Heat dissipation mechanism of outdoor LED screen

Abstract

The utility model discloses a heat dissipation mechanism of an outdoor LED screen, which comprises an LED screen, a casing is arranged on one side of the back of the LED screen, a water cooling unit is arranged on the other side of the casing, an inlet pipe is arranged at the output end of a power pump on one side of the water cooling unit, and the tail end of the inlet pipe extends to an inner cavity of the casing and is provided with a water cooling liquid delivery pipe. A water cooling block is arranged on the water cooling liquid conveying pipe in a mode of being in contact with an element on the back face of the LED screen, a plurality of sets of heat conduction fins are arranged inside and outside the pipe wall of the water cooling liquid conveying pipe, a heat dissipation fin is arranged at one end of each set of heat conduction fins, a protection partition plate is arranged outside the multiple heat dissipation fins, and the protection partition plate is arranged on the outer end face of the machine shell. A return pipe is arranged at the tail end of the water cooling liquid conveying pipe, the tail end of the return pipe penetrates through the machine shell and extends to the outside to be arranged with the water cooling unit, and a fan is arranged at the side end of the water cooling unit. According to the utility model, internal heat accumulation is reduced, and a good heat dissipation effect is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of LED screens, in particular to a heat dissipation mechanism for an outdoor LED screen. Background Technique

[0002] With the progress of electronic technology, LED screens have entered people's daily lives. They are mainly devices for displaying various information such as text, images, videos, and video signals. LED screens have many advantages such as bright colors, wide dynamic range, long lifespan, and high brightness, and are widely used in commercial media, cultural performances, and other places.

[0003] However, after the LED screen is used outdoors for a long time, due to the high temperature in summer and the heat generated by the LED screen during use, the temperature inside the housing of the LED screen will rise. The high temperature affects the service life of the LED lights. Therefore, heat dissipation is required. At present, most LED screens only transfer the heat inside the housing to the air through heat dissipation fins for natural heat dissipation, which results in low heat dissipation efficiency, and the heat dissipation effect of the heat dissipation fins is not good when the air temperature is high in summer. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat dissipation mechanism for an outdoor LED screen to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat dissipation mechanism for an outdoor LED screen, including an LED screen, the back of the LED screen is fixedly connected to one side of the housing, a water cooling unit is arranged on the other side of the housing, the output end of a power pump on one side of the water cooling unit is provided with an inlet pipe, the end of the inlet pipe extends into the inner cavity of the housing and is provided with a water cooling liquid conveying pipe, a water cooling block is arranged on the water cooling liquid conveying pipe in contact with the components on the back of the LED screen, multiple groups of heat conduction fins are arranged on the inner and outer walls of the water cooling liquid conveying pipe, one end of each group of heat conduction fins is provided with a heat dissipation fin, a protective partition is arranged outside multiple heat dissipation fins, and the protective partition is arranged on the outer end face of the housing, the end of the water cooling liquid conveying pipe is provided with a return pipe, the end of the return pipe penetrates through the housing and extends to the outside to be arranged with the water cooling unit, and a blower is arranged on the side end of the water cooling unit.

[0006] Preferably, the water cooling unit includes a water cooling water tank and a water pump. The water inlet part of the water pump is connected to the water cooling water tank, and the water outlet part of the water pump is connected to the inlet pipe.

[0007] Preferably, the water cooling liquid conveying pipe is distributed in a snake shape and is arranged close to the back of the LED screen.

[0008] Preferably, the plurality of heat dissipation fins are evenly distributed on the end face of the protection partition, and a duct is formed between every two heat dissipation fins. One end of the heat dissipation fin extends between the LED screen and the casing, and the other end of the heat dissipation fin extends outside the protection partition.

[0009] Preferably, the protection partition is made of a high-temperature resistant material.

[0010] Preferably, both the inlet pipe and the return pipe are made of high-temperature resistant pipes.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The water cooling unit, inlet pipe, water cooling liquid delivery pipe, heat conduction fins, heat dissipation fins and return pipe provided in the present utility model can absorb and transfer the heat generated by the LED screen inside the casing through the heat conduction fins and heat dissipation fins. Start the water pump at the water cooling unit, and pump the water cooling liquid in the water cooling tank through the suction of the water pump and via the inlet pipe, water cooling liquid delivery pipe and return pipe, and exchange heat with the heat conduction fins and heat dissipation fins through the water cooling liquid delivery pipe to cool them down, thereby improving the heat dissipation efficiency of the heat conduction fins and heat dissipation fins, and solving the problem that the heat dissipation effect of the heat dissipation fins is poor due to the high air temperature in summer.

[0013] 2. The present utility model also provides a protection partition. Since the protection partition covers the outer surface of the casing, it can help extend the service life of the protection partition, protect the LED screen and the external structure of the casing from being exposed to the sun outdoors, and reduce the aging rate. In addition, the LED screen and the water cooling unit are respectively located on both sides of the casing, and the heat inside the casing is transferred through the heat conduction fins and the heat dissipation effect is ensured, so as to ensure that the water cooling unit will not affect the use of the LED screen. Description of the Drawings

[0014] Figure 1 It is the overall front main view three-dimensional structure diagram of the present utility model;

[0015] Figure 2 It is the overall back internal three-dimensional structure diagram of the present utility model;

[0016] Figure 3 It is the overall back partial cross-sectional three-dimensional structure diagram of the present utility model.

[0017] In the figure: 1. LED screen; 2. Casing; 3. Water cooling unit; 4. Inlet pipe; 5. Water cooling liquid delivery pipe; 6. Heat conduction fin; 7. Heat dissipation fin; 8. Protection partition; 9. Return pipe; 10. Fan. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a heat dissipation mechanism for an outdoor LED screen, including an LED screen 1, the back of the LED screen 1 is fixedly connected to one side of the casing 2, and a water cooling unit 3 is fixedly installed on the other side of the casing 2 by screws. The output end of the power pump on one side of the water cooling unit 3 is inserted and fixed with an inlet pipe 4, and the end of the inlet pipe 4 extends into the inner cavity of the casing 2 and is integrally and communicatively fixed with a water cooling liquid delivery pipe 5. A water cooling block is installed in contact with the components on the back of the LED screen 1 on the water cooling liquid delivery pipe 5. The water cooling block is a metal block with a water channel inside, made of copper or aluminum, which contacts the components and absorbs heat. A plurality of heat conduction fins 6 are installed inside and outside the pipe wall of the water cooling liquid delivery pipe 5, and one end of each group of heat conduction fins 6 is welded and fixed with a heat dissipation fin 7, increasing the heat dissipation area in contact with the air outside. A protection partition 8 is installed outside a plurality of heat dissipation fins 7, and the protection partition 8 covers the outer end face of the casing 2. The end of the water cooling liquid delivery pipe 5 is integrally and communicatively fixed with a return pipe 9, and the end of the return pipe 9 penetrates through the casing 2 and extends to the outside and is inserted and fixed with the water cooling unit 3. A fan 10 is installed in a slot on the side end of the water cooling unit 3. Under the action of the ventilation opening on one side of the water cooling unit 3, the internal components of the water cooling unit 3 are cooled in time.

[0020] The water cooling unit 3 includes a water cooling water tank and a water pump. The water inlet part of the water pump is connected to the water cooling water tank, and the water outlet part of the water pump is connected to the inlet pipe 4; the water cooling liquid delivery pipe 5 is distributed in a snake shape and is installed close to the back of the LED screen 1, increasing the contact area with the LED screen 1 and improving the heat dissipation effect; a plurality of heat dissipation fins 7 are equidistantly distributed on the end face of the protection partition 8, and two heat dissipation fins 7 form a wind channel. One end of the heat dissipation fin 7 extends between the LED screen 1 and the casing 2, and the other end of the heat dissipation fin 7 extends outside the protection partition 8. When there is air flow outside, heat conduction is better; the protection partition 8 is made of a high-temperature resistant material, and polyphenylene sulfide can be selected to extend the service life of the protection partition 8 and reduce the aging rate; both the inlet pipe 4 and the return pipe 9 are made of high-temperature resistant pipes to extend the service life of the inlet pipe 4 and the return pipe 9 and reduce the aging rate.

[0021] Working principle: When this utility model is used outdoors, a large amount of heat is generated by the LED screen 1. The heat is absorbed by the heat dissipation fins 7. Since the heat conduction fins 6 and the inlet pipe 4 are arranged on the other side of the heat dissipation fins 7, the water pump at the water-cooled unit 3 is started. The water-cooled liquid in the water tank is pumped through the inlet pipe 4, the water-cooled liquid conveying pipe 5 and the return pipe 9 by the suction of the water pump, and heat exchange and cooling are carried out on the heat conduction fins 6 and the heat dissipation fins 7 contacted through the water-cooled liquid conveying pipe 5. The water-cooled liquid conveying pipe 5 does not directly exchange heat and cool the electronic components on the side of the LED screen 1, but through the heat dissipation fins 7, so the air at the LED screen 1 will not generate water droplets due to cooling, and at the same time, the heat dissipation efficiency of the heat dissipation fins 7 is improved. During the process of pumping the water-cooled liquid, the heat conduction fins 6 penetrating through the inner and outer walls of the water-cooled liquid conveying pipe 5 and the heat dissipation fins 7 welded to each group of heat conduction fins 6 can conduct the internal heat outwards through the heat dissipation fins 7, reducing the accumulation of internal heat and maintaining a good heat dissipation effect. There is also the design of the protective partition 8, which helps to extend the service life of the protective partition 8, protects the external structures of the LED screen 1 and the casing 2 under frequent outdoor sunlight, and reduces the aging rate. It has the advantages of simple operation, convenient use and good use effect.

[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation mechanism for an outdoor LED screen, comprising an LED screen (1), characterized in that: The back of the LED screen (1) is fixedly connected to one side of the casing (2). A water cooling unit (3) is provided on the other side of the casing (2). An inlet pipe (4) is provided at the output end of the power pump on one side of the water cooling unit (3). The end of the inlet pipe (4) extends into the inner cavity of the casing (2) and is provided with a water cooling liquid delivery pipe (5). A water cooling block is arranged on the water cooling liquid delivery pipe (5) in contact with the components on the back of the LED screen (1). A plurality of groups of heat conducting fins (6) are arranged inside and outside the pipe wall of the water cooling liquid delivery pipe (5). One end of each group of the heat conducting fins (6) is provided with a heat dissipating fin (7). A protective partition (8) is arranged outside a plurality of the heat dissipating fins (7), and the protective partition (8) is arranged on the outer end face of the casing (2). The end of the water cooling liquid delivery pipe (5) is provided with a return pipe (9). The end of the return pipe (9) penetrates through the casing (2) and extends to the outside to be connected with the water cooling unit (3). A blower (10) is provided at the side end of the water cooling unit (3).

2. The heat dissipation mechanism of an outdoor LED screen according to claim 1, characterized in that: The water cooling unit (3) includes a water cooling water tank and a water pump. The water inlet part of the water pump is connected to the water cooling water tank, and the water outlet part of the water pump is connected to the inlet pipe (4).

3. The heat dissipation mechanism of an outdoor LED screen according to claim 1, characterized in that: The water cooling liquid delivery pipe (5) is distributed in a snake shape and is arranged close to the back of the LED screen (1).

4. The heat dissipation mechanism of an outdoor LED screen according to claim 1, characterized in that: A plurality of the heat dissipating fins (7) are equidistantly distributed on the end face of the protective partition (8). An air duct is formed between every two of the heat dissipating fins (7). One end of the heat dissipating fin (7) extends between the LED screen (1) and the casing (2), and the other end of the heat dissipating fin (7) extends outside the protective partition (8).

5. The heat dissipation mechanism of an outdoor LED screen according to claim 1, wherein: The protective partition (8) is made of a high-temperature resistant material.

6. The heat dissipation mechanism of an outdoor LED screen according to claim 1, characterized in that: Both the inlet pipe (4) and the return pipe (9) are made of high-temperature resistant pipes.

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