CN215266593U

CN215266593U - Wiring terminal for lead-acid storage battery

Info

Publication number: CN215266593U
Application number: CN202120907469.9U
Authority: CN
Inventors: 赵青; 朱志允; 闫大龙
Original assignee: Chaowei Power Group Co Ltd
Current assignee: Chaowei Power Group Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-21
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to a battery technical field discloses a binding post for lead acid battery, including lead sheath and copper terminal, lead sheath and copper terminal adopt connecting piece fixed connection, the copper terminal is equipped with the screw hole, the lead sheath surface is equipped with the step. The hourglass-shaped through hole structure in the lead sleeve is beneficial to sleeving and fixing the positive and negative electrode lead terminals of the battery in the lead sleeve, and meanwhile, the larger opening at the top end can effectively increase the welding degree of welding lead and improve the welding quality of the terminals; the design of the steps outside the lead sleeve increases the upward climbing path of acid liquid inside the battery, reduces the risk of battery failure caused by climbing and leakage of the acid liquid inside the battery, and increases the bonding strength of the plastic material of the battery cover and the connecting terminal by the groove on the side surface of the connecting piece; when the wiring terminal is used, the load wiring bolt can be rotated into a threaded hole of the copper terminal and is not easy to loosen.

Description

Wiring terminal for lead-acid storage battery

Technical Field

The utility model relates to a battery technical field especially relates to a binding post for lead acid battery.

Background

At present, the low-speed electric automobile is developed very rapidly, the lead-acid storage battery is basically used for the storage battery, the storage battery for the low-speed electric automobile is sold in the busy season from autumn to spring, the storage battery manufacturers have large goods output during the period, the production efficiency cannot keep up with the sale, and the situation of short supply and short demand occurs, so that technicians put more energy and technologies into the production process and the product structure of the storage battery to improve the production efficiency.

Grant No. CN201812875U, chinese patent publication 2011, 04, month 27 discloses a terminal block for lead-acid storage battery, which includes two output poles fixed on the lead-acid storage battery body, an insert is fixed on the top end of each output pole, and the insert is provided with a threaded hole. The wiring terminal for the lead-acid storage battery is good in connection reliability with a load wiring and not easy to loosen.

However, the base of the connecting terminal in the patent is easy to cause loosening of the positive and negative lead terminals outside the battery due to improper welding (too high temperature and too long time in the welding process), so that the phenomena of acid liquid creeping and liquid leakage occur inside the battery, the performance of the battery is reduced, or the battery is accelerated to lose efficacy.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a binding post for lead acid battery, through the simple design to lead cover and copper terminal structure, can effectively reduce the inside acidizing fluid of battery and climb liquid, the weeping problem, increase battery cover plastics material and binding post's bonding strength, binding post constitutes wholly with the battery cover through moulding plastics, do not have this process of binding post of placing in battery assembling process, directly carry out binding post welding assembly, improve battery assembly production efficiency greatly, during the use, load wiring bolt can change over to the screwed hole of copper terminal, be difficult for becoming flexible.

The utility model discloses a concrete technical scheme does: the utility model provides a binding post for lead acid battery, includes lead sheath and copper terminal, lead sheath and copper terminal adopt connecting piece fixed connection, the copper terminal is equipped with the screw hole, the lead sheath surface is equipped with the step.

The wiring terminal and the battery cover made of plastic materials are integrally formed in an injection molding mode, when the battery cover is used, the lead sleeve of the wiring terminal is sleeved at the lead terminal of the lead-acid storage battery, the battery cover is covered, the step on the outer surface of the lead sleeve increases the upward climbing path of acid liquid in the storage battery, the risk of leakage of the storage battery terminal is reduced, the load wiring bolt can be turned into a threaded hole of the copper terminal, and therefore charging or power utilization equipment is tightly connected with the copper terminal and is not prone to loosening.

Preferably, an axial center line of the lead sleeve and an axial center line of the copper terminal are parallel to each other.

Preferably, a through hole is arranged in the lead sleeve.

Preferably, the through hole is an hourglass-shaped through hole.

The hourglass-shaped through hole structure is characterized in that the upper opening and the lower opening are larger than the middle aperture, the bottom opening of the through hole is larger, the battery lead terminal can be conveniently sleeved into the lead sleeve smoothly, the diameter of the middle part of the through hole is reduced to increase the matching between the lead sleeve and the lead terminal, the lead sleeve can effectively fix the position of the lead terminal, the opening at the top of the through hole is enlarged to effectively increase the welding degree of welding lead, and the welding quality of a wiring terminal and the lead terminal is improved.

Preferably, the number of the steps is 3-5.

When the battery lead terminal and the terminal adhesive have gaps to cause acid leakage of the terminal, the number of the steps is too small or not, and the risk of corrosion of the acid leakage to the battery environment and the risk of corrosion are directly caused; the number of the steps is too many, the using amount of lead materials in the wiring terminal is increased, and the production cost is increased.

Preferably, grooves are formed in two sides of the connecting piece.

The existence of the groove is beneficial to increasing the bonding strength of the plastic material of the battery cover and the wiring terminal when the wiring terminal is integrally formed by injection molding of the battery cover.

Preferably, the connecting piece is made of lead.

Preferably, the connecting terminal is of an integrally formed structure.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the hourglass-shaped through hole structure in the lead sleeve is beneficial to sleeving and fixing the positive and negative lead terminals of the battery in the lead sleeve, and meanwhile, the opening at the top end is large, so that the welding degree of welding lead can be effectively increased, and the welding quality of the terminals is improved;

(2) the design of the steps outside the lead sleeve increases the upward climbing path of acid liquid inside the battery, reduces the risk of battery failure caused by climbing and leakage of the acid liquid inside the battery, and increases the bonding strength of the plastic material of the battery cover and the connecting terminal by the groove on the side surface of the connecting piece;

(3) when the wiring terminal is used, the load wiring bolt can be rotated into a threaded hole of the copper terminal and is not easy to loosen.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention.

The reference signs are: the lead sleeve comprises a lead sleeve 1, a step 11, a connecting piece 2, a groove 21, a copper terminal 3 and a threaded hole 31.

Detailed Description

The present invention will be further described with reference to the following examples. The devices, connections, and methods referred to in this disclosure are those known in the art, unless otherwise indicated.

Example 1

As shown in fig. 1 and 2: the utility model provides a lead acid battery binding post, mainly include lead sheathing 1, connecting piece 2, copper terminal 3, wherein lead sheathing 1 and copper terminal 3 pass through connecting piece 2 fixed connection, connecting piece 2 adopts plumbous material, possess stronger corrosion resistance, length is 1-3cm, under the circumstances of guaranteeing copper terminal 3 and lead sheathing 1 joint strength and lead sheathing 1 and the plumbous terminal welding strength of positive negative pole of battery, the size that reduces connecting piece 2 can reduce plumbous quantity, lighten product weight and reduce the cost of generation, the both sides of connecting piece 2 are equipped with recess 21, when increasing the inside acidizing fluid of battery and climbing upwards the route, also increased battery cover plastics material and binding post's bonding strength. The axial center line of the lead sleeve 1 and the axial center line of the copper terminal 3 are parallel to each other. The external surface of the lead sleeve 1 is provided with 4 steps, so that the upward climbing path of acid liquid in the storage battery is increased, and the risk of leakage of the storage battery terminal is reduced. The lead sleeve 1 is internally provided with the hourglass-shaped through hole, during installation, the through hole is aligned to the lead terminals of the anode and the cathode of the battery, the bottom opening of the through hole is large, the lead terminal can be conveniently and smoothly sleeved into the lead sleeve 1, the diameter of the middle part of the through hole is reduced to increase the matching between the lead sleeve 1 and the lead terminal, the lead sleeve 1 can effectively fix the position of the lead terminal, the opening at the top of the through hole is enlarged to effectively increase the welding degree of welding lead, and the welding quality of a wiring terminal and the lead terminal is improved. The wiring terminal is of an integral structure, is formed by adopting an integral die-casting process, then the positioning hole is processed into the threaded hole 31, the lead sleeve 1 and the lead connecting piece 2 have stronger corrosion resistance, can effectively avoid being oxidized and corroded by acid liquor, and the copper terminal is low in resistivity and high in mechanical strength and shows good conductivity when being connected with a load. During the use, load binding bolt can change over into the screw hole 31 of copper terminal, charges or consequently difficult not hard up with copper terminal 3 zonulae occludens of consumer, and the reliability is better.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent structure transform of doing to above embodiment the utility model discloses technical scheme's protection scope.

Claims

1. The utility model provides a binding post for lead acid battery which characterized in that: including lead sleeve (1) and copper terminal (3), lead sleeve and copper terminal adopt connecting piece (2) fixed connection, copper terminal inside is equipped with screw hole (31), the lead sleeve surface is equipped with step (11).

2. A terminal block for a lead-acid battery as claimed in claim 1, wherein the axial centerline of said lead sheath and the axial centerline of said copper terminal are parallel to each other.

3. A terminal block for a lead-acid battery as claimed in claim 1, wherein a through hole is provided in said lead case.

4. The lead-acid battery terminal according to claim 3, wherein the through-hole is an hourglass-shaped through-hole.

5. The lead-acid battery terminal as claimed in claim 1, wherein the number of steps is 3-5.

6. A terminal block for a lead-acid battery according to claim 1, characterized in that said connecting member is provided with grooves (21) on both sides.

7. A terminal block for a lead-acid battery as claimed in claim 6, wherein the connector is made of lead.

8. The lead-acid battery terminal as claimed in claim 1, wherein the terminal is of an integrally formed structure.