Stainless steel spring for terminal

By using an S-bend design and mirror-symmetrical one-piece molded stainless steel spring, the problems of incomplete terminal contact and inefficient space utilization are solved, achieving high electrical conductivity and mechanical stability, reducing production costs, and adapting to complex installation environments.

CN224537385UActive Publication Date: 2026-07-21GUANGZHOU JUJUN METAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU JUJUN METAL TECH CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing stainless steel spring design of terminal blocks has problems such as incomplete contact, loosening, inefficient space utilization, and high production costs, making it difficult to meet the requirements of compact space and high performance.

Method used

The stainless steel springs with an S-bend design include the first, second, and third stainless steel springs, which are integrally molded in a mirror-symmetrical manner. The design incorporates prismatic locking positions and convex locking heads to increase mechanical stability and electrical conductivity.

Benefits of technology

It improves current conduction efficiency, reduces contact resistance, enhances mechanical stability, lowers production costs, adapts to confined spaces, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of stainless steel spring of terminal, including first stainless steel spring, and the second stainless steel spring connected with first stainless steel spring, and the third stainless steel spring connected with second stainless steel spring, the second stainless steel spring is a flat strip-shaped setting connecting piece, the first stainless steel spring is a S bending setting connecting piece, the first bending section position of first stainless steel spring is connected with second stainless steel spring, the end position of the second bending section of first stainless steel spring extends to the position below second stainless steel spring, the stainless steel spring of terminal can provide higher electric conductance performance, stronger mechanical stability, and higher space utilization efficiency.
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Description

Technical Field

[0001] This utility model relates to a stainless steel spring for a terminal block. Background Technology

[0002] In the field of electronic connectors and terminal blocks, the design and structure of stainless steel springs are crucial to current conduction performance and contact stability. With the continuous development of electronic devices, terminal blocks need to provide stable current conduction within a compact space, while maintaining high strength and reliability in the face of various external environments and mechanical stresses. However, existing terminal block designs often face the following problems in practical applications:

[0003] Traditional stainless steel spring designs for terminal blocks typically rely on simple contact methods, which can lead to incomplete or loose connections, increasing contact resistance. This not only affects current transmission efficiency but can also cause overheating and even compromise the long-term stability of the equipment.

[0004] Existing stainless steel spring designs are often overly simplified, making it impossible to achieve efficient connections within limited spaces. For example, the connection method of stainless steel springs is too linear, making it difficult to adapt to narrow or complex space requirements, resulting in a bulky overall terminal structure and increasing the difficulty of assembly and installation.

[0005] Traditional terminal blocks typically use flat or simple folded structures for their stainless steel spring contacts. When exposed to vibration, tension, or other external mechanical stresses, these spring contacts are prone to loosening or deformation. This directly affects the lifespan and stability of the terminal blocks.

[0006] Some high-performance terminal block designs require complex manufacturing processes and multiple processing steps, which not only increases production costs but also reduces production efficiency. For products requiring mass production, such high-cost designs may not meet market demands. Utility Model Content

[0007] The purpose of this invention is to provide a stainless steel spring for a terminal block that offers higher electrical conductivity, stronger mechanical stability, and higher space utilization efficiency.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] A stainless steel spring for a terminal block includes a first stainless steel spring, a second stainless steel spring connected to the first stainless steel spring, and a third stainless steel spring connected to the second stainless steel spring. The second stainless steel spring is a flat strip-shaped connecting piece, and the first stainless steel spring is an S-shaped connecting piece. The first curved section of the first stainless steel spring is connected to the second stainless steel spring, and the end of the second curved section of the first stainless steel spring extends to the lower part of the second stainless steel spring.

[0010] Preferably, the third stainless steel spring has the same structure as the first stainless steel spring and is arranged in a mirror-symmetric manner with the second stainless steel spring as the center.

[0011] Preferably, the end portion of the second curved section of the first stainless steel spring extends to intersect with the second stainless steel spring.

[0012] Preferably, the first stainless steel spring, the second stainless steel spring, and the third stainless steel spring are integrally formed.

[0013] Preferably, the second stainless steel spring has a prismatic locking structure in the middle, and a convex locking head is provided on the prismatic locking structure.

[0014] Preferably, the longitudinal length of the first stainless steel spring is greater than the longitudinal length of the second stainless steel spring.

[0015] Preferably, the side of the first curved section of the first stainless steel spring is recessed.

[0016] The beneficial effects of this utility model are:

[0017] The S-bend design of the first stainless steel spring and connecting piece ensures a tight connection with the second stainless steel spring, reduces contact resistance, and improves conductivity. The S-bend design allows the first stainless steel spring to extend below the second stainless steel spring within a limited space, reducing the installation space requirement and providing a more stable physical connection.

[0018] This design allows the stainless steel spring to provide better mechanical stability within the terminal block, preventing loosening or detachment under external forces, thus improving the reliability of the terminal block. The solution employs a relatively simple structural design, does not require overly complex manufacturing processes, and maintains high performance and durability. Attached Figure Description

[0019] Figure 1 This is a front view of a stainless steel spring contact for a terminal block according to the present invention.

[0020] Figure 2This is a top view of a stainless steel spring contact for a terminal block according to the present invention.

[0021] Figure 3 This is a side view of a stainless steel spring for a terminal block according to the present invention. Specific implementation methods

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" 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; they can refer to the internal communication between two components.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0025] See Figure 1-3As shown, a stainless steel spring for a terminal block includes a first stainless steel spring 1, a second stainless steel spring 2 connected to the first stainless steel spring 1, and a third stainless steel spring 3 connected to the second stainless steel spring 2. The second stainless steel spring 2 is a flat strip-shaped connecting piece, and the first stainless steel spring 1 is a connecting piece with an S-shaped bend. The first bend section 11 of the first stainless steel spring 1 is connected to the second stainless steel spring 2, and the end of the second bend section 12 of the first stainless steel spring 1 extends to the lower part of the second stainless steel spring 2.

[0026] Because the first stainless steel spring 1 adopts an S-bend structure design, this unique shape can effectively establish a more stable and durable connection with the second stainless steel spring 2, thereby significantly reducing contact resistance. This innovative design concept can ensure that the current flows more efficiently in the conductive path, greatly reducing heat generation and energy loss caused by resistance, thus improving the overall conductivity and system reliability.

[0027] Thanks to the S-bend structure and the extended design below the second stainless steel spring 2, the stainless steel spring can achieve more flexible and varied layouts within a limited space. This ingenious design not only effectively saves valuable installation space but is also particularly suitable for applications requiring high-density layouts, greatly improving the compactness and adaptability of the terminal block and enabling it to better meet the needs of various complex installation environments.

[0028] Through its ingenious S-shaped bending design, the first stainless steel spring 1 can better withstand externally applied mechanical stress and vibration, effectively reducing loosening or deformation caused by external forces. This structural optimization significantly improves the mechanical strength and durability of the terminal block, extends its service life, ensures stability and safety during long-term use, and provides users with a more reliable and durable connection solution.

[0029] The third stainless steel spring 3 has the same structure as the first stainless steel spring 1 and is arranged in a mirror symmetrical manner with the second stainless steel spring 2 as the center; the extended part of the end of the second curved section 12 of the first stainless steel spring 1 intersects with the second stainless steel spring 2; the first stainless steel spring 1, the second stainless steel spring 2 and the third stainless steel spring 3 are integrally formed.

[0030] Because the third stainless steel spring 3 is mirror-symmetrically arranged with the first stainless steel spring 1, this unique layout makes the current conduction path of the entire terminal block more symmetrical and balanced. This symmetrical design effectively reduces poor contact or current fluctuations caused by asymmetry, thereby ensuring current stability and improving overall conductivity. Furthermore, this symmetrical design also helps optimize current distribution, reduce localized overheating, and further enhance the performance and reliability of the terminal block.

[0031] The mirror-symmetric design of the third stainless steel spring not only increases the overall structural symmetry of the terminal block, but also ensures mutual support and coordination among the individual stainless steel springs, enhancing the overall shock resistance and mechanical strength of the terminal block. This design better withstands external mechanical stress, vibration, or tension, preventing loosening or deformation of the stainless steel springs and extending the product's service life. Simultaneously, this symmetrical design also improves the terminal block's thermal stability, enabling it to maintain good electrical performance even at high temperatures, ensuring stable operation under various extreme conditions.

[0032] By integrally molding the first stainless steel spring 1, the second stainless steel spring 2, and the third stainless steel spring 3, the manufacturing process and processing steps are simplified. This integrated design reduces complex assembly processes, improves production efficiency, and lowers production costs. The high degree of integration of the overall structure also reduces space occupation, facilitating installation and application in confined spaces. Furthermore, the integrated terminal block is more compact in structure, helping to reduce potential failure points and improve the overall quality and reliability of the product. This design also makes the terminal block easier to maintain and replace, significantly reducing subsequent maintenance costs and time.

[0033] The second stainless steel spring 2 has a prismatic locking structure 21 in the middle, and a convex locking head 22 is provided on the prismatic locking structure 21; the longitudinal length of the first stainless steel spring 1 is greater than the longitudinal length of the second stainless steel spring 2; the side of the first curved section 11 of the first stainless steel spring 1 is concave.

[0034] A unique prismatic locking structure 21 is designed in the middle of the second stainless steel spring 2, with a specially designed convex locking head. This design allows the second stainless steel spring 2 to precisely engage with the bent section of the first stainless steel spring 1. This combination of locking and locking head design not only ensures a more secure connection between the stainless steel springs but also effectively reduces loosening or detachment caused by external forces. Therefore, this design significantly improves the stability and long-term reliability of the terminal block.

[0035] In the design, the longitudinal length of the first stainless steel spring 1 is designed to be longer than that of the second stainless steel spring 2. The advantage of this design is that it provides a longer conductive path. In this way, the current load can be effectively distributed, thereby reducing the risk of localized overheating or increased resistance. This design approach helps improve overall conductivity, ensuring more uniform and efficient current conduction, thus providing a more stable and reliable current supply to the electrical system.

[0036] In the design of the first stainless steel spring 1, the side of its first bent section 11 is recessed. This design enhances the mechanical strength of this part and improves its resistance to external impact or pressure. The recessed structure allows the terminal block to maintain a more stable state when subjected to external forces, making it less prone to deformation or damage. Therefore, this design significantly improves the durability and shock resistance of the terminal block, ensuring safety and stability during long-term use and providing reliable protection for electrical connections.

[0037] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A stainless steel spring for a terminal block, characterized in that: It includes a first stainless steel spring, a second stainless steel spring connected to the first stainless steel spring, and a third stainless steel spring connected to the second stainless steel spring. The second stainless steel spring is a flat strip-shaped connecting piece, and the first stainless steel spring is a connecting piece with an S-shaped bend. The first bend of the first stainless steel spring is connected to the second stainless steel spring, and the end of the second bend of the first stainless steel spring extends to the lower part of the second stainless steel spring.

2. The stainless steel spring contact of the terminal block according to claim 1, characterized in that, The third stainless steel spring has the same structure as the first stainless steel spring and is arranged in a mirror image symmetrically with the second stainless steel spring as the center.

3. The stainless steel spring contact of the terminal block according to claim 2, characterized in that, The end portion of the second curved section of the first stainless steel spring extends to intersect with the second stainless steel spring.

4. The stainless steel spring contact of the terminal block according to claim 3, characterized in that, The first stainless steel spring, the second stainless steel spring, and the third stainless steel spring are integrally formed.

5. The stainless steel spring contact of the terminal block according to claim 2, characterized in that, The second stainless steel spring has a prismatic locking structure in the middle, and a convex locking head is provided on the prismatic locking structure.

6. The stainless steel spring contact of the terminal block according to claim 5, characterized in that, The longitudinal length of the first stainless steel spring is greater than that of the second stainless steel spring.

7. The stainless steel spring contact of the terminal block according to claim 2, characterized in that, The side of the first curved section of the first stainless steel spring is recessed.