LED dome screen with efficient heat dissipation function

Abstract

The utility model relates to an LED (light-emitting diode) dome screen with efficient heat dissipation. The LED dome screen comprises a dome screen body, a dome screen base and an air inlet pipe, the opening of the dome screen body is mounted on the dome screen base; the spherical screen base is installed on an installation base face, an inner extending table face is arranged at the end, close to the installation base face, of the spherical screen base, and a plurality of exhaust holes are formed in the inner extending table face. The spherical screen base is in a vertically-arranged barrel shape, the inward-extending table top is an annular face perpendicular to the spherical screen base, and a gap is formed between the inward-extending table top and the installation base face. The air inlet pipe is used for ventilating to the LED dome screen from the outside of the LED dome screen so as to enable the dome screen body to dissipate heat, the air outlet end of the air inlet pipe is arranged on the inner side of the arc top of the arc-shaped curved surface of the dome screen body and is provided with an air cap assembly, and the air cap assembly is used for dispersing air exhausted from the air outlet end of the air inlet pipe in the circumferential direction. According to the utility model, the air inlet pipe and the air exhaust holes are reasonably arranged in the LED dome screen, so that air exhausted by the air inlet pipe can flow through the inner side surface of the whole dome screen body, heat generated by the dome screen body is taken away, and the heat dissipation capability of the LED dome screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball screen equipment, in particular to an LED ball screen with efficient heat dissipation. Background Art

[0002] LED dome screens are commonly seen in large-scale indoor and outdoor events, concerts, stadiums and commercials. They are arc-shaped, spherical or hemispherical screens composed of many LED lights, usually composed of hundreds or thousands of LED lights, which can display images, videos and animations. Compared with projection dome screens, LED dome screens can provide excellent visual effects both during the day and at night, with higher resolution and color saturation.

[0003] Due to the excellent performance of LED ball screens, the power consumption is much higher than that of projection ball screens. Higher power consumption will generate more heat. For semicircular or spherical LED ball screens, heat dissipation is an important problem that is not easy to solve. In order to achieve high resolution and good display effects, semicircular or spherical LED ball screens usually need to densely arrange LED lamp beads in a limited space, which will cause the heat between the lamp beads to be unable to dissipate quickly, increasing the difficulty of heat dissipation; due to the special shape of semicircular or spherical LED ball screens, the internal space is relatively small, resulting in limited arrangement of heat dissipation components, and it is impossible to simply install a radiator or fan on the back like a flat LED display screen, and due to the geometric shape of the ball screen, the air circulation in the internal space is limited, which hinders the conduction and dissipation of heat.

[0004] Therefore, since it is difficult to dissipate heat inside the LED ball screen, a suitable and easy-to-use heat dissipation structure is required to ensure the normal operation and life of the LED lamp. Summary of the invention

[0005] The utility model aims to provide an LED ball screen with efficient heat dissipation. An air inlet pipe and an air outlet hole are reasonably arranged inside the LED ball screen so that the air discharged from the air inlet pipe can flow through the inner side of the entire ball screen body, thereby effectively taking away the heat generated by the ball screen body and improving the heat dissipation capacity of the LED ball screen.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An LED ball screen with efficient heat dissipation is designed, comprising a ball screen body, a ball screen base and an air inlet pipe; the ball screen body has an arc-shaped surface, and the opening of the ball screen body is installed on the ball screen base;

[0008] The ball screen base is installed on a mounting base, an inner extension table is provided on one end of the ball screen base close to the mounting base, and a plurality of exhaust holes are provided on the inner extension table; the ball screen base is in a vertically arranged cylindrical shape, the inner extension table is in a ring-shaped surface perpendicular to the ball screen base, and there is a gap between the inner extension table and the mounting base;

[0009] The air inlet pipe is used to ventilate the LED ball screen from the outside of the LED ball screen to dissipate heat from the ball screen body. The air outlet end of the air inlet pipe is arranged on the inner side of the arc top of the arc-shaped surface of the ball screen body, and is provided with a hood assembly. The hood assembly is used to disperse the air discharged from the air outlet end of the air inlet pipe in a circumferential direction. The air inlet end of the air inlet pipe is arranged on the outside of the LED ball screen, and is used to connect to the air outlet of a fan.

[0010] The air discharged from the air inlet pipe is dispersed on the inner side of the spherical screen body by the hood assembly, and then discharged from the plurality of exhaust holes of the inner extension table to the gap between the inner extension table and the installation base surface.

[0011] Optionally, the hood assembly includes a wind shield and at least two supporting columns, the air inlet duct includes an inner-ball air duct, the inner-ball air duct is vertically arranged in the internal space of the ball screen base and the ball screen body, and the air outlet is located at the end of the inner-ball air duct; the wind shield is arranged outside the end of the inner-ball air duct perpendicular to the axis of the inner-ball air duct, and there is a gap between the wind shield and the end face of the inner-ball air duct, and the wind shield is connected to the end of the inner-ball air duct through at least two of the supporting columns.

[0012] Optionally, the number of the support columns is three; the wind shield is connected to the end surface of the air duct inside the ball through the three support columns, and the three support columns are distributed in a triangular shape.

[0013] Optionally, a flared portion is provided at the end of the air duct inside the ball, the flared portion is in a cone-shaped column, and the outer end diameter of the flared portion is larger than the outer diameter of the air duct inside the ball.

[0014] Optionally, the wind shield is connected to the outer end surface of the flared portion through at least two of the support columns, and the diameter of the wind shield is larger than the diameter of the outer end of the flared portion.

[0015] Optionally, an overflow port is provided at the center of the wind shield, and the aperture of the overflow port is smaller than one quarter of the aperture of the air outlet; the overflow port is used to allow the air discharged through the air outlet to overflow to the top of the wind shield.

[0016] Optionally, the installation base is a foundation, the spherical screen base is installed on the foundation, and there is a gap between the inner extension table and the surface of the foundation;

[0017] The air discharged from the air inlet pipe is dispersed on the inner side of the spherical screen body by the hood assembly, and then discharged from the plurality of exhaust holes of the inner extension table to the gap between the inner extension table and the foundation.

[0018] Optionally, a side of the air inlet pipe close to the air inlet end is buried in the foundation, and the air inlet end of the air inlet pipe extends from the foundation to the outside of the LED ball screen.

[0019] Optionally, the LED ball screen further comprises a bottom plate, the bottom plate is arranged on the surface of the foundation, an inner support is arranged below the inner extension table, and the ball screen base is mounted on the bottom plate through the inner extension table and the inner support;

[0020] The inner support is columnar, and the outer diameter of the ball screen base is larger than the outer diameter of the inner support;

[0021] The bottom plate is provided with a through hole, and the air inlet pipe passes through the through hole of the bottom plate.

[0022] Optionally, the plurality of exhaust holes include a plurality of first exhaust holes and a plurality of second exhaust holes, and the distance between the plurality of first exhaust holes and the axis of the ball screen base is greater than the distance between the plurality of second exhaust holes and the axis of the ball screen base; the plurality of first exhaust holes and the plurality of second exhaust holes are distributed in a circular shape, and the plurality of first exhaust holes and the plurality of second exhaust holes are staggered with each other.

[0023] The utility model provides an LED ball screen with efficient heat dissipation, which has the following beneficial effects:

[0024] The LED ball screen with efficient heat dissipation has an air inlet pipe and an air exhaust hole reasonably arranged inside the LED ball screen, so that the air discharged from the air inlet pipe can flow through the inner side of the entire ball screen body, thereby effectively taking away the heat generated by the ball screen body, and improving the heat dissipation capacity of the LED ball screen; the flowing air is transported to the ball screen body through the air inlet pipe, and then the flowing air is evenly dispersed around the ball screen body through the hood assembly at the end of the air inlet pipe. The dispersed flowing air flows along the inner side of the ball screen body until it flows out from the air exhaust port on the inner extension table below the ball screen base, thereby taking away the heat generated by the ball screen body, thereby improving the comprehensive heat dissipation capacity of the LED ball screen;

[0025] Since the LED ball screen with efficient heat dissipation uses the natural flow of air to dissipate heat, there is no need to deliver high-speed wind to the air inlet duct. Low-speed wind can achieve a better heat dissipation effect, and the low-speed wind noise is small or even noiseless; and the fan can be set under the foundation outside the LED ball screen, thereby avoiding fan noise; the noise is reduced from both wind speed and fan aspects, thereby improving the user experience of using the LED ball screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the LED ball screen with efficient heat dissipation in the utility model;

[0027] Figure 2 It is a schematic diagram of the cutaway three-dimensional structure of the LED ball screen with efficient heat dissipation in the utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the LED ball screen with efficient heat dissipation in the utility model after removing the foundation;

[0029] Figure 4 This is a schematic diagram of the structure of the LED ball screen with efficient heat dissipation in the utility model after the ball screen body is removed;

[0030] Figure 5 It is a structural schematic diagram of the air inlet duct of the LED ball screen with efficient heat dissipation in the utility model.

[0031] In the figure: 1. foundation; 2. air inlet pipe; 201. air duct inside the ball; 202. flared part; 203. support column; 204. wind shield; 205. overflow outlet; 206. air outlet; 3. ball screen base; 301. inner extension table; 302. first air outlet; 303. second air outlet; 304. inner pillar; 4. ball screen body; 5. bottom plate; 6. inner support of the ball screen. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0033] See also Figures 1 to 4 , the utility model provides a technical solution: an LED ball screen with efficient heat dissipation, including a ball screen body 4, a ball screen base 3 and an air inlet pipe 2;

[0034] The ball screen body 4 has an arc-shaped surface, and the opening of the ball screen body 4 is mounted on the ball screen base 3;

[0035] The ball screen base 3 is installed on a mounting base surface, and an inner extension table 301 is provided at one end of the ball screen base 3 close to the mounting base surface, and a plurality of exhaust holes are provided on the inner extension table 301; the ball screen base 3 is in a vertically arranged cylindrical shape, and the inner extension table 301 is in a ring surface perpendicular to the ball screen base 3, and there is a gap between the inner extension table 301 and the mounting base surface;

[0036] The air inlet pipe 2 is used to ventilate the LED ball screen from the outside of the LED ball screen to dissipate heat from the ball screen body 4. The air outlet end of the air inlet pipe 2 is arranged on the inner side of the arc top of the arc surface of the ball screen body 4, and is provided with a hood assembly. The hood assembly is used to disperse the air discharged from the air outlet end of the air inlet pipe 2 in a circumferential direction. The air inlet end of the air inlet pipe 2 is arranged outside the LED ball screen and is used to connect to an air outlet 206 of a fan.

[0037] The air discharged from the air inlet pipe 2 is dispersed on the inner side of the spherical screen body 4 through the hood assembly, and then discharged from the multiple exhaust holes of the inner extension table 301 to the gap between the inner extension table 301 and the installation base.

[0038] The air inlet pipe 2 and the air outlet holes are reasonably arranged inside the LED ball screen, so that the air discharged from the air inlet pipe 2 can flow through the inner side of the entire ball screen body 4, thereby effectively taking away the heat generated by the ball screen body 4 and improving the heat dissipation capacity of the LED ball screen.

[0039] In this embodiment, as a preference, the ball screen body 4 is installed on the ball screen base 3 through the ball screen inner support 6. The ball screen inner support 6 is a semicircular structure. The bottom of the ball screen inner support 6 is detachably connected to the inner wall of the ball screen base 3. The ball screen inner support 6 includes a frame. The frame is a semicircular mesh structure. The ball screen body 4 is installed on the ball screen inner support 6.

[0040] Generally speaking, the ball screen body 4 is composed of a plurality of small screens or lamp beads, and the plurality of small screens or lamp beads are installed on the framework of the ball screen inner support 6.

[0041] In this embodiment, preferably, the hood assembly includes a wind shield 204 and at least two supporting columns 203, the air inlet duct 2 includes an inner-spherical air duct 201, the inner-spherical air duct 201 is vertically arranged in the internal space of the spherical screen base 3 and the spherical screen body 4, and the air outlet 206 is located at the end of the inner-spherical air duct 201; the wind shield 204 is arranged outside the end of the inner-spherical air duct 201 perpendicular to the axis of the inner-spherical air duct 201, and there is a gap between the wind shield 204 and the end face of the inner-spherical air duct 201, and the wind shield 204 is connected to the end of the inner-spherical air duct 201 through at least two supporting columns 203.

[0042] The flowing air is delivered to the ball screen body 4 through the air inlet pipe 2, and then the flowing air is evenly dispersed around the ball screen body 4 through the hood assembly at the end of the air inlet pipe 2. The dispersed flowing air flows along the inner side of the ball screen body 4 until it flows out from the exhaust port of the inner extension table 301 below the ball screen base 3, thereby taking away the heat generated by the ball screen body 4, thereby improving the comprehensive heat dissipation capacity of the LED ball screen.

[0043] In this embodiment, preferably, the number of the support columns 203 is three; the wind shield 204 is connected to the end surface of the air duct 201 inside the ball through the three support columns 203, and the three support columns 203 are distributed in a triangle.

[0044] In this embodiment, as a preference, a flared portion 202 is provided at the end of the air duct 201 inside the ball. The flared portion 202 is in a cone-shaped column, and the outer end diameter of the flared portion 202 is larger than the outer diameter of the air duct 201 inside the ball.

[0045] In this embodiment, preferably, the wind shield plate 204 is connected to the outer end surface of the flared portion 202 through at least two support columns 203 , and the diameter of the wind shield plate 204 is greater than the outer end diameter of the flared portion 202 .

[0046] In this embodiment, preferably, an overflow port 205 is opened at the center of the wind shield 204 , and the aperture of the overflow port 205 is smaller than one quarter of the aperture of the air outlet 206 ; the overflow port 205 is used to allow the air exhausted through the air outlet 206 to overflow to the top of the wind shield 204 .

[0047] In this embodiment, as a preference, the installation base surface is the foundation 1, the ball screen base 3 is installed on the foundation 1, and there is a gap between the inner extension table 301 and the surface of the foundation 1;

[0048] The air discharged from the air inlet pipe 2 is dispersed on the inner side of the spherical screen body 4 through the hood assembly, and then discharged from the multiple exhaust holes of the inner extension table 301 to the gap between the inner extension table 301 and the foundation 1 .

[0049] Since the LED ball screen with efficient heat dissipation utilizes the natural flow of air to dissipate heat, there is no need to deliver high-speed wind to the air inlet pipe 2. Low-speed wind can achieve a better heat dissipation effect, and the low-speed wind noise is small or even no noise; and the fan can be set under the foundation 1 outside the LED ball screen, thereby avoiding fan noise.

[0050] In this embodiment, preferably, one side of the air inlet pipe 2 close to the air inlet end is buried in the foundation 1, and the air inlet end of the air inlet pipe 2 extends from the foundation 1 to the outside of the LED ball screen.

[0051] In this embodiment, as a preference, the LED ball screen further comprises a bottom plate 5, the bottom plate 5 is arranged on the surface of the foundation 1, an inner support 304 is arranged below the inner extension table 301, and the ball screen base 3 is installed on the bottom plate 5 through the inner extension table 301 and the inner support 304;

[0052] The inner support 304 is columnar, and the outer diameter of the ball screen base 3 is larger than the outer diameter of the inner support 304;

[0053] The bottom plate 5 is provided with a through hole, and the air inlet pipe 2 passes through the through hole of the bottom plate 5 .

[0054] In the present embodiment, preferably, the plurality of exhaust holes include a plurality of first exhaust holes 302 and a plurality of second exhaust holes 303, and the distance between the plurality of first exhaust holes 302 and the axis of the ball screen base 3 is greater than the distance between the plurality of second exhaust holes 303 and the axis of the ball screen base 3; the plurality of first exhaust holes 302 and the plurality of second exhaust holes 303 are both distributed in a circular shape, and the plurality of first exhaust holes 302 and the plurality of second exhaust holes 303 are staggered with each other.

[0055] In summary, the LED ball screen with efficient heat dissipation reasonably arranges the air inlet pipe 2 and the exhaust holes inside the LED ball screen, and the air discharged from the air inlet pipe 2 is evenly dispersed to the surroundings through the hood assembly, so that it can flow through the inner side of the entire ball screen body 4, thereby effectively taking away the heat generated by the ball screen body 4 and improving the heat dissipation capacity of the LED ball screen.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED ball screen with efficient heat dissipation, characterized by: It comprises a ball screen body (4), a ball screen base (3) and an air inlet pipe (2); The spherical screen body (4) has an arc-shaped curved surface, and the opening of the spherical screen body (4) is mounted on the spherical screen base (3); The ball screen base (3) is mounted on a mounting base surface; an inner extension table surface (301) is arranged at one end of the ball screen base (3) close to the mounting base surface; a plurality of exhaust holes are provided on the inner extension table surface (301); the ball screen base (3) is in the shape of a vertically arranged cylinder; the inner extension table surface (301) is in the shape of an annular surface perpendicular to the ball screen base (3); and a gap is provided between the inner extension table surface (301) and the mounting base surface; The air inlet pipe (2) is used to ventilate the LED ball screen from the outside of the LED ball screen to dissipate heat from the ball screen body (4); the air outlet end of the air inlet pipe (2) is arranged on the inner side of the arc top of the arc-shaped surface of the ball screen body (4), and is provided with a hood assembly, and the hood assembly is used to disperse the air discharged from the air outlet end of the air inlet pipe (2) in a circumferential direction; the air inlet end of the air inlet pipe (2) is arranged on the outside of the LED ball screen, and is used to connect to an air outlet (206) of a fan; The air discharged from the air inlet pipe (2) is dispersed on the inner side of the spherical screen body (4) through the hood assembly, and then discharged from the plurality of exhaust holes of the inner extension table (301) to the gap between the inner extension table (301) and the installation base surface.

2. The LED ball screen with high efficiency heat dissipation according to claim 1, characterized in that: The hood assembly comprises a wind shield (204) and at least two supporting columns (203); the air inlet pipe (2) comprises an inner-ball wind pipe (201); the inner-ball wind pipe (201) is vertically arranged in the internal space of the ball screen base (3) and the ball screen body (4); the air outlet (206) is located at the end of the inner-ball wind pipe (201); the wind shield (204) is arranged outside the end of the inner-ball wind pipe (201) perpendicular to the axis of the inner-ball wind pipe (201), and there is a gap between the wind shield (204) and the end surface of the inner-ball wind pipe (201); the wind shield (204) is connected to the end of the inner-ball wind pipe (201) through at least two supporting columns (203).

3. The LED ball screen with high efficiency heat dissipation according to claim 2, characterized in that: The number of the support columns (203) is three; the wind shield (204) is connected to the end surface of the air duct (201) inside the sphere via the three support columns (203), and the three support columns (203) are distributed in a triangular shape.

4. The LED ball screen with high efficiency heat dissipation according to claim 2, characterized in that: The end of the air duct (201) inside the ball is provided with a flared portion (202), the flared portion (202) is in a cone-shaped column, and the outer end diameter of the flared portion (202) is larger than the outer diameter of the air duct (201) inside the ball.

5. The LED ball screen with high efficiency heat dissipation according to claim 4, characterized in that: The wind shield (204) is connected to the outer end surface of the flared portion (202) via at least two of the support columns (203), and the diameter of the wind shield (204) is greater than the outer end diameter of the flared portion (202).

6. The LED ball screen with high heat dissipation according to claim 2, characterized in that: An overflow port (205) is provided at the center of the wind shield (204), and the aperture of the overflow port (205) is smaller than one quarter of the aperture of the air outlet (206); the overflow port (205) is used to allow the air discharged through the air outlet (206) to overflow to the top of the wind shield (204).

7. The LED ball screen with high heat dissipation according to claim 1, characterized in that: The installation base surface is a foundation (1), the spherical screen base (3) is installed on the foundation (1), and there is a gap between the inner extension table surface (301) and the surface of the foundation (1); The air discharged from the air inlet pipe (2) is dispersed on the inner side of the spherical screen body (4) through the hood assembly, and then discharged from the plurality of exhaust holes of the inner extension table (301) to the gap between the inner extension table (301) and the foundation (1).

8. The LED ball screen with high heat dissipation according to claim 7, characterized in that: The side of the air inlet pipe (2) close to the air inlet end is buried in the foundation (1), and the air inlet end of the air inlet pipe (2) extends from the foundation (1) to the outside of the LED ball screen.

9. The LED ball screen with high heat dissipation according to claim 7, characterized in that: The LED ball screen also includes a bottom plate (5), the bottom plate (5) is arranged on the surface of the foundation (1), an inner support column (304) is arranged below the inner extension table (301), and the ball screen base (3) is installed on the bottom plate (5) through the inner extension table (301) and the inner support column (304); The inner support (304) is columnar, and the outer diameter of the spherical screen base (3) is greater than the outer diameter of the inner support (304); The bottom plate (5) is provided with a through hole, and the air inlet pipe (2) passes through the through hole of the bottom plate (5).

10. The LED ball screen with high heat dissipation according to claim 7, characterized in that: The plurality of exhaust holes include a plurality of first exhaust holes (302) and a plurality of second exhaust holes (303); the distance between the plurality of first exhaust holes (302) and the axis of the ball screen base (3) is greater than the distance between the plurality of second exhaust holes (303) and the axis of the ball screen base (3); the plurality of first exhaust holes (302) and the plurality of second exhaust holes (303) are both distributed in a circular pattern, and the plurality of first exhaust holes (302) and the plurality of second exhaust holes (303) are arranged in an interlaced manner.

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