Illumination angle adjustment structure and luminaire with adjustable illumination angle

1 . An illumination angle adjustment structure for assembling an optical module on a lamp housing, enabling light emitted from the light source module to enter the optical module, wherein the illumination angle adjustment structure comprises a point contact member;

the point contact member is disposed around a peripheral wall of the optical module and connected to the optical module; the point contact member and the optical module are accommodated in the lamp housing; the point contact member abuts against an inner wall of the lamp housing via point contact; and a side of the point contact member away from the optical module is rollably connected to the inner wall of the lamp housing in any direction, enabling the optical module to rotate relative to the lamp housing to alter an exit direction of the light passing through the optical module;

wherein the point contact member comprises at least three rolling components, the three rolling components being arranged around the peripheral wall of the optical module; each rolling component is connected to the optical module, accommodated in the lamp housing, and abuts against the inner wall of the lamp housing via point contact; and sides of the three rolling components away from the optical module are independently rollably connected to the inner wall of the lamp housing in any direction, enabling the optical module to rotate relative to the lamp housing;

wherein each rolling component comprises a carrier and a spherical roller; the carrier is configured to connect to the optical module; the spherical roller is rollably connected to a side of the carrier away from the optical module; and the side of the spherical roller away from the carrier abuts against the inner wall of the lamp housing via point contact; the carrier of each rolling component is independently rollably connected to the inner wall of the lamp housing in any direction via the spherical roller;

wherein each rolling component comprises a telescoping member; one end of the telescoping member is connected to a side of the carrier proximate to the optical module, and the other end of the telescoping member is connected to a side of the optical module proximate to the carrier; and the telescoping member is configured to generate an elastic force to press the spherical roller against the inner wall of the lamp housing;

wherein each rolling component comprises a guiding member connected to the peripheral wall of the optical module; the side of the spherical roller away from the carrier at least partially protrudes beyond the guiding member;

the carrier is slidably coupled to the guiding member; an end of the telescoping member proximate to the optical module is connected to the optical module via the guiding member; and the guiding member is configured to permit telescopic motion of the telescoping member, enabling the spherical roller to slide relative to the guiding member toward or away from the optical module.

2 . The illumination angle adjustment structure according to claim 1 , wherein at least one annular spherical surface is provided on the inner wall of the lamp housing; the point contact member abuts against the annular spherical surface via point contact, and the side of the point contact member away from the optical module is rollably connected to the annular spherical surface in any direction, enabling the optical module to rotate relative to the lamp housing.

3 . The illumination angle adjustment structure according to claim 1 , wherein a plurality of annular spherical surfaces are provided on the inner wall of the lamp housing, the plurality of annular spherical surfaces being linearly arranged; the point contact member abuts against any one of the annular spherical surfaces via point contact; and the side of the point contact member away from the optical module is rollably connected to any one of the annular spherical surfaces in any direction, enabling the optical module to rotate relative to the lamp housing.

4 . The illumination angle adjustment structure according to claim 1 , wherein a cylindrical inner wall is provided on the inner wall of the lamp housing; the point contact member abuts against the cylindrical inner wall via point contact; and the side of the point contact member away from the optical module is rollably connected to the cylindrical inner wall in any direction, enabling the optical module to rotate relative to the lamp housing.

5 . The illumination angle adjustment structure according to claim 1 , wherein damping protrusions are provided on the inner wall of the lamp housing; and the point contact member abuts against the damping protrusions via point contact.

6 . The illumination angle adjustment structure according to claim 5 , wherein the damping protrusions are grid-shaped protrusions; and/or the damping protrusions are silicone protrusions.

7 . The illumination angle adjustment structure according to claim 1 , wherein the point contact member comprises four rolling components arranged around the peripheral wall of the optical module; each rolling component is connected to the optical module, accommodated in the lamp housing, and abuts against the inner wall of the lamp housing via point contact; and sides of the four rolling components away from the optical module are independently rollably connected to the inner wall of the lamp housing in any direction, enabling the optical module to rotate relative to the lamp housing.

8 . The illumination angle adjustment structure according to claim 1 , wherein a rolling groove is provided on the side of the carrier away from the optical module; and the spherical roller is snapped into the rolling groove and rollably connected to the carrier.

9 . The illumination angle adjustment structure according to claim 1 , wherein the guiding member of each rolling component is provided with a sliding slot extending in a direction parallel to a lengthwise direction of the telescoping member; the telescoping member is accommodated within the sliding slot; the carrier is at least partially snapped into the sliding slot and slidably connected to walls of the sliding slot; and both ends of the telescoping member respectively abut against a base of the sliding slot and the side of the carrier proximate to the optical module.

10 . The illumination angle adjustment structure according to claim 1 , wherein the guiding member of each rolling component comprises a mount base and a telescopic sliding sleeve, the mount base is connected to the peripheral wall of the optical module, the telescopic sliding sleeve is slidably coupled to the mount base and telescopically movable relative thereto; a sliding direction of the mount base is parallel to the lengthwise direction of the telescoping member; the telescopic sliding sleeve at least partially protrudes beyond a side of the mount base away from the optical module; the spherical roller at least partially protrudes beyond the telescopic sliding sleeve;

the end of the telescoping member proximate to the optical module is connected to the optical module via the mount base; both the mount base and the telescopic sliding sleeve are configured to permit telescopic motion of the telescoping member;

when the telescoping member is telescopically disposed within the mount base, the carrier is slidably connected to the mount base; and when the telescoping member is telescopically disposed within both the mount base and the telescopic sliding sleeve, the carrier slides away from the mount base, engages with the telescopic sliding sleeve, and drives the telescopic sliding sleeve to slide away from the optical module.

11 . The illumination angle adjustment structure according to claim 10 , wherein a first stopper protrudes from an outer wall at the side of the mount base away from the optical module; a second stopper protrudes from an inner wall at a side of the telescopic sliding sleeve proximate to the optical module; when the telescoping member is telescopically disposed within both the mount base and the telescopic sliding sleeve, the carrier drives the telescopic sliding sleeve to slide away from the optical module until a side of the first stopper proximate to the optical module abuts against a side of the second stopper away from the optical module; and/or

a third stopper protrudes from an outer wall at the side of the carrier proximate to the optical module; a fourth stopper protrudes from the inner wall at a side of the telescopic sliding sleeve away from the optical module; when the telescoping member is telescopically disposed within both the mount base and the telescopic sliding sleeve, a side of the third stopper away from the optical module abuts against a side of the fourth stopper proximate to the optical module.

12 . The illumination angle adjustment structure according to claim 1 , wherein the elastic force generated by the telescoping member of at least one rolling component differs from that generated by the telescoping members of the remaining rolling components;

a cylindrical inner wall is provided on the inner wall of the lamp housing; the spherical roller abuts against the cylindrical inner wall via point contact; and the side of the spherical roller away from the carrier is rollably connected to the cylindrical inner wall in any direction, enabling the optical module to rotate relative to the lamp housing.

13 . A luminaire with adjustable illumination angle, comprising a lamp housing, a light source module, an optical module, and the illumination angle adjustment structure according to claim 1 ;

wherein the light source module is disposed within the lamp housing;

the point contact member is disposed around a peripheral wall of the optical module and connected to the optical module, and both the point contact member and the optical module are accommodated in the lamp housing, such that light emitted from the light source module enters the optical module;

the point contact member abuts against the inner wall of the lamp housing via point contact, and the side of the point contact member away from the optical module is rollably connected to the inner wall of the lamp housing in any direction, such that the optical module is rotatable relative to the lamp housing to alter the exit direction when the light passes through the optical module.

14 . A luminaire with adjustable illumination angle, comprising a lamp housing, a light source module, an optical module, and an illumination angle adjustment structure for assembling the optical module on the lamp housing;

wherein the light source module is disposed within the lamp housing; the illumination angle adjustment structures are disposed around a peripheral wall of the optical module and connected to the optical module;

the illumination angle adjustment structure comprises a point contact member; the point contact member abuts against an inner wall of the lamp housing via point contact; and sides of the point contact members away from the optical module is rollably connected to the inner wall of the lamp housing in any direction, enabling the optical module to rotate relative to the lamp housing to alter an exit direction of light emitted from the light source module and entering the optical module;

the point contact member comprises at least three rolling components, the three rolling components being arranged around the peripheral wall of the optical module, sides of the three rolling components away from the optical module are independently rollably connected to the inner wall of the lamp housing in any direction;

each rolling component comprises a carrier, a telescoping member, a spherical roller, and a guiding member connected to the peripheral wall of the optical module; the carrier is the slidably coupled to the guiding member and configured to connect to the optical module; the spherical roller is rollably connected to a side of the carrier away from the optical module; the side of the spherical roller away from the carrier at least partially protrudes beyond the guiding member and abuts against the inner wall of the lamp housing via point contact; the guiding member of each rolling component is provided with a sliding slot extending in a direction parallel to a lengthwise direction of the telescoping member; the telescoping member is accommodated within the sliding slot; ends of the telescoping member respectively abut against a base of the sliding slot and a side of the carrier proximate to the optical module, and the telescoping member is configured to generate an elastic force to press the spherical roller against the inner wall of the lamp housing.

15 . The luminaire with adjustable illumination angle according to claim 14 , wherein at least one annular spherical surface is provided on the inner wall of the lamp housing, or a cylindrical inner wall is provided on the inner wall of the lamp housing;

damping protrusions are provided on the inner wall of the lamp housing, auxiliary damping protrusions are sleeved on the spherical roller, the auxiliary damping protrusions cooperates with the damping protrusions to position and fix the spherical roller on the inner wall of the lamp housing;

the damping protrusions and the auxiliary damping protrusions are grid-shaped protrusions; and/or the damping protrusions and auxiliary damping protrusions are silicone protrusions.