CN208185936U - A light source structure with a wide light emitting surface - Google Patents

Abstract

The utility model discloses a wide light source structure of light-emitting surface, on the mountable lamps and lanterns, which comprises a substrate, L ED chip, fluorescent layer, L ED chip is fixed on the base plate through a support, is equipped with the light source chamber that is used for holding L ED chip on the support, still is equipped with the annular groove on the support, and light source structure is still including fixing on the annular groove and the printing opacity cover of lid on L ED chip, the utility model discloses the lower extreme shape of face of printing opacity cover forms a cavity of covering on L ED chip, and the cavity shape is similar to bullet shape, and the concave cavity that is the obconical that is equipped with of printing opacity cover up end simultaneously, and the cavity makes the printing opacity cover be concave lens setting with the reasonable setting of cavity, and L ED chip outwards penetrates directly after the light takes place the skew through concave lens, and light is dispersed, and the light beam widen, therefore light becomes even soft, and has enlarged illumination angle and increase light irradiation range, satisfies wide angle lighting demand, and economic environmental protection, the utility model discloses a light source.

Description

A light source structure with a wide light emitting surface

technical field

The utility model relates to the technical field of LED lighting, in particular to a light source structure with a wide light emitting surface.

Background technique

Lamps are indispensable lighting appliances, and various lamps are widely distributed in various areas. With the improvement of people's living standards, the requirements for lamps are getting higher and higher, and LED lamps with advantages such as energy saving, environmental protection, and high light efficiency are gradually welcomed by consumers. Existing LED lamps generally use a light source structure on the lamp panel as a lighting source. The light source structure generally includes a substrate and an LED chip arranged on the substrate. The LED chip is packaged on the substrate with fluorescent glue. In order to protect the LED chip, the traditional structure will On the fluorescent layer, a transparent waterproof adhesive layer is formed by a dispensing machine. Uneven distribution, narrow luminous range, small light emitting surface of LED light source structure, excessive concentration of light intensity distribution, causing light spots on the ground, and easy to generate glare to make people feel dizzy. Cover, the existing light-transmitting cover is integrally formed on the LED chip by an injection molding machine. Due to the limitation of the process, the lower end surface of the light-transmitting cover is closely attached to the LED chip. Although the light is dispersed to a certain extent, the light will still be compact and concentrated. At the center position, the light intensity around the center is relatively weak. If large-angle lighting is required, the number of light source structures can only be increased to meet the lighting requirements. It is rigid and single, lacks novelty, and is difficult to meet the different requirements of different places and different users.

Therefore, how to solve the existing technical problems is an urgent technical problem in the industry.

Contents of the invention

The main purpose of the utility model is to provide a light source structure with a wide light emitting surface, aiming to realize a light source structure with reasonable structural design, strong practicability, wide light emitting surface, high light utilization rate and good lighting effect.

The utility model proposes a light source structure with a wide light-emitting surface, which can be installed on a lamp, including a substrate, an LED chip arranged on the substrate, and a fluorescent layer covering the LED chip. The LED chip is fixed on the substrate through a bracket. There is a light source cavity for accommodating LED chips, and an annular groove is also provided on the bracket. The light source structure also includes a light-transmitting cover fixed on the ring-shaped groove and covered on the LED chip. The lower end surface of the light-transmitting cover is evenly arranged in a ring There are a number of first annular light-reflecting grooves with a V-shaped cross section, and a cavity on the LED chip is formed on the lower end surface of the light-transmitting cover corresponding to the position of the LED chip.

Preferably, the light-transmitting cover is made of a light-transmitting diffusion material.

Preferably, a plurality of second annular light-reflecting grooves with a V-shaped cross-section are evenly arranged in a ring on the side wall of the cavity.

Preferably, the cross-sectional shape of the light-transmitting cover is set as an oblate circular truncated shape.

Preferably, an inverted conical cavity is recessed toward the direction of the LED chip at the center of the upper end surface of the light-transmitting cover.

Preferably, the conductive pins led out from the LED chip pass through the bracket and are electrically connected to the substrate.

Preferably, the bracket is made of insulating material.

Preferably, the transparent cover is fixed on the annular groove by bonding.

Preferably, the transparent cover is set to be transparent or frosted.

Preferably, the shape of the cavity is conical.

The light source structure of the utility model can be installed on a lamp for large-angle lighting and used as a lighting source to realize large-angle lighting, which is practical and convenient. The light source structure includes a substrate, an LED chip on the substrate, and a fluorescent layer covering the LED chip. , the LED chip is fixed on the substrate through a bracket. The light source structure of the utility model also includes a light-transmitting cover fixed on the bracket and covering the LED chip, the lower end surface of the light-transmitting cover forms a cavity covering the LED chip at a position corresponding to the position of the LED chip, and the cavity It is set in a conical shape, similar to the shape of a bullet. At the same time, an inverted conical cavity is recessed at the center of the upper end surface of the light-transmitting cover toward the LED chip. The reasonable setting of the cavity and the cavity makes the light-transmitting cover look like Concave lens setting, the parallel light rays directed outward from the LED chip are deflected by the concave lens, and the light is diverged. The purpose of anti-glare, and the point light source is converted into a surface light source, which expands the irradiation angle and increases the light irradiation range. The angle can be from 160° to 180°, the light output area is wide, and it can meet the needs of large-angle lighting. It can achieve the purpose of wide-range lighting without adding additional lamps. It is economical and environmentally friendly, practical and convenient, with high light utilization rate, good lighting effect, and reasonable structural design. , novel in shape, with good social and economic benefits, it is worthy of widespread promotion and application.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of a light source structure with a wide light emitting surface of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of a light-transmitting cover in an embodiment of a light source structure with a wide light-emitting surface of the present invention;

Fig. 3 is a schematic perspective view of an embodiment of a light source structure with a wide light emitting surface of the present invention, wherein the light transmission cover is not shown.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to Figures 1 to 3, an embodiment of a light source structure with a wide light emitting surface of the present invention is proposed, which can be installed on a lamp for large-angle lighting, including a substrate 100, an LED chip 200 disposed on the substrate 100, and a cover In the fluorescent layer on the LED chip 200, the LED chip 200 is fixed on the substrate 100 through a bracket 300, and the bracket 300 is made of insulating material with good insulation performance and high safety performance. The bracket 300 is provided with a light source cavity 302 for accommodating the LED chip 200, and the LED chip 200 is encapsulated in the light source cavity 302 through a fluorescent layer. In this embodiment, the conductive pins led out from the LED chip 200 pass through the bracket 300 and are electrically connected to the substrate 100 .

The bracket 300 is also provided with an annular groove 301, and the light source structure also includes a light-transmitting cover 400 fixed on the annular groove 301 and covering the LED chip 200. The light-transmitting cover 400 is made of a light-transmitting diffusion material, which Optical, and has the function of mixing light and anti-glare. The cross-sectional shape of the light-transmitting cover 400 is set as a flat truncated cone, and the outer wall of the light-transmitting cover 400 is set as a smooth curved surface. The light-transmitting cover 400 is fixed on the annular groove 301 by bonding, and the annular groove 301 has a position-limiting effect on the light-transmitting cover 400, and at the same time has a fast positioning effect on the fixing of the light-transmitting cover 400, improving the assembly efficiency of the light source structure, The production cycle is shortened, the production cost is reduced, and the displacement of the translucent cover 400 is avoided to ensure the lighting effect of the light source structure. The structure is simple, and the design is reasonable and practical.

The lower end surface of the light-transmitting cover 400 of the utility model forms a cavity 402 covering the LED chip 200 at the position corresponding to the position of the LED chip 200. The shape of the cavity 402 is conical, that is, the shape of the cavity 402 The shape of the bullet head is set, the cavity 402 is set in a non-vacuum state, and the light irradiated upwards by the LED chip 200 will be refracted when passing through the cavity 402, and the light will also be refracted when passing through the side wall of the cavity 402 which is set in the shape of a bullet head In addition, an inverted conical concave cavity 404 is recessed toward the direction of the LED chip 200 at the center of the upper end surface of the light-transmitting cover 400, and the concave cavity 404 is concave toward the direction of the cavity 402. It is apple-shaped, and the concave cavity 404 and the cavity 402 are arranged on the upper end surface and the lower end surface of the light-transmitting cover 400, so that the light-transmitting cover 400 covering the LED chip 200 is set as a concave lens, and the LED chip 200 is irradiated concentratedly upward. The light passes through the light-transmitting cover 400 and is deflected multiple times, and the light diverges. After the light passing through the light-transmitting cover 400 diverges, the beam becomes wider, so the light becomes uniform and soft, and the visual effect is excellent, achieving the control of light beam and anti-glare The purpose is to make the brightness of the effective lighting range more uniform and eliminate light pollution. At the same time, after the light passing through the light-transmitting cover 400 diverges, the light beam becomes wider, and the point light source is transformed into a surface light source, which expands the irradiation angle and increases the light irradiation range. The phenomenon in the area, the surrounding light is enhanced, the lighting angle can reach 160 degrees to 180 degrees, and the light coverage area is large. The lamps installed with the light source structure of the utility model can meet the large-angle lighting requirements, and can achieve large-scale lighting without additional lamps Purpose, economy and environmental protection, practical and convenient.

Moreover, the lower end surface of the light-transmitting cover 400 is uniformly arranged with a plurality of first annular reflective grooves 401 in a V-shaped section, and the side wall of the cavity 402 is evenly arranged with a plurality of second annular reflective grooves 403 in a V-shaped section. , the first annular reflective groove 401 and the second annular reflective groove 403 have a reflective effect, and their reasonable setting can effectively reflect the deflected or direct light outward, avoid light pollution, concentrate the effective light into the effective irradiation range, and enhance the illumination Intensity, improve light efficiency and light utilization rate, even a low-power light source structure can achieve high-brightness lighting effects, economical and practical, and good lighting effects; in addition, the setting of the first annular reflective groove 401 is also conducive to the fixing of the light-transmitting cover 400 In the annular groove 301, the connection strength between the transparent cover 400 and the annular groove 301 is enhanced, the service life of the light source structure is prolonged, the design is reasonable, and the structure is novel and unique.

In this embodiment, the transparent cover 400 can be set to be transparent or frosted.

In summary, the light source structure of the present utility model can be installed on a lamp for large-angle lighting as a lighting source to realize large-angle lighting, wherein the lower end surface of the light-transmitting cover 400 forms a cover at the position corresponding to the position of the LED chip 200 The cavity 402 provided on the LED chip 200 is set in a conical shape, similar to the shape of a bullet, and the center position of the upper end surface of the light-transmitting cover 400 is recessed toward the direction of the LED chip 200. The concave cavity 404, the reasonable setting of the concave cavity 404 and the cavity 402 make the transparent cover 400 set as a concave lens, and the parallel light rays directed outward from the LED chip 200 are deflected by the concave lens, and the light beams are diverged, and the light beams become wider, so the light beams become wider. Even and soft, the visual effect is excellent, and the purpose of controlling the light beam and anti-glare is achieved, and the point light source is converted into a surface light source, which expands the irradiation angle and increases the light irradiation range. At the same time, the middle light is slightly weakened to avoid excessive concentration of light. The phenomenon of light spots and dark areas of lighting is generated, the surrounding light is enhanced, the lighting angle can reach 160 degrees to 180 degrees, and the light emitting surface is wide to meet the needs of large-angle lighting. The purpose of wide-range lighting can be achieved without additional lamps. It is economical, environmentally friendly, and practical. Convenient; in addition, the first annular reflective groove 401 and the second annular reflective groove 403 have a reflective effect, enhance the light intensity, improve light efficiency and light utilization rate, and truly realize a reasonable structure design, strong practicability, wide light output surface, and light The light source structure with high utilization rate and good lighting effect has broad market prospects.

The above are only preferred embodiments of the present utility model, and are not therefore limiting the patent scope of the present utility model. All equivalent structural transformations made by using the utility model specification and accompanying drawings are directly or indirectly used in other related technologies. Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (10)

1. A light source structure with a wide light emitting surface, which can be installed on a lamp, including a substrate, an LED chip arranged on the substrate, and a fluorescent layer covering the LED chip, wherein the LED chip is fixed on the substrate by a bracket On the bracket, there is a light source cavity for accommodating LED chips, and an annular groove is also provided on the bracket. The light source structure also includes a light-transmitting cover fixed on the annular groove and covered on the LED chip. A number of first annular light-reflecting grooves with a V-shaped cross-section are uniformly arranged in a ring on the lower end surface of the cover, and a cavity covering the LED chip is formed on the lower end surface of the light-transmitting cover corresponding to the position of the LED chip. 2 . The light source structure with a wide light emitting surface according to claim 1 , wherein the light-transmitting cover is made of a light-transmitting diffusion material. 3 . The light source structure with a wide light emitting surface according to claim 1 or 2 , characterized in that, a plurality of second annular reflective grooves with V-shaped cross-sections are evenly arranged in a ring on the side wall of the cavity. 4 . 4 . The light source structure with a wide light emitting surface according to claim 3 , wherein the cross-sectional shape of the light-transmitting cover is set in an oblate trapezoidal shape. 5 . 5 . The light source structure with a wide light-emitting surface according to claim 4 , wherein an inverted conical cavity is recessed at the center of the upper end surface of the light-transmitting cover toward the LED chip. 5 . 6 . The light source structure with a wide light emitting surface according to claim 5 , wherein the conductive pins led out from the LED chip pass through the bracket and are electrically connected to the substrate. 7 . 7. The light source structure with a wide light emitting surface according to claim 6, wherein the bracket is made of insulating material. 8 . The light source structure with a wide light emitting surface according to claim 7 , characterized in that, the light-transmitting cover is fixed on the annular groove by bonding. 9 . The light source structure with a wide light emitting surface according to claim 8 , wherein the transparent cover is set to be transparent or frosted. 10 . The light source structure with a wide light emitting surface according to claim 9 , wherein the cavity is conical in shape. 11 .