Lightweight and three-dimensional shock-absorbing structure of mine car power battery

Abstract

The utility model discloses a kind of mine car power battery light weight and three-dimensional shock-absorbing structure, belong to battery structure technical field, including the load-bearing architecture for installing battery pack, the load-bearing architecture is fixedly connected on the frame by bolt;Transverse shock-absorbing component installed between load-bearing architecture and frame;Longitudinal shock-absorbing component installed between load-bearing architecture and frame;Perpendicular shock-absorbing component installed between load-bearing architecture and frame.The utility model has the advantages of light weight, and provides buffer shock-absorbing frame for battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery structure technology, specifically to a lightweight and three-dimensional shock absorption structure for a mining truck power battery. Background Technology

[0002] Currently, the primary method for mounting power batteries under high-load conditions in heavy-duty mining trucks and engineering vehicles is a rigid frame structure to ensure the stability and safety of the battery pack during vehicle operation. Traditional solutions typically use a separate battery pack casing equipped with reinforcing brackets.

[0003] Problems and defects of existing technology 1. Excessive weight of the fixed structure affects the overall vehicle energy efficiency. Existing technology uses a rigid metal frame, with each battery pack having its own independent shell, resulting in an excessively heavy overall battery system. This increased weight not only affects the mining truck's range but also exacerbates the burden on the power system, reducing work efficiency.

[0004] 2. Installation and maintenance are complex, and repair costs are high. Because the battery packs need to be disassembled one by one, involving a large number of bolt connections, frame removal and other steps, replacing the battery pack or performing maintenance requires a lot of manpower and time, which seriously affects the efficiency of the operation.

[0005] 3. Rigid fixing methods cannot effectively buffer external forces. During the operation of mining trucks, especially under dynamic conditions such as turning, acceleration, and braking, traditional rigid frame fixing methods cannot provide effective shock absorption and buffering, which can easily lead to battery pack wear, displacement or damage, affecting battery pack life and safety.

[0006] Traditional solutions focus more on the rigid fixation of batteries and do not take into account the dynamic load changes of mining trucks under complex working conditions.

[0007] Because the battery packs are fixed independently, the system weight increases, and it is not conducive to unified management and quick replacement.

[0008] The lack of full utilization of flexible fixing technology makes the battery pack susceptible to damage in high-impact and high-vibration environments. Utility Model Content

[0009] The present invention aims to solve the technical problems mentioned in the background section above by providing a lightweight and three-dimensional shock-absorbing structure for mining truck power batteries, which uses flexible fixing to provide cushioning even with a lighter battery pack.

[0010] According to the content of this utility model, the technical solution provided by this utility model is: a lightweight and three-dimensional shock absorption structure for a mining truck power battery, comprising: A load-bearing frame for mounting the battery pack is bolted to the vehicle frame; Lateral damping components installed between the load-bearing structure and the vehicle frame; Longitudinal damping components installed between the load-bearing structure and the vehicle frame; Vertical damping components are installed between the load-bearing structure and the vehicle frame.

[0011] In some embodiments, the support structure includes a base frame and a frame, the outer edges of which are fixedly connected to the vehicle frame, and the internal space therein is used to accommodate the battery pack.

[0012] In some embodiments, the vertical damping assembly is installed between the outer edges of the left and right ends of the underframe and the vehicle frame; The lateral damping component is installed between the frame and the vehicle frame; The longitudinal damping component is installed between the frame and the vehicle frame.

[0013] In some embodiments, the lateral damping assembly, longitudinal damping assembly, and vertical damping assembly all adopt the same core structure, which includes a connecting rod, on which two damping pads are sequentially sleeved, and a baffle is provided on the outer side of each of the two damping pads.

[0014] In some embodiments, the shock-absorbing pad is a rubber pad with high resilience and creep resistance.

[0015] In some embodiments, a dual-function side tie rod is further included for connecting the lateral damping assembly to the mine car gantry beam. One end of the dual-function side tie rod is connected to the lateral damping assembly, and the other end is fixed to the mine car gantry beam to provide lateral support and transmit tension.

[0016] In some embodiments, a standard quick-release connection assembly is also included for enabling quick installation and removal of the battery pack.

[0017] In some embodiments, the load-bearing structure is made of high-strength aluminum alloy.

[0018] In some embodiments, the lateral damping components, longitudinal damping components, and vertical damping components may be replaced with intelligent hydraulic or pneumatic damping structures to achieve real-time dynamic adjustment of the damping coefficient.

[0019] The advantages of this utility model compared with the prior art are: 1. The battery pack is fixed by using a dual-function side tie rod and a load-bearing structure, which can effectively reduce the weight of the fixing structure and thus improve economy compared with traditional rigid fixing; 2. The connection point between the load-bearing structure and the battery pack uses bidirectional shock-absorbing pads, which absorb impact force through the flexible structure in the horizontal, vertical and vertical directions, improve battery life and prevent damage.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the lightweight and three-dimensional shock absorption structure of the power battery for mining trucks according to an embodiment of this utility model. Figure 2 for Figure 1 A schematic left view of the lateral damping assembly shown; Figure 3 for Figure 1 A front view schematic diagram of the longitudinal damping assembly shown; Figure 4 for Figure 1 The diagram shows a front view of the load-bearing architecture. In the attached diagram: 1. Dual-function side tie rod; 2. Lateral damping assembly; 3. Longitudinal damping assembly; 4. Vertical damping assembly; 5. Load-bearing frame; 6. Standard quick-release connection assembly; 7. Gantry beam; 8. Chassis.

[0022] 21. Connecting rod; 22. Shock-absorbing pad; 23. Baffle plate; 51. Base frame; 52. Frame. Detailed Implementation

[0023] The present invention will now be described in further detail.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] like Figure 1 , Figure 4 As shown, the supporting structure 5 includes a base frame 51 and a frame 52. The outer edges of the base frame 51 and the frame 52 are fixedly connected to the vehicle frame 8 by bolts. The battery pack is installed inside the base frame 51 and the frame 52.

[0026] Vertical shock absorbers 4 are installed between the outer edges of the left and right ends of the underframe 51 and the fixed frame 8. A transverse shock absorber 2 is installed between the left side frame 52 and the fixed frame 8, and a longitudinal shock absorber 3 is installed between the right side frame 52 and the fixed frame 8. The outer side of the transverse shock absorber 2 is fixed to the gantry beam 7 of the mine car by a dual-function side tie rod 1.

[0027] Figure 1 The back of the battery pack, not shown, has the same architecture as the front of the battery pack shown.

[0028] Combination Figure 2 As shown, the transverse damping structure includes a dual-function side tie rod 1 connected to the gantry beam 7. The left end of the dual-function side tie rod 1 is connected to the right baffle 23 by bolts. The left end of the right baffle 23 is integrally provided with a connecting rod 21. The connecting rod 21 passes through the right damping pad 22, the frame 52, the left damping pad 22, and the left baffle 23 in sequence before being connected to a nut. The damping pad 22 is a rubber pad.

[0029] Taking the steering condition as an example, the function and principle of the lateral damping component 2 are described here.

[0030] The lateral damping component 2 absorbs the steering inertial force through elastic deformation. When turning left or right, the corresponding damping unit is activated respectively. After the steering ends, the two units reset together.

[0031] Taking a left turn as an example, the force analysis is as follows: Figure 2 As shown, F1 represents the lateral inertial force. When the mine car turns, the battery pack is subjected to centrifugal force, resulting in a tendency for lateral displacement. The rigid structure of the gantry provides high-strength support to resist the lateral inertial force.

[0032] F2 is the steering thrust provided by the gantry to the battery pack when turning left. The right shock absorber 22 is deformed under pressure and absorbs the lateral impact energy through elastic deformation. After the turn, the elastic restoring force of the shock-absorbing pads 22 on both sides works together to make the buffer device rebound to its initial state, keeping the battery pack stable and centered.

[0033] Combination Figure 3 As shown, the longitudinal damping component 3 has the same structure as the transverse damping component 2, except that the longitudinal damping component 3 is installed perpendicular to the transverse damping component 2 and is on the same horizontal plane.

[0034] Figure 3 The left end of the longitudinal damping component 3 shown is connected to the frame 8.

[0035] Taking variable speed operation as an example, the function and principle of longitudinal damping component 3 are described here.

[0036] Longitudinal stress buffer system: During acceleration: Right shock absorber pad 22 compresses and stores energy; During braking: the left shock absorber pad 22 compresses and stores energy; When moving at a constant speed or stationary: the bidirectional damping pad 22 couples and resets; like Figure 3 The following is a longitudinal force analysis for acceleration / braking: Acceleration mode: The longitudinal inertial force pushes the battery pack backward, which is subjected to a force in the direction of F2. The right shock absorber 22 is deformed under pressure and absorbs kinetic energy through compression. The left damping pad 22 is restricted from excessive displacement by the preload and is subjected to a force in the direction of F1. When moving at a constant speed, the left and right damping pads 22 work together to reset.

[0037] Braking conditions: The longitudinal inertial force causes the battery pack to be thrust forward by a force in the F1 direction, and the left shock absorber 22 is compressed and deformed to absorb the impact. The right shock absorber 22 is subjected to tensile force to maintain tension balance and is subjected to force in the direction of F2 to prevent structural overload.

[0038] The cushioning pad is made of rubber, which has high resilience and creep resistance, and can maintain its shape stability even after long-term cycling.

[0039] like Figure 4 As shown, the structure of the vertical shock absorber 4 is the same as that of the horizontal shock absorber 2. The difference is that when the mine car is in a horizontal position, the vertical shock absorber 4 is installed in a vertical direction.

[0040] The lower end of the vertical shock absorber assembly 4 is fixed to the frame 8. The connecting rod 21 of the vertical shock absorber assembly 4 connects the lower baffle 23, the lower shock absorber pad 22, the base frame 51, the upper shock absorber pad 22 and the upper baffle in sequence from bottom to top.

[0041] It has a good shock absorption effect on uphill, downhill and bumpy roads.

[0042] The vertical shock absorber 4 disperses the impact energy from the road surface through the rapid compression and rebound of the upper and lower buffer pads. When encountering a convex obstacle, the lower buffer pad is compressed and deformed; when encountering a concave pit, the upper buffer pad is stretched to relieve the force.

[0043] Uphill: The weight of the battery pack causes it to tilt backward along the slope direction and is subjected to a force in the direction of F1. The vertical shock absorption component 4 and the lower shock absorption pad 22 are compressed and deformed to resist the backward tilting force. Downhill: The forward tilt component of gravity is absorbed by the buffer pad above the vertical shock absorption component 4, which compresses and absorbs the force in the F2 direction, preventing the battery pack from moving; Reset capability: When the slope returns to a flat road, the elastic force of the buffer pad pushes the bracket back into place, ensuring that the battery pack fits tightly against the vehicle body.

[0044] Furthermore, in pursuit of lightweight design, high-strength aluminum alloy materials can be used to replace part of the load-bearing structure 5 to further reduce weight.

[0045] Furthermore, intelligent hydraulic or pneumatic damping structures are used to replace the transverse, longitudinal, and vertical damping components 4, so as to dynamically adjust the damping coefficient of the battery pack fixing frame in real time and improve adaptability.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lightweight and three-dimensional vibration damping structure for a mining truck power battery, characterized in that, include: A support frame (5) for mounting the battery pack is bolted to the frame (8); The lateral damping assembly (2) is installed between the load-bearing structure (5) and the frame (8); The longitudinal damping assembly (3) is installed between the load-bearing structure (5) and the frame (8); Vertical damping assembly (4) is installed between the load-bearing structure (5) and the frame (8).

2. The lightweight and three-dimensional shock absorption structure for mining truck power batteries according to claim 1, characterized in that, The supporting structure (5) includes a base frame (51) and a frame (52), the outer edges of which are fixedly connected to the vehicle frame (8), and the internal space is used to accommodate the battery pack.

3. The lightweight and three-dimensional shock absorption structure for mining truck power batteries according to claim 2, characterized in that: The vertical shock absorber (4) is installed between the outer edges of the left and right ends of the base frame (51) and the vehicle frame (8); The lateral damping component (2) is installed between the frame (52) and the chassis (8); The longitudinal damping component (3) is installed between the frame (52) and the chassis (8).

4. The lightweight and three-dimensional shock absorption structure for mining truck power batteries according to claim 1, characterized in that, The transverse damping component (2), longitudinal damping component (3) and vertical damping component (4) all adopt the same core structure, which includes a connecting rod (21). Two damping pads (22) are sequentially sleeved on the connecting rod (21), and a baffle (23) is provided on the outer side of each of the two damping pads (22).

5. The lightweight and three-dimensional shock absorption structure for mining truck power batteries according to claim 4, characterized in that, The shock-absorbing pad (22) is a rubber pad with high resilience and creep resistance.

6. The lightweight and three-dimensional shock absorption structure for mining truck power batteries according to claim 1, characterized in that, It also includes a dual-function side tie rod (1) for connecting the lateral damping assembly (2) to the mine car gantry beam (7). One end of the dual-function side tie rod (1) is connected to the lateral damping assembly (2), and the other end is fixed to the mine car gantry beam (7) to provide lateral support and transmit tension.

7. The lightweight and three-dimensional shock absorption structure for mining truck power batteries according to claim 1, characterized in that, It also includes a standard quick-release connector (6) for enabling quick installation and removal of the battery pack.

8. The lightweight and three-dimensional shock-absorbing structure for the power battery of a mining truck according to any one of claims 1 to 7, characterized in that, The supporting structure (5) is made of high-strength aluminum alloy.

9. The lightweight and three-dimensional shock absorption structure for mining truck power batteries according to any one of claims 1 to 7, characterized in that, The transverse damping component (2), longitudinal damping component (3) and vertical damping component (4) can be replaced with intelligent hydraulic or pneumatic damping structures to achieve real-time dynamic adjustment of the damping coefficient.

10. A mining car, characterized in that, The mining truck power battery is equipped with a lightweight and three-dimensional shock absorption structure as described in any one of claims 1 to 9.

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