Compressor exhaust assembly, compressor and refrigeration equipment

Abstract

The compressor exhaust assembly comprises an exhaust silencer and an inner exhaust pipe, a silencing cavity is formed in the exhaust silencer, the exhaust silencer is provided with an air inlet communicated with the silencing cavity, an oil storage groove extending downwards is formed in the bottom of the exhaust silencer, and the inner exhaust pipe is arranged in the oil storage groove. The exhaust silencer is provided with a first inner exhaust pipe installation hole in the groove bottom of the oil storage groove, the inner exhaust pipe is installed in the first inner exhaust pipe installation hole, and the air inlet end of the inner exhaust pipe penetrates through the first inner exhaust pipe installation hole and extends into the silencing cavity. An oil drainage hole communicated with the bottom of the oil storage tank is formed in the pipe wall of the inner exhaust pipe. According to the exhaust silencer, the oil drainage hole is formed in the inner exhaust pipe, the refrigerating machine oil in the oil storage tank at the bottom of the exhaust silencer is discharged, normal oil circulation of the compressor is guaranteed, and the reliability of the compressor is greatly improved.

Description

Technical Field

[0001] The invention is used in the field of compressors, and in particular relates to a compressor exhaust component, a compressor and a refrigeration device. Background Art

[0002] The compressor of refrigeration equipment such as household refrigerators usually includes a movement and a housing. The movement is composed of a motor component and a pump body. The compressor pump body is provided with a cylinder head component and a cylinder seat. Driven by the motor, the moving parts of the movement rotate at high speed. In order to ensure the reliability of lubrication of the moving parts, it is necessary to inject refrigeration oil into the compressor housing, and the oil pump drives the refrigeration oil to splash to the friction pairs of moving parts such as connecting rods and pistons to achieve good lubrication. Therefore, it is necessary to ensure that the compressor oil circulation is normal. The household refrigerator compressor is mainly a reciprocating piston compressor. One of the characteristics of the reciprocating compressor is that the compression ratio is very large, so the temperature of the refrigerant is very high after the cylinder is compressed. The high-temperature and high-pressure refrigerant gas flows out from the exhaust hole of the valve plate, enters the aluminum cylinder head, and then enters the exhaust muffler made of metal. There is strong heat conduction in the whole process. The heat is conducted to the space inside the compressor housing. After heat conduction and convection heat exchange, the harmful heat is absorbed by the refrigerant gas in the cavity inside the housing, forming a strong overheating effect, which leads to an increase in the suction temperature of the compressor, forming harmful suction overheating, seriously affecting the suction efficiency of the compressor, and reducing the cooling capacity and performance coefficient of the compressor.

[0003] In order to improve the overheating effect on the exhaust side, plastic exhaust silencers are usually used to reduce harmful heat transfer. Plastic exhaust silencers usually have a large volume and will trap a large amount of refrigeration oil, resulting in a reduction in the compressor oil circulation volume. The compressor cannot obtain effective lubrication and causes wear and jamming.

[0004] The exhaust process of a reciprocating compressor is periodic, so there is a strong exhaust pulsation. In order to improve the exhaust pulsation, the existing plastic exhaust muffler is usually provided with a throttling structure, which produces a strong flow resistance and greatly reduces the performance of the compressor. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a compressor exhaust assembly, a compressor and a refrigeration device.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] In a first aspect, a compressor exhaust assembly comprises an exhaust muffler and an inner exhaust pipe, wherein a silencer cavity is provided inside the exhaust muffler, the exhaust muffler is provided with an air inlet connected to the silencer cavity, an oil storage tank extending downward is provided at the bottom of the exhaust muffler, the exhaust muffler is provided with a first inner exhaust pipe mounting hole at the bottom of the oil storage tank, the inner exhaust pipe is mounted at the first inner exhaust pipe mounting hole, the air inlet end of the inner exhaust pipe extends into the silencer cavity through the first inner exhaust pipe mounting hole, and the pipe wall of the inner exhaust pipe is provided with an oil drain hole connected to the bottom of the oil storage tank.

[0008] In combination with the first aspect, in certain implementations of the first aspect, a partition is provided inside the exhaust muffler, the partition divides the muffler cavity into a plurality of chambers with different volumes, and a channel is provided on the partition.

[0009] In combination with the first aspect and the above-mentioned implementation manner, in some implementation manners of the first aspect, the partition includes a first partition and a second partition, the first partition and the second partition divide the silencing chamber into a first chamber, a second chamber and a third chamber, the first partition is provided with a first channel connecting the first chamber and the second chamber, the second partition is provided with a second channel connecting the second chamber and the third chamber, the first channel and the second channel are staggered, and the air inlet and the first inner exhaust pipe mounting hole are located in the first chamber.

[0010] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the second partition is provided with a second inner exhaust pipe mounting hole, the inner exhaust pipe extends from the first inner exhaust pipe mounting hole into the first chamber, the inner exhaust pipe extends into the second chamber through the first channel of the first partition and is inserted into the second inner exhaust pipe mounting hole, and the first partition limits the inner exhaust pipe to the second inner exhaust pipe mounting hole at the first channel.

[0011] In combination with the first aspect and the above-mentioned implementation methods, in certain implementation methods of the first aspect, the exhaust muffler is provided with a mounting plate on the inner side of the air inlet, the mounting plate is provided with a positioning hole, the inner exhaust pipe extends from the first inner exhaust pipe mounting hole into the first chamber, the inner exhaust pipe extends inward to the top of the first chamber and is inserted into the positioning hole, and the air inlet is connected to the first chamber and the inner exhaust pipe at the same time.

[0012] In combination with the first aspect and the above-mentioned implementation manner, in some implementation manners of the first aspect, the exhaust muffler includes an upper cover and a bottom cover, the upper cover is provided with a top concave cavity with a bottom opening, the top concave cavity is provided with a first upper baffle and a second upper baffle extending toward the bottom, the first upper baffle and the second upper baffle divide the internal space of the upper cover into a first upper chamber, a second upper chamber and a third upper chamber, the bottom cover is provided with a bottom concave cavity with a top opening, the bottom concave cavity is provided with a first lower baffle and a second lower baffle extending toward the top, the first lower baffle and the second lower baffle divide the internal space of the bottom cover into a first lower chamber, a second lower chamber The upper cover and the bottom cover are connected and define the silencer chamber internally, the first upper baffle and the first lower baffle cooperate to form the first baffle, the second upper baffle and the second lower baffle cooperate to form the second baffle, the first upper chamber and the first lower chamber form the first chamber, the second upper chamber and the second lower chamber form the second chamber, the third upper chamber and the third lower chamber form the third chamber, the second inner exhaust pipe mounting hole is an inclined hole arranged on the first lower baffle, and the extension line of the second inner exhaust pipe mounting hole avoids the top edge of the bottom cover upward.

[0013] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the upper cover is made of black plastic, the bottom cover is made of light-transmitting plastic, the top of the bottom cover is provided with a mounting step extending along the circumference of the top opening, the bottom opening of the upper cover is assembled on the mounting step and fastened by infrared laser welding, the inner exhaust pipe is made of black plastic, and the inner exhaust pipe is fastened to the first inner exhaust pipe mounting hole by infrared laser welding.

[0014] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a cylinder head is further included, wherein the cylinder head and the upper cover are integrally manufactured, the air inlet is arranged on the upper cover, and the air inlet is connected to the cylinder head to form an exhaust passage.

[0015] In a second aspect, a compressor comprises the compressor exhaust assembly described in any implementation of the first aspect.

[0016] In a third aspect, a refrigeration device comprises the compressor described in any implementation of the second aspect.

[0017] One of the above technical solutions has at least one of the following advantages or beneficial effects: In the technical solution of the present invention, after the high-temperature and high-pressure refrigerant gas enters the exhaust muffler through the air inlet, the exhaust pulsation is eliminated through the muffler chamber to reduce the exhaust noise. At the same time, the inner exhaust pipe is extended inside the exhaust muffler to guide the airflow to discharge, reduce flow resistance, improve exhaust efficiency, and enhance compressor performance. During this period, a large amount of refrigeration oil intercepted by the exhaust muffler is collected in the oil storage tank. The present invention sets an oil drain hole on the inner exhaust pipe to discharge the refrigeration oil in the oil storage tank at the bottom of the exhaust muffler, thereby ensuring the normal circulation of the compressor oil and greatly improving the reliability of the compressor.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 1 is a schematic structural diagram of an embodiment of a compressor of the present invention;

[0021] Figure 2 It is a schematic structural diagram of an embodiment of a compressor exhaust assembly of the present invention;

[0022] Figure 3 yes Figure 2 A schematic diagram of the external structure of the bottom cover of the illustrated embodiment;

[0023] Figure 4 yes Figure 2 A schematic diagram of the internal structure of the bottom cover of the illustrated embodiment;

[0024] Figure 5 yes Figure 2 A schematic diagram of the second inner exhaust pipe mounting hole structure of the illustrated embodiment;

[0025] Figure 6 yes Figure 2 A schematic diagram of the upper cover structure of the illustrated embodiment;

[0026] Figure 7 is a schematic structural diagram of another embodiment of a compressor exhaust assembly of the present invention;

[0027] Figure 8 yes Figure 7 A schematic diagram of the cylinder head and upper cover structure of the illustrated embodiment;

[0028] Fig. 9 yes Figure 7 A schematic diagram of the positioning hole structure of the illustrated embodiment;

[0029] Fig.10 yes Figure 7 Schematic diagram of the bottom cover structure of the illustrated embodiment. DETAILED DESCRIPTION

[0030] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0031] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0032] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0034] in, Figure 2 and Figure 7 The reference direction coordinate system of the embodiment of the present invention is given. Figure 2 and Figure 7 The embodiment of the present invention is described with reference to the direction shown.

[0035] See also Figure 1 An embodiment of the present invention provides a compressor exhaust assembly, and the shape of the exhaust muffler can be designed to be an irregular shape to maintain a reasonable distance from the inner surface of the compressor housing, the intake muffler, the cylinder seat, etc.

[0036] Specifically, see him 1, Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 The compressor exhaust assembly includes an exhaust muffler 100 and an inner exhaust pipe 200. A muffler cavity is provided inside the exhaust muffler 100. The exhaust muffler 100 is provided with an air inlet 101 connected to the muffler cavity. The air inlet 101 is used to introduce high-temperature and high-pressure refrigerant gas into the muffler cavity. An oil storage tank 102 extending downward is provided at the bottom of the exhaust muffler 100. The oil storage tank 102 has a certain depth. A large amount of refrigeration oil intercepted by the exhaust muffler 100 is collected in the oil storage tank 102. When the compressor is working, the refrigeration oil is discharged with the refrigerant airflow, accumulated in the inner cavity of the exhaust muffler 100, and stored in the oil storage tank 102 of the bottom cover. The exhaust muffler 100 is provided with a first inner exhaust pipe mounting hole 103 at the bottom of the oil storage tank 102, and the inner exhaust pipe 200 is installed in the first inner exhaust pipe mounting hole 103. The air inlet end of the inner exhaust pipe 200 extends into the silencer cavity through the first inner exhaust pipe mounting hole 103, and the tube wall of the inner exhaust pipe 200 is provided with an oil drain hole 201 connected to the bottom of the oil storage tank 102. The oil drain hole 201 is used to discharge the refrigeration oil collected in the bottom cover oil storage tank 102, ensuring that the refrigeration oil circulation is normal and avoiding the refrigeration oil being trapped.

[0037] Combination Figure 2 , Figure 7 In the technical solution of the present invention, after the high-temperature and high-pressure refrigerant gas enters the exhaust muffler 100 through the air inlet 101, the exhaust pulsation is eliminated through the muffler chamber to reduce the exhaust noise. At the same time, the inner exhaust pipe 200 extends inside the exhaust muffler 100 to guide the airflow to discharge, reduce flow resistance, improve exhaust efficiency, and enhance compressor performance. Meanwhile, a large amount of refrigeration oil intercepted by the exhaust muffler 100 is collected in the oil storage tank 102. The present invention provides an oil drain hole 201 on the inner exhaust pipe 200 to discharge the refrigeration oil in the oil storage tank 102 at the bottom of the exhaust muffler 100, thereby ensuring the normal circulation of the compressor oil and greatly improving the reliability of the compressor.

[0038] In some embodiments, the diameter of the oil drain hole 201 is φ0.1 mm to φ1.5 mm.

[0039] In some embodiments, see Figure 2 , Figure 3 The exhaust muffler 100 forms a boss 104 extending outward at the position of the first inner exhaust pipe mounting hole 103, which can increase the length of the first inner exhaust pipe mounting hole 103, thereby increasing the connection length of the inner exhaust pipe 200 in the first inner exhaust pipe mounting hole 103, and improving the stability and sealing of the connection between the inner exhaust pipe 200 and the exhaust muffler 100.

[0040] In some embodiments, see Figure 2 , Figure 7 The exhaust muffler 100 is provided with a partition inside, which divides the muffler cavity into a plurality of chambers with different volumes. The partition is provided with a channel, and the refrigerant gas entering the exhaust muffler 100 can enter the chambers with different volumes through the channel of the partition. The different volumes inside the chambers can reduce noise and muffle exhaust noises of different frequencies.

[0041] Further, in some embodiments, see Figure 2 , Figure 7 The partition includes a first partition 105 and a second partition 106. The first partition 105 and the second partition 106 divide the muffler chamber into a first chamber 107, a second chamber 108 and a third chamber 109. The second chamber 108 is located between the first chamber 107 and the third chamber 109. The first partition 105 is provided with a first channel 110 connecting the first chamber 107 and the second chamber 108. The second partition 106 is provided with a second channel 111 connecting the second chamber 108 and the third chamber 109. The first channel 110 and the second channel 111 are staggered to form a labyrinth structure. The internal volumes of the first chamber 107, the second chamber 108 and the third chamber 109 are different in size, which can reduce and silence the exhaust noise of different frequencies. The labyrinth structure is further formed by the staggered first channel 110 and the second channel 111, which can eliminate the exhaust pulsation. Among them, the air inlet 101 and the first inner exhaust pipe mounting hole 103 are located in the first chamber 107.

[0042] Further, in some embodiments, the exhaust muffler 100 includes an upper cover 112 and a bottom cover 113, see Figure 2 , Figure 6 , Figure 7 , Fig. 9 The upper cover 112 is a dome structure. The upper cover 112 is provided with a top concave cavity with a bottom opening. The top concave cavity is provided with a first upper baffle 114 and a second upper baffle 115 extending toward the bottom. The first upper baffle 114 and the second upper baffle 115 have different heights, forming a maze structure. The first upper baffle 114 and the second upper baffle 115 divide the internal space of the upper cover 112 into a first upper chamber 116, a second upper chamber 117 and a third upper chamber 118. The internal volumes of the chambers are different, which has a noise reduction and silencing effect on exhaust noises of different frequencies.

[0043] See also Figure 2 , Figure 4 , Figure 7 , Fig.10 The bottom cover 113 is provided with a bottom cavity with a top opening, and a first lower partition 119 and a second lower partition 120 extending toward the top are provided in the bottom cavity. The heights of the first lower partition 119 and the second lower partition 120 are different. For example, Figure 4In the illustrated embodiment, the first lower baffle 119 is closer to the first inner exhaust pipe mounting hole 103 and has a smaller height, while the second lower baffle 120 is farther away from the first inner exhaust pipe mounting hole 103 and has a larger height. The first lower baffle 119 and the second lower baffle 120 divide the internal space of the bottom cover 113 into a first lower chamber 121, a second lower chamber 122 and a third lower chamber 123. The upper cover 112 and the bottom cover 113 are connected and define a silencer chamber internally. The first upper baffle 114 and the first lower baffle 119 cooperate to form a first baffle 105, the second upper baffle 115 and the second lower baffle 120 cooperate to form a second baffle 106, the first upper chamber 116 and the first lower chamber 121 form a first chamber 107, the second upper chamber 117 and the second lower chamber 122 form a second chamber 108, and the third upper chamber 118 and the third lower chamber 123 form a third chamber 109, which serves to reduce exhaust pulsation. The internal volumes of the chambers are different, which reduces and silences exhaust noise of different frequencies.

[0044] In some embodiments, see Figure 2-Figure 6 The second partition plate 106 is provided with a second inner exhaust pipe mounting hole 124. The inner exhaust pipe 200 extends from the first inner exhaust pipe mounting hole 103 into the first chamber 107. The inner exhaust pipe 200 passes through the first channel 110 of the first partition plate 105 and extends into the second chamber 108 and is then inserted into the second inner exhaust pipe mounting hole 124. The first partition plate 105 limits the inner exhaust pipe 200 to the second inner exhaust pipe mounting hole 124 at the first channel 110.

[0045] Combination Figure 2 , where the arrows show the flow path of the refrigerant gas. When the compressor is working, the refrigerant gas enters the first chamber 107 of the exhaust muffler 100 from the cylinder head, flows around from the bottom of the first partition 105 to enter the second chamber 108, and then flows around from the top of the second partition 106 to enter the third chamber 109, and finally goes down to the inner exhaust pipe 200 to complete the exhaust process. During the airflow bypass process, it passes through the first chamber 107, the second chamber 108 and the third chamber 109 of unequal volumes, which effectively reduces the exhaust pulsation and the exhaust noise. At the same time, after the refrigeration oil is collected, it is discharged through the oil discharge hole of the plastic inner exhaust pipe 200 to ensure the normal oil circulation.

[0046] See also Figure 5 The second inner exhaust pipe mounting hole 124 is an inclined hole arranged on the first lower partition 119, and the extension line of the second inner exhaust pipe mounting hole 124 avoids the top edge of the bottom cover 113 upward, so that the mold core can be pulled smoothly.

[0047] In some embodiments, see Figure 7-Figure 10The exhaust muffler 100 is provided with a mounting plate 125 on the inner side of the air inlet 101, and the mounting plate 125 is provided with a positioning hole 126 for installing and positioning the inner exhaust pipe 200. The inner exhaust pipe 200 extends from the first inner exhaust pipe mounting hole 103 into the first chamber 107. The inner exhaust pipe 200 extends inward to the top of the first chamber 107 and is inserted into the positioning hole 126. The air inlet 101 is connected with the first chamber 107 and the inner exhaust pipe 200 at the same time.

[0048] Combination Figure 7 , the airflow discharged from the cylinder head can directly enter the inner exhaust pipe 200 and be discharged directly, avoiding the bypass of the airflow, reducing the loss of flow resistance, and improving the exhaust efficiency of the compressor. At the same time, the exhaust pulsation beam in the cylinder head passes through the air inlet 101 of the exhaust muffler 100 and enters the first chamber 107. After the first attenuation, it bypasses from the bottom of the first partition 105 to enter the second chamber 108. After the second attenuation, it bypasses from the top of the second partition 106 to enter the third chamber 109 for the third attenuation. Finally, the peak value of the exhaust pulsation beam is greatly attenuated, effectively reducing the exhaust noise. Because it is the transmission and bypass of the exhaust pulsation beam that eliminates the pulsation energy of the airflow, and does not generate resistance to the flow of the airflow, the flow loss of the airflow is zero, which greatly improves the exhaust efficiency and effectively improves the performance of the compressor.

[0049] The upper cover 112 and the bottom cover 113 may be connected by bonding, fastener connection, or the like.

[0050] In some embodiments, see Figure 2 , Figure 7 The upper cover 112 is made of black plastic, and the bottom cover 113 is made of translucent plastic. The top of the bottom cover 113 is provided with a mounting step 127 extending along the circumference of the top opening. The bottom opening of the upper cover 112 is assembled on the mounting step 127 and fastened by infrared laser welding. During welding, the infrared beam penetrates the translucent bottom cover 113, and the heat is gathered to the end of the upper cover 112, melting the plastic surface. After cooling, the welding is completed. The infrared laser welding is firm, and the compressor has high performance and low noise.

[0051] The inner exhaust pipe 200 is made of black plastic and is fastened to the first inner exhaust pipe mounting hole 103 by infrared laser welding. During welding, the infrared beam penetrates the light-transmitting bottom cover 113, and the heat is gathered on the surface of the black plastic inner exhaust pipe 200, melting the plastic surface, and the welding is completed after cooling. The infrared laser welding is firm, and the compressor has high performance and low noise.

[0052] In some embodiments, see Figure 6-Figure 9The compressor exhaust assembly further includes a cylinder head 300, which is made integrally with the upper cover 112, and the air inlet 101 is arranged on the upper cover 112, and the air inlet 101 is connected with the cylinder head 300 to form an exhaust passage. The cylinder head 300 and the upper cover 112 are made integrally of plastic, which can improve the overheating effect on the exhaust side and reduce harmful heat transfer.

[0053] The present invention has a simple structure, the plastic inner exhaust pipe 200 is accurately positioned, the exhaust noise silencing effect is excellent, the compressor oil circulation is effectively guaranteed, the infrared laser welding is firm, the compressor has high performance and low noise.

[0054] An embodiment of the present invention further provides a compressor, comprising the compressor exhaust assembly in any of the above embodiments.

[0055] An embodiment of the present invention further provides a refrigeration device, comprising the compressor in any of the above embodiments. The refrigeration device includes a refrigerator, an air conditioner, and the like.

[0056] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A compressor exhaust assembly, characterized in that: It includes an exhaust muffler and an inner exhaust pipe, wherein a muffler cavity is arranged inside the exhaust muffler, an air inlet connected to the muffler cavity is arranged on the exhaust muffler, an oil storage tank extending downward is arranged at the bottom of the exhaust muffler, the exhaust muffler is provided with a first inner exhaust pipe mounting hole at the bottom of the oil storage tank, the inner exhaust pipe is mounted on the first inner exhaust pipe mounting hole, an air inlet end of the inner exhaust pipe extends into the muffler cavity through the first inner exhaust pipe mounting hole, and an oil drain hole connected to the bottom of the oil storage tank is arranged on the wall of the inner exhaust pipe.

2. The compressor exhaust assembly according to claim 1, characterized in that A partition is provided inside the exhaust muffler, and the partition divides the muffler cavity into a plurality of chambers with different volumes, and a channel is provided on the partition.

3. The compressor exhaust assembly according to claim 2, characterized in that: The partition includes a first partition and a second partition, and the first partition and the second partition divide the silencing chamber into a first chamber, a second chamber and a third chamber. The first partition is provided with a first channel connecting the first chamber and the second chamber, and the second partition is provided with a second channel connecting the second chamber and the third chamber. The first channel and the second channel are staggered, and the air inlet and the first inner exhaust pipe mounting hole are located in the first chamber.

4. The compressor exhaust assembly according to claim 3, characterized in that: The second partition is provided with a second inner exhaust pipe mounting hole, the inner exhaust pipe extends from the first inner exhaust pipe mounting hole into the first chamber, the inner exhaust pipe passes through the first channel of the first partition and extends into the second chamber and is then inserted into the second inner exhaust pipe mounting hole, and the first partition limits the inner exhaust pipe to the second inner exhaust pipe mounting hole at the first channel.

5. The compressor exhaust assembly according to claim 3, characterized in that: The exhaust muffler is provided with a mounting plate on the inner side of the air inlet, and the mounting plate is provided with a positioning hole. The inner exhaust pipe extends from the first inner exhaust pipe mounting hole into the first chamber, and the inner exhaust pipe extends inward to reach the top of the first chamber and is inserted into the positioning hole. The air inlet is connected to the first chamber and the inner exhaust pipe at the same time.

6. The compressor exhaust assembly according to claim 4, characterized in that The exhaust muffler comprises an upper cover and a bottom cover, the upper cover is provided with a top concave cavity with a bottom opening, the top concave cavity is provided with a first upper baffle and a second upper baffle extending toward the bottom, the first upper baffle and the second upper baffle divide the internal space of the upper cover into a first upper chamber, a second upper chamber and a third upper chamber, the bottom cover is provided with a bottom concave cavity with a top opening, the bottom concave cavity is provided with a first lower baffle and a second lower baffle extending toward the top, the first lower baffle and the second lower baffle divide the internal space of the bottom cover into a first lower chamber, a second lower chamber and a third lower chamber, the upper cover and the The bottom cover is connected and defines the silencer chamber internally, the first upper baffle and the first lower baffle cooperate to form the first baffle, the second upper baffle and the second lower baffle cooperate to form the second baffle, the first upper chamber and the first lower chamber form the first chamber, the second upper chamber and the second lower chamber form the second chamber, the third upper chamber and the third lower chamber form the third chamber, the second inner exhaust pipe mounting hole is an inclined hole arranged on the first lower baffle, and the extension line of the second inner exhaust pipe mounting hole avoids the top edge of the bottom cover upward.

7. The compressor exhaust assembly according to claim 6, characterized in that The upper cover is made of black plastic, the bottom cover is made of light-transmitting plastic, the top of the bottom cover is provided with a mounting step extending along the circumference of the top opening, the bottom opening of the upper cover is assembled on the mounting step and fastened by infrared laser welding, the inner exhaust pipe is made of black plastic, and the inner exhaust pipe is fastened to the first inner exhaust pipe mounting hole by infrared laser welding.

8. The compressor exhaust assembly according to claim 7, characterized in that It also includes a cylinder head, which is made in one piece with the upper cover, the air inlet is arranged on the upper cover, and the air inlet is communicated with the cylinder head to form an exhaust passage.

9. A compressor, characterized in that: The invention comprises the compressor exhaust assembly according to any one of claims 1 to 8.

10. A refrigeration device, characterized in that: Comprising the compressor as claimed in claim 9.

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