CN217544613U

CN217544613U - Assembly structure of surface mounted lamp and PCB substrate in LED digital screen

Info

Publication number: CN217544613U
Application number: CN202221615145.9U
Authority: CN
Inventors: 郑军; 林嘉磊; 陈晶; 管博州
Original assignee: HUANGSHAN GUANGYUAN PHOTOELECTRIC TECHNOLOGY CO LTD
Current assignee: HUANGSHAN GUANGYUAN PHOTOELECTRIC TECHNOLOGY CO LTD
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-10-04
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses an assembly structure of paster lamp and PCB base plate in LED digital screen, including PCB board and paster lamp, the paster lamp includes base plate, LED lamp pearl and lamp pearl colloid, lamp pearl colloid is fixed on the base plate, LED lamp pearl encapsulation is in lamp pearl colloid and be connected with the base plate electricity, be equipped with the printing opacity slotted hole on the PCB board, the base plate is fixed in PCB board downside and is connected with PCB board electricity, lamp pearl colloid is located the printing opacity slotted hole, and the top surface height of lamp pearl colloid is not higher than the upper end opening height of printing opacity slotted hole. The utility model discloses set up the printing opacity slotted hole at the PCB board, through the bottom surface with paster lamp welded fastening at the PCB board, make LED lamp pearl and lamp pearl colloid hide at the PCB inboard inside thickness in order to reduce the casing to make the digital screen of LED can obtain ultra-thin thickness and can use in thinner product.

Description

Assembly structure of surface mounted lamp and PCB substrate in LED digital screen

Technical Field

The utility model relates to a LED digital display screen especially relates to an assembly structure of paster lamp and PCB base plate among LED digital display screen.

Background

The conventional LED digital screen structure comprises a shell, a PCB and an LED patch lamp, wherein the PCB is fixed in the shell, and the LED patch lamp is welded on the upper surface of the PCB and is electrically connected with the PCB. For example, an issued publication No. CN211207845U, a chinese patent issued 2020, 8, 7 and the like discloses an iced blue LED digital display screen, which includes a digital display screen casing and a PCB board fixed inside the digital display screen casing and welded with LED patch lamps, wherein a through hole is formed in the digital display screen casing corresponding to the upper end of the PCB board, the LED patch lamps fixedly welded on the PCB board correspond to the through hole, a transparent or translucent mask is further attached to the outer surface of the digital display screen casing, an iced blue ink layer is further printed on the outer surface of the mask in a silk-screen manner, and a light source emitted by the LED patch lamps is transmitted to the mask with the iced blue ink layer through the through hole, so that the digital display screen displays iced blue. The LED digital display screen has the following defects: the surface mount lamp is welded on the upper surface of the PCB, the colloid of the packaged lamp beads in the surface mount lamp protrudes out of the surface of the PCB, the thickness of the shell can be increased, the whole thickness of the LED digital display screen is large, and the LED digital display screen cannot be applied to products with thin requirements for the thickness of the LED digital display screen.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve among the current LED digital screen the above-mentioned problem that the mounting structure of paster lamp and PCB base plate exists, provide a simple structure, the equipment is convenient, can reduce the mounting structure of paster lamp and PCB base plate among the LED digital screen of the whole thickness of LED digital display screen.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model discloses an assembly structure of paster lamp and PCB base plate in LED digital screen, including PCB board and paster lamp, the paster lamp includes base plate, LED lamp pearl and lamp pearl colloid, lamp pearl colloid is fixed on the base plate, LED lamp pearl encapsulation is in lamp pearl colloid and be connected with the base plate electricity, be equipped with the printing opacity slotted hole on the PCB board, the base plate is fixed in PCB board downside and is connected with PCB board electricity, lamp pearl colloid is located the printing opacity slotted hole, and the top surface height of lamp pearl colloid is not higher than the upper end opening height of printing opacity slotted hole. The utility model discloses in set up the printing opacity slotted hole at the PCB board, the digital display window position on the printing opacity slotted hole that sets up position and the casing is corresponding, through with paster lamp welded fastening in the bottom surface of PCB board, makes LED lamp pearl and lamp pearl colloid hide in PCB inboard (in the printing opacity slotted hole promptly) with the thickness that reduces the casing to make the digital screen of LED can obtain ultra-thin thickness and can use in thinner product.

Preferably, the inner wall of the light-transmitting groove hole is provided with a light blocking ring, the upper part of the lamp bead colloid is positioned in the light blocking ring, the shape of the upper part of the lamp bead colloid is matched with the inner wall of the light blocking ring, and the top height of the LED lamp bead is not higher than the lower end face height of the light blocking ring. There are transmission and refraction between the light at the LED lamp pearl edge of paster lamp and the inner wall of printing opacity slotted hole, consequently can lead to the digital screen display of LED digital edge darker, influence the luminous visual effect of LED digital screen, for solving this problem, the utility model discloses set up the light-blocking circle on the inner wall of printing opacity slotted hole, the circle that is in the light can shelter from the light at LED lamp pearl edge, and the reflection and the refraction of the marginal light of control LED lamp pearl make the colour of the digital screen display number of LED more even to improve the effect of the luminous vision of LED digital screen with the acquisition.

Preferably, the upper end surface of the stop ring is in an inclined surface structure inclined outwards, and the upper end surface of the stop ring surrounds to form the light expanding hole section. The light-expanding hole section has the light-guiding effect, so that light can be uniformly dispersed, the light-emitting angle of the LED lamp beads can be increased, the light-emitting angle of the LED lamp beads can cover the whole display area, and the point light source is prevented from being caused to influence the display effect of the LED digital screen.

Preferably, the height of the top of the LED lamp bead is lower than the height of the lower end face of the light blocking ring.

Preferably, the light blocking ring and the PCB are of a homogeneous and integral structure.

Preferably, the area of the substrate is larger than that of the light-transmitting slot.

Preferably, the height of the top surface of the bead colloid is lower than the height of an opening at the upper end of the light-transmitting slotted hole.

Therefore, the utility model discloses following beneficial effect has:

(1) The PCB is provided with a light-transmitting slot hole, and the surface mounted lamp is welded and fixed on the bottom surface of the PCB, so that the LED lamp beads and the lamp bead colloid are hidden in the PCB to reduce the thickness of the shell, and the LED digital screen can obtain ultrathin thickness and can be applied to thinner products;

(2) The inner wall of the light-transmitting groove hole is provided with the light blocking ring to control the reflection and refraction of the edge light of the LED lamp bead, so that the color of the displayed figures of the LED digital screen is more uniform, and the effect of improving the luminous vision of the LED digital screen is achieved.

Drawings

Fig. 1 is a plan view of the present invention.

Fig. 2 isbase:Sub>A half sectional view taken alongbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is an enlarged view of fig. 2 at B.

In the figure: the LED light source comprises a PCB (printed circuit board) 1, a substrate 2, LED lamp beads 3, lamp bead colloid 4, a light-transmitting slot hole 5, a light-blocking ring 6 and a light-expanding hole section 7.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, the assembly structure of paster lamp and PCB base plate in LED digital screen that fig. 2 shows, including PCB board 1 and paster lamp, the paster lamp includes base plate 2, LED lamp pearl 3 and lamp pearl colloid 4 (as shown in fig. 3), the lamp pearl colloid is fixed on the base plate, LED lamp pearl encapsulation is in lamp pearl colloid and is connected with the base plate electricity, be equipped with printing opacity slotted hole 5 on the PCB board, the base plate is fixed in PCB board downside and is connected with PCB board electricity, the area of base plate is greater than the area of printing opacity slotted hole, be equipped with light blocking ring 6 on the inner wall of printing opacity slotted hole, light blocking ring and PCB board be the same looks body structure, light blocking ring's up end is established to the inclined plane structure that leans out, light blocking ring's up end surrounds and forms light expanding hole section 7, the upper portion of lamp pearl colloid is located light blocking ring, the upper portion shape of lamp pearl colloid and the inner wall looks adaptation that light blocking ring was blocked the lamp pearl colloid, the top surface height of lamp pearl colloid is less than the upper end opening height of printing opacity slotted hole, the top height of LED lamp pearl is less than light blocking ring's lower terminal surface height.

The utility model discloses an assembly method does: put the paster lamp in printing opacity slotted hole below, insert the back in the light blocking circle with the upper portion of lamp pearl colloid, with base plate and PCB board welded fastening and realize the electricity and be connected, repeat above-mentioned step, after all installing lamp pearl colloid in every printing opacity slotted hole, fix the PCB board installation in casing (the casing is not shown in the figure), accomplish the equipment promptly at the casing surface pad pasting.

The utility model discloses can maintain same luminous effect under the condition that reduces the whole thickness of casing, the event can be used in thinner product.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims

1. The utility model provides an assembly structure of paster lamp and PCB base plate in LED digital screen, includes PCB board (1) and paster lamp, the paster lamp includes base plate (2), LED lamp pearl (3) and lamp pearl colloid (4), the lamp pearl colloid is fixed on the base plate, LED lamp pearl encapsulation is connected in lamp pearl colloid and with the base plate electricity, a serial communication port, be equipped with printing opacity slotted hole (5) on the PCB board, the base plate is fixed in PCB board downside and is connected with PCB board electricity, the lamp pearl colloid is located the printing opacity slotted hole, and the top surface height of lamp pearl colloid is not higher than the upper end opening height of printing opacity slotted hole.

2. The structure of assembling a surface mounted lamp and a PCB substrate in an LED digital screen according to claim 1, wherein an aperture stop (6) is disposed on the inner wall of the light-transmitting slot, the upper portion of the bead colloid is located in the aperture stop, the upper portion of the bead colloid is shaped to fit the inner wall of the aperture stop, and the top height of the LED bead is not higher than the lower end surface height of the aperture stop.

3. The structure for assembling a chip lamp and a PCB substrate in an LED digital screen as recited in claim 2, wherein the upper end surface of the light-blocking ring is designed as an inclined surface structure inclined outward, and the upper end surface of the light-blocking ring surrounds to form a light-expanding section (7).

4. The structure for assembling a surface mounted lamp and a PCB substrate in an LED digital screen according to claim 2 or 3, wherein the height of the top of the LED lamp bead is lower than the height of the lower end surface of the light-blocking ring.

5. The structure of claim 2, wherein the light-blocking ring and the PCB are of a homogeneous structure.

6. The structure of claim 1, wherein the area of the substrate is larger than that of the light-transmitting slot.

7. The structure of claim 1, wherein the height of the top surface of the bead gel is lower than the height of the opening at the upper end of the light-transmitting slot.