A battery pack carrier device

Abstract

The utility model discloses a kind of battery pack bearing devices, including frame body, support frame on the frame body, support block is slidably connected on the support frame;Throughway guide rod is equipped between the crossbeam of the frame body and support frame;Further include the driving mechanism for adjusting the axial displacement of support frame on guide rod.The utility model replaces the open type, adjustable frame type support structure by traditional solid tray, so that battery pack is fixed while its bottom is exposed in large area suspension.This design perfectly replicates the real working condition of battery pack under the whole vehicle chassis, so as to ensure that in salt fog, damp heat, temperature impact and other tests, the bottom of battery pack can be in full contact with the environment, so that its corrosion resistance and thermal management performance can be verified truly and effectively.

Description

Technical Field

[0001] This utility model relates to the field of vehicle battery pack testing technology, and in particular to a battery pack carrying device. Background Technology

[0002] During the research and development and verification phase of the battery pack, it is necessary to conduct rigorous environmental reliability tests, such as salt spray test, damp heat cycling, and temperature shock, to evaluate the corrosion resistance of its casing; at the same time, thermal management tests are also required to analyze the temperature field distribution and changes of the entire pack in the environment.

[0003] Currently, in laboratory tests, the battery pack is typically placed directly on a solid tray, which is then placed into the test chamber. This arrangement results in the entire bottom surface of the battery pack being in close contact with the tray surface, thus shielding it from the corrosive gases, temperature, and humidity environment inside the test chamber. However, in real-world applications, battery packs are often located under the chassis of passenger vehicles, connected to the vehicle body via mounting beams, with the top cover integrated with the body, leaving the bottom of the battery pack exposed to the air and road conditions.

[0004] Therefore, existing testing methods cannot realistically simulate the actual working conditions of battery packs, especially failing to effectively verify the corrosion resistance of the battery pack's bottom and the heat exchange process with the environment, severely impacting the accuracy and reliability of test results. Furthermore, the diverse sizes and specifications of battery packs on the market, coupled with the lack of universality in fixed tray structures, lead to low testing efficiency and increased costs. Utility Model Content

[0005] The purpose of this invention is to provide a battery pack support device that uses an adjustable frame to fix the battery pack in a suspended manner, fully exposing its bottom to the test environment, thus effectively simulating its real-world condition on a vehicle frame during normal use. This universal bracket is flexibly adjustable in length, width, and height, combining versatility with high simulation accuracy. It solves the problems of corrosion and temperature field distortion caused by bottom shielding in traditional tray testing, significantly improving the reliability and accuracy of the verification results.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A battery pack support device includes a frame, a support frame disposed on the frame, a support block slidably connected to the support frame, a guide rod passing through the crossbeam of the frame and the support frame, and a drive mechanism for adjusting the axial displacement of the support frame on the guide rod.

[0007] A further embodiment: The support frame includes two parallel first side beams and two parallel second side beams, with the ends of the first side beams and the second side beams being movably connected.

[0008] A further solution: T-slots are provided on both the first and second side beams, and the support block and the support frame are slidably connected by nuts pre-embedded in the T-slots.

[0009] A further solution includes a protective cloth placed above the support frame; the protective cloth is detachably connected to the frame on all four sides.

[0010] A further embodiment: the guide rod is a lead screw, with its top movably connected to the crossbeam, its middle threadedly connected to the support frame, and its bottom connected to the drive mechanism.

[0011] A further embodiment: There are two guide rods, each connected to one of the two first side beams; the driving mechanism includes a transmission rod connected to the bottom of the two guide rods, a first bevel gear located at the bottom of the guide rod, a second bevel gear sleeved on the transmission rod, and a handwheel that drives the transmission rod to rotate; the first bevel gear meshes with the second bevel gear.

[0012] A further solution: A scale is installed on the first side beam.

[0013] A further solution: The guide rod is also equipped with a displacement sensor.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention replaces the traditional solid tray with an open, adjustable frame support structure, allowing a large area of ​​the battery pack's bottom to be exposed while it is secured. This design perfectly replicates the actual working state of the battery pack under the vehicle chassis, ensuring that the bottom of the battery pack is in full contact with the environment during tests such as salt spray, damp heat, and temperature shock, thus providing real and effective verification of its corrosion resistance and thermal management performance.

[0015] Secondly, this solution enables reliable adjustment of the fixed height of the battery pack, achieving rapid and precise adaptation to battery packs of various sizes. This not only solves the pain point of requiring laboratories to customize special trays for different battery packs, significantly improving the versatility of the equipment and testing efficiency, but also ensures the safety, convenience, and repeatability of the operation due to the stability and self-locking properties during the height adjustment process. Attached Figure Description

[0016] Figure 1 and Figure 2 These are three-dimensional structural diagrams of the present invention from different angles; Figure 3 This is a partially enlarged view of the drive mechanism in this utility model; Figure 4 This is a top view of the present invention; In the diagram: 1-Frame, 11-Crossbeam, 2-Support frame, 21-First side beam, 22-Second side beam, 23-T-slot, 24-Scale, 3-Support block, 4-Guide rod, 5-Drive mechanism, 51-Transmission rod, 52-First bevel gear, 53-Second bevel gear, 54-Handwheel, 6-Protective cloth, 7-Displacement sensor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-4 In this embodiment, a battery pack support device includes a frame 1, a support frame 2 mounted on the frame 1, and a support block 3 slidably connected to the support frame 2. A guide rod 4 passes through the crossbeam 11 of the frame 1 and the support frame 2. It also includes a drive mechanism 5 for adjusting the axial displacement of the support frame 2 on the guide rod 4. By setting a support frame 2 that can move axially along the guide rod 4, the bottom of the battery pack can be suspended and exposed to the test environment, realistically simulating the installation state of the battery pack under the vehicle chassis. This effectively solves the problems of bottom corrosion and temperature field test distortion caused by traditional tray shielding, significantly improving test accuracy. The position of the support block 3 on the support frame 2 is adjustable, achieving precise positioning of the support point to meet the installation requirements of different battery packs, thereby ensuring the accuracy and versatility of the test.

[0020] Furthermore, the support frame 2 includes two parallel first side beams 21 and two parallel second side beams 22. The ends of the first side beams 21 and the second side beams 22 are movably connected (and locked with fasteners after adjustment; adjustment holes are pre-drilled on the side beams). The movably connected first side beams 21 and second side beams 22 enable flexible adjustment of the support frame 2 in both length and width directions, allowing it to accommodate battery packs of various sizes and enhancing the versatility and practicality of the bracket.

[0021] Furthermore, T-slots 23 are provided on both the first side beam 21 and the second side beam 22, and the support block 3 and the support frame 2 are slidably connected by nuts pre-embedded in the T-slots 23. Through the cooperation of the T-slots 23 and the pre-embedded nuts, the support block 3 can be quickly and stably positioned and flexibly moved on the support frame 2, avoiding the cumbersome operation caused by nut disassembly and improving adjustment efficiency.

[0022] Furthermore, it also includes a protective cloth 6 located above the support frame 2; the protective cloth 6 is detachably connected to the frame 1 on all four sides. With the detachable protective cloth 6, it can be quickly installed or removed according to testing needs, simulating different environmental conditions (such as rain protection and dust protection), thus expanding the functional applicability of the bracket.

[0023] Furthermore, the guide rod 4 is a lead screw, with its top movably connected to the crossbeam 11, its middle threadedly connected to the support frame 2, and its bottom connected to the drive mechanism 5. By setting the guide rod 4 as a lead screw structure and cooperating with the drive mechanism 5, the height of the support frame 2 can be controllably adjusted, and the self-locking characteristic of the lead screw ensures the stability and safety after adjustment.

[0024] Furthermore, there are two guide rods 4, which are respectively connected to two first side beams 21; the drive mechanism 5 includes a transmission rod 51 connected to the bottom end of the two guide rods 4, a first bevel gear 52 located at the bottom of the guide rod 4, a second bevel gear 53 sleeved on the transmission rod 51, and a handwheel 54 that drives the transmission rod 51 to rotate; the first bevel gear 52 meshes with the second bevel gear 53.

[0025] The operating principle of this drive mechanism 5 is as follows: through a bevel gear transmission system, the manual rotational motion input by the operator at one position is converted into the synchronous rotation of two guide rods (i.e., lead screws) 4, thereby converting the rotational motion into the linear lifting and lowering motion of the support frame 2. The use of double guide rods 4 in conjunction with the bevel gear transmission mechanism achieves the synchronous lifting and lowering of the first side beams 21 on both sides, avoiding tilting of the support frame 2 caused by unilateral misalignment, ensuring the stability of the battery pack posture, and improving the reliability of the test.

[0026] Furthermore, a scale 24 is provided on the first side beam 21. By setting the scale 24 on the first side beam 21, the operator can intuitively read the displacement value of the support block 3, achieving quick and accurate positioning, avoiding repeated measurements, and improving adjustment efficiency.

[0027] Furthermore, a displacement sensor 7 is also provided on the guide rod 4. By setting the displacement sensor 7 on the guide rod 4, the height adjustment amount can be measured and digitally displayed in real time, further improving the adjustment accuracy and ease of operation, and reducing human reading errors.

[0028] In use, firstly, place the test bracket stably inside the test chamber or on the test station, ensuring the tray is level. Observe the position and size of the mounting points at the bottom of the battery pack, loosen the fastening screws in the T-slot, and slide the first side beam 21 and the second side beam 22 to adjust the overall length and width of the support frame 2. Then, slide each support block 3 to move it on the beam, precisely aligning it with the four (or more) mounting points at the bottom of the battery pack. After alignment, tighten all fastening screws to lock the support blocks 3 and the support frame 2. Determine the simulated support height for this test based on the ground clearance of the battery pack in the vehicle's condition. Turn the handwheel 51 to adjust the height of the support frame 2. During adjustment, observe the digital display on the displacement sensor 7 on the guide rod 4 to precisely adjust the height of the support frame 2 to the target value. After adjustment, the self-locking characteristic of the lead screw and bevel gear mechanism will automatically prevent the height from falling back. Use a crane or forklift to smoothly lift the battery pack and slowly lower it, aligning the mounting holes (or mounting surfaces) at the bottom with the adjusted support blocks 3. Place the battery pack securely on support block 3 and fasten it to support block 3 using the original mounting bolts or clamps to simulate its fixed state on the vehicle. If required for testing (such as water splash test), install the four corners of the protective cloth 6 onto the frame 1. Then conduct the relevant tests.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0030] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A battery pack carrying device, characterized in that, It includes a frame (1) and a support frame (2) disposed on the frame (1), with a support block (3) slidably connected to the support frame (2); a guide rod (4) is provided through the crossbeam (11) of the frame (1) and the support frame (2); it also includes a drive mechanism (5) for adjusting the axial displacement of the support frame (2) on the guide rod (4).

2. The battery pack carrying device according to claim 1, characterized in that, The support frame (2) includes two parallel first side beams (21) and two parallel second side beams (22), with the ends of the first side beams (21) and the second side beams (22) being movably connected.

3. The battery pack carrying device according to claim 2, characterized in that, Both the first side beam (21) and the second side beam (22) are provided with T-slots (23), and the support block (3) and the support frame (2) are slidably connected by nuts pre-embedded in the T-slots (23).

4. The battery pack carrying device according to claim 1, characterized in that, It also includes a protective cloth (6) located above the support frame (2); the protective cloth (6) is detachably connected to the frame (1) around its perimeter.

5. The battery pack carrying device according to claim 1, characterized in that, The guide rod (4) is a lead screw, with its top connected to the crossbeam (11), its middle connected to the support frame (2) by a thread, and its bottom connected to the drive mechanism (5).

6. The battery pack carrying device according to claim 2, characterized in that, There are two guide rods (4), which are connected to two first side beams (21) respectively; the driving mechanism (5) includes a transmission rod (51) connected to the bottom end of the two guide rods (4), a first bevel gear (52) located at the bottom of the guide rod (4), a second bevel gear (53) sleeved on the transmission rod (51), and a handwheel (54) that drives the transmission rod (51) to rotate; the first bevel gear (52) meshes with the second bevel gear (53).

7. The battery pack carrying device according to claim 2, characterized in that, A scale (24) is provided on the first side beam (21).

8. The battery pack carrying device according to claim 1, characterized in that, The guide rod (4) is also equipped with a displacement sensor (7).

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