CN217482691U

CN217482691U - Desk lamp

Info

Publication number: CN217482691U
Application number: CN202221441571.5U
Authority: CN
Inventors: 李京蔓
Original assignee: Suzhou Op Lighting Co Ltd
Current assignee: Suzhou Op Lighting Co Ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-23
Anticipated expiration: 2032-06-10

Abstract

The utility model provides a desk lamp, including lamp body, bracing piece and base, the bracing piece with base fixed connection, just the lamp body can for the bracing piece rotates, the lamp body includes the bottom plate, be formed with first cavity and second cavity in the lamp body, the opening place plane of first cavity is on a parallel with second cavity opening place plane, be equipped with the orientation in the first cavity the first light source module that the opening of first cavity jetted out, the second cavity encircles first cavity sets up, be equipped with second light source module in the second cavity, the light that second light source module sent certainly after the reflection the opening of second cavity jets out. Compared with the prior art, the utility model discloses set up two sets of illumination areas, when providing professional illumination, also can provide the atmosphere illumination to cooperate through the side is luminous with the reflector, control light trend that can be better improves irradiant homogeneity.

Description

Desk lamp

Technical Field

The utility model relates to a desk lamp belongs to the lighting technology field.

Background

At present, reading and writing operation table lamps on the market can both satisfy the illumination demand of basis, but the illumination function is comparatively single, and reading and writing operation table lamp's light-emitting mode has straight following formula light-emitting, indirect formula light-emitting, and wherein indirect formula light-emitting includes reflective light-emitting and leaded light formula light-emitting. The light-guiding type light-emitting principle is that light emission is realized by a mode of an acrylic light guide plate provided with a microstructure, but the light guide plate cannot meet the requirement of high uniformity of illumination.

In view of the above, it is necessary to provide a desk lamp to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desk lamp can satisfy the different demands that high illuminance and atmosphere were felt.

In order to achieve the above object, the utility model provides a desk lamp, including lamp body, bracing piece and base, the bracing piece with base fixed connection, just the lamp body can for the bracing piece rotates, the lamp body includes the bottom plate, be formed with first cavity and second cavity in the lamp body, the opening place plane of first cavity is on a parallel with second cavity opening place plane, be equipped with the orientation in the first cavity the first light source module that the opening of first cavity jetted out, the second cavity encircles first cavity sets up, be equipped with the second light source module in the second cavity, the light that the second light source module sent is certainly after the reflection the opening of second cavity jets out.

As a further improvement of the utility model, the lamp body is including forming first cavity with first lateral wall between the second cavity and forming are in the second lateral wall in the second cavity outside, first cavity by first lateral wall encloses to establish and forms, the second cavity by first lateral wall with the second lateral wall encloses jointly and establishes and forms, second light source module sets up on the second lateral wall.

As a further improvement of the present invention, the first side wall is along the extending length of the first light source module in the light emitting direction is greater than the extending length of the second side wall in the direction.

As a further improvement of the present invention, a reflector is provided between the first side wall and the second side wall, the reflector is formed on the bottom plate and located in the second cavity, and the reflector has a reflective curved surface facing the second light source module.

As a further improvement of the utility model, the desk lamp still includes first optical part and the second optical part that is used for diffusing light, first optical part sets up the opening part of first cavity, second optical part sets up the opening part of second cavity, first optical part with second optical part is located the coplanar.

As a further improvement of the present invention, the outer side of the second optical portion is further provided with a micro-structure for changing the optical path, and the micro-structure includes a plurality of annular sawtooth structures concentrically arranged.

As a further improvement of the present invention, the microstructure is formed on the surface of the second optical portion by laser dotting or screen printing.

As a further improvement, the light-emitting direction of the first light source module is perpendicular to the light-emitting direction of the second light source module.

In order to achieve the above object, the utility model also provides a desk lamp, including lamp body, bracing piece and base, the bracing piece with base fixed connection, just the lamp body can for the bracing piece rotates, the lamp body includes the bottom plate, be formed with first cavity and second cavity in the lamp body, the opening place plane of first cavity is on a parallel with second cavity opening place plane, be equipped with first light source module in the first cavity, the second cavity encircles first cavity sets up, be equipped with the orientation in the second cavity the second light source module that the opening of second cavity jetted out, the light that first light source module sent is from after the reflection the opening of first cavity jets out.

As a further improvement, the light-emitting direction of the second light source module is parallel to the light-emitting direction of the first light source module.

The utility model has the advantages that: the utility model discloses two sets of illumination areas have been set up, when providing professional illumination, also can provide the atmosphere illumination to cooperate through the side is luminous with the reflector, and control light trend that can be better improves irradiant homogeneity.

Drawings

Fig. 1 is a schematic view of the sectional structure of the desk lamp of the present invention.

Fig. 2 is a schematic cross-sectional view of another viewing angle of the desk lamp of the present invention.

Fig. 3 is a schematic cross-sectional structure of the desk lamp of the present invention.

Fig. 4 is a schematic view of the internal structure of the desk lamp of the present invention.

Fig. 5 is a schematic view of the optical path structure of the second optical module of the desk lamp of the present invention.

Fig. 6 is a schematic diagram of the light distribution of the second optical module of the desk lamp according to the present invention through the reflector.

Fig. 7 is a schematic light distribution diagram of the second optical module of the desk lamp according to the present invention, which passes through the reflector and the second optical portion.

Fig. 8 is a schematic structural view of the desk lamp of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in detail with reference to the accompanying drawings and specific embodiments.

In order to avoid obscuring the present invention with unnecessary details, it should be noted that only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1 to 8, the present invention discloses a desk lamp 100, said desk lamp 100 includes two portions for lighting, wherein the first portion is used for providing professional lighting during reading and writing operations, the second portion is used for atmosphere lighting, the first portion and the second portion can be simultaneously lighted, or respectively and independently controlled, without limitation, and in other embodiments, the first portion can be independently rotated relative to the second portion to adjust the lighting angle, so as to change the light emitting direction. For clarity, the following description will use the table lamp 100 as an example.

As shown in fig. 1 to 5 in combination with fig. 8, the desk lamp 100 includes a lamp housing 10, a support rod 101 and a base 102, the support rod 101 is fixedly connected to the base 102, and the lamp housing 10 can rotate relative to the support rod 101, of course, in other embodiments, the support rod 101 can also rotate relative to the base 102, the base 102 is provided with a button and a switch for adjusting the brightness of the desk lamp 100, and the base 102 is further provided with a power line for connecting to an external power source.

The lamp housing 10 is disc-shaped and includes a circular bottom plate 11, a first cavity 20 and a second cavity 30 are formed in the lamp housing 10, wherein a first light source module 21 for emitting light is disposed in the first cavity 20, a second light source module 31 for emitting light is disposed in the second cavity 30, the second cavity 30 is disposed around the first cavity 20, the specific shapes of the first cavity 20 and the second cavity 30 are not limited, the first cavity 20 is preferably a cylindrical cavity, the second cavity 30 is an annular cavity disposed around the first cavity 20, and a plane where an opening of the first cavity 20 is located is parallel to a plane where an opening of the second cavity 30 is located. The lamp housing 10 further includes a first sidewall 12 and a second sidewall 13, the first sidewall 12 and the second sidewall 13 are perpendicular to the bottom plate 11, the first sidewall 12 is disposed between the first cavity 20 and the second cavity 30, the second sidewall 13 is formed at the periphery of the bottom plate 11 and located at the outer side of the second cavity 30, that is, the first cavity 20 is surrounded by the first sidewall 12, and the second cavity 30 is surrounded by the first sidewall 12 and the second sidewall 13.

As shown in fig. 3, in the above embodiment, when the desk lamp 100 is horizontally disposed, the bottom plate 11 is horizontally disposed, the first side wall 12 and the second side wall 13 are both vertically disposed, and in the vertical direction, the extending length of the first side wall 12 is greater than the extending length of the second side wall 13, so that an included angle θ is formed between a straight line where the bottom of the second side wall 13 and the bottom of the first side wall 12 are located and the horizontal direction, where the included angle θ is an anti-glare angle, so as to prevent light crosstalk from being formed between the first light source module 21 in the first cavity 20 and the second light source module 31 in the second cavity 30, and further avoid large-angle glare.

In the preferred embodiment of the present invention, the first light source module 21 is disposed on the bottom plate 11 in the first cavity 20, and the first light source module 21 includes led lamp beads distributed in a plurality of arrays, the light emitted from the first light source module 21 is generated and directed along the vertical direction at the opening of the first cavity 20, the second light source module 31 is disposed on the inner side of the second side wall 13, and the second light source module 31 includes led lamp beads distributed in a plurality of rings, the light emitted from the second light source module 31 is generated and perpendicular to the light emitting direction of the first light source module 21 along the horizontal direction, that is, the light emitting direction of the second light source module 31 is parallel to the plane where the bottom plate 11 is located and directed toward the first cavity 20. It should be noted that, because the light generated by the first light source module 21 and the second light source module 31 is in a conical scattering, the light emitting direction of the first light source module 21 and the second light source module 31 is the light emitting direction of the led lamp bead, that is, the led lamp bead of the first light source module 21 and the second light source module 31 faces the positive direction, and the direction is perpendicular to the plane where the led lamp bead is located.

Because the first light source module 21 and the second light source module 31 are both attached to the lamp housing 10, the lamp housing 10 is preferably made of metal, so as to transfer heat generated by the first light source module 21 and the second light source module 31. Preferably, heat-conducting silicone grease may be further coated between the first light source module 21 and the bottom plate 11 and between the second light source module 31 and the bottom plate 11 to accelerate the heat-conducting rate.

As shown in fig. 6, a reflector 40 for reflecting the light of the second light source module 31 is further disposed in the second cavity 30, the reflector 40 is disposed in close contact with the bottom plate 11, the reflector 40 has a curved reflective surface facing the second light source module 31, that is, facing the second side wall 13, the curved reflective surface may be a free-form surface, a thickness of the reflector 40 in the vertical direction is first decreased and then increased from the second side wall 13 to the first side wall 12, and finally, after the light emitted by the second light source module 31 is reflected by the reflector 40, a direction of the emitted light is substantially the same as a light emitting direction of the first light source module 21, that is, the light emitted by the second light source module 31 is emitted from an opening of the second cavity 30 after being reflected. In other words, the first light source module 21 emits light in a direct-type manner, and the second light source module 31 emits light in an indirect type manner.

Certainly, in the above embodiment, the second light source module 31 may also be disposed on the other side of the second cavity 30, which is equivalent to be disposed on the outer surface of the first sidewall 12, the second light source module 31 also includes a plurality of led beads distributed annularly, light emitted by the second light source module 31 is also generated along the horizontal direction, but is generated away from the first cavity 20, at this time, the first light source module 21 still emits light in the direct-illumination mode, and the second light source module 31 still emits light in the indirect mode. Accordingly, in the present embodiment, the reflector 40 should be disposed in a reverse direction, and the curved reflective surface should face the first sidewall 12 to correctly reflect the light.

In other embodiments of the present invention, the first light source module 21 can also be an indirect light emitting module, the first light source module 21 can be disposed inside the first sidewall 12 and distributed annularly, and meanwhile, for improving the light emitting efficiency of the first light source module 21, a reflective structure can be disposed in the first cavity 20 to deflect the emergent light of the first cavity 20 to a vertical direction. Of course, the reflecting structure includes, but is not limited to, a reflecting surface or a light guide plate instead, and is not limited in any way as long as the light can be deflected. When the first light source module 21 emits light indirectly, the second light source module 31 is not limited to emit light indirectly, and may emit light directly.

It should be noted that, taking the first light source module 21 as direct light emitting and the second light source module 31 as indirect light emitting as an example, the light emitting surface of the indirect light emitting is soft and not dazzling, and is suitable for providing professional illumination during reading and writing operations, therefore, the cross-sectional area of the second cavity 30 on the horizontal plane should be larger than the cross-sectional area of the first cavity 20 on the horizontal plane, so as to provide higher illumination intensity, and certainly, the number of led lamp beads of the first light source module 21 and the second light source module 31 may also be changed, without any limitation. Meanwhile, the brightness of the first light source module 21 and the second light source module 31 can be independently controlled, so that the light of the first light source module 21 and the light of the second light source module 31 can achieve the illumination effect desired by the user.

With reference to fig. 3 and 7, in another embodiment of the present invention, the desk lamp 100 further includes a first optical portion 22 and a second optical portion 32, the first optical portion 22 and the second optical portion 32 are respectively disposed at the light exit of the first cavity 20 and the second cavity 30, the first optical portion 22 and the second optical portion 32 are both diffusion plates and are used for diffusing light, so as to mix the light emitted from the first light source module 21 and the second light source module 31 and perform the functions of softening light, preventing glare and performing secondary shaping on the light, so that the light emitted from the first light source module 21 and the second light source module 31 is more uniform. Since the first and

second sidewalls

12 and 13 do not extend the same length, the first and

second optics

22 and 32 are located in different planes.

Further, when the second light source module 31 emits light indirectly, the emitted light of the second light source module 31 may generate total reflection on the surface of the second optical portion 32, in order to eliminate the total reflection, a microstructure 33 is further disposed on the outer side of the second optical portion 32, and the microstructure 33 includes a plurality of annular saw-tooth structures concentrically disposed, so as to destroy the total reflection condition on the surface of the second optical portion 32 to change the light path of the emitted light, thereby improving the illuminance uniformity and the illumination efficiency of the table lamp 100.

Specifically, the microstructures 33 are formed on the surface of the second optical portion 32 by laser dotting or silk-screen printing, and of course, the microstructures 33 may be disposed on the inner side or the outer side of the second optical portion 32, which is not limited herein.

To sum up, the utility model discloses set up two sets of illumination areas, when providing professional illumination, also can provide the atmosphere illumination to through the luminous and reflector 40 cooperation of side, control light trend that can be better improves irradiant homogeneity.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and equivalent arrangements can be made without departing from the spirit and scope of the present invention.

Claims

1. A desk lamp (100), characterized in that: comprises a lamp shell (10), a support rod (101) and a base (102), wherein the support rod (101) is fixedly connected with the base (102), the lamp shell (10) can rotate relative to the support rod (101), the lamp shell (10) comprises a bottom plate (11), a first cavity (20) and a second cavity (30) are formed in the lamp shell (10), the plane of the opening of the first cavity (20) is parallel to the plane of the opening of the second cavity (30), a first light source module (21) which emits light towards the opening of the first cavity (20) is arranged in the first cavity (20), the second cavity (30) is arranged around the first cavity (20), a second light source module (31) is arranged in the second cavity (30), the light emitted by the second light source module (31) is reflected and then emitted from the opening of the second cavity (30).

2. The desk lamp (100) of claim 1, wherein: the lamp housing (10) comprises a first side wall (12) formed between a first cavity (20) and a second cavity (30) and a second side wall (13) formed on the outer side of the second cavity (30), the first cavity (20) is formed by surrounding the first side wall (12), the second cavity (30) is formed by surrounding the first side wall (12) and the second side wall (13) together, and the second light source module (31) is arranged on the second side wall (13).

3. The desk lamp (100) of claim 2, wherein: the extension length of the first side wall (12) along the light emitting direction of the first light source module (21) is greater than the extension length of the second side wall (13) in the direction.

4. The desk lamp (100) of claim 2, wherein: a reflector (40) is arranged between the first side wall (12) and the second side wall (13), the reflector (40) is formed on the bottom plate (11) and located in the second cavity (30), and the reflector (40) is provided with a reflecting curved surface facing the second light source module (31).

5. The desk lamp (100) of claim 1, wherein: the desk lamp (100) further comprises a first optical part (22) and a second optical part (32) which are used for diffusing light rays, the first optical part (22) is arranged at the opening of the first cavity (20), the second optical part (32) is arranged at the opening of the second cavity (30), and the first optical part (22) and the second optical part (32) are located on different planes.

6. The desk lamp (100) of claim 5, wherein: the outer side of the second optical part (32) is further provided with a microstructure (33) used for changing a light path, and the microstructure (33) comprises a plurality of annular sawtooth structures which are concentrically arranged.

7. The desk lamp (100) of claim 6, wherein: the microstructures (33) are formed on the surface of the second optical portion (32) through laser dotting or silk-screen printing.

8. The desk lamp (100) of claim 1, wherein: the light emitting direction of the first light source module (21) is perpendicular to the light emitting direction of the second light source module (31).

9. A desk lamp (100), characterized in that: comprises a lamp shell (10), a support rod (101) and a base (102), wherein the support rod (101) is fixedly connected with the base (102), the lamp shell (10) can rotate relative to the support rod (101), the lamp shell (10) comprises a bottom plate (11), a first cavity (20) and a second cavity (30) are formed in the lamp shell (10), the plane of the opening of the first cavity (20) is parallel to the plane of the opening of the second cavity (30), a first light source module (21) is arranged in the first cavity (20), the second cavity (30) is arranged around the first cavity (20), a second light source module (31) which emits light towards the opening of the second cavity (30) is arranged in the second cavity (30), the light emitted by the first light source module (21) is reflected and then emitted from the opening of the first cavity (20).

10. The desk lamp (100) of claim 9, wherein: the light emitting direction of the second light source module (31) is parallel to the light emitting direction of the first light source module (21).