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CN-224233958-U - Control box under heavy-duty vehicle

CN224233958UCN 224233958 UCN224233958 UCN 224233958UCN-224233958-U

Abstract

The utility model discloses a lower control box of a heavy-duty vehicle, which comprises a main frame and a coaming, wherein the main frame comprises a top bearing part and a front side supporting part, the top bearing part comprises two top cross beams which are arranged in parallel, an end lifting lug is arranged at the end corner of each top cross beam, two middle lifting lugs are arranged at the middle position of each top cross beam at intervals, the front side supporting part comprises two vertical beams which are vertically connected to the front side of the top cross beam and at least one supporting vertical plate which is vertically arranged with the top cross beam, and the coaming comprises a top plate which is covered on the top of the main frame, a bottom plate which is covered on the bottom of the main frame, and a front side plate, a rear side plate, a left side plate and a right side plate which are covered on the periphery of the main frame. Through the mode, the main frame is optimized by the aid of stress distribution, the bearing capacity is guaranteed, meanwhile, weight reduction is achieved, load distribution is dispersed by eight lifting lugs, stress concentration is avoided, redundant materials are reduced, weight is further reduced, and light weight is achieved.

Inventors

  • DING YAN
  • TENG DAWEI
  • SUN HUI
  • DAI YUE

Assignees

  • 常州今创电工有限公司

Dates

Publication Date
20260512
Application Date
20250513

Claims (7)

  1. 1. The under-vehicle control box is characterized by comprising a main framework, a control box and a control box, wherein the main framework comprises a main frame and a coaming connected to the periphery of the main frame; the main frame includes: The top bearing part comprises two top cross beams which are arranged in parallel, an end lifting lug is arranged at the end corner of each top cross beam, and two middle lifting lugs are arranged at the middle position of each top cross beam at intervals; The front side supporting part comprises two vertical beams vertically connected to the front side of the top cross beam and at least one supporting vertical plate vertically arranged with the top cross beam; The coaming comprises a top plate covered on the top of the main frame, a bottom plate covered on the bottom of the main frame, a front side plate, a rear side plate, a left side plate and a right side plate which are wrapped around the main frame.
  2. 2. The under-vehicle control box of claim 1, wherein the upright and support risers are fixedly connected to the roof rail by continuous welds.
  3. 3. The under-vehicle control box according to claim 1, wherein the end lifting lugs and the middle lifting lugs are of a stamping forming structure and are arranged in an L shape, vertical arms of the end lifting lugs and the middle lifting lugs are welded and fixed on the side edges of the top cross beam, and lifting holes are formed in cross arms of the end lifting lugs and the middle lifting lugs so as to hang the whole box below the vehicle body.
  4. 4. The under-vehicle control box according to claim 1, wherein the support risers are provided with lightening holes, and the distribution positions of the lightening holes are set based on the stress distribution areas of the support risers.
  5. 5. The under-vehicle control box according to claim 1, wherein the top plate, the bottom plate, the front side plate, the rear side plate, the left side plate and the right side plate are all formed by stamping an aluminum alloy, and the plate surface is provided with a weight reduction groove.
  6. 6. The under-vehicle control box of claim 1, wherein the area between the support riser and the front side panel forms a high voltage equipment mounting area.
  7. 7. The under-vehicle control box according to claim 6, wherein a bottom access door is provided on the bottom plate, and a side access door is provided on the front side plate, the side access door corresponding to a high voltage equipment installation area position.

Description

Control box under heavy-duty vehicle Technical Field The utility model relates to the technical field of under-vehicle boxes, in particular to a weight-reducing under-vehicle control box. Background In the installation of the electrical components under the motor train unit, the box body under the motor train unit plays an important role, not only provides a stable installation foundation for various electrical components, but also meets the extremely severe requirements on strength, sealing and electrical clearance. However, in order to meet these severe indexes, the conventional structure often adopts an excessively conservative redundant structure, which results in a significant increase in the quality of the tank, and thus, has a negative effect on the running speed of the whole vehicle. The overweight box body can increase the power consumption of the motor train unit, limit the speed improvement of the motor train unit, and prevent the motor train unit from realizing the optimal performance in the high-speed running field. Therefore, how to effectively reduce the weight of the box body on the premise of ensuring that the box body meets the necessary strength becomes a technical problem to be solved urgently. Disclosure of utility model The utility model mainly solves the technical problem of providing the under-heavy-duty vehicle control box, which optimizes the main frame structure by using stress distribution, can ensure the bearing capacity and realize weight reduction, and eight lifting lugs disperse load distribution, so that stress concentration is avoided, redundant materials are reduced, the weight is further reduced, and the weight is lightened. In order to solve the technical problems, the utility model adopts a technical scheme that the under-vehicle control box for reducing the weight comprises a main framework, a control box body and a control box body, wherein the main framework comprises a main framework and a coaming connected to the periphery of the main framework; the main frame includes: The top bearing part comprises two top cross beams which are arranged in parallel, an end lifting lug is arranged at the end corner of each top cross beam, and two middle lifting lugs are arranged at the middle position of each top cross beam at intervals; The front side supporting part comprises two vertical beams vertically connected to the front side of the top cross beam and at least one supporting vertical plate vertically arranged with the top cross beam; The coaming comprises a top plate covered on the top of the main frame, a bottom plate covered on the bottom of the main frame, a front side plate, a rear side plate, a left side plate and a right side plate which are wrapped around the main frame. In a preferred embodiment of the utility model, the upright and support risers are fixedly connected to the top cross member by continuous welds. In a preferred embodiment of the utility model, the end lifting lugs and the middle lifting lugs are of stamping forming structures and are arranged in an L shape, vertical arms of the end lifting lugs and the middle lifting lugs are welded and fixed on the side edges of the top cross beam, and lifting holes are formed in cross arms of the end lifting lugs and the middle lifting lugs so as to hang the whole box below the vehicle main body. In a preferred embodiment of the utility model, the support risers are shown provided with lightening holes, the distribution of which is arranged on the basis of the stress distribution area of the support risers. In a preferred embodiment of the present utility model, the top plate, the bottom plate, the front side plate, the rear side plate, the left side plate and the right side plate are all formed by stamping an aluminum alloy, and the plate surface is provided with a weight-reducing groove. In a preferred embodiment of the utility model, the area between the support riser and the front side panel forms a high voltage equipment mounting area. In a preferred embodiment of the utility model, a bottom access door is provided on the bottom plate, and a side access door is provided on the front side plate, the side access door corresponding to the location of the high voltage equipment installation area. The beneficial effects of the utility model are as follows: The main frame structure is optimized according to stress distribution, the limitation of 'strength dependence weight' of a traditional lower box of the vehicle is solved, the weight reduction effect is achieved while the strength load is ensured, eight lifting lugs are connected with the vehicle body, the load is dispersed to eight supporting points, concentrated load is avoided, redundant materials which are required to be increased due to local overload are reduced, the overall weight is effectively reduced, meanwhile, the weight reduction and the weight reduction are realized, the manufacturing cost and the transportation cost are greatly reduced, and the