KR102521854B1 - Blower - Google Patents

Abstract

The present invention relates to a blower, and a blower according to an embodiment of the present invention includes a case including a lower case having an air inlet and an upper case having an air outlet and disposed above the lower case; a base disposed below the case and supporting the case; a fan disposed inside the case; a heater disposed inside the upper case; a first substrate seated on the base and controlling power supply to the fan; and a second board connected to an external power source to control the supply of power to the heater, the second board being seated on the base to be spaced apart from the first board, and power supplied from the external power source to the heater. By being electrically connected to the first substrate so as to bypass the first substrate and seating the first and second substrates on the base, there is an advantage in that the space for arranging the substrate can be efficiently utilized.

Description

blower {Blower}

The present invention relates to a blower, and more particularly to a substrate for controlling a fan and a heater.

A blower causes a flow of air to circulate the air in an indoor space or to form an airflow toward a user. When the blower is equipped with a filter, the blower can purify the polluted air in the room and improve the quality of the indoor air.

A heater may be disposed in the blower to provide warm air to a user by increasing the temperature of air discharged, and AC power may be applied to supply power to the heater.

However, the wires are excessively long to apply power to the board connected to the heater and the board connected to the fan, and the wires and boards of the DC power supply are affected by the noise generated from the wires to which the AC power is applied. there was

Korean Registered Patent No. 10-1814574 discloses a blower on which a substrate for controlling power supply to a fan is disposed, but there is a problem in that warm air cannot be provided to a user because a heater is not provided.

Korean Registered Patent No. 10-1654124 discloses a blower in which a heater is disposed, but in relation to the arrangement of a substrate connected to the heater and a substrate connected to the fan, the wire becomes longer and the effect of noise generated from the AC power source increases. there was

Korea Patent Registration 10-1814574 Korea Patent Registration 10-1654124

An object to be solved by the present invention is to provide a blower in which the arrangement of substrates is optimized.

Another object of the present invention is to provide a blower in which the wire length is shortened.

Another object of the present invention is to provide a blower in which the influence of noise generated from a wire through which an alternating current flows is minimized.

Another object of the present invention is to provide a blower in which power is smoothly supplied to a heater and a fan.

Another object of the present invention is to provide a blower in which twisting of wires is prevented.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a blower according to an embodiment of the present invention, a case including a lower case and an air outlet formed with an air inlet and an upper case disposed above the lower case; a base disposed below the case and supporting the case; a fan disposed inside the case; a heater disposed inside the upper case; a first substrate seated on the base and controlling power supply to the fan; and a second substrate connected to an external power source to control power supply to the heater, so that power can be smoothly supplied to the fan and heater.

The second substrate is seated on the base to be spaced apart from the first substrate and is electrically connected to the first substrate so that power supplied from the external power source is bypassed to the first substrate. Through the arrangement of the two boards, the length of the wire can be reduced and the efficiency of power supply can be improved.

The base may have a wire hole through which a power line extending from the external power source passes.

The wire hole may be formed between the first substrate and the second substrate, so that the length of the wire may be reduced.

The power line may pass through the base and be connected to the second substrate.

The base may include a rotating plate on which the first substrate and the second substrate are seated, and a support body disposed below the rotating plate.

The rotating plate may be rotatably supported on the upper side of the support body, so that the first substrate and the second substrate may be rotated on the upper side of the rotating plate.

At least a portion of the base may be rotatably disposed, and the power line may pass through a center of rotation of the base, so that the power line may not be twisted by rotation.

The blower may further include a third substrate electrically connected to the first substrate and the second substrate, respectively, and controlling driving of the fan and the heater.

The third substrate may transmit power supplied through the first substrate to the fan.

A gap may be formed between the first substrate and the second substrate, and the third substrate may be positioned above the gap.

A roof may be disposed above the first substrate and the second substrate, and the third substrate may be seated above the roof.

The blower may further include a control box disposed above the base and accommodating the first substrate and the second substrate.

The blower may further include a filter disposed inside the case, and the filter may be seated on an upper side of the control box.

The blower may further include a motor disposed above a rotating plate on which the first substrate and the second substrate are seated and applying power to the rotating plate.

The motor may be disposed to correspond to a gap formed between the first substrate and the second substrate.

The blower may include a relay selectively supplying power to the heater; a power line connected to the external power source; and a bypass line electrically connecting the first substrate and the second substrate.

The bypass line may be branched from the power line between the external power source and the relay.

The blower may include a fan power line extending from the first substrate toward the fan; and a heater power line extending from the second substrate toward the heater.

The fan power line and the heater power line may extend at opposite positions based on the center of the case.

A plurality of heaters may be disposed, and a plurality of heater power lines may extend from the second substrate toward each of the plurality of heaters.

The fan may receive DC power through the fan power line, and the heater may receive AC power through the heater power line.

The blower may further include a substrate case disposed to block electromagnetic waves generated from the second substrate and cover the second substrate.

The upper case may include a first tower case extending upward from the lower case and a second tower case spaced apart from the first tower case.

A direction in which the first substrate and the second substrate are separated may be the same as a direction in which the first tower case and the second tower case are separated.

The fan may be disposed above the first substrate and the second substrate, and the heater may be disposed above the fan.

Details of other embodiments are included in the detailed description and drawings.

According to the blower of the present invention, there are one or more of the following effects.

First, by seating the first and second substrates on the base, there is an advantage in efficiently utilizing the space for disposing the substrates.

Second, there is an advantage in that the length of the power line can be reduced by arranging the first and second substrates at the same height.

Third, there is an advantage of minimizing the influence of noise by maximizing the separation of the wires extending from the first and second substrates.

Fourth, by providing a bypass line branched off from the power line, there is also an advantage in that power is smoothly supplied from the heater and the fan.

Fifth, as the power line passes through the center of rotation, twisting of the wire is prevented.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a blower according to an embodiment of the present invention.
2 is a longitudinal cross-sectional front perspective view of a blower according to an embodiment of the present invention.
3 is a longitudinal cross-sectional side perspective view of a blower according to an embodiment of the present invention.
4 is a top perspective view of a blower according to an embodiment of the present invention.
5 is a cross-sectional perspective view of a blower according to an embodiment of the present invention.
6 is a diagram illustrating air flow conversion of a blower according to an embodiment of the present invention.
7 is a diagram illustrating an air current converter of a blower according to an embodiment of the present invention.
8 is a perspective view of a heater according to an embodiment of the present invention.
9 is a perspective view of a lower structure of a blower according to an embodiment of the present invention.
10 is a longitudinal cross-sectional view of a suction module according to an embodiment of the present invention.
11 is a longitudinal cross-sectional view of a blower lower structure according to an embodiment of the present invention.
12 is a perspective view of a base according to an embodiment of the present invention.
13 is an exploded perspective view of a base according to an embodiment of the present invention.
14 is a perspective view illustrating the arrangement of a substrate according to an embodiment of the present invention.
15 is a top perspective view illustrating the arrangement of a substrate according to an embodiment of the present invention.
16 is a side perspective view illustrating the arrangement of a substrate according to an embodiment of the present invention.
17 is a view conceptually showing a longitudinal cross-sectional shape for explaining a wire connection structure according to an embodiment of the present invention.
18 is a view conceptually showing a cross-sectional shape explaining a wire connection structure according to an embodiment of the present invention.
19(a) is a block diagram illustrating a wire connection structure according to an embodiment of the present invention.
19(b) is a block diagram illustrating a wire connection structure according to another embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, the present invention will be described with reference to drawings for explaining a blower according to embodiments of the present invention.

Referring to FIG. 1, the overall structure of the blower 1 will first be described. Figure 1 shows the overall appearance of the blower (1).

Since the blower 1 sucks in air and circulates the sucked air, it may be named by other names such as an air conditioner, an air clean fan, and an air purifier.

The blower 1 according to an embodiment of the present invention may include a suction module 100 through which air is sucked in and a blowing module 200 through which the sucked air is discharged.

The blower 1 may have a columnar shape in which the diameter decreases toward the top, and the blower 1 may have a cone or truncated cone shape as a whole. When the cross section becomes narrower toward the upper side, there is an advantage in that the center of gravity is lowered and the risk of overturning due to external impact is reduced. However, unlike the present embodiment, it may not be a shape in which the cross section becomes narrower toward the upper side.

The suction module 100 may be formed to gradually decrease in diameter toward the top, and the blowing module 200 may also be formed to gradually decrease in diameter toward the top.

The suction module 100 may include a base 500, a lower case 120 disposed above the base 500, and a filter 130 disposed inside the lower case 120.

The base 500 can be seated on the ground and can support the load of the blower 1 . The lower case 120 and the filter 130 may be seated on the upper side of the base 500 .

The lower case 120 may have a cylindrical shape, and may form a space in which the filter 130 is disposed. The lower case 120 may have a suction hole 121 opened to the inside of the lower case 120 . A plurality of suction holes 121 may be formed along the circumference of the lower case 120 .

The outer shape of the filter 130 may be cylindrical, and foreign substances contained in the air introduced through the suction hole 121 may be filtered out.

The blowing module 200 may be disposed separately in the form of two vertically extending pillars. The blowing module 200 may include a first tower 220 and a second tower 230 spaced apart from each other. The blowing module 200 may include a tower base 210 connecting the first tower 220 and the second tower 230 to the suction module 100 . The tower base 210 may be disposed above the suction module 100 and may be disposed below the first tower 220 and the second tower 230 .

The tower base 210 may have a cylindrical shape, and may be disposed above the suction module 100 to form a continuous outer circumferential surface with the suction module 100.

The upper surface of the tower base 210 may be formed concave downward, and may form an upper surface 211 of the tower base extending forward and backward. The first tower 220 may extend upward from one side 211a of the upper surface 211 of the tower base, and the second tower 230 may extend upward from the other side 211b of the upper surface 211 of the tower base. there is.

The tower base 210 may distribute filtered air supplied from the inside of the suction module 100 and provide the distributed air to the first tower 220 and the second tower 230, respectively.

The tower base 210, the first tower 220, and the second tower 230 may be manufactured as separate parts or may be manufactured integrally. The tower base 210 and the first tower 220 may form a continuous outer circumferential surface of the blower 1, and the tower base 210 and the second tower 230 may form a continuous outer circumferential surface of the blower 1. A circumferential surface can be formed.

Unlike this embodiment, the first tower 220 and the second tower 230 may be directly assembled to the suction module 100 without the tower base 210, or may be manufactured integrally with the suction module 100.

The first tower 220 and the second tower 230 may be spaced apart from each other, and a blowing space S may be formed between the first tower 220 and the second tower 230 .

The blowing space (S) can be understood as a space between the first tower 220 and the second tower 230, the front, rear and upper sides are open.

The outer shape of the blowing module 200 composed of the first tower 220, the second tower 230 and the blowing space S may be a truncated cone shape.

The discharge ports 222 and 232 respectively formed in the first tower 220 and the second tower 230 may discharge air toward the blowing space S. When the discharge ports 222 and 232 need to be distinguished, the discharge port formed in the first tower 220 is referred to as the first discharge port 222, and the discharge port formed in the second tower 230 is referred to as the second discharge port 232.

The first tower 220 and the second tower 230 may be arranged symmetrically with respect to the blowing space (S). Since the first tower 220 and the second tower 230 are symmetrically arranged, the flow is uniformly distributed in the blowing space S, which is more advantageous for controlling the horizontal airflow and the ascending airflow.

The first tower 220 may include a first tower case 221 forming the outer shape of the first tower 220, and the second tower 230 may include a first tower case 221 forming the outer shape of the second tower 230. Two tower cases 231 may be included. The first tower case 221 and the second tower case 231 may be referred to as upper cases disposed above the lower case 120 and having outlets 222 and 232 through which air is discharged, respectively. The lower case 120 and the upper cases 221 and 231 may be included in a "case" and may be sub-concepts of the case.

The first outlet 222 may be formed to extend vertically in the first tower 220 , and the second outlet 232 may be formed to extend vertically in the second tower 230 .

The flow direction of the air discharged from the first tower 220 and the second tower 230 may be formed in the forward and backward directions.

The width of the blowing space (S), which is the distance between the first tower 220 and the second tower 230, may be formed equally in the vertical direction. However, the width of the upper end of the blowing space (S) may be formed narrower or wider than the width of the lower end.

By forming the width of the blowing space (S) constant along the vertical direction, it is possible to evenly distribute the air flowing in the forward direction of the blowing space (S) in the vertical direction.

When the width of the upper side is different from the width of the lower side, the flow rate of the wide side may be formed low, and deviation of the speed may occur based on the vertical direction. When a deviation in flow velocity of air occurs in the vertical direction, the supply amount of clean air may vary according to the position in the vertical direction where the air is discharged.

After the air discharged from each of the first discharge port 222 and the second discharge port 232 is joined in the blowing space S, it may be supplied to the user.

The air discharged from the first discharge port 222 and the air discharged from the second discharge port 232 do not individually flow to the user, but may be joined in the blowing space S and then supplied to the user.

The blowing space (S) may be used as a space in which discharge air is joined and mixed. Indirect airflow is formed in the air around the blower 1 by the discharge air discharged to the blowing space S, so that the air around the blower 1 can also flow toward the blowing space S.

Since the discharge air of the first discharge port 222 and the discharge air of the second discharge port 232 are joined in the blowing space S, the straightness of the discharge air can be improved. By combining the discharge air of the first discharge port 222 and the discharge air of the second discharge port 232 in the blowing space (S), the air around the first tower 220 and the second tower 230 is also generated by the indirect air flow. It may be induced to flow forward along the outer circumferential surface of the blowing module 200 .

The first tower case 221 includes a first tower top 221a forming the upper side of the first tower 220, a first tower front end 221b forming the front side of the first tower 220, and , the first tower rear end 221c forming the rear surface of the first tower 220, the first outer wall 221d forming the outer circumferential surface of the first tower 220, and the first tower 220 It may include a first inner wall (221e) forming the inner surface of.

The second tower case 231 includes a second tower top 231a forming the upper side of the second tower 230, a second tower front end 231b forming the front side of the second tower 230, and , the second tower rear end 231c forming the rear surface of the second tower 230, the second outer wall 231d forming the outer circumferential surface of the second tower 230, and the inside of the second tower 230 It may include a second inner wall 231e forming a side surface.

The first outer wall 221d and the second outer wall 231d may be formed convexly outward in the radial direction to form outer circumferential surfaces of the first tower 220 and the second tower 230, respectively.

The first inner wall 221e and the second inner wall 231e may be formed convexly inward in the radial direction to form inner circumferential surfaces of the first tower 220 and the second tower 230, respectively.

The first discharge port 222 may be formed to extend vertically from the first inner wall 221e and be opened radially inward. The second outlet 232 may be formed to extend vertically from the second inner wall 231e and be opened radially inward.

The first discharge port 222 may be formed at a position closer to the rear end 221c of the first tower than to the front end 221b of the first tower. The second discharge port 232 may be formed at a position closer to the rear end 231c of the second tower than to the front end 231b of the second tower.

The first board slit 223 through which the first air current converter 401 to be described later passes may be formed extending vertically from the first inner wall 221e. The second board slit 233 through which the second air current converter 402 to be described later passes may be formed to extend vertically on the second inner wall 231e. The first board slit 223 and the second board slit 233 may be formed to open radially inward.

The first board slit 223 may be formed at a position closer to the first tower front end 221b than to the first tower rear end 221c. The second board slit 233 may be formed at a position closer to the front end 231b of the second tower than to the rear end 231c of the second tower. The first board slit 223 and the second board slit 233 may face each other.

Hereinafter, the internal structure of the blower 1 will be described with reference to FIGS. 2 and 3 . FIG. 2 is a cross-sectional perspective view of the blower 1 cut along the P-P' line shown in FIG. 1, and FIG. 3 is a cross-sectional perspective view of the blower 1 cut along the Q-Q' line shown in FIG. am.

Referring to FIG. 2 , a substrate assembly 600 for controlling the operation of the fan assembly 300 and the heater 240 may be disposed above the base 500 . A control space 600S in which the substrate assembly 600 is disposed may be formed on the upper side of the base 500 .

The filter 130 may be disposed above the control space 600S. The filter 130 may have a cylindrical shape, and a cylindrical filter hole 131 may be formed inside the filter 130 .

Air introduced through the suction hole 121 may pass through the filter 130 and flow into the filter hole 131 .

On the upper side of the filter 130, a suction grill 140 through which air flowing upward through the filter 130 passes may be disposed. The suction grill 140 may be disposed between the fan assembly 300 and the filter 130 . The suction grill 140 can prevent a user's hand from being put into the fan assembly 300 when the lower case 210 is removed and the filter 130 is separated from the blower 1 .

The fan assembly 300 may be disposed above the filter 130 and may generate a suction force for air outside the blower 1 .

By the driving of the fan assembly 300, the air outside the blower 1 can pass through the suction hole 121 and the filter hole 131 in order and flow to the first tower 220 and the second tower 230. there is.

A pressurized space 300s in which the fan assembly 300 is disposed may be formed between the filter 130 and the blowing module 200 .

A first distribution space 220s in which air passing through the pressurized space 300s flows upward may be formed inside the first tower 220, and a pressurized space 300s inside the second tower 230. A second distribution space 230s through which the air passing through flows upward may be formed. The tower base 210 may distribute air passing through the pressurized space 300s into the first distribution space 220s and the second distribution space 230s. The tower base 210 may be a channel connecting the first and second towers 220 and 230 and the fan assembly 300 .

The first distribution space 220s may be formed between the first outer wall 221d and the first inner wall 221e. The second distribution space 230s may be formed between the second outer wall 231d and the second inner wall 231e.

The first tower 220 may include a first flow guide 224 guiding a flow direction of air in the first distribution space 220s. A plurality of first flow guides 224 may be arranged so as to be vertically spaced apart from each other.

The first flow guide 224 may be formed to protrude from the first tower rear end 221c toward the first tower front end 221b. The first flow guide 224 may be spaced apart from the first tower front end 221b in the forward and backward directions. The first flow guide 224 may extend obliquely downward toward the front. An angle at which each of the plurality of first flow guides 224 is inclined downward may be smaller as they are disposed on the upper side.

The second tower 230 may include a second flow guide 234 guiding a flow direction of air in the second distribution space 230s. A plurality of second flow guides 234 may be disposed so as to be vertically spaced apart from each other.

The second flow guide 234 may be formed to protrude from the second tower rear end 231c toward the second tower front end 231b. The second flow guide 234 may be spaced apart from the second tower front end 231b in the forward and backward directions. The second flow guide 234 may extend obliquely downward toward the front. An angle at which each of the plurality of second flow guides 234 is inclined downward may be smaller as they are disposed on the upper side.

The first flow guide 224 may guide the air discharged from the fan assembly 300 to flow toward the first outlet 222 . The second flow guide 234 may guide the air discharged from the fan assembly 300 to flow toward the second outlet 232 .

Referring to FIG. 3 , the fan assembly 300 rotates by receiving power from a fan motor 310 generating power, a motor housing 330 accommodating the fan motor 310 , and the fan motor 310 . It may include a fan 320 and a diffuser 340 for guiding a flow direction of air pressurized by the fan 320 .

The fan motor 310 may be disposed above the fan 320 and may be connected to the fan 320 through a motor shaft 311 extending downward from the fan motor 310 .

The motor housing 330 may include a first motor housing 331 covering an upper portion of the fan motor 310 and a second motor housing 332 covering a lower portion of the fan motor 310 .

The first outlet 222 may extend upward from one side 211a of the top surface 211 of the tower base. The lower end 222d of the first outlet may be formed on one side 211a of the upper surface 211 of the tower base.

The first outlet 222 may be spaced apart from the lower side of the first tower top 221a. The first discharge port upper end 222c may be formed to be spaced apart from the lower side of the first tower upper end 221a.

The first outlet 222 may extend obliquely in the vertical direction. The first discharge port 222 may be inclined toward the front as it goes upward. The first outlet 222 may extend obliquely backward with respect to the vertical shaft Z extending in the vertical direction.

The front end 222a of the first discharge port and the rear end 222b of the first discharge port may extend obliquely in a vertical direction or may extend parallel to each other. The front end 222a of the first discharge port and the rear end 222b of the first discharge port may extend obliquely backward with respect to the vertical axis Z extending in the vertical direction.

The first tower 220 may include a first discharge guide 225 guiding the air in the first distribution space 220s to the first discharge port 222 .

The first tower 220 may be symmetrical to the second tower 230 based on the blowing space S, and may have the same shape and structure as the second tower 230. The description of the above-described first tower 220 may be equally applied to the second tower 230 .

The blower 1 may include a heater 240 disposed in an upper case. A plurality of heaters 240 may be disposed to correspond to each of the first discharge port 222 and the second discharge port 232 . The heater 240 may include a first heater 241 disposed in the first tower 220 and a second heater 242 disposed in the second tower 230 . The first heater 241 may be disposed obliquely up and down to correspond to the first discharge port 222, and the second heater 242 may be disposed obliquely up and down to correspond to the second discharge port 232. there is.

The heater 240 may receive power from a power supply using a switched mode power supply (SMPS) method. The heater 240 may receive power from the external power source 20 and heat air discharged to the blowing space S through the outlets 222 and 232 .

Hereinafter, the air discharge structure of the blower 1 for inducing the Coanda effect will be described with reference to FIGS. 4 and 5 . FIG. 4 shows a form in which the blower 1 is viewed from above in a positive and downward direction, and FIG. 5 shows a form in which the blower 1 is cut along the line R-R′ shown in FIG. 1 and viewed upward it did

Referring to FIG. 4 , the distances D0 , D1 , and D2 between the first inner wall 221e and the second inner wall 231e may decrease as they get closer to the center of the blowing space S.

The first inner wall 221e and the second inner wall 231e may be convexly formed toward the inside in the radial direction, and the shortest distance between the vertices of the first inner wall 221e and the second inner wall 231e ( D0) can be formed. The shortest distance D0 may be formed at the center of the blowing space S.

The first discharge port 222 may be formed behind the position at which the shortest distance D0 is formed. The second outlet 232 may be formed behind the position where the shortest distance D0 is formed.

The first tower front end 221b and the second tower front end 231b may be spaced apart by a first distance D1. The first tower rear end 221c and the second tower rear end 231c may be spaced apart by the second distance D2.

The first interval D1 and the second interval D2 may be the same. The first distance D1 may be greater than the shortest distance D0, and the second distance D2 may be greater than the shortest distance D0.

The distance between the first inner wall 221e and the second inner wall 231e can be reduced from the rear ends 221c and 231c to the position where the shortest distance D0 is formed, and the shortest distance D0 is formed. From the position to the front end (221b, 231b) can be large.

The first tower front end 221b and the second tower front end 231b may be inclined with respect to the front and rear axis X.

A tangent line drawn at each of the first tower front end 221b and the second tower front end 231b may have a predetermined inclination angle A with respect to the front and rear axis X.

Some of the air discharged forward through the blowing space (S) may flow with the inclination angle (A) with respect to the front and rear axis (X).

With the above structure, the diffusion angle of the air discharged forward through the blowing space S can be increased.

The first air current converter 401, which will be described later, may be inserted into the first board slit 223 when air is discharged forward through the blowing space S.

The second air flow converter 402, which will be described later, may be inserted into the second board slit 233 when air is discharged forward through the blowing space S.

Referring to FIG. 5 , air discharged toward the blowing space S may be guided in a flow direction by the first discharge guide 225 and the second discharge guide 235 .

The first discharge guide 225 may include a first inner guide 225a connected to the first inner wall 221e and a first outer guide 225b connected to the first outer wall 221d.

The first inner guide 225a may be integrally manufactured with the first inner wall 221e, but may also be manufactured as a separate part.

The first outer guide 225b may be manufactured integrally with the first outer wall 221d, but may also be manufactured as a separate part.

The first inner guide 225a may protrude from the first inner wall 221e toward the first distribution space 220s.

The first outer guide 225b may protrude from the first outer wall 221d toward the first distribution space 220s. The first outer guide 225b may be formed to be spaced apart from the outside of the first inner guide 225a, and the first discharge port 222 may be formed between the first inner guide 225a.

The radius of curvature of the first inner guide 225a may be smaller than that of the first outer guide 225b.

Air in the first distribution space 220s may flow between the first inner guide 225a and the first outer guide 225b and flow into the blowing space S through the first outlet 222 .

The second discharge guide 235 may include a second inner guide 235a connected to the second inner wall 231e and a second outer guide 235b connected to the second outer wall 231d.

The second inner guide 235a may be integrally manufactured with the second inner wall 231e, but may also be manufactured as a separate part.

The second outer guide 235b may be integrally manufactured with the second outer wall 231d, but may also be manufactured as a separate part.

The second inner guide 235a may protrude from the second inner wall 231e toward the second distribution space 230s.

The second outer guide 235b may protrude from the second outer wall 231d toward the second distribution space 230s. The second outer guide 235b may be formed to be spaced apart from the outside of the second inner guide 235a, and the second outlet 232 may be formed between the second inner guide 235a.

The radius of curvature of the second inner guide 235a may be smaller than the radius of curvature of the second outer guide 235b.

Air in the second distribution space 230s may flow between the second inner guide 235a and the second outer guide 235b and flow into the blowing space S through the second outlet 232 .

The widths w1 , w2 , and w3 of the first discharge port 222 may gradually decrease and then increase from the inlet to the outlet of the first discharge guide 225 .

An entrance width w1 of the first discharge guide 225 may be greater than an exit width w3 of the first discharge guide 225 .

The entrance width w1 may be defined as a distance between the outer end of the first inner guide 225a and the outer end of the first outer guide 225b. The outlet width w3 is defined as the distance between the first outlet front end 222a, which is the inner end of the first inner guide 225a, and the first outlet rear end 222b, which is the inner end of the first outer guide 225b. It can be.

The size of the inlet width w1 and the outlet width w3 may be greater than the size of the shortest width w2 of the first outlet 222 .

The shortest width w2 may be defined as the shortest distance between the rear end 222b of the first discharge port and the first inner guide 225a.

The width of the first discharge port 222 may gradually decrease from the entrance of the first discharge guide 225 to a position where the shortest width w2 is formed, and from the position where the shortest width w2 is formed, the first discharge guide ( 225) may gradually increase.

Like the first discharge guide 225, the second discharge guide 235 may also have a front end 232a of the second discharge port and a rear end 232b of the second discharge port, and have the same width as the first discharge guide 225. can have a distribution.

Hereinafter, wind direction switching by the air current converter 400 will be described with reference to FIGS. 6 and 7 . FIG. 6 shows a form in which the air current converter 400 protrudes into the blowing space S so that the blower 1 forms an updraft, and FIG. 7 is a view illustrating the operating principle of the air current converter 400.

Referring to Figure 6, the air flow converter 400 may protrude toward the blowing space (S), it is possible to convert the flow of air discharged forward through the blowing space (S) into upward wind.

The air current converter 400 may include a first air current converter 401 disposed in the first tower case 221 and a second air current converter 402 disposed in the second tower case 231 .

The first air current converter 401 and the second air current converter 402 protrude toward the blowing space S from the first tower 220 and the second tower 230, respectively, and the front of the blowing space S can block

When the first air flow converter 401 and the second air flow converter 402 protrude and block the front of the blowing space S, the air discharged through the first outlet 222 and the second outlet 232 It is blocked by 400 and can flow upward (Z).

When the first air current converter 401 and the second air current converter 402 are drawn into the first tower 220 and the second tower 230 and open the front of the blowing space S, the first discharge port 222 And the air discharged through the second discharge port 232 may flow in the front (X) through the blowing space (S).

Referring to FIG. 7, the air current converters 401 and 402 include a board 410 protruding toward the blowing space S, a motor 420 providing driving force to the board 410, and a board 410. It may include a board guide 430 for guiding the moving direction, and a cover 440 for supporting the motor 410 and the board guide 430.

Hereinafter, the first air current converter 401 will be described as an example, but the description of the first air current converter 401 to be described below may be equally applied to the second air current converter 402.

As shown in FIGS. 4 and 5 , the board 410 may be inserted into the first board slit 223 . When the motor 420 is driven, the board 410 may protrude into the blowing space S through the first board slit 223 . The board 410 may have an arc shape in cross section. When the motor 420 is driven, the board 410 may move in a circumferential direction and protrude into the blowing space S.

The motor 420 may be connected to the pinion gear 421 to rotate the pinion gear 421 . The motor 420 may rotate the pinion gear 421 clockwise or counterclockwise.

The board guide 430 may have a plate shape extending vertically. The board guide 430 may include a guide slit 450 extending obliquely up and down, and a rack 431 formed to protrude toward the pinion gear 421 .

The rack 431 may mesh with the pinion gear 421 . When the motor 420 is driven and the pinion gear 421 rotates, the rack 431 meshed with the pinion gear 421 may move up and down.

The guide protrusion 411 formed on the board 410 to protrude toward the board guide 430 may be inserted into the guide slit 450 .

When the board guide 430 is moved up and down according to the vertical movement of the rack 431, the guide protrusion 411 may be moved by receiving force from the guide slit 450. As the board guide 430 moves up and down, the guide protrusion 411 may be moved in an oblique direction within the guide slit 450 .

When the rack 431 is moved upward, the guide protrusion 411 may be moved along the guide slit 450 and positioned at the lowest end of the guide slit 450 . When the guide protrusion 411 is positioned at the lowermost end of the guide slit 450, the board 410 may be completely hidden within the first tower 220 as shown in FIGS. 4 and 5. When the rack 431 moves upward, since the guide slit 450 also moves upward, the guide protrusion 411 can move along the guide slit 450 in the circumferential direction on the same horizontal plane.

When the rack 431 is moved downward, the guide protrusion 411 may be moved along the guide slit 450 and positioned at an upper end of the guide slit 450 . When the guide protrusion 411 is positioned at the top of the guide slit 450, the board 410 may protrude toward the blowing space S from the first tower 220 as shown in FIG. Since the guide slit 450 also moves downward when the rack 431 moves downward, the guide protrusion 411 can move along the guide slit 450 in the circumferential direction on the same horizontal plane.

The cover 440 includes a first cover 441 disposed outside the board guide 430 and a second cover 442 disposed inside the board guide 430 and in close contact with the first inner surface 221e. And, it may include a motor support plate 443 extending upward from the first cover 441 and connected to the motor 420 and a stopper 444 limiting the vertical movement of the board guide 430.

The first cover 441 may cover the outside of the board guide 430, and the second cover 442 may cover the inside of the board guide 430. The first cover 441 may separate the space where the board guide 430 is disposed from the first distribution space 220s. The second cover 442 may prevent the board guide 430 from contacting the first inner wall 221e.

The motor support plate 443 extends upward from the first cover 441 to support the load of the motor 420 .

The stopper 444 may be formed to protrude from the first cover 441 toward the board guide 430 . A locking protrusion (not shown) may be formed on one surface of the board guide 430 to be caught by the stopper 444 according to the vertical movement. When the board guide 430 moves up and down, the locking protrusion (not shown) is caught by the stopper 444, so that the up and down movement of the board guide 430 can be restricted.

Hereinafter, the structure of the heater 240 will be described with reference to FIG. 8 . 8 shows the heater 240 and the discharge port 222 .

The heater 240 may be disposed obliquely up and down to correspond to the outlet 222 , and may increase the temperature of air passing through the outlet 222 .

The heater 240 includes a first heat radiation pipe 243 extending vertically, a second heat radiation pipe 244 extending vertically and spaced apart from the first heat radiation pipe 243, and a first heat radiation pipe 243. A third heat sink 245 connecting the second heat sink 244 may be included.

The first heat sink 243 and the second heat sink 244 may be arranged side by side with each other, and the third heat sink 245 is located on top of the first heat sink 243 and the second heat sink 244. can be connected to each other. The third heat dissipation pipe 245 may be convex upward. The first heat sink 243, the second heat sink 244, and the third heat sink 245 may be integrally formed and may have a parabola shape convex upward.

The heater 240 may include a plurality of heat radiation fins 246 through which the first heat radiation pipe 243 and the second heat radiation pipe 244 pass. A plurality of heat dissipation fins 246 may be arranged so as to be vertically spaced apart from each other. The first heat dissipation tube 243 and the second heat dissipation tube 244 may extend vertically through each of the plurality of heat dissipation fins 246 and conduct heat to the heat dissipation fin 246 .

The air flowing in the first tower 220 and the second tower 230 may flow to the discharge port 222 through the plurality of radiating fins 246 . The heat dissipation fin 246 may guide air flowing in the upper case to the outlets 222 and 232 and supply heat to the air flowing toward the outlets 222 and 232 .

The heater 240 may include a connector 247 coupling the heater 240 to the tower cases 221 and 231 . The first heat sink 243 and the second heat sink 244 may pass through the connector 247 and extend vertically. A predetermined fastening member (not shown) may pass through the connector 247, and the heater 240 is fixed to the tower cases 221 and 231 through the fastening member (not shown) penetrating the connector 247. It can be.

Hereinafter, the control box 610 will be described with reference to FIG. 9 . 9 shows a disposition structure of the base 500, the substrate assembly 600, and the filter 130.

The base 500 includes a rotation plate 520 disposed below the substrate assembly 600 and on which the substrate assembly 600 is seated, and a support body 510 disposed below the rotation plate 520 and supporting the rotation plate 520. ) may be included.

The substrate assembly 600 may include a control box 610 in which a first control unit 620, a second control unit 630, and a third control unit 640, which will be described later, are accommodated.

The control box 610 may be disposed on the upper side of the base 500 and may be seated on the base 500 .

The control box 610 may form a control space 600s in which the first control unit 620, the second control unit 630, and the third control unit 640 are disposed. The control box 610 may form a boundary of the control space 600s.

The filter 130 may be disposed on the upper side of the control box 610 and may be seated on the upper side of the control box 610 . The filter 130 may be seated on the upper side of the cap 611a covering the upper portion of the control space 600s.

The filter 130 may have a cylindrical shape in which a filter hole 131 is formed at the center, and may have a cylindrical filter inner wall 132 and a cylindrical filter outer wall 133 . The filter inner wall 132 may have a smaller diameter than the filter outer wall 133, and the air introduced through the suction hole 121 may filter foreign substances while passing between the filter inner wall 132 and the filter outer wall 133. there is.

A filter frame 150 supporting the filter 130 may be disposed outside the filter 130 . The filter frame 150 may be disposed outside the filter outer wall 133 and may extend vertically.

A plurality of filter frames 150 may be disposed spaced apart in the circumferential direction of the filter 130 .

The movement of the filter 130 in the left-right direction or backward by the filter frame 150 may be limited. The filter 130 may be drawn forward through a space formed between the filter frames 150 .

The control box 610 includes a box body 611 extending in the circumferential direction to form a control space 600s inside, a cap 611a disposed above the box body 611, and a box body 611. It may include a joint 612 protruding upward from the joint 612 and a fastening groove 613 opened to the joint 612 . The box body 611, the cap 611a, and the joint 612 may be integrally formed. The control space 600s may be understood as a space surrounded by the box body 611 at the lower side of the cap 611a.

The filter frame 150 may be connected to the control box 610 . The filter frame 150 may be connected to the control box 610 through a predetermined fastening member (not shown) penetrating the joint 612 through the fastening groove 613 .

Hereinafter, the internal structure of the control space 600s will be described with reference to FIGS. 10 and 11 . 10 is a longitudinal cross-sectional view of the suction module 100 viewed from the side, and FIG. 11 is a longitudinal cross-sectional view of the base 500 and the substrate assembly 600 viewed from the front.

Referring to FIG. 10 , a control space 600s may be formed on the upper side of the base 500, and the control space 600s may be formed inside the control box 610.

A first control unit 620 for controlling power supply to the fan 320 and a second control unit 630 for controlling power supply to the heater 240 may be seated on the upper side of the base 500 .

The third control unit 640 that controls driving of the fan 320 and the heater 240 may be disposed above the first control unit 620 and the second control unit 630 .

The substrate assembly 600 may include a pedestal 660 disposed within the control space 600s. The third control unit 640 may be disposed on the upper side of the pedestal 660 and may be seated on the upper side of the pedestal 660 .

The pedestal 660 includes a pillar 661 into which an upper boss 529 protruding upward from the base 500 is inserted, and a roof 662 disposed above the pillar 661. can do.

The pillar 661 may extend vertically and may extend to a higher position than the first control unit 620 and the second control unit 630 .

The loop 662 may have a plate shape extending in the horizontal direction and may support the third controller 640 .

The pillar 661 and the loop 662 may be integrally formed, and the loop 662 may cover upper sides of the first control unit 620 and the second control unit 630 .

Referring to FIG. 11 , the rotating plate 520 may be rotatably disposed above the support body 510 .

The base 500 includes a motor 530 that applies power to move the rotary plate 520, an axis body 570 inserted into the rotary plate 520 to rotate the rotary plate 520, and rotation of the rotary plate 520. It may include a bearing 580 for supporting.

The first control unit 620 and the second control unit 630 may be seated on the upper side of the rotation plate 520, and may be rotated about the rotation axis RX by the rotation of the rotation plate 520.

The first control unit 620 and the second control unit 630 may be disposed symmetrically with respect to the rotation axis RX. The first control unit 620 and the second control unit 630 may be disposed apart from each other in a horizontal direction, and the rotation shaft RX may be positioned between the first control unit 620 and the second control unit 630. .

A power line 651 extending from the external power source 20 and supplying power to the first control unit 620 and the second control unit 630 may pass through the base 500 and be connected to the second control unit 630. there is.

An empty space may be formed inside the base 500, and a channel 510s through which the power line 651 passes may be formed. The power line 651 may extend from the external power supply 20 and pass through the channel 510s and wind around the outer circumferential surface of the shaft body 570.

The power line 651 wound around the outer circumferential surface of the shaft body 570 may pass through the wire through portion 570s formed inside the shaft body 570 and extend upward.

The power line 651 extending upward through the wire penetration part 570s may pass through the wire hole 520s formed in the base 500 and be connected to the second controller 630 .

The wire hole 520s may be formed between the first control unit 620 and the second control unit 630, and the power line 651 is connected to the base between the first control unit 620 and the second control unit 630. It may pass through 500 and extend into the control space 600s.

Hereinafter, with reference to FIGS. 12 and 13, a driving principle for rotating the rotating plate 520 will be described. 12 shows the base 500 in an assembled state, and FIG. 13 shows the base 500 disassembled into a support body 510 and a rotating plate 520.

Referring to FIG. 12, the rotating plate 520 includes a first plate 521 having wire holes 520s formed thereon, a second plate 522 extending in a circumferential direction from the outside of the first plate 521, and A stepped portion 523 connecting the first plate 521 and the second plate 522 and extending in the circumferential direction, an opening 524 through which the motor shaft 531 connected to the motor 530 passes, An upper boss 529 protruding upward from the plate 521 may be included.

The first control unit 620 and the second control unit 630 may be seated on the upper side of the first plate 521 . The lower case 120 may be connected to the second plate 522 . The wire hole 520s may be formed at the center of the first plate 521 . The upper boss 529 may be inserted into the pillar 661 of the pedestal 660 .

Referring to FIG. 13 , a motor 530 may be connected to a first gear 540 through a motor shaft 531 .

The support body 510 includes a bowl 511 having a channel 610s formed therein, a support plate 512 disposed above the bowl 511, and a rail 513 protruding upward from the support plate 512. ), a first boundary wall 514 extending in the circumferential direction inside the rail 513, and a second boundary wall 515 extending in the circumferential direction inside the first boundary wall 514.

The bowl 511 may be disposed on the ground, and the support plate 512 may cover an upper side of the channel 510s. The rail 513 may guide the movement of the bearing 580 .

The second gear 550 meshing with the first gear 540 may be fixed to the first boundary wall 514 . The shaft body 570 may be disposed inside the second boundary wall 515 .

When the motor 530 is operated, the first gear 540 moves along the circumference of the second gear 550 while being engaged with the second gear 550 . Accordingly, the shaft body 570 inserted into the wire hole 520s and constrained to the rotating plate 520 is rotated, and the rotating plate 520 is rotated in the circumferential direction with the shaft body 570 as the center of rotation.

The power line 651 passing through the channel 510s may be wound on the outer circumferential wall of the shaft body 570, and through the entry groove 571 formed on the outer circumferential wall of the shaft body 570, the wire through portion ( 570s). The power line 651 entering the wire penetration part 570s may extend upward and pass through the wire hole 520s.

Hereinafter, the arrangement structure of the substrate assembly 600 will be described with reference to FIG. 14 . 14 shows the internal structure of the control space 600s in a state where the control box 610 and the pedestal 660 are removed.

The first controller 620 may include a first substrate case 622 accommodating a first substrate 621 to be described later. The overall outer appearance of the first substrate case 622 may be a rectangular pillar shape.

The first substrate case 622 may be connected to the rotation plate 520 . The first controller 620 may include a first protrusion 622a protruding from the first substrate case 622 . The first substrate case 622 may be fixed to the rotating plate 520 through a predetermined fastening member (not shown) penetrating the first fastening hole 622b formed in the first protrusion 622a.

The second controller 630 may include a second substrate case 632 accommodating a second substrate 631 to be described later. The overall outer appearance of the second substrate case 632 may be a rectangular pillar shape.

The second substrate case 632 may be connected to the rotation plate 520 . The second controller 630 may include a second protrusion 632a protruding from the second substrate case 632 . The second substrate case 632 may be fixed to the rotating plate 520 through a predetermined fastening member (not shown) penetrating the second fastening hole 632b formed in the second protrusion 632a.

The first substrate case 622 and the second substrate case 632 may be made of a material that blocks electromagnetic waves or noise generated by AC power. The first substrate case 622 and the second substrate case 632 may be made of a sheet metal material, and the material of the first substrate case 622 and the second substrate case 632 may be aluminum.

The first substrate case 622 and the second substrate case 632 may be manufactured to the same standard as each other. Thus, the first substrate case 622 and the second substrate case 632 may be used interchangeably. The first substrate case 622 and the second substrate case 632 may be referred to as "substrate cases".

The third control unit 640 may be spaced apart from the upper side of the first substrate case 622 and the second substrate case 632 . The third control unit 640 may be disposed such that the substrate is exposed to the outside without a separate case. Accordingly, the third controller 640 may also be referred to as a third substrate 640 .

Hereinafter, relative positional relationships between the structures 620, 630, 640, and 530 in the control space 600s will be described with reference to FIGS. 15 and 16. 15 shows the control space 600s in a state where the control box 610 and the pedestal 660 are removed from the upper side as viewed from the top and bottom, and FIG. 16 shows the control space 600s shown in FIG. 15 It shows the form viewed from the side. Among orientation concepts described below, the left and right directions may be horizontal directions.

Referring to FIG. 15 , the first control unit 620 and the second control unit 630 may be spaced apart from each other in the left and right directions. The first substrate case 622 and the second substrate case 632 may be spaced apart from each other in the left and right directions.

The first control unit 620 may include a first sidewall 620a disposed to face the second control unit 630 . The second control unit 630 may include a second sidewall 630a disposed to face the first control unit 620 .

The first sidewall 620a and the second sidewall 630a may be spaced apart from each other in the left and right directions and may be disposed to face each other.

A gap G may be formed between the first control unit 620 and the second control unit 630 . The gap G may be formed between the first substrate case 622 and the second substrate case 632, and may be formed between the first sidewall 620a and the second sidewall 630a.

The third substrate 640 may be positioned above the gap G. At least a portion of the third substrate 640 may face the gap G vertically.

The motor 530 may be disposed to correspond to the gap G. The motor 530 may be disposed in front of the gap (G), and may face the gap (G) in the forward and backward directions.

The opening 524 may be formed at a position corresponding to the gap G and may be formed in front of the gap G.

The direction in which the first control unit 620 and the second control unit 630 are separated may be the same as the direction in which the first tower case 221 and the second tower case 231 are separated. The width direction of the gap G may be the same as the width direction of the blowing space S. That is, the gap (G) may be located on the lower side of the blowing space (S), and may extend in the same direction as the blowing space (S).

Referring to FIG. 16 , the third substrate 640 may be spaced apart from the first control unit 620 and the second control unit 630 .

The motor 530, the first control unit 620, and the second control unit 630 may be seated on the rotating plate 520, and the third substrate 640 may be spaced apart from the upper side of the rotating plate 520. there is.

The third substrate 640 may have a height difference D with the first controller 620 . The loop 662 on which the third substrate 640 is seated may be disposed between the third substrate 640 and the first controller 620 .

Hereinafter, with reference to FIG. 17, the electrical connection relationship of the substrate assembly 600 will be described. FIG. 17 conceptually illustrates a control space 600s in order to explain an electrical connection between the first control unit 620, the second control unit 630, and the third control unit 640.

The power line 651 electrically connected to the external power source 20 may extend from the external power source 20 and pass through the channel 510s. As shown in FIG. 17 , the power line 651 may enter the base 500 in a horizontal direction or may enter the base 500 in a vertical direction.

The power line 651 passing through the channel 510s may be electrically connected to the second control unit 630 through the wire hole 520s formed between the first control unit 620 and the second control unit 630. . The rotation center RX of the rotating plate 520 may be located inside the wire hole 520s.

The second controller 630 may include a second substrate 631 that controls power supply to the heater 240 and a second substrate case 632 accommodating the second substrate 631 .

The power line 651 connected to the second controller 630 may be electrically connected to the second substrate 631 . The second substrate 631 may supply power received through the power line 651 to the heater 240 through the heater power line 653 connected to the heater 240 .

The first control unit 620 and the second control unit 630 may be electrically connected through a bypass line 652 branched off from the power line 651 .

The first control unit 620 may include a first substrate 621 that controls power supply to the fan motor 310 and a first substrate case 622 accommodating the first substrate 621 .

The bypass line 652 may be electrically connected to the first substrate 621 and the second substrate 631 respectively.

The bypass line 652 may supply some of the power transmitted to the second substrate 631 through the power line 651 to the first substrate 621 . The first substrate 621 may supply power received through the bypass line 652 to the fan motor 310 through the fan power line 654 connected to the fan motor 310 .

The third substrate 640 may be electrically connected to the first substrate 621 through a fan power line 654 . Power supplied to the first board 621 through the bypass line 652 may be directly transmitted to the fan motor 310 or may be supplied to the fan motor 310 through the third board 640. .

The third substrate 640 may distribute power supplied through a power distribution line 655 connected to the sensor unit 40 , the display unit 50 , and the input unit 60 to be described later.

The power line 651 and the bypass line 652 passing through the wire hole 520s may be located in the gap G.

AC power is applied to the power line 651, and AC may flow. AC power is transmitted from the power line 651 to the bypass line 652, and AC may flow.

The first substrate 621 may include a converter 623 (see FIG. 19A ) that converts alternating current transmitted through the bypass line 652 into direct current. The first substrate 621 may convert alternating current into direct current through the converter 623 and supply it to the fan power line 654 .

The second substrate 631 may include a relay 633 (see FIG. 19A ) that selectively blocks power supply to the heater 240 . The heater 240 may be supplied with power according to a switched mode power supply (SMPS) method by selectively cutting off power in the relay 633 .

The substrate cases 622 and 632 may be made of a material that blocks electromagnetic waves or noise. The substrate cases 622 and 632 may be made of a sheet metal material and may be made of aluminum. Accordingly, noise/electromagnetic waves generated in the process of converting alternating current to direct current in the converter 623 and noise/electromagnetic waves generated due to frequent switching in the relay 633 escape to the outside of the substrate cases 622 and 632. You can prevent going out. The noise/electromagnetic waves may affect the fan power line 654 and cause power loss and malfunction of the fan 320 . The substrate cases 622 and 632 can remove the influence of noise/electromagnetic waves on the fan power line 654 due to the above-described structure.

The fan power line 654 may extend toward the fan motor 310 , and the heater power line 653 may extend toward the heater 240 .

The fan power line 654 and the heater power line 653 may extend from opposite positions based on the center of the lower case 120 . The center of the lower case 120 may be the rotation center RX. AC transmitted through the relay 633 may flow in the heater power line 653, and noise/electromagnetic waves are generated due to frequent switching of the relay 633. Therefore, by maximally separating the fan power line 654 and the heater power line 653, the effect of noise/electromagnetic waves generated from the heater power line 653 on the fan power line 654 can be minimized.

Hereinafter, with reference to FIG. 18, the positional relationship between wires 651, 652, 653, and 654 will be described. FIG. 18 conceptually shows the shape of the control space 600s viewed from the top in order to explain the positional relationship between the wires 651, 652, 653, and 654.

The power line 651 passing through the wire hole 520s may extend in a direction opposite to the motor 530 and be connected to the second controller 630 . The bypass line 652 may extend from a position opposite to the motor 530 to connect the first control unit 620 and the second control unit 630 . The bypass line 652 may extend within the gap G or may extend outside the gap G.

The heater power line 653 includes a first heater power line 653a extending from the second substrate 631 toward the first heater 241 and extending from the second substrate 631 toward the second heater 242. A second heater power line 653b may be included.

The first heater 241 is connected to the first heater power line 653a to receive AC power, and the second heater 242 is connected to the second heater power line 653b to receive AC power. there is. The first heater power line 653a and the second heater power line 653b may extend independently of each other from the second substrate 631 .

The fan power line 654 includes a fan power supply line 654a directly connecting the first board 621 and the fan motor 310 and a power relay line connecting the first board 621 and the third board 640. (654b).

The first board 621 may transmit power to the third board 640 or receive a control signal of the fan motor 310 from the third board 640 through the power relay line 654b. The power supply line 654a and the power relay line 654b may extend independently of each other from the first substrate 621 .

The fan power line 654 and the heater power line 653 may extend in opposite directions from the first substrate 621 or the second substrate 631 . The first heater power line 653a may extend in opposite directions to the power supply line 654a and the power relay line 654b, respectively. The second heater power line 653b may extend in opposite directions to the power supply line 654a and the power relay line 654b, respectively.

Hereinafter, the wiring structure of the blower 1 according to an embodiment of the present invention will be described with reference to FIG. 19 (a). 19(a) conceptually shows a wiring structure in a blower 1 in which a heater 240 is disposed according to an embodiment of the present invention.

The power line 651 may be connected to the external power source 20 through the plug 30 . The plug 30 may be inserted into the outlet 20 to supply AC power to the power line 651 .

The power line 651 may be electrically connected to the second substrate 631 and may be electrically connected to the relay 633 disposed on the second substrate 631 .

The relay 633 may turn on or off the power supplied from the power line 651 . The relay 633 may selectively supply AC power to the heater 240 through the heater power line 653 . The relay 633 may turn on/off the power of the heater 240 through repetitive switching.

The bypass line 652 may be branched from the power line 651 between the external power source 20 and the relay 633 . The bypass line 652 may be branched off from the power line 651 electrically connected to the second substrate 631 and extending toward the relay 633 . The bypass line 652 may be branched between the relay 633 and the connection terminal 631a through which the power line 651 is connected to the second substrate 631 .

In the second substrate 631, a branch point 651a may be formed between the connection terminal 631a and the relay 633, and the bypass line 652 extends from the branch point 651a to the first substrate 621. ) can be extended towards The bypass line 652 may transfer AC power transmitted through the power line 651 to the first substrate 621 .

A converter 623 that converts AC power received through the bypass line 652 into DC power may be disposed on the first substrate 621 .

The converter 623 may convert AC to DC and supply DC power to the fan motor 310 through the power supply line 654a.

The third substrate 640 may receive DC power converted by the converter 623 through the power relay line 654b.

The third substrate 640 may include a controller 643 for supplying the received DC power to electrical components of the blower 1 and transmitting and receiving signals for controlling driving of the electrical components.

The third substrate 640 may transfer the power supplied from the first substrate 621 back to the first substrate 621 through the power relay line 654b together with a control signal. The first substrate 621 may transmit the received power and the control signal to the fan motor 310 through the power supply line 654a.

The blower 1 includes a sensor unit 40 that detects the temperature and humidity outside the blower 1, a display unit 50 that displays drive information of the blower 1, and a drive command for the blower 1 It may include an input unit 60 for receiving input.

The third board 640 may control driving of the electrical components 40 , 50 , 60 , 310 , 530 , and 240 and supply power to the electrical components 40 , 50 , 60 , 310 , 530 , and 240 .

The power distribution line 655 includes a first power distribution line 655a connecting the third substrate 640 and the sensor unit 40 and a second power distribution line 655a connecting the third substrate 640 and the display unit 50. A power distribution line 655b and a third power distribution line 655c connecting the third substrate 640 and the input unit 60 may be included.

The third substrate 640 may exchange information with the sensor unit 40 , the display unit 50 and the input unit 60 . The third substrate 640 may exchange information with the sensor unit 40 through the first power distribution line 655a. The third substrate 640 may exchange information with the display unit 50 through the second power distribution line 655b. The third substrate 640 may exchange information with the input unit 60 through the third power distribution line 655c.

The third substrate 640 may control the rotation of the rotating plate 520 through the motor control line 656 connected to the motor 530 . The third substrate 640 may transmit a rotation command or a rotation stop command of the rotation plate 520 to the motor 530 .

The third board 640 may control the output of the heater 240 through the heater control line 657 connected to the relay 633 . The third board 640 may transmit a command signal to adjust a switching ratio of the relay 633 . The relay 633 may adjust the output of the heater 240 by adjusting the On/Off ratio of the heater 240 based on the command signal received from the third board 640 .

Hereinafter, the wiring structure of the blower 1 according to another embodiment of the present invention will be described with reference to FIG. 19(b). 19(b) conceptually shows a wiring structure in a blower 1 in which a heater 240 is not disposed according to another embodiment of the present invention.

In another embodiment of the present invention, unlike one embodiment of the present invention, the heater 240 may not be disposed. Hereinafter, differences from an embodiment of the present invention will be mainly described.

In another embodiment, since the heater 240 is absent, the second controller 630 may not be disposed. Accordingly, the second substrate 631 may not be disposed.

The power line 651 connected to the external power source 20 through the plug 30 may be directly connected to the first substrate 621 .

The first substrate 621 may convert the AC power supplied from the external power source 20 into DC power through the converter 623 and transmit the converted DC power to the third substrate 640 and the fan motor 310 .

Since the wiring structure of the first board 621, the third board 640, and the other electrical components 40, 50, 60, 530, and 310 is the same as that of the embodiment of the present invention, a detailed description thereof will be omitted.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications and implementations are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

20: external power 100: suction module
120: lower case 130: filter
200: blowing module 220: first tower
230: second tower 300: fan assembly
320: fan 400: airflow converter
500: base 510: support body
520: rotary plate 530: motor
600: board assembly 610: control box
620: first control unit 621: first board
630: second control unit 631: second board
640: third board 651: power line
652: bypass line 660: pedestal

Claims (20)

a case including a lower case having an air inlet and an upper case having an air outlet and disposed above the lower case;
a base disposed below the case and supporting the case;
a fan disposed inside the case;
a heater disposed inside the upper case;
a first substrate seated on the base and controlling power supply to the fan;
a second substrate seated on the base and controlling power supply to the heater; and
A power line extending from an external power source and passing through the base to be connected to the second substrate;
The second substrate,
electrically connected to the first substrate so that power supplied from the external power source is bypassed to the first substrate;
The blower wherein the first substrate and the second substrate are spaced apart from each other with respect to the power line.
According to claim 1,
The base is
A wire hole through which the power line passes is formed,
The wire hole,
A blower formed between the first substrate and the second substrate.
According to claim 2,
The power line is
A blower connected to the second substrate through the base.
According to claim 2,
The base is
It includes a rotating plate on which the first substrate and the second substrate are seated, and a support body disposed below the rotating plate,
The rotating plate,
A blower rotatably supported on the upper side of the support body.
According to claim 2,
The base is
At least a part is arranged to be rotatable,
The power line is
A blower penetrating the center of rotation of the base.
According to claim 1,
The blower further comprising a third substrate electrically connected to the first substrate and the second substrate, respectively, and controlling driving of the fan and the heater.
According to claim 6,
The third substrate,
A blower transferring power supplied through the first substrate to the fan.
According to claim 6,
A gap is formed between the first substrate and the second substrate,
The third substrate,
A blower located on the upper side of the gap.
According to claim 6,
Further comprising a roof disposed above the first substrate and the second substrate,
The third substrate,
A blower seated on the upper side of the roof.
According to claim 1,
A blower further comprising a control box disposed above the base and accommodating the first substrate and the second substrate.
According to claim 10,
Further comprising a filter disposed inside the case,
The filter,
A blower seated on the upper side of the control box.
According to claim 1,
The blower further comprising a motor disposed above a rotating plate on which the first substrate and the second substrate are seated and applying power to the rotating plate.
According to claim 12,
the motor,
A blower arranged to correspond to a gap formed between the first substrate and the second substrate.
According to claim 1,
a relay selectively supplying power to the heater; and
Further comprising a bypass line electrically connecting the first substrate and the second substrate,
The bypass line is
A blower branched from the power line between the external power source and the relay.
According to claim 1,
a fan power line extending from the first substrate toward the fan; and
Further comprising a heater power line extending from the second substrate toward the heater,
The fan power line and the heater power line extend from opposite positions based on the center of the case.
According to claim 15,
A plurality of heaters are disposed,
The heater power line,
A plurality of blowers extending from the second substrate toward each of the plurality of heaters.
According to claim 15,
the fan,
DC power is applied through the fan power line,
the heater,
A blower receiving AC power through the heater power line.
According to claim 1,
The blower further comprising a substrate case disposed to block electromagnetic waves generated from the second substrate and cover the second substrate.
According to claim 1,
The upper case,
A first tower case extending upward from the lower case and a second tower case spaced apart from the first tower case,
A direction in which the first substrate and the second substrate are separated is the same as a direction in which the first tower case and the second tower case are separated.
According to claim 1,
the fan,
It is disposed above the first substrate and the second substrate,
the heater,
A blower disposed above the fan.

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