Shell of compressor and compressor

Abstract

The utility model provides a compressor casing and a compressor, the casing comprises an inner casing and an outer casing located on the outer side of the inner casing, a cavity structure is formed between the outer casing and the inner casing, and vibration reduction particles are arranged in the cavity structure. And the vibration reduction particles in the cavity structure collide with the machine shell and / or friction occurs between the vibration reduction particles in the cavity structure, so that vibration energy is converted into kinetic energy of the vibration reduction particles.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and in particular to a compressor casing and a compressor. Background Art

[0002] The compressor casing contains a compression mechanism and a motor. The multi-body vibration generated by the two will not only aggravate the wear of the contact surface, reduce the service life of components, increase power consumption and reduce energy efficiency, but also the noise generated will affect comfort.

[0003] At present, vibration damping pads are mainly used. The gap between rubber pads, sleeves and bolts is matched to achieve circumferential weak constraint. The bolts are in contact with the top of the rubber pads to achieve axial weak constraint, and finally achieve vibration energy attenuation. However, due to the limited gap between the bolts, sleeves and rubber pads, and the small amount of rubber compression, the degree of vibration energy attenuation is limited, and the vibration energy of the compressor in actual operation is still large.

[0004] In addition, the effective vibration isolation frequency of the compressor foot pad is limited by its size and material properties. The vibration isolation frequency point is relatively high, and the vibration isolation effect on low-frequency vibration is insufficient.

[0005] Some existing compressor casings use sound-absorbing materials, but they can only reduce noise but not vibration. Some casings are coated with damping layers, which can reduce vibration. However, the damping materials have poor heat resistance and short lifespan, making it difficult to meet current compressor needs. Utility Model Content

[0006] The main purpose of the utility model is to provide a compressor casing and a compressor, so as to solve the problem of short life of the damping material in the prior art in which the compressor casing is subjected to vibration reduction by applying a damping layer.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a compressor casing is provided, the casing comprising an inner casing and an outer casing located outside the inner casing, a cavity structure is formed between the outer casing and the inner casing, and vibration-damping particles are arranged in the cavity structure, so that when the vibration of the compressor is transmitted to the casing, the vibration-damping particles in the cavity structure collide with the casing and / or friction occurs between the vibration-damping particles in the cavity structure, so as to convert the vibration energy into kinetic energy of the vibration-damping particles.

[0008] Furthermore, the casing also includes a first partition plate arranged in the cavity structure, and the cavity structure includes a plurality of cavity parts arranged in sequence along the axial direction of the casing, and two adjacent cavity parts are separated by the first partition plate; vibration-damping particles are arranged in each cavity part.

[0009] Furthermore, the casing also includes multiple division units, and the multiple division units are arranged in one-to-one correspondence with the multiple cavity parts; each division unit includes at least one second partition plate, and the second partition plate of each division unit is arranged in the corresponding cavity part; each cavity part includes a plurality of split cavities arranged in sequence along its circumference, and two adjacent split cavities of each cavity part are separated by a second partition plate; vibration-damping particles are arranged in each split cavity.

[0010] Furthermore, the filling rate of the vibration-damping particles in the split cavity ranges from 50% to 80%.

[0011] Furthermore, the material of the vibration-damping particles includes at least one of iron powder, rubber, and ceramics.

[0012] Furthermore, the material of the inner shell, the material of the outer shell, and the material of the first partition plate are the same; and / or the first partition plate is welded or integrally formed with the inner shell; and / or the first partition plate is welded or integrally formed with the outer shell.

[0013] Furthermore, the material of the inner shell, the material of the outer shell, and the material of the second partition plate are all the same; and / or the second partition plate is welded or integrally formed with the inner shell; and / or the second partition plate is welded or integrally formed with the outer shell.

[0014] Furthermore, the cavity structure is an annular cavity, and the first partition plate is an annular plate.

[0015] Furthermore, the cavity structure is filled with gas.

[0016] According to another aspect of the present invention, a compressor is provided, which includes the above-mentioned casing.

[0017] By applying the technical solution of the utility model, the casing of the compressor includes an inner casing and an outer casing located outside the inner casing, a cavity structure is formed between the outer casing and the inner casing, and vibration-damping particles are arranged in the cavity structure; when the compressor vibrates, and when the vibration of the compressor is transmitted to the casing, under the action of the vibration, the vibration-damping particles in the cavity structure vibrate accordingly, that is, the vibration-damping particles in the cavity structure move, so that the vibration-damping particles in the cavity structure continuously collide with the casing, and / or cause friction between the vibration-damping particles in the cavity structure, thereby converting the vibration energy into kinetic energy of the vibration-damping particles, thereby consuming the vibration energy, thereby achieving the vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1A schematic side view of the structure of a casing of a compressor according to the utility model is shown;

[0020] Figure 2 Shows Figure 1 A longitudinal sectional view of a casing of a compressor in FIG.

[0021] Figure 3 A schematic diagram of the top view of the casing of the compressor according to the utility model is shown;

[0022] Figure 4 A transverse cross-sectional view of a casing of a compressor according to the present invention is shown.

[0023] The above drawings include the following reference numerals:

[0024] 100. Casing; 10. Outer shell; 20. Inner shell; 30. Cavity structure; 31. Cavity part; 311. Split cavity; 40. First partition plate; 50. Second partition plate; 60. Vibration-damping particles; 70. Intake pipe; 71. Intake port; 80. Bracket. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] The utility model provides a compressor casing 100, please refer to Figures 1 to 4The casing 100 includes an inner casing 20 and an outer casing 10 located outside the inner casing 20, a cavity structure 30 is formed between the outer casing 10 and the inner casing 20, and vibration-damping particles 60 are arranged in the cavity structure 30; when the compressor vibrates, and when the vibration of the compressor is transmitted to the casing 100, under the action of the vibration, the vibration-damping particles 60 in the cavity structure 30 vibrate accordingly, that is, the vibration-damping particles 60 in the cavity structure 30 move, so that the vibration-damping particles 60 in the cavity structure 30 continuously hit the casing 100, and / or friction occurs between the vibration-damping particles 60 in the cavity structure 30, and then the vibration energy is converted into the kinetic energy of the vibration-damping particles 60, so as to consume the vibration energy, thereby achieving the effect of vibration reduction. It can be seen that the casing 100 of the compressor of the present application has the function of vibration reduction, and does not need to rely on the application of a damping layer to reduce vibration, which solves the problem of short life of the damping material in the prior art in which the compressor casing is reduced by applying a damping layer to reduce vibration.

[0029] In this embodiment, the cavity structure 30 is filled with gas, that is, there is a gas layer in the cavity structure 30. When sound waves propagate in the gas layer, they will be collided and rubbed by gas molecules, so that the sound wave energy is lost, thereby reducing the noise generated by the operation of the internal parts of the compressor located in the casing 100, achieving the effect of noise reduction, and further solving the problem of excessive vibration noise in the actual operation of the compressor.

[0030] Specifically, the gas in the cavity structure 30 is air. There is a certain amount of air in the cavity structure 30, that is, there is an air layer in the cavity structure 30. When sound waves propagate in the air layer, they will be collided and rubbed by air molecules, causing the sound wave energy to be lost, thereby reducing the noise generated by the operation of the internal parts of the compressor located in the casing 100, thereby achieving the effect of noise reduction.

[0031] In this embodiment, the housing 100 further includes a first partition plate 40 disposed in the cavity structure 30 . The cavity structure 30 includes a plurality of cavity portions 31 sequentially arranged along the axial direction of the housing 100 . Two adjacent cavity portions 31 are separated by the first partition plate 40 .

[0032] Specifically, there is at least one first partition plate 40. When there is one first partition plate 40, the first partition plate 40 divides the cavity structure 30 into two cavity parts 31 sequentially arranged along the axial direction of the housing 100. When there are multiple first partition plates 40, multiple first partition plates 40 are spaced apart in the cavity structure 30 along the axial direction of the housing 100 to divide the cavity structure 30 into multiple cavity parts 31 sequentially arranged along the axial direction of the housing 100.

[0033] Specifically, the cavity structure 30 is an annular cavity, the first partition plate 40 is an annular plate, and the cavity portion 31 is an annular cavity.

[0034] Specifically, an outer peripheral wall of the first partition plate 40 is connected to and in contact with the outer shell 10 , and an inner peripheral wall of the first partition plate 40 is connected to and in contact with the inner shell 20 .

[0035] like Figure 1 and Figure 2 As shown, there are three cavity parts 31 and two first partition plates 40.

[0036] In this embodiment, the casing 100 also includes a plurality of division units, and the plurality of division units are arranged in one-to-one correspondence with the plurality of cavity portions 31; each division unit includes at least one second partition plate 50, and all second partition plates 50 of each division unit are arranged in the corresponding cavity portion 31; each cavity portion 31 includes a plurality of split cavities 311 arranged in sequence along its circumference, and two adjacent split cavities 311 of each cavity portion 31 are separated by a second partition plate 50; and vibration-damping particles 60 are arranged in each split cavity 311.

[0037] Specifically, for each dividing unit and the corresponding cavity portion 31: when the dividing unit includes one second partition plate 50, the second partition plate 50 divides the corresponding cavity portion 31 into two split cavities 311 sequentially arranged along the circumference of the housing 100. When there are multiple second partition plates 50, the multiple second partition plates 50 are arranged in the corresponding cavity portion 31 at intervals along the circumference of the housing 100 to divide the corresponding cavity portion 31 into multiple split cavities 311 sequentially arranged along the circumference of the housing 100.

[0038] Specifically, the second partition plate 50 is disposed along the axial direction of the housing 100 .

[0039] Specifically, along the distribution direction of the inner shell 20 and the outer shell 10 , the second partition plate 50 has a first end and a second end that are relatively arranged; the first end of the second partition plate 50 is fixedly connected to the inner shell 20 , and the second end of the second partition plate 50 is fixedly connected to the outer shell 10 .

[0040] Specifically, along the axial direction of the housing 100 , the height of the second partition plate 50 is equal to the height of the corresponding cavity portion 31 .

[0041] Optionally, in any two adjacent cavity portions 31, the number of second partition plates 50 in the two cavity portions 31 is equal, all the second partition plates 50 in one cavity portion 31 and all the second partition plates 50 in the other cavity portion 31 are arranged one-to-one, and each second partition plate 50 in one cavity portion 31 and the corresponding second partition plate 50 in the other cavity portion 31 are an integrally formed structure, that is, the integrally formed second partition plates 50 are cross-arranged with the first partition plates 40.

[0042] like Figure 3 and Figure 4As shown, there are four split cavities 311 in each cavity portion 31 , and there are four second partition plates 50 in each cavity portion 31 , that is, the cavity structure 30 includes 12 split cavities 311 .

[0043] During specific implementation, the axial direction of the housing 100 is parallel to the vertical direction. When the compressor is in an actual low-frequency operating condition, if the cavity structure 30 is not divided into a plurality of cavity portions 31 arranged in sequence along the axial direction of the casing 100, when the vibration and impact energy are transmitted to the casing 100, only the upper vibration-damping particles 60 can vibrate and participate in the consumption of the vibration energy, while the lower vibration-damping particles 60 are affected by the gravity of the upper vibration-damping particles 60, and the lower vibration-damping particles 60 are squeezed to varying degrees, and the lower vibration-damping particles 60 are in an approximately fixed state, that is, the lower vibration-damping particles 60 are almost motionless, resulting in the lower vibration-damping particles 60 almost not participating in the consumption of the vibration energy; therefore, in order to improve the vibration reduction effect, the cavity structure 30 is divided into a plurality of cavity portions 31 arranged in sequence along the axial direction of the casing 100, that is, a layered design, so that as many vibration-damping particles 60 as possible can be made to vibrate and participate in the consumption of the vibration energy, so as to improve the participation rate of the vibration-damping particles 60, increase the number of collisions between the vibration-damping particles 60 and the casing 100 and the number of frictions between the vibration-damping particles 60, and thereby improve the vibration reduction effect. It can be seen that even under low-frequency operating conditions, the compressor casing 100 of the present application can achieve a good vibration reduction effect; that is, under all operating conditions (including high and low frequency operation processes), the compressor casing 100 of the present application can achieve the attenuation and consumption of vibration energy and noise, so that the vibration and noise are greatly reduced, thereby achieving a better vibration reduction and noise reduction effect.

[0044] Specifically, the number of cavity portions 31 can be adjusted according to actual needs.

[0045] In this embodiment, the filling rate of the vibration-damping particles 60 in the split cavity 311 ranges from 50% to 80%, wherein the filling rate of the vibration-damping particles 60 in the split cavity 311 is the ratio of the total occupied volume of all the vibration-damping particles 60 in the split cavity 311 to the volume of the split cavity 311.

[0046] In this embodiment, the material of the vibration-damping particles 60 includes at least one of iron powder, rubber, and ceramics.

[0047] Specifically, the density of the vibration-damping particles 60 is relatively large, and the density and particle size of the vibration-damping particles 60 can be selected according to actual working conditions and requirements.

[0048] Specifically, based on economic factors, it may also be considered that the material of the vibration-damping particles 60 includes sand and gravel, and the sand and gravel serve as fillers of the vibration-damping particles 60 .

[0049] In this embodiment, the material of the inner shell 20 , the material of the outer shell 10 , the material of the first partition plate 40 , and the material of the second partition plate 50 are all the same.

[0050] In this embodiment, the first partition plate 40 is welded to the inner shell 20, and the first partition plate 40 is welded to the outer shell 10. Alternatively, the first partition plate 40, the inner shell 20 and the outer shell 10 are an integrally formed structure.

[0051] In this embodiment, the second partition plate 50 is welded to the inner shell 20, and the second partition plate 50 is welded to the outer shell 10. Alternatively, the second partition plate 50, the inner shell 20 and the outer shell 10 are an integrally formed structure.

[0052] By providing the first partition plate 40 and the second partition plate 50, the inner shell 20 and the outer shell 10 are connected together, thereby enhancing the overall structural strength and rigidity of the casing 100. Thus, the natural frequency of the casing 100 can be increased, which is beneficial for vibration reduction.

[0053] In this embodiment, the thickness of the inner shell 20 and the outer shell 10 should not be too thin.

[0054] In this embodiment, a preset opening is opened on the housing 100 , one end of the air intake pipe 70 is connected to the preset opening and communicates with the interior of the housing 100 , and the other end of the air intake pipe 70 is an air intake port 71 .

[0055] In this embodiment, a bracket 80 is disposed on the outer wall surface of the housing 100 .

[0056] The utility model also provides a compressor, which includes the above-mentioned casing 100.

[0057] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0058] In the casing 100 of the compressor provided by the present invention, the casing 100 includes an inner casing 20 and an outer casing 10 located outside the inner casing 20, a cavity structure 30 is formed between the outer casing 10 and the inner casing 20, and vibration-damping particles 60 are arranged in the cavity structure 30; when the compressor vibrates, and when the vibration of the compressor is transmitted to the casing 100, under the action of the vibration, the vibration-damping particles 60 in the cavity structure 30 vibrate accordingly, that is, the vibration-damping particles 60 in the cavity structure 30 move, so that the vibration-damping particles 60 in the cavity structure 30 continuously collide with the casing 100, and / or friction occurs between the vibration-damping particles 60 in the cavity structure 30, thereby converting vibration energy into kinetic energy of the vibration-damping particles 60, thereby consuming the vibration energy, thereby achieving a vibration reduction effect.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary 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 spatially relative descriptions used here are interpreted accordingly.

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A compressor casing, characterized in that: The casing comprises an inner casing (20) and an outer casing (10) located outside the inner casing (20); a cavity structure (30) is formed between the outer casing (10) and the inner casing (20); vibration-damping particles are arranged in the cavity structure (30), so that when the vibration of the compressor is transmitted to the casing, the vibration-damping particles in the cavity structure (30) collide with the casing and / or the vibration-damping particles in the cavity structure (30), thereby generating friction, so as to convert vibration energy into kinetic energy of the vibration-damping particles; The housing further comprises a first partition plate (40) arranged in the cavity structure (30); the cavity structure (30) comprises a plurality of cavity parts (31) arranged in sequence along the axial direction of the housing, and two adjacent cavity parts (31) are separated by the first partition plate (40); and vibration-damping particles are arranged in each cavity part (31); The housing further comprises a plurality of partitioning units, and the plurality of partitioning units are arranged in one-to-one correspondence with the plurality of cavity portions (31); each of the partitioning units comprises at least one second partition plate (50), and the second partition plate (50) of each of the partitioning units is arranged in the corresponding cavity portion (31); each of the cavity portions (31) comprises a plurality of split cavities (311) arranged in sequence along its circumference, and two adjacent split cavities (311) of each cavity portion (31) are separated by the second partition plate (50); and vibration-damping particles are arranged in each of the split cavities (311).

2. The compressor casing according to claim 1, characterized in that: The filling rate of the vibration-damping particles in the split cavity (311) ranges from 50% to 80%.

3. The compressor casing according to claim 1 or 2, characterized in that: The material of the vibration-damping particles includes at least one of iron powder, rubber, and ceramics.

4. The compressor casing according to claim 1, characterized in that: The material of the inner shell (20), the material of the outer shell (10), and the material of the first partition plate (40) are all the same; and / or The first partition plate (40) and the inner shell (20) are welded or integrally formed; and / or The first partition plate (40) and the outer shell (10) are welded or integrally formed.

5. The compressor casing according to claim 1, characterized in that: The material of the inner shell (20), the material of the outer shell (10), and the material of the second partition plate (50) are all the same; and / or The second partition plate (50) is welded or integrally formed with the inner shell (20); and / or The second partition plate (50) is welded to or integrally formed with the outer shell (10).

6. The compressor casing according to claim 1, characterized in that: The cavity structure (30) is an annular cavity, and the first partition plate (40) is an annular plate.

7. The compressor casing according to claim 1, characterized in that: The cavity structure (30) is filled with gas.

8. A compressor, characterized in that: A housing comprising any one of claims 1 to 7.

Images