CN201352669Y - battery connector - Google Patents

Abstract

The utility model discloses a battery connecting piece, this battery connecting piece include a platelike connecting strip and one or two welding pieces, set up the welding process hole with the same quantity of welding piece on the connecting strip, the welding piece is fixed corresponding welding process hole department is fitted to the lid on the connecting strip. The utility model discloses the battery connecting piece can exert respective advantage through the collocation of welding piece and connecting strip to realize that energy loss is little, safety, low cost and easy welding.

Description

battery connector

technical field

The utility model relates to a connecting piece, in particular to a battery connecting piece.

Background technique

Currently, batteries are used more and more in daily life, such as automobiles, electric vehicles and portable lighting. In order to meet the voltage and power output requirements of electric facilities, several to dozens of battery cells are usually connected in series or in parallel to form a battery pack, so as to provide power for electric facilities. The electrical connection between the two battery cells is realized by a battery connector. A current battery connector is stamped from a metal nickel sheet and is roughly in the shape of a strip, and its two ends are respectively welded to the two batteries to achieve electrical connection.

However, the resistivity of metallic nickel is large, so that during the discharge process of the battery, the energy loss is relatively large, and it is easy to generate heat and is unsafe. A current solution is to increase the thickness of the connecting part, thereby reducing the resistance value of the connecting part. However, this method will result in high cost and difficult welding.

Utility model content

The main purpose of this utility model is to provide a battery connector for the defects of the above-mentioned background technology, which has low energy loss, safety, low cost and easy welding.

In order to achieve the above object, the utility model battery connector includes a plate-shaped connecting strip and one or two welding pieces, the connecting strip is provided with the same number of welding process holes as the welding piece, and the welding piece is fixed on the connecting strip And cover the corresponding welding process hole.

In summary, since the battery connector of the present invention includes a connecting strip and a welding piece, the welding piece can be made of a metal material that is easy to weld, and the connecting strip is made of a metal material with good electrical conductivity, so that the two materials can be used together to play their respective roles. Advantages, so as to achieve low energy loss, safety, low cost and easy welding.

Description of drawings

Fig. 1 is a perspective view of the first embodiment of the battery connector of the present invention.

FIG. 2 is an exploded perspective view of the battery connector shown in FIG. 1 .

Fig. 3 is a perspective view of a second embodiment of the battery connector of the present invention.

FIG. 4 is an exploded perspective view of the battery connector shown in FIG. 3 .

FIG. 5 is a perspective view of the battery connector shown in FIG. 1 and FIG. 3 when applied to a power battery module.

The reference numerals of each element in the figure are explained as follows:

Battery connector 100, 200 The first connecting strip 11

Second connection bar 21 Substrate 111, 211

Welding process holes 112, 212 Fixed columns 113, 213

Holding hole 114, 214 The first welding piece 12

Substrate 121, 131 Welding pad 122, 132

Through hole 123, 133 Fixing hole 124, 134

The second welding piece 13 Signal test strip 135

Fixing hole 215 Power battery module 300

Battery 31 Fixing strip 32

Detailed ways

In order to illustrate the technical content, structural features, purpose and effect of the present utility model in detail, the following examples are given to illustrate in detail with accompanying drawings.

Please refer to FIG. 1 , which is a perspective view of a first embodiment of a battery connector 100 of the present invention. The battery connector 100 includes a first connecting bar 11 , a first welding piece 12 and a second welding piece 13 . Both the first welding sheet 12 and the second welding sheet 13 belong to one type of welding sheet.

Please refer to Fig. 1 and Fig. 2, in the present embodiment, described first connecting bar 11 is made by punching metal copper sheet with good electrical conductivity, and it has a matrix 111 of rectangular plate shape, and the left and right sides of matrix 111 A circular welding process hole 112 is provided at both ends, and the welding process hole 112 runs through the upper surface and the lower surface of the base body 111; the two ends of the base body 111 are located around the welding process hole 112 and are punched upward to form a number of circular fixing columns 113. Two holding holes 114 are defined in the middle of the base body 111 , and the holding holes 114 pass through the upper surface and the lower surface of the base body 111 . When the battery connector 100 is soldered to the battery, the holding hole 114 can fix a related soldering device (not shown in the figure), so as to facilitate the soldering operation.

Please continue to refer to Fig. 1 and Fig. 2, in the present embodiment, the first welding piece 12 and the second welding piece 13 are all stamped by metal nickel sheet, and the first welding piece 12 has a square plate shape The base plate 121, the middle part of the base plate 121 punches out a bottom circular groove (not labeled in the figure), so that the top wall of the groove forms a circular welding pad 122, and the welding pad 122 is connected to the welding process hole 112 Corresponding. An elongated through hole 123 is defined in the middle of the soldering pad 122 , and the through hole 123 penetrates the upper surface and the lower surface of the soldering pad 122 . When the battery connecting member 100 is welded to the battery, due to the obstruction of the through hole 123 , the flow path of the current can be changed, so as to facilitate the welding operation and improve the welding efficiency. The base plate 121 defines a plurality of fixing holes 124 corresponding to the fixing posts 113 , and the fixing holes 124 penetrate through the upper surface and the lower surface of the base plate 121 .

The structure of the second soldering piece 13 is similar to that of the first soldering piece 12 , both of which have a base plate 131 . The base plate 131 is provided with a soldering pad 132 and a fixing hole 134 . The soldering pad 132 is provided with a through hole 133 . The difference is that a signal test strip 135 extends backwards and then upwards from the middle of the rear surface of the substrate 131 of the second soldering piece 113 .

When assembling the battery connector 100 of the present utility model, the first welding piece 12 and the second welding piece 13 are respectively fixed on the two ends of the first connecting bar 11, and the welding plate 123 (133) is covered by the welding process hole 112. , the fixing column 113 is inserted into the corresponding fixing hole 124 (134), so as to realize riveting and fixing.

Please refer to FIG. 3 and FIG. 4 , which are respectively a perspective view and an exploded perspective view of a second embodiment of the battery connector of the present invention. The battery connector 200 has a second connecting bar 21 and a second welding piece 13; the second connecting bar 21 is stamped and made of a metal copper sheet with good electrical conductivity, and has a base 211, and one end of the base 211 is provided with a welding The process hole 212 and stamping form a number of fixing columns 213 , and the middle part of the base 211 defines two fixing holes 214 . The other end of the second connecting bar 21 defines two fastening holes 215 .

Please refer to Fig. 5, which is a perspective view of the battery connector 100 (200) of the present invention when applied to a power battery module 300. The power battery module 300 includes a number of series and parallel batteries 31 and fixing bars for fixing the battery module 300 32. The welding pad 122 ( 132 ) of the connector 100 is connected to the positive or negative poles of the two batteries 31 by welding, so as to realize the electrical connection of the two batteries 31 . The battery connector 200 is used to electrically connect the battery 31 at the edge of the power battery module 300 to the fixing bar 32, the second welding piece 13 is welded to the positive or negative pole of the battery 31, and the fixing hole 215 is fixed on the power On the fixing bar 32 of the battery module 300 , so as to realize electrical connection and fixing.

To sum up, since the battery connector 100 (200) of the present utility model is made of metal nickel sheets that are easy to weld because the first welding piece 12 and the second welding piece 13 are made, the first connecting piece 11 and the second welding piece The connecting strip 21 is stamped and made of metal copper sheet with good electrical conductivity. The heat generated when the current flows through the metal copper is less than that when the current flows through the metal nickel. Safe, low cost and easy welding operation.

Although the foregoing description has disclosed a preferred embodiment of the invention, it must be understood that various additions, modifications and substitutions are possible in the preferred embodiment of the invention without departing from the invention as defined in the appended claims. The spirit and scope of the utility model principle. Those skilled in the art will appreciate that the invention may employ many modifications in form, structure, arrangement, proportion, material, element and assembly. For example, the first welding strip 12 is provided with a signal test strip or the connection mode between the first welding strip 12 and the second welding strip 13 and the first connecting strip 11 is changed to other connection modes or the battery connector 100 (200) and the battery 31 Changes in welding methods and so on. Therefore, the embodiments and all viewpoints disclosed herein should be regarded as illustrating the utility model rather than limiting the utility model. The scope of the present invention should be governed by the claims, including their legal equivalents, and not limited by the foregoing description.

Claims (6)

1. battery connector is characterized in that: comprise tabular intercell connector and one or two bonding pad, offer the welding process hole with the bonding pad equal number on the intercell connector, bonding pad is fixed on the described intercell connector and is covered on corresponding welding process hole place.

2. battery connector according to claim 1 is characterized in that: described intercell connector all offers a welding process hole in the place, two ends; Bonding pad includes one first bonding pad and one second bonding pad that is covered on a welding process hole place respectively, and first bonding pad and second bonding pad all have a substrate, are extended with a signal testing bar on the substrate of second bonding pad.

3. battery connector according to claim 2 is characterized in that: described first bonding pad and second bonding pad are fixed on the intercell connector by the riveted joint mode.

4. battery connector according to claim 2 is characterized in that: all be formed with a welded disc to a side projection on the substrate of described first bonding pad and second bonding pad.

5. battery connector according to claim 1 is characterized in that: described welded disc offers a through hole.

6. battery connector according to claim 1 is characterized in that: described intercell connector offers a welding process hole in an end place, offers two coupling holes in other end place; Bonding pad only has second bonding pad that is covered on this welding process hole place, and this second bonding pad has a substrate, is extended with a signal testing bar on this substrate.

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