An LED filament bulb integrating white light and color light

Abstract

The present invention relates to an LED filament bulb integrating white light and color light. A white light emitting module and a color light emitting module are simultaneously arranged in the LED filament bulb, and the switching of the working mode of the white light emitting module and the switching of the working mode of the color light emitting module are realized through a working mode switching module. Therefore, the LED filament bulb can realize the dimming and color adjustment of the bulb and the free switching function of different colors at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of light bulbs, and in particular to an LED filament light bulb integrating white light and color light. Background Art

[0002] LED bulbs are green, environmentally friendly, efficient, widely used, and can be used in many occasions. They are highly replaceable with traditional bulbs, so many LED bulb implementation solutions have been derived. As the requirements for energy conservation and environmental protection are further improved, combined with wireless communication, sensors and other technologies, smart LED bulbs are born. At the same time, higher requirements are put forward for lighting. It is not just simple monochrome lighting. It is necessary to realize the free switching of multiple color temperatures of the same lamp to meet different life or work needs, and to realize the switching of different colors to meet the atmosphere needs of different occasions, making the bulbs more functional and smarter. The LED filament bulbs currently on the market use cold and warm LED filaments plus a working mode switching module to dim the bulbs and adjust the color temperature. They cannot meet people's requirements for the function of switching different colors of bulbs, which greatly reduces the demand for the use of LED filament bulbs. Summary of the invention

[0003] The purpose of the present invention is to provide an LED filament bulb that integrates white light and colored light, so as to realize the functions of dimming and color adjustment of the bulb and free switching of different colors at the same time.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] An LED filament bulb integrating white light and color light, the bulb comprising: a white light emitting module, a color light emitting module, a working mode switching module and a shell;

[0006] The white light emitting module, the color light emitting module and the working mode switching module are all arranged inside the housing;

[0007] The control end of the white light emitting module is connected to the working mode switching module, and the working mode switching module is used to switch the working mode of the white light emitting module;

[0008] The control end of the color light emitting module is connected to the working mode switching module, and the working mode switching module is also used to switch the working mode of the color light emitting module.

[0009] Optionally, the housing comprises: a light-transmitting lampshade, a lamp cup and a lamp holder;

[0010] The lamp holder, the lamp cup and the light-transmitting lampshade are connected in sequence to form a closed cavity; the white light emitting module, the color light emitting module and the working mode switching module are all arranged inside the cavity.

[0011] Optionally, the color light emitting module includes: a light guide column, a light guide column sleeve, an RGB light board and RGB lamp beads;

[0012] The RGB light board is fixed to the light cup by screws, and the RGB light beads are set on the RGB light board;

[0013] One end of the light guide column is arranged on the RGB lamp bead, and the other end of the light guide column is located in the light-transmitting lampshade; the light guide column sleeve is arranged on the light guide column and the RGB lamp bead, one end of the light guide column sleeve is connected to the RGB lamp board, and the length of the light guide column sleeve is less than the length of the light guide column;

[0014] The RGB lamp beads are connected to the working mode switching module through the RGB lamp board, and the RGB lamp beads are used to switch the color of the colored light under the control of the working mode switching module.

[0015] Optionally, the white light emitting module comprises: a top PCB, a bottom PCB and a plurality of LED white light filaments;

[0016] The bottom PCB is located above the RGB light board, and the bottom PCB and the RGB light board are fixed to the lamp cup by the screws; the top PCB and a plurality of LED white light filaments are located in the light-transmitting lampshade; and the plurality of LED white light filaments are arranged between the top PCB and the bottom PCB;

[0017] The top PCB and the bottom PCB are both hollow disc structures, and the inner diameter of the top PCB is smaller than that of the bottom PCB; the light guide column passes through the hollow circle of the bottom PCB and the hollow circle of the top PCB in sequence; the other end of the light guide column sleeve passes through the hollow circle of the bottom PCB and is connected to the top PCB;

[0018] Wiring is arranged on the top PCB and the bottom PCB, and the two electrical connection ends of each LED white light filament are respectively welded and connected to the wiring pins on the outer edge of the top PCB and the wiring pins on the outer edge of the bottom PCB; the control ends of the wiring on the top PCB and the bottom PCB are connected to the working mode switching module.

[0019] Optionally, a plurality of LED white light filaments are connected in a series-parallel manner, and the series-parallel manner is a combination manner in a series-parallel combination matrix.

[0020] Optionally, the plurality of LED white light filaments have two or more color temperature types.

[0021] Optionally, a plurality of first circular holes are set on the bottom PCB, and a plurality of second circular holes are set on the RGB light board, and the second circular holes and the first circular holes are set in one-to-one correspondence; each screw passes through the corresponding first circular hole and the second circular hole in turn to fix the bottom PCB and the RGB light board to the lamp cup.

[0022] Optionally, the light bulb further includes: a wireless communication module;

[0023] The wireless communication module is arranged on the working mode switching module;

[0024] The wireless communication module is connected to the working mode switching module.

[0025] Optionally, the wireless communication module is a Bluetooth module or a WiFi module.

[0026] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0027] The present invention provides an LED filament bulb that integrates white light and colored light. A white light emitting module and a colored light emitting module are simultaneously arranged in the LED filament bulb, and the switching of the working mode of the white light emitting module and the switching of the working mode of the colored light emitting module are realized through a working mode switching module. Therefore, the LED filament bulb can realize the dimming and color adjustment of the bulb and the free switching function of different colors at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 An exploded diagram of an LED filament bulb that integrates white light and color light provided by the present invention;

[0030] Figure 2 An assembly diagram of an LED filament bulb that integrates white light and color light provided by the present invention;

[0031] Figure 3 A schematic diagram of a white light emitting module provided by the present invention;

[0032] Figure 4 A light emitting principle diagram of the color light emitting module provided by the present invention;

[0033] Figure 5 The light emitting principle diagram of the white light emitting module provided by the present invention

[0034] Explanation of symbols: 1-lamp cover, 2-light guide column, 3-top PCB, 4-LED white light filament, 5-screw, 6-bottom PCB, 7-light guide column sleeve, 8-RGB light board, 9-lamp cup, 10-working mode switching module, 11-lamp head. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The purpose of the present invention is to provide an LED filament bulb that integrates white light and colored light, so as to realize the functions of dimming and color adjustment of the bulb and free switching of different colors at the same time.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] In view of the disadvantage that the existing LED filament bulbs only have the function of dimming and color adjustment and cannot meet the client's free switching of various colors, in order to realize that the LED filament bulb has more functions and is easy to assemble, and meets the client's more application scenarios and usage needs, the present invention provides an LED filament bulb that integrates white light and color light, such as Figure 1-2 As shown, the light bulb includes: a white light emitting module, a color light emitting module, a working mode switching module 10 and a shell.

[0039] The white light emitting module, the color light emitting module and the working mode switching module 10 are all arranged inside the housing.

[0040] The control end of the white light emitting module is connected to the working mode switching module 10, and the working mode switching module 10 is used to switch the working mode of the white light emitting module; the working mode of the white light emitting module is different color temperature or different brightness.

[0041] The control end of the color light emitting module is connected to the working mode switching module 10, and the working mode switching module 10 is also used to switch the working mode of the color light emitting module. The working mode of the color light emitting module is different colors of color light.

[0042] The color temperature adjustment, brightness adjustment and color switching of white light are all prior art. The principle of color temperature, brightness adjustment and color switching is as follows: the working mode switching module 10 includes a microcontroller and a constant current driver. The microcontroller receives external instructions for color temperature, brightness or color. The microcontroller outputs a PWM control signal according to the instruction. The constant current driver outputs according to the PWM control signal to achieve color temperature or brightness adjustment or color switching. The microcontroller is a 51 core microcontroller.

[0043] The circuit of the working mode switching module 10 adopts two outputs, one for controlling white light and the other for controlling colored light, which are independent of each other.

[0044] The housing includes: a translucent lampshade 1, a lamp cup 9 and a lamp holder 11. The lamp holder 11, the lamp cup 9 and the translucent lampshade 1 are connected in sequence to form a closed cavity; the white light emitting module, the color light emitting module and the working mode switching module 10 are all arranged inside the cavity. The lampshade 1, the lamp cup 9 and the lamp holder 11 form a conventional light bulb shape, the lampshade 1 and the lamp cup 9 are connected by gluing, and the lamp holder 11 and the lamp cup 9 are clamped on the lamp cup 9 by pressing points.

[0045] The color light emitting module includes: a light guide column 2, a light guide column sleeve 7, an RGB lamp board 8 and RGB lamp beads. The RGB lamp board 8 is fixed to the lamp cup 9 by screws 5, and the RGB lamp beads are arranged on the RGB lamp board 8; one end of the light guide column 2 is arranged on the RGB lamp beads, and the other end of the light guide column 2 is located in the light-transmitting lampshade 1; the light guide column sleeve 7 is arranged on the light guide column 2 and the RGB lamp beads (that is, the light guide column 2 is stuck in the light guide column sleeve 7 to press the RGB lamp bead lamp board), one end of the light guide column sleeve 7 is connected to the RGB lamp board 8, and the length of the light guide column sleeve 7 is less than the length of the light guide column 2; the RGB lamp beads are connected to the working mode switching module 10 through the RGB lamp board 8, and the RGB lamp beads are used to switch the color of the color light under the control of the working mode switching module 10.

[0046] The light guide column 2 is made of a light guide material PU light guide strip, which can efficiently and quickly guide the light emitted by the RGB lamp beads to the top and provide the required color light. The light guide column sleeve 7 can block the light in the middle part of 2, ensuring that the light emitted by 8 can be guided to the top as much as possible, and also prevent the light in the middle part from leaking out and hitting 4 to form a shadow, affecting the uniformity of the light of the bulb.

[0047] Reference Figure 3 , the white light emitting module includes: a top PCB3, a bottom PCB6 and a plurality of LED white light filaments. The bottom PCB6 is located above the RGB light board 8, and the bottom PCB6 and the RGB light board 8 are fixed to the lamp cup 9 by screws 5; the top PCB3 and the plurality of LED white light filaments are located in the light-transmitting lampshade 1; the plurality of LED white light filaments are arranged between the top PCB3 and the bottom PCB6; the top PCB3 and the bottom PCB6 are both hollow disc structures, and the inner diameter of the top PCB3 is smaller than the inner diameter of the bottom PCB6; the light guide column 2 passes through the hollow circle of the bottom PCB6 and the hollow circle of the top PCB3 in sequence; the other end of the light guide column sleeve 7 passes through the hollow circle of the bottom PCB6 and is connected to the top PCB3; wiring is arranged on the top PCB3 and the bottom PCB6, and the two electrical connection ends of each LED white light filament 4 are respectively welded and connected to the wiring pins on the outer edge of the top PCB3 and the wiring pins on the outer edge of the bottom PCB6; the control end of the wiring on the top PCB3 and the bottom PCB6 is connected to the working mode switching module 10.

[0048] A plurality of first circular holes are set on the bottom PCB6, and a plurality of second circular holes are set on the RGB light board 8, and the second circular holes and the first circular holes are set in one-to-one correspondence; each screw 5 passes through the corresponding first circular hole and the second circular hole in turn to fix the bottom PCB6 and the RGB light board 8 to the lamp cup 9.

[0049] Multiple LED white light filaments are connected in series-parallel mode, which is a combination mode in the series-parallel combination matrix. The PCB routing design of the top PCB3 and the bottom PCB6 can realize multiple series-parallel modes. Changing the wiring of the upper and lower PCBs can make the filaments have different series-parallel modes, and all the series-parallel modes constitute a series-parallel combination matrix. For example, four filaments can be turned into 4 series and 1 parallel or 2 series and 2 parallel through the upper and lower PCB routing. This makes the overall solution design more liberal and easily realizes the selection of different series-parallel solutions for filaments.

[0050] The color temperature types of the plurality of LED white light filaments 4 are two or more.

[0051] The light bulb further includes: a wireless communication module. The wireless communication module is disposed on the working mode switching module 10 ; the wireless communication module is connected to the working mode switching module 10 .

[0052] The wireless communication module is a Bluetooth module or a WiFi module, and can also be other intelligent control modules to enable the client to simply control the working mode switching module 10 to achieve the purpose of making the light bulb intelligent.

[0053] The light bulb of the present invention can realize full-circle light (full-circle light is defined as the light emitting angle of the lamp is ≥270 ° ),like Figure 4 and 5 shown.

[0054] The present invention designs a smart light bulb with both dual-color dimming and color light control. The dual-color dimming uses cold and warm LED filaments to realize the free switching of the bulb color temperature from warm to cold through the control module, and the brightness can also be adjusted linearly from 0 to 100%; the color light is achieved through RGB patch lamp beads, which are installed at the bottom and reserve enough heat dissipation. The light is guided to the top through the material of the light guide material. The RGB lamp beads are connected to the control module to realize the free switching of various colors of the bulb.

[0055] The LED filament bulb of the present invention has more functions and is easy to assemble, and can meet more application scenarios and usage requirements of clients.

[0056] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0057] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An LED filament bulb integrating white light and color light, characterized in that: The light bulb comprises: a white light emitting module, a color light emitting module, a working mode switching module and a housing; The white light emitting module, the color light emitting module and the working mode switching module are all arranged inside the housing; The control end of the white light emitting module is connected to the working mode switching module, and the working mode switching module is used to switch the working mode of the white light emitting module; The control end of the color light emitting module is connected to the working mode switching module, and the working mode switching module is also used to switch the working mode of the color light emitting module; The housing comprises: a light-transmitting lampshade, a lamp cup and a lamp holder; The lamp holder, the lamp cup and the light-transmitting lampshade are connected in sequence to form a closed cavity; the white light emitting module, the color light emitting module and the working mode switching module are all arranged inside the cavity; The color light emitting module includes: a light guide column, a light guide column sleeve, an RGB light board and RGB lamp beads; The RGB light board is fixed to the light cup by screws, and the RGB light beads are set on the RGB light board; One end of the light guide column is arranged on the RGB lamp bead, and the other end of the light guide column is located in the light-transmitting lampshade; the light guide column sleeve is arranged on the light guide column and the RGB lamp bead, one end of the light guide column sleeve is connected to the RGB lamp board, and the length of the light guide column sleeve is less than the length of the light guide column; The RGB lamp beads are connected to the working mode switching module through the RGB lamp board, and the RGB lamp beads are used to switch the color of the colored light under the control of the working mode switching module; The white light emitting module comprises: a top PCB, a bottom PCB and a plurality of LED white light filaments; The bottom PCB is located above the RGB light board, and the bottom PCB and the RGB light board are fixed to the lamp cup by the screws; the top PCB and a plurality of LED white light filaments are located in the light-transmitting lampshade; and the plurality of LED white light filaments are arranged between the top PCB and the bottom PCB; The top PCB and the bottom PCB are both hollow disc structures, and the inner diameter of the top PCB is smaller than that of the bottom PCB; the light guide column passes through the hollow circle of the bottom PCB and the hollow circle of the top PCB in sequence; the other end of the light guide column sleeve passes through the hollow circle of the bottom PCB and is connected to the top PCB; Wiring is arranged on the top PCB and the bottom PCB, and the two electrical connection ends of each LED white light filament are respectively welded and connected to the wiring pins on the outer edge of the top PCB and the wiring pins on the outer edge of the bottom PCB; the control ends of the wiring on the top PCB and the bottom PCB are connected to the working mode switching module.

2. The LED filament bulb integrating white light and colored light according to claim 1, characterized in that: Multiple LED white light filaments are connected in series and parallel.

3. The LED filament bulb integrating white light and colored light according to claim 1, characterized in that: The plurality of LED white light filaments have two or more color temperature types.

4. The LED filament bulb integrating white light and colored light according to claim 1, characterized in that: A plurality of first circular holes are arranged on the bottom PCB, and a plurality of second circular holes are arranged on the RGB light board, and the second circular holes and the first circular holes are arranged in one-to-one correspondence; each screw passes through the corresponding first circular hole and the second circular hole in turn to fix the bottom PCB and the RGB light board to the light cup.

5. The LED filament bulb integrating white light and colored light according to claim 1, characterized in that: The light bulb further comprises: a wireless communication module; The wireless communication module is arranged on the working mode switching module; The wireless communication module is connected to the working mode switching module.

6. The LED filament bulb integrating white light and colored light according to claim 5, characterized in that: The wireless communication module is a Bluetooth module or a WiFi module.

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