Liquid storage device and compressor

Abstract

The utility model discloses a liquid storage device and a compressor. The liquid storage device comprises a shell and a counterweight assembly, the counterweight assembly comprises an adsorption part and a mass block, and the adsorption part is connected with the mass block; the adsorption piece is provided with a first position adsorbed on the shell and a second position separated from the shell, and when the adsorption piece is located at the first position, the mass block is fixed on the shell. The problem that the liquid storage device cannot be changed once being customized, and when the liquid storage device generates resonance to cause noise, the modal frequency of the liquid storage device cannot be changed, so that the vibration noise of the liquid storage device is large is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration, in particular to a liquid storage device and a compressor. BACKGROUND

[0002] At present, the upper part of the liquid storage device and the compressor are connected through a support and a clamp, and the lower part of the liquid storage device and the compressor are connected through a suction pipe. This connection mode causes the overall connection stiffness of the liquid storage device to be relatively small, resulting in weak resistance to vibration of the liquid storage device during operation. The liquid storage device has multiple modes, and under the trend of lightweight and high-speed development of the compressor, the modes of the liquid storage device are more likely to be excited, which can further increase the vibration frequency of the liquid storage device.

[0003] In the prior art, in order to solve the vibration noise problem of the liquid storage device, a scheme of increasing the wall thickness of the liquid storage device and connecting a counterweight to the outer wall of the liquid storage device is used to slow down the vibration of the liquid storage device. However, once the liquid storage device is customized, the counterweight structure cannot be changed, and the counterweight mode of the liquid storage device cannot be adjusted. When the modal frequency of the liquid storage device changes, the vibration noise cannot be reduced. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a liquid storage device and a compressor to solve the problem that the liquid storage device in the prior art mentioned in the background technology cannot be changed after customization. When the liquid storage device resonates and causes noise, the modal frequency of the liquid storage device cannot be changed, resulting in a problem of large vibration noise of the liquid storage device.

[0005] According to one aspect of the present application, a liquid storage device is provided, comprising:

[0006] a shell;

[0007] a counterweight assembly, the counterweight assembly comprising a suction accessory and a mass block, the suction accessory being connected with the mass block;

[0008] the suction accessory has a first position of being adsorbed to the shell and a second position of being separated from the shell, and the suction accessory fixes the mass block to the shell when being located at the first position.

[0009] Further, the shell is a ferromagnetic shell structure, the suction accessory comprises a magnet, and the magnet is arranged on a side of the mass block close to the shell and can be adsorbed to the shell.

[0010] Further, the mass block is a ferromagnetic block structure, and the magnet is adsorbed to a side of the mass block close to the shell.

[0011] Further, a connecting structure is arranged between the suction accessory and the mass block, and the mass block is fixed to the suction accessory through the connecting structure.

[0012] Further, the shell has a circular cross section, and the magnet is attached to the outer wall surface of the shell;

[0013] Further, the projection of the magnet has a rectangular shape along the radial direction of the shell and an arc-shaped strip structure along the axial direction of the shell.

[0014] Further, the projection of the mass block has a rectangular shape along the radial direction of the shell and an arc-shaped strip structure along the axial direction of the shell.

[0015] Further, along the height direction of the shell, the height of the magnet is H1, the half of the inner diameter of the magnet is r1, the half of the outer diameter of the magnet is R1, the central angle of the magnet is a1, the cross-sectional area of the magnet along the radial direction of the shell is S1, and the volume of the magnet is V1, S1=(R1 2 -r1 2 )*π*(a1 / 360), and V1=S1*H1, wherein r1 satisfies the following relationship: 64mm≤r1≤80mm.

[0016] Further, a1 satisfies the following relationship: 25°≤a1≤85°.

[0017] Further, the projection of the magnet is located within the projection of the mass block along the radial direction of the shell, and the center point of the mass block coincides with the center point of the suction accessory.

[0018] Further, along the axial direction of the shell, the height of the mass block is H2, and H2 and H1 satisfy the following relationship: 0.7≤H1 / H2≤0.9.

[0019] Further, the half of the inner diameter of the mass block is r2, the half of the outer diameter of the mass block is R2, the central angle of the mass block is a2, the cross-sectional area of the mass block along the radial direction of the shell is S2, and the volume of the mass block is V2, S2=(R2 2 -r2 2 )*π*(a2 / 360), and V2=S2*H2, wherein r2≥R1, and a2 satisfies the following relationship: 20°≤a2≤90°.

[0020] Further, the counterweight assembly includes a plurality of counterweight assemblies, and the plurality of counterweight assemblies are arranged on the outer wall surface of the shell in a spaced manner to form a ring-shaped counterweight structure.

[0021] The annular weight structures are arranged along the axial direction of the shell.

[0022] Further, the central angle of the gap between two adjacent mass blocks along the circumferential direction of the shell is a3, and the a3 satisfies the following relationship: a3≥5°.

[0023] Further, the height of the shell along the height direction of the shell is H3, and the H3 satisfies the following relationship: 150mm≤H3≤300mm; the maximum outer diameter of the shell along the radial direction of the shell is R3, and the R3 satisfies the following relationship: 50mm≤R3≤90mm.

[0024] Further, the number of the weight assemblies is k, k is a positive integer, the mass of the magnet is m1, the mass of the mass block is m2, the liquid storage device further comprises a liquid reservoir, the liquid reservoir comprises the shell, the mass of the liquid reservoir is m3, m1, m2 and k satisfy the following relationship: k(m1+m2) / m3≤0.6, and m1+m2≥50g.

[0025] In another aspect, the application further provides a compressor comprising the liquid storage device.

[0026] In the present application, the weight of the liquid storage device is increased by arranging the counterweight assembly on the shell, the rotational inertia of the liquid storage device is increased, and the anti-vibration capability of the liquid storage device is enhanced, thereby effectively reducing the vibration noise of the liquid storage device. The suction accessory can be switched between the first position and the second position, thereby enabling the mass block to be able to be adsorbed on the shell by the suction accessory to counterweight the shell, when the mass block needs to be removed, the suction accessory is separated from the shell, when the position of the mass block needs to be adjusted, the mass block is adsorbed on the corresponding position of the shell by the suction accessory, thereby flexibly adjusting the number and position of the mass block on the shell. That is, the number of configuration assemblies can be flexibly adjusted according to the use demand, and the position of the counterweight assembly also has adjustability. When the modal frequency of the liquid storage device changes, by adjusting the number of counterweight assemblies and / or the position of each counterweight assembly relative to the shell, the modal frequency of each order of the liquid storage device can be moved for targeted processing, thereby achieving the purpose of reducing the vibration noise of the liquid storage device. At the same time, by adjusting the position of the counterweight assembly relative to the shell to adjust the mass distribution of the liquid storage device, the centrifugal effect of the liquid storage device due to the rotation radius is smaller, thereby effectively reducing the vibration noise of the liquid storage device. The counterweight assembly of the present application has high flexibility, and can flexibly adjust the position of the mass block or increase or decrease the mass block according to the change of the modal frequency of the liquid storage device, can adjust the counterweight mode for targeted, and better adapt to the vibration under different modalities, thereby more effectively reducing the vibration noise problem caused by the modal change of the liquid storage device. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 It is a front view of the liquid storage device disclosed in the present application;

[0029] Figure 2 It is a sectional view of the liquid storage device disclosed in the present application;

[0030] Figure 3 It is a front view of the counterweight assembly disclosed in the present application;

[0031] Figure 4 It is a top view of the configuration assembly disclosed in the present application;

[0032] Figure 5 It is a top view of the annular counterweight structure disclosed in the present application;

[0033] Figure 6 It is a sectional view of the liquid storage device disclosed in the present application.

[0034] Among them, the above drawings include the following reference signs:

[0035] 10, housing; 20, weight assembly; 21, suction member; 22, mass; 30, annular weight structure. DETAILED DESCRIPTION

[0036] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0037] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof.

[0038] The relative arrangement of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless otherwise specifically stated. It should be understood that the dimensions of the various parts shown in the drawings are not drawn to scale for the purpose of convenience in description. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description where appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0039] As shown in FIG. 1, Figures 1 to 6 The present application provides a liquid storage device. The liquid storage device includes a housing 10 and a weight assembly 20. The weight assembly 20 includes a suction member 21 and a mass 22. The suction member 21 is connected to the mass 22. The suction member 21 has a first position in which the suction member 21 is attached to the housing 10 and a second position in which the suction member 21 is detached from the housing 10, and the mass 22 is fixed to the housing 10 when the suction member 21 is in the first position.

[0040] In the embodiment, the weight of the liquid storage device is increased by arranging the counterweight assembly 20 on the shell 10, the rotational inertia of the liquid storage device is increased, and the anti-vibration capability of the liquid storage device is enhanced, thereby effectively reducing the vibration noise of the liquid storage device. The suction accessory 21 can be switched between the first position and the second position, thereby enabling the mass block 22 to be adsorbed on the shell 10 by the suction accessory 21 to counterweight the shell 10. When the mass block 22 needs to be removed, the suction accessory 21 is separated from the shell 10. When the position of the mass block 22 needs to be adjusted, the mass block 22 is adsorbed on the corresponding position of the shell 10 by the suction accessory 21, thereby flexibly adjusting the number and position of the mass block 22 on the shell 10. That is, the number of the counterweight assembly can be flexibly adjusted according to the use requirement, and the position of the counterweight assembly is also adjustable. When the modal frequency of the liquid storage device changes, the number of the counterweight assembly and / or the position of each counterweight assembly relative to the shell 10 can be adjusted to perform targeted frequency shift processing on each modal of the liquid storage device, thereby achieving the purpose of reducing the vibration noise of the liquid storage device. At the same time, the mass distribution of the liquid storage device is adjusted by adjusting the position of the counterweight assembly 20 relative to the shell 10, so that the centrifugal effect of the liquid storage device due to the rotation radius is smaller, thereby effectively reducing the vibration noise of the liquid storage device. The counterweight assembly 20 of the present application has high flexibility, and can flexibly adjust the position of the mass block 22 or increase or decrease the mass block 22 according to the change of the modal frequency of the liquid storage device, thereby being capable of adjusting the counterweight mode in a targeted manner and better adapting to the vibration under different modes, so as to more effectively reduce the vibration noise problem caused by the change of the modal of the liquid storage device. In addition, after the vibration noise of the liquid storage device is reduced, the vibration of the air conditioning pipeline connected with the liquid storage device is also correspondingly reduced, thereby improving the stability and reliability of the liquid storage device and the air conditioning pipeline.

[0041] Further, the shell 10 is a ferromagnetic shell structure. The suction accessory 21 includes a magnet. The magnet is arranged on the side of the mass block 22 close to the shell 10 and can be adsorbed on the shell 10. Through the adsorption effect of the magnet, the magnet can be adsorbed and installed on the shell 10. When the counterweight assembly 20 is installed, the operator only needs to approach the mass block 22 with the magnet to the shell 10, and the magnet can be automatically adsorbed, without the need for complicated installation operation by means of additional tools, thereby greatly saving the installation time and labor cost and improving the assembly efficiency. When the position of the counterweight assembly 20 is adjusted, the operator applies a certain force to the magnet, so that the magnet is separated from the shell 10, and then the mass block 22 with the magnet is approached to the predetermined position to be installed, so that the magnet is adsorbed on the predetermined position. The position adjustment operation of the counterweight assembly 20 is simple, and the position of the counterweight assembly 20 can be quickly and conveniently adjusted to adjust the modal frequency of the liquid storage device, so that the vibration noise of the liquid storage device is reduced, and the flexibility of the counterweight adjustment mode of the liquid storage device is enhanced.

[0042] In addition, the magnet can be directly adsorbed on the outer wall surface of the shell 10. The counterweight assembly 20 provided by the embodiment can be directly applied to the existing shell 10 of the liquid storage device, without the need to change the structure of the existing liquid storage device. The embodiment can effectively reduce the vibration noise of the liquid storage device caused by the change of modal frequency without increasing the manufacturing difficulty of the liquid storage device, greatly reducing the production cost of the liquid storage device. The magnet also has the advantages of low cost and easy replacement, which can reduce the maintenance cost of the liquid storage device.

[0043] Alternatively, the adsorption member 21 can also be provided as a rubber suction cup. The rubber suction cup is adsorbed on the shell 10 through atmospheric pressure, and the mass element is fixed on the rubber suction cup.

[0044] Among them, the magnet is a permanent magnet, and the magnet can be a neodymium iron boron magnet, a samarium cobalt magnet, a samarium iron nitrogen magnet, etc. The embodiment is not limited. The neodymium iron boron magnet has a very strong magnetic energy product, and a small volume of neodymium iron boron magnet can generate a strong magnetic field. The neodymium iron boron magnet can be stably and firmly adsorbed on the shell 10, ensuring that the mass block 22 has high stability.

[0045] The samarium cobalt magnet has good high-temperature resistance and chemical stability. The samarium cobalt magnet can prevent the counterweight assembly 20 from being damaged, which helps to prolong the service life of the counterweight assembly 20.

[0046] The samarium iron nitrogen magnet also has high magnetism, and a small volume of samarium iron nitrogen magnet can generate a strong magnetic field, ensuring that the counterweight assembly 20 can be stably adsorbed on the shell 10.

[0047] Further, the mass block 22 is a ferromagnetic block structure. The magnet is adsorbed on the side of the mass block 22 close to the shell 10. The mass block 22 can be connected to the magnet through the magnetic attraction of the magnet. This arrangement is more convenient for the installation of the mass block 22 and can effectively improve the installation efficiency of the counterweight assembly 20.

[0048] Among them, the mass block 22 and the shell 10 include one or more of cast iron, carbon steel, nickel, and cobalt.

[0049] Further, a connecting structure is provided between the adsorption member 21 and the mass block 22. The mass block 22 is fixed to the adsorption member 21 through the connecting structure. The connecting structure fixedly connects the mass block 22 to the adsorption member 21, ensuring that the mass block 22 can move with the adsorption member 21, and the mass block 22 and the adsorption member 21 can move to a predetermined position. Specifically, the connecting structure includes glue, buckles, screws, etc. The embodiment is not limited.

[0050] Further, the shell 10 is circular in cross section. The magnet is adsorbed to the outer wall surface of the shell 10. Wherein, along the radial direction of the shell 10, the projected outer contour of the magnet is rectangular. Along the axial direction of the shell 10, the projected outer contour of the magnet is arc-shaped strip structure. The inner wall surface of the magnet close to the shell 10 can be matched with the outer wall surface of the shell 10, and the magnet can be better adsorbed on the outer wall surface of the shell 10. Such a setting can increase the contact area between the magnet and the outer wall surface of the shell 10, and ensure that the magnet can be more stably adsorbed on the shell 10 and not displaced with the vibration of the liquid storage device.

[0051] Further, along the radial direction of the shell 10, the projected outer contour of the mass block 22 is rectangular. Along the axial direction of the shell 10, the projected outer contour of the mass block 22 is arc-shaped strip structure. The inner wall surface of the mass block 22 close to the magnet is matched with the outer wall surface of the magnet, and the mass block 22 can be better adsorbed on the outer wall surface of the magnet. Such a setting can increase the contact area between the magnet and the mass block 22, and ensure that the mass block 22 can be stably adsorbed on the magnet. At the same time, such a setting also facilitates the standardized production of the mass block 22 and the magnet, and the mass block 22 can be flexibly connected to the magnet, facilitating the production and installation of the counterweight assembly 20.

[0052] Further, along the height direction of the shell 10, the height of the magnet is H1, half of the inner diameter of the magnet is r1, half of the outer diameter of the magnet is R1, the central angle of the magnet is a1, along the radial direction of the shell 10, the cross-sectional area of the magnet is S1, and the volume of the magnet is V1. The cross-sectional area S1 of the magnet is (R12-r12)*π*(a1 / 360), and the volume V1 of the magnet is S1*H1. Wherein, r1 satisfies the following relationship: 64mm≤r1≤80mm. r1 can be set to one of 64mm, 66mm, 68mm, 70mm, 72mm, 74mm, 76mm, 78mm, 80mm, etc. The magnet has a suitable thickness and volume, ensuring that the magnet has sufficient magnetic attraction and can be stably adsorbed and fixed on the outer wall surface of the shell 10, ensuring that the magnet and the mass block 22 have sufficient stability. By flexibly adjusting the value of r1, the cross-sectional area and volume of the magnet can be adjusted, and the magnet with the required volume can be accurately adjusted, providing a calculation basis for accurately adjusting the mass and volume of the magnet. The operator can adjust the value of r1 according to the actual needs to optimize the counterweight effect and better cope with the vibration noise of the liquid storage device due to changes in operating state, modal frequency, etc. If r1<64mm, the mass and volume of the magnet are too small, which will result in a small adsorption effect of the magnet, and the magnet cannot be stably adsorbed on the outer wall surface of the shell 10, nor can it stably adsorb the mass block 22 with the required mass. When the vibration amplitude of the liquid storage device is large, the magnet and the mass block 22 cannot provide enough weight to resist vibration, and cannot achieve good noise reduction effect. If r1>80mm, the mass and volume of the magnet are too large, which cannot finely configure the mass of the required counterweight assembly 20, cannot accurately adjust the mass of the counterweight assembly 20 and the frequency of the liquid storage device, and cannot accurately adjust the modal frequency of the liquid storage device to reduce the vibration noise of the liquid storage device. The mass and volume of the magnet are too large, which is also not convenient for the operator to move and install the magnet. Wherein, the central angle of the magnet refers to the angle between the extension lines of the opposite two ends of the magnet along the circumferential direction of the shell 10.

[0053] Further, a1 satisfies the following relationship: 25°≤a1≤85°. a1 can be set to one of 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, etc. Such setting can accurately adjust the weight distribution of the magnets in the circumferential direction of the shell 10. When there is slight vibration imbalance in a small area of the shell 10, the weight in the area can be accurately adjusted by adding or removing one or more magnets to reduce vibration noise. At the same time, such setting can also ensure that the magnets have sufficient volume and magnetism, ensuring that the magnets and the mass block 22 have good stability and ensuring that the magnets and the mass block 22 can be stably adsorbed on the shell 10 without loosening and displacement. If a1<25°, the volume of the magnets is too small, and the coverage range of the magnets in the circumferential direction of the shell 10 is too small, which can result in small adsorption of the magnets, and the magnets are prone to loosening and disengaging from the shell 10. If a1>85°, the coverage range of the magnets in the circumferential direction of the shell 10 is too large, which cannot finely configure the mass of the required weight assembly 20, cannot accurately adjust the mass of the weight assembly 20 and the frequency of the liquid storage device, and cannot accurately reduce the vibration noise of the liquid storage device according to the modal frequency change of the liquid storage device.

[0054] Further, in the radial direction of the shell 10, the projection outer contour of the magnets is located within the projection outer contour of the mass block 22, and the center point of the mass block 22 coincides with the center point of the adsorption member 21. During the operation of the liquid storage device, such setting can ensure that the force between the mass block 22 and the magnets is more uniform, the mass block 22 will not generate additional torque due to the center of gravity offset, the adsorption relationship between the mass block 22 and the magnets is more stable, thereby ensuring that the weight assembly 20 can continuously and stably play a role in balancing the vibration of the liquid storage device. Such setting can also make the mass block 22 fully cover the magnets in the radial direction. Without increasing the radial space occupation of the shell 10, the spatial relationship between the magnets and the mass block 22 is maximally utilized, so that the mass block 22 can be closely connected with the magnets while better fitting the outer wall of the shell 10. Such spatial layout can help to reasonably arrange the weight assembly 20 in the limited surface space of the shell 10, improve the space utilization, and make the structure of the entire liquid storage device more compact. The mass block 22 can also protect the magnets from pollution and damage, etc. Such setting can also increase the coverage range of the mass block 22 and increase the weight of the mass block 22.

[0055] The height of the mass 22 along the axial direction of the shell 10 is H2. H2 and H1 satisfy the following relationship: 0.7≤H1 / H2≤0.9. The ratio of H1 to H2 can be set to one of 0.7, 0.75, 0.8, 0.85, 0.9, etc. This setting ensures that the mass 22 can effectively cover the magnet in the height direction of the shell 10. Within this range, the magnet has sufficient adsorption to adsorb the mass 22 with appropriate weight. If the ratio of H1 to H2 is less than 0.7, the volume of the magnet is too small, which can cause poor adsorption of the magnet, and the mass 22 is prone to deviation, shaking, etc., which is not conducive to accurately adjusting the vibration noise of the liquid storage device after the modal frequency of the liquid storage device changes. If the ratio of H1 to H2 is greater than 0.9, the volume of the mass 22 is too small, which can also cause the mass 22 to have too small a mass, and the mass 22 cannot achieve the effect of balancing the vibration frequency of the liquid storage device, which is not conducive to reducing the noise of the liquid storage device.

[0056] Further, half of the inner diameter of the mass 22 is r2, half of the outer diameter of the mass 22 is R2, the central angle of the mass 22 is a2, the cross-sectional area of the mass 22 along the radial direction of the shell 10 is S2, the volume of the mass 22 is V2, the cross-sectional area S2 of the mass 22 = (R2 2 -r2 2 )*π*(a2 / 360), and the volume V2 of the mass 22 = S2*H2. Wherein, r2≥R1, and a2 satisfies the following relationship: 20°≤a2≤90°. The mass 22 has an appropriate thickness and volume, which ensures that the mass 22 has sufficient mass to enhance the anti-vibration capability of the liquid storage device. By flexibly adjusting the value of r2, the cross-sectional area and volume of the mass 22 can be adjusted, and the mass 22 with the required volume can be accurately adjusted, providing a calculation basis for accurately adjusting the mass and volume of the mass 22. The operator can adjust the value of r2 according to actual needs to optimize the counterweight effect and better cope with the vibration noise of the liquid storage device due to changes in operating state, modal frequency, etc. r2≥R1, which allows the mass 22 to completely wrap the magnet, and the mass 22 can provide effective physical protection for the magnet.

[0057] a2 can be set to one of 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, etc. This design limits the coverage of the mass block 22 in the circumferential direction, but ensures that the mass block 22 has sufficient flexibility in weight distribution. In combination with the central angle range of the magnet, when the central angle of the mass block 22 and the magnet is reasonably set, stable mass distribution in the circumferential direction can be achieved. For example, when dealing with vibrations in the circumferential direction, the mass block 22 and the magnet can cooperate with each other to effectively disperse and absorb vibration energy through reasonable mass distribution, avoiding the problem of excessive local vibration caused by uneven mass distribution, and enhancing the stability of the liquid storage device. If a2 < 20°, the area covered by the mass block 22 in the circumferential direction of the shell 10 is too small. This makes it extremely limited when fine-tuning the local weight in the circumferential direction of the liquid storage device. For example, when the liquid storage device has a slight vibration imbalance in a small angle range, it is difficult to accurately correct the vibration problem by adjusting only the position or parameters of the mass block 22 due to the small coverage of the mass block 22, limiting the ability to fine-tune the local weight in the circumferential direction. If a2 > 90°, the mass block 22 occupies a too large range in the circumferential direction of the shell 10. This can cause the mass distribution of the mass block 22 in the circumferential direction to be too concentrated in a local large area, making the circumferential weight uneven. During the operation of the liquid storage device, this uneven circumferential weight can cause the device to be unbalanced in the circumferential direction, easily producing large eccentric vibrations, especially at high operating speeds or under external interference, which can make the vibrations more obvious, affecting the smooth operation of the liquid storage device and making it inconvenient for the operator to move the position of the mass block 22. The central angle of the mass block 22 refers to the angle between the extensions of the opposite ends of the magnet along the circumferential direction of the shell 10.

[0058] Further, the counterweight assembly 20 comprises a plurality of counterweight assemblies 20 arranged on the outer wall surface of the shell 10 in a circumferential direction of the shell 10 to form a ring-shaped counterweight structure 30. The ring-shaped counterweight structure 30 comprises a plurality of ring-shaped counterweight structures 30 arranged in an axial direction of the shell 10. When the liquid storage device is subjected to circumferential vibration, the ring-shaped counterweight structure 30 can uniformly disperse the vibration energy in each circumferential direction, avoiding the imbalance of circumferential vibration caused by the concentration of the counterweight in a certain place. In this way, the stability of the liquid storage device in the circumferential direction is effectively improved, and the influence of circumferential vibration on the device is reduced. The ring-shaped counterweight structures 30 at different axial positions can cooperate with each other to resist axial vibration. When the axial vibration generated by the compressor is transmitted to the liquid storage device, the plurality of ring-shaped counterweight structures 30 can absorb and disperse the vibration energy in layers, effectively reducing the amplitude of the axial vibration and enhancing the stability of the liquid storage device in the axial direction. Due to the plurality of counterweight assemblies 20 and ring-shaped counterweight structures 30, when it is necessary to adjust the counterweight of the liquid storage device, the number and counterweight mass of the ring-shaped counterweight structures 30 can be changed to quickly balance the vibration caused by the modal change of the liquid storage device. Alternatively, the counterweight ratio between different ring-shaped counterweight structures 30 can be adjusted according to different working conditions of the liquid storage device to effectively control vibration and noise.

[0059] Further, the angle of the central angle of the gap between the two adjacent mass blocks 22 in the circumferential direction of the shell 10 is a3, and the angle a3 is as shown in Figure 5As shown, the angle a3 is the included angle between the sides of the two adjacent mass blocks 22 on the side close to each other, and a3 satisfies the following relationship: a3≥5°. a3 can be set to one of 5°, 6°, 7°, 8°, 9°, 10°, 20°, etc. A gap is provided between the two adjacent mass blocks 22 to facilitate the installation and movement of the counterweight assembly 20 by the operator. Such arrangement can also effectively prevent the mass blocks 22 from colliding with each other due to vibration and other reasons, and ensure the relative uniformity of the mass distribution of the mass blocks 22. In addition, by adjusting the size of a3, the number of counterweight assemblies 20 in each annular counterweight structure 30 can be accurately adjusted, which facilitates more accurate adjustment of the counterweight of the liquid storage device. The counterweight assembly 20 can better adapt to the vibration conditions under different modes, thereby more effectively reducing the vibration noise problem caused by the change of the mode of the liquid storage device. Among them, a3 is the angle of the included angle of the extension lines of the two adjacent mass blocks 22 of the shell 10 on the side close to each other in the circumferential direction. If a3<5°, the gap between the adjacent counterweights is too small, which is not convenient for the operator to install, move and other operations. If the gap between the adjacent mass blocks 22 is too small, the mass blocks 22 are prone to collide under the action of vibration. Such collision not only produces additional noise, affecting the normal operating environment of the liquid storage device, but also may cause the mass block 22 surface to wear, deform or even break. Once the mass block 22 is damaged, the mass distribution will change, affecting the performance of the counterweight assembly 20, causing the counterweight to be unbalanced, and making the vibration problem of the liquid storage device worse.

[0060] Further, along the height direction of the shell 10, the height of the shell 10 is H3, which satisfies the following relationship: 150mm≤H3≤300mm. The height H3 of the shell 10 can be set to one of 150mm, 170mm, 190mm, 200mm, 220mm, 240mm, 250mm, 270mm, 290mm, 300mm, etc. The height range of the shell 10 can well adapt to the layout of the multi-layer annular counterweight structure 30. The appropriate height of the shell 10 can ensure that the counterweight assembly 20 is uniformly distributed in the axial direction, so that the entire liquid storage device can effectively play a role in the running process, enhance the structural stability, and resist the vibration in the axial and circumferential directions. The appropriate height of the shell 10 can also enhance the anti-vibration ability of the liquid storage device, enhance the structural strength of the liquid storage device, and effectively reduce the vibration noise generated by the liquid storage device. If H3<150mm, the height of the shell 10 is too small, and the too low height of the shell 10 can not provide enough axial space to reasonably arrange the counterweight assembly 20, so that the annular counterweight structure 30 cannot be fully counterbalanced in the axial direction. The too short shell 10 cannot fully utilize the internal space to store enough liquid, which will also affect the fluid conveying efficiency of the refrigeration system. If H3>300mm, the too high shell 10 makes the counterweight assembly 20 too dispersed in the axial direction. This can cause the collaborative working effect between the layers of the annular counterweight structure 30 to be poor, and when resisting vibration, the vibration energy cannot be effectively transmitted and dispersed in the axial direction. With the increase of the height of the shell 10, the center of gravity of the liquid storage device will also rise, and the liquid storage device is more likely to tip over when subjected to lateral force.

[0061] Further, along the radial direction of the shell 10, the maximum outer diameter of the shell 10 is R3. R3 satisfies the following relationship: 50mm≤R3≤90mm. R3 can be set to one of 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, etc. Within this range, the shell 10 can be well adapted to the counterweight assembly 20, ensuring the balance of the entire liquid storage device. The magnets and mass blocks 22 are arranged around the outer wall of the shell 10, and a suitable outer diameter range of the shell 10 can distribute the counterweights at a reasonable circumferential radius, effectively balancing the center of gravity of the liquid storage device in the circumferential direction, avoiding imbalance of the counterweights due to the outer diameter of the shell 10 being too large or too small, enhancing the stability of the liquid storage device during operation, reducing vibration in the circumferential direction, and being conducive to reducing the vibration noise of the liquid storage device. If R3<50mm, the radial size of the shell 10 is too small, which is not convenient for the installation and movement of the counterweight assembly 20, and it is also not possible to install a sufficient number and appropriate size of magnets and mass blocks to balance the liquid storage device. When the modal of the liquid storage device changes, the number of counterweight assemblies 20 cannot effectively reduce the noise of the liquid storage device. If R3>90mm, the radial size of the shell 10 is too large, and more counterweight assemblies 20 need to be installed on the shell 10 to balance the vibration of the liquid storage device. Moreover, the radial size of the shell 10 is too large, which can cause the vibration phenomenon of the liquid storage device due to the turning radius to be more intense, which is not conducive to reducing the vibration noise of the liquid storage device.

[0062] Further, the number of counterweight assemblies 20 is k, k is a positive integer, the mass of the magnets is m1, the mass of the mass blocks 22 is m2, and the liquid storage device further includes a liquid reservoir including the shell 10, and the mass of the liquid reservoir is m3. m1, m2, and k satisfy the following relationship: k(m1+m2) / m3≤0.6, and m1+m2≥50g. Controlling the weight of all counterweight assemblies 20 installed on the shell 10 within a reasonable range, the counterweight assemblies 20 can effectively enhance the structural strength of the liquid reservoir and provide the vibration resistance of the liquid reservoir. By adjusting the position of the counterweight assembly 20, the vibration noise of the liquid storage device caused by the change of the modal frequency can be effectively reduced. By limiting the mass ratio of the counterweight assembly 20 to the liquid reservoir, the stability of the liquid storage device is ensured, and problems such as the decrease of the operating efficiency of the liquid storage device caused by the excessive mass of the counterweight assembly 20 are effectively prevented. m1+m2≥50g ensures that each counterweight assembly 20 has a certain mass. For some liquid storage devices with large mass or intense vibration, smaller counterweight mass may not be able to effectively suppress vibration, and the setting of this lower limit of mass can ensure that each counterweight assembly 20 can play a certain role and enhance the effectiveness of the liquid storage device.

[0063] Specifically, along the height direction of the shell, the shell comprises an upper cup body, a middle cup body and a lower cup body connected in sequence. The annular weight structure is arranged on the middle cup body. The liquid storage device comprises a three-section liquid storage device and a spinning liquid storage device. The three-section liquid storage device assembly comprises an air suction pipe, an air suction straight pipe and an air suction elbow pipe, the air suction pipe is arranged in the upper cup body, the air suction straight pipe is connected with the air suction elbow pipe, and the air suction elbow pipe is connected with the lower cup body. The spinning liquid storage device assembly comprises a cup body, an air suction straight pipe, an air suction pipe and an air suction elbow pipe. The air suction pipe is connected with the upper cup body, the air suction straight pipe is connected with the air suction elbow pipe, and the air suction elbow pipe is connected with the lower cup body.

[0064] In another aspect, the embodiment of the present application also provides a compressor comprising the above-mentioned liquid storage device, so that the compressor comprises all the technical effects of the above-mentioned liquid storage device. Since the technical effects of the liquid storage device have been described in detail in the foregoing, they will not be described here again.

[0065] The mass 22 of the present application is fixed to the shell 10 by a magnet, and is added as needed according to the required weight and position of the liquid storage device without changing the original scheme of the liquid storage device. On the one hand, the mass 22 can increase the mass and thus the rotational inertia, thereby reducing the vibration noise of the liquid storage device. On the other hand, the mass 22 can be moved to a certain order modal frequency, thereby achieving the purpose of reducing vibration noise. Compared with the existing scheme, the scheme has higher flexibility, does not need to change the original scheme, and has better adaptability.

[0066] For the convenience of description, spatial relative terms such as "above", "upper", "top", "upper", etc. can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the example term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0067] In addition, it should be noted that the use of "first", "second", and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above terms have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0068] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A liquid storage device, characterized by, The application relates to a shell (10), a counterweight assembly (20) comprising a suction accessory (21) and a mass block (22), the suction accessory (21) being connected with the mass block (22), the suction accessory (21) having a first position of being adsorbed to the shell (10) and a second position of being separated from the shell (10), the mass block (22) being fixed to the shell (10) when the suction accessory (21) is in the first position. The shell (10) is a ferromagnetic shell structure, the suction accessory (21) comprises a magnet, and the magnet is arranged on one side of the mass block (22) close to the shell (10) and can be adsorbed to the shell (10). The mass block (22) is a ferromagnetic block structure, and the magnet is adsorbed to one side of the mass block (22) close to the shell (10). A connecting structure is arranged between the suction accessory (21) and the mass block (22), and the mass block (22) is fixed to the suction accessory (21) through the connecting structure.

2. The liquid storage device of claim 1, wherein, The cross section of the shell (10) is circular, and the magnet is adsorbed to the outer wall surface of the shell (10).

3. The liquid storage device of claim 2, wherein, The projection outer contour of the magnet is rectangular along the radial direction of the shell (10), and the projection outer contour of the magnet is an arc-shaped strip structure along the axial direction of the shell (10); and / or the projection outer contour of the mass block (22) is rectangular along the radial direction of the shell (10), and the projection outer contour of the mass block (22) is an arc-shaped strip structure along the axial direction of the shell (10).

4. The liquid storage device of claim 2, wherein, 64mm<=r1<=80mm.

5. The liquid storage device of claim 2, wherein, The a1 satisfies the following relationship: The projection outer contour of the magnet is located in the projection outer contour of the mass block (22) along the radial direction of the shell (10), the center point of the mass block (22) coincides with the center point of the suction accessory (21); and / or the height of the mass block (22) is H2 along the axial direction of the shell (10), and H2 and H1 satisfy the following relationship: 0.7<=H1 / H2<=0.

9.

6. The liquid storage device of claim 5, wherein, Along the height direction of the shell (10), the height of the magnet is H1, the half of the inner diameter of the magnet is r1, the half of the outer diameter of the magnet is R1, the angle of the central angle of the magnet is a1, along the radial direction of the shell (10), the cross-sectional area of the magnet is S1, the volume of the magnet is V1, S1=(R1 2 -r1 2 )*π*(a1 / 360), V1=S1*H1, wherein r1 satisfies the following relationship: The counterweight assembly (20) comprises a plurality of, and a plurality of the counterweight assemblies (20) are arranged on the outer wall surface of the shell (10) in a circumferential direction of the shell (10) to enclose a ring-shaped counterweight structure (30).

7. The liquid storage device of claim 6, wherein, The ring-shaped counterweight structure (30) comprises a plurality of, and a plurality of the ring-shaped counterweight structures (30) are arranged in an axial direction of the shell (10); and / or the angle of the central angle of the gap between adjacent two mass blocks (22) is a3 along the circumferential direction of the shell (10), and the a3 satisfies the following relationship: 25°≤a1≤85°。 8. The liquid storage device of claim 5, wherein, The height of the shell (10) is H3 along the height direction of the shell (10), and the H3 satisfies the following relationship: 150mm<=H3<=300mm; and / or the maximum outer diameter of the shell (10) is R3 along the radial direction of the shell (10), and the R3 satisfies the following relationship: 50mm<=R3<=90mm.

9. The liquid storage device of claim 8, wherein, The half of the inner diameter of the mass (22) is r2, the half of the outer diameter of the mass (22) is R2, the angle of the central angle of the mass (22) is a2, the cross-sectional area of the mass (22) is S2 along the radial direction of the shell (10), the volume of the mass (22) is V2, S2 = (R2 2 -r2 2 )*π*(a2 / 360), V2 = S2*H2, wherein r2≥R1, and a2 satisfies the following relationship: 20°≤a2≤90°。 10. The liquid storage device of any one of claims 5 to 9, wherein, ​ ​ ​ a3≥5°。 11. The liquid storage device of any one of claims 5 to 9, wherein, ​ ​ ​ ​ 12. The liquid storage device of any one of claims 2 to 8, wherein, The number of the counterweight assemblies (20) is k, k is a positive integer, the mass of the magnet is m1, the mass of the mass block (22) is m2, the liquid storage device further comprises a liquid reservoir, the liquid reservoir comprises the shell (10), the mass of the liquid reservoir is m3, m1, m2 and k satisfy the following relationship: k(m1+m2) / m3≤0.6, and m1+m2≥50g.

13. A compressor characterized by, The compressor comprises the liquid storage device according to any one of claims 1 to 12.

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