Auxiliary LED on lighting boards

WO2025210615A8PCT designated stage Publication Date: 2026-01-02HASELI ALI
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Patent Information

Application Number
PCT/IB2025/054239
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-30
Filing Date
2025-04-23
Publication Date
2026-01-02

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Abstract

The innovation involves using a specific volume of aluminum to dissipate heat from two LEDs in LED lighting boards. A common issue with these boards is that when an LED fails, the entire board becomes unusable. To address this, an auxiliary LED is placed in the heat dissipation section, utilizing the available space. This auxiliary LED is activated when a primary LED fails, restoring the board's functionality. A three-position switch is embedded in the board to facilitate this mechanism. The switch allows for disconnection, connection, and voltage redirection. When the primary LED fails or reaches the end of its lifespan, the switch redirects voltage to the auxiliary LED, ensuring continued operation. This system enhances the longevity and reliability of LED lighting boards by preventing total failure due to a single LED malfunction.
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Description

Auxiliary LED on Lighting Boards

[0001] The innovation involves using a specific volume of aluminum to dissipate heat from two LEDs in LED lighting boards. A common issue with these boards is that when an LED fails, the entire board becomes unusable. To address this, an auxiliary LED is placed in the heat dissipation section, utilizing the available space. This auxiliary LED is activated when a primary LED fails, restoring the board’s functionality.

[0002] A three-position switch is embedded in the board to facilitate this mechanism. The switch allows for disconnection, connection, and voltage redirection. When the primary LED fails or reaches the end of its lifespan, the switch redirects voltage to the auxiliary LED, ensuring continued operation. This system enhances the longevity and reliability of LED lighting boards by preventing total failure due to a single LED malfunction.

[0003] F21V 23 / 00 - H01R 33 / 00 - F21V 19 / 00 - F21S 2 / 00 - F21V 17 / 00

[0004] In previous lighting boards, production and usage were such that when an LED installed on the board failed, the entire board became unusable. To highlight recent advancements in this area, two related patents are referenced:

[0005] Patent No. 20110241058 describes a heat dissipation module for a light-emitting diode (LED), consisting of an aluminum base plate, at least one connection hole on the aluminum base plate, and a copper column installed in the connection hole. The bottom of the aluminum heat dissipation base plate couples with the distal surface of the copper column. The heat generated by the aluminum heat dissipation base plate can be conducted to the aluminum base plate via the copper body for rapid heat dissipation.

[0006] Patent No. 20240068655 describes an LED lamp that includes: a lamp shell with a circular cross-section along its central axis, comprising a lamp neck and a sleeve; a heat sink with multiple fins connected to the sleeve and lamp neck; a power supply consisting of a power board and several electronic components installed in the lamp neck and sleeve; a light board with an opening at its center located at the second end of the heat sink, physically and thermally connected to it; multiple LED chips mounted on the light board and electrically connected to the power supply; and a lamp cover positioned at the second end of the heat sink, covering multiple LED chips. The sleeve and light board opening define a first heat dissipation channel, while the fins and light board opening define a second heat dissipation channel. Both channels share heat dissipation responsibilities for the light board and power supply.

[0007] In LED lighting boards, as soon as the main LED fails, the entire lighting board becomes non-functional. To address this issue, an auxiliary LED is installed alongside the main LED, using a three-position switch for connection and disconnection. When the main LED stops functioning, the three-position switch redirects the voltage to the auxiliary LED, allowing it to replace the main LED in the circuit. As a result, the lighting board becomes operational again.

[0008] Adding an auxiliary LED next to the main LED does not require increasing the aluminum volume or weight of the board. This is because there is sufficient space available for installing the auxiliary LED, and the existing aluminum is adequate for heat dissipation. The auxiliary LED takes over the function of the main LED and ensures continued operation of the lighting board.

[0009] Current LED lighting boards, which are produced and utilized today, become entirely non-functional as soon as the LED on the board fails. The goal of this invention is to enable the reuse of the entire lighting board, thereby preventing unnecessary costs.

[0010] The proposed solution involves utilizing available space on lighting boards to install an auxiliary LED next to the main LED on the board. Additionally, a three-position switch is installed alongside to activate the auxiliary LED by redirecting voltage through this switch when the main LED fails. This approach allows for continued use of the entire board without needing to discard it entirely.

[0011] By employing an auxiliary LED, when the primary LED fails, it becomes possible to reuse what would otherwise be considered a non-functional board. Additional advantages include cost-effectiveness for consumers since they only pay for an additional auxiliary LED component. Furthermore, this approach allows for adjustable lighting brightness on boards as another benefit.Fig.1

[0012] In, two identically sized printed circuit boards are shown. The printed circuit board (1-1) has an LED (1-2) installed at its center, with voltage supplied through two wires (1-3). In Figure 2, a printed circuit board (2-1) features a primary LED (2-2) at its bottom and an auxiliary LED (2-3) above it on the same board. A three-position switch (2-5) is located nearby. Two wires (2-4) connect one to the middle pin of this three-position switch and another jointly to both primary (2-2) and auxiliary LEDs (2-3).

[0013] In, two identically sized printed circuit boards are shown. The printed circuit board (1-1) has an LED (1-2) installed at its center, with voltage supplied through two wires (1-3). In Figure 2, a printed circuit board (2-1) features a primary LED (2-2) at its bottom and an auxiliary LED (2-3) above it on the same board. A three-position switch (2-5) is located nearby. Two wires (2-4) connect one to the middle pin of this three-position switch and another jointly to both primary (2-2) and auxiliary LEDs (2-3).Examples

[0014] This method involves integrating auxiliary LEDs alongside primary LEDs on lighting boards. As a result, all lighting boards will have extended lifespans while also offering separate light colors for health benefits and reducing eye strain during use.

[0015] This invention can be applied in household lighting as well as industrial uses.

Claims

What is claimed is the use of a specific volume of aluminum for dissipating the heat generated by LEDs. This aluminum is utilized to dissipate the heat of two LEDs.Based on Claim 1, in LED lighting boards, when an LED fails, the entire electronic LED board becomes unusable. However, in the heat dissipation section of the LED, there is space available where an auxiliary LED can be installed and activated in such cases, thereby restoring the functionality of the entire board.Based on Claim 2, for the purpose of using such a mechanism (the use of an auxiliary LED), a three-position switch for disconnection, connection, and voltage redirection is embedded in the board. This switch redirects the voltage flow to the auxiliary LED in case of failure or at the end of the lifespan of the primary LED, making it operational.