CN219628014U

CN219628014U - Hole plugging structure of printed circuit board

Info

Publication number: CN219628014U
Application number: CN202320651246.XU
Authority: CN
Inventors: 舒道海; 黄三川
Original assignee: Wanan Wangshun Electronics Co ltd
Current assignee: Wanan Wangshun Electronics Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-09-01
Anticipated expiration: 2033-03-29

Abstract

The utility model discloses a hole plugging structure of a printed circuit board, which comprises a screen printer table top, wherein positioning columns are symmetrically and fixedly arranged at the top of the screen printer table top, a non-woven fabric pad, a circuit board positioning frame and a cover frame are sleeved outside the positioning columns, a hole plugging screen plate is fixedly arranged in an inner cavity of the cover frame, and the positioning columns are arranged to accurately position the non-woven fabric pad, the circuit board positioning frame and the cover frame, so that a screen pattern hole and a via hole can be quickly aligned, the influence of shaking and misplacement of the circuit board on production and processing during printing can be avoided, hole plugging ink flows into the via hole through the screen pattern hole, a good hole plugging effect can be formed, the quantity of ink scraped into the via hole at one time can be effectively controlled, the non-woven fabric pad can breathe and adsorb redundant ink, the pollution of the screen printer table top can be prevented, the ink in the via hole can be full and stable, and a good hole plugging structure foundation can be provided for manufacturing the circuit board.

Description

Hole plugging structure of printed circuit board

Technical Field

The utility model relates to the technical field of circuit board processing, in particular to a hole plugging structure of a printed circuit board.

Background

The printed circuit board is also called a printed circuit board and a circuit board, is used as an important electronic component, is a basic support body of the electronic component and is also a carrier for electrically connecting the electronic component, and is made by adopting an electronic printing technology, so the printed circuit board is called a printed circuit board, and for a circuit board product needing to strictly control the impedance characteristic and the appearance of a circuit, an ink plugging process is generally required to plug the through hole of the circuit board with ink to form a flat surface; the hole plugging is generally realized by adopting a mode of manufacturing a hole plugging screen plate and scraping ink into the hole through screen printing, and for a circuit board with a larger hole diameter, the hole plugging is easy to generate oil leakage, incomplete hole plugging, pollution to the table surface of a screen printing machine, and the like, so that the hole plugging pollution, hole plugging cavity and the like are caused.

The utility model of application number 202121206239.6 relates to a circuit board plug hole typesetting structure, which consists of a plug hole screen plate, a circuit board and non-woven fabrics which are sequentially stacked, wherein the plug hole typesetting structure is arranged on a screen printer table top, and the non-woven fabrics are attached to the screen printer table top; the hole plugging screen plate is provided with screen plate pattern holes, the circuit board is provided with through holes, the hole centers of the screen plate pattern holes correspond to the hole centers of the through holes, and the diameter of the screen plate pattern holes is smaller than that of the through holes; the hole plugging typesetting structure of the circuit board can effectively control the ink quantity scraped into the through holes at one time by properly shrinking the screen pattern holes of the screen plate, and the non-woven fabric is padded on the screen printing table top, so that the air permeability and the adsorption of redundant ink can be realized, the pollution of the screen printing table top is prevented, the ink in the through holes is full and stable, but the hole plugging structure of the printed circuit board has poor positioning accuracy, the screen pattern holes and the through holes cannot be aligned quickly, and the circuit board is easy to shake during printing, so that the production quality of the circuit board can be influenced.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

The present utility model provides a hole plugging structure for a printed circuit board to solve the above-mentioned problems of the prior art.

For this purpose, the utility model adopts the following specific technical scheme:

the utility model provides a printed circuit board's jack structure, includes the screen printer mesa, the fixed reference column that is equipped with in screen printer mesa top symmetry, the cover is equipped with non-woven fabrics pad, circuit board locating frame, lid frame outside the reference column cover, the lid frame inner chamber is fixed to be equipped with the jack otter board, the otter board figure hole has been seted up on the jack otter board, circuit board locating frame inner chamber is equipped with the circuit board, the via hole has been seted up on the circuit board.

Preferably, the non-woven fabric pad comprises a non-woven fabric pad body, and positioning sleeves are symmetrically arranged at four corners of the non-woven fabric pad body.

Preferably, the circuit board positioning frame comprises an outer frame body, positioning holes I are symmetrically formed in four corners of the outer frame body, and a circuit board positioning groove is formed in the middle of the outer frame body.

Preferably, the cover frame comprises a frame plate, and positioning holes II are symmetrically formed in four corners of the frame plate.

Preferably, the thickness of the non-woven fabric mat is smaller than that of the circuit board, and the thickness of the non-woven fabric mat is 20 μm to 50 μm.

Preferably, the difference between the diameter of the via hole and the diameter of the screen pattern hole is 20 μm to 40 μm.

The beneficial effects of the utility model are as follows: through setting up the reference column, the reference column can carry out the accurate positioning to non-woven fabrics pad, circuit board locating frame, lid frame, not only can make otter board figure hole and via hole counterpoint fast, the circuit board rocks dislocation when can avoiding printing moreover and influences production and processing, the hole filling ink flows into the via hole through otter board figure hole in, can form good hole filling effect, can effectively control the disposable printing ink volume of scraping into the via hole, the non-woven fabrics pad can ventilate and adsorb unnecessary printing ink, can prevent printing ink pollution screen printer mesa, can make the printing ink in the via hole full and stable, can provide good hole filling structure basis for circuit board hole filling preparation.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of a printed circuit board receptacle structure according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a printed circuit board receptacle structure according to an embodiment of the present utility model;

FIG. 3 is a circuit board positioning frame structure of a plug hole structure of a printed circuit board according to an embodiment of the present utility model;

fig. 4 is a cross-sectional view of a cover frame of a receptacle structure of a printed circuit board according to an embodiment of the present utility model.

In the figure:

1. a screen printer table top; 2. positioning columns; 3. a non-woven fabric pad; 4. a circuit board positioning frame; 5. a cover frame; 6. a hole plugging screen plate; 7. a screen plate pattern hole; 8. a circuit board; 9. a via hole; 10. a non-woven fabric pad body; 11. a positioning sleeve; 12. an outer frame body; 13. positioning holes I; 14. a circuit board positioning groove; 15. a frame plate; 16. and a positioning hole II.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, a plug hole structure of a printed circuit board is provided.

Example 1

As shown in fig. 1-4, according to the embodiment of the utility model, the plug hole structure of the printed circuit board comprises a screen printer table top 1, the top of the screen printer table top 1 is symmetrically and fixedly provided with positioning columns 2, the positioning columns 2 can accurately position a non-woven fabric pad 3, a circuit board positioning frame 4 and a cover frame 5, the thickness of the non-woven fabric pad 3 is smaller than that of the circuit board 8, the thickness of the non-woven fabric pad 3 is 20-50 μm, the non-woven fabric pad 3 can be prevented from shaking and misplacement during printing to affect production and processing, a non-woven fabric pad 3, the circuit board positioning frame 4 and the cover frame 5 are sleeved outside the positioning columns 2, a plug hole screen 6 is fixedly arranged in an inner cavity of the cover frame 5, the screen board pattern hole 7 is arranged on the plug hole screen 6, the circuit board 8 is arranged in an inner cavity of the circuit board positioning frame 4, the circuit board 8 is provided with a via hole 9, the non-woven fabric pad 3 comprises a non-woven fabric pad body 10, positioning sleeves 11 are symmetrically arranged at four corners of the non-woven fabric pad body 10, the thickness of the non-woven fabric pad 3 is smaller than that of the circuit board 8, the thickness of the non-woven fabric pad 3 is 20-50 μm, the non-woven fabric pad 3 can be ventilated and absorb redundant ink, the ink can be prevented from polluting the screen printer table top 1, the plug hole 9 can be well and the plug hole structure of the circuit board can be manufactured, and the plug hole structure has a stable foundation structure.

Example two

As shown in fig. 1-4, according to the embodiment of the utility model, the hole plugging structure of the printed circuit board comprises a screen printer table top 1, wherein positioning columns 2 are symmetrically and fixedly arranged at the top of the screen printer table top 1, the positioning columns 2 can accurately position a non-woven fabric pad 3, a circuit board positioning frame 4 and a cover frame 5, the mesh board pattern holes 7 and the through holes 9 can be quickly aligned, the influence of shaking and dislocation of the circuit board 8 during printing on production and processing can be avoided, the non-woven fabric pad 3, the circuit board positioning frame 4 and the cover frame 5 are sleeved outside the positioning columns 2, a hole plugging screen 6 is fixedly arranged in an inner cavity of the cover frame 5, the mesh board pattern holes 7 are formed in the hole plugging screen 6, the circuit board 8 is arranged in an inner cavity of the circuit board positioning frame 4, the circuit board 9 is formed in the circuit board 8, the circuit board positioning frame 4 comprises an outer frame 12, positioning holes 13 are symmetrically formed in four corners of the outer frame 12, and circuit board positioning grooves 14 are formed in the middle of the outer frame 12, and the circuit board 8 can be quickly positioned through the circuit board positioning grooves 14.

Example III

As shown in fig. 1-4, according to the embodiment of the utility model, the hole plugging structure of the printed circuit board comprises a screen printer table top 1, wherein the top of the screen printer table top 1 is symmetrically and fixedly provided with positioning columns 2, the positioning columns 2 can accurately position a non-woven fabric pad 3, a circuit board positioning frame 4 and a cover frame 5, the mesh plate pattern holes 7 and the through holes 9 can be quickly aligned, the influence of shaking and dislocation of the circuit board 8 during printing on production and processing can be avoided, the non-woven fabric pad 3, the circuit board positioning frame 4 and the cover frame 5 are sleeved outside the positioning columns 2, a hole plugging screen 6 is fixedly arranged in the inner cavity of the cover frame 5, the mesh plate pattern holes 7 are formed in the hole plugging screen 6, the circuit board 8 is arranged in the inner cavity of the circuit board positioning frame 4, the circuit board 8 is provided with through holes 9, the cover frame 15 comprises frame 15, positioning holes two 16 are symmetrically arranged at four corners of the frame 15, the difference between the diameters of the through holes 9 and the diameters of the through holes 7 is 20-40 μm, and the ink for plugging holes can flow into the through holes 9 through the mesh plate pattern holes 7, good hole plugging effect can be formed, and the quantity of ink which can be scraped once.

In summary, by means of the technical scheme of the utility model, when the device is used, the positioning column 2 can accurately position the non-woven fabric pad 3, the circuit board positioning frame 4 and the cover frame 5, so that the screen board pattern holes 7 and the through holes 9 can be aligned quickly, the influence of shaking and misplacement of the circuit board 8 during printing on production and processing can be avoided, the non-woven fabric pad 3 can breathe and absorb redundant ink, the ink can be prevented from polluting the screen printer table board 1, the ink in the through holes 9 is full and stable, a good hole structure foundation can be provided for hole plugging manufacture of the circuit board 8, hole plugging ink flows into the through holes 9 through the screen board pattern holes 7, a good hole plugging effect can be formed, and the ink quantity scraped into the through holes 9 at one time can be effectively controlled.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a plug hole structure of printed circuit board, includes silk screen printing machine mesa (1), its characterized in that: the screen printer table top (1) top symmetry is fixed and is equipped with reference column (2), reference column (2) outside cover is equipped with non-woven fabrics pad (3), circuit board locating frame (4), lid frame (5) inner chamber is fixed and is equipped with jack screen plate (6), screen plate figure hole (7) have been seted up on jack screen plate (6), circuit board locating frame (4) inner chamber is equipped with circuit board (8), through-hole (9) have been seted up on circuit board (8).

2. The printed circuit board plugging structure according to claim 1, wherein: the non-woven fabric pad (3) comprises a non-woven fabric pad body (10), and positioning sleeves (11) are symmetrically arranged at four corners of the non-woven fabric pad body (10).

3. A printed circuit board plugging structure according to claim 2 wherein: the circuit board positioning frame (4) comprises an outer frame body (12), positioning holes I (13) are symmetrically formed in four corners of the outer frame body (12), and a circuit board positioning groove (14) is formed in the middle of the outer frame body (12).

4. A printed circuit board plugging structure according to claim 3 wherein: the cover frame (5) comprises a frame plate (15), and positioning holes II (16) are symmetrically formed in four corners of the frame plate (15).

5. The printed circuit board plugging structure according to claim 4, wherein: the thickness of the non-woven fabric pad (3) is smaller than that of the circuit board (8), and the thickness of the non-woven fabric pad (3) is 20-50 μm.

6. The printed circuit board plugging structure according to claim 5, wherein: the difference between the diameter of the via hole (9) and the diameter of the screen pattern hole (7) is 20-40 [ mu ] m.