Relay protection relay with adaptive shock absorbing base
By combining the hydraulic cylinder and the damping spring with a graded buffer design, the problem of the relay's adaptability and buffering effect in complex vibration environments is solved, achieving adaptive vibration reduction and improving the relay's stability and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-04
AI Technical Summary
Existing relay protection relays have poor adaptability and limited buffering effect in complex vibration environments. They cannot dynamically respond to vibrations of different intensities, leading to loose contacts, poor contact, and malfunctions, which affect the stability of the power system.
By employing the coordinated operation of hydraulic columns and damping springs, combined with the graded design of damping plates and buffer springs, an adaptive damping base is formed. Through hydraulic oil resistance adjustment and multiple buffering mechanisms, it dynamically responds to complex vibrations and absorbs vibration energy in layers.
It significantly improves the stability and reliability of relays in complex vibration environments, reduces the risk of loose contacts and malfunctions, and enhances the safety and reliability of power systems.
Smart Images
Figure CN224595448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, specifically to a relay protection relay with an adaptive vibration damping base. Background Technology In the operation of power systems, relay protection devices, as core safety control components, undertake the critical functions of fault detection, circuit interruption, and system protection. Their stability is directly related to the reliability of power supply and the safety of the power grid. However, in practical applications, relay protection devices often face the challenge of complex vibration environments—external interference such as vibration from surrounding equipment operation, mechanical vibration, and even accidental drop impacts may cause the relay contacts to loosen, have poor contact, or even malfunction, resulting in unplanned power outages or equipment damage, causing serious losses to the power supply.
[0002] Traditional relay base vibration damping designs generally suffer from limited functionality and poor adaptability. For example, some products use only rubber pads or ordinary springs as buffering elements. While such structures may provide some protection against low-intensity vibrations in a fixed direction, they cannot dynamically respond to vibrations of varying intensities. When the vibration intensity exceeds the design threshold, the rubber pads are prone to aging and cracking, and the springs are susceptible to fatigue deformation, leading to a sharp decline in buffering performance. Furthermore, traditional vibration damping structures are mostly single-stage buffers, which cannot effectively disperse the multi-directional energy in complex vibration waves. Residual vibrations may still be transmitted to the relay body through the base, potentially causing contact wear and coil loosening over time.
[0003] Even more challenging is the fact that relays in power systems are installed in complex and diverse environments, with some scenarios (such as substations and industrial control cabinets) exhibiting both continuous mechanical vibration and intermittent strong impacts. Traditional vibration reduction solutions struggle to balance "sensitive response under low-intensity vibration" and "strong buffering capacity under high-intensity vibration," leading to a contradictory phenomenon in complex environments where relays are prone to "insufficient buffering under small vibrations and failure due to overload under large vibrations."
[0004] In existing technologies, although some solutions attempt to improve shock absorption performance by increasing the thickness of the buffer layer or using multiple springs in parallel, such improvements are still limited to static design concepts and do not solve the core problem of "dynamic matching of buffering force and vibration intensity". For example, CN219800744U discloses a drop-resistant safety relay, which improves the drop impact resistance through a combination of a buffer ring and a telescopic rod, but this structure is only designed for drop impacts in a single direction and cannot cope with continuous, multi-directional complex vibrations; CN218215143U proposes a safety relay with shock absorption function, which achieves multi-directional fixation through a side clamp and a bottom telescopic rod, but the stiffness of its shock-absorbing spring is fixed and cannot adjust the buffering force according to the vibration intensity, so there is still a risk of contact loosening in strong vibration environments.
[0005] In summary, existing technologies lack a relay vibration damping base that can adapt to different vibration intensities, possess graded buffering capabilities, and has a reliable structure. Therefore, designing a relay base that can dynamically respond to complex vibration environments and comprehensively reduce the impact of vibration through multiple buffering mechanisms has become a pressing technical challenge in this field.
[0006] Based on the above-mentioned problems, this utility model proposes a relay protection relay with an adaptive damping base. The adaptive buffering is achieved through the coordinated work of the hydraulic column and the damping spring. Combined with the graded design of the damping plate and the buffer spring, the stability and reliability of the relay in complex vibration environment are significantly improved, effectively solving the technical bottleneck of poor adaptability and single buffering effect of traditional damping structure. Utility Model Content
[0007] The purpose of this utility model is to address the aforementioned problems by providing a solution. The technical solution of this utility model is as follows: This utility model discloses a relay protection relay with an adaptive vibration damping base, comprising: a fixing plate, on the top of which a relay body is fixedly mounted; an adaptive vibration damping base is provided at the bottom of the fixing plate, the adaptive vibration damping base including a base plate, an adaptive vibration damping component on the top of the base plate, and a vibration damping plate on the top of the adaptive vibration damping component; the adaptive vibration damping component includes two rubber mounting seats respectively fixed to adjacent sides of the fixing plate and the base plate, each of the two rubber mounting seats having several mounting grooves on adjacent sides, mounting plates fixed in the mounting grooves, and a hydraulic column fixed between every two mounting plates, with a vibration damping spring sleeved on the surface of the hydraulic column, and both ends of the vibration damping spring being fixedly connected to the mounting plates respectively.
[0008] The fixed plate serves as the connecting carrier between the relay body and the adaptive damping base, providing structural support and a mounting foundation. The relay body is the core functional component of the relay protection relay, and its stability needs to be protected by the damping structure. The adaptive damping base is the core of the overall damping system, directly undertaking the vibration buffering function. The rubber mounting seat is fixed between the fixed plate and the base plate, serving as the mounting foundation for the hydraulic column and damping spring. At the same time, the rubber material provides initial flexible buffering. The mounting groove is used to accommodate the mounting plate, ensuring the precise positioning and stable connection of the hydraulic column and damping spring. The mounting plate is the carrier connecting the hydraulic column and the damping spring, transmitting vibration energy to the buffer assembly. The hydraulic column is filled with hydraulic oil, and adaptive expansion and contraction are achieved through the characteristic that the hydraulic oil resistance changes with the vibration intensity. The damping spring works in conjunction with the hydraulic column, absorbing vibration energy through elastic deformation and supplementing the linear response of the hydraulic buffer. The damping plate disperses and transmits the remaining vibration energy after initial buffering by the adaptive damping component to the buffer spring. The buffer spring is equidistantly distributed between the damping plate and the fixed plate, providing fine buffering of the remaining vibration, forming a graded buffering mechanism of "adaptive damping component → damping plate → buffer spring".
[0009] Furthermore, the number of hydraulic columns is four, which are equidistantly installed around the two rubber mounting seats. Through the four symmetrically distributed hydraulic columns, the vibration energy from all directions is evenly borne, avoiding local overload and improving the force balance and overall reliability of the shock absorption system.
[0010] Furthermore, the number of buffer springs is several, and the buffer springs are equidistantly installed between the shock-absorbing plate and the fixed plate. Through the densely distributed buffer springs, the remaining vibration transmitted by the shock-absorbing plate is uniformly and meticulously buffered, further reducing the impact of vibration on the relay body.
[0011] Furthermore, mounting screws are fixed around the top of the base plate. The top ends of the four mounting screws pass through the damping plate and the fixing plate in sequence and extend to the top of the fixing plate. Nuts are threaded onto the surface of the mounting screws and located at the top of the fixing plate to ensure tight assembly of the base plate, adaptive damping components and damping plate of the adaptive damping base, while facilitating disassembly and maintenance. The locking design of the nuts enhances the structural rigidity and prevents the components from loosening due to vibration.
[0012] Furthermore, both sides of the base plate are fixed with mounting seats, and mounting bolts are installed through the surface of the mounting seats to ensure tight assembly of all components of the adaptive shock-absorbing base, while facilitating disassembly and maintenance; the locking design of the nuts enhances the structural rigidity and prevents vibration from causing the components to loosen.
[0013] Furthermore, the mounting groove of the rubber mounting seat is a blind groove, and the mounting plate is completely embedded in the mounting groove and flush with the surface of the rubber mounting seat. The blind groove design avoids the mounting plate protruding, prevents external foreign objects from interfering with or colliding with and damaging the hydraulic column and shock-absorbing spring, and at the same time keeps the surface of the rubber mounting seat flat and optimizes the compactness of the structure.
[0014] Furthermore, the hydraulic column is a hollow cylinder, and the hydraulic oil filling volume inside is %-% of the column volume, with an appropriate amount of hydraulic oil expansion space reserved to avoid overfilling, which would cause leakage or structural damage due to hydraulic oil volume expansion at high temperatures. At the same time, it ensures sufficient hydraulic oil volume to achieve the adaptive resistance adjustment function.
[0015] Furthermore, the helical direction of the shock-absorbing spring is perpendicular to the axial direction of the hydraulic column, and the compression stroke of the shock-absorbing spring coincides with the extension stroke of the hydraulic column, ensuring that the extension direction of the shock-absorbing spring is consistent with the axial direction of the hydraulic column, avoiding interference between the spring and the hydraulic column when the spring is deformed, and improving the smoothness and efficiency of the collaborative work.
[0016] Furthermore, the base plate is detachably connected to the fixed plate by mounting screws and nuts, and the shock-absorbing plate is sandwiched between the base plate and the fixed plate, clearly defining the installation position of the shock-absorbing plate between the base plate and the fixed plate. The detachable design facilitates the replacement or maintenance of the shock-absorbing plate and the buffer spring, reducing maintenance costs.
[0017] Furthermore, the fixing base is an L-shaped bent plate, with its vertical section welded to the side of the base plate and its horizontal section having through holes for fixing bolts to pass through. The L-shaped structure enhances the connection strength between the fixing base and the base plate, and the welding process ensures that it will not fall off during long-term use; the through holes in the horizontal section facilitate the passage of fixing bolts, achieving stable installation.
[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. This utility model uses a three-stage buffering mechanism of adaptive damping components, damping plates, and buffer springs to absorb vibration energy in layers, greatly reducing the impact of external vibration on the relay body, reducing the risk of contact loosening and malfunction, and improving the stability and reliability of the relay in complex vibration environments.
[0019] 2. The hydraulic oil resistance inside the hydraulic column of this utility model changes dynamically with the vibration intensity. The greater the vibration, the stronger the hydraulic oil flow resistance, and the force of the expansion and contraction in tandem with the shock-absorbing spring is increased synchronously, effectively absorbing and consuming vibration energy. Compared with the traditional single shock-absorbing structure, it can better cope with vibrations of different intensities. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adaptive shock absorber structure of this utility model; Figure 3 This is a schematic diagram of the buffer spring structure of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.
[0021] Reference numerals: 1-Fixing plate; 2-Relay body; 3-Adaptive vibration damping base; 31-Base plate; 32-Adaptive vibration damping component; 321-Rubber mounting seat; 322-Mounting groove; 323-Mounting plate; 324-Hydraulic column; 325-Vibration damping spring; 33-Vibration damping plate; 34-Buffer spring; 35-Mounting screw; 36-Nut; 4-Fixing seat; 5-Fixing bolt. Detailed Implementation
[0022] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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. Without further limitations, 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 said element.
[0023] The features and performance of this utility model will be further described in detail below with reference to the embodiments.
[0024] Please see Figures 1-4 This utility model provides a technical solution: a relay protection relay with an adaptive shock-absorbing base, comprising: A fixed plate 1, and a relay body 2 fixedly mounted on its top; An adaptive vibration damping base 3 is disposed at the bottom of the fixed plate 1 to buffer and dampen the relay body 2; wherein, The adaptive damping base 3 includes a base plate 31 disposed at the bottom of the fixed plate 1, and an adaptive damping component 32 for adaptive damping is installed on the top of the base plate 31. The top of the adaptive damper 32 is fixedly mounted with a damping plate 33, and a buffer spring 34 for further cushioning is installed between the damping plate 33 and the fixed plate 1.
[0025] Reference Figure 1 , Figure 2 , Figure 3 as well as Figure 4As shown, the adaptive damping component 32 includes two rubber mounting seats 321 that are respectively fixedly installed on the adjacent sides of the fixed plate 1 and the base plate 31. Each of the two rubber mounting seats 321 has several mounting grooves 322 on its adjacent side. Each of the several mounting grooves 322 has a mounting plate 323 fixedly installed inside. A hydraulic column 324 is fixedly installed between every two mounting plates 323, and the hydraulic column 324 is filled with hydraulic oil. A shock-absorbing spring 325 is fitted on the surface of the hydraulic column 324, and the top and bottom ends of the shock-absorbing spring 325 are fixedly connected to the mounting plate 323. In this embodiment, when the relay body 2 is subjected to external vibration, the vibration is transmitted to the rubber mounting base 321 through the fixing plate 1, and then acts on the hydraulic column 324 and the shock-absorbing spring 325. The hydraulic oil in the hydraulic column 324 will generate different flow resistance according to the vibration intensity, so that the hydraulic column 324 will perform adaptive extension and contraction. At the same time, the shock-absorbing spring 325 will also extend and contract with the magnitude of the vibration. The two cooperate with each other to absorb and consume vibration energy.
[0026] Reference Figure 1 as well as Figure 2 As shown, there are four hydraulic columns 324, and the four hydraulic columns 324 are all equidistantly installed around the two rubber mounting seats 321. In this embodiment, four hydraulic columns 324 equidistantly distributed around the perimeter can evenly withstand vibrations from all directions. When vibrations are transmitted, the four hydraulic columns 324 simultaneously perform adaptive extension and retraction actions to share and process the vibration energy, making the force on the entire adaptive damping component 32 more balanced.
[0027] Reference Figure 3 As shown, there are several buffer springs 34, and the buffer springs 34 are all installed at equal intervals between the shock-absorbing plate 33 and the fixed plate 1 to further reduce the impact of vibration on the relay body 2. In this embodiment, the buffer spring 34 forms a multiple buffering mechanism, which can handle vibration more carefully and provide more reliable protection for the relay body 2. Even if the adaptive damping element 32 fails to completely eliminate vibration, the buffer spring 34 can minimize the remaining vibration impact.
[0028] Reference Figure 1 As shown, mounting screws 35 are fixedly installed around the top of the base plate 31, and the top ends of the four mounting screws 35 pass through the damping plate 33 and the fixing plate 1 in sequence and extend to the top of the fixing plate 1. Nuts 36 are threadedly connected to the surface of the mounting screws 35 and the top of the fixing plate 1. In this embodiment, the installation of screws 35 and nuts 36 enhances the structural stability of the entire device, ensures close cooperation between the components of the adaptive damping base 3, enables the damping system to function more effectively, and improves the overall reliability and durability of the device.
[0029] Reference Figure 1 As shown, a fixing seat 4 is fixedly installed on both sides of the base plate 31, and a fixing bolt 5 is installed through the surface of the fixing seat 4 to fix the device in a designated position. In this embodiment, the device can be easily installed to maintain a stable installation state in different working environments, avoiding a decrease in shock absorption effect due to device shaking or displacement.
[0030] Working principle: When the relay body 2 is subjected to external vibration during actual operation, the vibration is first transmitted to the fixed plate 1. The adaptive damping base 3 below the fixed plate 1 then begins to function. The hydraulic column 324 and the damping spring 325 in the adaptive damping component 32 work together. The hydraulic oil inside the hydraulic column 324 generates different resistances according to the vibration intensity, causing the hydraulic column 324 to adaptively extend and retract. At the same time, the damping spring 325 also extends and retracts accordingly. Together, they absorb and dissipate a portion of the vibration energy. The vibration, after initial buffering by the adaptive damping component 32, is transmitted to the damping plate 33, which further absorbs and dissipates the vibration energy. After dispersing and absorbing vibration energy, the buffer spring 34 further buffers the remaining vibration, further reducing the impact of vibration on the relay body 2. The fixing seats 4 and fixing bolts 5 on both sides of the base plate 31 fix the entire device in the designated position, ensuring that the device will not shift during operation. The mounting screws 35 and nuts 36 tightly connect the fixing plate 1, the shock-absorbing plate 33 and the base plate 31 together, enhancing the overall stability of the device. Through this series of shock absorption and buffering processes, the impact of external vibration on the relay body 2 is effectively reduced, ensuring the normal operation of the relay.
[0031] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.
Claims
1. A relay protection relay with an adaptive vibration damping base, characterized in that, include: A fixed plate (1) is fixedly mounted on the top of the fixed plate (1) with a relay body (2); an adaptive damping base (3) is provided at the bottom of the fixed plate (1), the adaptive damping base (3) includes a base plate (31), an adaptive damping component (32) is provided on the top of the base plate (31), and a damping plate (33) is provided on the top of the adaptive damping component (32); the adaptive damping component (32) includes two rubber mounting seats (321) respectively fixed on the adjacent side of the fixed plate (1) and the base plate (31), and several mounting grooves (322) are opened on the adjacent side of the two rubber mounting seats (321), a mounting plate (323) is fixed in the mounting groove (322), and a hydraulic column (324) is fixed between every two mounting plates (323), and a damping spring (325) is sleeved on the surface of the hydraulic column (324), and the two ends of the damping spring (325) are fixedly connected to the mounting plate (323).
2. The relay protection relay according to claim 1, characterized in that, The number of hydraulic columns (324) is four, and the four hydraulic columns (324) are equidistantly installed around the two rubber mounting seats (321).
3. The relay protection relay according to claim 1, characterized in that, The shock-absorbing base (3) is also provided with a buffer spring (34), which is installed equidistantly between the shock-absorbing plate (33) and the fixed plate (1).
4. The relay protection relay according to claim 1, characterized in that, The base plate (31) is fixed with mounting screws (35) around its top. The top ends of the four mounting screws (35) pass through the damping plate (33) and the fixing plate (1) in sequence and extend to the top of the fixing plate (1). Nuts (36) are threaded onto the surface of the mounting screws (35) and located at the top of the fixing plate (1).
5. The relay protection relay according to claim 1, characterized in that, Both sides of the base plate (31) are fixed with fixing seats (4), and fixing bolts (5) are installed through the surface of the fixing seats (4).
6. The relay protection relay according to claim 1, characterized in that, The mounting groove (322) of the rubber mounting base (321) is a blind groove, and the mounting plate (323) is completely embedded in the mounting groove (322) and flush with the surface of the rubber mounting base (321).
7. The relay protection relay according to claim 1, characterized in that, The hydraulic column (324) is a hollow cylinder, and the amount of hydraulic oil inside it is 80%-95% of the column volume.
8. The relay protection relay according to claim 1, characterized in that, The helical direction of the shock-absorbing spring (325) is perpendicular to the axial direction of the hydraulic column (324), and the compression stroke of the shock-absorbing spring (325) coincides with the extension stroke of the hydraulic column (324).
9. The relay protection relay according to claim 1, characterized in that, The base plate (31) is detachably connected to the fixing plate (1) by mounting screws (35) and nuts (36), and the shock-absorbing plate (33) is sandwiched between the base plate (31) and the fixing plate (1).
10. The relay protection relay according to claim 5, characterized in that, The fixing seat (4) is an L-shaped bent plate, the vertical section of which is welded to the side of the base plate (31), and the horizontal section has a through hole for the fixing bolt (5) to pass through.