Noise-reduction deformation-resistant SMT conductive rubber elastic sheet

By introducing T-shaped conductive blocks, carbon fibers, and honeycomb through-hole structures into the SMT conductive rubber spring, the problems of insufficient deformation resistance and noise reduction capability in the existing technology are solved, achieving higher deformation resistance and noise reduction effect, and improving the stability and signal transmission quality of electronic devices.

CN224232961UActive Publication Date: 2026-05-12RUISI IND TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUISI IND TECH (SUZHOU) CO LTD
Filing Date
2025-03-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing SMT conductive rubber springs are insufficient in terms of noise reduction and deformation resistance. They are difficult to effectively isolate high-frequency noise and, due to mechanical stress and environmental changes, the material ages and deforms during long-term use, affecting the stable operation of the equipment and the quality of signal transmission.

Method used

The design employs a T-shaped conductive block, carbon fiber reinforcement material, and multiple honeycomb through-hole structures, combined with a sound-absorbing layer, to enhance resistance to deformation and noise reduction.

Benefits of technology

It improves the deformation resistance and noise reduction capability of conductive rubber springs, ensuring stable operation of equipment and signal transmission quality, and enhancing the reliability and durability of electronic equipment.

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Abstract

The utility model discloses a noise-reducing deformation-resistant SMT conductive rubber elastic sheet, which relates to the technical field of SMT conductive rubber elastic sheets and comprises an elastic sheet bottom plate, elastic sheet grooves are arranged on two sides in the elastic sheet bottom plate, elastic pressing sheets are arranged in the elastic sheet grooves, contact parts are arranged at the tops of the elastic pressing sheets, and mounting grooves are arranged in the middles of two sides of the elastic sheet bottom plate. According to the SMT conductive rubber elastic sheet, the performance and the stability of the SMT conductive rubber elastic sheet are remarkably improved, the risk of noise and poor contact is reduced, the service life of the elastic sheet is prolonged, the service life of the elastic sheet is prolonged, the service life of the elastic sheet is prolonged, and the service life of the SMT conductive rubber elastic sheet is prolonged. And the operation efficiency and the user experience of the electronic equipment can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of SMT conductive rubber spring technology, and in particular to SMT conductive rubber spring with noise reduction and deformation resistance. Background Technology

[0002] In the rapidly developing electronics industry, the miniaturization, integration, and high performance of components have become an irreversible trend. Among them, SMT conductive rubber springs, as key components connecting electronic components and circuit boards, not only bear the heavy responsibility of conductivity, but also need to have good noise reduction and deformation resistance to ensure stable operation of equipment and signal transmission quality. However, the SMT conductive rubber spring structure widely used in the current market still has some shortcomings in noise reduction and deformation resistance, which urgently need to be improved through technological innovation and structural optimization.

[0003] In existing SMT assembly processes, conductive rubber springs must withstand pressure from the placement machine and various mechanical stresses during subsequent assembly. Long-term use and environmental changes, such as temperature changes and increased humidity, can also lead to aging and deformation of the spring material, thereby affecting its conductivity and mechanical stability. Secondly, although conductive rubber springs themselves have a certain noise reduction effect, in practical applications, as electronic devices develop towards higher frequencies and faster data processing speeds, existing conductive rubber spring structures often cannot effectively isolate these high-frequency noises, leading to signal interference and affecting the normal operation of the equipment. Utility Model Content

[0004] This invention proposes a noise-reducing and deformation-resistant SMT conductive rubber spring, which solves the problems of limited deformation resistance and insufficient noise reduction capability of existing noise-reducing and deformation-resistant SMT conductive rubber springs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A noise-reducing and deformation-resistant SMT conductive rubber spring includes a spring base plate, spring grooves are provided on both sides of the inner side of the spring base plate, and a spring pressure sheet is provided inside the spring groove. A contact portion is provided on the top of the spring pressure sheet, and mounting grooves are provided in the middle of both sides of the spring base plate. A T-shaped conductive block is provided in the middle of the spring base plate and the spring pressure sheet, and noise reduction mechanisms are provided on both sides of the conductive block. A protective layer is provided on the outer side of both the spring base plate and the spring pressure sheet.

[0007] Preferably, the spring-loaded sheet is connected to the inside of the spring-loaded groove via a spring-loaded part.

[0008] Preferably, the side of the spring pressure plate is provided with a fixing part at the top of the spring plate base plate, and the side of the fixing part is provided with a protrusion, and a groove is formed between the protrusion and the spring plate base plate.

[0009] Preferably, both the spring plate and the spring pressure plate are made of silicone, and carbon fiber is provided inside the spring plate and the spring pressure plate.

[0010] Preferably, the spring plate base and the T-shaped conductive blocks inside the spring pressure plate are arranged alternately.

[0011] Preferably, the noise reduction mechanism includes an elastic material layer and through holes, and the conductive block is provided with elastic material layers on both sides, and the elastic material layer is provided with multiple sets of honeycomb-shaped through holes to form a noise reduction structure.

[0012] Preferably, a sound-absorbing layer is provided on the outer side of each elastic material layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The noise-reducing and deformation-resistant SMT conductive rubber spring has T-shaped conductive blocks arranged alternately inside the base plate and spring pressure sheet. When the conductive rubber spring is bent, the T-shaped conductive blocks deform, causing the T-shaped structures of the conductive blocks to come into contact with each other. At this time, the combination of T-shaped structures in contact improves its bending resistance, thus indirectly improving the overall bending resistance and deformation resistance.

[0015] 2. The spring base plate and spring pressure plate are incorporating carbon fiber. Using new materials such as carbon fiber, which has the characteristics of high strength and low weight, it can effectively improve the rigidity and durability of the spring while reducing the overall weight. It also protects the T-shaped conductive block, improves local rigidity, and can effectively resist deformation under external forces. This ensures that the spring maintains a stable T-shaped structure during long-term use, and greatly improves the reliability and durability of the spring.

[0016] 3. The elastic material layer has multiple sets of honeycomb-shaped through holes inside. The through hole structure can effectively absorb and disperse vibration energy and reduce noise caused by mechanical vibration. In addition, the outer side of the elastic material layer is provided with a sound-absorbing layer, which further enhances the noise reduction effect. The ingenious design of the noise reduction structure allows the spring to maintain efficient electrical connection while significantly improving the acoustic performance of the product. At the same time, the through hole structure allows air to circulate, effectively absorbing sound wave energy, while maintaining a certain degree of elasticity and mechanical strength, without affecting the overall performance of the spring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3This is a schematic diagram of the internal structure of this utility model from another perspective.

[0020] Figure 4 This is a schematic diagram of the noise reduction mechanism of this utility model.

[0021] The following are the labels in the diagram: 1. Spring base plate; 2. Spring groove; 3. Spring pressure plate; 4. Contact part; 5. Mounting groove; 6. Conductive block; 7. Protective layer; 8. Fixing part; 9. Protrusion; 10. Slot; 11. Carbon fiber; 12. Elastic material layer; 13. Through hole; 14. Sound absorbing layer; 15. Spring pressure part. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 This utility model provides a technical solution: a noise-reducing and deformation-resistant SMT conductive rubber spring, including a spring base plate 1, spring grooves 2 are provided on both sides inside the spring base plate 1, and a spring pressure sheet 3 is provided inside the spring groove 2. A contact portion 4 is provided on the top of the spring pressure sheet 3 to ensure the contact area between the conductive rubber spring and the circuit board and ensure conductivity. Mounting grooves 5 are provided in the middle of both sides of the spring base plate 1 to facilitate the installation of the conductive rubber spring on the circuit board. A T-shaped conductive block 6 is provided in the middle of the spring base plate 1 and the spring pressure sheet 3, and noise reduction mechanisms are provided on both sides of the conductive block 6. The outer sides of the spring base plate 1 and the spring pressure sheet 3 are provided with... A protective layer 7, made of insulating material, is placed on top of the conductive block 6 and the noise reduction structure layer. It can prevent external impurities and moisture from entering and protect the internal structure from damage. At the same time, the protective layer 7 can also improve the wear resistance and anti-aging performance of the product. The spring pressure plate 3 is connected to the inside of the spring plate groove 2 through the spring pressure part 15. The spring pressure part 15 makes the conductive rubber spring plate itself have a certain noise reduction effect. A fixing part 8 is provided on the side of the spring pressure plate 3 at the top of the spring plate base plate 1, and a protrusion 9 is provided on the side of the fixing part 8. A groove 10 is formed between the protrusion 9 and the spring plate base plate 1 to facilitate the disassembly of the conductive rubber spring plate.

[0024] Reference Figure 2 , Figure 3Both the spring base plate 1 and the spring pressure plate 3 are made of silicone. The silicone material serves as the basic support for the spring, providing the necessary elasticity and mechanical strength to ensure that the spring does not undergo permanent deformation during installation and use. Furthermore, carbon fiber 11 is incorporated inside the spring base plate 1 and the spring pressure plate 3. Carbon fiber 11 is characterized by high strength and low weight, effectively improving the rigidity and durability of the spring while reducing the overall weight and enhancing its resistance to deformation. It also protects the internal conductive structure of the conductive rubber spring. The T-shaped conductive blocks 6 inside the spring base plate 1 and the spring pressure plate 3 are arranged in a staggered pattern, and conductive silver particles are evenly distributed within each conductive block 6. These conductive silver particles possess high conductivity and good oxidation resistance, improving the conductivity efficiency and stability of the conductive rubber spring, thus contributing to improved operating efficiency and user experience of electronic devices.

[0025] Reference Figure 4 The noise reduction mechanism includes an elastic material layer 12 and through holes 13. The conductive block 6 has elastic material layers 12 on both sides, and multiple sets of honeycomb-shaped through holes 13 are provided inside the elastic material layer 12 to form a noise reduction structure. The through hole structure 13 can effectively absorb and disperse vibration energy and reduce noise caused by mechanical vibration. The outer side of the elastic material layer 12 is provided with a sound-absorbing layer 14, which further enhances the noise reduction effect.

[0026] Specifically, when the noise-reducing and deformation-resistant SMT conductive rubber spring is subjected to pressure from the placement machine and various mechanical stresses during subsequent assembly, and bending occurs, firstly, the silicone material of the spring base plate 1 and the spring pressure plate 3 effectively buffers the force, then the internal carbon fiber 11 further offsets the force, and then the T-shaped conductive block 6 presents a mutually resisting structure, which further eliminates the force and improves the bending deformation resistance.

[0027] Secondly, regarding noise, the conductive rubber spring sheet firstly has a certain noise reduction effect through the spring pressing part 15, the spring sheet groove 2 and the spring pressing sheet 3. At the same time, the elastic material layer 12 inside the spring sheet base plate 1 and the spring pressing sheet 3 plays a role. Through the multiple sets of honeycomb-shaped through holes 13 inside the elastic material layer 12, vibration energy is effectively absorbed and dispersed, reducing noise caused by mechanical vibration. Then, the sound-absorbing layer 14 on the outside of the elastic material layer 12 further reduces noise and enhances the noise reduction effect.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A noise-reducing and deformation-resistant SMT conductive rubber spring, comprising a spring base plate (1), characterized in that, The spring plate (1) has spring grooves (2) on both sides inside, and spring pressure plates (3) are provided inside the spring grooves (2). The top of the spring pressure plates (3) has a contact part (4), and the middle of both sides of the spring plate (1) has an installation groove (5). The middle of the spring plate (1) and the spring pressure plates (3) has a T-shaped conductive block (6), and the sides of the conductive block (6) have noise reduction mechanisms. The outer sides of the spring plate (1) and the spring pressure plates (3) are both provided with a protective layer (7).

2. The noise-reducing and deformation-resistant SMT conductive rubber spring sheet according to claim 1, characterized in that, The spring pressure plate (3) is connected to the inside of the spring plate groove (2) through the spring pressure part (15).

3. The noise-reducing and deformation-resistant SMT conductive rubber spring sheet according to claim 1, characterized in that, The side of the spring pressure plate (3) is provided with a fixing part (8) at the top of the spring plate base plate (1), and the side of the fixing part (8) is provided with a protrusion (9), and a groove (10) is formed between the protrusion (9) and the spring plate base plate (1).

4. The noise-reducing and deformation-resistant SMT conductive rubber spring sheet according to claim 1, characterized in that, The spring plate (1) and the spring pressure plate (3) are both made of silicone, and carbon fiber (11) is provided inside the spring plate (1) and the spring pressure plate (3).

5. The noise-reducing and deformation-resistant SMT conductive rubber spring sheet according to claim 1, characterized in that, The spring plate base plate (1) and the T-shaped conductive blocks (6) inside the spring pressure plate (3) are arranged alternately.

6. The noise-reducing and deformation-resistant SMT conductive rubber spring sheet according to claim 1, characterized in that, The noise reduction mechanism includes an elastic material layer (12) and through holes (13), and the conductive block (6) is provided with elastic material layers (12) on both sides. The elastic material layer (12) is provided with multiple sets of honeycomb-shaped through holes (13) to form a noise reduction structure.

7. The noise-reducing and deformation-resistant SMT conductive rubber spring sheet according to claim 6, characterized in that, The outer side of each elastic material layer (12) is provided with a sound-absorbing layer (14).