CN113188101A

CN113188101A - Lighting device

Info

Publication number: CN113188101A
Application number: CN202110269123.5A
Authority: CN
Inventors: 艾雄; 吴文龙
Original assignee: Shenzhen Zhiyan Technology Co Ltd
Current assignee: Shenzhen Zhiyan Technology Co Ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-07-30

Abstract

The application provides a lighting device, include the base and install lighting module on the base, lighting module includes light source subassembly, fretwork pipe and reflection of light piece, the light source subassembly is fixed on the base, the one end of fretwork pipe covers the light source subassembly, reflection of light piece is fixed the other end of fretwork pipe, the light that the light source subassembly sent is in shine in the fretwork pipe, warp can follow after the reflection of light piece direction the inner wall court of fretwork pipe scatters all around and goes out. The application provides a lighting device, through the light guide that the light source subassembly shines at the fretwork inside pipe to the inner wall of fretwork pipe through reflective member to pass the fretwork pipe in order to the ambient heat radiation light all around to lighting device, the lighting device of this application design can effectual setback environment atmosphere, brings the light vision of preferred for the user and experiences.

Description

Lighting device

Technical Field

The application relates to the technical field of lighting, in particular to a lighting device.

Background

Along with the continuous improvement of life quality of people, the lighting lamp with good lighting effect occupies more and more components in work and life of people, and in order to meet the increasingly improved lighting requirements of people, the structure of the lighting lamp needs to be continuously improved.

The atmosphere lamp is taken as an example, the atmosphere lamp is mainly used for creating warm and mild environment atmosphere, the existing atmosphere lamp is single in design, one side of light of most atmosphere lamps shines towards the other side, light atmosphere setoff to the surrounding environment is difficult to achieve, and the experience effect is poor.

Disclosure of Invention

In view of this, the present application provides a lighting device capable of realizing an atmosphere that defuses the surrounding environment.

The application provides a lighting device, includes the base and installs lighting module on the base, its characterized in that: the illumination module comprises a light source assembly, a hollow tube and a reflecting piece, the light source assembly is fixed on the base, one end of the hollow tube covers the light source assembly, the reflecting piece is fixed at the other end of the hollow tube, light emitted by the light source assembly irradiates in the hollow tube and can be scattered out from the inner wall of the hollow tube towards the periphery after being guided by the reflecting piece.

Furthermore, the lighting device further comprises a lens, the lens is positioned on one side, facing the inside of the hollow tube, of the light source assembly, the lens is integrally and gradually contracted along one end facing the direction of the light source assembly, and light rays emitted by the light source assembly are guided by the lens and then projected to the reflecting piece.

Furthermore, a plurality of bulges are arranged on the plane of the lens far away from the light source component, and light rays emitted from the plane of the lens are guided by the bulges and then projected to the reflecting piece.

Further, the light source subassembly includes the lamp plate and sets up lamp pearl on the lamp plate, the card hole has been seted up on the lamp plate, the cover be equipped with on the lens with the corresponding joint portion in card hole, lens pass through joint portion with the cooperation of being connected in card hole with the setting of lamp pearl next-door neighbour.

Further, the lighting module further comprises a light-permeable diffusion cover, and the diffusion cover is sleeved in the hollow pipe and coaxially arranged with the hollow pipe.

Furthermore, the lighting module further comprises a top cover, the top cover covers one end, far away from the light source assembly, of the hollow pipe, and the light reflecting piece is located on one side, facing the light source assembly, of the top cover.

Further, the base comprises a bottom plate, a supporting piece and a heat conducting piece, the supporting piece is arranged on the bottom plate, the heat conducting piece is contained in the supporting piece, the light source assembly is connected to one end, far away from the bottom plate, of the heat conducting piece, and the heat conducting piece is used for guiding heat emitted by the light source assembly to the outside.

Further, the base further comprises a heat dissipation member, the heat dissipation member is arranged on the base plate and is in contact with the heat conduction member, the diameter of the heat dissipation member is larger than that of the heat conduction member, and the heat dissipation member can conduct heat transferred by the heat conduction member to the outside.

Furthermore, an outer edge part extends from the side wall of one end of the heat conducting piece, which is far away from the bottom plate, the outer edge part surrounds the heat conducting piece main body, and a through hole is formed in the surface of the outer edge part along the radial direction; the outstanding reference column that is provided with on support piece's the inside wall with the through-hole is corresponding, the reference column stretches out suddenly support piece keeps away from the terminal surface of bottom plate, the light source subassembly includes the lamp plate and sets up lamp pearl on the lamp plate, the part length that the reference column stretches out suddenly is greater than or equal to the thickness of outer edge portion with the thickness sum of lamp plate.

Further, the base further comprises a heat-conducting fin positioned between the heat-dissipating member and the heat-conducting member; and/or the heat-conducting sheet is positioned between the heat-conducting member and the light source assembly.

The application provides a lighting device, through the light guide structure of design, can help providing the effect of setoff atmosphere with light direction lighting device all around, still including the heat conduction structure of design among the lighting device moreover for lighting device's heat can effectually distribute away, helps improving lighting assembly's life.

Drawings

Fig. 1 is a schematic structural diagram of a lighting device according to an embodiment of the present application.

Fig. 2 is an exploded view of a lighting device according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a light source module and a lens according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural view of a base and a light source assembly according to an embodiment of the present disclosure.

Fig. 5 is an exploded view of a base according to an embodiment of the present application.

Fig. 6 is a schematic structural view of the bottom plate and the supporting member of the base shown in fig. 5 of the present application.

Fig. 7 is a further exploded view of the base according to an embodiment of the present application.

Detailed Description

Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or a rotating connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below.

Referring to fig. 1 and 2, an embodiment of the present application provides a lighting device including a base and a lighting module mounted on the base, wherein the base is used for supporting the lighting module. The lighting module comprises a light source component 1, a hollow tube 2, a top cover 3 and a reflecting piece 4. Openings are formed in two ends of the hollow tube 2, and one end of the hollow tube covers and surrounds the light source assembly 1, so that light rays emitted by the light source assembly 1 irradiate in the hollow tube; the top cover 3 is arranged at the other end of the hollow tube 2, the light reflecting piece 4 is positioned at one end of the top cover 3 close to the inside of the hollow tube 2, and the light reflecting piece 4 can be guided to the inner wall of the hollow tube 2 after reflecting, refracting or diffracting the light emitted by the light source component 1; the hollow tube 2 is provided with a plurality of light holes 21 on the surface, so that the light emitted by the reflector 4 passes through and is projected to the surrounding environment to set off the atmosphere. Wherein, a plurality of light trap 21 on the fretwork pipe 2 can have a plurality ofly, and a plurality of light trap 21 can be the matrix and spread over the surface of fretwork pipe 2 for the light that shines out through lighting device can be directive all around, with the setoff atmosphere.

In some embodiments, the reflective member 4 may be a reflective paper or a reflective coating. In one embodiment, the light-reflecting member 4 is a light-reflecting paper, which is attached to the surface or the side surface of the top cover 3 near the hollow tube 2, and when the light source assembly 1 emits light, the light-reflecting paper can reflect the light emitted from the light source assembly 1. In one embodiment, the light reflecting member 4 is a light reflecting coating coated on the surface or the side surface of the top cover 3 near the hollow tube 2, so that when the light emitted from the light source assembly 1 irradiates the top cover 3, the light irradiated from the light source assembly 1 can be reflected by the light reflecting coating. In some embodiments, the light emitting element 4 may also be an optical element, which is connected to an end of the top cover 3 near the hollow tube 2 to guide the light emitted from the light source assembly 1 to the hollow tube 2.

In some embodiments, the top cover 3 may not be needed, and the light reflector 4 is directly covered on one end of the hollow tube 2, and the light reflector 4 is fixed relative to the hollow tube 2.

Specifically, the light that light source subassembly 1 launches shines on top cap 3 through fretwork pipe 2, and top cap 3 of installing reflection of light piece 4 can throw out light directive inside wall of fretwork pipe 2, and the light after 4 reflections of reflection of light piece is through a plurality of light trap 21 on fretwork pipe 2 surface, can set off lighting device atmosphere all around, but also can strengthen the luminance of light-emitting. When light shines the other end of fretwork pipe 2 by the one end of fretwork pipe 2, the one end light intensity that fretwork pipe 2 is close to light source subassembly 1 is stronger, and the one end light intensity that light source subassembly 1 was kept away from to fretwork pipe 2 is weaker, can ensure that the one end luminance that light source subassembly 1 was kept away from to fretwork pipe 2 through installation reflector 4 in top cap 3 this moment obtains the reinforcing, and make the light that jets out from lighting device whole comparatively even soft, avoid because of following lighting device directive light all around inhomogeneous, and produce not good vision light for the user and experience.

In some embodiments, the hollow tube 2 may be a lampshade without the light hole 21, as long as it can scatter the light guided by the reflector 4 from the periphery of the lighting device.

Referring to fig. 2 and 3 again, the lighting module further includes a lens 5 adjacently connected to the light source assembly 1, and the lens 5 and the light source assembly 1 are sleeved in the hollow tube 2. The lens 5 is substantially horn-shaped and includes a side portion 51 and a plane 52, one end of the side portion 51 away from the plane 52 is disposed adjacent to the light source assembly 1, the plane 52 is substantially circular, and one end of the lens 5 in a direction toward the light source assembly 1 is gradually contracted. Light that light source subassembly 1 sent jets out behind 5 spotlight of lens for light shines towards the specified direction, and light is more concentrated, finally makes the even soft of light that lighting device jetted out, and the light bulk strength that avoids lighting device to shine is different, influences the environmental atmosphere and adjusts the scene.

In some embodiments, the plane 52 of the lens 5 is further provided with a plurality of protrusions 54, and the light emitted from the plane 52 can be further adjusted by the micro protrusions 54 and then emitted, so that the light is more uniform. Wherein, the plurality of protrusions 54 are arranged in a circular matrix.

Referring to fig. 3, the light source assembly 1 includes a lamp panel 11 and a lamp bead 12 disposed on the lamp panel, a clamping hole 111 is disposed on the lamp panel 11, a clamping portion 53 corresponding to the clamping hole 111 is sleeved on the lens 5, and the lens 5 is disposed adjacent to the lamp bead 12 through the connection and cooperation of the clamping portion 53 and the clamping hole 111, so as to adjust light emitted by the lamp bead 12.

On lateral part 51 was located to joint portion 53 cover, be provided with trip 531 on joint portion 53, when installing lens 5 relative lamp plate 11, can insert corresponding draw-in hole 111 with joint portion 53 of lens 5, trip 531 on joint portion 53 can hook lamp plate 11 to increase the stability of lens 5 and the installation of light source subassembly 1. Joint portion 53 can be made by elastic material, and when pressing joint portion 53, elastic deformation can take place for joint portion 53 for trip 531 no longer catches on lamp plate 11, and then can separate lens 5 and lamp plate 11. The number of the locking portions 53 and the corresponding locking holes 111 is not limited, and may be plural, for example, 3 in the figure.

In some embodiments, the lamp panel 11 may have a plurality of lamp beads 12, and the plurality of lamp beads 12 may be arranged in a ring shape to correspond to the lens 5. Wherein, the light of different colours and luminance can be launched to each lamp pearl, can satisfy the requirement of different environment atmospheres, and the colour and the luminance of lamp pearl can carry out timely change according to user's demand to the demand that adapts to the atmosphere and adjusts.

Referring to fig. 2 again, the lighting module further includes a diffusion cover 7, which is sleeved in the hollow tube 2 and coaxially disposed with the hollow tube. The diffusion cover 7 is the cavity column, and it adopts the printing opacity material to make, and the light that the light source subassembly 1 launches can see through the diffusion cover 7 and produce the scattering through the back is adjusted to the light trap 21 on 2 surfaces of fretwork pipe can be passed through, makes the light that transmits out from fretwork pipe 2 more even. In some embodiments, the diffusion cover 7 may also be in a mesh shape, the mesh-shaped diffusion cover 7 is sleeved inside the hollow pipe 2, and meshes on the mesh-shaped diffusion cover 7 can diffuse light, so that the light can be uniformly and softly diffused out, and the effect of adjusting the environment atmosphere is achieved.

In some embodiments, the lighting module further includes a light shielding ring 8, which is sleeved on the circumferential surface of the top cover 3, and the light shielding ring 8 can be attached to the inner sidewall of the hollow tube 2 and coaxially disposed with the hollow tube 2. When the installation, can locate the circumference surface of top cap 3 with the shading ring 8 cover earlier, directly cover top cap 3 in the one end of fretwork pipe 2 again, top cap 3 accessible shading ring 8 and fretwork pipe 2 interference fit. After light source subassembly 1 is luminous, light shines on top cap 3, can prevent through the shading ring 8 that sets up that light from revealing from the gap between top cap 3 and the fretwork pipe 2, avoids causing the light loss.

In some embodiments, the circumferential surface of the top cover 3 is further provided with an annular groove 31, the shading ring 8 can be installed in the annular groove 31, so that the shading ring 8 is positioned, the situation that the top cover 3 is dislocated after being installed into the hollow lamp tube is avoided, the sealing performance of the top cover 3 when covering the hollow tube 2 can be guaranteed, and light loss is avoided. And after long-time use, the sealing ring is easy to age, and the replacement of the sealing ring is convenient through the annular groove 31.

Please refer to fig. 4, the base is used for supporting the lighting module, and includes a bottom plate 60 and a supporting member 61 disposed on the bottom plate, the bottom plate can be placed on the desktop, the supporting member 61 is vertically connected to the bottom plate 60, the hollow tube 2 can be vertically supported by the bottom plate and the supporting member 61, so that the light emitted from the light source assembly 1 can be upwards irradiated from the bottom of the hollow tube 2, and is projected to the top cover 3 through the inside of the hollow tube 2 via the bottom of the hollow tube 2, and the light is scattered out from the light hole 21 of the hollow tube 2 after being adjusted by the light reflecting member 4. The light source assembly 1 may be installed on a support 61, and the support 61 may be connected with the perforated pipe 2. The outer peripheral surface of one end, far away from the bottom plate, of the support 61 is provided with a first thread 611, the inner peripheral surface of one end, near the base, of the hollow pipe 2 is provided with a second thread 22, and the hollow pipe 2 can be in threaded connection with the base through the matching of the first thread 611 and the second thread 22. When the installation, can locate support piece 61 with the rotatory cover of fretwork pipe 2, through the cooperation of second screw thread 22 with first screw thread 611 to with the upright fixing of fretwork pipe 2 on support piece 61, the dismouting of being convenient for is convenient for, can demolish fretwork pipe 2 from support piece 61 when need not using, is convenient for accomodate, and is convenient for maintain and change when spare part appears damaging.

Support piece 61's inside can be hollow structure, and light source subassembly 1 can partially accept to install in support piece 61's inside, outside light source subassembly 1 was located to the fretwork pipe 2 cover to the light that ensures light source subassembly 1 to send can not produce and reveal, makes the light that the lamp pearl 12 of light source subassembly 1 produced can shine completely to the inside of fretwork pipe 2. In some embodiments, the supporting member 61 includes a positioning portion 612, the lamp panel 11 has a positioning hole 112, and the light source assembly 1 can be fixed on the supporting member 61 of the base by sequentially passing the fastener 10 through the positioning hole 112 and the positioning portion 612. Fastener 10 can be the screw, when carrying out the installation of light source subassembly 1, passes the locating hole 112 on the lamp plate 11 with the screw, offers the screw hole with screw matched with on the location portion 612, through with the screw precession screw hole to realize the fixed of light source subassembly 1 relative support piece 61, stability when the guarantee light source subassembly 1 is luminous.

The application provides a lighting device, through the light guide that the light source subassembly shines at the fretwork inside pipe to the inner wall of fretwork pipe through reflective member to pass the fretwork pipe in order to the ambient heat radiation light all around to lighting device, the lighting device of this application design can effectual setback environment atmosphere, brings the light vision of preferred for the user and experiences.

Referring to fig. 5-7, a base of a lighting device according to an embodiment of the present disclosure includes a base plate 70, a supporting member 71 disposed on the base plate, a heat conducting member 72, and a heat dissipating member 73. Wherein, the supporting piece 71 is detachably connected with the bottom plate 70, and the supporting piece 71 is a hollow structure; the heat conducting member 72 is accommodated in the supporting member 71 and fixed relative to the supporting member 71; the heat sink 73 is disposed on a side of the bottom plate 70 away from the supporting member 71, and is fixed relative to the bottom plate 70; the light source assembly 1 can be arranged on the heat conducting piece 72, and the heat conducting piece 72 can transfer heat emitted when the light source assembly 1 irradiates to the heat radiating piece 73, so that the heat is conducted to the outside, the heat radiating function of the illuminating device is realized, and the service life of the illuminating device is prolonged.

The bottom plate 70 is provided with a limiting groove 701, the supporting member 71 can be inserted into the limiting groove 701 to realize the insertion fit with the bottom plate 70, the bottom plate 70 and the limiting groove 701 can be provided with a limiting hole 702, the bottom end of the supporting member 71 adjacent to the bottom plate 70 is provided with a limiting block 711 corresponding to the limiting hole, and the limiting block 711 can be inserted into the limiting hole 702 to realize the connection between the supporting member 71 and the bottom plate 70. The number of the limiting blocks 711 and the limiting holes 702 can be provided in a plurality, and the supporting piece 71 can be prevented from rotating relative to the bottom plate 70 through the matching of the limiting blocks 711 and the limiting holes 702, so that the connection stability is guaranteed. In some embodiments, the support 71 may be connected to the base plate 70 by a threaded connection.

The heat conducting element 72 is substantially columnar, an outer edge portion 721 extends from a side wall of one end of the heat conducting element 72, the outer edge portion 721 surrounds the side wall of the main body of the heat conducting element 72, and a plurality of through holes 722 are radially formed on the surface of the outer edge portion 721; a positioning column 712 corresponding to the through hole 722 is protrudingly disposed on the inner side wall of the support member 71, the positioning column 712 extends out of the upper end surface of the support member 71, and the length of the extending portion of the positioning column 712 is greater than or equal to the sum of the thickness of the outer edge portion 721 and the thickness of the lamp panel 11. The positioning post 712 sequentially passes through the through hole 722 and the positioning hole 112, so that the heat conducting member 72 and the lamp panel 11 can be fixed relative to the supporting member 71. Wherein, the quantity of reference column 712 is a plurality of, can realize the location to heat-conducting piece 72 and lamp plate 11 through a plurality of location 712 to the degree of freedom of restriction heat-conducting piece 72 in the horizontal direction. In some embodiments, while the positioning post 712 sequentially passes through the through hole 722 and the positioning hole 112 to fix the heat conducting member 72 and the lamp panel 11 relative to the support member 71, the fastening member 20 may further pass through the positioning hole 112 and the through hole 722 and be inserted into the positioning post 712 to further fix the lamp panel 11, the heat conducting member 72 and the support member 71. Wherein, fastener 20 can be the screw, set up on the reference column 712 with screw matched with screw hole, with the screw precession screw hole in to realize that lamp plate 11, heat-conducting piece 72 are fixed relative support piece 71, can effectively prevent rocking of lamp plate 11 and heat-conducting piece 72, improve heat dissipation stability, heat-conducting piece 72 holding has utilized the space effectively inside support piece 71's cavity moreover.

In some embodiments, an avoiding groove 723 is formed at an end of the heat conducting member 72 away from the light source 1 for avoiding the wire. The wires may be led out from the light source assembly 1, sequentially pass through the support 71, and be led out from the inside of the support 71 to the bottom plate 70. A power interface can be arranged on the bottom plate 70, a lead can be connected with the power interface, and the power supply to the light source component 1 is realized through an external power supply; the avoidance groove 723 formed in the heat conducting piece 72 can avoid the conducting wire, so that the conducting wire mode of the lighting device is reasonable.

The heat radiating member 73 is installed in the base plate 70, and the diameter of the heat radiating member 73 is larger than that of the heat conductive member 72. In some embodiments, the heat sink 73 may also be located on the side of the base plate 70 remote from the light source assembly 1, directly in contact with the supporting table top. When the heat-conducting member 72 transfers the heat emitted from the light source assembly 1 to the heat-radiating member 73, the heat-radiating member 73 may be in sufficient contact with the air or the supporting table top to radiate the heat of the lighting device. The heat dissipation member 73 has a large diameter and a large contact area with the outside, which contributes to improving the heat dissipation capability of the lighting device and prolonging the service life of the lighting device. Wherein, the ratio of the diameters of the heat sink 73 and the heat conduction member 72 is between 3: 1 to 10: 1.

In some embodiments, the heat sink 73 has a receiving groove 731, and the heat conducting sheet 74 can be received in the receiving groove 731. The accommodating groove 731 is matched with the shape of the heat conducting sheet 74, and heat can be better transferred to the heat radiating member 73 by arranging the heat conducting sheet 74, so that the heat radiating efficiency is improved; the heat-conducting sheet 74 can be positioned by accommodating the heat-conducting sheet 74 in the accommodating groove 731, so that displacement of the heat-conducting sheet 74 during installation is avoided, and stability of heat dissipation is guaranteed.

In some embodiments, the illumination device may directly guide heat emitted from the light source assembly 1 to the outside through the heat conductive member 72.

In some embodiments, a heat conducting plate 74 is also installed between the heat conducting member 72 and the lamp panel 11, and two opposite end surfaces of the heat conducting plate 74 are respectively attached to the heat conducting member 72 and the lamp panel 11. Can realize the better transmission of heat through conducting strip 74, when the lamp pearl 12 on the lamp plate 11 is luminous, the heat that gives off can transmit to the heat-conducting piece 72 in through conducting strip 74, and conducting strip 74 closely laminates between lamp plate 11 and heat-conducting piece 72 to ensure good heat conduction effect, after heat transmission to heat-conducting piece 72, transmit to rather than the radiating piece 73 who is connected through heat-conducting piece 72.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. A lighting device comprising a base and a lighting module mounted on said base, characterized in that: the illumination module comprises a light source assembly, a hollow tube and a reflecting piece, the light source assembly is fixed on the base, one end of the hollow tube covers the light source assembly, the reflecting piece is fixed at the other end of the hollow tube, light emitted by the light source assembly irradiates in the hollow tube and can be scattered out from the inner wall of the hollow tube towards the periphery after being guided by the reflecting piece.

2. A lighting device as recited in claim 1, wherein: the lighting device further comprises a lens, the lens is located on one side, facing the inside of the hollow pipe, of the light source assembly, the lens is integrally contracted along one end, facing the direction of the light source assembly, of the lens, and light rays emitted by the light source assembly are guided by the lens and then projected to the reflecting piece.

3. The lighting assembly of claim 2, wherein: the plane of the lens far away from the light source component is provided with a plurality of bulges, and light rays emitted from the plane of the lens are guided by the bulges and then projected to the reflecting part.

4. A lighting device as recited in claim 2, wherein: the light source subassembly includes the lamp plate and sets up lamp pearl on the lamp plate, the card hole has been seted up on the lamp plate, the cover be equipped with on the lens with the corresponding joint portion in card hole, lens pass through joint portion with the cooperation of being connected in card hole with the lamp pearl next-door neighbour sets up.

5. A lighting device as recited in claim 1, wherein: the lighting module further comprises a light-permeable diffusion cover, and the diffusion cover is sleeved in the hollow pipe and coaxially arranged with the hollow pipe.

6. A lighting device as recited in claim 1, wherein: the lighting module further comprises a top cover, the top cover covers the hollow pipe and is far away from one end of the light source assembly, and the light reflecting piece is located on one side, facing the light source assembly, of the top cover.

7. A lighting device as recited in claim 1, wherein: the base comprises a bottom plate, a supporting piece and a heat conducting piece, the supporting piece is arranged on the bottom plate, the heat conducting piece is contained in the supporting piece, the light source assembly is connected to one end, far away from the bottom plate, of the heat conducting piece, and the heat conducting piece is used for guiding heat emitted by the light source assembly to the outside.

8. The illumination device of claim 7, wherein: the base further comprises a heat dissipation part, the heat dissipation part is arranged on the base plate and is in contact with the heat conduction part, the diameter of the heat dissipation part is larger than that of the heat conduction part, and the heat dissipation part can conduct heat transferred by the heat conduction part to the outside.

9. The illumination device of claim 7, wherein: an outer edge part extends from the side wall of one end of the heat conducting piece, which is far away from the bottom plate, the outer edge part surrounds the heat conducting piece main body, and a through hole is formed in the surface of the outer edge part along the radial direction; the outstanding reference column that is provided with on support piece's the inside wall with the through-hole is corresponding, the reference column stretches out suddenly support piece keeps away from the terminal surface of bottom plate, the light source subassembly includes the lamp plate and sets up lamp pearl on the lamp plate, the part length that the reference column stretches out suddenly is greater than or equal to the thickness of outer edge portion with the thickness sum of lamp plate.

10. The illumination device of claim 7, wherein: the base further comprises a heat-conducting fin positioned between the heat-radiating member and the heat-conducting member;

and/or the heat-conducting sheet is positioned between the heat-conducting member and the light source assembly.