Shielding assembly and circuit device

Abstract

The utility model relates to a shielding assembly and a circuit device. The shielding assembly is used for being arranged on a circuit board, and comprises a shielding cover which comprises a cover body and a plurality of fixed convex blocks which are convexly arranged on the side wall of the cover body; each shielding clamp comprises a bottom plate and a pair of clamping parts, the bottom plate is used for being fixedly arranged on a circuit board, the clamping parts are connected to the bottom plate, a fixing opening is formed in the inner side of one clamping part, and when the side wall of the cover body is clamped between the two clamping parts, the fixing protruding blocks are clamped into the fixing openings. According to the shielding clamp of the shielding device, the fixing opening formed in the clamping part is buckled with the fixing protruding block protruding out of the side wall of the shielding cover, the stability of the shielding cover is greatly enhanced through the clamping and buckling effects, the problem of electromagnetic compatibility caused by loosening of the shielding cover in the environment of mechanical vibration and the like can be avoided, and the shielding device is convenient to use. And the potential of the shielding clamp and the shielding case in practical application is greatly expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic shielding of circuit board components, in particular to a shielding component and a circuit device. Background Art

[0002] With the rapid development of modern communication radar technology, electronic components are extremely vulnerable to external electromagnetic wave interference during operation. At the same time, electronic components also generate high-frequency electromagnetic waves during operation, which will interfere with the normal operation of other electronic components around them.

[0003] In order to reduce the interference caused by electromagnetic waves, an electromagnetic shielding cover is usually used to cover the vulnerable components to protect the components from electromagnetic wave interference. In order to fix the shielding cover and facilitate disassembly during maintenance, a shielding clip is usually used to clamp the shielding cover. However, during long-term clamping use of the existing shielding clip, it is extremely easy to loosen when subjected to external forces such as mechanical vibration, thus affecting the electromagnetic shielding performance. Summary of the Utility Model

[0004] Based on this, in view of the problem that the existing shielding clip is prone to loosen when subjected to external force impact, it is necessary to provide a shielding component and a circuit device.

[0005] A shielding component for being arranged on a circuit board, comprising:

[0006] A shielding cover, the shielding cover includes a cover body and a plurality of fixing bumps protruding from the side wall of the cover body; and

[0007] A plurality of shielding clips, each shielding clip includes a bottom plate for being fixedly arranged on the circuit board, and a pair of clamping parts connected to the bottom plate. A fixing opening is formed on the inner side of one of the clamping parts. When the side wall of the cover body is clamped between the two clamping parts, the fixing bump is snapped into the fixing opening.

[0008] In one embodiment, the fixing bump is located on the outer side of the side wall of the cover body, and the fixing opening is formed on the clamping part located on the outer side of the cover body.

[0009] In one embodiment, the fixing opening is a fixing groove formed by being recessed outward from the inner side of the clamping part or a fixing hole penetrating through the clamping part.

[0010] In one embodiment, at least two fixing bumps protrude from the side wall of one cover body, and two shielding clips clamp the side wall of one cover body.

[0011] In one embodiment, the bottom plate of one shielding clip is connected to the bottom plate of another shielding clip that clamps the side wall of the same cover body.

[0012] In one embodiment, the clamping portion includes a first elastic arm that converges inward from the bottom plate, a second elastic arm that bends outward from the first elastic arm, and a third elastic arm that extends outward from the second elastic arm. The fixing opening is formed in the first elastic arm.

[0013] In one embodiment, the fixing bump has a fixing surface that is arranged perpendicular to the side wall of the cover body, and the fixing opening has a clamping surface parallel to the bottom plate; when the side wall of the cover body is clamped by the clamping portion, the fixing surface fits against the clamping surface.

[0014] In one embodiment, the fixing bump has a guiding surface that extends obliquely downward from the fixing surface to the side wall of the cover body.

[0015] In one embodiment, the fixing bump has an arc surface, and the axial direction of the arc surface is set along a direction parallel to the bottom plate.

[0016] A circuit device includes:

[0017] A circuit board;

[0018] The shielding component as described in any one of the above, and the shielding clip of the shielding component is fixedly arranged on the circuit board; and

[0019] Circuit elements, which are soldered to the circuit board and are located between the shielding clips of the shielding component.

[0020] The shielding clip of the above shielding device is buckled with the fixing bump protruding from the side wall of the shielding cover through the fixing opening formed in the clamping portion. Through the functions of clamping and buckling, the stability of the shielding cover is greatly enhanced, and it can avoid electromagnetic compatibility problems caused by the loosening of the shielding cover under environments such as mechanical vibration. Through the stable structure formed by buckling the shielding cover and the shielding clip, the potential of the shielding clip and the shielding cover in practical applications is greatly broadened. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional schematic diagram of a circuit device provided by an embodiment of the present application;

[0022] Figure 2 Shows an exploded schematic diagram of the circuit device according to the above embodiment of the present application;

[0023] Figure 3 Shows a three-dimensional schematic diagram of the shielding clip of the circuit device according to the above embodiment of the present application;

[0024] Figure 4A side view schematic diagram of a first example of a shielding cover of a circuit device according to the above embodiment of the present application is shown;

[0025] Figure 5 A three-dimensional schematic diagram of a second example of a shielding clip of a circuit device according to the above embodiment of the present application is shown;

[0026] Figure 6 A three-dimensional schematic diagram of a second example of a shielding clip of a circuit device according to the above embodiment of the present application is shown.

[0027] Reference numerals: 10, shielding cover; 11, cover body; 12, fixing bump; 121, fixing surface; 122, guiding surface; 123, arc surface; 20, shielding clip; 21, bottom plate; 22, clamping portion; 220, fixing opening; 221, first elastic arm; 222, second elastic arm; 223, third elastic arm; 224, engaging surface; 30, circuit board; 40, circuit element. Detailed implementation manners

[0028] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on the top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "under the bottom of" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0034] Aiming at the problem that the existing shielding clip is prone to looseness under external impact, the present application provides a shielding component and a circuit device. The present application improves the structures of the shielding clip and the shielding cover of the shielding component, so that the shielding clip can firmly and stably hold the shielding cover.

[0035] Specifically, as Figure 1 、 Figure 2 and Figure 3As shown in the figure, the present application provides a shielding component, which may include a shielding cover 10 and a plurality of shielding clips 20. The shielding cover 10 includes a cover body 11 and a plurality of fixing bumps 12, and the fixing bumps 12 protrude from the side wall of the cover body 11. The shielding clip 20 includes a bottom plate 21 and a pair of clamping parts 22. The bottom plate 21 is used to be fixed on the circuit board 30 so that the shielding clip 20 can be fixedly connected to the circuit board 30. The clamping parts 22 are connected to the bottom plate 21. A fixing opening 220 is formed on the inner side of one of the clamping parts 22. When the side wall of the cover body 11 is clamped between the two clamping parts 22, the fixing bump 12 is snapped into the fixing opening 220.

[0036] It can be understood that the shielding clip 20 is buckled with the fixing bump 12 protruding from the side wall of the shielding cover 10 through the fixing opening 220 formed in the clamping part 22. Through the functions of clamping and buckling, the stability of the shielding cover 10 is greatly enhanced, and it can avoid electromagnetic compatibility problems caused by the loosening of the shielding cover 10 under environments such as mechanical vibration. Through the stable structure formed by the buckling of the shielding cover 10 and the shielding clip 20, the potential of the shielding clip 20 and the shielding cover 10 in practical applications is greatly broadened.

[0037] Optionally, in some embodiments, the fixing bump 12 may be disposed on the inner or outer side of the side wall of the cover body 11. Correspondingly, the fixing opening 220 may be formed on the clamping part 22 located on the inner or outer side of the cover body 11.

[0038] Preferably, as Figure 2 shown, in one of the embodiments, the fixing bump 12 is located on the outer side of the side wall of the cover body 11, and the clamping part 22 located on the outer side of the cover body 11 is provided with the fixing opening 220. With such a setting, the clamping part 22 having the fixing opening 220 is disposed on the outer side of the high cover body 11, which is convenient for operating the clamping part 22 and makes the clamping and disassembly of the shielding cover 10 more convenient.

[0039] Optionally, in some embodiments, the fixing opening 220 is a fixing groove recessed outward from the inner side of the clamping part 22 or a fixing hole penetrating through the clamping part 22. The fixing groove or the fixing hole can accommodate and buckle the fixing bump 12, thereby firmly fixing the shielding cover 10.

[0040] Optionally, in some embodiments, the position of the fixing bump 12 can be set at different positions on the side wall of the cover body 11, and can cooperate with the position of the shielding clip 20 to form an optimal fixing structure to form an optimal shielding effect.

[0041] Optionally, as Figure 2As shown, the number of the fixing bumps 12 and the shielding clips 20 can be set according to the size of the shielding cover 10. In some embodiments, at least two fixing bumps 12 protrude from the side wall of one housing 11. Correspondingly, the side wall of one housing 11 is clamped by two shielding clips 20. With such a setting, the number of the shielding clips 20 and the fixing bumps 12 is increased, so that the shielding cover 10 can be clamped more stably.

[0042] Preferably, as Figure 3 shown, in one embodiment, the bottom plate 21 of one shielding clip 20 is connected to the bottom plate 21 of another shielding clip 20 that is clamped to the same side wall of the housing 11. In other words, the bottom plates 21 of multiple shielding clips 20 that are clamped to the same side wall of the housing 11 are connected to each other, so that the multiple shielding clips 20 form a whole, and each fixing bump 12 and the fixing opening 220 are buckled synchronously, thereby enhancing the clamping and buckling effects of the shielding clip 20 on the whole housing 11.

[0043] Exemplarily, in one embodiment, the shielding assembly includes a square shielding cover 10 and four pairs of shielding clips 20. The housing 11 of the shielding cover 10 has four side walls, and a pair of fixing bumps 12 protrude from each side wall. Each side wall corresponds to a pair of shielding clips 20, and the bottom plates 21 of two adjacent shielding clips 20 are connected to each other.

[0044] Furthermore, as Figure 3 shown, in one embodiment, the clamping portion 22 includes a first elastic arm 221, a second elastic arm 222, and a third elastic arm 223. The first elastic arm 221 converges inward from the bottom plate 21. The second elastic arm 222 bends outward from the first elastic arm 221. The third elastic arm 223 extends outward from the second elastic arm 222. The fixing opening 220 is formed in the first elastic arm 221. The first elastic arm 221 is used for deforming so as to achieve the clamping effect. The third elastic arm 223 is used for guiding the housing 11 and the fixing bump 12, so that the housing 11 and the fixing bump 12 can be caught between the third elastic arms 223. When the fixing bump 12 is caught between the third elastic arms 223 and buckled with the fixing opening 220, the second elastic arm 222 is used for abutting against the side wall of the housing 11, thereby clamping the side wall of the housing 11.

[0045] Optionally, the fixing bump 12 has various shapes, such as Figure 4The first example of the shielding cover of the present application is shown. The fixing bump 12 has a fixing surface 121 which is arranged perpendicular to the side wall of the cover body 11. The fixing opening 220 has a engaging surface 224 parallel to the bottom plate 21. When the side wall of the cover body 11 is clamped by the clamping part 22, the fixing surface 121 fits against the engaging surface 224. With such an arrangement, the side wall of the cover body 11 can be clamped by the clamping part 22 in a direction perpendicular to the bottom plate 21, so that the cover body 11 can be more firmly clamped by the shielding clip 20.

[0046] Preferably, as Figure 5 The first example and the second example of the shielding cover of the present application are shown. In one embodiment, the fixing bump 12 has a guiding surface 122 which extends obliquely downward from the fixing surface 121 to the side wall of the cover body 11. With such an arrangement, when the side wall of the cover body 11 is inserted between two clamping parts 22, the guiding surface 122 can cooperate with the third elastic arm 223 of the clamping part 22 to guide the second elastic arm 222 and the first elastic arm 221 of the clamping part 22 to open, so that the fixing bump 12 can enter between the first elastic arms 221.

[0047] Exemplarily, the cross-sectional shape of the fixing bump 12 can be a rectangle or a right triangle.

[0048] Particularly, as Figure 6 The third example of the shielding cover of the present application is shown. In one embodiment, the fixing bump 12 has an arc surface 123 whose axial direction is arranged parallel to the bottom plate 21. With such an arrangement, the arc surface 123 can not only cooperate with the third elastic arm 223 of the clamping part 22 to guide the second elastic arm 222 and the first elastic arm 221 of the clamping part 22 to open, so that the fixing bump 12 can enter between the first elastic arms 221, but also cooperate with the second elastic arm 222 to make the fixing bump 12 more smoothly snap into the fixing opening 220, avoiding the rapid rebound of the clamping part 22.

[0049] Furthermore, as Figure 1 and Figure 2 shown, the present application also provides a circuit device. The circuit device may include a circuit board 30, a shielding component as described in any of the above, and a plurality of circuit elements 40. The shielding clip 20 of the shielding component is fixed on the circuit board 30. The circuit elements 40 are soldered on the circuit board 30 and are located between the shielding clips 20 of the shielding component. When the shielding cover 10 of the shielding component is clamped by the shielding clip 20, the shielding cover 10 can cover the circuit elements 40 to prevent the circuit elements 40 from being affected by external electromagnetic interference.

[0050] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0051] The above-described embodiments only express several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A shielding component for being disposed on a circuit board, characterized in that Comprising: A shielding cover, the shielding cover includes a cover body and a plurality of fixing bumps protruding from the side wall of the cover body; And A plurality of shielding clips, each shielding clip includes a bottom plate for being fixed on a circuit board, and a pair of clamping parts connected to the bottom plate. A fixing opening is formed on the inner side of one of the clamping parts. When the side wall of the cover body is clamped between the two clamping parts, the fixing bumps are snapped into the fixing opening.

2. The shielding component according to claim 1, wherein The fixing bumps are located on the outer side of the side wall of the cover body, and the fixing opening is formed on the clamping part located on the outer side of the cover body.

3. The shielding component according to claim 1, wherein The fixing opening is a fixing groove formed by being recessed outward from the inner side of the clamping part or a fixing hole penetrating through the clamping part.

4. The shielding component according to claim 1, wherein At least two of the fixing bumps protrude from the side wall of one cover body, and the two shielding clips are clamped on the side wall of one cover body.

5. The shielding component according to claim 4, wherein The bottom plate of one shielding clip is connected to the bottom plate of another shielding clip that is clamped on the same side wall of the cover body.

6. The shielding component according to any one of claims 1 to 5, characterized in that The clamping part includes a first elastic arm that converges inward from the bottom plate, a second elastic arm that bends outward from the first elastic arm, and a third elastic arm that expands outward from the second elastic arm. The fixing opening is formed on the first elastic arm.

7. The shielding component according to any one of claims 1 to 5, characterized in that, The fixing bump has a fixing surface, the fixing surface is arranged perpendicular to the direction of the side wall of the cover body, and the fixing opening has a engaging surface parallel to the bottom plate; when the side wall of the cover body is clamped by the clamping part, the fixing surface is attached to the engaging surface.

8. The shielding component according to claim 7, characterized in that The fixing bump has a guiding surface, and the guiding surface extends obliquely downward from the fixing surface to the side wall of the cover body.

9. The shielding component according to any one of claims 1 to 5, characterized in that, The fixing bump has an arc surface, and the axial direction of the arc surface is set along the direction parallel to the bottom plate.

10. A circuit device, characterized in that, Comprising: A circuit board; The shielding assembly according to any one of claims 1 to 9, the shielding clips of the shielding assembly are fixed on the circuit board; And A circuit element, the circuit element is soldered on the circuit board and is located between the shielding clips of the shielding assembly.

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