CN213340424U

CN213340424U - Lead frame for multi-cup LED

Info

Publication number: CN213340424U
Application number: CN202022462693.XU
Authority: CN
Inventors: 颜昌春; 黄经科
Original assignee: Dongguan Jiale Electronic Co ltd
Current assignee: Dongguan Jiale Electronic Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-01
Anticipated expiration: 2030-10-29

Abstract

The utility model relates to the technical field of LED, in particular to a lead frame for a multi-cup LED, which comprises a frame body, wherein the frame body is provided with a holding cavity, a plurality of groups of conductive components are arranged in the holding cavity, and each group of conductive components comprises a first conductive piece, a second conductive piece, a third conductive piece and a fourth conductive piece, wherein the second conductive piece is positioned on the same side of the first conductive piece; the side edge of the fourth conductive piece is fixedly connected with the frame body through a first connecting part, and the width of the first connecting part is 0.05-0.2 mm. Through the side and the frame body fixed connection of first connecting portion with fourth electrically conductive piece to avoid appearing warping, cracked phenomenon emergence at the in-process fourth electrically conductive piece of moulding plastics, also strengthened the plastic drawing of patterns power simultaneously, the design width of first connecting portion is little moreover, threshes when easily the customer shells the lamp pearl.

Description

Lead frame for multi-cup LED

Technical Field

The utility model belongs to the technical field of the LED technique and specifically relates to indicate a lead frame for many cups LED.

Background

An LED is a solid-state semiconductor device, which can directly convert electricity into light, has many advantages such as small size, low power consumption, long service life, high brightness, low heat, environmental protection, and durability, and is an ideal light source.

The current lead frame structure generally sets up a plurality of conductive terminals in the both sides of its frame body, and the welding foot end of each conductive terminal all with frame body integrated into one piece, but the connecting portion of the conductive piece that is close to frame body edge in current design is not consolidated with the frame body, leads to like this in the processing procedure of moulding plastics, and the phenomenon of fracture appears in the conductive piece connecting portion of here easily, causes the wasting of resources.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a many cups body lead frame for LED, through first connecting portion with the side and the frame body fixed connection of fourth electrically conductive piece to avoid appearing warping, cracked phenomenon emergence in the in-process fourth electrically conductive piece of moulding plastics, also strengthened the plastic drawing of patterns power simultaneously, the design width of first connecting portion is little in addition, easily the customer threshes when shelling the lamp pearl.

In order to solve the technical problem, the utility model discloses a following technical scheme: the lead frame for the multi-cup LED comprises a frame body, wherein the frame body is provided with a containing cavity, the containing cavity is provided with a plurality of groups of conductive components, and each group of conductive components comprises a first conductive piece, a second conductive piece, a third conductive piece and a fourth conductive piece, wherein the second conductive piece is positioned on the same side of the first conductive piece, the third conductive piece is horizontally arranged opposite to the first conductive piece, and the fourth conductive piece is positioned on the same side of the third conductive piece; the side edge of the fourth conductive piece is fixedly connected with the frame body through a first connecting part, and the width of the first connecting part is 0.05-0.2 mm.

Preferably, the accommodating cavity is provided with two groups of conductive assemblies which are arranged in parallel along the vertical direction.

Preferably, the first conductive piece, the second conductive piece, the third conductive piece and the fourth conductive piece each include a second connecting portion, a welding table disposed at one end of the second connecting portion, and a leg disposed at the other end of the second connecting portion, and the leg and the frame body are integrally formed.

Preferably, a positioning space for positioning the frame body during machining is arranged between two adjacent groups of the conductive assemblies.

Preferably, an avoiding notch is formed in the middle of the welding table of the first conductive piece.

Preferably, the second connecting part is provided with a reinforcing notch.

Preferably, the second connecting portion, the first connecting portion and the frame body of the fourth conductive member are integrally formed.

The beneficial effects of the utility model reside in that: the utility model provides a lead frame for multi-cup LED, which is used for the LED of multi-cup, the LED supports on each cup have the same function, and the LED supports with different sizes can be made by the producer through adjusting the interval between the first conductive piece and the second conductive piece and the third conductive piece and the fourth conductive piece, so as to meet the requirements of different customers; through the side and the frame body fixed connection of first connecting portion with fourth electrically conductive piece to avoid appearing warping, cracked phenomenon emergence at the in-process fourth electrically conductive piece of moulding plastics, also strengthened the plastic drawing of patterns power simultaneously, the design width of first connecting portion is little moreover, threshes when easily the customer shells the lamp pearl.

Drawings

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

Fig. 2 is a schematic structural view of the four cup installation positions of the present invention in practical application when the number of the conductive components is four groups.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention.

As shown in fig. 1, the lead frame for a multi-cup LED comprises a frame body 1, wherein the frame body 1 is provided with a containing cavity 10, the containing cavity 10 is provided with a plurality of groups of conductive components 2, each group of conductive components 2 comprises a first conductive member 20, a second conductive member 21 located on the same side as the first conductive member 20, a third conductive member 22 horizontally arranged opposite to the first conductive member 20, and a fourth conductive member 23 located on the same side as the third conductive member 22; the side edge of the fourth conductive member 23 is fixedly connected with the frame body 1 through a first connecting portion 24, and the width of the first connecting portion 24 is 0.05 to 0.2 mm.

Preferably, the width of the first connection portion 24 is 0.1 mm.

The utility model discloses a lead frame is used for the LED of many cups, and the LED support effect on each cup is the same, and the producer can make the LED support of different sizes through the interval adjustment between "first conductive piece 20 and second conductive piece 21" and "third conductive piece 22 and fourth conductive piece 23" to satisfy different customers' demand; through first connecting portion 24 with the side and the frame body 1 fixed connection of fourth electrically conductive piece 23 to avoid appearing warping, cracked phenomenon at the in-process fourth electrically conductive piece 23 of moulding plastics and taking place, also strengthened the plastic drawing of patterns power simultaneously, first connecting portion 24's design width is little moreover, threshes when easy customer shells the lamp pearl.

In this embodiment, the accommodating cavity 10 is provided with two sets of conductive components 2, and the two sets of conductive components 2 are arranged in parallel along the vertical direction. Preferably, the second group of conductive components 2 is rotated by 180 degrees clockwise relative to the first group of conductive components 2, so that the overall structure of the lead frame is more compact, the production cost is saved, and the lead frame is convenient to transport.

In this embodiment, each of the first conductive member 20, the second conductive member 21, the third conductive member 22 and the fourth conductive member 23 includes a second connecting portion 25, a soldering land 26 disposed at one end of the second connecting portion 25, and a solder fillet 27 disposed at the other end of the second connecting portion 25, and the solder fillet 27 is integrally formed with the frame body 1. The structural design of integrated into one piece, it is stronger to connect the steadiness, effectively avoids appearing the phenomenon emergence of electrically conductive fracture, damage in the transportation with in the injection moulding processing process.

In this embodiment, a positioning space 3 for positioning the frame body 1 during processing is provided between two adjacent sets of the conductive components 2. In the injection molding process, the positioning space 3 is used for installing the positioning guide post so as to avoid the phenomenon that the glue filling of the bonding pad is small due to the deviation of the installation position.

In this embodiment, the middle of the soldering station 26 of the first conductive member 20 is provided with an avoidance gap 28. When installing the guide pillar to location interval 3, the welding stage 26 of first conductive piece 20 can receive and come from the extruded power of guide pillar, and welding stage 26 has certain deformability when dodging breach 28 this moment to avoid welding stage 26 to produce wearing and tearing, cracked phenomenon when receiving the guide pillar extrusion and take place, after moulding plastics, dodge breach 28 simultaneously and also effectively improve the bonding dynamics of the pad of first conductive piece 20 and base, and the steadiness is stronger.

In this embodiment, the second connecting portion 25 is provided with a reinforcing notch 29. The reinforcing notch 29 is used for improving the structural stability between the second connecting part 25 and the base after injection molding, so that the use stability of the LED support is ensured.

In this embodiment, the second connecting portion 25, the first connecting portion 24 and the frame body 1 of the fourth conductive member 23 are integrally formed. The connection structure of the second connection portion 25, the first connection portion 24 and the frame body 1 of the integrally formed fourth conductive member 23 is more stable, and further, the second connection portion 25 of the fourth conductive member 23 is prevented from being broken or damaged in the processing process.

Fig. 2 is a schematic structural diagram of four cup installation positions when the number of the conductive components is four in practical application of the present invention, wherein a0 is a cup.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Many cups lead frame for LED, including frame body (1), its characterized in that: the frame body (1) is provided with a containing cavity (10), the containing cavity (10) is provided with a plurality of groups of conducting components (2), and each group of conducting components (2) comprises a first conducting piece (20), a second conducting piece (21) which is positioned on the same side with the first conducting piece (20), a third conducting piece (22) which is horizontally arranged opposite to the first conducting piece (20) and a fourth conducting piece (23) which is positioned on the same side with the third conducting piece (22); the side edge of the fourth conductive piece (23) is fixedly connected with the frame body (1) through a first connecting part (24), and the width of the first connecting part (24) is 0.05-0.2 mm.

2. The lead frame for a multi-cup LED according to claim 1, characterized in that: the accommodating cavity (10) is provided with two groups of conductive components (2), and the two groups of conductive components (2) are arranged in parallel along the vertical direction.

3. The lead frame for a multi-cup LED according to claim 1 or 2, characterized in that: the first conductive piece (20), the second conductive piece (21), the third conductive piece (22) and the fourth conductive piece (23) respectively comprise a second connecting part (25), a welding table (26) arranged at one end of the second connecting part (25) and a welding leg (27) arranged at the other end of the second connecting part (25), and the welding leg (27) and the frame body (1) are integrally formed.

4. The lead frame for a multi-cup LED according to claim 3, characterized in that: and a positioning interval (3) for positioning the frame body (1) during processing is arranged between two adjacent groups of the conductive assemblies (2).

5. The lead frame for a multi-cup LED according to claim 3, characterized in that: an avoidance notch (28) is formed in the middle of the welding table (26) of the first conductive piece (20).

6. The lead frame for a multi-cup LED according to claim 3, characterized in that: the second connecting part (25) is provided with a reinforcing notch (29).

7. The lead frame for a multi-cup LED according to claim 3, characterized in that: the second connecting part (25) and the first connecting part (24) of the fourth conductive piece (23) and the frame body (1) are integrally formed.