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 welding surface of the case main body is provided with a plurality of positioning blocks, and the PCB is provided with positioning grooves which are inserted with the positioning blocks; the positioning block comprises a conical structure, an inverted trapezoidal structure and a square structure which are sequentially connected from the end away from the cover body to the end close to the cover body, and the side face of the conical structure, the side face of the inverted trapezoidal structure and the side face of the square structure are sequentially connected. According to the utility model, through the cooperation of the positioning block and the positioning groove, when the cover main body and the PCB are welded, the positioning and fixing effects can be provided, the welding position of the cover main body on the PCB is ensured to be accurate, and the cover main body and the PCB are kept relatively fixed, so that the welding precision of the cover main body can be improved.

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] The existing shielding cover is not provided with a positioning structure, and is usually welded with the PCB board in a natural state, and the welding yield of the shielding cover cannot be guaranteed. 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 has no positioning structure and is usually welded with the PCB board in a natural state, and the welding yield of the shielding cover cannot be guaranteed.

[0005] To achieve the above object, the utility model provides a shielding cover, comprising a cover body, the cover body is used for welding with a PCB board, a welding surface of the cover body is provided with a plurality of positioning blocks, and the PCB board is provided with positioning grooves plugged with the positioning blocks;

[0006] The positioning block includes a conical structure, an inverted trapezoidal structure, and a square structure connected in sequence from an end away from the cover body to an end close to the cover body, and the side surfaces of the conical structure, the side surfaces of the inverted trapezoidal structure, and the side surfaces of the square structure are connected in sequence.

[0007] Optionally, an end of the conical structure away from the cover body is provided with a rounded corner.

[0008] Optionally, the positioning block and the cover body are configured as an integrated structure.

[0009] Optionally, the positioning block and the cover body are detachably arranged.

[0010] Optionally, a stud is provided at one end of the positioning block away from the PCB board, and a screw hole connected to the stud is provided on the cover body.

[0011] Optionally, a dovetail buckle is provided at one end of the positioning block away from the PCB board, and a dovetail groove engaged with the dovetail buckle is provided on the cover body.

[0012] Optionally, the shielding cover further comprises a lid sleeved on the cover body, and the lid is engaged with the cover body.

[0013] Optionally, a plurality of evenly arranged clamping holes are provided on the side of the cover body;

[0014] A clamping piece corresponding to the position of the clamping hole is provided on the side of the shielding cover, and a clamping block engaged with the clamping hole is provided on the clamping piece.

[0015] Optionally, a plurality of through holes are provided at the bottom end of the side surface of the cover body.

[0016] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation between the positioning block and the positioning groove, a positioning and fixing effect can be provided when the cover body is welded to the PCB board, thereby ensuring that the welding position of the cover body on the PCB board is accurate and the cover body and the PCB board are kept relatively fixed, thereby providing the welding accuracy of the cover body; through the conical structure and the inverted trapezoidal structure, a guiding effect can be provided in the process of the positioning block extending into the positioning groove, making it easier to plug the positioning block into the positioning groove and convenient to operate; the four sides of the square structure can abut against the four sides of the positioning groove, making the plugging of the positioning block into the positioning groove more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of the utility model.

[0020] Description of Figure Numbers:

[0021] 1. Cover body; 2. Cover; 3. PCB board; 11. Positioning block; 12. Card hole; 13. Through hole; 21. Card connector; 22. Card block; 31. Positioning groove; 111. Conical structure; 112. Inverted trapezoidal structure; 113. Square structure.

[0022] 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

[0023] 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.

[0024] 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.

[0025] 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 solutions, taking "A and / or B" as an example, it includes solution A, or solution B, or a solution 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.

[0026] The utility model provides a shielding cover. Figure 1 and Figure 2 A specific embodiment of the shielding cover provided by the utility model.

[0027] Reference Figure 1 and Figure 2 The shielding cover comprises a cover body 1, the cover body 1 is used for welding with a PCB board 3, a welding surface of the cover body 1 is provided with a plurality of positioning blocks 11, and the PCB board 3 is provided with positioning grooves 31 plugged with the positioning blocks 11;

[0028] The positioning block 11 includes a conical structure 111, an inverted trapezoidal structure 112, and a square structure 113 which are sequentially connected from an end away from the cover body 1 to an end close to the cover body 1, and the side surfaces of the conical structure 111, the side surfaces of the inverted trapezoidal structure 112, and the side surfaces of the square structure 113 are sequentially connected.

[0029] Specifically, the left and right sides of the conical structure 111 are first inclined surfaces, the left and right sides of the inverted trapezoidal structure 112 are second inclined surfaces, and the left and right sides of the square structure 113 are planes. The first inclined surface, the second inclined surface, and the third inclined surface are transitioned by arcs, and the inclination angle of the first inclined surface is greater than the inclination angle of the second inclined surface.

[0030] In this embodiment, through the cooperation between the positioning block 11 and the positioning groove 31, a positioning and fixing effect can be provided when the cover body 1 and the PCB board 3 are welded, ensuring that the welding position of the cover body 1 on the PCB board 3 is accurate, and the cover body 1 and the PCB board 3 remain relatively fixed, thereby providing the welding accuracy of the cover body 1; the conical structure 111 and the inverted trapezoidal structure 112 can provide a guiding effect in the process of the positioning block 11 extending into the positioning groove 31, making it easier to plug the positioning block 11 and the positioning groove 31 and convenient to operate; the four sides of the square structure 113 can abut against the four sides of the positioning groove 31, making the plugging of the positioning block 11 and the positioning groove 31 more stable.

[0031] Furthermore, a rounded corner is provided at one end of the conical structure 111 away from the cover body 1. In this embodiment, the rounded corner is provided so that the end of the conical structure 111 has no sharp corners, thereby avoiding the problem that the sharp corners may cause the PCB board 3 to be scratched by the sharp corners.

[0032] In one embodiment, the positioning block 11 and the cover body 1 are configured as an integrated structure. In this embodiment, since no additional connection and assembly steps are required, the integrated design can simplify the manufacturing process, reduce production difficulty and cost, and improve production efficiency. Specifically, the positioning block 11 and the cover body 1 are both configured as nickel silver structures.

[0033] In another embodiment, the positioning block 11 is detachably arranged from the cover body 1. In this embodiment, the detachable design provides certain flexibility and scalability, and the user can select positioning blocks 11 of different types or sizes according to actual needs to adapt to different working scenes or requirements; the detachable design makes maintenance more convenient, and the user can easily remove the positioning block 11 for repair or replacement without disassembling the entire cover body 1, which can save time and energy.

[0034] When the positioning block 11 and the cover body 1 are detachably arranged, they can be connected in the following two ways:

[0035] First, a stud is provided at one end of the positioning block 11 away from the PCB board 3, and a screw hole connected to the stud is provided on the cover body 1 (all existing structures, not shown in the figure). The screw connection method provides a strong fixing force to ensure that the positioning block 11 is firmly installed on the cover body 1 and is not easy to loosen or fall off. The screw connection method makes the installation and disassembly of the positioning block 11 simple. Screws and screw holes are common mechanical connection means, with mature manufacturing technology and low cost, and are suitable for large-scale production;

[0036] Secondly, a dovetail buckle is provided at one end of the positioning block 11 away from the PCB board 3, and a dovetail groove engaged with the dovetail buckle is provided on the cover body 1 (both the dovetail groove and the dovetail buckle are existing structures, not shown in the figure). The design of the dovetail groove and the dovetail buckle enables the positioning block 11 to be quickly and accurately installed on the cover body 1, 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 positioning block 11 will not fall off or loosen easily after engagement.

[0037] The shielding cover also includes a cover 2 sleeved on the cover body 1, and the cover 2 is engaged with the cover body 1. Specifically, the side of the cover body 1 is provided with a plurality of evenly arranged locking holes 12; the side of the shielding cover is provided with a locking piece 21 corresponding to the position of the locking hole 12, and the locking piece 21 is provided with a locking block 22 engaged with the locking hole 12. In this embodiment, when the cover 2 is assembled with the cover body 1, the locking piece 21 on the side of the cover 2 can be deformed so that the cover 2 can be sleeved on the cover body 1, and then the cover 2 and the cover body 1 are fixed together by the engagement of the locking block 22 with the locking hole 12. The locking hole 12 and the locking block 22 provide a stable connection method, ensuring that the cover 2 can be firmly fixed on the cover body 1, not easy to loosen or fall off, and convenient for the installation and removal of the cover 2.

[0038] Furthermore, a plurality of through holes 13 are provided at the bottom of the side of the cover body 1. In this embodiment, by providing the through holes 13, air convection inside and outside the cover body 1 can be increased, thereby helping the electronic components in the cover body 1 to dissipate heat and improve heat dissipation efficiency.

[0039] 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, characterized in that: It comprises a cover body, the cover body is used for welding with a PCB board, a welding surface of the cover body is provided with a plurality of positioning blocks, and the PCB board is provided with positioning grooves plugged with the positioning blocks; The positioning block includes a conical structure, an inverted trapezoidal structure, and a square structure connected in sequence from an end away from the cover body to an end close to the cover body, and the side surfaces of the conical structure, the side surfaces of the inverted trapezoidal structure, and the side surfaces of the square structure are connected in sequence.

2. The shielding cover according to claim 1, wherein: An end of the conical structure away from the cover body is provided with a rounded corner.

3. The shielding cover according to claim 1, wherein: The positioning block and the cover body are configured as an integrated structure.

4. The shielding cover according to claim 1, wherein: The positioning block and the cover body are detachably arranged.

5. The shielding cover according to claim 4, characterized in that: A stud is provided at one end of the positioning block away from the PCB board, and a screw hole connected to the stud is provided on the cover body.

6. The shielding cover according to claim 4, characterized in that: A dovetail buckle is provided at one end of the positioning block away from the PCB board, and a dovetail groove engaged with the dovetail buckle is provided on the cover body.

7. The shielding cover according to claim 1, wherein: The shielding cover also includes a cover sleeved on the cover body, and the cover is engaged with the cover body.

8. The shielding cover according to claim 7, wherein: The side surface of the cover body is provided with a plurality of evenly arranged clamping holes; A clamping piece corresponding to the position of the clamping hole is provided on the side of the shielding cover, and a clamping block engaged with the clamping hole is provided on the clamping piece.

9. The shielding cover according to claim 1, wherein: A plurality of through holes are arranged at the bottom end of the side surface of the cover body.

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