CN214898940U

CN214898940U - Connector terminal, connector and battery

Info

Publication number: CN214898940U
Application number: CN202023343315.6U
Authority: CN
Inventors: 徐建国; 江宜建
Original assignee: Icon Energy System Shenzhen co ltd
Current assignee: Icon Energy System Shenzhen co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-26
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a connector terminal, a connector and a battery, wherein the terminal comprises a supporting part, a spring sheet formed by extending from the upper end of the supporting part and a soldering tin part formed by extending from the lower end of the supporting part; one end of a soldering tin surface of the soldering tin part extends to form a first pin, and the other end of the soldering tin surface extends to form a second pin and a third pin; the soldering tin surface and the first pin are bent to form a first bending part. Because the pin has a bending radius, the connector terminal is ensured not to be in insufficient soldering. The effective bending radius can prevent the terminal corner from generating fracture, and can greatly improve the plugging service life of the connector terminal. Meanwhile, the effective adhesion of the soldering tin surface and the printed circuit board during reflow soldering can be effectively solved, and the reflow soldering effect is effectively ensured. Can satisfy the discharge demand of little power battery such as dust catcher electric tool, make the output of discharging between battery and host computer more stable, this terminal can realize going on simultaneously with the SMT paster, easily realizes the production automation, improves the production efficiency of product greatly.

Description

Connector terminal, connector and battery

Technical Field

The utility model belongs to battery connector field, in particular to connector terminal, connector and battery.

Background

The connector is a basic and indispensable electrical component widely used in small power batteries such as electric tools. Because the discharge current of a small power battery pack is large, when a user can disassemble and quickly change the battery, the output of the battery pack is required to meet a quick-plug structure, but the pin 1 of the terminal of the traditional connector is bent to 90 degrees, as shown in fig. 1, the corner of the terminal is interfered with the edge of a jack, when the terminal is welded with a protection board, the bottom surface of the terminal cannot be in good contact with the surface of a Printed Circuit Board (PCB) after the terminal is soldered with the protection board, so that the connector terminal is floated and high, the large-current discharge of the battery is influenced, the small bending angle can also cause the bending part of the connector terminal to generate fracture, the anti-fatigue effect is reduced, the connector terminal is easy to fracture after being plugged for many times, and the reliability is reduced.

SUMMERY OF THE UTILITY MODEL

For overcoming the battery connector terminal department of bending that exists among the prior art and producing the fracture, the antifatigue effect reduces, and the plug is easy fracture after many times, the problem that the reliability reduces, the utility model provides a connector terminal, connector and battery.

The utility model discloses a concrete scheme does:

a connector terminal comprises a supporting part, a spring sheet formed by extending from the upper end of the supporting part, and a soldering tin part formed by extending from the lower end of the supporting part; one end of a soldering tin surface of the soldering tin part extends to form a first pin, and the other end of the soldering tin surface extends to form a second pin and a third pin; the soldering tin surface and the first pin are bent to form a first bending part.

Furthermore, the other end of the soldering tin surface is bent to form a first connecting part, one side of the first connecting part is bent to form a second pin, and the other side of the first connecting part opposite to the first connecting part is bent to form a third pin.

Further, the shrapnel is a single shrapnel.

Furthermore, the single elastic sheet comprises a first elastic sheet body and a first elastic contact finger, and the first elastic contact finger is arranged at the front end of the first elastic sheet body.

Furthermore, the second pin and the third pin are formed by extending the solder surface perpendicular to the two side edges of the first pin respectively.

Further, the shell fragment is two shell fragments.

Furthermore, the elastic sheet comprises a second elastic sheet body and a second elastic contact finger, a third elastic sheet body and a third elastic contact finger, the second elastic contact finger and the third elastic contact finger are respectively arranged at the front ends of the corresponding second elastic sheet body and the corresponding third elastic body, and the second elastic contact finger and the third elastic contact finger are symmetrically arranged and are arranged in the same direction.

Further, the bending radius of the first bending part is not less than 0.5 mm.

Further, the utility model also discloses a connector, this connector is used for electric connection to printed circuit board, includes above-mentioned connector terminal on the connector.

Further, the utility model also discloses a battery, including above-mentioned connector terminal on this battery.

In the embodiment of the present invention, the pin symmetry of the connector terminal is assembled in the insertion hole of the printed circuit board, and the connector terminal blade overcurrent structure ensures effective contact with the motor terminal insertion sheet. Because the pin has a bending radius, the connector terminal is ensured not to be in insufficient soldering. The effective bending radius can prevent the terminal corner from generating fracture, and can greatly improve the plugging service life of the connector terminal. Meanwhile, the effective adhesion of the soldering tin surface and the printed circuit board during reflow soldering can be effectively solved, and the reflow soldering effect can be effectively ensured. The terminal can meet the discharge requirements of small power batteries such as electric tools of dust collectors and the like, so that the discharge output between the batteries and a host is more stable, the terminal can be simultaneously carried out with SMT (surface mount technology) chip mounting, the production automation is easy to realize, and the production efficiency of products is greatly improved; stable over-current and anti-fatigue capability, greatly improves the reliability of products, and provides powerful quality guarantee for the mass and large-scale production of small power batteries.

Drawings

Fig. 1 is a cross-sectional view of a conventional connector terminal pin provided in an embodiment of the present invention;

fig. 2 is a perspective view of a connector terminal according to an embodiment of the present invention;

fig. 3 is another perspective view of the connector terminal shown in fig. 2 according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of the connector terminal shown in fig. 2 provided by an embodiment of the present invention;

fig. 5 is a perspective view of another connector terminal provided in an embodiment of the present invention;

fig. 6 is another perspective view of the connector terminal shown in fig. 5 according to an embodiment of the present invention;

fig. 7 is a perspective view of a printed circuit board according to an embodiment of the present invention;

fig. 8 is a connection structure diagram of a connector terminal and a printed circuit board according to an embodiment of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 2 to 6, the connector terminal 2 includes: the supporting part 21, the elastic sheet 22 formed by extending from the upper end of the supporting part 21, the soldering tin part 23 formed by extending from the lower end of the supporting part 21, the first pin 25 formed by extending one end of the soldering tin surface 211 of the soldering tin part 23, the first bending part 24 formed by bending between the soldering tin surface 211 and the first pin 25, and the bending radius of the first bending part 24 is not less than 0.5 mm; the other end of the solder face 211 extends and forms the second lead 28 and the third lead 29.

Further, the other end of the solder surface 211 is bent to form a first connection portion 27, one side of the first connection portion 27 is bent to form a second lead 28, and the other side of the first connection portion 27 opposite to the first connection portion is bent to form a third lead 29.

Furthermore, a second lead 28 and a third lead 29 are respectively formed extending perpendicularly to the two sides of the solder surface 211.

In the present embodiment, the elastic sheet 22 may be a single elastic sheet or a double elastic sheet.

The single elastic piece includes a first elastic piece body 221 and a first elastic contact finger 222 connected to the first elastic piece body 221, and the first elastic contact finger 222 is disposed at the front end of the elastic piece body 221.

The double-spring-piece comprises a second spring-piece body 223 and a second elastic contact finger 224, a third spring-piece body 225 and a third elastic contact finger 226, the second elastic contact finger 224 and the third elastic contact finger 226 are respectively arranged at the front ends of the corresponding second spring-piece body 223 and the third spring-piece body 225, the second elastic contact finger 224 and the third elastic contact finger 226 are symmetrically arranged, and the arrangement directions are consistent.

Fig. 7 is a perspective view of a printed circuit board provided in an embodiment of the present invention, and fig. 8 is a connection structure diagram of a connector terminal printed circuit board provided in an embodiment of the present invention, as shown in fig. 7 and fig. 8, a connector terminal is symmetrically assembled on a reflow soldering region 51 in a printed circuit board 5, a pin of the connector terminal is inserted into a jack 52, and an overcurrent structure of the connector terminal tab ensures effective contact with a motor terminal tab.

In the description of the present invention, it is to be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and to simplify 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. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

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 construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A connector terminal comprises a supporting part, an elastic sheet formed by extending from the upper end of the supporting part, and a soldering tin part formed by extending from the lower end of the supporting part; one end of a soldering tin surface of the soldering tin part extends to form a first pin, and the other end of the soldering tin surface extends to form a second pin and a third pin; the soldering tin surface and the first pin are bent to form a first bending part.

2. The connector terminal according to claim 1, wherein the other end of the solder surface is bent to form a first connection portion, one side of the first connection portion is bent to form the second pin, and the other side of the first connection portion opposite to the first connection portion is bent to form the third pin.

3. The connector terminal according to claim 2, wherein the spring piece is a single spring piece.

4. The connector terminal according to claim 3, wherein the single spring piece includes a first spring piece body and a first elastic contact finger, and the first elastic contact finger is disposed at a front end of the first spring piece body.

5. The connector terminal according to claim 1, wherein the second pin and the third pin are formed by extending the solder surface perpendicularly to two side edges of the first pin, respectively.

6. The connector terminal according to claim 5, wherein the spring piece is a double spring piece.

7. The connector terminal according to claim 6, wherein the elastic piece includes a second elastic piece body and a second elastic contact finger, a third elastic piece body and a third elastic contact finger, the second elastic contact finger and the third elastic contact finger are respectively disposed at front ends of the second elastic piece body and the third elastic body, and the second elastic contact finger and the third elastic contact finger are symmetrically disposed and disposed in the same direction.

8. The connector terminal according to claim 3, wherein a bending radius of the first bent portion is not less than 0.5 mm.

9. A connector for electrical connection to a printed circuit board, wherein the connector is provided with a connector terminal according to any one of claims 1 to 8.

10. A battery, characterized in that the battery is provided with the connector terminal according to any one of claims 1 to 8.