Special-shaped composite contact structure for keyboard switch

CN224841542UActive Publication Date: 2026-10-09SHANGHAI TOUCH METALS TECH
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Patent Information

Application Number
CN202521832394.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2026-10-09
Estimated Expiration
2035-08-27

AI Technical Summary

Technical Problem

[0002]键盘开关对产品的材质性能、结构稳定性等有较高要求;传统的键盘开关触点,往往采用单一材质或简单分层结构,存在如导电性能与耐磨性能难以兼顾、结构强度不足影响使用寿命的问题,且简单分层结构的各层结合不紧密,易在使用中出现分层脱落,影响产品的可靠性和使用寿命

Benefits of technology

[0009]由于采用了上述技术方案,本实用新型相对现有技术来说,取得的技术进步是:

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Abstract

The utility model discloses a kind of special-shaped composite contact structures for keyboard switch, it is related to keyboard switch contact point technical field, including nickel layer, silver nickel alloy layer and gold silver platinum alloy layer, the silver nickel alloy layer is fixedly connected in nickel layer top surface, the gold silver platinum alloy layer is fixedly connected in silver nickel alloy layer top surface, the nickel layer is as inner layer structure, provide structural support and the like function, the silver nickel alloy layer is located between nickel layer and gold silver platinum alloy layer, transition and link and the like effect, and the silver nickel alloy layer continues to bear contact connection function after gold silver platinum alloy layer consumption failure, the gold silver platinum alloy layer is arc, the gold silver platinum alloy layer is as outermost layer, bears contact and conducting function.The utility model is through the high conductivity and wear resistance of gold silver platinum alloy layer, transition link of silver nickel alloy layer, and the structural support of nickel layer, the synergic optimization of contact's conducting performance, structural strength and wear resistance antioxidation is realized, improve product performance and service life.
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Description

Technical Field

[0001] This utility model relates to the field of keyboard switch contact technology, specifically to a non-standard composite contact structure for keyboard switches. Background Technology

[0002] Keyboard switches have high requirements for material properties and structural stability. Traditional keyboard switch contacts often use a single material or a simple layered structure, which has problems such as difficulty in balancing conductivity and wear resistance, insufficient structural strength affecting service life, and the layers of a simple layered structure are not tightly bonded, making them prone to delamination during use, affecting the reliability and service life of the product. Utility Model Content

[0003] The purpose of this invention is to provide a non-standard composite contact structure for keyboard switches to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A non-standard composite contact structure for a keyboard switch includes a nickel layer, a silver-nickel alloy layer, and a gold-silver-platinum alloy layer, wherein the silver-nickel alloy layer is fixedly connected to the top surface of the nickel layer, and the gold-silver-platinum alloy layer is fixedly connected to the top surface of the silver-nickel alloy layer.

[0006] A further improvement of this utility model is that the nickel layer serves as an inner structure, providing structural support and other functions.

[0007] A further improvement of this utility model is that the silver-nickel alloy layer is located between the nickel layer and the gold-silver-platinum alloy layer, serving as a transition and connection, and the silver-nickel alloy layer continues to perform the contact connection function after the gold-silver-platinum alloy layer is consumed and fails.

[0008] A further improvement of this utility model is that the gold-silver-platinum alloy layer is arc-shaped, and the gold-silver-platinum alloy layer, as the outermost layer, undertakes the functions of contact and conductivity.

[0009] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0010] 1. This utility model provides a non-standard composite contact structure for keyboard switches. Through the high conductivity and wear resistance of the gold-silver-platinum alloy layer, the transition connection of the silver-nickel alloy layer, and the structural support of the nickel layer, the conductivity, structural strength, wear resistance and oxidation resistance of the contact are synergistically optimized, making the contact perform better in high-frequency contact and improving product performance and service life.

[0011] 2. This utility model provides a non-standard composite contact structure for keyboard switches. Through a unique multi-layer structure design and a reliable connection method between each layer, it ensures the overall structural stability of the contact while effectively extending the service life of the contact and improving the reliability of the contact.

[0012] 3. This utility model provides a non-standard composite contact structure for keyboard switches. The overall shape and structure of the contact are designed according to the usage requirements of keyboard switches, which facilitates installation and use in keyboard switches and improves the adaptability of the contact. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] In the picture:

[0016] 1. Nickel layer;

[0017] 2. Silver-nickel alloy layer;

[0018] 3. Gold, silver and platinum alloy layer. Detailed Implementation

[0019] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0021] Example 1

[0022] like Figure 1As shown, this utility model provides a non-standard composite contact structure for a keyboard switch, including a nickel layer 1, a silver-nickel alloy layer 2, and a gold-silver-platinum alloy layer 3. The silver-nickel alloy layer 2 is fixedly connected to the top surface of the nickel layer 1, and the gold-silver-platinum alloy layer 3 is fixedly connected to the top surface of the silver-nickel alloy layer 2. The nickel layer 1 serves as the inner layer, providing structural support and other functions. The silver-nickel alloy layer 2 is located between the nickel layer 1 and the gold-silver-platinum alloy layer 3, serving as a transition and connection. The silver-nickel alloy layer 2 continues to perform the contact connection function after the gold-silver-platinum alloy layer 3 is consumed and fails. The gold-silver-platinum alloy layer 3 is arc-shaped and serves as the outermost layer, undertaking the contact and conductivity functions.

[0023] In this embodiment, the nickel layer 1, the silver-nickel alloy layer 2, and the gold-silver-platinum alloy layer 3 are tightly bonded by hot rolling composite to ensure that the structure of each layer is stable under stress and frequent contact, and that there is no delamination or peeling. The top of the contact structure is arc-shaped, the middle part is a specific transition shape, and the bottom is flat to adapt to the riveting process of keyboard switch contacts.

[0024] Nickel layer 1 serves as the inner structure. Nickel has high strength and a certain conductivity, which can provide good structural support and ensure the structural stability of the entire contact during use. At the same time, it works with silver-nickel alloy layer 2 to build a stable multi-layer structure system, synergistically achieving the product's conductivity and structural support.

[0025] The silver-nickel alloy layer 2 is located between the nickel layer 1 and the gold-silver-platinum alloy layer 3. The silver-nickel alloy layer 2 serves as a transition and connection. It has both certain electrical conductivity and good structural strength. It can effectively connect the outer gold-silver-platinum alloy layer 3 and the inner nickel layer 1, making the bonding between the layers tighter. At the same time, it can assist in electrical conductivity and stress dispersion. After the gold-silver-platinum alloy layer 3 fails, the silver-nickel alloy layer 2 continues to assume the electrical contact function, improving the stability of the overall structure.

[0026] As the outermost layer, the gold-silver-platinum alloy layer 3 possesses excellent electrical conductivity, wear resistance, and oxidation resistance. During electrical contact, it can directly contact other conductive components to ensure good electrical transmission. At the same time, thanks to its wear resistance and oxidation resistance, it extends the product's service life in frequent contact and complex environments.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A non-standard composite contact structure for a keyboard switch, comprising a nickel layer (1), a silver-nickel alloy layer (2), and a gold-silver-platinum alloy layer (3), characterized in that: The silver-nickel alloy layer (2) is fixedly connected to the top surface of the nickel layer (1), and the gold-silver-platinum alloy layer (3) is fixedly connected to the top surface of the silver-nickel alloy layer (2).

2. The irregular composite contact structure for a keyboard switch according to claim 1, characterized in that: The nickel layer (1) serves as an inner structure, providing structural support.

3. The irregular composite contact structure for a keyboard switch according to claim 1, characterized in that: The silver-nickel alloy layer (2) is located between the nickel layer (1) and the gold-silver-platinum alloy layer (3), serving as a transition and connection. The silver-nickel alloy layer (2) continues to perform the contact connection function after the gold-silver-platinum alloy layer (3) is consumed and fails.

4. The irregular composite contact structure for a keyboard switch according to claim 1, characterized in that: The gold-silver-platinum alloy layer (3) is arc-shaped and serves as the outermost layer, undertaking the functions of contact and conductivity.