LED lamp

Abstract

The utility model provides an LED lamp which comprises a lamp body, a light source and a light guide body, the lamp body comprises a base and a lampshade, and the light source and the light guide body are arranged in the lamp body. The light emitted by the lamp beads of the light source can enter the light guide body from the light inlet part of the light guide body, is transmitted in the light guide body and is emitted out from the light outlet surface formed on the peripheral side surface of the light guide body, so that the light can be transmitted in multiple directions, and a point light source or a surface light source formed by the lamp beads can be converted into a three-dimensional light emitting effect; according to the LED lamp, light diffusion is achieved, the light is distributed in a larger space range, illumination of the LED lamp is more uniform, and the illumination effect of the LED lamp is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of light-emitting device technology, and in particular to an LED lamp. Background Technology

[0002] Tungsten filament lamps are commonly used as lighting sources in the market. These lamps heat the filament to incandescence by passing an electric current through it, emitting visible light through thermal radiation. While tungsten filament lamps are highly automated in production and have a wide beam angle, they suffer from drawbacks such as high heat generation, high power consumption, low luminous efficacy, and short lifespan.

[0003] Currently, to overcome the shortcomings of tungsten filament lamps, existing technologies use LED light sources to replace them. Specifically, LED light sources involve mounting LEDs on a substrate, which is then attached to a heat sink to achieve both light emission and heat dissipation.

[0004] While LED light sources can solve the problems of high heat generation, high power consumption, low luminous efficiency, and short lifespan of tungsten filament lamps, their light output is usually a single planar or point-like output, with a small overall light-emitting angle. This limits the light-emitting angle of the entire light source, resulting in poor lighting effects and affecting effective use by users. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem that in the prior art, LED light sources typically emit light in a single planar or point-like manner, resulting in a small overall light emission angle, limited light emission angle of the entire light source, poor lighting effect, and impaired effective use by users.

[0006] To solve the above-mentioned technical problems, this utility model provides an LED lamp, which includes:

[0007] The lamp body includes a base and a lampshade disposed on the base, the lampshade and the base enclosing an installation space; the lampshade is light-transmitting, and the base is used for electrical connection with an external lamp holder;

[0008] A light source is disposed in the installation space and fixed on the base; the light source includes a lamp board and lamp beads disposed on the lamp board, the lamp board is electrically connected to the base, and the lamp beads are disposed on the surface of the lamp board facing away from the base;

[0009] A light guide is disposed in the installation space and arranged corresponding to the light source; the light guide has a light-incident portion, which is disposed facing the light source; the light emitted by the lamp bead can enter the light guide through the light-incident portion, and propagate inside the light guide and be emitted from the light-exiting surface formed on the outer peripheral surface of the light guide, thereby being emitted into the external environment through the lamp cover.

[0010] In some embodiments of this application, the interior of the light guide body is hollow to form a light guide cavity, and one end of the light guide body is provided with a light guide port communicating with the light guide cavity; the end of the light guide body with the light guide port is connected to the base and is positioned towards the lamp bead; the lamp bead is housed in the light guide cavity, and the light guide body forms the light incident part corresponding to the inner surface of the light guide cavity.

[0011] In some embodiments of this application, the light guide includes a base portion and an extension portion. The base portion is a cylindrical structure with openings at both ends and a hollow interior. One end of the base portion forms the light guide port, and the opening of the base portion away from the light guide port is a connection port.

[0012] The extension is a groove-shaped structure with one end closed and the other end open, and the opening of the extension is a mating interface; the end of the base portion with the connection port is connected to the end of the extension portion with the mating interface, so that the interior of the base portion and the interior of the extension portion are connected to form the light guide cavity.

[0013] The outer peripheral side of the extension extends outward beyond the outer peripheral side of the base portion, and the outer peripheral side of the extension portion is in an outwardly expanding arc shape.

[0014] In some embodiments of this application, the outer surface of the extension portion away from the interface is an arc-shaped surface, and the outer surface of the connection between the base portion and the extension portion has an arc-shaped transition.

[0015] In some embodiments of this application, the wall thickness of the base portion of the cylindrical structure gradually increases in the direction from the light guide port to the connection port.

[0016] In some embodiments of this application, the light guide is one of a cylindrical structure, a spherical structure, a hemispherical structure, or a diamond-shaped structure.

[0017] In some embodiments of this application, the base includes an adapter and a seat member detachably disposed on the adapter, the adapter being used for electrical connection with an external lamp holder, and the light source being disposed on the seat member;

[0018] The LED lamp further includes a first electrical connector disposed on the base and a second electrical connector disposed on the adapter. The first electrical connector is electrically connected to the lamp board of the light source. The base and the adapter are detachably connected, and the first electrical connector and the second electrical connector are mated to form an electrical connection.

[0019] In some embodiments of this application, the LED lamp further includes a first magnetic component and a second magnetic component capable of magnetic attraction, wherein the first magnetic component is disposed on the base component and the second magnetic component is disposed on the adapter component;

[0020] The first magnetic component and the second magnetic component are magnetically attracted to each other, making the base component and the adapter component detachably connected.

[0021] In some embodiments of this application, the base further includes a snap-fit ​​member, which is fixed to the base body; the snap-fit ​​member is annular, and the inner wall of the snap-fit ​​member has a snap-fit ​​portion; the edge of the lampshade at the connection point with the base has a mating portion, which is adapted to mate with the snap-fit ​​portion, so that the lampshade is fixed to the base.

[0022] In some embodiments of this application, the lampshade is a light diffuser; and / or, the lampshade is a flexible and foldable structure to form a variety of different folding shapes, and the light emitted by the lamp beads can pass through the light guide and the lampshade with different folding shapes to form different light effects.

[0023] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: The LED lamp of this utility model includes a lamp body, a light source, and a light guide. The lamp body includes a base and a lampshade, and the light source and the light guide are disposed inside the lamp body. The light emitted by the LED beads of the light source can enter the light guide through the light-incident part of the light guide, and propagate inside the light guide before being emitted from the light-out surface formed on the outer peripheral side of the light guide. This allows the light to propagate in multiple directions, transforming the point light source or surface light source formed by the LED beads into a three-dimensional light-emitting effect, achieving light diffusion, distributing the light over a larger spatial range, making the illumination of the LED lamp more uniform, and effectively improving the lighting effect of the LED lamp. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of an embodiment of the LED lamp of this utility model.

[0025] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the LED light fixture.

[0026] Figure 3 yes Figure 1 The exploded view of the LED light fixture shown.

[0027] Figure 4 This is a structural schematic diagram of another embodiment of the LED lamp of this utility model.

[0028] The reference numerals in the attached drawings are explained as follows: 100, LED lamp; 10, lamp body; 101, installation space; 11, base; 111, adapter; 1111, metal contact; 1112, metal interface; 112, base component; 113, snap-fit ​​component; 1131, snap-fit ​​part; 12, lampshade; 121, receiving opening; 122, mating part; 123, crease line; 20, light source; 21, lamp board; 22, LED beads; 30, light guide; 301, light input part; 302, light output surface; 303, light guide cavity; 304, light guide opening; 31, base part; 32, extension part; 41, first magnetic component; 42, second magnetic component; 51, first electrical connector; 52, second electrical connector; 60, adjustment component. Detailed Implementation

[0029] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0030] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0031] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] See Figures 1 to 3 One embodiment of this application provides an LED lamp 100, which includes a lamp body 10, a light source 20, and a light guide 30.

[0033] The lamp body 10 includes a base 11 and a lampshade 12 mounted on the base 11. The lampshade 12 and the base 11 enclose an installation space 101. The lampshade 12 is light-transmitting, and the base 11 is used for electrical connection with an external lamp holder. The light source 20 is disposed in the installation space 101 and fixed on the base 11. The light source 20 includes a lamp plate 21 and LED beads 22 mounted on the lamp plate 21. The lamp plate 21 is electrically connected to the base 11, and the LED beads 22 are disposed on the surface of the lamp plate 21 facing away from the base 11. A light guide 30 is disposed in the installation space 101 and arranged corresponding to the light source 20. The light guide 30 has a light-incident portion 301, which faces the light source 20.

[0034] The light emitted by the LED bead 22 can enter the light guide 30 through the light entrance 301, propagate inside the light guide 30, and be emitted from the light exiting surface 302 formed on the outer peripheral surface of the light guide 30, thereby passing through the lamp cover 12 and being projected into the external environment.

[0035] For the LED lamp 100 of this application, the light emitted by the lamp bead 22 can enter the light guide 30 through the light entrance part 301 of the light guide 30, and propagate inside the light guide 30 before being emitted from the light exit surface 302 formed on the outer peripheral side of the light guide 30. This allows the light to propagate in multiple directions, so that the point light source 20 or surface light source 20 formed by the lamp bead 22 can be converted into a three-dimensional light emission effect, thereby achieving light diffusion and distributing the light over a larger spatial range. This makes the illumination of the LED lamp 100 more uniform and effectively improves the lighting effect of the LED lamp 100.

[0036] In some embodiments of this application, the lamp body 10 includes a base 11 and a lampshade 12 disposed on the base 11, wherein the lampshade 12 and the base 11 can enclose an installation space 101. The light source 20 is disposed in the installation space 101, and the lampshade 12 can protect the light source 20.

[0037] The lampshade 12 has a pear-shaped outer contour to give the LED lamp 100 the appearance of a conventional light bulb, thus expanding its adaptability. In other embodiments, the outer contour of the lampshade 12 can also be set to a circle, ellipse, mushroom shape, spiral shape, sphere, cylinder, etc., to meet different usage requirements.

[0038] The lampshade 12 is designed to allow light to pass through. The lampshade 12 can be a glass shell, such as made of silicate glass or quartz glass.

[0039] In some embodiments of this application, the base 11 includes an adapter 111 and a seat member 112 detachably disposed on the adapter 111. The adapter 111 is used for electrical connection with an external lamp holder, and the light source 20 is disposed on the seat member 112.

[0040] In some examples, the adapter 111 is cylindrical in shape and can be electrically connected to an external lamp holder that is powered by mains electricity to enable electrical connection of the LED lamp 100. The external lamp holder can be a table lamp holder, a chandelier holder, etc.

[0041] In this example, one end of the adapter 111 is provided with a metal contact 1111 for connecting to an external AC live wire. The outer wall of the adapter 111 is also provided with a metal interface 1112 for connecting to an external AC neutral wire. The metal interface 1112 of the adapter 111 can be a threaded interface, allowing the adapter 111 to be screwed and fixed to an external lamp holder via the metal interface 1112.

[0042] In other examples, the interface of the adapter 111 for connecting to the external AC neutral wire can also be a bayonet structure, so that the adapter 111 can be snapped and fixed to the external lamp holder through the bayonet structure.

[0043] In some embodiments of this application, the light source 20 includes a lamp board 21 and lamp beads 22 disposed on the lamp board 21. The lamp board 21 is fixed to the surface of the base member 112, and the lamp beads 22 are disposed on the surface of the lamp board 21 facing away from the base member 112. There may be one or more lamp beads 22, and the multiple lamp beads 22 may be arranged at intervals on the surface of the lamp board 21.

[0044] In this example, the LED lamp 100 also includes a first magnetic element 41 and a second magnetic element 42 that can be magnetically attracted. The first magnetic element 41 is disposed on the base 112 and the second magnetic element 42 is disposed on the adapter 111.

[0045] The first magnetic element 41 may be annular and is disposed on the surface of the base 112 facing away from the light source 20. The surface of the base 112 may be provided with a mounting groove, and the first magnetic element 41 is disposed in the mounting groove, with the surface of the first magnetic element 41 being flush with the surface of the base 112 where the mounting groove is provided.

[0046] The second magnetic element 42 may be annular and is disposed on the surface of the adapter 111 at the end opposite to the metal contact 1111. The surface of the adapter 111 may be provided with an assembly groove, and the second magnetic element 42 is disposed in the assembly groove, the surface of the second magnetic element 42 being flush with the surface of the adapter 111 with the assembly groove.

[0047] When the adapter 111 is connected to the base 112, the first magnetic element 41 and the second magnetic element 42 can be magnetically attracted, making the base 112 and the adapter 111 detachably connected. It should be noted that in other embodiments, the adapter 111 and the base 112 can also be detachably connected by snap-fit, screw connection, or other methods.

[0048] In some examples, the LED luminaire 100 also includes a first electrical connector 51 disposed on the base 112 and a second electrical connector 52 disposed on the adapter 111. The first electrical connector 51 is electrically connected to the lamp panel 21 of the light source 20. The base 112 and the adapter 111 are detachably connected, and the first electrical connector 51 and the second electrical connector 52 can be mated to form an electrical connection, thereby electrically connecting the light source 20 to the adapter 111, so that the light source 20 can be electrically connected to an external lamp holder.

[0049] The first electrical connector 51 and the second electrical connector 52 can be a pin and a slot structure that can be plugged into for electrical connection, a contact and a pin structure that can be made through abutting contact to achieve electrical connection, or a spring and a terminal structure that can be made through elastic contact, etc.

[0050] In some embodiments of this application, the base 11 further includes a snap-fit ​​member 113, which is fixed to the base member 112. The snap-fit ​​member 113 is annular, and its inner wall forms a snap-fit ​​portion 1131. The lampshade 12 has a mating portion 122 at its edge where it connects with the base 11, and an open receiving opening 121 at the connection point between the lampshade 12 and the base 11. The mating portion 122 is disposed at the receiving opening 121. The mating portion 122 and the snap-fit ​​portion 1131 are adapted to mate, thereby fixing the lampshade 12 to the base 11.

[0051] In some examples, the snap-fit ​​portion 1131 can be a snap-fit ​​block structure disposed on the inner wall of the snap-fit ​​member 113, and the mating portion 122 can be a snap-fit ​​groove structure disposed at the receiving opening 121. The snap-fit ​​block structure can be adapted to mate with the snap-fit ​​groove structure, so that the lampshade 12 is fixed on the base 11. In other examples, the snap-fit ​​portion 1131 can be a snap-fit ​​groove structure disposed on the inner wall of the snap-fit ​​member 113, and the mating portion 122 can be a snap-fit ​​block structure disposed at the receiving opening 121. The snap-fit ​​block structure can be adapted to mate with the snap-fit ​​groove structure, so that the lampshade 12 is fixed on the base 11.

[0052] In some embodiments of this application, the LED lamp 100 may further include an adjustment member 60, which may be disposed on the base 11 and is used to adjust the illumination parameters of the light source 20. The illumination parameters include, but are not limited to, light brightness and light color temperature.

[0053] The adjusting member 60 can be configured as a ring, rotatably mounted on the base member 112. The outer wall of the adjusting member 60 has a threaded structure to facilitate the user's operation of the relative rotation of the adjusting member 60 relative to the base member 112. In this example, the LED lamp 100 also includes a control module electrically connected to the light source 20, and the adjusting member 60 is electrically connected to the control module.

[0054] The user can operate the adjustment component 60 to rotate counterclockwise or clockwise relative to the base component 112, thereby triggering the control module to generate a control signal. The control module is electrically connected to the light source 20 to transmit the control signal to the lamp bead 22, so that the lamp bead 22 produces the corresponding lighting effect according to the control signal.

[0055] Furthermore, in this application, a light guide 30 is provided in the installation space 101 of the lamp body 10. The light guide 30 can convert the point light source 20 or the surface light source 20 formed by the lamp beads 22 into a three-dimensional light-emitting effect, realize the diffusion of light, and distribute the light in a larger space, so that the illumination of the LED lamp 100 is more uniform.

[0056] In some examples, the light guide 30 is columnar in shape, with an outer contour that is approximately mushroom-shaped. The interior of the light guide 30 is hollow, forming a light guide cavity 303. One end of the light guide 30 is provided with a light guide port 304 that communicates with the light guide cavity 303.

[0057] One end of the light guide 30, which has a light guide opening 304, is connected to the base 11 and faces the LED bead 22. The LED bead 22 is housed in the light guide cavity 303. The light guide 30 forms a light-incident portion 301 on the inner surface of the light guide cavity 303, and a light-emitting surface 302 is formed on the outer peripheral surface of the light guide 30. The light emitted by the LED bead 22 can enter the light guide 30 through the light-incident portion 301, and after being processed by reflection and / or refraction inside the light guide 30, it propagates and is emitted from the light-emitting surface 302 formed on the outer peripheral surface of the light guide 30.

[0058] The light guide 30 may include a light guide fiber. After the light emitted by the lamp bead 22 enters the light guide 30 through the light entrance 301, the light will be refracted in the direction of the central axis of the light guide fiber and propagate inside the light guide 30 because the refractive index of the light guide fiber is higher than that of air. This allows the light to exit the light guide 30 from different angles, thereby achieving a three-dimensional light emission effect.

[0059] In some examples, the light-incident portion 301 of the light guide 30 can be configured with a high reflectivity. When the light emitted by the lamp bead 22 strikes the light-incident portion 301, it will be continuously reflected, thus propagating inside the light guide 30 and gradually scattering into the surrounding space during propagation. This distributes the light, which was originally concentrated on a point or surface, within a certain spatial range, achieving the transformation into a three-dimensional light source 20.

[0060] In other examples, scattering particles or scattering agents can be placed inside the light guide 30 to achieve light scattering by adding scattering agents, scattering particles, or utilizing the microscopic non-uniform structure of the material itself of the light guide 30. Specifically, when the light emitted by the LED 22 propagates inside the light guide 30, it will be scattered in different directions when it encounters these scattering particles, scattering agents, or microscopic non-uniform structures, thereby making the light uniformly distributed in the light guide 30 and emitted from multiple directions from the light emitting surface 302 of the light guide 30, forming a three-dimensional light emission effect.

[0061] In other examples, the light-incident portion 301 of the light guide 30 can be surface-treated, such as by using frosting or microstructural treatment, to create a rough microstructure on the surface of the light guide 30. When the light emitted by the LED 22 shines on the surface of the light-incident portion 301 of the light guide 30, diffuse reflection occurs, scattering the light in all directions, thereby creating a three-dimensional lighting effect at the light-emitting surface 302 of the light guide 30.

[0062] It should be noted that, based on the LED luminaire 100's requirement for the three-dimensional light source 20, the above example can be formed independently in the LED luminaire 100 or combined with the LED luminaire 100, without further limitations.

[0063] In some embodiments of this application, the light guide 30 may include a base portion 31 and an extension portion 32. The base portion 31 is a cylindrical structure with openings at both ends and a hollow interior. One end of the base portion 31 forms a light guide port 304, and the opening of the base portion 31 away from the light guide port 304 is a connection port.

[0064] The extension 32 is a groove-shaped structure with one end closed and the other end open, and the opening of the extension 32 is a mating interface. The end of the base 31 with a connection port is connected to the end of the extension 32 with a mating interface, so that the interior of the base 31 and the interior of the extension 32 are connected to form a light guide cavity 303.

[0065] The outer peripheral side of the extension 32 extends outward beyond the outer peripheral side of the base 31, and the outer peripheral side of the extension 32 is in an outwardly expanding arc shape. This arrangement enables light to propagate effectively in the light guide 30, so that multiple light emission angles can be formed when the light emitting surface 302 is emitted, thereby improving the three-dimensional lighting effect of the LED lamp 100.

[0066] In some embodiments of this application, the outer surface of the extension 32 facing away from the interface is an arc-shaped surface, and the outer surface of the connection between the base portion 31 and the extension 32 has an arc-shaped transition. This arrangement not only enables the light guide 30 to effectively diffuse and propagate light, but also allows for optimized design of the appearance of the light guide 30.

[0067] In some examples, the wall thickness of the base portion 31 of the cylindrical structure gradually increases in the direction from the light guide port 304 toward the connection port.

[0068] As the wall thickness increases, the light guide 30 enhances its ability to capture and guide the light emitted by the LED beads 22, allowing more light to be confined within the light guide 30 for propagation. This reduces the scattering and leakage of light emitted by the LED beads 22 into the surrounding environment, improving the efficiency of light energy utilization. Furthermore, the gradual change in wall thickness allows the light emitted by the LED beads 22 to undergo more reflections and scatterings within the light guide 30, resulting in a more uniform distribution of light within a certain angle range upon emission. This improves the uniformity of light output, making the three-dimensional lighting effect softer and more uniform, and reducing differences in brightness.

[0069] In addition to the structure of the light guide 30 shown above, the light guide 30 can also be a cylindrical structure, a spherical structure, a hemispherical structure or a diamond-shaped structure, or the light guide 30 can also be a solid structure.

[0070] Furthermore, such as Figure 4 As shown, in some embodiments of this application, the lampshade 12 has a flexible and foldable structure to form various different folding shapes. The light emitted by the LED 22 can pass through the light guide 30 and then through the lampshade 12 with different folding shapes, thus forming different light effects.

[0071] In this example, the lampshade 12 can be made of flexible and light-transmitting materials such as polyethylene terephthalate, polycarbonate, plexiglass, polyurethane, silicone rubber, fluororubber, flexible glass, and light-guiding fibers. Multiple spaced annular crease lines 123 can be formed on the lampshade 12, allowing it to be folded into various different shapes.

[0072] In addition, the lampshade 12 can also be a light diffuser, such as made of light diffuser cloth, acrylic material, polycarbonate, polyethylene terephthalate, etc., so as to diffuse the light emitted by the lamp bead 22 and achieve a soft light effect.

[0073] In the LED lamp of this application, the light emitted by the lamp bead can enter the light guide through the light-incident part of the light guide, and propagate inside the light guide before being emitted from the light-out surface formed on the outer peripheral side of the light guide. This allows the light to propagate in multiple directions, transforming the point light source or surface light source formed by the lamp bead into a three-dimensional light-emitting effect, achieving light diffusion, distributing the light over a larger spatial range, making the illumination of the LED lamp more uniform, and effectively improving the lighting effect of the LED lamp.

[0074] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An LED lighting fixture, characterized in that, include: The lamp body includes a base and a lampshade disposed on the base, the lampshade and the base enclosing an installation space; the lampshade is light-transmitting, and the base is used for electrical connection with an external lamp holder; A light source is disposed in the installation space and fixed on the base; the light source includes a lamp board and lamp beads disposed on the lamp board, the lamp board is electrically connected to the base, and the lamp beads are disposed on the surface of the lamp board facing away from the base; A light guide is disposed in the installation space and arranged corresponding to the light source; the light guide has a light-incident portion, which is disposed facing the light source; the light emitted by the lamp bead can enter the light guide through the light-incident portion, and propagate inside the light guide and be emitted from the light-exiting surface formed on the outer peripheral surface of the light guide, thereby being emitted into the external environment through the lamp cover.

2. The LED lamp according to claim 1, characterized in that, The light guide body has a hollow interior forming a light guide cavity, and one end of the light guide body is provided with a light guide port communicating with the light guide cavity; the end of the light guide body with the light guide port is connected to the base and is positioned towards the lamp bead; the lamp bead is housed in the light guide cavity, and the light guide body forms the light incident part corresponding to the inner surface of the light guide cavity.

3. The LED lamp according to claim 2, characterized in that, The light guide includes a base portion and an extension portion. The base portion is a cylindrical structure with open ends and a hollow interior. One end of the base portion forms the light guide port, and the opening of the base portion away from the light guide port is a connection port. The extension is a groove-shaped structure with one end closed and the other end open, and the opening of the extension is a mating interface; the end of the base portion with the connection port is connected to the end of the extension portion with the mating interface, so that the interior of the base portion and the interior of the extension portion are connected to form the light guide cavity. The outer peripheral side of the extension extends outward beyond the outer peripheral side of the base portion, and the outer peripheral side of the extension portion is in an outwardly expanding arc shape.

4. The LED lamp according to claim 3, characterized in that, The outer surface of the extension portion facing away from the interface is an arc-shaped surface, and the outer surface of the connection between the base portion and the extension portion has an arc-shaped transition.

5. The LED lamp according to claim 3, characterized in that, In the direction from the light guide port to the connection port, the wall thickness of the base portion of the cylindrical structure gradually increases.

6. The LED lamp according to claim 1, characterized in that, The light guide can be one of the following: cylindrical, spherical, hemispherical, or diamond-shaped.

7. The LED lamp according to claim 1, characterized in that, The base includes an adapter and a base component detachably disposed on the adapter. The adapter is used for electrical connection with an external lamp holder, and the light source is disposed on the base component. The LED lamp further includes a first electrical connector disposed on the base and a second electrical connector disposed on the adapter. The first electrical connector is electrically connected to the lamp board of the light source. The base and the adapter are detachably connected, and the first electrical connector and the second electrical connector are mated to form an electrical connection.

8. The LED lamp according to claim 7, characterized in that, The LED lamp also includes a first magnetic component and a second magnetic component that can be magnetically attracted, the first magnetic component being disposed on the base component and the second magnetic component being disposed on the adapter component; The first magnetic component and the second magnetic component are magnetically attracted to each other, making the base component and the adapter component detachably connected.

9. The LED lamp according to claim 7, characterized in that, The base also includes a snap-fit ​​component, which is fixed to the base body. The snap-fit ​​component is annular, and its inner wall has a snap-fit ​​portion. The edge of the lampshade where it connects with the base has a mating portion, which is adapted to mate with the snap-fit ​​portion, so that the lampshade is fixed to the base.

10. The LED lamp according to claim 1, characterized in that, The lampshade is a light diffuser; and / or, the lampshade is a flexible and foldable structure to form a variety of different folding shapes. The light emitted by the LED beads can pass through the light guide and the lampshade with different folding shapes to form different light effects.

Images