CN109714553B - Television power supply device based on USB power supply - Google Patents
Television power supply device based on USB power supply Download PDFInfo
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- CN109714553B CN109714553B CN201811630299.3A CN201811630299A CN109714553B CN 109714553 B CN109714553 B CN 109714553B CN 201811630299 A CN201811630299 A CN 201811630299A CN 109714553 B CN109714553 B CN 109714553B
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- power supply
- voltage
- television
- display device
- power
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Abstract
The invention provides a television power supply device based on a USB power supply. The display device of the present invention is provided with a shockproof fixing device 10, the shockproof fixing device 10 includes a support device 4, a screw holder 5, a floating holder 6, and a pressure generator 7, and the screw holder 5, the floating holder 6, and the pressure generator 7 are connected to the support device 4. The device is convenient to supply power, and has very strong stability, firmness and anti-vibration function.
Description
Technical Field
The invention belongs to the field of television power supplies, and particularly relates to a power supply device for supplying power to a television.
Background
With the development of the times, people pay more attention to the improvement of life quality, multifunctional and intelligent products are produced at the same time in order to meet the requirements of the public in different aspects, and high-tech products such as smart televisions, flat panels, mobile phones and the like are moved to thousands of households. The common power supply of the liquid crystal television is AC power supply or DC12V power supply, the requirement on the power supply is strict, however, the popularization of mobile equipment, QC2.0/3.0 charging equipment, the research and development of television products powered by USB inevitably enter the field of vision of the public, and the popularization wins the favor of consumers.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a television power supply device based on a USB power supply.
The technical scheme adopted by the invention is a television power supply device based on a USB power supply,
the device comprises a power supply, a voltage intelligent conversion device and a control device, wherein the power supply is connected to the voltage intelligent conversion device, and the voltage intelligent conversion device is used for converting an input voltage into a 9V or 12V voltage; the output voltage of the intelligent voltage conversion device is output to a display device, and the display device is connected to the shockproof fixing device;
the shockproof fixing device comprises: a screw holder, a floating holder, a pressure generator,
the display device is provided with a shockproof fixing device, wherein the shockproof fixing device comprises a support device, a spiral fixer, a floating fixer and a pressure generator, and the spiral fixer, the floating fixer and the pressure generator are all connected with the support device;
the display device is also connected with a power controller, and the power controller is used for controlling the power output to the display device by the intelligent voltage conversion device;
shockproof fixing device includes the hanging part for install on the wall, perhaps on the vertical facade, be provided with the spiral fixer on the hanging part, include: the butt joint components are provided with threaded holes, and the threaded holes are aligned with threaded holes in a supporting piece on the back of the display and are fixed through rotating screws;
the screw holder further comprises a screw extender, and both ends of the screw extender are extended by rotating the screw extender;
the shockproof fixing device comprises a floating fixer and a pressure generator, wherein the floating fixer comprises an air cushion and is connected with the pressure generator, and the pressure generator comprises an air source piston;
a flat plate support is arranged below the air cushion, and the air cushion is placed on the flat plate support;
the pressure generator comprises an air source piston, a weight is connected below the piston, and when the vehicle bumps, the weight vibrates up and down to cause the weight to vibrate up and down, so that the air in the piston is further compressed, and the air cushion is inflated through a one-way valve;
the intelligent voltage conversion device can convert an input power voltage into DC5V3A, or 9V2.5A, or 12V2A to supply power to the television display device by adopting a Type-C interface.
The display device comprises a backlight module, the backlight module is used for a display device with the size below 24 inches, the backlight power is controlled to be less than 10W, and the brightness is 50-180 NIT.
The method comprises the steps of designing a power amplifier and a sound processing circuit to realize multiple sound reproduction channels, including a loudspeaker of a television and a loudspeaker hung outside a motor home, and realizing the synchronism of the playing of each sound channel.
Has the advantages that:
the technical scheme of the invention has the following beneficial effects:
1. on the basis of the existing wall hanging, the reliability of the wall hanging is improved, and no problem exists even on a bumpy road on a vehicle.
2. The TV can support 5V/9V/12V power supply, utilizes ordinary Type-C interface can supply power, convenient and fast to the TV display.
3. The technical scheme of the invention supports QC2.0/3.0 technology and realizes the automatic quick charging function.
Drawings
Fig. 1 is a schematic diagram of a power supply for a television in the prior art;
FIG. 2 is a schematic diagram of another prior art television power supply;
FIG. 3 is a block diagram of a television power supply apparatus based on a USB power supply according to the present invention;
FIG. 4 is a view showing the construction of the shockproof fixing device of the present invention;
FIG. 5 is a schematic diagram of a voltage conversion circuit of the present invention;
FIG. 6 is a schematic diagram of the power amplifier circuit of the present invention;
fig. 7 is a diagram of an application scenario of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
The technical scheme of the invention is explained in the following by combining the drawings in the specification.
As shown in fig. 1, the power supply device and method for tv power supply in prior art includes a plug at the back of tv, which is plugged into a 220V power supply installed on the wall to obtain power, and then the 220V power supply is converted into 5-12V power supply by a power converter of tv itself for the power supply of display panel. In addition, as shown in fig. 2, a power supply device and method for a television power supply in the prior art are provided, wherein the difference from fig. 1 is that a power supply line is provided with a power converter for converting a 220V voltage into a voltage required by a television.
As shown in fig. 3, a block diagram of a power supply device for a television based on a USB power supply according to the present invention includes a power supply 1, a voltage intelligent converter 2, a display device 3, a shockproof fixing device 4, a spiral fixing device 5, a floating fixing device 6, a pressure generator 7, and a power controller 8.
The television comprises a display device, the television is usually a wall-mounted flat panel television, and the application scenes mainly comprise: on-board, aircraft, navigation, motor cars, etc., because the jolting motion in the above-mentioned environment is very violent, the support is required to have very strong stability, firmness and anti-vibration function.
To this end, the display device of the present invention is provided with an anti-vibration fixing device 10, the anti-vibration fixing device 10 including a stand device 4, a screw holder 5, a floating holder 6, and a pressure generator 7, the screw holder 5, the floating holder 6, and the pressure generator 7 being connected to the stand device 4. The above-described anti-vibration fixing device 10 will be further described with reference to fig. 4.
The shockproof fixing device 10 comprises a wall hanging part 41 for being mounted on a wall or a vertical facade, wherein a spiral fixer is arranged on the wall hanging part 41, and the shockproof fixing device comprises: and the butt joint parts 44 are provided with threaded holes which are aligned with the threaded holes on the support on the back surface of the display and are fixed by rotating a screw rod. Thereby preventing the display from vibrating up and down. The screw holder 5 further includes a screw extender 45, and the screw extender 45 is rotated to extend both ends of the screw extender 45 as indicated by arrows in the figure, thereby generating a reaction force pushing the tv display and the wall hanging member against each other. Thereby preventing the display from vibrating left and right in the horizontal direction,
the anti-shock fixing device 10 comprises a floating holder 6 and a pressure generator 7, wherein the floating holder 6 comprises an air cushion 48 connected to the pressure generator 7, and the pressure generator 7 comprises an air source piston 46. Below the air cushion 48, which is placed on the flat plate support 49, there is a flat plate support 49, and the display prevents the vibration amplitude from being excessive by cushioning the air cushion to thereby reduce the up-and-down vibration amplitude. The pressure generator 7 includes an air source piston 46, a weight 461 is connected below the piston 46, and when the vehicle jounces, the weight vibrates up and down to further compress the air in the piston 46, and the air cushion 48 is inflated through a check valve, so that the air in the air cushion 48 is not deficient, and a good buffering effect is achieved.
The power supply 1 is connected with the intelligent voltage conversion device 2, and the intelligent voltage conversion device 2 is used for converting the input power supply voltage into voltage meeting the requirements of the display device; the intelligent voltage conversion device 2 can adopt a Type-C interface to convert an input power voltage into DC5V3A, or 9V2.5A, or 12V2A to supply power to the television display device.
The intelligent voltage conversion device 2 comprises a DC-DC voltage conversion circuit, and can boost and convert 5V voltage into 9V, 12V or other voltages and adjust corresponding output current. The 5V to 9V circuit is shown in fig. 5. The circuit is a QC3.0 quick-charging circuit diagram capable of converting 5V input into 9V or 12V. It supports the protocol: QC3.0, QC2.0, hua FCP, samsung AFC, apple identification, BC1.2 protocol. The quick-charging USB plug and socket can be suitable for a double-port quick-charging charger, a multi-port charger, a USB quick-charging socket and the like.
The circuit comprises an input power supply 5V, voltage boosting and conversion are carried out through chips PL7512 and FP6601Q, and the converted voltage is output through a USB interface; the input end is connected with filter capacitors C1 and C2, an inductor L1 is connected to a voltage regulator tube D1, then is connected to voltage dividing resistors R1 and R2, the divided voltage is input to an FBO input end in FP6601Q, and capacitors at output ends C5, C6 and C8 are grounded.
The voltage output by the intelligent voltage conversion device 2 is supplied to the display device 3, the display device 3 comprises a backlight module, the technical scheme of the invention considers the problem of the power of the whole backlight module, the backlight module is small in size and comprises a backlight module with the size below 24 inches, the backlight power is controlled within 10W, and the brightness is about 150 NIT. Wherein the power output into the display device 3 is controlled by the power controller 8.
In addition, referring to fig. 6, according to the preferred embodiment of the present invention, the power amplifier and the sound processing circuit are designed to realize multiple sound reproduction channels, including the speaker of the television itself and the speaker hung outside the caravan, so as to realize the synchronization of the playing of each sound channel. The horn power is designed to be 2 x 2W. LM4889 is an audio power amplifier mainly used in mobile phones. With a 5V supply, it can provide a continuous average power output of 2 watts (8 Ω bridge load) with less than 2% distortion (THD + N). With reference to fig. 6, LM4889 requires fewer external components and does not require an output coupling capacitor or start-up capacitor, and is therefore suitable for mobile phones and other low voltage applications. The LM4889 has low power consumption, shutdown protection mechanism, and noise elimination function, and can be configured with external gain setting resistor.
FIG. 7 is a schematic diagram of the present invention applied to a vehicle, which is suspended on the inner wall of the vehicle through a shockproof fixing device and supplies power to a television display through a Type-C interface, so that the present invention is fast, convenient, sturdy, durable and effective.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A television power supply unit based on USB power supply which characterized in that:
the device comprises a power supply, a voltage intelligent conversion device and a control device, wherein the power supply is connected to the voltage intelligent conversion device, and the voltage intelligent conversion device is used for converting an input voltage into a 9V or 12V voltage; the output voltage of the intelligent voltage conversion device is output to a display device;
the display device is provided with a shockproof fixing device, the shockproof fixing device comprises a support device, a spiral fixer, a floating fixer and a pressure generator, and the spiral fixer, the floating fixer and the pressure generator are all connected with the support device;
the display device is also connected with a power controller, and the power controller is used for controlling the power output to the display device by the intelligent voltage conversion device;
shockproof fixing device includes the hanging part for install on the wall, perhaps on the vertical facade, be provided with the spiral fixer on the hanging part, the spiral fixer includes: the butt joint components are provided with threaded holes, and the threaded holes are aligned with threaded holes in a supporting piece on the back of the display and are fixed through rotating screws;
the screw holder further comprises a screw extender, and both ends of the screw extender are extended by rotating the screw extender;
the floating fixture includes an air cushion connected to a pressure generator, the pressure generator including an air source piston;
a flat plate support is arranged below the air cushion, and the air cushion is placed on the flat plate support;
the weight is connected below the piston, and when the vehicle jolts, the weight vibrates up and down to cause the weight to vibrate up and down, thereby further compressing the air in the piston and inflating the air cushion through the one-way valve.
2. A television power supply apparatus based on USB power supply as claimed in claim 1, wherein: the intelligent voltage conversion device can convert an input power voltage into DC5V3A, or 9V2.5A, or 12V2A to supply power to the television display device by adopting a Type-C interface.
3. A television power supply apparatus based on USB power supply as claimed in claim 1, wherein: the display device comprises a backlight module, the backlight module is used for a display device with the size below 24 inches, the backlight power is controlled to be less than 10W, and the brightness is 50-180 NIT.
4. A television power supply apparatus based on USB power supply as claimed in claim 1, wherein: the system comprises a power amplifier and a sound processing circuit, so as to realize the playing synchronism of a plurality of sound reproduction channels, wherein the plurality of sound reproduction channels comprise a loudspeaker of a television and a loudspeaker hung outside a motor home.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630299.3A CN109714553B (en) | 2018-12-29 | 2018-12-29 | Television power supply device based on USB power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630299.3A CN109714553B (en) | 2018-12-29 | 2018-12-29 | Television power supply device based on USB power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109714553A CN109714553A (en) | 2019-05-03 |
| CN109714553B true CN109714553B (en) | 2020-01-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811630299.3A Expired - Fee Related CN109714553B (en) | 2018-12-29 | 2018-12-29 | Television power supply device based on USB power supply |
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| Country | Link |
|---|---|
| CN (1) | CN109714553B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004229051A (en) * | 2003-01-24 | 2004-08-12 | Sharp Corp | Stand type thin television |
| CN201393276Y (en) * | 2009-03-31 | 2010-01-27 | 深圳创维－Rgb电子有限公司 | Flat panel television |
| CN101742189A (en) * | 2008-11-17 | 2010-06-16 | 康佳集团股份有限公司 | Wall mounting type ultra-thin television |
| CN101969264A (en) * | 2009-07-28 | 2011-02-09 | 联芯科技有限公司 | Power supply method, device and system |
-
2018
- 2018-12-29 CN CN201811630299.3A patent/CN109714553B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004229051A (en) * | 2003-01-24 | 2004-08-12 | Sharp Corp | Stand type thin television |
| CN101742189A (en) * | 2008-11-17 | 2010-06-16 | 康佳集团股份有限公司 | Wall mounting type ultra-thin television |
| CN201393276Y (en) * | 2009-03-31 | 2010-01-27 | 深圳创维－Rgb电子有限公司 | Flat panel television |
| CN101969264A (en) * | 2009-07-28 | 2011-02-09 | 联芯科技有限公司 | Power supply method, device and system |
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| Publication number | Publication date |
|---|---|
| CN109714553A (en) | 2019-05-03 |
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