CN205264747U - New SMD LED Bracket - Google Patents

Abstract

The utility model discloses a novel surface mount type LED bracket, which comprises a plastic base and a plurality of conductive pins embedded on the plastic base, wherein the plastic base is provided with an encapsulation cavity, and a light reflecting cup is formed in the encapsulation cavity; the conductive pin comprises a die bonding part, an extension part and a welding leg part which are integrally formed, the die bonding part is positioned in the reflective cup, the extension part is embedded in the plastic base, the welding leg part is exposed out of the plastic base, and the inner wall of the reflective cup of the plastic base is arc-shaped; the extending part of the conductive pin is concave inwards to form a 90-degree bending part, the bending part comprises a vertical part and a transverse part vertically connected to the lower end of the vertical part, the vertical part is connected with the die bonding part, and the transverse part is connected with the welding foot part. By this, through improving electrically conductive pin and anti-light cup structure, improve the relative steadiness of electrically conductive pin and plastic base, improved LED's contrast, luminosity and reliability simultaneously, can be applied to high-end field.

Description

New SMD LED Bracket

technical field

The utility model relates to the technology in the LED field, in particular to a novel patch type LED bracket.

Background technique

With the rapid development of LED chip technology and the maturity of application technology, LED lamps are getting closer and closer to our daily life. As a new type of energy-saving and environmentally friendly light source, LED outdoor display screens are closely watched by people. Many countries and The company has invested a lot of manpower and financial resources in R&D and production. The existing LED bracket includes a plastic base and a plurality of conductive pins embedded on it. This kind of LED bracket has the following defects: the combination of the conductive pin and the plastic base is not stable, Gaps are easy to appear, leading to the entry of water and moisture, and damage to the bracket. In addition, the inner wall of the reflector cup is linear, which makes the LED insufficient in light output and contrast, as shown in Figure 4. Therefore, the existing LED bracket structure should be improved to solve the above problems.

Utility model content

In view of this, the utility model aims at the deficiencies of the existing technology, and its main purpose is to provide a new patch type LED bracket. By improving the structure of the conductive pin and the reflector cup, the relative distance between the conductive pin and the plastic base can be improved. Stability, while improving the contrast, luminosity and reliability of the LED, it can be used in high-end fields.

In order to achieve the above object, the utility model adopts the following technical solutions:

A new patch-type LED bracket, including a plastic base and a plurality of conductive pins embedded in the plastic base, the plastic base has a packaging cavity, a reflective cup is formed in the packaging cavity; the conductive pins include an integrally formed The crystal-fixing part, the extension part and the welding foot part, the crystal-fixing part is located in the reflector cup, the extension part is embedded in the plastic base, the welding leg part is exposed outside the plastic base, and the inner wall of the reflector cup of the plastic base is arc-shaped shape; the extension part of the conductive pin is concaved to form a 90-degree bending part, which includes a vertical part and a horizontal part vertically connected to the lower end of the vertical part, and the vertical part is in contact with the above-mentioned crystal-bonding part , the transverse portion is in contact with the above-mentioned solder leg portion.

As a preferred solution: the plastic base is black as a whole.

As a preferred solution: the plastic base is white plastic, and the outer wall of the plastic base is coated with a black ink layer.

As a preferred solution: a step is provided at the mouth of the reflective cup of the plastic base for better combination with the packaging plastic.

As a preferred solution: the height of the vertical portion is 0.95 mm.

As a preferred solution: the length of the LED bracket is 2.80mm, the width is 2.70mm, and the height is 2.45mm.

As a preferred solution: the bottom of the plastic base is provided with an accommodating groove, and the lower end of the welding leg of the conductive pin is bent and extended to be buckled in the accommodating groove.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above-mentioned technical solution that by setting the extension part of the conductive pin as a structure connected vertically by a vertical part and a transverse part, the After the conductive pins are inlaid with the plastic base, the stability is better; in addition, the inner wall of the reflector is set in an arc shape. Both have been greatly improved and can be applied to high-end fields.

In order to more clearly illustrate the structural features and functions of the utility model, it will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the LED bracket of the present invention;

Fig. 2 is a top view schematic diagram of the LED bracket when the whole of the utility model is black;

Fig. 3 is a side schematic diagram of the LED bracket when only the outer wall of the utility model is provided with a black ink layer;

Figure 4 is a schematic diagram of the internal structure of the existing LED bracket of the present invention;

Fig. 5 is a schematic diagram of the internal structure of the LED bracket of the present invention.

Explanation of the accompanying drawings :

10. Plastic base 11. Encapsulation cavity

111. Reflector 1111. Steps

12. Black ink layer 13. Accommodating tank

20. Conductive pin 21. Die bonding part

22. Extension part 221, bending part

2211, vertical part 2212, horizontal part

23. Welding leg.

detailed description

The utility model is shown in Fig. 1 to Fig. 3 and Fig. 5, a new patch type LED bracket, including a plastic base 10 and a plurality of conductive pins 20 inlaid on the plastic base 10, wherein:

The plastic base 10 has a packaging cavity 11, and a reflective cup 111 is formed in the packaging cavity 11. The inner wall of the reflective cup 111 is arc-shaped, and a step 1111 is provided at the mouth of the reflective cup 111 for better combination with the packaging plastic. The step 1111 can improve the bonding tightness between the reflective cup 111 and the packaging plastic, and has better penetration resistance; the plastic base 10 is made of black or white plastic as a whole, and a black ink layer 12 is coated on the outer wall of the white plastic base 10, and the overall The LED bracket that is black or only the outer wall is black can effectively improve the contrast of the product; the bottom of the plastic base 10 is concavely provided with an accommodating groove 13 .

The conductive pin 20 includes an integrally formed crystal-bonding part 21, an extension part 22 and a soldering foot part 23. The crystal-bonding part 21 is located in the above-mentioned reflective cup 111, the extending part 22 is embedded in the plastic base 10, and the soldering leg The part 23 is exposed outside the plastic base 10; the extension part 22 of the conductive pin 20 is recessed to form a 90-degree bending part 221, and the bending part 221 includes a vertical part 2211 and a vertical part connected to the lower end of the vertical part 2211. The horizontal part 2212, the vertical part 2211 is in contact with the above-mentioned crystal-fixing part 21, the height of the vertical part 2211 is 0.95mm, which is higher than the bending part of the traditional LED bracket, and after forming with the plastic base 10, the stability is stronger , the horizontal portion 2212 is vertically connected to the vertical portion 2211 ; the lower end of the welding foot portion 23 is bent and extended to be buckled in the accommodating groove 13 of the above-mentioned plastic base 10 .

The LED bracket is 2.80mm in length, 2.70mm in width, and 2.45mm in height, and the model number is 2727-72.

The key point of the design of this utility model is that by setting the extension part of the conductive pin as a structure that is vertically connected by the vertical part and the horizontal part, the stability of the conductive pin and the plastic base is better after mosaic molding; in addition, the reflective The inner wall of the cup is set in an arc shape. Compared with the inner wall of the traditional branch type reflective cup, the inner wall of the arc-shaped reflective cup is greatly improved in terms of contrast, light output and reliability, and can be used in high-end fields.

The above is only a preferred embodiment of the present utility model, and does not limit the technical scope of the present utility model in any way, so any minor modifications, equivalent changes and changes made to the above embodiments according to the technical essence of the present utility model Modifications still belong to the scope of the technical solution of the utility model.

Claims (7)

1. A new patch type LED bracket, comprising a plastic base and a plurality of conductive pins inlaid on the plastic base, the plastic base has a packaging cavity, and a reflective cup is formed in the packaging cavity; the conductive pins include: An integrally formed crystal-fixing part, an extension part and a welding foot part, the crystal-fixing part is located in the reflector cup, the extension part is embedded in the plastic base, and the welding leg part is exposed outside the plastic base, the feature is that the plastic base The inner wall of the reflector cup is arc-shaped; the extension part of the conductive pin is concaved to form a 90-degree bending part, which includes a vertical part and a horizontal part vertically connected to the lower end of the vertical part. The above-mentioned die-bonding portion is in contact with each other, and the lateral portion is in contact with the solder fillet portion. 2. The new SMD LED bracket according to claim 1, characterized in that: the plastic base is black as a whole. 3. The new chip-type LED bracket according to claim 1, wherein the plastic base is made of white plastic, and a black ink layer is coated on the outer wall of the plastic base. 4. The new patch-type LED bracket according to claim 1, characterized in that: the mouth of the reflective cup of the plastic base is provided with a step for better combination with the packaging plastic. 5. The new SMD LED bracket according to claim 1, characterized in that: the height of the vertical part is 0.95mm. 6. The new SMD LED bracket according to claim 1, characterized in that: the length of the LED bracket is 2.80mm, the width is 2.70mm, and the height is 2.45mm. 7. The new SMD LED bracket according to claim 1, characterized in that: the bottom of the plastic base is provided with an accommodating groove, and the lower end of the solder leg of the conductive pin is bent and extended to be buckled in the accommodating groove.