JPH09246055A - Stationary electromagnetic induction apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size, the weight and the cost of a stationary electromagnetic induction apparatus using a liquid insulator by using a heat pipe cooling system which removes the heat generated by the apparatus efficiently and at a low cost. SOLUTION: Heat pipe cooling systems 4a and 4b provided with heat pipes 1a and 1b, several cooling fins 2a and 2b and heat collecting plates 3a and 3b are placed on the left and right of a stationary inductive electromagnetic apparatus body 5. The depth dimension of the part for placing the stationary inductive electromagnetic apparatus body 5 is smaller then that of the cooling system 4a and 4b so that there may be a space outside the case 7 of the stationary inductive electromagnetic apparatus 7. Cooling fans 8a and 8b are provided in the space so that they may cool the case 7 of the stationary inductive electromagnetic apparatus and the cooling fins 2a and 2b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static induction electromagnetic device such as an oil-filled transformer and a gas-insulated transformer which is electrically insulated by a fluid. More specifically, the present invention relates to the structure of a static induction electromagnetic device that collects the heat loss generated from the winding of the main body of the electromagnetic device by a heat pipe cooling mechanism and efficiently discharges it to the outside for cooling.

[0002]

2. Description of the Related Art Conventional static induction electromagnetic equipment such as oil-filled transformers and oil-filled reactors with small capacity have small absolute values of total load loss, and the average temperature of the winding of the electromagnetic equipment and the temperature of insulating oil are Although it is not necessary to take special consideration to keep it within the specified range, it is necessary to increase the surface area for heat dissipation as the total loss increases as the capacity increases, as can be expressed by equation (1). Becomes

[0003]

[Equation 1]

However, θ is a temperature rise value at equilibrium k is a heat dissipation coefficient w is a total loss s is a specific means for increasing a heat dissipation area and a surface area, as a rib or heat dissipation on the outer wall of the case of the static induction electromagnetic device. A panel was installed to keep the temperature within the specified range.

11 and 12 show a conventional example of a transformer, which is a typical example of a conventional static induction electromagnetic device.

That is, 101 is a transformer body, 102 is a rib provided to increase the surface area, 103 is a case, 104 is a lid, and 105 is insulating oil.

The size (height * length) of the rib 102 is designed so as to satisfy the above equation (1). Therefore, when the capacity exceeds a certain level, the outer shape of the rib 102 becomes large. In the conventional cooling of the transformer, the heat generated from the coil winding is transferred to the upper part by the insulating oil, and is transferred from the upper part to the side part to be cooled by the wall surface of the case or the wall surface of the rib 102. The insulating oil moves to the lower part of the case 103, is heated again by the coil, and rises. That is, conventional transformer cooling is performed by natural convection of insulating oil. Furthermore, the large surface area is a rule for improving the heat dissipation effect, as expressed by the equation (1). The same applies to the reactor as in the transformer.

[0008]

Next, a heat pipe is arranged between windings of a transformer to radiate heat generated in the windings to the outside (Japanese Utility Model Publication No. 62-42513, Japanese Utility Model Publication 6).
No. 3-14410) or a transformer case provided with a guide plate for convection of insulating oil (Shokai 55-96).
No. 626) has been proposed, but the current situation is that it has not been put into practical use due to a problem regarding its effectiveness in consideration of economy when it is applied.

[0009]

To achieve this object, the first means of the present invention is to at least sandwich a stationary induction electromagnetic equipment body with a heat pipe cooling mechanism having a heat pipe, a radiation fin and a heat collecting plate. On both sides, and
Static induction in an electromagnetic equipment case The depth of the installation portion of the main body of the electromagnetic equipment is made shorter than the depth of the installation portion of the heat pipe cooling mechanism in the electromagnetic equipment case to create a space, and a cooling fan is installed in that space. Is.

The second means of the present invention is that the bottom surface of the electromagnetic equipment case in the disposition portion of the stationary induction electromagnetic equipment body and the outermost wall surface of the electromagnetic equipment case in the disposition portion of the heat pipe cooling mechanism. The connection surface is inclined with respect to the main body of the static induction electromagnetic device.

The third means of the present invention is a connecting surface between the front wall surface of the electromagnetic equipment case in the disposing portion of the static induction electromagnetic equipment body and the front wall surface of the electromagnetic equipment case in the disposing portion of the heat pipe cooling mechanism. Is a slant.

According to a fourth aspect of the present invention, at least one cooling fan is provided in the space in front of the electromagnetic equipment case, and the blowout port or the suction port of the cooling fan is disposed in the stationary induction electromagnetic equipment body. It is arranged obliquely with respect to the wall surface of the electromagnetic equipment case.

The fifth means of the present invention is to provide a plurality of cooling fans in the space between the disposition part of the static induction electromagnetic equipment body and the disposition part of the heat pipe cooling mechanism, and to dissipate the heat radiation fins of the heat pipe cooling mechanism. One of the suction port and the blowout port of the cooling fan is disposed to face each other.

Further, the sixth means of the present invention is to arrange at least one shield plate for partitioning the wind of the cooling fan in the electromagnetic equipment case in the disposition part of the stationary induction electromagnetic equipment body between the plurality of cooling fans. It was set up.

In the seventh means of the present invention, the heat pipe cooling mechanism is disposed at a lower position than that of the stationary induction electromagnetic equipment body, and the heat collecting plate of the heat pipe cooling mechanism contacts the heat medium. It is provided with an electromagnetic equipment case that increases the area.

The eighth means of the present invention provides a gap between the heat radiation fins of the heat pipe cooling mechanism and the electromagnetic equipment case in which the main body of the stationary induction electromagnetic equipment is provided, which serves as a flow path for the air from the cooling fan. Further, a cooling air guide is arranged so that the air of the cooling fan passes through the gap and cools the radiation fins.

The ninth means of the present invention is the provision of at least one type of air passage resistor at the inlet or outlet of the air from the cooling fan of the radiation fins of the heat pipe cooling mechanism.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION With the above construction, the first aspect of the present invention
Since the means has the heat pipe cooling mechanism arranged on both sides of the stationary induction electromagnetic device body, when the heat energy generated from the stationary induction electromagnetic device body is collected by the heat collecting plate via the heat medium. Since natural convection of the heat medium can be promoted, efficient heat dissipation can be performed.

The second means of the present invention is to connect the bottom surface of the electromagnetic device case in the disposition part of the static induction electromagnetic device body to the outermost wall surface of the electromagnetic device case in the disposition part of the heat pipe cooling mechanism. Since the surface is inclined toward the stationary induction electromagnetic device body, it is possible to promote natural convection of the heat medium,
Efficient heat dissipation can be performed.

Further, the third means of the present invention is a connecting surface between the front wall surface of the electromagnetic equipment case in the disposing portion of the stationary induction electromagnetic equipment body and the front wall surface of the electromagnetic equipment case in the disposing portion of the heat pipe cooling mechanism. Because of the inclination, the natural convection of the heat medium can be promoted, and efficient heat dissipation can be performed.

Further, according to the fourth means of the present invention, the air outlet or the air inlet of the cooling fan is obliquely arranged with respect to the front wall surface of the electromagnetic equipment case in the installation portion of the stationary induction electromagnetic equipment body. Since the electromagnetic fan case and the radiation fins can be simultaneously cooled by the cooling air from the cooling fan, and the pressure loss to the cooling fan can be reduced, efficient heat radiation can be performed.

Further, in the fifth means of the present invention, one of the inlet and outlet of the cooling fan is arranged to face the heat radiation fin of the heat pipe cooling mechanism so that the cooling air of the cooling fan is used. Since the electromagnetic device case and the radiation fin can be cooled at the same time and the pressure loss with respect to the cooling fan can be reduced, efficient heat radiation can be performed.

The sixth means of the present invention is to provide at least one shield plate for partitioning the wind of the cooling fan with respect to the electromagnetic equipment case in the disposition part of the stationary induction electromagnetic equipment body between the plurality of cooling fans. Since they are arranged, it is possible to prevent the interference of the cooling air of the cooling fan and to efficiently dissipate heat.

Further, in the seventh means of the present invention, the heat pipe cooling mechanism is disposed at a lower position than that of the stationary induction electromagnetic device body, so that the heat collecting plate of the cooling mechanism contacts the heat medium. The area can be increased, and cooling with high heat collection efficiency can be performed.

The eighth means of the present invention provides a gap between the heat radiation fins of the heat pipe cooling mechanism and the electromagnetic equipment case in which the main body of the static induction electromagnetic equipment is provided, which is a flow path for the cooling fan. The cooling fan air passes through the gaps through the radiating fins and is cooled to reduce the temperature distribution difference and the wind speed distribution difference when the cooling fan winds pass through the radiating fins. Good cooling can be performed.

Further, the ninth means of the present invention is to provide a cooling fan which passes through the heat radiating fins by disposing an air passage resistor at the inlet or outlet of the wind from the cooling fan of the heat radiating fins of the heat pipe cooling mechanism. Since the difference in the velocity distribution of the wind can be reduced, efficient cooling can be performed.

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS.

In FIGS. 1 and 2, 4a is a heat pipe cooling mechanism having a heat pipe 1a, radiating fins 2a and a heat collecting plate 3a, and 4b is heat pipe cooling having a heat pipe 1b, radiating fins 2b and a heat collecting plate 3b. Mechanism, 5 is a transformer body, 6 is insulating oil, 7 is a transformer case, 8a is a cooling fan, 8b is a cooling fan, 15
Reference numerals a and 15b are cooling winds.

A plurality of heat radiation fins 2a, 2b are mounted on the heat pipes 1a, 1b, and heat collecting plates 3a, 3b are mounted on the lower parts of the heat pipes 1a, 1b. The transformer body 5 and the heat collecting plates 3a and 3b are disposed in the insulating oil 6 in the transformer case 7. Then, the depth of the disposing portion of the transformer main body 5 is made shorter than the depth of the disposing portion of the heat pipe cooling mechanisms 4a and 4b to provide a space outside the front of the transformer case 7, and the cooling fan 8a, The transformer case 7 and the radiating fins 2a, 2b can be cooled by the cooling air 15a, 15b of 8b, and the cooling fans 8a, 8b.
The cooling fans 8a and 8b are arranged such that the air outlets are parallel to the front wall surface of the transformer case 7 in the disposing portion of the transformer body 5.

To explain the operation of the above structure, the heat energy generated by the heat generated by the transformer body 5 is collected by the heat collecting plates 3a and 3b through the insulating oil 6 and the radiating fins 2a and 2b through the heat pipes 1a and 1b. Transfer heat to. On the other hand, the heat energy generated in the transformer body 5 is transferred to the insulating oil 6
Since it is transmitted to the transformer case 7 via the cooling fan 8a, 8b, the cooling air 15a, 15b of the cooling fans 8a, 8b cools the transformer case 7 and the radiation fins 2a, 2b, thereby enabling effective heat radiation.

In this case, if the cooling air guide 14 is arranged so that the cooling air 15a, 15b of the cooling fans 8a, 8b contacts the transformer case 7 more efficiently, the heat radiation by the transformer case 7 increases. However, more effective heat dissipation becomes possible.

As described above, according to the first embodiment, the heat pipe cooling mechanisms 4a and 4b are arranged on the left and right sides of the transformer body 5, and further, the arrangement portion of the transformer body 5 and the heat pipe cooling mechanism. The cooling winds 15a, 15 of the cooling fans 8a, 8b are provided in the space in front of the transformer case 5 by the arrangement portions of 4a, 4b.
b, the transformer case 7 and the radiation fins 2a, 2b
The cooling fans 8a, 8b are arranged such that the cooling fans 8a, 8b can be cooled and the air outlets of the cooling fans 8a, 8b are parallel to the wall surface of the transformer case 7 in the disposing portion of the transformer body 5. Since the oil 6 can be effectively convected naturally and the transformer case 7 and the radiating fins 2a and 2b can be cooled at the same time, more efficient heat radiation can be performed.

(Embodiment 2) An embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 3 and 4, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The heat pipe cooling mechanisms 4a and 4b in which a plurality of heat radiation fins 2a and 2b are attached to the upper portions of the heat pipes 1a and 1b and heat collecting plates 3a and 3b are attached to the lower portions of the heat pipes 1a and 1b are installed in the transformer main body 5. The transformer body 5 and the heat collecting plates 3a and 3b are disposed in the insulating oil 6 in the transformer case 7. Then, the depth of the disposing portion of the transformer main body 5 is made shorter than the depth of the disposing portion of the heat pipe cooling mechanisms 4a, 4b to provide a space in front of the transformer case 7, and the cooling fans 8a, 8b are provided in the space. The suction wind 16
The transformer case 7 can be cooled by a and 16b, and
The air outlets of the cooling fans 8a and 8b are arranged parallel to the side surfaces of the radiation fins 2a and 2b so that the radiation fins 2a and 2b can be cooled by the cooling air 15a and 15b of the cooling fans 8a and 8b.

The operation of the above structure will be described. The heat energy generated by the heat of the transformer body 5 is collected by the heat collecting plates 3a and 3b through the insulating oil 6, and the heat radiation fins 2a and 2b are passed through the heat pipes 1a and 1b. The cooling fan 8a,
The cooling fins 2a,
Cool 2b. On the other hand, on the other hand, the thermal energy generated by the heat generation of the transformer body 5 is transferred to the transformer case 7 through the insulating oil 6.
To the suction fan 16 of the cooling fans 8a and 8b.
Cooling the transformer case 7 with a and 16b enables effective heat dissipation.

In this case, if the duct is arranged so that the suction air of the cooling fans 8a and 8b comes into contact with the transformer case 7 more efficiently, the heat radiation by the transformer case 7 is increased, which is more effective. Dissipates heat.

As described above, according to the second embodiment, the heat pipe cooling mechanisms 4a and 4b are arranged on the left and right sides of the transformer body 5, and further, the arrangement portion of the transformer body 5 and the heat pipe cooling mechanism. The transformer case 7 can be cooled by the suction air 16a, 16b of the cooling fans 8a, 8b in the space outside the transformer case 5 with the arrangement parts 4a, 4b, and the cooling fan 8
a, 8b Cooling air 15a, 15b radiating fins 2
By arranging the air outlets of the cooling fans 8a and 8b in parallel with the side surfaces of the radiating fins 2a and 2b so that a and 2b can be cooled, the insulating oil 6 can be effectively convected, and the transformer Since the case 7 and the heat radiation fins 2a and 2b can be cooled at the same time, more efficient heat radiation can be performed.

(Third Embodiment) A third embodiment of the present invention will be described below with reference to FIG.

In FIG. 5, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

That is, in the first embodiment, the cooling fans 8a and 8b are cooled in the space in front of the transformer case 7 in the disposing portion of the transformer main body 5 and the disposing portion of the heat pipe cooling mechanisms 4a and 4b. The cooling fans 8a and 8b are arranged such that the air outlets of the fans 8a and 8b are parallel to the front surface of the transformer case 7 in the disposing portion of the transformer main body 5.
The cooling fans 8a and 8b are installed in the space in front of the transformer case 5 between the disposing part of the transformer main body 5 and the disposing parts of the heat pipe cooling mechanisms 4a and 4b. If the heat radiation fans 8a and 8b are arranged obliquely with respect to the front wall surface of the transformer case 7 in the installation portion of the cooling device main body 5, the cooling winds 15a and 15 with respect to the cooling fans 8a and 8b are provided.
Since the pressure loss of b is reduced, the cooling can be performed more efficiently.

(Fourth Embodiment) The fourth embodiment of the present invention will be described below with reference to FIG.

In FIG. 6, the same components as those in the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted. 9
a is a connecting surface between the disposing portion of the transformer main body 5 and the disposing portion of the heat pipe cooling mechanism 4a in the transformer case 7, and 9b is a disposing portion of the transformer main body 5 in the transformer case 7 and the heat pipe. It is a connection surface with the arrangement portion of the cooling mechanism 4b.

That is, in the first and second embodiments, the connecting surface between the disposing portion of the transformer body 5 and the disposing portions of the heat pipe cooling mechanisms 4a and 4b in the transformer case 7 is a right angle. In the fourth embodiment, the connecting surfaces 9a and 9b of the disposing portion of the transformer body 5 and the disposing portions of the heat pipe cooling mechanisms 4a and 4b in the transformer case 7 are slanted toward the inside of the transformer case 7. By doing so, natural convection of the insulating oil 6 is promoted, and more effective heat dissipation is possible.

(Fifth Embodiment) The fifth embodiment of the present invention will be described below with reference to FIG.

In FIG. 7, the same components as those in the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted. 1
Reference numeral 0a represents a connecting surface between the bottom surface of the transformer body 5 in the transformer case 7 and the outermost surface of the heat pipe cooling mechanism 4a, and 10b represents the transformer body 5 in the transformer case 7. It is a connection surface between the bottom surface of the installation portion and the outermost surface of the installation portion of the heat pipe cooling mechanism 4b.

In other words, in the first and second embodiments, the connecting surface between the bottom surface of the transformer body 7 where the transformer main body 5 is disposed and the outermost surface of the heat pipe cooling mechanisms 4a and 4b are disposed at right angles. However, in the fifth embodiment, the bottom surface of the disposing portion of the transformer body 5 in the transformer case 7 and the heat pipe cooling mechanism 4 are described.
Since the connection surfaces 10a and 10b with the side surfaces of the arrangement portions of a and 4b are inclined toward the arrangement portion of the transformer body 5 in the transformer case 7, natural convection of the insulating oil 6 is promoted. , Which enables more effective heat dissipation.

(Sixth Embodiment) A sixth embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 8 and 9, the same components as those of the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted. Reference numeral 11 is a wind shielding plate of the cooling fan.

That is, in the sixth embodiment, the cooling air shielding plate 11 is provided so that the cooling air 15a, 15b of the cooling fan 8a and the cooling fan 8b does not interfere with each other, and thus the cooling air of the cooling fan 8a, 8b is cooled. The interference of 15a, 15b is eliminated, and the cooling air 15a, 15 for the cooling fans 8a, 8b is removed.
Since the pressure loss of b is reduced, the cooling winds 15a, 15b
The amount of airflow is increased, and the heat dissipation efficiency can be improved.

Further, the height of the heat pipe cooling mechanisms 4a, 4b of the transformer case 7 is made lower than the other heights of the transformer case 7, so that the heat collecting plates 3a, 3b and the insulating oil 6 are Increasing the contact area of allows more effective heat dissipation.

(Seventh Embodiment) The seventh embodiment of the present invention will be described below with reference to FIG.

In FIG. 10, the same components as those in the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted.
Reference numerals 12a and 12b denote side surfaces of the transformer case 7 where the transformer main body 5 is disposed, 13 denotes an air passage resistance plate, and 14 denotes a cooling air guide.

In the seventh embodiment, when the height of the heat pipe cooling mechanisms 4a and 4b in the transformer case 7 is set lower than the other heights of the transformer case 7, the heat radiation fins 2a and 2b. And gaps 12c and 12d are provided between the transformer case 7 and the side surfaces 12a and 12b of the transformer main body 5, and the cooling winds 15a and 15b form the gaps 12c and 1b.
By providing the cooling air guide 14 so as to pass through the radiating fins 2a and 2b through 2d, the radiating fins 2a and 2b are provided.
The temperature distribution of the wind of the cooling fan passing through can be made more uniform, and cooling can be performed with higher efficiency. Further, in order to make the air velocity of the cooling fan passing through the heat radiation fins 2a and 2b uniform, the air passage resistor 13 is arranged around the heat radiation fins 2a and 2b.
Since it is possible to make the temperature distribution and speed of the air of the cooling fan passing through a and 2b more uniform, more effective heat dissipation can be performed. The air passage resistor 13
It is needless to say that the same effect can be obtained by disposing the heat dissipation fins 2a and 2b around the heat dissipation fins 2a and 2b so that the velocity of the cooling fan wind passing through the heat dissipation fins 2a and 2b is uniform. Further, in the air passage resistor 13, even if the area of the air passage hole is changed to adjust the air passage resistance value, or the air passage resistance value is changed by the cloth filter, the same effect as described above can be obtained. Further, the air passage resistor 13 can be applied even when the height of the heat pipe cooling mechanisms 4a and 4b of the transformer case 7 is set to be the same as the other heights of the transformer case 7. It goes without saying that the same effect can be obtained.

In each of the first to seventh embodiments, the transformer case 7 and the radiation fins 2a, 2b are cooled by the cooling air 15a, 15b blown out from the cooling fans 8a, 8b. The same cooling effect can be obtained by cooling with the suction air.

Further, in the first to seventh embodiments, the transformer case 7 is cooled by the suction air 16 of the cooling fans 8a and 8b.
a, 16b for cooling the radiation fins 2a, 2b to cool the cooling fans 8a, 8b.
However, the cooling of the transformer case 7 is performed by the cooling air from the cooling fans 8a and 8b.
The same cooling effect can be obtained even if the cooling of a and 2b is performed by the suction air of the cooling fans 8a and 8b.

Furthermore, in each of the first to seventh embodiments, the oil-filled transformer has been described as an example, but not limited to the oil-filled transformer, other static induction electromagnetic devices can be configured in the same manner as in the first to third embodiments. It goes without saying that the same effect as 7 can be obtained.

[0058]

As is apparent from the above description, the first means of the present invention is to dispose the heat pipe cooling mechanism having the heat pipe, the radiation fins and the heat collecting plate on both side surfaces of the stationary induction electromagnetic equipment body. In addition, stationary induction in the electromagnetic equipment case creates a space by making the depth of the electromagnetic equipment body shorter than the depth of the heat pipe cooling mechanism installation part, and by installing a cooling fan in that space, static induction To promote natural convection of the heat medium when the heat energy generated from the electromagnetic device body is collected by the heat collecting plate via the heat medium, and further to cool the electromagnetic device case and the radiation fins by the cooling air of the cooling fan. It is possible to provide a static induction electromagnetic device with high cooling capacity.

In the second means of the present invention, the connection surface between the bottom surface of the electromagnetic device case in the disposition part of the stationary induction electromagnetic device body and the wall surface of the electromagnetic device case in the disposition part of the heat pipe cooling mechanism is provided. The device is tilted obliquely downward toward the main body of the static induction electromagnetic device, so that the natural convection of the heat medium can be promoted and the static induction electromagnetic device with high cooling capacity can be provided.

The third means of the present invention is to connect the front wall surface of the electromagnetic equipment case at the installation portion of the stationary induction electromagnetic equipment body and the front wall surface of the electromagnetic equipment case at the installation portion of the heat pipe cooling mechanism. The surface is inclined, so that the natural convection of the heat medium can be promoted and a static induction electromagnetic device having a high cooling capacity can be provided.

The fourth means of the present invention is one in which the air outlet or the suction port of the cooling fan is arranged obliquely toward the front wall surface of the electromagnetic equipment case at the installation portion of the stationary induction electromagnetic equipment body. The pressure loss to the cooling fan can be reduced, the cooling air can efficiently pass through the heat radiating fins of the heat pipe cooling mechanism, and the electromagnetic equipment case and the heat radiating fins can be cooled at the same time. It is possible to provide a high static induction electromagnetic device.

In the fifth means of the present invention, the heat radiation fins of the heat pipe cooling mechanism are arranged so that either the suction port or the blow port of the cooling fan is opposed to each other, and pressure loss to the cooling fan is reduced. Since the cooling air can efficiently pass through the heat radiation fins of the heat pipe cooling mechanism to cool the electromagnetic equipment case and the heat radiation fins at the same time, it is possible to provide a static induction electromagnetic equipment with a high cooling capacity. Is.

In the sixth means of the present invention, at least one wind shielding plate for the cooling fan is arranged between the plurality of cooling fans with respect to the electromagnetic equipment case in the disposing portion of the stationary induction electromagnetic equipment body. Since it is installed, it is possible to prevent the interference of the cooling air of the cooling fan, it is possible to eliminate the pressure loss to the cooling fan caused by the interference of the cooling air,
It is possible to provide a stationary induction electromagnetic device having a high cooling capacity.

In the seventh means of the present invention, the heat pipe cooling mechanism is arranged at a lower position than the stationary induction electromagnetic equipment body, so that the heat collecting plate of the heat pipe cooling mechanism is connected to the heat medium. It is possible to provide a static induction electromagnetic device having a high cooling capacity, capable of increasing the contact area, cooling with good heat collection efficiency.

In the eighth means of the present invention, a gap serving as a flow path for the cooling fan is provided between the heat radiation fins of the heat pipe cooling mechanism and the electromagnetic equipment case in which the stationary induction electromagnetic equipment body is disposed. By allowing the cooling fan wind to pass through the gap and through the heat radiation fins to cool it, the temperature distribution difference and the wind speed distribution difference when the cooling fan wind passes through the heat radiation fins can be reduced. It is possible to provide a stationary induction electromagnetic device that can perform good cooling.

In the ninth means of the present invention, an air passage resistor is provided at the air intake or the air outlet of the cooling fan of the heat radiation fin, and the difference in the speed distribution of the wind of the cooling fan passing through the heat radiation fin is provided. Therefore, it is possible to provide a stationary induction electromagnetic device that can perform efficient cooling because it can be reduced.

As described above, according to the present invention, it is possible to efficiently cool the heat generation of the static induction electromagnetic equipment, and it is possible to achieve the excellent effects of downsizing, weight reduction, and cost reduction.

[Brief description of drawings]

FIG. 1 is a schematic top view of a stationary induction electromagnetic device according to a first embodiment of the present invention.

FIG. 2 is a schematic front view of a static induction electromagnetic device according to the first embodiment.

FIG. 3 is a schematic top view of a stationary induction electromagnetic device according to the second embodiment.

FIG. 4 is a schematic front view of a stationary induction electromagnetic device according to the second embodiment.

FIG. 5 is a schematic top view of a stationary induction electromagnetic device according to the third embodiment.

FIG. 6 is a schematic top view of a stationary induction electromagnetic device according to the fourth embodiment.

FIG. 7 is a schematic front view of a stationary induction electromagnetic device according to the fifth embodiment.

FIG. 8 is a schematic top view of a stationary induction electromagnetic device according to the sixth embodiment.

FIG. 9 is a schematic front view of a stationary induction electromagnetic device according to the sixth embodiment.

FIG. 10 is a schematic top view of a stationary induction electromagnetic device according to the seventh embodiment.

FIG. 11 is a partially cutaway perspective view of a conventional oil-filled transformer.

FIG. 12 is a schematic top view of a conventional oil-filled transformer.

[Explanation of symbols]

 1a, 1b Heat pipe 2a, 2b Radiating fin 3a, 3b Heat collecting plate 4a, 4b Heat pipe cooling mechanism 5 Transformer body 6 Insulating oil 7 Transformer case 8a, 8b Cooling fan 9a, 9b Connection surface 10a, 10b Connection 11 Cooling Fan wind shielding plate 12c, 12d Gap 13 Air passage resistor 14 Cooling air guide

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Murata 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (11)

[Claims] 1. A heat pipe cooling mechanism having at least a heat pipe, a radiation fin, and a heat collecting plate is arranged on both sides so as to sandwich a main body of the static induction electromagnetic device, and the static induction electromagnetic device in a case of the electromagnetic device. A space is created by making the depth of the installation part of the device main body shorter than the depth of the installation part of the heat pipe cooling mechanism in the electromagnetic device case, and a cooling fan is mounted in the space, and cooling air by the cooling fan is provided. A static induction electromagnetic device that cools at least one of a heat radiation fin of the heat pipe cooling mechanism and an electromagnetic device case by means of. 2. A connection surface between the bottom surface of the electromagnetic equipment case in the disposition part of the static induction electromagnetic equipment body and the outermost wall surface of the electromagnetic equipment case in the disposition part of the heat pipe cooling mechanism is directed toward the static induction electromagnetic equipment body. The static induction electromagnetic device according to claim 1, wherein the static induction electromagnetic device is inclined obliquely downward. 3. An inner diagonal of a connection surface between the wall surface of the front of the electromagnetic device case in the disposition part of the stationary induction electromagnetic device body and the inner and outer wall surfaces of the electromagnetic device case in the disposition part of the heat pipe cooling mechanism. 2. The static induction electromagnetic device according to claim 1, wherein the angle is right. 4. The connection surface between the front wall surface of the electromagnetic equipment case in the disposition portion of the static induction electromagnetic equipment body and the front wall surface of the electromagnetic equipment case in the disposition portion of the heat pipe cooling mechanism is inclined. Item 1. The static induction electromagnetic device according to Item 1. 5. At least one cooling fan is provided in the space in front of the electromagnetic equipment case, and the air outlet or the suction opening of the cooling fan is provided on the wall surface of the electromagnetic equipment case in the installation portion of the stationary induction electromagnetic equipment body. The static induction electromagnetic device according to claim 1, wherein the static induction electromagnetic devices are arranged in parallel to each other. 6. At least one cooling fan is provided in a space in front of the electromagnetic equipment case, and an outlet or a suction port of the cooling fan is provided with respect to a wall surface of the electromagnetic equipment case in a disposition portion of the stationary induction electromagnetic equipment body. The static induction electromagnetic device according to claim 1, wherein the static induction electromagnetic device is inclined. 7. A plurality of cooling fans are provided in the space between the disposition part of the main body of the static induction electromagnetic device and the disposition part of the heat pipe cooling mechanism, and the heat dissipation fins of the heat pipe cooling mechanism have a suction port of the cooling fan. The static induction electromagnetic device according to claim 1, wherein any one of the air outlets is disposed so as to face each other. 8. At least one wind shielding plate for the cooling fan is arranged between a plurality of cooling fans with respect to an electromagnetic device case in a disposing portion of a stationary induction electromagnetic device body.
The static induction electromagnetic device described. 9. An electromagnetic equipment case for increasing a contact area of a heat collecting plate of the heat pipe cooling mechanism with a heat medium by lowering a disposing portion of the heat pipe cooling mechanism lower than a disposing portion of the stationary induction electromagnetic equipment body. The static induction electromagnetic device according to claim 1, further comprising: 10. A gap serving as a flow path of a cooling fan wind is provided between a heat radiation fin of a heat pipe cooling mechanism and an electromagnetic equipment case in a disposition part of a stationary induction electromagnetic equipment body, and
The stationary induction electromagnetic device according to claim 9, wherein a cooling air guide is arranged so that the air of the cooling fan passes through the gap and cools the radiation fins. 11. The static induction electromagnetic device according to claim 1, wherein at least one type of air passage resistor is provided at an inlet or an outlet of air from a cooling fan of a heat radiation fin of a heat pipe cooling mechanism.