CN205746129U - A kind of LEDbulb lamp - Google Patents

Abstract

An LED bulb lamp, comprising a bulb shell, a lamp head body, a light source board and a lens, the lens is arranged on the light source board, the bulb cover is arranged on the top of the lamp head body, and an LED light source is arranged on the light source board , the LED light sources are arranged circularly around the periphery of the lens, and the sides of the lens are recessed inwardly to form an arc-shaped reflective surface, and the arc-shaped reflective surface reflects part of the light emitted by the LED light source toward the bulb shell. The utility model arranges an arc-shaped reflective surface on the side of the lens, so that the light emitted by the LED light source is irradiated toward a large angle after reflection, and then emits light at a large angle to obtain a better lighting effect.

Description

A kind of LED bulb lamp

technical field

The utility model relates to an LED lighting fixture, in particular to an LED bulb lamp.

Background technique

Under the background of rising global energy shortage concerns, saving energy is an important issue we will face in the future. In the field of lighting, the application of LED light-emitting products is attracting the attention of the world. As a new type of green light source, LED It must be the trend of future development, and the 21st century will enter the era of new lighting sources represented by LEDs. LED is called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life, and small size. It can be widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes. However, in the prior art, the technology and structure of LED bulb lamps are constantly improving, in order to make the lighting effect of LED bulb lamps approach that of traditional tungsten filament bulbs. For example, LED bulbs can realize full-circumference light or large-angle light illumination, so as to meet the illumination of large spaces.

For LED bulbs for indoor lighting, the basic requirements for their light intensity distribution and brightness are: the light bulb must not only have omnidirectional light, but also the light intensity distribution should be as uniform as possible to avoid uneven brightness and darkness, otherwise users will feel uncomfortable. repressed. In order to regulate the production of LED bulb lamps, the American Energy Star has released new standards for LED lighting, which stipulates the light intensity distribution of omnidirectional LEDs (also known as non-directional lights). In this regulation, when the directly below the bulb is specified as 0°, within the range of 135° on both sides, its luminous flux must reach at least 20% of the total luminous flux of the lamp, and within the range of 135°-180°, its luminous flux At least 5% of the total luminous flux of the lamp must be achieved. That is to say, the luminous intensity should be large and evenly distributed in the 270° range of the lower area of the bulb side, and the luminous flux should not be too small in the 90° range of the top. As we all know, due to the package, the LED light source has a maximum luminous surface of 180°, narrow luminous surface, and cannot achieve omni-directional light emission. In the existing LED bulb lamps, in order to realize large-angle light emission, the LED light source is mostly arranged on a three-dimensional ledge in the bulb lamp. For example, the Chinese utility model patent application with the publication date of August 18, 2010 and the application number 201010146167.0 discloses an LED bulb lamp that can improve luminous flux. The angle becomes larger, but the luminous flux at the end of the bulb lamp is small, which cannot meet the requirements of all-round light emission. At the same time, it has the disadvantages of complex structure and difficult manufacture.

Utility model content

Utility model content

The purpose of the utility model is to overcome the disadvantages of the prior art and provide an LED bulb lamp with simple structure and large-angle lighting.

The purpose of this utility model is achieved through the following technical solutions: a LED bulb lamp, comprising a bulb shell, a lamp head body, a light source plate and a lens, the lens is arranged on the light source plate, and the bulb shell cover is arranged on the lamp cap On the top of the body, an LED light source is arranged on the light source plate, and the LED light source is arranged in a ring around the periphery of the lens. Part of the light is reflected toward the bulb shell. The arc-shaped reflective surface includes a first reflective surface and a second reflective surface. The first reflective surface reflects part of the light emitted by the LED light source toward the second reflective surface. The second reflective surface The reflective surface reflects the light emitted by the LED light source toward the bulb housing.

Preferably, the arc-shaped reflective surface includes a first reflective surface and a second reflective surface, the first reflective surface reflects part of the light emitted by the LED light source toward the second reflective surface, and the second reflective surface reflects the LED light source The emitted light is reflected towards the bulb housing.

Preferably, the outer edge of the top of the lens is provided with a light-transmitting area, the light-transmitting area has a scattering structure, and part of the light emitted by the LED light source is directly irradiated toward the top of the bulb shell through the light-transmitting area.

Preferably, the top surface of the light source board is a planar structure, the LED light source is arranged on the light source board in a circular shape, and the projection of the light transmission area on the lens on the light source board roughly coincides with the LED light source.

Preferably, a reflective layer is provided on the arc-shaped reflective surface, and the reflective layer is used to reflect light toward the bulb shell.

Preferably, the bulb shell is a semi-spherical bulb shell, and the light-transmitting scattering material is arranged on the bulb shell.

Preferably, the bottom of the bulb shell is extended downward with a buckle part, and the top of the lamp body is correspondingly provided with a buckle part, and the buckle part cooperates with the buckle part to fix the bulb shell on the lamp body superior.

Preferably, the middle part of the lens is provided with an opening that penetrates up and down, and a hook is extended downward on the wall of the bottom of the opening, and a mounting hole is correspondingly opened on the light source plate. The mounting holes cooperate to fix the lens on the light source board.

The utility model has the following advantages:

1. By setting an arc-shaped reflective surface on the side of the lens, the light emitted by the LED light source is reflected and irradiated at a large angle, and then the matter emits light at a large angle to obtain better lighting effects.

2. By setting the arc-shaped reflective surface as the first reflective surface and the second reflective surface, part of the light emitted by the LED light source is reflected to the second reflective surface through the first reflective surface, and the second reflective surface then directs this part of light outward reflect out. And this part of the light is mainly irradiated towards the range of 135°-180°. In addition, part of the light emitted by the LED light source irradiates the second reflective surface, and the second reflective surface irradiates this part towards the lower area of the bulb side within 270°.

3. By setting a light-transmitting area on the outer edge of the top of the lens, part of the light emitted by the LED light source is directly irradiated toward the top of the bulb shell through the light-transmitting area. Further meet the lighting needs on the top of the bulb.

Description of drawings

Fig. 1 is the front view of the first embodiment of the utility model LED bulb lamp;

Fig. 2 is a schematic diagram of the optical path of the lens in the LED bulb lamp of the present invention.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

An LED bulb lamp 100, comprising a bulb shell 10, a lamp body 20, a light source plate 31 and a lens 40, the lens 40 is arranged on the light source plate 31, the bulb shell 10 is covered on the top of the lamp body 20, The LED light source 32 is arranged on the light source board 31, and the LED light source 32 is arranged in a ring around the periphery of the lens 40. The side of the lens 40 is recessed inward to form an arc-shaped reflective surface, and the arc-shaped reflective surface connects the LED light source Part of the light emitted by 32 is reflected toward the bulb housing 10. By setting an arc-shaped reflective surface on the side of the lens 40, the light emitted by the LED light source 32 is reflected and irradiated toward a large angle, and then emits light at a large angle to obtain a better lighting effect.

Preferably, a reflective layer is provided on the arc-shaped reflective surface, and the reflective layer is used to reflect light toward the bulb shell 10 . The arc reflective surface includes a first reflective surface 41 and a second reflective surface 42, the first reflective surface 41 reflects part of the light emitted by the LED light source 32 toward the second reflective surface 42, and the second reflective surface 42 The light emitted by the LED light source 32 is reflected toward the bulb housing 10 . Part of the light emitted by the LED light source 32 will directly irradiate toward the second reflective surface 42 , and the second reflective surface 42 will directly reflect this part of light.

By setting the arc reflective surface as the first reflective surface 41 and the second reflective surface 42, part of the light emitted by the LED light source 32 is reflected to the second reflective surface 42 through the first reflective surface 41, and the second reflective surface 42 then Some of the light is reflected outwards. And this part of the light is mainly irradiated towards the range of 135°-180°. In addition, part of the light emitted by the LED light source 32 irradiates the second reflective surface 42 , and the second reflective surface 42 irradiates this part toward the lower area of the bulb side within 270°. Wherein, the first reflective surface 41 is tangent to the second reflective surface 42 at the joint, which can make the side surface more smooth and beautiful. The arc curvatures of the first curved surface and the second curved surface can be the same or different, and can be adjusted according to different luminous fluxes required by specific angles.

Preferably, the outer edge of the top of the lens 40 is provided with a light-transmitting area 43, the light-transmitting area 43 has a scattering structure, and part of the light emitted by the LED light source 32 passes through the light-transmitting area 43 and directly faces the top of the bulb housing 10. shine out. By setting the light-transmitting area 43 on the outer edge of the top of the lens 40 , part of the light emitted by the LED light source 32 is directly irradiated toward the top of the bulb housing 10 through the light-transmitting area 43 . Further meet the lighting needs on the top of the bulb. Among them, the light-transmitting area 43 is also provided with a scattering structure, on the one hand, the top can be illuminated more uniformly, and on the other hand, it can effectively reduce glare, which has the advantages of uniform illumination, less glare, and improved lighting environment comfort.

Preferably, the top surface of the light source board 31 is a planar structure, the LED light source 32 is arranged on the light source board 31 in a circular shape, and the projection of the light transmission area 43 on the lens 40 on the light source board 31 is approximately It coincides with the LED light source 32. Wherein, adopting the planar structure is mainly to facilitate the arrangement of the LED light source 32 . Arranging the LED light sources 32 in a ring shape, on the one hand, makes the distribution of the LED light sources 32 uniform and dispersed, avoiding the impact of centralized arrangement on heat dissipation; on the other hand, makes the light distribution more uniform. The projection of the light-transmitting area 43 on the lens 40 on the light source board 31 roughly coincides with the LED light source 32 , so that the light irradiated vertically by the LED light source 32 can irradiate toward the light-transmitting area 43 .

Preferably, the bulb shell 10 is a semi-spherical bulb shell, and the light bulb shell 10 is provided with a light-transmitting scattering material. By using an over-hemispherical bulb, it is possible to achieve better lighting at large angles. The light-transmitting and scattering material provided on the bulb shell 10 can improve the glare problem and avoid direct light, causing discomfort to human eyes.

Preferably, the bottom of the light bulb housing 10 is extended downward with a buckle part 11, and the top of the lamp body 20 is correspondingly provided with a buckle part 21, and the buckle part 11 cooperates with the buckle part 21 to hold the bulb The shell 10 is fixedly installed on the lamp head body 20 . By installing and fixing the buckle part 11 and the buckle part 21 in cooperation, the bulb case 10 can be fixed with less glue, which saves cost and makes the assembly more convenient and fast.

Preferably, the middle part of the lens 40 is provided with an opening 44 penetrating up and down, the bottom wall of the opening 44 is provided with a hook 45 extending downward, and the light source board 31 is correspondingly provided with an installation hole. The hook 45 cooperates with the mounting hole to fix the lens 40 on the light source board 31 . The fixing structure of the lens 40 is arranged at the opening 44, so the curved reflective surface will not be affected by the fixed installation, and the optical effect of the curved reflective surface is guaranteed.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall include Within the protection scope of the utility model.

Claims (7)

1. a LEDbulb lamp, including bulb housing, body, light source board and lens, described lens are arranged on light source board, described bulb housing is located at described body top, it is characterized in that, it is provided with LED light source on described light source board, described LED light source is around the peripheral annular arrangement of lens, the side of described lens caves inward formation curved reflecting surface, the some light that LED light source is sent by described curved reflecting surface reflects away towards bulb housing, described curved reflecting surface includes the first reflecting surface and the second reflecting surface, the some light that LED light source is sent by described first reflecting surface is towards the second reflective surface, the light that LED light source is sent by described second reflecting surface reflects away towards bulb housing.

LEDbulb lamp the most according to claim 1, it is characterized in that: the outward flange of described lensed tip is provided with transparent area, described transparent area has diffusing structure, and the top that the some light that described LED light source sends is directly toward bulb housing by transparent area shines out.

LEDbulb lamp the most according to claim 1, it is characterised in that: the end face of described light source board is planar structure, and described LED light source is circular being arranged on light source board, and the projection on light source board of the transparent area on described lens overlaps with LED light source.

LEDbulb lamp the most according to claim 2, it is characterised in that: described curved reflecting surface is provided with reflector layer, and this reflector layer is for reflecting light towards bulb housing.

LEDbulb lamp the most according to claim 1, it is characterised in that: described bulb housing was hemisphere cell-shell, and described bulb housing is provided with printing opacity scattering material.

LEDbulb lamp the most according to claim 1, it is characterized in that: the bottom of described bulb housing downwardly extends and is provided with clamping part, the top of described body is correspondingly arranged on buckling parts, and described clamping part coordinates with buckling parts and is fixedly mounted on body by bulb housing.

LEDbulb lamp the most according to claim 1, it is characterized in that: described lens medium position is provided with the perforate of a up/down perforation, downwardly extend on the hole wall of described aperture bottom and be provided with snap fit, on described light source board, correspondence offers installing hole, and described snap fit coordinates with installing hole and is fixed on light source board by lens.