CN110345405B - Exchange flexible filament of COB and lamps and lanterns - Google Patents
Exchange flexible filament of COB and lamps and lanterns Download PDFInfo
- Publication number
- CN110345405B CN110345405B CN201910735073.8A CN201910735073A CN110345405B CN 110345405 B CN110345405 B CN 110345405B CN 201910735073 A CN201910735073 A CN 201910735073A CN 110345405 B CN110345405 B CN 110345405B
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- Prior art keywords
- led lamp
- insulating support
- diode
- cob
- flexible filament
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- 241001465382 Physalis alkekengi Species 0.000 title claims description 4
- 239000002184 metal Substances 0.000 claims description 29
- 238000007493 shaping process Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005282 brightening Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S4/00—Lighting devices or systems using a string or strip of light sources
- F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
- F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
- F21S4/24—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
-
- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/04—Resilient mountings, e.g. shock absorbers
-
- 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
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention relates to an alternating current COB flexible filament and a lamp, wherein the alternating current COB flexible filament comprises a flexible insulating support and an LED lamp string arranged on the insulating support, a hollow-out area is arranged in the middle of the insulating support, a plurality of groups of spring pairs are fixedly arranged on the periphery of the hollow-out area, the LED lamp string comprises a plurality of LED lamp strips, each LED lamp strip is fixedly arranged in the hollow-out area through one group of spring pairs, all the LED lamp strips are arranged in series, a rectifying circuit connected with the LED lamp string is further arranged on the insulating support, and the rectifying circuit enables the LED lamp string to be directly connected with alternating current to work so as to solve the problems that the whole LED lamp filament is scrapped and cannot be bent due to dead lamps in the existing series arrangement of the LED lamp filaments.
Description
Technical Field
The invention relates to the field of lighting, in particular to an alternating current COB flexible filament and a lamp.
Background
The LED filament lamp is similar to a common incandescent lamp in shape, can realize nearly 360-degree full-circle light emission, and has the advantages of energy conservation, long service life and high environmental protection compared with the common incandescent lamp. The method is widely applied to the fields of antique decoration, engineering brightening decoration, home illumination and the like.
In the prior art, an LED filament in an LED filament lamp generally encapsulates a plurality of LED chips on a long substrate in a COB (chip-on-board) manner, and all the LED chips on the substrate are serially connected to form a single high-voltage LED filament, so as to facilitate the power driving miniaturization design. And the substrate of the existing LED filament is a hard substrate, so that the LED filament cannot be bent.
Disclosure of Invention
The invention aims to provide an alternating current COB flexible filament, and aims to solve the problems that the whole LED filament is scrapped and cannot be bent due to dead lamps in the conventional LED filament series connection arrangement.
The specific scheme is as follows:
an alternating current COB flexible filament comprises a flexible insulating support and an LED lamp string arranged on the insulating support, wherein a hollowed-out area is arranged in the middle of the insulating support, a plurality of spring pairs are fixedly arranged on the periphery of the hollowed-out area, each spring pair comprises two metal springs which are oppositely arranged, the LED lamp string comprises a plurality of LED lamp strips, each LED lamp strip is fixedly arranged in the hollowed-out area through one spring pair, two adjacent LED lamp strips are electrically connected through one metal sheet, all the LED lamp strips are arranged in series, a first connecting circuit connected with the anode of the LED lamp string, a second connecting circuit connected with the cathode of the LED lamp string and two connecting electrodes connected with an external alternating current power supply are further arranged on the insulating support, a first diode and a second diode are connected on each connecting electrode in a parallel mode, the first diode is connected to the first connecting circuit, the current flow direction of the first diode is conducted from the connecting electrode to the first connecting circuit, the second diode is connected to the second connecting circuit, and the current flow direction of the second diode is conducted from the second connecting circuit to the connecting electrode.
Furthermore, the insulating support is provided with a cavity, and a plastic part for maintaining the deformation of the insulating support is embedded in the cavity.
Further, the plastic part is made of a flexible material with rigidity higher than that of the insulating support.
Further, the plastic part is a rigid part with a specific shape.
Furthermore, two cavities are formed in the insulating support, the two cavities are respectively arranged on two opposite sides of the hollow area fixing spring pair, the metal sheet on the insulating support extends into the cavity on the side, and a conductive part which can be in contact with the metal sheet extending into the cavity is arranged on the outer wall of the shaping part.
The invention also provides a lamp, which comprises a lamp body and the light-emitting part arranged in the lamp body, wherein the light-emitting part is any one of the alternating current COB flexible filaments.
Compared with the prior art, the alternating current COB flexible filament provided by the invention has the following advantages: the alternating current COB flexible filament provided by the invention can be directly connected with alternating current for use, and the LED lamp string is formed by connecting a plurality of LED lamp strips in series, so that under the condition that a certain LED lamp strip is dead, only the corresponding LED lamp strip 2 needs to be replaced, the whole LED lamp string does not need to be replaced, and the cost can be saved. And insulating support is made by flexible material, therefore insulating support can be buckled into certain shape and make many LED lamp strips be certain shape and arrange, and LED lamp strip adopts metal spring to connect on insulating support, and metal spring can play absorbing effect to LED lamp strip, can avoid buckling and damage to LED lamp strip when using, can prolong the life of this interchange COB flexible filament.
Drawings
Fig. 1 shows a schematic of an ac COB flexible filament.
Fig. 2 shows a schematic diagram of a single LED light bar.
Fig. 3 shows a schematic diagram of one current direction of an alternating current in the alternating current COB flexible filament.
Fig. 4 shows a schematic diagram of another current direction of an alternating current in the alternating current COB flexible filament.
Fig. 5 shows a longitudinal cross-sectional view of an ac COB flexible filament.
Figure 6 shows a cross-sectional view of the shaping.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1 and fig. 2, the present embodiment provides an ac COB flexible filament, which includes a flexible insulating support 1 and a plurality of LED light bars 2 mounted on the insulating support.
Specifically, a hollow area 10 is formed in the middle of the insulating support 1, a plurality of groups of spring pairs 11 are distributed on the periphery of the hollow area 10, each group of spring pairs includes two metal springs 110 arranged in opposite directions, two ends of each metal spring 110 are respectively defined as a first end 110a and a second end 110b, wherein the first end 110a is fixedly arranged on the insulating support 1, the second end 110b is a free end, and the second end 110b is arranged towards the other metal spring 110 of the same group of spring pairs 11.
The LED light bar 2 includes a bar-shaped substrate 20 and a plurality of LED chips 21 packaged on the bar-shaped substrate 20 in a COB manner, and two ends of the bar-shaped substrate 20 in the length direction are respectively a positive electrode and a negative electrode of the LED light bar 2. Two ends of each LED light bar 2 are respectively fixed to the second ends 110b of the two springs in the same set of spring pairs 11, and the second ends 110b of the two metal springs are respectively electrically connected to the positive and negative poles of the LED light bar 2. The two adjacent spring pairs 11 are electrically connected through the metal sheet 3 fixedly arranged on the insulating support 1, and all the LED lamp strips are fixed on the insulating support 1 in a series connection mode.
The spring pair 11 in this embodiment can be directly welded to the metal sheet 3 in a welding manner, and the second end 110b of the metal spring can be welded to the positive electrode and the negative electrode of the LED light bar 2 in a welding manner through the electrical connection between the metal spring 110 and the LED light bar 2, so that the metal spring 110 and the LED light bar 2 can be fixed while the electrical connection between the metal spring 110 and the LED light bar 2 is realized.
The insulating support 1 further has a connection circuit and two connection electrodes 13 connected to an external ac power source, the connection circuit includes a first connection circuit 120 connected to the positive electrode of the LED string formed by connecting the LED light bars 2 in series and a second connection circuit 121 connected to the negative electrode of the LED string, each connection electrode 13 is connected to a first diode 140 and a second diode 141 in parallel, two pins of the first diode 140 are connected to the connection electrodes 13 and the first connection circuit 120, respectively, the current flow of the first diode 140 is conducted from the connection electrodes 13 to the first connection circuit 120, two pins of the second diode 141 are connected to the connection electrodes 13 and the second connection circuit 121, respectively, and the current flow of the second diode 141 is conducted from the second connection circuit 121 to the connection electrodes 13.
It should be clear that the reverse voltage of the first diode 140 and the second diode 141 needs to be higher than the voltage of the LED light string, so that the ac COB flexible filament can be directly connected to ac power to operate. Specifically, as shown in fig. 3 and 4, when the two connecting electrodes 13 in fig. 3 and 4 are directly connected with an alternating current, as shown in fig. 3, when the upper electrode 13 is positive and the lower electrode 13 is negative, the current direction is as shown by the arrow in fig. 3. When the upper electrode 13 is negative and the lower electrode 13 is positive, the direction of the current flow is shown by the arrow in fig. 4. Therefore, the first diode 140 and the second diode 141 can perform a rectifying function so that the ac COB flexible filament can directly work with ac power.
The LED lamp cluster in the flexible filament of interchange COB that this embodiment provided is established ties by many LED lamp strip 2 and forms, consequently under the condition of the dead lamp of a certain LED lamp strip 2, only need to change corresponding LED lamp strip 2 can, need not to change whole LED lamp cluster, can practice thrift the cost. Insulating support 1 is made by flexible material, therefore insulating support 1 can buckle into certain shape and make many LED lamp strip 2 be certain shape and arrange, and LED lamp strip 2 adopts metal spring 110 to connect on insulating support 1, and metal spring 110 can play absorbing effect to LED lamp strip 2, can avoid buckling and damage to LED lamp strip 2 when using, can prolong the life of this flexible filament of interchange COB.
As a preferable scheme of this embodiment, referring to fig. 5, the insulating support 1 has a cavity 15, and a shaping member 16 with shaping capability is embedded in the cavity 15, and the shaping member 16 can increase the plasticity and supporting effect of the ac COB flexible filament. Specifically, the plastic 16 may be made of a flexible material having higher rigidity than the insulating support 1, and the plastic 16 may increase the shapeability of the insulating support 1 when the insulating support 1 is bent. Or the shaping member 16 may be a rigid member having a specific shape, and the flexible insulating support 1 is formed into the same shape as the shaping member 16 is deformed.
Preferably, referring to fig. 5 and 6, the insulating support 1 has two cavities 15, two cavities 15 are respectively disposed on two opposite sides of the hollow area 10 where the spring pair 11 is fixed, for example, the hollow area 10 in this embodiment is rectangular, and two cavities 15 are disposed on the long edge of the hollow area 10. The metal sheet 3 extends into the cavity 15, the plastic part 16 embedded in the cavity is made of an insulating material, the outer wall of the plastic part 16 is provided with a conductive part 160 which can be electrically connected with the metal sheet 3 extending into the cavity 15, and the plastic parts 16 in the two cavities 15 can enable all the LED light bars 2 in the hollow area to be arranged in parallel. Normally, the conductive part 160 on the plastic part 16 does not contact with the metal sheet 3, so all the LED light bars 2 in the hollow area are connected in series. And under the condition of dead lamp, the plastic part 16 is rotated or the plastic part 16 is drawn out and embedded in the cavity 15 of the insulating bracket 1 again, so that the conductive part 160 of the plastic part 16 is contacted with the metal sheet 3 extending into the cavity 15, but all the LED lamp strips 2 are arranged in parallel, and therefore, the detection of which LED lamp strip 2 is dead lamp can be facilitated.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides an exchange flexible filament of COB which characterized in that: the LED lamp string comprises a flexible insulating support and an LED lamp string arranged on the insulating support, wherein a hollowed-out area is arranged in the middle of the insulating support, a plurality of spring pairs are fixedly arranged on the periphery of the hollowed-out area, each spring pair comprises two metal springs which are oppositely arranged, the LED lamp string comprises a plurality of LED lamp strips, each LED lamp strip is fixedly arranged in the hollowed-out area through one spring pair, the metal springs are electrically connected with the LED lamp strips, two adjacent LED lamp strips are electrically connected through a metal sheet, all the LED lamp strips are arranged in series, the insulating support is further provided with a first connecting circuit connected with the anode of the LED lamp string, a second connecting circuit connected with the cathode of the LED lamp string and two connecting electrodes connected with an external alternating current power supply, each connecting electrode is connected with a first diode and a second diode in parallel, and the first diode is connected with the first connecting circuit, the current flow direction of the first diode is conducted from the connecting electrode to the first connecting circuit, the second diode is connected to the second connecting circuit, and the current flow direction of the second diode is conducted from the second connecting circuit to the connecting electrode; the insulating support is provided with two cavities which are respectively arranged on two opposite sides of the hollow area fixed spring pair, a metal sheet on the insulating support extends into the cavity on the side, a shaping piece for maintaining the deformation of the insulating support is embedded in the cavities, and the outer wall of the shaping piece is provided with a conductive part which can be contacted with the metal sheet extending into the cavities; under a normal working state, the conductive part on the shaping part is not contacted with the metal sheet, and all the LED lamp strips in the hollow area are arranged in series; under the condition of dead lamp, the shaping piece rotates or the shaping piece is drawn out and is embedded in the cavity of the insulating support again, so that the conductive part of the shaping piece is in contact with the metal sheet extending into the cavity, and all the LED lamp strips are arranged in parallel.
2. The ac COB flexible filament of claim 1, characterized in that: the plastic part is made of flexible material with rigidity higher than that of the insulating support.
3. The ac COB flexible filament of claim 1, characterized in that: the plastic part is a rigid part with a specific shape.
4. The utility model provides a lamp, includes the lamps and lanterns body and installs the luminous piece in the lamps and lanterns body, its characterized in that: the light emitting element is an alternating current COB flexible filament according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735073.8A CN110345405B (en) | 2019-08-09 | 2019-08-09 | Exchange flexible filament of COB and lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735073.8A CN110345405B (en) | 2019-08-09 | 2019-08-09 | Exchange flexible filament of COB and lamps and lanterns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110345405A CN110345405A (en) | 2019-10-18 |
| CN110345405B true CN110345405B (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910735073.8A Active CN110345405B (en) | 2019-08-09 | 2019-08-09 | Exchange flexible filament of COB and lamps and lanterns |
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| Country | Link |
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| CN (1) | CN110345405B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883636A (en) * | 2019-12-06 | 2020-11-03 | 中山市木林森电子有限公司 | Manufacturing method of LED lamp filament |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831505A (en) * | 1987-10-07 | 1989-05-16 | Marcia Van Norman | Circular flourescent tube light fixture for ceiling fan |
| CN203517449U (en) * | 2013-11-06 | 2014-04-02 | 佛山电器照明股份有限公司 | LED (light emitting diode) bulb |
| CN204420699U (en) * | 2015-02-13 | 2015-06-24 | 广德利德光电有限公司 | The carefree Christmans light string of a kind of LED |
| CN208794174U (en) * | 2018-09-12 | 2019-04-26 | 东莞市帝光照明科技有限公司 | A kind of high stability parallel type LED lamp case light source |
| CN210740005U (en) * | 2019-08-09 | 2020-06-12 | 厦门多彩光电子科技有限公司 | Alternating current LED lamp filament and lamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428682Y (en) * | 2000-05-31 | 2001-05-02 | 赖丽纯 | New structure of night lamp |
| CN2771624Y (en) * | 2005-01-31 | 2006-04-12 | 蔡锦添 | Electronic artificial candle |
| US7609006B2 (en) * | 2008-02-18 | 2009-10-27 | Ventur Research And Development Corp. | LED light string with split bridge rectifier and thermistor fuse |
| CN202521356U (en) * | 2012-03-16 | 2012-11-07 | 许有谋 | Light-emitting diode string light applied to SMD (surface mounted device) process |
| CN208478336U (en) * | 2018-07-05 | 2019-02-05 | 代云生 | LED module, flexible filament and light source |
-
2019
- 2019-08-09 CN CN201910735073.8A patent/CN110345405B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831505A (en) * | 1987-10-07 | 1989-05-16 | Marcia Van Norman | Circular flourescent tube light fixture for ceiling fan |
| CN203517449U (en) * | 2013-11-06 | 2014-04-02 | 佛山电器照明股份有限公司 | LED (light emitting diode) bulb |
| CN204420699U (en) * | 2015-02-13 | 2015-06-24 | 广德利德光电有限公司 | The carefree Christmans light string of a kind of LED |
| CN208794174U (en) * | 2018-09-12 | 2019-04-26 | 东莞市帝光照明科技有限公司 | A kind of high stability parallel type LED lamp case light source |
| CN210740005U (en) * | 2019-08-09 | 2020-06-12 | 厦门多彩光电子科技有限公司 | Alternating current LED lamp filament and lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110345405A (en) | 2019-10-18 |
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