A kind of lead-acid battery busbar false welding detection marking tool

CN224933846UActive Publication Date: 2026-11-03TIANNENG BATTERY GRP (MAANSHAN) NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202522286842.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-11-03
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

Existing methods for detecting poor solder joints in lead-acid battery busbars cannot simultaneously perform detection and marking, resulting in low detection efficiency and inconvenience for subsequent maintenance.

Method used

A tooling for detecting and marking faulty solder joints in lead-acid battery busbars is designed. By combining a rod and a marking mechanism, the detection and marking operations are integrated. The combination of the rod and the marking mechanism improves detection efficiency and facilitates subsequent maintenance.

Benefits of technology

It achieves integrated operation of detection and marking, improves detection efficiency, and facilitates subsequent maintenance. The marker pen can be quickly installed and replaced through the fixing sleeve and locking bolt.

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Abstract

The utility model discloses a kind of lead-acid battery busbar false welding detection marking tool, it is related to lead-acid battery production detection auxiliary device technical field.The utility model includes pole body, the end of pole body is provided with the end of conical;One side of pole body is connected with marking mechanism by connecting piece;Marking mechanism is a marking pen, connecting piece includes the connecting rod welded in one side of pole body, the end of connecting rod is provided with the fixed sleeve A for marking pen to pass through, locking bolt A is set on fixed sleeve A.The utility model is combined by pole body and marking mechanism, realizes the integrated operation of detection and marking, improves detection efficiency and is convenient for subsequent maintenance;And the quick installation and replacement of marking pen are realized by fixed sleeve and locking bolt.
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Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary devices for lead-acid battery production and testing, and in particular relates to a tooling for marking and detecting poor solder joints in lead-acid battery busbars. Background Technology

[0002] In the battery production process, there is a electrode group welding process. This process involves manually welding or casting a specified number of identical electrode plates in parallel with the terminals to form an electrode group. The connection between the electrode plates and the terminals is called the busbar. The electrode plates consist of positive and negative plates, and there is usually one more negative plate than positive plate. Therefore, the entire electrode group has the positive plates in the middle and the negative plates on both sides. During the casting and welding of the busbar using an automatic casting and welding machine, the temperature at both ends of the mold—that is, the two negative side plates—is lower, and the lead liquid cools down quickly. Before the lead liquid and the negative plate lugs can melt together, the lead liquid solidifies, resulting in a weak weld between the negative side plates and the busbar, or a poor weld. This can easily cause the negative electrode plates to fall off outside the lugs, resulting in a large number of returns and other quality problems.

[0003] The commonly used testing method involves workers using screwdrivers, pliers, or other testing tools to forcefully insert them under the busbar, applying leverage to try to pry the busbar off the terminal block in order to detect cold solder joints. However, existing testing tools can only detect whether there are cold solder joints on the busbar, and cannot mark the cold solder joint area after the test is completed to facilitate subsequent maintenance operations. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for detecting and marking faulty solder joints in lead-acid battery busbars. By combining the rod and the marking mechanism, it achieves integrated operation of detection and marking, thus solving the problems raised in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a tooling for detecting and marking faulty solder joints in lead-acid battery busbars, including a rod with a tapered end. A marking mechanism is connected to one side of the rod via a connector. The combination of the rod and the marking mechanism enables integrated detection and marking operations, improving detection efficiency and facilitating subsequent maintenance.

[0006] Furthermore, the marking mechanism is a marker pen, and the connecting member includes a connecting rod welded to one side of the rod body. The end of the connecting rod is provided with a fixing sleeve A for the marker pen to pass through, and a locking bolt A is provided on the fixing sleeve A. The marker pen can be quickly installed and replaced through the fixing sleeve and the locking bolt.

[0007] Furthermore, the marking mechanism includes a cylinder containing liquid pigment, with an opening at the bottom end of the cylinder; a plug is movably inserted through the opening, and a sealing plate A is provided at the end of the plug; several L-shaped flow channels are provided on the top of the plug, with one opening end located on the side wall of the plug and the other opening end located on the end face of the plug; the top of the sealing plate is connected to a movable column that slides along the inner wall of the cylinder via a connecting rod; an end cap is detachably installed at the end of the cylinder, and a spring connects the end cap and the movable column. By using a cylinder structure to hold liquid pigment and controlling the pigment flow through the plug and flow channels, a continuous ink supply marking method is achieved.

[0008] Furthermore, a connecting post is provided on the outer wall of the cylinder, and a connecting sleeve for connecting rod insertion is connected to one side of the rod. A locking bolt C is provided on the connecting sleeve, and the cylinder and the rod are detachably connected through the connecting post and the connecting sleeve.

[0009] Furthermore, the bottom side of the movable column is provided with a socket for inserting a connecting rod, and the movable column is provided with several through holes; a through hole is provided at the center of the end cap, and a guide post for moving through the through hole is connected to the top surface of the movable column, and a sealing plate B is provided at the end of the guide post; an exhaust hole is provided on the end cap located around the through hole. Through the movable column, through holes and guide post and other structures, the smooth flow of pigment is ensured and leakage is prevented.

[0010] Furthermore, the end of the rod is detachably equipped with a handle, which allows the operator to choose a more comfortable grip method according to their needs.

[0011] Furthermore, the handle includes a U-shaped handle body; it also includes a fixing sleeve B for inserting the rod, the outer wall of the fixing sleeve B being provided with a locking bolt B; the opposite side walls of the fixing sleeve B are provided with fixing blocks A fixed to the handle body via a crossbar A, the fixing blocks A being provided with a locking bolt one; the end of the fixing sleeve B is connected to one side of a crossbar B, the two ends of the crossbar B are respectively connected to fixing blocks B fixed to the handle body, the fixing blocks B being provided with a locking bolt two.

[0012] Furthermore, it also includes a round rod, with fixed blocks C fixed to the handle body at both ends. Locking bolts are provided on the fixed blocks C, and additional gripping points are provided through the round rod and the fixed blocks C.

[0013] Furthermore, the rubber layer on the outer wall of the round rod and the grip body serves to prevent slipping and provide cushioning, thereby improving operating comfort and safety.

[0014] This utility model has the following beneficial effects: This invention combines a rod and a marking mechanism to achieve integrated detection and marking operations, improving detection efficiency and facilitating subsequent maintenance; and the fixing sleeve and locking bolt enable quick installation and replacement of the marker.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 This is a schematic diagram of the detection marking tooling structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the detection marking tooling structure of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the marking mechanism structure of this utility model; Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 for Figure 3 Enlarged view of a section at point B in the middle; Figure 6 This is a schematic diagram of the detection marking tooling structure of this utility model. Figure 3 ; Figure 7 This is a schematic diagram of the handle structure of this utility model; The attached diagram lists the components represented by each number as follows: 1-Rod body, 2-Cylinder body, 3-Handle, 10-End, 11-Connecting sleeve, 12-Locking bolt C, 13-Connecting post, 14-Connecting rod, 15-Fixing sleeve A, 16-Locking bolt A, 17-Marker, 21-End cap, 22-Guide post, 23-Moving post, 24-Connecting rod body, 25-Sealing plate A, 26-Plug post, 30-Handle body, 31-Crossbar A, 32-Fixing rod Fixed sleeve B, 33-crossbar B, 34-round bar, 201-opening, 211-through hole, 212-vent hole, 220-sealing plate B, 231-through hole, 232-insertion sleeve, 261-flow channel, 311-fixed block A, 312-locking bolt one, 321-locking bolt B, 331-fixed block B, 332-locking bolt two, 341-fixed block C, 342-locking bolt three. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Example 1: Please refer to Figure 1-2 As shown, this utility model is a tooling for detecting and marking poor solder joints in lead-acid battery busbars. It includes a rod 1 that is held in use, with a tapered end 10 at the end of the rod 1. A marking mechanism is connected to one side of the rod 1 via a connector. In use, the end 10 is inserted under the busbar, and the busbar is pried open by lever force to detect poor solder joints. When a poor solder joint is detected, the marking mechanism marks the position of the poor solder joint.

[0021] Method 1: For example Figure 1 The marking mechanism is a marker pen 17. The connecting parts include a connecting rod 14 welded to one side of the rod body 1. The end of the connecting rod 14 is provided with a fixing sleeve A15 for the marker pen 17 to pass through. A locking bolt A16 is provided on the fixing sleeve A15. During installation, the marker pen 17 is inserted into the fixing sleeve A15, and the locking bolt A16 is tightened to press the marker pen 17, thereby firmly fixing the marker pen 17 to the fixing sleeve A15. When performing cold solder joint detection, the operator holds a tool and uses the tapered end 10 at the end of the rod body 1 to pry and detect. Once a cold solder joint is found, the tool is tilted slightly so that the tip of the marker pen 17 at the front end contacts the surface of the cold solder joint, leaving a clear mark. Method 2: For example Figure 2-5The marking mechanism provided by the present invention includes a cylinder 2 containing liquid pigment, with an end cap 21 detachably mounted on the end of the cylinder 2; an opening 201 is provided at the bottom end of the cylinder 2; a plug 26 is movably disposed through the opening 201, and a sealing plate 25 is provided at the end of the plug 26; a plurality of L-shaped flow channels 261 are provided on the upper part of the plug 26, with one opening end of the flow channel 261 located on the side wall of the plug 26 and the other opening end located on the end face of the plug 26; and the top of the sealing plate 25 is connected to a cylinder along the cylinder via a connecting rod 24. A movable column 23 that slides on the inner wall of body 2 is connected to end cap 21 by a spring 241; the bottom side of movable column 23 is provided with a sleeve 232 for inserting connecting rod 24, and several through holes 231 are provided on movable column 23; a through hole 211 is provided at the center of end cap 21, and a guide column 22 that moves through the through hole 211 is connected to the top surface of movable column 23, and a sealing plate B220 is provided at the end of guide column 22; an exhaust hole 212 is provided on end cap 21 located around the through hole 211.

[0022] When not in use, the spring 241 is in the extended or natural state, at which time the sealing plate 25 seals against the inner bottom side of the cylinder 2; and the bottom side of the sealing plate B220 abuts against the end face of the end cap 21 to form a seal, preventing the pigment from leaking from the top and being discharged through the flow channel 261 when not in use.

[0023] When marking is required, the operator presses the entire fixture downwards, causing the plug 26 at the bottom of the cylinder 2 to contact the surface of the manifold to be marked. Continuing to apply downward pressure, the plug 26 overcomes the elastic force of the spring 241 and moves upwards. The plug 26 then retracts into the cylinder 2, connecting to the rod 24. At this point, the liquid pigment inside the cylinder 2 is discharged through the flow channel 261 and adheres to the surface of the manifold, forming a dot mark. Through the transmission action of the connecting rod 24 and the guide post 22, the control sealing plate B220 detaches from the end face of the end cap 21. The vent hole 212 on the end cap 21 opens, ensuring airflow and allowing the pigment to flow smoothly. Once marking is complete, the operator lifts the fixture, the pressure disappears, the spring 241 pushes the movable post 23 back to its original position, causing the plug 26 to move downwards, re-blocking the opening 201 and cutting off the pigment flow.

[0024] Based on the above, the connector includes a connecting post 13 and a connecting sleeve 11. The connecting sleeve 11 is located on one side of the rod body 1, and the connecting post 13 is located on the outer wall of the cylinder body 2. The connecting post 13 is inserted into the connecting sleeve 11, and a locking bolt C12 is provided on the connecting sleeve 11.

[0025] Example 2: In order to facilitate the selection of the gripping method of the tool according to the operator's operating habits, a handle 3 is detachably set at the end of the rod 1.

[0026] like Figure 6-7The grip 3 provided by the present invention includes a U-shaped grip body 30; a fixing sleeve B32 for inserting a rod 1 is installed at the open end of the grip body 30, and a locking bolt B321 is provided on the outer wall of the fixing sleeve B32; fixing blocks A311 are fixed on the grip body 30 and connected to the opposite side walls of the fixing sleeve B32 via a crossbar A31, and a locking bolt 312 is provided on the fixing block A311; the end of the fixing sleeve B32 is connected to one side of a crossbar B33, and the two ends of the crossbar B33 are respectively connected to fixing blocks B331 fixed on the grip body 30, and a locking bolt 332 is provided on the fixing block B331.

[0027] Specifically, to improve grip comfort and prevent palm sweating and slippage during prolonged use, a round rod 34 is also provided. Both ends of the round rod 34 are connected to fixing blocks C341 fixed to the handle body 30, and locking bolts C342 are installed on the fixing blocks C341. A rubber layer is provided on the outer wall of the round rod 34 and the grip portion of the handle body 30. When gripping the fixture, the palm rests on the grip portion of the handle body 30, and the fingers hook onto the round rod 34. This allows for convenient gripping of the handle 30 through the cooperation of the round rod 34 and the handle body 30.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tooling for detecting and marking poor solder joints in lead-acid battery busbars, characterized in that: Includes a rod (1), the end of which is provided with a tapered end (10). A marking mechanism is connected to one side of the rod (1) via a connector; the marking mechanism is a marker pen (17), and the connector includes a connecting rod (14) welded to one side of the rod (1). The end of the connecting rod (14) is provided with a fixing sleeve A (15) for the marker pen (17) to pass through, and a locking bolt A (16) is provided on the fixing sleeve A (15).

2. The lead-acid battery busbar poor solder joint detection and marking fixture according to claim 1, characterized in that, The marking mechanism includes a cylinder (2) containing liquid pigment inside, and an opening (201) is provided at the bottom end of the cylinder (2). A plug (26) is movably inserted through the opening (201), and a sealing plate (25) is provided at the end of the plug (26). The plug (26) is provided with a plurality of L-shaped flow channels (261), one opening end of the flow channel (261) is located on the side wall of the plug (26), and the other opening end is located on the end face of the plug (26); The top of the sealing plate (25) is connected to a movable column (23) that slides along the inner wall of the cylinder (2) via a connecting rod (24). An end cap (21) is detachably installed at the end of the cylinder (2). A spring (241) is connected between the end cap (21) and the movable column (23).

3. The lead-acid battery busbar poor solder joint detection and marking fixture according to claim 2, characterized in that, The outer wall of the cylinder (2) is provided with a connecting column (13), and one side of the rod (1) is connected to a connecting sleeve (11) for inserting the connecting column (13), and a locking bolt C (12) is provided on the connecting sleeve (11).

4. The lead-acid battery busbar poor solder joint detection and marking fixture according to claim 2, characterized in that, The bottom side of the movable column (23) is provided with a sleeve (232) for inserting the connecting rod (24), and the movable column (23) is provided with several through holes (231). A through hole (211) is provided at the center of the end cap (21), and a guide post (22) of the movable through hole (211) is connected to the top surface of the movable post (23). A sealing plate B (220) is provided at the end of the guide post (22). An exhaust hole (212) is provided on the end cap (21) located around the through hole (211).

5. A lead-acid battery busbar poor solder joint detection and marking fixture according to any one of claims 1-4, characterized in that, The end of the rod (1) is detachably equipped with a handle (3).

6. The lead-acid battery busbar poor solder joint detection and marking fixture according to claim 5, characterized in that, The handle (3) includes a U-shaped handle body (30). It also includes a fixing sleeve B (32) for inserting the rod (1), the outer wall of the fixing sleeve B (32) is provided with a locking bolt B (321); the opposite side walls of the fixing sleeve B (32) are provided with fixing blocks A (311) connected to the handle body (30) by a crossbar A (31), and a locking bolt A (312) is provided on the fixing block A (311).

7. The lead-acid battery busbar poor solder joint detection and marking fixture according to claim 6, characterized in that, The end of the fixed sleeve B (32) is connected to one side of a crossbar B (33), and the two ends of the crossbar B (33) are respectively connected to a fixed block B (331) fixed on the handle body (30), and a locking bolt two (332) is provided on the fixed block B (331).

8. A lead-acid battery busbar poor solder joint detection and marking fixture according to claim 6 or 7, characterized in that, It also includes a round rod (34), with fixed blocks C (341) fixed on the handle body (30) at both ends, and locking bolts three (342) are provided on the fixed blocks C (341).

9. The lead-acid battery busbar poor solder joint detection and marking fixture according to claim 8, characterized in that, The rubber layer is provided on the outer wall of the gripping part of the round rod (34) and the handle body (30).