CN210008038U

CN210008038U - PCBA (printed circuit board assembly) set top box patch

Info

Publication number: CN210008038U
Application number: CN201920303069.XU
Authority: CN
Inventors: 张未繁; 李武; 江忠胜; 娄阳
Original assignee: Zhuhai Hongsen Electronic Technology Co Ltd
Current assignee: Zhuhai Hongsen Electronic Technology Co Ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-01-31
Anticipated expiration: 2029-03-11

Abstract

The utility model discloses an PCBA STB paster, including upper substrate, infrabasal plate, the top surface four corners of infrabasal plate all is equipped with the pin, and both sides respectively articulate has the fixed cramp of metal around the infrabasal plate, be equipped with the metal contact on the bottom surface of upper substrate and the corresponding position of pin, through the fixed cramp of metal with the upper substrate straining under on the base plate, metal contact and pin point contact, the top surface of upper substrate has the MOS pipe, the metal contact circuit intercommunication of MOS pipe and upper substrate bottom surface the utility model discloses novel structure, through the metal stationary blade with the connected mode replacement traditional direct welding of MOS pipe straining, easily maintenance dismantlement backward avoids melting tin many times, the welding causes the secondary damage to the PCBA mainboard.

Description

PCBA (printed circuit board assembly) set top box patch

Technical Field

The utility model relates to an electronic equipment technical field specifically is kinds of PCBA STB paster.

Background

The set-top box is devices that connect the television to external sources, which can convert compressed digital signals into television content and display it on the television, the signals can be broadcast from cable, satellite antenna, broadband network, and terrestrial .

Have the PCBA mainboard in the STB and be used for handling exchange data information, through long-time use, components and parts on the PCBA mainboard are like MOS pipe, the easy ageing scrapping such as electric capacity, influence the normal operating of STB, there is the potential safety hazard even, and the components and parts majority of PCBA mainboard adopt traditional paster welding mode in present STB, with components and parts beading on the PCBA mainboard, maintain backward, change in-process need be dismantled through melting tin, the troublesome poeration, and melt tin many times, the welding also causes the secondary harm to the PCBA mainboard easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing kinds of technical scheme that can solve above-mentioned problem.

PCBA STB patch comprises an upper substrate and a lower substrate, wherein pins are arranged at four corners of the top surface of the lower substrate, metal fixing buckle pieces are hinged to the front side and the rear side of the lower substrate respectively, metal contact pieces are arranged at positions, corresponding to the pins, of the bottom surface of the upper substrate, the upper substrate is fastened on the lower substrate through the metal fixing buckle pieces, the metal contact pieces are in point contact with the pins, an MOS (metal oxide semiconductor) tube is arranged on the top surface of the upper substrate, and the MOS tube is in circuit communication with the metal contact pieces at the bottom surface of the upper.

, the top of the pin has an arc-shaped protrusion, and the metal contact is in point contact with the top of the arc-shaped protrusion.

, fastening blocks extend from the front and back sides of the upper base plate, and the metal fixing buckle pieces are fastened on the fastening blocks.

Further , the lower base plate has a support block in the center, the top surface of the support block contacting the bottom surface of the upper base plate.

Compared with the prior art, the utility model discloses the beneficial effect who gains does: the utility model discloses novel structure replaces traditional direct welding through the connected mode of metal stationary blade with the MOS pipe straining, and easily maintenance dismantles backward, avoids melting tin, welding many times and causes the secondary damage to the PCBA mainboard.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic structural view of kinds of PCBA set-top boxes patches of the present invention;

fig. 2 is a schematic structural view of the pin of the present invention;

fig. 3 is a partial enlarged view of the position a in the present invention.

Detailed Description

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

Referring to fig. 1-2, PCBA (printed circuit board assembly) set top box patches comprise an upper substrate 1 and a lower substrate 2, wherein four corners of the top surface of the lower substrate 2 are provided with pins 3, the front side and the rear side of the lower substrate 2 are respectively hinged with a metal fixing buckle piece 4, a metal contact piece 5 is arranged at the position, corresponding to the pins, of the bottom surface of the upper substrate 1, the upper substrate 1 is fastened on the lower substrate 2 through the metal fixing buckle pieces 4, the metal contact piece 5 is in point contact with the pins 3, the top surface of the upper substrate 1 is provided with a MOS (metal oxide semiconductor) transistor 6, and the MOS transistor 6 is in circuit communication with the.

, the top of the pin 3 has an arc-shaped protrusion 31, and the metal contact 5 makes point contact with the top of the arc-shaped protrusion 31.

, fastening blocks 11 extend from the front and rear sides of the upper base plate 1, and the metal fixing buckle 4 is fastened on the fastening blocks 11.

Further , the lower substrate 2 has a supporting block 21 at the center, and the top surface of the supporting block 21 is in contact with the bottom surface of the upper substrate 1.

It will thus be seen that the present invention is illustrative and not restrictive, and the scope of the invention is defined 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.

Claims

The PCBA set-top box patches comprise an upper substrate and a lower substrate, and are characterized in that pins are arranged at four corners of the top surface of the lower substrate, metal fixing buckling pieces are hinged to the front side and the rear side of the lower substrate respectively, metal contact pieces are arranged on the positions, corresponding to the pins, of the bottom surface of the upper substrate, the upper substrate is fastened on the lower substrate through the metal fixing buckling pieces, the metal contact pieces are in point contact with the pins, an MOS (metal oxide semiconductor) tube is arranged on the top surface of the upper substrate, and the MOS tube is in circuit communication with the metal contact pieces on the bottom surface.
2. The PCBA set top box patch as recited in claim 1, wherein the top of the pins have arcuate projections, the metal tabs making point contact with the top of the arcuate projections.
3. The PCBA set top box patch as claimed in claim 1, wherein the upper substrate has fastening blocks extending from the front and rear sides thereof, the metal securing tabs being fastened to the fastening blocks.
4. The PCBA set-top box patch as claimed in claim 1, wherein the lower base plate has a support block at its center, the top surface of the support block being in contact with the bottom surface of the upper base plate.