A protective device for heavy hybrid vehicle batteries

By designing a protective enclosure and incorporating shock absorption and cooling mechanisms, the problem of damage to the battery pack in hybrid locomotives and the risk of fire during severe bumps or collisions has been solved, achieving stable installation and efficient protection.

CN224595696UActive Publication Date: 2026-08-04DALIAN TOSHIBA LOCOMOTIVE ELECTRIC EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN TOSHIBA LOCOMOTIVE ELECTRIC EQUIP CO LTD
Filing Date
2025-08-29
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional hybrid locomotive battery packs have poor shock resistance after installation, making them susceptible to damage from severe bumps or collisions, which can lead to fires and compromise safety.

Method used

The protective enclosure design includes components such as partitions, shock-absorbing pads, shock-absorbing blocks, buffer pads, and electric push rods, combined with a cooling mechanism to achieve stable installation and efficient shock absorption protection.

Benefits of technology

It improves the installation stability and safety of the power battery device, avoids damage and fire risks, and ensures efficient shock absorption and heat dissipation protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to battery protection technical field, especially a kind of protective device for heavy hybrid vehicle battery, it includes protective box and power storage battery device, the protective device further includes: baffle, the baffle fixed mounting is in the inner wall of protective box;Damping pad, the damping pad fixed mounting is at the top of baffle, the top of damping pad is fixedly installed with multiple shock absorbers, power storage battery device is placed at the top of multiple shock absorbers;Mounting mechanism, the mounting mechanism includes: two electric push rods, two moving plates, two lead screws, two moving rods, two supports, four pressing plates and four buffer pads, the utility model is through simple structure to realize the start dismounting of power storage battery device, not only can guarantee the stability after power storage battery device installation, simultaneously, it can be after power storage battery device installation Realize the efficient shock absorption protection of power storage battery device, and safety and practicality are strong.
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Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, and in particular to a protective device for batteries of hybrid locomotives. Background Technology

[0002] Hybrid locomotives, also known as heavy-duty hybrid locomotives, typically combine multiple power sources (such as diesel and electricity) to provide greater power and higher energy efficiency. Hybrid locomotives are commonly found in industries such as railways and mining that require high-load or long-distance transport.

[0003] The power battery unit is mainly used for locomotive traction and auxiliary machine load power supply. The unit includes battery modules, battery control system, protection circuit and water cooling components; the power battery unit can handle the following four operating conditions: standby condition, single machine operation condition, locomotive traction condition and braking energy recovery condition.

[0004] In the prior art, traditional power battery devices have poor impact resistance after installation. Severe bumps or collisions may damage the power battery device and cause a fire, resulting in poor safety and failing to meet the usage requirements. Therefore, this application proposes a protective device for hybrid locomotive batteries to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as poor impact resistance of traditional power battery devices after installation, which may lead to damage and fire caused by severe bumps or collisions, resulting in poor safety and failure to meet usage requirements. Therefore, this invention proposes a protective device for hybrid locomotive batteries.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A protective device for a hybrid locomotive battery includes a protective box and a power battery pack. The protective device further includes:

[0008] A partition, which is fixedly installed on the inner wall of the protective box;

[0009] The shock-absorbing pad is fixedly installed on the top of the partition, and multiple shock-absorbing blocks are fixedly installed on the top of the shock-absorbing pad. The power battery device is placed on top of the multiple shock-absorbing blocks.

[0010] The installation mechanism includes: two electric push rods, two movable plates, two lead screws, two movable rods, two brackets, four pressure plates, and four buffer pads. The two electric push rods are fixedly installed on the top of the partition, and the two movable plates are slidably connected to the top of the partition. The output shafts of the two electric push rods are respectively fixedly installed on the opposite sides of the two movable plates. The bottom end of the lead screw is rotatably connected to the top of the corresponding movable plate. The movable rod is threaded onto the corresponding lead screw. The bracket is fixedly installed at the bottom of the corresponding movable rod. One side of the two pressure plates located on the same side is fixedly installed on the corresponding bracket. The top of the buffer pad is fixedly installed at the bottom of the corresponding pressure plate. The bottom of the four buffer pads are in contact with the power battery device.

[0011] A cooling mechanism is installed on the top inner wall of the protective box and works in conjunction with the power battery device.

[0012] As a preferred embodiment of this utility model, a module installation area is provided between the inner wall of the protective box and the partition.

[0013] As a preferred embodiment of this utility model, the top of the partition is provided with four sliding grooves, and the bottom of the movable plate is slidably connected to two sliding grooves located on the same side.

[0014] As a preferred embodiment of this utility model, two sliding shafts are fixedly installed on the top of the movable plate, and the top ends of the sliding shafts pass through the corresponding brackets and are slidably connected to the brackets.

[0015] As a preferred embodiment of this utility model, the cooling mechanism includes a duct, a mounting pipe, and a fan. The left and right ends of the duct penetrate the left and right inner walls of the protective box, respectively, and extend to the outside of the protective box. The top end of the mounting pipe is fixedly connected to the bottom of the duct. The fan is fixedly installed inside the mounting pipe and corresponds to the power battery device.

[0016] As a preferred embodiment of this utility model, dustproof nets are installed at both the left and right ends of the air duct.

[0017] As a preferred embodiment of this utility model, a plurality of cooling plates are fixedly installed at the bottom end of the mounting tube.

[0018] Beneficial effects:

[0019] 1. In order to solve the problem of poor protection of power battery devices, the combination of shock-absorbing pads, multiple shock-absorbing blocks and four buffer pads can not only achieve stable installation and fixation of power battery devices, but also achieve efficient shock absorption protection when power battery devices are subjected to severe impacts, so as to avoid damage to power battery devices and fire, and greatly improve the safety of power battery devices.

[0020] This utility model achieves the initial assembly and disassembly of the power battery device through a simple structure. It not only ensures the stability of the power battery device after installation, but also provides efficient shock absorption protection for the power battery device after installation, making it highly safe and practical. Attached Figure Description

[0021] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0022] Figure 2 This is a three-dimensional main sectional view of the structure of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the partition, shock-absorbing pad, shock-absorbing block, power battery device, electric push rod, moving plate, slide groove, lead screw, moving rod, bracket, sliding shaft, pressure plate and buffer pad of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the air duct, dustproof net, installation pipe, fan, and cooling element of this utility model.

[0025] In the diagram: 1. Protective box; 2. Partition plate; 3. Module installation area; 4. Vibration damping pad; 5. Vibration damping block; 6. Power battery device; 7. Electric push rod; 8. Moving plate; 9. Slide groove; 10. Lead screw; 11. Moving rod; 12. Bracket; 13. Sliding shaft; 14. Pressure plate; 15. Buffer pad; 16. Air duct; 17. Dustproof net; 18. Installation pipe; 19. Fan; 20. Cooling plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example

[0028] Reference Figures 1-4 A protective device for a hybrid locomotive battery includes a protective housing 1 and a power battery unit 6. The protective device further includes:

[0029] Partition 2 is fixedly installed on the inner wall of the protective box 1;

[0030] The shock-absorbing pad 4 is fixedly installed on the top of the partition 2. Multiple shock-absorbing blocks 5 are fixedly installed on the top of the shock-absorbing pad 4. The power battery device 6 is placed on the top of the multiple shock-absorbing blocks 5.

[0031] The mounting mechanism includes: two electric push rods 7, two movable plates 8, two lead screws 10, two movable rods 11, two brackets 12, four pressure plates 14, and four buffer pads 15. The two electric push rods 7 are fixedly installed on the top of the partition 2. The two movable plates 8 are slidably connected to the top of the partition 2. The output shafts of the two electric push rods 7 are respectively fixedly installed on the opposite sides of the two movable plates 8. The bottom end of the lead screw 10 is rotatably connected to the top of the corresponding movable plate 8. The movable rod 11 is threaded onto the corresponding lead screw 10. The bracket 12 is fixedly installed on the bottom of the corresponding movable rod 11. One side of the two pressure plates 14 located on the same side is fixedly installed on the corresponding bracket 12. The top of the buffer pad 15 is fixedly installed on the bottom of the corresponding pressure plate 14. The bottom of the four buffer pads 15 are in contact with the power battery device 6.

[0032] The cooling mechanism is located on the top inner wall of the protective box 1 and works in conjunction with the power battery device 6.

[0033] To address the issue of poor protection in the power battery device 6, such as... Figure 2 As shown, when the power battery device 6 is placed on top of multiple shock-absorbing blocks 5, activating the two electric push rods 7 can drive the two moving plates 8 to move closer together. Then, rotating the two lead screws 10 in sequence, through the threaded connection between the lead screws 10 and the moving rods 11, can drive the bracket 12, the two pressure plates 14, and the two buffer pads 15 to move down. At this time, the pressure plates 14 press and fix the power battery device 6. Here, through the cooperation between the shock-absorbing pads 4, multiple shock-absorbing blocks 5, and four buffer pads 15, not only can the stable installation and fixation of the power battery device 6 be achieved, but also efficient shock absorption protection can be achieved when the power battery device 6 is subjected to severe impact, avoiding damage to the power battery device 6 and causing a fire, greatly improving the safety of the power battery device 6.

[0034] To facilitate the installation of relevant modules, components, and wiring of the power storage battery device 6, a module installation area 3 is provided between the inner wall of the protective box 1 and the partition 2.

[0035] To improve the stability of the movement of the movable plate 8, four grooves 9 are provided on the top of the partition plate 2, and the bottom of the movable plate 8 is slidably connected to two grooves 9 located on the same side.

[0036] To improve the movement stability of the support 12, two sliding shafts 13 are fixedly installed on the top of the movable plate 8. The top of the sliding shaft 13 passes through the corresponding support 12 and is slidably connected to the support 12.

[0037] To cool the power battery device 6, the fan 19 is activated to blow air onto the power battery device 6 through the mounting pipe 18, thereby achieving wind-driven heat dissipation of the power battery device 6 and providing efficient heat dissipation protection for the power battery device 6. The cooling mechanism includes a duct 16, a mounting pipe 18, and a fan 19. The left and right ends of the duct 16 penetrate the left and right inner walls of the protective box 1, respectively, and extend to the outside of the protective box 1. The top end of the mounting pipe 18 is fixedly connected to the bottom of the duct 16. The fan 19 is fixedly installed inside the mounting pipe 18 and corresponds to the power battery device 6.

[0038] To prevent external dust from being sucked into the protective box 1 by the fan 19, dustproof nets 17 are installed at both the left and right ends of the air duct 16.

[0039] In order to improve the cooling efficiency and effect of the fan 19 on the power battery device 6, multiple cooling fins 20 are fixedly installed at the bottom of the mounting pipe 18.

[0040] It should be noted that the specific models of the power battery device 6, electric actuator 7, fan 19, and cooling plate 20 used shall be selected by those skilled in the art. Furthermore, the power battery device 6, electric actuator 7, fan 19, and cooling plate 20 mentioned above are all existing technologies and will not be elaborated upon in this solution.

[0041] The working principle of this utility model is as follows: In use, first connect the power battery device 6, electric push rod 7, fan 19, and cooling plate 20 to an external power source. Then, when the power battery device 6 is placed on top of multiple shock-absorbing blocks 5, activating the two electric push rods 7 will cause the two moving plates 8 to move closer together. Then, rotating the two lead screws 10 in sequence, through the threaded connection between the lead screws 10 and the moving rods 11, will cause the bracket 12, two pressure plates 14, and two buffer pads 15 to move downwards. The pressure plates 14 then press and fix the power battery device 6 in place. This is achieved through the shock-absorbing pads 4 and multiple shock-absorbing blocks 5. The cooperation between the four buffer pads 15 not only enables the stable installation and fixation of the power battery device 6, but also provides efficient shock absorption protection when the power battery device 6 is subjected to severe impact, preventing damage to the power battery device 6 and causing a fire, thus greatly improving the safety of the power battery device 6. By starting the fan 19, air can be blown onto the power battery device 6 through the mounting pipe 18. At the same time, by setting multiple cooling fins 20, the temperature of the air blown out by the fan 19 can be reduced, thereby achieving wind power heat dissipation of the power battery device 6 and providing efficient heat dissipation protection for the power battery device 6.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective device for heavy off-road vehicle batteries, comprising a protective box (1) and a power storage device (6), characterized in that, The protective device also includes: Partition (2), which is fixedly installed on the inner wall of the protective box (1); The shock-absorbing pad (4) is fixedly installed on the top of the partition (2), and multiple shock-absorbing blocks (5) are fixedly installed on the top of the shock-absorbing pad (4). The power battery device (6) is placed on the top of the multiple shock-absorbing blocks (5). The installation mechanism includes: two electric push rods (7), two movable plates (8), two lead screws (10), two movable rods (11), two brackets (12), four pressure plates (14) and four buffer pads (15). The two electric push rods (7) are fixedly installed on the top of the partition (2). The two movable plates (8) are slidably connected to the top of the partition (2). The output shafts of the two electric push rods (7) are respectively fixedly installed on the side of the two movable plates (8) that are far apart from each other. The bottom end of the lead screw (10) is rotatably connected to the top of the corresponding movable plate (8). The movable rod (11) is threaded onto the corresponding lead screw (10). The bracket (12) is fixedly installed at the bottom of the corresponding movable rod (11). One side of the two pressure plates (14) located on the same side is fixedly installed on the corresponding bracket (12). The top of the buffer pad (15) is fixedly installed at the bottom of the corresponding pressure plate (14). The bottom of the four buffer pads (15) are in contact with the power battery device (6). The cooling mechanism is installed on the top inner wall of the protective box (1) and is in conjunction with the power battery device (6).

2. A protective device for a heavy mix vehicle battery as defined in claim 1, wherein A module installation area (3) is provided between the inner wall of the protective box (1) and the partition (2).

3. A protective device for a heavy mix vehicle battery as defined in claim 1, wherein The top of the partition (2) is provided with four sliding grooves (9), and the bottom of the movable plate (8) is slidably connected to two sliding grooves (9) located on the same side.

4. A protective device for a heavy mix vehicle battery as defined in claim 1, wherein Two sliding shafts (13) are fixedly installed on the top of the movable plate (8). The top of the sliding shaft (13) passes through the corresponding bracket (12) and is slidably connected to the bracket (12).

5. A protective device for a heavy mix vehicle battery as defined in claim 1 wherein, The cooling mechanism includes a duct (16), a mounting pipe (18), and a fan (19). The left and right ends of the duct (16) pass through the left and right inner walls of the protective box (1) and extend to the outside of the protective box (1), respectively. The top end of the mounting pipe (18) is fixedly connected to the bottom of the duct (16). The fan (19) is fixedly installed inside the mounting pipe (18). The fan (19) corresponds to the power battery device (6).

6. A protective device for a heavy mix vehicle battery as defined in claim 5, wherein Dustproof nets (17) are installed at both the left and right ends of the air duct (16).

7. A protective device for a heavy mix vehicle battery as defined in claim 5 wherein, Multiple cooling elements (20) are fixedly installed at the bottom end of the mounting tube (18).