Shadow-free lamp structure

Abstract

The utility model discloses a shadow-free lamp structure which comprises a lamp shell with an irradiation opening, an illumination cavity for containing a light source is formed in the lamp shell, a light-permeable lampshade is arranged at the irradiation opening of the lamp shell, and light emitted by the light source irradiates outwards through the bottom wall of the lampshade. A first matching part is arranged on the inner side of the irradiation opening of the lamp shell, a second matching part is arranged on the outer side of the lampshade, and the first matching part of the lamp shell is matched with the second matching part of the lampshade so as to seal a gap formed between the side wall of the lamp shell and the side wall of the lampshade; light leakage can be avoided, formation of annular light spots is effectively restrained, and therefore the lighting quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lamp structure, in particular to a no shadow lamp structure. BACKGROUND

[0002] The lamp is a tool for providing illumination, which can be installed indoors or outdoors; the lamp comprises a lamp shell, a light source and a light-transmissible lampshade; the lamp shell has an irradiation opening; the light source is installed in the lamp shell through the irradiation opening; in order to avoid the generation of shadows, a light-transmissible lampshade is generally arranged at the irradiation opening of the lamp shell; the lampshade can scatter the light emitted by the light source outward.

[0003] In order to facilitate installation, the size of the irradiation opening of the lamp shell is larger than the size of the lampshade; a gap is formed between the installed lamp shell and the lampshade; the light emitted by the light source can illuminate the entire gap through the side wall of the lampshade and directly overflow outward through the gap; since the gap is small, a large amount of light is concentrated, which results in that the brightness of the light overflowing from the gap is obviously larger than the brightness of the light passing through the bottom wall of the lampshade, thereby forming a clear annular light spot, i.e., the generation of light leakage phenomenon, which reduces the illumination quality, causes the center of the illuminated object to be dark and the periphery to be bright, and long-time irradiation can cause the eyes of the user to be uncomfortable. SUMMARY

[0004] The utility model aims at providing a no shadow lamp structure, which can avoid the generation of light leakage, effectively suppress the formation of annular light spot, and thus improve the illumination quality.

[0005] The utility model discloses the purpose through the following technical scheme:

[0006] A no shadow lamp structure comprises a lamp shell with an irradiation opening; a light-irradiation cavity for accommodating a light source is formed in the lamp shell; a light-transmissible lampshade is arranged at the irradiation opening of the lamp shell; the light source emits light outward through the bottom wall of the lampshade; a first matching part is arranged at the inner side of the irradiation opening of the lamp shell; a second matching part is arranged at the outer side of the lampshade; the first matching part of the lamp shell and the second matching part of the lampshade are matched with each other to close the gap formed between the side wall of the lamp shell and the side wall of the lampshade.

[0007] On the basis of the above technical scheme, the utility model can be improved as follows:

[0008] Further, the first matching part is an annular groove, which is arranged at the inner side of the side wall of the irradiation opening of the lamp shell;

[0009] The second matching part is an annular flange, which is arranged at the joint of the bottom wall and the side wall of the lampshade;

[0010] The lampshade is sleeved in the lamp shell; the annular flange of the lampshade and the annular groove of the lamp shell are matched with each other.

[0011] Further, the annular groove of the lamp shell is provided with a first matching surface at the matching side, and the annular flange of the lampshade is provided with a second matching surface at the matching side, the first matching surface and the second matching surface are wedge-shaped surfaces which can be matched together when the annular flange and the annular groove match with each other.

[0012] Further, the side wall of the lampshade is provided with a clasp at one end away from the bottom wall, and the light source is provided with a buckle at the edge of the light-emitting end; the clasp of the lampshade and the buckle of the light source form a lock structure to fix the lampshade in the lamp shell and make the first matching surface of the annular groove and the second matching surface of the annular flange match with each other.

[0013] Further, the bottom end of the side wall of the lampshade and the bottom wall are spliced with each other, and the side wall and the bottom wall of the lampshade are provided with splicing surfaces which can be bonded together when spliced.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model discloses a first matching part is arranged at the inner side of the irradiation port of the lamp shell, and a second matching part is arranged at the outer side of the lampshade, the first matching part of the lamp shell and the second matching part of the lampshade are matched with each other, the gap between the side wall of the lamp shell and the side wall of the lampshade can be closed, light leakage is avoided, the annular light spot formation is effectively inhibited, and the illumination quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be explained in further detail below by combining with the drawings and specific embodiments

[0017] Figure 1 It is the dismounting drawing of example shadowless lamp structure;

[0018] Figure 2 It is the internal structure schematic view of example shadowless lamp structure;

[0019] Figure 3 It is Figure 2 It is the A place partial close-up of of;

[0020] Figure 4 It is the schematic view of the annular groove with rectangular section and the annular flange with rectangular section matched with each other.

[0021] Markings on the drawings: 1-lamp shell, 101-annular groove, 2-light source, 3-lampshade, 301-annular flange, 4-clasp, 5-buckle. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application are further described below with reference to the drawings. The description of these embodiments is intended to assist in understanding the present application, but is not intended to limit the present application. Furthermore, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0023] Referring to Figures 1 to 3 The present embodiment relates to a shadowless lamp structure, which comprises a lamp shell 1 and a light source 2 arranged in the lamp shell 1 and capable of emitting light; the lamp shell 1 has an irradiation opening and a side wall extending around the irradiation opening, and a light-transmissive lamp shade 3 is arranged at the irradiation opening; the lamp shade 3 has a bottom wall and a side wall extending around the bottom wall; the lamp shell 1 forms a light irradiation cavity inside to accommodate the light source 2; the light source 2 can emit light in the light irradiation cavity inside the lamp shell 1 and irradiate outward through the bottom wall of the lamp shade 3.

[0024] In actual assembly, in order to facilitate installation, the inner diameter of the lamp shell 1 is slightly larger than the outer diameter of the lamp shade 3; at this time, a gap is formed between the side wall of the lamp shell 1 and the side wall of the lamp shade 3, and part of the light emitted by the light source 2 can irradiate on the side wall of the lamp shell 1 through the side wall of the lamp shade 3, resulting in that the entire gap is illuminated to form light leakage; therefore, a first matching part is arranged inside the lamp shell 1 at the irradiation opening, and a second matching part is arranged outside the lamp shade 3; the first matching part and the second matching part are matched with each other to close the gap and prevent light leakage.

[0025] Specifically, the lamp shell 1 is a conical shell structure with a sharp top and a round bottom; the bottom end of the lamp shell 1 forms a circular irradiation opening, and a conical side wall extends around the irradiation opening; the light source 2 is fixedly arranged in the light irradiation cavity inside the lamp shell 1 through the irradiation opening, and the light emitting end of the light source 2 faces the irradiation opening of the lamp shell 1; the lamp shade 3 is sleeved in the lamp shell 1; according to actual needs, the shape of the lamp shell 1 in the present embodiment can also be replaced by other suitable shapes for installing the light source 2 and the lamp shade 3, such as a rectangular or cylindrical lamp shell 1.

[0026] The lamp shade 3 is a horn-shaped cover body structure with a narrow top and a wide bottom; the lamp shade 3 has a circular bottom wall, and a horn-shaped side wall extends around the bottom wall; when the lamp shade 3 is sleeved in the lamp shell 1, the side wall of the lamp shade 3 extends into the irradiation cavity inside the lamp shell 1 at an end away from the bottom wall to connect the light source 2, and the light emitting end of the light source 2 is opposite to the bottom wall of the lamp shade 3; according to actual needs, the shape of the lamp shade 3 in the present embodiment can also be replaced by other suitable shapes for closing the irradiation opening of the lamp shell 1, such as a rectangular or circular cover-shaped lamp shade 3.

[0027] The side wall of the lamp shell 1 is provided with a ring-shaped groove 101 at the side of the illumination opening, which is a first matching part; the side wall of the lamp cover 3 is provided with a ring-shaped flange 301 at the joint of the bottom wall and the side wall, which is a second matching part; when the lamp cover 3 is sleeved in the lamp shell 1, the ring-shaped flange 301 on the lamp cover 3 matches with the ring-shaped groove 101 on the lamp shell 1 to seal the gap between the side wall of the lamp shell 1 and the side wall of the lamp cover 3.

[0028] The inner side of the ring-shaped groove 101 on the lamp shell 1 is provided with a first matching surface, which is a wedge-shaped surface with gradually decreasing diameter from the bottom to the top of the lamp shell 1; the outer side of the ring-shaped flange 301 on the lamp cover 3 is provided with a second matching surface, which is a wedge-shaped surface with gradually decreasing diameter from the bottom to the top of the lamp cover 3; when the ring-shaped flange 301 on the lamp cover 3 matches with the ring-shaped groove 101 on the lamp shell 1, the first matching surface and the second matching surface are matched together to seal the gap between the side wall of the lamp shell 1 and the side wall of the lamp cover 3, preventing light leakage.

[0029] According to actual conditions, the ring-shaped groove 101 on the lamp shell 1 and the ring-shaped flange 301 on the lamp cover 3 can also be replaced by other suitable shapes that can seal the gap after matching; however, it should be noted that the ring-shaped groove 101 on the lamp shell 1 should avoid being a ring-shaped groove 101 with a rectangular cross-section, and the ring-shaped flange 301 on the lamp cover 3 should also avoid being a ring-shaped flange 301 with a rectangular cross-section (see Figure 4 ), because the ring-shaped groove 101 and the ring-shaped flange 301 form a clear step structure, which causes the light intensity of the light passing through the edge of the lamp cover 3 to be less than the light intensity of the light passing through the non-edge, which is easy to form a dark shadow.

[0030] The side wall of the lamp cover 3 is provided with a hook 4 at the end away from the bottom wall, and the edge of the light source 2 at the light-emitting end is provided with a buckle 5; the hook 4 on the lamp cover 3 and the buckle 5 on the light source 2 form a locking structure to fix the lamp cover 3 in the lamp shell 1, and the first matching surface on the lamp shell 1 and the second matching surface on the lamp cover 3 are matched together, further improving the light leakage prevention performance.

[0031] In this embodiment, the bottom end of the side wall of the lamp cover 3 and the bottom wall are spliced together, and the side wall and the bottom wall of the lamp cover 3 are provided with a splicing surface that can be bonded together by adhesive when spliced; compared with the prior art, which uses one-piece molding and is limited by the actual mold manufacturing process, the connection between the side wall and the bottom wall of the lamp cover 3 needs to be transitioned by a round corner, making it difficult to maintain the overall thickness of the lamp cover 3 consistent; in this embodiment, the splicing method is used, which does not need to be transitioned by a round corner, and can maintain the overall thickness of the lamp cover 3 consistent, effectively avoiding the occurrence of dark shadows or black edges.

[0032] The above embodiments of the utility model are not the limitation of the protection scope of the utility model, and the implementation mode of the utility model is not limited to this, and according to the above content of the utility model, according to the ordinary technical knowledge and usual means in the field, other various forms of modification, replacement or change of the above structure of the utility model are made without departing from the above basic technical thought of the utility model, and all should fall within the protection scope of the utility model.

Claims

1. A shadowless lamp structure comprising a lamp housing having a light emission opening, characterized in that, The lamp shell forms a light irradiation cavity for accommodating the light source. The lamp shell is provided with a light-transmissive lampshade at the irradiation opening. The light source emits light which is irradiated outward through the bottom wall of the lampshade. The lamp shell is provided with a first matching part inside the irradiation opening. The lampshade is provided with a second matching part outside. The first matching part of the lamp shell and the second matching part of the lampshade are matched with each other to close the gap between the side wall of the lamp shell and the side wall of the lampshade.

2. The shadowless lamp structure of claim 1, wherein The first matching part is an annular groove which is arranged inside the side wall of the lamp shell at the irradiation opening. The second matching part is an annular flange which is arranged at the joint of the bottom wall and the side wall of the lampshade. The lampshade is sleeved in the lamp shell. The annular flange of the lampshade is matched with the annular groove of the lamp shell.

3. The shadowless lamp structure of claim 2, wherein, The annular groove of the lamp shell is provided with a first matching surface at the matching side. The annular flange of the lampshade is provided with a second matching surface at the matching side. The first matching surface and the second matching surface are wedge-shaped surfaces which can be matched with each other when the annular flange and the annular groove are matched with each other.

4. The shadowless lamp structure of claim 3, wherein The side wall of the lampshade is provided with a clasp at the end away from the bottom wall. The light source is provided with a buckle at the edge of the light-emitting end. The clasp of the lampshade and the buckle of the light source are matched with each other to form a lock structure. The lampshade is fixedly sleeved in the lamp shell. The first matching surface of the annular groove and the second matching surface of the annular flange are matched with each other.

5. The shadowless lamp structure according to any one of claims 1-4, characterized in that, The bottom end of the side wall of the lampshade and the bottom wall are spliced with each other. The side wall and the bottom wall of the lampshade are provided with splicing surfaces which can be bonded together when spliced.

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