have the same inner surface facing each other.
  • the second scroll portion 332 has a shape in which both ends of the first scroll portion 331 are inverted by 180 degrees with respect to the center of the air suction opening 325.
  • the second scroll unit 332 has a first scroll unit 331 and a second scroll, except that both ends of the first scroll unit 331 are formed to be inverted by 180 degrees with respect to the center of the air suction opening 325. Since the unit 332 is formed in the same shape, only one second scroll unit 332 will be described as an example.
  • the inner surface of the second scroll portion 332 has a flat surface portion 332A and a curved portion (from the air discharge port 326 of the air discharge ports 326 and 327 to the other air discharge port 327). 332B and the inclined surface portion 332C are sequentially arranged.
  • the flat surface portion 332A extends parallel to the axial direction from one air discharge port 326 of the air discharge ports 326 and 327 on both sides to the other air discharge port 327.
  • the curved portion 332B extends from the flat surface portion 332A toward the other air discharge port 327.
  • the inclined surface portion 332C extends from the curved surface portion 332B to the other air discharge port 327 but inclined with respect to the axial direction.
  • the inclined surface portion 332C is formed by inclining the front end which is one end in the axial direction and the rear end which is the other end in the axial direction.
  • the inclined surface portion 332C of the first scroll portion 331 is formed by lowering the front end which is one end in the axial direction and the rear end which is the other end in the axial direction. That is, any one of the inclined surface portion 332C of the first scroll portion 331 and the inclined surface portion 332C of the second scroll portion 332 is formed by inclining one end in the axial direction and the other end low. It is formed by inclining one end low and the other end low in the axial direction. Therefore, the air discharge ports 326 and 327 on both sides have one surface side of the fan casing 320 having the air suction port 325 formed wider than the other surface side.
  • FIG. 19 is a front view illustrating the swirling fan illustrated in FIG. 18, FIG. 20 is a front sectional view of FIG. 19, FIG. 21 is a plan view of FIG. 19, and FIG. 22 is a view of the shroud projected from FIG. 21.
  • the shroud 341 is formed with a circular air inlet 345 communicating in the axial direction.
  • the air intake 345 may be a communication hole 345 communicating with the air intake 325 formed in the fan casing 320.
  • the shroud 341 is the upper and lower ends are open, the open upper end is the air inlet 345.
  • Hub 342 may have a central portion 342A inserted into shroud 341. That is, the center portion 342A means a portion inserted into the shroud 341 in the entirety of the hub 342.
  • the central portion 342A may have a convex surface facing the air inlet 345 and a surface opposite to the air inlet 345 may be concave.
  • the hub 342 is formed to be convex upward and has a hollow structure with an open lower end.
  • the hub 342 has an upper end inserted into the shroud 341 through an open lower end of the shroud 341, and a lower end protruding toward the lower end of the shroud 341.
  • the blade 343 includes a leading edge 343A located at the leading edge of the rotational direction and formed straight, a trailing edge 343B located at the rear end of the rotating direction and straightened, and one end and trailing edge 343B of the leading edge 343A. ) And one end of the trailing edge 343B and the other end of the trailing edge 343B and the shroud cord 343C extending from the inner circumferential surface of the shroud 341. Extending hub cord 343D.
  • the trailing edge 343B has one end connected to the outermost edge end of the shroud 341, and the other end is disposed behind the trailing edge 343B in the rotational direction and is positioned at the rearmost end of the hub 342.
  • the outermost edge end of the shroud 341 refers to the edge end located at the outermost in the radial direction of the inner peripheral surface of the shroud 341, when the axial direction is defined in the vertical direction of the shroud 341
  • the outermost edge end of the hub 342 means the edge end located in the outermost in the radial direction of the outer circumferential surface of the hub 342, the outermost of the outer circumferential surface of the hub 342 when the axial direction is defined in the vertical direction In the present embodiment, it means the lowest end of the outer circumferential surface of the second inclined portion 342B.
  • leading edge 343A is connected to the innermost edge of the shroud 341, and the other end thereof is disposed in front of the leading edge 343A in the rotational direction.
  • the other end of the leading edge 343A is disposed closer to the center 342A of the hub 342 than the other end of the trailing edge 343B is connected to the hub 342 below the center 342A.
  • the innermost edge end of the shroud 341 refers to the edge end located in the innermost radial direction of the inner peripheral surface of the shroud 341, when the axial direction is defined in the vertical direction of the shroud 341 It may mean the uppermost of the inner circumferential surface, in the present embodiment it means the uppermost of the inner circumferential surface of the first inclined portion 341B to be described later.
  • a portion of the hub 342 to which the other end of the leading edge 343A is connected refers to a position spaced axially from the innermost edge end in the radial direction of the outer circumferential surface of the second inclined portion 342B, When the axial direction is defined in the vertical direction, it means below the uppermost end of the outer circumferential surface of the second inclined portion 342B.
  • the shroud cord 343C is formed to extend from the inner circumferential surface of the shroud 341, and may be formed to be curved in a shape corresponding to the inner circumferential surface of the shroud 341.
  • the hub cord 343D extends from the outer circumferential surface of the hub 342, and may be formed to be curved in a shape corresponding to the outer circumferential surface of the hub 342.
  • the shroud 341 includes a suction portion 341A which defines the air inlet 345 in the axial direction, and a first inclined portion 341B which extends inclined between the axial direction and the radial direction at the suction portion 341A. .
  • the hub 342 includes a second inclined portion 342B extending obliquely from the central portion 342A between the axial direction and the radial direction and disposed outside the first inclined portion 341B.
  • the second inclined portion 342B is a portion disposed outside the first inclined portion 341B, and means a portion that protrudes out of the shroud 341. That is, the hub 342 becomes a central portion 342A, the upper portion of which is inserted into the first inclined portion 341B of the shroud 341 based on the virtual straight line L shown in FIG. 20.
  • the lower portion becomes the second inclined portion 342B, which is a portion protruding to the outside of the first inclined portion 341B of the shroud 341, based on the straight line L of.
  • trailing edge 343B is connected to the outermost edge of the inner circumferential surface of the first inclined portion 341B in the radial direction, and the other end thereof is the outermost edge of the outer circumferential surface of the second inclined portion 342B in the radial direction. Is connected to.
  • the trailing edge 343B has one end connected to the bottom of the inner circumferential surface of the first inclined portion 341B, and the other end is the bottom of the outer circumferential surface of the second inclined portion 342B. Is connected to.
  • the leading edge 343A has one end connected to the innermost rim end in the radial direction of the inner circumferential surface of the first inclined portion 341B, and the other end connected to the outer circumferential surface of the second inclined portion 342B.
  • the leading edge 343A has one end connected to the uppermost end of the inner circumferential surface of the first inclined portion 341B, and the other end of the leading edge 343A is lower than the uppermost of the outer circumferential surface of the second inclined portion 342B. Is connected below.
  • the linear length L1 of the second inclined portion 342B in the axial direction may be longer than the linear length L2 of the shroud 341 in the axial direction. That is, the linear length L1 in the axial direction of the portion protruding from the shroud 341 in the hub 342 is formed longer than the linear length L2 in the axial direction of the shroud 341.
  • the linear length L1 in the axial direction of the second inclined portion 342B is 42 mm
  • the linear length L2 in the axial direction of the shroud 341 is 26 mm. Therefore, in the present embodiment, the linear length L3 in the axial direction of the entire swirling fan 340 is formed to be 68 mm.
  • the narrow angle D1 between the straight line L4 passing through the first inclined portion 341B and the straight line L5 extending in the axial direction is a straight line L6 passing through the second inclined portion 342B in the axial direction. It is formed larger than the narrow angle D2 between the extending straight lines L7.
  • the narrow angle D1 between the straight line L4 passing through the first inclined portion 341B and the straight line L5 extending in the axial direction is 55.2 degrees, and the straight line passing through the second inclined portion 342B.
  • the narrow angle D2 between L6 and the straight line L7 extending in the axial direction is formed to be 44.1.
  • the distance between the first inclined portion 341B and the second inclined portion 342B is gradually wider from the side of the air intake 345.
  • the space between the first inclined portion 341B and the second inclined portion 342B is a flow path through which the air sucked in the air intake 345 flows, and the flow path is the air intake 345. The farther away from the side is gradually formed wider.
  • the length of the straight line L8 connecting both ends of the shroud cord 343C may be shorter than the length of the straight line L9 connecting both ends of the hub cord 343D.
  • the length of the straight line L8 connecting both ends of the shroud cord 343C is 45.5 mm
  • the length of the straight line L9 is 58 mm on both ends of the hub cord 343D.
  • the narrow angle D3 between the curve L10 passing through the shroud cord 343C and the curve L11 passing through the innermost edge of the first inclined portion 341B is the curve passing through the shroud cord 343C ( It is formed smaller than the narrow angle D4 between L10 and the curve L12 which passes the outermost edge end of the 1st inclination part 341B.
  • the narrow angle D3 between the curve L10 passing through the shroud cord 343C and the curve L11 passing through the innermost edge of the first inclined portion 341B is referred to as the shroud side entrance angle.
  • Narrow angle D4 between the curve L10 passing through the shroud cord 343C and the curve L12 passing through the outermost edge of the first inclined portion 341B, the shroud side It can be named exit angle and is formed at 36.7 degrees.
  • the narrow angle D5 between the curve L13 passing through the hub cord 343D and the curve L14 passing through the rotation direction tip of the hub cord 343D of the outer circumferential surface of the second inclined portion 342B is the hub cord 343D. Is smaller than the narrow angle D6 between the curve L13 passing through) and the curve L15 passing through the outermost edge of the second inclined portion 342B.
  • the narrow angle D5 between the curve L13 passing through the hub cord 343D and the curve L14 passing through the rotation direction tip of the hub cord 343D among the outer circumferential surfaces of the second inclined portion 342B are the hub side.
  • the narrow angle D6 between the curve L13 passing through the hub cord 343D and the curve L15 passing through the outermost edge of the second inclined portion 342B which may be referred to as an entrance angle, is formed at 21.6 degrees. It may be named as the hub side exit angle and is formed at 37.9 degrees.
  • the plurality of blades 343 may include a first blade 343-1 and a second blade 343-2 positioned immediately behind the first blade 343-1 in the rotation direction.
  • the narrow angle D7 between the straight line L17 passing through the other end of the leading edge 343A at ⁇ 2) is the center C of the hub 342 and the trailing edge 343B of the first blade 343-1.
  • the narrow angle D7 between the straight line L17 passing through the other end of the leading edge 343A of the two blades 343-2 may be referred to as the hub installation angle and is formed at 41.3 degrees, and the center C of the hub 342 is defined.
  • the narrow angle (D8) between the straight line (L18) passing through one end of may be referred to as the shroud installation angle and is formed at 42.8 degrees.
  • the bottom outer diameter of the second inclined portion 342B which is the maximum outer diameter of the hub 342 may be referred to as the diameter of the hub 342 is formed of 194.7mm
  • the diameter of the air inlet 345 is It is formed of 216.9 mm
  • the lower end diameter of the first inclined portion 341B, which is the maximum outer diameter of the shroud 341, is formed to be 270 mm.
  • FIG. 23 is a diagram illustrating another embodiment of the pan casing shown in FIG. 18.
  • the fan casing 3200 according to another embodiment of the present invention, three blowers 310 are installed in the same manner as the fan casing 320 of the previous embodiment, but in FIG. 23, only one blower 310 is installed.
  • the same reference numerals are given to the same components as in the above embodiments, and detailed description thereof will be omitted.
  • air inlets 3250 are formed at one surface in the axial direction, and air outlets 3260 and 3270 are formed at both sides in the radial direction.
  • the fan casing 3200 is surrounded by a circumferential fan 340 in the circumferential direction, and both ends thereof extend to the respective air discharge ports 3260 and 3270, and the air introduced through the air suction port 3250 receives the air discharge ports 3260. Scrolls 3310 and 3320 are guided to 3270.
  • the thickness in the axial direction of the inner surface IS partitioned by the scrolls 3310 and 3320 among the surfaces where the air inlets 3250 of the fan casing 3200 are formed is provided on both sides of the air inlets 3250. 3260, 3270) becomes thicker. Accordingly, the scrolls 3310 and 3320 surround the circumferential fan 340 in the circumferential direction, thereby forming an internal flow path for guiding the air introduced through the air suction port 3250 to the air discharge ports 3260 and 3270.
  • the air inlet 3250 of the inner flow path is formed to be inclined with respect to the opposite surface, so that the air introduced into the scrolls 3310 and 3320 through the air intake 3250, the air flow through the air discharge port (3260, 3270) Can be discharged.
  • the thickness in the axial direction of the inner surface IS partitioned by the scrolls 3310 and 3320 among the surfaces on which the air intakes 3250 of the fan casing 3200 are formed is the air intake 3250 of the fan casing 3200. It may be formed thicker than the thickness in the axial direction of the outer surface (OS) partitioned by the scroll (3310, 3320) of the surface.
  • an indentation part 3280 may be formed on an inner side surface IS of the surface on which the air inlet 3250 is formed, which is partitioned by the scrolls 3310 and 3320.
  • the depression 3280 is formed to be recessed along the circumferential direction at the outside of the air suction port 3250.
  • the depression 3280 is formed in an annular shape surrounding the air intake 3250.
  • One end of the shroud 341 of the swirling fan 340 may be inserted into the recess 3280.
  • the suction part 341A of the shroud 341 may be inserted and seated in the merged part 3280.
  • the thickness in the axial direction of the inner side surface IS is thicker from both sides of the recess 3280 toward the air discharge ports 3260 and 3270 on both sides.
  • the thickness in the axial direction of the recess 3280 is thinner than the thickness in the axial direction of the outer surface OS partitioned by the scrolls 3310 and 3320 among the surfaces on which the air inlet 3250 of the fan casing 3200 is formed. Can be.
  • the scrolls 3310 and 3320 may include a first scroll portion 3310 surrounding one side of the swirling fan 340 and a second scroll spaced apart from the first scroll portion 3310 and surrounding the other side of the swirling fan 340. Part 3320 is included.
  • Inner surfaces of the first scroll part 3310 and the second scroll part 3320 are formed in the same shape.
  • the second scroll part 3320 is formed in a shape in which both ends of the first scroll part 3310 are inverted by 180 degrees with respect to the center of the air suction opening 3250.
  • the inner side surface of the first scroll unit 3310 and the inner side surface of the second scroll unit 332 refer to surfaces facing each other.
  • the inner surface of the second scroll portion 3320 is formed in the same shape as the inner surface of the first scroll portion 3310, only the inner surface of the first scroll portion 3310 is taken as an example. And the shape of the inner surface of each of the second scroll portion 3320 will be described below.
  • the inner side surface of the first scroll portion 3310 is the first flat surface portion 3310A, which extends from one air discharge port 3270 of the two air discharge ports 3260 and 3270 to the other air discharge port 3260.
  • the first curved portion 3310B, the second curved portion 3310C, and the second flat surface portion 3310D are sequentially disposed.
  • the first flat surface portion 3310A extends parallel to the axial direction from one of the air discharge ports 3270 of both sides to the other air discharge port 3260.
  • the first curved portion 3310B is curved to extend from the first flat surface portion 3310A toward the other air discharge port 3260.
  • the second curved portion 3310C extends by bending in a direction opposite to the first curved portion 3310B at the first curved portion 3310B.
  • the second flat surface portion 3310D extends inclined with respect to the axial direction from the second curved portion 3310C to the other air discharge port 3260.
  • the second flat surface portion 3310D of the first scroll portion 3310 may be formed to be inclined with respect to the first flat surface portion 3310A of the second scroll portion 3320.
  • the first scroll part 3310 and the second scroll part 3320 are formed to have the same thickness in the axial direction, respectively. Since the first scroll part 3310 and the second scroll part 3320 are formed in the same shape, only the axial thickness of the first scroll part 3310 is taken as an example, and the first scroll part 3310 and the second scroll part are taken as an example. The thickness in the axial direction of each of the parts 3320 will be described below.
  • the first scroll portion 3310 has an axial thickness gradually thickened from the start position of the first flat surface portion 3310A to the end position of the first curved portion 3310B, and the start of the second curved portion 3310C. It is gradually thinned from the position to the end position of the second flat surface portion 3310D.
  • the start position of the second curved portion 3310C has the same meaning as the end position of the first curved portion 3310B.
  • the length of the axial direction of the swirling fan 340 is reduced, as well as both the air flow rate and the positive pressure.
  • a fan installed inside the fan casing 3200 is formed of a crossflow fan 340.
  • the thickness in the axial direction of the inner surface IS partitioned by the scrolls 3310 and 3320 among the surfaces on which the air inlets 3250 of the fan casing 3200 are formed is the air on both sides of the air inlets 3250. Since the discharge holes 3260 and 3270 are formed to be thicker, flow paths in the fan casing 3200 through which air flows are formed in the crossflow direction. Therefore, air can be discharged in the crossflow direction without vanes.
  • pan casing 325 air intake
  • first scroll unit 332 second scroll unit
  • suction part 341B first inclined part
  • 343A Leading Edge 343B: Trailing Edge

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un ventilateur à flux mixte ayant une longueur axiale réduite et un ensemble ventilateur le comprenant. À cet effet, le ventilateur à flux mixte selon la présente invention comprend : un carénage ayant une partie aspiration, qui dispose d'un orifice d'aspiration d'air formé dans une direction axiale, et une première partie inclinée, qui s'étend pour être inclinée entre la direction axiale et la direction radiale depuis la partie aspiration ; un moyeu, qui a une partie centrale ayant une surface convexe faisant face à l'orifice d'aspiration d'air et une surface concave opposée à l'orifice d'aspiration d'air, et se trouvant dans la première partie inclinée, ainsi qu'une seconde partie inclinée s'étendant pour être inclinée entre la direction axiale et la direction radiale depuis la partie centrale et disposée au niveau du côté externe de la première partie inclinée ; et une pluralité de pales disposées dans un espace entre le carénage et le moyeu de manière à relier le carénage et le moyeu et disposées pour être espacées les unes des autres dans une direction circonférentielle, chaque pale de la pluralité de pales comprenant un bord d'attaque positionné à l'extrémité avant de celle-ci dans la direction de rotation et formée pour être droite, un bord de fuite positionné à l'extrémité arrière de celle-ci dans la direction de rotation et formée pour être droite, une corde de carénage reliant une extrémité du bord d'attaque et une extrémité du bord de fuite et s'étendant depuis la surface périphérique interne du carénage, et une corde de moyeu reliant l'autre extrémité du bord d'attaque et l'autre extrémité du bord de fuite et s'étendant depuis la surface périphérique externe du moyeu ; une extrémité du bord de fuite étant reliée à la pointe de bord la plus à l'extérieur de la surface périphérique interne de la première partie inclinée dans la direction radiale et l'autre extrémité de celui-ci étant disposée derrière une extrémité du bord de fuite dans la direction de rotation de manière à être reliée à la pointe de bord la plus à l'extérieur de la surface périphérique externe de la seconde partie inclinée dans la direction radiale ; et une extrémité du bord d'attaque étant reliée à la pointe de bord la plus à l'intérieur de la surface périphérique interne de la première partie inclinée dans la direction radiale et l'autre extrémité de celui-ci étant disposée devant une extrémité du bord d'attaque dans la direction de rotation et étant disposée plus proche de la partie centrale du moyeu que l'autre extrémité du bord de fuite, de manière à être reliée à une position espacée dans la direction axiale de la pointe de bord la plus à l'intérieur de la surface périphérique externe de la seconde partie inclinée dans la direction radiale.
PCT/KR2019/003506 2018-03-27 2019-03-26 Ventilateur à flux mixte et ensemble ventilateur WO2019190169A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980035831.3A CN112204261B (zh) 2018-03-27 2019-03-26 混流风扇以及风扇组件

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KR1020180035434A KR102046469B1 (ko) 2018-03-27 2018-03-27 사류팬 및 팬어셈블리
KR10-2018-0035434 2018-03-27
KR10-2018-0035444 2018-03-27
KR1020180035444A KR102033688B1 (ko) 2018-03-27 2018-03-27 팬어셈블리

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CN114829782A (zh) * 2019-12-09 2022-07-29 Lg电子株式会社 送风机
US12038016B2 (en) 2019-12-09 2024-07-16 Lg Electronics Inc. Blower

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KR20170051374A (ko) * 2015-10-30 2017-05-11 엘지전자 주식회사 송풍팬 및 이를 포함하는 공기조화기

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KR20140018445A (ko) * 2012-07-06 2014-02-13 삼성전자주식회사 공기조화기의 실내기
KR20140015945A (ko) * 2012-07-27 2014-02-07 삼성전자주식회사 공기조화기
KR101385291B1 (ko) * 2014-01-17 2014-04-17 엘지전자 주식회사 공기조화기 및 공기조화기의 송풍장치
KR20170051374A (ko) * 2015-10-30 2017-05-11 엘지전자 주식회사 송풍팬 및 이를 포함하는 공기조화기

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114829782A (zh) * 2019-12-09 2022-07-29 Lg电子株式会社 送风机
CN114829782B (zh) * 2019-12-09 2024-04-05 Lg电子株式会社 送风机
US11959488B2 (en) 2019-12-09 2024-04-16 Lg Electronics Inc. Blower
US12038016B2 (en) 2019-12-09 2024-07-16 Lg Electronics Inc. Blower

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CN112204261B (zh) 2022-11-11

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