A lamp shade with all-around light emission and a lamp bulb with the lamp shade

Abstract

A kind of all-around light-emitting lampshade and the bulb with the lampshade, including light-transmitting lampshade, the closed space is formed in the light-transmitting lampshade, at least one heat dissipation channel is arranged in the light-transmitting lampshade, and the both ends of the heat dissipation channel are communicated with the outside respectively, at least one LED filament is arranged in the closed space, and is arranged on the surface of at least part of heat dissipation channel located in the closed space.The light-transmitting lampshade and the bulb with the lampshade can realize 360 degrees all-around illumination, have large light-emitting angle, high light-emitting efficiency, and good heat dissipation performance, improve the service life of LED lamp, and the light-transmitting lampshade of the LED lamp can be combined into various different lengths, different shapes of lampshade according to needs, not only processing is convenient, more expand the application range of the LED lamp.

Description

TECHNICAL FIELD

[0001] The present application relates to a lampshade and a lamp, in particular to a lampshade with omnidirectional light emission and a lamp with the lampshade. BACKGROUND

[0002] In recent years, with the continuous development of LED technology, the various performances of LED lamps for lighting have been greatly improved. LED lamps have a series of advantages such as long service life, high luminous efficiency, no ultraviolet radiation, and good energy-saving effect, and have become the development trend of future light sources.

[0003] However, LED light sources have directionality and cannot emit light in 360 degrees like incandescent lamps and the like, so when LED is used as a light source to replace traditional incandescent lamps or other light sources, the light emission effect is limited. In particular, when LED is made into the shape of a traditional fluorescent lamp, such as the LED fluorescent lamp disclosed in Chinese Patent CN102022651A, which includes a lampshade, an LED light source assembly, an LED driving assembly, two end covers, and a heat dissipation shell. The lampshade is connected with the heat dissipation shell, the two end covers are respectively buckled on the two ends of the lampshade and the heat dissipation shell after being connected, the cross sections of the lampshade and the heat dissipation shell are both arc-shaped, and the lampshade and the heat dissipation shell form a cavity, and the LED light source assembly and the LED driving assembly are located in the cavity. The LED fluorescent lamp can only arrange the LED into a plane in order to meet the heat dissipation requirements of the LED, so although the shape of the LED fluorescent lamp has the long straight cylindrical shape of a fluorescent lamp, the light emission area is only 180 degrees, i.e. the light is emitted from a plane, and cannot be emitted in 360 degrees. Therefore, in the current LED lamps, the heat dissipation area and the light emission area are contradictory, so the existing LED fluorescent lamps cannot emit light in 360 degrees under the condition of meeting the heat dissipation requirements. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a lampshade with good heat dissipation performance and omnidirectional light emission and a lamp with the lampshade.

[0005] The technical solution adopted by the present application to solve the above technical problem is as follows: an omnidirectional light emission lampshade, comprising a light-transmitting lampshade, the light-transmitting lampshade has a closed space inside, at least one heat dissipation channel is arranged in the light-transmitting lampshade and penetrates through the light-transmitting lampshade, the two ends of the heat dissipation channel are respectively communicated with the outside, at least one LED filament is arranged in the closed space, and the at least one LED filament is arranged on the surface of the at least part of the heat dissipation channel located in the closed space.

[0006] Preferably, a heat sink is fixedly arranged on the side of the heat dissipation channel communicated with the outside.

[0007] Preferably, the translucent 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 closed space. The exhaust pipe is used to fill gas or vacuum the closed space when the bulb is manufactured, and the exhaust pipe is sealed after the bulb is manufactured.

[0008] Preferably, the translucent lampshade is a hollow cylindrical structure, in which a heat dissipation channel is provided, which extends in the same direction as the hollow cylindrical structure and is spaced apart from the hollow cylindrical structure. Both ends of the heat dissipation channel are welded to the translucent lampshade to form the closed space.

[0009] Preferably, one end of the translucent lampshade is connected to the lamp holder, and the other end is connected to the connector, or both ends are connected to the connector, and the two ends of the connector can be connected to the two translucent lampshades respectively.

[0010] Preferably, there are at least two heat dissipation channels in the light-transmitting lampshade, and the LED filament is provided on the surface of at least one heat dissipation channel located in the closed space.

[0011] Preferably, there are four heat dissipation channels, one of which is located at the center of the lampshade and extends vertically up and down, and the other three are evenly arranged at the periphery of the lampshade and extend up and down, and the other three heat dissipation channels extend in a curved manner.

[0012] Preferably, 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.

[0013] A light bulb having the above-mentioned omnidirectional light-emitting lampshade includes a lamp holder, in which a driver is provided, and is characterized in that one end of the translucent lampshade is fixedly connected to the lamp holder, and the LED filament is connected to the driver in the lamp holder via a lead passing through the translucent lampshade.

[0014] Preferably, one end of the translucent lampshade is connected to a connector and is connected to the lamp holder through the connector. A plurality of ventilation holes are provided on the circumference of the connector, and the ventilation holes connect the heat dissipation channel and the outside world.

[0015] Compared with the prior art, the advantages of the present invention are that the translucent lampshade and the light bulb having the lampshade can achieve 360-degree all-round lighting, a large luminous angle, high luminous efficiency, and good heat dissipation performance, thereby improving the service life of the LED lamp. Moreover, the translucent lampshade of the LED lamp can be combined into lampshades of various lengths and shapes as needed, which is not only convenient to process but also expands the scope of application of the LED lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a perspective schematic diagram of an LED light bulb according to a first embodiment of the present invention.

[0017] Figure 2 FIG. 1 is an exploded view of the LED light bulb according to the first embodiment of the present invention.

[0018] Figure 3 FIG. 4 is a perspective schematic diagram of an LED light bulb according to a second embodiment of the present invention.

[0019] Figure 4 This is an exploded cross-sectional view of the components of an LED light bulb according to a second embodiment of the present invention.

[0020] Figure 5 FIG. 4 is a cross-sectional view of an LED bulb according to a third embodiment of the present invention.

[0021] Figure 6 FIG. 4 is a schematic diagram of an LED light bulb according to a fourth embodiment of the present invention. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and are not to be construed as limiting the present invention.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0024] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] like Figures 1-2 As shown, the light bulb of the first embodiment of the present invention includes a lamp holder 1 and a translucent lampshade 2 connected to the lamp holder 1. A driver 11 is provided in the lamp holder 1, and the positive and negative lead wires of the driver 11 are connected to the lamp holder. The lamp holder 1 is electrically connected to the outside world through a thread at the bottom.

[0026] The light-transmitting lampshade 2 has a closed space 3 in which an LED filament 4 is provided. The center of the light-transmitting lampshade 2 is provided with at least one through-channel, which is a heat dissipation channel 5. Both ends of the heat dissipation channel 5 are connected to the outside world. Figures 1-2 As shown, the heat dissipation channel 5 is a single, annular space located in the center of the translucent lampshade 2 and extending vertically. The enclosed space 3 is an annular space along the heat dissipation channel 5. The LED filament 4 is spirally wound around the surface of the heat dissipation channel 5 within the enclosed space 3, extending along the heat dissipation channel 5. This provides multi-angle and omnidirectional lighting. In this embodiment, the translucent lampshade 2 is an annular, enclosed space, and its bottom end is directly inserted into and connected to the lamp base 1.

[0027] The LED filament 4 includes a substrate and an LED light-emitting element mounted on the substrate. The substrate can be made of transparent materials such as glass, ceramic, or plastic, or opaque materials such as metal. Furthermore, the surface of the LED light-emitting element mounted on the substrate is coated with a phosphor layer, a transparent protective adhesive, or a light diffusion or reflection layer.

[0028] The above-mentioned LED light emitting element can be an LED chip, or a surface mounted light emitting diode (SMD LED), or can be a Coated The LED light-emitting components formed directly on the substrate through processes such as powder, solid crystal, and wire bonding can be in various forms.

[0029] 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 wires 43 pass through the light-transmitting lampshade 2 and are electrically connected to the driver 11 in the lamp holder 1.

[0030] The two ends of the substrate are connected to the lead 43, and are connected to the driver 11 through the lead 43. The substrate is pre-set with an electrical connection line, which electrically connects the lead 43 and the LED light-emitting element, thereby supplying power to the LED light-emitting element. Alternatively, the wires can be connected to the LED light-emitting element and the lead 43 and then fixedly connected to the substrate and packaged. Figure 3 As shown, the lead wires 43 have two ends, one connected to the end of the base plate 41 located at the bottom of the light-transmitting lampshade 2, and the other extending to the top of the heat dissipation channel 3 and connected to the end of the base plate located at the top of the heat dissipation channel 3. The bottom end of the lead wire 43 passes through the light-transmitting lampshade 2 and is inserted into the lamp holder 1, and is connected to the driver 11 in the lamp holder 1.

[0031] The heat dissipation channel 5 is made of the same material as the light-transmitting lampshade 2 and is integrally formed. That is, a heat dissipation channel is provided inside the light bulb when it is fired. The structure of the heat dissipation channel can be various. Figures 1-2 The hollow straight tube shown may also be a curved channel or an annular channel, etc. The heat dissipation channel 5 is located on the surface of the closed space 3 and is wound with the LED filament 4 .

[0032] In this embodiment, a heat sink 6 is fixedly mounted on the side of the heat dissipation channel 5 that communicates with the outside world, i.e., on the inner side of the heat dissipation channel 5. Air within the translucent lampshade 2 communicates with the outside world through the heat dissipation channel 5 and then flows through the heat sink 6 within the heat dissipation channel 5 to dissipate heat. This air convection dissipates heat from the LED filament 4 and, in combination with the heat sink 6, achieves a more effective heat dissipation effect. Multiple heat sinks can be arranged on the surface of the heat dissipation channel 5, either at intervals or continuously. Alternatively, the heat sink can be integrally formed into a hollow cylindrical shape that matches the heat dissipation channel 5. The surface of the heat sink 6 can be provided with multiple cooling fins, or the surface of the cooling fins can have regular or irregular concave and convex surfaces to increase the heat dissipation area.

[0033] Furthermore, those skilled in the art will appreciate that the LED filaments in this embodiment may be wound along the surface of the heat dissipation channel 5, or may be arranged in parallel at intervals on the surface of the heat dissipation channel 5 within the enclosed space, and may extend horizontally, vertically, or obliquely. Furthermore, the LED filaments may also be cross-arranged along the surface of the heat dissipation channel, as long as the LED filaments are provided on the surface of the heat dissipation channel. Furthermore, those skilled in the art will appreciate that the LED light-emitting elements may be directly provided on the surface of the heat dissipation channel 5, and may be electrically connected to the LED light-emitting elements through connecting wires on the surface of the heat dissipation channel 5, while omitting the substrate in the LED filaments.

[0034] like Figure 3 、 4 The figure shows the second embodiment of the present invention. In this embodiment, the other structures are the same as those in the first embodiment, except that the bottom end of the translucent lampshade 2 is connected to a connector 7, and is connected to the lamp holder 1 through the connector 7. In the first embodiment, the bottom end of the translucent lampshade 1 is directly connected to the lamp holder 1, that is, one end of the heat dissipation channel 5 is directly connected to the lamp holder 1 without being connected to the outside world. In this embodiment, the bottom end of the translucent lampshade 1 is connected to the connector 7, and the bottom end of the connector 7 is connected to the lamp holder 1. In addition, a plurality of air vents 71 can be provided on the circumference of the connector 7. The air vents 71 are connected to the heat dissipation channel 5 in the translucent lampshade 1, thereby making the other end of the heat dissipation channel 5 also connected to the outside world. This forms a stronger chimney effect. It is more conducive to air circulation and convection heat dissipation.

[0035] Furthermore, in this embodiment, an exhaust pipe 8 is provided at the location of 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. This exhaust pipe 8 is used to evacuate the enclosed space 3 and fill it with heat-dissipating gas as needed during bulb manufacturing. After the bulb is manufactured, the exhaust pipe 8 can be sealed.

[0036] like Figure 5As shown, it is the third embodiment of the present application, in which the light-transmitting lampshade 2 is a hollow cylindrical structure, which is provided with a channel extending in the same direction as the hollow cylindrical structure, i.e. the heat dissipation channel 5, and the two ends of the heat dissipation channel 5 are fused to the light-transmitting lampshade 2, i.e. forming a closed space 3 in the light-transmitting lampshade 2. The heat dissipation channel 5 is provided with an exhaust pipe 8, one end of which is connected to the outside of the heat dissipation channel 5, and the other end is connected to the closed space 3, for vacuumizing the closed space 3 and filling the gas conducive to heat dissipation during the manufacture of the bulb. After the completion of the bulb, the exhaust pipe 8 is sealed. Such a light-transmitting lampshade 2 structure can be provided in various shapes, for example, the light-transmitting lampshade can be open at least one end, or both ends, and the two ends of the heat dissipation channel 5 are fused to the inner surface of the light-transmitting lampshade, thereby forming a closed space 3 and a heat dissipation channel 5 communicating with the outside. In the closed space 3, the surface of the heat dissipation channel 5 is wound with the LED filament 4. Thus, various structures and shapes of bulbs are provided, as well as omnidirectional multi-angle illumination.

[0037] 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 head respectively, which can be a structure in which the two ends of the connecting head are connected to the light-transmitting lampshade. In this way, the light-transmitting lampshade is connected to each other to form a long lampshade.

[0038] As shown, it is the third embodiment of the present application, in which the light-transmitting lampshade 2 is a hollow cylindrical structure, which is provided with a channel extending in the same direction as the hollow cylindrical structure, i.e. the heat dissipation channel 5, and the two ends of the heat dissipation channel 5 are fused to the light-transmitting lampshade 2, i.e. forming a closed space 3 in the light-transmitting lampshade 2. The heat dissipation channel 5 is provided with an exhaust pipe 8, one end of which is connected to the outside of the heat dissipation channel 5, and the other end is connected to the closed space 3, for vacuumizing the closed space 3 and filling the gas conducive to heat dissipation during the manufacture of the bulb. After the completion of the bulb, the exhaust pipe 8 is sealed. Such a light-transmitting lampshade 2 structure can be provided in various shapes, for example, the light-transmitting lampshade can be open at least one end, or both ends, and the two ends of the heat dissipation channel 5 are fused to the inner surface of the light-transmitting lampshade, thereby forming a closed space 3 and a heat dissipation channel 5 communicating with the outside. In the closed space 3, the surface of the heat dissipation channel 5 is wound with the LED filament 4. Thus, various structures and shapes of bulbs are provided, as well as omnidirectional multi-angle illumination. Figure 6

[0039] The light-transmitting lampshade 2 has a closed space 3, and the closed space 3 is provided with an LED filament 4, and the center of the light-transmitting lampshade 2 is provided with four through channels, i.e. four heat dissipation channels 5, and the two ends of the heat dissipation channel 5 are respectively communicated with the outside, as shown, the middle one of the heat dissipation channels 5 is located at the center of the light-transmitting lampshade 2 and extends upward and downward, and the other three are evenly distributed around the middle heat dissipation channel 5 and are curved. Figures 1-2 The LED filament 4 is spirally wound on the surface of the heat dissipation channel 5 in the closed space 3, and extends along the heat dissipation channel 5, so that omnidirectional multi-angle illumination can be provided. In this embodiment, the light-transmitting lampshade 2 is a closed space in the form of a ring, and the bottom end is directly inserted into the lamp cap 1. In this embodiment, the LED filament is two and is parallelly wound on the surface of the central heat dissipation channel.

[0040] ​The LED filament 4 comprises a substrate and LED light emitting elements arranged on the substrate, the substrate can be transparent material such as glass, ceramic, plastic, etc., or opaque material such as metal, and the surface of the LED light emitting elements arranged on the substrate is coated with a fluorescent powder layer, transparent protective glue, light diffusion, or a reflective layer, etc.

[0041] The LED light emitting elements can be LED chips, surface mounted light emitting diodes (SMD LED), or LED light emitting elements formed on the substrate through powder coating, die bonding, wire bonding, etc., and can be in various forms.

[0042] The lead wire 43 has two, respectively connected to the driver 11. The lead wire 43 passes through the light-transmitting lampshade 2 and is electrically connected to the driver 11 in the lamp cap 1. The two lead wires are respectively connected to the connecting rings 44 wound on the surface of the heat dissipation channel, and are connected to the two ends of the LED filament 4 through the connecting rings 44, and the connecting rings 44 are respectively on the upper and lower of the heat dissipation channel, and are respectively connected to the upper and lower ends of the LED filament 4. As shown in the figure, one of the lead wires 43 is connected to one 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 one end of the substrate at the top of the heat dissipation channel 3. The bottom end of the lead wire 43 passes through the light-transmitting lampshade 2 and is inserted into the lamp cap 1, and is connected to the driver 11 in the lamp cap 1. Figure 6

[0043] And those skilled in the art can also understand that in this embodiment, only the surface of the heat dissipation channel 5 is wound with the LED filament, or at least part of the surface of the heat dissipation channel 5 is wound with the LED filament 4, or all the surfaces of the heat dissipation channel 5 are wound with the LED filament.

[0044] And those skilled in the art can understand that the closed space can also be divided into multiple independent closed spaces, and the multiple independent closed spaces are separated by multiple heat dissipation channels, or there can be only one closed space, and multiple heat dissipation channels are arranged in the closed space.

[0045] The omnidirectional light-emitting LED lampshade and the bulb with the lampshade provide a heat dissipation channel to dissipate heat for the LED light emitting elements in the bulb, and the LED light emitting elements are located in a closed space, which can be filled with gas to protect and enhance the light and improve the light-emitting effect. In addition, the lampshade can be connected in multiple to form the required shape. And the lampshade and the bulb can facilitate the arrangement of LED light emitting elements emitting light in multiple directions, making the light-emitting angle more omnidirectional and three-dimensional.

[0046] ​While the preferred embodiments of the application have been described above in detail, it is to be understood that various modifications and alterations to the preferred embodiments will occur to persons skilled in the art. Any such modifications or alterations are intended to fall within the scope of the application.

Claims

1. A lampshade with omnidirectional light output, comprising a light-transmitting lampshade (2), characterized in that: The translucent lampshade (2) has a closed space (3) therein, a heat dissipation channel (5) is provided through the translucent lampshade (2), both ends of the heat dissipation channel (5) are respectively connected to the outside world, and at least one LED filament (4) is provided in the closed space (3) and is provided on a surface where at least part of the heat dissipation channel (5) is located in the closed space (3); There are four heat dissipation channels, one of which is located at the center of the lampshade and extends vertically up and down, and the other three are evenly arranged at the periphery of the lampshade and extend up and down, and the other three heat dissipation channels extend in a curved manner; and the LED filament (4) is provided on the surface of at least one heat dissipation channel located in the closed space.

2. The omnidirectional light-emitting lampshade according to claim 1, characterized in that: A radiator (6) is fixedly provided on one side of the heat dissipation channel (5) communicating with the outside world.

3. The omnidirectional light-emitting lampshade according to claim 1, characterized in that: The translucent lampshade (2) is provided with an exhaust pipe (8) at the position of the heat dissipation channel (5); one end of the exhaust pipe (8) is connected to the outside of the heat dissipation channel, and the other end is connected to the closed space (3); the exhaust pipe (8) is used to fill gas or evacuate the closed space (3) when the bulb is manufactured, and the exhaust pipe (8) is sealed after the bulb is manufactured.

4. The omnidirectional light-emitting lampshade according to any one of claims 1 to 3, characterized in that: The translucent lampshade (2) is a hollow cylindrical structure, in which a heat dissipation channel (5) is provided, which extends in the same direction as the hollow cylindrical structure and is spaced apart from the hollow cylindrical structure. The two ends of the heat dissipation channel (5) are welded to the translucent lampshade (2) to form the closed space (3).

5. The omnidirectional light-emitting lampshade according to any one of claims 1 to 3, characterized in that: One end of the light-transmitting lampshade (2) is connected to the lamp holder (1), and the other end is connected to the connector; or both ends are connected to the connector, and the two ends of the connector are respectively connected to the two light-transmitting lampshades.

6. The omnidirectional light-emitting lampshade according to claim 1, characterized in that: 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.

7. A light bulb having an omnidirectional light-emitting lampshade according to any one of claims 1 to 4 and 6, comprising a lamp holder (1), wherein a driver (11) is provided in the lamp holder (1), and characterized in that: One end of the translucent lampshade (2) is fixedly connected to the lamp holder (1), and the LED filament (4) is connected to the driver (11) in the lamp holder (1) via a lead wire passing through the translucent lampshade (2).

8. The light bulb according to claim 7, wherein: One end of the light-transmitting lampshade (2) is connected to a connecting piece (7), and is connected to the lamp holder (1) via the connecting piece (7). A plurality of vent holes (71) are provided on the peripheral surface of the connecting piece (7), and the vent holes (71) communicate with the heat dissipation channel (5) and the outside world.

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