KR102630060B1 - Blower - Google Patents

Abstract

The blower according to an embodiment of the present invention includes a support part including a suction part through which air is sucked and a filter for purifying the air sucked into the suction part, and a support part extending upward from the support part and discharging air that has passed through the filter. It is formed in the tower portion and the tower portion, and may include a valley groove that is open in the front and rear direction along the central axis. And the tower unit includes a plurality of discharge ports that discharge air into the valley groove, a plurality of doors rotatably installed to open and close the plurality of discharge ports, and a single door motor that provides force to rotate the plurality of doors. It can be included.

Description

Blower {Blower}

The present invention relates to blowers.

In general, a blower is a mechanical device that drives a fan to create air flow. For example, the blower may have blades that rotate around a rotation axis. And the blower can generate air flow by rotating the blades.

The blower may be placed relatively close to the user indoors, such as at home or in an office. In this case, the blower is usually called “electric fan”. And the air flow generated by the blower can release heat from the room through convection and evaporation. Accordingly, the user inside the room can feel cool and comfortable.

Meanwhile, a conventional blower is visually equipped with blades attached to the rotating shaft, and is also equipped with a protective net mechanism such as a cage to prevent safety accidents related to the blades. However, these cages and wings are easily contaminated and are inconvenient to maintain. Accordingly, recently, various blowers (or electric fans) whose blades are invisible to the user have been released.

Additionally, the blower may be equipped with a filter to purify polluted air. In this case, the blower can perform air purification by discharging purified air. Here, the air cleaning performance of the blower can be determined by the amount of air discharged (“discharge capacity”).

Related prior art documents include Republic of Korea Patent Publication No. 10-2011-0100274 (publication date: September 9, 2011) and Republic of Korea Patent Publication No. 10-2019-0015325 (publication date: February 2019) 13) and Republic of Korea Patent Publication No. 10-2019-0025443 (publication date: March 11, 2019).

Meanwhile, the conventional blower has a problem in that in order to open and close multiple or multiple discharge openings that discharge air in different directions (“multi-directionality”), a plurality of actuators must be provided to open and close each discharge opening. For example, a conventional blower may have one step motor installed at each discharge port. According to this, there is a problem that the manufacturing cost of the product increases as the number of parts increases.

In addition, as the number of components installed inside increases, the structural resistance in the flow path increases and compact design becomes difficult.

Additionally, it is somewhat difficult to control the multiple actuators to simultaneously open and close multiple discharge ports in the air cleaning mode.

Meanwhile, since each outlet is formed to discharge air in different directions, the rotation direction of the door for opening and closing each outlet may also be different. Therefore, it is very difficult to rotate the door that opens and closes each discharge port using a single motor.

In addition, in order to create a comfortable sleeping environment for the user, the conventional blower lowers the rotation speed of the fan when it is desired to generate an airflow that gently spreads throughout the room (“hand-blowing wind”) rather than an airflow provided to directly contact the user. Use the method.

However, the air purifying performance of purifying air by passing it through a filter has a problem in that its efficiency decreases when the rotation speed of the fan is lowered. Therefore, there is a problem of poor air cleaning performance when providing surface wind.

The purpose of the present invention is to provide a blower that can solve the problems of the conventional blower described above.

Another object of the present invention is to provide a blower capable of opening and closing multi-directional or multiple discharge ports using multiple links connected to a single motor.

Another object of the present invention is to provide a blower that can simultaneously open and close a plurality of discharge ports that discharge air in different directions.

Another object of the present invention is to provide a blower with a door operating structure that can easily open and close a plurality of discharge ports that discharge air in different directions.

Another object of the present invention is to provide a blower having a sub outlet that can be opened and closed separately from the main outlet in order to provide a surface wind, which is an airflow that gently spreads throughout the room.

Another object of the present invention is to provide a blower equipped with a door that can easily open and close an outlet that is open in multiple directions.

Another object of the present invention is to provide a blower in which a flow path for generating a discharge air flow provided to a user can be internally varied depending on the operation mode.

Another object of the present invention is to provide a hidden blower in which the blades (or blades) of the rotating fan are non-visually provided.

In order to achieve the above object, the blower according to an embodiment of the present invention includes a support part including a suction part through which air is sucked and a filter for purifying the air sucked into the suction part, and extending upward from the support part, It is formed in the tower portion through which air passing through the filter is discharged, and may include a valley groove that is open in the front and rear direction along the central axis.

And the tower unit includes a plurality of discharge ports that discharge air into the valley groove, a plurality of doors rotatably installed to open and close the plurality of discharge ports, and a single door motor that provides force to rotate the plurality of doors. It can be included.

In addition, the support part may further include a fan that rotates to provide flow pressure and a diffuser that guides the flow direction of the air passing through the fan to ascend to the tower part.

Additionally, the diffuser includes a motor receiving portion in which a motor for rotating the fan is accommodated, and the door motor may be located in the motor receiving portion.

Additionally, the door motor may include a step motor.

In addition, the tower unit may further include a rack connected to the door motor to convert the rotary motion of the door motor into a linear motion, and a connection link rotatably connected to upper ends of both sides of the rack.

Additionally, the plurality of doors may include a lower door that is connected to the connection link and opens and closes a lower discharge port formed on the bottom surface of the valley groove.

Additionally, the rack may have a ‘T’ shape.

Additionally, the lower door may have a ‘C’ shaped cross section.

Additionally, door pins that guide the rotation direction of the lower door may be formed at the front and rear ends of the lower door.

In addition, the lower door may form a slide guide for transmitting force to the front door and rear door at one-quarter and three-quarter points of the length in the front-rear direction.

Additionally, the rack can perform the function of changing the rotation of the door motor into an up and down movement.

Additionally, the rack and the lower door may be formed using a slider-crack mechanism. Here, the rack may function as a slider and the lower door may function as a crank.

In addition, when the rack moves upward, the two connecting links coupled to the upper ends of both sides of the rack rotate, and the crank coupled to the connecting links rotates in both directions and can rotate all the lower doors.

According to this, the lower discharge port is opened so that the air guided upward by the diffuser can be discharged to rise toward the valley groove.

Additionally, the rotation center of the lower door has a different location from the rotation center of the front door that opens and closes the front discharge port and the rear door that opens and closes the rear discharge port. Accordingly, the rotation trajectory of the lower door is different from the rotation trajectory of the front door and the rear door.

Additionally, the lower door may include a slide guide that protrudes inward to be driven simultaneously even if the rotation trajectory is different from that of the front door and the rear door.

Additionally, a pin-shaped guide protrusion may be formed at the end of the slide link connected to the front door and the rear door. The guide protrusion may be movably connected to the slide guide.

Additionally, when the lower door rotates, the guide protrusion of the slide link may move outward along the space defined by the inner peripheral surface of the slide guide. And the slide link can also move along with the movement of the guide protrusion.

That is, the slide link can rotate along the moving direction of the guide protrusion. Ultimately, the front door and rear door coupled to the slide link rotate, and the front discharge port and rear discharge port can be opened.

Additionally, the door motor has one degree of freedom and can provide force to move the lower door in the left and right directions.

Additionally, the lower door can open and close the lower discharge port by drawing an arc.

In another aspect, a blower according to an embodiment of the present invention includes a support portion including a suction portion through which air is sucked and a filter that purifies the air sucked into the suction portion; a tower portion extending upward from the support portion and discharging air that has passed through the filter; and a valley groove formed in the tower portion and open in the front-back direction along the central axis, wherein the tower portion includes opposing surfaces facing each other to define the valley groove and a lower curved surface connecting lower ends of the opposing surfaces. tower case; a plurality of discharge ports that discharge air into the valley groove from different directions; a plurality of doors that open and close the plurality of discharge openings and are rotatably installed at each discharge opening; And it may include a door motor that provides force to rotate the plurality of doors.

Additionally, the door motor may be provided as a single door motor.

Additionally, the plurality of doors can be rotated by the force provided by the single door motor.

Additionally, the plurality of doors can simultaneously open and close the plurality of discharge ports.

Additionally, the plurality of doors may have rotation centers at different positions.

Additionally, the plurality of doors may be formed to be symmetrical with respect to the valley groove.

Additionally, the plurality of discharge holes may be formed in the lower part of the valley groove.

In addition, the plurality of discharge ports include: a lower discharge port formed on the lower curved surface to discharge air upward; a pair of front discharge ports formed on the opposing surfaces to discharge air in directions facing each other; and a pair of rear discharge ports formed on the opposing surface to be located rearward of the pair of front discharge ports and discharging air in directions facing each other.

Additionally, the pair of front discharge ports may have a smaller open area than the pair of rear discharge ports.

In addition, the plurality of doors include a lower door that opens and closes the lower discharge port; a front door that opens and closes the pair of front discharge ports; And it may include a rear door that opens and closes the pair of rear discharge ports.

In addition, the tower unit includes a rack connected to the door motor and moving in an upward and downward direction; and a connection link rotatably coupled to the rack and transmitting force to rotate the lower door as the rack moves.

In addition, the tower part is connected to the lower door and further includes a slide link that moves depending on the rotation of the lower door, and the front door and the rear door can rotate according to the movement of the slide link. .

In addition, the tower unit may further include a rotation guide that guides the rotation of the lower door and forms a rotation space that defines the rotation trajectory of the lower door.

In addition, the rotation guide may include a front rotation guide to which a door pin formed at the front end of the lower door is movably connected; And it may include a rear rotation guide to which the door pin formed at the rear end of the lower door is movably connected.

Additionally, the slide link includes a guide protrusion movably connected to the lower door; And it may include a bent portion extending from the guide protrusion to have a predetermined curvature.

Additionally, the front door or the rear door may be combined with an extension portion extending in a straight direction from the top of the bent portion.

Additionally, a link hole through which the front door or the rear door passes may be formed in the extension portion.

In addition, the tower portion includes a front frame that defines the front discharge port and is rotatably coupled to the door axis of the front door; And it may further include a rear frame defining the rear discharge port and rotatably coupled to the door axis of the rear door.

Additionally, the door axis of the front door may protrude in the front-back direction from the top of the front door, and the door shaft of the rear door may protrude in the front-back direction from the top of the rear door.

Additionally, the slide link may be coupled to a link coupling portion protruding from the bottom of the front door and the bottom of the rear door.

In addition, the slide link includes a front slide link coupled to the front door; And it may include a rear slide link coupled to the rear door.

In addition, the lower door includes a crank rotatably coupled to the connecting link; a front slide guide disposed spaced apart in front of the crank and coupled to the front slide link to be movable; And it may include a rear slide guide that is spaced apart from the rear of the crank and is movably coupled to the rear slide link.

Additionally, the front door and the rear door may be provided in plural pieces arranged in a vertical direction.

In addition, the tower unit includes a front slit door that opens and closes a front slit formed on the opposite surface to be located above the plurality of discharge ports; a rear slit door that opens and closes a rear slit formed on the opposite surface to be located rearward of the front slit door; And it may further include a control unit that controls the operation of the front slit door and the rear slit door.

In addition, the control unit operates in a general mode in which the air discharged by the front slit and the rear slit are mixed to provide a discharge airflow to the front, and the air discharged by the plurality of discharge openings is mixed and discharged upward of the valley groove. The plurality of doors can be controlled according to the selected mode among the surface wind modes in which airflow is provided.

Additionally, in the normal mode, the control unit may operate the front slit door and the rear slit door to open the front slit and the rear slit and close the plurality of discharge holes.

Additionally, when in the sleeping wind mode, the control unit may operate the plurality of doors to open the plurality of discharge ports and close the front slit and the rear slit.

According to the present invention, multi-directional, multiple, and multiple discharge ports can be operated to open and close by a single motor. Therefore, the number of parts can be minimized and there is an economic advantage.

According to the present invention, when entering the sleep wind mode, the main discharge port is closed to relatively block the airflow provided directly to the user, and the sub discharge port formed in the center of the blower is opened to discharge air in a direction to easily spread into the room. There is no need to lower the fan's rotation speed. Therefore, there is an advantage in that air cleaning performance can be maintained even in surface winds.

According to the present invention, a lower discharge port formed on the bottom surface of the valley groove to discharge air upward of the valley groove, a front discharge port located at the bottom of the valley groove and formed as a pair on opposing surfaces facing each other, and the front discharge port By providing a rear discharge port located at the rear, there is an advantage of generating a discharge airflow (“sleep wind”) that is relatively concentrated upward during the sleep wind mode, thereby spreading a gentle airflow throughout the room.

According to the present invention, the doors provided at the front discharge port and the rear discharge port are installed in a plurality of multi-stage shapes, and guide the air upward when rotating to open the discharge port, so that it is mixed with the air discharged from the lower discharge port and flows into the valley groove. It has the advantage of forming a discharge airflow that is directed relatively upward.

According to the present invention, there is an advantage that the lower discharge port, which discharges air upward, and the front discharge port and rear discharge port, which discharge air in opposite directions, can be simultaneously opened and closed by a single motor.

According to the present invention, it is possible to easily open and close multiple discharge ports in multiple directions by using a multi-link structure connected to a single motor.

According to the present invention, there is an advantage that the direction of force can be easily changed by using a ‘T’ shaped rack and a multiple link connection structure.

According to the present invention, there is an advantage that multiple doors with different rotation directions can be easily and conveniently operated.

According to the present invention, five discharge ports can be opened and closed through a door motor with one degree of freedom.

According to the present invention, multiple doors with different centers of rotation can be opened and closed simultaneously through a slide link.

According to the present invention, there is an advantage in that the discharge air can be smoothly guided by providing a multi-stage door that can open and close the front discharge port and the rear discharge port at the same time.

According to the present invention, there is an advantage in that the discharge airflow desired by the user can be selectively provided.

According to the present invention, there is an advantage in that a plurality of doors for opening and closing the discharge port are provided in a simple and easily movable structure.

According to the present invention, it is possible to provide a blower with a fan less structure and have a simpler design.

According to the present invention, there is an advantage of eliminating the risk of falling because the center of gravity is formed at the bottom and has a structure that is stably supported on the ground.

According to the present invention, a user can be provided with a comfortable airflow without draft even when exposed to wind for a long period of time.

1 is a perspective view showing a blower according to an embodiment of the present invention.
Figure 2 is a cross-sectional view taken along line Ⅰ-Ⅰ' of Figure 1.
Figure 3 is a diagram showing the combined configuration for opening and closing a plurality of discharge holes according to an embodiment of the present invention.
Figure 4 is a diagram showing a configuration for opening and closing a plurality of discharge holes according to an embodiment of the present invention.
5 to 7 are diagrams showing the process of opening multiple discharge holes according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

Additionally, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being “connected,” “coupled,” or “connected” to another component, that component may be directly connected or connected to that other component, but there is no need for another component between each component. It should be understood that may be “connected,” “combined,” or “connected.”

Figure 1 is a perspective view showing a blower according to an embodiment of the present invention, and Figure 2 is a cross-sectional view taken along line Ⅰ-Ⅰ' of Figure 1.

Referring to Figures 1 and 2, the blower 1 according to an embodiment of the present invention may include a support part 10 and a tower part 100 supported by the support part 10.

The support part 10 may form the lower part of the blower 1, and the tower part 100 may form the upper part of the blower 1. For example, the tower part 100 may be coupled to the upper part of the support part 10.

The blower 1 can suck in ambient air from the support part 10 and discharge purified air from the tower part 100. Accordingly, the tower unit 100 can discharge air at a higher position than the support unit 10.

The blower 1 may have a pillar shape whose diameter becomes smaller as it moves upward. For example, the blower 1 may have an approximately conical shape.

And the support part 10 and the tower part 100 may have an integrated shape. That is, the tower portion 100 may extend upward from the top of the support portion 10 so that its diameter continues to decrease. Accordingly, the support portion 10 and the tower portion 100 may have a continuous and smooth appearance.

The tower unit 100 may include a valley groove 120, which is a space open in the front-back direction along the central axis of the blower 1.

That is, the central axis of the blower 1 may be located in the valley groove 120. And the valley groove 120 may be formed as a space connecting the front and rear of the blower 1. For example, the valley groove 120 may be formed by extending an opening having a predetermined width at the front end of the tower unit 100 to the rear end of the tower unit 100 located directly opposite.

Meanwhile, the valley groove 120 can be formed by an opposing surface 111 and a lower curved surface 125, which will be described later. And the opposing surface 111 can be formed as a curved surface. Accordingly, the width of the valley groove 120 may be different in the front-to-back direction.

The bottom of the valley groove 120 may be defined by the lower curved surface 125. For example, the lower curved surface 125 has a curved surface that is depressed downward and may extend in the front-back direction.

Additionally, the valley groove 120 may extend in the vertical direction of the tower unit 100. For example, the valley groove 120 may extend downward from the upper surface of the tower unit 100 to vertically bisect the tower unit 100. Accordingly, the tower portion 100 may have a symmetrical shape due to the valley groove 120.

The width of the valley groove 120 may be constant in the vertical direction, unlike the front-to-back direction. Additionally, the vertical length (or depth of the valley groove) of the valley groove 120 may be greater than the vertical length (or height) of the support portion 10.

The valley groove 120 can guide the air discharged from the slit opened and closed by the front slit door 131 and the rear slit door 141 forward. That is, the air discharged from the slit may be mixed along the valley groove 120 to generate a discharge airflow flowing in front of the blower 1.

Meanwhile, the support part 10 may include a case 12 that forms the exterior.

The case 12 of the support portion 10 may also be called a “main case.”

The case 12 may be formed to have a shape integral with or continuous with the tower case 110 of the tower portion 100. For example, the case 12 may have a truncated cone shape whose diameter becomes smaller as it moves upward.

The lower end of the tower case 110 is formed to have the same diameter as the upper diameter of the case 12, and may be continuously extended so that the diameter becomes smaller toward the top. For example, the tower case 110 may have a substantially cone or truncated cone shape with a smaller diameter than the case 12. At this time, the valley groove 12 may be formed to penetrate the truncated cone-shaped tower case 12 in the front-to-back direction.

In addition, the support part 10 may further include a suction part 13 formed in the case 12 to introduce air.

The suction part 13 can be formed in various shapes. For example, the suction part 13 can be formed by drilling multiple holes. And the surrounding air of the suction unit 13 can be introduced into the interior through the plurality of holes.

As another example, the suction part 13 may be formed in a grill shape. When the suction part 13 has a grill shape, air surrounding the suction part 13 may be introduced into the interior through the space formed by the grill.

Additionally, the grill-shaped suction part 13 may replace the case 12 to form the appearance of the support part 10.

The air introduced into the suction unit 13 may flow into the tower unit 100 while passing through the filter.

The support portion 10 may further include a base 20 placed on the ground, a filter support portion 30 disposed on the base 20, and a filter (not shown) coupled to the filter support portion 30. .

The base 20 may be provided at the bottom of the case 12. Additionally, the base 20 may be located spaced apart from each other inside the case 12.

Air sucked through the suction unit 13 may pass through a filter (not shown) provided on the upper side of the base 20 and flow into the suction passage 45 formed inside the filter.

The filter may filter (or purify) the air sucked through the suction unit 13. For example, the filter may have a donut or cylindrical shape that is open along the central axis. Accordingly, the air flowing into the suction part 13 can pass through the outer peripheral surface of the cylindrical filter and flow into the suction passage 45.

The suction flow path 45 can be understood as a path through which air passing through the filter flows. And the air that has passed through the filter may flow to the fan 210 along the suction flow path 45.

The filter support portion 30 may be coupled to the upper surface of the base 20. That is, the lower surface of the filter support part 30 may be supported by the base 20.

The filter support unit 30 may include a support device 31 and a filter frame 35 that form a mounting space for the filter.

The support device 31 may form the lower part of the filter support part 30. And the filter frame 35 may form the upper part of the filter support part 30. The support device 31 may support the lower surface of the filter. For example, the support device 31 may have a ring shape. Additionally, the internal space of the support device 31 may form a lower portion of the suction passage 45.

The filter may be mounted on the support device 31. For example, the upper surface of the support device 31 may form a surface on which the filter is mounted.

Additionally, the support device 31 can fix the filter. In detail, a lever device that guides the attachment, detachment, or fixation of the filter may be located on the inner peripheral surface of the support device 31.

The filter frame 35 may be positioned spaced upward from the support device 31. For example, the filter frame 35 has an approximately ring shape.

The internal space of the filter frame 35 may form an upper portion of the suction passage 45. And the upper part of the filter frame 35 can support the fan housing 200.

Meanwhile, the filter support unit 30 may further include a plurality of filter pillars (not shown) extending upward from the support device 31 toward the filter frame 35. By the plurality of filter pillars, the support device 31 and the filter frame 35 can be spaced apart from each other.

The plurality of filter pillars may be arranged in the circumferential direction and connected to the edge of the support device 31 and the filter frame 35. The support device 31, the filter frame 35, and the filter pillar may form a mounting space for the filter.

The support part 10 includes a fan housing 200 located above the filter, a fan 210 that provides flow pressure to suck air into the suction part 13, and a fan 210 located above the fan 210. It may further include a diffuser 300 and a distribution duct 400 that guides air passing through the diffuser 300 to the tower unit 100.

The fan housing 200 can be installed on the outlet side of the filter.

The fan housing 200 can accommodate the fan 210. Additionally, the fan housing 200 may be supported by the filter frame 35.

An inflow grill 205 may be formed in the lower part of the fan housing 200 to guide the inflow of air into the fan housing 200.

That is, the inlet grill 205 may communicate with the suction passage 45. Since the inflow grill 205 is provided as a grill, it is possible to prevent a user from inserting his or her fingers into the fan housing 200 when the filter is separated.

The fan 210 may provide air flow pressure through rotation. Additionally, the fan 210 may be placed above the inflow grill 205.

The fan 210 may include a diagonal flow fan that introduces air in an axial direction and exhausts air in a diagonal direction.

In detail, the fan 210 includes a hub 211 to which the axis of a motor (not shown) is coupled, a shroud 213 spaced apart from the hub 211, and the hub 211 and the shroud 213. It may include a plurality of blades 215 disposed between.

The motor is installed in the motor receiving portion 310 of the diffuser 300, and the axis of the motor extends downward to be coupled to the hub 211.

The hub 211 may be formed in a shape corresponding to the motor receiving portion 310. For example, the hub 211 may have a bowl shape whose diameter narrows downward.

And the hub 211 may form a shaft coupling portion (not shown) to which the shaft of the motor is coupled. The shaft coupling portion may be formed on the inner peripheral surface of the hub 211.

The shroud 213 may form a central opening through which air passing through the inflow grill 205 is sucked. Additionally, the shroud 213 may form an outer opening through which air introduced through the central opening is discharged in a diagonal direction by the guide of the blade 215. The outer opening may be located above the central opening.

One side of the blade 215 may be coupled to the outer peripheral surface of the hub 211, and the other side may be coupled to the inner peripheral surface of the shroud 213.

The plurality of blades 215 may be arranged to be spaced apart in the circumferential direction of the hub 211.

The air that has passed through the filter may flow upward along the intake passage 45 and flow into the fan housing 200 through the inlet grill 205.

Additionally, the air flowing into the fan housing 200 may flow into the central opening (or axial direction) formed by the shroud 213 and be discharged in a diagonal direction through the blade 215. At this time, the blade 215 may be obliquely extended in a diagonal direction with respect to the axial direction so that air can flow in a diagonal direction through the outer opening.

The diffuser 300 may be located above the fan 210. And the diffuser 300 may guide the flow of air passing through the fan 210 to the internal space of the distribution duct 400.

The diffuser 300 may be connected to the top of the fan housing 200. For example, the diffuser 300 is formed to have the same outer diameter as the fan housing 200 and can be stacked on the fan housing 200. And the diffuser 300 may guide the air passing through the fan 210 to pass through the distribution duct 400 and rise to the tower unit 100.

The diffuser 300 may include an outer wall forming an outer perimeter and a motor receiving portion 310 located inside the outer wall and extending in the circumferential direction. And the diffuser 300 may further include a plurality of guide vanes 330 provided along the circumferential direction between the motor receiving portion 310 and the outer wall.

The diameter of the outer wall is larger than the diameter of the motor receiving portion 310. That is, the diameter of the outer wall can be understood as the outer diameter of the diffuser 300. Additionally, the diameter of the outer peripheral surface of the motor receiving portion 310 can be understood as the inner diameter of the diffuser 300.

The outer wall may be positioned radially spaced apart from the outer peripheral surface of the motor receiving portion 310. A guide passage 335 through which air passing through the fan 210 flows may be formed between the inner peripheral surface of the outer wall and the outer peripheral surface of the motor receiving portion 310. And the guide vane 330 that guides air upward may be disposed in the guide passage 335.

The motor receiving unit 310 may form an internal space. Additionally, a motor (not shown) connected to the hub 211 may be installed in the inner space of the motor receiving portion 310.

Additionally, a door motor 390, which will be described later, may be located in the inner space of the motor receiving portion 310. For example, the door motor 390 may be fixed by a receiving bracket 395 coupled to the motor receiving portion 310.

In addition, the receiving bracket 395 can fix the door motor 390 and support it to guide the vertical movement of the rack 500, which will be described later.

For example, a hole open in the vertical direction may be formed in a portion of the receiving bracket 395 to accommodate the rack 500. Additionally, the rack 500 located in the hole can be installed to be interlocked with the motor gear 391 coupled to the rotation axis of the door motor 390.

The lower portion 315 of the motor receiving portion 310 may have a bowl shape whose diameter decreases downward.

The shape of the lower part 315 of the motor receiving part 310 may correspond to the shape of the hub 211. And, the motor receiving part 310 may be located inside the hub 211.

Meanwhile, the axis of the motor for rotating the fan 210 extends downward from the motor, passes through the motor coupling hole formed at the lower center of the motor receiving portion 310, and is connected to the shaft coupling part of the hub 211. can be combined

A plurality of perforated sound-absorbing holes may be formed in the lower part 315 of the motor receiving portion 310. And, a sound-absorbing material (not shown) may be attached to the inside of the motor receiving portion 310 in response to the plurality of sound-absorbing holes.

The plurality of sound-absorbing holes can be formed to have a preset spacing along the outer peripheral surface 315 of the lower portion centered on the motor coupling hole. For example, the distance between the plurality of sound-absorbing holes may be set to 8 to 14 (mm).

A space may be formed between the outer peripheral surface of the lower part 315 of the motor receiving part and the hub 211 by a predetermined distance. Here, the space formed between the lower part 315 and the hub 211 is called an “air gap.”

Some of the air that has passed through the fan 210 may flow into the air gap. Air introduced into the air gap may cause friction and collision in the air gap due to pressure generated by the rotation of the fan 210. Ultimately, air flowing into the air gap may generate flow noise.

Therefore, using the plurality of sound-absorbing holes and sound-absorbing materials, the flow noise generated by the air gap can be minimized.

The plurality of sound-absorbing holes may have a preset diameter. For example, the diameter of the sound-absorbing hole may be set to 2 (mm).

The guide vane 330 may extend from the outer peripheral surface of the motor receiving portion 310 to the inner peripheral surface of the outer wall. A plurality of guide vanes 330 may be spaced apart along the circumferential direction.

The guide vane 330 may guide air flowing into the guide passage 335 of the diffuser 300 through the fan 210 upward.

The air introduced by the suction unit 13 and passing through the filter flows upward due to the flow pressure generated through the rotation of the fan 210. The air flowing upward may flow into the fan housing 200 and then rise in a diagonal direction while passing through the fan 210.

The air raised in the diagonal direction flows into the guide passage 335 of the diffuser 300, and the plurality of guide vanes 330 disposed in the guide passage 335 allow the air flowing into the guide passage 335 can be guided to flow upward.

Meanwhile, the air rising in the diagonal direction through the blade 215 may mostly have a fluidity component in the circumferential direction and a fluidity component in the radial direction. Accordingly, the air passing through the blade 215 may form a rotating vortex airflow and flow upward.

The plurality of guide vanes 330 can guide the air to rise stably by offsetting the fluidity that forms the swirling air current.

That is, the velocity components of the air passing through the guide vane 330 may have reduced radial and circumferential components. On the other hand, the axial component, that is, the upward velocity component, may be relatively large.

The distribution duct 400 may be located above the diffuser 300. And the distribution duct 400 can guide the air that rises through the diffuser 300.

In detail, the distribution duct 400 may be connected to the top of the diffuser 300. For example, the outer diameter of the bottom of the distribution duct 400 may be the same as the outer diameter of the top of the diffuser 300. That is, the distribution duct 400 can be combined with the outer wall of the diffuser 300. And the distribution duct 400 may extend from the outer wall to the bottom of the tower unit 100.

The distribution duct 400 may be located inside the case 12 and/or the tower case 110.

Additionally, the distribution duct 400 may have an inner peripheral surface on which smooth air flow is formed between the tower unit 100 and the diffuser 300.

A distribution passage 410 may be formed inside the distribution duct 400 to divert the air passing through the diffuser 300 into the internal space of the tower unit 100.

The distribution passage 410 may be formed to communicate with the first discharge passage and the second discharge passage of the tower unit 100. That is, the air flowing into the distribution passage 410 may branch and flow into the first discharge passage and the second discharge passage.

Hereinafter, the first discharge passage and the second discharge passage may be simply referred to as “discharge passage.”

Meanwhile, the tower unit 100 can be divided into a first tower located on one side with respect to the valley home 120 and a second tower located on the other side facing the first tower.

The first discharge passage may be defined as the internal space of the first tower. Additionally, the air flowing into the first discharge passage may be discharged to the outside through the front slit and/or rear slit formed on the opposing surface 111 of the first tower.

The second discharge passage may be defined as an internal space of the second tower. The air flowing into the second discharge passage may be discharged to the outside through the front slit and/or rear slit formed on the opposite surface of the second tower.

Here, the opposing surface of the first tower may be referred to as a first opposing surface, and the opposing surface of the second tower may be referred to as a second opposing surface.

The distribution duct 400 may guide air passing through the diffuser 300 to the first tower and the second tower of the tower unit 100.

The tower unit 100 may further include a tower case 110 that forms the exterior.

As described above, the tower case 110 may extend upward from the case 12 of the support portion 10 so that the overall diameter of the cross section becomes smaller. Additionally, the tower case 110 may be provided so that an open space is formed in the front-back direction along the central axis. Here, the open space can be understood as the valley home 120.

That is, the valley home 120 may be located in the center of the tower case 110. Accordingly, the tower portion 100 may have a symmetrical structure with respect to the valley groove 120.

In other words, the tower portion 100 can be formed as a symmetrical structure with the central axis as the axis of symmetry. Of course, the support part 10 can also be formed in a symmetrical structure with the central axis as the axis of symmetry.

For convenience of explanation, an imaginary vertical line 0 passing through the central axis in an open front and rear direction of the tower unit 100 is defined. (Refer to Figure 3)

Hereinafter, the virtual vertical line (L) may be referred to as a “baseline”. The reference line L may cross the valley groove 120 in the front-to-back direction. Accordingly, the blower 1 may have a structure that is symmetrical with respect to the reference line L.

Therefore, since the blower 1 according to an embodiment of the present invention is formed to be balanced based on the central axis or reference line L, the risk of overturning can be prevented.

The tower case 110 includes an outer surface part 115 that forms the exterior in the radial direction of the blower 1, an opposing surface part 111 and a lower curved part 125 that form the valley groove 120. It can be included.

For convenience of explanation, the outer surface part 115 is called an outer surface, the opposing surface part 111 is called an opposing surface, and the lower curved part 125 is called a lower curved surface.

The outer surface 115 may be formed along the circumferential direction of the tower portion 100. Accordingly, the outer surface 115 may form the outer surface of the tower case 110. For example, the outer surface 115 may form a circumferential surface of the tower case 110 extending upward from the case 12 of the support part 10 to have a smaller diameter. The outer surface 115 may extend along a semicircular arc based on the valley groove 120.

The opposing surface 111 may extend from the outer surface 115.

The opposing surface 111 and the lower curved surface 125 can be understood as a surface located at the center of the tower unit 100. And the center of the tower portion 100 may be formed with a valley groove 120 as described above.

That is, the opposing surface 111 defines both sides of the valley groove 120, and the lower curved surface 125 may define the bottom surface of the valley groove 120.

The opposing surface 111 may extend in an open front-back direction passing through the reference line L. Accordingly, the opposing surfaces 111 may be formed as surfaces facing each other in a space (“valley groove”) formed in the center of the tower unit 100.

As described above, the opposing surface 111 may include a first opposing surface and a second opposing surface facing each other so that the valley groove 120 is defined.

The opposing surface 111 may be formed as a curved surface that protrudes toward the central axis of the tower unit 100. Additionally, the first opposing surface and the second opposing surface may be spaced apart from each other at a predetermined distance. For example, the predetermined spacing (or width) may be closest to the central axis.

According to this, the air discharged from the rear slit and flowing toward the front of the valley groove 120 along the opposing surface 111 can flow faster due to the Venturi effect near the central axis, and the blower ( 1) The air flow in the forward direction can be further amplified.

The lower curved surface 125 may extend to connect the lower end of the first opposing surface and the lower end of the second opposing surface. And the lower curved surface 125 can be formed as a curved surface that is concavely depressed toward the reference line (L).

The tower unit 100 includes a front slit and a rear slit that discharge air introduced through the guide passage 335 of the diffuser 300, a front slit door 131 that opens and closes the front slit, and a front slit door 131 that opens and closes the rear slit. It may further include a rear slit door 141.

The front slit is located in the front part of the tower part 100 and can be opened and closed by the front slit door 131. For example, the front slit may be located in the front portion of the opposing surface 111. Accordingly, the front slit can discharge air from the front part of the valley groove 120.

In detail, the front slit and the front slit door 131 may be provided as a pair symmetrical to the first opposing surface and the second opposing surface with respect to the reference line L. Likewise, the rear slit and the rear slit door 141 may be provided as a pair symmetrical to the first opposing surface and the second opposing surface with respect to the reference line L.

The rear slit and the rear slit door 141 may be located at the rear of the tower unit 100. For example, the rear slit and the rear slit door 141 may be located at the rear of the opposing surface 111. Accordingly, the rear slit can discharge air from the rear portion of the valley groove 120.

The rear slit and the rear slit door 141 may be located rearward than the front slit and the front slit door 131. For example, the rear slit door 141 may be located rearward of the central axis of the tower unit 100.

Additionally, the front slit and the rear slit may be formed to be inclined toward the valley groove 120 and/or the reference line (L, see Figure 3).

In detail, the front slit and the rear slit may extend a space that guides air inclined forward toward the valley groove 120.

Accordingly, the air flowing along the internal space (discharge passage) of the first tower and the second tower is directed from the rear slit toward the front of the valley groove 120 by the Coanda effect. It can be discharged.

A nose face (not shown) may be formed inside the rear slit. The Coanda surface may be formed to impart a Coanda effect to the air discharged toward the valley groove 120. Here, the Coanda effect can be understood as having a tendency for a fluid, such as air, to stick to the surface of a solid and flow.

That is, the air flowing into the rear slit may be discharged from the rear part of the valley groove 120 along the co-anterior surface formed as a curved surface. Accordingly, the air discharged from the rear slit may be amplified by the Coanda effect and flow toward the front of the valley groove 120. And the discharged air may be guided along the surface of the opposing surface 111 and flow forward.

Additionally, air flowing along the internal space (discharge passage) of the first tower and the second tower may be discharged toward the front of the valley groove 120 according to the guide of the front slit.

That is, the front slit and the rear slit can guide the air in the discharge passage diagonally to discharge it into the valley groove 120.

Additionally, the front slit and the rear slit may be formed as slits extending in a straight line along the vertical direction of the blower 1 on the opposing surface 111.

And the front slit door 131 and the rear slit door 141 are formed to correspond to the front slit and the rear slit, and the air rising inside the tower unit 100 enters the front slit or the rear slit. It can be movably installed to allow (or interrupt) discharge of the valley groove 120 through the slit.

The front slit door 131 and the rear slit door 141 are located inside the tower case 1110 and can rotate to open and close the corresponding front and rear slits, respectively. For example, the front slit door 131 and the rear slit door 141 are provided with separate drive assemblies, and the control unit of the blower 1 can control rotation according to the normal mode or water wind mode to be described later. there is.

In addition, the front slit door 131 is located at the front of the opposing surface 111 so as to be located above the plurality of discharge holes 125c, 151, 156, 161, 166 (hereinafter, “sub discharge holes”) formed in the lower part of the valley groove 120. It can be located in .

Additionally, the rear slit door 141 may be located at the rear of the opposing surface 111 so as to be located above the plurality of discharge holes 125c, 151, 156, 161, and 166.

In addition, the tower part 100 is disposed inside the tower case 110 and includes an internal vane ( (not shown) may further be included.

The inner vane can vertically divert the air that flows into the tower case 110 through the guide passage 335 and rises toward the front slit or the rear slit. For example, the lower surface of the inner vane may be formed as a curved surface.

Additionally, the tower unit 100 may further include a heater (not shown) that heats the air passing through the discharge passage. The heater (not shown) may be installed inside the tower case 110 to heat the air rising from the guide passage 335 to the discharge passage. For example, the heater may include a PTC heater.

The front slit and rear slit described above can be called the “main discharge port” of the blower (1). In addition, the operating mode in which the discharge airflow formed by mixing the air discharged from the main discharge port is provided forward can be defined as “normal mode.”

The general mode can be generally understood as a mode for providing a direct and comfortable airflow to a user located in front of the blower (1).

Hereinafter, the air flow in the normal mode in which air is discharged through the main discharge port will be briefly described.

First, ambient air may flow into the suction part 13 located at the bottom of the blower 1. The air may pass through a filter (not shown), flow into the suction passage 45, and pass through the fan 210 that provides flow pressure.

The air passing through the fan 210 rises along the guide passage 335 of the diffuser 300 and may branch into the first tower and the second tower while passing through the distribution passage 410. That is, the air that diverges to the first tower and the second tower and rises may flow through the discharge passage.

And the air flowing through the discharge passage can be discharged into the front slit and the rear slit opened by the front slit door 131 and the rear slit door 141. At this time, the air discharged through the rear slit may be directed to the front of the valley groove 120 due to the Coanda effect. And in front of the valley groove 120, it may be mixed with the air discharged from the front slit to generate a discharge airflow.

Therefore, the discharge airflow is directed relatively forward, and can provide direct and comfortable air to the user.

The blower 1 may further include a control unit (not shown) for controlling the operating mode.

The control unit (not shown) can control the operations of the front slit door 131 and the rear slit door 141 that open and close the main discharge port.

In addition, the control unit can control the operations of the lower doors 190, 195, front doors 170, 175, and rear doors 180, 185, which open and close a plurality of discharge holes 125c, 151, 156, 161, and 166, which will be described later.

Here, the plurality of discharge ports 125c, 151, 156, 161, and 166 may be referred to as “sub discharge ports.” The sub-discharge port can discharge air in a surface wind mode.

Meanwhile, the blower 1 according to an embodiment of the present invention may operate in any one of the general mode and the sleep wind mode in which the discharge airflow is not directly directed toward the user to create a sleeping environment for the user.

For example, the control unit may control the main discharge port and the sub discharge port to be opened and closed according to the mode selected by the user among the normal mode and the sleep wind mode.

When operating in the normal mode, air is discharged through the main discharge port and mixed in the valley groove 120 to provide a discharge airflow to the user in front. At this time, the plurality of discharge holes 125c, 151, 156, 161, and 166 formed in the lower part of the valley groove 120, which will be described later, may be maintained in a closed state.

When operating in the water wind mode, the main discharge port may be closed by the front slit door 131 and the rear slit door 141.

And in the surface wind mode, the plurality of discharge ports 125c, 151, 156, 161, and 166 formed in the lower part of the valley groove 120 may be opened to generate discharge airflow. At this time, the discharge airflow may flow upward of the valley groove.

Therefore, in the sleep wind mode, the discharged airflow rises along the valley groove 120 and spreads throughout the room to have a relatively small wind speed, thereby providing a gentle airflow to ensure the user's sleeping environment. there is.

That is, the tower unit 100 has a plurality of discharge openings 125c, 151, 156, 161, 166 formed in the lower part of the valley groove 120 and the plurality of discharge openings 125c, 151, 156, 161, 166 to discharge air in the surface wind mode. It may further include a plurality of doors (170, 175, 180, 185, 190, 195) that open and close.

In other words, the sub-discharge holes 125c, 151, 156, 161, and 166 may be formed in the lower part of the valley groove 120. The sub discharge ports 125c, 151, 156, 161, and 166 may discharge air from the lower part of the valley groove 120 to the upper part of the valley groove 120.

Accordingly, in the surface wind mode, the discharge airflow provided by the blower 1 may rise and spread toward the indoor ceiling.

The sub-discharge ports 125c, 151, 156, 161, and 166 may be located below the lower ends of the front slit and the rear slit.

Additionally, the plurality of discharge holes 125c, 151, 156, 161, and 166 may discharge air into the valley groove 120 from different directions. That is, the plurality of discharge holes 125c, 151, 156, 161, and 166 may be formed to discharge air in multiple directions.

For example, the multi-direction may be a direction in which the opposing surface 111 faces and a direction looking from the bottom of the valley groove 120 to the top of the valley groove 120.

In more detail, the plurality of discharge ports (125c, 151, 156, 161, 166) include a pair of front discharge ports (151, 156) formed on the opposing surface (111) and discharging air in directions facing each other, and a pair of front discharge ports (151, 156). It may include a pair of rear discharge ports 161 and 166 formed on the opposing surface 111 to be located further rearward.

The pair of rear discharge ports 161 and 166 can also discharge air in directions facing each other.

The pair of front discharge ports 151 and 156 may be located above the lower curved surface 125 and below the front slit. Additionally, the pair of rear discharge ports 161 and 165 may be located above the lower curved surface 125 and below the rear slit.

Additionally, the pair of front discharge ports 151 and 156 may have a smaller open area than the pair of rear discharge ports 161 and 166.

Accordingly, in the surface wind mode, the air flow rate toward the front of the blower 1 can be further reduced, and the air flow rate rising from the rear portion of the valley groove 120 can be further increased.

The pair of front discharge ports 151 and 156 can be divided into a first front discharge port 151 formed on the first opposing surface and a second front discharge port 156 formed on the second opposing surface. The first front outlet 151 and the second front outlet 155 may be formed to be symmetrical with respect to the reference line L.

The pair of rear discharge ports 161 and 166 can be divided into a first rear discharge port 161 formed on the first opposing surface and a second rear discharge port 166 formed on the second opposing surface. Likewise, the first rear outlet 161 and the second rear outlet 166 may be formed to be symmetrical with respect to the reference line L.

The plurality of doors 170, 175, 180, 185, 190, and 195 may be formed to be symmetrical with respect to the valley groove 120 and/or the reference line L.

Additionally, the plurality of doors (170, 175, 180, 185, 190, and 195) can simultaneously open and close the plurality of discharge ports (125c, 151, 156, 161, and 166). For example, the plurality of doors 170, 175, 180, 185, 190, and 195 may be simultaneously opened and closed by a plurality of link mechanisms connected to the door motor 390.

Additionally, the plurality of doors 170, 175, 180, 185, 190, and 195 may have rotation centers at different positions.

In addition, the plurality of doors (170, 175, 180, 185, 190, 195) may include front doors (170, 175) that open and close the pair of front outlets (151, 156) and rear doors (180, 185) that open and close the pair of rear outlets (161, 166). there is.

The front doors 151 and 156 and the rear doors 180 and 185 may be rotatable.

Additionally, the air discharged from the front outlets 151 and 156 and the rear outlets 161 and 166 may be guided upward along a rotated surface of the front doors 170 and 175 or the rear doors 180 and 185. According to this, the flow component of air rising along the valley groove 120 in the surface wind mode can be strengthened.

For example, the front doors (170, 175) and the rear doors (180, 185) rotate to have a predetermined inclination angle with the reference line (L) when the front discharge ports (151, 156) and the rear discharge ports (161, 166) are opened. can do.

The predetermined inclination angle may be preset as an angle at which the air discharged from the front discharge ports 151 and 156 and the rear discharge ports 161 and 166 is rotated toward the top of the valley groove 120.

Figure 3 is a diagram showing a combined configuration for opening and closing a plurality of discharge ports according to an embodiment of the present invention, and Figure 4 is a diagram showing a configuration for opening and closing a plurality of discharge ports according to an embodiment of the present invention.

3 and 4, the front doors 170 and 175 include a first front door 170 that opens and closes the first front outlet 151, and a second front door that opens and closes the second front outlet 156. It can be classified as (175). The first front door 170 and the second front door 175 may be formed to be symmetrical with respect to the reference line L.

The rear doors 180 and 185 can be divided into a first rear door 180 that opens and closes the first rear outlet 161, and a second rear door 185 that opens and closes the second rear outlet 185.

Meanwhile, the front doors 170 and 175 may be provided in a plurality arranged in the vertical direction of the front discharge ports 151 and 156. That is, the front doors 170 and 175 are formed in multiple stages and can rotate to open and close the front discharge ports 151 and 156.

Likewise, the rear doors 180 and 185 may be provided in plural numbers arranged in the vertical direction of the rear discharge ports 161 and 166. That is, the rear doors 180 and 185 are formed in multiple stages and can rotate to open and close the rear discharge ports 161 and 166.

Meanwhile, the front doors 170 and 175 may include door axes 171 and 176 that protrude in the front and rear directions to form a rotation axis at the top, and a link coupling portion 177 to which front slide links 550 and 560, which will be described later, are coupled.

The door axes 171 and 176 may be formed to protrude in the front and rear direction from the top of the front doors 170 and 175. For example, the door shafts 171 and 176 may have a cylindrical shape.

The door shafts 171 and 176 may be rotatably coupled to shaft fixing portions 152 and 157 formed on the front frames 150 and 155, which will be described later. For example, the door shafts 171 and 176 may be fitted into the shaft fixing portions 152 and 157.

The link coupling portion 177 may protrude from the bottom of the front doors 170 and 175 in an inward direction toward the discharge passage.

The link coupling portion 177 may be coupled to the front slide links 550 and 560 so as to rotate according to the rotation or movement of the front slide links 550 and 560. For example, the link coupling portion 177 may be formed to penetrate and be inserted into the link hole 563 formed in the front slide links 550 and 560.

The configuration of the front doors 170 and 175 may be the same as that of the rear doors 180 and 185.

That is, the rear doors 180 and 185 may also include door axes 181 and 186 that protrude in the front and rear directions to form a rotation axis at the top, and a link coupling portion 187 to which rear slide links 570 and 580, which will be described later, are coupled.

Therefore, the description of the door shafts 181 and 186 and the link coupling portion 187 of the rear doors 180 and 185 refers to the description of the front doors 170 and 175 described above.

Meanwhile, the tower unit 100 defines the front discharge ports 151 and 156, and defines front frames 150 and 155 and rear discharge ports 161 and 166 to which the door axes of the front doors 170 and 175 are rotatably coupled, , The door axes of the rear doors 180 and 185 may further include rear frames 160 and 165 to which the rear doors 180 and 185 are rotatably coupled.

The front frames 150 and 155 and the rear frames 160 and 165 may be positioned to be aligned on the opposing surface 111 in the front-to-back direction.

The front frames 150 and 155 may include shaft fixing portions 152 and 157 to which the door shafts 171 and 176 of the front doors 170 and 175 are rotatably coupled.

The shaft fixing portions 152 and 157 may be formed to protrude from the inner surfaces of the front frames 150 and 155 in an inward direction toward the discharge passage. Additionally, the shaft fixing portions 152 and 157 may form holes that are open in the front and rear direction so that the door shafts 171 and 176 can be rotatably inserted. For example, the door shafts 171 and 176 may be formed in a ‘C’ shape.

Likewise, the rear frames 160 and 165 may include shaft fixing portions 162 and 167 to which the door shafts 181 and 186 of the rear doors 180 and 185 are rotatably coupled. The description of the shaft fixing parts 162 and 167 of the rear frames 160 and 165 refers to the description of the front frames 150 and 155.

Meanwhile, the plurality of discharge openings 125c, 151, 156, 161, and 166 may further include a lower discharge opening 125c formed on the lower curved surface 125 to discharge air rising by the diffuser 300 upward.

The lower discharge port 125c may be formed at the bottom of the valley groove 120. That is, the lower discharge port 125c can be formed as an opening that opens in the vertical direction on the upper surface 125a of the lower curved surface 125.

Accordingly, when the lower discharge port 125c is opened, the air rising by the diffuser 300 can be discharged upward from the lower discharge port 125c.

Therefore, the air is discharged upward from the bottom of the valley groove 120 by the plurality of discharge ports 125c, 151, 156, 161, and 166, and the air is discharged at an angle upward from the lower part of the opposing surface 111 so as to face each other on the opposing surface 111. The air may be mixed to create a discharge airflow, and the discharge airflow may flow relatively upward along the valley groove 120 and spread throughout the room.

Meanwhile, the tower unit 100 may include a door motor 390 that provides force to rotate the plurality of doors 170, 175, 180, 185, 190, and 195.

The blower 1 according to an embodiment of the present invention is equipped with a single motor 390, and can reciprocate the plurality of doors 170, 175, 180, 185, 190, and 195 by the single motor 390. That is, the plurality of doors (170, 175, 180, 185, 190, 195) can be rotated by the force provided by the single door motor 390/

The door motor 390 may include a step motor.

The door motor 390 has one degree of freedom and can provide force to move the lower doors 190 and 195, which will be described later, in both directions.

As described above, the door motor 390 may be installed in the inner space of the motor receiving portion 310. And the door motor 390 can be supported by the receiving bracket 395.

A motor gear 391 may be coupled to the rotation axis of the door motor 390. The motor gear 391 may have teeth formed along the circumferential direction.

The tower unit 100 rotates on the rack 500 connected to the door motor 390 and the upper ends 502 on both sides of the rack 500 to convert the rotational movement of the door motor 390 into linear movement. It may further include connecting links 510 and 520 that can be combined.

The rack 500 may form a tooth portion 501 that engages with the motor gear 391. The teeth 501 may be formed at the bottom of the rack 500 to extend in the vertical direction. Accordingly, the rack 500 can move up and down as the motor gear 391 rotates.

The rack 500 can perform the function of changing the rotation of the door motor 390 into an up and down movement.

The lower part of the rack 500 may be located in the inner space of the motor receiving part 310, and the upper part of the rack 500 may be located above the motor receiving part 310. For example, the rack 500 may have a ‘T’ shape.

The upper part 502 of the rack 500 may include rack joints 502 and 504 rotatably coupled to the connecting link 420 at both ends. The rack joints 502 and 504 protrude in a direction perpendicular to the vertical extension direction of the rack 500, and can be rotatably connected to the connection rings 511 and 521 of the connection links 510 and 520 to be rotatably inserted or penetrated.

That is, the rack joints 502 and 504 include a first rack joint 502 formed on one side of the upper part 502 of the rack and a second rack joint 504 formed on the other side of the upper part 502 of the rack. may include.

The first rack joint 502 is coupled to a connecting ring 511 forming a hole at one end of the first connecting link 510, and the second rack joint 520 is connected to a second connecting link ( It can be coupled to the connecting ring 521 that forms a hole at one end of 520).

The connection links 510 and 520 may include a first connection link 510 and a second connection link 520, as described above. The first connection link 510 and the second connection link 520 may have the same configuration and be positioned symmetrically with respect to the reference line L. The first connection link 510 may be connected to the first lower door 190 to transmit force, and the second connection link 520 may be connected to the second lower door 195 to transmit force.

That is, the connecting links 510 and 520 are rotatably coupled to the rack 500 and move in dependence on the vertical movement of the rack 500, thereby transmitting a force that causes the lower doors 190 and 195 to rotate. there is.

The connecting links 510 and 520 may form joint rings 512 and 522 for transmitting force to the lower doors 190 and 195. The joint rings 512 and 522 may have a hole formed at the other end opposite to the connecting rings 511 and 521.

Specifically, the joint ring 512 of the first connection link 510 is connected to the first lower door 190, and the joint ring 522 of the second connection link 520 is connected to the second lower door 195. ) can be connected to.

In detail, the plurality of doors 170, 175, 180, 185, 190, and 195 may further include lower doors 190 and 195 that open and close the lower discharge port 125c.

The lower doors 190 and 195 may be opened and closed to form a curve in both directions based on the reference line L.

The lower doors 190 and 195 may include a first lower door 190 that opens toward the first opposing surface and a second lower door 195 that opens toward the second opposing surface.

The first lower door 190 and the second lower door 195 may close the lower discharge port 125c while contacting each other at the reference line L.

The lower doors 190 and 195 are connected to the connecting links 510 and 520 to open and close the lower discharge port 125c formed on the bottom of the valley groove 120.

Additionally, the lower doors 190 and 195 can open and close the lower discharge port 125c by drawing an arc along the guides of the rotation guides 530 and 540, which will be described later.

The upper surfaces of the lower doors 190 and 195 may be extended to have the same curvature as the lower curved surface 125. For example, the lower doors 190 and 195 may have a ‘C’ shaped cross section.

Additionally, the lower doors 190 and 195 may include cranks 191 and 196 rotatably coupled to the connecting links 510 and 520.

The cranks 191 and 196 may extend diagonally from the bottom of the center of the lower doors 190 and 195 toward the discharge passage. The cranks 191 and 196 can be divided into a first crank 191 protruding from the central lower surface of the first lower door 190 and a second crank 196 protruding from the central lower surface of the second lower door 195. there is.

The cranks 191 and 196 may extend in a straight line from the lower side edges of the lower doors 190 and 195.

Additionally, joint protrusions 196a may be formed at the extended ends of the cranks 191 and 196 to be rotatably coupled to the joint rings 512 and 522 of the connecting links 510 and 520. The joint protrusion 196a may protrude in a vertical direction in the extension direction of the cranks 191 and 196 to be inserted into and penetrate the joint rings 512 and 522.

That is, the cranks 191 and 196 are moved by the movement of the connecting links 510 and 520, and the cranks 191 and 196 are formed integrally with the lower surfaces of the lower doors 190 and 195, so that the lower doors 190 and 195 are opened. Alternatively, a closing operation may be performed.

Meanwhile, the rotation centers of the lower doors (190, 195) are located differently from the rotation centers of the front doors (170, 175) that open and close the front discharge ports (151, 156) and the rear doors (180, 185) that open and close the rear discharge ports (161, 166). Accordingly, the rotation trajectory of the lower doors (190, 195) is different from the rotation trajectory of the front doors (170, 175) and the rear doors (180, 185).

In addition, the lower doors 190 and 195 may include slide guides 192, 197 and 198 that protrude inward to be driven simultaneously with the front doors 170 and 175 and the rear doors 180 and 185 even though their rotation trajectories are different.

The slide guides 192, 197, and 198 may extend diagonally from the front and rear surfaces of the lower doors 190 and 195 toward the discharge passage.

And the slide guides (192, 197, 198) include a front slide guide (192, 197) formed at a quarter of the length in the front-back direction on the lower surface of the lower door (190, 195) and a rear slide formed at three-quarters of the length in the front-back direction. May include guide 198.

The front slide guides 192 and 197 can transmit force to the front doors 170 and 175, and the rear slide guide 198 can transmit force to the rear doors 180 and 185.

The front slide guides 192 and 197 are arranged spaced apart in front of the cranks 191 and 196, and the front slide links 550 and 560 coupled to the link coupling portions 177 of the front doors 170 and 175 can be movably coupled. there is.

The rear slide guide 198 is disposed spaced apart from the rear of the cranks 191 and 196, and the rear slide links 580 and 570 coupled to the link coupling portions 187 of the rear doors 180 and 185 can be movably coupled. there is.

Meanwhile, the slide guides 192, 197, and 198 may form guide holes 197a and 198a that are open in the front and rear direction along the inner peripheral surface. The guide holes 197a and 198a may be formed to extend downwardly from the lower surfaces of the lower doors 190 and 195.

The guide protrusions 582 of the slide link are coupled to the guide holes 197a and 198a, and can move along the inner peripheral surface of the slide guides 192, 197 and 198.

Meanwhile, door pins 194, 199, and 199a may be formed at the front and rear ends of the lower doors 190 and 195 to guide the rotation direction of the lower doors 190 and 195.

The door pins (194, 199, 199a) may include a front door pin (194, 199) protruding forward from the front end of the lower door (190, 195) and a rear door pin (199a) protruding rearward from the rear end of the lower door (190, 195). You can.

The door pins 194, 199, and 199a may be movably connected to the rotation guides 530 and 540.

The tower unit 100 may further include rotation guides 530 and 540 that guide the rotation of the lower doors 190 and 195 and form rotation spaces 532, 536, and 546 that define rotation trajectories of the lower doors 190 and 195. there is.

The rotation guide (530, 540) is a front rotation guide (530) that forms a rotation space (532, 536) in which the front door pins (194, 199) formed at the front end of the lower door (190, 195) move and the rear end of the lower door (190, 195). It may include a rear rotation guide 540 that forms a rotation space 546 in which the rear door pin 199a moves.

The front rotation guide 530 includes a first front rotation guide 531 and a second rotation space forming a first rotation space 532 so as to be symmetrical by a partition wall 530a corresponding to the reference line L. It can be divided into a second front rotation guide 535 forming 536).

The front door pin 194 formed at the front end of the first lower door 190 can move along the first front rotation guide 531 in the first rotation space 532, and the second lower door ( The front door pin 199 formed at the front end of the door 195) can move along the second front rotation guide 535 in the second rotation space 536.

The rear rotation guide 540 can also be formed to have the same configuration as the front rotation guide 530.

Meanwhile, the rack 500 and the lower doors 190 and 195 may be formed using a slider-crack mechanism. Here, the rack 500 can function as a slider, and the lower doors 190 and 195 can function as cranks.

That is, when the rack 500 moves upward, the two connecting links 510 and 520 coupled to the upper ends of both sides of the rack 500 rotate outward (see arrows in Figure 5), and the connecting links 510 and 520 The combined cranks 191 and 196 can rotate in both directions (see arrows in Figure 5) and rotate all of the lower doors 190 and 195.

Accordingly, the lower discharge port 125c is opened and the air guided upward by the diffuser 300 can be discharged to rise toward the valley groove 120.

As described above, the tower unit 100 is connected to the lower doors 190 and 195 and may further include slide links 550, 560, 570 and 580 that move depending on the rotation of the lower doors 190 and 195.

The slide links (550, 560, 570, 580) may include front slide links (550, 560) connected to the front doors (170, 175) and rear slide links (570, 580) connected to the rear doors (180, 185).

That is, the front doors (170, 175) and the rear doors (180, 185) can rotate according to the movement of the slide links (550, 560, 570, and 580).

The front slide links (550 and 560) may be located ahead of the rear slide links (570 and 580). In addition, the front slide links 550 and 560 include a first front slide link 550 connected to the first front door 170 and a second front slide link 560 connected to the second front door 175. can be distinguished.

Likewise, the rear slide links 570 and 580 include a first rear slide link 570 connected to the first rear door 180 and a second rear slide link 580 connected to the second rear door 185. can be distinguished.

Meanwhile, the slide links (550, 560, 570, 580) have guide protrusions (582) movably coupled to the guide holes (197a, 198a) of the slide guides (191, 197, 198), and have a predetermined curvature from the guide protrusions (582). It may include extended bent portions 551, 571, 561, 581 and extension portions extending in a straight direction from the top of the bent portions 551, 571, 561, 581.

Link holes 563 and 583 may be formed in the extension portion to couple to the link coupling portions 177 and 187 formed at the bottom of the front doors 170 and 175 and the rear doors 180 and 185.

The link holes 563 and 583 may be formed as holes through which the link coupling portions 177 and 187 of the front door or the rear door penetrate. In addition, the link holes 563 and 583 may be formed in plural numbers along the extension direction of the extension portion to correspond to the number of front doors and rear doors provided in the vertical direction.

The guide protrusion 582 may protrude to have a pin shape at the ends of the bent portions 551, 571, 561, and 581. The guide protrusion 582 receives force from the slide guides 191, 197, and 198 that move along the rotation of the lower doors 190 and 195, and the slide links 550, 560, 570, and 580 can rotate or move accordingly.

Below, the operating principles for opening and closing the lower discharge port, front discharge port, and rear discharge port will be described in detail.

5 to 7 are diagrams showing the process of opening multiple discharge ports according to an embodiment of the present invention.

Referring to FIGS. 5 to 7, when the rack 500 moves upward according to the operation of the door motor 390, two connecting links 510 and 520 are coupled to the upper ends 502 on both sides of the rack 500. It can rotate outward (arrow). For example, the operation of the door motor 390 may be controlled by a controller.

In addition, the cranks 191 and 196 coupled to the connecting links 510 and 520 can rotate all of the lower doors 190 and 195 by rotating in both opening directions as the connecting links 510 and 520 move.

Here, the rotation direction or movement trajectory of the lower doors (190, 195) is defined by the rotation guide (530, 540) to which the door pins (194, 199, 199a) are connected, so the lower doors (190, 195) allow the rotation space (532, 536). It can rotate to move away from the reference line (L) in both directions along the direction.

Accordingly, the lower discharge port 125c is opened so that the air guided upward by the diffuser 300 can be discharged to rise toward the valley groove 120.

At the same time, the slide guides 192, 197, and 198 may also move along the rotation of the lower doors 190 and 195. Accordingly, the guide protrusion 582 coupled to the slide guides 192, 197, and 198 receives force along the moving direction of the slide guides 192, 197, and 198.

Accordingly, the guide protrusion 582 can move outward along the guide holes 197a and 198a defined by the inner peripheral surfaces of the slide guides 192, 197, and 198.

And along with the movement of the guide protrusion 582, the bent portion 581 and the extension portion that are integrally connected may also rotate or move along the movement trajectory of the guide protrusion 582.

Accordingly, the slide links (550, 560, 570, and 580) can rotate depending on the movement of the slide guides (192, 197, and 198).

Ultimately, the front doors (170, 175) and rear doors (180, 185) coupled to the slide links (550, 560, 570, 580) rotate around the door axis (171, 176, 181, 186) (arrow in Figure 7), and the rotated front door and rear door may have an inclination so that the air in the discharge passage faces upward of the valley groove 120.

Accordingly, air is discharged upward from the front discharge ports 151 and 156 and the rear discharge ports 161 and 166, and can be mixed with the air discharged from the lower discharge port 125c to generate an upward discharge airflow.

Meanwhile, the above-described door motor, rack, connecting link, lower door, rotation guide slide link, front door, and rear door may be collectively referred to as an “opening and closing device.”

1: Blower
10: support part
100: Tower part
110: Tower case
120: Valley Home

Claims (24)

a support portion including a suction portion through which air is sucked and a filter that purifies the air sucked into the suction portion;
a tower portion extending upward from the support portion and discharging air that has passed through the filter; and
It is formed in the tower portion and includes a valley groove that is open in the front and rear direction along the central axis,
The tower part,
A tower case including opposing surfaces facing each other to define the valley groove and a lower curved surface connecting lower ends of the opposing surfaces;
a plurality of discharge ports formed at the bottom of the valley groove and discharging air from different directions into the valley groove;
a plurality of doors that open and close the plurality of discharge openings and are rotatably installed at each discharge opening;
A door motor that provides force to rotate the plurality of doors; and
A blower including a slit located above the plurality of discharge ports and formed on the opposing surface.
According to claim 1,
The door motor is provided as a single door motor,
A blower in which the plurality of doors rotate by force provided by the single door motor.
According to claim 1,
The plurality of doors simultaneously open and close the plurality of discharge ports.
According to claim 1,
The plurality of doors are blowers having rotation centers at different positions.
According to claim 1,
The plurality of doors are formed to be symmetrical with respect to the valley groove.
delete According to claim 1,
The plurality of discharge ports are,
a lower discharge port formed on the lower curved surface to discharge air upward;
a pair of front discharge ports formed on the opposing surfaces to discharge air in directions facing each other; and
A blower comprising a pair of rear discharge ports formed on the opposing surface to be located rearward of the pair of front discharge ports and discharging air in directions facing each other.
According to claim 7,
A blower wherein the pair of front discharge ports have a smaller opening area than the pair of rear discharge ports.
According to claim 7,
The plurality of doors are,
a lower door that opens and closes the lower discharge port;
a front door that opens and closes the pair of front discharge ports; and
A blower including a rear door that opens and closes the pair of rear discharge ports.
According to clause 9,
The tower part,
A rack connected to the door motor and moving in an upward and downward direction; and
The blower is rotatably coupled to the rack and further includes a connecting link that transmits force to rotate the lower door as the rack moves.
According to claim 10,
The tower part,
It is connected to the lower door and further includes a slide link that moves depending on the rotation of the lower door,
The front door and the rear door are blowers that rotate according to the movement of the slide link.
According to claim 11,
The tower unit further includes a rotation guide that guides the rotation of the lower door and forms a rotation space that defines the rotation trajectory of the lower door.
According to claim 12,
The rotation guide is,
a front rotation guide to which a door pin formed at the front end of the lower door is movably connected; and
A blower including a rear rotation guide to which a door pin formed at the rear end of the lower door is movably connected.
According to claim 11,
The slide link is,
a guide protrusion movably connected to the lower door; and
It includes a bent portion extending from the guide protrusion to have a predetermined curvature,
The front door or the rear door,
A blower coupled with an extension part extending in a straight line from the top of the bent part.
According to claim 11,
The tower part,
a front frame defining the front discharge port and rotatably coupled to the door axis of the front door; and
The blower further includes a rear frame defining the rear discharge port and rotatably coupled to the door axis of the rear door.
According to claim 15,
The door axis of the front door protrudes in the front-back direction from the top of the front door,
The door axis of the rear door is a blower that protrudes in the front and rear direction from the top of the rear door.
According to claim 16,
The slide link is a blower coupled to a link coupling portion protruding from the bottom of the front door and the bottom of the rear door.
According to claim 11,
The slide link is,
a front slide link coupled to the front door; and
A blower including a rear slide link coupled with the rear door.
According to claim 18,
The lower door is,
A crank rotatably coupled to the connecting link;
a front slide guide spaced apart from the front of the crank and movably coupled to the front slide link; and
A blower including a rear slide guide spaced apart from the rear of the crank and movably coupled to the rear slide link.
According to clause 9,
The front door and the rear door are a plurality of blowers arranged in a vertical direction.
According to claim 1,
The slit is,
It includes a front slit adjacent to the front end of the tower portion and a rear slit adjacent to the rear end of the tower portion,
The tower part,
A front slit door that opens and closes the front slit;
a rear slit door that opens and closes the rear slit; and
A blower further comprising a control unit that controls operations of the front slit door and the rear slit door.
According to claim 21,
The control unit,
A general mode in which the air discharged by the front slit and the rear slit are mixed to provide a discharge airflow to the front, and a surface wind in which the air discharged by the plurality of discharge holes is mixed to provide a discharge airflow upward of the valley groove. A blower that controls the plurality of doors according to the selected mode.
According to claim 22,
When the control unit is in the normal mode,
Operating the front slit door and the rear slit door to open the front slit and the rear slit,
A blower that closes the plurality of discharge ports.
According to claim 22,
When the control unit is in the sleeping wind mode,
Operating the plurality of doors to open the plurality of discharge ports,
A blower that closes the front slit and the rear slit.

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