CN219758645U

CN219758645U - Ultrashort burnt projector

Info

Publication number: CN219758645U
Application number: CN202320969341.4U
Authority: CN
Inventors: 陈禅豪
Original assignee: Formovie Chongqing Innovative Technology Co Ltd
Current assignee: Formovie Chongqing Innovative Technology Co Ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-09-26
Anticipated expiration: 2033-04-25

Abstract

The utility model discloses an ultra-short-focus projector, which comprises: the shell is provided with a light emitting hole arranged on the top surface and a light transmitting lens arranged in the light emitting hole; the lens assembly is arranged in the shell and provided with a projection hole, and the projection hole is arranged corresponding to the light outlet hole; and the sealing frame is arranged around the projection hole, one end of the sealing frame is connected with the lens assembly, and the other end of the sealing frame is abutted to the periphery of the light-transmitting lens. The technical scheme solves the problem of dust prevention of the lens of the existing ultra-short focal projector.

Description

Ultrashort burnt projector

Technical Field

The utility model relates to the technical field of projection equipment, in particular to an ultra-short-focus projector.

Background

The ultra-short-focus projector is an emerging projector type, and the main working principle is that the light is emitted through a bulb inside a machine body, and the light is refracted by a lens in front of the machine body, so that a required picture is projected.

The existing ultra-short-focus projection equipment generally comprises a shell and a lens arranged in the shell, along with the increase of the service time, the light-emitting position of the shell and the lens are easy to be stained with dust, a dust user on the shell can directly erase the shell, and the dust on the surface of the lens is difficult to remove due to the fact that the lens is arranged inside the shell, so that the projection quality and the user experience are affected.

Disclosure of Invention

The utility model mainly aims to provide an ultra-short-focus projector, which aims to solve the technical problem of dust prevention of the existing ultra-short-focus projector.

In order to achieve the above object, the present utility model provides an ultrashort-focal projector, comprising:

the shell is provided with a light emitting hole arranged on the top surface and a light transmitting lens arranged in the light emitting hole;

the lens assembly is arranged in the shell and provided with a projection hole, and the projection hole is arranged corresponding to the projection hole; and

the sealing frame is arranged around the projection hole, one end of the sealing frame is connected with the lens assembly, and the other end of the sealing frame is abutted to the periphery of the light-transmitting lens.

Optionally, the sealing frame includes:

the connecting body is connected with the lens assembly and is arranged around the projection hole; and

The first sealing body is arranged on one side of the connecting body, which faces the projection hole, in a protruding mode, and surrounds the projection hole, and the first sealing body is abutted to the periphery of the projection hole.

Optionally, the connecting body is provided with a second sealing body towards one side end face of the lens assembly, and the second sealing body surrounds the projection hole and abuts against the periphery of the projection hole.

Optionally, a decompression groove is formed in the end face of the connecting body, facing towards one side of the lens assembly, and the decompression groove is formed in the outer side, facing away from the projection hole, of the second sealing body.

Optionally, a plurality of limiting parts are convexly arranged on the periphery of the projection hole, a plurality of limiting grooves are formed in one side, facing the lens assembly, of the connecting body, and each limiting part is correspondingly matched with each limiting groove so as to position the sealing frame.

Optionally, the connector is fixedly connected with the lens assembly through screw connection, clamping connection or bonding.

Optionally, the sealing frame is made of soft material.

Optionally, the ultra-short focal projector further comprises a fixing frame, and the fixing frame is connected with the sealing frame and the lens component; wherein, the mount is hard material, the sealing frame is soft material.

Optionally, the fixing frame and the sealing frame are integrally formed.

Optionally, the ultra-short focal projector further comprises a sealing ring, wherein the sealing ring is arranged between the sealing frame and the shell; the elastic modulus of the sealing ring is smaller than that of the sealing frame, so that the sealing ring is compressed under the cooperation of the sealing frame and the shell.

Compared with the prior art, in the technical scheme of the utility model, the ultra-short-focus projector comprises a shell, wherein the shell is provided with a light outlet hole arranged on the top surface, the light outlet hole is used for allowing a projected image to pass through, a light-transmitting lens is covered at the light outlet hole so as to seal the projection hole, a lens assembly is arranged in the light outlet hole, the lens assembly is provided with a projection hole, the projection hole and the light outlet hole are correspondingly arranged, and a projection image generated in the lens assembly passes through the projection hole and then is projected to a target area through the light outlet hole, so that a projection function is realized. In addition, this ultrashort burnt projector still includes sealing frame, and this sealing frame encircles in the projection hole setting, and the one end of this sealing frame is connected in the camera lens subassembly, and the other end butt is in the periphery of printing opacity lens, through the setting of this sealing frame, can be in the isolated seal of external environment with the projection hole of this camera lens subassembly under the cooperation with casing and camera lens subassembly for outside dust can not enter into this region, thereby has realized the dustproof in projection hole, has guaranteed the projection effect, has promoted user experience.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of an ultra-short focal length projector according to the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic cross-sectional view of a lens assembly at a projection aperture in an embodiment of an ultra-short focal length projector according to the present utility model;

FIG. 4 is a schematic view of a seal frame in an embodiment of an ultra-short focal length projector according to the present utility model;

fig. 5 is a schematic diagram of another seal type structure of an embodiment of the ultra-short focal length projector according to the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Shell body	200	Lens assembly
300	Sealing frame	210	Limiting part
				310	Connector body	320	First sealing body
330	Decompression groove	340	Second sealing body

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The ultra-short-focus projector is a projection device capable of projecting a large screen in a short distance, and is favored by a wide range of consumers because of a wide range of applicable rooms. The existing ultra-short focal projector generally comprises a housing and a lens assembly, wherein the lens assembly is arranged inside the housing and is used for projecting a picture to the outside through the housing, however, as the service time increases, dust is more or less accumulated on the lens assembly, and at this time, the light projected by the lens assembly is shielded by the dust, so that the problem of blurring or spots exists in a final display picture, and the user experience is affected.

In order to solve the above technical problems, the present technical solution provides an ultrashort focal projector, including:

the casing 100 has a light exit hole on the top surface and a light transmitting lens on the light exit hole;

the lens assembly 200 is arranged in the shell 100 and provided with a projection hole, and the projection hole is arranged corresponding to the light outlet hole; and

the sealing frame 300 is arranged around the projection hole, one end of the sealing frame 300 is connected with the lens assembly 200, and the other end of the sealing frame 300 is abutted with the periphery of the light emitting hole.

Further, the sealing frame 300 is made of soft rubber or silica gel.

Compared with the prior art, in the technical scheme of the utility model, the ultra-short-focus projector comprises a shell 100, wherein the shell 100 is provided with a light outlet hole arranged on the top surface, the light outlet hole is used for allowing a projected image to pass through, a light-transmitting lens is covered at the projection hole to seal the projection hole, a lens assembly 200 is arranged in the shell 100, the lens assembly 200 is provided with a projection hole, the projection hole is arranged corresponding to the light outlet hole, and a projection image generated in the lens assembly 200 passes through the projection hole and then is projected to a target area through the light outlet hole, so that a projection function is realized. In addition, this ultrashort burnt projector still includes sealing frame 300, and this sealing frame 300 encircles in the projection hole setting, and the one end of this sealing frame 300 is connected in lens subassembly 200, and the other end butt is in the periphery of printing opacity lens, through the setting of this sealing frame 300, can be under the cooperation with casing 100 and lens subassembly 200 with the projection hole of this lens subassembly 200 be in the isolated seal of external environment for outside dust can not enter into this region, thereby has realized the dustproof in projection hole, has guaranteed the projection effect, has promoted user experience.

Specifically, as shown in fig. 1 to 5, the ultrashort-focus projector includes a housing 100, a light outlet hole is formed in the top of the housing 100, and is used for passing a projection image, a light-transmitting lens is attached to the light outlet hole, and the light-transmitting lens may be a sheet-like structure made of transparent materials such as glass, and is used for closing the opening on the premise of not affecting light passing. In addition, the housing 100 further has a cavity, in which the lens assembly 200 is disposed, the lens assembly 200 has a projection hole, the projection hole is used for emitting the projection light, and the position of the projection hole corresponds to the position of the light emitting hole, so that the light in the lens assembly 200 can be projected out after passing through the projection hole and the light transmitting lens in sequence. In addition, in order to realize dust seal, the ultrashort focus projector includes a sealing frame 300, the sealing frame 300 surrounds the projection hole, one end of the sealing frame 300 is connected with the lens assembly 200, the other end is abutted against the periphery of the transparent lens, in this embodiment, the sealing frame 300 is a square block structure, the projection hole is a square hole, a square hole matched with the projection hole is formed in the center of the sealing frame 300, the end face of the sealing frame 300 facing the lens assembly 200 can be adhered to the periphery of the projection hole, one side of the sealing frame 300 facing the light emitting hole is abutted against the periphery of the transparent lens, in this way, the sealing frame 300 is matched with the periphery of the projection hole and the periphery of the transparent lens, and isolates the projection hole from the external environment, thereby realizing the sealing and dust prevention of the projection hole. In addition, in the present embodiment, the sealing frame 300 may be made of soft materials such as silica gel or soft gel, and the silica gel and soft gel may be manufactured by hot press molding or injection molding, and may be manufactured into various complex shapes, so that the adaptation of the projection hole peripheral shape and the light-transmitting lens peripheral shape can be easily realized by using such materials, so as to improve the fitting degree of the sealing frame 300 and the lens assembly 200 and the housing 100, thereby being beneficial to improving the sealing effect and also being convenient for production and assembly.

Further, the sealing frame 300 includes:

the connector 310 is connected with the lens assembly 200 and is arranged around the projection hole; and

The first sealing body 320 is disposed at a side of the connecting body 310 facing the light emitting hole and surrounds the projection hole, and the first sealing body 320 abuts against the periphery of the light transmitting lens.

Specifically, as shown in fig. 3 and 4, in order to improve the sealing effect, in this embodiment, the sealing frame 300 includes a connector 310, the connector 310 is a directional sheet structure, the connector 310 is disposed around the projection hole and can be connected with the lens assembly 200 by bonding, etc., and an end surface of the connector 310 facing one side of the lens assembly 200 can be adapted to the surface shape of the lens assembly 200, so that the connector 310 can be attached to the surface of the lens assembly 200, which is beneficial to improving the sealing effect. In addition, the end face of the connecting body 310 facing the light emitting hole is provided with a first sealing body 320, the first sealing body 320 may be in an annular structure, the first sealing body 320 is disposed around the projection hole, after assembly, the first sealing body 320 will abut against the periphery of the light transmitting lens, the first sealing body 320 may be made of a soft material, the connecting body 310 and the housing 100 may be matched to clamp the first sealing body 320, and the first sealing body 320 is extruded and deformed, so as to form an interference fit at the joint of the sealing frame 300 and the housing 100, thereby ensuring the sealing effect, and at the same time, making up the gap between the sealing frame 300 and the housing 100 due to manufacturing or assembly tolerance.

Further, a second sealing body 340 is disposed on an end surface of the connecting body 310 facing the lens assembly 200, and the second sealing body 340 is disposed around the projection hole and abuts against the periphery of the projection hole. As shown in fig. 3 and 5, in order to further improve the dust-proof sealing effect, the sealing frame 300 further includes a second sealing body 340, where the second sealing body 340 is disposed on an end surface of the connecting body 310 facing the lens assembly and surrounds the projection hole, and the second sealing body 340 may be made of soft rubber or silica gel, so that the second sealing body 340 can abut against the periphery of the projection hole and can be fully compressed and deformed. By the design, the second sealing body 340 and the periphery of the projection hole form interference fit, gaps generated by manufacturing errors and assembly errors of all parts of the ultra-short-focus projector are eliminated, and sealing reliability is guaranteed.

Further, the end surface of the connecting body 310 facing to one side of the lens assembly 200 is provided with a decompression slot 330, and the decompression slot 330 is arranged at the outer side of the second sealing body 340 facing away from the projection hole. As shown in fig. 3 and 5, in order to eliminate the influence on the projection effect, the end face of the connecting body 310 facing the lens side is provided with a decompression slot 330, the decompression slot 330 is arranged on the outer side of the second sealing body 340 and surrounds the projection hole for a circle, and by arranging the decompression slot 330, the connecting body 310 can not press the periphery of the projection hole after the ultra-short focal projector is assembled, so that the deformation of the position of the projection hole is prevented, and the projection effect is ensured.

Further, a plurality of limiting portions 210 are convexly disposed at the periphery of the projection hole, and a plurality of limiting grooves are disposed on a side of the connector 310 facing the lens assembly 200, and each limiting portion 210 is correspondingly matched with each limiting groove to position the sealing frame 300. Specifically, as shown in fig. 2 and fig. 5, in order to facilitate assembly, in this embodiment, the periphery of the projection hole is further provided with a plurality of limiting portions 210 in a protruding manner, the limiting portions 210 may be in a cylindrical structure, and correspondingly, a limiting groove corresponding to the limiting portion 210 is formed on an end surface of the connecting body 310 facing the lens assembly 200, each limiting portion 210 may be correspondingly embedded in a limiting groove, and by matching between the limiting portion 210 and the limiting groove, the relative displacement between the sealing frame 300 and the lens assembly 200 may be limited, which is beneficial to improving the convenience of installation, and meanwhile, the relative stability of the position of the sealing frame 300 in the use process of the ultrashort focal projector is ensured, thereby ensuring the reliability of sealing.

Further, the connector 310 is screwed, clamped or bonded with the lens assembly 200. Specifically, for convenient assembly, the connector 310 is connected with the lens assembly 200 by a screw, and when the optical engine is shipped, the dust cover is often fixed at the projection hole of the lens assembly 200 by the screw, so as to prevent dust pollution in the transportation process, and when the whole machine is assembled, the dust cover needs to be removed, and the connector 310 of the sealing frame 300 is connected with the lens assembly 200 by the screw, so that the threaded hole on the lens assembly 200 can be reused, the design of the lens assembly 200 is simplified, and the convenience degree of the whole machine assembly is improved. In addition, it is conceivable that the connector 310 is connected with the lens assembly 200 by means of clamping or bonding, which also has the same effects of simple structural design and convenient assembly, and will not be described herein.

Further, the ultra-short focal projector further comprises a fixing frame, and the fixing frame is connected with the sealing frame 300 and the lens assembly 200; wherein the fixing frame is made of hard materials; wherein the fixing frame is integrally formed with the sealing frame 300. In order to improve the connection reliability of the sealing frame 300 and the lens assembly 200, the ultra-short focal length projector may further be provided with a fixing frame, the fixing frame may be made of a hard material such as plastic, the sealing frame 300 may be connected to the fixing frame by an integral molding or bonding manner, the fixing frame may be connected to the lens assembly 200 by a screw connection manner, and the fixing frame may be arranged to improve the connection reliability of the sealing frame 300 and the lens assembly 200.

Further, the ultra-short focal projector further comprises a sealing ring, and the sealing ring is arranged between the sealing frame 300 and the shell 100; wherein the elastic modulus of the sealing ring is smaller than that of the sealing frame 300 to compress the sealing ring in cooperation with the sealing frame 300 and the housing 100. In order to further improve the sealing effect, the ultra-short focus projector further comprises a sealing ring, wherein the sealing ring is arranged between the sealing frame 300 and the shell 100, the sealing ring is arranged around the projection hole, and the sealing ring is made of foam and other materials smaller than the elastic modulus of the sealing frame 300, so that the sealing frame 300 can be matched with the shell 100 to compress the sealing ring so that the bonding area between the sealing ring and the shell 100 and the bonding area between the sealing ring and the sealing frame 300 are increased, and the sealing reliability is improved.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. An ultra-short focal length projector, comprising:

the lens assembly is arranged in the shell and provided with a projection hole, and the projection hole is arranged corresponding to the light outlet hole; and

2. The ultra-short focal projector of claim 1 wherein the sealing frame comprises:

The first sealing body is arranged on one side of the connecting body, which faces the light emergent hole, in a protruding mode, and surrounds the projection hole, and the first sealing body is abutted to the periphery of the light-transmitting lens.

3. The ultra-short focus projector according to claim 2, wherein a second sealing body is provided on an end face of the connecting body facing the lens assembly, and the second sealing body is disposed around the projection hole and abuts against a periphery of the projection hole.

4. The ultra-short focus projector according to claim 3, wherein a decompression groove is formed in an end face of the connecting body facing the lens assembly, and the decompression groove is formed in an outer side of the second sealing body facing away from the projection hole.

5. The ultra-short focus projector according to claim 2, wherein a plurality of limiting portions are convexly arranged at the periphery of the projection hole, a plurality of limiting grooves are arranged on one side of the connecting body, facing the lens assembly, of the connecting body, and each limiting portion is correspondingly matched with each limiting groove so as to position the sealing frame.

6. The ultra-short focal projector of claim 2 wherein the connector is fixedly connected to the lens assembly by a screw, snap or adhesive connection.

7. The ultra-short focal length projector of claim 1 wherein the sealing frame is a soft material.

8. The ultra-short focal projector of claim 7 further comprising a mount connecting the sealing frame with the lens assembly; wherein, the mount is hard material, the sealing frame is soft material.

9. The ultra-short focal projector of claim 8 wherein the mount is integrally formed with the sealing frame.

10. The ultra-short focal projector of claim 1 further comprising a seal ring disposed between the seal frame and the housing; the elastic modulus of the sealing ring is smaller than that of the sealing frame, so that the sealing ring is compressed under the cooperation of the sealing frame and the shell.