WO2020075928A1 - 선풍기용 팬 유닛 및 이를 구비하는 선풍기 조립체 - Google Patents

선풍기용 팬 유닛 및 이를 구비하는 선풍기 조립체 Download PDF

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Publication number
WO2020075928A1
WO2020075928A1 PCT/KR2019/002499 KR2019002499W WO2020075928A1 WO 2020075928 A1 WO2020075928 A1 WO 2020075928A1 KR 2019002499 W KR2019002499 W KR 2019002499W WO 2020075928 A1 WO2020075928 A1 WO 2020075928A1
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WO
WIPO (PCT)
Prior art keywords
fan
air inlet
fastener
fan unit
motor
Prior art date
Application number
PCT/KR2019/002499
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English (en)
French (fr)
Korean (ko)
Inventor
최귀석
Original Assignee
주식회사 다르텍
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Filing date
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=70164962&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2020075928(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 주식회사 다르텍 filed Critical 주식회사 다르텍
Priority to JP2021518160A priority Critical patent/JP7149664B2/ja
Priority to CN201980000837.7A priority patent/CN111315996B/zh
Publication of WO2020075928A1 publication Critical patent/WO2020075928A1/ko

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps

Definitions

  • the present invention relates to a fan unit that is mounted on a fan motor and rotates, and more particularly, to a fan unit for a fan and a fan assembly provided with the fan unit that can be used to convert a fan commonly used in everyday life into an air cleaner.
  • Fan is a device that provides coolness by generating wind, and is used extensively because of its low cost and good efficiency. These fans are mainly used around the summer season when the temperature is high, but there is no use in the season when the temperature goes down, so they have the characteristics of seasonal household appliances stored in a separate place.
  • the fan commonly used in most homes can be converted to an air cleaner, it can solve both the seasonality of the fan use and the cost problems of the conventional air cleaner at the same time.
  • the effect can be significant.
  • a fan having a conventional air cleaning function in order to provide an air cleaning function to a general fan, a fan having a filter in the form of a charged film attached to the rear part of the rotary blade, that is, a protective net, is disclosed, and In the case of No. 10-2004-0093359, a fan is provided in which an adsorption type deodorizing filter such as zeolite is detachably attached to a protective net.
  • the structure of the fan unit that is, the wing
  • a change may occur in the air flow direction.
  • the cooling rate of the motor may be changed, and the motor may overheat. .
  • the motor head containing the motor is overheated to 60 ° C or higher due to overheating of the motor, motor damage, fuse blown or thermal deformation may occur, or even a fire may occur. Therefore, when a fan unit having a different structure is applied instead of a fan that is pre-installed in a fan, the motor overheating problem corresponds to a very important consideration in designing a fan unit for a fan.
  • the present invention is to solve the above problems, the object of the present invention is to provide a fan unit for a fan and a fan assembly having the same, which can convert a conventional fan into an air cleaner by simply replacing the fan blade. will be.
  • Another object of the present invention is to perform the air cleaning function while being able to satisfy that the rising temperature of the motor head is maintained at less than 60 ° C, even if the fan unit of the present invention is used instead of removing the blade provided in a conventional electric fan. It is to provide a fan unit for a fan and a fan assembly having the same.
  • a fan unit for a fan according to the present invention for achieving the above object is a fan unit mounted on a fan, the lower disk having a first air inlet formed therethrough; An upper disc through which a second air inlet is formed; A dust collecting filter disposed between the lower disk and the upper disk along a circumferential direction of the lower disk or the upper disk; And a fastener connecting the lower disk or the upper disk to the motor of the fan.
  • the first air inlet and the second air inlet is characterized in that it is configured to satisfy the following conditional expression 1.
  • K1 the total area of the first air inlet
  • K2 the total area of the second air inlet
  • Conditional Expression 1 assuming that the fan unit is mounted on the fan, the first air inlet is the second air Based on the case where it is located closer to the motor than the inlet
  • the fan unit for a fan of the present invention is characterized in that the lower disk is mounted on the fan so that it is located closer to the fan motor than the upper disk.
  • the upper disk is arranged at a predetermined height from the lower disk in a state in which the lower disk is aligned with the center of the lower disk, and the dust collecting filter has a first radius from the center on the opposite sides of the upper disk and the lower disk. It is characterized in that it is installed along the circumferential direction of the upper disk or the lower disk in the region between the second radii.
  • the fan unit for a fan of the present invention has an insertion hole formed in a fastener, and the fastener is configured such that the insertion hole is located on the center of the lower disk or the upper disk, and the insertion hole has a drive shaft of the motor of the fan. It is configured to be inserted.
  • one side of the fastener of the present invention is characterized in that it includes a pair of grooves formed around the insertion hole and another pair of grooves.
  • the fan unit for a fan by simply mounting the fan unit to a fan commonly used in everyday life, the fan can be converted into an air cleaner, and the fan, which was a seasonal household appliance, can be used as a household appliance for all seasons.
  • the air purifying function of a normal air purifier at a relatively low cost without purchasing or having a separate air purifier.
  • the fan unit for a fan according to the present invention even when mounted and used in a fan of various types and materials, the motor head temperature is not overheated by 60 ° C or more, which occurs when the structure of a conventional fan fan (for example, a wing) is deformed. There is an effect that can prevent problems such as overheating of the motor and damage to the motor, blown fuses or thermal deformation.
  • FIG. 1 is a perspective view of a lower disk of a fan unit for a fan according to the present invention.
  • Figure 2 is a perspective view of the upper disk of the fan unit for a fan according to the present invention.
  • Figure 3 is a rear side perspective view of a fan unit for a fan according to the present invention.
  • Figure 4 is a front side perspective view of a fan unit for a fan according to the present invention.
  • Figure 6 is a side view showing the motor and drive shaft of the fan according to the present invention.
  • FIG. 7 is an upper side view showing a first fastener according to the present invention, an insertion hole formed therein, and first, second and third recesses.
  • Figure 8a is a cross-sectional view of a first fastener for explaining the features of the first recess according to the invention.
  • Figure 8b is a cross-sectional view of the first fastener for explaining the characteristics of the second recess according to the present invention.
  • Figure 8c is a cross-sectional view of the first fastener for explaining the characteristics of the third recess according to the present invention.
  • FIG. 9 is a perspective view of a fan unit for a fan further comprising a plurality of blades as another embodiment of the present invention.
  • FIG. 10 is an exploded perspective view of a fan assembly having a fan unit according to the present invention.
  • FIG. 11 is a top cross-sectional view of a fan assembly having a fan unit according to the present invention.
  • Fan motor 2 Drive shaft of the fan motor
  • to on or to the top means to be located above or below the target portion, which does not necessarily mean to be located above the gravity direction. That is, the term "on or above” referred to in the present specification includes not only the case where the object part is located above or below, but also when it is located before or after the object part.
  • one component when one component is referred to as “connected” or “connected” with another component, the one component may be directly connected to the other component, or may be directly connected, but in particular, It should be understood that, as long as there is no objection to the contrary, it may or may be connected via another component in the middle.
  • FIG. 1 is a perspective view of a lower disk of a fan unit for a fan according to the present invention
  • FIG. 2 is a perspective view of an upper disk of a fan unit for a fan according to the present invention
  • the fan for a fan according to the present invention includes a lower disk 10, a dust collecting filter 20, an upper disk 60, a fastener 40, and a support 50, Preferably, a plurality of blades may be further included.
  • the lower disk 10 of the present invention is a base plate for supporting the dust collecting filter 20, and is disposed in a structure facing the upper disk 60 with the dust collecting filter 20 interposed therebetween.
  • the lower disk 10 is connected to the motor 1 of the electric fan and is configured to receive rotational power from the motor 1 and rotate to rotate around its center.
  • the lower disk 10 has an air inlet (hereinafter, referred to as 'first air inlet 13'), so that when the lower disk 10 rotates, external air is fanned through the first air inlet 13.
  • the air flowing into the unit and the air flowing into the fan unit is moved toward the dust collecting filter 20 by an air pressure difference.
  • the shape of the first air inlet 13 is not particularly limited, and may be formed in various shapes such as a circular shape, an arc shape, and a polygonal shape.
  • the lower disk 10 may be composed of an annular plate body in which the first air inlet 13 is formed at the center, and the material may be made of a plastic material.
  • the lower disk 10 may be formed in a disk shape, and may be configured in a form in which a first air inlet 13 is formed through the disk.
  • the first air inlet 13 may be formed in various shapes such as a circle, an arc shape, and a polygon.
  • the upper disk 60 of the present invention is another base plate that supports the dust collecting filter 20 together with the lower disk 10, and is disposed on the dust collecting filter 20, and the bottom of the dust collecting filter 20 is interposed therebetween. It is provided in a structure facing the disk 10.
  • the upper disk 60 may be attached and fixed on the dust collecting filter 20 through an adhesive or the like, or may be connected to the motor 1 of the fan through a fastener 70 formed in the upper disk 60.
  • the upper disk 60 is connected to the fastener 40 provided at the center of the lower disk 10 through a fastener 70 provided at the center thereof, and simultaneously coupled to the drive shaft of the motor. It was configured to be.
  • the upper disk 60 may be formed through an air inlet (hereinafter, referred to as 'second air inlet 63') as in the lower disk 10, in which case the second air is rotated when the upper disk 60 is rotated.
  • the air introduced through the inlet port 63 moves to the dust collecting filter 20 side by the air pressure difference.
  • the shape of the second air inlet 63 is not particularly limited, and may be formed in various shapes such as a circular shape, an arc shape, and a polygonal shape.
  • the air inlet 13 must be formed on the lower disk 10, but the upper disk 60 may be formed even if the air inlet 63 is not formed. If the air inlet 63 is formed, It must be designed to satisfy certain conditions.
  • the upper disk 60 may be configured in a disc-shaped shape made of plastic, and may be formed in a shape in which a second air inlet 63 is formed through the disc.
  • the second air inlet 63 may be formed in various shapes such as a circle, an arc shape, and a polygon.
  • the fan unit for a fan according to the present invention is mounted to a fan and is configured to perform an air cleaning function.
  • the fan is mounted in the air as described above. In performing the clean function, it is possible to implement an optimal fan unit for the fan.
  • a conventional fan assembly has a fan protection net 5 in which an air passage hole is formed and a fan unit is accommodated therein, and a motor 1 that is connected to the drive shaft 2 and causes axial rotation of the drive shaft 2. , And a blade (not shown) that is coupled to the drive shaft 2 of the motor 1 and rotates to generate wind (see FIG. 6).
  • the fan unit of the present invention is used by replacing the blade among the components of the fan assembly, a change in the airflow direction designed based on the blade may occur.
  • the cooling rate of the motor 1 may be changed, and the motor 1 may overheat. In this case, it is directly connected to a safety accident such as a fire or damage to the fan, which is a fan unit for the fan. This is a very important consideration in designing.
  • the inventors of the present invention can solve the problems caused by motor overheating as described above when the first and second air inlets 13 and 63 formed on the upper and lower disks 10 and 60 are formed according to the following conditional expression 1. Was found.
  • K1 total area of the first air inlet
  • K2 total area of the second air inlet
  • the lower disk 10 is mounted on the fan in a structure that is located closer to the motor 1 of the fan than the upper disk 60.
  • the outer surface of the upper disk 60 faces the front of the fan
  • the outer surface of the lower disk 10 faces the rear of the fan.
  • conditional expression 1 also assumes a state in which the fan unit of the present invention is mounted on the fan, the first air inlet 13 of the lower disk 10 is a fan than the second air inlet 63 of the upper disk 60 It is based on when it is located closer to the motor 1.
  • the second air inlet 63 is formed to have a total area of 85% or less compared to the total area of the first air inlet 13, or the total area is '0'.
  • the total area of the first air inlet 13 is a hole formed through the lower disk 10 so that external air in the lower disk 10 can pass through the lower disk 10 and flow into the fan unit. It refers to the area that is the sum of the areas of all openings.
  • the total area of the second air inlet 63 is a hole formed through the upper disk 60 so that external air in the upper disk 60 can pass through the upper disk 60 and flow into the fan unit. It refers to the area that sums all the opening area of.
  • the second air inlet 63 is formed to have a total area of '0', which means that the second disk inlet 63 is not formed at all. That is, the upper disk 60 is composed of a complete plate body in which no opening in the form of a hole is formed, meaning that external air is not introduced through the upper disk 60.
  • conditional expression 1 in designing the first and second air inlets 13 and 63 it is possible to implement the air cleaning function according to the rotation of the fan unit, and at the same time, it is possible to determine the direction of the air flow which is advantageous for cooling the motor. There will be.
  • the airflow flowing in the motor-side direction is sufficiently formed to realize a cooling action above a threshold necessary to prevent overheating of the motor, so even if the fan unit of the present invention is used instead of removing the fan of the fan It is possible to prevent a fire or motor damage caused by overheating of the motor and to convert the fan to an air cleaner.
  • Conditional Expression 1 is test data for a change in the motor temperature compared to the ratio of the total area of the first and second air inlets of the fan unit according to the present invention. The technical significance of Conditional Expression 1 will be described with reference to FIG. 5.
  • a typical household electric fan should be able to prevent overheating of a temperature of a head (hereinafter referred to as a 'motor head') including a fan motor at 60 to 70 ° C or more during its operation.
  • a 'motor head' a temperature of a head
  • the term 'thermal deformation' due to overheating for a long time uses a synthetic resin when manufacturing a head accommodating a fan motor.
  • the synthetic resin is exposed to a temperature higher than a heat resistant temperature, thermal deformation may be caused, which may lead to product damage.
  • a lot of synthetic resins such as PVC or ABS are used in the manufacture of a fan, and the heat resistance temperature of PVC is about 65 ° C and the heat resistance temperature of ABS is about 75 ° C.
  • the fan is designed so that the motor head is not overheated by more than 60 to 70 ° C (hereinafter referred to as 'limit temperature') through cooling of the motor head using airflow. Should be able to satisfy the same even if the fan unit of the present invention is mounted and driven.
  • the fan unit of the present invention is installed and used in a fan of various types and materials, and even when used in a fan made of a material having the lowest heat resistance temperature (for example, PVC), it should not cause thermal deformation. Therefore, the fan unit of the present invention should not overheat the motor head temperature above the limit temperature of 60 to 70 ° C., even if used in any type of fan, which is the first and second air inlets (13, 63) It can be achieved through design.
  • PVC heat resistance temperature
  • the fan fan of the present invention is mounted instead of the fan unit.
  • the motor head temperature rises to about 45 ° C.
  • the rising temperature of the motor head is lowered in the order of “mifeng (about 45 °C) ⁇ weak wind (about 42 °C) ⁇ strong wind (about 38 °C)”. That is, it can be seen that a conventional electric fan satisfies a limit temperature of 60 to 70 ° C.
  • the wing is removed and the fan unit of the present invention is mounted, but the second air inlet 63 is designed to have 95% of total area (K2) compared to the total area (K1) of the first air inlet (13).
  • the wing is removed and the fan unit of the present invention is mounted, but the second air inlet 63 is designed to have a total area (K2) of 85% compared to the total area (K1) of the first air inlet (13).
  • the motor head temperature rise limit temperature 60 ⁇ 70 °C satisfies the It can be seen that the fan unit of the present invention can be driven.
  • the wing is removed and the fan unit of the present invention is mounted, but the second air inlet 63 is designed to have a total area (K2) of 70% compared to the total area (K1) of the first air inlet (13).
  • the motor head temperature rise limit temperature 60 ⁇ 70 °C satisfies the It can be seen that the fan unit of the present invention can be driven, and further, the rise temperature of the motor head can be lowered by about 6 ° C. than the test example (2).
  • the wing is removed and the fan unit of the present invention is mounted, but the second air inlet 63 is designed to have a total area (K2) of 58% compared to the total area (K1) of the first air inlet (13).
  • the second air inlet 63 when the second air inlet 63 is formed to have a total area (K2) of 58% compared to the total area (K1) of the first air inlet (13), it satisfies the motor head temperature rise limit temperature of less than 60 ⁇ 70 °C, It can be seen that the fan unit of the present invention can be driven, and further, the rise temperature of the motor head can be lower than that of Test Examples (2) and (3).
  • the wing is removed and the fan unit of the present invention is mounted, but the second air inlet 63 is designed to have a total area (K2) of 5% compared to the total area (K1) of the first air inlet (13).
  • the motor head rising temperature greatly increases its limit temperature of 60 to 70 ° C. It can be seen that the base can be maintained at a level, and it can be seen that the rise temperature of the motor head can be lower than that of Test Examples (2), (3), and (4).
  • the air cleaning function can be performed while satisfying the motor head limit temperature (60 to 70 ° C) required for the fan. 2 It can be seen that, as the total area K2 of the air intake 63 is smaller than the total area K1 of the first air intake 13, the motor head rising temperature is lower. On the other hand, even when the total area of the second air inlet 63 is '0' (that is, when the second air inlet 63 is not formed in the lower disk 60), the motor head rising temperature is 60 to 60 ° C. It was found to be well below 70 ° C.
  • the air intake amount per unit time ie, the amount of external air flowing into the fan unit
  • the total area (K2) of the second air inlet (63) is preferably designed to simultaneously consider the rise temperature of the motor head and the amount of air intake per unit time. That is, it is desirable to design the fan unit so that it can satisfy that the motor head rising temperature is maintained below the limit temperature when the fan unit is driven to rotate, while at the same time increasing air cleaning performance as much as possible.
  • the total area (K2) of the second air inlet (63) should be less than 85% compared to the total area (K1) of the first air inlet (13), preferably 70% or less It is preferably formed of, more preferably 50% or less.
  • the dust collecting filter 20 of the present invention is a filter for filtering harmful microparticles in the air flowing through the first and second air inlets 13 and 63, and is composed of a circular or polygonal band shape as a whole, and the lower disk 10 ) And the upper disk 60 are disposed along the circumferential direction of the lower disk 10 or (and) the upper disk 60.
  • the dust collecting filter 20 has a lower disk 10 and an upper disk 60 arranged to be spaced upward by a predetermined height from the lower disk 10 in a state in which the lower disk 10 is centered. On the opposite surface of each other, it is installed along the circumferential direction of the upper disk 10 or the lower disk 60 in the region between the first and second radius from the center of the lower disk 10.
  • the dust collecting filter 20 may use a filter in which a number of fine pores are formed, and may be formed of various materials such as nonwoven fabric, cloth, metal mesh, sponge, ceramic, and preferably HEPA filter to nonwoven fabric filter It may be composed of a filter made of an irregularly arranged fiber structure.
  • the dust collecting filter 20 may be formed in a structure in which both surfaces are repeatedly bent in a zigzag manner on the inner surface (the surface opposite to the upper disk) of the lower disk 10 as in the embodiments of FIGS. 3 and 4. have.
  • the dust collecting filter 20 forms a wave shape in which irregularities are repeated along the circular circumference of the lower disk 10.
  • the fastener 40 of the present invention is a configuration for interlocking the rotational drive of the fan motor 1 to the fan unit of the present invention, so that the lower disk 10 or the upper disk 60 can be connected to the motor of the fan. It is composed.
  • the fastener 40 may be connected and fixed to the lower disk 10 through the support 50.
  • the fastener 40 is composed of a cylindrical shape is located in the center of the lower disk 10, that is, the center of the circular air passage hole, the insertion hole 41 formed in the fastener 40, the lower disk 10 It is configured to be located on the central axis of.
  • the 'center axis' of the lower disk 10 may be a rotation axis of the lower disk.
  • the fastener 40 may be connected and fixed to the upper disk 60 through the support 53.
  • the upper disk 60 is composed of a circular or annular plate body
  • the fastener 40 is located in the center of the circular or annular plate body
  • the insertion hole 41 of the fastener 40, the upper disc 60 and the central axis of the lower disk 10 are all on the same line.
  • the fastener (hereinafter referred to as 'first fastener 40') coupled to the fan motor is connected to the lower disk 10 through a plurality of supports 50 It is configured to be fixed to the center of the lower disk (10).
  • another fastener hereinafter referred to as 'second fastener 70'
  • 'second fastener 70' which is connected to and fixed to the upper disk 60 through a plurality of supports 53, is formed at the center of the upper disk 60, thereby The upper disc 60 was configured to be coupled to the lower disc 10 through the fastener 70.
  • the first fastener 40 of the present invention is an insertion hole 41 formed in the center so that the drive shaft of the motor 1 can be inserted through, and the insertion hole on one surface of the first fastener 40 41) includes a pair of first grooves 45 formed around the center, preferably may further include a second groove (46).
  • the insertion hole 41 of the first fastener 40 is a configuration that is substantially coupled to the drive shaft of the fan motor 1, penetrating through the first fastener 40 along the height direction of the first fastener 40 It consists of a hollow structure that is formed.
  • the height direction of the first fastener 40 refers to the long axis direction of the drive shaft based on the state in which the first fastener 40 is coupled to the drive shaft of the motor 1.
  • the insertion hole 41 is formed on the central axis of the first fastener 40, the central axis of the lower disk 10, the central axis of the first fastener 40 and the insertion hole 41 ) May be configured such that all the central axes are located on the same line.
  • the insertion hole 41 is configured to have a long axis length of less than 80 mm and a diameter of more than 2 mm, and the reason for this is as follows.
  • the definition of the "long axis length L1 of the motor drive shaft 2" referred to in the present invention is as follows.
  • FIG. 6 is a side view showing a motor and a drive shaft of a fan according to the present invention.
  • the conventional fan motor 1 is provided with a drive shaft 2 protruding toward the front of the motor 1 and coupled with a conventional fan fan, and a pair of latches 3 are symmetrical at the rear end of the drive shaft 2 It is formed in a structure, and the threaded portion 4 is formed at the front end. And this screw part 4 is fastened cap (6, shown in FIG. 10) is screwed to the conventional fan fan is configured to be fixed to the drive shaft (2).
  • Long axis length (L1) of the motor drive shaft 2" of the present invention is from the clamp (3) of the entire length of the drive shaft (2) to the tip of the threaded portion (4, that is, one end of the drive shaft (2)) It refers to the length.
  • the upper disk 60 and the lower disk 10 of the present invention are connected to the fan motor 1 through the first fastener 40 to receive the rotational force of the motor 1, and the first fastener 40 is It is configured to be connected to the drive shaft 2 of the motor 1 through the insertion hole 41.
  • the long shaft length L1 of the motor drive shaft 2 is manufactured to be in the range of 30 to 80 mm.
  • the threaded portion 4 of the drive shaft 2 passes through the insertion hole 41 to remove the 1 It is necessary to protrude outside the tip of the fastener 40 so that the tightening cap 6 can be fastened to the threaded portion 4.
  • the insertion hole 41 of the first fastener 40 should be formed to have a long shaft length of less than 80 mm, to allow this insertion hole.
  • the threaded portion 4 can protrude to the outside of the insertion hole 41 (that is, outside the fastener 40).
  • the outer diameter of the motor drive shaft 2 is manufactured to be in the range of 2 to 10 mm. Therefore, when considering the drive shaft 2 (2 mm) having the smallest outer diameter, the first fastener 40 must have an inner diameter whose insertion hole 41 exceeds a minimum of 2 mm to drive shaft 2 of the fan motor 1 ) Can be inserted into the insertion hole 41.
  • the first recess 45 is an engaging hole formed in a mutually symmetrical structure around the insertion hole 41 on one surface of the first fastener 40, the insertion hole 41 of the first fastener 40 When the drive shaft 2 of the fan motor 1 is inserted into, a pair of clamps 3 protruding from the rear end of the drive shaft 2 are inserted into the first recess 45.
  • the rotational force of the drive shaft 2 can be transmitted to the first fastener 40 by the coupling between the first recess 45 and the catch 3, so that the motor 1 is driven when the fan is turned on.
  • the first fastener 40 In conjunction with the first fastener 40 is axially rotated, thereby causing rotational motion of the upper disk 60 and the lower disk 10, thereby performing the fan and air purification functions of the fan unit of the present invention. There will be.
  • the fan unit of the present invention may further include a second recess 46 in addition to the first recess 45.
  • FIGS. 8 (a), (b), and (c) are made according to the present invention. It is a cross-sectional view of a fastener for explaining features of the 1,2 and 3 recesses.
  • the second recess 46 is a catch coupling groove formed in a mutually symmetrical structure around the insertion hole 41 on one surface of the first fastener 40, the function of which is 1 Same as the recess 45.
  • the first recess 45 and the second recess 46 are characterized in that the depths P1 and P2 of the recess are different from each other.
  • the bottom surface B2 of the second recess 46 and the bottom surface B1 of the first recess 45 are configured to be located at different heights based on one end C1 of the insertion hole 41. do.
  • the bottom surface B1 of the first recess 45 is located at a height of 'H1' from the lower end C1 of the insertion hole 41
  • the bottom surface B2 of the second recess 46 Is configured to be positioned at the 'H2' height from the lower end (C1) of the insertion hole (41).
  • the bottom surface B2 of the second recess 46 is located closer to the lower end C1 of the first fastener 40 than the bottom surface B1 of the first recess 45. That is, the deeper the groove portion of the present invention, the deeper the bottom of the groove portion is located closer to the lower end C1 of the first fastener 40.
  • the depth P2 of the second recess 46 is formed deeper than the depth P1 of the first recess 45, and the bottom surface B2 of the second recess 46 ) Is located closer to the lower end C1 of the first fastener 40 than the bottom B1 of the first recess 45.
  • the fan unit of the present invention may further include a third recess 47, a fourth recess, ..., an N recess.
  • the third recess 47 is a locking groove formed in a mutually symmetrical structure around the insertion hole 41 on one surface of the first fastener 40, the function of which is the first recess 45 Is the same as
  • the first, second, third and Nth recesses are formed to have different depths of the recesses.
  • the depths P1, P2, and P3 of the grooves are deeper in the order of the first groove portion 45, the second groove portion 46, and the third groove portion 47 in order.
  • the heights (H1, H2, H3) of (B1, B2, B3) were configured to be lower.
  • the bottom surface B2 of the second recessed portion 46 is located closer to the lower end C1 of the first fastener 40 than the bottom surface B1 of the first recessed portion 45, and the third recessed portion The bottom surface B3 of 47 is located closer to the lower end C1 of the first fastener 40 than the bottom surface B2 of the second recess 46.
  • compatibility with the fan unit of the present invention can be provided as follows. That is, in the case of most electric fans currently being produced and sold for home or business, the long shaft length L1 of the motor drive shaft 2 is manufactured in various lengths within a range of 30 to 80 mm. Therefore, each fan has a different length from the threaded part 4 to the clamp 3 by each manufacturer.
  • each fan has a plurality of types of long shaft length L1 of the drive shaft for each manufacturer, the first fastener 40 is fixedly coupled to the motor drive shaft regardless of the various long shaft length L1 of the drive shaft. It should be possible.
  • the fan unit of the present invention has a variety of depths (P1, P2, P3), such as the second recess 46, the third recess 47 in addition to the first recess 45 in the first fastener 40
  • P1, P2, P3 depths
  • the second recess 46, the third recess 47 in addition to the first recess 45 in the first fastener 40
  • the fan unit of the present invention can be mounted on the fan a by engaging the first groove 45 with the engaging shaft of the drive shaft a, and the long shaft length (L1)
  • the fan unit of the present invention can be mounted on the fan b by coupling the catch of the drive shaft b to the second recess 46.
  • a groove that is suitable for the long shaft length L1 of the drive shaft of the user fan can be selected and applied. It becomes usable.
  • the fan unit of the present invention is configured with a structure specialized in a fan commonly used in everyday life, so that regardless of the type of the fan, the conventional fan fan is simply removed and the fan unit of the present invention is installed instead. It is also possible to convert to.
  • the second fastener 70 of the present invention is a configuration for mutually coupling the upper disk 60 and the lower disk 10, and the insertion hole 71 is formed in the center thereof so that the motor drive shaft can be inserted therethrough.
  • the second fastener 70 may be formed in the same shape and structure as the first fastener 40.
  • a plurality of fasteners 48 are formed in the first fastener 40, and a plurality of fasteners 78 may also be formed in the second fastener 70.
  • the first fastener 40 and the first fastener 40 through a long screw that is screwed to the fastening hole 78 of the second fastener 70 through the fastening hole 48 of the first fastener 40
  • the two fasteners 70 may be coupled to each other, whereby the upper disk 60 and the lower disk 10 are assembled together so that one fan unit can be constructed.
  • the support 50 of the present invention is a configuration for supporting and fixing the first fastener 40 so that the insertion hole 41 is located on the central axis of the lower disk 10, one end of which is attached to the first fastener 40 Connected, the other end may be formed of a rod-shaped member connected to the lower disk 10 or the upper disk 60.
  • one end of the support 50 is connected to the first fastener 40, and the other end is connected to the lower disk 10, in the center of the lower disk 10.
  • the first fastener 40 was configured to be fixed.
  • the support 50 When the support 50 is configured as a rod-shaped member, the support 50 may be provided in multiple pieces, and the plurality of supports 50 may have a structure extending radially or crosswise around the first fastener 40. Can be configured.
  • the fan unit of the present invention further includes a second fastener 70
  • a support 53 for further supporting the second fastener 70 is positioned on the central axis of the upper disk 60. You can.
  • one end of the support 53 is connected to the second fastener 70, the other end is made of a rod-shaped member connected to the upper disk 60, the second fastener in the center of the upper disk 60 (70) can be fixed.
  • the second fastener 70 is provided in the central region of the plate body of the upper disk 60 without the above-described separate support 53. It may be attached or mounted, or may be formed integrally.
  • FIG. 9 is a perspective view of a fan unit for a fan further including a plurality of blades as another embodiment of the present invention.
  • the blade 80 of the present invention is provided in the region of the first air inlet 13, so as to rotate about the center of the lower disk 10 by the rotational force by the drive of the fan motor 1 It is composed.
  • the blade 80 may be composed of a plate body disposed at an angle to the lower disk 10 as shown in FIG. 9.
  • a plurality of blades 80 may be provided, and each of the blades 80 may be formed in a downwardly inclined structure on the support 50.
  • the blade 80 when the blade 80 is further formed in the fan unit of the present invention, the blade 80 is also rotated when the lower disk 10 is rotated. At this time, the fan of external air is rotated by the rotation of the blade 80. The inflow of the unit is promoted, and thus the air cleaning performance of the fan unit of the present invention, that is, the intake amount per unit time can be further improved.
  • FIG. 10 is an exploded perspective view of a fan assembly having a fan unit according to the present invention
  • FIG. 11 is an upper cross-sectional view of the fan assembly having a fan unit according to the present invention.
  • the first fastener 40 coupled to the motor 1 rotates axially in connection with driving of the motor 1, whereby the upper part And a rotational motion of the lower disk 10.
  • the air inside the fan unit is discharged to the outside by the rotational force of the fan unit, thereby causing an air pressure difference between the center of the fan unit and the outside of the fan unit, and the external air is in the direction of the arrow in FIG.
  • the first and second air inlets 15 and 65 are introduced into the fan unit.
  • the fan unit of the present invention as described above may be provided in the form of a fan assembly coupled to a drive shaft 2 of a motor 1 provided in a conventional fan.
  • a fan protection net 5 in which an air passage hole is formed and a fan unit is accommodated therein, and a drive shaft 2 are connected and a motor 1 that causes axial rotation of the drive shaft 2 ),
  • a fan unit of the present invention coupled to the drive shaft 2 of the motor 1, may include a fan unit of the present invention that rotates in conjunction with it when the drive shaft 2 rotates.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
PCT/KR2019/002499 2018-10-11 2019-03-05 선풍기용 팬 유닛 및 이를 구비하는 선풍기 조립체 WO2020075928A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021518160A JP7149664B2 (ja) 2018-10-11 2019-03-05 扇風機用ファンユニット及びこれを備える扇風機組立体
CN201980000837.7A CN111315996B (zh) 2018-10-11 2019-03-05 电风扇用风扇单元及具备该风扇单元的电风扇组件

Applications Claiming Priority (2)

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KR10-2018-0121160 2018-10-11
KR1020180121160A KR102117256B1 (ko) 2018-10-11 2018-10-11 선풍기용 팬 유닛 및 이를 구비하는 선풍기 조립체

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JP7149664B2 (ja) 2022-10-07
CN111315996A (zh) 2020-06-19
KR102117256B1 (ko) 2020-06-01
JP2022504124A (ja) 2022-01-13
KR102117256B9 (ko) 2022-02-21
CN111315996B (zh) 2022-02-15
KR20200042547A (ko) 2020-04-24

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