Compressors and air handling equipment

Abstract

The present invention provides a compressor and an air treatment device, wherein the compressor comprises: a shell, provided with an exhaust port; a frame, arranged in the shell, a mounting area is arranged in the frame, an exhaust cavity is formed between the frame and the shell, and the exhaust cavity is connected with the exhaust port; a movable scroll, arranged in the mounting area, the movable scroll is in contact with the frame; a fixed scroll, arranged in the mounting area, a compression cavity is arranged between the movable scroll and the fixed scroll, and the compression cavity is connected with the exhaust cavity; a driving member, assembled with the movable scroll, used to drive the movable scroll to rotate; a drainage channel, arranged in the frame, a first end of the drainage channel is connected with the exhaust cavity, and a second end of the drainage channel faces the movable scroll. The oil deposited in the exhaust cavity can flow into the drainage channel under pressure, and the oil is pushed to the movable scroll under the gas pressure in the exhaust cavity, so as to realize the lubrication function between the movable scroll and the frame.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and in particular, relates to a compressor and an air treatment device. Background Art

[0002] At present, during the operation of the scroll compressor, one side of the movable scroll plate often wears against the thrust surface of the main frame, resulting in a high failure rate of the scroll compressor. Summary of the invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0004] In view of this, in a first aspect, the present invention proposes a compressor, comprising: a shell, provided with an exhaust port; a frame, arranged in the shell, a mounting area is arranged in the frame, an exhaust chamber is formed between the frame and the shell, and the exhaust chamber is connected with the exhaust port; a movable scroll plate, arranged in the mounting area, the movable scroll plate is in contact with the frame; a fixed scroll plate, arranged in the mounting area, a compression chamber is arranged between the movable scroll plate and the fixed scroll plate, and the compression chamber is connected with the exhaust chamber; a driving member, assembled with the movable scroll plate, and used for driving the movable scroll plate to rotate; a drainage channel, arranged in the frame, a first end of the drainage channel is connected with the exhaust chamber, and a second end of the drainage channel faces the movable scroll plate.

[0005] The compressor provided by the present invention is provided with a drainage channel on the frame, and the first end of the drainage channel is connected to the exhaust chamber, and the oil in the exhaust chamber can enter the drainage channel through the first end of the drainage channel, and the second end of the guide channel is directed to the movable scroll plate. The oil flowing into the drainage channel flows to the movable scroll plate through the second end of the drainage channel, specifically flows to the matching surface of the movable scroll plate facing the frame. Since the oil contacts the movable scroll plate, as the movable scroll plate rotates, the matching surface of the movable scroll plate is basically covered with oil, and the end surface of the frame plate facing the movable scroll plate is the thrust surface. Since the space between the movable scroll plate and the thrust surface is covered with oil, the movable scroll plate is not prone to wear, thereby reducing the failure rate of the compressor.

[0006] An installation area is provided in the frame, and the compressor also includes a fixed scroll and a driving member. When the driving member can drive the movable scroll to rotate relative to the fixed scroll, the movable scroll and the fixed scroll can compress the refrigerant entering therebetween, so that the refrigerant is compressed into a high temperature and high pressure state.

[0007] The compressor also includes a shell, an exhaust cavity is formed between the shell and the frame, the exhaust cavity is connected to the compression cavity, and the refrigerant compressed to a high temperature and high pressure state can flow into the exhaust cavity. The shell is also provided with an exhaust port, which is connected to the exhaust cavity, and the refrigerant flowing into the exhaust cavity can be discharged from the shell through the exhaust port, so that other components in the air conditioner can use the refrigerant. By providing the exhaust cavity between the shell and the frame, the refrigerant compressed to a high temperature and high pressure state is buffered in the exhaust cavity, preventing the refrigerant from rushing out of the shell quickly under high pressure, thereby preventing the impact force of the refrigerant from damaging the components in the air conditioner, and ensuring the operating stability of the air conditioner.

[0008] The refrigerant contains oil. When the compressed refrigerant flows into the exhaust chamber, part of the oil will be deposited in the exhaust chamber. Moreover, since the refrigerant entering the exhaust chamber is in a high-pressure state, the pressure in the exhaust chamber is relatively high. The oil deposited in the exhaust chamber can flow into the drainage channel under the action of pressure. The oil is pushed to the movable scroll under the action of the gas pressure in the exhaust chamber, thereby realizing the lubrication function between the movable scroll and the frame. When the movable scroll rotates, the wear between the movable scroll and the frame can be effectively reduced to avoid the problems of jamming and blocking caused by wear, which is beneficial to improving the operating stability of the compressor.

[0009] In addition, the compressor in the above technical solution provided by the present invention may also have the following additional technical features:

[0010] In one possible design, the drainage channel includes: a flow channel, a first end of the flow channel is connected to the exhaust chamber; an annular groove, provided on the frame, a second end of the flow channel is connected to the annular groove; at least two drainage parts, provided on the frame, at least two drainage parts are connected to the annular groove, and the drainage parts face the movable scroll.

[0011] In this design, the first end of the flow channel is connected to the exhaust chamber, and the oil is pushed into the flow channel under the action of the gas pressure in the exhaust chamber. An annular groove is provided on the frame, and the annular groove is connected to the second end of the flow channel. The oil in the flow channel can flow into the annular groove, so that the oil can not fill the entire annular groove. A drainage portion is also provided on the frame, and the number of the drainage portions is at least two, and any of the at least two drainage portions is connected to the annular groove. The oil in the annular groove can flow into at least two drainage portions, and at least two drainage portions face the movable scroll. The oil flowing out of the oil drainage portion contacts the movable scroll, realizing the lubrication function between the movable scroll and the frame. When the movable scroll rotates, it can effectively reduce the wear between the movable scroll and the frame, avoiding the problems of jamming and blocking caused by wear, which is beneficial to improving the operating stability of the compressor.

[0012] The annular groove is annular, and at least two drainage parts are distributed along the circumference of the annular groove. By setting the two drainage parts, at least two oil drainage points are provided on the frame. By increasing the number of oil drainage points, the speed at which the mating surface in the movable scroll is filled with oil can be increased, thereby facilitating the improvement of the lubrication efficiency between the movable scroll and the frame. Moreover, by setting at least two oil drainage parts, the problem of partial structure of the mating surface in the movable scroll not being contacted by oil can be avoided, which is conducive to improving the lubrication effect between the movable scroll and the frame.

[0013] The extension line of the rotation center of the orbiting scroll passes through the annular area of ​​the annular groove, and the lubrication effect on the orbiting scroll is further improved by limiting the opening position of the annular groove relative to the orbiting scroll.

[0014] In one possible design, the orbiting scroll includes at least one oil return port, which is connected to the compression chamber. When the orbiting scroll rotates to a first position, the oil return port is connected to the discharge portion. When the orbiting scroll rotates to a second position, the oil return port and the discharge portion are staggered.

[0015] In this design, at least one oil return port is provided on the movable scroll, wherein the oil return port is provided on the end surface of the movable scroll facing the thrust surface, that is, provided on the mating surface of the movable scroll. During the rotation of the movable scroll, the oil return port can be opposite to or staggered from the discharge portion. Specifically, when the movable scroll rotates to the first position, the oil return port is connected to the discharge portion, so the first position is the position where the oil return port is opposite to the discharge portion. When the movable scroll rotates to the second position, the oil return port is staggered from the discharge portion, so the second position is the position where the oil return port is staggered from the discharge portion. That is to say, during the cyclic rotation of the movable scroll, the oil return port can be opposite to or staggered from the discharge portion as the movable scroll rotates.

[0016] The oil can be discharged through the discharge part. When the discharge part and the oil return port are opposite to each other, the oil discharged from the discharge part can flow into the oil return port. The oil can flow back to the compression chamber through the oil return port. The oil flowing into the compression chamber can flow into the exhaust chamber again driven by the refrigerant, thereby realizing the circulation of the oil, which is beneficial to achieve sufficient lubrication of the movable scroll.

[0017] The number of the oil return ports may be one or more. By increasing the number of the oil return ports, the circulation speed of the oil can be increased.

[0018] When there are multiple oil return ports, the multiple oil return ports are arranged at intervals, so that a part of the oil can be used to lubricate the movable scroll plate, and another part of the oil can flow back to the compression chamber.

[0019] The oil return port can pass through different drainage parts on the frame in sequence, so that the oil return port can be filled with oil multiple times, and then the oil return port can carry oil to various positions on the movable scroll and the frame.

[0020] In a possible design, the frame and the orbiting scroll are cut along a first direction, the cross-sectional area of ​​the discharge portion is greater than the cross-sectional area of ​​the oil return port, and the first direction is perpendicular to the axial direction of the orbiting scroll.

[0021] In this design, since the cross-sectional area of ​​the discharge portion is larger than the cross-sectional area of ​​the oil return port, the opening of the discharge portion is larger, while the opening of the oil return port is smaller. When the oil return port and the discharge portion are opposite to each other, the oil discharged from the discharge portion can quickly flow into the oil return port, so that the oil can flow back into the compression chamber through the oil return port, avoiding the oil entering the oil return port from falling quickly under the action of gravity due to the excessive radial size of the oil return port, making it difficult to circulate the oil into the compression chamber. Therefore, by limiting the relative size relationship between the cross-sectional area of ​​the discharge portion and the cross-sectional area of ​​the oil return port, the oil return effect can be improved.

[0022] When the frame is cut along the first aspect, the cross-section of the oil return port may be in a rhombus, circular, polygonal or elliptical shape, etc. When there are multiple oil return ports, the cross-sections of different oil return ports may be the same or different in shape.

[0023] In a possible design, the depth H of the oil return port satisfies 0.1 mm ≤ H ≤ 1 mm.

[0024] In this design, the range of the depth H of the oil return port is limited. When the depth H of the oil return port is less than 0.1 mm, the depth of the oil return port is small, and the structure of the movable scroll at the oil return port is thin, resulting in poor structural stability of the movable scroll, and the movable scroll is easily damaged during operation. When the depth H of the oil return port is greater than 1 mm, the depth of the oil return port is large, and affected by the pressure, some oil may be difficult to flow back into the compression chamber. Therefore, in the present invention, the depth of the oil return port is limited to between 0.1 mm and 1 mm, which can not only improve the oil return effect, but also ensure the structural stability of the movable scroll. The movable scroll located at the oil return port is not prone to damage or breakage, which reduces the damage rate of the movable scroll during operation, thereby improving the functional stability of the compressor.

[0025] In a possible design, the drainage portion includes: an oil collecting chamber; an oil collecting groove, the oil collecting groove is distributed along the circumference of the opening of the oil collecting chamber; and an oil discharge port, the oil discharge port connects the annular groove and the oil collecting groove.

[0026] In this design, an oil drain port is provided on the frame, a first end of the oil drain port is connected to the annular groove, and a second end of the oil drain port is connected to the oil collecting groove, and the oil in the annular groove flows into the oil collecting groove through the oil drain port.

[0027] An oil collecting chamber is also provided on the frame, and an oil collecting trough is provided at the opening of the oil collecting chamber, so that the oil collecting trough is connected to the oil collecting chamber, and the oil in the oil collecting trough can flow into the oil collecting chamber. The oil collecting chamber stores the oil, and when the oil return port is rotated to the opening of the oil collecting chamber, the oil in the oil collecting chamber flows into the oil return port, thereby realizing the circulation function of the oil.

[0028] Since the oil collecting groove is arranged at the opening of the oil collecting cavity, the bottom wall of the oil collecting groove is lower than the thrust surface of the frame body, and the oil return port can be arranged on the bottom wall of the oil collecting groove to ensure that the oil can stably flow into the oil collecting cavity.

[0029] The number of the oil drain holes located on one oil collecting groove may be at least two, and the at least two oil drain holes are arranged at intervals along the circumference of the oil collecting groove.

[0030] In a possible design, the compressor further includes: a first sealing member disposed in the oil collecting tank, the first sealing member shielding the oil drain port.

[0031] In this design, a first seal is installed in the oil collecting tank, and the first seal blocks the oil drain port. Specifically, when no oil flows into the oil drain port, the first seal closes the oil drain port.

[0032] When oil flows into the oil drain port, the oil can push the first seal, so that a gap appears between the first seal and the oil drain hole. At this time, the first seal opens the oil drain port, and the oil in the oil drain port can flow into the oil collecting chamber. By setting the first seal, the oil flowing out of the oil drain port can flow into the oil collecting chamber under the sealing effect of the first seal, and will not flow directly into the gap between the movable scroll and the frame, thereby avoiding the problem of oil leakage caused by excessive oil between the movable scroll and the frame. The sealing effect of the first seal can avoid oil waste and ensure that there is a small amount of oil between the movable scroll and the frame to play a lubricating role.

[0033] Since the movable scroll is located on one side of the thrust surface of the frame, the movable scroll can limit the first seal. Even if the oil pushes the first seal, it only pushes part of the structure on the first seal to deform, and will not push the first seal away from the oil collecting tank.

[0034] In addition, under the push of the oil, the first seal contacts the movable scroll, so that the first seal can also push the movable scroll, so that the first seal provides a supporting force for the movable scroll, effectively reducing the clamping force of the movable scroll, thereby reducing the axial load of the movable scroll, and further reducing the degree of wear between the movable scroll and the frame.

[0035] It is worth noting that even when no oil flows into the drainage channel, part of the gas in the exhaust chamber can flow into the drainage channel, and the gas can also push the first seal so that the first seal supports the movable scroll. The first seal can reduce the wear between the movable scroll and the frame when less oil flows into the drainage channel.

[0036] In a possible design, the frame includes: a support frame; a sealing plate, the annular groove is located between the sealing plate and the support frame, and the drainage portion is provided on the sealing plate.

[0037] In this design, the frame body is composed of a support frame and a sealing plate, that is, the frame body is a split structure, and the annular groove is located between the support frame and the sealing plate, that is, the support frame and the sealing plate enclose the annular groove. The frame body is set as a split structure, so that it is easy to process the annular groove and reduce the difficulty of processing the annular groove. For example, a groove can be set on the support frame, and when the sealing plate is installed on the support frame, the sealing plate blocks the opening of the groove, so as to form an annular groove between the support frame and the sealing plate.

[0038] In addition, since the sealing plate is an independent component, it is also convenient to process both sides of the sealing plate, so that the drainage portion can be conveniently processed on the sealing plate, further reducing the difficulty of processing the frame.

[0039] In a possible design, the support frame includes a first plug-in portion, the sealing plate includes a second plug-in portion, and the first plug-in portion and the second plug-in portion are interference fit.

[0040] In this design, the matching mode of the support frame and the sealing plate is defined. After the support frame and the sealing plate are processed and formed, the first plug-in portion on the support frame and the second plug-in portion on the sealing plate are plugged into each other. The first plug-in portion and the second plug-in portion are in an interference fit mode. After the first plug-in portion and the second plug-in portion are plugged into each other, the fixed installation of the support frame and the sealing plate is achieved, and there is no need to set a locking piece, which simplifies the structure of the product and reduces the installation process. Moreover, the interference fit mode of the first plug-in portion and the second plug-in portion allows the support frame and the sealing plate to be plugged into each other tightly, and the support frame and the sealing plate are not easy to separate.

[0041] Exemplarily, the first plug-in portion may be a convex structure, the groove is provided on the convex structure, and the second plug-in portion may be a concave structure, and the convex structure may be plugged into the concave structure.

[0042] Of course, in other designs, the sealing plate may also be locked to the support frame by a locking member.

[0043] In a possible design, the first sealing component includes: a polytetrafluoroethylene seal and / or a polyetheretherketone seal.

[0044] In this design, the first seal can be made of polytetrafluoroethylene material and / or polyetheretherketone material. Since the first seal needs to provide supporting force for the movable scroll, when the movable scroll rotates, the movable scroll and the first seal are in contact for a long time. The polytetrafluoroethylene material and the polyetheretherketone material have good wear resistance, which can reduce the wear of the first seal and the damage rate of the first seal, so that the first seal can play a stable sealing and supporting role.

[0045] In a possible design, the thickness of the first sealing member is greater than or equal to the depth of the oil collecting groove.

[0046] In this design, the relationship between the thickness of the first seal and the depth of the oil collecting groove is defined. The first seal can be pushed by oil or gas to support the movable scroll. In order to ensure that the first seal can stably support the movable scroll, it is necessary to ensure that the first seal can contact the movable scroll. When the thickness of the first seal is greater than or equal to the depth of the oil collecting groove, as long as the oil or gas pushes the first seal a small amount, the first seal can contact the movable scroll, ensuring the stability of the support of the first seal on the movable scroll.

[0047] In a possible design, the compressor further includes: an elastic member disposed in the oil collecting tank, wherein the elastic member is located between the frame and the first sealing member.

[0048] In this design, an elastic member is provided between the frame and the first seal. After the compressor is assembled, the elastic member is in an elastic deformation state. The elastic member accumulates elastic potential energy. The elastic member can push the first seal so that the first seal can stably contact the movable scroll, thereby stably supporting the movable scroll.

[0049] The elastic member provides power to the first seal, and the first seal can support the movable scroll, so the supporting force of the first seal on the movable scroll can be provided by the elastic member, gas and oil together, ensuring the manufacturing stability of the movable scroll.

[0050] In a possible design, the compressor further includes: a second sealing member disposed between the frame and the drainage channel.

[0051] In this design, a second seal is provided between the frame and the drainage channel, and the second seal seals the gap between the frame and the drainage channel to prevent oil from flowing into the gap between the frame and the drainage channel, thereby avoiding waste of oil and preventing it from flowing into the gap and causing pollution.

[0052] In a possible design, the top wall of the frame and the shell form an exhaust cavity, and the height of the top wall decreases toward the peripheral edge of the top wall; the first end of the drainage channel is lower than the highest point of the top wall.

[0053] In this design, the setting position of the first end of the drainage channel on the top wall of the frame is limited. Since the first end of the drainage channel is lower than the highest point of the top wall, the oil can flow along the high point to the low point of the top wall, which is conducive to the flow of oil into the drainage channel and ensures that there is oil between the movable scroll plate and the frame to play a lubricating role.

[0054] In a second aspect, the present invention proposes an air treatment device, comprising: a main body; and a compressor as in any possible design in the first aspect, the compressor being arranged on the main body.

[0055] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0057] Figure 1 One of the structural schematic diagrams of the compressor in an embodiment of the present invention is shown;

[0058] Figure 2 Shows Figure 1 The enlarged view of point A in the middle;

[0059] Figure 3 A schematic structural diagram of a movable scroll in an embodiment of the present invention is shown;

[0060] Figure 4 A schematic structural diagram of a sealing plate in an embodiment of the present invention is shown;

[0061] Figure 5 The second schematic diagram of the structure of the compressor in the embodiment of the present invention is shown;

[0062] Figure 6 The third structural schematic diagram of the compressor in the embodiment of the present invention is shown;

[0063] Figure 7 One of the schematic diagrams showing the distribution of oil in the exhaust chamber in an embodiment of the present invention is shown;

[0064] Figure 8 The second schematic diagram of the distribution of oil in the exhaust chamber in the embodiment of the present invention is shown;

[0065] Fig. 9 The third schematic diagram of the distribution of oil in the exhaust chamber in the embodiment of the present invention is shown;

[0066] Fig.10 The fourth schematic diagram of the distribution of oil in the exhaust chamber in the embodiment of the present invention is shown;

[0067] Fig.11 The fifth schematic diagram of the distribution of oil in the exhaust chamber in the embodiment of the present invention is shown;

[0068] Fig.12 The sixth schematic diagram of the distribution of oil in the exhaust chamber in the embodiment of the present invention is shown.

[0069] in, Figures 1 to 12 The corresponding relationship between the reference numerals and the component names is as follows:

[0070] 100 housing, 110 exhaust port, 120 exhaust chamber, 130 oil, 200 frame, 210 support frame, 220 sealing plate, 300 movable scroll, 310 oil return port, 320 compression chamber, 400 stationary scroll, 500 driving member, 600 drainage channel, 610 flow channel, 620 annular groove, 630 drainage part, 631 oil collecting chamber, 632 oil collecting groove, 633 oil discharge port, 700 first sealing member, 800 second sealing member, 900 exhaust pipe. DETAILED DESCRIPTION

[0071] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0072] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0073] Refer to the following Figures 1 to 12 A compressor and an air handling device provided according to some embodiments of the present invention are described.

[0074] like Figure 1As shown, in some embodiments of the present invention, a compressor is proposed, comprising: a housing 100, a frame 200, a movable scroll 300, a fixed scroll 400, a driving member 500 and a drainage channel 600, the housing 100 is provided with an exhaust port 110; the frame 200 is installed in the housing 100, an installation area is provided in the frame 200, an exhaust cavity 120 is formed between the frame 200 and the housing 100, and the exhaust cavity 120 is connected to the exhaust port 110; the movable scroll 300 and the fixed scroll 400 are connected to each other. The scroll 400 is installed in the installation area, and the movable scroll 300 is in contact with the frame 200; a compression chamber 320 is provided between the movable scroll 300 and the fixed scroll 400, and the compression chamber 320 is connected with the exhaust chamber 120; the driving member 500 is assembled with the movable scroll 300, and is used to drive the movable scroll 300 to rotate; the drainage channel 600 is provided on the frame 200, and the first end of the drainage channel 600 is connected with the exhaust chamber 120, and the second end of the drainage channel 600 faces the movable scroll 300.

[0075] The compressor provided in the present embodiment is provided with a drainage channel 600 on the frame 200, and the first end of the drainage channel 600 is connected to the exhaust chamber 120, and the oil in the exhaust chamber 120 can enter the drainage channel 600 through the first end of the drainage channel 600, and the second end of the guide channel is directed to the movable scroll 300, and the oil flowing into the drainage channel 600 flows toward the movable scroll 300 through the second end of the drainage channel 600, specifically flows to the matching surface of the movable scroll 300 facing the frame 200, because the oil contacts the movable scroll 300, as the movable scroll 300 rotates, the matching surface of the movable scroll 300 is basically covered with oil, and the end surface of the frame 200 facing the movable scroll 300 is the thrust surface, and because the space between the movable scroll 300 and the thrust surface is covered with oil, the movable scroll 300 is not easily worn, thereby reducing the failure rate of the compressor.

[0076] An installation area is provided in the frame 200, and the compressor also includes a fixed scroll 400 and a driving member 500. When the driving member 500 can drive the movable scroll 300 to rotate relative to the fixed scroll 400, the movable scroll 300 and the fixed scroll 400 can compress the refrigerant entering therebetween, so that the refrigerant is compressed into a high temperature and high pressure state.

[0077] The compressor further includes a housing 100, and an exhaust cavity 120 is formed between the housing 100 and the frame 200. The exhaust cavity 120 is connected to the compression cavity 320, and the refrigerant compressed to a high temperature and high pressure state can flow into the exhaust cavity 120. The housing 100 is also provided with an exhaust port 110, and the exhaust port 110 is connected to the exhaust cavity 120. The refrigerant flowing into the exhaust cavity 120 can be discharged from the housing 100 through the exhaust port 110, so that the refrigerant can be used by other components in the air conditioner. By providing the exhaust cavity 120 between the housing 100 and the frame 200, the refrigerant compressed to a high temperature and high pressure state is buffered in the exhaust cavity 120, so that the refrigerant is prevented from rushing out of the housing 100 quickly under a high pressure, thereby preventing the components in the air conditioner from being damaged due to the impact force of the refrigerant, and ensuring the operating stability of the air conditioner.

[0078] The refrigerant contains oil. When the compressed refrigerant flows into the exhaust chamber 120, part of the oil will be deposited in the exhaust chamber 120. Moreover, since the refrigerant entering the exhaust chamber 120 is in a high-pressure state, the pressure in the exhaust chamber 120 is relatively high. The oil deposited in the exhaust chamber 120 can flow into the drainage channel 600 under the action of pressure. The oil is pushed to the movable scroll 300 under the action of the gas pressure in the exhaust chamber 120, thereby realizing the lubrication function between the movable scroll 300 and the frame 200. When the movable scroll 300 rotates, the wear between the movable scroll 300 and the frame 200 can be effectively reduced, thereby avoiding the problems of jamming and blocking caused by wear, which is beneficial to improving the operating stability of the compressor.

[0079] In this embodiment, the driving member 500 may be a crankshaft.

[0080] Combination Figure 1 , Figure 2 and Figure 4 As shown, in a possible embodiment, the drainage channel 600 includes: a flow channel 610, an annular groove 620 and at least two drainage portions 630, the first end of the flow channel 610 is connected to the exhaust chamber 120; the annular groove 620 is machined and formed on the frame 200, and the second end of the flow channel 610 is connected to the annular groove 620; at least two drainage portions 630 are machined and formed on the frame 200, at least two drainage portions 630 are connected to the annular groove 620, and the drainage portion 630 faces the movable scroll 300.

[0081] In this embodiment, the first end of the flow channel 610 is connected to the exhaust chamber 120, and the oil is pushed into the flow channel 610 under the action of the gas pressure in the exhaust chamber 120. The frame 200 is provided with an annular groove 620, which is connected to the second end of the flow channel 610. The oil in the flow channel 610 can flow into the annular groove 620, so that the oil can not fill the entire annular groove 620. A drainage portion 630 is also provided on the frame 200, and the number of the drainage portions 630 is at least two, and any of the at least two drainage portions 630 is connected to the annular groove 620, and the oil in the annular groove 620 can flow into the at least two drainage portions 630, and at least two drainage portions 630 face the movable scroll 300. The oil flowing out of the oil drainage portion 630 contacts the movable scroll 300, thereby realizing the lubrication function between the movable scroll 300 and the frame 200. When the movable scroll 300 rotates, the wear between the movable scroll 300 and the frame 200 can be effectively reduced, and the problems of jamming and blocking caused by wear can be avoided, which is beneficial to improving the operating stability of the compressor.

[0082] The annular groove 620 is annular, and at least two drainage portions 630 are distributed along the circumference of the annular groove 620. By providing two drainage portions 630, at least two oil drainage points are provided on the frame 200. By increasing the number of oil drainage points, the speed at which the mating surface in the movable scroll 300 is filled with oil can be increased, thereby facilitating the improvement of the lubrication efficiency between the movable scroll 300 and the frame 200. Moreover, by providing at least two oil drainage portions, the problem of partial structure of the mating surface in the movable scroll 300 not being contacted by oil can be avoided, which is conducive to improving the lubrication effect between the movable scroll 300 and the frame 200.

[0083] The extension line of the rotation center of the orbiting scroll 300 passes through the annular area of ​​the annular groove 620 , and the lubrication effect on the orbiting scroll 300 is further improved by limiting the opening position of the annular groove 620 relative to the orbiting scroll 300 .

[0084] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in a possible embodiment, the orbiting scroll 300 includes at least one oil return port 310, and the oil return port 310 is connected to the compression chamber 320. When the orbiting scroll 300 rotates to a first position, the oil return port 310 is connected to the discharge portion 630. When the orbiting scroll 300 rotates to a second position, the oil return port 310 and the discharge portion 630 are staggered.

[0085] In this embodiment, at least one oil return port 310 is provided on the orbiting scroll 300 , wherein the oil return port 310 is provided on the end surface of the orbiting scroll 300 facing the thrust surface, that is, provided on the mating surface of the orbiting scroll 300 . During the rotation of the movable scroll 300, the oil return port 310 can be opposite to or staggered with the discharge portion 630. Specifically, when the movable scroll 300 rotates to the first position, the oil return port 310 is connected to the discharge portion 630, so the first position is the position where the oil return port 310 and the discharge portion 630 are opposite to each other. When the movable scroll 300 rotates to the second position, the oil return port 310 and the discharge portion 630 are staggered, so the second position is the position where the oil return port 310 and the discharge portion 630 are staggered. That is to say, during the cyclic rotation of the movable scroll 300, the oil return port 310 can be opposite to or staggered with the discharge portion 630 as the movable scroll 300 rotates.

[0086] The oil can be discharged through the discharge portion 630. When the discharge portion 630 and the oil return port 310 are opposite to each other, the oil discharged from the discharge portion 630 can flow into the oil return port 310. The oil can flow back to the compression chamber 320 through the oil return port 310. The oil flowing into the compression chamber 320 can flow into the exhaust chamber 120 again driven by the refrigerant, thereby realizing the circulation of the oil, which is beneficial to achieving sufficient lubrication of the movable scroll plate 300.

[0087] The number of the oil return ports 310 may be one or more. By increasing the number of the oil return ports 310 , the circulation speed of the oil can be increased.

[0088] When there are multiple oil return ports 310 , the multiple oil return ports 310 are arranged at intervals, so that a portion of the oil can be used to lubricate the movable scroll 300 , and another portion of the oil can flow back to the compression chamber 320 .

[0089] The oil return port 310 can pass through different drainage portions 630 on the frame 200 in sequence, so that the oil return port 310 can be filled with oil multiple times, and the oil return port 310 can carry oil to various positions on the orbiting scroll 300 and the frame 200 .

[0090] A low-pressure area and a high-pressure area that are connected to each other are provided in the compression chamber 320 . The oil return port 310 is connected to the low-pressure area, and the high-pressure area is connected to the exhaust chamber 120 .

[0091] In a possible embodiment, the frame 200 and the orbiting scroll 300 are cut along a first direction, and the cross-sectional area of ​​the discharge portion 630 is greater than the cross-sectional area of ​​the oil return port 310 . The first direction is perpendicular to the axial direction of the orbiting scroll 300 .

[0092] In this embodiment, since the cross-sectional area of ​​the discharge portion 630 is larger than the cross-sectional area of ​​the oil return port 310, the opening of the discharge portion 630 is larger, while the opening of the oil return port 310 is smaller. When the oil return port 310 and the discharge portion 630 are opposite to each other, the oil discharged from the discharge portion 630 can quickly flow into the oil return port 310, so that the oil can flow back into the compression chamber 320 through the oil return port 310, thereby preventing the oil entering the oil return port 310 from falling quickly under the action of gravity due to the excessive radial dimension of the oil return port 310, thereby making it difficult to circulate the oil into the compression chamber 320. Therefore, by limiting the relative size relationship between the cross-sectional area of ​​the discharge portion 630 and the cross-sectional area of ​​the oil return port 310, the oil return effect can be improved.

[0093] When the frame 200 is cut along the first aspect, the cross-section of the oil return port 310 may be in a rhombus, circular, polygonal or elliptical shape, etc. When there are multiple oil return ports 310 , the cross-sections of different oil return ports 310 may be the same or different.

[0094] In a possible embodiment, the depth H of the oil return port 310 satisfies 0.1 mm≤H≤1 mm.

[0095] In this embodiment, the range of the depth H of the oil return port 310 is limited. When the depth H of the oil return port 310 is less than 0.1 mm, the depth of the oil return port 310 is small, and the structure of the movable scroll 300 at the oil return port 310 is thin, resulting in poor structural stability of the movable scroll 300, and the movable scroll 300 is easily damaged during operation. When the depth H of the oil return port 310 is greater than 1 mm, the depth of the oil return port 310 is large, and under the influence of pressure, part of the oil may be difficult to flow back into the compression chamber 320. Therefore, in the present invention, the depth of the oil return port 310 is limited to between 0.1 mm and 1 mm, which can not only improve the oil return effect, but also ensure the structural stability of the movable scroll 300. The movable scroll 300 is not easy to be damaged or broken at the oil return port 310, and the damage rate of the movable scroll 300 during operation is reduced, thereby improving the functional stability of the compressor.

[0096] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in a possible embodiment, the drainage portion 630 includes: an oil collecting chamber 631 , an oil collecting groove 632 and an oil discharge port 633 , the oil collecting groove 632 is distributed along the circumference of the opening of the oil collecting chamber 631 ; the oil discharge port 633 connects the annular groove 620 and the oil collecting groove 632 .

[0097] In this embodiment, an oil drain port 633 is provided on the frame 200 , a first end of the oil drain port 633 is connected to the annular groove 620 , and a second end of the oil drain port 633 is connected to the oil collecting groove 632 , and the oil in the annular groove 620 flows into the oil collecting groove 632 through the oil drain port 633 .

[0098] An oil collecting chamber 631 is also provided on the frame body 200, and the oil collecting groove 632 is provided at the opening of the oil collecting chamber 631, so that the oil collecting groove 632 is connected to the oil collecting chamber 631, and the oil in the oil collecting groove 632 can flow into the oil collecting chamber 631, and the oil collecting chamber 631 stores the oil. When the oil return port 310 rotates to the opening of the oil collecting chamber 631, the oil in the oil collecting chamber 631 flows into the oil return port 310, thereby realizing the lubrication function between the movable scroll plate 300 and the frame body 200.

[0099] Since the oil collecting groove 632 is arranged at the opening of the oil collecting cavity 631 , the bottom wall of the oil collecting groove 632 is lower than the thrust surface of the frame 200 , and the oil return port 310 can be arranged on the bottom wall of the oil collecting groove 632 to ensure that the oil can stably flow into the oil collecting cavity 631 .

[0100] The number of the oil drain ports 633 located on one oil collecting groove 632 may be at least two, and the at least two oil drain ports are arranged at intervals along the circumference of the oil collecting groove 632 .

[0101] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a possible embodiment, the compressor further includes: a first seal 700 , which is disposed in the oil collecting groove 632 , and the first seal 700 blocks the oil drain port 633 .

[0102] In this embodiment, a first seal 700 is installed in the oil collecting groove 632 , and the first seal 700 blocks the oil drain port 633 . Specifically, when no oil flows into the oil drain port 633 , the first seal 700 closes the oil drain port 633 .

[0103] When oil flows into the oil discharge port 633, the oil can push the first seal 700, so that a gap appears between the first seal 700 and the oil discharge hole. At this time, the first seal 700 opens the oil discharge port 633, and the oil in the oil discharge port 633 can flow into the oil collecting chamber 631. By providing the first seal 700, the oil flowing out of the oil discharge port 633 can flow into the oil collecting chamber 631 under the sealing effect of the first seal 700, and will not flow directly into the gap between the movable scroll 300 and the frame 200, thereby avoiding the problem of oil leakage caused by excessive oil between the movable scroll 300 and the frame 200. The sealing effect of the first seal 700 can avoid oil waste and ensure that there is a small amount of oil between the movable scroll 300 and the frame 200 to play a lubricating role.

[0104] Since the movable scroll is located on one side of the thrust surface of the frame 200, the movable scroll plate 300 can limit the first seal 700. Even if the oil pushes the first seal 700, it only pushes part of the structure on the first seal 700 to deform, and will not push the first seal 700 away from the oil collecting groove 632.

[0105] In addition, under the push of the oil, the first seal 700 is in contact with the movable scroll 300, so that the first seal 700 can also push the movable scroll 300, so that the first seal 700 provides a supporting force for the movable scroll 300, effectively reducing the clamping force of the movable scroll 300, thereby reducing the axial load of the movable scroll 300, and further reducing the degree of wear between the movable scroll 300 and the frame 200.

[0106] It is worth noting that even when no oil flows into the drainage channel 600, part of the gas in the exhaust chamber 120 can flow into the drainage channel 600, and the gas can also push the first seal 700, so that the first seal 700 supports the movable scroll 300. The first seal 700 can reduce the wear between the movable scroll 300 and the frame 200 when less oil flows into the drainage channel 600.

[0107] Combination Figure 1 and Figure 2 As shown, in a possible embodiment, the frame body 200 includes: a support frame 210 and a sealing plate 220 , the annular groove 620 is located between the sealing plate 220 and the support frame 210 , and the drainage portion 630 is disposed on the sealing plate 220 .

[0108] In this embodiment, the frame 200 is composed of two parts, namely, the support frame 210 and the sealing plate 220, that is, the frame 200 is a split structure, and the annular groove 620 is located between the support frame 210 and the sealing plate 220, that is, the support frame 210 and the sealing plate 220 enclose the annular groove 620. The frame 200 is set as a split structure, so that it is easy to process the annular groove 620 and reduce the difficulty of processing the annular groove 620. For example, a groove can be set on the support frame 210, and when the sealing plate 220 is installed on the support frame 210, the sealing plate 220 blocks the opening of the groove, so that the annular groove 620 is formed between the support frame 210 and the sealing plate 220.

[0109] In addition, since the sealing plate 220 is an independent component, it is also convenient to process both sides of the sealing plate 220 , so that the drainage portion 630 can be conveniently processed on the sealing plate 220 , further reducing the difficulty of processing the frame 200 .

[0110] In a possible embodiment, the support frame 210 includes a first plug-in portion, the sealing plate 220 includes a second plug-in portion, and the first plug-in portion and the second plug-in portion are interference fit.

[0111] In this embodiment, the matching mode of the support frame 210 and the sealing plate 220 is defined. After the support frame 210 and the sealing plate 220 are processed and formed, the first plug-in portion on the support frame 210 and the second plug-in portion on the sealing plate 220 are plugged into each other. The first plug-in portion and the second plug-in portion are in an interference fit mode. After the first plug-in portion and the second plug-in portion are plugged into each other, the fixed installation of the support frame 210 and the sealing plate 220 is achieved, and there is no need to set a locking piece, which simplifies the structure of the product and reduces the installation process. Moreover, the interference fit mode of the first plug-in portion and the second plug-in portion allows the support frame 210 and the sealing plate 220 to be plugged into each other, and the support frame 210 and the sealing plate 220 are not easy to separate.

[0112] Exemplarily, the first plug-in portion may be a convex structure, the groove is provided on the convex structure, and the second plug-in portion may be a concave structure, and the convex structure may be plugged into the concave structure.

[0113] Of course, in other embodiments, the sealing plate 220 may also be locked to the support frame 210 by a locking member.

[0114] In a possible embodiment, the first sealing member 700 includes: a polytetrafluoroethylene sealing member and / or a polyetheretherketone sealing member.

[0115] In this embodiment, the first seal 700 can be made of polytetrafluoroethylene material and / or polyetheretherketone material. Since the first seal 700 needs to provide support force for the movable scroll 300, when the movable scroll 300 rotates, the movable scroll 300 and the first seal 700 are in contact for a long time. The polytetrafluoroethylene material and the polyetheretherketone material have good wear resistance, which can reduce the wear of the first seal 700 and reduce the damage rate of the first seal 700, so that the first seal 700 can play a stable sealing and supporting role.

[0116] In a possible embodiment, the thickness of the first sealing member 700 is greater than or equal to the depth of the oil collecting groove 632 .

[0117] In this embodiment, the relationship between the thickness of the first seal 700 and the depth of the oil collecting groove 632 is defined, and the first seal 700 can be pushed by oil or gas to support the movable scroll 300. In order to ensure that the first seal 700 can stably support the movable scroll 300, it is necessary to ensure that the first seal 700 can contact the movable scroll 300. In the case where the thickness of the first seal 700 is greater than or equal to the depth of the oil collecting groove 632, as long as the oil or gas pushes the first seal 700 a small amount, the first seal 700 can be brought into contact with the movable scroll 300, thereby ensuring the stability of the support of the first seal 700 on the movable scroll 300.

[0118] In a possible embodiment, the compressor further includes: an elastic member, which is disposed in the oil collecting groove 632 and is located between the frame 200 and the first sealing member 700 .

[0119] In this embodiment, an elastic member is provided between the frame 200 and the first seal 700. After the compressor is assembled, the elastic member is in an elastic deformation state, and the elastic member accumulates elastic potential energy. The elastic member can push the first seal 700, so that the first seal 700 can stably contact the movable scroll 300, thereby stably supporting the movable scroll 300.

[0120] In this embodiment, the elastic member may be a compression spring.

[0121] The elastic member provides power to the first seal 700 , and the first seal 700 can support the movable scroll 300 , so the supporting force of the first seal 700 on the movable scroll 300 can be provided by the elastic member, gas and oil together, ensuring the manufacturing stability of the movable scroll 300 .

[0122] like Figure 1 As shown, in a possible embodiment, the compressor further includes: a second sealing member 800 , and the second sealing member 800 is disposed between the frame 200 and the drainage channel 600 .

[0123] In this embodiment, a second seal 800 is provided between the frame 200 and the drainage channel 600. The second seal 800 seals the gap between the frame 200 and the drainage channel 600 to prevent oil from flowing into the gap between the frame 200 and the drainage channel 600, thereby avoiding waste of oil and preventing oil from flowing into the gap and causing pollution.

[0124] like Figure 1 As shown, the second sealing member 800 may include two parts, namely, a welding member and a sealing ring. The flow channel 610 includes two parts. The first part of the flow channel 610 is a solid pipe, which passes through the installation area of ​​the frame 200. The second part of the flow channel 610 is a flow pipe opened inside the frame 200. The solid pipe is installed on the frame 200, and the solid pipe has two contact points with the frame 200. Figure 1 Taking the middle perspective as an example, the upper end of the physical pipe is fixed to the frame 200 by welding. The welding method can not only realize the connection between the physical pipe and the frame 200, but also play a sealing role. A sealing ring is installed at the lower end of the physical pipe, that is, the physical pipe and the frame 200 are sealed by the sealing ring.

[0125] like Figure 1 As shown, in a possible embodiment, the top wall of the frame 200 and the shell 100 enclose an exhaust cavity 120, and the height of the top wall decreases toward the peripheral edge of the top wall; the first end of the drainage channel 600 is lower than the highest point of the top wall.

[0126] In this embodiment, the setting position of the first end of the drainage channel 600 on the top wall of the frame 200 is limited. Since the first end of the drainage channel 600 is lower than the highest point of the top wall, the oil can flow along the high point to the low point of the top wall, which is conducive to the flow of oil into the drainage channel 600, ensuring the presence of oil between the movable scroll 300 and the frame 200 to lubricate.

[0127] The inner diameter of the solid pipe is larger than the inner diameter of the flow pipe portion, ensuring that the oil can flow smoothly into the flow channel 610 .

[0128] Exemplarily, the inner diameter of the solid pipe may be twice the inner diameter of the flow tube portion.

[0129] Combination Figure 1 and Figure 6 As shown, in a possible application, an exhaust pipe 900 is installed at the exhaust port 110, and the axis center of the exhaust pipe 900 is assumed to be axis J, the axis center of the crankshaft is assumed to be axis B, and the axis J and the axis B intersect and the intersection point is C ( Figure 6The middle perspective is a top view, in which the axis B and the intersection C coincide in the figure, so only the intersection C is marked). Let the straight line perpendicular to the axis J and passing through the intersection C be straight line D, and the compressor is cut along the axial direction of the crankshaft with straight line D, and the top wall of the frame 200 is cut into a first area and a second area. The first area is located on the same side as the exhaust port 110, and the second area is located on a different side from the exhaust port 110.

[0130] Along the direction perpendicular to the axis B, straight line E and straight line F are determined. Straight line E and straight line F are symmetrical with respect to axis J (straight line F is not marked in the figure). The angles between straight line E and axis J and between straight line F and axis J are both α, α≤60°, and the first end of the drainage channel 600 is located in the second area of ​​the top wall of the frame 200 and is within the angle range between straight line E and straight line F.

[0131] Oil will be deposited on the top wall of the frame 200, and a larger amount of oil will be deposited in the second area of ​​the top wall and at a position within the angle range between the straight line E and the straight line F. Therefore, setting the first end of the drainage channel 600 within the above range can increase the amount of oil entering the drainage channel 600 and ensure the lubrication effect between the orbiting scroll 300 and the frame 200.

[0132] Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 The diagram shows the distribution of the oil 130 in the exhaust chamber 120 under different working conditions.

[0133] In an embodiment of the present invention, an air treatment device is provided, comprising: a body and a compressor as in any of the above possible embodiments, the compressor being installed on the body. The air treatment device in this embodiment can achieve the technical effect of the compressor as in any of the above possible embodiments.

[0134] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0135] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0136] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compressor, characterized in that: include: A housing having an exhaust port; A frame is arranged in the shell, a mounting area is arranged in the frame, an exhaust cavity is formed between the frame and the shell, and the exhaust cavity is communicated with the exhaust port; A movable scroll, disposed in the installation area, the movable scroll being in contact with the frame; A fixed scroll plate is arranged in the installation area, a compression chamber is arranged between the movable scroll plate and the fixed scroll plate, and the compression chamber is communicated with the exhaust chamber; A driving member, assembled with the movable scroll, and used for driving the movable scroll to rotate; A drainage channel is provided on the frame, a first end of the drainage channel is connected to the exhaust chamber, and a second end of the drainage channel faces the movable scroll; The drainage channel comprises: A flow channel, a first end of which is connected to the exhaust cavity; An annular groove is provided on the frame, and the second end of the flow channel is connected to the annular groove; At least two drainage parts are provided on the frame, the at least two drainage parts are distributed along the circumference of the annular groove, the at least two drainage parts are connected to the annular groove, and the drainage parts face the movable scroll; The drainage portion comprises: Oil collecting chamber; An oil collecting groove is distributed along the circumference of the opening of the oil collecting cavity; An oil discharge port, communicating with the annular groove and the oil collecting groove; The frame comprises: Support frame; The sealing plate, the annular groove is located between the sealing plate and the support frame, and the drainage portion is arranged on the sealing plate.

2. The compressor according to claim 1, characterized in that The movable scroll includes at least one oil return port, which is connected to the compression chamber. When the movable scroll rotates to a first position, the oil return port is connected to the discharge portion. When the movable scroll rotates to a second position, the oil return port is staggered with the discharge portion.

3. The compressor according to claim 2, characterized in that When the frame and the orbiting scroll are cut along a first direction, the cross-sectional area of ​​the discharge portion is greater than the cross-sectional area of ​​the oil return port, and the first direction is perpendicular to the axial direction of the orbiting scroll.

4. The compressor according to claim 2, characterized in that The depth H of the oil return port satisfies 0.1 mm ≤ H ≤ 1 mm.

5. The compressor according to claim 1, characterized in that The compressor also includes: A first sealing member is disposed in the oil collecting groove, and the first sealing member blocks the oil drain port.

6. The compressor according to claim 1, characterized in that The support frame includes a first plug-in portion, and the sealing plate includes a second plug-in portion. The first plug-in portion and the second plug-in portion are interference-fitted.

7. The compressor according to claim 5, characterized in that The first sealing member includes: a polytetrafluoroethylene sealing member and / or a polyetheretherketone sealing member.

8. The compressor according to claim 5, characterized in that The thickness of the first sealing member is greater than or equal to the depth of the oil collecting groove.

9. The compressor according to claim 5, characterized in that The compressor also includes: An elastic member is arranged in the oil collecting groove, and the elastic member is located between the frame and the first sealing member.

10. The compressor according to any one of claims 1 to 9, characterized in that The compressor also includes: The second sealing member is arranged between the frame and the drainage channel.

11. The compressor according to any one of claims 1 to 9, characterized in that The top wall of the frame and the shell enclose the exhaust cavity, and the height of the top wall decreases toward the peripheral edge of the top wall; The first end of the drainage channel is lower than the highest point of the top wall.

12. An air treatment device, characterized in that: include: ontology; The compressor according to any one of claims 1 to 11, wherein the compressor is arranged on the body.

Images