An adjustable color temperature LED lamp

Abstract

The utility model provides a kind of adjustable color temperature LED lamp, including lampshade, light source plate is equipped in the lower lampshade, light source plate is tightly in the upper heat conduction plate;PCB board is equipped in the lower heat conduction plate, and the brightness and color temperature of lamp pearl on light source plate are controlled by PCB board;Lamp cup is equipped in the lower PCB board, and lamp cup and lampshade buckle connection, light source plate, heat conduction plate and PCB board are clamped and fixed;The upper surface of the bottom of lamp cup is equipped with heat conduction aluminum piece, and heat conduction aluminum piece is in contact with light source plate.

Description

Technical Field

[0001] This utility model belongs to the field of LED lighting technology, and in particular relates to an adjustable color temperature LED lamp. Background Technology

[0002] With global emphasis on energy conservation and emission reduction, LED lights are increasingly widely used in the lighting field due to their high efficiency, energy saving, environmental friendliness, and health benefits. Among these applications, there is a strong market demand for LED lights with multi-level adjustable color temperature, as many scenarios require a single light to switch between warm and cool light colors. However, since LEDs convert only about 20%-30% of their electrical energy into light energy during operation, releasing the remaining 70%-80% as heat, poor heat dissipation can lead to increased chip temperature, accelerated light decay, shortened lifespan, and even lamp damage. Therefore, heat dissipation is a key factor in ensuring stable performance and extended lifespan of LED lights. Effective heat dissipation of the LED chips is essential to guarantee the lighting effect and stable color temperature.

[0003] Existing patent CN106662297A discloses an LED lamp capable of freely converting color temperature and a method for converting color temperature using the LED lamp. The LED lamp may include a monochromatic or white LED, a fixed filter, and a movable color temperature conversion filter. The LED lamp can achieve illumination light with the desired color temperature and color rendering index by gradually and reversibly expanding and reducing the overlap area between the fixed filter and the movable color temperature conversion filter, thus offering high ease of use and economic efficiency. Utility Model Content

[0004] There is a strong market demand for LED lights with multi-level adjustable color temperature, as many applications require a single light that can switch between warm and cool color temperatures. Meanwhile, the temperature of the LED chip directly affects its luminous efficiency. When the temperature rises, the luminous efficiency of the LED decreases, leading to a reduction in luminous flux and affecting the lighting effect. High temperatures can also cause color temperature shifts in LEDs, altering the color of the light and affecting visual comfort. Therefore, heat dissipation is a key factor in ensuring stable performance and extending the lifespan of LED lights. To guarantee the lighting effect and stable color temperature of LEDs, effective heat dissipation of the LED chips is necessary. Thus, there is a need for LED lights with good heat dissipation capabilities and multi-level adjustable color temperature.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an adjustable color temperature LED lamp, including a lampshade, a light source board provided below the lampshade, the light source board being tightly attached to the top of a heat-conducting plate; a PCB board provided below the heat-conducting plate, the PCB board controlling the brightness and color temperature of the LED beads on the light source board; a lamp cup provided below the PCB board, the lamp cup and the lampshade being fastened together, clamping and fixing the light source board, the heat-conducting plate and the PCB board; a heat-conducting aluminum component provided on the upper surface of the bottom of the lamp cup, the heat-conducting aluminum component being in contact with the light source board.

[0006] As a further improvement of this utility model, the lampshade is provided with protrusions on the left and right sides, with a rotating lever protruding above the protrusions on the upper surface of the lampshade, and a buckle extending beyond the lower edge of the lampshade below.

[0007] As a further improvement of this utility model, the outer wall around the lampshade is provided with buckles, which correspond to the slots on the inner wall of the lamp cup, and are fastened and fixed during installation.

[0008] As a further improvement of this utility model, a switch handle is provided on the lower surface of the PCB board, and a travel groove corresponding to the position of the switch handle is provided on the lamp cup, through which the switch handle passes.

[0009] As a further improvement of this utility model, the switch handle can move linearly within the travel groove, and the PCB board linearly controls the brightness and color temperature of the LED beads on the light source board according to the specific position of the switch handle.

[0010] As a further improvement of this utility model, the left and right sides of the upper surface of the lamp cup are provided with locking pins corresponding to the buckle positions below the lamp cover protrusion. During installation, the locking pins and buckles are positioned and fixed by engaging.

[0011] As a further improvement of this utility model, the heat-conducting aluminum component is located near the pin on the upper surface of the lamp cup. When installed, the heat-conducting aluminum component is in close contact with the light source plate, so as to conduct heat from the light source plate to the lamp cup.

[0012] As a further improvement of this utility model, an aluminum heat-conducting layer is provided at the junction of the upper surface of the heat-conducting plate and the light source plate.

[0013] The beneficial effects of this invention are as follows: The PCB board and its switch handle allow for linear control of the current in different circuits of the LED beads on the light source board. Changes in the current value of each circuit adjust the brightness of that LED bead. Furthermore, the mixing effect of high and low color temperatures enables color temperature switching. Simultaneously, the design of the heat-conducting plate and the heat-conducting aluminum components on the lamp cup allows for multi-path heat dissipation from the light source board to the outside of the LED lamp, achieving excellent heat dissipation and ensuring stable illumination and color temperature unaffected by temperature. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention.

[0015] Figure 2 These are top views of the lampshade and bottom views of the lamp cup of this utility model.

[0016] Figure 3 These are the bottom view and side sectional view of this utility model.

[0017] In the diagram, 1 is the lampshade, 1.1 is the left boss, 1.2 is the right boss, 2 is the light source board, 3 is the heat conduction plate, 4 is the PCB board, 4.1 is the switch handle, 5 is the lamp cup, 5.1 is the left jack, 5.2 is the right jack, and 5.3 is the travel groove. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1: An adjustable color temperature LED light, such as Figure 1 As shown, the lamp includes a lampshade 1, a light source board 2 below the lampshade 1, and the light source board 2 is closely attached to the top of the heat-conducting plate 3; a PCB board 4 is located below the heat-conducting plate 3, and the PCB board 4 controls the brightness and color temperature of the LEDs on the light source board 2; a lamp cup 5 is located below the PCB board 4, and the lamp cup 5 and the lampshade 1 are fastened together to clamp and fix the light source board 2, the heat-conducting plate 3 and the PCB board 4; a heat-conducting aluminum part is provided on the upper surface of the bottom of the lamp cup 5, and the heat-conducting aluminum part is in contact with the light source board 2.

[0020] The lampshade 1 and the lamp holder 5 are secured together by snap-fit ​​and slot-locking mechanisms, simplifying installation. After installation, the outer edge of the light source plate 2 is clamped and fixed by the upper surface of the lamp holder 5 and the lampshade 1. Simultaneously, the heat-conducting aluminum component on the upper surface of the lamp holder 5 conducts heat generated by the light source plate 2 to the lamp holder 5 for rapid heat dissipation. Meanwhile, the upper surface of the heat-conducting plate 3 has a heat-conducting aluminum layer, and the lower part of the light source plate 2 is in close contact with this layer, allowing the heat-conducting plate 3 to also conduct heat from the light source plate 2 to the lamp holder 5. These two heat conduction paths increase the heat dissipation efficiency of the light source plate 2 during use.

[0021] like Figure 2 As shown, the lampshade 1 has protrusions on both the left and right sides. Above the protrusions is a rotating lever protruding from the upper surface of the lampshade 1, and below it is a clip extending beyond the lower edge of the lampshade 1. The upper surface of the lamp holder 5 has pins on both the left and right sides corresponding to the positions of the clips below the protrusions of the lampshade 1. During installation, the pins and clips engage to position and secure the lamp holder. The design of the clips and pins facilitates the positioning of the lampshade 1 and the lamp holder 5 during installation.

[0022] During installation, the left protrusion 1.1 of the lampshade 1 corresponds to the left locking pin 5.1 on the lamp cup 5, and the right protrusion 1.2 corresponds to the right locking pin 5.2 on the lamp cup 5, so that the relative position of the lamp cup 5 and the lampshade 1 can be accurately sensed.

[0023] During installation, the user can easily and quickly install the lamp by touching the rotating lever above the protrusion of lampshade 1.

[0024] like Figure 3 As shown, a switch handle 4.1 is provided on the lower surface of the PCB board 4, and a travel groove 5.3 corresponding to the position of the switch handle 4.1 is provided on the lamp cup 5. The switch handle 4.1 extends out of the travel groove 5.3. The switch handle 4.1 can move linearly within the travel groove 5.3. The PCB board 4 linearly controls the brightness and color temperature of the lamp beads on the light source board 2 according to the specific position of the switch handle 4.1.

[0025] Through the PCB board 4 and its switch handle 4.1, the current of different circuits of LED beads on the light source board 2 can be linearly controlled. The change of the current value of each circuit adjusts the brightness of the LED bead in that circuit. Then, through the mixing effect of high and low color temperatures, the color temperature switching is achieved.

[0026] Example 2: An adjustable color temperature LED lamp includes a lampshade 1, a light source board 2 located below the lampshade 1, the light source board 2 being tightly attached to the top of a heat-conducting plate 3; a PCB board 4 located below the heat-conducting plate 3, the PCB board 4 controlling the brightness and color temperature of the LEDs on the light source board 2; a lamp cup 5 located below the PCB board 4, the lamp cup 5 and the lampshade 1 being fastened together, clamping and fixing the light source board 2, the heat-conducting plate 3 and the PCB board 4; a heat-conducting aluminum component is provided on the upper surface of the bottom of the lamp cup 5, the heat-conducting aluminum component being in contact with the light source board 2.

[0027] Specifically, this embodiment uses a low-voltage LED lamp with the GX53 interface standard. GX53 is a common low-voltage lamp interface standard that uses flat contacts for power supply and does not require threaded rotation for fixing. During installation, simply align the lamp body with the base and gently place it to turn on the power. The structure is simple and highly safe.

[0028] The lampshade 1 and the lamp holder 5 are secured together by snap-fit ​​and slot-locking mechanisms, simplifying installation. After installation, the outer edge of the light source plate 2 is clamped and fixed by the upper surface of the lamp holder 5 and the lampshade 1. Simultaneously, the heat-conducting aluminum component on the upper surface of the lamp holder 5 conducts heat generated by the light source plate 2 to the lamp holder 5 for rapid heat dissipation. Meanwhile, the upper surface of the heat-conducting plate 3 has a heat-conducting aluminum layer, and the lower part of the light source plate 2 is in close contact with this layer, allowing the heat-conducting plate 3 to also conduct heat from the light source plate 2 to the lamp holder 5. These two heat conduction paths increase the heat dissipation efficiency of the light source plate 2 during use.

[0029] The lampshade 1 has protrusions on both the left and right sides. Above the protrusions is a rotating lever protruding from the upper surface of the lampshade 1, and below it is a clip extending beyond the lower edge of the lampshade 1. The upper surface of the lamp holder 5 has pins on both the left and right sides corresponding to the positions of the clips below the protrusions of the lampshade 1. During installation, the pins and clips engage to position and secure the lamp holder. The design of the clips and pins facilitates the positioning of the lampshade 1 and the lamp holder 5 during installation.

[0030] During installation, the left protrusion 1.1 of the lampshade 1 corresponds to the left locking pin 5.1 on the lamp cup 5, and the right protrusion 1.2 corresponds to the right locking pin 5.2 on the lamp cup 5, so that the relative position of the lamp cup 5 and the lampshade 1 can be accurately sensed.

[0031] During installation, the user can easily and quickly install the lamp by touching the rotating lever above the protrusion of lampshade 1.

[0032] In this embodiment, the LED beads on the light source board 2 are divided into two categories: warm light beads and cool light beads. Each is connected to two sets of driving circuits on the PCB board 4 and is controlled separately by the PCB board 4. The warm light and cool light beads are controlled by independent driving circuits, which can ensure that the brightness adjustment does not interfere with each other.

[0033] A switch handle 4.1 is provided on the lower surface of the PCB board 4, and a travel groove 5.3 corresponding to the position of the switch handle 4.1 is provided on the lamp cup 5. The switch handle 4.1 extends out of the travel groove 5.3. The switch handle 4.1 can move linearly within the travel groove 5.3. The PCB board 4 linearly controls the brightness and color temperature of the lamp beads on the light source board 2 according to the specific position of the switch handle 4.1.

[0034] The PCB board 4 and its switch handle 4.1 can linearly control the current of different circuits of the LED beads on the light source board 2. The change in the current value of each circuit adjusts the brightness of the LED bead in that circuit, and the color temperature switching is achieved through the mixing effect of high and low color temperatures. By linearly adjusting the circuit current through the switch handle 4.1, multiple levels of color temperature display effects can be achieved.

[0035] Example 3: An adjustable color temperature LED lamp includes a lampshade 1, a light source board 2 below the lampshade 1, the light source board 2 being tightly attached to the top of a heat-conducting plate 3; a PCB board 4 below the heat-conducting plate 3, the PCB board 4 controlling the brightness and color temperature of the LEDs on the light source board 2; a lamp cup 5 below the PCB board 4, the lamp cup 5 and the lampshade 1 being fastened together, clamping and fixing the light source board 2, the heat-conducting plate 3 and the PCB board 4; a heat-conducting aluminum component is provided on the upper surface of the bottom of the lamp cup 5, the heat-conducting aluminum component being in contact with the light source board 2.

[0036] Specifically, this embodiment uses a low-voltage LED lamp with the GX53 interface standard. GX53 is a common low-voltage lamp interface standard that uses flat contacts for power supply and does not require threaded rotation for fixing. During installation, simply align the lamp body with the base and gently place it to turn on the power. The structure is simple and highly safe.

[0037] The lampshade 1 and the lamp holder 5 are secured together by snap-fit ​​and slot-locking mechanisms, simplifying installation. After installation, the outer edge of the light source plate 2 is clamped and fixed by the upper surface of the lamp holder 5 and the lampshade 1. Simultaneously, the heat-conducting aluminum component on the upper surface of the lamp holder 5 conducts heat generated by the light source plate 2 to the lamp holder 5 for rapid heat dissipation. Meanwhile, the upper surface of the heat-conducting plate 3 has a heat-conducting aluminum layer, and the lower part of the light source plate 2 is in close contact with this layer, allowing the heat-conducting plate 3 to also conduct heat from the light source plate 2 to the lamp holder 5. These two heat conduction paths increase the heat dissipation efficiency of the light source plate 2 during use.

[0038] The lampshade 1 has protrusions on both the left and right sides. Above the protrusions is a rotating lever protruding from the upper surface of the lampshade 1, and below it is a clip extending beyond the lower edge of the lampshade 1. The upper surface of the lamp holder 5 has pins on both the left and right sides corresponding to the positions of the clips below the protrusions of the lampshade 1. During installation, the pins and clips engage to position and secure the lamp holder. The design of the clips and pins facilitates the positioning of the lampshade 1 and the lamp holder 5 during installation.

[0039] During installation, the left protrusion 1.1 of the lampshade 1 corresponds to the left locking pin 5.1 on the lamp cup 5, and the right protrusion 1.2 corresponds to the right locking pin 5.2 on the lamp cup 5, so that the relative position of the lamp cup 5 and the lampshade 1 can be accurately sensed.

[0040] During installation, the user can easily and quickly install the lamp by touching the rotating lever above the protrusion of lampshade 1.

[0041] In this embodiment, the LED beads on the light source board 2 are divided into two categories: warm light beads and cool light beads. Each is connected to two sets of driving circuits on the PCB board 4 and is controlled separately by the PCB board 4. The warm light and cool light beads are controlled by independent driving circuits, which can ensure that the brightness adjustment does not interfere with each other.

[0042] A switch handle 4.1 is provided on the lower surface of the PCB board 4, and a travel groove 5.3 corresponding to the position of the switch handle 4.1 is provided on the lamp cup 5. The switch handle 4.1 extends out of the travel groove 5.3. The switch handle 4.1 can move linearly within the travel groove 5.3. The PCB board 4 linearly controls the brightness and color temperature of the lamp beads on the light source board 2 according to the specific position of the switch handle 4.1.

[0043] The PCB board 4 and its switch handle 4.1 can linearly control the current of different circuits of the LED beads on the light source board 2. The change in the current value of each circuit adjusts the brightness of the LED bead in that circuit, and the color temperature switching is achieved through the mixing effect of high and low color temperatures. By linearly adjusting the circuit current through the switch handle 4.1, multiple levels of color temperature display effects can be achieved.

[0044] In this embodiment, the external structures such as the lampshade 1 and lamp cup 5 are all within the conventional GX53 product outline, consistent with the shape of conventional products, and compatible with lamp holders used in the market. This makes the product more practical.

[0045] Example 4: An adjustable color temperature LED lamp includes a lampshade 1, a light source board 2 below the lampshade 1, the light source board 2 being tightly attached to the top of a heat-conducting plate 3; a PCB board 4 below the heat-conducting plate 3, the PCB board 4 controlling the brightness and color temperature of the LEDs on the light source board 2; a lamp cup 5 below the PCB board 4, the lamp cup 5 and the lampshade 1 being fastened together, clamping and fixing the light source board 2, the heat-conducting plate 3 and the PCB board 4; a heat-conducting aluminum component is provided on the upper surface of the bottom of the lamp cup 5, the heat-conducting aluminum component being in contact with the light source board 2.

[0046] Specifically, this embodiment uses a low-voltage LED lamp with the GX53 interface standard. GX53 is a common low-voltage lamp interface standard that uses flat contacts for power supply and does not require threaded rotation for fixing. During installation, simply align the lamp body with the base and gently place it to turn on the power. The structure is simple and highly safe.

[0047] The lampshade 1 and the lamp holder 5 are secured together by snap-fit ​​and slot-locking mechanisms, simplifying installation. After installation, the outer edge of the light source plate 2 is clamped and fixed by the upper surface of the lamp holder 5 and the lampshade 1. Simultaneously, the heat-conducting aluminum component on the upper surface of the lamp holder 5 conducts heat generated by the light source plate 2 to the lamp holder 5 for rapid heat dissipation. Meanwhile, the upper surface of the heat-conducting plate 3 has a heat-conducting aluminum layer, and the lower part of the light source plate 2 is in close contact with this layer, allowing the heat-conducting plate 3 to also conduct heat from the light source plate 2 to the lamp holder 5. These two heat conduction paths increase the heat dissipation efficiency of the light source plate 2 during use.

[0048] The lampshade 1 has protrusions on both the left and right sides. Above the protrusions is a rotating lever protruding from the upper surface of the lampshade 1, and below it is a clip extending beyond the lower edge of the lampshade 1. The upper surface of the lamp holder 5 has pins on both the left and right sides corresponding to the positions of the clips below the protrusions of the lampshade 1. During installation, the pins and clips engage to position and secure the lamp holder. The design of the clips and pins facilitates the positioning of the lampshade 1 and the lamp holder 5 during installation.

[0049] During installation, the left protrusion 1.1 of the lampshade 1 corresponds to the left locking pin 5.1 on the lamp cup 5, and the right protrusion 1.2 corresponds to the right locking pin 5.2 on the lamp cup 5, so that the relative position of the lamp cup 5 and the lampshade 1 can be accurately sensed.

[0050] During installation, the user can easily and quickly install the lamp by touching the rotating lever above the protrusion of lampshade 1.

[0051] In this embodiment, the LED beads on the light source board 2 are divided into two categories: warm light beads and cool light beads. Each is connected to two sets of driving circuits on the PCB board 4 and is controlled separately by the PCB board 4. The warm light and cool light beads are controlled by independent driving circuits, which can ensure that the brightness adjustment does not interfere with each other.

[0052] A switch handle 4.1 is provided on the lower surface of the PCB board 4, and a travel groove 5.3 corresponding to the position of the switch handle 4.1 is provided on the lamp cup 5. The switch handle 4.1 extends out of the travel groove 5.3. The switch handle 4.1 can move linearly within the travel groove 5.3. The PCB board 4 linearly controls the brightness and color temperature of the lamp beads on the light source board 2 according to the specific position of the switch handle 4.1.

[0053] The PCB board 4 and its switch handle 4.1 can linearly control the current of different circuits of the LED beads on the light source board 2. The change in the current value of each circuit adjusts the brightness of the LED bead in that circuit, and the color temperature switching is achieved through the mixing effect of high and low color temperatures. By linearly adjusting the circuit current through the switch handle 4.1, multiple levels of color temperature display effects can be achieved.

[0054] In this embodiment, the external structures such as the lampshade 1 and lamp cup 5 are all within the conventional GX53 product outline, consistent with the shape of conventional products, and compatible with lamp holders used in the market. This makes the product more practical.

[0055] In practical applications, the warm-light LED beads in this embodiment have a color temperature of approximately 2700K-3000K, emitting a warm yellow light suitable for creating a cozy atmosphere. The cool-light LED beads have a color temperature of approximately 6000K-7000K, emitting white light close to natural light, suitable for scenarios requiring clear illumination. By adjusting the brightness ratio of the two sets of LED beads, light of different color temperatures can be mixed.

Claims

1. An adjustable color temperature LED lamp, characterized in that, The lamp includes a lampshade, a light source board located below the lampshade, and the light source board is attached to the top of the heat-conducting plate; a PCB board is located below the heat-conducting plate, which controls the brightness and color temperature of the LEDs on the light source board; a lamp cup is located below the PCB board, and the lamp cup and lampshade are fastened together to clamp and fix the light source board, heat-conducting plate and PCB board; a heat-conducting aluminum component is located on the upper surface of the bottom of the lamp cup, which is in contact with the light source board.

2. The adjustable color temperature LED lamp according to claim 1, characterized in that, The lampshade has protrusions on both the left and right sides. Above the protrusions is a rotating lever that protrudes from the upper surface of the lampshade, and below it is a buckle that extends beyond the lower edge of the lampshade.

3. The adjustable color temperature LED lamp according to claim 1 or 2, characterized in that, The lampshade has clips on its outer walls, which correspond to the slots on the inner wall of the lamp cup for fastening during installation.

4. The adjustable color temperature LED lamp according to claim 1, characterized in that, A switch handle is provided on the lower surface of the PCB board, and a travel groove corresponding to the position of the switch handle is provided on the lamp cup, through which the switch handle passes.

5. The adjustable color temperature LED lamp according to claim 4, characterized in that, The switch handle can move linearly within the travel groove, and the PCB board linearly controls the brightness and color temperature of the LEDs on the light source board according to the specific position of the switch handle.

6. The adjustable color temperature LED lamp according to claim 1, characterized in that, The upper surface of the lamp cup has pins on the left and right sides that correspond to the positions of the clips below the lampshade protrusions. During installation, the pins and clips are engaged and fixed together.

7. The adjustable color temperature LED lamp according to claim 1, characterized in that, The heat-conducting aluminum component is located near the pin on the upper surface of the lamp cup. During installation, the heat-conducting aluminum component is in close contact with the light source board, and conducts heat from the light source board to the lamp cup.

8. The adjustable color temperature LED lamp according to claim 1, characterized in that, An aluminum heat-conducting layer is provided at the point where the upper surface of the heat-conducting plate is tightly bonded to the light source plate.

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