KR100402230B1 - Fan for preventing a dust - Google Patents

Abstract

The present invention relates to a foreign matter inflow prevention fan, and in particular, to improve the structure of the fan provided in various devices for the purpose of releasing heat to the outside or circulating the air therein, foreign matters such as moisture, dust, etc. The present invention relates to a device for preventing a decrease in the performance of the fan generated by flowing into the outer peripheral surface, a plurality of blades 111 and a central portion of the wing 110 is formed with a rotating shaft 112, the wing portion 110 of Rotating part 100 formed of a magnet 130 and a magnet support end 120 fastened to an inner circumferential surface, and a plurality of cores 210 wound around a coil 220 and a substrate 230 to which a power line 240 is fastened. The fixing part 200 and the seating part 320 to which the fixing part 200 is fastened, and the rotating shaft 112 of the rotating part 100 are inserted to be rotatable, and the support part 310 provided with the bearing 311. And a plurality of supporting parts of the seating part 320 and the support part 310 at the center bottom. In the fan consisting of a casing 300 made of a support end 321, in the first embodiment, the fixing part 200 is molded in a plastic material so that only the outer circumferential surface of the core 210 and the power line 240 are external. In the second embodiment, the casing 300 has a cylindrical shielding portion 330 protruding upward from the seating portion 320 of the casing 300, and a stepped shielding edge formed at two upper ends of the casing 300. 331 is formed, and the magnet support end 120 is fastened to be spaced apart from the inner circumferential surface of the wing 110 by a predetermined step so that a fine stepped space is formed between the casing 300 and the rotating part 100. The fixing part 200 is shielded, and in the third embodiment, the fixing part 200 is molded in a plastic material so that only the outer circumferential surface of the core 210 and the power line 240 are exposed to the outside. Cylindrical shield 330 is provided on the seating part 320 of the casing 300. Protruding to form a stepped shielding end 331 is formed in the upper end is formed in two steps bent inward, the magnet support end 120 is fastened to be spaced apart from the inner circumferential surface of the wing portion 110 by the A fine stepped space is formed between the casing 300 and the rotating part 100 so that the fixing part 200 is shielded, so that various foreign substances generated by the installation environment of the fan are introduced into the fan. This prevents the fan from increasing its performance and extending its life, which improves stability and economy.

Description

Foreign matter inflow fan {Fan for preventing a dust}

The present invention relates to a fan to prevent foreign substances from entering, and in particular, to improve the structure of the fan provided in various devices for the purpose of releasing heat to outside or circulating the air therein, such as foreign substances such as moisture and dust to the inside of the fan. It is a device to prevent the deterioration of the fan's performance caused by the inflow. It prevents the inflow of various foreign substances generated by the installation environment of the fan to increase the fan's performance and extend the fan's life. The present invention relates to a device capable of improving stability and economy.

In general, the fan is provided with a coil wound inside the core to generate a magnetic field by receiving power, and a plurality of blades and a rotating part equipped with a magnet rotates by the magnetic field generated as described above to generate ambient air. It will be sent in one direction.

The fan is provided in a device that generates a lot of heat, such as various home appliances or computers, to release heat from the inside, or to suck the outside air into the device to cool down the heat generating portion. It is also used for the purpose of supplying cold air and forced circulation inside the device.

1 is a partially cutaway exploded perspective view showing a conventional fan, and FIG. 2 is a sectional view showing a conventional fan.

As shown in FIGS. 1 and 2, the conventional fan includes a wing 11 having a plurality of vanes 11 a on its outer circumference and a rotating shaft 11 b on its bottom, and fastened to an inner circumferential surface of the vane 11. A rotating part 10 formed of a magnet 13 and a magnet support end 12, and a fixing part made of a substrate 23 on which a plurality of cores 21 wound with a coil 22 and a power line 24 are fastened. 20, the seating part 32 to which the fixing part 20 is fastened, the support shaft 31 provided with a bearing 31a to be rotatable, and the rotating shaft 11b of the rotating part 10 is provided. It consists of a casing (30) consisting of a plurality of support ends (32a) for supporting the seating portion 32 and the support portion 31 at the center bottom.

As shown in FIG. 1 and FIG. 2, the conventional fan configured as described above includes a rotary part 10 provided at the support part 31 and the seating part 32 supported by the support end 32a on the central bottom surface of the casing 30. ) And the fixing part 20 are fastened, and when power is supplied through the power line 24 of the fixing part 20, power is supplied to the substrate 23 through the power line 24. Power supplied to the substrate 23 is supplied to the coil 22 of the core 21 fastened to the upper surface of the substrate 23 to form a magnetic field.

At this time, since the magnet 13 of the rotating part 10 is positioned adjacent to the outer circumferential surface of the core 21 on which the coil 22 is wound, the magnet 13 is provided by the magnetic field generated by the fixing part 20. The rotating part 10 rotates, and the magnet 13 of the rotating part 10 is fastened to the wing part 11 through the magnet support end 12, and the rotating shaft 11b of the wing part 11 is rotated. One or more bearings 31a are provided on the inner circumferential surface of the support part 31 so as to be inserted into the support part 31 and rotate smoothly.

However, when the conventional fan is installed and operated in a place where a lot of foreign matters such as moisture and dust according to the installation environment of the fan, various foreign matters as above flow into the fixed part through a space formed between the rotating part and the casing. There was a technical problem that the idea of the spark or spark, which is the main cause of the failure of the fan as well as failure.

The present invention is to solve the above problems, it is possible to increase the performance of the fan and to extend the life of the fan by preventing various foreign substances generated by the installation environment of the fan to enter the fan stability and economical To provide a fan to prevent foreign matter from entering the system.

The present invention has a plurality of wings on the outer circumferential surface and a wing portion with a rotating shaft formed on the central bottom surface, a rotating portion consisting of a magnet and a magnet support end fastened to the inner circumferential surface of the wing portion, a plurality of cores and coils wound around the power cord is fastened It consists of a fixing part made of a substrate, a seating part to which the fixing part is fastened, a support part inserted into the rotating shaft of the rotating part so as to be rotatable, and a plurality of support ends supporting the seating part and the support part at the center bottom. In the fan composed of a casing, the first embodiment is characterized in that the fixing part is molded by plastic material so that only the outer circumferential surface of the core and the power supply line are exposed to the outside, and the second embodiment, the seating part of the casing The cylindrical shield has a protruding upward shape, and the upper end has a stepped shield formed by bending two steps inward. The magnet support end is fastened so as to be spaced apart from the inner circumferential surface of the wing by a predetermined distance, and a fine stepped space is formed between the casing and the rotating part, so that the fixing part is double shielded. The fixing part is molded of plastic material so that only the outer circumferential surface of the core and the power supply line are exposed to the outside, and at the seating part of the casing, a cylindrical shielding part protrudes upward and the upper end part is bent in two steps inward. The formed stepped shielding end is formed, and the magnet support end is fastened to be spaced apart from the inner circumferential surface of the wing by a minute stepped space is formed between the casing and the rotating part, so that the fixed part is shielded by double Is achieved.

1 is a partially cutaway exploded perspective view showing a conventional fan,

2 is a cross-sectional view showing a conventional fan;

Figure 3 is a partial cutaway showing a first embodiment of the foreign matter inflow prevention fan of the present invention

Exploded View,

4 is a cross-sectional view showing a first embodiment of the foreign matter inflow prevention fan of the present invention;

Figure 5 is a partial cutaway showing a second embodiment of the foreign matter inflow prevention fan of the present invention

Exploded View,

6 is a cross-sectional view showing a second embodiment of the foreign matter inflow prevention fan of the present invention;

Figure 7 is a partial cutaway showing a third embodiment of the foreign matter inflow prevention fan of the present invention

Exploded View,

8 is a cross-sectional view showing a third embodiment of the foreign matter inflow prevention fan of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: rotating part 110: wing part

111: wing 112: axis of rotation

120: magnet support 130: magnet

200: fixing part 210: core

220: coil 230: substrate

240: power line 250: molding

300: casing 310: support

311: bearing 320: seating part

321: support end 330: shield

331: shielding stage

3 and 4 are partially cutaway exploded perspective views and cross-sectional views showing a first embodiment of the foreign matter inflow preventing fan of the present invention, and FIGS. 5 and 6 show a second embodiment of the foreign matter inflow preventing fan of the present invention. A partially cutaway exploded perspective view and a cross-sectional view, and FIGS. 7 and 8 are partially cutaway exploded perspective views and a cross-sectional view showing a third embodiment of the foreign matter inflow prevention fan of the present invention.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figure 3 to 8 of the foreign matter inflow prevention fan of the present invention a plurality of wings 111 on the outer circumferential surface and the wing portion 110 is formed with a rotating shaft 112 on the bottom of the center, and the wing portion 110 Rotating part 100 formed of a magnet 130 and a magnet support end 120 fastened to an inner circumferential surface, and a plurality of cores 210 wound around a coil 220 and a substrate 230 to which a power line 240 is fastened. The fixing part 200 and the seating part 320 to which the fixing part 200 is fastened, and the rotating shaft 112 of the rotating part 100 are inserted to be rotatable, and the support part 310 provided with the bearing 311. ), And a fan including a casing 300 including a plurality of support ends 321 for supporting the seating part 320 and the support part 310 at the center bottom, the first embodiment includes the fixing part 200. ) Is molded in a plastic material so that only the outer circumferential surface of the core 210 and the power supply line 240 are exposed to the outside. Cylindrical shield 330 is protruded upward from the seating portion 320 of the 300, and a stepped shield 331 is formed at the upper end thereof and is bent inward in two steps. 120 is fastened so as to be spaced apart from the inner circumferential surface of the wing unit 110 by a predetermined interval is formed between the casing 300 and the rotating unit 100 is a fine step-shaped space is shielded the fixing part 200, the third According to the embodiment, the fixing part 200 is molded in a plastic material so that only the outer circumferential surface of the core 210 and the power line 240 are exposed to the outside, and at the same time, the mounting part 320 of the casing 300 has a cylindrical shape. The upper shielding portion 330 is formed to protrude upward, and the upper end portion is formed with a shielding step 331 having a step shape formed in two steps bent inward, and the magnet support end 120 has an inner circumferential surface of the wing portion 110. It is fastened so as to be spaced apart from the casing 300 and rotates A minute stepped space is formed between the parts 100, and the fixing part 200 is shielded from the technical feature of the configuration.

Hereinafter, the operation of the present invention will be described with reference to FIGS. 3 to 8.

The basic action of the foreign matter inflow prevention fan of the present invention configured as shown in Figures 3 to 8, the support portion 310 and the seating portion 320 is supported by the support end 321 on the central bottom of the casing 300 When the rotating part 100 and the fixing part 200 are fastened to each other, and power is supplied through the power line 240 of the fixing part 200, the power is supplied to the substrate 230 through the power line 240. The power supplied to the substrate 230 is supplied to the coil 220 of the core 210 fastened to the upper surface of the substrate 230 to form a magnetic field.

At this time, since the magnet 130 of the rotating part 100 is positioned adjacent to the outer circumferential surface of the core 210 in which the coil 220 is wound, the magnet 130 is provided by the magnetic field generated by the fixing part 200. The rotating part 100 rotates, and the magnet 130 of the rotating part 100 is fastened to the wing part 110 through the magnet support end 120, and the rotating shaft 112 of the wing part 110 is rotated. One or more bearings 311 are provided on an inner circumferential surface of the support part 310 so as to be inserted into the support part 310 and rotate smoothly.

Referring to the different embodiments of the foreign matter inflow prevention fan of the present invention to act as described above are as follows.

In the first embodiment of the foreign matter inflow prevention fan of the present invention configured as shown in Figures 3 and 4, the fixing part 200 is molded in a plastic material to the outer peripheral surface of the core 210 and the power line 240 Only to be exposed to the outside of the molding 250, the fixing part 200 performs the original function, and various foreign matters such as moisture, dust and the like through the space formed between the rotating part 100 and the casing 300 fixed part ( 200 to prevent the phenomenon of implantation.

In addition, in the second embodiment of the foreign matter inflow prevention fan of the present invention configured as shown in Figures 5 and 6, the cylindrical shield portion 330 protrudes upward on the seating portion 320 of the casing 300. And a stepped shielding step 331 having a stepped shape formed at two upper ends thereof, and the magnet supporting end 120 is fastened to be spaced apart from the inner circumferential surface of the wing part 110 by a predetermined distance. A minute stepped space is formed between the rotating part 100 and the rotating part 100, and the fixing part 200 is shielded in two, so that various kinds of moisture, dust, and the like are formed through the space formed between the rotating part 100 and the casing 300. This prevents the phenomenon that foreign matters flow into the fixing part 200.

In the third embodiment of the foreign matter inflow prevention fan of the present invention configured as shown in Figure 7 and 8, the fixing part 200 is molded in a plastic material to the outer peripheral surface and the power line 240 of the core 210 While only the bay is exposed to the outside, a cylindrical shielding portion 330 protrudes upward from the seating portion 320 of the casing 300, and a stepped shielding stage 331 formed at the upper end thereof in two steps bent inwardly. ) Is formed, and the magnet support end 120 is fastened to be spaced apart from the inner circumferential surface of the wing part 110 by a predetermined interval so that a fine stepped space is formed between the casing 300 and the rotating part 100. The government 200 is double shielded to prevent a phenomenon in which various foreign substances such as moisture and dust flow into the fixing part 200 through a space formed primarily between the rotating part 100 and the casing 300. To the outer periphery of the core 210 And thereby the power supply line 240, only to prevent the implanted in the core 210 and the coil 220 of the molding 250, the fixing part 200, various types of foreign material is exposed to the outside of the.

In this way, the molding process of the double shielding structure and the fixing part 200 formed in the space between the rotating part 100 and the casing 300 prevents the introduction of various foreign substances into the fixing part 200 and at the same time. By preventing the foreign matter from being directly implanted on the core 210 or the coil 220 of the fixing part 200 can effectively prevent the occurrence of failure as well as the performance of the fan.

The present invention as described above can increase the performance of the fan at the same time to prevent the inflow of various foreign matters generated by the installation environment of the fan to the inside of the fan to improve the stability and economic efficiency will be.

Claims (3)

The outer circumferential surface is composed of a plurality of blades and a wing portion with a rotating shaft formed on the bottom of the center, a rotating portion composed of a magnet and a magnet support end fastened to the inner circumferential surface of the wing portion, a plurality of cores wound with coils, and a substrate to which a power line is fastened. A fan comprising a government part, a seating part to which the fixing part is fastened, a support part having a bearing inserted to rotate the rotating shaft of the rotating part, and a plurality of support ends supporting the seating part and the support part at the center bottom. To The fixing part is molded in a plastic material to prevent foreign matter inflow fan, characterized in that only the outer peripheral surface and the power line of the core is exposed to the outside. The outer circumferential surface is composed of a plurality of blades and a wing portion with a rotating shaft formed on the bottom of the center, a rotating portion composed of a magnet and a magnet support end fastened to the inner circumferential surface of the wing portion, a plurality of cores wound with coils, and a substrate to which a power line is fastened. A fan comprising a government part, a seating part to which the fixing part is fastened, a support part having a bearing inserted to rotate the rotating shaft of the rotating part, and a plurality of support ends supporting the seating part and the support part at the center bottom. To The casing has a cylindrical shielding portion protruding upward from the seating portion of the casing, and a shielding end of a step shape formed by bending two steps inwardly is formed at the upper end portion thereof, and the magnet support end is fastened to be spaced apart from the inner circumferential surface of the wing by a predetermined distance. A fine stepped space is formed between the casing and the rotating part to prevent the foreign matter inflow fan, characterized in that the fixing part is double shielded. The outer circumferential surface is composed of a plurality of blades and a wing portion with a rotating shaft formed on the bottom of the center, a rotating portion composed of a magnet and a magnet support end fastened to the inner circumferential surface of the wing portion, a plurality of cores wound with coils, and a substrate to which a power line is fastened. A fan comprising a government part, a seating part to which the fixing part is fastened, a support part having a bearing inserted to rotate the rotating shaft of the rotating part, and a plurality of support ends supporting the seating part and the support part at the center bottom. To The fixing part is molded in plastic material so that only the outer circumferential surface of the core and the power supply line are exposed to the outside, and a cylindrical shielding part protrudes upward from the seating part of the casing, and a step formed by bending two steps inward at the upper end thereof. The shielding end of the shape is formed, the magnet support end is fastened so as to be spaced apart from the inner peripheral surface of the wing portion by a minute step-shaped space is formed between the casing and the rotating portion foreign matters characterized in that the fixed portion is shielded in double Ingress prevention fan.