Compressor and refrigeration equipment

Abstract

The compressor comprises a shell, an air suction silencer, an air suction pipe and a transition pipe, the shell is provided with an inner cavity, and a through hole is formed in the wall body of the shell; the air suction silencer is arranged in the inner cavity and comprises an air inlet pipe; the air suction pipe is installed on the shell and penetrates through the through hole. The transition pipe is arranged in the inner cavity, one end of the transition pipe is connected with the air suction pipe, the other end of the transition pipe is connected with the air inlet pipe, and the transition pipe abuts against the air inlet pipe in the circumferential direction of the transition pipe. According to the compressor, the refrigerant can be prevented from being directly heated in the air suction process, and diffusion of the refrigerant is effectively prevented, so that the suction amount of the refrigerant is increased, the volume efficiency of the compressor is improved, and the overall efficiency of the compressor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and particularly relates to a compressor and a refrigeration device. Background Art

[0002] Reciprocating compressors are widely used in the fields of electrical appliances such as air conditioners and refrigerators. Generally, a silencer is installed inside the compressor to reduce the intake noise. In related technologies, the intake port of the compressor is disconnected from the intake port of the silencer, and negative pressure is used to suck the refrigerant entering from the intake port into the silencer. However, since the intake port is connected to the internal space of the compressor, this intake method will cause some refrigerant to diffuse into the internal space of the compressor, and the refrigerant will be heated by other high-temperature components inside the compressor, resulting in a decrease in volumetric efficiency and a reduction in the efficiency of the compressor. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a compressor, which can block the direct heating of the refrigerant during the intake process and effectively prevent the diffusion of the refrigerant, thereby increasing the intake amount of the refrigerant, improving the volumetric efficiency of the compressor, and further improving the overall efficiency of the compressor.

[0004] The utility model also provides a refrigeration device having the above compressor.

[0005] The compressor according to the first aspect embodiment of the utility model includes a housing having an inner cavity, and a through hole is provided on the wall of the housing; an intake silencer disposed in the inner cavity, the intake silencer including an intake pipe; an intake pipe installed on the housing and passing through the through hole; a transition pipe installed on the housing and located in the inner cavity, one end of the transition pipe is connected to the intake pipe, the other end is connected to the intake pipe, and the transition pipe and the intake pipe are in contact with each other along the circumferential direction of the transition pipe.

[0006] The compressor according to the first aspect embodiment of the utility model has at least the following beneficial effects: By providing a transition pipe between the intake pipe and the intake pipe of the intake silencer, the intake pipe and the intake pipe are connected through the transition pipe, and the transition pipe and the intake pipe are in contact with each other along the circumferential direction to achieve sealing. During the intake process, the refrigerant enters the intake silencer from the intake pipe through the transition pipe and the intake pipe, effectively preventing the leakage of the refrigerant and its diffusion into the inner cavity, thereby ensuring the gas intake amount of the cylinder of the compressor. At the same time, the transition pipe can block other high-temperature components in the housing from directly heating the refrigerant inhaled during the intake process, avoiding the disadvantage of the decrease in the intake amount caused by the expansion of the heated refrigerant, and further ensuring the gas intake amount of the cylinder of the compressor. On the premise that the volume of the cylinder remains unchanged, the volumetric efficiency is effectively improved, and further the overall efficiency of the compressor is improved.

[0007] According to some embodiments of the present utility model, the intake pipe is sleeved on the outer periphery of the transition pipe, and the peripheral edge of the end of the transition pipe abuts against the inner peripheral wall of the intake pipe.

[0008] According to some embodiments of the present utility model, the transition pipe is sleeved on the outer periphery of the intake pipe, and the peripheral edge of the end of the intake pipe abuts against the inner peripheral wall of the transition pipe.

[0009] According to some embodiments of the present utility model, the end face of the air outlet end of the transition pipe abuts against the end face of the air inlet end of the intake pipe.

[0010] According to some embodiments of the present utility model, in the direction from the air inlet end of the transition pipe to the air outlet end of the transition pipe, the inner diameter of the transition pipe gradually increases; and / or, in the direction from the air inlet end of the intake pipe to the air outlet end of the intake pipe, the inner diameter of the intake pipe gradually decreases.

[0011] According to some embodiments of the present utility model, one of the intake pipe and the transition pipe is a hard pipe, and the other is a flexible pipe.

[0012] According to some embodiments of the present utility model, the compressor further includes a cylinder, an inner discharge pipe and an exhaust pipe. The cylinder and the inner discharge pipe are arranged in the inner cavity. The cylinder is provided with a high-pressure cavity. The exhaust pipe is installed on the housing. One end of the inner discharge pipe is connected to the high-pressure cavity, and the other end is connected to the exhaust pipe. The outer periphery of the inner discharge pipe is wrapped with a heat insulation layer.

[0013] According to some embodiments of the present utility model, the heat insulation layer is a heat shrinkable sleeve, and the thickness of the heat shrinkable sleeve is T1, satisfying: 0.025 mm ≤ T1 ≤ 0.5 mm.

[0014] According to some embodiments of the present utility model, the heat insulation layer is a heat insulation coating, and the thickness of the heat insulation coating is T2, satisfying: 20 μm ≤ T2 ≤ 100 μm.

[0015] According to some embodiments of the present utility model, the transition pipe is sleeved on the pipe section of the suction pipe extending into the inner cavity, and the transition pipe is fastened to the suction pipe by a binding member.

[0016] The refrigeration device according to the embodiment of the second aspect of the present utility model includes the compressor according to the embodiment of the first aspect of the present utility model.

[0017] According to the refrigeration equipment of the second aspect embodiment of the present utility model, it has at least the following beneficial effects: Since the above-mentioned compressor is adopted in the refrigeration equipment, by arranging a transition pipe between the suction pipe and the intake pipe of the intake silencer, the suction pipe and the intake pipe are connected through the transition pipe, and the transition pipe and the intake pipe are in circumferential contact with each other to achieve sealing. During the suction process, the refrigerant enters the intake silencer from the suction pipe through the transition pipe and the intake pipe, effectively preventing the refrigerant from leaking and diffusing into the inner cavity, thereby ensuring the gas intake volume of the cylinder of the compressor. At the same time, the transition pipe can block other high-temperature components in the shell from directly heating the refrigerant inhaled during the suction process, avoiding the disadvantage that the refrigerant expands after being heated and causes a decrease in the intake volume, and further ensuring the gas intake volume of the cylinder of the compressor. On the premise that the volume of the cylinder remains unchanged, the volumetric efficiency is effectively improved, and then the overall efficiency of the compressor is improved, and the efficiency of the refrigeration equipment is improved.

[0018] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0020] Figure 1 is a schematic internal structure diagram of the compressor in the embodiment of the present utility model;

[0021] Figure 2 is a schematic connection structure diagram of the suction pipe and the transition pipe in the embodiment of the present utility model;

[0022] Figure 3 is a schematic internal structure diagram of the compressor from another perspective in the embodiment of the present utility model;

[0023] Figure 4 is a schematic structure diagram of the inner discharge pipe in the embodiment of the present utility model.

[0024] REFERENCE MARKS:

[0025] Shell 100; Inner cavity 110;

[0026] Intake silencer 200; Intake pipe 210; First intake end 211; First outlet end 212;

[0027] Suction pipe 300; Annular protrusion 310;

[0028] Transition pipe 400; Second intake end 410; Second outlet end 20; Groove 430;

[0029] High-pressure chamber 500;

[0030] Inner discharge pipe 600;

[0031] Exhaust pipe 700. Detailed implementation manners

[0032] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0035] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", "assembled", "matched", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0036] To reduce noise, a muffler is usually installed in the compressor. The outlet end of the muffler is connected to the inlet end of the pump body of the compressor, and the inlet end of the muffler is disconnected from the suction port on the side wall of the compressor housing. During the suction process, it uses the negative pressure in the muffler to suck the refrigerant inhaled from the suction port into the muffler through the inlet end of the muffler, so that the refrigerant enters the pump body. In this way, during the process of the refrigerant flowing from the suction port to the inlet end of the muffler, part of the refrigerant diffuses into the interior of the compressor housing and is not sucked into the muffler. At the same time, other high-temperature components in the compressor housing will heat the inhaled refrigerant, causing the refrigerant to expand due to heat, reducing the refrigerant intake of the pump body and the volumetric efficiency, resulting in a reduction in the efficiency of the compressor.

[0037] For this reason, with reference to Figures 1 to 4As shown in the figure, an embodiment of the first aspect of the present utility model provides a compressor, which is applied to refrigeration equipment such as air conditioners and refrigerators. As the core power component of the refrigeration equipment, the compressor is mainly used to compress the refrigerant to achieve the purpose of heat exchange through the refrigerant cycle.

[0038] Taking the compressor used in a refrigerator as an example, the specific structure of the compressor will be described in detail below. The compressor is a reciprocating compressor.

[0039] Refer to Figure 1 As shown, it can be understood that the compressor includes a housing 100. The housing 100 is generally in a box structure and has an inner cavity 110, which is formed by connecting the upper and lower parts and mainly functions to support and protect. The compressor also includes a pump body assembly, a motor assembly, and a suction silencer 200 installed in the inner cavity 110 of the housing 100.

[0040] It can be understood that the pump body assembly includes a cylinder, a piston, a connecting rod, a crankshaft, and a crankcase. The cylinder and the crankcase are arranged side by side in the horizontal direction. The crankshaft is arranged in the up and down direction and is rotatably installed in the crankcase. The upper and lower ends of the crankshaft respectively extend out of the crankcase. The cylinder is provided with a compression chamber, a suction port, and an exhaust port communicating with the compression chamber. Among them, the suction port is connected to the suction silencer 200, and the cylinder is also provided with a high-pressure chamber 500 communicating with the exhaust port. The piston is slidably installed in the compression chamber to compress and do work on the inhaled refrigerant. One end of the connecting rod is hinged to the piston, and the other end is rotatably matched with the eccentric part at the upper end of the crankshaft. Therefore, the piston can be driven to slide by the rotation of the crankshaft to achieve compression work.

[0041] It can be understood that the motor assembly is located below the crankcase. The motor assembly includes a stator and a rotor. The stator is installed on the lower part of the housing 100. Generally, a spring is connected between the stator and the housing 100 to provide a buffering effect for the motor assembly to achieve vibration reduction and noise reduction. The rotor is rotatably installed in the inner hole of the stator, and the rotor is fixedly connected to the lower end of the crankshaft. Therefore, under the action of the magnetic field, the rotor can drive the crankshaft to rotate. The crankshaft drives the piston to reciprocate in the compression chamber through the connecting rod to compress and do work on the inhaled refrigerant to obtain high-temperature and high-pressure refrigerant.

[0042] Refer to Figure 2 and Figure 3As shown, it can be understood that the compressor further includes a suction pipe 300 and a discharge pipe 700. Both the suction pipe 300 and the discharge pipe 700 are installed on the side wall of the housing 100 and extend to the outside of the housing 100 to be connected to the refrigeration system of the refrigeration device. Among them, through holes are provided on the side wall of the housing 100, and an annular protrusion 310 is provided on the outer peripheral wall of the suction pipe 300. The suction pipe 300 passes through the through hole, and the annular protrusion 310 abuts against the inner peripheral wall of the housing 100, so that the suction pipe 300 is easily fixed to the housing 100 and difficult to separate from the housing 100, and the connection is stable and reliable. Similarly, the installation structure of the discharge pipe 700 can refer to the installation structure of the suction pipe 300, which will not be elaborated here.

[0043] Refer to Figure 3 and Figure 4 As shown, it can be understood that the compressor further includes an inner discharge pipe 600. The inner discharge pipe 600 is installed in the inner cavity 110 of the housing 100. One end of the inner discharge pipe 600 is communicated with the high-pressure cavity 500, and the other end is connected to the discharge pipe 700. The suction pipe 300 is communicated with the intake end of the suction silencer 200. Therefore, during the operation of the compressor, the refrigerant enters the compressor from the suction pipe 300, and the refrigerant enters the compression cavity of the cylinder through the suction silencer 200, and the intake noise can be effectively reduced in the suction silencer 200. In the compression cavity, the piston compresses and does work on the refrigerant, making the refrigerant become a high-temperature and high-pressure state. The high-temperature and high-pressure refrigerant is discharged successively through the high-pressure cavity 500, the inner discharge pipe 600 and the discharge pipe 700. Generally speaking, the exhaust noise can be effectively reduced in the high-pressure cavity 500.

[0044] Refer to Figure 1As shown, it can be understood that the intake pipe 300 communicates with the intake end of the intake silencer 200. Specifically, the intake silencer 200 includes an intake pipe 210. The two ends of the intake pipe 210 are defined as a first intake end 211 and a first outlet end 212 respectively. Among them, the first outlet end 212 is connected to the intake end of the intake silencer 200. The compressor further includes a transition pipe 400. The transition pipe 400 is fixedly installed on the housing 100 or the intake pipe 300, and the transition pipe 400 is located in the inner cavity 110. The two ends of the transition pipe 400 are defined as a second intake end 410 and a second outlet end 20 respectively. Among them, the second intake end 410 is connected to the intake pipe 300. Specifically, the second intake end 410 is in sealing cooperation with the inner wall of the housing 100. The intake pipe 300 passes through the through hole and extends into the transition pipe 400 through the second intake end 410. The second outlet end 20 of the transition pipe 400 is connected to the first intake end 211 of the intake pipe 210, and the transition pipe 400 and the intake pipe 210 are in contact with each other circumferentially. That is, the circumferential direction here is the circumferential direction of the transition pipe 400, and it can also be understood as the circumferential direction of the intake pipe 210. Therefore, the connection between the transition pipe 400 and the intake pipe 210 can be sealed. That is to say, the intake pipe 210 of the intake silencer 200 is connected to the intake pipe 300 through the transition pipe 400.

[0045] It can be understood that the transition pipe 400 is fixedly installed on the housing 100 by a buckle, and the second intake end 410 of the transition pipe 400 is sleeved on the outer periphery of the intake pipe 300, so as to fix the transition pipe 400 on the housing 100 and connect it to the intake pipe 300, and the transition pipe 400 is installed stably.

[0046] Referring to Figure 2 As shown, it can be understood that in some other embodiments, the transition pipe 400 is sleeved on the pipe section of the intake pipe 300 extending into the inner cavity 110. A groove 430 is provided on the outer peripheral wall of the pipe section of the transition pipe 400 sleeved on the intake pipe 300. The groove 430 is annular. The transition pipe 400 is also wound with a binding member. The binding member can be a steel wire, a pull rope, an elastic rope, etc. The binding member is accommodated in the groove 430, so that the transition pipe 400 can be fastened to the intake pipe 300 through the binding member to fix the transition pipe 400 and connect the transition pipe 400 to the intake pipe 300. The structure is simple and the connection is stable and reliable.

[0047] Therefore, during the operation of the compressor, the refrigerant inhaled from the suction pipe 300 flows through the transition pipe 400 to the intake pipe 210 and then enters the intake muffler 200. In this way, it is possible to prevent leakage of the refrigerant during the process of flowing from the suction pipe 300 to the intake muffler 200, and avoid the drawback that some of the refrigerant diffuses to other positions in the inner cavity 110 without entering the intake muffler 200, effectively increasing the amount of refrigerant in the compression chamber of the cylinder being inhaled. At the same time, during the process of the refrigerant flowing from the suction pipe 300 to the intake muffler 200, the transition pipe 400 reduces to a certain extent the heat transferred from other high-temperature components (such as the pump body assembly, motor assembly, etc.) in the inner cavity 110 to the refrigerant. That is to say, the transition pipe 400 reduces the heating effect of other high-temperature components in the inner cavity 110 on the refrigerant. Due to thermal expansion and contraction, it is possible to avoid the drawback that the inhaled refrigerant expands due to being heated, avoid a decrease in the amount of inhaled refrigerant, and thus increase the amount of refrigerant in the compression chamber of the cylinder being inhaled. In this way, it is possible to ensure and increase the refrigerant intake of the cylinder. On the premise that the volume of the cylinder remains unchanged, the volumetric efficiency of the compressor is effectively improved, thereby improving the overall efficiency of the compressor.

[0048] Referring to Figure 1 As shown, it can be understood that the transition pipe 400 abuts against the intake pipe 210 circumferentially, and the connection between the transition pipe 400 and the intake pipe 210 can be sealed. Specifically, the inner diameter of the first intake end 211 of the intake pipe 210 is larger than the outer diameter of the second outlet end 20 of the transition pipe 400. The intake pipe 210 is sleeved on the outer periphery of the transition pipe 400, and the peripheral edge of the second outlet end 20 of the transition pipe 400 abuts against the inner peripheral wall of the intake pipe 210, so that a seal is achieved between the second outlet end 20 of the transition pipe 400 and the intake pipe 210, preventing leakage of the refrigerant during the process of flowing from the transition pipe 400 to the intake pipe 210, effectively increasing the amount of refrigerant in the compression chamber of the cylinder being inhaled, and improving the volumetric efficiency.

[0049] It can be understood that in some other embodiments, the inner diameter of the second outlet end 20 of the transition pipe 400 is larger than the outer diameter of the first intake end 211 of the intake pipe 210. The transition pipe 400 is sleeved on the outer periphery of the intake pipe 210, and the peripheral edge of the first intake end 211 of the intake pipe 210 abuts against the inner peripheral wall of the transition pipe 400, so that a seal is achieved between the first intake end 211 of the intake pipe 210 and the transition pipe 400. Similarly, it is possible to prevent leakage of the refrigerant during the process of flowing from the transition pipe 400 to the intake pipe 210, effectively increasing the amount of refrigerant in the compression chamber of the cylinder being inhaled, and improving the volumetric efficiency.

[0050] It can be understood that in some other embodiments, the outer diameter of the second air outlet end 20 of the transition pipe 400 is equal to the outer diameter of the first air inlet end 211 of the air inlet pipe 210, and the end face of the second air outlet end 20 of the transition pipe 400 abuts against the end face of the first air inlet end 211 of the air inlet pipe 210. That is to say, the opposite ends of the transition pipe 400 and the air inlet pipe 210 directly abut against each other, so as to achieve sealing between the second air outlet end 20 of the transition pipe 400 and the first air inlet end 211 of the air inlet pipe 210. Similarly, it can prevent refrigerant from leaking during the process of flowing from the transition pipe 400 to the air inlet pipe 210, effectively increasing the amount of refrigerant inhaled into the compression chamber of the cylinder and improving the volumetric efficiency.

[0051] Referring Figure 1 As shown, it can be understood that when manufacturing the transition pipe 400 and the air inlet pipe 210, it is inevitable that there will be errors in the inner diameter and outer diameter of the second air outlet end 20 of the transition pipe 400, and there will also be errors in the inner diameter and outer diameter of the first air inlet end 211 of the air inlet pipe 210. Therefore, both the transition pipe 400 and the air inlet pipe 210 are arranged in a trumpet shape, and the end of the transition pipe 400 facing the air inlet pipe 210 is the large end, and the end of the air inlet pipe 210 facing the transition pipe 400 is the large end. That is to say, in the direction from the first air inlet end 211 to the first air outlet end 212 of the air inlet pipe 210, the inner diameter of the air inlet pipe 210 gradually decreases, and in the direction from the second air inlet end 410 to the second air outlet end 20 of the transition pipe 400, the inner diameter of the transition pipe 400 gradually increases.

[0052] Referring Figure 1 As shown, it can be understood that for the embodiment in which the air inlet pipe 210 is sleeved on the outer periphery of the transition pipe 400, the maximum inner diameter of the air inlet pipe 210 is greater than the maximum inner diameter of the transition pipe 400 and greater than the maximum outer diameter of the transition pipe 400. Therefore, in the assembly operation of sleeving the air inlet pipe 210 on the outer periphery of the transition pipe 400, the trumpet-shaped air inlet pipe 210 is sleeved on the outer periphery of the second air outlet end 20 of the transition pipe 400, and the peripheral edge of the second air outlet end 20 of the transition pipe 400 abuts against the inner wall of the air inlet pipe 210 to achieve sealing.

[0053] It can be understood that for the embodiment in which the transition pipe 400 is sleeved on the outer periphery of the air inlet pipe 210, the maximum inner diameter of the transition pipe 400 is greater than the maximum inner diameter of the air inlet pipe 210 and greater than the maximum outer diameter of the air inlet pipe 210. Therefore, in the assembly operation of sleeving the transition pipe 400 on the outer periphery of the air inlet pipe 210, the trumpet-shaped air inlet pipe 210 is inserted into the second air outlet end 20 of the transition pipe 400, and the peripheral edge of the first air inlet end 211 of the air inlet pipe 210 abuts against the inner wall of the transition pipe 400 to achieve sealing.

[0054] It can be understood that for an embodiment in which the periphery of the transition pipe 400 abuts against the periphery of the intake pipe 210, generally, the maximum inner diameter of the transition pipe 400 is equal to the maximum inner diameter of the intake pipe 210, and the maximum outer diameter of the transition pipe 400 is equal to the maximum outer diameter of the intake pipe 210. Therefore, when assembling the intake pipe 210 and the transition pipe 400, making the periphery of the first intake end 211 of the intake pipe 210 abut against the periphery of the second outlet end 20 of the transition pipe 400 can achieve sealing.

[0055] It can be understood that in some other embodiments, among the intake pipe 210 and the transition pipe 400, one is in a flared shape and the other is a straight pipe, that is, the pipe diameter is equal everywhere. The flared pipe is sleeved on the outer periphery of the straight pipe, and the periphery of the straight pipe abuts against the inner peripheral wall of the flared pipe. For example, the intake pipe 210 is in a flared shape and the transition pipe 400 is a straight pipe. The intake pipe 210 is sleeved on the outer periphery of the transition pipe 400, and the periphery of the transition pipe 400 abuts against the inner peripheral wall of the intake pipe 210 to achieve sealing. Or the transition pipe 400 is in a flared shape and the intake pipe 210 is a straight pipe. The transition pipe 400 is sleeved on the outer periphery of the intake pipe 210, and the periphery of the intake pipe 210 abuts against the inner peripheral wall of the transition pipe 400 to achieve sealing.

[0056] It can be understood that during the operation of the compressor, vibration is inevitable, and the vibration will cause collision at the docking joint of the intake pipe 210 and the transition pipe 400. For this reason, among the intake pipe 210 and the transition pipe 400, one is a hard pipe, such as a hard plastic pipe, and the other is a flexible pipe, such as a rubber pipe or a soft plastic pipe, etc. The hard pipe is non-deformable, and the flexible pipe can automatically recover after deformation and has a certain elasticity. For example, the intake pipe 210 is a hard pipe and the transition pipe 400 is a flexible pipe, or the intake pipe 210 is a flexible pipe and the transition pipe 400 is a hard pipe. Therefore, the docking joint between the intake pipe 210 and the transition pipe 400 is a hard-soft combination, which can effectively buffer the vibration at the docking joint of the intake pipe 210 and the transition pipe 400 during the operation of the compressor, avoid the problem of damage caused by the mutual collision of the intake pipe 210 and the transition pipe 400, and improve the service life and reliability. In addition, the hard-soft combination at the docking joint of the intake pipe 210 and the transition pipe 400 makes the intake pipe 210 and the transition pipe 400 fit better, which is beneficial to improving the sealing performance.

[0057] It can be understood that since the refrigerant becomes in a high-temperature and high-pressure state after being compressed in the compression chamber, during the process of discharging the high-temperature and high-pressure refrigerant through the inner discharge pipe 600, the heat of the refrigerant will be transferred to the lubricating oil in the inner cavity 110 through the wall of the inner discharge pipe 600, resulting in a decrease in the viscosity of the lubricating oil, a deterioration in the lubrication effect, an increase in the wear of the components in the compressor, and a decrease in reliability. Therefore, a heat insulation layer is wrapped around the outer periphery of the inner discharge pipe 600. The heat insulation layer can be a heat shrinkable sleeve, a heat insulation coating, etc., so as to achieve heat insulation, reduce the heat transferred to the lubricating oil, and improve reliability. For example, the heat insulation layer is a heat shrinkable sleeve, and the heat shrinkable sleeve is shrunk and fixed on the outer periphery of the inner discharge pipe 600 by heating, which is convenient for processing. Or the heat insulation layer is a heat insulation coating, and the heat insulation coating is sprayed on the outer periphery of the inner discharge pipe 600 through a spraying process, so that the heat insulation coating adheres to the outer periphery of the inner discharge pipe 600 to achieve heat insulation.

[0058] Referring to Figure 3 As shown, it can be understood that generally, a spring is sleeved on the outer periphery of the inner discharge pipe 600 to avoid the drawback of large noise caused by resonance between the inner discharge pipe 600 and other components during the exhaust process, and effectively reduce the noise.

[0059] It can be understood that the heat insulation layer is a heat shrinkable sleeve. Define the thickness of the heat shrinkable sleeve as T1, satisfying 0.025 mm ≤ T1 ≤ 0.5 mm. Making T1 ≥ 0.025 mm can avoid the deterioration of the heat insulation effect due to the too small thickness of the heat shrinkable sleeve; making T1 ≤ 0.5 mm can avoid the high cost caused by the too large thickness of the heat shrinkable sleeve, and at the same time, avoid the too thick heat shrinkable sleeve from affecting the installation of the spring on the outer periphery of the inner discharge pipe 600. Therefore, making 0.025 mm ≤ T1 ≤ 0.5 mm, for example, T1 = 0.025 mm, T1 = 0.1 mm, T1 = 0.2 mm, T1 = 0.3 mm, T1 = 0.4 mm or T1 = 0.5 mm, etc., can reduce the cost and ensure the installation space of the spring on the premise of meeting the heat insulation effect.

[0060] It can be understood that the heat insulation layer is a heat insulation coating. Define the thickness of the heat insulation coating as T2, satisfying 20 μm ≤ T2 ≤ 100 μm. Making T2 ≥ 20 μm can avoid the deterioration of the heat insulation effect due to the too small thickness of the heat insulation coating; making T2 ≤ 100 μm can avoid the high cost caused by the too large thickness of the heat insulation coating, and at the same time, avoid the too thick heat insulation coating from affecting the installation of the spring on the outer periphery of the inner discharge pipe 600. Therefore, making 20 μm ≤ T2 ≤ 100 μm, for example, T2 = 20 μm, T2 = 40 μm, T2 = 60 μm, T2 = 80 μm or T2 = 100 μm, etc., can reduce the cost and ensure the installation space of the spring on the premise of meeting the heat insulation effect.

[0061] The refrigeration device according to the second aspect embodiment of the present utility model includes the compressor according to the first aspect embodiment of the present utility model. The refrigeration device can be an air conditioner, a refrigerator, etc., which will not be elaborated here.

[0062] Since the refrigeration equipment adopts all the technical solutions of the compressor in the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment.

[0063] The embodiments of the present utility model have been described in detail above with reference to the drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A compressor, characterized in that include: A shell body having an inner cavity, wherein a wall of the shell body is provided with a through hole; An air suction muffler is arranged in the inner cavity, and the air suction muffler includes an air intake pipe; An air intake pipe, mounted on the shell and passing through the through hole; A transition pipe is arranged in the inner cavity, one end of the transition pipe is connected to the intake pipe, and the other end of the transition pipe is connected to the intake pipe, and the transition pipe and the intake pipe conflict with each other along the circumferential direction of the transition pipe.

2. The compressor according to claim 1, characterized in that: The air intake pipe is sleeved on the outer periphery of the transition pipe, and the end periphery of the transition pipe abuts against the inner peripheral wall of the air intake pipe.

3. The compressor according to claim 1, characterized in that: The transition pipe is sleeved on the outer periphery of the air intake pipe, and the end periphery of the air intake pipe abuts against the inner peripheral wall of the transition pipe.

4. The compressor according to claim 1, characterized in that: The end surface of the air outlet end of the transition pipe abuts against the end surface of the air inlet end of the air inlet pipe.

5. The compressor according to any one of claims 1 to 4, characterized in that: The inner diameter of the transition duct gradually increases from the air inlet end of the transition duct to the air outlet end of the transition duct; and / or, The inner diameter of the air intake pipe gradually decreases from the air intake end of the air intake pipe to the air outlet end of the air intake pipe.

6. The compressor according to any one of claims 1 to 4, characterized in that: One of the air intake pipe and the transition pipe is a hard pipe, and the other is a soft pipe.

7. The compressor according to claim 1, characterized in that: The compressor also includes a cylinder, an inner row of pipes and an exhaust pipe. The cylinder and the inner row of pipes are arranged in the inner cavity. The cylinder is provided with a high-pressure chamber. The exhaust pipe is installed on the shell. One end of the inner row of pipes is connected to the high-pressure chamber, and the other end is connected to the exhaust pipe. The outer periphery of the inner row of pipes is wrapped with a heat insulation layer.

8. The compressor according to claim 7, characterized in that: The heat insulation layer is a heat shrinkable tube, and the thickness of the heat shrinkable tube is T1, which satisfies: 0.025mm≤T1≤0.5mm.

9. The compressor according to claim 7, characterized in that: The heat insulation layer is a heat insulation coating, the thickness of the heat insulation coating is T2, and satisfies: 20μm≤T2≤100μm.

10. The compressor according to claim 1, characterized in that: The transition pipe is sleeved on the pipe section of the air intake pipe extending into the inner cavity, and the transition pipe is fastened to the air intake pipe through a binding piece.

11. Refrigeration equipment, characterized in that A compressor comprising the compressor described in any one of claims 1 to 10.

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