LED display module and display screen

Abstract

The present invention provides an LED display module and a display screen. The LED display module includes a main frame, a module assembly and a rear cover part. The main frame includes a plurality of module installation positions with support frame strips. The module assembly includes a module body, which is arranged on the module installation position and is magnetically connected to the main frame; the rear cover part includes a rear cover shell, a power supply, and a control board. The rear cover shell bulges backward and is recessed inward to form a receiving groove. The receiving groove has an opening toward the module assembly. The power supply and the control board are controlled and connected. Both are fixed in the receiving groove, and a socket is provided on the rear cover shell; at least one of the support frame strips can provide a rear cover support position, and the rear cover shell can be detachably installed on the rear cover support position. The rear cover shell is provided with an electrical connection mortise and a positioning column, and the rear cover support position is provided with an electrical connection mortise seat and a positioning seat. The present invention can be maintained from the front without tools, and can also be maintained from the rear end. It is easy to install and disassemble, and has low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to an LED display module and a display screen capable of being tool-free maintained from the front end. Background Art

[0002] Large LED display screens are generally formed by splicing LED display screen cabinets one by one, and the LED display screen cabinet is composed of LED display modules installed on the cabinet frame by magnetic attraction. After the LED display screen cabinets installed by magnetic attraction are assembled into LED display screens, it is generally difficult to maintain the display screen.

[0003] At present, the main ways to implement display screen maintenance are:

[0004] The locking structure is to use a tool to insert the module from the front of the module, the module is opened, and the locking structure installed at the bottom of the module is rotated by the tool to realize the module disassembly and installation from the front;

[0005] The magnetic attraction structure is to install several permanent magnets at the bottom of the module and on the surface of the box, and fix the module by the magnetic attraction between the magnets. A piece of magnetic metal, usually iron, is installed inside the module, and a magnet with stronger magnetic force is installed in another tool. When removing the module, the tool is pressed against the module and the module is removed by the magnetic attraction.

[0006] However, in the above-mentioned prior art, the display screen power supply and control part cannot be maintained from the front end. When the display screen power supply and control part fail, the front end display module still needs to be completely removed, which is a great inconvenience. Summary of the invention

[0007] In view of the defects of the prior art, the present invention provides an LED display module and a display screen, which can be maintained from the front end without tools and can also be maintained from the back end, and are easy to install and disassemble and have low cost.

[0008] In order to achieve the above object, the present invention provides an LED display module, comprising a main frame, a module assembly and a rear cover part, wherein the module assembly is arranged on the front side of the main frame; the rear cover part is arranged on the back side of the main frame;

[0009] The main frame includes a plurality of module mounting positions with supporting frame bars, and the module assembly includes a module body whose shape matches the module mounting position, and the module body is arranged on the module mounting position and is magnetically connected to the main frame;

[0010] The rear cover part includes a rear cover shell, a power supply, and a control board. The rear cover shell bulges backward and is recessed inward to form a receiving groove. The receiving groove has an opening toward the module assembly. The power supply and the control board are controlled and connected. Both are fixed on the receiving groove. A socket is opened on the rear cover shell.

[0011] Among them, at least one of the supporting frame bars can provide a back cover support position, and the back cover shell can be detachably installed on the back cover support position. The back cover shell is provided with an electrical connection mortise and a positioning column, and the back cover support position is provided with an electrical connection mortise and a positioning seat. The electrical connection mortise and the electrical connection mortise are connected, and the positioning column and the positioning seat are connected.

[0012] In the above technical solution of the present invention, the back cover part can be disassembled as a whole from the main frame, wherein the display screen power supply and control part are centrally prefabricated on the back cover part, and there is a contact-type quick connection method between the back cover part and the main frame, which is convenient for disassembly and maintenance in case of failure.

[0013] The rear cover part can be directly disassembled from the rear end, or it can be inserted through the front end module installation position (when removing the module assembly there).

[0014] Furthermore, in the present invention, the display screen power supply and control part are integrated on the rear cover shell to facilitate the integrated production of the device, and integrating it in the receiving groove can form protection and has good structural regularity.

[0015] According to another specific embodiment of the present invention, the rear cover shell is disposed on the rear cover support position and is magnetically connected to the main frame.

[0016] According to another specific embodiment of the present invention, a locking installation position is further provided on the rear cover shell, on which a locking bolt is provided, wherein a threaded hole matching with the locking bolt is provided on the rear cover support position.

[0017] According to another specific embodiment of the present invention, two sockets are provided, one of which is connected to the power supply and serves as the input and output interface of the power supply, and the remaining socket is connected to the control board and is used as the signal input and output socket of the control board.

[0018] According to another specific embodiment of the present invention, the electrical connection mortise comprises an upper connection mortise and a lower connection mortise, and the upper connection mortise and the lower connection mortise are respectively connected to a power source and a control board.

[0019] According to another specific embodiment of the present invention, at least two positioning posts are provided, the two positioning posts are located on both sides of the electrical connection post, and the two positioning posts and the electrical connection post are flush, that is, the two positioning posts and the electrical connection post are located on the same straight line, wherein the positioning posts located on both sides can provide accurate connection positions for the electrical connection post to improve the accuracy of the connection.

[0020] According to another specific embodiment of the present invention, the back cover part further includes a silicone ring, a raised limiting step is provided on the back cover support position, the back cover shell is provided with a locking piece that cooperates with the limiting step, the locking piece is nested on the limiting step, and the silicone ring is located at the connection between the locking piece and the limiting step.

[0021] According to another specific embodiment of the present invention, a hole for the control panel working status indicator light to pass through is provided on the rear cover shell.

[0022] According to another specific embodiment of the present invention, a plurality of support frame bars are arranged in a horizontal and vertical cross manner.

[0023] According to another specific embodiment of the present invention, two matching handles are provided on the main frame, and the two handles are arranged on one side of the back side of the main frame.

[0024] The present invention also provides a display screen formed by splicing the above-mentioned LED display modules.

[0025] The present invention has the following beneficial effects:

[0026] The LED display module of the present invention can be disassembled and maintained from the front end for the display screen power supply and control part, and can also be disassembled and maintained from the rear end for the display screen power supply and control part. The entire rear cover part is easy to disassemble and has high maintenance efficiency.

[0027] In addition, the display screen power supply and control are integrated in the rear cover shell, which improves the integration of display screen accessories. After installation, the connection between the power supply and control part and the module components on the main frame is automatically established, which is convenient and easy to operate.

[0028] In addition, a unique connection structure formed between the electrical connection mortise and the electrical connection mortise, and between the positioning mortise and the positioning mortise, is provided, which can ensure the accuracy of the connection and facilitate the connection process.

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the LED display module of the present invention;

[0031] Figure 2 is a schematic structural diagram of the LED display module of the present invention, which shows the front side of the main frame;

[0032] Figure 3 is a schematic structural diagram of the LED display module of the present invention, which shows the back side of the main frame;

[0033] Figure 4 It is a structural schematic diagram of the rear cover part of the LED display module of the present invention;

[0034] Figure 5 yes Figure 4 Front view of . DETAILED DESCRIPTION

[0035] An LED display module, such as Figure 1-5 As shown, it includes a main frame 10, a module assembly 20 and a rear cover part 30, wherein the module assembly 20 is arranged on the front side of the main frame 10; and the rear cover part 30 is arranged on the back side of the main frame 10.

[0036] The main frame 10 in this example is a square structure, which includes an outer frame 11 and a cross-shaped support frame bar 12, which can provide four module installation positions 13. The module assembly 20 includes a module body 21 whose shape is adapted to the module installation position 13. The module body 21 is arranged on the module installation position 13 and is magnetically connected to the main frame 10. The specific magnetic attraction connection can adopt an existing magnetic attraction structure, and its structure will not be described in detail here. The outer frame 11 adopts a structure that is spliced ​​with each other, which can be spliced ​​with each other, and the structure will not be described in detail here.

[0037] The back cover part 30 includes a back cover shell 31, a power supply 32, and a control board 33. The back cover shell 31 bulges backward and is recessed inward to form a receiving groove 34. The receiving groove 34 has an opening toward the module assembly 20. The power supply 32 is controlled and connected to the control board 33, and both are fixed on the receiving groove 34.

[0038] One of the support frame bars 12 in this example can provide a back cover support position 14, and the back cover shell 31 can be detachably mounted on the back cover support position 14, wherein the back cover shell 31 is arranged on the back cover support position 14 and is magnetically connected to the main frame 10. A preferred structure is that a plurality of permanent magnets are provided on the back cover shell 31, and a suction block is provided at a position on the support frame bar 12 that cooperates with the plurality of permanent magnets to achieve the suction of the back cover shell 31 and the support frame bar 12.

[0039] Further, after the rear cover shell 31 is connected to the corresponding rear cover support position 14 by magnetic attraction, for example, a powered coil is embedded in the position where the rear cover shell 31 contacts the rear cover support position 14, and a metal strip is embedded in the position where the rear cover support position 14 matches it, and the coil is first energized to generate a set magnetic attraction force to achieve the effect of magnetic attraction;

[0040] Then completely locked by mechanical locking, a preferred structure is as follows Figure 1As shown, locking mounting positions 15 are provided above and below the rear cover shell 31, and threaded holes 151 cooperating with the locking bolts are provided on the locking mounting positions 15, and locking is performed by means of bolts, wherein the locking bolts are manual locking bolts, which are directly prefabricated on the rear cover shell 31, and are provided with tightening knobs, which can be locked manually without the aid of tools (wrench).

[0041] In this example, a unique connection positioning structure is set up to achieve connection accuracy to ensure communication and discharge control, wherein an electrical connection mortise 311 and a positioning column 312 are provided on the rear cover shell 31, and an electrical connection mortise and a positioning seat are provided on the rear cover support position 14, the electrical connection mortise 311 is connected to the electrical connection mortise, and the positioning column 312 is connected to the positioning seat.

[0042] Preferably, the electrical connection mortise 311 includes an upper connection mortise 311a and a lower connection mortise 311b, and the upper connection mortise 311a and the lower connection mortise 311b are both connected to the power supply 32 and the controller to achieve parallel connection to ensure connection.

[0043] Further, such as Figure 4 , Figure 5 Two upper connecting posts 311a and two lower connecting posts 311b are provided to respectively and simultaneously perform discharge control of the power source 32 and communication with the control board 33.

[0044] In this example, in order to ensure quick and accurate assembly, at least two positioning posts 312 are provided, and the two positioning posts 312 and the electrical connection posts 311 are located on the same straight line. Figure 4 , Figure 5 The two positioning posts 312 are located on both sides of the electrical connection post 311, that is, two positioning posts 312 are provided on both sides of the upper connection post 311a, and two positioning posts 312 are also provided on both sides of the lower connection post 311b.

[0045] In this example, a preferred process for front-end maintenance of the power supply 32 and the control part is:

[0046] After removing one of the display modules, the operator puts his hand through the module installation position 13 of the disassembled display module, loosens the locking bolts in turn, and then uses force to offset the suction force between the rear cover shell 31 and the main frame 10, so that the rear cover part 30 can be easily removed. At this time, the rear cover part 30 can be taken out from the module installation position 13 of the disassembled display module.

[0047] When the main frame 10 is used in other larger structures, the rear cover portion 30 can be offset to facilitate assembly and disassembly.

[0048] In this example, two sockets 313 are opened on the rear cover shell 31, one socket 313a is connected to the power supply 32 and serves as the input and output interface of the power supply 32, and the remaining socket 313b is connected to the control board 33 and is used as the signal input and output socket of the control board 33.

[0049] In order to display its working status, a lamp hole 314 is further provided on the rear cover shell 31 for passing the working status indicator light of the control panel 33 to display its working status, so as to facilitate the debugging and use process.

[0050] In other preferred examples of the present invention, a silicone ring can also be provided between the back cover shell 31 and the back cover support position 14. For example, a raised limiting step is provided on the back cover support position 14, and the back cover shell 31 is provided with a locking piece that cooperates with the limiting step. The locking piece is nested on the limiting step, and the silicone ring is located at the connection between the locking piece and the limiting step.

[0051] Specifically, in this example, two matching handles 16 are provided on the main frame 10 . The two handles 16 are arranged on one side of the back side of the main frame 10 to facilitate the grasping of the main frame 10 .

[0052] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some improvements without departing from the scope of the present invention, that is, all equivalent improvements made according to the present invention should be covered by the scope of the present invention.

Claims

1. An LED display module, characterized in that: include: Main frame; A module assembly is arranged on the front side of the main frame; as well as A rear cover part, arranged on the back side of the main frame; The main frame includes a plurality of module mounting positions with supporting frame bars, the module assembly includes a module body whose shape matches the module mounting position, the module body is arranged on the module mounting position and is magnetically connected to the main frame; The rear cover portion includes a rear cover shell, a power supply, and a control board. The rear cover shell bulges backward and is recessed inward to form a receiving groove. The receiving groove has an opening facing the module assembly. The power supply and the control board are controlled and connected. Both are fixed on the receiving groove. Two sockets are provided on the rear cover shell; one of the sockets is connected to the power supply and serves as an input and output interface of the power supply, and the remaining socket is connected to the control board and is used as a signal input and output socket of the control board. Among them, at least one of the support frame bars can provide a back cover support position, and the back cover shell can be detachably installed on the back cover support position, and the back cover shell is provided with an electrical connection mortise and at least two positioning columns, and the two positioning columns are located on both sides of the electrical connection mortise, and the two positioning columns and the electrical connection mortise are flush with each other; the back cover support position is provided with an electrical connection mortise and a positioning seat, and the electrical connection mortise is connected to the electrical connection mortise, and the positioning column is connected to the positioning seat.

2. The LED display module according to claim 1, characterized in that: The rear cover shell is arranged on the rear cover support position and is magnetically connected to the main frame.

3. The LED display module according to claim 2, characterized in that: The rear cover shell is also provided with a locking installation position, on which a locking bolt is provided, and the rear cover support position is provided with a threaded hole that matches the locking bolt.

4. The LED display module according to claim 1, characterized in that: The electrical connection mortise comprises an upper connection mortise and a lower connection mortise, and the upper connection mortise and the lower connection mortise are respectively connected to the power supply and the control board.

5. The LED display module according to claim 1, characterized in that: The back cover part further includes a silicone ring, a raised limiting step is provided on the back cover support position, the back cover shell is provided with a locking piece that cooperates with the limiting step, the locking piece is nested on the limiting step, and the silicone ring is located at the connection between the locking piece and the limiting step.

6. The LED display module according to claim 1, characterized in that: The rear cover shell is provided with a hole for the working status indicator light of the control panel to pass through.

7. The LED display module according to claim 1, characterized in that: The main frame is provided with two matching handles, and the two handles are arranged on one side of the back side of the main frame.

8. A display screen formed by splicing the LED display modules according to any one of claims 1 to 7.

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