阅读说明：本技术 压缩机、空调器及其控制方法 (Compressor, air conditioner and control method thereof ) 是由 魏会军 董辉 阙沛祯 胡艳军 向柳 刘华文 于 2020-11-16 设计创作，主要内容包括：本申请提供一种压缩机、空调器及其控制方法,第一压缩腔和第二压缩腔；第一压缩腔包括第一压缩室；第一压缩室具有第一排气口；第一压缩室的容积大小可调；第一排气口连通至第二压缩腔；第一排气口用于使经过第一压缩室一级压缩后的冷媒进入第二压缩腔内进行二级压缩。根据本申请的压缩机、空调器及其控制方法,能兼顾低温制热和中间制冷工况。(The application provides a compressor, an air conditioner and a control method thereof, wherein a first compression cavity and a second compression cavity are arranged in the compressor; the first compression chamber comprises a first compression chamber; the first compression chamber has a first exhaust port; the volume of the first compression chamber is adjustable; the first exhaust port is communicated to the second compression cavity; the first exhaust port is used for enabling the refrigerant after the first-stage compression of the first compression chamber to enter the second compression cavity for second-stage compression. According to the compressor, the air conditioner and the control method of the compressor, low-temperature heating and intermediate cooling working conditions can be considered.)

1. A compressor, comprising:

a first compression chamber; the first compression chamber comprises a first compression chamber (111); the first compression chamber (111) has a first exhaust port (43); the volume of the first compression chamber (111) is adjustable;

and a second compression chamber; the first exhaust port (43) is communicated to the second compression chamber; the first exhaust port (43) is used for enabling the refrigerant which is subjected to the first-stage compression in the first compression chamber (111) to enter the second compression cavity for the second-stage compression.

2. Compressor according to claim 1, characterized in that it comprises a first cylinder (11) and a roller; the first compression chamber is arranged in the first cylinder (11); a first sliding vane (21) and a second sliding vane (22) are arranged in the first cylinder (11); the first sliding piece (21) is abutted with the roller; -a first position with said second slide (22) in abutment with said roller; -a second position with said second slide (22) disengaged from said roller; said second slide (22) being movable between said first and second positions; when the second vane (22) is located at the first position, the second vane (22) and the first vane (21) divide the first compression chamber into the first compression chamber (111) and the second compression chamber (112) to reduce the volume of the first compression chamber (111).

3. The compressor of claim 2, wherein the first cylinder (11) is provided with a second vane groove (221); the second sliding sheet (22) is arranged in the second sliding sheet groove (221); the first cylinder (11) is provided with a force application channel (3) communicated with the second sliding sheet groove (221); a first pressure or a second pressure can be applied through the force application channel (3); -said first pressure is used to bring said second slide (22) into abutment with said roller; the second pressure is used to disengage a second slide (22) from the roller.

4. A compressor according to claim 3, wherein a first end of the second vane groove (221) is connected to the first cylinder (11); the force application channel (3) is arranged at the second end of the slide sheet groove;

and/or the second sliding piece (22) is connected with the second sliding piece groove (221) through an elastic piece (31);

and/or a second end of the second slide groove (221) forms a chamber; an opening at one end of the chamber adjacent the first compression chamber; and the chamber is communicated with the force application channel (3).

5. A compressor according to claim 3, wherein the forcing passage (3) communicates with a first end of the first flow path; the first flow path is used for providing a first refrigerant to the force application channel (3); the first refrigerant is used for providing the first pressure;

and/or the force application channel (3) is communicated with the first end of the second flow path; the second flow path is used for providing a second refrigerant to the force application channel (3); the second refrigerant is used for providing the second pressure; wherein the first pressure > second pressure.

6. A compressor according to claim 5, characterized in that it has a total discharge (45); the second compression chamber (112) having a second exhaust port (44); the second exhaust port (44) is in communication with the main exhaust;

and/or an air suction port (46) is arranged on the first cylinder (11); the suction port (46) is communicated to the first compression chamber (111);

and/or a second end of the first flow path is in communication with the total exhaust port (45);

and/or a first air supplementing port (41) is arranged on the first air cylinder (11); the first air supply port (41) communicates with the second compression chamber (112).

7. The compressor of claim 6, wherein the compressor includes a control mechanism; when the force application channel (3) is communicated with the first end of the first flow path and the force application channel (3) is communicated with the first end of the second flow path, the control mechanism is used for controlling the on-off of the first flow path and/or the second flow path;

and/or when a first air supplementing port (41) is arranged on the first air cylinder (11), and the first air supplementing port (41) is communicated with the second compression chamber (112), the control mechanism is used for controlling the on-off of a pipeline connected with the first air supplementing port (41).

8. The compressor of claim 1, further comprising a diaphragm assembly (5); the diaphragm assembly (5) is located between the first compression chamber and the second compression chamber; the diaphragm assembly (5) comprises a diaphragm cavity; the partition chamber communicating the first exhaust port (43) and the second compression chamber; a second air supplementing port (42) is arranged on the clapboard component (5); the second air supplement port (42) is communicated with the partition plate cavity.

9. An air conditioner comprising a compressor, wherein the compressor is as claimed in any one of claims 1 to 8.

10. The air conditioner as claimed in claim 9, further comprising a first heat exchanging part, a first throttling means (62), a flash evaporator (63), a second throttling means (65) (64) and a second heat exchanging part which are connected in sequence; when the compressor has a total exhaust port (45), the first heat exchanging portion communicates with the total exhaust port (45);

and/or when the compressor further comprises a baffle plate assembly (5), and a second air supplementing port (42) is arranged on the baffle plate assembly (5), the air outlet of the flash evaporator (63) is communicated with the second air supplementing port (42);

and/or when the compressor comprises a first cylinder (11), and a first air supplementing port (41) is arranged on the first cylinder (11), the air outlet of the flash evaporator (63) is communicated with the first air supplementing port (41);

and/or, when the compressor comprises a first cylinder (11), a second sliding sheet groove (221) is arranged on the first cylinder (11); and a force application channel (3) communicated with the second sliding sheet groove (221) is arranged on the first cylinder (11), and when the force application channel (3) is communicated with the first end of the second flow path, the refrigerant outlet of the second heat exchange part is communicated with the second end of the second flow path.

11. A control method of an air conditioner according to any one of claims 9 to 10, comprising the steps of:

acquiring an operation mode of an air conditioner;

when the compressor comprises a control mechanism and a first cylinder (11), and a first air supplementing port (41) is arranged on the first cylinder (11), controlling the on-off of a pipeline connected with the first air supplementing port (41) according to the operation mode;

and/or, when the compressor comprises a control mechanism and a first cylinder (11), a second sliding sheet groove (221) is arranged on the first cylinder (11); a force application channel (3) communicated with the second slide sheet groove (221) is arranged on the first air cylinder (11), and when the force application channel (3) is communicated with the first end of a second flow path, the on-off of the second flow path is controlled according to the operation mode;

and/or, when the compressor comprises a control mechanism and a first cylinder (11), a second sliding sheet groove (221) is arranged on the first cylinder (11); and a force application channel (3) communicated with the second sliding sheet groove (221) is arranged on the first air cylinder (11), and when the force application channel (3) is communicated with the first end of the first flow path, the on-off of the first flow path is controlled according to the operation mode.

12. The control method of an air conditioner according to claim 11, wherein said controlling the opening and closing of the pipe connected to the first air supplement port (41) according to the operation mode comprises the steps of:

when the operation mode of the air conditioner is a heating mode, controlling the pipeline connected with the first air supplementing opening (41) to be disconnected; and/or when the running mode of the air conditioner is a cooling mode, controlling the pipeline connected with the first air supplementing opening (41) to be communicated;

and/or the step of controlling the on-off of the first flow path according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, controlling the first flow path to be communicated; and/or controlling the first flow path to be disconnected when the running mode of the air conditioner is a cooling mode;

and/or the step of controlling the on-off of the second flow path according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, controlling the second flow path to be disconnected; and/or controlling the second flow path to be communicated when the running mode of the air conditioner is a cooling mode.

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a compressor, an air conditioner and a control method of the air conditioner.

Background

At present, the double-stage enthalpy-increasing frequency-changing compressor still keeps efficient characteristics under low-temperature working conditions, and occupies more and more important positions in the fields of air conditioners, heat pump water heaters, freezing and refrigerating and the like.

However, the ratio of the displacement of the second cylinder, namely the high-pressure cylinder, to the displacement of the first cylinder, namely the low-pressure cylinder, of the double-stage enthalpy-increasing compressor is a volume ratio. Generally, the air conditioner is suitable for a low-temperature heating working condition when the volume is small, and is suitable for an intermediate refrigeration working condition when the volume is large. The bipolar enthalpy-increasing compressor in the prior art cannot give consideration to both low-temperature heating and intermediate refrigeration working conditions.

Therefore, how to provide a compressor, an air conditioner and a control method thereof which can take both low-temperature heating and intermediate cooling conditions into consideration is a problem which needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

Therefore, an object of the present invention is to provide a compressor, an air conditioner and a control method thereof, which can achieve both low-temperature heating and intermediate cooling conditions.

In order to solve the above problems, the present application provides a compressor including:

a first compression chamber; the first compression chamber comprises a first compression chamber; the first compression chamber has a first exhaust port; the volume of the first compression chamber is adjustable;

and a second compression chamber; the first exhaust port is communicated to the second compression cavity; the first exhaust port is used for enabling the refrigerant after the first-stage compression of the first compression chamber to enter the second compression cavity for second-stage compression.

Preferably, the compressor comprises a first cylinder and a roller; the first compression cavity is arranged in the first cylinder; a first sliding sheet and a second sliding sheet are arranged in the first cylinder; the first sliding sheet is abutted with the roller; the second sliding sheet is abutted with the roller to form a first position; taking the second slide sheet separated from the roller as a second position; the second slide is movable between a first position and a second position; when the second slide plate is located at the first position, the second slide plate and the first slide plate divide the first compression chamber into a first compression chamber and a second compression chamber to reduce the volume of the first compression chamber.

Preferably, a second slide sheet groove is arranged on the first cylinder; the second sliding sheet is arranged in the second sliding sheet groove; a force application channel communicated with the second slide sheet groove is arranged on the first cylinder; the first pressure or the second pressure can be applied through the force application channel; the first pressure is used for enabling the second sliding piece to be abutted with the roller; the second pressure is used to disengage the second slide from the roller.

Preferably, the first end of the second slide sheet groove is communicated to the first cylinder; the force application channel is arranged at the second end of the slide sheet groove;

and/or the second sliding sheet is connected with the second sliding sheet groove through an elastic piece;

and/or the second end of the second slide groove forms a cavity; an opening at one end of the chamber near the first compression chamber; and the chamber is in communication with the force application channel.

Preferably, the force application channel is communicated with the first end of the first flow path; the first flow path is used for supplying a first refrigerant to the force application channel; the first refrigerant is used for providing a first pressure;

and/or the force application channel is communicated with the first end of the second flow path; the second flow path is used for supplying a second refrigerant to the force application channel; the second refrigerant is used for providing a second pressure; wherein the first pressure > the second pressure.

Preferably, the compressor has a total discharge; the second compression chamber has a second discharge port; the second exhaust port is communicated with the main exhaust;

and/or the first cylinder is provided with an air suction port; the air suction port is communicated with the first compression chamber;

and/or the second end of the first flow path is communicated with the main exhaust port;

and/or a first air supplementing port is arranged on the first air cylinder; the first air supplementing port is communicated with the second compression chamber.

Preferably, the compressor comprises a control mechanism; when the force application channel is communicated with the first end of the first flow path and the force application channel is communicated with the first end of the second flow path, the control mechanism is used for controlling the on-off of the first flow path and/or the second flow path;

and/or when the first air cylinder is provided with a first air supplementing port which is communicated with the second compression chamber, the control mechanism is used for controlling the on-off of a pipeline connected with the first air supplementing port.

Preferably, the compressor further comprises a diaphragm assembly; the baffle plate assembly is positioned between the first compression chamber and the second compression chamber; the baffle plate assembly comprises a baffle plate cavity; the partition plate cavity is communicated with the first exhaust port and the second compression cavity; a second air supplementing port is arranged on the clapboard component; the second air supplementing port is communicated with the partition plate cavity.

An air conditioner comprises a compressor, wherein the compressor is the compressor.

Preferably, the air conditioner further comprises a first heat exchanging part, a first throttling device, a flash evaporator, a second throttling device and a second heat exchanging part which are connected in sequence; when the compressor is provided with a main exhaust port, the first heat exchanging part is communicated with the main exhaust port;

and/or when the compressor also comprises a partition plate assembly, and a second air supplementing port is arranged on the partition plate assembly, the air outlet of the flash evaporator is communicated with the second air supplementing port;

and/or when the compressor comprises a first cylinder, and a first air supplementing port is arranged on the first cylinder, the air outlet of the flash evaporator is communicated with the first air supplementing port;

and/or, when the compressor comprises a first cylinder, a second slide sheet groove is arranged on the first cylinder; and when the force application channel is communicated with the first end of the second flow path, the refrigerant outlet of the second heat exchange part is communicated with the second end of the second flow path.

A control method of the air conditioner comprises the following steps:

acquiring an operation mode of an air conditioner;

when the compressor comprises a control mechanism and a first air cylinder, and a first air supplementing port is arranged on the first air cylinder, controlling the on-off of a pipeline connected with the first air supplementing port according to an operation mode;

and/or when the compressor comprises a control mechanism and a first cylinder, the first cylinder is provided with a second sliding sheet groove; a force application channel communicated with the second slide sheet groove is arranged on the first air cylinder, and when the force application channel is communicated with the first end of the second flow path, the on-off of the second flow path is controlled according to an operation mode;

and/or when the compressor comprises a control mechanism and a first cylinder, the first cylinder is provided with a second sliding sheet groove; and a force application channel communicated with the second slide sheet groove is arranged on the first cylinder, and when the force application channel is communicated with the first end of the first flow path, the on-off of the first flow path is controlled according to an operation mode.

Preferably, the step of controlling the on-off of the pipeline connected with the first air supplementing port according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, controlling the pipeline connected with the first air supplementing port to be disconnected; and/or controlling the pipeline connected with the first air supplementing port to be communicated when the running mode of the air conditioner is a refrigeration mode;

and/or controlling the on-off of the first flow path according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, controlling the first flow path to be communicated; and/or controlling the first flow path to be disconnected when the operation mode of the air conditioner is a cooling mode;

and/or controlling the on-off of the second flow path according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, controlling the second flow path to be disconnected; and/or controlling the second flow path to be communicated when the operation mode of the air conditioner is a cooling mode.

The application provides a compressor, an air conditioner and a control method thereof; the compressor, the air conditioner and the control method thereof can give consideration to both low-temperature heating and intermediate cooling working conditions.

Drawings

Fig. 1 is a schematic structural view of a compressor according to an embodiment of the present application;

FIG. 2 is a schematic view of an installation structure of a cylinder according to an embodiment of the present application;

FIG. 3 is a schematic view of a cylinder according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a compressor according to an embodiment of the present application;

fig. 5 is a schematic flow chart of the air conditioner of the present application.

The reference numerals are represented as:

11. a first cylinder; 111. a first compression chamber; 112. a second compression chamber; 12. a second cylinder; 21. a first slip sheet; 211. a first slide groove; 22. a second slip sheet; 221. a second slide groove; 3. a force application channel; 31. an elastic member; 41. a first air supplement port; 42. a second air supplement port; 43. a first exhaust port; 44. a second exhaust port; 45. a total exhaust port; 46. an air suction port; 5. a bulkhead assembly; 51. a separator vent hole; 52. A baffle plate through-flow aperture; 61. a first heat exchanger; 62. a first throttling device; 63. a flash evaporator; 64. a second throttling device; 65. a second throttling device; 66. a liquid separator; 71. a first solenoid valve; 72. a second solenoid valve; 73. a third electromagnetic valve; 81. an upper flange; 82. and a lower flange.

Detailed Description

Referring collectively to fig. 1-2, a compressor comprises: a first compression chamber and a second compression chamber; the first compression chamber includes a first compression chamber 111; the first compression chamber 111 has a first exhaust port 43; the volume of the first compression chamber 111 is adjustable; the first exhaust port 43 communicates to the second compression chamber; the first exhaust port 43 is used for enabling the refrigerant after the first-stage compression of the first compression chamber 111 to enter the second compression chamber for second-stage compression, and the volume of the first compression chamber 111 is adjustable, so that the volume ratio of the first compression chamber to the second compression chamber is adjusted. In low-temperature heating, the volume of first compression chamber 111 is adjusted so that the volume ratio is adjusted smaller; in the intermediate cooling, the capacity ratio is increased by adjusting the volume of first compression chamber 111, and the low-temperature heating and intermediate cooling conditions can be satisfied at the same time. The first compression cavity is a low-pressure cavity; the second compression chamber is a high pressure chamber.

The ratio of the displacement of the second cylinder 12, namely the high-pressure cylinder, to the displacement of the first cylinder 11, namely the low-pressure cylinder, is a volume ratio, and generally, the low-pressure cylinder is suitable for a low-temperature heating working condition when the volume ratio is small, and is suitable for an intermediate refrigeration working condition when the volume ratio is large. This application is through the variable volume of first compression chamber 111 to compromise low temperature heating and middle refrigeration operating mode. The first cylinder 11, i.e., the low cylinder, is located on the upper side near the motor, and the second cylinder 12, i.e., the high cylinder, is located below the first cylinder 11, i.e., the low cylinder.

The present application also discloses some embodiments, the compressor comprises a first cylinder 11 and a roller; the first compression chamber is arranged in the first cylinder 11; a first sliding sheet 21 and a second sliding sheet 22 are arranged in the first cylinder 11; the first slide sheet 21 is abutted with the roller; the second slide plate 22 is in contact with the roller as a first position; the second position is the second slide 22 disengaged from the roller; the second slide 22 is movable between a first position and a second position; when the second slide plate 22 is located at the first position, the second slide plate 22 and the first slide plate 21 divide the first compression chamber into a first compression chamber 111 and a second compression chamber 112, which is equivalent to reducing the volume of the first compression chamber 111 (in the case of no division, the whole first compression chamber is the first compression chamber 111); when the second vane 22 is located at the second position, the second vane 22 is separated from the roller, the first compression chamber 111 and the second compression chamber 112 are communicated, and the entire first compression chamber is the first compression chamber 111, so that the volume of the first compression chamber 111 is increased. A first slide sheet groove 211 is arranged in the first cylinder 11, namely the low pressure cylinder; the first sliding piece 21 is arranged in the first sliding piece groove 211; the rear portion of the second vane groove 221 is sealed and provided with the urging passage 3.

The application also discloses some embodiments, a second slide sheet groove 221 is arranged on the first cylinder 11; the second sliding piece 22 is arranged in the second sliding piece groove 221; the first cylinder 11 is provided with a force application channel 3 communicated with the second slide groove 221; the first pressure or the second pressure can be applied through the force application channel 3; the first pressure is used to bring the second vane 22 into abutment with the roller; the second pressure is used to disengage the second slide 22 from the roller. The first cylinder 11, i.e., the low pressure cylinder, is provided with a first slide groove 211 and a second slide groove 221, which are respectively assembled with the first slide 21 and the second slide 22. The tail part of the second sliding sheet groove 221 is provided with a control channel for sealing, and the tail part of the second sliding sheet 22 is provided with a tension spring. The first vane 21 and the second vane 22 divide the first cylinder 11, i.e., the low pressure cylinder, into a first compression chamber 111 and a second compression chamber 112, the first compression chamber 111 is provided with a suction port 46 for sucking a low pressure refrigerant, and the second compression chamber 112 is provided with a first suction port 41 for sucking a medium pressure refrigerant.

The application also discloses some embodiments, a first end of the second slide sheet groove 221 is communicated to the first cylinder 11; the force application channel 3 is arranged at the second end of the slide sheet groove;

the second slide 22 is connected to the second slide groove 221 via an elastic member 31. The elastic member 31 is a spring, and is connected to the tail of the second sliding sheet groove 221 through the spring; whether the second sliding sheet 22 supports against the roller is controlled by introducing a low-pressure or high-pressure refrigerant into the force application channel 3 at the tail part of the sliding sheet, so that the displacement of a first cylinder 11, namely the first cylinder 11, namely a low-pressure cylinder is changed, the volumetric ratio can be changed, and the requirements of different working conditions are met. When the compressor is applied to a low-temperature heating working condition, a low-pressure refrigerant is introduced into the force application channel 3 at the tail part of the second sliding piece 22, so that the second sliding piece 22 retreats into the second sliding piece groove 221 under the action of the spring, and at the moment, the first cylinder 11, namely the low-pressure cylinder has the largest displacement and the smallest volume ratio; when the compressor is applied to the middle refrigeration working condition, a high-pressure refrigerant is introduced into the force application channel 3 at the tail part of the second sliding sheet 22, and at the moment, the second sliding sheet 22 can abut against the roller to divide the first compression cavity into a first compression chamber 111 and a second compression chamber 112. After being compressed, the refrigerant in the first compression chamber 111 enters the partition cavity through the first exhaust port 43 and the partition exhaust hole 51 and then enters the second compression cavity from the partition through hole 52 to participate in secondary compression; at this time, the first air supplement port 41 directly enters the medium pressure refrigerant, enters the housing through the second air exhaust port 44 after the compression is completed, and is exhausted through the main air exhaust port 45.

The second end of the second slide groove 221 forms a chamber; an opening at one end of the chamber near the first compression chamber; and the chamber communicates with the force application channel 3. Since the second vane groove 221 needs to be sealed, bosses are provided on the upper flange 81 and the diaphragm assembly 5 to seal the second vane groove 221. The compressor further includes a lower flange 82, the lower flange 82 being located below the second cylinder 12.

Referring to FIGS. 3-4 in combination, the present application further discloses embodiments wherein the force applying passage 3 is in communication with a first end of the first flow path; the first flow path is used for providing a first refrigerant to the force application channel 3; the first refrigerant is used for providing a first pressure;

the force application channel 3 is communicated with the first end of the second flow path; the second flow path is used for providing a second refrigerant to the force application channel 3; the second refrigerant is used for providing a second pressure; wherein the first pressure > the second pressure;

the present application also discloses embodiments where the compressor has a total discharge port 45; the second compression chamber 112 has a second discharge port 44; the second exhaust port 44 is in communication with the main exhaust;

the first cylinder 11 is provided with an air suction port 46; the suction port 46 communicates with the first compression chamber 111; the suction port 46 sucks a low-pressure refrigerant;

the second end of the first flow path is communicated with the main exhaust port 45, and high-pressure gas exhausted from the main exhaust port 45 of the compressor enters the force application channel 3 to further push the second sliding sheet 22 to move inwards to be abutted against the roller;

the first cylinder 11 is provided with a first air supplement port 41; the first suction port 41 communicates with the second compression chamber 112. The second compression chamber 112 sucks the medium-pressure refrigerant through the first suction port 41.

The present application also discloses some embodiments, a compressor comprising a control mechanism; when the force application channel 3 is communicated with the first end of the first flow path and the force application channel 3 is communicated with the first end of the second flow path, the control mechanism is used for controlling the on-off of the first flow path and/or the second flow path;

when the first cylinder 11 is provided with the first air supplement port 41, and the first air supplement port 41 is communicated with the second compression chamber 112, the control mechanism is used for controlling the on-off of the pipeline connected with the first air supplement port 41.

The control mechanism includes a first solenoid valve 71, a second solenoid valve 72, and a third solenoid valve 73; the first solenoid valve 71 is provided on the first flow path; the second electromagnetic valve 72 is arranged on the second flow path; the third solenoid valve 73 is provided on a pipe connected to the first air replenishing port 41. The force application channel 3 is controlled by a control mechanism to be connected with suction (low pressure) and exhaust (high pressure) to control the fluid pressure in the force application channel 3.

The present application also discloses embodiments, the compressor further comprising a diaphragm assembly 5; the baffle plate assembly 5 is positioned between the first compression chamber and the second compression chamber; the diaphragm assembly 5 comprises a diaphragm chamber; the partition chamber communicates the first exhaust port 43 and the second compression chamber; the clapboard component 5 is provided with a second air supplementing port 42; the second supply port 42 communicates with the diaphragm chamber. The first cylinder 11, namely the low pressure cylinder, is provided with a first exhaust port 43 and a second exhaust port 44, the first exhaust port 43 is connected with an exhaust hole on the partition plate and used for low pressure stage exhaust, and gas compressed in the first compression chamber 111 enters a second compression cavity through the exhaust hole on the partition plate for secondary compression; the second exhaust port 44 is connected to an exhaust hole of the upper flange 81, and is used for compressing and exhausting the medium-pressure refrigerant when a large volume ratio is required, and exhausting the compressed gas in the second compression chamber 112 through the exhaust hole of the upper flange 81.

According to an embodiment of the application, an air conditioner is provided, which comprises a compressor, wherein the compressor is the compressor. The compressor is a two-stage enthalpy-increasing compressor.

The application also discloses some embodiments, the air conditioner further comprises a first heat exchanging part, a first throttling device 62, a flash evaporator 63, a second throttling device 6564 and a second heat exchanging part which are connected in sequence; when the compressor has the total exhaust port 45, the first heat exchanging portion communicates with the total exhaust port 45;

when the compressor further comprises a partition plate assembly 5, and a second air supplementing port 42 is arranged on the partition plate assembly 5, the air outlet of the flash evaporator 63 is communicated with the second air supplementing port 42;

when the compressor comprises a first cylinder 11, and a first air supplement port 41 is arranged on the first cylinder 11, the air outlet of the flash evaporator 63 is communicated with the first air supplement port 41;

when the compressor comprises the first cylinder 11, the first cylinder 11 is provided with a second slide sheet groove 221; the first cylinder 11 is provided with a force application channel 3 communicated with the second sliding vane groove 221, when the force application channel 3 is communicated with the first end of the second flow path, the refrigerant outlet of the second heat exchanging part is communicated with the second end of the second flow path, the refrigerant outlet of the second refrigerant is a low-pressure refrigerant, the low-pressure refrigerant enters the force application channel 3, the elastic force of the elastic part 31 on the second sliding vane 22 cannot be offset, the second sliding vane 22 is retracted into the second sliding vane groove 221, the whole first compression cavity is the first compression chamber 111, and the volume of the first compression chamber 111 is large.

According to an embodiment of the present application, there is provided a control method of the air conditioner, including the following steps:

acquiring an operation mode of an air conditioner;

when the compressor comprises a control mechanism and a first cylinder 11, and a first air supplement port 41 is arranged on the first cylinder 11, controlling the on-off of a pipeline connected with the first air supplement port 41 according to an operation mode;

when the compressor comprises a control mechanism and a first cylinder 11, a second slide sheet groove 221 is arranged on the first cylinder 11; the first cylinder 11 is provided with a force application channel 3 communicated with the second slide sheet groove 221, and when the force application channel 3 is communicated with the first end of the second flow path, the on-off of the second flow path is controlled according to an operation mode;

when the compressor comprises a control mechanism and a first cylinder 11, a second slide sheet groove 221 is arranged on the first cylinder 11; the first cylinder 11 is provided with a force application channel 3 communicating with the second vane groove 221, and when the force application channel 3 communicates with the first end of the first flow path, the on/off of the first flow path is controlled according to the operation mode.

The application also discloses some embodiments, and controlling the on-off of the pipeline connected with the first air supplement port 41 according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, the pipeline connected with the first air supplement port 41 is controlled to be disconnected; when the operation mode of the air conditioner is a cooling mode, the pipeline connected with the first air supplement port 41 is controlled to be communicated;

the step of controlling the on-off of the first flow path according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, controlling the first flow path to be communicated; when the operation mode of the air conditioner is a cooling mode, controlling the first flow path to be disconnected;

the step of controlling the on-off of the second flow path according to the operation mode comprises the following steps:

when the operation mode of the air conditioner is a heating mode, controlling the second flow path to be disconnected; and when the operation mode of the air conditioner is the cooling mode, controlling the second flow path to be communicated.

When the compressor is applied to the low temperature heating condition, the second solenoid valve 72 is opened and the first solenoid valve 71 and the third solenoid valve 73 are closed. The control mechanism controls the force application channel 3 to suck a low-pressure refrigerant, and the head of the second sliding sheet 22 is also at a low pressure, so that the second sliding sheet 22 retreats into the second sliding sheet groove 221 under the action of the tension spring, and the first cylinder 11, namely the low-pressure cylinder, is not separated at this time, and the discharge capacity is the maximum. After the first stage compression is completed, the air enters the partition cavity through the first air outlet 43 of the air cylinder and the air outlet of the partition, and then participates in the second stage compression.

When the compressor is applied to the intermediate cooling condition, the second solenoid valve 72 is closed, and the first solenoid valve 71 and the third solenoid valve 73 are opened. The control mechanism controls the force application channel 3 to suck high-pressure refrigerant, at the moment, the head of the second sliding piece 22 is in medium pressure, so that the high pressure can overcome the tension of the tension spring to enable the sliding piece to abut against the roller, the first air cylinder 11, namely the low-pressure cylinder, is divided into a first compression chamber 111 and a second compression chamber 112, and after the first compression chamber 111 completes first-stage compression, first-stage exhaust enters the partition plate cavity through the first exhaust port 43 to participate in second-stage compression.

The refrigerant passing through the middle pressure member enters the second compression chamber 112, and after compression, the high pressure refrigerant enters the housing through the second exhaust port 44. The partition plate is provided with a second air supplement port 42 which sucks the medium-pressure refrigerant from the flash evaporator 63, mixes the medium-pressure refrigerant with the first cylinder 11, namely the first-stage exhaust gas of the low-pressure cylinder, and then enters high-pressure compression.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown, but is to be accorded the widest scope consistent with the principles and spirit of the present invention. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.