Profiling test mechanism of lithium battery shell

By designing the model testing mechanism for lithium battery housing, the problem of edge angle and edge leakage testing in the existing technology is solved, and comprehensive and precise insulation and voltage resistance testing of lithium batteries is achieved, and testing efficiency and safety are improved.

CN223006257UActive Publication Date: 2025-06-20DONGGUAN CLIMAX SEAL TECH
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Patent Information

Application Number
CN202421816589.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-29
Publication Date
2025-06-20
Estimated Expiration
2034-07-29

AI Technical Summary

Technical Problem

The existing insulation voltage withstand voltage testing technology has problems with edge angle and edge leakage testing, which leads to the risk of short circuit after the battery cell is formed into a module.

Method used

A conjugation testing mechanism for lithium battery housing is designed, including a base, a fixed seat, a side positioning seat and an electrode plate. The conjugation structure enables the bonding of the edges and edges of the lithium battery and conducts accurate testing.

Benefits of technology

Through the model testing mechanism, the insulation voltage withstand test can be carried out comprehensively and accurately, which improves the efficiency and accuracy of the test and reduces the risk of short circuit.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a profiling test mechanism of a lithium battery shell, which comprises a base, a fixed seat, a lateral positioning seat and an electrode plate, the base is movably mounted on a horizontal moving device, avoidance positions are arranged on two sides of the base, the fixed seat integrally extends from the front of the base, and the lateral positioning seat is arranged on the fixed seat. The two side positioning seats are located on the left side and the right side of the base respectively and are arranged in a sliding mode, the bottoms of the side positioning seats extend towards the receding positions to form bottom plates, the front ends of the bottom plates extend upwards to form front plates, and the electrode plates are arranged on the opposite wall faces of the fixing seats. And the rack is provided with a second driving device for driving the electrode plate to move towards the direction of the fixed seat. And the base, the fixed seat, the side positioning seat and the bottom plate are respectively provided with an electrode surface matched with the lithium battery. By means of the arrangement of the two receding positions, feeding and discharging of the lithium battery clamped by the mechanical arm can be facilitated, and clamping and centering positioning of the lithium battery are facilitated through the side positioning seats moving relatively.
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Description

Technical Field

[0001] The utility model relates to the field of lithium battery processing equipment, and particularly relates to a profiling test mechanism for a lithium battery case. Background Technique

[0002] With the growth of the new energy electric vehicle market, the competition in the new energy battery industry has intensified, and the performance requirements for new energy batteries are getting higher and higher, especially the safety performance requirements for batteries are becoming more and more stringent.

[0003] If the surface insulation layer of the battery is scratched or damaged, the battery is prone to short circuit during use, resulting in fire incidents. Therefore, after the battery is coated with film or sprayed with blue film (i.e., the insulation layer), it must be subjected to an insulation withstanding voltage test.

[0004] The existing insulation withstanding voltage test technology has incomplete testing of the edges and corners, which is likely to cause missed testing of the edges and corners of the battery cells. After the defective battery cells are assembled into a module, there is a risk of short circuit.

[0005] This design mainly aims at the problem of missed testing of the edges and corners and combines production efficiency to provide a structure for comprehensive insulation withstanding voltage testing and parallel efficiency. Content of the Utility Model

[0006] The main purpose of the utility model is to propose a profiling test mechanism for a lithium battery case, aiming to solve the above technical problems.

[0007] To achieve the above purpose, the utility model proposes a profiling test mechanism for a lithium battery case, including:

[0008] A base, the base is movably installed on a horizontal moving device, and avoidance positions are provided on both sides of the base;

[0009] A fixed seat, the fixed seat extends integrally from the front of the base;

[0010] Side positioning seats, there are two side positioning seats respectively located on the left and right sides of the base, the side positioning seats are slidably arranged, and the horizontal moving device is provided with a first driving device for driving the side positioning seats to slide.

[0011] The bottom of the side positioning seat extends towards the avoidance position to form a bottom plate, and the front end of the bottom plate extends upwards to form a front plate;

[0012] Electrode plates, the electrode plates are arranged on the opposite walls of the fixed seat, and the frame is provided with a second driving device for driving the electrode plates to move towards the fixed seat.

[0013] The base, the fixed seat, the side positioning seats and the bottom plate are respectively provided with electrode surfaces that match the lithium battery.

[0014] In actual design, the electrode plate is adapted to the electrode end structure of the lithium battery, so it can be used to conduct current. The provision of two avoidance positions facilitates the loading and unloading of the lithium battery by the manipulator. The side positioning seats with relative movement facilitate the clamping and centering of the lithium battery. At the same time, the profiling structure also realizes the fitting of the edges and corners of the lithium battery and achieves accurate testing. Brief Description of the Drawings

[0015] Figure 1 Schematic diagram of the present utility model;

[0016] Figure 2 Schematic diagram of the side positioning seat;

[0017] Figure 3 Stereoscopic schematic of the present utility model Figure 1 ;

[0018] Figure 4 Stereoscopic schematic of the present utility model Figure 2 ‘

[0019] Figure 5 Schematic diagram of the top plate.

[0020] In the figure,

[0021] 1 is the base, 11 is the avoidance position,

[0022] 2 is the fixed seat,

[0023] 3 is the side positioning seat, 31 is the bottom plate, 32 is the front plate,

[0024] 41 is the arc angle, 41 is the first arc portion, 42 is the second arc portion, 43 is the third arc portion,

[0025] 5 is the top plate, 51 is the edge stop,

[0026] 6 is the electrode plate, 60 is the slot,

[0027] 71 is the first driving device, 72 is the second driving device. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that if there are directional indications involved in the embodiments of the present utility model (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0030] In addition, if there are descriptions such as "first" or "second" involved in the embodiments of the present utility model, then such descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] As Figures 1 to 5 shown, a profiling test mechanism for a lithium battery housing includes:

[0032] A base 1, the base 1 is movably installed on a horizontal moving device 100, and avoiding positions 11 are provided on both sides of the base 1;

[0033] A fixed seat 2, the fixed seat 2 extends integrally from the front of the base 1;

[0034] Side positioning seats 3, there are two side positioning seats 3 respectively located on the left and right sides of the base 1, the side positioning seats 3 are slidably arranged, and the horizontal moving device is provided with a first driving device for driving the side positioning seats 3 to slide.

[0035] The bottom of the side positioning seat 3 extends towards the avoiding position 11 with a bottom plate 31, and the front end of the bottom plate 31 extends upwards with a front plate 32;

[0036] An electrode plate 6, the electrode plate 6 is arranged on the opposite wall surfaces of the fixed seat 2, and the frame is provided with a second driving device for driving the electrode plate 6 to move towards the fixed seat 2.

[0037] The base 1, the fixed seat 2, the side positioning seats 3 and the bottom plate 31 are respectively provided with electrode surfaces that cooperate with the lithium battery.

[0038] In the actual design, the electrode plate 6 is adapted to the electrode end structure of the lithium battery, so it can be used to conduct current. The two avoidance positions 11 are provided to facilitate the loading and unloading of the lithium battery by the manipulator. The side positioning seat 3 with relative movement facilitates the clamping and centering positioning of the lithium battery. At the same time, the profiling structure also realizes the fitting of the edges and corners of the lithium battery and achieves accurate testing.

[0039] Specifically, a first arc portion 41 is provided between the fixed seat 2 and the base 1, thereby realizing the fitting of the edge of the lithium battery.

[0040] In the embodiment of the present utility model, a second arc portion is provided between the side positioning seat 3 and the bottom plate 31, a fourth arc portion 44 is provided between the front plate 32 and the bottom plate 31, and a third arc portion is provided between the side positioning seat 3 and the front plate 32, thereby realizing the mutual fitting of the lithium batteries.

[0041] Specifically, an arc angle 41 is formed among the first arc portion 41, the fourth arc portion 44 and the third arc portion 43, thereby realizing the fitting test of the edges and corners of the lithium battery.

[0042] In the embodiment of the present utility model, it further includes a top plate 5 (arranged on the vertical moving device to realize vertical movement). Three mutually connected blocking edges 50 extend downward from the top plate 5, and a fourth arc portion is provided between the blocking edge and the top plate 5.

[0043] Specifically, the electrode plate 6 is provided with a recessed slot 60, which is used to avoid the electrode column and connect the test power supply. Generally, no insulating paint is provided on this surface, or additional structures are required for special testing.

[0044] In the embodiment of the present utility model, the first driving device 71 and the second driving device 72 are telescopic motors.

[0045] Specifically, it further includes a guide rail and a slider, and the side positioning seat 3 is arranged on the slider, thereby realizing smooth sliding.

[0046] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural transformations made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present utility model.

Claims

1. A profiling test mechanism for a lithium battery housing, characterized in that: include: A base, the base is movably mounted on a horizontal moving device, and two sides of the base are provided with avoidance positions; A fixing seat, the fixing seat is integrally extended from the front of the base; The side positioning seat is provided with two side positioning seats respectively located on the left and right sides of the base, the side positioning seat is slidingly arranged, and the horizontal moving device is provided with a first driving device for driving the side positioning seat to slide. A bottom plate is extended from the bottom of the side positioning seat toward the avoidance position, and a front plate is extended upward from the front end of the bottom plate; An electrode plate, wherein the electrode plate is arranged on a wall surface opposite to the fixing seat, and the frame is provided with a second driving device for driving the electrode plate to move toward the fixing seat; The base, the fixing base, the side positioning base and the bottom plate are respectively provided with electrode surfaces matching with the lithium battery.

2. The profiling test mechanism for a lithium battery housing according to claim 1, characterized in that: A first arc portion is provided between the fixing seat and the base.

3. The profiling test mechanism for a lithium battery housing as claimed in claim 2, characterized in that: A second arc portion is provided between the lateral positioning seat and the bottom plate, a fourth arc portion is provided between the front plate and the bottom plate, and a third arc portion is provided between the lateral positioning seat and the front plate.

4. The profiling test mechanism for a lithium battery housing as claimed in claim 3, characterized in that: The first arc portion, the fourth arc portion and the third arc portion form an arc angle.

5. The profiling test mechanism for a lithium battery housing as claimed in claim 1, characterized in that: It also includes a top plate, which has three mutually connected ribs extending downward, and a fourth arc portion is provided between the ribs and the top plate.

6. The profiling test mechanism for a lithium battery housing as claimed in claim 1, characterized in that: The electrode plate is provided with a concave groove.

7. The profiling test mechanism for a lithium battery housing as claimed in claim 1, characterized in that: The first driving device and the second driving device are telescopic motors.

8. The profiling test mechanism for a lithium battery housing as claimed in claim 1, characterized in that: It also includes a guide rail and a slide block, and the lateral positioning seat is arranged on the slide block.