CN211557397U - Projection circuit board with composite video interface - Google Patents
Projection circuit board with composite video interface Download PDFInfo
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- CN211557397U CN211557397U CN202020443719.3U CN202020443719U CN211557397U CN 211557397 U CN211557397 U CN 211557397U CN 202020443719 U CN202020443719 U CN 202020443719U CN 211557397 U CN211557397 U CN 211557397U
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Abstract
The utility model relates to a projection circuit board with a composite video interface, which comprises a mainboard; the main board is rectangular; a long edge of the front surface of the mainboard is sequentially provided with a data input interface, an audio output interface and a video input interface; a short edge of the front surface of the mainboard is provided with a first video output interface; the middle part of the front surface of the mainboard is provided with a processor; a second video output interface and a power socket are sequentially arranged on the back surface of the main board and the long edge opposite to the long edge provided with the data input interface; the output end of the data input interface and the output end of the video input interface are both connected with the input end of the processor; the input end of the audio output interface, the input end of the first video output interface and the input end of the second video output interface are all connected with the output end of the processor; the power socket is electrically connected with the processor; after the projector is used for a long time, the connection among the components cannot be loosened, so that the stability of the projection process is ensured; the space of make full use of mainboard reduces the occupation space of circuit board, makes the structure of projecting apparatus compacter.
Description
Technical Field
The utility model relates to a with screen projection technical field, more specifically say, relate to a projection circuit board with compound video interface.
Background
The projector is a common device in office use, and the projector can project a picture of a computer on a curtain in real time and perform operation on the computer to perform speech or product display. Along with the popularization and application of intelligent terminals such as cell-phones and panel computers, the demand of carrying out the projection with the screen through cell-phones or panel computers is also higher and higher, and current projecting apparatus increases the main control board that realizes the projection with the screen on the inside circuit board mostly to connect the interface on two circuit boards respectively through the wire, realize data transmission, but interface looseness appears after long-time use in this kind of design easily, has influenced the quality and the stability of the projection with the screen, and occupation space is big.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a projection circuit board with compound video interface is provided.
The utility model provides a technical scheme that its technical problem adopted is:
the projection circuit board with the composite video interface comprises a main board; the main board is rectangular; a long edge of the front surface of the mainboard is sequentially provided with a data input interface, an audio output interface and a video input interface; a short edge of the front surface of the main board is provided with a first video output interface; the middle part of the front surface of the main board is provided with a processor; a second video output interface and a power socket are sequentially arranged on the back surface of the main board and the long edge opposite to the data input interface; the output end of the data input interface and the output end of the video input interface are both connected with the input end of the processor; the input end of the audio output interface, the input end of the first video output interface and the input end of the second video output interface are all connected with the output end of the processor; the power socket is electrically connected with the processor.
Further, the video input interface comprises a composite video interface and a first HDMI interface; the composite video interface is positioned between the audio output interface and the first HDMI interface; the output end of the composite video interface and the output end of the first HDMI interface are connected with the input end of the processor.
Further, the video input interface further comprises a second HDMI interface; the second HDMI is positioned on the long edge of the back surface of the mainboard, which is opposite to the first HDMI; and the output end of the second HDMI interface is connected with the input end of the processor.
Furthermore, infrared receivers are arranged on two short edges of the front surface of the main board; and the output end of the infrared receiver is connected with the input end of the processor.
Furthermore, a power supply assembly is arranged on the front surface of the mainboard between the processor and the first video output interface; the power supply assembly is electrically connected with the power socket; the power supply assembly is electrically connected with the processor.
Furthermore, a concave position is arranged at the joint of the long edge of the main board close to the second HDMI interface and the short edge provided with the first video output interface.
Furthermore, a heat dissipation mounting position is arranged on the back surface of the main board close to the short edge of the concave position; the heat dissipation mounting position is electrically connected with the power supply assembly.
Furthermore, a loudspeaker mounting position is arranged on the back surface of the main board close to the concave position; and the input end of the loudspeaker mounting position is connected with the output end of the processor.
Furthermore, a volume adjusting component is arranged on the front surface of the mainboard at a position corresponding to the loudspeaker mounting position; the input end of the volume adjusting component is connected with the output end of the processor; the output end of the volume adjusting component is connected with the input end of the loudspeaker mounting position.
Furthermore, a key assembly is arranged on the back of the main board on one side of the second video output interface far away from the power socket; the output end of the key assembly is connected with the input end of the processor.
The beneficial effects of the utility model reside in that: by arranging the data input interface, the video input interface and the processor on the same main board, after the projector is used for a long time, the connection among the components cannot be loosened, and the stability of the projection process is ensured; the front and the back of mainboard are established with each interface branch, can reduce the volume of mainboard, and the space of make full use of mainboard reduces the occupation space of circuit board in the projecting apparatus for the structure of projecting apparatus is compacter, and experience effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:
fig. 1 is a schematic front view of a projection circuit board with a composite video interface according to a preferred embodiment of the present invention;
fig. 2 is a schematic diagram of a rear side structure of a projection circuit board with a composite video interface according to a preferred embodiment of the present invention;
fig. 3 is a circuit connection block diagram of a projection circuit board with a composite video interface according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, a projection circuit board with a composite video interface according to a preferred embodiment of the present invention includes a main board 1; the main board 1 is rectangular; a long edge of the front surface of the main board 1 is sequentially provided with a data input interface 51, an audio output interface 21 and a video input interface; a first video output interface 41 is arranged on a short side of the front surface of the main board 1; the middle part of the front surface of the mainboard 1 is provided with a processor 3; the back of the main board 1 and the long side opposite to the long side provided with the data input interface 51 are sequentially provided with a second video output interface 42 and a power socket 6; the output end of the data input interface 51 and the output end of the video input interface are both connected with the input end of the processor 3; the input end of the audio output interface 21, the input end of the first video output interface 41 and the input end of the second video output interface 42 are all connected with the output end of the processor 3; the power socket 6 is electrically connected with the processor 3; the data input interface 51 is a USB interface and is used for being connected with mobile equipment such as a mobile phone and the like through a data line, the video input interface is used for being connected with equipment such as a computer or a television and the like through a corresponding lead and transmitting projection contents to the processor 3, the processor 3 transmits the projection contents to the first video output interface 41 and the second video output interface 42 for projection, the data input interface 51, the video input interface and the processor 3 are arranged on the same main board 1, all structures are connected in a packaging mode, after the projector is used for a long time, the connection among all components cannot be loosened, and the stability of the projection process is guaranteed; establish each interface branch at the front and the back of mainboard 1, can reduce the volume of mainboard 1, make full use of mainboard 1's space reduces the occupation space of circuit board in the projecting apparatus for the structure of projecting apparatus is compacter, and experience effect is better.
In the above embodiment, a USB interface may be added to the side of the main board 1 located at the video input interface, so as to fully utilize the space of the main board 1 and improve the use effect of the projector; the first video output interface 41 is a VGA interface, the second video output interface 42 is a LCD display interface, and the computer and other devices are connected to the VGA interface, so as to synchronously project the projection content to the computer and other devices, the LCD display interface is connected to the LCD display screen, the processor transmits the projection content to the LCD display screen, and the projection content is projected to the curtain by the LED light irradiation in the projector.
In a further embodiment, the video input interface comprises a composite video interface 53 and a first HDMI interface 52; the composite video interface 53 is located between the audio output interface 21 and the first HDMI interface 52; the output end of the composite video interface 53 and the output end of the first HDMI interface 52 are both connected with the input end of the processor 3; the composite video interface 53 is an AV interface, the number of the first HDMI interfaces 52 is two, according to the actual situation of a television or a computer device, the connection with the AV interface or the connection with the first HDMI interface 52 is selected, the projected video content is transmitted to the processor 3, the processor 3 transmits the content to the first video output interface 41 and the second video output interface 42, the same-screen projection is performed, the types of the interfaces are multiple, the projection of multiple devices can be satisfied, and the convenience in use of the projector is improved.
In a further embodiment, the video input interface further comprises a second HDMI interface 54; the second HDMI interface 54 is located on the back side of the main board 1 on the long side opposite to the first HDMI interface 52; the output end of the second HDMI interface 54 is connected to the input end of the processor 3; the second HDMI interface 54 is disposed on the back of the motherboard 1, and provides more HDMI interfaces to meet the connection requirements of the device.
In a further embodiment, infrared receivers 8 are arranged at two short edges of the front surface of the main board 1; the output end of the infrared receiver 8 is connected with the input end of the processor 3; the infrared receiver 8 receives an instruction of the infrared remote controller, feeds the instruction back to the processor 3, and the processor 3 outputs the instruction to control the driving program of the equipment connected to the projector to switch.
In a further embodiment, a power supply module 61 is disposed on the front surface of the main board 1 between the processor 3 and the first video output interface 41; the power supply component 61 is electrically connected with the power socket 6; the power supply component 61 is electrically connected with the processor 3; the power supply module 61 is connected with the power socket 6, the power socket 6 is connected with an external power supply to supply power to the power supply module 61, the power supply module 61 supplies power to the processor 3 and other components, and the power supply module 61 is connected with the processor 3 and other components through copper wires.
In a further embodiment, the main board 1 is provided with a recessed portion 11 near the connection between the long side of the second HDMI interface 54 and the short side provided with the first video output interface 41; a heat dissipation mounting position 7 is arranged on the short side of the back surface of the main board 1 close to the concave position 11; the heat dissipation mounting position 7 is electrically connected with the power supply component 61; the concave position 11 can be provided with two cooling fans, the cooling fans are electrically connected with the cooling installation positions 7, and the two cooling installation positions 7 can be provided with two cooling fans, so that the cooling capacity of the projector is improved, and the occupied space of the circuit board is further reduced.
In a further embodiment, a speaker mounting position 22 is arranged on the back of the main board 1 near the concave position 11; the input end of the loudspeaker installation position 22 is connected with the output end of the processor 3; the speaker installation site 22 is installed with a speaker, and a user can select to play sound from the speaker or use the projector by connecting an external device such as an earphone through the audio output interface 21.
In a further embodiment, a volume adjusting component 23 is arranged on the front surface of the main board 1 at a position corresponding to the speaker mounting position 22; the input end of the volume adjusting component 23 is connected with the output end of the processor 3; the output end of the volume adjusting component 23 is connected with the input end of the loudspeaker installation position 22; what volume adjustment subassembly 23 adopted is that the current volume adjustment subassembly of using at the projecting apparatus, openly sets up this part of volume adjustment subassembly 23 at mainboard 1, with the speaker installation position 22 at the mainboard 1 back, reduces the occupation space of circuit board for the structure of projecting apparatus is compacter, and experience effect is better.
In a further embodiment, a key assembly 9 is disposed on the back of the main board 1 on a side of the second video output interface 42 away from the power socket 6; the output end of the key assembly 9 is connected with the input end of the processor 3; the key assembly 9 is used to adjust the projection brightness and resolution of the projector.
In the above embodiment, the processor 3, the USB interface, the audio output interface 21, the first HDMI interface 52, the second HDMI interface 54, the composite video interface 53, the VGA interface, the LCD display interface, the power socket 6, the power supply module 61, the speaker mounting position 22, and the key module 9 all adopt modules applied to the existing projector, and the circuit board sets the input interfaces of the processor 3, the USB interface, the first HDMI interface 52, the second HDMI interface 54, and the composite video interface 53 on the same main board 1, so that after the projector is used for a long time, the connections between the modules are not loosened, and the stability of the projection process is ensured; the subassemblies of each part are respectively arranged on the front and the back of the mainboard 1, the space of the mainboard 1 is fully utilized, and the occupied space of the circuit board in the projector is reduced, so that the structure of the projector is more compact, and the experience effect is better.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A projection circuit board with a composite video interface is characterized by comprising a main board; the main board is rectangular; a long edge of the front surface of the mainboard is sequentially provided with a data input interface, an audio output interface and a video input interface; a short edge of the front surface of the main board is provided with a first video output interface; the middle part of the front surface of the main board is provided with a processor; a second video output interface and a power socket are sequentially arranged on the back surface of the main board and the long edge opposite to the data input interface; the output end of the data input interface and the output end of the video input interface are both connected with the input end of the processor; the input end of the audio output interface, the input end of the first video output interface and the input end of the second video output interface are all connected with the output end of the processor; the power socket is electrically connected with the processor.
2. The circuit board of claim 1, wherein the video input interface comprises a composite video interface and a first HDMI interface; the composite video interface is positioned between the audio output interface and the first HDMI interface; the output end of the composite video interface and the output end of the first HDMI interface are connected with the input end of the processor.
3. The circuit board of claim 2, wherein the video input interface further comprises a second HDMI interface; the second HDMI is positioned on the long edge of the back surface of the mainboard, which is opposite to the first HDMI; and the output end of the second HDMI interface is connected with the input end of the processor.
4. The circuit board according to claim 3, wherein infrared receivers are arranged at two short sides of the front surface of the main board; and the output end of the infrared receiver is connected with the input end of the processor.
5. The circuit board of claim 3, wherein a power supply component is disposed on the front side of the motherboard between the processor and the first video output interface; the power supply assembly is electrically connected with the power socket; the power supply assembly is electrically connected with the processor.
6. The circuit board according to claim 5, wherein the main board is provided with a recessed portion near a connection between a long side of the second HDMI interface and a short side of the first video output interface.
7. The circuit board of claim 6, wherein the back surface of the main board is provided with a heat dissipation mounting position near the short side of the concave position; the heat dissipation mounting position is electrically connected with the power supply assembly.
8. The circuit board of claim 6, wherein a speaker mounting location is provided on the back surface of the main board near the recessed location; and the input end of the loudspeaker mounting position is connected with the output end of the processor.
9. The circuit board of claim 8, wherein the front surface of the main board is provided with a volume adjustment component at a position corresponding to the speaker mounting position; the input end of the volume adjusting component is connected with the output end of the processor; the output end of the volume adjusting component is connected with the input end of the loudspeaker mounting position.
10. The circuit board of claim 1, wherein a key assembly is disposed on the back of the main board on a side of the second video output interface away from the power socket; the output end of the key assembly is connected with the input end of the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020443719.3U CN211557397U (en) | 2020-03-31 | 2020-03-31 | Projection circuit board with composite video interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020443719.3U CN211557397U (en) | 2020-03-31 | 2020-03-31 | Projection circuit board with composite video interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211557397U true CN211557397U (en) | 2020-09-22 |
Family
ID=72496242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020443719.3U Expired - Fee Related CN211557397U (en) | 2020-03-31 | 2020-03-31 | Projection circuit board with composite video interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211557397U (en) |
-
2020
- 2020-03-31 CN CN202020443719.3U patent/CN211557397U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 |