Heat dissipation system of multifunctional LED display substrate

Abstract

The utility model discloses a heat dissipation system of a multifunctional LED display substrate. The heat dissipation system comprises a heat dissipation module I and a heat dissipation module II, wherein the heat dissipation module I is matched with a flexible substrate on an LED display; the heat dissipation module II is arranged above the heat dissipation module I; the upper water pipe and the lower water pipe are used for communicating the inner cavities of the heat dissipation module I and the heat dissipation module II; the lever mechanism is arranged on the heat dissipation module I; a limiting hole is formed in the center of the heat dissipation module I; one end of the lever mechanism is provided with a telescopic rod extending into the limiting hole, the other end of the lever mechanism is provided with a piston, and when the lever mechanism drives the piston to move, the conduction states of the heat dissipation module II, the heat dissipation module I and the sewer pipe are switched. According to the heat dissipation system of the multifunctional LED display substrate provided by the utility model, each flexible substrate is respectively provided with a corresponding independent heat dissipation system, so that each position of each module can achieve balanced heat dissipation, the service life of equipment is ensured, and the use stability of an LED is maintained.

Description

Technical Field

[0001] The utility model relates to the field of display design, and more specifically, to a heat dissipation system of a multifunctional LED display substrate. Background Art

[0002] In the prior art, the LED display substrate cannot be directly used on the traditional horizontal splicing screen, and is used on special-shaped screens (such as spherical screens and wavy screens), which makes it unable to cope with the structural changes of the LED display in different scenarios. For this reason, the prior art mostly uses splicing screens to achieve small structural changes, but the splicing screen cannot effectively dissipate heat, which has a greater impact on the LED, that is, excessive heat leads to a decrease in internal quantum efficiency. At the same time, the heat in the middle of a single module in the splicing screen is higher than that around it, which further affects the overall use effect of the splicing screen and affects the service life of the equipment.

[0003] In order to solve this technical problem, the prior art also overcomes the need for splicing special-shaped screens by using flexible substrates for splicing. However, for the spliced ​​screen using flexible substrates, heat dissipation is achieved internally by using heat sinks. For example, a flexible curved touch LED display screen with application number 202321393532.7 has heat sinks with equal spacing fixed on the inner wall of the display screen shell at the heat dissipation cavity. Another example is a flexible LED display screen with application number CN201520135083.5, in which heat sinks are arranged on the back side of the flexible substrate, thereby facilitating the heat dissipation of the LED light-emitting tube and the LED substrate. However, due to the limitations of the internal structure, the heat sink can achieve heat conduction to a certain extent, but cannot dissipate the heat in time, and its heat dissipation effect and uniformity cannot meet the needs. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0005] In order to achieve these purposes and other advantages of the utility model, a heat dissipation system for a multifunctional LED display substrate is provided, comprising:

[0006] Heat dissipation module I that matches the flexible substrate on the LED display;

[0007] A heat dissipation module II disposed above the heat dissipation module I;

[0008] An upper water pipe and a lower water pipe connecting the internal cavities of the heat dissipation module I and the heat dissipation module II;

[0009] A lever mechanism disposed on the heat dissipation module I;

[0010] Wherein, a limiting hole is provided at the center of the heat dissipation module I;

[0011] One end of the lever mechanism is provided with a retractable rod extending into the limited hole, and the other end of the lever mechanism is provided with a piston. When the lever mechanism drives the piston to move, the conduction state between the heat dissipation module II, the heat dissipation module I and the sewer pipe is switched.

[0012] Preferably, the heat dissipation module II is configured to adopt a heat dissipation pipe with a U-shaped cross-section.

[0013] Preferably, the flexible substrate is arranged on the fixed plate via a plurality of telescopic rods.

[0014] Preferably, the flexible substrate is configured to adopt any one of a convex substrate, a concave substrate, a flat substrate, and a wavy substrate.

[0015] Preferably, the piston has an accommodating cavity inside, and a water inlet is provided on a side wall of the piston in contact with the downcomer.

[0016] The utility model includes at least the following beneficial effects: the utility model respectively sets a corresponding independent heat dissipation system on each flexible substrate, and through a simple structure, each position of each module can achieve balanced heat dissipation, thereby ensuring the service life of the equipment and maintaining the stability of LED use.

[0017] This heat dissipation system can quickly cool down the device, allowing the LED to quickly remove heat, ensuring that the middle display screen will not be damaged due to high heat, keeping the heat of the entire screen at a suitable temperature, and improving color consistency.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an overall schematic diagram of a heat dissipation system in one embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of one of the structures of the flexible substrate (convex) of the utility model;

[0021] Figure 3 This is another structural schematic diagram of the flexible substrate (concave) of the utility model;

[0022] Figure 4 This is another structural schematic diagram of the flexible substrate (flat plate) of the utility model;

[0023] Figure 5 This is another structural schematic diagram of the flexible substrate (wavy) of the utility model;

[0024] Figure 6 for Figure 1 Schematic diagram of the cross section along the AA′ direction;

[0025] Figure 7 It is a schematic diagram of water discharge of the heat dissipation system of the utility model in a state of thermal expansion;

[0026] Figure 8 This is a schematic diagram of water inlet of the heat dissipation system of the utility model in a cold contraction state;

[0027] Fig. 9 It is a schematic diagram of the layout of the flexible substrate and the fixed plate of the utility model;

[0028] Fig.10 It is a top view schematic diagram of the heat dissipation module I of the utility model. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0030] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0031] It should be noted that in the description of the present invention, the orientation or position relationship indicated by the term is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "Ⅰ" and "Ⅱ" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0033] A heat dissipation system for a multifunctional LED display substrate, such as Figure 1-5 ,include:

[0034] A heat dissipation module Ⅰ2 matched with a flexible substrate 1 on an LED display, wherein the flexible substrate 1 is arranged on a fixed plate 4 through a plurality of telescopic rods 3, and the flexible substrate 1 is configured to adopt any one of a convex substrate, a concave substrate, a flat substrate, and a wavy substrate, and is spliced ​​by using the flexible substrate 1 to form a targeted shape;

[0035] A heat dissipation module II5 is arranged above the heat dissipation module I2, and the heat dissipation module II5 is configured to adopt a heat dissipation pipe with a U-shaped cross section;

[0036] An upper water pipe 6 and a lower water pipe 7 connecting the internal cavities of the heat dissipation module I2 and the heat dissipation module II5;

[0037] A lever mechanism 8 disposed on the heat dissipation module Ⅰ2;

[0038] Wherein, a limiting hole 9 is provided at the center of the heat dissipation module Ⅰ2;

[0039] One end of the lever mechanism 8 is provided with a retractable rod 10 extending into the limiting hole 9, and the other end of the lever mechanism 8 is provided with a piston 11. When the lever mechanism 8 drives the piston 11 to move, the conduction state of the heat dissipation module II5, the heat dissipation module I2 and the downpipe 7 is switched;

[0040] The piston 11 has a containing cavity inside, and the piston 11 is provided with a water inlet 12 on a side wall in contact with the downpipe 7. In actual operation, the heat dissipation system of the utility model mainly includes a thermal expansion and contraction module (i.e., heat dissipation module I2) + a seesaw (i.e., a lever mechanism 8) + a quasi-horizontal U-shaped tube (two tubes are not in the same horizontal plane, and the middle is a rectangular parallelepiped, i.e., a heat dissipation module II5) + a vertical U-shaped tube (two tubes are in the same horizontal plane, i.e., an upper water pipe 6 and a lower water pipe 7). The thermal expansion and contraction force is applied to the seesaw, so that the piston 11 in the quasi-horizontal U-shaped tube moves, so that the heat dissipating water in the quasi-horizontal U-shaped tube is pushed to the vertical U-shaped tube, thereby realizing rapid heat dissipation; in actual application, the heat of the LED 13 is transferred to the flexible substrate 1, and the flexible substrate 1 transfers the heat to the heat dissipation module I2. The material of the heat dissipation module I2 can be conventional metal or plastic, and the heat dissipation module I2 expands under the action of heat. The retractable rod 10 set in the hollow limiting hole 9 in the center of the heat dissipation module Ⅰ2 moves upward, and under the action of the lever principle, the other side of the lever, that is, the piston 11 in the lower water pipe 7, is in a downward state and partially enters the heat dissipation module Ⅰ2. Because one of the six sides of the piston 11 is open to the outside, and the other sides are closed, the open side, that is, the water inlet 12, makes the inside of the heat dissipation module Ⅰ2 communicate with the inside of the lower water pipe 7, and introduces the heat dissipation fluid in the U-shaped heat dissipation module Ⅱ5 into the heat dissipation module Ⅰ2. When the heat dissipation fluid enters the heat dissipation module Ⅰ2, the internal heat dissipation liquid increases, and when it reaches the bottom of the upper water pipe 6, the excess water flows into the upper water pipe 6 and circulates again into the U-shaped heat dissipation, thereby taking away the heat, and vice versa. This solution can quickly cool down through the heat dissipation system, so that the LED can quickly take away the heat, ensuring that the middle display screen will not be damaged due to high heat, so that the heat of the entire screen is kept at a suitable temperature, and the color consistency is also improved.

[0041] A method for installing a multifunctional LED display, comprising a heat dissipation system of a substrate of the multifunctional LED display, comprising:

[0042] S1. Design an installation model of the telescopic rod according to the curvature radius and the circular section, and install the telescopic rod on the fixed plate according to the installation model;

[0043] S2. Install the heat dissipation system on the side of the flexible board that is away from the LED;

[0044] S3. Based on the product appearance requirements, select a flexible substrate with a corresponding surface shape and install it on the telescopic rod.

[0045] In actual application, the heat dissipation method of the heat dissipation system of the multifunctional LED display substrate is:

[0046] S01. The heat of LED is transferred to the flexible substrate, and the flexible substrate transfers the heat to the heat dissipation module I;

[0047] S02. The retractable rod on the back of the heat dissipation module I expands due to heat. Due to the lever principle, the water pipe on the other side of the lever enters the water discharge step in the thermal expansion state, that is, the retractable rod sleeved in the central limiting hole of the heat dissipation module I moves upward, so that the piston is in a downward state under the action of the lever principle and partially enters the heat dissipation module I, so that the inside of the water pipe is connected with the heat dissipation module I;

[0048] S03. The cooling liquid enters the cooling module I, which increases the internal cooling liquid, and then flows into the upper water pipe and enters the U-shaped cooling pipe (the original internal cooling liquid volume is not higher than the lower water pipe. When the cooling liquid of the cooling module I enters, the overall volume level will be larger than the lower pipe and lower than the upper water pipe), thereby taking away the heat;

[0049] S04. As the heat is taken away, the retractable rod shrinks due to the cold, and due to the lever principle, the lower tube on the other side of the lever enters the water inlet step in the cold shrink state, completing a cycle of heat dissipation. That is, the heat dissipation module I shrinks when it encounters cold, causing the retractable rod to move downward, and the piston is in an upward state under the action of the lever principle and partially enters the heat dissipation module II, so that the inside of the upper water pipe is connected to the heat dissipation module II, completing a cycle of heat dissipation operation.

[0050] The above solution is only an illustration of a preferred embodiment, but is not limited thereto. When implementing the present utility model, appropriate replacement and / or modification can be performed according to user needs.

[0051] The number of devices and processing scales described here are used to simplify the description of the utility model. Applications, modifications and variations of the utility model are obvious to those skilled in the art.

[0052] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A heat dissipation system for a multifunctional LED display substrate, characterized in that: include: Heat dissipation module I that matches the flexible substrate on the LED display; A heat dissipation module II disposed above the heat dissipation module I; An upper water pipe and a lower water pipe connecting the internal cavities of the heat dissipation module I and the heat dissipation module II; A lever mechanism disposed on the heat dissipation module I; Wherein, a limiting hole is provided at the center of the heat dissipation module I; One end of the lever mechanism is provided with a retractable rod extending into the limited hole, and the other end of the lever mechanism is provided with a piston. When the lever mechanism drives the piston to move, the conduction state between the heat dissipation module II, the heat dissipation module I and the sewer pipe is switched.

2. The heat dissipation system of the multifunctional LED display substrate according to claim 1, characterized in that: The heat dissipation module II is configured to adopt a heat dissipation pipe with a U-shaped cross section.

3. The heat dissipation system of the multifunctional LED display substrate according to claim 1, characterized in that: The flexible substrate is arranged on the fixed plate through a plurality of telescopic rods.

4. The heat dissipation system of the multifunctional LED display substrate according to claim 1, characterized in that: The flexible substrate is configured to adopt any one of a convex substrate, a concave substrate, a flat substrate, and a wavy substrate.

5. The heat dissipation system of the multifunctional LED display substrate according to claim 1, characterized in that: The piston has an accommodating cavity inside, and a water inlet is arranged on a side wall of the piston in contact with the down pipe.

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