Shielding case

Abstract

The utility model discloses a shielding case, which comprises a case main body, the case main body is used for being welded with a PCB (Printed Circuit Board), the case main body encloses an electronic element, one side of the case main body far away from the PCB is provided with an enclosure frame, the side surface of the enclosure frame is provided with a plurality of contact elastic sheets extending into the case main body, and the first end of each contact elastic sheet is provided with an abutting structure used for abutting against the electronic element. According to the utility model, the contact elastic sheet is arranged and extends into the cover main body to abut against the electronic component, so that the cover main body is conductively communicated with the surface of the electronic component, static electricity on the surface of the electronic component can be introduced to the cover main body, and mutual influence among the electronic components in the cover main body is avoided; the contact elastic sheet is abutted against the electronic component through the arc-shaped surface of the abutting structure, and when the abutting force applied to the electronic component by the contact elastic sheet is large, the abutting structure can slide along the surface of the electronic component to reduce the abutting force, so that the electronic component can be prevented from being crushed by the contact elastic sheet.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding covers, in particular to a shielding cover. Background Art

[0002] A shield is a shell or cover made of metal or conductive material used to protect electronic equipment and circuits from electromagnetic interference and radio frequency interference. It blocks or absorbs unwanted electromagnetic radiation to ensure the normal operation of internal electronic components and prevent signal attenuation, data loss or equipment failure.

[0003] Static electricity is generated on the surface of electronic components during operation. Existing shielding covers do not have an electrostatic protection function, which causes the electronic components inside to easily affect each other. Utility Model Content

[0004] The main purpose of the utility model is to provide a shielding cover, aiming to solve the problem that the existing shielding cover does not have an electrostatic protection function, resulting in the electronic components inside the shielding cover being easily affected by each other.

[0005] To achieve the above-mentioned purpose, the utility model proposes a shielding cover, comprising a cover body, the cover body is used for welding with a PCB board, the cover body is arranged to surround the electronic component, a side of the cover body away from the PCB board is provided with a frame, the side of the frame is provided with a plurality of contact springs extending to the inside of the cover body, and the first end of the contact spring is provided with an abutment structure for abutting with the electronic component;

[0006] The abutting surface of the abutting structure is configured as an arc surface;

[0007] The surrounding frame and the contact spring sheet are detachably arranged, and the surrounding frame and the contact spring sheet are connected via a fixing assembly.

[0008] Optionally, the fixing assembly includes a dovetail groove provided on the surrounding frame and a dovetail buckle provided on the second end of the contact spring sheet, and the dovetail groove is engaged with the dovetail buckle.

[0009] Optionally, the fixing assembly includes a shaft sleeve disposed on the surrounding frame and a rotating shaft disposed on the second end of the contact spring sheet, and the shaft sleeve is hinged to the rotating shaft.

[0010] Optionally, the fixing assembly includes a mounting hole provided on the surrounding frame and a screw hole provided at the second end of the contact spring, and the mounting hole and the screw hole are connected by screws.

[0011] Optionally, a plurality of openings are provided at the bottom of the side of the cover body.

[0012] Optionally, the cover body is configured as a bent molding structure.

[0013] Optionally, the shielding cover further comprises a cover sleeved on the cover body, a plurality of locking holes are provided on the side surface of the cover body, and a locking block engaging with the locking holes is provided on the side surface of the cover.

[0014] Optionally, the cover body is configured as a nickel silver structure.

[0015] Compared with the prior art, the utility model has the following beneficial effects: by arranging a contact spring sheet, the contact spring sheet extends to the inside of the cover body and abuts against the electronic component, so that the cover body and the surface of the electronic component are electrically connected, thereby static electricity on the surface of the electronic component can be introduced into the cover body, thereby avoiding mutual influence between the electronic components inside the cover body; the contact spring sheet abuts against the electronic component through the arc surface of the abutment structure, and the arc surface has no sharp corners, thereby avoiding scratches on the electronic component, and the arc surface and the electronic component are in point contact with small friction. When the abutment force applied by the contact spring sheet to the electronic component is large, the abutment structure can slide along the surface of the electronic component to reduce the abutment force, thereby avoiding the electronic component being crushed by the contact spring sheet; the contact spring sheet is arranged to be detachable and can be selectively installed according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0018] Description of Figure Numbers:

[0019] 1. Cover body; 11. Surrounding frame; 12. Contact spring; 13. Abutment structure; 14. Arc surface; 15. Opening; 16. Clamping hole.

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] The utility model provides a shielding cover. Figure 1 A specific embodiment of the shielding cover provided by the utility model.

[0025] Reference Figure 1 The shielding cover comprises a cover body 1, the cover body 1 is used for welding with a PCB board, the cover body 1 is arranged to surround the electronic component, a frame 11 is provided on a side of the cover body 1 away from the PCB board, a plurality of contact springs 12 extending to the inside of the cover body 1 are provided on the side of the frame 11, and a first end of the contact spring 12 is provided with an abutment structure 13 for abutting with the electronic component;

[0026] The abutting surface of the abutting structure 13 is configured as an arc-shaped surface 14;

[0027] The surrounding frame 11 and the contact spring piece 12 are detachably arranged, and the surrounding frame 11 and the contact spring piece 12 are connected via a fixing assembly.

[0028] In this embodiment, a contact spring 12 is provided, and the contact spring 12 extends to the inside of the cover body 1 and abuts against the electronic component, so that the cover body 1 and the surface of the electronic component are conductively connected, so that static electricity on the surface of the electronic component can be introduced into the cover body 1, and mutual influence between the electronic components inside the cover body 1 can be avoided; the contact spring 12 abuts against the electronic component through the arc surface 14 of the abutment structure 13, and the arc surface has no sharp corners, which can avoid scratches on the electronic component, and the arc surface 14 and the electronic component are in point contact with small friction. When the abutment force applied by the contact spring 12 to the electronic component is large, the abutment structure 13 can slide along the surface of the electronic component to reduce the abutment force, thereby avoiding the electronic component from being crushed by the contact spring 12; the contact spring 12 is set to be detachable and can be selectively installed according to actual needs.

[0029] In one embodiment, the fixing assembly includes a dovetail groove provided on the enclosure 11 and a dovetail buckle provided on the second end of the contact spring 12, and the dovetail groove and the dovetail buckle are engaged (the dovetail groove and the dovetail buckle are both existing structures, not shown in the figure). In this embodiment, the design of the dovetail groove and the dovetail buckle enables the contact spring 12 to be quickly and accurately installed on the enclosure 11, without the need for additional connectors, and can be engaged after alignment, thereby simplifying the installation process and improving assembly efficiency; the dovetail groove and the dovetail buckle have a strong mechanical bite force, which can ensure that the contact spring 12 will not fall off or loosen easily after engagement; and the dovetail groove and the dovetail buckle are relatively compact in structure, and can achieve a stable connection in a smaller space, which is suitable for the connection between the enclosure 11 and the contact spring 12.

[0030] In the second embodiment, the fixing assembly includes a sleeve provided on the frame 11, and a rotating shaft provided on the second end of the contact spring 12, and the sleeve is hinged to the rotating shaft (the sleeve and the rotating shaft are both existing structures, not shown in the figure). In this embodiment, the contact spring 12 is fixed to the frame 11 by the hinge connection of the rotating shaft and the sleeve, so that the inclination angle of the contact spring 12 can be adjusted at will, and the inclination is not achieved according to the bending deformation of the contact spring 12 itself, so that the contact spring 12 has a larger inclination angle variation range and a longer service life; and the hinged connection mode of the sleeve and the rotating shaft provides strong mechanical stability, ensuring that the contact spring 12 is not easy to fall off or shift after installation.

[0031] In the third embodiment, the fixing assembly includes a mounting hole provided on the enclosure 11 and a screw hole provided on the second end of the contact spring 12, and the mounting hole and the screw hole are connected by screws (both are existing structures, not shown in the figure). In this embodiment, the screw connection method provides a strong fixing force to ensure that the contact spring 12 is firmly installed on the enclosure 11 and is not easy to loosen or fall off; the screw connection method makes the installation and disassembly of the contact spring 12 simple; screws and screw holes are common mechanical connection means, with mature manufacturing processes and low costs, and are suitable for large-scale production.

[0032] Furthermore, a plurality of openings 15 are provided at the bottom of the side of the cover body 1. In this embodiment, the openings 15 can increase air convection inside and outside the cover body 1, thereby helping the electronic components in the cover body 1 to dissipate heat and improve heat dissipation efficiency.

[0033] Furthermore, the cover body 1 is configured as a bending molding structure. In this embodiment, the bending molding structure generally has a simpler manufacturing process, and this design can reduce production costs, improve production efficiency, reduce the number of parts, and simplify the overall structure of the cover body 1. In addition, configuring the cover body 1 as a bending molding structure can increase the strength and rigidity of the cover body 1, so that it can withstand external impact and vibration, and can better protect the internal electronic components.

[0034] Furthermore, the shielding cover further comprises a cover sleeved on the cover body 1, a plurality of clamping holes 16 are provided on the side of the cover body 1, and a clamping block (not shown in the figure) is provided on the side of the cover to be engaged with the clamping holes 16. In this embodiment, the clamping holes 16 and the clamping blocks provide a stable connection method, ensuring that the cover can be firmly fixed on the cover body 1, not easy to loosen or fall off, and convenient for installation and removal of the cover.

[0035] Furthermore, the cover body 1 is configured as a nickel silver structure. Nickel silver has excellent electrical conductivity and electromagnetic shielding performance, which enables the cover body 1 to effectively prevent interference from external electromagnetic radiation and protect internal electronic components from electromagnetic interference. Nickel silver has high thermal conductivity and can quickly conduct internal heat to the external environment to maintain the normal operating temperature of electronic components and avoid overheating damage.

[0036] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A shielding cover for shielding electromagnetic interference of electronic components, characterized in that: The cover body comprises a cover body, the cover body is used for welding with a PCB board, the cover body is arranged to surround the electronic component, a frame is provided on a side of the cover body away from the PCB board, a plurality of contact springs are provided on the side of the frame extending to the inside of the cover body, and a first end of the contact spring is provided with an abutting structure for abutting with the electronic component; The abutting surface of the abutting structure is configured as an arc surface; The surrounding frame and the contact spring sheet are detachably arranged, and the surrounding frame and the contact spring sheet are connected via a fixing assembly.

2. The shielding cover according to claim 1, wherein: The fixing assembly comprises a dovetail groove arranged on the surrounding frame and a dovetail buckle arranged on the second end of the contact spring, and the dovetail groove is engaged with the dovetail buckle.

3. The shielding cover according to claim 1, wherein: The fixing assembly comprises a shaft sleeve arranged on the surrounding frame and a rotating shaft arranged on the second end of the contact elastic sheet, and the shaft sleeve is hinged to the rotating shaft.

4. The shielding cover according to claim 1, wherein: The fixing assembly comprises a mounting hole arranged on the surrounding frame and a screw hole arranged on the second end of the contact spring, and the mounting hole and the screw hole are connected by screws.

5. The shielding cover according to claim 1, wherein: The bottom of the side of the cover body is provided with a plurality of openings.

6. The shielding cover according to claim 1, wherein: The cover body is configured as a bending forming structure.

7. The shielding cover according to claim 1, wherein: The shielding cover also includes a cover sleeved on the cover body, a plurality of clamping holes are arranged on the side of the cover body, and a clamping block engaged with the clamping holes is arranged on the side of the cover.

8. The shielding cover according to claim 1, wherein: The cover body is configured as a nickel silver structure.

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