Projector and combined projection device

Abstract

The invention relates to the technical field of projectors, in particular to a projector and a combined projection device. Comprising a shell, an electronic system assembly, a transmission assembly, an optical machine lens and a detachable external lens, the optical machine lens is fixed and adjusted through a through hole and a lens bayonet ring on the shell, and meanwhile the safety and attractiveness of the optical machine lens are ensured through the arrangement of a lens cover, a decorative ring, a clamping groove and other structures. Furthermore, the stability and the shockproof performance of the lens are improved through the design of the lens rubber sleeve, the lens cover is matched with the outline of the external lens, and the overall sealing performance and the protection effect are enhanced. The technical effect of improving the use flexibility, stability and attractiveness of the projector is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of projectors, and in particular to a projector and a combined projection device. Background Art

[0002] As a display device widely used in education, business, home entertainment and many other fields, the main function of a projector is to project images or videos onto a screen or other surface to display large-size images. With the continuous advancement of technology and people's increasing requirements for visual experience, projector technology is also continuously developing and innovating.

[0003] In the early days, the functions of projectors were relatively simple, mainly used for simple image and video playback. Their lenses were usually fixed configurations and could not meet diverse usage needs. With the continuous expansion of application scenarios, different fields have put forward higher requirements for the performance and functions of projectors. For example, in the field of education, teachers may need to flexibly switch between displaying large scene images (such as maps in geography classes) and close-up images (such as tiny objects in scientific experiments) according to different teaching contents, which poses a challenge to the focal length and field of view adjustment capabilities of the projector lens; in business presentations, in order to obtain clear and appropriately sized projection images in conference rooms of different sizes, projectors also need to have better adaptability; and in professional fields such as film and television production and art exhibitions, there are more stringent standards for the optical quality of the projection image, such as color reproduction, contrast, clarity, and the presentation of special visual effects.

[0004] In recent years, although projectors have made significant progress in brightness, resolution, etc., traditional projectors can hardly fully meet the above-mentioned diverse and personalized needs by relying solely on their built-in lenses. The built-in lens has fixed optical parameters such as focal length and field of view, which limits the applicability of the projector in different scenarios. Moreover, once the built-in lens is damaged or its performance degrades, the repair or replacement process is often complicated and costly, and may require professional technicians to operate, and may even involve disassembly of the entire projector equipment, which not only increases the repair time and cost, but may also affect the overall performance and stability of the equipment.

[0005] Therefore, based on the above problems, the prior art needs to be improved. Summary of the invention

[0006] The first purpose of this application is to provide a projector.

[0007] The above technical purpose of the present application is achieved through the following technical solutions: a projector, including a shell, the shell is surrounded to form a accommodating cavity, an electronic system component is arranged in the accommodating cavity, the electronic system component is electrically connected to a transmission component for adjusting the position of an optical machine lens, an optical machine lens is arranged on the transmission component, the optical machine lens and the electronic system component are electrically connected, a through hole is arranged on the shell, the through hole is arranged corresponding to the optical machine lens, and a lens bayonet ring is arranged on the optical machine lens for installing an external lens.

[0008] By adopting the above technical solutions, the electronic system components and transmission components of the projector work together to accurately adjust the position of the optical machine lens to meet the needs of different scenarios and improve the convenience of use. The through hole on the shell provides an optical path for the optical machine lens to ensure the normal realization of the projection function. The setting of the lens mount ring provides a convenient interface for the installation of external lenses, which greatly expands the functional diversity of the projector. For example, external lenses with different optical performance can be replaced according to different usage scenarios to achieve better projection effects, adapt to more application scenarios, and enhance the practicality and competitiveness of the product.

[0009] Optionally, a mirror cover is detachably mounted on the shell to seal the through hole.

[0010] By adopting the above technical solution, when the projector is not in use or in transportation, the mirror cover can effectively prevent dust, debris, etc. from entering the projector through the through hole, protect the internal optical machine lens and other optical components from pollution and damage, thereby extending the service life of the equipment, reducing the failure rate caused by foreign matter, and ensuring the long-term stable performance of the projector. When the projector needs to be used, the detachable mirror cover is convenient for users to operate and can be opened quickly without hindering the normal use of the projector. When replacing the external lens, the detachability of the mirror cover also provides convenience for operation and improves the user experience. When the mirror cover is made of a light-transmitting material, it can realize more innovative functions while preventing dust. It can be used as a part of the auxiliary display area of ​​the projection screen, such as displaying the working status of the projector, the current input source information, operation prompts, etc., so that users can intuitively obtain projector-related information without affecting the viewing of the projection screen, and further enhance the human-computer interaction experience. In addition, the translucent mirror cover can also be used to achieve some special projection effects or optical filter functions, such as adjusting the color, contrast and other parameters of the projected image by changing the light transmittance characteristics of the mirror cover, or achieving simple image enhancement effects, bringing users a richer and more diverse projection experience and expanding the functional boundaries of the projector.

[0011] Optionally, the through hole on the shell upper ring is provided with a mounting groove, a decorative ring is provided in the mounting groove, an opening is provided on the decorative ring, the decorative ring and the mounting groove together form a snap-fitting groove, a snap-fitting groove is provided on the mirror cover, the opening avoids the snap-fitting groove, and the mirror cover is rotated relative to the shell, and the snap-fitting groove is installed in the snap-fitting groove.

[0012] By adopting the above technical solution, a stable and reliable connection between the mirror cover and the housing is achieved by cleverly cooperating with the mounting groove, the decorative ring and the buckle on the mirror cover. The decorative ring not only plays a decorative role, but also forms a snap-in groove with the mounting groove to provide a precise fitting position for the buckle, ensuring the firmness of the mirror cover after installation, effectively preventing the mirror cover from accidentally falling off during normal use or when subjected to a certain external force impact, and ensuring the overall structural integrity of the projector. The design of setting an opening on the decorative ring to avoid the buckle makes the installation process of the mirror cover simpler and smoother. The user only needs to rotate the mirror cover relative to the housing to complete the installation operation, which greatly improves the assembly efficiency and reduces the difficulty of installation. It is extremely convenient both in the production assembly link and the user's own operation (such as replacing the mirror cover or reinstalling it after cleaning and maintenance). While ensuring the functionality, it also takes into account the ease of use, improving the overall quality and user experience of the product.

[0013] Optionally, a plurality of positioning glass beads are provided on the decorative ring, and a positioning hole is provided on the mirror cover.

[0014] By adopting the above technical solution, during the installation of the mirror cover, the cooperation between the positioning glass beads and the positioning holes can accurately locate the relative position of the mirror cover and the decorative ring, ensuring that the mirror cover can be accurately aligned with the through hole on the housing each time it is installed, effectively avoiding problems such as poor sealing and failure of the buckle to fit properly due to installation position deviation, thereby improving the accuracy and consistency of the mirror cover installation. During long-term use, even if the projector may be affected by vibration or other external forces, the interaction between the positioning glass beads and the positioning holes can keep the mirror cover in the correct position at all times, maintaining a stable sealing and connection state, ensuring the dustproof effect inside the projector, further extending the service life of the optical components inside the device, and improving the stability and reliability of the overall structure of the projector, providing users with a better and more lasting use experience.

[0015] Optionally, a lens rubber sleeve is also included, wherein a first extension piece is provided at one end of the lens rubber sleeve, the first extension piece is formed with a first embedding groove, the lens mount ring is embedded in the first embedding groove, a magnetic suction piece is provided in the first extension piece, the lens mount ring is made of metal material, and the lens mount ring and the first extension piece are adsorbed together.

[0016] By adopting the above technical solution, the first interlocking groove formed by the first extension piece and the interlocking installation method of the lens bayonet ring ensures the tight connection between the lens rubber sleeve and the lens bayonet ring, effectively preventing external dust, moisture and other impurities from entering the projector from the connection point, providing a reliable first protective barrier for the optical machine lens, ensuring the cleanliness of the optical system, and facilitating the maintenance of stable projection image quality. At the same time, the magnetic suction piece arranged in the first extension piece cooperates with the metal lens bayonet ring for adsorption, further enhancing the stability of the connection between the lens rubber sleeve and the lens bayonet ring, and effectively preventing the lens rubber sleeve from loosening or falling off even when the projector is subjected to a certain degree of shaking or external force impact, thereby ensuring the continuity of its protective function. It not only improves the dust and moisture-proof performance of the projector, but also plays an important role in ensuring the stability of the equipment, prolongs the service life of key components such as the optical machine lens, and thus improves the overall reliability and durability of the projector.

[0017] Optionally, a second extension piece is provided at one end of the lens rubber sleeve away from the first extension piece, and the second extension piece is clamped by the bottom of the mounting groove and the end surface of the lens cover.

[0018] By adopting the above technical solution, the lens rubber sleeve can be firmly fixed between the shell and the lens cover, and the stability of the lens rubber sleeve in the projector structure is enhanced. On the one hand, it effectively prevents the lens rubber sleeve from being displaced or falling off when the projector is in normal use or subjected to slight external force, ensuring that it is always in the correct position and continues to play a sealing and protective role on the optical machine lens. On the other hand, through coordination with other components, a more rigorous protection system is formed to further prevent harmful factors such as dust and moisture from entering the projector, creating a more stable and clean working environment for optical components such as optical machine lenses, helping to extend the service life of optical components, maintain the long-term stable performance of the projector, and improve the overall reliability and durability of the product.

[0019] Optionally, a third extending piece is provided on the second extending piece, the third extending piece is parallel to the mirror cover along the axial direction, and the third extending piece is in close contact with the side surface of the mirror cover.

[0020] By adopting the above technical solution, the close contact between the third extension piece and the side of the lens cover further enhances the stability of the lens rubber sleeve in the axial direction, effectively preventing the lens rubber sleeve from being displaced or shaken in this direction, ensuring that it always maintains a fixed position during the use of the projector, thereby stably playing a sealing and protective role for the optical machine lens. The third extension piece and other components together construct a more complete protective structure system, which complements the design of the second extension piece clamped by the bottom of the mounting groove and the end face of the lens cover, further improving the overall installation firmness of the lens rubber sleeve and reducing the possibility of it loosening due to external factors. The close contact design can better fill the tiny gaps that may exist between the components, further improving the dustproof, moisture-proof and other protective properties, providing a more stable and reliable working environment for the optical machine lens, helping to extend the service life of the optical machine lens and the entire projector, and improving the durability of the product.

[0021] Optionally, the wall thickness of the lens rubber sleeve is 0.5 mm to 1.5 mm, and a plurality of annular reinforcing ribs are evenly spaced on the lens rubber sleeve.

[0022] By adopting the above technical solution, a reasonable wall thickness range ensures that the lens rubber sleeve has a certain structural strength to maintain its shape stability and protective function, while not affecting the operational flexibility of the lens such as the axis shift due to excessive thickness, thus ensuring that the normal function of the projector optical lens is not hindered. The evenly spaced annular reinforcement ribs further enhance the overall strength of the lens rubber sleeve, enabling it to better resist external pressure, impact force and stress caused by factors such as temperature changes, effectively preventing the rubber sleeve from deforming and cracking, thereby continuously and effectively providing reliable sealing and protection for the optical lens, blocking the entry of harmful substances such as dust and moisture. Not only does it extend the service life of the lens rubber sleeve itself and reduce the equipment maintenance cost caused by damage to the rubber sleeve, but it also creates a more stable and safe working environment for the optical lens, helps maintain the long-term stable performance of the projector, improves the durability and reliability of the product, and brings users a more lasting and high-quality use experience.

[0023] Optionally, the lens cover includes a cover body and a connecting portion, and the shape and size of the cover body match the outline of the external lens.

[0024] By adopting the above technical solution, the shape and size of the cover body match the contour of the external lens, making the overall appearance of the projector more coordinated and unified, improving the aesthetics and integrity of the product, and giving users a more comfortable visual experience. In terms of function, when installing an external lens, it can better adapt to the shape of the external lens, provide more comprehensive protection for the external lens, and reduce the risk of damage to the external lens by external factors. At the same time, during operation, when the user needs to install or remove the external lens, the shape-matched cover body facilitates the user to accurately position and operate, improves the convenience and accuracy of operation, and reduces equipment damage or inconvenience caused by misoperation. In addition, the appropriate cover shape can also optimize the aerodynamic performance of the projector to a certain extent, reduce the noise generated by air flow or interference with the internal optical system, and further improve the performance of the projector, thereby enhancing the market competitiveness of the product and providing users with a better user experience.

[0025] The second purpose of this application is to provide a combined projection device.

[0026] The above technical purpose of the present application is achieved through the following technical solutions: a combined projection device, including the projector as mentioned above, and also including an external lens, which is installed by cooperating with the groove on the outer wall of the lens mount ring through the claws set at the end.

[0027] By adopting the above technical solution, the combined design of the projector and the external lens greatly expands the diversity of projection functions. Users can easily and quickly replace external lenses with different optical characteristics (such as focal length, viewing angle, special optical effects, etc.) according to different usage scenarios and needs, such as different projection distances, projection environments or specific screen display requirements, so as to achieve more accurate and higher-quality projection effects and meet the needs of diverse application scenarios. The external lens is installed by the matching installation method of the claw and the outer wall groove of the lens bayonet ring, which ensures the firmness and stability of the installation. While ensuring the reliable connection of the lens, it is also convenient for users to quickly replace the operation, which improves the convenience and flexibility of use. This combined projection device not only improves the functionality and practicality of the product, but also provides users with a more personalized and professional projection solution, enhances the competitiveness of the product in the market, and promotes the widespread application of projection technology in more fields.

[0028] In summary, this application has at least the following beneficial effects: 1. The internal structure of the projector is reasonably designed. The electronic system components, transmission components and optical machine lens work together to accurately adjust the position of the optical machine lens to meet the needs of different scenarios and improve ease of use. At the same time, the through holes and lens mount rings on the shell provide a convenient interface for the installation of external lenses, expanding functional diversity.

[0029] 2. The mirror cover on the housing and its related mounting structures (such as mounting grooves, decorative rings, buckles, positioning glass beads, etc.) are cleverly designed, which not only ensures that the mirror cover can be opened quickly when the projector is in use without affecting normal use, but also effectively prevents dust from entering the interior when not in use or during transportation, thereby protecting optical components and extending the service life of the equipment. It is also easy to install, which improves assembly efficiency and product stability.

[0030] 3. The structural design of the lens rubber sleeve (including the first extension piece, the magnetic suction piece, the second extension piece, the third extension piece, the appropriate wall thickness and the annular reinforcement ribs, etc.) enhances the sealing and protection of the optical machine lens, improves the overall stability, prevents the entry of external impurities, and at the same time ensures that operations such as lens shift are not affected, thereby extending the service life of the lens and projector and improving the durability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a projector; Figure 2 It is a structural schematic diagram of a combined projection device; Figure 3 This is a schematic diagram of the mirror cover installation; Figure 4 is a schematic diagram of the structure of the decorative ring; Figure 5 It is a schematic diagram of the structure of the mirror cover; Figure 6 It is a schematic diagram of the structure of the lens rubber sleeve; Figure 7 yes Figure 2 The enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the assembly of the lens cover to adapt to the external lens.

[0032] Reference numerals 1. Shell; 2. Accommodating cavity; 3. Transmission assembly; 4. Optical machine lens; 5. Through hole; 6. Lens bayonet ring; 7. External lens; 8. Lens cover; 9. Mounting groove; 10. Decorative ring; 11. Opening; 12. Snap-in groove; 13. Buckle; 14. Positioning glass bead; 15. Positioning hole; 16. Lens rubber sleeve; 17. First extension piece; 18. First interlocking groove; 19. Second extension piece; 20. Third extension piece; 21. Annular reinforcement rib. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings.

[0034] Example 1 In this embodiment, refer to Figure 1-7A projector includes a housing 1, a housing 1 having a housing chamber 2, an electronic system component being arranged in the housing chamber 2, the electronic system component being electrically connected to a transmission component 3 for adjusting the position of an optical machine lens 4, the transmission component 3 being provided with an optical machine lens 4, the optical machine lens 4 being electrically connected to the electronic system component, a through hole 5 being arranged on the housing 1, the through hole 5 being arranged corresponding to the optical machine lens 4, the optical machine lens 4 being provided with a lens bayonet ring 6 for detachably installing an external lens 7. Through this design, the optical machine lens 4 can be flexibly adjusted and the external lens 7 can be conveniently installed, thereby improving the performance of the projector and the user experience.

[0035] Specifically, the transmission assembly 3 may include a motor, a transmission gear (including a driving gear connected to the motor shaft and a plurality of driven gears), a guide rail and a slider. The driving gear and the driven gear are precisely meshed with each other to transmit the rotational motion of the motor to the optical machine lens 4. The optical machine lens 4 is slidably mounted on the guide rail, which adopts a high-precision linear guide rail, and its surface has been specially treated to have the characteristics of low friction coefficient and high rigidity. The guide rail provides precise guidance for the movement of the optical machine lens 4, ensuring that the optical machine lens 4 maintains stable and linear motion during the left and right, front and back movement, without offset or shaking, thereby ensuring the stability and accuracy of the projected image. The slider is fixedly connected to the optical machine lens 4 and slides with the guide rail. When the electronic system component receives an instruction from the user to adjust the left and right position of the optical machine lens 4, the control module sends a corresponding control signal to the motor, and the motor starts to rotate. The driving gear on the motor shaft rotates accordingly, and drives the driven gear to rotate through gear meshing, so that the transmission component (such as a rack, etc.) connected to the slider generates a horizontal linear motion, and the slider drives the optical machine lens 4 to move accurately in the horizontal direction (left and right) along the guide rail. Similarly, when it is necessary to adjust the front and rear position of the optical machine lens 4, the electronic system component controls the motor to reverse or through different transmission paths (such as switching gear meshing methods, etc.), so that the transmission gear set generates driving forces in different directions, drives the slider and the optical machine lens 4 to perform precise linear motion on the guide rail perpendicular to the horizontal direction (front and back), and realizes the adjustment of the front and rear position of the optical machine lens 4. In the whole process, the speed and direction of the motor are precisely controlled by the electronic system component according to the preset algorithm and user instructions to ensure that the optical machine lens 4 can accurately move to the user's desired position and meet the requirements for the picture position and focus in different projection scenes. At the same time, in order to improve the accuracy and stability of the adjustment, a position sensor can also be set in the transmission component 3 to monitor the position information of the optical machine lens 4 in real time, and feed it back to the electronic system component to form a closed-loop control system to further optimize the adjustment effect.

[0036] The electronic system components mainly include control modules, power modules, signal processing modules and drive modules. The control module is the core part, for example, a microprocessor or a dedicated chip can be used. It is responsible for receiving instructions input by the user through the remote control or control panel, such as instructions for adjusting the position of the optical machine lens 4, instructions for switching the external lens 7, etc., and generating corresponding control signals according to these instructions. The power module provides a stable power supply for the entire electronic system component and the transmission component 3 and optical machine lens 4 connected thereto to ensure the normal operation of each component. It can convert the mains electricity into direct current suitable for the components inside the device, and has functions such as overvoltage protection and overcurrent protection to ensure the safe and stable operation of the device. The signal processing module is mainly responsible for processing video signals from external devices (such as computers, DVD players, etc.), decoding them, format conversion, etc., and converting them into a signal format suitable for projection by the optical machine lens 4. The drive module receives the control signal sent by the control module and converts it into a current and voltage signal that can drive the motor in the transmission component 3 to work, thereby realizing precise control of the motor, and then controlling the position adjustment of the optical machine lens 4 and the interactive operation with the external lens 7. In addition, the electronic system component may also include a storage module for storing device setting parameters, user preferences and other information, so that the device can be quickly restored to the previous working state when it is used again, thereby improving the user experience. At the same time, in order to achieve communication and data transmission with external devices, the electronic system component also has a variety of communication interfaces, such as HDMI interface, USB interface, etc., which is convenient for users to connect various external devices for projection playback.

[0037] Specifically, refer to Figure 3 The housing 1 can be made of aluminum alloy material, which has good heat dissipation performance and high strength. The housing 1 is provided with a through hole 5, and the diameter of the through hole 5 can be designed according to the actual size of the optical machine lens 4. The housing 1 is detachably provided with a lens cover 8 for blocking the through hole 5. The lens cover 8 can be made of transparent plastic, which is both beautiful and does not affect the light transmission.

[0038] Reference Figure 4-5 The housing 1 has a mounting groove 9 on the ring through hole 5, and a decorative ring 10 is arranged in the mounting groove 9. The decorative ring 10 can be made of stainless steel, which has good corrosion resistance and glossiness. The decorative ring 10 has an opening 11, and the decorative ring 10 and the mounting groove 9 together form a snap-fit ​​groove 12. The mirror cover 8 has a snap 13, and the opening 11 avoids the snap 13. When the mirror cover 8 rotates relative to the housing 1, the snap 13 is fitted and installed into the snap-fit ​​groove 12. This design makes the installation and removal of the mirror cover 8 more convenient, and also ensures the sealing performance.

[0039] The decorative ring 10 is provided with a plurality of positioning glass beads 14, and the mirror cover 8 is provided with positioning holes 15. The positioning glass beads 14 can play a positioning role during the installation of the mirror cover 8 to ensure that the mirror cover 8 is accurately installed in place. The positioning glass beads 14 can be made of ceramic material with high hardness and wear resistance.

[0040] Reference Figure 6-7 , and also includes a lens rubber sleeve 16, a first extension piece 17 is provided at one end of the lens rubber sleeve 16, and the first extension piece 17 is formed with a first fitting groove 18, the lens bayonet ring 6 is fitted and installed in the first fitting groove 18, and a magnetic suction piece is provided in the first extension piece 17, and the lens bayonet ring 6 is made of metal material, preferably galvanized iron material, and the lens bayonet ring 6 and the first extension piece 17 are adsorbed together. The lens rubber sleeve 16 can be made of silicone material, which has good elasticity and sealing. The magnetic suction piece can be made of neodymium iron boron magnet, which has strong magnetism, to ensure the stable connection between the lens rubber sleeve 16 and the lens bayonet ring 6.

[0041] A second extension piece 19 is provided at one end of the lens rubber sleeve 16 away from the first extension piece 17, and the second extension piece 19 is clamped by the bottom of the mounting groove 9 and the end surface of the lens cover 8. The second extension piece 19 can be designed as a wave-shaped structure to increase the contact area with the housing 1 and improve the sealing effect. A third extension piece 20 is provided on the second extension piece 19, and the third extension piece 20 is parallel to the lens cover 8 along the axial direction, and the third extension piece 20 is closely abutted against the side of the lens cover 8. The contact area with the lens cover 8 is increased, and the sealing performance is further improved.

[0042] The wall thickness of the lens rubber sleeve 16 is 0.5 mm to 1.5 mm. A plurality of annular reinforcing ribs 21 are evenly spaced on the lens rubber sleeve 16. The annular reinforcing ribs 21 can increase the rigidity of the lens rubber sleeve 16 and reduce deformation caused by external pressure. The spacing of the annular reinforcing ribs 21 can be designed to be 3 mm to 5 mm to ensure uniform distribution.

[0043] Reference Figure 8 The lens cover 8 includes a cover body and a connecting portion, and the shape and size of the cover body match the outline of the external lens 7. The cover body can be designed to be round or square to accommodate external lenses 7 of different shapes. The connecting portion can be designed to be a rotating buckle structure to facilitate users to quickly install and remove.

[0044] Reference Figure 2A combined projection device includes the above-mentioned projector and an external lens 7, which is installed by the claws provided at the end thereof and the slots on the outer peripheral wall of the lens bayonet ring 6. Before installing the external lens 7, carefully check whether the claws of the external lens 7 are deformed, damaged or attached with foreign matter. At the same time, check whether the area around the projector lens bayonet ring 6 is clean and free of dust, oil and other impurities to ensure a good installation environment. The central axis of the external lens 7 is roughly aligned with the central axis of the projector optical machine lens 4. This step can be completed by observing the marks or reference points on the external lens 7 and the projector housing to ensure that the two are on the same axis and the error is controlled within a small range, generally not exceeding ±0.5mm, to ensure the optical alignment accuracy after installation. Hold the external lens 7 and align the head of the claw with the slot entrance on the outer peripheral wall of the lens bayonet ring 6. Gently push the external lens 7 toward the projector and slightly rotate the external lens 7 so that the claw can gradually slide into the slot along the guidance of the slot entrance. During the pushing process, keep the force even to avoid excessive force that may damage the claw or cause improper installation. When the claw begins to enter the slot, you will feel a certain amount of resistance, which is normal. Continue to push slowly until the claw is fully inserted into the slot. When the claw is fully inserted into the slot, gently pull the external lens 7 to check whether it is firmly installed. If there is no obvious displacement or shaking of the external lens 7, and a slight "click" sound can be heard, it means that the claw has been correctly locked into the locking position in the slot. At this point, the external lens 7 and the projector have been successfully installed and connected.

[0045] The installation method of the claw and the slot makes the replacement of the external lens 7 extremely convenient. The user can switch between different external lenses 7 in a short time through simple manual operation without the help of complex tools. For example, in a conference scene, if it is necessary to switch from displaying documents to playing videos, the user can quickly change to an external lens 7 suitable for video playback, which improves the use efficiency of the equipment and adapts to the rapid conversion requirements of different application scenarios. Users can choose different types of external lenses 7 according to their actual needs, such as telephoto lenses for long-distance projection, wide-angle lenses for expanding the projection range, and macro lenses for close-range projection details. This flexibility greatly expands the application scope of the combined projection device and meets the diverse projection needs of users in different occasions. The close fit between the claw and the slot ensures the firm connection of the external lens 7 on the projector. During the operation of the projector, even if it is subjected to a certain degree of vibration or slight collision, the external lens 7 will not easily loosen or fall off, ensuring the stability of the projected image. For example, when the projector is moved to perform projection at different locations, or when there are certain vibration sources in the surrounding environment (such as air conditioning equipment, fans, etc.) during the operation of the projector, the external lens 7 can still be stably maintained in the installation position to ensure the continuity of the projection process and the stability of the image quality. Since the external lens 7 can maintain a stable position and good concentricity after installation, the optical system between it and the projector optical machine lens 4 can always maintain an accurate match. This helps to ensure that the optical performance indicators such as the clarity and color reproduction of the projected image are not affected, and provide users with high-quality projection images. Whether it is in long-term conference projection or continuous playback in a home theater, stable optical performance can always be maintained, which improves the user experience.

[0046] The implementation principle of this embodiment is as follows: through the reasonable design of the housing 1, the lens cover 8, the decorative ring 10, the lens rubber sleeve 16 and other components, the flexible adjustment of the optical machine lens 4 and the convenient installation of the external lens 7 are realized, thereby improving the performance and user experience of the projector. In particular, through the design of the lens rubber sleeve 16, the stable sealing of the optical machine head is ensured when the optical machine lens 4 moves up and down, dust is prevented from entering, and the reliability and service life of the projector are improved.

[0047] Example 2 The difference between this embodiment and the above embodiment is that the lens cover 8 includes a cover body and a connecting portion, and the shape and size of the cover body match the outline of the external lens 7. The cover body is made of transparent or translucent engineering plastic material, such as polycarbonate (PC) or acrylic (PMMA). These materials have good optical properties, can ensure the clarity and uniformity of light when passing through, and have high strength and wear resistance, which can effectively prevent scratches and damage in daily use.

[0048] The cover is precisely designed according to the contour shape of the external lens 7. For example, if the external lens 7 is circular, the cover is designed to be circular and its diameter is slightly larger than the diameter of the external lens 7 to ensure that the lens is fully covered and protected. For some special shapes of the external lens 7, such as square or oval, the cover is also designed to match the shape accordingly, and the edges are rounded to avoid sharp corners, which ensures both aesthetics and prevents accidental injuries. On the surface of the cover, a slight curvature design can be made to match the curvature of the external lens 7, better fit the lens surface, and improve the protection effect.

[0049] In order to further improve the optical performance, the inner surface of the cover can be treated with an anti-reflective coating to reduce the reflection loss of light on the cover surface and improve the brightness and contrast of the projected image. At the same time, for some high-end application scenarios, the cover can also have certain optical filter functions, such as ultraviolet (UV) filtering, to prevent ultraviolet rays from damaging the lens and internal optical components and extend the service life of the equipment.

[0050] The connection part is made of a flexible material, such as rubber or silicone, to ensure that it has a certain degree of flexibility and elasticity. One end of the connection part is fixedly connected to the cover body, for example, by injection molding or glue bonding, to ensure that the connection is firm and reliable. The other end is designed with a connection component that matches the mounting structure on the housing 1, such as a buckle, a slot or a magnetic structure.

[0051] If a buckle structure is adopted, the buckle on the connection part can be designed as an elastic hook, and the shape and size of the hook are adapted to the slot on the housing 1. When installing the mirror cover 8, the user only needs to align the mirror cover 8 with the installation position on the housing 1 and press it gently, and the hook can be snapped into the slot to achieve quick installation. At the same time, in order to prevent the buckle from accidentally falling off, the design of the buckle 13 can adopt a double buckle or multi-buckle form, and a certain anti-slip pattern is set inside the buckle to increase the friction between the buckle and the slot. If a magnetic attraction structure is adopted, a small magnet is embedded in the connection part, and accordingly, a metal sheet or a magnet with opposite magnetic properties is installed at the corresponding position on the housing 1. When installing the mirror cover 8, the mirror cover 8 can be automatically adsorbed on the housing 1 through magnetic attraction, and the installation process is simple and convenient. The advantage of the magnetic attraction structure is that it can achieve quick disassembly and installation, and can still maintain good connection stability after multiple uses. In order to ensure that the magnetic attraction strength is moderate, the selection and layout of the magnets need to be accurately calculated and tested, so as to ensure that the mirror cover 8 will not fall off accidentally under normal use, and to facilitate manual disassembly by users.

[0052] The connection between the connection part and the cover and the housing 1 should also have good sealing performance to prevent dust, moisture and other impurities from entering the projector through the connection gap. A circle of sealing strips can be designed on the edge of the connection part or a sealant can be used for sealing to ensure that a tight sealing structure is formed between the connection part and the cover and the housing 1, further improving the overall protection performance of the projector.

[0053] The implementation principle of this embodiment is as follows: in actual use, when the user replaces the external lens 7, he only needs to follow the corresponding operation steps (such as first unlocking the connection part of the lens cover 8, then removing the lens cover 8, replacing the external lens 7 and then reinstalling the lens cover 8) to easily complete the operation. Since the shape and size of the cover body match the outline of the external lens 7, the user can quickly and accurately position the lens cover 8 when installing it, thereby improving the operation efficiency. At the same time, the flexible design of the connection part makes the lens cover 8 have a certain fault tolerance during the installation process. Even if the installation position is slightly deviated, it can be adjusted through the elastic deformation of the connection part to ensure that it is installed in place. The design of the lens cover 8 can not only effectively protect the external lens 7 from damage such as dust, fingerprints, collisions, etc., and extend the service life of the lens, but also make the projector more neat and beautiful in appearance through perfect matching with the outline of the external lens 7 and reasonable material selection and appearance design, thereby improving the overall image of the product and user experience. Whether in the use of the projector or when it is stored, the lens cover 8 can play a good protective role and provide guarantee for the long-term stable operation of the projector.

[0054] Example 3 The difference between this embodiment and the above embodiment is that: a temperature sensor is provided on the housing 1, and the temperature sensor is electrically connected to the electronic system component for real-time monitoring of the temperature inside the housing 1. The temperature sensor can be made of a thermistor, which has high sensitivity and response speed. The temperature sensor can be installed near the electronic system component to detect the area where heat is generated in time. A cooling fan is also provided on the housing 1, and the cooling fan is electrically connected to the electronic system component to start when the temperature is too high to help dissipate heat. The cooling fan can be driven by a brushless DC motor, which has low noise and long service life. The cooling fan can be installed at the bottom or side of the housing 1 to better guide the air flow and improve the heat dissipation efficiency. A plurality of heat dissipation holes are provided on the housing 1, and the heat dissipation holes are distributed on the top and sides of the housing 1 to facilitate air circulation. The diameter of the heat dissipation hole can be designed to be 3mm to 5mm to ensure sufficient ventilation while preventing dust from entering. The heat dissipation hole can be designed as a mesh structure to increase the surface area and improve the heat dissipation effect.

[0055] A humidity sensor is also provided on the housing 1, and the humidity sensor is electrically connected to the electronic system component, and is used to monitor the humidity inside the housing 1 in real time. The humidity sensor can be made of a hygroscopic resistor, and has high sensitivity and stability. The humidity sensor can be installed at a position close to the through hole 5, so as to detect humidity changes in time and prevent water vapor condensation. A dehumidification module is provided on the housing 1, and the dehumidification module is electrically connected to the electronic system component, and is used to start when the humidity exceeds the standard to remove moisture from the housing 1. The dehumidification module can be made of a semiconductor dehumidifier, and has low energy consumption and a faster dehumidification speed. The dehumidification module can be installed at the bottom of the housing 1, so as to better absorb moisture.

[0056] The implementation principle of this embodiment is: by adding a temperature sensor, a cooling fan, a humidity sensor and a dehumidification module, the internal environment of the housing 1 is fully monitored and controlled, effectively solving the problem that traditional projectors are prone to failure in high temperature and high humidity environments. In particular, the intelligent temperature control and dehumidification functions improve the stability and reliability of the projector and extend its service life.

[0057] Example 4 The difference between this embodiment and the above embodiment is that: a shockproof pad is provided on the housing 1, and the shockproof pad is provided at the bottom of the housing 1 to reduce the impact of external vibration on the projector. The shockproof pad can be made of rubber material with good elasticity and damping properties. The shockproof pad can be designed to be rectangular or circular to adapt to the bottom of the housing 1 of different shapes.

[0058] The housing 1 is provided with a wireless communication module, which is electrically connected to the electronic system components for remote control and data transmission. The wireless communication module can support multiple communication protocols such as Wi-Fi and Bluetooth, and has a high transmission rate and stability. The wireless communication module can be installed on the top or side of the housing 1 to better receive and send signals.

[0059] The housing 1 is provided with a power management module, which is electrically connected to the electronic system components and is used to manage and allocate power resources. The power management module can support multiple power supply modes, such as AC power, battery, etc., and has high flexibility and reliability. The power management module can be installed at the bottom of the housing 1 to better manage power resources.

[0060] The housing 1 is provided with an audio output interface, which is electrically connected to the electronic system component for outputting audio signals. The audio output interface can support a variety of audio formats, such as MP3, WAV, etc., and has high compatibility and sound quality. The audio output interface can be installed on the side of the housing 1 so that the user can easily connect headphones or speakers.

[0061] The implementation principle of this embodiment is: by adding anti-vibration pads, wireless communication modules, power management modules and audio output interfaces, all-round protection and enhanced functions of the projector are achieved. In particular, the design of anti-vibration pads effectively reduces the impact of external vibrations on the projector, and improves the stability and reliability of the projector. With the support of wireless communication modules and power management modules, the projector can maintain efficient operation in various environments to meet the diverse needs of users.

[0062] Example 5 The difference between this embodiment and the above embodiment is that an ambient light sensor is provided on the housing 1, and the ambient light sensor is electrically connected to the electronic system component for real-time monitoring of the light intensity of the surrounding environment. The ambient light sensor can be made of a photodiode, which has high sensitivity and response speed. The ambient light sensor can be installed on the top or side of the housing 1 to detect light changes in a timely manner.

[0063] The housing 1 is provided with an automatic dimming module, which is electrically connected to the electronic system components and is used to automatically adjust the brightness of the projector according to the detection results of the ambient light sensor. The automatic dimming module can support multiple dimming modes, such as manual, automatic, and timed, and has a high level of flexibility and intelligence. The automatic dimming module can be installed at the bottom of the housing 1 to better manage brightness adjustment.

[0064] The housing 1 is provided with an infrared remote control receiver, which is electrically connected to the electronic system component and is used to receive remote control commands issued by the user. The infrared remote control receiver can support a variety of remote control protocols, such as NEC, RC5, etc., and has high compatibility and stability. The infrared remote control receiver can be installed at the front end or side of the housing 1 for easy operation by the user.

[0065] The housing 1 is provided with a voice recognition module, which is electrically connected to the electronic system components and is used to receive the user's voice commands and perform corresponding operations. The voice recognition module can support multiple languages ​​and dialects and has a high recognition rate and response speed. The voice recognition module can be installed on the top or side of the housing 1 to better receive voice commands.

[0066] The implementation principle of this embodiment is: by adding an ambient light sensor, an automatic dimming module, an infrared remote control receiver and a voice recognition module, intelligent control and optimization of the projector are achieved. In particular, the collaborative work of the ambient light sensor and the automatic dimming module ensures that the projected image always has the best viewing effect under different lighting conditions. With the support of the infrared remote control receiver and the voice recognition module, the user can operate the projector more conveniently, improving the user experience.

[0067] Example 6 The difference between this embodiment and the above embodiment is that a camera is provided on the housing 1, and the camera is electrically connected to the electronic system component to capture the actual effect of the projection picture. The camera can be made of a CMOS sensor with high resolution and low illumination performance. The camera can be installed at the front end or side of the housing 1 to capture the full view of the projection picture.

[0068] An image processing module is provided on the housing 1, and the image processing module is electrically connected to the electronic system components for processing and optimizing the images captured by the camera. The image processing module can support a variety of image processing algorithms, such as sharpening, denoising, color correction, etc., and has high processing capabilities and optimization effects. The image processing module can be installed at the bottom of the housing 1 to better manage image processing tasks.

[0069] The housing 1 is provided with a cloud storage module, which is electrically connected to the electronic system components and is used to upload the processed image data to the cloud server. The cloud storage module can support a variety of cloud storage services, such as Alibaba Cloud, Tencent Cloud, etc., with high security and support capabilities. The cloud storage module can be installed on the side of the housing 1 to better manage data upload tasks.

[0070] The housing 1 is provided with a data analysis module, which is electrically connected to the electronic system components and is used to analyze and mine the data uploaded to the cloud. The data analysis module can support a variety of data analysis algorithms, such as machine learning, data mining, etc., and has high analysis capabilities and application value. The data analysis module can be installed at the bottom of the housing 1 to better manage data analysis tasks.

[0071] The implementation principle of this embodiment is: by adding a camera, an image processing module, a cloud storage module and a data analysis module, real-time monitoring and optimization of the projection image are achieved. In particular, the quality and effect of the projection image are ensured through the coordinated work of the camera and the image processing module. With the support of the cloud storage module and the data analysis module, users can more conveniently obtain and analyze projection data, thereby improving the intelligence level and application value of the projector.

[0072] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A projector, characterized in that: The invention comprises a shell (1), wherein the shell (1) is surrounded by a receiving cavity (2), wherein an electronic system component is arranged in the receiving cavity (2), wherein the electronic system component is electrically connected to a transmission component (3) for adjusting the position of an optical machine lens (4), wherein the optical machine lens (4) is arranged on the transmission component (3), wherein the optical machine lens (4) and the electronic system component are electrically connected, wherein the shell (1) is provided with a through hole (5), wherein the through hole (5) is arranged corresponding to the optical machine lens (4), and wherein the optical machine lens (4) is provided with a lens bayonet ring (6) for mounting an external lens (7).

2. A projector according to claim 1, characterized in that: A mirror cover (8) is detachably mounted on the housing (1) and is used to seal the through hole (5).

3. A projector according to claim 2, characterized in that: The housing (1) is provided with a mounting groove (9) around the through hole (5), a decorative ring (10) is provided in the mounting groove (9), an opening (11) is provided on the decorative ring (10), the decorative ring (10) and the mounting groove (9) are combined to form a snap-fit ​​groove (12), the mirror cover (8) is provided with a snap-fit ​​(13), the opening (11) avoids the snap-fit ​​(13), and the snap-fit ​​(13) is fitted into the snap-fit ​​groove (12) by the mirror cover (8) rotating relative to the housing (1).

4. A projector according to claim 3, characterized in that: The decorative ring (10) is provided with a plurality of positioning glass beads (14), and the mirror cover (8) is provided with a positioning hole (15).

5. A projector according to claim 4, characterized in that: The invention also comprises a lens rubber sleeve (16), one end of which is provided with a first extension piece (17), the first extension piece (17) is formed with a first engaging groove (18), the lens bayonet ring (6) is engaged and installed in the first engaging groove (18), a magnetic attraction piece is provided in the first extension piece (17), the lens bayonet ring (6) is made of metal material, and the lens bayonet ring (6) and the first extension piece (17) are adsorbed in cooperation.

6. A projector according to claim 5, characterized in that: A second extension piece (19) is provided at one end of the lens rubber sleeve (16) away from the first extension piece (17), and the second extension piece (19) is clamped by the bottom of the mounting groove (9) and the end surface of the lens cover (8).

7. A projector according to claim 6, characterized in that: A third extending piece (20) is provided on the second extending piece (19), the third extending piece (20) is parallel to the mirror cover (8) along the axial direction, and the third extending piece (20) is in close contact with the side surface of the mirror cover (8).

8. A projector according to claim 7, characterized in that: The wall thickness of the lens rubber sleeve (16) is 0.5 mm to 1.5 mm, and a plurality of annular reinforcing ribs (21) are evenly spaced on the lens rubber sleeve (16).

9. A projector according to claim 2, characterized in that: The lens cover (8) comprises a cover body and a connecting portion, and the shape and size of the cover body match the contour of the external lens (7).

10. A combined projection device, comprising a projector as claimed in any one of claims 1 to 9, characterized in that: It comprises an external lens (7), wherein the external lens (7) is installed by cooperating with a clamping groove on the outer peripheral wall of a lens bayonet ring (6) through a clamping claw arranged at the end.

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