CN112211818B

CN112211818B - Rotary compressor and control method thereof

Info

Publication number: CN112211818B
Application number: CN201910630498.2A
Authority: CN
Inventors: 潘瑾; 王艳珍; 刘春慧
Original assignee: Shanghai Highly Electrical Appliances Co Ltd
Current assignee: Shanghai Highly Electrical Appliances Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2022-09-09
Anticipated expiration: 2039-07-12
Also published as: CN112211818A

Abstract

The invention discloses a rotary compressor and a control method thereof, wherein the rotary compressor comprises the following steps: a housing; a first cylinder and a second cylinder; a first blade; a second blade; the compressor is characterized in that the first air cylinder is provided with a first air suction channel and a second air suction channel, the first end of the first air suction channel is communicated with a liquid storage device outside the shell through a through hole arranged in the shell, the second end of the first air suction channel is connected with an inner cavity of the first air cylinder, the first end of the second air suction channel is communicated with the inner space of the shell, and the second end of the second air suction channel is connected with the inner cavity of the first air cylinder.

Description

Rotary compressor and control method thereof

Technical Field

The invention relates to the technology in the field of refrigeration, in particular to a rotary compressor and a control method thereof.

Background

In the modern society, the frequency of air conditioner use is more and more, and in order to improve quality of life, the air conditioner is also opened in transition seasons (spring, autumn), but indoor outer temperature difference is less after the air conditioner is used in the transition seasons, and the load of the air conditioner is less. In winter, the air conditioner is expected to blow hot air and can operate under an overlarge load. The air conditioner can give consideration to both quick heating in winter and extremely-small load operation in transition seasons, so that the compressor can give consideration to both, namely the capacity (volume flow) of the air conditioner compressor can be changed according to different loads. Fig. 1 is a schematic view of a conventional cylinder structure. The inner cavity of the cylinder 13 shown in fig. 1 is divided into an air suction cavity 137 ' and an air discharge cavity 138 ' by the vane 136 ' and the rotary piston 139 ', the air suction channel 131 ' is opened on the cylinder 13 ', when the crankshaft drives the rotary piston 139 ' to rotate, the refrigerant enters the air suction cavity 137 ' through the air suction channel 131 ' along the air suction direction Ps, and then is discharged from the air discharge cavity 138, and the discharged refrigerant is discharged along the air discharge direction Pd. The compressor having the cylinder shown in fig. 1 cannot realize that the capacity (volume flow rate) of the air conditioner compressor can be varied according to the load.

Disclosure of Invention

The invention aims to provide a rotary compressor and a control method thereof, wherein two air suction channels, namely a first air suction channel and a second air suction channel, are arranged in a cylinder, a sliding block in the cylinder controls the conduction of the first air suction channel and the second air suction channel in a sliding manner, the cylinder normally works when the first air suction channel is conducted, and the cylinder is filled with a high-pressure refrigerant to stop compressing the refrigerant when the second air suction channel is conducted, so that the switching of the capacity of the compressor is realized, and the requirements of different loads in different seasons are met.

According to an aspect of the present invention, there is provided a rotary compressor including:

a housing;

the first cylinder and the second cylinder are arranged in the shell and are separated by a middle plate;

the first blade is arranged in a first blade groove of the first cylinder, and the first end of the first blade groove is communicated with the inner cavity of the first cylinder;

the second blade is arranged in a second blade groove of the second cylinder, and the first end of the second blade groove is communicated with the inner cavity of the second cylinder;

the first cylinder is provided with a first air suction channel and a second air suction channel, the first end of the first air suction channel is communicated with a liquid storage device outside the shell through a through hole formed in the shell, the second end of the first air suction channel is connected with an inner cavity of the first cylinder, the first end of the second air suction channel is communicated with the inner space of the shell, and the second end of the second air suction channel is connected with the inner cavity of the first cylinder;

one of the first air suction channel and the second air suction channel is communicated, and the other air suction channel is closed;

the second cylinder is provided with a third air suction channel, the first end of the third air suction channel is communicated with the liquid storage device, and the second end of the third air suction channel is connected with the inner cavity of the second cylinder;

the wall of the first air cylinder is provided with a sliding block, and the sliding block slides between a first position and a second position;

when the sliding block is at the first position, the first air suction channel is communicated with an inner cavity of the first air cylinder;

and when the sliding block is at the second position, the second air suction channel is communicated with the inner cavity of the first air cylinder.

Preferably, a sliding groove having the first position and the second position is formed in a wall of the first cylinder, the sliding block is disposed in the sliding groove, a first side of the sliding groove is communicated with a second end of the first air suction channel and a second end of the second air suction channel, and a second side of the sliding groove is communicated with an inner side of the first cylinder.

Preferably, the slide block is provided with a first connecting air passage and a second connecting air passage, the first air cylinder is provided with a pressure control chamber, and the pressure control chamber is communicated with the second end of the first vane slot and the first side of the sliding slot;

when the sliding block is at the first position, the first air suction channel is communicated with the inner cavity of the first air cylinder through the first connecting air channel, and the second air suction channel is communicated with the pressure control chamber through the second connecting air channel;

when the sliding block is at the second position, the first air suction channel is communicated with the pressure control cavity through the second connecting air channel, and the second air suction channel is communicated with the inner cavity of the first air cylinder through the sliding groove.

Preferably, the sliding block is provided with a first surface opposite to the first side of the sliding chute and a second surface parallel to the first surface, the first end opening of the first connecting air channel is arranged on the first surface, and the second end opening of the first connecting air channel is arranged on the second surface;

the slider has one with first face vertically third face, the first end opening of second connection air flue set up in first face, the second end opening of first connection air flue set up in the third face.

Preferably, when the slider is located at the first position, the first end opening of the first connecting air passage is communicated with the second end of the first air suction passage, the second end opening of the first connecting air passage is connected with the inner cavity of the first air cylinder, the first end opening of the second connecting air passage is communicated with the second end opening of the second air suction passage, and the second end opening of the second connecting air passage is exposed out of the sliding groove and is communicated with the pressure control chamber through the sliding groove.

Preferably, when the slide block is located at the second position, the first end opening of the first connecting air channel is communicated with the second end of the first air suction channel and is communicated with the pressure control chamber.

Preferably, the air conditioner further comprises a three-way valve for making one of the first air suction passage and the second air suction passage open and the other air suction passage closed.

Preferably, a second end of the first air suction passage is communicated with a first port of the three-way valve, a second end of the second air suction passage is communicated with a second port of the three-way valve, and a third port of the three-way valve is communicated with an inner cavity of the first air cylinder.

Preferably, a stop groove is formed in one side of the first vane groove, and when the slider is located at the second position, the stop groove is communicated with the second air suction channel to lock the first vane.

Preferably, when the slide block is located at the first position, the stop groove is communicated with the first air suction channel.

Preferably, a pneumatic lock column is arranged on one side of the first blade, and when the sliding block is located at the second position, one end of the pneumatic lock column is abutted against the side face of the first blade to lock the first blade.

According to an aspect of the present invention, there is provided a control method of a compressor including a first cylinder in which a first suction passage and a second suction passage are provided and a second cylinder, the control method including:

the sliding block positioned in the first air cylinder is driven to slide to a first position, so that the first air suction channel is communicated with an inner cavity of the first air cylinder through a first connecting air passage arranged in the sliding block, and the second air suction channel is communicated with the pressure control chamber through a second connecting air passage arranged in the sliding block;

the motor drives the first cylinder and the second cylinder to compress refrigerant;

sliding the sliding block to a second position, wherein the first air suction channel is communicated with the pressure control chamber through the first connecting air channel, and the second air suction channel is communicated with the inner cavity of the first air cylinder, so that the first air cylinder stops compressing the refrigerant;

and communicating a stopping groove arranged at one side of the first blade groove of the first cylinder with the inner space of the shell, so that the stopping groove is filled with a high-pressure refrigerant.

The beneficial effects of the above technical scheme are: according to the rotary compressor and the control method thereof, two air suction channels, namely the first air suction channel and the second air suction channel, are arranged in one air cylinder, the slider in the air cylinder controls the conduction of the first air suction channel and the second air suction channel in a sliding mode, the air cylinder works normally when the first air suction channel is conducted, and the air cylinder is filled with high-pressure refrigerant to stop compressing the refrigerant when the second air suction channel is conducted, so that the capacity of the compressor is switched, and the requirements of different loads in different seasons are met.

Further features and advantages of the invention, as well as the structure and operation of various embodiments of the invention, are described in detail below with reference to the accompanying drawings. It should be noted that the present invention is not limited to the specific embodiments described herein. These examples are given herein for illustrative purposes only.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

FIG. 1 is a schematic view of a prior art cylinder configuration;

FIG. 2 is a schematic structural view of a rotary compressor according to the present invention;

FIG. 3 is a schematic cross-sectional view of the first cylinder taken along AA' of FIG. 2 in a first position;

FIG. 4 is a schematic cross-sectional view of the first cylinder taken along AA' of FIG. 2 in a second position of the slide;

FIG. 5 is a schematic cross-sectional view of a slider;

fig. 6 is a flow chart illustrating a control method of the compressor.

List of reference numerals:

10 compressor

11 casing

12 upper cylinder cover

13 first cylinder

131 first air suction channel

132 second suction channel

133 first blade

134 chute

135 pressure control chamber

136 suction chamber

137 exhaust cavity

14 second cylinder

15 lower cylinder cover

16 crankshaft

17 middle plate

18 control device

19 sliding block

191 first connecting air passage

192 second connecting air passage

193 first side

194 second side

195 third face

The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Throughout the drawings, like reference numerals designate corresponding elements. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

According to an aspect of the present invention, there is provided a rotary compressor.

Fig. 2 is a schematic structural view of a rotary compressor 10 according to the present invention. The compressor 10 shown in fig. 2 includes a housing 11, and two cylinders, i.e., a first cylinder 13 and a second cylinder 14, are disposed in the housing 11, where the first cylinder 13 is an upper cylinder and the second cylinder 14 is a lower cylinder, and in some embodiments, the first cylinder 13 may be the lower cylinder and the second cylinder 14 may be the upper cylinder. The first cylinder 13 and the second cylinder 14 are partitioned by an intermediate plate 17. The first cylinder 13 is provided with a first rotary piston and the second cylinder 14 is provided with a second rotary piston (not shown). The two ends of the first cylinder 13 are an upper cylinder cover 12 and a middle plate 17, and the two ends of the second cylinder 14 are a middle plate 17 and a lower cylinder cover 15 respectively. A crankshaft 16 is disposed in the casing 11, the crankshaft 16 has a long shaft portion, a short shaft portion and an eccentric portion, the first rotary piston and the second rotary piston are respectively sleeved on the eccentric portion of the crankshaft 16, the long shaft portion of the crankshaft 16 is connected to the motor, and the driving force of the motor is transmitted to the first rotary piston and the second rotary piston to compress the refrigerant. Be equipped with the second blade groove in the second cylinder 14, the first end in second blade groove is linked together with the inner chamber of second cylinder 14, and the second end in second blade groove sets up in the mounting hole intercommunication of second cylinder 14 with one, is equipped with a compression spring in the mounting hole, and compression spring and second blade butt mutually.

Fig. 3 is a schematic cross-sectional view of the first cylinder 13 in a first position along the slide 19 of AA' in fig. 2. The first cylinder 13, i.e., the upper cylinder, shown in fig. 3 is provided with a first air suction passage 131 and a second air suction passage 132, a first end of the first air suction passage 131 is communicated with a reservoir outside the housing 11 through a through hole provided in the housing 11, and a second end of the first air suction passage 131 is connected with an inner cavity of the first cylinder 13. The inner chamber of the first cylinder 13 is divided by the vane into a suction chamber 136 and a discharge chamber 137, and the second end of the first suction passage 131 can communicate with the suction chamber 136 of the first cylinder 13. A first end of the second air suction passage 132 communicates with the inner space of the housing 11, and a second end of the second air suction passage 132 is connected to the air suction chamber 136 of the first cylinder 13. The second cylinder 14 is provided with a third air suction channel, a first end of the first air suction channel 131 is communicated with the liquid storage device, and a second end of the first air suction channel 131 is connected with an inner cavity of the second cylinder 14. One of the first suction channel 131 and the second suction channel 132 is open and the other is closed, i.e. only one of the first suction channel 131 and the second suction channel 132 is open to the suction chamber 136 at the same time. Specifically, the cylinder wall of the first cylinder 13 is provided with a sliding groove 134 having a first position and a second position, the sliding block 19 is disposed in the sliding groove 134, a first side of the sliding groove 134 is communicated with the second end of the first air suction channel 131 and the second end of the second air suction channel 132, and a second side of the sliding groove 134 is communicated with the inner side of the first cylinder 13. The slider 19 shown in fig. 3 is located at the first position, the slider 19 provided on the cylinder wall of the first cylinder 13 slides between the first position (left end) and the second position (right end), when the slider 19 is located at the first position, the first air suction passage 131 is communicated with the inner cavity of the first cylinder 13, and when the slider 19 is located at the second position, the second air suction passage 132 is communicated with the inner cavity of the first cylinder 13.

Fig. 4 is a schematic cross-sectional view of the first cylinder 13 in a second position along the slide 19 of AA' in fig. 2. Referring to fig. 3 and 4, a first vane 133 groove is formed in the first cylinder 13, a first vane 133 is disposed in the first vane 133 groove, a first end (lower end) of the first vane 133 groove communicates with an inner cavity of the first cylinder 13, and a second end (upper end) of the first vane 133 groove communicates with a pressure control chamber 135. The slider 19 is provided with a first connecting air passage 191 and a second connecting air passage 192. The pressure control chamber 135 also communicates with a first side of the slide channel 134. When the slider 19 is at the first position, the first air suction channel 131 is communicated with the inner cavity of the first cylinder 13 through the first connecting air channel 191, and the second air suction channel 132 is communicated with the pressure control chamber 135 through the second connecting air channel 192. When the slide block 19 is at the second position, the first air suction channel 131 is communicated with the pressure control chamber 135 through the second connecting air channel 192, and the second air suction channel 132 is communicated with the inner cavity of the first air cylinder 13 through the sliding slot 134. The sliding block 19 has a first surface 193 opposite to the first side of the sliding chute 134 and a second surface 194 parallel to the first surface 193, the first end opening of the first connecting air channel 191 is arranged on the first surface 193, and the second end opening of the first connecting air channel 191 is arranged on the second surface 194; the slider 19 has a third surface 195 perpendicular to the first surface 193, the first end opening of the second connecting air channel 192 is disposed on the first surface 193, and the second end opening of the first connecting air channel 191 is disposed on the third surface 195. When the slide block 19 is located at the first position, the first end opening of the first connecting air duct 191 is communicated with the second end of the first air suction channel 131, the second end opening of the first connecting air duct 191 is connected with the inner cavity of the first air cylinder 13, the first end opening of the second connecting air duct 192 is communicated with the second end opening of the second air suction channel 132, and the second end opening of the second connecting air duct 192 is exposed to the sliding groove 134 and is communicated with the pressure control chamber 135 through the sliding groove 134. When the slider 19 is located at the second position, the first end opening of the first connecting air passage 191 communicates with the second end of the first suction passage 131 and communicates with the pressure control chamber 135. The switching of the slide 19 between the first and second position is driven by a control device 18 located in the intermediate plate 17.

Fig. 5 is a schematic cross-sectional view of a slider 19. The first connection air passage 191 of the slider 19 is positioned above the second connection air passage 192, and the inner diameter of the first connection air passage 191 is larger than that of the second connection air passage 192. The first connecting air channel 191 is formed along the width direction of the sliding block 19, the second connecting air channel 192 is in an L shape, a first end opening of the second connecting air channel 192 is located on the first surface 193 of the sliding block 19, and a second end opening of the second connecting air channel is located on the second surface 194 of the sliding block 19. Switching of the gas passage among the first inhalation passage 131, the second inhalation passage 132, the pressure control chamber 135, and the inhalation chamber 136 is achieved by the first connection gas passage 191 and the second connection gas passage 192.

Referring to fig. 3 again, the slider 19 shown in fig. 3 is located at the first position, at this time, the first air suction channel 131 is communicated with the air suction cavity 136 through the first connecting air channel 191 of the chute, and the low-pressure refrigerant in the accumulator can enter the air suction cavity 136 along the low-pressure air channel Ps. The second air suction channel 132 is communicated with the pressure control chamber 135 through the second connecting air channel 192 and the ring groove of the slider 19, and a high-pressure refrigerant outside the housing 11 can enter the pressure control chamber 135 along the high-pressure air channel Pd, so that the first vane 133 can abut against the first rotary piston, and the first cylinder 13 can normally compress the refrigerant. In this case, the first cylinder 13 and the second cylinder 14 both normally compress the refrigerant.

Referring again to fig. 4, the slider 19 shown in fig. 4 is located at the second position, and at this time, the first air suction channel 131 is connected to the pressure control chamber 135 through the first connecting air channel 191, i.e. the first end opening of the first connecting air channel 191 is exposed to the first air suction channel 131 and the pressure control chamber 135, so as to realize the communication between the first air suction channel 131 and the pressure control chamber 135. The second air suction passage 132 communicates with an air suction chamber 136 of the first cylinder 13 through a slide groove 134. The second cylinder 14 is driven by the crankshaft 16 to normally compress the refrigerant and discharge the high-pressure refrigerant into the housing 11, so that the housing 11 is filled with the high-pressure refrigerant. The high-pressure refrigerant in the housing 11 enters the inner cavity of the first cylinder 13 along the high-pressure air path Pd, and at this time, the first cylinder 13 cannot compress the refrigerant, i.e., stops working. The low-pressure refrigerant enters the control chamber along the low-pressure gas path Ps, so that the first vane 133 is pushed into the control chamber by the high-pressure refrigerant in the first cylinder 13.

In some embodiments, a three-way valve is provided in the first cylinder 13 to allow one of the first suction passage 131 and the second suction passage 132 to be open and the other to be closed. A second end of the first suction passage 131 communicates with a first port of the three-way valve, a second end of the second suction passage 132 communicates with a second port of the three-way valve, and a third port of the three-way valve communicates with an inner chamber of the first cylinder 13.

In some embodiments, a stop groove is formed on one side of the groove of the first vane 133, and when the slider 19 is located at the second position, the stop groove is communicated with the second suction passage 132 to lock the first vane 133. When the slider 19 is located at the first position, the stopper groove communicates with the first air suction passage 131.

In some embodiments, a pneumatic lock is disposed on one side of the first blade 133, and when the slider 19 is located at the second position, one end of the pneumatic lock abuts against a side surface of the first blade 133 to lock the first blade 133.

According to an aspect of the present invention, there is provided a control method of a compressor.

Fig. 6 is a flowchart illustrating a control method of the compressor 10. The method shown in fig. 6 includes: step S1, step S2, step S3, and step S4. In step S1, the slider 19 located in the first cylinder 13 is driven to slide to the first position, so that the first suction passage 131 communicates with the inner cavity of the first cylinder 13 through the first connecting passage 191 provided in the slider 19, and the second suction passage 132 communicates with the pressure control chamber 135 through the second connecting passage 192 provided in the slider 19. In step S2, the motor drives the first cylinder 13 and the second cylinder 14 to compress the refrigerant. In step S3, the slider 19 is slid to the second position, the first suction passage 131 communicates with the pressure control chamber 135 through the first connecting air passage 191, and the second suction passage 132 communicates with the inner chamber of the first cylinder 13, so that the first cylinder 13 stops compressing the refrigerant. In step S4, the stopper groove provided at one side of the groove of the first vane 133 of the first cylinder 13 is communicated with the inner space of the housing 11 so that the stopper groove is filled with the high-pressure refrigerant.

In summary, according to the rotary compressor and the control method thereof, two air suction channels, namely the first air suction channel and the second air suction channel, are arranged in one air cylinder, the slider in the air cylinder controls the conduction of the first air suction channel and the second air suction channel in a sliding manner, the air cylinder normally works when the first air suction channel is conducted, and the air cylinder is filled with high-pressure refrigerant when the second air suction channel is conducted so as to stop compressing the refrigerant, so that the capacity of the compressor is switched, and the requirements of different loads in different seasons are met.

The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A rotary compressor, comprising:

a housing;

the first cylinder is provided with a first air suction channel and a second air suction channel, the first end of the first air suction channel is communicated with a liquid storage device outside the shell through a through hole formed in the shell, the second end of the first air suction channel is connected with an inner cavity of the first cylinder, the first end of the second air suction channel is communicated with the inner space of the shell, and the second end of the second air suction channel is connected with the inner cavity of the first cylinder; the first cylinder is also provided with a pressure control chamber which is communicated with the second end of the first blade groove;

when the sliding block is at the first position, the first air suction channel is communicated with an inner cavity of the first air cylinder, and a low-pressure refrigerant enters the pressure control cavity through the first air suction channel;

when the sliding block is at the second position, the second air suction channel is communicated with the inner cavity of the first air cylinder, and a high-pressure refrigerant in the shell enters the pressure control chamber through the second air suction channel.

2. The rotary compressor of claim 1, wherein the cylinder wall of the first cylinder is provided with a sliding groove having the first position and the second position, the sliding block is disposed in the sliding groove, a first side of the sliding groove communicates with the second end of the first suction passage and the second end of the second suction passage, and a second side of the sliding groove communicates with the inside of the first cylinder.

3. The rotary compressor of claim 2, wherein the slider block has a first connecting air passage and a second connecting air passage, and the pressure control chamber communicates with the first side of the sliding groove;

4. The rotary compressor of claim 3, wherein the sliding block has a first surface opposite to the first side of the sliding slot and a second surface parallel to the first surface, the first end opening of the first connecting air passage is disposed on the first surface, and the second end opening of the first connecting air passage is disposed on the second surface;

5. The rotary compressor of claim 4, wherein when the sliding block is located at the first position, the first end opening of the first connecting air passage is communicated with the second end of the first air suction passage, the second end opening of the first connecting air passage is connected with the inner cavity of the first cylinder, the first end opening of the second connecting air passage is communicated with the second end opening of the second air suction passage, and the second end opening of the second connecting air passage is exposed to the sliding groove and is communicated with the pressure control chamber through the sliding groove.

6. The rotary compressor of claim 4, wherein the first end opening of the first connecting air passage communicates with the second end of the first suction passage and with a pressure control chamber when the slider is located at the second position.

7. The rotary compressor of claim 1, further comprising a three-way valve for making one of the first suction passage and the second suction passage conductive and the other suction passage closed.

8. The rotary compressor of claim 7, wherein the second end of the first suction passage communicates with the first port of the three-way valve, the second end of the second suction passage communicates with the second port of the three-way valve, and the third port of the three-way valve communicates with the inner chamber of the first cylinder.

9. The rotary compressor of claim 1, wherein a stopper groove is formed at one side of the first vane groove, and the stopper groove communicates with the second suction passage to lock the first vane when the slider is located at the second position.

10. The rotary compressor of claim 9, wherein the stopper groove communicates with the first suction passage when the slider is located at the first position.

11. The rotary compressor of claim 1, wherein a pneumatic lock is disposed on one side of the first vane, and when the sliding block is located at the second position, one end of the pneumatic lock abuts against a side surface of the first vane to lock the first vane.

12. A method for controlling a compressor, comprising the compressor of any one of claims 1 to 11, wherein a sliding groove having the first position and the second position is formed in a wall of the first cylinder, the sliding block is disposed in the sliding groove, the sliding block has a first connecting air passage and a second connecting air passage, when the sliding block is in the first position, the first air suction passage is communicated with an inner cavity of the first cylinder through the first connecting air passage, and the second air suction passage is communicated with the pressure control chamber through the second connecting air passage; when the slide block is at a second position, the first air suction channel is communicated with the pressure control chamber through the second connecting air channel, and the second air suction channel is communicated with the inner cavity of the first air cylinder through the sliding groove, wherein the control method comprises the following steps:

the sliding block positioned in the first air cylinder is driven to slide to a first position, so that the first air suction channel is communicated with an inner cavity of the first air cylinder through a first connecting air channel arranged on the sliding block, and the second air suction channel is communicated with the pressure control chamber through a second connecting air channel arranged on the sliding block;