CN211694468U

CN211694468U - Desk lamp

Info

Publication number: CN211694468U
Application number: CN201922176848.0U
Authority: CN
Inventors: 黄芳; 林建宗; 陈云伟
Original assignee: Xiamen Lidaxin Lighting Co ltd
Current assignee: Xiamen Lidaxin Lighting Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-10-16
Anticipated expiration: 2029-12-06

Abstract

The utility model provides a desk lamp, which comprises a lamp shell, a light source and a reflecting piece; the lamp shell is in a straight line or a broken line shape and is provided with a bottom surface facing the desktop; the light source is arranged on one side of the bottom surface along the width direction and comprises a substrate with the length extending direction consistent with that of the lamp shell and a plurality of lamp beads arranged at intervals along the length direction; the bottom surface is located to the reflection part along width direction's opposite side, and the top that the reflection part deviates from the desktop is connected with the bottom surface, the reflection part has the plane of reflection relative with the play plain noodles of light source, the plane of reflection includes the arc portion of neighbouring lamp body and keeps away from the lamp body and the rake that links up with arc portion, the relative light source indent of arc portion, the rake is along the slope to the light source in the direction towards the lamp body, the light that the light source sent is once directed towards the desktop after the indirect reflection of arc portion secondary and rake. The technical scheme of the utility model can reach the great effect of no glare, illuminance uniformity and irradiation range to desk lamp area itself is little, and it is more convenient to use.

Description

Desk lamp

Technical Field

The utility model belongs to the technical field of lamps and lanterns, especially, relate to a desk lamp.

Background

In today's learning and work, table lamps are used in many situations. However, in the existing common table lamp on the market, due to the problems in light source and structural design, there are also disadvantages of glare, uneven illumination, and insufficient illumination range, so that when the table lamp works and studies, the image is blurred, reading is hard, people feel uncomfortable, and the problems of eye fatigue, reduced reading efficiency, even soreness and headache of eyes are easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a desk lamp, it aims at solving current desk lamp and has glare, illuminance evenly enough and the less problem of irradiation range.

The utility model provides a desk lamp, include:

the lamp shell is linear or broken line-shaped and is provided with a bottom surface facing the desktop;

the light source is arranged on one side of the bottom surface along the width direction and comprises a substrate and a plurality of lamp beads, the length extension direction of the substrate is consistent with that of the lamp shell, and the plurality of lamp beads are arranged on the substrate at intervals along the length direction of the substrate; and the number of the first and second groups,

the reflecting piece is arranged on the other side of the bottom surface in the width direction, the top end of the reflecting piece, which is far away from the desktop, is connected with the bottom surface, the reflecting piece is provided with a reflecting surface opposite to the light emitting surface of the light source, the reflecting surface comprises an arc-shaped part which is adjacent to the lamp housing and an inclined part which is far away from the lamp housing and is connected with the arc-shaped part, and the arc-shaped part is concave inwards relative to the light source so as to realize secondary indirect reflection of light emitted by the light source; the inclined part inclines towards the light source along the direction towards the lamp shell so as to realize one-time direct reflection of light emitted by the light source.

Optionally, the arc portion is smoothly joined with the inclined portion.

Optionally, the radian range of the arc-shaped part is 15 ± 2rad, and the corresponding angle range of the arc-shaped part is 104 ± 5 °.

Optionally, an included angle a is formed between the inclined portion and a vertical direction perpendicular to the table top, and an angle range of the included angle a is 8 ± 2 °.

Optionally, an included angle B is formed between the base plate and a vertical direction perpendicular to the tabletop, and an angle range of the included angle B is 3 ± 0.5 °.

Optionally, the desk lamp further comprises a diffusion plate installed on the bottom surface and located between the reflection surface and the light source, and a length extending direction of the diffusion plate is consistent with the substrate.

Optionally, the width of the diffusion plate is larger than that of the substrate, and the diffusion plate is parallel to the substrate at intervals.

Optionally, the bottom surface has the installation region of neighbouring edge, be equipped with the tank bottom on the installation region and all face the reflector surface and length extending direction all with first mounting groove, second mounting groove and the compartment groove that the lamp body is unanimous, the compartment groove is located the tank bottom of first mounting groove, the second mounting groove is located the tank bottom of compartment groove, the first spacing groove that supplies the spacing card of the side reason of diffuser plate puts is respectively concavely equipped with on the double-phase internal wall surface of first mounting groove, the second spacing groove that supplies the spacing card of the side reason of base plate puts is respectively concavely equipped with on the double-phase internal wall surface of second mounting groove.

Optionally, the lamp housing is arranged with at least one end along the length direction open, and the reflection member is slidably clamped with the bottom surface.

Optionally, the desk lamp further comprises a light guide plate, the length extending direction of the light guide plate is consistent with that of the reflecting piece, and the light guide plate faces towards the upper end of the bottom face and the reflecting piece faces towards the lower end of the desktop and is detachably connected with the lower end of the desktop.

Based on the structural design, in the technical scheme of the utility model, because the light source is arranged on one side of the bottom surface of the lamp shell along the width direction, the other side is provided with the reflecting piece, and the reflecting piece is provided with the reflecting surface opposite to the light source, when the desk lamp is used, the light emitting surface of the light source is deviated from a user of the desk lamp, thereby avoiding the direct glare of the light source directly opposite to eyes; further, most of the light emitted from the light source can be reflected for the second time through the arc-shaped part of the emitting surface, and the small part can be reflected directly through the first time of the inclined part, so that the propagation direction of the light can be effectively changed, the anti-glare effect can be achieved, and the light in the area with higher light concentration degree can be dispersed more uniformly through the effect of multiple reflections, so that the effect of uniform illumination is achieved, the irradiation range is very large, and the level A of the lighting standard of the reading desk lamp can be achieved. In addition, this desk lamp is the mode of unilateral illumination, more is applicable to the desktop that single person used, when the desk lamp was placed and is kept away from human opposite side at the desktop, owing to have anti-dazzle, the illumination intensity is even and irradiation range is big characteristics, so not only can obtain fine light environment, and its area is little, and it is more convenient to use.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a desk lamp provided by an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the direction S-S in FIG. 1;

FIG. 3 is an enlarged schematic view at E in FIG. 2;

fig. 4 is an illuminance diagram of the desk lamp provided by the embodiment of the present invention when light irradiates on the desk.

The reference numbers illustrate:

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be noted that the terms of left, right, upper and lower directions in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, and should not be considered as limiting.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

An embodiment of the utility model provides a desk lamp.

Referring to fig. 2 and 3, in an embodiment, the desk lamp includes a lamp housing 100, a light source 200, and a reflector 300. Wherein, the lamp housing 100 is linear or broken line type and has a bottom surface 110 facing the table top; the light source 200 is arranged on one side of the bottom surface 110 along the width direction, the light source 200 comprises a substrate 210 and a plurality of lamp beads 220, the length extension direction of the substrate 210 is consistent with that of the lamp housing 100, and the plurality of lamp beads 220 are arranged on the substrate 210 at intervals along the length direction; the reflecting piece 300 is arranged on the other side of the bottom surface 110 along the width direction, the top end of the reflecting piece 300 departing from the desktop is connected with the bottom surface 110, the reflecting piece 300 is provided with a reflecting surface 310 opposite to the light-emitting surface of the light source 200, the reflecting surface 310 comprises an arc-shaped part 311 adjacent to the lamp housing 100 and an inclined part 312 far away from the lamp housing 100 and connected with the arc-shaped part 311, and the arc-shaped part 311 is concave inwards relative to the light source 200 to realize secondary indirect reflection of light rays emitted by the light source 200; the inclined portion 312 is inclined toward the light source 200 in a direction toward the lamp housing 100 for realizing a direct reflection of the light emitted from the light source 200.

Based on the structural design, in the embodiment, since the light source 200 is disposed on one side of the bottom surface 110 of the lamp housing 100 along the width direction, the reflective member 300 is disposed on the other side, and the reflective member 300 is disposed with the reflective surface 310 opposite to the light source 200, when the desk lamp is used, the light emitting surface of the light source 200 is away from the user of the desk lamp, so as to prevent the light source 200 from directly generating direct glare towards the eyes; further, most of the light emitted from the light source 200 is reflected by the arc portion 311 of the emitting surface for the second time, and the small part of the light is reflected by the inclined portion 312 for the first time, so that the propagation direction of the light can be effectively changed, and not only the anti-glare effect can be achieved, but also the light in the area with high light concentration can be dispersed more uniformly through the effect of multiple reflections, and further the effect of uniform illumination can be achieved, and the irradiation range is very large, and the level A of the lighting standard of the reading desk lamp can be achieved. Particularly, in the illuminance chart shown in fig. 4, the desk lamp can illuminate a desktop of 800mm, the illumination range is large, and the illuminance is uniform. In addition, this desk lamp is the mode of unilateral illumination, more is applicable to the desktop that single person used, when the desk lamp was placed and is kept away from human opposite side at the desktop, owing to have anti-dazzle, the illumination intensity is even and irradiation range is big characteristics, so not only can obtain fine light environment, and its area is little, and it is more convenient to use.

Referring to fig. 2, in the present embodiment, preferably, the arc portion 311 and the inclined portion 312 are smoothly connected, so that there is no protrusion or recess between the arc portion 311 and the inclined portion 312, and glare is less likely to be generated and the uniformity of the reflected light is better.

Further, as shown in fig. 1 to 3, the direction perpendicular to the table surface is a downward direction, the lamp housing 100 has a top surface opposite to the bottom surface 110, the top surface of the lamp is disposed in an arc shape bent downward in a direction away from the reflector 300, and the top surface of the reflector 300 is also matched with the bottom surface 110 of the lamp housing 100 in shape. In addition, the desk lamp further comprises two oppositely arranged pillars 600, of course, in other embodiments, the number of the pillars 600 is not limited to two, and may be three or more, the upper ends of the pillars 600 are connected with the end portions of the lamp housing 100, and the lower ends are connected with the desk top, so as to realize stable placement of the desk lamp.

Referring to fig. 2, in the present embodiment, the curvature range of the arc portion 311 is 15 ± 2rad, and the corresponding angle range of the arc portion 311 is 104 ± 5 °. The optimal radian range of the arc part 311 is 15rad, that is, the arc part 311 is approximately the radian r15, and the optimal radian C is 104 °. And furthermore, an included angle A is formed between the inclined part 312 and the vertical direction perpendicular to the desktop, the angle range of the included angle A is 8 +/-2 degrees, the length range of the inclined part 312 is preferably 30 +/-3 mm, and the optimal value is 30 mm. Here, in order to improve the surface diffuse reflection performance of the reflector 300, a high white paint may be sprayed on the surface of the reflector 300, and the surface diffuse reflection rate thereof is required to be in a preferred range of 80% ± 2.

Referring to fig. 2, in the present embodiment, an angle B is formed between the substrate 210 and a vertical direction perpendicular to the table top, and the angle range of the angle B is preferably 3 ± 0.5 °, although the optimal angle value is 3 °. It can be understood that the substrate 210 is placed in a vertical direction, i.e. at an included angle B of 0 °, the optical efficiency is reduced, and if the included angle B is larger, the light may overflow the reflector 300, so that too much light may reach the lower part of the reflector, e.g. the light guide plate 500, and glare uncomfortable to see is formed.

Referring to fig. 2, in the present embodiment, the desk lamp further includes a diffusion plate 400 installed on the bottom surface 110 and located between the reflection surface 310 and the light source 200, and a length extending direction of the diffusion plate 400 is consistent with the substrate 210. In this way, the light emitted from the light source 200 is diffused by the diffusion plate 400 and then reaches the corresponding reflective surface 310 for reflection, and the reflected light illuminates the table top again, in other words, the diffusion plate 400 is disposed in front of the light source 200, which has the effect of further preventing glare and improving uniformity of illuminance. The diffuser 400 is milky white, and has a light transmittance of 90% +/-2 and a haze of 90% +/-2.

Further, as shown in fig. 3, the diffusion plate 400 has a width larger than that of the substrate 210, and the diffusion plate 400 is spaced from and parallel to the substrate 210. In other words, the inclination angle of the diffusion plate 400 is consistent with that of the substrate 210, so that the light emitted from the light source 200 can be totally diffused by the diffusion plate 400 and then emitted, and further the illumination uniformity can be further improved and the light can be softer.

Referring to fig. 3, in the present embodiment, the bottom surface 110 has an installation area adjacent to the edge, the installation area is provided with a first installation groove 111, a second installation groove 112 and a spacing groove 113, the groove bottoms of the first installation groove 111, the second installation groove 112 and the spacing groove 113 all face the reflection surface 310 and the length extension direction of the first installation groove, the spacing groove 113 is provided at the groove bottom of the first installation groove 111, the second installation groove 112 is provided at the groove bottom of the spacing groove 113, two inner walls of the first installation groove 111 are respectively provided with a first limiting groove for limiting the side edge of the diffusion plate 400, and two inner walls of the second installation groove 112 are respectively provided with a second limiting groove for limiting the side edge of the substrate 210. Here, the spacing groove 113 is used to provide a gap between the light source 200 and the diffusion plate 400, so as to facilitate heat dissipation of the light source 200 and prevent the diffusion plate 400 from being damaged by heat. In actual installation, due to the arrangement of the first installation groove 111 and the second installation groove 112, the corresponding parts are pushed into the corresponding grooves after being aligned, and the assembly process is very convenient. Of course, the design is not limited thereto, and in other embodiments, the diffusion plate 400 and the light source 200 may be mounted on the mounting area of the lamp housing 100 by, but not limited to, bonding, clipping, or screwing.

Referring to fig. 2, in the present embodiment, at least one end of the lamp housing 100 along the length direction is open, and the reflector 300 is slidably engaged with the bottom surface 110. The middle of the bottom surface 110 is provided with a sliding protrusion 120 protruding toward the desk and extending along the length direction of the lamp housing 100, and the top of the reflector 300 facing the bottom surface 110 is provided with a sliding groove 330 for the sliding protrusion 120 to slide into the clamping connection. Specifically, the middle portion of the bottom surface 110 is provided with an inverted T-shaped sliding protrusion 120 protruding toward the desk surface and extending along the length direction of the lamp housing 100, the top portion of the reflection member 300 facing the bottom surface 110 is provided with a sliding groove 330 which is also arranged in an inverted T shape and can allow the sliding protrusion 120 to slide into the sliding groove 330 in a matching and clamping manner, and when the lamp housing is actually installed, the sliding protrusion 120 can be inserted into the sliding groove 330 and then pushed to the bottom by force to be installed in place. However, the design is not limited thereto, and in other embodiments, the sliding groove 330 and the sliding protrusion 120 may have other shapes, such as but not limited to L-shape, inverted triangle, inverted trapezoid, etc. In actual installation, the sliding protrusion 120 can be inserted into the sliding slot 330 and then pushed to the bottom by force to be installed in place. Of course, in other embodiments, the reflector 300 and the lamp housing 100 can be mounted by, but not limited to, bonding, clipping, or screwing, but the sliding mounting in this embodiment has the advantage of convenient assembly. In addition, in this embodiment, because both ends along length direction of lamp body 100 are all uncovered and set up, so this desk lamp still includes the side cap 700 that closes with the both ends adaptation of lamp body 100, so not only can make the desk lamp whole more pleasing to the eye, can also prevent that dust etc. from getting into inside lamp body 100.

Further, as shown in fig. 1 to 3, in the present embodiment, the desk lamp further includes a light guide plate 500, a length extending direction of the light guide plate 500 is identical to that of the reflector 300, and an upper end of the light guide plate 500 facing the bottom surface 110 is detachably connected to a lower end of the reflector 300 facing the desk top. Specifically, as shown in fig. 3, a first inner cavity 320 that is open downward is disposed at the lower end of the reflector 300, a protruding rib 321 that extends along the length direction of the reflector 300 is convexly disposed on the two opposite inner walls of the first inner cavity 320, a corresponding slot 510 is disposed at the upper end of the two opposite side surfaces of the light guide plate 500, one end or two ends of the reflector 300 along the length direction are open, and in actual installation, only the protruding rib 321 and the slot 510 on the corresponding side need to be aligned, and then the light guide plate 500 is pushed forward. Here, the light guide plate 500 is made of a transparent material, and the height range of the reflector 300 exposed downward is preferably 42 ± 5mm, and when most of the light is reflected by the emitting surface, a small portion of the light reaches the light guide plate 500, so that the light guide plate 500 has a small portion of stray light spots to function as ambient light, thereby further improving the light environment. In addition, a space is formed between the upper end of the assembled light guide plate 500 and the cavity top surface of the first inner cavity 320, and the space is configured to facilitate the adjustment of the exposed height of the light guide plate 500 as required.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A desk lamp, comprising:

2. The desk lamp of claim 1 wherein said arcuate portion is in smooth engagement with said inclined portion.

3. The desk lamp as claimed in claim 2, wherein the arc range of the arc portion is 15 ± 2rad, and the corresponding angle range of the arc portion is 104 ± 5 °.

4. The desk lamp as claimed in claim 2, wherein the inclined portion has an angle a with a vertical direction perpendicular to the desk top, and the angle a is in a range of 8 ± 2 °.

5. The desk lamp as claimed in claim 1, wherein the base plate has an angle B with a vertical direction perpendicular to the desk top, and the angle B is in a range of 3 ± 0.5 °.

6. The desk lamp of claim 5, further comprising a diffuser plate mounted on the bottom surface between the reflective surface and the light source, wherein the diffuser plate has a length extending in a direction that is coincident with the base plate.

7. The desk lamp of claim 6 wherein said diffuser plate has a width greater than said base plate and is spaced parallel to said base plate.

8. The desk lamp as claimed in claim 6, wherein the bottom surface has a mounting region adjacent to the edge, the mounting region has a first mounting groove, a second mounting groove and a spacing groove, the first mounting groove, the second mounting groove and the spacing groove are disposed on the mounting region, the first mounting groove, the second mounting groove and the spacing groove are disposed on the reflective surface, the length of the first mounting groove and the length of the second mounting groove are identical to the length of the lamp housing, the spacing groove is disposed on the bottom of the first mounting groove, the second mounting groove is disposed on the bottom of the spacing groove, the first limiting groove is recessed on each of two inner walls of the first mounting groove for limiting the side edge of the diffuser plate, and the second limiting groove is recessed on each of two inner walls of the second mounting groove for.

9. The desk lamp as claimed in claim 1, wherein the lamp housing is open at least one end along the length direction, and the reflector is slidably engaged with the bottom surface.

10. The desk lamp according to any one of claims 1 to 9, further comprising a light guide plate, wherein the light guide plate has a length extending in a direction corresponding to the reflector, and an upper end of the light guide plate facing the bottom surface is detachably connected to a lower end of the reflector facing the desk top.