New energy reformed vehicle body structure of diesel locomotive

Abstract

The utility model belongs to the technical field of railway locomotive vehicle manufacturing, and particularly relates to a diesel locomotive new energy reformed vehicle body structure which comprises a locomotive body. The locomotive body adopts a locomotive body of an original internal combustion locomotive, a chassis steel structure transformation module is arranged at the bottom of the locomotive body, side wall steel structure transformation modules are arranged on the two sides of the locomotive body, and a roof steel structure transformation module is arranged at the top of the locomotive body; the chassis steel structure transformation module is mainly used for carrying out applicability transformation on an original chassis steel structure, and a new energy battery component is additionally arranged. According to the utility model, the original structure does not need to be dismantled in a large area when the body structure of the internal combustion locomotive is transformed, so that the transformation cost is effectively reduced, the heat dissipation performance of the power battery pack is remarkably improved, and the energy utilization efficiency of the locomotive is greatly improved; and new energy reformed products of other diesel locomotives can be derived.

Description

Technical Field

[0001] This utility model belongs to the field of railway locomotive and rolling stock manufacturing technology, specifically relating to a new energy conversion car body structure for diesel locomotives. Background Technology

[0002] With the development of science and technology and the demands of the new era, green environmental protection, high efficiency and energy saving, and low carbon and intelligence have become the development themes of rail transit equipment. Traditional diesel locomotives are facing significant pressure for upgrading and technological innovation. Currently, there is no systematic method for modular upgrading and reconstruction of diesel locomotives for new energy. The design of traditional diesel locomotive bodies does not reserve space for the installation of new energy equipment, requiring large-scale demolition of the original structure during modification, resulting in high costs and inconvenience for battery pack maintenance. At the same time, the power battery pack has low heat dissipation efficiency and is prone to thermal runaway under high-temperature conditions. Therefore, the current focus is on modifying a diesel locomotive body to be suitable for new energy, and solving the above-mentioned technical problems has become the direction of efforts for technicians in this field. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned problems and shortcomings by providing a new energy vehicle body structure for internal combustion engine locomotives. To achieve this objective, the following technical solution can be adopted:

[0004] A new energy vehicle body structure for a diesel locomotive includes a locomotive body. The locomotive body utilizes the existing diesel locomotive body, with a chassis steel structure modification module installed at the bottom, side wall steel structure modification modules installed on both sides, and a roof steel structure modification module installed on the top. The chassis steel structure modification module primarily adapts the existing chassis steel structure for future use and adds new energy battery components. The side wall steel structure modification module primarily modifies the existing side wall structure to accommodate the maintenance of the power system battery pack. The roof steel structure modification module primarily dismantles the existing roof structure and creates new heat dissipation channels to meet the requirements of a new energy vehicle body.

[0005] The underframe steel structure modification module includes a slide rail battery mounting base, a dynamic stress compensation bolt module, and a power battery rack base plate; the bottom of the locomotive body is symmetrically arranged with equal longitudinal spacing of slide rail battery mounting bases, and dynamic stress compensation bolt modules are arranged with equal spacing on them, and the power battery rack base plate is installed through the dynamic stress compensation bolt modules.

[0006] The side wall steel structure modification module includes removing the right side wall of the locomotive body with the machine room air filter and the side wall with the cooling room, and modifying them into a honeycomb aluminum composite panel structure wall with maintenance doors for the maintenance of the power system battery pack.

[0007] The roof steel structure modification module includes modifying the top cover of the power compartment of the locomotive body, and setting an integrated heat dissipation duct on the top cover, as well as removing the original car body's cooling compartment top radiator structure and cooling compartment steel structure, and adding a movable cooling compartment top cover that adopts a hinged linkage structure with the original auxiliary compartment movable top cover.

[0008] The integrated heat dissipation duct has an embedded 45° air guide array, the duct cross-section adopts a trapezoidal tapering design, and the inner wall of the duct is coated with paraffin-based phase change material.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model, through the combined use of the designed chassis steel structure modification module, side wall steel structure modification module, and roof steel structure modification module, can effectively reduce modification costs by eliminating the need for large-scale demolition of the original structure during the modification of the internal combustion locomotive body structure. It also significantly improves the heat dissipation performance of the power battery pack, thereby greatly improving the locomotive's energy utilization efficiency. This is a design for a specific internal combustion locomotive body structure, and other new energy modification products for internal combustion locomotives can be derived from this structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the base frame structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the side wall structure in this utility model.

[0014] Figure 4 This is a schematic diagram of the roof structure in this utility model.

[0015] Figure 5 This is a schematic diagram of the integrated heat dissipation air duct structure in this utility model.

[0016] Figure 6 This is a schematic diagram of the steel structure modification module of the base frame in this utility model.

[0017] 1. Locomotive body; 2. Underframe steel structure modification module; 3. Side wall steel structure modification module; 4. Roof steel structure modification module; 5. Traction air duct modification module; 6. Integrated heat dissipation air duct; 7. Honeycomb aluminum composite panel structure wall; 8. Cooling chamber movable top cover; 21. Sliding rail battery mounting base; 22. Dynamic stress compensation bolt module; 23. Power battery rack base plate. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figures 1-6 As shown, a new energy conversion vehicle body structure for a diesel locomotive includes a locomotive body 1. The locomotive body 1 adopts the original diesel locomotive body. A chassis steel structure conversion module 2 is set at the bottom of the locomotive body 1, side wall steel structure conversion modules 3 are set on both sides of the locomotive body 1, and a roof steel structure conversion module 4 is set on the top of the locomotive body 1. The chassis steel structure conversion module 2 mainly modifies the original chassis steel structure for applicability and adds new energy battery components. The side wall steel structure conversion module 3 mainly modifies the original side wall structure to adapt to the maintenance of the power system battery pack. The roof steel structure conversion module 4 mainly disassembles the original roof structure and forms a new heat dissipation channel to meet the requirements of the new energy vehicle body.

[0020] The underframe steel structure modification module 2 includes a slide rail battery mounting base 21, a dynamic stress compensation bolt module 22, and a power battery rack base plate 23. The bottom of the locomotive body 1 is symmetrically arranged with slide rail battery mounting bases 21 at equal intervals, and dynamic stress compensation bolt modules 22 are arranged at equal intervals on these bases. The power battery rack base plate 23 is then installed through the dynamic stress compensation bolt modules 22. The slide rail battery mounting base 21 is adaptable to various battery packs, allowing for installation of different specifications and models of battery packs, thus achieving a multi-purpose modification structure. The side wall steel structure modification module 3 involves removing the right side wall of the locomotive body 1 containing the machine room air filter and the side wall containing the cooling room, and transforming them into a honeycomb aluminum composite panel structure wall 7 with an inspection door. This modification is for maintaining the power system battery pack. The honeycomb structure facilitates ventilation and heat dissipation of the battery pack, preventing high temperatures and extending its service life. Simultaneously, the inspection door design makes battery maintenance and replacement convenient, improving maintenance efficiency.

[0021] The roof steel structure modification module 4 includes modifying the top cover of the power compartment of the locomotive body 1, and installing an integrated heat dissipation duct 6 on the top cover. It also involves removing the original cooling chamber top radiator structure and cooling chamber steel structure from the original vehicle body 1, and adding a movable cooling chamber top cover 8, which is hinged to the original auxiliary chamber movable top cover. The integrated heat dissipation duct 6 has an embedded 45° guide vane array, a trapezoidal tapering cross-section, and is coated with paraffin-based phase change material on its inner wall. This modification expands the space for single maintenance operations and integrates the heat dissipation duct 6, with an embedded 45° guide vane array and a paraffin-based phase change material coating on the inner wall, to improve transient heat load handling capacity, enhance heat dissipation efficiency for the power battery pack, and ensure safe operation under high-temperature conditions. The trapezoidal tapering cross-section design allows for smoother airflow, reducing resistance and noise. Compared to traditional ventilation ducts, the trapezoidal tapering duct reduces wind energy loss and energy consumption, improving ventilation efficiency and energy saving.

[0022] In summary, this utility model, on the one hand, improves the structural strength of the internal combustion locomotive body under maximum vertical load after modification, achieving an 82% reuse rate of the original body frame and saving 35% in material costs; on the other hand, the modified body structure effectively enhances the heat dissipation performance of the battery pack, ensuring safe operation even under high-temperature conditions; and based on this structure, other new energy modification products for internal combustion locomotives can be derived, improving modification efficiency.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A new energy reconstruction vehicle body structure of an internal combustion locomotive, comprising a locomotive body (1); characterized in that: The locomotive body (1) adopts the original diesel locomotive body. A chassis steel structure modification module (2) is set at the bottom of the locomotive body (1), a side wall steel structure modification module (3) is set on both sides of the locomotive body (1), and a roof steel structure modification module (4) is set on the top of the locomotive body (1). The chassis steel structure modification module (2) mainly modifies the original chassis steel structure to adapt it to the needs of the power system battery pack. The side wall steel structure modification module (3) mainly modifies the original side wall structure to adapt to the maintenance of the power system battery pack. The roof steel structure modification module (4) mainly dismantles the original roof structure and forms a new heat dissipation channel to meet the needs of the new energy vehicle body.

2. The vehicle body structure for new energy conversion of internal combustion locomotives according to claim 1, characterized in that: The underframe steel structure modification module (2) includes a slide rail battery mounting base (21), a dynamic stress compensation bolt module (22), and a power battery rack base plate (23). The bottom of the locomotive body (1) is symmetrically arranged with slide rail battery mounting bases (21) at equal intervals in the longitudinal direction, and dynamic stress compensation bolt modules (22) are arranged at equal intervals on them. The power battery rack base plate (23) is installed in the longitudinal direction through the dynamic stress compensation bolt modules (22).

3. The vehicle body structure for new energy conversion of internal combustion locomotives according to claim 1, characterized in that: The side wall steel structure modification module (3) includes removing the right side wall with the machine room air filter and the side wall with the cooling room of the locomotive body (1) and modifying it into a honeycomb aluminum composite panel structure wall (7) with an inspection door for the maintenance of the power system battery pack.

4. The vehicle body structure for new energy conversion of internal combustion locomotives according to claim 1, characterized in that: The roof steel structure modification module (4) includes the modification of the top cover of the power room of the locomotive body (1), and an integrated heat dissipation duct (6) is provided on the top cover. The original car body's cooling room top radiator structure and cooling room steel structure are removed, and a cooling room movable top cover (8) is added, which adopts a hinge linkage structure with the original auxiliary room movable top cover.

5. The new energy conversion vehicle body structure for internal combustion locomotives according to claim 4, characterized in that: The integrated heat dissipation duct (6) has an embedded 45° guide vane array, the duct cross section adopts a trapezoidal tapering design, and the inner wall of the duct is coated with paraffin-based phase change material.

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