PLCC surface mounting structure of vehicle Led

Abstract

The utility model provides a PLCC surface mounting structure of a vehicle Led, which comprises a base, a plurality of pin pieces with the same structure are arranged in the base, a recess is arranged on the base, a PLCC packaging chip is fixed in the recess, a transparent layer and a reinforcing layer are filled in the recess, the reinforcing layer is arranged close to the inner side of the recess, and the reinforcing layer is arranged close to the inner side of the recess. The enhancement layer is made of transparent ABS resin, the pin piece is welded to the PLCC packaging chip, the lower end of the pin piece penetrates through the lower end of the base, the part, exceeding the lower end of the base, of the pin piece is bent towards the inner side of the base, a plurality of grooves are formed in the outer side, close to the leading-out end of the pin piece, of the lower end of the base, and the grooves are formed in the length direction of the edge of the base. The beneficial effects of the utility model are that the lower end of the pedestal is provided with a plurality of grooves, thereby increasing the plastic filling area between the pedestal and the circuit board, and providing the welding firmness; most of the pin pieces are arranged in the base, and a small part of the pin pieces are exposed outside, so that the pin pieces are protected; and the enhancement layer improves the strength of the chip and plays a role in protecting the chip.

Description

Technical Field

[0001] The utility model belongs to the technical field of Led surface-mounted lamps, and particularly relates to a PLCC surface-mounted structure for vehicle-mounted Led. Background Art

[0002] Miniature PLCC surface-mounted Led products are suitable for automotive interior and industrial lighting applications. At present, in the PLCC surface-mounted structure of vehicle-mounted Led, many pins are exposed in the air and not protected, and sometimes deformation occurs; the pins are not firmly welded to the circuit board, and sometimes looseness occurs; the chip at the upper side of the surface-mounted structure is vulnerable to external collision and damage. Summary of the Utility Model

[0003] Based on the problems in the above background, the purpose of the utility model is to provide a PLCC surface-mounted structure for vehicle-mounted Led, which plays a protective role for the pins, improves their strength, enhances the firmness of the welding part, and is particularly suitable for automotive interiors.

[0004] The technical solution of the utility model is: a PLCC surface-mounted structure for vehicle-mounted LED, including a base, in which a plurality of pin parts with the same structure are arranged. There is a depression on the base, and a PLCC packaged chip is fixed in the depression. A transparent layer and a reinforcement layer are filled in the depression. The reinforcement layer is arranged close to the inner side of the depression. The reinforcement layer is made of transparent ABS resin. The pin parts are welded to the PLCC packaged chip. The lower ends of the pin parts pass through the lower end of the base, and the parts exceeding the lower end of the base are bent towards the inner side of the base. A plurality of grooves are arranged on the outer side of the lead-out end of the pin part near the lower end of the base, and the grooves are arranged along the length direction of the edge of the base.

[0005] Further, the base is a plastic base.

[0006] Further, the pin part includes a welding part, a connecting part, and a lead-out end that are integrally connected in sequence. The welding part is welded to the PLCC packaged chip. The connecting part is arranged in the base, and the lead-out end is on the outer side of the lower end of the base.

[0007] Further, a buffer pad is arranged in the middle part of the lower end of the base, and ventilation holes are arranged on the buffer pad.

[0008] The utility model has the following advantages and positive effects: By adopting the above technical solution, a plurality of grooves arranged at the lower end of the base increase the plastic filling area between the base and the circuit board, providing firmness for its welding; most of the pin parts are in the base and a small part is exposed outside, playing a protective role for the pin parts; the reinforcement layer improves its strength and plays a protective role for the chip. Description of the Drawings

[0009] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0010] In the figure:

[0011] 1. Base 2. Pin component 3. Depression 4. PLCC package chip 5. Transparent layer 6. Reinforcement layer 7. Groove 8. Welding part 9. Connection part 10. Lead-out terminal. Specific embodiments

[0012] As Figure 1 shown, the technical solution of the present utility model is: a PLCC surface mount structure for vehicle-mounted LEDs, including a base 1, in which a plurality of pin components 2 with the same structure are provided. A recess 3 is provided on the base 1, and a PLCC packaged chip 4 is fixed in the recess 3. A transparent layer 5 and a reinforcing layer 6 are filled in the recess 3. The reinforcing layer 6 is arranged close to the inner side of the recess 3. The reinforcing layer is made of transparent ABS resin, which enhances the strength of the recess and prevents the chip from being damaged by external pressure.

[0013] The pin component 2 is welded to the PLCC packaged chip 4. The lower end of the pin component 2 passes through the lower end of the base 1, and the part exceeding the lower end of the base 1 is bent towards the inner side of the base 1. Most of the pin component 2 is inside the base 1, and the lower end lead-out end occupies a small part, reducing the occurrence of deformation at the lower end of the pin and protecting the pin. A plurality of grooves 7 are provided on the outer side of the lower end of the base 1 near the lead-out end of the pin component 2, and the grooves 7 are arranged along the length direction of the edge of the base 1. When welding the lead-out end of the pin component 2, the plastic filling area between the base 1 and the circuit board is increased in the grooves 7, providing its welding firmness.

[0014] In this embodiment, the base 1 is a plastic base.

[0015] In this embodiment, the pin component 2 includes a welding part 8, a connecting part 9, and a lead-out end 10 that are integrally connected in sequence. The welding part 8 is welded to the PLCC packaged chip 4. The connecting part 9 is arranged inside the base 1, and the lead-out, 10 is outside the lower end of the base 1.

[0016] In this embodiment, a buffer pad is provided in the middle part of the lower end of the base 1, and the buffer pad is provided with air holes, which plays a role in protecting the base when welding to the circuit board.

[0017] The working process and principle of this embodiment: When in use, after the pin component 2 is welded to the circuit board, the gap between the lower end of the base 1 and the circuit board is filled with plastic. More plastic is filled in the grooves 7, providing its firmness.

[0018] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. A PLCC surface mount structure of an automotive LED, characterized in that: The invention comprises a base, in which a plurality of pins with the same structure are arranged, a depression is arranged on the base, a PLCC packaged chip is fixed in the depression, a transparent layer and a reinforcing layer are filled in the depression, the reinforcing layer is arranged close to the inner side of the depression, the reinforcing layer is made of transparent ABS resin, the pins are welded to the PLCC packaged chip, the lower end of the pins passes through the lower end of the base, and the part exceeding the lower end of the base is bent toward the inner side of the base, a plurality of grooves are arranged on the outer side of the lead-out end of the base close to the pins, and the grooves are arranged along the length direction of the edge of the base.

2. The PLCC surface mount structure of a vehicle LED according to claim 1, characterized in that: The base is a plastic base.

3. The PLCC surface mount structure of a vehicle LED according to claim 1, characterized in that: The pin member comprises a welding portion, a connecting portion and a lead-out end which are connected in sequence and are integrally arranged. The welding portion is welded to the PLCC package chip, the connecting portion is arranged in the base, and the lead-out end is outside the lower end of the base.

4. The PLCC surface mount structure of a vehicle LED according to claim 1, characterized in that: A buffer pad is arranged in the middle part of the lower end of the base, and a ventilation hole is arranged on the buffer pad.

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