Electromagnetic shielding case sealing structure

Abstract

The utility model relates to a sealing structure technical field especially relates to a kind of electromagnetic shielding machine case sealing structure. Its technical scheme includes machine case and machine cover, further include the sealing strip of setting in the connecting place of machine case and machine cover, recess is opened in the sealing strip, the inside fixed setting of recess has press strip;Sealing ring is clamped and is set to the inner wall of machine case, the sealing ring is between machine case and machine cover, the outer wall of sealing ring is opened and has pressure groove. The utility model can effectively fill up the tiny gap of single sealing element due to elastic recession, permanent deformation, reduce electromagnetic signal leakage, improve the overall electromagnetic shielding effect of machine case.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, and in particular to an electromagnetic shielding enclosure sealing structure. Background Technology

[0002] Magnetic shielding enclosures are indispensable key equipment in fields such as electronics, information technology, communications, aerospace, and precision instruments. Their core function is to block electromagnetic interference signals from the external environment from entering the enclosure through specific structural designs and shielding materials. Simultaneously, they prevent the leakage of electromagnetic radiation generated by sensitive electronic components and precision instruments during operation, thereby ensuring stable operation of equipment in complex electromagnetic environments and avoiding data errors, equipment failures, and even safety accidents caused by electromagnetic interference. They are widely used in radar systems, communication base stations, industrial control equipment, and aerospace electronic equipment. Existing electromagnetic shielding enclosures mostly use a single sealing strip or sealing ring for sealing. These seals are often made of elastic materials, which are prone to elastic decay and permanent deformation under long-term compression, and are difficult to recover after deformation. This results in tiny gaps at the contact surfaces between the seal and the enclosure / cover, allowing electromagnetic signals to leak and ultimately significantly reducing the shielding effect. Therefore, this invention proposes a new sealing structure for an electromagnetic shielding enclosure. Utility Model Content

[0003] The purpose of this invention is to address the problem that in the background technology, sealing is often achieved using a single sealing strip or sealing ring. These seals are mostly made of elastic materials, which are prone to elastic decay and permanent deformation under long-term compression. Moreover, the deformation is not easy to recover, which leads to tiny gaps in the contact surface between the seal and the chassis and cover. These gaps can cause electromagnetic signal leakage, ultimately resulting in a significant decrease in the shielding effect of the chassis. This invention proposes an electromagnetic shielding chassis sealing structure.

[0004] The technical solution of this utility model is as follows: An electromagnetic shielding chassis sealing structure includes a chassis and a cover, and further includes: a sealing strip disposed at the connection between the chassis and the cover, the sealing strip having a groove, and a pressure strip fixedly disposed inside the groove; a sealing ring snapped onto the inner wall of the chassis, the sealing ring being located between the chassis and the cover, and a pressure groove being disposed on the outer wall of the sealing ring.

[0005] Optionally, the inner wall of the chassis is provided with a slot, and a locking block is provided inside the slot, the locking block being fixedly connected to the sealing ring.

[0006] Optionally, the sealing strip is configured with an "L" shape.

[0007] Optionally, a side sealing strip is fixedly provided on one side of the sealing strip, and a plurality of sealing protrusions are fixedly provided on the other side of the sealing strip.

[0008] Optionally, the side sealing strip is configured as a right-angled trapezoidal structure.

[0009] Optionally, a locking bolt is provided between the chassis and the cover.

[0010] Optionally, the sealing ring may be hollow inside.

[0011] Optionally, the card slot and card block are configured with an inverted triangular structure.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] This utility model forms a double sealing structure by using grooves, sealing strips, and pressure strips, as well as a hollow sealing ring and pressure groove that are snapped into the inner wall of the chassis. The hollow sealing ring can apply pressure to the sealing strip according to its own elasticity, effectively filling the tiny gaps caused by the elastic decay and permanent deformation of a single sealing component, reducing electromagnetic signal leakage, and improving the overall electromagnetic shielding effect of the chassis.

[0014] Furthermore, this utility model enhances the stability of the connection between the sealing ring and the chassis by opening an inverted triangular slot on the inner wall of the chassis, and engaging an inverted triangular block that is fixedly connected to the sealing ring within the slot, thereby preventing the sealing element from shifting during long-term use and ensuring the stability of the sealing structure. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a sealed electromagnetic shielding enclosure.

[0016] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0017] Figure 3 This is a schematic diagram of the sealing strip structure;

[0018] Figure 4 This is a schematic diagram of the sealing ring structure;

[0019] Figure 5 yes Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure label:

[0021] 1. Chassis; 2. Cover; 3. Sealing strip; 4. Groove; 5. Pressure strip; 6. Sealing ring; 7. Pressure groove; 8. Slot; 9. Locking block; 10. Side sealing strip; 11. Sealing protrusion; 12. Locking bolt. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0023] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example

[0028] like Figures 1 to 4As shown, the electromagnetic shielding enclosure sealing structure proposed in this utility model includes an enclosure 1 and a cover 2. A locking bolt 12 is provided between the enclosure 1 and the cover 2, which can stably connect the enclosure 1 and the cover 2. It also includes: a sealing strip 3 provided at the connection between the enclosure 1 and the cover 2. The sealing strip 3 is designed with an "L" shape, which can increase the contact area between the sealing strip 3 and the enclosure 1 and the cover 2, thereby improving the sealing performance. A side sealing strip 10 is fixedly provided on one side of the sealing strip 3. The side sealing strip 10 is designed with a right-angled trapezoidal structure, which can increase the tightness between the sealing strip 3 and the enclosure 1. Multiple sealing protrusions 11 are fixedly provided on the other side of the sealing strip 3. The multiple sealing protrusions 11 are arranged in an equidistant array on the sealing strip 3, which can increase the sealing performance between the sealing strip 3 and the cover 2. A groove 4 is provided on the sealing strip 3. A pressure strip 5 is fixedly provided inside the groove 4.

[0029] like Figures 3 to 5 As shown, a sealing ring 6 is installed on the inner wall of the chassis 1 by means of a slot 8 and a block 9. The interior of the sealing ring 6 is hollow, which can improve the recovery effect of the sealing ring 6 after being squeezed. The sealing ring 6 is located between the chassis 1 and the cover 2. The inner wall of the chassis 1 has a slot 8, and a block 9 is installed inside the slot 8. The slot 8 and the block 9 are set in an inverted triangular structure. The block 9 is fixedly connected to the sealing ring 6, which can stably limit the position of the sealing ring 6 and facilitate replacement. The outer wall of the sealing ring 6 has a pressure groove 7, and the pressure groove 7 can interlock with the pressure strip 5 inside the groove 4, which can make the sealing ring 6 provide pressure to the sealing strip 3, making it more airtight.

[0030] The working principle of this embodiment is as follows: First, the inverted triangular structure slot 8 pre-set on the inner wall of the chassis 1 is aligned, and the inverted triangular structure block 9, which is fixedly connected to the sealing ring 6, is precisely embedded into the slot 8. Next, the "L"-shaped sealing strip 3 is attached to the connection between the chassis 1 and the cover 2. The side sealing strip 10 on one side of the sealing strip 3 can fill the gap at the connection with the chassis 1, while the multiple sealing protrusions 11 on the other side of the sealing strip 3 can form a tight contact with the surface of the cover 2.

[0031] At the same time, the pressure strip 5 on the sealing strip 3 and the pressure groove 7 on the sealing ring 6 interlock with each other, and cover the machine cover 2 onto the machine housing 1, and fasten it by the locking bolt 12 set between the machine housing 1 and the machine cover 2.

[0032] Under the force of the locking bolt 12, the cover 2 exerts uniform pressure on the sealing strip 3 and the sealing ring 6. Due to the hollow design inside, the groove 7 on the sealing ring 6 and the pressure strip 5 on the sealing strip 3 are pressed together tightly. Even if there is slight elastic decay, it can fill the possible small gaps through its own elastic compensation ability, preventing the sealing strip 3 from being permanently deformed due to long-term stress and avoiding the formation of gaps.

[0033] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An electromagnetic shielding case seal structure comprising a case (1) and a cover (2), characterized by, Also includes: A sealing strip (3) is provided at the connection between the chassis (1) and the cover (2). A groove (4) is provided on the sealing strip (3), and a pressure strip (5) is fixedly provided inside the groove (4). A sealing ring (6) is snapped onto the inner wall of the chassis (1). The sealing ring (6) is located between the chassis (1) and the cover (2). A pressure groove (7) is provided on the outer wall of the sealing ring (6).

2. The electromagnetic shielding enclosure seal structure of claim 1, wherein, The inner wall of the chassis (1) is provided with a slot (8), and a locking block (9) is provided inside the slot (8). The locking block (9) is fixedly connected to the sealing ring (6).

3. The electromagnetic shielding enclosure seal of claim 1, wherein, The sealing strip (3) is configured with an "L" shape.

4. The electromagnetic shielding enclosure seal of claim 1, wherein, A side sealing strip (10) is fixedly provided on one side of the sealing strip (3), and a plurality of sealing protrusions (11) are fixedly provided on the other side of the sealing strip (3).

5. The electromagnetic shielding enclosure seal of claim 4, wherein, The side sealing strip (10) is a right-angled trapezoidal structure.

6. The electromagnetic shielding enclosure seal structure of claim 1, wherein, A locking bolt (12) is provided between the chassis (1) and the cover (2).

7. The electromagnetic shielding enclosure seal of claim 1, wherein, The interior of the sealing ring (6) is hollow.

8. The electromagnetic shielding enclosure seal structure of claim 2, wherein, The slot (8) and the block (9) are configured as an inverted triangle.

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