Clamp for detecting convex battery

Abstract

The utility model relates to the technical field of convex lithium ion batteries, and discloses a clamp for detecting a convex battery. The clamp comprises an edge folding inspection jig. A sliding groove is formed in the edge folding inspection jig, limiting blocks are symmetrically arranged on the two opposite sides of the sliding groove in the edge folding inspection jig respectively, and step structures are arranged on the surfaces of the opposite sides of the two limiting blocks. The step structure comprises a smooth detection wall and a step surface which is formed by extending in a direction far away from the detection wall; the detection walls of the two limiting blocks and the sliding groove jointly form a blocking groove. According to the clamp provided by the utility model, when the soft package convex lithium ion batteries are produced on a large scale, the convex batteries with poor folding height and width can be quickly identified in a convex battery detection process, so that the pressure and time cost of personnel detection are greatly reduced, the production time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of convex lithium-ion batteries, in particular to a clamp for detecting convex batteries. Background Art

[0002] Currently, there is no visual intelligent equipment for the inspection of soft-pack convex lithium-ion batteries, and manual inspection is generally performed by staff. To verify whether soft-pack convex lithium-ion battery products are qualified, staff need to repeatedly test parameters such as the battery's folding edge height, battery width, and battery thickness to determine whether each parameter meets the predetermined parameter requirements. This manual inspection method is particularly time-consuming and inefficient. In addition, the fatigue level of staff will also affect the accuracy of the inspection results.

[0003] Therefore, for this field, how to quickly and accurately identify NG products with poor battery size during the inspection of convex lithium-ion batteries, thereby improving the production efficiency of convex lithium-ion batteries, has become a technical problem that needs to be solved urgently in this field.

[0004] The above information is presented as background information only to assist with an understanding of the present disclosure and is not a determination or admission that any of the above may be applicable as prior art with respect to the present disclosure. Utility Model Content

[0005] The purpose of the utility model is to provide a fixture for detecting convex batteries, so as to solve or at least partially solve the technical problems existing in the prior art.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a fixture for detecting convex batteries, including a folding inspection jig;

[0008] The folding inspection jig is provided with a sliding groove, and a limit block is symmetrically provided on the two opposite sides of the sliding groove, and a step structure is provided on the surface of the two limit blocks facing each other;

[0009] The step structure includes a smooth detection wall and a step surface extending in a direction away from the detection wall; the detection walls of the two limit blocks extend into the sliding groove and together with the sliding groove form a blocking groove for blocking convex batteries exceeding a predetermined width from passing through;

[0010] The distance between the step surface and the bottom of the sliding groove is a predetermined folding height threshold of the convex battery.

[0011] Optionally, a battery thickness inspection jig is also included;

[0012] The battery thickness inspection jig is provided with a through slot, the entrance of which is connected to the sliding opening of the folding inspection jig;

[0013] A thickness limiting beam is provided on the battery thickness inspection jig above the through slot, and the distance between the bottom of the thickness limiting beam and the bottom of the through slot is a predetermined thickness threshold of the convex battery.

[0014] Optionally, both ends of the thickness-limiting beam are respectively fixed on two groove edges of the through groove;

[0015] A cylindrical arc-shaped blocking portion is provided at the bottom of the thickness-limiting beam.

[0016] Optionally, the outlet of the through groove is configured as an "eight"-shaped trumpet mouth;

[0017] The opening size of the end of the outlet away from the inlet is larger than the opening size of the end of the outlet close to the inlet.

[0018] Optionally, a mounting base is also included;

[0019] The battery thickness inspection jig is fixedly installed on the mounting base in an inclined manner, and the battery thickness inspection jig and the folding inspection jig are detachably fixedly connected together.

[0020] Optionally, a mounting groove for mounting the limit block is respectively opened on opposite sides of the sliding groove in the middle of the folding inspection jig, and ends of the mounting grooves facing each other are both connected to the sliding groove;

[0021] The limit block is provided with a plurality of stepped holes running longitudinally therethrough for inserting fixing members; the bottom of the mounting groove is provided with fixing holes corresponding to the positions of the stepped holes; the bottom end of the fixing member can pass through the stepped hole and be fixedly connected to the fixing hole.

[0022] Optionally, the sliding groove includes two trumpet-shaped grooves symmetrically arranged with the blocking groove as the symmetry center; the opening size of the trumpet-shaped groove at one end away from the blocking groove is larger than the opening size of the trumpet-shaped groove at one end close to the blocking groove.

[0023] Optionally, arc chamfers are respectively provided at both ends of the step surface along the sliding direction of the convex battery.

[0024] Optionally, the convex battery is a soft-pack convex lithium-ion battery.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The fixture provided by the utility model can realize the rapid identification of convex batteries with poor folding height and width in the convex battery inspection process during the large-scale production of soft-pack convex lithium-ion batteries, greatly reducing the pressure and time cost of personnel inspection, saving production time and improving production efficiency.

[0027] The present invention has other features and advantages, which will be apparent from the accompanying drawings and subsequent detailed descriptions incorporated herein, or will be described in detail in the accompanying drawings and subsequent detailed descriptions incorporated herein, which together serve to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of a fixture for detecting convex batteries provided by an embodiment of the present utility model.

[0030] Figure 2 This is a partial structural principle diagram of a folding inspection jig provided by an embodiment of the utility model.

[0031] Figure 3 This is a structural principle diagram of a limit block provided by an embodiment of the utility model.

[0032] Figure 4 It is a front view of a folding inspection jig provided by an embodiment of the utility model.

[0033] Figure 5 It is a structural schematic diagram of a battery thickness inspection jig provided by an embodiment of the present utility model.

[0034] Figure 6 It is a structural schematic diagram of a convex battery provided by an embodiment of the present utility model.

[0035] In the figure: 10, mounting base; 20, battery thickness inspection fixture; 21, through groove; 210, entrance; 211, exit; 22, thickness limiting beam; 221, arc-shaped blocking portion; 30, folding edge inspection fixture; 31, sliding groove; 310, sliding mouth; 311, blocking groove; 32, mounting groove; 321, fixing hole; 40, limiting block; 41, stepped hole; 42, detection wall; 43, step surface; 431, arc chamfer. DETAILED DESCRIPTION

[0036] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0037] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0038] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0039] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0040] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0041] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0042] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0043] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0044] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] Example 1:

[0046] See also Figure 1 , Figure 1 It is a schematic diagram of the overall structure of a fixture for detecting convex batteries provided by an embodiment of the present utility model.

[0047] like Figure 1 As shown, the fixture includes a folding inspection jig 30;

[0048] Please continue reading Figure 2-Figure 4 , Figure 2 This is a schematic diagram of a portion of the structure of a folding inspection jig provided by an embodiment of the utility model. Figure 3 This is a structural principle diagram of a limit block provided by an embodiment of the utility model. Figure 4 This is a front view of a folding inspection jig provided by an embodiment of the present utility model;

[0049] Specifically, a sliding groove 31 is provided on the folding inspection jig 30, and a limit block 40 is symmetrically provided on opposite sides of the sliding groove 31. The surfaces of the two limit blocks 40 facing each other are provided with a step structure;

[0050] The step structure includes a smooth detection wall 42 and a step surface 43 extending away from the detection wall 42. The detection walls 42 of the two limit blocks 40 extend into the sliding groove 31 and together with the sliding groove 31 form a blocking groove 311 for blocking convex batteries exceeding a predetermined width from passing through.

[0051] The distance between the step surface 43 and the bottom of the sliding groove 31 is a predetermined folding height threshold of the convex battery.

[0052] For easier understanding, please refer to Figure 6 , Figure 6 This is a schematic structural diagram of a convex battery provided by an embodiment of the present utility model;

[0053] In this embodiment, the width W of the convex battery shall not exceed the distance between the two detection walls 42 of the fixture; the folding height H of the convex battery shall not exceed the distance h2 between the step surface 43 and the bottom of the sliding groove 31.

[0054] During the large-scale production of soft-pack convex lithium-ion batteries, it can quickly identify convex batteries with poor folding height during the convex battery inspection process. At the same time, it can also check whether the width of the convex batteries meets the requirements, greatly reducing the pressure and time cost of personnel inspection, saving production time and improving production efficiency.

[0055] Please continue to refer to Figure 5 , Figure 5 This is a structural diagram of a battery thickness inspection jig provided by an embodiment of the present utility model;

[0056] Furthermore, the fixture also includes a battery thickness inspection jig 20 for detecting the width and thickness of the convex battery;

[0057] Please combine Figure 1 and Figure 5 The battery thickness inspection jig 20 is provided with a through slot 21 , and the entrance 210 of the through slot 21 is connected to the sliding opening 310 of the folding inspection jig 30 ;

[0058] A thickness limiting beam 22 is mounted on the battery thickness inspection jig 20 above the through slot 21 . The distance between the bottom of the thickness limiting beam 22 and the bottom of the through slot 21 is a predetermined thickness threshold of the convex battery.

[0059] Specifically, the two ends of the thickness limiting beam 22 are respectively fixed on the two groove edges of the through groove 21;

[0060] like Figure 5 As shown, a cylindrical arc-shaped blocking portion 221 is provided at the bottom of the thickness-limiting beam 22 .

[0061] More specifically, the outlet 211 of the through slot 21 is configured as an "eight"-shaped bell mouth;

[0062] The opening size of the outlet 211 at the end away from the inlet 210 is larger than the opening size of the outlet 211 at the end close to the inlet 210 .

[0063] like Figure 6 As shown, the convex battery Figure 1 The upper side of the folding inspection fixture 30 enters the sliding groove 31 and gradually slides down to the blocking groove 311 position along the sliding groove 31 by gravity. Figure 4 As shown, the folding height H of the convex battery shall not exceed the distance h2 between the step surface 43 and the bottom of the blocking groove 311, and the width W of the convex battery shall not exceed the distance between the two detection walls 42 of the fixture. Otherwise, it will be blocked by the limit block 40. The blocked convex battery is a product with unqualified folding height or width. Figure 4 In the figure, h1 is the depth of the sliding groove 31; h2 is greater than h1;

[0064] Furthermore, after the convex battery passes through the blocking groove 311, it slides from the entrance 210 and continues to slide into the through groove 21 until it slides to the position of the thickness limiting beam 22. It should be noted that the thickness T of the convex battery must not exceed the minimum distance between the arc-shaped blocking portion 221 and the bottom of the through groove 21. Otherwise, it will be blocked by the thickness limiting beam 22. That is, the blocked convex battery is a convex battery with unqualified thickness.

[0065] Specifically, the fixture further includes a mounting base 10;

[0066] The battery thickness inspection jig 20 is fixedly installed on the mounting base 10 in an inclined manner, and the battery thickness inspection jig 20 and the folding inspection jig 30 are detachably fixedly connected together.

[0067] In this embodiment, the battery thickness inspection jig 20 and the folding inspection jig 30 are both tilted. In this way, the gravity of the battery can be used to make it slide down automatically, so no additional transmission device is required, which is very convenient and saves energy.

[0068] Specifically, a mounting groove 32 for mounting the limit block 40 is provided on opposite sides of the sliding groove 31 in the middle of the folding inspection fixture 30, and the ends of the mounting grooves 32 facing each other are both connected to the sliding groove 31;

[0069] The limit block 40 is provided with a plurality of stepped holes 41 running longitudinally therethrough for inserting fixing members; the bottom of the mounting groove 32 is provided with fixing holes 321 corresponding to the positions of the stepped holes 41; the bottom end of the fixing member can pass through the stepped hole 41 and be fixedly connected to the fixing hole 321.

[0070] In this embodiment, the limit block 40 is detachably mounted on the folding inspection fixture 30. The inspector can set the position of the fixing hole 321 to correspond to the battery width to be inspected, so the fixture can be promoted and applied to the inspection of products of different sizes.

[0071] Specifically, the sliding groove 31 includes two trumpet-shaped grooves symmetrically arranged with the blocking groove 311 as the symmetry center; the opening size of the trumpet-shaped groove at one end away from the blocking groove 311 is larger than the opening size of the trumpet-shaped groove at one end close to the blocking groove 311.

[0072] Specifically, both ends of the step surface 43 along the sliding direction of the convex battery are respectively provided with arc chamfers 431. The arc chamfers 431 can prevent the surface of the battery from being scratched or squeezed.

[0073] In summary, the fixture provided in this embodiment can quickly identify convex batteries with poor folding height, width and thickness during the convex battery inspection process when mass-producing soft-pack convex lithium-ion batteries, greatly reducing the pressure and time cost of personnel inspection, saving production time and improving production efficiency.

[0074] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixture for detecting convex batteries, characterized in that: Including a folding inspection jig (30); The folding inspection jig (30) is provided with a sliding groove (31), and the folding inspection jig (30) is symmetrically provided with a limit block (40) on opposite sides of the sliding groove (31), and the surfaces of the two limit blocks (40) facing each other are provided with a step structure; The step structure comprises a smooth detection wall (42) and a step surface (43) extending in a direction away from the detection wall (42); the detection walls (42) of the two limit blocks (40) extend into the sliding groove (31) and together with the sliding groove (31) form a blocking groove (311) for blocking convex batteries exceeding a predetermined width from passing through; The distance between the step surface (43) and the bottom of the sliding groove (31) is a predetermined folding height threshold of the convex battery.

2. A fixture for detecting convex batteries according to claim 1, characterized in that: Also included is a battery thickness inspection jig (20); A through slot (21) is provided on the battery thickness inspection jig (20), and an entrance (210) of the through slot (21) is connected to a sliding opening (310) of the folding inspection jig (30); A thickness limiting beam (22) is mounted on the battery thickness inspection jig (20) above the through slot (21), and the distance between the bottom of the thickness limiting beam (22) and the bottom of the through slot (21) is a predetermined thickness threshold of the convex battery.

3. A fixture for detecting convex batteries according to claim 2, characterized in that: The two ends of the thickness-limiting beam (22) are respectively fixed on the two groove edges of the through groove (21); A cylindrical arc-shaped blocking portion (221) is provided at the bottom of the thickness-limiting beam (22).

4. A fixture for detecting convex batteries according to claim 2, characterized in that: The outlet (211) of the through groove (21) is configured as a trumpet-shaped "eight" shape; The opening size of the end of the outlet (211) away from the inlet (210) is larger than the opening size of the end of the outlet (211) close to the inlet (210).

5. The fixture for detecting convex batteries according to claim 2, characterized in that: Also included is a mounting base (10); The battery thickness inspection jig (20) is fixedly installed on the mounting base (10) in an inclined manner, and the battery thickness inspection jig (20) and the folding inspection jig (30) are detachably fixedly connected together.

6. A fixture for detecting convex batteries according to claim 1, characterized in that: The middle portion of the folding inspection jig (30) is provided with a mounting groove (32) for mounting the limit block (40) on opposite sides of the sliding groove (31), and the ends of the mounting grooves (32) facing each other are both connected to the sliding groove (31); The limiting block (40) is provided with a plurality of stepped holes (41) longitudinally extending therethrough for inserting fixing members; the bottom of the mounting groove (32) is provided with fixing holes (321) at positions corresponding to the respective stepped holes (41); the bottom end of the fixing member can pass through the stepped hole (41) and be fixedly connected to the fixing hole (321).

7. A fixture for detecting convex batteries according to claim 6, characterized in that: The sliding groove (31) comprises two trumpet-shaped grooves symmetrically arranged with the blocking groove (311) as a symmetric center; the opening size of the trumpet-shaped groove at one end away from the blocking groove (311) is larger than the opening size of the trumpet-shaped groove at one end close to the blocking groove (311).

8. The fixture for detecting convex batteries according to claim 1, characterized in that: The step surface (43) is provided with arc chamfers (431) at both ends along the sliding direction of the convex battery.

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