Tab re-judging structure

Abstract

The utility model discloses a pole lug re-judging structure. The pole lug re-judging structure comprises a bearing part and a limiting part, the bearing part is used for bearing a battery cell; the limiting part is connected with the bearing part, the limiting part and the bearing part define a limiting cavity and a detection cavity, the limiting cavity is used for limiting the core package, and the detection cavity is used for limiting the tab and detecting whether the tab is qualified or not, so that the tab can be detected through the detection cavity; according to the invention, a worker is prevented from detecting the height of the tab of the battery cell by using a caliper type detection tool, the detection accuracy of the tab of the battery cell is ensured, the detection effect of the tab of the battery cell is improved, and meanwhile, the detection efficiency of the tab of the battery cell is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a pole ear complex judgment structure. BACKGROUND

[0002] With the development of science and technology, lithium battery is an important part of automatic assembly production line, and the market scale of lithium battery detection industry is also rapidly expanding, in order to understand the electrical performance and safety performance of battery, battery production unit and battery use unit will test the battery before putting into market, the height of the pole ear of the battery is inconsistent in production, the staff uses the caliper type detection tool to detect the height of the pole ear of the battery, however, artificial detection is uncontrollable, leading to the detection effect of the pole ear of the existing battery is poor. UTILITARIAN CONTENT

[0003] One purpose of the utility model is to provide a pole ear complex judgment structure, which aims to solve the technical problem that the staff uses the caliper type detection tool to detect the height of the pole ear of the battery, however, artificial detection is uncontrollable, leading to the detection effect of the pole ear of the existing battery is poor.

[0004] To achieve the above purpose, the utility model provides a kind of scheme: a kind of pole ear complex judgment structure, the pole ear complex judgment structure is used to detect whether the pole ear of battery is qualified, the battery includes core package and the pole ear of the core package electrical connection, comprising:

[0005] Bearing part for bearing battery;And

[0006] Limiting portion, connecting with the bearing part, the limiting portion and the bearing part are surrounded and form limiting cavity and detection cavity, the limiting cavity is used to limit the core package, the detection cavity is used to limit the pole ear, and whether the pole ear is qualified is detected.

[0007] Optionally, the part of the bearing part in the detection cavity is provided with a retest area.

[0008] Optionally, the limiting portion has a functional wall forming the detection cavity, and the functional wall is provided with a chamfer at an end away from the bearing part.

[0009] Optionally, the part of the bearing part in the limiting cavity is provided with a grab opening for leaking the side of the core package towards the bearing part.

[0010] Optionally, the limiting portion is provided with a relief groove on the side wall towards the limiting cavity.

[0011] Optionally, the limiting part comprises a main limiting member and a secondary limiting member, the main limiting member and the bearing part are connected to form the detection cavity, the secondary limiting member and the bearing part are connected, and the main limiting member, the bearing part and the secondary limiting member jointly form the limiting cavity, and the detection cavity and the limiting cavity are in communication with each other.

[0012] Optionally, the number of the main limiting members is at least two, and the at least two main limiting members are oppositely arranged at one end of the bearing part, and the main limiting member and the bearing part are detachably connected.

[0013] The number of the secondary limiting members is at least two, and the at least two secondary limiting members are oppositely arranged at the other end of the bearing part, and the secondary limiting member and the bearing part are detachably connected.

[0014] Optionally, one end of the bearing part is provided with a plurality of first positioning holes, the other end of the bearing part is provided with a plurality of second positioning holes, the plurality of first positioning holes are arranged at intervals along the length direction of the bearing part and arranged at intervals along the width direction of the bearing part, and the plurality of second positioning holes are arranged at intervals along the length direction of the bearing part and arranged at intervals along the width direction of the bearing part.

[0015] The tab rejudication structure further comprises a first fastener and a second fastener, the first fastener is connected through the main limiting member and one of the plurality of first positioning holes, and the second fastener is connected through the secondary limiting member and one of the plurality of second positioning holes.

[0016] Optionally, the tab rejudication structure further comprises a leveling member, the leveling member is connected to the side of the bearing part away from the limiting part, and the leveling member is used for keeping the surface of the bearing part in contact with the battery cell in a horizontal state.

[0017] Optionally, the side of the bearing part away from the limiting part is provided with a plurality of threaded holes, the number of the leveling members is a plurality, and the plurality of leveling members are respectively and threadedly connected with the plurality of threaded holes.

[0018] The beneficial effects of the utility model lie in:

[0019] The utility model provides a tab rejudication structure, and a bearing part is used for bearing a battery cell, a limiting part is connected with the bearing part, the limiting part and the bearing part form a limiting cavity and a detection cavity, the limiting cavity is used for limiting a core bag, the detection cavity is used for limiting a tab, and whether the tab is qualified is detected, so that the tab is detected through the detection cavity, the height of the tab of the battery cell is detected by using a caliper type detection tool, the detection accuracy of the tab of the battery cell is ensured, the detection effect of the tab of the battery cell is improved, and the detection efficiency of the tab of the battery cell is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0021] Figure 1 is the assembly structure schematic diagram of the tab rejudgment structure provided by the first embodiment of the present application;

[0022] Figure 2 is the assembly structure front view of the tab rejudgment structure provided by the first embodiment of the present application;

[0023] Figure 3 is the exploded structure schematic diagram of the tab rejudgment structure provided by the second embodiment of the present application;

[0024] Figure 4 is the cross-sectional structure schematic diagram of the tab rejudgment structure provided by the third embodiment of the present application.

[0025] Explanation of reference numerals:

[0026] 100, tab rejudgment structure;

[0027] 10, bearing part; 10a, re-measurement area; 10b, first positioning hole; 10c, second positioning hole; 10d, threaded hole; 11, grab opening;

[0028] 20, limiting part; 20a, limiting cavity; 20b, detection cavity; 20c, avoiding groove; 21, functional wall; 211, chamfer; 22, main limiting piece; 23, auxiliary limiting piece;

[0029] 30, first fastener;

[0030] 40, second fastener;

[0031] 50, leveling piece. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0033] Please refer to the drawings Figures 1-4The embodiment of the present application provides an application of a tab rejudication structure 100, which is used for detecting whether the tab of a battery cell is qualified.

[0034] Please refer to the accompanying drawings Figures 1-2 In the embodiment of the present application, the tab rejudication structure 100 comprises a bearing part 10 and a limiting part 20; the bearing part 10 is used for bearing the battery cell; the limiting part 20 is connected with the bearing part 10, and the limiting part 20 and the bearing part 10 surround to form a limiting cavity 20a and a detection cavity 20b; the limiting cavity 20a is used for limiting the battery cell; the detection cavity 20b is used for limiting the tab and detecting whether the tab is qualified, so that the detection of the tab is realized through the detection cavity 20b, the detection of the height of the tab of the battery cell by the staff using a caliper type detection tool is avoided, the detection accuracy of the tab of the battery cell is ensured, the detection effect of the tab of the battery cell is improved, and the detection efficiency of the tab of the battery cell is improved.

[0035] Please refer to the accompanying drawings Figures 1-2 In the embodiment of the present application, the bearing part 10 is used as a supporting component of the tab rejudication structure 100, and the bearing part 10 is used for bearing the battery cell; so that the battery cell is fixed to the bearing part 10.

[0036] Please refer to the accompanying drawings Figures 1-2 In the embodiment of the present application, the limiting part 20 is arranged on the upper side of the bearing part 10, and the limiting part 20 is connected with the bearing part 10, so that the limiting part 20 is fixed to the bearing part 10. Optionally, the limiting part 20 and the bearing part 10 are integrally connected, the connection strength between the limiting part 20 and the bearing part 10 is ensured, the connection stability between the limiting part 20 and the bearing part 10 is improved, and the separation between the limiting part 20 and the bearing part 10 is avoided.

[0037] The limiting part 20 and the bearing part 10 surround to form the limiting cavity 20a and the detection cavity 20b, and the outer surface of the limiting part 20 and the outer surface of the bearing part 10 are used as the inner side wall of the limiting cavity 20a and the inner side wall of the detection cavity 20b. The limiting cavity 20a is used for limiting the battery cell, so that the position of the battery cell is limited by the inner side wall of the limiting cavity 20a, and the position accuracy of the battery cell relative to the limiting cavity 20a is ensured. The detection cavity 20b is used for limiting the tab, so that the position of the tab is limited by the inner side wall of the detection cavity 20b, and the staff can directly observe whether the tab interferes with the inner side wall of the detection cavity 20b. When the tab interferes with the inner side wall of the detection cavity 20b, the tab is determined as unqualified; when the tab does not interfere with the inner side wall of the detection cavity 20b, the tab is determined as qualified.

[0038] The detection cavity 20b detects whether the tab is qualified. In order to realize the detection of the tab through the detection cavity 20b, the use of a caliper type detection tool by the staff to detect the height of the tab of the battery cell is avoided. The detection accuracy of the tab of the battery cell is ensured, the detection effect of the tab of the battery cell is improved, and the detection efficiency of the tab of the battery cell is improved.

[0039] Please refer to the attached Figures 1-2 The part of the bearing part 10 located in the detection cavity 20b is provided with a retesting area 10a, and the area of the retesting area 10a is smaller than the area of the detection cavity 20b. In order to detect the tab of the battery cell in the production process, the detection effect of the tab of the battery cell is further improved.

[0040] Please refer to the attached Figures 1-2 The limiting part 20 has a functional wall 21 forming the detection cavity 20b, and the end of the functional wall 21 away from the bearing part 10 is provided with a chamfer 211. The functional wall 21 is prevented from cutting the tab of the battery cell, and the performance of the tab of the battery cell is ensured.

[0041] Please refer to the attached Figures 1-2 The part of the bearing part 10 located in the limiting cavity 20a is provided with a grab 11, which is used for the side of the bearing part 10 facing the outer leakage core package. In order to facilitate the staff to grasp the bearing part 10 through the space of the grab 11, the grasping convenience of the bearing part 10 is improved, and the loading and unloading convenience between the battery cell and the bearing part 10 is improved.

[0042] Please refer to the attached Figures 1-2 The side wall of the limiting part 20 facing the limiting cavity 20a is provided with an avoidance slot 20c, which is used for avoiding the sharp corner of the core package. The sharp corner of the core package is avoided from contacting the limiting part 20, and the sharp corner of the core package is prevented from scratching the limiting part 20.

[0043] Please refer to the attached Figure 3In the second embodiment, the limiting part 20 comprises a main limiting member 22 and a secondary limiting member 23. The main limiting member 22 and the bearing part 10 are connected to form a detection cavity 20b, and the outer surface of the main limiting member 22 and the outer surface of the bearing part 10 serve as the inner side wall of the detection cavity 20b. In this way, the inner side wall of the detection cavity 20b limits the position of the tab, so that the staff can directly observe whether the tab interferes with the inner side wall of the detection cavity 20b. When the tab interferes with the inner side wall of the detection cavity 20b, the tab is determined to be unqualified, and when the tab does not interfere with the inner side wall of the detection cavity 20b, the tab is determined to be qualified. The secondary limiting member 23 is connected to the bearing part 10, and the main limiting member 22, the bearing part 10, and the secondary limiting member 23 jointly form a limiting cavity 20a, and the outer surface of the main limiting member 22, the outer surface of the bearing part 10, and the outer surface of the secondary limiting member 23 serve as the inner side wall of the limiting cavity 20a. In this way, the inner side wall of the limiting cavity 20a limits the position of the core package, thereby ensuring the position accuracy of the core package relative to the limiting cavity 20a. The detection cavity 20b and the limiting cavity 20a are in communication with each other, so that the whole battery cell can enter the detection cavity 20b and the limiting cavity 20a.

[0044] Please refer to the accompanying drawings Figure 3 The number of main limiting members 22 is at least two, and at least two main limiting members 22 are oppositely arranged at one end of the bearing part 10, so as to respectively limit the two tabs of the battery cell. The main limiting member 22 and the bearing part 10 are detachably connected, so that the main limiting member 22 can be connected to or separated from the bearing part 10, thereby improving the convenience of replacing the main limiting member 22. At the same time, the distance of the detection cavity 20b is adjusted, so as to adapt to tabs of different sizes, thereby improving the versatility of the detection cavity 20b.

[0045] Please refer to the accompanying drawings Figure 3 The number of secondary limiting members 23 is at least two, and at least two secondary limiting members 23 are oppositely arranged at the other end of the bearing part 10, so as to respectively limit the two side walls of the core package. The secondary limiting member 23 and the bearing part 10 are detachably connected, so that the secondary limiting member 23 can be connected to or separated from the bearing part 10, thereby adjusting the distance of the limiting cavity 20a to adapt to core packages of different sizes, thereby improving the versatility of the limiting cavity 20a.

[0046] Please refer to the accompanying drawings Figure 3The one end of the bearing part 10 is provided with a plurality of first positioning holes 10b, and the other end of the bearing part 10 is provided with a plurality of second positioning holes 10c. The plurality of first positioning holes 10b are arranged at intervals along the length direction of the bearing part 10 and arranged at intervals along the width direction of the bearing part 10, so that the main limiting part 22 is adjusted relative to the bearing part 10 through the plurality of first positioning holes 10b, and the distance of the detection cavity 20b is adjusted. The plurality of second positioning holes 10c are arranged at intervals along the length direction of the bearing part 10 and arranged at intervals along the width direction of the bearing part 10, so that the auxiliary limiting part 23 is adjusted relative to the bearing part 10 through the plurality of second positioning holes 10c, and the distance of the limiting cavity 20a is adjusted.

[0047] Please refer to the accompanying drawings Figure 3 The tab rejudication structure 100 further comprises a first fastener 30 and a second fastener 40. The first fastener 30 is connected through one of the plurality of first positioning holes 10b and the main limiting part 22, so that the main limiting part 22 is positioned and connected with the first positioning hole 10b through the first fastener 30, and the connection effect of the main limiting part 22 and the bearing part 10 is ensured. The second fastener 40 is connected through one of the plurality of second positioning holes 10c and the auxiliary limiting part 23, so that the auxiliary limiting part 23 is positioned and connected with the second positioning hole 10c through the second fastener 40, and the connection effect of the main limiting part 22 and the bearing part 10 is ensured.

[0048] Please refer to the accompanying drawings Figure 4 In the third embodiment, the tab rejudication structure 100 further comprises a leveling part 50, and the leveling part 50 is connected to the side of the bearing part 10 away from the limiting part 20, so that the leveling part 50 is fixed to the bottom of the bearing part 10. The leveling part 50 is used to keep the surface of the bearing part 10 in contact with the battery cell in a horizontal state, so as to ensure the horizontal effect of the bearing part 10 and improve the detection effect of the tab rejudication structure 100.

[0049] Please refer to the accompanying drawings Figure 4 The side of the bearing part 10 away from the limiting part 20 is provided with a plurality of threaded holes 10d, and the number of the leveling parts 50 is plural. The plurality of leveling parts 50 are respectively screwed with the plurality of threaded holes 10d, so that the leveling parts 50 are connected with the bearing part 10 through the threaded holes 10d, and the leveling parts 50 are adjusted relative to the bearing part 10. The horizontal effect of the bearing part 10 is improved by arranging the plurality of leveling parts 50.

[0050] The beneficial effects of the utility model lie in:

[0051] The utility model provides an application in a kind of tab complex determination structure 100, bearing part 10 is used to bear electric core;Limiting portion 20 is connected with bearing part 10, limiting portion 20 and bearing part 10 surround and form limiting cavity 20a and detection cavity 20b, limiting cavity 20a is used to limit core package, detection cavity 20b is used to limit tab, and whether the tab is qualified is detected, so as to realize detection to tab by detection cavity 20b, avoid staff to use caliper type detection tool to detect the height of the tab of electric core, guarantee the detection accuracy of the tab of electric core, improve the detection effect of the tab of electric core, simultaneously, improve the detection efficiency of the tab of electric core.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0053] It should also be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a middle element.

[0054] In addition, the descriptions involving "first", "second" and the like in the utility model are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0055] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the contents of the utility model specification and drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A tab rejudgment structure for detecting whether a tab of a battery cell is qualified, the battery cell comprising a core package and a tab electrically connected to the core package, characterized in that, The electrode core ear rejudgment structure comprises: a bearing part for bearing an electrode core; and a limiting part connected with the bearing part, the limiting part and the bearing part surrounding a limiting cavity and a detection cavity, the limiting cavity for limiting the core package, and the detection cavity for limiting the electrode core ear and detecting whether the electrode core ear is qualified.

2. The tab recrushing structure according to claim 1, characterized in that, The part of the bearing part located in the detection cavity is provided with a rechecking area.

3. The tab recrushing structure according to claim 1, characterized in that, The limiting part has a functional wall forming the detection cavity, and the end of the functional wall away from the bearing part is provided with a chamfer.

4. The tab recrushing structure of claim 1, wherein The part of the bearing part located in the limiting cavity is provided with a grab opening for leaking the core package to one side of the bearing part.

5. The tab recrushing structure of claim 1, wherein The side wall of the limiting part towards the limiting cavity is provided with an avoiding groove.

6. The tab reclosing structure according to any one of claims 1 to 5, characterized in that, The limiting part comprises a main limiting part and a secondary limiting part, the main limiting part and the bearing part are connected to surround the detection cavity, the secondary limiting part and the bearing part are connected, and the main limiting part, the bearing part and the secondary limiting part jointly surround the limiting cavity, and the detection cavity and the limiting cavity are connected with each other.

7. The tab recrushing structure according to claim 6, characterized in that, The number of the main limiting part is at least two, and at least two main limiting parts are oppositely arranged at one end of the bearing part, and the main limiting part and the bearing part are detachably connected. The number of the secondary limiting part is at least two, and at least two secondary limiting parts are oppositely arranged at the other end of the bearing part, and the secondary limiting part and the bearing part are detachably connected.

8. The tab recrushing structure according to claim 7, characterized in that, One end of the bearing part is provided with a plurality of first positioning holes, the other end of the bearing part is provided with a plurality of second positioning holes, the plurality of first positioning holes are arranged in the length direction and the width direction of the bearing part, and the plurality of second positioning holes are arranged in the length direction and the width direction of the bearing part. The electrode core ear rejudgment structure further comprises a first fastener and a second fastener, the first fastener is connected through the main limiting part and one of the plurality of first positioning holes, and the second fastener is connected through the secondary limiting part and one of the plurality of second positioning holes.

9. The tab recrushing structure according to any one of claims 1 to 5, characterized in that, The electrode core ear rejudgment structure further comprises a leveling part, the leveling part is connected with the side of the bearing part away from the limiting part, and the leveling part is used for keeping the surface of the bearing part in contact with the electrode core in a horizontal state.

10. The tab recrushing structure of claim 9, wherein, The side of the bearing part away from the limiting part is provided with a plurality of threaded holes, and the number of the leveling part is a plurality, and a plurality of the leveling parts are respectively and threadedly connected with a plurality of the threaded holes.

Images