Noise suppression device, gas-liquid separator, air conditioning system and vehicle

Abstract

The utility model discloses a noise suppression device, a gas-liquid separator, an air conditioning system and a vehicle, and belongs to the field of gas-liquid separators. The noise suppression device is applied to a gas-liquid separator in an air conditioning system of a vehicle and comprises an elastic body and a wrapping piece, a plurality of air holes are formed in the elastic body, the elastic body is wrapped by the wrapping piece, and the wrapping piece is breathable; wherein under the condition that the noise suppression device is applied to the gas-liquid separator, at least one of the gas guide pipe and the molecular sieve bag in the gas-liquid separator is connected with the wrapping piece. According to the noise suppression device, the wrapping piece wraps the elastic body, the elastic body is provided with the multiple air holes, and the wrapping piece is breathable, so that after the noise suppression device is applied to the gas-liquid separator, liquid refrigerants in the gas-liquid separator can be changed into gas refrigerants, and the gas refrigerants impact the noise suppression device; in addition, the noise suppression device can also play a role in buffering, noise in the gas-liquid separator is reduced, and therefore the quietness of the vehicle can be improved.

Description

Technical Field

[0001] This application belongs to the field of gas-liquid separators, specifically relating to a noise suppression device, a gas-liquid separator, an air conditioning system, and a vehicle. Background Technology

[0002] With the development of technology, vehicles have become an indispensable means of transportation for people's daily travel. To improve the comfort of passengers, vehicles are usually equipped with air conditioning systems to provide cool or warm air to the interior. These systems contain compressors, and the compressor's inlet is equipped with a gas-liquid separator. After the refrigerant enters the separator, it undergoes gas-liquid separation, allowing the gas to enter the compressor, where it is compressed and recirculated. However, in some technologies, the gas-liquid separation process in the gas-liquid separator can generate noise, affecting the vehicle's quietness. Utility Model Content

[0003] The purpose of this application is to provide a noise suppression device, a gas-liquid separator, an air conditioning system, and a vehicle, at least to solve the problem that noise is easily generated when the refrigerant in the gas-liquid separator is separated into gas and liquid, which affects the quietness of the vehicle.

[0004] In a first aspect, embodiments of this application provide a noise suppression device applied in a gas-liquid separator of a vehicle's air conditioning system. The noise suppression device includes an elastomer and a wrapping component.

[0005] The elastomer has multiple air holes, the wrapping material wraps the elastomer, and the wrapping material is breathable;

[0006] In the case where the noise suppression device is applied to the gas-liquid separator, the gas guide tube in the gas-liquid separator is connected to at least one of the molecular sieve packages.

[0007] Optionally, the package is connected to a strapping device for securing the package to the gas delivery tube or molecular sieve pack in the gas-liquid separator.

[0008] Optionally, the elastomer has a cylindrical structure, and the package has a cylindrical structure, with the space inside the package used to insert the air duct.

[0009] Optionally, the elastomer has a pocket-shaped structure, and the package has a pocket-shaped structure, the package forming a receiving cavity for accommodating the molecular sieve package.

[0010] Secondly, embodiments of this application provide a gas-liquid separator, which includes a shell, a top cover, a liquid distribution component, a gas guide pipe, and a noise suppression device as described in any one of the first aspects above;

[0011] The housing has an opening, and the top cover is disposed on the opening. The top cover is provided with a refrigerant inlet and a refrigerant outlet. The liquid distribution component is disposed in the housing and along the axial direction of the housing. There is a gap between the liquid distribution component and the top cover.

[0012] The orthographic projection of the refrigerant inlet along the axial direction of the housing and the orthographic projection of the refrigerant outlet along the axial direction of the housing are both located on the liquid distribution component. The liquid distribution component is provided with a through hole. The vent pipe has a U-shaped structure, and part of the vent pipe passes through the through hole. The first opening of the vent pipe is located on the side of the liquid distribution component near the top cover, and the first opening is connected to the refrigerant outlet. The second opening of the vent pipe is located on the side of the liquid distribution component away from the top cover, and there is a gap between the second opening and the liquid distribution component. There is a gap between the side wall of the liquid distribution component and the inner wall of the housing.

[0013] The noise suppression device is disposed in the air guide pipe and is located on the side of the liquid distribution component away from the top cover.

[0014] Optionally, the gas-liquid separator further includes a molecular sieve bag, which is connected to the noise suppression device disposed on the gas guide pipe, and the noise suppression device is disposed on the molecular sieve bag and covers the molecular sieve bag.

[0015] Thirdly, embodiments of this application provide a gas-liquid separator, which includes a shell, a top cover, a liquid separator, an inlet pipe, an outlet pipe, and a noise suppression device as described in any one of the first aspects above;

[0016] The housing has an opening, and the top cover is disposed on the opening. The top cover is provided with a refrigerant inlet and a refrigerant outlet. The liquid distribution component is disposed in the housing and along the axial direction of the housing. There is a gap between the liquid distribution component and the top cover, and there is a gap between the side wall of the liquid distribution component and the inner wall of the housing.

[0017] The orthographic projection of the refrigerant inlet along the axial direction of the housing and the orthographic projection of the refrigerant outlet along the axial direction of the housing are both located on the liquid distribution component, which is provided with a through hole.

[0018] The air inlet pipe is disposed in the housing and is located on the side of the liquid distribution component away from the top cover. Part of the air outlet pipe is embedded in the air inlet pipe, and there is a gap between the outer wall of the air outlet pipe and the inner wall of the air inlet pipe. There is a gap between the first opening of the air outlet pipe and the inner wall of the air inlet pipe. Another part of the air outlet pipe passes through the through hole, and the second opening of the air outlet pipe is connected to the refrigerant outlet.

[0019] The noise suppression device is disposed on the outer wall of the air intake pipe, and the noise suppression device covers at least a portion of the air intake pipe.

[0020] Optionally, the gas-liquid separator further includes a molecular sieve package disposed in the housing and located at the bottom of the housing. The noise suppression device is disposed on the molecular sieve package and covers the molecular sieve package.

[0021] Fourthly, embodiments of this application provide an air conditioning system, which includes a compressor and a gas-liquid separator as described in any of the second or third aspects above;

[0022] The refrigerant outlet faces the compressor.

[0023] Fifthly, embodiments of this application provide a vehicle, the vehicle including a vehicle body and the air conditioning system described in the fourth aspect above, the air conditioning system being installed in the vehicle body.

[0024] In this embodiment, since the elastomer has multiple pores, and the encapsulation piece encapsulates the elastomer and is breathable, when the noise suppression device is applied in the gas-liquid separator, it can be connected to at least one of the gas guide pipe and the molecular sieve pack in the gas-liquid separator. That is, the encapsulation piece is connected to at least one of the gas guide pipe and the molecular sieve pack. Once the liquid refrigerant enters the gas-liquid separator, during the process of boiling and turning into gaseous refrigerant, the liquid refrigerant enters the noise suppression device, thus contacting the elastomer. The multiple pores on the elastomer facilitate the transformation of the liquid refrigerant into gaseous refrigerant. Essentially, the liquid refrigerant is separated and compressed by the multiple pores on the elastomer, making it easier for the liquid refrigerant to become gaseous. When the gaseous refrigerant flows out from the encapsulation piece and flows in the gas-liquid separator, it impacts the noise suppression device. The noise suppression device acts as a buffer, reducing the noise generated by the impact of the gaseous refrigerant, thereby reducing the noise of the gas-liquid separator. In other words, in this embodiment of the application, by wrapping the elastomer with a package and the elastomer having multiple air holes, the package is breathable. Therefore, after applying the noise suppression device to the gas-liquid separator, it not only facilitates the conversion of the liquid refrigerant in the gas-liquid separator into a gaseous refrigerant, improving the efficiency of gas-liquid separation, but also allows the noise suppression device to act as a buffer when the gaseous refrigerant impacts it, reducing the noise in the gas-liquid separator and thus improving the quietness of the vehicle. Attached Figure Description

[0025] Figure 1 This diagram illustrates a noise suppression device provided in an embodiment of this application.

[0026] Figure 2 This is a top view of a gas-liquid separator provided in an embodiment of this application;

[0027] Figure 3 express Figure 2 One of the cross-sectional views at point AA;

[0028] Figure 4 express Figure 2 Sectional view at point AA (second section);

[0029] Figure 5 This is a top view of another gas-liquid separator provided in an embodiment of this application;

[0030] Figure 6 express Figure 5 One of the cross-sectional views at point BB;

[0031] Figure 7 express Figure 5 The second cross-sectional view at point BB.

[0032] Figure label:

[0033] 10: Noise suppression device; 1: Elastomer; 2: Wrapper; 3: Strapping component; 100: Housing; 200: Top cover; 201: Refrigerant inlet; 202: Refrigerant outlet; 210: Sealing ring; 300: Liquid separator; 400: Gas guide pipe; 401: First opening; 402: Second opening; 500: Molecular sieve bag; 600: Gas inlet pipe; 700: Gas outlet pipe; 701: First port; 702: Second port; 800: Oil return hole; 900: Filter screen. Detailed Implementation

[0034] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Reference Figure 1 The diagram shows a schematic of a noise suppression device 10 provided in an embodiment of this application. This noise suppression device 10 is applied in the gas-liquid separator of a vehicle's air conditioning system, such as... Figure 1 As shown, the noise suppression device 10 includes: an elastomer 1 and a wrapping member 2; the elastomer 1 is provided with a plurality of air holes, the wrapping member 2 wraps the elastomer 1, and the wrapping member 2 is breathable; wherein, when the noise suppression device 10 is applied to a gas-liquid separator, at least one of the gas guide pipe 400 in the gas-liquid separator and the molecular sieve bag 500 is connected to the wrapping member 2.

[0038] In this embodiment, since the elastomer 1 has multiple pores, and the wrapping member 2 wraps the elastomer 1 and is breathable, when the noise suppression device 10 is applied in the gas-liquid separator, the noise suppression device 10 can be connected to at least one of the gas guide pipe 400 and the molecular sieve pack 500 in the gas-liquid separator, that is, the wrapping member 2 is connected to at least one of the gas guide pipe 400 and the molecular sieve pack 500. Thus, once the liquid refrigerant enters the gas-liquid separator, during the process of the liquid refrigerant boiling and turning into gaseous refrigerant in the gas-liquid separator, the liquid... The liquid refrigerant enters the noise suppression device 10, thereby contacting the elastomer 1. The multiple pores on the elastomer 1 help the liquid refrigerant turn into gaseous refrigerant. It is equivalent to the liquid refrigerant being separated and compressed by the multiple pores on the elastomer 1, making it easier for the liquid refrigerant to turn into gaseous refrigerant. When the gaseous refrigerant flows out from the package 2 and flows in the gas-liquid separator, the gaseous refrigerant impacts the noise suppression device 10. The noise suppression device 10 can play a buffering role, reducing the noise generated by the impact of the gaseous refrigerant, thereby reducing the noise of the gas-liquid separator. That is, in this embodiment of the application, by wrapping the elastic body 1 with the wrapping 2 and the elastic body 1 having multiple air holes, the wrapping 2 is breathable. Thus, after the noise suppression device 10 is applied to the gas-liquid separator, it can not only facilitate the conversion of the liquid refrigerant in the gas-liquid separator into gaseous refrigerant, thereby improving the efficiency of gas-liquid separation, but also the noise suppression device 10 can act as a buffer when the gaseous refrigerant impacts the noise suppression device 10, thereby reducing the noise in the gas-liquid separator and improving the quietness of the vehicle.

[0039] It should be noted that the wrapping component 2 can be non-woven fabric, which is breathable. Of course, the wrapping component 2 can also be other breathable components, such as a screen. The specific type of the wrapping component 2 is not limited in this embodiment. Furthermore, when the wrapping component 2 is non-woven fabric, after wrapping the elastomer 1 with the non-woven fabric, the opening of the non-woven fabric can be welded together using a heat-sealing process to ensure that the non-woven fabric completely wraps the elastomer 1, preventing the elastomer 1 from leaking out of the non-woven fabric.

[0040] Furthermore, in this embodiment, the wrapping element 2 wraps around the elastomer 1, which can prevent the elastomer 1 from forming particles due to the vaporization of the liquid refrigerant, thus preventing these particles from entering the refrigerant and affecting the air conditioning system. In other words, by wrapping the elastomer 1 with the wrapping element 2, impurities entering the refrigerant can be prevented from affecting the air conditioning system.

[0041] In addition, in the embodiments of this application, the material of the elastomer 1 can be rubber. Of course, the material of the elastomer 1 can also be a foamable material. In this regard, the embodiments of this application do not limit it.

[0042] In some embodiments, the package 2 is connected to a strapping member 3, which is used to strap the package 2 to the gas guide tube 400 or molecular sieve package 500 in the gas-liquid separator.

[0043] Because the package 2 is connected to the binding member 3, when the noise suppression device 10 is applied in the gas-liquid separator, the binding member 3 can be used to bind the package 2 to the gas guide tube 400 or molecular sieve bag 500 in the gas-liquid separator. This effectively avoids the noise suppression device 10 from being easily moved in the gas-liquid separator, which could affect noise suppression. In other words, by setting the binding member 3, it is easy to fix the noise suppression device 10 to the gas guide tube 400 or molecular sieve bag 500, which is beneficial for the noise suppression device 10 to reduce noise in the gas-liquid separator.

[0044] It should be noted that the binding component 3 can be a cable tie. Of course, the binding component 3 can also be other devices with binding functions, such as binding rope. In this regard, the embodiments of this application do not limit it.

[0045] Furthermore, the number of strapping components 3 can be set according to actual needs. For example, the number of strapping components 3 can be 2, or even 4. The specific number of strapping components 3 is not limited in this embodiment. Additionally, when there are multiple strapping components 3, they can be spaced out.

[0046] In some embodiments, the elastomer 1 is a cylindrical structure and the wrapping 2 is a cylindrical structure, with the space inside the wrapping 2 used to pass through the air duct 400.

[0047] With this configuration, when the noise suppression device 10 needs to be applied to the gas-liquid separator and installed on the air guide pipe 400 in the gas-liquid separator, the air guide pipe 400 can be directly inserted into the space inside the enclosure 2, thereby allowing the noise suppression device 10 to be installed on the air guide pipe 400. That is, by setting both the elastomer 1 and the enclosure 2 as cylindrical structures, it is easy to install the noise suppression device 10 on the air guide pipe 400.

[0048] It should be noted that in practical applications, the elastomer 1 and the wrapping component 2 can be rolled into a cylindrical structure, and then the rolled wrapping component 2 can be connected by a thermal process.

[0049] In addition, when the package 2 is connected to the strapping 3, once the noise suppression device 10 is installed on the air duct 400, the package 2 can also be strapped with the strapping 3 to ensure that the noise suppression device 10 is fixed.

[0050] In addition, in some embodiments, the elastomer 1 has a pocket-shaped structure and the package 2 has a pocket-shaped structure, the package 2 enclosing to form a receiving cavity for accommodating the molecular sieve package 500.

[0051] With this configuration, when the noise suppression device 10 needs to be applied to the gas-liquid separator and installed on the molecular sieve bag 500 in the gas-liquid separator, the molecular sieve bag 500 can be directly placed in the receiving cavity formed by the wrapping member 2, thereby allowing the noise suppression device 10 to be installed on the molecular sieve bag 500. In other words, by setting both the elastomer 1 and the wrapping member 2 as pocket-shaped structures, it is easy to install the noise suppression device 10 on the molecular sieve bag 500.

[0052] It should be noted that in practical applications, the elastomer 1 and the wrapping component 2 can be enclosed to form a pocket-like structure, and then the enclosed wrapping component 2 can be connected by a thermal process.

[0053] In addition, when the package 2 is connected to the binding member 3, once the noise suppression device 10 is installed on the molecular sieve package 500, the package 2 can also be bound by the binding member 3 to ensure that the noise suppression device 10 is fixed.

[0054] This application provides a gas-liquid separator, such as... Figure 2 , Figure 3 and Figure 4 As shown, the gas-liquid separator includes a housing 100, a top cover 200, a liquid separator 300, a gas guide pipe 400, and a noise suppression device 10 as described in any of the above embodiments.

[0055] The housing 100 has an opening, and a top cover 200 is placed over the opening. The top cover 200 has a refrigerant inlet 201 and a refrigerant outlet 202. A liquid distributor 300 is disposed within the housing 100, and there is a gap between the liquid distributor 300 and the top cover 200 along the axial direction of the housing 100. The orthographic projections of the refrigerant inlet 201 and the refrigerant outlet 202 along the axial direction of the housing 100 are both located on the liquid distributor 300. The liquid distributor 300 has a through hole. The vent pipe 400 has a U-shaped structure, and part of the vent pipe 400... A through hole is provided in the air guide pipe 400. The first opening 401 of the air guide pipe 400 is located on the side of the liquid distribution component 300 near the top cover 200, and the first opening 401 is connected to the refrigerant outlet 202. The second opening 402 of the air guide pipe 400 is located on the side of the liquid distribution component 300 away from the top cover 200, and there is a gap between the second opening 402 and the liquid distribution component 300. There is a gap between the side wall of the liquid distribution component 300 and the inner wall of the housing 100. The noise suppression device 10 is provided in the air guide pipe 400, and the noise suppression device 10 is located on the side of the liquid distribution component 300 away from the top cover 200.

[0056] Since the top cover 200 is provided with a refrigerant inlet 201 and a refrigerant outlet 202, after the gas-liquid separator is applied to the air conditioning system, liquid refrigerant can flow into the housing 100 through the refrigerant inlet 201. Because the liquid distributor 300 is disposed in the housing 100, and there is a gap between the liquid distributor 300 and the top cover 200 along the axial direction of the housing 100, and a gap between the side wall of the liquid distributor 300 and the inner wall of the housing 100, the orthographic projection of the refrigerant inlet 201 along the axial direction of the housing 100 and the orthographic projection of the refrigerant outlet 202 along the axial direction of the housing 100 are both located on the liquid distributor 300. Therefore, when liquid refrigerant flows into the housing 100 through the refrigerant inlet 201, the liquid refrigerant enters the interior of the housing 100 through the gap between the liquid distributor 300 and the top cover 200. Because the liquid distributor 300 is provided with a through hole, the gas guide tube 400 has a U-shaped structure, and part of the gas guide tube 400 is provided with a through hole, the first opening 401 of the gas guide tube 400 is located on the side of the liquid distributor 300 near the top cover 200, and the first opening 401 is connected to the refrigerant outlet 202. The second opening 402 of the gas guide tube 400 is located on the side of the liquid distributor 300 away from the top cover 200, and there is a gap between the second opening 402 and the liquid distributor 300. Therefore, once the liquid refrigerant becomes gaseous refrigerant inside the housing 100, the gaseous refrigerant can flow through the gap between the second opening 402 and the liquid distributor 300 to the second opening 402 and flow into the gas guide tube 400. The gaseous refrigerant also flows to the first opening 401 and flows to the outside of the housing 100 through the refrigerant outlet 202. Since the noise suppression device 10 is located in the air duct 400 and on the side of the liquid separator 300 away from the top cover 200, when the liquid refrigerant boils violently, the liquid refrigerant changes from liquid to gas. The gaseous refrigerant impacts the noise suppression device 10, which can act as a buffer to reduce the noise in the gas-liquid separator, thereby effectively reducing the noise of the gas-liquid separator and improving the quietness of the vehicle.

[0057] In some embodiments, the gas-liquid separator further includes a molecular sieve package 500, which is connected to a noise suppression device 10 disposed on the gas guide pipe 400. The noise suppression device 10 is disposed on the molecular sieve package 500 and covers the molecular sieve package 500. With this arrangement, the gaseous refrigerant impacts the noise suppression device 10 on the molecular sieve package 500, thereby preventing the gaseous refrigerant from generating significant noise near the molecular sieve package 500, and further reducing the noise of the gas-liquid separator.

[0058] It should be noted that the molecular sieve pack 500 contains zeolite, which facilitates the conversion of liquid refrigerant into gaseous refrigerant.

[0059] In addition, when the package 2 is connected to the strapping member 3, the noise suppression device 10 can be fixed to the air duct 400 by the strapping member 3, or the noise suppression device 10 can be fixed to the molecular sieve package 500 by the strapping member 3.

[0060] In addition, an oil return port can be installed on the gas guide pipe 400 of the gas-liquid separator, and a filter screen 900 can be installed at the oil return port.

[0061] In addition, a sealing ring 210 can be provided between the top cover 200 and the housing 100 to ensure that the top cover 200 seals the opening of the housing 100.

[0062] This application provides a gas-liquid separator, such as... Figure 5 , Figure 6 and Figure 7 As shown, the gas-liquid separator includes a housing 100, a top cover 200, a liquid separator 300, an air inlet pipe 600, an air outlet pipe 700, and a noise suppression device 10 as described in any of the above embodiments.

[0063] The housing 100 has an opening, and a top cover 200 is provided over the opening. The top cover 200 has a refrigerant inlet 201 and a refrigerant outlet 202. A liquid distributor 300 is disposed within the housing 100 along its axial direction. A gap exists between the liquid distributor 300 and the top cover 200, and a gap exists between the side wall of the liquid distributor 300 and the inner wall of the housing 100. The orthographic projections of the refrigerant inlet 201 and the refrigerant outlet 202 along the axial direction of the housing 100 are both located on the liquid distributor 300. The liquid distributor 300 has a through hole. An air inlet pipe 600... The air inlet pipe 600 is located on the side of the liquid distribution member 300 away from the top cover 200, and a portion of the air outlet pipe 700 is embedded in the air inlet pipe 600. There is a gap between the outer wall of the air outlet pipe 700 and the inner wall of the air inlet pipe 600. There is a gap between the first port 701 of the air outlet pipe 700 and the inner wall of the air inlet pipe 600. Another portion of the air outlet pipe 700 has a through hole, and the second port 702 of the air outlet pipe 700 is connected to the refrigerant outlet 202. The noise suppression device 10 is disposed on the outer wall of the air inlet pipe 600 and covers at least a portion of the air inlet pipe 600.

[0064] Since the top cover 200 is provided with a refrigerant inlet 201 and a refrigerant outlet 202, after the gas-liquid separator is applied to the air conditioning system, liquid refrigerant can flow into the housing 100 through the refrigerant inlet 201. Because the liquid distributor 300 is disposed in the housing 100, and there is a gap between the liquid distributor 300 and the top cover 200 along the axial direction of the housing 100, and a gap between the side wall of the liquid distributor 300 and the inner wall of the housing 100, the orthographic projection of the refrigerant inlet 201 along the axial direction of the housing 100 and the orthographic projection of the refrigerant outlet 202 along the axial direction of the housing 100 are both located on the liquid distributor 300. Therefore, when liquid refrigerant flows into the housing 100 through the refrigerant inlet 201, the liquid refrigerant enters the interior of the housing 100 through the gap between the liquid distributor 300 and the top cover 200. Because the liquid separator 300 has a through hole, the air inlet pipe 600 is located in the housing 100. The air inlet pipe 600 is located on the side of the liquid separator 300 away from the top cover 200. Part of the air outlet pipe 700 is embedded in the air inlet pipe 600, and there is a gap between the outer wall of the air outlet pipe 700 and the inner wall of the air inlet pipe 600. There is also a gap between the first port 701 of the air outlet pipe 700 and the inner wall of the air inlet pipe 600. In addition, part of the air outlet pipe 700 has a through hole for air outlet. The second port 702 of pipe 700 is connected to the refrigerant outlet 202. Therefore, once the liquid refrigerant turns into gaseous refrigerant inside the housing 100, the gaseous refrigerant can enter the interior of the intake pipe 600. Then, the gaseous refrigerant flows to the first port 701 of the outlet pipe 700 and enters the outlet pipe 700. Afterward, the gaseous refrigerant flows from the second port 702 of the outlet pipe 700 to the refrigerant outlet 202 and then to the outside of the housing 100. Since the noise suppression device 10 is located on the outer wall of the intake pipe 600 and covers at least a portion of the intake pipe 600, when the liquid refrigerant boils violently, it changes from a liquid to a gaseous state. The gaseous refrigerant impacts the noise suppression device 10, which acts as a buffer, reducing noise in the gas-liquid separator. This effectively reduces the noise of the gas-liquid separator, thereby improving the vehicle's quietness.

[0065] In some embodiments, the gas-liquid separator further includes a molecular sieve pack 500, which is disposed within the housing 100 and located at the bottom of the housing 100. A noise suppression device 10 is disposed on the molecular sieve pack 500, and the noise suppression device 10 covers the molecular sieve pack 500. With this arrangement, the gaseous refrigerant impacts the noise suppression device 10 on the molecular sieve pack 500, thereby preventing the gaseous refrigerant from generating significant noise near the molecular sieve pack 500, and further reducing the noise of the gas-liquid separator.

[0066] It should be noted that the molecular sieve pack 500 contains zeolite, which facilitates the conversion of liquid refrigerant into gaseous refrigerant.

[0067] In addition, when the package 2 is connected to the strapping member 3, the noise suppression device 10 can be fixed to the air duct 400 by the strapping member 3, or the noise suppression device 10 can be fixed to the molecular sieve package 500 by the strapping member 3.

[0068] In addition, a filter screen 900 can be installed at the inlet of the air inlet pipe 600 of the gas-liquid separator, and an oil return port can be installed at the filter screen 900.

[0069] In addition, a sealing ring 210 can be provided between the top cover 200 and the housing 100 to ensure that the top cover 200 seals the opening of the housing 100.

[0070] This application provides an air conditioning system, which includes a compressor and a gas-liquid separator as described in any of the above embodiments; the refrigerant outlet 202 faces the compressor.

[0071] It should be noted that once the compressor is running, it generates suction, which causes the gaseous refrigerant in the gas-liquid separator to be attracted, so that the gaseous refrigerant can easily flow from the refrigerant outlet 202 to the outside of the housing 100 and then to the compressor, which compresses the gaseous refrigerant.

[0072] This application provides a vehicle, which includes a vehicle body and an air conditioning system as described in the above embodiments, wherein the air conditioning system is installed in the vehicle body.

[0073] It should be noted that the types of vehicles include, but are not limited to, hybrid vehicles, electric vehicles, and gasoline-powered vehicles.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A noise suppression device, characterized by comprising: The noise suppression device applied to the gas-liquid separator of the air conditioning system of the vehicle comprises an elastic body and a wrapping piece; A plurality of air holes are arranged on the elastic body, the wrapping piece wraps the elastic body, and the wrapping piece is breathable; When the noise suppression device is applied to the gas-liquid separator, at least one of the gas guide pipe and the molecular sieve bag in the gas-liquid separator is connected to the wrapping piece.

2. The noise suppression device of claim 1, wherein The wrapping piece is connected to a bundling piece, and the bundling piece is used to bundle the wrapping piece to the gas guide pipe or the molecular sieve bag in the gas-liquid separator.

3. The noise suppression device of claim 1, wherein The elastic body is a cylindrical structure, and the wrapping piece is a cylindrical structure, and the space inside the wrapping piece is used to pass the gas guide pipe.

4. The noise suppression device of claim 1, wherein The elastic body is a pocket-shaped structure, and the wrapping piece is a pocket-shaped structure, and the wrapping piece forms an accommodation cavity, and the accommodation cavity is used to accommodate the molecular sieve bag.

5. A gas-liquid separator characterized by, The gas-liquid separator comprises a shell, a top cover, a separator, a gas guide pipe and the noise suppression device of any one of claims 1-4; The shell has an opening, the top cover is arranged on the opening, the top cover is provided with a refrigerant inlet and a refrigerant outlet, the separator is arranged in the shell, and there is a gap between the separator and the top cover along the axis direction of the shell; The projection of the refrigerant inlet along the axis direction of the shell and the projection of the refrigerant outlet along the axis direction of the shell are both located on the separator, the separator is provided with a passing hole, the gas guide pipe is a U-shaped structure, and part of the gas guide pipe passes through the passing hole, the first opening of the gas guide pipe is located on the side of the separator close to the top cover, and the first opening is communicated with the refrigerant outlet, the second opening of the gas guide pipe is located on the side of the separator away from the top cover, and there is a gap between the second opening and the separator, and there is a gap between the side wall of the separator and the inner wall of the shell; The noise suppression device is arranged on the gas guide pipe, and the noise suppression device is located on the side of the separator away from the top cover.

6. The gas-liquid separator of claim 5, wherein, The gas-liquid separator further comprises a molecular sieve bag, the molecular sieve bag is connected to the noise suppression device arranged on the gas guide pipe, and the noise suppression device is arranged on the molecular sieve bag and covers the molecular sieve bag.

7. A gas-liquid separator characterized by, The gas-liquid separator comprises a shell, a top cover, a separator, an air inlet pipe, an air outlet pipe and the noise suppression device of any one of claims 1-4; The shell has an opening, the top cover is arranged on the opening, the top cover is provided with a refrigerant inlet and a refrigerant outlet, the separator is arranged in the shell, and there is a gap between the separator and the top cover along the axis direction of the shell, and there is a gap between the side wall of the separator and the inner wall of the shell; The projection of the refrigerant inlet along the axis direction of the shell and the projection of the refrigerant outlet along the axis direction of the shell are both located on the separator, and the separator is provided with a passing hole; The air inlet pipe is arranged in the shell, and is located on the side of the distributor away from the top cover. Part of the air outlet pipe is embedded in the air inlet pipe, and a gap is formed between the outer wall of the air outlet pipe and the inner wall of the air inlet pipe. A first pipe opening of the air outlet pipe is spaced apart from the inner wall of the air inlet pipe. Another part of the air outlet pipe passes through the through hole, and a second pipe opening of the air outlet pipe is in communication with the refrigerant outlet. The noise suppression device is arranged on the outer wall of the air inlet pipe, and covers at least part of the air inlet pipe.

8. The gas-liquid separator of claim 7, wherein, The gas-liquid separator further comprises a molecular sieve package, which is arranged in the shell and located at the bottom of the shell. The noise suppression device is arranged on the molecular sieve package, and covers the molecular sieve package.

9. An air conditioning system, characterised in that, The air conditioning system comprises a compressor and the gas-liquid separator according to any one of claims 5-8. The refrigerant outlet is directed towards the compressor.

10. A vehicle characterized by comprising: The vehicle comprises a vehicle body and the air conditioning system according to claim 9, which is installed in the vehicle body.

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