Pump body assembly, compressor and air conditioner

Abstract

The application provides a pump body assembly, a compressor and an air conditioner, a compression assembly and a check valve piece; the compression assembly comprises a compression structure, and the compression structure has a vent; the check valve piece opens the vent to be in an open position; the check valve piece closes the vent to be in a closed position; the check valve piece can move on the surface of the compression assembly, so that the valve piece assembly moves between the open position and the closed position; when the compression structure is in a working state, the check valve piece is in the open position; when the moving direction of the compression structure is opposite to the moving direction in the working state, the check valve piece is in the closed position; and the check valve piece is attached to the surface of the compression assembly during the movement. The pump body assembly, the compressor and the air conditioner can effectively play a check valve role, and can reduce noise and power consumption.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, specifically to a pump assembly, a compressor, and an air conditioner. Background Technology

[0002] Currently, scroll compressors are constant volume ratio compressors. During compressor shutdown, the discharge pressure at the vent of the stationary scroll is greater than the suction pressure at the suction pipe. Due to this pressure difference, the high-pressure refrigerant will flow back to the low-pressure suction port, causing the moving scroll of the compressor to reverse. To prevent the compressor from reversing, anti-reverse structure is usually installed at the suction port or vent of the stationary scroll to prevent the discharge pressure from flowing back into the suction pipe.

[0003] However, during normal compressor operation, the first surface of the anti-reverse valve plate abuts against the elastic element, while the intake pressure acts on the second surface of the anti-reverse valve plate, compressing the elastic element. Since the first and second surfaces of the anti-reverse valve plate are surrounded by different gases, and the gases on both sides of the anti-reverse valve plate are flowing gases, the pressure values ​​on both sides of the anti-reverse valve plate are constantly changing. At this time, the anti-reverse valve plate is always in a dynamic equilibrium process, and it vibrates continuously during the gas pulsation, thus aggravating the vibration and noise at the compressor's intake port and increasing the overall vibration and noise of the compressor. Furthermore, because it is constantly in dynamic equilibrium, the compressor repeatedly performs work, resulting in an increase in wasted power.

[0004] Therefore, how to provide a pump assembly, compressor, and air conditioner that can effectively prevent backflow and reduce noise and power consumption has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] Therefore, the technical problem to be solved by this application is to provide a pump assembly, compressor and air conditioner that can effectively prevent backflow and reduce noise and power consumption.

[0006] To address the aforementioned problems, this application provides a pump body assembly, comprising:

[0007] A compression assembly, comprising a compression structure having a vent;

[0008] Check valve disc; the check valve disc opens the vent port as the open position; the check valve disc closes the vent port as the closed position; the check valve disc can move on the surface of the compression assembly so that the valve disc assembly can move between the open and closed positions; when the compression structure is in the working state, the check valve disc is in the open position; when the direction of movement of the compression structure is opposite to the direction of movement in the working state, the check valve disc is in the closed position; the check valve disc is in contact with the surface of the compression assembly during movement.

[0009] Furthermore, the compression assembly also includes a support structure, on which the compression structure is mounted; the support structure is provided with a gas passage, the inlet end of which is connected to the vent; a check valve is provided at the outlet end of the gas passage, so that the check valve can open or close the gas passage under the drive of the movable structure, thereby opening or closing the vent; and when the check valve is in the open position, the check valve is in contact with the surface of the support structure.

[0010] Furthermore, the check valve disc is rotatably connected to the support structure, so that the check valve disc can rotate between the open and closed positions.

[0011] Furthermore, the support structure is also provided with a first limiting structure, which is used to limit the movement of the check valve plate so that the support structure can only move within a first preset range.

[0012] Furthermore, the pump body assembly also includes a movable structure; the movable structure is connected to the compression structure; the movable structure is used to drive the compression structure to compress the gas; when the direction of movement of the movable structure is opposite to the direction of movement of the compression structure in the working state, the movable structure can drive the check valve plate to move to the closed position.

[0013] Furthermore, the movable structure also includes a crankshaft, which is connected to the compression structure and is used to drive the compression structure to compress the gas; the crankshaft is also movably connected to the support structure, and when the rotation direction of the crankshaft is opposite to the rotation direction of the compression structure in the working state, the crankshaft can drive the check valve plate to move to the closed position.

[0014] Furthermore, the pump body assembly also includes a transmission structure; the transmission structure is connected to the crankshaft; the transmission structure and the check valve are positioned radially corresponding to each other in the compression structure; when the rotation direction of the crankshaft is opposite to the rotation direction of the compression structure in the working state, the crankshaft can drive the transmission structure to move, thereby driving the check valve to move to the closed position.

[0015] Furthermore, the transmission structure is a strip structure, with the first end of the transmission structure rotatably connected to the crankshaft; the second end of the transmission structure extends to the outer circumference of the crankshaft, and the second end of the transmission structure is positioned corresponding to the check valve plate in the radial direction of the compression structure.

[0016] Furthermore, a second limiting structure is provided on the crankshaft. The second limiting structure is used to limit the movement of the transmission structure so that the transmission structure can only move within a second preset range.

[0017] According to another aspect of this application, a compressor is provided, including a pump body assembly, the pump body assembly being the pump body assembly described above.

[0018] According to another aspect of this application, an air conditioner is provided, including a compressor, wherein the compressor is the compressor described above.

[0019] The pump assembly, compressor, and air conditioner provided in this application can effectively prevent backflow and reduce noise and power consumption. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the pump body assembly in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the installation structure of the pump body assembly in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the cooperation structure between the check valve plate and the transmission structure in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the support structure in the embodiments of this application;

[0024] Figure 5 This is a partial structural diagram of the crankshaft in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the compressor in the shutdown state in the embodiments of this application;

[0026] Figure 7 This is a schematic diagram of the compressor opening its vent in an embodiment of this application.

[0027] Figure 8 This is a schematic diagram of the compressor in the embodiment of this application at the start of reverse rotation;

[0028] Figure 9 This is a schematic diagram of the compressor in the reverse rotation process in the embodiments of this application;

[0029] Figure 10 This is a schematic diagram of the compressor in an embodiment of this application.

[0030] 1. Compression assembly; 11. Compression structure; 111. Vent; 12. Support structure; 121. Gas passage; 1211. Outlet end; 122. First shaft hole; 2. Check valve plate; 21. First limiting structure; 22. First actuating part; 23. First mounting shaft; 3. Movable structure; 4. Transmission structure; 41. Second limiting structure; 42. Second actuating part; 43. Second mounting shaft. Detailed Implementation

[0031] See also Figure 1-10As shown, a pump assembly includes a compression assembly 1 and a check valve 2. The compression assembly 1 includes a compression structure 11 with a vent 111. The vent 111 is in an open position when the check valve 2 opens it, and in a closed position when the check valve 2 closes it. The check valve 2 is movable on the surface of the compression assembly 1, allowing the valve assembly to move between the open and closed positions. When the compression structure 11 is in operation, the check valve 2 is in the open position. When the direction of movement of the compression structure 11 is opposite to the direction of movement in the operation state, the check valve 2 is in the closed position. When the check valve 2 is in the open position, it is in contact with the surface of the compression assembly 1. During operation, the check valve plate 2 remains in contact with the surface of the compression assembly 1. In this application, when the check valve plate 2 is in the open position, it is in contact with the surface of the compression assembly 1, thus eliminating any gap between them. This prevents the two surfaces of the valve plate from being surrounded by different gases, ensuring the check valve plate 2 is not in a dynamic equilibrium state and thus avoids vibration. This allows for noise reduction, power consumption reduction, and prevention of repeated work by the compressor, thus reducing unnecessary power consumption, while still providing a check function. This application eliminates the need for repeated work during normal compressor operation, reducing additional power consumption. It solves the problem of existing check structures (whether exhaust or intake check) continuously performing repeated work during compressor operation. The vent 111 includes at least one of an exhaust port or an intake port.

[0032] This application also discloses some embodiments. The compression assembly 1 further includes a support structure 12, on which the compression structure 11 is disposed. A gas passage 121 is provided on the support structure 12, with the inlet end of the gas passage 121 communicating with the vent 111. A check valve 2 is disposed at the outlet end 1211 of the gas passage 121, so that the check valve 2 can open or close the gas passage 121 under the drive of the movable structure 3, thereby opening or closing the vent 111. When the check valve 2 is in the open position, it is in contact with the surface of the support structure 12. The gas passage 121 includes at least one of an intake passage or an exhaust passage. When the vent 111 is the compressor exhaust port, the gas passage 121 is an exhaust passage, used to guide the gas discharged from the exhaust port outwards. When the vent 111 is the compressor intake port, the gas passage 121 is an intake passage, used to guide gas into the intake port. The support structure 12 includes an upper bracket.

[0033] This application also discloses some embodiments in which the check valve plate 2 is rotatably connected to the support structure 12, so that the check valve plate 2 can rotate between the open position and the closed position. The check valve plate 2 is provided with a first mounting shaft 23, and the support structure 12 is provided with a first shaft hole 122. The first mounting shaft 23 is rotatably disposed in the first shaft hole 122; and the central axes of the first mounting shaft 23 and the first shaft hole 122 are both perpendicular to the surface of the support structure 12 on which the check valve plate 2 is mounted; this allows the check valve plate 2 to fit against the surface of the support structure 12 on which the check valve plate 2 is mounted.

[0034] This application also discloses some embodiments in which a first limiting structure 21 is provided on the support structure 12. The first limiting structure 21 is used to limit the movement of the check valve plate 2, so that the support structure 12 can only move within a first preset range. The first limiting structure 21 includes a first limiting protrusion, and the number of the first limiting protrusions is set to two sets, with the two sets of first limiting protrusions located on both sides of the circumference of the check valve plate 2, respectively; this can limit the movement of the check valve plate 2 in the circumferential direction. Each set of first limiting protrusions includes at least one first limiting protrusion. The two sets of first limiting protrusions are a rear limiting protrusion and a front protrusion, respectively.

[0035] This application also discloses some embodiments, in which the pump body assembly further includes a movable structure 3; the movable structure 3 is connected to the compression structure 11; the movable structure 3 is used to drive the compression structure 11 to move in order to compress the gas; when the direction of movement of the movable structure 3 is opposite to the direction of movement of the compression structure 11 in the working state, the movable structure 3 can drive the check valve plate 2 to move to the closed position. That is, when the compressor stops working, the compression structure 11 reverses and drives the movable structure 3 to reverse, at which time it can drive the check valve plate 2 to move to the closed position to close the vent, thereby preventing the high-pressure refrigerant from flowing back to the low-pressure suction port.

[0036] This application also discloses some embodiments. The movable structure 3 further includes a crankshaft connected to the compression structure 11. The crankshaft drives the compression structure 11 to move, thereby compressing the gas. The crankshaft is also movably connected to the support structure 12. When the rotation direction of the crankshaft is opposite to the rotation direction of the compression structure 11 in the working state, the crankshaft can drive the check valve plate 2 to move to the closed position. A shaft hole is provided on the support structure 12, and the crankshaft is installed in the shaft hole so that the crankshaft is movably connected to the support structure 12. The compression structure 11 includes a moving scroll and a stationary scroll; the crankshaft is connected to the moving scroll. When reversing, the crankshaft can drive the check valve plate 2 to close the vent 111, preventing the high-pressure refrigerant from flowing back to the low-pressure intake port.

[0037] This application also discloses some embodiments, in which the pump body assembly further includes a transmission structure 4; the transmission structure 4 is connected to the crankshaft; the transmission structure 4 and the check valve plate 2 are positioned radially opposite to each other on the compression structure 11; when the rotation direction of the crankshaft is opposite to the rotation direction of the compression structure 11 in the working state, the crankshaft can drive the transmission structure 4 to move, thereby driving the check valve plate 2 to move to the closed position. The transmission structure 4 is connected to the crankshaft, and when the crankshaft moves, it drives the transmission structure 4 to move. When the transmission structure 4 moves to the position corresponding to the check valve plate 2, it can actuate the check valve plate 2.

[0038] This application also discloses some embodiments in which the transmission structure 4 is a strip structure, the first end of the transmission structure 4 is rotatably connected to the crankshaft, the second end of the transmission structure 4 extends to the outer periphery of the crankshaft, and the second end of the transmission structure 4 is correspondingly positioned to the check valve plate 2 in the radial direction of the compression structure 11. The transmission structure 4 can be a curved strip structure or a straight strip structure; further, the strip structure is an arc structure, the first end of the arc structure is provided with a second mounting shaft 43; the crankshaft is provided with a second shaft hole; the second mounting shaft 43 is rotatably disposed in the second shaft hole; and the second end of the arc structure is provided with a second actuating part 42; the check valve plate 2 is provided with a first actuating part 22, which can drive the transmission structure 4 to move when the crankshaft reverses, and when the transmission structure 4 moves to the corresponding position, the second actuating part 42 can move the check valve plate 2 to the closed position.

[0039] This application also discloses some embodiments in which a second limiting structure 41 is provided on the crankshaft. The second limiting structure 41 is used to limit the movement of the transmission structure 4, so that the transmission structure 4 can only move within a second preset range. The second limiting structure 41 includes a second limiting protrusion, and the number of the second limiting protrusions is set to two sets, with the two sets of second limiting protrusions located on both sides of the circumference of the transmission structure 4 respectively; this can limit the movement of the transmission structure 4 in the circumferential direction. Each set of second limiting protrusions includes at least one second limiting protrusion. A mounting groove is formed on the crankshaft; a second shaft hole is formed on the inner wall of the mounting groove; a second mounting shaft 43 is installed in the second shaft hole. The second shaft hole is aligned with the central axis direction of the first shaft hole 122; the inner wall surfaces of the mounting groove on both sides of the second mounting shaft 43 form the second limiting structure 41. An annular groove is formed on the crankshaft, extending around the circumference of the crankshaft; the annular groove is positioned corresponding to the mounting groove. The two sets of second limiting protrusions are a rear end boss and a front end boss, respectively. Figure 6 As shown, when the compression structure 11 is in the stopped state, the check valve plate 2 is in the closed position; as Figure 7As shown, when the compression structure 11 is in normal working condition, that is, when the crankshaft drives the compression structure 11 to rotate in the first direction, the transmission structure 4, under the action of inertia, comes into contact with the second limiting protrusion group away from the first direction. At this time, when the transmission structure 4 passes the check valve plate 2, it interferes with the check valve plate 2, thereby pushing the check valve plate 2 to the open position; as Figure 8 As shown, when the compression structure 11 begins to reverse (i.e., the crankshaft drives the compression structure 11 to rotate in the second direction, during which the transmission structure 4, under the action of inertia, comes into contact with the second limiting protrusion group away from the second direction), at this time, the transmission structure 4 has not yet passed the check valve plate 2, so the check valve plate 2 is still in the open position; as Figure 9 As shown, when the compressor structure 11 is reversed, the transmission structure 4 interferes with the check valve plate 2 as it passes through it, thus pushing the check valve plate 2 to the closed position. For example, the first direction is clockwise and the second direction is counterclockwise.

[0040] In this application, the check valve plate 2 has a first mounting shaft 23, which cooperates with the first shaft hole 122 on the upper bracket and can rotate; that is, the mounting shaft is installed in the shaft hole; the mounting shaft and the check valve plate 2 are rotatably connected; the rear end of the check valve plate 2 has a protrusion forming a first actuating part 22, which can be actuated with the second actuating part 42 on the transmission structure 4.

[0041] The transmission structure 4 has a second mounting shaft 43 and a second actuating part 42. The second mounting shaft 43 is engaged with the second mounting hole on the crankshaft and can rotate freely. The second actuating part 42 can collide with the first actuating part 22 on the check valve plate 2 so that the transmission structure 4 can actuate the check valve plate 2.

[0042] The crankshaft has an annular groove, and there are several second mounting holes on the surface of the annular groove that mate with the transmission structure 4. There are also limit protrusions, i.e., second limit structures 41, in front of and behind the second mounting holes, which are used to limit the movement limit angle of the transmission structure 4.

[0043] The upper bracket has several first mounting holes that mate with the first mounting shaft 23 on the check valve plate 2;

[0044] The upper bracket has two limiting bosses, namely the first limiting structure 21, which are used to prevent the check valve plate 2 from rotating to the failure angle.

[0045] In this application, the number of check valve plates 2 is set to at least one, and the number of first mounting shafts 23 corresponds to the number of check valve plates 2; the number of transmission structures 4 is also set to at least one, and the number of second mounting shafts 43 corresponds to the number of transmission structures 4.

[0046] Operating status when vent 111 is an exhaust port:

[0047] After passing through the static plate exhaust port, the exhaust flows from the upper bracket through the channel on the upper bracket exhaust port into the housing.

[0048] When the compressor is running normally, the crankshaft rotates counterclockwise. Due to the force, the transmission structure 4 will tightly adhere to the first mounting shaft 23 on the crankshaft. At this time, the second actuating part 42 of the transmission structure 4 runs in a small circle, which is the operating area of ​​the second actuating part 42 of the normal operation transmission structure 4. When running in this operating area, the second actuating part 42 of the transmission structure 4 will collide with the first actuating part 22 of the check valve plate 2, moving the check valve plate 2 to the open position. At this time, the exhaust port is open, and the compressor can exhaust normally. When the check valve plate 2 is moved to the open position, the first actuating part 22 of the valve plate is out of the operating area of ​​the second actuating part 42 of the transmission structure 4 during normal operation and no longer interferes with the transmission structure 4. At this time, the first actuating part 22 of the check valve plate 2 is located in the operating area of ​​the stop-reverse transmission structure 4, that is, the transmission structure 4 will not continue to do work.

[0049] When the compressor stops, the compressed gas inside the pump expands due to the lack of driving force, causing the compressor crankshaft to reverse. When the crankshaft reverses, the transmission structure 4, under stress, comes into contact with the front limit boss of the transmission structure 4 on the crankshaft. The diameter of the annular running area of ​​the second actuating part 42 of the transmission structure 4 increases, becoming the running area of ​​the stop-reverse transmission structure 4. At this time, the first actuating part 22 of the check valve plate 2 is located at this position. The second actuating part 42 of the transmission structure 4 pushes the check valve plate 2 back to the closed state. When pushed to the closed state, the first actuating part 22 of the check valve plate 2 completely disengages from the running area of ​​the stop-reverse transmission structure 4, and the second actuating part 42 of the transmission structure 4 no longer contacts the check valve plate 2. When the exhaust port is closed, the gas inside the compressor pump can no longer expand, and the reverse rotation stops.

[0050] Appendix to this application Figure 6-9 In the image, the arrow indicates the direction of rotation of the crankshaft (moving scroll).

[0051] According to another aspect of this application, a compressor is provided, including a pump body assembly, which is the pump body assembly described above. The compressor is a scroll compressor.

[0052] According to another aspect of this application, an air conditioner is provided, including a compressor, wherein the compressor is the compressor described above.

[0053] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0054] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A pump body assembly used in a compressor, characterized in that, include: Compression assembly (1), the compression assembly (1) includes a compression structure (11) having a vent (111); Check valve plate (2); the check valve plate (2) opens the vent (111) as the open position; the check valve plate (2) closes the vent (111) as the closed position; the check valve plate (2) is movable on the surface of the compression assembly (1) so that the check valve plate (2) moves between the open position and the closed position; when the compressor is in working state, the compression structure (11) is in working state, and the check valve plate (2) is in the open position; when the compressor is in a stopped working state, the direction of movement of the compression structure (11) is opposite to the direction of movement of the compression structure (11) in working state, and the check valve plate (2) is in the closed position; the check valve plate (2) is in contact with the surface of the compression assembly (1) during the movement; The pump assembly further includes a movable structure (3), which includes a crankshaft connected to the compression structure (11). The crankshaft is used to drive the compression structure (11) to move in order to compress the gas. The pump assembly also includes a transmission structure (4); the transmission structure (4) is connected to the crankshaft; the transmission structure (4) and the check valve plate (2) are arranged in a radial direction corresponding to each other on the compression structure (11); when the rotation direction of the crankshaft is opposite to the rotation direction of the compression structure (11) in the working state, the crankshaft can drive the transmission structure (4) to move, thereby driving the check valve plate (2) to move to the closed position; The transmission structure (4) is strip-shaped. A second mounting shaft (43) is provided on the first end of the transmission structure (4). The crankshaft is provided with a second shaft hole. The second mounting shaft (43) is rotatably disposed in the second shaft hole. A second actuating part (42) is provided on the second end of the transmission structure (4). When the rotation direction of the crankshaft is opposite to the rotation direction of the compression structure (11) in the working state, the second actuating part (42) can move the check valve plate (2) to the closed position. When the rotation direction of the crankshaft is the same as the rotation direction of the compression structure (11) in the working state, the second actuating part (42) can move the check valve plate (2) to the open position.

2. The pump body assembly according to claim 1, characterized in that, The compression assembly (1) further includes a support structure (12), the compression structure (11) is disposed on the support structure (12); the support structure (12) is provided with a gas channel (121), the inlet end of the gas channel (121) is connected to the vent (111); the check valve plate (2) is disposed at the outlet end (1211) of the gas channel (121), so that the check valve plate (2) can open or close the gas channel (121) under the drive of the movable structure (3), thereby opening or closing the vent (111); and when the check valve plate (2) is in the open position, the check valve plate (2) is in contact with the surface of the support structure (12).

3. The pump body assembly according to claim 2, characterized in that, The check valve plate (2) is rotatably connected to the support structure (12) so that the check valve plate (2) can rotate between the open position and the closed position.

4. The pump body assembly according to claim 2, characterized in that, The support structure (12) is also provided with a first limiting structure (21), which is used to limit the movement of the check valve plate (2) so that the check valve plate (2) can only move within a first preset range.

5. The pump body assembly according to claim 2, characterized in that, The crankshaft is movably connected to the support structure (12).

6. The pump body assembly according to claim 1, characterized in that, The transmission structure (4) is a strip structure. The first end of the transmission structure (4) is rotatably connected to the crankshaft. The second end of the transmission structure (4) extends to the outer periphery of the crankshaft, and the second end of the transmission structure (4) is arranged in a position corresponding to the check valve plate (2) in the radial direction of the compression structure (11).

7. The pump body assembly according to claim 1, characterized in that, The crankshaft is also provided with a second limiting structure (41), which is used to limit the movement of the transmission structure (4) so ​​that the transmission structure (4) can only move within a second preset range.

8. A compressor, characterized in that, Includes a pump body assembly; the pump body assembly is the pump body assembly according to any one of claims 1-6.

9. An air conditioner, characterized in that, Includes a compressor; the compressor is the compressor described in claim 8.

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