Airtight test pressing mechanism for battery pack

Abstract

The utility model discloses an airtight test hold-down mechanism for a battery pack, which comprises a lower support mechanism and an upper support mechanism, the upper support frame of the lower support mechanism is provided with a test frame, and the lower support mechanism is connected with a side hold-down mechanism; the upper supporting mechanism is connected with an upper pressing mechanism, and the upper pressing mechanism is perpendicular to the side face pressing mechanism. The side pressing mechanism comprises a side driver and a side sliding rail which are fixed to the lower supporting mechanism, the power output end of the side driver is connected with a driving arm, the bottom end of the driving arm is connected to the side sliding rail through a side sliding block, and the side, away from the side driver, of the top end of the driving arm is connected with a side pressing plate; the upper pressing mechanism comprises an upper pressing drive and an upper pressing guide, and the power output end of the upper pressing drive and the bottom end of the upper pressing guide are jointly connected with an upper pressing panel. According to the utility model, side surface compression can be carried out on the basis of keeping upper compression, expansion of the battery pack can be effectively limited, the test accuracy is improved, and the use safety of the battery is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack testing equipment, and particularly relates to an airtight testing pressing mechanism for a battery pack. Background Art

[0002] The battery pack primarily consists of a housing and a lid, which provide support, resistance to mechanical shock and vibration, and environmental protection. As the carrier of the battery module, it plays a key role in its safety and protection. Airtightness testing primarily involves filling a sealed space with a certain amount of gas and then measuring the pressure change within the sealed chamber to calculate the amount of leakage, thereby determining whether the sample has passed inspection.

[0003] Existing airtight compression mechanisms generally perform upward compression and lack a lateral compression mechanism. During testing, the battery pack is prone to expansion, affecting the stability of the test results, which in turn affects the test results of the battery pack and affects the safety of battery use. Utility Model Content

[0004] The purpose of the utility model is to provide an airtight test clamping mechanism for a battery pack, which can perform side clamping while maintaining upper clamping, effectively limit the expansion of the battery pack, improve test accuracy, and ensure the safety of battery use.

[0005] To achieve the above-mentioned purpose, the utility model is a battery pack airtight test clamping mechanism, comprising a lower support mechanism and an upper support mechanism, wherein the upper support frame of the lower support mechanism is provided with a test frame, the lower support mechanism is connected to a side clamping mechanism, and the side clamping mechanisms are symmetrically distributed on both sides of the test frame; the upper support mechanism is connected to an upper clamping mechanism, and the upper clamping mechanism is perpendicular to the side clamping mechanism and symmetrically distributed at both ends above the test frame;

[0006] The side clamping mechanism includes a side drive and a side slide fixed on the lower support mechanism, the power output end of the side drive is connected to a drive arm, the bottom end of the drive arm is connected to the side slide through a side slider, and the top end of the drive arm is connected to a side pressure plate on a side away from the side drive;

[0007] The upper clamping mechanism includes an upper clamping drive and an upper clamping guide. The power output end of the upper clamping drive and the bottom end of the upper clamping guide are commonly connected to an upper clamping panel. The upper clamping panel is connected to an upper limit mechanism. The upper support mechanism is connected to a limit adjustment mechanism that cooperates with the upper limit mechanism.

[0008] As a further solution of the present invention: the side pressure plate includes a side rectangular frame and a side contact plate connected to the side rectangular frame.

[0009] As a further solution of the present invention: a C-shaped frame connected to the side rectangular frame is provided at the top end of the driving arm.

[0010] As a further solution of the present invention: the upper clamping panel includes an upper clamping rectangular frame and an upper clamping contact plate connected to the bottom surface of the upper clamping rectangular frame, the power output end of the upper clamping drive and the bottom end of the upper clamping guide are commonly connected to a connecting plate, and the connecting plate is connected to the top surface of the upper clamping rectangular frame.

[0011] As a further solution of the present invention: the upper limit mechanism includes a limit vertical plate, which is movably connected to the upper support mechanism. The limit vertical plate is provided with a plurality of positioning holes from the top downward, and the positioning holes are detachably connected to the limit horizontal plate.

[0012] As a further solution of the present invention: the limit adjustment mechanism includes an adjustment drive and an adjustment slide rail fixed on the upper support mechanism, the power output end of the adjustment drive is connected to the trapezoidal support block, and the trapezoidal support block is connected to the adjustment slide rail through the adjustment slider.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The cooperation of the side clamping mechanism and the upper clamping mechanism can prevent the battery pack from being deformed during testing, thereby improving production safety;

[0015] 2. The side clamping mechanism can adjust the feed distance, thereby achieving compatibility with battery packs of different widths and improving the efficiency of model change testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model for the airtight test pressing mechanism of the battery pack.

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure of part A in the middle.

[0018] In the figure: 1. Upper support mechanism, 2. Upper clamping drive, 3. Upper limit mechanism, 4. Limit adjustment mechanism, 5. Upper clamping guide, 6. Upper clamping panel, 7. Drive arm, 8. Side slide rail, 9. Lower support mechanism, 10. Side pressure plate, 11. Side drive, 12. C-frame, 13. Side slide, 14. Limit angle block, 15. Test frame;

[0019] 3.1, limit vertical plate, 3.2, positioning hole, 3.3, limit horizontal plate;

[0020] 4.1. Adjust the drive, 4.2. Adjust the slide rail, 4.3. Adjust the slider, 4.4. Trapezoidal support block;

[0021] 5.1, guide column, 5.2, guide sleeve;

[0022] 6.1. Connecting plate, 6.2. Upper pressing rectangular frame, 6.3. Upper pressing contact plate;

[0023] 10.1. Side rectangular frame, 10.2. Side contact plate. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown, the airtight test clamping mechanism for the battery pack includes a lower support mechanism 9 and an upper support mechanism 1. The upper support frame of the lower support mechanism 9 is provided with a test frame 15. The lower support mechanism 9 is composed of a plurality of support legs. All support legs jointly set up the test frame 15. The support legs are provided with limiting angle blocks 14 for users to limit and fix the test frame 15. The lower support mechanism 9 is connected to a side clamping mechanism, which is symmetrically distributed on both sides of the test frame 15. The upper support mechanism 1 is connected to an upper clamping mechanism, which is perpendicular to the side clamping mechanism and symmetrically distributed at both ends above the test frame 15.

[0026] The side clamping mechanism includes a side drive 11 and a side slide 8 fixed to the lower support mechanism 9. The power output end of the side drive 11 is connected to the drive arm 7. The bottom end of the drive arm 7 is connected to the side slide 8 through the side slider 13. The top end of the drive arm 7 is connected to the side pressure plate 10 away from the side drive 11. The side clamping mechanism can not only achieve side clamping of the battery pack, but also be compatible with battery packs of different widths, thereby improving the efficiency of model change testing.

[0027] The upper clamping mechanism includes an upper clamping drive 2 and an upper clamping guide 5. The power output end of the upper clamping drive 2 and the bottom end of the upper clamping guide 5 are commonly connected to an upper clamping panel 6. The upper clamping guide 5 includes a guide sleeve 5.2 fixed on the upper clamping mechanism. A guide column 5.1 is slidably connected in the guide sleeve 5.2. The upper clamping panel 6 is connected to an upper limit mechanism 3. The upper support mechanism 1 is connected to a limit adjustment mechanism 4 that cooperates with the upper limit mechanism 3. The cooperation between the upper limit mechanism 3 and the limit adjustment mechanism 4 can avoid excessive upper clamping.

[0028] The side drive 11 and the upper pressing drive 2 can adopt a telescopic adjustment drive 4.1 such as a cylinder or an electric push rod, as long as they can achieve linear drive.

[0029] Furthermore, the side pressure plate 10 includes a side rectangular frame 10.1 and a side contact plate 10.2 connected to the side rectangular frame 10.1. The side rectangular frame can ensure the structural strength of the side pressure plate 10, and the side contact plate 10.2 can be used to fit the battery pack to avoid deformation of the battery pack during testing.

[0030] In order to better drive and control the side pressure plate 10, further, a C-shaped frame 12 connected to the side rectangular frame 10.1 is provided at the top of the driving arm 7, which can smoothly drive the side pressure plate 10 to move.

[0031] Furthermore, the upper clamping panel 6 includes an upper clamping rectangular frame 6.2 and an upper clamping contact plate 6.3 connected to the bottom surface of the upper clamping rectangular frame 6.2. The power output end of the upper clamping drive 2 and the bottom end of the upper clamping guide 5 are commonly connected with a connecting plate 6.1, and the connecting plate 6.1 is connected to the top surface of the upper clamping rectangular frame 6.2. The upper clamping rectangular frame 6.2 is used to ensure the structural strength, and the upper clamping contact plate 6.3 is used to fit and clamp the battery pack. At the same time, the setting of the connecting plate 6.1 can make the drive control of the upper clamping panel 6 by the upper clamping drive 2 more stable.

[0032] The thickness of the battery pack is different, and the moving distance of the upper clamping mechanism is also different. Furthermore, the upper limit mechanism 3 includes a limit vertical plate 3.1, which is movably connected to the upper support mechanism 1. The limit vertical plate 3.1 is provided with a plurality of positioning holes 3.2 from the top downward, and the positioning holes 3.2 are detachably connected to the limit horizontal plate 3.3. According to actual test needs, the position of the limit horizontal plate 3.3 is adjusted to achieve the limit protection effect.

[0033] Furthermore, the limit adjustment mechanism 4 includes an adjustment drive 4.1 and an adjustment slide rail 4.2 fixed on the upper support mechanism 1. The power output end of the adjustment drive 4.1 is connected to the trapezoidal support block 4.4, and the trapezoidal support block 4.4 is connected to the adjustment slide rail 4.2 through the adjustment slider 4.3. The adjustment drive 4.1 can adopt a telescopic adjustment drive 4.1 such as a cylinder or an electric push rod, which can realize linear drive.

[0034] During use, the battery pack is placed on the test stand 15. The symmetrically positioned side actuators 11 are simultaneously activated, driving the side pressure plates 10 to a designated position to compress the battery pack horizontally. The symmetrically positioned upper pressure actuators 2 are then activated to control the upper pressure plate 6 to a designated position to compress the battery pack vertically. The airtightness test can then begin. During the test, the battery pack will expand, but this is restrained by the side and upper pressure mechanisms, preventing significant deviations in the test results and improving test accuracy.

Claims

1. A gas-tight test pressing mechanism for a battery pack, comprising a lower support mechanism (9) and an upper support mechanism (1), wherein the upper support frame of the lower support mechanism (9) is provided with a test frame (15), characterized in that: The lower support mechanism (9) is connected to a side clamping mechanism, which is symmetrically distributed on both sides of the test frame (15); the upper support mechanism (1) is connected to an upper clamping mechanism, which is perpendicular to the side clamping mechanism and symmetrically distributed on both ends of the upper side of the test frame (15); The side pressing mechanism comprises a side drive (11) and a side slide rail (8) fixed on the lower support mechanism (9); the power output end of the side drive (11) is connected to a drive arm (7); the bottom end of the drive arm (7) is connected to the side slide rail (8) through a side slider (13); and the top end of the drive arm (7) away from the side drive (11) is connected to a side pressure plate (10); The upper clamping mechanism comprises an upper clamping drive (2) and an upper clamping guide (5); the power output end of the upper clamping drive (2) and the bottom end of the upper clamping guide (5) are commonly connected to an upper clamping panel (6); the upper clamping panel (6) is connected to an upper limit mechanism (3); and the upper support mechanism (1) is connected to a limit adjustment mechanism (4) that cooperates with the upper limit mechanism (3).

2. The airtight test pressing mechanism for a battery pack according to claim 1, characterized in that: The side pressure plate (10) comprises a side rectangular frame (10.1) and a side contact plate (10.2) connected to the side rectangular frame (10.1).

3. The airtight test pressing mechanism for a battery pack according to claim 2, characterized in that: The top end of the driving arm (7) is provided with a C-shaped frame (12) connected to the side rectangular frame (10.1).

4. The airtight test pressing mechanism for a battery pack according to claim 1 or 3, characterized in that: The upper pressing panel (6) comprises an upper pressing rectangular frame (6.2) and an upper pressing contact plate (6.3) connected to the bottom surface of the upper pressing rectangular frame (6.2); the power output end of the upper pressing drive (2) and the bottom end of the upper pressing guide (5) are commonly connected to a connecting plate (6.1); and the connecting plate (6.1) is connected to the top surface of the upper pressing rectangular frame (6.2).

5. The airtight test pressing mechanism for a battery pack according to claim 4, characterized in that: The upper limit mechanism (3) comprises a limit vertical plate (3.1), the limit vertical plate (3.1) is movably sleeved with the upper support mechanism (1), the limit vertical plate (3.1) is provided with a plurality of positioning holes (3.2) from the top downward, and the positioning holes (3.2) are detachably connected to the limit horizontal plate (3.3).

6. The airtight test pressing mechanism for a battery pack according to claim 5, characterized in that: The position limiting adjustment mechanism (4) comprises an adjustment drive (4.1) and an adjustment slide rail (4.2) fixed on the upper support mechanism (1); the power output end of the adjustment drive (4.1) is connected to a trapezoidal support block (4.4); and the trapezoidal support block (4.4) is connected to the adjustment slide rail (4.2) via an adjustment slider (4.3).

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