CN210670761U

CN210670761U - Butt joint plate with blind buried holes

Info

Publication number: CN210670761U
Application number: CN201921207766.1U
Authority: CN
Inventors: 阙勋; 胡金安
Original assignee: Zhaoqing Changlong Electronics Co Ltd
Current assignee: Zhaoqing Changlong Electronics Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-06-02
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a butt-joint plate with blind buried via hole, including butt-joint plate and polylith circuit board, wherein be located two circuit boards of outer end and have the blind hole, be located and all seted up the through-hole on a plurality of circuit boards between two circuit boards, a pair of through-hole has been seted up on the butt-joint plate to reference column has in the through-hole, this reference column outer wall, and both ends position all has the structure that clamps about being located, the relative wall of polylith circuit board has the blind hole, the reference column can insert in the blind hole, the utility model relates to a circuit board technical field. The present case provides a butt-joint plate, can realize the installation to the polylith circuit board through the structure of clamping on the butt-joint plate, and this kind of mounting means can realize satisfying present electronic equipment's requirement to the fixing of a plurality of circuit boards.

Description

Butt joint plate with blind buried holes

Technical Field

The utility model relates to a circuit board technical field specifically is a butt-joint plate with blind hole of burying.

Background

The blind holes of the circuit board are of a via hole type which connects the inner layer wires of the PCB with the surface layer wires of the PCB, and the holes do not penetrate through the whole board. And the buried holes are only connected with the via type of the routing wires between the inner layers, so that the buried holes cannot be seen from the surface of the PCB.

With the development of the design of the current portable products towards miniaturization and high density, the design difficulty of the PCB is more and more, and higher requirements are put forward on the production process of the PCB. In most portable products at present, the BGA package with the pitch of less than 0.65mm uses the design process of blind buried holes.

At present, because the size of electronic equipment is smaller and smaller, a plurality of circuit boards are fused into a whole, the circuit boards cannot be bonded through sticky objects, and therefore a fixing structure is needed to fix the circuit boards.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a butt-joint plate with blind hole of burying has solved at present because electronic equipment's volume is more and more little, then leads to the polylith circuit board to be fused as an organic whole, and can not realize the technical problem who bonds through viscidity object between the circuit board.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a butt joint plate with blind buried holes comprises a butt joint plate and a plurality of circuit boards, wherein blind holes are formed in the two circuit boards at the outermost ends, through holes are formed in the circuit boards between the two circuit boards, a pair of through holes are formed in the butt joint plate, positioning columns are arranged in the through holes, clamping structures are arranged on the outer walls of the positioning columns and located at the upper end and the lower end of the positioning columns, blind holes are formed in the opposite wall surfaces of the circuit boards, and the positioning columns can be inserted into the blind holes;

the clamping structure mainly comprises: at least six fixture blocks and spring elements with the same number as the fixture blocks.

Mounting holes with the same number as the number of the fixture block trees are formed in the outer wall of the positioning column and the upper end and the lower end of the positioning column, a plurality of spring parts are assembled in the mounting holes, and the fixture blocks are connected with the spring parts;

the positioning column and the through hole are provided with limiting structures.

Preferably, the upper end face and the lower end face of the positioning column are provided with protective pads; the protection pad is used for preventing the positioning column from damaging the circuit board.

Preferably, the limiting structure mainly comprises: a plurality of limiting rings and a plurality of limiting clamping edges;

wherein the limiting ring is assembled at the contact part of the positioning column and the through hole, and the limiting clamping edge is assembled on the limiting ring.

Preferably, the diameter of the limiting clamping ridge is larger than that of the limiting ring.

Preferably, a plurality of four corners of the circuit board are provided with protective sleeves; the protective sleeve is used for protecting the sleeve.

Advantageous effects

The utility model provides a butt-joint plate with blind buried via hole. Possess following beneficial effect, the present case provides a butt-joint plate, can realize the installation to the polylith circuit board through the structure of clamping on the butt-joint plate, this kind of mounting means can realize fixed to the base member of a plurality of circuit boards, satisfy present electronic equipment's requirement, the effectual background art of having solved mentions at present because electronic equipment's volume is more and more little, then lead to the polylith circuit board to be fused as an organic whole, and can not realize bonding through viscidity object between the circuit board, need a fixed knot to construct for this and carry out the technical problem fixed to the polylith circuit board.

Drawings

Fig. 1 is a schematic structural view of a butt-joint plate with blind buried holes according to the present invention.

Fig. 2 is a schematic view of a split structure of a butt plate with blind buried holes of the present invention.

Fig. 3 is a schematic view of a clamping structure of a butt-joint plate with blind buried holes of the present invention.

Fig. 4 is a schematic structural view of a spacing ring and a spacing clamping edge in a butt-joint plate with blind buried holes of the present invention.

In the figure: 1-a butt plate; 2-a circuit board; 3, blind holes; 4-a through hole; 5-a positioning column; 6-clamping blocks; 7-a spring element; 8-protective pad; 9-a limiting ring; 10-limiting clamping edges.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a butt-joint plate with blind buried holes.

Example (b): the scheme mainly includes: the circuit board assembly comprises a butt joint plate 1 and a plurality of circuit boards 2, wherein blind holes 3 are formed in the two circuit boards 2 positioned at the outermost ends, through holes are formed in the circuit boards 2 positioned between the two circuit boards 2, a pair of through holes 4 are formed in the butt joint plate 1, positioning columns 5 are arranged in the through holes 4, clamping structures are arranged on the outer walls of the positioning columns 5 and positioned at the upper end and the lower end of the positioning columns, the blind holes 3 are formed in the opposite wall surfaces of the circuit boards 2, and the positioning columns 5 can be inserted into the blind holes 3;

it should be noted that, in the above, the positioning columns 5 on the butt-joint plate 1 respectively penetrate through the through holes on the pair of circuit boards 2, and the upper and lower ends of the positioning columns 5 are made to be in the blind holes 3 of the two circuit boards 2 arranged on the outermost sides, and are matched with the blind holes 3 through the clamping structure;

the clamping structure mainly comprises: at least six latch blocks 6 and spring elements 7 with the same number as the latch blocks 6.

Mounting holes with the same number as the number of the spring parts 7 are formed in the outer wall of the positioning column 5 and the upper end and the lower end of the positioning column, the spring parts 7 are assembled in the mounting holes, and the spring parts 7 are connected with the clamping blocks 6;

it should be noted that, because a plurality of fixture blocks 6 are assembled on the positioning column 5 through the spring element 7, after the positioning column 5 enters the blind hole 3, the fixture blocks 6 are embedded in the blind hole 3 due to the elastic force of the spring element 7.

The positions of the positioning columns 5 and the through holes 4 are provided with limiting structures, and the circuit board 2 is fixed through the limiting structures.

The limit structure mainly comprises: a plurality of limiting rings 9 and a plurality of limiting clamping edges 10;

wherein, the limiting ring 9 is assembled at the contact part of the positioning column 5 and the through hole 4, and the limiting clamping edge 10 is assembled on the limiting ring 9.

It should be noted that the limiting ring 9 is disposed at a contact portion between the positioning column 5 and the circuit board through hole 4, and the limiting clamping edge 10 is sleeved to fix the circuit board 2.

In the specific implementation process, furthermore, the upper end face and the lower end face of the positioning column 5 are provided with protective pads 8; the protection pad 8 is used to prevent the positioning post 5 from damaging the circuit board 2.

In the specific implementation process, further, the diameter of the limiting clamping rib 10 is larger than that of the limiting ring 9.

In the specific implementation process, furthermore, a plurality of four corners of the circuit board 2 are provided with protective sleeves; the protective sleeve is used for protecting the sleeve.

It is noted that, herein, relational terms such as first and second, and the like may be 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. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The butt joint plate with the blind buried holes comprises a butt joint plate (1) and a plurality of circuit boards (2), and is characterized in that blind holes (3) are formed in the two circuit boards (2) located at the outermost ends, through holes are formed in the circuit boards (2) located between the two circuit boards (2), a pair of through holes (4) are formed in the butt joint plate (1), positioning columns (5) are arranged in the through holes (4), clamping structures are arranged on the outer walls of the positioning columns (5) and located at the upper end and the lower end of each positioning column, blind holes (3) are formed in the opposite wall surfaces of the circuit boards (2), and the positioning columns (5) can be inserted into the blind holes (3);

the clamping structure mainly comprises: at least six clamping blocks (6) and spring pieces (7) with the same number as the clamping blocks (6);

the outer wall of the positioning column (5) is provided with mounting holes, the number of which is the same as that of the spring pieces (6), at the upper end and the lower end of the positioning column, the spring pieces (7) are assembled in the mounting holes, and the spring pieces (7) are connected with the spring pieces (6);

and the positions of the positioning column (5) and the through hole (4) are provided with limiting structures.

2. The butt-joint plate with the blind buried hole as claimed in claim 1, wherein the positioning column (5) is provided with a protective pad (8) on both the upper end face and the lower end face; the protective pad (8) is used for preventing the positioning column (5) from damaging the circuit board (2).

3. The butt-joint plate with the blind buried hole according to claim 1, wherein the limiting structure mainly comprises: a plurality of limiting rings (9) and a plurality of limiting clamping edges (10);

wherein, the limiting ring (9) is assembled at the contact part of the positioning column (5) and the through hole (4), and the limiting clamping edge (10) is assembled on the limiting ring (9).

4. A butt-joint plate with blind buried holes according to claim 3, characterized in that the diameter of the limiting clamping ridge (10) is larger than that of the limiting ring (9).

5. A butt-joint plate with blind buried holes according to claim 1, characterized in that a plurality of four corners of the circuit board (2) are provided with protective sleeves; the protective sleeve is used for protecting the sleeve.