CN209861057U

CN209861057U - Core board of projector and projector

Info

Publication number: CN209861057U
Application number: CN201920960282.8U
Authority: CN
Inventors: 吴建雄
Original assignee: Shenzhen Luckystar Polytron Technologies Inc
Current assignee: Shenzhen Luckystar Polytron Technologies Inc
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2019-12-27
Anticipated expiration: 2029-06-21

Abstract

The utility model belongs to the technical field of the projection, a projecting apparatus nuclear core plate and projecting apparatus are provided. The projector core board comprises a PCB board and a main control module arranged on the PCB board, wherein the main control module comprises a programmable four-core processor integrated with an ARM framework; the memory module, the flash memory module, the signal conversion module and the audio processing module are arranged on the PCB and connected with the main control module through wires, and the external interface module is arranged on the first side edge of the PCB; the external interface module is configured to be connected with external equipment and perform signal exchange with the external equipment; the inner interface module is arranged at the second side edge of the PCB and is connected with the main control module through a wire; the inner interface module is configured to connect to an electronic device provided in the projector. The positions of the interfaces of different types are reasonably arranged, wiring of the core board and the projector is simplified, the design difficulty of the core board is reduced, the thickness of the core board is reduced, and the light and thin development of the projector is facilitated.

Description

Core board of projector and projector

Technical Field

The utility model belongs to the technical field of the projection, especially, relate to a nuclear core plate of projecting apparatus and projecting apparatus.

Background

With the continuous development and progress of science and technology, in recent years, various intelligent products are improved in the aspects of lightness, thinness and miniaturization, for example, a projector product which is widely popular in the market at present, a projector is also called a projector, is a device capable of projecting images or videos onto a curtain, can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals, and can be widely applied to families, offices, schools and entertainment places, and according to different working modes, the projectors are different in types such as CRT, LCD, DLP and the like.

Along with the development of intelligent projecting apparatus, increased more and more components and parts in the projecting apparatus and increased the intellectuality of projecting apparatus, strengthened the function of projecting apparatus, the core plate of projecting apparatus need dispose corresponding control simultaneously and constitute, and the trend miniaturized direction development of projecting apparatus more and more in the present stage, the size of corresponding projecting apparatus and core plate also can receive certain restriction, has just so increased the complexity and the design degree of difficulty of the core plate of projecting apparatus.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a core plate and projecting apparatus of projecting apparatus aims at solving the problem of the complexity of the core plate of projecting apparatus and the design degree of difficulty increase that exists in traditional projecting apparatus.

A core board of a projector, comprising a PCB board, the core board of the projector further comprising:

the main control module is arranged on the PCB and comprises a programmable four-core processor integrated with an ARM architecture;

a memory module, a flash memory module, a signal conversion module, an audio processing module and a control module arranged on the PCB board and connected with the main control module through wiring

The external interface module is arranged on the first side edge of the PCB; the external interface module is configured to be connected with external equipment and perform signal exchange with the external equipment;

the inner interface module is arranged on a second side edge of the PCB opposite to the first side edge and is connected with the main control module through a wire; the inner interface module is configured to connect to an electronic device provided in the projector.

IN one embodiment, the external interface module includes a USB interface, an earphone interface, an SPDIF-OUT interface, an HDMI interface, a LINE-IN interface, a TF interface, and a network interface, which are connected to the main control module via wires, and a Type-C interface, which is connected to the signal conversion module via wires.

In one embodiment, the internal interface module includes a VB interface, a keypad interface, a camera interface, an ultrasonic interface, a temperature sensing interface, a bluetooth interface, a motor interface, a power interface connected to a power supply of the driving board, and a speaker interface connected to the audio processing module.

In one embodiment, the master control module comprises an MSD6a838 chipset system.

In one embodiment, the memory module includes two DDR4 chips of 4GB memory, and the DDR4 chip is connected to the first data transmission port of the main control chip.

In one embodiment, the network interface comprises an RJ45 interface, and the RJ45 interface connects external network devices.

In one embodiment, the flash memory module includes a NAND-type flash memory chip, model KLMAG1JETD, for booting the system chip, initializing the PS reset key and configuring the PL reset key.

In one embodiment, the signal conversion module includes an audio format conversion chip with a model CH7211A, and is configured to convert a Type-C signal input by a Type-C interface into an HDMI signal.

In one embodiment, the audio processing module includes an AK7755 chip, and the audio processing module converts the audio signal output by the main control module into an analog signal and plays the analog signal through the speaker.

Further, there is provided a projector including: the shell and locate foretell projecting apparatus core plate in the shell.

Foretell core plate of projecting apparatus sets up in the first side of PCB board through the external interface module that will connect external equipment, will connect the electronic device who sets up in the projecting apparatus inner interface module set up in the first side of PCB board has rationally set up the position of the interface of different types, has simplified the wiring of core plate and projecting apparatus, has reduced the design degree of difficulty of core plate, has reduced the thickness of core plate and projecting apparatus, is favorable to the frivolous development of projecting apparatus.

Drawings

Fig. 1 is a schematic diagram of a circuit structure of a core board of a projector according to an embodiment of the present invention;

fig. 2 is a Layout schematic diagram of a PCB board of a core board of a projector according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in 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 invention and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a core board of a projector according to an embodiment of the present invention. As shown in fig. 1, the utility model provides a nuclear core plate of projecting apparatus, this nuclear core plate of projecting apparatus include PCB board 100, and the nuclear core plate of projecting apparatus still includes:

the main control module 10 is arranged on the PCB 100, and the main control module 10 comprises a programmable four-core processor integrated with an ARM architecture;

a memory module 20, a flash memory module 30, a signal conversion module 40, an audio processing module 50 and a signal line disposed on the PCB 100 and connected to the main control module 10 via a wire

An external interface module 60 disposed at a first side of the PCB 100; the external interface module 60 is configured to connect to an external device, and perform signal exchange with the external device;

an inner interface module 70 disposed at a second side of the PCB 100 opposite to the first side and connected to the main control module 10 through a trace; the inner interface module 70 is configured to connect an electronic device provided in the projector. Foretell core plate of projector sets up in PCB board 100's first side through the external interface module 60 that will connect external equipment, will connect the electronic device who sets up in the projector's internal interface module 70 set up in PCB board 100's second side has set up the position of the interface of different types rationally, has simplified the wiring of core plate and projector, has reduced the design degree of difficulty of core plate, has reduced the thickness of core plate and projector, is favorable to the frivolous development of projector.

In one embodiment, the main control module 10 includes a programmable quad-core processor integrated with an ARM architecture, the main control module 10 adopts an MSD6a838 chip system manufactured by MSTAR corporation, and the MSD6a638 chip system is a conteex a53 architecture of the ARM, has the advantages of high performance and low power consumption, and is an extensible system-on-chip developed for various different market demands such as smart phones and high-performance servers.

As shown IN fig. 2, IN one embodiment, the external interface module 60 includes a USB interface 61, an earphone interface 62, an SPDIF-OUT interface 63, an HDMI interface 64, a LINE-IN interface 65, a TF interface 66, and a network interface 67 connected to the main control module 10 via wires, and a Type-C interface 68 connected to the signal conversion module 40 via wires. The USB interface 61 is used for connecting USB devices such as a USB disk; the earphone interface 62 is used for connecting external audio equipment such as a sound box and an earphone; the SPDIF-OUT interface 63 is used for outputting digital audio signals and connecting digital audio equipment such as a digital sound box and the like; the HDMI interface 64 is used to connect a computer or other electronic equipment having the HDMI interface 64. In one embodiment, the network interface 65 includes an RJ45 interface and an RJ45 interface to connect to external network devices. Meanwhile, the interfaces of the external interface module 60 are disposed on the same side of the same plane of the PCB 100, so that the components of the PCB are more compactly distributed, and the interfaces can be effectively exposed outside the host.

In one embodiment, the memory module 20 includes two 4GB dynamic random access memory (DDR) chips, the model of the DDR chip is K4A4G165WE-BCRC, and the DDR chip is connected to the first data transmission port of the main control chip for data transmission. The DDR chips in the memory module 20 may be DDR4 memory particles, a 64-bit interface DDR chip is formed by two DDR4 memory particles, and the DDR4 memory particles with a 64-bit bandwidth are connected to the main control module 10 by a 64-bit bus. In one embodiment, flash module 30 includes a NAND type flash memory chip, model KLMAG1JETD, for booting the system chip, initializing the PS reset key and configuring the PL reset key.

As shown in fig. 2, in one embodiment, the internal interface module 70 includes a VB interface 71 connected to the main control module 10 through wires, a keypad interface 72, a camera interface 73, an ultrasonic interface 74, a temperature sensing interface 75, a bluetooth interface 76, a motor interface 77, a power interface 78 connected to a power supply of the driver board, and a speaker interface 79 connected to the audio processing module 50.

The VB interface 71 is connected between the main control module 10 and the signal processing board module, and is configured to transmit and output the VB signal output by the main control module 10 to the signal processing board, and the signal processing board is configured to process the VB signal output by the main control module 10 and output the processed VB signal to the optical module. The keypad interface 72 is connected to a plurality of keys of the projector, for example, a power-on key of the projector, and the main control module 10 controls the operation of the projector according to signals input by the keys. The camera interface 73, the ultrasonic interface 74 and the temperature sensing interface 75 are respectively connected to a camera, an ultrasonic module and a temperature sensor module in the projector.

In a preferred embodiment, the fan interface 76 includes a core board fan socket that may be used to externally connect a fan to dissipate heat from the core board.

In one embodiment, the signal conversion module 40 is connected to the Type-C interface, and is configured to convert a Type-C signal input by the Type-C interface into an HDMI signal, and output the HDMI signal to the main control chip. In this embodiment, the signal conversion module 40 adopts a USB Type-C audio/video format conversion chip manufactured by kuntai corporation (chrntel) and having a model number of CH7211A, conforms to the latest Type-C standard of the USB-IF association, supports a DisplayPort alternative Mode of USB Type-C, is suitable for various USB Type-C audio/video interface conversion devices and peripheral base audio/video conversion docks, and can support various portable terminal devices having USB Type-C interfaces.

In one embodiment, the audio processing module 50 is connected to the headphone interface 62, and is configured to process and convert the audio signal output by the main control module 10 into an analog signal, and output the analog signal to an external audio device through the headphone interface 62. In a preferred embodiment, the second surface of the core board of the projector is further provided with a speaker interface 78, the speaker interface 78 is connected to the audio processing module 50, and when no external audio device is connected to the headphone interface 62, the analog signal generated by the audio signal processing and conversion can be directly played through a speaker. The audio signal processing adopts a system chip with the model of AK 7755.

Further, there is provided a projector including: the shell and locate the above-mentioned projecting apparatus core plate in the shell.

The utility model provides a nuclear core plate of projecting apparatus includes the PCB board, and the nuclear core plate of projecting apparatus still includes: the main control module is arranged on the PCB and comprises a programmable four-core processor integrated with an ARM framework; the main control module is arranged on the PCB and is connected with the memory module, the flash memory module, the signal conversion module and the audio processing module through wires; the external interface module is configured to be connected with external equipment and perform signal exchange with the external equipment; the inner interface module is arranged at the second side edge of the PCB and is connected with the main control module through a wire; the inner interface module is configured to connect with an electronic device provided in the projector. Foretell core plate of projecting apparatus sets up in the first side of PCB board through the external interface module that will connect external equipment, will connect the electronic device who sets up in the projecting apparatus inner interface module set up in the second side of PCB board has set up the position of the interface of different types rationally, has simplified the wiring of core plate and projecting apparatus, has reduced the design degree of difficulty of core plate, has reduced the thickness of core plate and projecting apparatus, is favorable to the frivolous development of projecting apparatus.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a core plate of projecting apparatus, includes the PCB board, its characterized in that, core plate of projecting apparatus still includes:

2. The core board of claim 1, wherein the external interface module comprises a USB interface, an earphone interface, an SPDIF-OUT interface, an HDMI interface, a LINE-IN interface, a TF interface, and a network interface connected to the main control module via wires, and a Type-C interface connected to the signal conversion module via wires.

3. The projector core board as claimed in claim 1, wherein the internal interface module includes a VB interface, a keypad interface, a camera interface, an ultrasonic interface, a temperature sensing interface, a bluetooth interface, a motor interface, a power interface connected to a driving board power supply, and a speaker interface connected to the audio processing module, which are connected to the main control module through wires.

4. The projector core board as claimed in claim 1, wherein the master control module comprises an MSD6a838 chip system.

5. The projector core board as claimed in claim 1, wherein the memory module comprises two DDR4 chips with 4GB memory, and the DDR4 chip is connected to the first data transmission port of the main control module.

6. The projector core board as in claim 2 wherein the network interface comprises an RJ45 interface, the RJ45 interface connecting to an external network device.

7. The projector core board as in claim 1 wherein the flash memory modules comprise NAND type flash memory chips model KLMAG1JETD for booting a system chip, initializing a PS reset key and configuring a PL reset key.

8. The projector core board as claimed in claim 2, wherein the signal conversion module includes an audio format conversion chip of a model CH7211A for converting a Type-C signal inputted from the Type-C interface into an HDMI signal.

9. The projector core board as claimed in claim 3, wherein the audio processing module comprises an AK7755 chip, and the audio processing module converts the audio signal output by the main control module into an analog signal and plays the analog signal through the speaker.

10. A projector, characterized in that the projector comprises: a housing and the projector core as claimed in any one of claims 1 to 9 provided in the housing.