Lamplight device and sound equipment

Abstract

The utility model discloses a light device which comprises a support, a reflector, a rotating shaft, a projection part, a light source and a driving assembly. The rotating shaft is rotationally arranged on the support, the reflector is arranged on the rotating shaft, the projection part is arranged on one side of the rotating shaft, and the light source is arranged between the rotating shaft and the projection part and faces the reflector. The driving assembly comprises a driving part, a first transmission part and a second transmission part, the first transmission part is arranged on the rotating shaft, the driving part is arranged on the side, away from the light source, of the rotating shaft, and the second transmission part is arranged on the driving part and is in transmission connection with the first transmission part. The light presentation area of the light device in the sound box is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of sound and light, in particular to a light and sound. Background Art

[0002] Existing audio-visual equipment has more and more functions, especially audio-visual products for home use, such as ambient lighting, audio, etc. Especially for audio products, in addition to the necessary sound-speaking function, they usually also have fog lighting effects to enhance the visual experience.

[0003] The existing fog lighting effect is achieved by setting a reflective sheet on the rotating shaft, and setting a motor at the end of the rotating shaft to drive the rotating shaft to rotate. By providing a light source to the reflective sheet, the reflective sheet reflects the light from the light source onto a projection piece set on one side of the rotating shaft, and a fog lighting effect is formed on the projection piece as the reflective sheet rotates.

[0004] As described above, the motor is directly arranged at one end of the rotating shaft, and the motor blocks the reflective area at one end of the reflective sheet, so that the light at this position cannot be reflected onto the projection element, thereby reducing the light display area. Utility Model Content

[0005] In order to overcome at least one of the above-mentioned defects of the prior art, the present invention provides a lighting device and a speaker, which are used to increase the lighting performance area of the lighting device in the speaker.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A lighting device comprises a bracket, a reflector, a rotating shaft, a projection element, a light source and a driving assembly;

[0008] The rotating shaft is rotatably arranged on the bracket, the reflective sheet is arranged on the rotating shaft, the projection element is arranged on one side of the rotating shaft, the light source is arranged between the rotating shaft and the projection element, and the light source is arranged toward the reflective sheet;

[0009] The driving assembly includes a driving member, a first transmission member and a second transmission member. The first transmission member is arranged on the rotating shaft. The driving member is arranged on the side of the rotating shaft away from the light source. The second transmission member is arranged on the driving member and is in transmission connection with the first transmission member.

[0010] Furthermore, the driving member is a motor, the first transmission member is a first helical gear, and the second transmission member is a second helical gear.

[0011] Furthermore, with the horizontal direction as a reference, the light source is located below the rotating shaft, the direction of the light origin of the light source is the light axis L, and the angle between the light axis L and the horizontal direction is in the range of 45°-89°.

[0012] Furthermore, in the radial direction of the rotating shaft 30, the maximum vertical distance from the farthest position of the reflective sheet from the axis of the rotating shaft to the axis of the rotating shaft is the rotation radius R1, the plane defined in the vertical direction and passing through the axis of the rotating shaft is the vertical reference plane, and the plane defined in the horizontal direction and passing through the axis of the rotating shaft is the horizontal reference plane;

[0013] Taking the light origin of the light source as the distance reference, the distance from the distance reference to the vertical reference plane is D1, and 1mm≤D1≤R1, the distance from the distance reference to the horizontal reference plane is D2, and R1<D2≤3*R1.

[0014] Furthermore, the reflective sheet is provided with a mounting hole, the narrow side length of the mounting hole is L1 and the wide side length is L2, and the diameter of the rotating shaft is R2;

[0015] Wherein, L1=1.15*R2-1.3*R2, L2=1.5*R2-2*R2, and the mounting hole is sleeved on the rotating shaft.

[0016] Furthermore, there are multiple reflective sheets, and along the axial direction of the rotating shaft, the minimum distance between two adjacent reflective sheets is 3 mm.

[0017] Furthermore, the bracket includes at least three support columns, and the at least three support columns isolate the rotating shaft and divide it into at least four sections.

[0018] A sound device comprising a housing, a sound-generating component, and a lighting device according to any one of claims 1 to 4;

[0019] A window for mounting the projection component is provided on the side wall of the housing, the sound generating component, the bracket, at least one reflective sheet, the rotating shaft, the projection component, the light source and the driving component are all provided in the housing, and the projection component is provided in the window.

[0020] Furthermore, the number of the windows is three, one of which is located on a side of the light source away from the rotating shaft, another is located at one end of the rotating shaft, and another is located at the other end of the rotating shaft;

[0021] The number of the projection components is three, and the windows and the projection components are arranged in a one-to-one correspondence.

[0022] Furthermore, a sound insulation cavity is provided in the shell, and a mounting position is provided in the sound insulation cavity, wherein:

[0023] The sound insulation cavity is provided with an installation position, and the driving member is provided at the installation position;

[0024] And / or, the sound-emitting component includes a sound-emitting portion and a mounting portion, the mounting portion is arranged in the sound insulation cavity, and the sound-emitting portion is arranged outside the sound insulation cavity.

[0025] To sum up, the lighting device and audio provided by the utility model have the following technical effects: the utility model arranges the driving part on the side of the rotating shaft away from the light source, so that the driving part can avoid all areas where the reflective sheet reflects light to the projection part, and the driving part will not block all areas of the reflected light, thereby maximizing the lighting performance area. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the installation structure of the bracket, rotating shaft, reflector and driving assembly of the lighting device of the utility model;

[0027] Figure 2 This is an overall schematic diagram of the lighting device of the present invention;

[0028] Figure 3 A schematic diagram of a reflective sheet of a lighting device according to the present invention;

[0029] Figure 4 This is the assembly drawing of the speaker of the utility model;

[0030] Figure 5 The figure is an exploded view of the speaker of the present invention.

[0031] The meanings of the reference numerals are as follows:

[0032] 10. Bracket; 101. Support column; 20. Reflector; 30. Rotating shaft; 50. Projection element; 60. Light source; 70. Driving assembly; 71. Driving element; 72. First transmission element; 73. Second transmission element; 80. Vertical reference surface; 90. Horizontal reference surface; 11. Mounting hole; 12. Housing; 121. Base; 122. Top cover; 13. Diffuser translucent cover; 14. Netting; 15. Window. DETAILED DESCRIPTION

[0033] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] See Figure 1 and Figure 2 The utility model discloses a lighting device, including a bracket 10, a reflector 20, a rotating shaft 30, a projection member 50, a light source 60 and a driving assembly 70; the rotating shaft 30 is rotatably set on the bracket 10, the reflector 20 is set on the rotating shaft 30, the projection member 50 is set on one side of the rotating shaft, the light source 60 is set between the rotating shaft 30 and the projection member 50, and the light source 60 is set toward the reflector 20; the driving assembly 70 includes a driving member 71, a first transmission member 72 and a second transmission member 73, the first transmission member 72 is set on the rotating shaft 30, the driving member 71 is set on the side of the rotating shaft 30 away from the light source 60, and the second transmission member 73 is set on the driving member 71 and is transmission-connected to the first transmission member 72.

[0037] Among them, the reflective sheet 20 is a prior art and will not be described again here. The number of the reflective sheet 20 can be one. Of course, if a large-scale fog lighting effect is to be achieved, multiple reflective sheets 20 need to be set in the axial direction of the rotating shaft 30.

[0038] The projection element 50 can be a mesh as a projection carrier of the light reflected by the reflective sheet 20, and the lighting effect is presented on the mesh. In this embodiment, the projection element 50 can be a light-scattering translucent cover or a light-scattering translucent cover plate.

[0039] The light source 60 is provided based on the number of reflectors 20 on the shaft 30. Typically, the light source 60 is a light strip, the length of which is greater than or equal to the maximum distance between the two reflectors 20 furthest apart on the shaft 30. The light strip can be provided with multiple light-emitting points, and when powered, it provides sufficient light for multiple reflectors 20.

[0040] The key component in this embodiment is the drive assembly 70. Preferably, the drive member 71 is a motor, and the first transmission member 72 and the second transmission member 73 are both helical gears (which can be understood as the first transmission member 72 being a first helical gear and the second transmission member 73 being a second helical gear). The first transmission member 72 is coaxially disposed with the rotating shaft 30, while the second transmission member 73 is disposed on the output shaft of the motor and meshes with the first transmission member 72. This embodiment uses helical gears to redirect the motor's transmission path, shifting the motor previously located at the end of the rotating shaft 30 to the side of the rotating shaft 30 facing away from the light source 60. This prevents the motor from being obstructed by the reflective area of the reflective sheet 20, allowing all reflections from the reflective sheet 20 to be reflected on the projection element 50, preserving the maximum possible light projection area.

[0041] It should be added that the fog lighting effect is formed by the continuous rotation of the rotating shaft 30, which drives the rotation of the reflective sheet 20. The rotation of the reflective sheet 20 causes its own reflective area to change continuously, and the light radiated from the reflective sheet 20 to the projection element 50 is continuously dispersed and changed, thereby achieving a fog lighting effect.

[0042] In an alternative embodiment, the first transmission member 72 is a worm gear, which is coaxially arranged with the rotating shaft 30 and preferably located in the middle of the rotating shaft 30. The second transmission member 73 is a turbine gear, which meshes with the worm gear and can be located directly above or below the worm gear. The turbine gear is provided on the motor. The worm gear embodiment will not block the reflective area of the reflective sheeting 20.

[0043] Optional, in Figure 2 In the figure, with the horizontal direction as a reference, the light source 60 is located below the rotating shaft 30, and the direction of the light origin of the light source 60 is the light axis L. The angle range between the light axis L and the horizontal direction is 45°-89°.

[0044] It is understood that the light source 60 emits diffuse illumination. For ease of description of the light source 60 setting angle, this embodiment uses the direction of direct illumination from the light source 60's origin as the light axis L. The angle (α) between the light axis L and the horizontal direction can be adjusted between 45° and 89°. It should be noted that the light source 60 is always positioned toward the reflector 20. Preferably, the angle between the light axis L and the horizontal direction can be set to 45°. In this case, the light axis L passes through the axis of the rotating shaft 30. This 45° angle ensures that the reflector 20 is completely enclosed in the illumination area of the light source 60, thereby maximizing the reflective area of the reflector 20, thereby creating a wider range of fog lighting effects. Of course, other angles can be selected based on the specific effect of the fog lighting effect, including but not limited to 60°, 65°, 70°, 80°, etc.

[0045] Alternatively, the light source 60 may be disposed above the rotating shaft 30 . Similarly, the light source is still directed toward the reflective sheet 20 , and the angle between the light axis L and the horizontal direction is also adjusted between 45° and 89°.

[0046] Optional, in Figure 2 In the radial direction of the rotating shaft 30, the maximum vertical distance from the farthest position of the reflective sheet 20 from the axis of the rotating shaft 30 to the axis of the rotating shaft 30 is the rotation radius R1, which is defined in the vertical direction ( Figure 2 The plane passing through the axis of the rotating shaft 30 is the vertical reference plane 80, which is defined in the horizontal direction ( Figure 2 The plane (in the X direction shown) passing through the axis of the rotating shaft 30 is the horizontal reference plane 90; with the light origin of the light source 60 as the distance reference, the distance from the distance reference to the vertical reference plane 80 is D1, and 1mm≤D1≤R1, and the distance from the distance reference to the horizontal reference plane 90 is D2, and R1<D2≤3*R1.

[0047] In the prior art, most reflective sheeting 20 has an irregular shape. In this embodiment, the perpendicular distance from the axis of the rotating shaft 30 to the reflective sheeting 20, which is farthest from the axis of the rotating shaft 30, is defined as the rotation radius R1. It can be seen that the light source 60 needs to avoid the range covered by the rotation radius R1 to avoid interfering with the rotation of the reflective sheeting 20. In this embodiment, R1 < D2 ≤ 3*R1 (preferably, but not limited to, D2 = 2R1). R1 < D2 indicates that the light source 60 avoids the range covered by the rotation radius R1. Then, D2 ≤ 3*R1 is used to limit the distance between the light source 60 and the reflective sheeting 20. Within this range, the light intensity of the light source 60 is guaranteed, and problems such as insufficient light intensity resulting from excessive distance and poor reflective effect of the reflective sheeting 20 are avoided. In addition, 1mm≤D1≤R1 (it can be seen that R1 is greater than or equal to 1mm), where 1mm≤D1. This setting can avoid the problem of the light source 60 being directly disposed directly below the rotating shaft 30. The light source 60 being directly disposed directly below the rotating shaft 30 limits its illumination range of the reflective sheeting 20. Similarly, D1≤R1 and D2≤3*R1 limit the light source from being too far away from the reflective sheeting 20 to avoid the problem of insufficient light intensity.

[0048] Optional, in Figure 2 and Figure 3 In the embodiment, the reflective sheet 20 is provided with a mounting hole 11, the narrow side length of the mounting hole 11 is L1 and the wide side length is L2, and the diameter of the rotating shaft 30 is R2.

[0049] Wherein, L1 = 1.15*R2-1.3*R2, L2 = 1.5*R2-2*R2, and the mounting hole 11 is sleeved on the rotating shaft 30 .

[0050] As mentioned above, the reflective sheeting 20 is mounted on the rotating shaft 30. In this embodiment, a mounting hole is provided in the middle of the reflective sheeting 20. For example, the mounting hole 11 is a straight slotted hole. The straight slotted hole is configured with reference to the above data, with a narrow side length L1 and a wide side length L2. According to L1 = 1.15*R2 - 1.3*R2, and L2 = 1.5*R2 - 2*R2, it can be seen that there is a clearance fit between the mounting hole 11 and the rotating shaft 30. This clearance fit allows the reflective sheeting 20 to be quickly mounted on the rotating shaft 30, improving the installation efficiency of the reflective sheeting 20. It is understood that the existing reflector 20 can be of regular or irregular shape, mounted on the rotating shaft 30 at any angle, and twisted, thereby creating a variety of fog-like lighting effects. This is also the case in this embodiment, but a further feature is that the interference fit between the mounting hole 11 and the rotating shaft 30 allows the reflector 20 to twist after being mounted on the rotating shaft 30. It is emphasized here that twisting will cause deformation of the mounting hole 11. The aforementioned gap between the mounting hole 11 and the rotating shaft 30 provides twisting space for the deformation of the mounting hole 11, which can also be understood as providing the reflector 20 with greater twisting freedom. Of course, the edge of the deformed mounting hole 11 eventually abuts the rotating shaft 30, thereby securing the reflector 11. It should be noted that twisting the reflector 20 has the following effects: first, the shape of the reflector 20 becomes more random (i.e., less regular) after twisting. It can be seen that the greater the twisting amount, the less regular the reflector 20, and the more changes in the fog lighting effect. Second, when the reflector 20 has the twisting function, the amount of expansion and contraction of the reflector 20 in the vertical or horizontal direction can be controlled by twisting, thereby achieving the effect of controlling the space occupancy rate of the reflector 20. The significance of this effect is that when facing different installation spaces, the reflector 20 can more adaptively adjust its space occupancy rate to adapt to different installation spaces. In the above, if the reflector 20 has a regular shape, it is preferred that the narrow side length L1 is set along the width direction of the reflector 20, and the wide side length L2 is set along the length direction of the reflector 20.

[0051] In the following limits L1 = 1.15*R2 - 1.3*R2, L2 = 1.5*R2 - 2*R2, preferably, L1 = 1.2*R2, L2 = 1.75*R2. In conjunction with the above description of the torsion of the reflector 20, it is emphasized here that the main function of the reflector 20 is still to reflect light, so it is necessary to ensure that the reflector 20 has a sufficient reflective area. Therefore, limiting L1 and L2 within the above vertical range can prevent excessive torsion of the reflector 20. That is, the torsion can be stopped after the edge of the mounting hole 11 abuts the shaft 30 and the reflector 20 is fixed to the shaft 30. In this way, the quantification of the torsion of the reflector 20 is controlled by L1 and L2, while ensuring that the light-emitting sheet 20 has a sufficient reflective area, and can also provide a variable fog light effect brought about by the torsion.

[0052] Optionally, there are multiple reflective sheets 20 , and along the axial direction of the rotating shaft 30 , the minimum distance between two adjacent reflective sheets 20 is 3 mm.

[0053] The distance between the reflective sheets 20 should not be too small. A too small distance can easily cause the reflections of two adjacent reflective sheets 20 to overlap, and the integrated portion can easily have inconsistent light colors with other non-overlapping parts, affecting the display effect of the fog lighting. In this embodiment, the minimum distance between two adjacent reflective sheets 20 is 3 mm, and the maximum distance is preferably 5 mm.

[0054] Optionally, the bracket 10 includes at least three support columns 101 , and the at least three support columns 101 separate the rotating shaft 30 into at least four sections.

[0055] The shape of the support column 101 is not limited. In this embodiment, a notch is provided at the top of the support column 101, and the rotating shaft 30 is directly mounted in the notch and can rotate freely. In addition, to prevent the rotating shaft 30 from moving in the axial direction, a limit ring can be installed on the rotating shaft 30. In addition, after the rotating shaft 30 is installed in the notch, a step seal can be placed on the notch to prevent the rotating shaft 30 from falling over the notch. The purpose of providing multiple support columns 101 in this embodiment is to ensure the stable support of the rotating shaft 30, improve the stability of the rotating shaft 30's rotation, and ensure the shadow effect of the fog light effect.

[0056] refer to Figure 4 and Figure 5 The present application also includes a speaker, including a shell 12, a sound-emitting component and the aforementioned lighting device; a window 15 for installing a projection component 50 is provided on the side wall of the shell 12, the sound-emitting component, the bracket 10, the reflective sheet 20, the rotating shaft 30, the projection component 50, the light source 60 and the driving component 70 are all arranged in the shell 12, and the projection component 50 is arranged in the window 15.

[0057] Now, let's apply the lighting device described above to an audio system. It's clear that the sound-producing component is an amplifier speaker. The sound-producing component (not shown), light source 60, and driver 71 all require power, which will not be discussed here. The housing 12 is a rectangular parallelepiped structure, primarily comprising a base 121 and a top cover 122 covering the base. The top cover 122 and base 121 form a cavity for accommodating the lighting device.

[0058] The key point is that the window 15 is opened on a large side wall of the top cover 122, the above-mentioned lighting device is installed in the cavity, and the projection part 50 is set in the window 15. The user can see the fog light effect on the projection part 50 through the window 15. In addition, the bracket 10 can be set integrally with the base 121.

[0059] Other lighting devices can be used in other scenarios including atmosphere lights or other electrical appliances, which will not be expanded here one by one.

[0060] Optionally, there are three windows 15, one window 15 is located on the side of the light source 60 away from the rotating shaft 30, another window 15 is located at the other end of the rotating shaft 30, and another window 15 is located at one end of the rotating shaft 30; there are three projection parts 50, and the windows 15 and the projection parts 50 are arranged in a one-to-one correspondence.

[0061] Among them, the two ends of the rotating shaft 30 of the lighting device of the present application are not blocked by the driving part 71, so this embodiment can open a small window 15 on each of the two small side walls at both ends of the large side wall of the top cover 122 where the window 15 is opened. In this way, three windows 15 are set on a top cover 122, and the three windows 15 can correspond to three projection parts 50.

[0062] In this embodiment, the projection element 50 uses a light-scattering translucent cover 13 . The light-scattering translucent cover 13 is directly covered outside the top cover 122 and is mounted on the base 121 .

[0063] In addition, at least one external through hole is respectively provided on the diffuse light translucent cover 13 and the top cover 122. An external through hole on the diffuse light translucent cover 13 and an external through hole on the top cover 122 are aligned. The two external through holes form an external connection channel that connects the cavity with the outside. A woven mesh 14 can be set in the external connection channel for blocking, and the woven mesh can be used as an outlet for the sound of the sound-emitting component.

[0064] In addition, in order to facilitate the alignment of an outer through hole on the above-mentioned astigmatism translucent cover 13 and an outer through hole on the top cover 122, a positioning protrusion is set on the edge of the outer through hole on the top cover 122, and a positioning groove adapted to the positioning protrusion is set on the edge of the outer through hole of the astigmatism translucent cover. When the astigmatism translucent cover 13 is covered with the top cover 122, the positioning protrusion is adapted and aligned with the positioning groove for the subsequent installation of the woven mesh 14.

[0065] Optionally, a sound insulation cavity is provided in the housing 12, and a mounting position is provided in the sound insulation cavity, wherein:

[0066] The driving member 71 is arranged at the mounting position; and / or, a sound insulation cavity is arranged in the shell 12, the sound-generating component includes a sound-generating part and a mounting part, the mounting part is arranged in the sound insulation cavity, and the sound-generating part is arranged outside the sound insulation cavity.

[0067] In the above description, a soundproofing board is provided in the top cover 122 to separate part of the space of the top cover to form a soundproofing cavity (not shown in the figure). When the top cover 122 is installed on the base 121, the base 121 closes the bottom of the soundproofing cavity. It should be noted that a mounting hole is provided on the soundproofing board, the power amplifier speaker body is the mounting part, and the horn mouth is the sound-emitting part. The power amplifier speaker body is arranged in the soundproofing cavity, and the horn mouth is arranged outside the soundproofing cavity through the mounting hole. It should be noted that the external connection channel is not connected to the soundproofing cavity. A long strip opening is provided on the soundproofing board. When the top cover 122 is provided on the base 121, the long strip opening is clamped on the output shaft of the motor to avoid the output shaft and prevent installation interference. As described above, the power amplifier speaker body and the motor (driving member 71) are arranged in the isolation cavity, shielding other unnecessary noises during the working process of the two.

[0068] It should be noted that a mounting seat is provided on the base 121, and a mounting groove is provided on the mounting seat. The driving member 71 is installed in the mounting groove. The mounting groove forms a mounting position in the sound insulation cavity, or a mounting groove is provided on the side wall of the isolation cavity. What is important is that the driving member 71 can be fixed in the mounting groove by glue.

[0069] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A lighting device, characterized in that: It comprises a bracket (10), a reflective sheet (20), a rotating shaft (30), a projection element (50), a light source (60) and a driving assembly (70); The rotating shaft (30) is rotatably arranged on the bracket (10), the reflective sheet (20) is arranged on the rotating shaft (30), the projection element (50) is arranged on one side of the rotating shaft (30), the light source (60) is arranged between the rotating shaft (30) and the projection element (50), and the light source (60) is arranged toward the reflective sheet (20); The driving assembly (70) comprises a driving member (71), a first transmission member (72) and a second transmission member (73), wherein the first transmission member (72) is arranged on the rotating shaft (30), the driving member (71) is arranged on a side of the rotating shaft (30) away from the light source (60), and the second transmission member (73) is arranged on the driving member (71) and is in transmission connection with the first transmission member (72).

2. The lighting device according to claim 1, characterized in that The driving member (71) is a motor, the first transmission member (72) is a first helical gear, and the second transmission member (73) is a second helical gear.

3. The lighting device according to claim 1, characterized in that With the horizontal direction as a reference, the light source (60) is located below the rotating shaft (30), and the direction of the light source (60) is directly irradiated as the light axis L. The angle between the light axis L and the horizontal direction is in the range of 45°-89°.

4. The lighting device according to any one of claims 1 to 3, characterized in that: In the radial direction of the rotating shaft (30), the maximum vertical distance from the farthest position of the reflective sheet (20) from the axis of the rotating shaft (30) to the axis of the rotating shaft (30) is a rotation radius R1, a plane defined in the vertical direction and passing through the axis of the rotating shaft (30) is a vertical reference plane (80), and a plane defined in the horizontal direction and passing through the axis of the rotating shaft (30) is a horizontal reference plane (90); Taking the light origin of the light source (60) as a distance reference, the distance from the distance reference to the vertical reference plane (80) is D1, and 1mm≤D1≤R1, and the distance from the distance reference to the horizontal reference plane (90) is D2, and R1<D2≤3*R1.

5. The lighting device according to claim 4, characterized in that: The reflective sheet (20) is provided with a mounting hole (11), the mounting hole (11) has a narrow side length of L1 and a wide side length of L2, and the diameter of the rotating shaft (30) is R2; Wherein, L1 = 1.15*R2-1.3*R2, L2 = 1.5*R2-2*R2, and the mounting hole (11) is sleeved on the rotating shaft (30).

6. The lighting device according to claim 1, characterized in that There are multiple reflective sheets (20), and along the axial direction of the rotating shaft (30), the minimum distance between two adjacent reflective sheets (20) is 3 mm.

7. The lighting device according to claim 1, characterized in that The bracket (10) comprises at least three support columns (101), and the at least three support columns (101) separate the rotating shaft (30) into at least four sections.

8. A sound system, characterized in that: It comprises a housing (12), a sound-generating component, and a lighting device as claimed in any one of claims 1 to 7; A window (15) for mounting the projection component (50) is provided on a side wall of the housing (12); the sound-generating component, the bracket (10), at least one reflective sheet (20), the rotating shaft (30), the projection component (50), the light source (60) and the driving component (70) are all arranged in the housing (12); and the projection component (50) is arranged in the window (15).

9. The sound system according to claim 8, characterized in that There are three windows (15), one of which is located on the side of the light source (60) away from the rotating shaft (30), another window (15) is located at one end of the rotating shaft (30), and another window (15) is located at the other end of the rotating shaft (30); The number of the projection components (50) is three, and the windows (15) and the projection components (50) are arranged in a one-to-one correspondence.

10. The sound system according to claim 8, characterized in that A sound insulation cavity is provided in the housing (12), wherein: A mounting position is provided in the sound insulation cavity, and the driving member (71) is provided at the mounting position; And / or, the sound-emitting component includes a sound-emitting portion and a mounting portion, the mounting portion is arranged in the sound insulation cavity, and the sound-emitting portion is arranged outside the sound insulation cavity.

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