CN216650093U - High-density double-sided multilayer printed circuit board - Google Patents
High-density double-sided multilayer printed circuit board Download PDFInfo
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- CN216650093U CN216650093U CN202122938597.2U CN202122938597U CN216650093U CN 216650093 U CN216650093 U CN 216650093U CN 202122938597 U CN202122938597 U CN 202122938597U CN 216650093 U CN216650093 U CN 216650093U
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- printed circuit
- circuit board
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- shielding layer
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Abstract
The utility model discloses a high-density double-sided multilayer printed circuit board, which comprises a printed circuit board, a bottom plate, nuts and a bottom block, and is characterized in that a rubber top plate is installed at the top end of the printed circuit board, a shielding layer is installed at the top end of the rubber top plate, the bottom end of the shielding layer is fixedly connected with the rubber top plate, a protective layer is installed at the top end of the shielding layer, the bottom end of the protective layer is fixedly connected with the shielding layer, screw rods are respectively installed around the top end of the protective layer, the middle parts of the screw rods are respectively movably connected with the protective layer, the shielding layer and the rubber top plate, a heat dissipation metal plate is installed at the bottom end of the printed circuit board, the bottom plate is installed at the bottom end of the heat dissipation metal plate, round holes are respectively installed around the bottom plate, the screw rods are respectively in threaded connection with the nuts, a groove is installed at the middle part of the top end of the bottom plate, air outlet holes are uniformly distributed at two sides of the bottom end of the bottom plate, an exhaust fan is installed at the middle part of the bottom plate, the periphery of the exhaust fan is fixedly connected with the bottom plate respectively. The utility model has simple structure and convenient operation.
Description
Technical Field
The utility model relates to the technical field of printed circuit boards, in particular to a high-density double-sided multilayer printed circuit board.
Background
The flexible printed circuit board is characterized by light weight, thin thickness, softness and flexibility, is mainly used for a plurality of products such as mobile phones, notebook computers, PDAs, digital cameras, liquid crystal display screens and the like, and can be divided into a single-layer board, a double-sided board, a double-layer board, a multi-layer board and the like according to the number of layers of conductive copper foil, wherein the single-layer flexible board is the flexible board with the simplest structure. The circuit board comprises a substrate, an adhesive, copper foils, the adhesive and a protective film, wherein two sides of a double-sided board are provided with bonding pads, the double-sided board is mainly used for being connected with other circuit boards, the double-layered board and the multilayer board are more complex when circuits of the circuit are complex, and when a single-layer board cannot be wired, the double-layered board or the multilayer board is required to be used. The existing flexible printed circuit board has simple structure, poor bearing capacity and low density, and is easy to break.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a high-density double-sided multi-layer printed circuit board, which solves the above problems.
In order to achieve the purpose, the utility model provides the following technical scheme: a high-density double-sided multilayer printed circuit board comprises a printed circuit board, a bottom plate, a nut and a bottom block, and is characterized in that a rubber top plate is installed at the top end of the printed circuit board, a shielding layer is installed at the top end of the rubber top plate, the bottom end of the shielding layer is fixedly connected with the rubber top plate, a protective layer is installed at the top end of the shielding layer, the bottom end of the protective layer is fixedly connected with the shielding layer, screw rods are respectively installed around the top end of the protective layer, the middle parts of the screw rods are respectively movably connected with the protective layer, the shielding layer and the rubber top plate, a heat dissipation metal plate is installed at the bottom end of the printed circuit board, the bottom plate is installed at the bottom end of the heat dissipation metal plate, round holes are respectively installed around the bottom plate, the screw rods are respectively in threaded connection with the nut, a groove is installed at the middle part of the top end of the bottom plate, the bottom of bottom plate both sides evenly distributed have the venthole, the bottom middle part of bottom plate installs the air exhauster, the air exhauster around respectively with bottom plate fixed connection, the bottom of bottom plate is installed the bottom piece all around respectively.
Further, the bottom of rubber roof with printed circuit board laminates each other, the bottom of printed circuit board with the top of heat dissipation metal sheet laminates each other.
Furthermore, the bottom end of the screw rod is respectively movably connected with the round holes, and the bottom end of the screw rod is fixedly connected with the top end of the bottom block.
Further, the exhaust fan is electrically connected with a power supply.
Furthermore, the periphery of the heat dissipation metal plate is movably connected with the screw respectively.
Compared with the prior art, the utility model has the following beneficial effects:
the protective layer and the shielding layer respectively play roles in preventing collision and shielding external signal interference on the printed circuit board, and the rubber top plate can weaken the impact force of collision. The heat dissipation metal plate can absorb the heat of the printed circuit board, and the fan can accelerate external airflow to enter the bottom plate, so that the heat dissipation efficiency of the device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic overall cross-sectional view of a high-density double-sided multilayer printed circuit board;
FIG. 2 is a schematic partial cross-sectional view of a high density double-sided multilayer printed circuit board;
fig. 3 is an overall top view schematic diagram of a high density double-sided multilayer printed circuit board.
Reference numerals:
1. a protective layer; 2. a shielding layer; 3. a rubber top plate; 4. a printed circuit board; 5. a nut; 6. a screw; 7. a heat-dissipating metal plate; 8. a base plate; 9. a bottom block; 10. an air outlet; 11. a groove; 12. a micro fan; 13. a circular hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1-3, a high-density double-sided multilayer printed circuit board according to an embodiment of the present invention includes a printed circuit board 4, a bottom plate 8, a nut 5 and a bottom block 9, and is characterized in that a rubber top plate 3 is installed at a top end of the printed circuit board 4, a shielding layer 2 is installed at a top end of the rubber top plate 3, a bottom end of the shielding layer 2 is fixedly connected to the rubber top plate 3, a protective layer 1 is installed at a top end of the shielding layer 2, a bottom end of the protective layer 1 is fixedly connected to the shielding layer 2, screws 6 are respectively installed around a top end of the protective layer 1, a middle portion of each screw 6 is respectively movably connected to the protective layer 1, the shielding layer 2 and the rubber top plate 3, a heat dissipation metal plate 7 is installed at a bottom end of the printed circuit board 4, the bottom end of the heat dissipation metal plate 7 is installed with the bottom plate 8, and round holes 13 are respectively installed around the bottom plate 8, the screw rod 6 respectively with nut 5 threaded connection, bottom plate 8's top middle part is installed recess 11, bottom plate 8's bottom both sides evenly distributed has venthole 10, bottom plate 8's bottom middle part is installed air exhauster 12, air exhauster 12 all around respectively with bottom plate 8 fixed connection, bottom block 9 is installed respectively all around to the bottom of bottom plate 8.
According to the scheme of the utility model, the bottom end of the rubber top plate 3 is attached to the printed circuit board 4, the bottom end of the printed circuit board 4 is attached to the top end of the heat dissipation metal plate 7, the bottom ends of the screw rods 6 are movably connected with the circular holes 13 respectively, the bottom ends of the screw rods 6 are fixedly connected with the top end of the bottom block 9, the exhaust fan 12 is electrically connected with the power supply, and the periphery of the heat dissipation metal plate 7 is movably connected with the screw rods 6 respectively.
The working principle is as follows: the protective layer 1 and the shielding layer 2 respectively play roles in preventing collision and shielding external signal interference on the printed circuit board 4, and the rubber top plate 3 can weaken the impact force of the collision. The heat dissipation metal plate 7 can absorb the heat of the printed circuit board 4, and the exhaust fan 12 can accelerate the outside air flow to enter the bottom plate 8, so that the heat dissipation efficiency of the device is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a two-sided multilayer printed circuit board of high density, includes printed circuit board (4), bottom plate (8), nut (5) and bottom piece (9), its characterized in that, rubber roof (3) are installed on the top of printed circuit board (4), shielding layer (2) are installed on the top of rubber roof (3), the bottom of shielding layer (2) with rubber roof (3) fixed connection, protective layer (1) is installed on the top of shielding layer (2), the bottom of protective layer (1) with shielding layer (2) fixed connection, screw rod (6) are installed respectively all around to the top of protective layer (1), the middle part of screw rod (6) respectively with protective layer (1), shielding layer (2) and rubber roof (3) swing joint, heat dissipation metal swing joint is installed to the bottom of printed circuit board (4)Board(7) The bottom of heat dissipation metal sheet (7) is installed bottom plate (8), round hole (13) are installed respectively all around of bottom plate (8), screw rod (6) respectively with nut (5) threaded connection, the top middle part of bottom plate (8) is installed recess (11), the bottom both sides evenly distributed of bottom plate (8) has venthole (10), air exhauster (12) are installed to the bottom middle part of bottom plate (8), air exhauster (12) all around respectively with bottom plate (8) fixed connection, bottom block (9) are installed respectively all around to the bottom of bottom plate (8).
2. A high-density double-sided multilayer printed circuit board according to claim 1, wherein the bottom end of the rubber top plate (3) and the printed circuit board (4) are attached to each other, and the bottom end of the printed circuit board (4) and the top end of the heat dissipating metal plate (7) are attached to each other.
3. The high-density double-sided multilayer printed circuit board as claimed in claim 1, wherein the bottom ends of the screws (6) are movably connected with the circular holes (13), respectively, and the bottom ends of the screws (6) are fixedly connected with the top ends of the bottom blocks (9).
4. The double-sided multilayer printed circuit board according to claim 1, wherein the suction fan (12) is electrically connected to a power source.
5. A high-density double-sided multilayer printed circuit board according to claim 1, wherein the peripheries of the heat-dissipating metal plates (7) are movably connected with the screws (6), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122938597.2U CN216650093U (en) | 2021-11-27 | 2021-11-27 | High-density double-sided multilayer printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122938597.2U CN216650093U (en) | 2021-11-27 | 2021-11-27 | High-density double-sided multilayer printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216650093U true CN216650093U (en) | 2022-05-31 |
Family
ID=81738576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122938597.2U Active CN216650093U (en) | 2021-11-27 | 2021-11-27 | High-density double-sided multilayer printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216650093U (en) |
-
2021
- 2021-11-27 CN CN202122938597.2U patent/CN216650093U/en active Active
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