CN214900620U - Electric locomotive frequency converter with liquid cooling heat dissipation structure - Google Patents
Electric locomotive frequency converter with liquid cooling heat dissipation structure Download PDFInfo
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- CN214900620U CN214900620U CN202120736513.4U CN202120736513U CN214900620U CN 214900620 U CN214900620 U CN 214900620U CN 202120736513 U CN202120736513 U CN 202120736513U CN 214900620 U CN214900620 U CN 214900620U
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Abstract
The utility model discloses an electric locomotive converter from area liquid cooling heat radiation structure, including converter box 1, electrical components 2, heating panel 40, cooling liquid 30, converter box 1 includes curb plate 3, and electrical components 2 equipment is in one side of the curb plate 3 of converter box 1, and heating panel 40 connects the opposite side at the curb plate 3 of converter box 1, has the storage between curb plate 3 of converter box 1 and heating panel 40 the stock solution space of cooling liquid 30. The cooling liquid 30 stored between the side plate 3 of the frequency converter box body 1 and the heat dissipation plate 40 may be a cooling liquid that does not circulate with the outside, and the side plate 3 of the frequency converter box body 1 or the heat dissipation plate 40 may be provided with a liquid inlet 20 and a liquid outlet 10, and the cooling liquid 30 is connected with an external liquid storage tank by utilizing heat self-circulation or external power to realize circulation heat dissipation. The frequency converter housing 1 can be connected to the electric locomotive housing plate 50 via the heat dissipation plate 40.
Description
Technical Field
The invention relates to the technical field of electric locomotives, in particular to an electric locomotive frequency converter with a liquid cooling heat dissipation structure.
Background
In the mine transportation equipment, an electric locomotive is the main equipment for mine transportation in China at present and is mainly used for hauling a mine car group, transporting minerals, equipment and personnel. In the electric locomotive, a frequency converter is a main frequency conversion speed regulation control component, and the frequency converter changes the rotating speed of a motor by changing the working frequency of a matched motor so as to realize the functions of stable starting, stepless speed regulation, stopping braking and the like of the electric locomotive.
For the frequency converter, heat dissipation is an important factor influencing the performance and the service life of the frequency converter, and particularly for core electrical components of the frequency converter, the reliability and the safety performance of the electrical components can be improved by controlling the temperature. One of the existing frequency converter heat dissipation modes of the electric locomotive is a heat pipe heat dissipation mode, the heat pipe heat sink can basically meet the requirement of temperature rise for a low-power frequency converter, but the heat sink has large volume and high material and manufacturing cost, so that the structure of the frequency converter is heavy, the frequency converter with the structure is arranged in a cab of the electric locomotive with limited space, the electric locomotive is crowded, the assembly and the maintenance are inconvenient, and the driving operation is uncomfortable; the other is that the thick copper plate is assembled on the rear side of the frequency converter, and then the frequency converter and the copper plate are assembled on the electric locomotive box body together. With the development of large-tonnage locomotives and high-power frequency converters, when the power of a motor and the power of the frequency converter matched with an electric locomotive reach certain capacities, the heat pipe radiator can meet the requirement of heat dissipation of the frequency converter, but the volume of the whole frequency converter is larger due to the overlarge volume of the radiator, so that the radiator cannot be assembled in a cab of the electric locomotive with limited space; the cooling effect of the copper plate radiator can not meet the heat dissipation requirement of the high-power frequency converter, so that the heat inside the frequency converter can not be dissipated in time, the temperature inside the frequency converter and electrical components are too high, and the performance and the service life of the frequency converter are influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an electric locomotive frequency converter with a liquid cooling heat dissipation structure, which has the advantages of small size, low cost, large heat dissipation area and good heat dissipation effect.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an electric locomotive converter from taking liquid cooling heat radiation structure, includes the converter box, electrical components, the heating panel, cooling liquid, the converter box includes curb plate, its characterized in that: the electric appliance element is assembled on one side of the side plate of the frequency converter box body, the heat dissipation plate is connected to the other side of the side plate of the frequency converter box body, and a liquid storage space for storing the cooling liquid is arranged between the side plate of the frequency converter box body and the heat dissipation plate.
Foretell electric locomotive converter from taking liquid cooling heat radiation structure, its further characterized in that: the cooling liquid stored between the side plate of the frequency converter box body and the radiating plate is cooling liquid which is not circulated with the outside.
Foretell electric locomotive converter from taking liquid cooling heat radiation structure, its further characterized in that: the side plate of the frequency converter box body or the heat dissipation plate is provided with a liquid inlet and a liquid outlet, and the cooling liquid is connected with an external liquid storage tank by utilizing heat self-circulation or external power to realize circulation heat dissipation.
Foretell electric locomotive converter from taking liquid cooling heat radiation structure, its further characterized in that: the frequency converter box bodies are connected to the electric locomotive body together through the heat dissipation plate.
Foretell electric locomotive converter from taking liquid cooling heat radiation structure, its further characterized in that: the cooling liquid dissipates heat for electrical elements, and disperses heat again through the cooling liquid, so that the heat dissipation area is enlarged.
Has the advantages that:
1. this kind of liquid cooling heat radiation structure of electric locomotive converter both usable cooling liquid heat dissipation, but the mobility of usable cooling liquid disperses the heat once more again, enlarges heat radiating area, and the radiating effect is good to improve the performance and the life of converter.
2. Compared with the traditional heat pipe heat dissipation structure, the liquid cooling heat dissipation structure of the electric locomotive frequency converter has the advantages of small volume, low material and manufacturing cost and convenient assembly, maintenance and repair; compared with a copper plate heat dissipation structure, the heat dissipation structure has low cost, is suitable for large-tonnage locomotives and high-power frequency converters, and can meet the heat dissipation requirements of high-power direct-drive motors and frequency converters for motor vehicles.
3. This kind of liquid cooling heat radiation structure of electric locomotive converter can be with converter and electric locomotive car body coupling structure as an organic whole, when reduce cost, small, exterior structure is pleasing to the eye, utilizes the automobile body heat dissipation of electric locomotive, has increased heat radiating area, and the radiating effect is good.
4. This kind of cooling liquid among liquid cooling heat radiation structure for electric locomotive converter can be for not with external endless liquid, utilize cooling liquid from dispelling the heat, also can be endless liquid, utilize the cooling liquid in the space and outside liquid container formation heat self-loopa, or use outside power to make the cooling liquid in the space and outside liquid container circulation heat dissipation, the heat dissipation is better with the cooling effect.
Drawings
Fig. 1 is a front view structural diagram of a frequency converter for an electric locomotive.
Fig. 2 is a schematic structural diagram of a heat pipe radiator of a frequency converter for a conventional electric locomotive.
Fig. 3 is a schematic structural diagram of an electric locomotive frequency converter with a liquid cooling heat dissipation structure.
Fig. 4 is a schematic structural view of the electric locomotive frequency converter with the liquid cooling heat dissipation structure assembled on the electric locomotive body.
Wherein, 1 is a frequency converter box body; 2 is an electrical element; 3 is a side plate; 4 is a heat pipe radiator; 10 is a liquid outlet; 20 is a liquid inlet; 30 is a cooling liquid; 40 is a heat dissipation plate; 50 is the electric locomotive body.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Fig. 1 is a front view structural diagram of a frequency converter for an electric locomotive. And electrical components in the frequency converter are assembled on a side plate inside the frequency converter box body.
Fig. 2 is a schematic structural diagram of a heat pipe radiator of a frequency converter for a conventional electric locomotive. At present, an electric element of a commonly-used electric locomotive frequency converter is assembled inside a frequency converter box body, a heat pipe radiator is assembled on a rear side plate of the frequency converter, a base plate of the heat pipe radiator is a copper plate, an oil pipe and a copper plate are embedded on the copper plate, the heat pipe radiator is high in material cost, complex in machining process and large in appearance volume.
Fig. 3 is a schematic structural view of an electric locomotive frequency converter with a liquid cooling heat dissipation structure according to the present invention, and the electric locomotive frequency converter with a liquid cooling heat dissipation structure according to the present embodiment includes a frequency converter box 1, an electrical component 2, a heat dissipation plate 40, and a cooling liquid 30, where the frequency converter box 1 includes a side plate 3, the electrical component 2 is assembled on one side of the side plate 3 of the frequency converter box 1, the heat dissipation plate 40 is connected to the other side of the side plate 3 of the frequency converter box 1, and a liquid storage space for storing the cooling liquid 30 is provided between the side plate 3 of the frequency converter box 1 and the heat dissipation plate 40. The heat of the electrical component 2 is transferred to the cooling liquid 30 through the side plate 3 of the frequency converter, the cooling liquid 30 dissipates the heat of the electrical component 2, meanwhile, the cooling liquid 30 can disperse the heat and transfer the heat to the heat dissipation plate 40, and the heat dissipation plate 40 can dissipate the heat of the electrical component 2 again, so that the heat dissipation area is enlarged.
The side plate 3 of the frequency converter box body 1 and the heat dissipation plate 40 can be connected through welding, or bonding, or a bolt pressing structure, the formed liquid storage space is a closed or semi-closed space, and the liquid storage space can be a whole empty structure or a structure with heat dissipation pipelines arranged in the space.
The cooling liquid 30 that stores between curb plate 3 and the heating panel 40 of converter box 1 can be not with external endless cooling liquid, utilize cooling liquid self to dispel the heat, also can be equipped with inlet 20 and liquid outlet 10 on curb plate 3 or the heating panel 40 of converter box 1, utilize the cooling liquid in the space and outside liquid container formation heat self-loopa, or use outside power to make cooling liquid 30 and outside liquid container circulation heat dissipation in the space, this can prevent that the cooling liquid from lasting the intensification, the radiating effect is better.
In the low-power frequency converter, because the heat dissipation capacity of the electrical element 2 of the frequency converter is small, the cooling liquid 30 can not circulate with the outside, and the structure can meet the heat dissipation requirement of the electrical element 2 by utilizing the self-heat dissipation of the cooling liquid 30; in the high-power frequency converter, because the heat dissipation capacity of the electrical component 2 is large, the heat dissipation plate 40 can be provided with the liquid inlet 20 and the liquid outlet 10, the cooling liquid in the space and the external liquid container form heat self-circulation, or the cooling liquid 30 in the space and the external liquid container are circularly dissipated by using external power, the heat dissipation effect is good, and the continuous temperature rise of the cooling liquid can be prevented.
Fig. 4 is a schematic structural diagram of the electric locomotive frequency converter with the liquid cooling heat dissipation structure assembled on the electric locomotive case plate. The electric element 2 is assembled inside the side plate 3 of the frequency converter, the heat radiation plate 40 is arranged outside the side plate 3, and the frequency converter box body 1 is connected to the body of the electric locomotive through the heat radiation plate 40. The cooling liquid 30 has been stored between the curb plate 3 and the heating panel 40 of converter, the heat of electrical components 2 passes through the curb plate 3 transmission of converter to cooling liquid 30 in, cooling liquid 30 is the heat dissipation of electrical components 2, cooling liquid 30 can be through the mobility dispersion heat of self to heat transmission to heating panel 40 simultaneously, heating panel 40 and electric locomotive automobile body 50 closely laminate, heating panel 40 and electric locomotive automobile body 50 can be electrical components 2 heat dissipation capacity once more. In this structure, the cooling liquid 30 may be a self-heat-dissipating structure that does not circulate with the outside, or may be a dynamic circulation heat-dissipating structure.
The electrical element 2 transfers heat to the heat dissipation plate 40 through the side plate 3 of the frequency converter and the cooling liquid 30, the heat dissipation plate 40 transfers the heat to the electric locomotive body 50 attached with the heat dissipation plate 40 again, and the electric locomotive body has larger area, so that the heat dissipation area is enlarged, and the heat dissipation effect is good. The cooling liquid 30 can not only dissipate heat from the electrical component 2, but also re-dissipate heat from the electrical component 2 by the flow characteristics of the liquid, thereby enlarging the heat dissipation area. The heat dissipation effect is good because the electrical elements are radiated again by cooling liquid.
The above-mentioned embodiments are merely illustrative of the present invention, and not restrictive, and it should be understood that various changes and modifications in the spirit and scope of the invention may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides an electric locomotive converter from taking liquid cooling heat radiation structure, includes the converter box, electrical components, the heating panel, cooling liquid, the converter box includes curb plate, its characterized in that: the electric appliance element is assembled on one side of the side plate of the frequency converter box body, the heat dissipation plate is connected to the other side of the side plate of the frequency converter box body, and a liquid storage space for storing the cooling liquid is arranged between the side plate of the frequency converter box body and the heat dissipation plate.
2. The electric locomotive frequency converter with the liquid-cooled heat dissipation structure according to claim 1, wherein: the cooling liquid stored between the side plate of the frequency converter box body and the radiating plate is cooling liquid which is not circulated with the outside.
3. The electric locomotive frequency converter with the liquid-cooled heat dissipation structure according to claim 1, wherein: the side plate of the frequency converter box body or the heat dissipation plate is provided with a liquid inlet and a liquid outlet, and the cooling liquid is connected with an external liquid storage tank by utilizing heat self-circulation or external power to realize circulation heat dissipation.
4. The electric locomotive frequency converter with the liquid-cooled heat dissipation structure according to claim 1, wherein: the frequency converter box bodies are connected to the electric locomotive body together through the heat dissipation plate.
5. The electric locomotive frequency converter with the liquid-cooled heat dissipation structure according to claim 1, wherein: the cooling liquid dissipates heat for electrical elements, and disperses heat again through the cooling liquid, so that the heat dissipation area is enlarged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120736513.4U CN214900620U (en) | 2021-04-12 | 2021-04-12 | Electric locomotive frequency converter with liquid cooling heat dissipation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120736513.4U CN214900620U (en) | 2021-04-12 | 2021-04-12 | Electric locomotive frequency converter with liquid cooling heat dissipation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214900620U true CN214900620U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120736513.4U Active CN214900620U (en) | 2021-04-12 | 2021-04-12 | Electric locomotive frequency converter with liquid cooling heat dissipation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214900620U (en) |
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2021
- 2021-04-12 CN CN202120736513.4U patent/CN214900620U/en active Active
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