TW201510423A - Illuminant device and lighting module thereof - Google Patents

Abstract

A lighting module includes a main circuit board, a plurality of illuminant units, and a driving unit. The main circuit board includes a plurality of through holes. The illuminant unit includes a transparent substrate, a circuit layer, a plurality of light emitting diodes (LED) dies, and a transparent resin. The transparent substrate includes a first plane. The transparent substrate is arranged on the main circuit board, and then a predetermined angle spans between the first plane and the main circuit board. The circuit layer and the LED dies are placed on the first plane, and the LED dies are electrically connected to the circuit layer. The transparent resin covers the LED dies. The driving unit includes a driving circuit board and a driver electrically connected to the driving circuit board. The driving circuit board includes a plurality of protrusions, and the protrusions are respectively inserted into the through holes such that the driving circuit board is substantially perpendicular to the main board.

Description

Light-emitting device and light source module thereof

The invention relates to a light-emitting device and a light source module, in particular to a light-emitting device and a light source module using a light-emitting diode as a light source.

A light emitting diode (LED) is a semiconductor component that converts electrical energy into light energy through a semiconductor compound to achieve a luminous effect. Therefore, it has the advantages of long life, high stability, and low power consumption. Widely used in home, office, outdoor and mobile lighting to replace traditional non-directional light sources such as lamps, incandescent bulbs and halogen lamps.

Referring to the first figure, it is a cross-sectional view of a conventional light-emitting device. The light-emitting device 1 includes a casing 10, a light source module 12, a driving module 14, a lamp cover 16, and a plurality of connecting wires 18. The housing 10 defines an accommodating space 100. The driving module 14 is disposed in the accommodating space 100 for driving the light source module 12 to emit light. The light source module 12 is disposed on one side of the housing 10 and electrically connected to the driving module 14 through the connecting line 18 . The light source module 12 includes a circuit board 120 and a plurality of light emitting diodes 122. The circuit board 120 has a flat shape and has a board surface 121. The board surface 121 is a plane having a large area of the circuit board 120. The LEDs 122 are disposed on the board surface 121 of the circuit board 120 and electrically connected to the circuit board 120 such that the LEDs emit light in a direction opposite to the housing 10. The lamp cover 16 is coupled to the housing 10 such that the light source module 12 is located between the lamp cover 16 and the housing 10.

Since the light-emitting diode 122 is a directional light source, the light emitted by the light-emitting diode 122 can only emit light toward the front (ie, opposite to the direction of the casing 10), and the light-emitting angle of the current light-emitting diode 122 is about Since the illumination angle of the light-emitting device 1 is far less than the illumination angle of the non-directional light source emitted by the conventional halogen bulb, the light-emitting requirement of the non-directional light source such as a halogen bulb cannot be achieved, and the user is reduced in use. The intention of the light-emitting device 1 of the light-emitting diode 122 as a light-emitting source.

The light source module 12 and the driving module 14 of the light-emitting device 1 are electrically connected through the connecting line 18. Therefore, when assembling the light-emitting device 1, the connecting line 18 and the light source module 12 and the driving mode must be respectively connected. The joints of the group 14 are welded, and the overall manufacturing process is complicated. When the light-emitting device 1 is impacted by an external force, the connecting wire 18 may be detached from the light source module 12 or the driving module 14, so that the light-emitting device 1 cannot achieve the light-emitting effect. .

In view of the prior art, one aspect of the present invention provides a light source module.

In one embodiment of the present invention, a light source module is provided. The light source module includes a main circuit board, a plurality of light emitting units, and a driving unit. A plurality of through holes are formed in the main circuit board. The light emitting unit comprises a transparent substrate, a circuit layer and a transparent adhesive layer; the transparent substrate comprises a first plate surface and a second plate surface opposite to the first plate surface, the transparent substrate is disposed on the main circuit board, and the transparent substrate The first board surface is clamped to the main circuit board by a predetermined angle. The circuit layer is disposed on the first board surface; the light emitting diode die is disposed on the first board surface and electrically connected to the circuit layer; the transparent glue layer is disposed on the first board surface and the second board surface, and is coated with the light emitting Polar body grains and part of the circuit layer. The driving unit comprises a driving circuit board and a driver; the driving circuit board comprises a plurality of convex portions, and the convex portions are correspondingly inserted in the through holes, so that the driving circuit board is substantially perpendicular to the main circuit board and electrically connected with the main circuit board . The driver is disposed on the driving circuit board and electrically connected to the driving circuit board.

According to other embodiments of the present disclosure, the main circuit board has a plurality of slots, and the transparent substrate is correspondingly inserted into the slots.

According to other embodiments of the present technical aspect, the predetermined angle is 90 degrees.

According to another embodiment of the present disclosure, the light source module further includes a plurality of connecting members disposed between the main circuit board and the circuit layer for connecting the main circuit board and the light emitting unit, and electrically connecting the main circuit board and the circuit layer. .

According to other embodiments of the present technical aspect, the predetermined angle is greater than 90 degrees.

According to other embodiments of the present disclosure, the light source module further includes a plurality of connection terminals connected to the driving circuit board.

According to other embodiments of the present technical aspect, the light emitting units are arranged equiangularly on the main circuit board.

Another embodiment of the present invention provides a light emitting device including a housing and a light source module. The housing comprises a surrounding wall and a bottom wall connected to the surrounding wall. The surrounding wall and the bottom wall cooperate to define an accommodating space and an opening communicating with the accommodating space, and the bottom wall is formed with a plurality of through holes. The light source module comprises a main circuit board, a plurality of light emitting units and a driving unit; the main circuit board closes the opening, and the plurality of through holes are formed on the main circuit board. The illuminating unit comprises a transparent substrate, a circuit layer, a plurality of illuminating diode dies and a transparent adhesive layer; the transparent substrate comprises a first plate surface and a second plate surface opposite to the first plate surface, and the transparent substrate is disposed on the transparent substrate On the main circuit board, the first board surface of the transparent substrate is clamped to the main circuit board by a predetermined angle. The circuit layer is disposed on the first board surface; the light emitting diode die is disposed on the first board surface and electrically connected to the circuit layer. The transparent adhesive layer is disposed on the first board surface and the second board surface, and covers the light emitting diode die and a part of the circuit layer. The driving unit is located in the accommodating space, and the driving unit comprises a driving circuit board and a driver. The driving circuit board includes a plurality of convex portions, and the convex portions are correspondingly inserted in the through holes, so that the driving circuit board is substantially perpendicular to the main circuit board and electrically connected to the main circuit board. The driver is disposed on the driving circuit board and electrically connected to the driving circuit board.

According to other embodiments of the present disclosure, the main circuit board has a plurality of slots, and the transparent substrate is correspondingly inserted into the slots.

According to other embodiments of the present technical aspect, the predetermined angle is 90 degrees.

According to another embodiment of the present disclosure, the light emitting device further includes a plurality of connecting members disposed between the main circuit board and the circuit layer for connecting the main circuit board and the light emitting unit, and electrically connecting the main circuit board and the circuit layer.

According to other embodiments of the present technical aspect, the predetermined angle is greater than 90 degrees.

According to other embodiments of the present technical aspect, the light emitting units are arranged equiangularly on the main circuit board.

According to another embodiment of the present technical aspect, the light emitting device further includes a lamp cover, and the lamp cover is coupled to the housing such that the light emitting unit is located between the main circuit board and the lamp cover.

According to other embodiments of the present disclosure, the light emitting device further includes a plurality of connection terminals connected to the driving circuit board and extending through the through holes.

According to another embodiment of the present disclosure, the lamp cover includes a support portion and a plurality of fixing portions. The support portion is coupled to the fixing portion, and the support portion is coupled to the housing, so that the fixing portion has a predetermined distance to support the main circuit board. The fixing portion is correspondingly disposed above the light emitting unit.

1, 3‧‧‧ illuminating devices

10, 4‧‧‧ shell

100, 44‧‧‧ accommodating space

12, 5, 5A‧‧‧ light source module

120‧‧‧ boards

121‧‧‧ board

122‧‧‧Lighting diode

14‧‧‧Drive Module

16, 6‧‧‧ lampshade

18‧‧‧Connecting line

40‧‧‧ Surrounding wall

42‧‧‧ bottom wall

420‧‧‧Perforation

46‧‧‧ openings

48‧‧‧ buckle

50‧‧‧ main board

500‧‧‧ slots

502‧‧‧through hole

504‧‧‧Circuit wiring

506‧‧‧ solder pads

51‧‧‧ board

52‧‧‧Lighting unit

520‧‧‧Transparent substrate

5200‧‧‧ first board

5202‧‧‧ second board

522‧‧‧ circuit layer

524‧‧‧Light Emitting Diode Grains

526‧‧‧Transparent rubber layer

53‧‧‧ Solder

54‧‧‧ drive unit

540‧‧‧Drive circuit board

5400‧‧‧ copper foil line

5402‧‧‧ convex

542‧‧‧ drive

56‧‧‧Connecting terminal

60‧‧‧Support

600‧‧‧ snap hole

62‧‧‧ Fixed Department

7‧‧‧Connecting parts

The first figure is a cross-sectional view of a conventional illumination device.

The second figure is an exploded perspective view of a light-emitting device according to a first embodiment of the present disclosure.

The third figure is a combination diagram of a light-emitting device according to a first embodiment of the disclosure.

The fourth figure is an exploded perspective view of the light source module of the first embodiment of the disclosure.

The fifth figure is a combination diagram of the light source module of the first embodiment of the disclosure.

The sixth figure is a combination view of another perspective of the light source module of the first embodiment of the disclosure.

FIG. 7 is an exploded perspective view of a light source module according to a second embodiment of the present disclosure.

The eighth figure is a combination diagram of the light source module of the second embodiment of the disclosure.

The above and other objects, features, and advantages of the present invention will be better understood from the following description of the preferred embodiments.

Referring to the second and third figures, an exploded perspective view and a combined view of a light-emitting device according to a first embodiment of the present disclosure are provided. The illuminating device 3 is for providing a light source having an illuminating angle greater than 180 degrees. The light-emitting device 3 includes a casing 4, a light source module 5 and a lamp cover 6.

The housing 4 includes a surrounding wall 40 and a bottom wall 42. The bottom wall 42 is connected to the bottom edge of the surrounding wall 40 and cooperates with the surrounding wall 40 to define an accommodating space 44 and an opening 46 communicating with the accommodating space 44. The surrounding wall 40 is formed with a plurality of snaps 48 on one side adjacent to the opening 46. A plurality of through holes 420 are formed in the bottom wall 42. In the present embodiment, the number of the through holes 420 is exemplified by two.

Refer to the fourth, fifth and sixth figures. The light source module 5 includes a main circuit board 50, a plurality of light emitting units 52, a driving unit 54, and a plurality of connecting terminals 56. The main circuit board 50 seals the opening 46 (as shown in the first figure and the second figure). The main circuit board 50 is formed with a plurality of slots 500 and a plurality of through holes 502. In the embodiment, the slot 500 and the through hole 502 are formed. The slots 500 are formed through the main circuit board 50. In actual implementation, the slots 500 may also be slot structures that do not extend through the main circuit board 50. The main circuit board 50 can be, for example, but not limited to, a printed circuit board, and one of the board faces 51 of the main circuit board 50 is provided with a plurality of circuit wirings 504 and pads 506 disposed adjacent to the The socket 500 and the through hole 502, and the pad 506 is electrically connected to the circuit wiring 504. It should be noted that when the board surface 51 of the main circuit board 50 and the other board surface (not labeled) opposite to the board surface 51 are provided with the circuit wiring 504 and the bonding pad 506, the slot 500 and the through hole are provided. 502 may be a slot structure that does not extend through the main circuit board 50.

The light emitting unit 52 includes a transparent substrate 520, a circuit layer 522, a plurality of light emitting diode dies 524, and a transparent adhesive layer 526. The transparent substrate 520 can be made of, for example, but not limited to, glass or quartz. The transparent substrate 520 includes a first plate surface 5200 and a second plate surface 5202 with respect to the first plate surface 5200. In this embodiment, The first plate surface 5200 and the second plate surface 5202 are planes having a large area of the transparent substrate 520, respectively.

The circuit layer 522 is attached to the first plate surface 5200 of the transparent substrate 520. The circuit layer 522 is made of a material having electrical conductivity (for example, copper) and serves as a conduction path for electric power.

The LED die 524 is disposed on the first board surface 5200 and electrically connected to the circuit layer 522. In the present embodiment, the LED 524 is linearly arranged, and is not limited thereto.

The transparent adhesive layer 526 is disposed on the first board surface 5200 and the second board surface 5202, and covers the LED die 524 and a portion of the circuit layer 522 (ie, a portion of the circuit layer 522 is exposed outside the transparent adhesive layer 526). ). The transparent adhesive layer 526 can be, for example, but not limited to, an epoxy resin or a resin. The transparent adhesive layer 526 can provide a light-mixing space emitted by the light-emitting diode die 524 to uniformly increase the light emitted by the light-emitting unit 52. At the same time, the transparent adhesive layer 526 is also used to prevent the light-emitting diode die 524 from being damaged by moisture or external force. It should be noted that the transparent adhesive layer 526 may also be uniformly mixed with a wavelength converting substance (not shown), and the wavelength converting substance may be, for example, a fluorescent powder, and the wavelength converting substance is used for emitting light A portion of the light emitted by the bulk crystal grains 524 undergoes wavelength conversion and produces a wavelength converted light. The wavelength-converted light is mixed with other portions of the light emitted by the LED die 524 to produce a light of a desired color.

The light emitting units 52 are respectively inserted into the slots 500, so that the first board surface 5200 of the transparent substrate 520 and the board surface 51 of the main circuit board 50 are at a predetermined angle, and the circuit layer 522 of the light emitting unit 52 and the main circuit board The pad 506 of 50 is in contact. It should be noted that when the light emitting unit 52 is inserted into the slot 500, one end of the circuit layer 522 not covered by the transparent adhesive layer 526 is accommodated in the slot 500, so that the circuit layer 522 and the main circuit board The pad 506 of 50 is in contact. In the present embodiment, the predetermined angle between the first board surface 5200 of the transparent substrate 520 and the main circuit board 50 is 90 degrees, and the light emitting units 52 are equiangularly arranged on the main circuit board 50. The light-emitting units 52 may also be arranged at equal angles according to the required light patterns. However, the light-emitting units 52 arranged at equal angles may increase the light-emitting uniformity of the light-emitting device 3. It should be noted that the solder layer 53 can be disposed between the circuit layer 522 and the pad 506 therebetween (as shown in FIG. 5) to increase the connection strength and electrical connection between the circuit layer 522 and the pad 506. ability. In this way, the light emitting unit 52 is electrically connected to the main circuit board 50.

The driving unit 54 includes a driving circuit board 540 and a driver 542. The driver circuit board 540 can be, for example, but not limited to, a printed circuit board with a copper foil line 5400 pre-wired thereon. The driving circuit board 540 has a substantially rectangular outer shape, and one end of the driving circuit board 540 is formed with a plurality of convex portions 5402, and the copper foil wiring 5400 is also disposed on the convex portion 5402. The protruding portion 5402 is inserted into the through hole 502 such that the driving circuit board 540 is substantially perpendicular to the main circuit board 50, and the copper foil line 5400 is in contact with the bonding pad 506 provided on the main circuit board 50; preferably The solder 53 can be disposed between the copper foil line 5400 and the pad 506 through a soldering process to increase the connection strength and electrical connection capability between the copper foil line 5400 and the pad 506. As a result, the driving unit 54 is electrically connected to the main circuit board 50.

The driver 542 is disposed on the driving circuit board 540 and electrically connected to the copper foil line 5400. The driver 542 is used to drive the light emitting unit 52 to emit light, and the driver 542 can include, for example, an AC/DC converting circuit.

The connection terminal 56 is connected to the driving circuit board 540 and is electrically connected to the copper foil line 5400. In the present embodiment, the light-emitting unit 5 includes two connection terminals 56 as an illustrative example. In actual implementation, the number of connection terminals 56 corresponds to the number of the through holes 420 formed on the bottom wall 42.

Referring to the second and third figures, when the light-emitting device 3 is assembled, the driving unit 54 is located in the accommodating space 44, and the connecting terminal 56 passes through the through hole 420 formed in the bottom wall 42. The connection terminal 56 exposed outside the casing 4 is inserted into an external socket (not shown) to extract electric power required for the light-emitting device 3 to emit light.

The lamp cover 6 is coupled to the housing 4 such that the lighting unit 52 is located between the lamp housing 6 and the main circuit board 50. The lamp cover 6 includes a supporting portion 60 and a plurality of fixing portions 62. The fixing portion 62 is connected to the supporting portion 60 for supporting the fixing portion 62 to a predetermined distance above the main circuit board 50. The bottom edge of the support portion 62 is formed with a plurality of engaging holes 600 that are correspondingly engaged with the buckles 48 formed around the surrounding wall 40 to fix the lamp cover 6 to the housing 4. The fixing portion 62 is correspondingly disposed above the light emitting unit 52 for pressing the light emitting unit 52 to prevent the light emitting unit 52 from being twisted by an external force.

In summary, the light-emitting unit 52 and the driving unit 54 of the light source module 5 of the present disclosure are respectively connected to the main circuit board 50 and electrically connected to the main circuit board 50, which can effectively reduce the assembly of the light source module 5. Difficulty, and the light-emitting unit 52 and the driving unit 54 are electrically connected through the main circuit board 50, and the bonding strength between the light-emitting unit 52, the driving unit 54 and the main circuit board 50 is strong, so that the light source module 5 can be effectively prevented from being impacted by external force. At this time, the light-emitting unit 52 and the driving unit 54 are separated from the main circuit board 50, causing the light-emitting device 3 to fail to emit light. Moreover, the light-emitting unit 52 is inserted and placed on the main circuit board 50 to effectively increase the light-emitting angle of the light-emitting device 3, so as to provide a light source and a light source similar to a halogen light source.

FIG. 7 is a perspective exploded view and a combined view of a light source module according to a second embodiment of the disclosure. The light source module 5A shown in the seventh and eighth embodiments is similar to the light source module 5 of the first embodiment, and the same elements are denoted by the same reference numerals. It should be noted that the difference between the two is that the light source module 5A shown in the seventh and eighth figures further includes a plurality of connectors 7.

The connecting member 7 is connected between the pad 506 of the main circuit board 50 and the circuit layer 522 of the light emitting unit 52. The connecting member 7 is used to make the first board surface 5200 of the transparent substrate 520 of the light emitting unit 52 and the main circuit board. The predetermined angle of 50 is greater than 90 degrees, thereby expanding the distribution angle of the light emitted by the light-emitting unit 52. Of course, in actual implementation, the predetermined angle between the first board surface 5200 of the transparent substrate 520 of the light emitting unit 52 and the main circuit board 50 may also be less than 90 degrees. Next, the connecting member 7 simultaneously electrically connects the pad 506 of the main circuit board 50 and the circuit layer 522 of the light emitting unit 52, and the connecting member 7 is made of a material having conductive properties. The function and related description of each element of the light source module 5A are substantially the same as those of the light source module 5 of the first embodiment, and will not be described herein. The light source module 5A can at least achieve the same function as the light source module 5.

Of course, the light source module 5A can also be combined with the housing 4 and the lamp cover 6 of the first embodiment to form a light-emitting device, and the light-emitting device having the light source module 5A can also be the same as the light-emitting device 3 of the first embodiment. The function.

However, the above description is only a preferred embodiment of the present disclosure, and the scope of the present invention is not limited thereto, that is, the equivalent variation and modification of the scope of the patent application of the present invention should still belong to the patent of the present invention. Covers the scope of intent to protect.

5‧‧‧Light source module

50‧‧‧ main board

500‧‧‧ slots

502‧‧‧through hole

504‧‧‧Circuit wiring

506‧‧‧ solder pads

51‧‧‧ board

52‧‧‧Lighting unit

520‧‧‧Transparent substrate

5200‧‧‧ first board

5202‧‧‧ second board

522‧‧‧ circuit layer

524‧‧‧Light Emitting Diode Grains

526‧‧‧Transparent rubber layer

54‧‧‧ drive unit

540‧‧‧Drive circuit board

5400‧‧‧ copper foil line

5402‧‧‧ convex

542‧‧‧ drive

56‧‧‧Connecting terminal

Claims (16)

A light source module comprising:
a main circuit board having a plurality of through holes formed therein;

a plurality of light emitting units, each of the light emitting units comprising:

a transparent substrate comprising a first board surface and a second board surface opposite to the first board surface, the transparent substrate is disposed on the main circuit board, and the first board surface of the transparent substrate and the main circuit a predetermined angle of the plate clamp;

a circuit layer disposed on the first board surface;

a plurality of light emitting diode dies disposed on the first board surface and electrically connected to the circuit layer;

a transparent adhesive layer disposed on the first plate surface and the second plate surface, and covering the light emitting diode die and a portion of the circuit layer;

A drive unit containing:

a driving circuit board comprising a plurality of protrusions, wherein the protrusions are correspondingly inserted in the through holes, so that the driving circuit board is substantially perpendicular to the main circuit board and electrically connected to the main circuit board;

A driver is disposed on the driving circuit board and electrically connected to the driving circuit board.
The light source module of claim 1, wherein the main circuit board has a plurality of slots, and the transparent substrates are correspondingly inserted in the slots. The light source module of claim 2, wherein the predetermined angle is 90 degrees. The light source module of claim 1, further comprising a plurality of connecting members disposed between the main circuit board and the circuit layer for connecting the main circuit board and the light emitting unit, and electrically connecting the main circuit board and the Circuit layer. The light source module of claim 4, wherein the predetermined angle is greater than 90 degrees. The light source module of claim 1, further comprising a plurality of connection terminals connected to the driving circuit board. The light source module of claim 1, wherein the light emitting units are equiangularly arranged on the main circuit board. A light emitting device comprising:
A casing includes a surrounding wall and a bottom wall connected to the surrounding wall. The surrounding wall and the bottom wall cooperate to define an accommodating space and an opening communicating with the accommodating space, and the bottom wall is formed with a plurality of perforation;

A light source module comprising:

a main circuit board, the opening is closed, and a plurality of through holes are formed on the main circuit board;

a plurality of light emitting units, each of the light emitting units comprising:

a transparent substrate comprising a first board surface and a second board surface opposite to the first board surface, the transparent substrate is disposed on the main circuit board, and the first board surface of the transparent substrate and the main circuit a predetermined angle of the plate clamp;

a circuit layer disposed on the first board surface;

a plurality of light emitting diode dies disposed on the first board surface and electrically connected to the circuit layer;

a transparent adhesive layer disposed on the first plate surface and the second plate surface, and covering the light emitting diode die and a portion of the circuit layer;

a driving unit, located in the accommodating space, the driving unit comprises:

a driving circuit board comprising a plurality of protrusions, wherein the protrusions are correspondingly inserted in the through holes, so that the driving circuit board is substantially perpendicular to the main circuit board and electrically connected to the main circuit board;

A driver is disposed on the driving circuit board and electrically connected to the driving circuit board.
The illuminating device of claim 8, wherein the main circuit board has a plurality of slots, and the transparent substrates are correspondingly inserted in the slots. The illuminating device of claim 9, wherein the predetermined angle is 90 degrees. The illuminating device of claim 8, further comprising a plurality of connecting members disposed between the main circuit board and the circuit layer for connecting the main circuit board and the light emitting unit, and electrically connecting the main circuit board and the circuit Floor. The illuminating device of claim 11, wherein the predetermined angle is greater than 90 degrees. The illuminating device of claim 8, further comprising a plurality of connecting terminals connected to the driving circuit board and extending through the through holes. The illuminating device of claim 8, wherein the illuminating units are equiangularly arranged on the main circuit board. The illuminating device of claim 8, further comprising a lamp cover, the lamp cover being coupled to the housing such that the illuminating unit is located between the main circuit board and the lamp cover. The illuminating device of claim 15, wherein the lamp cover comprises a supporting portion and a plurality of fixing portions, the supporting portion is connected to the fixing portions, the supporting portion is connected to the housing, and the fixing portions have a predetermined distance The grounding member is supported on the main circuit board, and the fixing portions are correspondingly disposed above the light emitting units.