A charging and discharging test device for power batteries of new energy vehicles

Abstract

This utility model provides a charging and discharging testing device for a new energy vehicle power battery, relating to the field of power battery testing technology. It includes a mounting frame with a long strip clamp slidably mounted inside. A push-in bolt is rotatably mounted through the middle portion of the mounting frame, engaging with the long strip clamp via a threaded connection. Two square sliding sleeves are slidably mounted on a long side rod of the mounting frame, with power connectors fixedly mounted on each sleeve. The long strip clamp and the inner sides of the two square sliding sleeves are in abutting contact. The top of the test platform is used to place the battery pack to be tested. Two power connectors are fixedly mounted on a short side wall of the battery pack shell, with the two power connectors corresponding to and connected to the two power connectors. This charging and discharging testing device overcomes the technical obstacles caused by the sliding adjustment of the two square sliding sleeves and successfully establishes a positioning mechanism for synchronously tightening and loosening the two power connectors, demonstrating significant technological advancement.

Description

Technical Field

[0001] This utility model relates to the field of power battery testing technology, and in particular to a charging and discharging testing device for power batteries of new energy vehicles. Background Technology

[0002] With the continuous expansion of the new energy vehicle market, the charge-discharge performance, cycle life, and safety of power batteries have become the focus of industry attention. To meet the urgent needs of the new energy vehicle industry for power battery testing, it is necessary to design a charge-discharge testing device for new energy vehicle power batteries.

[0003] The power connectors on existing testing devices are often designed to be adjustable by sliding to accommodate the different spacing of the female connectors on the battery pack under test. However, the sliding design of the power connectors makes it difficult to set up a positioning mechanism that can be tightened and loosened simultaneously. This means that the power connectors need to be tightened and loosened step by step before and after the two power connectors are adjusted, which is cumbersome and inconvenient to use, and indirectly reduces the adjustment efficiency of the two power connectors. Utility Model Content

[0004] In view of this, the present invention provides a charging and discharging test device for a new energy vehicle power battery to solve the problem of difficulty in setting up a positioning mechanism that can be simultaneously tightened and loosened for two power connectors.

[0005] The technical solution proposed by this utility model is: a charging and discharging test device for a new energy vehicle power battery, specifically including a mounting frame, wherein a long strip clamp is slidably installed inside the mounting frame;

[0006] A push bolt is rotatably mounted through the middle part of the mounting frame, and the push bolt engages with the long strip clamp plate through the threaded part; two square sliding sleeves are slidably mounted on one long side rod of the mounting frame, and power plugs are fixedly mounted on the square sliding sleeves; the long strip clamp plate is pressed against the inner side of the two square sliding sleeves.

[0007] Furthermore, it also includes a test stand, the top of which is used to place the battery pack to be tested. Two power connectors are fixedly installed on a short side wall of the battery pack shell, and the two power connectors are connected to the two power connectors.

[0008] Furthermore, two longitudinal guide shafts are symmetrically welded to the bottom of the test platform, and two U-shaped sliding frames are slidably installed on the two longitudinal guide shafts. The first ends of the two U-shaped sliding frames are welded with mounting frames, and a horizontal handle is welded between the bends of the two U-shaped sliding frames.

[0009] Furthermore, a baffle is welded to the top and bottom of the test stand, and the battery pack abuts against the baffle.

[0010] Furthermore, a charge / discharge tester is fixedly installed at a corner of the top of the test bench near the mounting frame.

[0011] Furthermore, the charge / discharge tester is electrically connected to two power plugs via wires.

[0012] Furthermore, two limiting short shafts are symmetrically welded at both ends of the inner side of the mounting frame, and the two ends of the long strip clamp slide in cooperation with the two limiting short shafts.

[0013] The present invention provides a charging and discharging testing device for power batteries of new energy vehicles, which has the following beneficial effects:

[0014] First, the two square sliding sleeves can be adjusted in position along the long side rod of the mounting frame to adapt to and connect with two power connectors with different spacing on battery packs of the same type but different specifications. This helps to improve the compatibility of the charge and discharge test device with battery packs of different specifications, making the discharge test device more flexible and widely applicable.

[0015] Second, the long strip clamp can be used to simultaneously press and position the two square sliding sleeves and the two electrical plugs. By rotating the push bolt in both directions, the long strip clamp can be pushed to slide toward or away from the two square sliding sleeves, and the two electrical plugs can be tightened and loosened simultaneously. This eliminates the trouble of tightening and loosening the two electrical plugs step by step before and after sliding and adjusting them, and helps to indirectly improve the efficiency of sliding and adjusting the two electrical plugs.

[0016] Third, the length of the long strip clamp is comparable to the length of the internal space of the mounting frame, which can cover the sliding adjustment stroke of the two square sliding sleeves along the long side rod of the mounting frame. This allows the long strip clamp to achieve synchronous tightening and loosening of the two power connectors while allowing the two square sliding sleeves to slide and adjust. This enables the charge and discharge test device to overcome the technical obstacles caused by the sliding adjustment of the two square sliding sleeves and successfully set up a positioning mechanism (composed of the long strip clamp and the push bolt) for synchronous tightening and loosening of the two power connectors, which has better technical progress. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0019] In the attached diagram:

[0020] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0021] Figure 2A bottom-side view of the entire utility model is shown;

[0022] Figure 3 This diagram illustrates the disassembly and separation of the power connector and the power socket in this invention.

[0023] Figure 4 A schematic diagram showing the installation position of the power connector in this utility model is provided.

[0024] Figure 5 A schematic diagram of the mounting frame in this utility model is shown.

[0025] List of reference numerals in the attached diagram:

[0026] 1. Battery pack; 101. Power connector;

[0027] 2. Charge / discharge tester;

[0028] 3. Test bench; 301. Longitudinal guide shaft; 302. Baffle;

[0029] 4. U-shaped sliding frame; 401. Horizontal handlebar;

[0030] 5. Mounting frame; 501. Push bolt; 502. Long strip clamp; 503. Square sliding sleeve; 504. Limiting short shaft;

[0031] 6. Power plug. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this 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, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] Please refer to Figures 1 to 5 Example 1:

[0034] This embodiment proposes a charging and discharging test device for a new energy vehicle power battery, including a mounting frame 5. The mounting frame 5 has a long rectangular structure, and a long clamping plate 502 is slidably installed inside it.

[0035] A push bolt 501 is rotatably mounted through the middle part of the mounting frame 5, and the push bolt 501 engages with the long strip clamp 502 through the threaded screw. Two square sliding sleeves 503 are slidably mounted on one long side rod of the mounting frame 5, and a power plug 6 is fixedly mounted on the square sliding sleeve 503. The long strip clamp 502 is pressed against the inner side of the two square sliding sleeves 503. Two limiting short shafts 504 are symmetrically welded at both ends of the interior of the mounting frame 5, and the two ends of the long strip clamp 502 slide in cooperation with the two limiting short shafts 504.

[0036] Implementation 2: This embodiment is based on Implementation 1, but with the following additions:

[0037] This embodiment includes a test stand 3. The top of the test stand 3 is used to place the battery pack 1 to be tested. Two power connectors 101 are fixedly installed on a short side wall of the outer shell of the battery pack 1. Two power connectors 6 are connected to the two power connectors 101.

[0038] Preferably, two longitudinally placed guide shafts 301 are symmetrically welded to the bottom of the test bench 3, and two U-shaped sliding frames 4 are slidably installed on the two longitudinally placed guide shafts 301. The first ends of the two U-shaped sliding frames 4 are welded with mounting frames 5, and a horizontal handle 401 is welded between the bends of the two U-shaped sliding frames 4.

[0039] Preferably, a baffle 302 is welded to the top and bottom of the test stand 3, and the battery pack 1 abuts against the baffle 302.

[0040] Preferably, a charge / discharge tester 2 is fixedly installed at a corner of the top of the test bench 3 near the mounting frame 5.

[0041] Preferably, the charge / discharge tester 2 is electrically connected to two power plugs 6 via wires.

[0042] The working principle, specific details, implementation steps, functions and interrelationships of the features in the above embodiments, and the roles these features play in realizing this technical solution will be described and explained in detail below:

[0043] In use, the two power connectors 6 and the two power connectors 101 are plugged into each other to connect the battery pack 1 to the charge / discharge tester 2. The charge / discharge tester 2 can test the current and voltage data of the battery pack 1 during the charging and discharging process and display these data in real time on the display device set on it, or transmit these data remotely to the computer used to record and collect data via a data cable, so that the manufacturer can monitor, summarize and analyze these data to obtain the charging and discharging performance of the battery pack 1.

[0044] Two U-shaped sliding frames 4 can drive the mounting frame 5 to slide toward or away from the battery pack 1, allowing for insertion and removal of the connector 6 and connector 101. After testing, the connector 6 and connector 101 need to be separated and disassembled to facilitate lifting and moving the battery pack 1 for replacement. When the connector 6 and connector 101 are inserted and mated, positioning can be achieved by relying on the frictional resistance between them.

[0045] The two square sliding sleeves 503 can be slidably adjusted along the long side rod of the mounting frame 5 to be compatible with the two power connectors 6 with different spacing on the battery packs 1 of the same type and different specifications. This helps to improve the compatibility of the charge and discharge test device with battery packs 1 of different specifications, and makes the discharge test device more flexible and widely used.

[0046] The long clamp 502 can be used to simultaneously press and position the two square sliding sleeves 503 and the two electrical plugs 6. By rotating the push bolt 501 in both directions, the long clamp 502 can be pushed to slide toward or away from the two square sliding sleeves 503, and simultaneously tighten or loosen the two electrical plugs 6. This eliminates the trouble of tightening or loosening the two electrical plugs 6 in steps before and after sliding adjustment, and helps to indirectly improve the sliding adjustment efficiency of the two electrical plugs 6.

[0047] The length of the long clamp plate 502 is comparable to the length of the internal space of the mounting frame 5, which can cover the sliding adjustment stroke of the two square sliding sleeves 503 along the long side rod of the mounting frame 5. This allows the long clamp plate 502 to achieve synchronous tightening and loosening of the two power connectors 6 while allowing the two square sliding sleeves 503 to slide and adjust. This enables the charge and discharge test device to overcome the technical obstacles caused by the sliding adjustment of the two square sliding sleeves 503 and successfully set up a positioning mechanism (composed of the long clamp plate 502 and the push bolt 501) for synchronous tightening and loosening of the two power connectors 6, which has better technical progress.

[0048] The following points should be noted in this article:

[0049] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0050] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0051] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A new energy automobile power battery charge and discharge testing device, comprising a mounting frame (5), a long clamping plate (502) is slidably installed inside the mounting frame (5); characterized in that A propelling bolt (501) is rotatably installed through the middle part of the mounting frame (5), and the propelling bolt (501) is engaged with the long clamping plate (502) in the form of threaded screwing; two square sleeves (503) are slidably installed on a long side rod of the mounting frame (5), and an electric plug (6) is fixedly installed on the square sleeve (503); the long clamping plate (502) is in abutting contact with the inner side of the two square sleeves (503).

2. The power battery charge and discharge testing device for new energy vehicles according to claim 1, characterized in that, It also includes a test bench (3), the test bench (3) is used for placing a battery pack (1) to be tested at the top end, two electrically connected sleeve heads (101) are fixedly arranged on a short side wall of the battery pack (1) shell, and two electrically connected plugs (6) are correspondingly inserted and combined with the two electrically connected sleeve heads (101).

3. The power battery charging and discharging test device for new energy vehicles according to claim 2, characterized in that, The bottom of the test bench (3) is symmetrically welded with two vertically arranged guide shafts (301), two U-shaped sliding frames (4) are slidably installed on the two vertically arranged guide shafts (301), the first end of the two U-shaped sliding frames (4) is welded with the mounting frame (5), and the elbow part of the two U-shaped sliding frames (4) is welded with a horizontally arranged handle rod (401).

4. The power battery charge and discharge testing device for new energy vehicles according to claim 2, characterized in that, The tail end of the top of the test bench (3) is welded with a baffle (302), and the battery pack (1) is in abutting contact with the baffle (302).

5. The power battery charge and discharge testing device for new energy vehicles according to claim 2, characterized in that, A charge and discharge tester (2) is fixedly installed on a corner part of the test bench (3) close to the mounting frame (5).

6. The power battery charge and discharge testing device for new energy vehicles according to claim 5, characterized in that, The charge and discharge tester (2) is electrically connected with the two electrically connected plugs (6) through wires.

7. The power battery charge and discharge testing device for new energy vehicles according to claim 5, characterized in that, Two limiting short shafts (504) are symmetrically welded at the inner end positions of the mounting frame (5), and the two end parts of the long clamping plate (502) are correspondingly slidably matched with the two limiting short shafts (504).

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