Elastic element
The annular spring design with conical profiled rings and a quasi-zero stiffness barrel spring addresses the weight and complexity issues of existing shock absorbers, providing enhanced vibration and shock protection for electronic equipment components.
Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Patents
- Current Assignee / Owner
- ROSSIJSKAYA FEDERATSIYA OT IMENI KOTOROJ VYSTUPAET GOSUDARSTVENNAYA KORPORATSIYA PO ATOMNOJ ENERGII ROSATOM (GOSKORPORATSIYA ROSATOM)
- Filing Date
- 2026-02-04
- Publication Date
- 2026-07-02
AI Technical Summary
Existing shock absorbers for electronic equipment are heavy and complex, complicating their design and manufacturability, while also failing to effectively protect components from vibrations and shocks.
An annular spring design comprising two outer continuous profiled rings with conical lateral surfaces and a split ring, combined with a slotted barrel spring with quasi-zero stiffness, provides vibration and shock protection by dissipating mechanical energy and reducing dynamic loads on printed circuit boards.
The solution enhances manufacturability, effectively dissipates mechanical energy, and reduces the susceptibility of electronic components to vibrations and shocks, thereby improving the protection of printed circuit assemblies.
Smart Images
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Abstract
Description
[0001] FIELD OF TECHNOLOGY
[0002] The invention relates to radio electronics and can be used to protect electronic equipment from mechanical impacts.
[0003] STATE OF THE ART
[0004] A known elastic element is “Shock absorber” (author’s certificate No. 956862, author N.N. Rakhmanov, published 09 / 07 / 82, bulletin No. 33), containing external and internal split profiled rings interacting with each other along mating inclined surfaces, and a rod, the cylindrical surface of which contacts the internal surface of the internal split rings.
[0005] The disadvantage of the device is that in this shock absorber, a solid cylinder made of friction material is used to increase its energy absorption capacity, which significantly increases the weight of the shock absorber and complicates its design.
[0006] A known elastic element is "Shock absorber" (patent RU No. 2323377, authors: Ivanov A.V., Khokhlov P.V., Shlepkin I.S., published 04 / 27 / 2008, bulletin No. 2), containing a set of internal split and external profiled rings interacting with each other along mating inclined surfaces, characterized in that washers made of "metal rubber" material are installed inside the outer and inner rings, while the outer rings are made continuous.
[0007] This invention is selected as a prototype.
[0008] The disadvantages of this device include the complexity of the design and, as a result, the complexity of manufacturing, as well as low manufacturability.
[0009] DISCLOSURE OF THE INVENTION
[0010] The technical problem that the claimed invention is aimed at solving is ensuring vibration and shock resistance of the components of electronic equipment (printed circuit assemblies).
[0011] The technical result consists in creating an elastic element that provides vibration and shock protection for the components of electronic equipment (printed circuit assemblies) and reduces their susceptibility to dynamic loads (vibrations and vibration shocks).
[0012] The technical result is achieved by the elastic element being implemented as an annular spring, comprising two outer continuous profiled rings and a split ring coaxially positioned between them with an outer conical protrusion. The split ring interacts with the outer rings along mating surfaces, between which the elastic element is coaxially positioned within the split ring. Unlike the prototype, the outer continuous profiled rings are designed with a conical lateral surface, have a U-shaped cross-section, and face each other with their larger diameter bases. The elastic support-centering element is installed in the internal cavities of the outer rings and has the form of a slotted barrel spring with quasi-zero stiffness.
[0013] The ring spring elements can be made of stainless steel or titanium nickelide.
[0014] The elastic support-centering element can be made of polyethylene.
[0015] The production of continuous external profiled rings with a conical side surface and a U-shaped cross-section ensures high manufacturability and dissipation of mechanical energy (damping), which reduces the load on the printed circuit board.
[0016] The implementation of the elastic support-centering element in the form of a slotted barrel spring with quasi-zero stiffness ensures the elastic element's immunity to dynamic loads (vibrations and vibration impacts), which also reduces the load on the printed circuit board, since mechanical systems with quasi-zero stiffness are elastic systems whose force characteristic has a horizontal section with stiffness tending to zero. Such systems have the greatest ability to reduce vibration levels.
[0017] BRIEF DESCRIPTION OF DRAWINGS
[0018] The invention is illustrated by figures. Fig. 1 shows an axonometric image of the general view of the elastic element. Fig. 2 shows a longitudinal section of the elastic element. Fig. 3 shows an axonometric image of the general view of the elastic support-centering element.
[0019] The elastic element comprises two outer continuous profiled rings 1, each with a conical lateral surface, a U-shaped cross-section, and facing each other with their larger diameter bases. A split ring 2 with an outer conical projection is coaxially positioned between the outer rings 1, forming, together with the support elements 1, an annular spring.
[0020] An elastic support-centering element 3, having the shape of a slotted barrel-shaped spring with quasi-zero stiffness, is installed coaxially inside the split ring 2 and secured in the inner surfaces of the outer rings 1.
[0021] The elastic support-centering element 3 is secured in the inner surfaces of the outer rings 1 by a fastening element 4 in the form of a bolt and nut 5 passing through the elastic support-centering element 3.
[0022] Elements 1 and 2, which form the ring spring, can be made of stainless steel or titanium nickelide.
[0023] The elastic support-centering element 3 can be made of polyethylene.
[0024] IMPLEMENTATION OF THE INVENTION
[0025] The claimed elastic element operates as follows.
[0026] Under an external load, elastic elements 1 and 2, which form a ring spring and are made, for example, of 30X13 stainless steel, begin to compress. By dissipating mechanical energy through friction in the ring spring, the load on the printed circuit board is reduced. Elastic support-centering element 3, with quasi-zero stiffness, reduces the printed circuit board's susceptibility to dynamic loads (vibrations and vibration impacts).
[0027] Thus, the elastic element allows for improvements in the technological efficiency of its manufacture, provides vibration and shock protection for printed circuit boards, and reduces their susceptibility to dynamic loads.
Claims
1. An elastic element made in the form of a ring spring containing two outer continuous profiled rings and a split ring coaxially located inside between them with an outer conical protrusion, interacting with the outer rings along mating surfaces, between which an elastic element is located coaxially inside the split ring, characterized in that the outer continuous profiled rings are made with a conical side surface, have a U-shaped cross-section and face each other with bases of a larger diameter, the elastic support-centering element is installed in the internal cavities of the outer rings and has the form of a slotted barrel-shaped spring with quasi-zero stiffness.
2. An elastic element according to claim 1, characterized in that the elements of the annular spring are made of stainless steel or titanium nickelide.
3. The elastic element according to paragraph 1, characterized in that the elastic support-centering element is made of polyethylene.