WO2017088398A1

WO2017088398A1 - Projector

Info

Publication number: WO2017088398A1
Application number: PCT/CN2016/083261
Authority: WO
Inventors: 杨伟樑; 高志强; 王梓
Original assignee: 广景视睿科技（深圳）有限公司
Priority date: 2015-11-25
Filing date: 2016-05-25
Publication date: 2017-06-01
Also published as: CN105353576A

Abstract

A projector, comprising a DLP micro-projector (10), a heat sink (11) and a processor (14). The DLP micro-projector (10) comprises an LED light source, a DMD chip and a projecting lens set. The heat sink (11) is disposed between the light source and the projecting lens set, and the heat sink (11) is in contact with the light source, and used for dissipating heat generated by the light source. The processor (14) is connected to the DLP micro-projector (10) and the heat sink (11), respectively. Moreover, the projector is further provided with a detachable rechargeable battery (12), allowing a user to choose a rechargeable battery (12) or an external power source to power the projector.

Description

a projector

Technical field

The present invention relates to the field of projection processing technologies, and in particular, to a projector.

Background technique

With the continuous advancement and development of technology, various electronic consumer products such as mobile phones, notebook computers, digital cameras, tablets, projectors, etc. are becoming more and more integrated, becoming lighter, smaller and more portable. The micro projectors are compact, portable, miniaturized, entertaining and practical, making the projection technology more close to life and entertainment. It has the functions of business office, teaching, business trip, and TV replacement.

Although the size of the pico projector currently on the market has become very small compared to the conventional projector, the size of the micro projector currently on the market is too large and is not convenient to carry. In addition, most of the pico projectors on the market can project image data or file data in a multimedia device, but in the projection process of the pico projector, the power supply system of the pico projector needs to communicate with the outside through an external power adapter. Power connection, powered by external power supply. If the external power adapter is damaged, or the power cord is damaged, or there is no external AC power, the projector will be unusable, which will cause inconvenience to the user.

Therefore, there is an urgent need for a new type of projector.

Summary of the invention

The technical problem to be solved by the present invention is to provide a projector which is advantageous for miniaturization of the projector. In addition, the projector is provided with a detachable rechargeable battery, which is convenient for the user to select a rechargeable battery or an external power source to supply power to the projector.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a projector, including a DLP micro projector, including an LED light source, a DMD chip and a projection lens group, a heat dissipation device, and the heat dissipation unit. The light source is disposed between the light source and the projection lens, and the heat dissipation unit is in contact with the light source for dissipating heat from the light source; and the processor is connected to the DLP micro projector and the heat sink respectively.

The projector further includes a first housing, a second housing, a socket assembly, a rechargeable battery, and a plug assembly; the light source, the projection lens, the heat sink, and the processor are both fixed to the first housing, and both a socket assembly is attached; the socket assembly is fixed to the first housing; the rechargeable battery is disposed in the second housing, the plug assembly is fixed on the second housing, and the rechargeable battery and the plug The component is connected; the rechargeable battery supplies power to the DLP pico projector, the heat sink, and the processor when the plug assembly and the socket assembly are plugged in.

The first housing is further provided with a hook, and the second housing is provided with a buckle. When the plug assembly and the socket assembly are inserted, the hook is engaged with the buckle.

The heat dissipation device includes a heat sink and a fan, wherein the heat sink is provided with a vent hole; the vent hole is communicated with the heat dissipation hole, and the fan is disposed at the heat dissipation Hole or vent.

Wherein the heat sink comprises an annular draft tube, a coolant and a water pump; a flow tube is located between the light source and the projection lens, the flow guiding tube is in contact with the light source, wherein the guiding tube has thermal conductivity; the cooling liquid is located in the annular guiding tube, the annular guiding tube The two ends are respectively connected to a water pump for pushing the coolant to flow along the annular draft tube.

The projector further includes a power detecting device and a first indicator light; the power detecting device is respectively connected to the rechargeable battery and the indicator light, and the power detecting device is configured to detect a power of the rechargeable battery, and in the When the amount of charge of the rechargeable battery is lower than a predetermined value, the first indicator light is illuminated.

Wherein the projector further comprises a wireless charging device and a second indicator light;

The wireless charging device is respectively connected to the rechargeable battery and the second indicator light, and the wireless charging device charges the rechargeable battery, and the second indicator light is illuminated.

Wherein the projector further comprises a monitoring device;

The monitoring device is connected to the processor, the monitoring device is configured to collect the light intensity of the projected picture, and the processor adjusts the light intensity of the light source according to the monitoring result of the monitoring device.

Wherein, the volume ratio between the heat sink and the DLP pico projector is 1:3 to 1:4.

Wherein, the monitoring device is a CCD or CMOS camera lens with a shooting function.

The invention has the beneficial effects that the present invention combines the space between the light source and the projection lens to fully utilize the space of the projector, which is advantageous for miniaturization of the projector; and the projector configuration is detachable. The rechargeable battery allows the user to select a rechargeable battery or an external power supply to power the projector.

DRAWINGS

Figure 1 is a schematic illustration of an embodiment of a projector of the present invention;

2 is a schematic view showing the separation of the first housing and the second housing in the embodiment of the projector of the present invention;

3 is a schematic diagram showing the connection relationship of some components in the embodiment of the projector of the present invention;

4 is a flow chart of multiple projectors of multiple projectors of the present invention;

5 is a schematic diagram showing a projection effect of multiple projectors of multiple projectors of the present invention;

6 is a schematic view showing another projection effect of multiple projectors of multiple projectors of the present invention;

Fig. 7 is a schematic view showing another projection effect of multiple projectors of multiple projectors of the present invention.

detailed description

The invention will now be described in detail in conjunction with the drawings and embodiments.

Referring to FIGS. 1 to 3 , the projector includes a DLP pico projector 10 , a heat sink 11 , and a processor 14 .

The DLP pico projector 10 includes an LED light source, a DMD chip, and a projection lens group. The light source is used to provide light required for projection. In the embodiment, the light source is preferably an LED light source, and the LED light source has the advantages of energy saving, long life, and the like, and the LED light source is usually composed of red, green and blue light sources. The optical prisms are split and concentrated to generate the light energy required by the projector. The projection lens group is composed of a set of optical lenses, which has the characteristics of good telecentricity and small aberration. After the light passes through the projection lens group, the projection information is projected onto the projection surface to realize projection. The heat dissipation unit is disposed between the light source and the projection lens group, and the heat dissipation unit is in contact with the light source for dissipating heat from the light source. The processor 14 is connected to the DLP pico projector 10 and the heat sink 11 respectively.

During projection, the processor 14 is used to control the illumination of the light source, and the light source generates a large amount of heat when the light source emits light, and the heat source 11 dissipates the light source to prevent the temperature of the light source from being too high and burns the light source. Since the light source and the projection lens group have a certain distance, the heat sink 11 is disposed between the light source and the projection lens group, and the space of the projector is fully utilized, which is advantageous for miniaturization of the projector. In the present embodiment, it is preferable that the volume ratio between the heat sink 11 and the DLP pico projector 10 is 1:3 to 1:4.

Further, the projector further includes a first housing 18, a second housing 19, a socket assembly 20, a rechargeable battery 12, and a plug assembly 21. The DLP pico projector 10, the heat sink 11 and the processor 14 are both fixed to the first housing 18 and are each connected to the socket assembly 20. The socket assembly 20 is secured to the first housing 18. The rechargeable battery 12 is disposed in the second housing 19, the plug assembly 21 is fixed to the second housing 19, and the rechargeable battery 12 is coupled to the plug assembly 21. When the plug assembly 21 and the receptacle assembly 20 are plugged in, the rechargeable battery 12 supplies power to the DLP pico projector 10, the heat sink 11 and the processor 14. When the plug assembly 21 and the socket assembly 20 are separated, the rechargeable battery 12 stops supplying power to the DLP pico projector 10, the heat sink 11 and the processor 14. At this time, the DLP microprojection can be realized by the power cord connecting the socket assembly 20 and the external power source. The machine 10, the heat sink 11 and the processor 14 are powered. By providing a combination of the plug assembly 21 and the socket assembly 20, it is convenient for the user to select an external power source or the rechargeable battery 12 to supply power to the projector. Of course, only one embodiment of the DLP pico projector 10, the heat sink 11 and the processor 14 connected to the socket assembly 20 is described above, and is not intended to limit the DLP pico projector 10, the heat sink 11 and the processor 14 and the socket assembly. 20 connections only have a two-hole insertion method.

In order to insert the plug assembly 21 and the socket assembly 20, the first housing 18 and the second housing The first housing 18 is further provided with a hook (not shown), and the second housing 19 is provided with a buckle (not shown). When the plug assembly 21 and the socket assembly 20 are inserted, The hook is fastened to the buckle.

The heat sink 11 includes a heat sink (not shown) and a fan (not shown), wherein the heat sink vents (not shown). The first housing 18 is provided with a heat dissipation hole (not shown). The heat sink is in contact with the light source, and is used for removing heat from the light source, the vent hole is connected with the heat dissipation hole, and the fan is disposed at the heat dissipation hole or the vent hole, and the fan pushes heat out from the vent hole and the heat dissipation hole to enter the outside world, thereby realizing the light source Cooling. Of course, in other alternative embodiments, water cooling can also be used. The heat sink 11 includes an annular draft tube (not shown), a coolant (not shown), and a water pump (not shown). The annular draft tube is located between the DLP pico projectors 10, the draft tube is in contact with the light source, and the draft tube has thermal conductivity. The coolant is located in the annular draft tube, and the two ends of the annular draft tube are respectively connected with the water pump, and the water pump is used to push the coolant to flow along the annular draft tube. When the coolant flows along the draft tube, the heat of the light source enters from the draft tube and is taken away by the cooling liquid to achieve heat dissipation from the light source. It is worth noting that the annular draft tube is tubular, and the light of the light source can pass through the middle of the annular draft tube without affecting the light propagation of the light source. Of course, the heat sink 11 is not limited to the above-described manner, and may be natural wind convection, thermoelectric cooling, or the like.

The projector further includes a power detecting device 22, a first indicator light 23, a wireless charging device 24, and a second indicator light 25.

The electric quantity detecting device 22 is connected to the rechargeable battery 12 and the indicator light, respectively, and the electric quantity detecting device 22 is for charging the electric quantity of the battery 12, and when the electric quantity of the rechargeable battery 12 is lower than a predetermined value, the first indicator light 23 is turned on. When the first indicator light 23 is lit, it is convenient for the user to know the rechargeable battery. 12 is too low to charge the rechargeable battery 12 in time.

The wireless charging device 24 is connected to the rechargeable battery 12 and the second indicator light 25, respectively, and the wireless charging device 24 charges the rechargeable battery 12, and the second indicator light 25 lights up. It is very convenient to charge by the wireless charging device 24 to reduce the charging line. Of course, when the rechargeable battery 12 is fully charged and not fully charged, the second indicator light 25 can be illuminated in different colors to facilitate the user to know the status of the charging. In the present embodiment, preferably, the rechargeable battery 12 may be a nickel cadmium battery, a nickel hydride battery, a lithium ion battery, a lead storage battery, a lithium iron battery, or the like.

In order to facilitate control of the light intensity of the light source, the projector also includes a monitoring device 13. The monitoring device is coupled to the processor 14, the monitoring device is configured to acquire the light intensity of the projected image, and the processor 14 adjusts the light intensity of the light source according to the monitoring result of the monitoring device.

Of course, the projector can also include a USB interface 15 that can be coupled to an electronic device or storage medium for projecting content in the electronic device or storage medium. The electronic device here may be a common electronic product such as a mobile phone, a television, a computer or an ipad, and the storage medium may be a carrier having a data storage function such as a U disk, a mobile hard disk, an SD card, and an SM card. Alternatively, the projector includes an audio output port 16 that can be coupled to a player such as a headphone or an audio for projecting the output of sound in the content.

The projector of the invention is very suitable for multi-projection to realize different projection effects. The following describes the multi-projection as an example. As shown in FIG. 4, the multi-projection method includes:

Step S401: setting a plurality of projectors in advance, and connecting a plurality of projectors to the controller;

In different application scenarios, the user can position the projector as needed. Specifically:

As shown in Figure 5, please projector 1, projector 2... projector N are connected to the controller, and all projectors are in the same horizontal plane, their projection areas are seamlessly connected, can be connected into one piece Perform a complete continuous projection or project your own projection area.

As shown in Fig. 6, four projectors are connected to the controller to form a projection matrix. The direct projection areas of each projector can be seamlessly connected, and can be connected into one piece for a complete continuous projection. The projected area is projected by itself. Of course, the method of splicing projection is not limited to four, and it can be nine, sixteen, and the like.

As shown in Figure 7, four projectors are installed in front, rear, left, and right directions. All projectors are connected to the controller. Each projector directly projects the direct projection area, and the projection screen fills the entire room. , to form an augmented reality projection effect, the user can view the projection picture in any orientation, resulting in an immersive feeling.

Step 402: The controller receives location information from the projector, and sends the projection content to the corresponding projector according to the location information of the projector.

The controller sends the corresponding projection content according to the position information of the projector. For example, in the mosaic projection, the left projection screen is sent to the left projector, and the right projection screen is sent to the right projector.

Step 403: A plurality of projectors perform projection according to the respective received projection contents, and the generated projection images are combined to form a new projection drawing.

Of course, when the projector is performing projection, the projection can be monitored, and the projector can be adjusted according to the monitoring to ensure the consistency of the screens of the projectors. For example, different projection areas are inconsistent due to the brightness of the ambient light. Even if the projection conditions of the projector are the same, the effect of the projected picture may be contrasted. Specifically, the method includes:

Step S404: Each of the projectors is provided with a predetermined time interval to capture a screen of the projection area, obtain a monitoring screen, and upload a monitoring screen to the controller;

Step S405: the controller receives the monitoring screen, and compares the brightness of the monitoring screen is consistent, if they are consistent, then no processing, otherwise proceeds to step S406;

Step S406: According to the monitoring screen, send a brightness adjustment instruction to the projector to adjust the brightness of the projector to ensure the consistency of the projected picture.

Multiple projectors are connected to complete the projection, which can be a projection of the projected image, such as an interface in the game or a video image. The projector can also be used as a lighting system to project the illumination of the illumination. At the same time, the screen projected by each projector can be a picture that is not related to each other, or a whole projection picture formed by seamlessly connecting each other. The multi-connected application is flexible in use and can meet the projection needs of different users in different scenarios.

In the embodiment of the present invention, the heat dissipating device 11 is disposed between the DLP pico projectors 10, and the space of the projector is fully utilized to facilitate miniaturization of the projector. In addition, the projector is provided with a detachable rechargeable battery 12, which is convenient for the user to select. The rechargeable battery 12 or an external power source supplies power to the projector.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

A projector, comprising:

DLP pico projector, comprising LED light source, DMD chip and projection lens set;

a heat dissipating unit, the heat dispersing unit is disposed between the light source and the projection lens, and the heat dispersing unit is in contact with the light source for dissipating heat from the light source;

The processor is connected to the DLP pico projector and the heat sink respectively.
The projector according to claim 1, wherein

The projector further includes a first housing, a second housing, a socket assembly, a rechargeable battery, and a plug assembly;

The DLP pico projector, the heat sink and the processor are both fixed to the first housing and are connected to the socket assembly;

The socket assembly is fixed to the first housing;

The rechargeable battery is disposed in the second housing, the plug assembly is fixed on the second housing, and the rechargeable battery is connected to the plug assembly;

The rechargeable battery supplies power to the DLP pico projector, the heat sink, and the processor when the plug assembly and the socket assembly are plugged in.
The projector according to claim 2, wherein

The first housing is further provided with a hook, and the second housing is provided with a buckle, and the hook is engaged with the buckle when the plug assembly and the socket assembly are inserted.
The projector according to claim 2, wherein

The first housing is provided with a heat dissipation hole;

The heat dissipating device includes a heat sink and a fan, wherein the heat sink is provided with a ventilation hole;

The ventilation hole is in communication with the heat dissipation hole, and the fan is disposed at the heat dissipation hole or the ventilation hole.
The projector according to claim 2, wherein

The heat sink comprises an annular draft tube, a coolant and a water pump;

The annular flow guiding tube is located between the light source and the projection lens, and the guiding tube is in contact with the light source, wherein the guiding tube has thermal conductivity;

The coolant is located in the annular draft tube, and two ends of the annular draft tube are respectively connected to a water pump, and the water pump is used to push the coolant to flow along the annular draft tube.
The projector according to claim 2, wherein

The projector further includes a power detecting device and a first indicator light;

The electric quantity detecting device is respectively connected to the rechargeable battery and the indicator light, wherein the electric quantity detecting device is configured to detect the electric quantity of the rechargeable battery, and when the electric quantity of the rechargeable battery is lower than a predetermined value, the first indicator light is turned on Start.
The projector according to claim 2, wherein

The projector further includes a wireless charging device and a second indicator light;

The wireless charging device is respectively connected to the rechargeable battery and the second indicator light, and the wireless charging device charges the rechargeable battery, and the second indicator light is illuminated.
The projector according to claim 1, wherein

The projector further includes a monitoring device;

The monitoring device is connected to the processor, the monitoring device is configured to collect the light intensity of the projected picture, and the processor adjusts the light intensity of the light source according to the monitoring result of the monitoring device.
The projector according to claim 1, wherein

The volume ratio between the heat sink and the DLP pico projector is 1:3 to 1:4.
The projector according to claim 8, wherein:

The monitoring device is a CCD or CMOS camera lens with a shooting function.