CN218941423U

CN218941423U - Novel PCBA structure

Info

Publication number: CN218941423U
Application number: CN202223025072.0U
Authority: CN
Inventors: 韩欢庆; 韦庆丰
Original assignee: Shenzhen Weichuangyi Technology Co ltd
Current assignee: Shenzhen Weichuangyi Technology Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-04-28
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a novel PCBA structure, which relates to the technical field of semiconductor manufacturing, and comprises a PCB (printed circuit board), wherein a plurality of electronic components are mounted at the upper end of the PCB, a mounting ring is movably sleeved on the outer surface of the PCB, a shell is mounted at the upper end of the mounting ring, a plurality of positioning grooves are formed in the front part of the upper end and the rear part of the upper end of the shell, a vertical partition plate is inserted between the two positioning grooves adjacent to each other in front and back, the upper end face of the vertical partition plate is flush with the upper end face of the shell, a plurality of transverse partition plates are arranged at the upper end of the shell and the upper end of the vertical partition plate, the vertical partition plates and the transverse partition plates are mutually perpendicular, and the electronic components are positioned between the vertical partition plates and the transverse partition plates. According to the utility model, the vertical partition plate and the transverse partition plate are arranged to divide the upper end bonding pad surface of the PCB into a plurality of independent spaces, so that the probability of temperature difference of the PCB caused by welding heating is reduced, and the assembly quality of the plug-in components of the circuit board is ensured.

Description

Novel PCBA structure

Technical Field

The utility model relates to the technical field of semiconductor manufacturing processes, in particular to a novel PCBA structure.

Background

PCBA refers to circuit board plug-in assembly, which is completed by combining an SMT processing procedure and a DIP processing procedure. The PCBA often generates larger temperature difference in the welding and heating process, and poor welding, such as opening welding and rope suction of QFP pins, can be caused once the temperature difference exceeds the standard; tablet setting and displacement of the chip components; shrinkage cracking of BGA pads, etc.

The existing PCBA structure solves the heat dissipation problem in the PCBA welding heating process by changing the heat capacity, for example, the heat dissipation holes are connected with the inner-layer grounding layer, if the grounding layer is less than 6 layers, the local part can be isolated from the signal layer to serve as the heat dissipation layer, and meanwhile, the aperture is reduced to the minimum available aperture size. However, the mode of changing the heat capacity can only be designed and added when the PCB is produced, and special design is required according to the actual situation of the PCB, so that the design cost and the manufacturing cost are increased, and the popularization and the application are not facilitated.

Disclosure of Invention

The utility model mainly aims to provide a novel PCBA structure which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a novel PCBA structure, includes the PCB board, a plurality of electronic components is installed to the PCB board upper end, the collar has been cup jointed in PCB board surface activity, the shell is installed to the collar upper end, a plurality of constant head tank has all been opened at shell upper end front portion and upper end rear portion, has pegged graft jointly between two adjacent constant head tanks around, vertical baffle up end flushes with the shell up end, shell upper end and vertical baffle upper end are provided with a plurality of transverse baffle jointly, vertical baffle and transverse baffle are mutually perpendicular setting, electronic components is located between vertical baffle and the transverse baffle.

Preferably, the vertical partition plate comprises a vertical plate, extension plates are arranged on the upper portion of the front end of the vertical plate and the upper portion of the rear end of the vertical plate, the extension plates are matched with the positioning grooves, a first insulating rubber strip is arranged at the lower end of the vertical plate, and the outer surface of the first insulating rubber strip is in contact with the upper end face of the PCB.

Preferably, the transverse partition plate comprises a transverse plate, a second insulating rubber strip is arranged at the lower end of the transverse plate, the outer surface of the second insulating rubber strip is in contact with the upper end face of the PCB, a plurality of openings are formed in the front end of the transverse plate, the openings are matched with the vertical plates, the number of the openings is consistent with that of the vertical plates, hooked plates are arranged at the left end and the right end of the transverse plate, the hooked plates are of L-shaped structures, and the hooked plates are matched with the side walls of the shell.

Preferably, the size of the inner cavity of the mounting ring is matched with the size of the PCB.

Preferably, the cross section of the first insulating rubber strip is in a semicircular structure.

Preferably, the structure of the second insulating rubber strip is the same as that of the first insulating rubber strip.

Compared with the prior art, the utility model has the following beneficial effects:

1. the vertical partition plates and the transverse partition plates are arranged to divide the upper end bonding pad surface of the PCB into a plurality of independent spaces, the number of the vertical partition plates and the positions of the transverse partition plates are adjusted according to the welding positions of the electronic components, so that the electronic components to be welded are just positioned in the independent spaces, the probability of temperature difference of the PCB caused by welding heating is reduced during welding, meanwhile, the vertical partition plates and the transverse partition plates are made of metal heat dissipation materials, rapid heat dissipation is facilitated, the probability of occurrence of local overhigh temperature on the PCB is further reduced, and the assembly quality of the plug-in units of the circuit board is guaranteed;

2. through setting up first insulating rubber strip and second insulating rubber strip and being used for contacting the PCB board, avoid the face of vertical baffle and horizontal baffle fish tail PCB board, simultaneously, rubber material is softer, can produce the deformation of certain degree, is convenient for improve the degree of closure between vertical baffle, horizontal baffle and the PCB board, reduces the profile that heat transfer arrives other regions when electronic components welds.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the housing;

FIG. 3 is a schematic perspective view of a vertical separator;

fig. 4 is a schematic perspective view of a transverse partition.

In the figure: 1. a PCB board; 2. an electronic component; 3. a mounting ring; 4. a housing; 5. a positioning groove; 6. a vertical partition; 7. a transverse partition; 61. a riser; 62. an extension plate; 63. a first insulating rubber strip; 71. a cross plate; 72. a second insulating rubber strip; 73. an opening; 74. a hooked plate.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, a novel PCBA structure, including PCB board 1, as a concrete implementation, PCB board 1 in this embodiment be rectangular structure, a plurality of electronic components 2 are installed to PCB board 1 upper end, and quantity and weight of electronic components 2 decide according to actual demand, the installation ring 3 has been cup jointed in the activity of PCB board 1 surface, and after electronic components 2 welding was accomplished, installation ring 3 needs to take off, and the next PCB board 1 of being convenient for uses, shell 4 is installed to installation ring 3 upper end, shell 4 upper end front portion and upper end rear portion all open a plurality of constant head tank 5, as a concrete implementation, constant head tank 5 in this embodiment be provided with two sets of, every group is provided with four, peg graft jointly between two constant head tanks 5 and have vertical baffle 6, vertical baffle 6 up end and shell 4 up end, shell 4 up end and vertical baffle 6 upper end are provided with a plurality of horizontal baffle 7 jointly, as a concrete implementation, this embodiment 7 is the horizontal baffle 7 and is located horizontal baffle 7 each other between the vertical baffle 6.

Further, the vertical partition 6 includes a riser 61, as a specific embodiment, the riser 61 in this embodiment is made of a metal heat dissipation material, and the surface is provided with concave-convex grains, so as to increase the surface area, an extension plate 62 is installed on the upper portion of the front end and the upper portion of the rear end of the riser 61, the extension plate 62 is matched with the positioning slot 5, the extension plate 62 is just clamped in the positioning slot 5, a first insulating rubber strip 63 is installed at the lower end of the riser 61, and the outer surface of the first insulating rubber strip 63 contacts with the upper end surface of the PCB board 1.

Further, the transverse partition 7 includes a transverse plate 71, the transverse plate 71 is made of the same material as the vertical plate 61, a second insulating rubber strip 72 is installed at the lower end of the transverse plate 71, the outer surface of the second insulating rubber strip 72 contacts with the upper end surface of the PCB board 1, a plurality of openings 73 are opened at the front end of the transverse plate 71, as a specific embodiment, four openings 73 are provided in this embodiment, the openings 73 are matched with the vertical plate 61, the number of the openings 73 is the same as that of the vertical plate 61, hooked plates 74 are installed at the left end and the right end of the transverse plate 71, the hooked plates 74 are in an L-shaped structure, the hooked plates 74 are matched with the side wall of the casing 4, and the transverse plate 71 can be displaced in the front-back direction.

Further, the size of the inner cavity of the mounting ring 3 is matched with the size of the PCB 1.

Further, the first insulating rubber strips 63 have a semicircular cross section.

Further, the second insulating rubber strips 72 have the same structure as the first insulating rubber strips 63.

It should be noted that, the utility model is a novel PCBA structure, the upper end pad surface of the PCB 1 is divided into a plurality of independent spaces by arranging the vertical partition plates 6 and the transverse partition plates 7, the number of the vertical partition plates 6 and the positions of the transverse partition plates 7 are adjusted according to the welding positions of the electronic components 2, so that the electronic components 2 to be welded are just positioned in the independent spaces, when in welding, the probability of temperature difference generated by the PCB 1 due to welding heating is reduced, meanwhile, the vertical partition plates 6 and the transverse partition plates 7 are both made of metal heat dissipation materials, thereby facilitating rapid heat dissipation, further reducing the probability of occurrence of local overhigh temperature conditions on the PCB 1, and guaranteeing the assembly quality of the plug-in components of the circuit board; through setting up first insulating rubber strip 63 and second insulating rubber strip 72 and being used for contacting PCB board 1, avoid vertical baffle 6 and horizontal baffle 7 fish tail PCB board 1's face, simultaneously, the rubber material is softer, can produce the deformation of certain degree, is convenient for improve the degree of closure between vertical baffle 6, horizontal baffle 7 and the PCB board 1, reduces the profile that heat transfer arrives other regions when electronic components 2 welds.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Novel PCBA structure, including PCB board (1), its characterized in that: a plurality of electronic components (2) are installed to PCB board (1) upper end, PCB board (1) surface activity has cup jointed collar (3), shell (4) are installed to collar (3) upper end, a plurality of constant head tank (5) are all opened at shell (4) upper end front portion and upper end rear portion, peg graft jointly between two constant head tanks (5) that are adjacent around have vertical baffle (6), vertical baffle (6) up end flushes with shell (4) up end, shell (4) upper end and vertical baffle (6) upper end are provided with a plurality of transverse baffle (7) jointly, vertical baffle (6) and transverse baffle (7) are mutually perpendicular setting, electronic components (2) are located between vertical baffle (6) and transverse baffle (7).

2. A novel PCBA structure as claimed in claim 1, wherein: the vertical partition plate (6) comprises a vertical plate (61), extension plates (62) are arranged on the upper portion of the front end and the upper portion of the rear end of the vertical plate (61), the extension plates (62) are matched with the positioning grooves (5), a first insulating rubber strip (63) is arranged at the lower end of the vertical plate (61), and the outer surface of the first insulating rubber strip (63) is in contact with the upper end face of the PCB (1).

3. A novel PCBA structure as claimed in claim 2, wherein: the transverse partition plate (7) comprises a transverse plate (71), a second insulating rubber strip (72) is arranged at the lower end of the transverse plate (71), the outer surface of the second insulating rubber strip (72) is in contact with the upper end face of the PCB (1), a plurality of openings (73) are formed in the front end of the transverse plate (71), the openings (73) are matched with the vertical plates (61), the number of the openings (73) is consistent with that of the vertical plates (61), hooked plates (74) are arranged at the left end and the right end of the transverse plate (71), the hooked plates (74) are of L-shaped structures, and the hooked plates (74) are matched with the side walls of the shell (4).

4. A novel PCBA structure according to claim 3, characterized in that: the size of the inner cavity of the mounting ring (3) is matched with the size of the PCB (1).

5. The novel PCBA structure as defined in claim 4, wherein: the section of the first insulating rubber strip (63) is of a semicircular structure.

6. The novel PCBA structure according to claim 5, wherein: the second insulating rubber strip (72) has the same structure as the first insulating rubber strip (63).