Shielding structure locking structure

Abstract

The utility model discloses a kind of shielding structural member locking structure, it is related to shielding structure assembly technical field, to solve the problem that existing metal shielding cover and shielding support are fixed by convex hull and aperture cooperation and are easy to come off, fastening failure, and need to be replaced as a whole after damage.The locking structure includes shielding support and metal shielding cover, installation groove is set in metal shielding cover side edge, and lock position module can be detachably connected in installation groove;Lock position module is composed of lock plate, lock catch and fixing part, lock plate is inserted in the top slot of installation groove and is fixed by fixing part, lock catch contains integrated forming limit block and lock hook, limit block is adapted to install in lock plate limit slot.The utility model improves assembly fastening by buckle type lock position module, avoid to come off under high temperature, stress, and each component can be disassembled and replaced, reduce use cost, prolong the service life of structure, adapt to the long-term stable use demand of electronic equipment.

Description

Technical Field

[0001] This utility model relates to the field of shielding structure assembly technology, and more specifically, to a locking structure for shielding structural components. Background Technology

[0002] In electronic devices, to prevent electromagnetic interference from affecting the circuit board, a shielding bracket is usually soldered onto the top of the printed circuit board, and a metal shielding cover is fitted to the outside of the shielding bracket to eliminate electromagnetic interference. Commonly used methods for fixing metal shielding components include... Figure 1 As shown: A protrusion a is provided on the metal shielding cover, and an opening b is made at the corresponding position of the shielding bracket. The two are fixed by the cooperation of the protrusion a and the opening b.

[0003] However, this fixing method has obvious defects: the assembly tightness between the convex bulge and the opening is poor. When subjected to secondary reflow (high temperature environment) or external stress, the convex bulge is prone to deformation or falling out of the opening, resulting in the failure of the fastening between the metal shielding cover and the shielding bracket, affecting the shielding effect and the stability of electronic equipment; moreover, the structure is an integrated design. Once the convex bulge is damaged, the entire metal shielding cover cannot continue to be used, resulting in high usage costs. Utility Model Content

[0004] The present invention aims to solve the problem that the metal shielding cover and shielding bracket are easily loosened and need to be replaced as a whole after damage in the prior art.

[0005] To address the aforementioned problems, this utility model provides a locking structure for a shielding component, comprising a shielding bracket and a metal shielding cover. The metal shielding cover has a mounting groove at its bottom side. A locking module is detachably connected to the mounting groove for locking the metal shielding cover when it is closed onto the outside of the shielding bracket. The locking module includes a locking plate, a locking fastener, and a fixing component. A slot is formed on the top inner wall of the mounting groove. The top of the locking plate is inserted into the slot and fixedly connected to the metal shielding cover by the fixing component. The locking fastener is detachably connected to one side of the locking plate near the bottom, and when the metal shielding cover is closed onto the outside of the shielding bracket, the snap-fit ​​end of the locking fastener is located below the shielding bracket.

[0006] The locking structure for shielding components provided by this utility model has, but is not limited to, the following beneficial effects compared to the prior art: To address the issues of easy loosening and the need for complete replacement of the metal shielding cover and shielding bracket in existing technologies, this locking structure utilizes a snap-fit ​​design of the locking module to reliably lock the metal shielding cover and shielding bracket. Compared to traditional convex-hole structures, this provides higher fastening strength and effectively prevents loosening under high temperature and stress conditions, ensuring stable shielding performance. Furthermore, the locking plate is detachably connected to the metal shielding cover via fasteners. When the locking plate experiences stress fatigue, only the component needs to be replaced, eliminating the need to replace the entire metal shielding cover. Additionally, when the locking fastener on one side of the locking plate that contacts the shielding bracket shows wear, it can also be replaced individually, significantly reducing operating costs and improving performance.

[0007] Furthermore, the fastener includes a fixing bolt and a nut, the outer wall of the locking plate has a fixing hole, the inner walls on both sides of the slot have through holes corresponding to the fixing hole, the fixing bolt passes through the through hole and the fixing hole, and the nut is threaded onto the outside of the fixing bolt.

[0008] Furthermore, the locking component includes a limiting block and a locking hook, the limiting block and the locking hook are integrally formed, and a limiting groove is formed on one side of the locking plate near the shielding bracket, and the limiting block is adapted to be installed in the limiting groove.

[0009] Furthermore, both the limiting block and the limiting groove have a convex cross-section, which is used to restrict the movement of the limiting block along the thickness direction of the locking plate.

[0010] Furthermore, when the metal shielding cover is closed on the outside of the shielding bracket, the tip of the locking hook extends to the bottom of the shielding bracket, and the tip of the locking hook is provided with an arc transition surface.

[0011] Furthermore, a prying groove is provided on the outer side of the locking plate. The prying groove is used to accommodate the insertion of a long strip tool to pry up the lock fastener and release it from the lock.

[0012] Furthermore, a notch is provided on the outer side of the shielding bracket near the locking module. When the metal shielding cover is closed, the locking fastener first enters the notch and contacts the bottom of the notch.

[0013] Furthermore, the surface of the shielding bracket that contacts the locking element is provided with a wear-resistant layer.

[0014] Furthermore, the locking plate is made of a flexible metal material.

[0015] Furthermore, the number of locking modules is at least two, and they are symmetrically distributed on both sides of the metal shielding cover. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a structure using convex hull locking in the prior art; Figure 2 This is a schematic diagram of the locking state of the shielding structure locking structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the locking structure of the shielding structure in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the locking module in the locking structure of the shielding structure according to an embodiment of the present utility model; Figure 5 This is a half-sectional view of the locking module in the locking structure of the shielding structure of this utility model embodiment; Figure 6 This is a schematic diagram of the locking plate in the locking structure of the shielding structure of this utility model embodiment.

[0017] Explanation of reference numerals in the attached figures: 1. Shielding bracket; 11. Notch; 2. Metal shielding cover; 21. Mounting groove; 3. Locking module; 31. Locking plate; 32. Locking fastener; 321. Limiting block; 322. Locking hook; 323. Limiting groove; 33. Tilt-out groove; 34. Fixing component; 341. Fixing bolt; 342. Nut. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, in the attached diagram, the X-axis represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the right, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the left; in the attached diagram, the Y-axis represents the vertical direction, that is, the front and back position, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the back; in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down.

[0022] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] See Figures 2-6 This utility model discloses a locking structure for a shielding component, comprising a shielding bracket 1 and a metal shielding cover 2. The metal shielding cover 2 has a mounting groove 21 on its bottom side. A locking module 3 is detachably connected to the mounting groove 21 for locking the metal shielding cover 2 when it is closed onto the outside of the shielding bracket 1. The locking module 3 includes a locking plate 31, a locking fastener 32, and a fixing member 34. A slot is provided on the top inner wall of the mounting groove 21. The top end of the locking plate 31 is inserted into the slot and fixedly connected to the metal shielding cover 2 via the fixing member 34. The locking fastener 32 is detachably connected to one side of the locking plate 31 near the bottom, and when the metal shielding cover 2 is closed onto the outside of the shielding bracket 1, the snap-fit ​​end of the locking fastener 32 is located below the shielding bracket 1.

[0027] In this embodiment, addressing the issues of easy loosening and subsequent replacement of the entire metal shielding cover 2 and shielding bracket 1 in existing technologies, the locking structure addresses the problem that during the process of the metal shielding cover 2 closing onto the outer side of the shielding bracket 1, the locking element 32 in the locking module 3 first contacts the shielding bracket 1, causing the locking plate 31 to deform to a certain extent. When the locking element 32 completely passes over the shielding bracket 1, the metal shielding cover 2 is just closed onto the outer side of the shielding bracket 1. Due to the material properties of the locking plate 31, the locking plate 31 resets, causing the locking element 32 to move below the shielding bracket 1, thus achieving the locking purpose. To unlock, the locking element 32 can be simply pried out. Through the snap-fit ​​design of the locking module 3, a reliable lock is formed between the metal shielding cover 2 and the shielding bracket 1. Compared to traditional convex bulge opening structures, this design offers higher fastening strength, effectively preventing loosening under high temperature and stress conditions and ensuring stable shielding performance. Furthermore, the locking plate 31 is detachably connected to the metal shielding cover 2 via the fastener 34. If the locking plate 31 becomes fatigued and unable to reset during repeated use, the metal shielding cover 2 can be removed from the outside of the shielding bracket 1, and then the fastener 34 can be released from the locking plate 34. The locking plate 31 can then be replaced separately without replacing the entire metal shielding cover 2. Moreover, when the locking fastener 32, which contacts the shielding bracket 1 on one side of the locking plate 31, becomes worn, it can also be replaced separately since it is also detachably fixed to one side of the locking plate 31. This significantly reduces usage costs and improves performance.

[0028] It is understandable that, such as Figure 1-4 As shown, the metal shielding cover 2 is a cover structure, which includes a cover plate body corresponding to the shielding bracket 1, and a flange structure located on the edge of the cover plate body. The aforementioned "side of the metal shielding cover 2" refers to the flange structure of the metal shielding cover 2.

[0029] Optional, please refer to Figure 5 and Figure 6 The fixing member 34 includes a fixing bolt 341 and a nut 342. The outer wall of the locking plate 31 is provided with a fixing hole. The inner walls on both sides of the slot are provided with through holes corresponding to the fixing holes. The fixing bolt 341 passes through the through holes and the fixing holes. The nut 342 is threaded onto the outside of the fixing bolt 341.

[0030] In this embodiment, the fixing component 34 specifically includes a fixing bolt 341 and a nut 342. The outer wall of the locking plate 31 has a through fixing hole, and the inner walls on both sides of the slot have through holes coaxial with the fixing hole. During assembly, the fixing bolt 341 passes through the through hole and the fixing hole from one side of the metal shielding cover 2, and then the nut 342 is fitted on the other side and tightened to achieve detachable fixing of the locking plate 31 and the metal shielding cover 2. During subsequent maintenance, only the bolt and nut 342 need to be removed to replace the locking plate 31 without damaging the metal shielding cover 2.

[0031] Optional, please refer to Figure 4 and Figure 5 The locking fastener 32 includes a limiting block 321 and a locking hook 322. The limiting block 321 and the locking hook 322 are integrally formed. The locking plate 31 has a limiting groove 323 on one side near the shielding bracket 1. The limiting block 321 is adapted to be installed in the limiting groove 323.

[0032] In this embodiment, the locking element 32 is a key component for realizing the locking function. It includes a limiting block 321 and a locking hook 322, both of which are manufactured using an integrated molding process (such as stamping or injection molding, with the appropriate process selected according to the material) to ensure structural strength and prevent breakage during use. A limiting groove 323 is provided on the side of the locking plate 31 near the shielding bracket 1, and the limiting block 321 is adapted to be installed in the limiting groove 323 to further improve the limiting stability.

[0033] Optional, please refer to Figure 5 The limiting block 321 and the limiting groove 323 both have a convex cross-section, which is used to restrict the movement of the limiting block 321 along the thickness direction of the locking plate 31.

[0034] In this embodiment, the cross-sections of the limiting block 321 and the limiting groove 323 are both convex. This structure can restrict the movement of the limiting block 321 along the thickness direction of the locking plate 31, and prevent the locking fastener 32 from falling off the locking plate 31 during the locking and unlocking process.

[0035] Optional, please refer to Figure 5 When the metal shielding cover 2 is closed on the outside of the shielding bracket 1, the tip of the locking hook 322 extends to the bottom of the shielding bracket 1, and the tip of the locking hook 322 is provided with an arc transition surface.

[0036] In this embodiment, when the metal shielding cover 2 is placed on the outside of the shielding bracket 1, the tip of the locking hook 322 extends to the bottom of the shielding bracket 1, locking the two together through the hooking action. Compared with the traditional convex hull structure, the hooking area is larger, the force is more even, and it is not easy to loosen. At the same time, the tip of the locking hook 322 is provided with an arc transition surface to avoid the tip being too sharp and scratching the surface or plating of the shielding bracket 1 during the assembly process, thereby reducing the risk of component damage.

[0037] Optional, please refer to Figure 5 and Figure 6 The outer side of the locking plate 31 is provided with a lifting groove 33, which is used to accommodate the insertion of a long strip tool to lift the locking fastener 32 to release the lock.

[0038] In this embodiment, to facilitate subsequent disassembly and maintenance, a pry groove 33 is provided on the outer side of the lock plate 31. The pry groove 33 is a rectangular or U-shaped groove, and the depth of the groove is adapted to the thickness of a long strip tool (such as a screwdriver or pry bar). When it is necessary to unlock, insert the tool into the pry groove 33 and use the lever principle to gently pry up the lock buckle 32, so that the lock hook 322 is disengaged from below the shielding bracket 1, and the metal shielding cover 2 and the shielding bracket 1 can be separated. The operation is convenient and no special tools are required.

[0039] Optional, please refer to Figure 3 and Figure 5 The shielding bracket 1 has a notch 11 on its outer side near the locking module 3. When the metal shielding cover 2 is closed, the locking fastener 32 first enters the notch 11 and contacts the bottom of the notch 11.

[0040] In this embodiment, a notch 11 is provided on the outer side of the shielding bracket 1 near the locking module 3. The size of the notch 11 is slightly larger than the cross-sectional size of the locking member 32. When the metal shielding cover 2 is closed, the locking member 32 first enters the notch 11 and contacts the bottom of the notch 11, thereby effectively reducing the contact area between the outer side of the shielding bracket 1 and the locking member 32 and reducing the wear on the locking member 32.

[0041] Optionally, the surface of the shielding bracket 1 that contacts the locking element 32 is provided with a wear-resistant layer.

[0042] In this embodiment, a wear-resistant layer is provided on the surface of the shielding bracket 1 that contacts the locking element 32. The wear-resistant layer can be a ceramic coating (prepared by spraying process, with high hardness and strong wear resistance) or a polytetrafluoroethylene coating (with low coefficient of friction and high and low temperature resistance) to reduce wear at the contact point between the locking element 32 and the shielding bracket 1 and extend the service life of both.

[0043] Optionally, the locking plate 31 is made of a flexible metal material.

[0044] In this embodiment, the locking plate 31 is made of an elastic metal material, such as spring steel or phosphor bronze. This type of material has good elastic deformation capability. During the closing process of the metal shielding cover 2, the locking plate 31 can undergo moderate elastic deformation with the force of the locking fastener 32. After the locking hook 322 passes the edge of the shielding bracket 1 and extends below it, the locking plate 31 automatically resets, ensuring that the locking hook 322 is tightly hooked on the shielding bracket 1, thus improving the locking reliability. If a slight positional deviation occurs during the assembly process, the elastic deformation can also play a certain buffering and adjustment role, reducing the assembly accuracy requirements.

[0045] Optionally, the number of locking modules 3 is at least two, and they are symmetrically distributed on both sides of the metal shielding cover 2.

[0046] In this embodiment, in order to ensure that the metal shielding cover 2 and the shielding bracket 1 are subjected to uniform force when locked, and to avoid the shielding plate tilting due to force on one side, the number of locking modules 3 is at least two, and they are symmetrically distributed on both sides of the metal shielding cover 2 (such as the left and right sides, the front and back sides, and the distribution method is selected according to the shape of the shielding bracket 1 and the metal shielding cover 2). Each locking module 3 locks synchronously, so that the fastening force on each side of the metal shielding cover 2 is consistent, and the overall assembly stability is further improved.

[0047] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A locking structure for a shielding component, comprising a shielding bracket (1) and a metal shielding cover (2), characterized in that, The metal shielding cover (2) has an installation groove (21) at the bottom of its side. A locking module (3) is detachably connected to the installation groove (21) for locking the metal shielding cover (2) when it is closed on the outside of the shielding bracket (1). The locking module (3) includes a locking plate (31), a locking fastener (32), and a fixing member (34). The top inner wall of the installation groove (21) has a slot. The top of the locking plate (31) is inserted into the slot and is fixedly connected to the metal shielding cover (2) by the fixing member (34). The locking fastener (32) is detachably connected to the side of the locking plate (31) near the bottom. When the metal shielding cover (2) is closed on the outside of the shielding bracket (1), the snap-fit ​​end of the locking fastener (32) is located below the shielding bracket (1).

2. The locking structure for a shielding component according to claim 1, characterized in that, The fastener (34) includes a fixing bolt (341) and a nut (342). The outer wall of the locking plate (31) is provided with a fixing hole. The inner walls on both sides of the slot are provided with through holes corresponding to the fixing holes. The fixing bolt (341) passes through the through holes and the fixing holes. The nut (342) is threaded onto the outside of the fixing bolt (341).

3. The locking structure for a shielding component according to claim 2, characterized in that, The locking component (32) includes a limiting block (321) and a locking hook (322). The limiting block (321) and the locking hook (322) are integrally formed. The locking plate (31) has a limiting groove (323) on one side near the shielding bracket (1). The limiting block (321) is adapted to be installed in the limiting groove (323).

4. The locking structure for a shielding structure according to claim 3, characterized in that, The cross-sections of the limiting block (321) and the limiting groove (323) are both convex, which are used to restrict the movement of the limiting block (321) along the thickness direction of the locking plate (31).

5. A locking structure for a shielding structural component according to claim 4, characterized in that, When the metal shielding cover (2) is placed on the outside of the shielding bracket (1), the tip of the locking hook (322) extends to the bottom of the shielding bracket (1), and the tip of the locking hook (322) is provided with an arc transition surface.

6. The locking structure for a shielding structure according to claim 5, characterized in that, The outer side of the locking plate (31) is provided with a lifting groove (33), which is used to accommodate the insertion of a long strip tool to lift the locking fastener (32) to release the lock.

7. The locking structure for a shielding structure according to claim 1, characterized in that, The shielding bracket (1) has a notch (11) on its outer side near the locking module (3). When the metal shielding cover (2) is closed, the locking fastener (32) first enters the notch (11) and contacts the bottom of the notch (11).

8. A locking structure for a shielding structure according to claim 3, characterized in that, The surface of the shielding bracket (1) that contacts the locking element (32) is provided with a wear-resistant layer.

9. A locking structure for a shielding structure according to claim 1, characterized in that, The locking plate (31) is made of a flexible metal material.

10. A locking structure for a shielding structure according to claim 1, characterized in that, The number of locking modules (3) is at least two, and they are symmetrically distributed on both sides of the metal shielding cover (2).

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