CN219659223U

CN219659223U - Vehicle-mounted power box

Info

Publication number: CN219659223U
Application number: CN202320762990.7U
Authority: CN
Inventors: 齐志新; 付巍; 周天怡; 钱冰; 曹毅峰; 徐文彬; 杨军
Original assignee: Shanghai Shentong Changke Rail Transit Vehicle Co ltd
Current assignee: Shanghai Shentong Changke Rail Transit Vehicle Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-09-08
Anticipated expiration: 2033-04-06

Abstract

The utility model provides a vehicle-mounted power box, which comprises: the box frame and the covering, the covering is fixed the outside of box frame. The box frame comprises a first box frame and a second box frame, and the second box frame is mounted on the first side of the first box frame. The copper bar arrangement area is arranged in the second box frame, the front end operation area and the intermediate equipment installation area are arranged in the first box frame, and the intermediate equipment installation area is located between the copper bar arrangement area and the front end operation area. The front end operation area is isolated from the intermediate equipment installation area through a partition board. Wherein, components are arranged in the front-end operation area, and the components comprise a breaker and a terminal strip; the upper part of the middle equipment installation area is provided with a current transformation device in a hanging mode, and the current transformation device comprises a current transformation transformer; copper bars are arranged at the bottom of the copper bar arrangement area.

Description

Vehicle-mounted power box

Technical Field

The utility model relates to the field of motor train unit accessories, in particular to a vehicle-mounted power supply box.

Background

The design structure of the lower box body of most of the current motor train units and urban railway trains is a plate welding structure. In order to achieve a certain design strength, the strength of the box body is generally increased by adopting the modes of thickening the thickness of the plate, locally adding the reinforcing plate, specially-shaped design and the like. The electric components in the box body are usually arranged on the top surface or the side surface of the box body, and medium and high voltage equipment arranged in the same box body cannot be arranged in an isolated mode.

As shown in fig. 1, the location of the label A, B is a splice weld of the sheet material. The sheet material in the location area of C, D is typically thicker than the sheet material in the area of the non-perforated area in order to be able to meet the overall static strength requirements of the box after perforation. The E position area is marked as an electric component installation position, and the isolation of medium and high voltage equipment can not be basically achieved.

Therefore, the prior art still has a plurality of problems, specifically including:

1. as a bearing structure, when a welding line is cracked or the plate is deformed by external force, the static strength and the fatigue strength of the box body are seriously reduced, so that the box body cannot reach the design life.

2. In order to increase the structural strength of the case, the thickness of the plate material is increased. Therefore, the higher the speed grade, the thicker the thickness of the plate, which increases the fatigue fracture risk of the vehicle body hanging support, and the requirement of light weight of the train cannot be met.

3. In order to ensure the structural strength of the box, a reinforcing plate is sometimes required to be lined inside the plate with more openings. However, when the reinforcing plate is added by adopting the welding structure, the welding heat affected zone area is increased, and the strength of the non-reinforcing area of the same plate may be reduced.

4. The medium-voltage and high-voltage electric equipment cannot be arranged in an isolated mode, when the ambient humidity is increased or dust accumulation is caused by long-time operation, short-circuit faults are easy to occur, and equipment damage is caused by overcurrent of the medium-voltage equipment.

The present utility model aims to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the problems, the utility model changes the structural bearing mode of the box body, and changes the plate bearing structure of the box body into a frame structure so as to increase the structural strength of the box body.

The utility model provides a vehicle-mounted power box, which comprises: the box body frame comprises a first box body frame and a second box body frame, the second box body frame is arranged on the first side of the first box body frame, a copper bar arrangement area is arranged in the second box body frame, a front end operation area and an intermediate equipment installation area are arranged in the first box body frame, the intermediate equipment installation area is positioned between the copper bar arrangement area and the front end operation area, and the front end operation area is isolated from the intermediate equipment installation area through a partition plate;

wherein, components are arranged in the front-end operation area, and the components comprise a breaker and a terminal strip; the upper part of the middle equipment installation area is provided with a current transformation device in a hanging mode, and the current transformation device comprises a current transformation transformer; copper bars are arranged at the bottom of the copper bar arrangement area.

In one embodiment, the front end operating area is isolated from the intermediate equipment installation area by a stainless steel plate.

In one embodiment, the first box frame comprises a first underframe, a first roof rack and a plurality of first longitudinal beams, wherein the first roof rack is supported and installed on the top of the first underframe through the plurality of first longitudinal beams;

the second box frame comprises a second underframe, a second top frame and a plurality of second longitudinal beams, the second top frame is supported and installed on the top of the second underframe through the plurality of second longitudinal beams, and the second box frame is installed on the first side of the first box frame through sharing two adjacent first longitudinal beams.

In one embodiment, a third longitudinal beam is respectively arranged on the second side and the third side of the first box frame, the third longitudinal beam is positioned between the front end operation area and the middle equipment installation area, and a plurality of holes are formed in the third longitudinal beam;

wherein the second side and the third side of the first box frame are respectively adjacent to the first side of the first box frame.

In one embodiment, a mounting rod is provided on the first top frame of the first box frame, and the mounting rod is located in the intermediate equipment mounting area.

In one embodiment, the second underframe, the second longitudinal beam and the second top frame are provided with holes, and the skin is connected with the parts provided with holes on the second underframe, the second longitudinal beam and the second top frame by adopting fixing pieces.

In one embodiment, the parts of the first top frame located at the second side and the third side are two cross beams, two ends of the two cross beams extend to the outside of the first longitudinal beam to exceed the first longitudinal beam, and the ends of the two cross beams are provided with grooves.

In one embodiment, the height of the second box frame is less than the height of the first box frame, and neither the length nor the width of the second box frame is greater than the length nor the width of the first box frame.

In one embodiment, the first top frame is provided with lifting lugs, and the lifting lugs are arranged in grooves at the end parts of the two cross beams of the first top frame in a plugging mode.

In one embodiment, the first bottom frame, the second top frame and the second bottom frame are formed by combining weather-resistant steel angle iron, the first longitudinal beam and the second longitudinal beam are weather-resistant steel angle iron, and the first top frame is formed by combining weather-resistant steel square tubes.

The vehicle-mounted power box has the following beneficial effects:

1. the plate bearing structure of the box body is changed into a frame type structure, so that the structural strength is increased, and the deformation speed of the box body is slowed down. Meanwhile, when the skin plate is impacted by external force, the design strength of the box body is not reduced, and the aging speed of the welding line is slowed down because the plate does not bear force. The plate is only used as the mounting interface of the skin and the connector, local reinforcement is not needed for the box body, the area of a welding heat affected zone is reduced, the total weight of the box body is reduced, and the requirement of light weight of a train is met.

2. The skin plate in the perforated area is connected with the frame in a bolt connection mode, so that the maintenance of internal electric components and the replacement of the perforated plate are facilitated.

3. The inside of the box body is partitioned and arranged, the service life and the safety of the equipment are improved, the personal safety is guaranteed, and the later-stage overhaul and maintenance are convenient.

Drawings

FIG. 1 is a schematic diagram of a vehicle power box in the prior art;

FIG. 2 is a schematic diagram of a box frame of a vehicle power box according to an embodiment of the present utility model;

FIG. 3 is an internal top view of a vehicle power box according to an embodiment of the utility model;

FIG. 4 is a schematic front view of the inside of a vehicle power box according to an embodiment of the present utility model;

FIG. 5 is a side view of a front end operating area side of a vehicle power box according to an embodiment of the present utility model;

fig. 6 is a schematic perspective view of a vehicle power box according to an embodiment of the utility model.

Reference numerals

1. A first case frame; 11. a first chassis; 12. a first top frame; 121. a cross beam; 13. a first stringer; 2. a second case frame; 21. a second chassis; 22. a second stringer; 23. a second top frame; 3. a mounting rod; 4. a third stringer; 5. a bolt; 6. a front end operation area; 7. an intermediate device installation area; 8. a copper-line arrangement region; 9. stainless steel plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model become more apparent, the technical solutions in the embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings in the embodiments of the present utility model.

An embodiment of the present utility model provides a vehicle-mounted power box, including: the box frame and the covering, the covering is fixed in the outside of box frame. As shown in fig. 2, the case frame includes a first case frame 1 and a second case frame 2, and the second case frame 2 is mounted to a first side of the first case frame 1. The second casing frame 2 is internally provided with a copper arrangement region 8, the first casing frame 1 is internally provided with a front end operation region 6 and an intermediate device installation region 7, and the intermediate device installation region 7 is positioned in the middle of the copper arrangement region 8 and the front end operation region 6, see fig. 4. Since the copper bar arrangement area 8 has a low probability of routine maintenance, it is placed on the side of the box frame remote from the front end operation area 6. The front end operation area 6 and the intermediate equipment installation area 7 are isolated by a partition plate. In this embodiment, the front end operation area 6 and the intermediate equipment installation area 7 are preferably isolated by a stainless steel plate 9, see fig. 5. Wherein, components are arranged in the front-end operation area 6, and the components comprise a breaker and a terminal strip; the upper part of the intermediate equipment installation area 7 is provided with a variable current device in a hanging mode, and the variable current device comprises a variable current transformer; copper bars are arranged at the bottom of the copper bar arrangement area 8. The copper bars and the current transformation device increase the insulation distance by using the space head, see fig. 4.

The first tank frame 1 includes a first chassis 11, a first roof frame 12, and a plurality of first stringers 13, and the first roof frame 12 is supported and mounted on the top of the first chassis 11 by the plurality of first stringers 13. The second box frame 2 includes a second bottom chassis 21, a second top chassis 23, and a plurality of second stringers 22, and the second top chassis 23 is supported and mounted on top of the second bottom chassis 21 by the plurality of second stringers 22. The second tank frame 2 is mounted to a first side of said first tank frame 1 by sharing two adjacent first stringers 13. In this embodiment, the first chassis 11 and the second chassis 21 are preferably formed by combining weather-resistant steel angles, the first longitudinal beam 13 and the second longitudinal beam 22 are weather-resistant steel angles, and the first top frame 12 is formed by combining weather-resistant steel square tubes.

The first top frame 12 of the first box frame 1 is provided with a mounting rod 3, and the mounting rod 3 is located in the intermediate equipment mounting area 7. In this embodiment, the mounting rod 3 is preferably a weather-resistant steel square tube.

The second side and the third side of the first box frame 1 are respectively provided with a third longitudinal beam 4, the third longitudinal beam 4 is positioned between the front end operation area 6 and the intermediate equipment installation area 7, and a plurality of holes are formed in the third longitudinal beam 4 so as to arrange components. In this embodiment, the third longitudinal beam 4 is preferably angle steel. Wherein the second side and the third side of the first casing frame 1 are adjacent to the first side of the first casing frame 1, respectively.

In this embodiment, the structural bearing mode of the vehicle-mounted battery box body in the prior art is changed, the plate bearing structure of the box body is changed into a frame type structure, the structural strength is increased, and the deformation speed of the box body is slowed down. Wherein, the selected weathering steel square tube is used as the main bearing frame of the box body; the selected weathering steel angle steel is convenient for open holes on the weathering steel angle steel when the auxiliary box body bears force and is used as a mounting point for the arrangement of internal components and the opening plate.

Holes are formed in the second underframe 21, the second longitudinal beam 22 and the second top frame 23, and the skin is connected with the holes in the second underframe 21, the second longitudinal beam 22 and the second top frame 23 through fixing pieces. The fixing member is preferably a bolt. The skin is fixedly connected with the rest of the box frame in a welded mode.

When the skin plate is impacted by external force, the design strength of the box body is not reduced. And as the plate does not bear force, the aging speed of the welding line is slowed down. The plate is only used as the mounting interface of the skin and the connector, local reinforcement is not needed for the box body, the welding heat affected zone area is reduced, and the total weight of the box body is reduced. The skin plate in the perforated area is connected with the box body frame through bolts, so that the overhaul of the internal electric components is facilitated. As shown in fig. 3, the second top frame has an opening plate mounted on its top, and in the design process and in the train service engineering, the number of openings may be changed, so that the bolt connection is convenient for replacing the opening plate.

Further, as shown in fig. 2, the portions of the first top frame 12 on the second side and the third side are two cross members 121, both ends of the two cross members 121 extend to the outside of the first longitudinal member 13 so as to exceed the first longitudinal member 13, and the ends of the two cross members 121 are grooved. The height of the second box frame 2 is smaller than that of the first box frame 1, and the length and width of the second box frame 2 are not larger than those of the first box frame 1. The first top frame 12 is provided with lifting lugs, the lifting lugs are arranged in grooves at the end parts of the two cross beams 121 of the first top frame 12 in a plugging mode, and the vehicle-mounted power supply box of one embodiment of the utility model is arranged in a vehicle body through the lifting lugs. In this embodiment, preferably, the two cross beams 121 are weather-proof steel square tubes, and four lifting lugs are mounted on the first top frame 12, and the lifting lugs are mounted on the weather-proof steel square tubes on the first top frame in a plugging manner.

The vehicle-mounted power box has the following beneficial effects:

It should be noted that, unless explicitly stated or limited otherwise, terms such as "mounted," "connected," and the like as used in the description of the present utility model should be construed broadly, and for example, the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements, and the specific meaning of the two elements can be understood by a person skilled in the art according to specific situations. It should be understood that the terms "top," "bottom," "transverse," "longitudinal," "inner" and "outer," and the like, as used herein, are based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiments described above are intended to provide those skilled in the art with a full range of modifications and variations to the embodiments described above without departing from the spirit of the utility model, and therefore the scope of the utility model is not limited to the embodiments described above, but is to be accorded the broadest scope consistent with the novel features set forth in the claims.

Claims

1. A vehicle-mounted power box, characterized by comprising: the box body frame comprises a first box body frame and a second box body frame, the second box body frame is arranged on the first side of the first box body frame, a copper bar arrangement area is arranged in the second box body frame, a front end operation area and an intermediate equipment installation area are arranged in the first box body frame, the intermediate equipment installation area is positioned between the copper bar arrangement area and the front end operation area, and the front end operation area is isolated from the intermediate equipment installation area through a partition plate;

2. The vehicle-mounted power box according to claim 1, wherein the front-end operation area and the intermediate equipment installation area are isolated by a stainless steel plate.

3. The vehicle-mounted power box according to claim 1, wherein the first box frame includes a first bottom frame, a first top frame, and a plurality of first stringers, the top of the first bottom frame being supported by the plurality of first stringers and mounted with the first top frame;

4. The vehicle-mounted power box according to claim 3, wherein a third longitudinal beam is arranged on the second side and the third side of the first box frame respectively, the third longitudinal beam is positioned between the front-end operation area and the middle equipment installation area, and a plurality of holes are formed in the third longitudinal beam;

5. A vehicle power box according to claim 3, wherein a mounting bar is provided on the first roof frame of the first box frame, the mounting bar being located in the intermediate device mounting area.

6. The vehicle-mounted power box according to claim 3, wherein holes are formed in the second underframe, the second longitudinal beam and the second top frame, and the skin is connected with the parts, provided with the holes, of the second underframe, the second longitudinal beam and the second top frame by fixing pieces.

7. The vehicle-mounted power supply box according to claim 4, wherein the height of the second box frame is smaller than the height of the first box frame, and the length and width of the second box are not larger than those of the first box frame.

8. The vehicle-mounted power box according to claim 7, wherein the portions of the first roof frame on the second side and the third side are two cross members, both ends of the two cross members extend to the outside of the first longitudinal member so as to exceed the first longitudinal member, and the ends of the two cross members are grooved.

9. The vehicle-mounted power box according to claim 8, wherein the first top frame is provided with lifting lugs, and the lifting lugs are mounted in grooves at the ends of the two cross beams in a plug-in manner.

10. The vehicle-mounted power box according to any one of claims 3 to 9, wherein the first bottom frame, the second top frame and the second bottom frame are formed by combining weather-resistant steel angle steel, the first longitudinal beam and the second longitudinal beam are weather-resistant steel angle steel, and the first top frame is formed by combining weather-resistant steel square tubes.