CN201877464U

CN201877464U - SMD (surface-mounted) type LED (light-emitting diode) short pitch lead frame

Info

Publication number: CN201877464U
Application number: CN2010206664821U
Authority: CN
Inventors: 李胜刚
Original assignee: HUBEI KUANGTONG ELECTRONIC CO Ltd
Current assignee: Hubei Kuangtong Electronic Co., Ltd.
Priority date: 2010-12-18
Filing date: 2010-12-18
Publication date: 2011-06-22
Anticipated expiration: 2020-12-18

Abstract

The utility model relates to a SMD (surface-mounted) type LED (light-emitting diode) short pitch lead frame, comprising a plurality of brackets formed by lead frame units, a plurality of technical edge units at the two sides of the brackets, and positioning holes arranged on the technical edge units, wherein the distance a between every two positioning holes is less than 12.0mm, and the array pitch e between every two lead frame units is less than 8.0mm. In the SMD type LED short pitch lead frame, the pitch and the array pitch between every two central lines on single SMD type LED short pitch lead frame is shortened, the lead frame with each traditional 72-particle bracket can be distributed with more SMD type LED leads. For example, the pitch of the SMD type LED short pitch lead frame is 9.00mm, the array pitch is 6.7mm, compared with the traditional lead frame with the pitch being 12.00mm and the array pitch being 8.00mm, the use amount of the material of the SMD type LED short pitch lead frame can be saved by 35.71%, material consumption and production cost are reduced, and simultaneously, the production efficiency is greatly improved.

Description

SMD type LED short pitch lead frame

Technical field

The utility model relates to a kind of parts of producing surface-adhered type SMD type LED, is specifically related to a kind of SMD type LED short pitch lead frame.

Background technology

Surface-adhered type SMD type LED light-emitting diode belongs to the environmental protection light source, is a kind of novel surface mounted type light emitting semiconductor device, has that energy consumption is low, luminous efficiency is high, volume is little, scattering angle is big, uniformity of luminance is good, the reliability advantages of higher.Its glow color comprises full-color, various monochrome and white light, is mainly used in the utilization of aspects such as various electronic products, large scale led are backlight, decoration, view, illumination, auto lamp, and will progressively replaces traditional lighting.

The general-purpose lead of mounted type SMD type LED encapsulation at present framework dimensions length is 144.00mm, and pitch is 12.00mm, and array pitch is 7.80mm, and the technology hem width is 5.96mm, and accurate copper alloy belt is 0.20mm.Pitch, array pitch, technology limit are all bigger, increase accurate copper alloy belt or accurate steel band consumption, and product cost is higher.

Summary of the invention

The purpose of this utility model provides a kind of SMD type LED short pitch lead frame, solves SMD type LED lead frame cost height in the prior art, the problem that supplies consumption is big.On the basis that ensures surface mount surface-adhered type SMD type LED quality and function active zone, reduce pitch, reduce the consumptive material of SMD type LED lead frame, reduce production costs and supplies consumption.

For solving the problems of the technologies described above, the purpose of this utility model is achieved in that a kind of SMD type LED short pitch lead frame, comprise support, a plurality of technology edge elements on support both sides and the location hole that the technology edge element is provided with that a plurality of lead frames unit constitutes, adjacent two location hole spacing a are less than 12.0mm, and the array pitch e of lead frame unit is less than 8.0mm.

The hem width degree b of technology edge element is less than 5.96mm, adjacent two lead frame Elementary Function districts card muscle width c less than 1.96mm, dowel width d less than 3.0mm.

A kind of SMD type of the utility model LED short pitch lead frame has shortened pitch and array pitch between adjacent two center lines on single the SMD type LED lead frame, and using every traditional support is that 72 lead frame can be arranged more SMD type LED lead-in wire.As: SMD type LED lead frame pitch is 9.00mm, array pitch is 6.7mm, and lead frame is 12.00mm than conventional lead frame pitch, and array pitch is that 8.00mm SMD type LED blaster fuse frame material consumption saves 35.71%, reduce supplies consumption and production cost, production efficiency improves greatly simultaneously.

Description of drawings

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

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

Fig. 2 is a lead frame cellular construction schematic diagram of the present utility model.

Embodiment

A kind of SMD type LED short pitch lead frame, comprise support, a plurality of technology edge elements 2 on support both sides and the location hole 3 that technology edge element 2 is provided with that a plurality of lead frames unit 1 constitutes, adjacent two location holes, 3 spacing a are less than 12.0mm, and the array pitch e of lead frame unit 1 is less than 8.0mm.The hem width degree b of technology edge element 2 is less than 5.96mm, adjacent two lead frame unit, 1 functional areas card muscle width c less than 1.96mm, dowel width d less than 3.0mm.

As shown in Figure 1: the lead frame total length L is 144.00mm in the utility model, and is identical with conventional lead frame length, and its width technology is adjusted accordingly.Adjacent two location holes, 3 spacing a are lead frame unit 1 pitch a.

Scheme 1:

Lead frame unit 1 pitch a is less than 12.00mm, and the array pitch of lead frame unit 1 is respectively 9.0mm and 6.7mm less than 8.0mm.

Scheme 2:

Lead frame unit 1 pitch a is less than 12.00mm, and the array pitch of lead frame unit 1 is respectively 9.6mm and 7.0mm less than 8.0mm.

Satisfying try one's best under the process conditions prerequisite shortening of pitch a and array pitch e, to save material usage and to improve production capacity efficient.

Claims

1. a SMD type LED short pitch lead frame comprises support, a plurality of technology edge elements (2) on support both sides and the location hole (3) that technology edge element (2) is provided with that a plurality of lead frames unit (1) constitutes, and it is characterized in that:

Adjacent two location holes (3) spacing a is less than 12.0mm, and the array pitch e of lead frame unit (1) is less than 8.0mm.

2. a kind of SMD type LED short pitch lead frame according to claim 1, it is characterized in that: the hem width degree b of technology edge element (2) is less than 5.96mm, adjacent two lead frame unit (1) functional areas card muscle width c less than 1.96mm, dowel width d less than 3.0mm.