Small light-weight two-in-one rail transit vehicle-mounted converter structure

Abstract

The utility model relates to the technical field of vehicle-mounted converters, in particular to a small light-weight two-in-one rail transit vehicle-mounted converter structure. Comprising a converter frame, and the converter frame comprises two front boxes, two middle units and a hanging beam assembly. Each hanging beam assembly comprises two external hanging beams and a middle hanging beam, and the hanging beam assemblies are connected together through the frame of the middle unit; lifting lugs are respectively arranged at two ends of the top of the middle lifting beam; an upper connecting plate of the middle lifting beam is simultaneously mounted at the top of the box body of the front box and the upper part of a steel partition plate of the middle lifting beam; the lower connecting plate of the middle hanging beam is mounted at the bottom of the box body of the front box and is connected with the steel partition plate, so that the size of the converter is reduced, the weight of the converter is reduced, and the manufacturing cost is reduced; the overall structure of the product tends to be stable; and when one group of current transformers fails, the other group of current transformers cannot stop working due to environmental factors such as temperature rise, explosion impact and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted converters, and in particular to a small and lightweight two-in-one rail transit vehicle-mounted converter structure. Background Art

[0002] In the prior art, the traditional rail transit vehicle-mounted inverter is bulky and heavy, which not only increases the load of the vehicle, but also limits the design optimization of the vehicle in other aspects. Secondly, the traditional inverter design requires more under-vehicle installation space, which makes the electrical components under the vehicle too compact to be installed, unable to meet the increasing requirements of future vehicle functional components, and is not conducive to the maintenance and installation of under-vehicle devices. At the same time, since the traditional design requires more components, the manufacturing cost is relatively high, which increases the procurement cost of the vehicle and affects market competitiveness. In addition, too many traditional inverters with the same function are distributed under different carriages, which is not conducive to the installation and maintenance of the entire inverter system, nor is it conducive to the layout design of vehicle cables. Utility Model Content

[0003] The purpose of the utility model is to provide a small and lightweight two-in-one rail transit vehicle-mounted inverter structure in response to the defects in the prior art, so as to achieve the effect of adopting a two-in-one embedded layout, reducing the volume of the inverter, reducing the weight of the inverter, saving the under-vehicle installation space, and reducing the manufacturing cost; adopting a combined frame to make the overall structure of the product tend to be stable; because the internal main circuit adopts a separated layout method, when one group of inverters fails, the other group of inverters will not stop working due to environmental factors such as temperature rise, explosion impact, etc.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a small and lightweight two-in-one rail transit vehicle-mounted inverter structure, including an inverter frame, the inverter frame includes two front boxes, two intermediate units and a suspension beam assembly; the suspension beam assembly includes two external suspension beams and one middle suspension beam, and the suspension beam assembly is connected together through the frame of the intermediate unit; the top ends of the middle suspension beam are respectively provided with lifting ears, and the upper connecting plate of the middle suspension beam is simultaneously installed on the top of the box body of the front box and the upper part of the steel partition of the middle suspension beam; the lower connecting plate of the middle suspension beam is installed at the bottom of the box body of the front box, and is simultaneously connected to the steel partition.

[0005] Furthermore, a left side mounting block and a right side mounting block connecting the left side portion of the intermediate unit and the right side portion of the intermediate unit are arranged on both sides of the steel partition.

[0006] Furthermore, after a hole is opened on the steel partition, a Z-shaped connecting plate is inserted therein, and two sides of the Z-shaped connecting plate are respectively fixed to the intermediate unit.

[0007] Furthermore, the backs of the left mounting block and the right mounting block are fastened together with the steel partition using mounting bolts.

[0008] Furthermore, a notch is added on the steel partition, and the notch is slightly larger than the shape of the non-structural component.

[0009] Furthermore, when the cable passes through the middle partition, a sheath made of PE material is used to protect the cable.

[0010] Furthermore, according to the function of the converter cavity, an input component functional area, a main circuit first component functional area, a main circuit second component functional area, and an output component functional area are divided.

[0011] The converter frame includes two front boxes, two intermediate units and a suspension beam assembly; the suspension beam assembly includes two external suspension beams and one middle suspension beam, and the suspension beam assembly is connected together through the frame of the intermediate unit; the two ends of the top of the middle suspension beam are respectively provided with suspension ears, and the upper connecting plate of the middle suspension beam is simultaneously installed on the top of the box body of the front box and the upper part of the steel partition of the middle suspension beam; the lower connecting plate of the middle suspension beam is installed on the bottom of the box body of the front box and is connected to the steel partition at the same time, so as to achieve a two-in-one mosaic layout, reduce the volume of the converter, reduce the weight of the converter, save the installation space under the vehicle, and reduce the manufacturing cost; the combined frame is used to make the overall structure of the product stable; because the internal main circuit adopts a separated layout method, when one group of converters fails, the other group of converters will not stop working due to environmental factors such as temperature rise and explosion impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of a small and lightweight two-in-one rail transit vehicle-mounted converter structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the steel partition of the utility model;

[0015] Figure 3 It is a schematic diagram of the connection structure between the steel partition and the intermediate units on both sides of the utility model;

[0016] Figure 4It is a schematic diagram of the avoidance opening at the intersection of the steel partition and the non-structural member of the utility model;

[0017] Figure 5 It is a sealing schematic diagram of the utility model when the cable passes through the steel partition;

[0018] Figure 6 A schematic diagram showing the distribution of the functional zones of the two-in-one converter of the present invention;

[0019] Reference numerals:

[0020] Converter frame 1, input component functional area 1-1, main circuit first component functional area 1-2, main circuit second component functional area 1-1, output component functional area 1-4, front box 2, intermediate unit 3, intermediate unit left part 3-1, intermediate unit right part 3-2, hanging beam assembly 4, external hanging beam 5, middle hanging beam 6, hanging ear 6-1, upper connecting plate 6-2, steel partition 6-3, left mounting block 6-3-1, right mounting block 6-3-2, mounting bolts 6-3-3, notch 6-3-4, lower connecting plate 6-4, Z-shaped connecting plate 7. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be noted that the directions or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] A small and lightweight two-in-one rail transit vehicle-mounted converter structure, such as Figure 1 , 2 As shown, it includes a converter frame 1, and the converter frame 1 includes two front boxes 2, two intermediate units 3 and a suspension beam assembly 4; the suspension beam assembly 4 includes two external suspension beams 5 and a middle suspension beam 6, and the suspension beam assembly 4 is connected together through the frame of the intermediate unit 3; the two ends of the top of the middle suspension beam 6 are respectively provided with suspension ears 6-1, and the upper connecting plate 6-2 of the middle suspension beam 6 is simultaneously installed on the top of the box body of the front box 2 and the upper part of the steel partition 6-3 of the middle suspension beam 6; the lower connecting plate 6-4 of the middle suspension beam 6 is installed at the bottom of the box body of the front box 2, and is simultaneously connected to the steel partition 6-3.

[0024] Specifically, the converter frame 1 includes two front boxes 2, two middle units 3 and a suspension beam assembly 4; the suspension beam assembly 4 includes two external suspension beams 5 and a middle suspension beam 6, and the suspension beam assembly 4 is connected together through the frame of the middle unit 3; the two ends of the top of the middle suspension beam 6 are respectively provided with suspension ears 6-1, and the upper connecting plate 6-2 of the middle suspension beam 6 is simultaneously installed on the top of the box body of the front box 2 and the upper part of the steel partition 6-3 of the middle suspension beam 6; the lower connecting plate 6-4 of the middle suspension beam 6 is installed on the bottom of the box body of the front box 2, and is simultaneously connected to the steel partition 6-3, so as to use only one set of suspension beam assemblies 4 in the converter, and the steel partition 6-3 installed on the middle suspension beam 6 is protected The space on both sides of the partition is isolated, and the structural strength of the suspension beam assembly 4 is guaranteed; the two separated sets of converter intermediate units 3 are respectively connected to three sets of suspension beam components, namely two external suspension beams 5 and one middle suspension beam 6, so that the converter as a whole forms a more stable frame structure, thereby reducing the width of the converter in the driving direction by about 20% and reducing the overall weight by about 15%; and through mutual interlocking in space, the remaining space in a single converter is effectively utilized to achieve the purpose of lightweight and miniaturization; input components with the same potential are placed together, and the output components are placed in the same way to maintain a unified external interface of the two-in-one converter; a combined frame structure is used to make the converter as a whole tend to be stable; separation measures are used at the positions where some spaces interact, so that the components of the main circuit are independent of each other to ensure product reliability.

[0025] As a preferred embodiment of the above, Figure 3 As shown, the steel partition plate 6-3 is provided with a left mounting block 6-3-1 and a right mounting block 6-3-2 connecting the middle unit left part 3-1 and the middle unit right part 3-2 of the middle unit 3 on both sides.

[0026] Specifically, a left side mounting block 6-3-1 and a right side mounting block 6-3-2 connecting the left side part 3-1 and the right side part 3-2 of the intermediate unit 3 are provided on both sides of the steel partition plate 6-3, so as to strengthen the stable connection between the two separated intermediate units 3 and the middle suspension beam 6.

[0027] As a preferred embodiment of the above, Figure 3 As shown, after a hole is opened on the steel partition plate 6 - 3 , a Z-shaped connecting plate 7 is inserted therein, and both sides of the Z-shaped connecting plate 7 are respectively fixed to the intermediate unit 3 .

[0028] Specifically, after opening a hole on the steel partition 6-3, a Z-shaped connecting plate 7 is inserted. The two sides of the Z-shaped connecting plate 7 are respectively fixed to the middle unit 3 to cooperate with the steel partition 6-3 to separate the middle units on both sides, and further strengthen the two separated middle units 3 and the middle suspension beam 6 to maintain a stable connection.

[0029] As a preferred embodiment of the above, Figure 3 As shown, the backs of the left mounting block 6-3-1 and the right mounting block 6-3-2 are fastened together with the steel partition 6-3 using mounting bolts 6-3-3.

[0030] Specifically, the connection stability between the two intermediate units 3 and the middle suspension beam 6 is strengthened by fastening the left mounting block 6-3-1 and the right mounting block 6-3-2 to the steel partition plate 6-3 using mounting bolts 6-3-3 at their backs.

[0031] As a preferred embodiment of the above, Figure 4 As shown, a notch 6-3-4 is added to the steel partition 6-3, and the notch 6-3-4 is slightly larger than the shape of the non-structural component.

[0032] Specifically, a notch 6-3-4 is added to the steel partition 6-3, and the notch 6-3-4 is slightly larger than the non-structural component shape to avoid complicated sealing methods. The notch 6-3-4 is slightly larger than the non-structural component shape to ensure that the airflow in the space on both sides of the steel partition 6-3 does not cause large-scale interference.

[0033] As a preferred embodiment of the above, Figure 5 As shown, when the cable passes through the middle partition, a PE sheath is used to protect the cable.

[0034] Specifically, when the cable passes through the middle partition, a PE sheath is used to protect the cable to prevent scratches, while at the same time preventing interference with the airflow in the space on both sides of the steel partition 6-3.

[0035] As a preferred embodiment of the above, Figure 6 As shown, according to the function of the converter cavity, an input component functional area 1-1, a main circuit first component functional area 1-2, a main circuit second component functional area 1-1, and an output component functional area 1-4 are divided.

[0036] Specifically, by dividing the converter cavity function into an input component functional area 1-1, a main circuit first component functional area 1-2, a main circuit second component functional area 1-1, and an output component functional area 1-4, the 1-1 position includes two groups of separate converter input components, ensuring a unified external interface, and the 1-2 and 1-3 positions remain separated and independent from other sections. The 1-4 position includes two groups of separate converter output components, ensuring a unified external interface. This form of spatial integration can efficiently utilize space and reduce external dimensions.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A small and lightweight two-in-one rail transit vehicle-mounted converter structure, characterized in that: The invention comprises a converter frame (1), wherein the converter frame (1) comprises two front boxes (2), two intermediate units (3) and a suspension beam assembly (4); The suspension beam assembly (4) comprises two outer suspension beams (5) and a middle suspension beam (6), and the suspension beam assembly (4) is connected together through the frame of the intermediate unit (3); The two ends of the top of the middle hanging beam (6) are respectively provided with hanging ears (6-1), and the upper connecting plate (6-2) of the middle hanging beam (6) is simultaneously installed on the top of the box body of the front box (2) and the upper part of the steel partition plate (6-3) of the middle hanging beam (6); The lower connecting plate (6-4) of the middle hanging beam (6) is installed on the bottom of the box body of the front box (2) and is also connected to the steel partition plate (6-3).

2. The small and lightweight two-in-one rail transit vehicle-mounted converter structure according to claim 1 is characterized in that: The steel partition plate (6-3) is provided with a left side mounting block (6-3-1) and a right side mounting block (6-3-2) on both sides thereof for connecting the left side portion (3-1) of the middle unit and the right side portion (3-2) of the middle unit (3).

3. The small and lightweight two-in-one rail transit vehicle-mounted converter structure according to claim 2 is characterized in that: After a hole is opened on the steel partition plate (6-3), a Z-shaped connecting plate (7) is inserted therein, and two sides of the Z-shaped connecting plate (7) are respectively fixed to the intermediate unit (3).

4. The small and lightweight two-in-one rail transit vehicle-mounted converter structure according to claim 3 is characterized in that: The backs of the left mounting block (6-3-1) and the right mounting block (6-3-2) are fastened together with the steel partition plate (6-3) using mounting bolts (6-3-3).

5. The small and lightweight two-in-one rail transit vehicle-mounted converter structure according to claim 4 is characterized in that: A notch (6-3-4) is added to the steel partition (6-3), and the notch (6-3-4) is slightly larger than the shape of the non-structural component.

6. The small and lightweight two-in-one rail transit vehicle-mounted converter structure according to claim 1 is characterized in that: When the cable passes through the middle partition, a PE sheath is used to protect the cable.

7. The small and lightweight two-in-one rail transit vehicle-mounted converter structure according to claim 1 is characterized in that: According to the function of the converter cavity, an input component functional area (1-1), a main circuit first component (1-2) functional area, a main circuit second component functional area (1-1), and an output component functional area (1-4) are divided.

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