Vibration damper for rare earth permanent magnet variable frequency motor of refrigerating compressor of freezer

Abstract

The invention provides a damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor, and relates to the technical field of compressors, the damping device comprises a compressor main body, the compressor main body comprises a compressor bottom shell, a compressor top shell is installed at the top of the compressor bottom shell, and a wiring controller is installed on the side face of the compressor bottom shell; a variable frequency motor is installed in the compressor bottom shell and the compressor top shell, a compression power assembly is installed on the variable frequency motor, a damper spring is installed in the compressor bottom shell, the variable frequency motor is located on the damper spring, an energy absorption mechanism is arranged in the compressor bottom shell, and a pressurization mechanism and an adjusting mechanism are installed on the variable frequency motor. The vibration damping device for the rare earth permanent magnet variable frequency motor of the freezer refrigeration compressor can weaken vibration generated by inclination of the compressor, can level the compressor so as to reduce vibration, has the advantages of low vibration intensity and low noise, and solves the problems of high vibration intensity and high noise caused by inclination of the compressor.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, in particular to a vibration reduction device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor. Background Art

[0002] In the field of household appliances, freezers are core equipment for maintaining food freshness and storage. The stable operation of their compressors plays a decisive role in refrigeration efficiency and user experience. The noise and vibration generated during the operation of the compressor have always been the focus of the industry. Especially as consumers' requirements for a quiet home environment continue to increase, reducing the noise and vibration of the compressor operation has become a technical problem that needs to be solved urgently. Existing freezer compressors usually use vibration reduction devices to reduce noise and vibration, such as rubber vibration reduction pads, spring vibration reducers and other structures, to reduce the transmission of vibrations generated during operation to the freezer housing and the surrounding environment.

[0003] However, when the compressor of the freezer is tilted during transportation, installation or daily use, the existing vibration reduction structure will not be able to function effectively, resulting in uneven force on the internal precision components, increased friction during movement, and abnormal vibration and noise. It will also cause an imbalance in the matching relationship between the compressor and the vibration reduction device, and the vibration reduction device will be unable to absorb and buffer the vibration normally, causing the vibration to be transmitted outward through the freezer shell, seriously affecting the user experience. Therefore, we propose a vibration reduction device for rare earth permanent magnet variable frequency motor of freezer refrigeration compressor to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to make up for the shortcomings of the prior art. A vibration reduction device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor is proposed. The device can weaken the vibration caused by the tilt of the compressor and can also level the compressor to reduce the vibration. It has the advantages of low vibration intensity and low noise, and solves the problem of high vibration intensity and high noise caused by the tilt of the compressor.

[0005] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a vibration reduction device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor, comprising a compressor main body, the compressor main body comprising a compressor bottom shell, a compressor top shell is installed on the top of the compressor bottom shell, a wiring controller is installed on the side of the compressor bottom shell, a variable frequency motor is installed inside the compressor bottom shell and the compressor top shell, a compression power assembly is installed on the variable frequency motor, a vibration reduction spring is installed inside the compressor bottom shell, the variable frequency motor is seated on the vibration reduction spring, an energy absorption mechanism is provided inside the compressor bottom shell, and a boost mechanism and an adjustment mechanism are installed on the variable frequency motor.

[0006] Further, the energy absorption mechanism includes an energy absorption ring body, which is fixed on the inner wall of the compressor bottom shell, sleeved outside the variable-frequency motor. An accommodation ring groove is formed on the inner wall of the energy absorption ring body, and an airbag ring is installed inside the accommodation ring groove. The inner side of the airbag ring presses on the surface of the variable-frequency motor.

[0007] The airbag ring absorbs the polarization energy of the variable-frequency motor, reducing the polarization amplitude of the variable-frequency motor, achieving the effect of vibration reduction and reducing the noise generated by polarization.

[0008] An adaptation through-hole is formed on the energy absorption ring body, an isolation rubber tube is inserted on the airbag ring, and an air delivery long tube is inserted in the adaptation through-hole and the isolation rubber tube.

[0009] Further, the pressurization mechanism includes a pressurization component, which is installed on the variable-frequency motor and is symmetric with the compression power component. A pressurization chamber is provided on the pressurization component. An intake spring and a pressurization piston are arranged inside the pressurization chamber. A transmission shaft body is installed on the pressurization piston, and the transmission shaft body is in transmission connection with the compression power component. An air delivery elbow is communicated with the exhaust port of the pressurization component, and the air delivery elbow is communicated with the airbag ring.

[0010] Through the symmetric arrangement between the pressurization component and the compression power component, a balancing force is exerted, reducing the polarization energy of the variable-frequency motor, thereby reducing the polarization amplitude and achieving the effect of reducing noise.

[0011] Through the combined action of the compression power component and the intake spring, the pressurization piston reciprocates inside the pressurization chamber, playing the role of inhaling and compressing gas. The compressed gas is introduced into the airbag ring through the air delivery elbow, increasing the internal air pressure of the airbag ring and enhancing the energy absorption effect, playing the role of increasing the vibration reduction effect.

[0012] Further, the pressurization piston is hollow, and a triggering mechanism is provided on the pressurization piston. The triggering mechanism includes a triggering round hole and a rotation stopping groove hole, which are formed on the pressurization piston. The transmission shaft body is inserted in the triggering round hole, and a rotation stopping long strip is slidably inserted in the rotation stopping groove hole. The rotation stopping long strip is connected to the transmission shaft body. A driving screw is installed inside the transmission shaft body in a threaded fit manner, and a triggering motor is installed at the end of the driving screw. The triggering motor is installed inside the pressurization piston. The triggering mechanism further includes a triggering groove box, which is installed at the end of the transmission shaft body. A triggering roller is installed on the triggering groove box, and the triggering roller is adapted to the eccentric transmission component on the compression power component.

[0013] Through the insertion effect between the anti-rotation strip and the anti-rotation slot hole, the transmission shaft body cannot rotate. Through the threaded engagement between the driving screw and the transmission shaft body, the actuating motor can drive the actuating slot box to reciprocate, so as to control the transmission between the actuating roller and the eccentric transmission component on the compression power assembly, and then control the action and stop of the boosting piston, avoiding the airbag ring from being inflated all the time and bursting.

[0014] Further, the adjusting mechanism includes an energy storage box body, a pipe-passing hole and a docking hole. The energy storage box body is installed on the variable-frequency motor, the air delivery elbow is communicated with the energy storage box body, an adjusting main pipeline is communicated on the energy storage box body, an adjusting short branch pipe is communicated on the adjusting main pipeline, the pipe-passing hole is opened on the energy-absorbing ring body, the docking hole is opened on the airbag ring, the end of the adjusting short branch pipe passes through the pipe-passing hole and is communicated with the docking hole, an adjusting solenoid valve is installed on the adjusting short branch pipe, and a pressure sensor and a vibration sensor are installed on the energy storage box body.

[0015] By storing air kinetic energy in the energy storage box body, the air pressure inside the airbag ring can be changed according to needs even when the variable-frequency motor is not running, which has the effect of increasing vibration damping.

[0016] The pressure sensor can be used to detect the air pressure inside the energy storage box body in real time.

[0017] The vibration sensor can be used to detect the vibration intensity of the variable-frequency motor in real time.

[0018] Further, it further includes an installation structure. The installation structure includes an installation bottom plate, the installation bottom plate is installed on the bottom surface of the compressor bottom shell, an extension wing is connected to the installation bottom plate, a through hole is opened on the extension wing, an installation bolt is inserted into the through hole, an upper rubber washer, a rubber convex ring and a lower rubber washer are sleeved outside the installation bolt, the rubber convex ring is inserted into the through hole, and a locking nut is installed at the bottom end of the installation bolt in a threaded engagement manner.

[0019] The upper rubber washer and the lower rubber washer can absorb the energy of up-and-down vibration, and the rubber convex ring can absorb the energy of polarization, playing a role in damping the compressor main body, and the damping effect is better.

[0020] Further, it further includes an expansion mechanism. The expansion mechanism includes a cylindrical barrel, a central hole is opened on the cylindrical barrel, an annular bladder and a piston cushion block are installed inside the cylindrical barrel, an expansion cushion plate is connected to the piston cushion block, an expansion spring and an installation angle plate are connected to the expansion cushion plate, and the installation bolt is inserted into the central hole, the annular bladder, the piston cushion block, the expansion cushion plate and the expansion spring.

[0021] The annular bladder absorbs the energy of up-and-down vibration, further increasing the vibration damping effect.

[0022] The locking nut and the expansion backing plate are flexibly connected through an expansion spring, which is used to reduce the vibration energy transmitted from the locking nut to the expansion backing plate, playing a role in reducing vibration and noise.

[0023] By positioning the installation base plate through the annular bladder, people can adjust the state of the locking nut to control the state of the installation base plate, thereby achieving the purpose of leveling, avoiding the problem of severe polarization caused by the inclination of the installation state, and increasing the vibration reduction effect.

[0024] Furthermore, an anti-deviation mechanism is provided on the installation base plate. The anti-deviation mechanism includes an air delivery long pipe, an insertion hole, and a horizontal sensor. The air delivery long pipe is inserted into the installation base plate. One end of the air delivery long pipe is communicated with the total adjustment pipeline, and the other end of the air delivery long pipe is communicated with a middle turntable shell. The middle turntable shell is connected to the installation base plate. A shunt branch pipe is communicated with the middle turntable shell. The insertion hole is opened on the cylindrical barrel. The shunt branch pipe passes through the insertion hole and is communicated with the annular bladder. A throttling solenoid valve is installed on the shunt branch pipe. The horizontal sensor is installed on the installation base plate.

[0025] By controlling the gas to enter the annular bladder through the throttling solenoid valve, the annular bladder is deformed to automatically control the state of the installation base plate, achieving the purpose of automatic leveling, avoiding human adjustment errors, and having a better vibration reduction effect.

[0026] Furthermore, a protection mechanism is provided outside the compressor bottom shell. The protection mechanism includes a protection shell body, and a receiving through hole is opened on the protection shell body. The compressor bottom shell is inserted into the interior of the receiving through hole.

[0027] The protection shell body plays a protective role, avoiding damage to the installation structure, expansion mechanism, and anti-deviation mechanism due to external forces.

[0028] Compared with the prior art, the vibration reduction device for the rare earth permanent magnet variable frequency motor of the freezer refrigeration compressor has the following beneficial effects: First, the present invention absorbs the polarization energy of the variable frequency motor through an energy absorption mechanism to reduce the polarization amplitude of the variable frequency motor, increasing the vibration reduction effect. Through the symmetrical setting between the pressurization mechanism and the compression power component, a balancing force is exerted, reducing the polarization energy of the variable frequency motor and further increasing the vibration reduction effect. Through the pressurization mechanism, the functions of inhaling and compressing gas are realized, so as to introduce the compressed gas into the energy absorption mechanism, increasing the energy absorption effect and further increasing the vibration reduction effect. The vibration reduction effect is excellent, which can effectively reduce the vibration of the variable frequency motor caused by the inclination of the compressor, with small vibration and low noise, improving the practicability of the vibration reduction device for the rare earth permanent magnet variable frequency motor of the freezer refrigeration compressor.

[0029] Second, the present invention can control the operation and stop of the supercharging mechanism through the triggering mechanism, avoid damage caused by continuous inflation of the energy absorption mechanism, ensure the continuous effectiveness of the damping effect, store air kinetic energy through the adjustment mechanism, and enable the damping device for the rare earth permanent magnet variable frequency motor of the refrigerator compressor to change the damping ability of the energy absorption mechanism according to requirements even when the variable frequency motor is not running, which has the effect of increasing damping and improves the practicality of the damping device for the rare earth permanent magnet variable frequency motor of the refrigerator compressor.

[0030] Third, the present invention can absorb vibrations along the axial direction of the mounting bolts through the mounting structure, and can also absorb vibrations perpendicular to the axial direction of the mounting bolts, increasing the damping effect. Through the expansion mechanism, vibrations along the axial direction of the mounting bolts can be absorbed, further increasing the damping effect. Through the cooperation of the mounting structure and the expansion mechanism, people can level the compressor main body, avoid the problem of severe polarization caused by the inclination of the installation state, and increase the damping effect once again. Through the anti-deviation mechanism, the purpose of automatic leveling can be achieved in real time, avoiding human adjustment errors and having a better damping effect. Through the protection mechanism, a protective effect is provided to avoid damage to the mounting structure, the expansion mechanism, and the anti-deviation mechanism due to external forces, ensuring the continuous effectiveness of the damping effect and improving the practicality of the damping device for the rare earth permanent magnet variable frequency motor of the refrigerator compressor.

[0031] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 of the split structure schematic Figure 1 ; Figure 3 For the present invention Figure 1 of the split structure schematic Figure 2 ; Figure 4 For the present invention Figure 3 the three-dimensional structural schematic diagram of the variable frequency motor in the present invention; Figure 5 For the present invention Figure 4 the three-dimensional structural schematic diagram of the mounting structure in the present invention; Figure 6 For the present invention Figure 5 the three-dimensional structural schematic diagram of the mounting base plate in the present invention; Figure 7 For the present invention Figure 5 the three-dimensional structural schematic diagram of the expansion mechanism in the present invention; Figure 8For the present invention Figure 7 Schematic diagram of the split structure; Figure 9 For the present invention Figure 4 Schematic diagram of the split structure of the variable frequency motor in the present invention; Figure 10 For the present invention Figure 9 Schematic diagram of the split structure of the supercharging mechanism in the present invention.

[0033] In the figure: 1. Compressor main body; 101. Compressor bottom shell; 102. Compressor top shell; 103. Wiring controller; 104. Variable frequency motor; 105. Compression power assembly; 106. Vibration damping spring; 2. Energy absorption mechanism; 201. Energy absorption ring body; 202. Accommodating ring groove; 203. Airbag ring; 3. Supercharging mechanism; 301. Supercharging assembly; 302. Supercharging chamber; 303. Suction spring; 304. Supercharging piston; 305. Transmission shaft body; 306. Gas transmission elbow; 4. Trigger mechanism; 401. Trigger round hole; 402. Anti-rotation groove hole; 403. Anti-rotation long strip; 404. Driving screw; 405. Trigger motor; 406. Trigger groove box; 407. Trigger roller; 5. Adjusting mechanism; 501. Energy storage box body; 502. Total adjusting pipeline; 503. Adjusting short branch pipe; 504. Pipe passing hole; 505. Docking hole; 506. Adjusting solenoid valve; 507. Pressure sensor; 508. Vibration sensor; 6. Installation structure; 601. Installation bottom plate; 602. Extension wing; 603. Through hole; 604. Installation bolt; 605. Upper rubber washer; 606. Rubber convex ring; 607. Lower rubber washer; 608. Locking nut; 7. Expansion mechanism; 701. Cylindrical barrel; 702. Central hole; 703. Annular bladder; 704. Piston cushion block; 705. Expansion backing plate; 706. Expansion spring; 707. Installation angle plate; 8. Anti-deviation mechanism; 801. Gas transmission long pipe; 802. Middle turntable shell; 803. Shunt branch pipe; 804. Intersection hole; 805. Shut-off solenoid valve; 806. Horizontal sensor; 807. Adaptation through hole; 808. Isolation rubber tube; 9. Protection mechanism; 901. Protection shell; 902. Accommodating through hole. Detailed implementation method

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0035] Please refer to Figures 1 to 10 , the present invention provides the following implementation scheme: a vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor, including a compressor main body 1. Please pay special attention to refer to Figure 1 , Figure 3 and Figure 4 . The compressor main body 1 includes a compressor bottom shell 101. A compressor top shell 102 is installed on the top of the compressor bottom shell 101. A wiring controller 103 is installed on the side of the compressor bottom shell 101. A variable frequency motor 104 is installed inside the compressor bottom shell 101 and the compressor top shell 102. A compression power assembly 105 is installed on the variable frequency motor 104. An eccentric transmission component is provided on the compression power assembly 105. The variable frequency motor 104 is drivingly connected to the compression power assembly 105 through the eccentric transmission component. A vibration damping spring 106 is installed inside the compressor bottom shell 101. The variable frequency motor 104 is located on the vibration damping spring 106. An energy absorption mechanism 2 is provided inside the compressor bottom shell 101. A pressurization mechanism 3 and an adjustment mechanism 5 are installed on the variable frequency motor 104.

[0036] Please pay special attention to refer to Figure 3 , Figure 4 and Figure 9 . The energy absorption mechanism 2 includes an energy absorption ring body 201. The energy absorption ring body 201 is fixed on the inner wall of the compressor bottom shell 101. The energy absorption ring body 201 is sleeved outside the variable frequency motor 104. A receiving ring groove 202 is opened on the inner wall of the energy absorption ring body 201. An airbag ring 203 is installed inside the receiving ring groove 202. The inner side surface of the airbag ring 203 is pressed on the surface of the variable frequency motor 104.

[0037] The polarization energy of the variable frequency motor 104 is absorbed by the airbag ring 203, so that the polarization amplitude of the variable frequency motor 104 is reduced, achieving the effect of vibration damping and reducing the noise generated by polarization.

[0038] Please pay special attention to refer to Figure 4 and Figure 10The boost mechanism 3 includes a boost component 301, which is mounted on the variable frequency motor 104 and is symmetrical with the compression power component 105. The boost component 301 is provided with a boost chamber 302, and the interior of the boost chamber 302 is provided with an air suction spring 303 and a boost piston 304. The boost piston 304 is provided with a transmission shaft 305, which is transmission-connected to the compression power component 105. The exhaust port of the boost component 301 is connected with an air delivery elbow 306, and the air delivery elbow 306 is connected to the airbag ring 203.

[0039] The symmetrical arrangement between the boost component 301 and the compression power component 105 plays a role of balancing force, thereby reducing the polarization energy of the variable frequency motor 104 and further reducing the polarization amplitude, thereby achieving the effect of reducing noise.

[0040] Through the joint action of the compression power component 105 and the suction spring 303, the booster piston 304 reciprocates inside the booster chamber 302, playing the role of suctioning and compressing gas. The compressed gas is passed into the airbag ring 203 through the air supply bend 306, which increases the internal air pressure of the airbag ring 203 and the energy absorption effect, thereby increasing the vibration reduction effect.

[0041] Please refer to Figure 10 The booster piston 304 is hollow, and a trigger mechanism 4 is provided on the booster piston 304. The trigger mechanism 4 includes a trigger circular hole 401 and a stop groove hole 402. The trigger circular hole 401 and the stop groove hole 402 are provided on the booster piston 304. The transmission shaft 305 is inserted into the trigger circular hole 401. A stop strip 403 is slidably inserted into the stop groove hole 402. The stop strip 403 is connected to the transmission shaft 305. The transmission shaft 305 is internally A driving screw 404 is installed in a threaded manner, and a trigger motor 405 is installed at the end of the driving screw 404. The trigger motor 405 is installed inside the booster piston 304. The trigger mechanism 4 also includes a trigger slot box 406, which is installed on the end of the transmission shaft 305. A trigger roller 407 is installed on the trigger slot box 406, and the trigger roller 407 is adapted to the eccentric transmission component on the compression power assembly 105.

[0042] By the plug-in action between the anti-rotation strip 403 and the anti-rotation slot hole 402, the transmission shaft 305 is prevented from rotating, and by the threaded cooperation between the driving screw 404 and the transmission shaft 305, the trigger motor 405 can drive the trigger slot box 406 to move back and forth, which is used to control the transmission between the trigger roller 407 and the eccentric transmission component on the compression power assembly 105, and then control the movement and stop of the boost piston 304, to prevent the airbag ring 203 from being inflated and bursting.

[0043] Please refer to Figure 4 , Figure 9 andFigure 10 The adjusting mechanism 5 includes an energy storage box body 501, a pipe passing hole 504 and a docking hole 505. The energy storage box body 501 is installed on the variable-frequency motor 104. The air delivery elbow 306 is communicated with the energy storage box body 501. An adjusting main pipeline 502 is communicated with the energy storage box body 501. An adjusting short branch pipe 503 is communicated with the adjusting main pipeline 502. The pipe passing hole 504 is opened on the energy absorption ring body 201. The docking hole 505 is opened on the airbag ring 203. The end of the adjusting short branch pipe 503 passes through the pipe passing hole 504 and is communicated with the docking hole 505. An adjusting solenoid valve 506 is installed on the adjusting short branch pipe 503. A pressure sensor 507 and a vibration sensor 508 are installed on the energy storage box body 501.

[0044] The air kinetic energy is stored in the energy storage box body 501, so that the air pressure inside the airbag ring 203 can be changed according to requirements even when the variable-frequency motor 104 is not running, which has the effect of increasing vibration reduction.

[0045] The internal air pressure of the energy storage box body 501 can be detected in real time through the pressure sensor 507.

[0046] The vibration intensity of the variable-frequency motor 104 can be detected in real time through the vibration sensor 508.

[0047] An electromagnetic exhaust valve can be arranged on the adjusting short branch pipe 503 below the adjusting solenoid valve 506. Both the electromagnetic exhaust valve and the vibration sensor 508 are electrically connected to the wiring controller 103. When the vibration sensor 508 detects that the vibration value is less than the preset range, it transmits a signal to the wiring controller 103, and the wiring controller 103 controls the opening of the electromagnetic exhaust valve to control the reduction of the internal air pressure of the airbag ring 203 to adapt to the temperature change, and the vibration reduction effect is better.

[0048] Please refer particularly to Figure 2 、 Figure 6 、 Figure 7 and Figure 8 It further includes an installation structure 6. The installation structure 6 includes an installation bottom plate 601. The installation bottom plate 601 is installed on the bottom surface of the compressor bottom shell 101. An extension fin 602 is connected to the installation bottom plate 601. A through hole 603 is opened on the extension fin 602. An installation bolt 604 is inserted into the through hole 603. An upper rubber washer 605, a rubber convex ring 606 and a lower rubber washer 607 are sleeved outside the installation bolt 604. The rubber convex ring 606 is inserted into the through hole 603. A locking nut 608 is installed at the bottom end of the installation bolt 604 in a threaded fit manner.

[0049] The energy of the up-and-down vibration can be absorbed through the upper rubber washer 605 and the lower rubber washer 607, and the energy of polarization can be absorbed through the rubber convex ring 606, which plays a role in reducing vibration for the compressor main body 1, and the vibration reduction effect is better.

[0050] Please refer to with emphasis Figure 5 and Figure 7 and Figure 8 , and further includes an expansion mechanism 7. The expansion mechanism 7 includes a cylindrical barrel 701, a central hole 702 is opened on the cylindrical barrel 701, an annular bladder 703 and a piston pad 704 are installed inside the cylindrical barrel 701, an expansion backing plate 705 is connected to the piston pad 704, an expansion spring 706 and a mounting angle plate 707 are connected to the expansion backing plate 705, and a mounting bolt 604 is inserted through the central hole 702, the annular bladder 703, the piston pad 704, the expansion backing plate 705, and the expansion spring 706, and the mounting angle plate 707 is installed on the bottom surface of the inner cavity of the freezer.

[0051] The annular bladder 703 absorbs the energy of the up-and-down vibration, further increasing the damping effect.

[0052] Through the expansion spring 706, a flexible connection is made between the locking nut 608 and the expansion backing plate 705, which is used to reduce the vibration energy transmitted from the locking nut 608 to the expansion backing plate 705, playing a role in damping and noise reduction.

[0053] By positioning the state of the mounting base plate 601 through the annular bladder 703, people can adjust the locking nut 608 to control the state of the mounting base plate 601, thereby achieving the purpose of leveling, avoiding the problem of severe polarization caused by the inclination of the mounting state, and increasing the damping effect.

[0054] Please refer to with emphasis Figure 6 and Figure 8 and Figure 9 , a deviation prevention mechanism 8 is provided on the mounting base plate 601. The deviation prevention mechanism 8 includes an air delivery long pipe 801, an insertion hole 804, and a horizontal sensor 806. The air delivery long pipe 801 is inserted into the mounting base plate 601, one end of the air delivery long pipe 801 is communicated with the adjustment main pipeline 502, the other end of the air delivery long pipe 801 is communicated with a middle turntable housing 802, the middle turntable housing 802 is connected to the mounting base plate 601, a shunt branch pipe 803 is communicated with the middle turntable housing 802, the insertion hole 804 is opened on the cylindrical barrel 701, the shunt branch pipe 803 passes through the insertion hole 804 and is communicated with the annular bladder 703, a shut-off solenoid valve 805 is installed on the shunt branch pipe 803, and the horizontal sensor 806 is installed on the mounting base plate 601.

[0055] An electromagnetic exhaust valve can be provided on the shunt branch pipe 803 between the cylindrical barrel 701 and the intercept solenoid valve 805. The electromagnetic exhaust valve is controlled by the wiring controller 103 and is used to control the reduction of the internal air pressure of the annular bladder 703 to adapt to temperature changes, resulting in better vibration damping effect. The electromagnetic exhaust valve on the shunt branch pipe 803 is connected to the compressor bottom shell 101 through a pipeline to prevent air leakage. At this time, the gas inside the compressor bottom shell 101 is used as the driving gas. In addition, the air inlet of the supercharging assembly 301 can also be connected to the external space through a pipeline. At this time, all electromagnetic exhaust valves are directly connected to the external space, and air is used as the driving gas. The intercept solenoid valve 805 and the wiring controller 103 are electrically connected. When the wiring controller 103 fails to achieve the leveling purpose after opening the corresponding intercept solenoid valve 805 for a certain period of time, the internal air pressures of the annular bladder 703 and the energy storage box body 501 are the same. After that, the wiring controller 103 controls the corresponding electromagnetic exhaust valve to open, causing the annular bladder 703 to deflate and achieving leveling through deflation.

[0056] The gas entering the annular bladder 703 is controlled by the intercept solenoid valve 805, causing the annular bladder 703 to deform, automatically controlling the state of the mounting base plate 601, achieving the purpose of automatic leveling, avoiding manual adjustment errors, and having a better vibration damping effect.

[0057] The energy absorption ring body 201 is provided with an adaptation through hole 807, an isolation rubber tube 808 is inserted on the airbag ring 203, and the air delivery long tube 801 is inserted in the adaptation through hole 807 and the isolation rubber tube 808.

[0058] Please refer specifically to Figure 1 , a protection mechanism 9 is provided outside the compressor bottom shell 101. The protection mechanism 9 includes a protection housing 901, and the protection housing 901 is provided with an accommodation through hole 902. The compressor bottom shell 101 is inserted inside the accommodation through hole 902.

[0059] The protection housing 901 plays a protective role, preventing the installation structure 6, the expansion mechanism 7, and the anti-deviation mechanism 8 from being damaged by external forces.

[0060] Working principle: First, rotate the locking nut 608. Then, under the action of thread fitting, the locking nut 608 moves upward along the mounting bolt 604. Next, the locking nut 608 compresses the expansion spring 706, and the expansion spring 706 is elastically compressed, increasing the elastic potential energy. After that, the downward pulling force exerted by the expansion spring 706 on the mounting bolt 604 through the locking nut 608 increases. Then, the lower rubber washer 607 and the annular bladder 703 are elastically compressed. Next, the extension fin 602 moves downward. If the locking nut 608 is rotated in the reverse direction, the extension fin 602 will move upward. In this way, the position of the extension fin 602 is adjusted. After that, the four locking nuts 608 are operated, and a spirit level is used to detect the horizontal state of the compressor main body 1 during the operation process until the compressor main body 1 is leveled. Thus, the manual leveling work is completed; Then, when the variable-frequency motor 104 is running, the variable-frequency motor 104 drives the compression power assembly 105 to run. Subsequently, the eccentric transmission component on the compression power assembly 105 exerts a thrust on the trigger groove box 406 through the trigger roller 407. After that, the trigger groove box 406 pushes the supercharging piston 304 into the interior of the supercharging chamber 302 through the transmission shaft body 305, the driving screw 404, and the trigger motor 405. Then, the suction spring 303 is compressed, and its elastic potential energy increases. At the same time, the gas inside the supercharging chamber 302 enters the energy storage box body 501 through the gas transmission elbow 306 under the push of the supercharging piston 304. Next, the supercharging piston 304 moves outward under the action of the elastic force of the suction spring 303. After that, the supercharging piston 304 drives the trigger groove box 406 to move synchronously through the trigger motor 405, the driving screw 404, and the transmission shaft body 305. Then, the trigger groove box 406 presses the trigger roller 407 against the surface of the eccentric transmission component on the compression power assembly 105. Subsequently, the gas enters the supercharging chamber 302 under the suction action of the supercharging piston 304. After that, the above process is repeated, and the air pressure inside the energy storage box body 501 gradually increases. Then, the pressure sensor 507 monitors the air pressure in real time and sends the data to the wiring controller 103. When the air pressure inside the energy storage box body 501 reaches the preset maximum value inside the wiring controller 103, the wiring controller 103 controls the trigger motor 405 to run. Then, the trigger motor 405 drives the driving screw 404 to rotate. After that, the transmission shaft body 305 drives the trigger groove box 406 and the trigger roller 407 to approach the supercharging assembly 301 under the action of thread fitting. Then, the trigger roller 407 separates from the eccentric transmission component on the compression power assembly 105. Subsequently, the supercharging mechanism 3 stops running. When the pressure sensor 507 detects that the air pressure is less than the preset minimum value inside the wiring controller 103, the wiring controller 103 controls the trigger motor 405 to run in the reverse direction. After that, a transmission relationship is formed between the trigger roller 407 and the eccentric transmission component on the compression power assembly 105, thus controlling the action and stop of the supercharging mechanism 3; Then, the horizontal sensor 806 detects the horizontal state of the mounting base plate 601 and sends the data to the wiring controller 103. Subsequently, the wiring controller 103 controls the corresponding throttle solenoid valve 805 to open. After that, the gas inside the energy storage box body 501 enters the corresponding annular bladder 703 through the regulating main pipeline 502, the gas transmission long pipe 801, the middle turntable housing 802, and the shunt branch pipe 803 under the drive of the pressure difference. Then, the annular bladder 703 elongates and pushes the corresponding extension fin 602 upward until the horizontal sensor 806 detects that the mounting base plate 601 is horizontal. At this time, the compressor main body 1 is in a horizontal state, thus achieving the purpose of secondary leveling, avoiding problems of abnormal vibration and noise caused by the inclination of the compressor main body 1, and at the same time making the vibration damping device for the rare earth permanent magnet variable-frequency motor of the freezer refrigeration compressor more adaptable to the temperature changes in all seasons and preventing the increase of vibration and noise due to temperature changes; Then, the polarization force generated during the operation of the variable-frequency motor 104 applies pressure to the airbag ring 203. Subsequently, the airbag ring 203 undergoes elastic deformation and applies a damping force to the variable-frequency motor 104, playing a role in vibration reduction and weakening the polarization of the variable-frequency motor 104. Then, the vibration sensor 508 detects the vibration intensity of the variable-frequency motor 104 and sends the data to the wiring controller 103. As the operation time of the variable-frequency motor 104 extends, the wear of components becomes more serious and the vibration intensity gradually increases. When the vibration intensity of the variable-frequency motor 104 is greater than the preset range value inside the wiring controller 103, the wiring controller 103 controls the regulating solenoid valve 506 to open. Subsequently, the gas inside the energy storage box 501 enters the airbag ring 203 through the regulating main pipeline 502 and the regulating short branch pipe 503. After that, the damping force provided by the airbag ring 203 to the variable-frequency motor 104 gradually increases, and then the polarization of the variable-frequency motor 104 gradually weakens until the vibration intensity detected by the vibration sensor 508 falls within the preset range inside the wiring controller 103. Then, the wiring controller 103 controls the regulating solenoid valve 506 to close, thereby reducing polarization.

[0061] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor, comprising a compressor main body (1), characterized in that: The compressor main body (1) includes a compressor bottom shell (101). A compressor top shell (102) is installed on the top of the compressor bottom shell (101). A wiring controller (103) is installed on the side of the compressor bottom shell (101). A variable-frequency motor (104) is installed inside the compressor bottom shell (101) and the compressor top shell (102). A compression power assembly (105) is installed on the variable-frequency motor (104). A damping spring (106) is installed inside the compressor bottom shell (101). The variable-frequency motor (104) is located on the damping spring (106). An energy-absorbing mechanism (2) is provided inside the compressor bottom shell (101). A pressurizing mechanism (3) and an adjusting mechanism (5) are installed on the variable-frequency motor (104).

2. The vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to claim 1, characterized in that: The energy-absorbing mechanism (2) includes an energy-absorbing ring body (201). The energy-absorbing ring body (201) is fixed on the inner wall of the compressor bottom shell (101). The energy-absorbing ring body (201) is sleeved outside the variable-frequency motor (104). A receiving ring groove (202) is formed on the inner wall of the energy-absorbing ring body (201). An airbag ring (203) is installed inside the receiving ring groove (202). The inner side surface of the airbag ring (203) presses on the surface of the variable-frequency motor (104).

3. The vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to claim 2, wherein: The pressurizing mechanism (3) includes a pressurizing assembly (301). The pressurizing assembly (301) is installed on the variable-frequency motor (104) and is symmetrical with the compression power assembly (105). A pressurizing chamber (302) is provided on the pressurizing assembly (301). An intake spring (303) and a pressurizing piston (304) are provided inside the pressurizing chamber (302). A transmission shaft body (305) is installed on the pressurizing piston (304). The transmission shaft body (305) is in transmission connection with the compression power assembly (105). An air delivery elbow (306) is communicated with the exhaust port of the pressurizing assembly (301). The air delivery elbow (306) is communicated with the airbag ring (203).

4. The vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to claim 3, characterized in that: The pressurizing piston (304) is hollow. A triggering mechanism (4) is provided on the pressurizing piston (304). The triggering mechanism (4) includes a triggering round hole (401) and an anti-rotation groove hole (402). The triggering round hole (401) and the anti-rotation groove hole (402) are formed on the pressurizing piston (304). The transmission shaft body (305) is inserted into the triggering round hole (401). An anti-rotation long strip (403) is slidably inserted into the anti-rotation groove hole (402). The anti-rotation long strip (403) is connected to the transmission shaft body (305). A driving screw (404) is installed inside the transmission shaft body (305) in a threaded fit manner. A triggering motor (405) is installed at the end of the driving screw (404). The triggering motor (405) is installed inside the pressurizing piston (304). The triggering mechanism (4) further includes a triggering groove box (406). The triggering groove box (406) is installed at the end of the transmission shaft body (305). A triggering roller (407) is installed on the triggering groove box (406). The triggering roller (407) is adapted to the eccentric transmission component on the compression power assembly (105).

5. The vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to claim 3, wherein: The adjusting mechanism (5) includes an energy storage box body (501), a pipe passing hole (504) and a docking hole (505). The energy storage box body (501) is installed on the variable frequency motor (104). The air delivery elbow pipe (306) is communicated with the energy storage box body (501). An adjusting main pipeline (502) is communicated with the energy storage box body (501). An adjusting short branch pipe (503) is communicated with the adjusting main pipeline (502). The pipe passing hole (504) is opened on the energy absorption ring body (201). The docking hole (505) is opened on the airbag ring (203). The end of the adjusting short branch pipe (503) passes through the pipe passing hole (504) and is communicated with the docking hole (505). An adjusting solenoid valve (506) is installed on the adjusting short branch pipe (503). A pressure sensor (507) and a vibration sensor (508) are installed on the energy storage box body (501).

6. The vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to claim 1, characterized in that: It further includes an installation structure (6). The installation structure (6) includes an installation bottom plate (601). The installation bottom plate (601) is installed on the bottom surface of the compressor bottom shell (101). An extension wing (602) is connected to the installation bottom plate (601). A through hole (603) is opened on the extension wing (602). An installation bolt (604) is inserted into the through hole (603). An upper rubber washer (605), a rubber convex ring (606) and a lower rubber washer (607) are sleeved outside the installation bolt (604). The rubber convex ring (606) is inserted into the through hole (603). A locking nut (608) is installed at the bottom end of the installation bolt (604) in a threaded fit manner.

7. The vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to claim 6, characterized in that: It further includes an expansion mechanism (7). The expansion mechanism (7) includes a cylindrical barrel (701). A central hole (702) is opened on the cylindrical barrel (701). An annular capsule (703) and a piston cushion block (704) are installed inside the cylindrical barrel (701). An expansion cushion plate (705) is connected to the piston cushion block (704). An expansion spring (706) and an installation angle plate (707) are connected to the expansion cushion plate (705). The installation bolt (604) is inserted into the central hole (702), the annular capsule (703), the piston cushion block (704), the expansion cushion plate (705) and the expansion spring (706).

8. A vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to any one of claims 5-7, characterized in that: An anti-deviation mechanism (8) is provided on the installation bottom plate (601). The anti-deviation mechanism (8) includes an air delivery long pipe (801), an insertion hole (804) and a horizontal sensor (806). The air delivery long pipe (801) is inserted into the installation bottom plate (601). One end of the air delivery long pipe (801) is communicated with the adjusting main pipeline (502). The other end of the air delivery long pipe (801) is communicated with a middle turntable shell (802). The middle turntable shell (802) is connected to the installation bottom plate (601). A shunt branch pipe (803) is communicated with the middle turntable shell (802). The insertion hole (804) is opened on the cylindrical barrel (701). The shunt branch pipe (803) passes through the insertion hole (804) and is communicated with the annular capsule (703). A shut-off solenoid valve (805) is installed on the shunt branch pipe (803). The horizontal sensor (806) is installed on the installation bottom plate (601).

9. The vibration damping device for a rare earth permanent magnet variable frequency motor of a freezer refrigeration compressor according to claim 1, wherein: A protection mechanism (9) is provided outside the compressor bottom shell (101). The protection mechanism (9) includes a protection housing (901). An accommodation through hole (902) is formed in the protection housing (901), and the compressor bottom shell (101) is inserted into the interior of the accommodation through hole (902).

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