CN218631182U - Display module and display screen - Google Patents
Display module and display screen Download PDFInfo
- Publication number
- CN218631182U CN218631182U CN202222903782.2U CN202222903782U CN218631182U CN 218631182 U CN218631182 U CN 218631182U CN 202222903782 U CN202222903782 U CN 202222903782U CN 218631182 U CN218631182 U CN 218631182U
- Authority
- CN
- China
- Prior art keywords
- lamp
- shielding box
- display module
- assembly
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a display module assembly and display screen, wherein, display module assembly includes lamp plate assembly and control assembly, lamp plate assembly includes the lamp body and establishes the lamp plate on the lamp body, control assembly includes power module, control module and shielding box, power module and control module all set up in shielding box, shielding box is equipped with the first conductive area who is connected with power module's earth connection electricity, control module's earthing terminal is connected with first conductive area electricity, the outside at shielding box is established to the lamp body, the lamp body be equipped with second conductive area, the earthing terminal of lamp plate is connected with second conductive area electricity through first conduction piece, the lamp body passes through the second conduction piece and is connected with first conductive area electricity. The utility model discloses a lamp plate is connected with lamp body, shielding box and power module's earth connection electricity in proper order, and control module's earthing terminal is connected with shielding box and power module's earth connection electricity simultaneously, can draw the electromagnetic radiation of power module, control module and lamp plate to lead to ground to reduce display module assembly's electromagnetic radiation.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a display module assembly and display screen.
Background
Electromagnetic compatibility (EMC) refers to the ability of a device or system to perform satisfactorily in its electromagnetic environment and not to create intolerable electromagnetic disturbance to any device in its environment.
The display equipment needs to be subjected to electromagnetic compatibility certification, and certain electromagnetic compatibility requirements are met. The current display equipment generally comprises main components such as a lamp shell, a power supply module, a control module and a lamp panel, wherein the power supply module, the control module and the lamp panel can radiate electromagnetic radiation to the outside of the surrounding environment, and the electromagnetic compatibility requirement cannot be met.
At present, a power supply module and a control module are generally arranged in a metal shell, and electromagnetic radiation of the power supply module and the control module is shielded by the metal shell; and in order to reduce the electromagnetic radiation of lamp plate, adopt the multilayer design (6 layers at least) with the circuit board in the lamp plate usually, shield electromagnetic radiation inside the circuit board, but the circuit board only needs 4 layers can realize the circuit function, adopts the multiply wood design can increase the cost of lamp plate.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at: the display module is simple in structure, capable of effectively reducing electromagnetic radiation and good in electromagnetic compatibility.
The embodiment of the utility model provides a another aim at: the display screen is simple in structure, good in electromagnetic compatibility and low in cost.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the first aspect provides a display module assembly, including lamp plate subassembly and control assembly, the lamp plate subassembly includes the lamp body and sets up lamp plate on the lamp body, control assembly includes power module, control module and shielding box, power module with control module all sets up in the shielding box, the shielding box is provided with first electrically conductive region, first electrically conductive region with power module's earth connection electricity is connected, control module's earthing terminal with the shielding box electricity is connected, the lamp body sets up the outside of shielding box, the lamp body is provided with the electrically conductive region of second, the earthing terminal of lamp plate through first switch-on with the electrically conductive regional electricity of second is connected, the lamp body through the second switch-on with the electrically conductive regional electricity of first.
As a preferred scheme of the display module, a first isolation capacitor is electrically connected between a ground terminal of the control module and the first conductive region.
As a preferred scheme of the display module, a second isolation capacitor is electrically connected between the grounding end of the lamp panel and the second conductive area.
As a preferable scheme of the display module, the areas of the shielding box except the first conductive area and the lamp housing except the second conductive area are provided with insulating coatings.
As a preferable scheme of the display module, the first conducting piece and the second conducting piece are conductive adhesive or conductive metal pieces.
As a preferable scheme of the display module, the first conduction piece is connected with the lamp housing through welding or bonding or a fastening piece; and/or the presence of a gas in the gas,
the second conduction piece is respectively connected with the lamp shell and the shielding box through welding or bonding or fastening pieces.
As a preferred scheme of display module assembly, the shielding box is provided with a plurality ofly along self length direction equidistant the lamp plate subassembly.
As a display module assembly's an preferred scheme, the lamp plate includes circuit board and multirow lamp pearl group, all lamp pearl group is followed the width direction interval of circuit board sets up, every row the length of lamp pearl group all is followed the length direction of circuit board extends.
As a preferable scheme of the display module, the lamp housing comprises a metal housing and a plastic housing, and the metal housing and the plastic housing are detachably connected to form the lamp housing;
or the lamp shell is integrally formed by a metal plate.
The second aspect provides a display screen, including the frame and above the display module assembly, the display module assembly sets up in the frame.
Has the advantages that: through first switch on and second switch on, the earthing terminal of lamp plate can in proper order with the lamp body, the earth connection electricity of shielding box and power module is connected and is formed a complete lamp plate ground return circuit, control module also can be in proper order be connected with shielding box and power module's earth connection electricity and forms a complete control module ground return circuit, with the lamp plate, control module and power module's the leading-in underground of electromagnetic radiation, reduce the lamp plate, control module and power module's electromagnetic radiation, and the shielding box can also shield control module and power module's electromagnetic radiation, not only can restrain control module and power module's electromagnetic radiation and outwards conduct, can also prevent outside electromagnetic radiation interference control module and power module, thereby improve display module's EMC performance.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is an exploded view of an assembly of a display module according to an embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of a display module according to an embodiment of the present invention.
Fig. 3 is the embodiment of the utility model provides a partial assembly of lamp plate assembly of display module assembly decomposes the view.
In the figure:
1. a lamp panel assembly; 11. a lamp housing; 111. a metal shell; 112. a plastic shell; 12. a lamp panel; 121. a circuit board; 122. a lamp bead group; 2. a control component; 21. a power supply module; 22. a control module; 23. a shield case; 3. a first conduction piece; 4. and a second conduction member.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the utility model provides a pair of display module assembly, including lamp plate assembly 1 and control assembly 2, lamp plate assembly 1 includes lamp body 11 and lamp plate 12 of setting on lamp body 11, and control assembly 2 includes power module 21, control module 22 and shielding box 23, and power module 21 is connected with control module 22 and lamp plate 12 respectively for control module 22 and lamp plate 12 provide the energy, guarantee that control module 22 and lamp plate 12 can normally work. Power module 21 and control module 22 all set up in shielding box 23, shielding box 23 is provided with first electrically conductive region, first electrically conductive region is connected with power module 21's earth connection electricity, control module 22's earthing terminal is connected with first electrically conductive region electricity, lamp body 11 sets up the outside at shielding box 23, lamp body 11 is provided with the second electrically conductive region, lamp plate 12's earthing terminal is connected with the electrically conductive region electricity of second through first conduction piece 3, the electrically conductive region of second is connected with first electrically conductive region electricity through second conduction piece 4.
Understandably, through the first conducting piece 3 and the second conducting piece 4, the grounding end of the lamp panel 12 can be sequentially connected with the lamp housing 11, the grounding wires of the shielding box 23 and the power module 21 are electrically connected to form a complete lamp panel grounding loop, meanwhile, the control module 22 can also be sequentially connected with the grounding wires of the shielding box 23 and the power module 21 to form a complete control module grounding loop, the lamp panel 12 and the electromagnetic radiation of the control module 22 and the power module 21 can be guided underground, the electromagnetic radiation of the lamp panel 12 and the electromagnetic radiation of the control module 22 and the power module 21 can be reduced, and the shielding box 23 can also shield the electromagnetic radiation of the control module 22 and the power module 21, so that the electromagnetic radiation of the control module 22 and the power module 21 can be inhibited from being conducted outwards, the external electromagnetic radiation can be prevented from interfering with the control module 22 and the power module 21, and the EMC performance of the display module is improved.
Specifically, lamp panel 12 includes a circuit board 121 and a lamp bead group 122.
Illustratively, the circuit board 121 is fixed to the lamp housing 11 by a fastener.
Further, a second isolation capacitor (not shown) is electrically connected between the ground of the lamp panel 12 and the second conductive region of the lamp housing 11. The first isolation capacitor is disposed on the circuit board 121. Because still be provided with other electronic component on the circuit board 121, external static conducts to lamp plate 12 through lamp body 11 and first 3 that switch on easily, burns out the electronic component on the circuit board 121, and isolation capacitor can switch on the alternating current, keeps apart the nature of direct current, can keep apart external static through setting up first isolation capacitor, protects the electronic component on the lamp plate 12, guarantees that lamp plate ground return circuit can normal electric conduction simultaneously to lead to the ground with the electromagnetic radiation of lamp plate 12 smoothly.
Further, a second isolation capacitor (not shown) is electrically connected between the ground terminal of the control module 22 and the first conductive region of the shielding box 23. The control module 22 also has electronic components thereon, and the electronic components on the control module 22 can be protected by providing a second isolation capacitor.
For example, in order to make the lamp housing 11 and the shielding box 23 conductive, both the lamp housing 11 and the shielding box 23 are made of conductive metal.
Specifically, the areas of the shielding box 23 except the first conductive area and the areas of the lamp housing 11 except the second conductive area are provided with the insulating coatings. The insulating coating can form a protective layer on the surfaces of the shielding box 23 and the lamp housing 11, further isolate external static electricity, protect the electronic elements of the control module 22 and the lamp panel 12, and simultaneously can play roles in electricity leakage prevention and rust prevention.
Illustratively, the insulating coating is an insulating paint.
In this embodiment, the insulating coating is sprayed on the shielding box 23 and the lamp housing 11 by a spraying manner, that is, in the spraying process, the connection areas of the shielding box 23 and the lamp housing 11 and the first conducting member 3 and the second conducting member 4 are shielded, so that the connection areas of the shielding box 23 and the lamp housing 11 and the first conducting member 3 and the second conducting member 4 are ensured to be conductive.
In other embodiments, after the insulating coating is completely sprayed on the surfaces of the shielding box 23 and the lamp housing 11, the insulating coating in the connection region between the shielding box 23 and the lamp housing 11 and the first conducting member 3 and the second conducting member 4 is scraped off by a tool.
Specifically, the first conducting part 3 and the second conducting part 4 are conductive adhesive or conductive metal parts.
Further, in order to ensure that the first conduction member 3 and the second conduction member 4 are firmly connected, the first conduction member 3 is connected with the lamp housing 11 by welding, bonding or fastening; the second conduction member 4 is connected to the lamp housing 11 and the shielding box 23 by welding or bonding or fastening.
Preferably, the first and second conductive members 3 and 4 are conductive paste. The conducting resin has certain elasticity, not only can play electrically conductive effect, can also be to playing buffer protection's effect between lamp plate 12 and the lamp body 11, between lamp body 11 and the shielding box 23, and conducting resin accessible adhesive bonding connects moreover, and the installation is simple.
Specifically, as shown in fig. 1 and fig. 3, the outside of the shielding box 23 is detachably connected with a plurality of lamp shells 11 through fasteners, the outside of the shielding box 23 is provided with a plurality of groups of threaded holes at intervals along the length direction, the lamp shells 11 are provided with through holes, the fasteners can pass through the through holes and be connected with the threaded holes, and all the lamp shells 11 are arranged at intervals along the length direction of the shielding box 23, so that the shielding box 23 is provided with a plurality of lamp panel assemblies 1 at equal intervals along the length direction. The screw hole not only can play the effect of connecting, can also play the effect of location to guarantee that lamp plate assembly 1 can the equidistant arranging, make display module assembly luminous even.
In this embodiment, display module assembly still includes a plurality of supports, and shielding box 23 is located lamp plate assembly 1's one end, and a plurality of supports set up with shielding box 23 along lamp plate assembly 1's length direction interval for auxiliary stay lamp plate assembly 1 improves lamp plate assembly 1's connection stability.
Preferably, a plurality of rows of lamp bead groups 122 are arranged on circuit board 121 of each lamp panel assembly 1, the plurality of lamp bead groups 122 are arranged at intervals along the width direction of circuit board 121, and the length of each row of lamp bead groups 122 extends along the length direction of circuit board 121. Because display module assembly includes a plurality of lamp plate subassembly 1, and the circuit board 121 of current lamp plate subassembly 1 only sets up one row of lamp pearl group 122 usually for the required lamp plate subassembly 1 of display module assembly is also more in quantity, leads to lamp plate subassembly 1 installation more loaded down with trivial details, and this design is through organizing 122 integration on a circuit board 121 with a plurality of lamp pearls, can reduce lamp plate subassembly 1's quantity, thereby improves lamp plate subassembly 1's installation effectiveness.
Further, in order to guarantee that the display module assembly is luminous even, lamp pearl group 122 includes a plurality of banks, and all lamp pearls 122 of every row of lamp pearl group 122 are arranged along the length direction of circuit board 121 equidistant, and all lamp pearl groups are arranged along the width direction equidistant of circuit board 121.
In this embodiment, as shown in fig. 3, the lamp housing 11 is a split design, the lamp housing 11 includes a metal shell 111 and a plastic shell 112, the metal shell 111 and the plastic shell 112 are detachably connected by a fastener to form the lamp housing 11, and the plastic shell 112 is connected to the shielding box 23 by a fastener. The design can reduce the use of metal materials and reduce the production cost.
In other embodiments, the lamp housing 11 is integrally die-cast from a metal plate.
Specifically, the metal shell 111 is disposed at an interval with the shielding box 23 through the plastic shell 112, the plastic shell 112 is provided with an avoiding hole, one end of the second conduction member 4 is connected with the outer side of the lamp housing 11, and the other end of the second conduction member passes through the avoiding hole to be connected with the outer side of the shielding box 23.
The utility model also provides a display screen, including the display module assembly of frame and above arbitrary embodiment, the display module assembly sets up in the frame. The utility model discloses the display screen can reduce electromagnetic radiation by a wide margin, improves the electromagnetic compatibility performance of display piece, and lamp plate assembly 1's circuit board 121 need not to adopt the multilayer design simultaneously, can reduce lamp plate assembly 1's manufacturing cost to reduce the cost of display screen.
Claims (10)
1. The utility model provides a display module assembly, includes lamp plate assembly and control assembly, lamp plate assembly includes the lamp body and sets up lamp plate on the lamp body, control assembly includes power module, control module and shielding box, power module with control module all sets up in the shielding box, the shielding box is provided with first electrically conductive region, first electrically conductive region with power module's earth connection electricity is connected, control module's earthing terminal with the shielding box electricity is connected, the lamp body sets up the outside of shielding box, its characterized in that, the lamp body is provided with the electrically conductive region of second, the earthing terminal of lamp plate through first switch-on with the electrically conductive region of second is connected, the lamp body through the second switch-on with the electrically conductive region of first electricity is connected.
2. The display module of claim 1, wherein a first isolation capacitor is electrically connected between a ground terminal of the control module and the first conductive region.
3. The display module assembly of claim 2, wherein a second isolation capacitor is electrically connected between the ground terminal of the lamp panel and the second conductive region.
4. The display module according to any one of claims 1 to 3, wherein the region of the shielding box except the first conductive region and the region of the lamp housing except the second conductive region are provided with an insulating coating.
5. The display module according to any one of claims 1 to 3, wherein the first conductive member and the second conductive member are conductive adhesive or conductive metal member.
6. The display module assembly according to any one of claims 1 to 3, wherein the first conductive member is connected to the lamp housing by welding, bonding or fastening; and/or the presence of a gas in the gas,
the second conduction piece is respectively connected with the lamp shell and the shielding box through welding or bonding or fastening pieces.
7. The display module assembly of any one of claims 1 to 3, wherein the shielding box is provided with a plurality of the lamp panel assemblies at equal intervals along the length direction of the shielding box.
8. The display module assembly of claim 7, wherein the lamp panel comprises a circuit board and a plurality of rows of lamp bead groups, all the lamp bead groups are arranged at intervals along the width direction of the circuit board, and the length of each row of the lamp bead group extends along the length direction of the circuit board.
9. The display module assembly according to any one of claims 1 to 3, wherein the lamp housing comprises a metal housing and a plastic housing, and the metal housing and the plastic housing are detachably connected to form the lamp housing;
or the lamp shell is integrally formed by a metal plate.
10. A display screen, comprising a frame, characterized by further comprising the display module according to any one of claims 1 to 9, wherein the display module is disposed on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222903782.2U CN218631182U (en) | 2022-11-01 | 2022-11-01 | Display module and display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222903782.2U CN218631182U (en) | 2022-11-01 | 2022-11-01 | Display module and display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218631182U true CN218631182U (en) | 2023-03-14 |
Family
ID=85474208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222903782.2U Active CN218631182U (en) | 2022-11-01 | 2022-11-01 | Display module and display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218631182U (en) |
-
2022
- 2022-11-01 CN CN202222903782.2U patent/CN218631182U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI618316B (en) | Electrical connector assembly | |
| US4680676A (en) | Portable radio housing with logic and RF shielding | |
| US7986533B2 (en) | Shielding assembly and electronic device utilizing the same | |
| WO2004088381A8 (en) | Shielding cage with multiple module-receiving bays | |
| WO2004091055A3 (en) | Shielding cage with improved emi shielding gasket construction | |
| US20070093135A1 (en) | Enclosure with emi shield | |
| CN1707698A (en) | Electronic device capable of shielding electromagnetic interference | |
| US8864529B2 (en) | USB plug connector structure | |
| CN218631182U (en) | Display module and display screen | |
| CN205491646U (en) | Insulating box of electromagnetic shield | |
| CN114759384A (en) | Cabin type filter plug capable of efficiently shielding | |
| TW201328063A (en) | Electronic outlet and electronic device with the same | |
| US20140334119A1 (en) | Anti-emi shielding assembly and electronic device using the same | |
| CN204272588U (en) | A kind of display module with electromagnetic isolation structure | |
| CN206584544U (en) | Anti-interference robot demonstrator | |
| CN204374254U (en) | A kind of high-protection level ammeter | |
| CN209982918U (en) | Novel electronic information equipment case | |
| CN220475979U (en) | Flexible circuit board, display module and electronic equipment | |
| CN217444175U (en) | Electronic device protective belt and interactive flat plate | |
| CN110113923B (en) | Laser cinema equipment | |
| CN104502654A (en) | High-protection level electric meter | |
| CN216412060U (en) | Dimming glass conductive connecting piece and case with dimming glass | |
| CN213213586U (en) | Case and video processor | |
| CN216058117U (en) | Electromagnetic shielding structure and circuit board assembly | |
| CN215955523U (en) | Shielding hard cable assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |