CN110570781A - LED display module and LED splicing display system - Google Patents

Abstract

The present invention provides an LED display module and an LED splicing display system. The LED display module includes: a box with a first through hole and a second through hole; an LED display panel assembly, the LED display panel The component is arranged on the front of the box; a power supply component is arranged in the box and is electrically connected with the LED display panel component, and is used to control the display of the LED display panel component; a cooling pipe is set The liquid inlet port and the liquid outlet port of the tank are respectively connected and communicated with the first through hole and the second through hole, and the power supply component is in contact with the cooling pipe to dissipate heat. The LED display module and the LED splicing display system provided by the present invention dissipate heat from the power supply components through the cooling pipes arranged in the cabinet, which can improve the heat dissipation efficiency and effect.

Description

LED display module and LED splicing display system

technical field

The invention relates to the technical field of LED display screens, in particular to an LED display module and an LED splicing display system.

Background technique

With many advantages such as high brightness, controllability, long life, energy saving, and safety, LED display screens are constantly being used in various fields. Outdoor advertising signboards are one of the earliest applications of LED displays, but there are always two shortcomings in actual use. The first disadvantage is that the door at the back of the box is of non-sealed structure, and the protection level is low. The heat generated by the drive circuit and devices on the back of the module and the heat generated by the switching power supply of the display screen are all trapped inside the box and cannot be effectively discharged. Therefore, it is necessary to add air inlet and outlet devices at the rear of the box to effectively discharge the heat inside the box. The air inlet and air outlet devices added at the rear of the cabinet need openings to facilitate air circulation. Therefore, the protection level behind the box is low, and dust and humid air can enter the box smoothly, which seriously affects the normal operation of the drive circuit and devices on the back of the module, the display switching power supply, and the control system. The second disadvantage is the heat dissipation problem of the LED display. If an axial flow fan is used, the heat dissipation efficiency is higher, but the noise is louder; if an air conditioner is used for cooling, the heat dissipation efficiency is higher, but the cost of operation is higher, and both methods need to seal the rear of the LED display This greatly increases the difficulty of on-site construction and subsequent maintenance.

Therefore, there are defects in the prior art, and improvement is badly needed.

Contents of the invention

The object of the present invention is to provide an LED display module and an LED splicing display system, which can improve the heat dissipation effect of the power supply components in the cabinet.

The invention provides an LED display module, comprising:

A box body, which is provided with a first through hole and a second through hole;

LED display panel assembly, the LED display panel assembly is arranged on the front of the box;

A power supply assembly, which is arranged in the box and electrically connected to the LED display panel assembly, for controlling the display of the LED display panel assembly;

A cooling pipe is arranged in the box, and its liquid inlet and liquid outlet are respectively connected and communicated with the first through hole and the second through hole, and the power supply component is in contact with the cooling pipe to dissipate heat.

In the LED display module of the present invention, the cooling pipe extends in a meandering manner in the box.

In the LED display module of the present invention, the power supply assembly includes at least two power supply sub-components;

The cooling pipe includes a liquid inlet main pipe, a liquid outlet main pipe and at least two cooling branch pipes;

One end of the main liquid inlet pipe is connected to the first through hole, the other end of the main liquid inlet pipe is connected to one end of each of the cooling branch pipes, and the other end of each of the cooling branch pipes is connected to the first through hole. One end of the liquid outlet main pipe is connected, and the other end of the liquid outlet main pipe is connected to the second through hole; each of the cooling branch pipes is respectively in contact with at least one of the power supply sub-components for heat dissipation.

In the LED display module of the present invention, each of the cooling branch pipes extends in a meandering manner to form a plurality of circuitous sections, so that the corresponding power supply sub-component is in contact with at least two circuitous sections corresponding to the cooling branch pipes.

In the LED display module of the present invention, the LED display panel assembly is formed by splicing a plurality of LED display panels.

In the LED display module of the present invention, at least one opening is provided on the back of the box, and each opening is provided with a door for closing the opening;

The upper edge of the opening is provided with a sealing structure to prevent dust and moisture from entering the box from the upper edge.

In the LED display module of the present invention, the sealing structure includes a first groove structure and a second groove structure, and both the first groove structure and the second groove structure are along the opening The upper edge of the first groove structure extends in the direction of the upper edge, the upper edge of the first groove structure is connected to the upper edge of the inner side of the opening and the first groove structure is located inside the box body, and the second groove structure The lower edge of the lower edge is connected to the upper edge of the door body, the second groove structure is located outside the box body, and the first groove structure and the second groove structure extend into each other's grooves , the second groove structure is sealed and connected to the first groove structure through a sealing strip filled therebetween;

A shielding structure is also provided on the side wall of the box body provided with the opening, and the shielding structure is located above the opening and extends along the upper edge of the opening.

An LED splicing display system, comprising a plurality of LED display modules described in any one of the above and a cooling circuit structure, the cooling pipes of the plurality of LED display modules are all connected to the cooling circuit structure to realize the cooling of the cooling liquid. Circular flow; the plurality of LED display modules are spliced in a rectangular array to form a spliced display interface.

In the LED splicing display system of the present invention, the cooling circuit structure includes:

A cooling liquid processing mechanism, which has a cooling liquid output port, a cooling liquid inflow port, and a cooling liquid cooling and pressurizing component communicated with the cooling liquid output port and the cooling liquid inflow port;

A cooling liquid return pipeline, one end of which is connected to the cooling liquid inlet, and the other end is used to recover the cooling liquid flowing out of the cooling pipe of the LED display module;

A cooling liquid outflow pipeline, one end of which is connected to the cooling liquid output port, and the other end is used to deliver the cooling liquid to the cooling pipe of the LED display module.

In the LED splicing display system according to the present invention, the array composed of the plurality of LED display modules includes at least two areas, each of which includes at least two rows of LED display modules, and within the same area , the cooling pipes of each of the LED display modules in the same column are cascaded through cascading pipelines;

The coolant outflow pipeline includes a coolant outflow main road and at least two coolant outflow branches, one end of the coolant outflow main road is connected to the coolant outlet, and the other end of the coolant outflow main road is One end is connected to one end of each of the cooling liquid outflow branches, and the other end of each of the cooling liquid outflow branches is respectively connected to the liquid inlet end of the cooling pipe of the first row of LED display modules in one of the regions;

The cooling liquid return pipeline includes a cooling liquid returning main road and at least two cooling liquid returning branches, one end of the cooling liquid returning main road is connected to the cooling liquid inlet, and the other end of the cooling liquid returning main road is One end is connected to one end of each cooling liquid return branch, and the other end of each cooling liquid return branch is respectively connected to the liquid outlet of the cooling pipe of the LED display module in the last row of one of the regions.

The LED display module and the LED splicing display system provided by the present invention dissipate heat from the power supply components through the cooling pipes arranged in the box, which can improve the heat dissipation efficiency and effect, and can prevent water vapor and dust in the environment from entering it without the need for air flow. , which is good for maintenance.

Description of drawings

FIG. 1 is a schematic perspective view of a plane perspective structure of an LED display module in some embodiments of the present invention.

Fig. 2 is a schematic diagram of a side view perspective structure of an LED display module in some embodiments of the present invention.

FIG. 3 is a schematic diagram of a partially enlarged structure of the region A1 in FIG. 2 .

Fig. 4 is a schematic structural diagram of a display panel assembly in some embodiments of the present invention.

Fig. 5 is a schematic structural diagram of an LED splicing display system in some embodiments of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

Please refer to FIG. 1 and FIG. 2 at the same time. FIG. 1 is a schematic structural diagram of an LED display module in an embodiment of the present invention. The LED display module 100 includes: a box body 101 , an LED display panel assembly 102 , a cooling pipe 103 and a power supply assembly 104 . Wherein, the LED display panel assembly 102 is arranged on the front of the box body 101 for displaying images, and the power supply assembly 104 is arranged in the box body 101 and electrically connected with the LED display panel assembly 102 for controlling its display. The cooling pipe 103 is disposed on the box body 101 and contacts the power component 104 to dissipate heat from the power component 104 .

Specifically, the box body 101 is roughly in the shape of a flat cuboid. The back of the box body 101 is provided with at least one opening and a door 1011 for covering the opening. Wherein, the number of the openings is not limited, and may be one or two. Correspondingly, the number of the door bodies 1011 is the same as the number of openings. Both the opening and the door body 1011 are substantially rectangular. The door body 1011 is rotatably connected to a vertical side of the opening through a rotatable connection mechanism, which may be specifically a hinge or a rotating shaft. In this embodiment, there are two doors, and the two doors 1011 are symmetrically arranged on the back of the box 101 at intervals. Wherein, the box body 101 is provided with a first through hole and a second through hole for the two ends of the cooling pipe 103, wherein the first through hole and the second through hole are arranged on the two doors one above the other. The area between the bodies 1011.

Wherein, a lock structure is provided between the door body 1011 and the box body 101, and the lock structure can be opened by a key. Of course, a sealing mechanism, such as a waterproof strip, is also provided between the edge of the door body 1011 and the edge of the opening.

Wherein, the box body 101 is also provided with an inlet and outlet hole for the signal line, and of course, a sealing structure, such as a sealant, is provided at the inlet and outlet hole.

For example, referring to FIG. 3 , in some embodiments, a sealing structure 1013 is provided at the upper edge of the opening to prevent dust and moisture from entering the box body 101 from the upper edge. The sealing structure 1013 includes a first groove structure 10131 and a second groove structure 10132, both of the first groove structure 10131 and the second groove structure 10132 extend along the direction of the upper edge of the opening, so The upper edge of the first groove structure 10131 is connected to the upper edge of the inner side of the opening and the first groove structure 10131 is located inside the box body 101, and the lower edge of the second groove structure 10132 is connected to the inner side of the opening. The upper edge of the door body 1011 is connected, the second groove structure 10132 is located outside the box body 101, the first groove structure 10131 and the second groove structure 10132 extend into each other's grooves Inside, the second trench structure 10132 is sealed and connected to the first trench structure 10131 through a sealing strip seal 10133 filled therebetween. A shielding structure 1012 is also disposed on the side wall of the box 101 provided with the opening, and the shielding structure 1012 is located above the opening and extends along the upper edge of the opening.

Please refer to FIG. 4 at the same time, the LED display panel assembly 102 is formed by splicing a plurality of LED display panels 1021 . Multiple LED display panels 1021 are closely arranged in a rectangular array.

Please continue to refer to FIG. 1 and FIG. 2 , the cooling pipe 103 is arranged in the box body 101 and its liquid inlet and liquid outlet are respectively connected and communicated with the first through hole and the second through hole, and the power supply assembly 104 Contact with the cooling pipe 103 to dissipate heat. Wherein, the cooling pipe 103 is fixed by a supporting connecting rod 1034 disposed in the box body 101 .

Wherein, the cooling pipe 103 extends in a meandering manner in the box body 101 to increase the contact area with the power supply assembly 104 .

Specifically, in some embodiments, the power supply assembly 104 includes at least two power supply subassemblies 1041, for example, it has four power supply subassemblies 1041 in this embodiment, of course it is not limited thereto, it can be 3, 5 wait. It can also be packaged as a whole, or it can be arranged on multiple circuit boards. The power supply component 104 is used to process the input voltage and provide appropriate voltage to each LED display panel 1021 .

When the power supply assembly 104 includes at least two power supply subcomponents 1041, for example, it has four power supply subcomponents 1041 in this embodiment, the cooling pipe 103 includes a liquid inlet main pipe 1031, a liquid outlet main pipe 1032 and at least two Cool branch pipe 1033. One end of the main liquid inlet pipe 1031 is connected to the first through hole, the other end of the main liquid inlet pipe 1031 is connected to one end of each of the cooling branch pipes 1033, and the other end of each of the cooling branch pipes 1033 It is connected to one end of the main liquid outlet pipe 1032, and the other end of the main liquid outlet pipe 1032 is connected to the second through hole; each of the cooling branch pipes 1033 is in contact with at least one of the power supply sub-components 1041 respectively for heat dissipation. For example, in this embodiment, each cooling branch pipe 1033 contacts two power sub-components 1041 respectively.

Wherein, in this embodiment, each cooling branch pipe 1033 extends in a meandering manner to form a plurality of circuitous sections 10331, so that the corresponding power supply sub-component 1041 is in contact with at least two circuitous sections 10331 corresponding to the cooling branch pipe 1033, thereby Improve cooling efficiency.

Please refer to FIG. 5 , which is a structural diagram of an LED splicing display system in some embodiments of the present invention. The LED splicing display system includes a plurality of LED display modules 100 and a cooling loop structure 200, wherein the LED display module 100 is the LED display module 100 in any of the above-mentioned embodiments. The cooling pipes of the plurality of LED display modules 100 are all connected to the cooling circuit structure 200 to realize the circulating flow of cooling liquid; the plurality of LED display modules 100 are spliced in a rectangular array to form a spliced display interface.

Specifically, in some embodiments, the cooling circuit structure 200 includes: a coolant processing mechanism 201 , a coolant return pipeline 202 and a coolant outflow pipeline 203 . The cooling liquid processing mechanism 201 has a cooling liquid output port, a cooling liquid inflow port, and a cooling liquid cooling and pressurizing assembly respectively communicated with the cooling liquid output port and the cooling liquid inflow port; the cooling liquid cooling and pressurizing assembly is used for The returned cooling liquid is subjected to heat dissipation and cooling treatment, and the cooling liquid after the heat dissipation and cooling treatment is pressurized, and then the pressurized cooling liquid is discharged to the cooling liquid outflow pipeline 203 through the cooling liquid output port. One end of the cooling liquid return pipeline 202 is connected to the cooling liquid inlet, and the other end is used to recover the cooling liquid flowing out of the cooling pipe of the LED display module 100 . One end of the cooling liquid outlet pipe 203 is connected to the cooling liquid output port, and the other end is used to deliver the cooling liquid to the cooling pipe of the LED display module 100 .

In some embodiments, the cooling circuit structure 200 connects the cooling pipes of the plurality of LED display modules 100 in series, or in parallel or in a combination of series and parallel.

In some embodiments, the array formed by the plurality of LED display modules 100 includes at least two areas 100a\100b, wherein each of the areas 100a\100b includes at least two rows of LED display modules 100, in the same said In the regions 100a\100b, the cooling pipes of the LED display modules 100 in the same row are cascaded through cascading pipelines.

Wherein, the coolant outflow pipeline 203 includes a coolant outflow trunk road 2031 and at least two coolant outflow branches 2032, one end of the coolant outflow trunk road 2031 is connected to the coolant outlet, and the coolant outflow The other end of the outflow main road 2031 is connected to one end of each of the cooling liquid outflow branches 2032, and the other end of each of the cooling liquid outflow branches 2032 is respectively connected to the first row of LED display in one of the regions 100a\100b The liquid inlet end of the cooling pipe of the module 100 is connected. The coolant return pipeline 202 includes a coolant return trunk 2021 and at least two coolant return branches 2022, one end of the coolant return trunk 2021 is connected to the coolant inlet, and the coolant return trunk The other end of 2021 is connected to one end of each cooling liquid return branch 2022, and the other end of each cooling liquid return branch 2022 is respectively connected to the cooling of the LED display module 100 in the last row of an area 100a\100b. Connect the outlet end of the tube. In this way, the cooling pipes of the LED display module 100 are connected in series and parallel, which can improve cooling uniformity and cooling efficiency.

The LED display module and the LED splicing display system provided by the present invention dissipate heat from the power supply components through the cooling pipes arranged in the cabinet, which can improve the heat dissipation efficiency and effect.

In the description of this specification, reference to the terms "one embodiment", "certain embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. Specific features, structures, materials, or characteristics described in the preceding embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention, and those of ordinary skill in the art can make various modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope defined in the claims.

Claims (10)

1. The utility model provides a LED display module assembly which characterized in that includes:

The box body is provided with a first through hole and a second through hole;

The LED display panel assembly is arranged on the front surface of the box body;

the power supply assembly is arranged in the box body, is electrically connected with the LED display panel assembly and is used for controlling the LED display panel assembly to display;

And the cooling pipe is arranged in the box body, the liquid inlet end and the liquid outlet end of the cooling pipe are respectively connected and communicated with the first through hole and the second through hole, and the power supply assembly is contacted with the cooling pipe to dissipate heat.

2. The LED display module of claim 1, wherein the cooling tube extends in a serpentine pattern within the housing.

3. the LED display module of claim 1 or 2, wherein the power supply assembly comprises at least two power supply sub-assemblies;

the cooling pipe comprises a liquid inlet main pipe, a liquid outlet main pipe and at least two cooling branch pipes;

one end of the liquid inlet trunk pipe is connected with the first through hole, the other end of the liquid inlet trunk pipe is connected with one end of each cooling branch pipe, the other end of each cooling branch pipe is connected with one end of the liquid outlet trunk pipe, and the other end of the liquid outlet trunk pipe is connected with the second through hole; each cooling branch pipe is respectively contacted with at least one power supply branch part to dissipate heat.

4. The LED display module of claim 3, wherein each of the cooling branches meander to form a plurality of meander sections, such that the corresponding power supply sub-assembly contacts at least two meander sections of the corresponding cooling branch.

5. The LED display module of claim 3, wherein the LED display panel assembly is formed by splicing a plurality of LED display panels.

6. The LED display module of claim 1, wherein the back of the box body is provided with at least one opening, and each opening is provided with a door body for closing the opening;

A sealing structure for preventing dust and moisture from entering the box body from the upper edge is arranged at the upper edge of the opening.

7. The LED display module according to claim 6, wherein the sealing structure comprises a first groove structure and a second groove structure, the first groove structure and the second groove structure both extend along the direction of the upper edge of the opening, the upper edge of the first groove structure is connected with the upper edge of the inner side of the opening, the first groove structure is positioned on the inner side of the box body, the lower edge of the second groove structure is connected with the upper edge of the door body, the second groove structure is positioned on the outer side of the box body, the first groove structure and the second groove structure mutually extend into the grooves of the other side, and the second groove structure is in sealing connection with the first groove structure through a sealing strip filled between the first groove structure and the second groove structure;

The side wall of the box body, which is provided with an opening, is also provided with a shielding structure, and the shielding structure is positioned above the opening and extends along the upper edge of the opening.

8. An LED tiled display system, comprising a plurality of LED display modules according to any of claims 1-7 and a cooling circuit structure, wherein the cooling pipes of the LED display modules are connected to the cooling circuit structure to realize the circulation of cooling liquid; the LED display modules are spliced in a rectangular array to form a spliced display interface.

9. The LED tiled display system according to claim 8, wherein the cooling circuit structure comprises:

A coolant handling mechanism having a coolant output port, a coolant flow inlet, and a coolant cooling and pressurizing assembly in communication with the coolant output port and the coolant flow inlet, respectively;

One end of the cooling liquid return pipeline is connected with the cooling liquid inlet, and the other end of the cooling liquid return pipeline is used for recovering cooling liquid flowing out of the cooling pipe of the LED display module;

And one end of the cooling liquid outflow pipeline is connected with the cooling liquid output port, and the other end of the cooling liquid outflow pipeline is used for conveying cooling liquid to the cooling pipe of the LED display module.

10. The LED tiled display system according to claim 9, wherein the array of LED display modules comprises at least two zones, wherein each zone comprises at least two rows of LED display modules, and the cooling tubes of the LED display modules in the same column are cascaded through a cascade pipeline in the same zone;

the cooling liquid outflow branch circuit comprises a cooling liquid outflow main circuit and at least two cooling liquid outflow branch circuits, one end of the cooling liquid outflow main circuit is connected with the cooling liquid output port, the other end of the cooling liquid outflow main circuit is connected with one end of each cooling liquid outflow branch circuit, and the other end of each cooling liquid outflow branch circuit is respectively connected with the liquid inlet end of the cooling pipe of the first row of LED display modules in one region;

The cooling liquid return line comprises a cooling liquid return main line and at least two cooling liquid return branch lines, one end of the cooling liquid return main line is connected with the cooling liquid inlet, the other end of the cooling liquid return main line is connected with one end of each cooling liquid return branch line, and the other end of each cooling liquid return branch line is connected with the liquid outlet end of the cooling pipe of the LED display module in the tail line of the area.