Special-shaped shielding reed

By designing a three-fold structure for the irregularly shaped shielding spring and a protruding snap-fit ​​positioning part, the problem of decreased clamping tightness and detachment of the shielding spring after long-term use was solved, achieving stable electromagnetic shielding performance and structural stability.

CN223899561UActive Publication Date: 2026-02-10SHENZHEN FRD SCI & TECH
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Patent Information

Application Number
CN202520373729.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-02-10
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Existing shielding springs are prone to fatigue and wear after prolonged use, resulting in decreased clamping performance and easy detachment during installation, thus affecting the shielding effect.

Method used

A non-standard shielding spring was designed, which consists of a fixed part, an elastic part, and a positioning part in a three-fold shape. The positioning part has an inclined protrusion for inserting into the assembly. The elastic part and the positioning part are located on both sides of the fixed part. The protrusion is snapped into the assembly to ensure a stable connection.

Benefits of technology

It improves the stability and deformation resistance of the shielding spring, prevents it from falling off, maintains the electromagnetic shielding effect, reduces production costs, and enhances the stability and compatibility of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special-shaped shielding reed. The special-shaped shielding reed comprises a fixing part, an elastic part and a positioning part, one end of the elastic part is connected with the fixed part, and the other end is suspended; the positioning part is connected with the fixing part; the positioning part is provided with a bulge which obliquely extends towards the fixing part; the bulge is used for inserting an assembly part; the elastic part and the positioning part are located on the two sides of the fixing part respectively. And the fixing part, the elastic part and the positioning part are in a three-fold shape, so that the problems that the shielding reed is not easy to plug and unplug in the use process, the clamping performance is reduced after long-term use, and the shielding reed is easy to fall off in the installation process are solved.
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Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a non-circular shielding spring. Background Technology

[0002] Shielding springs are components commonly used for electromagnetic interference (EMI) shielding. They are widely used in electronic equipment to ensure that the equipment is not affected by external electromagnetic interference during operation, and also to prevent the equipment's own electromagnetic radiation from affecting other equipment. Shielding springs are typically made of conductive elastic materials and provide a low-impedance path between electrical contact surfaces, thereby effectively shielding electromagnetic waves.

[0003] Existing shielding springs are prone to fatigue and wear after prolonged use, leading to a gradual decrease in their clamping performance and making them susceptible to detachment during installation. Furthermore, this wear also affects the shielding effectiveness of the springs, rendering them ineffective at blocking external electromagnetic interference.

[0004] Therefore, existing technologies still need improvement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a special-shaped shielding spring to solve the problems of shielding springs being difficult to insert and remove during use, having reduced clamping performance after long-term use, and being easy to fall off during installation.

[0006] The irregularly shaped shielding spring provided in this application adopts the following technical solution: an irregularly shaped shielding spring, comprising:

[0007] An irregularly shaped shielding spring, comprising:

[0008] Fixing part;

[0009] The elastic part has one end connected to the fixed part and the other end suspended.

[0010] A positioning part is connected to the fixing part; the positioning part is provided with a protrusion that extends obliquely toward the fixing part; the protrusion is used to insert an assembly.

[0011] The elastic part and the positioning part are located on both sides of the fixing part, respectively; the fixing part, the elastic part and the positioning part are in a three-fold shape.

[0012] The irregularly shaped shielding spring, wherein the fixing part, the elastic part, and the positioning part are integrally formed.

[0013] In the aforementioned irregularly shaped shielding spring, the cross-sectional width of the fixing part, the cross-sectional width of the elastic part, and the cross-sectional width of the positioning part are equal.

[0014] The irregularly shaped shielding spring has a raised center portion in the elastic part.

[0015] The irregularly shaped shielding spring, wherein the suspended end of the elastic part is provided with a first guide arc surface; the first guide arc surface is recessed into the fixing part.

[0016] The irregularly shaped shielding spring has a positioning part that is suspended at one end away from the fixing part and is provided with a second guide arc surface; the second guide arc surface is recessed into the fixing part.

[0017] In the aforementioned irregular shielding spring, the vertical distance from the positioning part to the fixing part gradually increases from the suspended end of the positioning part toward the other end.

[0018] In the aforementioned irregularly shaped shielding spring, the angle between the protrusion and the surface of the positioning part is greater than 120 degrees.

[0019] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0020] This application discloses a non-standard shielding spring. During installation, the fixing part and the positioning part clamp the assembly, and the protrusion is engaged inside the assembly. This solves the problems of the shielding spring being difficult to insert or remove during use, having reduced clamping tightness after long-term use, and being easy to fall off during installation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the irregularly shaped shielding spring in this utility model;

[0023] Figure 2 This is a structural schematic diagram of the irregularly shaped shielding spring in this utility model from another perspective.

[0024] Explanation of reference numerals in the attached drawings: 100, fixing part; 200, elastic part; 210, first guide arc surface; 300, positioning part; 310, protrusion; 320, second guide arc surface. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] This application discloses an irregularly shaped shielding spring, such as... Figure 1 As shown, the irregularly shaped shielding spring includes a fixing part 100 and an elastic part 200; one end of the elastic part 200 is connected to the fixing part 100, and the other end is suspended; the positioning part 300 is connected to the fixing part 100; the positioning part 300 is provided with a protrusion 310 extending obliquely towards the fixing part 100; the protrusion 310 is used to insert an assembly; wherein, the elastic part 200 and the positioning part 300 are respectively located on both sides of the fixing part 100; the fixing part 100, the elastic part 200 and the positioning part 300 are in a three-fold shape.

[0028] In actual use, the assembly is installed between the fixing part 100 and the positioning part 300 to hold the assembly in place. The positioning part 300 is provided with a protrusion 310 that extends obliquely toward the fixing seat. The protrusion 310 is inserted into the corresponding slot of the assembly to fix the assembly. When the elastic part 200 is compressed, the elastic part 200 moves downward. The elasticity of the elastic part 200 ensures the electromagnetic shielding and conductive contact performance between the assemblies.

[0029] In another embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the elastic part 200, the fixing part 100, and the positioning part 300 are in a tri-fold shape; furthermore, the elastic part 200, the fixing part 100, and the positioning part 300 are integrally formed, with an overall shape resembling an "S" or "Z" shape. In practical applications, this avoids structural weak points caused by connection points, improving the overall strength of the shielding spring. Simultaneously, the tri-fold "S" or "Z" shaped structure can better disperse stress under load, enhancing structural stability and resistance to deformation, ensuring the stability of the shielding spring, reducing production costs, and occupying less space.

[0030] In this embodiment, the cross-sectional widths of the elastic part 200, the fixing part 100, and the positioning part 300 are equal. When the elastic part 200 is subjected to compressive force, it can distribute stress more evenly, avoid stress concentration, better maintain its elastic properties, reduce the risk of local deformation or damage, avoid the decline in shielding performance due to local structural differences, and maintain the stability of the shielding effect.

[0031] In this embodiment, as Figure 2 As shown, the angle between the protrusion 310 and the surface of the positioning part 300 is greater than 120 degrees. When the assembly is installed on the irregularly shaped shielding spring, the protrusion 310 can effectively fix the assembly. During assembly, the protrusion 310 acts like a barb, which can be engaged in the opening of the assembly to prevent the shielding spring from falling off during use, thus preventing it from effectively blocking external electromagnetic interference. In practical applications, the protrusion 310 can also be semi-circular, square, trapezoidal, etc., to adapt to openings of different shapes of assemblies, improving the flexibility and compatibility of the shielding spring.

[0032] In another embodiment of this utility model, such as Figure 1 As shown, the elastic part 200 has a raised center and is generally convex arc-shaped. The raised center of the elastic part 200 can increase its structural strength. During compression, it can effectively distribute linear stress, avoid damage caused by excessive local stress, and improve the service life of the elastic part 200, thus achieving dual protection of shielding and conductivity.

[0033] In this embodiment, as Figure 2 As shown, a first guide arc surface 210 is provided at one suspended end of the elastic part 200; the first guide arc surface 210 is recessed towards the fixing part 100. In actual use, when the elastic part 200 is compressed, it extends forward, and the structure of the first guide arc surface 210 can provide a more uniform support force, enhancing the overall stability of the spring structure. The guide structure between the elastic part 200 and the first guide arc surface 210 is similar to a flat-arc surface combination, which can effectively prevent structural eccentricity caused by off-center loading torque, ensuring that the elastic part 200 always maintains the correct direction and position when under force, guaranteeing the stability of the spring, thereby improving the overall reliability of the product.

[0034] In this embodiment, the end of the positioning part 300 facing away from the fixing part 100 is suspended and is provided with a second guide arc surface 320; the second guide arc surface 320 is recessed into the fixing part 100. In actual use, the second guide arc surface 320 is provided on the end of the positioning part 300 facing away from the fixing seat, which plays a guiding role and can intuitively distinguish the installation direction of the shielding spring, avoiding installation failure or functional failure due to incorrect direction; at the same time, during installation, the second guide arc surface 320 can cooperate with the protrusion 310 to further enhance the stability of the shielding spring and ensure that it will not loosen due to vibration or external force during use.

[0035] In this embodiment, the vertical distance from the positioning part 300 to the fixing part 100 gradually increases from the suspended end of the positioning part 300 towards the other end. In use, the vertical distance from the suspended end of the positioning part 300 to the fixing part 100 is less than the vertical distance from the other end of the positioning part 300 away from the suspended end to the positioning part 300. Therefore, the positioning part 300 as a whole presents an angle of inclination towards the fixing part 100, forming a small clamp between the suspended end of the positioning part 300 and the fixing part 100. Specifically, when the assembly is installed onto the shielding spring, this inclined structure of the positioning part 300 provides a certain preload force to the spring after assembly, further ensuring the stability of the spring during operation.

[0036] In summary, this application discloses a non-standard shielding spring, comprising a fixing part, an elastic part, and a positioning part; one end of the elastic part is connected to the fixing part, and the other end is suspended; the positioning part is connected to the fixing part; the positioning part has a protrusion extending obliquely towards the fixing part; the protrusion is used for inserting an assembly; wherein, the elastic part and the positioning part are respectively located on both sides of the fixing part; the fixing part, the elastic part, and the positioning part are in a three-fold shape, which solves the problems of the shielding spring being difficult to insert and remove during use, decreasing clamping performance after long-term use, and being easy to fall off during installation.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0038] It should be noted that this utility model uses an irregularly shaped shielding spring as an example to introduce the specific structure and working principle of this utility model, but the application of this utility model is not limited to irregularly shaped shielding springs, and can also be applied to the production and use of other similar workpieces.

[0039] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-circular shielding spring, characterized in that, include: Fixing part; The elastic part has one end connected to the fixed part and the other end suspended. A positioning part is connected to the fixing part; the positioning part is provided with a protrusion that extends obliquely toward the fixing part; the protrusion is used to insert an assembly. The elastic part and the positioning part are located on both sides of the fixing part, respectively; the fixing part, the elastic part and the positioning part are in a three-fold shape.

2. The irregularly shaped shielding spring according to claim 1, characterized in that, The fixing part, elastic part and positioning part are integrally formed.

3. The irregularly shaped shielding spring according to claim 2, characterized in that, The cross-sectional widths of the fixing part, the elastic part, and the positioning part are equal.

4. The irregularly shaped shielding spring according to claim 2, characterized in that, The elastic part has a central bulge.

5. The irregularly shaped shielding spring according to claim 4, characterized in that, The elastic part has a first guide arc surface at one of its suspended ends; the first guide arc surface is recessed into the fixing part.

6. The irregularly shaped shielding spring according to claim 1, characterized in that, The positioning part is suspended at one end away from the fixing part and is provided with a second guide arc surface; the second guide arc surface is recessed into the fixing part.

7. The irregularly shaped shielding spring according to claim 1, characterized in that, The vertical distance between the positioning part and the fixing part gradually increases from the end of the positioning part that is suspended above the other end.

8. The irregularly shaped shielding spring according to claim 1, characterized in that, The angle between the protrusion and the surface of the positioning part is greater than 120 degrees.