Eddy current tuned mass damper, compressor assembly and air conditioner

Abstract

The present invention provides an eddy current tuned mass damper, a compressor assembly and an air conditioner. The eddy current tuned mass damper comprises: a damper housing (1), and a magnet (2) and a conductor plate (3) arranged inside the damper housing (1), wherein the magnet (2) and the conductor plate (3) are arranged at intervals, and the interval between the magnet (2) and the conductor plate (3) can be adjusted; and further comprises a damping adjustment screw (4), which can drive the conductor plate (3) to move closer to or away from the magnet (2) when the damping adjustment screw (4) rotates. The present invention can adjust the structural form as required, adjust the damping of the damper as required, and effectively improve the adaptability and versatility of the eddy current tuned mass damper; it has strong robustness, and can play a good vibration reduction effect on the variable frequency vibration damping structure; and can absorb and consume the vibration energy of both fixed frequency and variable frequency compressors.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioners, and in particular relates to an eddy current tuned mass damper, a compressor assembly and an air conditioner. Background Art

[0002] The compressor is one of the core components of the air conditioner and is also an important source of vibration noise of the air conditioner outdoor unit. When the compressor is working, due to the periodic movement of the eccentric rotor inside it, it will inevitably generate vibration noise of a certain frequency. The compressor vibration reduction method in the prior art mainly uses vibration reduction pads to attenuate the vibration energy generated during the operation of the compressor and transmit it to the bottom plate. However, the vibration of the compressor itself is still very obvious, and the vibration will also spread along the path to the pipes, sheet metal parts, etc. connected to it.

[0003] Patents CN103983054A and CN204373285U both disclose a compressor assembly and a liquid reservoir thereof, wherein a mass tuned damper device is designed and installed in the internal structure of the liquid reservoir to reduce the vibration of the liquid reservoir itself, thereby reducing the overall noise vibration of the air conditioner outdoor unit. However, these inventions have the following problems: (1) The structure is located inside the liquid reservoir, which will affect the direction of the fluid inside the liquid reservoir, and due to the formation of a certain obstruction to the channel, there is a possibility of generating regenerative noise (2) The overall structural frequency of the damper is a fixed value, which can only meet the vibration suppression of a small range of specific frequencies. When the frequency fluctuation is large (especially for variable frequency machines), its vibration reduction effect is not obvious or even has no vibration reduction effect (3) The damper has no damping adjustment device, which makes it difficult to meet the design requirements of the optimal tuned mass damper (4) The structure is located inside the cylinder body, which makes assembly and subsequent maintenance difficult, and the overall structural form is difficult to adjust.

[0004] In addition, the existing eddy current tuned mass damper has the defect that the damping cannot be adjusted, resulting in poor adaptability and general performance. In addition, the installation of the existing eddy current tuned mass damper is restricted and can usually only reduce vibrations in a specific direction. The installation method cannot be changed according to actual conditions. Therefore, the vibration reduction adaptability is often limited and the vibration reduction effect is poor.

[0005] Since the existing eddy current tuned mass damper in the prior art has the problem that the damping cannot be adjusted, resulting in poor adaptability and general performance, and the existing eddy current tuned mass damper can usually only reduce vibrations in a specific direction, has limited adaptability, and has poor vibration reduction effect and other technical problems, the present invention studies and designs an eddy current tuned mass damper, a compressor assembly and an air conditioner. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the eddy current tuned mass damper in the prior art that the damping cannot be adjusted, resulting in poor adaptability and general performance, thereby providing an eddy current tuned mass damper, a compressor assembly and an air conditioner.

[0007] The present invention provides an eddy current tuned mass damper, comprising:

[0008] A damper housing, and a magnet and a conductor plate arranged inside the damper housing, wherein the magnet and the conductor plate are arranged at an interval, and the interval between the magnet and the conductor plate can be adjusted; and also includes a damping adjustment screw, which can drive the conductor plate to move closer to or away from the magnet when the damping adjustment screw rotates.

[0009] Preferably,

[0010] The conductor plate is provided with a first through hole penetrating its two back-to-back walls, the inner wall of the first through hole is provided with an internal thread, the outer peripheral wall of the damping adjustment screw is provided with an external thread, and the first through hole can allow the damping adjustment screw to pass therethrough, so that when the damping adjustment screw rotates, it can drive the conductor plate to move closer to or away from the magnet.

[0011] Preferably,

[0012] The first end of the damping adjustment screw is connected to the first side wall of the damper housing, the second end of the damping adjustment screw is connected to the second side wall of the damper housing, and the first side wall is opposite to the second side wall.

[0013] Preferably,

[0014] The position on the damping adjustment screw that matches the conductor plate is located between the first end and the second end.

[0015] Preferably,

[0016] The magnet is a permanent magnet; and / or the damping adjustment screw is a cylinder, and when the damping adjustment screw rotates, the conductor plate can move in accordance with the axis of the damping adjustment screw.

[0017] Preferably,

[0018] A stiffness adjustment screw is also connected to the magnet. When the damper housing includes a first side wall, a second through hole is also penetrated through the first side wall of the damper housing. The stiffness adjustment screw can be inserted into the second through hole. The outer peripheral wall of the stiffness adjustment screw is provided with an external thread, and the inner peripheral wall of the second through hole is provided with an internal thread matching the external thread of the stiffness adjustment screw, so that when the stiffness adjustment screw rotates, the distance between the magnet and the first side wall can change.

[0019] Preferably,

[0020] When the damper housing includes a first side wall and a second side wall, a guide rod is further provided inside the damper housing and between the first side wall and the second side wall, and a third through hole is further provided on the conductor plate in a manner of penetrating its two opposite wall surfaces, and the guide rod can be inserted into the third through hole so that the conductor plate can slide along the direction of the guide rod.

[0021] Preferably,

[0022] One end of the guide rod is connected to the first side wall, and the other end of the guide rod is connected to the second side wall.

[0023] Preferably,

[0024] When the damping adjustment screw is a cylinder, the guide rod is also a cylinder, and the axis of the guide rod is parallel to the axis of the damping adjustment screw.

[0025] Preferably,

[0026] A first boss is disposed at the lower end of the conductor plate and is in contact with the first through hole. The first boss has a third through hole that is intersecting with the first through hole and can allow the damping adjustment screw to pass through.

[0027] Preferably,

[0028] A second boss is disposed at the lower end of the conductor plate and is in contact with the third through hole. The second boss has a fourth through hole that penetrates the third through hole and can allow the guide rod to pass through.

[0029] The present invention also provides a compressor assembly, which includes the eddy current tuned mass damper as described in any of the preceding items, and also includes a compressor, wherein the eddy current tuned mass damper is arranged on the top and / or side wall of the compressor.

[0030] The present invention also provides an air conditioner, which comprises the aforementioned compressor assembly.

[0031] The present invention provides an eddy current tuned mass damper, a compressor assembly and an air conditioner having the following characteristics:

[0032] Beneficial effects:

[0033] 1. The present invention makes the magnets and the conductor plate inside the damper housing into a structural form in which the spacing can be adjusted as needed, so that the damping of the eddy current tuned mass damper can be adjusted as needed, thereby effectively improving the adaptability and versatility of the eddy current tuned mass damper; in particular, the structural form of the damping adjustment screw is adopted, the damping adjustment screw is inserted into the first through hole of the conductor plate, and through threaded engagement, the position of the conductor plate can be adjusted and changed by rotating the damping adjustment screw, thereby realizing the movement of the conductor plate to move closer or farther relative to the magnet, and realizing the damping adjustment function and effect of the damper;

[0034] 2. The eddy current tuned mass damper of the present invention realizes the generation of non-contact damping force through the eddy current effect, which greatly enhances the service life of the damper. The eddy current tuned mass damper has an infinitely variable frequency and variable damping structure, which can be adjusted and matched for different types of compressors; the eddy current tuned mass damper has strong robustness and can have a good vibration reduction effect on the variable frequency vibration-damped structure; the external damper structure simplifies the assembly and subsequent maintenance work, and will not affect the working state of the compressor itself; it can absorb and consume the vibration energy of both fixed frequency and variable frequency compressors, and suppress the vibration noise of the compressor itself, thereby making the compressor run more smoothly and improving the comfort of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 1 is a front structural schematic diagram of an eddy current tuned mass damper of the present invention installed on a compressor (Example 1);

[0036] Figure 2 yes Figure 1 Schematic diagram of the top view structure in ;

[0037] Figure 3 yes Figure 1 Schematic diagram of the front internal cross-sectional structure of the China Electric Eddy Current Tuned Mass Damper;

[0038] Figure 4 yes Figure 3 A top view of the structure;

[0039] Figure 5 1 is a front structural schematic diagram of an eddy current tuned mass damper of the present invention installed on a compressor (Example 2);

[0040] Figure 6 yes Figure 5 Schematic diagram of the top view structure.

[0041] The reference numerals in the figure represent:

[0042] 1. Damper housing; 11. First side wall; 12. Second side wall; 13. Second through hole; 2. Magnet; 3. Conductor plate; 31. First through hole; 32. Third through hole; 33. First boss; 34. Second boss; 4. Damping adjustment screw; 5. Stiffness adjustment screw; 6. Guide rod; 100. Eddy current tuned mass damper; 200. Compressor. DETAILED DESCRIPTION

[0043] like Figure 1-6 As shown, the present invention provides an eddy current tuned mass damper, which includes:

[0044] A damper housing 1, and a magnet 2 and a conductor plate 3 arranged inside the damper housing 1, wherein the magnet 2 and the conductor plate 3 are spaced apart and the spacing between the magnet 2 and the conductor plate 3 can be adjusted; and a damping adjustment screw 4 is also included, which can drive the conductor plate 3 to move closer to or away from the magnet 2 when the damping adjustment screw 4 rotates.

[0045] The present invention makes the magnets and the conductor plate inside the damper housing into a structural form in which the spacing can be adjusted as needed, so that the damping of the eddy current tuned mass damper can be adjusted as needed, thereby effectively improving the adaptability and versatility of the eddy current tuned mass damper; in particular, a damping adjustment screw structure is adopted, the damping adjustment screw is inserted into the first through hole of the conductor plate, and through threaded engagement, the position of the conductor plate can be adjusted and changed by rotating the damping adjustment screw, thereby realizing the movement of the conductor plate towards or away from the magnet, thereby realizing the damping adjustment function and effect of the damper.

[0046] The eddy current tuned mass damper of the present invention realizes the generation of non-contact damping force through the eddy current effect, which greatly enhances the service life of the damper. The eddy current tuned mass damper is a structure with infinitely variable frequency and variable damping, and can be adjusted and matched for different types of compressors; the eddy current tuned mass damper has strong robustness and can play a good vibration reduction effect on the variable frequency vibration-damped structure; the external damper structure simplifies the assembly and subsequent maintenance work, and will not affect the working state of the compressor itself; the vibration energy of both fixed frequency and variable frequency compressors can be well absorbed and consumed, and the vibration noise of the compressor itself can be suppressed, thereby making the compressor run more smoothly and improving the comfort of the air conditioner.

[0047] The present invention designs an eddy current tuned mass damper for reducing the vibration of the compressor itself. The damper works in such a way that when its natural frequency is consistent with the vibration frequency of the compressor, the energy of the compressor will be transferred to the magnet inside the damper, the magnet and the conductor plate will produce relative displacement to form eddy currents in the conductor plate, and finally the kinetic energy will be converted into heat energy for dissipation, thereby suppressing the vibration of the compressor.

[0048] The present invention proposes a novel damper structure for compressor vibration reduction that integrates the traditional tuned mass damper and the eddy current energy dissipation principle. The damper achieves the purpose of adjusting the equivalent mass and equivalent stiffness of the damper by matching the permanent magnet with weights of different masses and adjusting the elongation of the stiffness adjustment screw. The position gap between the conductor plate and the permanent magnet is adjusted by using the damping adjustment screw to achieve the purpose of changing the eddy current damping size.

[0049] Preferably,

[0050] The conductor plate 3 is provided with a first through hole 31 penetrating through its two opposite walls, the inner wall of the first through hole 31 is provided with an internal thread, the outer wall of the damping adjustment screw 4 is provided with an external thread, and the first through hole 31 can allow the damping adjustment screw 4 to pass therethrough, so that when the damping adjustment screw 4 rotates, it can drive the conductor plate 3 to move closer to or away from the magnet 2.

[0051] A damping adjustment screw structure is adopted, and the damping adjustment screw is inserted into the first through hole of the conductor plate. Through threaded cooperation, the position of the conductor plate can be adjusted and changed by rotating the damping adjustment screw, thereby realizing the movement of the conductor plate towards or away from the magnet, thereby realizing the damping adjustment function and effect of the damper.

[0052] Working principle of the damper: The compressor 200 with the damper installed can be regarded as a two-degree-of-freedom vibration system, in which the compressor 200 is the main system and the damper is its subsystem. The main system works at a certain frequency. When its working frequency is consistent with the subsystem frequency, the vibration energy will be transferred, and the damper will absorb the vibration of the compressor 200. As a result, the vibration energy will be transferred to the magnet 2 of the cantilever beam-mass block system. At this time, the compressor 200 stops vibrating due to the anti-resonance effect, and the relative displacement between the magnet 2 and the conductor plate 3 will excite eddy currents on the conductor plate 3, thereby generating a damping force. Finally, the kinetic energy of the magnet 2 will also be dissipated in the form of heat energy by the eddy current effect, thereby completing the vibration reduction work of the compressor.

[0053] In order to cope with the vibration of the compressor 200 of different frequencies, the elongation of the cantilever beam can be adjusted by the stiffness adjustment screw 5, so as to adjust the natural frequency of the entire cantilever beam-mass block system. In order to design the optimal damping effect of the damper, the damping adjustment screw 4 can be adjusted to make the conductor plate 3 move up and down inside the damper along the damping adjustment screw 4 and the guide rod 6, so as to change the air gap between the magnet 2 and the conductor plate 3, thereby adjusting the damping force of different sizes. The mass size of the mass block can be accurately adjusted by replacing the mass blocks of different sizes with the gaskets of different specifications.

[0054] The damper housing 1 is detachable, so that the conductor plate 3 of different thickness and material can be replaced. The material of the conductor plate 3 can be copper, aluminum and other metals, without limitation, but the higher the conductivity of the material used for the conductor plate, the stronger the eddy current effect, and the greater the corresponding damping force. The cantilever beam-mass block system can also be replaced, and dampers of various specifications can be designed by replacing magnets of different sizes.

[0055] The shapes of the damper housing 1, the internal magnet 2 and the conductor plate 3 of the damper are not fixed. They can be cylindrical structures as shown in this model, or any other structures, such as cuboids, cubes, polyhedrons, etc., or even irregular structures.

[0056] Preferably,

[0057] The first end of the damping adjustment screw 4 is connected to the first side wall 11 of the damper housing 1, and the second end of the damping adjustment screw 4 is connected to the second side wall 12 of the damper housing 1, and the first side wall 11 is opposite to the second side wall 12. This is the preferred connection mode of the damping adjustment screw of the present invention, that is, one end is connected to the first side wall (preferably fixed), and the other end is connected to the second side wall (preferably fixed), so that the position of the damping adjustment screw itself does not change during the rotation process, but simply rotates, and the position of the conductor plate threadedly connected to it is moved through this rotation, so as to change the distance between it and the magnet and achieve the damping adjustment function.

[0058] Preferably,

[0059] The position of the damping adjustment screw 4 that cooperates with the conductor plate 3 is located between the first end and the second end. This is a further preferred structural form of the damping adjustment screw of the present invention, that is, the conductor plate is located between the first end and the second end, so that the conductor plate can move between the first end and the second end of the damping adjustment screw. Figure 3 An up and down movement is preferably shown.

[0060] Preferably,

[0061] The magnet 2 is a permanent magnet; and / or the damping adjustment screw 4 is a cylinder, and when the damping adjustment screw 4 rotates, the conductor plate 3 can move in accordance with the axis of the damping adjustment screw 4. This is the preferred structural form of the magnet of the present invention, and a constant magnetic field can be generated by the permanent magnet, thereby generating eddy currents by interacting with the conductor plate; the damping adjustment screw is a cylinder, which is convenient for sleeve installation and rotation, so that the conductor plate sleeved on the cylindrical screw moves.

[0062] Preferably,

[0063] A stiffness adjustment screw 5 is also connected to the magnet 2. When the damper housing 1 includes a first side wall 11, a second through hole 13 is also penetrated through the first side wall 11 of the damper housing 1. The stiffness adjustment screw 5 can be inserted into the second through hole 13, and the outer peripheral wall of the stiffness adjustment screw 5 is provided with an external thread, and the inner peripheral wall of the second through hole 13 is provided with an internal thread matching the external thread of the stiffness adjustment screw 5, so that when the stiffness adjustment screw 5 rotates, the distance between the magnet 2 and the first side wall 11 can change.

[0064] The rotation of the stiffness adjustment screw can change the length of the partial section of the stiffness adjustment screw inside the damper housing, thereby effectively adjusting the natural frequency of the damper. Preferably, when the screw section inside the housing increases, its natural frequency decreases, and when the screw section inside the housing decreases, its natural frequency increases. The present invention preferably adjusts the natural frequency of the damper to a value equal to or close to the vibration frequency of the compressor; and the present invention uses the structural form of the screw to form a cantilever beam structure of the magnet, so that the damper can be effectively fixed to a suitable position, and the installation orientation or position of the damper can be changed as needed (for example, installed on the top of the compressor (Example 1, see Figure 1-2 ) or mounted to the side wall of the compressor (Example 2, see Figure 5-6 )), which makes the damper more adaptable and enables it to reduce vibrations in multiple directions.

[0065] The eddy current tuned mass damper 100 of the present invention is mainly composed of three parts, namely, a damper housing 1, a cantilever beam-mass block system with adjustable stiffness (including a magnet 2 and a stiffness adjustment screw 5), and a conductor plate 3, etc.;

[0066] Working principle of the damper: The compressor 200 with the damper installed can be regarded as a two-degree-of-freedom vibration system, in which the compressor 200 is the main system and the damper is its subsystem. The main system works at a certain frequency. When its working frequency is consistent with the subsystem frequency, the vibration energy will be transferred, and the damper will absorb the vibration of the compressor 200. As a result, the vibration energy will be transferred to the magnet 2 of the cantilever beam-mass block system. At this time, the compressor 200 stops vibrating due to the anti-resonance effect, and the relative displacement between the magnet 2 and the conductor plate 3 will excite eddy currents on the conductor plate 3, thereby generating a damping force. Finally, the kinetic energy of the magnet 2 will also be dissipated in the form of heat energy by the eddy current effect, thereby completing the vibration reduction work of the compressor.

[0067] Preferably,

[0068] When the damper housing 1 includes a first side wall 11 and a second side wall 12, a guide rod 6 is further provided inside the damper housing 1 and between the first side wall 11 and the second side wall 12, and a third through hole 32 is further provided on the conductor plate 3 in a manner of penetrating two opposite wall surfaces thereof, and the guide rod 6 can be inserted into the third through hole 32 so that the conductor plate 3 can slide along the direction of the guide rod 6. The guide rod can support and guide the movement of the conductor plate.

[0069] In order to cope with the vibration of the compressor 200 of different frequencies, the elongation of the cantilever beam can be adjusted by the stiffness adjustment screw 5, so as to adjust the natural frequency of the entire cantilever beam-mass block system. In order to design the optimal damping effect of the damper, the damping adjustment screw 4 can be adjusted to make the conductor plate 3 move up and down inside the damper along the damping adjustment screw 4 and the guide rod 6, so as to change the air gap between the magnet 2 and the conductor plate 3, thereby adjusting the damping force of different sizes. The mass size of the mass block can be accurately adjusted by replacing the mass blocks of different sizes with the gaskets of different specifications.

[0070] When the target is a variable frequency compressor, the optimal damping is designed by adjusting the position of the conductor plate 3, so that the damper can reduce vibration within a frequency range and has good robust performance. When the target is a fixed frequency compressor, it is only necessary to adjust the natural frequency of the cantilever beam-mass block system to be consistent with the compressor without adding the conductor plate 3. At this time, the conductor plate 3 is moved to the bottom of the damper's internal space farthest from the magnet 2. At this time, the damper can minimize the vibration amplitude of the compressor at a fixed frequency point to the greatest extent, but this approach reduces the robust performance of the damper. Therefore, the frequency deviation of the compressor will have a great impact on the vibration reduction effect.

[0071] Preferably,

[0072] One end of the guide rod 6 is connected to the first side wall 11, and the other end of the guide rod 6 is connected to the second side wall 12. This is the preferred connection form of the guide rod of the present invention, that is, one end is connected to the first side wall (preferably fixed), and the other end is connected to the second side wall (preferably fixed), so that the conductor plate can be guided and slid between the first side wall and the second side wall.

[0073] Preferably,

[0074] When the damping adjustment screw 4 is a cylinder, the guide rod 6 is also a cylinder, and the axis of the guide rod 6 is parallel to the axis of the damping adjustment screw 4. This is a further preferred structural form of the guide rod of the present invention, and the cylinder is convenient for sleeve installation and guiding, so that the conductor plate is sleeved on the guide rod of the cylinder to move.

[0075] Preferably,

[0076] A first boss 33 is provided at the lower end of the conductor plate 3 and connected to the first through hole 31. The first boss 33 has a third through hole (not shown) intersecting the first through hole 31 and allowing the damping adjustment screw 4 to pass therethrough. This is a further preferred structural form of the conductor plate of the present invention, that is, the first boss is connected to the lower end of the first through hole of the conductor plate, and the first boss has a third through hole connected to the first through hole, so that the internal thread section connected to the screw can be lengthened to improve the driving efficiency. Preferably, the first boss is integrally formed with the conductor plate.

[0077] Preferably,

[0078] A second boss 34 is provided at the lower end of the conductor plate 3 and connected to the third through hole 32. The second boss 34 has a fourth through hole (not shown) intersecting the third through hole 32 and allowing the guide rod 6 to pass therethrough. This is a further preferred structural form of the conductor plate of the present invention, that is, the second boss is connected to the lower end of the third through hole of the conductor plate, and the second boss has a fourth through hole connected to the third through hole, so that the through hole section connected to the guide rod can be increased, thereby improving the guide driving efficiency. Preferably, the second boss is integrally formed with the conductor plate.

[0079] The present invention further provides a compressor assembly, comprising the eddy current tuned mass damper 100 as described in any of the preceding items, and also comprising a compressor 200 , wherein the eddy current tuned mass damper is arranged on the top and / or side wall of the compressor 200 .

[0080] The present invention makes the magnets and the conductor plate inside the damper housing into a structural form in which the spacing can be adjusted as needed, so that the damping of the eddy current tuned mass damper can be adjusted as needed, thereby effectively improving the adaptability and versatility of the eddy current tuned mass damper; in particular, a damping adjustment screw structure is adopted, the damping adjustment screw is inserted into the first through hole of the conductor plate, and through threaded engagement, the position of the conductor plate can be adjusted and changed by rotating the damping adjustment screw, thereby realizing the movement of the conductor plate towards or away from the magnet, thereby realizing the damping adjustment function and effect of the damper.

[0081] The eddy current tuned mass damper of the present invention realizes the generation of non-contact damping force through the eddy current effect, which greatly enhances the service life of the damper. The eddy current tuned mass damper is a structure with infinitely variable frequency and variable damping, and can be adjusted and matched for different types of compressors; the eddy current tuned mass damper has strong robustness and can play a good vibration reduction effect on the variable frequency vibration-damped structure; the external damper structure simplifies the assembly and subsequent maintenance work, and will not affect the working state of the compressor itself; the vibration energy of both fixed frequency and variable frequency compressors can be well absorbed and consumed, and the vibration noise of the compressor itself can be suppressed, thereby making the compressor run more smoothly and improving the comfort of the air conditioner.

[0082] The compressor eddy current tuned mass damper 100 of the present invention is preferably bonded to the top surface of the compressor 200 to form a stable rigid connection. The bonding position is as far away from the central axis of the compressor 200 as possible. Since the vibration displacement of the compressor 200 is large at a position far away from the central axis, the damper can exert the best vibration reduction effect. At the same time, placing the damper on the top of the compressor 200 can also suppress the vibration of the compressor in two larger directions, the tangential and radial directions (Example 1, Figure 1-2 ).

[0083] The present invention also provides an air conditioner, which includes the aforementioned compressor assembly. The eddy current tuned mass damper of the present invention realizes the generation of non-contact damping force through the eddy current effect, greatly enhancing the service life of the damper. The eddy current tuned mass damper is a structure with infinitely variable frequency and variable damping, which can be adjusted and matched for different types of compressors; the eddy current tuned mass damper has strong robustness and can play a good vibration reduction effect for variable frequency vibration damping structures; the external damper structure simplifies assembly and subsequent maintenance work, and will not affect the working state of the compressor itself; the vibration energy of both fixed frequency and variable frequency compressors can be well absorbed and consumed, suppressing the vibration noise of the compressor itself, thereby making the compressor run more smoothly and improving the comfort of the air conditioner.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An eddy current tuned mass damper, characterized in that: include: A damper housing (1), and a magnet (2) and a conductor plate (3) arranged inside the damper housing (1), wherein the magnet (2) and the conductor plate (3) are arranged at a distance from each other, and the distance between the magnet (2) and the conductor plate (3) can be adjusted; and further comprising a damping adjustment screw (4), which can drive the conductor plate (3) to move closer to or farther from the magnet (2) when the damping adjustment screw (4) rotates; The magnet (2) is also connected to a stiffness adjustment screw (5). When the damper housing (1) includes a first side wall (11), the first side wall (11) of the damper housing (1) is also penetrated by a second through hole (13), and the stiffness adjustment screw (5) can be inserted into the second through hole (13). The outer peripheral wall of the stiffness adjustment screw (5) is provided with an external thread, and the inner peripheral wall of the second through hole (13) is provided with an internal thread matching the external thread of the stiffness adjustment screw (5), so that when the stiffness adjustment screw (5) rotates, the distance between the magnet (2) and the first side wall (11) can be changed; the natural frequency of the damper can be effectively adjusted to a value equal to or close to the vibration frequency of the compressor; the damper can be effectively fixed to a suitable position, and the installation orientation or position of the damper can be changed as needed, so as to reduce vibrations of resistance in multiple directions; When the damper housing (1) comprises a first side wall (11) and a second side wall (12), a guide rod (6) is further provided inside the damper housing (1) and between the first side wall (11) and the second side wall (12); a third through hole (32) is further provided on the conductor plate (3) in a manner of penetrating two opposite wall surfaces thereof; the guide rod (6) can be inserted into the third through hole (32) so that the conductor plate (3) can slide along the direction of the guide rod (6); The conductor plate (3) is provided with a first through hole (31) penetrating through two back-to-back wall surfaces thereof, the inner wall of the first through hole (31) is provided with an internal thread, and the outer peripheral wall of the damping adjustment screw (4) is provided with an external thread, and the first through hole (31) is capable of allowing the damping adjustment screw (4) to pass therethrough, so that when the damping adjustment screw (4) rotates, it can drive the conductor plate (3) to move closer to or farther from the magnet (2); A first boss (33) is provided at the lower end of the conductor plate (3) and is in contact with the first through hole (31); the first boss (33) has a third through hole that is intersecting with the first through hole (31) and is capable of allowing the damping adjustment screw (4) to pass therethrough; A second boss (34) is provided at the lower end of the conductor plate (3) and is in contact with the third through hole (32). The second boss (34) has a fourth through hole that is intersecting with the third through hole (32) and can allow the guide rod (6) to pass therethrough.

2. The eddy current tuned mass damper according to claim 1, characterized in that: The first end of the damping adjustment screw (4) is connected to the first side wall (11) of the damper housing (1), and the second end of the damping adjustment screw (4) is connected to the second side wall (12) of the damper housing (1), and the first side wall (11) is opposite to the second side wall (12).

3. The eddy current tuned mass damper according to claim 2, characterized in that: The position on the damping adjustment screw (4) that matches the conductor plate (3) is located between the first end and the second end.

4. The eddy current tuned mass damper according to claim 1, characterized in that: The magnet (2) is a permanent magnet; and / or the damping adjustment screw (4) is a cylinder, and when the damping adjustment screw (4) rotates, the conductor plate (3) can move in accordance with the axis of the damping adjustment screw (4).

5. The eddy current tuned mass damper according to claim 1, characterized in that: One end of the guide rod (6) is connected to the first side wall (11), and the other end of the guide rod (6) is connected to the second side wall (12).

6. The eddy current tuned mass damper according to claim 1, characterized in that: When the damping adjustment screw (4) is a cylinder, the guide rod (6) is also a cylinder, and the axis of the guide rod (6) is parallel to the axis of the damping adjustment screw (4).

7. A compressor assembly, characterized in that: The invention comprises the eddy current tuned mass damper (100) according to any one of claims 1 to 6, and also comprises a compressor (200), wherein the eddy current tuned mass damper is arranged on the top and / or the side wall of the compressor (200).

8. An air conditioner, characterized in that: Comprising the compressor assembly of claim 7.

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