LED display screen control card
By adopting a combined structure of rotating locking member and torsion spring in the LED display control card, the problems of loose power connection and poor contact are solved, and stable power supply fixation and simple operation are achieved.
Patent Information
- Application Number
- CN202420789590.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-16
AI Technical Summary
When the LED display control card is connected to the power supply, it is prone to loosening and poor contact problems, resulting in the loss of power cord or bolts.
An LED display control card is designed, adopting a combined structure of a rotating locking member and a torsion spring. Through the cooperation of the slide groove and the limiting block, the power plug is locked and fixed.
It effectively reduces the shaking and loosening of the power plug, avoids the loss of fixtures, simplifies locking operation, and improves the convenience of use.
Smart Images
Figure CN222691014U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LED display screens, in particular to a LED display screen control card. Background Art
[0002] The basic components of LED display screens are display modules, LED display screen controllers, power supply systems, and frame parts. LED display screen controllers, also known as LED asynchronous control systems or LED display screen control cards, are the core components of LED display screens. They are responsible for receiving screen display information from the computer serial port, placing it into the frame memory, and generating the serial display data and scanning control timing required for the LED display screen in a partitioned driving manner.
[0003] When the display screen is in use, the internal control card needs to be connected to an external power source; however, when the power plug is connected to the power connector on the control card, it is usually loose, which is prone to poor contact; although bolts can be provided on the power plug or the power connector to fix the power connector and the power plug, when the power cord is not in use, the bolts on the power cord or the power connector are relatively loose and are prone to being lost.
[0004] So we proposed a LED display screen control card to solve the above problems. Utility Model Content
[0005] The purpose of the present utility model is to solve the above-mentioned problems.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an LED display screen control card, comprising a substrate and a mounting plate mounted on the substrate, a power connector mounted on the mounting plate, a power plug inserted on the power connector, a fixed shell mounted on one end of the power connector, a rotating shaft mounted in a rotatable manner inside the fixed shell, one end of the rotating shaft passes through the fixed shell and is fixed with a cylindrical locking piece, a sliding groove is provided on the outer surface of the locking piece, a mounting hole corresponding to the locking piece is installed on the power plug, and a limit block used in conjunction with the sliding groove is provided on the circumferential surface of the mounting hole.
[0007] Further: the shape of the slide groove is an "arc" shape.
[0008] Further: a torsion spring is sleeved on the rotating shaft, and both ends of the torsion spring are respectively inserted in the fixed sleeves, and the two fixed sleeves are respectively fixed to the inner end wall of the fixed shell and one side of the fixed disk, and the fixed disk is fixed on the rotating shaft.
[0009] Further: a slope inclined outwards is provided on the side of the slide groove close to the power plug.
[0010] Further: a rotating sleeve is fixed inside the fixed shell, and the rotating shaft is rotatably installed inside the rotating sleeve.
[0011] Furthermore: a certain gap is left between the locking member and the side wall of the power connector, and the distance of the gap is greater than the depth of the mounting hole.
[0012] Beneficial effects of the utility model:
[0013] The utility model has a locking piece rotatably installed inside the fixed shell. When the limit block in the installation hole passes through the slide groove, the locking piece can be rotated, so that the limit block in the installation hole is limited by the locking piece, which plays a locking role and reduces the shaking or loosening of the power plug. Therefore, it can be replaced by bolts for fixing and avoid the loss of the fixing piece.
[0014] The utility model has a torsion spring sleeved on the rotating shaft. When the power plug is installed, the limit block in the installation hole can be aligned with the inclined slide groove on the outer surface of the locking piece, so that the locking piece drives the rotating shaft to twist and drives the torsion spring to squeeze. If the limit block is disengaged from the slide groove, the torsion spring in the squeezed state loses the squeezing force and returns to its original state, so that the torsion spring can drive the locking piece to rotate and lock the limit block, thereby reducing the process of workers twisting the locking piece, thereby bringing convenience to the workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the partial explosion structure of the utility model;
[0017] Figure 3 It is a partial enlarged structural schematic diagram of A in the utility model;
[0018] Figure 4 It is a schematic diagram of the internal structure of the fixed shell in the utility model.
[0019] The names corresponding to the marks in the figure are:
[0020] 1. Base plate; 2. Mounting plate; 3. Power connector; 4. Power plug; 5. Fixed shell; 6. Rotating shaft; 7. Locking piece; 8. Slide groove; 9. Mounting seat; 10. Mounting hole; 11. Limit block; 12. Torsion spring; 13. Fixed sleeve; 14. Fixed plate; 15. Rotating sleeve. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0022] A LED display control card includes a substrate 1 installed inside an LED display (the LED display belongs to the prior art and will not be described in detail in this application), a mounting plate 2 is installed at the edge of the substrate 1, and the mounting plate 2 is "L" shaped, a power connector 3 is installed on the mounting plate 2 by a plurality of bolts 16, and a connection port of the power connector 3 extends through the mounting plate 2 to the outside of the LED display, and a power plug 4 on the power line is inserted into the opening of the power connector 3.
[0023] A fixed shell 5 is symmetrically fixed to one end of the power connector 3, and the interior of the fixed shell 5 is a hollow structure. A rotating sleeve 15 is fixed to the fixed shell 5, and a rotating shaft 6 is rotatably installed inside the rotating sleeve 15. A torsion spring 12 is also mounted on the rotating shaft 6, and the two ends of the torsion spring 12 are respectively inserted in the fixed sleeve 13, one of the fixed sleeves 13 is fixed to the inner end wall of the fixed shell 5, and the other fixed sleeve 13 is fixed to one side of the fixed disk 14, and the fixed disk 14 is fixed on the rotating shaft 6. Through the arrangement of the torsion spring 12 and the fixed sleeve 13, a reset function is played. A locking member 7 is fixed to one end of the rotating shaft 6 passing through the fixed shell 5, and the locking member 7 is "cylindrical". A certain gap is left between one side of the locking member 7 and one side of the fixed shell 5. A plurality of inclined slide grooves 8 are equidistantly provided on the circumferential surface of the locking member 7 along the axial direction, and an outwardly inclined slope is provided at one end of the slide groove 8 away from the fixed shell 5.
[0024] The power plug 4 is provided with a mounting seat 9 corresponding to the fixed shell 5, and the mounting seat 9 is provided with a mounting hole 10. It should be noted that: the gap between the locking member 7 and the fixed shell 5 is greater than the depth of the mounting hole 10, and the inner wall of the mounting hole 10 is fixed with a plurality of limit blocks 11 at equal intervals along the circumferential direction, and the limit blocks 11 can slide in the slide groove 8.
[0025] When the power plug 4 is installed on the power connector 3, the power plug 4 is first inserted. When the power plug 4 is inserted into the inside of the power connector 3, the mounting hole 10 moves to the locking member 7, so that the limit block 11 moves into the slide groove 8, so that the limit block 11 is squeezed during the movement of the slide groove 8, so that the locking member 7 drives the rotating shaft 6 to rotate, and the rotating shaft 6 can squeeze the torsion spring 12 during the rotation, so that the torsion spring 12 changes from the original state to the squeezed state. If the limit block 11 is moved out of the slide groove 8, the squeezing force on the locking member 7 is lost, so that the torsion spring 12 changes from the compressed state to the original state and drives the rotating shaft 6 to rotate, so that the rotating shaft 6 drives the locking member 7 to rotate. If the limit block 11 is located between the two slide grooves 8, the locking work is completed.
[0026] When the power plug 4 is to be pulled out, the locking member 7 is rotated so that the sliding groove 8 on the locking member 7 is aligned with the limiting block 11, and the power plug 4 can be directly pulled out.
Claims
1. An LED display screen control card, comprising a substrate (1) and a mounting plate (2) mounted on the substrate (1), a power connector (3) mounted on the mounting plate (2), a power plug (4) plugged into the power connector (3), characterized in that: A fixed shell (5) is installed at one end of the power connector (3), a rotating shaft (6) is rotatably installed inside the fixed shell (5), one end of the rotating shaft (6) penetrates the fixed shell (5) and is fixed with a cylindrical locking member (7), a sliding groove (8) is provided on the outer surface of the locking member (7), a mounting seat (9) corresponding to the fixed shell (5) is provided on the power plug (4), a mounting hole (10) corresponding to the locking member (7) is provided on the mounting seat (9), and a limiting block (11) used in conjunction with the sliding groove (8) is provided on the circumferential surface of the mounting hole (10).
2. The LED display screen control card according to claim 1, characterized in that: The shape of the slide groove (8) is an inclined shape.
3. The LED display screen control card according to claim 2, characterized in that: The rotating shaft (6) is provided with a torsion spring (12), and the two ends of the torsion spring (12) are respectively inserted into fixed sleeves (13). The two fixed sleeves (13) are respectively fixed to the inner end wall of the fixed shell (5) and one side of the fixed disk (14), and the fixed disk (14) is fixed to the rotating shaft (6).
4. The LED display screen control card according to claim 1 or 2, characterized in that: A slope surface inclined outwards is provided on one side of the slide groove (8) close to the power plug (4).
5. The LED display screen control card according to claim 1, characterized in that: A rotating sleeve (15) is fixed inside the fixed shell (5), and the rotating shaft (6) is rotatably mounted inside the rotating sleeve (15).
6. The LED display screen control card according to claim 1, characterized in that: A certain gap is left between the locking member (7) and the side wall of the power connector (3), and the distance of the gap is greater than the depth of the mounting hole (10).