Patent Description:
Most of the existing Symphony point-controlled lamp beads are connected in series with signals, wherein an output of signal of the current lamp bead is connected with an input of signal of the next lamp bead. In this way, if the current bead is damaged, the next bead, or even all the beads connected behind the current bead, will be prone to be unable to receive the control signal and thus cannot be lit normally.

Each of the existing Symphony point-controlled lamp beads comprises a signal input end and a signal output end. When the lamp beads are packaged by wire bonding in the above-mentioned series connection method, in order to make the signals of all lamp beads communicated, the welding pin brackets need to be arranged at the signal input end and the signal output end respectively, and the signal output line is needed to be welded, so as to make the welding pin bracket at the signal output end of one lamp bead connect with the welding pin bracket at the signal input end of the adjacent lamp bead at the rear end thereof. This packaging structure of the lamp bead not only has more packaging processes, but also has poor adaptability when the lamp bead is lit by the signal. <CIT> mainly discloses a string of copper wire lamps which can control the luminescence mode.

In view of this, the purpose of the present application is to provide an LED lamp bead and an LED lamp group. The LED lamp bead works independently, ensuring that each LED lamp bead in the LED lamp group can be lit under normal conditions and have a good adaptability.

In the first aspect, an embodiment of the present application provides an LED lamp bead. The LED lamp bead comprises a light-emitting body and a lamp bead bracket; and the lamp bead bracket comprises a light-emitting body fixing structure and a drive circuit; the light-emitting body fixing structure is configured for fixing the light-emitting body, and the drive circuit is connected with the light-emitting body, for driving the light-emitting body to emit light in response to a lamp bead trigger signal; and the drive circuit comprises an input pin and power supply pins, the power supply pins are connected to a power supply, and the input pin is configured to receive the lamp bead trigger signal and transmit it to the drive circuit, so that the drive circuit drives the light-emitting body to emit light.

In conjunction with the first aspect, the embodiment of the present application provides a first possible embodiment of the first aspect, wherein the LED lamp bead further comprises a lamp bead cover, and the lamp bead cover is mounted on the light-emitting body fixing structure and configured to form a lamp cover structure of the light-emitting body.

In conjunction with the first aspect, the drive circuit comprises an IC chip and a light-emitting body control chip connected thereto, and the light-emitting body control chip corresponds to the light-emitting body; the IC chip is configured for acquiring the lamp bead trigger signal and sending the lamp bead trigger signal to the light-emitting body control chip; and the light-emitting body control chip is configured for receiving the lamp bead trigger signal to trigger the light-emitting body to emit light.

In conjunction with the first aspect, the embodiment of the present application provides a third possible embodiment of the first aspect, wherein communication contacts and a signal input contact are provided on the IC chip; the signal input contact is configured for connecting with the input pin, for transmitting the lamp bead trigger signal to the IC chip; and the IC chip is configured to send the lamp bead trigger signal to the light-emitting body control chip through the communication contacts, so as to trigger the light-emitting body to emit light.

In conjunction with the first aspect, the embodiment of the present application provides a fourth possible embodiment of the first aspect, wherein the light-emitting body comprises a plurality of light-emitting bodies of different colors, and the light-emitting body control chip comprises light-emitting sub-chips corresponding to individual light-emitting bodies; each of the light-emitting sub-chip is configured for receiving the lamp bead trigger signal to trigger the corresponding light-emitting body to emit light; and the communication contacts of the IC chip comprise communication contacts corresponding to individual light-emitting sub-chips, and each of the communication contacts is connected to a corresponding light-emitting sub-chip.

In conjunction with the first aspect, the embodiment of the present application provides a fifth possible embodiment of the first aspect, wherein the plurality of light-emitting bodies of different colors comprise R, G, and B light-emitting bodies.

In conjunction with the first aspect, the embodiment of the present application provides a sixth possible embodiment of the first aspect, wherein the power supply pins comprise a positive pin and a negative pin, the positive pin is connected with the light-emitting body control chip, and the negative pin is connected with the IC chip, wherein the IC chip further comprises an IC positive electrode and an IC negative electrode, the IC positive electrode is connected to the positive pin, and the IC negative electrode is connected to the negative pin; and the light-emitting body control chip comprises a chip positive electrode and a chip negative electrode, the chip positive electrode is connected to the positive pin, and the chip negative electrode is connected to the IC chip.

In conjunction with the first aspect, the embodiment of the present application provides a seventh possible embodiment of the first aspect, wherein the positive pin, the negative pin and the input pin are arranged horizontally in sequence from left to right.

In conjunction with the first aspect, the embodiment of the present application provides a eighth possible embodiment of the first aspect, wherein the light-emitting body fixing structure comprises a plug-in structure or a patch structure.

In the second aspect, an embodiment of the present application further provides an LED lamp group, wherein the LED lamp group is provided with a plurality of the LED lamp beads mentioned above.

The embodiments of the present application bring about the following beneficial effects. As for the LED lamp bead and the LED lamp group provided by the present application, the LED lamp bead drives the light-emitting body to emit light through the drive circuit, and the light-emitting operation of each LED lamp bead included in the LED lamp group does not need to be performed according to the signal outputs of other LED lamp beads, and each LED lamp bead works independently, ensuring that each LED lamp bead in the LED lamp group can be lit under normal conditions.

Other features and advantages of the present application will be set forth in the description below, and will be partially apparent from the description or may be learned by practice of the present application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the description and the drawings.

In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to be understood, preferred embodiments are given below and are described in detail as follows in conjunction with the drawings.

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following descriptions show some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative efforts.

In the drawings: <NUM> - IC negative electrode; <NUM> - signal input contact; <NUM> - IC positive electrode; <NUM> - red light-emitting sub-chip negative electrode; <NUM> - green light-emitting sub-chip negative electrode; <NUM> - blue light-emitting sub-chip negative electrode; <NUM> - green light-emitting sub-chip positive electrode; <NUM> - blue light-emitting sub-chip positive electrode; <NUM> - red light-emitting sub-chip positive electrode; <NUM>- light-emitting body; <NUM>- lamp bead cover; <NUM>- lamp bead bracket; <NUM>- light-emitting body fixing structure; <NUM> - drive circuit; <NUM>-input pin; <NUM>-power supply pin; <NUM>-positive pin; <NUM>-negative pin; <NUM>-IC chip; <NUM> - light-emitting control chip.

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments, obtained by those skilled in the art without creative works, fall within the protection scope of the present application.

The existing Symphony point-controlled lamp beads are all connected in series with signals. The signal output of the current lamp bead is connected with the signal input of the next lamp bead. In this way, a damage of current lamp bead will cause that the next lamp bead, or even all the lamp beads connected behind the current lamp bead, are prone to not able to get the control signal and thus not able to be lit normally.

Each of the existing Symphony point-controlled lamp beads comprises a signal input end and a signal output end. When the lamp beads are packaged by wire-bonding in the above-mentioned series connection method, in order to make the signals of all the lamp beads communicated, the welding pin brackets need to be arranged at the signal input end and the signal output end respectively, and the signal output line is needed to be welded, so as to make the welding pin bracket at the signal output end of one lamp bead connect with the welding pin bracket at the signal input end of the adjacent lamp bead at the rear end thereof. This packaging structure of a lamp bead not only has more packaging processes, but also has poor adaptability when the lamp bead is lit by the signal.

Based on this, the embodiments of the present application provide an LED lamp bead and an LED lamp group. The LED lamp beads work independently, ensuring that each LED lamp bead in the LED lamp group can be lit under normal conditions.

In order to facilitate the understanding on this embodiment, an LED lamp bead disclosed in the embodiment of the present application is first introduced in detail. <FIG> is a schematic structural diagram of an LED lamp bead provided by the embodiment of the present application. As shown in <FIG>, the LED lamp bead comprises a light-emitting body <NUM> and a lamp bead bracket <NUM>; the lamp bead bracket <NUM> comprises a light-emitting body fixing structure <NUM> and a drive circuit <NUM>; the light-emitting body fixing structure <NUM> is used to fix the light-emitting body <NUM>, and the drive circuit <NUM> and the light-emitting body <NUM> are connected, for driving the light-emitting body <NUM> to emit light in response to a lamp bead trigger signal; the drive circuit <NUM> comprises an input pin <NUM> and a power supply pin <NUM>, the power supply pin <NUM> is connected to the power supply, and the input pin <NUM> is used for receiving the lamp bead trigger signal and transmit it to the drive circuit <NUM>, so that the drive circuit <NUM> drives the light-emitting body <NUM> to emit light.

In a specific implementation, each LED lamp bead comprises a drive circuit <NUM>. After receiving the lamp bead trigger signal, the drive circuit <NUM> drives the light-emitting body <NUM> to emit light according to the lamp bead trigger signal, wherein the drive circuit <NUM> is fixed to the light-emitting body fixing structure <NUM>, so that the light-emitting body <NUM> and the drive circuit <NUM> are connected with each other.

The LED lamp bead provided by the embodiment of the present application drives the light-emitting body <NUM> to emit light through the drive circuit <NUM>, and each LED lamp bead included in the LED lamp group does not need to realize the light-emitting work according to the signal output of other LED lamp beads. Each of the lamp beads works independently, ensuring that each LED light bead in the LED light group can be lit under normal conditions.

For ease of understanding, on the basis of the above embodiments of the present application, the embodiments of the present application further provide another LED lamp bead. The another LED lamp bead provided by the embodiments of the present application further comprises a lamp bead cover <NUM>, the lamp bead cover <NUM> is installed on the light-emitting body fixing structure <NUM>, for forming the lamp cover structure of the light-emitting body <NUM>. Further, the embodiment of the present application is mainly to introduce the specific structure of the drive circuit <NUM>. <FIG> shows a schematic structural diagram of another LED lamp bead provided by the present application, wherein <FIG> is the schematic structural diagram of the drive circuit <NUM> of the LED lamp bead. As shown in <FIG>, the above-mentioned drive circuit <NUM> comprises an IC chip <NUM> and a light-emitting body control chip <NUM> connected to the IC chip <NUM>; the light-emitting body control chip <NUM> corresponds to the light-emitting body <NUM>; the IC chip <NUM> is used for acquiring the lamp bead trigger signal and sending it to the light-emitting body control chip <NUM>; the light-emitting body control chip <NUM> is used for receiving the lamp bead trigger signal to trigger the light-emitting body <NUM> to emit light. Here, the above-mentioned power supply pins <NUM> comprise a positive pin <NUM> and a negative pin <NUM>, the positive pin <NUM> is connected to the light-emitting body control chip <NUM>, and the negative pin <NUM> is connected to the IC chip <NUM>.

In a specific implementation, the IC chip <NUM> is provided thereon with communication contacts and a signal input contact <NUM>; the signal input contact is used to connect with the input pin <NUM> for transmitting the lamp bead trigger signal to the IC chip <NUM>; the IC chip <NUM> is used to send a lamp bead trigger signal to the light-emitting body control chip <NUM> through the communication contacts, so as to trigger the light-emitting body <NUM> to emit light.

In a specific implementation, light-emitting body <NUM> of the LED lamp bead comprises a plurality of light-emitting bodies <NUM> of different colors, and the light-emitting body control chip <NUM> of the drive circuit <NUM> comprises light-emitting body sub-chips corresponding to individual light-emitting bodies <NUM>. The light-emitting body sub-chip is used for receiving the lamp bead trigger signal to trigger the corresponding light-emitting body <NUM> to emit light. The communication contacts of the IC chip <NUM> comprise communication contacts corresponding to individual light-emitting sub-chips, and each communication contact is connected to the corresponding light-emitting sub-chip. Specifically, the above-mentioned plurality of light-emitting bodies <NUM> of different colors may comprise R, G, and B light-emitting bodies. In this case, the above-mentioned light-emitting sub-chips comprise the red light-emitting sub-chip corresponding to the R light-emitting body, the green light-emitting sub-chip corresponding to the G light-emitting body, and the blue light-emitting sub-chip corresponding to the B light-emitting body.

<FIG> is a schematic diagram of the specific structure of the drive circuit <NUM>. In <FIG>, a plurality of light-emitting bodies <NUM> of different colors including R, G, and B light-emitting bodies are used as an example for illustration. At this time, the communication contacts of the IC chip <NUM> comprise communication contacts corresponding respectively to the above three light-emitting sub-chips. As shown in <FIG>, four chip structures are shown in <FIG>. Each of the three chip structures on the left is one of the three light-emitting sub-chips above. These three light-emitting sub-chips are all connected to the positive pin <NUM> of the power supply pin <NUM>. Specifically, the first chip is a red light-emitting sub-chip, the second chip is a green light-emitting sub-chip, and the third chip is a blue light-emitting sub-chip. Another chip is the above-mentioned IC chip <NUM>, which is connected to the negative pin <NUM> of the power supply pin <NUM>. Here, the IC chip <NUM> is provided thereon with <NUM> contacts, and the contact <NUM> is the above-mentioned signal input contact, which is connected to the input pin <NUM>, the three black circular contacts included in the IC chip <NUM> are the communication contacts corresponding to the above three light-emitting sub-chips respectively, and each black circular contact is connected to the light-emitting sub-chip on the left side respectively.

Specifically, the light-emitting body control chip <NUM> comprises a chip positive electrode and a chip negative electrode. The chip negative electrode <NUM> of the red light-emitting sub-chip is disposed on the top of the red light-emitting sub-chip, the chip negative electrode <NUM> of the green light-emitting sub-chip is disposed on the right side of the green light-emitting sub-chip, and the chip negative electrode <NUM> of the blue light-emitting sub-chip is disposed on the right side of the blue light-emitting sub-chip. The chip negative electrodes of the three light-emitting sub-chips are respectively connected to individual communication contacts of the IC chip <NUM>. Further, the chip positive electrodes of the light-emitting body control chip <NUM> are all connected to the positive pin <NUM> of the power supply pins <NUM>, wherein the chip positive electrode of the red light-emitting sub-chip is located at the bottom of the red light-emitting sub-chip, the chip positive electrode of the green light-emitting sub-chip is located at the left side of the green light-emitting sub-chip, and the chip positive electrode of the blue light-emitting sub-chip is located on the left side of the blue light-emitting sub-chip.

In addition, the IC chip <NUM> further comprises an IC positive electrode and an IC negative electrode. The contact <NUM> in <FIG> is the above-mentioned IC positive electrode, the contact <NUM> is the above-mentioned IC negative electrode, the IC positive electrode is connected to the positive pin <NUM> of the power supply pin <NUM>, and the IC negative electrode is connected to the negative pin <NUM> of the power supply pin <NUM>. In a specific implementation, the lamp bead trigger signal is transmitted to the drive circuit <NUM> through the input pin <NUM>, and the drive circuit <NUM> receives the above lamp bead trigger signal through its signal input contact <NUM> and controls, according to the above lamp bead trigger signal, the light-emitting body control chip <NUM> to work through the corresponding communication contact, so that the corresponding light-emitting sub-chip drives the corresponding light-emitting body <NUM> to light up. At this time, the IC positive electrode and the IC negative electrode of the IC chip <NUM> are respectively connected to the positive pin <NUM> and the negative pin <NUM> of the current LED lamp bead, and the current LED lamp bead is only triggered and lit for the lamp bead trigger signal, which will not be transmitted to another LED lamp bead through the positive pin <NUM> or the negative pin <NUM>, thus making each LED lamp bead work independently.

Further, the positive pin <NUM>, the negative pin <NUM> and the input pin <NUM> of the LED lamp bead provided by the embodiment of the present application are arranged horizontally from left to right in sequence. When the IC chip <NUM> and the light-emitting body control chip <NUM> are connected, the chip negative electrode of each light-emitting sub-chip of the light-emitting body control chip <NUM> can be connected to the corresponding communication contact in a left-right correspondence, and the wiring is simple and clear.

Further, the IC chip <NUM> and the light-emitting body control chip <NUM> in the LED lamp bead provided by the embodiment of the present application are connected by bonding wires, and the corresponding connections between the IC chip <NUM> and the positive pin <NUM> and the negative pin <NUM> are also performed by bonding wires. The above-mentioned signal input contact <NUM> is also connected to the input pin <NUM> by bonding wire.

In a specific implementation, the light-emitting body fixing structure <NUM> of the above-mentioned LED lamp bead comprises a plug-in structure or a patch structure. Herein, when the light-emitting body fixing structure <NUM> is a plug-in structure, as shown in <FIG> which is the schematic structural diagram of the LED lamp bead when the light-emitting body fixing structure is a plug-in structure, the plug-in structure comprises three pins, and the individual pins are respectively corresponding to the positive pin <NUM>, the negative pin <NUM> and the input pin <NUM>. The above three pins are also arranged horizontally from left to right, corresponding to the positive pin <NUM>, the negative pin <NUM> and the input pin <NUM> arranged horizontally from left to right in sequence. When the light-emitting body fixing structure <NUM> is a patch structure, as shown in <FIG> which is the schematic structural diagram of the lamp bead bracket when the light-emitting body fixing structure is a patch structure, the above-mentioned light-emitting body fixing structure <NUM> further has a pad structure correspondingly. The LED lamp beads are mounted in an LED lamp group including a plurality of LED lamp beads through the pad structure.

Another LED lamp bead provided by the present application is provided with an IC chip <NUM> and a light-emitting body control chip <NUM>. The IC chip <NUM> receives the lamp bead trigger signal through the input pin <NUM>, and drives the light-emitting body control chip <NUM> through the communication contact according to the lamp bead trigger signal, so as to drive the light-emitting body <NUM> to light up. The IC chip <NUM> is connected to the negative pin <NUM> of the power supply pin <NUM>, and the light-emitting body control chip <NUM> is connected to the positive pin <NUM> of the power supply pin <NUM>. At this time, the lamp bead trigger signal received from the input pin <NUM> forms a closed signal loop between the IC chip <NUM> and the light-emitting body control chip <NUM>. There is no need to transmit the lamp bead trigger signal to other LED lamp beads, and thus there is no need to provide a pin corresponding to the signal output, which simplifies the structural composition and arrangement manner of the light-emitting body fixing structure <NUM>, thereby reducing the space occupied by a single LED lamp bead.

Based on the above-mentioned embodiment, an embodiment of the present application further provides an LED lamp group, wherein the LED lamp group is provided with a plurality of LED lamp beads as shown in any one of <FIG>. Here, the LED lamp group can determine the lighting mode of each LED lamp bead according to the preset use requirements.

The LED lamp group provided by the embodiment of the present application has the same technical features as the LED lamp bead provided by the above-mentioned embodiments, so that it can also solve the same technical problems and achieve the same technical effects. Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific structure of the LED lamp group described above can be obtained by referring to the corresponding structure in the foregoing embodiments of the LED lamp bead, which will not be repeated here.

In addition, in the description of the embodiments of the present application, unless expressly specified and limited otherwise, the terms "installation", "connection with" and "connection to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; or may be a mechanical connection, or may also be an electrical connection; or may be a direct connection, or may also be an indirect connection through an intermediate medium, or may be an internal communication between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood in specific situations.

In the description of the present application, it should be noted that the orientation or position relationship, indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer " etc., is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must be in a specific orientation, or constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation on the present application. Furthermore, the terms, "first", "second", and "third", are used for descriptive purposes only, and should not be construed to indicate or imply importance of relativity.

Claim 1:
An LED lamp bead, comprising a light-emitting body (<NUM>) and a lamp bead bracket (<NUM>), wherein the lamp bead bracket (<NUM>) comprises a light-emitting body fixing structure (<NUM>) and a drive circuit (<NUM>);
the light-emitting body fixing structure (<NUM>) is configured for fixing the light-emitting body (<NUM>), and the drive circuit (<NUM>) is connected with the light-emitting body (<NUM>), for driving the light-emitting body (<NUM>) to emit light in response to a lamp bead trigger signal; and
the drive circuit (<NUM>) comprises an input pin (<NUM>) and power supply pins (<NUM>), the power supply pins (<NUM>) are connected to a power supply, and the input pin (<NUM>) is configured for receiving the lamp bead trigger signal and transmitting it to the drive circuit (<NUM>), so that the drive circuit (<NUM>) drives the light-emitting body (<NUM>) to emit light; characterised in that the drive circuit (<NUM>) comprises an IC chip (<NUM>) and a light-emitting body control chip (<NUM>) connected to the IC chip (<NUM>), and the light-emitting body control chip (<NUM>) corresponds to the light-emitting body (<NUM>);
the IC chip (<NUM>) is configured for acquiring the lamp bead trigger signal, and sending the lamp bead trigger signal to the light-emitting body control chip (<NUM>); and
the light-emitting body control chip (<NUM>) is configured for receiving the lamp bead trigger signal, so as to trigger the light-emitting body (<NUM>) to emit light.