LED display screen electric control cabin with double-layer protection heat dissipation structure

Abstract

The utility model discloses an LED display screen electric control cabin with a double-layer protection heat dissipation structure, which comprises an electric cabin shell, the electric cabin shell comprises an outer shell and an inner shell, the inner shell forms an inner layer space for accommodating a driving board card and a power supply block, and an outer layer space is formed between the inner shell and the outer shell. The electric control bin is of a double-layer structure made of a high-heat-conductivity corrosion-resistant metal material, an inner-layer space is used for containing a driving board card and a power supply block, heat generated in the inner-layer space is exchanged with external air through metal plates with high heat conductivity on the inner layer and the outer layer, and the double-layer protection space has the protection strength and the air tightness higher than those of a single-layer shell. The long-term reliable and stable working environment of the display screen driving board card is improved, and the quality of the display screen is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of LED display screen, more exactly, relate to a LED display screen electric control bin with double -layer protection heat dissipation structure. BACKGROUND

[0002] The LED display screen is assembled into a whole by display panel module, power block drive board module of drive board card module, the drive board card is big in size and needs larger containing space, and the heat generated by the high -power power supply is also big, so the heat dissipation space is needed, the existing display screen drive board card protection in the industry usually places the drive board card in a space that can be opened and locked with a sealing rubber strip, and the space is sealed, the ventilation device that can extract the heat is built -in, or the metal structure part casing containing the board card directly dissipates heat.

[0003] In addition, because the larger power supply board card containing space needs to resist external force impact, the air tightness protection, heat dissipation needs to be strengthened to ensure that the display screen works stably for a long time, especially for the outdoor display screen in harsh environment.

[0004] And the protection strength, air tightness, heat dissipation effect of the general single -layer shell structure are difficult to achieve the best, so that the drive board card is difficult to adapt to the complex outdoor environment, and the long -term stable work of the drive board card is challenged, and the quality of the display screen cannot be guaranteed.

[0005] The utility model discloses a double -layer protection LED display screen box body, the outer surface of the box body is equipped with LED module, the back of the box body is equipped with double -layer door, one side of the double -layer door is pivoted with the box body, the double -layer door includes the parallelly arranged inner door and outer door, the inner surface of the inner door close to the box body is the inner surface, is equipped with power on the inner surface, the outer surface of the inner door opposite to the inner surface is equipped with heat dissipation device, the outer door is fixed on the inner door, and the side close to the inner door of the outer door contacts with the heat dissipation device. The power is fixed on the inner surface of the inner door, the distance between the power and the LED module is increased, that is, the distance between the power and the LED display screen drive board is increased, so that the influence of heat on the drive board can be effectively reduced, the heat in the box body is conducted out through heat transfer, and maintenance is facilitated.

[0006] This makes the whole display screen box into double -layer structure, which is high in manufacturing cost and large in size, thereby being not conducive to commercial promotion, and because the main electronic components generating heat energy are drive board card and power block, if the whole display screen box is made into double -layer structure, the heat dissipation efficiency will be reduced. UTILITY MODEL CONTENTS

[0007] The utility model provides a kind of LED display screen electric control storehouse with double-layer protection heat dissipation structure, the inner space of this electric control storehouse is used to accommodate drive board card, power block, the heat generated in inner space is exchanged heat dissipation by the metal plate of high thermal conductivity of inside and outside, the protective space of double layer has higher protective strength and air tightness than single-layer shell, improve the environment of display screen drive board card long-term reliable stable work, further improve display screen quality.

[0008] In order to realize the above-mentioned purpose, the technical scheme of the utility model is a kind of LED display screen electric control storehouse with double-layer protection heat dissipation structure, for installing on display screen box body, including electric storehouse shell, the electric storehouse shell includes outer shell body and inner shell body, the inner shell body is formed with the inner space for accommodating drive board card and power block, outer space is formed between inner shell body and outer shell body.

[0009] Preferably, the inner shell body includes an inner rear cover plate with heat dissipation bones, an inner front cover plate for mounting drive board card and power block, the outer shell body includes an outer rear cover door, the outer rear cover door is arranged on the side of the inner rear cover plate away from the inner front cover plate, the left and right sides of the inner shell body are respectively provided with a first L-shaped connecting plate and a second L-shaped connecting plate for fixed connection with the external display screen box body, and a gap channel is formed between the first L-shaped connecting plate and the second L-shaped connecting plate and the inner shell body; the first L-shaped connecting plate and / or the second L-shaped connecting plate are connected with the outer rear cover door in an openable or closable manner.

[0010] Preferably, the inner rear cover plate and the inner front cover plate are provided with a locking structure for driving them to approach each other to connect or move away from each other to open and disconnect the power block.

[0011] Preferably, the locking structure includes a sliding piece and a limiting column, the sliding piece is provided with a sliding channel, the limiting column is embedded in the sliding channel, the limiting column is fixed on the inner front cover plate, and one end of the sliding piece is fixedly connected with the inner rear cover plate.

[0012] Preferably, the sliding piece is made of nylon material, the inner rear cover plate is provided with a rear outer edge, the inner front cover plate is provided with a front outer edge, the rear outer edge and the front outer edge are both provided with a through hole for the sliding piece to pass through, and one end of the sliding piece towards the rear outer edge is provided with a positioning part for preventing disengagement from the rear outer edge.

[0013] Preferably, the inner shell body is formed in a rectangular parallelepiped shape, the first L-shaped connecting plate and the second L-shaped connecting plate are respectively located on both sides of the long side of the inner shell body, the both sides of the short side of the inner shell body are both provided with a blocking door plate, and the inner rear cover plate and the inner front cover plate are both fixedly connected with the blocking door plate.

[0014] Preferably, the blocking door plate is provided with a wire harness passing structure.

[0015] Preferably, the inner front cover plate is provided with an inner waterproof silica gel ring at a position where the inner front cover plate is connected with the drive board card and the power supply block.

[0016] Preferably, the outer rear cover door is provided with an outer waterproof silica gel ring near an edge, and when the outer rear cover door and the outer front cover plate are connected in a closed state, the outer waterproof silica gel ring is tightly attached to the inner front cover plate.

[0017] By adopting the technical scheme, the electric control bin has the following advantages:

[0018] 1. The power supply block, the drive board card and other electronic components are arranged in the inner layer space, and a certain amount of heat is generated, the inner layer space is a relatively closed space, so that the electronic components can always be in a closed environment for dustproof and waterproof; the outer layer space is semi-closed, and plays a role of heat exchange and heat dissipation with the outside; the inner layer space and the outer layer space jointly act, hot air rises and exchanges heat through the outer layer space and the outside air, forming a natural convection heat dissipation effect, further improving the heat dissipation effect; the whole realizes a reliable inner layer airtight working environment for the power supply block, the drive board card and other electronic components, and has good heat dissipation and external impact resistance of the outer shell;

[0019] 2. The outer layer space formed between the inner shell and the outer shell is based on the fact that the inner shell and the outer shell are both cuboids, and six interlayer spaces are formed between the two, and heat dissipation is realized through hot air convection; the heat generated by the inner shell is transmitted to the outer shell through the inner shell, and then exchanged with the outside air through the heat dissipation structure of the outer shell, so that the heat can be quickly dissipated;

[0020] 3. The inner shell is convenient for mounting and fixing the drive board card and the power supply block; the outer rear cover door is convenient for maintenance and repair; the inner shell and the outer shell can be fixed with the display screen box body framework through bolts, and the installation is simple and the structure is stable; at the same time, since the inner front cover plate is provided with the power supply block, it needs to be plugged in and out for power on or off, and the locking structure enables the inner rear cover plate and the inner front cover plate to be close to or away from each other, so as to facilitate maintenance and ensure the safety of maintenance;

[0021] 4. When the electronic components are plugged in the inner front cover plate, the inner waterproof silica gel ring is embedded around the connecting part, so as to ensure the waterproof performance when the display module is connected with the drive board card, and the outer waterproof silica gel ring is arranged around the outer rear cover door, and when the outer rear cover door is locked, the outer waterproof silica gel ring is tightly attached to the inner shell, realizing the sealing and waterproof between the double-layer shells;

[0022] 5. The double-layer shell structure not only improves the protection strength of the electric control bin, but also enhances the anti-external impact capability, and the first L-shaped connecting plate and the second L-shaped connecting plate are connected with the external display screen box body, further enhancing the stability and impact resistance of the whole structure of the electric control bin.

[0023] 6. The setting of the wire harness through the structure of the blocking door plate is convenient for the arrangement and management of the wire harness, in addition, the wire harness can be locked by the waterproof locking nut, and the waterproof performance of the wire harness is ensured.

[0024] In conclusion, the utility model discloses the optimization design of double protection heat dissipation structure, high -efficient heat dissipation mechanism, modular design, waterproof sealing performance, hot air convection heat dissipation, structural strength and impact resistance and wire harness management etc. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be described in detail below in combination with embodiments and drawings, wherein:

[0026] Figure 1 It is the LED display screen electric control room whole structure with double protection heat dissipation structure of the utility model Figure 1 ;

[0027] Figure 2 It is Figure 1 the explosion view of

[0028] Figure 3 It is the LED display screen electric control room whole structure with double protection heat dissipation structure of the utility model Figure 2 ;

[0029] Figure 4 It is Figure 3 the A-A section view of

[0030] Figure 5 It is Figure 3 the B-B section view (not containing internal electronic components) of

[0031] Figure 6 It is the whole structure diagram of inner shell body

[0032] Figure 7 It is Figure 6 the C part enlarged view of

[0033] Figure 8 It is the structure schematic drawing of the LED display screen electric control room with double protection heat dissipation structure of the utility model is installed on the display screen box.

[0034] 20. Inner space; 10. Outer space; 1. Outer shell; 12. First L-shaped connecting plate; 13. Second L-shaped connecting plate; 2. Inner shell; 21. Inner rear cover; 211. Heat dissipation rib; 212. Rear outer edge; 22. Inner front cover; 221. Front outer edge; 23. Sealing door panel; 3. Locking structure; 31. Sliding piece; 32. Limiting post; 311. Sliding channel; 312. Positioning part; 4. Connecting structure. Detailed Implementation

[0035] The specific embodiments of this utility model are further described below with reference to the accompanying drawings:

[0036] like Figures 1 to 8 As shown, an LED display screen electrical control compartment with a double-layer protective heat dissipation structure is used for mounting on the display screen cabinet. It includes a compartment housing, which comprises an outer shell 1 and an inner shell 2. The inner shell 2 forms an inner space 20 for accommodating driver boards and power blocks. An outer space 10 is formed between the inner shell 2 and the outer shell 1. It should be noted that, according to common industry practice, the inner shell 2 is preferably rectangular, and its internal inner space is also rectangular.

[0037] The inner housing 2 includes an inner rear cover plate 21 with heat dissipation ribs 211 and an inner front cover plate 22 for mounting drive boards and power blocks. Both the inner rear cover plate 21 and the inner front cover plate 22 are made of metal profiles, preferably drawn aluminum profiles with surface oxidation treatment.

[0038] The inner front cover 22 is preferably U-shaped. The opening of the U-shaped inner front cover 22 is located on the side away from the display module. The side facing the display module has a rectangular hole that allows electrical connection. A waterproof silicone ring is embedded around the rectangular hole to waterproof the drive board connection socket placed inside the protective inner shell of the display module.

[0039] The inner rear cover plate 21 is located on one side of the opening on the back of the U-shaped inner front cover plate 22. The heat dissipation rib 211 is located on the side of the inner rear cover plate 21 away from the inner front cover plate 22. The heat dissipation rib 211 is a strip-shaped heat dissipation structure. Both sides of the short side of the inner shell 2 are provided with sealing door plates 23. The sealing door plates 23 are provided with wire harness passage structures. The waterproofing of the wire harness is achieved by locking nuts made of waterproof materials such as rubber or silicone to lock and waterproof the wire harness.

[0040] The connection mode one between the inner rear cover plate 21 and the inner front cover plate 22 can be locked and fixed by bolts, and is specifically provided that the two side edges of the inner rear cover plate 21 are provided with outwardly turned rear outer edges 212, the rear outer edges 212 are provided with folded edge bolt hole positions capable of locking and fixing bolts, the inner front cover plate 22 is also provided with front outer edges 221 for locking and fixing connection with the rear outer edges 212, the front outer edges 221 are also provided with connection bolt hole positions opposite to the folded edge bolt hole positions, and the bolts pass through the folded edge bolt hole positions and the connection bolt hole positions to realize the locking and fixing connection of the inner rear cover plate 21 and the inner front cover plate 22.

[0041] The connection mode two between the inner rear cover plate 21 and the inner front cover plate 22 is that the inner rear cover plate 21 and the inner front cover plate 22 are provided with a locking structure 3 for driving the two to approach each other to be connected or to move away from each other to be opened to make the power block be in a disconnection state, the locking structure 3 includes a sliding sheet 31 made of nylon material and a limiting column 32 (the limiting column 32 can be a rivet or made of nylon material), the sliding sheet 31 is provided with a sliding channel 311 (the sliding channel 311 can be a through groove or a through hole), the limiting column 32 is embedded in the sliding channel 311, the limiting column 32 is fixed on the inner front cover plate 22, one end of the sliding sheet 31 is fixedly connected with the inner rear cover plate 21, specifically, the inner rear cover plate 21 is provided with a rear outer edge 212, the inner front cover plate 22 is provided with a front outer edge 221, the rear outer edge 212 and the front outer edge 221 are both provided with through holes for the sliding sheet 31 to pass through, one end of the sliding sheet 31 towards the rear outer edge 212 is provided with a positioning portion 312 for preventing disengagement from the rear outer edge 212. When it is needed to disconnect the power block from the circuit board, the sliding sheet 31 can be first disconnected from the limiting column 32, and the sliding sheet 31 is rotated to make the inner rear cover plate 21 and the inner front cover plate 22 smoothly move away from each other; when it is needed to insert the power block into the circuit board and make the display screen work normally, the inner rear cover plate 21 and the inner front cover plate 22 can be smoothly approached to each other, and the sliding sheet 31 is embedded with the limiting column 32, then the inner rear cover plate 21 and the inner front cover plate 22 are continuously approached to each other until completely buckled.

[0042] The outer shell 1 includes an outer rear cover door, the outer rear cover door is arranged on the side of the inner rear cover plate 21 away from the inner front cover plate 22, the left and right sides of the inner shell 2 in the long edge direction are respectively provided with a first L-shaped connecting plate 12 and a second L-shaped connecting plate 13 for fixedly connecting with an external display screen box body, the first L-shaped connecting plate 12 and the second L-shaped connecting plate 13 are both provided with gap channels with the inner shell 2, more specifically, the first L-shaped connecting plate 12 and the second L-shaped connecting plate 13 are both provided with gap channels with the long edges of the U-shaped inner front cover plate 22, wherein the first L-shaped connecting plate 12 and the second L-shaped connecting plate 13 are both preferably made of metal material.

[0043] The outer rear cover door can be provided with an openable or closable connecting structure with the first L-shaped connecting plate 12, can be provided with an openable or closable connecting structure with the second L-shaped connecting plate 13, or can be provided with an openable or closable connecting structure 4 with the first L-shaped connecting plate 12 and / or the second L-shaped connecting plate 13. The so-called connecting structure 4 can be a buckle, a mechanical lock, an electronic lock, etc.

[0044] It should be noted that the outer shell 1 can also be provided with an outer front cover plate. Based on the comprehensive consideration of manufacturing cost, assembly convenience, heat dissipation effect, etc., the outer front cover plate is not provided, but when the first L-shaped connecting plate 12 and the second L-shaped connecting plate 13 are connected with the external display module, it is ensured that gaps are formed between the first L-shaped connecting plate 12, the second L-shaped connecting plate 13, the inner front cover plate 22 and the display module, the gaps are communicated with the gap channels, or in other words, the gap channels are part of the gaps. In the case that the power supply in the inner shell 2 generates heat, the hot air rises by convection exchange through the gaps, achieving heat dissipation of the power supply, and also saving the setting of the outer front cover plate.

[0045] Through the above setting, the outer part of the inner shell 2 and the inner side of the outer shell 1 and the back of the display module form a six-surface sandwich space. Since the heat generated by the power supply block and the drive board card and other electronic components in the inner shell 2 and the heat generated by the display module installed on the front surface will drive the hot air flow in the sandwich space to rise, the air rising and automatic convection heat dissipation between the inner shell 2, the outer shell 1 and the display module are achieved, thereby achieving the heat dissipation effect together.

[0046] The inner rear cover plate 21 and the inner front cover plate 22 are fixedly connected with the sealing door plate 23 by laser welding, of course, these components can also be fixedly connected by rivet connection, bolt connection, in order to ensure the stability of the whole connection, the welding connection is preferred.

[0047] The inner front cover plate 22 is provided with an inner waterproof silica gel ring at the connection position with the drive board card and the power supply block. The outer waterproof silica gel ring is arranged on the outer rear cover door close to the edge. When the outer rear cover door and the outer front cover plate are connected in a closed state, the outer waterproof silica gel ring is tightly attached to the inner front cover plate 22. When the outer rear cover door is closed and locked, the silica gel ring arranged on the outer rear cover door is pressed on the inner front cover plate 22, achieving the sealing and waterproof between the outer shell 1 and the inner shell 2.

[0048] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An LED display screen electric control bin with a double-layer protection heat dissipation structure, used for being installed on a display screen box body, comprising an electric bin shell, characterized in that: The electric bin shell comprises an outer shell and an inner shell, the inner shell forms an inner space for accommodating a drive board card and a power supply block, and an outer space is formed between the inner shell and the outer shell.

2. The LED display screen electric control room with double-layer protection and heat dissipation structure according to claim 1, characterized in that: The inner shell comprises an inner rear cover plate with a heat dissipation bone site and an inner front cover plate for mounting the drive board card and the power supply block, the outer shell comprises an outer rear cover door, the outer rear cover door is arranged on the side of the inner rear cover plate away from the inner front cover plate, the left and right sides of the inner shell are respectively provided with a first L-shaped connecting plate and a second L-shaped connecting plate for fixedly connecting with an external display screen box body, and a gap channel is formed between the first L-shaped connecting plate and the second L-shaped connecting plate and the inner shell. The first L-shaped connecting plate and / or the second L-shaped connecting plate are connected with the outer rear cover door in an openable or closable manner. 3.The electric control room of the LED display screen with the double-layer protection and heat dissipation structure according to claim 2, characterized in that: The inner rear cover plate and the inner front cover plate are provided with a locking structure for driving them to approach each other to be connected or to move away from each other to be disconnected.

4. The LED display screen electric control room with double-layer protection and heat dissipation structure according to claim 3, characterized in that: The locking structure comprises a sliding sheet and a limiting column, the sliding sheet is provided with a sliding channel, the limiting column is embedded in the sliding channel, the limiting column is fixed on the inner front cover plate, and one end of the sliding sheet is fixedly connected with the inner rear cover plate.

5. The LED display screen electric control room with double-layer protection and heat dissipation structure according to claim 4, characterized in that: The sliding sheet is made of nylon material, the inner rear cover plate is provided with a rear outer edge, the inner front cover plate is provided with a front outer edge, the rear outer edge and the front outer edge are both provided with a through hole for the sliding sheet to pass through, and one end of the sliding sheet towards the rear outer edge is provided with a positioning part for preventing the sliding sheet from being separated from the rear outer edge. 6.The electric control room of the LED display screen with the double-layer protection and heat dissipation structure according to claim 2, characterized in that: The inner shell is arranged in a cuboid shape, the first L-shaped connecting plate and the second L-shaped connecting plate are respectively arranged on the two sides of the long side of the inner shell, and the two sides of the short side of the inner shell are both provided with a sealing door plate, and the inner rear cover plate and the inner front cover plate are both fixedly connected with the sealing door plate. 7.The electric control room of the LED display screen with the double-layer protection and heat dissipation structure according to claim 6, characterized in that: The sealing door plate is provided with a wire harness passing structure. 8.The electric control room of the LED display screen with the double-layer protection and heat dissipation structure according to claim 2, characterized in that: The inner front cover plate is provided with an inner waterproof silica gel ring at the position where the inner front cover plate is connected with the drive board card and the power supply block. 9.The electric control room of the LED display screen with the double-layer protection and heat dissipation structure according to claim 2, characterized in that: The outer rear cover door is provided with an outer waterproof silica gel ring close to the edge, and when the outer rear cover door and the outer front cover plate are connected in a closed manner, the outer waterproof silica gel ring is tightly attached to the inner front cover plate.

Images