Shell structure for electromagnetic shielding

Abstract

The utility model discloses a housing structure used for electromagnetic shielding, comprising a bottom plate, the top surface of which is provided with a placing groove; the cover body assembly comprises a protection cover and a shielding cover, the protection cover is arranged on the bottom plate in a covering mode, supporting structures are arranged on the two sides of the inner wall of the protection cover, the shielding cover is arranged between the opposite sides of the two supporting structures in a sliding mode, and a stroke space is reserved between the inner wall of the protection cover and the top face of the shielding cover; a driving rod is fixedly connected to the center of the top surface of the shielding cover, a driving knob is rotatably connected to the top surface of the protection cover, a driving hole for threaded connection of the driving rod is formed in the driving knob in a penetrating manner, and the shielding cover is inserted into the placement groove. According to the shell structure for electromagnetic shielding, the electromagnetic shielding performance of the shell structure is ensured, the protection function of the shielding cover is added, and meanwhile, the protection cover provides effective protection for electronic equipment in the placement groove when the shielding cover is disassembled.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding equipment technology, and in particular to a shell structure for electromagnetic shielding. Background Technology

[0002] With the rapid development of electronic technology, more and more electronic or electrical products are emerging in various engineering applications, making the entire working environment an electromagnetic field. To ensure that electronic or electrical components function properly in this environment, they need sufficient electromagnetic compatibility. Therefore, these components are typically placed in a housing structure with electromagnetic shielding capabilities. This housing structure usually has an electromagnetic shielding cover. However, the electromagnetic shielding cover lacks corresponding protective devices on the outside, making it easily damaged by impacts. Furthermore, periodic maintenance of electronic equipment requires removing the electromagnetic shielding, exposing the electronic equipment directly to the external environment. External debris may fall directly onto the electronic equipment, affecting its normal operation. Utility Model Content

[0003] The purpose of this utility model is to design a shell structure for electromagnetic shielding to overcome the shortcomings of the above-mentioned technology. The protective cover and the shielding cover work together to ensure the electromagnetic shielding performance of the shell structure and also increase the protection function of the shielding cover. At the same time, when the shielding cover is disassembled, the protective cover provides effective protection for the electronic equipment placed in the slot.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a shell structure for electromagnetic shielding, comprising:

[0005] The base plate has mating parts on both sides and a placement groove on the top surface.

[0006] The enclosure assembly includes a protective cover and a shielding cover. The protective cover is placed on the base plate. Support structures are provided on both sides of the inner wall of the protective cover. The bottom surface of the support structure has a docking groove for the docking part to be inserted. The shielding cover is slidably disposed between the opposite sides of the two support structures. The height of the protective cover is greater than the height of the shielding cover, so that a travel space is reserved between the inner wall of the protective cover and the top surface of the shielding cover. A drive rod is fixedly connected to the center of the top surface of the shielding cover. A drive knob is rotatably connected to the top surface of the protective cover. The drive knob is coaxially arranged with the drive rod. The drive knob has a drive hole through which the drive rod is threadedly connected. The shielding cover is inserted into the placement groove, and the outer wall of the shielding cover abuts against the inner wall of the placement groove.

[0007] Preferably, the protective cover is provided with a through hole for the drive knob to rotate and connect, and a limit ring is installed at the bottom of the drive knob, the outer diameter of the limit ring being larger than the inner diameter of the through hole.

[0008] Preferably, a bearing sleeve is provided inside the movable hole, the outer ring of the bearing sleeve is connected to the inner wall of the movable hole, and the inner ring of the bearing sleeve is connected to the outer wall of the drive knob.

[0009] Preferably, the upper end of the drive rod extends to the outside of the drive hole, and a limiting member is provided at the upper end of the drive rod, the limiting member covering the drive hole.

[0010] Preferably, the support structure has alignment grooves on both sides, and the bottom plate has an alignment part that is inserted into the alignment groove on its top surface.

[0011] Preferably, the protective cover has at least one mounting hole through it on the side near the support structure, and a fastener is inserted into the mounting hole. The mating part has an internal threaded hole corresponding to the mounting hole, and the internal threaded hole is used for the fastener to be threaded.

[0012] Preferably, the outer wall of the shielding cover includes two oppositely arranged sliding surfaces and two oppositely arranged observation surfaces. The two sliding surfaces respectively abut against the opposite sides of the two supporting structures. Fluorescent markings are provided on both observation surfaces. An observation window is provided on the side wall of the protective cover opposite to the observation surfaces.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Electronic equipment is installed in the placement slot. The mating part and the mating slot are connected and interlocked to allow the protective cover to be properly positioned and placed on the base plate. The operator can operate the drive knob to rotate the drive rod out or in, thereby causing the shielding cover to slide within the formed space. This allows the shielding cover to be installed or removed from inside the protective cover. The housing structure, by setting up a housing assembly consisting of a protective cover and a shielding cover, ensures the electromagnetic shielding performance of the housing structure and also increases the protection function of the shielding cover. At the same time, when the shielding cover is disassembled, the protective cover provides effective protection for the electronic equipment in the placement slot. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the shell structure in the embodiment.

[0016] Figure 2 This is a cross-sectional view of the shell structure in the embodiment. Figure 1 .

[0017] Figure 3 This is a cross-sectional view of the shell structure in the embodiment. Figure 2 .

[0018] Figure 4 This is a cross-sectional view of the mating part and fastener in the embodiment.

[0019] In the diagram: 1. Base plate; 101. Docking part; 102. Placement groove; 103. Alignment part; 104. Internal threaded hole; 2. Cover assembly; 21. Protective cover; 201. Movable hole; 202. Bearing sleeve; 203. Mounting hole; 204. Fastener; 205. Observation window; 22. Shielding cover; 206. Drive rod; 207. Limiting component; 208. Sliding surface; 209. Observation surface; 210. Fluorescent mark; 3. Support structure; 301. Docking groove; 302. Stroke space; 303. Alignment groove; 4. Drive knob; 401. Drive hole; 402. Limiting ring. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0021] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A housing structure for electromagnetic shielding includes a base plate 1 and a cover assembly 2. Both sides of the base plate 1 are provided with a docking part 101 and an alignment part 103, which are separated from each other. The top surface of the base plate 1 is provided with a placement groove 102 for installing electronic equipment.

[0022] The enclosure assembly 2 includes a protective cover 21 and a shielding cover 22. Both the base plate 1 and the shielding cover are made of aluminum alloy plates. Support structures 3 are provided on both sides of the inner wall of the protective cover 21. The support structures 3 extend along the height direction of the protective cover 21. The bottom surface of the support structure 3 is provided with a docking groove 301 for the docking part 101 to be inserted. The two sides of the support structure 3 are provided with alignment grooves 303 for the alignment part 103 to be inserted, so as to guide the protective cover 21 to be aligned and covered on the base plate 1. Two symmetrically arranged mounting holes 203 are provided through the side of the protective cover 21 near the support structure 3. The docking part 101 is provided with an internal threaded hole 104 corresponding to the mounting hole 203. Fasteners 204 are inserted into the mounting holes 203. The fasteners 204 are bolt structures. The shank of the bolt structure passes through the mounting hole 203 and is threaded into the internal threaded hole 104, so that the operator can perform disassembly and assembly operations between the protective cover 21 and the base plate 1. After the protective cover 21 and the base plate 1 are installed, the outer wall of the protective cover 21 and the outer wall of the base plate 1 are fitted together.

[0023] The shielding cover 22 is slidably positioned between the two supporting structures 3 on opposite sides. The height of the protective cover 21 is greater than the height of the shielding cover 22, leaving a travel space 302 between the inner wall of the protective cover 21 and the top surface of the shielding cover 22. A drive knob 4 is rotatably connected to the top surface of the protective cover 21. The protective cover 21 has a through-hole 201 for the drive knob 4 to rotate. A limit ring 402 is installed at the bottom of the drive knob 4. The outer diameter of the limit ring 402 is greater than the inner diameter of the through-hole 201 to prevent the drive knob 4 from disengaging from the through-hole 201. Preferably, a bearing sleeve 202 is provided inside the through-hole 201. The outer ring of the bearing sleeve 202 is connected to the inner wall of the through-hole 201, and the inner ring of the bearing sleeve 202 is connected to the outer wall of the drive knob 4. The bearing sleeve 202 facilitates the operation of the drive knob 4 by the operator.

[0024] A drive rod 206 is fixedly connected to the center of the top surface of the shielding cover 22. A drive knob 4 is coaxially arranged with the drive rod 206, and the drive knob 4 has a drive hole 401 for threaded connection of the drive rod 206. Operators can operate the drive knob 4 to rotate the drive rod 206 in or out, thereby causing the shielding cover 22 to slide within the formed space, allowing the shielding cover 22 to be installed or removed inside the protective cover 21. The shielding cover 22 is inserted into the placement slot 102, with its outer wall abutting against the inner wall of the placement slot 102, forming a relatively closed electromagnetic shielding cavity between the interior of the shielding cover and the inner wall of the placement slot 102. This housing structure, by setting up the cover assembly 2 composed of the protective cover 21 and the shielding cover 22, ensures the electromagnetic shielding performance of the housing structure and also increases the protection function of the shielding cover 22. Simultaneously, when the shielding cover 22 is disassembled, the protective cover 21 provides effective protection for the electronic equipment inside the placement slot 102.

[0025] Preferably, the upper end of the drive rod 206 extends to the outside of the drive hole 401, and a limiting member 207 is provided at the upper end of the drive rod 206. The limiting member 207 covers the drive hole 401 and is used to limit the screw-in stroke of the drive rod 206. When the limiting member 207 abuts against the top surface of the drive knob 4, the shielding cover completes the installation operation.

[0026] The outer wall of the shielding cover 22 includes two oppositely arranged sliding surfaces 208 and two oppositely arranged observation surfaces 209. The two sliding surfaces 208 respectively abut against the opposite sides of the two supporting structures 3. Fluorescent markings 210 are provided on both observation surfaces 209. An observation window 205 is provided on the side wall of the protective cover 21 relative to the observation surface 209, so that the staff can observe the shielding cover 22 and electronic equipment when disassembling the shielding cover 22. The fluorescent markings 210 are used to indicate the position of the shielding cover 22 relative to the protective cover 21, and to help the staff judge the disassembly and assembly of the shielding cover 22. After the shielding cover 22 is disassembled, the staff can also observe the status of the electronic equipment through the observation window 205 to determine whether to continue disassembling the protective cover 21.

[0027] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A shell structure for electromagnetic shielding, characterized in that, include: The base plate (1) has a butt joint (101) on both sides and a placement groove (102) on the top surface of the base plate (1). The cover assembly (2) includes a protective cover (21) and a shielding cover (22). The protective cover (21) is placed on the base plate (1). Support structures (3) are provided on both sides of the inner wall of the protective cover (21). The bottom surface of the support structure (3) is provided with a docking groove (301) for the docking part (101) to be inserted. The shielding cover (22) is slidably disposed between the opposite sides of the two support structures (3). The height of the protective cover (21) is greater than the height of the shielding cover (22), so that the inner wall of the protective cover (21) is flush with the shielding cover (22). A travel space (302) is reserved between the top surfaces of the shield (22). A drive rod (206) is fixedly connected to the center of the top surface of the shield (22). A drive knob (4) is rotatably connected to the top surface of the protective cover (21). The drive knob (4) is coaxially arranged with the drive rod (206). The drive knob (4) is provided with a drive hole (401) for threaded connection of the drive rod (206). The shield (22) is inserted into the placement groove (102). The outer wall of the shield (22) abuts against the inner wall of the placement groove (102).

2. The shell structure for electromagnetic shielding according to claim 1, characterized in that, The protective cover (21) is provided with a through hole (201) for the drive knob (4) to rotate and connect. A limit ring (402) is installed at the bottom of the drive knob (4). The outer diameter of the limit ring (402) is larger than the inner diameter of the through hole (201).

3. The shell structure for electromagnetic shielding according to claim 2, characterized in that, A bearing sleeve (202) is provided inside the movable hole (201). The outer ring of the bearing sleeve (202) is connected to the inner wall of the movable hole (201), and the inner ring of the bearing sleeve (202) is connected to the outer wall of the drive knob (4).

4. The shell structure for electromagnetic shielding according to claim 1, characterized in that, The upper end of the drive rod (206) extends to the outside of the drive hole (401), and a limiting member (207) is provided at the upper end of the drive rod (206), the limiting member (207) covering the drive hole (401).

5. A shell structure for electromagnetic shielding according to claim 1, characterized in that, The support structure (3) has alignment grooves (303) on both sides, and the bottom plate (1) has an alignment part (103) that is inserted into the alignment groove (303) on its top surface.

6. A shell structure for electromagnetic shielding according to claim 1, characterized in that, The protective cover (21) has at least one mounting hole (203) through it on the side near the support structure (3). The mounting hole (203) is used to insert a fastener (204). The mating part (101) has an internal thread hole (104) corresponding to the mounting hole (203). The internal thread hole (104) is used for the fastener (204) to be threaded.

7. A shell structure for electromagnetic shielding according to claim 1, characterized in that, The outer wall of the shield (22) includes two oppositely arranged sliding surfaces (208) and two oppositely arranged observation surfaces (209). The two sliding surfaces (208) respectively abut against the opposite sides of the two support structures (3). Fluorescent markings (210) are provided on both observation surfaces (209). The protective cover (21) is provided with an observation window (205) on the side wall of the observation surface (209).

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