CN206291085U - A kind of lateral emitting optical fiber lighting device - Google Patents

Abstract

The utility model discloses a side luminous optical fiber lighting device, which comprises a lower shell with an inner cavity and an upper opening and an upper shell installed above the lower shell, a circuit board and a metal plate are installed in the closed cavity, and the metal plate The upper part is fastened with LED lamp beads, and the gap between the LED lamp beads and the metal plate is filled with heat-conducting medium. There are at least two joint holes on the side of the lower shell, and a joint is fixed through one of the joint holes and extended into the sealing The side-emitting optical fiber in the cavity, the side-emitting optical fiber and the LED lamp bead are optically coupled, and then the light is exported to the side-emitting optical fiber to form a line light source. This lighting device uses LED beads as a light source to couple with the side-emitting optical fiber, and transmits light through the side-emitting optical fiber as a line light source. The heat generated by the LED lamp bead is quickly exported through the upper shell through the metal plate, and the utility model is used in the field of lighting devices.

Description

A side-emitting optical fiber lighting device

technical field

The utility model relates to the field of lighting devices, in particular to a side-emitting optical fiber lighting device.

Background technique

At present, the LED light-emitting strips on the market are generally used for decoration, warning, outline outline, and lighting in indoor environments, outdoor environments, or underwater environments. At present, LED light-emitting strips are mainly composed of lamp beads and light strips. The installation of lamp beads in the light strip.

The current LED light-emitting strips have the following defects: 1), the LED light-emitting strips are point-emitting, which requires the use of more lamp beads, resulting in too strong luminous brightness, and excessive stimulation of the light-receiving object in terms of visual effects; 2), The energy consumption of the LED luminous strip is large; 3), the heat of the LED luminous strip is large and the environmental weather resistance is low; 4), the light source of the LED luminous strip is scattered, and the intelligent control is difficult.

A lighting device that generates a lot of heat usually needs a better heat dissipation base to dissipate heat, which is a shortcoming of the current LED lighting device.

Utility model content

The purpose of the utility model is to provide a side-emitting optical fiber lighting device with a light source and better heat dissipation effect.

The technical scheme that the utility model takes is:

A side-emitting optical fiber lighting device, comprising a lower casing with an internal cavity and an upper opening, and an upper casing installed above the lower casing to form a closed cavity. A circuit board is installed in the closed cavity and is close to the upper casing. And/or the metal plate provided on the lower shell, the metal plate is fastened with LED lamp beads, the heat conduction medium is filled between the LED lamp beads and the metal plate, and at least two joint holes are opened on the side of the lower shell, through which one The connector hole is provided with a side-emitting optical fiber fixed by an optical fiber fixing connector and extended into the closed cavity. After the optical coupling between the side-emitting optical fiber and the LED lamp bead, the light is exported to the side-emitting optical fiber to form a line light source. There are wiring harnesses connected to the circuit board for power supply and information exchange.

As a further improvement of the technical solution of the utility model, the upper part of the metal plate is fixedly connected to the upper casing, and slots are provided at both ends of the inner cavity in the lower casing, and the metal plate is inserted into the slot and fixed.

As a further improvement of the technical solution of the utility model, the circuit board is placed horizontally at the bottom of the inner cavity, the LED lamp beads are fixed against the metal plate, and the three driving pins of the LED lamp beads are inserted into the soldering holes on the circuit board for Fixed, the other three drive pins of the LED lamp bead are connected to the wire harness.

As a further improvement of the technical solution of the utility model, a number of heat dissipation fins distributed at equal intervals are provided on both sides of the upper casing.

As a further improvement of the technical solution of the present utility model, each cooling fin is vertically arranged at equal intervals.

As a further improvement of the technical solution of the utility model, the top of the lower casing is narrowed inwardly to form a convex step that can be embedded in the bottom of the upper casing, and fixed steps are formed on both sides of the bottom of the upper casing, and the upper casing and the lower casing The connections are fixed by screws.

As a further improvement of the technical solution of the utility model, horizontal plates extending outward are provided on both sides of the lower shell, and reinforcing ribs are connected between each horizontal plate and the lower shell, and each horizontal plate is provided with a plate for fixing the lower shell. round hole.

Beneficial effects of the utility model: the side-emitting optical fiber lighting device uses LED lamp beads as a light source to couple with the side-emitting optical fiber, and transmits light through the side-emitting optical fiber to form a line light source. A good metal thermal connection is formed between the bodies, and the heat generated by the LED lamp beads can be quickly exported through the metal plate and the upper shell.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the explosion schematic diagram of the overall structure of the embodiment of the utility model;

Fig. 2 is a schematic diagram of the structure of the embodiment of the utility model after the installation is completed.

detailed description

Referring to Fig. 1 and Fig. 2, the utility model is a side-emitting optical fiber lighting device, which includes a lower housing 1 with an internal cavity and an upper opening and an upper housing 2 installed above the lower housing 1 to form a closed cavity , the circuit board 3 and the metal plate 4 arranged close to the upper shell 2 and/or the lower shell 1 are installed in the closed cavity, the LED lamp beads 5 are fastened on the metal plate 4, and the gap between the LED lamp beads 5 and the metal plate 4 Filled with a heat-conducting medium, the side of the lower housing 1 is provided with at least two joint holes, and through one of the joint holes is provided a side-emitting optical fiber 6 fixed by a harness fixing joint 61 and extending into the closed cavity, the side-emitting optical fiber 6 and After the LED lamp bead 5 is optically coupled, the light is exported to the side-emitting optical fiber 6 to form a line light source, and a wire harness 7 connected to the circuit board 3 is provided through another joint hole for power supply and information exchange.

In this side-emitting optical fiber lighting device, the LED lamp bead 5 is used as a light source to couple with the side-emitting optical fiber 6, and the light is transmitted through the side-emitting optical fiber 6 to form a line light source. A good metal heat-conducting connection is formed between the two, and the heat generated by the LED lamp bead 5 can be quickly exported through the metal plate 4 and the upper casing 2 .

As a preferred embodiment of the present utility model, the upper part of the metal plate 4 is fixedly connected with the upper housing 2, and the lower housing 1 is provided with slots 11 at both ends of the inner cavity, and the metal plate 4 is inserted into the slot 11. fixed.

As a preferred embodiment of the present invention, the circuit board 3 is horizontally placed at the bottom of the inner cavity, the LED lamp bead 5 is fixed against the metal plate 4, and the three driving pins of the LED lamp bead 5 extend into the solder joints on the circuit board 3 The other three driving pins of the LED lamp bead 5 are connected to the wiring harness 7.

As a preferred embodiment of the present invention, the two sides of the upper casing 2 are provided with a plurality of heat dissipation fins 21 distributed at equal intervals.

As a preferred embodiment of the present invention, each cooling fin 21 is vertically arranged at equal intervals.

As a preferred embodiment of the present utility model, the top of the lower housing 1 is narrowed inwardly to form a convex step 12 that can be embedded in the bottom of the upper housing 2, and the two sides of the bottom of the upper housing 2 form fixed steps. The upper housing 2 It is fixedly connected with the lower case 1 by screws.

As a preferred embodiment of the present utility model, both sides of the lower casing 1 are provided with horizontal plates extending outward, each horizontal plate is connected with the lower casing 1 with reinforcing ribs, and each horizontal plate is provided with a frame for fixing the lower casing. The round hole of body 1.

This side-emitting optical fiber lighting device couples the optical fiber generated by the LED lamp bead 5 through the side-emitting optical fiber 6 to form a line light source for lighting, and can generate a line light source with a larger lighting range by discussing the light emission of the LED lamp bead 5, which is beneficial to energy saving. And there will be no single bright spot light that is too strong to cause excessive stimulation of the light-receiving object.

Because the heat generated by the LED lamp bead 5 as the light source is too large, in this device, the LED lamp bead 5 is fixed close to the metal plate 4, and a heat-conducting medium is filled between the LED lamp bead 5 and the metal plate 4, which can quickly dissipate the heat. The heat generated by the LED lamp bead 5 is diffused by the metal plate 4, and then diffused by the lower shell 1 and the upper shell 2 that are closely connected with the metal plate 4, and at the same time, it is dissipated by a number of cooling fins 21 provided on the top of the upper shell 2. Heat dissipation.

The heat dissipation fins 21 are arranged vertically and spaced apart from each other on the top of the upper housing 2, which is very suitable for the propagation route of the heat generated by the LED lamp bead 5 in the lighting device, and can greatly improve the heat dissipation efficiency.

Between the upper case 2 and the lower case 1, the top of the lower case 1 is narrowed to form a convex step 12 embedded in the bottom of the upper case 2, and the convex step 12 is embedded in the fixed step at the bottom of the upper case 2 to realize The fixed connection between the upper shell 2 and the lower shell 1 can form a closed cavity, ensuring stable connection and good thermal conductivity of the closed cavity.

The side light-emitting optical fiber 6 is installed on the joint hole on the lower housing 1 through the wire harness fixing joint 61, and the wire harness 7 is fixed on another joint hole on the lower housing 1 through the wire harness fixing joint 71, and passes through the joint hole and the inside of the closed cavity. The LED lamp beads 5 are connected to realize power supply and information exchange of the circuit board 3 .

The wiring harness fixing joint 71 fixes the wiring harness 7, and the waterproof effect can be realized through the wiring harness 7 and the flexible rubber sleeve filled in the wiring harness fixing joint 71.

Certainly, the invention of the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can also make equivalent modifications or replacements without violating the spirit of the utility model. within the bounds of the requirements.

Claims (7)

1. A side luminous fiber optic lighting device, characterized in that: it comprises a lower housing with an internal cavity and an upper opening and an upper housing that is installed above the lower housing to form a closed cavity, and the closed cavity The body is installed with a circuit board and a metal plate that is placed close to the upper shell and/or the lower shell, and the LED light beads are fastened on the metal plate, and a heat-conducting medium is filled between the LED light beads and the metal plate. There are at least two joint holes on the side of the lower housing, through which one of the joint holes is provided with a side-emitting optical fiber that is fixed by an optical fiber fixing joint and extends into the closed cavity, and the side-emitting optical fiber and the LED lamp bead perform light After coupling, the light is exported to the side-emitting optical fiber to form a line light source, and a wire harness connected to the circuit board is provided through the other connector hole for power supply and information exchange. 2. The side emitting optical fiber lighting device according to claim 1, characterized in that: the upper part of the metal plate is fixedly connected with the upper casing, and slots are provided at both ends of the inner cavity in the lower casing , the metal plate is inserted into the slot and fixed. 3. The side emitting optical fiber lighting device according to claim 1, characterized in that: the circuit board is placed horizontally at the bottom of the inner cavity, the LED lamp beads are fixed against the metal plate, and the three LED lamp beads The first driving pin is extended into the soldering hole on the circuit board for fixing, and the other three driving pins of the LED lamp bead are connected to the wiring harness. 4. The side emitting optical fiber illuminating device according to claim 1, characterized in that: two sides of the upper housing are provided with a plurality of heat dissipation fins distributed at equal intervals. 5 . The side emitting optical fiber lighting device according to claim 4 , wherein the cooling fins are vertically arranged at equal intervals. 6 . 6. The side emitting optical fiber lighting device according to claim 5, characterized in that: the top of the lower casing narrows inwardly to form a convex step that can be embedded in the bottom of the upper casing, and the bottom of the upper casing Fixed steps are formed on both sides, and the upper shell and the lower shell are fixedly connected by screws. 7. The side emitting optical fiber lighting device according to claim 1, characterized in that: both sides of the lower casing are provided with horizontal plates extending outward, and reinforcing ribs are connected between each of the horizontal plates and the lower casing , each of the horizontal plates is provided with a round hole for fixing the lower shell.