Projection ray machine convenient to disassemble and maintain

Abstract

The utility model relates to the technical field of projection ray machines, in particular to a projection ray machine convenient to disassemble and maintain, which comprises a ray machine main shell, an imaging Fresnel lens assembly, a reflecting mirror assembly, an LCD (liquid crystal display) module, an illumination Fresnel lens and heat insulation polarization glass are arranged in the ray machine main shell, and the imaging Fresnel lens assembly is connected with the reflecting mirror assembly through a detachable support. The imaging Fresnel lens assembly is arranged on the light machine main shell and located on the upper portion of the light machine main shell, the LCD module is arranged below the imaging Fresnel lens assembly and fixed to the light machine main shell through a positioning pin, the illumination Fresnel lens and the heat insulation polarization glass are installed at the bottom of the LCD module, and the illumination Fresnel lens is connected with the light machine main shell through a guide rail. And the heat-insulating polarization glass is connected with the optical machine main shell through an elastic buckle. According to the projection ray machine convenient to disassemble and maintain, independent disassembly and maintenance of all key assemblies are achieved, the maintenance process is greatly simplified, the maintenance cost and difficulty are reduced, and the overall reliability and maintenance efficiency of equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a projection light machine technical field, concretely is a projection light machine convenient to disassemble and maintain. BACKGROUND

[0002] LCD (liquid crystal display) projection technology is a popular projection method, which controls light by using liquid crystal panel to form an image on the screen. LCD itself does not emit light, and needs to rely on multiple optical elements such as light source (LED), mirror, reflector bowl, field lens, polarizer, etc. to form a light path together to provide a stable light source for the liquid crystal panel, and finally the picture is projected onto the screen by the projection lens. Due to the large number of components and complex structure, the assembly process of the whole projection light machine is relatively complex, and the manufacturing process is relatively high.

[0003] The existing projection light machine design usually adopts a whole structure, and various key components are tightly integrated together, which leads to the need to remove a large number of components to access the fault point during maintenance, greatly reducing the maintenance efficiency, and also increasing the maintenance cost. For example, when a certain optical element such as imaging field lens or mirror inside the projection light machine fails, the technician must first remove the multiple components covering it, including the shell, heat dissipation system and other optical elements, before replacing or repairing it. This process not only consumes time and effort, but also easily damages other normally working components due to misoperation, further increasing the risk and cost of maintenance. SUMMARY

[0004] The purpose of the utility model is to provide a projection light machine convenient to disassemble and maintain, to solve the problem of the current LCD projection light machine needing to remove a large number of components during maintenance, low maintenance efficiency, high cost and high requirements for technicians raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a projection light machine convenient to disassemble and maintain, comprising a light machine main shell, the inside of the light machine main shell is provided with an imaging field lens assembly, a mirror assembly, an LCD module, an illumination field lens and a heat insulation polarizing glass, the imaging field lens assembly and the mirror assembly are connected through a detachable support and located at the upper part of the light machine main shell, the LCD module is arranged below the imaging field lens assembly and fixed with the light machine main shell through a positioning pin, the illumination field lens and the heat insulation polarizing glass are respectively installed at the bottom of the LCD module, and the illumination field lens is connected with the light machine main shell through a guide rail, and the heat insulation polarizing glass is connected with the light machine main shell through an elastic buckle.

[0006] Preferably, the detachable support is composed of two symmetrical L-shaped metal sheets, each of which is provided with a plurality of threaded holes, and one end of the L-shaped metal sheet of the detachable support is tightly attached to the bottom edge of the imaging lens assembly, and the other end is fixed to the inner side wall of the main shell of the light machine.

[0007] Preferably, the positioning pin is in a cylindrical structure, one end of which is embedded in a pre-set hole in the back of the LCD module, and the other end is inserted into a hole in the corresponding position of the main shell of the light machine.

[0008] Preferably, the elastic buckle is arranged around the heat-insulating polarizing glass, the main body part of the elastic buckle is embedded in the reserved groove on the main shell of the light machine, the exposed part of the elastic buckle covers the edge of the heat-insulating polarizing glass, and the outer edge of the heat-insulating polarizing glass is wrapped with a layer of silica gel protective sleeve.

[0009] Preferably, the imaging lens assembly comprises a convex lens and a concave lens, and the two are connected through an adjusting screw, and the adjusting screw passes through the frame of the convex lens and is fixed to the frame of the concave lens.

[0010] Preferably, a transparent protective plate is mounted on the front of the LCD module, the transparent protective plate is fixed to the front surface of the LCD module by magnetic attraction, and the bottom of the main shell of the light machine is provided with a plurality of heat dissipation fins and is aligned with the air vents at the bottom of the main shell of the light machine.

[0011] Compared with the prior art, the projection light machine convenient to disassemble and maintain has the advantages that the independent disassembly and maintenance of the key components are realized, the maintenance process is greatly simplified, the maintenance cost and difficulty are reduced, the risk of damage to other components during maintenance is reduced, and the overall reliability and maintenance efficiency of the equipment are improved. The projection light machine convenient to disassemble and maintain is designed through the detachable support, the imaging lens assembly and the reflecting mirror assembly can be quickly separated for individual maintenance or replacement, the positioning pin ensures accurate installation of the LCD module and facilitates quick disassembly and assembly of the LCD module, the elastic buckle makes the disassembly and assembly of the heat-insulating polarizing glass simple and fast, and no additional tools are needed, and the maintenance efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the projection light machine convenient to disassemble and maintain.

[0013] Figure 2 It is a front view structural schematic view of the projection light machine convenient to disassemble and maintain.

[0014] Figure 3 It is a side view structural schematic view of the projection light machine convenient to disassemble and maintain.

[0015] Figure 4The utility model discloses a projection light machine's overhead structure schematic diagram convenient to disassemble and maintain.

[0016] In the drawing: 1, light machine main casing, 2, imaging field lens subassembly, 3, reflecting mirror subassembly, 4, LCD module, 5, illumination field lens, 6, heat insulation polarized glass, 7, detachable support, 8, positioning pin, 9, adjusting screw, 10, elastic buckle, 11, transparent protective plate, 12, heat dissipation fin. PREFERRED EMBODIMENT

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1-4The utility model provides a technical scheme: a projection light machine convenient to disassemble and maintain, including light machine main casing 1, light machine main casing 1 inside is equipped with imaging field lens subassembly 2, reflector subassembly 3, LCD module 4, illumination field lens 5 and heat insulation polarized glass 6, imaging field lens subassembly 2 is connected with reflector subassembly 3 through detachable support 7, and is located the upper portion of light machine main casing 1, and LCD module 4 is set in imaging field lens subassembly 2 below, and is fixed with light machine main casing 1 through positioning pin 8, and illumination field lens 5 and heat insulation polarized glass 6 are installed at the bottom of LCD module 4 respectively, and illumination field lens 5 is connected with light machine main casing 1 through guide rail, and heat insulation polarized glass 6 is connected with light machine main casing 1 through elastic buckle 10, this structure when light machine works, illumination field lens 5 is stably installed in light machine main casing 1 through guide rail, ensures that light accurately projects on LCD module 4, and the image information after the modulation of LCD module 4 is captured and enlargies by imaging field lens subassembly 2, then projects after the angle of reflector subassembly 3 is accurately adjusted, in the whole process, heat insulation polarized glass 6 effectively protects LCD module 4 from the influence of overheating, and can be quickly disassembled for maintenance or replacement through the design of elastic buckle 10, and positioning pin 8 ensures the accurate positioning of LCD module 4, avoids the picture distortion problem caused by position deviation, as a whole, this design greatly simplifies the maintenance process, reduces maintenance cost and difficulty, reduces the risk of damage to other components during maintenance, solves the problem of inconvenient maintenance due to the integral structure in the prior art, improves the overall reliability and maintenance efficiency of the equipment, detachable support 7 is composed of two symmetrical L-shaped metal sheets, a plurality of threaded holes are formed in each metal sheet, one end of the L-shaped metal sheet of detachable support 7 is tightly attached to the bottom edge of imaging field lens subassembly 2, and the other end is fixed to the inner side wall of light machine main casing 1, this structure can stably connect imaging field lens subassembly 2 and light machine main casing 1 through the threaded holes on the L-shaped metal sheet, ensures that imaging field lens subassembly 2 does not displace or loosen during the working process, thereby ensuring the definition and stability of the projected image, at the same time, this design allows technicians to quickly disassemble imaging field lens subassembly 2 for individual maintenance or replacement by only unscrewing a few screws, without the need to remove other components, greatly simplifies the maintenance process and reduces the maintenance time, positioning pin 8 is in the form of a cylinder, one end of the positioning pin is embedded in a preformed hole in the back of LCD module 4, and the other end is inserted into a hole in the corresponding position of light machine main casing 1, this structure ensures that LCD module 4 can be accurately and stably fixed at its designed position during use, avoiding picture distortion or focusing problems caused by position deviation, that is, positioning pin 8 not only provides mechanical support, but also ensures the accurate alignment between LCD module 4 and other optical components such as imaging field lens subassembly 2 and reflector subassembly 3, thereby achieving high-quality image projection effect, elastic buckle 10 is arranged around heat insulation polarized glass 6, and the main part of elastic buckle 10 is embedded in a reserved groove on light machine main casing 1, and the exposed part of the main part covers the edge of heat insulation polarized glass 6,And the outer edge of the heat insulation polarized glass 6 is wrapped with a layer of silica gel protective sleeve, this structure of heat insulation polarized glass 6 can be stably installed in the optical machine main shell 1 through the elastic buckle 10, at the same time, it avoids the position deviation caused by vibration or collision, therefore, the design of the elastic buckle 10 not only provides the function of quick disassembly and assembly, so that the heat insulation polarized glass 6 can be easily maintained or replaced, but also through the close cooperation with the reserved groove of the optical machine main shell 1, it ensures the stability and safety of the heat insulation polarized glass 6 in the whole working process, the imaging field lens assembly 2 contains a convex lens and a concave lens, which are connected through the adjusting screw 9, the adjusting screw 9 passes through the convex lens frame and is fixed on the concave lens frame, this structure can accurately adjust the relative position between the convex lens and the concave lens through fine adjustment of the adjusting screw 9, so as to optimize the focusing effect of the light path and ensure the definition and sharpness of the projection image, which allows the technician to flexibly adjust the distance between the two lenses according to the actual needs, so as to compensate for the influence of manufacturing errors or environmental changes on the optical performance, and ensure the stable performance of the equipment under different working conditions, the LCD module 4 is installed with a transparent protective plate 11 on the front surface, and the transparent protective plate 11 is fixed on the front surface of the LCD module 4 through magnetic attraction, and the optical machine main shell 1 is provided with a plurality of heat dissipation fins 12 at the bottom and aligned with the air vents at the bottom of the optical machine main shell 1, this structure of transparent protective plate 11 can effectively protect the LCD module 4 from dust, stains and other possible physical damage from the outside, at the same time, since it is fixed by magnetic attraction, it is convenient for quick disassembly and cleaning and maintenance, and the operation can be completed without using tools, in addition, the heat dissipation fins 12 ensure good air circulation, which can efficiently dissipate the heat generated during the working process of the LCD module 4, avoiding the performance decline or damage caused by overheating.

[0019] Working principle: when using the projection light machine convenient to disassemble and maintain, first of all, adjust the screw 9 to fine-tune the relative position between the convex lens and the concave lens in the imaging lens assembly 2, ensure the initial calibration of the optical system, then, the illumination lens 5 is stably installed in the main shell 1 of the light machine through the guide rail, and the light generated by the light source is accurately projected onto the LCD module 4, the LCD module 4 receives and modulates the image information in the process, and due to the precise fixing effect of the positioning pin 8, the image information modulated by the LCD module 4 is captured and enlarged by the imaging lens assembly 2, then the mirror assembly 3 adjusts the angle according to the need, and the enlarged image is accurately projected out, in this process, the heat insulation polarized glass 6 effectively protects the LCD module 4 from overheating, at the same time, the design of the elastic buckle 10 enables the heat insulation polarized glass 6 to be quickly disassembled and maintained or replaced, and the transparent protective plate 11 is fixed in front of the LCD module 4 by magnetic attraction, providing additional physical protection, when the equipment is running, the bottom heat dissipation fin 12 is aligned with the air vent, ensuring good air circulation, effectively dissipating the heat generated by the LCD module 4 during operation, the whole system connects the imaging lens assembly 2 and the mirror assembly 3 through the detachable bracket 7 and stably installs them on the upper part of the main shell 1 of the light machine, ensuring the stability and safety of the overall structure, thereby completing a series of work.

[0020] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A projection optical engine that is easy to disassemble and repair, comprising a main housing (1) of the optical engine, characterized in that: The light machine main shell (1) is internally provided with an imaging lens assembly (2), a mirror assembly (3), an LCD module (4), an illumination lens (5) and a heat insulation polarized glass (6), the imaging lens assembly (2) and the mirror assembly (3) are connected through a detachable support (7) and are located at the upper part of the light machine main shell (1), the LCD module (4) is arranged below the imaging lens assembly (2) and is fixed with the light machine main shell (1) through a positioning pin (8), the illumination lens (5) and the heat insulation polarized glass (6) are respectively installed at the bottom of the LCD module (4), and the illumination lens (5) is connected with the light machine main shell (1) through a guide rail, and the heat insulation polarized glass (6) is connected with the light machine main shell (1) through an elastic buckle (10).

2. The projector according to claim 1, wherein: The detachable support (7) is composed of two symmetrical L-shaped metal sheets, a plurality of threaded holes are arranged on each metal sheet, one end of the L-shaped metal sheet of the detachable support (7) is tightly fitted with the bottom edge of the imaging lens assembly (2), and the other end is fixed to the inner side wall of the light machine main shell (1).

3. The projector according to claim 1, wherein: The positioning pin (8) is in a cylindrical structure, one end is embedded in a pre-set hole in the back of the LCD module (4), and the other end is inserted into a hole in the corresponding position of the light machine main shell (1).

4. The projector according to claim 1, wherein: The elastic buckle (10) is arranged around the heat insulation polarized glass (6), the main body part of the elastic buckle (10) is embedded in the reserved groove on the light machine main shell (1), the exposed part of the elastic buckle (10) covers the edge of the heat insulation polarized glass (6), and the outer edge of the heat insulation polarized glass (6) is wrapped with a layer of silica gel protective sleeve.

5. The projector according to claim 1, wherein: The imaging lens assembly (2) comprises a convex lens and a concave lens, and the two are connected through an adjusting screw (9), the adjusting screw (9) penetrates the convex lens frame and is fixed on the concave lens frame.

6. The projector according to claim 1, wherein: A transparent protective plate (11) is installed on the front of the LCD module (4), the transparent protective plate (11) is fixed on the front surface of the LCD module (4) through magnetic attraction, and a plurality of heat dissipation fins (12) are arranged on the bottom of the light machine main shell (1) and are aligned with the air vents on the bottom of the light machine main shell (1).

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