CN118532355B

CN118532355B - Noise suppression piece and compressor

Info

Publication number: CN118532355B
Application number: CN202410993688.1A
Authority: CN
Inventors: 张泽宇; 顾洪华
Original assignee: Garrett Power Technology Shanghai Co ltd
Current assignee: Garrett Power Technology Shanghai Co ltd; Garrett Power Technology Wuhan Co ltd
Priority date: 2024-07-24
Filing date: 2024-07-24
Publication date: 2024-11-08
Anticipated expiration: 2044-07-24
Also published as: CN118532355A

Abstract

The present invention relates to a noise suppressor, which can be installed in a mounting groove of a compressor housing, the mounting groove extends circumferentially and has a first radial dimension, and the noise suppressor comprises: an annular body extending circumferentially, the annular body being located radially inside the mounting groove; an elastic member connected to the annular body, the elastic member comprising at least one elastic mounting portion, the elastic mounting portion protruding radially outward from the annular body so that the elastic mounting portion has a second radial dimension, wherein the second radial dimension of the elastic mounting portion is greater than the first radial dimension of the mounting groove, and the elastic mounting portion can be elastically deformed so that the noise suppressor can be detachably mounted to the mounting groove by means of the elastic mounting portion. This noise suppressor can be detachably mounted to the mounting groove by means of elastic deformation without the need for additional components such as elastic retaining rings, thereby reducing installation costs and avoiding accidental detachment from the compressor housing. In addition, the present invention also relates to a compressor.

Description

Noise suppression piece and compressor

Technical Field

The invention belongs to the technical field of air compressors, and relates to a noise suppression piece. The invention further relates to a compressor comprising such a noise suppression.

Background

A muffler (also referred to as a sound deadening ring, or a sound deadening ring) of a compressor is a component for reducing noise generated when the compressor is operated. Such a muffler is generally installed in a compressor housing near a discharge port or an intake port of the compressor so as to reduce noise by sound wave absorption, scattering, and damping, and thus may also be referred to as a noise suppressor. Such silencers are typically mounted by means such as circlips or wave rings into mounting grooves provided on the compressor housing.

For example, in the patent of the invention entitled "a pre-rotation silencer for effectively widening the flow range of a compressor" filed by the institute of northern China (Tianjin) on the 5 th month 18 of 2016, a pre-rotation silencer is disclosed which comprises a compressor volute with a casing treatment, a silencing ring with pre-rotation blades and a circlip, wherein the silencing ring is arranged at the inlet of the compressor volute and is fixed by the circlip.

Such a sound dampening ring is fixed to the compressor inlet by means of a circlip, however, the assembly of the circlip is difficult and there is a risk of the circlip getting loose from the groove if it is not fitted in place. On the other hand, the cost of a mounting component such as a wave washer is somewhat high because it is not a standard on the market.

Accordingly, there is a need for an improvement in the art muffler to provide an improved noise suppression that overcomes one or more of the disadvantages of the prior art.

Disclosure of Invention

The object of the present invention is to reduce the processing cost of a sound deadening ring for a compressor and the difficulty of installation thereof, and to improve the safety of the compressor while still maintaining the desired noise suppressing effect.

According to one aspect of the present invention, a noise suppression member mountable to a mounting groove of a housing of a compressor, the mounting groove extending circumferentially and having a first radial dimension, the noise suppression member may include: a circumferentially extending annular body located radially inward of the mounting groove; and an elastic member coupled to the annular body, the elastic member including at least one elastic mounting portion protruding radially outward from the annular body such that the elastic mounting portion has a second radial dimension, wherein the second radial dimension of the elastic mounting portion is greater than the first radial dimension of the mounting groove, and the elastic mounting portion is elastically deformable, e.g., at least radially or axially, such that the noise suppression member is detachably mounted to the mounting groove by the elastic mounting portion.

Such noise suppressors can be detachably mounted to the mounting groove by elastic deformation without additional parts such as circlips, reducing the mounting cost and avoiding accidental falling off from the housing of the compressor.

According to the above aspect of the present invention, preferably, the elastic mounting portion is elastically deformable when being caught in the mounting groove, and the noise suppression member is held in the mounting groove only by an elastic force generated by the elastic deformation.

Thus, the noise suppression member can be held in the mounting groove only by the elastic force generated by the elastic deformation, thereby forming an elastic self-locking structure without the need for a retainer ring, a fastener or other auxiliary components, reducing the required mounting components, and improving the reliability.

According to the above aspect of the present invention, preferably, the mounting groove has a first height in the axial direction and the elastic mounting portion has a second height in the axial direction, the second height being measured between a highest point of the elastic mounting portion and the lower surface of the annular body, wherein the second height of the elastic mounting portion is greater than the first height of the mounting groove and the elastic mounting portion is elastically deformable in the axial direction to engage the annular body to the mounting groove.

By means of the arrangement, a more reliable self-locking structure is formed, circumferential movement of the annular body can be prevented, and mounting reliability is further improved.

According to the above aspect of the present invention, preferably, the elastic member may further include an elastic attachment portion, the elastic mounting portion being connected to the annular body via the elastic attachment portion and protruding from an upper surface of the annular body, a radial gap being formed between the elastic member and the annular body.

By such an elastic mounting portion, a structure capable of elastic displacement or deformation in both the radial direction and the axial direction can be formed, and the reliability of mounting is further improved.

According to the above aspect of the present invention, preferably, the noise suppression member may be made of metal or metal alloy, and the elastic member is formed on the annular body by a stamping process; or the noise suppression may be made of a non-metal and the resilient member is integrally formed on the annular body by a molding process.

The noise suppression member can be formed as a single member, thereby reducing material consumption and processing cost, and facilitating rapid mass production.

According to the above aspect of the present invention, in order to further facilitate the mounting and the engagement of the noise suppression member to the mounting groove of the housing of the compressor, preferably, the shape of the elastic mounting portion may include any one of the following shapes: a flat shape; u-shape; v-shape.

According to the above aspect of the present invention, preferably, in order to better keep the noise suppression member balanced in the mounting groove and improve the noise suppression effect, the annular body may include an outer peripheral edge, and the elastic member includes at least three elastic mounting portions arranged at intervals on the outer peripheral edge.

According to the above aspect of the present invention, preferably, the noise suppression member may further include a pin groove arranged on the annular body at a distance (e.g., circumferentially spaced apart) from the elastic member.

By this pin and slot arrangement, the noise suppression is allowed to be installed by means of a tool that cooperates with the pin and slot, further reducing the difficulty of installation and improving the efficiency and reliability of installation.

According to another aspect of the present invention, a compressor is presented, which may have a housing, an inlet of which is provided with a mounting groove, wherein a noise suppression according to the above aspect is provided in the mounting groove.

The compressor can improve the assembly efficiency and reduce the cost of the compressor while ensuring the noise suppression effect.

According to the above aspect of the present invention, preferably, a first opening may be provided on the periphery of the mounting groove, the first opening having a third radial dimension, and the third radial dimension may be greater than the second radial dimension of the elastic mounting portion to allow the elastic member to be mounted to the mounting groove via the first opening. This allows for a more convenient and quick installation of the noise suppression in the mounting slot.

At this time, the noise suppression piece can be conveniently and rapidly installed in the installation groove without radial deformation, and the installation efficiency is further improved.

According to the above aspect of the invention, preferably, the peripheral edge of the mounting groove may further include a second opening arranged spaced apart from the first opening in the circumferential direction, the second opening being shaped to at least partially receive the elastic mounting portion to lock the elastic mounting portion in the second opening.

By locking the elastic mounting portion in the second opening, the mounting of the noise suppression member can be further facilitated, and after the mounting in place, the noise suppression member is prevented from moving accidentally in the circumferential direction, the mounting reliability is ensured, and the noise suppression effect is improved.

Therefore, the noise suppression component can meet the use requirement, overcomes the defects of the prior art and achieves the preset purpose.

Drawings

For a further clear description of the noise suppression according to the invention, the invention will be described in detail below with reference to the drawings and to the detailed description, wherein:

FIGS. 1 and 2 show schematic perspective views of a compressor according to a non-limiting embodiment of the present invention from different angles;

FIG. 3 illustrates a front view of a compressor according to a non-limiting embodiment of the present invention;

FIG. 4A illustrates a cross-sectional view taken through section line A-A of the compressor of FIG. 3;

FIG. 4B shows an enlarged view of a portion of FIG. 4A;

Fig. 5 shows a schematic perspective view of a compressor fitted with a noise suppression according to the invention;

FIG. 6 shows a cross-sectional view of the compressor of FIG. 5;

FIG. 7 illustrates a front view of the compressor of FIG. 5;

FIG. 8 illustrates a cross-sectional view taken through section line B-B of the compressor of FIG. 7;

FIG. 9 shows a schematic cross-sectional perspective view of a portion of a compressor according to a non-limiting embodiment of the invention;

FIG. 10 shows an enlarged view of a portion of the compressor of FIG. 9;

FIGS. 11-15 illustrate different views of a noise suppression according to a first non-limiting embodiment of the present invention;

FIGS. 16-18 illustrate different views of a noise suppression according to a second non-limiting embodiment of the present invention;

FIGS. 19-20 illustrate different views of a noise suppression according to a third non-limiting embodiment of the present invention;

FIG. 21 illustrates a cut-away perspective view of a compressor having the noise suppression assembly of FIGS. 19-20 installed therein; and

Fig. 22 shows an enlarged view of a portion of fig. 21.

The figures are merely schematic and are not drawn to scale.

List of reference numerals in the figures and examples:

a 1000-compressor, comprising:

a 100-noise suppression article comprising:

a 10-ring body comprising:

11-an outer periphery;

12-inner periphery;

13-upper surface;

14-lower surface;

A 20-resilient member comprising:

21-an elastic mounting portion;

22-elastic attachment;

30-pin slots;

200-mounting groove, comprising:

201-a first opening;

202-a second opening;

200A-a first groove portion;

200B-a second groove portion;

300-a housing comprising:

301-an inlet;

302-outlet;

r1-a first radial dimension;

r2-a second radial dimension;

r3-a third radial dimension;

r4-fourth radial dimension;

r5-fifth radial dimension;

r6-sixth radial dimension;

h 1-a first height;

h 2-a second height;

an X-radial direction;

y-axial direction;

C-circumferential direction.

Detailed Description

It is to be understood that the invention may assume various alternative orientations and step sequences, except where expressly specified to the contrary. It should be further understood that the specific devices illustrated in the accompanying drawings and described in the specification are simply exemplary embodiments of the inventive concepts disclosed and defined herein. Thus, unless explicitly stated otherwise, the particular orientations, directions, or other physical characteristics to which the various embodiments disclosed relate should not be considered limiting.

An air compressor is a device that converts mechanical energy into gas pressure energy and may generally include reciprocating (piston) compressors, axial flow compressors, centrifugal compressors, and the like. The centrifugal air compressor drives gas to rotate at a high speed through the impeller to generate centrifugal force, and the pressure and the flow velocity of the gas in the diffusion flow inside the impeller are improved.

In general, centrifugal compressors may include a press shell, an impeller, a diffuser plate, a volute, and an intermediate body. The shell is an important component of an air compressor, and generally refers to the casing, shell or housing of the entire compressor, which is used for supporting the internal impeller and other components, and is connected with an intermediate body. The impeller is a core component of a centrifugal compressor, which generates kinetic energy by rotation, thereby increasing the pressure and speed of the gas. The volute is a component behind the diffuser plate, typically downstream of the impeller, that collects the gas flow from the diffuser plate, and reduces the flow rate by diffusing the gas flow, thereby increasing the pressure of the gas. In addition, a volute may be used to direct the gas outside the compressor, to a gas delivery line or to a cooler. The expansion plate is positioned behind the impeller and is used for converting the kinetic energy of the gas into pressure energy. The intermediate body, also called bearing housing, is a critical component for maintaining a stable high-speed rotation of the rotor. The middle body can be internally provided with a turbine shaft, a floating bearing, a thrust bearing, a fixed sleeve shaft seal and the like.

The housing of the centrifugal compressor may be provided with an air inlet end for guiding a medium, such as a gas, uniformly to the impeller (e.g. guiding the medium axially), reducing turbulence and separation losses of the air flow.

Fig. 1 and 2 show schematic perspective views of a compressor 1000 according to a non-limiting embodiment of the present invention from different angles.

As shown and as a non-limiting example, the compressor 1000 may include a housing 300 that may have an inlet 301 and an outlet 302. A medium to be compressed, such as a gas, may enter the compressor 1000 via the inlet 301 and exit the compressor via the outlet 302 after being compressed via the impeller, diffuser plate, volute, etc. structures.

At the inlet 301 of the housing 300 of the compressor 1000, a mounting groove 200 may be provided, which mounting groove 200 may extend circumferentially (i.e. along the circumferential direction C) and have a first radial dimension R1.

The first radial dimension R1 may be a dimension measured in the radial direction X. For example, the radial direction X may be a direction passing through the geometric center of the mounting groove 200. For the mounting groove 200 having a substantially circular shape, the radial direction X may be a radial direction thereof, and the first radial dimension R1 may be a radial dimension of the mounting groove 200. At this time, the first radial dimension R1 is a distance between the edge profile of the installation groove 200 facing the center of the circle and the center of the circle, and is not a distance between the bottom of the groove of the installation groove 200 (i.e., the bottom away from the center of the circle) and the center of the circle. Thus, the first radial dimension R1 defines the radial or cross-sectional size of the inlet channel portion of the inlet 301.

Fig. 3 shows a front view of a compressor 1000 according to a non-limiting embodiment of the present invention.

As shown in fig. 2 and 3 and as a non-limiting example, a first opening 201 may be provided on a peripheral edge (e.g., an upper peripheral edge) of the mounting groove 200. The first opening 201 may be circular arc-shaped and have a third radial dimension R3, which third radial dimension R3 may be greater than the first radial dimension R1. The third radial dimension R3 may be measured similarly to the first radial dimension R1 (see fig. 3), i.e. the distance between the edge profile of the first opening 201 and the geometric center of the mounting groove 200. In other words, the third radial dimension R3 is not the radius of curvature or radial dimension of the circular arc segment itself.

In addition, a second opening 202 arranged spaced apart from the first opening 201 in the circumferential direction C is further included at a periphery (e.g., an upper periphery) of the mounting groove 200. As shown in fig. 2, the circumferential length of the second opening 202 may be smaller than the first opening 201, i.e., the second opening 202 is a smaller opening than the first opening 201.

FIG. 4A illustrates a cross-sectional view taken through section line A-A of the compressor 1000 of FIG. 3; while figure 4B shows an enlarged view of a portion of figure 4A.

As shown and as a non-limiting example, the mounting groove 200 may be a stepped groove and include a first groove portion 200A and a second groove portion 200B such that the mounting groove 200 may have an overall first height h1. The first height h1 may be measured in the axial direction Y.

The axial direction Y may be a direction opposite to the direction of airflow into the compressor 1000, and the axial direction Y may be perpendicular to the radial direction X, and may be orthogonal to the circumferential direction C.

As shown in detail in fig. 4B, the first groove portion 200A may be further recessed into the circumferential wall of the inlet and have a fourth radial dimension R4, which fourth radial dimension R4 may be greater than the first radial dimension R1. The fourth radial dimension R4 may be measured similarly to the first radial dimension R1.

The second groove portion 200B may have a fifth radial dimension R5, and the fifth radial dimension R5 may be smaller than the fourth radial dimension R4.

As an example, the fifth radial dimension R5 may be approximately equal to the first radial dimension R1. In this way, in the case where the fifth radial dimension R5 is substantially equal to the first radial dimension R1, the circumferential wall at the inlet 301 of the housing 300 may be regarded as having only one groove recessed into the circumferential wall, i.e., the first groove portion 200A.

In the views of fig. 4A and 4B, the wall thickness of the circumferential wall on the left side of the second groove portion 200B may be smaller than the wall thickness of the circumferential wall on the right side of the second groove portion 200B. In other words, the cross section of the medium flow passage decreases in the direction opposite to the axial direction Y in fig. 4B.

Fig. 5 shows a schematic perspective view of a compressor 1000 with a noise suppression 100 according to the invention installed; and figure 6 shows a cross-sectional view of the compressor 1000 of figure 5.

As shown, the noise suppression member 100 can be mounted to the mounting groove 200 of the housing 300 of the compressor 1000. The noise suppression 100 may mainly include: a circumferentially extending annular body 10 and a resilient member 20 connected to the annular body 10. The annular body 10 may be located radially inward of the mounting groove 200.

Fig. 7 shows a front view of the compressor 1000 of fig. 5; FIG. 8 illustrates a cross-sectional view taken through section line B-B of the compressor 1000 of FIG. 7; FIG. 9 shows a schematic cross-sectional perspective view of a portion of a compressor 1000 according to a non-limiting embodiment of the invention; and figure 10 shows an enlarged view of a portion of the compressor 1000 of figure 9.

As shown, the annular body 10 may have a guide surface of generally arcuate cross-section for smoothing the flow of medium into the inlet 301 of the housing 300 to reduce the noise generated.

As shown more clearly in fig. 10, the annular body 10 abuts against the second groove portion 200B of the mounting groove 200, while the elastic member 20 extends into the first groove portion 200A and snaps therein.

By way of example, in the embodiment of fig. 7-10, the resilient member 20 snaps into the second opening 202 and preferably snaps resiliently therein, i.e., the resilient mounting portion 21 of the resilient member 20 is resiliently deformed.

As also schematically shown in fig. 10, the elastic mounting portion 21 has a second height h2 in the axial direction Y, the second height h2 being measured between the highest point of the elastic mounting portion 21 and the lower surface 14 of the annular body 10.

Fig. 11-15 show different views of a noise suppression 100 according to a first non-limiting embodiment of the invention.

As shown, the noise suppression 100 may be generally annular and include an annular body 10 and a resilient member 20. The annular body 10 may include an outer peripheral edge 11 and an opposing inner peripheral edge 12, and an upper surface 13 and an opposing lower surface 14.

The elastic member 20 may include at least one elastic mounting portion 21. For example, as shown in fig. 11, the elastic member 20 includes three elastic mounting portions 21 of at least three elastic mounting portions 21 arranged at intervals on the outer peripheral edge 11. The elastic member 20 further includes an elastic attachment portion 22, and the elastic mounting portion 21 is connected to the annular body 10 via the elastic attachment portion 22 and protrudes from an upper surface of the annular body 10, forming a radial gap between the elastic member 20 and the annular body 10.

The elastic member 20 is connected with the ring-shaped body 10. For example, the elastic member 20 and the ring body 10 may be integrally formed, or the elastic member 20 and the ring body 10 may be separately formed, and the elastic member 20 is connected to the ring body 10 via a connection means such as welding, bonding, or riveting.

As an example in which the elastic member 20 is integrally formed with the annular body 10, the noise inhibitor 100 may be made of a metal or a metal alloy such as an aluminum alloy or steel, and the elastic member 20 is formed on the annular body 10 by a stamping process. As an alternative example, the noise suppression member 100 may be made of a non-metal such as plastic or a composite material, and the elastic member 20 is integrally formed on the annular body 10 through a molding process.

As shown in fig. 14, the elastic mounting portion 21 protrudes radially outward from the annular body 10 such that the elastic mounting portion 21 has a second radial dimension R2. The second radial dimension R2 of the resilient mounting portion 21 may be greater than the first radial dimension R1 of the mounting groove 200. In addition, the outer peripheral edge 11 of the elastic member 20 may have a sixth radial dimension R6, which may be about equal to or slightly smaller than the fifth radial dimension R5, to enable the annular body 10 to rest against the second groove portion 200B of the mounting groove 200 (see fig. 4B and 10).

Such an elastic mounting portion 21 is elastically deformable, for example, at least in the radial direction or the axial direction. The radial deformation may be a relative displacement of the elastic mounting portion 21 toward the center, and as the deformation increases, the corresponding elastic restoring force increases accordingly. The axial deformation may be achieved due to a change in height of the elastic attachment portion 22 or the elastic mounting portion 21 in the axial direction Y, and as such, as the deformation increases, the corresponding elastic restoring force increases accordingly.

As described above with reference to fig. 5-10, the noise inhibitor 100 may be mounted to the mounting groove 200, and in particular, the noise inhibitor 100 is mounted to the first groove portion 200A of the mounting groove 200 by means of radially inward deformation of the resilient mounting portion 21.

As an example of the radial deformation detachable mounting, at the time of mounting, the elastic mounting portion 21 may be first deformed radially inward, and at the time of placement in the mounting groove 200, the elastic mounting portion 21 may be elastically restored so that the radially outermost edge of the elastic mounting portion 21 may abut against the groove bottom of the first groove portion 200A, thereby holding the noise suppression product 100 at a predetermined position within the mounting groove 200. At this time, the second radial dimension R2 may be greater than the fourth radial dimension R4, thereby ensuring that, after installation, the resilient mounting portion 21 is still resiliently deformed to hold the noise damper 100 in place.

When it is desired to remove the noise damper 100 from the mounting groove 200, the resilient mounting portion 21 may likewise be deformed radially inwardly to allow removal from the first groove portion 200A of the mounting groove 200 to effect removable mounting of the noise damper 100 to the mounting groove 200.

At this time, the elastic mounting portion 21 is elastically deformed when being caught in the mounting groove 200, and the noise suppression product 100 can be held in the mounting groove 200 only by the elastic force generated by the elastic deformation, and no additional holding force or holding member (e.g., fastener, retainer ring, etc.) is required.

As described above, "detachably mounted" as used herein means that the noise suppression member 100 can be mounted to or removed from the mounting groove 200 by its own elastic deformation without additional threaded fasteners, adhesives, etc., nor welding or staking to the mounting groove 200.

As an example of the axial deformation detachable mounting, the mounting groove 200 has a first height h1 in the axial direction Y, and the elastic mounting portion 21 has a second height h2 in the axial direction Y, the second height h2 being measured between the highest point of the elastic mounting portion 21 and the lower surface 14 of the annular body 10.

In order to ensure that the elastic mounting portion 21 is elastically deformed in the axial direction after being caught in the mounting groove 200, the second height h2 of the elastic mounting portion 21 is greater than the first height h1 of the mounting groove 200. In this way, the elastic mounting portion 21 can be elastically deformed in the axial direction Y to engage the annular body 10 to the mounting groove 200 when mounted in the mounting groove 200.

As shown in fig. 11-14, the noise suppression piece 100 further comprises pin grooves 30, which pin grooves 30 are arranged on the annular body 10 spaced apart from the resilient member 20, for example spaced apart along the circumferential direction C, and preferably equally spaced apart for better force balance.

It should be appreciated that while in the embodiment shown in fig. 11-15, the resilient member 20 and the pin slot 30 are disposed along the outer periphery 11 of the annular body 10, in alternative embodiments, the resilient member 20 and the pin slot 30 may be disposed at other locations, for example, at locations between the outer periphery 11 and the inner periphery 12. In addition, although the elastic member 20 and the pin groove 30 are respectively shown as 3 in this embodiment, those skilled in the art can contemplate the remaining number of elastic members 20 and pin grooves 30.

Fig. 16-18 show different views of a noise suppression 100 according to a second non-limiting embodiment of the invention.

The second non-limiting embodiment of the noise suppression 100 illustrated with reference to fig. 16-18 is substantially the same as or similar to the first non-limiting embodiment of the noise suppression 100 illustrated with reference to fig. 11-15, except as described below. Accordingly, repeated descriptions of the same or similar components are omitted for the sake of brevity, and the same or similar components are denoted by the same or similar reference numerals.

In the embodiment of the noise suppression 100 shown in fig. 11-15, the resilient mounting portion 21 may be generally V-shaped or generally U-shaped in shape; while in the embodiment of the noise suppression 100 shown in fig. 16-18, the shape of the resilient mounting portion 21 may be a generally flat shape to achieve different mounting effects or for different compressors 1000.

Fig. 19-20 show different views of a noise suppression 100 according to a third non-limiting embodiment of the invention.

The third non-limiting embodiment of the noise suppression 100 illustrated with reference to fig. 19-20 is substantially the same as or similar to the first non-limiting embodiment of the noise suppression 100 illustrated with reference to fig. 11-15, except as described below, and therefore, repeated descriptions of the same or similar components are omitted for brevity and the same or similar components are labeled with the same or similar reference numerals.

In the embodiment of the noise damper 100 shown in fig. 19-20, the resilient mounting portion 21 is attached to the annular body 10 via resilient attachment portions 22 on both sides; whereas in the embodiment of the noise suppression 100 shown in fig. 11-15, the resilient mounting portion 21 is attached to the annular body 10 via a resilient attachment portion 22 on one side such that the resilient mounting portion 21 has a free end.

Fig. 21 shows a cut-away perspective view of a compressor 1000 with the noise inhibitor 100 shown in fig. 19-20 installed; and fig. 22 shows an enlarged view of a portion of fig. 21.

As shown, the resilient member 20 of the noise suppression 100 shown in fig. 19-20 may achieve a greater spring force. Thus, the noise suppression member 100 can be more firmly held in the mounting groove 200.

In addition, such noise suppressors 100 may be made of non-metallic materials, such as via molding of various composite materials.

An exemplary installation process of the noise suppression 100 according to the present invention will be described below.

As described above, the first opening 201 is provided on the periphery of the mounting groove 200, the first opening having the third radial dimension R3 that is larger than the second radial dimension R2 of the elastic mounting portion 21 to allow the elastic member 20 to be mounted to the mounting groove 200 via the first opening 201. This mounting allows the noise suppression 100 to be mounted to the mounting groove 200 without elastic deformation in the radial direction X.

In addition, as described above, the mounting groove 200 further includes the second opening 202 arranged in the circumferential direction C spaced apart from the first opening 201 on the outer periphery 11, the second opening 202 being shaped to at least partially accommodate the elastic mounting portion 21. In this way, after the elastic member 20 is mounted to the mounting groove 200, the elastic member 20 may be rotated about its own axis, for example, toward the adjacent second opening 202 to lock the elastic mounting portion 21 in the second opening 202.

The process of removing the noise suppression 100 from the mounting slot 200 may be reversed from the mounting process described above.

The terms "upper", "lower", and the terms "first", "second", etc. as used herein to indicate orientation or orientation are merely for the purpose of better understanding of the concepts of the invention as shown in the preferred embodiments by those of ordinary skill in the art, and are not intended to limit the invention. Unless otherwise indicated, all orders, orientations, or orientations are used solely for the purpose of distinguishing one element/component/structure from another element/component/structure, and do not denote any particular order, order of operation, direction, or orientation unless otherwise indicated. For example, in alternative embodiments, the "first opening" may be the "second opening".

As used herein, unless otherwise indicated, the terms "substantially" and "about" are to be construed as meaning plus or minus five percent of the numerical value or numerical range, or as meaning that there is a deviation of plus or minus five percent of the shape and/or location.

In summary, the noise suppression 100 according to embodiments of the present invention overcomes the shortcomings of the prior art and achieves the intended objects.

While the noise suppression of the present invention has been described in connection with preferred embodiments, those of ordinary skill in the art will recognize that the foregoing examples are for the purpose of illustration only and are not intended to be a limitation of the present invention. Accordingly, the present invention may be variously modified and changed within the spirit of the claims, and all such modifications and changes are intended to fall within the scope of the claims of the present invention.

Claims

1. A noise suppression member (100) mountable to a mounting groove (200) at an inlet of a housing of a compressor, the mounting groove (200) extending circumferentially and having a first radial dimension (R1),

The noise suppression member (100) includes:

-a circumferentially extending annular body (10) radially inside the mounting groove (200), and the annular body (10) has a guiding surface of arcuate cross section;

An elastic member (20) connected to the annular body (10), said elastic member comprising at least one elastic mounting portion (21) protruding radially outwards from the annular body (10) so that the elastic mounting portion (21) has a second radial dimension (R2),

Wherein the second radial dimension (R2) of the resilient mounting portion (21) is larger than the first radial dimension (R1) of the mounting groove (200), and the resilient mounting portion (21) is resiliently deformable such that the noise damper (100) is detachably mounted to the mounting groove (200) by means of the resilient mounting portion,

The elastic mounting portion (21) is elastically deformed when being clamped into the mounting groove (200), and the noise suppression member (100) can be held in the mounting groove (200) only by an elastic force generated by the elastic deformation.

2. The noise suppression member (100) according to claim 1, characterized in that the mounting groove (200) has a first height (h 1) in an axial direction (Y), and the elastic mounting portion (21) has a second height (h 2) in the axial direction (Y), the second height being measured between a highest point of the elastic mounting portion (21) and a lower surface of the annular body (10),

Wherein the second height (h 2) of the elastic mounting portion (21) is greater than the first height (h 1) of the mounting groove (200), and the elastic mounting portion (21) is elastically deformable in the axial direction (Y) to engage the annular body (10) to the mounting groove (200).

3. The noise suppressor (100) of claim 2 wherein the resilient member (20) further comprises a resilient attachment portion (22), the resilient mounting portion (21) being connected to the annular body (10) via the resilient attachment portion (22) and protruding from an upper surface of the annular body (10), a radial gap being formed between the resilient member (20) and the annular body (10).

4. The noise suppressor (100) of claim 1 wherein the noise suppressor (100) is made of metal or metal alloy and the resilient member (20) is formed on the annular body (10) by a stamping process; or alternatively

The noise suppression member (100) is made of a non-metal, and the elastic member (20) is integrally formed on the annular body (10) by a molding process.

5. The noise suppression (100) according to any one of claims 1-4, wherein the shape of the resilient mounting portion (21) comprises any one of the following shapes: a flat shape; u-shape; v-shape.

6. The noise suppressor (100) of any one of claims 1-4 wherein the annular body (10) comprises an outer peripheral edge (11) and the resilient member (20) comprises at least three resilient mounting portions (21) arranged at spaced apart intervals on the outer peripheral edge (11).

7. The noise suppressor (100) of any one of claims 1-4 wherein the noise suppressor (100) further comprises a pin slot (30) disposed on the annular body (10) spaced apart from the resilient member (20).

8. A compressor (1000) having a housing, an inlet of which is provided with a mounting groove (200), wherein a noise inhibitor (100) according to any one of claims 1-7 is provided in the mounting groove (200).

9. The compressor (1000) of claim 8, wherein a first opening (201) is provided on a periphery of the mounting groove (200), the first opening having a third radial dimension (R3) that is greater than the second radial dimension (R2) of the resilient mounting portion (21) to allow mounting of the resilient member (20) to the mounting groove (200) via the first opening (201).

10. The compressor (1000) of claim 9, wherein the peripheral edge of the mounting groove (200) further comprises a second opening (202) arranged spaced apart from the first opening (201) along a circumferential direction (C), the second opening (202) being shaped to at least partially receive the resilient mounting portion (21) to retain the resilient mounting portion (21) in the second opening (202).