CN217825519U

CN217825519U - Printed circuit board splicing structure and printed circuit board splicing clamp assembly

Info

Publication number: CN217825519U
Application number: CN202221332063.3U
Authority: CN
Inventors: 古兆强
Original assignee: Fibocom Wireless Inc
Current assignee: Fibocom Wireless Inc
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-15
Anticipated expiration: 2032-05-30

Abstract

The application relates to a printed circuit board makeup structure and printed circuit board makeup anchor clamps subassembly, wherein, printed circuit board makeup structure includes: the frame is provided with a matching part; the printed circuit boards are at least more than three, the printed circuit boards are positioned in the frame and positioned on the same plane, and the first connecting ribs are connected between the frame and the printed circuit boards; and a middle connection plate connected between the plurality of printed circuit boards. The technical scheme of the application has solved the problem that warpage deformation appears easily in the processing procedure of printed circuit board makeup structure among the prior art effectively.

Description

Printed circuit board splicing structure and printed circuit board splicing clamp assembly

Technical Field

The application relates to the technical field of circuit boards, in particular to a printed circuit board splicing structure and a printed circuit board splicing clamp assembly.

Background

Printed Circuit Board (PCB) a necessary electronic circuit board used in many electronic products is formed by Surface Mount Technology (SMT) mounting on a Printed Circuit Board (PCB) to form a Printed Circuit Board Assembly (PCBA).

The printed circuit board generally can carry out the makeup operation, and polylith printed circuit board passes through the frame concatenation and is in the same place, and its purpose is in order to improve the production efficiency that SMT produced the line, improves the speed of printing tin cream.

In an M2M (module to module) module (LCC package) in the prior art, due to the limitation of the stamp hole at the edge of the LCC (Leadless module carrier), the space available for the connecting rib is not large. The board splicing mode in the prior art can often cause the flatness problem of the printed circuit board splicing structure of the whole board, and thus the poor welding of modules can be easily caused during secondary SMT after board splitting.

SUMMERY OF THE UTILITY MODEL

The application provides a printed circuit board makeup structure and printed circuit board makeup anchor clamps subassembly to solve the problem that warpage deformation appears easily in printed circuit board makeup structure among the prior art in the course of working.

In order to solve the above problems, the present application provides a printed circuit board jointed board structure, comprising: the frame is provided with a matching part; the printed circuit boards are at least more than three, the printed circuit boards are positioned in the frame and positioned on the same plane, and the first connecting ribs are connected between the frame and the printed circuit boards; and a middle connection plate connected between the plurality of printed circuit boards.

Further, the frame includes four sideboard, and four sideboard end to end enclose and establish into the inner space for the rectangle, and first splice bar includes a plurality of L type splice bars, and the outside limit of each L type splice bar links to each other with the inboard side at four angles of frame, and the inboard side of each L type splice bar links to each other with two sides of printed circuit board.

Further, the first connecting ribs comprise T-shaped connecting ribs, and the T-shaped connecting ribs are respectively connected with the two printed circuit boards and the side plate.

Further, first splice bar still includes the intermediate junction muscle, and the intermediate junction muscle sets up between L type splice bar and T type splice bar, and the intermediate junction muscle links to each other with the inside wall of frame and printed circuit board's lateral wall.

Furthermore, the jointed board structure of the printed circuit boards also comprises second connecting ribs, and the second connecting ribs are connected between the adjacent printed circuit boards.

Furthermore, the middle connecting plate comprises a cross-shaped connecting island, and the inner side edges of four right angles of the cross-shaped connecting island are respectively connected with the two side edges of the right angle of the corresponding printed circuit board.

According to another aspect of the present application, there is also provided a printed circuit board tile jig assembly comprising: the printed circuit board jointed board structure is the printed circuit board jointed board structure; the clamp comprises a mounting seat and an elastic clamp main body, the elastic clamp main body is movably mounted on the mounting seat, and the elastic clamp main body is matched with the matching part of the frame to apply stretching acting force to the frame.

Further, the elastic fixture main body comprises a spring and a pulling plate, the spring comprises a first elastic arm, a second elastic arm and a connecting portion, the connecting portion is connected with the pulling plate, the first elastic arm and the second elastic arm are connected with the connecting portion in a V-shaped mode, the first end of the first elastic arm and the first end of the second elastic arm are connected with the connecting portion, the second end of the first elastic arm and the second end of the second elastic arm are abutted to the mounting seat, and the pulling plate can translate on the mounting seat.

Furthermore, the mounting seat is provided with a cross-shaped groove, the cross-shaped groove comprises a first groove and a second groove, the first groove extends along the first direction, the second groove extends along the second direction, the first direction is perpendicular to the second direction, the pulling plate is arranged in the first groove, the length of the first groove is larger than that of the pulling plate, and the second end of the first elastic arm and the second end of the second elastic arm abut against the inner wall of the second groove on the side close to the printed circuit board.

Further, the elastic clamp main bodies comprise a plurality of elastic clamp main bodies which are distributed on the circumferential outer side of the frame.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

according to the technical scheme, the more than three printed circuit boards are connected with the frame through the first connecting ribs, and the adjacent positions of the printed circuit boards are connected through the middle connecting plate. Therefore, the edge of the single printed circuit board is connected with the frame, and the warping deformation of the printed circuit board is well limited by the constraint of the frame. And keep away from the position of frame at printed circuit board, a plurality of printed circuit board's intersection is the farthest away from the frame promptly, and its moment of torsion is great, takes place warp deformation relatively easily, and a plurality of printed circuit board's intersection is tied up through the middle part connecting plate, and the position that has once more fine restriction a plurality of printed circuit board's intersection like this takes place warp deformation. First splice bar and middle part connecting plate cooperate each other can be fine prevent that printed circuit board assembles the deformation of structure. The technical scheme of the application has solved the problem that warpage deformation appears easily in the processing procedure of printed circuit board makeup structure among the prior art effectively.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

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

FIG. 1 is a schematic structural view of a printed circuit board panel structure of the present application;

fig. 2 shows a schematic structural view of a printed circuit board tile jig assembly of the present application.

Wherein the figures include the following reference numerals:

10. a frame; 11. a fitting portion; 20. a printed circuit board; 30. a first connecting rib; 31. l-shaped connecting ribs; 32. t-shaped connecting ribs; 33. the middle is connected with the rib; 40. a middle connecting plate; 50. a second connecting rib; 60. a clamp structure; 61. a mounting base; 62. an elastic clamp; 621. a spring; 622. and (5) pulling the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

As shown in fig. 1, the printed circuit board panel structure of the present embodiment includes: the frame 10, the printed circuit board 20, the first connection rib 30, and the middle connection plate 40. The frame 10 is provided with a fitting portion 11. The number of the printed circuit boards 20 is at least three or more, the printed circuit boards 20 are located in the frame 10, and the printed circuit boards 20 are located on the same plane. The first connection rib 30 is connected between the bezel 10 and the printed circuit board 20. The middle connection plate 40 is connected between the plurality of printed circuit boards 20.

In the technical solution of this embodiment, more than three printed circuit boards 20 are connected to the frame 10 through the first connecting rib 30, and the adjacent positions of the printed circuit boards 20 are connected through the middle connecting plate 40. Thus, for the individual printed circuit board 20, the edge thereof is connected to the frame 10, so that the printed circuit board 20 is restrained well from warping and deforming by the constraint of the frame 10. And keep away from the position of frame at printed circuit board 20, a plurality of printed circuit board 20's intersection is the farthest away from the frame promptly, and its moment of torsion is great, takes place warpage deformation relatively easily, and a plurality of printed circuit board 20's intersection is tied up through middle part connecting plate 40, and the position that has restricted intersection of a plurality of printed circuit board 20 like this again is fine takes place warpage deformation. The first connecting ribs 30 and the middle connecting plate 40 are matched with each other to prevent the deformation of the printed circuit board assembling structure. The technical scheme of this embodiment has solved the problem that the printed circuit board makeup structure among the prior art appears warpage in the course of working easily effectively.

As shown in fig. 1, in the technical solution of this embodiment, the frame 10 includes four side plates, the four side plates are connected end to enclose an internal space as a rectangle, the first connecting rib 30 includes a plurality of L-shaped connecting ribs 31, an outer side of each L-shaped connecting rib 31 is connected to inner sides of four corners of the frame 10, and inner sides of each L-shaped connecting rib 31 are connected to two sides of the printed circuit board 20. The printed circuit board is fixedly connected in the long direction (or similar to a rectangle) at the corner of the printed circuit board through the L-shaped connecting rib 31, the connecting position has a good effect of preventing the jointed board structure of the printed circuit board from deforming, and one L-shaped connecting rib 31 can limit two sides of the printed circuit board 20 at the same time. The thickness of the L-shaped connection rib 31 is the same as the thickness of the printed circuit board 20. Specifically, the number of the L-shaped connecting ribs 31 is four, each L-shaped connecting rib 31 connects two side plates and one printed circuit board 20, and the inner side edge of each L-shaped connecting rib 31 may be an arc or a polygon, which is determined according to the corner of the printed circuit board 20.

As shown in fig. 1, in the solution of the present embodiment, the first connecting rib 30 includes a T-shaped connecting rib 32, and the T-shaped connecting rib 32 connects the two printed circuit boards 20 and one edge board, respectively. The corners of the printed circuit board 20 except for the farthest end are fixed by the L-shaped connection ribs 31 and the T-shaped connection ribs 32. The structure is compact, and the two printed circuit boards 20 can be fixed with the frame by arranging the T-shaped connecting rib 32. The first connecting ribs 30 are plate-shaped, the thickness of the plate is the same as that of the frame 10, and the L-shaped connecting ribs 31 and the T-shaped connecting ribs 32 are integrated with the frame 10.

As shown in fig. 1, in the solution of the present embodiment, the first connecting rib 30 further includes an intermediate connecting rib 33, the intermediate connecting rib 33 is disposed between the L-shaped connecting rib 31 and the T-shaped connecting rib 32, and the intermediate connecting rib 33 is connected to the inner side wall of the frame 10 and the outer side wall of the printed circuit board 20. The intermediate bonding ribs 33 are well positioned to bind the position of the printed circuit board 20 between the L-shaped bonding ribs 31 and the T-shaped bonding ribs 32.

As shown in fig. 1, in the present embodiment, the pcb panel structure further includes a second connecting rib 50, and the second connecting rib 50 is connected between adjacent pcbs 20. The provision of the second connection rib 50 also allows the intermediate position of the printed circuit board 20 to be well defined, which further prevents the printed circuit board 20 from being deformed.

As shown in fig. 1, in the technical solution of this embodiment, the middle connection board 40 is a cross-shaped connection island, and the inner side edges of four right angles of the cross-shaped connection island are respectively connected to two right-angled side edges of the corresponding printed circuit board 20. So that the four corners of the printed circuit board 20 are fixed. In the embodiment, four printed circuit boards 20 are disposed in the same frame 10, and besides four boards, six boards or eight boards can be implemented, depending on the area of the single PCB module. The thickness of the tile may be 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, etc., as desired.

In summary, the flatness of the jointed printed circuit board is achieved by the cooperation of the L-shaped connecting rib 31, the T-shaped connecting rib 32, the middle connecting rib 33, the second connecting rib 50 and the middle connecting plate 40. The structure of the jointed board of the printed circuit board can realize the jointing of more than 3 printed circuit boards 20, fully utilizes the space and well limits the flatness of the jointed board of the printed circuit board. If one frame 10 is only fixed with one or two printed circuit boards 20, flatness control can be easily realized, and the probability of warping and deformation of the printed circuit board splicing plates is greatly reduced by changing the structure of more than three printed circuit board splicing plates.

As shown in fig. 2, the present application further provides a printed circuit board assembly jig assembly comprising: a printed circuit board panel structure and a clamp structure 60. The printed circuit board jointed board structure is the above-mentioned printed circuit board jointed board structure. The clamp structure 60 includes a mounting seat 61 and an elastic clamp 62, the elastic clamp 62 is movably mounted on the mounting seat 61, and the elastic clamp 62 cooperates with the cooperating portion 11 of the frame 10 to apply a tensile force to the frame 10. The elastic clamp 62 can stretch the jointed board structure of the printed circuit board, and the jointed board structure of the printed circuit board is prevented from deforming. Specifically, frame 10 is rectangular shape frame that returns, and cooperation portion 11 is the through-hole that sets up in four bights of frame 10, and arm-tie 622 includes the arm-tie body and sets up the stand on the arm-tie body, and the stand setting is on the surface of one side that deviates from mount pad 61 of the one end of being close to printed circuit board 20 of arm-tie main part.

When the clamping device is used, the two through holes on the same side of the jointed board of the printed circuit board are correspondingly penetrated into the pull columns, and then the elastic clamps 62 on the other two sides are pulled by external force, so that the elastic clamps 62 on the other two sides are close to the frame 10, and the pull columns penetrate through the through holes on the side. The four elastic clamps 62 are used for continuously maintaining the tension of the jointed boards of the printed circuit board to the outside by stretching the four through holes under the action of the elastic force. And four through holes are arranged at the positions of four corners, so that the acting force applied to the jointed boards of the printed circuit board is applied to a larger area.

As shown in fig. 2, in the printed circuit board assembly jig assembly of the present application, the elastic jig 62 includes a spring 621 and a pulling plate 622, the spring 621 includes a first elastic arm, a second elastic arm and a connecting portion, the connecting portion is connected to the pulling plate 622, the first elastic arm and the second elastic arm are connected to the connecting portion in a V-shape, a first end of the first elastic arm and a first end of the second elastic arm are both connected to the connecting portion, a second end of the first elastic arm and a second end of the second elastic arm are both abutted to the mounting seat 61, and the pulling plate 622 can move on the mounting seat 61 in a translation manner. The spring 621 adopts a V-shaped connection mode between the first elastic arm and the connecting portion, so that the spring 621 is stressed stably and uniformly when the pulling plate 622 stretches the frame 10.

It should be noted that the first elastic arm, the second elastic arm and the connecting portion are integrally formed, and the first elastic arm, the second elastic arm and the connecting portion are extended and then bent by an elastic wire, and then the second elastic arm is extended toward a direction symmetrical to the first elastic arm, and the connecting portion is annular. Still be provided with the fixed column in the arm-tie main part, the fixed column is located the side that deviates from mount pad 61 of one side of keeping away from frame 10 of arm-tie main part, and the fixed column is located the same one side of arm-tie main part with the arm-tie promptly, and this annular connecting portion cooperatees with the fixed column. When the clamp structure 60 is in a non-operating state, the pulling plate 622 is under the elastic force of the spring 621, the pulling plate 622 is located on a side of the first recess away from the frame 10, and when the clamp structure is in operation, the pulling plate 622 moves a certain distance to a position close to the frame 10.

As shown in fig. 2, in the technical solution of this embodiment, the mounting seat 61 has a cross-shaped groove, the cross-shaped groove includes a first groove and a second groove, the first groove extends along a first direction, the second groove extends along a second direction, the first direction is perpendicular to the second direction, the pulling plate 622 is disposed in the first groove, the length of the first groove is greater than the length of the pulling plate 622, and the second end of the first elastic arm and the second end of the second elastic arm respectively abut against the inner wall of the second groove on the side close to the printed circuit board 20. The structure is compact and the operation is convenient.

The mounting base 61 has a plate-shaped structure having a plurality of hollow holes. The side of the mounting seat 61 facing the printed circuit board 20 is a flat surface. The arm-tie main part is the multistage plate body, each plate body forms the step, first recess is provided with the fitting surface with arm-tie main part matched with one side, the fitting surface also forms a plurality of step faces according to a plurality of steps of arm-tie main part, can form spacing on a plurality of planes to the arm-tie main part like this, foretell step face can not be spacing to the translation formation of arm-tie main part, it is spacing to form between the lateral wall of the both sides of first recess and the arm-tie main part, it is higher to make arm-tie 622's removal precision through setting up of above-mentioned structure.

As shown in fig. 2, in the solution of the present embodiment, the elastic clamp 62 includes a plurality of elastic clamps 62, and the plurality of elastic clamps 62 are distributed on the circumferential outer side of the frame 10. Above-mentioned structure has guaranteed that the atress of printed circuit board makeup is more even, and each position of printed circuit board makeup all is bearing the pulling force moreover, fine restriction printed circuit board makeup takes place deformation.

It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A printed circuit board panel structure, comprising:

the frame (10), the frame (10) is provided with a matching part (11);

the printed circuit board (20), the printed circuit board (20) is a plurality of at least three, the printed circuit boards (20) are located in the frame (10), and the printed circuit boards (20) are located on the same plane;

a first connection rib (30), the first connection rib (30) being connected between the frame (10) and the printed circuit board (20);

a middle connection plate (40), the middle connection plate (40) being connected between the plurality of printed circuit boards (20).

2. The structure of a printed circuit board assembly according to claim 1, wherein the frame (10) comprises four side plates, the four side plates are connected end to define a rectangular inner space, the first connecting rib (30) comprises a plurality of L-shaped connecting ribs (31), an outer side of each L-shaped connecting rib (31) is connected to inner sides of four corners of the frame (10), and an inner side of each L-shaped connecting rib (31) is connected to two sides of the printed circuit board (20).

3. A printed circuit board panel structure according to claim 2, wherein the first connecting rib (30) comprises a T-shaped connecting rib (32), and the T-shaped connecting rib (32) connects the two printed circuit boards (20) and one of the side boards, respectively.

4. -board arrangement according to claim 3, characterized in that said first connecting rib (30) further comprises an intermediate connecting rib (33), said intermediate connecting rib (33) being arranged between said L-shaped connecting rib (31) and said T-shaped connecting rib (32), said intermediate connecting rib (33) being connected to the inner side wall of said frame (10) and to the outer side wall of said printed circuit board (20).

5. The printed circuit board panel structure according to claim 1, further comprising a second connecting rib (50), wherein the second connecting rib (50) is connected between adjacent printed circuit boards (20).

6. -panel structure according to any of the claims 1 to 5, characterized in that said central connection plate (40) is a cross-shaped connection island, the four right-angled inner edges of which are connected to the corresponding right-angled two sides of said printed circuit board (20).

7. A printed circuit board tile jig assembly, comprising:

a printed circuit board panel structure, which is the printed circuit board panel structure of any one of claims 1 to 6;

the clamp structure (60) comprises a mounting seat (61) and an elastic clamp (62), the elastic clamp (62) is movably mounted on the mounting seat (61), and the elastic clamp (62) is matched with a matching part of the frame (10) to exert stretching acting force on the frame (10).

8. The PCB tile clamp assembly of claim 7, wherein the resilient clamp (62) comprises a spring (621) and a pulling plate (622), the spring (621) comprises a first resilient arm, a second resilient arm and a connecting portion, the connecting portion is connected to the pulling plate (622), the first resilient arm and the second resilient arm are connected to the connecting portion in a V-shape, a first end of the first resilient arm and a first end of the second resilient arm are both connected to the connecting portion, a second end of the first resilient arm and a second end of the second resilient arm are both abutted to the mounting base (61), and the pulling plate (622) is translatable on the mounting base (61).

9. The PCB tile clamp assembly of claim 8, wherein the mounting seat (61) has a cross-shaped groove, the cross-shaped groove comprises a first groove and a second groove, the first groove extends along a first direction, the second groove extends along a second direction, the first direction is perpendicular to the second direction, the pulling plate (622) is arranged in the first groove, the length of the first groove is greater than that of the pulling plate (622), and the second ends of the first elastic arm and the second elastic arm respectively abut against the inner wall of the second groove on one side close to the PCB (20).

10. The printed circuit board tile clamp assembly according to claim 7, wherein the resilient clamp (62) comprises a plurality of resilient clamps (62) distributed over a circumferential outer side of the rim (10).