Compressor exhaust port opening and closing mechanism, compressor and air conditioning device

Abstract

The present invention relates to a compressor exhaust port opening and closing mechanism, a compressor and an air conditioning device. It includes a fixed member and a movable member; an exhaust port is provided on the fixed member; the movable member can move along a first direction and a second direction, and the movable member has a first end and a second end; the first end and the second end of the movable member communicate with the exhaust high-pressure chamber of the compressor; the movable member has an inner cavity, and the first side and the second side of the inner cavity communicate with the compressed gas inside the compressor; when the pressure in the exhaust high-pressure chamber of the compressor is less than the pressure of the compressed gas inside the compressor, the movable member moves along the first direction and increases the opening degree of the exhaust port during the movement; when the pressure in the exhaust high-pressure chamber of the compressor is greater than the pressure of the compressed gas inside the compressor, the movable member moves along the second direction and reduces the opening degree of the exhaust port to close the exhaust port during the movement.

Description

Technical Field

[0001] The present invention relates to the field of compressors and air conditioners, and particularly to a compressor exhaust port opening and closing mechanism, a compressor and an air conditioning device. Background Art

[0002] Compressors are widely used in fields such as air conditioning devices. The scroll compressor is an important type of compressor. The internal pressure ratio of the scroll compressor is a fixed value and does not change with the operating conditions. However, for an air conditioning device, during its operation, the evaporation pressure and the condensation pressure change continuously with the working environment temperature. That is, the external pressure ratio of the compressor is a floating value. For a compressor, when its internal pressure ratio is the same as the external pressure ratio, the system requirements of the compressor and the air conditioning device reach the best matching state, and no additional power consumption loss will occur. When the internal pressure ratio of the compressor is greater than the external pressure ratio, over-compression will occur. At the exhaust port of the compressor, the high-pressure gas undergoes isochoric expansion, resulting in additional power loss. At the same time, over-compression will cause the motor load to increase abnormally instantaneously, leading to large current breakdown of the enameled wire, there are reliability problems such as abnormal burning, and the force on the scroll disk increases, resulting in fragmentation. Summary of the Invention

[0003] The present invention provides a compressor exhaust port opening and closing mechanism, a compressor and an air conditioning device to solve at least one of the various technical problems caused by the inconsistency between the internal pressure ratio and the external pressure ratio of the compressor in the above-mentioned prior art.

[0004] The compressor exhaust port opening and closing mechanism provided by the present invention includes a fixed member and a movable member; an exhaust port is provided on the fixed member; the movable member is arranged on the fixed member, and the movable member can move relative to the fixed member along a first direction and a second direction. When the movable member moves along the first direction, the opening degree of the exhaust port can be increased, and when it moves along the second direction, the opening degree of the exhaust port can be decreased; the movable member has a first end facing the first direction and a second end facing the second direction. The first end has a first end face shape, and the second end has a second end face shape. The first end and the second end of the movable member are communicated with the exhaust high-pressure chamber of the compressor; the movable member has an inner cavity, and the inner cavity is communicated with the compressed gas in the compressor. The first side of the inner cavity facing the first direction and the second side facing the second direction, the first side has a first side face shape, and the second side has a second side face shape; the first end face shape, the second end face shape, and the first side face shape and the second side face shape are configured such that when the pressure in the exhaust high-pressure chamber of the compressor is the same as the pressure of the compressed gas in the compressor, the movable member is in force balance and remains stationary; when the pressure in the exhaust high-pressure chamber of the compressor is less than the pressure of the compressed gas in the compressor, the movable member moves along the first direction and increases the opening degree of the exhaust port during the movement; when the pressure in the exhaust high-pressure chamber of the compressor is greater than the pressure of the compressed gas in the compressor, the movable member moves along the second direction and reduces the opening degree of the exhaust port to close the exhaust port during the movement.

[0005] Wherein, the number of exhaust ports on the fixed member is multiple; during the movement of the movable member, the number of opened and closed exhaust ports is changed, and the area of a single exhaust port covered and blocked by the movable member is changed to adjust the opening degree of the exhaust port.

[0006] Wherein, the movable member includes a shaft portion and a fan-shaped portion connected together. The shaft portion is rotatably connected to the fixed member, and the fan surfaces on both sides of the fan-shaped portion are the first end and the second end respectively.

[0007] Wherein, a protruding stop portion is provided on the fixed member, and the stop portion is arranged on the rotation path of the movable member; when the movable member rotates to abut against the stop portion, the fan-shaped portion of the movable member completely blocks the exhaust port.

[0008] Wherein, the end face shape of the first end on the fan-shaped portion is perpendicular to the rotation plane of the fan-shaped portion, and the end face shape of the second end on the fan-shaped portion is inclined with respect to the rotation plane of the fan-shaped portion.

[0009] Wherein, the shapes and sizes of the first side and the second side of the inner cavity are different.

[0010] Wherein, the movable member and the fixed member are connected by a circlip.

[0011] The compressor provided by the present invention includes a compressor body and the above-mentioned compressor exhaust port opening and closing mechanism, and the compressor exhaust port opening and closing mechanism is installed on the compressor body.

[0012] Among them, the fixed part in the compressor exhaust port opening and closing mechanism is fixed to the compressor body by screwing through a flange.

[0013] The air conditioner provided by the present invention includes the above-mentioned compressor.

[0014] The above-mentioned compressor exhaust port opening and closing mechanism, compressor and air conditioner provided by the present invention have the following advantages compared with the prior art:

[0015] The compressor exhaust port opening and closing mechanism provided by the present invention

[0016] The compressor provided by the present invention includes the above-mentioned compressor exhaust port opening and closing mechanism and has the same beneficial effects as the above-mentioned compressor exhaust port opening and closing mechanism, which will not be elaborated here.

[0017] The air conditioner provided by the present invention includes the above-mentioned compressor and has the same beneficial effects as the above-mentioned compressor, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of the compressor exhaust port opening and closing mechanism in the embodiment of the present invention;

[0021] Figure 2 is Figure 1 a schematic structural diagram of the shown compressor exhaust port opening and closing mechanism in another perspective direction;

[0022] Figure 3 is a schematic diagram of the force analysis of the movable part;

[0023] Figure 4 is a schematic structural diagram of the movable part;

[0024] Figure 5 is a schematic structural diagram of the fixed part;

[0025] Figure 6 A cross-sectional schematic view of the compressor in the embodiment of the present invention;

[0026] Figure 7 is Figure 6 a three-dimensional schematic view of the compressor shown;

[0027] Figure 8 a schematic view of the moving disk of the compressor rotating to open the first exhaust port;

[0028] Figure 9 a schematic view of the moving disk of the compressor continuing to rotate to open three exhaust ports;

[0029] Figure 10 a schematic view of the moving disk of the compressor continuing to rotate to open all exhaust ports.

[0030] In the figure:

[0031] 1 - stationary disk; 2 - moving disk; 3 - bracket;

[0032] 10 - fixing part; 20 - moving part;

[0033] 11 - exhaust port; 12 - stop part; 13 - flange;

[0034] 21 - first end; 22 - second end; 23 - inner cavity; 24 - first side; 25 - second side; 26 - snap ring;

[0035] 201 - shaft part; 202 - fan-shaped part. Specific embodiments

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0037] The following describes the embodiments of the compressor exhaust port opening and closing mechanism, compressor and air conditioning device provided by the present invention in conjunction with the accompanying drawings.

[0038] In an embodiment of the compressor exhaust port opening and closing mechanism provided by the present invention, as Figures 1 to 6As shown in the figure, the compressor exhaust port opening and closing mechanism includes a fixed member 10 and a movable member 20. An exhaust port 11 is provided on the fixed member 10. The movable member 20 is arranged on the fixed member 10 and can move relative to the fixed member 10 in a first direction and a second direction. When the movable member 20 moves in the first direction, it can increase the opening degree of the exhaust port 11, and when it moves in the second direction, it can reduce the opening degree of the exhaust port 11 until the exhaust port 11 is completely closed. The movable member 20 has a first end 21 facing the first direction and a second end 22 facing the second direction. The first end 21 of the movable member 20 has a first end face shape, and the second end 22 of the movable member 20 has a second end face shape.

[0039] In an embodiment of the present invention, the first end 21 and the second end 22 of the movable member 20 are communicated with the exhaust high-pressure chamber of the compressor. The exhaust high-pressure chamber of the compressor can actually represent the external pressure ratio of the compressor. The first end face shape and the second end face shape of the movable member 20 can be set to different shapes, such as having different inclined slopes, having different radial angles, etc., so that the acting forces of the exhaust high-pressure chamber of the compressor on the first end 21 and the second end 22 are different.

[0040] In this embodiment, when the external pressure ratio of the compressor is large, the pressures received by the first end 21 and the second end 22 of the movable member 20 are greater through the exhaust high-pressure chamber of the compressor; when the external pressure ratio of the compressor is small, the pressures received by the first end 21 and the second end 22 of the movable member 20 are smaller.

[0041] At the same time, since the first end face shape and the second end face shape of the movable member 20 are set to different shapes, different in one or more parameters representing shapes, when the exhaust high-pressure chamber of the compressor is at a certain pressure value, the pressures received by the first end 21 and the second end 22 will be inconsistent, and there will be a pressure difference. Assuming that the pressure received by the first end 21 is large and the pressure received by the second end 22 is small, due to the existence of the pressure difference, without considering other factors (mainly not considering the influence of the compressed gas in the compressor passing through the inner cavity 23 on the movable member 20), the movable member 20 will move in the direction of the second direction; conversely, when the pressure received by the first end 21 is small and the pressure received by the second end 22 is large, due to the existence of the pressure difference, the movable member 20 will move in the direction of the first direction.

[0042] Moreover, it can be understood that the greater the pressure in the exhaust high-pressure chamber of the compressor, the greater the pressure difference between the first end 21 and the second end 22, and the faster the movable member 20 will move in the first direction or the second direction.

[0043] In one embodiment of the present invention, the movable member 20 has an inner cavity 23 which communicates with the compressed gas inside the compressor. The compressed gas inside the compressor can actually represent the internal pressure ratio of the compressor, and generally, it is equivalent to the pressure at the exhaust port of the compressor. In actual operation, the inner cavity 23 can be communicated with the exhaust port 11 of the compressor. The inner cavity 23 has a first side 24 facing the first direction and a second side 25 facing the second direction. The first side 24 has a first side surface shape, and the second side 25 has a second side surface shape. The first side surface shape and the second side surface shape can be set to be different in one or more parameters representing the shape, so that the acting forces of the compressed gas inside the compressor on the first side 24 and the second side 25 are different.

[0044] In this embodiment, when the internal pressure ratio of the compressor is large, the pressures received by the first side 24 and the second side 25 of the movable member 20 are greater through the exhaust port 11 of the compressor and the like; when the internal pressure ratio of the compressor is small, the pressures received by the first side 24 and the second side 25 of the movable member 20 are smaller.

[0045] Meanwhile, since the first side surface shape and the second side surface shape of the inner cavity 23 are different in one or more parameters, when the compressed gas inside the compressor is at a certain pressure value, the pressures received by the first side 24 and the second side 25 will be inconsistent, and there will be a pressure difference. Assuming that the pressure received by the first side 24 is large and the pressure received by the second side 25 is small, due to the existence of the pressure difference, without considering other factors (mainly not considering the influence of the high-pressure exhaust cavity of the compressor on the first end 21 and the second end 22 described above), the movable member 20 will move in the first direction; conversely, when the pressure received by the first side 24 is small and the pressure received by the second side 25 is large, due to the existence of the pressure difference, the movable member 20 will move in the second direction.

[0046] Moreover, it can be understood that when the pressure of the compressed gas inside the compressor is greater, the pressure difference between the first side 24 and the second side 25 is greater, and the moving speed of the movable member 20 in the first direction or the second direction is faster.

[0047] Taking into account the forces acting on the movable member 20 comprehensively, the pressure difference between the forces exerted by the high-pressure exhaust chamber of the compressor on the first end 21 and the second end 22 is F1 (which can be expressed as F1 = F11 - F12, where F11 is the force exerted by the high-pressure exhaust chamber of the compressor on the first end 21, and F12 is the force exerted by the high-pressure exhaust chamber of the compressor on the second end 22). The pressure difference between the forces exerted by the compressed gas in the compressor on the first side 24 and the second side 25 of the inner cavity 23 is F2 (which can be expressed as F2 = F21 - F22, where F21 is the force exerted by the compressed gas in the compressor on the first side 24, and F22 is the force exerted by the compressed gas in the compressor on the second side 25). The above F1 and F2 are positive and are vectors. If F1 > F2, the movable member 20 finally moves in the direction of F1; if F1 < F2, the movable member 20 finally moves in the direction of F2; if F1 = F2, the movable member 20 is in a force balance state and does not move. When the shapes of the first end face, the second end face, the first side face, and the second side face are inclined, the movable member 20 will also be subjected to a component force upward or downward, such as Figure 3 the F in 上 and F 下 , for this part of the acting force, it has no obvious association with the present invention and will not be elaborated herein.

[0048] In an embodiment of the present invention, the shapes of the first end face, the second end face, the first side face, and the second side face are configured such that when the pressure in the high-pressure exhaust chamber of the compressor is the same as the pressure of the compressed gas in the compressor, the movable member 20 is in force balance and remains stationary; when the pressure in the high-pressure exhaust chamber of the compressor is less than the pressure of the compressed gas in the compressor, the movable member 20 moves in the first direction and increases the opening degree of the exhaust port 11 during the movement; when the pressure in the high-pressure exhaust chamber of the compressor is greater than the pressure of the compressed gas in the compressor, the movable member 20 moves in the second direction and reduces the opening degree of the exhaust port 11 to close the exhaust port 11 during the movement.

[0049] It can be understood that in the embodiments of the present invention, parameters of the shapes of the first end face and the second end face, such as size, inclination, and cross-sectional shape, can be set to control the pressure difference between the first end 21 and the second end 22 (when the pressure in the high-pressure exhaust chamber is a certain value). And parameters of the shapes of the first side face and the second side face, such as size, inclination, and cross-sectional shape, can be set to control the pressure difference between the first side 24 and the second side 25 (when the pressure of the compressed gas in the compressor is a certain value).

[0050] Moreover, by setting the parameters of the first end face shape, the second end face shape, the first side face shape, and the second side face shape as described above, when the internal pressure ratio and the external pressure ratio of the compressor are equal, the pressure difference between the first end 21 and the second end 22 is equal to the pressure difference between the first side 24 and the second side 25, so that the moving member 20 is in a balanced stress state and does not move. Under this setting, if the internal pressure ratio of the compressor is greater than the external pressure ratio, the moving member 20 will move in the direction of F2 as described above. If the external pressure ratio of the compressor is greater than the internal pressure ratio, the moving member 20 will move in the direction of F1 as described above.

[0051] Under the above setting, further set the position of the moving member 20 relative to the exhaust port 11 so that when the moving member 20 moves in the direction of F1 (indicating that the external pressure ratio of the compressor is greater than the internal pressure ratio), the moving member 20 gradually reduces the opening degree of the exhaust port 11 to completely close the exhaust port 11 during the movement. In this way, the exhaust of the compressor can be reduced, which is beneficial to reducing the difference between the internal pressure ratio and the external pressure ratio of the compressor and can balance the internal pressure ratio and the external pressure ratio of the compressor faster. Also, when the moving member moves in the direction of F2 (indicating that the internal pressure ratio of the compressor is greater than the external pressure ratio), the moving member 20 gradually increases the opening degree of the exhaust port 11 to completely open the exhaust port 11 during the movement. In this way, the exhaust of the compressor can be accelerated, which is beneficial to reducing the difference between the external pressure ratio and the internal pressure ratio of the compressor and can balance the internal pressure ratio and the external pressure ratio of the compressor faster.

[0052] Therefore, according to the above, in the embodiment of the present invention, when the internal pressure ratio of the compressor is greater than the external pressure ratio, the moving member can increase the opening degree of the exhaust port under the control of the pressure difference, so that the exhaust speed of the compressor to the outside is accelerated, which helps to reduce the difference between the internal pressure ratio and the external pressure ratio of the compressor and makes the internal pressure ratio and the external pressure ratio of the compressor tend to be balanced faster. When the external pressure ratio of the compressor is greater than the internal pressure ratio, the moving member can reduce the opening degree of the exhaust port under the control of the pressure difference, so that the exhaust speed of the compressor to the outside is reduced, which helps to reduce the difference between the internal pressure ratio and the external pressure ratio of the compressor and makes the internal pressure ratio and the external pressure ratio of the compressor tend to be balanced faster. And when the external pressure ratio and the internal pressure ratio of the compressor are the same, the moving member is in a balanced stress state and does not move, thus maintaining the balanced stress state of the external pressure ratio and the internal pressure ratio of the compressor.

[0053] In an embodiment of the present invention, as Figure 2 and Figure 5 shown, the number of exhaust ports 11 on the fixing member 10 is multiple; the moving member 20 changes the number of open and closed exhaust ports 11 during the movement, and changes the area of a single exhaust port 11 covered and blocked by the moving member 20 to adjust the opening degree of the exhaust port 11. In Figure 2 and Figure 5In the shown structure, the number of exhaust ports 11 is five. In this embodiment, when the internal pressure ratio of the compressor is greater than the external pressure ratio, the moving member 20 can cover fewer exhaust ports 11 during the movement, thereby increasing the overall opening degree of all the exhaust ports 11 of the compressor; when the external pressure ratio of the compressor is greater than the internal pressure ratio, the moving member 20 can cover more exhaust ports 11 during the movement, thereby reducing the overall opening degree of all the exhaust ports 11 of the compressor. Of course, in the above process, the overall opening degree can also be reduced by the moving member 20 covering a larger area of each exhaust port 11, and the overall opening degree can be increased by the moving member 20 covering a smaller area of each exhaust port 11.

[0054] In an embodiment of the present invention, the moving member 20 includes a shaft portion 201 and a sector portion 202 connected together. The shaft portion 201 is rotatably connected to the fixing member 10. The two fan surfaces on both sides of the sector portion 202 are respectively a first end 21 and a second end 22. As Figure 2 and Figure 5 shown, a cylindrical protrusion is provided on the fixing portion 10, and a ring hole corresponding to the cylindrical protrusion is provided on the shaft portion 201. The ring hole can be nested on the cylindrical protrusion. When an external force acts on the first end 21 and the second end 22, the sector portion 202 will drive the shaft portion 201 to rotate around the cylindrical protrusion. In this embodiment, a plurality of exhaust ports 11 on the fixing member 10 are arranged in a sector shape or a circular ring shape, and when the sector portion 202 rotates, the sector portion can sequentially cover the plurality of exhaust ports 11.

[0055] In an embodiment of the present invention, a protruding stop portion 12 is provided on the fixing member 10, and the stop portion 12 is arranged on the rotation path of the moving member 20. When the moving member 20 rotates to abut against the stop portion 12, the sector portion 202 of the moving member 20 completely blocks the exhaust port 11. In this embodiment, by providing the stop portion 12, the continuous movement of the moving member 20 can be restricted, so that the moving member 20 is maintained in a state where all the exhaust ports 11 are completely blocked and the opening degree of the exhaust ports 11 is completely closed.

[0056] In an embodiment of the present invention, in the case where the moving member 20 includes a shaft portion 201 and a sector portion 202, the parameters of the first end 21 and the second end 22 can be configured, for example, by setting the end face shape of the first end 21 on the sector portion 202 to be perpendicular to the rotation plane of the sector portion 202, and setting the end face shape of the second end 22 on the sector portion 202 to be inclined with respect to the rotation plane of the sector portion 202.

[0057] In one embodiment of the present invention, for the configuration of the parameters of the first side 24 and the second side 25 of the inner cavity 23, the shapes and sizes of the first side 24 and the second side 25 can be set to be different. For example, when the shape of the first side 24 is a square, the shape of the second side 25 can be a rectangle, and the area of the rectangle is not equal to the area of the above-mentioned square.

[0058] In one embodiment of the present invention, the movable member 20 and the fixed member 10 are connected by a snap ring 26. Through the snap ring 26, the movable member 20 can be rotatably connected to the fixed member 10.

[0059] In one embodiment of the compressor of the present invention, the compressor includes a compressor body and the above-mentioned compressor exhaust port opening and closing mechanism, and the compressor exhaust port opening and closing mechanism is installed on the compressor body.

[0060] As Figure 6 and Figure 7 shown, the compressor body may specifically include structures such as a static disk 1, a dynamic disk 2, and a bracket 3. When the dynamic disk 2 of the compressor rotates, it can drive the movable member 20 to move, open or close the exhaust port 11, so as to adjust the overall opening degree of the exhaust port 11.

[0061] Specifically, the fixed member 10 in the compressor exhaust port opening and closing mechanism is fixedly connected to the compressor body by screwing through a flange 13.

[0062] In one embodiment of the air-conditioning device of the present invention, the air-conditioning device includes the above-mentioned compressor.

[0063] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0064] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A compressor exhaust port opening and closing mechanism, characterized in that, The compressor exhaust port opening and closing mechanism includes a fixed part and a movable part; an exhaust port is provided on the fixed part; the movable part is arranged on the fixed part, and the movable part can move relative to the fixed part along a first direction and a second direction. When the movable part moves along the first direction, the opening degree of the exhaust port can be increased, and when it moves along the second direction, the opening degree of the exhaust port can be decreased; The movable part has a first end facing the first direction and a second end facing the second direction. The first end has a first end face shape, and the second end has a second end face shape. The first end and the second end of the movable part are communicated with the exhaust high-pressure chamber of the compressor; The movable part has an inner cavity, and the inner cavity is communicated with the compressed gas in the compressor. And the first side of the inner cavity facing the first direction and the second side facing the second direction. The first side has a first side face shape, and the second side has a second side face shape; The first end face shape, the second end face shape, the first side face shape and the second side face shape are configured such that when the pressure in the exhaust high-pressure chamber of the compressor is the same as the pressure of the compressed gas in the compressor, the movable part is in force balance and remains stationary; when the pressure in the exhaust high-pressure chamber of the compressor is less than the pressure of the compressed gas in the compressor, the movable part moves along the first direction and increases the opening degree of the exhaust port during the movement; When the pressure in the exhaust high-pressure chamber of the compressor is greater than the pressure of the compressed gas in the compressor, the movable part moves along the second direction and reduces the opening degree of the exhaust port to close the exhaust port during the movement.

2. The compressor exhaust port opening and closing mechanism according to claim 1, characterized in that, The number of exhaust ports on the fixed part is multiple; during the movement of the movable part, the number of opened and closed exhaust ports is changed, and the area of a single exhaust port covered and blocked by the movable part is changed to adjust the opening degree of the exhaust port.

3. The compressor exhaust port opening and closing mechanism according to claim 1, characterized in that, The movable part includes a shaft part and a fan-shaped part connected together. The shaft part is rotatably connected to the fixed part, and the fan surfaces on both sides of the fan-shaped part are the first end and the second end respectively.

4. The compressor exhaust port opening and closing mechanism according to claim 3, characterized in that, A protruding stop part is provided on the fixed part, and the stop part is arranged on the rotation path of the movable part; when the movable part rotates to abut against the stop part, the fan-shaped part of the movable part completely blocks the exhaust port.

5. The compressor exhaust port opening and closing mechanism according to claim 3, characterized in that, The end face shape of the first end on the fan-shaped part is perpendicular to the rotation plane of the fan-shaped part, and the end face shape of the second end on the fan-shaped part is inclined with respect to the rotation plane of the fan-shaped part.

6. The compressor exhaust port opening and closing mechanism according to claim 1 or 3, characterized in that, The shapes and sizes of the first side and the second side of the inner cavity are different.

7. The compressor exhaust port opening and closing mechanism according to claim 3, characterized in that, The movable part and the fixed part are connected by a snap ring.

8. A compressor, characterized in that, The compressor includes a compressor body and the compressor exhaust port opening and closing mechanism according to any one of claims 1 to 7, and the compressor exhaust port opening and closing mechanism is installed on the compressor body.

9. The compressor according to claim 8, characterized in that, The fixed part in the compressor exhaust port opening and closing mechanism is fixed to the compressor body by screwing through a flange.

10. An air conditioning device, characterized in that, The air-conditioning device includes the compressor according to claim 8 or 9.

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