CN215908899U - Focusing assembly, focusing light source and lamp - Google Patents

Abstract

The utility model provides a focusing assembly, a focusing light source and a lamp, wherein the focusing assembly comprises: the driving device drives the lens to move through the transmission piece. The technical scheme of the application effectively solves the problem of large focusing error in the related technology.

Description

Focusing assembly, focusing light source and lamp

Technical Field

The utility model relates to the technical field of illumination, in particular to a focusing assembly, a focusing light source and a lamp.

Background

With the development of science and technology, lamps and lanterns are diversified in types. At present, in order to meet the requirements of users for use under different conditions, the irradiation area of the lamp needs to be changed.

In the related art, the distance between the light source and the desktop is adjusted through a structural rotating shaft of the lamp or in a pulley mode, and then the purpose of adjusting the illumination area is achieved. The above adjusting modes all need manual adjustment, and the error is large.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a focusing assembly, a focusing light source and a lamp, so as to solve the problem of large focusing error in the related technology.

To achieve the above object, according to one aspect of the present invention, there is provided a focus adjustment assembly including: the driving device drives the lens to move through the transmission piece.

Further, the focusing assembly further comprises a base, the transmission part comprises a focusing ring, the focusing ring is rotatably sleeved on the base, and the driving device drives the focusing ring to rotate.

Furthermore, a rotation stopping structure for limiting the rotation of the lens is arranged on the base, a lifting groove is formed in the side wall of the focusing ring, the lifting groove is obliquely arranged along the side wall of the focusing ring, the lens is connected with a first connecting piece, and the first connecting piece is arranged in the lifting groove.

Further, the rotation stopping structure comprises a limiting groove arranged on the side wall of the base, the length direction of the limiting groove is parallel to the axis of the base, and the first connecting piece penetrates through the lifting groove and the limiting groove.

Furthermore, an arc-shaped rack is arranged on the focusing ring, and the focusing assembly further comprises a gear arranged on the output end of the driving device, and the gear is meshed with the arc-shaped rack.

Further, the focusing assembly further comprises a second connecting piece and a power panel, the driving device comprises a driving motor, the driving motor is installed on the support, and the second connecting piece sequentially penetrates through the support and the power panel and is connected with the base.

Furthermore, the focusing assembly further comprises a third connecting piece and a first fixing frame, the lens is installed in the first fixing frame, a plurality of connecting holes are formed in the side wall of the first fixing frame, and the first connecting piece and the third connecting piece penetrate through the connecting holes and are connected with the lens.

Further, the lens is provided with a convex edge, a concave part is arranged on the convex edge, and the third connecting piece penetrates through the connecting hole and is abutted to the concave part.

Furthermore, the focusing assembly further comprises a cover body, a straight section is arranged on the cover body, an outward flanging is arranged at the bottom of the base, the outward flanging is provided with a straight edge, the straight edge is in limit fit with the straight section, a plurality of reinforcing ribs are arranged on the outward flanging at intervals, and the focusing ring is in clearance fit with the reinforcing ribs.

Further, the top of base includes interior turn-ups, spliced pole and buckle, and spliced pole and buckle all set up on interior turn-ups, and the cross section of spliced pole is the cross, is provided with the card platform on the lid, buckle and the cooperation of card platform joint.

According to a second aspect of the present invention, there is provided a focus-adjustable light source, comprising the above focusing assembly, the focusing assembly further comprising a lamp body, the lamp body being mounted on the base.

According to a third aspect of the present invention, a lamp is provided, which includes the above focusing assembly, the focusing assembly further includes a lamp holder, a lamp post and a power supply, the power supply is used for supplying power to the lamp holder module, wherein the focusing assembly is disposed in the lamp holder.

By applying the technical scheme of the utility model, the focusing assembly comprises the driving device, the lens and the transmission piece, the driving device drives the transmission piece to move, and the lens is driven to move by the movement of the transmission piece. Through foretell setting, drive arrangement can accurately control the motion of driving medium and then the removal of control lens, makes the control of focusing more accurate like this. Therefore, the technical scheme of the application effectively solves the problem of large focusing error in the related technology.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a luminaire according to the utility model;

FIG. 2 illustrates a perspective view of the focusing assembly and base of the luminaire of FIG. 1;

FIG. 3 is a perspective view of a portion of the lamp of FIG. 1;

FIG. 4 is an exploded view of the focus assembly and base of FIG. 2; and

fig. 5 shows a cross-sectional schematic view of the luminaire of fig. 1.

Wherein the figures include the following reference numerals:

10. a base; 11. a rotation stopping structure; 111. a limiting groove; 12. flanging; 121. straight sides; 122. reinforcing ribs; 13. inward flanging; 14. connecting columns; 15. buckling; 20. a cover body; 21. a straight section; 22. clamping a platform; 23. a cover body; 231. a first heat sink; 2311. an avoidance part; 232. a second fixing frame; 2321. a lug; 30. a lamp body; 41. a drive device; 42. a lens; 421. a convex edge; 4211. a recess; 43. a transmission member; 431. a focusing ring; 4311. a lifting groove; 4312. an arc-shaped rack; 44. a gear; 45. a support; 46. a power panel; 47. a first fixing frame; 471. connecting holes; 51. a first connecting member; 52. a second connecting member; 53. a third connecting member; 54. a fourth connecting member; 55. a fifth connecting member; 60. a second heat sink.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1, 2 and 4, in the present embodiment, the focus adjustment assembly includes: a driving device 41, a lens 42 and a transmission member 43, wherein the driving device 41 drives the lens 42 to move through the transmission member 43.

By applying the technical solution of the present embodiment, the focusing assembly includes a driving device 41, a lens 42 and a transmission member 43, the driving device 41 drives the transmission member 43 to move, and the movement of the transmission member 43 drives the lens 42 to move. With the above arrangement, the driving device 41 can accurately control the movement of the transmission member 43 and thus the movement of the lens 42, which makes the control of the focusing more accurate. Therefore, the technical scheme of the embodiment effectively solves the problem of large focusing error in the related art.

In order to make the adjustment process more stable, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, in this embodiment, the focus adjustment assembly further includes a base 10, the transmission member 43 includes a focus ring 431, the focus ring 431 is rotatably sleeved on the base 10, and the driving device 41 drives the focus ring 431 to rotate. Focusing ring 431 is simple in structure and convenient to set. Through the rotation of focusing ring 431 in order to drive the reciprocating of lens 42, such regulation mode stability is better, can turn into the power of vertical direction with the power of horizontal direction, and such mode can avoid lens 42 to take place to rock effectively.

In an embodiment not shown in the figures, the transmission member further includes a flat rack, the flat rack is vertically disposed, the lens is fixedly disposed on the flat rack, and the driving device drives the flat rack to move up and down to drive the lens to move up and down. Or the transmission part further comprises a screw nut structure, the lens is fixed with the nut, and the driving device drives the screw rod to rotate so as to enable the nut to move up and down along the screw rod, so that the lens can move up and down.

Considering that the lens rotates along with the rotation of the focus ring, as shown in fig. 2, 4 and 5, in this embodiment, the base 10 is provided with a rotation stopping structure 11 for limiting the rotation of the lens 42, a lifting groove 4311 is provided on a side wall of the focus ring 431, the lifting groove 4311 is obliquely arranged along the side wall of the focus ring 431, the lens 42 is connected with a first connecting member 51, and the first connecting member 51 is arranged in the lifting groove 4311. The lifting groove 4311 is matched with the first connector 51 to effectively convert the rotation of the focus ring 431 into the up-and-down movement of the lens 42, and the lifting groove 4311 includes a plurality of lifting grooves, so that the moving stability of the lens 42 can be effectively improved. The first connecting member 51 is a screw.

In consideration of the difficulty of processing, as shown in fig. 2, 4 and 5, in the present embodiment, the rotation stopping structure 11 includes a limiting groove 111 disposed on the side wall of the base 10, the length direction of the limiting groove 111 is parallel to the axis of the base 10, and the first connecting element 51 is disposed in the lifting groove 4311 and the limiting groove 111. The limiting groove 111 is a vertical groove, the lens 42 can be effectively prevented from rotating along with the focusing ring 431, and the limiting groove 111 is simple in structure and convenient to set. The limit grooves 111 and the lifting grooves 4311 are provided in one-to-one correspondence.

In the embodiment not shown in the figures, the rotation stopping structure further comprises a rotation stopping rib, and the rotation stopping rib is arranged in the base and is in limit fit with the lens to prevent the lens from rotating.

In order to simplify the overall structure, as shown in fig. 1, 2, 4 and 5, in the present embodiment, the focus ring 431 is provided with an arc-shaped rack 4312, and the focus assembly further includes a gear 44 provided at the output end of the driving device 41, and the gear 44 is engaged with the arc-shaped rack 4312. The arc-shaped rack 4312 has a simple structure, and can be effectively engaged with the gear 44, thereby converting the rotation of the driving device 41 into the rotation of the focus ring 431. In this embodiment, the arc-shaped rack 4312 is a segment smaller than the diameter of the focus ring 431, and is disposed at the upper end of the focus ring 431, so that the lamp body 30 can be effectively prevented from being blocked by the driving device 41 approaching the lens 42, and the illumination effect can be ensured. Meanwhile, the arrangement of the arc-shaped rack 4312 can ensure that the first connecting piece 51 can be moved from the first end of the lifting groove 4311 to the second end of the lifting groove 4311, thereby effectively avoiding the waste of materials. Of course, the arc-shaped rack 4312 may be provided in a full circle.

As shown in fig. 1, 2, 4 and 5, in this embodiment, the focusing assembly further includes a second connecting member 52, a bracket 45 and a power board 46, the driving device 41 includes a driving motor, the driving motor is mounted on the bracket 45, and the second connecting member 52 sequentially passes through the bracket 45 and the power board 46 and is connected to the base 10. The second connecting member 52 can effectively connect the driving device 41, the bracket 45 and the power panel 46 together, so that the overall structure is more stable and regular, and the lamp can be maintained and repaired subsequently.

As shown in fig. 1, 2, 4 and 5, in this embodiment, the focusing assembly further includes a third connecting member 53 and a first fixing frame 47, the lens 42 is installed in the first fixing frame 47, a plurality of connecting holes 471 are formed in a side wall of the first fixing frame 47, and the first connecting member 51 and the third connecting member 53 both pass through the connecting holes 471 and are connected to the lens 42. The lens 42 can be mounted on the first fixing frame 47, so that the lens 42 can be fixed more stably. The lens 42 is prevented from falling off. Meanwhile, the bottom of the first fixing frame 47 is provided with a limiting edge, the limiting edge is located inside the first fixing frame 47, and the limiting edge can be abutted and matched with the lens 42, so that the stability of the whole structure is improved. And the first fixing frame 47 can play a role of protecting the lens 42, thereby improving the collision-proof capability of the lens 42. The third connecting member 53 is a screw.

As shown in fig. 1, 2, 4, and 5, in the present embodiment, the lens 42 has a convex edge 421, a concave portion 4211 is provided on the convex edge 421, and the third link 53 passes through the connection hole 471 and abuts against the concave portion 4211. Protruding edge 421's setting on the one hand can cooperate with spacing limit butt, and on the other hand can bear bigger power, and then make the third connecting piece 53 can be connected more stable.

To facilitate the overall assembly, as shown in fig. 1 and 3, in this embodiment, the focus adjustment assembly further includes a cover 20, a straight section 21 is disposed on the cover 20, an outward flange 12 is disposed at the bottom of the base 10, the outward flange 12 has a straight edge 121, the straight edge 121 and the straight section 21 are in limit fit, a plurality of ribs 122 are disposed on the outward flange 12 at intervals, and the focus adjustment ring 431 is in clearance fit with the ribs 122. Straight edge 121 and flat section 21 cooperate to facilitate the assembly of the luminaire as a whole. Specifically, after the cover 20 is mounted on the base 10, the straight edge 121 and the flat section 21 correspond in position, that is, the straight edge 121 and the flat section 21 contact, so that the limit fitting is realized.

As shown in fig. 1 to 5, in the present embodiment, the top of the base 10 includes an inward flange 13, a connecting column 14 and a buckle 15, the connecting column 14 and the buckle 15 are both disposed on the inward flange 13, the cross section of the connecting column 14 is cross-shaped, a clamping table 22 is disposed on the cover 20, and the buckle 15 and the clamping table 22 are in clamping fit. The cross section of the connecting column 14 is cross-shaped, so that the structural strength of the connecting column 14 can be improved, and the connecting column 14 is prevented from being damaged. The clamping table 22 is matched with the buckle 15 in a clamping mode to play a role in pre-fixing, the clamping table 22 is connected with the buckle 15 firstly during assembly, and the driving device 41, the support 45, the power panel 46 and the base 10 are connected through the third connecting piece 53, so that the whole stability is achieved. In the embodiment not shown in the figures, the buckle is arranged on the cover body, and the clamping table is arranged on the inward turned edge.

As shown in fig. 1 to 5, according to a second aspect of the present application, a focus adjustable light source is provided, the focus adjustable light source of this embodiment includes the above-mentioned focus adjusting assembly, the focus adjusting assembly further includes a lamp body 30, and the lamp body 30 is mounted on the base 10. The focusing assembly has good focusing effect and small error, so the focusing light source with the focusing device also has the advantages.

The lamp body 30 is a COB lamp body.

As shown in fig. 1 to 5, according to a third aspect of the present application, a lamp is provided, where the lamp of this embodiment includes the above focusing assembly, the focusing assembly further includes a lamp holder, a lamp post and a power supply, the power supply is used for supplying power to the lamp holder module, and the focusing assembly is disposed in the lamp holder. The focusing assembly has good focusing effect and small error, so that the lamp with the focusing device also has the advantages.

In order to ensure the heat dissipation effect, as shown in fig. 1 to 5, in this embodiment, the cover body 20 includes a cover body 23, a first heat dissipation member 231 and a second fixing frame 232 disposed in the cover body 23, the lamp body 30 is located between the first heat dissipation member 231 and the second fixing frame 232, the lamp further includes a fourth connector 54 and a fifth connector 55, the first heat dissipation member 231 and the second fixing frame 232 are connected through the fourth connector 54, a lug 2321 is disposed on an outer circumference of the second fixing frame 232, a mounting hole is disposed on the lug 2321, an avoiding portion 2311 is disposed on a side wall of the first heat dissipation member 231, the avoiding portion 2311 and the mounting hole are correspondingly disposed, and the fifth connector 55 passes through the mounting hole and is connected with the cover body 23. The second fixing frame 232 can fix the lamp body 30 and the first heat sink 231, thereby making the structure stable. The first heat sink 231 is disposed adjacent to the lamp body 30, so that the heat of the lamp body 30 can be effectively absorbed, and the heat of the lamp body 30 is prevented from being excessively high.

In order to further improve the heat dissipation effect, as shown in fig. 1 to 5, in the present embodiment, the lamp further includes a second heat dissipation member 60, the second heat dissipation member 60 is located outside the cover 20, and the second heat dissipation member 60 is connected to the first heat dissipation member 231. The second heat dissipation element 60 can transfer heat from the first heat dissipation element 231, so that the overall heat dissipation effect of the lamp is better. The second heat sink 60 is a cylinder filled with heat conductive silicone grease or liquid metal. The first heat dissipating member 231 and the second heat dissipating member 60 are in a plug-in fit, and the second heat dissipating member 60 is rotatably disposed with respect to the first heat dissipating member 231. Through the above arrangement, on one hand, the heat dissipation effect can be improved, and on the other hand, the heat dissipation effect can be further improved through the rotation of the second heat dissipation member 60, so that the position of the second heat dissipation member 60 can be adjusted, and the second heat dissipation member 60 is prevented from interfering with other structures.

Meanwhile, a sealing ring is provided at a joint of the first heat sink 231 and the second heat sink 60, and a sealing effect can be ensured by the sealing ring.

The lamp of the present embodiment includes a cover 20, a first heat sink 231, a second heat sink 60, a lamp body 30, a second fixing frame 232, and a focusing assembly; the lamp body 30 is connected with the second fixing frame 232 in a buckling manner, the first heat sink 231 is fixed with the second fixing frame 232, the second fixing frame 232 is fixed with the cover body 20, after the driving device 41 is connected with the gear 44, the driving device is fixed with the base 10 through the bracket 45 and the power panel 46 (to ensure that the gear 44 is meshed with the arc-shaped rack 4312 of the focusing ring 431), the first connecting piece 51 sequentially passes through the lifting groove 4311 of the focusing ring 431 and the limiting groove 111 of the base 10 to be connected with the lens 42 and the first fixing frame 47, the outer surface of the lens 42 is in clearance fit with the inner surface of the base 10, the base 10 is fixed with the second fixing frame 232 through the buckle 15 and is fixed with the cover body 20 in a glue dispensing manner (mainly considering the aesthetic property, the fixing by screws cannot be adopted), so that the glue dispensing fixing manner of the buckle fit is adopted when the driving device 41 is operated, the focusing ring 431 is driven to rotate, the lens 42 moves up and down under the combined limiting action of the lifting groove 4311 of the focusing ring 431 and the limiting groove 111 of the base 10, so that the distance between the lens 42 and the lamp body 30 is adjusted, and the light spot area is adjusted.

Therefore, when the power board 46 receives a focusing signal of the whole machine electric control, the driving device 41 starts to operate and drives the lens 42 to move up and down, and the hall sensing device is arranged on the power board 46, so that the moving distance of the lens 42 can be calculated by counting the revolution number of the driving device 41, the distance between the lens 42 and the lamp body 30 can be accurately adjusted, and the adjustment of the light spot area is realized.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. A focusing assembly, comprising: drive arrangement (41), lens (42) and driving medium (43), drive arrangement (41) pass through driving medium (43) drive lens (42) remove, the focusing subassembly still includes base (10), driving medium (43) include focusing ring (431), focusing ring (431) rotationally overlap and establish on base (10), drive arrangement (41) drive focusing ring (431) rotate.

2. The focusing assembly of claim 1, wherein a rotation stopping structure (11) for limiting the rotation of the lens (42) is arranged on the base (10), a lifting groove (4311) is arranged on the side wall of the focusing ring (431), the lifting groove (4311) is obliquely arranged along the side wall of the focusing ring (431), the lens (42) is connected with a first connecting piece (51), and the first connecting piece (51) is arranged in the lifting groove (4311).

3. The focusing assembly of claim 2, wherein the rotation stopping structure (11) comprises a limiting groove (111) arranged on the side wall of the base (10), the length direction of the limiting groove (111) is parallel to the axis of the base (10), and the first connecting piece (51) is arranged in the lifting groove (4311) and the limiting groove (111) in a penetrating manner.

4. A focusing assembly according to claim 1, wherein an arcuate rack (4312) is provided on the focusing ring (431), the focusing assembly further comprising a gear (44) provided on the output end of the drive means (41), the gear (44) and the arcuate rack (4312) being in mesh.

5. The focusing assembly of claim 1, further comprising a second connector (52), a bracket (45) and a power board (46), wherein the driving device (41) comprises a driving motor, the driving motor is mounted on the bracket (45), and the second connector (52) passes through the bracket (45) and the power board (46) in sequence and is connected with the base (10).

6. The focusing assembly of claim 2, further comprising a third connecting member (53), the focusing assembly further comprising a first fixing frame (47), the lens (42) being mounted in the first fixing frame (47), a plurality of connecting holes (471) being disposed on a sidewall of the first fixing frame (47), the first connecting member (51) and the third connecting member (53) both passing through the connecting holes (471) and being connected to the lens (42).

7. The focusing assembly of claim 6, wherein the lens (42) has a convex edge (421), a concave portion (4211) is arranged on the convex edge (421), and the third connecting piece (53) passes through the connecting hole (471) and abuts against the concave portion (4211).

8. The focusing assembly of claim 1, further comprising a cover body (20), wherein a straight section (21) is arranged on the cover body (20), an outward flange (12) is arranged at the bottom of the base (10), a straight edge (121) is arranged on the outward flange (12), the straight edge (121) is in limit fit with the straight section (21), a plurality of reinforcing ribs (122) are arranged on the outward flange (12) at intervals, and the focusing ring (431) is in clearance fit with the reinforcing ribs (122).

9. The focusing assembly of claim 8, wherein the top of the base (10) comprises an inner flange (13), a connecting column (14) and a buckle (15), the connecting column (14) and the buckle (15) are both arranged on the inner flange (13), the cross section of the connecting column (14) is cross-shaped, a clamping table (22) is arranged on the cover body (20), and the buckle (15) and the clamping table (22) are in clamping fit.

10. A focusable light source comprising a focusing assembly according to any one of claims 2 to 9, further comprising a lamp body (30), said lamp body (30) being mounted on said base (10).

11. A luminaire comprising the focusing assembly of any of claims 1-9, further comprising a lamp head, a lamp post, and a power supply for powering the lamp head, wherein the focusing assembly is disposed in the lamp head.

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