CN215345352U - Display screen - Google Patents
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- CN215345352U CN215345352U CN202121053043.8U CN202121053043U CN215345352U CN 215345352 U CN215345352 U CN 215345352U CN 202121053043 U CN202121053043 U CN 202121053043U CN 215345352 U CN215345352 U CN 215345352U
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- 238000001179 sorption measurement Methods 0.000 claims abstract description 29
- 230000009471 action Effects 0.000 claims abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 claims description 22
- 238000002955 isolation Methods 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 description 13
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- 229910000838 Al alloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 2
- WBWJXRJARNTNBL-UHFFFAOYSA-N [Fe].[Cr].[Co] Chemical compound [Fe].[Cr].[Co] WBWJXRJARNTNBL-UHFFFAOYSA-N 0.000 description 2
- 229910000828 alnico Inorganic materials 0.000 description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 2
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
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- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
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- 239000004922 lacquer Substances 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
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- 239000004332 silver Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 239000010936 titanium Substances 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
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
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
-
- 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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model provides a display screen, which comprises a plurality of display screen modules, wherein the display screen modules are arranged in parallel; each display screen module comprises a display module, a box body and a connecting assembly, and a circuit board is arranged on each display module; the connecting assembly comprises a first antirust conductive piece, a second antirust conductive piece and a magnetic adsorption piece, wherein the first antirust conductive piece and the magnetic adsorption piece are arranged on the display module, the first antirust conductive piece is connected with a grounding circuit of the circuit board, and the second antirust conductive piece is arranged on the box body; the first antirust conductive piece is abutted with the second antirust conductive piece so as to connect the grounding circuit of the circuit board with the box body; the magnetic adsorption piece and the second antirust conductive piece are located in a magnetic force action range, and the display module and the box body are fixed in an adsorption mode through the magnetic force between the magnetic adsorption piece and the second antirust conductive piece. The display screen provided by the utility model has a good shielding effect and is easy to assemble.
Description
Technical Field
The utility model relates to the technical field of display, in particular to a display screen.
Background
The display screen is an electronic device for displaying information such as characters, images, video screens and the like.
The display screen comprises a display module, a box body and a connecting assembly, wherein the connecting assembly is connected with the display module and the box body. The display module is provided with a circuit board, and a grounding circuit of the circuit board is connected with the box body through a metal piece, so that the box body can have a shielding effect.
However, the position where the metal member is connected to the box body is easily oxidized and rusted, so that the metal member and the box body cannot be effectively conducted, and the shielding effect of the display screen is deteriorated.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, embodiments of the present invention provide a display screen having a good shielding effect and being easy to assemble.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the embodiment of the utility model provides a display screen, which comprises a plurality of display screen modules, wherein the display screen modules are arranged in parallel; each display screen module comprises a display module, a box body and a connecting assembly, the connecting assembly is connected with the display module and the box body, and a circuit board is arranged on the display module; the connecting assembly comprises a first antirust conductive piece, a second antirust conductive piece and a magnetic adsorption piece, wherein the first antirust conductive piece and the magnetic adsorption piece are arranged on the display module, the first antirust conductive piece is connected with a grounding circuit of the circuit board, and the second antirust conductive piece is arranged on the box body; the first antirust conductive piece is abutted with the second antirust conductive piece so as to connect the grounding circuit of the circuit board with the box body; the magnetic adsorption piece and the second antirust conductive piece are located in a magnetic force action range, and when the magnetic adsorption piece and the second antirust conductive piece are mutually adsorbed through magnetic force, the display module and the box body are mutually fixed.
In some optional embodiments, the second rustproof conductive piece is a magnetic piece, the first rustproof conductive piece is a metal piece with elasticity, one end of the first rustproof conductive piece is connected with the circuit board, and the other end of the first rustproof conductive piece is abutted against the second rustproof conductive piece through self elasticity.
In some optional embodiments, the first rustproof conductive component includes a fixing portion, a butting portion and a bending portion connecting the fixing portion and the butting portion, the fixing portion is configured to be connected to the circuit board, and the butting portion abuts against the second rustproof conductive component under an elastic force of the bending portion.
In some optional embodiments, the first rustproof conductive element further comprises stopping parts, wherein the stopping parts are respectively fixed with two sides of the fixing part and extend towards one side of the second rustproof conductive element; the part of the abutting part extends into the stopping part along the vertical direction of the display module.
In some optional embodiments, the magnetic adsorption part and the second antirust conducting part are arranged in a staggered manner in the vertical direction of the magnetic adsorption part.
In some optional embodiments, the projection of the second corrosion-resistant conductive member on the display module covers the first corrosion-resistant conductive member and the magnetic adsorption member.
In some optional embodiments, the magnetic adsorption member and the second antirust conductive member are vertically spaced along the display module.
In some optional embodiments, the connection assembly further includes an isolation capacitor, one end of the isolation capacitor is connected to the ground circuit of the circuit board, and the other end of the isolation capacitor is connected to the box body.
In some alternative embodiments, the isolation capacitor is configured as a surface mount device.
In some optional embodiments, the first rustproof conductive member and the magnetic attraction member are configured as surface mount devices.
In some alternative embodiments, the number of the connecting assemblies is multiple, and the multiple connecting assemblies are arranged at intervals along the circumferential direction of the display module.
Compared with the prior art, the display screen provided by the embodiment of the utility model has the following advantages:
the display screen comprises a display module, a box body and a connecting assembly; the connecting assembly comprises a first rust-proof conductive piece, a second rust-proof conductive piece and a magnetic adsorption piece.
Wherein, the first rust-proof conductive piece and the second rust-proof conductive piece are conductive pieces and have the rust-proof effect. The first rust-proof conductive piece is arranged on the display module and connected with a grounding circuit of a circuit board on the display module, the second rust-proof conductive piece is connected with the box body, and the first rust-proof conductive piece and the second rust-proof conductive piece are in contact with each other, so that the grounding circuit of the circuit board is conducted with the box body. Like this, the box can form a comparatively complete shielding structure, avoids the radiation of display screen to spill over and produce electromagnetic interference to external equipment, also can avoid the display screen to receive electromagnetic interference simultaneously. And because first rust-resistant electrically conductive piece and the rust-resistant electrically conductive piece of second all have rust-resistant effect, first rust-resistant electrically conductive piece and the rust-resistant electrically conductive piece of second all can switch on stably for a long time within range, and shielding effect is better.
The connecting assembly further comprises a magnetic adsorption piece, the magnetic adsorption piece is connected with the display module, and magnetic force is arranged between the magnetic adsorption piece and the second antirust conductive piece. Like this, can make display module and box adsorb fixedly through the magnetic force between the rust-resistant electrically conductive piece of magnetic adsorption piece and the second, for among the prior art, display module and box pass through the mode that threaded fastener links to each other, and the display screen easily assembles in this embodiment.
In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the display screen provided by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display module in a display provided in an embodiment of the present invention;
FIG. 2 is a schematic view of the connecting assembly of FIG. 1;
FIG. 3 is a first schematic structural diagram of the first rustproof conductive device in FIG. 2;
FIG. 4 is a first schematic structural diagram of the first rustproof conductive device in FIG. 2;
fig. 5 is a schematic diagram of distribution of magnetic induction lines of the second rustproof conductive member in fig. 2.
Reference numerals:
10-a display module; 11-a circuit board;
20-a box body; 21-a support part;
31-a first rust-inhibiting electrically conductive member; 311-a fixed part; 312-a top-out portion; 313-a bending part; 314-a stop; 32-second rust-proof conductive piece; 33-a magnetic attraction member; 34-an isolation capacitor;
40-a power supply module;
50-a control module;
x-the vertical direction of the second antirust conductive piece; y-vertical direction of the display module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, the box body of the display screen is usually made of magnesium-aluminum alloy, however, the magnesium-aluminum alloy is easy to generate oxidation reaction with air, so that the circuit board and the box body cannot be effectively conducted, and the shielding effect of the display screen is poor. And in order to avoid the connecting position department of box and circuit board usually can not rust, among the prior art, the box adopts the difficult rusty material usually or switches on position department at box and circuit board and set up the electrically conductive lacquer of plating metal layer or spraying, and the cost is higher.
In view of this, the embodiment of the present application includes a connection assembly for connecting a display module and a box, where the connection assembly includes a first rust-proof conductive component and a second rust-proof conductive component, which are not easy to rust, the first rust-proof conductive component is conducted with a ground circuit of a circuit board, and the second rust-proof conductive component is conducted with the box. Therefore, after the first antirust conductive piece and the second antirust conductive piece are contacted, the stable conduction in a longer time range can be realized, and the display screen can have a stable shielding effect. And coupling assembling still includes the magnetism and adsorbs the piece, fixes display module and box through the magnetic force between the rust-resistant electrically conductive piece of magnetism adsorption piece and second, easily assembles.
Fig. 1 is a schematic structural diagram of a display module in a display provided in an embodiment of the present invention. Fig. 2 is a schematic structural view of the connecting assembly in fig. 1. Fig. 3 is a first schematic structural diagram of the first rustproof conductive device in fig. 2. Fig. 4 is a first schematic structural diagram of the first rustproof conductive device in fig. 2. Fig. 5 is a schematic diagram of distribution of magnetic induction lines of the second rustproof conductive member in fig. 2.
Referring to fig. 1 to 5, an embodiment of the utility model provides a display screen, which includes a plurality of display screen modules, and the display screen modules are arranged in parallel; each display screen module comprises a display module 10, a box body 20 and a connecting assembly, the connecting assembly is connected with the display module 10 and the box body 20, and a circuit board is arranged on the display module 10; the connecting assembly comprises a first antirust conductive piece 31, a second antirust conductive piece 32 and a magnetic adsorption piece 33, wherein the first antirust conductive piece 31 and the magnetic adsorption piece 33 are arranged on the display module 10, the first antirust conductive piece 31 is connected with a grounding circuit of a circuit board, and the second antirust conductive piece 32 is arranged on the box body 20; wherein, the first rust-proof conductive piece 31 and the second rust-proof conductive piece 32 are abutted so as to connect the grounding circuit of the circuit board with the box body 20; the magnetic attraction member 33 and the second antirust conductive member 32 are located in a magnetic force action range, and when the magnetic attraction member 33 and the second antirust conductive member 32 are attracted to each other by the magnetic force, the display module 10 and the case 20 are fixed to each other.
Specifically, the display screen is used for displaying information such as preset characters, images, videos, and the like as required, and the display screen may be a light-emitting diode (LED) display screen, which is not limited in this embodiment. The display screen comprises a plurality of display screen modules which are arranged in parallel, each display screen module is used for displaying partial characters, images or video information, and the information displayed by the plurality of display screen modules is combined into preset display information.
Each display screen module includes a display module 10, a case 20, a power supply module 40, a control module 50, and a connection assembly connecting the display module 10 and the case 20.
The display module 10 is provided with a circuit board 11, one end of the circuit board 11 is connected with the display module 10, and the other end of the circuit board 11 is connected with the control module 50 of the display screen module, so as to realize communication between the display module 10 and the control module 50, and display preset information such as characters, images, videos and the like according to the control module 50. The power supply module 40 is connected to the control module 50, the display module 10 and the circuit board 11, respectively, for supplying power.
The case 20 may have a container-like structure, and the display module 10 fixes and covers an opening of the case 20. In this way, the cavity enclosed by the display module 10 and the box 20 can be used for accommodating the connection assembly, the power supply module 40, the control module 50 and the like, so as to simplify the appearance of the display screen. The box body 20 can be made of metal, and has high strength and long service life.
The connecting assembly includes a first rust-proof conductive member 31 and a second rust-proof conductive member 32, the first rust-proof conductive member 31 is conducted with the ground circuit of the circuit board 11, and the second rust-proof conductive member 32 is connected and conducted with the case 20. Herein, the "rust-preventive conductive member" refers to a member having both of a conductive ability and a rust preventive ability.
Then, the first rustproof conductive member 31 and the second rustproof conductive member 32 are both conductive members and have a function of preventing corrosion. Like this, after the assembly of display module 10 and box 20 is accomplished, first rust-resistant conductive 31 and the rust-resistant conductive 32 butt of second and switch on, and because first rust-resistant conductive 31 and the rust-resistant function of preventing that all has of the second 32 of leading, first rust-resistant conductive 31 and the rust-resistant state of leading of maintaining stable the switching on of second 32 of leading can be in longer time within range for the display screen has stable shielding effect.
Therefore, it is not necessary to plate a rust-proof metal layer at the conduction position between the first rust-proof conductive member 31 and the second rust-proof conductive member 32, and the box 20 may be made of any material as required, for example, the material of the box 20 may be iron, so as to reduce the manufacturing cost of the display screen.
The second rustproof conductive member 32 can be fixedly connected with the box body 20 through a threaded fastener, has high connection stability, and can be effectively conducted with the box body 20.
The connecting assembly further includes a magnetic attraction member 33, after the display module 10 is assembled on the box 20, the magnetic attraction member 33 and the second rust-proof conductive member 32 are within a magnetic force acting range, and a magnetic force is generated between the magnetic attraction member 33 and the second rust-proof conductive member 32. In this way, after the display module 10 and the box 20 are assembled, the display module 10 and the box 20 can be relatively fixed by the magnetic force, and compared with a mode in which the display module 10 and the box 20 are relatively fixed by fasteners such as bolts in the prior art, the mode in which the display module is fixed by magnetic force is simple in structure and high in assembly efficiency.
Then, at least one of the second rustproof conductive elements 32 and the magnetic adsorbing element 33 is a magnetic element, such as a magnet. Illustratively, the second rustproof conductive component 32 and the magnetic adsorbing component 33 are both magnetic components, or the magnetic adsorbing component 33 is a magnet, and the second rustproof conductive component 32 is a metal component capable of attracting the magnet.
Considering that the first and second rust-proof conductive elements 31 and 32 are both required to have rust-proof effect, in this embodiment, the second rust-proof conductive element 32 is a magnetic element, and in this case, the magnetic attraction element 33 may be a metal member or a magnetic element, which is not limited in this embodiment.
It is understood that the magnet surface has a plating layer such as zinc plating, nickel plating, etc., and thus the magnet has good rust preventive properties. And for making rust-resistant electrically conductive piece 32 of second have good electric conductive property, magnet can be neodymium iron boron material spare, samarium cobalt material spare, alnico material spare or iron chromium cobalt material spare.
Wherein, the second rust-proof conductive elements 32 can be fixedly connected with the box body 20 through threaded fasteners. Alternatively, the case 20 may be provided with a protruding supporting portion 21, the supporting portion 21 may be integrally formed with the case 20 or the supporting portion 21 may be a metal member fixedly connected to the case 20. The supporting portion 21 protrudes toward the side of the display module 10, and the second rustproof conductive pieces 32 are coupled to the end of the supporting portion 21 by a screw fastener. Thus, the size of the second rust-preventive conductive member 32 can be reduced, and the manufacturing cost can be reduced.
Then, to achieve the conduction between the first device 31 and the second device 32, the first device 31 may also be a magnetic device, such as a neodymium-iron-boron device, a samarium-cobalt device, an alnico device, or an iron-chromium-cobalt device.
It is understood that the first rust-preventive conductive member 31 may also be a metal member. For example, the material of the first anti-corrosion conductive member 31 may be gold, copper, platinum, chromium, titanium, silver, stainless steel, etc. The surface of the first rust-proof conductive element 31 may also be provided with a plating layer, such as gold plating on the surface of copper, to improve the rust-proof performance of the first rust-proof conductive element 31, so that the first rust-proof conductive element 31 and the second rust-proof conductive element 32 can be conducted stably for a longer time.
Wherein, the first rust-proof conductive piece 31 and the second rust-proof conductive piece 32 are contacted, and the conduction of the first rust-proof conductive piece 31 and the second rust-proof conductive piece 32 can be realized. In order to prevent the first rustproof conductive member 31 and the second rustproof conductive member 32 from separating, the first rustproof conductive member 31 is a metal member having elasticity, one end of the first rustproof conductive member 31 is connected to the circuit board 11, and the other end of the first rustproof conductive member 31 abuts against the second rustproof conductive member 32 by its own elastic force.
Specifically, one end of the first rust-proof conductive member 31 is connected to the circuit board 11, and the other end of the first rust-proof conductive member 31 is a free end and extends toward the second rust-proof conductive member 32. And the distance between the circuit board 11 and the second rust-proof conductive piece 32 along the vertical direction of the display module 10 is smaller than the dimension of the first rust-proof conductive piece 31 along the vertical direction of the display module 10 in a free state. Thus, after the display screen module is assembled, the first rustproof conductive member 31 can be pressed and deformed and squeezed between the circuit board 11 and the second rustproof conductive member 32, that is, the first rustproof conductive member 31 and the second rustproof conductive member 32 can maintain a mutually abutted state, and the first rustproof conductive member 31 and the second rustproof conductive member 32 can be effectively conducted.
The first rustproof conductive component 31 may be a strip arc-shaped structural component. In some alternative embodiments, the first anti-rust conductive component 31 includes a fixing portion 311, a top portion 312, and a bending portion 313 connecting the fixing portion 311 and the top portion 312, the fixing portion 311 is used for connecting with the circuit board 11, and the top portion 312 abuts against the second anti-rust conductive component 32 under the elastic force of the bending portion 313.
Thus, the first rustproof conductive component 31 may form a U-shaped structural component, the fixing portion 311 and the abutting portion 312 are disposed opposite to each other, the fixing portion 311 is used for being fixedly connected with the circuit board 11 of the display template, the abutting portion 312 is located at a side close to the second rustproof conductive component 32, and the bending portion 313 is used for providing an elastic force, so that the fixing portion 311 and the abutting portion 312 have a tendency of expanding outward. That is, the end of the abutting portion 312 will extend toward the second rustproof conductive member 32 side under the action of the elastic force and abut against the second rustproof conductive member 32, so that the first rustproof conductive member 31 and the second rustproof conductive member 32 maintain a stable contact state.
Considering that there is no locking structure between the abutting portion 312 and the second rustproof conductive member 32, in order to avoid that the abutting portion 312 moves relative to the second rustproof conductive member 32 due to the shaking of the display screen, and thus the abutting portion 312 and the second rustproof conductive member 32 are separated from each other, in some optional embodiments, the first rustproof conductive member 31 further includes a stopping portion 314, and the stopping portions 314 are respectively fixed to two sides of the fixing portion 311 and extend toward one side of the second rustproof conductive member 32; the partial abutting portion 312 extends into the space between the stopping portions 314 along the vertical direction Y of the display module.
It is understood that the display module 10 is a plate-shaped structural member, and the vertical direction Y of the display module is perpendicular to the plate-shaped display module 10.
In order to avoid the interference between the stopping portion 314 and the second rustproof conductive member 32, the free end of the abutting portion 312 extends out of the stopping portion 314 toward the side away from the fixing portion 311. Thus, when the abutting portion 312 abuts against the second rustproof conductive member 32, the stopping portion 314 and the second rustproof conductive member 32 still have a gap in the vertical direction Y of the display module.
When second corrosion-resistant conductive element 32 is a magnetic element, it is understood that second corrosion-resistant conductive element 32 is generally cylindrical in shape, with north and south poles at two ends of the cylindrical structure, and that cylindrical second corrosion-resistant conductive element 32 has an axis. Correspondingly, the vertical direction X of the second rust-proof conductive piece is perpendicular to the axis of the second rust-proof conductive piece 32.
The axis of the second antirust conductive element 32 and the vertical direction Y of the display module can be arranged at any included angle. Optionally, for easy assembly, in this embodiment, the axis of the second rust-proof conductive component 32 is parallel to the vertical direction Y of the display module, that is, the vertical direction X of the second rust-proof conductive component is perpendicular to the display module 10.
Referring to fig. 5, the magnetic induction lines at the center of the end face of the cylindrical magnetic member are distributed less, and the magnetic field strength is weaker, while the magnetic induction lines at the edge of the end face of the cylindrical magnetic member are distributed more, and the magnetic field strength is stronger.
Accordingly, the magnetic attraction member 33 and the second rustproof conductive member 32 are arranged in a staggered manner in the vertical direction X of the second rustproof conductive member.
The magnetic attraction member 33 and the second rust-proof conductive member 32 both have axes, and the axes of the magnetic attraction member 33 and the second rust-proof conductive member 32 are both perpendicular to the display module 10, that is, the axes of the magnetic attraction member 33 and the second rust-proof conductive member 32 are parallel to each other. In this embodiment, the magnetic attraction member 33 and the second rustproof conductive member 32 are staggered in the vertical direction X of the second rustproof conductive member, that is, the axis of the magnetic attraction member 33 and the axis of the second rustproof conductive member 32 have a preset distance, so that the magnetic attraction member 33 is located at the edge position of the end surface of the second rustproof conductive member 32.
Thus, the magnetic force between the magnetic attraction member 33 and the second rustproof conductive member 32 is large, and after the display module 10 is fixed on the case 20 by the magnetic force, the connection stability between the display module 10 and the case 20 is high.
Of course, the distance between the axis of the magnetic attraction member 33 and the axis of the second rustproof conductive member 32 needs to be within a predetermined range to avoid that the magnetic force between the magnetic attraction member 33 and the second rustproof conductive member 32 is small due to a large distance. For example, when the magnetic attraction member 33 and the second corrosion-resistant conductive member 32 are cylindrical structures with equal diameters, the axis of the magnetic attraction member 33 may be aligned with the edge of the second corrosion-resistant conductive member 32. Alternatively, referring to fig. 2, the cross-sectional dimension of the magnetic attraction member 33 in the vertical direction X of the second rustproof conductive member may be smaller than the cross-sectional dimension of the second rustproof conductive member 32, and the magnetic attraction member 33 is disposed eccentrically with respect to the second rustproof conductive member 32. At this time, the projection of the second rust-preventive conductive member 32 on the display module 10 may cover the projection of the magnetic attraction member 33.
It can be understood that, since the magnetic attraction member 33 and the second anti-rust conductive member 32 are disposed in a staggered manner in the vertical direction X of the second anti-rust conductive member, a bypass region is correspondingly formed at a position on the display module 10 corresponding to the second anti-rust conductive member 32, and the bypass region is disposed adjacent to the magnetic attraction member 33.
Alternatively, in view of the small size of the first corrosion-resistant conductive elements 31, the present embodiment may place the first corrosion-resistant conductive elements 31 in the relief area such that at least a portion of the first corrosion-resistant conductive elements 31 are disposed opposite the second corrosion-resistant conductive elements 32.
When the cross-sectional dimension of the first rustproof conductive member 31 is smaller than or equal to the cross-sectional dimension of the relief area, the projection of the second rustproof conductive member 32 on the display module 10 covers the first rustproof conductive member 31 and the magnetic attraction member 33. Therefore, the structure of the display screen module is compact, and the connecting assembly is prevented from occupying too much internal space of the display screen module.
The magnetic adsorption element 33 and the second rust-proof conductive element 32 can be attached to each other by magnetic force. In some alternative embodiments, the magnetic absorption member 33 and the second antirust conductive member 32 are disposed at a distance along the vertical direction Y of the display module. That is, the magnetic attraction member 33 and the second rust-proof conductive member 32 have a predetermined gap in the vertical direction Y of the display module, so that the assembly accuracy between the magnetic attraction member 33 and the second rust-proof conductive member 32 is reduced in the display screen assembly process, and the assembly is easy.
The cross-sectional dimensions of the first rust-proof conductive member 31, the second rust-proof conductive member 32 and the magnetic attraction member 33 can be set as required. For example, the diameter of the second rustproof conductive component 32 may be 20mm, the diameter of the magnetic adsorbing component 33 may be 10mm, the distance between the second rustproof conductive component 32 and the magnetic adsorbing component 33 in the vertical direction of the display module 10 may be 0.5mm, and the offset distance between the magnetic adsorbing component 33 and the second rustproof conductive component 32 in the vertical direction of the magnetic adsorbing component 33 is 1mm-2 mm.
It should be noted that the numerical values and numerical ranges related to the embodiments of the present application are approximate values, and there may be a certain range of errors depending on the manufacturing process, and the error may be considered as negligible by those skilled in the art.
It can be understood that the display screen is a low-voltage device, and the display screen is impacted by transient overvoltage for avoiding, for example, when thunder and lightning or strong static electricity are loaded on the display screen, large current can be generated in the display screen in the twinkling of an eye, and devices such as lamp beads and a circuit board 11 of the display screen are damaged.
In some optional embodiments, the connection assembly further includes an isolation capacitor 34, one end of the isolation capacitor 34 is connected to the ground circuit of the circuit board 11, and the other end of the isolation capacitor 34 is connected to the box 20. In this way, the isolation capacitor 34 can absorb the transient large current to prevent the transient large current from flowing through the capacitive screen, which also forms a protection for the capacitive screen. It is understood that the circuit board 11 may be provided with a protection circuit connected to the isolation capacitor 34, and the embodiment is not limited thereto.
The parameters of the isolation capacitor 34 may be selected as needed, for example, the withstand voltage of the isolation capacitor 34 may be 2KV, and the capacitance of the isolation capacitor 34 is 100 pF.
In some alternative embodiments, the isolation capacitor 34 is configured as a Surface Mounted Device (SMD), and the first conductive corrosion prevention member 31 and the magnetic absorption member 33 may also be configured as a Surface Mounted Device (SMD). Illustratively, the isolation capacitor 34, the first rustproof conductive member 31 and the magnetic absorption member 33 are all packaged by means of a braid package. Thus, the isolation capacitor 34, the first rustproof conductive member 31 and the magnetic adsorbing member 33 can be assembled on the circuit board 11 by a chip mounter well known to those skilled in the art, and then fixed on the circuit board 11 by a welding process, which is convenient for mass production and improves assembly efficiency.
The distance between the magnetic adsorption piece 33 and the first antirust conductive piece 31 may be 0.5mm, so as to facilitate the chip mounting of the chip mounter. The present embodiment does not limit the distance between the isolation capacitor 34 and the magnetic adsorbing member 33 or the distance between the isolation capacitor 34 and the first antirust conductive member 31, as long as the chip mounter is convenient for chip mounting.
In some alternative embodiments, the number of the connecting assemblies is plural, and the plural connecting assemblies are arranged at intervals along the circumference of the display module 10. Thus, along the plane where the display module 10 is located, the plurality of connecting assemblies are arranged at intervals, so that the display module 10 has high flatness, and different display modules 10 of the plurality of display screen modules also have high flatness.
Illustratively, the number of the connecting assemblies may be four, and the connecting assemblies are respectively disposed at four corner positions of the display module 10, so that the display module 10 has better flatness, and the cost of the display screen can be reduced.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means 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 present 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.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A display screen is characterized by comprising a plurality of display screen modules, wherein the display screen modules are arranged in parallel;
each display screen module comprises a display module, a box body and a connecting assembly, the connecting assembly is connected with the display module and the box body, and a circuit board is arranged on the display module;
the connecting assembly comprises a first antirust conductive piece, a second antirust conductive piece and a magnetic adsorption piece, wherein the first antirust conductive piece and the magnetic adsorption piece are arranged on the display module, the first antirust conductive piece is connected with a grounding circuit of the circuit board, and the second antirust conductive piece is arranged on the box body;
the first antirust conductive piece and the second antirust conductive piece are abutted so that a grounding circuit of the circuit board is connected with the box body; the magnetic adsorption piece and the second antirust conducting piece are located in a magnetic force action range, and when the magnetic adsorption piece and the second antirust conducting piece are mutually adsorbed through magnetic force, the display module and the box body are mutually fixed.
2. The display screen of claim 1, wherein the second rustproof conductive member is a magnetic member, the first rustproof conductive member is a metal member with elasticity, one end of the first rustproof conductive member is connected to the circuit board, and the other end of the first rustproof conductive member abuts against the second rustproof conductive member through its own elasticity.
3. The display screen according to claim 2, wherein the first rustproof conductive member includes a fixing portion, a butting portion and a bending portion connecting the fixing portion and the butting portion, the fixing portion is used for connecting with the circuit board, and the butting portion abuts against the second rustproof conductive member under the elastic force of the bending portion.
4. The display screen of claim 3, wherein the first rustproof conductive member further comprises stopping portions fixed to both sides of the fixing portion and extending toward one side of the second rustproof conductive member, respectively;
part of the abutting part extends into the space between the stopping parts along the vertical direction of the display module.
5. A display screen according to any one of claims 1 to 4, wherein the magnetic adsorption member and the second rustproof conductive member are arranged in a staggered manner in a vertical direction of the second rustproof conductive member.
6. The display screen of claim 5, wherein the projection of the second rustproof conductive piece on the display module covers the first rustproof conductive piece and the magnetic adsorbing piece.
7. The display screen of claim 5, wherein the magnetic adsorption member and the second rust-proof conductive member are vertically spaced along the display module.
8. The display screen of any one of claims 1-4, wherein the connection assembly further comprises an isolation capacitor, one end of the isolation capacitor is connected to the ground circuit of the circuit board, and the other end of the isolation capacitor is connected to the box.
9. The display screen of claim 8, wherein the isolation capacitor is configured as a surface mount device.
10. A display screen according to any one of claims 1 to 4, characterised in that the first rust-resistant electrically conductive member and the magnetic attraction member are configured as surface mount devices.
11. A display screen according to any one of claims 1 to 4, wherein the number of the connecting assemblies is plural, and the plural connecting assemblies are arranged at intervals along the circumferential direction of the display module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121053043.8U CN215345352U (en) | 2021-05-17 | 2021-05-17 | Display screen |
| PCT/CN2022/093252 WO2022242627A1 (en) | 2021-05-17 | 2022-05-17 | Display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121053043.8U CN215345352U (en) | 2021-05-17 | 2021-05-17 | Display screen |
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| CN215345352U true CN215345352U (en) | 2021-12-28 |
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| CN202121053043.8U Active CN215345352U (en) | 2021-05-17 | 2021-05-17 | Display screen |
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| WO (1) | WO2022242627A1 (en) |
Cited By (1)
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|---|---|---|---|---|
| WO2022242627A1 (en) * | 2021-05-17 | 2022-11-24 | 广州视源电子科技股份有限公司 | Display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2383178B (en) * | 2001-06-21 | 2005-07-27 | Esm Ltd | Opaque shielding element for liquid crystal display |
| JP2006210763A (en) * | 2005-01-31 | 2006-08-10 | Dainippon Printing Co Ltd | Electromagnetic wave shield filter for display |
| CN2819359Y (en) * | 2005-06-03 | 2006-09-20 | 沈阳远大铝业工程有限公司 | Sunshading louver LED displaying screen wall |
| CN110910779A (en) * | 2019-12-20 | 2020-03-24 | 广州视源电子科技股份有限公司 | LED display screen |
| CN213183414U (en) * | 2020-10-26 | 2021-05-11 | 广州视源电子科技股份有限公司 | LED box and LED display screen |
| CN213183413U (en) * | 2020-10-26 | 2021-05-11 | 广州视源电子科技股份有限公司 | Display device |
| CN215345352U (en) * | 2021-05-17 | 2021-12-28 | 广州视源电子科技股份有限公司 | Display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242627A1 (en) * | 2021-05-17 | 2022-11-24 | 广州视源电子科技股份有限公司 | Display screen |
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