Heat dissipation structure of outdoor LED display screen

Abstract

The utility model relates to the technical field of heat dissipation of display screens, and discloses a heat dissipation structure of an outdoor LED display screen, which comprises a rear sealing plate, the rear sealing plate is mounted on a rear cover of the LED display screen, a heat dissipation window is arranged on the end face, in contact with the LED display screen, of the rear sealing plate, heat dissipation holes of the rear cover are covered with the heat dissipation window, a heat dissipation space is arranged in the rear sealing plate, and heat dissipation holes are formed in the heat dissipation space. A plurality of bottom heat dissipation holes are formed in the bottom of the rear sealing plate, the heat dissipation window communicates with the top of the heat dissipation space, and the bottom heat dissipation holes communicate with the bottom of the heat dissipation space; when the display screen needs to be used in an outdoor environment, the heat dissipation structure is installed on the display screen, the heat dissipation holes of the display screen are sealed through the rear sealing plate, water vapor or dust is prevented from entering the display screen through the heat dissipation holes, and heat generated by the display screen is discharged through the heat dissipation window, the heat dissipation space and the bottom heat dissipation holes; the sealing performance of the LED display screen is improved on the premise that heat dissipation is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen heat dissipation, in particular to a heat dissipation structure of an outdoor LED display screen. Background Art

[0002] LED display screens are composed of small LED module panels, and are used to display various information such as text, images, and videos. LED display screens are widely used in commercial media, cultural performance markets, stadiums, information dissemination, news releases, securities trading, etc., and can meet the needs of different environments. Some existing LED display screens are used outdoors, or they need to be moved outdoors temporarily. However, the heat dissipation holes of current LED display screens are basically set on the back cover, causing outdoor dust or water vapor to enter the display screen through the heat dissipation holes, causing short circuits or damage. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a heat dissipation structure for an outdoor LED display screen, which improves the sealing performance of the LED display screen without affecting the heat dissipation.

[0004] The purpose of the utility model is achieved through the following technical solutions: a heat dissipation structure of an outdoor LED display screen, comprising a rear sealing plate, the rear sealing plate is installed on the rear cover of the LED display screen, a heat dissipation window is provided on the end face of the rear sealing plate contacting the LED display screen, the heat dissipation window covers the heat dissipation holes of the rear cover, a heat dissipation space is provided inside the rear sealing plate, a plurality of bottom heat dissipation holes are provided at the bottom of the rear sealing plate, the heat dissipation window is connected to the top of the heat dissipation space, and the bottom heat dissipation holes are connected to the bottom of the heat dissipation space.

[0005] Furthermore, it also includes a clamping piece, a plurality of the clamping pieces are arranged at the bottom of the rear sealing plate, and the plurality of the clamping pieces are arranged at intervals along the length direction of the rear sealing plate, the clamping piece includes a transverse piece and a vertical piece, the transverse piece is fixedly connected to the vertical piece to form an L shape, the transverse piece is slidably connected to the rear sealing plate, a clamping space is formed between the vertical piece and the rear sealing plate, and the transverse piece adjusts the size of the clamping space by sliding.

[0006] Furthermore, the transverse piece is provided with a strip groove running through it along its thickness direction, and the strip groove extends toward the length direction of the transverse piece. A limiting column is fixed at the bottom of the rear sealing plate, and the limiting column passes through the strip groove to fix a limiting disk, and the diameter of the limiting disk is greater than the width of the strip groove.

[0007] Furthermore, a sheet rack is fixed on one side of the transverse sheet, the sheet rack is meshed with a gear, and the gear is installed at the bottom of the rear sealing plate.

[0008] Furthermore, a screw is coaxially fixed to the gear, the screw is threadedly connected to the bottom of the rear sealing plate, and the axial thickness of the gear is greater than the thickness of the thin-sheet rack.

[0009] Furthermore, an end of the gear away from the screw rod is provided with a hexagonal socket.

[0010] Furthermore, an elastic pad is fixed to the end surface of the vertical piece close to the rear sealing plate.

[0011] Furthermore, an elastic sealing layer is fixed to the end surface of the rear sealing plate contacting the LED display screen, and the elastic sealing layer is provided with four groups, and the four groups of the elastic sealing layers are connected to form a ring around the heat dissipation window.

[0012] Furthermore, a reinforcing plate is provided on the end face of the rear sealing plate away from the heat dissipation window, and the reinforcing plate has the freedom to move along the height direction of the rear sealing plate. A transverse clip is fixed on the top of the reinforcing plate, and a vertical clip is fixed on the bottom of the transverse clip away from one end of the reinforcing plate.

[0013] Furthermore, the reinforcing sheet is provided with a vertical groove along its thickness direction, the reinforcing sheet is connected to the rear sealing plate via screws, and the tail of the screw passes through the vertical groove and is threadedly adapted to the rear sealing plate.

[0014] The beneficial effects of the utility model are:

[0015] When the display screen needs to be used in an outdoor environment, a heat dissipation structure is installed on the display screen, and the heat dissipation holes of the display screen are sealed through the rear sealing plate to prevent water vapor or dust from entering the display screen through the heat dissipation holes. The heat generated by the display screen is discharged through the heat dissipation window, heat dissipation space and bottom heat dissipation holes, thereby improving the sealing performance of the LED display screen without affecting the heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the heat dissipation structure of an outdoor LED display screen of the utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the internal structure of a heat dissipation structure of an outdoor LED display screen of the utility model;

[0018] Figure 3 This is a schematic diagram of the heat dissipation structure of an outdoor LED display screen of the utility model. Figure 2 ;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the heat dissipation structure of an outdoor LED display screen of the utility model. Figure 3 ;

[0021] In the figure, 1-rear sealing plate, 2-heat dissipation window, 3-bottom heat dissipation hole, 4-heat dissipation space, 5-horizontal plate, 6-vertical plate, 7-strip groove, 8-limiting column, 9-limiting plate, 10-thin rack, 11-gear, 12-screw, 13-hexagonal groove, 14-elastic pad, 15-elastic sealing layer, 16-reinforcement plate, 17-horizontal clamp, 18-vertical clamp, 19-vertical groove, 20-screw. DETAILED DESCRIPTION

[0022] like Figures 1 to 5 As shown, a heat dissipation structure of an outdoor LED display screen includes a rear sealing plate 1, which is installed on the rear cover of the LED display screen. A heat dissipation window 2 is provided on the end surface of the rear sealing plate 1 that contacts the LED display screen, and the heat dissipation window 2 covers the heat dissipation holes of the rear cover. A heat dissipation space 4 is provided in the rear sealing plate 1, and a plurality of bottom heat dissipation holes 3 are provided at the bottom of the rear sealing plate 1. The heat dissipation window 2 is connected to the top of the heat dissipation space 4, and the bottom heat dissipation holes 3 are connected to the bottom of the heat dissipation space 4. When the display screen needs to be used in an outdoor environment, or when the use environment is humid and dusty, the heat dissipation structure is installed on the display screen, and the heat dissipation holes of the display screen are sealed by the rear sealing plate 1 to prevent water vapor or dust from passing through the heat dissipation holes. After entering the display screen, the heat generated by the display screen is discharged through the heat dissipation window 2, the heat dissipation space 4 and the bottom heat dissipation holes 3. The external water vapor and dust are not easy to enter from the bottom heat dissipation holes 3. At the same time, the setting of the heat dissipation space 4 prolongs the flow path, making it difficult for the external water vapor and dust to be discharged from the heat dissipation window 2 through the heat dissipation space 4, and also making it difficult for the external water vapor and dust to enter the display screen through the heat dissipation holes, thereby improving the sealing performance of the LED display screen without affecting the heat dissipation. In specific implementation, heat dissipation fins can be installed on the rear sealing plate 1 to enhance the heat dissipation effect, and the display screen can be waterproof, dustproof and heat dissipation enhanced without causing damage or changes to the display screen.

[0023] Furthermore, if Figure 1 As shown, an elastic sealing layer 15 is fixed to the end face of the rear sealing plate 1 contacting the LED display screen, and four groups of elastic sealing layers 15 are provided. The four groups of elastic sealing layers 15 are connected to form a ring around the heat dissipation window 2. After the rear sealing plate 1 is installed, the elastic sealing layer 15 contacts the back cover of the display screen in a compressed state, and the elastic sealing layer 15 strengthens the sealing strength between the rear sealing plate 1 and the display screen, so that water vapor and dust cannot enter the display screen through the heat dissipation window 2.

[0024] Furthermore, if Figures 1 to 3As shown, it also includes a clamping member. A plurality of clamping members are arranged at the bottom of the rear sealing plate 1. The plurality of clamping members are arranged at intervals along the length direction of the rear sealing plate 1. The clamping member includes a horizontal piece 5 and a vertical piece 6. The horizontal piece 5 and the vertical piece 6 are fixedly connected to form an L shape. The horizontal piece 5 is slidably connected to the rear sealing plate 1. A clamping space is formed between the vertical piece 6 and the rear sealing plate 1. The horizontal piece 5 adjusts the size of the clamping space by sliding. The heat dissipation structure is installed on the back cover of the display screen through the clamping member. The clamping member is clamped at the bottom of the display screen. The vertical piece 6 contacts the bottom of the front end surface of the display screen. By sliding the horizontal piece 5, the size of the clamping space is adjusted to adapt to the width of the display screen, so that the rear sealing plate 1 and the vertical piece 6 respectively contact the rear end surface and the front end surface of the display screen, thereby the rear sealing plate 1 can be detachably installed on the display screen.

[0025] Furthermore, if Figures 1 to 4 As shown, the transverse piece 5 is provided with a strip groove 7 along its thickness direction, and the strip groove 7 extends toward the length direction of the transverse piece 5. A limiting column 8 is fixed to the bottom of the rear sealing plate 1, and the limiting column 8 passes through the strip groove 7 to fix a limiting disk 9. The diameter of the limiting disk 9 is larger than the width of the strip groove 7. The limiting column 8 cooperates with the strip groove 7 to achieve sliding adaptation between the transverse piece 5 and the rear sealing plate 1, and the limiting disk 9 prevents the transverse piece 5 from detaching from the rear sealing plate 1.

[0026] Furthermore, if Figure 3 and Figure 4 As shown, a thin-sheet rack 10 is fixed to one side of the transverse plate 5, and the thin-sheet rack 10 is meshed with a gear 11, which is installed at the bottom of the rear sealing plate 1. A screw 12 is coaxially fixed to the gear 11, and the screw 12 is threadedly connected to the bottom of the rear sealing plate 1. The axial thickness of the gear 11 is greater than the thickness of the thin-sheet rack 10. An inner hexagonal groove 13 is provided at one end of the gear 11 away from the screw 12. A hexagonal wrench acts on the inner hexagonal groove 13 to drive the screw 12 and the gear 11 to rotate. The screw 12 is rotated The gear 11 moves in a forward manner, so that the gear 11 has a linear movement and a rotational movement. Since the axial thickness of the gear 11 is greater than the thickness of the thin-sheet rack 10, it is ensured that the gear 11 can always mesh with the thin-sheet rack 10. The gear 11 drives the thin-sheet rack 10 to move, and the thin-sheet rack 10 drives the horizontal piece 5 to move, thereby adjusting the position of the vertical piece 6, so that the vertical piece 6 and the rear sealing plate 1 are pressed against the front and rear end surfaces of the display screen, and the screw 12 is used to lock the position of the horizontal piece 5 and the vertical piece 6 to ensure the installation stability of the heat dissipation structure.

[0027] Furthermore, if Figure 2 As shown, an elastic pad 14 is fixed to the end surface of the vertical piece 6 close to the rear sealing plate 1, and the display screen is contacted through the elastic pad 14, so as not to cause extrusion damage to the display screen.

[0028] Furthermore, if Figure 1 , Figure 3 and Figure 5As shown, a reinforcing sheet 16 is provided on the end face of the rear sealing plate 1 away from the heat dissipation window 2, and the reinforcing sheet 16 has the freedom to move along the height direction of the rear sealing plate 1, and a transverse clamp 17 is fixed to the top of the reinforcing sheet 16, and a vertical clamp 18 is fixed to the bottom of the transverse clamp 17 away from one end of the reinforcing sheet 16. The transverse clamp 17 acts on the top of the display screen, and cooperates with the clamping sheet to act on the top and bottom of the display screen respectively, thereby strengthening the connection between the display screen and the heat dissipation structure, so as to prevent the display screen from falling off during use.

[0029] Furthermore, if Figure 1 and Figure 5 As shown, the reinforcing sheet 16 is provided with a vertical groove 19 along its thickness direction, and the reinforcing sheet 16 is connected to the rear sealing plate 1 through a screw 20. The tail of the screw 20 passes through the vertical groove 19 and is threadedly adapted to the rear sealing plate 1. The reinforcing sheet 16 is pressed onto the rear sealing plate 1 through the screw 20. Through the setting of the vertical groove 19, the connection position of the reinforcing sheet 16 can be adjusted according to the height of the display screen, so that the horizontal clip 17 contacts the top of the display screen, and then the screw 20 is tightened to complete the adjustment of the reinforcing sheet 16.

Claims

1. A heat dissipation structure of an outdoor LED display, characterized in that: The invention comprises a rear sealing plate (1), wherein the rear sealing plate (1) is mounted on the rear cover of an LED display screen, a heat dissipation window (2) is provided on the end face of the rear sealing plate (1) contacting the LED display screen, the heat dissipation window (2) covers the heat dissipation holes of the rear cover, a heat dissipation space (4) is provided inside the rear sealing plate (1), a plurality of bottom heat dissipation holes (3) are provided at the bottom of the rear sealing plate (1), the heat dissipation window (2) is connected to the top of the heat dissipation space (4), and the bottom heat dissipation holes (3) are connected to the bottom of the heat dissipation space (4).

2. The heat dissipation structure of an outdoor LED display screen according to claim 1, characterized in that: The invention also comprises a clamping member, a plurality of the clamping members are arranged at the bottom of the rear sealing plate (1), and the plurality of the clamping members are arranged at intervals along the length direction of the rear sealing plate (1), the clamping member comprises a transverse piece (5) and a vertical piece (6), the transverse piece (5) and the vertical piece (6) are fixedly connected to form an L shape, the transverse piece (5) is slidably connected to the rear sealing plate (1), a clamping space is formed between the vertical piece (6) and the rear sealing plate (1), and the size of the clamping space is adjusted by sliding the transverse piece (5).

3. The heat dissipation structure of an outdoor LED display screen according to claim 2, characterized in that: The transverse piece (5) is provided with a strip groove (7) along the thickness direction thereof, and the strip groove (7) extends in the length direction of the transverse piece (5). A limiting column (8) is fixed at the bottom of the rear sealing plate (1), and the limiting column (8) passes through the strip groove (7) to fix a limiting plate (9), and the diameter of the limiting plate (9) is greater than the width of the strip groove (7).

4. The heat dissipation structure of an outdoor LED display screen according to claim 3, characterized in that: A thin-sheet rack (10) is fixed to one side of the transverse sheet (5), the thin-sheet rack (10) is meshed with a gear (11), and the gear (11) is installed at the bottom of the rear sealing plate (1).

5. The heat dissipation structure of an outdoor LED display screen according to claim 4, characterized in that: The gear (11) is coaxially fixed with a screw rod (12), the screw rod (12) is threadedly connected to the bottom of the rear sealing plate (1), and the axial thickness of the gear (11) is greater than the thickness of the thin-sheet rack (10).

6. The heat dissipation structure of an outdoor LED display screen according to claim 5, characterized in that: An inner hexagonal groove (13) is formed at one end of the gear (11) away from the screw rod (12).

7. The heat dissipation structure of an outdoor LED display screen according to claim 6, characterized in that: An elastic pad (14) is fixed to the end surface of the vertical piece (6) close to the rear sealing plate (1).

8. The heat dissipation structure of an outdoor LED display screen according to claim 1, characterized in that: An elastic sealing layer (15) is fixed to the end surface of the rear sealing plate (1) contacting the LED display screen. The elastic sealing layer (15) is provided in four groups. The four groups of the elastic sealing layers (15) are connected around the heat dissipation window (2) to form a ring.

9. The heat dissipation structure of an outdoor LED display screen according to claim 1, characterized in that: A reinforcing sheet (16) is provided on the end surface of the rear sealing plate (1) away from the heat dissipation window (2); the reinforcing sheet (16) has the freedom to move along the height direction of the rear sealing plate (1); a transverse clamp (17) is fixed on the top of the reinforcing sheet (16); and a vertical clamp (18) is fixed on the bottom of the transverse clamp (17) away from one end of the reinforcing sheet (16).

10. The heat dissipation structure of an outdoor LED display screen according to claim 9, characterized in that: The reinforcing plate (16) is provided with a vertical groove (19) along its thickness direction. The reinforcing plate (16) is connected to the rear sealing plate (1) via a screw (20). The tail of the screw (20) passes through the vertical groove (19) and is threadedly adapted to the rear sealing plate (1).

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