Silencer and air conditioner having same

Abstract

A silencer including a cylindrical body (10), the cylindrical body (10) has a chamber (11) inside, a first opening (121) and a second opening (141) are formed at both ends of the cylindrical body (10), the first opening (121) and the second opening (141) are in communication with each other via the chamber (11), the silencer further includes a seal cover (20), the seal cover (20) is located at one end of the second opening (141) in the cylindrical body (10) to cover the second opening (141), and the silencer is provided separately from the seal cover (20) and the cylindrical body (10), and an air conditioner having the silencer. The air conditioner includes a compressor and the above silencer connected to the compressor.

Description

[Technical field]

[0001] Related Applications This application claims priority to a Chinese patent application filed on April 30, 2021, bearing application number 202120938807.5 and titled "Muffler and air conditioner having the same," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of cooling, and in particular to a silencer and an air conditioner having the same. [Background technology]

[0003] The principle of a silencer is that for airflow piping involving noise propagation, noise reduction devices such as piping with sound absorbing liners and elbow connectors, or piping that utilizes abrupt changes in cross-sectional area and other acoustic impedance discontinuities, can be used to attenuate or reflect the noise within the piping.

[0004] The cylinder of the related muffler is usually manufactured by a one-piece stretch forming method, but the length of the cylinder is relatively long, which increases the difficulty of stretching and makes it difficult to form. Summary of the Invention

[0005] In view of this, and with respect to the above technical problems, the present application provides a silencer that is easy to process.

[0006] In order to solve the above technical problems, the present application provides the following technical aspects. A silencer including a cylindrical body, the cylindrical body having a chamber inside, a first opening and a second opening formed at both ends of the cylindrical body, the first opening and the second opening communicating with each other via the chamber, the silencer further including a seal cover located at one end of the second opening in the cylindrical body to cover the second opening, and the seal cover and the cylindrical body being provided separately.

[0007] It can be seen that by providing the seal cover and the cylindrical body separately in the present application, the processing process of the present application is simpler and easier to mold than the conventional method of forming the cylindrical body by integral stretch molding.

[0008] In one embodiment, there is a transition fit between the seal cover and the barrel.

[0009] It can be seen that the transition fit between the seal cover and the barrel enhances the connection reliability and sealing performance between the seal cover and the barrel.

[0010] In one embodiment, the muffler further includes a connecting pipe, and a flow port is drilled in the side wall of the cylindrical body and engaged with the connecting pipe, and the connecting pipe is communicated with the chamber through the flow port.

[0011] It will be appreciated that the provision of a connecting tube allows coolant to flow into or out of the chamber through the connecting tube.

[0012] In one embodiment, the inner edge of the flow port extends toward the connecting pipe to form an outwardly expanded flange, which fits onto the connecting pipe.

[0013] It can be seen that the provision of the flange increases the contact area between the connecting pipe and the cylindrical body, improving the connection reliability between the connecting pipe and the cylindrical body.

[0014] In one embodiment, the depth to which the connecting pipe penetrates into the cylindrical body is defined as H, and H satisfies the relationship H≧4 mm.

[0015] It can be understood that if the insertion depth is too shallow, the reliability of the connection between the connecting pipe and the cylindrical body will decrease, and there is a possibility that the connecting pipe may fall off during swinging, causing an accident.

[0016] In one embodiment, the connecting pipe is provided at one end remote from the flow port with a first sleeve, which is used to connect a copper pipe in a cooling system.

[0017] It can be seen that by providing the first sleeve, the first sleeve acts as a joint connecting the connecting pipe and the copper pipe in the cooling system, thereby enhancing the connection performance and making the welding effect better.

[0018] In one embodiment, a second sleeve is connected to one end of the barrel adjacent to the first opening, the second sleeve being used to connect a copper tube in a cooling system.

[0019] It can be seen that by providing the second sleeve, the second sleeve acts as a joint connecting the connecting pipe and the copper pipe in the cooling system, thereby enhancing the connection performance and making the welding effect better.

[0020] In one embodiment, the first sleeve and / or the second sleeve are copper tubing.

[0021] In one embodiment, the barrel is provided with a limiting step at one end adjacent to the first opening, and the second sleeve can abut against the limiting step.

[0022] It can be seen that the position at which the second copper sleeve is attached to the cylindrical body is limited by providing a limiting step.

[0023] In one embodiment, the cylinder includes a connection segment, a taper segment, and a main body segment connected in sequence, a first opening is drilled in the connection segment, and a second opening is drilled at one end of the main body segment adjacent to the seal cover, and the thickness of the connection segment is defined as t1, the thickness of the taper segment is defined as t2, and the thickness of the main body segment is defined as t3, where t1, t2, and t3 satisfy the relationship t1>t3>t2.

[0024] The present application further provides the following technical aspects. The air conditioner includes a compressor and a silencer connected to the compressor.

[0025] Compared with the related art, the silencer provided in the present application has a simpler processing process and is easier to mold by providing a seal cover and a cylindrical body separately, compared with the conventional integral stretch molding method for forming the cylindrical body. [Brief description of the drawings]

[0026] [Figure 1] FIG. 2 is a structural schematic diagram of a cylinder provided in the present application. [Diagram 2] FIG. 2 is a structural schematic diagram of the muffler provided in the present application.

[0027] In the drawings, the meanings of the symbols are as follows: 100 silencer, 10 cylinder, 11 chamber, 12 connection segment, 121 first opening, 122 second sleeve, 1221 limiting protrusion, 123 limiting step, 13 tapered segment, 14 main body segment, 141 second opening, 142 flow port, 143 flange, 20 seal cover, 21 extension portion, 30 connection pipe, 31 first segment, 311 positioning protrusion, 32 second segment, 321 first sleeve. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, the technical aspects of the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, but it is clear that the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. All other embodiments that a person skilled in the art can obtain based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0029] It should be explained that when an assembly is referred to as being "mounted" to another assembly, it may be mounted directly to the other assembly or there may be intervening assemblies present. When an assembly is referred to as being "mounted" to another assembly, it may be mounted directly to the other assembly or there may be intervening assemblies present at the same time. When an assembly is referred to as being "secured" to another assembly, it may be secured directly to the other assembly or there may be intervening assemblies present at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. Herein, the terms used in the specification of this application are merely intended to describe specific embodiments and are not intended to limit the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] Referring to FIG. 1 and FIG. 2, the present application provides a silencer 100 applied to an air conditioner, in which the silencer 100 is installed in the air conditioner to play the role of mitigation and pressure reduction, and achieve the effect of silencing.

[0032] Specifically, the silencer 100 includes a cylindrical body 10, has a chamber 11 inside the cylindrical body 10, and has a first opening 121 and a second opening 141 drilled at both ends of the cylindrical body 10, the first opening 121 and the second opening 141 communicating with each other via the chamber 11, and the silencer 100 further includes a seal cover 20, which is located at one end of the second opening 141 in the cylindrical body 10 to cover the second opening 141, and is provided separately from the cylindrical body 10.

[0033] It should be noted that the cylinder of the related muffler is usually manufactured by one-piece stretch molding, but the length of the cylinder is relatively long, which increases the difficulty of stretching and is difficult to mold. In this embodiment, the seal cover 20 and the cylinder 10 are provided separately, so that the processing process of the present application is simpler and easier to mold than the conventional one-piece stretch molding method for forming the cylinder.

[0034] 1, the barrel 10 includes a connection segment 12, a taper segment 13, and a body segment 14. The taper segment 13 is located between the connection segment 12 and the body segment 14, and both ends of the taper segment 13 are connected to the connection segment 12 and the body segment 14, respectively. A first opening 121 is formed in the connection segment 12, and a second opening 141 is formed in one end of the body segment 14 remote from the taper segment 13.

[0035] It should be noted that the vertical distance from the taper segment 13 to the axis of the cylinder 10 gradually increases along the direction from the connection segment 12 to the main body segment 14. That is, the connection segment 12 is connected to the small diameter end of the taper segment 13, the main body segment 14 is connected to the large diameter end of the taper segment 13, and the diameters of the connection segment 12 and the main body segment 14 are the same everywhere. That is, in the process of the refrigerant entering the main body segment 14 with a relatively large diameter from the connection segment 12 with a relatively small diameter, the flow area is increased, which can effectively relax the refrigerant and further play a role in well attenuating the high / low frequency noise generated by the refrigerant.

[0036] It should be noted that the space surrounded by the cylindrical body 10 is collectively referred to as the chamber 11, and the inlet and outlet are located at both ends of the cylindrical body 10, but the inlet and outlet are also included in the chamber 11.

[0037] Optionally, in this embodiment, the cylinder 10 uses stainless steel material, but of course in other embodiments, the cylinder 10 may use other materials such as copper or aluminum, which are not limited here.

[0038] Furthermore, if the thickness of the connection segment 12 is defined as t1, the thickness of the tapered segment 13 as t2, and the thickness of the main body segment 14 as t3, t1, t2, and t3 satisfy the relation t1>t3>t2.

[0039] It should be explained that the whole process of processing the tube 10 is to start from the connection part between the main body segment 14 and the connecting segment 12, pull toward the connecting segment 12, and pull to the tail of the connecting segment 12 to reduce the diameter. The thickness of the connecting segment 12 is increased to a certain extent by the processing step of reducing the diameter, the thickness of the tapered segment 13 is reduced by pulling, and the thickness of the main body segment 14 remains unchanged, so that the relationship of the thickness of the connecting segment 12, the tapered segment 13 and the main body segment 14 is t1>t3>t2.

[0040] Since the connection segment 12 needs to be welded to the copper pipe in the air conditioner through the second sleeve 122, it can be understood that in order to enhance the reliability of the weld and the strength of the structure, the connection segment 12 needs to have a thicker wall thickness than the other parts of the tube 10. As for the main body segment 14, since the main body segment 14 is used for refrigerant relaxation and sound deadening, the wall thickness of the main body segment 14 also needs to be thicker than the wall thickness of the tapered segment 13.

[0041] 2, an extension portion 21 is formed in the seal cover 20 in a direction toward the cylindrical body 10. The extension portion 21 is tightly attached to the side wall of the cylindrical body 10. Providing the extension portion 21 strengthens the sealing performance of the portion where the seal cover 20 covers the second opening 141, and prevents the refrigerant from leaking from the gap where the seal cover 20 and the cylindrical body 10 are connected, thereby reducing the leakage rate.

[0042] Specifically, the seal cover 20 and the cylindrical body 10 are connected by a transition fit. The transition fit between the seal cover 20 and the cylindrical body 10 enhances the connection reliability and sealing performance between the seal cover 20 and the cylindrical body 10. Of course, in other embodiments, the seal cover 20 and the cylindrical body 10 may be connected by other methods, such as welding, and are not limited here.

[0043] In this embodiment, a pattern is further provided on the end where the cylindrical body 10 and the seal cover 20 are engaged. In this way, the roughness of the engagement between the cylindrical body 10 and the seal cover 20 is increased, thereby enhancing the reliability of the engagement connection between the cylindrical body 10 and the seal cover 20.

[0044] Optionally, the seal cover 20 uses a stainless steel material, but of course in other embodiments, the seal cover 20 may use other materials such as copper or aluminum, which are not limited here.

[0045] Furthermore, a second sleeve 122 is connected to one end of the cylindrical body 10 adjacent to the first opening 121, and the second sleeve 122 is used to connect a copper pipe in an air conditioner. By providing the second sleeve 122, the second sleeve 122 acts as a joint that connects the connecting pipe 30 and the copper pipe in the air conditioner, thereby enhancing the connection performance and improving the welding effect.

[0046] Specifically, the material of the second sleeve 122 is copper. Because the material of the cylindrical body 10 is stainless steel, if the cylindrical body 10 is directly welded to the copper pipe of the air conditioner, the hardness of the joint after welding is too low and it is easily deformed during transportation, so the second sleeve 122 is provided as a transition member between the cylindrical body 10 and the copper pipe of the air conditioner to ensure the hardness of the joint and improve the reliability of the welding.

[0047] Furthermore, the connection segment 12 is provided with a limiting step 123. When the second sleeve 122 is connected to the connection segment 12, the second sleeve 122 can abut against the limiting step 123. This limits the position at which the second sleeve 122 is attached to the cylindrical body 10.

[0048] It should be noted that the second sleeve 122 may be inserted into the connection segment 12 to be connected to the cylindrical body 10, or may be fitted to the outer wall of the connection segment 12 to be connected to the cylindrical body 10. When the second sleeve 122 is inserted into the connection segment 12, the limiting step 123 is provided on the inner wall of the connection segment 12, and when the second sleeve 122 is fitted to the outer wall of the connection segment 12, the limiting step 123 is provided on the outer wall of the connection segment 12.

[0049] In other embodiments, the limiting step 123 may be a limiting bubble or a limiting ring, not limited herein.

[0050] Similarly, the second sleeve 122 may be provided with a limiting protrusion 1221 for limiting the copper pipe in the air conditioner, the principle of which is omitted here.

[0051] Furthermore, the silencer 100 further includes a connecting pipe 30. A flow port 142 engaged and connected to the connecting pipe 30 is drilled in the side wall of the cylindrical body 10, and the connecting pipe 30 is communicated with the chamber 11 through the flow port 142. By connecting the connecting pipe 30 to the side wall of the cylindrical body 10, the refrigerant can flow into the chamber 11 through the connecting pipe 30 or flow out of the chamber 11. That is, the refrigerant can flow into the cylindrical body 10 from the first opening 121 and then flow out of the cylindrical body 10 from the connecting pipe 30 through the flow port 142, or the refrigerant can be introduced into the cylindrical body 10 from the connecting pipe 30 and then flow out of the cylindrical body 10 from the first opening 121.

[0052] Optionally, in this embodiment, the connecting pipe 30 uses stainless steel material, but of course in other embodiments, the connecting pipe 30 may use other materials such as copper or aluminum, which are not limited here.

[0053] Specifically, the inner edge of the flow port 142 extends toward the connecting pipe 30 to form an outwardly expanded flange 143, and the flange 143 is fitted to the connecting pipe 30. Compared to connecting the connecting pipe 30 directly entering the flow port 142 and connecting to the cylindrical body 10, when the connecting pipe 30 is connected to the cylindrical body 10 via the flange 143, the outer peripheral wall of the connecting pipe 30 can be fixed in correspondence with the flange 143. This increases the contact area between the connecting pipe 30 and the cylindrical body 10, and further improves the connection reliability between the connecting pipe 30 and the cylindrical body 10.

[0054] As a matter of clarification, "extending outwardly" refers to a direction away from the center of barrel 10 and conversely, "extending inwardly" refers to a direction toward the center of barrel 10.

[0055] Furthermore, the connecting pipe 30 includes a first segment 31 welded to the cylindrical body 10 via the flow port 142, and a second segment 32 connected to the first segment 31 and spaced apart from the cylindrical body 10, and is arranged so that the first segment 31 and the second segment 32 form an included angle. Since the internal space of the air conditioner is limited, arranging the first segment 31 and the second segment 32 to form an included angle can significantly save space and also makes it easier to install the silencer 100.

[0056] Optionally, the included angle formed between the first segment 31 and the second segment 32 may be a right angle or any other angle. In some special cases, the first segment 31 and the second segment 32 may be further bent to form a bent pipe or a curved pipe to facilitate the installation of the silencer 100. In this embodiment, the first segment 31 and the second segment 32 are arranged to be at a right angle. That is, the axis of the first segment 31 and the axis of the cylindrical body 10 are perpendicular to each other, and the axis of the second segment 32 and the axis of the cylindrical body 10 are parallel to each other.

[0057] Specifically, the depth to which the first segment 31 is inserted into the cylindrical body 10 is defined as H, and H satisfies the relational expression H≧4 mm. If the first segment 31 is inserted too shallowly into the cylindrical body 10, the reliability of the connection between the connecting pipe 30 and the cylindrical body 10 decreases, and the first segment 31 may fall off during rocking, causing an accident.

[0058] Furthermore, a positioning protrusion 311 is provided on the outer wall surface of the first segment 31 close to the flow port 142. This positioning protrusion 311 is used to abut against the flange 143 and limit the insertion depth of the first segment 31. If the length of the first segment 31 inserted into the cylindrical body 10 is too long and it abuts against the inner wall of the cylindrical body 10, the refrigerant in the cylindrical body 10 will not be discharged smoothly from the connecting pipe 30, and if the length of the first segment 31 inserted into the cylindrical body 10 is too short, shaking will occur due to insufficient contact area. Therefore, by providing the positioning protrusion 311, the length of the first segment 31 inserted into the cylindrical body 10 can be well controlled.

[0059] Furthermore, a first sleeve 321 is provided at one end of the second segment 32 remote from the first segment 31, and the first sleeve 321 is used to connect a copper pipe in an air conditioner. By providing the first sleeve 321, the first sleeve 321 acts as a joint for connecting the connecting pipe 30 and the copper pipe in the air conditioner, thereby enhancing the connection performance and making the welding effect better.

[0060] Specifically, a limiting member (not shown) is provided at one end of the second segment 32 adjacent to the first sleeve 321, and is used to limit the position at which the first sleeve 321 is attached to the second segment 32.

[0061] It should be explained that the first sleeve 321 may be inserted into the second segment 32 and connected to the connecting pipe 30, or may be fitted into the outer wall of the second segment 32 and connected to the connecting pipe 30. When the first sleeve 321 is inserted into the second segment 32, the limiting member is provided on the inner wall of the second segment 32, and when the first sleeve 321 is fitted into the outer wall of the second segment 32, the limiting member is provided on the outer wall of the second segment 32.

[0062] Similarly, the first sleeve 321 may be provided with a restricting member for restricting the copper pipe in the air conditioner, the principle of which is omitted here.

[0063] Specifically, the material of the first sleeve 321 is copper. Because the material of the connecting pipe 30 is stainless steel, if the connecting pipe 30 is directly welded to the copper pipe of the air conditioner, the hardness of the joint after welding is too low and it is easily deformed during transportation. Therefore, the first sleeve 321 is provided as a transition member between the connecting pipe 30 and the copper pipe of the air conditioner to ensure the hardness of the joint and improve the reliability of the welding.

[0064] The present application further provides an air conditioner (not shown) including a compressor (not shown) and a silencer 100 connected to the compressor.

[0065] In this application, the silencer 100 is connected between the compressor and the four-way valve. That is, the second sleeve 122 and the exhaust pipe of the compressor are connected to each other, the first opening 121 and the exhaust pipe of the compressor are communicated to each other, and the connecting pipe 30 is connected to the piping connecting the four-way valve of the air conditioner. The refrigerant compressed by the compressor to form a high-speed and high-pressure refrigerant is discharged from the exhaust pipe and enters the cylinder 10 through the first opening 121. Since the diameter of the main body segment 14 is larger than the diameter of the connecting segment 12, the refrigerant is effectively relaxed, reducing the noise generated during the operation of the air conditioner and improving the user experience.

[0066] The silencer 100 of the present application can be applied not only to air conditioners but also to other devices having a cooling system.

[0067] The technical features of the above embodiments may be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, to the extent that any combination of these technical features is not contradictory, it should be considered as being within the scope of the present specification.

[0068] The above examples merely show some embodiments of the present application, and the description is specific and detailed, but should not be understood as limiting the scope of the application. It should be noted that those skilled in the art can make some further modifications and improvements without departing from the spirit of the present application, all of which are within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of the appended claims.

Claims

1. A silencer including a cylindrical body, the cylindrical body having a chamber therein, the cylindrical body having a first opening and a second opening formed at both ends thereof, the first opening and the second opening communicating with each other via the chamber, The muffler further includes a seal cover, the seal cover being located at one end of the second opening in the cylindrical body to cover the second opening, and the seal cover and the cylindrical body being provided separately, The cylindrical body includes a connection segment, a taper segment, and a main body segment connected in order, the first opening is formed in the connection segment, and the second opening is formed in one end of the main body segment adjacent to the seal cover, and when the thickness of the connection segment is defined as t1, the thickness of the taper segment is defined as t2, and the thickness of the main body segment is defined as t3, t1, t2, and t3 satisfy the relationship t1>t3>t2.

2. The silencer of claim 1 , wherein a transition fit is provided between the seal cover and the barrel.

3. 2. The silencer according to claim 1, further comprising a connecting pipe, a flow port being drilled in a side wall of the cylindrical body and engaged and connected to the connecting pipe, and the connecting pipe is connected to the chamber via the flow port.

4. 4. The muffler according to claim 3, wherein an inner edge of the flow port extends toward the connecting pipe to form an outwardly expanded flange, the flange being fitted onto the connecting pipe.

5. 4. The silencer according to claim 3, wherein a depth of said connecting pipe inserted into said cylindrical body is defined as H, and H satisfies a relational expression H≧4 mm.

6. 4. The muffler according to claim 3, wherein a first sleeve is connected to one end of the connecting pipe remote from the flow port, the first sleeve being used to connect a copper pipe in a cooling system.

7. 7. The muffler of claim 6, further comprising a second sleeve connected to one end of the barrel adjacent to the first opening, the second sleeve being used to connect a copper pipe in a cooling system.

8. 8. The silencer of claim 7, wherein the first sleeve and / or the second sleeve is a copper tube.

9. 8. The silencer according to claim 7, wherein a limiting step is provided at one end of the cylindrical body adjacent to the first opening, and the second sleeve can abut against the limiting step.

10. An air conditioner comprising a compressor and a silencer according to any one of claims 1 to 9 connected to the compressor.

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