KR20230175297A - Silencer assembly and air conditioner - Google Patents

Abstract

In the silencer assembly 300 and the air conditioner 1000, the silencer assembly 300 includes a silencer 100 and a check valve 200. The silencer 100 includes a silencer body 10 and a joint pipe 30 installed at one end of the silencer body 10. The joint pipe 30 directly connects the check valve 200.

Description

Silencer assembly and air conditioner

This application is filed under application number 202110479994. wanted Priority is claimed on the Chinese patent application with application number 202120942934.2, which is incorporated in its entirety into this application.

This application relates to the field of air conditioning technology, and more specifically to silencer assemblies and air conditioners.

In an air conditioner, the silencer and check valve are two components that are generally installed separately. When producing air conditioners, the silencer is usually connected to the check valve through a single independent connector. However, silencers and check valves are usually made of copper, and connectors are also made of copper. A large amount of copper material is consumed in air conditioners, and as copper prices continue to rise, the cost of air conditioners is also increasing significantly.

Various embodiments according to the present application provide a silencer assembly and an air conditioner.

The silencer assembly includes a silencer and a check valve. The silencer includes a silencer body and a joint pipe installed at one end of the silencer body. The joint pipe directly connects the check valve.

In one embodiment, the silencer body is made of stainless steel, the joint pipe is made of copper, and the check valve is made of copper.

In one embodiment, the silencer body is provided with an outlet end. The joint pipe is connected to cover the outside of the outlet end and is welded to the outlet end. One end of the check valve extends into the joint pipe and is directly welded to the joint pipe.

In one embodiment, one end of the check valve extending into the joint pipe abuts a cross section of the outlet end located within the joint pipe.

In one embodiment, a first external step is installed on the outer wall of the outlet end. The first external step is installed along the circumferential direction of the outlet end, and the joint pipe contacts the first external step.

In one embodiment, the length of the outlet end extending into the joint pipe is A, the length of the portion where the check valve extends into the joint pipe is B, and the length of the joint pipe is C. A, B and C satisfy the relationships 1/3C≤A≤2/3C and 1/3C≤B≤2/3C.

In one embodiment, one end of the joint pipe extends into the silencer body. The other end extends from the end of the silencer body. One end of the joint pipe extending from the silencer body is directly welded to the check valve.

In one embodiment, one end of the joint pipe extending from the silencer body forms a flaring end. One end of the check valve is inserted into the flaring end.

In one embodiment, the length of the part where the joint pipe extends into the silencer body is E, and the total length of the silencer body is F. E and F satisfy the relationship E≥1/2F.

In one embodiment, the silencer body has an inlet end. The silencer assembly further includes a first stainless steel pipe. The first stainless steel pipe is directly or indirectly connected to the inlet end.

In one embodiment, an internal step is installed on the inner wall of the inlet end. The first stainless steel pipe extends into the inlet end and is welded to the internal step point. The first stainless steel pipe is directly connected to the inlet end.

In one embodiment, the silencer assembly includes a connecting member made of copper. The copper connecting member includes a first copper sleeve connected to the inlet end, and a second copper sleeve connected to the first stainless steel pipe. The first copper sleeve is welded to the second copper sleeve. The first stainless steel pipe is indirectly connected to the inlet end by the copper connecting member.

In one embodiment, the first copper sleeve is connected to cover the outside of the inlet end. The second copper sleeve is connected to cover the outside of one end of the first stainless steel pipe. The first copper sleeve is connected to cover the outside of the second copper sleeve.

In one embodiment, the wall thickness of the first copper sleeve is greater than the wall thickness of the second copper sleeve. When the first copper sleeve and the second copper sleeve are welded, the welding torch position is biased toward the first copper sleeve.

In one embodiment, the silencer assembly further includes a second stainless steel pipe. A third copper sleeve is connected to one end of the second stainless steel pipe. The third copper sleeve is connected to one end of the check valve remote from the muffler.

The air conditioner includes the silencer assembly described above.

Details of one or more embodiments according to the present application are provided in the accompanying drawings and description below. Other features, objects and advantages of the present application are clearly described through the specification, accompanying drawings and claims.

To better describe and interpret embodiments and/or examples of the invention disclosed herein, reference may be made to one or more accompanying drawings. Additional details or examples used in the accompanying drawing description should not be construed as limiting the scope of any of the disclosed invention, the presently described embodiments and/or examples and the most preferred forms of the invention as currently understood.
1 is a partial cross-sectional view of a silencer assembly according to an embodiment of the present application.
Figure 2 is a partial enlarged view of point M in Figure 1.
Figure 3 is a partial enlarged view of point N in Figure 1.
Figure 4 is a partial cross-sectional view of a silencer assembly according to another embodiment of the present application.
Figure 5 is a partial enlarged view of point M' in Figure 1.
Figure 6 is a partial enlarged view of point N' in Figure 1.
Figure 7 is a structural diagram of an air conditioner according to an embodiment of the present application.

In the prior art, the silencer and check valve are two components that are generally installed separately. When producing air conditioners, the silencer is usually connected to the check valve through a single independent connector. However, silencers and check valves are usually made of copper, and connectors are also made of copper. A large amount of copper material is consumed in air conditioners, and as copper prices continue to rise, the cost of air conditioners is also increasing significantly.

[Example 1]

1 to 3, the present application provides a silencer assembly 300. The silencer assembly 300 includes a silencer 100 and a check valve 200. The silencer 100 includes a silencer body 10 and a joint pipe 30 installed at one end of the silencer body 10, and the joint pipe 30 is directly connected to the check valve 200. In this way, the silencer 100 and the check valve 200 are directly connected, which is the same as eliminating the connector of the prior art. This saves materials and thus significantly reduces production costs. Additionally, in the prior art, the silencer connects the check valve through a connector. Therefore, there are two welded joints between the silencer and the check valve. One is a welded joint between the silencer and the connector, and the other is a welded joint between the connector and the check valve. In the present application, since the silencer 100 and the check valve 200 are directly connected, only one welded joint exists between the silencer 100 and the check valve 200. That is, compared to the prior art, the silencer assembly 300 of the present application has reduced welding joints. If there are a relatively large number of welded joints, they must be welded multiple times during the processing process, which complicates the process and reduces production efficiency. Additionally, leakage can easily occur at the welding point, so if there are multiple weld joints, the possibility of leakage occurring is relatively high. Since the silencer assembly 300 of the present application has reduced welding joints, the processing process is simplified and production efficiency is increased. Additionally, the possibility of leakage at the welding point is reduced, improving the connection reliability between the silencer 100 and the check valve 200. Additionally, since one connecting member is omitted, the overall length of the silencer assembly 300 is shortened, which helps save space. Therefore, it is easy to mount the silencer assembly 300 to an air conditioner.

Additionally, the silencer body 10 is made of stainless steel. The joint pipe 30 is made of copper, and the check valve 200 is made of copper. Stainless steel material has excellent rigidity and is inexpensive. Therefore, by adopting stainless steel material for the silencer body 10, the cost of the silencer assembly 300 can be greatly reduced. If the joint pipe 30 is made of copper, it is easy to directly connect the silencer 100 and the check valve 200 made of copper.

The silencer body 10 includes a main body portion 13. Both ends of the main body 13 are necked to form an inlet end 12 and an outlet end 11, respectively. The inner diameters of the inlet end 12 and the outlet end 11 are both smaller than the inner diameter of the main body 13. After the refrigerant medium flows into the main body portion 13 from the inlet end 12, the inner diameter increases, so the flow rate of the refrigerant medium decreases. In other words, since it acts as a buffer to the refrigerant medium, noise generated by the flow of the refrigerant medium can be reduced.

The joint pipe 30 is connected to the outlet end 11. That is, the check valve 200 is connected to one side of the outlet end 11 of the silencer body 10. In this way, by installing the check valve 200, the refrigerant medium can be allowed to flow only from the silencer 100 toward the check valve 200, rather than flowing from the check valve 200 toward the silencer 100. In this embodiment, the joint pipe 30 is connected to cover the outside of the outlet end 11 and is welded to the outlet end 11. One end of the check valve 200 extends into the joint pipe 30 and is directly welded to the joint pipe 30. The joint pipe 30 is connected to cover the outside of the outlet end 11. That is, the outlet end 11 extends into the joint pipe 30. The cross section of the outlet end 11 located within the joint pipe 30 forms a position limiting surface 112. The position limiting surface 112 may limit the length of the check valve 200 extending into the joint pipe 30. Therefore, assembly of the check valve 200 before welding becomes very easy. In addition, one end of the check valve 200 extending into the joint pipe 30 contacts the position limiting surface 112 of the outlet end 11. In this way, the connection between the silencer 100 and the check valve 200 becomes solid.

A first external step 111 is installed on the outer wall of the outlet end 11. The first external step 111 is installed along the circumferential direction of the outlet end 11. The joint pipe 30 is in contact with the first external step 111. In this way, by installing the first external step 111 to limit the assembly position of the joint pipe 30, assembly of the joint pipe 30 and the silencer body 10 before welding is greatly facilitated.

In this embodiment, the silencer body 10 is made of stainless steel, the joint pipe 30 is made of copper, and the check valve 200 is made of copper. Therefore, the silencer body 10 and the joint pipe 30 are welded by the in-furnace brazing method, and the joint pipe 30 and the check valve 200 are welded by the flame brazing method. When producing and processing the silencer assembly 300, the joint pipe 30 is first assembled to one end of the silencer body 10. Next, in-furnace soldering is performed on the silencer body 10 and the joint pipe 30 to obtain the silencer 100. Afterwards, the joint pipe 30 of the silencer 100 is again assembled with one end of the check valve 200. Next, flame soldering is performed on the joint pipe 30 and the check valve 200.

In one embodiment, referring to Figure 2, the length of the outlet end 11 extending into the joint pipe 30 is A, and the length of the portion where the check valve 200 extends into the joint pipe 30 is B. and the length of the joint pipe 30 is C. A, B and C satisfy the relationships 1/3C≤A≤2/3C and 1/3C≤B≤2/3C. In this way, it was ensured that a constant overlap length was provided between the outlet end 11 and the joint pipe 30, and a constant overlap length was ensured between the check valve 200 and the joint pipe 30. Therefore, the connection strength between the outlet end 11 and the joint pipe 30 was ensured to be relatively high, and the connection strength between the check valve 200 and the joint pipe 30 was ensured to be relatively high. Additionally, the structural strength of the silencer assembly 300 was ensured.

Additionally, the silencer assembly 300 further includes a first stainless steel pipe 40. The first stainless steel pipe 40 is directly connected to the inlet end 12. Alternatively, the first stainless steel pipe 40 is indirectly connected to the inlet end 12 by a copper connecting member. Hereinafter, the case where the first stainless steel pipe 40 is indirectly connected to the inlet end 12 by the copper connecting member 90 will be described in detail. The case where the first stainless steel pipe 40 is directly connected to the inlet end 12 will be described in detail in Example 2.

Referring to FIG. 3, in one embodiment, the first stainless steel pipe 40 is indirectly connected to the inlet end 12 by a connecting member 90 made of copper. Specifically, the copper connection member 90 includes a first copper sleeve 60 connected to the inlet end 12, and a second copper sleeve 70 connected to the first stainless steel pipe 40. The first copper sleeve 60 is welded to the second copper sleeve 70. In this way, the silencer body 10 is first welded together with the first copper sleeve 60, and the first stainless steel pipe 40 is welded together with the second copper sleeve 70. Afterwards, the first copper sleeve 60 is welded together with the second copper sleeve 70. Through this, the connection between the silencer body 10 and the first stainless steel pipe 40 is realized. The silencer body 10 and the first copper sleeve 60 are welded using in-furnace soldering. The first stainless steel pipe 40 and the second copper sleeve 70 are also welded by in-furnace soldering. The first copper sleeve 60 and the second copper sleeve 70 are welded using flame soldering. Since the first copper sleeve 60 and the second copper sleeve 70 are installed, first the silencer body 10 and the first copper sleeve 60 are brazed in the furnace, and then the first stainless steel pipe 40 and the second copper sleeve are soldered. (70) can be soldered in the furnace. The length of the pipe member entering the soldering furnace is relatively short, so multiple pipe members can be soldered in the furnace simultaneously. This makes operation simpler and helps improve production efficiency. In addition, the silencer body 10 and the first stainless steel pipe 40 are connected through a first copper sleeve 60 and a second copper sleeve 70. The first copper sleeve 60 and the second copper sleeve 70 can be welded by flame soldering. When the silencer body 10 needs to be replaced, the silencer body 10 can be taken out from the air conditioner by simply breaking the connection between the first copper sleeve 60 and the second copper sleeve 70. Afterwards, simply weld the new silencer body (10) to the second copper sleeve (70). Therefore, it is very convenient to replace the silencer body 10 in the air conditioner by installing the copper connecting member 90.

Additionally, the first copper sleeve 60 is connected to cover the outside of the inlet end 12. Specifically, a second external step 122 is installed on the outer wall of the entrance end 12. The second external step 122 is installed to limit the assembly position of the first copper sleeve 60. Therefore, assembly between the first copper sleeve 60 and the inlet end 12 of the silencer body 10 before welding becomes very easy. The second copper sleeve 70 is connected to cover the outside of one end of the first stainless steel pipe 40, making assembly easy. The first copper sleeve 60 is connected to cover the outside of the second copper sleeve 70. Therefore, it is very easy to perform flame soldering between the first copper sleeve 60 and the second copper sleeve 70.

When flame soldering is performed on the first copper sleeve 60 and the second copper sleeve 70, the position of the welding torch is biased toward the first copper sleeve 60. Therefore, heat can be transferred to the first stainless steel pipe 40 through the second copper sleeve 70. Through this, overheating can be prevented and the welded joint between the silencer body 10 and the first copper sleeve 60 can be prevented from being damaged.

The wall thickness of the first copper sleeve 60 is greater than the wall thickness of the second copper sleeve 70. Therefore, the structural strength of the connection point between the silencer body 10 and the first stainless steel pipe 40 can be improved. The length of the second copper sleeve 70 extending into the first copper sleeve 60 and the length of the inlet end 12 extending into the second copper sleeve 70 are checked with the outlet end 11 in FIG. The design relationship of the length by which each valve 200 extends into the joint pipe 30 may be referred to.

Referring to FIG. 1 , the silencer assembly 300 further includes a second stainless steel pipe 50. A third copper sleeve 80 is connected to one end of the second stainless steel pipe 50. The third copper sleeve 80 is connected to one end of the check valve 200 that is far from the silencer 100. By installing the second stainless steel pipe 50, it is easy to connect the silencer assembly 300 and other pipe members in the air conditioner. In this embodiment, the third copper sleeve 80 is installed to cover the outside of the second stainless steel pipe 50. One end of the third copper sleeve 80 extends into the check valve 200 and is welded to the check valve 200. When producing and processing the silencer assembly 300, in-furnace brazing is first performed on the third copper sleeve 80 and the second stainless steel pipe 50, and the third copper sleeve 80 is connected to the second stainless steel pipe 50. ) Weld at one end. Thereafter, the third copper sleeve 80 is welded to one end of the check valve 200 that is far from the silencer 100 using the flame soldering method again.

[Example 2]

4 to 6, the present application provides a silencer assembly 300. The silencer assembly 300 includes a silencer 100 and a check valve 200. The silencer 100 includes a silencer body 10 and a joint pipe 30 installed at one end of the silencer body 10. One end of the joint pipe 30 extends into the silencer body 10, and the other end extends from the end of the silencer body 10. One end of the joint pipe 30 extending from the silencer body 10 is directly welded to the check valve 200.

The joint pipe 30 and the check valve 200 are directly welded, that is, the silencer 100 and the check valve 200 are directly welded. Since this corresponds to eliminating the connector in the prior art, materials can be saved and production costs can be greatly reduced. Additionally, in the prior art, the silencer connects the check valve through a connector. Therefore, there are two welded joints between the silencer and the check valve. One is a welded joint between the silencer and the connector, and the other is a welded joint between the connector and the check valve. In the present application, since the silencer 100 and the check valve 200 are directly connected, only one welded joint exists between the silencer 100 and the check valve 200. That is, compared to the prior art, the silencer assembly 300 of the present application has reduced welding joints. If there are a relatively large number of welded joints, they must be welded multiple times during the processing process, which complicates the process and reduces production efficiency. Additionally, leakage can easily occur at the welding point, so if there are multiple weld joints, the possibility of leakage occurring is relatively high. Since the silencer assembly 300 of the present application has reduced welding joints, the processing process is simplified and production efficiency is increased. In addition, the possibility of leakage at the welding point is low, so the connection reliability between the silencer 100 and the check valve 200 is high. Additionally, since one connecting member is omitted, the overall length of the silencer assembly 300 is shortened, which helps save space. Therefore, it is easy to mount the silencer assembly 300 to an air conditioner.

One end of the joint pipe 30 extends into the silencer body 10, thereby increasing the flow path of the refrigerant medium within the silencer body 10. Therefore, it acts as a buffer against the flow of the refrigerant medium. Therefore, it helps reduce noise caused by the refrigerant medium flow, and allows the silencer body 10 to have a better noise effect.

The silencer body 10 includes a main body portion 13. Both ends of the main body 13 are necked to form an inlet end 12 and an outlet end 11, respectively. The inner diameters of the inlet end 12 and the outlet end 11 are both smaller than the inner diameter of the main body 13. After the refrigerant medium flows into the main body portion 13 from the inlet end 12, the inner diameter increases, so the flow rate of the refrigerant medium decreases. In other words, since it acts as a buffer to the refrigerant medium, noise generated by the flow of the refrigerant medium can be reduced.

In the present application, the joint pipe 30 is connected to the outlet end 11 of the silencer body 10. That is, the check valve 200 is connected to one side of the outlet end 11 of the silencer body 10. By installing the check valve 200, the refrigerant medium can be allowed to flow only from the silencer 100 toward the check valve 200, rather than flowing from the check valve 200 toward the silencer 100. In addition, although one end of the joint pipe 30 extends into the silencer body 10, the refrigerant medium flowing into the silencer body 10 does not flow out directly from the outlet end 11. This is because the necking of the inlet end 12 acts as a flow guide for the refrigerant medium. The refrigerant medium first flows toward the outlet end (11), is bounced by the inner wall of the silencer body (10), and then flows toward one end of the joint pipe (30) extending into the silencer body (10). Finally, it flows out of the silencer 100 through the joint pipe 30. As shown in FIG. 4, the curve with the arrow in the figure shows the flow path of the refrigerant medium within the silencer body 10. In this way, the flow path of the refrigerant medium within the silencer body 10 increases, thereby providing a buffering effect to the flow of the refrigerant medium. Therefore, it helps reduce noise caused by the refrigerant medium flow and allows the silencer 100 to have a better noise effect.

In addition, the length of the part where the joint pipe 30 extends into the silencer body 10 is E, and the total length of the silencer body 10 is F. E and F satisfy the relationship E≥1/2F. The longer the length of the joint pipe 30 extending into the silencer body 10, the longer the flow path of the refrigerant medium within the silencer body 10. The buffering effect on the refrigerant medium becomes stronger and the noise effect becomes excellent. In this embodiment, if E≥1/2F, the flow path of the refrigerant medium in the silencer body 10 is relatively long, so that the silencer body 10 has a relatively excellent noise effect.

One end of the joint pipe 30 extending from the silencer body 10 forms a flaring end 31. One end of the check valve 200 is inserted into the flaring end 31. One end of the joint pipe 30 is processed to form a flaring end 31, and the flaring end 31 is used to match one end of the check valve 200 to connect the check valve 200 and the joint pipe 30. there is. This eliminates the need to machine the end of the check valve 200. The process of flaring one end of the joint pipe 30 is relatively simple and easy to process. This helps improve the production efficiency of the silencer assembly 300.

Additionally, the silencer body 10 is made of stainless steel. The joint pipe 30 is made of copper, and the check valve 200 is made of copper. Stainless steel material has excellent rigidity and is inexpensive. Therefore, by adopting stainless steel material for the silencer body 10, the cost of the silencer assembly 300 can be greatly reduced. If the joint pipe 30 is made of copper, it is easy to directly connect the silencer 100 and the check valve 200 made of copper.

The silencer assembly 300 further includes a first stainless steel pipe 40. The first stainless steel pipe 40 is directly connected to the inlet end 12. Alternatively, the first stainless steel pipe 40 is indirectly connected to the inlet end 12 by a copper connecting member 90 (refer to the above-mentioned details in detail). Hereinafter, the case where the first stainless steel pipe 40 is directly connected to the inlet end 12 will be described in detail.

Referring to Figure 6, in one embodiment, the first stainless steel pipe 40 is directly connected to the inlet end 12. The silencer body 10 is made of stainless steel, and the first stainless steel pipe 40 is also made of stainless steel. Therefore, welding between the first stainless steel pipe 40 and the inlet end 12 is welding between stainless steel and stainless steel. Therefore, the first stainless steel pipe 40 and the inlet end 12 can be welded using an in-furnace soldering method. The first stainless steel pipe 40 is directly connected to the inlet end 12. This has a simple welding method and is easy to process.

Additionally, an internal step 121 is installed on the inner wall of the entrance end 12. The first stainless steel pipe 40 extends within the inlet end 12 and is welded to the internal step 121. An internal step 121 was installed to limit the length of the first stainless steel pipe 40 extending into the inlet end 12. This greatly facilitates the assembly of the first stainless steel pipe 40 before welding and helps simplify the processing process.

Referring to FIG. 4 , the silencer assembly 300 further includes a second stainless steel pipe 50. A third copper sleeve 80 is connected to one end of the second stainless steel pipe 50. The third copper sleeve 80 is connected to one end of the check valve 200 that is far from the silencer 100. By installing the second stainless steel pipe 50, it is easy to connect the silencer assembly 300 and other pipe members in the air conditioner. In this embodiment, the third copper sleeve 80 is installed to cover the outside of the second stainless steel pipe 50. One end of the third copper sleeve 80 extends into the check valve 200 and is welded to the check valve 200. When producing and processing the silencer assembly 300, in-furnace brazing is first performed on the third copper sleeve 80 and the second stainless steel pipe 50, and the third copper sleeve 80 is connected to the second stainless steel pipe 50. ) Weld at one end. Thereafter, the third copper sleeve 80 is welded to one end of the check valve 200 that is far from the silencer 100 using the flame soldering method again.

Referring to FIG. 7, the present application further provides an air conditioner 1000 including a silencer assembly 300 according to any of the above-described embodiments. The air conditioner 1000 further includes a compressor 400, a condenser 500, a throttle device 600, and an evaporator 700. The compressor 400, condenser 500, throttle device 600, and evaporator 700 are sequentially connected by a pipeline. The silencer assembly 300 is installed in the pipeline between the condenser 500 and the throttle device 600.

In the air conditioner 1000, the silencer 100 and the check valve 200 are directly connected. This corresponds to eliminating the connector in the prior art, so production costs can be greatly reduced. Additionally, since the silencer 100 and the check valve 200 are directly connected, only one welded joint exists between the silencer 100 and the check valve 200. That is, compared to the prior art, the silencer assembly 300 of the present application has reduced welding joints. In this way, not only has the processing process been simplified and production efficiency has improved, but the possibility of leakage at the weld point has been reduced, thereby improving the reliability of the connection between the silencer 100 and the check valve 200. Additionally, since one connecting member is omitted, the overall length of the silencer assembly 300 is shortened, which helps save space. Therefore, it is easy to mount the silencer assembly 300 to the air conditioner 1000.

The technical features of the above-described embodiments can be arbitrarily combined. For the sake of concise description, all possible combinations of technical features according to the above-described embodiments have not been described, but as long as there is no contradiction in the combination of technical features, all of them should be considered within the scope described in the present invention.

The above-described embodiments represent various embodiments of the present application and the description is relatively specific and detailed, but should not be understood as limiting the scope of the patent application. It should be noted that a person skilled in the art to which the present invention pertains may make modifications and improvements without departing from the spirit of the present application, and these all fall within the protection scope of the present application. Therefore, the scope of protection of the present application patent is based on the appended claims.

Drawing symbols: 300-silencer assembly, 100-silencer, 200-check valve, 10-silencer body, 11-outlet end, 111-first external step, 112-position limiting surface, 12-inlet end, 121-internal step, 122-2nd external step, 13-main body, 30-joint pipe, 40-1st stainless steel pipe, 50-2nd stainless steel pipe, 60-1st copper sleeve, 70-2nd copper sleeve, 80-3rd copper Sleeve, 90 - connecting member made of copper, 400 - compressor, 500 - condenser, 600 - throttle device, 700 - evaporator, 1000 - air conditioner.

Claims (16)

In the silencer assembly,
A silencer assembly comprising a silencer and a check valve, wherein the silencer includes a silencer body and a joint pipe installed at one end of the silencer body, and the joint pipe directly connects the check valve. According to paragraph 1,
A silencer assembly wherein the silencer body is made of stainless steel, the joint pipe is made of copper, and the check valve is made of copper. According to paragraph 1,
The silencer body is provided with an outlet end, the joint pipe is connected to cover the outside of the outlet end and welded to the outlet end, and one end of the check valve extends into the joint pipe and is directly welded to the joint pipe, Silencer assembly. According to paragraph 3,
A silencer assembly, wherein one end of the check valve extending into the joint pipe abuts a cross section of the outlet end located within the joint pipe. According to paragraph 3,
A first external step is installed on the outer wall of the outlet end, the first external step is installed along a circumferential direction of the outlet end, and the joint pipe abuts the first external step. According to paragraph 3,
The length of the outlet end extending into the joint pipe is A, the length of the portion where the check valve extends into the joint pipe is B, the length of the joint pipe is C, and A, B and C are expressed in the relationship 1/ Silencer assembly satisfying 3C≤A≤2/3C and 1/3C≤B≤2/3C. According to paragraph 1,
One end of the joint pipe extends into the silencer body, the other end extends from the end of the silencer body, and one end of the joint pipe extending from the silencer body is directly welded to the check valve. A silencer assembly. In clause 7,
A silencer assembly, wherein one end of the joint pipe extending from the silencer main body forms a flaring end, and one end of the check valve is inserted into the flaring end. In clause 7,
The length of the portion where the joint pipe extends into the silencer body is E, the total length of the silencer body is F, and E and F satisfy the relationship E≥1/2F. According to paragraph 1,
The silencer body has an inlet end, and the silencer assembly further includes a first stainless steel pipe, and the first stainless steel pipe is directly or indirectly connected to the inlet end. According to clause 10,
An internal step is installed on the inner wall of the inlet end, the first stainless steel pipe extends into the inlet end and welded to the internal step, and the first stainless steel pipe is directly connected to the inlet end. . According to clause 10,
The silencer assembly includes a connecting member made of copper, and the connecting member made of copper includes a first copper sleeve connected to the inlet end, and a second copper sleeve connected to the first stainless steel pipe, and the first copper sleeve is A silencer assembly welded to the second copper sleeve, and the first stainless steel pipe is indirectly connected to the inlet end by the copper connecting member. According to clause 12,
The first copper sleeve is connected to cover the outside of the inlet end, and the second copper sleeve is connected to cover the outside of one end of the first stainless steel pipe, and the first copper sleeve is connected to the outside of the second copper sleeve. A silencer assembly connected to cover the outside. According to clause 12,
The wall thickness of the first copper sleeve is greater than the wall thickness of the second copper sleeve, and the welding torch position is biased toward the first copper sleeve when the first copper sleeve and the second copper sleeve are welded. assembly. According to paragraph 1,
The silencer assembly further includes a second stainless steel pipe, a third copper sleeve is connected to one end of the second stainless steel pipe, and the third copper sleeve is connected to an end of the check valve far from the silencer. assembly. An air conditioner, characterized in that it comprises a silencer assembly according to any one of claims 1 to 15.