Pole, adapter sheet welded battery top cover

Abstract

The utility model discloses a kind of pole, adapter piece welding formula battery top cover, including top cover shell, installation site is provided on top cover shell, installation site is provided with mounting hole;Electrode structure, electrode structure is installed in installation site;Electrode structure includes: pole structure, pole structure is installed in mounting hole, pole structure is provided with electricity end, lower positioning ring part;Connecting piece, connecting piece includes installation part and electricity part, installation part is provided with positioning hole, lower positioning ring part is inserted in positioning hole;Positioning hole is provided with positioning step, lower positioning ring part is provided with positioning recess, positioning step and positioning recess cooperate;Installation part and lower positioning ring part are presented welding setting.Using the above scheme, a kind of connecting piece and pole are positioned splicing using split, and welding is formed to form assembly, and different connecting piece and different pole combination can form more kinds of assembly to improve the yield of connecting piece and pole, reduce the pole of stockpiling cost, adapter piece welding formula battery top cover.

Description

Technical Field

[0001] This utility model belongs to the field of new energy batteries, specifically relating to a battery top cover with welded poles and adapter pieces. Background Technology

[0002] The battery tabs are a crucial component of the battery, serving as a bridge for energy transfer between the battery's interior and exterior.

[0003] Existing connectors are integrated with the terminals, as disclosed in Chinese Patent No. CN202422279841.2, etc. Because the connector and terminal are integrated, different models of connectors and terminals need to be configured into integrated units for different battery models. In some batteries, the connector structure is the same but the terminal structure is different, while in other batteries, the terminal structure is the same but the connector structure is different.

[0004] Among these, the integrated component structure is more complex, has more processing steps, and is more difficult to process, resulting in a lower yield rate. In addition, each integrated component is only compatible with a corresponding battery model, and the production cost of a single integrated component is high, which greatly increases the stockpiling cost. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a battery top cover with a welded terminal block and a connecting piece that are positioned and spliced ​​by separate connecting pieces and terminals and welded to form an assembly. Different combinations of connecting pieces and terminals can form more diverse assemblies, thereby improving the yield of connecting pieces and terminals and reducing stockpiling costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes: a top cover housing with a mounting position and a through mounting hole; an electrode structure mounted on the mounting position; the electrode structure includes: a pole post structure, which is inserted into the mounting hole, with a power receiving end above the mounting hole and a lower positioning ring below the mounting hole; and a connecting piece, which includes a mounting part and a power receiving part, the mounting part having a through positioning hole, and the lower positioning ring inserted into the positioning hole; a positioning step protruding from the inner circumferential wall of the positioning hole, and a positioning groove on the outer circumference of the bottom of the lower positioning ring, the positioning step and the positioning groove cooperating; the mounting part and the lower positioning ring are welded together.

[0007] The present invention is further configured such that: both the positioning step and the positioning groove are arranged in a ring shape; and a ring-shaped welding part is provided between the bottom inner circumference of the positioning step and the bottom outer circumference of the lower positioning ring.

[0008] The present invention is further configured such that: the top of the positioning step abuts against the top of the positioning groove; and / or, the bottom of the positioning step is flush with the bottom of the lower positioning ring.

[0009] The present invention is further configured such that: the depth of the positioning hole is h1, the height of the positioning step is h2, wherein h1 > h2; and / or, the bottom of the top cover housing is provided with a third positioning groove circumferentially disposed around the mounting hole, and the lower positioning ring portion extends upward into the third positioning groove.

[0010] The present invention is further configured such that: the electrode structure includes a welded upper electrode part and a lower electrode part, the power connection terminal is disposed in the upper electrode part, the lower positioning ring part is disposed in the lower electrode part, and the upper electrode part is provided with an upper positioning ring part above the mounting hole; the electrode structure also includes: a sealing ring, which is clamped and disposed between the top cover housing and the lower positioning ring part; and an insulating pad, which is clamped and disposed between the top cover housing and the upper positioning ring part.

[0011] The present invention is further configured such that: the insulating pad is arranged in a ring shape; the top of the top cover housing is provided with a plurality of first positioning parts arranged circumferentially around the mounting hole, and the bottom of the insulating pad is provided with a plurality of first positioning grooves arranged circumferentially, with each first positioning part and the first positioning groove being configured in a concave-convex fit; the top of the insulating pad is provided with a plurality of second positioning parts arranged circumferentially, and the bottom of the upper positioning ring is provided with a plurality of second positioning grooves arranged circumferentially, with each second positioning part and the second positioning groove being configured in a concave-convex fit.

[0012] The present invention is further configured such that: a first positioning ring post is provided on the top of the top cover housing and is arranged around the outer periphery of the insulating pad; and / or, a second positioning ring post is provided on the outer periphery of the top of the insulating pad and is arranged around the outer periphery of the upper positioning ring portion; and / or, a third positioning ring post is provided on the inner periphery of the bottom of the insulating pad and is inserted downward into the mounting hole, the third positioning ring post being located between the inner peripheral wall of the mounting hole and the lower pole post portion.

[0013] The present invention is further configured such that the height of the first positioning part is s, wherein 0.1mm≤s≤0.6mm.

[0014] The present invention is further configured such that: the lower pole post includes a cylindrical upper extension and a connecting part that covers the top of the upper extension, and the upper surface of the connecting part and the lower surface of the upper pole post are attached and welded together.

[0015] The present invention is further configured such that: the top cover housing includes an upper housing and a lower housing, and the sealing ring and the insulating pad respectively clamp the upper housing from the top and bottom.

[0016] By adopting the above technical solutions, 1. before assembling the battery top cover, the simpler electrode structure and connecting piece are processed by stamping, resulting in a higher yield rate for the parts. 2. Since the electrode structure and connecting piece are separate structures, different electrode structures and different connecting pieces can be combined to form more diverse assemblies to adapt to different battery models. Moreover, the same electrode structure and / or the same connecting piece can adapt to different battery models, which can greatly reduce stockpiling costs. 3. The first positioning is formed by the cooperation of the lower positioning ring and the positioning hole, and the second positioning is formed by the cooperation of the positioning step and the positioning groove. Finally, the mounting part and the lower positioning ring are fixed by welding, achieving a precise and stable connection between the electrode structure and the connecting piece. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an assembly drawing illustrating a specific embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of a specific embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view of a specific embodiment of the present utility model;

[0021] Figure 4 for Figure 3 Enlarged view of part of the image;

[0022] Figure 5 for Figure 4 Enlarged view of A in the middle;

[0023] Figure 6 The explosion of the lower pole piece and connecting piece in a specific embodiment of this utility model Figure 1 ;

[0024] Figure 7 The explosion of the lower pole piece and connecting piece in a specific embodiment of this utility model Figure 2 ;

[0025] Figure 8 This is an exploded view of the upper shell, insulating pad, and upper pole post in a specific embodiment of this utility model;

[0026] Figure 9 This is an exploded view of the insulating pad and the upper electrode post in a specific embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Top cover housing;

[0029] 11. Mounting position; 12. Third positioning groove; 13. Upper housing; 14. Lower housing;

[0030] 111. Mounting holes;

[0031] 2. Electrode structure;

[0032] 21. Negative electrode; 22. Positive electrode;

[0033] 3. Pole column structure;

[0034] 31. Upper pole section; 32. Lower pole section;

[0035] 311. Upper positioning ring; 312. Power terminal; 321. Lower positioning ring; 322. Positioning groove; 323. Upper extension; 324. Connecting part;

[0036] 4. Connecting piece;

[0037] 41. Installation Department; 42. Electrical Connection Department;

[0038] 411. Positioning hole; 412. Positioning step;

[0039] 5. Welding section;

[0040] 6. Sealing ring;

[0041] 7. Insulating mat;

[0042] 81. First positioning part; 82. First positioning groove; 83. Second positioning part; 84. Second positioning groove;

[0043] 91. First positioning ring post; 92. Second positioning ring post; 93. Third positioning ring post. Detailed Implementation

[0044] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0045] like Figures 1-9 As shown, this utility model discloses a battery top cover with welded terminals and adapter plates, comprising:

[0046] The top cover housing 1 is rectangular, and mounting positions 11 are provided at both ends of the length of the top cover housing 1. Each mounting position 11 is provided with a through mounting hole 111.

[0047] Electrode structure 2 includes a negative electrode 21 disposed at the mounting position 11 at the left end and a positive electrode 22 disposed at the mounting position 11 at the right end.

[0048] Specifically, electrode structure 2 includes:

[0049] The electrode post structure 3 is installed through the mounting hole 111. The electrode post structure 3 has a power connection terminal 312 above the mounting hole 111 and a lower positioning ring 321 below the mounting hole 111; and...

[0050] The connecting piece 4 includes a mounting part 41 and a power receiving part 42. The mounting part 41 is provided with a positioning hole 411 that extends vertically, and the lower positioning ring part 321 is inserted into the positioning hole 411.

[0051] In addition, a positioning step 412 is provided on the inner peripheral wall of the positioning hole 411, and a positioning groove 322 is provided on the outer periphery of the bottom of the lower positioning ring 321. The positioning step 412 and the positioning groove 322 cooperate.

[0052] The mounting part 41 and the lower positioning ring part 321 are welded together.

[0053] Therefore, 1. Before assembling the battery top cover, the simpler electrode structure 3 and connecting piece 4 are processed by stamping to increase the yield of finished parts; 2. Since the electrode structure 3 and connecting piece 4 are separate structures, different electrode structures 3 and different connecting pieces 4 can be combined to form more diverse assemblies to adapt to different battery models. Moreover, the same electrode structure 3 and / or the same connecting piece 4 can be adapted to different battery models, which can greatly reduce the stockpiling cost; 3. The lower positioning ring 321 and the positioning hole 411 are used to form the first positioning, and the positioning step 412 and the positioning groove 322 are used to form the second positioning. Finally, the mounting part 41 and the lower positioning ring 321 are fixed by welding, which realizes the precise and stable connection of the electrode structure 3 and the connecting piece 4.

[0054] Preferably, in this embodiment, both the positioning step 412 and the positioning groove 322 are arranged in a ring shape; a ring-shaped welding part 5 is provided between the bottom inner circumference of the positioning step 412 and the bottom outer circumference of the lower positioning ring 321.

[0055] Therefore, the annular positioning step 412 and positioning groove 322 are used to improve the stability of the assembly, and the annular welding part 5 effectively welds the bottom of the positioning step 412 and the bottom of the lower positioning ring 321 to a relatively fixed position, resulting in stronger welding strength.

[0056] Preferably, the top of the positioning step 412 abuts against the top of the positioning groove 322; the bottom of the positioning step 412 is flush with the bottom of the lower positioning ring 321, which not only makes assembly and positioning more convenient, but also makes the overall structure more flat.

[0057] Preferably, the depth of the positioning hole 411 is h1, and the height of the positioning step 412 is h2, wherein h1 > h2; in addition, the bottom of the top cover housing 1 is provided with a third positioning groove 12 surrounding the mounting hole 111, and the lower positioning ring 321 extends upward into the third positioning groove 12.

[0058] Therefore, the lower positioning ring 321 and the positioning hole 411 form a horizontal positioning, and the positioning step 412 and the positioning groove 322 form both horizontal and vertical positioning to ensure the accuracy of the assembly of the lower positioning ring 321 and the mounting part 41. Furthermore, the lower positioning ring 321 and the third positioning groove 12 form both horizontal and vertical positioning to ensure the accuracy of the assembly of the lower positioning ring 321 and the top cover housing 1.

[0059] Specifically, the pole structure 3 includes a welded upper pole part 31 and a lower pole part 32. The power connection terminal 312 is disposed at the upper end of the upper pole part 31, and the lower positioning ring part 321 is integrally formed and disposed on the lower outer periphery of the lower end of the lower pole part 32. The upper pole part 31 is provided with an upper positioning ring part 311 above the mounting hole 111.

[0060] Specifically, electrode structure 2 also includes:

[0061] The sealing ring 6 is clamped and disposed between the top cover housing 1 and the lower positioning ring 321;

[0062] Insulating pad 7 is clamped between the top cover housing 1 and the upper positioning ring 311.

[0063] Therefore, the upper pole piece 31 and the lower pole piece 32 are aligned and welded together, and the upper positioning ring 311 of the upper pole piece 31 and the lower positioning ring 321 of the lower pole piece 32 clamp the top cover housing 1 to achieve positioning and installation. The sealing ring 6 is placed between the top cover housing 1 and the lower positioning ring 321 to isolate the lower positioning ring 321 from the contact between the top cover housing 1 and the top cover housing 1, which has the function of preventing leakage and sealing the gap between the pole piece structure 3 and the mounting hole 111. The insulating pad 7 is placed between the top cover housing 1 and the upper positioning ring 311 to isolate the upper positioning ring 311 from the contact between the top cover housing 1 and the top cover housing 1, which has the function of preventing leakage.

[0064] Preferably, the insulating pad 7 is arranged in a ring shape; the top of the top cover housing 1 is provided with a plurality of first positioning parts 81 arranged circumferentially around the mounting hole 111, and the bottom of the insulating pad 7 is provided with a plurality of first positioning grooves 82 arranged circumferentially, with each first positioning part 81 and the first positioning groove 82 being configured in a concave-convex fit; the top of the insulating pad 7 is provided with a plurality of second positioning parts 83 arranged circumferentially, and the bottom of the upper positioning ring 311 is provided with a plurality of second positioning grooves 84 arranged circumferentially, with each second positioning part 83 and the second positioning groove 84 being configured in a concave-convex fit.

[0065] The stability of the circumferential rotation limit of the insulating pad 7 and the top cover housing 1 is improved by the cooperation of the first positioning part 81 and the first positioning groove 82, and the stability of the circumferential rotation limit of the insulating pad 7 and the upper positioning ring part 311 is improved by the cooperation of the second positioning part 83 and the second positioning groove 84.

[0066] In addition, the top of the top cover housing 1 is provided with a first positioning ring post 91 that is arranged around the outer periphery of the insulating pad 7; the top outer periphery of the insulating pad 7 is provided with a second positioning ring post 92 that is arranged around the outer periphery of the upper positioning ring portion 311.

[0067] This allows the first positioning ring post 91 to be positioned horizontally on the outer periphery of the insulating pad 7, and the second positioning ring post 92 to be positioned horizontally on the outer periphery of the upper positioning ring part 311, thereby improving the assembly accuracy of the upper pole post part 31, the insulating pad 7, and the top cover housing 1.

[0068] Preferably, the bottom inner circumference of the insulating pad 7 is provided with a third positioning ring post 93 that is inserted downward into the mounting hole 111. The third positioning ring post 93 is located between the inner circumferential wall of the mounting hole 111 and the lower pole post 32.

[0069] Therefore, 1. the third positioning ring 93 is positioned horizontally within the mounting hole 111, improving the assembly accuracy of the insulating pad 7 and the top cover housing 1; 2. the third positioning ring 93 is spaced between the top cover housing 1 and the lower pole post 32, preventing the lower pole post 32 from contacting the top cover housing 1 and causing leakage.

[0070] The height of the first positioning part 81 is s, where 0.1mm≤s≤0.6mm.

[0071] In addition, the lower pole post 32 includes a cylindrical upper extension 323 and a connecting part 324 that covers the top of the upper extension 323. The upper surface of the connecting part 324 is attached to and welded to the lower surface of the upper pole post 31. Specifically, the connecting part 324 is connected to the upper pole post 31 by ultrasonic welding or laser penetration welding.

[0072] The top cover housing 1 includes an upper housing 13 and a lower housing 14. The sealing ring 6 and the insulating gasket 7 clamp the upper housing 13 from the top and bottom respectively, resulting in a better sealing effect.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery top cover with welded terminals and adapter plates, characterized in that, include: Top cover housing (1), the top cover housing (1) is provided with a mounting position (11), the mounting position (11) is provided with a mounting hole (111) that runs vertically through the top and bottom; Electrode structure (2), said electrode structure (2) is mounted at mounting position (11); The electrode structure (2) includes: A pole post structure (3) is installed through a mounting hole (111). The pole post structure (3) has a power terminal (312) above the mounting hole (111) and a lower positioning ring (321) below the mounting hole (111). The connecting piece (4) includes a mounting part (41) and a power receiving part (42). The mounting part (41) is provided with a positioning hole (411) that runs vertically through the top and bottom. The lower positioning ring part (321) is inserted into the positioning hole (411). A positioning step (412) is provided on the inner peripheral wall of the positioning hole (411), and a positioning groove (322) is provided on the bottom outer periphery of the lower positioning ring (321). The positioning step (412) and the positioning groove (322) cooperate. The mounting part (41) and the lower positioning ring part (321) are welded together.

2. The electrode post and adapter plate welded battery top cover according to claim 1, characterized in that: The positioning step (412) and the positioning groove (322) are both arranged in a ring shape; A ring-shaped welded part (5) is provided between the bottom inner circumference of the positioning step (412) and the bottom outer circumference of the lower positioning ring (321).

3. The electrode post and adapter plate welded battery top cover according to claim 2, characterized in that: The top of the positioning step (412) abuts against the top of the positioning groove (322); and / or, The bottom of the positioning step (412) is flush with the bottom of the lower positioning ring (321).

4. The electrode post and adapter plate welded battery top cover according to claim 1, characterized in that: The depth of the positioning hole (411) is h1, and the height of the positioning step (412) is h2, wherein h1 > h2; and / or, The bottom of the top cover housing (1) is provided with a third positioning groove (12) surrounding the mounting hole (111), and the lower positioning ring (321) extends upward into the third positioning groove (12).

5. The electrode post and adapter plate welded battery top cover according to claim 1, characterized in that: The pole post structure (3) includes a welded upper pole post (31) and a lower pole post (32), the power terminal (312) is disposed on the upper pole post (31), the lower positioning ring (321) is disposed on the lower pole post (32), and the upper pole post (31) has an upper positioning ring (311) above the mounting hole (111); The electrode structure (2) further includes: A sealing ring (6) is clamped between the top cover housing (1) and the lower positioning ring (321); An insulating pad (7) is clamped between the top cover housing (1) and the upper positioning ring (311).

6. The electrode post and adapter plate welded battery top cover according to claim 5, characterized in that: The insulating pad (7) is arranged in a ring shape; The top of the top cover housing (1) is provided with a plurality of first positioning parts (81) arranged circumferentially around the mounting hole (111), and the bottom of the insulating pad (7) is provided with a plurality of first positioning grooves (82) arranged circumferentially, and each of the first positioning parts (81) and the first positioning grooves (82) are provided in a concave-convex fit. The top of the insulating pad (7) is provided with a plurality of second positioning parts (83) arranged in a circumferential direction, and the bottom of the upper positioning ring (311) is provided with a plurality of second positioning grooves (84) arranged in a circumferential direction. Each of the second positioning parts (83) and the second positioning grooves (84) are arranged in a concave-convex fit.

7. The electrode post and adapter plate welded battery top cover according to claim 6, characterized in that: The top of the top cover housing (1) is provided with a first positioning ring post (91) circumferentially disposed around the outer periphery of the insulating pad (7); and / or, The top outer periphery of the insulating pad (7) is provided with a second positioning ring post (92) arranged around the outer periphery of the upper positioning ring portion (311); and / or, The bottom inner circumference of the insulating pad (7) is provided with a third positioning ring post (93) that is inserted downward into the mounting hole (111). The third positioning ring post (93) is located between the inner circumferential wall of the mounting hole (111) and the lower pole post (32).

8. The electrode post and adapter plate welded battery top cover according to claim 6, characterized in that: The height of the first positioning part (81) is s, where 0.1mm≤s≤0.6mm.

9. The electrode post and adapter plate welded battery top cover according to claim 5, characterized in that: The lower pole post (32) includes a cylindrical upper extension (323) and a connecting part (324) that covers the top of the upper extension (323). The upper surface of the connecting part (324) and the lower surface of the upper pole post (31) are attached and welded together.

10. The electrode post and adapter plate welded battery top cover according to claim 5, characterized in that: The top cover housing (1) includes an upper housing (13) and a lower housing (14), and the sealing ring (6) and the insulating pad (7) respectively clamp the upper housing (13) from above and below.

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