WO2022045741A1

WO2022045741A1 - Cooling fan having improved air cooling efficiency

Info

Publication number: WO2022045741A1
Application number: PCT/KR2021/011305
Authority: WO
Inventors: 김미선
Original assignee: 김미선
Priority date: 2020-08-24
Filing date: 2021-08-24
Publication date: 2022-03-03
Also published as: TW202208789A; JP7405470B2; TWI771128B; CN113503600A; CN113503600B; JP2023522678A; KR102181110B1

Abstract

The present invention provides a cooling fan which has a simple structure that accommodates therein a cooling body, such as a frozen bottle of water, and blows on same, and has convenience of operation and convenience of movement by being manufactured to have a small volume, and in which heat exchange between incoming outside air and the cooling body can be effectively achieved. The present invention comprises: a columnar body accommodating water and a cooling body and having a plurality of heat exchange blades; a blower fan for suctioning air from a plurality of air flow paths between the heat exchange blades and discharging same; a stirring member for stirring water on a bottom sealing member coupled to the lower end of the columnar body; and a stirring actuator for driving the stirring member.

Description

Cooling fan with improved air cooling efficiency

The present invention relates to a cooling fan with improved cooling efficiency of air, and more particularly, by configuring so that heat exchange between a cooling body and water accommodated in a cylindrical body and air passing through the circumference of the cylindrical body effectively occurs. It relates to a cooling fan with improved cooling efficiency.

Although air conditioners are mainly used for cooling in summer, they consume a lot of power and have problems in that they require excessive costs for installation and management.

In particular, installing and operating an air conditioner for cooling a confined space such as a study room has many wasteful factors, so the use of a fan with low energy consumption is recommended. there is

Accordingly, in recent years, a cooling fan that consumes less energy and can be operated simply is developed.

1 is a conventional cooling fan (1) using a refrigerant receiver, which is described in Korea Utility Model Publication No. 20-0480519.

Referring to FIG. 1 , in a state in which the refrigerant receiver 3 is accommodated in the refrigerant accommodating space 2 , the external air introduced into the inlet 6 comes into contact with the refrigerant receiver 3 to perform heat exchange.

The blowing fan is composed of a suction fan (4) and a discharge fan (5), and when the blowing fan is operated, the suction fan (4) inside is sucked so that outside air passes through the refrigerant receptor (3), and The heat exchange is made, and the discharge fan 5 on the outside discharges the cold air sucked in by the suction fan 4 to the outside again through the discharge path 7 .

Such a conventional cooling fan 1 can have a small overall volume, and can supply cold air by a simple structure and operation of rotating a blower fan after installing the refrigerant receiver 3 in the refrigerant accommodating space 2 . there are advantages to

However, the conventional cooling fan 1 is mainly in contact with the outside air on the surface of the refrigerant receptor 3, so the contact area between the coolant receptor 3 and the outside air is narrow, and the air passing through the coolant receptor 3 also passes quickly. Since sufficient heat exchange cannot be made around the refrigerant receiver 3, there is a problem in that the cooling air supply performance and energy efficiency are not high.

The present invention has been devised in view of the above, and an object of the present invention is to accommodate a cooling body such as a frozen mineral water bottle inside and blow it, while having a simple structure and convenience of operation, and convenience of movement that can be manufactured in a small volume, An object of the present invention is to provide a cooling fan having a structure in which the cooling efficiency of air is improved by allowing effective heat exchange between the incoming outside air and the cooling body.

In order to achieve the above object, a cooling fan according to the present invention includes a cylindrical body for accommodating water and a cooling body in an inner space, a cylindrical body having a plurality of heat exchange blades formed along an outer circumferential surface of the cylindrical portion, and the circumference therein A cylindrical cover in which a mold body is inserted to cover the circumference of the heat exchange vanes along the outer ends of the plurality of heat exchange vanes so that air flows in the longitudinal direction of the cylindrical units in a plurality of air flow paths between the heat exchanging vanes; , a blowing fan coupled to the upper end of the cylindrical body and sucking air from the air flow path and discharging it, and a bottom sealing member coupled to the lower end of the cylindrical part so that the upper surface forms a lower surface of the inner space of the cylindrical part; It is characterized in that it comprises a stirring member installed on the bottom sealing member to stir the water contained in the inner space of the cylindrical part, and a stirring driver installed below the bottom sealing member to stir and operate the stirring member.

In addition, in the cooling fan according to the present invention, the stirring member includes a magnet or a ferromagnetic material, and the stirring actuator includes a rotating body including a magnet or a ferromagnetic material to apply a magnetic force to the stirring member to apply a magnetic force to the stirring member or a repulsive force; By including a motor that rotates the whole, by the rotation of the rotating body, the stirring member receives attractive or repulsive force and moves to agitate the water.

In addition, in the cooling fan according to the present invention, the stirring member includes a rod-shaped stirring body, and an annular protrusion surrounding the outer circumferential surface at the center of the stirring body, and the annular protrusion is in contact with the upper surface of the bottom sealing member and the stirring Another feature is that rotation occurs by the rotation of the rotating body in a state in which the body is lying.

In addition, the cooling fan according to the present invention is provided on the upper surface of the bottom sealing member, along the outer periphery of the stirring member which is located in the center and rotates, supporting projections protruding upward at a plurality of positions to support the cooling body, In the blowing fan, a cover coupled to the upper end of the cylindrical portion is coupled to the central portion of the lower portion, and an air guide path for guiding air rising from the air flow path along the periphery of the cover is formed, and the fan is located on the upper side of the cover. A motor and fan blades rotating by the fan motor are installed to raise air from the air guide path, and a display displaying a temperature in the center from the upper surface, and air formed along the periphery of the display and rising from the fan blades Another feature is that the outlet is installed.

In addition, the cooling fan according to the present invention is coupled to the lower end of the cylindrical body to set up the cylindrical body by landing on the floor. and a drip tray member installed to receive the condensed water falling from the heat exchange blades, wherein the drip tray member has a hinge shaft installed on one side, coupled to each other by the hinge shaft at one end, and in contact with each other at the other end to form a complete annular shape A pair of arc-shaped buckets each having a drip tray groove, a magnetic detachable member installed at the other end of the pair of arc-shaped buckets for bonding to each other by magnetic force, and a pair of arc-shaped buckets protruding from the inner side of the bucket It is another feature that a support protrusion is included, and a support groove coupled to the support protrusion is formed on a side surface of the landing housing.

The cooling fan of the present invention includes: a cylindrical body for accommodating water and a cooling body and having a plurality of heat exchange blades; a blower fan for sucking and discharging air from a plurality of air flow paths between the heat exchange blades; It is composed of a stirring member for stirring water on the bottom sealing member coupled to the lower end of the, and a stirring actuator for driving it.

Accordingly, in the cooling fan of the present invention, air flows between the heat exchange blades of the columnar body and heat exchange is performed in a large contact area, and the cooling body and the columnar body also continuously flow therebetween by the water in contact as a whole. Since heat exchange is performed, heat exchange between the incoming outside air and the cooling body can be smoothly and effectively performed, thereby further improving the cooling efficiency of the air.

1 is a cross-sectional view showing the structure of a conventional cooling fan.

2 is an exploded perspective view showing the configuration of each part of the cooling fan according to the embodiment of the present invention;

3 is a cross-sectional view showing the configuration of a cooling fan according to an embodiment of the present invention;

4 is an exploded perspective view showing a modified configuration of the stirring member in the cooling fan according to the embodiment of the present invention;

5 is a cross-sectional view showing the configuration of a cooling fan according to another embodiment of the present invention;

6 is a perspective view showing the configuration of a water receiving member in the cooling fan according to the embodiment of the present invention;

7 is an explanatory view for explaining a process of separating the drip tray member from the landing housing in the cooling fan according to the embodiment of the present invention;

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

2 and 3 , the cooling fan according to the embodiment of the present invention includes a cylindrical part 11 for accommodating water 81 and a cooling body 82 in an internal space 11a and the cylindrical part 11 ) of the columnar body 10 having a plurality of heat exchange blades 12 formed along the circumference of the outer circumferential surface, and the columnar body 10 is inserted therein and the heat exchange blades 12 along the outer ends of the plurality of heat exchange blades 12 ) by covering the circumference of the heat exchange blades 12, the cylindrical cover 20 to allow air to flow in the longitudinal direction of the cylindrical part 11 in the plurality of air flow paths 12a between the heat exchange blades 12, and the cylindrical body. (10) coupled to the upper end of the blowing fan 30 for sucking air from the air flow path (12a) and exhausting, coupled to the lower end of the cylindrical portion 11, the upper surface of the inner space of the cylindrical portion (11) ( The bottom sealing member 50 forming the bottom surface of 11a), and the stirring member 60 installed on the bottom sealing member 50 to stir the water 81 accommodated in the inner space 11a of the cylindrical part 11 ), and a stirring actuator 70 installed on the lower side of the bottom sealing member 50 to stir and operate the stirring member 60 .

The cylindrical body 10 is integrally made of an aluminum material and heat exchanged, and a cylindrical portion 11 for accommodating the water 81 and the cooling body 82 in the inner space 11a, and the A plurality of heat exchange blades 12 are formed along the circumference of the outer peripheral surface of the cylindrical portion 11 .

A plurality of the heat exchange blades 12 are arranged at uniform intervals on the circumference of the cylindrical portion 11, and it is preferable to extend radially from the outer peripheral surface of the cylindrical portion 11 in a helical curved trajectory toward the radial direction. Do.

When the plurality of heat exchange blades 12 extend in a spiral curved trajectory, the contact area with air may be wider than that extended in a straight line with respect to one heat exchange blade 12 .

Between the plurality of heat exchange blades 12, an air flow path 12a is formed to extend in the longitudinal direction of the cylindrical portion 11, and a plurality of heat exchange blades 12 are formed around the cylindrical portion 11 at uniform intervals. is formed

A cylindrical cover 20 surrounding the circumference of the heat exchange blade 12 along the outer end of the plurality of heat exchange blades 12 so that the air flow passage 12a is formed as a passage extending in the longitudinal direction of the cylindrical portion 11. is installed

That is, by installing the cylindrical body 10 fitted inside the cylindrical cover 20, the cylindrical cover 20 has a structure surrounding the periphery of the heat exchange blades 12, and the air flow path between the heat exchange blades 12. (12a) has a longitudinal direction so that the radially outer side is blocked and air flows along the longitudinal direction of the cylindrical portion (11).

The cylindrical portion 11 of the cylindrical body 10 has an inner space 11a formed as an empty space, so that the water 81 and the cooling body 82 can be accommodated therein.

To this end, the inner space 11a of the cylindrical portion 11 is blocked by installing the bottom sealing member 50 at the lower end thereof, and the cover 40 is installed at the upper end thereof.

The cover 40 has a locking jaw 41 caught on the upper end of the cylindrical portion 11 is formed around it, and an annular O-ring 42 is installed at the lower side thereof to act watertightly.

A cooling body 82 is charged into the inner space 11a of the cylindrical portion 11 and filled with water 81 , and the cooling body 82 may be a frozen water bottle.

Water 81 filled around the cooling body 82 serves as a heat transfer medium by contacting the cooling body 82 and the inner surface of the cylindrical portion 11 .

The blower fan 30 is coupled to the upper end of the cylindrical body 10 and sucks air from the air flow path 12a and discharges the air to the upper side.

A cover 40 coupled to the upper end of the cylindrical portion 11 is coupled to the lower portion of the blower fan 30 at the center thereof, and when the cover 40 is fixed to the upper end of the cylindrical portion 11, the blower fan 30 is also included. It may be in a state of being fixed to the upper end of the cylindrical portion (11).

In addition, the blowing fan 30 has an air guide path 35 for guiding air rising from the air flow path 12a along the circumference of the cover 40 from the lower side, and is formed on the upper side of the cover 40 The fan motor 32 and the fan blades 31 rotating by the fan motor 32 are installed, and the air can be raised from the air guide path 35 by the rotation of the fan motor 32 .

In the outer case of the blower fan 30, a display 33 displaying a temperature in the center is formed on the upper surface of the outer case, and an outlet 34 formed along the periphery of the display 33 through which air rising from the fan blades 31 is discharged. is installed

The display 33 may display the outside temperature and the temperature of the cold air discharged by the blower fan 30 .

On the other hand, the bottom sealing member 50 is coupled to the lower end of the cylindrical portion 11 to form a bottom surface of the inner space 11a of the cylindrical portion 11, the upper surface of the inner space (11a) of the cylindrical portion (11) to prevent the water 81 from leaking downward.

The bottom sealing member 50 has an O-ring 52 installed on the outer surface of the circular frame around it, and the circular frame is inserted into the lower end of the cylindrical part 11 in the cylindrical body 10 so that the O-ring 52 is the cylindrical part 11 ), watertightness can be achieved by closely adhering to the inner surface.

Among the bottoms of the inner space 11a of the cylindrical portion 11, on the bottom sealing member 50, a stirring member 60 for stirring the water 81 contained in the inner space 11a of the cylindrical portion 11 is installed. do.

The stirring member 60 serves to stir and stir the water 81 in the inner space 11a while rotating, and is rotated by the stirring driver 70 .

The stirring actuator 70 is installed below the bottom sealing member 50 to rotate the stirring member 60 .

The stirring member 60 includes a magnet or a ferromagnetic material, and the stirring actuator 70 is a rotating body 71 including a magnet or a ferromagnetic material to apply magnetic force to the stirring member 60 to apply attractive or repulsive force; A motor 72 for rotating the rotating body 71 is included.

Accordingly, by the rotation of the rotating body 71, the stirring member 60 is moved by receiving attractive or repulsive force to stir the water 81.

The rotating body 71 may be a bar magnet in which the rotating shaft of the motor 72 is coupled to the middle portion, or may have a structure in which magnets are coupled to both ends of a metal or synthetic resin bar.

The stirring member 60 may have a structure including a rod-shaped stirring body 61 and an annular protrusion 62 surrounding the outer circumferential surface at the center of the stirring body 61 .

The stirring body 61 has a short-length rod shape, and an annular protrusion 62 is installed in the center of the stirring body 61 to contact the upper surface of the bottom sealing member 50 .

Accordingly, the stirring body 61 is in contact with the bottom sealing member 50 by the annular protrusion 62, so that the contact area is small, the friction loss is small, and the rotation can be easily made by induction of the stirring actuator 70. .

When the annular protrusion 62 is in contact with the annular protrusion 62 lying on the center of the upper surface of the bottom sealing member 50, the rotating body 71 of the stirring actuator 70 rotates while the stirring member 60 by magnetic force. causes the rotation of

On the upper surface of the bottom sealing member 50, along the outer periphery of the stirring member 60, which is located in the center and rotates, a support protrusion 53 protruding upward at a plurality of positions is installed, such as a cooling body such as a frozen water bottle. (82) is raised so that it can be supported, and an area in which the stirring member 60 can rotate is secured by the support protrusion 53, so that the movement of the stirring member 60 is prevented by the cooling body 82 do not receive

The stirring actuator 70 is accommodated and installed inside the landing housing 73, and the flange portion 73a of the landing housing 73 having a container shape is bolted to the flange portion 54 of the bottom sealing member 50. As a result, coupling can be made to the lower end of the columnar body 10 via the bottom sealing member 50, and the columnar body 10 is maintained in a state in which the landing housing 73 is landed on the floor. .

The stirring member 60 may be configured as shown in FIG. 4 .

That is, the stirring member 60 is coupled to the inclined blade 65 having the inclined surface 65a on both sides of the central body 64 in which the rotation shaft hole 64a is formed, and the end of the inclined blade 65 has a magnet at the bottom, respectively. (67) is combined.

In addition, the rotation shaft pin 66 is inserted into the rotation shaft hole 64a, and the rotation shaft pin 66 is spirally coupled to the shaft coupling protrusion 68 installed on the upper surface of the bottom sealing member 50 .

Accordingly, the central body 64 and the inclined blade 65 can freely rotate around the rotation shaft pin 66 coupled to the upper surface of the bottom sealing member 50 .

The stirring actuator 70 needs to be harmonized by adjusting the speed of the rotating body 71 using a speed reducer in consideration of the stirring member 60 rotating at a low rotational speed in water with a lot of resistance.

For use of the cooling fan of this embodiment configured as described above, first, the blowing fan 30 and the cover 40 are separated from the columnar body 10, and a cooling body 82 such as a frozen mineral water bottle is put into the water 81. After filling, the cover 40 is covered and the blower fan 30 is coupled thereto.

After that, when the landing housing 73 lands on the floor and the blower fan 30 and the agitation driver 70 are operated in a state in which the cylindrical body 10 is erected, the outside air flows from the lower side to the plurality of air flow paths 12a. It flows in between the heat exchange blades 12 and rises, passes through the air guide path 35 of the blower fan 30, and the cold air is discharged through the outlet 34.

At this time, in the air flow path (12a), as air flows, heat is taken away from the heat exchange vane 12 to cool it, and the heat exchange vane 12 and the cylindrical part 11 are cooled by the cooling body 82 by the water 81 ), which loses heat and cools.

At the bottom of the cylindrical part 11, the water 81 is flowed between the cooling body 82 and the inner surface of the cylindrical part 11 by agitating the water 81 while the stirring member 60 continues to rotate, so that heat exchange is continuous and make it go smoothly

According to the above-described configuration and action, in the cooling fan according to the present embodiment, air flows between the heat exchange blades 12 of the columnar body 10 to exchange heat in a large contact area, and the cooling body 82 and the columnar type The body 10 also continuously flows therebetween and heat exchange is made by the water 81 in contact with the whole, so that the heat exchange between the incoming outside air and the cooling body 82 can be made smoothly and effectively, so the cooling efficiency of the air can be further improved.

Meanwhile, FIG. 5 is a cross-sectional view illustrating a cooling fan in which a water receiving member 90 is additionally installed, according to another embodiment of the present invention.

Referring to FIG. 5, in this embodiment, the cylindrical body 10 is coupled to the lower end of the cylindrical body 10 and landed on the floor to erect the cylindrical body 10 and a container-shaped landing housing 73 for accommodating the stirring actuator 70. is installed, and is installed in an annular shape to surround the landing housing 73 , and a drip tray member 90 for accommodating the condensed water falling from the heat exchange blade 12 is installed.

The drip tray member 90 of this embodiment serves to receive and accommodate the condensed water falling from the heat exchange vanes 12, and to further expand the landing area of the landing housing 73 to make the upright state of the columnar body 10 more stable. It also plays a role.

Referring to FIG. 6 , the drip tray member 90 is coupled to each other by a hinge shaft 93 installed on one side and a hinge shaft 93 at one end and in contact with each other at the other end to form a complete annular shape, respectively. A pair of arc-shaped buckets (91, 92) having (95, 96) and magnetic detachable members (94a, 94b) respectively installed at the other ends of the pair of arc-shaped buckets (91, 92) for bonding to each other by magnetic force And, it includes a support protrusion 97 protruding from the inner side of the pair of arc-shaped buckets (91, 92).

The drip tray member 90 is divided into a pair of arc-shaped

buckets

91 and 92, and the pair of arc-shaped

buckets

91 and 92 are coupled by the hinge shaft 93 to center the hinge shaft 93. It can be spread out or gathered.

On the inner side surfaces of the pair of arc-shaped

buckets

91 and 92, each protruding support protrusion 97 is installed, and is inserted into the support groove 77 corresponding to the side surface of the landing housing 73 to be coupled.

In addition, magnetic

detachable members

94a and 94b are installed at the other end opposite to the hinge shaft 93 in the pair of arc-shaped

buckets

91 and 92, respectively, so that the pair of arc-shaped

buckets

91 and 92 are magnetically applied to each other. to be adhered by means of an external force or to be opened by external force.

The magnetic

detachable members

94a and 94b may be a magnet and a magnet or a magnet and a ferromagnetic plate.

5, after receiving the condensed water of the heat exchange blade 12 in a state in which the drip tray member 90 is coupled to the outer circumferential surface of the landing housing 73, if it is necessary to empty the condensed water of the drip tray member 90, the user As shown in Figure 7, by applying force to the portion where the magnetic detachable members (94a, 94b) are located, the pair of arc-shaped buckets (91, 92) are spread around the hinge shaft (93) to separate the drip tray member (90) and The contained condensate can be discharged.

This action eliminates the need to lift the columnar body 10 while the cooling fan continues to operate, so that the condensed water contained in the

drip tray grooves

95 and 96 does not overflow to the surroundings due to shaking, and only the drip tray member 90 is easily separated and condensed water to be easily discarded.

In addition, in the drip tray member 90 of this embodiment, the support protrusion 97 is coupled to the support groove 77 formed on the side surface of the landing housing 73 when the drip tray member 90 is coupled to the landing housing 73 . is done

Accordingly, the support protrusion 97 is inserted into the support groove 77 so that the drip tray member 90 in a landed state can support the inclination of the landing housing 73 .

This prevents the cylindrical body 10 from falling down and stabilizing the upright installation state because the drip tray member 90 expands and supports the landing area even if the cylindrical body 10 of the cooling fan is inclined.

Although the preferred embodiment of the present invention has been described above, the above embodiment is only an embodiment within the scope of the technical spirit of the present invention, and for those skilled in the art, within the technical spirit of the present invention Of course, other modified implementations are possible.

Claims

A cylindrical body 11 for accommodating the water 81 and the cooling body 82 in the inner space 11a and a cylindrical body having a plurality of heat exchange blades 12 formed along the outer peripheral surface of the cylindrical portion 11 ( 10) and

The columnar body 10 is inserted therein to cover the periphery of the heat exchange blades 12 along the outer ends of the plurality of heat exchange blades 12, so that the air flow path between the heat exchange blades 12 ( In 12a), a cylindrical cover 20 for allowing air to flow in the longitudinal direction of the cylindrical portion 11, and

A blowing fan 30 coupled to the upper end of the cylindrical body 10 and sucking air from the air flow path 12a and discharging it;

a bottom sealing member 50 coupled to the lower end of the cylindrical portion 11 and having an upper surface forming a bottom surface of the inner space 11a of the cylindrical portion 11;

A stirring member 60 installed on the bottom sealing member 50 to agitate the water 81 accommodated in the inner space 11a of the cylindrical part 11;

and a stirring actuator (70) installed below the bottom sealing member (50) to stir and operate the stirring member (60).
According to claim 1,

The stirring member 60 includes a magnet or a ferromagnetic material,

The stirring actuator 70 includes a rotating body 71 including a magnet or a ferromagnetic material to apply magnetic force to the stirring member 60 as attractive or repulsive, and a motor 72 for rotating the rotating body 71. By including

The cooling fan, characterized in that by the rotation of the rotating body (71), the stirring member (60) is moved by receiving attractive or repulsive force to stir the water (81).
3. The method of claim 2,

The stirring member 60 includes a rod-shaped stirring body 61 and an annular protrusion 62 surrounding the outer circumferential surface at the center of the stirring body 61,

The cooling fan, characterized in that the rotation occurs by the rotation of the rotating body (71) in a state in which the annular protrusion (62) is in contact with the upper surface of the bottom sealing member (50) and the stirring body (61) is lying down.
4. The method of claim 3,

On the upper surface of the bottom sealing member 50, along the outer periphery of the stirring member 60, which is located in the center and rotates, a support protrusion 53 protruding upward at a plurality of positions is installed, so that the cooling body 82 ) to support

The blowing fan 30,

The cover 40 coupled to the upper end of the cylindrical portion 11 is coupled to the central portion of the lower portion and an air guide path 35 for guiding air rising from the air flow path 12a along the circumference of the cover 40 . ) is formed, and a fan motor 32 and a fan blade 31 rotating by the fan motor 32 are installed on the upper side of the cover 40 to raise air from the air guide path 35, A cooling fan, characterized in that the display (33) for displaying the temperature in the center of the upper surface, and an outlet (34) formed along the periphery of the display (33) through which the air rising from the fan blade (31) is discharged.
According to claim 1,

A container-shaped landing housing 73 for accommodating the stirring actuator 70, which is coupled to the lower end of the columnar body 10 to erect the columnar body 10 by landing on the floor;

It is installed in an annular shape so as to surround the landing housing 73 and includes a water receiving member 90 for accommodating the condensed water falling from the heat exchange blade 12,

In the water receiving member (90),

A hinge shaft 93 installed on one side, and

A pair of arc-shaped buckets (91, 92) coupled to each other by the hinge shaft (93) at one end and contacting each other at the other end to form a complete annular shape, each having drip tray grooves (95, 96);

Magnetic detachable members (94a, 94b) respectively installed at the other ends of the pair of arc-shaped buckets (91, 92) for bonding to each other by magnetic force;

A support protrusion 97 protruding from the inner side of the pair of arc-shaped buckets 91 and 92 is included,

A cooling fan, characterized in that a support groove (77) coupled to the support protrusion (97) is formed on a side surface of the landing housing (73).