CN210691904U

CN210691904U - Magnetic force coupling assembling and LED display screen

Info

Publication number: CN210691904U
Application number: CN201921286803.2U
Authority: CN
Inventors: 周洪贵
Original assignee: Shenzhen Absen Optoelectronic Co Ltd; Huizhou Absen Optoelectronic Co Ltd
Current assignee: Shenzhen Absen Optoelectronic Co Ltd; Huizhou Absen Optoelectronic Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-06-05
Anticipated expiration: 2029-08-08

Abstract

The utility model belongs to the technical field of the LED display screen, especially, relate to a magnetic coupling assembling and LED display screen. This magnetic connecting assembly is arranged in display module assembly and the box of magnetic connection LED display screen, magnetic connecting assembly includes magnetic part and two magnetic shields that are used for being connected with box and display module assembly respectively, seted up on one of them magnetic shield and had the open-ended installation cavity, the magnetic part is installed in the installation cavity, another magnetic shield laminates on the magnetic shield of seting up the installation cavity and seals the opening of installation cavity, and, another magnetic shield is inhaled with the magnetic part magnetism so that box and display module assembly realize magnetic connection. The two magnetic shields can shield the magnetic force of the magnetic part in all directions, so that the problem of magnetic flux leakage on the surface of the display module is effectively solved; when the LED display screen is used, dust and scrap iron in the air can not be adsorbed on the surface of the display module, so that the LED display screen has a good display effect and dust prevention capacity.

Description

Magnetic force coupling assembling and LED display screen

Technical Field

The utility model belongs to the technical field of the LED display screen, especially, relate to a magnetic coupling assembling and LED display screen.

Background

At present, various LED display screens inevitably use a scheme of magnetic adsorption and fixation for realizing pre-maintenance. This magnet may be located on the housing, on the bottom shell, or even inside the lamp panel. Especially, in some occasions needing to enhance the magnetic strength of the magnet (for example, occasions needing to increase the residual magnetism, the coercive force, the magnetic energy product or the volume of the magnet and the like) so as to improve the adsorption reliability of the lamp panel or the module, or needing to make the magnet approach to the outer side of the lamp panel as much as possible to reduce the overall thickness of the module and the box body, while the measures are taken, the magnetic flux on the outer surface of the lamp panel is relatively large, when micro-fine iron chips or dust with static electricity exist in the environment, the micro-fine iron chips or the dust with static electricity can be easily adsorbed to the outer surface of the lamp panel with relatively large magnetic flux and accumulated to a certain degree, dark spots can occur on the LED display screen in the places, the display effect is seriously influenced, and even the service life of the display screen can be directly influenced by the short circuit of a circuit board and the like caused.

Therefore, in the application where the above situation may exist, measures are generally taken to try to eliminate the magnetic flux existing on the lamp panel or reduce the magnetic flux on the surface of the lamp panel, so as to improve the dust-proof capability.

For example, some transparent protective covers (acrylic and glass) have an effect on preventing dust absorption, but the mounting structure of the protective cover needs to be increased, so that the weight and the cost are increased; meanwhile, the display effect of the whole display screen is reduced due to the problems of dirt or low transmittance; when certain large tracts of land display screen, whole transparent safety cover can't realize at all, if adopt polylith transparent safety cover will have the piece problem.

Some also put in the iron cover that two parts can be closed on the magnet outside, utilize individual layer magnetism shielding principle to try to reduce the magnetic flux of lamp plate surface, nevertheless because the LED display screen has location, installation demand to this two parts iron cover, its structural scheme limitation makes the surface of lamp plate still have not few magnetic leakage, does not have fundamental effective processing good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a magnetic force coupling assembling and LED display screen aims at solving the technical problem that there is the magnetic leakage in the display module assembly that the LED among the prior art shows.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a magnetic coupling assembling for display module assembly and box among the magnetic force connection LED display screen, magnetic coupling assembling include magnetic part and two be used for respectively with the box with the magnetic screen spare that the display module assembly is connected, one of them seted up on the magnetic screen spare and have the open-ended installation cavity, the magnetic part install in the installation cavity, another the magnetic screen spare is laminated in having seted up the installation cavity the magnetic screen spare is gone up and is sealed the opening of installation cavity, and, another the magnetic screen spare with the magnetic part magnetism is inhaled so that the box with the display module assembly realizes magnetic connection.

Optionally, the end face, opposite to the magnetic part, of the magnetic shielding part connected with the box body is provided with a stud for being in threaded connection with the box body.

Optionally, an end face, close to the magnetic part, of the magnetic shield connected to the box body is provided with a notch for an external tool to insert so as to rotate the magnetic shield.

Optionally, one of the two magnetic shields is an iron cover, the other magnetic shield is an iron block, and the magnetic member is mounted in the iron cover.

Optionally, the two magnetic shields are divided into a first magnetic shield and a second magnetic shield, the first magnetic shield is used for being connected with the box body, the second magnetic shield is used for being connected with the display module, and the installation cavity is arranged on the first magnetic shield.

Optionally, the magnetic connecting assembly further includes an adsorbing member having a magnetic property different from that of the magnetic member, the second magnetic shielding member is attached to the end face of the first magnetic shielding member, an accommodating cavity is formed in the end face of the first magnetic shielding member and is opposite to the installation cavity, the adsorbing member is installed in the accommodating cavity, and the magnetic member and the adsorbing member are magnetically attracted to be connected to achieve magnetic connection of the display module and the box body.

Optionally, the two magnetic shields are divided into a first magnetic shield and a second magnetic shield, the first magnetic shield is used for being connected with the box body, the second magnetic shield is used for being connected with the display module, and the installation cavity is arranged on the second magnetic shield.

Optionally, the magnetic connecting assembly further comprises a mounting pad, the mounting pad is mounted on the display module, a fixing cavity with an opening is arranged on the mounting pad, and the second magnetic shielding element is mounted in the fixing cavity.

Optionally, a protrusion used for being welded with the display module and a positioning column used for being connected with the display module are arranged on the side face of the mounting pad.

The utility model provides an above-mentioned one or more technical scheme among the magnetic coupling subassembly have one of following technological effect at least: when the magnetic shielding assembly is used, the magnetic connection between the display module and the box body is realized through the magnetic attraction effect of the magnetic shielding pieces and the magnetic pieces, but because the magnetic pieces are arranged in the installation cavity on one of the magnetic shielding pieces, and the other magnetic shielding piece is attached to the magnetic shielding piece and seals the opening of the installation cavity, the magnetic pieces are positioned in the closed installation cavity formed by the two magnetic shielding pieces which are commonly surrounded, and the magnetic force of the magnetic pieces in all directions can be shielded by the two magnetic shielding pieces, so that the problem of magnetic flux leakage of the outer surface of the display module can be effectively solved, and the magnetic connecting assembly is effectively prevented from adsorbing dust and scrap iron in the air; install this magnetic force coupling assembling's LED display screen when using then, dust and iron fillings in the air can not receive the attraction of the magnetic force of magnetic part and adsorb display module assembly's surface for the LED display screen has good display effect and dustproof ability.

In order to achieve the above object, the present invention adopts another technical solution as follows: the utility model provides a LED display screen, includes display module assembly, box and foretell magnetic connecting assembly, one of them magnetic shield install in on the box, another magnetic shield install in on the display module assembly.

The utility model discloses a LED display screen, owing to adopted foretell magnetic connecting assembly, two magnetic shields can be with the magnetic shielding of magnetic part in all directions, so, can effectively solve the magnetic leakage problem on display module group surface to prevent effectively that magnetic connecting assembly from adsorbing dust and iron fillings in the air; LED display screen then, when using, dust in the air and iron fillings can not receive the attraction of the magnetic force of magnetic part and adsorb display module's surface for LED display screen has good display effect and dustproof ability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a cross-sectional view of the LED display screen with the magnetic member connected to the box body according to the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a magnetic connecting assembly in the LED display screen shown in fig. 1.

Fig. 3 is an exploded view of one perspective of the magnetic coupling assembly in the LED display screen shown in fig. 1.

Fig. 4 is an exploded view of another perspective of the magnetic coupling assembly in the LED display screen shown in fig. 1.

Fig. 5 is a cross-sectional view of an LED display screen with a magnetic member connected to a display module according to another embodiment of the present invention.

Fig. 6 is a cross-sectional view of the LED display screen according to another embodiment of the present invention, in which the magnetic member is connected to the box and the adsorbing member is connected to the display module.

Wherein, in the figures, the respective reference numerals:

10-magnetic connecting assembly 11-magnetic element 12-first magnetic shield

13-second magnetic shield 14-mounting pad 15-adsorption element

20-display module 30-box 121-installation cavity

122-stud 123-notch 131-large diameter section

132-small diameter section 133-accommodating cavity 141-fixed cavity

142-protrusion 143-positioning post.

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 fig. 1-6 are exemplary and intended to be used to illustrate the invention, but should not be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely 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 construed 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-6, in an embodiment of the present invention, a magnetic connecting assembly 10 is provided, a display module 20 and a box 30 are used for magnetic connecting LED display screen, the magnetic connecting assembly 10 includes a magnetic component 11 and two magnetic shielding components respectively used for being connected with the box 30 and the display module 20, an installation cavity 121 with an opening is provided on one of the magnetic shielding components, the magnetic component 11 is installed in the installation cavity 121, another magnetic shielding component is attached to the magnetic shielding component provided with the installation cavity 121 and seals the opening of the installation cavity 121, and another magnetic shielding component is magnetically attracted with the magnetic component 11 to make the box 30 and the display module 20 realize magnetic connecting.

Specifically, the embodiment of the present invention provides a magnetic connecting assembly 10, when in use, through the magnetic attraction between the magnetic shielding member and the magnetic member 11, thereby realizing the magnetic connection between the display module 20 and the box body 30, but because the magnetic member 11 is installed in the installation cavity 121 on one of the magnetic shielding members, and the other magnetic shielding member is attached to the magnetic shielding member and seals the opening of the installation cavity 121, then the magnetic member 11 is located in the enclosed installation cavity 121 formed by the two magnetic shielding members, and the two magnetic shielding members can shield the magnetic force of the magnetic member 11 in each direction, so that the problem of magnetic flux leakage on the surface of the display module 20 can be effectively solved, thereby effectively preventing the magnetic connecting assembly 10 from adsorbing dust and iron filings in the air; when the LED display screen with the magnetic connecting assembly 10 is used, dust and iron filings in the air are not attracted by the magnetic force of the magnetic part 11 and are adsorbed on the surface of the display module 20, so that the LED display screen has good display effect and dust-proof capability.

Further, the utility model discloses magnetic coupling subassembly 10 only needs to have seted up installation cavity 121 on one of them magnetic shield, then laminate another magnetic shield in order to cover the opening that seals installation cavity 121 on this magnetic shield again, not only can not increase the thickness of LED display screen like this, weight and cost, and magnetism 11 installs in the sunk space of installation cavity 121, can effectively reduce two magnetic shields and the whole thickness of magnetism 11 like this, thereby reduce the thickness of this LED display screen, satisfy the frivolous operation requirement of LED display screen.

In another embodiment of the present invention, referring to fig. 1 and 4, the magnetic member 11 of the magnetic connecting assembly 10 is provided to be adhered to the mounting cavity 121. Specifically, magnetism spare 11 is direct to be pasted at installation cavity 121 through glue, compares with the mode that adopts screw fixation magnetism spare 11, the utility model discloses magnetic connecting assembly 10 need not to set up the screw hole on first magnetism shielding part 12 to can avoid magnetism spare 11's magnetic force to leak from the screw hole, so the connected mode of pasting of adoption, its installation easy operation is swift, can also avoid magnetic force to leak completely, makes the LED display screen of installing this magnetic connecting assembly 10 have good dustproof ability. Of course, in other embodiments, the magnetic member 11 may also be fixed in the mounting cavity 121 by other processes, such as: thermal shrinkage process or interference fit connection.

In another embodiment of the present invention, one of the two magnetic shields of the magnetic connecting assembly 10 is provided as an iron cover, the other magnetic shield is an iron block, and the magnetic member 11 is installed in the iron cover. Magnetic part 11 installs in the iron cover, the opening of iron cover is sealed to the iron plate, thereby encapsulate magnetic part 11 in the iron cover, because the part made of iron has good magnetic shielding effect, so the magnetic line of force of magnetic part 11 can realize the closure through iron cover and iron plate, thereby fundamentally avoids magnetic force of magnetic part 11 to expose, reduce the magnetic flux on display module 20 surface, thereby prevent effectively that display module 20 from adsorbing dust and iron fillings in the air, guarantee that the LED display screen has good display effect, the life of extension LED display screen.

Further, magnetic part 11 can be directly magnetically adsorbed in the iron cover, thereby realizing the fixation of magnetic part 11 without adopting other fixed parts for fixation, and the device has simple structure and convenient and fast assembly.

In another embodiment of the present invention, referring to fig. 1, 2 and 3, the magnetic shielding member connected to the box 30 of the magnetic connecting assembly 10 is provided with a stud 122 for screwing with the box 30 at the end surface facing away from the magnetic member 11. The magnetic shield passes through double-screw bolt 122 and box 30 threaded connection, because threaded connection's connectivity is good, the magnetic shield is good with box 30's joint strength, connect reliable and stable, and installation easy operation is swift, and, also, can utilize the instrument to rotate double-screw bolt 122 from the back of box 30, thereby adjust the interval between magnetic shield and the box 30, thereby adjust the distance between display module assembly 20 and the box 30, and then adjust the roughness of LED display screen display surface, realize the back adjustment of LED display screen.

Furthermore, a cross hole or a straight hole is formed in the end face of the stud 122, and the cross hole or the straight hole is matched with a screwdriver and other tools to rotate the stud 122, so that the operation is convenient and fast.

In another embodiment of the present invention, referring to fig. 1, 2 and 4, a magnetic shielding member connected to the box 30 of the magnetic connecting assembly 10 is provided with a notch 123 for an external tool to insert to rotate the magnetic shielding member on an end surface of the magnetic shielding member near the magnetic member 11. Specifically, an external tool can extend into the gap 123 from the front of the box body 30 to rotate the whole magnetic shielding piece so as to drive the stud 122 to rotate, so that the interval between the magnetic shielding piece and the box body 30 is adjusted, and therefore the front adjustment of the LED display screen can be realized, and the installation and the maintenance of the LED display screen are facilitated.

Further, the number of the notches 123 is plural, each notch 123 is uniformly arranged along the circumferential direction of the first magnetic shielding member 12 at intervals, the notches 123 are arranged in pairs, and two notches 123 in each pair of notches 123 are arranged just opposite to each other, so that an external tool can extend into one pair of notches 123 to clamp the first magnetic shielding member 12 tightly, the rotation adjustment of the first magnetic shielding member 12 is realized, and the operation is time-saving and labor-saving.

In another embodiment of the present invention, referring to fig. 1, two magnetic shields of the magnetic connecting assembly 10 are provided and are divided into a first magnetic shield 12 and a second magnetic shield 13, the first magnetic shield 12 is used for being connected to the box 30, the second magnetic shield 13 is used for being connected to the display module 20, and the installation cavity 121 is disposed on the first magnetic shield 12. Specifically, first magnetism shielding part 12 is installed on box 30, and second magnetism shielding part 13 is installed on display module assembly 20, and magnetism part 11 is installed in installation cavity 121 on first magnetism shielding part 12, and magnetism part 11 is installed at box 30 promptly, so display module assembly 20 is before being connected with box 30, display module assembly 20 does not have magnetism, dust and iron fillings in the air can not adsorb on display module assembly 20 for display module assembly 20 has good dustproof performance, guarantee that display module assembly 20 has good display effect.

In another embodiment of the present invention, referring to fig. 6, the magnetic connecting assembly 10 further includes an adsorbing member 15 having a magnetic property different from that of the magnetic member 11, the second magnetic shielding member 13 is attached to the end surface of the first magnetic shielding member 12 and is provided with an accommodating cavity 131 just opposite to the communicating with the installing cavity 121, the adsorbing member 15 is installed in the accommodating cavity 133, and the magnetic member 11 and the adsorbing member 15 are magnetically attracted to connect to realize the magnetic connection between the display module 20 and the box 30. Specifically, the accommodating cavity 133 provides an installation space for the adsorbing member 13, and the accommodating cavity 133 is in direct contact with the installation cavity 121, so that when the first magnetic shielding member 12 and the second magnetic shielding member 13 are attached to each other, the installation cavity 121 is in direct contact with the accommodating cavity 131, so that on one hand, the magnetic member 11 and the adsorbing member 15 can be stably adsorbed and connected together, and meanwhile, due to the fact that the magnetic members 11 and the adsorbing member 15 are different in magnetism, the magnetic acting force between the adsorbing member 15 and the magnetic member 11 is strong, the magnetic adsorption connectivity between the box body 20 and the display module 30 is good, and the connection is more stable and reliable; on the other hand, the magnetic member 11 and the adsorbing member 15 are also sealed in the sealed cavity formed by the mounting cavity 121 and the accommodating cavity 133, so that the magnetic force leakage of the magnetic member 11 and the adsorbing member 15 can be effectively prevented, and the problem of surface magnetic flux leakage of the display module 20 is effectively solved.

Further, the attracting member 15 and the magnetic member 11 may be magnets having different magnetism.

In another embodiment of the present invention, referring to fig. 5, two magnetic shields of the magnetic connecting assembly 10 are provided and are divided into a first magnetic shield 12 and a second magnetic shield 13, the first magnetic shield 12 is used for being connected to the box 30, the second magnetic shield 13 is used for being connected to the display module 20, and the installation cavity 121 is disposed on the second magnetic shield 13. Specifically, the first magnetic shield 12 is mounted on the case 30, the second magnetic shield 13 is mounted on the display module 20, and the magnetic member 11 is mounted in the mounting cavity 121 on the second magnetic shield 13, i.e., the magnetic member 11 can also be mounted on the display module 20.

In another embodiment of the present invention, referring to fig. 1, 2 and 3, the magnetic connecting assembly 10 of the magnetic connecting assembly 10 further includes a mounting pad 14, the mounting pad 14 is mounted on the display module 20, a fixing cavity 141 having an opening is provided on the mounting pad 14, and the second magnetic shielding element 13 is mounted in the fixing cavity 141. Specifically, the second magnetic shield 13 is mounted on the rear side surface of the display module 20 through the mounting pad 14, so that it is not necessary to provide a positioning column for connecting with the display module 20 on the second magnetic shield 13, and thus, the problem of leakage of the magnetic force of the positioning column on the second magnetic shield 13 does not exist, so that the magnetic force lines of the magnetic member 11 are completely closed in the second magnetic shield 13 and the first magnetic shield 12, the magnetic flux on the surface of the display module 20 is reduced, and dust adsorption is effectively prevented; meanwhile, the connection stability between the mounting pad 14 and the display module 20 is good, the second magnetic shielding piece 13 is mounted in the fixing cavity 141 of the mounting pad 14, the connection between the second magnetic shielding piece 13 and the mounting pad 14 is stable and reliable, and the mounting stability and reliability of the second magnetic shielding piece 13 are ensured, so that the display module 20 can be stably installed on the box body 30 in a magnetic adsorption manner, and the connection between the display module 20 and the box body 30 is stable and firm; the reliability of the connection between the second magnetic shield 13 and the display module 20 can be effectively improved.

Further, the mounting pad 14 is a non-magnetic mounting pad.

Further, the second magnetic shield 13 is fixed in the fixing cavity 141 of the mounting pad 14 by various means such as bonding, snap-fitting, press-fitting, and the like.

Further, the mounting pad 14 can be chosen according to the requirement of the display module 20 in the LED display screen, if the positioning column 143 is not needed for connection, the mounting pad 14 is not needed, and the second magnetic shielding piece 13 is directly welded to the pad on the display module 20. Or, in the application requirement of the lamp panel with the bottom shell, the second magnetic shielding element 13 may be directly embedded or adhered into the mounting groove on the bottom shell, but the second magnetic shielding element 13 may not be fixed to the housing by using screws, or the second magnetic shielding element 13 may be made into a circular ring shape, so as to prevent the magnetic force of the magnetic element 11 from leaking.

In another embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 4, the first magnetic shielding member 12 of the magnetic connecting assembly 10 provided includes a large diameter section 131 and a small diameter section 132 connected to the large diameter section 131, the small diameter section 132 is fixedly installed in the fixing cavity 141, the large diameter section 131 is located outside the fixing cavity 141, and the end surface of the large diameter section 131 facing away from the small diameter section 132 is attached to the second magnetic shielding member 13 and seals the opening of the mounting cavity 121. Specifically, little diameter section 132 directly stretches into and carries out fixed connection in the fixed chamber 141, and big diameter section 131 stretches out outside fixed chamber 141, simultaneously the terminal surface of big diameter section 131 and the side laminating of first magnetic shield 12 are in order to seal the opening in the installation cavity 121 on the first magnetic shield 12 and inhale mutually with magnetic part 11, and simultaneously, the terminal surface area of big diameter section 131 is great, can seal the opening of installation cavity 121 completely, and the middle part and the magnetic part 11 looks magnetic force of the terminal surface of big diameter section 131 are connected, and the edge part of the terminal surface of big diameter section 131 can the butt on first magnetic shield 12, thereby completely cut off dust and iron fillings outside installation cavity 121, avoid dust and iron fillings to get into in the installation cavity 121 from the laminating department between first magnetic shield 12 and the second magnetic shield 13, the dustproof ability has been improved greatly.

In another embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 4, the side of the mounting pad 14 of the magnetic connecting assembly 10 is provided with a positioning column 143 for connecting with the protrusion 142 welded with the display module 20 and for connecting with the display module 20, the display module 20 is provided with a mounting hole, the positioning column 143 extends into and is fixedly mounted in the mounting hole, and simultaneously, the end surface of the protrusion 142 is welded with the display module 20, thereby realizing the connection between the mounting pad 14 and the display module 20, and enabling the mounting pad 14 to be stably and reliably fixed on the display module 20.

In another embodiment of the present invention, the magnetic member 11 of the magnetic connecting assembly 10 is provided as a magnet. The magnet has good magnetic adsorption performance, is easy to obtain, and is low in cost, and on the basis of ensuring that the magnetic connecting assembly 10 has good magnetic adsorption performance, the cost is low.

In another embodiment of the present invention, referring to fig. 1, an LED display screen is provided, which includes a display module 20, a box 30 and the above-mentioned magnetic connecting assembly 10, wherein one of the magnetic shields is installed on the box 30, and the other magnetic shield is installed on the display module 20.

The LED display screen provided by the embodiment of the utility model adopts the magnetic connecting component 10, and the two magnetic shields can shield the magnetic force of the magnetic component 11 in all directions, thus effectively solving the problem of magnetic flux leakage on the surface of the display module, and effectively preventing the magnetic connecting component 10 from adsorbing dust and scrap iron in the air; LED display screen then, when using, dust and iron fillings in the air can not receive the attraction of the magnetic force of magnetic part 11 and adsorb display module assembly 20's surface for LED display screen has good display effect and dustproof ability.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a magnetic force coupling assembling for display module assembly and box among the magnetic force connection LED display screen, its characterized in that: magnetic force coupling assembling include magnetic part and two be used for respectively with the box with the magnetism shielding that display module assembly connects, one of them seted up on the magnetism shielding have an open-ended installation cavity, the magnetic part install in the installation cavity, another the magnetism shielding laminating in seted up the installation cavity on the magnetism shielding and seal the opening of installation cavity, and, another the magnetism shielding with the magnetism is inhaled so that the box with display module assembly realizes magnetic connection.

2. The magnetic connection assembly of claim 1, wherein: the end face, back to the magnetic part, of the magnetic shielding part connected with the box body is provided with a stud connected with the box body in a threaded mode.

3. The magnetic connection assembly of claim 1, wherein: and a notch for an external tool to insert to rotate the magnetic shield is arranged on the end face, close to the magnetic shield, of the magnetic shield connected with the box body.

4. The magnetic connecting assembly according to any one of claims 1 to 3, wherein: one of the two magnetic shields is an iron cover, the other magnetic shield is an iron block, and the magnetic part is arranged in the iron cover.

5. The magnetic connection assembly of claim 1, wherein: two the magnetism shielding part divide into first magnetism shielding part and second magnetism shielding part, first magnetism shielding part be used for with the box is connected, second magnetism shielding part be used for with display module connects, the installation cavity set up in on the first magnetism shielding part.

6. The magnetic connection assembly of claim 5, wherein: the magnetic force connecting assembly further comprises an adsorption piece with the magnetic part, the magnetic part is different in magnetic property, the second magnetic shielding piece is attached to the end face of the first magnetic shielding piece, a containing cavity is formed in the end face of the first magnetic shielding piece, the installation cavity is opposite to the containing cavity in communication, the adsorption piece is installed in the containing cavity, and the magnetic part and the adsorption piece are magnetically attracted to be connected to achieve the purpose that the display module is connected with the magnetic force of the box body.

7. The magnetic connection assembly of claim 1, wherein: two the magnetism shielding part divide into first magnetism shielding part and second magnetism shielding part, first magnetism shielding part be used for with the box is connected, second magnetism shielding part be used for with display module connects, the installation cavity set up in on the second magnetism shielding part.

8. The magnetic connection assembly of any one of claims 5 to 7, wherein: the magnetic force coupling assembling still includes the mounting pad, the mounting pad install in on the display module assembly, be equipped with on the mounting pad and have the fixed chamber of open-ended, the second magnetism shielding part install in fixed intracavity.

9. The magnetic connection assembly of claim 8, wherein: the side of mounting pad be equipped with be used for with display module assembly welded arch and be used for with the reference column that display module assembly is connected.

10. An LED display screen, its characterized in that: the magnetic connecting component comprises a display module, a box body and the magnetic connecting component as claimed in any one of claims 1 to 9, wherein one magnetic shielding piece is installed on the box body, and the other magnetic shielding piece is installed on the display module.