A compressor vibration damping device and an air conditioner

Abstract

The present invention provides a compressor vibration damping device and an air conditioner. The compressor vibration damping device includes: a compressor, a liquid receiver, a first counterweight device, and a second counterweight device. In the horizontal plane projection, the center of the compressor is O, the centroid of the liquid receiver is O1, the centroid of the first counterweight device is O3, the centroid of the second counterweight device is O4, and there is a distance x3 between O3 and O, a distance x4 between O4 and O, x3 = x4, the mass of the first counterweight device is m3, the mass of the second counterweight device is m4, m3 = m4, the angle between the extension line of the connection line of OO3 and O1O is θ, and the angle between the extension line of the connection line of OO4 and O1O is also θ, 0° < θ < 90°. According to the present invention, when the centroid of the compressor rotates, the centroid of the compressor can move back to the rotation center, solving the problem of centroid offset of the compressor, eliminating the vibration and shaking caused by the centroid offset of the compressor, and ensuring the stable operation of the compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and particularly relates to a compressor vibration damping device and an air conditioner. Background Art

[0002] The compressors in the prior art mainly consist of a compressor main body and a liquid receiver. To reduce the swaying of the liquid receiver, generally, the liquid receiver and the compressor main body are connected and fixed by welding, bolts or clamps. From the overall structure, although it can play a role in fixedly connecting the compressor and the liquid receiver, such a connection method is similar to a cantilever beam structure. When the compressor is operating normally, it will inevitably cause the compressor main body to tilt towards the liquid receiver side, directly acting on the compressor main body, resulting in the offset of the center of mass of the compressor, thereby causing large vibrations and swaying during the operation of the compressor. This non-stable vibration excitation acts on the compressor, causing the compressor to sway greatly back and forth, bending and pulling the pipeline, resulting in a sharp increase in the pipeline stress at the connection pipe joint section of the compressor and the liquid receiver nozzle. When the pipeline stress exceeds the pipeline ultimate stress, the pipeline breaks.

[0003] On the other hand, to reduce the vibration or swaying of the compressor, generally, the compressor is integrally installed and fixed by connecting the bottom of the compressor through a base and foot pads. However, this air conditioner is applied to relevant vehicles such as trucks and logistics vehicles, and the compressor adopts a vertical compressor solution. Compared with the traditional horizontal compressor for vehicles, the vertical compressor has a high center of gravity, poor running stability, and large running stress at the nozzle. Moreover, the vertical compressor for vehicle-mounted air conditioners generally operates during transportation. When encountering harsh external operating environments (such as potholed muddy roads), non-stable vibrations or swaying will occur. This non-stable vibration excitation acts on the compressor, and it will also cause the compressor to sway greatly back and forth, bending and pulling the pipeline, resulting in a sharp increase in the pipeline stress at the connection pipe joint section of the compressor nozzle. At this time, the general vibration damping method (foot pads) simply cannot meet the requirements. When the pipeline stress exceeds the pipeline ultimate stress, the pipeline breaks.

[0004] Therefore, it is urgent to propose an effective technical solution to quickly solve the problems of eccentricity and excessive vibration of the vertical compressor for logistics vehicles, which lead to nozzle fracture, and improve the running stability and service life of vehicle-mounted air conditioners.

[0005] Due to the technical problems in the prior art of vertical compressors for logistics vehicle air conditioners, such as high center of gravity, center of mass offset, poor running stability, complex running and transportation environment, large swaying, and nozzle fracture caused by large nozzle stress of the compressor, the present invention researches and designs a compressor vibration damping device and an air conditioner. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the center-of-mass offset problem of the vertical compressor in the prior art caused by the fixed connection of the liquid receiver, so as to provide a compressor vibration damping device and an air conditioner.

[0007] To solve the above problems, the present invention provides a compressor vibration damping device, which includes:

[0008] A compressor, a liquid receiver, a first counterweight device and a second counterweight device. In the projection plane on the horizontal plane, the center of the compressor is O, the center of mass of the liquid receiver is O1, the center of mass of the first counterweight device is O3, the center of mass of the second counterweight device is O4, and there is a distance x3 between O3 and O, a distance x4 between O4 and O, x3 = x4, the mass of the first counterweight device is m3, the mass of the second counterweight device is m4, m3 = m4, the included angle θ between the extension line of the connection line of OO3 and O1O, and the included angle between the extension line of the connection line of OO4 and O1O is also θ, and 0° < θ < 90°.

[0009] In some embodiments, e is the eccentricity between the center of mass of the compressor and the center of the compressor; x1 is the distance from the center of mass of the rotor to the center of mass of the compressor; x2 is the distance from the center of mass of the liquid receiver to the center of mass of the compressor; m1 is the mass of the compressor; m2 is the mass of the liquid receiver; and there is

[0010] In some embodiments, it further includes a base and a support structure. The compressor and the support structure are both arranged on the base. The liquid receiver is connected to the compressor. The first counterweight device and the second counterweight device are both arranged on the support structure, and the first counterweight device can slide on the support structure, and the second counterweight device can also slide on the support structure.

[0011] In some embodiments, the support structure includes a first vertical column, a second vertical column and a cross bar. The lower end of the first vertical column is connected to the base and extends upward at the upper end. The lower end of the second vertical column is connected to the base and extends upward at the upper end. One end of the cross bar is connected to the upper end of the first vertical column and the other end extends to be connected to the upper end of the second vertical column, and the cross bar is an arc-shaped rod structure. A first groove is provided at the lower end of the first counterweight device, and the first counterweight device can be clamped on the cross bar through the first groove. A second groove is provided at the lower end of the second counterweight device, and the second counterweight device can be clamped on the cross bar through the second groove, and the first counterweight device can slide along the extension direction of the arc-shaped rod structure, and the second counterweight device can also slide along the extension direction of the arc-shaped rod structure.

[0012] In some embodiments, it further includes a first connection structure and a second connection structure. One side of the first connection structure is connected to the first counterweight device, and a first concave-convex mating structure is provided on the other side. One side of the second connection structure is connected to the compressor, and a second concave-convex mating structure is provided on the other side. The first concave-convex mating structure and the second concave-convex mating structure are inserted into each other relatively and form a sliding fit, so that the first connection structure can slide relative to the second connection structure.

[0013] In some embodiments, the first concave-convex mating structure includes a first bump, a second bump, and a third bump that protrude in the direction towards the compressor. The first bump, the second bump, and the third bump are arranged at intervals from top to bottom in the vertical direction. The second concave-convex mating structure includes a fourth bump and a fifth bump that face the first counterweight device. The fourth bump and the fifth bump are arranged at intervals from top to bottom in the vertical direction, and the fourth bump is inserted into the groove between the first bump and the second bump, and the fifth bump is inserted into the groove between the second bump and the third bump.

[0014] In some embodiments, a rolling structure is further provided at the interface between the first concave-convex mating structure and the second concave-convex mating structure. The rolling structure includes a first rolling body provided between the lower end surface of the first bump and the upper end surface of the fourth bump, a second rolling body provided between the lower end surface of the second bump and the upper end surface of the fifth bump, and a third rolling body provided between the lower end surface of the fifth bump and the upper end surface of the third bump.

[0015] In some embodiments, the inner peripheral surfaces of the first bump, the second bump, and the third bump are all arc-shaped surfaces. The fourth bump is an arc-shaped strip surrounding the compressor, and the fifth bump is also an arc-shaped strip surrounding the compressor. The outer peripheral surfaces of the fourth bump and the fifth bump are both arc-shaped surfaces.

[0016] In some embodiments, the second connection structure is an integral connection clamp, and a clamping groove is further provided on its inner peripheral side. A ring-shaped clamp is provided on the outer periphery of the compressor, and the clamp is clamped and fixed with the clamping groove.

[0017] In some embodiments, it further includes a third connection structure. One side of the third connection structure is connected to the second counterweight device, and a third concave-convex mating structure is provided on the other side. The third concave-convex mating structure and the second concave-convex mating structure are inserted into each other relatively and form a sliding fit, so that the third connection structure can slide relative to the second connection structure.

[0018] In some embodiments, it further includes a foot pad. A third groove is provided on the base. The upper end of the foot pad is fixedly connected to the compressor, the lower end is received in the third groove, and an elastic structure is further provided between the lower end of the foot pad and the bottom of the third groove.

[0019] In some embodiments, it further includes a plunger, a connecting rod, a compressed air chamber, and a communication channel. The compressed air chamber and the communication channel are both provided on the base, and the communication channel communicates with the bottom of the third groove. The lower end of the communication channel communicates with the upper end of the compressed air chamber. The plunger is provided in the compressed air chamber, at least part of the connecting rod is provided in the communication channel, the upper end of the connecting rod is connected to the lower end of the foot pad, and the lower end of the connecting rod is connected to the lower end of the plunger. When the foot pad moves downward, it can drive the connecting rod and the plunger to move downward in sequence to compress the gas in the compressed air chamber. The compressed gas in the compressed air chamber can push the first counterweight device or the second counterweight device to move. In the projection plane of the horizontal plane, the moving direction of the first counterweight device or the second counterweight device is away from the foot pad.

[0020] In some embodiments, it further includes a connecting pipe, a fourth groove, and a push rod structure. One end of the connecting pipe communicates with the compressed air chamber, and the other end communicates with the fourth groove. The fourth groove is opened on the bracket structure. The push rod structure is provided in the fourth groove. The first counterweight device or the second counterweight device is provided at the upper end of the fourth groove. The gas introduced into the compressed air chamber can be introduced into the fourth groove through the connecting pipe to push the push rod structure to move, and then the first counterweight device or the second counterweight device is pushed to move through the push rod structure.

[0021] In some embodiments, the push rod structure includes a first piston, a second piston, and a push rod. The first piston, the second piston, and the push rod are all provided in the fourth groove. The first piston is connected to one end of the push rod, and the second piston is connected to the other end of the push rod. The first piston can be pushed by the gas to drive the push rod and the second piston to push the first counterweight device or the second counterweight device to move.

[0022] The present invention also provides an air conditioner, which includes the compressor vibration damping device described in any one of the previous items.

[0023] A compressor vibration damping device and an air conditioner provided by the present invention have the following beneficial effects:

[0024] 1. The present invention solves the problem of the center of mass offset of a compressor by providing a first counterweight device and a second counterweight device, setting the two counterweight devices to have the same mass (m3 = m4) and the same distance from the center O of the compressor (x3 = x4), and in particular, the included angles between the lines connecting the two counterweights to O and the extension line of the line connecting the liquid receiver to O are both θ, and 0° < θ < 90°. This enables both counterweights to be located on one side opposite to the axis connecting the compressor and the liquid receiver, that is, the double counterweight device of the present invention is arranged on the other side of the axis connecting the compressor and the liquid receiver at a certain angle in the reverse direction. When the compressor rotates, the center of mass of the compressor moves back to the center of rotation, thus solving the problem of the center of mass offset of the compressor, and also solving the problems of poor running stability caused by the high center of gravity of the vertical compressor and the center of mass offset of the compressor caused by its fixed connection to the liquid receiver. Thereby, the vibration and shaking problems caused by the center of mass offset of the compressor are eliminated, ensuring the stable operation of the compressor. Moreover, the designed double counterweight device is symmetrically arranged on both sides of the axis at a certain angle, that is, by adding counterweights, the original unbalanced force system reaches a balanced state, further solving the problems of poor running stability, large transportation vibration and shaking caused by the high center of gravity of the compressor, and the subsequent problems caused by the excessive pipeline stress and fracture failure, thus avoiding unnecessary subsequent problems.

[0025] 2. The present invention also, through the settings of the foot pads and the elastic structure, enables part of the vibration energy to be attenuated through the foot pads and springs when one side of the foot pads at the bottom of the compressor vibrates and compresses, playing a certain vibration damping role. Also, through the cooperation setting form of the plunger, the connecting rod and the two counterweight devices on the support structure of the base, starting from the vibration damping foot pads and the slidable counterweight device used in conjunction with the compressor, the vibration damping foot pads, the springs and the plunger are connected through a straight rod, the base and the two counterweight devices to form an integrated vibration damping device. When one side of the foot pads at the bottom of the compressor vibrates and compresses, part of the vibration energy is attenuated through the foot pads and springs, and the remaining part of the vibration energy compresses the gas cavity by pushing the plunger connected to the end of the straight rod. The gas compressed in the gas cavity enters the gas cavity of the support structure through a hose, and then compresses the push rod structure to push the counterweight to move to the other side, so as to increase the reverse side gravity of the whole compressor, thus enabling the whole compressor to quickly reach a new temporary force system balance state, thereby reducing the vibration and shaking of the compressor. This way of using the kinetic energy generated by the vibration of the compressor itself for vibration damping fully reduces the vibration of the compressor and greatly improves the smooth running performance of the compressor, solving the problem of pipe breakage caused by excessive vibration or shaking of the vehicle-mounted vertical compressor due to its unstable running or transportation state.

[0026] 3. The present invention protects a base device and a sliding counterweight structure. The base device is equipped with a vibration damping device inside its bottom for reducing the vibration of the compressor. The intermediate support structure is embedded with a connecting pipe. The way the connecting pipe is placed inside the base fully ensures the smooth flow and tightness of the compressed gas in the hose. The upper end is designed as an open arc structure and is provided with a push rod structure inside for pushing the counterweight to move, thereby reducing the vibration of the compressor. The lower end of the sliding counterweight structure is provided with an arc groove, which cooperates with the support structure of the base to move. The structure is simple, and its upper end is provided with a counterweight connection device, which is composed of three upper, middle and lower arc connecting blocks and is assembled and connected to the snap ring structure. A circular hole groove is opened in the middle of the three arc connecting blocks and is used together with the ball bodies on the snap ring to form a slidable counterweight structure. The space is compact and the layout is reasonable, which can reduce the vibration or shaking of the compressor to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structure diagram of the compressor vibration damping device of the present invention;

[0028] Figure 2 is a schematic diagram of the centroid offset of the connecting piece structure of the compressor vibration damping device of the present invention;

[0029] Figure 3 is a sectional view of the counterweight and push rod structure of the compressor connecting piece of the present invention;

[0030] Figure 3a is Figure 3 a partial enlarged view of part A of

[0031] Figure 4 is a sectional view of the vibration damping structure of the compressor connecting piece structure of the present invention;

[0032] Figure 5 is a sectional view of the counterweight and push rod structure of the compressor connecting piece of the present invention.

[0033] The reference numerals are shown as:

[0034] 1. Base; 1a. Third groove; 2. Foot pad; 3. Push rod structure; 31. First piston; 32. Second piston; 33. Push rod; 41. First counterweight device; 411. First groove; 42. Second counterweight device; 5. Compressor; 6. Second connection structure; 61. Fourth convex block; 62. Fifth convex block; 7. Liquid reservoir; 8. Clamp; 9. Bracket structure; 91. First column; 92. Second column; 93. Cross bar; 94. Fourth groove; 10. First connection structure; 101. First convex block; 102. Second convex block; 103. Third convex block; 11. Rolling structure; 111. First rolling element; 112. Second rolling element; 113. Third rolling element; 12. Third connection structure; 13. Elastic structure; 14. Plunger; 15. Connecting rod; 16. Compressed air chamber; 17. Communication channel; 18. Communication pipe. Detailed implementation manner

[0035] As Figures 1-5 , the present invention provides a compressor vibration damping device, which includes:

[0036] A compressor 5, a liquid reservoir 7, a first counterweight device 41 and a second counterweight device 42. In the projection plane on the horizontal plane, the center of the compressor 5 is O, the center of mass of the liquid reservoir 7 is O1, the center of mass of the first counterweight device 41 is O3, the center of mass of the second counterweight device 42 is O4, and there is a distance x3 between O3 and O, a distance x4 between O4 and O, x3 = x4, the mass of the first counterweight device 41 is m3, the mass of the second counterweight device 42 is m4, m3 = m4, the included angle θ between the extension line of the connection line of OO3 and O1O, and the included angle between the extension line of the connection line of OO4 and O1O is also θ, and 0° < θ < 90°.

[0037] By providing a first counterweight device and a second counterweight device, and setting the two counterweight devices to have the same mass (m3 = m4) and the same distance from the center O of the compressor (x3 = x4), especially when the included angles between the lines connecting the two counterweights to O and the extension line of the line connecting the liquid receiver to O are both θ, and 0° < θ < 90°, it can be ensured that both counterweights are located on one side opposite to the axis connecting the compressor and the liquid receiver. That is, the double counterweight device of the present invention is arranged in the opposite direction with a certain included angle on the other side of the axis connecting the compressor and the liquid receiver. Thus, when the compressor rotates, the center of mass of the compressor can return to the rotation center, thereby solving the problem of the offset of the center of mass of the compressor, and solving the problems of poor running stability of the vertical compressor due to its high center of gravity and the offset of the center of mass of the compressor caused by its fixed connection to the liquid receiver. Therefore, the vibration and shaking problems caused by the offset of the center of mass of the compressor can be eliminated, ensuring the stable operation of the compressor. Moreover, the designed double counterweight device is symmetrically arranged on both sides of the axis with a certain angle, that is, by adding counterweights, the original unbalanced force system can reach an equilibrium state, thereby solving the problems of poor running stability, large transportation vibration and shaking caused by the high center of gravity of the compressor, and the after-sales problems caused by the excessive pipeline stress and fracture failure, avoiding unnecessary after-sales problems.

[0038] The reasons for the large shaking of the compressor consist of two parts. One part is that due to the high center of gravity of the vehicle-mounted vertical compressor and the connection between the compressor and the liquid receiver, its structure is similar to a cantilever beam, and during operation, the center of mass of the compressor will inevitably deviate towards the liquid receiver side, resulting in large shaking. The other part is that since the vehicle-mounted vertical compressor is installed at the bottom of the vehicle, the operating and transportation environments are complex, which will also cause large vibration and shaking. First, the double counterweight structure of the present invention is arranged in the opposite direction on the other side of the liquid receiver, offsetting the eccentric problem caused by the connection between the liquid receiver and the compressor. The center of mass of the compressor does not shift, and the vibration and shaking will naturally be reduced. Secondly, the designed shock-absorbing device also plays a role in reducing the vibration and shaking problems under the operating conditions of the compressor. Finally, the shock-absorbing device in the base is embedded with a hose and cooperates with the slidable double counterweight device. When the compressor is operating and transporting under unstable conditions, the foot pad on the shaking side of the compressor is compressed, thereby pushing the counterweight to reach a new temporary force system balance and solving the problem of large shaking.

[0039] In order to eliminate or offset the problem that the center of mass of the main body of the compressor shifts towards the liquid receiver side under normal operating conditions, and reduce or eliminate the large vibration or shaking generated under non-stable conditions (such as vehicle-mounted air conditioners, ship-mounted air conditioners) or when the compressor encounters a harsh external operating environment (such as a potholed muddy road) during transportation, which causes the pipe stress at the compressor nozzle to be large and leads to the problem of pipe damage and fracture failure. This implementation plan mainly provides an anti-eccentric compressor shock-absorbing structure. An anti-eccentric compressor shock-absorbing structure involved in this application, such as Figure 1As shown in the figure, it mainly consists of a slidable counterweight, a push rod structure, shock-absorbing foot pads, a hose, a base, a snap ring, a compressor and other structures.

[0040] Specifically, starting from the perspective of solving and reducing the poor running stability of a vertical compressor due to its high center of gravity, and the problem of the center of mass offset of the compressor caused by the fixed connection with the liquid receiver, a slidable double counterweight device is designed. The double counterweight slidable device is arranged on the other side of the axis connecting the compressor and the liquid receiver at a certain angle θ in the reverse direction, as Figure 2 shown. The designed double-sliding counterweight device is symmetrically arranged on both sides of the axis at a certain angle, that is, by increasing the counterweight, the original unbalanced force reaches a new balance state, thereby solving the problems of poor running stability, large transportation vibration and shaking of the compressor caused by its high center of gravity, and the fracture failure of the pipeline stress caused by this, and avoiding unnecessary after-sales problems.

[0041] In some embodiments, e is the eccentricity between the center of mass of the compressor and the center of the compressor 5; x1 is the distance from the center of mass of the rotor to the center of mass of the compressor; x2 is the distance from the center of mass of the liquid receiver to the center of mass of the compressor; m1 is the mass of the compressor; m2 is the mass of the liquid receiver; and there is Such a setting form can ensure that the overall eccentricity of the compressor is located at the center of the compressor after two counterweight devices are set, effectively eliminating the mass eccentricity.

[0042] When the compressor is in normal operating conditions, the rotor in the compressor body is in a high-speed running state, and centrifugal inertial torque will inevitably be generated. And the connection between the compressor and the liquid receiver is similar to a cantilever beam structure, and a reverse resistance centrifugal torque will inevitably be generated, resulting in the offset of the center of mass o of the compressor, and the eccentricity is e, as Figure 4 shown. To offset or eliminate the offset of the center of mass of the compressor to the greatest extent, ensure that the center of mass of the compressor is in a balanced position, and reduce the vibration or shaking of the compressor, the double counterweight device is arranged on the reverse side of the axis connecting the compressor and the liquid receiver ( Figure 4 the x-axis in it) at a certain angle θ in the reverse direction. Further, when the double counterweight is added, the compressor body must be in a balanced state, that is, the eccentricity e = 0. Therefore, the counterweight mass can be calculated, and the eccentricity calculation formula:

[0043]

[0044] In the formula, m1, m2, x1, x2, x3, x4, θ are all known numbers (such as Figure 3As shown, the counterweight mass m3 (m3 = m4) can be calculated, so that when the compressor rotates, the center of mass of the compressor moves back to the center of rotation, thus solving the problem of the center of mass offset of the compressor, eliminating the vibration and sway caused by the center of mass offset of the compressor, and ensuring the stable operation of the compressor.

[0045] In some embodiments, it further includes a base 1 and a support structure 9. The compressor 5 and the support structure 9 are both arranged on the base 1. The liquid receiver 7 is connected to the compressor 5. The first counterweight device 41 and the second counterweight device 42 are both arranged on the support structure 9, and the first counterweight device 41 can slide on the support structure 9, and the second counterweight device 42 can also slide on the support structure 9. Through the setting of the base, the compressor can be effectively supported thereon. The setting of the support structure can be used to effectively support the two counterweight devices, and enable the two counterweight devices to slide on the support structure, so as to adjust the position of the counterweight device according to the actual eccentricity of the compressor, thereby realizing a new centroid eccentricity counterweight position, eliminating the eccentricity of the compressor in the dynamic process, and further effectively improving the elimination of the vibration and sway problems caused by the center of mass offset of the compressor, and ensuring the stable operation of the compressor.

[0046] In some embodiments, the support structure 9 includes a first upright column 91, a second upright column 92 and a cross bar 93. The lower end of the first upright column 91 is connected to the base 1 and extends upward at the upper end. The lower end of the second upright column 92 is connected to the base 1 and also extends upward at the upper end. One end of the cross bar 93 is connected to the upper end of the first upright column 91 and the other end extends to be connected to the upper end of the second upright column 92, and the cross bar 93 is an arc-shaped rod structure. A first groove 411 is provided at the lower end of the first counterweight device 41, and the first counterweight device 41 can be clamped on the cross bar 93 through the first groove 411. A second groove is provided at the lower end of the second counterweight device 42, and the second counterweight device 42 can be clamped on the cross bar 93 through the second groove, and the first counterweight device 41 can slide along the extension direction of the arc-shaped rod structure, and the second counterweight device 42 can also slide along the extension direction of the arc-shaped rod structure. This is a further preferred structural form of the support structure of the present invention. Through the first upright column and the second upright column, the cross bar can be effectively supported to a certain height position. The two counterweight devices are respectively arranged on the cross bar and can slide along the arc-shaped structure of the cross bar. The setting of the counterweight device at a sufficient height can effectively support the eccentricity in the height direction of the compressor, preventing the compressor from shifting, vibrating or even tipping over due to excessive height.

[0047] In some embodiments, it further includes a first connection structure 10 and a second connection structure 6. One side of the first connection structure 10 is connected to the first counterweight device 41, and a first concave-convex mating structure is provided on the other side. One side of the second connection structure 6 is connected to the compressor 5, and a second concave-convex mating structure is provided on the other side. The first concave-convex mating structure and the second concave-convex mating structure are relatively inserted and form a sliding fit, so that the first connection structure 10 can slide relative to the second connection structure 6. The present invention also, through the arrangement of the first connection structure and the second connection structure, can slidably support the upper part of the first counterweight device on the compressor, so as to ensure that on the basis of supporting the upper part of the compressor by two counterweight devices, the lower part of the counterweight device is supported by a bracket structure and the upper part is supported by the compressor, ensuring that the counterweight device can slide along the crossbar of the bracket connection while effectively connecting with the compressor, so as to instantaneously support and adjust the upper eccentricity of the compressor, reduce vibration, reduce sway, and prevent the occurrence of fracture caused by excessive pipeline stress.

[0048] In some embodiments, the first concave-convex mating structure includes a first convex block 101, a second convex block 102, and a third convex block 103 protruding towards the compressor 5. The first convex block 101, the second convex block 102, and the third convex block 103 are sequentially arranged at intervals from top to bottom in the vertical direction. The second concave-convex mating structure includes a fourth convex block 61 and a fifth convex block 62 facing the first counterweight device 41. The fourth convex block 61 and the fifth convex block 62 are sequentially arranged at intervals from top to bottom in the vertical direction, and the fourth convex block 61 is inserted into the groove between the first convex block 101 and the second convex block 102, and the fifth convex block 62 is inserted into the groove between the second convex block 102 and the third convex block 103.

[0049] This is the preferred structural form of the first concave-convex mating structure of the first connection structure of the present invention and the preferred structural form of the second concave-convex mating structure of the second connection structure. Through three convex blocks arranged in sequence in the vertical direction, grooves can be formed between two adjacent convex blocks. The fourth and fifth convex blocks of the second concave-convex mating structure are also arranged at intervals up and down in the vertical direction. The fourth convex block is inserted between the first and second convex blocks, and the fifth convex block is inserted between the second and third convex blocks, enabling plug-in cooperation between the two concave-convex matings, and the two can slide relative to each other, forming an effective sliding snap-fit between the two connection structures, which can form a limit between the axial and radial directions of the two, and can slide in the circumferential direction, realizing the support of the compressor by the counterweight device to overcome eccentricity while being able to slide according to the movement of the eccentric position, and adjusting the eccentric position to always ensure the stable and reliable operation of the compressor.

[0050] In some embodiments, a rolling structure 11 is further provided at the joint surface between the first concave-convex fitting structure and the second concave-convex fitting structure. The rolling structure 11 includes a first rolling body 111 disposed between the lower end surface of the first convex block 101 and the upper end surface of the fourth convex block 61, a second rolling body 112 disposed between the lower end surface of the second convex block 102 and the upper end surface of the fifth convex block 62, and a third rolling body 113 disposed between the lower end surface of the fifth convex block 62 and the upper end surface of the third convex block 103. The present invention further improves the rolling friction effect between the convex block surfaces of the two fittings by providing a rolling structure between the two concave-convex fitting structures, changing the sliding friction to rolling friction, reducing the friction loss, reducing the resistance of the centering movement, and improving the centering effect.

[0051] In some embodiments, the inner peripheral surfaces of the first convex block 101, the second convex block 102, and the third convex block 103 are all arc-shaped surfaces. The fourth convex block 61 is an arc-shaped strip surrounding the compressor 5, and the fifth convex block 62 is also an arc-shaped strip surrounding the compressor. The outer peripheral surfaces of the fourth convex block 61 and the fifth convex block 62 are both arc-shaped surfaces. The present invention further preferably sets the inner peripheral surfaces of the three convex blocks to be arc-shaped surfaces, which can be adapted to the outer peripheral surface of the cylindrical compressor housing and matched with the arc-shaped groove surface between the fourth and fifth convex blocks, realizing the arc connection and sliding effect between multiple joint surfaces, reducing the resistance of the sliding movement, and improving the centering effect.

[0052] In some embodiments, the second connecting structure 6 is an integral connecting clamp ring, and a clamping groove is further provided on its inner peripheral side. An annular clamp 8 is provided on the outer periphery of the compressor 5, and the clamp 8 is clamped and fixed with the clamping groove. This is a further preferred structural form of the second connecting structure of the present invention. By setting it as a connecting clamp ring and providing a clamping groove on the inner peripheral side, it can cooperate with the clamp on the outer periphery of the compressor, effectively clamping the connecting clamp ring onto the clamp of the compressor, and realizing the effective fixing function of the second connecting structure.

[0053] In some embodiments, a third connecting structure 12 is further included. One side of the third connecting structure 12 is connected to the second counterweight device 42, and a third concave-convex matching structure is provided on the other side. The third concave-convex matching structure is inserted into and slidably matched with the second concave-convex matching structure, so that the third connecting structure 12 can slide relative to the second connecting structure 6. By providing the third connecting structure, the upper part of the third counterweight device can be slidably supported on the compressor, so as to ensure that on the basis of supporting the upper part of the compressor by two counterweight devices, the lower part of the counterweight device is supported by a bracket structure and the upper part is supported by the compressor, ensuring that the counterweight device can slide along the crossbar of the bracket connection while effectively connecting with the compressor, so as to instantaneously support and adjust the upper eccentricity on the other side of the compressor, reduce vibration, reduce sway, and further prevent the occurrence of pipeline breakage caused by excessive pipeline stress.

[0054] In some embodiments, a foot pad 2 is further included. A third groove 1a is provided on the base 1. The upper end of the foot pad 2 is fixedly connected to the compressor 5, and the lower end is received in the third groove 1a. An elastic structure 13 is further provided between the lower end of the foot pad 2 and the bottom of the third groove 1a.

[0055] By providing the foot pad and the elastic structure, when a certain side of the foot pad at the bottom of the compressor vibrates and compresses, part of the vibration energy is attenuated through the foot pad and the spring, playing a certain role in vibration reduction.

[0056] In some embodiments, a plunger 14, a connecting rod 15, a compressed air chamber 16 and a communication channel 17 are further included. The compressed air chamber 16 and the communication channel 17 are both provided on the base 1, and the communication channel 17 is communicated with the bottom of the third groove 1a. The lower end of the communication channel 17 is communicated with the upper end of the compressed air chamber 16. The plunger 14 is disposed in the compressed air chamber 16. At least part of the connecting rod is disposed in the communication channel. The upper end of the connecting rod 15 is connected to the lower end of the foot pad 2, and the lower end of the connecting rod 15 is connected to the lower end of the plunger 14. When the foot pad 2 moves downward, it can drive the connecting rod 15 and the plunger 14 to move downward in sequence to compress the gas in the compressed air chamber 16. The compressed gas in the compressed air chamber 16 can push the first counterweight device 41 or the second counterweight device 42 to move. In the projection plane of the horizontal plane, the moving direction of the first counterweight device 41 or the second counterweight device 42 is away from the foot pad 2.

[0057] The present invention also sets up a cooperation form between a plunger, a connecting rod and two counterweight devices on a bracket structure on the base. Starting from the vibration damping foot pads and the slidable counterweight devices used in conjunction with the compressor, the vibration damping foot pads, springs and plungers are connected through a straight rod, a base and two counterweight devices to form an integrated vibration damping device. When a foot pad on one side at the bottom of the compressor vibrates and compresses, part of the vibration energy is attenuated through the foot pad and the spring, and the remaining part of the vibration energy compresses the gas chamber by compressing the plunger connected to the end of the straight rod. The gas compressed in the gas chamber enters the gas chamber of the bracket structure through a hose, and then compresses the push rod structure to push the counterweight to move to the other side, so as to increase the reverse side gravity of the whole compressor, so that the whole compressor can quickly reach a new temporary force system balance state, thereby reducing the vibration and shaking of the compressor. This way of using the kinetic energy generated by the vibration of the compressor itself for vibration damping fully reduces the vibration of the compressor and greatly improves the smooth operation of the compressor, and solves the problem of pipe breakage caused by excessive vibration or shaking due to the unstable operation or transportation state of the vehicle-mounted vertical compressor.

[0058] In some embodiments, when the bracket structure 9 is included:

[0059] The compressor vibration damping device further includes a connecting pipe 18, a fourth groove 94 and a push rod structure 3. One end of the connecting pipe 18 is communicated with the compressed gas chamber 16, and the other end is communicated into the fourth groove 94. The fourth groove 94 is opened on the bracket structure 9. The push rod structure 3 is arranged in the fourth groove 94. The first counterweight device 41 or the second counterweight device 42 is arranged at the upper end of the fourth groove 94. The gas introduced into the compressed gas chamber 16 can be introduced into the fourth groove 94 through the connecting pipe 18 and push the push rod structure 3 to move, and then push the first counterweight device 41 or the second counterweight device 42 to move through the push rod structure 3.

[0060] The present invention also arranges a connecting pipe, a fourth groove and a push rod structure, which can introduce gas from the compressed gas chamber through the connecting pipe and enter the fourth groove, and further push the push rod structure to move through the gas pressure in the fourth groove to drive the first counterweight device or the second counterweight device to move; for example, when the compressor tilts downward to one side, the foot pad at this position moves downward to drive the connecting rod and the plunger to move downward and compress the gas in the compressed gas chamber. Then the compressed gas enters the fourth groove in the bracket structure and pushes the counterweight device corresponding to the position of the foot pad in the horizontal plane to move away from the foot pad, so as to adjust the height center of gravity of the compressor to the opposite side of the foot pad, effectively reducing the eccentric movement caused by the height offset, thereby reducing vibration or shaking and preventing the problem of pipe breakage.

[0061] Specifically, for the base device and the sliding double-counterweight structure designed in the present invention, on the one hand, for the base device, a vibration damping device is assembled inside its bottom, such as Figure 4 shown, which is used to reduce the vibration of the compressor. The middle support structure is embedded with a hose. The hose is placed inside the base in a way that fully ensures the smooth flow and tightness of the compressed gas inside the hose. The upper end is designed as an open arc structure and is provided with a push rod structure inside, which is used to push the counterweight to move, thereby reducing the vibration of the compressor; on the other hand, for the sliding counterweight structure, such as Figure 3 shown, the lower end of the counterweight for sliding connection is provided with an arc groove, which is used to cooperate with the support structure of the base for movement. The structure is simple, and a counterweight connection device is also provided at the connection part between its upper end and the compressor. This device is composed of three upper, middle and lower arc-shaped connecting blocks, and the assembly is welded on the snap ring structure. Circular hole grooves are opened on the end faces of the three arc-shaped connecting blocks in contact with the connecting snap ring, which are used to cooperate with the ball bodies on the snap ring to form a slidable counterweight structure. The space is compact and the layout is reasonable, which can reduce the vibration or shaking of the compressor to the greatest extent.

[0062] It should be noted that the designed connecting snap ring structure is provided with clamping grooves on both the inner and outer sides, specifically as Figure 1 and Figure 3 shown. The clamping groove opened on the inner side of the connecting snap ring is used for assembly and positioning with the clamp, and the clamping groove opened on the outer side is used for connection and positioning with the arc-shaped connecting block of the counterweight. The structure is compact; the included angle θ between the designed slidable double-counterweight and the x-axis, specifically as Figure 2 shown, and its value range is: 0° < θ < 90°. In combination with the sliding stroke of the push rod, it is ensured that the counterweight structure is definitely located on the reverse side of the liquid storage device.

[0063] In some embodiments, the push rod structure 3 includes a first piston 31, a second piston 32 and a push rod 33. The first piston 31, the second piston 32 and the push rod 33 are all arranged in the fourth groove 94. The first piston 31 is connected to one end of the push rod 33, the second piston 32 is connected to the other end of the push rod 33, and the first piston 31 can be pushed by gas to drive the push rod 33 and the second piston 32 to push the first counterweight device 41 or the second counterweight device 42 to move. This is the preferred structural form of the push rod structure of the present invention, that is, the first piston is used to act on the gas introduced into the communication pipe, the push rod is used to transmit power, the second piston acts on the counterweight device to drive the counterweight device to move. The first piston and the second piston are preferably in sealed contact with the fourth groove, and there is a gap between the push rod and the fourth groove. Therefore, it can ensure that the original pressure will not leak and ensure the effect that the pressure can drive the counterweight device to move.

[0064] The shape and fixed connection method of the counterweight are not limited to the above one, and other shapes can also be used to manufacture counterweights of different shapes, such as cylindrical, pentagonal, hexagonal and other shapes. However, when using other shapes, the adaptability of the connection and assembly with the snap ring structure and the convenience of sliding should be considered.

[0065] The present invention also provides an air conditioner, which includes the compressor vibration damping device described in any one of the preceding items.

[0066] Starting from the angle of solving the problem of pipe breakage caused by excessive vibration or shaking of the vertical compressor due to its unstable operation or transportation state during work, the present invention designs a vibration damping device, such as Figure 4 and Figure 5 As shown, starting from the vibration damping foot pads used in cooperation with the compressor and the designed slidable counterweight device, the vibration damping device connects the vibration damping foot pads, springs and plungers through straight rods and bases to form a vibration damping device. When a certain side foot pad at the bottom of the compressor vibrates and compresses, part of the vibration energy is attenuated through the foot pad and the spring, and the rest of the vibration energy compresses the gas cavity by pushing the plunger connected to the end of the straight rod. The gas compressed in the gas cavity enters the gas cavity of the bracket structure through a hose, and then compresses the push rod structure to push the counterweight to move to the other side, so as to increase the overall reverse side gravity of the compressor and reduce the gravity of the foot pad on the compressed side, so that the whole compressor can quickly reach a new temporary force system balance state, thereby slowing down the vibration and shaking of the compressor. This way of using the kinetic energy generated by the vibration of the compressor itself to reduce vibration fully reduces the vibration of the compressor and greatly improves the smooth operation of the compressor, and solves the problem of pipe breakage caused by excessive vibration or shaking of the vehicle-mounted vertical compressor due to its unstable operation or transportation state during work.

[0067] 1. The present invention protects a slidable double counterweight device, which is arranged on the other side of the axis connecting the compressor and the liquid receiver at a certain angle in the reverse direction, so that when the compressor rotates, the center of mass of the compressor moves back to the center of rotation, thereby solving the problem of the offset of the center of mass of the compressor, and eliminating the vibration and shaking problems caused by the offset of the center of mass of the compressor, and ensuring the stable operation of the compressor; and the designed double counterweight device is symmetrically arranged on both sides of the axis at a certain angle, that is, by increasing the counterweight, the original unbalanced force system reaches a balanced state, thereby solving the problems of poor operation stability, large transportation vibration and shaking caused by the high center of gravity of the compressor, and the fracture failure of the pipeline stress caused by the large vibration, and avoiding unnecessary after-sales problems.

[0068] 2. The present invention protects a vibration damping device. Starting from the vibration damping foot pad used in conjunction with the compressor and the designed sliding counterweight device, the vibration damping foot pad, spring and plunger are connected by a straight rod and a base to form a vibration damping device. One end of the straight rod is connected to the vibration damping foot pad, and the other end is connected to the plunger. The structure is compact and the layout is reasonable. When a foot pad on one side of the compressor bottom vibrates and compresses, part of the vibration energy is attenuated by the foot pad and the spring, and the remaining vibration energy compresses the gas chamber by pushing the plunger connected to the end of the straight rod. The gas compressed in the gas chamber enters the gas chamber of the support structure through a hose, and then compresses the push rod structure to push the counterweight to move to the other side, so as to increase the overall reverse-side gravity of the compressor, so that the compressor as a whole can quickly reach a new temporary force system balance state, thereby effectively reducing and slowing down the vibration and shaking of the compressor under non-stable operating conditions, and further improving the operation and transportation stability of the air-conditioning system. This way of using the self-vibration of the compressor to generate kinetic energy for vibration damping fully reduces the vibration of the compressor, greatly improves the smooth operation of the compressor, and solves the problem of pipe breakage caused by excessive vibration or shaking of the vehicle-mounted vertical compressor due to its unstable operation or transportation state.

[0069] 3. The present invention protects a base device and a sliding counterweight structure. The designed base device is equipped with a vibration damping device inside its bottom for reducing the vibration of the compressor. The middle support structure is embedded with a hose, and the way of placing the hose inside the base fully ensures the smooth flow and sealing of the compressed gas in the hose. The upper end is designed as an open arc structure and is provided with a push rod structure for pushing the counterweight to move, so as to reduce the vibration of the compressor. The lower end of the sliding counterweight structure is provided with an arc groove, which cooperates with the support structure of the base to move. The structure is simple, and its upper end is provided with a counterweight connection device, which is composed of three upper, middle and lower arc connecting blocks and is assembled and connected to the snap ring structure. A circular hole groove is opened in the middle of the three arc connecting blocks and is used together with the ball bodies on the snap ring to form a slidable counterweight structure. The space is compact and the layout is reasonable, which can reduce the vibration or shaking of the compressor to the greatest extent.

[0070] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A compressor vibration damping device, characterized in that: Including: A compressor (5), a liquid receiver (7), a first counterweight device (41) and a second counterweight device (42). In the projection plane on a horizontal plane, the center of the compressor (5) is O, the centroid of the liquid receiver (7) is O1, the centroid of the first counterweight device (41) is O3, the centroid of the second counterweight device (42) is O4, and there is a distance x3 between O3 and O, a distance x4 between O4 and O, x3 = x4, the mass of the first counterweight device (41) is m3, the mass of the second counterweight device (42) is m4, m3 = m4, the angle between the extension line of the connection line of OO3 and O1O is θ, and the angle between the extension line of the connection line of OO4 and O1O is also θ, and 0° < θ < 90°; e is the eccentricity between the center of mass of the compressor and the center of the compressor (5); x1 is the distance from the center of mass of the rotor to the center of mass of the compressor; x2 is the distance from the center of mass of the liquid receiver to the center of mass of the compressor; m1 is the mass of the compressor; m2 is the mass of the liquid receiver; and there is It further includes a base (1) and a support structure (9). The compressor (5) and the support structure (9) are both arranged on the base (1). The liquid receiver (7) is connected to the compressor (5). The first counterweight device (41) and the second counterweight device (42) are both arranged on the support structure (9), and the first counterweight device (41) can slide on the support structure (9), and the second counterweight device (42) can also slide on the support structure (9).

2. The compressor vibration damping device according to claim 1, characterized in that: The support structure (9) includes a first upright column (91), a second upright column (92) and a cross bar (93). The lower end of the first upright column (91) is connected to the base (1) and extends upward at the upper end. The lower end of the second upright column (92) is connected to the base (1) and also extends upward at the upper end. One end of the cross bar (93) is connected to the upper end of the first upright column (91) and the other end extends to be connected to the upper end of the second upright column (92), and the cross bar (93) is an arc-shaped bar structure. A first groove (411) is arranged at the lower end of the first counterweight device (41), and the first counterweight device (41) can be clamped on the cross bar (93) through the first groove (411). A second groove is arranged at the lower end of the second counterweight device (42), and the second counterweight device (42) can be clamped on the cross bar (93) through the second groove, and the first counterweight device (41) can slide along the extension direction of the arc-shaped bar structure, and the second counterweight device (42) can also slide along the extension direction of the arc-shaped bar structure.

3. The compressor vibration damping device according to claim 1, characterized in that: It further includes a first connection structure (10) and a second connection structure (6). One side of the first connection structure (10) is connected to the first counterweight device (41), and a first concave-convex matching structure is arranged on the other side. One side of the second connection structure (6) is connected to the compressor (5), and a second concave-convex matching structure is arranged on the other side. The first concave-convex matching structure and the second concave-convex matching structure are relatively inserted and form a sliding fit, so that the first connection structure (10) can slide relative to the second connection structure (6).

4. The compressor vibration damping device according to claim 3, wherein: The first concave-convex mating structure includes a first convex block (101), a second convex block (102), and a third convex block (103) protruding in the direction of the compressor (5). The first convex block (101), the second convex block (102), and the third convex block (103) are arranged at intervals in the vertical direction from top to bottom. The second concave-convex mating structure includes a fourth convex block (61) and a fifth convex block (62) facing the first counterweight device (41). The fourth convex block (61) and the fifth convex block (62) are arranged at intervals in the vertical direction from top to bottom, and the fourth convex block (61) is inserted into the groove between the first convex block (101) and the second convex block (102), and the fifth convex block (62) is inserted into the groove between the second convex block (102) and the third convex block (103).

5. The compressor vibration damping device according to claim 4, wherein: A rolling structure (11) is further provided at the joint surface between the first concave-convex mating structure and the second concave-convex mating structure. The rolling structure (11) includes a first rolling body (111) provided between the lower end surface of the first convex block (101) and the upper end surface of the fourth convex block (61), a second rolling body (112) provided between the lower end surface of the second convex block (102) and the upper end surface of the fifth convex block (62), and a third rolling body (113) provided between the lower end surface of the fifth convex block (62) and the upper end surface of the third convex block (103).

6. The compressor vibration damping device according to claim 4, wherein: The inner peripheral surfaces of the first convex block (101), the second convex block (102), and the third convex block (103) are all arc-shaped surfaces. The fourth convex block (61) is an arc-shaped strip surrounding the compressor (5), and the fifth convex block (62) is also an arc-shaped strip surrounding the compressor. The outer peripheral surfaces of the fourth convex block (61) and the fifth convex block (62) are both arc-shaped surfaces.

7. The compressor vibration damping device according to claim 3, wherein: The second connection structure (6) is an integral connection clamp, and a clamping groove is further provided on its inner peripheral side. An annular clamp (8) is provided on the outer periphery of the compressor (5), and the clamp (8) is clamped and fixed with the clamping groove.

8. The compressor vibration damping device according to claim 3, wherein: It further includes a third connection structure (12). One side of the third connection structure (12) is connected to the second counterweight device (42), and a third concave-convex mating structure is provided on the other side. The third concave-convex mating structure is inserted into and forms a sliding fit with the second concave-convex mating structure, so that the third connection structure (12) can slide relative to the second connection structure (6).

9. The compressor vibration damping device according to claim 1, wherein: It further includes a foot pad (2). A third groove (1a) is provided on the base (1). The upper end of the foot pad (2) is fixedly connected to the compressor (5), and the lower end is received in the third groove (1a). An elastic structure (13) is further provided between the lower end of the foot pad (2) and the bottom of the third groove (1a).

10. The compressor vibration damping device according to claim 9, wherein: It further includes a plunger (14), a connecting rod (15), a compressed air chamber (16) and a communication channel (17). The compressed air chamber (16) and the communication channel (17) are both provided on the base (1), and the communication channel (17) communicates with the bottom of the third groove (1a). The lower end of the communication channel (17) communicates with the upper end of the compressed air chamber (16). The plunger (14) is arranged in the compressed air chamber (16), at least part of the connecting rod is arranged in the communication channel. The upper end of the connecting rod (15) is connected to the lower end of the foot pad (2), and the lower end of the connecting rod (15) is connected to the lower end of the plunger (14). When the foot pad (2) moves downward, it can drive the connecting rod (15) and the plunger (14) to move downward in sequence to compress the gas in the compressed air chamber (16). When the gas in the compressed air chamber (16) is compressed, it can push the first counterweight device (41) or the second counterweight device (42) to move. In the projection plane of the horizontal plane, the moving direction of the first counterweight device (41) or the second counterweight device (42) is away from the foot pad (2).

11. The compressor vibration damping device according to claim 10, wherein: When including the bracket structure (9): The compressor vibration damping device further includes a connecting pipe (18), a fourth groove (94) and a push rod structure (3). One end of the connecting pipe (18) communicates with the compressed air chamber (16), and the other end communicates with the fourth groove (94). The fourth groove (94) is opened on the bracket structure (9). The push rod structure (3) is arranged in the fourth groove (94). The first counterweight device (41) or the second counterweight device (42) is arranged at the upper end of the fourth groove (94). The gas introduced into the compressed air chamber (16) can be introduced into the fourth groove (94) through the connecting pipe (18) to push the push rod structure (3) to move, and then the first counterweight device (41) or the second counterweight device (42) is pushed to move through the push rod structure (3).

12. The compressor vibration damping device according to claim 11, wherein: The push rod structure (3) includes a first piston (31), a second piston (32) and a push rod (33). The first piston (31), the second piston (32) and the push rod (33) are all arranged in the fourth groove (94). The first piston (31) is connected to one end of the push rod (33), and the second piston (32) is connected to the other end of the push rod (33). The first piston (31) can be pushed by gas to drive the push rod (33) and the second piston (32) to push the first counterweight device (41) or the second counterweight device (42) to move.

13. An air conditioner, characterized in that: It includes the compressor vibration damping device according to any one of claims 1-12.

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