CN113294752A

CN113294752A - Spotlight throws illumination lamps and lanterns

Info

Publication number: CN113294752A
Application number: CN202110555563.7A
Authority: CN
Inventors: 李昊东; 陈文涛; 侯洪才; 高涛; 李宇
Original assignee: Shenzhen Hengzhiyuan Technology Co ltd
Current assignee: Shenzhen Hengzhiyuan Technology Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-08-24

Abstract

The application relates to a spotlight projection lighting lamp, which comprises a reflecting cup and a light source component arranged in the reflecting cup, wherein one end of the reflecting cup is provided with a light outlet, the reflecting cup comprises at least two reflecting inner walls, and the reflecting inner walls are circumferentially arranged around the central line of the reflecting cup; the light source component comprises a mounting seat and LED luminous elements arranged on the mounting seat, the LED luminous elements are circumferentially arranged around the central line of the reflecting cup, the included angle between the irradiation path of the central light of the LED luminous elements and the central line of the reflecting cup is 85-95 degrees, the number of the LED luminous elements is the same as that of the reflecting inner walls, and the LED luminous elements are in one-to-one correspondence with the reflecting inner walls; the LED luminous elements and the reflecting inner walls which correspond to each other in position form a group of light condensing assemblies, light rays which are irradiated to the reflecting inner walls in the same group of light condensing assemblies by the LED luminous elements can be reflected to be emitted from the light emitting ports, and the reflecting inner walls reflect the reflecting light rays obtained by the LED luminous elements in the same group of light condensing assemblies and can be parallel to the central line of the reflecting cup or incline along the direction close to the central line of the reflecting cup. The light-gathering effect can be better.

Description

Spotlight throws illumination lamps and lanterns

Technical Field

The application relates to the technical field of spotlight fixtures, in particular to a spotlight projection lighting fixture.

Background

A spotlight is an illumination lamp that can focus and project a light source beam, and is generally used in the fields of vehicle headlights, searchlights, and the like. Referring to fig. 1, in the related art, a spotlight mainly includes a light source and a reflective cup, and a reflective cavity in a shape of a gyroscope is formed by surrounding reflective surfaces inside the reflective cup.

One end of the reflecting cavity is provided with a light outlet, and the light source is arranged at one end of the reflecting cavity far away from the light outlet. The light source is usually an LED lamp bead, and the irradiated light is usually a conical divergent light path; wherein, the light in the middle of the conical divergent light path directly irradiates outwards from the light outlet of the light reflecting cavity; the light rays at the edge of the conical divergent light path can irradiate the reflecting surface at the inner side of the reflecting cup, and the light rays at the edge are reflected to the reflecting surface at the inner side of the reflecting cup to be emitted out of the light outlet of the reflecting cavity at an angle parallel to the rotary axis of the reflecting cavity as much as possible by utilizing the reflecting surface at the inner side of the reflecting cup, so that the light gathering effect is achieved.

With respect to the related art in the above, the inventors consider that: the light irradiation path in the middle of the conical divergent light path is still divergent, so that the light in the middle can be scattered after being emitted from the light outlet of the reflective cavity, and the light-gathering projection effect can be reduced.

Disclosure of Invention

In order to promote the spotlight projection effect, the application provides a spotlight projection lighting lamp.

The application provides a spotlight throws illumination lamps and lanterns adopts following technical scheme:

a spotlight projection lighting lamp comprises a reflecting cup and a light source component arranged in the reflecting cup, wherein one end of the reflecting cup is provided with a light outlet, the reflecting cup comprises at least two reflecting inner walls, and the reflecting inner walls are circumferentially arranged around the central line of the reflecting cup; the light source assembly comprises a mounting seat and LED luminous elements arranged on the mounting seat, the LED luminous elements are circumferentially arranged around the central line of the reflecting cup, the included angle between the irradiation path of the central light of the LED luminous elements and the central line of the reflecting cup is 85-95 degrees, the number of the LED luminous elements is the same as that of the reflecting inner walls, and the LED luminous elements are in one-to-one correspondence with the reflecting inner walls; the LED luminous elements and the reflecting inner walls which are corresponding in position form a group of light condensing assemblies, light rays irradiated to the reflecting inner walls in the same group of light condensing assemblies by the LED luminous elements can be reflected to be emitted from the light emitting port, and the reflecting light rays obtained by reflecting the LED luminous elements in the same group of light condensing assemblies by the reflecting inner walls can be parallel to the central line of the reflecting cup or incline along the direction close to the central line of the reflecting cup.

Through adopting above-mentioned technical scheme, set up the direction of illumination of LED illuminating part central light to be 85 to 95 with anti-light cup central line contained angle, so that the middle part light among the divergent type light that the LED illuminating part sent can shine on anti-light cup's reflection of light inner wall, and utilize anti-light cup with these middle part light reflections of LED illuminating part so that light jets out from the light-emitting opening, and the marginal light that the LED illuminating part diverged type light then directly jetted out the light-emitting opening, reach and carry out the effect that collects to LED illuminating part middle part light. And the luminous intensity of LED illuminating part middle part light can be higher than marginal light usually, compares in the marginal light that assembles the LED illuminating part and lets middle part light scattering, assembles the projection to the middle part light of LED illuminating part in this scheme, can have higher utilization ratio to light energy, reaches better spotlight effect.

Optionally, the reflecting inner wall is obtained by rotating around a rotation axis by taking a curve as a bus, and the rotation axis of the bus in the reflecting inner wall is parallel to the central line of the reflecting cup and passes through the centers of the LED light emitting pieces in the same group of light condensing assemblies; the rotation angle theta of the generatrix in the reflecting inner wall is more than or equal to 360 degrees/n, wherein n represents the number of the reflecting inner walls.

Through adopting above-mentioned technical scheme, make the rotation axis of reflection of light inner wall generating line pass the LED illuminating part, can make the reflection of light inner wall that is in the same group spotlight component can form good cooperation with the LED illuminating part, make the LED illuminating part shine the light homoenergetic that reflects light on the inner wall promptly and wear out the light-emitting opening of reflection cup by the reflection.

Optionally, an irradiation path of the central light of the LED light emitting element is perpendicular to a connection line at two ends of a rotation trajectory of any point on the reflecting inner wall bus.

Through adopting above-mentioned technical scheme for the reflection of light inner wall can be shone by more regional light rays in middle part, thereby the reflection forms better spotlight effect.

Optionally, a fixed base is arranged on one side of the light reflecting cup away from the light outlet, a sliding seat is slidably arranged on the fixed base, and the sliding direction of the sliding seat is parallel to the central line of the light reflecting cup; the mounting seat is connected with the sliding seat so as to realize sliding connection between the mounting seat and the fixed base through the sliding seat; the fixed base is provided with an adjusting component used for adjusting the position of the sliding seat.

By adopting the technical scheme, the position of the sliding seat can be adjusted through the adjusting component, so that the position of the LED luminous piece on the mounting seat can be adjusted, when the position of the LED luminous piece changes, the irradiation angle of the reflected light obtained after the reflection of the reflecting inner wall also changes, and different condensation projection effects can be adjusted; specifically, the adjustment and correction of the spotlight projection effect can be performed by using the adjustment assembly in the whole assembly process of the lighting device; and different projection effects can be obtained by adjusting the projection angle during the use process.

Optionally, the adjusting assembly comprises an adjusting block arranged on the sliding seat, an adjusting rotating rod rotatably connected to the fixed base, and a fine adjustment wheel eccentrically arranged on the adjusting rotating rod, and the fixed base is provided with an adjusting cavity for the adjusting block to extend into; a waist-shaped hole is formed in the adjusting block, the length direction of the waist-shaped hole is perpendicular to the sliding direction of the sliding seat, and the width of the waist-shaped hole is equal to the diameter of the fine adjustment wheel; the fine tuning wheel can extend into the waist-shaped hole and abut against two side walls opposite to the width direction of the waist-shaped hole.

Through adopting above-mentioned technical scheme, rotate and adjust the bull stick and drive the fine setting wheel and rotate, and be eccentric connection between fine setting wheel and the regulation bull stick for the center pin of fine setting wheel rotation in-process fine setting wheel self can change, and utilize the butt effect of fine setting wheel to waist shape hole looks lateral wall relatively, drive the regulating block and remove, reach the purpose of finely tuning LED illuminating part position. The precision of the actual adjustment can be adapted according to the eccentric degree of the fine adjustment wheel and the adjustment rotating rod.

Optionally, the fixing base is further provided with a locking assembly for locking the position of the sliding seat, the locking assembly comprises a locking screw, the fixing base is provided with a locking screw hole penetrating through the adjusting cavity, and the locking screw is in threaded connection with the locking screw hole and used for abutting against the side wall of the adjusting block.

Through adopting above-mentioned technical scheme, can utilize locking Assembly to lock fixedly to the position of adjusting block to this reaches the locking to LED lamp pearl position.

Optionally, the mounting seat is connected with the sliding seat through a bolt, and a positioning structure is arranged between the mounting seat and the sliding seat.

By adopting the technical scheme, the positioning structure is firstly utilized to position the mounting seat and the sliding seat, and then the mounting seat and the sliding seat are connected by using the bolt, so that the structure is simple and practical, and the mounting seat can be disassembled, assembled and replaced.

Optionally, the adjusting part includes that the adjusting screw who rotates to be connected on unable adjustment base and be used for driving adjusting screw pivoted driving piece, the length direction of adjusting screw is on a parallel with the glide direction of the seat that slides, just adjusting screw and seat threaded connection that slides.

Through adopting above-mentioned technical scheme, order about adjusting screw by the driving piece and rotate to this drives the seat that slides and removes, conveniently reaches the purpose of finely tuning the LED illuminating part position.

Optionally, the edges of the adjacent reflective inner walls are in smooth transition, and the outer wall of the reflective cup is in a shape of a rotor.

By adopting the technical scheme, the outer wall of the reflection cup is set to be in a rotor shape, so that the reflection cup is convenient to integrally machine and form.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the light rays in the middle of the LED luminous element are converged and projected, so that a better light-gathering effect is achieved;

2. the adjustment and correction of the spotlight projection effect can be carried out by utilizing the adjusting component in the whole assembling process of the lighting device; different projection effects can be obtained by adjustment in the using process;

3. the precision of the actual adjustment can be adapted according to the eccentric degree of the fine adjustment wheel and the adjustment rotating rod.

Drawings

Fig. 1 is a schematic view of a spotlight fixture as indicated in the background of the application.

Fig. 2 is a schematic cross-sectional view of a reflective cup and a light source module in embodiment 1 of the present application.

Fig. 3 is a schematic front view of the reflective cup and the light source assembly in embodiment 1 of the present application.

Fig. 4 is a schematic view of the sliding seat, the fixed base and the adjusting assembly in embodiment 1 of the present application.

Fig. 5 is a schematic diagram of the luminous intensity distribution and the illuminance distribution of fig. 2.

Fig. 6 is a schematic front view of the reflective cup and the light source assembly in embodiment 2 of the present application.

Fig. 7 is a schematic front view of a reflective cup and a light source module in embodiment 3 of the present application.

Fig. 8 is a schematic view of the sliding seat, the fixed base and the adjusting assembly in embodiment 4 of the present application.

Description of reference numerals: 1. a light reflecting cup; 11. a light reflecting inner wall; 12. a transition curved surface; 2. a light source assembly; 21. a mounting seat; 211. locking the screw hole; 22. an LED light emitting member; 221. a central light beam; 3. a fixed base; 4. a sliding seat; 5. an adjustment assembly; 51. an adjusting block; 511. a waist-shaped hole; 52. adjusting the rotating rod; 53. a fine adjustment wheel; 54. adjusting the screw rod; 6. and locking the screw.

Detailed Description

The present application is described in further detail below with reference to figures 2-8.

Example 1

The embodiment of the application discloses a spotlight throws illumination lamps and lanterns. Referring to fig. 2 and 3, a spotlight projection lighting fixture includes a reflective cup 1 and a light source assembly 2 disposed in the reflective cup 1; the outer wall of the light reflecting cup 1 is enclosed to form a rotary surface, and one end of the light reflecting cup 1 is provided with a light outlet for light to emit out. The reflecting cup 1 comprises at least two reflecting inner walls 11, and the reflecting inner walls 11 are uniformly distributed around the central line of the reflecting cup 1 in the circumferential direction.

Referring to fig. 2 and 4, the light source assembly 2 includes a mounting base 21 and an LED light emitting element 22 mounted on the mounting base 21, and a fixing base 3 for connecting the mounting base 21 is disposed on a side of the light outlet of the reflective cup 1; correspondingly, an opening for the mounting base 21 to extend into the reflecting cup 1 is formed in one side of the reflecting cup 1 close to the fixed base 3, so that the LED light emitting element 22 on the mounting base 21 is located in the reflecting cup 1.

Specifically, the LED lighting element 22 may be an LED lamp bead; the included angle between the irradiation path of the central light of the LED luminous element 22 and the central line of the reflective cup 1 is 85-95 degrees, so that the central light of the LED reflective element can be directly scattered out from the light outlet as little as possible, that is, the central light of the LED luminous element 22 can irradiate the inner wall of the reflective cup 1 as much as possible. In this embodiment, for the convenience of design and manufacture, the irradiation path of the central light of the LED lighting element 22 may be perpendicular to the central line of the reflective cup 1.

The number of the LED luminous elements 22 is the same as that of the reflective inner walls 11 of the reflective cup 1, and the positions of the LED luminous elements 22 correspond to those of the reflective inner walls 11 one by one, so that the corresponding LED luminous elements 22 and the reflective inner walls 11 can form a group of light condensing assemblies. Specifically, the reflecting inner wall 11 is obtained by rotating around a rotating axis by taking a curve as a bus, and the rotating axis of the bus in the reflecting inner wall 11 is parallel to the central line of the reflecting cup 1 and passes through the centers of the LED luminous elements 22 in the same group of light-gathering components; meanwhile, the rotation angle theta of the generatrix in the reflecting inner wall 11 is more than or equal to 360 degrees/n, wherein n represents the number of the reflecting inner walls 11. In the reflector cup 1, the edges of the adjacent reflective inner walls 11 are in smooth transition. Meanwhile, the irradiation path of the central light of the LED lighting element 22 is perpendicular to the two-end connection line of any point rotation track on the bus of the reflective inner wall 11, so that the LED lighting element 22 can irradiate as much middle light as possible onto the reflective inner wall 11 in the same group of light focusing assemblies.

In addition, in one set of light focusing assembly, the light emitted from the LED light emitting element 22 onto the reflective inner wall 11 can be reflected to exit from the light exit, and the reflective inner wall 11 reflects the reflected light formed by the LED light emitting element 22 in the same set of light focusing assembly, which can be parallel to the central line of the reflective cup 1 or inclined along the direction close to the central line of the reflective cup 1. In this way, reach and assemble the effect of throwing to the middle part light of LED illuminating part 22, and because of the luminous intensity of LED illuminating part 22 middle part light can be higher than marginal light usually, compare in the marginal light who assembles LED illuminating part 22 and let middle part light scattering, assemble the middle part light of LED illuminating part 22 and throw and can reach better spotlight and throw the effect.

In this embodiment, the number of the LED lighting elements 22 and the reflective inner wall 11 is two, that is, n = 2; correspondingly, the rotation angle theta of the bus in the reflecting inner wall 11 is more than or equal to 180 degrees. Specifically, θ =180 ° may be set, because the rotation axis of the bus bar in the reflective inner wall 11 has a certain distance from the center line of the light-emitting cup, so that two reflective inner walls 11 with the bus bar rotated by 180 ° do not cover the entire inner wall of the light-emitting cup 1. It is necessary to provide a curved transition surface 12 at the edge of the reflective inner wall 11, so that the two reflective inner walls 11 can make smooth transition.

Referring to fig. 2 and 5, when two LED lighting elements 22 are used, the luminous intensity step diagrams are symmetrical, similar to a U-shaped mirror image front-to-back combined pattern; meanwhile, the symmetry axis of the luminous intensity is the same as the symmetry axis of the two LED lighting members 22. In addition, the illuminance distribution is analyzed along a path parallel to the symmetry axes of the two LED lighting elements 22, and it can be known that the illuminance along the path gradually increases from the edge to the center, and reaches the highest illuminance at the center. The distribution of the illuminance is analyzed by a path parallel to the central connection line of the two LED lighting elements 22, and it can be known that the illuminance under the path gradually increases from the edge to the center, reaches the highest illuminance before reaching the center, and then slightly decreases in the direction close to the center.

Referring to fig. 2 and 4, the LED lighting members 22 are positioned corresponding to the bus bars of the reflective inner wall 11, and when the position of the LED lighting members 22 relative to the reflective inner wall 11 is changed, different spotlight projection effects are generated. In this embodiment, the fixed base 3 is connected with a sliding seat 4 for mounting the mounting seat 21 and an adjusting component 5 capable of adjusting the position of the sliding seat 4 in a sliding manner; wherein, the sliding direction of the sliding seat 4 is parallel to the central line of the reflecting cup 1. In the embodiment, the mounting seat 21 and the sliding seat 4 are detachably connected through bolts; a positioning structure is arranged between the mounting seat 21 and the sliding seat 4, so that the mounting seat 21 can be aligned with the hole position of the sliding seat 4, and the LED luminous element 22 on the mounting seat 21 can also be aligned with the position of the reflective inner wall 11. Specifically, the end face of the mounting seat 21 opposite to the sliding seat 4 can be provided with a positioning column and a positioning hole which are matched with each other, so that the positioning effect of the mounting seat and the sliding seat is achieved.

After the mounting seat 21 is connected with the sliding seat 4, the position of the sliding seat 4 is adjusted by the adjusting component 5, so that the effect of adjusting the position of the LED luminous element 22 on the mounting seat 21 can be achieved, and different condensation projection effects can be realized. The adjusting component 5 can be used for adjusting and correcting the spotlight projection effect in the whole lighting device assembling process; it is also possible to adjust the projection effect to different values by means of the adjustment assembly 5 during use.

Referring to fig. 4, in particular, the adjusting assembly 5 includes an adjusting block 51 connected to the sliding seat 4, an adjusting rotating rod 52 rotatably connected to the fixed base 3, and a fine adjustment wheel 53 eccentrically connected to the adjusting rotating rod 52; correspondingly, the last regulation chamber that supplies regulating block 51 to stretch into of offering of unable adjustment base 3, in this embodiment, regulating block 51 and regulation chamber are the cooperation of sliding to this realizes sliding between seat 4 and the unable adjustment base 3 and is connected. Meanwhile, the adjusting block 51 is provided with a waist-shaped hole 511, the depth direction of the waist-shaped hole 511 is the same as the length direction of the adjusting rotating rod 52, the length direction of the waist-shaped hole 511 is perpendicular to the sliding direction of the sliding seat 4, and the width of the waist-shaped hole 511 is equal to the diameter of the fine adjustment wheel 53.

The fine adjustment wheel 53 is connected to the end of the adjustment rotating rod 52, and the fine adjustment wheel 53 can extend into the waist-shaped hole 511 and abut against two side walls opposite to the width direction of the waist-shaped hole 511. The fine adjustment wheel 53 can be driven to rotate by rotating the adjustment rotating rod 52, the central shaft of the fine adjustment wheel 53 can be changed in the rotating process of the fine adjustment wheel 53, and the fine adjustment wheel 53 is used for abutting against the opposite side wall of the waist-shaped hole 511 to drive the adjusting block 51 to move, so that the purpose of fine adjustment of the position of the LED luminous element 22 can be achieved.

In addition, if the adjusting component 5 is used for adjusting and correcting the spotlight projection effect in the assembling process of the lighting device; the fixed base 3 can also be correspondingly provided with a locking component for locking the position of the sliding seat 4. Specifically, locking Assembly includes locking screw 6, and unable adjustment base 3 sets up the locking screw hole 211 that link up to adjusting the chamber, locking screw 6 and locking screw hole 211 threaded connection, and locking screw 6 is close to the one end of adjusting the chamber and is used for supporting tightly in the lateral wall of regulating block 51 to this reaches the locking fixed action to regulating block 51, realizes the relative fixation between seat 4 and the unable adjustment base 3 that slides.

The implementation principle of the spotlight projection lighting lamp in the embodiment of the application is as follows: the irradiation direction of the central light of the LED lighting element 22 is set to be perpendicular to the central line of the reflective cup 1, so that the central light of the divergent light emitted by the LED lighting element 22 can irradiate on the reflective inner wall 11 of the reflective cup 1. Then, the light reflecting cup 1 is used for reflecting the central light rays of the LED lighting element 22 so as to enable the light rays to be emitted from the light outlet, and the edge light rays of the divergent light rays of the LED lighting element 22 are directly emitted from the light outlet, so that the central light rays of the LED lighting element 22 are collected. The luminous intensity of the light rays in the middle of the LED lighting element 22 is usually higher than that of the edge light rays, and the light rays in the middle are scattered in comparison with the edge light rays which converge the LED lighting element 22, so that the light rays in the middle of the LED lighting element 22 are converged and projected to achieve a better light-gathering projection effect.

Meanwhile, in the process of assembly, correction or use and adjustment, the fine adjustment wheel 53 can be driven to rotate by rotating the adjustment rotating rod 52, and the central shaft of the fine adjustment wheel 53 can be changed in the rotating process of the fine adjustment wheel 53 due to the fact that the fine adjustment wheel 53 is eccentrically connected with the adjustment rotating rod 52. Then, the adjusting block 51 is driven to move by the abutting action of the fine adjustment wheel 53 on the opposite side wall of the waist-shaped hole 511, so that the purpose of fine adjustment of the position of the LED luminous element 22 is achieved, and different projection effects are obtained by the adjustment.

Example 2

The embodiment of the application discloses a spotlight throws illumination lamps and lanterns. Referring to fig. 6, the present embodiment is different from embodiment 1 in that: the number of the LED light emitting elements 22 and the reflective inner wall 11 is three, that is, n = 3; correspondingly, the rotation angle theta of the generatrix in the reflecting inner wall 11 is more than or equal to 120 degrees. The light-emitting angle of the LED lamp beads in the market is usually 120-140 degrees, in the embodiment, the angle theta is larger than 120 degrees, the edges of the two adjacent reflecting inner walls 11 are connected, and then the connected edges of the adjacent reflecting inner walls 11 are subjected to chamfering transition to form the transition curved surface 12. Therefore, the reflecting inner wall 11 can be irradiated by more light rays of the LED luminous elements 22 in the same group of light-gathering components, and a better light-gathering and light-gathering effect is achieved.

Example 3

The embodiment of the application discloses a spotlight throws illumination lamps and lanterns. Referring to fig. 7, the present embodiment is different from embodiment 1 in that: the number of the LED lighting elements 22 and the reflective inner wall 11 is specifically four, that is, n = 4; correspondingly, the rotation angle theta of the bus in the reflecting inner wall 11 is more than or equal to 90 degrees. Similarly, in order to enable the reflective inner walls 11 to be irradiated by more light rays of the LED light emitting members 22 in the same group of light condensing assemblies, in this embodiment, θ > 90 ° is made to meet the edges of two adjacent reflective inner walls 11, and then the meeting edges of the adjacent reflective inner walls 11 are subjected to chamfering transition to form the transition curved surface 12.

Example 4

The embodiment of the application discloses a spotlight throws illumination lamps and lanterns. Referring to fig. 8, the present embodiment is different from embodiment 1 in that: the structure of the adjustment assembly 5 is different. Specifically, the adjusting assembly 5 comprises an adjusting screw 54 rotatably connected to the fixed base 3 and a driving member for driving the adjusting screw 54 to rotate; wherein, the length direction of the adjusting screw 54 is parallel to the sliding direction of the sliding seat 4, and the adjusting screw 54 is in threaded connection with the sliding seat 4. The driving member may be a rotating handle or a motor, the driving member drives the adjusting screw 54 to rotate, and the adjusting screw 54 is connected with the sliding seat 4 through a screw thread to drive the sliding seat 4 to move, so as to achieve the purpose of fine-tuning the position of the LED lighting element 22.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A spotlight projection lighting fixture, characterized by: the LED lamp comprises a reflecting cup (1) and a light source component (2) arranged in the reflecting cup (1), wherein a light outlet is formed in one end of the reflecting cup (1), the reflecting cup (1) comprises at least two reflecting inner walls (11), and the reflecting inner walls (11) are circumferentially arranged around the central line of the reflecting cup (1); the light source assembly (2) comprises a mounting seat (21) and LED luminous elements (22) arranged on the mounting seat (21), the LED luminous elements (22) are circumferentially arranged around the central line of the reflecting cup (1), the included angle between the irradiation path of the central light of the LED luminous elements (22) and the central line of the reflecting cup (1) is 85-95 degrees, the number of the LED luminous elements (22) is the same as that of the reflecting inner walls (11), and the LED luminous elements are in one-to-one correspondence with the reflecting inner walls; the LED luminous element (22) and the reflective inner wall (11) which correspond to each other in position form a group of light condensation assemblies, light rays irradiated to the reflective inner wall (11) in the same group of light condensation assemblies by the LED luminous element (22) can be reflected to be emitted from a light outlet, and reflected light rays obtained by reflecting the LED luminous element (22) in the same group of light condensation assemblies by the reflective inner wall (11) can be parallel to the central line of the reflective cup (1) or inclined along the direction close to the central line of the reflective cup (1).

2. A spotlighting projection lighting fixture as recited in claim 1, wherein: the reflecting inner wall (11) is obtained by rotating around a rotating axis by taking a curve as a bus, and the rotating axis of the bus in the reflecting inner wall (11) is parallel to the central line of the reflecting cup (1) and passes through the centers of the LED luminous pieces (22) in the same group of light-gathering components; the rotation angle theta of the generatrix in the reflecting inner wall (11) is more than or equal to 360 DEG/n, wherein n represents the number of the reflecting inner walls (11).

3. A spotlighting projection lighting fixture as recited in claim 2, wherein: the irradiation path of the central light of the LED luminous element (22) is vertical to the connecting line of the two ends of the rotating track of any point on the bus of the reflective inner wall (11).

4. A spotlighting projection lighting fixture as recited in claim 1, wherein: a fixed base (3) is arranged on one side, away from the light outlet, of the reflective cup (1), a sliding seat (4) is arranged on the fixed base (3) in a sliding manner, and the sliding direction of the sliding seat (4) is parallel to the central line of the reflective cup (1); the mounting seat (21) is connected with the sliding seat (4) so as to realize sliding connection between the mounting seat (21) and the fixed base (3) through the sliding seat (4); the fixed base (3) is provided with an adjusting component (5) for adjusting the position of the sliding seat (4).

5. A spotlighting projection lighting fixture as recited in claim 4, wherein: the adjusting assembly (5) comprises an adjusting block (51) arranged on the sliding seat (4), an adjusting rotating rod (52) rotatably connected to the fixed base (3) and a fine adjusting wheel (53) eccentrically arranged on the adjusting rotating rod (52), and the fixed base (3) is provided with an adjusting cavity for the adjusting block (51) to extend into; a waist-shaped hole (511) is formed in the adjusting block (51), the length direction of the waist-shaped hole (511) is perpendicular to the sliding direction of the sliding seat (4), and the width of the waist-shaped hole (511) is equal to the diameter of the fine adjustment wheel (53); the fine adjustment wheel (53) can extend into the waist-shaped hole (511) and abut against two side walls opposite to the width direction of the waist-shaped hole (511).

6. A spotlighting projection lighting fixture as recited in claim 5, wherein: still be equipped with on unable adjustment base (3) and be used for carrying out the locking Assembly who locks to sliding seat (4) position, locking Assembly includes locking screw (6), unable adjustment base (3) are equipped with and link up to the locking screw hole (211) of adjusting the chamber, locking screw (6) threaded connection just is used for supporting tightly in the lateral wall of regulating block (51) in locking screw hole (211).

7. A spotlighting projection lighting fixture as recited in claim 4, wherein: the mounting seat (21) is connected with the sliding seat (4) through a bolt, and a positioning structure is arranged between the mounting seat (21) and the sliding seat (4).

8. A spotlighting projection lighting fixture as recited in claim 4, wherein: the adjusting component (5) comprises an adjusting screw rod (54) which is rotatably connected to the fixed base (3) and a driving piece which is used for driving the adjusting screw rod (54) to rotate, the length direction of the adjusting screw rod (54) is parallel to the sliding direction of the sliding seat (4), and the adjusting screw rod (54) is in threaded connection with the sliding seat (4).

9. A spotlighting projection lighting fixture as recited in claim 1, wherein: the edges of the adjacent reflective inner walls (11) are in smooth transition, and the outer wall of the reflective cup (1) is enclosed to be in a shape of a rotor.