Cylinder structure, compressor and air conditioner having the same

Abstract

The present application provides a cylinder structure, comprising: a cylinder body and an exhaust port, wherein the exhaust port is arranged on the inner wall of the cylinder body; and the size of the exhaust port is adjustable. According to the compressor of the present application and the air conditioner having the same, the size of the exhaust port is adjustable, so that the refrigerant in the clearance of the exhaust port is discharged, and the refrigerant is prevented from being repeatedly compressed to reduce the volumetric efficiency and energy efficiency of the compressor.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioners, and in particular relates to a cylinder structure, a compressor, and an air conditioner having the same. Background Art

[0002] At present, rotary compressors have become popular worldwide due to their simple structure and low cost, and are increasingly used in air conditioners, water heaters, refrigeration equipment and other fields.

[0003] However, with the continuous advancement of refrigeration technology, existing rotary compressors have reached very high standards. From the perspective of energy efficiency, it is becoming increasingly difficult to improve the efficiency of rotary compressors. The rotary compressors in the existing technology are all provided with cylinder exhaust bevel cuts. The cylinder exhaust bevel cuts are provided to increase the cross-sectional area of ​​the exhaust, which helps to smoothly discharge the refrigerant in the cylinder compression chamber and reduce the exhaust resistance loss. However, the existence of the cylinder exhaust bevel cut will result in the inability to discharge the refrigerant in the cylinder exhaust bevel cut mouth body, that is, the clearance volume, at the end of the exhaust process. When the exhaust is about to end, the high-pressure refrigerant in the clearance volume of the cylinder bevel cut is connected to the cylinder suction port and expands again to enter the next compression cycle, resulting in repeated compression of the refrigerant, thereby reducing the volumetric efficiency and energy efficiency of the compressor.

[0004] Therefore, how to provide a cylinder structure with an adjustable exhaust port size, a compressor, and an air conditioner having the same becomes a problem that those skilled in the art urgently need to solve. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present application is to provide a cylinder structure, a compressor and an air conditioner having the same, wherein the size of the exhaust port of the cylinder structure is adjustable.

[0006] In order to solve the above problems, the present application provides a cylinder structure, including: a cylinder body and an exhaust port, the exhaust port is arranged on the inner wall of the cylinder body; and the size of the exhaust port is adjustable.

[0007] Preferably, the cylinder structure further includes a blocking portion; the blocking portion blocks the exhaust port as the first position, and the blocking portion opens the exhaust port as the second position; the blocking portion is movable between the first position and the second position to adjust the size of the exhaust port.

[0008] Preferably, the cylinder body is further provided with an air intake port; when the air intake port is connected to the air exhaust port, the blocking portion is located at the first position.

[0009] Preferably, an adjusting groove is provided on the cylinder body; the adjusting groove is communicated with the exhaust port to form a movable channel; the blocking portion is movable in the movable channel to adjust the size of the exhaust port.

[0010] Preferably, the cylinder structure further includes a sliding vane groove and a sliding vane; the sliding vane groove is provided on the inner peripheral wall of the cylinder body; and the sliding vane is slidably disposed in the sliding vane groove.

[0011] Preferably, the regulating groove extends from the exhaust port toward the outer peripheral side of the cylinder body;

[0012] And / or, the cylinder body is further provided with a connecting groove; the connecting groove connects the sliding vane groove and the regulating groove;

[0013] And / or, the sliding piece is connected to the blocking portion to drive the blocking portion to move.

[0014] Preferably, a transmission part is provided in the communicating groove; the sliding piece is connected to the blocking part via the transmission part.

[0015] Preferably, the transmission part includes a rotating part and a rotating shaft; the rotating part is arranged on the rotating shaft and can rotate around the rotating shaft as the rotation center; the rotating part is against the blocking part; and the sliding plate can push the rotating part to rotate.

[0016] Preferably, the area where the sliding plate and the rotating part abut against each other is the abutting area; when the sliding plate slides in the abutting area, the sliding plate drives the rotating part to rotate, thereby driving the blocking part to move.

[0017] Preferably, the connecting groove is a strip-shaped groove, and the connecting groove extends in the direction of the sliding plate groove;

[0018] and / or, the slide slot is a strip-shaped slot;

[0019] and / or, the abutment area is located near the tail end of the slide slot;

[0020] And / or, a rotating hole is provided on the rotating portion; the rotating shaft is provided in the rotating hole; and / or, the rotating shaft is a pin.

[0021] Preferably, the rotating portion is hinged to the blocking portion.

[0022] Preferably, a stop platform is provided on the surface of the tail portion of the slide close to the communicating groove.

[0023] According to another aspect of the present application, a compressor is provided, comprising a cylinder structure, wherein the cylinder structure is the above-mentioned cylinder structure.

[0024] According to another aspect of the present application, an air conditioner is provided, comprising a compressor, which is the above-mentioned compressor.

[0025] The cylinder structure, compressor and air conditioner provided in the present application have an adjustable exhaust port size, so that the refrigerant in the gap of the exhaust port can be discharged, preventing the refrigerant from being repeatedly compressed and reducing the volumetric efficiency and energy efficiency of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic structural diagram of the cylinder structure when the crankshaft rotates 0° according to an embodiment of the present application;

[0027] Figure 2 This is a schematic structural diagram of the cylinder structure when the crankshaft rotation angle is β according to an embodiment of the present application;

[0028] Figure 3 This is a schematic diagram of the exploded structure of the cylinder structure of an embodiment of the present application;

[0029] Figure 4 This is a schematic structural diagram of the cylinder body according to an embodiment of the present application;

[0030] Figure 5 This is a schematic structural diagram of the cylinder structure when the crankshaft rotates 180° according to an embodiment of the present application;

[0031] Figure 6 This is a schematic structural diagram of a blocking portion according to an embodiment of the present application;

[0032] Figure 7 This is a schematic structural diagram of the rotating part of an embodiment of the present application;

[0033] Figure 8 This is a schematic structural diagram of a slide according to an embodiment of the present application;

[0034] Figure 9 This is a schematic structural diagram of the cylinder body according to an embodiment of the present application;

[0035] Figure 10 This is a graph showing the relationship between the crankshaft rotation angle and the displacement of the blocking portion according to an embodiment of the present application;

[0036] Figure 11 This is a schematic structural diagram of a pump assembly according to an embodiment of the present application;

[0037] Figure 12 This is a schematic structural diagram of a compressor according to an embodiment of the present application.

[0038] The reference numerals indicate:

[0039] 1. Cylinder body; 2. Exhaust port; 31. Adjustment groove; 32. Blocking part; 41. Vane groove; 42. Vane; 51. Connecting groove; 52. Rotating part; 53. Rotating shaft; 6. Roller; 7. Intake port; 8. Crankshaft. DETAILED DESCRIPTION

[0040] See also Figure 1As shown, according to an embodiment of the present application, a cylinder structure includes: a cylinder body 1 and an exhaust port 2, the exhaust port 2 is arranged on the inner wall of the cylinder body 1; and the size of the exhaust port 2 is adjustable, the size of the exhaust port 2 is adjustable, so that the refrigerant in the exhaust port 2 is discharged, preventing the refrigerant from being repeatedly compressed to reduce the volumetric efficiency and energy efficiency of the compressor, not only ensuring the size of the exhaust cross-sectional area and the smoothness of the exhaust, but also avoiding the influence of the clearance volume of the cylinder exhaust oblique cut, thereby improving the volumetric efficiency and energy efficiency of the compressor.

[0041] Furthermore, the cylinder structure also includes a blocking portion 32; the blocking portion 32 blocks the exhaust port 2 as the first position, and opens the exhaust port 2 as the second position; the blocking portion 32 is movable between the first position and the second position to adjust the size of the exhaust port 2.

[0042] Furthermore, an air intake port 7 is also provided on the cylinder body 1; when the air intake port 7 is connected to the air exhaust port 2, the blocking portion 32 is located in the first position, which solves the problem that the refrigerant in the air exhaust port 2 cannot be discharged during the exhaust process of the low back pressure and high back pressure rotor compressors, and the high-pressure refrigerant in the air exhaust port, i.e., the clearance volume, is connected to the air intake port 7 after the exhaust is completed, resulting in repeated compression of the refrigerant and reduced volumetric efficiency and energy efficiency of the compressor.

[0043] See also Figure 2-5 As shown, an adjusting groove 31 is opened on the cylinder body 1; the adjusting groove 31 is connected with the exhaust port 2 and forms a movable channel; the blocking portion 32 is movable in the movable channel to adjust the size of the exhaust port 2.

[0044] Furthermore, the cylinder structure further includes a slide 42 groove 41 and a slide 42 ; the slide 42 groove 41 is opened on the inner peripheral wall of the cylinder body 1 ; the slide 42 is slidably arranged in the slide 42 groove 41 .

[0045] Furthermore, the regulating groove 31 extends from the exhaust port 2 toward the outer peripheral side of the cylinder body 1;

[0046] And / or, the cylinder body 1 is further provided with a connecting groove 51; the connecting groove 51 connects the slide 42 groove 41 and the adjustment groove 31;

[0047] And / or, the sliding piece 42 is connected to the blocking portion 32 to drive the blocking portion 32 to move.

[0048] Furthermore, a transmission portion is provided in the communicating groove 51 ; the sliding piece 42 is connected to the blocking portion 32 via the transmission portion.

[0049] Furthermore, the transmission part includes a rotating part 52 and a rotating shaft 53; the rotating part 52 is arranged on the rotating shaft 53, and the rotating part 52 can rotate around the rotating shaft 53 as the rotation center; the rotating part 52 is against the blocking part 32; and the slide 42 can push the rotating part 52 to rotate.

[0050] Furthermore, the area where the sliding piece 42 and the rotating part 52 abut against each other is an abutting area. When the sliding piece 42 slides in the abutting area, the sliding piece 42 drives the rotating part 52 to rotate, thereby driving the blocking part 32 to move.

[0051] See also Figure 6-9 As shown, the connecting groove 51 is a strip-shaped groove, and the connecting groove 51 extends toward the direction of the sliding plate 42 and the groove 41;

[0052] and / or, the slot 41 of the slide 42 is a strip-shaped slot;

[0053] and / or, the abutment area is located near the tail end of the slot 41 of the slide 42;

[0054] And / or, a rotation hole is provided on the rotating portion 52; the rotation shaft 53 is provided in the rotation hole; and / or, the rotation shaft 53 is a pin.

[0055] For example, the rotation angles a, b, and c of the crankshaft 8 during one rotation satisfy the following relationship: a≥β, b>a, c≥360°-b; wherein β is the angle between the adjustment groove 31 and the sliding vane 42;.

[0056] The present invention provides a rolling rotor type compressor, which mainly comprises: a motor assembly, a housing assembly, and a pump assembly. Figure 11 and Figure 12 As shown, the motor assembly consists of the motor stator and rotor, the housing assembly mainly consists of the upper cover, housing, lower cover, exhaust pipe, intake pipe, terminal, and bolts, and the pump body assembly mainly consists of the crankshaft, upper flange, cylinder, lower flange, lower flange cover, roller, rotating portion 52, blocking portion 52, valve plate, and slide 42. The variable volume structure of the cylinder exhaust port 2 is composed of the crankshaft 8, cylinder, roller 6, slide 42, blocking portion, rotating portion 52, and pins. The displacement of the slide 42 can be changed within a certain range by the pressure difference between the front and rear ends of the blocking portion 52 and the action of the rotating portion 52, which causes the displacement of the blocking portion 52 to change accordingly.

[0057] The operating principle of the compressor in this embodiment is as follows: the low-temperature and low-pressure refrigerant from the evaporator enters the shell through the shell suction pipe, and then enters the cylinder through the upper cylinder suction pipe and the upper flange suction port 7 of the shell. Driven by the motor rotor, the crankshaft 8 rotates synchronously, and the roller 6 on the eccentric part of the crankshaft 8 also rotates accordingly. Figure 4 As shown, the inner wall of the cylinder body 1 and the outer wall of the roller 6 form a compression chamber. Under the action of the slide 42, the compression chamber is divided into a compression chamber, i.e., a high-pressure chamber, and an intake chamber, i.e., a low-pressure chamber. The gas sucked into the low-pressure chamber is compressed to high temperature and high pressure and then discharged into the lower flange cavity, and then enters the condenser through the exhaust port of the lower flange, thus completing the entire refrigeration cycle in the refrigeration system.

[0058] See also Figure 1As shown, the cylinder vane groove is at 0°, the crankshaft 8 rotates in the positive direction, the distance between the head of the blocking portion 32 and the cylinder inner circle is H, with the maximum value of H being h. The angle between the side of the adjustment groove 31 and the vane 42 is β. As the pump crankshaft 8 rotates, the roller 6 moves, and the vane 42 moves accordingly. The pressure difference between the vane 42 and the head and tail of the blocking portion 32 causes the blocking portion 32 to reciprocate.

[0059] Figure 1 The figure shows the starting position of the crankshaft 8. Assume that the rotation angle of the crankshaft 8 is θ, that is, the rotation angle of the crankshaft 8 is θ equal to 0°. Figure 10 As shown, the specific process is as follows:

[0060] When 0°<θ≤a, the slide 42 acts on the rotating part 52, so that the head of the blocking part 32 coincides with the inner circle of the cylinder body 1. At this time, H=0mm, the exhaust port volume of the cylinder body 1 is minimum, and the air intake port 7 of the cylinder body 1 is connected to the exhaust port.

[0061] When a<θ≤b, the slide 42 moves toward the center of the cylinder body 1, the compression chamber pressure of the cylinder body 1 is greater than the pressure in the shell, the blocking portion 32 moves away from the inner circle of the cylinder body 1, and H gradually increases to h, that is, the exhaust port volume of the cylinder body 1 gradually increases to the maximum;

[0062] When b<θ≤c, since the pressure in the compression chamber of the cylinder body 1 is greater than the pressure in the shell, H=h, that is, the volume of the exhaust port of the cylinder body 1 remains at the maximum;

[0063] When c<θ≤360°-a, the sliding plate 42 abuts against the rotating portion 52, causing the rotating portion 52 to rotate and drive the blocking portion 32 to move toward the inner circle of the cylinder body 1, and H gradually decreases from h to 0, that is, the volume of the exhaust port of the cylinder body 1 decreases from the maximum to the minimum. At this time, the air intake port 7 and the exhaust port of the cylinder body 1 are not connected;

[0064] When 360°-a<θ≤360°, since the slide 42 is always against the rotating part 52, H=0 remains unchanged, that is, the exhaust port volume of the cylinder body 1 remains minimum, and the air intake port 7 of the cylinder body 1 is connected to the exhaust port.

[0065] The relationship between these angles is: a ≥ β, b > a, c ≥ 360° - b. The clearance volume of exhaust port 2 on cylinder body 1 changes with each cycle of crankshaft 8. When the clearance volume of exhaust port 2 is connected to intake port 7, the clearance volume of exhaust port 2 is minimum. When the clearance volume of exhaust port 2 is not connected to intake port 7, the clearance volume of exhaust port 2 remains at maximum, or decreases from maximum to minimum.

[0066] Furthermore, the rotating portion 52 is hinged to the blocking portion 32 .

[0067] See also Figure 8 As shown, a stop platform is provided on the surface of the tail of the slide 42 near the connecting groove 51, and the stop platform is used to move the rotating part 51 so that one end of the rotating part 52 moves toward the inner circle direction of the cylinder body 1, and at the same time the other end of the rotating part 52 moves toward the outer circle direction of the cylinder body 1, thereby driving the blocking part 32 to move toward the outer peripheral side of the cylinder body 1 to enlarge the exhaust port 2.

[0068] The rotating portion 52 is hinged to the blocking portion 32 via a hinge structure, and the displacement H of the blocking portion 32 changes with the displacement of the sliding plate 42 .

[0069] When the rotation angle θ of the crankshaft 8 increases from a to 180°, the distance that the slide 42 extends out of the slide slot 41 increases to the maximum. At this time, under the action of the stopper of the slide 42, the displacement H of the blocking portion increases from 0 to the maximum h.

[0070] When c<θ≤360°-a, the sliding plate 42 abuts against the rotating portion 52, causing the rotating portion 52 to rotate and drive the blocking portion 32 to move toward the inner circle of the cylinder body 1. H gradually decreases from h to 0, that is, the volume of the exhaust port of the cylinder body 1 decreases from the maximum to the minimum. At this time, the air intake port 7 is not connected to the exhaust port 2.

[0071] When 360°-a<θ≤360°, since the slide 42 always contacts the rotating portion 52, H=0 remains unchanged, that is, the volume of the exhaust port 2 remains minimum. At this time, the air intake port 7 of the cylinder body 1 is connected to the exhaust port 2.

[0072] See also Figure 12 As shown, according to an embodiment of the present application, a compressor includes a cylinder structure, and the cylinder structure is the above-mentioned cylinder structure.

[0073] According to an embodiment of the present application, an air conditioner includes a compressor, which is the above-mentioned compressor.

[0074] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0075] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A cylinder structure, characterized in that: include: A cylinder body (1); an exhaust port (2), the exhaust port (2) being arranged on the inner wall of the cylinder body (1); and the size of the exhaust port (2) being adjustable; the cylinder structure further comprising a blocking portion (32); the blocking portion (32) blocking the exhaust port (2) being a first position, and the blocking portion (32) opening the exhaust port (2) being a second position; the blocking portion (32) being movable between the first position and the second position to adjust the size of the exhaust port (2) The cylinder body (1) is provided with an adjusting groove (31); the adjusting groove (31) is communicated with the exhaust port (2) to form a movable channel; the blocking portion (32) is movable in the movable channel to adjust the size of the exhaust port (2); the cylinder structure further comprises a sliding vane groove (41) and a sliding vane (42); the sliding vane groove (41) is provided on the inner peripheral wall of the cylinder body (1); the sliding vane (42) is slidably arranged in the sliding vane groove (41); The regulating groove (31) extends from the exhaust port (2) toward the outer peripheral side of the cylinder body (1), and the sliding plate (42) is connected to the blocking portion (32) to drive the blocking portion (32) to move.

2. The cylinder structure according to claim 1, characterized in that: The cylinder body (1) is also provided with an air intake port (7); when the air intake port (7) is connected to the air exhaust port (2), the blocking portion (32) is located at the first position.

3. The cylinder structure according to claim 1, characterized in that: The cylinder body (1) is also provided with a connecting groove (51); the connecting groove (51) connects the sliding plate groove (41) and the regulating groove (31).

4. The cylinder structure according to claim 3, characterized in that: A transmission part is arranged in the communicating groove (51); the sliding sheet (42) is connected to the blocking part (32) via the transmission part.

5. The cylinder structure according to claim 4, characterized in that: The transmission part comprises a rotating part (52) and a rotating shaft (53); the rotating part (52) is rotatably arranged on the rotating shaft (53); the rotating part (52) abuts against the blocking part (32); and the sliding sheet (42) can push the rotating part (52) to rotate.

6. The cylinder structure according to claim 5, characterized in that: The sliding plate (42) and the rotating part (52) abut against each other to form an abutting area. When the sliding plate (42) slides in the abutting area, the sliding plate (42) drives the rotating part (52) to rotate, thereby driving the blocking part (32) to move.

7. The cylinder structure according to claim 6, characterized in that: The connecting groove (51) is a strip-shaped groove, and the connecting groove (51) extends in the direction of the sliding plate groove (41); And / or, the slide groove (41) is a strip groove; And / or, the abutment area is located near the tail of the slide slot (41); And / or, a rotating hole is provided on the rotating portion (52); the rotating shaft (53) is arranged in the rotating hole; and / or, the rotating shaft (53) is a pin.

8. The cylinder structure according to claim 6, characterized in that: The rotating portion (52) is hinged to the blocking portion (32).

9. The cylinder structure according to claim 8, characterized in that: A stop platform is provided on the surface of the tail of the sliding sheet (42) close to the connecting groove (51).

10. A compressor, comprising a cylinder structure, characterized in that: The cylinder structure is the cylinder structure according to any one of claims 1 to 9.

11. An air conditioner, comprising a compressor, characterized in that: The compressor is the compressor according to claim 10.

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