CN210982994U

CN210982994U - High-brightness liquid crystal screen with 12V power supply provided by backlight driving board

Info

Publication number: CN210982994U
Application number: CN201922284690.9U
Authority: CN
Inventors: 周清虎; 梁坚河
Original assignee: Shenzhen City Huaer Xiankong Technology Co ltd
Current assignee: Shenzhen City Huaer Xiankong Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-07-10
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a highlight LCD screen for providing 12V power from backlight drive board, which comprises a screen shell, a backlight drive board, a voltage stabilizing diode, a low pass filter and a wire holder, wherein in the process of using the highlight LCD screen, different charging interfaces can be directly connected to the mainboard, the fan, the loudspeaker and other accessories requiring 12V DC voltage in the LCD screen, the backlight drive board and the accessories requiring 12V DC voltage such as the mainboard, the fan, the loudspeaker and the like are conducted and powered by circuits through a binding post, a connecting wire and a conductive pressure head, the internal space of the device and the product cost can be effectively saved, meanwhile, the wire holder is adjusted to lift in real time through thread twisting, the height of the conductive pressure head at the bottom of the wire holder is adjusted, the wire holder can be connected with wires with different thicknesses and specifications, the use limitation is reduced, and the stability and the safety of a power supply line are improved, the circuit connection device is prevented from being damaged due to the fact that the voltage is too large.

Description

High-brightness liquid crystal screen with 12V power supply provided by backlight driving board

Technical Field

The utility model relates to a LCD screen technical field specifically is a highlight LCD screen that provides 12V power from backlight drive board.

Background

The liquid crystal screen uses liquid crystal material as basic component, and the liquid crystal material is filled between two parallel plates, and the arrangement state of internal partial molecules of liquid crystal material can be changed by means of voltage so as to attain the goal of shading light and transmitting light, and can display colour image. The lcd panel has low power consumption, and is therefore popular with engineers and suitable for electronic devices using batteries.

Current LCD screen or intelligent terminal display device are at the in-process that uses, and its inside needs a lot of powers to carry out the power supply of different accessories, leads to the complexity of internal circuit connection ten minutes, easy trouble problem and inconvenient maintenance appear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a highlight LCD screen that provides 12V power from backlight drive board to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a provide highlight LCD screen of 12V power from backlight drive board, includes the screen shell, the inboard fixed mounting of screen shell has backlight drive board, there is zener diode at backlight drive board's top through conducting block fixed mounting, one side fixed mounting of zener diode has low pass filter, the both sides of low pass filter all fixed mounting have the connection terminal, the top screw thread of connection terminal runs through movable mounting and has the terminal, the bottom of terminal rotates through the pivot and installs electrically conductive pressure head, electrically conductive pressure head's bottom activity pressfitting installs connecting wire, connecting wire's the outer end is fixed mounting all has the interface that charges.

As a further aspect of the present invention: the screen shell is characterized in that positioning blocks are fixedly arranged at four corners of the bottom of the screen shell, and positioning holes are formed in the surfaces of the positioning blocks.

As a further aspect of the present invention: the top of the screen shell is movably provided with a screen cover plate, and the top of the screen cover plate is embedded with a display main screen.

As a further aspect of the present invention: a heat conduction hole is formed in the surface of one side of the screen shell, and a dustproof net is fixedly mounted on the inner side of the heat conduction hole.

As a further aspect of the present invention: and the surface of the screen shell corresponding to the backlight driving board is embedded with an external interface, and the external interface is electrically connected with the backlight driving board through a connecting wire.

As a further aspect of the present invention: the voltage-stabilizing diode, the low-pass filter and the wire holder are electrically connected through connecting wires.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in-process that the highlight LCD screen used, can be directly be connected to the inside mainboard of LCD screen respectively with the interface that charges of difference, the fan, on the accessory of needs 12V DC voltage such as loudspeaker, through the terminal, connecting wire and electrically conductive pressure head are with drive plate and mainboard in a poor light, the fan, the accessory that needs 12V DC voltage such as loudspeaker carries out the circuit and switches on the power supply, can effectually save equipment inner space and product cost, adjust terminal real-time lift through the screw thread wrench movement simultaneously, highly adjust the electrically conductive pressure head of its bottom, make the wire of different thicknesses and specifications can be connected to the connection terminal, the restriction of using has been reduced.

2. In daily power supply use, judge through adopting zener diode to carry out input voltage, when input voltage is less than direct current 12V, can directly provide external system and use, when input voltage is higher than direct current 12V, can stabilize voltage at direct current 12V through low pass filter, then supply external system and use, improved the stability and the security of power supply line, avoid voltage too big to lead to the circuit connection device to break down and damage.

Drawings

Fig. 1 is a schematic diagram of an internal structure of a high-brightness liquid crystal panel to which a 12V power supply is supplied from a backlight driving board.

Fig. 2 is a side view of a highlight liquid crystal panel to which a 12V power is supplied from a backlight driving board.

Fig. 3 is a schematic diagram showing a structure of a wiring portion of a high-brightness liquid crystal panel to which a 12V power is supplied from a backlight driving board.

Shown in the figure: 1. a screen housing; 2. a voltage regulator diode; 3. a conductive block; 4. a binding post; 5. a backlight driving board; 6. a wire holder; 7. connecting a lead; 8. a low-pass filter; 9. a charging interface; 10. positioning holes; 11. positioning blocks; 12. an external interface; 13. a screen cover plate; 14. displaying a main screen; 15. a conductive indenter; 16. a rotating shaft; 17. a heat conduction hole; 18. a dust screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a high brightness lcd panel providing 12V power from a backlight driving board includes a screen housing 1, a backlight driving board 5 is fixedly installed on an inner side of the screen housing 1, a zener diode 2 is fixedly installed on a top of the backlight driving board 5 through a conductive block 3, a low pass filter 8 is fixedly installed on one side of the zener diode 2, the model of the low pass filter 8 can be BNX005-01, a manufacturer is shenzhen seikang cornus electronics limited company, the input voltage is determined by using the zener diode 2, when the input voltage is lower than the direct current 12V, the low pass filter 8 can be used for stabilizing the voltage at the direct current 12V, and then the input voltage is supplied to an external system for use, so as to improve stability and safety of a power supply line, avoid the circuit connecting device from being damaged due to failure caused by overlarge voltage, both sides of the low-pass filter 8 are fixedly provided with wire holders 6, the top threads of the wire holders 6 are movably provided with wiring posts 4 in a penetrating way, the bottom of the wiring posts 4 is rotatably provided with conductive pressure heads 15 through rotating shafts 16, the bottom of the conductive pressure heads 15 is movably provided with connecting leads 7 in a press fit way, the outer ends of the connecting leads 7 are fixedly provided with charging interfaces 9, different charging interfaces 9 can be directly connected to accessories such as a mainboard, a fan, a loudspeaker and the like which need 12V direct current voltage in the liquid crystal screen respectively, the backlight driving board 5 and the accessories such as the mainboard, the fan, the loudspeaker and the like which need 12V direct current voltage are conducted and powered through the wiring posts 4, the connecting leads 7 and the conductive pressure heads 15, the internal space of the device and the product cost can, the height of a conductive pressure head 15 at the bottom of the screen shell is adjusted, so that the wire holder 6 can be connected with wires with different thicknesses and specifications, the use limitation is reduced, positioning blocks 11 are fixedly arranged at four corners at the bottom of the screen shell 1, positioning holes 10 are formed in the surfaces of the positioning blocks 11, a screen cover plate 13 is movably arranged at the top of the screen shell 1, a main display screen 14 is embedded and arranged at the top of the screen cover plate 13, a heat conduction hole 17 is formed in one side surface of the screen shell 1, a dustproof net 18 is fixedly arranged on the inner side of the heat conduction hole 17, heat generated by the operation of devices inside the liquid crystal screen can be led out and dissipated in real time, meanwhile, external dust particles can be prevented from entering the liquid crystal screen, an external port 12 is embedded and arranged on the surface of the screen shell 1 corresponding to the backlight driving board 5, and the external port 12 is, the voltage stabilizing diode 2, the low pass filter 8 and the wire holder 6 are electrically connected through a connecting wire 7.

The utility model discloses a theory of operation is: in the process of using the high-brightness liquid crystal display, different charging interfaces 9 can be directly connected to accessories such as a mainboard, a fan and a loudspeaker which are arranged in the liquid crystal display and need 12V direct-current voltage respectively, the backlight driving board 5 and the accessories such as the mainboard, the fan and the loudspeaker which need 12V direct-current voltage are subjected to circuit conduction power supply through the wiring terminal 4, the connecting lead 7 and the conductive pressure head 15, the internal space of equipment and the product cost can be effectively saved, meanwhile, the wiring terminal 4 is adjusted to lift in real time through thread twisting, the height of the conductive pressure head 15 at the bottom of the wiring terminal is adjusted, the wiring seat 6 can be connected with leads with different thicknesses and specifications, the use limitation is reduced, meanwhile, in the daily power supply use process, the input voltage judgment is carried out through the voltage stabilizing diode 2, when the input voltage is lower than the direct current 12V, the input voltage, when the input voltage is higher than the direct current 12V, the voltage can be stabilized at the direct current 12V through the low-pass filter 8 and then supplied to an external system for use, so that the stability and the safety of a power supply line are improved, and the circuit connection device is prevented from being damaged due to faults caused by overlarge voltage.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A high-brightness liquid crystal screen providing 12V power from a backlight driving board, comprising a screen casing (1), characterized in that: the utility model discloses a screen shell's screen shell, including screen shell (1), inboard fixed mounting have backlight drive plate (5), the top of backlight drive plate (5) has zener diode (2) through conducting block (3) fixed mounting, one side fixed mounting of zener diode (2) has low pass filter (8), the both sides of low pass filter (8) are all fixed mounting have wire holder (6), the top screw thread of wire holder (6) runs through movable mounting and has terminal (4), the bottom of terminal (4) is rotated through pivot (16) and is installed electrically conductive pressure head (15), connecting wire (7) are installed to the bottom movable pressing fit of electrically conductive pressure head (15), the outer end of connecting wire (7) is fixed mounting all and is the interface (9) that charges.

2. A high-brightness liquid crystal panel supplied with a 12V power from a backlight driving board according to claim 1, wherein: four corners of the bottom of the screen shell (1) are fixedly provided with positioning blocks (11), and positioning holes (10) are formed in the surfaces of the positioning blocks (11).

3. A high-brightness liquid crystal panel supplied with a 12V power from a backlight driving board according to claim 1, wherein: the top of the screen shell (1) is movably provided with a screen cover plate (13), and the top of the screen cover plate (13) is embedded with a display main screen (14).

4. A high-brightness liquid crystal panel supplied with a 12V power from a backlight driving board according to claim 1, wherein: heat conduction holes (17) are formed in the surface of one side of the screen shell (1), and a dust screen (18) is fixedly mounted on the inner side of each heat conduction hole (17).

5. A high-brightness liquid crystal panel supplied with a 12V power from a backlight driving board according to claim 1, wherein: the screen shell (1) corresponding to the backlight driving board (5) is provided with an external interface (12) in a surface embedded mode, and the external interface (12) is electrically connected with the backlight driving board (5) through a connecting wire (7).

6. A high-brightness liquid crystal panel supplied with a 12V power from a backlight driving board according to claim 1, wherein: the voltage stabilizing diode (2), the low-pass filter (8) and the wire holder (6) are electrically connected through a connecting wire (7).