Laser projection equipment

Abstract

The embodiment of the utility model belongs to the display technology, and provides laser projection equipment. The laser projection equipment comprises a projection main body and a mesh enclosure. The mesh enclosure covers at least part of the outside of the projection main body. The mesh enclosure comprises a grating assembly. The grille assembly comprises a grille frame, a partition piece, a rotating piece, a connecting piece and a connecting shaft. The grating frame is installed on the side wall. The connecting shaft is movably connected to the grille frame. The separator is connected to the grille frame. The first end of the rotating piece is rotationally connected with the partition piece, and the second end of the rotating piece is rotationally connected with the connecting shaft through the connecting piece. Therefore, the rotating part can be flexibly adjusted by the movement of the connecting shaft under the action of external force, so that different heat dissipation requirements are met by adjusting the rotating part and optimizing an air circulation path, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to display technology, and more particularly to a laser projection device. Background Art

[0002] Laser projection equipment uses laser light sources. Laser light sources have extremely high brightness and can provide clear and bright images on a large projection area. Due to the characteristics of high brightness and high energy density, laser light sources will generate a lot of heat during operation. If the heat cannot be effectively dissipated, it will cause the laser projection equipment to overheat, thus affecting its performance and life.

[0003] In the prior art, in order to effectively dissipate heat, a mesh cover is often provided around the periphery of the laser projection device. In this way, the mesh cover can protect the internal components while maintaining a good ventilation effect. At present, the mesh cover usually has a grille structure. The grille structure of the mesh cover is conducive to air circulation, thereby helping to dissipate heat inside the laser projection device.

[0004] However, the existing grille has the problem of poor heat dissipation effect. Utility Model Content

[0005] The embodiment of the present application provides a laser projection device, which improves the heat dissipation efficiency of the laser projection device.

[0006] The embodiment of the present application provides a laser projection device. The laser projection device includes a projection body and a mesh cover. The projection body has a projection end and a non-projection end. The mesh cover is arranged at least partially outside the projection body. The mesh cover includes a grille assembly. A mounting opening is provided on at least one side wall of the mesh cover. The mounting opening is arranged in a staggered manner with the non-projection end.

[0007] The grille assembly comprises a grille frame, a partition, a rotating member, a connecting member and a connecting shaft. The grille frame is installed on the side wall.

[0008] The connecting shaft is movably connected to the grille frame. The partition is connected to the grille frame. The first end of the rotating member is rotatably connected to the partition, and the second end of the rotating member is rotatably connected to the connecting shaft through the connecting member. Under the action of an external force, the connecting shaft moves relative to the grille frame in a first direction to drive the second end of the rotating member to rotate relative to the first end of the rotating member.

[0009] Beneficial effects of the present application: In the present application, the connecting shaft can drive the second end of the rotating part to rotate relative to the first end under the action of external force. In this way, by adjusting the rotating part, the air circulation path can be optimized to adapt to different heat dissipation requirements and improve the heat dissipation efficiency of the laser projection equipment.

[0010] In some embodiments of the present application, the connecting shaft includes a shaft body and a sliding buckle. The shaft body and the connecting member are rotatably connected. The sliding buckle is connected to the shaft body. An escape opening is provided on the grille frame. The sliding buckle penetrates the escape opening.

[0011] Under the action of external force, the sliding buckle moves in the avoidance opening along the first direction to drive the shaft body to move along the first direction.

[0012] In some embodiments of the present application, the sliding buckle is arranged in the middle of the extension direction of the shaft body.

[0013] In some embodiments of the present application, the connecting member includes a connecting portion and a clamping portion. The first end of the connecting portion is connected to the connecting shaft. The second end of the connecting portion is rotatably connected to the clamping portion. The clamping portion has a clamping end. The clamping end is clamped to the rotating member.

[0014] In some embodiments of the present application, the partition has a rotation groove. The notch of the rotation groove faces away from the projection body. At least part of the rotating member is located in the rotation groove. The rotating end of the rotating member is configured to rotate in the rotation groove.

[0015] In some embodiments of the present application, the rotation groove includes a first rotation groove and a second rotation groove that are connected to each other. The first rotation groove is located on a side of the second rotation groove close to the projection body. Along the height direction perpendicular to the projection body, the cross-sectional area of ​​the first rotation groove is smaller than the cross-sectional area of ​​the second rotation groove.

[0016] The rotating member comprises a first rotating part and a second rotating part. At least a part of the first rotating part is located in the first rotating groove. The second rotating part is located in the second rotating groove.

[0017] In some embodiments of the present application, there are multiple partitions. Along the height direction of the projection body, the multiple partitions are sequentially arranged at intervals. Both ends of the partitions are respectively connected to the grille frame.

[0018] And / or, there are multiple rotating members. Along the width direction of the projection body, multiple rotating members are arranged at intervals. The first end of the rotating member is rotatably connected to the partition, and the second end of the rotating member is connected to the shaft body through the connecting member.

[0019] In some embodiments of the present application, the grille frame includes two vertical frames and two horizontal frames. Along the width direction of the projection body, the two vertical frames are arranged opposite to each other. Along the height direction of the projection body, the two horizontal frames are arranged opposite to each other. The vertical frames and the horizontal frames are connected.

[0020] The vertical frame extends along the height direction of the projection body, and the horizontal frame extends along the width direction of the projection body.

[0021] In some embodiments of the present application, the mesh cover includes two first side walls and two second side walls. The two first side walls are arranged at intervals along the height direction of the projection body. The two second side walls are arranged at intervals along the length direction of the projection body. The two ends of the second side wall are respectively connected to the two first side walls.

[0022] The second side wall is provided with an installation opening. The grille assembly is located at the installation opening. A side groove is provided at the end of the second side wall away from the projection end. The notch of the side groove faces the projection end. At least part of the grille assembly is located in the side groove.

[0023] A laser projection device comprises a projection body and a mesh cover. The mesh cover is used to cover at least part of the outside of the projection body. The mesh cover comprises a grille assembly. A mounting opening is provided on at least one side wall of the mesh cover. The mounting opening is used to be staggered with a non-projection end of the projection body.

[0024] The grille assembly comprises a grille frame, a partition, a rotating member, a connecting member and a connecting shaft. The grille frame is used to connect with the side wall.

[0025] The connecting shaft is used for being movably connected with the grille frame. The partition is used for being connected with the grille frame. The first end of the rotating member is used for being rotatably connected with the partition. The second end of the rotating member is used for being rotatably connected with the connecting shaft through the connecting member. Under the action of an external force, the connecting shaft moves relative to the grille frame along a first direction to drive the second end of the rotating member to rotate relative to the first end of the rotating member.

[0026] The embodiment of the present application provides a laser projection device. The laser projection device includes a projection body and a mesh cover. The projection body has a non-projection end. The mesh cover is arranged at least partially outside the projection body to protect the projection body. The mesh cover includes a grille assembly. The grille assembly is the core part of the grille and is responsible for air circulation and heat dissipation. A mounting port is provided on at least one side wall of the grille for mounting and fixing the grille. The mounting port is staggered with the non-projection end. The grille assembly includes a grille frame, a partition, a rotating member, a connecting member and a connecting shaft. The grille frame is mounted on the side wall. The connecting shaft is movably connected to the grille frame. The partition is connected to the grille frame. The first end of the rotating member is rotatably connected to the partition, and the second end of the rotating member is rotatably connected to the connecting shaft through the connecting member. Under the action of an external force, the connecting shaft moves relative to the grille frame in a first direction to drive the second end of the rotating member to rotate relative to the first end of the rotating member. In this way, the movement of the connecting shaft under the action of an external force enables the rotating member to be flexibly adjusted, and then by adjusting the rotating member, the air circulation path is optimized, different heat dissipation requirements are adapted, the heat dissipation efficiency is improved, and the electronic components inside the projection body are protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0028] Figure 1 A schematic diagram of the structure of a laser projection device provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the structure of a mesh cover of a laser projection device provided in an embodiment of the present application;

[0030] Figure 3 A schematic structural diagram of a first viewing angle of a grid assembly of a laser projection device provided in an embodiment of the present application;

[0031] Figure 4 A schematic structural diagram of a second viewing angle of a grid assembly of a laser projection device provided in an embodiment of the present application;

[0032] Figure 5 A schematic diagram of the structure of a grille frame of a laser projection device provided in an embodiment of the present application;

[0033] Figure 6 Schematic diagram of the structure of the grid assembly of the laser projection device provided in the embodiment of the present application Figure 1 ;

[0034] Figure 7 for Figure 6 A magnified image of area A;

[0035] Figure 8 for Figure 7 Enlarged view of area B;

[0036] Fig. 9 Schematic diagram of the structure of the grid assembly of the laser projection device provided in the embodiment of the present application Figure 2 ;

[0037] Fig.10 for Fig. 9 Enlarged view of the middle C area;

[0038] Fig.11 for Fig.10 Enlarged view of area D in the middle;

[0039] Fig.12 A schematic diagram of the structure of a partition and a rotating part of a laser projection device provided in an embodiment of the present application.

[0040] Reference numerals:

[0041] 10: laser light source; 20: optical machine; 30: projection lens;

[0042] 100: grille assembly;

[0043] 110: grille frame; 111: vertical frame; 112: horizontal frame;

[0044] 120: separator; 121: rotation groove; 121a: first rotation groove; 121b: second rotation groove;

[0045] 130: rotating member; 131: first rotating part; 132: second rotating part;

[0046] 140: connecting member; 141: connecting portion; 142: clamping portion;

[0047] 150: connecting shaft; 151: shaft body; 152: sliding buckle;

[0048] 200: first side wall; 300: second side wall. DETAILED DESCRIPTION

[0049] To facilitate understanding, the architecture and imaging principle of the laser projection device are first explained as an example.

[0050] Figure 1 FIG. 1 is a schematic diagram of the structure of a laser projection device. Figure 1 As shown, after the upper shell of the laser projection device is disassembled, the internal structure is divided according to the optical function, and may include a laser light source 10, an optical machine 20, and a projection lens 30.

[0051] The optical machine 20 may include light modulation components, such as phase light modulators (PLM) and amplitude modulation components such as light rods and relay lenses. The phase modulation device plays a role in shaping and homogenizing the laser, and the amplitude light modulation component is the core component of the laser projection device. The amplitude light modulation component (also called light valve) can be divided into transmissive liquid crystal display (LCD), liquid crystal on silicon (LCOS), and digital micro mirror devices (DMD) chips.

[0052] The laser light source 10 is used to provide a light source illumination beam. The laser light source 10 may include a laser of at least one color, such as a blue laser, or a dual-light laser, such as a blue laser and a red laser, or a three-color laser light source, including red (RED, R), green (Green, G), and blue (Blue, B) lasers, for providing a three-color laser illumination beam.

[0053] Take the laser light source 10 as a three-color laser light source as an example. Usually, the laser of the three-color laser light source emits three colors of RGB in sequence, and irradiates the amplitude modulation device in sequence. Take the amplitude light modulation device as DMD as an example, consistent with the emission timing of the three-color laser beam, the DMD receives three video image signals for the RGB three-color laser beam in sequence, and flips the thousands of tiny mirrors on its surface at a positive angle or a negative angle corresponding to the video image signal, and reflects the laser beam irradiated to its surface into the projection lens 30, and then modulates the laser beam irradiated to the DMD accordingly to achieve projection imaging.

[0054] In the laser projection device, the laser light source 10 has extremely high brightness and can provide clear and bright images on a large projection area. Since the laser light source 10 has the characteristics of high brightness and high energy density, the laser light source 10 will generate a lot of heat during operation. If the heat cannot be effectively dissipated, the laser projection device will overheat, thereby affecting its performance and life.

[0055] In the prior art, in order to effectively dissipate heat, the outer peripheral cover of the laser projection device is provided with a mesh cover. In this way, the mesh cover can protect the internal components and maintain a good ventilation effect. At present, the mesh cover usually has a grille structure. The mesh cover with a grille structure is conducive to air circulation, thereby helping to dissipate heat inside the laser projection device.

[0056] However, the current mesh cover design does not fully consider the air flow path, and the direction of the grille structure on the mesh cover cannot be adjusted. These may cause the heat inside the laser projection device to not be effectively discharged, forming local hot spots. These hot spots may damage the key components of the laser projection device and affect its normal operation. Therefore, the existing mesh cover has the problem of poor heat dissipation effect.

[0057] In view of this, an embodiment of the present application provides a laser projection device. The laser projection device includes a projection body and a grille. The projection body has a non-projection end. The grille cover is arranged at least partially outside the projection body to protect the projection body. The grille includes a grille assembly. The grille assembly is the core part of the grille and is responsible for air circulation and heat dissipation. A mounting port is provided on at least one side wall of the grille for mounting and fixing the grille. The mounting port is staggered with the non-projection end. The grille assembly includes a grille frame, a partition, a rotating member, a connecting member and a connecting shaft. The grille frame is mounted on the side wall. The connecting shaft is movably connected to the grille frame. The partition is connected to the grille frame. The first end of the rotating member is rotatably connected to the partition, and the second end of the rotating member is rotatably connected to the connecting shaft through the connecting member. Under the action of an external force, the connecting shaft moves relative to the grille frame in a first direction to drive the second end of the rotating member to rotate relative to the first end of the rotating member. In this way, the movement of the connecting shaft under the action of an external force enables the rotating member to be flexibly adjusted, and then by adjusting the rotating member, the air circulation path is optimized, different heat dissipation requirements are adapted, the heat dissipation efficiency is improved, and the electronic components inside the projection body are protected. The present invention provides a grille assembly comprising a grille frame, a partition, a rotating member, a connecting member and a connecting shaft. When the grille assembly is used, it can be simply assembled. Compared with the traditional grille that needs to be prepared by integral molding through a mold, the grille provided by the present invention realizes modular assembly and improves assembly efficiency. At the same time, the laser projection device provided by the present invention also has the advantage of a detachable structure.

[0058] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0059] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0060] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0061] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0062] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0063] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0065] Figure 2 The structural diagram of the mesh cover provided in the embodiment of the present application is schematically shown. Figure 3 The structure diagram of the grille assembly 100 of the laser projection device provided in an embodiment of the present application is schematically shown at a first viewing angle. Figure 4 The schematic diagram schematically shows the structure of the grid assembly 100 of the laser projection device provided in an embodiment of the present application at a second viewing angle.

[0066] The present application embodiment provides a laser projection device. Figures 2 to 4As shown, the laser projection device includes a projection body and a mesh cover. The projection body has a projection end and a non-projection end. The mesh cover is arranged at least partially outside the projection body to protect the projection body. The mesh cover includes a grille assembly 100. At least one side wall of the mesh cover is provided with an installation opening for installing and fixing the mesh cover. The installation opening is staggered with the non-projection end.

[0067] The grille assembly 100 includes a grille frame 110, a partition 120, a rotating member 130, a connecting member 140 and a connecting shaft 150. The grille frame 110 is installed on the side wall. By setting the grille assembly 100 to the grille frame 110, the partition 120, the rotating member 130, the connecting member 140 and the connecting shaft 150, when the grille is used, the grille frame 110, the partition 120, the rotating member 130, the connecting member 140 and the connecting shaft 150 can be simply assembled. Compared with the traditional grille that needs to be prepared by one-piece molding of a mold, the grille provided in the present application realizes modular assembly and improves assembly efficiency. At the same time, the laser projection device provided in the present application also has the advantages of detachable structure and convenient installation.

[0068] The connecting shaft 150 is movably connected to the grille frame 110. The partition 120 is connected to the grille frame 110. The first end of the rotating member 130 is rotatably connected to the partition 120, and the second end of the rotating member 130 is rotatably connected to the connecting shaft 150 through the connecting member 140. Under the action of an external force, the connecting shaft 150 moves relative to the grille frame 110 along a first direction to drive the second end of the rotating member 130 to rotate relative to the first end of the rotating member 130. In this way, the movement of the connecting shaft 150 under the action of an external force enables the rotating member 130 to be flexibly adjusted, and then by adjusting the rotating member 130, the air circulation path is optimized, adapting to different heat dissipation requirements, improving heat dissipation efficiency, and protecting the electronic components inside the projection body.

[0069] As a feasible implementation manner, the mesh cover includes a shell. Figure 2 As shown, the housing includes two first side walls 200 and two second side walls 300. The two first side walls 200 are arranged at intervals along the height direction of the projection body. The two second side walls 300 are arranged at intervals along the length direction of the projection body. The two ends of the second side wall 300 are connected to the two first side walls 200 respectively.

[0070] The second side wall 300 is provided with an installation opening. The grille assembly 100 is located at the installation opening. A side groove is provided at the end of the second side wall 300 away from the projection end. The notch of the side groove faces the projection end. At least part of the grille assembly 100 is located in the side groove. The design of the side groove makes the installation and removal of the grille assembly 100 more convenient, and improves the efficiency of maintenance and replacement.

[0071] For example, when installing the grille assembly 100 on the second side wall 300, first, at least a portion of the grille assembly 100 is snapped into the side groove. This snap-on connection provides physical support for the grille assembly 100, ensuring that the grille assembly 100 will not move or fall off easily during the installation process. Subsequently, the grille assembly 100 and the second side wall 300 are fastened together by screws, further enhancing the firmness of the connection and ensuring that the grille assembly 100 remains stable during use.

[0072] Exemplarily, fixing ribs are provided on the first side wall 200. The fixing ribs increase the structural strength of the first side wall 200, making the laser projection device more durable and better able to resist external impact and pressure.

[0073] Figure 5 The structural diagram of the grille frame 110 provided in the embodiment of the present application is schematically shown.

[0074] As a feasible implementation method, refer to Figure 5 As shown, the grille frame 110 includes two vertical frames 111 and two horizontal frames 112. Along the width direction of the projection body, the two vertical frames 111 are arranged opposite to each other. Along the height direction of the projection body, the two horizontal frames 112 are arranged opposite to each other. The vertical frames 111 and the horizontal frames 112 are connected.

[0075] The vertical frame 111 extends along the height direction of the projection body. The horizontal frame 112 extends along the width direction of the projection body. The connection between the vertical frame 111 and the horizontal frame 112 forms a stable frame structure, ensuring the overall stability of the grille assembly 100. The frame structure can effectively disperse external forces, reduce local stress concentration, and improve the durability of the grille.

[0076] Figure 6 The structure of the grid assembly 100 of the laser projection device provided in the embodiment of the present application is schematically shown. Figure 1 . Figure 7 for Figure 6 Magnified view of area A. Figure 8 for Figure 7 Magnified view of area B.

[0077] As a feasible implementation method, refer to Figures 6 to 8As shown, the connecting shaft 150 includes a shaft body 151 and a sliding buckle 152. The shaft body 151 is rotatably connected to the connecting member 140. The shaft body 151 is the main part of the connecting shaft 150, and the rotating member 130 can rotate around the shaft body 151 by rotatably connecting the shaft body 151 with the connecting member 140. The sliding buckle 152 is connected to the shaft body 151. An escape opening is provided on the grille frame 110. The sliding buckle 152 passes through the escape opening. The design of the escape opening allows the sliding buckle 152 to move therein. The design of the sliding buckle 152 allows the movement of the shaft body 151 to be precisely controlled, thereby achieving precise adjustment of the opening and closing state of the grille assembly 100.

[0078] Under the action of external force, the sliding buckle 152 moves in the avoidance opening along the first direction to drive the shaft body 151 to move along the first direction.

[0079] Exemplarily, under the action of external force, the sliding buckle 152 moves in the avoidance opening along the first direction. The movement of the sliding buckle 152 drives the shaft body 151 to move along the first direction. Figure 6 The movement of the shaft body 151 further drives the second end of the rotating member 130 to rotate relative to the first end of the rotating member 130, thereby adjusting the opening and closing state of the grille assembly 100 and controlling the air circulation.

[0080] Exemplarily, a groove is provided on the shaft body 151, and when the sliding buckle 152 extends into the groove, the sliding buckle 152 is unlocked. At this time, the sliding buckle 152 moves along the first direction to drive the shaft body 151 to move along the first direction.

[0081] As a feasible implementation, the sliding buckle 152 is arranged in the middle of the extension direction of the shaft body 151. When the sliding buckle 152 is located in the middle of the shaft body 151, the applied external force can be more evenly distributed on the shaft body 151. This reduces the bending and deformation of the shaft body 151 and improves the stability of the connecting shaft 150. The sliding buckle 152 is arranged in the middle to avoid stress concentration at one end of the shaft body 151, reducing the risk of the shaft body 151 breaking or being damaged.

[0082] Fig. 9 The structure of the grid assembly 100 of the laser projection device provided in the embodiment of the present application is schematically shown. Figure 2 . Fig.10 for Fig. 9 Magnified view of area C. Fig.11 for Fig.10 Magnified view of area D in the middle.

[0083] As a feasible implementation method, refer to Figures 9 to 11As shown, the connecting member 140 includes a connecting portion 141 and a clamping portion 142. The first end of the connecting portion 141 is connected to the connecting shaft 150. The second end of the connecting portion 141 is rotatably connected to the clamping portion 142. The clamping portion 142 has a clamping end. The clamping end is clamped with the rotating member 130.

[0084] Exemplarily, when the user applies an external force to the sliding buckle 152, the sliding buckle 152 moves in the first direction. The moving sliding buckle 152 drives the connecting shaft 150 to move in the first direction. In this way, the force of the connecting shaft 150 moving downward is transmitted to the clamping portion 142 through the connecting portion 141. Since the connecting shaft 150 and the connecting portion 141 are fixedly connected, the clamping portion 142 rotates under the force of the connecting shaft 150 and the partition 120, thereby driving the second end of the rotating member 130 to rotate relative to the first end, and the angle of the rotating member 130 is adjusted.

[0085] Exemplarily, the clamping connection between the clamping portion 142 and the rotating member 130 can provide a firm connection between the rotating member 130 and the connecting member 140, reducing the risk of the rotating member 130 loosening and falling off. In addition, the firm clamping connection between the rotating member 130 and the connecting member 140 can effectively reduce the vibration and shaking of the rotating member 130. In particular, during the operation of the laser projection device, the firm connection between the connecting member 140 and the rotating member 130 can ensure the stability and reliability of the grille assembly 100. At the same time, this connection method realizes the rapid disassembly and assembly of the connecting member 140 and the rotating member 130, which is convenient for maintenance and replacement of components.

[0086] Fig.12 The schematic diagram schematically shows the structure of the partition 120 and the rotating member 130 of the laser projection device provided in the embodiment of the present application.

[0087] As a feasible implementation method, refer to Fig.12 As shown, the partition 120 has a rotation groove 121. The notch of the rotation groove 121 is away from the projection body. At least part of the rotating member 130 is located in the rotation groove 121. The rotating end of the rotating member 130 is configured to rotate in the rotation groove 121. The rotation groove 121 provides a limited space, so that the rotating member 130 can rotate stably therein, reducing the risk of shaking and loosening.

[0088] Exemplarily, the separator 120 may be a plastic part. The separator 120 may be prepared by an injection molding process. Plastic materials are generally lighter than metal materials, which helps to reduce the weight of the entire device and facilitates installation and movement. Plastic materials are easy to process and mold, and complex geometric shapes can be manufactured by injection molding and other processes.

[0089] As an achievable implementation, the rotation groove 121 includes a first rotation groove 121a and a second rotation groove 121b that are connected to each other. The first rotation groove 121a is located on a side of the second rotation groove 121b close to the projection body. Along the height direction perpendicular to the projection body, the cross-sectional area of ​​the first rotation groove 121a is smaller than the cross-sectional area of ​​the second rotation groove 121b.

[0090] The rotating member 130 includes a first rotating portion 131 and a second rotating portion 132. At least a portion of the first rotating portion 131 is located in the first rotating groove 121a. The second rotating portion 132 is located in the second rotating groove 121b.

[0091] Exemplarily, the design of the first rotation groove 121a and the second rotation groove 121b provides different activity spaces, so that the rotating member 130 can stably rotate therein. Since the cross-sectional area of ​​the first rotation groove 121a is small, the movement of the rotating member 130 in the first rotation groove 121a will be concentrated in a smaller area, which helps to accurately control the movement of the rotating member 130 and improve the stability of the laser projection device. The larger second rotation groove 121b provides a larger support area, making the rotating member 130 more stable during the activity and reducing the risk of shaking and loosening.

[0092] Exemplarily, the cross section of the first rotating portion 131 may be circular. The cross section of the first rotating groove 121a is circular to match the first rotating portion 131. By arranging the first rotating portion 131 in the first rotating groove 121a, the first rotating portion 131 is clamped in the first rotating groove 121a, and the first rotating portion 131 can rotate in the first rotating groove 121a, thereby driving the second rotating portion 132 to rotate. Since the cross section of the first rotating groove 121a matches the first rotating portion 131, this design ensures the stability and smoothness of the first rotating portion 131 in the rotating groove 121. The design of the circular cross section ensures the stability of the first rotating portion 131 in the first rotating groove 121a, reducing the risk of shaking and loosening.

[0093] As a feasible implementation, there are multiple partitions 120. Along the height direction of the projection body, multiple partitions 120 are arranged in sequence at intervals, providing uniform support to ensure the stability and reliability of the entire grille assembly 100. The two ends of the partition 120 are respectively connected to the grille frame 110. The rotating groove 121 and the rotating member 130 on each partition 120 can move independently to achieve flexible adjustment of the opening and closing state of the grille assembly 100. By arranging multiple partitions 120 at intervals along the height direction of the projection body, and connecting the two ends of the partition 120 to the grille frame 110 respectively, the structural stability of the grille assembly 100 can be improved. This design not only improves the heat dissipation efficiency, but also enhances the stability and durability of the structure.

[0094] In some embodiments, there are multiple rotating members 130. Multiple rotating members 130 are arranged at intervals along the width direction of the projection body. The first end of the rotating member 130 is rotatably connected to the partition 120, and the second end of the rotating member 130 is connected to the shaft body 151 through the connecting member 140. Under the action of external force, the sliding buckle 152 drives the connecting shaft 150 to move along the first direction, and the movement of the connecting shaft 150 is transmitted to the multiple rotating members 130 through the connecting member 140, driving them to rotate in the rotating groove 121, thereby adjusting the opening and closing state of the grille assembly 100.

[0095] By arranging a plurality of partitions 120 at intervals along the height direction of the projection body and arranging a plurality of rotating members 130 at intervals along the width direction of the projection body, and connecting the rotating members 130 with the connecting shaft 150 through the connecting members 140, the rotating members 130 can stably rotate within different ranges of motion, thereby realizing flexible adjustment of the opening and closing state of the grille assembly 100. This design not only improves the heat dissipation efficiency of the grille, but also enhances the structural stability and durability of the grille.

[0096] Exemplarily, the grille frame 110 , the rotating member 130 , and the connecting shaft 150 may be made of aluminum alloy.

[0097] For example, the connector 140 may be a rotating shaft. The material of the rotating shaft may be polyoxymethylene. Polyoxymethylene is a high-strength, low-friction engineering plastic with excellent mechanical properties and wear resistance, and is therefore very suitable as a rotating shaft material.

[0098] The laser projection device provided in the present application includes a projection body and a mesh cover. The mesh cover is used to cover at least part of the outside of the projection body. The mesh cover includes a grille assembly 100. A mounting opening is provided on at least one side wall of the mesh cover. The mounting opening is used to be staggered with the non-projection end of the projection body.

[0099] The grille assembly 100 includes a grille frame 110, a partition 120, a rotating member 130, a connecting member 140 and a connecting shaft 150. The grille frame 110 is used to connect with the side wall.

[0100] The connecting shaft 150 is used for being movably connected to the grille frame 110. The partition 120 is used for being connected to the grille frame 110. The first end of the rotating member 130 is used for being rotatably connected to the partition 120. The second end of the rotating member 130 is used for being rotatably connected to the connecting shaft 150 through the connecting member 140. Under the action of an external force, the connecting shaft 150 moves relative to the grille frame 110 in a first direction to drive the second end of the rotating member 130 to rotate relative to the first end of the rotating member 130.

[0101] Exemplarily, during the assembly process of the grille, the grille frame 110, the partition 120, the rotating member 130, the connecting member 140 and the connecting shaft 150 are first assembled, and the grille assembly 100 is formed after the assembly is completed. Then, the grille assembly 100 is fixed at the installation port of the second side wall 300 through the side groove, and at this time, the grille assembly 100 is in the initial opening and closing state. When the user uses the laser projection device, an external force can be applied through the manual box sliding buckle 152, so that the sliding buckle 152 moves in the avoidance port along the first direction. Then the movement of the sliding buckle 152 drives the connecting shaft 150 to move in the first direction. The movement of the connecting shaft 150 is transmitted to the multiple rotating members 130 through the connecting member 140. The first ends of the multiple rotating members 130 rotate in the first rotating groove 121a driven by the connecting member 140, and then drive the second ends to rotate in the second rotating groove 121b, thereby adjusting the opening and closing state of the grille assembly 100. By adjusting the opening and closing state of the grille assembly 100, the air circulation path is optimized to achieve efficient heat dissipation.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0103] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A laser projection device, characterized in that: include: A projection body having a projection end and a non-projection end; A mesh cover, the mesh cover is arranged on at least a part of the outside of the projection body; The mesh cover comprises a grille assembly, and at least one side wall of the mesh cover is provided with a mounting opening, and the mounting opening is staggered with the non-projection end; The grille assembly comprises a grille frame, a partition, a rotating member, a connecting member and a connecting shaft, and the grille frame is mounted on the side wall; The connecting shaft is movably connected to the grille frame, and the partition is connected to the grille frame; the first end of the rotating member is rotatably connected to the partition, and the second end of the rotating member is rotatably connected to the connecting shaft through the connecting member. Under the action of external force, the connecting shaft moves along a first direction relative to the grille frame to drive the second end of the rotating member to rotate relative to the first end of the rotating member.

2. The laser projection device according to claim 1, characterized in that: The connecting shaft comprises a shaft body and a sliding buckle, the shaft body and the connecting member are rotatably connected, the sliding buckle is connected to the shaft body, an escape opening is provided on the grille frame, and the sliding buckle passes through the escape opening; Under the action of external force, the sliding buckle moves in the avoidance opening along the first direction to drive the shaft body to move along the first direction.

3. The laser projection device according to claim 2, characterized in that: The sliding buckle is arranged in the middle of the extending direction of the shaft body.

4. The laser projection device according to claim 2, characterized in that: The connecting member comprises a connecting portion and a clamping portion, wherein the first end of the connecting portion is connected to the connecting shaft; the second end of the connecting portion is rotatably connected to the clamping portion; the clamping portion has a clamping end, and the clamping end is clamped to the rotating member.

5. The laser projection device according to any one of claims 2 to 4, characterized in that: The partition has a rotation groove, the notch of which faces away from the projection body; at least a portion of the rotating member is located in the rotation groove, and the rotating end of the rotating member is configured to rotate in the rotation groove.

6. The laser projection device according to claim 5, characterized in that: The rotation groove comprises a first rotation groove and a second rotation groove which are connected to each other; the first rotation groove is located at a side of the second rotation groove close to the projection body; along a height direction perpendicular to the projection body, a cross-sectional area of ​​the first rotation groove is smaller than a cross-sectional area of ​​the second rotation groove; The rotating member includes a first rotating portion and a second rotating portion, wherein at least a portion of the first rotating portion is located in the first rotating groove, and the second rotating portion is located in the second rotating groove.

7. The laser projection device according to claim 6, characterized in that: There are multiple partitions, and the multiple partitions are arranged in sequence along the height direction of the projection body, and both ends of the partitions are connected to the grille frame respectively; And / or, there are multiple rotating members, which are arranged at intervals along the width direction of the projection body, the first end of the rotating member and the partition are rotatably connected, and the second end of the rotating member is connected to the shaft body through the connecting member.

8. The laser projection device according to claim 6, characterized in that: The grille frame includes two vertical frames and two horizontal frames. The two vertical frames are arranged opposite to each other along the width direction of the projection body. The two horizontal frames are arranged opposite to each other along the height direction of the projection body. The vertical frames are connected to the horizontal frames. The vertical frame extends along the height direction of the projection body; and the horizontal frame extends along the width direction of the projection body.

9. The laser projection device according to claim 6, characterized in that: The mesh cover comprises two first side walls and two second side walls, the two first side walls are arranged at intervals along the height direction of the projection body; the two second side walls are arranged at intervals along the length direction of the projection body; the two ends of the second side wall are respectively connected to the two first side walls; The second side wall is provided with the installation opening, the grille assembly is located at the installation opening, the end of the second side wall away from the projection end is provided with a side groove, the notch of the side groove faces the projection end, and at least part of the grille assembly is located in the side groove.

10. A laser projection device, characterized in that: The device comprises a projection body and a mesh cover; the mesh cover is used to cover at least a part of the outside of the projection body; the mesh cover comprises a grille assembly, at least one side wall of the mesh cover is provided with a mounting opening, and the mounting opening is used to be staggered with the non-projection end of the projection body; The grille assembly comprises a grille frame, a partition, a rotating member, a connecting member and a connecting shaft, and the grille frame is used to connect with the side wall; The connecting shaft is used to be movably connected to the grille frame, and the partition is used to be connected to the grille frame; the first end of the rotating member is used to be rotatably connected to the partition, and the second end of the rotating member is used to be rotatably connected to the connecting shaft through the connecting member. Under the action of external force, the connecting shaft moves along a first direction relative to the grille frame to drive the second end of the rotating member to rotate relative to the first end of the rotating member.

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