Upper flange, air conditioner compressor and air conditioner

Abstract

The invention relates to an upper flange, an air conditioner compressor and an air conditioner, relates to the technical field of air conditioner compressor equipment, and aims to solve the problem of abnormal noise caused by liquid accumulation of the compressor. The upper flange is provided with a liquid drainage channel, and the liquid drainage channel comprises a liquid accumulation groove which is formed in the upper flange of the air conditioner compressor and used for collecting accumulated liquid in the silencing cavity; the liquid drainage groove is formed in the upper flange, and one end of the liquid drainage groove communicates with the liquid accumulation groove; wherein an overflowing hole is formed in the upper flange, the other end of the liquid discharging groove is communicated with the overflowing hole, and accumulated liquid is discharged out of the silencing cavity through the liquid accumulating groove, the liquid discharging groove and the overflowing hole in sequence. According to the silencer, the liquid accumulation groove is formed and used for collecting accumulated liquid in the silencing cavity. And the liquid drainage groove is arranged, and accumulated liquid in the liquid accumulation groove is conveyed to the overflowing hole in time through the liquid drainage groove. Therefore, the accumulated liquid can be discharged out of the silencing cavity from the overflowing hole in time. And therefore, it is ensured that the noise shielding frequency band of the silencer achieves the expected effect.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning compressor equipment, and in particular to an upper flange, an air-conditioning compressor and an air-conditioner. Background Art

[0002] In the traditional air-conditioning compressor industry, small air-conditioning compressors generally use an upper flange single exhaust port for exhaust, and then cover it with a resistive silencer to form a Helmholtz silencer noise reduction method, thereby reducing the compressor exhaust noise. During the exhaust process of small air-conditioning compressors, due to the phenomenon of exhaust liquid, the lubricating liquid and coolant will flow into the silencer cavity through the exhaust port, causing liquid accumulation in the silencer cavity. This liquid accumulation phenomenon causes the cavity mode of the silencer to change, and the expected silencing and noise reduction effect cannot be achieved according to the design principle, which will cause the small air-conditioning compressor to have abnormal noise problems during operation.

[0003] That is to say, the compressor in the prior art has the problem of abnormal noise due to liquid accumulation. Summary of the invention

[0004] The invention provides an upper flange, an air-conditioning compressor and an air-conditioning, which are used to solve the problem of abnormal noise caused by liquid accumulation in the compressor.

[0005] The present invention provides an upper flange, on which a liquid discharge channel is provided, the liquid discharge channel is used to discharge the accumulated liquid in the muffler cavity of the air conditioner compressor, and the liquid discharge channel comprises:

[0006] A liquid accumulation groove is provided on the upper flange body of the air-conditioning compressor and extends along the circumference of the upper flange body, and the liquid accumulation groove is used to collect the accumulated liquid in the muffler cavity;

[0007] A liquid drain trough, one end of which is connected to the liquid accumulation trough;

[0008] Among them, a flow hole is arranged on the upper flange body, and the other end of the drainage groove is connected with the flow hole, and the accumulated liquid is discharged from the silencer cavity through the liquid accumulation groove, the drainage groove and the flow hole in sequence.

[0009] In one embodiment, the upper flange body includes an upper flange plate and a shaft neck arranged on the upper flange plate, an exhaust port is arranged on the flange surface of the upper flange plate, and the liquid accumulation groove is arranged on the flange surface around the central axis of the shaft neck and is spaced apart from the exhaust port.

[0010] In the above embodiment, the liquid accumulation groove is arranged on the flange surface around the central axis of the journal and is spaced apart from the exhaust port. This ensures that the liquid discharged from the flow hole can be gathered in the liquid accumulation groove by gravity and the gas force of the flow hole. Thus, the liquid accumulation function of the liquid accumulation groove is realized.

[0011] In one embodiment, the silencer chamber is a multi-petal silencer chamber, and the liquid accumulation groove is arranged as a petal-shaped structure. The liquid accumulation groove includes a first petal groove, and the first petal groove is connected to the liquid drainage groove. The accumulated liquid is discharged from the silencer chamber through the first petal groove, the liquid drainage groove and the flow hole in sequence. The first petal groove is arranged corresponding to any petal-shaped cavity of the silencer chamber.

[0012] In the above embodiment, since the first petal groove is arranged corresponding to any petal-shaped cavity of the muffler cavity, the liquid in any petal-shaped cavity can quickly gather in the corresponding first petal groove. That is, part of the liquid in the petal-shaped cavity directly falls into the corresponding first petal groove under the action of gravity, and the other part of the liquid can directly flow into the corresponding first petal groove along the inner wall of the petal-shaped cavity, shortening the flow path of the liquid. Thereby, the liquid accumulation function of the liquid accumulation groove is enhanced.

[0013] In one embodiment, the liquid accumulation groove also includes a second petal groove, which is arranged on at least one side of the first petal groove and is connected to the first petal groove. A part of the accumulated liquid is discharged from the silencer cavity through the second petal groove, the first petal groove, the drainage groove and the flow hole in sequence, and another part of the accumulated liquid is discharged from the silencer cavity through the first petal groove, the drainage groove and the flow hole in sequence. The second petal groove is arranged corresponding to another petal-shaped cavity of the silencer cavity, and the other petal-shaped cavity is adjacent to any one of the petal-shaped cavities.

[0014] In the above embodiment, since the second petal groove is arranged corresponding to another petal-shaped cavity of the muffler cavity, the other petal-shaped cavity is adjacent to any petal-shaped cavity. In this way, the liquid in the other petal-shaped cavity can quickly gather in the corresponding second petal groove. That is, part of the liquid in the petal-shaped cavity directly falls into the corresponding second petal groove under the action of gravity, and the other part of the liquid can directly flow into the corresponding second petal groove along the inner wall of the petal-shaped cavity, shortening the flow path of the liquid. Thereby, the liquid accumulation function of the liquid accumulation groove is further enhanced.

[0015] In one embodiment, when the second petal grooves are respectively arranged on both sides of the first petal groove, the second petal grooves and the first petal grooves are configured into a three-petal structure.

[0016] In one embodiment, when the second petal groove is disposed on one side of the first petal groove, the second petal groove and the first petal groove are configured into a double-petal structure.

[0017] In one embodiment, the liquid accumulation groove is an arc-shaped groove, which is connected to the liquid drainage groove, and the accumulated liquid is discharged from the muffler cavity through the arc-shaped groove, the liquid drainage groove and the flow hole in sequence.

[0018] In one embodiment, the drain comprises:

[0019] a first groove surface; and

[0020] A second groove surface, which is arranged opposite to the first groove surface; and

[0021] a third groove surface, which is vertically connected to the first groove surface and the second groove surface;

[0022] One end of the first groove surface and the second groove surface is connected to the liquid accumulation groove, and the other end of the first groove surface and the second groove surface is connected to the flow hole.

[0023] In the above embodiment, the first groove surface, the second groove surface and the third groove surface are configured as a liquid draining groove, and liquid can flow on the first groove surface, the second groove surface and the third groove surface at the same time, and be introduced into the flow hole through the first groove surface, the second groove surface and the third groove surface, thereby realizing the liquid draining function of the liquid draining groove.

[0024] In one embodiment, the horizontal distance between the first groove surface and the second groove surface gradually increases along the flow direction of the effluent, or the horizontal distance between the first groove surface and the second groove surface remains unchanged along the flow direction of the effluent.

[0025] In one embodiment, the cross section of the liquid accumulation groove on the first plane is "U"-shaped, and / or the cross section of the liquid drainage groove on the first plane is "U"-shaped.

[0026] The present invention provides an air-conditioning compressor, comprising:

[0027] Lower flange;

[0028] a crankshaft rotatably disposed on the lower flange;

[0029] A cylinder is sleeved on the outer periphery of the crankshaft and arranged on the lower flange;

[0030] A muffler is sleeved on the journal of the upper flange, and a muffler cavity is formed between the muffler and the upper flange;

[0031] The upper flange is sleeved on the outer circumference of the crankshaft and is arranged on the cylinder.

[0032] The present invention provides an air conditioner, which comprises a refrigeration system, and the refrigeration system comprises the above-mentioned air conditioner compressor.

[0033] Compared with the prior art, the advantages of the present invention are that a liquid accumulation groove is provided and the accumulated liquid in the muffler cavity is collected by using the liquid accumulation groove. A liquid drainage groove is provided and the accumulated liquid in the liquid accumulation groove is timely transported to the flow hole by using the liquid drainage groove. Thus, it is ensured that the accumulated liquid can be discharged from the muffler cavity from the flow hole in time. In this way, the cavity mode of the muffler caused by the accumulation of liquid in the muffler cavity is changed, which causes the muffler to fail to achieve the expected muffler and noise reduction effect according to the design principle. Thus, it is ensured that the noise frequency band that can be shielded by the muffler achieves the desired effect, and the abnormal noise problem caused by the accumulation of liquid in the existing compressor is avoided. Thus, it is ensured that the muffler can work continuously and stably. In addition, the accumulated liquid in the muffler cavity will affect the action of the exhaust valve plate, that is, the exhaust valve plate moves slowly and cannot be opened and closed in time, which reduces the working efficiency of the compressor. The liquid drainage channel provided in this embodiment can discharge the accumulated liquid in the muffler cavity in time, avoid the accumulated liquid from submerging the exhaust valve plate, and thus avoid the problem of slow movement of the exhaust valve plate caused by the accumulation of liquid in the muffler cavity. Thus, it is ensured that the exhaust valve plate can be opened and closed normally. Thus, the working efficiency of the compressor is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the upper flange in the first embodiment of the present invention;

[0036] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper flange in the second embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper flange in the third embodiment of the present invention;

[0038] Figure 4 is a three-dimensional exploded schematic diagram of an air-conditioning compressor in a fourth embodiment of the present invention;

[0039] Figure 5 yes Figure 4 Schematic diagram of the assembly relationship between the middle upper flange and the muffler;

[0040] Figure 6 yes Figure 4 Schematic diagram of the three-dimensional structure of the middle silencer;

[0041] Figure 7 It is a main cross-sectional view of an air-conditioning compressor in the prior art;

[0042] Figure 8 It is the silencer characteristic curve of the silencer chamber.

[0043] Reference numerals:

[0044] 10. Liquid accumulation groove; 11. First petal groove; 12. Second petal groove; 20. Drain groove; 100. Drain channel; 200. Air conditioning compressor; 201. Upper flange; 2011. Flow hole; 2012. Upper flange; 2013. Journal; 2014. Exhaust port; 201. Upper flange; 202. Lower flange; 203. Crankshaft; 204. Cylinder; 205. Muffler; 2051. Muffler bottom; 206. Exhaust valve plate; 201', upper flange; 2011', flow hole; 202', lower flange; 203', crankshaft; 204', cylinder; 205', muffler. DETAILED DESCRIPTION

[0045] The present invention will be further described below in conjunction with the accompanying drawings.

[0046] Embodiment 1

[0047] like Figure 1 As shown, the present invention provides an upper flange 201, on which a drainage channel 100 is provided, and the drainage channel 100 is used to discharge the accumulated liquid in the muffler cavity of the air-conditioning compressor, and the drainage channel 100 includes a liquid accumulation groove 10 and a drainage groove 20. Among them, the liquid accumulation groove 10 is provided on the upper flange body of the air-conditioning compressor 200, and the liquid accumulation groove 10 is used to collect the accumulated liquid in the muffler cavity; the drainage groove 20, one end of which is connected to the liquid accumulation groove 10; the upper flange body is provided with a flow hole 2011, and the other end of the drainage groove 20 is connected to the flow hole 2011, and the accumulated liquid is discharged from the muffler cavity through the liquid accumulation groove 10, the drainage groove 20 and the flow hole 2011 in sequence.

[0048] In the above arrangement, a liquid accumulation tank 10 is provided, and the accumulated liquid in the silencer cavity is collected by using the liquid accumulation tank 10. A liquid drainage tank 20 is provided, and the accumulated liquid in the liquid accumulation tank 10 is transported to the flow hole 2011 in time. This ensures that the accumulated liquid can be discharged from the silencer cavity from the flow hole 2011 in time. This avoids the change in the cavity mode of the silencer caused by the accumulation of liquid in the silencer cavity, which causes the silencer to fail to achieve the expected silencing and noise reduction effect according to the design principle. This ensures that the shieldable noise frequency band of the silencer 205 achieves the desired effect, and avoids the abnormal noise problem caused by the accumulation of liquid in the existing compressor. This ensures that the silencer 205 can work continuously and stably.

[0049] In addition, the accumulated liquid in the muffler cavity will affect the movement of the exhaust valve plate 206, that is, the exhaust valve plate 206 moves slowly and cannot be opened and closed in time, which reduces the working efficiency of the compressor. The discharge channel 100 provided in this embodiment can discharge the accumulated liquid in the muffler cavity in time to prevent the accumulated liquid from flooding the exhaust valve plate 206, so as to avoid the problem of slow movement of the exhaust valve plate 206 caused by the accumulated liquid in the muffler cavity. Thereby ensuring that the exhaust valve plate 206 can be opened and closed normally, thereby improving the working efficiency of the compressor.

[0050] It should be noted that the upper flange 201 includes an upper flange body and a drainage channel 100 disposed on the upper flange body.

[0051] It should be noted that in this embodiment, the function of discharging the accumulated liquid in the muffler cavity is realized by setting the drain channel 100 on the upper flange body, eliminating the influence of the accumulated liquid on the muffler cavity mode, and optimizing the noise reduction function of the muffler. At the same time, the removal of the accumulated liquid in the muffler cavity also reduces the movement resistance of the exhaust valve plate 206, so that the compression chamber of the compressor can be opened and closed more timely, thereby reducing the energy consumption of the compressor and improving its working efficiency.

[0052] Specifically, Figure 1 As shown, in one embodiment, the upper flange body includes an upper flange plate 2012 and a journal 2013 disposed on the upper flange plate 2012. An exhaust port 2014 is disposed on the flange surface of the upper flange plate 2012, and the liquid collection tank 10 is disposed on the flange surface around the central axis of the journal 2013 and is spaced apart from the exhaust port 2014.

[0053] In the above arrangement, the liquid collection groove 10 is arranged on the flange surface around the central axis of the journal 2013 and is spaced apart from the exhaust port 2014. This ensures that the liquid discharged from the flow hole 2011 can be gathered in the liquid collection groove 10 by gravity and the gas force of the flow hole 2011. Thus, the liquid collection function of the liquid collection groove 10 is realized.

[0054] It should be noted that the liquid is usually sprayed into the muffler 205 from the exhaust port 2014. Under the action of the spray force and the liquid's own gravity, a part of the liquid will flow into the liquid accumulation tank 10 along the inner wall of the muffler 205, and a part of the liquid will directly fall into the liquid accumulation tank 10, thereby realizing the liquid accumulation function of the liquid accumulation tank 10.

[0055] Specifically, Figure 1 As shown, in one embodiment, the silencer chamber is a multi-petal silencer chamber, the liquid accumulation groove 10 is arranged as a petal-type structure, the liquid accumulation groove 10 includes a first petal groove 11, the first petal groove 11 is connected with the liquid drainage groove 20, the accumulated liquid is discharged from the silencer chamber through the first petal groove 11, the liquid drainage groove 20 and the flow hole 2011 in sequence, and the first petal groove 11 is arranged corresponding to any petal-shaped cavity of the silencer chamber.

[0056] In the above arrangement, since the first petal groove 11 is arranged corresponding to any petal-shaped cavity of the muffler cavity, the liquid in any petal-shaped cavity can quickly gather in the corresponding first petal groove 11. That is, part of the liquid in the petal-shaped cavity directly falls into the corresponding first petal groove 11 under the action of gravity, and the other part of the liquid can directly flow into the corresponding first petal groove 11 along the inner wall of the petal-shaped cavity, shortening the flow path of the liquid. Thereby, the liquid accumulation function of the liquid accumulation groove 10 is enhanced.

[0057] It should be noted that the "petals" mentioned in this application are not the petals of flowers in the conventional sense, but are petal-shaped shapes known in the field of mufflers, which are essentially the projection shapes of two or three adjacent petal-shaped cavities in a five-petal muffler on a horizontal plane. The "three-petal structure" mentioned below in this application presents a C-shaped structure, with a notch on its side wall for avoiding the mounting hole of the muffler 205.

[0058] Specifically, Figure 1 As shown, in one embodiment, the liquid accumulation groove 10 also includes a second petal groove 12, which is arranged on at least one side of the first petal groove 11 and is connected to the first petal groove 11. A part of the accumulated liquid is discharged from the silencer cavity through the second petal groove 12, the first petal groove 11, the drainage groove 20 and the flow hole 2011 in sequence, and another part of the accumulated liquid is discharged from the silencer cavity through the first petal groove 11, the drainage groove 20 and the flow hole 2011 in sequence. The second petal groove 12 is arranged corresponding to another petal-shaped cavity of the silencer cavity, and the other petal-shaped cavity is adjacent to any one of the petal-shaped cavities.

[0059] In the above arrangement, since the second petal groove 12 is arranged corresponding to another petal-shaped cavity of the muffler cavity, the other petal-shaped cavity is adjacent to any petal-shaped cavity. In this way, the liquid in the other petal-shaped cavity can quickly gather in the corresponding second petal groove 12. That is, part of the liquid in the petal-shaped cavity directly falls into the corresponding second petal groove 12 under the action of gravity, and the other part of the liquid can directly flow into the corresponding second petal groove 12 along the inner wall of the petal-shaped cavity, shortening the flow path of the liquid. Thereby, the liquid accumulation function of the liquid accumulation tank 10 is further enhanced.

[0060] Of course, in an alternative embodiment not shown in the drawings of the present application, the liquid accumulation groove 10 may not be provided with the second petal groove 12, and only the first petal groove 11 may be provided, and the first petal groove 11 is used for liquid accumulation.

[0061] Specifically, Figure 1 As shown, in one embodiment, the second petal grooves 12 are respectively arranged on both sides of the first petal groove 11, and the two second petal grooves 12 and the first petal groove 11 are configured to form a three-petal structure.

[0062] In the above arrangement, two second petal grooves 12 are provided, which increases the liquid accumulation volume of the liquid accumulation groove 10. At the same time, the two second petal grooves 12 are arranged corresponding to the two petal-shaped cavities of the muffler cavity. This shortens the flow path of the liquid, thereby further enhancing the liquid accumulation function of the liquid accumulation groove 10.

[0063] Specifically, Figure 1As shown, in one embodiment, the drain groove 20 includes a first groove surface, a second groove surface and a third groove surface. The second groove surface is arranged opposite to the first groove surface; the third groove surface is vertically connected to the first groove surface and the second groove surface; one end of the first groove surface and the second groove surface is connected to the liquid accumulation groove 10, and the other end of the first groove surface and the second groove surface is connected to the flow hole 2011.

[0064] In the above arrangement, the first groove surface, the second groove surface and the third groove surface are configured to form a liquid drain groove 20, and liquid can flow on the first groove surface, the second groove surface and the third groove surface at the same time, and be introduced into the flow hole 2011 through the first groove surface, the second groove surface and the third groove surface, thereby realizing the liquid drain function of the liquid drain groove 20.

[0065] Specifically, Figure 1 As shown, in one embodiment, the horizontal distance between the first groove surface and the second groove surface gradually increases along the flow direction of the accumulated liquid.

[0066] Specifically, Figure 1 As shown, in one embodiment, the cross section of the liquid collection groove 10 on the first plane (a plane perpendicular to the upper end surface of the upper flange) is "U"-shaped.

[0067] Specifically, Figure 1 As shown, in one embodiment, the cross section of the drainage groove 20 on the first plane is "U"-shaped.

[0068] It should be noted that the first plane in this embodiment is a plane along the circumference of the upper flange body and perpendicular to the above-mentioned flange surface.

[0069] It should be noted that the upper flange has a flange surface, and the muffler 205 has a muffler bottom surface 2051. When assembled, the flange surface and the muffler bottom surface 2051 cooperate, and the upper flange body and the muffler 205 surround a muffler cavity. This drainage groove 20 leads to the outside of the muffler cavity, so that the accumulated liquid in the muffler cavity can be smoothly discharged from the muffler cavity. The drainage groove 20 is small in size, and its drainage flow rate is equal to the pump body drainage flow rate, and there is no function of exhausting gas. The discharged accumulated liquid flows into the outer channel of the pump body through the flow hole 2011, and then flows back to the oil pool along the outer channel of the pump body, realizing the circulation of the lubricating oil.

[0070] Specifically, Figure 1As shown, in one embodiment, a large-area annular drainage groove (liquid accumulation groove 10) and a U-shaped groove (liquid drainage groove 20) are designed on the exhaust side of the upper flange. The cross section of the liquid accumulation groove 10 is U-shaped, consisting of a vertical groove surface and two horizontal groove surfaces. The annular drainage groove surrounds the journal 2013 of the upper flange, is arranged in a C shape, and is arranged in a petal shape, which just corresponds to the petal shape of the muffler 205, and has the characteristic of fully gathering oil. The function of the annular drainage groove is to gather the liquid discharged from the exhaust port 2014 in the groove by gravity and the gas force of the exhaust port. At this time, the liquid will fill the annular drainage groove and the drainage groove 20. The drainage groove 20 is a straight groove, and its function is to connect the outside of the muffler, and use the gas pressure in the muffler cavity to discharge the accumulated liquid in the annular drainage groove and the drainage groove 20 out of the muffler cavity. After the accumulated liquid is discharged, the cavity mode of the muffler cavity meets the expected design frequency, and the noise frequency band can be shielded to achieve the desired effect, solving the abnormal noise problem caused by the accumulated liquid in the existing compressor.

[0071] Embodiment 2

[0072] like Figure 2 As shown, the present invention provides a drainage channel 100, which is used to discharge the accumulated liquid in the muffler cavity of the air-conditioning compressor, and the drainage channel 100 includes a liquid accumulation groove 10 and a liquid drainage groove 20. The liquid accumulation groove 10 is arranged on the upper flange body of the air-conditioning compressor 200, and the liquid accumulation groove 10 is used to collect the accumulated liquid in the muffler cavity; the liquid drainage groove 20, one end of which is connected to the liquid accumulation groove 10; the upper flange body is provided with a flow hole 2011, and the other end of the liquid drainage groove 20 is connected to the flow hole 2011, and the accumulated liquid is discharged from the muffler cavity through the liquid accumulation groove 10, the liquid drainage groove 20 and the flow hole 2011 in sequence.

[0073] In the above arrangement, a liquid accumulation tank 10 is provided, and the accumulated liquid in the silencer cavity is collected by the liquid accumulation tank 10. A liquid drainage tank 20 is provided, and the accumulated liquid in the liquid accumulation tank 10 is transported to the flow hole 2011 in time. This ensures that the accumulated liquid can be discharged from the silencer cavity from the flow hole 2011 in time. This avoids the change in the cavity mode of the silencer caused by the accumulation of liquid in the silencer cavity, which causes the silencer to fail to achieve the expected silencing and noise reduction effect according to the design principle. This ensures that the shieldable noise frequency band of the silencer 205 achieves the desired effect, and avoids the abnormal noise problem caused by the accumulation of liquid in the existing compressor. This ensures that the silencer 205 can work continuously and stably.

[0074] In addition, the accumulated liquid in the muffler cavity will affect the movement of the exhaust valve plate 206, that is, the exhaust valve plate 206 moves slowly and cannot be opened and closed in time, which reduces the working efficiency of the compressor. The discharge channel 100 provided in this embodiment can discharge the accumulated liquid in the muffler cavity in time to prevent the accumulated liquid from flooding the exhaust valve plate 206, so as to avoid the problem of slow movement of the exhaust valve plate 206 caused by the accumulated liquid in the muffler cavity. Thereby ensuring that the exhaust valve plate 206 can be opened and closed normally, thereby improving the working efficiency of the compressor.

[0075] It should be noted that in this embodiment, the function of discharging the accumulated liquid in the muffler cavity is realized by setting the drain channel 100 on the upper flange body, eliminating the influence of the accumulated liquid on the muffler cavity mode, and optimizing the noise reduction function of the muffler. At the same time, the removal of the accumulated liquid in the muffler cavity also reduces the movement resistance of the exhaust valve plate 206, so that the compression chamber of the compressor can be opened and closed more timely, thereby reducing the energy consumption of the compressor and improving its working efficiency.

[0076] Specifically, Figure 2 As shown, in one embodiment, the upper flange body includes an upper flange plate 2012 and a journal 2013 disposed on the upper flange plate 2012. An exhaust port 2014 is disposed on the flange surface of the upper flange plate 2012, and the liquid collection tank 10 is disposed on the flange surface around the central axis of the journal 2013 and is spaced apart from the exhaust port 2014.

[0077] In the above arrangement, the liquid collection groove 10 is arranged on the flange surface around the central axis of the journal 2013 and is spaced apart from the exhaust port 2014. This ensures that the liquid discharged from the flow hole 2011 can be gathered in the liquid collection groove 10 by gravity and the gas force of the flow hole 2011. Thus, the liquid collection function of the liquid collection groove 10 is realized.

[0078] It should be noted that the liquid is usually sprayed into the muffler 205 from the exhaust port 2014. Under the action of the spray force and the liquid's own gravity, a part of the liquid will flow into the liquid accumulation tank 10 along the inner wall of the muffler 205, and a part of the liquid will directly fall into the liquid accumulation tank 10, thereby realizing the liquid accumulation function of the liquid accumulation tank 10.

[0079] Specifically, Figure 2 As shown, in one embodiment, the silencer chamber is a multi-petal silencer chamber, the liquid accumulation groove 10 is arranged as a petal-type structure, the liquid accumulation groove 10 includes a first petal groove 11, the first petal groove 11 is connected with the liquid drainage groove 20, the accumulated liquid is discharged from the silencer chamber through the first petal groove 11, the liquid drainage groove 20 and the flow hole 2011 in sequence, and the first petal groove 11 is arranged corresponding to any petal-shaped cavity of the silencer chamber.

[0080] In the above arrangement, since the first petal groove 11 is arranged corresponding to any petal-shaped cavity of the muffler cavity, the liquid in any petal-shaped cavity can quickly gather in the corresponding first petal groove 11. That is, part of the liquid in the petal-shaped cavity directly falls into the corresponding first petal groove 11 under the action of gravity, and the other part of the liquid can directly flow into the corresponding first petal groove 11 along the inner wall of the petal-shaped cavity, shortening the flow path of the liquid. Thereby, the liquid accumulation function of the liquid accumulation groove 10 is enhanced.

[0081] Specifically, Figure 2 As shown, in one embodiment, the liquid accumulation groove 10 also includes a second petal groove 12, which is arranged on at least one side of the first petal groove 11 and is connected to the first petal groove 11. A part of the accumulated liquid is discharged from the silencer cavity through the second petal groove 12, the first petal groove 11, the drainage groove 20 and the flow hole 2011 in sequence, and another part of the accumulated liquid is discharged from the silencer cavity through the first petal groove 11, the drainage groove 20 and the flow hole 2011 in sequence. The second petal groove 12 is arranged corresponding to another petal-shaped cavity of the silencer cavity, and the other petal-shaped cavity is adjacent to any one of the petal-shaped cavities.

[0082] In the above arrangement, since the second petal groove 12 is arranged corresponding to another petal-shaped cavity of the muffler cavity, the other petal-shaped cavity is adjacent to any petal-shaped cavity. In this way, the liquid in the other petal-shaped cavity can quickly gather in the corresponding second petal groove 12. That is, part of the liquid in the petal-shaped cavity directly falls into the corresponding second petal groove 12 under the action of gravity, and the other part of the liquid can directly flow into the corresponding second petal groove 12 along the inner wall of the petal-shaped cavity, shortening the flow path of the liquid. Thereby, the liquid accumulation function of the liquid accumulation tank 10 is further enhanced.

[0083] Specifically, Figure 2 As shown, in one embodiment, the second petal groove 12 is arranged on one side of the first petal groove 11, and the second petal groove 12 and the first petal groove 11 are configured to form a double-petal structure.

[0084] Specifically, Figure 2 As shown, in one embodiment, the drain groove 20 includes a first groove surface, a second groove surface and a third groove surface. The second groove surface is arranged opposite to the first groove surface; the third groove surface is vertically connected to the first groove surface and the second groove surface; one end of the first groove surface and the second groove surface is connected to the liquid accumulation groove 10, and the other end of the first groove surface and the second groove surface is connected to the flow hole 2011.

[0085] In the above arrangement, the first groove surface, the second groove surface and the third groove surface are configured to form a liquid drain groove 20, and liquid can flow on the first groove surface, the second groove surface and the third groove surface at the same time, and be introduced into the flow hole 2011 through the first groove surface, the second groove surface and the third groove surface, thereby realizing the liquid drain function of the liquid drain groove 20.

[0086] Specifically, Figure 2 As shown, in one embodiment, the horizontal spacing between the first groove surface and the second groove surface is constant.

[0087] Specifically, Figure 2 As shown, in one embodiment, the cross section of the liquid collection groove 10 on the first plane (a plane perpendicular to the upper end surface of the upper flange) is "U"-shaped.

[0088] Specifically, Figure 2 As shown, in one embodiment, the cross section of the drainage groove 20 on the first plane is "U"-shaped.

[0089] It should be noted that the first plane in this embodiment is a plane along the circumference of the upper flange body and perpendicular to the above-mentioned flange surface.

[0090] It should be noted that the upper flange has a flange surface, and the muffler 205 has a muffler bottom surface 2051. When assembled, the flange surface and the muffler bottom surface 2051 cooperate, and the upper flange body and the muffler 205 surround a muffler cavity. This drainage groove 20 leads to the outside of the muffler cavity, so that the accumulated liquid in the muffler cavity can be smoothly discharged from the muffler cavity. The drainage groove 20 is small in size, and its drainage flow rate is equal to the pump body drainage flow rate, and there is no function of exhausting gas. The discharged accumulated liquid flows into the outer channel of the pump body through the flow hole 2011, and then flows back to the oil pool along the outer channel of the pump body, realizing the circulation of the lubricating oil.

[0091] Specifically, Figure 2 As shown, in one embodiment, a large-area annular drainage groove (liquid accumulation groove 10) and a U-shaped groove (liquid drainage groove 20) are designed on the exhaust side of the upper flange. The cross-section of the liquid accumulation groove 10 is U-shaped, consisting of a vertical groove surface and two horizontal groove surfaces. The annular drainage groove surrounds the journal 2013 of the upper flange and is arranged in a petal shape, which corresponds exactly to the two petals of the muffler 205 and has the characteristic of fully gathering the oil.

[0092] It should be noted that the function of the annular drain groove is to gather the liquid discharged from the exhaust port 2014 in the groove by gravity and the gas force of the exhaust port, and the liquid will fill the annular drain groove and the drain groove 20. The drain groove 20 is a straight groove, and its function is to connect the outside of the muffler, and use the gas pressure in the muffler cavity to discharge the accumulated liquid in the annular drain groove and the drain groove 20 out of the muffler cavity. After the accumulated liquid is discharged, the cavity mode of the muffler cavity meets the expected design frequency, and the noise frequency band can be shielded to achieve the desired effect, which solves the abnormal noise problem caused by the accumulated liquid in the existing compressor.

[0093] Embodiment 3

[0094] like Figure 3As shown, the present invention provides a drainage channel 100, which is used to discharge the accumulated liquid in the muffler cavity of the air-conditioning compressor, and the drainage channel 100 includes a liquid accumulation groove 10 and a liquid drainage groove 20. The liquid accumulation groove 10 is arranged on the upper flange body of the air-conditioning compressor 200, and the liquid accumulation groove 10 is used to collect the accumulated liquid in the muffler cavity; the liquid drainage groove 20, one end of which is connected to the liquid accumulation groove 10; the upper flange body is provided with a flow hole 2011, and the other end of the liquid drainage groove 20 is connected to the flow hole 2011, and the accumulated liquid is discharged from the muffler cavity through the liquid accumulation groove 10, the liquid drainage groove 20 and the flow hole 2011 in sequence.

[0095] In the above arrangement, a liquid accumulation tank 10 is provided, and the accumulated liquid in the silencer cavity is collected by the liquid accumulation tank 10. A liquid drainage tank 20 is provided, and the accumulated liquid in the liquid accumulation tank 10 is transported to the flow hole 2011 in time. This ensures that the accumulated liquid can be discharged from the silencer cavity from the flow hole 2011 in time. This avoids the change in the cavity mode of the silencer caused by the accumulation of liquid in the silencer cavity, which causes the silencer to fail to achieve the expected silencing and noise reduction effect according to the design principle. This ensures that the shieldable noise frequency band of the silencer 205 achieves the desired effect, and avoids the abnormal noise problem caused by the accumulation of liquid in the existing compressor. This ensures that the silencer 205 can work continuously and stably.

[0096] In addition, the accumulated liquid in the muffler cavity will affect the movement of the exhaust valve plate 206, that is, the exhaust valve plate 206 moves slowly and cannot be opened and closed in time, which reduces the working efficiency of the compressor. The discharge channel 100 provided in this embodiment can discharge the accumulated liquid in the muffler cavity in time to prevent the accumulated liquid from flooding the exhaust valve plate 206, so as to avoid the problem of slow movement of the exhaust valve plate 206 caused by the accumulated liquid in the muffler cavity. Thereby ensuring that the exhaust valve plate 206 can be opened and closed normally, thereby improving the working efficiency of the compressor.

[0097] It should be noted that in this embodiment, the function of discharging the accumulated liquid in the muffler cavity is realized by setting the drain channel 100 on the upper flange body, eliminating the influence of the accumulated liquid on the muffler cavity mode, and optimizing the noise reduction function of the muffler. At the same time, the removal of the accumulated liquid in the muffler cavity also reduces the movement resistance of the exhaust valve plate 206, so that the compression chamber of the compressor can be opened and closed more timely, thereby reducing the energy consumption of the compressor and improving its working efficiency.

[0098] Specifically, Figure 3 As shown, in one embodiment, the upper flange body includes an upper flange plate 2012 and a journal 2013 disposed on the upper flange plate 2012. An exhaust port 2014 is disposed on the flange surface of the upper flange plate 2012, and the liquid collection tank 10 is disposed on the flange surface around the central axis of the journal 2013 and is spaced apart from the exhaust port 2014.

[0099] In the above arrangement, the liquid collection groove 10 is arranged on the flange surface around the central axis of the journal 2013 and is spaced apart from the exhaust port 2014. This ensures that the liquid discharged from the flow hole 2011 can be gathered in the liquid collection groove 10 by gravity and the gas force of the flow hole 2011. Thus, the liquid collection function of the liquid collection groove 10 is realized.

[0100] It should be noted that the liquid is usually sprayed into the muffler 205 from the exhaust port 2014. Under the action of the spray force and the liquid's own gravity, a part of the liquid will flow into the liquid accumulation tank 10 along the inner wall of the muffler 205, and a part of the liquid will directly fall into the liquid accumulation tank 10, thereby realizing the liquid accumulation function of the liquid accumulation tank 10.

[0101] Specifically, Figure 3 As shown, in one embodiment, the liquid accumulation groove 10 is an arc-shaped groove, which is connected to the liquid discharge groove 20, and the accumulated liquid is discharged from the muffler cavity through the arc-shaped groove, the liquid discharge groove 20 and the flow hole 2011 in sequence.

[0102] It should be noted that, compared with the above-mentioned embodiments 1 and 2, the liquid accumulation groove 10 in the third embodiment does not have the characteristics of petal-shaped arrangement, and is designed as an arc-shaped groove, which has two groove walls arranged at intervals, and the groove walls are regular arc-shaped. This is more conducive to the liquid flowing to the drainage groove 20, but it still has the function of collecting oil, but compared with the drainage grooves in embodiments 1 and 2, its ability to collect oil is relatively poor, but the drainage is smoother, that is, the drainage ability is stronger.

[0103] Specifically, Figure 3 As shown, in one embodiment, the drain groove 20 includes a first groove surface, a second groove surface and a third groove surface. The second groove surface is arranged opposite to the first groove surface; the third groove surface is vertically connected to the first groove surface and the second groove surface; one end of the first groove surface and the second groove surface is connected to the liquid accumulation groove 10, and the other end of the first groove surface and the second groove surface is connected to the flow hole 2011.

[0104] In the above arrangement, the first groove surface, the second groove surface and the third groove surface are configured to form a liquid drain groove 20, and liquid can flow on the first groove surface, the second groove surface and the third groove surface at the same time, and be introduced into the flow hole 2011 through the first groove surface, the second groove surface and the third groove surface, thereby realizing the liquid drain function of the liquid drain groove 20.

[0105] Specifically, Figure 3 As shown, in one embodiment, the horizontal distance between the first groove surface and the second groove surface gradually increases along the flow direction of the accumulated liquid.

[0106] Specifically, Figure 3 As shown, in one embodiment, the cross section of the liquid collection groove 10 on the first plane (a plane perpendicular to the upper end surface of the upper flange) is "U"-shaped.

[0107] Specifically, Figure 3 As shown, in one embodiment, the cross section of the drainage groove 20 on the first plane is "U"-shaped.

[0108] It should be noted that the first plane in this embodiment is a plane along the circumference of the upper flange body and perpendicular to the above-mentioned flange surface.

[0109] It should be noted that the upper flange has a flange surface, and the muffler 205 has a muffler bottom surface 2051. When assembled, the flange surface and the muffler bottom surface 2051 cooperate, and the upper flange body and the muffler 205 surround a muffler cavity. This drainage groove 20 leads to the outside of the muffler cavity, so that the accumulated liquid in the muffler cavity can be smoothly discharged from the muffler cavity. The drainage groove 20 is small in size, and its drainage flow rate is equal to the pump body drainage flow rate, and there is no function of exhausting gas. The discharged accumulated liquid flows into the outer channel of the pump body through the flow hole 2011, and then flows back to the oil pool along the outer channel of the pump body, realizing the circulation of the lubricating oil.

[0110] Specifically, Figure 3 As shown, in one embodiment, a large-area annular drainage groove (liquid accumulation groove 10) and a U-shaped groove (liquid drainage groove 20) are designed on the exhaust side of the upper flange. The cross section of the liquid accumulation groove 10 is U-shaped, consisting of a vertical groove surface and two horizontal groove surfaces. The annular drainage groove surrounds the journal 2013 of the upper flange and is arranged in a C shape, which has the characteristic of gathering oil. The function of the annular drainage groove is to gather the liquid discharged from the exhaust port 2014 in the groove by gravity and the gas force of the exhaust port. At this time, the liquid will fill the annular drainage groove and the drainage groove 20.

[0111] It should be noted that the drain groove 20 is a straight groove, and its function is to connect the outside of the muffler, and use the gas pressure in the muffler cavity to discharge the accumulated liquid in the annular drain groove and the drain groove 20 out of the muffler cavity. After the accumulated liquid is discharged, the cavity mode of the muffler cavity meets the expected design frequency, and the noise frequency band can be shielded to achieve the desired effect, solving the abnormal noise problem caused by the accumulated liquid in the existing compressor.

[0112] Embodiment 4

[0113] like Figure 4As shown, the present invention provides an air-conditioning compressor 200, which includes a lower flange 202, a crankshaft 203, a cylinder 204, an upper flange body, a muffler 205, and a liquid discharge passage 100 in the first embodiment. The crankshaft 203 is rotatably arranged on the lower flange 202; the cylinder 204 is sleeved on the outer periphery of the crankshaft 203 and arranged on the lower flange 202; the upper flange body is sleeved on the outer periphery of the crankshaft 203 and arranged on the cylinder 204; the muffler 205 is sleeved on the journal 2013 of the upper flange body, and a muffler cavity is formed between the muffler 205 and the upper flange body; the liquid discharge passage 100 is arranged on the upper flange body, and is used to discharge the accumulated liquid in the muffler cavity.

[0114] It should be noted that the lower flange 202, the upper flange body and the cylinder 204 define a compression chamber, and when the crankshaft 203 rotates, the gas in the compression chamber can be compressed, thereby realizing the function of the air-conditioning compressor 200. The muffler 205 has a muffler function, which can reduce the noise generated when the air-conditioning compressor 200 is working.

[0115] Specifically, Figure 1 As shown, in one embodiment, the drainage channel 100 is used to discharge the accumulated liquid in the muffler cavity of the air-conditioning compressor, and the drainage channel 100 includes a liquid accumulating groove 10 and a liquid draining groove 20. The liquid accumulating groove 10 is arranged on the upper flange body of the air-conditioning compressor 200, and the liquid accumulating groove 10 is used to collect the accumulated liquid in the muffler cavity; the liquid draining groove 20 is connected to the liquid accumulating groove 10 at one end; the upper flange body is provided with a flow hole 2011, and the other end of the liquid draining groove 20 is connected to the flow hole 2011, and the accumulated liquid is discharged from the muffler cavity through the liquid accumulating groove 10, the liquid draining groove 20 and the flow hole 2011 in sequence.

[0116] Specifically, Figure 1 and Figure 5 As shown, in one embodiment, the upper flange body includes an upper flange plate 2012 and a journal 2013 disposed on the upper flange plate 2012. An exhaust port 2014 is disposed on the flange surface of the upper flange plate 2012, and the liquid collection tank 10 is disposed on the flange surface around the central axis of the journal 2013 and is spaced apart from the exhaust port 2014.

[0117] Specifically, Figure 1 and Figure 6 As shown, in one embodiment, the silencer chamber is a multi-petal silencer chamber, the liquid accumulation groove 10 is arranged as a petal-type structure, the liquid accumulation groove 10 includes a first petal groove 11, the first petal groove 11 is connected with the liquid drainage groove 20, the accumulated liquid is discharged from the silencer chamber through the first petal groove 11, the liquid drainage groove 20 and the flow hole 2011 in sequence, and the first petal groove 11 is arranged corresponding to any petal-shaped cavity of the silencer chamber.

[0118] Specifically, Figure 1As shown, in one embodiment, the liquid accumulation groove 10 also includes a second petal groove 12, which is arranged on at least one side of the first petal groove 11 and is connected to the first petal groove 11. A part of the accumulated liquid is discharged from the silencer cavity through the second petal groove 12, the first petal groove 11, the drainage groove 20 and the flow hole 2011 in sequence, and another part of the accumulated liquid is discharged from the silencer cavity through the first petal groove 11, the drainage groove 20 and the flow hole 2011 in sequence. The second petal groove 12 is arranged corresponding to another petal-shaped cavity of the silencer cavity, and the other petal-shaped cavity is adjacent to any one of the petal-shaped cavities.

[0119] Specifically, Figure 1 As shown, in one embodiment, the second petal grooves 12 are respectively arranged on both sides of the first petal groove 11, and the two second petal grooves 12 and the first petal groove 11 are configured to form a three-petal structure.

[0120] Specifically, Figure 1 As shown, in one embodiment, the drain groove 20 includes a first groove surface, a second groove surface and a third groove surface. The second groove surface is arranged opposite to the first groove surface; the third groove surface is vertically connected to the first groove surface and the second groove surface; one end of the first groove surface and the second groove surface is connected to the liquid accumulation groove 10, and the other end of the first groove surface and the second groove surface is connected to the flow hole 2011.

[0121] Specifically, Figure 1 As shown, in one embodiment, the horizontal distance between the first groove surface and the second groove surface gradually increases along the flow direction of the accumulated liquid.

[0122] Specifically, Figure 1 As shown, in one embodiment, the cross-section of the liquid collection tank 10 on the first plane is "U"-shaped.

[0123] Specifically, Figure 1 As shown, in one embodiment, the cross section of the drainage groove 20 on the first plane is "U"-shaped.

[0124] Specifically, Figure 1 As shown, in one embodiment, a large-area annular drainage groove (liquid accumulation groove 10) and a U-shaped groove (liquid drainage groove 20) are designed on the exhaust side of the upper flange. The cross-section of the liquid accumulation groove 10 is U-shaped, consisting of a vertical groove surface and two horizontal groove surfaces. The annular drainage groove surrounds the journal 2013 of the upper flange, is arranged in a C shape, and is arranged in a petal shape, which corresponds exactly to the petal shape of the muffler 205, and has the characteristic of fully gathering the oil.

[0125] Embodiment 5

[0126] The present invention provides an air conditioner, which includes a refrigeration system, wherein the refrigeration system includes the air conditioner compressor 200 described above.

[0127] Specifically, in one embodiment, the refrigeration system further includes a condenser, an evaporator, a capillary tube, etc. The compressor is responsible for extracting low-temperature and low-pressure refrigerant, releasing heat through the condenser, and then entering the evaporator through the expansion valve to absorb heat, thereby achieving a refrigeration effect.

[0128] Specifically, in one embodiment, the air conditioner also includes a ventilation system, which is responsible for the circulation of indoor and outdoor air, and generally includes an air inlet, an air outlet, a filter, etc. The air inlet inhales outdoor air, passes through the filter, enters the evaporator for heat exchange, and then sends out cold air through the air outlet.

[0129] Specifically, in one embodiment, the air conditioner further includes an electrical control system, which is responsible for the operation control of the air conditioner, including temperature sensors, relays, capacitors, etc. These components ensure the safe operation and temperature control of the air conditioner.

[0130] Specifically, in one embodiment, the air conditioner further includes a box system, which includes outer shells of the indoor unit and the outdoor unit, provides structure and support, and protects internal components.

[0131] like Figure 7 As shown, the compressor in the prior art includes a crankshaft 203', a lower flange 202', a cylinder 204', an upper flange 201' and a muffler 205'. Among them, a flow hole 2011' is provided on the upper flange 201', and a muffler cavity is provided between the upper flange 201' and the muffler 205', and the accumulated liquid usually accumulates in the muffler cavity. The accumulated liquid in the muffler cavity will change the original shape of the air cavity space, and at this time, the gas cavity mode changes, so that the muffler cannot effectively shield the noise of a specific frequency.

[0132] like Figure 8 As shown, near 1700Hz, the muffler 205' has a weakened muffler capability, and is prone to produce loud noise. The noise is emitted through exhaust pulses and pump body (cylinder) vibration, causing the compressor to have loud, discontinuous, and unacceptable operating noise. The vibration that generates the noise is transmitted to the outdoor or indoor unit of the air conditioner through the external pipeline of the compressor, thereby affecting the noise level of the air conditioning system.

[0133] In the present invention, the function of discharging the accumulated liquid in the muffler cavity is realized by arranging a liquid discharge channel on the upper flange, thereby eliminating the influence of the accumulated liquid on the muffler cavity mode and optimizing the noise reduction function of the muffler. At the same time, the removal of the accumulated liquid in the muffler cavity also reduces the movement resistance of the exhaust valve plate, so that the compression chamber of the compressor can be opened and closed more timely, thereby reducing the energy consumption of the compressor and improving its working efficiency.

[0134] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An upper flange, characterized in that: A drainage channel is provided thereon, and the drainage channel is used to discharge the accumulated liquid in the muffler cavity of the air-conditioning compressor, and the drainage channel includes: A liquid accumulation groove, which is arranged on the upper flange body of the air-conditioning compressor and extends along the circumference of the upper flange body, and the liquid accumulation groove is used to collect the accumulated liquid in the muffler cavity; A liquid drain groove, which is arranged on the upper flange body, and one end of the liquid drain groove is connected to the liquid accumulation groove; Wherein, a flow hole is provided on the upper flange body, the other end of the drainage groove is connected to the flow hole, and the accumulated liquid is discharged from the muffler cavity through the liquid accumulation groove, the drainage groove and the flow hole in sequence.

2. The upper flange according to claim 1, characterized in that: The upper flange body includes an upper flange plate and a shaft neck arranged on the upper flange plate. An exhaust port is arranged on the flange surface of the upper flange plate. The liquid accumulation groove is arranged on the flange surface around the central axis of the shaft neck and is spaced apart from the exhaust port.

3. The upper flange according to claim 2, characterized in that: The silencer chamber is a multi-petal silencer chamber, the liquid accumulation groove is arranged as a petal-shaped structure, the liquid accumulation groove comprises a first petal groove, the first petal groove is connected with the liquid drainage groove, the accumulated liquid is discharged from the silencer chamber through the first petal groove, the liquid drainage groove and the flow hole in sequence, and the first petal groove is arranged corresponding to any petal-shaped cavity of the silencer chamber.

4. The upper flange according to claim 3, characterized in that: The liquid accumulation groove also includes a second petal groove, which is arranged on at least one side of the first petal groove and is connected to the first petal groove. A part of the accumulated liquid is discharged from the silencer cavity through the second petal groove, the first petal groove, the drainage groove and the flow hole in sequence, and another part of the accumulated liquid is discharged from the silencer cavity through the first petal groove, the drainage groove and the flow hole in sequence. The second petal groove is arranged corresponding to another petal-shaped cavity of the silencer cavity, and the other petal-shaped cavity is adjacent to any one of the petal-shaped cavities.

5. The upper flange according to claim 4, characterized in that: When the second petal grooves are respectively arranged on both sides of the first petal groove, the second petal grooves and the first petal grooves form a three-petal structure.

6. The upper flange according to claim 4, characterized in that: When the second petal groove is arranged on one side of the first petal groove, the second petal groove and the first petal groove are configured into a double-petal structure.

7. The upper flange according to claim 2, characterized in that: The liquid accumulation groove is an arc-shaped groove, and the arc-shaped groove is connected with the liquid discharge groove. The accumulated liquid is discharged from the muffler cavity through the arc-shaped groove, the liquid discharge groove and the flow hole in sequence.

8. The upper flange according to any one of claims 1 to 7, characterized in that: The drain tank comprises: a first groove surface; and a second groove surface, which is arranged opposite to the first groove surface; and a third groove surface, which is vertically connected to the first groove surface and the second groove surface; Wherein, one end of the first groove surface and the second groove surface is connected to the liquid accumulation groove, and the other end of the first groove surface and the second groove surface is connected to the flow hole.

9. The upper flange according to claim 8, characterized in that: The horizontal distance between the first groove surface and the second groove surface gradually increases along the flow direction of the effluent, or the horizontal distance between the first groove surface and the second groove surface remains unchanged along the flow direction of the effluent.

10. The upper flange according to claim 8, characterized in that: The cross section of the liquid accumulation groove on the first plane is "U"-shaped, and / or the cross section of the liquid drainage groove on the first plane is "U"-shaped.

11. An air-conditioning compressor, characterized in that: It includes: Lower flange; a crankshaft rotatably disposed on the lower flange; A cylinder, which is sleeved on the outer circumference of the crankshaft and arranged on the lower flange; The upper flange according to any one of claims 1 to 10, which is sleeved on the outer circumference of the crankshaft and arranged on the cylinder; and The muffler is sleeved on the journal of the upper flange, and the muffler cavity is formed between the muffler and the upper flange.

12. An air conditioner, characterized in that: It comprises a refrigeration system, which comprises the air-conditioning compressor as claimed in claim 11.

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