Patent Description:
An existing light strip is formed by mounting LEDs on a flexible or hard circuit board. Copper foil of the printed circuit board is connected to LED lamps for power supply and data transmission. <FIG> shows the structure of an existing LED lamp and <FIG> shows the structure of an existing lamp strip. From <FIG>, it can be seen that LED lamps with the same size need a wider circuit board, and the wiring is more chaotic. Due to the packaging structure of the LED lamp, there is often a waste on circuit board materials and the wiring is complicated. It is more difficult to connect by using conventional wires or enameled wires. Since the wires are not parallel, it is difficult to arrange the wires uniformly, and the wires need to be welded segment by segment. The process is complex, and there are many welding points. This leads to problems in later use and poor reliability.

In the document of <NPL>" (<CIT>), a copper wire lamp and a copper wire lamp control method are provided. The copper wire lamp includes a controller, a plurality of lamp beads, a signal transmission main line and a signal transmission auxiliary line. Each lamp bead includes a light emitting chip, an IC chip (Integrated Circuit Chip), five bonding pads and a packaging body. All five bonding pads include weld legs. The first weld leg of a first bonding pad is connected to the signal transmission main line. The second weld leg of the first bonding pad is connected to the signal transmission auxiliary line. The weld leg of a second bonding pad is connected to the signal transmission auxiliary line. The weld leg of a third bonding pad is connected with the signal transmission main line. A first power line and a second power line are adopted to supply power to the plurality of lamp beads. The weld leg of a fourth bonding pad is connected to the first power line. The weld leg of a fifth bonding pad is connected with the second power line. The copper wire lamp and the copper wire lamp control method ensure that the control signal does not have a breakpoint. The subsequent lamp beads can normally work, and meanwhile, the control signal is not disordered, thereby improving the user experience.

The disclosure provides a lamp bead and a lamp strip to overcome the technical shortcoming of complex wiring caused by the packaging structure of the existing LED lamp.

To achieve the above purpose, the disclosure provides the following technical solutions.

A lamp bead is provided, including a packaging housing, one or more LED lamps and an LED lamp driving chip; where.

Optionally, the power positive pole connection terminal, the signal connection terminal and the power negative pole connection terminal are sequentially arranged from top to bottom; or the power negative pole connection terminal, the signal connection terminal and the power positive pole connection terminal are sequentially arranged from top to bottom; or the signal connection terminal, the power positive pole connection terminal and the power negative pole connection terminal are sequentially arranged from top to bottom; or the signal connection terminal, the power negative pole connection terminal and the power positive pole connection terminal are sequentially arranged from top to bottom.

Optionally, the power positive pole connection terminal, the signal connection terminal and the power negative pole connection terminal are in forms of welded pieces, pins and/or terminal blocks.

Optionally, the lamp bead further includes a printed circuit board (PCB), where the LED lamps, the LED lamp driving chip, the power positive pole connection terminal, the signal connection terminal and the power negative pole connection terminal are arranged on the PCB.

Optionally, the LED lamp driving chip is VIPer22A, which is a switching power supply driving chip produced by STMicroelectronics.

A lamp strip includes a plurality of the above lamp beads, where first signal connection terminals and second signal connection terminals of the plurality of lamp beads are sequentially connected in series, power positive pole connection terminals of the plurality of lamp beads are connected with each other, and power negative pole connection terminals of the plurality of lamp beads are connected with each other.

Optionally, the lamp strip further includes a power supply and a controller, where.

Optionally, the power supply, the controller and the plurality of lamp beads are connected through a circuit board, a wire or an enameled wire.

According to specific examples of the disclosure, the disclosure has the following technical effects.

The disclosure provides a lamp bead. The lamp bead includes a packaging housing, one or more LED lamps and an LED lamp driving chip. The LED lamps and the LED lamp driving chip are arranged in the packaging housing. A power positive pole connection terminal, a signal connection terminal and a power negative pole connection terminal which are arranged longitudinally are exposed on an outer side of the bottom of the packaging housing. A first signal end and a second signal end of the LED lamp driving chip are connected to the first signal connection terminal and the second signal connection terminal, respectively. A power positive pole input end and a power negative pole input end of the LED lamp driving chip are connected to the power positive pole connection terminal and the power negative pole connection terminal, respectively. Anodes of the one or more LED lamps are connected to the power positive pole connection terminal; and cathodes of the one or more LED lamps are connected to one or more LED input ends of the LED lamp driving chip in a one-to-one correspondence manner, respectively. In the disclosure, through the packaging structure of the power positive pole connection terminal, the signal connection terminal and the power negative pole connection terminal which are arranged longitudinally, during wiring, power positive pole connection terminals of all beads are in a straight line, power negative pole connection terminals thereof are in a straight line, and signal connection terminals thereof are in a straight line. This simplifies the wiring and overcomes the technical shortcoming of complex wiring caused by the packaging structure of the existing LED lamp.

To describe the technical solutions in the examples of the disclosure or in the prior art more clearly, the following briefly describes the accompanying drawings required for the examples. Apparently, the accompanying drawings in the following description show merely some examples of the disclosure, and a person of ordinary skill in the art may still derive other accompanying drawings from these accompanying drawings without creative efforts.

List of reference numbers:
<NUM> LED lamp; <NUM> LED lamp driving chip; <NUM> printed circuit board (PCB); <NUM> packaging housing; <NUM> power supply; <NUM> controller; <NUM> first signal end; <NUM> second signal end; <NUM> power positive pole input end; <NUM> power negative pole input end; <NUM> LED input end of the LED lamp driving chip; <NUM> first signal connection terminal; <NUM> second signal connection terminal; <NUM> power positive pole connection terminal; <NUM> power negative pole connection terminal; <NUM> power input end; <NUM> power positive pole output end; <NUM> power negative pole output end; <NUM> signal output end.

The following clearly and completely describes the technical solutions in the examples of the disclosure with reference to accompanying drawings in the examples of the disclosure. Apparently, the described examples are merely some rather than all of the examples of the disclosure. All other examples obtained by a person of ordinary skill in the art based on the examples of the disclosure without creative efforts shall fall within the protection scope of the disclosure.

In order to make the foregoing objectives, features, and advantages of the disclosure more understandable, the disclosure will be further described in detail below with reference to the accompanying drawings and specific implementations.

The disclosure provides a lamp bead. The lamp bead includes a packaging housing <NUM>, one or more LED lamps <NUM> and an LED lamp driving chip <NUM>. The LED lamps <NUM> and the LED lamp driving chip <NUM> are arranged in the packaging housing <NUM>. A power positive pole connection terminal <NUM>, a signal connection terminal and a power negative pole connection terminal <NUM> which are arranged longitudinally are exposed on an outer side of the bottom of the packaging housing <NUM>. The signal connection terminal includes a first signal connection terminal <NUM> and a second signal connection terminal <NUM> which are transversely arranged. The power positive pole connection terminal <NUM>, the signal connection terminal and the power negative pole connection terminal <NUM> pass through the bottom of the packaging housing <NUM>. A first signal end <NUM> and a second signal end <NUM> of the LED lamp driving chip <NUM> are connected to the first signal connection terminal <NUM> and the second signal connection terminal <NUM>, respectively. A power positive pole input end <NUM> and a power negative pole input end <NUM> of the LED lamp driving chip <NUM> are connected to the power positive pole connection terminal <NUM> and the power negative pole connection terminal <NUM>, respectively. Anodes of the one or more LED lamps <NUM> are connected to the power positive pole connection terminal <NUM>; and cathodes of the one or more LED lamps <NUM> are connected to one or more LED input ends <NUM> of the LED lamp driving chip <NUM> in a one-to-one correspondence manner, respectively. The power positive pole connection terminal <NUM>, the signal connection terminal and the power negative pole connection terminal <NUM> are sequentially arranged from top to bottom; or the power negative pole connection terminal <NUM>, the signal connection terminal and the power positive pole connection terminal <NUM> are sequentially arranged from top to bottom; or the signal connection terminal, the power positive pole connection terminal <NUM> and the power negative pole connection terminal <NUM> are sequentially arranged from top to bottom; or the signal connection terminal, the power negative pole connection terminal <NUM> and the power positive pole connection terminal <NUM> are sequentially arranged from top to bottom. The power positive pole connection terminal <NUM>, the signal connection terminal and the power negative pole connection terminal <NUM> are in forms of pins and/or terminal blocks. The lamp bead further includes a printed circuit board (PCB) <NUM>, where the LED lamps <NUM>, the LED lamp driving chip <NUM>, the power positive pole connection terminal <NUM>, the signal connection terminal and the power negative pole connection terminal <NUM> are arranged on the PCB <NUM>. The LED lamp driving chip <NUM> is VIPer22A, which is a switching power supply driving chip produced by STMicroelectronics.

The disclosure further provides a lamp strip which includes a plurality of lamp beads. First signal connection terminals <NUM> and second signal connection terminals <NUM> of the plurality of lamp beads are sequentially connected in series. That is, the second signal connection terminal <NUM> of the first lamp bead is connected to the first signal connection terminal <NUM> of the second lamp bead, the second signal connection terminal <NUM> of the second lamp bead is connected to the first signal connection terminal <NUM> of the third lamp bead, and the rest may be sequentially implemented in the similar way. Power positive pole connection terminals <NUM> of the plurality of lamp beads are connected with each other, and power negative pole connection terminals <NUM> of the plurality of lamp beads are connected with each other. The lamp strip further includes a power supply <NUM> and a controller <NUM>; the power supply <NUM> is connected to a power input end <NUM> of the controller <NUM>; a power positive pole output end <NUM> of the controller <NUM> is connected to the power positive pole connection terminals <NUM> of the plurality of lamp beads, and a power negative pole output end <NUM> of the controller <NUM> is connected to the power negative pole connection terminals <NUM> of the plurality of lamp beads; and a signal output end <NUM> of the controller <NUM> is connected to a first signal connection terminal <NUM> of the first lamp bead of the plurality of lamp beads which are sequentially connected in series. The power supply <NUM>, the controller <NUM> and the plurality of lamp beads are connected through a circuit board, a wire or an enameled wire.

As shown in <FIG>, a signal connection terminal, a power positive pole connection terminal <NUM> and a power negative pole connection terminal <NUM> of a lamp bead provided in Example <NUM> of the disclosure are sequentially arranged from top to bottom. An internal wiring mode of the lamp bead provided in Example <NUM> of the disclosure is shown in <FIG>. A wiring mode of a lamp strip composed of lamp beads provided in Example <NUM> of the disclosure is shown in <FIG>.

As shown in <FIG> and <FIG>, a power positive pole connection terminal <NUM>, a signal connection terminal and a power negative pole connection terminal <NUM> of a lamp bead provided in Example <NUM> of the disclosure are sequentially arranged from top to bottom. An internal wiring mode of the lamp bead provided in Example <NUM> of the disclosure is shown in <FIG>. A wiring mode of a lamp strip composed of lamp beads provided in Example <NUM> of the disclosure is shown in <FIG>.

As shown in <FIG>, positive poles, negative poles and IO ports of an LED lamp <NUM> according to the disclosure are uniformly adjusted to ensure that the three lines can be parallel during wiring. This can greatly reduce welding points and the wiring length. The IO ports are in such a wiring mode that the IO ports of each LED lamp <NUM> are directly cut off after welding. The lamp strip according to the disclosure includes a controller <NUM>, lamp beads and wires. An IO (signal output end <NUM>), a VDD (power positive pole output end <NUM>) and a GND (power negative pole output end <NUM>) of the controller <NUM> are connected with an IO (signal connection terminal), a VDD (power positive pole connection terminal <NUM>) and a GND (power negative pole connection terminal <NUM>) of the lamp bead respectively.

The VDDs of all the beads are connected together, the GNDs of all the beads are connected together, the IO of the first lamp bead of the LED lamp <NUM> is connected to the IO of the second lamp bead, the IO of the second lamp bead is connected to the IO of the third lamp bead, and the test is implemented in the similar way; and a plurality of lamp strips may also be connected end to end.

In the disclosure, a conductor <NUM> connected to each port may be copper foil of a printed circuit board <NUM>, or a wire with rubber, or an insulated enameled wire, and is very simple and convenient to manufacture and has high connection reliability. Because of simplify and convenience in manufacturing, the efficiency is greatly improved and the manufacturing cost is greatly reduced. <FIG> is a schematic wiring diagram of lamp beads connected on a circuit board; <FIG> is a schematic wiring diagram of lamp beads connected by ordinary wires or enameled wires; and <FIG> is a schematic wiring diagram of lamp beads connected by ordinary wires or enameled wires after a protective housing is added to the lamp beads.

Each example of the description is described in a progressive manner, each example focuses on the difference from other examples, and the same and similar parts between the examples may refer to each other.

Claim 1:
A lamp bead, comprising a packaging housing (<NUM>), one or more LED lamps (<NUM>) and an LED lamp driving chip (<NUM>); wherein
the LED lamps (<NUM>) and the LED lamp driving chip (<NUM>) are arranged in the packaging housing (<NUM>);
a power positive pole connection terminal (<NUM>), a signal connection terminal and a power negative pole connection terminal (<NUM>) which are arranged longitudinally are exposed on an outer side of the bottom of the packaging housing (<NUM>); the signal connection terminal is an IO port and comprises a first signal connection terminal (<NUM>) and a second signal connection terminal (<NUM>) which are transversely arranged; the power positive pole connection terminal (<NUM>), the signal connection terminal and the power negative pole connection terminal (<NUM>) pass through the bottom of the packaging housing (<NUM>);
a first signal end (<NUM>) and a second signal end (<NUM>) of the LED lamp driving chip (<NUM>) are connected to the first signal connection terminal (<NUM>) and the second signal connection terminal (<NUM>), respectively;
a power positive pole input end (<NUM>) and a power negative pole input end (<NUM>) of the LED lamp driving chip (<NUM>) are connected to the power positive pole connection terminal (<NUM>) and the power negative pole connection terminal (<NUM>), respectively;
anodes of the one or more LED lamps (<NUM>) are connected to the power positive pole connection terminal (<NUM>); and cathodes of the one or more LED lamps (<NUM>) are connected to one or more LED input ends (<NUM>) of the LED lamp driving chip (<NUM>) in a one-to-one correspondence manner, respectively;
a lamp strip, comprising a plurality of the lamp beads, wherein first signal connection terminals (<NUM>) and second signal connection terminals (<NUM>) of the plurality of lamp beads are sequentially connected in series, power positive pole connection terminals (<NUM>) of the plurality of lamp beads are connected with each other, and power negative pole connection terminals (<NUM>) of the plurality of lamp beads are connected with each other.