A light intensity adjustable COB lamp strip

Abstract

The utility model discloses a kind of luminosity adjustable COB lamp strips, it is related to a kind of luminosity adjustable COB lamp strip technical field, including shell, the inside of the shell is installed with a kind of luminosity adjustable COB lamp strip mechanism, the top of the shell is installed with luminosity adjusting mechanism.The utility model is started by motor, transmission worm drives louver to overturn by worm wheel, realizes light intensity mechanical regulation, avoids PWM dimming frequency flash problem, and the upper fin is provided with one or more than one recess corresponding to protrusion on both sides, protrusion and recess are embedded together, so that the upper fin and a kind of luminosity adjustable COB lamp strip mainboard connection are more stable, and will not appear the problem of separation, and increase the contact area of the upper fin and a kind of luminosity adjustable COB lamp strip mainboard, increase heat transfer rate, and the heat dissipation effect is better.

Description

Technical Field

[0001] This utility model relates to the technical field of COB light strips with adjustable light intensity, specifically to a COB light strip with adjustable light intensity. Background Technology

[0002] COB LED strips are a new type of high-brightness, high-CRI linear lighting strip. They have an exquisite appearance, soft light, no light spots, good waterproof performance, and adopt a flip-chip encapsulation process.

[0003] The existing type of COB light strip with adjustable brightness has the following drawbacks:

[0004] Color temperature adjustment relies on current control, which leads to uneven light mixing. For example, CN222352166U is a COB light strip that can reduce the dark area of ​​light emission. It welds the COB light source to the surface of a flexible circuit board and covers the outside of the light-emitting chip with a layer of fluorescent colloid with an arc-shaped spherical structure. The fluorescent colloid, together with the light-emitting chip, improves the light efficiency emitted by the light-emitting chip.

[0005] The heat dissipation structure is fixed and cannot adapt to the heat load of different installation environments. For example, CN222352279U is a light strip with adjustable brightness, which uses a thermal bimetallic strip to block the heat transfer during the light emission process.

[0006] Therefore, this utility model uses a motor to start the worm gear, which drives the venetian blind to rotate via a worm wheel, thus achieving mechanical adjustment of light intensity and avoiding the flickering problem of PWM dimming. In addition, each side of the upper fin has one or more grooves corresponding to the protrusion, and the protrusion and groove are embedded together, making the connection between the upper fin and the light-adjustable COB light strip main board more stable and preventing desoldering problems. Moreover, it increases the contact area between the upper fin and the light-adjustable COB light strip main board, increases the heat transfer rate, and improves the heat dissipation effect. Utility Model Content

[0007] The purpose of this invention is to provide a COB light strip with adjustable light intensity to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A COB light strip with adjustable light intensity includes a housing, wherein an adjustable COB light strip mechanism is installed inside the housing, and a light intensity adjustment mechanism is installed on the top of the housing.

[0010] The light intensity adjustment mechanism includes a frame that is threaded to the top of the housing. A mounting frame is fixedly connected to one side of the frame, and a motor is fixedly connected to one end of the mounting frame. A first gear is fixedly connected to the output end of the motor, and a second gear is meshed with one side of the first gear. A rotating shaft is fixedly connected to one end of the second gear and is movably connected through the mounting frame. A guide plate is fixedly connected to one side of the mounting frame, and a rotating shaft is movably connected through the surface of the guide plate. A transmission worm is connected to the surface of the rotating shaft, and a worm gear is meshed with one end of the transmission worm. A connecting shaft is fixedly connected to one end of the worm gear, and a venetian blind is fixedly connected to one end of the connecting shaft.

[0011] A further improvement of this utility model is that: a limiting mechanism for the rotation angle of the Venetian blind is provided on the side of the mounting frame opposite to the transmission worm gear. The limiting mechanism includes a limiting post, a limiting post, and a mounting shaft. The limiting plate is rotatably connected to the side wall of the window housing and connected to the end of the L-shaped part of the Venetian blind. An arc-shaped limiting groove is provided on the limiting plate. The limiting post is embedded in the limiting groove and fixedly connected to the side wall of the window housing. The mounting shaft is installed on one side of the limiting plate. When the motor is started, the transmission worm gear drives the Venetian blind to rotate through the worm wheel. The limiting plate and the limiting post limit the rotation angle of the Venetian blind.

[0012] A further improvement of this utility model is that: the central angle of the limiting groove is 180°, the two ends of the limiting groove are provided with buffer springs, the end of the buffer spring is provided with a buffer plate slidably connected in the limiting groove, the venetian blind has a flip angle of 180°, the flip angle is large, and it will not rotate excessively, making it easy to use.

[0013] A further improvement of this utility model is that: a guide groove is provided in the limiting groove, a guide block is fixed on the buffer plate and slidably connected in the guide groove, and the limiting plate and the limiting column limit the turning angle of the Venetian blind to prevent the Venetian blind from turning excessively.

[0014] A further improvement of this utility model is that: the light intensity adjustable COB light strip mechanism includes a light intensity adjustable COB light strip main board and an upper fin. The light intensity adjustable COB light strip main board is fixedly connected inside the housing. The upper fin and the light intensity adjustable COB light strip main board are riveted together. The lower end of the upper fin has L-shaped portions on both sides. The bottom of the light intensity adjustable COB light strip main board has a concave buckle. The upper fin has one or more grooves on each side corresponding to the protrusion. The protrusion and the groove are embedded together.

[0015] A further improvement of this utility model is that the COB light strip mechanism with adjustable brightness also includes a fin buckle, which separates and fixes the heat sinks of the upper fins together. Each side of the concave buckle has one or more protrusions, and each side of the upper fin has one or more grooves corresponding to the protrusions. The protrusions and grooves are embedded together, making the connection between the upper fins and the concave buckle more stable. Each side of the concave buckle has one or more protrusions, and each side of the upper fin has one or more grooves corresponding to the protrusions. The protrusions and grooves are embedded together.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a COB light strip with adjustable brightness. When the motor starts, the transmission worm gear drives the Venetian blind to rotate via the worm wheel. The limiting plate and limiting post limit the rotation angle of the Venetian blind to prevent it from rotating excessively. When the Venetian blind is in a horizontal state, the light from the COB light strip with adjustable brightness can pass through the frame. When the Venetian blind is in a vertical state, the Venetian blind blocks the frame, preventing the light from the COB light strip with adjustable brightness from passing through the frame. The rotation angle of the Venetian blind is 180°, which is a large rotation angle and will not rotate excessively, making it easy to use and realizing mechanical adjustment of light intensity, avoiding the flicker problem of PWM dimming.

[0018] 2. This utility model provides a COB light strip with adjustable brightness. Each side of the upper fin has one or more grooves corresponding to the protrusion. The protrusion and the groove are embedded together, making the connection between the upper fin and the main board of the COB light strip with adjustable brightness more stable and preventing desoldering. It also increases the contact area between the upper fin and the main board of the COB light strip with adjustable brightness, increases the heat transfer rate, and improves the heat dissipation effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the photometric adjustment mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the photometric adjustment mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of a COB light strip mechanism with adjustable light intensity according to this utility model.

[0024] In the figure: 1. Housing; 2. A COB LED strip mechanism with adjustable light intensity; 20. A COB LED strip main board with adjustable light intensity; 21. L-shaped part; 22. Concave buckle; 23. Upper fin; 24. Fin buckle latch; 3. Light intensity adjustment mechanism; 30. Frame; 31. Mounting frame; 32. Venetian blind; 33. Motor; 34. First gear; 35. Second gear; 36. Worm gear; 37. Connecting shaft; 38. Rotating shaft; 39. Guide plate; 390. Transmission worm; 391. Mounting shaft; 392. Limiting plate; 393. Limiting groove; 394. Buffer spring; 395. Buffer plate; 396. Limiting post; 397. Guide groove; 398. Guide block. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments:

[0026] Example 1

[0027] like Figure 1-5 As shown, this utility model provides a COB light strip with adjustable light intensity, including a housing 1, a COB light strip mechanism 2 with adjustable light intensity installed inside the housing 1, and a light intensity adjustment mechanism 3 installed on the top of the housing 1.

[0028] The light intensity adjustment mechanism 3 includes a frame 30, which is threaded to the top of the housing 1. A mounting frame 31 is fixedly connected to one side of the frame 30. A motor 33 is fixedly connected to one end of the mounting frame 31. A first gear 34 is fixedly connected to the output end of the motor 33. A second gear 35 is meshed with one side of the first gear 34. A rotating shaft 38 is fixedly connected to one end of the second gear 35. The rotating shaft 38 is movably connected to the mounting frame 31. A guide plate 39 is fixedly connected to one side of the interior of the mounting frame 31. The rotating shaft 38 is movably connected to the surface of the guide plate 39. A transmission worm gear 390 is connected to the surface of the rotating shaft 38. A worm wheel 36 is meshed with one end of the transmission worm gear 390. A connecting shaft 37 is fixedly connected to one end of the worm wheel 36. A venetian blind 32 is fixedly connected to one end of the connecting shaft 37. The mounting frame 31 and the transmission worm gear... On the opposite side of 390, a limiting mechanism for the rotation angle of the Venetian blind 32 is provided. The limiting mechanism includes a limiting post 396 and a mounting shaft 391. The limiting plate 392 is rotatably connected to the side wall of the window housing 1 and connected to the end of the L-shaped Venetian blind 21. An arc-shaped limiting groove 393 is provided on the limiting plate 392. The limiting post 396 is embedded in the limiting groove 393 and fixedly connected to the side wall of the window housing 1. The mounting shaft 391 is installed on one side of the limiting plate 392. The central angle of the limiting groove 393 is 180°. Buffer springs 394 are provided at both ends of the limiting groove 393. Buffer plates 395 are slidably connected to the ends of the buffer springs 394 in the limiting groove 393. A guide groove 397 is provided in the limiting groove 393. A guide block 398 is fixedly connected to the guide groove 397 on the buffer plate 395.

[0029] Specifically, the motor 33 is started, and the output end of the motor 33 drives the first gear 34 to rotate. The first gear 34 drives the second gear 35 to mesh and rotate. The second gear 35 drives the rotating shaft 38 to rotate. The rotating shaft 38 drives the transmission worm 390 to rotate, thereby increasing the torque of the motor 33 on the transmission worm 390. The rotating shaft 38 passes through multiple guide plates 39 in sequence. The guide plates 39 guide and limit the rotating shaft 38 and the transmission worm 390 to ensure the stability of the rotation of the transmission worm 390.

[0030] The transmission worm 390 drives the Venetian blind 32 to rotate via the worm wheel 36. The inner ring of the worm wheel 36 has a connecting groove. When installing the Venetian blind 32, the connecting shaft 37 can be directly inserted into the connecting groove of the worm wheel 36. The worm wheel 36 directly drives the Venetian blind 32 to rotate. The installation method is simple and easy to install.

[0031] One end of the mounting shaft 391 is connected to and controlled by the worm gear 36, while the other end of the mounting shaft 391 is rotatably connected to the frame 30 via a limiting mechanism. The limiting mechanism limits the rotation angle of the Venetian blind 32 to prevent it from over-rotating.

[0032] The mounting shaft 391 drives the limiting plate 392 to rotate, and the limiting post 396 slides in the limiting groove 393. When the limiting plate 392 rotates and the end of the limiting groove 393 abuts against the limiting post 396, the mounting shaft 391 can no longer rotate. The rotation angle of the Venetian blind 32 is the angle of the central angle of the limiting groove 393. The limiting groove 393 controls the flipping of the Venetian blind 32. The structure is simple and the control is convenient.

[0033] The central angle of the limiting groove 393 is 180°, which means that the flip angle of the Venetian blind 32 is 180°. When the Venetian blind 32 is in a horizontal state, the light from a COB light strip with adjustable brightness can pass through the frame 30. When the Venetian blind 32 is in a vertical state, the Venetian blind 32 blocks the frame 30, preventing the light from the COB light strip with adjustable brightness from passing through the frame 30. The flip angle of the Venetian blind 32 is 180°, which is a large flip angle and will not rotate excessively, making it easy to use and realizing mechanical adjustment of light intensity, avoiding the flicker problem of PWM dimming.

[0034] The limiting groove 393 has buffer springs 394 at both ends, and buffer plates 395 are slidably connected to the ends of the buffer springs 394 within the limiting groove 393. When the limiting post 396 abuts against the buffer plate 395, the buffer plate 395 presses the buffer springs 394, reducing the impact force of the limiting post 396 on the buffer plate 395, thus providing buffer protection and extending its service life. The inner wall of the limiting groove 393 has a guide groove 397, and the buffer plate 395 has a protruding guide block 398 embedded in the guide groove 397. The guide block 398 and the guide groove 397 guide and limit the movement path of the buffer plate 395, preventing it from jamming.

[0035] Example 2

[0036] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a COB light strip mechanism 2 with adjustable light intensity includes a COB light strip main board 20 with adjustable light intensity and an upper fin 23. The COB light strip main board 20 with adjustable light intensity is fixedly connected to the inside of the housing 1. The upper fin 23 and the COB light strip main board 20 with adjustable light intensity are riveted together. The lower end of the upper fin 23 is provided with L-shaped portions 21 on both sides. The bottom of the COB light strip main board 20 with adjustable light intensity is provided with a concave buckle 22. The COB light strip mechanism 2 with adjustable light intensity also includes a fin buckle 24, which separates and fixes the heat sinks of the upper fin 23 together. The concave buckle 22 has one or more protrusions on each side. The upper fin 23 has one or more grooves on each side corresponding to the protrusions. The protrusions and grooves are embedded together, making the connection between the upper fin 23 and the concave buckle 22 more stable.

[0037] Specifically, when assembling the upper fin 23 and a COB LED strip mainboard 20 with adjustable brightness, a die is used to press the concave buckle 22 downwards. The protrusions at both ends of the groove of the concave buckle 22 will press to both sides. Due to the elasticity of the material, the concave buckle 22 will lock the lower end of the upper fin 23, so that the upper fin 23 and the COB LED strip mainboard 20 with adjustable brightness are firmly connected together.

[0038] The concave buckle 22 has one or more protrusions on each side, and the upper fin 23 has one or more grooves on each side corresponding to the protrusions. The protrusions and grooves are embedded together, making the connection between the upper fin 23 and the COB light strip main board 20 with adjustable brightness more stable and preventing desoldering problems. It also increases the contact area between the upper fin 23 and the COB light strip main board 20 with adjustable brightness, increases the heat transfer rate, and has a better heat dissipation effect.

[0039] The snap-fin buckle, also known as the snap-fin, is a method where the fins are snapped together with snaps. This method makes the fins strong as a whole and maintains a good equidistant relationship. The folded fin, on the other hand, is made by separating the fins with an equidistant folded edge or connecting them together by folding a whole long scale. In this respect, the snap-fin is more robust.

[0040] The working principle of this type of COB light strip with adjustable brightness will be explained in detail below.

[0041] like Figure 1-5 As shown, a chip for an adjustable COB LED strip is first installed on an adjustable COB LED strip mainboard 20. Then, a heat sink fin is installed on one side of the adjustable COB LED strip mainboard 20. When flexible adjustment of the LED strip's light is required, the motor 33 starts, and the transmission worm gear 390 drives the venetian blind 32 to rotate via the worm wheel 36. The limiting plate 392 and the limiting post 396 limit the rotation angle of the venetian blind 32 to prevent excessive rotation. Each side of the upper fin 23 has one or more grooves corresponding to the protrusions. The protrusions and grooves are embedded together, making the connection between the upper fin 23 and the adjustable COB LED strip mainboard 20 more stable and preventing desoldering. Furthermore, it increases the contact area between the upper fin 23 and the adjustable COB LED strip mainboard 20, increasing the heat transfer rate and improving heat dissipation.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A COB light strip with adjustable light intensity, comprising a housing (1), characterized in that: A COB light strip mechanism (2) with adjustable light intensity is installed inside the housing (1), and a light intensity adjustment mechanism (3) is installed on the top of the housing (1); The photometric adjustment mechanism (3) includes a frame (30) threadedly connected to the top of the housing (1). A mounting frame (31) is fixedly connected to one side of the frame (30). A motor (33) is fixedly connected to one end of the mounting frame (31). A first gear (34) is fixedly connected to the output end of the motor (33). A second gear (35) is meshed with one side of the first gear (34). A rotating shaft (38) is fixedly connected to one end of the second gear (35). (38) is movably connected to the mounting frame (31). A guide plate (39) is fixedly connected to one side of the interior of the mounting frame (31). A rotating shaft (38) is movably connected through the surface of the guide plate (39). A transmission worm (390) is connected to the surface of the rotating shaft (38). A worm wheel (36) is meshed with one end of the transmission worm (390). A connecting shaft (37) is fixedly connected to one end of the worm wheel (36). A venetian blind (32) is fixedly connected to one end of the connecting shaft (37).

2. The COB light strip with adjustable light intensity according to claim 1, characterized in that: The mounting frame (31) is provided with a limiting mechanism for the rotation angle of the venetian blind (32) on the side opposite to the transmission worm gear (390). The limiting mechanism includes a limiting post (396), a limiting post (396), and a mounting shaft (391). The limiting plate (392) is rotatably connected to the side wall of the window housing (1) and connected to the end of the L-shaped part (21) of the venetian blind. The limiting plate (392) is provided with an arc-shaped limiting groove (393). The limiting post (396) is embedded in the limiting groove (393) and fixedly connected to the side wall of the window housing (1). The mounting shaft (391) is installed on one side of the limiting plate (392).

3. The COB light strip with adjustable light intensity according to claim 2, characterized in that: The central angle of the limiting groove (393) is 180°. Both ends of the limiting groove (393) are provided with buffer springs (394), and the ends of the buffer springs (394) are provided with buffer plates (395) that are slidably connected in the limiting groove (393).

4. The COB light strip with adjustable light intensity according to claim 3, characterized in that: The limiting groove (393) is provided with a guide groove (397), and a guide block (398) is fixed on the buffer plate (395) and slidably connected to the guide groove (397).

5. The COB light strip with adjustable light intensity according to claim 1, characterized in that: The adjustable COB light strip mechanism (2) includes an adjustable COB light strip main board (20) and an upper fin (23). The adjustable COB light strip main board (20) is fixedly connected to the inside of the housing (1). The upper fin (23) and the adjustable COB light strip main board (20) are riveted together. The lower ends of the upper fin (23) are provided with L-shaped portions (21) on both sides. The bottom of the adjustable COB light strip main board (20) is provided with a concave buckle (22).

6. The COB light strip with adjustable light intensity according to claim 5, characterized in that: The adjustable COB light strip mechanism (2) further includes a fin buckle (24) to separate and fix the heat sinks of the upper fin (23) together. The concave buckle (22) has one or more protrusions on each side and one or more grooves corresponding to the protrusions on each side of the upper fin (23). The protrusions and grooves are embedded together to make the connection between the upper fin (23) and the concave buckle (22) more stable.

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