A resistive LED light color temperature adjustment module

Abstract

This utility model relates to the field of LED lamp color temperature adjustment technology, specifically to a resistive LED lamp color temperature adjustment module, including a positive power input terminal DC+, a negative power input terminal DC-, a DIP switch CN1, a dual-color lamp board, a first resistor network, a second resistor network, a third resistor network, and a fourth resistor network. The positive power input terminal DC+ is connected to the positive terminal of the dual-color lamp board; the negative power input terminal DC- is connected to the DIP switch CN1; the negative terminal of the dual-color lamp board is connected to the DIP switch CN1; the first, second, third, and fourth resistor networks are respectively connected to the DIP switch CN1 and the negative terminal of the dual-color lamp board; the resistance values ​​of the first, second, third, and fourth resistor networks are all different. This module achieves multi-level color temperature adjustment, is simple and reliable in design, easy to produce and maintain, and has low manufacturing costs.

Description

Technical Field

[0001] This utility model relates to the field of LED lamp color temperature adjustment technology, specifically to a resistive LED lamp color temperature adjustment module. Background Technology

[0002] With the development of society and economy and the continuous progress of lighting technology, LED (light-emitting diode) lamps have been widely used in many fields such as indoor lighting, commercial lighting, and office lighting due to their significant advantages such as low energy consumption, long life, high luminous efficiency and environmental protection. They have become the mainstream choice in the modern lighting field.

[0003] In the practical application of LED lighting fixtures, users' requirements for lighting environments are no longer limited to simple brightness satisfaction, but are developing towards a more personalized and scenario-based direction. Among these, the demand for color temperature adjustment of lighting fixtures is becoming increasingly prominent. Color temperature, as an important physical quantity describing the color of a light source, allows light of different color temperatures to create distinctly different lighting atmospheres. Low color temperature (e.g., 2000K-3500K) light presents a warm yellow-orange hue, bringing a cozy and comfortable feeling, suitable for scenarios such as home relaxation and restaurant dining; medium color temperature (e.g., 3500K-5000K) light is close to natural light, with high color fidelity, suitable for scenarios requiring clear vision such as offices and reading; high color temperature (e.g., 5000K-6500K and above) light leans towards cool white, with a bright and refreshing effect, suitable for scenarios such as commercial displays and fresh food sales. Therefore, through color temperature adjustment, LED lighting fixtures can accurately meet the lighting needs of different scenarios, effectively improving users' visual comfort and overall user experience, and greatly enhancing the adaptability and flexibility of the lighting environment.

[0004] However, current LED lighting color temperature adjustment modules on the market typically use a combination of a chip and a MOSFET to achieve color temperature adjustment. This structure results in relatively high manufacturing costs. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a resistive LED lamp color temperature adjustment module that can achieve multi-level color temperature adjustment, is simple and reliable in design, easy to produce and maintain, and has low manufacturing cost.

[0006] To achieve the above objectives, the specific solution of this utility model is as follows:

[0007] A resistive LED lamp color temperature adjustment module includes a positive power input terminal DC+, a negative power input terminal DC-, a DIP switch CN1, a dual-color lamp board, a first resistor network, a second resistor network, a third resistor network, and a fourth resistor network.

[0008] The positive power input terminal DC+ is connected to the positive terminal of the dual-color LED board; the negative power input terminal DC- is connected to the DIP switch CN1; the negative terminal of the dual-color LED board is connected to the DIP switch CN1; the first resistor network, the second resistor network, the third resistor network, and the fourth resistor network are respectively connected to the DIP switch CN1 and the negative terminal of the dual-color LED board; the resistance values ​​of the first resistor network, the second resistor network, the third resistor network, and the fourth resistor network are all different.

[0009] Furthermore, the DIP switch CN1 has 12 pins, numbered sequentially as pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, pin 9, pin 10, pin 11, and pin 12.

[0010] Among them, pin 1 and pin 12 are pin pairs; pin 2 and pin 11 are pin pairs; pin 3 and pin 10 are pin pairs; pin 5 and pin 8 are pin pairs; pin 6 and pin 7 are pin pairs; pin 4 and pin 9 are common pins, all of which are connected to the negative power input terminal DC-.

[0011] Pins 1, 11, and 12 are shorted and connected to the negative terminal of the dual-color LED board; pin 2 is connected to the negative terminal of the dual-color LED board through the first resistor network; pin 3 is connected to the negative terminal of the dual-color LED board through the second resistor network; pins 5, 6, and 7 are shorted and connected to the negative terminal of the dual-color LED board; pin 8 is connected to the negative terminal of the dual-color LED board through the third resistor network; pin 10 is connected to the negative terminal of the dual-color LED board through the fourth resistor network.

[0012] Furthermore, the dual-color light panel includes a cold light group and a warm light group; the positive terminals of the cold light group and the warm light group are respectively connected to the positive input terminal DC+ of the power supply; the negative terminal C- of the cold light group is connected to the first resistor network and the second resistor network; and pins 5, 6 and 7 are shorted and then connected to the negative terminal C- of the cold light group.

[0013] Pins 1, 11, and 12 are shorted and connected to the negative terminal W- of the warm light group; the negative terminal W- of the warm light group is connected to the first resistor network and the second resistor network.

[0014] Furthermore, in this invention, the first resistor network includes multiple first resistors R1 with the same resistance value and connected in parallel.

[0015] Furthermore, in this invention, the second resistor network includes multiple second resistors R2 with the same resistance value and connected in parallel.

[0016] Furthermore, the third resistor network of this invention includes multiple third resistors R3 with the same resistance value and connected in parallel.

[0017] Furthermore, the fourth resistor network of this invention includes multiple fourth resistors R4 with the same resistance value and connected in parallel.

[0018] The beneficial effects of this utility model are as follows: This utility model achieves multi-level color temperature adjustment by changing the resistance value. The design is simple and reliable, easy to produce and maintain, and has low manufacturing cost. It is suitable for various scenarios such as indoor lighting and commercial lighting, which helps to improve the user experience. Attached Figure Description

[0019] Figure 1 This is the circuit diagram of the resistive LED lamp color temperature adjustment module of this utility model;

[0020] Explanation of reference numerals in the attached diagram: 100, dual-color LED panel; 200, first resistor network; 300, second resistor network; 400, third resistor network; 500, fourth resistor network. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the present invention.

[0022] like Figure 1 As shown, the resistive LED lamp color temperature adjustment module described in this embodiment includes a positive power input terminal DC+, a negative power input terminal DC-, a DIP switch CN1, a dual-color lamp board 100, a first resistor network 200, a second resistor network 300, a third resistor network 400, and a fourth resistor network 500.

[0023] The positive power input terminal DC+ is connected to the positive terminal of the dual-color lamp board 100; the negative power input terminal DC- is connected to the DIP switch CN1; the negative terminal of the dual-color lamp board 100 is connected to the DIP switch CN1; the first resistor network 200, the second resistor network 300, the third resistor network 400, and the fourth resistor network 500 are respectively connected to the DIP switch CN1 and the negative terminal of the dual-color lamp board 100; the resistance values ​​of the first resistor network 200, the second resistor network 300, the third resistor network 400, and the fourth resistor network 500 are all different.

[0024] Specifically, in practical use, the resistive LED color temperature adjustment module of this embodiment selectively connects to specific resistor networks through different pin combinations of the DIP switch, thereby changing the current ratio flowing through the dual-color lamp. Specifically, when the DIP switch is in a certain position, a specific resistor network is connected to the circuit, forming a corresponding current distribution ratio, thus adjusting the mixing ratio of cool and warm light. The different resistance values ​​of the resistor networks allow the module to switch between three or five color temperature modes to meet the user's needs for different color temperatures.

[0025] This embodiment achieves multi-level color temperature adjustment by changing the resistance value. The design is simple and reliable, easy to produce and maintain, and has low manufacturing cost. It is suitable for various scenarios such as indoor lighting and commercial lighting, and helps to improve the user experience.

[0026] like Figure 1 As shown, in some embodiments of the resistive LED color temperature adjustment module, the DIP switch CN1 has 12 pins, numbered sequentially as pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, pin 9, pin 10, pin 11, and pin 12; wherein pin 1 and pin 12 are pin pairs; pin 2 and pin 11 are pin pairs; pin 3 and pin 10 are pin pairs; pin 5 and pin 8 are pin pairs; pin 6 and pin 7 are pin pairs; and pin 4 and pin 9 are common. All pins are connected to the negative DC- terminal of the power supply; pins 1, 11, and 12 are shorted and then connected to the negative terminal of the dual-color LED board 100; pin 2 is connected to the negative terminal of the dual-color LED board 100 through the first resistor network 200; pin 3 is connected to the negative terminal of the dual-color LED board 100 through the second resistor network 300; pins 5, 6, and 7 are shorted and then connected to the negative terminal of the dual-color LED board 100; pin 8 is connected to the negative terminal of the dual-color LED board 100 through the third resistor network 400; pin 10 is connected to the negative terminal of the dual-color LED board 100 through the fourth resistor network 500. In some embodiments of the resistive LED color temperature adjustment module, the dual-color lamp board 100 includes a cold light lamp group and a warm light lamp group; the positive terminals of the cold light lamp group and the warm light lamp group are respectively connected to the positive power input terminal DC+; the negative terminal C- of the cold light lamp group is connected to the first resistor network 200 and the second resistor network 300; pins 5, 6, and 7 are shorted and connected to the negative terminal C- of the cold light lamp group; pins 1, 11, and 12 are shorted and connected to the negative terminal W- of the warm light lamp group; the negative terminal W- of the warm light lamp group is connected to the first resistor network 200 and the second resistor network 300.

[0027] Specifically, such as Figure 1As shown, to facilitate the explanation of this embodiment, taking a five-position DIP switch as an example, the positions of pins 1 and 12 are defined as the first position, pins 2 and 11 as the second position, pins 3 and 10 as the third position, pins 5 and 8 as the fourth position, and pins 6 and 7 as the fifth position. When the user switches to the first position, pins 1, 12, 4, and 9 are short-circuited and conduction is achieved. At this time, the warm light group is fully lit, while the cool light group is not lit, thus forming the first current distribution ratio. If the user switches to the second position, pins 11 and 9 are short-circuited, and pins 2 and 4 are short-circuited. The cool light group is connected to pin 2 through the first resistor network 200. At this time, the negative terminal C- of the cool light group is connected to the negative power input terminal DC- through the first resistor network 200, and the negative terminal C- of the warm light group is connected to the negative power input terminal DC-. W- is connected to the negative power input DC- via pins 11 and 9, thus forming the second current distribution ratio. When switched to the third setting, the negative C- of the cool light group is connected to the negative power input DC- via the second resistor network 300, and the negative W- of the warm light group is connected to the negative power input DC- via the fourth resistor network 500, thus forming the third current distribution ratio. When switched to the fourth setting, the negative C- of the cool light group is connected to the negative power input DC- via pins 5 and 4, and the negative W- of the warm light group is connected to the negative power input DC- via the third resistor network 400, thus forming the fourth current distribution ratio. When switched to the fifth setting, pins 7 and 9 are shorted and connected, and pins 4 and 6 are shorted and connected. At this time, the warm light group is not lit, while the cool light group is fully lit, thus forming the fifth current distribution ratio.

[0028] This embodiment selectively connects specific resistor networks to different pin combinations of the DIP switch CN1, thereby altering the current ratio flowing through the cool light and warm light lamp groups. When the DIP switch CN1 is in a certain position, a specific resistor network is connected to the circuit, forming a corresponding current distribution ratio, thus adjusting the mixing ratio of cool and warm light. By adjusting the position of the DIP switch CN1, switching to other positions sequentially allows different resistor networks to be connected to the circuit, thereby achieving the switching of multiple color temperature modes. In each position, the current ratio of the cool light and warm light lamp groups is precisely controlled through the resistance value design of the resistor network, ultimately achieving the desired color temperature effect.

[0029] like Figure 1As shown, in some embodiments of the resistive LED color temperature adjustment module, the first resistor network 200 includes multiple first resistors R1 with the same resistance value connected in parallel. The number of first resistors R1 can be freely set according to actual design needs, such as three first resistors R1. Through this arrangement, the resistor network uses a parallel connection of multiple resistors, which not only improves circuit stability but also reduces the risk of the entire module failing due to the failure of a single resistor. For example, the first resistor network 200 is composed of multiple 10-ohm first resistors R1 connected in parallel; even if one resistor fails, the other resistors can still maintain the normal operation of the circuit. This design improves the reliability of the module while ensuring performance. Furthermore, the parallel connection method also facilitates the adjustment of the resistance value of the resistor network.

[0030] like Figure 1 As shown, in some embodiments of the resistive LED color temperature adjustment module, the second resistor network 300 includes multiple second resistors R2 with the same resistance value connected in parallel. The number of second resistors R2 can be freely set according to actual design needs; for example, three second resistors R2 can be set. Through this arrangement, the resistor network uses a parallel connection of multiple resistors, which not only improves circuit stability but also reduces the risk of the entire module failing due to the failure of a single resistor. For example, the second resistor network 300 is composed of multiple 20-ohm second resistors R2 connected in parallel; even if one resistor fails, the other resistors can still maintain the normal operation of the circuit. This design improves the reliability of the module while ensuring performance. Furthermore, the parallel connection method also facilitates the adjustment of the resistance value of the resistor network.

[0031] like Figure 1 As shown, in some embodiments of the resistive LED color temperature adjustment module, the third resistor network 400 includes multiple third resistors R3 with the same resistance value connected in parallel. The number of third resistors R3 can be freely set according to actual design needs; for example, three third resistors R3 can be set. Through this arrangement, the resistor network uses a parallel connection of multiple resistors, which not only improves circuit stability but also reduces the risk of the entire module failing due to the failure of a single resistor. For example, the third resistor network 400 is composed of multiple 30-ohm third resistors R3 connected in parallel; even if one resistor fails, the other resistors can still maintain the normal operation of the circuit. This design improves the reliability of the module while ensuring performance. Furthermore, the parallel connection method also facilitates the adjustment of the resistance value of the resistor network.

[0032] like Figure 1As shown, in some embodiments of the resistive LED color temperature adjustment module, the fourth resistor network 500 includes multiple fourth resistors R4 with the same resistance value connected in parallel. The number of fourth resistors R4 can be freely set according to actual design needs; for example, three fourth resistors R4 can be set. Through this arrangement, the resistor network uses a parallel connection of multiple resistors, which not only improves circuit stability but also reduces the risk of the entire module failing due to the failure of a single resistor. For example, the fourth resistor network 500 is composed of multiple 40-ohm fourth resistors R4 connected in parallel; even if one resistor fails, the other resistors can still maintain the normal operation of the circuit. This design improves the reliability of the module while ensuring performance. Furthermore, the parallel connection method also facilitates the adjustment of the resistance value of the resistor network.

[0033] The above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included within the protection scope of the present utility model patent application.

Claims

1. A resistive LED lamp color temperature adjustment module, characterized in that: It includes a positive power input terminal DC+, a negative power input terminal DC-, a DIP switch CN1, a dual-color lamp board (100), a first resistor network (200), a second resistor network (300), a third resistor network (400), and a fourth resistor network (500). The positive power input terminal DC+ is connected to the positive terminal of the dual-color lamp board (100); the negative power input terminal DC- is connected to the DIP switch CN1; the negative terminal of the dual-color lamp board (100) is connected to the DIP switch CN1; the first resistor network (200), the second resistor network (300), the third resistor network (400), and the fourth resistor network (500) are respectively connected to the DIP switch CN1 and the negative terminal of the dual-color lamp board (100); the resistance values ​​of the first resistor network (200), the second resistor network (300), the third resistor network (400), and the fourth resistor network (500) are all different.

2. The resistive LED lamp color temperature adjustment module according to claim 1, characterized in that: The DIP switch CN1 has 12 pins, numbered sequentially as pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7, pin 8, pin 9, pin 10, pin 11, and pin 12. Among them, pin 1 and pin 12 are pin pairs; pin 2 and pin 11 are pin pairs; pin 3 and pin 10 are pin pairs; pin 5 and pin 8 are pin pairs; pin 6 and pin 7 are pin pairs; pin 4 and pin 9 are common pins, all of which are connected to the negative power input terminal DC-. Pins 1, 11, and 12 are shorted and connected to the negative terminal of the dual-color LED board (100); pin 2 is connected to the negative terminal of the dual-color LED board (100) through the first resistor network (200); pin 3 is connected to the negative terminal of the dual-color LED board (100) through the second resistor network (300); pins 5, 6, and 7 are shorted and connected to the negative terminal of the dual-color LED board (100); pin 8 is connected to the negative terminal of the dual-color LED board (100) through the third resistor network (400); pin 10 is connected to the negative terminal of the dual-color LED board (100) through the fourth resistor network (500).

3. The resistive LED lamp color temperature adjustment module according to claim 2, characterized in that: The dual-color light panel (100) includes a cold light group and a warm light group; the positive terminals of the cold light group and the warm light group are respectively connected to the positive power input terminal DC+; the negative terminal C- of the cold light group is connected to the first resistor network (200) and the second resistor network (300); pins 5, 6 and 7 are shorted and then connected to the negative terminal C- of the cold light group; Pins 1, 11, and 12 are shorted and connected to the negative terminal W- of the warm light group; the negative terminal W- of the warm light group is connected to the first resistor network (200) and the second resistor network (300).

4. The resistive LED lamp color temperature adjustment module according to claim 1, characterized in that: The first resistor network (200) includes multiple first resistors R1 with the same resistance value and connected in parallel.

5. The resistive LED lamp color temperature adjustment module according to claim 1, characterized in that: The second resistor network (300) includes a plurality of second resistors R2 with the same resistance value and connected in parallel.

6. The resistive LED lamp color temperature adjustment module according to claim 1, characterized in that: The third resistor network (400) includes multiple third resistors R3 with the same resistance value connected in parallel.

7. The resistive LED lamp color temperature adjustment module according to claim 1, characterized in that: The fourth resistor network (500) includes multiple fourth resistors R4 with the same resistance value and connected in parallel.

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