TWM462954U - Light emitting apparatus - Google Patents

Description

Illuminating device

The present invention relates to a light-emitting device, and more particularly to a light-emitting device that incorporates a light-guiding structure and allows light to be uniformly emitted.

Light-emitting diodes (LEDs) have been widely used in various lighting devices because of their high brightness, power saving, solid-state lighting, etc. At present, more and more LED tubes are gradually replacing traditional fluorescent tubes. In the known LED tube, several LED lamps must be set as the light source. However, since the LED lamp is a point source, in order to convert the light of each LED lamp into a uniform light that can generate a large area of illumination, it must be in the tube. In addition, a light guiding structure capable of guiding light is additionally installed, but the addition of the light guiding structure causes an increase in the number of components in the entire lamp tube, which leads to cumbersome assembly, and the assembly manpower and cost are inevitably increased for assembly. Therefore, it is known that a lamp tube equipped with a light guiding structure needs to be improved.

Therefore, the object of the present invention is to provide a light-emitting device which can reduce the number of components and is easy to assemble, simple and fast.

Therefore, the novel lighting device comprises: a mounting seat, a lighting unit disposed on the mounting seat, and an integrally formed light guiding device lampshade. The light guide cover is combined with the mount and the light emitted by the light emitting unit is emitted outward. The light guide cover includes a lamp cover portion defining a lamp cover space, a light guide portion located in the lamp cover space, and two wires respectively integrally connected to the left and right sides of the light guide portion for engaging the light guide portion and the An elastic connecting portion of the lamp cover portion. The light guiding portion includes a light incident surface facing the light emitting unit, and a light emitting surface opposite to the light incident surface. Each of the elastic connecting portions includes at least one bent portion.

The utility model has the advantages that the lampshade portion, the light guiding portion and the elastic connecting portion of the light guiding lamp cover are integrally formed, so that the present invention only needs to provide a single component to have various functions such as light guiding, shell cover and elastic deformation. Therefore, the number of components can be reduced, and assembly convenience and assembly speed can be improved. By adding the light guiding design of the light guiding portion and the lamp cover portion, the light can be made uniform to generate light with uniform brightness.

2‧‧‧ Mounting

21‧‧‧ base wall

22‧‧‧ Thermal wall

23‧‧‧ first binding wall

231‧‧‧First slot

24‧‧‧Second junction wall

241‧‧‧Clamping section

242‧‧‧Connecting section

243‧‧‧second slot

25‧‧‧Extension wall

3‧‧‧Lighting unit

31‧‧‧Substrate

311‧‧‧ inserted section

32‧‧‧Lighting parts

4‧‧‧Lighting lamp cover

41‧‧‧shade department

410‧‧‧shade space

411‧‧‧Main cover section

412‧‧‧ Combined cover section

42‧‧‧Light Guide

421‧‧‧Into the glossy surface

422‧‧‧Glossy surface

43‧‧‧Flexible connection

431, 432‧‧‧ bends

44‧‧‧First reflection

441‧‧‧First reflective surface

45‧‧‧Second reflection

451‧‧‧Second reflective surface

L‧‧‧ Length direction

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a partial perspective exploded view of a first preferred embodiment of the novel illumination device; A cross-sectional exploded view of a preferred embodiment; FIG. 3 is a combined schematic view of the first preferred embodiment, wherein the arrows indicate the direction of travel of the light; FIG. 4 is a second preferred embodiment of the light-emitting device of the present invention. Combined sectional view; and FIG. 5 is a combined cross-sectional view of a third preferred embodiment of the novel light-emitting device Figure.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIGS. 1~3, a first preferred embodiment of the illuminating device of the present invention is a lamp tube, and can be installed on a ceiling of a building or other place to be installed to illuminate the light downward, but the present invention does not need to be limited. The mounting portion and the light emitting direction of the light-emitting device may be changed, for example, in other applications, by changing the mounting direction of the light tube to illuminate upward. The illuminating device comprises: a mounting seat 2, a lighting unit 3, and a light guide cover 4.

The mount 2 extends along a length direction L, the material of which is, for example, aluminum metal and is integrally formed. The mounting base 2 includes a base wall 21 extending along the longitudinal direction L and having a slightly curved shape, and a plurality of heat dissipation walls 22 spaced apart from each other and located on the base wall 21, and spaced apart from each other and connected to the base wall 21 respectively. The first connecting wall 23 of the two long sides, the second connecting wall 24 spaced apart from each other and the lower side of the first connecting wall 23, and the extending wall 25 of the second connecting wall 24 are respectively connected.

The heat dissipation walls 22 extend along the length direction L and protrude from the base wall 21 away from the light-emitting unit 3, and are used to conduct heat energy generated when the light-emitting unit 3 emits light, thereby achieving a good heat dissipation effect. The first bonding walls 23 respectively define a first slot 231 with an opening facing outward. The second binding walls 24 each include two upper and lower spaced and horizontal clamping segments 241 and an engagement segment 242 that is erected between the clamping segments 241. The clamping segments 241 of each second bonding wall 24 are shared with the engaging segments 242 A second slot 243 defining an opening toward the other second binding wall 24 is defined. Each of the extension walls 25 is connected to the outside of the clamping section 241 located below the second coupling wall 24 on the same side.

The light emitting unit 3 includes a substrate 31, and a plurality of light emitting members 32 disposed on the surface of the substrate 31 and spaced apart along the length direction L. The substrate 31 extends in the longitudinal direction L to form a horizontal plate. The substrate 31 is a circuit board and has two opposite insertion sections 311 extending along the length direction L. Each insertion section 311 is inserted separately. The second slots 243 of the second coupling walls 24 of the mounting base 2 are further clamped and fixed by the clamping segments 241 of the second coupling walls 24 . The thermal energy of the illuminating members 32 can be conducted by the heat dissipating walls 22 of the mounting base 2, so that the mounting base 2 can serve as an element for fixing the illuminating unit 3 on the one hand and a heat dissipating function on the other hand. The light-emitting member 32 of the present embodiment is a light-emitting diode (LED) lamp and is mounted on the lower surface of the substrate 31, so that the illumination direction thereof is mainly downward, but the embodiment may also be oriented in different directions depending on the installation occasion. Illumination.

The light guide cover 4 extends along the length direction L, and includes a lamp cover portion 41 defining a lamp cover space 410 with an opening facing upward, a light guiding portion 42 located in the lamp cover space 410, and two integrally connected thereto. The elastic connecting portion 43 for engaging the light guiding portion 42 and the lamp cover portion 41 on the left and right sides of the light guiding portion 42 and a first reflecting portion 44 and two second reflections integrally coupled with the light guiding portion 42 Part 45. The lamp cover portion 41, the light guiding portion 42, and the elastic connecting portions 43 are made of the same material, and are made of a plastic having light transmissivity and flexibility, such as polystyrene. (polystyrene, PS for short), polycarbonate (polycarbonate, PC), polymethyl methacrylate (PMMA) and other plastic materials. The first reflecting portion 44 and the second reflecting portions 45 of the present embodiment have the same material, are made of opaque PMMA, and can be used to reflect light.

Therefore, the light guide cover 4 of the present embodiment is integrally formed of two materials, and can be integrally formed by a co-extrusion method.

The cover portion 41 of the light guide cover 4 includes a main cover segment 411 located below the mount 2, and two opposite sides of the main cover segment 411 are coupled to and define the cover space together with the main cover segment 411. The combined cover section 412 of 410. The main cover section 411 of the embodiment has an arc shape, so that the overall shape of the light-emitting device of the present invention is curved and shaped. Each of the joint cover segments 412 of the present embodiment is inserted and fixed corresponding to the first slots 231 of the mount 2 respectively.

The light guiding portion 42 extends along the longitudinal direction L and has a substantially elongated plate shape. The light guiding portion 42 is located below the light emitting unit 3 and includes a light incident surface 421 facing the light emitting unit 3, and a reverse The light-emitting surface 422 faces the light-incident surface 421 and faces downward.

The elastic connecting portion 43 is integrally formed with the lamp cover portion 41 and the light guiding portion 42. Each of the elastic connecting portions 43 includes two bending segments 431 and 432, and a bending portion 431 is connected to the light guiding portion 42 and The upper bent portion 432 is bent downward from the bent portion 431 and then extended obliquely upward to connect the shade portion 41.

The first reflecting portion 44 extends along the length direction L to form a strip And arranged adjacent to the light-emitting surface 422 of the light guiding portion 42. The first reflecting portion 44 has a first reflecting surface 441 facing the light emitting unit 3 and reflecting light passing through the light incident surface 421. It is worth mentioning that, because the first reflecting portion 44 is opaque and spaced apart from the illuminating members 32, the illuminating members 32 can be shielded, and local bright spots formed by the illuminating members 32 can be avoided. The visual entanglement is such that the first reflecting portion 44 is provided on the one hand for reflecting light, and on the other hand, for improving the light uniformity and the light-emitting effect of the present invention.

The second reflecting portions 45 extend in the longitudinal direction L and are elongated, and are disposed adjacent to each other in the left-right direction adjacent to the light incident surface 421 of the light guiding portion 42. The second reflecting portions 45 each have a second reflecting surface 451 facing the light emitting surface 422. The second reflecting surface 451 can reflect the light reflected by the first reflecting surface 441 toward the light emitting surface 422 to make the light. The light exit surface 422 is emitted.

In the assembly of the present invention, the insertion sections 311 of the substrate 31 of the light-emitting unit 3 are respectively inserted along the second slots 243 of the mounting base 2 to fix the light-emitting unit 3 to the mounting base 2, The mount 2 and the light guide cover 4 are then assembled.

Since the light guide cover 4 is made of a flexible and deformable plastic, and because of the design of the bent portions 431, 432 of the elastic connecting portions 43, the left and right sides of the cover portion 41 can be outwardly Extend the deformation. Therefore, when the light guide cover 4 is assembled with the mounting seat 2, the coupling cover segments 412 of the cover portion 41 are reversely biased to move the combined cover segments 412 away from each other (the direction of the force is as shown in FIG. 2 Shown to make the opening of the lampshade space 410 When the elastic connecting portion 43 is pulled and slightly deformed, the mounting seat 2 is then disposed between the combined cover segments 412, so that the combined cover segments 412 respectively correspond to the mounting seat 2 The first slots 231 of the sockets are inserted and joined. When the light guide cover 4 returns to its original state, it can be tightly coupled with the mount 2. Since the joint portion of the light guide cover 4 and the mounting seat 2 is tightly covered, water or moisture can be prevented from entering the inside of the light guide cover 4, which has a waterproof function and is favorable for application in an outdoor place.

After the assembly of the present invention, the light-emitting unit 3 is located in the shade space 410 of the light guide cover 4 and is interposed between the mount 2 and the light guide portion 42. Preferably, the present invention can also be provided with two end caps respectively located at the opposite ends of the light guide cover 4, but these end caps are not described in the prior art. According to the bending design of the elastic connecting portion 43, the lamp cover portion 41 of the light guide cover 4 can be deformed inside and outside, and the outer shape of the light guide cover 4 can be maintained by the elasticity, and the elastic design can be adopted. The light guide cover 4 can completely hold the mount 2 so that the components can be firmly coupled without falling off. It should be noted that each elastic connecting portion 43 of the present invention may also include only one bending segment, so that the elastic connecting portion 43 can be deformed, so that each elastic connecting portion 43 does not have two bending portions. The segments 431, 432 are necessary, and each of the elastic connecting portions 43 includes at least one bent portion.

In the present invention, the light of the illuminating member 32 is incident on the light incident surface 421 of the light guiding portion 42 and can be projected onto the first reflecting surface 441 of the first reflecting portion 44, and the first reflecting surface is 441 respectively reflecting light rays to the second reflecting surface 451 of the second reflecting portions 45, and the second reflecting surfaces The 451 then reflects the light toward the light exiting surface 422 so that light can be emitted from the light exiting surface 422. When the light is reflected by the first reflecting portion 44 and the second reflecting portion 45, the light continues to propagate through the light guiding portion 42. Therefore, the light guiding portion 42 can be guided by the light guiding portion 42 to be emitted. The light of the light guiding portion 42 is relatively uniform. The light is emitted from the light guiding portion 42 and then emitted outward through the cover portion 41. Since the cover portion 41 also has a function of guiding light and diffusing light, the light can be made uniform again, and finally the light guide cover is used. 4 The light emitted by the light can be close to a 180 degree angle, showing a large area and uniform light.

It should be noted that the shape and extension manner of the first reflecting surface 441 and the second reflecting surface 451 of the present invention are not limited as long as the required reflected light is achieved. In addition, part of the light emitted by the light-emitting elements 32 may be directly emitted toward the light-emitting surface 422, and is not necessarily reflected by the first reflection portion 44 or the second reflection portion 45.

In summary, the lamp cover portion 41, the light guiding portion 42 and the elastic connecting portion 43 of the light guide cover 4 are integrally formed, so that the present invention only needs to provide a single component to have both light guiding, cover and elastic deformation. A variety of functions, so the number of components can be reduced, energy saving and carbon reduction effect can be achieved, and assembly convenience and assembly speed can be improved. Moreover, the light guide cover 4, the mounting base 2, and the light-emitting unit 3 are also assembled in a relatively simple and fast manner. The light guiding design of the light guiding portion 42 and the cover portion 41 can make the light uniform and can be achieved. The purpose of this new type.

Referring to FIG. 4, a second preferred embodiment of the present illuminating device is substantially the same as the first preferred embodiment, except that The main cover section 411 of the shade portion 41 of the light guide cover 4 of the present embodiment has a square shape, and the cross-sectional shape of the shade space 410 is substantially quadrangular.

Referring to FIG. 5, a third preferred embodiment of the present illuminating device is substantially the same as the first preferred embodiment. The difference is that the lamp cover portion 41 of the light guide cover 4 of the present embodiment includes several The blocks extending in a plane and respectively connected at an angle, the cross-sectional shape of the lampshade space 410 is substantially pentagonal.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

2‧‧‧ Mounting

21‧‧‧ base wall

22‧‧‧ Thermal wall

23‧‧‧ first binding wall

231‧‧‧First slot

24‧‧‧Second junction wall

241‧‧‧Clamping section

242‧‧‧Connecting section

243‧‧‧second slot

25‧‧‧Extension wall

3‧‧‧Lighting unit

31‧‧‧Substrate

311‧‧‧ inserted section

32‧‧‧Lighting parts

4‧‧‧Lighting lamp cover

41‧‧‧shade department

410‧‧‧shade space

411‧‧‧Main cover section

412‧‧‧ Combined cover section

42‧‧‧Light Guide

421‧‧‧Into the glossy surface

422‧‧‧Glossy surface

43‧‧‧Flexible connection

431, 432‧‧‧ bends

44‧‧‧First reflection

441‧‧‧First reflective surface

45‧‧‧Second reflection

451‧‧‧Second reflective surface

Claims (6)

An illuminating device comprising: a mounting seat; an illuminating unit disposed on the mounting seat; and an integrally formed light guiding lamp cover coupled to the mounting seat and emitting light emitted by the illuminating unit outwardly, the guiding light The lampshade includes a lamp cover portion defining a lampshade space, a light guiding portion located in the lampshade space, and two wires respectively integrally connected to the left and right sides of the light guiding portion for engaging the light guiding portion and the lampshade portion And an elastic connecting portion, the light guiding portion includes a light incident surface facing the light emitting unit, and a light emitting surface opposite to the light incident surface, each elastic connecting portion includes at least one bent portion. The illuminating device of claim 1, wherein the mounting base comprises a base wall extending along a length direction, and a second connecting body respectively connected to the two long sides of the base wall and respectively defining a first slot a joint wall; the lamp cover portion of the light guide cover includes a main cover section facing the light exit surface of the light guide portion, and two opposite sides of the main cover section and defining the shade space together with the main cover section In conjunction with the cover segments, each of the combined cover segments are respectively inserted and secured against the first slots of the mount. The illuminating device of claim 2, wherein the mounting base further comprises two second connecting walls spaced apart from each other and connected to the first connecting walls, the second connecting walls each including two upper and lower spaced horizontal clamps a holding section, and a connecting section connected between the clamping sections, the clamping sections of each second bonding wall and the engaging section jointly defining a second insertion opening toward the other second bonding wall a slot; the lighting unit includes a length along the length An extended substrate, and a plurality of illuminating members disposed on the surface of the substrate and arranged along the length direction, the substrate having two opposite insertions extending along the length direction and respectively inserted into the mounting seat The inserted segment in the slot. The light-emitting device of claim 2, wherein the mount further comprises a plurality of heat dissipation walls protruding from the base wall in a direction away from the light-emitting unit. The illuminating device of claim 1, wherein the light guide cover further comprises a first reflecting portion and two second reflecting portions integrally coupled to the light guiding portion, the first reflecting portion being adjacent to the light guiding portion a light-emitting surface, and having a first reflecting surface facing the light-emitting unit and reflecting light passing through the light-incident surface, the second reflecting portions being adjacent to the light-incident surface of the light guiding portion The second reflecting portions each have a second reflecting surface facing the light emitting surface of the light guiding portion, and the second reflecting surface reflects the light reflected by the first reflecting surface toward the light emitting surface. The illuminating device of claim 1, wherein each of the elastic connecting portions comprises two bending segments, wherein one of the bending segments is bent upward and the other bending segment is bent downward.