Eddy current damping shock absorber frame
By integrating active airflow cooling and impurity treatment into a single system, the problem of low heat dissipation efficiency and impurity introduction of traditional eddy current damping shock absorbers in high-power, high-frequency vibration scenarios is solved, achieving stable damping force output and improved device reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA YONGTONG MECHANICAL EQUIP MFG CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional eddy current damping vibration damper has low heat dissipation efficiency in high-power, high-frequency vibration scenarios, and active heat dissipation methods are prone to introducing impurities, affecting magnetic field distribution and device lifespan.
An active airflow cooling system is adopted, which intercepts impurities through filter components and cleans them using a ring filter and a motor-driven reverse airflow, forming a highly efficient integrated system for heat dissipation and impurity treatment.
It achieves efficient heat dissipation, stable damping force output, avoids impurities from affecting the magnetic field and component life, and improves the reliability and service life of the device.
Smart Images

Figure CN224339387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shock absorber technology, specifically to an eddy current damping shock absorber. Background Technology
[0002] Eddy current damping vibration damper frames convert the mechanical energy of vibration into heat energy through the eddy current effect to achieve vibration damping. The Joule heat generated in this process needs to be dissipated in time to avoid overheating of the conductor. Traditional eddy current damping vibration damper frames typically use heat dissipation vents for heat dissipation. However, this passive heat dissipation method relies solely on natural convection for heat transfer, resulting in low heat dissipation efficiency. It is difficult to meet the heat dissipation requirements of high-power, high-frequency vibration scenarios, and it can easily lead to conductor temperature rise, causing changes in resistivity, which in turn causes fluctuations or attenuation of damping force, affecting the stability of the vibration damping effect. At the same time, some existing technologies use cooling fans for active cooling to improve heat dissipation efficiency. However, when the cooling fans are working, they create air convection, which can easily draw dust, particulate matter, and other impurities from the external environment into the vibration damper frame. These impurities not only adhere to the surfaces of core components such as conductors and permanent magnets, affecting the magnetic field distribution and eddy current generation, but may also accelerate the corrosion and wear of components, reduce the service life of the device, and even cause electrical failures and other safety hazards.
[0003] Therefore, this utility model provides an eddy current damping shock absorber frame. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides an eddy current damping shock absorber frame to solve the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an eddy current damping shock absorber frame, comprising a support base and several shock absorber housings. Each shock absorber housing contains a magnet, a support rod, and a guide shaft. A filter component is also provided within the shock absorber housing. An air inlet pipe and an exhaust pipe are respectively provided on both sides of the shock absorber housing. An annular inner groove for accommodating the filter component is formed within the shock absorber housing. Two connecting holes are formed within the shock absorber housing, corresponding to the positions of the air inlet pipe and the exhaust pipe, respectively. The filter component includes two support rings and an annular filter screen. The annular filter screen is installed between the two support rings. Both the support rings and the annular filter screen are rotatably connected to the inner wall of the corresponding annular inner groove. The annular filter screen is located between the inner cavity of the shock absorber housing and the air inlet pipe, and between the inner cavity of the shock absorber housing and the exhaust pipe.
[0006] Preferably, a mounting plate is installed at the top of the guide shaft for connecting to the bottom of the object that needs support.
[0007] Preferably, a limiting plate is installed at the bottom of the guide shaft, and a guide limiting tube is installed on the inner side of the bottom of the shock absorber housing. The limiting plate is slidably connected to the inner wall of the corresponding guide limiting tube.
[0008] Preferably, the guide limiting tube has a plurality of vent holes on its side wall. The plurality of vent holes are divided into two groups and are arranged in a ring array. The two groups of vent holes are located at the upper and lower parts of the guide limiting tube, respectively.
[0009] Preferably, a plurality of partition plates are installed on the outer side of the annular filter screen, and the partition plates are slidably connected to the inner wall of the corresponding annular inner groove.
[0010] Preferably, the support base is provided with an air supply ring pipe and a heat dissipation air supply mechanism. The air supply ring pipe is connected to the ends of several air inlet pipes, and the heat dissipation air supply mechanism supplies airflow to the inside of the air supply ring pipe.
[0011] Beneficial effects
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] (1) This utility model forms an active airflow heat dissipation system through an external air supply structure, replacing the traditional passive heat dissipation, and simultaneously delivers sufficient heat dissipation airflow to multiple shock absorber housings, efficiently removing Joule heat generated by eddy currents, solving the problem of conductor overheating in high-power, high-frequency vibration scenarios, reducing resistivity fluctuations caused by temperature changes, stabilizing damping force output, and ensuring the consistency and reliability of shock absorption effect.
[0014] (2) This utility model intercepts dust and particulate matter in the airflow through the annular filter screen of the filter component, avoiding impurities from adhering to core components such as magnets and conductors and affecting the generation of magnetic fields and eddy currents; the airflow backflushing realizes the active cleaning of impurities, reducing the need for manual maintenance, preventing corrosion, wear and electrical faults caused by impurities, maintaining the performance stability of core components, significantly extending the service life of the device, and reducing safety hazards. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the internal structure of the shock absorber of this utility model. Figure 1 ;
[0017] Figure 3 This is a schematic diagram of the internal structure of the shock absorber of this utility model. Figure 2 ;
[0018] Figure 4 This is an enlarged structural schematic diagram of the filter component in this utility model.
[0019] In the diagram: 1. Support base; 2. Shock absorber housing; 21. Magnet; 22. Support rod; 23. Guide shaft; 231. Mounting plate; 232. Limiting plate; 24. Air inlet pipe; 25. Exhaust pipe; 26. Annular inner groove; 27. Connecting hole; 28. Guide limiting tube; 281. Vent hole; 3. Filter component; 31. Support ring; 32. Annular filter screen; 33. Divider plate; 4. Air supply ring pipe; 41. Heat dissipation and air supply mechanism. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 The eddy current damping shock absorber frame includes a support base 1 and several shock absorber housings 2. The shock absorber housings 2 are equipped with magnets 21, support rods 22 and guide shafts 23. The shock absorber housings 2 are equipped with filter components 3.
[0022] The shock absorber housing 2 has an intake pipe 24 and an exhaust pipe 25 on both sides. The shock absorber housing 2 has an annular inner groove 26 for accommodating the filter component 3. The shock absorber housing 2 has two connecting holes 27, which correspond to the positions of the intake pipe 24 and the exhaust pipe 25, respectively.
[0023] It should be noted that the two connecting holes 27 described in this embodiment are symmetrically distributed.
[0024] The filter component 3 includes two support rings 31 and an annular filter screen 32. The annular filter screen 32 is installed between the two support rings 31. Both the support rings 31 and the annular filter screen 32 are rotatably connected to the inner wall of the corresponding annular inner groove 26. The annular filter screen 32 is located between the inner cavity of the shock absorber housing 2 and the intake pipe 24 and between the inner cavity of the shock absorber housing 2 and the exhaust pipe 25.
[0025] It should be noted that the annular filter 32 described in this embodiment intercepts impurities entering through the intake pipe 24, transfers them to the exhaust pipe 25, and cleans them by backflushing with airflow. The shock absorber housing 2 is equipped with a motor that drives the rotation of the filter component 3.
[0026] Specifically, when the eddy current damping shock absorber is working, the support base 1 provides overall support, and several shock absorber housings 2 are distributed on the base as core shock absorber units. Inside the shock absorber housing 2, the magnet 21, support rod 22, and guide shaft 23 cooperate with each other to convert the mechanical energy of vibration into heat energy based on the eddy current effect, thus achieving the purpose of shock absorption. In terms of heat dissipation and impurity treatment, when heat dissipation is required, airflow enters from the air inlet pipe 24, passes through the corresponding connection hole 27 of the air inlet pipe 24, and flows into the annular inner groove 26 that accommodates the filter component 3. The two support rings 31 of the filter component 3 support the annular filter screen 32, and both are rotatably connected to the inner wall of the annular inner groove 26. When passing through the filter screen, impurities are intercepted by the annular filter screen 32; the filtered airflow participates in heat exchange within the housing, and then exits from the exhaust pipe 25 through the corresponding connection hole 27. The active airflow channel accelerates heat transfer, solving the problem of low efficiency in traditional passive heat dissipation. In terms of impurity cleaning, the motor drives the filter component 3 to rotate. When cleaning is required, the reverse airflow of the exhaust pipe 25 back-blowing the annular filter screen 32 can remove attached impurities, preventing impurities from entering and adhering to the surface of core components such as the magnet 21, affecting the magnetic field distribution and eddy current generation. At the same time, it reduces corrosion and wear on components, solving potential problems such as reduced device lifespan and electrical failures caused by impurities.
[0027] In one embodiment of this utility model, such as Figures 1-4 As shown, a mounting plate 231 is installed at the top of the guide shaft 23 for connecting to the bottom of the object that needs support.
[0028] Specifically, the mounting plate 231 at the top of the guide shaft 23 serves as a connection interface, directly docking and fixing to the bottom of the supported object. This allows the load of the object to be transferred to the guide shaft 23 through the mounting plate 231. Then, through components such as the magnet 21 and support rod 22 inside the shock absorber housing 2, the mechanical energy of the vibration is converted into heat energy and dissipated by relying on the eddy current effect. At the same time, the filter component 3, together with the air intake pipe 24 and the exhaust pipe 25, completes heat dissipation and impurity control, realizing the integrated operation of shock absorption and heat dissipation.
[0029] In one embodiment of this utility model, such as Figures 1-4 As shown, a limiting plate 232 is installed at the bottom of the guide shaft 23, and a guide limiting tube 28 is installed on the inner side of the bottom of the shock absorber housing 2. The limiting plate 232 is slidably connected to the inner wall of the corresponding guide limiting tube 28.
[0030] It should be noted that the guide limiting tube 28 described in this embodiment slides and limits the guide shaft 23 through the limiting plate 232.
[0031] Specifically, when the shock absorber is displaced by vibration, the guide shaft 23 moves with the supported object, and the limiting plate 232 slides within the guide limiting tube 28. With the structural constraint of the guide limiting tube 28, the movement direction and displacement range of the guide shaft 23 are limited, ensuring that the guide shaft 23 slides stably along the preset trajectory. This assists in the coordinated operation of various components during the eddy current damping shock absorption process, maintains the stability of the internal structure of the shock absorber, and ensures the reliable realization of the eddy current effect, heat dissipation, impurity filtration, and other functions.
[0032] In one embodiment of this utility model, such as Figures 1-4 As shown, the guide limiting tube 28 has several vent holes 281 on its side wall. The vent holes 281 are divided into two groups and are arranged in a ring array. The two groups of vent holes 281 are located at the upper and lower parts of the guide limiting tube 28, respectively.
[0033] It should be noted that the vent 281 described in this embodiment allows air to be discharged and enter when the limiting plate 232 moves inside the guide limiting tube 28.
[0034] Specifically, when the limiting plate 232 at the bottom of the guide shaft 23 slides along the inner wall of the guide limiting tube 28 with vibration, the space on the upper and lower sides of the limiting plate 232 will change in volume due to the sliding: when the limiting plate 232 slides upward, the volume of the space below it decreases, and air is discharged through the lower vent 281; at the same time, the volume of the space above it increases, and external air enters through the upper vent 281; when the limiting plate 232 slides downward, the volume of the space above it decreases, and air is discharged through the upper vent 281; the volume of the space below it increases, and external air enters through the lower vent 281; the air discharge and entry through the vent 281 eliminates the resistance caused by air compression or vacuum when the limiting plate 232 slides, ensuring that the limiting plate 232 slides smoothly in the guide limiting tube 28, ensuring that the guide shaft 23 moves stably along the preset trajectory, avoiding interference from air resistance with the coordinated operation of various components during the eddy current damping vibration reduction process, and maintaining the stability and reliability of the vibration reduction system.
[0035] In one embodiment of this utility model, such as Figures 1-4 As shown, several partition plates 33 are installed on the outer side of the annular filter screen 32, and the partition plates 33 are slidably connected to the inner wall of the corresponding annular inner groove 26.
[0036] It should be noted that the several partition plates 33 described in this embodiment divide the annular filter screen 32 into several filter areas.
[0037] Specifically, when the motor drives the filter component 3 to rotate, the partition plate 33 rotates synchronously with the annular filter screen 32. This not only ensures the overall rotation stability of the filter component, but also allows the reverse airflow to act more concentratedly on each filtration area during the airflow backflushing cleaning stage, enhancing the cleaning effect on impurities in different areas, ensuring that impurities in each filtration area can be effectively blown away, maintaining the continuous filtration capacity of the annular filter screen 32, and further ensuring the cleanliness of the airflow entering the shock absorber housing 2.
[0038] In one embodiment of this utility model, such as Figures 1-4 As shown, the support base 1 is provided with an air supply ring pipe 4 and a heat dissipation air supply mechanism 41. The air supply ring pipe 4 is connected to the ends of several air inlet pipes 24, and the heat dissipation air supply mechanism 41 supplies airflow to the inside of the air supply ring pipe 4.
[0039] It should be noted that the heat dissipation air supply mechanism 41 described in this embodiment is a cooling fan or an air pump. The heat dissipation air supply mechanism 41 delivers heat dissipation airflow to several shock absorber housings 2 simultaneously through the air supply ring pipe 4.
[0040] Specifically, the air supply ring pipe 4 on the support base 1 is connected to the ends of the air inlet pipes 24 of multiple shock absorber housings 2, forming a centralized airflow distribution channel; the heat dissipation air supply mechanism 41 acts as an active air source, synchronously supplying heat dissipation airflow to each air inlet pipe 24 through the air supply ring pipe 4; after being distributed by the air supply ring pipe 4, the airflow enters the corresponding shock absorber housing 2, dissipating the Joule heat generated by the eddy current effect, and finally being discharged from the exhaust pipe 25; through the centralized air supply design of the air supply ring pipe 4, synchronous airflow supply to multiple shock absorber housings 2 is achieved, which, together with the active air supply capability of the heat dissipation air supply mechanism 41, enhances the stability and intensity of the overall heat dissipation airflow, ensuring that each shock absorber unit can obtain sufficient heat dissipation airflow, improving heat dissipation efficiency while ensuring the consistency of heat dissipation of multiple units.
[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0042] Working Principle: This eddy current damping shock absorber frame is based on a support base 1 and achieves its core shock absorption function through several shock absorber housings 2. The magnets 21, support rods 22, and guide shafts 23 inside the shock absorber housings 2 cooperate to convert the mechanical energy of vibration into heat energy using the eddy current effect, thus completing the shock absorption. The mounting plate 231 at the top of the guide shaft 23 connects to the supported object, and the bottom limiting plate 232 slides within the guide limiting tube 28 to restrict the movement trajectory and ensure structural stability. The vent holes 281 at the top and bottom of the guide limiting tube 28 eliminate air resistance during sliding. The heat dissipation and air supply mechanism 41 of the support base 1 delivers air synchronously to each air inlet pipe 24 through the air supply ring pipe 4. The airflow enters the annular inner groove 26 through the connecting hole 27 and intercepts impurities through the annular filter screen 32 of the filter component 3. After filtration, the airflow exchanges heat in the housing and is discharged from the exhaust pipe 25. The annular filter screen 32 is driven to rotate by a motor. The outer partition plate 33 separates the filtration area and enhances stability. During cleaning, the reverse airflow blows back to remove impurities, ensuring heat dissipation efficiency and the cleanliness of the core components.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An eddy current damping shock absorber frame, comprising a support base (1) and a plurality of shock absorber housings (2), wherein each shock absorber housing (2) is provided with a magnet (21), a support rod (22), and a guide shaft (23), characterized in that, A filter component (3) is provided inside the shock absorber housing (2), wherein, The shock absorber housing (2) is provided with an air inlet pipe (24) and an exhaust pipe (25) on both sides respectively. An annular inner groove (26) for accommodating the filter component (3) is provided inside the shock absorber housing (2). Two connecting holes (27) are provided inside the shock absorber housing (2), and the two connecting holes (27) correspond to the positions of the air inlet pipe (24) and the exhaust pipe (25) respectively. The filter component (3) includes two support rings (31) and an annular filter screen (32). The annular filter screen (32) is installed between the two support rings (31). Both the support rings (31) and the annular filter screen (32) are rotatably connected to the inner wall of the corresponding annular inner groove (26). The annular filter screen (32) is located between the inner cavity of the shock absorber housing (2) and the air intake pipe (24), and between the inner cavity of the shock absorber housing (2) and the exhaust pipe (25).
2. The eddy current damping shock absorber frame according to claim 1, characterized in that, The top of the guide shaft (23) is fitted with a mounting plate (231) for connecting to the bottom of the object that needs support.
3. The eddy current damping shock absorber frame according to claim 1, characterized in that, A limiting plate (232) is installed at the bottom of the guide shaft (23), and a guide limiting tube (28) is installed on the inner side of the bottom of the shock absorber housing (2). The limiting plate (232) is slidably connected to the inner wall of the corresponding guide limiting tube (28).
4. The eddy current damping shock absorber frame according to claim 3, characterized in that, The guide limiting tube (28) has several ventilation holes (281) on its side wall. The ventilation holes (281) are divided into two groups and are arranged in a ring array. The two groups of ventilation holes (281) are located at the upper and lower parts of the guide limiting tube (28), respectively.
5. The eddy current damping shock absorber frame according to claim 1, characterized in that, A plurality of partition plates (33) are installed on the outer side of the annular filter screen (32), and the partition plates (33) are slidably connected to the inner wall of the corresponding annular inner groove (26).
6. The eddy current damping shock absorber frame according to claim 1, characterized in that, The support base (1) is provided with an air supply ring pipe (4) and a heat dissipation air supply mechanism (41). The air supply ring pipe (4) is connected to the ends of several air inlet pipes (24). The heat dissipation air supply mechanism (41) supplies airflow to the inside of the air supply ring pipe (4).