An electromagnetic interference shielding cover plate for an industrial computer

Abstract

The utility model discloses a kind of shielding cover plate of industrial computer anti-electromagnetic interference, belong to anti-electromagnetic interference technical field;Including main body, main body is equipped with several heat dissipation holes, is equipped with connecting mechanism in four around, connecting mechanism includes the plugboard being set on the one side and upper side of main body, the other side and the insertion slot of lower side, the two sides of the end of plugboard far from main body are equipped with several elastic connecting blocks, the two sides of the end of insertion slot close to main body are equipped with connecting groove;By setting main body, high-frequency electromagnetic wave can be shielded again on the basis of existing, to strengthen the effect of electromagnetic shielding, and the heat dissipation hole set on main body will not affect the heat dissipation of industrial computer, simultaneously also will not reduce the effect of electromagnetic shielding, connecting mechanism makes several devices can be connected together, to be combined for use according to need.

Description

Technical Field

[0001] This utility model provides an electromagnetic interference shielding cover for industrial control computers, belonging to the field of electromagnetic interference protection technology. Background Technology

[0002] Industrial control computers, or industrial PCs for short, are computer systems designed specifically for industrial environments. They possess high reliability, stability, and the ability to adapt to harsh working conditions. Compared to ordinary commercial personal computers, industrial PCs differ significantly in hardware design, software configuration, and application scenarios to meet the needs of industrial automation and process control.

[0003] With the continuous improvement of industrial automation, industrial control computers (ICCs) have been widely used in various industrial scenarios as core control systems. However, due to the presence of a large number of electrical devices, wireless communication devices, and electromagnetic waves in the working environment, ICCs are highly susceptible to electromagnetic interference, which can lead to system performance degradation, data transmission errors, and even hardware damage. To address this challenge, existing solutions mainly include: metal casing shielding, conductive coatings, and grounding design. Although these measures have alleviated the electromagnetic interference problem to some extent, the shielding effect may still be unsatisfactory in complex electromagnetic environments. This is because, in strong electromagnetic fields, existing shielding methods are difficult to completely block high-frequency electromagnetic waves. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing shielding methods are insufficient to completely block high-frequency electromagnetic waves in strong electromagnetic field environments.

[0005] To solve the above problems, the proposed technical solution is as follows: an electromagnetic interference shielding cover for an industrial control computer, comprising a main body, a plurality of heat dissipation holes on the main body, and a connecting mechanism around the main body. The connecting mechanism includes an insert plate disposed on one side and above the main body, and a slot disposed on the other side and below the main body. A plurality of elastic connecting blocks are disposed on both sides of the end of the insert plate away from the main body, and connecting grooves are disposed on both sides of the end of the slot close to the main body.

[0006] As an improvement, the main body consists of, from the outside in, a top protective layer, a shielding layer, a wave-absorbing layer, and a bottom support layer;

[0007] As an improvement, the lower part of some heat dissipation holes is a straight hole, and the upper part is an angled hole;

[0008] As an improvement, the end of the insert plate away from the main body is provided with several stepped through grooves with a cross-section that is larger in the middle and smaller at both ends;

[0009] As an improvement, several connecting blocks are symmetrically arranged in pairs on both sides of the through groove;

[0010] As an improvement, one side of the connecting block corresponds to the middle part of the through groove, the other side protrudes from the through groove and the end gradually narrows towards the main body, and a spring is provided in the middle of the two symmetrical connecting blocks;

[0011] As an improvement, when the spring contracts, the outer ends of the connecting blocks on both sides do not protrude from the side of the insert plate;

[0012] As an improvement, the depth of the connecting groove is the same as the protruding part of the connecting block in the natural state of the spring, and the width of the connecting groove is the same as the lower end of the part of the connecting block protruding through the groove to the end of the insert plate away from the main body.

[0013] The beneficial effects of this utility model are:

[0014] By setting up the main body, high-frequency electromagnetic waves can be shielded again on the existing basis, thereby enhancing the electromagnetic shielding effect. Furthermore, the heat dissipation holes set on the main body will not affect the heat dissipation of the industrial control computer, nor will they reduce the electromagnetic shielding effect. The connecting mechanism allows several devices to be connected together, so that they can be combined and used as needed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an electromagnetic interference shielding cover for an industrial control computer according to the present invention.

[0016] Figure 2 This is a partial cross-sectional view of the main body of the electromagnetic interference shielding cover for an industrial control computer according to this utility model.

[0017] Figure 3 This is a cross-sectional view of the heat dissipation holes of a shielding cover for electromagnetic interference protection of an industrial control computer according to this utility model.

[0018] 1. Main body; 2. Heat dissipation holes; 3. Insert plate; 4. Slot; 5. Connecting block; 6. Connecting groove; 7. Through groove; 8. Spring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] according to Figure 1As shown in Figure 3: This utility model provides an electromagnetic interference shielding cover for an industrial control computer, comprising a main body 1; the main body 1 consists of, from the outside in, a top protective layer, a shielding layer, an absorbing layer, and a bottom support layer; the top protective layer can be made of metal sheets such as aluminum or steel, which have good conductivity and shielding performance, and as the outermost layer, provides physical protection, prevents external mechanical damage, and initially blocks some electromagnetic interference; the shielding layer can be made of highly conductive metal mesh or foil such as copper mesh or aluminum foil, or magnetic materials such as nickel-iron alloy can be used to enhance the shielding ability against low-frequency magnetic fields, and is the core shielding layer responsible for reflection. The shielding layer absorbs most of the incident electromagnetic waves, ensuring that the internal electronic components are protected from external electromagnetic interference. The material of the shielding layer can be absorbing materials such as ferrite and carbon-based composite materials. These materials can convert electromagnetic energy into heat energy and dissipate it. They are mainly used to absorb the remaining electromagnetic waves, reduce the secondary interference of reflected waves to the internal circuits, and further improve the overall shielding effect. The material of the bottom support layer can be high-strength and lightweight materials such as aluminum alloy and engineering plastics to ensure the stability and durability of the entire structure and provide solid support for other layers. It may also integrate some additional functions, such as mounting fixing points and grounding terminals.

[0021] The main body 1 is provided with several heat dissipation holes 2; the lower part of the several heat dissipation holes 2 is a straight hole and the upper part is an oblique hole; in this way, the heat dissipation holes 2 will not affect the heat dissipation of the industrial control computer, and at the same time will not reduce the electromagnetic shielding effect of the device.

[0022] The device is equipped with a connecting mechanism on all four sides. This mechanism includes an insert plate 3 positioned on one side and above the main body 1, and a slot 4 positioned on the other side and below. Several elastic connecting blocks 5 are located on both sides of the end of the insert plate 3 furthest from the main body 1. Connecting grooves 6 are located on both sides of the end of the slot 4 closest to the main body 1. Several stepped through-grooves 7, with a larger cross-section in the middle and smaller at both ends, are located on the end of the insert plate 3 furthest from the main body 1. The connecting blocks 5 are symmetrically arranged in pairs on both sides of the through-grooves 7. One side of each connecting block 5 corresponds to the middle of the through-groove 7, while the other side protrudes from the through-groove 7 and gradually tapers towards the main body 1 at its end. A spring 8 is located in the middle of the two symmetrical connecting blocks 5. When the spring 8 is contracted, the outer ends of the connecting blocks 5 on both sides do not protrude from the side of the insert plate 3. The depth of the connecting groove 6 is the same as the protruding portion of the connecting block 5 in its natural state, and the width of the connecting groove 6 is equal to the protruding portion of the connecting block 5 from the through-groove. The lower end of part 7 is the same as the end of the insert plate 3 away from the main body 1; in this way, by inserting the insert plate 3 of one main body 1 into the slot 4 of another main body 1, the gap of the main body 1 is formed into an arc shape after installation, which greatly reduces the impact of the gap on the electromagnetic shielding effect. By setting several elastic connecting blocks 5 and connecting grooves 6, after installation, the connecting block 5 of one main body 1 can be inserted into the connecting groove 6 of another main body 1, so that adjacent main bodies 1 can be connected together. When the two connecting blocks 5 on both sides of the same through groove 7 are squeezed, they will move towards the middle of the through groove 7, so that the spring 8 is under force. Then, when the two sides of the through groove 7 are respectively connected to the connecting groove 6, the spring 8 will automatically extend and push out the connecting blocks 5 on both sides, so that the part of the connecting block 5 protruding from the through groove 7 is stuck in the connecting groove 6, thereby fixing the two main bodies 1.

[0023] The principle of this invention is as follows: In use, a suitable number of main bodies 1 are selected as needed, and then the main bodies 1 are connected together to form a plate. A suitable number of plates are made and all plates are connected together as needed. By inserting the insert plate 3 of one main body 1 into the slot 4 of another main body 1, after insertion, the connecting block 5 of one main body 1 can be inserted into the connecting groove 6 of another main body 1, thus connecting adjacent main bodies 1 together. When the two connecting blocks 5 on both sides of the same through groove 7 are compressed, they will move towards the center of the through groove 7, putting the spring 8 under force. Then, when the two sides of the through groove 7 are respectively connected to the connecting groove 6, the spring 8 will automatically extend and push out the connecting blocks 5 on both sides, causing the part of the connecting block 5 protruding from the through groove 7 to be stuck in the connecting groove 6, thereby fixing the two main bodies 1. After installation, the gaps of the main bodies 1 form an arc shape, greatly reducing the impact of the gaps on the electromagnetic shielding effect, and also improving the heat dissipation holes. 2. It will not affect the heat dissipation of the industrial control computer, nor will it reduce the electromagnetic shielding effect of the device. The top protective layer of the main body 1 has good conductivity and shielding performance. As the outermost layer, it provides physical protection to prevent external mechanical damage and initially blocks some electromagnetic interference. The shielding layer can enhance the shielding ability against low-frequency magnetic fields. It is the core shielding layer and is responsible for reflecting and absorbing most of the incident electromagnetic waves, ensuring that the internal electronic components are not affected by external electromagnetic interference. The wave-absorbing layer can convert electromagnetic energy into heat energy and dissipate it. It is mainly used to absorb the remaining electromagnetic waves, reduce the secondary interference of reflected waves to the internal circuits, and further improve the overall shielding effect. The bottom support layer ensures the stability and durability of the entire structure and provides solid support for other layers. It may also integrate some additional functions, such as mounting fixing points, grounding terminals, etc. This allows for further shielding of high-frequency electromagnetic waves on the existing basis, thereby strengthening the electromagnetic shielding effect.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An electromagnetic interference shielding cover for an industrial control computer; characterized in that: Includes a main body (1), which has several heat dissipation holes (2) and a connecting mechanism around it. The connecting mechanism includes a plug plate (3) on one side and above the main body (1) and a slot (4) on the other side and below. The plug plate (3) has several elastic connecting blocks (5) on both sides of the end away from the main body (1), and the slot (4) has connecting grooves (6) on both sides of the end closer to the main body (1).

2. The electromagnetic interference shielding cover for an industrial control computer according to claim 1, characterized in that: The main body (1) consists of, from the outside to the inside, a top protective layer, a shielding layer, a wave-absorbing layer, and a bottom support layer.

3. The electromagnetic interference shielding cover for an industrial control computer according to claim 1, characterized in that: The lower part of some of the heat dissipation holes (2) is a straight hole, and the upper part is an oblique hole.

4. The electromagnetic interference shielding cover for an industrial control computer according to claim 1, characterized in that: The insert plate (3) has several stepped through grooves (7) with a cross-section that is larger in the middle and smaller at both ends at one end away from the main body (1).

5. The electromagnetic interference shielding cover for an industrial control computer according to claim 4, characterized in that: Several of the connecting blocks (5) are symmetrically arranged in pairs on both sides of the through groove (7).

6. The electromagnetic interference shielding cover for an industrial control computer according to claim 5, characterized in that: One side of the connecting block (5) corresponds to the middle part of the through groove (7), and the other side protrudes from the through groove (7) and gradually narrows at the end towards the main body (1). A spring (8) is provided in the middle of the two symmetrical connecting blocks (5).

7. The electromagnetic interference shielding cover for an industrial control computer according to claim 6, characterized in that: When the spring (8) contracts, the outer ends of the connecting blocks (5) on both sides do not protrude from the side of the insert plate (3).

8. The electromagnetic interference shielding cover for an industrial control computer according to claim 6, characterized in that: The depth of the connecting groove (6) is the same as the protruding part of the connecting block (5) in the natural state of the spring (8), and the width of the connecting groove (6) is the same as the lower end of the part of the connecting block (5) protruding through the through groove (7) to the end of the insert plate (3) away from the main body (1).

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