CN110778984A - LED assembly and low-cost space-saving curve signal lamp - Google Patents

Abstract

The invention relates to an LED assembly and a low-cost space-saving curve signal lamp, wherein the LED assembly comprises a silica gel strip, an LED and a circuit board, the LED and the circuit board are arranged in the silica gel strip, the low-cost space-saving curve signal lamp comprises a light transmitting piece and an LED assembly, and a light emitting surface of the LED assembly is attached and fixed on a light incident surface of the light transmitting piece along with the shape. The invention can adapt to the free curve modeling of the lamp, realizes independent 3D sculpture feeling and linear car lamp appearance, shows the individuation of car lamp design, and has the advantages of small space occupation, convenient assembly and replacement, good luminous uniformity and the like.

Description

LED assembly and low-cost space-saving curved signal lights

technical field

The invention relates to an LED light source and a signal lamp using the light source, which can adapt to the free-curve shape of the lamp, and is mainly used for the automobile lamp to realize the function of the signal lamp.

Background technique

As shown in FIG. 1 , the signal light function of the existing automobile lamps is generally realized by an LED light source 1 plus an optical system 2 . For the LED light source, a circuit board 3 is generally required to support and install, and a control module 4 is required to make it work. These components all require their own assembly space in the lamps, and the assembly line of each lamp must set up an assembly link for it.

As the shape of signal lights is becoming more and more refined, such as slender strips, the assembly space becomes smaller, the shape often requires a certain free curve design, and there are also requirements for uniformity of light emission. It cannot meet the requirements of refinement and refinement and uniform light emission at the same time.

SUMMARY OF THE INVENTION

The invention aims to provide an LED assembly and a low-cost and space-saving curved signal lamp, which can adapt to the free curve shape of the lamp, and has the advantages of small space occupation, convenient assembly and replacement, and the like.

The main technical solutions of the present invention include:

An LED assembly includes a silicone strip, an LED and a circuit board built into the silicone strip.

There are multiple LEDs, which are arranged at intervals along the length direction of the silicone strip.

The circuit board adopts a flexible FR4 circuit board or a flexible FPC circuit board.

Components on the circuit board include components for controlling and protecting the LEDs.

A low-cost and space-saving curved signal lamp comprises a light-transmitting member and the LED assembly, and the light-emitting surface of the LED assembly is conformally fitted and fixed on the light-incident surface of the light-transmitting member.

The light-transmitting member is provided with a U-shaped groove, and the bottom surface of the groove of the U-shaped groove is the light-incident surface of the light-transmitting member. The two long sides are extended, and the LED assembly is integrally embedded in the groove.

One of the light-transmitting member and the LED assembly is provided with a plurality of grooves, and the other is provided with a plurality of protrusions, and the protrusions and the grooves are inserted one-to-one to realize the LED relative to the light-transmitting member. fixed.

The width of the light-emitting surface of the LED assembly is consistent with the width of the light-emitting feature surface of the light-incident surface of the light-transmitting member.

The lamp cavity of the low-cost and space-saving curved signal lamp may not be provided with a radiator dedicated to heat dissipation of the LED.

The beneficial effects of the present invention are:

Due to the use of silica gel as the carrier of the LED and the circuit board and the packaging material of the LED assembly, the LED assembly is flexible and can adapt to the application of space free-curve shape design, realizing an independent 3D sculpture sense, linear lamp shape, cutting into the traditional The areas that the lights cannot reach, highlight the personalization of the design of the lights.

Since the silica gel has a diffusing effect on light, the uniformity of the light emitted by the LED assembly is good. Since the circuit traces are embedded in the silicone, the silicone has a protective effect on it.

Since the components on the circuit board include components for controlling and protecting the LEDs, an additional independent control module is no longer required.

Since the heat generation of the LED assembly is evenly distributed, there is no need to provide a heat sink for heat dissipation, so the cost can be reduced.

Since both the LED and the circuit board are embedded in the light-guiding silica gel to form a photoelectric and thermal integrated light source component, when applied to lamps, the assembly space and assembly links of the circuit board and the control module can be reduced, which is convenient for assembly and replacement, and also reduces the It avoids the lack of energy collection caused by the necessary assembly gap between the LED and the slender feature optical system, and it is no longer necessary to design the circuit board independently for each project, and only need to match according to the length of the lamp shape.

Description of drawings

1 is a schematic diagram of the structure and assembly method of an existing automobile lamp;

FIG. 2 is a schematic structural diagram of an embodiment of the signal lamp of the present invention (only a part of the LED assembly is shown);

FIG. 3 is a B-B cross-sectional view of FIG. 2 .

Detailed ways

As shown in FIGS. 2 and 3 , the present invention discloses an LED assembly 5 , which includes a silicone strip, LEDs and circuit boards built into the silicone strip. Silicone is used as the carrier of LED and circuit board and the packaging material of LED assembly, which makes the LED assembly flexible and can adapt to the application of space free curve design, realize independent 3D sculpture sense, linear lamp shape, cut into traditional lamp Inaccessible areas, highlight the personalization of the light design.

The light-emitting surface of the LED faces a large surface of the silicone strip, which is the front of the silicone strip, and the circuit board is close to the back of the silicone strip. The front surface of the silicone strip is also the light-emitting surface of the LED assembly.

Since the silica gel has a diffusing effect on light, the uniformity of the light emitted by the LED assembly is good. Since the circuit traces are embedded in the silicone, the silicone has a protective effect on it.

There are a plurality of the LEDs, and they are arranged at intervals along the length direction of the silicone strip. Similarly, other components on the circuit board are also dispersed along the length of the silicone strip, so the heat generated by the LED assembly is dispersed and uniform along the length, so the radiator necessary for traditional signal lamps can be omitted.

The main heating elements on the circuit board are installed at the back of the circuit board, so that the heat of the circuit board is mainly concentrated at the back of the circuit board, and there is less contact area with the silicone strip, so the performance of the silicone strip itself is also less affected.

The circuit board is preferably a flexible FR4 circuit board or a flexible FPC circuit board, so even the silicone strip after the circuit board is integrated can still maintain good flexibility, so different shapes can be realized in a flexible way. The modeling difficulty is obviously reduced, the layout of the related structures is not required, and the layout space of the related structures is also saved.

The components on the circuit board include components for controlling and protecting the LEDs, so there is no need to additionally set up an independent control module, and there is no need to consider the issues of installation and heat generation of the control module.

The LED assembly can be made into strip-shaped structures of various lengths as required. When the LED assembly is used for a signal light, it is only necessary to match the corresponding LED assembly according to the modeling length, so that the design of the signal light is more flexible and the manufacturing is simpler.

When making the LED assembly, the LED and the circuit board are fixed first, and then the glue is encapsulated.

The LED assembly is a photoelectric and thermal integrated light source component. When applied to lamps, it can reduce the assembly space and assembly links of circuit boards and control modules compared to traditional signal lamps, which is convenient for assembly and replacement, and also reduces the number of LEDs. Insufficient energy collection occurs due to the necessary assembly gap between the optical system and the slender feature optical system, and it is no longer necessary to design the circuit board independently for each project. It only needs to be matched according to the length of the lamp shape.

The present invention also discloses a low-cost and space-saving curved signal lamp, comprising a light-transmitting member 6 and the LED assembly 5, and the light-emitting surface of the LED assembly is conformally fitted and fixed to the incoming light of the light-transmitting member. face. The light-transmitting member adopts a spatial curve shape, as long as the length and width of the light-emitting surface of the LED assembly can match the light-incident surface of the light-transmitting member. Since the LED assembly can be bent in both directions towards the front and back of the silicone strip, it can freely follow the bending trend of the light-incident surface of the light-transmitting part and be fixed to the light-incident surface of the light-transmitting part, reducing the number of LEDs. Insufficient energy collection occurs due to the necessary assembly gap between the optical system and the slender feature optical system, so that the light incident surface of the light-transmitting part can collect the light emitted by the LED assembly in the largest proportion, so that the designed light-emitting area between the light-transmitting parts can be collected. All glow evenly.

In order to match the elongated light-transmitting member 6, the LED assembly is also made into an elongated shape, and the length of the LED assembly used for matching is equivalent to the length of the light-emitting feature of the light-transmitting member. Only the LED assembly is shown in FIG. 2 . a small part of.

A groove can be provided on the light-transmitting member, and the LED assembly can be fixed relative to the light-transmitting member by being embedded in the groove.

In the embodiment shown in FIG. 3 , the light-transmitting member is provided with a U-shaped groove, and the bottom surface of the groove of the U-shaped groove is the light incident surface of the light-transmitting member. The two long sides of the light incident surface of the light-transmitting member are extended and arranged, and the LED assembly is integrally embedded in the groove.

In addition, the fixing method between the light-transmitting member and the LED assembly may also be as follows: one of the light-transmitting member and the LED assembly is provided with a plurality of grooves, and the other is provided with a plurality of protrusions, so as to The one-to-one plugging of the protrusion and the groove realizes the fixing of the LED relative to the light-transmitting member.

Since the heat generated by the LED and the circuit board is evenly dispersed, the purpose of arranging a radiator in the traditional signal lamp has been achieved. Therefore, the low-cost and space-saving curved signal lamp preferably does not have a radiator in the lamp cavity, thereby reducing the cost of the signal lamp.

The width of the light-emitting surface of the LED assembly is preferably made to be consistent with the width of the light-emitting feature surface of the light-incident surface of the light-transmitting member, so that there is no light leakage, and all the outgoing light of the LED assembly is fully utilized.

Claims (10)

1. An LED assembly, characterized in that it comprises a silicone strip, an LED and a circuit board built into the silicone strip. 2 . The LED assembly of claim 1 , wherein there are multiple LEDs, which are arranged at intervals along the length direction of the silicone strip. 3 . 3. The LED assembly of claim 1, wherein the circuit board is a flexible FR4 circuit board or a flexible FPC circuit board. 4. The LED assembly according to claim 1, 2 or 3, wherein the components on the circuit board include components for controlling and protecting the LEDs. 5 . The LED assembly of claim 4 , wherein the LED and the circuit board are fixed first and then encapsulated. 6 . 6. A low-cost and space-saving curved signal lamp, characterized in that it comprises a light-transmitting member and the LED assembly according to claim 1, 2, 3, 4 or 5, and the light-emitting surface of the LED assembly conforms to the shape. and fixed on the light incident surface of the light-transmitting member. 7 . The low-cost and space-saving curved signal lamp according to claim 6 , wherein a U-shaped groove is provided on the light-transmitting member, and the bottom surface of the groove of the U-shaped groove is the light incident surface of the light-transmitting member. 8 . , the groove walls on both sides of the U-shaped groove are respectively extended along the two long sides of the light incident surface of the light-transmitting member, and the LED assembly is integrally embedded in the groove. 8. The low-cost and space-saving curved signal lamp of claim 6, wherein one of the light-transmitting member and the LED assembly is provided with a plurality of grooves, and the other is provided with a plurality of protrusions, so as to The one-to-one plugging of the protrusion and the groove realizes the fixing of the LED relative to the light-transmitting member. 9 . The low-cost and space-saving curved signal lamp of claim 6 , wherein the width of the light-emitting surface of the LED assembly is consistent with the width of the light-emitting feature surface of the light-incident surface of the light-transmitting member. 10 . 10. The low-cost and space-saving curved signal lamp as claimed in claim 6, 7, 8 or 9, characterized in that no radiator is arranged in the lamp cavity.

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