Circuit structure of low-energy-consumption LED lamp printed circuit board
By dividing the LED wick into unit light groups in parallel and replacing the copper clad wire with power adapter wires, the power transmission loss problem of LED wicks is solved, and the balanced light emission and life of the LED wick is achieved.
Patent Information
- Application Number
- CN202422318209.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-23
AI Technical Summary
There is a line loss voltage drop in the power transmission of existing LED wicks, resulting in differences in the luminescence parameters and performance of LED wicks, and the impact of energy loss and thermal energy is significant.
Divide the LED wick into multiple unit light groups, connect it in parallel and replace the traditional copper clad wire with power adapter wire for electrical connection, ensuring that the current voltage drop is minimum or tends to be zero voltage drop, and the voltage and current of the unit light group are adapted to the driver output.
The energy balanced light emission of LED wicks is achieved, reducing energy loss and thermal energy influence, improving light efficiency and extending service life.
Smart Images
Figure CN223274243U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a circuit structure of an LED lamp printed circuit board, in particular to a circuit structure of a low-energy-consuming LED lamp printed circuit board. Background Art
[0002] LED (light-emitting diode) lighting devices use long printed circuits to transmit power, with printed copper conductors between the LED wicks. Due to the line voltage drop, the voltages received by the LEDs at the beginning and end of the copper conductors differ, and power transmission involves line loss and voltage drop. The volt-ampere (VA) characteristic curve of an LED wick is shown in the figure below. Figure 1 As shown. Figure 1 As can be seen from the figure, the forward voltage Vf applied to the LED affects the forward conduction current If. The A-Lux characteristic curve of the LED core is shown in the figure below. Figure 2 As shown. Figure 2 As can be seen from the figure, the current of the LED core affects the illumination of the LED. Figure 3 As shown in the figure, the driver is connected to the LED printed copper clad board circuit. The LED wick generates a current voltage drop due to the copper-clad wire, which changes the illuminance Lux and photosynthetic photon flux density PPFD generated by the LED, thereby affecting the output of illuminance and photosynthetic photons, resulting in differences in the luminous parameters and efficacy of the LED lamp. Utility Model Content
[0003] In order to overcome the defects in the prior art, an embodiment of the present utility model provides a circuit structure of a low-energy LED lamp printed circuit board, including a driver and several unit lamp groups, each of the unit lamp groups includes at least one LED lamp wick, the LED lamp wicks in each of the unit lamp groups are connected in series, all the unit lamp groups are connected in parallel and electrically connected to the driver, and each of the unit lamp groups is electrically connected using a power adapter wire.
[0004] Furthermore, the current voltage drop of the power adapter wire in the unit lamp group is a minimum voltage drop.
[0005] Furthermore, the current voltage drop of the power adapter wire in the unit lamp group tends to zero voltage drop.
[0006] Furthermore, the voltage of the unit lamp group is the output DC voltage VL value of the driver.
[0007] Furthermore, the total current of the unit lamp groups after being connected in parallel is the output current value of the driver.
[0008] Furthermore, the current of the unit lamp group is the current value after all the LED lamp cores in the unit lamp group are connected in series.
[0009] Furthermore, the LED lamp cores in each unit lamp group are connected by copper-clad wires.
[0010] Furthermore, the current voltage drop on the copper-clad wires in the unit lamp group is a minimum voltage drop.
[0011] Furthermore, the current voltage drop on the copper-clad wires in the unit lamp group tends to zero voltage drop.
[0012] The beneficial effects of the present invention are as follows: the LED lamp core is divided into multiple unit lamp groups, and the unit lamp groups are electrically connected using power adapter wires instead of the copper-clad wires on the traditional printed circuit board. This avoids the current voltage drop caused by the body resistance of the copper-clad wires, and the differences in the luminous parameters and efficiency of the LED lamp core caused by this current voltage drop. It also reduces the energy loss of the LED lamp core caused by the voltage drop circuit of the copper-clad wires, as well as the heat energy generated by this loss. Ultimately, the LED lamp core receives energy evenly, emits light evenly, reduces power consumption and heat energy, improves luminous efficiency, and increases the service life of the LED lamp core.
[0013] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 This is the volt-ampere characteristic curve of the LED wick.
[0016] Figure 2 It is the characteristic curve of LED wick forward current and relative light intensity.
[0017] Figure 3 It is a circuit diagram of a printed circuit board of an LED lamp in the prior art.
[0018] Figure 4 It is a circuit diagram of a printed circuit board of an LED lamp in an embodiment of the present utility model. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "bottom", "inner", "outer", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", etc., are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features.
[0021] In order to achieve the above object, the utility model provides a circuit structure of a low-energy LED lamp printed circuit board, such as Figure 4 As shown. The circuit structure includes a driver 1 and several unit light groups, such as unit light group (LED1) 2, unit light group (LED2) 3, and unit light group (LEDn). Each unit light group includes at least one LED wick, such as unit light group (LED1) 2 includes LED wick (D1) 21, LED wick (D2), and LED wick (DN); unit light group (LED2) 3 includes LED wick (D1) 31, LED wick (D2), and LED wick (DN). The LED wicks in each unit light group are connected in series, and all unit light groups are connected in parallel and electrically connected to the driver. Each unit light group is electrically connected using a power adapter wire.
[0022] In this embodiment, several LED lamp wicks are divided into multiple unit lamp groups, which are connected in parallel, and power adapter wires are used to replace the copper-clad wires on the traditional printed circuit board for electrical connection. That is, the redundant copper-clad wires of the printed circuit are divided into groups and replaced with suitable external wires, thereby avoiding the current voltage drop caused by the resistance of the copper-clad wire body. The current voltage drop can also reduce the differences in the luminous parameters and efficiency of each LED lamp wick in the circuit, thereby reducing the energy loss of the LED lamp wick caused by the voltage drop circuit of the copper-clad wire and the heat energy generated by this loss. Ultimately, the LED lamp wick receives energy evenly, emits light evenly, reduces power consumption and heat energy, improves light efficiency, and increases the service life of the LED lamp wick. It is especially effective for long straight LED lamps.
[0023] In this embodiment, the power adapter wire is selected based on the standard that the current voltage drop of the unit lamp group on the power adapter wire is minimal or tends to zero voltage drop.
[0024] The total voltage and total current of the unit lamp group need to be compatible with the output voltage VL and output current I of the driver.
[0025] Specifically, the voltage of the unit lamp group is the output DC voltage VL of the driver. The total current of the unit lamp groups after being connected in parallel is the output current of the driver. The current of the unit lamp group is the current value after all LED cores in the unit lamp group are connected in series.
[0026] In this embodiment, the LED lamp cores in each unit lamp group are connected by copper-clad wires.
[0027] The voltage drop of the current on the copper-clad wires in the unit lamp group is the minimum voltage drop. Preferably, the voltage drop of the current on the copper-clad wires in the unit lamp group tends to zero voltage drop.
[0028] Adopting the above circuit structure can obtain the lowest current voltage drop, thereby reducing energy loss and improving the luminous performance and service life of the LED wick.
[0029] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A circuit structure of a low-energy LED lamp printed circuit board, characterized in that: It includes a driver and several unit light groups, each of which includes at least one LED lamp wick. The LED lamp wicks in each unit light group are connected in series. All the unit light groups are connected in parallel and electrically connected to the driver. Each unit light group is electrically connected using a power adapter wire.
2. The circuit structure of the low-energy LED lamp printed circuit board according to claim 1, characterized in that: The current voltage drop of the power adapter wire in the unit lamp group is the minimum voltage drop.
3. The circuit structure of the low-energy LED lamp printed circuit board according to claim 1, characterized in that: The current voltage drop of the power adapter wire in the unit lamp group tends to zero voltage drop.
4. The circuit structure of the low-energy LED lamp printed circuit board according to claim 1, characterized in that: The voltage of the unit lamp group is the output DC voltage VL value of the driver.
5. The circuit structure of the low-energy LED lamp printed circuit board according to claim 1, characterized in that: The total current after the unit lamp groups are connected in parallel is the output current value of the driver.
6. The circuit structure of the low-energy LED lamp printed circuit board according to claim 1, characterized in that: The current of the unit lamp group is the current value after all the LED lamp cores in the unit lamp group are connected in series.
7. The circuit structure of the low-energy LED lamp printed circuit board according to claim 1, characterized in that: The LED lamp cores in each unit lamp group are connected by copper-clad wires.
8. The circuit structure of the low-energy LED lamp printed circuit board according to claim 7, characterized in that: The current voltage drop on the copper-clad wires in the unit lamp group is the minimum voltage drop.
9. The circuit structure of the low-energy LED lamp printed circuit board according to claim 7, characterized in that: The current voltage drop on the copper-clad wire in the unit lamp group tends to be zero and the voltage drop tends to be zero.