CN217770469U - Circuit board with electrostatic shielding function - Google Patents
Circuit board with electrostatic shielding function Download PDFInfo
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- CN217770469U CN217770469U CN202221445098.8U CN202221445098U CN217770469U CN 217770469 U CN217770469 U CN 217770469U CN 202221445098 U CN202221445098 U CN 202221445098U CN 217770469 U CN217770469 U CN 217770469U
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- circuit board
- electrostatic shielding
- plate
- metal frame
- shielding function
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Abstract
The utility model provides a circuit board with electrostatic shielding function, which comprises a lower plate made of metal and an upper plate made of metal; the lower plate comprises a rectangular plate body, and a metal frame which is vertical to the front surface is arranged on the periphery of the front surface of the plate body; a fixing plate made of metal is arranged on the side wall of the plate body; the metal frame upper surface and the metal frame lower surface all are equipped with horizontal slot hole, and metal frame left surface and metal frame right surface all are equipped with vertical slot hole. The utility model relates to a circuit board with electrostatic shielding function constitutes the three-layer circuit board structure that has the electrostatic shielding function with hypoplastron, upper plate and the base plate that carries on electronic component, cooperates the design of two horizontal slot holes and two vertical slot holes, when having good electrostatic shielding effect, has the guide effect to the hot-air that receives the circuit board heating, has improved air flow radiating effect.
Description
Technical Field
The utility model belongs to the circuit board field especially relates to a circuit board with electrostatic shielding function.
Background
The circuit board is used as a basic component of electronic products and is widely applied to various electronic products, different functional modules are respectively arranged on the corresponding circuit boards in some large automatic control cabinets, when equipment breaks down, field maintenance personnel only need to judge and replace the circuit board of the functional module according to the type of the fault, and the modularized arrangement can effectively improve the fault maintenance speed. Under prior art's condition, integrated function is abundanter in the automatic control cabinet, and corresponding module circuit board quantity is just also more, is subject to the restriction of automatic control cabinet volume, and the interval is narrow and small between the circuit board, and electrostatic interference between the circuit board appears easily, influences the normal operating of circuit board, and common shield assembly also has simultaneously that the shielding effect is unsatisfactory, influences the radiating problem of circuit board.
Disclosure of Invention
In view of this, the utility model aims at providing a circuit board with electrostatic shielding function uses hypoplastron, upper plate and carries on electronic component's base plate to constitute the three-layer circuit board structure that has electrostatic shielding function, cooperates the design of two horizontal slot holes and two vertical slot holes, when having good electrostatic shielding effect, has the guide effect to the hot-air that receives the circuit board heating, has effectively improved the air flow radiating effect.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a circuit board with electrostatic shielding function comprises a lower plate made of metal and an upper plate made of metal; the lower plate comprises a rectangular plate body, and a metal frame which is vertical to the front surface is arranged on the periphery of the front surface of the plate body; a fixing plate made of metal is arranged on the side wall of the plate body; the upper surface of the metal frame and the lower surface of the metal frame are both provided with transverse long holes, and the left surface of the metal frame and the right surface of the metal frame are both provided with longitudinal long holes; the middle parts of the left inner wall and the right inner wall of the metal frame are respectively provided with a step, the surfaces of the steps are respectively provided with an insulating layer, and the substrate is fixed on the two steps; the two transverse long holes are respectively arranged at the front side and the rear side of the base plate, and the two longitudinal long holes are respectively arranged at the front side and the rear side of the base plate; the top end of the metal frame is provided with a groove, and the periphery of the rectangular upper plate is inserted into the groove to form an electrostatic shielding space.
Furthermore, the area of the substrate is two thirds of the area of the plate body.
Furthermore, both ends all are equipped with the arch that is used for extracting about the upper plate front surface.
Furthermore, the step is provided with a threaded hole for fixing the substrate.
Furthermore, four fixing plates are arranged on the upper side wall, the lower side wall, the left side wall and the right side wall of the plate body.
Furthermore, the fixing plate is provided with a through hole for fixing.
Compared with the prior art, the utility model relates to a circuit board with electrostatic shielding function has following advantage:
first, the utility model discloses a circuit board with electrostatic shielding function can realize the electrostatic shielding effect by the hypoplastron of metal material and the upper plate of metal material, has effectively improved the reliability of circuit board operation.
Second, the utility model discloses a circuit board with electrostatic shielding function, through two vertical slot holes and two horizontal slot holes of dislocation diagonal angle setting, can realize having the circulation of air passageway in the electrostatic shielding space, have the guide effect to the hot-air that receives the circuit board heating, guarantee the thermal diffusivity of circuit board.
Third, the utility model discloses a circuit board with electrostatic shielding function, in the recess on hypoplastron metal frame top was inserted to the upper plate, fixed through the upper plate all around and the frictional resistance between the recess inner wall realization, make things convenient for the technical staff to open the upper plate and look over and maintain.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.
In the drawings:
fig. 1 is a schematic structural view of a circuit board lower plate with an electrostatic shielding function according to an embodiment of the present invention;
fig. 2 is a schematic view of a circuit board substrate having an electrostatic shielding function according to an embodiment of the present invention;
fig. 3 is a schematic front view of a circuit board lower plate with an electrostatic shielding function according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an upper board of a circuit board having an electrostatic shielding function according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the heat dissipation of the air flow inside the circuit board with electrostatic shielding function according to an embodiment of the present invention.
Description of the reference numerals:
1-a lower plate; 11-transverse slot; 12-a fixing plate; 13-step; 14-longitudinal long hole; 15-a groove; 2-a substrate; 3, upper plate; 31-bump.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 5, a circuit board with electrostatic shielding function includes a lower plate 1 made of metal and an upper plate 3 made of metal; the lower plate 1 comprises a rectangular plate body, and a metal frame which is vertical to the front surface is arranged on the periphery of the front surface of the plate body; a fixing plate 12 made of metal is arranged on the side wall of the plate body; the upper surface and the lower surface of the metal frame are respectively provided with a transverse long hole 11, and the left surface and the right surface of the metal frame are respectively provided with a longitudinal long hole 14; the middle parts of the left inner wall and the right inner wall of the metal frame are respectively provided with a step 13, the surfaces of the steps 13 are respectively provided with an insulating layer, and the substrate 2 is fixed on the two steps 13; two transverse long holes 11 are respectively arranged at the front side and the rear side of the base plate 2, and two longitudinal long holes 14 are respectively arranged at the front side and the rear side of the base plate 2; the top end of the metal frame is provided with a groove 15, and the periphery of the rectangular upper plate 3 is inserted into the groove 15 to form an electrostatic shielding space.
In this embodiment, the lower plate 1, the upper plate 3 and the substrate 2 constitute a circuit board structure with electrostatic shielding function, wherein the substrate 2 is a board layer for carrying electronic components, the lower plate 1 and the upper plate 3 are both of metal structures, and the periphery of the upper plate 3 is inserted into the groove 15 of the lower plate 1 to form a box-shaped electrostatic shielding space.
As shown in fig. 2, the area of the substrate 2 is two thirds of the area of the plate body.
In this embodiment, the lower plate 1 may be fixed at a designated position in the chassis through the fixing plates 12 around the plate body, and further, an operator may select a pair of the transverse long holes 11 or a pair of the longitudinal long holes 14 as a threading hole according to a position requirement, so as to connect the substrate 2 with a wire of another external circuit.
After a pair of transverse long holes 11 or a pair of longitudinal long holes 14 are selected as threading holes, the remaining pair of transverse long holes 11 or the remaining pair of longitudinal long holes 14 are used as heat dissipation holes, and the pair of transverse long holes 11 or the pair of longitudinal long holes 14 are respectively arranged at the front side and the rear side of the base plate 2 in opposite angles, so that the flowing effect of air flow can be ensured, and the heat dissipation performance is improved.
As shown in fig. 5, when two longitudinal long holes 14 are used as threading holes, and the substrate 2 is connected with the external wires of other circuits, the two remaining transverse long holes 11 are used as heat dissipation holes, and at this time, because the two transverse long holes 11 are arranged in diagonal, the external air flow enters from the transverse long hole 11 at the left end under the action of the heat dissipation fan in the box body, and is divided into two paths to flow along the front and back surfaces of the substrate 2, and finally flows out from the transverse long hole 11 at the diagonal of the right end, so that the air flow is fully contacted with the front and back surfaces of the substrate 2, and the heat dissipation performance is improved.
Therefore, the pair of longitudinal long holes 14 or the pair of transverse long holes 11 arranged diagonally can make the air entering from the outside fully contact with the upper and lower surfaces of the substrate 2, and have a guiding function on the hot air heated by the circuit board, thereby improving the heat radiation performance.
As shown in fig. 4, the upper plate 3 is provided with protrusions 31 for pull-out at both left and right ends of the front surface.
Because the periphery of the upper plate 3 is fixed by the friction resistance between the upper plate and the inner wall of the groove 15 at the top end of the metal frame of the lower plate 1, an operator can conveniently separate the upper plate 3 from the lower plate 1 by means of the protrusion 31.
As shown in fig. 1-2, the step 13 is provided with a screw hole for fixing the substrate 2.
The provision of two steps 13 ensures the stability of the substrate 2.
As shown in fig. 1, four fixing plates 12 are provided, and the four fixing plates 12 are respectively provided on the upper, lower, left and right side walls of the plate body.
As shown in fig. 1, the fixing plate 12 is provided with a through hole for fixing.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A circuit board with an electrostatic shielding function is characterized in that: comprises a lower plate (1) made of metal and an upper plate (3) made of metal; the lower plate (1) comprises a rectangular plate body, and a metal frame perpendicular to the front surface is arranged on the periphery of the front surface of the plate body; a fixing plate (12) made of metal is arranged on the side wall of the plate body; the upper surface of the metal frame and the lower surface of the metal frame are both provided with transverse long holes (11), and the left surface of the metal frame and the right surface of the metal frame are both provided with longitudinal long holes (14); steps (13) are arranged in the middle of the left inner wall and the right inner wall of the metal frame, insulating layers are arranged on the surfaces of the steps (13), and the substrate (2) is fixed on the two steps (13); the two transverse long holes (11) are respectively formed in the front side and the rear side of the base plate (2), and the two longitudinal long holes (14) are respectively formed in the front side and the rear side of the base plate (2); a groove (15) is formed in the top end of the metal frame, and the periphery of the rectangular upper plate (3) is inserted into the groove (15) to form an electrostatic shielding space.
2. The circuit board with electrostatic shielding function according to claim 1, wherein: the area of the substrate (2) is two thirds of the area of the plate body.
3. The circuit board with electrostatic shielding function according to claim 1, wherein: both ends all are equipped with arch (31) that are used for extracting about upper plate (3) front surface.
4. The circuit board with electrostatic shielding function according to claim 1, wherein: and the step (13) is provided with a threaded hole for fixing the substrate (2).
5. The circuit board with electrostatic shielding function according to claim 1, wherein: the number of the fixing plates (12) is four, and the four fixing plates (12) are respectively arranged on the upper side wall, the lower side wall, the left side wall and the right side wall of the plate body.
6. The circuit board with electrostatic shielding function according to claim 5, wherein: the fixing plate (12) is provided with a through hole for fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221445098.8U CN217770469U (en) | 2022-06-10 | 2022-06-10 | Circuit board with electrostatic shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221445098.8U CN217770469U (en) | 2022-06-10 | 2022-06-10 | Circuit board with electrostatic shielding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217770469U true CN217770469U (en) | 2022-11-08 |
Family
ID=83893329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221445098.8U Active CN217770469U (en) | 2022-06-10 | 2022-06-10 | Circuit board with electrostatic shielding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217770469U (en) |
-
2022
- 2022-06-10 CN CN202221445098.8U patent/CN217770469U/en active Active
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