CN2480993Y

CN2480993Y - Double-body terminal for accumulator

Info

Publication number: CN2480993Y
Application number: CN 01226948
Authority: CN
Inventors: 胡钊林
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-05
Filing date: 2001-06-05
Publication date: 2002-03-06
Anticipated expiration: 2011-06-05

Abstract

The utility model discloses a terminal for an accumulator, which comprises an outer cone body and an inner cone hole, wherein the axes of the outer cone body and the axes of the inner cone hole are separated as two parallel axes. The utility model overcomes disadvantages of the prior art such as the difficult fusion welding between the inner cone hole and a terminal post with unsatisfactory fusion welding quality, small fusion welding area and big resistance value, providing good weldability between the terminal post led out form the pole group of the accumulator and the inner cone hole and good fit between the outer cone body and the cone ring of an electric appliance, and then reducing heating of the electric resistance and the acid leakage occurred at the joint of the terminal of an accumulator and a battery cover caused by heating, and solving the technical difficulties in casting of the terminal of an accumulator, and in welding between the terminal and the terminal post.

Description

The catamaran type accumulator terminal

The utility model relates to a kind of accumulator terminal, and especially a kind of heavy-current discharge that is used for works the catamaran type lead accumulator terminal of employing.

The terminal of starting lead battery is integral type at present, terminal Outer Taper axis that is connected with electrical appliance (external circuit) and the internal taper hole axis that is connected with battery pack (interior circuit) that is storage battery is (Fig. 1) that overlaps, because taper hole is long, internal taper hole and pole melting welding operating difficulties, and often do not reach satisfied fusion welding quality requirement, the melting welding face of making is little, and resistance value is bigger.

The development of modern technologies, the raising of battery discharge rate, big discharging current requires to connect the pole diameter and increases, and the Outer Taper diameter standardization of terminal has the fixed dimension requirement, therefore forms the wall thickness attenuation between Outer Taper and the internal taper hole, the casting difficulty, outer cone surface size precision and fineness are poor, and above-mentioned 2 are all caused and connect resistance value and increase, and accumulator terminal is overheated during heavy-current discharge simultaneously jeopardizes again that sealing makes battery leak acid between terminal and battery cover.

The purpose of this utility model is a kind of simple in structure, convenient, high, safe and reliable catamaran type accumulator terminal of precision of casting of design, and it has overcome the shortcoming that prior art exists.

The purpose of this utility model is achieved in that it is made up of Outer Taper and internal taper hole, and described Outer Taper axis and internal taper hole axis are separated into the two-parallel axis line.

The described internal taper hole outside is provided with circular groove, internal taper hole and the welding of battery pack pole.

Described Outer Taper and internal taper hole integrally casting form, and Outer Taper is cast into entity, and described Outer Taper is taper and stud-shape,

Because the utility model compared with prior art has following advantage owing to adopted said structure:

1. terminal (particularly tapered segment) casting manufacturability is good, can obtain size accurately, the normal cone of any surface finish, production efficiency and product quality are improved greatly.

2. the technology for welding electrode pile of terminal and battery electrode group is good, and solder side increases, and has improved welding quality, improves work efficiency.

3. electrical appliance connects tapered sleeve and the driving fit of battery circular cone terminal matching surface, and the minimizing contact resistance is with the heat producing losses and be connected reliable.

4. the pole solder side of terminal and battery electrode group is big, resistance is little, big electric current by the time heating little, reduced the heat producing losses.

5. avoided causing battery terminal partly to leak acid, made the safe and reliable work of battery energy owing to the terminal heating causes the loosening of terminal and battery cover coupling part.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the accumulator terminal structural representation of prior art;

Fig. 2 is embodiment 1 structural representation of the present utility model;

Fig. 3 is user mode figure of the present utility model;

Fig. 4 is embodiment 2 structural representations of the present utility model;

Embodiment 3 structural representations of the present utility model on Fig. 5.

Among the figure: 1. Outer Taper; 2. internal taper hole; 3. battery cover; 4. pole; 5. utmost point group.

During manufacturing with the Outer Taper 1 of traditional accumulator terminal and the coaxial configuration of internal taper hole 2 axis of rotation, the axis of rotation that is transformed into Outer Taper 1 separates and parallel structure with the axis of rotation of internal taper hole 2, but integrally casting also can make Outer Taper 1 make solid construction, make the length of internal taper hole 2 shorten dramatically, its diameter also can strengthen as required.Adopt said structure because the length of internal taper hole 2 shortens dramatically, diameter can enlarge according to the needs of heavy-current discharge again, be not subjected to fixedly Outer Taper 1 size restrictions, can realize the welding good with pole 4, resistance value is reduced, and Outer Taper 1 can be made into entity, and its castability is good, can obtain accurate, the highly polished Outer Taper of size 1 surface, reduce external circuit and connect resistance.Be provided with circular groove is used for being connected sealing with plastic battery lid 3 in internal taper hole 2 outsides.

The utility model generally is used for lead accumulator, especially the terminal structure of heavy-current discharge starting battery, said structure of the present utility model, the pole 4 that utmost point group 5 is drawn has the good fit of good welds and Outer Taper 1 and electrical appliance conical ring with internal taper hole 2, and then the leakage acid phenomenon that reduces resistance heating and accumulator terminal and battery cover 3 junctions are occurred, and solved the technology difficult problem of accumulator terminal casting and terminal and pole 4 welding owing to generating heat.

Outer Taper 1 of the present utility model can be made taper (Fig. 4) or stud-shape (Fig. 5) as required, and also available taper connection is connected multiple connected modes such as mixed structure with double-screw bolt.

Claims

1. a catamaran type accumulator terminal is made up of Outer Taper (1) and internal taper hole (2), it is characterized in that: described Outer Taper (1) axis and internal taper hole (2) axis are separated into the two-parallel axis line.

2. catamaran type accumulator terminal according to claim 1 is characterized in that: described internal taper hole (2) outside is provided with circular groove, internal taper hole (2) and battery pack pole (4) welding.

3. catamaran type accumulator terminal according to claim 1 is characterized in that: described Outer Taper (1) and internal taper hole (2) integrally casting form, and Outer Taper (1) is cast into entity, and described Outer Taper (1) is taper and stud-shape,