WO2018165807A1 - Led bulb with dual bulb shells - Google Patents

Led bulb with dual bulb shells Download PDF

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Publication number
WO2018165807A1
WO2018165807A1 PCT/CN2017/076385 CN2017076385W WO2018165807A1 WO 2018165807 A1 WO2018165807 A1 WO 2018165807A1 CN 2017076385 W CN2017076385 W CN 2017076385W WO 2018165807 A1 WO2018165807 A1 WO 2018165807A1
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WO
WIPO (PCT)
Prior art keywords
bulb
led
lamp
double
light
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PCT/CN2017/076385
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French (fr)
Chinese (zh)
Inventor
周南庆
吴荣奎
Original Assignee
正屋(厦门)电子有限公司
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Application filed by 正屋(厦门)电子有限公司 filed Critical 正屋(厦门)电子有限公司
Priority to PCT/CN2017/076385 priority Critical patent/WO2018165807A1/en
Priority to PCT/CN2017/119747 priority patent/WO2018166278A1/en
Publication of WO2018165807A1 publication Critical patent/WO2018165807A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/02—Cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses

Definitions

  • the invention relates to a LED bulb, in particular to a double bulb LED bulb.
  • the traditional incandescent lamp has a relatively large illumination angle, but compared with the LED lamp, the energy consumption is high and the service life is short. Now the market in Europe and the United States needs a large angle LED lamp to replace the traditional incandescent lamp, and at the same time, it is desired to have a shape and a traditional incandescent lamp. The lights are similar.
  • LED is a kind of semiconductor material made of electroluminescence. It has excellent characteristics such as low voltage, high efficiency, good monochromaticity, strong applicability, good stability, short response time, long life and no pollution to the environment. Widely used in lighting, decoration and other fields.
  • An LED bulb based LED chip has emerged. An important difference between this type of LED bulb and a conventional incandescent bulb is that the illuminator in the bulb is replaced by an LED chip.
  • the illumination angle of the LED chip is generally only about 120 degrees, and most of them have the problem of glare. To achieve a large illumination angle, the angle of the lens needs to be diverged to make the angle larger, but the light emitted by the lens is generally uneven, visually There are obvious light and dark rays, so ordinary LED lights can not meet the market requirements.
  • the invention patent No. 201410032322.4 discloses an LDE lamp with a double-layer bulb
  • the lamp body is provided with a lamp cap at one end and the other end is installed a small bubble shell and a large bulb shell covering the outer side of the small bulb shell, the inner space of the lamp body is mounted with electrical components; an LED chip is mounted on the bottom surface of the small bulb shell, and the bottom surface of the small bulb shell is higher than the large one The bottom surface of the bulb is at a certain distance.
  • the structure allows the light of the LED chip to pass through the diffusion of the two layers of the bulb, thereby expanding the illumination angle of the whole lamp.
  • the above-mentioned LED lamp with a double-layered bulb ensures a good heat dissipation, and the lamp holder needs to be provided with a large volume to ensure the heat dissipation efficiency of the LED.
  • the body of the LED lamp of the blister is thicker, and there is still a big difference between the shape of the traditional incandescent lamp.
  • the LED chip of the LED lamp with the double-layer bulb is gradually diffused by the two-layer milk white bulb, the effective lumen of the whole lamp is seriously degraded, and the diffusion angle can only reach about 250 degrees, even if the reflector is added, The angle of illumination can only reach about 270.
  • the present inventors have developed and designed the present invention in view of the many shortcomings and inconveniences caused by the unfinished design of the LED lamp structure having the double-layered blister.
  • the solution of the present invention is:
  • a double-bubble LED bulb comprising a lamp cap, a lamp holder fitted on the top of the lamp cap, a circuit board for driving the LED chip, a columnar base disposed at the top of the lamp holder, and a bulb shell disposed on the outer ring of the column base, And an outer bulb disposed on the outer ring of the inner bulb, the column base is tapered upward from the socket, the heat dissipation channel is formed inside the column base, and the outer circumference of the column base is equidistantly provided with at least three columns of LED lamps Strips, a plurality of LED chips are distributed on each LED strip, each The distance between the LED chip and the inner bulb is D>0, the top end of the inner bulb is provided with an air outlet communicating with the heat dissipation channel, and the top end of the outer bulb is provided with a vent opposite to the air outlet.
  • the inner bulb is a cone having a narrow width and a narrow width.
  • the inner bulbs respectively form an outer convex area corresponding to the positions of the LED light strips, and the inner bulbs respectively form a concave area corresponding to the position between the adjacent two LED light strips, the inner concave area and the outer convex area
  • the arc is excessive.
  • the convex region of the inner bulb is a curved surface.
  • each of the LED light bar light LED chips to extend the intersection of the center line O, the width of the LED chip emitting chord length L, the light emitting angle of 120 °, incident angle of 0 ° ⁇ 1 ⁇ 45 °, the arc bulb The arc length AB of the surface satisfies the following conditions:
  • the angle between 3OA and OB is ⁇ 120°;
  • the inner bulb outer convex region is a plane.
  • the concave area of the inner bulb is a curved surface.
  • the columnar base is a heat dissipating aluminum piece.
  • the lamp holder is adjacent to the lower end edge of the lamp head and has an air inlet.
  • the present invention can greatly enlarge the light-emitting area by providing a plurality of rows of LED light bars on the columnar base having a narrow width and a narrow width, and then cooperate with the cover to function as a uniform light and anti-glare outside the LED light bar.
  • the bulb and the transparent outer bulb with the dustproof and safety protection function outside the inner bulb, so that the light of the LED chip is successively diffused by the inner bulb and the outer bulb, so that the illumination angle of the whole lamp is greater than 300 °, and the light is soft and uniform, in line with ENERGY STAR's standard for the angle of the lamp.
  • the columnar base of the invention is arranged longitudinally, so that the LED light bars are three-dimensionally distributed in the double bubble shell, and the bulb thus formed does not have a thick lamp holder, and therefore, the appearance of the traditional incandescent lamp is more To be close.
  • the present invention designs an inner bulb having a lens function according to the Nefer's formula, the shape and structure of the LED chip, and the function can effectively improve the light transmittance of the inner bulb, so that the illumination angle of the whole lamp is greater than 300°.
  • the light is soft and uniform, in line with ENERGY STAR's standard for the angle of the bulb, at the same time, reducing the loss of effective lumens and improving the light efficiency of the whole lamp.
  • FIG. 1 is a schematic view of the appearance of a first preferred embodiment of the present invention.
  • Figure 2 is a longitudinal cross-sectional view showing a first preferred embodiment of the present invention.
  • FIG. 3 is a schematic diagram of illumination according to a first preferred embodiment of the present invention.
  • Figure 4 is a transverse cross-sectional view of a first preferred embodiment of the present invention.
  • FIG. 5 is a schematic diagram of illumination according to a second preferred embodiment of the present invention.
  • Figure 6 is a transverse cross-sectional view showing a second preferred embodiment of the present invention.
  • Figure 7 is a transverse cross-sectional view showing a third preferred embodiment of the present invention.
  • Figure 8 is a plot of reflectance as a function of incident angle ⁇ 1 .
  • Figure 9 is a light distribution test chart of the present invention in the state of C0-C180.
  • Figure 10 is a graph showing the light distribution test of the present invention in the C90-C270 state.
  • Fig. 11 is a schematic view showing the light distribution measured by the conventional double-layer bulb LED-A60 (inner + outer milk white bulb) in the C0-C180 state.
  • Fig. 12 is a schematic view showing the light distribution measured by the conventional double-layer bulb LED-A60 (inner + outer milk white bulb) in the C90-C270 state.
  • Figure 13 shows the existing double-layer bulb LED-A60 (without inner bulb) in the C0-C180 state. Schematic diagram of the measured light distribution.
  • Fig. 14 is a schematic view showing the light distribution measured by the conventional double-layer bulb LED-A60 (without the inner bulb) in the C90-C270 state.
  • Figure 15 is a light distribution diagram of the LED bubble lamp LED-A60 (without blister) of the double-layer bulb of the present invention measured at C45 (Max), C0-C180, and C90-C270.
  • Fig. 16 is a view showing the light distribution of the double-bulb LED bulb LED-A60 (inner bulb having a lens function) at C45 (Max), C0-C180, and C90-C270.
  • Figure 17 is a diagram showing the light distribution of the LED bulb LED-A60 (inner bulb without lens function) of the double-layer bulb of the present invention at C45 (Max), C0-C180, and C90-C270.
  • the present invention discloses a double-bubble LED bulb
  • FIG. 1 to FIG. 7 are three preferred embodiments of the present invention.
  • the double-bubble LED bulbs of the three embodiments each include a lamp cap 1 and a lamp cap. a lamp holder 2 at the top, a circuit board 3 for driving the operation of the LED chip, a columnar base 4 disposed at the top of the lamp holder 2, a bulb 5 provided in the outer ring of the columnar base 4, and an outer ring provided in the outer ring of the inner bulb 5.
  • the lamp holder 2 is adjacent to the lower end edge of the lamp cap 1 and has an air inlet port 21.
  • the columnar base 4 is a heat dissipating aluminum member which is tapered upward from the lamp holder 2.
  • the columnar base 4 defines a heat dissipation passage 7 inside, and the column base 4 outer rings are equidistantly provided with at least three columns of LED strips 8 (as shown in the respective figures, three embodiments are described by taking four columns of LED strips 8 as an example), and a plurality of LEDs are distributed on each of the LED strips 8
  • the chip 81 has a distance D>0 between the LED chips 81 and the inner bulb 5, and the top end of the inner bulb 5 is provided with an air outlet 51 communicating with the heat dissipation channel 7.
  • the top end of the outer bulb 6 is provided with a vent 61 opposite to the air outlet 51.
  • the hot air in the bulb is discharged from the top of the heat dissipating passage 7 through the heat dissipating aluminum member, and the bottom of the heat dissipating passage 7
  • the air inlet 21 of the lamp holder 2 communicates with the air inlet 21 of the lamp housing 5, and the air outlet 51 of the inner bulb 5 and the air outlet 61 of the outer bulb 6 communicate with each other to form a small heat dissipation channel.
  • the air generates a temperature difference, thereby accelerating the flow of the gas.
  • the heat dissipation of the present invention is mainly achieved by the air flow, and at the same time, the lamp holder 2 can also dissipate heat, and only the heat dissipation fins of the LED lamp of the existing double-layer bulb are used.
  • the contact heat dissipation of the sheet, the heat dissipation efficiency of the invention is higher, the heat dissipation effect is better, and the service life of the LED lamp bead is more favorable.
  • the invention provides a plurality of rows of LED strips 8 on the columnar base 4 which is narrow in the lower width, and then cooperates with the inner bulb 5 which functions as a uniform light and anti-glare outside the LED strip 8 and cooperates with the inner bulb.
  • the transparent outer bulb 6 having dustproof and safety protection function outside the shell 5, so that the light of the LED chip 81 is successively diffused by the inner bulb 5 and the outer bulb 6, so that the illumination angle of the whole lamp is larger, compared with
  • the LED lamp of the existing double-layer bulb has a wider illumination range and higher lumen; the columnar base 4 of the present invention is longitudinally disposed, so that the LED strips 8 are stereoscopically distributed in the double bulbs 5 and 6, so The resulting bulb does not have a thick lamp holder and, therefore, is closer to the appearance of a conventional incandescent lamp.
  • the three embodiments of the present invention differ in that the structure of the inner bulb 5 is different.
  • the inner bulb 5 is respectively formed with an outer convex portion 52 corresponding to the position of each of the LED light strips 8, and the inner bulb 5 corresponds to two adjacent LED light strips 8
  • the positions between the recesses 53 and the outer convex regions 52 are excessively curved.
  • the outer convex portions 52 and the inner concave portions 53 of the inner bulb 5 are each Curved surface.
  • the inner bulb 5 is respectively formed with an outer convex portion 52 corresponding to the positions of the LED light strips 8 , and the inner bulb 5 corresponds to two adjacent LED light strips.
  • the positions between 8 respectively form a concave area 53, and the concave area 53 and the outer convex area 52 are adopted.
  • each of the outer convex regions 52 of the inner bulb 5 is a flat surface, and each inner concave portion 53 is a curved surface.
  • the inner bulb 5 is a cone having a narrow width and a narrow width.
  • the inner bulb 5 of the above three embodiments has a significantly larger illumination angle than the existing double-layer bulb LED lamp which is designed with the LED chip on the bottom surface of the lamp holder, in order to further improve the luminous efficacy of the whole lamp and reduce the lumen
  • the LED chip 81 emits light in a fan-shaped manner in which the light-emitting width L of the LED chip 81 is a chord length and the angle is 120°.
  • the formula of the ratio of the energy of refraction to the incident energy can be obtained.
  • the derivation process is as follows:
  • the inner bulb 5 has a refractive index n, the incident energy is I 1 , the reflected energy is I′ 1 , the refractive energy I 2 , the incident angle is ⁇ 1 , the refraction angle is ⁇ 2 , and the parallel component of the incident light amplitude (parallel
  • the plane formed by the incident light and the reflected light is A p1 , the parallel component of the amplitude of the reflected light is A' p1 , the parallel component of the amplitude of the refracted light is A p2 ; the vertical component of the amplitude of the incident light is A s1 , and the vertical amplitude of the reflected light
  • the component is A' s1 , and the vertical component of the refracted light amplitude is A s2 ; the luminance I is set with the superscript.
  • the reflectance plotted as shown in Figure 8 is a function of the angle of incidence ⁇ 1 .
  • This curve is calculated when an incident light wave in the air is projected onto a glass having a refractive index of 1.73.
  • Fig. 8 the surface is shown.
  • ⁇ 1 0°, that is, when it is perpendicularly incident on the interface, the light is reflected least and transmitted a lot.
  • ⁇ 1 ⁇ 45° the increase of light reflection is slow, and the projection is The reduction is very slow, about equal to the value of normal incidence.
  • the region of 45° ⁇ ⁇ 1 ⁇ 90° the light is reflected more and more, and the refraction is less and less.
  • the incident angle when the incident angle is 0 ⁇ ⁇ 1 ⁇ 45 °, the light transmittance is the highest. Therefore, when designing the inner bulb 5, in order to achieve the desired light transmittance, the incident angle of the light and the bulb should be in the range of 0 ⁇ ⁇ 1 ⁇ 45 °.
  • the inner bulb 5 outside the LED chip 81 is designed to have a circular arc (as in the first embodiment); and the arc AB satisfies the following points:
  • the angle between 3OA and OB is ⁇ 120°;
  • the test procedure and test results of the illumination angles of the conventional LED lamps of the same type LED-A60 (ie, the maximum diameter of the lamp is 60 mm) and the LED lamp of the present invention are shown.
  • the test machine adopts Zhejiang three-color light distribution tester.
  • the standard adopts the North American Industry Association standard "ANSI C78.379 shooting light angle standard", which specifies that the illumination angle is a semi-light intensity angle, that is, the position that reaches half of the maximum light intensity can be considered effective. angle.
  • the test process is to install the lamp on the three-color light distribution tester in Zhejiang.
  • the light collector 9 will circulate around the lamp to collect light. As shown in Fig.
  • the light collector 9 in the C0-C180 state of the lamp, the light collector 9 is wound around the lamp. After one revolution, all the light of the luminaire on this axis was collected and presented in the test report C0-C180. After the axis is tested, the LED light will turn 90 degrees according to the command, so that the axis becomes C90-C270. As shown in Figure 10, the light collector 9 turns around the lamp again, collecting all the light of the axis, which is presented in The test reports the light distribution of C90-C270.
  • test results can be obtained as follows:
  • the LED light bar 8 of the present invention is placed vertically in the center of the light bulb, which can greatly enlarge the light-emitting area, and the inner bulb 5 close to the LED light bar 8 can achieve uniform light and anti-glare.
  • the transparent outer bulb 6 disposed outside has the function of dustproof and safety protection, so that the illumination angle of the whole lamp is greater than 300 degrees, and the light is soft and uniform, which conforms to the standard of the "Energy Star" for the angle of the bulb, especially
  • the inner bulb 5 of the present invention designs an inner bulb 5 having a lens function according to the Finney formula, the shape and structure of the LED chip, and the function can effectively improve the light transmittance of the inner bulb, thereby allowing the whole lamp to The angle is more than 300 degrees, and the light is soft and even. According to the "Energy Star Standard", it reduces the loss of effective lumens and improves the light efficiency of the whole lamp.

Abstract

Disclosed is an LED bulb with dual bulb shells, comprising a bulb holder (1), a bulb base (2) fitting at the top of the bulb holder (1), a circuit board (3) driving an LED chip to work, a columnar mount (4) disposed on top of the bulb base (2), an inner bulb shell (5) disposed aroundthe columnar mount (4), and an outer bulb shell (6) disposed around the inner bulb shell (5). The columnar mount (4) is tapered upward from the lamp base (2), and a heat dissipation channel (7) is formed inside the columnar mount (4). At least three columns of LED light bars (8) are disposed at equal intervals around the columnar mount (4). A plurality of LED chips (81) are distributed on each LED bar (8). The distance D between each LED chip (81) and the inner bulb shell (5) is greater than 0. An air outlet (51) that is in communication with the heat dissipation channel (7) is disposed at the top end of the inner bulb shell (5). A ventilation port (61) that is in communication with the air outlet (51) is disposed at the top end of the outer bulb shell (6). The LED bulb with dual bulb shells has a large illumination angle and a wide illumination area, and the light therefrom is soft and uniform.

Description

一种双泡壳的LED泡灯Double bulb LED bulb 技术领域Technical field
本发明涉及一种LED泡灯，特别是指一种双泡壳的LED泡灯。The invention relates to a LED bulb, in particular to a double bulb LED bulb.
背景技术Background technique
传统的白炽灯发光角度比较大，但是相对LED灯来说，能耗高使用寿命短，现在欧美地区的市场很需要大角度的LED泡灯来替代传统的白炽灯，同时希望外形与传统的白炽灯相似。The traditional incandescent lamp has a relatively large illumination angle, but compared with the LED lamp, the energy consumption is high and the service life is short. Now the market in Europe and the United States needs a large angle LED lamp to replace the traditional incandescent lamp, and at the same time, it is desired to have a shape and a traditional incandescent lamp. The lights are similar.
LED是一种采用电致发光的半导体材料制作而成，具有电压低、效能高、单色性好、适用性强、稳定性好、响应时间短、寿命长、不污染环境等优良特性，被广泛应用于照明、装饰等领域中。一种基于LED芯片的LED泡灯便应运而生，该种LED泡灯与传统白炽泡灯的一个重要区别点是将泡灯内的发光体由LED芯片替代。但是LED芯片的发光角一般只有120度左右，并且大都存在刺眼的问题，要达到较大的发光角度，需通过透镜的发散让角度变大，但是通过透镜发出的光一般不均匀，视觉上会有明显的明暗光线，因此，普通的LED灯达不到市场的要求。LED is a kind of semiconductor material made of electroluminescence. It has excellent characteristics such as low voltage, high efficiency, good monochromaticity, strong applicability, good stability, short response time, long life and no pollution to the environment. Widely used in lighting, decoration and other fields. An LED bulb based LED chip has emerged. An important difference between this type of LED bulb and a conventional incandescent bulb is that the illuminator in the bulb is replaced by an LED chip. However, the illumination angle of the LED chip is generally only about 120 degrees, and most of them have the problem of glare. To achieve a large illumination angle, the angle of the lens needs to be diverged to make the angle larger, but the light emitted by the lens is generally uneven, visually There are obvious light and dark rays, so ordinary LED lights can not meet the market requirements.
为了改善现有LED泡灯发光角度小，发光不均匀的缺陷，业界进行了各种改革，如申请号为201410032322.4的发明专利，其公开了一种具有双层泡壳的LDE灯，该灯的灯体一端设有灯头，另一端安装 有小泡壳以及罩在该小泡壳外侧的大泡壳，该灯体的内部空间安装有电器元件；在该小泡壳的底面处安装有LED芯片，且小泡壳的底面高于大泡壳的底面一定距离。该结构使LED芯片的光线经过两层泡壳的逐次扩散作用，可以扩大整灯的发光角度。In order to improve the defects of the existing LED bulbs with small illumination angle and uneven illumination, various reforms have been made in the industry, such as the invention patent No. 201410032322.4, which discloses an LDE lamp with a double-layer bulb, the lamp The lamp body is provided with a lamp cap at one end and the other end is installed a small bubble shell and a large bulb shell covering the outer side of the small bulb shell, the inner space of the lamp body is mounted with electrical components; an LED chip is mounted on the bottom surface of the small bulb shell, and the bottom surface of the small bulb shell is higher than the large one The bottom surface of the bulb is at a certain distance. The structure allows the light of the LED chip to pass through the diffusion of the two layers of the bulb, thereby expanding the illumination angle of the whole lamp.
由于LED芯片散热是决定发光效率与寿命的问题，上述具有双层泡壳的LED灯为保证良好的散热，其灯座需设置较大的体积以保证LED的散热效率，因此，上述具有双层泡壳的LED灯的灯体显得较为厚重，与传统的白炽灯泡灯在外形上仍存在较大的区别。其次，上述具有双层泡壳的LED灯的LED芯片经两层乳白泡壳的逐渐扩散，整灯的有效流明会严重亏损，且扩散角度也只能达到250度左右，即使增加反光杯，其发光角度也只能达到270左右。Since the heat dissipation of the LED chip is a problem of determining the luminous efficiency and the life, the above-mentioned LED lamp with a double-layered bulb ensures a good heat dissipation, and the lamp holder needs to be provided with a large volume to ensure the heat dissipation efficiency of the LED. The body of the LED lamp of the blister is thicker, and there is still a big difference between the shape of the traditional incandescent lamp. Secondly, the LED chip of the LED lamp with the double-layer bulb is gradually diffused by the two-layer milk white bulb, the effective lumen of the whole lamp is seriously degraded, and the diffusion angle can only reach about 250 degrees, even if the reflector is added, The angle of illumination can only reach about 270.
有鉴于此，本设计人针对上述具有双层泡壳的LED灯结构设计上未臻完善所导致的诸多缺失及不便，而深入构思，且积极研究改良试做而开发设计出本发明。In view of this, the present inventors have developed and designed the present invention in view of the many shortcomings and inconveniences caused by the unfinished design of the LED lamp structure having the double-layered blister.
发明内容Summary of the invention
本发明的目的在于提供一种照射角度大，以LED为光源且外形与白炽灯外形更相近的双泡壳的LED泡灯。It is an object of the present invention to provide a double-bubble LED bulb having a large illumination angle, an LED as a light source and a shape similar to that of an incandescent lamp.
为了达成上述目的，本发明的解决方案是：In order to achieve the above object, the solution of the present invention is:
一种双泡壳的LED泡灯，其包括灯头、配合在灯头顶部的灯座、驱动LED芯片工作的线路板、设置在灯座顶部的柱状基座、设置柱状基座外圈内泡壳、以及设置在内泡壳外圈的外泡壳，所述柱状基座由灯座往上渐缩，该柱状基座内部形成一散热通道，柱状基座外圈等间距设置有至少三列LED灯条，各LED灯条上分布有多个LED芯片，各 LED芯片与内泡壳的间距D＞0，该内泡壳的顶端设有与散热通道相通的出风口，外泡壳的顶端设有与出风口相对的通风口。A double-bubble LED bulb comprising a lamp cap, a lamp holder fitted on the top of the lamp cap, a circuit board for driving the LED chip, a columnar base disposed at the top of the lamp holder, and a bulb shell disposed on the outer ring of the column base, And an outer bulb disposed on the outer ring of the inner bulb, the column base is tapered upward from the socket, the heat dissipation channel is formed inside the column base, and the outer circumference of the column base is equidistantly provided with at least three columns of LED lamps Strips, a plurality of LED chips are distributed on each LED strip, each The distance between the LED chip and the inner bulb is D>0, the top end of the inner bulb is provided with an air outlet communicating with the heat dissipation channel, and the top end of the outer bulb is provided with a vent opposite to the air outlet.
进一步，所述内泡壳为下宽上窄的圆锥体。Further, the inner bulb is a cone having a narrow width and a narrow width.
进一步，所述内泡壳对应各LED灯条的位置分别形成一外凸区，该内泡壳对应相邻两LED灯条之间的位置分别形成一内凹区，内凹区与外凸区圆弧过度。Further, the inner bulbs respectively form an outer convex area corresponding to the positions of the LED light strips, and the inner bulbs respectively form a concave area corresponding to the position between the adjacent two LED light strips, the inner concave area and the outer convex area The arc is excessive.
进一步，所述内泡壳的外凸区为一弧面。Further, the convex region of the inner bulb is a curved surface.
进一步，各LED灯条以各LED芯片光线延长线的交点为圆心O，LED芯片的发光宽度L为弦长，发光角度为120°，入射角0°≤θ1＜45°，内泡壳弧面的弧长AB满足以下条件：Further, each of the LED light bar light LED chips to extend the intersection of the center line O, the width of the LED chip emitting chord length L, the light emitting angle of 120 °, incident angle of 0 ° ≤θ 1 <45 °, the arc bulb The arc length AB of the surface satisfies the following conditions:
①圆心为O点；1 center is O point;
②半径R＝OA，且
Figure PCTCN2017076385-appb-000001
2 radius R = OA, and
Figure PCTCN2017076385-appb-000001
③OA与OB的夹角≥120°；The angle between 3OA and OB is ≥120°;
④
Figure PCTCN2017076385-appb-000002
4
Figure PCTCN2017076385-appb-000002
进一步，所述内泡壳外凸区为一平面。Further, the inner bulb outer convex region is a plane.
进一步，所述内泡壳的内凹区为一弧面。Further, the concave area of the inner bulb is a curved surface.
进一步，所述柱状基座为散热铝件。Further, the columnar base is a heat dissipating aluminum piece.
进一步，所述灯座邻接灯头的下端缘分布有进风口。Further, the lamp holder is adjacent to the lower end edge of the lamp head and has an air inlet.
采用上述结构后，本发明通过在下宽上窄的柱状基座上设置多列LED灯条，可大幅度扩大发光面积，再配合罩盖在LED灯条外起到均光和防眩光作用的内泡壳，及配合在内泡壳外具有防尘及安全保护作用的透明外泡壳，这样LED芯片的光线经过内泡壳及外泡壳的逐次扩散作用，从而使整灯的发光角度大于300°，并且光线柔和均匀，符合能源之星对泡灯角度的标准。相较于现有双层泡壳的LED灯，其发 光范围更广；本发明柱状基座呈纵向设置，使各LED灯条实现立体分布于双泡壳内，如此形成的泡灯不会出现厚重的灯座，因此，与传统白炽灯的外观更为接近。After adopting the above structure, the present invention can greatly enlarge the light-emitting area by providing a plurality of rows of LED light bars on the columnar base having a narrow width and a narrow width, and then cooperate with the cover to function as a uniform light and anti-glare outside the LED light bar. The bulb and the transparent outer bulb with the dustproof and safety protection function outside the inner bulb, so that the light of the LED chip is successively diffused by the inner bulb and the outer bulb, so that the illumination angle of the whole lamp is greater than 300 °, and the light is soft and uniform, in line with ENERGY STAR's standard for the angle of the lamp. Compared with the existing double-layer bulb LED lamp, its hair The light range is wider; the columnar base of the invention is arranged longitudinally, so that the LED light bars are three-dimensionally distributed in the double bubble shell, and the bulb thus formed does not have a thick lamp holder, and therefore, the appearance of the traditional incandescent lamp is more To be close.
特别是，本发明根据涅菲尔公式、LED芯片形状和结构性价比设计出具有透镜功能的内泡壳，该功能可有效提高内泡壳的透光性，从而让整灯的发光角度大于300°，且光线柔和均匀，符合能源之星对泡灯角度的标准，同时，减少了有效流明的损失，提高整灯的光效。In particular, the present invention designs an inner bulb having a lens function according to the Nefer's formula, the shape and structure of the LED chip, and the function can effectively improve the light transmittance of the inner bulb, so that the illumination angle of the whole lamp is greater than 300°. The light is soft and uniform, in line with ENERGY STAR's standard for the angle of the bulb, at the same time, reducing the loss of effective lumens and improving the light efficiency of the whole lamp.
附图说明DRAWINGS
图1为本发明第一较佳实施例的外观示意图。1 is a schematic view of the appearance of a first preferred embodiment of the present invention.
图2为本发明第一较佳实施例的纵向剖视图。Figure 2 is a longitudinal cross-sectional view showing a first preferred embodiment of the present invention.
图3为本发明第一较佳实施例的光照示意图。3 is a schematic diagram of illumination according to a first preferred embodiment of the present invention.
图4为本发明第一较佳实施例的横向剖视图。Figure 4 is a transverse cross-sectional view of a first preferred embodiment of the present invention.
图5为本发明第二较佳实施例的光照示意图。FIG. 5 is a schematic diagram of illumination according to a second preferred embodiment of the present invention.
图6为本发明第二较佳实施例的横向剖视图。Figure 6 is a transverse cross-sectional view showing a second preferred embodiment of the present invention.
图7为本发明第三较佳实施例的横向剖视图。Figure 7 is a transverse cross-sectional view showing a third preferred embodiment of the present invention.
图8为反射率随入射角θ1变化的函数曲线。Figure 8 is a plot of reflectance as a function of incident angle θ 1 .
图9为本发明在C0-C180状态时光分布测试图。Figure 9 is a light distribution test chart of the present invention in the state of C0-C180.
图10为本发明在C90-C270状态时光分布测试图。Figure 10 is a graph showing the light distribution test of the present invention in the C90-C270 state.
图11为现有双层泡壳LED-A60(内+外乳白泡壳)在C0-C180状态时所测得的光分布示意图。Fig. 11 is a schematic view showing the light distribution measured by the conventional double-layer bulb LED-A60 (inner + outer milk white bulb) in the C0-C180 state.
图12为现有双层泡壳LED-A60(内+外乳白泡壳)在C90-C270状态时所测得的光分布示意图。Fig. 12 is a schematic view showing the light distribution measured by the conventional double-layer bulb LED-A60 (inner + outer milk white bulb) in the C90-C270 state.
图13为现有双层泡壳LED-A60(无内泡壳)在C0-C180状态时 所测得的光分布示意图。Figure 13 shows the existing double-layer bulb LED-A60 (without inner bulb) in the C0-C180 state. Schematic diagram of the measured light distribution.
图14为现有双层泡壳LED-A60(无内泡壳)在C90-C270状态时所测得的光分布示意图。Fig. 14 is a schematic view showing the light distribution measured by the conventional double-layer bulb LED-A60 (without the inner bulb) in the C90-C270 state.
图15为本发明双层泡壳的LED泡灯LED-A60(无泡壳)在C45(Max)、C0-C180、及C90-C270时所测得的光分布图。Figure 15 is a light distribution diagram of the LED bubble lamp LED-A60 (without blister) of the double-layer bulb of the present invention measured at C45 (Max), C0-C180, and C90-C270.
图16为本发明双层泡壳的LED泡灯LED-A60(具有透镜功能的内泡壳)在C45(Max)、C0-C180、及C90-C270时所测得的光分布图。Fig. 16 is a view showing the light distribution of the double-bulb LED bulb LED-A60 (inner bulb having a lens function) at C45 (Max), C0-C180, and C90-C270.
图17为本发明双层泡壳的LED泡灯LED-A60(内泡壳无透镜功能)在C45(Max)、C0-C180、及C90-C270时所测得的光分布图。Figure 17 is a diagram showing the light distribution of the LED bulb LED-A60 (inner bulb without lens function) of the double-layer bulb of the present invention at C45 (Max), C0-C180, and C90-C270.
具体实施方式detailed description
为了进一步解释本发明的技术方案，下面通过具体实施例来对本发明进行详细阐述。In order to further explain the technical solutions of the present invention, the present invention will be described in detail below by way of specific embodiments.
本发明揭示了一种双泡壳的LED泡灯，如图1至图7为本发明的三个较佳实施例，三个实施例的双泡壳LED泡灯均包括灯头1、配合在灯头1顶部的灯座2、驱动LED芯片工作的线路板3、设置在灯座2顶部的柱状基座4、设置柱状基座4外圈内泡壳5、以及设置在内泡壳5外圈的外泡壳6。灯座2邻接灯头1的下端缘分布有进风口21，所述柱状基座4是由灯座2往上渐缩的散热铝件，该柱状基座4内部形成一散热通道7，柱状基座4外圈等间距设置有至少三列LED灯条8(如各图所示，三个实施例均以4列LED灯条8为例进行说明)，各LED灯条8上分布有多个LED芯片81，各LED芯片81与内泡壳5的间距D＞0，该内泡壳5的顶端设有与散热通道7相通的出风口51， 外泡壳6的顶端设有与出风口51相对的通风口61，当LED灯条8工作时，泡灯内的热空气会通过散热铝件从散热通道7的顶部排出，散热通道7的底部与灯座2的进风口21相通，散热通道7的顶部与内泡壳5的出风口51及外泡壳6的通风口61相通，呈上小下大的散热通道会使散热器腔室内的空气产生温差，从而加快气体的流动，也就是说，本发明的散热主要是通过气流实现的，同时，灯座2也可进行散热，相对现有双层泡壳的LED灯仅采用的散热鳍片的接触散热，本发明的散热效率更高，散热效果更佳，更利于LED灯珠的使用寿命。The present invention discloses a double-bubble LED bulb, and FIG. 1 to FIG. 7 are three preferred embodiments of the present invention. The double-bubble LED bulbs of the three embodiments each include a lamp cap 1 and a lamp cap. a lamp holder 2 at the top, a circuit board 3 for driving the operation of the LED chip, a columnar base 4 disposed at the top of the lamp holder 2, a bulb 5 provided in the outer ring of the columnar base 4, and an outer ring provided in the outer ring of the inner bulb 5. Outer bulb 6. The lamp holder 2 is adjacent to the lower end edge of the lamp cap 1 and has an air inlet port 21. The columnar base 4 is a heat dissipating aluminum member which is tapered upward from the lamp holder 2. The columnar base 4 defines a heat dissipation passage 7 inside, and the column base 4 outer rings are equidistantly provided with at least three columns of LED strips 8 (as shown in the respective figures, three embodiments are described by taking four columns of LED strips 8 as an example), and a plurality of LEDs are distributed on each of the LED strips 8 The chip 81 has a distance D>0 between the LED chips 81 and the inner bulb 5, and the top end of the inner bulb 5 is provided with an air outlet 51 communicating with the heat dissipation channel 7. The top end of the outer bulb 6 is provided with a vent 61 opposite to the air outlet 51. When the LED strip 8 is operated, the hot air in the bulb is discharged from the top of the heat dissipating passage 7 through the heat dissipating aluminum member, and the bottom of the heat dissipating passage 7 The air inlet 21 of the lamp holder 2 communicates with the air inlet 21 of the lamp housing 5, and the air outlet 51 of the inner bulb 5 and the air outlet 61 of the outer bulb 6 communicate with each other to form a small heat dissipation channel. The air generates a temperature difference, thereby accelerating the flow of the gas. That is to say, the heat dissipation of the present invention is mainly achieved by the air flow, and at the same time, the lamp holder 2 can also dissipate heat, and only the heat dissipation fins of the LED lamp of the existing double-layer bulb are used. The contact heat dissipation of the sheet, the heat dissipation efficiency of the invention is higher, the heat dissipation effect is better, and the service life of the LED lamp bead is more favorable.
本发明通过在下宽上窄的柱状基座4上设置多列LED灯条8，再配合罩盖在LED灯条8外起到均光和防眩光作用的内泡壳5，及配合在内泡壳5外具有防尘及安全保护作用的透明外泡壳6，这样LED芯片81的光线经过内泡壳5及外泡壳6的逐次扩散作用，从而使整灯的发光角度更大，相较于现有双层泡壳的LED灯，其发光范围更广，流明更高；本发明柱状基座4呈纵向设置，使各LED灯条8实现立体分布于双泡壳5、6内，如此形成的泡灯不会出现厚重的灯座，因此，与传统白炽灯的外观更为接近。The invention provides a plurality of rows of LED strips 8 on the columnar base 4 which is narrow in the lower width, and then cooperates with the inner bulb 5 which functions as a uniform light and anti-glare outside the LED strip 8 and cooperates with the inner bulb. The transparent outer bulb 6 having dustproof and safety protection function outside the shell 5, so that the light of the LED chip 81 is successively diffused by the inner bulb 5 and the outer bulb 6, so that the illumination angle of the whole lamp is larger, compared with The LED lamp of the existing double-layer bulb has a wider illumination range and higher lumen; the columnar base 4 of the present invention is longitudinally disposed, so that the LED strips 8 are stereoscopically distributed in the double bulbs 5 and 6, so The resulting bulb does not have a thick lamp holder and, therefore, is closer to the appearance of a conventional incandescent lamp.
本发明三个实施例的不同之处在于所述内泡壳5的结构不同。The three embodiments of the present invention differ in that the structure of the inner bulb 5 is different.
如图1至图4所示，本发明第一实施例中，内泡壳5对应各LED灯条8的位置分别形成一外凸区52，该内泡壳5对应相邻两LED灯条8之间的位置分别形成一内凹区53，内凹区53与外凸区52采用圆弧过度，本实施例中，内泡壳5的各外凸区52和各内凹区53均为一弧面。As shown in FIG. 1 to FIG. 4, in the first embodiment of the present invention, the inner bulb 5 is respectively formed with an outer convex portion 52 corresponding to the position of each of the LED light strips 8, and the inner bulb 5 corresponds to two adjacent LED light strips 8 The positions between the recesses 53 and the outer convex regions 52 are excessively curved. In this embodiment, the outer convex portions 52 and the inner concave portions 53 of the inner bulb 5 are each Curved surface.
如图5及图6所示，本发明的第二实施例中，内泡壳5对应各LED灯条8的位置分别形成一外凸区52，该内泡壳5对应相邻两LED灯条8之间的位置分别形成一内凹区53，内凹区53与外凸区52采 用圆弧过度，本实施例中，内泡壳5的各外凸区52为一平面，各内凹区53为一弧面。As shown in FIG. 5 and FIG. 6 , in the second embodiment of the present invention, the inner bulb 5 is respectively formed with an outer convex portion 52 corresponding to the positions of the LED light strips 8 , and the inner bulb 5 corresponds to two adjacent LED light strips. The positions between 8 respectively form a concave area 53, and the concave area 53 and the outer convex area 52 are adopted. In the present embodiment, each of the outer convex regions 52 of the inner bulb 5 is a flat surface, and each inner concave portion 53 is a curved surface.
如图7所示，本发明的第三实施例中，内泡壳5为下宽上窄的圆锥体。As shown in Fig. 7, in the third embodiment of the present invention, the inner bulb 5 is a cone having a narrow width and a narrow width.
上述三个实施例的内泡壳5相较于将LED芯片设计在灯座底面的现有双层泡壳的LED灯，其发光角度明显增大，为了进一步提高整灯的光效，减少流明损失，根据菲涅尔公式，由图4可知，LED芯片81的发光方式是以O点为圆心，LED芯片81的发光宽度L为弦长，角度为120°的扇形照射。根据菲涅尔公式可求出折射的能量与入射能量(正比于亮度)之比的公式，推导过程如下：The inner bulb 5 of the above three embodiments has a significantly larger illumination angle than the existing double-layer bulb LED lamp which is designed with the LED chip on the bottom surface of the lamp holder, in order to further improve the luminous efficacy of the whole lamp and reduce the lumen According to the Fresnel formula, it can be seen from Fig. 4 that the LED chip 81 emits light in a fan-shaped manner in which the light-emitting width L of the LED chip 81 is a chord length and the angle is 120°. According to the Fresnel formula, the formula of the ratio of the energy of refraction to the incident energy (proportional to brightness) can be obtained. The derivation process is as follows:
设：内泡壳5的折射率为n，入射能量为I1，反射能量为I’1，折射能量I2，入射角为θ1，折射角为θ2；入射光振幅的平行分量(平行于入射光与反射光构成的平面)为Ap1，反射光振幅的平行分量为A’p1，折射光振幅的平行分量为Ap2；入射光振幅的垂直分量为As1，反射光振幅的垂直分量为A’s1，折射光振幅的垂直分量为As2；亮度I同法设置上下标。Let: the inner bulb 5 has a refractive index n, the incident energy is I 1 , the reflected energy is I′ 1 , the refractive energy I 2 , the incident angle is θ 1 , the refraction angle is θ 2 , and the parallel component of the incident light amplitude (parallel The plane formed by the incident light and the reflected light is A p1 , the parallel component of the amplitude of the reflected light is A' p1 , the parallel component of the amplitude of the refracted light is A p2 ; the vertical component of the amplitude of the incident light is A s1 , and the vertical amplitude of the reflected light The component is A' s1 , and the vertical component of the refracted light amplitude is A s2 ; the luminance I is set with the superscript.
根据菲尼尔公式：According to the Finney formula:
Figure PCTCN2017076385-appb-000003
Figure PCTCN2017076385-appb-000003
Figure PCTCN2017076385-appb-000004
Figure PCTCN2017076385-appb-000004
又因为also because
Figure PCTCN2017076385-appb-000005
Figure PCTCN2017076385-appb-000005
Figure PCTCN2017076385-appb-000006
以及
Figure PCTCN2017076385-appb-000007
μ≈μ1≈μ2；
Figure PCTCN2017076385-appb-000006
as well as
Figure PCTCN2017076385-appb-000007
Μ≈μ 1 ≈μ 2 ;
所以and so
Figure PCTCN2017076385-appb-000008
Figure PCTCN2017076385-appb-000008
Figure PCTCN2017076385-appb-000009
Figure PCTCN2017076385-appb-000009
又由于有
Figure PCTCN2017076385-appb-000010
所以Because of
Figure PCTCN2017076385-appb-000010
and so
Figure PCTCN2017076385-appb-000011
Figure PCTCN2017076385-appb-000011
同理，Similarly,
Figure PCTCN2017076385-appb-000012
Figure PCTCN2017076385-appb-000012
又因为：sinθ1＝n sinθ2 Also because: sin θ 1 = n sin θ 2
由此可知，光的透过率随着入射角的减小而升高。From this, it can be seen that the transmittance of light increases as the incident angle decreases.
为了便于理解，如图8所示所绘的反射率随入射角θ1变化的函数曲线。这一曲线是当空气中的入射光波投射到折射率为1.73的玻璃上反射时，经计算得到的。图8中，图示表面，当θ1＝0°时，即垂直入射在界面上时，光反射得最少，透射得很多，在θ1＜45°的区域光反射的增加很缓慢，投射的减少很缓慢，约等于垂直入射的值。但是在45°≤θ1≤90°的区域，光反射得越来越多，折射的越来越少。 For ease of understanding, the reflectance plotted as shown in Figure 8 is a function of the angle of incidence θ 1 . This curve is calculated when an incident light wave in the air is projected onto a glass having a refractive index of 1.73. In Fig. 8, the surface is shown. When θ 1 =0°, that is, when it is perpendicularly incident on the interface, the light is reflected least and transmitted a lot. In the region of θ 1 <45°, the increase of light reflection is slow, and the projection is The reduction is very slow, about equal to the value of normal incidence. However, in the region of 45° ≤ θ 1 ≤ 90°, the light is reflected more and more, and the refraction is less and less.
总结，入射角在0≤θ1＜45°时，光的透光性最高。故设计内泡壳5时，为了到达理想的透光性，光与泡壳的入射角要在0≤θ1＜45°这个范围内。In summary, when the incident angle is 0 ≤ θ 1 < 45 °, the light transmittance is the highest. Therefore, when designing the inner bulb 5, in order to achieve the desired light transmittance, the incident angle of the light and the bulb should be in the range of 0 ≤ θ 1 < 45 °.
因此罩盖在LED芯片81外的内泡壳5设计呈圆弧为最佳(如实施例1)；且该圆弧AB满足以下几点：Therefore, it is preferred that the inner bulb 5 outside the LED chip 81 is designed to have a circular arc (as in the first embodiment); and the arc AB satisfies the following points:
①圆心为O点；1 center is O point;
②半径R＝OA，且
Figure PCTCN2017076385-appb-000013
2 radius R = OA, and
Figure PCTCN2017076385-appb-000013
③OA与OB的夹角≥120°；The angle between 3OA and OB is ≥120°;
④
Figure PCTCN2017076385-appb-000014
4
Figure PCTCN2017076385-appb-000014
如图9至图17所示，为对同样型号LED-A60(即灯的最大直径为60mm)的现有普通LED灯与本发明结构LED泡灯的发光角度的测试过程及测试结果。测试机器采用浙江三色光分布测试仪，标准采用北美工业协会标准《ANSI C78.379射灯光角度标准》，该标准规定发光角度为半光强角，即达到最大光强一半以上的位置才能算有效角度。测试过程为，将灯装在浙江三色光分布测试仪上，光线收集仪9会绕灯转一圈来收集光线，如图9所示，在灯具的C0-C180状态，光线收集仪9绕灯转一圈，就收集到了灯具在这个轴线所有的光线，呈现在测试报告C0-C180这个光分布。等这一轴线测试好后，LED灯会按命令转90度，使轴线变为C90-C270，如图10所示，光线收集仪9再绕灯转一圈，收集该轴线全部的光线，呈现在测试报告C90-C270这个光分布。As shown in FIG. 9 to FIG. 17, the test procedure and test results of the illumination angles of the conventional LED lamps of the same type LED-A60 (ie, the maximum diameter of the lamp is 60 mm) and the LED lamp of the present invention are shown. The test machine adopts Zhejiang three-color light distribution tester. The standard adopts the North American Industry Association standard "ANSI C78.379 shooting light angle standard", which specifies that the illumination angle is a semi-light intensity angle, that is, the position that reaches half of the maximum light intensity can be considered effective. angle. The test process is to install the lamp on the three-color light distribution tester in Zhejiang. The light collector 9 will circulate around the lamp to collect light. As shown in Fig. 9, in the C0-C180 state of the lamp, the light collector 9 is wound around the lamp. After one revolution, all the light of the luminaire on this axis was collected and presented in the test report C0-C180. After the axis is tested, the LED light will turn 90 degrees according to the command, so that the axis becomes C90-C270. As shown in Figure 10, the light collector 9 turns around the lamp again, collecting all the light of the axis, which is presented in The test reports the light distribution of C90-C270.
另外，根据《能源之星标准》规定：In addition, according to the ENERGY STAR Standard:
1、90％的点光强度不能高或低于平均值的25％，也就是10％的点可以超过。 1. 90% of the spot light intensity cannot be higher or lower than 25% of the average value, that is, the 10% point can be exceeded.
2、在135°到180°之间，必须要超过5％的流明。2, between 135 ° and 180 °, must exceed 5% of the lumens.
根据图11至图17所测得的发分布图，可以得到测试结果如下表：According to the distribution map measured in Figures 11 to 17, the test results can be obtained as follows:
Figure PCTCN2017076385-appb-000015
Figure PCTCN2017076385-appb-000015
从测试结果可以看出，本发明LED灯条8呈竖直放置在泡灯的中心，可大幅度扩大发光面积，靠近该LED灯条8的内泡壳5可起到均光和防眩光的作用，设置在外部的透明外泡壳6具有防尘及安全保护作用，从而让整灯的发光角度大于300度，且光线柔和均匀，符合《能源之星》对泡灯角度规定的标准，特别是本发明的内泡壳5根据菲尼尔公式、LED芯片形状和结构性价比设计出具有透镜功能的内泡壳5，该功能可有效的提高内泡壳的透光性，从而让整灯在角度大于300度，且光线柔和均匀，符合《能源之星标准》的基础上，有减少了有效流明的损失，提高整灯的光效。It can be seen from the test results that the LED light bar 8 of the present invention is placed vertically in the center of the light bulb, which can greatly enlarge the light-emitting area, and the inner bulb 5 close to the LED light bar 8 can achieve uniform light and anti-glare. The transparent outer bulb 6 disposed outside has the function of dustproof and safety protection, so that the illumination angle of the whole lamp is greater than 300 degrees, and the light is soft and uniform, which conforms to the standard of the "Energy Star" for the angle of the bulb, especially The inner bulb 5 of the present invention designs an inner bulb 5 having a lens function according to the Finney formula, the shape and structure of the LED chip, and the function can effectively improve the light transmittance of the inner bulb, thereby allowing the whole lamp to The angle is more than 300 degrees, and the light is soft and even. According to the "Energy Star Standard", it reduces the loss of effective lumens and improves the light efficiency of the whole lamp.
上述实施例和图式并非限定本发明的产品形态和式样，任何所属技术领域的普通技术人员对其所做的适当变化或修饰，皆应视为不脱离本发明的专利范畴。 The above-mentioned embodiments and the drawings are not intended to limit the scope of the invention, and any suitable variations or modifications of the invention will be apparent to those skilled in the art.

Claims (9)

  1. 一种双泡壳的LED泡灯，其特征在于：包括灯头、配合在灯头顶部的灯座、驱动LED芯片工作的线路板、设置在灯座顶部的柱状基座、设置柱状基座外圈内泡壳、以及设置在内泡壳外圈的外泡壳，所述柱状基座由灯座往上渐缩，该柱状基座内部形成一散热通道，柱状基座外圈等间距设置有至少三列LED灯条，各LED灯条上分布有多个LED芯片，各LED芯片与内泡壳的间距D＞0，该内泡壳的顶端设有与散热通道相通的出风口，外泡壳的顶端设有与出风口相对的通风口。A double-bubble LED lamp lamp, comprising: a lamp cap, a lamp holder matched on the top of the lamp cap, a circuit board for driving the LED chip, a columnar base disposed at the top of the lamp holder, and a cylindrical base outer ring a bulb, and an outer bulb disposed on the outer ring of the inner bulb, the column base is tapered upward from the lamp base, and a heat dissipation channel is formed inside the column base, and the outer circumference of the column base is equidistantly provided with at least three Column LED strips, each LED strip is distributed with a plurality of LED chips, the distance between each LED chip and the inner bulb is D>0, the top end of the inner bulb is provided with an air outlet communicating with the heat dissipation channel, and the outer bulb is The top end is provided with a vent opposite to the air outlet.
  2. 如权利要求1所述的一种双泡壳的LED泡灯，其特征在于：所述内泡壳为下宽上窄的圆锥体。A double-bubble LED bulb according to claim 1, wherein the inner bulb is a cone having a narrow width and a narrow width.
  3. 如权利要求1所述的一种双泡壳的LED泡灯，其特征在于：所述内泡壳对应各LED灯条的位置分别形成一外凸区，该内泡壳对应相邻两LED灯条之间的位置分别形成一内凹区，各内凹区与外凸区圆弧过度。A double-bubble LED bulb according to claim 1, wherein the inner bulb forms an outer convex portion corresponding to each LED light strip, and the inner bulb corresponds to two adjacent LED lamps. The positions between the strips respectively form a concave area, and each of the concave areas and the outer convex area is excessively curved.
  4. 如权利要求3所述的一种双泡壳的LED泡灯，其特征在于：所述内泡壳的外凸区为一弧面。A double-bubble LED bulb according to claim 3, wherein the outer convex portion of the inner bulb is a curved surface.
  5. 如权利要求4所述的一种双泡壳的LED泡灯，其特征在于：各LED灯条上的各LED芯片以光线延长线的交点为圆心O，LED芯片的发光宽度L为弦长，发光角度为120°，入射角0°≤θ1＜45°，所述内泡壳弧面的弧长AB满足以下4点：A double-bubble LED lamp lamp according to claim 4, wherein each of the LED chips on each of the LED strips has a center of intersection O of the light extension line, and a light-emitting width L of the LED chip is a chord length. The illuminating angle is 120°, the incident angle is 0° ≤ θ 1 <45°, and the arc length AB of the inner blister arc surface satisfies the following four points:
    ①圆心为O点；1 center is O point;
    ②半径R＝OA，且
    Figure PCTCN2017076385-appb-100001
    2 radius R = OA, and
    Figure PCTCN2017076385-appb-100001
    ③OA与OB的夹角≥120°； The angle between 3OA and OB is ≥120°;
    ④
    Figure PCTCN2017076385-appb-100002
    4
    Figure PCTCN2017076385-appb-100002
  6. 如权利要求3所述的一种双泡壳的LED泡灯，其特征在于：所述内泡壳外凸区为一平面。A double-bubble LED bulb according to claim 3, wherein the inner bulb outer convex region is a flat surface.
  7. 如如权利要求3-6中任意一项所述的一种双泡壳的LED泡灯，其特征在于：所述内泡壳的内凹区为一弧面。A double-bubble LED bulb according to any one of claims 3-6, wherein the inner concave portion of the inner bulb is a curved surface.
  8. 如权利要求1所述的一种双泡壳的LED泡灯，其特征在于：所述柱状基座为散热铝件。A double-bubble LED bulb according to claim 1, wherein the columnar base is a heat-dissipating aluminum member.
  9. 如权利要求1所述的一种双泡壳的LED泡灯，其特征在于：所述灯座邻接灯头的下端缘分布有进风口。 A double-bubble LED bulb according to claim 1, wherein the socket is adjacent to the lower end of the base and has an air inlet.
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