CN104534342A - LED lamp strip with light emitted uniformly - Google Patents
LED lamp strip with light emitted uniformly Download PDFInfo
- Publication number
- CN104534342A CN104534342A CN201510004479.0A CN201510004479A CN104534342A CN 104534342 A CN104534342 A CN 104534342A CN 201510004479 A CN201510004479 A CN 201510004479A CN 104534342 A CN104534342 A CN 104534342A
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- CN
- China
- Prior art keywords
- positive
- circuit board
- led
- negative polarity
- circuit boards
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
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- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
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- 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Led Device Packages (AREA)
Abstract
An LED lamp strip with light emitted uniformly comprises multiple flexible circuit boards provided with LEDs, a core wire wrapping the circuit boards, and an outer skin wrapping the core wire. Circuits connecting the LEDs and positive and negative bonding pads connected with the circuits are arranged on the circuit boards, positive and negative leads are arranged in the core wire, connecting lines are connected with the positive and negative bonding pads and the positive and negative leads respectively, the circuits are distributed on the two sides of the width direction of the circuit boards, the LEDs are electrically connected through the circuit boards located on the two sides in the width direction, and the positive and negative bonding pads are arranged within the areas of the LEDs at the most tail ends of the two ends of each circuit board respectively. Due to the fact that electrical connecting points do not exist in gap areas between the circuit boards of the lamp strip, the gap distance can be freely adjusted until the LED lamp distance between every two circuit boards is equal to the LED lamp distance in the circuit boards, and the overall emitted light of the lamp strip is uniform.
Description
Technical field
The present invention relates to a kind of strip light fixture, particularly relate to a kind of flexible LED rope light.
Background technology
Existing for the flexible LED rope light decorated or throw light on, as shown in Figure 1, comprise the flexible PCB 01 being provided with LED02, wrap up the heart yearn 03 of described circuit board 01, the crust 04 of cladding core wire 03, circuit board 01 and LED02.Because light bar length is longer, and the electric current that circuit board 01 can bear is limited, and simultaneously also in order to make light bar can need random cutting according to in-site installation size, the circuit board 01 in light bar is subsection setup.The two ends of every section of circuit board 01 are respectively arranged with the both positive and negative polarity pad 012 connect with the circuit 011 in circuit board.The both positive and negative polarity wire 031 running through whole piece light bar is embedded with in heart yearn 03.Each section of circuit board 01 is welded in the both positive and negative polarity pad 012 on circuit board by connecting line 05 one end, one end both positive and negative polarity wire 031 be connected in heart yearn 03 forms electrical connection in parallel.Being formed between each section of circuit board 01 can for the gap d 0 of cutting.Because both positive and negative polarity pad 012 is arranged on the end at circuit board two ends, the solder joint of connecting line 05 and front and back circuit board both positive and negative polarity pad 012 and being all in described gap d 0 with the tie point of heart yearn wire 031.For preventing above-mentioned solder joint and electric connection point in cutting process to be destroyed, described gap d 0 can not be less than certain distance, thus before and after gap d 0, two LED lamp of adjacent two sections of circuit board ends can not be less than certain distance apart from L1.Like this, in the light bar less to light uniformity requirement higher lamp distance, the LED between each section of circuit board is greater than the LED distance in circuit board apart from L1, cause light bar Integral luminous uneven.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides one and can shear and luminous uniform LED.
The present invention solves the technological means that its technical problem adopts:
A kind of luminous uniform LED, comprise the flexible PCB that multistage is provided with LED, the heart yearn of coated described circuit board and the crust of coated described heart yearn, described circuit board is provided with the both positive and negative polarity pad that the circuit that connects each LED is connected with described circuit, both positive and negative polarity wire is provided with in heart yearn, connecting line connects described both positive and negative polarity pad and both positive and negative polarity wire respectively, described circuit is distributed in the both sides in width of circuit board direction, LED is electrically connected by the circuit board of width both sides, and described both positive and negative polarity pad is separately positioned on the region within the least significant end LED of circuit board two ends.
The invention has the beneficial effects as follows: because both positive and negative polarity pad of the present invention is separately positioned on the region within the least significant end LED of circuit board two ends, region within the least significant end LED of circuit board two ends, there is not electric connection point in the void area in light bar between each section of circuit board, clearance distance can freely adjust, even if also can by the LED between two sections of circuit boards apart from being arranged to the LED in circuit board apart from identical in less light bar at lamp, light bar Integral luminous be even.
As a modification of the present invention, described both positive and negative polarity pad is separately positioned on the circuit of both sides, width of circuit board direction.
As a modification of the present invention, described both positive and negative polarity pad is separately positioned between circuit board least significant end LED and the second LEDs.
As a modification of the present invention, the connected mode of LED is be connected in series after every two parallel connections again.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing LED;
Fig. 2 is the structural representation of light bar of the present invention;
Fig. 3 is the electrical block diagram that the present invention adopts series-parallel connection to connect;
Fig. 4 is that the present invention adopts the electrical block diagram be connected in series;
Fig. 5 is the structural representation in Fig. 4 A-A cross section.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the present invention is described further:
With reference to figure 2, a kind of luminous uniform LED, comprises the flexible PCB 1 that multistage is provided with LED2, the heart yearn 3 of coated described circuit board 1 and the crust 4 of coated described heart yearn.
Referring to figs. 2 and 3, described circuit board 1 with the flexible insulating material such as polyimides or polyester film for base material, printing on substrates has Copper Foil as circuit 11, positive and negative electrode circuit 11 is distributed in the both sides on circuit board 1 width and extends along its length, and the circuit of both sides arranges a partition 13 to form multiple circuit section 15 every a segment distance.LED2 on circuit board 1 can adopt series-parallel connection as shown in Figure 3 to connect, namely each circuit section 15 is parallel with two LEDs 2, LED2 both positive and negative polarity lamp base adopts Reflow Soldering to be welded on the circuit 11 of both sides on circuit board 1 width respectively, can series resistance 6 or direct design Copper Foil 14 be electrically connected as required between circuit section 15.Certainly, described LED2 also with being connected in series as shown in Figure 4, namely only can weld a LEDs 2 on each circuit section 15, and between each circuit section, series resistance 6 or direct design Copper Foil 14 are electrically connected.The object of series resistance 6 is to protect LED2, prevents LED2 from being burnt by current fluctuation.Adopt the circuit structure that series-parallel connection connects, even if LEDs 2 open circuit, electric current also can be transmitted by same and another LEDs of joint group, and avoid causing whole string LED2 not work because of a LEDs open circuit, reliability is higher.The most circuit 11 between end LED21 with the second LEDs 22 at circuit board 1 two ends arranges the both positive and negative polarity pad 12 be connected with circuit 11, and both positive and negative polarity pad 12 is distributed on the circuit 11 of circuit board 1 width both sides respectively.Because LED has the current characteristics of one-way conduction, described positive and negative electrode circuit 11 and both positive and negative polarity pad 12 arbitrarily can adjust according to the polar orientation of LED.When welding three LEDs 2 in each circuit section 15 and being in parallel, also described both positive and negative polarity pad can be arranged between end second LEDs 2 and the 3rd LEDs 2; Or the circuit 11 passed through designs other regions be arranged on by described pad 12 within least significant end LED21.
Referring to figs. 2 and 5, the coated described multistage circuit board 1 of heart yearn 3, for after populated circuit board 1, before coated outside 4, for circuit board 1 and LED2 provide protection, simultaneously also for each section of circuit board 1 provides power supply.The both sides of heart yearn 1 interior circuit board 1 are embedded with the both positive and negative polarity wire 31 be connected with external power source respectively.Circuit board 1 is embedded in heart yearn 3, within pad 12 is arranged on most latter end LED21, circuit board 1 end 16 does not have pad 12, do not need to consider that size is reserved in cutting, can arbitrarily adjust between each circuit board 1 gap d equal with the lamp distance h1 in circuit board 1 to adjacent two LEDs 21 lamps of front and back two circuit board 1 head and the tail apart from h.Connecting line 5 one end is welded on the both positive and negative polarity pad 12 on described circuit board 1, and the other end is wound in both positive and negative polarity wire 31, is formed and be connected in parallel circuit between circuit board 1.Connecting line 5 does not preferably fall within described space d with the winding position of both positive and negative polarity wire 31 yet, but is arranged on the region within the least significant end LED of circuit board two ends, for cutting reserves greater room.Crust 4 adopts continuously extruded technological forming, and installed by circuit board 1 and be better than after in heart yearn 3, by plastic extruder, extrude the coated described heart yearn 3 of transparent plastic, circuit board 1 and LED2, provide outermost protection and moulding.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (5)
1. the uniform LED of luminescence, comprise the flexible PCB that multistage is provided with LED, the heart yearn of coated described circuit board and the crust of coated described heart yearn, described circuit board is provided with the both positive and negative polarity pad that the circuit that connects each LED is connected with described circuit, both positive and negative polarity wire is provided with in heart yearn, connecting line connects described both positive and negative polarity pad and both positive and negative polarity wire respectively, it is characterized in that: described circuit is distributed in the both sides in width of circuit board direction, LED is electrically connected by the circuit board of width both sides, described both positive and negative polarity pad is separately positioned on the region within the least significant end LED of circuit board two ends.
2. a kind of luminous uniform LED according to claim 1, is characterized in that: described both positive and negative polarity pad is separately positioned on the circuit of both sides, width of circuit board direction.
3. a kind of luminous uniform LED according to claim 1 and 2, is characterized in that: the tie point of described connecting line and described heart yearn both positive and negative polarity wire is arranged on the region within the least significant end LED of circuit board two ends.
4. a kind of luminous uniform LED according to claim 1 and 2, is characterized in that: described both positive and negative polarity pad is separately positioned between circuit board two ends least significant end LED and the second LEDs.
5. a kind of luminous uniform LED according to claim 1 and 2, is characterized in that: the connected mode of LED is be connected in series after every two parallel connections again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004479.0A CN104534342A (en) | 2015-01-01 | 2015-01-01 | LED lamp strip with light emitted uniformly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004479.0A CN104534342A (en) | 2015-01-01 | 2015-01-01 | LED lamp strip with light emitted uniformly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104534342A true CN104534342A (en) | 2015-04-22 |
Family
ID=52849928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510004479.0A Pending CN104534342A (en) | 2015-01-01 | 2015-01-01 | LED lamp strip with light emitted uniformly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104534342A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782789A (en) * | 2016-04-29 | 2016-07-20 | 郭垣成 | FPC/COB light band and manufacturing method thereof |
| CN107859906A (en) * | 2017-12-07 | 2018-03-30 | 江门黑氪光电科技有限公司 | A kind of water-proof LED lamp belt |
| CN110307477A (en) * | 2019-08-05 | 2019-10-08 | 厦门集长新材料科技有限公司 | A kind of constant-voltage LED light bar cut |
| CN113090968A (en) * | 2015-10-26 | 2021-07-09 | J·P·霍夫曼 | Linear area of LED lamp, mounting structure and clip subassembly |
-
2015
- 2015-01-01 CN CN201510004479.0A patent/CN104534342A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090968A (en) * | 2015-10-26 | 2021-07-09 | J·P·霍夫曼 | Linear area of LED lamp, mounting structure and clip subassembly |
| CN113090968B (en) * | 2015-10-26 | 2023-06-23 | J·P·霍夫曼 | LED lamp linear belt, mounting structure and clip assembly |
| CN105782789A (en) * | 2016-04-29 | 2016-07-20 | 郭垣成 | FPC/COB light band and manufacturing method thereof |
| CN107859906A (en) * | 2017-12-07 | 2018-03-30 | 江门黑氪光电科技有限公司 | A kind of water-proof LED lamp belt |
| CN110307477A (en) * | 2019-08-05 | 2019-10-08 | 厦门集长新材料科技有限公司 | A kind of constant-voltage LED light bar cut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |