CN-224233911-U - Pre-lamination plate structure before lamination of circuit board

CN224233911UCN 224233911 UCN224233911 UCN 224233911UCN-224233911-U

Abstract

The utility model discloses a pre-lamination plate structure before lamination of a circuit board, which comprises a circuit core plate, wherein a limiting assembly is arranged at the edge of the circuit core plate, an assembly is arranged in the limiting assembly, and the first limiting right angle bar, the second limiting right angle bar, the third limiting right angle bar and the fourth limiting right angle bar are assembled to form a frame structure with required size respectively, four corners of a conductive copper foil, an insulating core plate and the circuit core plate in the stacking process are subjected to limiting alignment, and the first fixing screw and the second fixing screw are unscrewed respectively, so that the distance between the first limiting right angle bar and the second limiting right angle bar and the distance between the third limiting right angle bar and the fourth limiting right angle bar are adjusted, and the distance between the first limiting right angle bar and the fourth limiting right angle bar and the distance between the second limiting right angle bar and the third limiting right angle bar are adjusted, so that the application range of the limiting assembly is improved.

Inventors

Ou Yewu
WANG NANCHUAN
Ou Ermei
Lu Caiyin
SHEN FEI
LIU YONG

Assignees

重庆深新捷电子科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250526

Claims (6)

1. The pre-lamination plate structure before lamination of the circuit board comprises a conductive copper foil (1), an insulating core plate (2) and a circuit core plate (3), and is characterized in that the insulating core plate (2) is symmetrically stacked on the upper end face and the lower end face of the circuit core plate (3), the conductive copper foil (1) is stacked on the outer surface of the insulating core plate (2), a limiting component is arranged at the edge of the circuit core plate (3), the limiting component is used for limiting the conductive copper foil (1), the insulating core plate (2) and the circuit core plate (3) in the stacking process, an assembly component is arranged inside the limiting component, and the assembly component is used for adjusting the size of the limiting component.
2. The pre-lamination plate structure before lamination of the circuit board according to claim 1, wherein the limiting assembly comprises an heightening right angle piece (41), a first limiting right angle bar (42), a second limiting right angle bar (43), a third limiting right angle bar (44) and a fourth limiting right angle bar (45), the first limiting right angle bar (42) is attached to the rear end of the circuit core plate (3), the second limiting right angle bar (43) is placed on the left side of the first limiting right angle bar (42), the third limiting right angle bar (44) is placed on the front side of the second limiting right angle bar (43), the fourth limiting right angle bar (45) is placed on the right side of the third limiting right angle bar (44), and the heightening right angle piece (41) is arranged at the upper end faces of the first limiting right angle bar (42), the second limiting right angle bar (43), the third limiting right angle bar (44) and the fourth limiting right angle bar (45).
3. The pre-lamination plate structure before lamination of a circuit board according to claim 2, wherein the assembly component comprises a first assembly bar (52) and a first inserting cavity (55), the rear end faces of the third limit right-angle bar (44) and the fourth limit right-angle bar (45) are respectively connected with the first assembly bar (52), the front end faces of the first limit right-angle bar (42) and the second limit right-angle bar (43) are respectively provided with the first inserting cavity (55), the first inserting cavity (55) is matched with the first assembly bar (52), and the upper end face of the first assembly bar (52) is provided with a first digital scale mark (521).
4. The pre-lamination plate structure before lamination of the circuit board according to claim 2, wherein the right end faces of the second limiting right angle bar (43) and the third limiting right angle bar (44) are connected with a second splicing bar (53), the left end faces of the first limiting right angle bar (42) and the fourth limiting right angle bar (45) are provided with a second inserting cavity (56), the second inserting cavity (56) is matched with the second splicing bar (53), and the upper end face of the second splicing bar (53) is provided with a second digital scale mark (531).
5. The pre-lamination structure before lamination of circuit boards according to claim 3, wherein the first internal thread through holes (57) are formed in the front sides of the upper end faces of the first limiting right-angle bar (42) and the second limiting right-angle bar (43), the first internal thread through holes (57) are communicated with the first inserting cavity (55), and first fixing screws (51) are installed in the internal threads of the first internal thread through holes (57).
6. The pre-lamination structure before lamination of circuit boards according to claim 4, wherein the left sides of the upper end surfaces of the first limiting right angle bar (42) and the fourth limiting right angle bar (45) are respectively provided with a second internal thread through hole (58), the second internal thread through holes (58) are communicated with the second inserting cavity (56), and second fixing screws (54) are arranged in the second internal thread through holes (58) in a threaded mode.

Description

Pre-lamination plate structure before lamination of circuit board Technical Field The utility model relates to the technical field of circuit board pre-lamination, in particular to a pre-lamination structure before circuit board lamination. Background The circuit board is required to physically stack the conductive layers (copper foils), insulating layers (such as FR-4 core boards, prepregs and the like) and other auxiliary materials of the multi-layer PCB according to design requirements before lamination, and has the core effects of ensuring that key indexes such as electrical performance, mechanical stability and impedance control of the circuit board after lamination accord with expectations through accurate material arrangement and layer sequence planning, and limiting the stacked conductive layers, insulating layers and auxiliary layers by using corresponding pre-lamination structures in the process of physically stacking the conductive layers, insulating layers and auxiliary layers of the multi-layer PCB, so that dislocation of the conductive layers, the insulating layers and the auxiliary layers in the stacking process is avoided. Among the prior art, the preplate structure before the circuit board pressfitting of bulletin number "CN216752288U", through setting up heat dissipation groove and calibration work piece, when carrying out the prestack, use the calibration work piece, insert the heat dissipation groove with movable part, rotate the movable part and drive movable part and carry out the displacement, when the movable part rotates and forms the right angle with the base, the movable part shifts out the heat dissipation groove, a plurality of calibration work pieces make the preplate align, take out the calibration work piece after the alignment, be convenient for align the preplate. However, the following drawbacks exist in the above technical solutions and the prior art: This structure is even can align the pre-lamination board of stacking the in-process with the help of the calibration work piece, but the calibration work piece in this structure is in the calibration process, need rotate rotation portion, then just can make the pivot loop through worm, turbine, connecting axle, gear, transmission drive and lead screw drive movable part and carry out the displacement and form the right angle and just can align the operation, and still need rotate the adjustment to four calibration work pieces respectively and just can align the four sides of stacked structure, and this kind of alignment step is loaded down with trivial details, the alignment convenience is not good enough, thereby influence circuit board stacking efficiency, wait to improve further in the aspect of the practicality. Disclosure of utility model The utility model aims to provide a pre-lamination plate structure before lamination of a circuit board so as to solve the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a pre-lamination board structure before circuit board pressfitting, includes conductive copper foil, insulating core board and circuit core board, insulating core board has been piled up to terminal surface symmetry about the circuit core board, insulating core board surface piles up there is conductive copper foil, circuit core board edge is provided with spacing subassembly, and spacing subassembly is used for spacing conductive copper foil, insulating core board and the circuit core board of stacking the in-process, spacing subassembly inside is provided with assembles the subassembly, and assembles the subassembly and be used for carrying out the size adjustment to spacing subassembly. Preferably, the spacing subassembly is including increasing the spacing right angle piece, first spacing right angle strip, the spacing right angle strip of second, third and the spacing right angle strip of fourth, the laminating of circuit core rear end has first spacing right angle strip, the spacing right angle strip of second has been placed in first spacing right angle strip left side, the spacing right angle strip of third has been placed in the spacing right angle strip front side of second, the spacing right angle strip of fourth has been placed on the spacing right angle strip of third, the spacing right angle strip of first spacing right angle strip, the spacing right angle strip of second, the spacing right angle strip of third and the spacing right angle strip up end corner of fourth all is provided with increases the right angle piece. Preferably, the assembly comprises a first assembly bar and a first plug-in cavity, the rear end faces of the third limit right-angle bar and the fourth limit right-angle bar are both connected with the first assembly bar, the front end faces of the first limit right-angle bar and the second limit right-angle bar are both provided with the first plug-in cavity, t