A high-performance COB display with double-layer packaging protection

Abstract

The utility model discloses a high-performance COB display screen with double-layer packaging protection, belonging to the technical field of display screens. A high-performance COB display screen with double-layer packaging protection comprises a shell and a main screen installed in a mounting groove on the shell, and also comprises a heat dissipation groove arranged at the inner bottom of the mounting groove, wherein the exhaust end of the heat dissipation groove faces the front end surface of the main screen, and the inner bottom of the shell is provided with a positive pressure component for supplying air to the heat dissipation groove; the utility model can effectively dissipate the heat of the main screen on the one hand, and on the other hand, can also blow off part of the dust accumulated on the main screen to maintain the display effect of the main screen.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a high-performance COB display screen with double-layer packaging protection. Background Art

[0002] COB display is a display that uses advanced LED packaging technology, which is different from the traditional SMD surface mount packaging technology. In COB technology, the LED light-emitting chip is directly integrated and packaged on the PCB, rather than being soldered on the PCB as a separate component. This technology brings many advantages, and the display that uses double-layer packaging technology can significantly improve the stability and durability of the display.

[0003] Although double-layer packaging technology can improve the stability and durability of the display, it may also increase the thermal resistance of the display, that is, the resistance encountered by heat in the process of transferring from the LED chip to the external environment; thus, heat will accumulate inside the package, thereby affecting the heat dissipation efficiency of the LED chip. Utility Model Content

[0004] The utility model aims to solve the problem of poor heat dissipation effect of a display screen using a double-layer packaging technology in the prior art, and proposes a high-performance COB display screen with double-layer packaging protection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-performance COB display screen with double-layer packaging protection comprises a shell and a main screen installed in a mounting groove on the shell, and also comprises a heat dissipation groove arranged at the inner bottom of the mounting groove, wherein the exhaust end of the heat dissipation groove faces the front end surface of the main screen, and the inner bottom of the shell is provided with a positive pressure component for supplying air to the heat dissipation groove.

[0007] In order to allow the heat dissipation slot to be continuously exhausted, preferably, the positive pressure component includes a device slot arranged in the outer shell, and an air inlet slot is provided at the lower end of the outer shell, wherein a cooling fan is fixedly installed in the air inlet slot, and the output end of the cooling fan extends into the device slot, and the device slot is connected with the heat dissipation slot through a connecting slot.

[0008] In order to prevent dust from entering the air inlet slot, a filter plate is further installed at the lower port of the air inlet slot.

[0009] In order to allow the filter plate to swing, further, the inner wall of the air inlet slot is rotatably installed with a tilted hollow plate through a rotating rod, the filter plate is installed on the lower end surface of the hollow plate, and the inner wall of the air inlet slot is fixedly connected with an upper baffle plate and a lower baffle plate aligned up and down, wherein the movable end of the hollow plate is tilted on the lower baffle plate, and a vibration part is provided at the upper end of the hollow plate, and when the cooling fan is started and turned off, the vibration part causes the hollow plate to vibrate.

[0010] In order to automatically clean the filter plate, further, the vibration part includes a roller arranged on the upper end of the hollow plate, and the outer wall of the roller is provided with a plurality of convex blocks distributed in a circumference.

[0011] In order to guide the roller, further, two symmetrically arranged guide rods are fixedly connected to the hollow plate, and two symmetrically arranged annular grooves are provided on the roller, and the upper ends of the two guide rods are respectively arranged in the two annular grooves.

[0012] In order to facilitate the removal of the filter plate, further, both ends of the filter plate are fixedly connected with bar magnets, and the two bar magnets are adsorbed on both sides of the hollow plate.

[0013] In order to prevent dust from entering the heat dissipation slot, preferably, a dustproof plate is fixedly installed in the upper port of the heat dissipation slot, and an air outlet is provided on the dustproof plate.

[0014] Compared with the prior art, the utility model provides a high-performance COB display screen with double-layer packaging protection, which has the following beneficial effects:

[0015] 1. The high-performance COB display screen with double-layer packaging protection continuously exhausts air into the heat sink through the cooling fan, and the heat sink continuously exhausts air to the front face of the main screen through the upper port. On the one hand, it can effectively dissipate the heat of the main screen, and on the other hand, it can also blow off some of the dust accumulated on the main screen to maintain the display effect of the main screen.

[0016] 2. For the high-performance COB display screen protected by double-layer packaging, when the cooling fan is turned off, the hollow plate will swing downward, and the roller will make the hollow plate and the filter plate vibrate, so that some dust on the filter plate can be shaken off to complete the automatic cleaning of the filter plate.

[0017] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. On the one hand, the utility model can effectively dissipate the heat of the main screen, and on the other hand, it can also blow off some dust accumulated on the main screen to maintain the display effect of the main screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the isometric structure of a high-performance COB display screen with double-layer packaging protection proposed by the utility model;

[0019] Figure 2 This is a partial isometric structural diagram of a high-performance COB display screen with double-layer packaging protection proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of a partially cutaway axonometric structure of a high-performance COB display screen with double-layer packaging protection proposed by the utility model;

[0021] Figure 4 A high-performance COB display screen with double-layer packaging protection proposed by the utility model Figure 3 Schematic diagram of the structure of part A;

[0022] Figure 5 This is a schematic diagram of the main view of a partial cross-section structure of a high-performance COB display screen with double-layer packaging protection proposed by the utility model;

[0023] Figure 6 A high-performance COB display screen with double-layer packaging protection proposed by the utility model Figure 5 Schematic diagram of the structure of part B;

[0024] Figure 7 A high-performance COB display screen with double-layer packaging protection proposed by the utility model Figure 5 Schematic diagram of the structure of part C;

[0025] Figure 8 This is a schematic diagram of the axonometric structure of a hollow plate of a high-performance COB display screen with double-layer packaging protection proposed by the utility model.

[0026] Figure symbols: 1. Shell; 2. Installation slot; 3. Main screen; 4. Heat dissipation slot; 5. Device slot; 6. Connecting slot; 7. Air inlet slot; 8. Dustproof plate; 9. Cooling fan; 10. Rotating rod; 11. Hollow plate; 12. Filter plate; 13. Lower baffle; 14. Upper baffle; 15. Roller; 16. Bump; 17. Guide rod; 18. Annular groove; 19. Bar magnet. DETAILED DESCRIPTION

[0027] The following embodiments are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Example:

[0030] Reference Figure 1-Figure 8 The embodiment of the utility model provides a high-performance COB display screen with double-layer packaging protection, including a shell 1 and a main screen 3 installed in a mounting groove 2 on the shell 1, and also includes: a heat dissipation groove 4 for blowing air upward, which is arranged at the inner bottom of the mounting groove 2, wherein the exhaust end of the heat dissipation groove 4 faces the front end surface of the main screen 3, and the inner bottom of the shell 1 is provided with a positive pressure component for supplying air to the heat dissipation groove 4.

[0031] Specifically, when in use, the positive pressure component will continuously exhaust air into the heat dissipation slot 4, and the heat dissipation slot 4 will continuously exhaust air to the front end surface of the main screen 3 through the upper port. On the one hand, it can effectively dissipate the heat of the main screen 3, and on the other hand, it can also blow off some dust accumulated on the main screen 3 to maintain the display effect of the main screen 3.

[0032] The positive pressure component in the high-performance COB display screen with double-layer packaging protection includes a device slot 5 arranged in the outer shell 1, and an air inlet slot 7 is provided at the lower end of the outer shell 1, wherein a cooling fan 9 is fixedly installed in the air inlet slot 7, and the output end of the cooling fan 9 extends into the device slot 5, and the device slot 5 is connected with the heat dissipation slot 4 through a connecting slot 6.

[0033] Specifically, when in use, start the cooling fan 9, the cooling fan 9 will absorb air through the lower port of the air inlet slot 7, and then discharge it into the heat dissipation slot 4 through the upper port of the device slot 5, and finally blow it from the upper port of the heat dissipation slot 4 to the front end surface of the main screen 3 to complete the heat dissipation and dust removal work; in the prior art, since the driver of the display screen is also installed at its bottom, the driver of the display screen can also dissipate heat to further improve the heat dissipation effect of the display screen.

[0034] A filter plate 12 is installed at the lower port of the air inlet slot 7. When the air inlet slot 7 absorbs air through the lower port, the filter plate 12 in the lower port of the air inlet slot 7 can filter out dust in the air to prevent dust from contaminating the heat sink 4 and the heat dissipation fan 9.

[0035] The inner wall of the air inlet slot 7 is rotatably installed with an inclined hollow plate 11 through a rotating rod 10, and the hollow plate 11 is provided with a ventilation mesh, and a filter plate 12 is installed on the lower end surface of the hollow plate 11. The inner wall of the air inlet slot 7 is fixedly connected with an upper baffle plate 14 and a lower baffle plate 13 aligned up and down, wherein the movable end of the hollow plate 11 is inclinedly arranged on the lower baffle plate 13, and a vibration part is provided at the upper end of the hollow plate 11. When the cooling fan 9 is started and turned off, the vibration part causes the hollow plate 11 to vibrate.

[0036] Specifically, when the cooling fan 9 is turned on, an upward airflow will be generated in the air inlet slot 7. At this time, the filter plate 12 will drive the movable end of the hollow plate 11 to swing upward under the action of the airflow. At this time, the positive pressure of the airflow is much greater than the weight of the hollow plate 11, until it is pressed against the upper baffle 14. In time, the movable end of the hollow plate 11 will tilt upward. During the swinging, the hollow plate 11 will drive the rotating rod 10 to rotate, and the vibration part will cause the hollow plate 11 and the filter plate 12 to vibrate. When the cooling fan 9 is turned off, the hollow plate 11 is no longer affected by the air pressure and swings downward to reset. During the swinging, the vibration part will cause the hollow plate 11 and the filter plate 12 to vibrate again, thereby shaking off some of the dust on the filter plate 12 to complete the automatic cleaning work of the filter plate 12.

[0037] The vibration part includes a roller 15 arranged at the upper end of the hollow plate 11, and the outer wall of the roller 15 is provided with a plurality of circumferentially distributed protrusions 16, and the number of the protrusions 16 is 6; therefore, when the hollow plate 11 is tilted, the roller 15 will roll from the highest end to the lowest end of the hollow plate 11, and during the rolling, the protrusions 16 on the outer wall of the roller 15 will hit the hollow plate 11, causing the hollow plate 11 to vibrate, thereby causing the filter plate 12 to vibrate, and part of the filter plate 12 will be shaken off, so as to achieve the effect of automatically cleaning the filter plate 12.

[0038] Two symmetrically arranged guide rods 17 are fixedly connected to the above-mentioned hollow plate 11, and two symmetrically arranged annular grooves 18 are provided on the roller 15. The upper ends of the two guide rods 17 are respectively arranged in the two annular grooves 18. During the rolling of the roller 15, the two annular grooves 18 of the roller 15 will be stuck in the two guide rods 17, so as to prevent the roller 15 from being skewed in position, thereby completing the guiding work of the roller 15.

[0039] Both ends of the filter plate 12 are fixedly connected with bar magnets 19, and the two bar magnets 19 are adsorbed on both sides of the hollow plate 11. The material of the hollow plate 11 is iron plate or stainless steel. During use, the filter plate 12 can be adsorbed on the hollow plate 11 through the bar magnets 19 on both sides. When the filter plate 12 needs to be replaced or cleaned, the bar magnets 19 can be removed from the hollow plate 11, thereby facilitating the disassembly of the filter plate 12.

[0040] A dustproof plate 8 is fixedly installed in the upper port of the heat dissipation slot 4. The dustproof plate 8 is provided with an air outlet. The dustproof plate 8 can prevent dust from entering the interior of the heat dissipation slot 4 from the upper port.

[0041] Although the present invention is disclosed through the above embodiments, the scope of the present invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the present invention.

Claims

1. A high-performance COB display screen with double-layer packaging protection, comprising a housing (1) and a main screen (3) installed in a mounting groove (2) on the housing (1), characterized in that: It also includes a heat dissipation groove (4) arranged on the inner bottom of the installation groove (2). The exhaust end of the heat dissipation groove (4) faces the front end surface of the main screen (3), and the inner bottom of the housing (1) is provided with a positive pressure component for supplying air to the heat dissipation groove (4).

2. A high-performance COB display screen with double-layer packaging protection according to claim 1, characterized in that: The positive pressure component comprises a device slot (5) arranged in the housing (1), and an air inlet slot (7) is provided at the lower end of the housing (1). A heat dissipation fan (9) is fixedly installed in the air inlet slot (7), and the output end of the heat dissipation fan (9) extends into the device slot (5), and the device slot (5) is connected to the heat dissipation slot (4) through the connecting slot (6).

3. A high-performance COB display screen with double-layer packaging protection according to claim 2, characterized in that: A filter plate (12) is installed at the lower end of the air inlet slot (7).

4. A high-performance COB display screen with double-layer packaging protection according to claim 3, characterized in that: The inner wall of the air inlet slot (7) is rotatably mounted with an inclined hollow plate (11) via a rotating rod (10); the filter plate (12) is mounted on the lower end surface of the hollow plate (11); the inner wall of the air inlet slot (7) is fixedly connected with an upper baffle plate (14) and a lower baffle plate (13) aligned up and down; The movable end of the hollow plate (11) is arranged obliquely on the lower baffle (13), and a vibration part is provided at the upper end of the hollow plate (11). When the cooling fan (9) is started and shut down, the vibration part causes the hollow plate (11) to vibrate.

5. A high-performance COB display screen with double-layer packaging protection according to claim 4, characterized in that: The vibration part comprises a roller (15) arranged at the upper end of the hollow plate (11), and the outer wall of the roller (15) is provided with a plurality of convex blocks (16) distributed in a circumference.

6. A high-performance COB display screen with double-layer packaging protection according to claim 5, characterized in that: The hollow plate (11) is fixedly connected to two symmetrically arranged guide rods (17), the roller (15) is provided with two symmetrically arranged annular grooves (18), and the upper ends of the two guide rods (17) are respectively arranged in the two annular grooves (18).

7. The high-performance COB display screen with double-layer packaging protection according to claim 4, characterized in that: Both ends of the filter plate (12) are fixedly connected with bar magnets (19), and the two bar magnets (19) are adsorbed on both sides of the hollow plate (11).

8. The high-performance COB display screen with double-layer packaging protection according to claim 1, characterized in that: A dustproof plate (8) is fixedly installed in the upper port of the heat dissipation slot (4), and an air outlet is provided on the dustproof plate (8).

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