CN113079625B - Power-free high-voltage flexible circuit board and lamp strip thereof - Google Patents

Power-free high-voltage flexible circuit board and lamp strip thereof Download PDF

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Publication number
CN113079625B
CN113079625B CN202110512466.XA CN202110512466A CN113079625B CN 113079625 B CN113079625 B CN 113079625B CN 202110512466 A CN202110512466 A CN 202110512466A CN 113079625 B CN113079625 B CN 113079625B
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rectifier bridge
type
conductive unit
conductive
circuit board
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CN113079625A (en
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罗绍静
卢欣欣
李定国
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Guangdong Shunde Siry Technology Co ltd
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Guangdong Shunde Siry Technology Co ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
    • H05K1/0298—Multilayer circuits
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • 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)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention relates to the field of lamp strips, in particular to a power-free high-voltage flexible circuit board and a lamp strip thereof. Exempt from power flexible line way board, from the top down has set gradually top conducting layer, basic unit and bottom conducting layer, the top conducting layer includes a plurality of rectifier bridge module, a plurality of wiring module and a plurality of conductive module, a plurality of wiring module distributes along flexible line way board length direction equidistance, is provided with rectifier bridge module and conductive module between per two adjacent wiring modules, rectifier bridge module and conductive module imbed each other. The flexible circuit board does not need to be provided with a direct current power supply, and can be directly connected with 220V alternating current through a power plug during use, so that the power connection is convenient. And the power line is easier to hide during installation, so that the occasions for installing the flexible circuit board are more attractive, and the flexible circuit board can be applied to occasions such as cabinets and the like.

Description

Power-free high-voltage flexible circuit board and lamp strip thereof
Technical Field
The invention relates to the field of lamp strips, in particular to a power-free high-voltage flexible circuit board and a lamp strip thereof.
Background
The lamp strip is characterized in that lamp beads and/or resistors are assembled on a strip-shaped flexible circuit board or a PCB hard board, and the product is named as a strip. Because the service life is long (the normal service life is 8 to 10 ten thousand hours), the energy is saved, the environment is protected, and the brand-head of people is gradually exposed in various decoration industries.
Original paper such as lamp pearl, resistance, electric capacity generally all have the leg, with the leg welding on the pad of flexible line way board, after lamp area input voltage, lamp pearl, resistance or electric capacity in the lamp area can be switched on to the electric current for the lamp area can normally work. The resistor installed on the lamp strip can play a role in voltage division.
In the prior art, many lamp belts can not directly use the domestic alternating current of plug access 220V, need set up the power in addition for be difficult to hide power and power cord when installing the lamp belt, also be convenient for connect the electricity. And the density of the conductive units on the surface of the flexible circuit board is lower, so that the area utilization rate of the flexible circuit board is low.
Disclosure of Invention
The invention aims to overcome at least one defect (deficiency) of the prior art, and provides a power-free high-voltage flexible circuit board and a lamp strip thereof, which are used for solving the technical problems that a power line is difficult to hide and power connection is inconvenient when the lamp strip is installed.
The invention provides a power-free flexible circuit board, which is sequentially provided with a top conducting layer, a base layer and a bottom conducting layer from top to bottom, wherein the top conducting layer comprises a plurality of rectifier bridge modules, a plurality of wiring modules and a plurality of conducting modules, the plurality of wiring modules are distributed at equal intervals along the length direction of the flexible circuit board, the rectifier bridge modules and the conducting modules are arranged between every two adjacent wiring modules, the rectifier bridge modules and the conducting modules are embedded with each other,
the rectifier bridge module is provided with a plurality of rectifier bridge pads, lamp bead pads and/or resistance pads, the conductive module is provided with a plurality of lamp bead pads and/or resistance pads, and the lamp bead pads and/or resistance pads arranged on the rectifier bridge module are opposite to the lamp bead pads and/or resistance pads arranged on the conductive module in two-two positions.
The conductive module is used for installing lamp beads and/or resistors, and the rectifier bridge module is used for installing a rectifier bridge.
The lamp beads arranged on the flexible circuit board are LED lamp beads which can only normally work under the condition of direct current. If the LED lamp pearl is directly switched on through 220V's alternating current, will lead to the lamp pearl to harm unable work, so flexible line way board should insert the direct current or through rectifier bridge with 220V's alternating current conversion to direct current.
And a rectifier bridge bonding pad on the rectifier bridge module is used for mounting a rectifier bridge, and the rectifier bridge is provided with a positive electrode and a negative electrode. The rectifier bridge module is connected with the conductive module through lamp beads and/or resistors, the lamp beads and/or the resistors are installed on two lamp bead bonding pads and/or resistor bonding pads opposite in position, one of the lamp bead bonding pads and/or the resistor bonding pads is arranged on the rectifier bridge module, and the other lamp bead bonding pad and/or the resistor bonding pad is arranged on the lamp bead bonding pad and/or the resistor bonding pad on the conductive module. The wiring module is used for externally connecting 220V alternating current and inputting the alternating current into a rectifier bridge on the rectifier bridge module, and the rectifier bridge arranged on the rectifier bridge module converts the alternating current into direct current, outputs the direct current from the positive pole of the rectifier bridge to the conductive module and then flows into the negative pole of the rectifier bridge to form a current loop. Alternating current input into the flexible circuit board is converted into direct current through the rectifier bridge, and the conductive module is conducted through the lamp beads and/or the resistors connected with the rectifier bridge module and the conductive module, so that the lamp beads arranged on the conductive module emit light.
The flexible circuit board does not need to be provided with a direct current power supply, and can be directly connected with 220V alternating current through a power plug during use, so that the power connection is convenient. Meanwhile, the flexible circuit board is not required to be provided with a power supply, and only household alternating current is required to be accessed through a power line and a power plug connected with the power line, so that the power line is easy to hide during installation, the flexible circuit board is more attractive in installation occasions, and the flexible circuit board can be applied to occasions such as cabinets.
The rectifier bridge module is embedded into the conductive module, so that the area utilization rate of the flexible circuit board is improved, more lamp beads can be mounted on the flexible circuit board in unit area, and the length and the width of the flexible circuit board are reduced.
Further, the bottom conducting layer comprises a positive conducting unit and a negative conducting unit which are arranged along the width direction of the flexible circuit board.
Furthermore, the wiring module comprises two wiring units arranged along the width direction of the flexible circuit board, each wiring unit is provided with two wiring pads arranged along the length direction of the flexible circuit board, the wiring pads respectively arranged on the two wiring units are opposite to each other in position along the width direction of the flexible circuit board,
two wiring pads on one wiring unit penetrate through the base layer and are communicated with the positive electrode conductive unit of the bottom conductive layer, and two wiring pads on the other wiring unit penetrate through the base layer and are communicated with the negative electrode conductive unit of the bottom conductive layer.
Four wiring pads arranged on the same wiring module are arranged in two rows and two columns.
Two wiring units on the same wiring module are respectively connected with the positive electrode conductive unit and the negative electrode conductive unit in parallel through wiring pads communicated with the bottom conductive layer, and the bottom conductive layer is conducted after the wiring module is connected with 220V alternating current household electricity.
Preferably, the rectifier bridge module comprises a first type rectifier bridge conductive unit, a second type rectifier bridge conductive unit, a third type rectifier bridge conductive unit and a rectifier bridge pad arranged on the base layer; the first type of rectifier bridge conductive units and the second type of rectifier bridge conductive units are sequentially arranged along the length direction of the flexible circuit board, the first type of rectifier bridge conductive units and the third type of rectifier bridge conductive units are sequentially arranged along the width direction of the flexible circuit board, the second type of rectifier bridge conductive units and rectifier bridge bonding pads arranged on the base layer are sequentially arranged along the width direction of the flexible circuit board, the third type of rectifier bridge conductive units and rectifier bridge bonding pads arranged on the base layer are sequentially arranged along the length direction of the flexible circuit board,
the first type rectifier bridge conductive unit, the second type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are all provided with a rectifier bridge bonding pad, the rectifier bridge bonding pad on the first type rectifier bridge conductive unit is adjacent to the rectifier bridge bonding pad on the second type rectifier bridge conductive unit along the length direction of the flexible circuit board, the rectifier bridge bonding pad on the first type rectifier bridge conductive unit is opposite to the rectifier bridge bonding pad on the third type rectifier bridge conductive unit along the width direction of the flexible circuit board,
the rectifier bridge bonding pad arranged on the base layer is adjacent to the rectifier bridge bonding pad arranged on the third type of rectifier bridge conductive unit along the length direction of the flexible circuit board,
the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are also provided with lamp bead pads, the lamp bead pads arranged on the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are opposite to the lamp bead pads on the conductive module in pairs,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer and is communicated with the positive electrode conductive unit of the bottom conductive layer, the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer and is communicated with the negative electrode conductive unit of the bottom conductive layer, or,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer to be communicated with the negative conductive unit of the bottom conductive layer, and the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer to be communicated with the positive conductive unit of the bottom conductive layer.
As one implementation mode, the first type of rectifier bridge conductive units and the second type of rectifier bridge conductive units are arranged at positions close to the upper edge of the flexible circuit board and are sequentially arranged along the length direction of the flexible circuit board, and the third type of rectifier bridge conductive units are arranged at positions close to the lower edge of the flexible circuit board.
The rectifier bridge bonding pad on the second type of rectifier bridge conductive unit is connected with the positive electrode conductive unit of the bottom conductive layer in parallel, and the rectifier bridge bonding pad arranged on the base layer is connected with the negative electrode conductive unit of the bottom conductive layer in parallel, or the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit is connected with the negative electrode conductive unit of the bottom conductive layer in parallel, and the rectifier bridge bonding pad arranged on the base layer is connected with the positive electrode conductive unit of the bottom conductive layer in parallel.
The rectifier bridge is generally provided with four solder tails, which are respectively mounted on four rectifier bridge bonding pads arranged on the first type rectifier bridge conductive unit, the second type rectifier bridge conductive unit, the third type rectifier bridge conductive unit and the base layer.
Furthermore, the conductive module comprises a first type conductive unit, a plurality of second type conductive units and a third type conductive unit which are sequentially arranged along the length direction of the flexible circuit board, the first type conductive unit, the second type conductive unit and the third type conductive unit respectively comprise an upper end part, a connecting part and a lower end part which are sequentially connected, at least one lamp bead pad is arranged on each of the upper end part and the lower end part,
the lamp bead pad of the upper end part of the first second type conductive unit is opposite to the lamp bead pad of the lower end part of the second type conductive unit in pairs, the lamp bead pad of the upper end part of the first type conductive unit is opposite to the lamp bead pad of the lower end part of the second type conductive unit in pairs, the lamp bead pad of the lower end part of the first type conductive unit is opposite to the lamp bead pad of the first type rectifier bridge conductive unit in pairs, the lamp bead pad of the upper end part of the third type conductive unit is opposite to the lamp bead pad of the third type rectifier bridge conductive unit in pairs, and the lamp bead pad of the lower end part of the third type conductive unit is opposite to the lamp bead pad of the upper end part of the second type conductive unit in pairs.
The conductive units comprise a first type conductive unit, a second type conductive unit and a third type conductive unit which are S-shaped.
The connecting part of the first type of conductive unit is embedded into the rectifier bridge module, so that the lamp bead pad on the lower end part of the first type of conductive unit is opposite to the lamp bead pad on the first type of rectifier bridge conductive unit, the area utilization rate of the flexible circuit board can be improved, and the width and the length of the flexible circuit board are reduced.
The lamp bead pads which are respectively positioned at the lower end part of the first type of conductive unit and on the first type of rectifier bridge conductive unit and are opposite to each other in two positions are used for installing a lamp bead, the lamp bead is connected with the first type of conductive unit and the first type of rectifier bridge conductive unit, the lamp bead pads which are respectively positioned at the upper end part of the third type of conductive unit and on the third type of rectifier bridge conductive unit and are opposite to each other in two positions are used for installing a lamp bead, the lamp bead is connected with the third type of rectifier bridge conductive unit and the third type of rectifier bridge conductive unit, and the two lamp beads are connected with the rectifier bridge module and the conductive module. Similarly, the first type of conductive unit, the second type of conductive unit and the third type of conductive unit in the conductive module are connected through the lamp beads arranged on the lamp bead bonding pads opposite to each other in position.
When the anode of the rectifier bridge is arranged on the first type of rectifier bridge conductive unit and the cathode of the rectifier bridge is arranged on the third type of rectifier bridge conductive unit, 220V alternating current is input into the flexible circuit board through the wiring module and conducted with the bottom conductive layer, then the rectifier bridge arranged on the rectifier bridge pad is conducted through the rectifier bridge pad on the second type of rectifier bridge conductive unit which is connected with the bottom conductive layer in parallel and the rectifier bridge pad arranged on the base layer, the rectifier bridge converts the 220V alternating current into direct current and then flows out of the anode of the rectifier bridge, the first type of rectifier bridge conductive unit is conducted and connected with the lamp beads of the first type of rectifier bridge conductive unit through the first type of rectifier bridge conductive unit, then the direct current flows into the conductive module and conducts the lamp beads arranged on the conductive module, the lamp beads which are connected with the third type of rectifier bridge conductive unit and the third type of rectifier bridge conductive unit flow into the third type of rectifier bridge conductive unit and return to the cathode of the rectifier bridge, forming a current loop.
When the negative pole of the rectifier bridge is installed on the first type of rectifier bridge conductive unit and the positive pole of the rectifier bridge is installed on the third type of rectifier bridge conductive unit, the direct current converted by the rectifier bridge flows into the conductive module from the third type of rectifier bridge conductive unit of the rectifier bridge module, and flows into the negative pole of the rectifier bridge from the first type of rectifier bridge conductive unit after the lamp beads on the conductive module are conducted.
Further, the IC module is arranged between two adjacent second-type conductive units and comprises three IC conductive units, each IC conductive unit is provided with an IC pad and/or a lamp bead pad and/or a resistance pad, the three IC pads arranged on the three IC conductive units are arranged in a triangular mode on the flexible circuit board, the lamp bead pads arranged on the IC conductive units are opposite to the lamp bead pads of the previous or next second-type conductive unit, and the resistance pads arranged on the IC conductive units are opposite to the resistance pads on the other IC conductive unit.
The IC module is used to mount an IC chip.
The three IC conductive units are respectively a first type IC conductive unit, a second type IC conductive unit and a third type IC conductive unit, the first type IC conductive unit, the second type IC conductive unit and the third type IC conductive unit are all in block shapes, the first type IC conductive unit is arranged at the position close to the upper edge of the flexible circuit board, the second type IC conductive unit and the third type IC conductive unit are arranged at the position close to the lower edge of the flexible circuit board, an IC pad, a resistance pad and a lamp bead pad are sequentially arranged on the first type IC conductive unit along the length direction of the flexible circuit board, a lamp bead pad and an IC pad are sequentially arranged on the second type IC conductive unit along the length direction of the flexible circuit board, and an IC pad and a resistance pad are sequentially arranged on the third type IC conductive unit along the length direction of the flexible circuit board,
the IC bonding pads respectively arranged on the first type IC conductive unit, the second type IC conductive unit and the third type IC conductive unit are arranged in a triangle,
the resistance pad on the first type of IC conductive unit is opposite to the resistance pad on the third type of IC conductive unit, the bead pad on the first type of IC conductive unit is opposite to the bead pad on the lower end part of the next second type of conductive unit, and the bead pad on the second type of IC conductive unit is opposite to the bead pad on the upper end part of the previous second type of conductive unit.
The IC chip generally has three solder tails, which are respectively mounted on three IC pads arranged in a triangle on the first type IC conductive unit, the second type IC conductive unit, and the third type IC conductive unit. The resistors are respectively arranged on two opposite resistor pads on the first type IC conductive unit and the third type IC conductive unit, the lamp beads are respectively arranged on two opposite lamp bead pads on the lower end parts of the first type IC conductive unit and the second type conductive unit, and the lamp beads are respectively arranged on two opposite lamp bead pads on the upper end parts of the second type IC conductive unit and the second type conductive unit. The two lamp beads are connected with the IC module and the conductive module.
The IC chip can stabilize voltage, avoid the too big damage that leads to lamp pearl and resistance of voltage, play the effect that promotes light conversion efficiency simultaneously.
Preferably, the first type rectifier bridge conductive unit, the second type rectifier bridge conductive unit, the third type rectifier bridge conductive unit and a rectifier bridge bonding pad are arranged on the base layer,
the second type rectifier bridge conductive units and the third type rectifier bridge conductive units are sequentially arranged along the length direction of the flexible circuit board, the second type rectifier bridge conductive units and the rectifier bridge bonding pads arranged on the base layer are sequentially arranged along the width direction of the flexible circuit board, the first type rectifier bridge conductive units and the third type rectifier bridge conductive units are sequentially arranged along the width direction of the flexible circuit board, the first type rectifier bridge conductive units and the rectifier bridge bonding pads arranged on the base layer are sequentially arranged along the length direction of the flexible circuit board,
the first type rectifier bridge conductive unit, the second type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are all provided with a rectifier bridge pad, the rectifier bridge pad on the first type rectifier bridge conductive unit is opposite to the rectifier bridge pad on the third type rectifier bridge conductive unit along the width direction of the flexible circuit board, the rectifier bridge pad on the second type rectifier bridge conductive unit is adjacent to the rectifier bridge pad on the third type rectifier bridge conductive unit along the length direction of the flexible circuit board,
the rectifier bridge bonding pad arranged on the base layer is opposite to the rectifier bridge bonding pad arranged on the second type of rectifier bridge conductive unit along the width direction of the flexible circuit board,
the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are also provided with lamp bead pads, the lamp bead pads arranged on the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are opposite to the lamp bead pads on the conductive module in pairs,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer and is communicated with the positive electrode conductive unit of the bottom conductive layer, the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer and is communicated with the negative electrode conductive unit of the bottom conductive layer, or,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer to be communicated with the negative conductive unit of the bottom conductive layer, and the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer to be communicated with the positive conductive unit of the bottom conductive layer.
In another embodiment, the first type of rectifier bridge conductive unit is disposed near the upper edge of the flexible printed circuit board, and the second type of rectifier bridge conductive unit and the third type of rectifier bridge conductive unit are disposed near the lower edge of the flexible printed circuit board and are sequentially arranged along the length direction of the flexible printed circuit board.
The rectifier bridge bonding pad on the second type of rectifier bridge conductive unit is connected with the positive electrode conductive unit of the bottom conductive layer in parallel, and the rectifier bridge bonding pad arranged on the base layer is connected with the negative electrode conductive unit of the bottom conductive layer in parallel, or the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit is connected with the negative electrode conductive unit of the bottom conductive layer in parallel, and the rectifier bridge bonding pad arranged on the base layer is connected with the positive electrode conductive unit of the bottom conductive layer in parallel.
Furthermore, the conductive module comprises a first type conductive unit, a plurality of second type conductive units and a fourth type conductive unit which are sequentially arranged along the length direction of the flexible circuit board, a third type conductive unit is also arranged among the second type conductive units, a plurality of lamp bead pads and resistance pads are arranged on the second type conductive units, the first type conductive unit, the third type conductive unit and the fourth type conductive unit respectively comprise an upper end part, a connecting part and a lower end part which are sequentially connected, and a plurality of lamp bead pads are arranged on the upper end part and the lower end part,
the lamp bead pad on the lower end part of the first type of conductive unit is opposite to the lamp bead pad on the first type of rectifier bridge conductive unit in pairs, the lamp bead pad on the upper end part of the first type of conductive unit is opposite to the lamp bead pad on the second type of conductive unit in pairs, the lamp bead pad on the second type of conductive unit is opposite to the lamp bead pad on the upper end part of the third type of conductive unit or the lower end part of the third type of conductive unit or the lamp bead pad on the other second type of conductive unit in pairs along the width direction of the flexible circuit board, the lamp bead pad on the upper end part of the fourth type of conductive unit is opposite to the lamp bead pad on the third type of rectifier bridge conductive unit in pairs, and the lamp bead pad on the lower end part of the fourth type of conductive unit is opposite to the lamp bead pad on the second type of conductive unit.
The conductive units comprise a first type conductive unit, a second type conductive unit, a third type conductive unit and a fourth type conductive unit.
Two pairs of lamp bead pads opposite in position, which are respectively located on the lower end of the first type of conductive unit and the first type of rectifier bridge conductive unit, are used for installing two lamp beads, the two lamp beads are connected in parallel, the two lamp beads are connected with the first type of conductive unit and the first type of rectifier bridge conductive unit, two pairs of lamp bead pads opposite in position, which are respectively located on the upper end of the fourth type of conductive unit and the third type of rectifier bridge conductive unit, are used for installing the two lamp beads, the two lamp beads are connected in parallel, the two lamp beads are connected with the third type of rectifier bridge conductive unit and the fourth type of rectifier bridge conductive unit, and the four lamp beads are connected with the rectifier bridge module and the conductive module. Similarly, the first type of conductive unit, the second type of conductive unit, the third type of conductive unit and the fourth type of conductive unit in the conductive module are connected through the lamp beads arranged on the lamp bead bonding pads opposite to each other in every two positions and the resistors arranged on the resistor bonding pads opposite to each other in every two positions.
When a first type rectifier bridge conductive unit for installing the rectifier bridge is a positive electrode and a third type rectifier bridge conductive unit is a negative electrode, 220V alternating current is input into a flexible circuit board through a wiring module and is conducted with a bottom conductive layer, then a rectifier bridge arranged on a rectifier bridge welding disc is conducted through a rectifier bridge welding disc on the second type rectifier bridge conductive unit which is connected with the bottom conductive layer in parallel and a rectifier bridge welding disc arranged on a base layer, the rectifier bridge converts the 220V alternating current into direct current and then flows out of the positive electrode of the rectifier bridge, the first type rectifier bridge conductive unit is conducted and connected with two parallel-connected lamp beads of the first type rectifier bridge conductive unit, then the direct current flows into the conductive module and conducts lamp beads and resistors arranged on the conductive module, and the direct current flows into the third type rectifier bridge conductive unit through the two parallel-connected lamp beads which are connected with the fourth type rectifier bridge conductive unit and the third type rectifier bridge conductive unit, and returning to the negative pole of the rectifier bridge to form a current loop.
When the first type of rectifier bridge conductive unit provided with the rectifier bridge is a negative electrode and the third type of rectifier bridge conductive unit is a positive electrode, the direct current converted by the rectifier bridge flows into the conductive module from the third type of rectifier bridge conductive unit of the rectifier bridge module, and flows into the negative electrode of the rectifier bridge from the first type of rectifier bridge conductive unit after the lamp beads on the conductive module are conducted.
The first conductive unit, the third conductive unit and the fourth conductive unit are S-shaped, the second conductive unit is blocky, and the second conductive units are arranged in a staggered mode in two rows along the length direction of the flexible circuit board. The second type of conductive units are connected through resistors arranged on the resistance pads in opposite positions, and the first type of conductive units are connected with the second type of conductive units, the fourth type of conductive units are connected with the second type of conductive units, and the third type of conductive units are connected with the second type of conductive units through two parallel-connected lamp beads arranged on the two pairs of lamp bead pads in opposite positions.
The connecting part of the first type of conductive unit is embedded into the rectifier bridge module, so that the lamp bead pad on the lower end part of the first type of conductive unit is opposite to the lamp bead pad on the first type of rectifier bridge conductive unit, the area utilization rate of the flexible circuit board is improved, and the width and the length of the flexible circuit board are reduced.
The invention also provides a power-free high-voltage lamp strip which is sequentially provided with a top insulating layer, the power-free flexible circuit board and a bottom insulating layer from top to bottom,
and a plurality of lamp beads, resistors and rectifier bridges are respectively arranged on the lamp bead bonding pad, the resistor bonding pad and the rectifier bridge bonding pad of the power-free high-voltage flexible circuit board.
And an IC chip is arranged on the IC module on the power-free high-voltage flexible circuit board.
Exempt from power high-voltage lamp area can be directly through power plug access 220V's domestic alternating current, conveniently connects the electricity, and need not from taking the power, is convenient for hide the power cord during the installation for the installation occasion is more pleasing to the eye, can be used for cupboard etc..
Further, the cuttable length of the lamp strip is 100mm to 300 mm.
The tailorable positions of the lamp strips are two wiring units on the same wiring module, the two lines of wiring pads on the two wiring units are tailorable along the width direction of the flexible circuit board, two sections of lamp strips obtained after the tailorable positions are respectively provided with one line of wiring pads, and when the external power supply is connected, two wiring pads in one line of wiring pads are respectively connected with a power line of the external power supply.
The length of the lamp strip obtained after cutting is the length capable of being cut. The length of tailorring in lamp area can be according to actual demand design to make the lamp area can be applied to multiple occasion. The tailorable length of lamp area is 100mm to 300mm, and the lamp area length that obtains after tailorring is shorter, is short unit lamp area.
Compared with the prior art, the invention has the beneficial effects that:
according to the power-free high-voltage flexible circuit board and the lamp strip thereof, 220V household alternating current can be directly accessed through the power plug, the input alternating current is converted into direct current through the rectifier bridge arranged on the rectifier bridge module, a power supply is not needed, the power line is easy to hide during installation, and the power line is convenient to connect.
And secondly, the conductive module and the rectifier bridge module on the flexible circuit board are embedded into each other, and the conductive units on the conductive module are embedded into each other, so that the area utilization rate of the flexible circuit board can be improved, and the width and the length of the power-free high-voltage flexible circuit board and the lamp strip thereof are reduced.
Finally, the length of tailorring of exempting from power high pressure flexible line way board and lamp area can design according to actual demand, can be applicable to multiple occasion.
Drawings
Fig. 1 is a structure diagram of a flexible wiring board of embodiment 1 of the present invention.
Fig. 2 is a structural view of the top conductive layer of embodiment 1 of the present invention.
Fig. 3 is a structural view of the bottom conductive layer in embodiment 1 of the present invention.
Fig. 4 is a structural diagram of a wiring module of embodiment 1 of the present invention.
Fig. 5 is a structural diagram of a bridge rectifier module according to embodiment 1 of the present invention.
Fig. 6 is a structural view of a second type conductive element of embodiment 1 of the present invention.
Fig. 7 is a structural diagram of an IC module according to embodiment 1 of the present invention.
Fig. 8 is a structural view of a flexible wiring board of embodiment 2 of the present invention.
Fig. 9 is a structural view of the top conductive layer of embodiment 2 of the present invention.
Fig. 10 is a structural diagram of a bridge rectifier module according to embodiment 2 of the present invention.
Fig. 11 is a structural view of a third type conductive element of embodiment 2 of the present invention.
Fig. 12 is a first structural pattern of a light strip of embodiment 3 of the present invention.
Fig. 13 is a second structural view of the light strip according to embodiment 3 of the present invention.
Description of the specific figures: the conductive structure comprises a top conductive layer 1, a rectifier bridge module 10, a first type rectifier bridge conductive unit 101, a second type rectifier bridge conductive unit 102, a third type rectifier bridge conductive unit 103, a rectifier bridge pad 104, a wiring module 11, a wiring unit 111, a wiring pad 112, a conductive module 12, a first type conductive unit 121, a second type conductive unit 122, a third type conductive unit 123, a fourth type conductive unit 124, an upper end 125, a connecting portion 126, a lower end 127, an IC module 13, a first type IC conductive unit 131, a second type IC conductive unit 132, a third type IC conductive unit 133, an IC pad 134, a lamp bead pad 14, a resistor pad 15, a base layer 2, a bottom conductive layer 3, a positive conductive unit 31, a negative conductive unit 32, a lamp bead 4, a resistor 5, a rectifier bridge 6 and an IC chip 7.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1 and fig. 2, this embodiment provides a power-free flexible printed circuit board, which is sequentially provided with a top conductive layer 1, a base layer 2, and a bottom conductive layer 3 from top to bottom, where the top conductive layer 1 includes a plurality of bridge rectifier modules 10, a plurality of wiring modules 11, and a plurality of conductive modules 12, the plurality of wiring modules 11 are equidistantly distributed along a length direction of the flexible printed circuit board, a bridge rectifier module 10 and a conductive module 12 are provided between every two adjacent wiring modules 11, the bridge rectifier module 10 and the conductive module 12 are embedded into each other,
the rectifier bridge module 10 is provided with a plurality of rectifier bridge pads 104, lamp bead pads 14 and/or resistance pads 15, the conductive module 12 is provided with a plurality of lamp bead pads 14 and/or resistance pads 15, and the lamp bead pads 14 and/or resistance pads 15 arranged on the rectifier bridge module 10 are opposite to the lamp bead pads 14 and/or resistance pads 15 arranged on the conductive module 12 in pairs.
The lamp beads arranged on the flexible circuit board are LED lamp beads which can only work normally under the condition of direct current. If the LED lamp pearl is directly switched on through 220V's alternating current, will lead to the lamp pearl to harm unable work, so flexible line way board should insert the direct current or through rectifier bridge with 220V's alternating current conversion to direct current.
The rectifier bridge pad 104 on the rectifier bridge module 10 is used for mounting a rectifier bridge, and the rectifier bridge is provided with a positive electrode and a negative electrode. The rectifier bridge module 10 is connected with the conductive module 12 through lamp beads and/or resistors, the lamp beads and/or the resistors are mounted on two lamp bead pads 14 and/or resistor pads 15 opposite in position, one lamp bead pad 14 and/or resistor pad 15 is arranged on the rectifier bridge module 10, and the other lamp bead pad 14 and/or resistor pad 15 is arranged on the lamp bead pad 14 and/or resistor pad 15 on the conductive module 12. The wiring module 11 is used for externally connecting 220V alternating current and inputting the alternating current into a rectifier bridge on the rectifier bridge module 10, and the rectifier bridge installed on the rectifier bridge module 10 converts the alternating current into direct current, and then outputs the direct current from the positive pole of the rectifier bridge to the conductive module 12 and then flows into the negative pole of the rectifier bridge to form a current loop. Alternating current input into the flexible circuit board is converted into direct current through the rectifier bridge, and the conductive module 12 is conducted through the lamp beads and/or the resistors connected with the rectifier bridge module 10 and the conductive module 12, so that the lamp beads installed on the conductive module 12 emit light.
The flexible circuit board does not need to be provided with a direct current power supply, and can be directly connected with 220V alternating current through a power plug during use, so that the power connection is convenient. Meanwhile, the flexible circuit board is not required to be provided with a power supply, and only needs to be connected with household alternating current through a power line and a power plug connected with the power line, so that the power line is easily hidden during installation, the installation is more attractive in occasions of the flexible circuit board, and the flexible circuit board can be applied to occasions such as cabinets.
The rectifier bridge module 10 and the conductive module 12 are embedded into each other, which is beneficial to improving the area utilization rate of the flexible circuit board, so that more lamp beads can be installed on the flexible circuit board in unit area, and the length and the width of the flexible circuit board are reduced.
Further, as shown in fig. 3, the bottom conductive layer 3 includes a positive conductive element 31 and a negative conductive element 32 arranged in the width direction of the flexible wiring board.
Further, as shown in fig. 4, the wiring module 11 includes two wiring units 111 arranged along the width direction of the flexible printed circuit board, each wiring unit 111 is provided with two wiring pads 112 arranged along the length direction of the flexible printed circuit board, the wiring pads 112 respectively arranged on the two wiring units 111 are opposite to each other in two-by-two positions along the width direction of the flexible printed circuit board,
two of the terminal pads 112 of one of the terminal elements 111 are communicated with the positive electrode conductive element 31 of the bottom conductive layer 3 through the base layer 2, and two of the terminal pads 112 of the other terminal element 111 are communicated with the negative electrode conductive element 32 of the bottom conductive layer 3 through the base layer 2.
The four wiring pads 112 disposed on the same wiring module 11 are arranged in two rows and two columns.
Two wiring units 111 on the same wiring module 11 are respectively connected with the positive electrode conductive unit 31 and the negative electrode conductive unit 32 in parallel through wiring pads 112 which are communicated with the bottom conductive layer 3, and the wiring module 11 is connected with 220V alternating current household electricity to conduct the bottom conductive layer 3.
Preferably, as shown in fig. 5, the rectifier bridge module 10 includes a first type rectifier bridge conductive unit 101 and a second type rectifier bridge conductive unit 102 disposed near the upper edge of the flexible printed circuit board and arranged in sequence along the length direction of the flexible printed circuit board, and a third type rectifier bridge conductive unit 103 disposed near the lower edge of the flexible printed circuit board,
the first type rectifier bridge conductive unit 101, the second type rectifier bridge conductive unit 102 and the third type rectifier bridge conductive unit 103 are all provided with a rectifier bridge pad 104, the rectifier bridge pad 104 on the first type rectifier bridge conductive unit 101 is adjacent to the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 along the length direction of the flexible circuit board, the rectifier bridge pad 104 on the first type rectifier bridge conductive unit 101 is opposite to the rectifier bridge pad 104 on the third type rectifier bridge conductive unit 103 along the width direction of the flexible circuit board,
the bridge rectifier module 10 further includes a bridge rectifier pad 104 disposed on the base layer 2, the bridge rectifier pad 104 disposed on the base layer 2 is adjacent to the bridge rectifier pad 104 disposed on the third type bridge rectifier conductive unit 103 along the length direction of the flexible printed circuit board,
the first type rectifier bridge conductive unit 101 and the third type rectifier bridge conductive unit 103 are also provided with lamp bead pads 14, the lamp bead pads 14 arranged on the first type rectifier bridge conductive unit 101 and the third type rectifier bridge conductive unit 103 are opposite to the lamp bead pads 14 on the conductive module 12 in pairs,
the bridge pad 104 of the second type of bridge conductive element 102 is connected to the positive conductive element 31 of the bottom conductive layer 3 through the base layer 2, the bridge pad 104 of the second type of bridge conductive element is connected to the negative conductive element 32 of the bottom conductive layer 3 through the base layer 2, or,
the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 penetrates through the base layer 2 to be communicated with the negative conductive unit 32 of the bottom conductive layer 3, and the rectifier bridge pad 104 arranged on the base layer 2 penetrates through the base layer 2 to be communicated with the positive conductive unit 31 of the bottom conductive layer 3.
The rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 is connected in parallel with the positive conductive unit 31 of the bottom conductive layer 3, and the rectifier bridge pad 104 on the base layer 2 is connected in parallel with the negative conductive unit of the bottom conductive layer 3, or the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 is connected in parallel with the negative conductive unit 32 of the bottom conductive layer 3, and the rectifier bridge pad 104 on the base layer 2 is connected in parallel with the positive conductive unit of the bottom conductive layer 3.
The rectifier bridge is generally provided with four solder tails, which are respectively mounted on four rectifier bridge pads 104 disposed on the first type rectifier bridge conductive unit 101, the second type rectifier bridge conductive unit 102, the third type rectifier bridge conductive unit 103, and the base layer 2.
Further, the conductive module 12 includes a first conductive unit 121, a plurality of second conductive units 122, and a third conductive unit 123 sequentially arranged along the length direction of the flexible printed circuit board, the first conductive unit 121, the second conductive unit 122, and the third conductive unit 123 each include an upper end 125, a connecting portion 126, and a lower end 127 sequentially connected to each other, at least one bead pad 14 is disposed on each of the upper end 125 and the lower end 127,
two-to-two positions of the bead pad 14 of the upper end 125 of the previous second type conductive unit 122 are opposite to those of the bead pad 14 of the lower end 127 of the next second type conductive unit 122, two-to-two positions of the bead pad 14 of the upper end 125 of the first type conductive unit 121 are opposite to those of the bead pad 14 of the lower end 127 of the next second type conductive unit 122, two-to-two positions of the bead pad 14 of the lower end 127 of the first type conductive unit 121 are opposite to those of the bead pad 14 of the first type rectifier bridge conductive unit 101, two-to-two positions of the bead pad 14 of the upper end 125 of the third type conductive unit 123 are opposite to those of the bead pad 14 of the third type rectifier bridge conductive unit 103, and two-to-two positions of the bead pad 14 of the lower end 127 of the third type conductive unit 123 are opposite to those of the bead pad 14 of the upper end 125 of the previous second type conductive unit 122.
As shown in fig. 6, the conductive units include a first type conductive unit 121, a second type conductive unit 122, and a third type conductive unit 123, all of which are S-shaped. The connecting portion 126 of the first type of conductive unit 121 is embedded in the rectifier bridge module 10, so that the bead pad 14 on the lower end portion 127 of the first type of conductive unit 121 is opposite to the bead pad 14 on the first type of rectifier bridge conductive unit 101, the area utilization rate of the flexible circuit board can be improved, and the width and length of the flexible circuit board are reduced.
The lamp bead pads 14 which are respectively located on the lower end portion 127 of the first type conductive unit 121 and the first type rectifier bridge conductive unit 101 and are opposite in two-two positions are used for mounting a lamp bead, the lamp bead is connected with the first type conductive unit 121 and the first type rectifier bridge conductive unit 101, the lamp bead pads 14 which are respectively located on the upper end portion 125 of the third type conductive unit 123 and the third type rectifier bridge conductive unit 103 and are opposite in two-two positions are used for mounting a lamp bead, the lamp bead is connected with the third type rectifier bridge conductive unit 103 and the third type conductive unit 123, and the two lamp beads are connected with the rectifier bridge module 10 and the conductive module 12. Similarly, the first type conductive unit 121, the second type conductive unit 122 and the third type conductive unit 123 in the conductive module 12 are connected by the lamp beads installed on the lamp bead pads 14 opposite to each other in pairs.
When the first type rectifier bridge conductive unit 101 for installing the rectifier bridge is an anode and the third type rectifier bridge conductive unit 103 is a cathode, 220V ac is input into the flexible circuit board through the wiring module 11 and conducted to the bottom conductive layer 3, then the rectifier bridge installed on the rectifier bridge pad 104 is conducted through the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 connected in parallel to the bottom conductive layer 3 and the rectifier bridge pad 104 arranged on the base layer 2, the rectifier bridge converts the 220V ac into dc and then flows out from the rectifier bridge anode, the first type rectifier bridge conductive unit 101 is conducted to connect the first type conductive unit 121 and the lamp bead of the first type rectifier bridge conductive unit 101, then the dc current flows into the conductive module 12 and conducts the lamp bead installed on the conductive module 12, and flows into the third type rectifier bridge conductive unit 103 through the lamp bead connecting the third type conductive unit 123 and the third type rectifier bridge conductive unit 103, and returning to the negative pole of the rectifier bridge to form a current loop.
When the first type rectifier bridge conductive unit 101 on which the rectifier bridge is installed is a negative electrode and the third type rectifier bridge conductive unit 103 is a positive electrode, the direct current converted by the rectifier bridge flows into the conductive module 12 from the third type rectifier bridge conductive unit 103 of the rectifier bridge module 10, and flows into the rectifier bridge negative electrode from the first type rectifier bridge conductive unit 101 after the lamp bead on the conductive module 12 is conducted.
Further, as shown in fig. 7, the flexible printed circuit board further includes an IC module 13 disposed between two adjacent second-type conductive units 122, the IC module 13 includes three IC conductive units, each IC conductive unit is provided with an IC pad 134 and/or a bead pad 14 and/or a resistance pad 15, the three IC pads 134 respectively disposed on the three IC conductive units are arranged in a triangle on the flexible printed circuit board, the bead pads 14 disposed on the IC conductive units are opposite to the bead pads 14 of the previous or next second-type conductive unit 122, and the resistance pads 15 disposed on the IC conductive units are opposite to the resistance pads 15 on the other IC conductive unit.
The three IC conductive units are respectively a first type IC conductive unit 131, a second type IC conductive unit 132 and a third type IC conductive unit 133, the first type IC conductive unit 131, the second type IC conductive unit 132 and the third type IC conductive unit 133 are all in a block shape, the first type IC conductive unit 131 is arranged at a position close to the upper edge of the flexible circuit board, the second type IC conductive unit 132 and the third type IC conductive unit 133 are arranged at a position close to the lower edge of the flexible circuit board, an IC pad 134, a resistance pad 15 and a lamp bead pad 14 are sequentially arranged on the first type IC conductive unit 131 along the length direction of the flexible circuit board, a lamp bead pad 14 and an IC pad 134 are sequentially arranged on the second type IC conductive unit 132 along the length direction of the flexible circuit board, and an IC pad 134, a lamp bead pad 134 and a lamp bead pad 14 are sequentially arranged on the third type IC conductive unit 133 along the length direction of the flexible circuit board, The resistance pad 15 is provided with a plurality of resistance pads,
the IC pads 134 respectively disposed on the first type IC conductive unit 131, the second type IC conductive unit 132 and the third type IC conductive unit 133 are arranged in a triangle,
the resistance pad 15 on the first type of IC conductive unit 131 is opposite to the resistance pad 15 on the third type of IC conductive unit 133, the bead pad 14 on the first type of IC conductive unit 131 is opposite to the bead pad 14 on the lower end 127 of the second type of conductive unit 122, and the bead pad 14 on the second type of IC conductive unit 132 is opposite to the bead pad 14 on the upper end 125 of the second type of conductive unit 122.
The IC chip generally has three solder tails, which are respectively mounted on three IC pads 134 arranged in a triangle on the first type IC conductive unit 131, the second type IC conductive unit 132 and the third type IC conductive unit 133. A resistor is arranged on two opposite resistor pads 15 respectively positioned on the first type IC conductive unit 131 and the third type IC conductive unit 133, a lamp bead is arranged on two opposite lamp bead pads 14 respectively positioned on the first type IC conductive unit 131 and the lower end 127 of the next second type conductive unit 122, and a lamp bead is arranged on two opposite lamp bead pads 14 respectively positioned on the second type IC conductive unit 132 and the upper end 125 of the previous second type conductive unit 122. The two lamp beads are connected with the IC module 13 and the conductive module 12.
The IC chip can stabilize voltage, avoid the too big damage that leads to lamp pearl and resistance of voltage, play the effect that promotes light conversion efficiency simultaneously.
Example 2
The embodiment provides a power-free high-voltage flexible circuit board, which sequentially comprises a top conductive layer 1, a base layer 2 and a bottom conductive layer 3 from top to bottom.
As shown in fig. 8 and 9, the difference between this embodiment and embodiment 1 is that the top conductive layer 1 of the power-free high-voltage flexible printed circuit board includes a plurality of wiring modules 11 arranged along the length direction of the flexible printed circuit board, and a bridge rectifier module 10 and a conductive module 12 embedded between two adjacent wiring modules 11.
The wiring module 11 and the bottom conductive layer 3 of this embodiment are the same as those of embodiment 1.
In this embodiment, as shown in fig. 10, the bridge rectifier module 10 of the power-free high-voltage flexible printed circuit board includes a first type bridge rectifier conductive unit 101 disposed near the upper edge of the flexible printed circuit board, and a second type bridge rectifier conductive unit 102 and a third type bridge rectifier conductive unit 103 disposed near the lower edge of the flexible printed circuit board and arranged in sequence along the length direction of the flexible printed circuit board,
the first type rectifier bridge conductive unit 101, the second type rectifier bridge conductive unit 102 and the third type rectifier bridge conductive unit 103 are all provided with a rectifier bridge pad 104, the rectifier bridge pad 104 on the first type rectifier bridge conductive unit 101 is opposite to the rectifier bridge pad 104 on the third type rectifier bridge conductive unit 103 along the width direction of the flexible circuit board, the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 is adjacent to the rectifier bridge pad 104 on the third type rectifier bridge conductive unit 103 along the length direction of the flexible circuit board,
the bridge rectifier module 10 further includes a bridge rectifier pad 104 disposed on the base layer 2, the bridge rectifier pad 104 disposed on the base layer 2 is opposite to the bridge rectifier pad 104 disposed on the second type bridge rectifier conductive unit 102 along the width direction of the flexible printed circuit board,
the first type rectifier bridge conductive unit 101 and the third type rectifier bridge conductive unit 103 are also provided with lamp bead pads 14, the lamp bead pads 14 arranged on the first type rectifier bridge conductive unit 101 and the third type rectifier bridge conductive unit 103 are opposite to the lamp bead pads 14 on the conductive module 12 in pairs,
the bridge pad 104 of the second type of bridge conductive element 102 is connected to the positive conductive element 31 of the bottom conductive layer 3 through the base layer 2, the bridge pad 104 of the second type of bridge conductive element is connected to the negative conductive element 32 of the bottom conductive layer 3 through the base layer 2, or,
the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 penetrates through the base layer 2 to be communicated with the negative conductive unit 32 of the bottom conductive layer 3, and the rectifier bridge pad 104 arranged on the base layer 2 penetrates through the base layer 2 to be communicated with the positive conductive unit 31 of the bottom conductive layer 3.
The rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 is connected in parallel with the positive conductive unit 31 of the bottom conductive layer 3, and the rectifier bridge pad 104 on the base layer 2 is connected in parallel with the negative conductive unit of the bottom conductive layer 3, or the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 is connected in parallel with the negative conductive unit 32 of the bottom conductive layer 3, and the rectifier bridge pad 104 on the base layer 2 is connected in parallel with the positive conductive unit of the bottom conductive layer 3.
Further, the conductive module 12 includes a first type conductive unit 121, a plurality of second type conductive units 122, and a fourth type conductive unit 124 sequentially arranged along the length direction of the flexible printed circuit board, a third type conductive unit 123 is further disposed between the plurality of second type conductive units 122, the second type conductive unit 122 is provided with a plurality of bead pads 14 and resistance pads 15, the first type conductive unit 121, the third type conductive unit 123, and the fourth type conductive unit 124 each include an upper end 125, a connecting portion 126, and a lower end 127 sequentially connected, the upper end 125 and the lower end 127 are provided with a plurality of bead pads 14,
the lamp bead pads 14 on the lower end part 127 of the first type of conductive unit 121 are opposite to the lamp bead pads 14 on the first type of rectifier bridge conductive unit 101 in pairs, the lamp bead pads 14 on the upper end part 125 of the first type of conductive unit 121 are opposite to the lamp bead pads 14 on the second type of conductive unit 122 in pairs, the resistor pad 15 on the second type of conductive unit 122 is opposite to the resistor pad 15 on the previous second type of conductive unit 122 in pairs, the lamp bead pad 14 on the second type of conductive unit 122 is opposite to the upper end part 125 of the third type of conductive unit 123 or the lower end part 127 of the third type of conductive unit 123 or the lamp bead pad 14 on the other second type of conductive unit 122 in pairs along the width direction of the flexible circuit board, the lamp bead pad 14 on the upper end part 125 of the fourth type of conductive unit 124 is opposite to the lamp bead pad 14 on the third type of rectifier bridge conductive unit 103, and the lamp bead pad 14 on the lower end part 127 of the fourth type of conductive unit 124 is opposite to the lamp bead pad 14 on the second type of conductive unit 122.
The conductive elements include a first type of conductive element 121, a second type of conductive element 122, a third type of conductive element 123, and a fourth type of conductive element 124.
The two pairs of lamp bead pads 14 which are respectively located at the lower end portion 127 of the first type of conductive unit 121 and opposite to each other on the first type of rectifier bridge conductive unit 101 are used for installing two lamp beads, the two lamp beads are connected in parallel, the two lamp beads are connected with the first type of conductive unit 121 and the first type of rectifier bridge conductive unit 101, the two pairs of lamp bead pads 14 which are respectively located at the upper end portion 125 of the fourth type of conductive unit 124 and opposite to each other on the third type of rectifier bridge conductive unit 103 are used for installing two lamp beads, the two lamp beads are connected in parallel, the two lamp beads are connected with the third type of rectifier bridge conductive unit 103 and the fourth type of conductive unit 124, and the four lamp beads are connected with the rectifier bridge module 10 and the conductive module 12. Similarly, the first type conductive unit 121, the second type conductive unit 122, the third type conductive unit 123 and the fourth type conductive unit 124 in the conductive module 12 are all connected through the lamp beads mounted on the lamp bead pads 14 opposite to each other in pairs and the resistors mounted on the resistor pads 15 opposite to each other in pairs.
When the first type rectifier bridge conductive unit 101 for installing the rectifier bridge is an anode and the third type rectifier bridge conductive unit 103 is a cathode, 220V ac is input into the flexible circuit board through the wiring module 11 and conducted to the bottom conductive layer 3, then the rectifier bridge installed on the rectifier bridge pad 104 is conducted through the rectifier bridge pad 104 on the second type rectifier bridge conductive unit 102 connected in parallel to the bottom conductive layer 3 and the rectifier bridge pad 104 arranged on the base layer 2, the rectifier bridge converts the 220V ac into dc and then flows out from the rectifier bridge anode, the first type rectifier bridge conductive unit 101 is conducted to connect the first type conductive unit 121 and two parallel beads of the first type rectifier bridge conductive unit 101, then the dc flows into the conductive module 12 and conducts the beads and resistors installed on the conductive module 12, and the third type rectifier bridge conductive unit 103 is flowed into the third type rectifier bridge conductive unit 103 through two parallel beads connecting the fourth type conductive unit 124 and the third type rectifier bridge conductive unit 103, and returning to the negative pole of the rectifier bridge to form a current loop.
When the first type rectifier bridge conductive unit 101 on which the rectifier bridge is installed is a negative electrode and the third type rectifier bridge conductive unit 103 is a positive electrode, the direct current converted by the rectifier bridge flows into the conductive module 12 from the third type rectifier bridge conductive unit 103 of the rectifier bridge module 10, and flows into the rectifier bridge negative electrode from the first type rectifier bridge conductive unit 101 after the lamp bead on the conductive module 12 is conducted.
As shown in fig. 11, the first type conductive units 121, the third type conductive units 123 and the fourth conductive units are all S-shaped, the second type conductive units 122 are block-shaped, and the second type conductive units 122 are arranged in two rows in a staggered manner along the length direction of the flexible printed circuit board. The second type of conductive units 122 are connected through resistors mounted on the resistor pads 15 in opposite positions, and the first type of conductive unit 121 is connected with the second type of conductive unit 122, the fourth type of conductive unit 124 is connected with the second type of conductive unit 122, and the third type of conductive unit 123 is connected with the second type of conductive unit 122 through two parallel-connected lamp beads mounted on the two pairs of lamp bead pads 14 in opposite positions.
The connecting portion 126 of the first type of conductive unit 121 is embedded in the rectifier bridge module 10, so that the bead pad 14 on the lower end portion 127 of the first type of conductive unit 121 is opposite to the bead pad 14 on the first type of rectifier bridge conductive unit 101, the area utilization rate of the flexible circuit board is improved, and the width and the length of the flexible circuit board are reduced.
Example 3
As shown in fig. 12 and 13, the present embodiment provides a power-free high-voltage light strip, which is sequentially provided with a top insulating layer, a power-free flexible printed circuit board as described in embodiment 1 or embodiment 2, and a bottom insulating layer from top to bottom,
and a plurality of lamp beads 4, a resistor 5 and a rectifier bridge 6 are respectively arranged on the lamp bead bonding pad 14, the resistor bonding pad 15 and the rectifier bridge bonding pad 104 of the power-free high-voltage flexible circuit board.
And an IC chip 7 is arranged on an IC module 13 on the power-free high-voltage flexible circuit board.
Exempt from power high-voltage lamp area can directly insert 220V's domestic alternating current through power plug, conveniently connects the electricity, and need not from taking the power, is convenient for hide the power cord during the installation for the installation occasion is more pleasing to the eye, can be used to cupboard etc..
Further, the tailorable length of the lamp strip is 100mm to 300 mm.
The positions of the lamp strips which can be cut are two wiring units 111 on the same wiring module 11, two rows of wiring pads 112 on the two wiring units 111 are cut along the width direction of the flexible circuit board, two sections of lamp strips obtained after cutting are respectively provided with one row of wiring pads 112, and when the lamp strips are externally connected with a power supply, the two wiring pads 112 in the row of wiring pads 112 are respectively connected with a power line of an external power supply.
The length of the lamp strip obtained after cutting is the length capable of being cut. The length of tailorring in lamp area can be according to actual demand design to make the lamp area can be applied to multiple occasion. The tailorable length of lamp area is 100mm to 300mm, and the lamp area length that obtains after tailorring is shorter, is short unit lamp area.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.

Claims (7)

1. A power-free high-voltage flexible circuit board is sequentially provided with a top conducting layer, a base layer and a bottom conducting layer from top to bottom, and is characterized in that the top conducting layer comprises a plurality of rectifier bridge modules, a plurality of wiring modules and a plurality of conducting modules, the wiring modules are distributed at equal intervals along the length direction of the flexible circuit board, the rectifier bridge modules and the conducting modules are arranged between every two adjacent wiring modules, the rectifier bridge modules and the conducting modules are embedded into each other,
the rectifier bridge module is provided with four rectifier bridge pads and lamp bead pads and/or resistance pads, the conductive module is provided with a plurality of lamp bead pads and/or resistance pads, and the lamp bead pads and/or resistance pads arranged on the rectifier bridge module are opposite to the lamp bead pads and/or resistance pads arranged on the conductive module in pairs;
the bottom conducting layer comprises a positive conducting unit and a negative conducting unit which are arranged along the width direction of the flexible circuit board;
the wiring module comprises two wiring units arranged along the width direction of the flexible circuit board, each wiring unit is provided with two wiring pads arranged along the length direction of the flexible circuit board, the wiring pads respectively arranged on the two wiring units are opposite to each other in position along the width direction of the flexible circuit board,
two wiring pads on one wiring unit penetrate through the base layer and are communicated with the positive electrode conductive unit of the bottom conductive layer, and two wiring pads on the other wiring unit penetrate through the base layer and are communicated with the negative electrode conductive unit of the bottom conductive layer;
the rectifier bridge module comprises a first type of rectifier bridge conductive unit, a second type of rectifier bridge conductive unit, a third type of rectifier bridge conductive unit and a rectifier bridge bonding pad arranged on the base layer;
the first type of rectifier bridge conductive units and the second type of rectifier bridge conductive units are sequentially arranged along the length direction of the flexible circuit board, the first type of rectifier bridge conductive units and the third type of rectifier bridge conductive units are sequentially arranged along the width direction of the flexible circuit board, the second type of rectifier bridge conductive units and rectifier bridge bonding pads arranged on the base layer are sequentially arranged along the width direction of the flexible circuit board, and the third type of rectifier bridge conductive units and rectifier bridge bonding pads arranged on the base layer are sequentially arranged along the length direction of the flexible circuit board;
the first type rectifier bridge conductive unit, the second type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are all provided with a rectifier bridge bonding pad, the rectifier bridge bonding pad on the first type rectifier bridge conductive unit is adjacent to the rectifier bridge bonding pad on the second type rectifier bridge conductive unit along the length direction of the flexible circuit board, the rectifier bridge bonding pad on the first type rectifier bridge conductive unit is opposite to the rectifier bridge bonding pad on the third type rectifier bridge conductive unit along the width direction of the flexible circuit board,
the rectifier bridge bonding pad arranged on the base layer is adjacent to the rectifier bridge bonding pad arranged on the third type of rectifier bridge conductive unit along the length direction of the flexible circuit board,
the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are also provided with lamp bead pads, the lamp bead pads arranged on the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are opposite to the lamp bead pads on the conductive module in pairs,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer and is communicated with the positive electrode conductive unit of the bottom conductive layer, the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer and is communicated with the negative electrode conductive unit of the bottom conductive layer, or,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer to be communicated with the negative conductive unit of the bottom conductive layer, and the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer to be communicated with the positive conductive unit of the bottom conductive layer.
2. The power-free high-voltage flexible circuit board of claim 1, wherein the conductive module comprises a first conductive unit, a plurality of second conductive units and a third conductive unit which are sequentially arranged along the length direction of the flexible circuit board, the first conductive unit, the second conductive unit and the third conductive unit comprise an upper end part, a connecting part and a lower end part which are sequentially connected, at least one bead pad is arranged on each of the upper end part and the lower end part,
the lamp bead pad of the upper end part of the first second type conductive unit is opposite to the lamp bead pad of the lower end part of the second type conductive unit in pairs, the lamp bead pad of the upper end part of the first type conductive unit is opposite to the lamp bead pad of the lower end part of the second type conductive unit in pairs, the lamp bead pad of the lower end part of the first type conductive unit is opposite to the lamp bead pad of the first type rectifier bridge conductive unit in pairs, the lamp bead pad of the upper end part of the third type conductive unit is opposite to the lamp bead pad of the third type rectifier bridge conductive unit in pairs, and the lamp bead pad of the lower end part of the third type conductive unit is opposite to the lamp bead pad of the upper end part of the second type conductive unit in pairs.
3. The power-free high-voltage flexible circuit board according to claim 1, further comprising an IC module disposed between two adjacent second conductive units, wherein the IC module comprises three IC conductive units, each IC conductive unit is provided with an IC pad and/or a bead pad and/or a resistor pad, the three IC pads disposed on the three IC conductive units are arranged in a triangle on the flexible circuit board, the bead pads disposed on the IC conductive units are opposite to the bead pads of the previous or next second conductive unit, and the resistor pads disposed on the IC conductive units are opposite to the resistor pads of the other IC conductive unit.
4. The power-free high-voltage flexible printed circuit board of claim 1, wherein the bridge rectifier module comprises a first type bridge conductive element, a second type bridge conductive element, a third type bridge conductive element and a bridge rectifier pad disposed on the substrate,
the second type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are sequentially arranged along the length direction of the flexible circuit board, the second type rectifier bridge conductive unit and the rectifier bridge bonding pad arranged on the base layer are sequentially arranged along the width direction of the flexible circuit board, the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are sequentially arranged along the width direction of the flexible circuit board, the first type rectifier bridge conductive unit and the rectifier bridge bonding pad arranged on the base layer are sequentially arranged along the length direction of the flexible circuit board,
the first type rectifier bridge conductive unit, the second type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are all provided with a rectifier bridge bonding pad, the rectifier bridge bonding pad on the first type rectifier bridge conductive unit is opposite to the rectifier bridge bonding pad on the third type rectifier bridge conductive unit along the width direction of the flexible circuit board, the rectifier bridge bonding pad on the second type rectifier bridge conductive unit is adjacent to the rectifier bridge bonding pad on the third type rectifier bridge conductive unit along the length direction of the flexible circuit board,
the rectifier bridge bonding pad arranged on the base layer is opposite to the rectifier bridge bonding pad arranged on the second type rectifier bridge conductive unit along the width direction of the flexible circuit board,
the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are also provided with lamp bead bonding pads, the lamp bead bonding pads arranged on the first type rectifier bridge conductive unit and the third type rectifier bridge conductive unit are opposite to the lamp bead bonding pads on the conductive module in pairs,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer and is communicated with the positive electrode conductive unit of the bottom conductive layer, the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer and is communicated with the negative electrode conductive unit of the bottom conductive layer, or,
the rectifier bridge bonding pad on the second type of rectifier bridge conductive unit penetrates through the base layer to be communicated with the negative conductive unit of the bottom conductive layer, and the rectifier bridge bonding pad arranged on the base layer penetrates through the base layer to be communicated with the positive conductive unit of the bottom conductive layer.
5. The power-free high-voltage flexible circuit board as claimed in claim 4, wherein the conductive module comprises a first type conductive unit, a plurality of second type conductive units and a fourth type conductive unit which are sequentially arranged along the length direction of the flexible circuit board, a third type conductive unit is further arranged between the second type conductive units, a plurality of lamp bead pads and resistance pads are arranged on the second type conductive units, the first type conductive unit, the third type conductive unit and the fourth type conductive unit respectively comprise an upper end portion, a connecting portion and a lower end portion which are sequentially connected, and a plurality of lamp bead pads are arranged on the upper end portion and the lower end portion,
the lamp bead pad on the lower end part of the first type of conductive unit is opposite to the lamp bead pad on the first type of rectifier bridge conductive unit in pairs, the lamp bead pad on the upper end part of the first type of conductive unit is opposite to the lamp bead pad on the second type of conductive unit in pairs, the lamp bead pad on the second type of conductive unit is opposite to the lamp bead pad on the upper end part of the third type of conductive unit or the lower end part of the third type of conductive unit or the lamp bead pad on the other second type of conductive unit in pairs along the width direction of the flexible circuit board, the lamp bead pad on the upper end part of the fourth type of conductive unit is opposite to the lamp bead pad on the third type of rectifier bridge conductive unit in pairs, and the lamp bead pad on the lower end part of the fourth type of conductive unit is opposite to the lamp bead pad on the second type of conductive unit.
6. A power-free high-voltage lamp strip is characterized in that a top insulating layer, a power-free high-voltage flexible circuit board as claimed in any one of claims 1 to 5 and a bottom insulating layer are sequentially arranged from top to bottom,
and a plurality of lamp beads, resistors and rectifier bridges are respectively arranged on the lamp bead bonding pad, the resistor bonding pad and the rectifier bridge bonding pad of the power-free high-voltage flexible circuit board.
7. A power-free high-voltage light strip as claimed in claim 6, wherein the length of the light strip which can be cut is 100mm to 300 mm.
CN202110512466.XA 2021-05-11 2021-05-11 Power-free high-voltage flexible circuit board and lamp strip thereof Active CN113079625B (en)

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CN207334345U (en) * 2017-08-14 2018-05-08 广东顺德施瑞科技有限公司 A kind of high-voltage LED light bar
CN212338973U (en) * 2020-07-16 2021-01-12 江门市亮剑科技照明有限公司 LED high-voltage lamp area of built-in rectifier bridge

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CN207334345U (en) * 2017-08-14 2018-05-08 广东顺德施瑞科技有限公司 A kind of high-voltage LED light bar
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