KR102411347B1 - Transformer inciuding cooling apparatus installed in distributing panel - Google Patents

Abstract

The present invention configures a first cooling device for cooling the heat of the transformer by air inside the housing on top of the transformation member disposed inside the housing of the switchgear, and by air outside the housing, Various embodiments related to a transformer constituting a second cooling device for cooling the heat transferred to at least a portion of the heat dissipation members have been described. According to one embodiment, the transformer installed in the switchboard is disposed inside the housing of the switchboard. being a transformer member; a plurality of heat dissipating members disposed around the outer surface of the pressure transforming member and cooling heat generated in the process of transforming the pressure transforming member by the working fluid filled in the pressure transforming member; a first cooling device disposed above the transforming member and cooling the heat of the transforming member by air in the housing; and a second cooling device disposed on at least a portion of the plurality of heat dissipation members and configured to cool the heat transferred to at least a portion of the plurality of heat dissipation members by the air outside the enclosure or the cooling water outside the enclosure. and various other embodiments are possible.

Description

Transformer including cooling device installed in switchboard {TRANSFORMER INCIUDING COOLING APPARATUS INSTALLED IN DISTRIBUTING PANEL}

Various embodiments of the present invention relate to a transformer including first and second cooling devices installed in a switchboard for rapidly cooling heat generated therein.

In general, there are many types of transformers, from power transformers connected to transmission and distribution lines to coupling transformers used in electronic circuits. In addition, the power does not change, and the high-voltage coil connected to the power source and the low-voltage coil connected to the load have a structure wound on the same iron core.

Such transformers have recently become large-capacity and ultra-high voltage due to an increase in power demand, and substations are becoming unmanned. As such, when an accident occurs in a large-capacity transformer, the ripple effect is wide, and economic loss and psychological anxiety can be enormous.

The large-capacity transformer blocks the inflow of external moisture or foreign substances and has a closed-type casing in its entirety to maintain an optimal state of internal components, and fills the internal space with a working fluid (eg, insulating oil). For example, a heat sink is installed on one side of the case of the transformer to promote cooling by circulating the working fluid.

The heat sink cools the heat generated in the high and low voltage induction process of the transformer by contacting it with the external atmosphere.

For example, when the working fluid is heated by the heat, natural convection that moves upward by buoyancy occurs. It is cooled by a heat sink installed on the outside of the transformer. The working fluid cooled by the heat sink may be returned back into the transformer.

For example, in a conventional transformer, the internal working fluid that absorbs the heat generated by the transformer moves along the flow path of the heat sink installed on the outside of the transformer body, and performs heat exchange by convection with the outside air to reduce the heat generated by the transformer into the air. to be cooled

However, since the conventional transformer has a structure that cools the heat generated in the transformer by moving the working fluid filled in the transformer to the heat sink, if the area of the heat sink is increased to increase cooling efficiency, the size of the product increases, There was a problem in that the weight of the product increased and the manufacturing cost also increased.

In addition, when the conventional transformer is cooled only with a heat sink, the cooling efficiency of the transformer is lowered, which may damage the insulation of the transformer due to overheating, as well as cause explosion, fire, and power failure of the transformer. there was

As a prior document related to the present invention, there is Republic of Korea Patent Publication No. 10-0957804 (published on May 13, 2010) as a prior document, and the prior document discloses a technology for a “transformer”.

In various embodiments of the present invention, a first cooling device (eg, air circulation cooling device) for cooling the heat of the transforming member by the air inside the enclosure is configured on the top of the transforming member disposed inside the housing of the switchboard and a second cooling device (eg, an air circulation cooling device) configured to cool the heat transferred to at least a portion of the plurality of heat dissipating members by the air outside of the enclosure to provide a transformer installed in the switchboard.

In other various embodiments of the present invention, a second cooling device for cooling the heat transferred to at least a portion of the plurality of heat dissipation members by the cooling water supplied by the cooling water pump disposed outside the housing of the switchgear (eg, cooling water circulation cooling) device) to provide a transformer installed in the switchboard.

However, the technical problems to be achieved by the various embodiments of the present invention are not limited to the above technical problems, and other technical problems may exist.

According to various embodiments of the present disclosure, a transformer may include a transformer installed in a switchgear, comprising: a transforming member disposed inside a housing of the switchgear; a plurality of heat dissipating members disposed around the outer surface of the pressure transforming member and cooling heat generated in the process of transforming the pressure transforming member by the working fluid filled in the pressure transforming member; a first cooling device disposed above the transforming member and cooling the heat of the transforming member by air in the housing; and a second cooling device disposed on at least a portion of the plurality of heat dissipation members and configured to cool the heat transferred to at least a portion of the plurality of heat dissipation members by the air outside the enclosure or the cooling water outside the enclosure. can do.

According to various embodiments of the present disclosure, the first cooling device may introduce cold air into the housing, cool the heat of the pressure transformer, and discharge the heated air to the interior of the housing.

According to various embodiments of the present disclosure, the second cooling device introduces and circulates cold air outside the enclosure into at least a portion of the plurality of heat dissipation members by means of an air supply fan disposed on the side surface of the enclosure. The heat transferred to the plurality of heat dissipating members may be cooled, and air heated by circulation may be discharged to the outside of the enclosure by an exhaust fan disposed outside the enclosure.

According to various embodiments of the present disclosure, the transforming member may include a case; a transforming unit disposed inside the case, transforming the incoming electricity voltage and generating heat according to the transformed voltage; and the working fluid that is filled in the case and has insulation to accommodate the transformer unit and cool the heat of the transformation unit.

According to various embodiments of the present disclosure, the first cooling device may include a cooling cover disposed on the pressure transforming member; a heat pipe disposed inside the cooling cover and dissipating the heat transferred from the transforming member; a cooling inlet fan disposed at one end of the cooling cover and cooling the heat emitted from the surface of the heat pipe while introducing cold air into the cooling cover; and a cooling exhaust fan disposed at the tile end of the cooling cover and discharging the air heated by the heat pipe to the outside of the cooling cover.

According to various embodiments of the present disclosure, the second cooling device is formed in at least a portion of the plurality of heat dissipation members, and is configured to circulate cold air outside the enclosure into at least a portion of the plurality of heat dissipation members. an air supply hole connected to the air supply fan; and an air exhaust hole formed in at least a portion of the plurality of heat dissipation members and connected to the exhaust fan to discharge the heated air to the outside of the housing after circulating the inside of the plurality of heat dissipation members. .

According to various embodiments of the present disclosure, a first air connection part connecting the air supply fan and the air supply hole is disposed between the air supply fan and the air supply hole, and the exhaust fan is disposed between the exhaust fan and the air exhaust hole. A second air connection unit for connecting the fan and the air exhaust hole is disposed, and an air circulation unit for circulating the air while connecting the air supply hole and the air exhaust hole to the inside of at least a portion of the plurality of heat dissipation members can be placed.

According to various embodiments of the present disclosure, the second cooling device is disposed on at least a portion of the plurality of heat dissipation members, and at least a portion of the plurality of heat dissipation members by cooling water supplied from a cooling water pump disposed outside the housing. The heat transferred to it can be cooled.

According to various embodiments of the present disclosure, the second cooling device is formed in at least a portion of the plurality of heat dissipation members, and is configured to circulate the cold coolant outside the enclosure into at least a portion of the plurality of heat dissipation members. a cooling water supply hole connected to the cooling water pump; and a cooling water exhaust hole formed in at least a portion of the plurality of heat dissipating members and connected to the cooling water pump to discharge the heated cooling water to the outside of the housing after circulating the inside of the plurality of heat dissipating members. .

According to various embodiments of the present disclosure, a first cooling water connection unit connecting the cooling water pump and the cooling water supply hole is disposed between the cooling water pump and the cooling water supply hole, and the cooling water is disposed between the cooling water pump and the cooling water exhaust hole. A second cooling water connection unit connecting the pump and the cooling water exhaust hole is disposed, and a cooling water circulation unit connecting the cooling water supply hole and the cooling water exhaust hole and circulating the cooling water is disposed inside at least a portion of the plurality of heat dissipation members can be placed.

According to various embodiments of the present invention, the heat of the working fluid heated at the top of the transforming member disposed inside the housing of the switchgear is transferred to the transforming member, and the transferred heat is transferred to 1 by the air inside the housing. A first cooling device for progressively cooling is disposed, and the working fluid transferred to at least a portion of the plurality of heat dissipation members by external air of the enclosure to at least a portion of the plurality of heat dissipation members disposed on the side surfaces of the pressure transforming member. By disposing a second cooling device for secondary cooling of heat, the first and second cooling devices (eg, air circulation cooling device) can use the air inside the enclosure and the outside air of the enclosure to cool the transforming member. and, thereby, it is possible to improve the cooling efficiency of the transforming member, and to operate the product stably.

In addition, since it is not necessary to increase the area (eg, size) of the plurality of heat dissipating members to increase cooling efficiency, the area (eg, size) of the plurality of heat dissipating members can be reduced, thereby reducing the size of the product. Not only that, but also the weight and manufacturing cost of the product can be reduced.

In addition, cooling water is supplied to at least a portion of the plurality of heat dissipation members disposed on the side surfaces of the transformer member by a cooling water pump disposed outside the housing of the switchboard, and the cooling water is transmitted to at least a portion of the plurality of heat dissipation members By disposing a second cooling device (eg, a cooling water circulation cooling device) for secondary cooling the heat of the working fluid, the second cooling device (eg, a cooling water circulation cooling device) is provided to the air inside the enclosure and the outside of the enclosure The cooling water supplied from the cooling water pump disposed in the cooling water pump may be used to cool the transforming member, thereby further improving the cooling efficiency of the transforming member and operating the product more stably.

In addition, since a separate supply fan and exhaust fan are not required for the product, the manufacturing process can be facilitated by reducing the number of parts, and the manufacturing cost of the product can also be reduced.

1 is a front view illustrating a transformer including first and second cooling devices according to various embodiments of the present disclosure;
2 is a right side view illustrating a transformer including first and second cooling devices according to various embodiments of the present disclosure;
3 is a left side view illustrating a transformer including first and second cooling devices according to various embodiments of the present disclosure;
4 is a front view showing another embodiment of a second cooling device among the components of a transformer including first and second cooling devices according to various embodiments of the present invention.

Since the present invention can have various changes and can have various embodiments, some embodiments will be described in detail with reference to the drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as 'first' and 'second' may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term 'and/or' includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, relative terms described based on what is shown in the drawings, such as 'front', 'rear', 'top', 'bottom', etc., may be replaced with ordinal numbers such as 'first' and 'second'. In ordinal numbers such as 'first' and 'second', the order is the mentioned order or arbitrarily determined, and may be arbitrarily changed as necessary.

Terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present invention, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present invention, should not be interpreted in an ideal or excessively formal meaning. does not

The transformer 100 installed in the switchboard according to various embodiments of the present invention is transformed by the air inside the housing 1 on the upper portion of the transformer 120 disposed inside the housing 1 of the switchboard. A second cooling that constitutes the first cooling device 140 for cooling the heat of the member 120 and cools the heat transferred to at least a portion of the plurality of heat dissipating members 130 by the air outside the enclosure 1 . By configuring the device 150, the first and second cooling devices 140 and 150 suppress the temperature rise of the pressure transformer 120 and the plurality of heat dissipation members 130 to stably operate the product. In addition, it may be a combination of one or more of the various transformers 100 that can improve the cooling efficiency of the product.

1 is a front view illustrating a transformer 100 including first and second cooling devices 140 and 150 according to various embodiments of the present disclosure, and FIG. 2 is a first and second view of the transformer 100 according to various embodiments of the present disclosure It is a right side view showing a transformer 100 including cooling devices 140 and 150, and FIG. 3 is a transformer 100 including first and second cooling devices 140 and 150 according to various embodiments of the present invention. It is a left side view showing.

1 to 3 , the transformer 100 installed in the switchgear may include a transformer 120 , a plurality of heat dissipation members 130 , and first and second cooling devices 140 and 150 . For example, the transformer member 120 , the plurality of heat dissipation members 130 , and first and second cooling devices 140 and 150 , which will be described later, may be disposed inside the housing 1 of the switchboard. For example, the housing 1 may have a rectangular parallelepiped shape. The switchgear may serve to receive power from a power provider and to supply power to facilities requiring power consumption. The switchboard may include the housing 1 of the switchboard. The first and second cooling devices 140 and 150 may be air circulation cooling devices.

The housing 1 of the switchboard may be connected to a second cooling device 150 to be described later, and an air supply fan 160 for introducing cold external air A1 into the housing 1 may be disposed. An exhaust fan 170 that is connected to a second cooling device 150 to be described later and discharges the heated air A2 from the inside of the housing 1 to the outside may be disposed outside the housing 1 .

The inside of the transforming member 120 may transform the incoming electric voltage and generate heat during the transforming process. For example, the transforming member 120 may include a case 121 , a transforming unit (not shown), and a working fluid (not shown). The case 121 has a rectangular shape, and a high-voltage bushing 102 for insulating the conductor and the conductor is installed on the upper surface to transport the current supplied from the outside to the inside of the transformer 120, and the reduced electricity is output on the side surface. A low-pressure bushing 101 may be installed so that it can be achieved.

The transformer unit may be disposed inside the case 121 . For example, the transformer unit may transform an incoming electric voltage and simultaneously generate heat according to the transformed voltage.

The working fluid (not shown) may be filled in the case 121 . For example, the working fluid may have insulating properties to accommodate the transformer unit and cool heat of the transformer unit at the same time.

For example, the high-pressure bushing 101 is inclined upward from the side surface of the case 121 , and a preferable angle of the inclination arrangement is 45°. The high-pressure bushing 101 may be installed so that one end thereof is not higher than that of the low-pressure bushing 102 . This compensates for the abnormally high height of the case 121 by the high-pressure bushing 101 , thereby making it possible to reduce the size of the transforming member 120 without reducing the capacity. In addition, the winding thermometer 104 directly installed on the coil (winding) inside the case 121 and the respirator 103 for releasing extinguishing gas when the internal pressure of the case 121 rises may be installed. Unlike the oil thermometer, which measures the temperature using the working fluid (eg, insulating oil) as a medium, the winding thermometer 104 is installed in direct contact with the coil (winding) to quickly measure the actual temperature of the coil in real time. will show This can measure and display the temperature of the coil more accurately and quickly than in the case of an oil thermometer that reads the temperature transferred by the working fluid (eg, insulating oil) and displays it as the coil temperature. Although the case 121 is described as a rectangle in the embodiment of the present invention, it is not limited thereto and may be applied in various shapes. For example, the case 121 may be formed in a cylindrical shape or a polygonal shape. In this state, the transformer unit disposed inside the case 121 may generate heat while transforming high-voltage electricity into electricity of a voltage used in a general home or industry. For example, the transformer unit may use a conventional transformation method of converting a voltage through electromagnetic induction by varying the number of windings of the primary coil and the secondary coil. may be absorbed and moved to the plurality of heat dissipation members 130 for cooling. For example, the working fluid is heated by heat generated during the pressure transformation operation of the transformation unit, and the heated working fluid rises upwardly inside the case 121 , and is disposed on the side surface of the case 121 . It may be discharged to the plurality of heat dissipation members 130 through the discharge pipe.

The plurality of heat dissipation members 130 may be disposed around the outer surface of the case 121 of the pressure transforming member 120 . For example, the plurality of heat dissipating members 130 may cool the working fluid heated by heat generated in the process of transforming the pressure transforming member 120 . The plurality of heat dissipation members 130 may circulate the working fluid and simultaneously cool the purifying working fluid.

The first cooling device 140 may be disposed on the pressure transforming member 120 . The heat of the transforming member 120 may be cooled by the cold air A1 inside the housing 1 . For example, the first cooling device 140 may cool the heat of the transforming member 120 by heat exchange while introducing the cold air A1 inside the housing 1, and the heated air A2 ) can be discharged into the interior of the housing (1).

For example, the first cooling device 140 may include a cooling cover 141 , a heat pipe 142 , a cooling inlet fan 143 , and a cooling exhaust fan 144 . For example, the cooling cover 141 may be disposed on the case 121 of the transforming member 120 . The cooling cover 141 may cover and cover the heat pipe 142 , the cooling inlet fan 143 , and the cooling exhaust fan 144 , which will be described later.

The heat pipe 142 may be disposed inside the cooling cover 141 . For example, the heat pipe 142 may radiate heat transferred from the transforming member 120 to the inside of the cooling cover 141 .

The cooling inlet fan 143 may be disposed at one end of the cooling cover 141 . For example, the cooling inlet fan 143 introduces the cool air A1 inside the housing 1 of the switchboard into the inside of the cooling cover 141 and at the same time the cooling air A1 is discharged from the surface of the heat pipe 142 . heat can be cooled. The cooling inlet fan 143 may blow the cold air A1 onto the surface of the heat pipe 142 and cool the heat emitted from the heat pipe 142 at the same time.

The cooling exhaust fan 144 may be disposed at a tile end of the cooling cover 141 . For example, the cooling exhaust fan 144 may discharge the air A2 heated by the heat pipe 142 to the outside of the cooling cover 141 .

The second cooling device 150 may be disposed on at least a portion of the plurality of heat dissipation members 130 . For example, the second cooling device 150 may cool the heat transferred to at least a portion of the plurality of heat dissipation members 130 by the cold air A1 outside of the housing 1 . For example, the second cooling device 150 may include an air supply hole 151 and an air exhaust hole 152 . The air supply hole 151 may be disposed in at least a portion of the plurality of heat dissipation members 130 . For example, it may be connected to the air supply fan 160 disposed in the housing 1 to circulate the cold air A1 outside of the housing 1 into at least a portion of the plurality of heat dissipation members 130 . .

The air exhaust hole 152 may be disposed in at least a portion of the plurality of heat dissipation members 130 . For example, the air exhaust hole 152 circulates the inside of the plurality of heat dissipation members 130 and then discharges the heated air A2 to the outside of the housing 1 of the switchboard. It may be connected to the exhaust fan 170 disposed in the .

For example, a first air connection part 153 connecting the air supply fan 160 and the air supply hole 151 may be disposed between the air supply fan 160 and the air supply hole 151 . For example, the first air connection part 153 may connect the cold air A1 from the outside of the housing 1 supplied by the air supply fan 160 to the plurality of heat dissipation members ( 130) can be introduced.

A second air connection part 154 connecting the exhaust fan 170 and the air exhaust hole 152 may be disposed between the exhaust fan 170 and the air exhaust hole 152 . For example, the second air connection part 154 may move the heated air A2 that has passed through the plurality of heat dissipating members 130 to the exhaust fan 170 through the air exhaust hole 152 .

An air circulation unit 155 that connects the air supply hole 151 and the air exhaust hole 152 and circulates the air may be disposed inside at least a portion of the plurality of heat dissipation members 130 . . For example, the air circulation unit 155 may use the cold air A1 introduced through the air supply hole 151 to cool the heat of the plurality of heat dissipating members 130 through the plurality of heat dissipating members 130 . After purifying, the heated air A2 may be discharged to the air exhaust hole 152 .

Hereinafter, a detailed operation of the transformer 100 including the first and second cooling devices 140 and 150 according to various embodiments of the present invention will be described with reference to the accompanying drawings.

First, as shown in FIGS. 1 to 3 above, the transformer 100 installed in the switchgear may include a transformer member 120 , a plurality of heat dissipation members 130 , and first and second cooling devices 140 and 150 . have. For example, the transformer member 120 may be disposed inside the housing 1 of the switchboard. A lower portion of the transforming member 120 may be disposed on a bottom surface of the inner body 1 of the switchboard. In this state, the first cooling device 140 may be disposed on the pressure transforming member 120 . The second cooling device 150 may be disposed on at least a portion of the plurality of heat dissipation members 130 disposed around the side surface of the pressure transforming member 120 .

The air supply hole 151 included in the second cooling device 150 may be formed in at least a portion of the plurality of heat dissipation members 130 , and the air supply hole 151 is connected to the first air connection part ( 153), and the tile end of the first air connection unit 153 may be connected to the air supply fan 160 disposed on the side of the housing 1 of the switchboard.

One end of the air circulation unit 155 disposed inside at least a portion of the plurality of heat dissipation members 130 is connected to the first air connection unit 153 , and the tile end of the air circulation unit 155 has the plurality of ends. It may be connected to an air exhaust hole 152 formed in at least a portion of the heat dissipation members 130 .

The air exhaust hole 152 may be connected to the second air connection part 154 . For example, one end of the air second connection part 154 may be connected to the air exhaust hole 152 , and the tile end of the air second connection part 154 is an exhaust disposed outside the housing 1 of the switchboard. It may be connected to the fan 170 .

In this state, a transforming unit (not shown) may be disposed inside the transforming member 120 disposed inside the housing 1 of the switchboard, and the transforming unit may generate high-voltage electricity in a general household or It can generate heat while transforming it into electricity of the voltage used in industry.

In this case, the working fluid (not shown) filled in the transforming member 120 may be heated by heat generated during the transforming operation of the transforming unit. For example, the transformer unit may be disposed immersed in a filled working fluid. Accordingly, the heat generated by the transformation unit may be transferred to the working fluid to be heated. The heated working fluid may rise upward in the inside of the pressure transforming member 120 , and may be discharged to the plurality of heat dissipation members 130 through a discharge pipe disposed on a side surface of the pressure transforming member 120 . .

In this case, the heated working fluid may be discharged to at least a portion of the plurality of heat dissipation members 130 .

In this case, the heat of the working fluid may also be transferred to the transforming member 120 , and the heat transferred to the transforming member 120 may be transmitted to the first cooling device 140 disposed above the transforming member 120 . can be gradually cooled.

For example, the heat may be transferred to the heat pipe 142 disposed inside the cooling cover 141 of the first cooling device 140 , and the heat pipe 142 may radiate the heat. The heat pipe 142 may radiate the heat to the inside of the cooling cover 141 .

At this time, the cooling inlet fan 143 disposed at one end of the cooling cover 141 introduces the cold air A1 inside the housing 1 into the cooling cover 141 and at the same time the heat Heat emitted from the surface of the pipe 142 may be cooled.

The cooling exhaust fan 144 disposed at the tile end of the cooling cover 141 may discharge the air A2 heated by the heat pipe 142 to the outside of the cooling cover 141 .

Accordingly, the first cooling device 140 may cool the heat of the transforming member 120 transferred by the working fluid that is primarily heated.

In this case, the heated working fluid may be discharged to at least a portion of the plurality of heat dissipation members 130 . In this case, heat of the working fluid may be transferred to at least a portion of the plurality of heat dissipation members 130 .

At this time, the air supply fan 160 disposed on the side of the housing 1 is the first air connection part 153 to at least a portion of the plurality of heat dissipation members 130 to the outside cold air (A1) of the housing (1). ) can be introduced through

The first air connection part 153 may introduce the cold air A1 into the air circulation part 155 . The introduced cold air A1 may circulate along the air circulation unit 155 .

For example, since the air circulation unit 155 is disposed inside at least a portion of the plurality of heat dissipation members 130 , the cold air A1 circulates along the air circulation unit 155 and at the same time the plurality of heat dissipation members 130 . Heat transferred to at least a portion of the heat dissipation members 130 may be cooled secondarily.

The cold air A1 may be heated after circulating the air circulation unit 155 . The heated air A2 may be discharged to the air exhaust hole 152 formed in at least a portion of the plurality of heat dissipation members 130 . At this time, the exhaust fan 170 disposed outside the housing 1 may discharge the heated air A2 to the outside of the housing 1 through the second air connection part 154 .

At this time, when at least a portion of the plurality of heat dissipation members 130 is cooled, the working fluid (not shown) discharged to the plurality of heat dissipation members 130 may be cooled together. The working fluid cooled in this way may be introduced into the inside of the pressure changing member 120 again. The introduced working fluid may cool the transforming unit disposed inside the transforming member 120 .

In this way, the heat of the working fluid (not shown) heated to the top of the transforming member 120 disposed inside the housing 1 of the switchgear is transferred to the transforming member 120 , and the transferred heat is transferred to the housing. (1) a first cooling device 140 that is primarily cooled by the inside cold air A1 of By disposing a second cooling device 150 for secondary cooling the heat of the working fluid transferred to at least a portion of the plurality of heat dissipating members 130 by the external cold air A1 of the housing 1 in a part , the first and second cooling devices 140 and 150 cool the transforming member 120 using the cold air A1 inside the housing 1 and the cold air A1 outside the enclosure 1 . and, thereby, the cooling efficiency of the transforming member 120 can be improved, and the product can be operated stably.

In addition, since the area of the plurality of heat dissipation members 130 does not need to be increased to increase cooling efficiency, the area of the plurality of heat dissipation members 130 can be reduced, thereby making it possible to miniaturize the product, Product weight and manufacturing cost can also be reduced.

4 is a front view showing another embodiment of the second cooling device among the transformer 200 including the first and second cooling devices according to various embodiments of the present invention.

Referring to FIG. 4 , the transformer 200 installed in the switchgear may include a transformer 220 , a plurality of heat dissipation members 230 , a first cooling device 240 , and a second cooling device 250 . have. For example, the transforming member 220 , the plurality of heat dissipating members 230 , and a first cooling device 240 and a second cooling device 250 may be disposed inside the housing 1 of the switchboard.

Among the components of the transformer 200 , the transformer member 220 , the plurality of heat dissipation members 230 , and the first cooling device 240 are the transformer members 220 of the transformer 100 of FIGS. 1 to 3 . , may be the same as or similar to those of the plurality of heat dissipation members 130 and the first cooling device 140 , and overlapping descriptions will be omitted below.

The first cooling device 240 may be an air circulation cooling device, and the second cooling device 250 may be a cooling water circulation cooling device.

According to various embodiments, the second cooling device 250 supplies cooling water B1 to the plurality of heat dissipation members 230 by a cooling water pump 256 disposed at an externally adjacent position of the housing 1 of the switchboard. The heat transferred to at least a portion of the plurality of heat dissipation members 230 is cooled by circulating at least a portion of the inside of the heat dissipation member 230 , and the cooling water B2 heated by circulation is supplied to the switchboard by the cooling water pump 256 . It can be discharged to the outside of the housing (1) of.

For example, the second cooling device 250 may form a cooling water supply hole 251 and a cooling water exhaust hole 252 . For example, the cooling water supply hole 251 may be formed in at least a portion of the plurality of heat dissipation members 230 . The cooling water supply hole 251 is a cooling water disposed outside the housing 1 to circulate the cold cooling water B1 outside the housing 1 to at least a portion of the plurality of heat dissipation members 230 . It may be connected to the pump 256 .

The cooling water exhaust hole 252 may be formed in at least a portion of the plurality of heat dissipation members 230 . For example, the cooling water exhaust hole 252 circulates the inside of the plurality of heat dissipation members 230 to discharge the heated cooling water B1 to the outside of the housing 1 of the switchboard. can be connected

For example, a first cooling water connection part 253 connecting the cooling water pump 256 and the cooling water supply hole 251 may be disposed between the cooling water pump 256 and the cooling water supply hole 251 . For example, the first coolant connection part 253 may introduce the cold coolant B1 supplied by the coolant pump 256 to the plurality of heat dissipation members 230 through the coolant supply hole 251 . .

A second coolant connection part 254 connecting the coolant pump 256 and the coolant exhaust hole 252 may be disposed between the coolant pump 256 and the coolant exhaust hole 252 . For example, the second coolant connection part 254 may move the heated coolant B2 passing through the plurality of heat dissipating members 230 to the coolant pump 256 through the coolant exhaust hole 252 .

A cooling water circulation unit 255 connecting the cooling water supply hole 251 and the cooling water exhaust hole 252 and circulating the cooling water may be disposed inside at least a portion of the plurality of heat dissipation members 230 . . For example, the cooling water circulation unit 255 transfers the cold cooling water B1 of the cooling water pump 256 introduced through the cooling water supply hole 251 to the plurality of heat dissipating members 230 to cool the heat of the plurality of heat dissipating members 230 . After purifying the heat dissipation members 230 , the heated cooling water B2 may be discharged to the cooling water pump 256 through the cooling water exhaust hole 252 . For example, the cold cooling water B1 is supplied to the cooling water circulation unit 255 by the cooling water pump 256 , and the warmed cooling water B2 is supplied to the cooling water circulation unit 255 by the cooling water pump 256 . ) can be released from

In this way, the heat of the working fluid (not shown) heated to the top of the transforming member 220 disposed inside the housing 1 of the switchboard is transferred to the transforming member 220, and the transferred heat is transferred to the A first cooling device 240 for cooling primarily by air inside the housing 1 is disposed, and at least a portion of the plurality of heat dissipating members 230 disposed on the side surface of the transforming member 220 is the A second agent for supplying cooling water by a cooling water pump 256 disposed on the outside of the housing 1 and cooling the heat of the working fluid transferred to at least a portion of the plurality of heat dissipation members 230 by the cooling water By disposing the second cooling device 250 , the first and second cooling devices 240 , 250 are connected to the internal air A1 and A2 of the enclosure 1 and a cooling water pump disposed outside the enclosure 1 ( 256) can be used to cool the transforming member 220 using the cooling water B1 and B2 supplied from), thereby further improving the cooling efficiency of the transforming member 220, and more stably operating the product can do it

In addition, since a separate supply fan and exhaust fan are not required for the product, the manufacturing process can be facilitated by reducing the number of parts, and the product can be further miniaturized and the manufacturing cost can be reduced.

The transformer including the first and second cooling devices installed in the switchgear of the various embodiments of the present invention described above is not limited by the above-described embodiments and drawings, and various substitutions, modifications and It will be apparent to those of ordinary skill in the art to which the present invention pertains that changes are possible.

100, 200: Transformer 1: Enclosure
120, 220: pressure transformer 130, 230: a plurality of heat dissipation members
140, 240: first cooling device 150, 250: second cooling device
A1: cold air A2: warm air
B1: cold coolant B2: hot coolant
160: supply fan 170: exhaust fan

Claims (9)

In the transformer installed in the switchboard,
a transforming member disposed inside the housing of the switchboard;
a plurality of heat dissipating members disposed around the outer surface of the pressure transforming member and cooling heat generated in the process of transforming the pressure transforming member by the working fluid filled in the pressure transforming member;
a first cooling device disposed above the transforming member and cooling the heat of the transforming member by air in the housing; and
A second cooling device disposed on at least a portion of the plurality of heat dissipating members and cooling the heat transferred to at least a portion of the plurality of heat dissipating members by the air outside the enclosure or the cooling water outside the enclosure; and ,
The first cooling device may include: a cooling cover disposed on the pressure transformer member;
a heat pipe disposed inside the cooling cover and dissipating heat received from the transforming member;
a cooling inlet fan disposed at one end of the cooling cover and cooling the heat emitted from the surface of the heat pipe while introducing cold air into the cooling cover; and
and a cooling exhaust fan disposed at the tile end of the cooling cover and discharging the air heated by the heat pipe to the outside of the cooling cover.
The transformer according to claim 1, wherein the first cooling device introduces cold air into the housing, cools the heat of the transformer, and discharges the heated air into the housing.
The method of claim 1, wherein the second cooling device introduces and circulates cold air outside the enclosure into at least a portion of the plurality of heat dissipating members by means of an air supply fan disposed on a side surface of the enclosure to circulate the plurality of heat dissipating members. Cooling the heat transferred to the heat dissipation member, and discharging the air heated by circulation to the outside of the enclosure by an exhaust fan disposed adjacent to the enclosure.
According to claim 1, wherein the transformation member,
case;
a transforming unit disposed inside the case, transforming the incoming electricity voltage and generating heat according to the transformed voltage; and
and the working fluid which is filled in the case and has insulation properties to accommodate the transformer unit and cool the heat of the transformer unit.
delete According to claim 3, The second cooling device,
an air supply hole formed in at least a portion of the plurality of heat dissipation members and connected to the air supply fan to circulate cold air outside the enclosure to at least a portion of the plurality of heat dissipation members; and
an air exhaust hole formed in at least a portion of the plurality of heat dissipation members and connected to the exhaust fan to discharge the heated air to the outside of the housing after circulating the inside of the plurality of heat dissipation members transformer that does.
7. The method of claim 6, wherein a first air connecting portion connecting the air supply fan and the air supply hole is disposed between the air supply fan and the air supply hole,
A second air connection part connecting the exhaust fan and the air exhaust hole is disposed between the exhaust fan and the air exhaust hole,
An air circulation unit connecting the air supply hole and the air exhaust hole and circulating the air is disposed inside at least a portion of the plurality of heat dissipation members.
According to claim 1, wherein the second cooling device cools the heat transferred to at least a portion of the plurality of heat dissipation members by the cooling water supplied from the cooling water pump disposed outside the housing,
The second cooling device,
a cooling water supply hole formed in at least a portion of the plurality of heat dissipation members and connected to the cooling water pump to circulate the cold coolant outside the enclosure to at least a portion of the plurality of heat dissipation members; and
and a cooling water exhaust hole formed in at least a portion of the plurality of heat dissipating members and connected to the cooling water pump to discharge the heated cooling water to the outside of the housing after circulating the inside of the plurality of heat dissipating members. transformer that does.
9. The method of claim 8, wherein a first cooling water connection part connecting the cooling water pump and the cooling water supply hole is disposed between the cooling water pump and the cooling water supply hole;
a second coolant connection part connecting the coolant pump and the coolant exhaust hole is disposed between the coolant pump and the coolant exhaust hole;
A cooling water circulation unit connecting the cooling water supply hole and the cooling water exhaust hole and circulating the cooling water is disposed inside at least a portion of the plurality of heat dissipation members.

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