Compressor and refrigeration equipment

Abstract

The utility model discloses a compressor and refrigeration equipment, relates to compressor technical field, including cylinder cover, first exhaust pipe, silencer, second exhaust pipe and third exhaust pipe that connect in proper order along the exhaust direction, the silencer is located outside crankcase, can reduce the heat transfer from refrigerant to crankcase in the exhaust process, and the heat transfer efficiency is improved. The temperature rise of components, lubricating oil and the like in the crankcase is effectively reduced, the temperature of a refrigerant in the air suction process is reduced, the problem of air suction overheating is solved, and the reliability and efficiency of the compressor are improved. Meanwhile, the third exhaust pipe comprises an elastic spiral section, on one hand, pulsation of a refrigerant in the exhaust process can be reduced, vibration generated in the operation process of the compressor can be buffered, on the other hand, the length of a connecting pipe between the silencer and the outer exhaust pipe can be shortened, the structure is more compact, exhaust resistance is effectively reduced, and the service life of the compressor is prolonged. Exhaust pressure loss is reduced, and the efficiency of the compressor is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressor technical field, especially a kind of compressor and refrigeration equipment. BACKGROUND

[0002] The exhaust cavity of the cylinder head of the traditional reciprocating compressor is connected with the exhaust assembly through the flow-through hole inside the crankcase, and the exhaust assembly is provided with a relatively long exhaust pipe to reduce noise. In this way, during the operation of the compressor, the high-temperature refrigerant after compression flows through the flow-through hole, and the high-temperature refrigerant will emit a large amount of heat to the inside of the crankcase, causing the temperature of the components and lubricating oil in the crankcase to be too high and resulting in failure, reduced reliability, and problems such as superheating of the suction gas. At the same time, the relatively long exhaust pipe will cause a large pressure drop of the refrigerant, affecting the performance of the compressor. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a compressor, which is compact in structure, effectively reduces the temperature rise in the crankcase, improves reliability, and can reduce the pressure drop of the refrigerant and solve the problem of superheating of the suction gas, thereby improving the performance of the compressor.

[0004] The utility model also provides a refrigeration equipment with the above-mentioned compressor.

[0005] According to the compressor of the first aspect of the utility model, the compressor comprises:

[0006] The crankcase is provided with a compression chamber;

[0007] The valve plate assembly is installed on the crankcase and located at the opening of the compression chamber;

[0008] The cylinder head is installed on the valve plate assembly, and the cylinder head is provided with an exhaust cavity and a through hole, the through hole is in communication with the exhaust cavity, and the exhaust cavity is in communication or blocked with the compression chamber through the valve plate assembly;

[0009] The first exhaust pipe is connected to the through hole at one end and communicates with the through hole;

[0010] The muffler is located on the outside of the crankcase and connected to the other end of the first exhaust pipe;

[0011] The second exhaust pipe is connected to the muffler at one end;

[0012] The third exhaust pipe is connected to the other end of the second exhaust pipe at one end, and the other end of the third exhaust pipe is used to connect with the external exhaust pipe of the compressor, and the third exhaust pipe comprises a spiral segment, and the spiral segment has elasticity.

[0013] The compressor according to the first aspect of this utility model has at least the following beneficial effects: The cylinder head's exhaust chamber is connected to a muffler via a first exhaust pipe. The muffler, located outside the crankcase, reduces heat transfer from the refrigerant to the crankcase during exhaust, effectively reducing the temperature rise of components and lubricating oil within the crankcase and lowering the refrigerant temperature during intake, thus solving the problem of intake overheating and improving the compressor's reliability and efficiency. Simultaneously, the muffler is connected to an external exhaust pipe via a third exhaust pipe, which includes a flexible helical section. On one hand, the third exhaust pipe reduces refrigerant pulsation during exhaust and buffers vibrations generated during compressor operation, effectively reducing noise. On the other hand, it significantly shortens the length of the connecting pipe between the muffler and the external exhaust pipe, making the structure more compact and easier to assemble. It also effectively reduces exhaust resistance, lowers refrigerant pressure drop, reduces exhaust pressure loss, and further improves compressor efficiency.

[0014] According to some embodiments of the present invention, the through hole is provided on the side wall of the cylinder head, and the through hole is located on the periphery of the exhaust chamber.

[0015] According to some embodiments of this utility model, the maximum outer diameter of the spiral segment is D, which satisfies: 10mm≤D≤30mm.

[0016] According to some embodiments of this utility model, the number of spiral turns of the spiral segment is N, which satisfies: 3≤N≤6.

[0017] According to some embodiments of the present invention, the end of the second exhaust pipe is sleeved on the outer periphery of the end of the third exhaust pipe, and a first sealing member is provided between the second exhaust pipe and the third exhaust pipe. The first sealing member is arranged around the third exhaust pipe and abuts against the inner peripheral wall of the second exhaust pipe and the outer peripheral wall of the third exhaust pipe.

[0018] According to some embodiments of the present invention, the first sealing element is configured as a sealant or a sealing ring.

[0019] According to some embodiments of the present invention, the third exhaust pipe is configured as a nylon part, a soluble polytetrafluoroethylene part, or a silicone rubber part.

[0020] According to some embodiments of the present invention, the cylinder head is welded to the first exhaust pipe; and / or, the first exhaust pipe is welded to the muffler; and / or, the muffler is welded to the second exhaust pipe.

[0021] According to some embodiments of the present invention, at least one of the cylinder head, the first exhaust pipe, the muffler, and the second exhaust pipe has an outer peripheral wall covered with a heat insulation layer.

[0022] The refrigeration device according to a second aspect of the present invention includes the compressor of the first aspect of the present invention.

[0023] The refrigeration device according to the second aspect embodiment of the present invention has at least the following beneficial effects:

[0024] Because the refrigeration equipment uses the aforementioned compressor, the cylinder head's exhaust chamber is connected to the muffler via the first exhaust pipe. The muffler, located outside the crankcase, reduces heat transfer from the refrigerant to the crankcase during exhaust, effectively lowering the temperature rise of components and lubricating oil within the crankcase and reducing the refrigerant temperature during intake, thus solving the intake overheating problem and improving the compressor's reliability and efficiency. Simultaneously, the muffler is connected to the external exhaust pipe via a third exhaust pipe. This third exhaust pipe reduces refrigerant pulsation during exhaust and buffers vibrations generated during compressor operation, effectively reducing noise. Furthermore, it significantly shortens the length of the connecting pipe between the muffler and the external exhaust pipe, making the structure more compact and easier to assemble. It also effectively reduces exhaust resistance, lowers refrigerant pressure drop, reduces exhaust pressure loss, and further improves compressor efficiency.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0027] Figure 1 This is a perspective view of the compressor in an embodiment of this utility model;

[0028] Figure 2 This is a perspective view of the exhaust assembly in an embodiment of this utility model;

[0029] Figure 3 This is a perspective view of the cylinder head in an embodiment of this utility model;

[0030] Figure 4 This is a partial perspective view of the third exhaust pipe in an embodiment of this utility model;

[0031] Figure 5 This is a cross-sectional view of the connection between the second exhaust pipe and the third exhaust pipe in an embodiment of this utility model;

[0032] Figure 6 This is a cross-sectional view of the connection between the third exhaust pipe and the external exhaust pipe in an embodiment of this utility model.

[0033] Figure label:

[0034] Compressor 100; Housing 101; External exhaust pipe 102; Extension section 1021; Crankcase 103; Connecting rod 104; Crankshaft 105; Cylinder seat 106;

[0035] Cylinder head 110; First exhaust pipe 111; First section 1111; Second section 1112; Second exhaust pipe 112; Exhaust chamber 113; Muffler 114; Third exhaust pipe 115; First connecting end 1151; Second connecting end 1152; Spiral section 1153; Through hole 116; Screw hole 117; Mounting surface 118; Sealing gasket 119; First seal 120; Second seal 121. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, assembling, and cooperating should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] In existing technology, the exhaust chamber of the cylinder head of a traditional reciprocating compressor is connected to the exhaust assembly through a flow hole inside the crankcase. The exhaust assembly also features a relatively long exhaust pipe to reduce noise. However, during compressor operation, the compressed, high-temperature refrigerant flows through the flow hole, releasing a significant amount of heat into the crankcase. This can cause excessively high temperatures in crankcase components and lubricating oil, leading to failure, decreased reliability, and problems such as intake overheating. Furthermore, the long exhaust pipe results in a large pressure drop in the refrigerant, negatively impacting compressor performance.

[0041] To solve the above problems, refer to Figure 1 and Figure 2 As shown, an embodiment of the first aspect of this utility model provides a compressor 100. The compressor 100 includes a housing 101, a crankcase 103 and a power assembly are installed inside the housing 101. The crankcase 103 includes a cylinder block 106, and a compression chamber is provided inside the cylinder block 106. The power assembly includes a motor assembly (not shown), a connecting rod 104, a crankshaft 105 and a piston (not shown). The power assembly is installed inside the crankcase 103. One end of the connecting rod 104 is pivotally connected to the crankshaft 105, and the other end is pivotally connected to the piston. The piston is slidably installed inside the compression chamber of the cylinder block 106. It can be understood that the motor assembly is used to drive the crankshaft 105 to rotate, thereby driving the connecting rod 104 to cause the piston to reciprocate within the cylinder block 106, thus realizing the function of compressing the refrigerant.

[0042] Understandably, the compressor also includes a valve plate assembly, which is mounted on the cylinder seat 106 and located at the opening of the compression chamber.

[0043] It is understood that the compressor also includes an exhaust assembly, which includes a cylinder head 110, a first exhaust pipe 111, a muffler 114, a second exhaust pipe 112, and a third exhaust pipe 115 connected sequentially along the exhaust direction. The muffler 114 is located outside the crankcase 103. The compressor housing 101 is also provided with an external exhaust pipe 102, which is connected to the end of the third exhaust pipe 115 away from the second exhaust pipe 112. The external exhaust pipe 102 is used to discharge refrigerant to the outside of the compressor 100.

[0044] Reference Figure 2It is understandable that the reciprocating motion of the piston in the horizontal direction helps to reduce the height of the compressor 100, which is beneficial for optimizing the spatial layout of the refrigeration equipment where the compressor 100 is located. The cylinder head 110 is mounted and fixed to the valve plate assembly. The cylinder head 110 has a mounting surface 118 that abuts against the valve plate assembly. A sealing gasket 119 is provided on the mounting surface 118 to achieve a sealing installation of the cylinder head 110 and prevent air leakage. It is understandable that the outer periphery of the cylinder head 110 has multiple screw holes 117. The axis of the screw holes 117 is perpendicular to the mounting surface 118. The screw holes 117 are used to pass bolts and achieve the connection and fixation between the cylinder head 110 and the cylinder seat 106.

[0045] Reference Figure 2 and Figure 3 It is understood that the cylinder head 110 has an exhaust chamber 113, which is connected to or blocked by the compression chamber of the cylinder seat 106 via a valve plate assembly. One side of the cylinder head 110 has a through hole 116 connecting to the exhaust chamber 113. The first exhaust pipe 111 is connected to the cylinder head 110 and communicates with the through hole 116. The through hole 116 of the cylinder head 110 is used to discharge compressed refrigerant into the first exhaust pipe 111. It is understood that both the cylinder head 110 and the first exhaust pipe 111 are made of metal, and the cylinder head 110 and the first exhaust pipe 111 are connected by welding, which ensures good connection strength and stability, and achieves a good sealing effect, ensuring reliable operation of the compressor 100.

[0046] It is understandable that the outer wall of the cylinder head 110, which is away from the cylinder seat 106, is close to the inner wall of the housing 101. When the through hole 116 is located on the side wall of the cylinder head 110 and on the periphery of the exhaust chamber 113, the first exhaust pipe 111 can extend outward from the cylinder head 110 along the radial direction of the piston, so as not to occupy the space in the housing 101 along the direction of piston movement, thereby achieving a reasonable spatial layout in the compressor 100.

[0047] In this embodiment, the axial direction of the through hole 116 is perpendicular to the piston's movement direction and parallel to the horizontal plane, causing the first exhaust pipe 111 to extend towards the outer periphery of the cylinder head 110. It is understood that the axial direction of the screw hole 117 is perpendicular to the mounting surface 118. During installation, the cylinder head 110 is engaged with the cylinder seat 106 along the axial direction of the screw hole 117, while the first exhaust pipe 111 extends along the radial direction of the piston. Therefore, interference between the tool or bolt and the first exhaust pipe 111 can be avoided when tightening the bolts, thus facilitating the installation of the cylinder head 110 and the cylinder seat 106, and the connection of the first exhaust pipe 111 to the cylinder head 110.

[0048] It is understood that the first exhaust pipe 111 is curved and includes a first section 1111 and a second section 1112. The first section 1111 is connected to the cylinder head 110, and the second section 1112 is connected to the muffler 114. There is an angle between the length directions of the first section 1111 and the second section 1112, with the angle between 90° and 180°. In this embodiment, the angle between the first section 1111 and the second section 1112 is 90°. It is also understood that the inner walls of the first section 1111 and the second section 1112 have a transitional arc surface, which helps reduce exhaust resistance, avoids noise generation, and improves exhaust efficiency.

[0049] In this embodiment, the first segment 1111 and the second segment 1112 are both parallel to the horizontal plane and have an L-shaped structure. The length direction of the muffler 114 is parallel to the length direction of the second segment 1112, so that the first exhaust pipe 111 and the muffler 114 form an L-shaped structure and extend along the horizontal direction, thereby not occupying the space inside the compressor 100 along the height direction, which is conducive to improving the compactness of the structure, thereby improving the space utilization rate inside the compressor 100, and is conducive to reducing the size of the compressor 100.

[0050] In other embodiments, the axial direction of the through hole 116 is parallel to the piston's direction of movement. Meanwhile, the first segment 1111 is connected to the outer wall of the cylinder head 110 away from the cylinder seat 106, and the length direction of the first segment 1111 is parallel to the piston's direction of movement. The first exhaust pipe 111 has a U-shaped structure. The first segment 1111 and the second segment 1112 are parallel to each other and both extend in the horizontal direction. The axial direction of the muffler 114 is parallel to the horizontal plane, which improves the compactness of the structure by not occupying the space inside the compressor 100 along the height direction.

[0051] It is understood that the muffler 114 is connected to the end of the second section 1112 away from the cylinder head 110. In this embodiment, the muffler 114 is made of metal. The muffler 114 and the second section 1112 are connected by welding, which can ensure good connection strength and connection stability, and can achieve good sealing effect, ensuring reliable operation of the compressor 100.

[0052] Understandably, refrigerant generates airflow pulsations during compression and discharge, which can cause noise and vibration. The muffler 114 absorbs or reduces these vibrations, thereby lowering noise and making the discharged compressed refrigerant more uniform and stable. This reduces noise while improving exhaust efficiency. In this embodiment, the outer peripheral wall of the muffler 114 does not contact the crankcase 103, which helps reduce heat transfer from the refrigerant to the crankcase 103 and decreases the temperature rise of the crankcase 103 and other components.

[0053] Understandably, the exhaust chamber 113 of the cylinder head 110 is connected to the muffler 114 via the first exhaust pipe 111. The muffler 114 is located outside the crankcase 103, preventing the discharged refrigerant from directly contacting the crankcase 103. This reduces the heat transferred from the refrigerant to the crankcase 103 during exhaust, effectively lowering the temperature rise of components and lubricating oil within the crankcase 103. Simultaneously, since the refrigerant enters the compression chamber of the cylinder block 106 during intake, and the cylinder block 106 is part of the crankcase 103, an increase in crankcase 103 temperature leads to an increase in the temperature of the refrigerant in the compression chamber during intake. Therefore, reducing the temperature rise of components within the crankcase 103 lowers the refrigerant temperature during intake, thus solving the intake overheating problem and improving the reliability and efficiency of the compressor 100.

[0054] It is understandable that the outer peripheral walls of at least one of the cylinder head 110, the first exhaust pipe 111, the muffler 114, and the second exhaust pipe 112 are covered with a heat insulation layer. This further reduces heat transfer from the refrigerant to the crankcase 103 during exhaust, thereby reducing heat transfer to the housing 101 and other components, lowering the temperature of components such as the motor assembly, and improving the reliability of the compressor 100. Furthermore, the use of a heat insulation layer reduces heat loss from the refrigerant, contributing to improved operating efficiency of the compressor 100. In this embodiment, the outer peripheral walls of the cylinder head 110, the first exhaust pipe 111, the muffler 114, and the second exhaust pipe 112 are all covered with a heat insulation layer, ensuring good heat insulation and reducing heat transfer.

[0055] Specifically, the insulation layer can be made of materials such as PBT, PTFE, and silicone rubber. These materials have good thermal insulation and cold resistance properties, and are compatible with the refrigerant, which helps to improve the reliability of operation.

[0056] It is understood that in this embodiment, the compressor is used in a high-flow-rate operating condition. Under this condition, the actual displacement is 2-3 times that of a general compressor. As a result, more heat is generated when compressing the refrigerant. By setting the first exhaust pipe 111 and the muffler 114 and ensuring that the first exhaust pipe 111 and the muffler 114 do not directly contact the crankcase 103, the heat transfer of the refrigerant to the crankcase 103 during the exhaust process can be reduced, thereby reducing the temperature rise of the crankcase 103 and solving the problem of intake overheating. This is beneficial to improving the reliability and efficiency of the compressor 100.

[0057] It is understandable that the end of the muffler 114 opposite to the first exhaust pipe 111 is connected to the second exhaust pipe 112. The second exhaust pipe 112 is made of metal and is fixed to the muffler 114 by welding, which can ensure good connection strength and stability, and achieve good sealing effect, thus ensuring the reliable operation of the compressor 100.

[0058] Understandably, the second exhaust pipe 112 is bent so that the end of the second exhaust pipe 112 away from the muffler 114 extends in a direction away from the axis of the muffler 114, thereby making the first exhaust pipe 111, the muffler 114 and the second exhaust pipe 112 arranged in a U-shape and close to the inner peripheral wall of the housing 101, which is beneficial to improving the compactness of the structure and the space utilization rate within the compressor 100.

[0059] Understandably, the end of the second exhaust pipe 112 facing away from the muffler 114 is connected to the third exhaust pipe 115. The third exhaust pipe 115 is configured as a flexible part such as nylon, soluble polytetrafluoroethylene, or silicone rubber. This material has good reliability and high temperature resistance, oil resistance, and refrigerant compatibility, which helps to improve the reliability of the third exhaust pipe 115.

[0060] It is understood that the third exhaust pipe 115 includes a flexible helical section 1153, for example, the helical section 1153 is a helical hose. Therefore, the third exhaust pipe 115 can reduce the pulsation of refrigerant during exhaust and buffer the vibration caused by the reciprocating motion of the piston during the operation of the compressor 100, thereby effectively reducing noise.

[0061] Meanwhile, the original exhaust assembly used a long metal connecting pipe to reduce noise. This metal connecting pipe required multiple bends, resulting in significant exhaust resistance, refrigerant pressure drop, and exhaust loss. Therefore, the third exhaust pipe 115 used in this application can greatly shorten the length of the connecting pipe between the muffler 114 and the external exhaust pipe 102, making the structure more compact and easier to assemble. At the same time, it effectively reduces exhaust resistance, lowers refrigerant pressure drop, reduces exhaust pressure loss, and further improves the efficiency of the compressor 100.

[0062] Reference Figure 4 and Figure 5It is understood that the third exhaust pipe 115 includes a spiral segment 1153, a first connecting end 1151, and a second connecting end 1152. The spiral segment 1153 is located between the first connecting end 1151 and the second connecting end 1152 and is spiral-shaped, and the spiral segment 1153 is elastic. The first connecting end 1151 is connected to one end of the second exhaust pipe 112, and the second connecting end 1152 is connected to one end of the external exhaust pipe 102. It is understood that the spiral segment 1153 has an axis S, and the spiral segment 1153 extends spirally around the axis S. In this embodiment, the axis S forms an angle with the length direction of the muffler 114, thereby arranging the first exhaust pipe 111, the muffler 114, the second exhaust pipe 112, and the third exhaust pipe 115 in a U-shape around the outer periphery of the power assembly, which is beneficial for optimizing the layout within the housing 101 and improving the space utilization within the housing 101. In some embodiments, the first connection end 1151 is located above the second connection end 1152, or the second connection end 1152 is located above the first connection end 1151.

[0063] Reference Figure 2 It is understood that the external exhaust pipe 102 is fixedly installed and passes through the housing 101. The external exhaust pipe 102 also includes an extension section 1021 located inside the housing 101. The extension section 1021 extends vertically, and one end of the extension section 1021 is connected to the second connection end 1152 of the third exhaust pipe 115. It is understood that, on the one hand, the vertically arranged extension section 1021 can reduce the space occupied in the horizontal direction inside the housing 101, which is conducive to improving the compactness of the structure and improving the space utilization rate inside the housing 101; on the other hand, the connection between the extension section 1021 and the second connection end 1152 is located above the extension section 1021, which can facilitate the connection and installation of the third exhaust pipe 115 and the external exhaust pipe 102, which is conducive to improving production efficiency.

[0064] Reference Figure 5 It is understood that the end of the second exhaust pipe 112 is sleeved on the outer periphery of the first connecting end 1151, and a first sealing element 120 is provided between the second exhaust pipe 112 and the first connecting end 1151. The first sealing element 120 is arranged around the first connecting end 1151, and the first sealing element 120 abuts against the inner peripheral wall of the second exhaust pipe 112 and the outer peripheral wall of the first connecting end 1151. This helps to ensure the connection stability and sealing between the third exhaust pipe 115 and the second exhaust pipe 112, thereby ensuring the operational stability of the compressor 100.

[0065] Understandably, the first seal 120 is configured as a sealant, such as reinforced epoxy resin. The sealant can be filled in the gap between the outer peripheral wall of the third exhaust pipe 115 and the inner peripheral wall of the second exhaust pipe 112 by coating or injection. The reinforced epoxy resin has good high temperature resistance, oil resistance and refrigerant compatibility, and can maintain stable performance over a wide temperature range, which is beneficial to maintaining stable airtightness.

[0066] In some embodiments, the first seal 120 is configured as a sealing ring, with its outer peripheral wall in close contact with the inner peripheral wall of the second exhaust pipe 112. Simultaneously, the inner peripheral wall of the first seal 120 is also in close contact with the outer peripheral wall of the third exhaust pipe 115, achieving a seal and thus maintaining good sealing performance. It is understood that the sealing ring can be made of materials such as silicone rubber, which possess good reliability, high temperature resistance, oil resistance, and refrigerant compatibility, maintaining stable performance over a wide temperature range and contributing to stable airtightness.

[0067] Reference Figure 6 It is understood that the end of the external exhaust pipe 102 is sleeved on the outer periphery of the second connecting end 1152 of the third exhaust pipe 115, and a second sealing member 121 is provided between the end of the external exhaust pipe 102 and the second connecting end 1152. The second sealing member 121 is arranged around the second connecting end 1152, and the second sealing member 121 abuts against the inner peripheral wall of the external exhaust pipe 102 and the outer peripheral wall of the second connecting end 1152, which helps to ensure the connection stability and sealing of the third exhaust pipe 115 and the external exhaust pipe 102, thereby ensuring the operational stability of the compressor 100.

[0068] It is understandable that the second seal 121 located between the inner peripheral wall of the external exhaust pipe 102 and the outer peripheral wall of the second connection end 1152 can also be configured as a sealing ring or sealant, which will not be described in detail here.

[0069] Reference Figure 4 The maximum outer diameter of the helical segment 1153 is D, which satisfies: 10mm ≤ D ≤ 30mm. It can be understood that the maximum outer diameter of the helical segment 1153 is twice the maximum distance between the outer circumferential wall of the helical segment 1153 and the axis S. It can be understood that the maximum outer diameter of the helical segment 1153 is measured when the third exhaust pipe 115 is stationary or under no force.

[0070] Understandably, when the maximum outer diameter D of the spiral section 1153 is less than 10mm, the vibration damping effect of the third exhaust pipe 115 is too small, resulting in increased vibration and noise during exhaust and affecting the user experience. When the maximum outer diameter D of the spiral section 1153 is greater than 30mm, the third exhaust pipe 115 becomes too large, occupying too much space inside the compressor 100, which is detrimental to the internal space layout of the compressor 100. Furthermore, the exhaust resistance is high, leading to a larger pressure drop in the refrigerant and reducing the operating efficiency of the compressor 100. Therefore, only when the maximum outer diameter D of the spiral section 1153 satisfies the condition of 10mm ≤ D ≤ 30mm can good vibration damping and noise reduction be ensured while reducing exhaust resistance and improving exhaust efficiency, and also reducing the space occupied.

[0071] Reference Figure 4 The number of helical turns in helical segment 1153 is N, satisfying: 3 ≤ N ≤ 6. It can be understood that the helical direction of helical segment 1153 is either left-handed or right-handed. It can also be understood that the helical trajectory of the axis of helical segment 1153 is a cylindrical helix, meaning the maximum outer diameters at both ends of helical segment 1153 are equal. In some embodiments, the helical trajectory of the axis of helical segment 1153 is a conical helix, meaning the maximum outer diameters at both ends of helical segment 1153 are not equal; the maximum outer diameter at the end of helical segment 1153 near the second exhaust pipe 112 is greater than the maximum outer diameter at the end near the external exhaust pipe 102, or the maximum outer diameter at the end of helical segment 1153 near the second exhaust pipe 112 is smaller than the maximum outer diameter at the end near the external exhaust pipe 102.

[0072] Understandably, when the number of spiral turns N in the spiral section 1153 is less than 3, the number of spiral turns is too small, resulting in poor vibration damping of the third exhaust pipe 115, thus increasing vibration and noise during exhaust. When the number of spiral turns N in the spiral section 1153 is greater than 6, the number of spiral turns is too large, occupying more space inside the compressor 100, which is not conducive to space compactness; furthermore, the total length of the third exhaust pipe 115 increases, leading to greater exhaust resistance, resulting in a larger pressure drop of the refrigerant and reducing the working efficiency of the compressor 100. Therefore, only when the number of spiral turns N in the spiral section 1153 satisfies the condition 3 ≤ N ≤ 6 can good vibration damping and noise reduction effects be ensured while reducing exhaust resistance and improving exhaust efficiency, and also reducing the space occupied.

[0073] The refrigeration equipment according to the second aspect of this utility model includes the compressor of the first aspect of this utility model. The refrigeration equipment includes refrigerators, freezers, etc. It is understood that, since the refrigeration equipment adopts all the technical solutions of the compressor of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0074] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A compressor, characterized in that, include: The crankcase is equipped with a compression chamber; A valve plate assembly is mounted on the crankcase and located at the opening of the compression chamber; A cylinder head is mounted on the valve plate assembly. The cylinder head has an exhaust chamber and a through hole. The through hole communicates with the exhaust chamber. The exhaust chamber is connected to or blocked from the compression chamber via the valve plate assembly. A first exhaust pipe, one end of which is connected to and communicates with the through hole; A muffler is located on the outside of the crankcase and connected to the other end of the first exhaust pipe; A second exhaust pipe, one end of which is connected to the muffler; A third exhaust pipe, one end of which is connected to the other end of the second exhaust pipe, and the other end of which is used to connect to the external exhaust pipe of the compressor, the third exhaust pipe including a spiral section, the spiral section being elastic.

2. The compressor according to claim 1, characterized in that: The through hole is provided on the side wall of the cylinder head, and the through hole is located on the periphery of the exhaust chamber.

3. The compressor according to claim 1, characterized in that: The maximum outer diameter of the spiral segment is D, which satisfies the following condition: 10mm≤D≤30mm.

4. The compressor according to claim 1 or 3, characterized in that: The spiral segment has N spiral turns, satisfying: 3≤N≤6.

5. The compressor according to claim 1, characterized in that: The end of the second exhaust pipe is sleeved on the outer periphery of the end of the third exhaust pipe, and a first sealing member is provided between the second exhaust pipe and the third exhaust pipe. The first sealing member is arranged around the third exhaust pipe and abuts against the inner peripheral wall of the second exhaust pipe and the outer peripheral wall of the third exhaust pipe.

6. The compressor according to claim 5, characterized in that: The first seal is configured as a sealant or a sealing ring.

7. The compressor according to claim 1, characterized in that: The third exhaust pipe is configured as a nylon component, a soluble polytetrafluoroethylene component, or a silicone rubber component.

8. The compressor according to claim 1, characterized in that: The cylinder head is welded to the first exhaust pipe; and / or, the first exhaust pipe is welded to the muffler; and / or, the muffler is welded to the second exhaust pipe.

9. The compressor according to claim 1, characterized in that: The outer peripheral wall of at least one of the cylinder head, the first exhaust pipe, the muffler, and the second exhaust pipe is covered with a heat insulation layer.

10. A refrigeration device, characterized in that, The compressor includes any one of claims 1 to 9.

Images