CN209980701U

CN209980701U - Digital display screen shell structure

Info

Publication number: CN209980701U
Application number: CN201921122931.3U
Authority: CN
Inventors: 蒋海霞; 傅宇翔; 蒋雪东
Original assignee: Sincom Communication Co Ltd
Current assignee: Sincom Communication Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-01-21
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a digital display screen shell structure relates to display screen technical field. The shell structure of the digital display screen comprises a frame, wherein the frame is enclosed into a clamping groove for embedding a PCB (printed circuit board); the PCB is arranged in the clamping groove, an LED display area is arranged on the PCB, and the LED display area is connected with a plurality of LED display lamps in series and/or in parallel according to actual requirements; the positioning column penetrates through the PCB to fix the PCB on the shell; and the protective layer covers the PCB and seals the opening of the clamping groove. Adopt PCB embedding shell to the back adopts the protection of UV three proofings lacquer, can save the thickness that the protection was glued, and the characteristic of UV three proofings lacquer itself can effectual protection PCB board receive the damage of moisture, ESD simultaneously. The thickness of the digital display screen can be effectively reduced and controlled within 7 mm.

Description

Digital display screen shell structure

Technical Field

The utility model relates to a display screen technical field especially relates to a digital display screen shell structure.

Background

The structure of traditional digital display screen often can adopt the inside nested PCB lamp plate of white moulded case to can pour into the protection glue at the back of lamp plate. With such a structure, the thickness of the product needs to be considered: the light stroke of LED lamp often needs to be greater than 5mm, and the thickness of PCB board is generally 1.6mm, and protection is glued thickness and is generally 5mm, so whole thickness often needs to be greater than 10 mm.

At present, white household appliances are designed to be more and more ultrathin. The thickness of all components of the internal structure is required to be thinner and thinner, and in response to this trend, an ultra-thin display digital screen will be an industry trend. In addition, most display screens cannot see the inside when not being displayed, and can clearly see the indication content when being displayed, so that the requirement on the brightness of the display screens is higher and higher.

The traditional digital display screen adopts a voltage type LED drive, the principle is that a voltage difference is forcibly supplied to two ends of an LED, for example, 5V voltage is supplied to an anode, 0V voltage is supplied to a cathode, and an LED lamp is driven in the form of the voltage difference. By adopting the form, the brightness of the LED fluctuates along with the voltage fluctuation, and meanwhile, the utilization rate of electric energy is low, so that the ideal display brightness cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a digital display screen shell structure, possible thinner.

In order to solve the technical problem, the utility model provides a digital display screen shell structure, include:

a housing including a frame, the frame enclosing a slot for embedding a PCB);

the PCB is arranged in the clamping groove, an LED display area is arranged on the PCB, and the LED display area is connected with a plurality of LED display lamps in series and/or in parallel according to actual requirements;

the positioning column penetrates through the PCB to fix the PCB on the shell;

and the protective layer covers the PCB and seals the opening of the clamping groove.

The casing orientation PCB board is outstanding to have a plurality of thermovents, the thermovent protrusion forms annular chimb, be equipped with the confession on the PCB board the hole of stepping down that the chimb passed, the chimb with the hole of stepping down laminates in order to increase each other the PCB board with the area of contact of casing.

The heat dissipation port is made of heat conduction materials.

The PCB board orientation draw-in groove open-ended one side salient has a plurality of strengthening ribs, the strengthening rib will the back of PCB board is separated into a plurality of unit district.

The unit areas are rectangular, and at least one heat dissipation port is arranged in the range of two adjacent unit areas.

The unit area is rectangular, polygonal or special-shaped.

The positioning columns comprise LED positioning columns, and the LED positioning columns are distributed around the LED display area.

The number of the LED positioning columns is at least three.

The protective layer is UV three-proofing paint.

The LED display lamp is controlled by constant current, and the constant current is controlled by a constant current LED driving chip.

The utility model has the advantages that:

(1) adopt PCB embedding shell to the back adopts the protection of UV three proofings lacquer, can save the thickness that the protection was glued, and the characteristic of UV three proofings lacquer itself can effectual protection PCB board receive the damage of moisture, ESD simultaneously.

(2) The LED lamp is driven by a professional constant current LED driving chip and constant current, so that the current of the LED lamp is kept stable, and the brightness of the LED lamp is stable. Meanwhile, the utilization rate of the computer is high, and the brightness is larger under the condition that the power consumption is close to 100 percent and the same power consumption.

(3) The thickness of the digital display screen can be effectively reduced and controlled within 7 mm. The digital display screen can still effectively prevent static electricity and moisture, and the display brightness can be improved by more than 30% compared with the traditional digital display screen.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic view showing a back structure of a PCB board.

Wherein: 1. a housing; 11. positioning the bump; 12. a frame; 133. a heat dissipation port; 2. a PCB board; 21. reinforcing ribs; 211. a cell region; 3. An LED display area; 4. a protective layer; 5. a positioning column; 51. LED reference column.

Detailed Description

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1:

the structure of the digital display screen shell structure provided by the embodiment is shown in the figure.

The shell structure of the digital display screen comprises a shell 1 and a shell cover, wherein the shell 1 comprises a frame 12, and the frame 12 is enclosed into a clamping groove for embedding a PCB (printed circuit board) 2;

the PCB 2PCB is arranged in the clamping groove, the PCB 2PCB is provided with an LED display area 3LED, and the LED display area 3LED is connected with a plurality of LED display lamps in series and/or in parallel according to actual requirements;

the positioning columns 51, the LEDs 5 penetrate through the PCB 2 to fix the PCB 2 on the shell 1;

and the protective layer 4 covers the PCB 2 and seals the opening of the card slot.

Casing 1 has a plurality of thermovents 133 towards 2PCB of PCB board outstanding, and thermovent 133 protrusion forms annular chimb, is equipped with the hole of stepping down that supplies the chimb to pass on 2PCB of PCB board, and the chimb laminates the area of contact in order to increase 2PCB of PCB board and casing 1 each other with the hole of stepping down.

The heat dissipation opening 133 is made of a heat conductive material.

The PCB 2PCB is provided with a plurality of reinforcing ribs 21 protruding towards one side of the opening of the clamping groove, and the reinforcing ribs 21 divide the back of the PCB 2PCB into a plurality of unit areas 211.

The unit regions 211 are rectangular, and at least one heat dissipation opening 133 is formed in the range of two adjacent unit regions 211.

The unit region 211 is rectangular, polygonal, or irregular.

The positioning posts 51 and the LEDs 5 comprise LED positioning posts 51 and LEDs 5, and the LED positioning posts 51 and the LEDs 5 are distributed around the LEDs of the LED display area 3.

At least three LED positioning posts 51 and at least three LED5 are provided.

The protective layer 4 is UV three-proofing paint.

The LED display lamp is controlled by constant current which is controlled by a constant current LED driving chip.

Adopt PCB embedding shell to the back adopts the protection of UV three proofings lacquer, can save the thickness that the protection was glued, and the characteristic of UV three proofings lacquer itself can 2PCB of effectual protection PCB receive the damage of moisture, ESD simultaneously.

The LED lamp is driven by a professional constant current LED driving chip and constant current, so that the current of the LED lamp is kept stable, and the brightness of the LED lamp is stable. Meanwhile, the utilization rate of the computer is high, and the brightness is larger under the condition that the power consumption is close to 100 percent and the same power consumption.

The thickness of the digital display screen can be effectively reduced and controlled within 7 mm. The digital display screen can still effectively prevent static electricity and moisture, and the display brightness can be improved by more than 30% compared with the traditional digital display screen.

In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a digital display screen shell structure which characterized in that: the method comprises the following steps:

the shell (1) comprises a frame (12), and the frame (12) is enclosed into a clamping groove for embedding the PCB (2);

the PCB (2) is arranged in the clamping groove, an LED display area (3) is arranged on the PCB (2), and the LED display area (3) is connected with a plurality of LED display lamps in series and/or in parallel according to actual requirements;

the positioning column (5) penetrates through the PCB (2) to fix the PCB on the shell (1);

and the protective layer (4) covers the PCB (2) and seals the opening of the clamping groove.

2. A digital display screen housing structure according to claim 1, wherein: casing (1) orientation PCB board (2) are outstanding to have a plurality of thermovents (13), the thermovent protrusion forms annular chimb, be equipped with the confession on PCB board (2) the hole of stepping down that the chimb passed, the chimb with the hole of stepping down laminates each other in order to increase PCB board (2) with the area of contact of casing (1).

3. A digital display screen housing structure according to claim 2, wherein: the heat dissipation port (13) is made of heat conduction materials.

4. A digital display screen housing structure according to claim 2 or 3, wherein: PCB board (2) orientation draw-in groove open-ended one side salient has a plurality of strengthening ribs (21), strengthening rib (21) will a plurality of unit district (211) are separated into to the back of PCB board (2).

5. A digital display screen shell structure according to claim 4, wherein: the unit areas (211) are rectangular, and at least one heat dissipation opening (13) is arranged in the range of two adjacent unit areas (211).

6. A digital display screen shell structure according to claim 4, wherein: the unit area is rectangular, polygonal or special-shaped.

7. A digital display screen housing structure according to claim 1, wherein: the positioning columns (5) comprise LED positioning columns (51), and the LED positioning columns (51) are distributed around the LED display area (3).

8. A digital display screen housing structure according to claim 7, wherein: the number of the LED positioning columns (51) is at least three.

9. A digital display screen housing structure according to claim 1, wherein: the protective layer is UV three-proofing paint.

10. A digital display screen housing structure according to claim 1, wherein: the LED display lamp is controlled by constant current, and the constant current is controlled by a constant current LED driving chip.