LED lamp
By designing the folding surface light source plate and color light chip arrangement in the LED lamp, the light unevenness and color unevenness of the small diameter lamp type of milky white bubbles is solved, and the uniform light output effect is achieved, and the heat dissipation ability is improved through thermal gas.
Patent Information
- Application Number
- CN202421556142.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-03
AI Technical Summary
In the prior art, the small diameter lamp type of milky white bubbles has problems such as uneven white light, RGB color light color separation phenomenon, uneven color mixing, and dark areas on the top, and the complex winding process of flexible RGBTW light sources is relatively stable.
A light source plate composed of a folding surface is equipped with a boss at the top and/or bottom, and a prism in the middle is to ensure that the ratio of the diameter of the incised circle to the inner diameter of the bubble shell is above 1.5, and a reasonable light refractive distance and color mixing effect are achieved. Color light chips are arranged on the light source sheet, and the color of the color light chip gradually changes to ensure uniform spectral color mixing.
Through reasonable color light chip arrangement and light source board design, the uniform light emission and color mixing of RGB light sources are achieved, which avoids dark areas problems, improves the light output effect, and improves the heat dissipation ability of LED lamps through thermally conductive gas.
Smart Images
Figure CN222836699U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lamps, and in particular relates to an LED lamp. Background Art
[0002] The demand for decorative lamps is becoming more and more diversified. In addition to satisfying the decorative effect, they must also satisfy the main lighting function. For smart products, the early demand for RGB smart decorative lamps was mainly transparent. However, when the small-diameter lamp type of milky white bulbs is replaced, serious problems such as uneven white light, RGB color separation, uneven color mixing, and dark areas on the top will occur. For bulbs with small diameters and high lengths, the solution of light source board plus light guide column can be used to achieve uniformity of the bulb shell, but the cost of the light guide column is high and when the bulb is sealed at high temperature, the light source board is too close to the core column, which may cause the light source to fall off the light source board. At the same time, when the diameter of the bulb shell is constant, the larger the diameter of the light source board inside the bulb shell, the closer it is to the bulb shell, which will cause the refraction path of the light or the distance of multi-color mixing to be too short, and the color cannot be effectively and fully mixed, resulting in uneven overall color mixing and poor light output effect. In addition, the flexible RGBTW light source used on the market is relatively wide, and the light source is wrapped in a spiral shape. If the diameter is too large, the light source will be imaged on the bulb shell, and the winding method of the soft light source is complex, and the process stability is low. The common LED light source on the market is a Lambertian light source with a light-emitting angle of 120°. The energy of the light source is a Gaussian distribution with high energy in the middle and low energy on both sides. When the ratio of the light source arrangement spacing to the distance from the light source to the bulb shell is too large, the light source will form a light spot with alternating light and dark on the bulb shell, which is the granular feeling of the lamp beads described in daily life. Utility Model Content
[0003] In order to solve the above problems existing in the prior art, the present application provides an LED lamp based on a light source board in combination with an RGB light source to overcome the above deficiencies existing in the prior art.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] An LED lamp comprises: a bulb and a light source board, wherein the light source board is located in the bulb, the light source board is composed of a plurality of folded surfaces, a boss or a plane is arranged on the top and / or the bottom of the light source board, the boss can make up for the light at the top and / or the bottom, and solve the problem of dark areas at both ends, the middle part of the light source board is a prism, the ratio of the inner diameter of the bulb to the diameter of the inscribed circle of the light source board is greater than 1.5, so as to ensure that when equipped with bulbs of different sizes, there is still a reasonable light refraction distance, to achieve effective and sufficient color mixing, to optimize the light output effect, and to avoid the light source board from causing the light source board to cause ... The distance to the bulb shell is too short, resulting in uneven overall color mixing. Each folding surface of the light source board is arranged with a light source sheet. There are several color light chips on the light source sheet arranged on the same horizontal line, and the color of the first color light chip close to the edge of the folding surface is different from the color of the color light chip closest to the adjacent folding surface. The light energy in the circumferential direction of the light source board can ensure consistent spacing, so that the spectral color mixing in the circumferential direction is uniform, avoiding the same color light chips gathering in the same position, causing the same color light to deviate to the same side, resulting in uneven light panels and uneven color light intensity.
[0006] Preferably, it also includes a stem, a driving member, a lamp holder and a thumbtack, the light source panel is mounted on the stem, the stem is fixed to the bottom of the bulb, the stem is connected to the driving member, the driving member is located in the lamp holder, the lamp holder is located under the bulb, and the thumbtack is mounted on the bottom of the lamp holder.
[0007] Preferably, the folding surface in the middle of the light source panel is a plurality of rectangles, and the number of the rectangles is more than 3.
[0008] Further preferably, the number of the rectangles ranges from 5 to 7.
[0009] Further preferably, the number of the light source pieces on a single rectangle is more than 3, and the number of the light source pieces on a single folding surface forming a boss on the light source board is more than 1.
[0010] Further preferably, the vertical spacing between the light source pieces on the rectangle is in the range of 1 to 30 mm, and the specific spacing is adjusted according to the number of light source pieces on the rectangle.
[0011] Preferably, a circuit layer is arranged on the light source board, and a plurality of input connection pads are arranged at the bottom of the light source board for connecting the core column guide wire.
[0012] Preferably, the light source sheet is composed of all-in-one or discrete color light chips, and the all-in-one combination is RGB or RGGB or RBBG or RGBY.
[0013] Further preferably, the packaging structure of the all-in-one light source sheet is a single cup or multiple cups, and the packaging size may be: 3030 / 2835 / 5050 / 4830 / 3838 / 1616, etc.
[0014] Further preferably, the wavelength range of the all-in-one colored light is: B: 420-490nm, G: 500-550nm, R: 600-660nm, Y: 530-600nm, wherein G, R, and Y can be directly produced by pure LED chips or by blue light chips covered with phosphors.
[0015] Preferably, the spectral color points of the multiple primary colors determine the spectral range that can be mixed, and the white light or color light spectrum at a certain point is generated by mixing 3 or 4 color light spectra in a certain proportion.
[0016] Preferably, the light source board is made of an aluminum substrate or a glass fiber board. The light source board is formed into a plane, pre-cut on the plane according to the folded shape, and then folded into a light source board shape that adapts to the bulb and lighting effect.
[0017] Preferably, the enclosed space between the bulb shell and the lamp holder is filled with a gas with high thermal conductivity, such as an inert gas or a mixed gas of an inert gas and oxygen, so as to enhance the heat dissipation capacity of the LED lamp.
[0018] Further preferably, the inert gas may be helium.
[0019] Compared with the prior art, the beneficial results of the utility model are:
[0020] The utility model provides an LED lamp, which is based on a light source board with an RGB light source, and through reasonable arrangement of color light chips, reduces the diameter of the inscribed circle of the light source board to improve the color mixing distance, and arranges a boss on the top of the light source board to improve the uniformity of the RGB light source's light emission and light mixing, and white light is mixed by RGB, eliminating the need for a white light source, and a bulb shell is filled with a gas with high thermal conductivity, thereby improving the heat dissipation capacity of the LED lamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the utility model. It will be easy to recognize other embodiments and many expected advantages of the embodiments because they become better understood by reference to the following detailed description. Other features, objects and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments made with reference to the following drawings:
[0022] Figure 1 is an exploded view according to a specific embodiment of the utility model;
[0023] Figure 2 is a schematic diagram of a planar light source panel according to a specific embodiment of the utility model;
[0024] Figure 3 is a structural schematic diagram of a light source board according to a specific embodiment of the utility model;
[0025] Figure 4 This is a schematic diagram of light distribution in which the top of a light source board is a plane according to a specific embodiment of the utility model;
[0026] Figure 5 This is an optical simulation diagram in which the top of the light source board is a plane according to a specific embodiment of the utility model;
[0027] Figure 6 This is a schematic diagram of light distribution in which the top of a light source board is a boss according to a specific embodiment of the utility model;
[0028] Figure 7 It is an optical simulation diagram of a light source board with a boss on the top according to a specific embodiment of the utility model.
[0029] The meaning of the numbers in the figure are: 1, bulb shell; 2, light source board; 21, boss; 22, light source sheet; 3, core column; 4, driving part; 5, lamp holder; 6, thumbtack. DETAILED DESCRIPTION
[0030] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present application can be practiced. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the components of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present application is defined by the appended claims.
[0031] To facilitate understanding by those skilled in the art, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
[0032] In a specific embodiment, Figure 1As shown, an exploded view of an LED lamp includes a bulb 1, a light source board 2, a stem 3, a driving member 4, a lamp holder 5 and a thumbtack 6, wherein the light source board 2 is located in the bulb 1, the ratio of the inner diameter of the bulb 1 to the diameter of the inscribed circle of the light source board 2 is 3, the light source board 2 is composed of a plurality of folding surfaces, a boss 21 is provided on the top of the light source board 2, the middle portion of the light source board 2 is a prism, and each folding surface of the light source board 2 is arranged with a light source sheet 22; the light source board 2 is mounted on the stem 3, the stem 3 is fixed to the bottom of the bulb 1, the stem 3 is connected to the driving member 4, the driving member 4 is located in the lamp holder 5, the lamp holder 5 is located under the bulb 1, and the thumbtack 6 is mounted on the bottom of the lamp holder 5.
[0033] In a specific embodiment, the schematic diagram of the light source panel in a planar state is as follows: Figure 2 As shown, it includes a light source board 2, each folding surface of the light source board 2 is arranged with a light source sheet 22, and the light source sheet 22 has a color light chip. The light source board 2 is composed of multiple folding surfaces. The light source board 2 is a plane when it is formed. It is pre-cut on the plane according to the shape after folding, and then folded into the shape of the light source board 2 that adapts to the bulb 1 and the lighting effect, as shown in FIG. Figure 2 As shown, the middle portion of the light source panel 2 can be folded into a prism, and the top portion of the light source panel 2 can be folded into a boss.
[0034] Optionally, three color light chips are arranged on the same horizontal line on the light source sheet 22, and the color of the first color light chip close to the edge of the folding surface is different from the color of the closest color light chip in the adjacent folding surface.
[0035] Optionally, the folding surface in the middle of the light source panel 2 is 5 rectangles.
[0036] Optionally, the number of the light source sheets 22 on a single rectangle is 3.
[0037] Optionally, the number of the light source sheet 22 on a single folding surface forming a boss on the light source board 2 is one.
[0038] Optionally, the light source sheet 22 is composed of an all-in-one color light chip, and the all-in-one combination is RGB.
[0039] Optionally, the wavelength range of the all-in-one colored light is: B: 420-490nm, G: 500-550nm, R: 600-660nm, Y: 530-600nm, wherein G, R, and Y can be directly produced by pure LED chips or by blue light chips covered with phosphors.
[0040] Optionally, the light source panel 2 is made of a soft aluminum substrate.
[0041] In a specific embodiment, Figure 3 The figure shows a schematic diagram of the structure of a light source board of an LED lamp, comprising a light source board 2, a core column 3, a lamp holder 4 and a thumbtack 6, wherein the light source board 2 is composed of a plurality of folded surfaces, a boss 21 is provided on the top of the light source board 2, the middle portion of the light source board 2 is a prism, and each folded surface of the light source board 2 is arranged with a light source sheet 22; the light source board 2 is installed on the core column 3, the core column 3 is located above the lamp holder 5, and the thumbtack 6 is installed at the bottom of the lamp holder 5.
[0042] Optionally, the number of the light source sheets 22 on a single rectangle is 3.
[0043] Optionally, the number of the light source sheet 22 on a single folding surface forming a boss on the light source board 2 is one.
[0044] In a specific embodiment, Figure 4 The figure shows a schematic diagram of light distribution when the top of the light source board is a plane, including a bulb 1, a core column 3, a lamp holder 4, a thumbtack 6 and a prismatic light source board 2 with a flat top, the ratio of the inner diameter of the bulb 1 to the diameter of the inscribed circle of the light source board 2 is 3, a light source sheet 22 is arranged on each folding surface of the light source board 2, the light source board 2 is mounted on the core column 3, the core column 3 is located above the lamp holder 5, and the thumbtack 6 is mounted on the bottom of the lamp holder 5. When the top of the light source board 2 is a plane, due to the small diameter of the inscribed circle of the light source board 2, the light from the light source on the plane cannot hit the R angle at the top of the bulb 1, resulting in a dark top of the bulb 1.
[0045] In a specific embodiment, Figure 6 The figure shows a schematic diagram of light distribution with a boss on the top of a light source board, comprising a bulb 1, a core column 3, a lamp holder 4, a thumbtack 6 and a prismatic light source board 2 with a boss 21 on the top. The ratio of the inner diameter of the bulb 1 to the diameter of the inscribed circle of the light source board 2 is 3. A light source sheet 22 is provided on each folding surface of the light source board 2. The light source board 2 is mounted on the core column 3, and the core column 3 is located above the lamp holder 5. The thumbtack 6 is mounted on the bottom of the lamp holder 5. By adjusting the included angle between the boss 21 and the bulb 1 in the vertical direction to a suitable angle, the problem of the dark R angle at the top of the bulb 1 can be improved.
[0046] Figure 5 Shown as Figure 4 Optical simulation diagram when the top of the light source board is set as a flat surface. Figure 7 Shown as Figure 4 Optical simulation diagram when the top of the light source board is set as a boss. Figure 7 The brightness of the top of the LED light is significantly stronger than Figure 5 The brightness of the top of the LED light is better, the overall brightness and uniformity are better, Figures 5 to 7It can be seen that the boss 21 provided on the top of the light source board 2 can make up for the light on the top of the LED lamp and solve the problem of the dark area on the top.
[0047] In other embodiments, in addition to setting a boss 21 or a plane on the top of the light source board 2 as described in the above embodiment, the light source board 2 has 5 rectangles in the middle, each rectangular folding surface is provided with 3 light source sheets 22, each folding surface on the boss 21 is provided with 1 light source sheet 22, and the all-in-one combination is RGB, bosses 21 can also be set at the top and bottom of the light source board 2, and there are more than 3 rectangles in the middle of the light source board 2, the number of light source sheets 22 on a single rectangle is more than 3, and a single folding surface on the boss 21 has more than 1 light source sheet 22. The all-in-one combination can also be RGGB or RBBG or RGBY. The technical effect of the utility model can also be achieved when the ratio of the inner diameter of the bulb shell 1 to the inscribed circle diameter of the light source board 2 is greater than 1.5. By controlling the ratio of the inner diameter of the bulb shell 1 to the inscribed circle diameter of the light source board 2, a reasonable light refraction path or a distance of multi-color mixing is guaranteed, and a boss 21 is provided on the light source board 2 to eliminate dark areas in the LED lamp. At the same time, through the reasonable arrangement of the light source sheet 22 on the light source board 2 and the reasonable layout of the color light chip, the LED lamp can achieve uniform color mixing and high-quality light output effects, and the enclosed space between the bulb shell 1 and the lamp holder 5 is filled with a high thermal conductivity gas to improve the heat dissipation capacity of the LED lamp.
[0048] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above utility model concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.
[0049] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalents, the present application is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that the combination of these measures cannot be used to profit. Any figure mark in the claims should not be considered to limit the scope.
Claims
1. An LED lamp, characterized in that: include: A bulb shell and a light source board, wherein the light source board is located inside the bulb shell, the light source board is composed of a plurality of folded surfaces, a boss or a plane is provided on the top and / or bottom of the light source board, the middle portion of the light source board is a prism, the ratio of the inner diameter of the bulb shell to the diameter of the inscribed circle of the light source board is greater than 1.5, a light source sheet is arranged on each folded surface of the light source board, a plurality of color light chips are arranged on the light source sheet on the same horizontal line, and the color of the first color light chip close to the edge of the folded surface is different from the color of the color light chip closest to the adjacent folded surface.
2. The LED lamp according to claim 1, characterized in that: It also includes a stem, a driving member, a lamp holder and a thumbtack, the light source board is mounted on the stem, the stem is fixed to the bottom of the bulb, the stem is connected to the driving member, the driving member is located in the lamp holder, the lamp holder is located under the bulb, and the thumbtack is mounted on the bottom of the lamp holder.
3. The LED lamp according to claim 1, characterized in that: The folding surface in the middle of the light source panel is a plurality of rectangles, and the number of the rectangles is more than 3.
4. The LED lamp according to claim 3, characterized in that: The number of the rectangles ranges from 5 to 7.
5. The LED lamp according to claim 3, characterized in that: The number of the light source pieces on a single rectangle is more than 3, and the number of the light source pieces on a single folding surface forming a boss or a plane on the light source board is more than 1.
6. The LED lamp according to claim 3, characterized in that: The vertical spacing between the light source sheets on the rectangle ranges from 1 to 30 mm.
7. The LED lamp according to claim 1, characterized in that: The light source board is provided with a circuit layer, and the bottom of the light source board is provided with a solder pad.
8. The LED lamp according to claim 1, characterized in that: The light source sheet is composed of all-in-one or discrete color light chips, and the all-in-one combination is RGB or RGGB or RBBG or RGBY.
9. The LED lamp according to claim 1, characterized in that: The light source board is made of an aluminum substrate or a glass fiber board.
10. The LED lamp according to claim 1, characterized in that: The closed space between the bulb shell and the lamp holder is filled with inert gas or a mixed gas of inert gas and oxygen.