Scanner mounting structure, projection display unit and projection display device

Abstract

The present invention discloses a scanner mounting structure, comprising a base plate extending horizontally in the front-to-back direction, a scanner adjustment frame provided on the front side of the base plate, a fiber optic scanner mounted on the scanner adjustment frame, a light source module installed on the rear side of the base plate, and the optical fiber of the fiber optic scanner connected to the light source module. Also disclosed are a projection display unit and a projection display device using the scanner mounting structure. The present invention realizes modular integration of the scanner and the light source, and the entire module can be assembled and disassembled by plugging and unplugging the base plate from the card plate, which facilitates the installation and replacement of the scanner. The present invention can adjust the horizontal rotation angle and the pitch rotation angle of the scanner by operating four bolts on the front side. The technical problems of the difficulty in quickly replacing a single fiber optic scanner and the large space occupied by a single fiber optic scanner are solved.

Description

Technical Field

[0001] The present invention relates to the field of projection display technology, and in particular to a scanner installation structure, a projection display unit and a projection display device. Background Art

[0002] The fiber scanner is the imaging element of fiber scanning projection technology. It drives the scanning fiber to move along a predetermined two-dimensional scanning trajectory through an actuator, while modulating the light output power of the light source to project the information of each pixel of the image to be displayed onto the imaging area one by one, thus forming a projected image.

[0003] Because the image size emitted by a single fiber scanner is relatively small, achieving large-scale imaging often requires multiple fiber scanners in an array, where the images emitted by each fiber scanner are spliced ​​together. Therefore, to ensure that the splicing quality of the images emitted by adjacent fiber scanners meets imaging requirements, such as avoiding gaps and overlap, the fiber scanner's output angle must be adjusted.

[0004] However, since the fiber scanner itself is small in size and the distance between adjacent fiber scanners in the arrayed fiber scanner is also very small, how to achieve adjustable output angle of the fiber scanner in a small space has become a technical problem that needs to be solved urgently.

[0005] Furthermore, when a single fiber optic scanner of the arrayed fiber optic scanner fails and needs to be repaired or replaced, since each fiber optic scanner needs to be individually connected to a light source and a control device, how to quickly disassemble and assemble the optoelectronic connection components to achieve rapid replacement of a single fiber optic scanner is also a technical problem that needs to be solved. Summary of the Invention

[0006] Embodiments of the present invention provide a scanner installation structure, a projection display unit, and a projection display device, which are used to solve the technical problems that a single fiber scanner is difficult to replace quickly and that a single fiber scanner occupies a large space.

[0007] In order to achieve the above-mentioned purpose of the invention, the first aspect of an embodiment of the present invention provides a scanner mounting structure, including a base plate extending horizontally in the front-to-back direction, a scanner adjustment frame is provided on the front side of the base plate, the optical fiber scanner is installed on the scanner adjustment frame, a light source module is installed on the rear side of the base plate, and the optical fiber of the optical fiber scanner is connected to the light source module.

[0008] The present invention realizes modular integration of the scanner and the light source, and the entire module can be disassembled and assembled by disassembling and assembling the bottom plate, thereby facilitating the installation and replacement of the scanner.

[0009] Preferably, the scanner installation structure further comprises a clamping plate, the clamping plate is provided with a guide groove for the bottom plate to pass through, and the bottom plate is inserted into the guide groove.

[0010] Preferably, the scanner adjustment frame includes a horizontal rotation adjustment frame and a pitch adjustment frame, the horizontal rotation adjustment frame is rotatably mounted on the front side of the base plate through a first rotating shaft extending in the vertical direction, the pitch adjustment frame is rotatably mounted on the horizontal rotation adjustment frame through a second rotating shaft extending in the left and right horizontal directions, the optical fiber scanner is fixedly mounted on the pitch adjustment frame, the base plate is provided with a first adjustment and fixing component for adjusting and fixing the horizontal rotation adjustment frame, and the horizontal rotation adjustment frame is provided with a second adjustment and fixing component for adjusting and fixing the pitch adjustment frame.

[0011] Preferably, the light source module includes a packaging shell, a light source module, a thermal seat and a refrigerator. The light source module is fixedly mounted on the thermal seat, the cold end of the refrigerator is tightly fitted with the thermal seat, the light source module and the thermal seat are both sealed and mounted in the packaging shell, and a clearance hole is provided on the packaging shell for the hot end of the refrigerator to pass through; the optical fiber of the optical fiber scanner is connected to the light source module of the light source module.

[0012] Preferably, the light source module further comprises a heat sink, comprising a heat sink housing that is tightly fitted to the hot end of the cooler. Further preferably, the heat sink housing is provided with heat sink fins, with heat sink channels formed between adjacent heat sink fins, and the heat sink housing is further provided with a heat sink fan for guiding airflow along the heat sink channels.

[0013] Furthermore, the first adjustment and fixing assembly includes two fastening frames respectively arranged on the left and right sides of the horizontal rotation adjustment frame, each fastening frame has a accommodating groove, and the left and right sides of the horizontal rotation adjustment frame have a guide plate slidably installed in the accommodating groove on the corresponding side, and the accommodating groove limits the freedom of the guide plate in the vertical direction and allows the guide plate to rotate around the first rotation axis; any one of the two fastening frames is provided with a first adjustment bolt for driving the horizontal rotation adjustment frame to rotate around the first rotation axis and a first fastening assembly for fixing the horizontal rotation adjustment frame.

[0014] Furthermore, the fastening frame is provided with a threaded hole for receiving a first adjustment bolt. The first adjustment bolt is installed in the threaded hole, and the end of the first adjustment bolt presses against the horizontal rotation adjustment frame. The angle of rotation of the horizontal rotation adjustment frame about the first rotation axis is adjusted by adjusting the screwing depth of the first adjustment bolt. After the angle is adjusted, the first fastening assembly secures the horizontal rotation adjustment frame in place.

[0015] Furthermore, the first fastening assembly includes a first guide hole provided on the fastening frame and extending in a vertical direction, a first clamping action piece that can move along the first guide hole is provided in the first guide hole, one end of the first clamping action piece contacts the guide plate, and the other end of the first clamping action piece is located inside the first guide hole, and the end face of the first clamping action piece located inside the first guide hole is a first guide surface, and a threaded hole is provided on the fastening frame with an axis perpendicular to the first guide hole, the threaded hole is connected to the first guide hole, and a first tightening bolt is installed in the threaded hole, the end end of the first tightening bolt extends into the first guide hole and presses against the first guide surface, and the end face of the first tightening bolt is a second guide surface that matches the first guide surface, and in the process of the first tightening bolt being screwed into the threaded hole through the thread, the second guide surface squeezes the first guide surface and drives the first clamping action piece to move along the first guide hole toward the guide plate.

[0016] Preferably, the first guide hole is a through hole that passes through the fastening frame, so that after the guide plate is placed and positioned, the first clamping action member can pass through the first guide hole from above, thereby facilitating the installation of the first clamping action member.

[0017] Preferably, the first guide surface is a spherical surface, and the second guide surface is a conical surface.

[0018] Preferably, a first pre-stressing member for pre-stressing the first clamping member is installed in the first guide hole. The first pre-stressing member is used to place the first guide surface of the first clamping member in a position that cooperates with the second guide surface of the first tightening bolt. Further preferably, the first pre-stressing member has a pre-stressing portion located in the first guide hole, the pre-stressing portion is a cylindrical member that does not completely fill the first guide hole, the cylindrical member is located on the side away from the threaded hole, and the bottom of the pre-stressing portion is provided with an opening to avoid interfering with the action of the first tightening bolt.

[0019] Further preferably, the first pre-compression member further includes a connecting portion located outside the first guide hole, and the connecting portion is fixedly connected to the fastening frame.

[0020] Furthermore, the second adjustment and fixing assembly includes a second adjustment bolt and a second fastening assembly provided on the horizontal rotation adjustment frame, the second adjustment bolt is used to drive the pitch adjustment frame to rotate around the second rotation axis, and the second fastening assembly is used to fix the pitch adjustment frame.

[0021] Furthermore, the horizontal rotation adjustment frame is provided with a threaded hole for receiving a second adjustment bolt. The second adjustment bolt is installed in the threaded hole, and the end of the second adjustment bolt presses against the pitch adjustment frame. The pitch adjustment frame is rotated about the second rotation axis by adjusting the screwing depth of the second adjustment bolt. After the angle is adjusted, the second fastening assembly secures the horizontal rotation adjustment frame in place.

[0022] Furthermore, the second fastening assembly includes a second guide hole extending in a horizontal direction on the horizontal rotation adjustment frame, a second clamping action piece that can move along the second guide hole is provided in the second guide hole, one end of the second clamping action piece contacts the left side wall or the right side wall of the pitch adjustment frame, the other end of the second clamping action piece is located inside the second guide hole, and the end face of the second clamping action piece located inside the second guide hole is a third guide surface, a threaded hole is provided on the horizontal rotation adjustment frame, and the threaded hole is connected to the second guide hole, and a second tightening bolt is installed in the threaded hole, the end end of the second tightening bolt extends into the second guide hole and presses against the third guide surface, the end face of the second tightening bolt is a fourth guide surface matching the third guide surface, and in the process of the second tightening bolt being screwed into the threaded hole through the thread, the fourth guide surface squeezes the third guide surface and drives the second clamping action piece to move along the second guide hole toward the pitch adjustment frame.

[0023] Preferably, the second guide hole is a through hole that passes through the horizontal rotation adjustment frame, so that after the pitch adjustment frame is positioned, the second pressing action member can pass through the second guide hole from above, thereby facilitating the installation of the second pressing action member.

[0024] Preferably, the third guide surface is a spherical surface, and the fourth guide surface is a conical surface.

[0025] Preferably, a second pre-compression member for pre-compressing the second compression member is installed in the second guide hole. The second pre-compression member is used to place the second guide surface of the second compression member in a position that cooperates with the second guide surface of the second pressing bolt. Further preferably, the second pre-compression member has a pre-compression portion located in the second guide hole, the pre-compression portion is a cylindrical member that does not completely fill the second guide hole, the cylindrical member is located on the side away from the threaded hole, and the bottom of the pre-compression portion is provided with an opening to avoid interfering with the action of the second pressing bolt.

[0026] Further preferably, the second pre-compression member further includes a connecting portion located outside the second guide hole, and the connecting portion is fixedly connected to the fastening frame.

[0027] In a preferred embodiment, the first adjustment bolt, second adjustment bolt, first jacking bolt, and second jacking bolt all extend horizontally. The nuts of the first adjustment bolt and the first jacking bolt are located on the front side of the fastening frame, while the nuts of the second adjustment bolt and the second jacking bolt are located on the front side of the horizontal rotation adjustment frame. This allows the scanner's horizontal and pitch angles to be adjusted simply by operating these four bolts from the front.

[0028] Preferably, the rear end of the guide groove is provided with a stopper for limiting the rear end of the clamping plate, and the front side of the clamping plate is provided with a clamping member for fixing the base plate to the clamping plate.

[0029] Furthermore, the rear end of the base plate is provided with an electrical plug, which is electrically connected to the fiber scanner and the light source module, respectively. For example, the electrical plug is connected to the fiber scanner and the light source module, respectively, via a printed circuit and / or wires. Optionally, the clipping plate or a support structure fixedly connected to the clipping plate is provided with an electrical connector that mates with the electrical plug, so that when the base plate moves rearward along the guide groove of the clipping plate to the extreme position, the electrical plug can simultaneously automatically connect to the electrical connector.

[0030] Further preferably, a first spring is connected between the horizontal rotation adjustment frame and the fastening frame, and the horizontal rotation adjustment frame is pressed against the end of the first adjustment bolt under the restoring force of the first spring.

[0031] Further preferably, a second spring is connected between the pitch adjustment frame and the horizontal rotation adjustment frame, and the pitch adjustment frame is pressed against the end of the second adjustment bolt under the restoring force of the second spring.

[0032] A second aspect of the present invention provides a projection display unit comprising a housing in which a plurality of scanner mounting structures as described above are fixedly mounted. Images projected by the optical fiber scanners of the scanner mounting structures are spliced ​​together to form a complete image.

[0033] Preferably, the clamping plates of each scanner mounting structure are fixedly mounted in the box body, so that the entire scanner unit including the optical fiber scanner and light source module can be replaced by disassembling and assembling the bottom plate on each clamping plate, reducing the difficulty of disassembly and maintenance.

[0034] Preferably, the housing has a front opening, allowing the bottom plate to be removed and installed through the front opening. The first adjustment bolt, first jacking bolt, second adjustment bolt, and second jacking bolt can also be adjusted through the front opening to adjust the pitch and horizontal yaw angles of each fiber scanner. Further preferably, a cover plate is mounted on the front side of the housing to cover the front opening, and the cover plate is provided with a window for light emission from each fiber scanner.

[0035] Preferably, a bracket is provided at the bottom of the box. Further preferably, the front side of the bottom end of the box is connected to the bracket via a rotating shaft, allowing the box to rotate about the axis of the rotating shaft. A drive device is installed between the bracket and the rear side of the box to drive the bracket to rotate about the rotating shaft. The drive device can be a hydraulic cylinder, a pneumatic cylinder, or a linear motor.

[0036] Preferably, a plurality of horizontal plates are provided in the box body, and a plurality of clamping plates are fixedly mounted on each horizontal plate.

[0037] A third aspect of the present invention provides a projection display device, which includes a plurality of projection display units as described above, wherein the plurality of projection display units are arranged side by side or in an array, and the images projected by the projection display units are spliced ​​together to form a complete image.

[0038] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0039] This invention achieves modular integration of the scanner and light source. The entire module can be assembled and disassembled by simply plugging and unplugging the base plate from the mounting plate, facilitating scanner installation and replacement. The scanner's horizontal and vertical rotation angles can be adjusted by operating four bolts on the front. This solves the technical problems of single fiber scanners, which are difficult to quickly replace and require large space. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic structural diagram of a scanner installation structure of the present invention;

[0041] Figure 2 This is a diagram showing the internal structure of a light source module of a scanner installation structure of the present invention;

[0042] Figure 3 is a structural schematic diagram of a first fastening assembly;

[0043] Figure 4 is a structural schematic diagram of the second fastening assembly;

[0044] Figure 5 is a schematic diagram of the internal matching structure of the second fastening component;

[0045] Figure 6 This is a schematic diagram of the internal structure of the projection display unit box of the present invention;

[0046] Figure 7 for Figure 6 Schematic diagram of a local enlarged structure;

[0047] Figure 8 Schematic diagram of the structure of the projection display unit. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0049] like Figure 1 、 Figure 2 As shown, a first aspect of an embodiment of the present invention provides a scanner mounting structure, comprising a base plate 1 extending horizontally in the front-to-back direction, a scanner adjustment frame being provided on the front side of the base plate 1, a fiber optic scanner 4 being mounted on the scanner adjustment frame 1, a light source module 5 being mounted on the rear side of the base plate, and the optical fiber of the fiber optic scanner 4 being connected to the light source module 5.

[0050] The present invention realizes modular integration of the scanner and the light source, and the entire module can be disassembled and assembled by disassembling and assembling the bottom plate, thereby facilitating the installation and replacement of the scanner.

[0051] Preferably, the scanner installation structure further comprises a clamping plate 6 , on which a guide groove 61 for the bottom plate 1 to penetrate is provided, and the bottom plate 1 is inserted into the guide groove 61 .

[0052] Preferably, the scanner adjustment frame includes a horizontal rotation adjustment frame 2 and a pitch adjustment frame 3, the horizontal rotation adjustment frame 2 is rotatably mounted on the front side of the base plate 1 through a first rotating shaft extending in the vertical direction, the pitch adjustment frame 3 is rotatably mounted on the horizontal rotation adjustment frame 2 through a second rotating shaft extending in the left and right horizontal directions, the optical fiber scanner 4 is fixedly mounted on the pitch adjustment frame 3, and a first adjustment and fixing component for adjusting and fixing the horizontal rotation adjustment frame 2 is provided on the base plate 1, and a second adjustment and fixing component for adjusting and fixing the pitch adjustment frame 3 is provided on the horizontal rotation adjustment frame 2.

[0053] Preferably, the light source module 5 includes a packaging shell 51, a light source module 52, a thermal seat 53 and a refrigerator 54. The light source module 52 is fixedly mounted on the thermal seat 53, and the cold end of the refrigerator 54 fits tightly with the thermal seat 53. The light source module 52 and the thermal seat 53 are both sealed and mounted in the packaging shell 51. The packaging shell 51 is provided with a makeshift hole for the hot end of the refrigerator 54 to pass through; the optical fiber of the optical fiber scanner 4 is connected to the light source module 52 of the light source module 5.

[0054] Preferably, the light source module further includes a heat sink, which includes a heat sink housing 55. The heat sink housing 55 is tightly fitted with the hot end of the refrigerator 54. Further preferably, heat sink fins 56 are provided in the heat sink housing 55, with heat dissipation channels formed between adjacent heat sink fins 56. The heat sink housing 55 is also provided with a heat dissipation fan 57 to guide airflow along the heat dissipation channels.

[0055] Furthermore, the first adjustment and fixing assembly includes two fastening frames 21 respectively arranged on the left and right sides of the horizontal rotation adjustment frame 2, each fastening frame 21 has a accommodating groove, and the left and right sides of the horizontal rotation adjustment frame 2 have a guide plate 22 slidably installed in the accommodating groove on the corresponding side, and the accommodating groove limits the freedom of the guide plate 22 in the vertical direction and allows the guide plate 22 to rotate around the first rotation axis; any one of the two fastening frames 21 is provided with a first adjustment bolt 23 for driving the horizontal rotation adjustment frame 2 to rotate around the first rotation axis and a first fastening assembly for fixing the horizontal rotation adjustment frame 2.

[0056] Furthermore, the fastening frame is provided with a threaded hole for receiving a first adjustment bolt. The first adjustment bolt is installed in the threaded hole, and the end of the first adjustment bolt presses against the horizontal rotation adjustment frame. The angle of rotation of the horizontal rotation adjustment frame about the first rotation axis is adjusted by adjusting the screwing depth of the first adjustment bolt. After the angle is adjusted, the first fastening assembly secures the horizontal rotation adjustment frame in place.

[0057] Further, such as Figure 3 As shown, the first fastening assembly includes a first guide hole extending in a vertical direction on the fastening frame, and a first clamping action piece 26 that can move along the first guide hole is provided in the first guide hole, one end of the first clamping action piece 26 contacts the guide plate, and the other end of the first clamping action piece 26 is located inside the first guide hole, and the end surface of the first clamping action piece 26 located inside the first guide hole is the first guide surface, and a threaded hole with an axis perpendicular to the first guide hole is provided on the fastening frame, and the threaded hole is connected to the first guide hole, and a first tightening bolt 24 is installed in the threaded hole, and the end of the first tightening bolt 24 extends into the first guide hole and presses against the first guide surface, and the end surface of the first tightening bolt 24 is a second guide surface that matches the first guide surface, and in the process of the first tightening bolt 24 being screwed into the threaded hole by threading, the second guide surface squeezes the first guide surface and drives the first clamping action piece 26 to move along the first guide hole toward the guide plate.

[0058] Preferably, the first guide hole is a through hole that passes through the fastening frame, so that after the guide plate is placed and positioned, the first clamping action member 26 can be inserted into the first guide hole from above, thereby facilitating the installation of the first clamping action member 26.

[0059] Preferably, the first guide surface is a spherical surface, and the second guide surface is a conical surface.

[0060] Preferably, a first pre-compression member 27 for pre-compressing the first compression member 26 is installed in the first guide hole. The first pre-compression member 27 is used to position the first guide surface of the first compression member 26 to cooperate with the second guide surface of the first jacking bolt 24. Further preferably, the first pre-compression member 27 has a pre-compression portion located in the first guide hole. The pre-compression portion is a cylindrical member that does not completely fill the first guide hole. The cylindrical member is located on the side away from the threaded hole, and the bottom of the pre-compression portion is provided with an opening to avoid interfering with the action of the first jacking bolt 24.

[0061] Further preferably, the first pre-compression member 27 further includes a connecting portion located outside the first guide hole, and the connecting portion is fixedly connected to the fastening frame.

[0062] Furthermore, the second adjustment and fixing assembly includes a second adjustment bolt 31 and a second fastening assembly provided on the horizontal rotation adjustment frame 2. The second adjustment bolt 31 is used to drive the pitch adjustment frame 3 to rotate around the second rotation axis, and the second fastening assembly is used to fix the pitch adjustment frame 3.

[0063] Furthermore, the horizontal rotation adjustment frame is provided with a threaded hole for receiving a second adjustment bolt 31. The second adjustment bolt 31 is installed in this threaded hole, and the end of the second adjustment bolt 31 presses against the pitch adjustment frame. The pitch adjustment frame's rotation angle about the second rotation axis is adjusted by adjusting the screwing depth of the second adjustment bolt 31. After the angle is adjusted, the second fastening assembly secures the horizontal rotation adjustment frame in place.

[0064] Further, such as Figure 4 、 Figure 5 As shown, the second fastening assembly includes a second guide hole extending in the horizontal direction on the horizontal rotation adjustment frame, and a second clamping action piece 34 that can move along the second guide hole is provided in the second guide hole, and one end of the second clamping action piece 34 contacts the left side wall or the right side wall of the pitch adjustment frame, and the other end of the second clamping action piece 34 is located inside the second guide hole, and the end surface of the second clamping action piece 34 located inside the second guide hole is a third guide surface. The horizontal rotation adjustment frame is provided with a threaded hole with an axis perpendicular to the second guide hole, and the threaded hole is connected to the second guide hole, and a second tightening bolt 32 is installed in the threaded hole, and the end of the second tightening bolt 32 extends into the second guide hole and presses against the third guide surface, and the end surface of the second tightening bolt 32 is a fourth guide surface that matches the third guide surface. In the process of the second tightening bolt 32 being screwed into the threaded hole, the fourth guide surface squeezes the third guide surface and drives the second clamping action piece 34 to move along the second guide hole toward the pitch adjustment frame.

[0065] Preferably, the second guide hole is a through hole that passes through the horizontal rotation adjustment frame, so that after the pitch adjustment frame is positioned, the second pressing action member 34 can be inserted into the second guide hole from above, thereby facilitating the installation of the second pressing action member 34 .

[0066] Preferably, the third guide surface is a spherical surface, and the fourth guide surface is a conical surface.

[0067] Preferably, a second pre-compression member 35 is installed in the second guide hole for pre-compressing the second compression member 34. The second pre-compression member 35 is used to position the second guide surface of the second compression member 34 to cooperate with the second guide surface of the second jacking bolt 32. Further preferably, the second pre-compression member 35 has a pre-compression portion located in the second guide hole. The pre-compression portion is a cylindrical member that does not completely fill the second guide hole. The cylindrical member is located on the side away from the threaded hole, and the bottom of the pre-compression portion is provided with an opening to avoid interfering with the action of the second jacking bolt 32.

[0068] Further preferably, the second pre-compression member 27 further includes a connecting portion located outside the second guide hole, and the connecting portion is fixedly connected to the fastening frame.

[0069] In a preferred embodiment, the first adjustment bolt 23, second adjustment bolt 31, first jacking bolt 24, and second jacking bolt 32 all extend horizontally. The nuts of the first adjustment bolt 23 and first jacking bolt 24 are located on the front side of the fastening frame, while the nuts of the second adjustment bolt 31 and second jacking bolt 32 are located on the front side of the horizontal rotation adjustment frame. This allows the scanner's horizontal and pitch angles to be adjusted simply by operating these four bolts from the front.

[0070] Preferably, a stopper 62 is provided at the rear end of the guide groove 61 to limit the rear end of the clamping plate 6 , and a clamping member 63 is provided at the front side of the clamping plate 6 to fix the base plate 1 to the clamping plate 6 .

[0071] Furthermore, the rear end of the base plate 1 is provided with an electrical plug that is electrically connected to the fiber scanner 4. For example, the electrical plug is connected to the fiber scanner 4 via a printed circuit board and / or wires. This allows the electrical plug to automatically connect when the base plate 1 moves rearward along the guide slot 61 of the clamping plate 6 to its limit position.

[0072] Further preferably, a first spring 25 is connected between the horizontal rotation adjustment frame 2 and the fastening frame 21 , and the horizontal rotation adjustment frame 2 is pressed against the end of the first adjustment bolt 23 under the restoring force of the first spring 25 .

[0073] Further preferably, a second spring 33 is connected between the pitch adjustment frame 3 and the horizontal rotation adjustment frame 2 , and the pitch adjustment frame 3 is pressed against the end of the second adjustment bolt 31 under the restoring force of the second spring 33 .

[0074] like Figure 6-Figure 8 As shown, the second aspect of the present invention provides a projection display unit, comprising a bracket 100 and a box 200 provided on the bracket, wherein a plurality of scanner mounting structures as described above are fixedly mounted in the box.

[0075] Preferably, the clamping plates 6 of the scanner mounting structure are fixedly mounted in the box body, so that the entire scanner unit including the optical fiber scanner and the light source module can be replaced by disassembling and assembling the bottom plate on each clamping plate, reducing the difficulty of disassembly and maintenance.

[0076] Preferably, the housing has a front opening, allowing the bottom plate to be removed and installed through the front opening. The first adjustment bolt, first jacking bolt, second adjustment bolt, and second jacking bolt can also be adjusted through the front opening to adjust the pitch and horizontal yaw angles of each fiber scanner. Furthermore, preferably, a cover plate 201 is mounted on the front side of the housing to cover the front opening, and a window 202 is provided on the cover plate for light emission from each fiber scanner.

[0077] Preferably, the front side of the bottom end of the box is connected to the bracket 100 via a rotating shaft 203, and the box can rotate around the axis of the rotating shaft. A driving device 300 is installed between the bracket and the rear side of the box to drive the bracket to rotate around the rotating shaft. The driving device can be a hydraulic cylinder, a pneumatic cylinder or a linear motor.

[0078] Preferably, a plurality of horizontal plates are provided in the box body, and a plurality of clamping plates are fixedly mounted on each horizontal plate.

[0079] A third aspect of the present invention provides a projection display device, which includes a plurality of projection display units as described above, wherein the plurality of projection display units are arranged side by side or in an array, and the images projected by the projection display units are spliced ​​together to form a complete image.

[0080] It should be noted that the above embodiments illustrate rather than limit the present invention, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbols placed between brackets should not be construed as limiting the claims. The words "comprise" or "include" do not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, and third, etc. does not indicate any order and these words may be interpreted as names.

[0081] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0082] This invention achieves modular integration of the scanner and light source. The entire module can be assembled and disassembled by simply plugging and unplugging the base plate from the mounting plate, facilitating scanner installation and replacement. The scanner's horizontal and vertical rotation angles can be adjusted by operating four bolts on the front. This solves the technical problems of single fiber scanners, which are difficult to quickly replace and require large space.

[0083] All features disclosed in this specification, except mutually exclusive features, can be combined in any way.

[0084] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0085] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A scanner installation structure, characterized in that: The optical fiber scanner comprises a bottom plate extending horizontally in the front-to-back direction, a scanner adjustment frame being provided on the front side of the bottom plate, a light source module being provided on the rear side of the bottom plate, and an optical fiber of the optical fiber scanner being connected to the light source module; It also includes a clamping plate, which is provided with a guide groove for the bottom plate to pass through, and the bottom plate is inserted into the guide groove; The scanner adjustment frame includes a horizontal rotation adjustment frame and a pitch adjustment frame. The horizontal rotation adjustment frame is rotatably mounted on the front side of the base plate via a first rotating shaft extending in a vertical direction, and the pitch adjustment frame is rotatably mounted on the horizontal rotation adjustment frame via a second rotating shaft extending in a left and right horizontal direction. The optical fiber scanner is fixedly mounted on the pitch adjustment frame. A first adjustment and fixing component for adjusting and fixing the horizontal rotation adjustment frame is provided on the base plate, and a second adjustment and fixing component for adjusting and fixing the pitch adjustment frame is provided on the horizontal rotation adjustment frame.

2. A scanner mounting structure according to claim 1, characterized in that: The first adjustment and fixing assembly includes two fastening frames respectively arranged on the left and right sides of the horizontal rotation adjustment frame, each fastening frame has a receiving groove, and the left and right sides of the horizontal rotation adjustment frame have a guide plate slidably installed in the receiving groove on the corresponding side, the receiving groove limits the freedom of the guide plate in the vertical direction and allows the guide plate to rotate around the first rotation axis; any one of the two fastening frames is provided with a first adjustment bolt that drives the horizontal rotation adjustment frame to rotate around the first rotation axis and a first fastening assembly for fixing the horizontal rotation adjustment frame.

3. A scanner mounting structure according to claim 1, characterized in that: The light source module includes a packaging shell, a light source module, a thermal seat and a refrigerator. The light source module is fixedly installed on the thermal seat, the cold end of the refrigerator is tightly fitted with the thermal seat, the light source module and the thermal seat are both sealed and installed in the packaging shell, and a clearance hole is provided on the packaging shell for the hot end of the refrigerator to pass through; the optical fiber of the optical fiber scanner is connected to the light source module of the light source module.

4. A scanner mounting structure according to claim 3, characterized in that: The light source module further comprises a radiator, which comprises a heat dissipation shell, and the heat dissipation shell is tightly fitted to the hot end of the refrigerator.

5. A scanner mounting structure according to claim 4, characterized in that: The heat dissipation shell is provided with heat dissipation fins, and heat dissipation channels are formed between adjacent heat dissipation fins. The heat dissipation shell is also provided with a heat dissipation fan for guiding airflow to flow along the heat dissipation channel.

6. A scanner mounting structure according to claim 2, characterized in that: The first adjusting bolt, the second adjusting bolt, the first tightening bolt and the second tightening bolt all extend in the horizontal direction, and the nuts of the first adjusting bolt and the first tightening bolt are both located on the front side of the fastening frame, and the nuts of the second adjusting bolt and the second tightening bolt are both located on the front side of the horizontal rotation adjustment frame.

7. A projection display unit, characterized in that: It comprises a box body, in which a plurality of scanner mounting structures according to any one of claims 1 to 6 are fixedly mounted.

8. A projection display unit according to claim 7, characterized in that: The clamping plates of each scanner mounting structure are fixedly mounted in the box.

9. A projection display device, characterized in that: It comprises a plurality of projection display units as claimed in claim 7 or 8, wherein the plurality of projection display units are arranged side by side or in an array.

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