TWM473476U - Luminescent device - Google Patents

Description

Illuminating device

The present invention relates to a light-emitting device, and more particularly to a light-tube type light-emitting device using an LED as a light source.

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. A light guiding structure capable of guiding light is additionally mounted. Moreover, while the conventional lamp tube is improved into an LED lamp tube, how to make the power connection portion at both ends of the lamp tube and the circuit board inside the lamp tube can be surely contacted to maintain a good and stable conductive state is an important issue.

Therefore, the object of the present invention is to provide a light-emitting device with a structural innovation and a good conductive contact effect.

Therefore, the novel illuminating device comprises: a mounting seat extending along a length direction, an illuminating unit, a light guiding unit and a lamp cover, And two power connection units.

The light emitting unit is mounted on the mounting base and includes a substrate extending along the length direction, and a plurality of LED lamps disposed on the substrate and arranged along the length direction. The light guiding unit is located at one side of the light emitting unit, and includes a light guiding body extending along the length direction, the light guiding body having a light incident surface that faces the light emitting unit and is incident on the light of the light emitting unit, a light-emitting surface opposite to the light-incident surface, and two light-conducting sides respectively disposed at opposite ends of the light-guiding body and connected between the light-incident surface and the light-emitting surface, the light-incident surface being spaced apart from the substrate of the light-emitting unit And cooperating with the substrate to define an insertion space.

The lamp cover is coupled to the mounting seat and covers the light guiding unit and the outside of the lighting unit. The power connection units are respectively coupled to the two ends of the lamp cover. The power connection units respectively include a conductive member adjacent to the light guiding sides of the light guiding body, and the conductive member has a contact extending toward the insertion space. The insertion wall of the substrate of the light emitting unit.

The utility model has the following advantages: the structural design and the relative relationship between the light guiding body, the light emitting unit and the conductive member ensure that the insertion wall of the conductive member is in positive contact with the substrate and is electrically connected, and the innovative structure design It can improve the contact conductivity and stability of the light-emitting device.

1‧‧‧ Mounting

11‧‧‧ base wall

12‧‧‧ Thermal wall

13‧‧‧Assembled wall

130‧‧‧shade card slot

14‧‧‧Bound wall

140‧‧‧ slots

141‧‧‧Clamping section

142‧‧‧Connecting section

15‧‧‧Lock wall

150‧‧‧Lock hole

2‧‧‧Lighting unit

21‧‧‧Substrate

211‧‧‧ inserted section

22‧‧‧LED lights

3‧‧‧Light guide unit

30‧‧‧Withdrawal space

31‧‧‧Lighting body

311‧‧‧Into the glossy surface

312‧‧‧Glossy surface

313‧‧‧Light guide side

32‧‧‧First reflective strip

321‧‧‧First reflective surface

33‧‧‧Second reflective strip

331‧‧‧Second reflective surface

4‧‧‧shade

41‧‧‧shade department

40‧‧‧shade space

411‧‧‧ embedded card segment

42‧‧‧Connecting Department

421‧‧‧Bend section

422‧‧‧Bend section

5‧‧‧Power connection unit

51‧‧‧Electrical parts

511‧‧‧ wall

512‧‧‧plug wall

513‧‧‧through holes

514‧‧‧Speaking Department

515‧‧‧Resist the protrusion

52‧‧‧End cover

521‧‧‧End wall

522‧‧‧

53‧‧‧Electrical terminals

54‧‧‧ screws

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; Figure 2 is a cross-sectional view of a portion of the first preferred embodiment of the first preferred embodiment, wherein the arrows indicate the direction of travel of the light; Figure 3 is a partial cross-sectional view taken along the length of the first preferred embodiment; A partially exploded perspective view of a portion of a second preferred embodiment of the novel light-emitting device; FIG. 5 is a cross-sectional exploded view of a portion of the second preferred embodiment; and FIG. 6 is a second preferred embodiment A combined cross-sectional view of some of the elements, the arrows in the figure indicate the direction of travel of the light.

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 Figures 1, 2, and 3, a first preferred embodiment of the novel light-emitting device is a light tube that emits light downward, but does not need to define its mounting direction and light-emitting direction. The illuminating device comprises: a mounting seat 1, a lighting unit 2, a light guiding unit 3, a lamp cover 4, and two power connection units 5 (only one is shown).

The mount 1 of the present embodiment is made of a metal having excellent heat dissipation and extends in a longitudinal direction L. The mounting base 1 includes a base wall 11 extending in the longitudinal direction L and having an arcuate cross section, and a plurality of heat dissipating walls 12 spaced apart from each other and protruding upwardly, spaced apart from each other and connected to the two lengths of the base wall 11 respectively a side assembly wall 13 , two coupling walls 14 spaced apart from each other and located below the assembly wall 13 , and two respectively connected to the assembly wall on the same side A locking wall 15 is defined between the connecting wall 14 and the connecting wall 14 and has a locking hole 150.

The heat dissipation walls 12 of the embodiment extend in the longitudinal direction L to form a long strip shape, and can be used to conduct heat generated by the light-emitting unit 2 to the outside to dissipate heat. Each of the assembly walls 13 of the present embodiment has a lamp cover slot 130 having an opening facing outward, and the lamp cover slot 130 extends in the longitudinal direction L to have a long groove shape. The joining walls 14 each include two upper and lower spaced and substantially horizontal clamping segments 141 and an engagement segment 142 that is erected between the clamping segments 141. The clamping segments 141 of each of the bonding walls 14 and the engaging segments 142 together define a slot 140 that opens toward the other bonding wall 14.

The light emitting unit 23 includes a substrate 21, and a plurality of LED lamps 22 disposed on the surface of the substrate 21 and spaced apart along the length direction L. The substrate 21 extends in the longitudinal direction L to form a horizontal plate. The substrate 21 is a circuit board and has two opposite insertion sections 211 extending along the length direction L. Each insertion section 211 is inserted separately. The slots 140 of the connecting walls 14 of the mounting base 12 are further clamped and fixed by the clamping segments 141 of the connecting walls 14. The LED lamps 22 are mounted on the lower surface of the substrate 21 and face the light guiding unit 3, and the illumination direction thereof is mainly downward.

The light guiding unit 3 is located below the light emitting unit 2 and includes a light guiding body 31 extending along the length direction L, and a first one embedded in the light guiding body 31 and extending along the length direction L. Reflective strip 32 and two second reflective strips 33.

The light guiding body 31 is made of transparent plastic and can be made of polystyrene (PS) or polycarbonate (polycarbonate). , referred to as PC), polymethyl methacrylate (PMMA) and other plastic materials. The light guiding body 31 has a light incident surface 311 facing the light emitting unit 2, a light emitting surface 312 opposite to the light incident surface 311, and two ends of the light guiding body 31 respectively connected to the light incident surface. The light guiding side 313 between the 311 and the light emitting surface 312 (only one is shown). The light-emitting surface 312 and the light-incident surface 311 both extend along the longitudinal direction L. The light incident surface 311 is planar and spaced apart from the substrate 21 of the light emitting unit 2, and the light incident surface 311 and the substrate 21 together define an insertion space 30 therebetween. The light-emitting surface 312 has a curved surface, and gradually protrudes downward from the left and right sides toward the center. The light-emitting surface 312 is designed to form a wide-angle light guiding effect, but the light-incident surface 311 is not limited in the implementation of the present invention. And the form of the light-emitting surface 312. Of course, in addition to the light emitted from the light exit surface 312, part of the light may be emitted from a side surface connected between the light incident surface 311 and the light exit surface 312.

The first reflective strip 32 is adjacent to the light-emitting surface 312 of the light-conducting body 31 and has a first reflective surface 321 facing the light-incident surface 311. The first reflective surface 321 can be reflected by the light-incident surface 311. Light. In this embodiment, the first reflective strip 32 is made of opaque PMMA, and the first reflective surface 321 is a curved surface, and gradually protrudes toward the light incident surface 311 from the left and right sides toward the center.

The second reflective strip 33 abuts the light incident surface 311 of the light guiding body 31. The second reflective strips 33 are adjacent to the light incident surface 311 with respect to the first reflective strip 32, and are disposed at oppositely spaced sides. Each of the second reflective strips 33 has a second reflecting surface 331 facing the light emitting surface 312, and the second The reflecting surface 331 can reflect the light reflected by the first reflecting surface 321 toward the light emitting surface 312 to emit light from the light emitting surface 312. In this embodiment, the second reflective strips 33 are made of opaque PMMA, and the second reflective surface 331 is a curved surface, and gradually protrudes toward the light-emitting surface 312 from the left and right sides toward the center.

The lamp cover 4 is coupled to the mounting base 1 and covers the outside of the mounting base 1 and the outside of the left and right sides, and also covers the light guiding unit 3 and the outside of the light emitting unit 2. Specifically, the lamp cover 4 of the present embodiment is integrally connected with the light guiding body 31, and includes a lamp cover portion 41 defining a lamp cover space 40 with an opening facing upward, and two wires are integrally connected to the light guiding body 31, respectively. The light guide body 31 and the connecting portion 42 of the lamp cover portion 41 are coupled to the left and right sides. The lampshade 4 and the light guiding body 31 are made of the same material and are made of a plastic having light transmissivity and flexibility. Therefore, the lampshade 4 and the light guiding unit 3 of the present embodiment can be integrally formed from two materials (the material of the lampshade 4 and the light guiding body 31 are the same, and the materials of the first reflective strip 32 and the second reflective strip 33 are the same), And you can use the co-extrusion method to make one. The cover portion 41 of the lamp cover 4 has two card-shaped segments 411 that are spaced apart from each other and that are respectively engaged in the lamp cover slots 130 of the mount 1 .

The power connection units 5 are respectively coupled to the two ends of the lamp cover 4 along the length direction L and adjacent to the light guide sides 313 of the light guide body 31. Each power connection unit 5 includes a conductive member 51, an end cover 52, two conductive terminals 53, and two screws 54. The conductive member 51 includes a wall 511 at one end of the light guiding body 31, and a substrate 21 from the wall 511 toward the light emitting unit 2 and the light guiding body 31. The insertion space 30 between the smooth surfaces 311 extends and electrically connects the insertion walls 512 of the substrate 21. The shelf wall 511 has two through holes 513 spaced apart from each other. The insertion wall 512 has a protruding portion 514 that protrudes upward toward the substrate 21 and contacts the substrate 21, and a pressing protrusion 515 that protrudes downward toward the light guiding body 31 against the light guiding body 31. .

The end cover 52 is lockedly coupled to the mounting seat 1 and covers one side of the mounting seat 1 and the lamp cover 4 while covering the conductive member 51. The end cap 52 includes an upstanding end wall 521 and a surrounding wall 522 extending from the periphery of the end wall 521 toward the mounting seat 1 and the outside of the lamp cover 4. The conductive terminals 53 respectively protrude through the through holes 513 of the conductive member 51 and the end wall 521 of the end cover 52. The conductive terminals 53 are electrically connected to the light emitting unit 2 by the conductive member 51, so that an externally input power source can be transmitted to the light emitting unit 2 via the conductive terminals 53 and the conductive member 51. The screws 54 are locked to the end wall 521 of the end cover 52 and can be fixed through the end wall 521 and extend into the locking holes 150 of the locking walls 15 of the mounting seat 1 respectively.

In the assembly of the present invention, the insertion sections 211 of the substrate 21 of the light-emitting unit 23 are first inserted along the slots 140 of the mounting base 12 to fix the light-emitting unit 23 to the mounting base 12. Then, the embedded card segments 411 of the lamp cover 4 are embedded and coupled along the length direction L of the lamp cover slot 130 of the mounting seat 1 to fix the mounting seat 12 and the lamp cover 4, and the adhesive can also be used to help the adhesive cover. After the assembly, the lampshade space 40 forms a sealed space to prevent moisture from penetrating. After the power connection unit 5 is assembled, the insertion wall 512 of the conductive member 51 can be inserted into the insertion space 30. The substrate 21 of the light-emitting unit 2 can be pressed against the plug-in wall 512 to form a good electrical connection. In particular, the protruding portion of the plug-in wall 512 has a protruding design to ensure that the substrate 21 is tightly secured. The protruding protrusion 515 of the insertion wall 512 can be pressed against the light guiding body 31, so that the insertion wall 512 can be more stably inserted and fixed to improve the bonding of the conductive member 51. And ensure contact with the substrate 21. It should be noted that the structure of the insertion wall 512 is not limited as long as it can extend into the insertion space 30 and contact the substrate 21.

When the light of the LED lamp 22 enters the light incident surface 311 of the light guiding body 31, it can be projected onto the first reflecting surface 321 of the first reflective strip 32, and the first reflecting surface 321 is used. The light is reflected to the second reflecting surface 331 of the second reflecting strips 33 to reflect the light toward the light emitting surface 312, so that the light is emitted from the light emitting surface 312. Moreover, in the process of the light being reflected, the light continues to propagate in the light guiding body 31, so that the light guiding and light diffusing action of the light guiding body 31 can be performed, so that the light emitted from the light guiding body 31 is relatively uniform. Finally, the light is emitted outward through the lampshade 4. Since the lampshade 4 also has the function of guiding light and diffusing light, the light can be made uniform again, and the light-emitting angle can be close to a 180-degree angle, and a large-area and uniform light is exhibited.

It should be noted that the shapes of the first reflecting surface 321 and the second reflecting surface 331 of the present invention are not limited, as long as the required reflected light is achieved. The partial light emitted by the LED lamps 22 can also be directly emitted toward the light exit surface 312, and is not necessarily reflected by the first and second reflective strips 32, 33.

In summary, the structural design and relative relationship between the light guiding body 31, the light emitting unit 2, and the conductive member 51 ensure that the insertion wall 512 of the conductive member 51 is in positive contact with the substrate 21 and is electrically connected. This innovative structural design can improve the contact conductivity and stability of the illuminating device.

Referring to Figures 4, 5 and 6, a second preferred embodiment of the present illuminating device is substantially identical in construction to the first preferred embodiment. The differences will be mainly described below.

The connecting walls 14 and the locking walls 15 of the mounting seat 1 of the embodiment are respectively connected below the assembly walls 13 , and the slots 140 of each bonding wall 14 and the lock of each locking wall 15 are respectively The position of the access hole 150 is substantially equal.

The light incident surface 311 and the light exit surface 312 of the light guiding body 31 of the embodiment are all planar. Although the shape of each element of the light guiding unit 3 of the present embodiment is slightly different from that of the first preferred embodiment, the functions of the element and the principle of reflecting light and guiding light are the same, and therefore will not be described.

Each connecting portion 42 of the lampshade 4 of the present embodiment includes two bending sections 421, 422, wherein a bending section 421 is connected to the light guiding body 31 and bent upward, and the other bending section 422 is bent from the bending section 422. The segment 421 is bent downward and then obliquely upward to connect the shade portion 41.

When the embodiment is assembled, since the lamp cover 4 is made of plastic which is deformable by flexibility, and because of the design of the bending sections 421, 422 of the connecting portions 42, the left and right sides of the lamp cover portion 41 are made. It can be deformed outwards. Therefore, when the lamp cover 4 is assembled with the mounting seat 1 , the latching portions 411 of the cap portion 41 are reversely biased to make the embedding segments 411 far apart from each other. The distance (the direction of the force application is as shown by the arrow in FIG. 5) increases the opening of the lampshade space 40 (the connecting portions 42 are slightly pulled and deformed at this time), and then the mounting seat 1 is placed in the same Between the card segments 411, the card segments 411 are respectively inserted and coupled to the lamp cover slots 130 of the mounting base 1. When the lampshade 4 returns to its original state, it can be tightly coupled to the mount 1. Since the joint portion of the lampshade 4 and the mounting seat 1 is tightly covered, water or moisture can be prevented from entering the inside of the lampshade 4, and has a waterproof function, which is advantageous for application in an outdoor place.

After being assembled, the light emitting unit 2 is located in the lampshade space 40 and is interposed between the mounting seat 1 and the light guiding body 31. In this embodiment, the lamp cover portion 41 can be telescopically deformed inside and outside by the bending design of the connecting portion 42, and the outer shape of the lamp cover 4 can be maintained by the elasticity, and the lamp cover 4 can be completely embraced by the elastic design. Hold the mount 1 so that the components are firmly bonded and do not fall off. It should be noted that each connecting portion 42 of the present invention may also include only one bent portion, so that the connecting portion 42 can be deformed. Therefore, the number of bending portions of the connecting portion 42 is not limited.

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.

1‧‧‧ Mounting

14‧‧‧Bound wall

140‧‧‧ slots

141‧‧‧Clamping section

2‧‧‧Lighting unit

21‧‧‧Substrate

22‧‧‧LED lights

3‧‧‧Light guide unit

30‧‧‧Withdrawal space

31‧‧‧Lighting body

311‧‧‧Into the glossy surface

312‧‧‧Glossy surface

313‧‧‧Light guide side

32‧‧‧First reflective strip

4‧‧‧shade

5‧‧‧Power connection unit

51‧‧‧Electrical parts

511‧‧‧ wall

512‧‧‧plug wall

514‧‧‧Speaking Department

515‧‧‧Resist the protrusion

52‧‧‧End cover

521‧‧‧End wall

522‧‧‧

53‧‧‧Electrical terminals

L‧‧‧ Length direction

Claims (10)

An illuminating device comprising: a mounting base extending along a length direction; an illuminating unit mounted on the mounting base and including a substrate extending along the length direction, and a plurality of disposed on the substrate and along the length a light guide unit arranged in a direction; a light guiding unit is located at one side of the light emitting unit, and includes a light guiding body extending along the length direction, the light guiding body having a light toward the light emitting unit and for the light emitting unit a light incident surface, a light emitting surface opposite to the light incident surface, and two light guiding sides respectively disposed at opposite ends of the light guiding body and connected between the light incident surface and the light emitting surface, the light incident surface Intersecting with the substrate of the light emitting unit and defining an insertion space together with the substrate; a lamp cover is combined with the mounting seat and covering the light guiding unit and the outside of the light emitting unit; and two power connection units are respectively coupled to the The power connection unit includes a conductive member adjacent to the light guiding side of the light guiding body, and the conductive member has a substrate extending toward the insertion space and contacting the light emitting unit. Wall plug. The illuminating device of claim 1, wherein the insertion wall has a protruding portion that protrudes toward the substrate to contact the substrate. The illuminating device of claim 2, wherein the insertion wall further has a pressing protrusion protruding toward the light guiding body against the light guiding body. The light-emitting device according to any one of claims 1 to 3, wherein the guide The electrical component further includes a shelf wall at one end of the light guiding body and connected to the socket wall and having two spaced through holes; each power connection unit further includes an end cover at one end of the lamp cover and covering the conductive member And two conductive terminals that respectively protrude through the through holes of the conductive member and the end cap. The illuminating device of any one of claims 1 to 3, wherein the light guiding unit further comprises a first reflective strip and two second reflective strips respectively disposed in the light guiding body, the first reflective The strip has a first reflecting surface facing the light incident surface of the light guiding body and reflecting light passing through the light incident surface, and the second reflecting strips are oppositely spaced from each other and have a direction toward the guiding a second reflecting surface of the light emitting surface of the light body, wherein 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 the lampshade is integrally formed with the light guiding unit, the lampshade includes a lampshade portion defining a lampshade space, and two are integrally connected to the left and right sides of the light guiding body And used to connect the light guiding body and the connecting portion of the lamp cover portion. The illuminating device of claim 6, wherein each of the connecting portions of the lampshade has at least one bent portion. The illuminating device of claim 6, wherein the mounting base comprises a base wall extending along the length direction, and two assembly walls respectively connected to the two long sides of the base wall and each having a lamp cover slot; The lampshade portion has two card segments that are spaced apart and respectively snap into the lampshade card slots. The illuminating device of claim 8, wherein the mount further comprises two And a plurality of spaced apart binding walls, each of the binding walls comprising two upper and lower spaced horizontal clamping sections, and a connecting section connected between the clamping sections, the clamping sections of each bonding wall being coupled to the coupling section The segments collectively define a slot opening toward the other binding wall; the base of the lighting unit has two interposed segments extending opposite the length and interspersed in the slots. The illuminating device of claim 9, wherein the mounting base further comprises two locking walls respectively connecting the assembly wall and the connecting wall on the same side and having a locking hole respectively; each power connection unit further comprises An end cap located at one end of the lamp cover and covering the conductive member, and two screws fixed through the end cover and respectively extending into the locking holes of the locking walls.