MXPA98008876A - Converter of electrical power and cooler, type of heating pipe, for electrical converter electric - Google Patents

Abstract

A flue, comprising the semiconductor devices for electric power 8 and a cooler, of the heating tube type, for cooling these semiconductors for electric power, is placed vertically. The heating tube type cooler 5 is provided with moving parts 3, which can be moved along the guide rail 2, installed in the frame 1B, in which the flue 6 is contained. Also, under the flue 6, the electric parts 7 are placed for a connection with the outside. Taking such arrangements, the influence by the placement of the cooler, of the heating pipe type, can be reduced to a minimum and the space required for the equipment can be saved.

Description

CONVERTER OF ELECTRICAL POWER AND COOLER. TYPE HEATING TUBE. FOR THE ELECTRICAL POWER CONVERTER BACKGROUND OF THE PRESENT INVENTION 1. Field of the Present Invention The present invention relates to an electric power converter, comprising a plurality of semiconductor devices of electrical energy; a cooler, of the heating tube type, to cool the semiconductor devices; to the conductors and the other electrical parts, and to a heating tube type cooler for the electric power converter. 2. Description of the Related Art In recent years, it has become a problem that becomes large heat loss, as the capacity of semiconductor devices for electrical power, becomes large and their speed becomes high. Therefore, it is one of the important technical objects to avoid this problem. Figure 1 shows a general constitution of an electric power converter, of the self-cooling type, with a cooler, of the heating tube type. As shown in Figure 1, an electrical power converter comprises mainly a cooler 101, of the heating tube type; a semiconductor element for electric power 102; electrical parts 103, such as a conductor and a frame 104. This cooler 101, of the heating tube type, mainly comprises a part 105 receiving heat, which contacts the semiconductor devices of the electrical power 102; the heating tubes 106 and the fins 107 of heat radiation. Likewise, these heat radiation fins 107 are located vertically to the heating pipe 106. Due to such configuration, no forced cooling system is required. In the case of an electric power converter, of the self-cooling type, in which natural convection cooling takes place, the air stagnates between the fins and the cooling efficiency decreases, when the radiation fins are arranged horizontally , in other words, the heating tubes 106 are arranged vertically. On the other hand, the return of the refrigerant is not carried out, when the heating tubes are arranged horizontally, so that the heat radiation fins are arranged vertically. Therefore, it is a general way of arranging the heating pipes almost horizontally, at a certain angle, taking into consideration the return of the cooling liquid.

The power converters of such a constitution are widely used for inverting devices, rectifiers, and the like, and are necessary and indispensable for the electric power field. However, in the case of an energy converter, self-cooling type, with a heating tube type cooler, according to the prior art, due to the special configuration of the radiator heat fins of the cooler, type of heating pipe, the arrangement is restricted and the radiation fins as vertically as possible, as shown in figure 1, the configuration and dimensions of the system depend on the configuration and dimensions of the pipe type cooler. Heating extensively. Also, as there are differences in the temperature between the respective piles during the operation, when the system comprises batteries that include the main circuit, which are cumulated upwards, taking the constitution of the main circuit and the saving in space in consideration, the height of the system becomes larger, and in which preventive measures are taken to make the cooling capacity of the respective stacks uniform. Likewise, in order to be able to have the largest capacity, the heating type coolers and semiconductor devices are connected in parallel alternately and thus make up the main circuits, and there is no way to decline that the system becomes larger. In that case, the arrangement, the configuration and the size of the cooler, of heating tube type have become a major problem for the manufacture of a compact total system. Likewise, in general, electric power converters have been formed with such a construction that the elements, such as the semiconductor energy devices, the heating tube type cooler and other electrical parts, are fixed on the frame. Therefore, it is very difficult to manufacture the design, by which the rupture of semiconductor devices is prevented, due to vibrations during transport or ground shaking, since the total system becomes a complicated system of vibrations.r.

SUMMARY OF THE PRESENT INVENTION Therefore, an object of the present invention is to provide novel energy converters, which are shockproof, for transport and ground shaking, by the supply of a heating tube type cooler, which performs cooling by natural convection, by which sufficient cooling effect can be obtained in a vertical arrangement; by the manufacture of the configuration of a system hardly affected by the arrangement of the heating pipe type cooler; by the provision of an electric power converter and a heating tube type cooler for the electric power converter, which is excellent in saving space for the systems; by the provision of such a construction, that the semiconductor devices and the parts that make up the main circuit of the heating tube type cooler, are not fixed directly to the frame; by the suppression of vibrations of the parts that make up the main circuit by supplying a spring type damper system between the parts and the main equipment. The aforementioned object can be achieved by the provision of an energy converter and a heating tube type cooler for the electric power converter, which were described above. In other words, in the power converter, of the present invention, the batteries of the semiconductor devices and the heating tube type cooler, to cool the semiconductor devices, are arranged vertically, at the same time, the electrical parts which include the driver for connection to the outside are located under the pile.

Through such a constitution, the configuration of the system in the depth direction, is not affected by the configuration of the cooler, heating tube type, and, likewise, no upward accumulation is necessary, so that the total system It can be built in a compact and simplified way. As the system is not stacked construction, it is also possible to obtain a good cooling effect. As the electrical parts, such as the conductor for connection to the outside and the capacitor are located under the stack, the total system can be constructed in a compact and simple way. Likewise, the aforementioned object of the present invention can be achieved by the provision of an electric power converter and the cooler, of the heating tube type, for the electric power converter, of the aforementioned constitution. In other words, in the electric power converter of the present invention, the battery containing the semiconductor devices for electric power and the stack containing the heating tube type cooler for cooling the semiconductor devices for electric power, they are arranged vertically and, at the same time, a moving part, which can be moved between the rails installed in the frame containing the battery, is provided in the heating pipe type cooler and the electrical parts that include the conductor for the connection to the outside are located under the pile. As described above, the work consists of semiconductor devices for electrical power and a heating tube type cooler can be simplified by the provision of a moving part to transfer the heating tube type cooler. In this regard, at least the electrical parts that include the conductor for connection to the outside can be received in a closed container filled with an insulating gas. It is possible to decrease the intensity of the electric field and improve the resistance to the voltage, using an insulation gas, the space required for the electrical parts can be reduced and the total system can be designed in compact form. Likewise, the cooler, of the heating tube type, may be provided with an inclined portion of the radiation fins, whereby the air inlet is located below and the air outlet is located above. Taking such constitution, a decrease in the cooling effect, due to the stagnation caused between the radiation fins, can be prevented, and thus a good cooling effect can be achieved.

Also, the radiation fins can be arranged inclined to the heating pipes. Also by such a constitution, a decrease of the cooling effect, due to stagnation, caused between the radiation fins, can be impeded, and a good cooling effect can be obtained. Likewise, it is possible to supply side plates, by which the air flow is restricted, on the sides of the radiation fins of the heating tube type cooler. By taking such a constitution, the strength of the stack construction can be increased, since the radiation fins are supported by the side walls. Also, when a plurality of stacks are placed side by side, the cooling effect can also be improved, since the directions of the air flow are restricted at the air inlet and at the outlet by the side walls for the respective stacks. Likewise, the heating tube type cooler may comprise a plurality of heating tubes, which are not provided with radiation fins. Taking such a constitution, the cooling efficiency is not affected by the location, because there are no radiation fins and, therefore, any proposal regarding the location can be accepted.

Also, the heating tube type cooler may be provided with a plurality of fins formed as pins. Taking such a constitution, the cooling efficiency is not affected by the location, since the fins are formed as spikes and, therefore, any proposal regarding the location can be accepted. Likewise, the heating tube type cooler may be provided with radiation fins, which are arranged in the same direction as the heating pipes. By taking such a constitution, cooling efficiency does not decrease due to stagnation between the fins, and good cooling efficiency can be obtained. Also, for the heating pipe type cooler, an insulated cooler of the heating pipe type can be used, whereby the heat receiving part and the radiation part are separated electrically and a coolant is used, in which the resistance The electrical insulation is greater than that of water. Taking such a constitution, it is no longer necessary to supply a portion of insulation between the moving part and the heating tube type cooler.

Likewise, it is possible to have the heating tube type cooler equipped with a spring type damper element. Taking such a constitution, the vibration system of the batteries can be considered as a vibration system separate from the equipment, the design work for the vibration proof construction can be carried out easily, and, therefore, the effect of the Vibration proof design can be achieved exactly. Also, an elastic material can be used for the guide rails. By taking such a constitution, the vibrations that are transferred from the frame to the stack can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS A more complete appreciation of the present invention and many of its inherent advantages will be readily obtained as best understood with reference to the following detailed description, when considered in connection with the accompanying drawings, in which: Figure 1 is a drawing showing a schematic elevation view of a prior art electric power converter; Figure 2 is a drawing showing a schematic elevation view and the side view of an electric power converter, according to the first embodiment of the present invention; Figure 3 is a drawing showing a schematic elevation view and side view of a heating tube type cooler, according to the third embodiment of the present invention; Figure 4 is a drawing showing a schematic elevation view and the side view of a heating tube type cooler, according to the fourth embodiment of the present invention; Figure 5 is a drawing showing a schematic elevation view and the side view of a heating tube type cooler, according to the fifth embodiment of the present invention; Figure 6 is a drawing showing a schematic elevation view and the side view of a heating tube type cooler, according to the sixth embodiment of the present invention; Figure 7 is a drawing showing a schematic elevation view and the side view of a heating tube type cooler, according to the seventh embodiment of the present invention; Figure 8 is a drawing showing a schematic elevation view and the side view of a heating tube type cooler, according to the eighth embodiment of the present invention; Figure 9 is a drawing showing a schematic elevation view and the side view of a heating tube type cooler, according to the eighth embodiment of the present invention; and Figure 10 is a drawing showing a schematic elevation view and an electrical converter, according to the tenth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, in which like reference numbers designate identical or corresponding parts throughout the various views, and, more particularly, to their Figure 2, one embodiment of the present invention will be described. First Mode The electric power converter, according to the first embodiment of the present invention, will be described below with reference to FIG. 2. FIG. 1 (a) is a drawing showing a schematic elevation view and FIG. (b) is a drawing showing a side view of the first embodiment. In the electric power converter 10, according to this embodiment, a cooler 5, of the heating tube type, is provided with a moving part 3, such as a moving pulley, through the insulation part 4, which is placed in a vertically hung condition, having the mobile pulley in contact with the guide rails 2 provided on the auxiliary frames IB for mounting the heating tube type cooler, and a plurality of semiconductor devices 8 for electric power and a plurality of coolers, of the above-mentioned heating tube type, are connected to form the cells 6. Also, this power converter 10 comprises the lower parts of the cells 6 and the conductors and the other electrical parts 7, which are located in the main frame IA, placed under the auxiliary frame IB. As the configuration in the depth direction of the equipment is not affected by the configuration of the heating tube type coolers, placing the heating tube type cooler 5 vertically, as described above, and likewise, as not It requires having a construction where the chillers are stacked, the total system can be made compact and simply constructed. Meanwhile, as the chillers do not stack, according to the construction, it is possible to obtain good cooling efficiency and equipment can be made, which is excellent from the point of view of the thermal technique.

Also, it is possible to locate the electric parts 7, such as the conductors, capacitors, etc., in a group under the stack 6, the total system can be made compact and the construction can be simplified. Likewise, as the cooler 5, of the heating tube type, can move freely on the rails 2, installed in the auxiliary frame by the mobile part, such that the pulley moves through the insulation part 4, which are provided with the cooler, the job of building batteries 6 can be simple facts. Also, since the heating tube type coolers 5 are placed in a hanging condition, each heating tube type cooler 5 is placed vertically by its own weight. When a plurality of semiconductors for electric power 8 are connected and pressed by an assembly, etc., to form a stack 6 in this manner, such as the work to align the respective element centers to press the surfaces of the elements uniformly, it can be simplified and labor can be saved. In the meantime, the material configuration for the moving part 3 and the configuration and material for the guide rails 2 are not restricted.

Second Mode In the following, the electric power converter is described, according to the second embodiment of the present invention. The schematic construction of this embodiment may be the same as that shown in Figure 2. However, the main frame, which involves the bottom part of the stack 6 (portion that mainly comprises the bottom part of the heat receiving part). of the cooler 5 of heating pipe and the semiconductors for electric power 8) and electrical parts 7, will be of closed type and an insulating gas, such as SFg, will be filled in the frame. However, the auxiliary frame IB, in which the heating tube type cooler is placed, it is not necessary to be closed type. It can be a construction in which the cooler 5, of the heating tube type, can be positioned and in which the guide rails 2 can be installed in the upper part. And, when the main frame IA is made of a metal, insulation is provided between the heat pipe and the upper surface of the main frame IA, where the heating pipes of the cooler 5, of that type, pass through the surface superior of the main frame ÍA. In this embodiment, the main frame IA, in which the electrical parts 7 are placed, is of a cubicle construction, in which an insulating gas, such as the SFs, is filled. As the electric field strength is reduced and the resistance to the voltage can be increased using an insulation gas. Therefore, the space for the electrical parts 7 can be saved and the total system can be designed in compact form. In addition, according to the insulation gas, this gas is not limited to SF6. Next, the third to ninth modes will be described, which refer to a heating tube type cooler for electric power converters.

Third Mode The cooler, of the heating tube type, for an electric power converter, according to the third embodiment of the present invention is described with reference to FIG. 3. FIG. 3 (a) is a drawing showing a view schematic in elevation and figure 3 (b) is the drawing showing the side view of the third embodiment. A cooler, of the heating tube type, according to this embodiment, comprises a moving part 3, the insulation part 4, the heat receiving part 11, heating tubes 12 and radiation fins 13.

In this embodiment, the front side of the radiator fins of the cooler, of the heating tube type, of the prior art, are tilted downwards, and the rear flank of the fins is tilted upwards and the fins form a guide 14, as shown in figure 3. In this way, as shown by the arrow in figure 2 (b), the air flows from below and extracts the heat from the radiation fins, provided with the guide 14 and the cooling. Thus, the cooler, of the heat pipe type, can be installed vertically. As the configuration of the radiation fins 13 includes the guide 14, it is preferable to make the horizontal part as short as possible in order to prevent the accumulation of heat in the radiation part. Therefore, the configuration of the heat pipes 12 is not tube-shaped, but rather a thin plate, so that the horizontal portion may become shorter. When the inclination of the guide 14 of the horizontal direction is smaller, the spatial efficiency is better, but the air flow resistance becomes greater, and the cooling efficiency becomes low due to the stagnation of the air flow between the two. 13 radiation fins. Therefore, taking the spatial efficiency into consideration, the inclination of the horizontal direction, between 25-352, may be appropriate, but this angle is not restricted.

Fourth Mode The cooler, of the heating tube type, for the electric power converter, according to the fourth embodiment of the present invention, is described with reference to FIG. 4. FIG. 4 (a) is a drawing showing a schematic view in elevation and figure 4 (b) is a drawing showing the side view of the cooler, of the heating pipe type, according to the fourth embodiment of the present invention. This cooler, of the heating pipe type, according to this embodiment, comprises a moving part 3, an insulation part 4, a heat receiving part 11, a heating pipe 12 and radiation fins 13, in which the configuration of these radiator fins 13 of the heating tube type cooler are tilted, as shown in Figure 4 (b). In this way, air flows from the bottom, as indicated by an arrow in the drawing. The air extracts the heat from the fins 13 and cooling takes place. When the inclination of the radiation fins 13 from the horizontal direction is smaller, the spatial efficiency is better, but the resistance to air flow becomes greater, the cooling efficiency becomes low due to the stagnation of the air flow between the radiation fins 13. Therefore, taking the spatial efficiency into consideration, the inclination of the horizontal direction, between approximately 20-352, may be appropriate, but this angle is not restricted.

Fifth Mode The cooler, of the heating tube type, for the electric power converter, according to the fifth embodiment of the present invention, is described with reference to FIG. 5. FIG. 5 (a) is a drawing showing a schematic view in elevation and figure 5 (b) is a drawing showing the side view of the cooler, of the heating tube type, according to the fifth embodiment of the present invention. This cooler, of the heating tube type, according to this modality, is the same as that of the third and fourth embodiments, shown in Figures 3 and 4, however, the cooler, of the heating tube type, is provided with side walls 14. As the stack comprising the cooler, of type heating tube and semiconductor devices for electric power, are hung from the frame, in this electric power converter, through the constructive load, imposed on the cooler, heating tube type, is large, the increase of the Constructive resistance of the stack can be realized as the radiation fins are supported by the side walls 14. Likewise, in the case that the plurality of piles are arranged side by side, as the direction of the air flow at the inlet and outlet is restricted by the side walls 14 for the respective stacks, the cooling efficiency can be increased.

Sixth Mode The cooler, of the heating tube type, for an electric power converter, according to the sixth embodiment of the present invention, is described with reference to FIG. 6. FIG. 6 (a) is a drawing showing a schematic view of the cooler plant, of the heating tube type, according to the sixth embodiment of the present invention. The chiller, of the heating tube type, according to this embodiment, is one comprising the heat receiving part 11 and a plurality of heating tubes 12, without radiation fins. Since the cooler, of the heating tube type, is of a construction without radiation fins, the cooling efficiency is not affected by the arrangement and, therefore, any arrangement can be accepted. Likewise, in order to obtain sufficient radiation area, it will be more efficient to use the cross-section star heating tubes. The number of heating pipes and their sectional configuration are not restricted. Likewise, although the cooler of the heating tube type, which comprises a plurality of lines, has a plurality of heating pipes 12, as shown in Figure 6, the cooler, of the heating pipe type, may comprise a Single line of heating pipes only. Although not shown in the drawing, from the point of view of the construction of the electric power converter, also in the case of this type of heating tube type cooler, a vertical arrangement, as shown in FIGS. 4 and 5, can be adopted by the supply of a moving part and an isolation part in the upper part of the cooler.

Seventh Mode The cooler, of the heating tube type, for an electric power converter, according to the seventh embodiment of the present invention, is described with reference to FIG. 7. FIG. 7 (a) is a drawing showing a schematic view in elevation and figure 7 (b) is a drawing showing the side view of the cooler, of the heating tube type, according to the seventh embodiment of the present invention. The cooler, of the heating tube type, according to this embodiment, is one provided with the fins 13, which comprises a plurality of spike-type projections. Due to a plurality of fins 13, of the spike type, the heating effect is not affected by the arrangement and, therefore, any arrangement proposal can be accepted. Likewise, in the case that the cooler, of the heating tube type, is arranged vertically, that is, the pins are arranged horizontally, it is effective for cooling, if the cross section of the pins becomes oval with the apse lines vertically , while taking the resistance of the air flow into consideration. Thus, the number of pins and the cross section of the pins are not restricted. Although not in the drawing, from the point of view of the construction of the electric power converter, also in the case of this type of heating tube type cooler, a vertical arrangement, as shown in FIGS. 4 and 5, can be adopted by the supply of a moving part and an isolation part in the upper part of the cooler.

Eighth Mode The cooler, of the heating tube type, for an electric power converter, according to the eighth embodiment of the present invention, is described with reference to FIGS. 8 and 9. FIG. 8 is a drawing showing a view. Schematic perspective of the cooler, of the heating tube type, according to the eighth embodiment of the present invention. Figure 9 (a) is a drawing showing a schematic plan view and figure 9 (b) is a drawing showing an elevation view of the cooler, of the heating pipe type, according to the eighth embodiment of the present invention. The cooler, heating tube type, of this embodiment, is one provided with radiation fins 13, which are arranged in the same direction as the heating pipes. As the radiation fins 13 are arranged vertically in the same direction as the heating pipes, for example, as shown in Figure 8, the cooling effect is not affected dangerously, since the stagnation of the air flow takes place between the radiation fins, you can get a good cooling effect. Also, as shown in Figure 8, the transverse radiation fins 13b can be disposed between the vertical radiation fins 13a, so that the radiation area can be enlarged and the cooling efficiency can be increased further. Thus, the arrangement of the radiation fins is not restricted by these arrangements. Although not shown in the drawing, from the point of view of the construction of the electric power converter, also in the case of this type of heating pipe type cooler, a vertical arrangement, as shown in FIGS. 4 and 5, can be adopted by the supply of a moving part 3 at the top of the cooler.

Ninth Modality Next, the heating tube type cooler for an electric power converter, according to the ninth embodiment of the present invention, will be described.

This embodiment refers to a cooler, of the type of heating pipe, for an electrical power converter, in which an insulated heating pipe type cooler is used, which is not shown in the drawing. In the case of an insulated cooler, of the heating tube type, the heat receiving part is separated from the heat radiation part electrically and a coolant, which has a higher insulation resistance than water, is used. Specifically, in the heating tube type cooler, the heat receiving part and the heat radiation part are connected with glass tubes, through which a coolant, such as the per-fluorocarbon, flows. The aforementioned insulating part 4 can be eliminated using an insulated, heating tube type cooler. Likewise, errors in dimension can be reduced at the time of assembly.

Tenth Modality Next, the electric power converter, according to the tenth embodiment of the present invention, will be described with reference to FIG. 10. FIG. 10 (a) is a drawing showing a schematic elevation view of a cooler. of the heating tube type, according to a tenth embodiment of the present invention, and FIG. 10 (b) is a drawing showing the schematic side view of the electric power converter with the cooler, of the heating tube type, aforementioned. In this embodiment, the heating tube-type cooler 5 is provided with an elastic damping element (factor) 15. The stack comprises a heating tube type cooler 5 and a semiconductor electrical power device, and the conductor for the connection to the outside are connected by means of a flat woven conductor 16, so that the cooler is not fixed to the frame 1 directly. Taking such construction, the system of vibrations of a battery, which includes the semiconductors, which are more fragile by the vibration in the transport and earth tremors, can be considered separately from the system of vibrations of the main equipment itself. In case the total equipment is considered as a vibration system, as in the case of the prior art, the design work has to be carried out by taking the complicated vibration system comprising all the elements under consideration. However, in the aforementioned case, the object for the vibration-proof design becomes a relatively simple vibration system, so the vibration-proof design becomes easy and the effect of the design is proof-of-concept. Exactly vibrations can be achieved. Also, using elastic materials, such as shock-proof rubber, for the moving part 3 and the guide rail 2, or by applying an elastic material to the moving part 3 and the guide rail 2, the vibrations transferred from the frame 1 to the stack can be prevented. However, the material and configuration for the elastic damping element (factor) are not restricted. As for electric power converters, where the cooling is executed by natural convection, according to the present invention, it is possible to supply an electric power converter, in which the compact design is realized, since the cooler, of the tube type of heating, can be arranged vertically, also the electrical parts can be installed as a package, and thus the total construction of the equipment can be simplified. Likewise, it is possible to supply an electric power converter, which is shockproof for transport vibrations or ground shaking, adopting the design that the battery, which comprises the main circuits, such as semiconductors, and the cooler, of the heating tube type, do not attach to the frame directly, and preventing the vibrations of the main circuits by means of the spring elastic cushioning system, located between the stack and the main equipment. Obviously, numerous additional modifications and variations of the present invention are possible in light of the above teachings. Therefore, it will be understood that, within the scope of the appended claims, the present invention may be practiced in another manner than that especially described herein.

Claims (15)

1. An electrical power converter, which comprises: a battery of semiconductor electrical power devices and a cooler, of the heating tube type, arranged vertically, to cool these devices and electric power semiconductors; and electrical parts, which are placed under the stack and include a conductive element for connection to the outside.

2. An electrical power converter, which comprises: a battery of electric power semiconductor devices, and a heating tube type cooler, arranged vertically, to cool the semiconductor electrical power devices; a movable part, which is placed on the cooler, of the heating tube type, and can be moved along a guide rail, provided in a frame, in which the stack is contained; and electrical parts, which are placed under the stack and include a conductive element for connection to the outside.

3. An electric power converter, according to claim 1 or claim 2, wherein: the electric parts, which include at least one conductor for connection to the outside, are contained in a closed container, filled with an insulating gas.

4. An electric power converter, according to claim 1 or claim 2, wherein: the cooler, of the heating tube type, is provided with radiation fins, provided with a portion, which slopes downwardly at the inlet of air, and a portion, which inclines upwards, in the air outlet.

5. An electric power converter, according to claim 1 or claim 2, wherein: the cooler, of the heating tube type, is provided with radiation fins disposed inclined to the heating pipes.

6. An electric power converter, according to claim 4 or claim 5, in which: the radiator fins of the cooler, of the heating tube type, are provided with side walls to restrict air flow.

7. An electric power converter, according to claim 1 or claim 2, in which: the cooler, of the heating tube type, comprises a plurality of heating tubes, which are not provided with radiation fins.

8. An electric power converter, according to claim 1 or claim 2, in which: the cooler, of the heating tube type, is provided with a plurality of tang configuration fins.

9. An electric power converter, according to claim 1 or claim 2, wherein: the radiator fins of the cooler, of the heating tube type, are arranged vertically.

10. An electric power converter, according to claim 1 or claim 2, in which: a part that receives heat from the cooler, of the heating tube type, is electrically isolated from the part that radiates heat and the cooler is an insulated cooler , of the type of heating tube, in which a refrigerant is used, in which the insulation resistance is greater than that of the water.

11. An electric power converter, according to claim 1 or claim 2, wherein: the cooler, of the heating tube type, is provided with an elastic damping element.

12. An electric power converter, according to claim 2, in which: the guide rails are provided with an elastic material.

13. A cooler, of the heating tube type, for an electric power converter, in which: the heating pipes are not provided with radiation fins.

14. A cooler, of the heating tube type, for an electrical power converter, in which: the radiation fins are provided with a plurality of fins with pin configuration.

15. A cooler, of the heating tube type, for an electric power converter, in which: the radiation fins are arranged in the same direction as the heating pipes.