CN216564894U

CN216564894U - Traction converter

Info

Publication number: CN216564894U
Application number: CN202122382306.6U
Authority: CN
Inventors: 王浩城; 焦毕; 林珍君; 姚伍军; 周万龙; 王佳丽; 梁开伟; 孙石林
Original assignee: Zhuzhou CRRC Times Electric Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-05-17
Anticipated expiration: 2031-09-29

Abstract

The utility model provides a traction converter, which comprises a cabinet body, wherein a fan cavity used for arranging a fan is arranged in the cabinet body, module chambers used for arranging converter module components are symmetrically arranged on two sides of the fan cavity, an air inlet communicated with the module chambers is formed in the top of the cabinet body, a ventilation channel communicated with the bottom of the module chambers is formed in the bottom of the fan cavity, a reactor chamber used for arranging a reactor is arranged in the cabinet body at a position opposite to the fan cavity, a ventilation channel capable of being communicated with the side of the fan cavity is formed in the side of the reactor chamber, and an air outlet communicated with the reactor chamber is formed in the cabinet body. The traction converter provided by the utility model can improve the integration degree of the box body, ensure good heat dissipation performance of a power device, reduce the overall weight of the converter, reduce the cost and reduce the layout difficulty of running parts at the bottom of the whole vehicle.

Description

Traction converter

Technical Field

The utility model relates to the technical field of rail transit equipment, in particular to a traction converter.

Background

The not high and radiating effect of electrical part of the degree of integration that has pull the dc-to-ac converter still remains to promote to the mounting means that the crossbeam was hung or was held in the palm dress is adopted to cabinet body overall arrangement most under the present urban rail train car, and the mode of cabinet body lug taking the crossbeam earlier and overlap joint at the automobile body boundary beam again promptly causes heavy, and is with high costs, and it is big to walk the overall arrangement degree of difficulty of part under the whole car vehicle bottom.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a traction converter, which can improve the integration degree of a box body, ensure good heat dissipation performance of a power device, reduce the overall weight of the converter, reduce the cost and reduce the layout difficulty of running parts at the bottom of a whole vehicle.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

the utility model provides a traction converter, the intelligent cabinet temperature adjusting device comprises a cabinet body, wherein, the internal fan chamber that is used for arranging the fan that is equipped with of cabinet, the bilateral symmetry in fan chamber is equipped with the module room that is used for arranging converter module, cabinet body top is equipped with the air intake with the module room intercommunication, fan chamber bottom is equipped with the ventiduct with module room bottom intercommunication, the internal position relative with the fan chamber of cabinet is equipped with the reactor room that is used for arranging the reactor, reactor room lateral part is equipped with the ventiduct that can communicate with fan chamber lateral part, be equipped with the air outlet with reactor room intercommunication on the cabinet body.

According to the traction converter, the high-power device is close to the periphery of the fan cavity so as to reduce the air channel path and increase the heat dissipation power, the fan is taken as the center, the two converter module assemblies are symmetrically arranged on the left and right of the fan, cold air enters the cabinet body module chamber from the top of the cabinet body, and heat is brought into the fan cavity by utilizing the fan draft principle. After continuous pumping, a pressure difference is formed between the fan cavity and the reactor chamber, heat enters the reactor chamber from the fan cavity, and finally cold air is exhausted out of the cabinet body through an air outlet below the reactor chamber of the cabinet body after absorbing the module heat and the reactor heat. Therefore, through reasonable space design layout, the integration degree of the box body can be improved, meanwhile, the situation that the high-power device is tightly arranged around the fan cavity is considered, the air channel path is reduced, and the heat dissipation efficiency is improved.

With respect to the above technical solution, further improvements as described below can be made.

According to the traction converter, in a preferred embodiment, the air inlet is located at the top of the cabinet body and corresponds to the module chamber, and the air outlet is located at the bottom of the cabinet body and corresponds to the reactor chamber.

Through the above arrangement mode, the reduction of air channel paths can be further ensured, and the heat dissipation efficiency is improved.

Further, in a preferred embodiment, a module heat sink is provided on the converter module assembly.

Each module assembly has a heat sink for heat exchange, and the heat dissipation efficiency can be greatly increased.

In particular, in a preferred embodiment, the module heat sink comprises an aluminum profile heat sink fin member.

The heat dissipation device with the structure is convenient to arrange on the converter module, simple and light in structure, convenient to arrange and high in heat dissipation efficiency.

Further, in a preferred embodiment, one side of the reactor chamber opposite to the module chamber is provided with a DCU control cabinet chamber for arranging the DCU control cabinet, the circuit breaker of the internal circulation machine, and the circuit breaker of the forced air blower.

By controlling the cabinet room through the reasonable layout of the DCU (drive Control Unit), the integration degree of the cabinet can be further improved.

Further, in a preferred embodiment, the reactor chamber is provided with a charging short-circuit chamber on the side opposite the module chamber for arranging the charging contact, the short-circuit contact and the charging resistor.

Through the short circuit room that charges of above-mentioned rational overall arrangement, can effectively realize the precharge to supporting capacitor, and can further promote the degree of integrating of box. In particular, in a preferred embodiment, the assembly of converter modules on both sides of the fan cavity is identical.

The same converter module assemblies are arranged on the two sides of the fan cavity, so that the production and manufacturing process can be further simplified, and the cost is saved.

Further, in a preferred embodiment, the two sides of the cabinet body are symmetrically provided with mounting positions matched with the edge beams of the vehicle body.

Through directly fixed with the cabinet body and the installation of automobile body boundary beam, compare the lug among the prior art and take the crossbeam earlier and overlap joint at the mounting means of automobile body boundary beam again, can reduce weight, reduce cost, reduce whole car vehicle bottom simultaneously and walk the layout degree of difficulty of parts, effectively avoid the problem of vehicle bottom limit restriction simultaneously.

In particular, in a preferred embodiment, the mounting location comprises a shackle structure.

The lifting lug structure is convenient to install, simple in structure and easy to process.

In particular, in a preferred embodiment, the mounting location comprises a mounting structure.

Similarly, the supporting structure is convenient to mount, simple in structure and easy to process.

In particular, in a preferred embodiment, a centrifugal fan is provided within the fan chamber.

Centrifugal fan can further guarantee to promote the radiating efficiency.

Further, in a preferred embodiment, the air inlet and the air outlet are provided with filter screens.

The air purification device has the advantages that the air purification device can play a good role in purifying air by arranging the filter screens at the air inlet and the air outlet, so that the air duct is prevented from being polluted.

Compared with the prior art, the utility model has the advantages that: the integration degree of the box body can be improved, the good heat dissipation performance of the power device can be guaranteed, the overall weight and the cost of the converter can be reduced, and the layout difficulty of the walking part at the bottom of the whole vehicle can be reduced.

Drawings

The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the drawings. Wherein:

FIG. 1 is a schematic view showing a layout structure of a train car bottom in the embodiment of the utility model;

fig. 2 schematically shows the overall structure of a current transformer of an embodiment of the present invention;

fig. 3 schematically shows a top view of a current transformer according to an embodiment of the utility model;

fig. 4 schematically shows a part of the flow direction of the cooling air in the current transformer according to the embodiment of the present invention;

fig. 5 schematically shows another part of the flow direction of the cooling air in the current transformer in the embodiment of the present invention.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

The utility model will be further explained in detail with reference to the figures and the embodiments without thereby limiting the scope of protection of the utility model.

Fig. 1 schematically shows the layout structure of the converter 10 of the embodiment of the utility model at the bottom of a train car, wherein the direction of a horizontal arrow indicates the running direction of the train. Fig. 2 schematically shows the overall structure of a current transformer 10 according to an embodiment of the present invention. Fig. 3 schematically shows a top view of a current transformer 10 according to an embodiment of the present invention. Fig. 4 schematically shows a part of the flow direction of the cooling air in the current transformer 10 according to the embodiment of the present invention. Fig. 5 schematically shows another part of the flow direction of the cooling air in the current transformer 10 according to the embodiment of the present invention.

As shown in fig. 2 to 5, a traction converter 10 according to an embodiment of the present invention includes a cabinet 1, wherein a fan cavity 11 for arranging a fan is provided in the cabinet 1, module chambers 12 for arranging converter module assemblies are symmetrically provided on both sides of the fan cavity 11, an air inlet 13 communicated with the module chambers 12 is provided at the top of the cabinet 1, a ventilation duct communicated with the bottom of the module chambers 12 is provided at the bottom of the fan cavity 11, a reactor chamber 14 for arranging a reactor is provided at a position in the cabinet 1 opposite to the fan cavity 11, a ventilation duct capable of communicating with a side portion of the fan cavity 11 is provided at a side portion of the reactor chamber 14, and an air outlet 15 communicated with the reactor chamber 14 is provided on the cabinet 1.

According to the traction converter provided by the embodiment of the utility model, the high-power device is tightly close to the periphery of the fan cavity so as to reduce the path of an air duct and increase the heat dissipation power, the fan is taken as the center, the two converter module assemblies are symmetrically arranged on the left and right of the fan, cold air enters the cabinet body module chamber from the top of the cabinet body, and the heat is brought into the fan cavity by utilizing the draught principle of the fan. After continuous pumping, a pressure difference is formed between the fan cavity and the reactor chamber, heat enters the reactor chamber from the fan cavity, and finally cold air is exhausted out of the cabinet body through an air outlet below the reactor chamber of the cabinet body after absorbing the module heat and the reactor heat. Therefore, through reasonable space design layout, the integration degree of the box body can be improved, meanwhile, the situation that the high-power device is tightly arranged around the fan cavity is considered, the air channel path is reduced, and the heat dissipation efficiency is improved.

Further, in this embodiment, a module heat sink is disposed on the converter module assembly. Each module assembly has a heat sink for heat exchange, and the heat dissipation efficiency can be greatly increased. Specifically, in the present embodiment, the module heat sink includes an aluminum profile heat sink fin member. The heat dissipation device with the structure is convenient to arrange on the converter module, simple and light in structure, convenient to arrange and high in heat dissipation efficiency.

As shown in fig. 2 to 5, preferably, in the present embodiment, the air inlet 13 is located at the top of the cabinet 1 corresponding to the module chamber 12, and the air outlet 15 is located at the bottom of the cabinet 1 corresponding to the reactor chamber 14. Through the above arrangement mode, the reduction of air channel paths can be further ensured, and the heat dissipation efficiency is improved.

Further, as shown in fig. 2 and 3, in the present embodiment, one side of the reactor room 14 opposite to the module room 12 is provided with a DCU control cabinet room 18 for arranging a DCU control cabinet, a breaker of an internal circulation machine, and a breaker of a forced air blower. By controlling the cabinet room through the reasonable layout of the DCU (drive Control Unit), the integration degree of the cabinet can be further improved. Further, in the present embodiment, the other side of the reactor chamber 14 opposite to the module chamber 12 is provided with a charging shorting chamber 19 for arranging a charging contact, a shorting contact, and a charging resistance. Through the short circuit room that charges of above-mentioned rational overall arrangement, can effectively realize the precharge to supporting capacitor, and can further promote the degree of integrating of box.

Specifically, in the present embodiment, the converter module assemblies located at both sides of the fan cavity 11 are the same. The same converter module assemblies are arranged on the two sides of the fan cavity, so that the production and manufacturing process can be further simplified, and the cost is saved. Specifically, in the present embodiment, a centrifugal fan is provided in the fan chamber 11. Centrifugal fan can further guarantee to promote the radiating efficiency. Further, in the present embodiment, the air inlet 13 and the air outlet 15 are both provided with filter screens 17. The air can be well purified by the filter screens arranged at the air inlet and the air outlet, so that the air channel is prevented from being polluted.

As shown in fig. 1 to 5, in the present embodiment, mounting portions 16 that are engaged with the side rails of the vehicle body are symmetrically provided on both sides of the cabinet 1. Through directly fixed with the cabinet body and the installation of automobile body boundary beam, compare the lug among the prior art and take the crossbeam earlier and overlap joint at the mounting means of automobile body boundary beam again, can reduce weight, reduce cost, reduce whole car vehicle bottom simultaneously and walk the layout degree of difficulty of parts, effectively avoid the problem of vehicle bottom limit restriction simultaneously. Specifically, in the present embodiment, the mounting location 16 includes a shackle structure. The lifting lug structure is convenient to install, simple in structure and easy to process. Specifically, in one embodiment, not shown, the mounting location 16 comprises a cradle structure. Similarly, the supporting structure is convenient to mount, simple in structure and easy to process.

According to the embodiment, the traction converter can improve the integration degree of the box body, ensure good heat dissipation performance of the power device, reduce the overall weight of the converter, reduce the cost and reduce the layout difficulty of running parts at the bottom of the whole vehicle.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A traction converter is characterized by comprising a cabinet body; wherein the content of the first and second substances,

a fan cavity for arranging a fan is arranged in the cabinet body; module chambers for arranging converter module assemblies are symmetrically arranged on two sides of the fan cavity;

the top of the cabinet body is provided with an air inlet communicated with the module chamber, and the bottom of the fan cavity is provided with a ventilation channel communicated with the bottom of the module chamber;

a reactor chamber for arranging a reactor is arranged at a position opposite to the fan cavity in the cabinet body, and a ventilation channel capable of being communicated with the side part of the fan cavity is arranged on the side part of the reactor chamber;

and the cabinet body is provided with an air outlet communicated with the reactor chamber.

2. The traction converter according to claim 1, wherein the air inlet is located at a position corresponding to the module chamber on the top of the cabinet; the air outlet is located at the position, corresponding to the reactor chamber, of the bottom of the cabinet body.

3. The traction converter according to claim 1 or 2, wherein a module heat sink is provided on the converter module assembly.

4. The traction converter according to claim 3, wherein the module heat sink comprises an aluminum profile fin member.

5. The traction converter according to claim 1 or 2, wherein the converter module assemblies on both sides of the fan cavity are identical.

6. The traction converter according to claim 1 or 2, wherein the cabinet body is symmetrically provided with mounting portions on two sides thereof for forming fit with the body side rails.

7. The traction converter according to claim 6, wherein the mounting location comprises a shackle structure.

8. The traction converter according to claim 6, wherein the mounting location comprises a mounting structure.

9. The traction converter according to claim 1 or 2, wherein a centrifugal fan is arranged in the fan chamber.

10. The traction converter according to claim 1 or 2, wherein the air inlet and the air outlet are provided with a filter screen.