CN214313458U

CN214313458U - Copper core terminal of lead-acid storage battery

Info

Publication number: CN214313458U
Application number: CN202120233824.9U
Authority: CN
Inventors: 吴明耀; 熊双双; 蒋浩琪
Original assignee: Jiangxi Jingjiu Power Technology Co ltd
Current assignee: Jiangxi Jingjiu Power Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-28
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a lead-acid storage battery copper core terminal, which comprises a top cap part, a transition section and a copper core rod which are sequentially connected from top to bottom, wherein the top cap part, the transition section and the copper core rod are cylinders, and the inner diameter of the top cap part, the transition section and the copper core rod is that the top cap part is larger than the transition section and the copper core rod is larger than the transition section; the outer wall of the copper core rod is provided with a plurality of circles of grooves which are uniformly distributed at intervals up and down, the grooves are surrounded on the peripheral surface of the copper core rod, annular bulges are arranged on the outer wall of the copper core rod between every two grooves, and the bulges are surrounded on the peripheral surface of the copper core rod. The utility model discloses set up recess and arch on copper core pole surface for copper core pole outer wall surface forms many stair structure, increases copper core surface area and improves terminal torsion, and the setting of recess can prevent that the acidizing fluid in the battery from spilling over along copper core pole surface reflux simultaneously.

Description

Copper core terminal of lead-acid storage battery

Technical Field

The utility model belongs to the technical field of lead acid battery, concretely relates to lead acid battery copper core terminal.

Background

For convenient connection, the output end of the lead-acid storage battery for the electric road vehicle is a lead-embedded copper core threaded terminal, the copper core terminal connecting thread needs to have certain torsion resistance and high-current conductivity, and the existing copper core terminal is low in torsion, so that the cast-welded copper core and lead are not firmly combined.

SUMMERY OF THE UTILITY MODEL

To the not enough and difficult problem among the prior art, the utility model aims at providing a lead acid battery copper core terminal.

The utility model discloses a following technical scheme realizes:

a lead-acid storage battery copper core terminal comprises a top cap part, a transition section and a copper core rod which are sequentially connected from top to bottom, wherein the top cap part, the transition section and the copper core rod are cylinders, and the inner diameter size of the top cap part, the transition section and the copper core rod is larger than the transition section larger than the copper core rod; the outer wall of the copper core rod is provided with a plurality of circles of grooves which are uniformly distributed at intervals up and down, the grooves are surrounded on the peripheral surface of the copper core rod, annular bulges are arranged on the outer wall of the copper core rod between every two grooves, and the bulges are surrounded on the peripheral surface of the copper core rod.

Furthermore, the concave cavity of the groove is in a combined shape of a trapezoid and an arc, the height of the groove is contracted from outside to inside, and the arc is a concave surface on the outer wall of the copper core rod.

Further, the outer side of the protrusion is arc-shaped.

Further, the convex surface has a ridge.

Further, the convex edges are one or more combined convex lines of linear, rhombic, elliptic or circular shapes.

Furthermore, a cross-shaped groove is formed in the bottom of the copper core rod, the center of the cross-shaped groove corresponds to the circle center of the bottom of the copper core rod, and the cross-shaped groove penetrates through the bottom of the copper core rod in the front-back direction and the left-right direction.

Compared with the prior art, the utility model discloses beneficial effect includes:

(1) the utility model discloses set up recess and arch on copper core pole surface for copper core pole outer wall surface forms many stair structure, increases copper core surface area and improves terminal torsion, and the setting of recess can prevent that the acidizing fluid in the battery from spilling over along copper core pole surface reflux simultaneously.

(2) The utility model discloses set up the cross recess in copper core pole bottom for copper core terminal installation is inseparabler firm when sealed.

(3) The utility model discloses arch, recess and copper core pole form circular arc, recess, plane alternately, further increase copper core surface area and improve terminal torsion.

(4) The utility model discloses protruding surface has the abrupt edge, plays aspects effects such as antiskid, bending resistance.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention.

Fig. 3 is a schematic bottom view of the present invention.

Illustration of the drawings: 1-top cap portion, 2-transition section, 3-copper core bar, 4-groove, 5-cross groove, 6-protrusion in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on that shown in the drawings, only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, integrally connected; can be mechanical connection and electrical connection; may be directly connected, indirectly connected through intervening agents, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood to be specific to those skilled in the art.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the lead-acid storage battery copper core terminal comprises a top cap part 1, a transition section 2 and a copper core rod 3 which are sequentially connected from top to bottom, wherein the top cap part 1, the transition section 2 and the copper core rod 3 are all cylinders, the inner diameter of the top cap part 1 > the transition section 2 > the copper core rod 3, and through holes (not shown) are arranged in the copper core terminal. The three sets of cylindrical structures with different inner diameters enable the copper core terminal to form a stepped structure.

The main part connecting portion of copper core terminal is copper core bar 3, the utility model discloses optimize it, copper core bar 3's outer wall sets up a plurality of rings interval distribution's about even recess 4, recess 4 encircles on 3 peripheral surfaces of copper core bar, set up annular arch 6 on 3 outer walls of copper core bar between two liang of recesses 4, arch 6 encircles on 3 peripheral surfaces of copper core bar, recess 4 makes 3 outer wall surfaces of copper core bar form many step structure with arch 6, increase copper core surface area and improve terminal torsion, recess 4's setting can prevent that the acidizing fluid in the battery from spilling over along 3 surface backflow of copper core bar simultaneously.

As shown in fig. 2, the concave cavity of the groove 4 is in a combined shape of trapezoid and arc, the height of the groove 4 is contracted from outside to inside, and the arc is a concave surface on the outer wall of the copper core rod 3, so that the surface area of the copper core is further increased.

The outer side of the bulge 6 is arc-shaped, and the bulge 6, the groove 4 and the copper core rod 3 form an arc, a groove and a plane which are crossed, so that the surface area of the copper core is further increased, and the terminal torsion is improved.

The surface of the bulge 6 is provided with a ridge which is one or more combined raised lines of a line shape, a diamond shape, an oval shape or a round shape, and the effects of skid resistance, bending resistance and the like are achieved.

As shown in fig. 3, the bottom of the copper core rod 3 is provided with a cross groove 5, the center of the cross groove 5 corresponds to the center of the circle at the bottom of the copper core rod 3 (namely, the cross groove 5 is arranged in the center), the cross groove 5 runs through the bottom of the copper core rod 3 in the front and back direction and in the left and right direction, and the cross groove 5 is arranged to enable the copper core terminal to be more tightly and firmly installed and sealed.

The top of the top cap part 1 is provided with a chamfer, so that the use is safer.

The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a lead acid battery copper core terminal which characterized in that: the copper core rod structure comprises a top cap part (1), a transition section (2) and a copper core rod (3) which are sequentially connected from top to bottom, wherein the top cap part (1), the transition section (2) and the copper core rod (3) are cylinders, and the inner diameter of the top cap part (1), the transition section (2) and the copper core rod (3) are larger than that of the transition section (2); the outer wall of the copper core rod (3) is provided with a plurality of circles of grooves (4) which are uniformly distributed at intervals up and down, the grooves (4) are surrounded on the peripheral surface of the copper core rod (3), annular protrusions (6) are arranged on the outer wall of the copper core rod (3) between every two grooves (4), and the protrusions (6) are surrounded on the peripheral surface of the copper core rod (3).

2. The lead-acid battery copper core terminal of claim 1, characterized in that: the concave cavity of the groove (4) is in a combined shape of a trapezoid and an arc, the height of the groove (4) is contracted from outside to inside, and the arc is a concave surface on the outer wall of the copper core rod (3).

3. The lead-acid battery copper core terminal of claim 1, characterized in that: the outer side of the bulge (6) is arc-shaped.

4. The lead-acid battery copper core terminal of claim 1, characterized in that: the surface of the protrusion (6) is provided with a convex edge.

5. The lead-acid battery copper core terminal of claim 4, characterized in that: the convex edges are one or more combined convex lines of linear, rhombic, elliptic or circular shapes.

6. The lead-acid battery copper core terminal of claim 1, characterized in that: the bottom of the copper core rod (3) is provided with a cross groove (5), the center of the cross groove (5) corresponds to the circle center of the bottom of the copper core rod (3), and the cross groove (5) penetrates through the bottom of the copper core rod (3) in the front-back direction and the left-right direction.