CN215769317U - Projector - Google Patents

Abstract

The utility model relates to the technical field of projection equipment, in particular to a projector which comprises a main control circuit board, a projection device and a heat dissipation system, wherein the projection device is used for projecting images, images and the like to any projection plane, and the projection plane can be the surface of a curtain, a wall and the like and can be in signal connection with terminal equipment such as a computer, a television, an IPAD, a mobile phone and the like; the heat dissipation system is mainly used for dissipating heat of the main control circuit board and the projection device, so that the main control circuit board and the projection device are in a good working environment. The projection device and the heat dissipation system are electrically connected with the main control circuit board, the heat dissipation system and the projection device are arranged side by side, and the main control circuit board is superposed on the projection device and the heat dissipation system. Therefore, a supporting frame is not required to be additionally arranged, the structure is simple and compact, and the overall size of the projector is effectively reduced under the condition of meeting a good heat dissipation condition.

Description

Projector

Technical Field

The utility model belongs to the technical field of projection equipment, and particularly relates to a projector.

Background

The projector projects or reflects images or videos to a screen through a digital light processing technology or an LCD liquid crystal imaging technology, and corresponding images and video signals can be accessed through different signal sources, such as a computer, a mobile phone, an IPAD and other terminal devices, so that playing is realized. The projector is widely applied to places such as education, business, engineering, household and the like.

The general interior major part of projecting apparatus adopts upper and lower superpose mode, and this kind of mode needs to increase extra support frame and regards as the linking of inner structure, fixed, has increased the holistic volume of projecting apparatus to a great extent, and the structure also becomes complicated moreover.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a projector, which aims to solve the technical problems that in the prior art, the main internal parts of the projector are vertically overlapped, an additional support frame is required to be added for connecting and fixing the internal structure, the overall volume of the projector is greatly increased, and the structure is complicated.

In order to achieve the purpose, the utility model adopts the technical scheme that: the projector comprises a main control circuit board, a projection device and a heat dissipation system, wherein the heat dissipation system and the projection device are arranged side by side, the main control circuit board is superposed on the projection device and the heat dissipation system, the projection device and the heat dissipation system are electrically connected with the main control circuit board, and the heat dissipation system can supply the main control circuit board and the projection device to dissipate heat.

Furthermore, the projection device comprises an optical machine for generating three-color light beams, an integration module which is butted with the optical machine and used for receiving the three-color light beams and integrating the three-color light beams to form projection light beams carrying projection information, and a projection lens which is butted with the integration module and used for conducting the projection light beams, wherein the projection end of the projection lens faces to the front side, the integration module is positioned at the rear side of the projection lens, and the optical machine is positioned between the heat dissipation system and the integration module.

Furthermore, the heat dissipation system comprises a fan and a heat conduction assembly, the fan is provided with an air inlet and an air outlet which are arranged at intervals on the side portion of the fan, one end portion of the heat conduction assembly is connected with the optical machine, the other end portion of the heat conduction assembly is located at the air outlet of the fan and opposite to the air outlet, and the optical machine, the integration module and the main control circuit board are all located on one side of the air inlet.

Furthermore, the heat conducting assembly comprises a heat dissipation group, at least one heat conducting substrate and at least one heat conducting piece, wherein each heat conducting substrate is arranged on the periphery of the optical machine, one end of each heat conducting piece is fixed on one heat conducting substrate, the other end of each heat conducting piece is connected with the heat dissipation group, and the heat dissipation group is positioned at the air outlet.

Further, the projector further comprises a shell, the shell is provided with a containing cavity, a lens opening communicated with the containing cavity, a first ventilation opening and a second ventilation opening, the projection device, the heat dissipation system and the main control circuit board are arranged in the containing cavity, a projection lens of the projection device is inserted into the lens opening, the first ventilation opening is communicated with the air inlet, the second ventilation opening is communicated with the air outlet, and the end part of the heat conduction assembly is arranged between the air outlet and the second ventilation opening.

Further, the projector further comprises a loudspeaker, and the loudspeaker is electrically connected with the main control circuit board.

Furthermore, the projector further comprises a power supply pack, the power supply pack is electrically connected with the main control circuit board, and the heat dissipation system is located between the power supply pack and the projection device.

Further, projection arrangement still includes the camera that is used for catching the projection image on the projection plane and is used for detecting projection arrangement with the detection module of distance between the projection plane, the camera with detection module all with main control circuit board electricity is connected, and the two with projection lens's projection end is located the coplanar.

Further, the projector also comprises a protective sleeve, and the protective sleeve is wrapped on the upper side, the lower side, the front side and the rear side of the shell.

Further, the protective sleeve comprises a first sleeve body, a second sleeve body and a switching structure, the first sleeve body wraps the lower side and the front side of the outer shell, and the second sleeve body wraps the upper side and the rear side of the outer shell; the first sleeve body is connected to the lower side of the shell in a switching mode through the switching structure.

The projector provided by the utility model has the beneficial effects that: the projector comprises a main control circuit board, a projection device and a heat dissipation system, wherein the projection device is used for projecting images, images and the like to any projection plane, and the projection plane can be the surface of a curtain, a wall and the like and can be in signal connection with terminal equipment such as a computer, a television, an IPAD, a mobile phone and the like; the heat dissipation system is mainly used for dissipating heat of the main control circuit board and the projection device, so that the main control circuit board and the projection device are in a good working environment. The projection device and the heat dissipation system are electrically connected with the main control circuit board, the heat dissipation system and the projection device are arranged side by side, and the main control circuit board is superposed on the projection device and the heat dissipation system. Therefore, a supporting frame is not required to be additionally arranged, the structure is simple and compact, and the overall size of the projector is effectively reduced under the condition of meeting a good heat dissipation condition.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a perspective view of a projector provided by an embodiment of the present invention;

fig. 2 is an exploded perspective view of a projector according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or it can be indirectly fixed to or disposed on the other element through a third member. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element through a third component.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 2, an embodiment of the utility model provides a projector 1, including a main control circuit board 100, a projection apparatus 200, and a heat dissipation system 300, where the heat dissipation system 300 is disposed side by side with the projection apparatus 200, the main control circuit board 100 is stacked on both the projection apparatus 200 and the heat dissipation system 300, both the projection apparatus 200 and the heat dissipation system 300 are electrically connected to the main control circuit board 100, and the heat dissipation system 300 is used for dissipating heat of the main control circuit board 100 and the projection apparatus 200.

In this embodiment, the projector 1 includes a main control circuit board 100, a projection device 200 and a heat dissipation system 300, where the projection device 200 is used to project images, videos, and the like onto any projection plane, which may be a surface such as a curtain, a wall, and the like, and may establish signal connection with a terminal device such as a computer, a television, an IPAD, a mobile phone, and the like; the heat dissipation system 300 is mainly used for dissipating heat of the main control circuit board 100 and the projection apparatus 200, so that the main control circuit board 100 and the projection apparatus 200 are in a good working environment. The projection device 200 and the heat dissipation system 300 are electrically connected to the main control circuit board 100, the heat dissipation system 300 is arranged side by side with the projection device 200, and the main control circuit board 100 is stacked on both the projection device 200 and the heat dissipation system 300. Therefore, a supporting frame is not required to be additionally arranged, the structure is simple and compact, and the overall size of the projector 1 is effectively reduced under the condition of meeting good heat dissipation.

Referring to fig. 2, further, the projection apparatus 200 includes an optical engine (not labeled) for generating three-color light beams, an integration module 210 connected to the optical engine and configured to receive the three-color light beams and integrate the three-color light beams to form projection light beams carrying projection information, and a projection lens 220 connected to the integration module 210 and configured to transmit the projection light beams, a projection end of the projection lens 220 faces to the front side, the integration module 210 is located at the rear side of the projection lens 220, and the optical engine is located between the heat dissipation system 300 and the integration module 210.

In this embodiment, the three main components of the projection apparatus 200 are arranged in a flat manner, so that the projector 1 is more flat as a whole.

Referring to fig. 2, further, the heat dissipation system 300 includes a fan 310 and a heat conducting element 320, the fan 310 has an air inlet 301 and an air outlet 302 spaced apart from each other on a side portion thereof, one end of the heat conducting element 320 is connected to the optical engine, the other end is located at the air outlet 302 of the fan 310 and is opposite to the air outlet 302, and the optical engine, the integration module 210 and the main control circuit board 100 are located on one side of the air inlet 301.

In this embodiment, the main heat generating component includes an optical engine, an integration module 210 and a main control circuit board 100, and the main heat generating portion of the optical engine is a light source emitting different color lights. Specifically, the heat dissipation system 300 includes a fan 310 and a heat conducting element 320, one end of the heat conducting element 320 is connected to the light source of the optical engine, and the other end is located at the air outlet 302 of the fan 310 and opposite to the air outlet 302, so as to conduct heat generated by the light source out. The optical machine, the integration module 210 and the main control circuit board 100 are all located at one side of the air inlet 301, opposite to the air inlet 301. Like this, utilize heat conduction assembly 320 to derive the heat conduction that the light source during operation of ray apparatus produced, it forms the wind current in certain space to combine fan 310 again, with main control circuit board 100, the ray apparatus, the heat on integration module 210 and the heat conduction assembly 320 is whole to be taken away, improve main control circuit board 100, the radiating effect of integration module 210 and ray apparatus, need not to increase fan 310's power, the noise is little, the radiating effect is good, ensure that projector 1 normally works, the life of extension projector 1, improve the user experience nature to its use.

Referring to fig. 2, the heat conducting assembly 320 further includes a heat dissipating assembly 321, at least one heat conducting substrate (not labeled) and at least one heat conducting member 322, each heat conducting substrate is disposed around the optical machine, one end of each heat conducting member 322 is fixed on one heat conducting substrate, and the other end is connected to the heat dissipating assembly 321, and the heat dissipating assembly 321 is located at the air outlet 302.

In this embodiment, the heat conducting substrate is a copper substrate, and the material of the heat conducting substrate is not limited, so as to meet the heat conducting requirement. The heat conductivity of the light source of the optical machine is improved by utilizing the heat conducting substrate. One end of the heat conducting member 322 is welded on the heat conducting substrate, and the other end is connected with the heat dissipating set 321, so that heat on the heat conducting substrate is conducted to the heat dissipating set 321, the heat dissipating area of the light source of the light machine is effectively increased, and the heat dissipating rate of the light source is improved. The heat dissipating unit 321 is located at the air outlet 302 of the fan 310, and the heat on the heat dissipating unit 321 is quickly taken away by blowing, so as to further improve the heat dissipating efficiency of the light source, further improve the heat dissipating efficiency of the optical machine, and ensure the working stability of the optical machine.

Referring to fig. 2, further, the projector 1 further includes a housing 400, the housing 400 has a containing cavity 401, and a lens opening 402, a first ventilation opening (not marked in the figure) and a second ventilation opening 403 which are communicated with the containing cavity 401, the projection apparatus 200, the heat dissipation system 300 and the main control circuit board 100 are all disposed in the containing cavity 401, the projection lens 220 of the projection apparatus 200 is inserted into the lens opening 402, the first ventilation opening is communicated with the air inlet 301, the second ventilation opening 403 is communicated with the air outlet 302, and an end of the heat conducting component 320 is disposed between the air outlet 302 and the second ventilation opening 403. Thus, the heat dissipation system 300 establishes a good heat dissipation cycle relationship with the outside.

Referring to fig. 2, further, the projector 1 further includes a speaker 500, and the speaker 500 is electrically connected to the main control circuit board 100. Through setting up loudspeaker 500, richened projecting apparatus 1's functionality, promoted the user to the experience nature of its use.

Referring to fig. 2, further, the projector 1 further includes a power pack 600, the power pack 600 is electrically connected to the main control circuit board 100, and the heat dissipation system 300 is located between the power pack 600 and the projection apparatus 200. In this embodiment, the power supply pack 600 includes a plurality of batteries, supplies power to each power consumption unit, and is convenient for the projector 1 to operate independently without an external power supply, thereby improving the user experience of using the projector.

Referring to fig. 2, further, the projection apparatus 200 further includes a camera 230 for capturing a projection image on a projection plane and a detection module 240 for detecting a distance between the projection apparatus 200 and the projection plane, wherein the camera 230 and the detection module 240 are electrically connected to the main control circuit board 100, and both are located on the same plane with a projection end of the projection lens 220.

In the present embodiment, the main control circuit board 100 records reference data, that is, the projected image on the projection plane is clear and has a regular shape, and the detection module 240 is used to detect the distance between the current projection lens 220 and the projection plane and record the distance, that is, the reference data, according to the use requirement. When the position of the projector 1 changes, or the projection environment changes, the detection module 240 detects the distance between the current projection lens 220 and the projection plane, and forms detection data. The main control circuit board 100 calculates according to the reference data and the detection data and by combining a linear formula to obtain a focusing result, and controls the projection lens 220 to perform fast focusing again. The main control circuit board 100 acquires the projection image captured by the camera 230, analyzes whether the definition of the projection image reaches the definition of the projection image in the reference data, and controls the projection lens 220 to perform automatic calibration. Therefore, no matter the projector 1 moves to any position, the projection lens 220 can automatically focus, the projected image can quickly reach the expected definition, and the use requirement is met.

The projector 1 can perform not only auto-focusing but also keystone correction, i.e., the above-mentioned shape adjustment of the projected image. Specifically, the detection module 240 is used to detect the distance between the projection lens 220 and the current projection plane, the camera 230 is used to obtain the projection image projected onto the projection plane, and obtain the plane coordinates of a plurality of feature points in the projection image, and obtain the projection distance corresponding to each feature point according to the coordinates of each feature point and a preset image feature model, and then obtain the three-dimensional coordinates of each feature point according to the plane coordinates of each feature point and the projection distance corresponding to each feature point; the projection equipment is corrected according to the three-dimensional coordinates, so that the appearance of a projection image projected to a projection plane reaches a target state, complete intellectualization is achieved, and the overall quality of the projector 1 is improved.

The camera 230 and the detection module 240 are both located on the same plane as the projection end of the projection lens 220, which is helpful for improving the accuracy of the detection distance. The field of view of the camera 230 is larger than the projection range of the projector 1, which facilitates the camera 230 to capture a complete projection image.

Referring to fig. 1 and fig. 2, further, the projector 1 further includes a protective cover 700, and the protective cover 700 covers the upper side, the lower side, the front side, and the rear side of the housing 400 to protect the whole projector 1.

Referring to fig. 1 and fig. 2, further, the protective sheath 700 includes a first sheath body 710, a second sheath body 720 and a switching structure 730, the first sheath body 710 wraps the lower side and the front side of the outer shell 400, and the second sheath body 720 wraps the upper side and the rear side of the outer shell 400; the first sheath 710 is connected to the lower side of the housing 400 through a connecting structure 730.

In this embodiment, the adapter structure 730 includes a fixing plate 731, an adapter pin 732 and an adapter component (not shown in the figure), the fixing plate 731 is fixed on the first sheath 710 under the housing 400, the adapter component is disposed in the housing 400 and can be damped and rotated and adjusted in the housing 400, one end of the adapter pin 732 is fixedly connected to the fixing plate 731, and the other end is connected to the adapter component. When the projector 1 needs to be used, the fixing plate 731 drives the first sleeve 710 to rotate away from the housing 400, the rotation angle can be adjusted as required, and after the first sleeve rotates to a predetermined angle, the fixing plate 731 can be supported on the supporting surface to adjust the projection angle of the projection lens 220, which is convenient for use. When the projector 1 needs to be folded, the fixing plate 731 is turned to the housing 400 and attached to the lower side surface of the housing 400, and the first sleeve 710 is wrapped on the front side of the housing 400, so that the structure is simple and the use is convenient.

In the present embodiment, there are two or more transfer pins 732, and each transfer pin 732 has a C shape or a U shape.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The projector is characterized by comprising a master control circuit board, a projection device and a heat dissipation system, wherein the heat dissipation system and the projection device are arranged side by side, the master control circuit board is superposed on the projection device and the heat dissipation system, the projection device and the heat dissipation system are electrically connected with the master control circuit board, and the heat dissipation system can supply the master control circuit board and the projection device to dissipate heat.

2. The projector as claimed in claim 1, wherein the projection device includes an optical engine for generating three-color light beams, an integrating module connected to the optical engine for receiving the three-color light beams and integrating them to form a projection light beam carrying projection information, and a projection lens connected to the integrating module for transmitting the projection light beam, a projection end of the projection lens faces a front side, the integrating module is located at a rear side of the projection lens, and the optical engine is located between the heat dissipation system and the integrating module.

3. The projector as claimed in claim 2, wherein the heat dissipation system includes a fan and a heat conduction assembly, the fan has an air inlet and an air outlet at a side portion thereof, the heat conduction assembly has one end connected to the optical engine and the other end located at the air outlet of the fan and opposite to the air outlet, and the optical engine, the integration module and the main control circuit board are all located at one side of the air inlet.

4. The projector as claimed in claim 3, wherein the heat conducting assembly includes a heat dissipating assembly, at least one heat conducting substrate and at least one heat conducting member, each heat conducting substrate is disposed around the optical engine, one end of each heat conducting member is fixed to one heat conducting substrate, and the other end is connected to the heat dissipating assembly, and the heat dissipating assembly is located at the air outlet.

5. The projector as claimed in claim 3, wherein the projector further comprises a housing, the housing has a receiving cavity, and a lens opening, a first ventilation opening and a second ventilation opening which are communicated with the receiving cavity, the projection device, the heat dissipation system and the main control circuit board are all disposed in the receiving cavity, the projection lens of the projection device is inserted into the lens opening, the first ventilation opening is communicated with the air inlet, the second ventilation opening is communicated with the air outlet, and an end of the heat conduction assembly is disposed between the air outlet and the second ventilation opening.

6. The projector as claimed in any one of claims 1 to 5, further comprising a horn electrically connected to the main control circuit board.

7. The projector of any of claims 1 to 5 further comprising a power pack electrically connected to the master control circuit board, the heat dissipation system being located between the power pack and the projection device.

8. The projector as claimed in any one of claims 2 to 5, wherein the projection device further comprises a camera for capturing a projection image on a projection plane and a detection module for detecting a distance between the projection device and the projection plane, the camera and the detection module are both electrically connected to the main control circuit board and are located on the same plane as a projection end of the projection lens.

9. The projector of claim 5 further comprising a protective sleeve that wraps around the top, bottom, front, and back sides of the housing.

10. The projector as defined in claim 9 wherein the protective sleeve includes a first sleeve, a second sleeve and an adapting structure, the first sleeve wrapping a lower side and a front side of the housing, the second sleeve wrapping an upper side and a rear side of the housing; the first sleeve body is connected to the lower side of the shell in a switching mode through the switching structure.

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