CN115188283A - Circuit board capable of preventing black screen in renting LED display screen work and display screen assembly - Google Patents
Circuit board capable of preventing black screen in renting LED display screen work and display screen assembly Download PDFInfo
- Publication number
- CN115188283A CN115188283A CN202110939654.0A CN202110939654A CN115188283A CN 115188283 A CN115188283 A CN 115188283A CN 202110939654 A CN202110939654 A CN 202110939654A CN 115188283 A CN115188283 A CN 115188283A
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- receiving plate
- circuit board
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- 238000009434 installation Methods 0.000 claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 239000000741 silica gel Substances 0.000 claims abstract description 11
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- 238000005336 cracking Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000003491 array Methods 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000013467 fragmentation Methods 0.000 abstract description 4
- 238000006062 fragmentation reaction Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract 2
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 210000003811 finger Anatomy 0.000 description 15
- 229920001296 polysiloxane Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 241000282376 Panthera tigris Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
- H05K7/1418—Card guides, e.g. grooves
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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 invention discloses a circuit board and a display screen assembly capable of preventing black screen in rental LED display screen work, which comprises a receiving plate, wherein two groups of upper 220UF aluminum electrolytic capacitors are arranged at the top end of the front end of the receiving plate, upper 32P rows of nuts are respectively arranged on two sides of the top end of the front end of the receiving plate, and a stable installation anti-fragmentation structure is arranged in an installation screw hole. This can prevent to lease circuit board and display screen subassembly of LED display screen during operation black screen through being provided with the screw head, the lead screw, silica gel backing ring and end screw, during the use, when installing the dash receiver into equipment inside, screw gently in the inside screw of equipment with end screw pre-insertion in advance, after that pass the mounting screw with the set screw that screw head and lead screw constitute inside inserting end screw, and screw up through the screwdriver, two upper and lower silica gel backing rings provide the interval of buffering for the dash receiver, the function of stable installation protecting against shock has been realized, the problem of the function that the device does not possess stable installation protecting against shock is solved.
Description
Technical Field
The invention relates to the technical field of circuit components, in particular to a circuit board capable of preventing a rented LED display screen from being blacked in work and a display screen component.
Background
In markets and concert sites, the background of a large spliced LED display screen can be often seen, the spliced LED display screen is easy to have a black screen phenomenon, fault points are concentrated on two devices, namely a receiving card and a switching power supply, the devices on the receiving card are numerous, a common receiving card integrates 2 kilomega network communication interfaces, a 120P lamp panel driving interface and more than 1 ten thousand welding points, LEDs are inductive loads, the working environment is complicated, some manufacturers sacrifice an internal heat dissipation space for ultra-thinness, the working stability is reduced, one accidental capacitor fault can possibly cause abnormal screen display, the internal capacitors of the switching power supply are numerous, the LED display screen becomes a cause of the most frequent switching power supply faults, the power supply faults cause the black screen faults to be high in the whole device equipment, most of the LED circuit boards on the market are simple in structure currently, problems exist in use, the LED display screen circuit boards are directly fixed in a shell at the rear end of the display screen, the screen is easy to fall once the screen is exposed, the internal circuit boards are easy to break, the board surface is dense in the installation process, the LED display screen display is not easy to be damaged, the equipment is not easy to be damaged, the whole device is not easy to be damaged, the wiring harness, and the wiring harness is not easy to be grabbed, and the wiring harness is convenient to be installed.
Disclosure of Invention
The invention aims to provide a circuit board and a display screen assembly capable of preventing a rented LED display screen from being blacked in work, so as to solve the problem that the LED display screen assembly in the background technology does not have the function of stably installing and preventing impact.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a can prevent to lease circuit board and display screen subassembly of LED display screen work in black screen, includes the receiving plate, the top of receiving plate front end is provided with 220UF aluminum electrolytic capacitor on two sets of, the both sides on receiving plate front end top are provided with 32P row respectively and mother, the intermediate position department of receiving plate front end fixedly connected with two sets of-5V negative pole, +5V positive pole respectively, two sets of 3P white seats are installed to the front end of receiving plate, one side of receiving plate front end bottom is provided with 4052IC, the inside of receiving plate is provided with multiunit installation screw, the both sides of receiving plate joint respectively have the rubber cutting ferrule, the inside of rubber cutting ferrule opposite side is provided with the board groove, the front end of receiving plate is glued to the base, the inside rear end of base is provided with four groups of wire casing, the inside of installation screw is provided with the anti-fragmentation structure of stable installation.
The anti-fragmentation structure of stable installation includes end screw, end screw setting is in the rear end of installation screw, the front end of end screw is pegged graft and is had the lead screw, the front end welding of lead screw has the screw head, the rear end of screw head and the front end of end screw have glued the silica gel backing ring respectively.
Preferably, the screw thread of the outer portion of the screw shaft is matched with the screw thread of the inner portion of the bottom screw, and the screw shaft penetrates through the inner portion of the mounting screw hole and extends to the inner portion of the bottom screw.
Preferably, the outside top of lead screw is provided with one section blank area, the blank area broad width on the outside top of lead screw and the thickness phase-match of receiving plate, the rotatory size and the installation screw phase-match of lead screw.
Preferably, one side of the rubber cutting sleeve is provided with a finger groove, and the finger groove is trapezoidal and inwards sunken.
Preferably, the inner part of the plate groove is matched with one side of the receiving plate, and the plate groove and the receiving plate are tightly attached.
Preferably, the rubber ferrules are symmetrically distributed about a vertical center line of the receiving plate.
Preferably, the two sides of the interior of the base are respectively provided with a sliding groove, and an L-shaped inserting plate is inserted into the sliding grooves.
Preferably, the L-shaped inserting plate is vertically inserted into the sliding groove, and the L-shaped inserting plate and the sliding groove are mutually matched in size and can be freely drawn.
Preferably, the wire slots are arranged at equal intervals.
Preferably, a control card is installed at the bottom end of the front end of the receiving board, 40P rows of pins are respectively arranged on two sides of the rear end of the control card, two groups of lower 32P rows of nuts are arranged at the front end of the control card, two groups of lower 220UF aluminum electrolytic capacitors are installed at the bottom end of the front end of the control card, and two groups of 245IC are arranged in the middle position of the front end of the control card.
Compared with the prior art, the invention has the beneficial effects that: the circuit board and the display screen assembly capable of preventing the screen from being blacked in the work of renting the LED display screen not only realize the functions of stable installation and impact resistance, convenient grasping during installation and disassembly, but also realize the functions of convenient wire fixing and entanglement prevention;
(1) Through the arrangement of the screw head, the screw rod, the silica gel backing ring and the bottom screw, when the receiving plate is installed inside equipment in use, the bottom screw is firstly inserted into a screw hole inside the equipment in advance and is screwed lightly, then a fixing screw consisting of the screw head and the screw rod penetrates through an installation screw hole and is inserted into the bottom screw, and is screwed tightly through a screwdriver, a blank area on the screw rod can prevent the situation that the pressure at the installation screw hole is too high and is broken due to the fact that the screw is too tight, the receiving plate is clamped between the bottom of the screw head and the silica gel backing ring at the top of the bottom screw, even under the condition that the equipment is subjected to huge impact, the upper silica gel backing ring and the lower silica gel backing ring can also provide a buffering area for the receiving plate, the receiving plate is prevented from being broken due to rigid impact, and the impact preventing function of stable installation is achieved;
(2) By arranging the rubber clamping sleeves, the finger grooves and the plate grooves, when the receiving plate is mounted or dismounted, an operator can hold the receiving plate with a downward jaw by one hand, the thumb of a palm holds the finger groove of the rubber clamping sleeve on one side, the other four fingers hold the finger grooves of the rubber clamping sleeve on the other side, the plate grooves bite the receiving plate to prevent the receiving plate from falling off, and the soft rubber clamping sleeves cannot damage circuits on the surface of the receiving plate, so that the function of facilitating grasping during mounting and dismounting is realized;
(3) Through being provided with base, spout, L type picture peg and wire casing, during the use, when carrying out wiring work to the receiving board, the wiring of extension card in proper order goes into the wire casing in the base, after the wiring is placed one by one, aligns the L type picture peg and inserts and supports tightly downwards with the spout, and including L type picture peg and base constitute a tubular structure with the wiring parcel, the wire casing makes each department's position of wiring can not entangle, has realized making things convenient for the fixed line to prevent the function of entangling.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic front view of a receiving plate according to the present invention;
FIG. 3 is a schematic diagram of a surface circuit structure of a control card according to the present invention;
FIG. 4 is a schematic diagram of a front view structure of a control card according to the present invention
FIG. 5 is a schematic view of an enlarged top view of the stably installed anti-fragmentation structure of the present invention
FIG. 6 is a schematic view of a top-down enlarged structure of the rubber ferrule of the present invention
Fig. 7 is a schematic bottom view of the base of the present invention.
In the figure: 1. receiving a plate; 2. an upper 220UF aluminum electrolytic capacitor; 3. the upper 32P rows of the female die; 4. -5V negative electrode; 5. +5V positive electrode; 6. 3P white seats; 7. 4052IC; 8. 40P rows of needles; 9. arranging the female at the lower 32P row; 10. a lower 220UF aluminum electrolytic capacitor; 11. 245IC; 12. a control card; 13. mounting a screw hole; 14. a screw head; 15. a screw shaft; 16. a silica gel backing ring; 17. a bottom screw; 18. a rubber ferrule; 19. a finger groove; 20. a plate groove; 21. a base; 22. a chute; 23. an L-shaped plug board; 24. a wire slot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Example 1: referring to fig. 1-7, a circuit board and a display screen assembly capable of preventing black screen in rental LED display screen work, comprising a receiving plate 1, wherein two groups of upper 220UF aluminum electrolytic capacitors 2 are arranged at the top end of the front end of the receiving plate 1, two 32P rows of nuts 3 are respectively arranged at two sides of the top end of the front end of the receiving plate 1, two groups of-5V cathodes 4 and +5V anodes 5 are respectively fixedly connected at the middle position of the front end of the receiving plate 1, two groups of 3P white seats 6 are mounted at the front end of the receiving plate 1, 4052IC7 is arranged at one side of the bottom end of the front end of the receiving plate 1, a plurality of groups of mounting screw holes 13 are arranged in the receiving plate 1, and a stable mounting anti-cracking structure is arranged in the mounting screw holes 13;
referring to fig. 1-7, a circuit board and a display screen assembly capable of preventing black screen in rental LED display screen work further includes a stable installation anti-cracking structure, the stable installation anti-cracking structure includes a bottom screw 17, the bottom screw 17 is disposed at the rear end of the installation screw hole 13, a screw rod 15 is inserted into the front end of the bottom screw 17, a screw head 14 is welded at the front end of the screw rod 15, and a silicone cushion ring 16 is respectively glued to the rear end of the screw head 14 and the front end of the bottom screw 17;
the external thread of the screw rod 15 is matched with the internal thread of the bottom screw 17, the screw rod 15 penetrates through the inside of the mounting screw hole 13 and extends to the inside of the bottom screw 17, a blank area is arranged at the top end of the outside of the screw rod 15, the width of the blank area at the top end of the outside of the screw rod 15 is matched with the thickness of the receiving plate 1, the rotating size of the screw rod 15 is matched with the mounting screw hole 13, and the excessive load on the receiving plate 1 caused by over-tightening is prevented while the mounting stability is ensured;
specifically, as shown in fig. 1 and 5, when the receiving board 1 is installed inside the device, the bottom screw 17 is inserted into the screw hole inside the device in advance and is screwed slightly, then the fixing screw composed of the screw head 14 and the screw rod 15 is inserted into the bottom screw 17 through the installation screw hole 13 and is screwed by the screwdriver, the blank area on the screw rod 15 can prevent the receiving board 1 from being broken due to the excessive pressure at the installation screw hole 13 caused by the excessive screw, and the silicone cushion rings 16 at the bottom of the screw head 14 and at the top of the bottom screw 17 clamp the receiving board 1 in the middle, even if the device is subjected to a large impact, the upper and lower silicone cushion rings 16 can provide a buffering area for the receiving board 1, so that the receiving board 1 is prevented from being broken due to a rigid impact, and a stable installation and impact prevention function is realized.
Example 2: the two sides of the receiving plate 1 are respectively clamped with a rubber clamping sleeve 18, a plate groove 20 is arranged in the other side of the rubber clamping sleeve 18, a finger groove 19 is arranged on one side of the rubber clamping sleeve 18, and the finger groove 19 is trapezoidal and inwards sunken;
the inner part of the plate groove 20 is matched with one side of the receiving plate 1, the plate groove and the receiving plate are tightly attached, and the rubber clamping sleeves 18 are symmetrically distributed around the vertical center line of the receiving plate 1, so that a user can grasp the receiving plate with one hand conveniently;
specifically, as shown in fig. 1 and fig. 6, when the receiving board 1 is mounted or dismounted, the operator uses one hand with his tiger's mouth downward to buckle the receiving board 1, the thumb of the palm buckles the finger groove 19 of the rubber sleeve 18 on one side, the other four fingers buckle the finger groove 19 of the rubber sleeve 18 on the other side, the plate groove 20 bites the receiving board 1 to prevent falling off, and the soft rubber sleeve 18 does not damage the circuit on the surface of the receiving board 1, so that the function of facilitating grasping during mounting or dismounting is realized.
Example 3: a base 21 is connected to the front end of the receiving plate 1 in an adhesive mode, four groups of wire grooves 24 are formed in the rear end of the interior of the base 21, sliding grooves 22 are formed in two sides of the interior of the base 21 respectively, and an L-shaped inserting plate 23 is inserted into the interior of each sliding groove 22;
the L-shaped inserting plate 23 is vertically inserted into the sliding groove 22, the sizes of the L-shaped inserting plate and the sliding groove are mutually matched and can be freely drawn, and the wire grooves 24 are arranged at equal intervals, so that the wiring can be conveniently clamped and fixed;
specifically, as shown in fig. 1 and 7, when the receiving board 1 is connected, the extended connection wires are sequentially clamped into the wire slots 24 in the base 21, after the connection wires are placed one by one, the L-shaped inserting plates 23 are aligned with the sliding grooves 22 and inserted and downwards abutted, the L-shaped inserting plates 23 and the base 21 form a tubular structure to wrap the connection wires, the wire slots 24 enable the positions of the connection wires not to be entangled, and the function of conveniently fixing the wires and preventing the entanglement is achieved.
The bottom of the front end of the receiving plate 1 is provided with a control card 12, two sides of the rear end of the control card 12 are respectively provided with 40P rows of pins 8, the front end of the control card 12 is provided with two groups of lower 32P rows of nuts 9, the bottom of the front end of the control card 12 is provided with two groups of lower 220UF aluminum electrolytic capacitors 10, and the middle position of the front end of the control card 12 is provided with two groups of 245IC11.
The working principle is as follows: when the receiving plate 1 is used, firstly, when the receiving plate 1 is installed in equipment, the bottom screw 17 is inserted into a screw hole in the equipment in advance and is screwed lightly, then a fixing screw formed by the screw head 14 and the screw rod 15 penetrates through the installation screw hole 13 and is inserted into the bottom screw 17, and is screwed by a screwdriver, a blank area on the screw rod 15 can prevent the receiving plate 1 from being broken due to overlarge pressure at the installation screw hole 13 caused by the overtightening of the screw, and the upper and lower silica gel backing rings 16 clamp the receiving plate 1 in the middle, so that even if the equipment is subjected to huge impact, the upper and lower silica gel backing rings 16 can provide a buffering area for the receiving plate 1, the receiving plate 1 is prevented from being broken due to rigid impact, and the function of stable installation and impact prevention is realized; when the receiving plate 1 is mounted or dismounted, the tiger mouth of an operator downwards buckles the receiving plate 1 with a single hand, the thumb of the palm buckles the finger groove 19 of the rubber clamping sleeve 18 on one side, the other four fingers buckle the finger groove 19 of the rubber clamping sleeve 18 on the other side, the plate groove 20 bites the receiving plate 1 to prevent the receiving plate from falling off, and the soft rubber clamping sleeve 18 cannot damage a circuit on the surface of the receiving plate 1, so that the function of facilitating grasping during mounting and dismounting is realized; when the receiving plate 1 is subjected to wiring work, the extended wiring is sequentially clamped into the wiring grooves 24 in the base 21, after the wiring is placed one by one, the L-shaped inserting plates 23 are aligned with the sliding grooves 22 and inserted and downwards abutted tightly, the L-shaped inserting plates 23 and the base 21 form a tubular structure to wrap the wiring, and the wiring grooves 24 enable the wiring positions of all parts not to be entangled, so that the function of conveniently fixing the wiring and preventing entanglement is realized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a can prevent to lease circuit board and display screen subassembly of LED display screen work in black screen, includes receiving board (1), its characterized in that: the front end of the receiving plate (1) is provided with two groups of upper 220UF aluminum electrolytic capacitors (2), two sides of the top end of the front end of the receiving plate (1) are respectively provided with 32P rows of nuts (3), two groups of-5V cathodes (4) and +5V anodes (5) are respectively and fixedly connected to the middle position of the front end of the receiving plate (1), two groups of 3P white seats (6) are installed at the front end of the receiving plate (1), 4052IC (7) is arranged on one side of the bottom end of the front end of the receiving plate (1), a plurality of groups of installation screw holes (13) are formed in the receiving plate (1), rubber clamping sleeves (18) are respectively clamped on two sides of the receiving plate (1), a plate groove (20) is formed in the other side of the rubber clamping sleeves (18), a base (21) is glued to the front end of the receiving plate (1), four groups of wire grooves (24) are formed in the rear end of the base (21), and a stable installation anti-cracking structure is arranged in the installation screw holes (13);
stably install fragmentation-proof structure includes end screw (17), end screw (17) set up the rear end in installation screw (13), the front end of end screw (17) is pegged graft and is had lead screw (15), the front end welding of lead screw (15) has screw head (14), the rear end of screw head (14) and the front end of end screw (17) are glued respectively and are connect silica gel backing ring (16).
2. The circuit board and display screen assembly capable of preventing the rental of LED display screens from being blacked out during operation as claimed in claim 1, wherein: the screw thread of the outer portion of the screw rod (15) is matched with the screw thread of the inner portion of the bottom screw (17), and the screw rod (15) penetrates through the inner portion of the installation screw hole (13) and extends to the inner portion of the bottom screw (17).
3. The circuit board and display screen assembly capable of preventing the rental of LED display screens from being blacked out during operation as claimed in claim 1, wherein: the outside top of lead screw (15) is provided with one section blank, the blank broad width on the outside top of lead screw (15) and the thickness phase-match of dash receiver (1), the rotation dimension and installation screw (13) phase-match of lead screw (15).
4. The circuit board and display screen assembly capable of preventing the rented LED display screen from being blacked in operation as claimed in claim 1, wherein: one side of the rubber clamping sleeve (18) is provided with a finger groove (19), and the finger groove (19) is in a trapezoidal shape and is inwards sunken.
5. The circuit board and display screen assembly capable of preventing the rental of LED display screens from being blacked out during operation as claimed in claim 1, wherein: the inner part of the plate groove (20) is matched with one side of the receiving plate (1), and the inner part and the side are tightly attached.
6. The circuit board and display screen assembly capable of preventing the rental of LED display screens from being blacked out during operation as claimed in claim 1, wherein: the rubber clamping sleeves (18) are symmetrically distributed relative to the vertical center line of the receiving plate (1).
7. The circuit board and display screen assembly capable of preventing the rental of LED display screens from being blacked out during operation as claimed in claim 1, wherein: the inside both sides of base (21) are provided with spout (22) respectively, the inside grafting of spout (22) has L type picture peg (23).
8. The circuit board and display screen assembly capable of preventing the LED display screen from being blacked out in renting operation according to claim 7, wherein: the L-shaped inserting plate (23) is vertically inserted into the sliding groove (22), and the L-shaped inserting plate and the sliding groove are matched in size and can be freely drawn.
9. The circuit board and display screen assembly capable of preventing the rented LED display screen from being blacked in operation as claimed in claim 1, wherein: the wire grooves (24) are arranged at equal intervals.
10. The circuit board and display screen assembly capable of preventing the rental of LED display screens from being blacked out during operation as claimed in claim 1, wherein: the bottom of the front end of the receiving plate (1) is provided with a control card (12), two sides of the rear end of the control card (12) are respectively provided with a 40P pin array (8), the front end of the control card (12) is provided with two groups of lower 32P mother arrays (9), the bottom of the front end of the control card (12) is provided with two groups of lower 220UF aluminum electrolytic capacitors (10), and the middle position of the front end of the control card (12) is provided with two groups of 245IC (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110939654.0A CN115188283A (en) | 2021-08-16 | 2021-08-16 | Circuit board capable of preventing black screen in renting LED display screen work and display screen assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110939654.0A CN115188283A (en) | 2021-08-16 | 2021-08-16 | Circuit board capable of preventing black screen in renting LED display screen work and display screen assembly |
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| Publication Number | Publication Date |
|---|---|
| CN115188283A true CN115188283A (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110939654.0A Pending CN115188283A (en) | 2021-08-16 | 2021-08-16 | Circuit board capable of preventing black screen in renting LED display screen work and display screen assembly |
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| CN (1) | CN115188283A (en) |
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| CN210381428U (en) * | 2019-05-10 | 2020-04-21 | 广州碧然环保有限公司 | Be applied to PCB substrate waterproof coating structure |
| CN213026529U (en) * | 2020-08-21 | 2021-04-20 | 上海安沛动力科技有限公司 | Phase current leading-out structure of MOSFET power module |
| CN212936288U (en) * | 2020-08-26 | 2021-04-09 | 武汉微科中芯电子技术有限公司 | High-performance multilayer printed circuit board convenient to maintain |
| CN111898596A (en) * | 2020-09-04 | 2020-11-06 | 网易有道信息技术（北京）有限公司 | Scanning pen and scanning pen device |
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