CN210118890U

CN210118890U - Outdoor unit of air conditioner

Info

Publication number: CN210118890U
Application number: CN201920875880.5U
Authority: CN
Inventors: 赵紫生
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-02-28
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses an outdoor machine of air-conditioner, outdoor machine of air-conditioner includes: casing, fan subassembly, compressor unit spare, median septum and muffler subassembly. Fan subassembly, compressor unit spare, median septum and muffler subassembly are all established in the casing, and wherein, the median septum is located between fan subassembly and the compressor unit spare, and the muffler subassembly includes muffler body and muffler support, and the muffler body passes through the muffler support to be fixed in the casing. According to the utility model discloses an outdoor machine of air-conditioner fixes the muffler body in the casing through setting up the muffler support, falls the transportation in outdoor machine of air-conditioner, can improve because the muffler body dead weight causes to sink and leads to the problem that the refrigerant pipeline warp or ftracture, improves the operational reliability of outdoor machine of air-conditioner, prolongs the life of outdoor machine of air-conditioner.

Description

Outdoor unit of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioning technique and specifically relates to an air-conditioner outdoor unit is related to.

Background

Some outdoor machines of air conditioner among the correlation technique reduce the noise that compressor work produced through external muffler, and the muffler does not have fixedly in the outdoor machine of air conditioner, is in the suspension state through the refrigerant pipeline, because the self weight of muffler, in outdoor machine of air conditioner transportation or installation, when the muffler takes place to sink the action, probably can make the refrigerant pipeline warp, probably cause the pipeline fracture problem when serious, influence the normal use of outdoor machine of air conditioner, and probably reduce the life of outdoor machine of air conditioner.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an outdoor unit of air-conditioner, outdoor unit of air-conditioner fixes the muffler body in the casing through setting up the muffler support, falls the in-process such as transportation at outdoor unit of air-conditioner, can improve because the muffler body dead weight causes to sink and leads to the problem that the refrigerant pipeline warp or ftracture.

According to the utility model discloses outdoor machine of air-conditioner of first aspect embodiment, include: a housing; the fan assembly is arranged in the shell; a compressor assembly; the compressor assembly is arranged in the shell; the middle partition plate is arranged in the shell and positioned between the fan assembly and the compressor assembly; and the silencer assembly comprises a silencer body and a silencer support, and the silencer body is fixed in the shell through the silencer support.

According to the utility model discloses an outdoor machine of air-conditioner fixes the muffler body in the casing through setting up the muffler support, falls the in-process such as transportation at outdoor machine of air-conditioner, can improve because the muffler body dead weight causes to sink and leads to the problem that the refrigerant pipeline warp or ftracture, improves the operational reliability of outdoor machine of air-conditioner, prolongs the life of outdoor machine of air-conditioner.

In some embodiments, the muffler bracket is fixed to the compressor assembly.

In some embodiments, the compressor assembly includes a compressor body and an accumulator, the muffler bracket being secured to the compressor body.

In some embodiments, the muffler assembly is located on a side of the compressor body proximate the accumulator.

In some embodiments, the compressor assembly includes a compressor body and an accumulator to which the muffler bracket is secured.

In some embodiments, the muffler assembly is located on a side of the accumulator proximate the compressor body.

In some embodiments, the muffler bracket is fixed to the middle partition.

In some embodiments, the outdoor unit further includes a valve plate mounted to the casing, and the muffler bracket is fixed to the casing and/or the valve plate.

In some embodiments, the muffler assembly is provided in plurality, and the fixing positions of the plurality of muffler assemblies are the same or different.

In some embodiments, the muffler bracket comprises: the bracket part is fixed in the machine shell and supports the outer surface of the silencer body; the hoop part is of a curved shape and surrounds the silencer body, and two ends of the hoop part are respectively connected with the support parts, so that the silencer body is clamped between the hoop part and the support parts.

In some embodiments, the bracket portion has two fastening holes, and both ends of the clamping portion are respectively configured as hooks, and the two hooks are respectively correspondingly hooked in the two fastening holes, so that both ends of the clamping portion are respectively connected with the bracket portion.

In some embodiments, the bracket portion includes a body portion supporting an outer surface of the muffler body and two leg portions welded to the compressor assembly, the two leg portions being respectively connected to both sides of the body portion and supporting the body portion in a spaced apart relation from the compressor assembly.

In some embodiments, each of the muffler bodies is secured within the casing by one or more of the muffler brackets.

In some embodiments, the muffler body comprises: the connector pipe comprises an expansion pipe section and connector pipe sections, wherein the connector pipe sections are two and are respectively connected to two ends of the length of the expansion pipe section, and at least one connector pipe section is inserted and matched with the expansion pipe section.

In some embodiments, the interface section that fits into the expanded section has a dampening hole on the portion that fits into the expanded section.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is an internal structure view of an outdoor unit for an air conditioner according to an embodiment of the present invention;

fig. 2 is a plan view of the outdoor unit of the air conditioner shown in fig. 1;

FIG. 3 is an assembly view of a compressor assembly and a muffler assembly according to one embodiment of the present invention;

FIG. 4 is a top view of the mounting assembly shown in FIG. 3;

FIG. 5 is an assembly view of a compressor assembly and a muffler assembly according to another embodiment of the present invention;

FIG. 6 is a top view of the mounting assembly shown in FIG. 3;

fig. 7 is a partial cross-sectional view of a compressor assembly and a muffler assembly according to an embodiment of the present invention;

fig. 8 is a partial cross-sectional view of the muffler body according to fig. 7.

Reference numerals:

an outdoor unit 100 of an air conditioner;

a housing 1; a fan assembly 2;

a compressor assembly 3;

a compressor body 31; a reservoir 32;

a middle partition plate 4;

a muffler assembly 5;

a muffler body 51; an expansion pipe section 511; a connector section 512; a sound deadening hole 5121;

a muffler bracket 52;

a collar portion 521; a hook 5211;

a bracket portion 522; a snap hole 5221; the body portion 522 a; leg portions 522 b;

a valve plate 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

Some outdoor machines of air conditioner among the correlation technique reduce the noise that compressor work produced through external muffler, and the muffler does not have fixedly in the outdoor machine of air conditioner, is in the suspension state through the refrigerant pipeline, because the self weight of muffler, in outdoor machine of air conditioner transportation or installation, when the muffler takes place to sink the action, probably can make the refrigerant pipeline warp, probably cause the pipeline fracture problem when serious, influence the normal use of outdoor machine of air conditioner, and probably reduce the life of outdoor machine of air conditioner. To solve at least one of the above problems, the present invention provides an outdoor unit 100 for an air conditioner.

Hereinafter, an outdoor unit 100 for an air conditioner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1, an outdoor unit 100 for an air conditioner according to an embodiment of the present invention may include: the air conditioner comprises a shell 1, a fan assembly 2, a compressor assembly 3, a middle partition plate 4 and a silencer assembly 5. Fan subassembly 2, compressor unit spare 3, median septum 4 and muffler subassembly 5 all establish in casing 1, and wherein, median septum 4 is located between fan subassembly 2 and the compressor unit spare 3, and muffler subassembly 5 includes muffler body 51 and muffler support 52, and muffler body 51 passes through muffler support 52 to be fixed in casing 1.

From this, according to the utility model discloses outdoor set of air-conditioner 100 fixes muffler body 51 in casing 1 through setting up muffler support 52 for muffler body 1 is no longer in the suspension state, falls at outdoor set of air-conditioner 100 in-process such as transportation, can improve because muffler body 51 dead weight causes to sink and leads to the problem that the refrigerant pipeline warp or ftracture, improves outdoor set of air-conditioner 100's operational reliability, prolongs outdoor set of air-conditioner 100's life.

It should be noted that, according to the utility model discloses muffler assembly 5 is not restricted in the application position in refrigerant system, for example muffler body 51's both ends can be connected with exhaust pipe, return air pipeline, low-pressure valve pipeline etc. in the refrigerant system. Further, the specific structure of the muffler body 51 is not limited as long as the muffler function is satisfied, and the number of the muffler bodies 51 is not limited, and may be at least one or a plurality of bodies, and is not limited herein.

In the present invention, the specific position where the muffler body 51 is fixed in the casing 1 through the muffler bracket 52 may be various, for example, the muffler body 51 may be fixed on the compressor body 31 or the liquid reservoir 32 in the compressor assembly 3 through the muffler bracket 52, or may be fixed on a sheet metal part around the compressor assembly 3, for example, on the casing 1, the middle partition plate 4 or the valve plate 6, and hereinafter, several specific embodiments will be described in detail, but the present invention is not limited to the following embodiments.

As shown in fig. 1, in some embodiments, muffler bracket 52 may be secured to compressor assembly 3. Through fixing muffler support 52 on compressor unit 3 to can install muffler body 51 on compressor unit 3 by muffler support 52, and then can make muffler body 51's installation and dismantlement convenient, and when maintaining outdoor 100 of air-conditioner, at the in-process of opening casing 1, need not to consider the influence of muffler subassembly 5, make the maintenance more convenient.

Generally speaking, the noise of an outdoor unit of an air conditioner is mostly from a compressor assembly, the noise of the compressor assembly is transmitted to the indoor through a refrigerant pipeline, and the noise causes uncomfortable influence to indoor users, and a common solution is to connect a muffler in the refrigerant pipeline externally to reduce the noise transmission of the compressor assembly.

Therefore, according to the utility model discloses outdoor unit 100 of air conditioner, because silencer body 51 passes through silencer support 52 to be fixed in casing 1 for the refrigerant pipeline that links to each other with silencer body 51 rigidity can be fixed in casing 1 through silencer support 52 is indirect. Like this, when muffler bracket 52 is installed on compressor unit 3, the refrigerant pipeline rigidly connected to muffler body 51 is indirectly fixed on compressor unit 3 (such as compressor body 31 or reservoir 32) through muffler bracket 52, thereby improving the resonance phenomenon caused by the vibration of compressor unit 3, and further omitting the supporting structure for supporting the refrigerant pipeline, and omitting the weight block or shockproof adhesive etc. disposed on the refrigerant pipeline, thereby simplifying the structure of outdoor unit 100 of air conditioner, and reducing the cost of outdoor unit 100 of air conditioner.

Furthermore, the inventor has found that, when the outdoor unit 100 is miniaturized, the accommodating space for accommodating the compressor assembly 3 in the casing 1 of the outdoor unit 100 is limited, and the muffler assembly 5 is improperly installed, which may cause the accommodating space in the casing 1 to be compact, and may cause the safety distance between the components to be insufficient, so that the inventor thinks that when the muffler assembly 5 is installed in the casing 1, the safety distance between the components should be satisfied, for example, the following embodiments are included but not limited thereto.

Example one

As shown in fig. 3, the compressor assembly 3 may include a compressor body 31 and an accumulator 32, and a muffler bracket 52 is fixed to the compressor body 31. From this, through fixing muffler support 52 on compressor body 31 to can install muffler body 51 on compressor body 31 by muffler support 52, because compressor body 31's size is great, and then can make muffler support 52's installation convenient and reliable more, and can better improve the resonance phenomenon that the refrigerant pipeline arouses because of compressor unit 3 vibration.

For example, in the particular example shown in fig. 3, the muffler assembly 5 may be located on a side of the compressor body 31 near the accumulator 32. That is, when the muffler assembly 5 is mounted on the compressor body 31, the muffler assembly 5 can be brought close to the accumulator 32. That is, in the axial projection view of the compressor assembly 3, as shown in fig. 4, a connecting line L1 is obtained by connecting the center of the compressor body 31 and the center of the accumulator 32, and a perpendicular line L2 is drawn through the center of the compressor body 31 and is perpendicular to the connecting line L1, a side of the perpendicular line L2 close to the accumulator 32 is a side of the compressor body 31 close to the accumulator 32, and a side of the perpendicular line L2 away from the accumulator 32 is a side of the compressor body 31 away from the accumulator 32.

Therefore, the space utilization rate between the compressor body 31 and the liquid accumulator 32 can be improved, the safety distance between each part cannot be influenced, meanwhile, the directions of the four-way valve component and the refrigerant pipeline are restrained by limited space, and the design gap and the process level are effectively improved.

It is understood that the outdoor unit of the air conditioner may further include a four-way valve component, and the specific structural form of the four-way valve component and the connection relationship between the four-way valve component and the refrigerant pipeline are known to those skilled in the art and are not described herein again.

Example two

As shown in fig. 5, the compressor assembly 3 may include a compressor body 31 and an accumulator 32, and a muffler bracket 52 is fixed to the accumulator 32. Therefore, the silencer bracket 52 is fixed on the liquid storage device 32, so that the silencer body 51 can be installed on the liquid storage device 32 through the silencer bracket 52, and the resonance phenomenon of the refrigerant pipeline caused by the vibration of the compressor assembly 3 can be better improved.

For example, in the particular example shown in fig. 5, the muffler assembly 5 may be located on a side of the accumulator 32 near the compressor body 31. That is, the muffler assembly 5 can also bring the muffler assembly 5 close to the compressor body 31 when the muffler assembly 5 is mounted on the liquid reservoir 32. That is, when the muffler assembly 5 is mounted on the accumulator 32, the muffler assembly 5 can be brought close to the compressor body 31. That is, in the axial projection view of the compressor assembly 3, as shown in fig. 6, a connecting line L1 is obtained by connecting the center of the compressor body 31 and the center of the accumulator 32, and a perpendicular line L3 is drawn through the center of the accumulator 32 and is perpendicular to the connecting line L1, wherein the side of the perpendicular line L3 close to the compressor body 31 is the side of the accumulator 32 close to the compressor body 31, and the side of the perpendicular line L3 far from the compressor body 31 is the side of the accumulator 32 far from the compressor body 31.

Therefore, the space utilization rate between the compressor assembly 3 and the liquid accumulator 32 can be improved, the safety distance between each part cannot be influenced, meanwhile, the directions of the four-way valve component and the refrigerant pipeline are restrained by limited space, and the design gap and the process level are effectively improved.

EXAMPLE III

The muffler bracket 52 can be fixed on the middle partition plate 4, so that the safety distance between the parts can be simply and effectively ensured to be sufficient, the muffler body 1 is not in a suspension state any more, and in the process of dropping and transporting the outdoor unit 100 of the air conditioner and the like, the problem of deformation or cracking of a refrigerant pipeline caused by the sinking of the muffler body 51 due to the self weight can be solved, the working reliability of the outdoor unit 100 of the air conditioner is improved, and the service life of the outdoor unit 100 of the air conditioner is prolonged. And when the outdoor unit 100 of the air conditioner is serviced, since the muffler bracket 52 is fixed to the middle partition 4 in the process of opening the cabinet 1, it is not necessary to consider the influence of the muffler assembly 5, so that the servicing is more convenient.

Example four

As shown in fig. 1, the outdoor unit 100 of an air conditioner may further include a valve plate 6 mounted on the casing 1, and at this time, the muffler bracket 52 may be further fixed on the casing 1 or the middle partition plate 4 and/or the valve plate 6, so that sufficient safety distance between the components may be simply and effectively ensured, and the muffler body 1 is no longer in a suspended state, and in the process of dropping and transporting the outdoor unit 100 of an air conditioner, the problem of deformation or cracking of a refrigerant pipeline due to sinking caused by self weight of the muffler body 51 may be solved, the operational reliability of the outdoor unit 100 of an air conditioner may be improved, and the service life of the outdoor unit 100 of an air conditioner may be. It will be appreciated that the concept of the valve plate 6 is well known to those skilled in the art, i.e. a sheet metal part for mounting a high and low pressure valve, and will not be described in detail here.

In addition, the specific structure of the casing 1 according to the embodiment of the present invention is not limited, and may include, for example, a chassis, a side plate, a front panel, a top plate, and the like, which is not limited herein. In addition, the silencer body 51 can be fixed at different positions according to specific conditions, so that the silencer body 51 is fixed in the casing 1 of the outdoor unit 100 of the air conditioner under the condition that the safety distance between the parts is sufficient, and the design gap and the process level can be improved more effectively.

In addition, when there are a plurality of silencer assemblies 5 disposed in the casing 1 of the outdoor unit 100, each silencer assembly 5 may be designed according to the first to fourth embodiments, and the installation position of each silencer assembly 5 may be the same or different to meet different actual requirements. For example, several muffler assemblies 5 may be installed according to the first embodiment, and several muffler assemblies 5 may be installed according to the second embodiment, and so on, which are not described herein.

In some embodiments, as shown in fig. 6, the muffler bracket 52 may include: a clip portion 521 and a bracket portion 522, the bracket portion 522 being fixed in the cabinet 1 and supporting an outer surface of the muffler body 51; the hoop part 521 is curved and surrounds the muffler body 51; both ends of the clip portion 521 are connected to the bracket portions 522, respectively, so that the muffler body 51 is clamped between the clip portion 521 and the bracket portions 522. Accordingly, the muffler bracket 52 has a simple structure, is easy to process and install, and allows the muffler body 51 to be easily and efficiently mounted in the cabinet 1 of the outdoor unit 100 by the clip portion 521 and the bracket portion 522.

As shown in fig. 6, in some embodiments, the bracket part 522 has two latching holes 5221, both ends of the clip part 521 are respectively configured as hooks 5211, and the two hooks 5211 are respectively and correspondingly hooked in the two latching holes 5221, so that both ends of the clip part 521 are respectively connected to the bracket part 522. That is, the muffler bracket 52 is hooked in the hooking holes 5221 of both sides of the bracket portion 522 by the hooks 5211 of both ends of the hoop portion 521, respectively, to achieve the connection of the hoop portion 521 and the bracket portion 522 and the clamping of the muffler body 51. From this, clamp portion 521 and support portion 522 simple structure, the handling ease, simultaneously, clamp portion 521 and support portion 522 assembly are also easy, and then can save the installation time of clamp portion 521 and support portion 522, improve production efficiency. It should be noted that the connection manner of the clip portion 521 and the bracket portion 522 is not limited to the above example, and for example, the clip portion may be further connected by a bolt, and the like, which is not described herein.

As shown in fig. 6, in some embodiments, the bracket portion 522 may include a body portion 522a and two leg portions 522b, the body portion 522a supports the outer surface of the muffler body 51, the leg portions 522b are welded to the compressor assembly 3, the two leg portions 522b are respectively connected to two sides of the body portion 522a, and the support body portion 522a is spaced apart from the compressor assembly 3, that is, the support body portion 522a and the compressor assembly 3 have a certain spatial distance therebetween without contact.

Therefore, the two leg parts 522b in the bracket part 522 are respectively welded on the compressor component 3, so that the silencer bracket 52 can be more firmly installed, meanwhile, the body part 522a can be supported by the two leg parts 522b, and the body part 522a and the compressor component 3 can be spaced, so that a certain space distance can be reserved between the silencer body 51 and the compressor component 3, and further, the silencer body 51 and the compressor component 3 can have a sufficient safety distance.

The connection relationship between the main body 522a and the leg 522b is not limited, and may be an integral piece, a welded connection piece, or the like. In addition, the leg portion 522b is not limited to be welded to the compressor assembly 3, and may be connected by screws or other means. Further, the structural form of the muffler bracket 52 is not limited to the above example, and may be other forms as long as it can satisfy the requirement of fixing the muffler body 51 in the casing 1, and it is not described herein again.

In an embodiment of the present invention, each muffler body 51 may be fixed inside the casing 1 by one or more muffler brackets 52. Wherein, when one muffler body 51 is fixed using a plurality of muffler brackets 52, the muffler body 51 is more reliably and firmly mounted.

As shown in fig. 7 and 8, in some embodiments, the muffler body 51 may include: expansion pipe section 511 and connector pipe sections 512, wherein the connector pipe sections 512 are two and are respectively connected to two ends of the length of the expansion pipe section 511, and at least one connector pipe section 512 is inserted into the expansion pipe section 511, that is, a part of at least one connector pipe section 512 extends into the expansion pipe section 511. Therefore, when noise is transmitted in the expansion pipe section 511 and the joint pipe section 512, the frequency of the noise can be changed due to sudden change of the cross section in the transmission process, and the noise reduction effect is further improved.

In addition, it can be understood that the larger the inner cavity of the expansion pipe section 511 is, the better the silencing effect is, the expansion pipe section 511 is connected with the refrigerant pipeline through the interface pipe sections 512 at the two ends, when the refrigerant passes through the silencer body 51, the impedance mismatch occurs in the process of flowing through the silencer body 51 through the sudden change of the section in the silencer body 51, so that a part of the sound wave interferes with the original sound wave, and then the sound energy is reduced to radiate indoors, and the purpose of silencing is achieved.

As shown in fig. 8, in some embodiments, a portion of the interface pipe section 512 inserted into the expansion pipe section 511 may have a muffling hole 5121 thereon. That is, the pipe wall of the mouthpiece section 512 inserted into the expansion pipe section 511 may be provided with the muffling hole 5121 for reducing noise, so that the muffling frequency may be changed by providing the muffling hole 5121 in the portion inserted into the expansion pipe section 511, thereby increasing the noise reduction range of the muffler body 51.

Certainly the utility model discloses be not limited to this, the silencer subassembly 5 in the outer machine 100 of air-conditioner can be one also can be a plurality ofly, can be according to the particular case of the outer machine 100 of air-conditioner and decide, for example, under the sufficient condition of safe distance between each spare part of assurance, can be simultaneously at the outer machine 100 of air-conditioner 1 inside fixed a plurality of silencer subassemblies 5 that set up to can improve the noise cancelling effect, increase user comfort level. In addition, the type of the muffler body 51 is not limited thereto, and for example, other forms of mufflers may be used as long as the muffling function of the muffler body 51 in the present application is satisfied, and the details are not described herein.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An outdoor unit for an air conditioner, comprising:

a housing;

the fan assembly is arranged in the shell;

a compressor assembly; the compressor assembly is arranged in the shell;

the middle partition plate is arranged in the shell and positioned between the fan assembly and the compressor assembly; and

the silencer assembly comprises a silencer body and a silencer support, and the silencer body is fixed in the shell through the silencer support.

2. The outdoor unit of claim 1, wherein the muffler bracket is fixed to the compressor assembly.

3. The outdoor unit of claim 2, wherein the compressor assembly includes a compressor body and a reservoir, and the muffler bracket is fixed to the compressor body.

4. The outdoor unit of claim 3, wherein the muffler assembly is located at a side of the compressor body adjacent to the accumulator.

5. The outdoor unit of claim 2, wherein the compressor assembly includes a compressor body and a reservoir, and the muffler bracket is fixed to the reservoir.

6. The outdoor unit of claim 5, wherein the muffler assembly is disposed at a side of the accumulator adjacent to the compressor body.

7. The outdoor unit of claim 1, wherein the muffler bracket is fixed to the middle partition plate.

8. The outdoor unit of claim 1, further comprising a valve plate mounted to the casing, wherein the muffler bracket is fixed to the casing and/or the valve plate.

9. The outdoor unit of claim 1, wherein the silencer assembly is provided in plurality, and the fixing positions of the plurality of silencer assemblies are the same or different.

10. The outdoor unit of any one of claims 1 to 9, wherein the muffler bracket comprises:

a bracket part fixed in the case and supporting an outer surface of the muffler body;

the silencer body is characterized by comprising a hoop part, wherein the hoop part is in a curved shape and surrounds the silencer body, and two ends of the hoop part are respectively connected with the support parts, so that the silencer body is clamped between the hoop part and the support parts.

11. The outdoor unit of claim 10, wherein the bracket part has two fastening holes, and both ends of the clamping part are respectively formed as hooks, and the two hooks are respectively correspondingly hooked to the two fastening holes, so that both ends of the clamping part are respectively connected to the bracket part.

12. The outdoor unit of claim 10, wherein the bracket part includes a body part supporting an outer surface of the muffler body and two leg parts welded to the compressor assembly, the two leg parts being connected to both sides of the body part and supporting the body part to be spaced apart from the compressor assembly.

13. The outdoor unit of claim 10, wherein each of the muffler bodies is fixed in the casing by one or more of the muffler brackets.

14. The outdoor unit of claim 1, wherein the silencer body comprises: the connector pipe comprises an expansion pipe section and connector pipe sections, wherein the connector pipe sections are two and are respectively connected to two ends of the length of the expansion pipe section, and at least one connector pipe section is inserted and matched with the expansion pipe section.

15. The outdoor unit of claim 14, wherein a silencing hole is formed in a portion of the joint pipe section inserted into the expansion pipe section.