Damping foot pad assembly, compressor and air conditioner

Abstract

The application provides a damping foot pad assembly, a compressor and an air conditioner, wherein the damping foot pad assembly comprises: an upper damping foot pad fixedly connected with a mounting leg of a vibrating component; a lower damping foot pad fixedly connected with an external fixing component; a vertical damping spring clamped between the upper damping foot pad and the lower damping foot pad to attenuate axial vibration of the upper damping foot pad; and a horizontal damping magnetic force assembly, the horizontal damping magnetic force assembly having a magnetic force capable of being adjusted to adjust the horizontal relative position of the upper damping foot pad and the lower damping foot pad. The application can actively attenuate and eliminate the vibration in the horizontal direction while realizing the attenuation and elimination of the vibration in the vertical direction, and effectively improves the overall damping effect of the damping foot pad assembly.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to a shock-absorbing foot pad assembly, a compressor, and an air conditioner. Background Technology

[0002] As people's living standards improve, their demands for quiet operation of products are becoming increasingly stringent. Furthermore, manufacturers' cost-reduction and efficiency-enhancing strategies often involve using lower-cost, more vibrating water pumps / compressors, leading to increased product noise. Solving this noise problem has become a significant challenge, necessitating targeted designs for vibration-damping structures. Based on existing product characteristics, the most common vibration-damping methods include spring feet, rubber feet, and combined feet. While these methods suppress vertical vibrations, they lack active limitation on horizontal vibrations. For example, utility model patent CN 218721971 U discloses a magnetic levitation air conditioner vibration-damping base. While the overall structure achieves effective vibration reduction, the involved mechanisms are complex and difficult to control, and this air conditioner vibration-damping base lacks active limitation on the horizontal vibration of vibrating components.

[0003] Magnetic levitation technology mainly uses electromagnetic force to suspend a magnetic levitation body in space. This technology not only has a small mechanical contact area, but also has advantages such as low friction and low noise. It is widely used in vibration reduction and noise reduction of vibrating components. For example, utility model patent with patent application number 201721209758.1 and invention patent with patent application number 202010237614.7 both disclose a magnetic levitation support structure. It can use the magnetic levitation isolation effect of the magnetic levitation support to achieve a certain degree of mechanical separation between the upper and lower parts, thereby avoiding the transmission of vibration of the vibrating component and achieving the effect of vibration reduction and noise reduction. However, the current magnetic levitation support structure is mostly used for vibration isolation in the vertical direction, lacking vibration reduction design in the horizontal direction. As a result, the vibration damping pad components using the magnetic levitation principle in related technologies have a high vibration reduction effect in the vertical direction, but a relatively poor effect in the horizontal direction. Summary of the Invention

[0004] Therefore, the present invention provides a shock-absorbing foot pad assembly, a compressor, and an air conditioner, which can solve the technical problem that the existing shock-absorbing foot pad assembly lacks active limitation on the horizontal vibration of the vibrating component, and has a good shock absorption effect in the height direction but a poor shock absorption effect in the horizontal direction, resulting in a poor overall shock absorption effect of the shock-absorbing foot pad assembly.

[0005] To address the above problems, the present invention provides a shock-absorbing foot pad assembly, comprising:

[0006] The upper shock-absorbing feet are fixedly connected to the mounting feet of the vibrating components;

[0007] The lower shock-absorbing feet are fixedly connected to the external fixed components;

[0008] A vertical damping spring is clamped between the upper damping pad and the lower damping pad to attenuate axial vibration along the upper damping pad;

[0009] A horizontal shock-absorbing magnetic component, wherein the magnetic force of the horizontal shock-absorbing magnetic component can be adjusted to adjust the horizontal relative position of the upper shock-absorbing foot pad and the lower shock-absorbing foot pad.

[0010] In some implementations...

[0011] The horizontal shock-absorbing magnetic components are provided in two sets. The two sets of horizontal shock-absorbing magnetic components are respectively arranged on opposite sides of the vertical shock-absorbing spring along the diameter direction of the upper shock-absorbing foot pad. The magnetic force of the two sets of horizontal shock-absorbing magnetic components can be adjusted independently.

[0012] In some implementations...

[0013] The lower shock-absorbing foot pad has a groove on its top surface. The horizontal shock-absorbing magnetic component includes a first permanent magnet protruding from the bottom surface of the upper shock-absorbing foot pad, a second permanent magnet located in the groove, and an energized coil. The first permanent magnet is inserted into the groove and spaced apart from the second permanent magnet along the diameter direction of the upper shock-absorbing foot pad. The energized coil is located in the groove and between the first and second permanent magnets. The two poles formed by the energized coil after being energized are respectively opposite to the first and second permanent magnets.

[0014] In some implementations...

[0015] The first permanent magnet is located radially outside the second permanent magnet; and / or,

[0016] The first permanent magnet also passes through and fits into the limiting hole on the mounting foot.

[0017] In some implementations...

[0018] The first permanent magnet includes a rigid support column, and the first permanent magnet is connected to the upper shock-absorbing foot pad as a whole through the rigid support column, and the contact part between the first permanent magnet and the limiting hole is the rigid support column.

[0019] In some implementations...

[0020] The cross-sections of the first permanent magnet and the second permanent magnet are both rectangular; and / or, the energized coil is wound on a coil core, and the cross-section of the coil core is rectangular.

[0021] In some implementations...

[0022] A cooling cavity is formed inside the coil core, and coolant can circulate in and out of the cooling cavity; and / or, the side face of the first permanent magnet facing the groove wall is the first side face, and the side wall adjacent to the first side face is the second side face, and distance sensors are provided on both the first side face and the second side face.

[0023] In some embodiments, the shock-absorbing foot pad assembly further includes:

[0024] An axial displacement limiting component is provided, which simultaneously passes through the upper shock-absorbing pad and the lower shock-absorbing pad to limit the axial displacement of the upper shock-absorbing pad.

[0025] In some implementations...

[0026] The lower shock-absorbing foot pad has a through hole extending from its top surface to its bottom surface, and a magnetic shielding layer is formed on the wall of the through hole. The axial displacement limiting member passes through the through hole; and / or, the vertical shock-absorbing spring is fitted around the outer circumference of the axial displacement limiting member.

[0027] The present invention also provides a compressor including the above-described shock-absorbing foot pad assembly.

[0028] The present invention also provides an air conditioner, including a compressor, wherein the compressor is the compressor described above, and when the shock-absorbing foot pad assembly includes a cooling chamber, the low-temperature refrigerant in the air conditioner is introduced into the cooling chamber and flows back from the cooling chamber to the air conditioner.

[0029] The shock-absorbing foot pad assembly, compressor, and air conditioner provided by this invention have the following beneficial effects:

[0030] A vertical damping spring is sandwiched between the upper and lower damping pads to attenuate and eliminate vibrations in the vertical direction (i.e., the Z direction). At the same time, the horizontal damping magnetic component can actively adjust and limit the horizontal relative position of the upper and lower damping pads, thereby eliminating the vibrations generated by the vibrating component in the horizontal direction. In other words, the damping pad assembly in this application can not only attenuate and eliminate vertical vibrations, but also actively attenuate and eliminate horizontal vibrations, effectively improving the overall damping effect of the damping pad assembly.

[0031] The shock-absorbing foot pad assembly of this application uses a more traditional vertical shock-absorbing spring to eliminate vertical vibration attenuation instead of the magnetic levitation technology commonly used in the industry. This can significantly reduce the difficulty of magnetic control of the shock-absorbing foot pad assembly, reduce the magnetic interference caused by using magnetic levitation shock-absorbing components in both the vertical and horizontal directions, and thus reduce the difficulty of control.

[0032] By setting up two sets of horizontal shock-absorbing magnetic components with independently adjustable magnetic force, the position of the upper shock-absorbing pad can be adjusted by the resultant force of the two components. This allows the upper shock-absorbing pad to be adjusted in a magnetically levitated state relative to the lower shock-absorbing pad in the horizontal direction, ensuring the horizontal active shock absorption effect.

[0033] The first permanent magnet not only achieves magnetic force adjustment but also serves as a component connecting to the mounting feet, thereby making the structure of the shock-absorbing foot pad assembly in this application more concise and compact, eliminating the need for separate design of the fixing structure of the mounting feet.

[0034] By setting a rigid support column on the first permanent magnet that matches the limiting hole, the permanent magnet can be avoided from being directly fixed to the mounting feet as a connecting structure, thereby improving the load-bearing capacity and service life of the first permanent magnet.

[0035] By introducing coolant into the cooling chamber of the coil core, the energized coil can be cooled, thereby reducing the heat generated during the operation of the energized coil. This prevents the permanent magnet in the groove from demagnetizing due to high temperature, ensuring the normal use of the shock-absorbing foot pad assembly.

[0036] By setting a magnetic shielding layer on the wall of the through hole, magnetic interference between the magnetic components on both sides can be avoided to the greatest extent, thereby ensuring the magnetic force adjustment effect; the vertical damping spring is fitted on the outer circumference of the axial displacement limiting component, which can ensure the elastic deformation stability of the vertical damping spring. Attached Figure Description

[0037] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0038] Figure 1 This is a half-sectional view (along the axial plane) of the upper shock-absorbing pad in the shock-absorbing pad assembly of the present invention. The arrow in the figure shows the insertion direction when it is assembled with the lower shock-absorbing pad.

[0039] Figure 2 This is a half-sectional view (along the axial plane) of the lower shock-absorbing pad in the shock-absorbing pad assembly of the present invention. The arrow in the figure shows the insertion direction of the upper shock-absorbing pad when it is assembled with the upper shock-absorbing pad.

[0040] Figure 3 This is a three-dimensional structural diagram of the compressor of the present invention after assembly.

[0041] The attached figures are labeled as follows:

[0042] 1. Upper shock-absorbing foot pad; 10. Upper foot pad body; 11. First permanent magnet;

[0043] 2. Lower shock-absorbing foot pad; 20. Lower foot pad body; 21. Groove; 22. Second permanent magnet;

[0044] 3. Vertical damping springs;

[0045] 4. Energized coil; 41. Coil core;

[0046] 5. Distance sensor;

[0047] 61. Connecting stud; 62. Set nut;

[0048] 100. Mounting feet; 200. External fixing components; 300. Compressor. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0053] See also Figures 1 to 3 As shown, according to an embodiment of the present invention, a shock-absorbing foot pad assembly is provided, comprising:

[0054] The upper shock-absorbing foot pad 1, which can be made of rubber, is fixedly connected to the mounting foot 100 of the vibrating component so that it can follow the vibration component to generate a certain displacement when the position of the vibration component changes during operation. This allows the vibration of the vibration component to be at least attenuated in the horizontal direction by actively adjusting the position of the upper shock-absorbing foot pad 1. The aforementioned vibration component can be a compressor or a water pump. In this case, the aforementioned mounting foot 100 is generally made of metal and is fixedly connected to the casing of the compressor or the pump body of the water pump.

[0055] The lower shock-absorbing foot pad 2 is fixedly connected to the external fixing component 200. The aforementioned external fixing component 200 is, for example, a component mounting platform. Its structural type can be different depending on different application conditions.

[0056] A vertical damping spring 3 is clamped between the upper damping pad 1 and the lower damping pad 2. For example, the top end of the vertical damping spring 3 abuts against the bottom end of the upper damping pad 1, and the bottom end of the vertical damping spring 3 abuts against the top end of the lower damping pad 2. At this time, under the elastic force of the vertical damping spring 3, there is no contact between the upper damping pad 1 and the lower damping pad 2. That is, the two are relatively suspended under the action of the aforementioned vertical damping spring 3 to attenuate the axial vibration along the upper damping pad 1. The aforementioned vertical damping spring 3 is preferably a metal helical spring, which has greater stiffness and vertical deformation resistance.

[0057] A horizontal shock-absorbing magnetic component, the magnetic force of which can be adjusted to adjust the horizontal relative position of the upper shock-absorbing pad 1 and the lower shock-absorbing pad 2, specifically, to... Figure 3 Taking the position of the shock-absorbing foot pad assembly shown as applied to the compressor 300 under shock absorption conditions as an example, the aforementioned horizontal relative position is also the relative position on the actual horizontal plane, that is, the position in the plane formed by XY.

[0058] In this technical solution, a vertical damping spring 3 is sandwiched between the upper damping pad 1 and the lower damping pad 2 to attenuate and eliminate vibrations in the vertical direction (i.e., the Z direction). At the same time, the horizontal damping magnetic component can actively adjust and limit the horizontal relative position of the upper damping pad 1 and the lower damping pad 2, thereby eliminating the vibrations generated by the vibrating component in the horizontal direction. That is, the damping pad assembly in this application can not only attenuate and eliminate vertical vibrations, but also actively attenuate and eliminate horizontal vibrations, effectively improving the overall damping effect of the damping pad assembly.

[0059] It should be noted that the shock-absorbing foot pad assembly of this application uses a more traditional vertical shock-absorbing spring 3 to eliminate vertical vibration attenuation instead of the magnetic levitation technology commonly used in the industry. This significantly reduces the difficulty of magnetic control of the shock-absorbing foot pad assembly and reduces magnetic interference caused by using magnetic levitation shock-absorbing components in both the vertical and horizontal directions, thereby reducing control difficulty. The aforementioned shock-absorbing foot pad assembly has a simple overall structure and is easy to assemble.

[0060] In one specific embodiment, two sets of horizontal shock-absorbing magnetic components are provided. The two sets of horizontal shock-absorbing magnetic components are respectively arranged on opposite sides of the vertical shock-absorbing spring 3 along the diameter direction of the upper shock-absorbing pad 1. The magnetic force of the two sets of horizontal shock-absorbing magnetic components can be adjusted independently. The aforementioned diameter direction is specifically: when its projection is circular, the diameter here is also the diameter direction of the circle; when its projection is not circular, the diameter direction at this time means that the projections of the two horizontal shock-absorbing magnetic components and the vertical shock-absorbing spring 3 are approximately on the same straight line.

[0061] In this technical solution, by setting two sets of horizontal shock-absorbing magnetic components whose magnetic force can be adjusted independently, the position of the upper shock-absorbing pad 1 can be adjusted by the resultant force of the two, thereby realizing the position adjustment of the upper shock-absorbing pad 1 in the horizontal direction relative to the lower shock-absorbing pad 2 in a magnetic levitation state, ensuring the horizontal active shock absorption effect.

[0062] In one specific embodiment, see detailed description. Figure 1 and Figure 2 As shown, the horizontal shock-absorbing magnetic component includes: a first permanent magnet 11 protruding from the bottom surface of the upper shock-absorbing pad 1, a second permanent magnet 22 located in a groove 21 constructed on the top surface of the lower shock-absorbing pad 2 (i.e., the second permanent magnet 22 is located in the groove 21), and an energized coil 4. The first permanent magnet 11 is inserted into the groove 21 and spaced apart from the second permanent magnet 22 along the diameter direction of the upper shock-absorbing pad 1. The energized coil 4 is located in the groove 21 and between the first permanent magnet 11 and the second permanent magnet 22. The two poles formed by the energized coil 4 after being energized are respectively opposite to the first permanent magnet 11 and the second permanent magnet 22.

[0063] Specifically, with Figure 1 and Figure 2 The orientation shown is for reference. In the horizontal shock-absorbing magnetic component on the left side of the diagram, the left side of the first permanent magnet 11 is the N pole and the right side is the S pole. The left side of the second permanent magnet 22 can be either the N pole or the S pole; assuming it's the N pole, the right side is the S pole. When the energizing coil 4 is not energized, its left and right sides are not magnetic. When the energizing coil 4 is energized, if the left side is the N pole and the right side is the S pole, the energizing coil 4 enhances the magnetic attraction between the first permanent magnet 11 and the second permanent magnet 22. Since the lower shock-absorbing pad 2 is fixed, the upper shock-absorbing pad 1 will move closer to the second permanent magnet 22, and the vibration component will move synchronously. Thus, it can be understood that under the horizontal vibration of the vibration component, the upper shock-absorbing pad 1 moves away from the second permanent magnet 22... When the direction is moved, the aforementioned principle can be used to restore the position of the vibrating component to its original position. Correspondingly, for the horizontal shock-absorbing magnetic component on the right side of the figure, the energized coil 4 inside it is also energized synchronously to enhance its magnetic attraction in the same direction as the horizontal shock-absorbing magnetic component on the left side. This can ensure the response speed of the position change of the upper shock-absorbing pad 1 and improve the shock absorption effect. It is understood that the first permanent magnet 11 and the second permanent magnet 22 in each of the two sets of horizontal shock-absorbing magnetic components should simultaneously have magnetic attraction or magnetic repulsion to ensure that the upper shock-absorbing pad 1 and the lower shock-absorbing pad 2 are stably in the initial position when the energized coil 4 is not energized. This initial position is also the position of the upper shock-absorbing pad 1 when the position is not changed due to the horizontal vibration force exerted by the vibrating component.

[0064] The aforementioned second permanent magnet 22, energized coil 4, and coil core 41 can all be injection molded into one piece with the lower shock-absorbing foot pad 2.

[0065] In some embodiments, the first permanent magnet 11 is located radially outside the second permanent magnet 22. Positioning the first permanent magnet 11 radially outside the second permanent magnet 22 can ensure the stability of the upper shock-absorbing pad 1.

[0066] In a preferred embodiment, the first permanent magnet 11 also passes through a limiting hole (not shown in the figure) on the mounting leg 100.

[0067] In other words, in this technical solution, the first permanent magnet 11 not only achieves magnetic force adjustment but also serves as a component connecting to the mounting foot 100, thereby making the structure of the shock-absorbing foot pad assembly in this application more concise and compact, without the need to design a separate fixing structure for the mounting foot 100.

[0068] In a preferred embodiment, the first permanent magnet 11 includes a rigid support column, which connects the first permanent magnet 11 integrally with the upper shock-absorbing pad 1. The contact portion between the first permanent magnet 11 and the limiting hole is the rigid support column (not labeled in the figure). In a specific embodiment, the rigid support column can be a non-magnetic metal column (e.g., a copper column) with a rectangular cross-section to reduce magnetic loss. It is specifically limited and connected (e.g., with an interference fit or by a pin) within the aforementioned limiting hole. In a specific embodiment, the magnetic portion of the first permanent magnet 11 can be assembled (e.g., glued) to the corresponding positions of the rigid support column and the second permanent magnet 22 or the energized coil 4.

[0069] In this technical solution, by setting a rigid support column on the first permanent magnet 11 that cooperates with the limiting hole, the permanent magnet can be avoided from being directly fixed to the mounting leg 100 as a connecting structure, thereby improving the load-bearing capacity and service life of the first permanent magnet 11. It is understood that the aforementioned second permanent magnet 22 can also be the same as the first permanent magnet 11 in terms of specific structure.

[0070] In some embodiments, the cross-sections of the first permanent magnet 11 and the second permanent magnet 22 are both rectangular. In specific design, the magnetic pole areas of the first permanent magnet 11 and the second permanent magnet 22 should be large enough to ensure that there is sufficient attraction or repulsion between them. At the same time, a sufficiently large magnetic pole area can also achieve a balanced buffering effect on the torsional force of the vibrating component by utilizing the attraction between the two permanent magnets when they are misaligned. The energized coil 4 is wound on the coil core 41, and the cross-section of the coil core 41 is rectangular.

[0071] In a preferred embodiment, a cooling cavity (not shown in the figure) is formed within the coil core 41. Coolant, such as a refrigerant or cooling water, circulates in and out of the cooling cavity. By introducing coolant into the cooling cavity of the coil core 41, the energized coil 4 can be cooled, thereby reducing the heat generated during the operation of the energized coil 4. This prevents the permanent magnet in the groove from demagnetizing due to high temperature, ensuring the normal operation of the shock-absorbing foot pad assembly. It is understood that the aforementioned cooling cavity should be a sealed cavity to prevent leakage of the coolant that enters it.

[0072] The side of the first permanent magnet 11 facing the groove wall of the groove 21 is the first side surface, and the side wall adjacent to the first side surface is the second side surface (it is understood that there are objectively two second side surfaces). Both the first and second side surfaces are equipped with distance sensors 5. Specifically, the distance sensors 5 can be one of infrared distance sensors, laser distance sensors, etc., used to acquire the relative position of the upper shock-absorbing pad 1 and the lower shock-absorbing pad 2 in real time. Then, by adjusting the magnitude and direction of the current in the energized coil 4, the relative position of the upper shock-absorbing pad 4 and the lower shock-absorbing pad 2 is adjusted. It is understood that at this time, a corresponding control component is provided for the shock-absorbing pad assembly. It is understood that after acquiring the distance signals (data) acquired by each distance sensor 5, the control component performs corresponding calculations in its internal chip and forms a control strategy, thereby adjusting the magnitude and direction of the current in the energized coil 4, thus achieving the adjustment of the relative position of the upper shock-absorbing pad 1 and the lower shock-absorbing pad 2, that is, achieving the left-right suspension and shock absorption purpose of the upper shock-absorbing pad 1.

[0073] In a specific embodiment, the control process of the aforementioned shock-absorbing foot pad assembly is roughly as follows:

[0074] System modeling is performed on the X and Y directions of the upper shock-absorbing foot pad 1 during the levitation process. A PID controller is designed to achieve magnetic levitation control. Electromagnetic force equations are constructed, and electrical equations for magnetic circuit function relationships and current-voltage relationships are obtained using Faraday's law of electromagnetic induction and Kirchhoff's magnetic pressure theorem for magnetic circuits. Coordinate axes are defined, and a dynamic model of the magnetic levitation system is constructed. The position changes of the magnetic levitation test platform on the X and Y axes are studied. When the energized coil 4 starts working, it will output initialization parameters. The position information of the upper shock-absorbing foot pad 1 is obtained through the distance sensor 5, and the detection signal is output. The voltage signal is amplified by the operational amplifier module and transmitted to the microcontroller to adjust the system parameters so that the upper shock-absorbing foot pad 1 is suspended at the set position (target position). The energized coil 4 generates a controllable magnetic field, which causes the permanent magnet to generate a horizontal thrust. For different frequencies of compressor operation, the different feedbacks received by the foot pad are calculated, and the corresponding electromagnetic force magnitude and direction are given (achieved by adjusting the magnitude and direction of the current in the energized coil 4), so as to control the magnetic levitation foot pad to float at the equilibrium point. At the same time, the stability of the overall feedback operational amplifier circuit is improved by adjusting the amplification factor of the circuit.

[0075] In some embodiments, the shock-absorbing pad assembly further includes an axial displacement limiting member (not indicated in the figure), which simultaneously passes through the upper shock-absorbing pad 1 and the lower shock-absorbing pad 2 to limit the axial displacement of the upper shock-absorbing pad 1, so as to prevent excessive vibration of the vibrating component from causing the upper shock-absorbing pad 1 to detach from the lower shock-absorbing pad 2 in the vertical direction.

[0076] The aforementioned vibration element includes, for example, a connecting stud 61 and a set nut 62 threaded to both ends thereon. It is understood that the purpose of the aforementioned axial displacement limiting element is to prevent the first permanent magnet 11 of the upper damping pad 1 from dislodging from the top slot of the corresponding groove 21 of the lower damping pad 2. Under normal circumstances, it cannot restrict the movement of the upper damping pad 1 within a certain displacement range in the horizontal direction, thus ensuring the purpose of active limiting of magnetic levitation.

[0077] In some embodiments, the lower shock-absorbing pad 2 has a through hole (not shown in the figure) extending from its top surface to its bottom surface, and a magnetic shielding layer (not shown in the figure) is formed on the wall of the through hole, and the axial displacement limiting member passes through the through hole.

[0078] In this technical solution, by setting a magnetic shielding layer on the wall of the through hole, the magnetic interference between the magnetic components on both sides can be avoided to the greatest extent, thereby ensuring the magnetic force adjustment effect; the vertical damping spring 3 is fitted on the outer circumference of the axial displacement limiting component, which can ensure the elastic deformation stability of the vertical damping spring 3.

[0079] Correspondingly, the corresponding area of ​​the upper shock-absorbing pad 1 is also constructed with an installation gap that runs through its bottom and top surfaces. In a specific embodiment, the installation gap is a cross-shaped slit structure. Since the upper shock-absorbing pad 1 is made of rubber with a certain degree of flexibility, the cross-shaped slit structure will deform after the aforementioned axial displacement limiting component is assembled and can deform within a certain range to ensure the position adjustment purpose of the upper shock-absorbing pad 1.

[0080] See details Figure 1 As shown, the upper shock-absorbing pad 1 includes an upper pad body 10 with a thickness of c, and a first permanent magnet 11 connected to the bottom surface of the upper pad body 10. The first permanent magnet 11 protrudes from the bottom surface by a length of d.

[0081] See details Figure 2 As shown, the lower shock-absorbing pad 2 includes a lower pad body 20 with a thickness of b. Its bottom is fixedly connected to the external fixing component 200 at the bottom through a corresponding connection structure (such as bolts, clips, or even adhesive). A groove 21 is formed on the top surface of the lower pad body 20, and the groove depth of the groove 21 from top to bottom is a. In order to ensure the floating state between the upper shock-absorbing pad 1 and the lower shock-absorbing pad 2, the value of a should be greater than the value of d. Specifically, the aforementioned floating state is the basic principle, and the aforementioned values ​​of c and b can be reasonably selected according to the specific load bearing requirements.

[0082] The aforementioned shock-absorbing foot pad assembly of this application not only limits the compression of the foot pad, but also effectively prevents it from colliding with the chassis (i.e., the external fixed component 200), effectively solving the problem of high noise transmission from the water pump or compressor.

[0083] According to an embodiment of the present invention, a compressor is also provided, including the above-described shock-absorbing foot pad assembly, see details below. Figure 3 As shown, the mounting feet 100 of the compressor 300 are located between the upper shock-absorbing foot pad 1 and the lower shock-absorbing foot pad 2 and are connected to the upper shock-absorbing foot pad 1 as a whole. The bottom of the lower shock-absorbing foot pad 2 is fixedly connected to different external fixed parts 200, such as the air conditioner chassis, thereby achieving buffering of vertical and horizontal vibrations of the compressor.

[0084] A vertical damping spring 3 is sandwiched between the upper damping pad 1 and the lower damping pad 2 to attenuate and eliminate vibrations in the vertical direction (i.e., the Z direction). At the same time, the horizontal damping magnetic component can actively adjust and limit the horizontal relative position of the upper damping pad 1 and the lower damping pad 2, thereby eliminating the vibrations generated by the vibrating component in the horizontal direction. That is, the damping pad assembly in this application can not only attenuate and eliminate vertical vibrations, but also actively attenuate and eliminate horizontal vibrations, effectively improving the overall damping effect of the damping pad assembly.

[0085] The aforementioned grooves can be respectively set to correspond to the two sets of horizontal shock-absorbing magnetic components. Of course, the aforementioned grooves can also be a ring-shaped whole.

[0086] According to an embodiment of the present invention, an air conditioner is also provided, including a compressor 300, wherein the compressor 300 is the compressor described above, and when the shock-absorbing foot pad assembly includes a cooling chamber, the low-temperature refrigerant in the air conditioner is introduced into the cooling chamber and flows back from the cooling chamber to the air conditioner. The aforementioned low-temperature refrigerant may be, for example, a portion of the refrigerant from the suction pipe of the compressor 300, which is guided to the cooling chamber through a corresponding drain pipe and flows back to the suction pipe through another drain pipe after exchanging heat with the energized coil 4. Alternatively, it may be the refrigerant flowing out of the condenser of the air conditioner, which is guided to the cooling chamber through a corresponding drain pipe and flows back to the suction pipe through another drain pipe after exchanging heat with the energized coil 4.

[0087] In this technical solution, the low-temperature refrigerant inside the air conditioner is introduced into the corresponding compressor shock-absorbing pad assembly to cool the energized coil 4, preventing the permanent magnet from demagnetizing at high temperatures. The structure is simple and compact.

[0088] A vertical damping spring 3 is sandwiched between the upper damping pad 1 and the lower damping pad 2 to attenuate and eliminate vibrations in the vertical direction (i.e., the Z direction). At the same time, the horizontal damping magnetic component can actively adjust and limit the horizontal relative position of the upper damping pad 1 and the lower damping pad 2, thereby eliminating the vibrations generated by the vibrating component in the horizontal direction. That is, the damping pad assembly in this application can not only attenuate and eliminate vertical vibrations, but also actively attenuate and eliminate horizontal vibrations, effectively improving the overall damping effect of the damping pad assembly.

[0089] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0090] The above description is merely 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 principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A shock-absorbing foot pad assembly, characterized in that, include: The upper shock-absorbing pad (1) is fixedly connected to the mounting feet (100) of the vibration component; The lower shock-absorbing foot pad (2) is fixedly connected to the external fixing component (200); A vertical damping spring (3) is clamped between the upper damping pad (1) and the lower damping pad (2) to attenuate axial vibration along the upper damping pad (1); A horizontal shock-absorbing magnetic component, wherein the magnetic force of the horizontal shock-absorbing magnetic component can be adjusted to adjust the horizontal relative position of the upper shock-absorbing pad (1) and the lower shock-absorbing pad (2); The lower shock-absorbing pad (2) has a groove (21) on its top surface. The horizontal shock-absorbing magnetic component includes a first permanent magnet (11) protruding from the bottom surface of the upper shock-absorbing pad (1), a second permanent magnet (22) located in the groove (21), and an energized coil (4). The first permanent magnet (11) is inserted into the groove (21) and is spaced apart from the second permanent magnet (22) along the diameter direction of the upper shock-absorbing pad (1). The energized coil (4) is located in the groove (21) and between the first permanent magnet (11) and the second permanent magnet (22). The two poles formed by the energized coil (4) are respectively opposite to the first permanent magnet (11) and the second permanent magnet (22).

2. The shock-absorbing foot pad assembly according to claim 1, characterized in that, The horizontal shock-absorbing magnetic components are provided in two sets. The two sets of horizontal shock-absorbing magnetic components are respectively arranged on opposite sides of the vertical shock-absorbing spring (3) along the diameter direction of the upper shock-absorbing foot pad (1). The magnetic force of the two sets of horizontal shock-absorbing magnetic components can be adjusted independently.

3. The shock-absorbing foot pad assembly according to claim 1, characterized in that, The first permanent magnet (11) is located radially outside the second permanent magnet (22); and / or, The first permanent magnet (11) also passes through and fits into the limiting hole on the mounting leg (100).

4. The shock-absorbing foot pad assembly according to claim 3, characterized in that, The first permanent magnet (11) includes a rigid support column. The first permanent magnet (11) is connected to the upper shock-absorbing foot pad (1) as a whole through the rigid support column, and the contact part between the first permanent magnet (11) and the limiting hole is the rigid support column.

5. The shock-absorbing foot pad assembly according to claim 1, characterized in that, The cross-sections of the first permanent magnet (11) and the second permanent magnet (22) are both rectangular; and / or, the energized coil (4) is wound on the coil core (41), the cross-section of the coil core (41) being rectangular.

6. The shock-absorbing foot pad assembly according to claim 5, characterized in that, A cooling cavity is formed inside the coil core (41), and coolant can circulate in and out of the cooling cavity; and / or, the side face of the first permanent magnet (11) facing the groove wall of the groove (21) is the first side face, and the side wall adjacent to the first side face is the second side face, and a distance sensor (5) is provided on both the first side face and the second side face.

7. The shock-absorbing foot pad assembly according to claim 1, characterized in that, Also includes: An axial displacement limiting member is provided, which simultaneously passes through the upper shock-absorbing pad (1) and the lower shock-absorbing pad (2) to limit the axial displacement of the upper shock-absorbing pad (1).

8. The shock-absorbing foot pad assembly according to claim 7, characterized in that, The lower shock-absorbing foot pad (2) has a through hole extending from its top surface to its bottom surface, and a magnetic shielding layer is formed on the hole wall. The axial displacement limiting member passes through the through hole; and / or, the vertical shock-absorbing spring (3) is fitted around the outer circumference of the axial displacement limiting member.

9. A compressor, characterized in that, The shock-absorbing foot pad assembly includes any one of claims 1 to 8.

10. An air conditioner, characterized in that, Includes a compressor (300), the compressor (300) being the compressor of claim 9, and when the shock-absorbing foot pad assembly includes a cooling chamber, the low-temperature refrigerant in the air conditioner is introduced into the cooling chamber and flows back from the cooling chamber to the air conditioner.

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