Compressor drainage cover and rotary compressor

Abstract

The present application provides a compressor drainage cover and a rotary compressor. The compressor drainage cover is disposed between the rotor and the upper flange, and includes a mounting portion, a rotating assembly, and a baffle portion; wherein, the mounting portion is used to connect the rotating assembly and the rotor; the rotating assembly is coaxially disposed within the baffle portion and fixedly connected to the baffle portion; the baffle portion has a cylindrical structure, and its bottom is in clearance fit with the groove formed on the upper flange. Through the application of the compressor drainage cover, a smooth exhaust passage is provided for the exhaust gas, reducing the exhaust resistance and backflow, which is beneficial to avoiding the accumulation of high-pressure gas at the exhaust port, facilitating the exhaust of the rotary compressor, and thus beneficial to improving the working efficiency of the rotary compressor. The rotary compressor includes the above compressor drainage cover.

Description

Technical Field

[0001] The invention relates to the field of compressors, and in particular to a compressor drainage cover and a rotor compressor. Background Art

[0002] Rotary compressors are widely used in refrigerators, air conditioners and other refrigeration equipment due to their small number of parts, small size, simple structure, light weight and reliable operation. Rotary compressors include an eccentric cylindrical rotor and a cylinder. The rotation of the rotor causes the working volume in the cylinder to change periodically to achieve a cycle of suction, compression and exhaust.

[0003] In the prior art, when the rotary compressor is working, the rotor structure only provides conventional air flow agitation for the exhaust, so that the high-pressure gas discharged from the cylinder exhaust port is mainly exhausted by free diffusion.

[0004] Since the existing rotary compressor cannot provide a smooth exhaust channel for exhaust, the exhaust resistance is large and the backflow phenomenon is obvious, so that the high-pressure gas accumulates at the exhaust port, which is not conducive to exhaust and has an adverse effect on the working efficiency of the rotary compressor. Summary of the invention

[0005] In view of the above problems in the prior art, the present application proposes a compressor hood and a rotary compressor. Through the application of the compressor hood, a smooth exhaust passage is provided for exhaust, the resistance and backflow of exhaust are reduced, which is conducive to avoiding the accumulation of high-pressure gas at the exhaust port, which is conducive to the exhaust of the rotary compressor, and then it is conducive to improving the working efficiency of the rotary compressor.

[0006] In the first aspect, the present invention provides a compressor hood, which is arranged between the rotor and the upper flange, and includes a mounting portion, a rotating assembly and a baffle portion; wherein the mounting portion is used to connect the rotating assembly and the rotor; the rotating assembly is coaxially arranged in the baffle portion and fixedly connected to the baffle portion; the baffle portion is a cylindrical structure, and its bottom and the groove gap opened on the upper flange are matched. By using the compressor hood, it is possible to avoid the accumulation of high-pressure gas at the exhaust port and in the exhaust channel, reduce the exhaust resistance of the rotary compressor, and facilitate efficient exhaust, thereby facilitating the improvement of the working efficiency of the rotary compressor.

[0007] In one embodiment of the first aspect, the rotating assembly includes a rotating cylinder and a rotating fin; the rotating cylinder is coaxially arranged with the baffle portion, the rotating fin is located between the rotating cylinder and the baffle portion, and the first end of the rotating fin is fixed to the outer wall of the rotating cylinder; a plurality of the rotating fins are evenly distributed along the circumference of the rotating cylinder. Through this embodiment, a negative pressure area can be formed on the side of the fin close to the upper flange, so that the exhaust channel remains unobstructed, which is conducive to the continuous discharge of gas from the exhaust channel to the external environment.

[0008] In an embodiment of the first aspect, the second end of the rotating fin is fixed to the inner wall of the baffle portion. By this embodiment, only the rotating fins are provided in the exhaust passage, which is beneficial to avoid other structures blocking the gas discharge, thereby further improving the exhaust efficiency.

[0009] In an embodiment of the first aspect, the compressor diversion cover further includes a connecting portion for connecting the baffle portion and the rotating cylinder, and a plurality of first through holes for exhausting gas are formed in the connecting portion. By this embodiment, the baffle portion can be fixed to the rotating cylinder through the connecting portion, so that the baffle portion and the rotating assembly of the compressor diversion cover become an integral body and can rotate together under the drive of the rotor.

[0010] In an embodiment of the first aspect, the plurality of first through holes are uniformly distributed along the circumferential direction of the connecting portion.

[0011] In an embodiment of the first aspect, the rotating fin is in a straight sheet shape or an arc sheet shape.

[0012] In the second aspect, the present invention further provides a rotary compressor, including the above-mentioned compressor diversion cover, and the compressor diversion cover is disposed between the rotor and the upper flange. By this embodiment, the compressor diversion cover of the rotary compressor enables the gas to be continuously discharged to the outside of the rotary compressor through the exhaust passage, avoiding the accumulation of high-pressure gas at the exhaust port and in the exhaust passage, reducing the exhaust resistance of the rotary compressor, and being beneficial to improving the working efficiency of the rotary compressor.

[0013] In an embodiment of the second aspect, the mounting portion includes a mounting surface, the mounting surface is sleeved outside the rotating cylinder and fixedly connected to the rotating cylinder, and the mounting surface is fixedly connected to the rotor. By this embodiment, the rotor drives the compressor diversion cover to work, which can effectively utilize the kinetic energy of the rotor to drive the compressor diversion cover to work, and there is no need to provide an independent power source for the compressor diversion cover, which is beneficial to saving electric energy and installation space.

[0014] In an embodiment of the second aspect, a second through hole is formed in the middle of the mounting surface, the neck of the upper flange sequentially passes through the rotating cylinder and the second through hole, and the crankshaft of the rotary compressor passes through the neck and is in interference fit with the rotor. By this embodiment, the rotor can drive the crankshaft to do work, reducing the influence of the compressor diversion cover on the crankshaft, and being beneficial to the normal operation of the rotary compressor.

[0015] In an embodiment of the second aspect, the rotary compressor further includes a balance weight, and the balance weight is installed on a side of the mounting surface away from the rotor. Through this embodiment, the influence of the compressor drainage cover on the balance weight can be reduced, which is beneficial to the normal use of the balance weight, beneficial to the stable operation of the rotary compressor, and thus beneficial to improving the service life of the rotary compressor.

[0016] In an embodiment of the second aspect, an exhaust hole communicating with the cylinder of the rotary compressor is provided on the upper flange, and the exhaust hole is located within the groove. Through this embodiment, the exhaust hole located inside the groove can be directly communicated with the exhaust passage, and the exhaust passage can guide the gas discharged from the cylinder to smoothly enter the compressor drainage cover through the exhaust hole, which is beneficial to the gas discharged from the cylinder to leave the rotary compressor along the exhaust passage and enter the external environment.

[0017] The compressor drainage cover and the rotary compressor provided by the present application have the following beneficial effects compared with the prior art:

[0018] 1. Through the application of the compressor drainage cover, a smooth exhaust passage is provided for exhaust, reducing the exhaust resistance and backflow, which is beneficial to avoiding the accumulation of high-pressure gas at the exhaust port, beneficial to the exhaust of the rotary compressor, and thus beneficial to improving the working efficiency of the rotary compressor;

[0019] 2. Utilize the kinetic energy of the rotor to drive the compressor drainage cover to work, without the need to set up an independent power source for the compressor drainage cover, which is beneficial to saving electric energy and installation space;

[0020] 3. The setting of the compressor drainage cover does not affect the normal use of the balance weight, which is beneficial to the stable operation of the rotary compressor, and thus beneficial to improving the service life of the rotary compressor;

[0021] 4. The setting of the compressor drainage cover does not affect the normal operation of the crankshaft, which is beneficial to the normal operation of the rotary compressor.

[0022] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the drawings. Among them:

[0024] Figure 1 shows a schematic structural diagram of a rotary compressor according to an embodiment of the present invention;

[0025] Figure 2 shows a schematic cross-sectional view of a rotary compressor according to an embodiment of the present invention;

[0026] Figure 3 showsFigure 2 Partial enlarged schematic view of area A;

[0027] Figure 4 Stereoscopic schematic view showing a compressor drainage cover according to an embodiment of the present invention;

[0028] Figure 5 Cross-sectional schematic view showing a compressor drainage cover according to an embodiment of the present invention;

[0029] Figure 6 Stereoscopic schematic view showing an upper flange according to an embodiment of the present invention;

[0030] Figure 7 Top view schematic view showing an upper flange according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] 1000 - Compressor drainage cover;

[0033] 1100 - Mounting part;

[0034] 1110 - Mounting surface;

[0035] 1111 - Second through-hole;

[0036] 1200 - Rotating assembly;

[0037] 1210 - Rotating cylinder;

[0038] 1220 - Rotating fin;

[0039] 1300 - Baffle part;

[0040] 2000 - Rotor;

[0041] 3000 - Upper flange;

[0042] 3100 - Groove;

[0043] 3200 - Exhaust hole;

[0044] 3300 - Neck;

[0045] 4000 - Balance weight;

[0046] 5000 - Crankshaft.

[0047] In the drawings, like parts are denoted by like reference numerals. The drawings are not drawn to actual scale. Detailed embodiments

[0048] The present invention will be further described below in conjunction with the drawings.

[0049] As Figures 1 to 7As shown in the figure, this embodiment provides a compressor drainage cover 1000, which is arranged between the rotor 2000 and the upper flange 3000, and includes a mounting part 1100, a rotating component 1200, and a baffle part 1300. Among them, the mounting part 1100 is used to connect the rotating component 1200 and the rotor 2000; the rotating component 1200 is coaxially arranged inside the baffle part 1300 and fixedly connected to the baffle part 1300; the baffle part 1300 has a cylindrical structure, and its bottom is in clearance fit with the groove 3100 opened on the upper flange 3000.

[0050] As Figure 1 and Figure 2 As shown in the figure, there is an accommodation space between the rotor 2000 and the upper flange 3000 of the rotor compressor in this embodiment, and the compressor drainage cover 1000 is arranged in the accommodation space between the rotor 2000 and the upper flange 3000.

[0051] The mounting part 1100 is used to connect the rotating component 1200 and the rotor 2000, so that the rotating component 1200 is fixed on the rotor 2000. When the rotor 2000 of the rotor compressor rotates, the rotating component 1200 fixed on the rotor 2000 by the mounting part 1100 will rotate together with the rotor 2000. The baffle part 1300 is fixedly connected to the rotating component 1200. Therefore, when the rotating component 1200 rotates, the baffle part 1300 will also rotate together with the rotating component 1200, that is, when the rotor 2000 rotates, it will drive the entire compressor drainage cover 1000 to rotate.

[0052] As Figure 4 and Figure 5 As shown in the figure, the baffle part 1300 has a cylindrical structure. As Figure 3 As shown in the figure, the bottom of the baffle part 1300 is in clearance fit with the groove 3100 opened on the upper flange 3000. When the compressor drainage cover 1000 rotates, the upper flange 3000 remains stationary, and the clearance fit between the baffle part 1300 and the groove 3100 can prevent the baffle part 1300 from rubbing against the upper flange 3000, which is beneficial to reducing noise and improving the comfort of the working environment where the rotor compressor is located.

[0053] The bottom of the baffle part is in clearance fit with the groove 3100 on the upper flange 3000, that is, the bottom of the baffle part is inserted into the groove 3100. The channel formed by the upper flange 3000 and the compressor drainage cover 1000 constitutes an exhaust channel. The exhaust channel has two ends, one end is the upper flange 3000 end, and the other end is the rotor 2000 end. The exhaust channel can guide the gas discharged from the cylinder to smoothly enter the compressor drainage cover 1000.

[0054] When the rotor compressor operates, the rotor 2000 rotates and the cylinder discharges gas. Figure 2 and Figure 5The arrow direction in [it] is the gas flow direction. The rotating assembly 1200 fixed to the rotor 2000 through the mounting part 1100 will rotate together with the rotor 2000. The rotating rotating assembly 1200 continuously pushes the gas out of the exhaust passage, forming a negative pressure area at the upper flange 3000 end of the exhaust passage, as Figure 2 and Figure 5 shown, the gas continuously floods into the rotating assembly 1200 through the exhaust passage. The gas flooding into the rotating assembly 1200 is pushed out of the exhaust passage by the rotating rotating assembly 1200, keeping the exhaust passage unobstructed. The baffle part 1300 plays a role in guiding the flow. The gas can enter the rotating assembly 1200 along the inner wall of the baffle part 1300 and be discharged, instead of freely diffusing outside the exhaust passage. At the same time, the exhaust passage with negative pressure at the upper flange 3000 end can effectively reduce the gas from flowing back along the exhaust passage to the upper flange 3000.

[0055] The compressor drainage cover 1000 enables the gas to be continuously discharged from the exhaust passage to the outside of the rotary compressor, avoiding the accumulation of high-pressure gas at the exhaust port and in the exhaust passage, and reducing the exhaust resistance of the rotary compressor. The exhaust passage with negative pressure at the upper flange 3000 end can reduce the gas backflow, which is beneficial to efficient exhaust. The efficient discharge of the gas is beneficial to improving the working efficiency of the rotary compressor.

[0056] In this embodiment, by installing the compressor drainage cover 1000 in the rotary compressor, a smooth exhaust passage is provided for the gas discharged from the cylinder of the rotary compressor, reducing the exhaust resistance and backflow, which is beneficial to avoiding the accumulation of high-pressure gas at the exhaust port, beneficial to exhaust, and then beneficial to improving the working efficiency of the rotary compressor.

[0057] As Figure 4 and Figure 5 shown, optionally, the rotating assembly 1200 of this embodiment includes a rotating cylinder 1210 and rotating fins 1220; the rotating cylinder 1210 is coaxially arranged with the baffle part 1300, the rotating fins 1220 are located between the rotating cylinder 1210 and the baffle part 1300, and the first end of the rotating fins 1220 is fixed to the outer wall of the rotating cylinder 1210; a plurality of rotating fins 1220 are evenly distributed along the circumferential direction of the rotating cylinder 1210.

[0058] The rotating cylinder 1210 is fixed to the rotor 2000 of the rotary compressor through the mounting part 1100. When the rotor 2000 rotates, the rotating cylinder 1210 rotates together with the rotor 2000. The first end of the rotating fins 1220 is fixed to the outer wall of the rotating cylinder 1210. Therefore, when the rotor 2000 rotates, the rotating fins 1220 fixed to the outer wall of the rotating cylinder 1210 will rotate together with the rotating cylinder 1210.

[0059] The rotating fin 1220 rotates. Due to the Bernoulli phenomenon, a negative pressure region is formed on the flange 3000 side of the rotating fin 1220, and a positive pressure region is formed on the rotor 2000 side of the rotating fin 1220. The gas on the flange 3000 side of the rotating fin 1220 continuously flows through the rotating fin 1220 to the rotor 2000 side of the rotating fin 1220, keeping the exhaust passage unobstructed, so that the gas is continuously discharged from the exhaust passage to the external environment.

[0060] The rotating fin 1220 is located between the rotating cylinder 1210 and the baffle part 1300, and the rotating cylinder 1210 is located inside the baffle part 1300, which is beneficial for the baffle part 1300 to introduce gas into the rotating fin 1220. If the rotating fin 1220 is too long, that is, the rotating fin 1220 extends outside the baffle part 1300, a larger power is required to drive the rotation of the rotating fin 1220, which is not conducive to saving electric energy.

[0061] The rotating cylinder 1210 and the baffle part 1300 are coaxially arranged, and a plurality of rotating fins 1220 are evenly distributed along the circumferential direction of the rotating cylinder 1210, which is beneficial for the compressor drainage cover 1000 to maintain balance during rotation, making the forces on each rotating fin 1220 balanced, which is beneficial for the smooth operation of the compressor drainage cover 1000 and also beneficial for improving the service life of the compressor drainage cover 1000.

[0062] Optionally, the second end of the rotating fin 1220 of this embodiment is fixed to the inner wall of the baffle part 1300.

[0063] The first end of the rotating fin 1220 is fixed to the outer wall of the rotating cylinder 1210, and the second end of the rotating fin 1220 is fixed to the inner wall of the baffle part 1300. Thus, the baffle part 1300 is fixed outside the rotating cylinder 1210 through the rotating fin 1220, making the baffle part 1300 and the rotating component 1200 of the compressor drainage cover 1000 integrated and able to rotate together under the drive of the rotor 2000.

[0064] In this embodiment, only the rotating fin 1220 is arranged in the exhaust passage, which is beneficial for avoiding other structures from blocking the discharge of gas, and thus is beneficial for further improving the exhaust efficiency.

[0065] Optionally, the first end of the rotating fin 1220 can be fixed to the outer wall of the rotating cylinder 1210 by welding, and the second end of the rotating fin 1220 can also be fixed to the inner wall of the baffle part 1300 by welding.

[0066] Optionally, the compressor drainage cover 1000 of this embodiment further includes a connecting part for connecting the baffle part 1300 and the rotating cylinder 1210, and the connecting part is provided with a plurality of first through holes for exhausting gas.

[0067] In this embodiment, the baffle portion 1300 is fixed to the rotating cylinder 1210 through the connecting portion, so that the baffle portion 1300 and the rotating assembly 1200 of the compressor hood 1000 are integrated and can rotate together under the drive of the rotor 2000. In order to reduce the obstruction of the connecting portion to the exhaust, the connecting portion is provided with a plurality of first through holes for exhaust.

[0068] Optionally, the plurality of first through holes of this embodiment are evenly distributed along the circumference of the connecting portion, which is beneficial for the compressor hood 1000 to maintain balance during rotation and for improving the service life of the compressor hood 1000.

[0069] Optionally, the rotating fins 1220 of this embodiment are in the shape of straight sheets or arc-shaped sheets.

[0070] The straight rotating fin 1220 has a simple structure, low production cost and is not easy to scale, which is beneficial to reducing the production cost and cleaning and maintenance cost of the compressor hood 1000. The arc-shaped rotating fin 1220 has a high kinetic energy utilization rate and is beneficial to saving electricity, but the manufacturing process is relatively complex and the production cost is high.

[0071] The structure of the rotating fin 1220 is sufficient as long as it ensures that a negative pressure area is formed on the flange 3000 side thereof when the rotating fin 1220 rotates. Therefore, the structure of the rotating fin 1220 includes but is not limited to a straight sheet shape and an arc-shaped sheet shape.

[0072] like Figures 1 to 3 As shown, this embodiment further provides a rotor compressor, including the above-mentioned compressor air intake cover 1000 , and the compressor air intake cover 1000 is arranged between the rotor 2000 and the upper flange 3000 .

[0073] The compressor guide cover 1000 is disposed between the rotor 2000 and the upper flange 3000 , so that an exhaust passage is formed between the rotor 2000 and the upper flange 3000 .

[0074] The rotary compressor of this embodiment includes a compressor hood 1000 disposed between a rotor 2000 and an upper flange 3000. When the rotary compressor is running, the rotor 2000 rotates and the cylinder exhausts gas. The rotating assembly 1200 fixed to the rotor 2000 by the mounting portion 1100 rotates together with the rotor 2000. The rotating rotating assembly 1200 continuously pushes gas out of the exhaust passage, forming a negative pressure area at the upper flange 3000 end of the exhaust passage, and under the action of the pressure difference, gas continuously flows into the rotating assembly 1200 through the exhaust passage. The gas flowing into the rotating assembly 1200 is pushed out of the exhaust passage by the rotating rotating assembly 1200, so that the exhaust passage remains unobstructed.

[0075] The baffle part 1300 plays a role in guiding the flow. The gas can enter the rotating assembly 1200 along the inner wall of the baffle part 1300 and be discharged, without freely diffusing outside the exhaust passage. At the same time, the exhaust passage with negative pressure at the upper flange 3000 end can effectively reduce the backflow of the gas along the exhaust passage to the upper flange 3000.

[0076] The compressor flow guide cover 1000 of the rotary compressor enables the gas to be continuously discharged to the outside of the rotary compressor through the exhaust passage, avoiding the accumulation of high-pressure gas at the exhaust port and in the exhaust passage, and reducing the exhaust resistance of the rotary compressor. The exhaust passage with negative pressure at the upper flange 3000 end can reduce the gas backflow, which is beneficial to the efficient exhaust of the rotary compressor. The efficient discharge of the gas is beneficial to improving the working efficiency of the rotary compressor.

[0077] As Figure 4 and Figure 5 shown, optionally, the installation part 1100 of the present embodiment includes an installation surface 1110. The installation surface 1110 is sleeved outside the rotating cylinder 1210 and fixedly connected to the rotating cylinder 1210, and the installation surface 1110 is fixedly connected to the rotor 2000.

[0078] The installation surface 1110 and the rotating cylinder 1210 can be connected by welding or integrally formed. The cylinder wall of the rotating cylinder 1210 is perpendicular to the installation surface 1110. Optionally, the installation surface 1110 can be detachably connected to the rotor 2000 through a fixing member. The detachable connection is beneficial to the daily maintenance, disassembly, washing and replacement of the compressor flow guide cover 1000. The fixing member can be a bolt.

[0079] By fixedly connecting the compressor flow guide cover 1000 to the rotor 2000 through the installation surface 1110, the compressor flow guide cover 1000 is fixed on the rotor 2000. When the rotor 2000 of the rotary compressor rotates, the compressor flow guide cover 1000 fixed on the rotor 2000 through the installation surface 1110 will rotate together with the rotor 2000, which is beneficial to ensuring the normal operation of the compressor flow guide cover 1000.

[0080] By driving the compressor flow guide cover 1000 to work through the rotor 2000, the kinetic energy of the rotor 2000 can be effectively utilized, and there is no need to set up an independent power supply for the compressor flow guide cover 1000, which is beneficial to saving electric energy and installation space.

[0081] As Figure 4 and Figure 5 shown, optionally, a second through hole 1111 is formed in the middle of the installation surface 1110 of the present embodiment. As Figure 2 shown, the neck 3300 of the upper flange 3000 sequentially passes through the rotating cylinder 1210 and the second through hole 1111, and the crankshaft 5000 of the rotary compressor passes through the neck 3300 and has an interference fit with the rotor 2000. Figure 6 and Figure 7Shows the specific structure of the upper flange 3000.

[0082] The hollow designs of the second through-hole 1111 and the rotating cylinder 1210 both provide an installation space for the crankshaft 5000, making the structure of the rotary compressor more compact. To protect the crankshaft 5000, as Figure 6 shown, a neck 3300 of the upper flange 3000 is formed by a convexity in the middle of the upper flange 3000. As Figure 2 shown, the neck 3300 of the upper flange 3000 is sleeved outside the crankshaft 5000. The crankshaft 5000 of the rotary compressor passes through the neck 3300 and has an interference fit with the rotor 2000. The rotor 2000 can drive the crankshaft 5000 to do work, reducing the influence of the compressor flow guide cover 1000 on the crankshaft 5000, which is beneficial to the normal operation of the rotary compressor.

[0083] As Figure 1 and Figure 2 shown, optionally, the rotary compressor of the present embodiment further includes a balance weight 4000, and the balance weight 4000 is installed on the side of the mounting surface 1110 away from the rotor 2000.

[0084] The setting of the balance weight 4000 is beneficial to keeping the balance of the rotary compressor during operation, thus being beneficial to the stable operation of the rotary compressor, and then being beneficial to improving the service life of the rotary compressor.

[0085] Normally, the balance weight 4000 of the rotary compressor is fixedly connected to the rotor 2000. When using the compressor flow guide cover 1000, the compressor flow guide cover 1000 occupies the original installation position of the balance weight 4000. For the normal use of the balance weight 4000 and for the normal operation of the compressor flow guide cover 1000, the balance weight 4000 is arranged on the mounting surface 1110 of the compressor flow guide cover 1000 in the present embodiment.

[0086] The balance weight 4000 is installed on the side of the mounting surface 1110 away from the rotor 2000. Bolts can sequentially pass through the balance weight 4000 and the mounting surface 1110 of the compressor flow guide cover 1000, thereby detachably fixing the balance weight 4000 and the compressor flow guide cover 1000 to the rotor 2000. The detachable connection between the compressor flow guide cover 1000 and the rotor 2000 is beneficial to the daily maintenance such as disassembly, replacement, and cleaning of the compressor flow guide cover 1000, thus being beneficial to improving the service life of the rotary compressor.

[0087] As Figure 6 and Figure 7 shown, optionally, an exhaust hole 3200 communicating with the cylinder of the rotary compressor is provided on the upper flange 3000 of the present embodiment, and the exhaust hole 3200 is located within the groove 3100.

[0088] The exhaust hole 3200 is located within the groove 3100. The baffle portion 1300 has a cylindrical structure, and there is a clearance fit between its bottom and the groove 3100 formed on the upper flange 3000. Therefore, the exhaust hole 3200 is located within the space enclosed by the baffle portion 1300. The channel formed by the upper flange 3000 and the compressor diversion cover 1000 constitutes the exhaust passage. The exhaust hole 3200 located inside the groove 3100 can be directly connected to the exhaust passage, and the exhaust passage can guide the gas discharged from the cylinder into the compressor diversion cover 1000 smoothly, which is beneficial for the gas discharged from the cylinder to leave the rotary compressor through the exhaust hole 3200 along the exhaust passage and enter the external environment.

[0089] In addition, the main idea of the present invention is to provide a smooth exhaust passage for exhaust through the application of the compressor diversion cover 1000, reduce the resistance and backflow of exhaust, which is beneficial to avoid the accumulation of high-pressure gas at the exhaust port 3200, beneficial for the exhaust of the rotary compressor, and then beneficial to improve the working efficiency of the rotary compressor. Therefore, the baffle portion 1300 can also be fixed to the upper flange. At this time, the rotating fin 1220 is separated from the baffle, and the rotating fin 1220 rotates for exhaust.

[0090] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation of the present invention.

[0091] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not depart from the spirit and scope of the present invention defined by the appended claims. It should be understood that different dependent claims and the features described herein can be combined in a different manner than described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A compressor drainage cover is arranged between a rotor and an upper flange, and is characterized in that It includes an installation part, a rotating component, and a baffle part; wherein, The installation part is used to connect the rotating component and the rotor; The rotating component is coaxially arranged inside the baffle part and fixedly connected to the baffle part; The baffle part is in a cylindrical structure, and its bottom is in clearance fit with the groove formed on the upper flange; Wherein, the rotating component includes a rotating cylinder and rotating fins; the rotating cylinder is coaxially arranged with the baffle part, the rotating fins are located between the rotating cylinder and the baffle part, and the first end of the rotating fins is fixed to the outer wall of the rotating cylinder; a plurality of the rotating fins are evenly distributed along the circumferential direction of the rotating cylinder.

2. The compressor drainage cover according to claim 1, wherein The second end of the rotating fins is fixed to the inner wall of the baffle part.

3. The compressor drainage cover according to claim 1, characterized in that, It further includes a connecting part for connecting the baffle part and the rotating cylinder, and the connecting part is provided with a plurality of first through holes for exhausting gas.

4. The compressor drainage cover according to claim 3, characterized in that, A plurality of the first through holes are evenly distributed along the circumferential direction of the connecting part.

5. The compressor drainage cover according to claim 1, wherein, The rotating fins are in a straight sheet shape or an arc sheet shape.

6. A rotary compressor, characterized in that, It includes the compressor flow guiding cover according to any one of claims 1 to 5, and the compressor flow guiding cover is arranged between the rotor and the upper flange.

7. The rotary compressor according to claim 6, characterized in that, The installation part includes an installation surface, the installation surface is sleeved outside the rotating cylinder and fixedly connected to the rotating cylinder, and the installation surface is fixedly connected to the rotor.

8. The rotary compressor according to claim 7, characterized in that, A second through hole is formed in the middle of the installation surface, the neck of the upper flange sequentially passes through the rotating cylinder and the second through hole, and the crankshaft of the rotor compressor passes through the neck and is in interference fit with the rotor.

9. The rotary compressor according to claim 7, wherein, It further includes a balance weight, and the balance weight is installed on the side of the installation surface away from the rotor.

10. The rotary compressor according to claim 6, characterized in that, An exhaust hole communicating with the cylinder of the rotor compressor is provided on the upper flange, and the exhaust hole is located within the groove.

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