KR100887250B1 - Fuse holder of cos having a function of sound absorption - Google Patents

Abstract

In the present invention, a fuse holder of a cutout switch having a sound absorbing device is disclosed.

In the fuse holder structure according to the present invention, in the fuse holder structure of the cut-out switch (COS), the fuse holder of the cut-out switch constitutes a bracket and a lower body in order to draw the sound absorbing material into the inside thereof, A lower holder having a hollow fastening portion as a terminal portion; Including a hollow upper body having a fastening groove to be fastened corresponding to the fastening portion of the lower holder, comprising an upper holder constituting a harness with one end of the cap extending to the upper body, the upper holder and the lower holder It consists of a sound absorbing material and a lower separator installed in between.

Therefore, the present invention has the effect of preventing excessive noise caused by high-temperature arc and high-pressure gas generated when the power supply is cut off due to an abnormal wiring line.

Cutout Switch, COS, Sound Absorption, Soundproof, Fuseholder, Arc, High Pressure Gas, Noise

Description

Fuse holder with cut-out switch with sound absorption device {FUSE HOLDER OF COS HAVING A FUNCTION OF SOUND ABSORPTION}

1 is a view showing a fuse holder of a conventional cut-out switch.

2 is an exploded perspective view showing a fuse holder according to the present invention.

3 is a cross-sectional view illustrating a coupling state of FIG. 2.

<Explanation of symbols for main drawings>

200: fuse holder 201: lower holder

203: upper holder 205: sound absorption port

207: bracket 209: lower body

211: fastening portion 213: lower separator

215: sound absorbing material 217: soundproofing material

219: upper separator 221: fastening groove

223: upper body 225: cap

227 harness 229

231, 235: through hole

The present invention relates to a fuse holder of a cut out switch (COS), and more particularly, by configuring a sound absorber (Silencer) in the lower side of the fuse holder, excessive noise due to the pressure generated while the current melting element is melted And it relates to a fuse holder of the cut-out switch having a sound absorbing device that can minimize the high temperature metal vapor.

In general, the cut out switch (COS) is mainly installed at each phase of the column transformer and is used to protect and open and close the transformer. The internal fuse is blown and the fuse holder of the switch is moved by gravity. The self-opening makes it easy to visually identify whether the fuse is blown from afar. The fuse used for the high voltage line among the fuses installed as an overcurrent breaker is capable of withstanding 1.3 times the current of the rated current and melting within 120 minutes with twice the current.

The structure of the cutout switch is demonstrated schematically. 1 is a side view of the cutout switch as a whole. The cut-out switch is fixed to the electric pole by using the mounting bracket 1, and a supporting insulator 2 as an insulator made of insulator is attached to one end of the mounting bracket 1. On both ends of the support insulator 2, a power supply side terminal 3 and a load side terminal 4 are provided, respectively.

A lead wire from the power line is connected to the power supply side terminal 3, and a lead wire to the columnar transformer is connected to the load side terminal 4. A fuse holder 5 is provided between the power supply side terminal 3 and the load side terminal 4. The fuse holder 5 has a fuse 6 installed therein, and both ends thereof are in electrical contact with the terminals 3 and 4. The lower end of the fuse holder 5 is rotatably installed on the bracket 7 and the bracket 7 is connected to the load side terminal 4. The upper end of the fuse holder 5 is elastically contacted by the elastic piece 8 provided together with the power supply side terminal 3. The stopper 9 provided on the power supply-side terminal 3 rotates toward the support insulator 2 to electrically connect the fuse holder 5 so that the fuse holder 5 is stopped in parallel with the support insulator 2. It plays a role.

However, such a conventional cut-out switch is only a structure for easily performing a separation operation of the fuse holder for power cut, and a structure capable of preventing excessive noise generated during the power cut process of the fuse holder has not been proposed. Therefore, the conventional cut-out switch is in an urgent need for a structure capable of preventing durability degradation due to metal vapor and excessive noise.

The present invention was devised to solve such a problem, and an object of the present invention is to form a sound absorber (Silencer) on the lower side of the fuse holder to cut out the high-temperature metal vapor and the sound absorbing device that can minimize excessive noise It is to provide a fuse holder of the switch.

Another object of the present invention is to provide a fuse holder of a cut-out switch having a sound absorbing device capable of achieving convenience of manufacture and ease of use by configuring a silencer as an integral component under the fuse holder.

The fuse holder of the cut-out switch having a sound absorbing device according to the present invention for achieving the above object, in the fuse holder structure of the cut-out switch (COS), the fuse holder of the cut-out switch installs the sound absorbing material into the inside To this end, the bracket and the lower body, the lower holder formed with a hollow fastening portion as the end of the lower body; Including a hollow upper body having a fastening groove to be fastened corresponding to the fastening portion of the lower holder, comprising an upper holder constituting a harness with one end of the cap extending to the upper body, the upper holder and the lower holder Characterized in that it consists of a sound absorbing material and the lower separator is inserted in between.

In addition, the sound absorbing material, the sound-absorbing material for temperature drop and noise absorption, metal vapor (Vapour) absorption and exhaust pressure reduction; One end of the soundproofing material is composed of a plastic upper upper separator, the upper separator is characterized in that the fixing portion protruding from the center, and comprises a plurality of through-holes around.

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

2 is an exploded perspective view illustrating a fuse holder structure of a cutout switch according to the present invention. As shown, the fuse holder of the cut-out switch constitutes a bracket 207 and a lower body 209 for introducing the sound absorbing material into the inside thereof, and a hollow coupling portion ( The upper body, including a hollow upper body 223 having a lower holder 201 is formed, and a fastening groove 221 is fastened corresponding to the fastening portion 211 of the lower holder 201, 223 and the upper holder 203 constituting the harness 227 with one end of the cap 225 extending, the sound absorbing material 215 is installed between the lower holder 201 and the upper holder 203 and It consists of a bottom separator 213.

The sound absorbing material 215 constitutes a sound insulating material 217 for reducing temperature and absorbing noise, absorbing metal vapor, and reducing exhaust pressure, and an upper separator 219 made of plastic as one end of the sound insulating material 217. . The upper separator 219 forms a fixing part 233 protruding from the center, and has a plurality of through holes 235 around the top separator 219. The soundproof material 217 is compression molded of a metal seal into a predetermined shape, performs a temperature drop, and reduces metal vapor and exhaust pressure.

On the other hand, the lower separator 213 forms a coupling hole 229 in the center, and has a plurality of through holes 231 around. In addition, the lower separator 213 is made of a metal material.

The fuse holder of the cut-out switch configured as described above has the lower separator 213 inserted into the lower holder 201 and the sound absorbing material 217 and the upper separator are provided so that the upper separator 219 of the sound absorbing material 215 is facing outward. Install (219). The lower holder 201 in which the lower separator 213 and the sound absorbing material 215 are accommodated in the hollow fastening part 211 is fastened to the upper holder 203, and the fastening part 211 and the fastening groove 221 are provided. Fixation through).

As described above, in the fuse holder of the cutout switch according to the present invention, as shown in FIG. 3, the lower holder 201 and the upper holder 203 are coupled by the fastening part 211, and the lower holder 201. ) And the sound absorbing material 215 and the lower separator 213 are mounted between the upper holder 203 and the upper holder 203. The cut-out switch configured as described above is first fixed to a pole by using an attachment bracket, and a support insulator as an insulator made of insulator is attached to one end of the attachment bracket. On both ends of the support insulator, a power supply terminal and a load terminal are respectively provided.

The lead wire from the power line is connected to the power supply terminal, and the lead wire to the column transformer is connected to the load terminal. A fuse holder 200 according to the present invention is installed between the power supply terminal and the load terminal. Both end portions of the fuse holder 200 are fastened to the above-described support insulators, and electrical contact is made to each end portion. The lower end of the fuse holder 200 is installed to rotate on the bracket 207 and the bracket 207 is connected to the load-side terminal. The upper end of the fuse holder 200 is elastically contacted by a cap 225 installed together with the power supply terminal.

On the other hand, the above-described cut-out switch has an abnormality in the wiring line, when the current flows over the rated current due to surge penetration or overload, the fuse is blown to protect the transformer, the electricity is cut off. At this time, the fuse holder generates excessive noise.

The noise, arc, and gas are introduced into the bodies 223 and 209 of the upper holder 203 and the lower holder 201. At this time, the sound insulation material 217 and the upper separator 219 installed into each body suppress the temperature rise due to arc generation. The temperature increase suppression is achieved through the metal sound insulation material 217, and the sound insulation material 217 formed with a large amount of solid lines suppresses excessive noise generated in the lower holder 201 and the upper holder 203. Noise suppression is to reduce the exhaust pressure through the soundproof material 217 to offset the noise emitted to the outside, the sound absorbing material 215 through the temperature drop and noise absorption, metal vapor absorption and exhaust pressure reduction. On the other hand, the lower separator 213 serves to reduce the noise and gas pressure passing through the sound absorbing material 215, and minimizes the noise emitted to the outside.

As described above, the fuse holder according to the present invention has an effect of preventing excessive noise caused by high-temperature arc and high-pressure gas generated when the power supply is cut off due to an abnormal wiring line.

Claims (3)

In the fuse holder of the cutout switch (COS), The fuse holder of the cut-out switch comprises: a lower holder constituting a bracket and a lower body and having a hollow coupling portion as an end of the lower body in order to install the sound absorbing material therein; Including a hollow upper body having a fastening groove fastened correspondingly to the fastening portion of the lower holder, consisting of an upper holder constituting a harness with one end of the cap extending to the upper body, the lower holder and the upper holder A fuse holder of a cutout switch having a sound absorbing device, characterized in that the sound absorbing material is inserted into and installed between the lower separator. The method of claim 1, The sound absorbing material is a soundproofing material for temperature drop and noise absorption, metal vapor absorption and exhaust pressure reduction; One end of the soundproofing material is composed of a plastic upper upper separator, the upper separator forms a fixing portion protruding from the center, the cut-out switch having a sound absorbing device, characterized in that it has a plurality of through holes around the periphery Fuse holder. The method of claim 1, The lower separator has a coupling hole in the center, and includes a plurality of through holes around the fuse holder of the cut-out switch having a sound absorption device, characterized in that made of a metal material.

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