CN220061541U - Reflector, lamp cap and flashlight - Google Patents

Abstract

The embodiment of the utility model belongs to the technical field of illumination, and relates to a reflector which is arranged in a lamp cap and used for reflecting light rays emitted by a light source, wherein the reflector comprises a bottom plate and a side plate, and the side plate is arranged around the bottom plate to form a reflecting cavity; at least two positioning pieces are arranged on one surface of the bottom plate, which is far away from the side plate, and each positioning piece is distributed in a circumferential array around the center of the bottom plate; the positioning piece is used for limiting the reflector to rotate around the axis of the reflector or limiting the reflector to transversely move relative to the lamp holder. The utility model also relates to a lamp cap and a flashlight. The technical scheme provided by the utility model can realize that the reflector can be accurately positioned and mounted on the lamp holder, so that the focusing effect of the reflector is improved, and the light emitting quality of the flashlight is improved.

Description

Reflector, lamp cap and flashlight

Technical Field

The utility model relates to the technical field of illumination, in particular to a reflector, a lamp cap and a flashlight.

Background

As LED chips and packaging processes mature, LED brightness requirements are adequate to meet the needs of various lighting areas, and LED solid state photographs have become a trend of market demand.

At present, a common flashlight generally adopts a combination mode of a reflector and an LED light source, but the existing reflector is generally directly installed in an installation cavity of a lamp cap, the reflector can shake relative to the lamp cap in the installation cavity, accurate positioning and fixing cannot be realized, the focusing effect of the reflector is poor, and the light emitting quality of the flashlight is affected.

Disclosure of Invention

The technical problem to be solved by the embodiment of the utility model is that the reflector of the existing flashlight is easy to shake in the mounting cavity, the focusing effect of the reflector is poor, and the light emitting efficiency of the flashlight is affected.

In order to solve the above technical problems, an embodiment of the present utility model provides a reflector, which adopts the following technical schemes:

the reflector is arranged in the lamp cap and used for reflecting light rays emitted by the light source, and comprises a bottom plate and side plates, wherein the side plates are arranged around the bottom plate to form a reflecting cavity;

at least two positioning pieces are arranged on one surface of the bottom plate, which is far away from the side plate, and each positioning piece is distributed in a circumferential array around the center of the bottom plate;

the positioning piece is used for limiting the reflector to rotate around the axis of the reflector or limiting the reflector to transversely move relative to the lamp holder.

Further, a light inlet hole is formed in the center of the bottom plate in a penetrating mode;

the bottom plate is far away from one side of the side plate and is provided with three positioning pieces, and the three positioning pieces are distributed in a regular triangle with the center of the light inlet hole as the center.

Further, the locating piece comprises a first locating pin and a second locating pin, wherein a set included angle is formed between the first locating pin and the second locating pin, and the set included angle is smaller than 180 degrees.

Further, the cross section area of the positioning piece along the direction far away from the bottom plate is gradually reduced, and the longitudinal section of the positioning piece is conical or circular arc-shaped.

Furthermore, a plurality of fixing bone positions are arranged on one side of the side plate, which is opposite to the reflecting cavity, at intervals, and the fixing bone positions are used for limiting the reflector to axially move relative to the lamp holder.

Further, the side surface of the fixed bone far away from the side plate is an outward convex conical surface, and the included angle of the outward convex conical surface is more than 90 degrees and less than 180 degrees; or (b)

The side surface of the fixed bone position, which is far away from the side plate, is an arc surface, and the radian of the arc surface is smaller than 180 degrees.

Further, the reflecting cavity comprises a first opening and a second opening, and the bottom plate is connected with the second opening in a sealing way;

the side plate is positioned on the top surface of the first opening and is an inclined surface, and the inclined surface is obliquely arranged inwards.

Further, the fixing bone position is arranged on one side of the side plate close to the first opening;

the top surface of the fixed bone position, which is close to the first opening, is an outer convex conical surface, and the included angle of the outer convex conical surface is more than 90 degrees and less than 180 degrees; or (b)

The top surface of the fixed bone position, which is close to the first opening, is an arc surface, and the radian of the arc surface is smaller than 180 degrees.

The embodiment of the utility model also provides a lamp cap, which adopts the following technical scheme:

a lamp cap comprising a housing and a reflector as described above;

an installation cavity is formed in the shell, and at least two positioning holes are formed in the bottom of the installation cavity;

the reflector is arranged in the mounting cavity, and is positioned and fixed through corresponding matching of the positioning piece and the positioning hole.

The embodiment of the utility model also provides a flashlight, which adopts the following technical scheme:

a flashlight comprising a lamp cap as described above.

Compared with the prior art, the embodiment of the utility model has the following main beneficial effects:

the utility model provides a reflector, which is characterized in that a positioning piece is arranged on a bottom plate so as to realize that the reflector can be positioned and installed in a lamp holder, and meanwhile, the reflector is limited to rotate around an axis of the reflector or transversely move relative to the lamp holder or the lamp holder through the arrangement of the positioning piece, so that the positioning stability is improved, the reflector is ensured not to shake relative to the lamp holder, the focusing effect of the reflector is ensured, and the light emitting quality of a flashlight is improved.

Drawings

In order to more clearly illustrate the utility model or the solutions of the prior art, a brief description will be given below of the drawings used in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings can be obtained from them without the inventive effort of a person skilled in the art.

FIG. 1 is a schematic diagram of a reflector according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the structure at A with respect to FIG. 1;

FIG. 3 is a schematic view of another orientation of a reflector according to an embodiment of the present utility model;

FIG. 4 is a side view of a reflector of an embodiment of the present utility model;

FIG. 5 is a schematic view of a lamp head according to an embodiment of the present utility model;

FIG. 6 is a schematic cross-sectional view of a lamp head according to an embodiment of the utility model;

FIG. 7 is a schematic cross-sectional view of a flashlight according to an embodiment of the present utility model.

Reference numerals:

1. a reflector; 11. a bottom plate; 111. a positioning piece; 112. a light inlet hole; 12. a side plate; 121. fixing the bone position; 122. an inclined plane; 2. a lamp base; 21. a housing; 211. positioning holes; 22. an upper cover; 23. a lens; 24. a light emitting member; 3. a cylinder body.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Embodiments of the reflector of the utility model

Referring to fig. 1 to 5, an embodiment of the present utility model provides a reflector 1 installed in a lamp cap for reflecting light emitted by a light source, the reflector 1 comprising: a bottom plate 11 and side plates 12, said side plates 12 being arranged around said bottom plate 11 to form a reflective cavity.

The side of the bottom plate 11, which is far away from the side plate 12, is provided with at least two positioning pieces 111, a plurality of positioning pieces 111 are distributed in a circumferential array around the center of the bottom plate 11, and the positioning pieces 111 are used for limiting the reflector 1 to rotate around the axis of the reflector or to transversely move relative to the lamp holder.

According to the embodiment of the utility model, the positioning piece 111 is arranged on the bottom plate 11, so that the reflector 1 can be positioned and installed in the lamp holder, meanwhile, the reflector 1 is limited to rotate around the axis of the reflector 1 relative to the lamp holder through the arrangement of the positioning piece 111, the positioning stability is improved, the reflector 1 is ensured not to shake relative to the lamp holder, and the focusing effect of the reflector 1 is ensured.

Referring to fig. 3, in the present embodiment, a light entrance hole 112 is formed in the center of the bottom plate 11, three positioning members 111 are disposed on a surface of the bottom plate 11 away from the side plate 12, and the three positioning members 111 are distributed in a regular triangle with the center of the light entrance hole 112 as the center, and in the present embodiment, the reflector 1 can be stably fixed on the lamp base by the structural stability of the regular triangle.

Referring back to fig. 3, in some embodiments, the positioning member 111 includes a first positioning leg and a second positioning leg, where a set angle is formed between the first positioning leg and the second positioning leg, where the set angle is smaller than 180 °, in this embodiment, the second positioning leg is connected to a middle portion of the first positioning leg, the second positioning leg is perpendicular to the first positioning leg, and a cross section of the positioning member 111 is in a "convex" shape, in this embodiment, by using the positioning member 111 in the "convex" shape, connection stability of the positioning member 111 and the lamp holder during assembly can be improved, and an area of a positioning hole on the lamp holder can be reduced, so that a space occupied by the positioning member 111 occupies a circuit board, and space utilization is improved while connection stability is ensured. In other embodiments, the second positioning leg may be further connected to one end of the first positioning leg, and the cross section of the positioning member 111 is in a "l" shape or a "angle" shape.

Referring to fig. 4 and 5, the cross-sectional area of the positioning member 111 along the direction away from the bottom plate 11 is gradually reduced, so that the longitudinal section of the positioning member 111 is tapered or arc-shaped, so that the positioning member 111 can be guided to the corresponding hole of the lamp holder, and the installation efficiency of the reflector 1 is improved.

Referring to fig. 1 to 5, in some embodiments, a plurality of fixing ribs 121 are disposed at intervals on a side of the side plate 12 facing away from the reflective cavity, in this embodiment, a bearing boss is disposed in the lamp cap, and the fixing ribs 121 cooperate with the bearing boss to realize bearing installation of the reflector 1 and limit axial movement of the reflector 1 relative to the lamp cap.

Referring to fig. 2, in some embodiments, the side of the fixing bone 121 away from the side plate 12 is a convex conical surface, and the included angle of the convex conical surface is greater than 90 ° and less than 180 °; or the side surface of the fixing bone 121 far away from the side plate 12 is an arc surface, and the radian of the arc surface is less than 180 degrees.

According to the embodiment of the utility model, the design of the convex conical surface or the arc surface is adopted for the fixed bone position 121, so that when the reflector 1 is installed on the lamp holder, the contact area between the fixed bone position 121 and the inner wall of the lamp holder is reduced, the situation that the lamp holder can drive the reflector 1 to rotate or move due to the overlarge contact area in the assembly process is avoided, the installation stability of the reflector 1 is improved, the reflector 1 and the lamp holder are relatively static, the focusing stability of the reflector 1 is improved, in addition, the friction on the fixed bone position 121 is reduced, and the service life of the fixed bone position 121 is prolonged.

Referring to fig. 1 to 4, in some embodiments, the reflective cavity includes a first opening and a second opening, the bottom plate 11 is connected with the second opening in a sealing manner, and in this embodiment, the diameter of the first opening is larger than that of the second opening, the first opening is a light-emitting side, and the second opening is a light-entering side.

Referring to fig. 1 and 4, in some embodiments, the top surface of the side plate 12 located at the first opening is a slope 122, the slope 122 is inclined inward, and in this embodiment, the slope 122 increases in height inward to reduce the area of the highest point of the side plate 12.

The fixing bone 121 is disposed on a side of the side plate 12 near the first opening; the top surface of the fixed bone position 121, which is close to the first opening, is an outer convex conical surface, and the included angle of the outer convex conical surface is more than 90 degrees and less than 180 degrees; or the top surface of the fixed bone 121, which is close to the first opening, is an arc surface, and the radian of the arc surface is smaller than 180 degrees.

According to the embodiment of the utility model, the inclined plane 122 is arranged on one side of the side plate 12 positioned at the first opening, and the top surface of the fixed bone 121 is in the shape of the convex conical surface or the arc surface, so that the contact area between the light emitting side of the reflector 1 and the lamp holder is reduced, the light emitting side of the reflector 1 is changed into the line contact from the surface contact, the reflector 1 is prevented from being driven to rotate or move when the front cover of the lamp holder and the lens are installed, the installation stability of the reflector 1 is improved, the reflector 1 and the lamp holder are relatively static, and the focusing stability of the reflector 1 is improved.

Embodiments of the lamp head of the utility model

Referring to fig. 6 and 7, an embodiment of the utility model provides a lamp cap 2, which includes a housing 21 and a reflector 1 as described above.

The housing 21 is internally provided with a mounting cavity, the bottom of the mounting cavity is provided with at least two positioning holes 211, the reflector 1 is positioned and arranged in the mounting cavity through the corresponding matching of the positioning pieces 111 and the positioning holes 211, in this embodiment, the number of the positioning pieces 111 is three, the positioning pieces are distributed in a regular triangle around the axis of the reflector 1, and the bottom of the mounting cavity is provided with three positioning holes 211 at corresponding positions; the wall of the installation cavity is also provided with a bearing convex ring (not shown in the figure), and when the reflector 1 is installed in the installation cavity, the fixed bone position 121 of the reflector 1 is borne on the bearing convex ring.

In some embodiments, the lamp cap 2 further includes an upper cover 22 and a lens 23, the lens 23 is mounted on the light-emitting side of the housing 21, the upper cover 22 is mounted on the light-emitting side of the housing 21 by screw-fitting, in this embodiment, the lens 23 is located on the light-emitting side of the reflector 1 at the same time, when the upper cover 22 is mounted on the light-emitting side of the housing 21 by screw-fitting, the upper cover 22 pushes the lens 23 to move toward the reflector 1, and the fixed bone 121 is clamped between the lens 23 and the bearing collar of the housing 21, so as to limit the axial movement of the reflector 1

In some embodiments, the lamp base 2 further includes a light emitting element 24, where the light emitting element 24 is installed on the housing 21 and is located in the light entrance hole 112 of the bottom plate 11, and light emitted by the light emitting element 24 passes through the bottom plate 11 and is emitted into the reflective cavity.

The embodiment of the utility model provides that the lamp cap 2 is matched with the positioning hole 211 through the positioning piece 111 so as to limit the circumferential rotation and radial transverse movement of the reflector 1; through the cooperation of upper cover 22, fixed bone position 121 and bearing convex ring to realize the restriction to the axial sideslip of reflector 1, thereby make reflector 1 install in casing 21 relative light emitting part 24 completely static, improve the installation stability, the focusing accuracy of reflector 1, make the light quality of lamp holder 2 more.

Examples of flashlights of the utility model

Referring to fig. 7, an embodiment of the utility model provides a flashlight, which comprises a barrel 3 and a lamp cap 2 as described above, wherein the barrel 3 is at least partially sleeved in the lamp cap 2,

according to the flashlight provided by the embodiment of the utility model, the lamp cap 2 and the reflector 1 are adopted, so that the stability of the reflector 1 after being installed is improved, the reflector 1 is ensured not to shake relative to the lamp cap 2, the focusing effect of the reflector 1 is ensured, and the light emitting quality of the flashlight is improved.

It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims (10)

1. The reflector is arranged in the lamp cap and used for reflecting light rays emitted by the light source, and is characterized by comprising a bottom plate and side plates, wherein the side plates are arranged around the bottom plate to form a reflecting cavity;

at least two positioning pieces are arranged on one surface of the bottom plate, which is far away from the side plate, and each positioning piece is distributed in a circumferential array around the center of the bottom plate;

the positioning piece is used for limiting the reflector to rotate around the axis of the reflector or limiting the reflector to transversely move relative to the lamp holder.

2. The reflector of claim 1, wherein the center of the bottom plate is perforated with a light entrance hole;

the bottom plate is far away from one side of the side plate and is provided with three positioning pieces, and the three positioning pieces are distributed in a regular triangle with the center of the light inlet hole as the center.

3. The reflector of claim 1 or 2, wherein the positioning member comprises a first positioning leg and a second positioning leg, the first positioning leg and the second positioning leg forming a set angle therebetween, wherein the set angle is less than 180 °.

4. A reflector according to claim 1 or 2, wherein the cross-sectional area of the positioning member in the direction away from the base plate is gradually reduced, and the longitudinal section of the positioning member is tapered or circular-arc-shaped.

5. The reflector of claim 1, wherein a plurality of fixed bone sites are arranged at intervals on the side of the side plate, which faces away from the reflecting cavity, and the fixed bone sites are used for limiting the axial movement of the reflector relative to the lamp cap.

6. The reflector of claim 5, wherein the side of the fixed bone facing away from the side plate is a convex conical surface, and the included angle of the convex conical surface is greater than 90 ° and less than 180 °; or (b)

The side surface of the fixed bone position, which is far away from the side plate, is an arc surface, and the radian of the arc surface is smaller than 180 degrees.

7. The reflector of claim 5, wherein the reflective cavity comprises a first opening and a second opening, the bottom plate being sealingly connected to the second opening;

the side plate is positioned on the top surface of the first opening and is an inclined surface, and the inclined surface is obliquely arranged inwards.

8. The reflector of claim 7, wherein the fixed bone site is disposed on a side of the side plate adjacent the first opening;

the top surface of the fixed bone position, which is close to the first opening, is an outer convex conical surface, and the included angle of the outer convex conical surface is more than 90 degrees and less than 180 degrees; or (b)

The fixed bone position is close to the top surface of the first opening and is an arc surface, and the radian of the arc surface is smaller than 180 degrees.

9. A lamp cap comprising a housing and a reflector as claimed in any one of claims 1 to 8;

an installation cavity is formed in the shell, and at least two positioning holes are formed in the bottom of the installation cavity;

the reflector is arranged in the mounting cavity, and is positioned and fixed through corresponding matching of the positioning piece and the positioning hole.

10. A flashlight including a lamp head as claimed in claim 9.