Compressor

Abstract

The utility model discloses a compressor, and aims to provide a compressor which not only can reduce the development cost of a refrigerator compressor, but also can effectively reduce the mixing of a refrigerant and oil mist when the refrigerator compressor with the same suction and exhaust side and the different suction and exhaust side is developed. The device comprises: a housing; the first air pipe, the second air pipe and the exhaust pipe are connected with the shell, the first air pipe and the exhaust pipe are located on the same side of the shell, and the second air pipe and the exhaust pipe are located on the two sides of the shell; the refrigeration unit is arranged in the shell and comprises an air cylinder, and an air inlet of the air cylinder is detachably connected with a first air suction silencer or a second air suction silencer; when the air inlet is connected with the first air suction silencer, the first air pipe forms an air suction pipe of the compressor; when the air inlet is connected with the second air suction silencer, the second air pipe forms an air suction pipe of the compressor, and the second air pipe is connected with an inlet of the second air suction silencer through a pipeline arranged in the shell.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a refrigerator compressor. Background Technology

[0002] A typical refrigerator compressor includes a sealed housing, a refrigeration unit located within the sealed housing, an intake muffler located within the sealed housing, and intake, process, and exhaust pipes sealed to the housing. The intake, process, and exhaust pipes are all located on the outside of the housing. The intake and process pipes are located on opposite sides of the housing (currently, the process pipe is used to inject refrigerant into the housing before the compressor leaves the factory; after refrigerant injection, the process pipe is sealed). The end of the intake pipe that is sealed to the housing forms the compressor intake port. During operation, the refrigerant enters the compressor housing through the intake pipe and the compressor intake port. Then, the refrigerant is rapidly drawn into the muffler through the intake inlet and directly into the cylinder of the refrigeration unit for compression. Because the compressor housing is filled with refrigerant during operation, and the lubricating oil in the compressor housing generates oil mist during lubrication circulation, the compressor intake port is generally located near the muffler inlet to reduce the mixing of refrigerant and oil mist.

[0003] Refrigerator compressors are classified into two structures based on the location of their suction and discharge pipes: those with suction and discharge on the same side and those with suction and discharge on opposite sides. In the former, the suction and discharge pipes are located on the same side of the compressor; in the latter, they are located on opposite sides. Currently, these two types of compressors differ significantly in their refrigeration unit and casing designs. Major components such as the motor and internal mechanisms of the casing and refrigeration unit are not interchangeable, leading to an increase in the variety of refrigerator compressor parts, higher development costs, and hindering product standardization.

[0004] To reduce the development cost of refrigerator compressors, some refrigerator manufacturers, when developing refrigerator compressors with opposite suction and exhaust sides, directly use the process tubes in refrigerator compressors with the same suction and exhaust sides as suction tubes (the suction tube and process tube are located on opposite sides of the casing). Although this can create refrigerator compressors with the same suction and exhaust sides to meet the layout and manufacturing needs of different refrigerator models, the distance between the process tubes and the inlet of the suction muffler in refrigerator compressors with the same suction and exhaust sides is relatively large. During the process from the refrigerant entering the compressor casing through the process tube to being sucked in by the inlet of the suction muffler, the refrigerant will mix with the oil mist inside the compressor casing, and more lubricating oil will enter the refrigerant circulation system, causing problems such as increased power consumption in the refrigerator. Utility Model Content

[0005] The purpose of this invention is to provide a refrigerator compressor that, when developing refrigerator compressors with the intake and exhaust sides on the same side or opposite sides, can reduce the development cost of refrigerator compressors and effectively reduce the mixing of refrigerant and oil mist, thus avoiding excessive lubricating oil entering the refrigerant circulation system and causing increased power consumption in the refrigerator.

[0006] As needed.

[0007] The technical solution of this utility model is:

[0008] A compressor, comprising:

[0009] case;

[0010] The first air pipe, the second air pipe, and the exhaust pipe are connected to the shell. The first air pipe and the exhaust pipe are located on the same side of the shell, and the second air pipe and the exhaust pipe are located on opposite sides of the shell.

[0011] The refrigeration unit located inside the housing includes a cylinder, and a first intake muffler or a second intake muffler is detachably connected to the air inlet of the cylinder.

[0012] When the air inlet is connected to the first intake silencer, the first air pipe constitutes the intake pipe of the compressor;

[0013] When the air inlet is connected to the second intake muffler, the second air pipe constitutes the compressor's intake pipe. The second air pipe is connected to the inlet of the second intake muffler via a pipe located within the housing. During the development of this compressor design, it can be manufactured with either a same-side intake and exhaust structure or a opposite-side intake and exhaust structure, depending on the layout requirements of different refrigerators. Specifically…

[0014] When the cylinder's air inlet is connected to the first intake muffler, the first air pipe constitutes the compressor's intake pipe. At this time, the intake pipe and the exhaust pipe are located on the same side of the housing. The second air pipe constitutes the compressor's process pipe (used to inject refrigerant into the housing before the compressor leaves the factory), thus making the compressor a structure with intake and exhaust on the same side.

[0015] When the cylinder's inlet is connected to the second intake muffler, the second air pipe constitutes the compressor's intake pipe. At this time, the intake pipe and exhaust pipe are located on opposite sides of the housing, and the first air pipe constitutes the compressor's process pipe (used to inject refrigerant into the housing before the compressor leaves the factory), thus making the compressor a structure with intake and exhaust on opposite sides. Furthermore, the second air pipe is connected to the inlet of the second intake muffler through a pipe located inside the housing. In this way, the refrigerant entering the housing through the second air pipe will enter the inlet of the second intake muffler through the pipe, avoiding the problem that the distance between the second air pipe and the inlet of the second intake muffler is too far, which would cause the refrigerant to mix with the oil mist inside the compressor housing, resulting in more lubricating oil entering the refrigerant circulation system and causing problems such as increased power consumption in the refrigerator.

[0016] Therefore, in developing compressors with both same-side and opposite-side suction and exhaust structures, the casing and refrigeration unit (including the core) can share the same structure. Only a few parts, such as the intake muffler and the piping connecting the second gas pipe to the second intake muffler, need to be changed. This effectively reduces the development cost of refrigerator compressors, decreases the types of compressor parts, and promotes product standardization. Furthermore, the same-side and opposite-side suction and exhaust structures developed in this solution effectively reduce refrigerant and oil mist mixing, preventing excessive lubricating oil from entering the refrigerant circulation system and thus avoiding increased refrigerator power consumption.

[0017] Preferably, the first intake muffler includes a first air inlet and a first exhaust outlet. When the air inlet is connected to the first intake muffler, the first exhaust outlet is sealed to the air inlet. The first air pipe and the first intake muffler are located on the same side of the housing. One end of the first air pipe connected to the housing forms the compressor intake port, which faces the first air inlet and is close to it. The compressor in this design has a same-side intake and exhaust structure. Because the compressor intake port faces the first air inlet of the first intake muffler and is close to it, the refrigerant enters the compressor housing through the compressor intake port. The refrigerant is then quickly drawn into the cylinder of the compressor's refrigeration unit through the intake muffler's inlet for compression. This effectively reduces the mixing of refrigerant and oil mist, preventing excessive lubricating oil from entering the refrigerant circulation system and increasing the refrigerator's power consumption.

[0018] Preferably, the compressor intake port is located on the side wall of the housing, the first intake port of the first intake muffler is located on the side wall of the housing of the first intake muffler, and the distance between the compressor intake port and the first intake port of the first intake muffler is less than 10 mm.

[0019] Preferably, the second intake muffler includes a second air inlet and a second exhaust outlet, with the second air inlet forming the inlet of the second intake muffler. When the air inlet is connected to the second intake muffler, the second exhaust outlet is sealed to the air inlet. The first air pipe and the second intake muffler are located on the same side of the housing, and one end of the second air pipe connected to the housing forms the compressor intake port. The pipeline connects the compressor intake port and the second air inlet. In this design, the compressor has an intake and exhaust side structure.

[0020] Preferably, the second air inlet is located on the bottom wall of the housing of the second intake muffler, with the opening of the second air inlet facing downwards. The compressor in this design has a reverse intake and exhaust structure, and it uses the first air pipe to form the compressor's process pipe, which is used to inject refrigerant into the housing before the compressor leaves the factory. Since the opening of the second air inlet of the second intake muffler faces downwards, it facilitates the connection and installation of pipelines with the second air inlet of the second intake muffler.

[0021] Preferably, one end of the pipeline is sealed to the compressor's intake port, and the other end is connected to the second intake port via a flexible connecting fitting. This facilitates the connection and installation between the pipeline and the second intake port of the second intake muffler.

[0022] Preferably, the flexible connecting fitting is a hose or a tightly wound spring.

[0023] Preferably, the cylinder head of the cylinder is provided with an elastic element, and the cylinder near the air inlet is provided with a cylinder positioning structure, which is a positioning hole or a positioning pin; the first intake muffler is provided with a muffler positioning structure near the first exhaust port, which is a positioning pin or a positioning hole.

[0024] When the air inlet is connected to the first intake muffler, the muffler positioning structure of the first intake muffler cooperates with the cylinder positioning structure. A sealing gasket is provided between the air inlet of the cylinder and the first exhaust port of the first intake muffler, and the first exhaust port of the first intake muffler is pressed against the air inlet of the cylinder under the action of the elastic element, so that the sealing gasket seals the connection between the air inlet of the cylinder and the first exhaust port. In this way, it is convenient to seal and disconnect the first exhaust port of the first intake muffler and the air inlet of the cylinder.

[0025] Preferably, a muffler positioning structure is also provided near the second exhaust port of the second intake muffler. When the intake port is connected to the second intake muffler, the muffler positioning structure of the second intake muffler cooperates with the cylinder positioning structure. A sealing gasket is provided between the cylinder intake port and the second exhaust port of the second intake muffler, and the second exhaust port of the second intake muffler is pressed against the cylinder intake port under the action of an elastic element, so that the sealing gasket seals the connection between the cylinder intake port and the second exhaust port. This facilitates the sealing connection and disassembly between the second exhaust port of the second intake muffler and the cylinder intake port.

[0026] Preferably, the cylinder near the air intake is provided with a cylinder positioning structure, which is a positioning hole or a positioning pin; the first intake muffler is provided with a muffler positioning structure near the first exhaust port, and the second intake muffler is also provided with a muffler positioning structure near the second exhaust port, which is a positioning pin or a positioning hole.

[0027] When the air inlet is connected to the first intake muffler, the muffler positioning structure of the first intake muffler is matched with the cylinder positioning structure. The first exhaust port of the first intake muffler is connected to the cylinder by bolts, and a sealing gasket is provided between the air inlet of the cylinder and the first exhaust port of the first intake muffler.

[0028] When the air inlet is connected to the second intake muffler, the muffler positioning structure of the second intake muffler cooperates with the cylinder positioning structure. The second exhaust port of the second intake muffler is connected to the cylinder by bolts, and a sealing gasket is provided between the air inlet of the cylinder and the second exhaust port of the second intake muffler. This facilitates the sealing connection and disassembly between the first exhaust port of the first intake muffler and the air inlet of the cylinder; it also facilitates the sealing connection and disassembly between the second exhaust port of the second intake muffler and the air inlet of the cylinder.

[0029] The beneficial effects of this invention are as follows: When developing compressors with the intake and exhaust sides on the same side or opposite sides, the structures of the housing and refrigeration unit (including the core) can be shared. Only a few parts, such as the intake muffler and the pipeline connecting the second air pipe to the second intake muffler, need to be changed. Therefore, the development cost of refrigerator compressors can be effectively reduced, the types of compressor parts can be reduced, and product standardization is facilitated. At the same time, the development of compressors with the intake and exhaust sides on the same side or opposite sides can also effectively reduce the mixing of refrigerant and oil mist, avoiding excessive lubricating oil entering the refrigerant circulation system and causing increased power consumption in the refrigerator. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a compressor of this utility model with a suction and exhaust side structure.

[0031] Figure 2 This is a schematic diagram of a compressor of this utility model with a suction and exhaust side structure.

[0032] Figure 3 This is a partial structural diagram of a compressor of this utility model using a first intake silencer.

[0033] Figure 4 This is a partial structural diagram of a compressor of this utility model using a second intake muffler.

[0034] In the picture:

[0035] Casing 1;

[0036] Cylinder 2, intake port 2.0, cylinder head 2.1;

[0037] Second intake muffler 3, second air inlet 3.1, second exhaust outlet 3.2;

[0038] First trachea 4;

[0039] 5. Closely wound springs;

[0040] Pipeline 6;

[0041] Second trachea 7;

[0042] First intake muffler 8, first exhaust port 8.1;

[0043] Exhaust pipe 9. Detailed Implementation

[0044] Specific Implementation Example 1, such as Figure 1 , Figure 2 As shown, a compressor includes a housing 1, a refrigeration unit, a first gas pipe 4, a second gas pipe 7, and an exhaust pipe 9. The housing 1 has a sealed inner cavity. The refrigeration unit is disposed within the sealed inner cavity of the housing 1. The first gas pipe 4, the second gas pipe 7, and the exhaust pipe 9 are all located outside the housing 1. The first gas pipe 4, the second gas pipe 7, and the exhaust pipe 9 are all sealed to the housing 1. The first gas pipe 4, the second gas pipe 7, and the exhaust pipe 9 are all connected to the sealed inner cavity of the housing 1, wherein the first gas pipe 4 and the exhaust pipe 9 are located on the same side of the housing 1, and the second gas pipe 7 and the exhaust pipe 9 are located on opposite sides of the housing 1.

[0045] The refrigeration unit includes a cylinder 2. The cylinder 2 has an air inlet 2.0. A first intake muffler 8 or a second intake muffler 3 is detachably connected to the air inlet 2.0 of the cylinder 2.

[0046] like Figure 1 As shown, when the air inlet 2.0 is connected to the first intake muffler 8, the first air pipe 4 constitutes the intake pipe of the compressor, and the second air pipe 7 constitutes the process pipe of the compressor. The process pipe is used to inject refrigerant into the housing 1 before the compressor leaves the factory.

[0047] like Figure 2 As shown, when the air inlet 2.0 is connected to the second intake muffler 3, the second air pipe 7 constitutes the intake pipe of the compressor; the second air pipe 7 is connected to the inlet of the second intake muffler 3 through the pipe 6 located inside the housing 1; the first air pipe 4 constitutes the process pipe of the compressor, which is used to inject refrigerant into the housing 1 before the compressor leaves the factory. The pipe 6 is located inside the sealed inner cavity of the housing 1.

[0048] During the development of this embodiment, the compressor can be manufactured with either a suction and exhaust side structure or a suction and exhaust side structure, depending on the different refrigerator layout requirements. Specifically,

[0049] like Figure 1 As shown, when the air inlet 2.0 of cylinder 2 is connected to the first intake muffler 8, the first air pipe 4 constitutes the intake pipe of the compressor. At this time, the intake pipe and the exhaust pipe 9 are located on the same side of the housing 1; the second air pipe 7 constitutes the process pipe of the compressor (used to inject refrigerant into the housing 1 before the compressor leaves the factory), so that the compressor becomes a structure with intake and exhaust on the same side.

[0050] like Figure 2As shown, when the air inlet 2.0 of cylinder 2 is connected to the second intake muffler 3, the second air pipe 7 constitutes the intake pipe of the compressor. At this time, the intake pipe and the exhaust pipe 9 are located on both sides of the housing 1, and the first air pipe 4 constitutes the process pipe of the compressor (used to inject refrigerant into the housing 1 before the compressor leaves the factory), thus making the compressor a structure with intake and exhaust on opposite sides. The second air pipe 7 is connected to the inlet of the second intake muffler 3 through the pipe 6 located in the housing 1. In this way, the refrigerant entering the housing 1 through the second air pipe 7 will enter the inlet of the second intake muffler 3 through the pipe 6, thus avoiding the problem that the distance between the second air pipe 7 and the air inlet of the second intake muffler 3 is too far, which would cause the refrigerant to mix with the oil mist in the housing 1 of the compressor, and more lubricating oil would enter the refrigerant circulation system, resulting in increased power consumption of the refrigerator.

[0051] In this embodiment, when developing compressors with both same-side and opposite-side suction and exhaust structures, the structures of the housing 1 and the refrigeration unit (including the core) can be shared. Only a few parts, such as the intake muffler and the "pipeline 6 connecting the second air pipe 7 and the second intake muffler 3," need to be changed. Therefore, the development cost of the refrigerator compressor can be effectively reduced, the number of compressor parts can be decreased, and product standardization is facilitated. Simultaneously, the same-side and opposite-side suction and exhaust structures developed in this solution can effectively reduce refrigerant and oil mist mixing, preventing excessive lubricating oil from entering the refrigerant circulation system and thus avoiding increased refrigerator power consumption.

[0052] Specific embodiment two, such as Figures 1-4 As shown, a compressor includes a housing 1, a refrigeration unit, a first gas pipe 4, a second gas pipe 7, and an exhaust pipe 9. The housing 1 has a sealed inner cavity. The refrigeration unit is disposed within the sealed inner cavity of the housing 1. The first gas pipe 4, the second gas pipe 7, and the exhaust pipe 9 are all located outside the housing 1. The first gas pipe 4, the second gas pipe 7, and the exhaust pipe 9 are all sealed to the housing 1. The first gas pipe 4, the second gas pipe 7, and the exhaust pipe 9 are all connected to the sealed inner cavity of the housing 1, wherein the first gas pipe 4 and the exhaust pipe 9 are located on the same side of the housing 1, and the second gas pipe 7 and the exhaust pipe 9 are located on opposite sides of the housing 1.

[0053] The refrigeration unit includes a cylinder 2. The cylinder 2 has an air inlet 2.0. A first intake muffler 8 or a second intake muffler 3 is detachably connected to the air inlet 2.0 of the cylinder 2. The first intake muffler 8 includes a first air inlet and a first exhaust port 8.1. The second intake muffler 3 includes a second air inlet 3.1 and a second exhaust port 3.2.

[0054] like Figure 1 , Figure 3As shown, when the air inlet 2.0 is connected to the first intake muffler 8, the first exhaust port 8.1 of the first intake muffler 8 is sealed to the air inlet 2.0; the first air pipe 4 constitutes the compressor's intake pipe; the second air pipe 7 constitutes the compressor's process pipe, which is used to inject refrigerant into the housing 1 before the compressor leaves the factory; the first air pipe 4 and the first intake muffler 8 are located on the same side of the housing 1; the end of the first air pipe 4 connected to the housing 1 constitutes the compressor's intake port, which faces the first air inlet and is close to the first air inlet. The compressor in this design has a same-side intake and exhaust structure. Because the compressor's suction port faces the first air inlet and is close to the first air inlet, the refrigerant enters the compressor housing 1 through the compressor suction port. The refrigerant is then quickly drawn into the cylinder 2 of the compressor's refrigeration unit through the inlet of the suction muffler and compressed. This effectively reduces the mixing of refrigerant and oil mist, preventing excessive lubricating oil from entering the refrigerant circulation system and causing increased power consumption in the refrigerator.

[0055] like Figure 2 , Figure 4 As shown, when the air inlet 2.0 is connected to the second intake muffler 3, the second exhaust port 3.2 of the second intake muffler 3 is sealed to the air inlet 2.0; the second air pipe 7 constitutes the compressor's intake pipe; the first air pipe 4 constitutes the compressor's process pipe, which is used to inject refrigerant into the housing 1 before the compressor leaves the factory; the first air pipe 4 and the second intake muffler 3 are located on the same side of the housing 1; the end of the second air pipe 7 connected to the housing 1 constitutes the compressor's intake port; the second air pipe 7 is connected to the inlet of the second intake muffler 3 through a pipe 6 located inside the housing 1 (in this embodiment, the second air inlet 3.1 of the second intake muffler constitutes the inlet of the second intake muffler), specifically, the pipe 6 connects the compressor's intake port to the second air inlet 3.1 of the second intake muffler 3. The compressor in this scheme has a structure where the intake and exhaust ports are on opposite sides. Since the second air pipe 7 is connected to the second air inlet 3.1 of the second intake muffler 3 through the pipe 6 located inside the housing 1, the refrigerant entering the housing 1 through the second air pipe 7 will enter the second air inlet 3.1 of the second intake muffler 3 through the pipe 6. This avoids the problem that if the distance between the second air pipe 7 and the second air inlet 3.1 of the second intake muffler 3 is too far, the refrigerant will mix with the oil mist inside the compressor housing 1, and more lubricating oil will enter the refrigerant circulation system, causing problems such as increased power consumption of the refrigerator.

[0056] During the development of the compressor in this embodiment, it can be manufactured with either a same-side suction and exhaust structure or a opposite-side suction and exhaust structure, depending on the different refrigerator layout requirements. Furthermore, when developing either the same-side or opposite-side suction and exhaust structure, the structures of the housing 1 and the refrigeration unit (including the core) can be shared. Only a few parts, such as the suction muffler and the "pipeline 6 connecting the second air pipe 7 and the second suction muffler 3," need to be changed. Therefore, this effectively reduces the development cost of the refrigerator compressor, reduces the types of compressor parts, and facilitates product standardization. Simultaneously, the same-side and opposite-side suction and exhaust structures of the compressor developed in this solution can effectively reduce refrigerant and oil mist mixing, preventing excessive lubricating oil from entering the refrigerant circulation system and thus avoiding increased refrigerator power consumption.

[0057] In one implementation, such as Figure 1 As shown, when the air inlet 2.0 is connected to the first intake muffler 8, one end of the first air pipe 4 connected to the housing 1 constitutes the compressor intake port, which is located on the side wall of the housing 1. The first air inlet is located on the side wall of the housing of the first intake muffler, and the distance between the compressor intake port and the first air inlet is less than 10 mm. For example, the distance between the compressor intake port and the first air inlet is 4-8 mm.

[0058] In another implementation, such as Figure 2 , Figure 4 As shown, when the air inlet 2.0 is connected to the second intake muffler 3, the second air inlet 3.1 of the second intake muffler 3 is located on the bottom wall of the housing of the second intake muffler 3, and the opening of the second air inlet 3.1 faces downward. The compressor in this embodiment has a suction and exhaust side structure, and it uses the first air pipe 4 to form the process pipe of the compressor, which is used to inject refrigerant into the housing 1 before the compressor leaves the factory; since the opening of the second air inlet 3.1 faces downward, it is convenient to connect and install the pipeline 6 with the second air inlet 3.1.

[0059] Furthermore, such as Figure 2 , Figure 4 As shown, when the air inlet 2.0 is connected to the second intake muffler 3, the second air pipe 7 is connected to the second air inlet 3.1 of the second intake muffler 3 via a pipe 6 located inside the housing 1. The pipe 6 can be a plastic or metal pipe. The pipe 6 can also be made of different materials depending on the operating environment. For example, in high-temperature areas, a pipe 6 with high thermal conductivity can be used to reduce the lubricating oil temperature and improve reliability; in low-temperature areas, a pipe 6 with low thermal conductivity can be used to improve compressor performance.

[0060] The specific connection method for pipe 6 can be as follows:

[0061] In one embodiment, one end of pipe 6 is sealed to the compressor intake port, and the other end of pipe 6 is connected to the second intake port 3.1 of the second intake muffler 3. Pipe 6 is a rigid pipe.

[0062] In another embodiment, one end of pipe 6 is sealed to the compressor intake port, and the other end of pipe 6 is connected to the second air inlet 3.1 of the second intake muffler 3 via a flexible connecting fitting. This facilitates the connection and installation of pipe 6 and the second air inlet 3.1. One end of the flexible connecting fitting is connected to the other end of pipe 6, and the other end of the flexible connecting fitting is connected to the second air inlet 3.1 of the second intake muffler 3.

[0063] In one example, such as Figure 2 , Figure 4 As shown, the flexible connecting pipe fitting is a tightly wound spring 5. This tightly wound spring refers to a helical spring in which each coil fits tightly together.

[0064] In another example, the flexible connection fitting is a hose. The hose can be a plastic hose or a metal hose.

[0065] In the third example, the flexible connecting pipe is a hose, which is made of corrugated pipe.

[0066] In this specific embodiment, the remaining structure is the same as in specific embodiment one or specific embodiment two, except that...

[0067] Cylinder 2 includes cylinder head 2.1. An elastic element is provided on the cylinder head 2.1 of cylinder 2. The elastic element is a compression spring or an elastic sheet. A cylinder positioning structure is provided on cylinder 2 near the air inlet 2.0. The cylinder positioning structure is a positioning hole or a positioning pin. In this embodiment, the cylinder positioning structure is a positioning hole.

[0068] A muffler positioning structure (located on the outer shell of the first intake muffler 8) is provided near the first exhaust port 8.1 of the first intake muffler 8. A muffler positioning structure (located on the outer shell of the second intake muffler 3) is also provided near the second exhaust port 3.2 of the second intake muffler 3. The muffler positioning structure is a positioning pin or a positioning hole. In this embodiment, the muffler positioning structure is a positioning pin.

[0069] When the air inlet 2.0 is connected to the first intake muffler 8, the muffler positioning structure of the first intake muffler 8 cooperates with the cylinder positioning structure, that is, the positioning pin is inserted into the positioning hole to ensure that the first exhaust port 8.1 of the first intake muffler 8 is aligned with the air inlet 2.0 of the cylinder 2. A sealing gasket is provided between the air inlet 2.0 of the cylinder 2 and the first exhaust port 8.1 of the first intake muffler 8. An elastic element abuts against the first intake muffler 8, and the first exhaust port 8.1 of the first intake muffler 8 is pressed against the air inlet 2.0 of the cylinder 2 under the action of the elastic element, so that the sealing gasket seals the connection between the air inlet 2.0 of the cylinder 2 and the first exhaust port 8.1 of the first intake muffler 8. This facilitates the sealing connection and disassembly between the first exhaust port 8.1 of the first intake muffler 8 and the air inlet 2.0 of the cylinder 2.

[0070] When the air inlet 2.0 is connected to the second intake muffler 3, the muffler positioning structure of the second intake muffler 3 cooperates with the cylinder positioning structure, that is, the positioning pin is inserted into the positioning hole to ensure that the second exhaust port 3.2 of the second intake muffler 3 is aligned with the air inlet 2.0 of the cylinder 2. A sealing gasket is provided between the air inlet 2.0 of the cylinder 2 and the second exhaust port 3.2 of the second intake muffler 3. An elastic element abuts against the second intake muffler 3, and the second exhaust port 3.2 of the second intake muffler 3 is pressed against the air inlet 2.0 of the cylinder 2 under the action of the elastic element, so that the sealing gasket seals the connection between the air inlet 2.0 of the cylinder 2 and the second exhaust port 3.2 of the second intake muffler 3. This facilitates the sealing connection and disassembly between the second exhaust port 3.2 of the second intake muffler 3 and the air inlet 2.0 of the cylinder 2.

[0071] In this specific embodiment four, the remaining structure is the same as in specific embodiment one or specific embodiment two, except that...

[0072] A cylinder positioning structure is provided on the cylinder 2 near the air inlet 2.0. The cylinder positioning structure is a positioning hole or a positioning pin. In this embodiment, the cylinder positioning structure is a positioning hole.

[0073] A muffler positioning structure (located on the outer shell of the first intake muffler 8) is provided near the first exhaust port 8.1 of the first intake muffler 8. A muffler positioning structure (located on the outer shell of the second intake muffler 3) is also provided near the second exhaust port 3.2 of the second intake muffler 3. The muffler positioning structure is a positioning pin or a positioning hole. In this embodiment, the muffler positioning structure is a positioning pin.

[0074] When the air inlet 2.0 is connected to the first intake muffler 8, the muffler positioning structure of the first intake muffler 8 cooperates with the cylinder positioning structure, that is, the positioning pin is inserted into the positioning hole to ensure that the first exhaust port 8.1 of the first intake muffler 8 is aligned with the air inlet 2.0 of the cylinder 2. The first exhaust port 8.1 of the first intake muffler 8 is connected to the cylinder 2 by bolts, and a sealing gasket is provided between the air inlet 2.0 of the cylinder 2 and the first exhaust port 8.1 of the first intake muffler 8. This facilitates the sealed connection and disassembly between the first exhaust port 8.1 of the first intake muffler 8 and the air inlet 2.0 of the cylinder 2.

[0075] When the air inlet 2.0 is connected to the second intake muffler 3, the muffler positioning structure of the second intake muffler 3 cooperates with the cylinder positioning structure, that is, the positioning pin is inserted into the positioning hole to ensure that the second exhaust port 3.2 of the second intake muffler 3 is aligned with the air inlet 2.0 of the cylinder 2. The second exhaust port 3.2 of the second intake muffler 3 is connected to the cylinder 2 by bolts, and a sealing gasket is provided between the air inlet 2.0 of the cylinder 2 and the second exhaust port 3.2 of the second intake muffler 3. This facilitates the sealed connection and disassembly between the second exhaust port 3.2 of the second intake muffler 3 and the air inlet 2.0 of the cylinder 2.

[0076] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A compressor, characterized in that, include: case; The first air pipe, the second air pipe, and the exhaust pipe are connected to the shell. The first air pipe and the exhaust pipe are located on the same side of the shell, and the second air pipe and the exhaust pipe are located on opposite sides of the shell. The refrigeration unit located inside the housing includes a cylinder, and a first intake muffler or a second intake muffler is detachably connected to the air inlet of the cylinder. When the air inlet is connected to the first intake silencer, the first air pipe constitutes the intake pipe of the compressor; When the air inlet is connected to the second intake silencer, the second air pipe constitutes the intake pipe of the compressor, and the second air pipe is connected to the inlet of the second intake silencer through a pipe provided in the housing.

2. A compressor according to claim 1, characterized in that, The first intake muffler includes a first air inlet and a first exhaust outlet; when the air inlet is connected to the first intake muffler, the first exhaust outlet is sealed to the air inlet, the first air pipe and the first intake muffler are located on the same side of the housing, and one end of the first air pipe connected to the housing constitutes the compressor intake port, which faces the first air inlet and is close to the first air inlet.

3. A compressor according to claim 2, characterized in that, The compressor intake port is located on the side wall of the housing, and the first air inlet is located on the side wall of the housing of the first intake muffler, and the distance between the compressor intake port and the first air inlet is less than 10 mm.

4. A compressor according to claim 1, characterized in that, The second intake muffler includes a second air inlet and a second exhaust outlet. The second air inlet constitutes the inlet of the second intake muffler. When the air inlet is connected to the second intake muffler, the second exhaust outlet is sealed to the air inlet. The first air pipe and the second intake muffler are located on the same side of the housing. One end of the second air pipe connected to the housing constitutes the compressor intake port. The pipeline connects the compressor intake port and the second air inlet.

5. A compressor according to claim 4, characterized in that, The second air inlet is located on the bottom wall of the housing of the second intake muffler, with the opening of the second air inlet facing downwards.

6. A compressor according to claim 4 or 5, characterized in that, One end of the pipeline is sealed to the compressor intake port, and the other end of the pipeline is connected to the second intake port through a flexible connecting fitting.

7. A compressor according to claim 6, characterized in that, The flexible connecting pipe is a hose or a tightly wound spring.

8. A compressor according to any one of claims 1-5, characterized in that, The cylinder head of the cylinder is provided with an elastic element, and the cylinder near the air inlet is provided with a cylinder positioning structure, which is a positioning hole or a positioning pin; the first intake muffler is provided with a muffler positioning structure near the first exhaust port, which is a positioning pin or a positioning hole. When the air inlet is connected to the first intake muffler, the muffler positioning structure of the first intake muffler cooperates with the cylinder positioning structure. A sealing gasket is provided between the air inlet of the cylinder and the first exhaust port of the first intake muffler. The first exhaust port of the first intake muffler is pressed against the air inlet of the cylinder under the action of the elastic element, so that the sealing gasket seals the connection between the air inlet of the cylinder and the first exhaust port.

9. A compressor according to claim 8, characterized in that, A muffler positioning structure is also provided near the second exhaust port of the second intake muffler. When the intake port is connected to the second intake muffler, the muffler positioning structure of the second intake muffler cooperates with the cylinder positioning structure. A sealing gasket is provided between the intake port of the cylinder and the second exhaust port of the second intake muffler. The second exhaust port of the second intake muffler is pressed against the intake port of the cylinder under the action of the elastic element, so that the sealing gasket seals the connection between the intake port of the cylinder and the second exhaust port.

10. A compressor according to any one of claims 1-5, characterized in that, The cylinder near the air intake is provided with a cylinder positioning structure, which is a positioning hole or a positioning pin; the first intake muffler is provided with a muffler positioning structure near the first exhaust port, and the second intake muffler is also provided with a muffler positioning structure near the second exhaust port, which is a positioning pin or a positioning hole. When the air inlet is connected to the first intake muffler, the muffler positioning structure of the first intake muffler is matched with the cylinder positioning structure. The first exhaust port of the first intake muffler is connected to the cylinder by bolts, and a sealing gasket is provided between the air inlet of the cylinder and the first exhaust port of the first intake muffler. When the air inlet is connected to the second intake muffler, the muffler positioning structure of the second intake muffler cooperates with the cylinder positioning structure. The second exhaust port of the second intake muffler is connected to the cylinder by bolts, and a sealing gasket is provided between the air inlet of the cylinder and the second exhaust port of the second intake muffler.

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