CN106838662B - LED light source board and LED lamp - Google Patents
LED light source board and LED lamp Download PDFInfo
- Publication number
- CN106838662B CN106838662B CN201710212648.9A CN201710212648A CN106838662B CN 106838662 B CN106838662 B CN 106838662B CN 201710212648 A CN201710212648 A CN 201710212648A CN 106838662 B CN106838662 B CN 106838662B
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- substrate
- light source
- led light
- board
- bearing plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to an LED light source plate which comprises a substrate, a bearing plate and at least two light-emitting units, wherein the bearing plate is arranged on the substrate, the at least two light-emitting units are respectively arranged on one surface of the bearing plate, the bearing plate is made of transparent or semitransparent materials, and part of light rays emitted by the light-emitting units are refracted by the bearing plate and are emitted outwards. The invention also relates to an LED lamp. The LED lamp has the advantages of large light-emitting angle, good heat dissipation performance and high power support.
Description
Technical Field
The invention relates to the lighting technology, in particular to an LED light source plate and an LED lamp.
Background
In the prior art, the package structure of the LED light source can be divided into a forward mounting structure and an inverted mounting structure. In order to dissipate heat, the bottom of the LED light source must be disposed on the heat conductive aluminum substrate, regardless of the front-mount structure or the flip-chip structure. Because the aluminum substrate is opaque, in order to improve the light extraction efficiency, a reflective layer needs to be arranged at the bottom of the LED light source, and the reflective layer reflects the light emitted by the LED light source towards the aluminum substrate towards the direction away from the aluminum substrate. This results in an encapsulated LED light source with an emission angle of less than one hundred and eighty degrees.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the LED light source board capable of emitting light at a large angle is provided, and the LED lamp comprising the LED light source board is further provided.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a LED light source board, includes base plate, loading board and two at least luminescence unit, the loading board set up in on the base plate, two at least luminescence unit set up respectively in on the surface of loading board, the material of loading board is transparent or translucent material, some light warp that luminescence unit sent the loading board refracts and outwards jets out.
The LED lamp comprises a lamp holder body and the LED light source board, wherein the LED light source board is fixed to the top of the lamp holder body, and the bearing plate is arranged close to the edge of the substrate.
The invention has the beneficial effects that:
the light-emitting unit is arranged on the bearing plate made of transparent or semitransparent materials, so that part of light rays emitted by the light-emitting unit are directly refracted by the bearing plate and are emitted outwards, and the other part of light rays are directly emitted from the direction far away from the bearing plate. Because the light of directive loading board is also refracted away, so, this LED light source board compares prior art and can realize that the wide-angle is luminous.
Drawings
FIG. 1 is an exploded view of an LED light source board according to an embodiment of the present invention;
FIG. 2 is an exploded view of an LED lamp according to an embodiment of the present invention;
fig. 3 is a schematic view of an overall structure of an LED light source board disposed on a base body in an LED lamp according to an embodiment of the invention;
fig. 4 is a schematic view of an overall structure of an LED lamp according to an embodiment of the present invention, in which two LED light source boards are disposed on a lamp base body;
FIG. 5 is a view taken along line A-A of FIG. 3;
fig. 6 is a schematic view of an overall structure of an LED lamp according to an embodiment of the present invention after a bulb is assembled.
Description of reference numerals:
1. a substrate; 11. grooving; 2. a carrier plate; 21. a light emitting unit; 3. a packaging layer;
4. a drive circuit; 5. a conductive terminal; 6. a base body; 7. a bulb shell; 8. a support member;
81. a clamping groove.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the light-emitting unit is arranged on the bearing plate made of transparent or semitransparent materials, so that a part of light emitted by the light-emitting unit is refracted by the bearing plate and is emitted outwards, and the light-emitting angle is increased.
Referring to fig. 1 to 6, an LED light source board includes a substrate 1, a carrier plate 2 and at least two light emitting units 21, wherein the carrier plate 2 is disposed on the substrate 1, the at least two light emitting units 21 are respectively disposed on a surface of the carrier plate 2, the carrier plate 2 is made of a transparent or semitransparent material, and a part of light emitted by the light emitting units 21 is refracted by the carrier plate 2 and emitted outward. It will be understood that the light refracted by the carrier plate 2 can be emitted from the bottom or the side wall of the carrier plate 2.
An LED lamp comprises a lamp holder body 6 and the LED light source board, wherein the LED light source board is fixed to the top of the lamp holder body 6, and a bearing plate 2 is arranged close to the edge of a substrate 1.
From the above description, the beneficial effects of the present invention are:
the light-emitting unit is arranged on the bearing plate made of transparent or semitransparent materials, so that part of light emitted by the light-emitting unit is directly refracted by the bearing plate and is emitted outwards, and the other part of light is directly emitted in the direction away from the bearing plate, and the light-emitting unit can emit light in a larger angle compared with the prior art.
Further, a portion of the carrier plate 2 is fixed on the substrate 1, another portion of the carrier plate 2 extends out of the substrate 1, and the light emitting unit 21 is disposed on another portion of the carrier plate 2.
As can be seen from the above description, as a specific structural example, the carrier plate may be partially fixed on the substrate, the portion of the carrier plate not fixed on the substrate extends out of the substrate, and the light emitting unit is disposed on the portion of the carrier plate not fixed on the substrate, i.e., the carrier plate is partially in contact with the substrate and partially suspended, so as to further reduce light loss and improve heat dissipation effect.
Further, the light emitting device further comprises an encapsulation layer 3, wherein the encapsulation layer 3 covers the light emitting unit 21 and a part of the carrier plate 2 adjacent to the light emitting unit 21.
As can be seen from the above description, as a specific structural example, the above encapsulation layer may be added, the encapsulation layer covers the light emitting unit and the portion of the carrier plate adjacent to the light emitting unit, and the light emitted by the light emitting unit can transmit through the encapsulation layer to perform reflection light emission, so as to further increase the light emitting angle.
Further, the encapsulation layer 3 includes a fluorescent material for absorbing light emitted from the light emitting unit and converting the wavelength of the light.
As can be seen from the above description, as a specific structural example, the encapsulation layer may be a fluorescent material, and the fluorescent material may absorb light emitted by the light emitting unit and then emit light with another wavelength, so that different light emitting effects, such as a mixed light emitting effect, and the like, may be obtained according to actual requirements.
Further, the other surface of the carrier plate 2 is covered with the encapsulation layer 3 at a position corresponding to the light emitting unit 21, or;
the packaging layer 3 is covered between the light emitting unit 21 and the carrier plate 2.
As can be seen from the above description, as a specific structural example, the package layer may be disposed on the other surface of the carrier plate where the light emitting unit is disposed, or the package layer covers between the light emitting unit and the carrier plate, so that the light emitted by the light emitting unit can penetrate through the two package layers on the two sides of the carrier plate to perform double-sided reflection light emission, thereby further increasing the light emitting angle.
Further, the substrate 1 and the loading plate 2 are both made of heat conducting materials, and the loading plate 2 is thermally connected with the substrate 1.
Furthermore, the material of the bearing plate is an insulating material, a circuit electrically connected with the light-emitting unit is arranged on the bearing plate, the material of the substrate is a metal material, and a driving circuit connected with the circuit on the bearing plate is arranged on the substrate.
As can be seen from the above description, as a specific structural example, the substrate is made of a heat conductive material with good heat dissipation capability, for example, a common heat dissipation structure can be selected as the substrate of the present invention, and the substrate is thermally connected to the substrate through the carrier plate, so that the substrate not only plays a role of fixing the carrier plate, but also enables the light emitting unit to perform better heat dissipation, and has an advantage of good heat dissipation effect; moreover, the thickness, size and shape of the substrate can be adjusted to change the heat dissipation area and light reflection amount of the substrate so as to control temperature rise and light loss, thereby improving the power of the whole lamp and increasing the power of the whole lamp; in addition, the surface of the substrate can be coated with a luminescent material or grooved, such as with a reflective paint, to reduce light loss.
It should be noted that the thermal connection between the carrier plate 2 and the substrate 1 must have a good thermal conductive effect, and under the condition of different materials, a thermal conductive medium such as a thermal conductive adhesive should be disposed between the carrier plate and the substrate. The heat conduction effect of different materials only contacting each other cannot meet the heat dissipation requirement of the LED light source. The carrier plate 2 may be made of glass, transparent ceramic, or other material with good thermal conductivity and insulation properties. The carrier plate 2 is provided with a circuit electrically connected with the LED light source. Since the carrier plate 2 is made of an insulating material, the substrate 1 may be made of a metal material such as aluminum alloy or copper alloy with good heat conductivity without using an expensive aluminum substrate. The substrate 1 is provided with a drive circuit 4 connected to the circuit on the carrier plate 2.
Furthermore, the substrate 1 is provided with a conductive terminal 5, the conductive terminal 5 is electrically connected with the light emitting unit 21 through a driving circuit 4, and the conductive terminal 5 is used for being electrically connected with an external power supply.
As can be seen from the above description, as a specific structural example, the wiring can be directly formed on the substrate, so as to connect the circuit, thereby achieving a good heat dissipation effect.
In the LED lamp of the present invention:
further, the LED light source lamp further comprises a bulb shell 7, the bulb shell 7 covers the top of the lamp holder body 6 and accommodates the LED light source plate, the edge of the top of the substrate 1 is of an arc-shaped structure corresponding to the bulb shell 7, and the bearing plate 2 is arranged close to the edge of the top of the substrate 1.
As can be seen from the above description, as a specific structural example, the LED lamp may further include a bulb housing, the bottom of the substrate is disposed on the top of the lamp body, the edge of the top of the substrate is designed to be an arc-shaped structure, and the loading plate is disposed near the top edge of the substrate, that is, the loading plate is disposed near the top of the bulb, so as to better emit light outwards.
Furthermore, the number of the LED light source plates is two, at least one of the substrates 1 of the two LED light source plates is provided with a slot 11, and the two LED light source plates are arranged in a crossed manner along the length direction through the slot 11 to form a cross-shaped structure.
As can be seen from the above description, as a specific structural example, two LED light source boards may be provided, one of the LED light source boards may be grooved, and the other LED light source board passes through the groove, so that the two LED light source boards are arranged in a crossed manner and further fixed to the lamp holder body, and preferably, the light emitting heights of the two LED light source boards after the two LED light source boards are arranged in the crossed manner are the same. Preferably, the two LED light source plates arranged in a crossed manner can be in a cross shape, so that the light emitting angle of the whole lamp is further improved, and the shape is unique.
Further, the lamp holder further comprises a support member 8, and the bearing plate 2 is arranged at the top of the lamp holder body 6 through the support member 8.
As can be seen from the above description, as a specific structural example, a supporting member may be added, and the carrier plate is fixed on the supporting member, and then the supporting member is fixed on the top of the base body.
Referring to fig. 1 to 6, a first embodiment of the present invention is:
the LED lamp of this embodiment, including the base body 6, bulb shell 7, support piece 8 and LED light source board, the figure of LED light source board is two, be equipped with fluting 11 on the base plate of one of them LED light source board, another LED light source board passes the fluting, thereby two LED light source boards are along length direction cross arrangement, two LED light source boards after the cross arrangement are cross structure, and the card is fixed in draw-in groove 81 on support piece 8, support piece 8 fixes the top at base body 6, the electric wire that follow-up is used for the electricity to connect can pass out support piece 8 and be connected with the drive assembly electricity of LED lamp. The bulb shell 7 covers the top of the lamp holder body 6 and accommodates the LED light source boards, and the two assembled LED light source boards in the cross structure have the same light emitting height.
The LED light source plate comprises a substrate 1, a bearing plate 2, a fluorescent material and a plurality of light emitting units 21, wherein the conductive terminals 5 are electrically connected with the light emitting units 21 through the driving lines 4, and the conductive terminals 5 are electrically connected with an external power supply. The light emitting units 21 are respectively arranged on the front surface of the bearing plate 2, the bearing plate 2 is made of transparent or semitransparent materials, and a part of light emitted by the light emitting units 21 is refracted by the bearing plate 2 and is emitted outwards. One part of the carrier plate 2 is fixed on top of the substrate 1 and is disposed near the edge of the substrate 1, the other part of the carrier plate 2 extends out of the substrate 1, and the light emitting unit 21 is disposed on the other part of the carrier plate 2. The fluorescent material covers the light emitting unit 21, the portion of the carrier plate 2 adjacent to the light emitting unit, the position of the corresponding light emitting unit on the reverse surface of the carrier plate 2, and the region between the light emitting unit 21 and the carrier plate 2, and is used for absorbing the light emitted by the light emitting unit 21 and converting the wavelength of the light. The material of base plate 1 is the heat conduction material, loading board 2 with base plate 1 hot junction. The conductive terminals 5 are arranged at the bottom of the substrate 1, one end of the driving circuit 4 is electrically connected with the conductive terminals 5, and the other end of the driving circuit 4 is electrically connected with the light-emitting unit 21 arranged at the top of the substrate 1. The top edge of the substrate 1 is of an arc-shaped structure.
In summary, the LED lamp provided by the invention has the advantages of a large light emitting angle, good heat dissipation performance, and high power support.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. An LED light source plate comprises a substrate, a bearing plate and at least two light-emitting units, wherein the bearing plate is arranged on the substrate, and the at least two light-emitting units are respectively arranged on one surface of the bearing plate; one part of the bearing plate is fixed on the substrate, the other part of the bearing plate extends out of the substrate, and the light-emitting unit is arranged on the other part of the bearing plate;
the packaging layer covers the light-emitting unit and the part, adjacent to the light-emitting unit, of the bearing plate, and comprises a fluorescent material which is used for absorbing light emitted by the light-emitting unit and converting the wavelength of the light.
2. The LED light source board as claimed in claim 1, wherein the other surface of the carrier board is covered with the encapsulation layer at a position corresponding to the light emitting unit, or;
the packaging layer is covered between the light-emitting unit and the bearing plate.
3. The LED light source board of claim 1, wherein the substrate and the carrier board are both made of a thermally conductive material, and the carrier board is thermally connected to the substrate.
4. The LED light source board of claim 1, wherein the carrier board is made of an insulating material, the carrier board is provided with a circuit electrically connected to the light emitting unit, the substrate is made of a metal material, and the substrate is provided with a driving circuit connected to the circuit on the carrier board.
5. The LED light source board as claimed in claim 1, wherein the substrate is provided with conductive terminals, the conductive terminals are electrically connected to the light emitting unit through a driving circuit, and the conductive terminals are electrically connected to an external power source.
6. An LED lamp, comprising a lamp holder body, characterized in that, the LED lamp also comprises the LED light source board of any one of claims 1 to 5, the LED light source board is fixed on the top of the lamp holder body, and the bearing board is arranged near the edge of the substrate.
7. The LED lamp of claim 6, further comprising a bulb housing covering the top of the base body and housing the LED light source board, wherein the top edge of the base board is an arc-shaped structure corresponding to the bulb housing, and the carrier board is disposed near the top edge of the base board.
8. The LED lamp as claimed in claim 6 or 7, wherein the number of the LED light source boards is two, at least one of the base boards of the two LED light source boards is provided with a slot, and the two LED light source boards are crossed through the slot along the length direction and form a cross-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212648.9A CN106838662B (en) | 2017-04-01 | 2017-04-01 | LED light source board and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212648.9A CN106838662B (en) | 2017-04-01 | 2017-04-01 | LED light source board and LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106838662A CN106838662A (en) | 2017-06-13 |
| CN106838662B true CN106838662B (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710212648.9A Active CN106838662B (en) | 2017-04-01 | 2017-04-01 | LED light source board and LED lamp |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894891A (en) * | 2009-05-21 | 2010-11-24 | 沈育浓 | LED wafer package and lighting device using same |
| CN103528025A (en) * | 2013-10-29 | 2014-01-22 | 立达信绿色照明股份有限公司 | Lighting lamp buckling structure |
| CN203517712U (en) * | 2013-09-23 | 2014-04-02 | 立达信绿色照明股份有限公司 | Bulb with high heat dissipation performance |
| CN103883895A (en) * | 2013-03-15 | 2014-06-25 | 立达信绿色照明股份有限公司 | LED lamp with large light emission angle |
| CN104359024A (en) * | 2014-10-30 | 2015-02-18 | 四川联恺环保科技有限公司 | Large-angle luminous LED lamp |
| CN103615674B (en) * | 2013-11-16 | 2016-03-02 | 立达信绿色照明股份有限公司 | Large-angle emission LED lamp |
-
2017
- 2017-04-01 CN CN201710212648.9A patent/CN106838662B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894891A (en) * | 2009-05-21 | 2010-11-24 | 沈育浓 | LED wafer package and lighting device using same |
| CN103883895A (en) * | 2013-03-15 | 2014-06-25 | 立达信绿色照明股份有限公司 | LED lamp with large light emission angle |
| CN203517712U (en) * | 2013-09-23 | 2014-04-02 | 立达信绿色照明股份有限公司 | Bulb with high heat dissipation performance |
| CN103528025A (en) * | 2013-10-29 | 2014-01-22 | 立达信绿色照明股份有限公司 | Lighting lamp buckling structure |
| CN103615674B (en) * | 2013-11-16 | 2016-03-02 | 立达信绿色照明股份有限公司 | Large-angle emission LED lamp |
| CN104359024A (en) * | 2014-10-30 | 2015-02-18 | 四川联恺环保科技有限公司 | Large-angle luminous LED lamp |
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| Publication number | Publication date |
|---|---|
| CN106838662A (en) | 2017-06-13 |
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