CN-122002776-A - Adjustable modularized electromagnetic shielding structure

CN122002776ACN 122002776 ACN122002776 ACN 122002776ACN-122002776-A

Abstract

The invention provides an adjustable modularized electromagnetic shielding structure. The adjustable modularized electromagnetic shielding structure comprises a plurality of L-shaped single modules, wherein each L-shaped single module is composed of a first side section and a second side section which are connected perpendicularly, the length of each first side section is larger than that of each second side section, the L-shaped single modules can be mutually spliced to form a modularized electromagnetic shielding structure in two-dimensional space and three-dimensional space, and the adjacent L-shaped single modules can be relatively displaced through a driving mechanism, so that the modularized electromagnetic shielding structure is switched between an unfolding state and a shrinking state. The adjustable modularized electromagnetic shielding structure provided by the invention realizes multi-dimensional adjustment of the porosity of the electromagnetic shielding structure through two-dimensional and three-dimensional orthogonal stacking of the L-shaped single modules, has the characteristics of self-locking, high stability and high modularization degree, is convenient to expand and maintain, and is suitable for various electromagnetic shielding application scenes.

Inventors

LIU WEI
XU XIANG
GUO LIANCHAO
CHEN JIALE
LIU WENJING
WANG JIAWEI
HU JINHUI
SHI ZHINAN

Assignees

安徽农业大学

Dates

Publication Date: 20260508
Application Date: 20260317

Claims (10)

1. The utility model provides an adjustable modularization electromagnetic shield structure, its characterized in that includes a plurality of L type monomer module (1), L type monomer module (1) comprises mutually perpendicular first limit section and second limit section that connects, and the length of first limit section is greater than the length of second limit section, a plurality of L type monomer module (1) can splice each other and constitute two-dimensional and three-dimensional space's modularization electromagnetic shield structure, adjacent can take place relative displacement through actuating mechanism between L type monomer module (1), makes the modularization electromagnetic shield structure switches between expansion state and shrinkage state, changes the equivalent porosity of modularization electromagnetic shield structure in order to adjust electromagnetic shield performance.
2. The tunable modular electromagnetic shielding structure of claim 1, wherein two L-shaped single modules (1) are stacked orthogonally along a first side direction to form a basic structural unit (2), the basic structural unit (2) forming an open area for structural reconstruction in a plane.
3. The tunable modular electromagnetic shielding structure of claim 2, wherein a plurality of the basic structural units (2) are arranged in an array along mutually perpendicular X-axis and Y-axis directions in a two-dimensional plane, forming a two-dimensional modular electromagnetic shielding structural unit (3).
4. An adjustable modular electromagnetic shielding structure according to claim 3, wherein the two-dimensional modular electromagnetic shielding structure unit (3) has an open state in which the distance between the plurality of basic structure units (2) is increased and the overall porosity is increased, and a contracted state in which the plurality of basic structure units (2) are brought close to each other and the overall porosity is reduced, and wherein the two-dimensional modular electromagnetic shielding structure unit (3) is required to apply driving force in both the X-axis direction and the Y-axis direction when fully extended or fully contracted to form a two-dimensional self-locking structure characteristic.
5. The tunable modular electromagnetic shielding structure according to claim 2, wherein the three-dimensional modular electromagnetic shielding structure unit (4) is formed by three basic structure units (2) orthogonally arranged along X-axis, Y-axis and Z-axis directions, respectively, and connected to each other.
6. The adjustable modular electromagnetic shielding structure according to claim 5, wherein the three-dimensional modular electromagnetic shielding structure unit (4) needs to apply driving forces in three directions of X axis, Y axis and Z axis simultaneously during the expansion or contraction process, so as to form the three-dimensional cooperative self-locking structure characteristic.
7. The tunable modular electromagnetic shielding structure according to claim 6, wherein a plurality of the three-dimensional modular electromagnetic shielding structure units (4) are combined in a cubic array to form a smallest cell structure unit (5), the smallest cell structure unit (5) being capable of functioning as a basic repeating unit of a macroscopic electromagnetic shielding structure.
8. The adjustable modularized electromagnetic shielding structure according to claim 1, wherein the driving mechanism comprises an electromagnet (6) composed of a copper coil (9), a plunger (11) with a hook at the outer end and a return spring (10), a connecting hanging ring (7) and a square hole (8), wherein the square hole (8) is formed in the end part of the outer side surface of the L-shaped single module (1), and the connecting hanging ring (7) is fixedly connected to the inner end of the side wall of the L-shaped single module (1); Copper coil (9) fixed connection in the outer end of square hole (8) inner wall, plunger (11) can remove set up in the inner chamber of square hole (8), the outer end activity of plunger (11) body of rod runs through copper coil (9), and extend to the outside of L type monomer module (1), be used for with other have connect link (7) L type monomer module (1) is connected, reset spring (10) one end fixed connection in the middle part of square hole (8) inner wall, and the cubic afterbody of other end butt at plunger (11).
9. The adjustable modularized electromagnetic shielding structure according to claim 1, wherein the driving mechanism comprises an elastic element and a plurality of conductive parts (13), the elastic element is composed of a connecting hanging ring (7) and extension springs (12) with hooks at two ends, the connecting hanging ring (7) is fixedly connected to the inner ends of the side walls of the L-shaped single modules (1), the extension springs (12) are hung between two adjacent connecting hanging rings (7), the elastic element is used for enabling the modularized electromagnetic shielding structure to provide a reset effect when no external driving exists, and the conductive parts (13) are arranged on the corresponding surfaces of the adjacent L-shaped single modules (1) driven by stress.
10. The adjustable modularized electromagnetic shielding structure according to claim 1, wherein the driving mechanism comprises a plurality of conductive parts (13), and the conductive parts (13) are arranged on the corresponding surfaces of the adjacent L-shaped single modules (1) driven by force.

Description

Adjustable modularized electromagnetic shielding structure Technical Field The invention relates to the field of electromagnetic shielding structures, in particular to an adjustable modularized electromagnetic shielding structure. Background Along with the continuous expansion of high integration and working frequency bands of electronic equipment, the electromagnetic interference problem is increasingly prominent, and the electromagnetic shielding structure is widely applied to the fields of communication equipment, precise instruments, aerospace, national defense engineering and the like as an important means for inhibiting electromagnetic leakage and external interference. The existing electromagnetic shielding structure adopts a metal shielding cover or a composite material shielding layer with fixed porosity, the structural form is single, the shielding performance is difficult to dynamically adjust according to actual use requirements, and when heat dissipation, ventilation and shielding performances are required to be considered under different working states, the traditional fixed structure is difficult to meet the application requirements of multiple scenes. Meanwhile, although a part of adjustable shielding structure is introduced into a movable unit, the structure is complex, the degree of freedom of adjustment is limited, the driving mode of one direction is depended on, the coordinated adjustment of multiple dimensions is difficult to realize, and the structural stability and reliability are insufficient. Therefore, there is a need to provide an adjustable modular electromagnetic shielding structure that solves the above-mentioned technical problems. Disclosure of Invention The invention provides an adjustable modularized electromagnetic shielding structure, which solves the problems that the existing electromagnetic shielding structure mostly adopts a metal shielding cover or a composite material shielding layer with fixed porosity, the structure form is single, and dynamic adjustment is difficult to realize according to actual use requirements. In order to solve the technical problems, the adjustable modularized electromagnetic shielding structure provided by the invention comprises a plurality of L-shaped single modules, wherein each L-shaped single module consists of a first side section and a second side section which are mutually and perpendicularly connected, the length of the first side section is larger than that of the second side section, the L-shaped single modules can be mutually spliced to form a modularized electromagnetic shielding structure in two-dimensional space and three-dimensional space, and the adjacent L-shaped single modules can be relatively displaced through a driving mechanism, so that the modularized electromagnetic shielding structure is switched between an unfolding state and a shrinking state, and the equivalent porosity of the modularized electromagnetic shielding structure is changed to adjust the electromagnetic shielding performance. Preferably, two L-shaped individual modules are stacked orthogonally in the direction of the first side section to form a basic structural unit, which forms an open area for structural reconstruction in a plane. Preferably, a plurality of the basic structural units are arranged in an array manner in a two-dimensional plane along the X-axis direction and the Y-axis direction which are mutually perpendicular to form a two-dimensional modularized electromagnetic shielding structural unit. Preferably, the two-dimensional modularized electromagnetic shielding structural unit has an open state and a contracted state, in the open state, the distance between the plurality of basic structural units is increased, the overall porosity is increased, in the contracted state, the plurality of basic structural units are mutually close, the overall porosity is reduced, and when the two-dimensional modularized electromagnetic shielding structural unit is fully unfolded or fully contracted, driving force is required to be applied in the X-axis direction and the Y-axis direction at the same time, so that the two-dimensional self-locking structural characteristic is formed. Preferably, the three-dimensional modularized electromagnetic shielding structural unit is formed by orthogonally arranging and connecting three basic structural units along the X-axis, Y-axis and Z-axis directions respectively. ) Preferably, in the expanding or contracting process of the three-dimensional modularized electromagnetic shielding structural unit, driving forces are required to be applied in three directions of an X axis, a Y axis and a Z axis at the same time, so that the three-dimensional collaborative self-locking structural characteristic is formed. Preferably, a plurality of the three-dimensional modularized electromagnetic shielding structural units are combined in a cubic array manner to form a minimum cell structural unit, and the minimum cell structural uni