A relay moving spring piece and a relay

Abstract

This utility model discloses a relay moving spring and a relay, relating to the field of relay technology. Addressing the problem of stress concentration and fatigue caused by large deformation of the moving spring in miniaturized relays, this utility model incorporates a gap in the moving spring body. This gap extends from the contact area near the fixed end to the driving end, separating the moving contact from the moving fixed end body. This structure ensures that the deformation from the fixed end to the driving end and the deformation from the driving end to the contact area do not interfere with each other, effectively dispersing stress concentration, improving flexibility and fatigue resistance, and extending the spring life while maintaining contact opening distance and overtravel parameters within a limited space.

Description

Technical Field

[0001] This utility model belongs to the field of relay technology, specifically relating to a relay moving spring and a relay. Background Technology

[0002] As the core component of a relay, the structure of the moving reed directly affects the overall reliability and lifespan of the relay. Currently, common moving reed solutions mainly suffer from the following drawbacks: 1. The integrated moving spring structure uses a single metal sheet design for both the moving spring and the extension plate. A drive component pushes the extension plate to actuate the moving contact, requiring simultaneous compliance with contact gap and overtravel requirements. However, this structure has the following technical drawbacks: With the trend towards miniaturization in relays, the moving spring must withstand greater deformation within a limited space to meet the contact parameters (gap and overtravel). Long-term repetitive operation leads to stress concentration in the elastic metal (especially at the connection between the extension plate and the main body), easily causing metal fatigue, resulting in plastic deformation or fracture of the spring, ultimately leading to poor contact or failure of the contact.

[0003] 2. A microswitch alternative uses an independent microswitch module as an auxiliary contact, with its on / off state controlled by an external drive structure. However, this solution has the following technical drawbacks: although it avoids the problem of reed fatigue, the structure is complex and the cost is significantly increased, making it difficult to meet the market demand for low-cost, high-integration relays.

[0004] The current requirements for miniaturization and high reliability of relays are coexisting. There is an urgent need for a moving spring structure that can ensure contact parameters (opening distance, overtravel) in a compact space, while also dispersing stress and improving fatigue resistance, in order to solve the problems of short life or high cost of traditional solutions. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a relay moving spring, which, by setting a specific path of gaps on the moving spring body, makes the deformation of the two regions independent when the contacts are closed, effectively disperses the stress concentration area of ​​the spring, significantly reduces the risk of metal fatigue, and extends the service life of the spring, thereby solving at least one of the technical problems involved in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is implemented as follows: This utility model embodiment provides a relay moving spring, including: The fixed end that is electrically connected to the lead-out foot of the moving spring; The driving end, driven by the driving component, causes the moving spring to swing about the fixed end as the swing point; The contact area that carries the moving contact is located between the fixed end and the driving end; The moving spring body is also provided with a gap that starts from the side of the contact area near the fixed end and extends to the driving end. This gap separates the moving contact from the body part where the fixed end is located, so that the deformation path from the fixed end to the driving end is independent of the deformation path from the driving end to the contact area.

[0007] Optionally, the gap is a perforated structure formed by stamping.

[0008] Optionally, the contact area is located in the middle of the moving spring body, and the moving contact is fixed on the side of the contact area near the gap.

[0009] Optionally, the fixed end, the driving end, and the contact area are integrally formed.

[0010] This utility model also provides a relay, including a stationary spring lead, a stationary contact, a moving contact, a moving spring lead, and a driving component. The moving spring is used, with its fixed end connected to the moving spring lead, its driving end driven by the driving component, and the contact area carrying the moving contact.

[0011] Compared with the prior art, the advantages of this utility model are as follows: (1) By setting a specific path of gaps on the moving spring body, the deformation of the two regions when the contact is closed is independent of each other, effectively dispersing the stress concentration area of ​​the spring, significantly reducing the risk of metal fatigue, and extending the service life of the spring.

[0012] (2) Under the limitation of compact internal space caused by the miniaturization of relays, this utility model ensures that the moving spring can still achieve greater elastic deformation and flexibility under the premise of meeting the requirements of parameters such as contact opening distance and overtravel through the gap structure formed by stamping.

[0013] (3) Compared with the micro switch solution in the background technology, the present invention achieves the same function through the innovative stamping structure of a single metal spring, avoiding the use of high-cost purchased parts and reducing production costs.

[0014] (4) The stress dispersion design of this utility model reduces the risk of spring elastic failure after long-term operation, ensures the stability of contact opening / closing operation, and improves the overall reliability of the relay. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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, wherein: Figure 1 A schematic diagram of the mating structure of the moving and stationary contact components of the relay provided by this utility model; Figure 2 This is a schematic diagram of the structure of the relay moving spring provided by this utility model. Detailed Implementation

[0016] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0017] The terms "first," "second," etc., used in the specification and claims of this utility model are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, the first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0018] Please see Figures 1 to 2 As shown, this utility model embodiment provides a relay moving spring, including a fixed end 2 electrically connected to the moving spring lead 1, a driving end 3 driven by a driving member (not shown), and a contact area 5 carrying the moving contact 4 and located between the fixed end 2 and the driving end 3.

[0019] Driven by the aforementioned driving component, the moving spring oscillates with a certain amplitude around the fixed end 2 as the swing point.

[0020] The moving spring body 6 is also provided with a gap 61 that starts from the side of the contact area 5 near the fixed end 2 and extends to the driving end 3. The gap 61 separates the moving contact 4 from the body part where the fixed end 2 is located, so that the deformation path from the fixed end 2 to the driving end 3 is independent of the deformation path from the driving end 3 to the contact area 5. This can effectively disperse the stress concentration area of ​​the spring, significantly reduce the risk of metal fatigue, and extend the service life of the spring.

[0021] Furthermore, the stress-dispersing design of the moving reed can reduce the risk of reed elastic failure after long-term operation, ensure the stability of contact opening / closing action, and improve the overall reliability of the relay.

[0022] In one specific embodiment, the gap 61 is a hollow structure formed by stamping. This ensures that the moving spring can still achieve greater elastic deformation and flexibility while meeting the requirements of parameters such as contact opening distance and overtravel. Moreover, the use of stamping process can avoid the use of high-cost purchased parts and reduce production costs.

[0023] The contact area 5 is located in the middle of the moving spring body 6, and the moving contact 4 is fixed to the side of the contact area 5 near the gap 61.

[0024] Furthermore, the fixed end 2, the driving end 3, and the contact area 5 are integrally formed to improve structural strength.

[0025] This utility model also provides a relay, including a stationary spring lead-out foot 7, a stationary contact 8, a moving contact 4, a moving spring lead-out foot, and a driving component (not shown). The moving spring is used, with its fixed end 2 connected to the moving spring lead-out foot 1, the driving end 3 being driven by the driving component, and the contact area 5 carrying the moving contact 4.

[0026] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0027] Furthermore, it should be noted that the scope of the methods and systems in the embodiments of this utility model is not limited to performing functions in the order shown or discussed. It may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0028] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A relay armature characterized by comprising: include: The fixed end that is electrically connected to the lead-out foot of the moving spring; The driving end, driven by the driving component, causes the moving spring to swing about the fixed end as the swing point; The contact area that carries the moving contact is located between the fixed end and the driving end; The moving spring body is also provided with a gap that starts from the side of the contact area near the fixed end and extends to the driving end. This gap separates the moving contact from the body part where the fixed end is located, so that the deformation path from the fixed end to the driving end is independent of the deformation path from the driving end to the contact area.

2. The relay armature according to claim 1, wherein The gap is a hollow structure formed by stamping.

3. The relay armature of claim 1 wherein: The contact area is located in the middle of the moving spring body, and the moving contact is fixed on the side of the contact area near the gap.

4. The relay armature of claim 1 wherein: The fixed end, driving end, and contact area are integrally formed.

5. A relay, comprising a stationary spring lead, a stationary contact, a moving contact, a moving spring lead, and a driving element, characterized in that: The moving spring sheet as described in any one of claims 1-4 is used, with its fixed end connected to the moving spring lead-out foot, its driving end driven by the driving component, and its contact area carrying the moving contact.

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