Standard part for battery production detection

Abstract

The utility model belongs to the technical field of battery production, and particularly relates to a standard component for battery production detection, which comprises a main body similar to the structure of a battery shell and a mounting part arranged at the end part of the main body and used for mounting a battery top cover, the mounting part comprises an enclosure frame buckled with the battery top cover and an accommodating cavity enclosed by the enclosure frame, and the accommodating cavity is provided with an opening. The battery top cover is accommodated in the accommodating cavity, and the accommodating cavity is at least communicated with a dismounting groove. The standard part for battery production detection can replace a battery shell for detection, and the standard part for battery production detection and a battery top cover are easy to disassemble and can be repeatedly used.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production detection technical field, specifically, relate to a standard part for battery production detection. BACKGROUND

[0002] With lithium ion battery in mobile phone, computer, tablet computer, bluetooth headset, electric tool, car, energy storage and other fields have been more and more widely used, people's requirement on the production process of battery is also gradually improved, and in order to ensure the normal operation of production process, an important aspect is to carry out production commissioning.Before the formal production of battery, simulation detection is needed, and the running state of each process in battery production process is verified or adjusted, wherein the welding requirement of battery top cover and sealing sheet is high, and the running state of battery top cover and sealing sheet welding process needs to be adjusted for many times until having good welding metallography.

[0003] And in the prior art, the running state of the welding process in the actual production process needs to be simulated, and the complete battery needs to be used for detection, the battery shell and the top cover of the battery need to be welded together, and then the battery top cover and the sealing sheet are welded and detected, and once the battery is assembled, the ordinary user cannot disassemble the battery top cover and the battery shell, when one of the battery top cover and the battery shell is damaged, the other part cannot be disassembled for secondary use, and the whole battery is completely scrapped, which is not only waste but also not environmentally friendly.

[0004] Therefore, there is an urgent need to invent a standard part for battery production detection. UTILITY MODEL CONTENT

[0005] The utility model aims at: in view of the deficiency of prior art, and provide a kind of standard part for battery production detection, this alternative piece can simulate the structure of real battery, and the standard part for battery production detection is detachably connected with battery top cover, and the standard part for battery production detection can be repeatedly used, effectively reduce the cost generated in the detection process of battery.

[0006] To achieve the above object, the following technical scheme is used in the present application:

[0007] A standard part for battery production detection, including the main body similar to the structure of battery shell and the mounting portion for installing battery top cover arranged at the end of the main body, the mounting portion includes the surrounding frame for buckling with the battery top cover and the accommodation cavity surrounded by the surrounding frame, the battery top cover is accommodated in the accommodation cavity, and the accommodation cavity is at least communicated with a disassembly slot.

[0008] Specifically, the number of disassembly slots is one, and the disassembly slot penetrates the surrounding frame along the length direction X of the main body.

[0009] Specifically, the number of disassembly slots is one, and the disassembly slot penetrates the surrounding frame along the width direction Y of the main body.

[0010] Specifically, the number of the dismounting slots is two, one of the dismounting slots runs through the frame along the length direction X of the main body, and the other of the dismounting slots runs through the frame along the width direction Y of the main body.

[0011] Specifically, the number of the dismounting slots is two, both of the dismounting slots run through the frame along the length direction X of the main body, and the two dismounting slots are parallel.

[0012] Specifically, the number of the dismounting slots is two, both of the dismounting slots run through the frame along the width direction Y of the main body, and the two dismounting slots intersect.

[0013] Specifically, the inner wall of the frame is provided with a limiting slot for limiting the battery top cover.

[0014] Specifically, the size and shape of the main body are consistent with the battery shell, and the tolerance is less than 0.05 mm.

[0015] Specifically, the main body part 1 is provided with a hollow structure.

[0016] More specifically, the hollow structure is a through hole.

[0017] The main body structure of the standard part for battery production detection of the application is approximately replaceable with the battery shell, the frame and the accommodating cavity surrounded by the frame can realize the fixation and installation of the battery top cover and are convenient and fast to install, and the dismounting slot can realize the dismounting of the battery top cover. Since the battery top cover and the standard part for battery production detection are detachably connected, the dismounting is simple and the standard part for battery production detection does not need to be damaged, and the standard part for battery production detection can be repeatedly used. By replacing the battery shell with the standard part for battery production detection, the loss of the battery shell can be reduced and the cost can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the application, and form a part of the application. The illustrative embodiments of the application and their description serve to explain the application. In the drawings:

[0019] Figure 1 It is a structural schematic view of the embodiment 1 in the application;

[0020] Figure 2 It is an enlarged view of A in the application Figure 1

[0021] Figure 3 It is a structural schematic view of the embodiment 2 in the application;​

[0022] Figure 4 is a structural schematic view of the embodiment 3 in the utility model;

[0023] Figure 5 is a structural schematic view of the embodiment 4 in the utility model;

[0024] Figure 6 is a structural schematic view of the embodiment 5 in the utility model;

[0025] Figure 7 is a structural schematic view of the embodiment 6 in the utility model;

[0026] Figure 8 is a structural schematic view of the embodiment 6 in the utility model;

[0027] Wherein: 1-main body;11-mounting portion;12-hollow structure;121-through hole;111-enclosure;1111-limit slot;112-receiving cavity;113-disassembly slot;2-battery top cover;3-sealing sheet. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, not intended to limit the present application.

[0029] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0030] Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the claims, and any person skilled in the art can make several possible changes and modifications without departing from the concept of the present application, therefore the protection scope of the present application should be limited by the scope defined by the claims of the present application.

[0031] The applicant found that in the process of battery production, the welding of the battery top cover and the sealing sheet is the welding of small parts, which is prone to unstable welding quality due to the positional deviation of the clamp or the welding head after a large number of production runs. Therefore, a pre-production step is needed before the formal production of the battery to find problems or potential risks in production, verify and debug the welding process, and sample a certain number of batteries to detect the welding quality between the battery top cover and the sealing sheet. Whether it is pre-production of the battery or sampling detection of the battery, the battery top cover needs to be damaged, such as cutting the welding part of the battery top cover and the sealing sheet to observe the fusion width and depth. In the process of battery production, the welding of the sealing sheet and the battery top cover is carried out after liquid injection, and at this time the battery top cover and the battery shell have been assembled. Once the battery top cover and the battery shell are assembled, the ordinary user cannot disassemble the battery top cover and the battery shell. When one of the battery top cover and the battery shell is damaged, the other part cannot be disassembled for reuse, and the entire battery is completely scrapped, which is not only a waste but also not environmentally friendly.

[0032] Therefore, the applicant designed a battery production detection standard part with a structure similar to the battery shell to replace the connection between the battery shell and the battery top cover 2, as shown in Figure 1 The battery production detection standard part and the battery top cover 2 are detachably connected through the disassembly groove 113, so the battery production detection standard part can be reused, and replacing the battery shell with the battery production detection standard part can reduce the consumption of the battery shell and save costs.

[0033] Embodiment 1

[0034] As shown in Figures 1-2 A battery production detection standard part includes a main body 1 similar in structure to a battery shell and a mounting portion 11 provided at an end of the main body 1 and used for mounting a battery top cover 2. The mounting portion 11 includes a surrounding frame 111 for buckling with the battery top cover 2 and a receiving cavity 112 surrounded by the surrounding frame 111. The battery top cover 2 is received in the receiving cavity 112, and the receiving cavity 112 is at least connected to a disassembly groove 113.

[0035] The structure of the main body 1 is arranged to be similar to that of the battery shell, so that the jig matched with the battery shell on the production line can be directly used for the standard part for battery production detection, without the need for additional adaptation or modification, realizing smooth conversion and adaptation of the production process. The surrounding frame 111 and the accommodating cavity 112 surrounded by the surrounding frame 111 are connected in a snap-fit manner, simplifying the process of installing the battery top cover 2 to the main body 1. The snap-fit manner can provide reliable connection and tightness, ensuring the safety and stability of the battery top cover 2. Through the arrangement of the disassembly groove 113, the battery top cover 2 is easy to disassemble, and the battery top cover 2 is easy to install and disassemble on the standard part for battery production detection, and the disassembly process will not damage the standard part for battery production detection. The standard part for battery production detection can be used to simulate various problems that may occur in the actual production process of the battery to adjust the welding process of the battery top cover 2 and the sealing sheet 3. Because the standard part for battery production detection can be repeatedly used, unlike the actual battery shell which will be used and damaged or scrapped during detection and adjustment. This not only saves the cost of raw materials, but also reduces the cost and environmental impact of waste disposal. Compared with using the battery shell to calibrate the device in the battery production process, the standard part for battery production detection has better effect, because the battery shell may not be standard in size during the generation process, while the size of the standard part for battery production detection is strictly controlled and more standard.

[0036] Embodiment 2

[0037] As shown in Figure 3 , different from Embodiment 1 is that: the number of disassembly grooves 113 in this embodiment is one, and the disassembly groove 113 penetrates the surrounding frame 111 along the length direction X of the main body 1. The position of the disassembly groove 113 is designed to meet the requirement that it will not damage the weld and affect the detection of the welding quality during disassembly. Designing the number of disassembly grooves 113 to be one makes the standard part for battery production detection have a simpler structure. When the battery top cover 2 is disassembled by prying along the disassembly groove 113, the damage to both ends of the battery top cover 2 in the X direction is large, and the damage to the middle part of the battery top cover 2 is large. When the sealing sheet 3 is arranged in the middle of the battery, the disassembly groove 113 is arranged to penetrate the surrounding frame 111 along the length direction X of the main body 1, which is beneficial to the protection of the welding point between the sealing sheet 3 and the battery top cover 2.

[0038] The other parts are the same as Embodiment 1, which will not be repeated here.

[0039] Embodiment 3

[0040] As shown in Figure 4As shown, the difference from embodiment 1 is that in this embodiment, there is only one disassembly groove 113, and the disassembly groove 113 passes through the frame 111 along the width direction Y of the main body 1. When the battery top cover 2 is disassembled along the disassembly groove 113 in the Y direction, the damage to the middle of the battery top cover 2 is greater and the damage to the two sides is smaller. The direction of the disassembly groove 113 can be set according to different welding positions.

[0041] The rest is the same as Implementation 1 and will not be described again here.

[0042] Implementation 4

[0043] like Figure 5 As shown, the difference from embodiment 1 is that: in this embodiment, there are two disassembly grooves 113, one of which penetrates the frame 111 along the length direction X of the main body 1, and the other disassembly groove 113 penetrates the frame 111 along the width direction Y of the main body 1; and the two disassembly grooves 113 are perpendicular to each other. When the battery top cover 2 is disassembled, the force is more evenly applied in different directions, which reduces the damage to the battery top cover 2. The sealing sheets 3 are set at various positions of the battery top cover 2 for welding without damaging the welding points during disassembly.

[0044] The rest is the same as Implementation 1 and will not be described again here.

[0045] Implementation 5

[0046] like Figure 6 As shown, the difference from embodiment 1 is that in this embodiment, there are two disassembly grooves 113, and the two disassembly grooves 113 both penetrate the frame 111 along the length direction X of the main body 1, and the two disassembly grooves 113 are parallel. When two disassembly grooves 113 are provided and the disassembly grooves 113 are parallel, the battery top cover 2 is disassembled along the two disassembly grooves 113 at the same time, and the position between the two disassembly grooves 113 is less affected by the stress during disassembly. When the welding position is provided between the two disassembly grooves 113, the damage to the welding point caused by disassembly is small. The provision of two parallel disassembly grooves 113 provides a safe zone for disassembly, and the welding position can be set according to the position of the safe zone.

[0047] The rest is the same as Implementation 1 and will not be described again here.

[0048] Implementation Method 6

[0049] like Figure 7 As shown, the difference from embodiment 1 is that there are two disassembly grooves 113 in this embodiment, and both disassembly grooves 113 pass through the frame 111 along the width direction Y of the main body 1, and the two disassembly grooves 113 intersect. When the two disassembly grooves 113 intersect, disassembly is performed along the disassembly grooves 113, and the stress on the battery top cover 2 at the position where the disassembly grooves 113 intersect is small.

[0050] As Figure 8 shown, the dismounting groove 113 need not form a groove at the bottom of the accommodating cavity 112, but can only form a gap at the surrounding frame 111, and the battery top cover 2 can be pried out or levered out through the gap at the surrounding frame 111. Embodiments 2-5 can all be provided with the dismounting groove 113 in the same way, only forming a gap at the surrounding frame 111.

[0051] The other parts are the same as those in embodiment 1, which will not be described here.

[0052] In some embodiments, the size of the dismounting groove 113 is consistent with the size of a person's fingers, and the shape of the dismounting groove 113 is semicircular to facilitate prying out the battery top cover 2 by fingers.

[0053] As Figure 2 shown, the inner wall of the surrounding frame 111 is provided with a limiting groove 1111 for limiting the position of the battery top cover 2. The limiting groove 1111 is used to position and fix the position of the battery top cover 2, so that the battery top cover 2 will not be offset or loose after assembly, and can also withstand the vibration and impact that may occur during welding of the battery top cover 2 and the sealing sheet 3. By reasonably positioning the position of the battery top cover 2, the position of the battery top cover 2 is consistent with the actual production process of the top cover, the welding position of the battery top cover 2 and the sealing sheet 3 is simulated, and the consistency of the welding effect is ensured.

[0054] It should be noted that the height of the limiting groove 1111 needs to be designed to control that the battery top cover 2 does not contact the bottom of the accommodating cavity 112, so as to prevent the battery top cover 2 from being uneven due to abutting against the accommodating cavity 112. In some embodiments, a groove is provided at the bottom of the accommodating cavity 112 to prevent the battery top cover 2 from abutting against the accommodating cavity 112.

[0055] Preferably, the size and shape of the main body 1 is consistent with the battery shell, and the tolerance is less than 0.05mm, when the size of the main body 1 and the size of the battery shell is within the range of 0.05mm, the consistency of the size between the standard part for battery production detection and the battery shell can be guaranteed, the consistency of the position of the battery top cover 2 can be guaranteed, the standard part for battery production detection and the battery top cover 2 can be assembled as a standard part, which is used to calibrate whether the operation of each component in the welding process of the battery top cover 2 and the sealing sheet 3 is accurate, the laser welding can be used for welding the battery top cover 2 and the sealing sheet 3, and the welding quality of the laser welding is related to whether the position of the focal length of the laser is accurate, when the position of the laser welding head or the clamp is deviated, the welding quality is poor, and the laser welding head and the clamp need to be adjusted until the welding quality is good, and since the size of the main body 1 and the size of the battery shell is within the range of 0.05mm, the deviation between the standard part for battery production detection and the standard part assembled with the battery top cover 2 is also within the range, and the welding deviation between the standard part and the battery is also within the range, and the welding error of less than 0.05mm is within the acceptable range, which guarantees that the tolerance of the main body 1 is less than 0.05mm and guarantees the consistency of the welding quality.

[0056] Preferably, the main body 1 is provided with a hollow structure 12, the hollow structure 12 can effectively reduce the weight of the standard part for battery production detection and improve portability, and it should be noted that the hollow structure 12 should not conflict with the working position clamped by the clamp, in some embodiments, the hollow structure 12 is a through hole 121, the through hole 121 structure is convenient to process and is beneficial to grasping and hanging storage.

[0057] The use mode of the standard part for battery production detection is that the battery top cover 2 is buckled and assembled to the mounting portion 11 of the standard part for battery production detection, then the standard part formed by the battery top cover 2 and the standard part for battery production detection is put into the clamp, then the welding step is performed, when the welding is completed, the battery top cover 2 is pried out from the dismounting groove 113 by hand or a tool, the welding quality is detected, when the welding quality meets the standard, the formal production is performed, and when the quality does not meet the standard, the production equipment is adjusted and the above steps are repeated.

[0058] The preferred embodiments of the utility model have been described above, and are not used to limit the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A standard piece for battery production inspection, characterized by: The battery shell comprises a main body (1) and a mounting part (11) arranged at the end of the main body (1) and used for mounting a battery top cover (2), the mounting part (11) comprises a surrounding frame (111) buckled with the battery top cover (2) and a containing cavity (112) surrounded by the surrounding frame (111), the battery top cover (2) is contained in the containing cavity (112), and the containing cavity (112) is communicated with at least one dismounting slot (113).

2. The standard part for battery production inspection according to claim 1, wherein: The number of the dismounting slot (113) is one, and the dismounting slot (113) penetrates the surrounding frame (111) along the length direction X of the main body (1).

3. The battery production test standard according to claim 1, characterized in that: The number of the dismounting slot (113) is one, and the dismounting slot (113) penetrates the surrounding frame (111) along the width direction Y of the main body (1).

4. The standard part for battery production inspection according to claim 1, wherein: The number of the dismounting slot (113) is two, one of the dismounting slots (113) penetrates the surrounding frame (111) along the length direction X of the main body (1), and the other dismounting slot (113) penetrates the surrounding frame (111) along the width direction Y of the main body (1); and the two dismounting slots (113) are perpendicular to each other.

5. The standard part for battery production inspection according to claim 1, wherein: the standard part is a standard part for inspecting a battery pack. The number of the dismounting slot (113) is two, and the two dismounting slots (113) both penetrate the surrounding frame (111) along the length direction X of the main body (1), and the two dismounting slots (113) are parallel.

6. The standard part for battery production inspection according to claim 1, wherein: The number of the dismounting slot (113) is two, and the two dismounting slots (113) both penetrate the surrounding frame (111) along the width direction Y of the main body (1), and the two dismounting slots (113) intersect.

7. The standard part for battery production inspection according to claim 1, wherein: the first electrode is a positive electrode; and the second electrode is a negative electrode. The inner wall of the surrounding frame (111) is provided with a limiting slot (1111) used for limiting the battery top cover (2).

8. The standard part for battery production inspection according to claim 1, wherein: The size and shape of the main body (1) are consistent with the battery shell, and the tolerance is less than 0.05 mm.

9. The standard part for battery production inspection according to claim 1, wherein: The main body (1) is provided with a hollow structure (12).

10. The standard part for battery production inspection according to claim 9, wherein: The hollow structure (12) is a through hole (121).

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