blower

Abstract

This invention relates to a blower. The blower of this invention includes: a lower housing having an intake port; a fan disposed inside the lower housing to blow air flowing in through the intake port upwards; a first tower extending upwards from the lower housing and having a first exhaust port opening forwards; a second tower, horizontally spaced from the first tower and extending upwards from the lower housing, having a second exhaust port opening forwards; an air guide disposed inside the first tower and spaced from its front end, extending toward the first exhaust port in a front-rear direction; and a handle disposed between the fan and the air guide, extending from an upstream side of the air guide toward the front end of the first tower. The handle's placement between the fan and the air guide enhances the blower's air delivery performance.

Description

Technical Field

[0001] This invention relates to blowers, and more specifically to a blower with a handle. Background Technology

[0002] A blower circulates air within an indoor space or creates an airflow towards the user by generating air movement. If the blower has a filter, it can supply air purified by the filter to the indoor space.

[0003] The blower includes a housing forming the exterior and a fan disposed inside the housing. When the user wants to change the placement of the blower in an indoor space, they can hold the housing and move the blower to the desired location.

[0004] However, existing blowers often lack handles for gripping the housing. Even when handles are present, they are positioned to obstruct the airflow direction from the fan, thus reducing the blower's performance. Summary of the Invention

[0005] The problem to be solved

[0006] The purpose of this invention is to solve the above-mentioned problems and other issues.

[0007] Another object of the present invention is to make the handling of the blower easier.

[0008] Another object of the present invention may be to provide a blower having a handle for holding the housing.

[0009] Another object of the present invention is to optimize the configuration position of the handle.

[0010] Another object of the present invention may be to provide a blower having a handle for guiding the flow direction of air blown from a fan.

[0011] Another object of the present invention is to provide a blower with improved air delivery performance.

[0012] Another object of the present invention is to provide a blower with minimal airflow loss from the fan.

[0013] The purpose of this invention is not limited to the purposes mentioned above, and those skilled in the art will clearly understand other purposes not mentioned from the following description.

[0014] Technical solutions to the problem

[0015] To achieve the above objectives, the blower of the present invention includes: a lower housing having an intake port; and a fan disposed inside the lower housing to blow air flowing in through the intake port upward.

[0016] The blower includes: a first tower extending upward from the lower housing and forming a first discharge port with a forward opening; and a second tower, horizontally spaced from the first tower, extending upward from the lower housing and forming a second discharge port with a forward opening.

[0017] The blower may include an air guide, which is disposed inside the first tower and spaced apart from the front end of the first tower, and extends toward the first outlet in a front-rear direction. Air blown by the fan can be guided by the air guide to the first outlet.

[0018] The blower may include a handle disposed between the fan and the air guide and extending from the upstream side of the air guide toward the front end of the first tower, which facilitates the handling of the blower and guides the air blown by the fan to the front end of the first tower.

[0019] The suction inlets may be formed in a plurality of them, and the plurality of suction inlets may be spaced apart from each other along the periphery of the lower housing.

[0020] The handle can be located higher than the inlet.

[0021] The handle can penetrate the lower housing and protrude into the interior space of the lower housing.

[0022] The lower outer casing may include a groove that connects the lower part of the first tower to the lower part of the second tower.

[0023] The groove can be formed by recessing downwards from the upper side of the fan.

[0024] The handle can be configured between the fan and the recess.

[0025] The handle may include a guide wall facing the fan in the vertical direction.

[0026] The guide wall can extend upwards at an angle toward the front end of the first tower.

[0027] The handle may include a first wall that is spaced apart from the upper side of the guide wall and extends toward the outer side of the lower housing.

[0028] The handle may include a second wall that connects the first wall and the guide wall and extends upward from the guide wall.

[0029] The blower may include: a fan motor connected to the fan; and a fan motor housing surrounding the fan motor and spaced apart from the inner circumferential surface of the lower housing.

[0030] A channel for airflow from the fan can be formed between the fan motor housing and the lower outer casing.

[0031] The handle can be configured on the upper side of the channel.

[0032] The width of the handle protruding into the lower housing can be less than the horizontal width of the channel.

[0033] The fan housing may include: a first housing wall extending in a vertical direction; and a second housing wall connected to the first housing wall on the upper side of the fan and extending obliquely toward the handle.

[0034] The blower may include a diffuser disposed above the fan and extending upward toward the interior space of the first tower.

[0035] The handle can be configured on the upper side of the diffuser.

[0036] The first tower may include a protrusion that protrudes from the front end of the first tower toward the first outlet.

[0037] The protrusion can be located between the air guide and the handle.

[0038] The protrusion can be located higher than the groove.

[0039] The protrusion may be located higher than the extension line of the guide wall.

[0040] The first discharge port can extend long in the vertical direction.

[0041] The air guide may be configured in a plurality of units, which are spaced apart from each other along the direction in which the air guide extends from the first outlet.

[0042] The air guide can extend from the rear end of the first tower toward the front end of the first tower.

[0043] One end of the air guide can be located further forward than the first discharge port.

[0044] The air guide can be tilted downwards as it gets closer to the front.

[0045] Among the plurality of air guides, the lower the air guide is positioned, the greater its downward tilt angle can be.

[0046] The handle may include a gripping portion that protrudes downward from the upper sidewall of the handle.

[0047] The handle may include a placement portion that protrudes downward from the guide wall.

[0048] The placement part can be connected to the lower outer shell.

[0049] The handle may include a protrusion having a fastening hole extending in a vertical direction.

[0050] The protrusion can protrude toward the groove.

[0051] The front end of the first tower can tilt further back as it gets closer to the top.

[0052] The details of other embodiments are included in the detailed description and the accompanying drawings.

[0053] The blower may include: a lower housing having an intake port; a fan disposed inside the lower housing; a fan motor disposed above the fan; a first tower disposed above the lower housing, extending elongated upward and having a first discharge port; and a second tower disposed above the lower housing, spaced apart from the first tower, extending elongated upward and having a second discharge port.

[0054] The blower may include: a motor housing, spaced apart from the lower housing on the inside of the lower housing, surrounding the fan motor; and a diffuser, connecting the periphery of the motor housing to the lower housing.

[0055] The blower may include a support member that connects the lower part of the facing surfaces of the first and second towers to the motor housing.

[0056] The blower may also include a bridge connecting the lower parts of the faces of the first tower and the second tower facing each other on their outer surfaces.

[0057] In the blower, the support member can connect the bridge and the motor housing.

[0058] In the blower, the support member may include an extension extending laterally from the lower part of the support member.

[0059] In the blower, the extension section can be connected to the upper part of the motor housing.

[0060] In the blower, the cross-sectional area of ​​the extension can correspond to the cross-sectional area of ​​the upper part of the motor housing.

[0061] In the blower, the support member can become narrower as it gets closer to the upper side.

[0062] The blower may also include a handle, which is disposed in the lower housing at a height corresponding to the support member, protruding inward on one side and opening outward on the other side to form a gripping space.

[0063] In the blower, the support member may include a first surface facing the handle and a second surface disposed on the opposite side of the first surface.

[0064] In the blower, the first surface can be tilted toward the second surface at a predetermined first angle.

[0065] In the blower, the second surface of the support member can be tilted toward the first surface at a predetermined second angle, and the first angle can be greater than the second angle.

[0066] The blower may also include a blowing space that is open forward and backward between the first tower and the second tower.

[0067] In the blower, the first tower, the second tower, and the blowing gap can form a continuous surface with the lower outer shell.

[0068] In the blower, the continuous surface can be a truncated cone whose cross-sectional area becomes narrower as it approaches the upper side.

[0069] In the blower, the first tower may include: a first inner wall facing the second tower to form the inner side of the first tower; and a first outer wall to form the outer side of the first tower.

[0070] In the blower, the second tower may include: a second inner wall facing the first tower to form the inner side of the second tower; and a second outer wall to form the outer side of the second tower.

[0071] In the blower 1, the bridge can connect the lower part of the first inner wall and the second inner wall.

[0072] In the blower, the bridge may be recessed to the lower side.

[0073] In the blower, the support member can be connected to the vicinity of the center in the front-rear direction of the bridge.

[0074] In the blower, the support member may include: a first protrusion extending upward from the upper part of the support member; and a second protrusion extending upward from the upper part of the support member and spaced apart from the first protrusion.

[0075] In the blower, a portion of the bridge can be inserted between the first protrusion and the second protrusion.

[0076] Technical effect

[0077] According to at least one embodiment of the present invention, by providing a handle on the lower housing, the handling of the blower can be made easy.

[0078] According to at least one embodiment of the present invention, by providing a handle in the lower housing, the handle can be positioned in a location that is easy for the user to hold.

[0079] According to at least one embodiment of the present invention, by configuring a handle between the fan and the air guide, the handle can be positioned to enhance the air delivery performance of the blower.

[0080] According to at least one embodiment of the invention, the handle has a guide wall that is inclined toward the front end of the tower, thereby enabling the air blown by the fan to be directed toward the front end of the tower.

[0081] According to at least one embodiment of the present invention, since the air guide and the outlet are configured close to the rear end of the tower, the air guided by the handle to the front end of the tower can be diffused uniformly in the vertical direction.

[0082] The effects of this invention are not limited to those mentioned above, and those skilled in the art can clearly understand other effects not mentioned through the description of the claims. Attached Figure Description

[0083] Figure 1 This is a perspective view of the blower according to an embodiment of the present invention.

[0084] Figure 2 yes Figure 1 The PP′ line section view shown.

[0085] Figure 3 yes Figure 1 The QQ' line section view shown.

[0086] Figure 4 This is a top perspective view of the blower according to an embodiment of the present invention.

[0087] Figure 5 yes Figure 1 The RR′ line section view shown.

[0088] Figure 6This is a diagram illustrating the internal structure of the tower in an embodiment of the present invention.

[0089] Figure 7 This is a diagram illustrating the internal structure of the tower in an embodiment of the present invention.

[0090] Figure 8 This is a partially enlarged view of the internal structure of the blower in an embodiment of the present invention.

[0091] Figure 9 This is a diagram illustrating the handle in an embodiment of the present invention.

[0092] The reference numerals in the attached figures are explained as follows:

[0093] 1: Blower; 110: Base;

[0094] 120: Lower outer shell; 160: Tower base;

[0095] 170: Handle; 220: First tower;

[0096] 230: Second Tower; 320: Fan;

[0097] 330: Fan motor housing; 340: Diffuser;

[0098] 500: Air guide. Detailed Implementation

[0099] The embodiments disclosed in this specification will now be described in detail with reference to the accompanying drawings. Regardless of the figure numbers, the same or similar components are given the same reference numerals, and repeated descriptions thereof are omitted.

[0100] The suffixes “module” and “section” used in the following description are given or used interchangeably only for ease of writing the specification and do not have any distinguishing meaning or function.

[0101] Furthermore, when describing the embodiments disclosed in this specification, detailed descriptions of relevant well-known technologies are omitted if it is believed that such descriptions would obscure the main points of the embodiments disclosed in this specification. Additionally, the accompanying drawings are only for illustrative purposes to help understand the embodiments disclosed in this specification; the technical concepts disclosed in this specification are not limited by the drawings and should be understood to include all modifications, equivalents, or substitutions within the scope and technical range of the invention.

[0102] Terms including ordinal numbers (e.g., first, second, etc.) may be used to describe various constituent elements, but the constituent elements are not limited to these terms. These terms are used only for the purpose of distinguishing one constituent element from another.

[0103] When it is mentioned that one constituent element is "connected" or "linked" to another constituent element, it should be understood that it can be directly connected or linked to another constituent element, but there may be other constituent elements between them. On the other hand, when it is mentioned that one constituent element is "directly connected" or "directly linked" to another constituent element, it should be understood that there are no other constituent elements in between.

[0104] Unless otherwise specified in the context, the singular expression includes the plural expression.

[0105] First, refer to Figure 1 Describe the overall structure of blower 1. Figure 1 The overall shape of the blower 1 is shown.

[0106] In terms of drawing in and circulating air, the blower 1 can also be called an air conditioner, an air purifying fan, an air purifier, or other names.

[0107] The blower 1 in this embodiment of the invention may include an intake module 100 for drawing in air and an exhaust module 200 for expelling the drawn-in air.

[0108] The blower 1 can be a cylindrical shape whose diameter decreases towards the top, or it can be a cone or truncated cone shape overall. When the cross-section narrows towards the top, it has the advantage of being less prone to tipping over due to a lower center of gravity, even under external impact. However, unlike this embodiment, it is also possible to avoid using a shape that narrows towards the top.

[0109] The intake module 100 can be configured such that its diameter gradually decreases towards the top, and the air supply module 200 can also be configured such that its diameter gradually decreases towards the top.

[0110] The inhalation module 100 may include: a base 110; a lower housing 120 disposed on the upper side of the base 110; and a filter 130 disposed on the inner side of the lower housing 120.

[0111] The base 110 can be placed on the ground and can support the load of the blower 1. The lower housing 120 and the filter 130 can be placed on the upper side of the base 110.

[0112] The lower housing 120 may be cylindrical in shape, and a space for arranging the filter 130 may be formed inside the lower housing 120. The lower housing 120 may have an intake port 121 that opens toward the inside of the lower housing 120. A plurality of intake ports 121 may be formed along the periphery of the lower housing 120. Each intake port 121 may extend in the vertical direction.

[0113] The filter 130 may be cylindrical in shape and may filter out impurities contained in the air flowing in through the intake port 121.

[0114] The air supply module 200 can be configured as two vertically extending columns. The air supply module 200 may include a first tower 220 and a second tower 230 spaced apart from each other. The air supply module 200 may also include a tower base 160 connecting the first tower 220, the second tower 230, and the intake module 100. The tower base 160 may be positioned above the intake module 100 and below the first tower 220 and the second tower 230.

[0115] The tower base 160 may be cylindrical in shape and may be disposed on the upper side of the suction module 100, forming a continuous outer peripheral surface with the suction module 100. The tower base 160 may be part of the lower housing 120. The lower housing 120 may include the tower base 160.

[0116] The top surface of the tower base 160 can be recessed downwards and can form a groove 161 extending forward and backwards. The first tower 220 can extend upwards from one side 161a of the groove 161, and the second tower 230 can extend upwards from the other side 161b of the groove 161.

[0117] The tower base 160 can distribute filtered air blown from inside the suction module 100 and supply the distributed air to the first tower 220 and the second tower 230 respectively.

[0118] The tower base 160, the first tower 220, and the second tower 230 can be manufactured as separate components or as a single unit. The tower base 160 and the first tower 220 can form a continuous outer peripheral surface of the blower 1, and the tower base 160 and the second tower 230 can also form a continuous outer peripheral surface of the blower 1. The tower base 160 can be part of the lower housing 120. The first tower 220 and the second tower 230 can also be referred to as the "upper housing" disposed on the upper side of the lower housing 120.

[0119] Unlike this embodiment, the first tower 220 and the second tower 230 can be directly assembled to the suction module 100 without the tower base 160, or they can be made as one piece with the suction module 100.

[0120] The first tower 220 and the second tower 230 can be configured separately from each other, and a blowing gap S can be formed between the first tower 220 and the second tower 230.

[0121] The blowing gap S can be understood as the space between the first tower 220 and the second tower 230, which are open in front, behind and above.

[0122] The air supply module 200, which consists of the first tower 220, the second tower 230, and the blowing gap S, can be truncated cone in shape.

[0123] The outlets 222 and 232 formed on the first tower 220 and the second tower 230, respectively, can discharge air into the blowing gap S. When it is necessary to distinguish between outlets 222 and 232, the outlet formed on the first tower 220 is called the first outlet 222, and the outlet formed on the second tower 230 is called the second outlet 232.

[0124] The first tower 220 and the second tower 230 can be symmetrically configured with respect to the blowing gap S. By symmetrically configuring the first tower 220 and the second tower 230, the airflow is evenly distributed within the blowing gap S, which is more conducive to controlling the horizontal and upward airflow.

[0125] The first tower 220 may include a first tower outer shell 221 forming the shape of the first tower 220, and the second tower 230 may include a second tower outer shell 231 forming the shape of the second tower 230. The first tower outer shell 221 and the second tower outer shell 231 may be referred to as the upper outer shell disposed on the upper side of the lower outer shell 120 and having exhaust ports 222 and 232 for discharging air, respectively. The lower outer shell 120 and the upper outer shells 221 and 231 may be included in the term "outer shell" and may be a subordinate concept of the outer shell.

[0126] The first outlet 222 can extend relatively long in the vertical direction in the first tower 220, and the second outlet 232 can extend relatively long in the vertical direction in the second tower 230.

[0127] The airflow direction from the first tower 220 and the second tower 230 can be formed in the front-to-back direction.

[0128] The width of the blowing gap S, which serves as the interval between the first tower 220 and the second tower 230, can be formed uniformly in the vertical direction. However, the upper width of the blowing gap S can also be formed to be narrower or wider than the lower width.

[0129] By making the width of the blowing gap S constant in the vertical direction, the air flowing in front of the blowing gap S can be evenly distributed in the vertical direction.

[0130] When the upper and lower widths differ, the flow velocity on the wider side may be lower, potentially causing a velocity deviation relative to the vertical direction. When this vertical airflow velocity deviation occurs, the supply of purified air may vary depending on the vertical position of the emitted air.

[0131] The air discharged from the first outlet 222 and the second outlet 232 can be supplied to the user after merging in the blowing gap S.

[0132] The air discharged from the first outlet 222 and the air discharged from the second outlet 232 will not flow to the user separately, but can be supplied to the user after merging during the blowing interval S.

[0133] The blowing gap S can be used as a space for the exhaust air to merge and mix. Under the action of the exhaust air that is discharged into the blowing gap S, an indirect airflow is formed in the air around the blower 1, thereby enabling the air around the blower 1 to also flow into the blowing gap S.

[0134] By merging the exhaust air from the first outlet 222 and the second outlet 232 in the blowing gap S, the straightness of the exhaust air can be improved. By merging the exhaust air from the first outlet 222 and the second outlet 232 in the blowing gap S, the air around the first tower 220 and the second tower 230 can also be guided to flow forward along the outer periphery of the air supply module 200 under the action of indirect airflow.

[0135] The first tower shell 221 may include: a first tower upper end 221a, forming the upper side surface of the first tower 220; a first tower front end 221b, forming the front surface of the first tower 220; a first tower rear end 221c, forming the rear surface of the first tower 220; a first outer side wall 221d, forming the outer peripheral surface of the first tower 220; and a first inner side wall 221e, forming the inner side surface of the first tower 220.

[0136] The second tower housing 231 may include: a second tower upper end 231a, forming the upper side surface of the second tower 230; a second tower front end 231b, forming the front surface of the second tower 230; a second tower rear end 231c, forming the rear surface of the second tower 230; a second outer side wall 231d, forming the outer peripheral surface of the second tower 230; and a second inner side wall 231e, forming the inner side surface of the second tower 230.

[0137] The first outer wall 221d and the second outer wall 231d can protrude radially outward to form the outer peripheral surfaces of the first tower 220 and the second tower 230, respectively.

[0138] The first inner sidewall 221e and the second inner sidewall 231e can be formed by protruding radially inward, thereby forming the inner peripheral surfaces of the first tower 220 and the second tower 230, respectively.

[0139] The first discharge port 222 may be formed by extending vertically along the first inner sidewall 221e and may be formed to open radially inward. The second discharge port 232 may be formed by extending vertically along the second inner sidewall 231e and may be formed to open radially inward.

[0140] The first outlet 222 can be formed at a position closer to the rear end 221c of the first tower than the front end 221b of the first tower. The second outlet 232 can be formed at a position closer to the rear end 231c of the second tower than the front end 231b of the second tower.

[0141] The first airflow converter 401 described later (see reference) Figure 5 The first plate slit 223, which extends through the plate, can be formed by extending vertically along the first inner sidewall 221e. The second airflow converter 402, described later (see reference...) Figure 5 The second plate slit 233 can be formed by extending vertically along the second inner sidewall 231e. The first plate slit 223 and the second plate slit 233 can be formed to open toward the blowing gap S.

[0142] The first plate slit 223 can be formed at a position closer to the front end 221b of the first tower than the rear end 221c of the first tower. The second plate slit 233 can be formed at a position closer to the front end 231b of the second tower than the rear end 231c of the second tower. The first plate slit 223 and the second plate slit 233 can be formed facing each other.

[0143] The following is for reference Figure 2 and Figure 3 Explain the internal structure of blower 1. Figure 2 It is along Figure 1 The cross-sectional perspective view of the blower 1 cut along line PP' is shown. Figure 3 It is along Figure 1 The cross-sectional perspective view of the blower 1 cut through by the QQ' line is shown.

[0144] Reference Figure 2 A base plate assembly 150 for controlling the operation of the fan assembly 300 can be disposed on the upper side of the base 110. A control space 150S for disposing of the base plate assembly 150 can be formed on the upper side of the base 110.

[0145] The filter 130 can be configured on the upper side of the control space 150S. The filter 130 can be cylindrical in shape, and cylinder-shaped filter holes 131 can be formed on the inner side of the filter 130.

[0146] Air flowing in through inlet 121 can flow through filter 130 to filter hole 131.

[0147] An intake grille 140 may be disposed on the upper side of the filter 130, through which air flowing upward via the filter 130 passes. The intake grille 140 may be disposed between the fan assembly 300 and the filter 130. When the lower housing 120 is removed and the filter 130 is separated from the blower 1, the intake grille 140 can prevent the user's hands from entering the fan assembly 300.

[0148] The fan assembly 300 can be configured on the upper side of the filter 130 and can generate suction to the air outside the blower 1.

[0149] Driven by the fan assembly 300, air from outside the blower 1 can pass through the intake port 121 and the filter hole 131 in sequence and be blown to the first tower 220 and the second tower 230.

[0150] A pressurized space 300s, in which a fan assembly 300 is configured, can be formed between the filter 130 and the air supply module 200.

[0151] A first distribution space 220s can be formed inside the first tower 220 for air flowing upward through the pressurized space 300s, and a second distribution space 230s can be formed inside the second tower 230 for air flowing upward through the pressurized space 300s. The tower base 160 can distribute the air that has passed through the pressurized space 300s to the first distribution space 220s and the second distribution space 230s. The tower base 160 can be a channel connecting the first tower 220, the second tower 230, and the fan assembly 300. The first distribution space 220s can refer to the internal space of the first tower 220. The second distribution space 230s can refer to the internal space of the second tower 230.

[0152] The first distribution space 220s can be formed between the first outer side wall 221d and the first inner side wall 221e. The second distribution space 230s can be formed between the second outer side wall 231d and the second inner side wall 231e.

[0153] The first tower 220 may include a first air guide 520 that guides the flow direction of air within the first distribution space 220s. A plurality of first air guides 520 may be arranged vertically spaced apart from each other.

[0154] The first air guide 520 can extend from the rear end 221c of the first tower toward the front end 221b of the first tower. The first air guide 520 can be spaced apart from the rear of the front end 221b of the first tower. The first air guide 520 can extend downwards at an angle as it gets closer to the front. Among the plurality of first air guides 520, the one positioned higher can have a smaller downward angle. This will be described in detail later.

[0155] The second tower 230 may include a second air guide 530 that guides the airflow direction within the second distribution space 230s. A plurality of second air guides 530 may be arranged vertically spaced apart from each other.

[0156] The second air guide 530 can extend from the rear end 231c of the second tower toward the front end 231b of the second tower. The second air guide 530 can be spaced apart from the rear of the front end 231b of the second tower. The second air guide 530 can extend downwards at an angle as it gets closer to the front. Among the plurality of second air guides 530, the one positioned higher can have a smaller downward angle. This will be described in detail later.

[0157] The first air guide 520 can guide the flow direction of air discharged from the fan assembly 300, directing the air towards the first discharge port 222. The second air guide 530 can guide the flow direction of air discharged from the fan assembly 300, directing the air towards the second discharge port 232.

[0158] Reference Figure 3 The fan assembly 300 may include: a fan motor 310 for generating power; a fan motor housing 330 for housing the fan motor 310; a fan 320 for receiving power from the fan motor 310 to rotate; and a diffuser 340 for guiding air pressurized by the fan 320 upward.

[0159] The fan motor 310 can be configured on the upper side of the fan 320 and can be connected to the fan 320 via a motor shaft 311 extending downward from the fan motor 310.

[0160] The fan motor housing 330 may include: a first motor housing 331 covering the upper part of the fan motor 310; and a second motor housing 332 covering the lower part of the fan motor 310.

[0161] The first outlet 222 can extend upward from one side 161a of the groove 161. The lower end 222d of the first outlet can be formed on one side 161a of the groove 161.

[0162] The first outlet 222 can be separated from the lower side of the upper end 221a of the first tower. The upper end 222c of the first outlet can be separated from the lower side of the upper end 221a of the first tower.

[0163] The first outlet 222 may extend obliquely in the vertical direction. The first outlet 222 may be configured to tilt forward as it approaches the top. The first outlet 222 may extend obliquely backward relative to the vertical axis Z extending in the vertical direction.

[0164] The front end 222a and the rear end 222b of the first discharge outlet can extend obliquely in the vertical direction and can extend parallel to each other. The front end 222a and the rear end 222b of the first discharge outlet can extend obliquely towards the lower side and further rearward relative to the vertical axis Z extending in the vertical direction.

[0165] The first tower 220 may include a first discharge guide 225 that directs air in the first distribution space 220s to the first discharge outlet 222.

[0166] The first tower 220 can be symmetrical to the second tower 230 with respect to the blowing gap S, and can have the same shape and structure as the second tower 230. The above description of the first tower 220 can also be applied to the second tower 230.

[0167] The following is for reference Figure 4 and Figure 5 This describes the air discharge structure of the blower 1 used to induce the Coanda effect. Figure 4 This is a diagram showing the shape of the blower 1 viewed from above and directly below. Figure 5 It shows along Figure 1 The diagram shows the shape of the blower 1 cut through by the RR′ line and viewed from above.

[0168] Reference Figure 4 The intervals D0, D1, and D2 between the first inner wall 221e and the second inner wall 231e can become smaller as they get closer to the center of the blowing gap S.

[0169] The first inner sidewall 221e and the second inner sidewall 231e can protrude toward the blowing gap S, and a shortest distance D0 can be formed between the apexes of the first inner sidewall 221e and the second inner sidewall 231e. The shortest distance D0 can be formed at the center of the blowing gap S.

[0170] The first discharge outlet 222 can be formed at a position further rear than the position where the shortest distance D0 is formed. The second discharge outlet 232 can be formed at a position further rear than the position where the shortest distance D0 is formed.

[0171] The front end 221b of the first tower and the front end 231b of the second tower can be separated by a first interval D1. The rear end 221c of the first tower and the rear end 231c of the second tower can be separated by a second interval D2.

[0172] The first interval D1 and the second interval D2 can be the same. The first interval D1 can be greater than the shortest distance D0, and the second interval D2 can be greater than the shortest distance D0.

[0173] The gap between the first inner sidewall 221e and the second inner sidewall 231e can decrease from the rear end 221c, 231c to the position where the shortest distance D0 is formed, and can increase from the position where the shortest distance D0 is formed to the front end 221b, 231b.

[0174] The front end 221b of the first tower and the front end 231b of the second tower can be tilted relative to the front-rear axis X.

[0175] The tangents drawn from the front end 221b of the first tower and the front end 231b of the second tower can have a specified angle of inclination A relative to the front and rear axis X.

[0176] A portion of the air expelled forward through the blowing gap S can flow at an angle A relative to the front-rear axis X.

[0177] The above structure can increase the diffusion angle of the air expelled forward through the blowing gap S.

[0178] When air is expelled forward through the blowing gap S, the first airflow converter 401 can be in a state of being introduced into the first plate slit 223.

[0179] When air is expelled forward through the blowing gap S, the second airflow converter 402 can be in a state of being introduced into the second plate slit 233.

[0180] Reference Figure 5 The direction of air flow expelled into the blowing gap S can be guided by the first discharge guide 225 and the second discharge guide 235.

[0181] The first ejection guide 225 may include: a first internal guide 225a, connected to the first inner sidewall 221e; and a first external guide 225b, connected to the first outer sidewall 221d.

[0182] The first internal guide 225a can be manufactured as an integral part of the first inner sidewall 221e, or it can be manufactured as a separate component.

[0183] The first external guide 225b can be manufactured as an integral part with the first outer sidewall 221d, or it can be manufactured as a separate component.

[0184] The first internal guide 225a may be formed to protrude from the first inner sidewall 221e toward the first distribution space 220s.

[0185] The first external guide 225b may be formed to protrude from the first outer side wall 221d toward the first distribution space 220s. The first external guide 225b may be formed to be spaced apart from the outer side of the first internal guide 225a, and a first discharge port 222 may be formed between it and the first internal guide 225a.

[0186] The radius of curvature of the first internal guide 225a can be formed to be smaller than the radius of curvature of the first external guide 225b.

[0187] Air in the first distribution space 220s can flow between the first internal guide 225a and the first external guide 225b and flow into the blowing gap S through the first discharge port 222.

[0188] The second ejection guide 235 may include: a second internal guide 235a connected to the second inner sidewall 231e; and a second external guide 235b connected to the second outer sidewall 231d.

[0189] The second internal guide 235a can be manufactured as an integral part of the second inner sidewall 231e, or it can be manufactured as a separate component.

[0190] The second external guide 235b can be manufactured as an integral part with the second outer side wall 231d, or it can be manufactured as a separate component.

[0191] The second internal guide 235a may be formed to protrude from the second inner sidewall 231e toward the second distribution space 230s.

[0192] The second external guide 235b may be formed to protrude from the second outer side wall 231d toward the second distribution space 230s. The second external guide 235b may be formed to be spaced apart from the outer side of the second inner guide 235a, and a second discharge port 232 may be formed between it and the second inner guide 235a.

[0193] The radius of curvature of the second inner guide 235a can be formed to be smaller than the radius of curvature of the second outer guide 235b.

[0194] Air in the second distribution space 230s can flow between the second internal guide 235a and the second external guide 235b and flow into the blowing gap S through the second discharge port 232.

[0195] The widths w1, w2, and w3 of the first discharge outlet 222 can be configured such that they gradually decrease from the inlet of the first discharge guide 225 to the outlet, and then gradually increase.

[0196] The inlet width w1 of the first ejection guide 225 can be greater than the outlet width w3 of the first ejection guide 225.

[0197] The inlet 222i of the first outlet 222 may have an inlet width w1. The outlet 222o of the first outlet 222 may have an outlet width w3. The inlet 222i of the first outlet 222 may be located further back than the outlet 222o. Air flowing into the first outlet 222 may flow forward from the inlet 222i toward the outlet 222o.

[0198] The inlet width w1 can be defined as the interval between the outer end of the first inner guide 225a and the outer end of the first outer guide 225b. The outlet width w3 can be defined as the interval between the inner end of the first inner guide 225a, i.e., the front end 222a of the first discharge port, and the inner end of the first outer guide 225b, i.e., the rear end 222b of the first discharge port.

[0199] The inlet width w1 and the outlet width w3 can be greater than the minimum width w2 of the first discharge outlet 222.

[0200] The shortest width w2 can be defined as the shortest distance between the rear end 222b of the first discharge port and the first internal guide 225a.

[0201] The width of the first discharge outlet 222 can gradually decrease from the inlet of the first discharge guide 225 to the position where the shortest width w2 is formed, and can gradually increase from the position where the shortest width w2 is formed to the outlet of the first discharge guide 225.

[0202] Similar to the first ejection guide 225, the second ejection guide 235 may also have a second ejection port front end 232a and a second ejection port rear end 232b, and may have the same width distribution as the first ejection guide 225.

[0203] The following is for reference Figure 6 Explain the configuration of the air guide 500. Figure 6 From Figure 1 The diagram shown shows a portion of the outer casing of the blower 1 cut open to reveal the internal structure of the second tower 230 and the tower base 160.

[0204] The air guide 500 may include: a first air guide 520 disposed in the first tower 220; and a second air guide 530 disposed in the second tower 230. The first air guide 520 and the second air guide 530 may have the same structure and may be symmetrical to each other with respect to the blowing gap S. The following description of the second air guide 530 is equally applicable to the first air guide 520.

[0205] The fan assembly 300 allows air from outside the blower 1 to flow into the lower housing 120 through the intake port 121. The air flowing into the lower housing 120 can then flow through the filter holes 131 to the pressurized space 300s. The lower housing 120 may include a door 129, which is removable from the lower housing 120. When the door 129 is separated from the lower housing 120, the filter 130 can be extracted from the inside of the housing.

[0206] Air flowing into the pressurization space 300s under the action of the fan assembly 300s can flow into the second tower 230s through the second distribution space 230s. The air flowing into the second tower 230s can flow upwards, and the direction of air flow can be guided by the second air guide 530.

[0207] The second air guide 530 can be configured on the upper side of the fan assembly 300 and can be configured within the second distribution space 230s.

[0208] Multiple second air guides 530 can be configured, and they can be spaced vertically. There is no limit to the number of second air guides 530, but up to four can be configured.

[0209] The second air guide 530 can extend from the rear end 231c of the second tower toward the front end 231b of the second tower in a front-rear direction. The guide rear end 532 of the second air guide 530 can be connected to the rear end 231c of the second tower. The guide front end 531 of the second air guide 530 can be spaced apart from the rear of the front end 231b of the second tower.

[0210] The second air guide 530 may be a plate extending in the horizontal direction and may have a curved shape. The guide inner end 533 of the second air guide 530 may be in close contact with or connected to the second inner sidewall 231e. The guide outer end 534 of the second air guide 530 may be in close contact with or connected to the second outer sidewall 231d. The second air guide 530 may be a curved plate extending between the second inner sidewall 231e and the second outer sidewall 231d.

[0211] The following is for reference Figure 7 The structure of the air guide 500 is described in detail. Figure 7 It shows a side perspective. Figure 6 A diagram showing the configuration of the blower 1.

[0212] For ease of explanation, the second air guide 530 will be used as an example to describe the air guide 500 below, but the description of the second air guide 530 can also be applied to the first air guide 520.

[0213] The second air guide 530 can be configured to be closer to the rear end 231c of the second tower than the front end 231b of the second tower. The front end 531 of the guide can be spaced behind the front end 231b of the second tower, and the rear end 532 of the guide can be spaced in front of the rear end 231c of the second tower.

[0214] The second air guide 530 can be fixed to the second tower housing 231 by engaging the rear end 532 of the guide with the rear end 231c of the second tower. The second air guide 530 can also be fixed to the second tower housing 231 by engaging the inner end 533 of the guide with the second inner wall 231e and the outer end 534 of the guide with the second outer wall 231d.

[0215] A plurality of air guides 500 may be configured, which may be spaced apart in the vertical direction. Air guides 500, 520, and 530 may include: a first guide 530a, a second guide 530b disposed above the first guide 530a, a third guide 530c disposed above the second guide 530b, and a fourth guide 530d disposed above the third guide 530c.

[0216] The first guide 530a may refer to the air guide 500 located at the bottom of the plurality of air guides 500. The bottom surface of the first guide 530a may face the fan assembly 300, and the top surface of the first guide 530a may face the bottom surface of the second guide 530b.

[0217] The second guide 530b can refer to an air guide 500 that is arranged adjacent to the first guide 530a among a plurality of air guides 500. The bottom surface of the second guide 530b can face the top surface of the first guide 530a, and the top surface of the second guide 530b can face the bottom surface of the third guide 530c.

[0218] The third guide 530c can refer to the air guide 500 that is arranged adjacent to the fourth guide 530d among the plurality of air guides 500. The bottom surface of the third guide 530c can face the top surface of the second guide 530b, and the top surface of the third guide 530c can face the bottom surface of the fourth guide 530d.

[0219] The fourth guide 530d can refer to the uppermost air guide 500 among a plurality of air guides 500. The bottom surface of the fourth guide 530d can face the top surface of the third guide 530c, and the top surface of the fourth guide 530d can face the upper end 231a of the second tower.

[0220] The second guide 530b and the third guide 530c may also refer to the air guide 500 disposed between the first guide 530a and the fourth guide 530d.

[0221] The air guide 500 can be formed in a curved manner. A portion of the plurality of air guides 500 can be formed to protrude upward. A portion of the plurality of air guides 500 can extend obliquely upward. A portion of the plurality of air guides 500 can be formed as a flat plate. A portion of the plurality of air guides 500 can be formed to be curved downward.

[0222] The first guide member 530a can be configured to curve downwards towards the front. The guide front end 531a of the first guide member 530a can be located further downwards than the guide rear end 532a. The first guide member 530a can extend horizontally forward from the tower rear end 231c, and can curve downwards towards the front. The tangent at the guide front end 531a of the first guide member 530a can have a downward tilt angle θ1 relative to the horizontal direction.

[0223] The second guide 530b may protrude upwards. The second guide 530b may bend forward from the rear end 231c of the tower and may have an upwardly protruding shape. The guide front end 531b of the second guide 530b may be located lower than the guide rear end 532b. The tangent at the guide front end 531b of the second guide 530b may have a downward tilt angle θ2 relative to the horizontal direction. The tangent at the guide rear end 532b of the second guide 530b may have a downward tilt angle α1 relative to the horizontal direction.

[0224] The third guide member 530c may protrude upwards. The third guide member 530c may bend forward from the rear end 231c of the tower and may have an upwardly protruding shape. The front end 531c of the third guide member 530c may be located higher than the rear end 532c. The tangent at the front end 531c of the third guide member 530c may have a downward tilt angle θ3 relative to the horizontal direction. The tangent at the rear end 532c of the third guide member 530c may have a downward tilt angle α2 relative to the horizontal direction.

[0225] The fourth guide member 530d can extend upwards at an angle. The fourth guide member 530d can extend forward from the rear end 231c of the tower and can have a flat plate shape. The front end 531d of the fourth guide member 530d can be located higher than the rear end 532d. The top and bottom surfaces of the fourth guide member 530d can have an upward tilt angle θ4 relative to the horizontal direction. The tilt angle θ4 of the fourth guide member 530d can remain constant in the front-to-back direction.

[0226] The distances between the plurality of air guides 530a, 530b, 530c, and 530d and the tower front end 231b can be different for each other.

[0227] The first guide 530a can be separated from the tower front end 231b by a first interval G1. The second guide 530b can be separated from the tower front end 231b by a second interval G2. The third guide 530c can be separated from the tower front end 231b by a third interval G3. The fourth guide 530d can be separated from the tower front end 231b by a fourth interval G4.

[0228] Among the plurality of air guides 500, the ones positioned on the lower side can have wider spacings G1, G2, G3, G4 between them and the tower front end 231b. The first spacing G1 can be wider than the second spacing G2, the second spacing G2 can be wider than the third spacing G3, and the third spacing G3 can be wider than the fourth spacing G4.

[0229] The front end 231b of the second tower can extend at an angle relative to the vertical direction. The front end 231b of the second tower can extend at an angle towards the rear as it gets closer to the upper side. The front end 231b of the second tower can extend towards the vertical axis Z located at the center as it gets closer to the upper side. The front end 231b of the second tower can have a rearward tilt angle β1 relative to the vertical direction.

[0230] The rear end 231c of the second tower can extend at an angle relative to the vertical direction. The rear end 231c of the second tower can extend forward at an angle closer to the top. The rear end 231c of the second tower can be closer to the vertical axis Z located at the center, towards the top. The rear end 231c of the second tower can have an angle β2 forward relative to the vertical direction.

[0231] The second outlet 232 can extend at an angle relative to the vertical direction. The second outlet 232 can extend forward at an angle closer to the upper side. The second outlet 232 can extend closer to the vertical axis Z located at the center, closer to the upper side. The second outlet 232 can extend parallel to the rear end 231c of the second tower. The front end 232a and the rear end 232b of the second outlet can extend parallel to each other.

[0232] Because the tower front end 231b, tower rear end 231c, and outlet 232 are formed at an angle, and the intervals G1, G2, G3, and G4 between the air guide 500 and the tower front end 231b become narrower towards the top, the air blown by the fan 320 can be smoothly guided to the outlet 232 under the action of the air guide 500. Furthermore, because the tower front end 231b, tower rear end 231c, and outlet 232 are formed at an angle, and the intervals G1, G2, G3, and G4 between the air guide 500 and the tower front end 231b become narrower towards the top, the air discharged through the outlet 232 can be evenly distributed vertically.

[0233] More specifically, the air blown by fan 320 has higher pressure closer to fan 320 and lower pressure farther away from fan 320. Therefore, by forming a wider gap between the air guide 500 located near fan 320 and the tower front end 231b, more airflow is guided to diffuse upwards, while preventing air discharged through outlet 232 from concentrating at the bottom. Furthermore, by forming a narrower gap between the air guide 500 located away from fan 320 and the tower front end 231b, air with reduced flow velocity during upward flow is not separated but guided by the air guide 500 to outlet 232.

[0234] The following is for reference Figure 8 The handle is 170. Figure 8 This is a partial enlarged view of the longitudinal section of the blower 1.

[0235] The blower 1 may include a handle 170 disposed between the fan 320 and the air guide 500. The handle 170 may extend from the upstream side of the air guide 500 toward the front end 221b of the first tower.

[0236] The handle 170 can protrude into the interior space of the lower outer casing 120. The handle 170 can also protrude into the interior space of the tower base 160. A cutout can be formed on the outer peripheral wall of the tower base 160, and the handle 170 can be inserted into the cutout of the tower base 160.

[0237] The handle 170 can be located at the rear of the lower housing 120. The handle 170 can be located closer to the rear end 221c of the tower than the front end 221b of the tower. When viewing the blower 1 from the front, the handle 170 may be obscured by the front of the lower housing 120 and therefore not visible.

[0238] The handle 170 can be configured between the recess 161 and the fan 320. The handle 170 can be configured inside the tower base 160 and can be configured on the underside of the recess 161.

[0239] The handle 170 may include: a first wall 171 extending forward toward the interior of the lower housing 120; a guide wall 172 spaced apart from the lower side of the first wall 171; and a second wall 173 connecting the first wall 171 and the guide wall 172.

[0240] The first wall 171 can penetrate the lower outer shell 120 and extend forward. The first wall 171 can extend horizontally.

[0241] The guide wall 172 may extend upward at an angle toward the front end 221b of the first tower 220. The guide wall 172 may have an angle of inclination θ relative to the horizontal direction. The guide wall 172 may be configured above the fan 320 and may face the fan 320 in the vertical direction.

[0242] The second wall 173 can extend upward from the guide wall 172 and connect with the first wall 171. The second wall 173 can extend in a vertical direction.

[0243] The handle 170 may include a gripping space 174 recessed radially inward toward the lower housing 120. The gripping space 174 may be formed between the first wall 171 and the guide wall 172. The second wall 173 may shield the front of the gripping space 174.

[0244] A channel 301 for airflow from the fan 320 can be formed between the fan motor housing 330 and the lower housing 120. The channel 301 provides an upward flow path for the air blown from the fan 320.

[0245] The fan motor housing 330 may include: a first housing wall 333 extending in a vertical direction; and a second housing wall 334 connected to the first housing wall 333 on the upper side of the fan 320 and extending obliquely toward the handle 170.

[0246] The first housing wall 333 can be configured to surround the fan motor 310. The first housing wall 333 can be spaced apart from the lower housing 120.

[0247] The second housing wall 334 can extend downward from the first housing wall 333. The second housing wall 334 can be inclined radially inward towards the lower outer shell 120 as it gets closer to the lower side.

[0248] Channel 301 can be formed between the fan motor housing 330g and the lower housing 120. Channel 301 can be formed in the space between the first housing wall 333 and the lower housing 120 and the second housing wall 334 and the lower housing 120.

[0249] Between the second housing wall 334 and the lower housing 120, the channel 301 can become narrower in the horizontal direction as it approaches the upper side. Therefore, the air blown from the fan 320 can be accelerated as it passes through the channel 301.

[0250] A diffuser 340 may be disposed between the first housing wall 333 and the lower housing 120. The diffuser 340 may extend in the vertical direction. The diffuser 340 may guide the flow of air into the channel 301 upward.

[0251] The handle 170 can be configured on the upper side of the channel 301. The handle 170 can face the channel 301 in the vertical direction. The handle 170 can be configured on the upper side of the diffuser 340.

[0252] Air blown from fan 320 can reach guide wall 172 of handle 170 through channel 301. Air reaching guide wall 172 can flow along the inclined surface of guide wall 172 toward front end 221b of first tower 220.

[0253] The width w1 of the handle 170 protruding into the interior space of the lower housing 120 can be smaller than the width w2 of the channel 301. Therefore, a portion of the air passing through the channel 301 can flow upward without reaching the guide wall 172.

[0254] An acceleration channel 302 may be formed between the handle 170 and the fan motor housing 330. The acceleration channel 302 may communicate with the channel 301. The acceleration channel 302 may refer to the space extending from the upper side of the channel 301 toward the front end 221b of the first tower 220.

[0255] The fan motor housing 330 may include an edge 335 facing the guide wall 172. The edge 335 may be formed on the upper part of the fan motor housing 330. The edge 335 may refer to the upper end of the first housing wall 333.

[0256] An acceleration channel 302 can be formed between the edge 335 and the guide wall 172. The width w3 of the acceleration channel 302 can be smaller than the width w2 of the channel 301.

[0257] The air velocity through channel 301 can be increased when passing through acceleration channel 302. The airflow direction through channel 301 can be guided by guide wall 172, and its velocity can be increased when passing through acceleration channel 302. Air flowing along guide wall 172 towards the front end 221b of the first tower can diffuse forward by increasing its velocity in acceleration channel 302.

[0258] The first tower 220 may include a protrusion 228 extending from the front end 221b of the first tower toward the first outlet 222. The protrusion 228 may be located between the air guide 500 and the handle 170. The protrusion 228 may be integrally formed with the front end 221b of the first tower.

[0259] The protrusion 228 can be located higher than the groove 161. The protrusion 228 can be located higher than the extension line L of the guide wall 172.

[0260] The first tower 220 may include: a lower guide 227 extending downward from the protrusion 228; and an upper guide 229 extending upward from the protrusion 228.

[0261] Air flowing along the guide wall 172 towards the front end 221b of the first tower can reach the lower guide member 227. Air reaching the lower guide member 227 can be guided rearward by the protrusion 228 to reach the air guide member 500. Air reaching the air guide member 500 can flow rearward along the air guide member 500 and be discharged through the first discharge port 222 to the blowing gap S. However, the flow path of air blown from the fan 320 is not limited to the above. For example, air blown from the fan 320 can be directly discharged through the first discharge port 222, can flow upward along the first distribution space 220s, can be guided forward by the guide wall 172 to reach the protrusion 228, or can be guided forward by the guide wall 172 to reach the upper guide member 229.

[0262] The air guide 500 can tilt downwards as it gets closer to the front. The air guide 500 can also tilt towards the protrusion 228 as it gets closer to the front. Air guided rearward by the protrusion 228 can reach the guide tip 501 of the air guide 500. The guide tip 501 can be located further forward than the first discharge port 222. Air reaching the guide tip 501 can flow rearward along the air guide 500 and be discharged through the first discharge port 222.

[0263] The following is for reference Figure 9 Explain the detailed structure of handle 170. Figure 9 The diagram shows the handle 170 enlarged in the longitudinal sectional view of the blower 1.

[0264] A gripping space 174 can be formed at the rear of the lower outer casing 120. The gripping space 174 can refer to the space inside the handle 170. The user can put their hand into the gripping space 174 to move the blower 1.

[0265] The handle 170 may include a grip portion 175 that protrudes downward from the first wall 171. The grip portion 175 may protrude downward further than the bottom surface of the first wall 171.

[0266] The grip portion 175 may include: a first grip portion 175a, which protrudes downward from the first wall 171; and a second grip portion 175b, which extends forward and upward from the first grip portion 175a.

[0267] The user can place their hand in the grip space 174 and place their fingers on the grip portion 175. The user can place their fingers on the inclined surface of the second grip portion 175b.

[0268] The grip portion 175 may have a first fastening hole 175s that opens in the vertical direction. The grip portion 175 may be fixed to the handle 170 by a first fastening member 176 that passes through the first fastening hole 175s.

[0269] The handle 170 may include a placement portion 177 that protrudes downward from the guide wall 172. The placement portion 177 may be located inside the lower housing 120.

[0270] The lower housing 120 may include an end portion 120a disposed adjacent to the handle 170. The end portion 120a may bend outward toward the outer side of the lower housing 120 as it approaches the upper side.

[0271] The placement part 177 can be configured inside the end 120a. The placement part 177 can be connected to the lower housing 120 and can be connected to the end 120a. The placement part 177 can also be combined with the lower housing 120 by a separate fastening member (not shown).

[0272] By connecting the placement part 177 to the lower housing 120 on the inside of the lower housing 120, it is possible to prevent the handle 170 from separating from the lower housing 120.

[0273] The handle 170 may include a protrusion 178 that protrudes toward the recess 161. The protrusion 178 may protrude upward from the first wall 171.

[0274] The protrusion 178 may include a second fastening hole 178s that is open in the vertical direction. The handle 170 may be engaged with the groove 161 by a second fastening member 179 that is inserted into the second fastening hole 178s.

[0275] As described above, the tower base 160 can be disposed below the first tower 220 and the second tower 230 to connect the first tower 220 and the second tower 230, and can also be disposed above the lower housing 120. The internal space of the tower base 160 can be referred to as the distribution channel 160s. The distribution channel 160s can distribute the air that has passed through the pressurized space 300s to the first distribution space 220s and the second distribution space 230s. One end of the distribution channel 160s can communicate with the pressurized space 300s, and the other end can communicate with the first distribution space 220s and the second distribution space 230s.

[0276] On the other hand, the aforementioned groove can also be referred to as a bridge 161 in the sense of connecting the first tower 220 and the second tower 230 separated by the blowing gap S. As described above, the first inner wall 221e of the first tower 220 can extend upward from one side 161a of the bridge 161, and the second inner wall 231e of the second tower 230 can extend upward from the other side 161b of the bridge 161. The bridge 161 can connect the lower parts of the first inner wall 221e and the second inner wall 231e. The bridge 161 can connect the lower parts of the facing surfaces 221e and 231e of the first tower 220 and the second tower 230 on their outer surfaces. The bridge 161 can connect the lower parts of the first inner wall 221e of the first tower 220 and the second inner wall 231e of the second tower 230 (see reference). Figure 1 ).

[0277] As described above, the bridge 161 can be a shape that is concave to the downward side. Therefore, the air flowing in the distribution channel 160s can flow smoothly along the concave surface of the bridge 161 to the first distribution space 220s and the second distribution space 230s.

[0278] On the other hand, as mentioned above, the blower 1 can be in the shape of a cone or a frustum of a cone (see reference). Figure 1 Therefore, the first tower 220, the second tower 230, and the blowing gap S, which form a continuous surface with the lower outer shell 120, can be generally conical or frustum-shaped. That is, the continuous surface formed by the first tower 220, the second tower 230, and the blowing gap S with the lower outer shell 120 can become narrower closer to the upper cross-sectional area.

[0279] The intervals D0, D1, and D2 between the first inner wall 221e and the second inner wall 231e can become smaller as they get closer to the center of the blowing gap S (see reference). Figure 4 The tower front ends 221b and 231b, the tower rear ends 221c and 231c, and the outlets 222 and 232 can be configured to slope towards the center of the planar cross-section. The loads of the first tower 220 and the second tower 230 can be concentrated at the center of the tower base 160 in the planar cross-section.

[0280] Since the first tower 220 and the second tower 230 are separated by the blowing gap S, the load of the first tower 220 and the second tower 230 can be concentrated on the lower part of the first inner wall 221e and the second inner wall 231e.

[0281] Since the first outlet 222 and the second outlet 232 can extend relatively long in the vertical direction, and the first tower 220 and the second tower 230 can also extend relatively long in the vertical direction, the blower 1 may be susceptible to external forces that widen or narrow the first tower 220 and the second tower 230.

[0282] In this case, a support member 620 may be provided to transfer the load of the upper part of the blower 1 (particularly the load concentrated on the inner wall 221e of the first tower 220 and the inner wall 231e of the second tower 230) to the lower part of the blower 1. Referring below... Figure 1 , Figure 8 and Figure 9 Especially referring to Figure 8 Let's explain the support component 620.

[0283] The support member 620 can be disposed inside the tower base 160. The support member 620 can be disposed inside the tower base 160, spaced apart from it. The support member 620 can be disposed near the center of the internal planar cross-section of the tower base 160. The support member 620 can be disposed below the first tower 220 and the second tower 230. The support member 620 can be disposed above the motor housing 330.

[0284] Support member 620 can connect bridge 161 to motor housing 330. Support member 620 can connect the lower parts of the opposing surfaces of the first tower 220 and the second tower 230 (i.e., the first inner wall 221e and the second inner wall 231e) to motor housing 330. Support member 620 can transfer the load of the first tower 220 and the second tower 230 to motor housing 330. Motor housing 330 transfers the received load to lower outer casing 120 through diffuser 340.

[0285] The support member 620 can be connected to the vicinity of the center in the front-rear direction of the bridge 161. Therefore, by means of the shape of the blower 1 described above, it is possible to stably support the load concentrated in the central part of the planar cross-section.

[0286] The support member 620 may include: a first protrusion 622a extending upward from the upper part of the support member 620; and a second protrusion 622b extending upward from the upper part of the support member 620 and spaced apart from the first protrusion 622a. The first protrusion 622a and the second protrusion 622b may face each other. The first protrusion 622a and the second protrusion 622b may be symmetrical in shape. The first protrusion 622a and the second protrusion 622b may be integrally formed with the support member 620.

[0287] A portion of the bridge 161 can be inserted between the first protrusion 622a and the second protrusion 622b. The bridge 161 can be inserted between the first protrusion 622a and the second protrusion 622b and fastened to the support member 620. The bridge 161 may have an insertion portion 161c that inserts between the first protrusion 622a and the second protrusion 622b. The insertion portion 161c of the bridge 161 may be in a shape that protrudes downward from the bridge 161. The insertion portion 161c of the bridge 161 may be integrally formed with the bridge 161. The insertion portion 161c may be in a shape corresponding to the space between the first protrusion 622a and the second protrusion 622b. The bottom surface of the insertion portion 161c can be fixed to the top surface of the support member 620 by a separate fastening member 650. The fastening member 650 may be, for example, a bolt that penetrates both the bottom surface of the insertion portion 161c and the top surface of the support member 620.

[0288] The support member 620 may be generally cylindrical. The support member 620 may include an extension 624 extending laterally from its lower portion. The extension 624 may connect to the upper portion of the motor housing 330. The cross-sectional area of ​​the extension 624 may correspond to the cross-sectional area of ​​the upper portion of the motor housing 330. In this case, the upper portion of the motor housing 330 can also be understood as the extension 624 of the support member 620. The edge 335 of the motor housing 330 can also be understood as the outer end of the extension 624. By providing an extension 624 with a wider cross-sectional area at the lower portion of the support member 620, the load transmitted from the upper portion can be stably transferred to the motor housing 330.

[0289] The support member 620 can become narrower as it gets closer to the upper side. Therefore, the load transmitted from the top can be stably transmitted to the motor housing 330, while minimizing the area occupied by the support member 620 in the distribution channel 160s to reduce flow resistance.

[0290] On the other hand, the aforementioned fan motor housing 330 can be simply referred to as motor housing 330. As described above, the motor housing 330 can be disposed inside the lower housing 120 and spaced apart from the lower housing 120 to form a channel 301 between the motor housing 330 and the lower housing 120. As described above, the motor housing 330 can be configured to surround the fan motor 310. As described above, the diffuser 340 can be disposed between the motor housing 330 and the lower housing 120. The diffuser 340 can connect the periphery of the motor housing 330 and the lower housing 120. Therefore, the load transmitted from the support member 620 to the motor housing 330 can be transmitted to the lower housing 120 through the diffuser 340.

[0291] On the other hand, as described above, the handle 170 can protrude into the interior space of the tower base 160. The tower base 160 can be integrally formed with the lower housing 120, and the description of the lower housing 120 related to the handle 170 can also be understood as related to the tower base 160.

[0292] The handle 170 can be configured in the tower base 160 at a height corresponding to the support 620. The support 620 may include a first surface 626a facing a side of the handle 170 protruding into the interior space (i.e., the second wall 173) and a second surface 626b disposed on the opposite side of the first surface 626a. For example, the first surface 626a may be the rear surface of the support 620, and the second surface 626b may be the front surface of the support 620. The first surface 626a may face the front surface of the tower base 160, and the second surface 626b may face either the handle 170 or the rear surface of the tower base 160.

[0293] The first surface 626a can be tilted toward the second surface 626b at a predetermined first angle s1. The first angle refers to the degree to which the first surface 626a is tilted toward the second surface 626b, with an imaginary vertical line in the up-down direction as a reference. The second surface 626b of the support member 620 can be tilted toward the first surface 626a at a predetermined second angle s2. The second angle refers to the degree to which the second surface 626b is tilted toward the first surface 626a, with an imaginary vertical line in the up-down direction as a reference. The first angle s1 can be greater than the second angle s2.

[0294] The flow resistance of the air flowing in the distribution channel 160s may increase accordingly with the degree to which the handle 170 protrudes into the interior space of the tower base 160. Therefore, by tilting the first surface 626a of the support 620, which faces the handle 170, to correspond to the direction of the handle 170's protrusion as described above, it is possible to prevent the increase in flow resistance caused by the handle 170 in the distribution channel 160s.

[0295] The blower 1 may include: a lower housing 120 having an intake 121; a fan 320 disposed inside the lower housing 120; a fan motor 310 disposed above the fan 320; a motor housing 330 disposed inside the lower housing 120 and spaced apart from the lower housing 120, surrounding the fan motor 310; a diffuser 600 connecting the periphery of the motor housing 330 to the lower housing 120; a first tower 220 disposed above the lower housing 120, extending upwardly and having a first discharge outlet 222; a second tower 230 disposed above the lower housing 120, spaced apart from the first tower 220, extending upwardly and having a second discharge outlet 232; and a support member 620 connecting the lower portions of the faces 221e and 231e of the first tower 220 and the second tower 230 facing each other to the motor housing 330.

[0296] The blower 1 may also include a bridge 161, which connects the lower parts of the faces 221e and 231e of the first tower 220 and the second tower 230 facing each other on the outer surfaces of the first tower 220 and the second tower 230. The support member 620 may connect the bridge 161 to the motor housing 330.

[0297] In the blower 1, the support member 620 may include an extension 624 extending laterally from the lower part of the support member 620, and the extension 624 may be connected to the upper part of the motor housing 330.

[0298] In the blower 1, the cross-sectional area of ​​the extension 624 can correspond to the cross-sectional area of ​​the upper part of the motor housing 330.

[0299] In the blower 1, the support member 620 can become narrower as it gets closer to the upper side.

[0300] The blower 1 may also include a handle 170, which is disposed in the lower housing 120 at a height corresponding to the support member 620. One side protrudes inward and the other side opens outward to form a gripping space 174. The support member 620 may include a first surface 626a facing the handle 170 and a second surface 626b disposed on the opposite side of the first surface 626a. The first surface 626a may be inclined toward the second surface 626b at a predetermined first angle s1.

[0301] In the blower 1, the second surface 626b of the support member 620 can be tilted toward the first surface 626a at a predetermined second angle s2, and the first angle s1 can be greater than the second angle s2.

[0302] The blower 1 may also include a blowing gap S that is open forward and backward between the first tower 220 and the second tower 230, and the first tower 220, the second tower 230 and the blowing gap S may form a continuous surface with the lower outer shell 120.

[0303] In the blower 1, the continuous surface can be a truncated cone whose cross-sectional area becomes narrower as it approaches the upper side.

[0304] In the blower 1, the first tower 220 may include: a first inner sidewall 221e, facing the second tower 230, forming the inner side of the first tower 220; and a first outer sidewall 221d, forming the outer side of the first tower 220. In the blower 1, the second tower 230 may include: a second inner sidewall 231e, facing the first tower 220, forming the inner side of the second tower 230; and a second outer sidewall 231d, forming the outer side of the second tower 230. The bridge 161 may connect the lower parts of the first inner sidewall 221e and the second inner sidewall 231e.

[0305] In the blower 1, the bridge 161 may be recessed to the lower side.

[0306] In the blower 1, the support member 620 can be connected to the vicinity of the center in the front-rear direction of the bridge 161.

[0307] In the blower 1, the support member 620 may include: a first protrusion 622a extending upward from the upper part of the support member 620; and a second protrusion 622b extending upward from the upper part of the support member 620 and spaced apart from the first protrusion 622a, and a portion of the bridge 161 may be inserted between the first protrusion 622a and the second protrusion 622b.

[0308] The preferred embodiments of the present invention have been illustrated and described above. However, the present invention is not limited to the specific embodiments described above. Within the scope of the spirit of the present invention as claimed in the claims, those skilled in the art can of course make various modifications, and such modifications should not be understood separately from the technical concept or prospect of the present invention.

[0309] This invention can be modified and implemented in various forms, and its scope of protection is not limited to the embodiments described above. Therefore, if a modified embodiment contains the constituent elements of the claims of this invention, it should be considered to fall within the scope of protection of this invention.

[0310] The embodiments of the present invention described above, or other embodiments thereof, are not mutually exclusive or different from each other. The structures or functions described above may be used together or combined.

[0311] This means that, for example, structure A illustrated in a particular embodiment and / or the accompanying drawings can be combined with other embodiments and / or structures B illustrated in the accompanying drawings. In other words, even if the combination between structures is not directly described, combination is possible except in cases where combination is impossible.

[0312] The detailed description above should not be construed as limiting in all respects, but rather as illustrative. The scope of the invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within its scope.

Claims

1. A blower, wherein, include: The lower housing has an intake port, and a fan is housed inside the lower housing. The first tower is disposed on the upper side of the lower outer shell, extends in the vertical direction, and forms a first discharge port; The second tower is disposed on the upper side of the lower outer shell, spaced apart from the first tower, and extends in the vertical direction to form a second discharge port; A blowing gap is formed between the first tower and the second tower, through which air discharged from the first outlet and the second outlet flows; A tower base, disposed between the first tower, the second tower, and the lower housing, distributes air blown from the lower housing to the first tower and the second tower; A fan motor that provides power to the fan; A fan motor housing that houses the fan motor inside the fan motor housing, the fan motor housing being separated from the inner circumferential surface of the lower housing, thereby forming a channel for airflow from the fan between the fan motor housing and the lower housing; as well as The handle is recessed inward from the base of the tower and faces the channel vertically from the upper side of the channel. The first discharge outlet is positioned closer to the rear end of the first tower than the front end of the first tower. The second outlet is positioned closer to the rear end of the second tower than the front end of the second tower. The handle includes a guide wall that extends forward and upward from the tower base and faces the fan vertically from above the fan.

2. The blower according to claim 1, wherein, The width of the handle protruding into the lower housing is less than the horizontal width of the channel.

3. The blower according to claim 2, wherein, An acceleration channel is formed between the handle and the fan motor housing. This acceleration channel is a space through which air is accelerated inwards. The width of the acceleration channel is the distance from the top of the fan motor housing to the guide wall of the handle, and the width of the acceleration channel is narrower than the horizontal width of the channel.

4. The blower according to claim 1, wherein, The first tower includes a first inner wall facing the blowing gap. The second tower includes a second inner wall facing the blowing gap. The tower base includes a groove formed to connect the first inner wall and the second inner wall and to be recessed downward.

5. The blower according to claim 4, wherein, The handle is positioned vertically between the groove and the fan.

6. The blower according to claim 5, wherein, The first tower includes a protrusion that extends rearward from the front end toward the first discharge outlet.

7. The blower according to claim 6, wherein, The protrusion is positioned higher than the groove.

8. The blower according to claim 6, wherein, The protrusion is positioned higher than the extension line of the guide wall.

9. The blower according to claim 8, wherein, The first tower includes: An upper guide member, disposed on the upper side of the protrusion, extends along the length direction of the first tower and the second tower; and A lower guide is disposed on the lower side of the protrusion and extends along the length direction of the first tower and the second tower; The protrusion protrudes further rearward than the upper guide and the lower guide.

10. The blower according to claim 9, wherein, The lower guide extends downward at an angle from the lower part of the protrusion toward the front ends of the first tower and the second tower. The upper guide extends upward at an angle from the protrusion.

11. The blower according to claim 9, wherein, The protrusion is positioned higher than the extension line of the guide wall.

12. The blower according to claim 4, wherein, The fan motor housing includes: A first housing wall surrounds the upper part of the fan motor and extends in the vertical direction; and The second housing wall surrounds the lower part of the fan motor and is connected to the lower end of the first housing wall; The second housing wall extends toward the handle at an angle relative to the vertical direction.

13. The blower according to claim 1, wherein, The handle also includes: A first wall extends forward from the base of the tower and is spaced upward from the guide wall; and The second wall extends upward from the guide wall and connects with the guide wall.

14. The blower according to claim 13, wherein, The handle also includes a gripping portion that protrudes downward from the first wall.

15. The blower according to claim 1, wherein, It also includes an air guide, which is disposed inside the first tower, spaced apart from the front end of the first tower, and extends toward the first discharge port in a front-rear direction. The first discharge port extends in the vertical direction. The air guides are arranged in a plurality of spaced-apart configurations along the length of the first discharge port.

16. The blower according to claim 15, wherein, The first discharge outlet is configured to be adjacent to the rear end of the first tower. The front end of the air guide is located further forward than the first discharge port.

17. The blower according to claim 15, wherein, The air guide extends downwards relative to the horizontal direction as it gets closer to the front end.

18. The blower according to claim 1, wherein, The front end of the first tower leans further back towards the top.

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