Traction converter integrated with vehicle body apron board

Abstract

The utility model provides a traction converter integrated with a vehicle body apron board. The traction converter comprises a shell assembly, a converter unit and a cooling unit, the shell assembly is provided with a ventilation cavity and a sealing cavity which are not communicated with each other in the front-back direction, the converter unit is installed in the sealing cavity, the cooling unit is installed in the ventilation cavity, and apron boards capable of being opened and closed are arranged on the two sides of the shell assembly. According to the novel traction converter integrated with the vehicle body apron boards, the converter unit and the cooling unit are integrated, and the split structures of the original traction converter and the vehicle body apron boards are integrated together by arranging the apron boards capable of being opened and closed on the two sides of the shell assembly, so that the overall structure is simpler, and the cost is lower. The space utilization rate is greatly improved, light weight and miniaturization of the traction converter can be achieved, meanwhile, sealing connection between an original traction converter and a vehicle body can be omitted, and sealing of the traction converter is better achieved.

Description

Technical Field

[0001] This utility model relates to the field of high-speed train traction system technology, and in particular to a traction converter integrated with a car body skirt. Background Technology

[0002] With the rapid development of my country's national economy, the demand for rail transit has surged, and high-speed train traction systems are rapidly developing towards higher integration and higher power density. On the one hand, to achieve the goal of high integration and high power density, a large number of power electronic components are integrated within a limited space, drastically reducing the size of the traction converter. This leads to problems such as disordered layout and complex cable routing in the spatial structure design process. At the same time, the traction converter cabinet design must consider its installation relationship with the entire vehicle, involving the sealing between the traction converter and the car body. In addition to the car body skirt needing to be sealed separately, the cabinet door on the traction converter also needs to be sealed. This adds additional structures between the skirt and the traction converter, affecting the overall vehicle's lightweight design. Moreover, the space between the traction converter and the skirt is completely wasted, which is not conducive to the miniaturization of the traction converter. Utility Model Content

[0003] This utility model provides a traction converter that integrates a vehicle body skirt, aiming to solve the problems raised in the prior art. By integrating the cabinet of the traction converter with the structure of the vehicle body skirt, the space utilization is improved and the sealing structure is reduced, thereby achieving overall lightweighting and miniaturization.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A traction converter with integrated body skirt is provided, comprising: a housing assembly, a converter unit, and a cooling unit; the housing assembly is configured with a ventilation cavity and a sealed cavity that are not interconnected along the front-rear direction, the converter unit is installed inside the sealed cavity, the cooling unit is installed inside the ventilation cavity, and the housing assembly is provided with openable and closable skirts on both sides.

[0006] In one embodiment, sealing plates are provided at both the front and rear ends of the sealed cavity, and the sealing plates are sealed to the skirt plate.

[0007] In one embodiment, the sealing plate is a split structure, including an end plate and a sealing plate. The sealing plates are symmetrically arranged on the left and right sides of the end plate, and the sealing plates are sealed to the skirt plate.

[0008] In one embodiment, the housing assembly has an extension beam at the top of both sides and a bottom edge beam at the bottom. The extension beam is connected to the top edge beam, and a curved beam is connected between the top edge beam and the bottom edge beam. A top plate is provided above the extension beam, and a sealing plate is provided between the extension beam and the curved beam. A skirt is provided on the outside of the curved beam, and the space between the converter unit and the skirt is used for wiring.

[0009] In one embodiment, the skirt panel includes a skirt panel body, a sealing strip, a skirt panel hinge, a tension lock, and a mounting latch; the sealing strip is provided around the skirt panel body, the skirt panel hinge is provided at the bottom edge of the skirt panel body, and the tension lock and the mounting latch are provided at the top edge of the skirt panel body; a locking slot is provided on the top edge beam, and a hinge mounting interface is provided on the bottom edge beam.

[0010] In one embodiment, the skirt panel at the ventilation cavity is a ventilation skirt panel, the ventilation skirt panel is provided with a skirt panel ventilation opening, and an air inlet filter is provided behind the skirt panel ventilation opening.

[0011] In one embodiment, the cooling unit includes a converter cooling water pump, a water-cooled pipe, a heat exchanger, and a cooling fan. The water-cooled pipe connects the converter cooling water pump and the heat exchanger. The cooling fan is located next to the heat exchanger. The water-cooled pipe enters the sealed cavity from the ventilation cavity and then returns to the ventilation cavity. An external water pipe interface and a level gauge are provided on the front end face of the ventilation cavity.

[0012] In one embodiment, the water-cooling pipes are arranged in a serpentine pattern at the sealing plate between the ventilation cavity and the sealing cavity, and a bottom ventilation port is provided on the bottom plate at the bottom of the ventilation cavity.

[0013] In one embodiment, the cooling unit further includes two steering gear cooling water pumps, which provide cooling water to the two steering gears respectively.

[0014] In one embodiment, the rear end face of the housing assembly is provided with an end-side maintenance door, a wiring port and a control port, and the bottom plate of the housing assembly is provided with an openable inspection port.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model proposes a novel traction converter design that integrates a vehicle body skirt, combining a converter unit and a cooling unit. By setting openable skirts on both sides of the housing assembly, the original separate structures of the traction converter and the vehicle body skirt are integrated, making the overall structure simpler and greatly improving space utilization. This enables the traction converter to be lightweight and miniaturized, while eliminating the original sealed connection between the traction converter and the vehicle body, which is more conducive to the sealing of the traction converter. The housing assembly is composed of a ventilation cavity and a sealing cavity, ensuring that the converter unit operates in a sealed environment, while the ventilation cavity enables effective heat dissipation of the cooling unit. Attached Figure Description

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0018] Figure 1 A schematic diagram of the traction converter integrated with the vehicle body skirt;

[0019] Figure 2 A top view of the traction converter integrated with the vehicle body skirt;

[0020] Figure 3 A schematic diagram of the traction converter for the integrated body skirt after the skirt has been removed;

[0021] Figure 4 This is a schematic diagram of the structure of the skirt plate of the sealed cavity;

[0022] Figure 5 This is a schematic diagram of the cooling unit.

[0023] Figure 6 End face view of the sealed cavity of the traction converter integrated with the vehicle body skirt;

[0024] Figure 7 End view of the ventilation cavity of the traction converter integrated with the body skirt.

[0025] Figure label:

[0026] 1. Housing assembly; 1-1. Extension beam; 1-2. Bottom vent; 1-3. Mounting plate; 1-4. Inspection port; 1-5. Inlet air filter; 1-6. End side maintenance door; 1-7. Wiring port; 1-8. Control port; 2. Ventilation skirt; 2-1. Skirt vent; 3. Skirt; 3-1. Skirt body; 3-2. Sealing strip; 3-3. Skirt hinge; 3-4. Tensioner lock; 3-5. Mounting latch; 4. Sealing plate; 5. 6. Connecting plate; 7. Top edge beam; 8. Locking port; 9. Bent beam; 10. Bottom edge beam; 11. Hinge installation interface; 12. Top plate; 13. Inspection port; 14. Ventilation cavity; 15. Sealed cavity; 16. Cooling unit; 17. Converter cooling water pump; 18. Water-cooled pipe; 19. Heat exchanger; 10. Cooling fan; 11. Steering gear cooling water pump; 12. External water pipe interface; 13. Level gauge. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Please refer to the following: Figures 1 to 7 The traction converter with integrated vehicle body skirt provided by this utility model will now be described.

[0032] A traction converter integrated with a vehicle body skirt includes: a housing assembly 1, a converter unit, and a cooling unit 12; as shown Figure 1 and Figure 2 As shown, the housing assembly 1 is configured with a non-communicating ventilation cavity 10 and a sealed cavity 11 along the front-to-back direction. The sealed cavity 11 is used to install the converter unit, ensuring its operation in a sealed environment and preventing external environmental influences. The ventilation cavity 10 is used to install the cooling unit 12, achieving heat dissipation through natural or forced ventilation. The housing assembly 1 has openable skirts 3 on both sides, allowing for convenient maintenance and repair when needed. The skirts 3 are equipped with sealing strips 3-2 to ensure sealing performance. The top of the housing assembly 1 has a mounting plate 1-3 for mounting the traction converter to the bottom of the vehicle body. Equipment connection plates 5 are located on the front and rear end faces of the housing assembly 1 for connecting other vehicle body equipment. This design significantly improves the usable space of the traction converter, enabling its lightweight and miniaturization, while eliminating the original sealed connection between the traction converter and the vehicle body, further facilitating the sealing of the traction converter.

[0033] In one embodiment, sealing plates are provided at both the front and rear ends of the sealed cavity 11, and the sealing plates are sealed to the skirt plate 3 to prevent moisture and dust from entering.

[0034] In one embodiment, the sealing plate is a split structure, including an end plate and a sealing plate 4. The sealing plates 4 are symmetrically arranged on the left and right sides of the end plate. The sealing plates 4 are sealed with the skirt plate 3 to ensure the airtightness of the sealing cavity. The split structure design is more conducive to installation.

[0035] In other embodiments, the sealing plate can also be a one-piece structure, which provides better sealing.

[0036] like Figure 1 and Figure 3 As shown, the top of both sides of the housing assembly 1 is provided with an extension beam 1-1, and the bottom is provided with a bottom edge beam 8. The extension beam 1-1 is connected to the top edge beam 6. A curved beam 7 is connected between the top edge beam 6 and the bottom edge beam 8. A top plate 9 is provided above the extension beam 1-1. An inspection port 9-1 is provided on the top plate 9. A sealing plate 4 is provided between the extension beam 1-1 and the curved beam 7. A skirt plate 3 is provided on the outside of the curved beam 7. The space between the converter unit and the skirt plate 3 can be used for wiring, thereby further saving space and improving the space utilization rate.

[0037] like Figure 4As shown, the skirt panel 3 includes a skirt panel body 3-1, a sealing strip 3-2, a skirt panel hinge 3-3, a tension lock 3-4, and a mounting latch 3-5. The skirt panel body 3-1 is made of high-strength, corrosion-resistant material to ensure good performance under various environmental conditions. The skirt panel body 3-1 is surrounded by a sealing strip 3-2 made of high-quality rubber material, which has good elasticity and weather resistance, ensuring a tight seal between the skirt panel 3 and the housing assembly 1, preventing moisture and dust from entering. The skirt panel body 3-1 has a skirt panel hinge 3-3 at its bottom edge, which is made of stainless steel, providing good corrosion resistance and durability, ensuring smooth opening and closing of the skirt panel 3. The top edge of the skirt panel body 3-1 is equipped with a tension lock 3-4 and a mounting latch 3-5. The tension lock 3-4 is made of high-strength alloy material and has reliable locking performance, ensuring that the skirt panel 3 is firmly fixed in the closed state. The mounting latch 3-5 works in conjunction with the tension lock 3-4 to further enhance the fixing effect of the skirt panel 3 and ensure sealing performance. The top edge beam 6 is equipped with a lock hole 6-1, and the bottom edge beam 8 is equipped with a hinge mounting interface 8-1.

[0038] In one embodiment, the skirt 3 at the ventilation cavity 10 is a ventilation skirt 2, and the ventilation skirt 2 is provided with a skirt vent 2-1. An air inlet filter 1-5 is located behind the skirt vent 2-1. The air inlet filter 1-5 can be installed on the ventilation skirt 2 or on the housing assembly 1, such as... Figure 3 As shown, the skirt vent 2-1 can further improve the ventilation effect and facilitate the heat dissipation of the cooling unit 12.

[0039] In one implementation, such as Figure 5 As shown, the cooling unit 12 includes a converter cooling water pump 12-1, a water-cooled pipe 12-2, a heat exchanger 12-3, and a cooling fan 12-4. The water-cooled pipe 12-2 connects the converter cooling water pump 12-1 and the heat exchanger 12-3, and the cooling fan 12-4 is located next to the heat exchanger 12-3. The water-cooled pipe 12-2 enters the sealed cavity 11 from the ventilation cavity 10, passes through the converter unit, and returns to the ventilation cavity 10, forming a closed-loop cooling system. The front end face of the ventilation cavity 10 is provided with an external water pipe interface 12-6 and a level gauge 12-7 for easy coolant filling and level monitoring.

[0040] In one embodiment, the water-cooling pipes 12-2 of the cooling unit 12 are arranged in a serpentine pattern at the sealing plate between the ventilation cavity 10 and the sealing cavity 11. This layout increases the contact area between the water-cooling pipes 12-2 and the air, and enhances the absorption of heat from the sealing cavity 11, thereby improving heat exchange efficiency. Bottom vents 1-2 are provided on the bottom plate of the ventilation cavity 10 to promote airflow, further improving the cooling effect and ensuring the efficient operation of the entire cooling system 12.

[0041] In one implementation, such as Figure 5 As shown, the cooling unit 12 includes not only the converter cooling water pump 12-1, water-cooled pipe 12-2, heat exchanger 12-3, and cooling fan 12-4, but also a steering gear cooling water pump 12-5. There are two steering gear cooling water pumps 12-5, each supplying cooling water to one of the two steering gears. Each steering gear cooling water pump 12-5 is connected to its corresponding steering gear via an independent water-cooled pipe, ensuring effective circulation of cooling water to remove the heat generated by the steering gear during operation. The steering gear cooling water pumps 12-5 and the converter cooling water pump 12-1 together form a comprehensive cooling system, ensuring good temperature control for all electrical and mechanical components of the vehicle under high load operation.

[0042] In one implementation, such as Figure 6 As shown, the rear end face of housing assembly 1 is provided with end-side maintenance door 1-6, wiring port 1-7, and control port 1-8, as follows: Figure 3 As shown, the bottom plate of housing assembly 1 has an openable access port 1-4. Wiring ports 1-7 and control ports 1-8 are located on the rear face of housing assembly 1 for easy wiring and control system connection. The design of the end-side maintenance door 1-6 and the bottom access port 1-4 facilitates the inspection and maintenance of internal components of the traction converter by maintenance personnel without disassembling the entire housing assembly 1. This not only improves maintenance efficiency but also reduces downtime, ensuring the normal operation of the vehicle.

[0043] In summary, this utility model proposes a novel traction converter design that integrates a vehicle body skirt, combining a converter unit and a cooling unit 12. By providing openable skirts 3 on both sides of the housing assembly 1, the original separate structures of the traction converter and the vehicle body skirt are integrated, making the overall structure simpler and greatly improving space utilization. This enables the traction converter to be lightweight and miniaturized, while eliminating the original sealed connection between the traction converter and the vehicle body, which is more conducive to the sealing of the traction converter. The housing assembly 1 is divided into a ventilation cavity 10 and a sealing cavity 11, ensuring that the converter unit operates in a sealed environment, while the ventilation cavity 10 enables effective heat dissipation of the cooling unit 12.

[0044] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A traction converter integrated with a vehicle body skirt, characterized in that, include: The housing assembly comprises a housing assembly, a converter unit, and a cooling unit. The housing assembly is configured with a ventilation cavity and a sealed cavity that are not interconnected along the front-to-back direction. The converter unit is installed inside the sealed cavity, and the cooling unit is installed inside the ventilation cavity. The housing assembly has openable and closable skirts on both sides.

2. The traction converter with integrated vehicle body skirt as described in claim 1, characterized in that, The sealing cavity is provided with sealing plates at both the front and rear ends, and the sealing plates are sealed to the skirt plate.

3. The traction converter with integrated vehicle body skirt according to claim 2, characterized in that, The sealing plate is a split structure, including an end plate and a sealing plate. The sealing plates are symmetrically arranged on the left and right sides of the end plate, and the sealing plates are sealed to the skirt plate.

4. The traction converter with integrated vehicle body skirt as described in claim 3, characterized in that, The housing assembly has extension beams on both sides at the top and bottom, and a bottom edge beam at the bottom. The extension beams are connected to the top edge beams, and a curved beam is connected between the top edge beams and the bottom edge beams. A top plate is provided above the extension beams, and a sealing plate is provided between the extension beams and the curved beams. A skirt is provided on the outside of the curved beams, and the space between the converter unit and the skirt is used for wiring.

5. The traction converter with integrated body skirt as described in claim 4, characterized in that, The skirt panel includes a skirt panel body, a sealing strip, a skirt panel hinge, a tension lock, and a mounting latch; the sealing strip is provided around the skirt panel body, the skirt panel hinge is provided at the bottom edge of the skirt panel body, and the tension lock and the mounting latch are provided at the top edge of the skirt panel body; a lock opening is provided on the top edge beam, and a hinge mounting interface is provided on the bottom edge beam.

6. The traction converter with integrated vehicle body skirt according to claim 1, characterized in that, The skirt panel in the ventilation cavity is a ventilation skirt panel, and the ventilation skirt panel is provided with a skirt panel ventilation opening, and an air inlet filter is provided behind the skirt panel ventilation opening.

7. The traction converter with integrated vehicle body skirt according to claim 1, characterized in that, The cooling unit includes a converter cooling water pump, water-cooled pipes, a heat exchanger, and a cooling fan. The water-cooled pipes connect the converter cooling water pump and the heat exchanger. The cooling fan is located next to the heat exchanger. The water-cooled pipes enter the sealed cavity through the ventilation cavity and then return to the ventilation cavity. An external water pipe interface and a level gauge are provided on the front end face of the ventilation cavity.

8. The traction converter with integrated body skirt according to claim 7, characterized in that, The water-cooling pipes are arranged in a serpentine pattern at the sealing plate between the ventilation cavity and the sealing cavity, and a bottom ventilation port is provided on the bottom plate at the bottom of the ventilation cavity.

9. The traction converter with integrated vehicle body skirt according to claim 7, characterized in that, The cooling unit also includes two steering gear cooling water pumps, which provide cooling water to the two steering gears respectively.

10. The traction converter with integrated body skirt according to any one of claims 1-9, characterized in that, The rear end face of the housing assembly is provided with an end-side maintenance door, a wiring port and a control port, and the bottom plate of the housing assembly is provided with an openable inspection port.

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