LRM framework case with shielding function

Abstract

The utility model discloses an LRM framework case with a shielding function, and relates to the technical field of severe environment resistant computers, a shielding structure is additionally arranged on the inner periphery of a plugging matching area of an LRM module and a rack, a conductive continuous boss is designed outside a casing of the LRM module, the boss is inserted into the shielding structure, and the shielding structure is arranged on the casing of the LRM module. The boss is connected with a shielding body in the shielding structure to achieve electric conduction, the shielding structure, the LRM module and a shell of the shielding structure form a conductive continuous cavity, and the electromagnetic shielding effect is achieved. According to the utility model, an elastic structure is adopted and a material with higher wear resistance is matched, so that the shielding structure of the module can be ensured not to fail in a severe environment after being plugged and unplugged for many times.

Description

Technical Field

[0001] This utility model relates to the field of computer technology for resistance to harsh environments, specifically to an LRM architecture chassis with shielding function. Background Technology

[0002] With the development of science and technology, military electronic equipment is becoming increasingly integrated, environmental adaptability requirements are becoming more stringent, and the requirements for chassis and structure are becoming more compact. Therefore, LRM architecture chassis, due to its high integration, high reliability, and ease of maintenance, is being increasingly used in the field of military electronic equipment.

[0003] Due to the specific application scenarios and architecture of LRM architecture chassis, the rack and modules are relatively independent, with modules interconnected to the rack via LRM connectors. Because military electronic equipment is typically used in harsh external environments, the LRM connectors, due to their complex structural design, have insufficient shielding effectiveness, and the risk of shielding failure is exacerbated by harsh environments such as vibration, shock, humidity, and salt spray. The LRM connector-rack mating area is usually a significant point of electromagnetic leakage risk.

[0004] To address the aforementioned issues, the industry currently employs a method of adding adhesive strip grooves around the LRM connector for electromagnetic compatibility shielding. However, this design suffers from problems such as easy aging of the adhesive strip and insecure fixation leading to easy detachment, resulting in low reliability and failing to fundamentally resolve the associated risks. Summary of the Invention

[0005] The technical objective of this utility model is to address the above-mentioned shortcomings by providing an LRM architecture chassis with shielding function, which can ensure that the shielding structure does not fail even after repeated module plugging and unplugging in harsh environments.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An LRM architecture chassis with shielding function adds a shielding structure to the outer periphery of the area where the LRM module and the rack are plugged in. The LRM module housing is designed with conductive continuous protrusions on the outside. The protrusions are inserted into the shielding structure and connected to the shielding body inside the shielding structure to achieve conductivity. The shielding structure, the LRM module and the housing of the shielding structure form a conductive continuous cavity to achieve electromagnetic shielding effect.

[0008] The LRM connector peripheral shielding structure designed in this utility model, by adopting an elastic structure and using materials with higher wear resistance, can ensure that the shielding structure does not fail even after repeated plugging and unplugging of the module in harsh environments.

[0009] Furthermore, the shielding structure includes a shell, a cover plate, an elastomer, and a shielding body;

[0010] The shell is designed with a closed groove structure, and the elastomer and shield are placed in the middle of the groove and pressed and fixed by the cover plate;

[0011] When the shield is subjected to force, it compresses the elastomer, causing the elastomer to shift, thus ensuring that the LRM module boss can be smoothly inserted into the shield structure; at the same time, the shield is tightly fitted to the LRM module boss by the rebound force of the elastomer, thus ensuring conductive contact.

[0012] Furthermore, both the housing and the cover are made of metal and have good electrical conductivity.

[0013] Furthermore, the elastomer is made of a material with good elasticity, including silicone, springs, leaf springs, etc.

[0014] Furthermore, the elastomer is made of rigid silicone material and is formed by die cutting, resulting in a continuous elastomer without breakage.

[0015] Furthermore, the shielding body is made of a metal material with good wear resistance and conductivity.

[0016] Furthermore, the shielding body uses 2mm diameter steel balls, which are evenly arranged in the groove of the shell and pressed into contact with the elastomer. The surface of the shielding body is carburized to increase wear resistance.

[0017] Furthermore, the elastomer is installed on one side of the bottom of the groove in the housing and fits against the bottom of the groove; the shield is installed in contact with the elastomer and fixed by the cover plate.

[0018] Compared with the prior art, the LRM architecture chassis with shielding function of this utility model has the following advantages:

[0019] (1) The LRM architecture chassis with shielding function proposed in this utility model can effectively solve the electromagnetic leakage risk at the LRM connector of the chassis.

[0020] (2) The LRM architecture chassis with shielding function proposed in this utility model can effectively avoid the risks of aging and falling off of the adhesive strips in the existing solutions, and improve the reliability of the equipment.

[0021] (3) The shielding structure used in the LRM architecture chassis with shielding function proposed in this utility model is simple and inexpensive. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the LRM architecture chassis structure with shielding function provided in this embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the shielding structure provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the LRM module and boss provided in an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram showing the LRM module, rack, and shielding structure being plugged into each other according to an embodiment of this utility model.

[0026] In the diagram, 1 is the LRM rack, 2 is the shielding structure, 3 is the LRM module, 21 is the shielding structure cover, 22 is the shielding structure housing, 23 is the shielding body, 24 is the elastomer, 31 is the LRM module housing, 32 is the LRM connector, 33 is the LRM module positioning pin, and 34 is the LRM module boss. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] This utility model embodiment provides an LRM architecture chassis with shielding function. A shielding structure is added to the periphery of the area where the LRM module and the rack are plugged in. Conductive continuous bosses are designed on the outside of the LRM module housing. The bosses are inserted into the shielding structure to form a shielded cavity with conductive continuity with the shielding structure.

[0029] The shielding structure includes a shell, a cover plate, an elastomer, and a shielding body.

[0030] The shell is designed with a closed groove structure, and the elastomer and shield are placed in the middle of the groove and pressed and fixed by the cover plate;

[0031] The elastomer is installed on one side of the groove bottom of the housing, fitting snugly against the groove bottom; the shield is installed in contact with the elastomer and fixed by a cover plate. When the shield is subjected to force, it compresses the elastomer, causing the elastomer to shift, ensuring that the module boss can be smoothly inserted; at the same time, the shield is tightly fitted to the module boss by the rebound force of the elastomer, ensuring conductive contact.

[0032] Both the housing and the cover are made of metal and have good electrical conductivity.

[0033] The elastomer is made of materials with good elasticity, such as silicone, springs, and leaf springs.

[0034] The shielding body is made of a metal material with good wear resistance and good conductivity.

[0035] The boss connects to the internal shielding body of the shielding structure to achieve conductivity. The shielding structure, the LRM module, and the shell of the shielding structure form a continuous conductive cavity to achieve electromagnetic shielding.

[0036] The LRM connector peripheral shielding structure designed in this utility model, by adopting an elastic structure and using materials with higher wear resistance, can ensure that the shielding structure does not fail even after repeated plugging and unplugging of the module in harsh environments.

[0037] The following is in conjunction with the appendix Figure 1-4 As shown, this LRM architecture chassis is described in further detail.

[0038] like Figure 1 As shown, by adding a shielding structure 2 around the area where the LRM module 3 and the rack 1 are plugged in, a conductive continuous boss 34 is designed on the outside of the module housing. The boss is inserted into the shielding structure 2 and connected to the shielding body inside the shielding structure (in this example, a steel column with a diameter of 2mm is used as the shielding body) to achieve conductivity. The shielding structure 2, the LRM module 3 and the housing form a conductive continuous cavity to achieve electromagnetic shielding effect.

[0039] like Figure 2 As shown, the shielding structure consists of a shell 22, a cover plate 21, an elastomer 24, and a shield 23. The shell 22 is designed with a closed groove structure. The elastomer 24 and the shield 23 are placed in the middle of the groove and pressed together by the cover plate 21. When the shield 23 is subjected to force, it squeezes the elastomer 24, causing the elastomer 24 to displace and ensuring that the module boss 34 can be smoothly inserted. At the same time, the shield 23 is tightly fitted to the module boss by the rebound force of the elastomer 24, ensuring conductive contact.

[0040] In this embodiment, both the housing 22 and the cover plate 21 are made of metal and have good electrical conductivity.

[0041] In this embodiment, the elastomer 24 is made of materials with good elasticity such as silicone, spring, and leaf spring. In this example, the elastomer 24 is made of hard silicone and is formed by die cutting, so that the elastomer 24 is continuous and without breakage.

[0042] In this embodiment, the shield 23 is made of a metal material with good wear resistance and conductivity. In this example, 2mm diameter steel balls are evenly arranged in the groove of the shell 22 and pressed into contact with the elastic body 24. The surface of the shield 23 is carburized to increase wear resistance.

[0043] Figure 3 The diagram shows the LRM module and its boss. The specific structure for achieving conductivity by connecting the boss of LRM module 3 to the internal shield of shielding structure 2 is shown below. Figure 4 As shown.

[0044] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

[0045] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

Claims

1. A LRM architecture case with shielding function, characterized in that, The shielding structure is added to the periphery of the LRM module and the rack plug-in area, a conductive continuous boss is designed on the outside of the LRM module shell, the boss is inserted into the inside of the shielding structure, the boss is connected with the shielding body in the inside of the shielding structure to realize conduction, the shielding structure and the LRM module and the shell of the shielding structure form a conductive continuous cavity to achieve the electromagnetic shielding effect.

2. The LRM chassis with shielding function according to claim 1, characterized in that, The shielding structure comprises a shell, a cover plate, an elastic body and a shielding body. The shell is designed with a closed groove structure, the elastic body and the shielding body are placed in the middle position of the groove, and are fixed by the cover plate. When the shielding body is stressed, the elastic body is extruded to make the elastic body displace, so that the boss of the LRM module can be smoothly inserted into the shielding structure; meanwhile, the shielding body is tightly combined with the boss of the LRM module under the rebound force of the elastic body, so that the conductive contact is ensured.

3. The LRM chassis with shielding function according to claim 2, characterized in that, The shell and the cover plate are made of metal materials and have conductivity.

4. The LRM chassis with shielding function according to claim 2, characterized in that, The elastic body is made of elastic materials, including silica gel, spring or reed.

5. The LRM chassis with shielding function according to claim 2, characterized in that, The elastic body is made of hard silica gel material and is formed by die cutting, and the elastic body is continuous and has no fracture.

6. The LRM chassis with shielding function according to claim 2, characterized in that, The shielding body is made of metal materials with wear resistance and conductivity.

7. The LRM chassis with shielding function according to claim 2 or 5 or 6, characterized in that, The shielding body is made of 2mm diameter steel balls, which are uniformly arranged in the groove of the shell and are extruded with the elastic body, and the surface of the shielding body is carburized to increase the wear resistance.

8. The LRM chassis with shielding function according to claim 7, characterized in that, The elastic body is installed on one side of the groove bottom of the shell and is combined with the groove bottom, and the shielding body is installed in contact with the elastic body and is fixed by the cover plate.

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