PCB shielding cover easy to disassemble

Abstract

The utility model relates to the technical field of PCBs, and discloses a PCB shielding case easy to disassemble, which comprises a shielding case, a shielding plate, a clamping assembly and a PCB, the top of the shielding case is provided with a limiting groove, the bottom of the shielding plate is stamped to form a limiting convex block, the limiting convex block is limited and clamped in the limiting groove, and the clamping assembly is connected with the PCB. Heat dissipation through holes are formed in the top of the shielding cover and the top of the shielding plate at equal intervals, two clamping assemblies are symmetrically arranged at the bottom ends of the left side and the right side of the shielding cover, elastic buckles are connected to the sides, close to the shielding cover, of the clamping assemblies, and the shielding cover is fixedly connected with connecting grooves formed in the PCB through the clamping assemblies. Through the arrangement of the anti-dislocation structure of the shielding cover and the shielding plate, the matching of the limiting groove and the convex block ensures that the shielding cover and the plate are tightly attached, the electromagnetic interference is reduced, the rapid connection and disassembly of the shielding cover and the PCB are realized by utilizing the clamping assembly and the elastic buckle, the maintenance and replacement process is simplified, and the PCB damage caused by welding is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB board technical field, concretely is an easily detachable PCB shield case. BACKGROUND

[0002] PCB board is the abbreviation of printed circuit board, is the indispensable component in electronic equipment, along with the rapid development of electronic technology, the application of PCB in various electronic equipment is more and more extensive, and its performance and stability are crucial to the operation of the whole electronic equipment, however, PCB can produce electromagnetic interference when working, influence the normal operation of equipment, and even possibly cause interference to other electronic equipment, therefore, shielding PCB to reduce electromagnetic interference is one of effective means to improve the performance and stability of electronic equipment.

[0003] Such as Chinese patent CN201410052393.0 just disclosed the shield case of PCB board, by the top cover is fixed above the frame to meet, shield height higher electronic component, and through the structure such as card point and bending part top cover is fixed, ensure that the PCB board shield case can pass through the vibration test and impact test, can also avoid the frame empty welding on the PCB board.

[0004] However, the shield case is fixed through the clamping of PCB, and the size requirement of the clamping to the shield case is relatively strict, and the assembly process is relatively difficult, and it is easy to fall off, leading to short circuit of electronic components, compared with the traditional PCB shield case, welding is usually used for fixing, although the stability is ensured, but once the PCB needs to be replaced or maintained, the disassembly process will become complex and easy to damage the PCB.

[0005] Based on this, the utility model discloses an easily detachable PCB shield case to solve the above -mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of easily detachable PCB shield cases to solve the problems raised in the above background.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: an easily detachable PCB shield case, including shield case, shielding plate, clamping assembly and PCB board, the top of the shield case is provided with a limiting slot, the bottom of the shielding plate is stamped and formed with a limiting lug, the limiting lug is limited and clamped in the limiting slot, the top of the shield case and the shielding plate is provided with a heat dissipation through hole at equal intervals, the bottom of the left and right sides of the shield case is symmetrically provided with two groups of clamping assemblies, the side close to the shield case of the clamping assembly is connected with elastic buckle, the shield case is fixedly connected with the connecting slot opened on the PCB board by clamping assembly.

[0008] Preferably, the limiting groove is matched with the limiting protrusion, and the shielding plate is tightly matched with the shielding cover through the limiting protrusion.

[0009] Preferably, the clamping assembly comprises an insertion plate, a clamping plate and a protective pad, the insertion plate is inserted into a connecting groove formed on the PCB, the insertion plate is provided with the clamping plate on both sides, the clamping plate is perpendicular to the insertion plate, the clamping plate is parallel to the PCB, and the bottom of the clamping plate is fixedly connected with the protective pad.

[0010] Preferably, the top end of the elastic buckle is fixedly connected to one side of the insertion plate close to the shielding cover, and the insertion plate is limitedly connected into the connecting groove formed on the PCB through the elastic buckle.

[0011] Preferably, the shielding plate is matched with the top of the shielding cover in shape, and the heat dissipation through hole formed on the shielding cover is corresponded to the heat dissipation through hole formed on the shielding plate.

[0012] Preferably, the heat dissipation through hole communicates the internal space of the shielding cover with the external space.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] Firstly, the utility model sets the shielding cover and the shielding plate, the limiting groove and the limiting protrusion form an anti-misplacement structure, the user can conveniently install and position the shielding plate and the shielding cover, the shielding cover and the shielding plate can be tightly matched through the cooperation of the limiting groove and the limiting protrusion, thereby effectively reducing electromagnetic interference, improving the performance and stability of the electronic equipment, the clamping assembly and the elastic buckle are used to quickly connect and detach the shielding cover and the PCB, the process of maintaining and replacing the PCB is simplified, the PCB damage caused by the traditional welding fixing mode is avoided, the shielding cover can be easily taken off from the PCB when needed, cleaning and inspection are facilitated, and the risk of short circuit of electronic components caused by improper fixing of the shielding cover is reduced.

[0015] Secondly, the utility model sets the heat dissipation through hole, the heat dissipation through hole on the shielding plate is aligned with the heat dissipation through hole formed on the shielding cover when the shielding plate is installed on the shielding cover, and a communication channel is formed, so that the heat generated in the shielding cover can be rapidly dissipated to the outside through the channel, the heat dissipation effect in the shielding cover is guaranteed, and the balance between the heat dissipation performance and the electromagnetic shielding performance of the shielding cover is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a front view cross section structure schematic view of the utility model;

[0018] Figure 3 It is a structure schematic view of the shielding cover in the utility model;

[0019] Figure 4 It is a structure schematic view of the shielding cover in the utility model;

[0020] Figure 5 It is a structure schematic view of the shielding plate in the utility model;

[0021] Figure 6 It is a structure schematic view of the utility model Figure 2 It is an enlarged structure schematic view of A in the utility model;

[0022] Figure 7 It is an enlarged structure schematic view of B in the utility model Figure 2

[0023] 1, shielding cover; 2, shielding plate; 3, limiting groove; 4, limiting bump; 5, heat dissipation through hole; 6, clamping assembly; 601, plugboard; 602, lap plate; 603, protective pad; 7, elastic buckle; 8, PCB board. Specific implementation

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Embodiment 1

[0026] Please refer to Figure 1 - Figure 5 It is illustrated that one kind of easy dismounting PCB shielding cover in the description embodiment 1, including shielding cover 1, shielding plate 2, clamping assembly 6 and PCB board 8, the top of shielding cover 1 is provided with limiting groove 3, the bottom of shielding plate 2 is stamped and formed limiting bump 4, limiting bump 4 is limited and clamped in limiting groove 3, the top of shielding cover 1 and shielding plate 2 is provided with heat dissipation through hole 5 at equal intervals, the bottom end of the left and right sides of shielding cover 1 is provided with two groups of clamping assembly 6 symmetrically, the side close to shielding cover 1 of clamping assembly 6 is connected with elastic buckle 7, and shielding cover 1 is fixedly connected with the connecting groove provided on PCB board 8 through clamping assembly 6;

[0027] Please refer to Figure 6 and Figure 7 The limiting groove 3 in the illustration is matched with the limiting bump 4, and the shielding plate 2 is tightly matched with the shielding cover 1 through the limiting bump 4;

[0028] ​In this embodiment, first, the shielding cover 1 is fixed on the PCB 8 through the clamping assembly 6 symmetrically arranged on the left and right two sides of the bottom. When the PCB 8 is inserted, the elastic buckle 7 will automatically pop open, so that the plug-in plate 601 can be smoothly inserted into the connecting groove on the PCB 8. When the plug-in plate 601 is completely inserted, the elastic buckle 7 will return to its original state, thereby being firmly clamped in the connecting groove, ensuring the stable connection of the shielding cover 1 and the PCB 8. Then, the limiting block 4 of the shielding plate 2 is inserted into the limiting groove 3 of the shielding cover 1, ensuring that the shielding plate 2 tightly cooperates with the shielding cover 1. Since the top of the shielding cover 1 and the shielding plate 2 are both provided with the heat dissipation through hole 5, the heat dissipation through holes 5 of them also correspond, thereby realizing the communication between the internal space of the shielding cover and the external space. Not only the shielding effect is ensured, but also the heat dissipation is facilitated, ensuring the stable operation of the electronic equipment. When the PCB 8 needs to be maintained or replaced, the shielding cover 1 can be easily disassembled through the elastic buckle 7 of the clamping assembly 6, greatly simplifying the maintenance process and reducing the risk of damaging the PCB 8.

[0029] It should be noted that the limiting groove 3 and the limiting block 4 form an anti-misplacement structure, ensuring that the shielding plate 2 will not be misoriented when installed on the shielding cover 1, and facilitating the user to install and position the shielding plate 2 and the shielding cover 1, ensuring the stability and reliability of the shielding effect. The heat generated inside the shielding cover 1 is rapidly dissipated through the heat dissipation through hole 5, thereby effectively reducing the working temperature of the PCB 8 and improving the stability and service life of the electronic equipment.

[0030] Embodiment 2

[0031] Please refer to Figure 4 and Figure 7 In this embodiment, the clamping assembly 6 includes the plug-in plate 601, the clamping plate 602 and the protective pad 603. The plug-in plate 601 is inserted into the connecting groove provided on the PCB 8. The clamping plate 602 is arranged perpendicularly to the plug-in plate 601 and parallel to the PCB 8. The protective pad 603 is fixedly connected to the bottom of the clamping plate 602.

[0032] Further, the top end of the elastic buckle 7 is fixedly connected to the side of the plug-in plate 601 close to the shielding cover 1. The plug-in plate 601 is limitingly connected to the connecting groove provided on the PCB 8 through the elastic buckle 7.

[0033] In this embodiment, when installing, the plug-in plate 601 is first inserted into the connecting slot on the PCB 8, and the elastic buckle 7 is used to firmly lock the plug-in plate 601 in the connecting slot, the lug plate 602 is vertically arranged with the plug-in plate 601, which ensures the stability of the clamping assembly 6, and the protective pad 603 is located at the bottom of the lug plate 602, which can effectively prevent the shielding cover 1 from scratching or damaging the PCB 8 during installation or disassembly, so that the connection between the shielding cover 1 and the PCB 8 is not only stable, but also can be quickly and safely disassembled during maintenance, greatly improving the convenience of operation and the reliability of the equipment.

[0034] It should be noted that the cooperation of the elastic buckle 7 and the connecting slot realizes quick assembly and disassembly through elastic deformation, and the inner sides of the shielding cover 1 and the shielding plate 2 are both equipped with conductive layers to provide electromagnetic shielding effect. The conductive layers of the shielding cover 1 and the shielding plate 2 can adopt metal plating or conductive paint to ensure effective shielding of electromagnetic interference. This structure is simple, easy to install and maintain, and ensures the shielding effect. It is suitable for various electronic equipment, and the close cooperation of the shielding cover 1 and the shielding plate 2 not only ensures the shielding effect, but also ensures that the temperature inside the electronic equipment is controlled within a safe range, thereby prolonging the service life of the equipment.

[0035] Example 3

[0036] Please refer to Figure 2 and Figure 6 Example 3 is described, and the embodiment further describes Example 2. In the diagram, the top shape of the shielding plate 2 matches that of the shielding cover 1, and the heat dissipation through holes 5 formed on the shielding cover 1 correspond to the heat dissipation through holes 5 formed on the shielding plate 2.

[0037] Further, the heat dissipation through holes 5 communicate the internal space of the shielding cover 1 with the external space.

[0038] In this embodiment, the heat dissipation through holes 5 on the shielding plate 2 are aligned with the heat dissipation through holes 5 formed on the shielding cover 1 when the shielding plate 2 is installed on the shielding cover 1, and form a communication channel, so that the heat generated inside the shielding cover 1 can be quickly dissipated to the outside through these channels, effectively reducing the working temperature of the PCB 8, improving the heat dissipation efficiency of the electronic equipment, and ensuring the stability and reliability of the shielding effect due to the close cooperation of the shielding cover 1 and the shielding plate 2. In addition, the top shapes of the shielding cover 1 and the shielding plate 2 match, which ensures that the shielding plate 2 can be accurately placed on the shielding cover 1 during installation, further improving the accuracy and convenience of installation.

[0039] Specifically, the heat dissipation through holes 5 formed on the top of the shielding cover 1 and the shielding plate 2 enable the heat generated inside the shielding cover to be quickly dissipated to the outside through these through holes, effectively reducing the working temperature of the PCB 8, thereby improving the overall performance and service life of the electronic equipment.

[0040] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.

Claims

1. An easily detachable PCB shielding cover, comprising a shielding cover (1), a shielding plate (2), a snap-on assembly (6) and a PCB board (8), characterized in that: A limiting groove (3) is provided on the top of the shielding cover (1), and a limiting protrusion (4) is formed by stamping on the bottom of the shielding plate (2). The limiting protrusion (4) is limited and snap-fitted in the limiting groove (3). Heat dissipation holes (5) are provided at equal intervals on the tops of the shielding cover (1) and the shielding plate (2). Two groups of snap-fit ​​components (6) are symmetrically provided at the bottom ends of the left and right sides of the shielding cover (1). The snap-fit ​​components (6) are connected to an elastic snap buckle (7) on one side close to the shielding cover (1). The shielding cover (1) is fixedly connected to a connection groove provided on a PCB board (8) via the snap-fit ​​components (6).

2. The easily detachable PCB shielding cover according to claim 1, characterized in that: The limiting groove (3) matches the limiting protrusion (4), and the shielding plate (2) is tightly matched with the shielding cover (1) through the limiting protrusion (4).

3. The easily detachable PCB shielding cover according to claim 1, characterized in that: The snap-on assembly (6) comprises an inserting plate (601), a strapping plate (602) and a protective pad (603); the inserting plate (601) is inserted into a connection slot provided on a PCB (8); strapping plates (602) are provided on both the front and rear sides of the inserting plate (601); the strapping plates (602) are arranged perpendicular to the inserting plate (601); the strapping plates (602) are arranged parallel to the PCB (8); and the bottom of the strapping plate (602) is fixedly connected to a protective pad (603).

4. The easily detachable PCB shielding cover according to claim 3, characterized in that: The top end of the elastic buckle (7) is fixedly connected to a side of the plug board (601) close to the shielding cover (1), and the plug board (601) is limitedly connected to a connection slot provided on the PCB board (8) through the elastic buckle (7).

5. The easily detachable PCB shielding cover according to claim 1, characterized in that: The shielding plate (2) matches the top shape of the shielding cover (1), and the heat dissipation through-holes (5) provided on the shielding cover (1) correspond to the heat dissipation through-holes (5) provided on the shielding plate (2).

6. The easily detachable PCB shielding cover according to claim 1, characterized in that: The heat dissipation through hole (5) connects the internal space of the shielding cover (1) with the external space.

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