CN103296180A

CN103296180A - Novel damp-proof outdoor SMDLED (surface mount device light-emitting diode)

Info

Publication number: CN103296180A
Application number: CN2013102006972A
Authority: CN
Inventors: 谭亮
Original assignee: Xiamen Xindeco Optoelectronics Co Ltd
Current assignee: Xiamen Xindeco Optoelectronics Co Ltd
Priority date: 2013-05-27
Filing date: 2013-05-27
Publication date: 2013-09-11
Anticipated expiration: 2033-05-27
Also published as: CN103296180B

Abstract

The invention discloses a novel damp-proof outdoor SMDLED (surface mount device light-emitting diode) comprising a support, pins, chips and gold threads. The support is provided with an accommodating cavity hollow out at the bottom, the pins are symmetrically embedded at the hollow-out position, pins on one side serve as positive pins and pins on the other side serve as negative pins; a PPA (phenyl-propanolamine) colloid layer is arranged at the bottom of the accommodating cavity, and reserved to form circular chip-accommodating through grooves and circular gold-thread-accommodating through grooves; the chips are disposed in the circular chip-accommodating through grooves and are respectively connected with the positive pins and the negative pins through the gold threads, and connecting ends of the gold threads and the positive and negative pins are disposed in the circular gold-thread-accommodating through grooves. According to the arrangement, the gold threads contact well with the pins without being pressed by security threads, so that manufacturing process is simple with a simplified structure, and cost is saved. Meanwhile, the colloid is encapsulated in the gold-thread-accommodating through grooves to prevent water vapor from rising along the pins to contact with the gold threads, so that damp-proof function is further performed, and service life is prolonged.

Description

The outdoor SMDLED of a kind of novel protection against the tide

Technical field

The present invention relates to a kind of LED, refer in particular to the outdoor SMD LED of a kind of novel protection against the tide.

Background technology

A kind of SMDLED structure as Fig. 1 to Fig. 4 discloses comprises the support 10, PIN pin 20, chip 30, gold thread 40 and the safety line 50 that are provided with containing cavity 101; As shown in Figure 4, containing cavity 101 bottom hollow outs, PIN pin 20 symmetries are embedded in the hollow out place, and as negative pole PIN pin 20, and PIN pin 20 stretches in the containing cavity 101 side as anodal PIN pin 20, one sides; As shown in Figure 2, chip 30 is installed on the PIN pin 20, is connected with symmetrically arranged anodal PIN pin 20 and negative pole PIN pin 20 respectively by gold thread 40.

Described SMDLED structure, steam still climbs up along the gap between support 10 and the PIN pin 20, as shown in Figure 2, climb up along the direction of arrow, corrode the contact position of gold thread 40 and anodal PIN pin 20 and negative pole PIN pin 20 easily, cause loose contact, even come off easily, additionally press safety line 50 again in gold thread 40 and PIN pin 20 contact positions usually, be used for compressing contacting of gold thread 40 and PIN pin 20, its complex manufacturing technology, and increase cost.Therefore, described SMDLED structural entity moisture resistant grade is not high relatively, and the life-span is shorter relatively.

In view of the above-mentioned defective of prior art, the inventor furthers investigate, and invents a kind of outdoor SMD LED of novel protection against the tide that overcomes described defective, and this case produces thus.

Summary of the invention

The object of the present invention is to provide a kind of LED of lifting moisture resistant grade and increase the outdoor SMD LED of novel protection against the tide in its useful life.

For reaching above-mentioned purpose, solution of the present invention is:

The outdoor SMD LED of a kind of novel protection against the tide comprises the support, PIN pin, chip and the gold thread that are provided with containing cavity; Containing cavity bottom hollow out, PIN pin symmetry is embedded in the hollow out place, and a side is as anodal PIN pin, and a side is as negative pole PIN pin; The containing cavity bottom arranges one deck PPA colloid, and reserves the formation ccontaining groove of circular chip and the ccontaining groove of circular gold thread; Chip places the ccontaining groove of circular chip, and chip is connected with anodal PIN pin and negative pole PIN pin by gold thread respectively, and gold thread and anodal PIN pin link and all place the ccontaining groove of circular gold thread with negative pole PIN pin link.

Further, the PIN pin is made up of first flanging, second flanging, the 3rd flanging, Fourth Fold and the 5th flanging, and first flanging is connected with second flanging and is " 7 " font, and Fourth Fold is connected with the 5th flanging and is " 7 " font; Second flanging is connected by the 3rd flanging with Fourth Fold.

Further, the oral area of containing cavity forms step.

Further, sealing resin colloid in the containing cavity.

After adopting such scheme, containing cavity of the present invention bottom arranges one deck resin colloid, and this resin colloid is blocked the gap between support and the PIN pin, and blocking-up steam climbs up along the gap between support and the PIN pin, and corrosion gold thread and PIN pin contact the raising moisture resistant grade.Therefore, contact well between gold thread and the PIN pin, need not to adopt and press safety line, make its manufacture craft simple, designs simplification, and save cost.

Description of drawings

Fig. 1 is prior art SMDLED vertical view;

Fig. 2 is the cutaway view of Figure 1A-A direction;

Fig. 3 is prior art SMDLED end view;

Fig. 4 is prior art SMDLED stereogram;

Fig. 5 is prior art SMDLED partial exploded view;

Fig. 6 is vertical view of the present invention;

Fig. 7 is the cutaway view of Fig. 5 B-B direction;

Fig. 8 is stereogram of the present invention;

Fig. 9 is partial exploded view of the present invention.

Label declaration

Support 10 PIN pin 20

Chip 30 gold threads 40

Safety line 50

Support 1 containing cavity 11

Ccontaining groove 12 steps 13 of chip

The ccontaining groove 14 of gold thread

PIN pin 2 first flangings 21

Second flanging 22 the 3rd flanging 23

Fourth Fold 24 the 5th flanging 25

Chip 3 gold threads 4

PPA colloid 5.

Embodiment

The invention will be further described below in conjunction with drawings and the specific embodiments.

Consult Fig. 6 to shown in Figure 9, the outdoor SMDLED of a kind of novel protection against the tide that the present invention discloses comprises the support 1, PIN pin 2, chip 3 and the gold thread 4 that are provided with containing cavity 11.

Containing cavity 11 bottom hollow outs, PIN pin 2 symmetries are embedded in the hollow out place, a side as anodal PIN pin 2, one sides as negative pole PIN pin 2.Containing cavity 11 bottoms arrange one deck resin colloid 5, and reservation forms the ccontaining groove 12 of circular chip and the ccontaining groove 14 of circular gold thread, chip 3 places the ccontaining groove 12 of circular chip, chip 3 is connected with anodal PIN pin 2 and negative pole PIN pin 2 by gold thread 4 respectively, and gold thread 4 all places the ccontaining groove 14 of circular gold thread with anodal PIN pin 2 links and with negative pole PIN pin 2 links.

In containing cavity 11 bottoms one deck PPA colloid 5 is set, and reservation forms the ccontaining groove 12 of circular chip and the ccontaining groove 14 of circular gold thread, chip 3 places the ccontaining groove 12 of circular chip, and gold thread 4 all places the ccontaining groove 14 of circular gold thread with anodal PIN pin 2 links and with negative pole PIN pin 2 links, this PPA colloid 5 is blocked the gap between support 1 and the PIN pin 2, blocking-up steam climbs up along the gap between support 1 and the PIN pin 2, and the contacting of corrosion gold thread 4 and PIN pin 2, improve moisture resistant grade, be applicable to that outdoor wet environment uses.

For increasing steam along the distance of creeping on cavity slope, at the oral area formation step 13 of containing cavity 11, step 13 can be the one-level step, also can be multistage step.Simultaneously, the present invention in use, sealing resin colloid in containing cavity 11 for the protection of chip 3 and gold thread 4, increases the service life usually.

As shown in Figure 7, PIN pin 2 is made up of first flanging 21, second flanging 22, the 3rd flanging 23, Fourth Fold 24 and the 5th flanging 25, and first flanging 21 is connected with second flanging 22 and is " 7 " font, and Fourth Fold 24 is connected with the 5th flanging 25 and is " 7 " font; Second flanging 22 is connected by the 3rd flanging 23 with Fourth Fold 24.

The above is one embodiment of the present of invention only, is not the restriction to this case design, and all equivalent variations of doing according to the design key of this case all fall into the protection range of this case.

Claims

1. the outdoor SMD LED of novel protection against the tide is characterized in that: comprise the support, PIN pin, chip and the gold thread that are provided with containing cavity; Containing cavity bottom hollow out, PIN pin symmetry is embedded in the hollow out place, and a side is as anodal PIN pin, and a side is as negative pole PIN pin; The containing cavity bottom arranges one deck PPA colloid, and reserves the formation ccontaining groove of circular chip and the ccontaining groove of circular gold thread; Chip places the ccontaining groove of circular chip, and chip is connected with anodal PIN pin and negative pole PIN pin by gold thread respectively, and gold thread and anodal PIN pin link and all place the ccontaining groove of circular gold thread with negative pole PIN pin link.

2. the outdoor SMD LED of a kind of novel protection against the tide as claimed in claim 1, it is characterized in that: the PIN pin is made up of first flanging, second flanging, the 3rd flanging, Fourth Fold and the 5th flanging, first flanging is connected with second flanging and is " 7 " font, and Fourth Fold is connected with the 5th flanging and is " 7 " font; Second flanging is connected by the 3rd flanging with Fourth Fold.

3. the outdoor SMD LED of a kind of novel protection against the tide as claimed in claim 1 is characterized in that: the oral area formation step of containing cavity.

4. the outdoor SMD LED of a kind of novel protection against the tide as claimed in claim 1 is characterized in that: sealing resin colloid in the containing cavity.