WO2021160078A1 - 一种全方位出光灯罩及具有该灯罩的灯泡 - Google Patents

一种全方位出光灯罩及具有该灯罩的灯泡 Download PDF

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Publication number
WO2021160078A1
WO2021160078A1 PCT/CN2021/075911 CN2021075911W WO2021160078A1 WO 2021160078 A1 WO2021160078 A1 WO 2021160078A1 CN 2021075911 W CN2021075911 W CN 2021075911W WO 2021160078 A1 WO2021160078 A1 WO 2021160078A1
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WO
WIPO (PCT)
Prior art keywords
light
heat dissipation
lampshade
dissipation channel
transmitting
Prior art date
Application number
PCT/CN2021/075911
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English (en)
French (fr)
Inventor
葛铁汉
Original Assignee
葛铁汉
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Publication date
Application filed by 葛铁汉 filed Critical 葛铁汉
Priority to US17/904,027 priority Critical patent/US20230092931A1/en
Priority to EP21753258.9A priority patent/EP4105545A4/en
Publication of WO2021160078A1 publication Critical patent/WO2021160078A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/237—Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/66—Details of globes or covers forming part of the light source
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • 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
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lampshade and a lamp, in particular to a lampshade that emits light in all directions and a bulb with the lampshade.
  • LED lamps have a series of advantages such as long life, high luminous efficiency, no ultraviolet radiation, and good energy-saving effects, which have become the development trend of light sources in the future.
  • the "LED fluorescent lamp” includes a lampshade, an LED light source assembly, an LED drive assembly, two end covers, and a heat dissipation housing.
  • the lampshade is connected to the heat dissipation housing.
  • the two end covers are respectively buckled on the two ends of the lampshade and the heat dissipation housing after the connection, the cross section of the lampshade and the heat dissipation housing are both arc-shaped, and the lampshade and the heat dissipation housing form a cavity, the LED light source assembly And the LED driving component is located in the cavity.
  • This kind of LED fluorescent lamp in order to meet the heat dissipation requirements of the LED, so the LED can only be arranged on a plane. Therefore, although its appearance has the long and straight shape of a fluorescent lamp, its light-emitting area is only 180 degrees, that is, it starts to emit light from a plane. It cannot achieve 360-degree luminescence. Therefore, in the current LED lamps, the heat dissipation area and the light-emitting area are contradictory. Therefore, the existing LED fluorescent lamps cannot achieve 360-degree light emission while meeting the heat dissipation requirements.
  • the technical problem to be solved by the present invention is to provide a lampshade that not only has better heat dissipation performance, but also satisfies omnidirectional light emission, and a bulb with the lampshade.
  • an omnidirectional light-emitting lampshade including a light-transmitting lampshade, the light-transmitting lampshade has a closed space, and at least one penetrating heat dissipation channel is provided in the light-transmitting lampshade, The two ends of the heat dissipation channel are respectively communicated with the outside, and at least one LED filament is arranged in the enclosed space and is arranged on the surface of the at least part of the heat dissipation channel in the enclosed space.
  • a heat sink is fixed on the side of the heat dissipation channel communicating with the outside.
  • the light-transmitting lampshade is provided with an exhaust pipe at the position of the heat dissipation channel, one end of the exhaust pipe is connected to the outside of the heat dissipation channel, and the other end is connected to the enclosed space. Fill the enclosed space with gas or vacuum, and seal the exhaust pipe after the bulb is manufactured.
  • the light-transmitting lampshade is a hollow cylindrical structure with heat dissipation channels extending in the same direction as the hollow cylindrical structure. Enclosed space.
  • one end of the light-transmissive lampshade is connected to the lamp cap, and the other end is connected to the connector, or both ends are connected to the connector, and both ends of the connector can be respectively connected to the two light-transmitting lampshades.
  • the LED filament is provided on the surface of the at least one heat dissipation channel in the enclosed space.
  • heat dissipation channels there are four heat dissipation channels, one is located at the center of the lampshade and extends vertically, the other three are evenly arranged on the periphery of the lampshade and extend up and down, and the other three heat dissipation channels are curved and extended.
  • the LED filaments are wound on the surface of the heat dissipation channel, or the LED filaments are arranged at intervals or crosswise along the surface of the heat dissipation channel.
  • a light bulb with the above-mentioned omnidirectional light-emitting lampshade includes a lamp cap, and a driver is arranged in the lamp cap.
  • the light-transmitting lampshade is connected to the driver in the lamp holder.
  • one end of the light-transmitting lampshade is connected to a connecting piece, and is connected to the lamp cap through the connecting piece), and a plurality of vent holes are provided on the peripheral surface of the connecting piece, and the vent holes communicate with each other.
  • the heat dissipation channel and the outside world are provided on the connecting piece, and the vent holes communicate with each other.
  • the advantages of the present invention are that the light-transmitting lampshade and the bulb with the lampshade can realize 360-degree omnidirectional illumination, large luminous angle, high luminous efficiency, and good heat dissipation performance, which improves the LED lamp
  • the service life of the LED lamp, and the light-transmitting cover of the LED lamp can be combined into lampshades of different lengths and different shapes according to the needs, which is not only convenient for processing, but also expands the applicable scope of the LED lamp.
  • Fig. 1 is a three-dimensional schematic diagram of an LED bulb according to a first embodiment of the present invention.
  • Fig. 2 is an exploded view of the LED bulb according to the first embodiment of the present invention.
  • Fig. 3 is a three-dimensional schematic diagram of an LED bulb according to a second embodiment of the present invention.
  • FIG. 4 is an exploded cross-sectional view of the components of the LED bulb according to the second embodiment of the present invention.
  • Fig. 5 is a cross-sectional view of an LED bulb according to a third embodiment of the present invention.
  • Fig. 6 is a schematic diagram of an LED bulb according to a fourth embodiment of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, “plurality” means two or more than two, unless otherwise specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • installed can be a fixed connection or a detachable connection. , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • the light bulb of the first embodiment of the present invention includes a lamp cap 1, and a light-transmitting lamp shade 2 connected to the lamp cap 1.
  • the lamp cap 1 is provided with a driver 11, and the positive and negative poles of the driver 11 are led out
  • the wire is connected to the lamp cap, and the lamp cap 1 is electrically connected to the outside through the thread at the bottom.
  • the light-transmitting lampshade 2 has a closed space 3 in which an LED filament 4 is arranged.
  • the center of the light-transmitting lampshade 2 is provided with at least one penetrating channel, which is the heat dissipation channel 5, and the heat dissipation channel 5
  • the two ends of the radiator are respectively connected to the outside.
  • the heat dissipation channel 5 is one, located in the center of the light-transmitting lampshade 2, and extends up and down.
  • the enclosed space 3 is an annular space along the heat dissipation channel 5.
  • the LED filament 4 is spirally wound on the surface of the heat dissipation channel 5 in the enclosed space 3, and extends spirally along the heat dissipation channel 5, so that multi-angle and omnidirectional lighting can be provided.
  • the light-transmitting lampshade 2 is a ring-shaped enclosed space, and the bottom end of the lampshade 2 is directly inserted and connected to the lamp holder 1.
  • the LED filament 4 includes a substrate and an LED light-emitting element provided on the substrate.
  • the substrate may be a transparent material such as glass, ceramic, plastic, or an opaque material such as metal, and the surface of the LED light-emitting element is provided on the substrate. It is coated with a phosphor layer, or a transparent protective glue, or a light diffusion, reflective layer and so on.
  • LED light-emitting elements can be LED chips, surface-mounted light-emitting diodes (SMD LEDs), or LED light-emitting elements formed directly on a substrate through processes such as powder coating, die bonding, and wire bonding. Many forms.
  • SMD LEDs surface-mounted light-emitting diodes
  • Lead wires 43 are connected to both ends of the substrate, and are connected to the driver 11 through the lead wires 43.
  • the lead wire 43 passes through the light-transmissive lampshade 2 and is electrically connected to the driver 11 in the lamp holder 1.
  • Lead wires 43 are connected to both ends of the substrate, and are connected to the driver 11 through the lead wires 43.
  • An electrical connection circuit is preset on the substrate to electrically connect the lead 43 and the LED light-emitting element, so as to supply power to the LED light-emitting element. It may also be that the wire is connected to the LED light-emitting element and the lead 43 and then fixedly connected to the substrate and packaged.
  • there are two leads 43 one is connected to the end of the substrate 41 at the bottom of the light-transmitting lampshade 2, and the other extends to the top of the heat dissipation channel 3, and is connected to the end of the substrate 41 at the top of the heat dissipation channel 3.
  • the bottom end of the lead wire 43 is inserted into the lamp cap 1 through the light-transmissive lampshade 2 and is connected to the driver 11 in the lamp cap 1.
  • the heat dissipation channel 5 is made of the same material as the light-transmitting lampshade 2 and is integrally formed, that is, a through heat dissipation channel is provided in the bulb when the bulb is fired, and the structure of the heat dissipation channel can be various. For example, it is a hollow straight tube as shown in Figure 1-2, or it can be a curved channel or an annular channel.
  • the LED filament 4 is wound on the surface of the heat dissipation channel 5 in the enclosed space 3.
  • the side of the heat dissipation channel 5 communicating with the outside is fixedly provided with a heat sink 6.
  • the air in the light-transmitting lampshade 2 communicates with the outside through the heat dissipation channel 5, and then flows through the heat sink 6 in the heat dissipation channel 5 for heat dissipation.
  • the air convection heats the LED filament 4, and at the same time combines the heat sink 6 to make the heat dissipation effect better.
  • the radiator can be spaced or continuously arranged on the surface of the heat dissipation channel 5; it can also be a hollow cylindrical radiator that is integrally formed and matched with the heat dissipation channel 5.
  • the surface of the radiator 6 is provided with multiple heat dissipation devices.
  • the surface of the fin or the heat dissipation fin is a regular or irregular uneven surface to increase the heat dissipation area.
  • the LED filaments in this embodiment are wound and arranged along the surface of the heat dissipation channel 5, or they may be arranged in parallel on the surface of the heat dissipation channel 5 in the enclosed space, extending horizontally and vertically.
  • the LED filaments can extend straight or obliquely; and the LED filaments can also be arranged crosswise along the surface of the heat dissipation channel, as long as the LED filaments are arranged on the surface of the heat dissipation channel, and those skilled in the art can also understand that it can be directly
  • An LED light-emitting element is arranged on the surface of the heat dissipation channel 5, and the LED light-emitting element is electrically connected through a connecting wire on the surface of the heat dissipation channel 5, and the substrate in the LED filament is omitted.
  • the second embodiment of the present invention As shown in Figures 3 and 4, it is the second embodiment of the present invention.
  • the other structure is the same as that of the first embodiment.
  • the connecting piece 7 is connected to the lamp cap 1.
  • the bottom end of the light-transmitting lampshade 1 is directly connected to the lamp holder 1, that is to say, one end of the heat dissipation channel 5 is directly connected to the lamp holder 1 without communicating with the outside.
  • the position of the heat dissipation channel 5 is provided with an exhaust pipe 8.
  • One end of the exhaust pipe 8 is connected to the outside of the heat dissipation channel 5, and the other end is connected to the enclosed space 3, which is used when making a light bulb.
  • the enclosed space 3 can be evacuated and filled with gas conducive to heat dissipation as required. After the bulb is manufactured, the exhaust pipe 8 can be sealed.
  • the light-transmitting lampshade 2 is a hollow cylindrical structure, and a channel extending in the same direction as the hollow cylindrical structure is provided therein.
  • the two ends of the heat dissipation channel 5 and the heat dissipation channel 5 are welded to each other with the light-transmitting lampshade 2, that is, a closed closed space 3 is formed in the light-transmitting lampshade 2.
  • An exhaust pipe 8 is provided on the heat dissipation channel 5, one end of the exhaust pipe 8 is connected to the outside of the heat dissipation channel 5, and the other end is connected to the enclosed space 3, which is used to draw a vacuum from the enclosed space 3 when the bulb is made.
  • the exhaust pipe 8 can be sealed.
  • Such a structure of the light-transmitting lampshade 2 can be arranged in various shapes.
  • the light-transmitting lampshade can be open at least at one end or both ends.
  • an LED filament 4 is wound on the surface of the heat dissipation channel 5.
  • it provides a variety of different structures and shapes of bulbs, as well as omnidirectional and multi-angle lighting.
  • the light-transmitting lampshade in this embodiment can be connected to the lamp cap at one end and open at the other end; or the two ends can be connected to the connecting heads respectively. Connect to form a long lampshade form.
  • FIG. 6 it is the fourth embodiment of the present invention.
  • the same as the previous three embodiments it includes a lamp cap 1, and a light-transmitting lamp shade 2 connected to the lamp cap 1, and the lamp cap 1 is provided with The driver, the positive and negative lead wires of the driver are connected to the lamp cap, and the lamp cap 1 is electrically connected to the outside through the thread at the bottom.
  • the light-transmitting lampshade 2 has a closed space 3 in which an LED filament 4 is arranged.
  • the center of the light-transmitting lampshade 2 is provided with four through channels, namely four heat dissipation channels 5, The two ends are connected to the outside respectively.
  • the heat dissipation channel 5 is the middle one, which is located in the center of the light-transmitting lampshade 2 and extends up and down.
  • the other three heat dissipation channels 5 are evenly distributed in the light-transmitting lampshade around the middle 2 on, and set for bending.
  • the LED filament 4 is spirally wound on the surface of the heat dissipation channel 5 in the enclosed space 3, and extends spirally along the heat dissipation channel 5, so that multi-angle and omnidirectional lighting can be provided.
  • the light-transmitting lampshade 2 is a ring-shaped enclosed space, and the bottom end of the lampshade 2 is directly inserted and connected to the lamp holder 1.
  • the LED filament 4 includes a substrate and an LED light-emitting element provided on the substrate.
  • the substrate may be a transparent material such as glass, ceramic, plastic, or an opaque material such as metal, and the surface of the LED light-emitting element is provided on the substrate. It is coated with phosphor layer, transparent protective glue, light diffusion, or reflective layer, etc.
  • LED light-emitting elements can be LED chips, surface-mounted light-emitting diodes (SMD LEDs), or LED light-emitting elements formed directly on a substrate through processes such as powder coating, die bonding, and wire bonding. Many forms.
  • SMD LEDs surface-mounted light-emitting diodes
  • the two leads 43 are connected to the driver 11 respectively.
  • the lead wire 43 passes through the light-transmissive lampshade 2 and is electrically connected to the driver 11 in the lamp holder 1.
  • the two lead wires are respectively connected to the connecting ring 44 arranged on the surface of the heat dissipation channel, and are connected to the two ends of the LED filament 4 through the connecting ring 44.
  • the connecting ring 44 is the upper and the lower one of the heat dissipation channel and is respectively connected to the LED The upper and lower ends of the filament 4. As shown in FIG.
  • one lead 43 is connected to the end of the substrate 41 at the bottom of the light-transmitting lampshade 2, and the other extends to the top of the heat dissipation channel 5, and is connected to the end of the substrate 41 at the top of the heat dissipation channel 3.
  • the bottom end of the lead wire 43 is inserted into the lamp cap 1 through the light-transmissive lampshade 2 and is connected to the driver 11 in the lamp cap 1.
  • the enclosed space can also be divided into a plurality of independent enclosed spaces, and the plurality of independent enclosed spaces are separated by a plurality of heat dissipation channels, or there may be only one enclosed space within the enclosed space. There are multiple heat dissipation channels.
  • the above-mentioned omnidirectional light emitting LED lampshade and the bulb with the lampshade provide a heat dissipation channel to dissipate the LED light-emitting elements in the bulb, and the LED light-emitting elements are located in a closed space and can be filled with gas to protect and enhance the LED light-emitting elements Brighten and improve the luminous effect.
  • the lampshade can be connected in multiples to form a desired shape.
  • the lampshade and the bulb can facilitate the arrangement of LED light-emitting elements that emit light in multiple directions and angles, so that the light-emitting angle is more omnidirectional and three-dimensional.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

一种全方位出光灯罩及具有该灯罩的灯泡，包括透光灯罩，所述透光灯罩内具有封闭空间，所述透光灯罩内设有至少一贯穿的散热通道，所述散热通道的两端分别与外界连通，至少一条LED灯丝设于所述封闭空间内，设于所述至少部分散热通道位于所述封闭空间内的表面上。该透光灯罩以及具有该灯罩的灯泡，既能实现360度全方位的照明，发光角度大、发光效率高，而且散热性能好，提高了LED灯的使用寿命，而且该LED灯的透光罩，可以根据需要组合成各种不同长度、不同形状的灯罩，不但加工方便，更加拓展了该LED灯的适用范围。

Description

一种全方位出光灯罩及具有该灯罩的灯泡 技术领域
本发明涉及一种灯罩及灯，特别是涉及一种全方位出光的灯罩及具有该灯罩的灯泡。
背景技术
近年来，随着LED技术的不断发展，照明用LED灯具的各种性能有了很大的提高。LED灯具具有寿命长、发光效率高、没有紫外辐射、节能效果好等一系列的优点，成为未来光源的发展趋势。
但是LED光源具有方向性，不像白炽灯等一样可以做到360度发光，因此，当采用LED作为光源来取代传统的白炽灯或其他光源时，其发光效果受到一定的限制。特别是将LED制成传统的灯管形状的日光灯时，如中国专利CN102022651A所公开的“LED日光灯”包括灯罩、LED光源组件、LED驱动组件、两端盖以及散热外壳，灯罩与散热外壳连接，两端盖分别扣合于所述灯罩和所述散热外壳连接后的两端，灯罩和散热外壳的横截面均呈弧形，且灯罩和所述散热外壳形成一腔体，所述LED光源组件和所述LED驱动组件位于所述腔体内。该种LED日光灯，为了而满足LED的散热需求，所以只能将LED设置成一平面，因此，虽然其外形具有日光灯的长直筒形状，但是其发光面积仅仅只有180度，即从一平面开始发光，并不能做到360度全方位发光。因此，现今的LED灯中，散热面积与发光面积是相互矛盾的，因此，现有的LED日光灯，都不能做到在满足散热需求的情况下的360度全方位发光。
发明内容
本发明所要解决的技术问题是提供一种既具有较好的散热性能，又能满足全 方位发光的灯罩及具有该灯罩的灯泡。
本发明解决上述技术问题所采用的技术方案为：一种全方位出光灯罩，包括透光灯罩，所述透光灯罩内具有封闭空间，所述透光灯罩内设有至少一个贯穿的散热通道，所述散热通道的两端分别与外界连通，至少一条LED灯丝设于所述封闭空间内，设于所述至少部分散热通道位于所述封闭空间内的表面上。
优选地，所述散热通道与外界连通的一侧上固定设有散热器。
优选地，所述透光灯罩在散热通道的位置设有一排气管，所述排气管的一端连接至散热通道的外界，另一端连通至封闭空间，所述排气管用于在灯泡制作时向封闭空间内充入气体或者抽真空，灯泡制作完成后对该排气管进行密封。
优选地，所述透光灯罩为一中空筒形结构，其内设有与该中空筒形结构间隔同向延伸的散热通道，所述散热通道的两端与透光灯罩相互熔接即形成所述封闭空间。
优选地，所述透光灯罩的一端连接灯头，另一端连接连接头，或者两端均连接连接头，所述连接头的两端可以分别连接所述两个透光灯罩。
优选地，所述透光灯罩内的散热通道为至少两条，并且至少一条散热通道位于封闭空间内的表面上设有所述LED灯丝。
优选地，所述散热通道为四条，一条位于灯罩中心上下竖直延伸，另外三条分别均匀设于灯罩的周边上下延伸，并且另外三条散热通道弯曲延伸。
优选地，所述LED灯丝缠绕在散热通道表面，或者所述LED灯丝沿着散热通道的表面间隔排布或者交叉排布。
一种具有上述全方位出光灯罩的灯泡，包括灯头，所述灯头内设有驱动器，其特征在于：所述透光灯罩的一端固定连接至所述灯头，所述LED灯丝通过引线穿过所述透光灯罩连接至灯头内的驱动器。
优选地，所述透光灯罩的一端连接至一连接件，并且通过所述连接件)连接至所述灯头，所述连接件的周面上设有多个通气孔，所述通气孔连通所述散热通道和外界。
与现有技术相比，本发明的优点在于该透光灯罩以及具有该灯罩的灯泡，既 能实现360度全方位的照明，发光角度大、发光效率高，而且散热性能好，提高了LED灯的使用寿命，而且该LED灯的透光罩，可以根据需要组合成各种不同长度、不同形状的灯罩，不但加工方便，更加拓展了该LED灯的适用范围。
附图说明
图1为本发明第一实施例的LED灯泡的立体示意图。
图2为本发明第一实施例的LED灯泡的部件分解图。
图3为本发明第二实施例的LED灯泡的立体示意图。
图4为本发明第二实施例的LED灯泡的部件剖视分解图。
图5为本发明第三实施例的LED灯泡的剖视图。
图6为本发明第四实施例的LED灯泡的示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
如图1-2所示，本发明的第一实施例的灯泡，包括灯头1，以及与灯头1连接的透光灯罩2，所述灯头1内设有驱动器11，驱动器11的正负极引出线连接在灯头上，灯头1通过底部的螺纹与外界的电连接。
所述透光灯罩2内具有封闭空间3，该封闭空间3内，设有LED灯丝4，该透光灯罩2的中心设有至少一个贯穿的通道，该通道即为散热通道5，散热通道5的两端分别与外界连通，如图1-2所示，该散热通道5为一个，位于透光灯罩2的中心，上下延伸，封闭空间3为沿散热通道5的环形空间。LED灯丝4螺旋缠绕位于所述散热通道5位于封闭空间3内的表面上，沿着散热通道5螺旋延伸，因此，可以提供多角度全方位的照明。该实施例中，透光灯罩2为一环形的密闭空间，其底端直接插入连接至灯头1。
该LED灯丝4包括基板以及设于基板上的LED发光元件，上述基板可以是玻璃、陶瓷、塑料等透明材料，也可以是金属等不透明的材料，而且该基板上设有的LED发光元件的面上涂覆有荧光粉层，或透明保护胶，或光扩散、反射层等等。
上述LED发光元件，可以是LED芯片，也可以是表面贴装发光二极管(SMD LED)，或者也可以是通过涂粉、固晶、焊线等工序直接在基板上形成的LED发光元件，可以是多种形式。
基板的两端连接有引线43，并且通过引线43连接至驱动器11。引线43穿过透光灯罩2与灯头1内的驱动器11电连接。
基板的两端连接有引线43，并且通过引线43连接至驱动器11。基板上预设有电连接线路，电连接引线43以及LED发光元件，进而给LED发光元件供电。也可以是电线与LED发光元件以及引线43连接后固定连接至基板上并且予以封装。如图3所示，该引线43具有两条，一条连接至基板41位于透光灯罩2底部的一端，另一条延伸至散热通道3的顶部，与基板位于散热通道3的顶部的一端连接。引线43的底端穿过所述透光灯罩2插入至所述灯头1内，并且与灯头1内的驱动器11连接。
该散热通道5与透光灯罩2同样材质，并且一体成型，即灯泡在烧制时就在其内设置贯通的散热通道，该散热通道的结构可以是多种多样。例如是如图1-2所示的中空直筒状，也可以是弯曲的通道或者环形的通道等等。散热通道5位于封闭空 间3内的表面上缠绕设有LED灯丝4即可。
该实施例中，散热通道5与外界连通的一面上，即散热通道5的内侧，固定设有散热器6。透光灯罩2内的空气通过散热通道5与外界连通，并且再散热通道5内，流过散热器6进行散热，空气对流对LED灯丝4进行散热，并且同时结合散热器6，使得散热的效果更好。散热器可以在散热通道5的表面上间隔或者连续设置有多个；也可以是整个一体成型，与散热通道5相匹配的中空圆筒形的散热器，散热器6的表面设有多个散热鳍，或者散热鳍的表面为规则或不规则凹凸表面，以增加散热面积。
并且，本领域技术人员可以了解到，该实施例中的LED灯丝沿散热通道5的表面缠绕设置，也可以是在该散热通道5位于封闭空间内的表面上间隔平行排布，水平延伸、竖直延伸或者倾斜延伸均可；而且所述LED灯丝也可沿着散热通道的表面交叉排布，只要是在散热通道的表面设置LED灯丝即可，并且本领域技术人员也可以了解到，可以直接在该散热通道5的表面设置LED发光元件，通过散热通道5表面上的连接线电连接LED发光元件，而省略LED灯丝中的基板。
如图3、4所示，为本发明的第二实施例，该实施例中，其他结构与实施例一相同，不同的是，该透光灯罩2的底端连接一连接件7，并且通过所述连接件7连接至灯头1。实施例一中，透光灯罩1的底端直接连接灯头1，也就是说该散热通道5的一端直接连至灯头1而不与外界连通，而该实施例中，透光灯罩1的底端连接至连接件7，连接件7的底端连接至灯头1，并且，连接件7的周面上可以设置多个通气孔71，通气孔71与透光灯罩1内的散热通道5连通，进而使得散热通道5的另一端也连通至外界。形成更强的烟囱效应。更利于空气流通对流散热。
并且，该实施例中，散热通道5的位置，设有排气管8，该排气管8的一端连接至散热通道5的外界，另一端连通至封闭空间3，用于在制作灯泡时，可按需从封闭空间3内抽真空以及充入利于散热的气体等。在灯泡制作完成后，对排气管8进行密封即可。
如图5所示，为本发明的第三实施例，该实施例中，该透光灯罩2为一中空筒形的结构，其内设有一与中空筒形结构同向间隔延伸的通道即为所述散热通道5， 散热通道5的两端与透光灯罩2相互熔接，即在透光灯罩2内形成密闭的封闭空间3。该散热通道5上设有排气管8，该排气管8的一端连接至散热通道5的外界，另一端连通至封闭空间3，用于在制作灯泡时，从封闭空间3内抽真空以及充入利于散热的气体等。在灯泡制作完成后，对排气管8进行密封即可。这样的透光灯罩2结构，可以设置成各种形状，例如透光灯罩可以是至少一端开口，也可以两端都开口，散热通道5的两端与透光灯罩的内表面分别熔接，进而形成密闭的封闭空间3以及与外界连通的散热通道5。封闭空间3内，散热通道5的表面上，缠绕设置有LED灯丝4。进而提供各种不同结构、形状的灯泡，以及全方位多角度的照明。
该实施例中的透光灯罩，可以一端连接灯头，一端敞开；或者两端分别连接连接头，连接头可以为两端分别连接透光灯罩的结构，以此，将该透光灯罩多个相互连接，形成长条的灯罩形式。
如图6所示，为本发明的第四实施例，该实施例中，与前三个实施例相同，包括灯头1，以及与灯头1连接的透光灯罩2，所述灯头1内设有驱动器，驱动器的正负极引出线连接在灯头上，灯头1通过底部的螺纹与外界的电连接。
所述透光灯罩2内具有封闭空间3，该封闭空间3内，设有LED灯丝4，该透光灯罩2的中心设有四个贯穿的通道，即四个散热通道5，散热通道5的两端分别与外界连通，如图1-2所示，该散热通道5为中间一个，位于透光灯罩2的中心，上下延伸，另外三个分别围绕中间的散热通道5均匀分布在透光灯罩2上，并且为弯曲设置。LED灯丝4螺旋缠绕位于所述散热通道5位于封闭空间3内的表面上，沿着散热通道5螺旋延伸，因此，可以提供多角度全方位的照明。该实施例中，透光灯罩2为一环形的密闭空间，其底端直接插入连接至灯头1。该实施例中，LED灯丝为两条，并列缠绕于中心的散热通道的表面上。
该LED灯丝4包括基板以及设于基板上的LED发光元件，上述基板可以是玻璃、陶瓷、塑料等透明材料，也可以是金属等不透明的材料，而且该基板上设有的LED发光元件的面上涂覆有荧光粉层，透明保护胶，光扩散，或反射层等等。
上述LED发光元件，可以是LED芯片，也可以是表面贴装发光二极管(SMD LED)，或者也可以是通过涂粉、固晶、焊线等工序直接在基板上形成的LED发 光元件，可以是多种形式。
所述引线43有两条，分别连接至驱动器11。引线43穿过透光灯罩2与灯头1内的驱动器11电连接。两条引线分别连接至绕设在散热通道的表面上的连接环44，并且通过该连接环44连接至LED灯丝4的两端，连接环44为散热通道的上、下各一个，分别连接LED灯丝4的上端和下端。如图6所示，该引线43一条连接至基板41位于透光灯罩2底部的一端，另一条延伸至散热通道5的顶部，与基板位于散热通道3的顶部的一端连接。引线43的底端穿过所述透光灯罩2插入至所述灯头1内，并且与灯头1内的驱动器11连接。
并且本领域技术人员也可以了解到，该实施例中，仅有一个散热通道5的表面上缠绕有LED灯丝，也可以是至少部分散热通道5的表面上缠绕有LED灯丝4，或者是所有的散热通道5的表面上均缠绕有LED灯丝。
并且，本领域技术人员可以了解到，该封闭空间也可以分为多个独立的封闭空间，多个独立的封闭空间通过多个散热通道予以隔开，或者也可以只有一个封闭空间，封闭空间内设有多个散热通道。
上述全方位出光LED灯罩和具有该灯罩的灯泡，提供散热通道能够对灯泡内的LED发光元件进行散热，并且，LED发光元件位于封闭的空间内，可以充入气体对LED发光元件加以保护和增强光亮和改善发光效果。另外，该灯罩可以多个连接，以组成需要的形状。并且该灯罩和灯泡能够便于布置向多个方向角度发光的LED发光元件，使得发光角度更加全方位和立体。
尽管以上详细地描述了本发明的优选实施例，但是应该清楚地理解，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种全方位出光灯罩，包括透光灯罩(2)，所述透光灯罩(2)内具有封闭空间(3)，所述透光灯罩(2)内设有至少一个贯穿的散热通道(5)，所述散热通道(5)的两端分别与外界连通，至少一条LED灯丝(4)设于所述封闭空间(3)内，设于至少部分散热通道(5)位于所述封闭空间(3)内的表面上。
  2. 如权利要求1所述的全方位出光灯罩，其特征在于：所述散热通道(5)与外界连通的一侧上固定设有散热器(6)。
  3. 如权利要求1所述的全方位出光灯罩，其特征在于：所述透光灯罩(2)在散热通道(5)的位置设有一排气管(8)，所述排气管(8)的一端连接至散热通道的外界，另一端连通至封闭空间(3)，所述排气管(8)用于在灯泡制作时向封闭空间(3)内充入气体或者抽真空，灯泡制作完成后对该排气管(8)进行密封。
  4. 如权利要求1-3中任一项所述的全方位出光灯罩，其特征在于：所述透光灯罩(2)为一中空筒形结构，其内设有与该中空筒形结构间隔同向延伸的散热通道(5)，所述散热通道(5)的两端与透光灯罩(2)相互熔接即形成所述封闭空间(3)。
  5. 如权利要求1-3中任一项所述的全方位出光灯罩，其特征在于：所述透光灯罩(2)的一端连接灯头(1)，另一端连接连接头；或者两端均连接连接头，所述连接头的两端可以分别连接所述两个透光灯罩。
  6. 如权利要求1所述的全方位出光灯罩，其特征在于：所述透光灯罩(2)内的散热通道为至少两条，并且至少一条散热通道位于封闭空间内的表面上设有所述LED灯丝(4)。
  7. 如权利要求6所述的全方位出光灯罩，其特征在于：所述散热通道为四条，一条位于灯罩中心上下竖直延伸，另外三条分别均匀设于灯罩的周边上下延伸，并且另外三条散热通道弯曲延伸。
  8. 如权利要求7所述的全方位出光灯罩，其特征在于：所述LED灯丝缠绕在散 热通道表面，或者所述LED灯丝沿着散热通道的表面间隔排布或者交叉排布。
  9. 一种具有上述权利要求1-4、6-8中任一项所述的全方位出光灯罩的灯泡，包括灯头(1)，所述灯头(1)内设有驱动器(11)，其特征在于：所述透光灯罩(2)的一端固定连接至所述灯头(1)，所述LED灯丝(4)通过引线穿过所述透光灯罩(2)连接至灯头(1)内的驱动器(11)。
  10. 如权利要求9所述的灯泡，其特征在于：所述透光灯罩(2)的一端连接至一连接件(7)，并且通过所述连接件(7)连接至所述灯头(1)，所述连接件(7)的周面上设有多个通气孔(71)，所述通气孔(71)连通所述散热通道(5)和外界。
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