KR200299929Y1 - A gram type breather of transformer - Google Patents

Abstract

The present invention is composed of a single body of the outer wall and the bottom of the dehumidification chamber and the air induction part, the sleeve, and is fixed to the main body directly equipped with a fixing protrusion in the oil cup to reduce the number of parts to simplify the assembly and fabrication productivity The present invention relates to a miniature respirator of a transformer that significantly improves and significantly reduces manufacturing costs and is light and easy to handle. The present invention is in the respirator of a transformer comprising a dehumidifying chamber (2) is filled and dehumidifying chamber (A) which is in communication with the transformer connecting means (6) and an oil cup detachably provided below the dehumidifying chamber, An upper flange 100 which forms an upper portion of the dehumidification chamber A and is provided with a penetrating portion through which the air flows inside the transformer; It is coupled to the lower side of the upper flange 100 to form the outer wall 210 and the bottom 220 of the dehumidification chamber (A) and the air induction portion 230 which is introduced into the oil cup 300 in the lower, and the outer wall ( A body 200 having a predetermined length extending and having a sleeve having an oil cup mounting part 240 formed of a single body, and having a dehumidifying grill 260 therein; Mounted below the main body 200 and provided with a plurality of vent holes 310 for the inlet and discharge of the outside air radially at the top and a plurality of fixing protrusions 320 to be fixed to the oil cup mounting portion 240 The oil cup 300; It characterized in that it comprises a fastening means 400 for assembling and fixing the upper flange 100 and the main body 200.

Description

Miniature respirator of transformer {A GRAM TYPE BREATHER OF TRANSFORMER}

The present invention relates to a respirator of a transformer, in particular, the outer wall and bottom of the dehumidification chamber, the air induction part, the sleeve is composed of a single body, and the fixing cup is provided on the oil cup to be directly fixed to the main body to reduce the number of parts The present invention relates to a compact respirator of a transformer that is easy to assemble and fabricate, which significantly improves productivity, significantly reduces manufacturing costs, and becomes lightweight.

The transformer is installed inside the transformer to increase or decrease the voltage in the transmission and distribution line to prevent the insulation strength from deteriorating due to moisture or dust in the winding of the transformer. It is made to let.

Since the insulating oil inside the transformer and the air above the insulating oil contract or expand according to the ambient air temperature around the transformer, a passage communicating with the outside is provided to prevent damage or explosion of the transformer by the pressure. The respirator 10 is provided to block the inflow of moisture or foreign matter contained in the outside air introduced into the transformer 5 as the passage.

Such a respirator has an oil cup containing oil for sedimenting foreign substances contained in the outside air and a dehumidification chamber filled with a dehumidifying agent on the upper portion of the oil cup so that the foreign matter contained in the outside air is filtered while passing through the oil cup. The moisture is removed and configured to communicate with the transformer.

The respirator of the transformer is provided with an oil cup and a dehumidification chamber, which are basic components of the respirator, and can be divided into a general type called K (Kilo) type and a small size called G (Gram) type according to the transformer standard. The present invention relates to a miniature respirator, also referred to as type G, mainly used in small transformers.

Figure 2 is an exploded perspective view showing the configuration of a miniature respirator of the prior art transformer, Figure 3 is an assembled perspective view of Figure 2, Figure 4 is a partial rotational cross-sectional view of FIG.

The miniature respirator 10 for transformers of the prior art, as shown in FIGS. 2 to 4, is coupled to a transformer connecting means 6 which communicates with the upper part of the transformer and forms an upper flange 11 forming the upper part of the dehumidification chamber 10A. And, it is made of a transparent body to observe the color change of the dehumidifying agent (2) and the outer cylinder 12 forming the outer wall of the dehumidification chamber, and coupled to the lower side of the outer cylinder 12, the oil cup 14 is mounted Fastening means consisting of a bolt 15a and a nut 15b for fastening and assembling the lower flange 13 and the upper flange, the outer cylinder and the lower flange, the oil cup 14 and the oil cup 14, the lower flange 13 It consists of a fastener 16 for fixing to.

The dehumidification chamber (10A) is provided with a grill 17 for receiving the dehumidifying agent (2), a through portion (11a) is formed from the dehumidification chamber to the transformer connecting means (6) is formed and the oil cup (14) Form a plurality of grooves (14a) on the top to allow the outside air to enter and exit through this groove.

In the small respirator 10 of the transformer having such a configuration, foreign substances introduced through the grooves 14a of the oil cup 14 pass through the oil 3 contained in the oil cup 14, and then foreign matters are filtered out. Moisture is removed while passing through 10A to eventually communicate with the transformer 5 through the penetrating portion 11a of the upper flange 11.

However, in the prior art, the outer cylinder 12 and the lower flange 13 are separately configured, in particular, the lower flange 13 is made of a cast body with a heavy body, and the oil cup 14 is separated by a separate fastener 16. Since it is configured to be fixed and mounted, the number of parts, the assembly is complicated, the production and handling is difficult, there is a problem of low productivity and increase the manufacturing cost.

That is, in the prior art, the outer cylinder 12 and the lower flange 13 are configured to be separated, and in particular, the lower flange 13 has a relatively high material cost and is made of a cast body that is heavy, which requires a lot of manpower and time for its assembly. Difficult to handle, there was a problem that waste material costs.

In addition, since the oil cup 14 is fixed by a separate fastener 16, the number of parts increases, which causes a problem in that manpower and time are wasted in production and assembly thereof, and productivity is reduced.

As described above, in the prior art, the outer cylinder 12 and the lower flange 13 are separated, the lower flange is formed of a cast, and the oil cup is configured to be mounted using a separate fastener, thereby increasing the number of parts, thereby increasing manpower and time. This takes a lot, thereby lowering the productivity and increasing the manufacturing cost, there was a problem that the weight is heavy and difficult to handle.

The present invention has been devised to solve the above problems,

The object of the present invention is that the outer wall and the bottom of the dehumidification chamber and the air induction part, the sleeve is composed of a single body, having a fixing protrusion in the oil cup is configured to be directly fixed to the main body

It is easy to assemble and manufacture by reducing the number of parts, which significantly improves productivity, and dramatically reduces manufacturing costs, and provides a compact respirator of a transformer that is light and easy to handle.

1 is an installation state of a general transformer respirator

Figure 2 is an exploded perspective view showing the configuration of the prior art

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

4 is an exploded perspective view of an embodiment according to the present invention

5 is a perspective view of the combination of FIG.

6 is a cross-sectional view of FIG.

Figure 7 is a detailed view of the oil cup mounting portion of the body of one embodiment according to the present invention

* Explanation of symbols for the main parts of the drawings

1: small respirator of the transformer of the present invention 2: dehumidifier

3: oil 5: transformer

6: transformer connecting means 10: conventional miniature respirator

10A: Dehumidification chamber 11: upper flange

11a: through part 12: outer cylinder

13: bottom flange 14: oil cup

16: fastener 17: grille

100: upper flange 200: main body

210: outer wall 220: floor

130: air guide portion 240: oil cup mounting portion

250: sleeve 251: drain groove

260 grill 300 oil cup

310: aeration hole 320: fixed protrusion

400: fastening means A: dehumidification room

Miniature respirator of a transformer according to the present invention to achieve the above object,

In the respirator of a transformer comprising a dehumidification chamber filled with a dehumidifying agent and in communication with the transformer connection means and an oil cup detachably provided below the dehumidification chamber,

An upper flange forming an upper portion of the dehumidification chamber and having a through part for distributing air inside the transformer;

It is coupled to the lower side of the upper flange to form the outer wall and the bottom of the dehumidification chamber, the air induction portion drawn into the oil cup in the lower portion and the outer wall is formed to extend a predetermined length and the sleeve provided with the oil cup mounting portion is made of a single body A main body provided with a dehumidifier grill therein;

An oil cup mounted below the main body and provided with a plurality of ventilation holes at an upper end thereof for inflow and discharge of outside air, and having a plurality of fixing protrusions to be fixed to the oil cup mounting unit;

It characterized in that it comprises a fastening means for assembling and fixing the upper flange and the main body.

As an embodiment according to the present invention,

The oil cup mounting portion provided in the main body is characterized in that the inlet portion is formed in the lower end of the sleeve and the insertion groove provided with a locking projection.

Hereinafter, an embodiment of a miniature respirator of a transformer of the present invention will be described in more detail with reference to the accompanying drawings.

4 is an exploded perspective view of an embodiment according to the present invention, FIG. 5 is a combined perspective view of FIG. 4, and FIG. 6 is a partially rotated cross-sectional view of FIG. 5.

As shown in Figures 4 to 6, the miniature respirator 1 of the transformer according to the present invention, the dehumidification chamber (A) and the dehumidification chamber filled with the dehumidifying agent (2) and in communication with the transformer connecting means (6) (A) is configured to include an oil cup 300 detachably provided downward,

The upper flange 100 forms an upper portion of the dehumidification chamber A, and has a through part 110 through which the inside of the transformer 5 and air flows, and an outer wall 210 and a bottom of the dehumidification chamber A. It is composed of a fastening means 400 consisting of a main body 200, the oil cup 300 and the upper flange 100 and the bolt 410 and the nut 420 for assembling the body to form a 220.

The main body 100 is coupled to the lower side of the upper flange 100 to form the outer wall 210 and the bottom 220 of the dehumidification chamber (A), the air induction portion introduced into the oil cup 300 in the lower ( 230 and the outer wall 210 is formed to extend a predetermined length and the sleeve 250 having the oil cup mounting portion 240 is formed of a single body, the dehumidifying base grill 260 is provided therein.

The main body 200 is preferably formed of a resin material of a transparent body.

The grill 260 provided in the dehumidification chamber A may be integrally formed with the main body 200, but may be separated.

The uneven groove (231) formed radially at the lower end of the air induction part 230 is improved in the air discharge performance as the number is formed, it is preferable to be formed in six places with a predetermined standard (5mm × 5mm). .

As illustrated in FIG. 7, the oil cup mounting part 240 provided in the main body 200 has an insertion part 242 open to the lower end of the sleeve 250 and an insertion groove having a locking protrusion 244 at the inlet. It may be comprised by 241.

The outer edge of the sleeve 250 is formed with a plurality of draining grooves 251 radially to prevent rain water from flowing into the oil cup during rain.

The locking protrusion 244 provided at the inlet of the insertion groove 241 prevents the oil cup 300 from being separated, and the oil cup 300 is easily detached due to the elasticity of the resin material.

The oil cup 300 mounted below the main body 200 has a plurality of vent holes 310 radially formed at an upper end thereof for the inflow and discharge of outside air, and a fixing protrusion for being inserted into and fixed to the oil cup mounting unit. 320 is provided on both sides of the upper end.

Ventilation hole 310 provided radially on the top of the oil cup 300 is preferably provided in eight places with a predetermined size (3mm × 3mm).

Looking at the action state of the miniature respirator 1 of the transformer according to the present invention having such a configuration.

The present invention is filtered through the air (3) contained in the oil cup 300, the outside air introduced through the vent hole 310) of the oil cup 300, the foreign matter is filtered and then dehumidified through the air induction unit 230 The inherent function as a respirator of a transformer which removes moisture by the dehumidifying agent 2 while passing through the seal A and eventually communicates with the transformer 5 through the penetrating portion 110 of the upper flange 100 is known in the art. Is the same as

The present invention consists of a resin material body 200 consisting of a single body that is separated by a lower flange consisting of a cast body which is a cast body which is a conventional body, that is, the outer wall 210 and the bottom of the dehumidification chamber (A) ( 220), the air induction part 230, the sleeve 150 is composed of a single unit to reduce the number of parts and shorten the assembly process to reduce the manufacturing cost, and to be a lightweight body to facilitate handling.

In addition, the fixing cup 320 is provided on both sides of the oil cup 300 so that the mounting to the main body 200 is made by itself, so that a separate fastener is unnecessary.

That is, the fixing protrusion 320 provided in the oil cup 300 itself is configured to be directly attached to and detached from the oil cup mounting portion insertion groove 241 provided in the sleeve of the main body, thereby easily fixing the oil cup 300. .

As such, the present invention is composed of a body 200 made of a lightweight body and an integral body, which is separated from the lower flange of the outer cylinder and the weight in the prior art, while the fixing protrusion 320 provided in the oil cup 300 itself. ) Is directly inserted into the oil cup mounting portion 240 of the main body, thereby significantly reducing the number of parts, shortening the assembly process and facilitating handling.

The present invention is not limited to the above-described embodiments and drawings because various substitutions, modifications, and changes are possible to those skilled in the art without departing from the technical spirit of the present invention. .

As described in detail above, the small respirator of the transformer according to the present invention,

The outer wall and bottom of the dehumidification chamber, the air induction part, and the sleeve are composed of one unit, and the oil cup is provided with a fixing protrusion to be fixed to the main body directly without a separate fastener.

It is a technology that has the advantage of greatly improving productivity by reducing the number of parts and simplifying assembly and manufacturing, and significantly reducing manufacturing cost and making it easier to handle.

Claims (2)

In the respirator of a transformer comprising a dehumidifying chamber (A) filled with a dehumidifying agent (2) and in communication with the transformer connecting means (6) and an oil cup detachably provided below the dehumidifying chamber, An upper flange (100) forming an upper portion of the dehumidification chamber (A) and having a through portion for distributing air inside the transformer; It is coupled to the lower side of the upper flange 100 to form the outer wall 210 and the bottom 220 of the dehumidification chamber (A), the air induction unit 230 and the outer wall that is introduced into the oil cup 300 in the lower ( A main body (200) having a predetermined length extending and a sleeve (250) having an oil cup mounting portion (240) formed of a single body, and having a dehumidifying grill (260) therein; Mounted below the main body 200 and provided with a plurality of vent holes 310 for the inlet and discharge of the outside air radially at the top and a plurality of fixing protrusions 320 to be fixed to the oil cup mounting portion 240 The oil cup 300; Small respirator of the transformer, characterized in that it comprises a fastening means 400 for assembling the upper flange 100 and the main body 200. The method of claim 1, The oil cup mounting unit 240 provided in the main body 200 is a transformer, characterized in that the inlet 242 is formed to the lower end of the sleeve 250, the insertion groove 241 is provided with a locking projection 244 Miniature respiratory system.