Lead-acid battery charging connecting line

Abstract

A lead-acid battery charging connecting line comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are respectively provided with a clamping end and a control end, the clamping end of the first clamping piece is angularly provided with a first clamping part, and the clamping end of the second clamping piece is angularly provided with a second clamping part. A clamping cavity is defined by the first clamping part, the first clamping piece, the second clamping part and the second clamping piece at the clamping end; anti-skid bulges are arranged on the end surfaces, far away from the bottom wall, of the side walls; the anti-skid bulge is positioned on the control end; an inserting piece is integrally formed on the side wall of the control end in a punching mode. According to the scheme, when the clamping cavity is formed, the control end is pressed during connection, so that the first clamping part is far away from the second clamping part, the cylindrical terminal is arranged in the clamping cavity between the first clamping part and the second clamping part, and the connecting wire can be stably connected with the cylindrical wiring terminal through occlusion of the first clamping part and the second clamping part on the connecting terminal.

Description

Technical Field

[0001] The utility model relates to the technical field of wire connection, in particular to a lead-acid battery charging connecting wire. Background Art

[0002] Valve-regulated sealed lead-acid batteries (hereinafter referred to as batteries) are divided into external formation and internal formation. Regardless of whether the internal or external formation process is used, the battery needs to be initially charged to activate the plates after assembly. With regard to current battery production technology, whether it is 2V, 6V or 12V batteries, battery manufacturers all use series constant current charging and discharging.

[0003] Series connection requires connecting wires; small-density battery cells usually use a thin-sheet terminal structure, and currently most manufacturers use connecting wires with elastic clips on both ends for charging and discharging; medium and large-density series batteries usually use M5, M6 or M8 copper terminal structures, and currently most manufacturers use perforated copper sheet connecting wires, which are locked with bolts of corresponding specifications. This process requires perforated copper sheet connecting wires, bolts, gaskets, wrenches or electric wrenches, which is cumbersome and inefficient. After the battery is formed and charged, removing the wires is also cumbersome and inefficient. In addition, bolts, gaskets, wrenches or electric wrenches are difficult to manage. Not only are they easy to lose or damage, but the electric wrench must be charged every day, and the bolts, gaskets and connecting wires must be cleaned and deacidified regularly. Therefore, this wiring method has the disadvantages of cumbersome operation, difficult management, high cost and low efficiency.

[0004] The patent document with publication number CN111009749A discloses a connecting wire for charging and discharging a battery, including a first clamping mechanism and a second clamping mechanism. The side of the first clamping mechanism is connected to a data line, and a connecting plate is fixed to the top of the first clamping mechanism; the connecting plate is rotatably connected to the second clamping mechanism through a pin shaft, and the second clamping mechanism and the pin shaft are connected by a torsion spring; contact members are provided on the sides of the first clamping mechanism and the second clamping mechanism where the connecting plates are provided, and the contact members are located at one end close to the data line, and the contact members include a first fixing plate and a second fixing plate, the first fixing plate is fixed to the side of the first clamping mechanism, and the second fixing plate is fixed to the side of the second clamping mechanism; the connecting wire adopts a clamp and a plug-in structure contact member to connect to the terminal, which is quick and time-saving. At the same time, the operation process does not require the aid of tools and auxiliary materials, and the wiring, disconnection and management are simple, with high efficiency and low cost.

[0005] The opposing surfaces of the dynamic clamping plate and the static clamping plate in the above invention adopt a tooth-like structure, which has a better performance in clamping the thin-sheet terminal structure, but it is easier for the columnar terminal structure to fall off when clamping, and its connection with the circuit is simply welded, which may cause the connector to fall off the circuit after long-term use. Summary of the Invention

[0006] The utility model aims to solve the technical problem that a connecting wire is unstable when being clamped when connected to a column terminal.

[0007] In order to solve the above technical problems, the utility model provides a lead-acid battery charging connection cable, including a first clamping member and a second clamping member, the first clamping member and the second clamping member are hinged, and the first clamping member and the second clamping member both have a clamping end and a control end, the clamping end of the first clamping member is provided with a first clamping portion at an angle, and the clamping end of the second clamping member is provided with a second clamping portion at an angle, and the first clamping portion, the first clamping member, the second clamping portion and the second clamping member are combined to form a clamping cavity at the clamping end; the first clamping member and the second clamping member are both stamped from sheet material to form a U-shaped structure with a bottom wall and side walls, and an anti-slip protrusion is provided on the end surface of the side wall away from the bottom wall; the anti-slip protrusion is located on the control end; a plug-in piece is integrally stamped on the side wall of the control end, the cross-section of the plug-in piece is arc-shaped, and a plurality of anti-slip grooves are provided on the outer side of the plug-in piece.

[0008] In this solution, the first clamping part and the second clamping part are respectively provided with a first clamping portion and a second clamping portion at the control ends of the first clamping member and the second clamping member. The first clamping portion, the first clamping member, the second clamping portion and the second clamping member together form a clamping cavity. The inner diameter of the clamping cavity is smaller than the diameter of the required clamping column terminal. When connecting, the control end is pressed to make the first clamping part move away from the second clamping part, and the column terminal is placed in the clamping cavity between the first clamping part and the second clamping part. The first clamping part and the second clamping part engage with the connecting terminal, so that the connecting wire can be firmly connected to the columnar terminal. At the same time, in the normal state, the end edges of the first clamping part and the second clamping part abut against each other, which makes the connecting wire also applicable to the sheet terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view of an embodiment of the utility model;

[0010] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0011] Figure 3 A side view of an embodiment of the present utility model;

[0012] Figure 4 This is a schematic diagram of a clamping columnar terminal according to an embodiment of the present invention. DETAILED DESCRIPTION

[0013] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0014] like Figures 1 to 4As shown, a lead-acid battery charging cable includes a first clamping member 1 and a second clamping member 2, wherein the first clamping member 1 is hinged to the second clamping member 2, and both the first clamping member 1 and the second clamping member 2 have a clamping end 3 and a control end 4, the clamping end 3 of the first clamping member 1 is angledly provided with a first clamping portion 11, and the clamping end 3 of the second clamping member 2 is angledly provided with a second clamping portion 21, and the first clamping portion 11, the first clamping member 1, the second clamping portion 21 and the second clamping member 2 are surrounded at the clamping end 3 to form a clamping cavity 10.

[0015] When connecting, press the control end 4 of the first clamping member 1 and the second clamping member 2 so that the first clamping portion 11 is away from the second clamping portion 21, and then place the columnar terminal 70 in the clamping cavity 10 between the first clamping portion 11 and the second clamping portion 21, wherein the diameter of the columnar terminal 70 is larger than the inner diameter of the clamping cavity 10; through the engagement of the first clamping portion 11 and the second clamping portion 21 with the columnar terminal 70, the connecting wire can be firmly connected to the columnar terminal 70.

[0016] In this embodiment, the first clamping member 1 and the second clamping member 2 are both stamped from sheet material to form a U-shaped structure with a bottom wall 20 and a side wall 30, which makes it easier and more convenient to manufacture the connecting line; an anti-slip protrusion 40 is provided on the end face of the side wall 30 away from the bottom wall 20; the anti-slip protrusion 40 is located on the control end, and a heat shrink tube 8 is provided on the control end 4 of the first clamping member 1 and the second clamping member 2. The frictional contact of the anti-slip protrusion 40 on the heat shrink tube 8 makes it difficult for the heat shrink tube 8 to fall off from the control end 4 of the first clamping member 1 and the second clamping member 2 during use, thereby preventing the user from being electrocuted.

[0017] In this embodiment, since the first clamping member 1 and the second clamping member 2 are both stamped from sheet material, during the stamping process, the first clamping member 1 is integrally formed with a first hinge portion 12 on both sides near the clamping end 3 in the vertical direction, and the second clamping member 2 is integrally formed with a second hinge portion 24 on both sides near the clamping end 3 in the vertical direction, wherein the first hinge portion 12 is located between the second hinge portion 24; a hinge through-hole 60 is correspondingly opened on the first hinge portion 12 and the second hinge portion 24, and the first clamping member 1 and the second clamping member 2 are hinged together through a pin shaft 6 passing through the hinge through-hole 60; a torsion spring 7 is sleeved on the pin shaft 6, and the two ends of the torsion spring 7 respectively abut against the inner sides of the control ends 4 of the first clamping member 1 and the second clamping member 2; through the torsion spring 7 abutting against the inner sides of the control ends 4 of the first clamping member 1 and the second clamping member 2 respectively, a relatively outward force is provided to the first clamping member 1 and the control end 4 of the first clamping member 1, so that there is a clamping force between the first clamping member 11 and the second clamping member 21.

[0018] In this embodiment, the control end 4 of the second clamping member is provided with a wiring portion 22, and a wire 9 is welded on the wiring portion 22. Fixed portions 23 are extended on both sides of the wiring portion 22, and the fixed portions 23 cover the wire 9 welded on the wiring portion 22; when welding the wire 9, the fixed portions 23 are first unfolded to both sides, and the wire is placed on the wiring portion 22, and then the fixed portions 23 on both sides of the wiring portion 22 are folded toward the middle so that the fixed portions 23 rest on the wire 9, and finally the wire 9 is welded so that the wire is welded to the fixed portion 23 and the wiring portion 22, thereby increasing the stable connection between the wire 9 and the second clamping member 2.

[0019] In this embodiment, a plug-in piece 5 is integrally stamped on the side wall 30 of the control end 4. The plug-in piece 5 includes a first plug-in piece 51 and a second plug-in piece 52. The first plug-in piece 51 is arranged on the first clamping member 1, and the second plug-in piece 52 is arranged on the second clamping member 2. By pressing the control end 4 of the first clamping member 1, the first plug-in piece 51 and the second plug-in piece 52 can be controlled to move closer or farther away. The cross-section of the first plug-in piece 51 and the second plug-in piece 52 is arc-shaped, and a plurality of anti-slip grooves 50 are provided on the surface of the plug-in piece 5; when the connecting wire is connected to the copper terminal, the first plug-in piece 51 is arranged on the first clamping member 1, and the second plug-in piece 52 is arranged on the second clamping member 2. A plug-in piece 51 and a second plug-in piece 52 are inserted into the copper terminal. Since the cross-section of the first plug-in piece 51 and the second plug-in piece 52 is arc-shaped, the first plug-in piece 51 and the second plug-in piece 52 can fit the inner surface of the copper terminal more closely. Since there are many types of copper terminals, the distance between the first plug-in piece 51 and the second plug-in piece 52 can be controlled to fit copper terminals of different specifications. At the same time, a plurality of anti-slip grooves 50 are provided on the surface of the first plug-in piece 51 and the second plug-in piece 52, which makes it difficult for the first plug-in piece 51 and the second plug-in piece 52 to slip out of the copper terminal.

[0020] In this embodiment, the control end 4 of the first clamping member 1 is bent toward the second clamping member 2 to form a pressing portion 13. When in use, the user applies pressure to the pressing portion 13 with one finger and then presses the control end 4 of the first clamping member 1 with another finger. Since the pressing portion 13 is flatter than the first clamping member 1, the user can apply force better.

Claims

1. A lead-acid battery charging cable, comprising a first clamping member (1) and a second clamping member (2), wherein the first clamping member (1) and the second clamping member (2) are hinged, and characterized in that: The first clamping member (1) and the second clamping member (2) both have a clamping end (3) and a control end (4); the clamping end (3) of the first clamping member (1) is provided with a first clamping portion (11) at an angle; the clamping end (3) of the second clamping member (2) is provided with a second clamping portion (21) at an angle; the first clamping portion (11), the first clamping member (1), the second clamping portion (21) and the second clamping member (2) are enclosed at the clamping end (3) to form a clamping cavity (10); The first clamping member (1) and the second clamping member (2) are both formed by punching a sheet material to form a U-shaped structure having a bottom wall (20) and a side wall (30), and an anti-slip protrusion (40) is provided on the end surface of the side wall (30) away from the bottom wall (20); the anti-slip protrusion (40) is located on the control end; A plug-in piece (5) is integrally stamped and formed on the side wall (30) of the control end (4); the plug-in piece (5) has an arc-shaped cross section, and a plurality of anti-slip grooves (50) are provided on the surface of the plug-in piece (5).

2. The lead-acid battery charging cable according to claim 1, characterized in that: The first clamping member (1) and the second clamping member (2) are hinged via a pin shaft (6), a torsion spring (7) is sleeved on the pin shaft (6), and two ends of the torsion spring (7) respectively abut against the inner sides of the control ends (4) of the first clamping member (1) and the second clamping member (2).

3. The lead-acid battery charging cable according to claim 2, characterized in that: A heat shrink tubing (8) is provided on the control ends (4) of the first clamping member (1) and the second clamping member (2); a wiring portion (22) is provided on the control end (4) of the second clamping member (2); a wire (9) is welded to the wiring portion (22); fixed portions (23) are extended on both sides of the wiring portion (22); and the fixed portions (23) cover the wire (9) welded to the wiring portion (22).

4. The lead-acid battery charging cable according to claim 1, characterized in that: The plug-in piece (5) comprises a first plug-in piece (51) and a second plug-in piece (52). The first plug-in piece (51) is arranged on the first clamping piece (1), and the second plug-in piece (52) is arranged on the second clamping piece (2). By pressing the control end (4) of the first clamping piece (1), the first plug-in piece (51) and the second plug-in piece (52) are controlled to move closer to or farther away from each other.

5. The lead-acid battery charging cable according to claim 4, characterized in that: The first clamping member (1) is provided with first hinged portions (12) on both sides close to the clamping end (3) in the vertical direction, and the second clamping member (2) is provided with second hinged portions (24) on both sides close to the clamping end (3) in the vertical direction, with the first hinged portion (12) being located between the second hinged portions (24).

6. The lead-acid battery charging cable according to claim 5, characterized in that: The first hinge portion (12) and the second hinge portion (24) are correspondingly provided with hinge through holes (60), and the pin shaft (6) passes through the hinge through holes (60), so that the first clamping member (1) and the second clamping member (2) are hinged.

7. The lead-acid battery charging cable according to claim 1, characterized in that: The control end (4) of the first clamping member (1) is partially bent toward the second clamping member (2) to form a pressing portion (13).

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