Connecting line structure

By designing rectangular connection terminals, plugs and sockets, and locking mechanisms on the lead-acid battery connection lines, the problems of easy disconnection and misconnection of the connection lines are solved, achieving a stable connection and error prevention function, and ensuring the safety and reliability of the lead-acid batteries.

CN224233069UActive Publication Date: 2026-05-12SICHUAN LIYANG BATTERY GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN LIYANG BATTERY GROUP CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing lead-acid battery connection wires are prone to coming loose during transportation, causing short circuits due to exposed positive and negative terminals. They also lack anti-misconnection structures, making it easy to connect them incorrectly and damage the battery, resulting in unstable connections.

Method used

Design a connection cable structure that uses rectangular connection terminals, plugs and sockets to cooperate, and achieves a stable connection through a locking tongue and locking mechanism. Set up an anti-misconnection structure to prevent positive and negative terminals from contacting each other and from being connected incorrectly.

Benefits of technology

It achieves the stability and error prevention function of the connecting wire, avoids short circuits during transportation and incorrect connection problems when connecting electrical appliances, and ensures the firmness and safety of the connection.

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Abstract

The utility model provides a connecting line structure, and belongs to the technical field of storage battery production, the connecting line structure comprises two rectangular connecting terminals, one end face of each connecting terminal is provided with a mounting groove, the mounting groove penetrates through one side of each connecting terminal and penetrates through the top surface and the bottom surface of each connecting terminal, and the inner side of each mounting groove and the other side of each connecting terminal are spaced by a preset length; the plug is arranged on the bottom surface of the mounting groove and faces the length direction of the connecting terminal; the jacks are formed in one end faces of the connecting terminals in the length directions of the connecting terminals, and the plugs and the jacks on the connecting terminals are matched with the jacks and the plugs on the other connecting terminals respectively; one end of each pair of connecting wires is coated in the other end of the corresponding connecting terminal and is communicated with the corresponding plug and the jack; one end of the spring bolt is connected to one end face of one connecting terminal; and the locking mechanism is arranged on the other connecting terminal. The structure is stable and firm in connection, can effectively prevent exposed contact of the terminals, and has a mistake-proofing function.
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Description

Technical Field

[0001] This application belongs to the field of battery manufacturing technology, and in particular relates to a connecting wire structure. Background Technology

[0002] The 6MF 2.5L lead-acid battery for starting uses positive and negative connection wires. Two wires are led out from the battery; the positive wire uses a male terminal, and the negative wire uses a female terminal. Before leaving the factory, a protective sleeve is installed at the positive terminal to prevent the positive and negative connection wires from being exposed and making contact during transportation, thus preventing a short circuit. The two connection wires from the appliance also use compatible male and female terminals; simply plugging in the corresponding terminals completes the connection between the lead-acid battery and the appliance. However, after transportation and use, this connection structure has some problems. During battery transportation, bumps and shaking can cause the protective sleeve on the positive terminal to easily fall off, leaving the positive and negative connection wires exposed and making contact. Furthermore, there is no error-proofing structure, which may lead to incorrect connection when connecting the appliance to the battery, causing a short circuit and damaging the battery. Also, after connecting the appliance to the battery, the terminal connections are loose and unstable. Utility Model Content

[0003] To address the shortcomings of the prior art, this application provides a connecting wire structure that provides a stable and secure connection, effectively prevents exposed terminal contact, and has error prevention capabilities.

[0004] To achieve the above objectives, the present invention employs the following technology:

[0005] A connecting wire structure, comprising:

[0006] Two rectangular connecting terminals are provided. A mounting groove is provided on one end face of the connecting terminal along the length direction. The mounting groove extends through one side of the connecting terminal and through the top and bottom surfaces of the connecting terminal. The inner side of the mounting groove is set at a predetermined distance from the other side of the connecting terminal.

[0007] The plug is located on the bottom surface of the mounting groove and is oriented towards the length of the connecting terminal.

[0008] A socket is formed on one end face of the connecting terminal along the length of the connecting terminal, and the plug and socket on the connecting terminal respectively mate with the socket and plug on the other connecting terminal.

[0009] Two pairs of connecting wires, one end of each pair of connecting wires is wrapped inside the other end of the corresponding connecting terminal and connected to the corresponding plug and socket;

[0010] The locking tongue is connected at one end to one end face of one of the connecting terminals and is arranged in the direction of the length of the connecting terminal;

[0011] A locking mechanism, located on another connection terminal, is used to lock and release the latch.

[0012] Furthermore, a barb is formed at the other end of the latch. The locking mechanism includes a mating groove formed on the top surface of the connecting terminal along the thickness direction. The mating groove is arranged along the length direction of the connecting terminal and passes through one end face of the connecting terminal and the mounting groove. A mating plate facing the length direction of the connecting terminal is provided in the mating groove. The mating plate is parallel to the bottom surface of the mating groove and spaced at a preset distance from it. The mating plate is located below the bottom surface of the mounting groove. The barb faces the top surface of the corresponding connecting terminal. The outer end face of the barb is a bevel, which is used to abut against the end of the mating plate, so that the latch produces an elastic deformation that bends downward toward the mating plate. A locking hole is provided on the mating plate for the barb to engage.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By opening mounting slots on the two connecting terminals and matching them with plugs and sockets, a set of corresponding anti-misconnection structures is formed, which makes it easy for wiring personnel to distinguish the positive and negative terminals of the line and avoid short circuits caused by incorrect connections, which could damage the battery. At the same time, one end of the connecting wire is covered by the connecting terminal, which separates the positive and negative terminals of the lead-acid battery from each other and prevents them from contacting each other, which can effectively avoid the problem of short circuits caused by exposed positive and negative terminals during transportation.

[0015] 2. Placing the pressure plate inside the mating groove can prevent wiring personnel from accidentally pressing the pressure plate while handling the plugged-in connectors, causing the push block to enter the locking hole, separating the barb from the locking hole, and thus causing the two connectors to loosen, affecting the stability of the connector connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of an embodiment of this application.

[0017] Figure 2 This is a front view of the connection terminal in an embodiment of this application.

[0018] Figure 3 Figure 2 A magnified view of part A in the middle.

[0019] Figure 4 This is a schematic diagram of the structure of the connection terminal in an embodiment of this application.

[0020] Figure 5 This is a diagram showing the cooperation relationship between the locking mechanism and the locking tongue in an embodiment of this application.

[0021] Reference numerals: 1-Connecting terminal, 11-Mounting slot, 12-Vertical slot, 2-Plug, 3-Socket, 4-Connecting wire, 5-Lock tongue, 51-Barb, 6-Locking mechanism, 61-Matching slot, 62-Matching plate, 63-Lock hole, 64-Guide rod, 65-Mounting plate, 66-Pressure plate, 67-Push block, 68-Spring. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0023] This application provides a connecting line structure, such as... Figures 1-5 As shown, it includes: two connection terminals 1, plug 2, socket 3, two pairs of connection wires 4, locking tongue 5, locking mechanism 6, etc.

[0024] The two connecting terminals 1 are rectangular. One end face of each connecting terminal 1 has a mounting groove 11 extending along its length, penetrating both the top and bottom surfaces of the terminal 1. The inner side of the mounting groove 11 is positioned a predetermined distance from the other side of the connecting terminal 1. Each connecting terminal 1 has a plug 2 on the bottom surface of its mounting groove 11, facing the length of the connecting terminal 1. Each connecting terminal 1 also has a socket 3 along its length, which mates with the plug 2. The plug 2 and socket 3 on one connecting terminal 1 respectively mate with the socket 3 and plug 2 on the other connecting terminal 1. The other ends of the two connecting terminals 1 each cover one end of a pair of connecting wires 4. Correspondingly, one end of each pair of connecting wires 4 connects to the corresponding plug 2 and socket 3. The connecting terminals 1 can be injection molded. A locking tongue 5 is connected to one end face of one of the connecting terminals 1 and is positioned along its length.

[0025] When applying, such as Figures 1-4As shown, the other ends of a pair of connecting wires 4 are respectively connected to the positive and negative terminals of the lead-acid battery, with the positive terminal being one end of the connector 2 and the negative terminal being one end of the socket 3; the other ends of another pair of connecting wires 4 are respectively connected to the positive and negative terminals of the appliance, with the positive terminal being one end of the socket 3 and the negative terminal being one end of the connector 2. The distance between the inner side of the mounting groove 11 and the other side of the connecting terminal 1 is half the width of the connecting terminal 1. When connecting the lead-acid battery to the appliance, one end face of the two connecting terminals 1 is set opposite to each other, so that the connector 2 and socket 3 of one connecting terminal 1 are aligned with the socket 3 and connector 2 of the other connecting terminal 1, and then the two connecting terminals 1 are closed, with the connector 2 inserted into the corresponding socket 3. One end face of the two connecting terminals 1 abuts against the bottom surface of the corresponding mounting groove 11, and the inner sides of the mounting groove 11 on the two connecting terminals 1 are in contact with each other. At the same time, the locking mechanism 6 locks the locking tongue 5, so that the two connecting terminals 1 are securely connected. The mounting slots 11 on the two connecting terminals 1, together with the plug 2 and the socket 3, form a set of corresponding anti-misconnection structures, which makes it easy for wiring personnel to distinguish the positive and negative terminals of the line and avoid short circuits caused by incorrect connection, thus preventing damage to the battery. At the same time, one end of the connecting wire 4 is covered by the connecting terminal 1, so that the positive and negative terminals of the lead-acid battery are separated from each other and do not come into contact, which can effectively avoid the problem of short circuits caused by exposed positive and negative terminals during transportation.

[0026] Specifically, such as Figures 2-5 As shown, a barb 51 is formed at the other end of the latch 5. The latch 5 can be made of thermosetting plastic. The locking mechanism 6 includes a mating groove 61 formed on the top surface of the connecting terminal 1 along the thickness direction. The mating groove 61 is arranged along the length direction of the connecting terminal 1 and is located in the middle of the top surface of the connecting terminal 1. The mating groove 61 passes through one end face of the connecting terminal 1 and the mounting groove 11. A mating plate 62 is provided in the mating groove 61 facing the length direction of the connecting terminal 1. The mating plate 62 is parallel to the bottom surface of the mating groove 61 and is spaced at a preset distance from it, for passing through the latch 5. The mating plate 62 is located below the bottom surface of the mounting groove 11. The barb 51 faces the top surface of the corresponding connecting terminal 1. The outer end face of the barb 51 is a bevel, for abutting against the end of the mating plate 62, so that the other end of the latch 5 produces an elastic deformation that bends downward toward the mating plate 62. A square locking hole 63 is provided on the mating plate 62 for the barb 51 to be engaged.

[0027] In application, the plugs 2 of the two connecting terminals 1 are aligned with the corresponding sockets 3. At this time, the locking tongue 5 is parallel and located below the mating plate 62, and the projection of the barb 51 along the length of the connecting terminal 1 is located on the end face of the mating plate 62. As the two connecting terminals 1 are brought together and the plug 2 is inserted into the socket 3, the barb 51 abuts against the end of the mating plate 62. Since the outer end face of the barb 51 is inclined, as the two connecting terminals 1 are closed, the other end of the locking tongue 5 will bend downwards towards the mating plate 62 and move against the bottom surface of the mating plate 62. When the plug 2 and the socket 3 are fully inserted, and one end face of the two connecting terminals 1 abuts against the bottom surface of the corresponding mounting groove 11, the barb 51 moves to the locking hole 63 and, under the elastic action of the locking tongue 5, latches into the locking hole 63, thereby making the two connecting terminals 1 firmly connected and effectively preventing the problem of the connecting terminals 1 from coming loose.

[0028] Specifically, such as Figure 2 , Figure 3 , Figure 5 As shown, guide rods 64 are vertically and slidably inserted through the mating plates 62 on both sides of the lock hole 63. A mounting plate 65 is located at the lower end of the guide rods 64, and a pressure plate 66 is vertically connected to the upper end of the guide rods 64. A push block 67 is located at the bottom of the pressure plate 66. The size of the push block 67 is adapted to the lock hole 63 for insertion. A spring 68 is sleeved on the guide rods 64, connecting the mounting plate 65 and the mating plate 62. When the spring 68 is in its natural state, the push block 67 is located above the lock hole 63. To separate the two connecting terminals 1, simply press the pressure plate 66 to allow the push block 67 to enter the lock hole 63, pushing out the barb 51 inside the lock hole 63. At this point, the plug 2 can be pulled out of the socket 3. The pressure plate 66 rises under the action of the spring 68, and the push block 67 returns to above the lock hole 63. Through the arrangement of the pressure plate 66, the spring 68, and the push block 67, the separation of the barb 51 from the lock hole 63 is achieved, making the operation relatively convenient.

[0029] Specifically, such as Figure 2 , Figure 3 , Figure 5 As shown, when the spring 68 is in its natural state, the pressure plate 66 is located inside the mating groove 61. Placing the pressure plate 66 inside the mating groove 61 can prevent wiring personnel from accidentally pressing the pressure plate 66 when handling the plugged-in connection terminal 1, causing the push block 67 to enter the locking hole 63, separating the barb 51 from the locking hole 63, which would then cause the two connection terminals 1 to loosen and affect the stability of the connection of the connection terminals 1.

[0030] Preferred, such as Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, two locking tongues 5 can be arranged along the thickness direction of the connecting terminal 1. The barbs 51 of the two locking tongues 5 are arranged facing each other, that is, facing the top and bottom surfaces of the connecting terminal 1 respectively. Correspondingly, there are two sets of locking mechanisms 6. The two sets of mating grooves 61 are respectively opened on the top and bottom surfaces of the corresponding connecting terminal 1. The two sets of locking mechanisms 6 are used to lock and release the corresponding locking tongues 5 respectively. Through the cooperation of the two sets of locking mechanisms 6 and the two locking tongues 5, the two connecting terminals 1 can be locked at multiple points, making the connection between the two connecting terminals 1 more firm and reliable. Moreover, the two locking mechanisms 6 and the locking tongues 5 are symmetrically arranged, the two barbs 51 are evenly stressed, and the structure is stable.

[0031] Preferably, multiple vertical grooves 12 can be formed on the top and bottom surfaces of the connecting terminal 1, so that the top and bottom surfaces of the connecting terminal 1 have a concave-convex structure, thereby increasing the friction and making it easier to separate the two connecting terminals 1.

[0032] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A connecting wire structure, characterized in that, include: Two connecting terminals (1) are rectangular in shape. One end face of the connecting terminal (1) is provided with a mounting groove (11) along the length direction. The mounting groove (11) passes through one side of the connecting terminal (1) and through the top and bottom surfaces of the connecting terminal (1). The inner side of the mounting groove (11) is set at a predetermined distance from the other side of the connecting terminal (1). The plug (2) is located on the bottom surface of the mounting groove (11) and is positioned along the length of the connecting terminal (1); A socket (3) is opened on one end face of the connecting terminal (1) along the length direction of the connecting terminal (1). The plug (2) and socket (3) on the connecting terminal (1) respectively mate with the socket (3) and plug (2) on the other connecting terminal (1). Two pairs of connecting wires (4), one end of each pair of connecting wires (4) is wrapped inside the other end of the corresponding connecting terminal (1) and connected to the corresponding plug (2) and socket (3); The locking tongue (5) is connected at one end to one end face of one of the connecting terminals (1) and is arranged in the length direction of the connecting terminal (1); A locking mechanism (6) is provided on another connecting terminal (1) for locking and releasing the latch (5).

2. The connecting wire structure according to claim 1, characterized in that, The other end of the latch (5) has a barb (51). The locking mechanism (6) includes a mating groove (61) opened on the top surface of the connecting terminal (1) along the thickness direction. The mating groove (61) is arranged along the length direction of the connecting terminal (1). The mating groove (61) passes through one end face of the connecting terminal (1) and the mounting groove (11). The mating groove (61) is provided with a mating plate (62) facing the length direction of the connecting terminal (1). The mating plate (62) is parallel to the bottom surface of the mating groove (61) and is spaced apart from it by a preset distance. The mating plate (62) is located below the bottom surface of the mounting groove (11). The barb (51) faces the top surface of the corresponding connecting terminal (1). The outer end face of the barb (51) is a slope, which is used to abut against the end of the mating plate (62) so that the latch (5) produces an elastic deformation that bends downward toward the mating plate (62). The mating plate (62) is provided with a locking hole (63) for the barb (51) to be engaged.

3. The connecting wire structure according to claim 2, characterized in that, Guide rods (64) are vertically and slidably inserted on the mating plates (62) on both sides of the lock hole (63). A mounting plate (65) is provided at the lower end of the guide rods (64). A pressure plate (66) is vertically connected to the upper end of the guide rods (64). A push block (67) is provided at the bottom of the pressure plate (66) for inserting into the lock hole (63). A spring (68) is sleeved on the guide rods (64). The spring (68) is connected between the mounting plate (65) and the mating plate (62). When the spring (68) is in its natural state, the push block (67) is located above the lock hole (63).

4. The connecting wire structure according to claim 3, characterized in that, When the spring (68) is in its natural state, the pressure plate (66) is located inside the mating groove (61).

5. A connecting wire structure according to claim 3, characterized in that, There are two locking tongues (5) arranged along the thickness direction of the connecting terminal (1). The barbs (51) of the two locking tongues (5) are set in opposite directions. There are two sets of locking mechanisms (6). The two mating grooves (61) are respectively opened on the top and bottom surfaces of the corresponding connecting terminal (1).