A COB light strip and a lamp including the same

Abstract

The present invention discloses a COB light strip and a lamp including the COB light strip. The COB light strip includes: a flexible PCB, a plurality of monochrome chips, a plurality of RGB integrated chips, a plurality of resistors, and a packaging colloid; the flexible PCB is provided with a monochrome chip pad, an integrated chip pad, and a resistor pad; the monochrome chip is welded on the monochrome chip pad, the RGB integrated chip is welded on the integrated chip pad, and the resistor is welded on the resistor pad; the packaging colloid is coated on the flexible PCB, and the monochrome chip, the RGB integrated chip, and the resistor are sealed in the packaging colloid. The lamp includes the above-mentioned COB light strip and also includes a lamp body; the lamp body includes a lamp holder and a light-emitting module; the COB light strip is installed in the light-emitting module, and the lamp holder is used to provide power for the COB light strip. The present invention simplifies the structure and manufacturing process of the COB light strip, quickly and stably fixes the COB light strip on the lamp, and can adaptively adjust the light output angle.

Description

Technical Field

[0001] The present invention relates to the technical field of COB light strips, and in particular to a COB light strip and a lamp including the COB light strip. Background Art

[0002] COB is the abbreviation of Chip On Board, which is a packaging method that directly packages multiple LED chips on a metal-based printed circuit board.

[0003] COB light strips are waterproof, dustproof, moisture-proof, anti-static, and collision-resistant. They are widely used in large supermarkets, photo studios, subway stations, bus stops, airports, traffic control and command centers, hotels, bars, cinemas, KTVs, schools, large-scale commercial performances, conference venues, and high-end brand stores. COB products can offset some of the shortcomings of SMD LEDs, offering greater environmental adaptability, a lower pixel failure rate, and minimal ongoing maintenance costs. COB packaging effectively avoids the drawbacks of discrete light source components, such as spotlighting and glare. By incorporating the appropriate chip combination, color rendering can be significantly improved without compromising efficiency or lifespan.

[0004] Traditional COB packaging methods primarily utilize four independent chips (red, green, blue, and white) mounted on a flexible PCB. This requires four placement operations on the placement machine, resulting in a complex circuit layout. The subsequent extrusion of the colloid (applying it to the chips) requires specialized coloring, creating a complex process.

[0005] In addition, COB light strips are soft. When applying COB light strips to lighting products, how to quickly and stably fix the COB light strips and adaptively adjust the light output angle of the COB light strips according to the application scenario is also a technical problem that needs to be solved. Summary of the Invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a COB light strip and a lamp including the COB light strip, simplify the structure and manufacturing process of the COB light strip, quickly and stably fix the COB light strip on the lamp, and adaptively adjust the light output angle.

[0007] The object of the present invention is achieved through the following technical solutions:

[0008] A COB light strip, comprising: an infinitely extendable flexible PCB, a plurality of monochrome chips, a plurality of RGB integrated chips, a plurality of resistors, and a packaging colloid;

[0009] The infinitely extended flexible PCB has a plurality of single-color chip pads, integrated chip pads, and resistor pads;

[0010] The plurality of monochrome chips are soldered to the plurality of monochrome chip pads in a one-to-one correspondence, the plurality of RGB integrated chips are soldered to the plurality of integrated chip pads in a one-to-one correspondence, and the plurality of resistors are soldered to the plurality of resistor pads in a one-to-one correspondence;

[0011] The packaging colloid is coated on the flexible PCB, and a plurality of the single-color chips, a plurality of the RGB integrated chips and a plurality of the resistors are sealed in the packaging colloid.

[0012] In one embodiment, one of the monochrome chips and one of the RGB integrated chips form a group of light-emitting monomers, and a plurality of the light-emitting monomers are arranged in a straight line and are arranged in sequence along the extension line of the flexible PCB.

[0013] In one embodiment, the monochrome chip is a white light chip.

[0014] In one embodiment, each of the RGB integrated chips includes: an integrated box, a red chip, a green chip, and a blue chip; one of the red chip, one of the green chip, and one of the blue chip are housed in one of the integrated boxes;

[0015] The integrated box body has a light emitting surface, and the light emitting surface is coated with fluorescent powder.

[0016] In one embodiment, the packaging colloid is latex glue or transparent glue.

[0017] A lamp, comprising the above-mentioned COB light strip and a lamp body;

[0018] The lamp body includes a lamp holder and a light emitting module that is plug-in connected to the lamp holder;

[0019] The COB light strip is installed in the light emitting module, and the lamp holder is used to provide power for the COB light strip.

[0020] In one embodiment, the light emitting module includes: a light emitting sleeve, a fixed end cap, a rotating end cap, and a supporting and clamping assembly;

[0021] The luminous sleeve is a cavity structure with hollow ends. The fixed end cap is fixedly provided at one end of the luminous sleeve, and the rotating end cap is rotatably provided at the other end of the luminous sleeve.

[0022] The support clamping assembly includes: a support rod, a fixed clamping jaw, and a rotating clamping jaw; the support rod has a fixed end and a rotating end, the fixed end of the support rod is fixedly arranged on the fixed clamping jaw, and the rotating end of the support rod is rotatable and axially movable on the rotating clamping jaw; the two ends of the COB light strip are respectively clamped by the fixed clamping jaw and the rotating clamping jaw, and the COB light strip rests on the rod body of the support rod;

[0023] The fixed clamping claw has a plug-in terminal, which is inserted into the fixed end cover and connected to the plug-in slot of the lamp holder;

[0024] The rotating clamping jaw has a limiting guide column, and the limiting guide column is passed through the rotating end cover;

[0025] The rotating clamping claw is connected to the rotating end cover via a tension spring.

[0026] In one embodiment, the position-limiting guide column is a column structure with a hexagonal cross-section, and the rotating end cover is provided with a hexagonal through hole that cooperates with the position-limiting guide column.

[0027] In one embodiment, an annular groove is formed on the lamp holder, and the fixed end cover has an annular flange. The annular flange is received in the annular groove, and the annular flange and the annular groove are interference fit.

[0028] In one embodiment, the lamp holder is provided with a handle.

[0029] The COB light strip and the lamp including the COB light strip of the present invention simplify the structure and manufacturing process of the COB light strip, quickly and stably fix the COB light strip on the lamp, and can adaptively adjust the light output angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a front view of a COB light strip according to an embodiment of the present invention;

[0032] Figure 2 for Figure 1 Bottom view of the COB light strip shown;

[0033] Figure 3 for Figure 1Left view of the COB light strip shown;

[0034] Figure 4 for Figure 1 The exploded view of the COB light strip shown;

[0035] Figure 5 for Figure 4 A partial view of the COB light strip shown;

[0036] Figure 6 for Figure 5 The structural diagram of the RGB integrated chip shown;

[0037] Figure 7 is an assembly diagram of a lamp body according to an embodiment of the present invention;

[0038] Figure 8 for Figure 7 The exploded view of the lamp body shown;

[0039] Figure 9 for Figure 8 An exploded view of the light emitting module of the lamp body shown;

[0040] Figure 10 for Figure 9 The structural diagram of the support clamping assembly shown;

[0041] Figure 11 for Figure 10 An exploded view of the support clamp assembly is shown;

[0042] Figure 12 for Figure 9 A structural diagram of the rotating end cover supporting the clamping assembly shown;

[0043] Figure 13 for Figure 9 A structural diagram of the fixed end cover of the support clamping assembly shown;

[0044] Figure 14 This is an exploded view of a COB light strip according to another embodiment of the present invention;

[0045] Figure 15 for Figure 14 A partial view of the COB light strip shown. DETAILED DESCRIPTION

[0046] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the present invention discloses a COB light strip 10, which includes: an infinitely extendable flexible PCB 11, multiple monochrome chips 12, multiple RGB integrated chips 13, multiple resistors 14, and a packaging colloid 15. In other embodiments, the above-mentioned RGB integrated chip 13 can also be replaced with an RGBW chip, an RGBCW chip, or a colorful chip. Among them, the RGBW chip includes one RGB color light and one white light, the RGBCW chip includes one RGB color light and two white lights, and the colorful chip includes one RGB color light and an IC (the parameters of the RGB color light can be freely changed through IC control, thereby making the color light varied).

[0050] like Figure 5 As shown, the infinitely extended flexible PCB 11 has a plurality of single-color chip pads 16 , integrated chip pads 17 , and resistor pads 18 .

[0051] The monochrome chips 12 are soldered to the monochrome chip pads 16 in a one-to-one correspondence, the RGB integrated chips 13 are soldered to the integrated chip pads 17 in a one-to-one correspondence, and the resistors 14 are soldered to the resistor pads 18 in a one-to-one correspondence.

[0052] The packaging colloid 15 is coated on the flexible PCB 11 , and the plurality of single-color chips 12 , the plurality of RGB integrated chips 13 and the plurality of resistors 14 are sealed in the packaging colloid 15 .

[0053] In this embodiment, a single-color chip 12 and an RGB integrated chip 13 form a group of light-emitting monomers. The light-emitting monomers are arranged in a straight line and are arranged in sequence along the extension line of the flexible PCB 11 .

[0054] In this embodiment, the monochrome chip 12 is a white light chip.

[0055] like Figure 6 As shown, in this embodiment, each RGB integrated chip 13 includes an integrated housing 19, a red chip, a green chip, and a blue chip. Each red chip, green chip, and blue chip are housed within the integrated housing 19. The integrated housing 19 has a light-emitting surface 19a coated with phosphor.

[0056] In this embodiment, the packaging colloid 15 is latex glue or transparent glue.

[0057] The COB light strip 10 of the present invention has the following characteristics:

[0058] 1. A red chip, a green chip, and a blue chip are integrated into an integrated box 19 to obtain an RGB integrated chip 13. The RGB integrated chip 13 and the monochrome chip 12 are then mounted on the integrated chip pad 17 and the monochrome chip pad 16, respectively. This reduces the number of placements on the placement machine and simplifies the circuit layout.

[0059] 2. Instead of performing a special toner operation on the colloid in the traditional process, it is only necessary to coat the phosphor on the light-emitting surface 19a of the integrated box 19 of a single RGB integrated chip 13. In this way, the packaging colloid 15 only needs to be made of latex glue or transparent glue, which is simpler in production process.

[0060] like Figure 7 and Figure 8 As shown, the present invention further discloses a lamp, which includes the above-mentioned COB light strip 10 and a lamp body 30.

[0061] like Figure 7 and Figure 8 As shown, the lamp body 30 includes a lamp holder 40 and a light emitting module 50 that forms a plug-in connection with the lamp holder 40 .

[0062] The COB light strip 10 is installed in the light emitting module 50 , and the lamp holder 40 is used to provide power to the COB light strip 10 .

[0063] like Figure 9 As shown, specifically, the light emitting module 50 includes: a light emitting sleeve 100 , a fixed end cover 200 , a rotating end cover 300 , and a supporting and clamping assembly 400 .

[0064] The luminous sleeve 100 is a cavity structure with hollow ends. The fixed end cap 200 is fixedly disposed on one end of the luminous sleeve 100 , and the rotatable end cap 300 is rotatably disposed on the other end of the luminous sleeve 100 .

[0065] like Figure 10 As shown, the support clamping assembly 400 includes: a support rod 410, a fixed clamping jaw 420, and a rotating clamping jaw 430. Figure 11 As shown, the support rod 410 has a fixed end 411 and a rotating end 412. The fixed end 411 of the support rod 410 is fixedly mounted on the fixed clamp 420, while the rotating end 412 of the support rod 410 is rotatably and axially movable on the rotating clamp 430. The two ends of the COB light strip 10 are clamped by the fixed clamp 420 and the rotating clamp 430, respectively, and the COB light strip 10 rests on the rod body of the support rod 410.

[0066] like Figure 11 As shown, the fixed clamping claw 420 has a plug-in terminal 421, which is provided through the fixed end cover 200 and is connected to the plug-in slot 41 of the lamp holder 40 (as shown in FIG. Figure 8 Plug and unplug connections.

[0067] like Figure 11 As shown, the rotating clamp 430 has a limiting guide column 431, which is provided through the rotating end cover 300. Specifically, the limiting guide column 431 is a column structure with a hexagonal cross section, and the rotating end cover 300 is provided with a hexagonal through hole 310 (as shown in FIG. Figure 12 shown).

[0068] The rotating clamp 430 and the rotating end cover 300 are connected by a tension spring 500 (such as Figure 11 as shown) connection.

[0069] The following describes the installation method of the above-mentioned lamps:

[0070] Since the COB light strip 10 is very flexible, on the one hand, the COB light strip 10 needs to be quickly and smoothly passed through the light-emitting sleeve 100, and on the other hand, the COB light strip 10 needs to be fixed. For this purpose, a support clamping assembly 400 is specially provided. First, the two ends of the COB light strip 10 are clamped and fixed by using the fixed clamping jaw 420 and the rotating clamping jaw 430 respectively. Then, the fixed end 411 and the rotating end 412 of the support rod 410 are connected to the fixed clamping jaw 420 and the rotating clamping jaw 430 respectively. In this way, the support rod 410 can support the entire COB light strip 10 through the fixed clamping jaw 420 and the rotating clamping jaw 430. At this time, the fixed end 411 of the support rod 410 is fixed on the fixed clamping jaw 420, while the rotating end 412 of the support rod 410 is rotatably and axially movable on the rotating clamping jaw 430.

[0071] The support and clamping assembly 400 with the COB light strip 10 installed is passed through the light-emitting sleeve 100. Under the action of the support and clamping assembly 400, the flexible COB light strip 10 can pass through the light-emitting sleeve 100 very smoothly and quickly;

[0072] Take the fixed end cap 200 and fix it to one end of the light-emitting sleeve 100. At this time, the plug-in terminal 421 of the fixed clamping claw 420 will be inserted into the fixed end cap 200 (the fixed end cap 200 has a corresponding opening);

[0073] Take the rotating end cover 300 so that the limiting guide post 431 of the rotating clamping jaw 430 is inserted into the rotating end cover 300 (the rotating end cover 300 is provided with a hexagonal through hole 310 that cooperates with the limiting guide post 431). At the same time, the tension spring 500 is used to realize the elastic connection between the rotating clamping jaw 430 and the rotating end cover 300.

[0074] At this point, the COB light strip 10 can be installed in the light emitting module 50;

[0075] Then, since the plug-in terminal 421 of the fixed clamp 420 is exposed outside the fixed end cover 200, the plug-in terminal 421 of the fixed clamp 420 can be directly plugged into the plug-in slot 41 of the lamp holder 40. The plug-in slot 41 is energized, and the electricity is transmitted to the COB light strip 10 through the plug-in terminal 421, thereby realizing the lighting of the COB light strip 10.

[0076] In addition, the lamp holder 40 is provided with an annular groove 42 (such as Figure 8 As shown), the fixed end cover 200 has an annular flange 210 (as shown Figure 13 As shown in FIG, the annular flange 210 is received in the annular groove 42, and the annular flange 210 and the annular groove 42 are interference-fitted. In this way, the entire light emitting module 50 can be connected to the lamp holder 40 very stably.

[0077] The lamp holder 40 can be placed directly on a flat surface. In addition, the lamp holder 40 is provided with a handle 43 (such as Figure 8 As shown), the handle 43 can also be used to hang the entire lamp at a high place.

[0078] The lamp with the above structure can achieve adjustment of multiple lighting angles: in one state, the COB light strip 10 in the lamp is in a straight and flat state, and the light emitted by the COB light strip 10 is emitted through the light-emitting sleeve 100, which can illuminate the surrounding area at an angle of 180 degrees; in another state, the COB light strip 10 in the lamp is in a spirally twisted state, and the light emitted by the COB light strip 10 is emitted through the light-emitting sleeve 100, which can illuminate the surrounding area at an angle of 360 degrees.

[0079] How to adjust the COB light strip 10 from a straight flat state to a spiral twisted state is explained as follows:

[0080] The rotating end cover 300 is rotated so that the rotating end cover 300 rotates an angle, and the rotating end cover 300 then drives the rotating claw 430 to rotate. Since the rotating end 412 of the support rod 410 is rotatable and axially movable on the rotating claw 430, the rotating claw 430 does not drive the support rod 410 to rotate. The rotating claw 430 only drives one end of the COB light strip 10 clamped thereon to rotate, and the other end of the COB light strip 10 is fixed on the fixed claw 420. Therefore, the COB light strip 10 can be adjusted from a straight and flat state to a spirally twisted state. Since the COB light strip 10 has been adjusted to the spirally twisted state, the entire COB light strip 10 can emit light 360 degrees, thereby illuminating the surrounding area.

[0081] Similarly, by rotating the end cap 300 in the opposite direction, the COB light strip 10 can be restored from the spiral twisted state to the straight and flat state.

[0082] Here, it should be noted that in the process of adjusting the COB light strip 10 from a straight and flat state to a spirally twisted state, due to the twisting of the COB light strip 10, its total length will be reduced accordingly. In order to adapt to the change in the total length of the COB light strip 10, the rotating jaw 430 will also move adaptively, and the limiting guide column 431 on the rotating jaw 430 plays a role of limiting and guiding. The entire limiting guide column 431 will move axially along the through hole on the rotating end cover 300 without rotating itself.

[0083] In addition, it should be noted that the rotating clamping claw 430 is connected to the rotating end cover 300 through a tension spring 500. By setting the tension spring 500, one end of the entire support clamping assembly 400 is tightened, and the entire support clamping assembly 400 is fixed in a flexible manner to adapt to the telescopic movement of each mechanism of the COB light strip 10 during the change between the two states.

[0084] It should be further explained that the support rod 410 cooperates with the fixed clamp 420 and the rotating clamp 430 to support the COB light strip 10. On the one hand, it allows the COB light strip 10 to pass through the light-emitting sleeve 100 quickly and smoothly. On the other hand, it allows the COB light strip 10 to rest on the rod body of the support rod 410 regardless of whether it is flat or twisted, so as to improve stability.

[0085] like Figure 14 and Figure 15As shown, the present invention also discloses another embodiment of a COB light strip 20, which includes: an infinitely extended flexible PCB 21, a plurality of RGB integrated chips 22, a plurality of resistors 23, and a packaging colloid 24. The infinitely extended flexible PCB 21 has a plurality of integrated chip pads 25 and resistor pads 26.

[0086] The plurality of RGB integrated chips 22 are soldered to the plurality of integrated chip pads 25 in a one-to-one correspondence, and the plurality of resistors 23 are soldered to the plurality of resistor pads 26 in a one-to-one correspondence.

[0087] The packaging colloid 24 is coated on the flexible PCB 21 , and a plurality of RGB integrated chips 22 and a plurality of resistors 23 are sealed in the packaging colloid 24 .

[0088] The main difference between the COB light strip 20 of this embodiment and the aforementioned COB light strip 10 is that the single-color chip is eliminated.

[0089] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A lamp, characterized in that: Including COB light strip and lamp body; The COB light strip includes: an infinitely extended flexible PCB, a plurality of monochrome chips, a plurality of RGB integrated chips, a plurality of resistors, and a packaging colloid; the infinitely extended flexible PCB is provided with a plurality of monochrome chip pads, integrated chip pads, and resistor pads; the plurality of monochrome chips are respectively soldered to the plurality of monochrome chip pads in a one-to-one correspondence, the plurality of RGB integrated chips are respectively soldered to the plurality of integrated chip pads in a one-to-one correspondence, and the plurality of resistors are respectively soldered to the plurality of resistor pads in a one-to-one correspondence; the packaging colloid is coated on the flexible PCB, and the plurality of monochrome chips, the plurality of RGB integrated chips, and the plurality of resistors are sealed in the packaging colloid; The lamp body includes a lamp holder and a light-emitting module that forms a plug-in connection with the lamp holder; the COB light strip is installed in the light-emitting module, and the lamp holder is used to provide power for the COB light strip; The light-emitting module includes: a light-emitting sleeve, a fixed end cover, a rotating end cover, and a support and clamping assembly; the light-emitting sleeve is a cavity structure with hollow ends, the fixed end cover is fixedly provided at one end of the light-emitting sleeve, and the rotating end cover is rotatably provided at the other end of the light-emitting sleeve; the support and clamping assembly includes: a support rod, a fixed clamping claw, and a rotating clamping claw; the support rod has a fixed end and a rotating end, the fixed end of the support rod is fixedly provided on the fixed clamping claw, and the rotating end of the support rod is rotatable and axially movable on the rotating clamping claw; the two ends of the COB light strip are respectively clamped by the fixed clamping claw and the rotating clamping claw, and the COB light strip rests on the rod body of the support rod; the fixed clamping claw has a plug-in terminal, which is passed through the fixed end cover and is plugged and connected to the plug-in slot of the lamp holder; the rotating clamping claw has a limiting guide column, which is passed through the rotating end cover; the rotating clamping claw and the rotating end cover are connected by a tension spring.

2. The lamp according to claim 1, characterized in that The position-limiting guide column is a column structure with a hexagonal cross-street surface, and the rotating end cover is provided with a hexagonal through hole that cooperates with the position-limiting guide column.

3. The lamp according to claim 1, characterized in that An annular groove is formed on the lamp holder, and the fixed end cover has an annular flange. The annular flange is received in the annular groove, and the annular flange and the annular groove are interference-fitted.

4. The lamp according to claim 1, characterized in that A handle is provided on the lamp holder.

Images