Surface-mounted LED for vehicle-mounted backlight illumination

Abstract

The utility model provides a vehicle-mounted backlight illumination surface mount LED including a housing, a support, a light emitting wafer and a plurality of pins, the support is arranged in the housing, the support is connected with the plurality of pins, the pins pass through the left and right side walls of the housing and are arranged outside the housing, the front wall of the housing is provided with a round hole, the housing is internally provided with a guide cavity, and the guide cavity is provided with a light emitting chip. A circular hole is formed in the casing, a guide cavity is formed in the casing, the front end of the guide cavity is communicated with the circular hole, the guide cavity is arranged in front of the light-emitting wafer, the rear side of the casing is connected with a heat dissipation substrate, the light-emitting wafer is arranged on the support through wafer fixing glue, the guide cavity is filled with frosted surface glue, and a sealing waterproof ring is arranged between the circular hole and the guide cavity. The beneficial effects of the utility model are that under the effect of the heat dissipation substrate, conduction heat dissipation can be carried out in the housing; the frosted surface colloid is adopted, so that light reflection is reduced, and the comfort level of people is improved; and the waterproof ring plays a role in preventing moisture, and plays a role in protecting the wafer.

Description

Technical Field

[0001] The utility model belongs to the technical field of LEDs, and particularly refers to a surface-mounted LED for vehicle backlight illumination. Background Art

[0002] With the development of the automotive industry, vehicle-mounted LED lights are not only lighting or indicating components of the vehicle, but also the finishing touch in the overall vehicle design. When vehicle backlight illumination LEDs are applied to displays, the heat dissipation effect is poor, reducing their performance; there is a problem of light reflection, and sometimes moisture enters through the connection between the surface colloid and the bracket, affecting normal use. Summary of the Utility Model

[0003] Based on the problems in the above background, the purpose of the utility model is to provide a surface-mounted LED for vehicle backlight illumination, which improves the heat dissipation effect, effectively solves the problem of light reflection, and improves its moisture resistance.

[0004] The technical solution of the utility model is: a surface-mounted LED for vehicle backlight illumination, including a housing, a bracket, a light-emitting chip, and a plurality of pins. The housing is provided with a bracket inside, the bracket is connected to the plurality of pins, the pins pass through the left and right side walls of the housing and are arranged outside the housing. There is a round hole on the front wall of the housing, a guiding cavity is provided inside the housing, and the front end of the guiding cavity is connected to the round hole. The guiding cavity is arranged in front of the light-emitting chip. A heat dissipation substrate is connected to the rear side of the housing. The light-emitting chip is arranged on the bracket through die bonding glue. The guiding cavity is filled with a frosted surface colloid, and a sealing waterproof ring is arranged between the round hole and the guiding cavity.

[0005] Further, the heat dissipation substrate can be a metal aluminum plate or a copper plate with good heat conduction effect, or a heat pipe with better heat dissipation effect can also be used.

[0006] Further, the inner end of the guiding cavity is attached to the bracket, and the cross-section of the guiding cavity is trapezoidal. The diameter of the guiding cavity near the port of the light-emitting chip is smaller than the diameter near the port of the round hole.

[0007] Further, a gold wire connects the surface electrode of the light-emitting chip to the bracket.

[0008] The advantages and positive effects of the utility model are: by adopting the above technical solution, under the action of the heat dissipation substrate, heat conduction and dissipation can be carried out inside the housing; by using the frosted surface colloid, the occurrence of light reflection is reduced, improving people's comfort; the waterproof ring plays a moisture-proof role and protects the chip. Brief Description of the Drawings

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

[0010] In the figure:

[0011] 1. Housing 2. Bracket 3. Light-emitting chip

[0012] 4. Pin 5. Guide cavity 6. Frosted surface colloid

[0013] 7. Sealing waterproof ring. Specific implementation manner

[0014] As Figure 1 shown, the technical solution of the present utility model is: A surface-mounted Led for vehicle backlight illumination, comprising a housing 1, a bracket 2, a light-emitting chip 3 and a plurality of pins 4. A bracket 2 is provided inside the housing 1, and the bracket 2 is connected to the plurality of pins 4. The pins 4 pass through the left and right side walls of the housing 1 and are provided outside the housing 1. A round hole is provided on the front wall of the housing 1. A guide cavity 5 is provided inside the housing, and the front end of the guide cavity 5 is connected to the round hole. The guide cavity 5 is provided in front of the light-emitting chip 3. A heat dissipation substrate is connected to the rear side of the housing 1. The light-emitting chip 3 is provided on the bracket 2 through die bonding glue. The guide cavity 5 is filled with a frosted surface colloid 6. When light irradiates on the frosted surface colloid 6, diffuse reflection will be formed, and the human eye will not reflect light in terms of light perception, fundamentally solving the problem of light reflection. A sealing waterproof ring 7 is provided between the round hole and the guide cavity 5, which plays a moisture-proof role and protects the light-emitting chip.

[0015] In this embodiment, the heat dissipation substrate can adopt a metal aluminum plate or copper plate with good heat conduction effect, or a heat pipe with better heat dissipation effect.

[0016] In this embodiment, the inner end of the guide cavity 5 is attached to the bracket, and the cross-section of the guide cavity 5 is trapezoidal. The diameter of the guide cavity 5 near the port of the light-emitting chip 3 is smaller than the diameter near the port of the round hole.

[0017] In this embodiment, a gold wire connects the surface electrode of the light-emitting chip 3 to the bracket 2.

[0018] The working process and principle of this embodiment: The frosted surface colloid 6 is located in front of the light-emitting chip 3, which well solves the problem of light reflection; at the same time, the waterproof ring 7 plays a protective role for the chip.

[0019] The above has described a detailed description of an embodiment of the present utility model, but the content described is only a preferred embodiment of the present utility model and cannot be considered as limiting the implementation scope of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model should still fall within the scope covered by the patent of the present utility model.

Claims

1. A surface-mounted LED for vehicle backlight illumination, characterized in that: It includes a housing, a bracket, a light-emitting chip and a plurality of pins. A bracket is provided inside the housing, and the bracket is connected to the plurality of pins. The pins pass through the left and right side walls of the housing and are provided outside the housing. A round hole is provided in the front wall of the housing. A guiding cavity is provided inside the housing, and the front end of the guiding cavity is connected to the round hole. The guiding cavity is provided in front of the light-emitting chip. A heat dissipation substrate is connected to the rear side of the housing. The light-emitting chip is provided on the bracket through die bonding glue. The guiding cavity is filled with a frosted surface colloid. A sealing waterproof ring is provided between the round hole and the guiding cavity.

2. The surface-mounted LED for vehicle backlight illumination according to claim 1, characterized in that: The heat dissipation substrate is a metal aluminum plate or a copper plate.

3. The surface-mounted LED for vehicle backlight illumination according to claim 1, wherein: The inner end of the guiding cavity is attached to the bracket, and the cross-section of the guiding cavity is trapezoidal. The diameter of the guiding cavity near the port of the light-emitting chip is smaller than the diameter near the port of the round hole.

4. The surface-mounted LED for vehicle backlight illumination according to claim 1, wherein: A gold wire connects the surface electrode of the light-emitting chip to the bracket.

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