CN217333576U

CN217333576U - LED display screen with point-by-point detection

Info

Publication number: CN217333576U
Application number: CN202220812335.3U
Authority: CN
Inventors: 李正双
Original assignee: Shenzhen Yushi Technology Co ltd
Current assignee: Shenzhen Yushi Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-08-30
Anticipated expiration: 2032-04-11

Abstract

The utility model provides a LED display screen with point-by-point detection, including set casing, detection piece, circuit board and LED lamp pearl, the inner wall fixed mounting of set casing has the circuit board, and the positive array distribution of circuit board is provided with a plurality of LED lamp pearls and a plurality of detection piece, and the back of circuit board is connected with the wiring harness, and the inner wall of set casing is installed the glass board that covers the circuit board; the back embedding of set casing is provided with a plurality of air-supply lines and a plurality of exhaust pipe, and the inner wall fixed mounting of a plurality of air-supply lines and a plurality of exhaust pipe has the exhaust frame, and the inside of air-supply line is provided with the fan. The utility model provides a detection piece and LED lamp pearl are established ties, can detect out the LED lamp pearl of establishing ties between two detection pieces of detection of ohmmeter, detect out the electric current flow condition of LED lamp pearl, and then judge whether LED lamp pearl damages, perhaps circuit on the circuit board damages, can inspect point by point, very convenient completion is overhauld and maintenance work.

Description

LED display screen with point-by-point detection

Technical Field

The utility model relates to a LED display screen technical field especially relates to a LED display screen with point-by-point detects.

Background

The LED display screen is composed of LED lamp beads in an array, and the LED lamp beads are controlled by the single chip microcomputer to independently emit light, so that the required patterns are displayed on the LED display screen;

in the LED display screen in the prior art, due to the fact that the number of the LED lamp beads is large, after a small number of LED lamp beads are damaged, the reason that the LED lamp beads are damaged cannot be checked point by point, the LED lamp beads cannot be normally lightened after being replaced, and time and labor are wasted due to inconvenience in maintenance, so that the LED display screen with point-by-point detection is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art because the quantity of LED lamp pearl is numerous, a small amount of LED lamp pearl damages the back, can't carry out the check point by point to the reason that LED lamp pearl damaged, leads to unable normal the lighting after the LED lamp pearl is changed, overhauls inconvenient problem that wastes time and energy to a LED display screen with point by point detection is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an LED display screen with point-by-point detection comprises a fixed shell, detection pieces, a circuit board and LED lamp beads, wherein the circuit board is fixedly arranged on the inner wall of the fixed shell, a plurality of LED lamp beads and a plurality of detection pieces are distributed on the front side of the circuit board in an array manner, the back side of the circuit board is connected with a wire harness, and a glass plate covering the circuit board is arranged on the inner wall of the fixed shell; the back embedding of set casing is provided with a plurality of air-supply lines and a plurality of exhaust pipe, and the inner wall fixed mounting of a plurality of air-supply lines and a plurality of exhaust pipe has the exhaust frame, and the inside of air-supply line is provided with the fan.

Further preferably, the exhaust frame comprises a ventilation frame, tension steel wires, a connecting block and a plastic sheet, the ventilation frame penetrates through the middle of the exhaust frame, the plastic sheet is tightly attached to the end of the ventilation frame, the tension steel wires are fixedly mounted on the side face of the exhaust frame, and the connecting block is fixedly arranged on the end of each tension steel wire penetrating through the plastic sheet.

Further preferably, the detection piece comprises a detection end and a connecting end, the detection end protruding outwards is integrally formed on the front face of the detection piece, and the connecting end extending outwards is integrally formed on the two sides of the detection piece.

Further preferred, detection piece, sense terminal and link are electrically conductive material, and the thickness of link is less than the thickness of detection piece, and LED lamp pearl keeps establishing ties with the link of two detection pieces.

Preferably, the plastic sheet is tightly attached to a one-way conduction channel formed at the end part of the ventilation frame, the conduction directions of the channels in the air inlet pipe and the air exhaust pipe are opposite, and the length of the air exhaust pipe is consistent with the thickness of the fixed shell.

Preferably, the glass plate is provided with through holes distributed in an array, the through holes are positioned on the front surface of the detection end, and the wire harness penetrates through the back surface of the fixing shell.

The utility model has the advantages that: the detection piece is connected with the LED lamp beads in series, the LED lamp beads connected between the two detection pieces of the ohmmeter in series can be detected, the current flowing condition of the LED lamp beads is detected, whether the LED lamp beads are damaged or not is judged, or whether a circuit on a circuit board is damaged or not is judged, point-by-point inspection can be carried out, and overhauling and maintenance work can be completed conveniently.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a left side view of the whole body of the present invention;

FIG. 3 is an enlarged view of the air inlet pipe of the present invention;

fig. 4 is a schematic structural view of the detecting member of the present invention.

In the figure: the device comprises a fixed shell 1, a detection piece 2, a detection end 21, a connecting end 22, a circuit board 3, LED lamp beads 4, a wire harness 5, a glass plate 6, an air inlet pipe 7, an exhaust pipe 8, an exhaust frame 9, a ventilation frame 91, a tension steel wire 92, a connecting block 93, a plastic sheet 94 and a fan 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, an LED display screen with point-by-point detection includes a fixed casing 1, detection pieces 2, a circuit board 3 and LED lamp beads 4, the inner wall of the fixed casing 1 is fixedly mounted with the circuit board 3, the front side of the circuit board 3 is distributed with a plurality of LED lamp beads 4 and a plurality of detection pieces 2 in an array manner, the back side of the circuit board 3 is connected with a wire harness 5, and the inner wall of the fixed casing 1 is mounted with a glass plate 6 covering the circuit board 3; the back of the fixed shell 1 is embedded with a plurality of air inlet pipes 7 and a plurality of exhaust pipes 8, the inner walls of the air inlet pipes 7 and the exhaust pipes 8 are fixedly provided with an exhaust frame 9, and a fan 10 is arranged inside the air inlet pipe 7.

Preferably, the air exhaust frame 9 comprises an air exhaust frame 91, tension steel wires 92, a connecting block 93 and plastic sheets 94, the air exhaust frame 91 is arranged in the middle of the air exhaust frame 9 in a penetrating manner, the plastic sheets 94 are tightly attached to the end parts of the air exhaust frame 91, a plurality of tension steel wires 92 are fixedly mounted on the side surfaces of the air exhaust frame 9, the end parts of the tension steel wires 92 penetrate through the plastic sheets 94 and are fixedly provided with the connecting block 93, the plastic sheets 94 are tightly attached to one-way conduction channels formed at the end parts of the air exhaust frame 91, the conduction directions of the channels inside the air inlet pipe 7 and the air exhaust pipe 8 are opposite, and the length of the air exhaust pipe 8 is consistent with the thickness of the fixed shell 1;

during specific implementation, the tension steel wire 92 pulls the plastic sheet 94 to be attached to the ventilation frame 91, so that the ventilation frame 91 is in one-way conduction, when the fan 10 does not operate, external air cannot enter the fixed casing 1, dust is prevented from entering the fixed casing 1, when the fan 10 operates, the air drives the plastic sheet 94 inside the air inlet pipe 7 to move, the air enters the fixed casing 1 through the air inlet pipe 7, the air blows the plastic sheet 94 inside the exhaust pipe 8 to move, the air is discharged out of the fixed casing 1 through the exhaust pipe 8, and the heat dissipation work is completed.

Preferably, the detecting member 2 comprises a detecting end 21 and a connecting end 22, the detecting end 21 protruding outwards is integrally formed on the front surface of the detecting member 2, and the connecting ends 22 extending outwards are integrally formed on the two sides of the detecting member 2;

the specific implementation seems that the detection parts 2 are connected in series with the LED lamp beads 4, the LED lamp beads 4 connected in series between the two detection parts 2 of the ohmmeter can be used for detecting the current flowing condition of the LED lamp beads 4, and further judging whether the LED lamp beads 4 are damaged or not, or whether a circuit on the circuit board 3 is damaged or not, the detection can be carried out point by point to determine whether the LED lamp beads 4 need to be replaced or whether the circuit on the circuit board 3 needs to be maintained.

Preferably, detection piece 2, sense terminal 21 and link 22 are electrically conductive material, and the thickness of link 22 is less than the thickness of detection piece 2, and LED lamp pearl 4 keeps establishing ties with the link 22 of two detection pieces 2, and sense terminal 21 is connected on LED lamp pearl 4, and sense terminal 21 is established to the through-hole cover of outer arch and glass board 6, can put in external air passes through the through-hole and gets into set casing 1.

Preferably, the through-holes that the trompil permutation distributes are opened in glass board 6, and the through-hole is located the front of test end 21, and electrical wiring harness 5 runs through the back of set casing 1, and detection contact passes the through-hole and supports on test end 21, judges whether inside current that has of LED lamp pearl 4 flows through, and then judges whether LED lamp pearl 4 damages, very convenient maintenance work that carries on.

The utility model discloses in, in the use, at first, provide the power for circuit board 3 and LED lamp pearl 4 through electrical wiring harness 5, secondly switch on the power of fan 10, fan 10 produces the air current and flows in air-supply line 7 is inside, the air drives the inside plastic sheet 94 of air-supply line 7 and removes, hi tension steel 92 is stretched, the air flows through ventilation frame 91 and gets into in the air-supply line 7, make during the quick drum-in set casing 1 of air, in the inside air admission exhaust pipe 8 of set casing 1, the air blows the inside plastic sheet 94 of exhaust pipe 8 and removes, the air flows through the inside ventilation frame 91 of exhaust pipe 8, the air has exhaust pipe 8 to discharge, accomplish circuit board 3's radiating work.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a LED display screen with point-by-point detection, includes set casing (1), detects piece (2), circuit board (3) and LED lamp pearl (4), and the inner wall fixed mounting of set casing (1) has circuit board (3), its characterized in that: the LED lamp bulb fixing device is characterized in that a plurality of LED lamp beads (4) and a plurality of detection pieces (2) are distributed on the front side of a circuit board (3) in an array mode, a wire harness (5) is connected to the back side of the circuit board (3), and a glass plate (6) covering the circuit board (3) is installed on the inner wall of a fixing shell (1);

the back embedding of set casing (1) is provided with a plurality of air-supply lines (7) and a plurality of exhaust pipe (8), and the inner wall fixed mounting of a plurality of air-supply lines (7) and a plurality of exhaust pipe (8) has exhaust frame (9), and the inside of air-supply line (7) is provided with fan (10).

2. The LED display screen with point-by-point detection according to claim 1, wherein the exhaust frame (9) comprises a ventilation frame (91), tension steel wires (92), a connecting block (93) and a plastic sheet (94), the ventilation frame (91) penetrates through the middle of the exhaust frame (9), the plastic sheet (94) is tightly attached to the end of the ventilation frame (91), a plurality of tension steel wires (92) are fixedly installed on the side surface of the exhaust frame (9), and the connecting block (93) is fixedly arranged on the end of each tension steel wire (92) penetrating through the plastic sheet (94).

3. The LED display screen with point-by-point detection according to claim 2, wherein the detection member (2) comprises a detection end (21) and a connection end (22), the detection end (21) protruding outwards is integrally formed on the front surface of the detection member (2), and the connection end (22) extending outwards is integrally formed on both sides of the detection member (2).

4. The LED display screen with point-by-point detection according to claim 3, wherein the detection member (2), the detection end (21) and the connection end (22) are made of conductive materials, the thickness of the connection end (22) is smaller than that of the detection member (2), and the LED lamp beads (4) are connected with the connection ends (22) of the two detection members (2) in series.

5. The LED display screen with point-by-point detection function according to claim 3, wherein the plastic sheet (94) is tightly attached to a one-way conduction channel formed at the end of the ventilation frame (91), the conduction directions of the channels inside the air inlet pipe (7) and the air outlet pipe (8) are opposite, and the length of the air outlet pipe (8) is consistent with the thickness of the fixed shell (1).

6. The LED display screen with point-by-point detection according to claim 1, wherein the glass plate (6) is provided with through holes distributed in an array, the through holes are positioned on the front surface of the detection end (21), and the wire harness (5) penetrates through the back surface of the fixed shell (1).