CN110570781A - LED display module and LED splicing display system - Google Patents
LED display module and LED splicing display system Download PDFInfo
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- CN110570781A CN110570781A CN201910936383.6A CN201910936383A CN110570781A CN 110570781 A CN110570781 A CN 110570781A CN 201910936383 A CN201910936383 A CN 201910936383A CN 110570781 A CN110570781 A CN 110570781A
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- 238000001816 cooling Methods 0.000 claims abstract description 92
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000000110 cooling liquid Substances 0.000 claims description 87
- 239000002826 coolant Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20981—Liquid coolant without phase change
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Multimedia (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
Abstract
The invention provides an LED display module and an LED splicing display system, wherein the LED display module comprises: 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. According to the LED display module and the LED tiled display system, the cooling pipe arranged in the box body is used for cooling the power supply assembly, so that the cooling efficiency and the cooling effect can be improved.
Description
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
the LED display screen is continuously applied in various fields by virtue of various advantages of high brightness, controllability, long service life, energy conservation, safety and the like. The outdoor advertising signboard is one of the earlier applied fields of LED display screen, and two major shortcomings always exist in the in-service use. The first disadvantage is that the door at the back of the box is of non-sealed structure and has a low protection grade. The heat that module back drive circuit and device during operation produced and the heat that the display screen switching power supply during operation produced all are detained inside the box, can't effectively discharge. Therefore, an air inlet and outlet device is required to be added at the rear part of the box body to effectively discharge the heat inside the box body. The air inlet and the air outlet devices added at the rear part of the box body need to be provided with holes so as to be beneficial to the circulation of air. Therefore, the protection grade behind the box body is lower, dust and humid air can smoothly enter the box body, and the normal work of the module back driving circuit, devices, the display screen switching power supply, the control system and other components is seriously influenced. A second disadvantage is the heat dissipation problem of LED displays. If the axial flow fan is adopted, the heat dissipation efficiency is high, but the noise is high; if adopt air conditioner refrigeration, the radiating efficiency is higher, but the cost of action is higher, and these two kinds of modes all need seal the rear portion of LED display screen and handle moreover, greatly increased the degree of difficulty of site operation and later maintenance.
Therefore, the prior art has defects and needs to be improved urgently.
disclosure of Invention
the invention aims to provide an LED display module and an LED splicing display system, which can improve the heat dissipation effect of a power supply assembly in a box body.
the invention provides an LED display module, comprising:
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.
In the LED display module of the present invention, the cooling tube extends in a winding and meandering manner in the case.
In the LED display module of the present invention, the power supply assembly includes 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.
in the LED display module of the present invention, each of the cooling branch pipes extends in a winding manner to form a plurality of winding sections, so that the corresponding power sub-assembly is in contact with at least two winding sections of the corresponding cooling branch pipe.
in the LED display module, the LED display panel assembly is formed by splicing a plurality of LED display panels.
In the LED display module, the back surface 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.
In the LED display module of the present invention, the sealing structure includes 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 and the first groove structure is located inside 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 located outside the box body, the first groove structure and the second groove structure extend into the grooves of the other side, and the second groove structure and the first groove structure are connected in a sealing manner by a sealing strip filled therebetween;
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.
An LED tiled display system comprises a plurality of LED display modules and a cooling loop structure, wherein cooling pipes of the LED display modules are connected into the cooling loop structure to realize the circulating flow of cooling liquid; the LED display modules are spliced in a rectangular array to form a spliced display interface.
In the LED tiled display system of the present invention, the cooling circuit structure includes:
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.
in the LED tiled display system, an array formed by the LED display modules comprises at least two areas, wherein each area comprises at least two lines of LED display modules, and cooling pipes of the LED display modules in the same row are cascaded through a cascade pipeline in the same area;
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.
According to the LED display module and the LED tiled display system, the cooling pipe arranged in the box body is used for cooling the power supply assembly, so that the cooling efficiency and the cooling effect can be improved, air flow is not needed, water vapor and dust in the environment can be prevented from entering the cooling pipe, and the LED tiled display module and the LED tiled display system are beneficial to maintenance.
drawings
Fig. 1 is a schematic plan perspective structure diagram of an LED display module according to some embodiments of the present invention.
Fig. 2 is a schematic side perspective view of an LED display module according to some embodiments of the invention.
Fig. 3 is a partially enlarged schematic view of a region a1 in fig. 2.
FIG. 4 is a schematic diagram of a display panel assembly according to some embodiments of the invention.
Fig. 5 is a schematic structural diagram of an LED tiled display system according to some embodiments of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an LED display module according to an embodiment of the present invention. The LED display module 100 includes: a housing 101, an LED display panel assembly 102, a cooling tube 103, and a power supply assembly 104. The LED display panel assembly 102 is disposed on the front surface of the box 101 for displaying images, and the power supply assembly 104 is disposed in the box 101 and electrically connected to the LED display panel assembly 102 for controlling the display thereof. The cooling pipe 103 is provided in the case 101 and contacts the power module 104 to dissipate heat of the power module 104.
Specifically, the case 101 has a substantially flat rectangular parallelepiped shape. The rear surface of the cabinet 101 is provided with at least one opening and a door 1011 for covering the opening. The number of the openings is not limited, and may be 1 or two. Correspondingly, the number of the door bodies 1011 is the same as the number of the openings. The opening and the door 1011 are both substantially rectangular. The door body 1011 is rotatably connected to one vertical side of the opening through a rotary connection mechanism, and may be a hinge or a rotating shaft. In this embodiment, the number of the door bodies is two, and the two door bodies 1011 are disposed at intervals symmetrically on the back surface of the cabinet 101. The cabinet 101 is provided with a first through hole and a second through hole for the two ends of the cooling pipe 103 to use, wherein the first through hole and the second through hole are arranged in the area between the two door bodies 1011 at a position above and below.
A lock catch structure is arranged between the door 1011 and the box 101, and the lock catch structure can be opened by a key. Of course, a sealing mechanism, such as a waterproof strip, is provided between the edge of the door body 1011 and the edge of the opening.
The box 101 is further provided with an access hole for a signal line, and a sealing structure, such as a sealant, is disposed at the access hole.
for example, referring also to fig. 3, in some embodiments, a sealing structure 1013 is provided at an upper edge of the opening to prevent dust and moisture from entering the case 101 from the upper edge. The sealing structure 1013 includes a first groove structure 10131 and a second groove structure 10132, the first groove structure 10131 and the second groove structure 10132 both extend along the direction of the upper edge of the opening, the upper edge of the first groove structure 10131 is connected with the upper edge of the inner side of the opening, the first groove structure 10131 is located inside the box 101, the lower edge of the second groove structure 10132 is connected with the upper edge of the door 1011, the second groove structure 10132 is located outside the box 101, the first groove structure 10131 and the second groove structure 10132 extend into the grooves of each other, and the second groove structure 10132 and the first groove structure 10131 are connected in a sealing manner through a sealing strip seal 10133 filled therebetween. The side wall of the box 101, which is provided with an opening, is further provided with a shielding structure 1012, and the shielding structure 1012 is located above the opening and extends along the upper edge of the opening.
Referring to fig. 4, the LED display panel assembly 102 is formed by splicing a plurality of LED display panels 1021. The LED display panels 1021 are closely arranged in a rectangular array.
Referring to fig. 1 and 2, the cooling pipe 103 is disposed in the box 101, and 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 module 104 is in contact with the cooling pipe 103 to dissipate cold. Wherein the cooling pipe 103 is fixed by a support connection bar 1034 disposed in the case 101.
The cooling pipe 103 extends in a meandering manner in the case 101 to increase a contact area with the power module 104.
specifically, in some embodiments, the power module 104 includes at least two power supply sub-assemblies 1041, for example, four power supply sub-assemblies 1041 in this embodiment, but is not limited thereto, and may be 3, 5, and so on. It may be a single package or may be disposed on multiple circuit boards. The power supply assembly 104 is used to process the input voltage and provide the appropriate voltage to each LED display panel 1021.
when the power module 104 includes at least two power sub-modules 1041, for example, four power sub-modules 1041 in this embodiment, the cooling duct 103 includes a liquid inlet main duct 1031, a liquid outlet main duct 1032, and at least two cooling branch ducts 1033. One end of the liquid inlet main pipe 1031 is connected to the first through hole, the other end of the liquid inlet main pipe 1031 is connected to one end of each cooling branch pipe 1033, the other end of each cooling branch pipe 1033 is connected to one end of the liquid outlet main pipe 1032, and the other end of the liquid outlet main pipe 1032 is connected to the second through hole; each of the branch cooling pipes 1033 is in contact with at least one of the power sub-units 1041 for dissipating heat. For example, in the present embodiment, each of the branch cooling pipes 1033 contacts two power supply sub-units 1041.
in this embodiment, each of the branch cooling pipes 1033 extends in a winding and bending manner to form a plurality of winding sections 10331, so that the corresponding power supply sub-assembly 1041 contacts with at least two winding sections 10331 of the corresponding branch cooling pipes 1033, thereby improving the heat dissipation efficiency.
Referring to fig. 5, fig. 5 is a structural diagram of an LED tiled display system according to some embodiments of the present invention. The LED tiled display system includes a plurality of LED display modules 100 and a cooling circuit structure 200, wherein the LED display module 100 is the LED display module 100 in any of the above embodiments. The cooling pipes of the plurality of LED display modules 100 are all connected to the cooling circuit structure 200 to realize the circulation of the cooling liquid; the plurality of LED display modules 100 are connected in a rectangular array to form a tiled display interface.
Specifically, in some embodiments, the cooling circuit structure 200 includes: a coolant processing mechanism 201, a coolant return line 202, and a coolant outflow line 203. The cooling liquid processing mechanism 201 is provided with a cooling liquid output port, a cooling liquid flow inlet and a cooling liquid cooling and pressurizing assembly which is respectively communicated with the cooling liquid output port and the cooling liquid flow inlet; the cooling liquid cooling and pressurizing assembly is used for performing heat dissipation and cooling treatment on the returned cooling liquid, pressurizing the cooling liquid after the heat dissipation and cooling treatment, and then discharging the pressurized cooling liquid to the cooling liquid outflow pipeline 203 through the cooling liquid outlet. One end of the cooling liquid return line 202 is connected to the cooling liquid inlet, and the other end of the cooling liquid return line is used for recovering the cooling liquid flowing out of the cooling pipe of the LED display module 100. One end of the cooling liquid outflow pipeline 203 is connected to a cooling liquid outlet, 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 100.
in some embodiments, the cooling circuit structure 200 connects the cooling pipes of the LED display modules 100 in series, or in parallel, or in a combination of series and parallel.
In some embodiments, the array of the LED display modules 100 includes at least two areas 100a \100b, where each of the areas 100a \100b includes at least two rows of LED display modules 100, and in the same area 100a \100b, the cooling pipes of the LED display modules 100 in the same row are cascaded through a cascade pipeline.
The cooling liquid outflow pipeline 203 includes a cooling liquid outflow main line 2031 and at least two cooling liquid outflow branches 2032, one end of the cooling liquid outflow main line 2031 is connected to the cooling liquid output port, the other end of the cooling liquid outflow main line 2031 is connected to one end of each cooling liquid outflow branch 2032, and the other end of each cooling liquid outflow branch 2032 is connected to the liquid inlet end of the cooling pipe of the first row of LED display modules 100 in the area 100a \100 b. The cooling liquid backflow pipeline 202 includes a cooling liquid backflow main line 2021 and at least two cooling liquid backflow branches 2022, one end of the cooling liquid backflow main line 2021 is connected to the cooling liquid inlet, the other end of the cooling liquid backflow main line 2021 is connected to one end of each cooling liquid backflow branch 2022, and the other end of each cooling liquid backflow branch 2022 is connected to a liquid outlet end of a cooling pipe of the LED display module 100 in the last row of one area 100a \100 b. Therefore, series-parallel mixed connection of the cooling pipes of the LED display module 100 is realized, and the uniformity of cooling and the cooling efficiency can be improved.
According to the LED display module and the LED tiled display system, the cooling pipe arranged in the box body is used for cooling the power supply assembly, so that the cooling efficiency and the cooling effect can be improved.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936383.6A CN110570781A (en) | 2019-09-29 | 2019-09-29 | LED display module and LED splicing display system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936383.6A CN110570781A (en) | 2019-09-29 | 2019-09-29 | LED display module and LED splicing display system |
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| CN110570781A true CN110570781A (en) | 2019-12-13 |
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| CN201910936383.6A Pending CN110570781A (en) | 2019-09-29 | 2019-09-29 | LED display module and LED splicing display system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115209705A (en) * | 2022-07-28 | 2022-10-18 | 惠科股份有限公司 | Backlight module and display device |
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