CN111314678A - Power supply system - Google Patents
Power supply system Download PDFInfo
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- CN111314678A CN111314678A CN201811519355.6A CN201811519355A CN111314678A CN 111314678 A CN111314678 A CN 111314678A CN 201811519355 A CN201811519355 A CN 201811519355A CN 111314678 A CN111314678 A CN 111314678A
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- voltage output
- power supply
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Projection Apparatus (AREA)
Abstract
The application discloses power supply system belongs to projection display technical field. The system comprises a power supply module and a plurality of projection light machines, wherein each projection light machine comprises a main board module and a light source module; the power supply module is connected with the main board module and the light source module of each projector; the power supply module is used for supplying power to each mainboard module and the light source module. The power supply system that this application embodiment provided can promote power supply system's security performance with power module and projection ray apparatus separation, and power module is through integrated design in addition, and integrated back whole power supply system only has a power module, and the reliability has also obtained very big promotion.
Description
Technical Field
The present application relates to the field of projection display technologies, and more particularly, to a power supply system.
Background
With the development of science and technology and economy, large-screen display systems are increasingly needed in the professional fields of virtual simulation, system control, scientific research, exhibition and display, industrial design, education and training, large conference centers and the like, and the existing spliced screen power supply system has the problems of high cost, low utilization efficiency, large system size and the like.
Disclosure of Invention
In view of the above, the present invention provides a power supply system to solve the above problems.
The embodiment of the application provides a power supply system. The system comprises: the projector comprises a power supply module and a plurality of projection light machines, wherein each projection light machine comprises a main board module and a light source module; the power supply module is connected with the main board module and the light source module of each projector; the power module is used for supplying power for the mainboard module and the light source module.
Compared with the prior art, the power supply system provided by the embodiment of the application realizes system power supply through the power module and the plurality of projection optical machines, and each projection optical machine comprises a main board module and a light source module; the power supply module is connected with the main board module and the light source module of each projector; the power module is used for supplying power for the mainboard module and the light source module. The power supply system that this application embodiment provided can reduce the volume of projection ray apparatus like this through adopting integrated design and projection ray apparatus separation with power module, can improve the security performance of product simultaneously greatly, and in addition, power module adopts the design of integrating to reduce the probability that traditional single power became invalid, improves the reliability of product greatly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 illustrates a schematic diagram of a power supply system provided by one embodiment of the present application;
FIG. 2 is a schematic diagram illustrating an overall layout of a power supply system according to an embodiment of the present application;
FIG. 3 is a block diagram of a power module and a projector light engine according to an embodiment of the present disclosure;
FIG. 4 illustrates a power supply schematic diagram of a power supply system provided by an embodiment of the present application;
FIG. 5 is a diagram illustrating a power-on logic of the power supply system according to an embodiment of the present application;
FIG. 6 shows a block diagram of a power module, a projector light engine, and a controller provided in one embodiment of the present application;
FIG. 7 illustrates a power supply schematic diagram of a power supply system provided by another embodiment of the present application;
FIG. 8 is a block diagram of a power module, a projector light engine, and a controller according to another embodiment of the present disclosure;
FIG. 9 illustrates a power supply schematic diagram of a power supply system provided by yet another embodiment of the present application;
FIG. 10 is a block diagram of a power module, a projector engine, a controller, and a heat sink according to an embodiment of the present disclosure;
FIG. 11 illustrates a power supply schematic diagram of a power supply system provided by yet another embodiment of the present application;
fig. 12 is a block diagram of a power module, a projector engine, a controller, and a heat sink according to another embodiment of the present disclosure;
FIG. 13 illustrates a power supply schematic diagram of a power supply system provided by yet another embodiment of the present application;
fig. 14 shows a block diagram of a power module, a projector engine, a controller and a heat sink according to yet another embodiment of the present application;
fig. 15 shows a power supply diagram of a power supply system according to still another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "central", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the present invention, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The DLP spliced screen is a mode of splicing DLP display units, and a large-screen display effect is realized through a large-screen splicing software system. And the DLP display unit in the present DLP tiled screen system is supplied power by the independent power module of every DLP display unit place oneself, consequently, will constitute by the DLP display unit to the independent power module of individual oneself in one set of DLP tiled screen system, and one set of DLP tiled screen system will have a plurality of power modules from this. The power module of the existing power supply system is integrated with the projection light machine, when the electrical isolation fails, a human body contacts the product shell to cause damage to the human body, and the volume of the product is relatively increased due to the electrical isolation, so that certain limitation is brought to the installation environment. In addition, in the conventional power supply system, when a plurality of power supplies work cooperatively, the corresponding number of power supplies need to work together, so that the overall utilization rate is not high, and the resource waste is caused. A power module is marked and matched with a single projector in the traditional splicing technology, when multiple projectors are spliced, the corresponding power modules have corresponding quantity, the reliability of the spliced integral power supply is jointly formed by each separated power supply, failure factors are increased, and product risk points are increased. Meanwhile, the power supply module and the projection light machine are integrated, a plurality of power supply modules work cooperatively, the number of the power supply modules is increased, some functions can be controlled in an integrated mode and are changed into a plurality of separated power supplies to be completed together, and the relative cost is increased.
Therefore, in order to overcome the above-mentioned drawbacks, the present application provides a power supply system 10 as shown in fig. 1, where the power supply system 10 may include a power module 100 and a plurality of projection units, each projection unit includes a projector 200, and the power module 100 is respectively connected to each projector 200 for supplying power to each projector 200. As an embodiment, the light engine 200 and the power module 100 are separated, as shown in fig. 2, the light engine 200 and the power module 100 can be connected by a wire 300, and the power module 100 supplies power to the light engine 200 through the wire 300.
Therefore, in the embodiment, the power module 100 is separated from the projection optical engine 200 by an integrated design, and compared with the prior art, the power module 100 and the projection optical engine 200 are integrated together, when the electrical isolation fails, the high voltage part of the power module 100 may cause damage to the human body, the power module 100 in the embodiment of the present application is a power integrated module, the output voltage of the power module 100 to the projection optical engine 200 does not exceed 42.4V ac peak value or 60V dc value, that is, the projection optical engine 200 meets the requirement of the class III device in the national standard, therefore, the human body in the embodiment of the present application may directly contact the projection optical engine 200 without causing damage. In addition, in the prior art, when carrying out the screen concatenation, every projector all needs 220V's voltage power supply, lead to high voltage power supply to be covered with whole screen region, may cause a lot of hidden dangers, and the projector is bulky, be unfavorable for narrow and small space's installation, and the power of this application has adopted integrated design, power integration in each concatenation power is on the independent power module 100 that a power is enough big, only need place projection ray apparatus 200 in every projection unit can, these projection ray apparatus 200 are supplied power by the power module 100 after the integration is unified, supply voltage does not exceed 60V when supplying power to these projection ray apparatus 200, all be safe voltage, namely the voltage of whole power supply system 10 adds up and can not exceed high-pressure 220V. The design of this embodiment can promote the security performance of system greatly, and in addition, projection ray apparatus 200 need not carry out high voltage with power module 100 and keeps apart and make the entire system volume reduce, and the power integration back, entire system only has a power module 100, and the reliability also promotes greatly.
Referring to fig. 1, the power module 100 is externally connected with 220V ac power, and can convert the 220V ac power into a power supply signal required by the projection light engine 200 in each projection unit, specifically, referring to fig. 3, taking the power module 100 as an example to supply power to one projection light engine 200, the projection light engine 200 includes a motherboard module 201, a light source module 202, an imaging module 203, and a first voltage output port 204.
The motherboard module 201 is connected to the power module 100 through the constant voltage output port 102 to obtain power, in this embodiment, both the motherboard module 201 and the controller may be connected to the constant voltage output port 102, and the connections between these devices may be in parallel, so there is no limitation on the number of the constant voltage output ports 102, for example, one constant voltage output port 102 may be connected to one motherboard module 201 and one controller at the same time. The motherboard module 201 and the controller can be connected to a constant voltage output port 102 at the same time, and the motherboard module 201 and the controller are in a parallel relationship, that is, one constant voltage output port 102 can supply power to one motherboard module 201 and one controller at the same time.
The power module 100 provides the motherboard module 201 with a constant voltage signal having a voltage value generally ranging from 28V to 45V.
The light source module 202 is used for providing a light source and adjusting light emitted by the light source to irradiate the imaging module 203. The light source module 202 may be composed of a light source, a lens, a prism, a mirror, a light guide rod, a light shielding sheet, and a support structure. The light source module 202 is connected to the power supply module 100 through the constant current output port 103 to obtain a power supply, the power supply module 100 provides the light source module 202 with a constant current signal, and the voltage value of the constant current information number is generally 12V. The light source module 202 can be used to provide a light source for the whole power supply system 10, the commonly used light sources include a bulb light source, an LED light source and a laser light source, the bulb light source is mainly a metal halogen lamp, a UHE lamp and a UHP lamp, the metal halogen lamp has a low cost, a life of 1000 to 2000 hours is different, the metal halogen lamp is relatively short, and the light source can be attenuated after long-term use; the UHE lamp and the UHP lamp belong to an ultra-high pressure mercury lamp, have high brightness, low attenuation and stable performance, and the difference between the UHE lamp and the UHP lamp is that the UHE lamp has moderate cost and service life, is mainly used for middle and low grade projectors, and has higher UHP cost, higher brightness and longer service life. The LED light source is an energy-saving and environment-friendly light source, and compared with a bulb light source, the LED light source is good in stability, long in service life, high in color saturation and the like. The laser light source is a novel light source, and mainly utilizes the photoelectric effect to enable excited particles to emit light under the action of laser radiation, the contrast, saturation and expressive force of the laser light source are far higher than those of a bulb light source, but the biggest defect of the laser light source is that the cost is too high, and the specific light source used by the light source module 100 is not definitely limited so that a user can select the light source according to the requirement.
The voltage of the projector 200 in this embodiment meets the national standard GB4943 standard for very low voltage safety, which states: in a circuit or in several interconnected safety extra-low voltage circuits, the voltage between any two conductors and between any two conductors must not exceed 42.4 vdc peak or 60 vdc under normal operating conditions and single fault conditions. Therefore, the voltage of the projection light 200 in this embodiment meets the requirements of class III devices in the national standard. In addition, the class III device does not require a safe ground when installed, and thus the installation cost of the projector engine 200 can be reduced to a great extent.
The imaging module 203 is used for projecting and focusing the light emitted by the light source module 202 onto a screen for imaging, and the imaging module 203 may be composed of a lens, a light shielding assembly and a lens barrel, that is, it is mainly used for reflecting and imaging a real object. The imaging module 203 can be connected to the power module 100 to obtain power, that is, it can obtain power supply by being connected to the constant voltage output port 102, and in addition, the imaging module 203 can obtain images by being connected to the motherboard module 201, and images of the images are realized under the action of the light source module 202. In addition, the imaging module 203 may be disposed at the light exit of the light source module 202, and the light emitted from the light source module 202 is projected onto an imaging surface such as a light screen or a wall surface after being optically processed by the imaging module 203, such as zooming or amplifying.
Referring to fig. 3, the power module 100 includes a constant voltage output port 102, a constant current output port 103, a power input port 101, and a power conversion circuit 110, where the constant voltage output port 102 is connected to the motherboard module 201 and is used to supply power to the motherboard module 201, and the constant current output port 103 is connected to the light source module 202 and is used to supply power to the light source module 202. In this embodiment, the power input terminal 101, the constant voltage output port 102 and the constant current output port 103 are all connected to the power conversion circuit 110, the power input terminal 101 is used for being connected to an external power source, and the power conversion circuit 110 is used for converting the power input by the power input terminal 101 into the working voltage of the projection optical device 200. In one embodiment, the power conversion circuit 110 is a dc/dc power conversion module, and is configured to convert the dc power input from the power input terminal 101 into two parts of dc power, which are constant voltage 12V dc power and constant current 28V to 45V dc power. A constant voltage of 12V dc is used to provide operating power for the motherboard module 201, and a constant current of 28V to 45V dc is used to provide operating power for the light source module 202. Therefore, the power conversion circuit 110 mainly functions to convert the power input from the external power source into a constant voltage signal and a constant current signal, thereby conveniently supplying power to the projection light engine 200.
Specifically, as shown in fig. 4, the power conversion circuit 110 may include a transformer including a primary coil connected to the power input terminal 101 and a secondary coil including at least two terminals, wherein the at least two terminals include a first terminal and a second terminal,
the first connector is connected with an input end of the constant current circuit, the constant current circuit is provided with a plurality of constant current output ports 103, after the 220V alternating current input by the power input end 101 is subjected to voltage reduction by the transformer, the voltage subjected to voltage reduction is input into the constant current by the first connector, and after constant current processing by the constant current circuit, a constant current signal is obtained and then is input to the light source module 202 of each projection light machine 200 through each constant current output port 103. The constant current circuit may be a high-power constant current chip, the high-power constant current chip may include a voltage source, an integrated operational amplifier, a current sampling circuit, and a resistor, and is mainly used to convert ac input from the power input terminal 101 into a constant current and transmit the constant current to the projection light engine 200 through a connection terminal, where the connection terminal is used to combine constant current output and constant voltage output one by one, for example, combine the constant voltage output 1 in the constant voltage output and the constant current output 1 in the constant voltage output together to supply power to the projection light engine 200.
The second connector is connected with the input end of the constant voltage circuit, the constant voltage circuit is provided with a plurality of constant voltage output ports 102, after the 220V alternating current input by the power input end 101 is reduced by the transformer, the voltage after the voltage reduction is input into the constant voltage current by the second connector, after the constant voltage current is processed by the constant voltage circuit, a constant voltage signal is obtained, and then the constant voltage signal is input to the main board module 201 of each projection light machine 200 through each constant voltage output port. The constant voltage circuit can be a high-power constant voltage chip, the principle of the constant voltage chip is the same as that of the constant current chip, the difference is that the constant current chip outputs a constant current and the constant voltage chip outputs a constant voltage, and similarly, the constant voltage can be transmitted to the projection light machine 200 through the wiring terminal to supply power to the main board module 201.
The power module 100 may include a plurality of independent constant voltage outputs and a plurality of independent constant current outputs, and taking fig. 4 as an example, the power module 100 includes 9 independent constant voltage outputs and 9 constant current outputs, each group operates independently, and each group operates without affecting each other, so that when a certain group fails, other groups may not be affected, in other words, other groups may still operate normally when a certain group fails, and the constant voltage signal and the constant current signal may supply power to each unit at the same time.
Specifically, the constant current signal is output to the projection optical engine 200 through the constant current output port 103 of the power module 100, and the power conversion circuit 110 converts the input power into 9 constant voltage signals and 9 constant current signals, so that the power module 100 in this embodiment may include 9 constant voltage output ports 102 and 9 constant current output ports 103, these constant voltage output ports 102 and constant current output ports 103 may be installed in the power module 100 in a crossing manner, or all constant voltage output ports 102 may be installed together to install all constant current output ports 103 together, but since the main board module 201 of the projection optical engine 200 needs the constant voltage signal and the light source module 202 needs the constant current signal, each projection optical engine 200 needs the constant voltage signal and the constant current signal, and thus the constant voltage output port 102 and the constant current output port 103 may be installed in the power module 100 in a crossing manner.
According to fig. 4, the constant current signal can be divided into a constant current output 1, a constant current output 2, a constant current output 3, a constant current output 4, a constant current output 5, a constant current output 6, a constant current output 7, a constant current output 8, and a constant current output 9. The constant voltage signal may be divided into a constant voltage output 1, a constant voltage output 2, a constant voltage output 3, a constant voltage output 4, a constant voltage output 5, a constant voltage output 6, a constant voltage output 7, a constant voltage output 8, and a constant voltage output 9. In this embodiment, one unit includes a projector 200, the constant current output 1 is used to supply power to the light source module 202 of the unit 1, and the constant voltage output 1 is used to supply power to the main board module 201 of the unit 1; the constant current output 2 is used for supplying power to the light source module 202 of the unit 2, and the constant voltage output 2 is used for supplying power to the main board module 201 of the unit 2; the constant current output 3 is used for supplying power to the light source module 202 of the unit 3 and the constant voltage output 3 is used for supplying power to the main board module 201 of the unit 3; the constant current output 4 is used for supplying power to the light source module 202 of the unit 4 and the constant voltage output 4 is used for supplying power to the main board module 201 of the unit 4; the constant current output 5 is used for supplying power to the light source module 202 of the unit 5 and the constant voltage output 5 is used for supplying power to the main board module 201 of the unit 5; the constant current output 6 is used to power the light source module 202 of the unit 6 and the constant voltage output 6 is used to power the main board module 201 of the unit 6; the constant current output 7 is used for supplying power to the light source module 202 of the unit 7 and the constant voltage output 7 is used for supplying power to the main board module 201 of the unit 7; the constant current output 8 is used to supply power to the light source module 202 of the unit 8 and the constant voltage output 8 is used to supply power to the main board module 201 of the unit 8; the constant current output 9 is used to power the light source module 202 of the unit 9 and the constant voltage output 9 is used to power the motherboard module 201 of the unit 9.
It should be noted that, the above-mentioned constant current output 1, constant current output 2, constant current output 3, constant current output 4, constant current output 5, constant current output 6, constant current output 7, constant current output 8, constant current output 9 and constant voltage output 1, constant voltage output 2, constant voltage output 3, constant voltage output 4, constant voltage output 5, constant voltage output 6, constant voltage output 7, constant voltage output 8 and constant voltage output 9 correspond to the plurality of constant voltage output ports 102 and constant current output ports 103 of the power module 100 one to one, and how to correspond to each other is not described in detail here.
After the power conversion circuit 110 converts the power into the constant voltage signal and the constant current signal, the constant voltage signal is transmitted to the motherboard module 201 connected to the constant voltage output port 102 through each of the constant voltage output ports 102, and the constant current signal is transmitted to the light source module 202 connected to the constant current output port 103 through each of the constant current output ports 103.
Through the analysis, a power supply system startup logic diagram can be obtained, and as shown in fig. 5, the power supply system startup logic includes steps S501 to S504. As can be seen from fig. 5, when the power supply system works, the power supply needs to be started first, the power supply module 100 can supply power to other modules after the power supply is started, the power conversion circuit 110 of the power supply module 100 converts the input power into a constant voltage signal and a constant current signal after the power supply is started, and outputs the constant voltage signal and the constant current signal to the projection optical engine 200, the projection optical engine 200 is in a standby state before receiving the constant voltage signal and the constant current signal, and the projection optical engine 200 can be automatically turned on after receiving the constant voltage signal and the constant current signal and can be turned on by a switch, and when the projection optical engine 200 is started, the power supply system starts to operate normally. It should be noted that the power supply system does not have a timing requirement when being shut down, the power module 100 may be shut down after the projection light engine 200 is shut down, or the power module 100 may be directly shut down.
The power supply system comprises a power supply module, a projection light machine and a power supply system, wherein the power supply module is connected with the projection light machine, the projection light machine is connected with the power supply module, and the power supply module is connected with the projection light machine. In addition, the power supply module in the embodiment of the application adopts a power supply integration technology, and can control a plurality of projection optical machines in a centralized manner through power supply integration, so that the failure factor of a single projection optical machine is reduced, the risk points of splicing a plurality of projection optical machines together are reduced to a great extent, and the reliability of the whole power supply system can be improved. From the above description, it can be known that the power supply module may include a plurality of voltage output ports and a plurality of current output ports, where the output ports are used to provide electric energy for a plurality of projection optical machines, and this embodiment may complete a cooperative control of the entire power supply system under limited resources, thereby greatly improving the utilization rate of the power supply. To sum up, this application embodiment passes through power centralized control, separates power module and projection ray apparatus, can reduce the volume of projection ray apparatus to a certain extent, also can use this power supply system in limited space, consequently this application embodiment can promote power supply system installation environment's adaptability when improving module utilization.
Referring to fig. 6, in order to make the above system more complete and conveniently splice all the independent units together, the controller 400 is introduced in the present embodiment, the controller 400 is mainly used for processing image signals and completing the function of splicing multiple units, the controller 400 is also powered by 220V in the prior art, which also causes the problems of low safety, low power utilization rate, and resource waste, etc., the inventor considers that the main function of the controller 400 is signal processing, and generally only 12V power supply is needed, so the present embodiment can also omit 220V power supply in the controller 400. Similarly to fig. 3, in this embodiment, the power module 100 is also taken as an example to supply power to a projection light engine 200, the controller 400 is connected to the main board module 201, and the controller 400 is connected to the power module 100. As an implementation manner, the controller 400 includes a first data port, and similarly, the motherboard module 201 includes a second data port, and both the first data port and the second data port may be an I/O pin, and the first data port of the controller 400 is connected to the second data port of the motherboard module 201, so that the controller 400 and the motherboard module 201 transmit data, for example, the controller 400 sends a control instruction to the motherboard module 201, so that the motherboard module 201 executes an operation corresponding to the control instruction, for example, the controller 400 sends a brightness adjustment instruction to the motherboard module 201, so that the motherboard module 201 adjusts the brightness of the light source module according to the brightness adjustment instruction.
The controller 400 is connected to the power module 100, and the controller 400 can obtain the operating voltage from the power module 100, as an embodiment, the controller 400 includes a power port, the power module 100 includes a power output port, and the power output port of the power module is connected to the power port of the controller, so that the controller can obtain the operating voltage from the power module through the power port.
The controller 400 may include a second voltage output port 205 through which the controller 400 may provide power to other devices 205. The controller 400 is connected to both the motherboard module 201 and the power module 100, and the controller in fig. 6 is supplied with power by being connected to the constant voltage output port 102.
Specifically, as shown in fig. 7, the power supply system may include a plurality of controllers 400, each controller 400 may be connected to a control terminal of the motherboard module 201 of one unit, the power terminals of the plurality of controllers 400 are all connected to the power module 100, and as can be seen from fig. 7, one unit may include one controller 400, and the controllers 400 correspond to the units one to one and are respectively named as controller 1, controller 2, controller 3, controller 4, controller 5, controller 6, controller 7, controller 8, and controller 9.
The power module 100 may include a plurality of independent constant voltage outputs and a plurality of independent constant current outputs, and taking fig. 7 as an example, the power module 100 includes 9 independent constant voltage outputs and 9 independent constant current outputs, that is, the power module 100 includes a plurality of constant voltage output ports 102, which may be a constant voltage output port 1, a constant voltage output port 2, a constant voltage output port 3, a constant voltage output port 4, a constant voltage output port 5, a constant voltage output port 6, a constant voltage output port 7, a constant voltage output port 8, and a constant voltage output port 9. The controller 1 obtains power supply by being connected with the constant voltage output port 1, the controller 2 obtains power supply by being connected with the constant voltage output port 2, the controller 3 obtains power supply by being connected with the constant voltage output port 3, the controller 4 obtains power supply by being connected with the constant voltage output port 4, the controller 5 obtains power supply by being connected with the constant voltage output port 5, the controller 6 obtains power supply by being connected with the constant voltage output port 6, the controller 7 obtains power supply by being connected with the constant voltage output port 7, the controller 8 obtains power supply by being connected with the constant voltage output port 8, and the controller 9 obtains power supply by being connected with the constant voltage output port 9. In summary, the controller 400 can directly utilize the constant voltage output port 102 to obtain power from the power module 100.
Referring to fig. 8, the controller 400 may also obtain power supply by being connected to the first voltage output port 204, and it can be known from the above description that the projection light engine 200 may include the first voltage output port 204, that is, in this embodiment, the power module 100 may be connected to the controller 400 through the first voltage output port 204, and the first voltage output port 204 is used for supplying power to the controller 400, so that the controller 400 may also obtain power supply by being connected to the projection light engine 200. Specifically, as shown in fig. 9, the controller 1 may obtain power by connecting to the first voltage output port 204 of the unit 1, the controller 2 may obtain power by connecting to the first voltage output port 204 of the unit 2, the controller 3 may obtain power by connecting to the first voltage output port 204 of the unit 3, the controller 4 may obtain power by connecting to the first voltage output port 204 of the unit 4, the controller 5 may obtain power by connecting to the first voltage output port 204 of the unit 5, the controller 6 may obtain power by connecting to the first voltage output port 204 of the unit 6, the controller 7 may obtain power by connecting to the first voltage output port 204 of the unit 7, the controller 8 may obtain power by connecting to the first voltage output port 204 of the unit 8, and the controller 9 may obtain power by connecting to the first voltage output port 204 of the unit 9.
The controller 400 is connected with the constant voltage output port 102 or connected with the first voltage output port 204 to obtain a power supply, and the controller 400 performs division processing, fusion processing, splicing processing and the like on the image signal transmitted by the projection optical machine 200 after power supply, wherein the division processing mainly includes dividing the image transmitted by the projection optical machine 200 into equal parts, fusing the image information after the division by using the fusion processing, and then splicing the image after the fusion processing, that is, projecting the divided and fused images according to a set sequence to realize splicing.
The embodiment of the application enables the whole power supply system to be more complete by adding the controller, the controller can be used for processing image signals and connecting single independent units which are not interfered with each other, and therefore splicing work of the units is achieved. In addition, because the power supply of the controller in the embodiment of the present application is also obviously different from the prior art, the power supply of the controller in the embodiment of the present application generally only needs 12V, so that the utilization rate of the power supply can be improved to a great extent, the waste of the power supply is reduced, and the cost of the whole power supply system can be reduced.
In order to make the power supply system have the dustproof and beautiful effects, a back cover needs to be added to each unit box, but if the box is added, the heat dissipation of the power supply system will be affected, so in this embodiment, a heat dissipation device 500 is added to each unit, please refer to fig. 10, and the heat dissipation device 500 is connected to the power module 100 and is mainly used for dissipating heat of the projection light machine 200. The heat dissipation device 500 may be a heat dissipation fan or a plurality of heat dissipation fans, and if the heat dissipation device 500 is composed of a plurality of heat dissipation fans, the heat dissipation fans may be connected in series or in parallel, and particularly, whether the heat dissipation fans are connected in series or in parallel is not limited herein. The heat dissipation device 500 is used for blowing heat generated by the projector 200 to the surrounding air, thereby achieving the effect of cooling.
Specifically, as shown in fig. 11, the power supply system may include a plurality of heat dissipation devices 500, and each of the heat dissipation devices may be connected to one unit of the projector engine 200, and is configured to dissipate heat of the projector engine 200. As shown in fig. 11, a unit may include a heat sink 500, and the heat sinks 500 correspond to the units, i.e., the heat sink 1, the heat sink 2, the heat sink 3, the heat sink 4, the heat sink 5, the heat sink 6, the heat sink 7, the heat sink 8, and the heat sink 9.
The power module 100 may have multiple independent constant voltage outputs and multiple independent constant current outputs, and the specific number of the constant current outputs and the constant voltage outputs is not limited herein, and in this embodiment, 9 independent constant voltage outputs and 9 independent constant current outputs are taken as an example, as shown in fig. 11. The power module 100 includes a plurality of constant voltage output ports 102, which are a constant voltage output port 1, a constant voltage output port 2, a constant voltage output port 3, a constant voltage output port 4, a constant voltage output port 5, a constant voltage output port 6, a constant voltage output port 7, a constant voltage output port 8, and a constant voltage output port 9, respectively. The heat dissipation device 1 obtains power supply by being connected with the constant voltage output port 1, the heat dissipation device 2 obtains power supply by being connected with the constant voltage output port 2, the heat dissipation device 3 obtains power supply by being connected with the constant voltage output port 3, the heat dissipation device 4 obtains power supply by being connected with the constant voltage output port 4, the heat dissipation device 5 obtains power supply by being connected with the constant voltage output port 5, the heat dissipation device 6 obtains power supply by being connected with the constant voltage output port 6, the heat dissipation device 7 obtains power supply by being connected with the constant voltage output port 7, the heat dissipation device 8 obtains power supply by being connected with the constant voltage output port 8, and the heat dissipation device 9 obtains. In summary, the heat sink 500 can directly utilize the constant voltage output port 102 to obtain power from the power module 100.
Referring to fig. 12, the heat sink 500 may also obtain power by connecting with the unit of the projection light machine 200, and it can be known from the above description that the projection light machine 200 further includes the first voltage output port 204, that is, the power module 100 may be connected with the heat sink 500 through the first voltage output port 204, and the first voltage output port 204 is used for supplying power to the heat sink 500. Specifically, as shown in fig. 13, the heat dissipation device 1 can obtain power by being connected to the first voltage output port 204 of the unit 1, the heat dissipation device 2 can obtain power by being connected to the first voltage output port 204 of the unit 2, the heat dissipation device 3 can obtain power by being connected to the first voltage output port 204 of the unit 3, the heat dissipation device 4 can obtain power by being connected to the first voltage output port 204 of the unit 4, the heat dissipation device 5 can obtain power by being connected to the first voltage output port 204 of the unit 5, the heat dissipation device 6 can obtain power by being connected to the first voltage output port 204 of the unit 6, the heat dissipation device 7 can obtain power by being connected to the first voltage output port 204 of the unit 7, the heat dissipation device 8 can obtain power by being connected to the first voltage output port 204 of the unit 8, and the heat dissipation device 9 can obtain power by being connected to the first voltage output.
In addition, the heat sink 500 may also be connected to the controller 400 to obtain power, please refer to fig. 14. The power supply system comprises a plurality of controllers 400, wherein each controller 400 is connected with one mainboard module 201; the projection light engine 200 includes a first voltage output port 204, the power module 100 is connected to the controller 400 through the first voltage output port 204, and the first voltage output port 204 is used for supplying power to the controller 400; in addition, the controller 400 may include a second voltage output port 205, the second voltage output port 205 may be connected to the heat sink 500, and the second voltage output port 205 is used to supply power to the heat sink 500. Referring to fig. 15 in detail, the heat sink 1 may obtain power through connection with the second voltage output port 205 of the controller 1, the heat sink 2 may obtain power through connection with the second voltage output port 205 of the controller 2, the heat sink 3 may obtain power through connection with the second voltage output port 205 of the controller 3, the heat sink 4 may obtain power through connection with the second voltage output port 205 of the controller 4, the heat sink 5 may obtain power through connection with the second voltage output port 205 of the controller 5, the heat sink 6 may obtain power through connection with the second voltage output port 205 of the controller 6, the heat sink 7 may obtain power through connection with the second voltage output port 205 of the controller 7, the heat sink 8 may obtain power through connection with the second voltage output port 205 of the controller 8, and the heat sink 9 may obtain power through connection with the second voltage output port 205 of the controller 9.
It should be noted that, when the power supply system includes both the controller 400 and the heat sink 500, the heat sink 500 and the controller 400 may be connected to the constant voltage output port 102 to obtain power supply. The heat sink 500 may also be powered by connection to the second voltage output port 205 of the controller 400, while the controller 400 may be powered by connection to either the constant voltage output port 102 or the first voltage output port 204. In addition, the heat sink 500 can also be connected to the first voltage output port 204 of the projection light engine 200 to take power. In summary, it can be known that the two modules do not affect each other when the controller 400 and the heat dissipation device 500 obtain power, and the two modules can obtain power supply through parallel connection or series connection, and specifically obtain power supply in what manner, and there is no explicit limitation here.
The heat abstractor that this application embodiment provided can reduce the heat that power supply system produced to radiator fan's quantity is unrestricted, and the user can set up heat abstractor's quantity according to the demand of self, and is the same with the controller in addition, and heat abstractor in this application embodiment is 12V power supplies equally also, can improve the utilization ratio of power to a certain extent.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A power supply system is characterized by comprising a power supply module and a plurality of projection light machines, wherein each projection light machine comprises a main board module and a light source module; the power supply module is connected with the main board module and the light source module of each projector;
the power supply module is used for supplying power to each mainboard module and the light source module.
2. The system of claim 1, wherein the power module comprises a plurality of constant voltage output ports and a plurality of constant current output ports, each of the constant voltage output ports is connected to one of the motherboard modules, and each of the constant current output ports is connected to one of the light source modules.
3. The system according to claim 2, wherein the power module further comprises a power input terminal and a power conversion circuit, the power input terminal, the constant voltage output ports and the constant current output ports are all connected to the power conversion circuit, the power input terminal is used for being connected to an external power supply, the power conversion circuit is used for converting a voltage input by the external power supply into a constant voltage signal and a constant current signal, transmitting the constant voltage signal to the main board module connected to the constant voltage output ports through each of the constant voltage output ports, and transmitting the constant current signal to the light source module connected to the constant current output port through each of the constant current output ports.
4. The system of claim 1, wherein the power supply system further comprises a plurality of controllers, power terminals of each of the plurality of controllers being connected to the power module.
5. The system of claim 4, wherein said power module includes a plurality of constant voltage output ports, each of said constant voltage output ports being connected to one of said motherboard modules, and each of said controllers being connected to one of said constant voltage output ports.
6. The system of claim 4, wherein the projection light engine further comprises a first voltage output port, the power module is connected to the controller through the first voltage output port, and the first voltage output port is configured to supply power to the controller.
7. The system of claim 1, wherein the power supply system further comprises a plurality of heat sinks, each of the plurality of heat sinks being coupled to the power module, each of the plurality of heat sinks being configured to dissipate heat from one of the plurality of projection engines.
8. The system of claim 7, wherein said power module includes a plurality of constant voltage output ports, each of said constant voltage output ports being connected to one of said motherboard modules, and each of said heat sinks being connected to one of said constant voltage output ports.
9. The system of claim 7, wherein the projection light engine further comprises a first voltage output port, the power module is connected to the heat sink through the first voltage output port, and the first voltage output port is configured to supply power to the heat sink.
10. The system of claim 7, wherein the power supply system further comprises a plurality of controllers, each controller being connected to one of the motherboard modules;
the projection optical machine further comprises a first voltage output port, the power supply module is connected with the controller through the first voltage output port, and the first voltage output port is used for supplying power to the controller;
the controller comprises a second voltage output port, the second voltage output port is connected with the heat dissipation device, and the second voltage output port is used for supplying power to the heat dissipation device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519355.6A CN111314678A (en) | 2018-12-12 | 2018-12-12 | Power supply system |
| PCT/CN2019/119157 WO2020119399A1 (en) | 2018-12-12 | 2019-11-18 | Power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519355.6A CN111314678A (en) | 2018-12-12 | 2018-12-12 | Power supply system |
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| CN111314678A true CN111314678A (en) | 2020-06-19 |
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| CN201811519355.6A Pending CN111314678A (en) | 2018-12-12 | 2018-12-12 | Power supply system |
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| CN (1) | CN111314678A (en) |
| WO (1) | WO2020119399A1 (en) |
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| WO2020119399A1 (en) | 2020-06-18 |
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Application publication date: 20200619 |