Portable shielding cabinet made of lightweight composite material
By adopting a lightweight composite material design, including a high-strength aluminum alloy frame, engineering plastic connectors, and conductive rubber strips, the problem of heavy metal shielding cabinets causing inconvenience in handling has been solved, achieving improved portability and electromagnetic shielding performance, making it suitable for mobile and temporary use scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing metal shielded cabinets are heavy, making them inconvenient to move or temporarily set up, and consuming a lot of manpower and resources.
The design employs a lightweight composite material system consisting of a high-strength aluminum alloy frame, corner connectors made of high-strength engineering plastics, conductive rubber strips, honeycomb metal shielding ventilation panels, and hollow structure carrying panels. Combined with casters and folding handles, it achieves both lightweight design and portability.
Significantly reduces cabinet weight, improves portability and electromagnetic shielding performance, ensures equipment stability and electromagnetic shielding effectiveness during movement, and is suitable for scenarios such as field exploration and emergency communication.
Smart Images

Figure CN224097973U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a shielding cabinet, in particular to a portable shielding cabinet of light weight composite material belongs to shielding cabinet technical field. BACKGROUND
[0002] With the wide application of electronic equipment, the demand for electromagnetic shielding is increasing. As an important electromagnetic shielding equipment, the shielding cabinet can effectively prevent the internal electronic equipment from being interfered by the external electromagnetic interference, and can also avoid the electromagnetic radiation generated by the internal equipment from affecting the outside world. In some scenes that need to be moved or temporarily used, such as field exploration, emergency communication, etc., the portability of the shielding cabinet is highly required.
[0003] In the prior art, such as the electromagnetic shielding cabinet with multiple protection capabilities disclosed in the announcement No. CN222621481U, a fan can blow air into the shielding cabinet through the setting of the air pipe and the opening, and the inside of the movable door is provided with a heat dissipation opening for air exhaust, so that the inside of the shielding cabinet is ventilated and heat dissipated. The above-mentioned prior art scheme has the following disadvantages: the above-mentioned electromagnetic shielding cabinet is constructed with a main body structure of metal material. Although metal has excellent electromagnetic shielding performance, its own weight is large, which makes the carrying of the traditional shielding cabinet extremely inconvenient in the scene that needs to be frequently moved or temporarily built, consumes a lot of manpower and material resources, and seriously limits its application range. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problem that the above-mentioned device is constructed with a main body structure of metal material, metal has excellent electromagnetic shielding performance, but its own weight is large, which makes the carrying of the traditional shielding cabinet extremely inconvenient in the scene that needs to be frequently moved or temporarily built, and consumes a lot of manpower and material resources, and provides a portable shielding cabinet of light weight composite material.
[0005] The utility model realizes the above-mentioned purpose through the following technical scheme: a portable shielding cabinet of light weight composite material, which comprises a frame main body, the frame main body adopts a frame structure, the frame is spliced by high-strength aluminum alloy profiles, the corners of the frame main body are connected through corner connecting pieces, the corner connecting pieces are made of high-strength engineering plastics, the outer side of the frame main body is provided with cabinet coaming, the bottom of the frame main body is provided with universal wheels with brake function, and the cabinet coaming on one side is rotationally connected with a sealing door.
[0006] As a further scheme of the utility model, the contact part of the sealing door and the cabinet coaming and the contact part of the cabinet coaming and the frame main body are both provided with conductive rubber strips, and the sealing door is provided with a viewing window.
[0007] As a further scheme of the utility model: the outer side of the cabinet coaming is provided with a folding buckle and a ventilation plate, and the ventilation plate is a honeycomb metal shielding ventilation plate.
[0008] As a further scheme of the utility model: the inner surfaces of the cabinet coaming and the sealing door are both provided with metal shielding nets.
[0009] As a further scheme of the utility model: the hollow structure fixing plate is installed in the cabinet coaming, the surface of the fixing plate is provided with a sliding groove, a sliding block is slidably connected in the sliding groove, a loading plate is installed on one side of the sliding block, the loading plate is a concave structure, and the loading plate has multiple specifications and sizes.
[0010] As a further scheme of the utility model: the bottom surface of the loading plate is provided with a fixing block, a T-shaped insertion rod is slidably connected to the surface of the fixing block, the outer surface of the T-shaped insertion rod is integrally formed with a ring protrusion, a spring is sleeved on the surface of the T-shaped insertion rod and located between the fixing block and the ring protrusion, and multiple positioning holes are equidistantly formed in the surface of the fixing plate.
[0011] The utility model discloses the beneficial effects are:
[0012] The utility model discloses the cooperation of frame main body, angle connecting piece, universal wheel, conductive rubber strip, folding buckle, ventilation plate, loading plate, positioning hole, T-shaped insertion rod and spring and other structure's matching use, frame main body adopts high -strength aluminium alloy section splicing, and the density of aluminium alloy is lower than traditional metal material, and the weight is lighter, and the overall weight of cabinet is greatly reduced, and the frame formula structure design is cooperated, improves the portability while guaranteeing the structure firm, whether it is hand -held, handling or moves with the help bottom universal wheel, and it is more relaxed and labor -saving, and angle connecting piece adopts high -strength engineering plastics, and compared with metal connecting piece, further reduces the weight, and simultaneously because its good insulating property, can prevent that frame produces electromagnetic conduction, and the electromagnetic shielding performance of cabinet is optimized.
[0013] The hollow structure fixing plate installed in the cabinet coaming significantly reduces the weight while guaranteeing the structural strength, multiple specifications and sizes of the loading plate are installed on the fixing plate, the placing demand of different equipment can be satisfied, and the hollow structure of the fixing plate does not affect the supporting stability of the loading plate, and the light weight degree of the cabinet is further improved. ACCURACY OF DRAWINGS
[0014] Figure 1 It is the overall structure schematic diagram of the utility model;
[0015] Figure 2 It is the side view structure schematic diagram of the utility model Figure 1 .
[0016] Figure 3 It is the structure schematic diagram of the loading plate and the fixing plate of the utility model.
[0017] Figure 4 It is the structure schematic view of positioning hole, sliding block and fixed plate in the utility model;
[0018] Figure 5 It is the structure schematic view of frame main body and angle connecting piece in the utility model;
[0019] Figure 6 It is the structure enlarged view of A in the utility model Figure 4
[0020] In the drawing: 1, frame main body; 2, angle connecting piece; 3, cabinet coaming; 4, universal wheel; 5, conductive rubber strip; 6, sealing door; 7, visual window; 8, folding buckle; 9, ventilation plate; 10, fixed plate; 11, sliding groove; 12, sliding block; 13, object plate; 14, positioning hole; 15, fixed block; 16, T-shaped insertion rod; 17, ring convex; 18, spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model. Embodiment one
[0022] As shown in Figures 1 to 6 A kind of portable shielding cabinet of light weight composite material, including frame main body 1, frame main body 1 adopts frame structure, and frame is spliced by high-strength aluminum alloy section bar, and the corner of frame main body 1 is connected by angle connecting piece 2, and angle connecting piece 2 is made of high-strength engineering plastic, and the outside of frame main body 1 is equipped with cabinet coaming 3, and the bottom of frame main body 1 is equipped with universal wheel 4 with brake function, and the cabinet coaming 3 of one side is rotatably connected with sealing door 6.
[0023] Frame main body 1 is spliced by high-strength aluminum alloy section bar, and compared with traditional metal material, aluminum alloy is lower in density, lighter in weight, greatly reduces the overall weight of cabinet, cooperates with frame structure design, while ensuring structural stability, realizes the promotion of portability, whether it is hand-held, handling or moves by the aid of bottom universal wheel 4, it is more relaxed and labor-saving, and angle connecting piece 2 is made of high-strength engineering plastic, compared with metal connecting piece, further reduces weight, and at the same time, due to its good insulation, electromagnetic conduction of frame can be prevented, and the electromagnetic shielding performance of cabinet is optimized, and cabinet coaming 3 is installed on the outside of frame main body 1, and sealing door 6 is jointly constructed to form a closed space, effectively blocks external electromagnetic interference.
[0024] Further, the contact part of the sealing door 6 and the cabinet panel 3 and the contact part of the cabinet panel 3 and the frame body 1 are provided with conductive rubber strips 5, and the sealing door 6 is provided with a viewing window 7.
[0025] The conductive rubber strips 5 form a continuous and good conductive sealing structure at the contact part of the sealing door 6 and the cabinet panel 3 and the contact part of the cabinet panel 3 and the frame body 1, which can effectively block the leakage and invasion of electromagnetic signals from these joint parts. The existence of the viewing window 7 can ensure the safe operation of the equipment and enable the staff to grasp the equipment status at any time and discover potential problems in time, thereby further improving the stability and reliability of the equipment.
[0026] Further, the outer side of the cabinet panel 3 is provided with a folding buckle 8 and a ventilation plate 9, and the ventilation plate 9 is a honeycomb-shaped metal shielding ventilation plate.
[0027] The folding buckle 8 can easily carry the cabinet and facilitate short-distance movement, thereby greatly improving the portability and operation flexibility of the cabinet in various scenes. At the same time, the honeycomb-shaped structure of the metal material of the ventilation plate 9 can effectively block external electromagnetic interference and prevent electromagnetic signals from entering the cabinet through the ventilation opening, thereby interfering with the operation of the equipment and achieving a perfect balance between ventilation and shielding performance, thereby ensuring the operation of the equipment in a suitable temperature and stable electromagnetic environment. Embodiment Two
[0028] On the basis of Embodiment One, the following improvements are made:
[0029] Further, the inner surfaces of the cabinet panel 3 and the sealing door 6 are uniformly provided with metal shielding nets.
[0030] The metal shielding nets, the conductive rubber strips 5, and the honeycomb-shaped metal shielding ventilation plate 9 work together to shield external electromagnetic signals in all directions and effectively block the interference of nearby base station signals, thereby ensuring accurate data transmission.
[0031] Further, the cabinet panel 3 is internally provided with a hollow structure fixing plate 10, the surface of the fixing plate 10 is provided with a sliding groove 11, the sliding groove 11 is slidably connected with a sliding block 12, one side of the sliding block 12 is provided with a loading plate 13, the loading plate 13 is an inner recess structure, and the loading plate 13 has multiple sizes.
[0032] The hollow structure fixing plate 10 can ensure the structural strength while reducing its own weight, and the multiple sizes of the loading plate 13 can meet the placement requirements of different equipment. The inner recess structure of the loading plate 13 provides a more suitable placement space for the equipment and can effectively prevent the equipment from being displaced during the movement of the cabinet.
[0033] Further, the bottom surface of the carrier plate 13 is provided with a fixing block 15, the surface of the fixing block 15 is slidably connected with a T-shaped insertion rod 16, the outer surface of the T-shaped insertion rod 16 is integrally formed with a ring protrusion 17, the surface of the T-shaped insertion rod 16 and located between the fixing block 15 and the ring protrusion 17 is sleeved with a spring 18, and the surface of the fixing plate 10 is provided with a plurality of positioning holes 14 at equal intervals.
[0034] After the equipment is placed on the carrier plate 13, the T-shaped insertion rod 16 always has a tendency to insert into the positioning hole 14 under the action of the spring 18, when the position of the carrier plate 13 is adjusted, the T-shaped insertion rod 16 can be accurately inserted into the corresponding positioning hole 14, and cooperated with the concave structure of the carrier plate 13, the equipment can be effectively prevented from displacement due to bumping and shaking during the movement of the cabinet, and the equipment can be stably placed, and the positions between the carrier plates 13 can be adjusted according to the size of the equipment, the carrier plate 13 can be moved up and down by pulling the T-shaped insertion rod 16 to compress the spring 18, so that the T-shaped insertion rod 16 is separated from the positioning hole 14, and then the T-shaped insertion rod 16 is reinserted into the positioning hole 14 under the action of the spring 18, so that the fixing is convenient and fast.
[0035] Working principle: since the cabinet frame main body 1 is made of high-strength aluminum alloy profile, and the cabinet coaming 3 is made of carbon fiber reinforced resin-based composite material, the overall weight is greatly reduced, and the user can easily pass through, fold the buckle hand 8 to lift the whole cabinet, place it in the transport bag, and transport it, after arriving at the destination, only need to push the universal wheel 4 with brake function at the bottom of the cabinet, can quickly move the cabinet to the ideal position, without consuming too much physical strength and energy, greatly improving the equipment deployment efficiency in complex outdoor environment;
[0036] Then, the sealing door 6 connected with the cabinet coaming 3 is opened, the conductive rubber strip 5 at the contact part of the sealing door 6 and the cabinet coaming 3 ensures good shielding and sealing performance, and the metal shielding net uniformly distributed on the inner surfaces of the cabinet coaming 3 and the sealing door 6 further strengthens the shielding effect, according to the size of the stored equipment, the user can select the appropriate one from the multiple specifications and sizes of the concave structure carrier plate 13, adjust the position of the carrier plate 13 by sliding the sliding block 12 in the sliding groove 11 of the fixing plate 10, stably place the equipment on the carrier plate 13, the fixing block 15 and the T-shaped insertion rod 16 on the bottom surface of the carrier plate 13 cooperate with the positioning hole 14 on the fixing plate 10, and the carrier plate 13 can be accurately positioned according to the height of the equipment and other requirements, and the stability of the equipment placement is enhanced, the equipment cable is connected, the sealing door 6 is closed, and the cabinet immediately builds a stable environment for the internal electronic equipment to be free from external electromagnetic interference, and the honeycomb-shaped metal shielding ventilation plate 9 installed on the outer side of the cabinet coaming 3 effectively blocks the external electromagnetic interference while ensuring good ventilation and heat dissipation and maintaining the normal working temperature of the internal medical equipment.
[0037] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.
[0038] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single preferred embodiment, it being understood that this single preferred embodiment can exhibit not every aspect or feature of the present specification. The specification can also be described in terms of a generic statement that the disclosure can include one, some, or all of a list of features. It is further understood that the specification is to be considered as a whole and not with reference to a single feature or design element alone.
Claims
1. A portable shielded cabinet made of lightweight composite material, characterized in that: The frame includes a main body (1), which adopts a frame structure. The frame is spliced from high-strength aluminum alloy profiles. The corners of the main body (1) are connected by corner connectors (2). The corner connectors (2) are made of high-strength engineering plastic. The outer side of the main body (1) is equipped with a cabinet enclosure (3). The bottom of the main body (1) is equipped with casters (4) with brake function. A sealed door (6) is rotatably connected to one side of the cabinet enclosure (3).
2. The portable shielded cabinet made of lightweight composite material according to claim 1, characterized in that: Conductive rubber strips (5) are provided at the contact points between the sealed door (6) and the cabinet enclosure (3) and between the cabinet enclosure (3) and the frame body (1), and a viewing window (7) is provided on the sealed door (6).
3. The portable shielded cabinet made of lightweight composite material according to claim 1, characterized in that: The outer side of the cabinet enclosure (3) is equipped with a folding handle (8) and a ventilation panel (9), the ventilation panel (9) being a honeycomb metal shielding ventilation panel.
4. The portable shielded cabinet made of lightweight composite material according to claim 1, characterized in that: The inner surfaces of the cabinet enclosure (3) and the sealing door (6) are all covered with metal shielding mesh.
5. The portable shielded cabinet made of lightweight composite material according to claim 3, characterized in that: The cabinet enclosure (3) has a hollow structure fixing plate (10) installed inside. The surface of the fixing plate (10) is provided with a sliding groove (11). A slider (12) is slidably connected in the sliding groove (11). A carrying plate (13) is installed on one side of the slider (12). The carrying plate (13) has a concave structure and comes in multiple sizes.
6. The portable shielded cabinet made of lightweight composite material according to claim 5, characterized in that: A fixing block (15) is installed on the bottom surface of the loading plate (13). A T-shaped plug (16) is slidably connected to the surface of the fixing block (15). An annular protrusion (17) is integrally formed on the outer surface of the T-shaped plug (16). A spring (18) is sleeved on the surface of the T-shaped plug (16) between the fixing block (15) and the annular protrusion (17). A plurality of positioning holes (14) are equally spaced on the surface of the fixing plate (10).