A compressor housing and compressor assembly

Abstract

This invention provides a compressor housing and a compressor assembly. The compressor housing includes: a shell with a receiving cavity inside; a damping sleeve fitted onto the shell, its inner wall welded to the circumferential outer wall of the shell, and an annular cavity within the damping sleeve; a first damping particle disposed within the annular cavity; a damping disc welded to the outer wall of the shell's bottom plate, and having a receiving cavity within it; and a second damping particle disposed within the receiving cavity. By employing this invention, the damping sleeve and its internal first damping particle can suppress some horizontal vibrations of the shell, and the damping disc and its internal second damping particle can suppress some axial vibrations of the shell, thereby achieving suppression of both axial and horizontal vibrations of the compressor housing, thus reducing noise. Furthermore, the welded connection between the damping sleeve and damping disc and the shell ensures the stability of the connection, maintaining vibration reduction and noise reduction effects over a long period.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically to a compressor housing and compressor assembly. Background Technology

[0002] When a compressor is running, the compressor's compression components (rotor, scroll plate) and housing assembly generate strong vibrations and noise, which radiate outwards through the housing, affecting comfort and equipment lifespan. Current technologies typically use external rubber feet, bolted counterweights, or bolted damping blocks to suppress vibration and noise. However, the compressor housing, as the primary vibration radiation zone, experiences both axial runout and horizontal vibration. A single damping structure cannot simultaneously suppress both axial and horizontal vibrations. Furthermore, rubber is prone to aging and cracking over time, affecting vibration reduction. The bolted connections of counterweights and damping blocks to the compressor housing are also prone to loosening and detachment, posing safety risks. Summary of the Invention

[0003] In view of this, the present invention provides a compressor housing and a compressor assembly to solve the above-mentioned technical problems.

[0004] The compressor housing provided by this invention includes: A housing, wherein a receiving cavity is provided within the housing; A damping sleeve is fitted onto the housing, the inner wall of the damping sleeve is welded to the circumferential outer wall of the housing, and an annular cavity is provided inside the damping sleeve. A first damping particle is disposed within the annular cavity; A damping disc is welded to the outer wall of the bottom plate of the housing, and a receiving cavity is provided inside the damping disc; The second damping particle is disposed within the accommodating cavity.

[0005] Optionally, the particle size of the first damping particle is 0.5mm-1mm, and the total weight of the first damping particles in the annular cavity is 1 / 5 of the weight of the shell.

[0006] Optionally, the particle size of the second damping particle is 1.5 mm, and the total weight of the second damping particles in the accommodating cavity is 1 / 3 of the weight of the shell.

[0007] Optionally, the wall thickness of the damping sleeve is equal to the wall thickness of the housing.

[0008] Optionally, multiple damping sleeves are provided, and the multiple damping sleeves are spaced apart along the axial direction of the housing.

[0009] Optionally, the compressor housing further includes a support foot, which is fixedly connected to the side of the damping disc facing away from the housing.

[0010] Optionally, the compressor housing further includes an acceleration sensor, which is fixedly connected to the outer wall of the housing.

[0011] Optionally, the compressor housing further includes a noise sensor, which is fixedly connected to the outer wall of the housing.

[0012] Optionally, the compressor housing further includes: A controller, the input of which is communicatively connected to the outputs of the accelerometer and the noise sensor; The display screen has its input terminal communicatively connected to the output terminal of the controller.

[0013] The present invention also provides a compressor assembly, including a motor assembly and a compressor assembly, and further including a compressor housing as described in any of the preceding claims, wherein the motor assembly and the compressor assembly are disposed within the housing of the compressor housing.

[0014] The technical solutions provided by this invention have at least the following beneficial effects compared with the prior art: The compressor housing and compressor assembly of this invention, with the help of the damping sleeve surrounding the housing and the first damping particles inside it, can suppress part of the horizontal vibration of the housing. With the help of the damping disc located at the bottom of the housing and the second damping particles inside it, it can suppress part of the axial vibration of the housing. Thus, it can suppress the vibration of the compressor housing in both the axial and horizontal directions, thereby reducing noise. Moreover, the welding connection between the damping sleeve and the damping disc and the housing ensures the stability of the connection relationship, which can maintain the vibration reduction and noise reduction effect for a long time. There is no safety risk caused by the aging of rubber parts and the loosening of bolts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the compressor housing according to one embodiment of the present invention; Figure 2 for Figure 1 The image shows a partial cross-sectional view of the compressor housing.

[0016] Figure label: 1: Housing; 2: Damping sleeve; 3: First damping particle; 4: Damping disc; 5: Second damping particle; 6: Support foot; 7: Gas-liquid separator. Detailed Implementation

[0017] The embodiments of the present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of the present invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0018] Figure 1 This is a schematic diagram of the compressor housing according to one embodiment of the present invention; Figure 2 for Figure 1 The image shows a partial cross-sectional view of the compressor housing. (See image.) Figure 1 and Figure 2 As shown, the compressor housing includes a housing 1, a damping sleeve 2, a first damping particle 3, a damping disc 4, and a second damping particle 5. The housing 1 has a receiving cavity; the damping sleeve 2 is fitted onto the housing 1, and the inner wall of the damping sleeve 2 is welded to the circumferential outer wall of the housing 1, with an annular cavity inside; the first damping particle 3 is disposed within the annular cavity; the damping disc 4 is welded to the outer wall of the bottom plate of the housing 1, and a receiving cavity is disposed within the damping disc 4; the second damping particle 5 is disposed within the receiving cavity.

[0019] The compressor housing 1 houses components such as a compression assembly and a motor assembly. When the compressor operates, the compression assembly inside the housing 1 vibrates, causing the housing 1 to vibrate. When the housing 1 vibrates, the damping sleeve 2, circumferentially welded to it, vibrates accordingly. This causes the first damping particles 3 within the annular damping sleeve 2 to vibrate. The first damping particles 3 collide, rub, and move against each other. Simultaneously, the first damping particles 3 collide and rub against the inner wall of the damping sleeve 2, thus consuming vibration energy and suppressing part of the horizontal (radial) vibration of the housing 1. Simultaneously, when the housing 1 vibrates, the damping disc 4, welded to the bottom plate of the housing 1, vibrates accordingly. This causes the second damping particles 5 within the damping disc 4 to vibrate. The second damping particles 5 collide, rub, and move against each other. Simultaneously, the second damping particles 5 collide and rub against the inner wall of the damping disc 4, thus consuming vibration energy and suppressing part of the axial vibration of the housing 1. By suppressing the vibration of the housing 1, noise is further reduced. Moreover, the damping sleeve 2 and the damping disc 4 are welded to the shell 1 respectively, and the connection is stable, so there will be no problems such as aging and cracking or loosening and falling off of bolts.

[0020] By employing the compressor housing of this invention, the damping sleeve 2 surrounding the housing 1 and the first damping particles 3 inside it can suppress part of the horizontal vibration of the housing 1. By employing the damping disc 4 located at the bottom of the housing 1 and the second damping particles 5 inside it, the axial vibration of the housing 1 can be suppressed. This achieves suppression of vibration in both the axial and horizontal directions of the compressor housing 1, thereby reducing noise. Furthermore, the welding connection between the damping sleeve 2 and the damping disc 4 and the housing 1 ensures the stability of the connection relationship, maintaining the vibration reduction and noise reduction effect for a long time, and eliminating the safety risks caused by rubber aging and bolt loosening.

[0021] like Figure 1 and Figure 2 As shown, in this embodiment, the housing 1 is a hollow cylinder made of hot-rolled steel plate, with an internal cavity for accommodating components such as the rotor, scroll plate, and motor assembly. The damping sleeve 2 is a hollow ring fitted onto the housing 1 at approximately its center height. The inner wall of the damping sleeve 2 is welded to the outer circumferential wall of the housing 1. The hollow annular cavity of the damping sleeve 2 is filled with first damping particles 3. The cross-section of the damping sleeve 2 is annular, forming a continuous damping ring around the housing 1. The damping disk 4 is located at the bottom of the housing 1, is approximately a hollow cylinder, and is welded to the bottom plate of the housing 1. When a support plate is provided at the bottom of the housing 1, the damping disk 4 is welded to the support plate. The cross-sectional area of ​​the damping disk 4 is approximately the same as that of the housing 1, almost covering the entire bottom support area of ​​the housing 1. The damping disk 4 is filled with second damping particles 5. In this embodiment, both the first damping particle 3 and the second damping particle 5 are made of high-temperature resistant alloy steel particles with a temperature resistance of ≥120℃. They dissipate energy through collision, friction, and shearing under vibration. Other metal particles, such as steel balls or tungsten balls, can also be used. The damping sleeve 2 and the damping disc 4 are made of the same material as the housing 1. The filling rate of the first damping particle 3 in the damping sleeve 2 and the filling rate of the second damping particle 5 in the damping disc 4 are both 50%-70%. Using the compressor housing of this invention, the vibration acceleration of the housing 1 is reduced by ≥40%, and the noise is reduced by ≥8dB(A), significantly improving comfort. Depending on the actual application, the shape and size of the housing 1 can be adjusted, and the shape and size of the damping sleeve 2 and the damping disc 4 can be adjusted accordingly. Besides metal particles, the first damping particle 3 and the second damping particle 5 can also be replaced with ceramic particles, glass particles, or high-temperature resistant polymer particles, achieving similar vibration reduction effects at a lower cost. The compressor housing of this invention can be adapted to fixed-frequency / variable-frequency rotor and scroll compressors, and is particularly suitable for compressor systems that require low vibration and low noise, such as household air conditioners, commercial heat pumps, and refrigeration units.

[0022] Optionally, the particle size of the first damping particle 3 is 0.5mm-1mm, and the total weight of the first damping particles 3 in the annular cavity is 1 / 5 of the weight of the shell 1. With this arrangement, the damping sleeve 2 can be limited to suppressing the mid-to-high frequency vibrations of the shell 1 by means of the particle size of the first damping particles 3 and the weight ratio of the first damping particles 3 to the shell 1.

[0023] In this embodiment, the particle size of the first damping particle 3 is 0.5 mm, and the filling rate of the first damping particle 3 in the annular cavity is 70%. Depending on the actual application, the particle size of the first damping particle 3 can also be appropriately adjusted within the above-mentioned particle size range.

[0024] Optionally, the particle size of the second damping particle 5 is 1.5 mm, and the total weight of the second damping particles 5 in the accommodating cavity is 1 / 3 of the weight of the shell 1. With this arrangement, the particle size of the second damping particle 5 and the weight ratio of the second damping particle 5 to the shell 1 can be used to limit the damping disk 4 to mainly suppress the low-frequency impact and resonance of the shell 1. Thus, the damping disk 4 and the damping sleeve 2 cooperate with each other to suppress both the low-frequency vibration and the mid-to-high-frequency vibration of the shell 1, that is, to achieve the suppression of the full-frequency vibration of the shell 1.

[0025] In this embodiment, the second damping particle 5 has a filling rate of 60% in the accommodating cavity.

[0026] Optionally, the wall thickness of the damping sleeve 2 is equal to the wall thickness of the housing 1. This arrangement ensures that the overall strength of the damping sleeve 2 is similar to that of the housing 1, and that the damping sleeve 2 has sufficient pressure-bearing capacity.

[0027] In this embodiment, the wall thickness of the damping sleeve 2 meets the requirement of bearing pressure ≥ 3.0 MPa. Depending on the actual application, the wall thickness of the damping sleeve 2 can be adjusted according to the wall thickness of the housing 1.

[0028] Taking a 1.5HP household air conditioner rotary compressor as an example, using the compressor housing of this invention, the outer diameter of the housing 1 is φ85mm, the width of the annular cavity of the damping sleeve 2 is 8mm, the diameter of the receiving cavity of the damping disk 4 is φ80mm, and the wall thickness of the damping disk 4, the damping sleeve 2 and the housing 1 are all 10mm. The damping sleeve 2 is filled with alloy steel particles with a diameter of 0.5mm, with a filling rate of 70%, and the damping disk 4 is filled with alloy steel particles with a diameter of 1.5mm, with a filling rate of 60%. Compared with the compressor housing without this invention, the measured vibration acceleration of the housing 1 decreased from 4.8m / s² to 2.7m / s², and the noise decreased from 38dB(A) to 29dB(A).

[0029] Optionally, multiple damping sleeves 2 are provided, and the multiple damping sleeves 2 are spaced apart along the axial direction of the housing 1. This arrangement allows for the placement of first damping particles 3 of different sizes and weights in the multiple damping sleeves 2 to suppress vibrations in different mid-to-high frequency ranges.

[0030] In one embodiment, two damping sleeves 2 are provided, spaced apart along the axial direction of the housing 1, that is, along the longitudinal direction of the housing 1. The two annular damping sleeves 2 are respectively fitted onto the housing 1, and the inner walls of the two damping sleeves 2 are respectively welded to the outer wall of the housing 1. According to experimental analysis, first damping particles 3 of different particle sizes and weights can be placed in the two damping sleeves 2 to further subdivide the vibration in the mid-to-high frequency range, so that the two damping sleeves 2 suppress the vibration of the housing 1 in different mid-to-high frequency ranges. After testing, the vibration reduction effect of the housing 1 can be improved by 10%–15% by setting two damping sleeves 2.

[0031] Optionally, the compressor housing also includes a support foot 6, which is fixedly connected to the side of the damping disc 4 facing away from the housing 1. This arrangement increases the contact area with the components by means of the support foot 6, thereby improving the stability of the installation structure.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the support foot 6 is fixedly connected to the bottom surface of the damping disk 4. The cross-section of the support foot 6 is larger than the cross-section of the damping disk 4 and the housing 1. A mounting hole is provided through the support foot 6 so that the compressor housing can be fixed to the other component as a whole using fasteners. The specific shape and size of the support foot 6 can be adjusted according to the actual application.

[0033] Optionally, the compressor housing also includes an acceleration sensor (not shown), which is fixedly connected to the outer wall of the housing 1. This configuration allows for real-time detection of the vibration acceleration of the housing 1 during compressor operation. Depending on the application, any commercially available acceleration sensor suitable for the compressor's operating conditions can be selected, such as a capacitive, inductive, strain gauge, piezoresistive, or piezoelectric acceleration sensor.

[0034] Optionally, the compressor housing also includes a noise sensor, which is fixedly connected to the outer wall of housing 1. This configuration allows for real-time detection of noise emitted by housing 1 during compressor operation. Depending on the specific application, any commercially available noise sensor meeting the compressor's operating conditions can be selected.

[0035] Optionally, the compressor housing also includes a controller (not shown) and a display screen (not shown), wherein the input of the controller is communicatively connected to the output of the acceleration sensor and the noise sensor; and the input of the display screen is communicatively connected to the output of the controller.

[0036] During compressor operation, an accelerometer sensor detects the vibration acceleration of housing 1 in real time and transmits the vibration acceleration data to the controller. Similarly, a noise sensor detects the noise emitted by housing 1 in real time and transmits the noise data to the controller. The controller receives the vibration acceleration and noise data and displays them on a screen for intuitive observation, allowing operators to directly observe the vibration and noise levels of housing 1. Both the accelerometer and noise sensor are mature, existing technologies. The process of the controller transmitting the vibration acceleration and noise data from these sensors to the screen is also a mature operational logic; its specific structure and working principle will not be elaborated upon here. The screen can be installed at the compressor's operating site or in a remote monitoring room, allowing for viewing by both on-site and remote personnel.

[0037] The present invention also provides a compressor assembly, including a motor assembly and a compressor assembly, and further including a compressor housing as described in any of the above embodiments, wherein the motor assembly and the compressor assembly are disposed within the housing 1 of the compressor housing.

[0038] The compression assembly is the core working component of the compressor, located at the center inside the housing 1. The motor assembly drives the compression assembly, and its position within the housing 1 varies depending on its specific working relationship with the compression assembly. During compressor assembly operation, it works in conjunction with the gas-liquid separator 7, such as... Figure 1 and Figure 2 As shown, the gas-liquid separator 7 is connected to the compressor assembly via a pipeline.

[0039] The compressor assembly of this invention, with the help of the damping sleeve 2 surrounding the housing 1 and the first damping particles 3 inside it, can suppress part of the horizontal vibration of the housing 1. With the help of the damping disc 4 located at the bottom of the housing 1 and the second damping particles 5 inside it, it can suppress part of the axial vibration of the housing 1. Thus, it can suppress the vibration of the compressor housing 1 in both the axial and horizontal directions, thereby reducing noise. Moreover, the welding connection between the damping sleeve 2 and the damping disc 4 and the housing 1 ensures the stability of the connection relationship, can maintain the vibration reduction and noise reduction effect for a long time, and there is no safety risk caused by the aging of rubber parts and the loosening of bolts.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A compressor housing, characterized in that, include: A housing, wherein a receiving cavity is provided within the housing; A damping sleeve is fitted onto the housing, the inner wall of the damping sleeve is welded to the circumferential outer wall of the housing, and an annular cavity is provided inside the damping sleeve. A first damping particle is disposed within the annular cavity; A damping disc is welded to the outer wall of the bottom plate of the housing, and a receiving cavity is provided inside the damping disc; The second damping particle is disposed within the accommodating cavity.

2. The compressor housing according to claim 1, characterized in that: The particle size of the first damping particle is 0.5mm-1mm, and the total weight of the first damping particles in the annular cavity is 1 / 5 of the weight of the shell.

3. The compressor housing according to claim 2, characterized in that: The second damping particle has a particle size of 1.5 mm, and the total weight of the second damping particles in the accommodating cavity is 1 / 3 of the weight of the shell.

4. The compressor housing according to any one of claims 1-3, characterized in that: The wall thickness of the damping sleeve is equal to the wall thickness of the housing.

5. The compressor housing according to any one of claims 1-3, characterized in that: Multiple damping sleeves are provided, and the multiple damping sleeves are sleeved on the housing at intervals along the axial direction of the housing.

6. The compressor housing according to any one of claims 1-3, characterized in that, Also includes: The support foot is fixedly connected to the side of the damping disc facing away from the housing.

7. The compressor housing according to any one of claims 1-3, characterized in that, Also includes: An accelerometer is fixedly connected to the outer wall of the housing.

8. The compressor housing according to claim 7, characterized in that, Also includes: A noise sensor is fixedly connected to the outer wall of the housing.

9. The compressor housing according to claim 8, characterized in that, Also includes: A controller, the input of which is communicatively connected to the outputs of the accelerometer and the noise sensor; The display screen has its input terminal communicatively connected to the output terminal of the controller.

10. A compressor assembly, comprising a motor assembly and a compressor assembly, characterized in that, It also includes the compressor housing according to any one of claims 1-9, wherein the motor assembly and the compression assembly are disposed within the housing of the compressor housing.

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