JP2017503998A - Multi-blade diffusion fan assembly for ceiling cassette air conditioner attachment - Google Patents

Abstract

The present invention is a conventional ceiling cassette air conditioner room which is attached to the ceiling of a building room and is provided with both four jet outlets formed so as to surround the periphery of the suction port in the direction of one suction grill 4 at the front center thereof. In order to overcome the limitations of the airflow discharge structure of the conventional ceiling cassette air conditioner indoor unit, the airflow discharge range of the machine is very narrow, so the cooling or heating cannot be evenly distributed and the cooling and heating efficiency is reduced. It can be attached as it is without changing the structure of the air conditioner indoor unit, and it is driven without power by receiving the discharge air current discharged from the air outlet of the air conditioner indoor unit, and the discharge air is drawn in the direction of the hub axis to radiate outward It is related with the assembly which forms the multiblade diffusion fan of the ceiling cassette air-conditioner indoor unit attachment use which carries out diffusion induction so that discharge airflow may spread widely indoors. [Selection] Figure 1

Description

  The present invention relates to an assembly of a multi-blade diffusion fan for attaching a ceiling cassette air conditioner. More specifically, the present invention is attached to a ceiling in a building room, and surrounds one inlet grill 4 in the center of the front surface and surrounds the periphery of the inlet. Conventional ceiling cassette air conditioner indoor unit equipped with four spouts formed in the air outlet has a very narrow air flow discharge range, so it is impossible to disperse cold heat or heat evenly, resulting in lower cooling and heating efficiency In order to overcome the limitations of the airflow discharge structure of the ceiling cassette air conditioner indoor unit, the ceiling cassette air conditioner indoor unit can be attached as it is without changing the structure of the ceiling cassette air conditioner indoor unit, and the discharge airflow discharged from the outlet of the air conditioner indoor unit can be received. The ceiling that is driven without power and draws the discharge air in the direction of the hub axis to generate a radially outward air flow, which diffuses and guides the discharge air flow so that it spreads widely in the room. In forming a multi-blade diffusion fan for use in a set air conditioner indoor unit, the diffusion fan has an asymmetrical font shape, and many blades of hydrodynamic shapes are used as blades so that the wind can be finely dispersed and sent. Shaped rotor blades are extended like a round frame in a state of being spaced apart from each other by a fixed angle, and the rotor blade shape is formed and assembled with directionality. By providing a multi-blade discharge airflow diffusion fan that has a unique shape, it supplies a wide range of indoor air that is softer and richer than the airflow of existing air conditioners, and can be used in many directions. At the same time, it can continuously blow the wind, maximize the air blowing efficiency, reduce the energy consumption, and the ceiling air conditioner as an original air flow diffusion fan This is a multi-blade diffuser fan assembly for ceiling cassette air conditioner attachment that provides a natural ventilation effect of leaves, which is visually beautiful, along with a ventilation function that spreads to a wide range around the indoor unit and creates a comfortable indoor environment for the occupants It is.

  Almost all buildings, such as large buildings and ordinary homes, are equipped with air conditioners for indoor air conditioning, adjusting the indoor air to a comfortable state.

  The air conditioner is an abbreviation for an air conditioner (air conditioner), a ceiling type that is attached so that its front surface appears on an indoor ceiling, a stand type package type, a wall hanging type that is attached to an indoor wall, and an air conditioner There is a ceiling cassette type part of which is embedded in a wall or ceiling, and an indoor unit equipped with an evaporator and a blower fan, and an outdoor unit equipped with a compressor, a condenser, and an expansion valve The air conditioner can be divided into a separate air conditioner composed of an outdoor unit and an integrated air conditioner not provided with an outdoor unit.

  The indoor unit of the ceiling cassette type air conditioner that can be used while attached to the ceiling in the air conditioner is attached to the ceiling of the room, and usually has an indoor air intake grille formed at the center of the bottom of the housing. Airflow outlets are formed on the four left and right sides, and a blower structure that sucks room air from the suction grill at the center of the indoor unit and discharges the heat exchanged air from the four side surfaces. It discharges after heating, and comes to air-condition the room.

  However, since the ceiling cassette type air conditioner is mounted on the ceiling, the space utilization degree is good, and the airflow for cooling or heating is discharged obliquely downward in four directions from above, and thus has various advantages such as diffusion of the airflow. In spite of this, the air-conditioning airflow does not spread far, the air blowing range is limited, the blind spot area of the air-conditioning is generated, and if cold wind hits directly, discomfort occurs, causing cooling disease and harming health Due to the large temperature difference between the upper and lower parts due to the lower low temperature phenomenon during cooling and the upper high temperature phenomenon during heating, it is difficult to achieve comfortable cooling and heating, and there is heat loss in buildings with a ceiling height of over 3.0 m. Since the temperature difference between the upper and lower sides is large, there is a problem that the efficiency of energy utilization decreases, for example, the preheating precooling time becomes long.

  In addition, as a prior art for solving the above problem, the “air flow diffusion device” of Patent Document 1 is an air flow diffusion device attached to a ceiling-embedded air conditioner, and discharges from the air outlet of the air conditioner The impeller is rotated by the wind, and the rotating blade member receives the wind and repels it in sequence, so that the discharge air from the air conditioner that blows out can be diffused throughout the air-conditioned space, eliminating a certain amount of room temperature deviation, but energy loss The structure is complicated, difficult to manufacture and disassemble, there is a limit to improving the diffusion performance of the discharge airflow, and the ordinary blade configuration also provides a unique decorative effect that changes the atmosphere of the indoor space There is a problem that can not be.

  Therefore, the present inventor pays attention to the above viewpoint, and air diffusibility, safety and durability, aesthetics, and work productivity are greatly improved as compared with the prior art, which is close to natural wind and more than existing air conditioner wind. However, it is possible to diffuse and supply soft and rich winds in a wide range of indoors, and to simultaneously and continuously apply wind to users in many directions to maximize air blowing efficiency and reduce energy consumption. As a result of efforts to develop an assembly of a multi-blade diffusion fan for attaching a ceiling cassette air conditioner that can effectively and comprehensively satisfy various applications, the present invention has been completed.

Republic of Korea Patent Publication No. 10-2007-0072886 (July 06, 2007)

  Therefore, the present invention has been made in view of the above circumstances, and the purpose thereof is that the air flow discharge range of the conventional ceiling cassette air conditioner indoor unit is very narrow, so that cold heat or heat cannot be evenly distributed. In order to overcome the limitations of the airflow discharge structure of the ceiling cassette air conditioner indoor unit, where the cooling and heating efficiency is reduced, the discharge airflow is received and driven without power, and the discharge air is drawn in the direction of the hub axis to generate a radially outward airflow. In the formation of a multi-blade diffusion fan for ceiling cassette air conditioner indoor unit application that diffuses and induces the discharge air current to spread widely in the room, a softer and richer wind than the existing air conditioner wind is diffused and supplied in the room Ceiling cassette air conditioner indoor unit that maximizes air blowing efficiency and reduces energy consumption by allowing users in multiple directions to hit the wind simultaneously and continuously It is to provide an airflow diffuser fan.

  As described above, the present invention can be attached as it is without changing the structure of the ceiling cassette air conditioner indoor unit, and is driven without power by receiving the discharge air current discharged from the outlet of the air conditioner indoor unit. Is formed in a multi-blade diffusion fan for ceiling cassette air conditioner indoor unit application, which generates a radially outward air flow by pulling in the hub axis direction and diffuses and guides the discharged air flow to spread widely in the room. Rather than a simple diffuser fan with a plurality of radially separated blades, the diffuser fan is a streamlined, asymmetrical wide-spread character shape that makes air flow smoother. The unit rotor blades, which are shaped like a large tree and spread in many directions with a hydrodynamic shape so that the wind can be finely dispersed and sent, uniformly generate diffuse airflow in the circumferential direction. In order to achieve this, a plurality of unit rotor blades of two or more are connected together like a round frame in a state of being separated from each other by a fixed angle, and have a rotor blade (blade) shape formed with directionality. A multi-blade discharge airflow diffusion fan that has a gentle and hydrodynamic shape, and directs the direction of rotation in one direction of the circumference so that a larger centrifugal force can be applied to the airflow discharged from the air conditioner. A swirling flow can be formed by the centrifugal force of the circular locus formed by the rotation of the rotor blades formed with the diffuser, and the wind discharged from the air conditioner can be diffused in a wide direction with a wide directivity angle. A multi-blade diffuser fan assembly for ceiling cassette air conditioner attachment that further realizes the afterimage effect of the image of a natural tree leaf that changes its shape in the circumferential direction when rotating, such as the leaf of a tree. Characterized in that it.

  Further, the present invention provides a multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner capable of diffusing wind discharged from an air conditioner. The wide fan-shaped unit rotor blades constituting the diffusion fan and spread in one direction are: Further, when an airflow diffusion blade having an inclination angle that forms an additional air diffusion flow is formed as an auxiliary blade at the end of the unit rotor blade, and a larger centrifugal force is applied to the fluid At the same time, by combining the rotor blades of a certain area and having a larger turning radius, the range of the outer air direction that is blown in the direction other than the front direction is increased so that the airflow discharged from the air conditioner is widened, so that a wider space It is characterized by providing a multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner that can uniformly cool and heat the fan.

  According to the multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner according to the present invention, it is possible to supply a softer and richer wind than an existing air conditioner wind that is close to a natural wind, and a wide area by economical expansion of the air flow discharge range. By spreading and supplying appropriate and uniform wind over a wide area indoors, users in multiple directions can simultaneously and continuously hit the wind, maximizing air blowing efficiency and reducing energy consumption. Along with the air blowing function that spreads to a wide area around the ceiling air conditioner indoor unit as an airflow diffusion fan of the ceiling and prepares a comfortable indoor environment for the occupants, the leaves in the circumferential direction when rotating, like the leaves that are blown away in the wind The afterimage effect of the image of a natural tree leaf that changes its shape is further realized, and the natural decoration of a unique and visually beautiful tree leaf that changes the atmosphere of the interior space Band effect is given further exhibits the complex synergy shaping and functionality.

  In particular, the present invention does not decrease the exhaust efficiency even when the path of the air current spreads and deviates from the axis, and is simple and has a plurality of blades that are symmetrical and uniform, and are radially separated and arranged. It is not a diffusion fan as a rotating body, but a wide streamlined asymmetrical font shape that makes air flow smoother, and has a hydrodynamic shape in many directions so that the wind can be finely dispersed and sent In order for the unit rotor blades shaped like leaves to be spread out to generate a uniform diffused airflow in the circumferential direction, two or more units are joined together like a round frame with a certain angle apart from each other. The shape of the rotor blades is specially designed to diffuse the air in a radial direction. Shift to join By increasing the number due to the combination effect of the direction, the rotor blades operate as a large number (Array), and the discharge airflow of the air conditioner can be spread uniformly in a wide direction with a wide directivity angle. It is possible to prevent the occurrence of a temperature difference depending on the position in the room, thereby suppressing the discomfort felt by many users and providing a comfortable indoor environment.

  The multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner of the present invention simultaneously pushes a large number of rotor blades in one circumferential direction. By guiding, even under the same operating conditions as existing air conditioners, it prevents the wind or hot air from directly hitting the human body, and it does not interfere with the indoor temperature control function of the air conditioner. Due to the widespread effect, the blind spot area of the airflow discharged from the air conditioner is greatly reduced, the indoor air circulates, and the entire room is uniformly cooled and heated by the action of mixing the room air evenly. It is comfortable even if it doesn't hit directly, it is possible to reduce the power consumption of the air conditioner, it is formed with a predetermined standard assembly type that can be mass-produced, and it is assembled quickly and firmly in a simple way It is possible to disassemble and dismantle, and it is neatly finished so that the detachable blades and hub connecting parts connected to each other are not exposed to the outside, and it is semi-embedded when mounted on the intake grill of an air conditioner indoor unit Installation and removal operations are easy and convenient, and the construction time is shortened.

  In addition, the present invention is excellent in compatibility, and the blade body is manufactured so that only the damaged blade can be replaced without replacing the blade body when a portion of the blade is damaged. By reducing the economic waste of having to replace the entire volume, the rotating blades that are adjacent to each other are equipped with a proper and standardized balance, with rotation, rigidity and strong durability. Minimize vibration and noise by eliminating rotational balance mismatches associated with blade assembly and replacement.

It is a use condition figure which shows roughly the structure of the installation state of the whole apparatus as one Embodiment of this invention. It is an exploded perspective view of the whole device composition concerning one embodiment of the present invention. It is a front lineblock diagram concerning one embodiment of the present invention. It is an assembly drawing which shows the assembly relationship of this invention and an air-conditioner indoor unit suction grille. It is an illustration figure which shows the upper support tool of the suction grill of the air-conditioning indoor unit of this invention. It is a figure which shows roughly the hub structure of the multiblade diffusion fan assembly for air-conditioner attachment of this invention. It is a section lineblock diagram showing the hub composition of the assembly of the multiblade diffusion fan for air-conditioner attachment of the present invention. It is a figure which shows the connection structure of the hub of a multiblade diffusion fan assembly for air-conditioner attachment of this invention, and a blade support stand. It is a figure which shows the connection structure between the blade support bases of the multiblade diffusion fan assembly for air-conditioner attachment of this invention. It is a figure which shows the connection structure between the rotary blade which concerns on one Embodiment of this invention, and a blade support stand.

  The present invention for achieving the above-described object will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same components even if they are shown in other drawings. Are given the same reference numerals, and detailed descriptions of well-known components that can unnecessarily obscure the subject matter of the present invention are omitted.

The present invention is provided on the indoor ceiling, has a room air suction grille 420 in the center of the lid cover on the bottom surface of the main body, and has airflow outlets 430 on the front, rear, left and right sides thereof, The ceiling cassette air conditioner is installed in a blower structure that sucks indoor air at 420 and discharges the heat-exchanged air from the airflow outlets 430 in the four side surfaces, and cools or heats the air and discharges it to cool and heat the room. It is attached to the suction grill 420 provided in the indoor unit cover 410 in a semi-embedded manner, receives the discharge airflow discharged from the airflow discharge port 430 of the air conditioner indoor unit, is driven without power, and discharges air from the rotor blades. Multi-blade diffusion fan for ceiling cassette air conditioner that draws in the axial direction and generates a radially outward airflow, and diffuses and guides the discharged airflow to spread widely in the room A three-dimensional,
In the assembly, support bands 320 are fastened to fastening rings 330 in a direction perpendicular to each other around a disc-shaped grill support disc 310 provided with a number of screw holes H on the outer periphery and fastening rings 330 on the outer periphery of the four sides. And a bracket-shaped grill upper support 300 firmly fastened by a fastening screw S.

  In addition, the assembly is provided with a number of screw holes H on the outer periphery, and is attached to a lower portion of a suction grill 420 of an air conditioner indoor unit, and is vertically separated into a grill lower fixed disc 121 and a lower portion of the fixed disc 121. It is possible to have a rotary shaft 122 in which a fastening groove 123 is formed so as to be axially coupled to the shaft hole 111 of the hub main body 110, and a composite function that also serves as a lower support tool and a rotary shaft of the intake grill of the indoor unit cover. A hub shaft 120 having a shaft, a shaft hole 111 having a fixed depth so that the rotary shaft 122 is axially coupled to the center of the upper portion, and a curved pipe-shaped blade support base 210 on the outer peripheral surface of the hub body at equal intervals. A cylindrical hub main body 110 formed with a plurality of corresponding insertion holes 116 and a hub cap 130 for sealing and finishing the hub main body 110 are separately configured and included.

  Further, in the assembly, a rotating shaft 122 provided in the hub shaft 120 is rotatably inserted into the shaft hole 111 of the hub body 110, and the hub body 110 is closed by a hub cap 130, and the hub shaft 120, The hub body 110 and the hub cap 130 include the hub 100 that is sequentially coupled from the top to the bottom.

  In addition, the assembly has an asymmetric flat and long three-dimensional letter shape, and each unit rotor blade 220 in which a large number of leaves having a hydrodynamic shape is formed into blades finely disperses the wind. So that the curvilinear unit blade support 210 is fitted in the circumferential direction by the T-shaped coupler 230 in a state of being spaced apart from each other at a constant interval, so that the blade support formed in a spiral shape is formed. Each unit rotor blade is connected to the base assembly in the form of a round frame and includes an air flow diffusion fan 200 that discharges a cold with directionality.

  Through the intake grill 420 of the air conditioner indoor unit, the upper part of the grill upper support 300 is fastened to the upper part and the lower part of the grille support disk 121 of the hub shaft 120 is fastened so that the corresponding screw holes coincide with each other. The screws S and the fastening nuts N are attached tightly to each other and fixed to the suction grill 420 having a certain height.

  In addition, the blade support base 210 of the discharge air flow diffusion fan having directionality is inserted into a large number of insertion holes formed on the outer surface of the hub main body 110 whose rotation shaft is configured to be rotatable by the shaft hole 111 as described above. An air flow that is built in the hub main body 110 and is discharged so as to be downwardly or inclined by firmly fitting in a crimping manner between a plurality of elastic pieces 114 that are elastically operated by a spring 113 provided at one end of the operating rod 112. The multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner is formed with a configuration in which the airflow discharged from the air conditioner is diffused over a wide range.

  As a result, it is possible to supply wind that is close to the natural wind and softer and richer than existing air-conditioner wind, and due to the economical expansion of the airflow discharge range, appropriate and uniform wind over a wide area even in a high ceiling room over a wide area By diffusing and supplying to the user, the airflow efficiency is maximized by allowing users in multiple directions to hit the wind simultaneously and continuously, reducing energy consumption and rotating around like a leaf that is blown away in the wind. The afterimage effect of the image of a natural tree leaf that changes its leaf shape in the direction is further realized.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  As described above, the present invention is provided on the ceiling of a building room, and has four air flow outlets formed in the center of the front surface of the lid cover 410 so as to surround the four directions of one suction grill 420 and surround the periphery of the suction port. Attached to an ordinary ceiling cassette air conditioner indoor unit 400 provided with an outlet 430, the air is drawn downward in the axial direction to generate a radially outward airflow, and a larger centrifugal force against the airflow falling downward As a result, the rotor blades of a certain area are combined and have a larger turning radius, so that the range of the outer wall direction that blows air other than the front direction is increased, so that the airflow discharged from the air conditioner spreads widely in the room Thus, this is a new type of multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner that can cool and heat a wider space evenly.

  In the present invention, the multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner has a bracket-like suction grill upper support 300 coupled to the upper part of the suction grill 420 of the ceiling cassette air conditioner indoor unit 400, and a leaf-like shape at the end. The rotary blade 220 has a spiral blade support base 210, and the discharge airflow diffusion fan 200 is inserted through an insertion hole formed in a disk-shaped outer ring, and the suction grill upper support 300 and the suction grill 420 are interposed therebetween. The hub shaft 120, which also serves as a support and a rotating shaft at the lower portion of the intake grille, and the rotating shaft 122 and the shaft hole 111 of the hub shaft 120 are coupled to each other and are rotated by the discharge airflow in the four directions of the air conditioner indoor unit discharge port, respectively. The hub body 110 formed as described above and the hub 100 including the hub cap 130 are integrally assembled and formed. As described above, the present invention has a structure in which a multi-blade diffusion fan is attached to an air conditioner indoor unit suction grille that is directly attached to the ceiling cassette air conditioner indoor unit 400 without changing the structure and function of the ceiling cassette air conditioner indoor unit 400. The discharge airflow diffusion fan 200, which is formed with directivity so that the spiral blades of the tree-like leaf blades are sent out, collects the discharge air and induces diffusion into the room while reducing the frictional force with the intake air. Airflow discharge range is economically expanded by the combined synergistic effect of organic coupling that harmonizes the air blowing structure that enables it to spread appropriate and uniform wind over a wide area under the indoor air conditioner. By supplying, it is characterized in that users in multiple directions can simultaneously and continuously hit the wind.

  In the present invention, the bracket-shaped suction grill upper support 300 coupled to the upper portion of the suction grill 420 is supported by the suction grille, but has a number of screw holes H on the outer periphery and four outer periphery. The suction grille is formed by the male and female screwing of the fastening ring 330, the fastening screw S and the fastening nut N into four support bands 320 orthogonal to each other around the disc-shaped grille support disc 310 provided with the fastening ring 330. The upper and lower parts 420 are firmly fastened without a separate fastening member.

  The hub shaft 120 provided on the upper part of the hub 100 that rotatably supports the discharge air flow diffusion fan 200 has a support disk 310 supported on the upper part by being suspended from the suction grille 420, and a concave groove 123 formed on the lower part. The support disk 310 functions as a hub lower suction grille support, and the bar-shaped rotation shaft 122 functions as a hub shaft, respectively. A function as an upper head for accommodating the hub main body 110 by correspondingly coupling with the cap 130 is additionally realized.

  The present invention is a mounting structure for an air conditioner indoor unit of a discharge air flow diffusion fan 200 that is suspended and attached to the ceiling cassette air conditioner indoor unit 400 without changing the structure or function separately. When installed on the suction grill 420, it is a semi-embedded type that is attached to the upper and lower surfaces of the suction grill, making installation and removal easy and convenient, improving workability, and maintaining the mounting height appropriately regardless of the ceiling height. Is done.

  The hub body 110 is a disk shape having a constant diameter, width and height, and a shaft hole having a fixed depth with an upward hole so that a rod-shaped rotary shaft 122 is axially coupled to the upper center. 111 is provided on the outer peripheral surface of the main body with a plurality of insertion holes 116 for accommodating the curved pipe-shaped spiral unit blade support bases 210 at equal intervals. A plurality of actuating rods 112 having elastic springs 113 at one end are mounted symmetrically inside the hub body 110 so that a fixing force acts on the actuating rods so as to be actuated by the operation of the push button 140. A plurality of elastic pieces 114 that contract and relax with spring elastic force 112 are inserted into the shaft hole 111, and a plurality of elastic members 123 elastically operate with the groove 123 provided on the rotation shaft 122. The gap between the pieces 114 is firmly fitted in the crimping method.

  In addition, a plurality of insertion holes 116 formed in the circumferential direction at equal intervals on the outer peripheral surface of the hub main body 110 are fixed to a fixing groove 115 on a fixing ring 211 of a blade support base of a discharge air flow diffusion fan 200 that supports a rotating blade 220. A configuration in which the rotating shaft 122 can be rotated by the shaft hole 111 to support the discharge air flow diffusion fan 200 provided integrally with the hub body 110 and can be rotated at the same time. The hub shaft 120 and the hub cap 130 can be easily attached to and detached from the hub body 110 by the pressure applied by the push button 140, so that the hub shaft 120 and the hub cap 130 are easily attached and detached.

  As a main part of the present invention, the discharge airflow diffusion fan 200 that is axially coupled to the hub 100 and rotates is configured such that a large number of unit blade support bases are dispersedly coupled at equal circumferential intervals in the circumferential direction as support columns for supporting the rotary blades 220. In the discharge air flow diffusion fan assembly formed by connecting the rotor blade 220 to the spiral blade support base 210, the rotor blade 220 has an asymmetric flat and long three-dimensional spider shape, and is hydrodynamic. Unit blade support bases in a state of being spaced apart from each other so that each unit rotor blade formed into a blade by combining a large number of leaves, petals and wings with various shapes can be distributed finely When 210 is fitted and connected in the circumferential direction using the T-shaped connector 230, the direction of action of the rotational force generated by the discharged airflow is formed in a unidirectional spiral shape with directionality.

  And, combining the leaves, petals, and wings of the tree to form a blade means organically combining the structural and physical properties of the leaves and petals of the natural tree, and the air that the air blowing blade should have. It is a term of concept that can satisfy the required characteristics of flow and distribution applications, and it is naturally friendly and hydrodynamic by the organic combination of the structure and physical properties of leaves and petals in the natural state By providing a multi-blade discharge airflow diffusion fan with a shape, the discharge air of the air conditioner indoor unit can be continuously diffused and sent out at a predetermined air blowing angle, and cooling and heating efficiency without additional energy input To achieve a combined synergistic effect of improving

  Here, the spiral blade support base 210 has a support force acting in all directions, and the portions where both ends overlap each other between the adjacent curved rotary blade support bases like nodes are successively formed. By using a socket-type T-connector 230 in the circumferential direction from the support base to the last blade support base, it is formed in a predetermined standard assembly type that can be mass-produced. As a result, assembly and disassembly can be performed quickly and firmly, and the detachable blades and the hub connecting portion connected to each other are finished beautifully so as not to be exposed to the outside.

  As is well known, leaves have the property of always trying to rotate in the same direction, and the discharge air flow diffusion fan 200 of the present invention divides the air into the blade support base 210 that supports the rotor blades 220 and discharge air. The rotor blade 220 is also provided on the blade support 210 so as to be able to guide a plurality of rotor blades at the same time and guide them in a discharge direction of the discharge air. It is not a diffusion fan as a simple rotating body having a plurality of blades that are symmetrical and uniform, and radially separated and arranged, but the direction of rotation of the blade in the direction of rotation with a spiral directionality in which the rotation direction is biased to one side. By forming the shape of leaves, petals, and wings so that the front is directed, the airflow discharged from the air conditioner indoor unit outlet 430 is asymmetric flat and long leaves of leaves, petals, and wings It is received by the roller blades 220 and diffused and guided in a directional manner like a spiral, so that the air conditioner diffuses and supplies a wide range of appropriate and uniform wind over a wide area of the room attached to the ceiling in multiple directions. It is possible to maximize the air blowing efficiency and reduce the energy consumption by allowing the user to hit the wind at the same time and continuously, and it is spread over a wide area around the ceiling air conditioner indoor unit as an original air flow diffusion fan Along with the air blowing function that creates a comfortable indoor environment for the user, the afterimage effect of the image of the leaves of a natural tree that changes the shape of the leaves, petals, and wings in the circumferential direction when rotating like the leaves of a tree blown while blowing in the wind is further realized As a result, it comes to realize the effect of the natural decoration of leaves, petals and wings, which are unusual and visually beautiful, changing the atmosphere of the indoor space.

  As described above, leaves, petals, and wing-like rotor blades are formed on the upper surface with a larger surface area than the smooth lower surface by the Bernoulli principle, and the upper surface is flat and thin, and the vein structure Although the asymmetrical and many irregular, the veins that are formed with directionality and support the shape widen the surface area of the leaves, petals and wings to increase the exhaust area, and the weight is light, so the wind The blades, petals, and wing-like blades rotate while colliding with each other several times, reducing the load imposed by the centrifugal force generated while rotating, and the thin air flows smoothly on the blade surface The wind receiving surface also increases, and a large amount of air flow can be transmitted to the far side with the same surface area, and the number of blades installed is large, and the spiral curved whirling shape is twisted with directionality. Is a combination of a pair of seesaw-shaped blades with an "S" curve configured so that two oppositely symmetric rotor blades are combined and face each other, thereby impairing rotational force even in weak winds Since the wind pressure carried without being received and soft and quiet air blowing in multiple directions are possible, the air blowing efficiency is improved.

  In the present invention, the rotary wing is drawn only in a shape in which plane leaves, petals, and wings are combined together, but the curve of the blade bends down like a glider and rises in only one side. The flow of air can be made smoother by forming it into a three-dimensional shape, or by using the shape of leaves, petals, wings, etc. that can be twisted horizontally within a certain angle range to exchange wind. It is preferable to configure.

  Further, in the present invention, the leaf-shaped rotor blades are not limited to the shape illustrated in the drawings, and can be formed in various ways, and the number of rotor blades to be mounted is one or more, two, four, six, eight. , 12 pieces can be produced freely.

  In the present invention, the wing support base and the rotor blades have a structure and morphological stability at the same time as a material having appropriate rigidity and light weight so as to reduce a load burden due to centrifugal force generated while rotating. It is preferable to prevent noise and vibration by being formed of a PET (polyethyleneterephthalate) material having a support disc of an upper grille supporter and a hub disc fixed disc and an intake grille which are in contact with a metal suction grille. It is preferable that a buffer member made of a silicon material for preventing vibration and noise is attached between the two.

  In addition, the present invention can realize a visual afterimage effect that occurs when a rotary motion is performed while drawing a circular locus by forming a discharge airflow diffusion fan with a leaf-like rotor blade, A flashing LED can be attached to function as an image display.

  The drawings shown for the description of the present invention are one embodiment in which the present invention is embodied, and as shown in the drawings, various forms for realizing the gist of the present invention are shown. It can be seen that combinations are possible.

  The present invention described above can be variously replaced and changed by those who have ordinary knowledge in the technical field to which the present invention belongs without departing from the technical idea of the present invention. It is not limited to.

100 Hub 110 Hub body 111 Shaft hole 112 Acting rod 113 Elastic spring 114 Elastic piece 115 Fixing groove 116 Insertion hole 120 Hub shaft 121 Grill lower fixing plate 122 Rotating shaft 130 Hub cap 131 Cap press button 140 Press button 200 Discharge airflow diffusion fan 210 Blade support base 211 Fixing ring 220 Rotor blade 230 T-shaped connector 300 Grill upper support tool 310 Support disk 320 Support band 330 Fastening ring 400 Ceiling cassette air conditioner indoor unit 410 Cover cover 420 Suction grill 430 Airflow outlet N Fastening nut S Fastening Screw H Screw hole

Claims (3)

An indoor air intake grille 420 is provided at the center of the lid cover on the bottom of the main body, and an air flow outlet 430 is provided on the front, rear, left and right sides of the main body, and an air intake vent 420 is provided at the center of the indoor unit. The ceiling cassette air conditioner cover 410 is attached to a blower structure that discharges heat-exchanged air from the airflow outlets 430 in the four directions on the side surface, and sucks and cools or heats the air to cool and heat the room. It is attached to the provided suction grill 420 in a semi-embedded manner, receives the discharge airflow discharged from the airflow discharge port 430 of the air conditioner indoor unit, is driven without power, and draws the discharge air in the axial direction of the rotor blades in a radial manner This is a multi-blade diffusion fan assembly for ceiling cassette air conditioner attachment that generates an outward air flow and diffuses and guides the discharged air flow widely in the room. ,
In the assembly, support bands 320 are fastened to fastening rings 330 in a direction perpendicular to each other around a disc-shaped grill support disc 310 provided with a number of screw holes H on the outer periphery and fastening rings 330 on the outer periphery of the four sides. And a bracket-shaped grill upper support 300 firmly fastened by a fastening screw S;
A large number of screw holes H are provided on the outer periphery, and can be separated into a lower part of the lower grille fixed disk 121 and the lower fixed disk 121 attached to the lower part of the air conditioner indoor unit suction grille. The hub shaft 120 is composed of a rotary shaft 122 having a fastening groove 123 formed so as to be coupled to the shaft, and has a combined function that also serves as a lower support tool and a rotary shaft of the suction grill of the indoor unit cover. A shaft hole 111 having a fixed depth so that 122 is axially coupled, and a plurality of insertion holes 116 for accommodating curved pipe-shaped blade support bases 210 at equal intervals on the outer peripheral surface of the main body. Each of the formed cylindrical hub body 110 and a hub cap 130 for sealing and finishing the hub body 110 are separately configured. The hub hole 110 of the hub body 110 is provided in the hub shaft 120. Was rotary shaft 122 is rotatably inserted into the hub body 110 is closed by the hub cap 130, the hub shaft 120, the hub body 110, a hub 100 hub cap 130 are respectively sequentially coupled from top to bottom,
Asymmetric flat and long three-dimensional spider character shape, each unit rotor blade 220 having a hydrodynamic shape formed into a blade of a plurality of leaves is spaced from each other so that the wind can be finely dispersed and sent When the unit blade support 210 having a curved shape is connected in a circumferential manner by a T-connector 230 in a separated state, the unit rotation is performed on each of the blade support table assemblies formed in a spiral shape. The wings are connected and assembled like a round frame, and are composed of an airflow diffusion fan 200 that discharges with directionality,
Through the intake grill 420 of the air conditioner indoor unit, the upper part of the grill upper support 300 is fastened to the upper part and the lower part of the grille support disk 121 of the hub shaft 120 is fastened so that the corresponding screw holes coincide with each other. A multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner, wherein the multi-blade diffusion fan assembly is attached to a suction grill 420 having a fixed height by being closely attached to each other using a screw S and a fastening nut N.   In the discharge airflow diffusion fan 200, the blade support base 210 is a spiral blade support base, and the rotary blade 220 is flat and thin on the upper surface, and the leaf vein structure is asymmetrical in the left-right direction. The multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner according to claim 1, wherein the multi-blade diffusion fan assembly is attached to the ceiling cassette air conditioner.   2. The multi-blade diffusion fan assembly for attaching a ceiling cassette air conditioner according to claim 1, wherein the blade support bases 210 are fitted and connected to each other in the circumferential direction using the T-shaped connector 230.