CN217387198U

CN217387198U - Double-cup SMD support

Info

Publication number: CN217387198U
Application number: CN202220358758.2U
Authority: CN
Inventors: 李爱荣
Original assignee: Guangdong Pinmei Electronics Technology Co ltd
Current assignee: Guangdong Pinmei Electronics Technology Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-09-06
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a two cup SMD support, including four metal pad and cladding at its outside integrative injection moulding's plastic main part, the plastic main part is provided with the anti-light cup of two shape symmetries, two pads of the equal fixed connection of the luminous end of two anti-light cups, be provided with the insulating part between two pads, the insulating part is integrated into one piece with the plastic main part, the summit department that four pads and insulating part meet is provided with the metal inserted sheet, two inserted sheets of every pad are "eight" font setting, and the length of inserted sheet is less than half of the width of insulating part. Such design makes two cup SMD supports not only can install the lamp pearl of two kinds of different colour temperatures, has still increased the adhesion degree of pad and plastic main part for the metal pad is more firm, all is difficult for droing when welding or reprocess, improves the rate of utilization, and simultaneously, the setting of metal inserted sheet can also transmit the inside heat of plastic main part fast, promotes electronic component's thermal diffusivity, reduces the light decay, has prolonged patch element's life.

Description

Double-cup SMD support

Technical Field

The utility model relates to a LED encapsulation technical field, especially a two cup SMD supports.

Background

The SMD support is also called a paster LED support and is a base of the LED lamp bead before packaging. The SMD support of prior art includes plastic main part and metal pad, still can increase as required and set up the wall portion, makes the SMD support form two cup structures for install the lamp pearl of two kinds of different colour temperatures. However, because the adhesive force between the plastic main body and the metal pad in the SMD support is poor, when the SMD patch element is welded to the circuit board, the pad is easy to fall off, and when the circuit board is repaired, the local instantaneous temperature of the pad is too high due to the local high temperature of the electric soldering iron, and meanwhile, the pad is easy to fall off due to the physical stress of the electric soldering iron head on the pad, especially the double-cup SMD support, the area of the pad is smaller than that of the single-cup SMD support, and the pad is easy to fall off, and the utilization rate is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a double-cup SMD support, its pad is connected with the plastic main part is firm, is difficult for droing.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a two cup SMD support, four metal pads and cladding are at its outside integrative injection moulding's plastic main part, the plastic main part is provided with the anti-light cup of two shape symmetries, two the equal fixed connection of the luminous end of anti-light cup is two the pad, two be provided with insulating part between the pad, insulating part with the plastic main part is integrated into one piece, four the pad with the summit department that insulating part meets is provided with the metal inserted sheet, every two of pad the inserted sheet is "eight" font setting, just the length of inserted sheet is less than half of the width of insulating part.

And the four welding pads respectively extend out of the plastic main body to form welding feet, and the four welding feet are respectively provided with a fillet which is concave towards the inner side.

Every the pad except being provided with the side of leg all by the plastic main part parcel.

And a concave part is arranged at the joint of each bonding pad and the plastic main body.

Two opposite side surfaces of the plastic main body are respectively provided with at least one groove.

The bottom of the insulating part is provided with at least one moisture absorption hole, and a filler made of high-molecular water-absorbent resin is arranged in the moisture absorption hole.

The cross-sectional patterns of the two reflecting cups in the direction parallel to the end face of the light-emitting end are formed by connecting a first arc and a second arc end to end, the radian of the first arc is 180 degrees, and the radian of the second arc is less than 10 degrees.

And a break structure is arranged at the rim of the cup mouth of the light outlet end of the two reflecting cups.

The utility model has the advantages that: the four metal pads of the double-cup SMD bracket are respectively provided with an inserting piece inserted into the plastic main body, and the two inserting pieces of each pad are arranged in a splayed shape, so that the pads are more tightly connected with the plastic main body and are not easy to fall off; the four welding feet are respectively provided with a fillet which is concave inwards, so that spot welding positioning is facilitated, the welding area is increased, and welding and fixing are facilitated; in addition, the bottom of the insulating part is also provided with a moisture absorption hole, so that the moisture resistance of the double-cup SMD support is enhanced. The design can fix the bonding pad and the plastic main body, so that the bonding pad is not easy to fall off; moreover, the four metal pads extend to insert the inserting pieces in the plastic main body, so that heat storage conduction in the plastic main body is facilitated, heat dissipation is accelerated, light attenuation is reduced, and the service life of the LED lamp is prolonged.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an exploded view of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

description of reference numerals:

1. a plastic body; 101. a light reflecting cup; 102. a step structure; 103. an insulating section; 1031. a moisture-absorbing aperture; 104. a groove; 201. inserting sheets; 202. Welding feet; 2021. and (4) rounding.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but 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.

As shown in fig. 1-2, a dual-cup SMD holder includes four metal pads and an integrally injection molded plastic main body 1 covering the metal pads. The plastic main body 1 is provided with two reflecting cups 101 with symmetrical shapes, and the light-emitting ends of the two reflecting cups 101 are fixedly connected with the two bonding pads. An insulating part 103 is arranged between the two welding pads, and the insulating part 103 and the plastic main body 1 are integrally formed. Four the pad with the summit department that insulating part 103 meets is provided with metal inserted sheet 201, every two of pad inserted sheet 201 is "eight" font setting, just the length of inserted sheet 201 is less than half of the width of insulating part 103. By the design, the bonding between the inner edge of the bonding pad of the double-cup SMD support and the plastic main body 1 is more stable and is not easy to fall off, and meanwhile, the heat inside the plastic main body 1 can be quickly conducted, and the light attenuation is reduced.

Four the pad respectively to the outside of plastic main part 1 extends soldering leg 202, four soldering leg 202 is provided with concave fillet 2021 to the inboard respectively, has increased soldering leg 202's welding area like this, makes the welding firm, is difficult for droing.

Each side face of the pad except the side face provided with the solder leg 202 is wrapped by the plastic main body 1. The metal pads extend out of the sides of the solder tails 202, and the rest of the sides are surrounded by the plastic body 1, so that the metal pads are fixed while avoiding accidental connection to short the circuit.

Every the pad with the junction of plastic main part 1 is provided with depressed part 203, and the mutual interlock of metal pad and plastic main part 1 is connected, prevents that the pad from taking place to drop.

Two opposite sides of plastic main part 1 are provided with at least one recess 104 respectively for the anchor clamps that automatic subsides dress set up can be firm carry the SMD support and weld, improve the qualification rate of product.

At least one moisture absorption hole 1031 is formed at the bottom of the insulating part 103, and a filler made of a high molecular water absorbent resin is disposed inside the moisture absorption hole 1031. Such design, the inside moisture of absorbable and removable paster component reaches ideal dampproofing effect, makes the paster component weld the back difficult deterioration because of weing and drops.

The cross-sectional patterns of the two reflecting cups 101 in the direction parallel to the end face of the light-emitting end are formed by connecting an arc I (a) and an arc II (b) end to end. The radian of the first arc (a) is 180 degrees, and the radian of the second arc (b) is less than 10 degrees. In this embodiment, the radian of circular arc two (b) is 7.8 degrees, and like this, the inner wall of anti-light cup is close the ellipse for the lamp pearl light-emitting is even, has improved the light-emitting rate of paster LED lamp.

Two the rim of a cup edge of the light-emitting end of reflection of light cup 101 is provided with disconnected poor structure 102, and the pouring sealant can fill and level up reflection of light cup when making two cups SMD encapsulation, can effectively prevent to overflow and glue, makes the paster LED lamp pearl terminal surface after the encapsulation flush, and the regularity is better, more does benefit to automatic encapsulation.

The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.

Claims

1. A two cup SMD support which characterized in that: including four metal pads and cladding at its outside integrative injection moulding's plastic main part (1), plastic main part (1) is provided with two anti-light cup (101) of shape symmetry, two the equal fixed connection of luminous end of anti-light cup (101) is two the pad, two be provided with insulating part (103) between the pad, insulating part (103) with plastic main part (1) is integrated into one piece, four the pad with the summit department that insulating part (103) meet is provided with metal inserted sheet (201), every two of pad inserted sheet (201) are "eight" font setting, just the length of inserted sheet (201) is less than half of the width of insulating part (103).

2. The double SMD holder as claimed in claim 1, characterised in that: the four welding pads respectively extend out of welding feet (202) towards the outer part of the plastic rubber main body (1), and the four welding feet (202) are respectively provided with a fillet (2021) which is concave towards the inner side.

3. The double SMD holder as claimed in claim 2, characterised in that: each side face of the welding pad except the side face provided with the welding leg (202) is wrapped by the plastic rubber main body (1).

4. The double SMD holder as claimed in claim 1, characterised in that: and a concave part (203) is arranged at the joint of each bonding pad and the plastic rubber main body (1).

5. The double SMD holder as claimed in claim 1, characterised in that: two opposite side surfaces of the plastic main body (1) are respectively provided with at least one groove (104).

6. The double SMD holder as claimed in claim 1, characterised in that: the bottom of the insulating part (103) is provided with at least one moisture absorption hole (1031), and a filler made of high-molecular water-absorbent resin is arranged in the moisture absorption hole (1031).

7. The dual cup SMD holder of claim 1, wherein: the cross-sectional patterns of the two light reflecting cups (101) in the direction parallel to the end face of the light emitting end are formed by connecting a first arc (a) and a second arc (b) end to end, the radian of the first arc (a) is 180 degrees, and the radian of the second arc (b) is less than 10 degrees.

8. The dual cup SMD holder of claim 1, wherein: and a break structure (102) is arranged at the edge of the cup mouth of the light outlet end of the two reflecting cups (101).