Compressor and air conditioning device having the same

Abstract

The present invention provides a compressor and an air conditioning device having the same. The compressor includes a shell assembly, an upper cylinder, a middle cylinder, a lower cylinder and a middle partition, wherein the upper cylinder, the middle cylinder, the lower cylinder and the middle partition are all arranged in the shell assembly, the middle partition is arranged between the upper cylinder and the middle cylinder, and the middle partition has a middle partition accommodating chamber, and the middle partition accommodating chamber is used to receive the refrigerant compressed by the middle cylinder and the refrigerant compressed by the lower cylinder; the compressor also includes: a first intake pipe, which is connected to the upper cylinder; a first exhaust pipe, one end of the first exhaust pipe is connected to the middle partition accommodating chamber, and the other end of the first exhaust pipe is used to selectively communicate with the first intake pipe and the heat exchanger of the air conditioning device. The compressor of the present invention solves the problem that the compressor in the prior art cannot realize the switching between the single-stage operation mode and the double-stage operation mode of the multi-mode operation air conditioning device.

Description

Technical Field

[0001] The present invention relates to the field of compressors, and in particular to a compressor and an air-conditioning device having the same. Background Art

[0002] As residents' living standards improve, they have higher and higher requirements for comfort. As an important household appliance for maintaining indoor comfort, consumers are increasingly demanding air conditioners. In areas with hot summers and cold winters, the climate changes throughout the year. In order to meet people's requirements for comfort and energy saving, multi-mode air conditioners have emerged.

[0003] A multi-mode air-conditioning device needs to be equipped with a three-cylinder variable-capacity compressor. Due to the large number of operating modes and complex switching, the three-cylinder variable-capacity compressor needs to meet the switching of the single-stage operating mode and the two-stage operating mode of the multi-mode air-conditioning device.

[0004] However, the exhaust gas from the lower / middle cylinders of the three-cylinder variable capacity compressor in the prior art is directly sucked away by the upper cylinder through the internal circulation channel, so it cannot meet the requirements of switching between single-stage and double-stage operation modes. Therefore, it is urgent to develop a compressor for use in multi-mode operation air-conditioning devices. Summary of the invention

[0005] The main purpose of the present invention is to provide a compressor and an air-conditioning device having the same, so as to solve the problem that the compressor in the prior art cannot realize the switching between the single-stage operation mode and the double-stage operation mode of the multi-mode operation air-conditioning device.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a compressor is provided, including a shell assembly, an upper cylinder, a middle cylinder, a lower cylinder and a middle partition, the upper cylinder, the middle cylinder, the lower cylinder and the middle partition are all arranged in the shell assembly, the middle partition is arranged between the upper cylinder and the middle cylinder, the middle partition has a middle partition accommodating cavity, the middle partition accommodating cavity is used to receive the refrigerant compressed by the middle cylinder and the refrigerant compressed by the lower cylinder; the compressor also includes: a first intake pipe, connected to the upper cylinder; a first exhaust pipe, one end of the first exhaust pipe is connected to the middle partition accommodating cavity, and the other end of the first exhaust pipe is used to selectively communicate with the first intake pipe and the heat exchanger of the air-conditioning device.

[0007] Furthermore, the compressor also includes a lower flange, which is arranged below the lower cylinder. The lower flange has a lower flange accommodating chamber, which is connected to the working chamber of the lower cylinder; the lower flange accommodating chamber is connected to the middle partition accommodating chamber, so that the refrigerant in the lower flange accommodating chamber compressed by the lower cylinder can flow into the middle partition accommodating chamber.

[0008] Furthermore, the compressor also includes a lower partition, which is arranged between the lower cylinder and the middle cylinder; a first flow channel is arranged on the lower cylinder, a second flow channel is arranged on the lower partition, a third flow channel is arranged on the middle cylinder, a fourth flow channel is arranged on the middle partition, and a fifth flow channel is arranged on the lower flange; the first flow channel, the second flow channel, the third flow channel, the fourth flow channel and the fifth flow channel are interconnected to form an intermediate flow channel, one end of the intermediate flow channel is connected to the middle partition accommodating chamber, and the other end of the intermediate flow channel is connected to the lower flange accommodating chamber.

[0009] Further, the middle flow channel extends in the vertical direction.

[0010] Furthermore, the middle partition plate accommodating chamber is communicated with the working chamber of the middle cylinder.

[0011] Furthermore, an exhaust channel is provided on the middle partition, one end of the exhaust channel is connected to the middle partition accommodating cavity, and the other end of the exhaust channel is connected to the first exhaust pipe.

[0012] Furthermore, the compressor also includes: a first connecting pipe, one end of which is connected to an end of the first exhaust pipe away from the middle partition accommodating cavity, and the other end of the first connecting pipe is used to connect to the heat exchanger; a first control valve is arranged on the first connecting pipe to control the opening and closing of the first connecting pipe.

[0013] Furthermore, the compressor also includes: a first liquid distributor assembly, the first liquid distributor assembly having a first inlet and a first outlet, the first outlet being connected to one end of the first intake pipe away from the upper cylinder; a second connecting pipe, one end of the second connecting pipe being connected to one end of the first exhaust pipe away from the middle partition accommodating cavity, and the other end of the second connecting pipe being connected to the first inlet; and a second control valve being arranged on the second connecting pipe to control the on and off of the second connecting pipe.

[0014] Furthermore, the compressor also includes: a third connecting pipe, one end of which is used to inhale the refrigerant to be compressed, and the other end of the third connecting pipe is connected to the first inlet; a third control valve is arranged on the third connecting pipe to control the opening and closing of the third connecting pipe.

[0015] According to another aspect of the present invention, an air conditioning device is provided, comprising a compressor, wherein the compressor is the above-mentioned compressor.

[0016] The compressor of the present invention receives the refrigerant compressed by the middle cylinder and the refrigerant compressed by the lower cylinder by setting a middle partition accommodating chamber, and sets a first exhaust pipe on the middle partition, so that the first exhaust pipe can be selectively connected with the first intake pipe and the heat exchanger of the air-conditioning device, so that the refrigerant compressed by the middle cylinder and the refrigerant compressed by the lower cylinder can be selectively passed into the first intake pipe and the heat exchanger of the air-conditioning device; when the air-conditioning device is in a single-stage operation mode, the refrigerant compressed by the middle cylinder and the refrigerant compressed by the lower cylinder are directly passed into the heat exchanger; when the air-conditioning device is in a two-stage operation mode, the refrigerant compressed by the middle cylinder and the refrigerant compressed by the lower cylinder are passed into the upper cylinder through the first intake pipe for continued compression. The compressor realizes the switching between the single-stage operation mode and the two-stage operation mode of the multi-mode operation air-conditioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of an embodiment of a compressor according to the present invention is shown;

[0019] Figure 2 shows a top view of an embodiment of a compressor according to the present invention;

[0020] Figure 3 A cross-sectional view showing a first angle of a compressor according to the present invention;

[0021] Figure 4 A second angled cross-sectional view of a compressor according to the present invention is shown;

[0022] Figure 5 A schematic structural diagram of a middle diaphragm of a compressor according to the present invention is shown;

[0023] Figure 6 A cross-sectional view of a middle diaphragm of a compressor according to the present invention is shown;

[0024] Figure 7 A schematic diagram showing a compressor according to the present invention when used in an air conditioning device in a single-stage operation mode;

[0025] Figure 8 A schematic diagram is shown when the compressor according to the present invention is used in an air conditioning device in a two-stage operation mode.

[0026] The above drawings include the following reference numerals:

[0027] 10. Shell assembly; 20. Upper cylinder; 30. Middle cylinder; 40. Lower cylinder; 50. Middle baffle; 51. Middle baffle accommodating chamber; 52. Fourth flow channel; 53. Exhaust channel; 60. First suction pipe; 70. First exhaust pipe; 80. Lower flange; 81. Lower flange accommodating chamber; 90. Lower baffle; 100. Middle flow channel; 110. First liquid distributor assembly; 120. Second exhaust pipe; 130. Motor; 131. Rotor; 132. Stator; 140. Second suction pipe assembly; 150, first variable volume control flow path; 160, second variable volume control flow path; 170, second liquid distributor assembly; 180, upper cover assembly; 190, upper flange; 200, upper roller; 210, middle roller; 220, lower roller; 230, upper partition; 240, crankshaft; 250, lower cover; 260, lower cover plate; 270, first connecting pipe; 280, second connecting pipe; 290, first control valve; 300, second control valve; 310, third connecting pipe; 320, third control valve. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] The present invention provides a compressor, please refer to Figures 1 to 8, including a shell assembly 10, an upper cylinder 20, a middle cylinder 30, a lower cylinder 40 and a middle partition 50, the upper cylinder 20, the middle cylinder 30, the lower cylinder 40 and the middle partition 50 are all arranged in the shell assembly 10, the middle partition 50 is arranged between the upper cylinder 20 and the middle cylinder 30, the middle partition 50 has a middle partition accommodating chamber 51, the middle partition accommodating chamber 51 is used to receive the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40; the compressor also includes: a first intake pipe 60, which is connected to the upper cylinder 20; a first exhaust pipe 70, one end of the first exhaust pipe 70 is connected to the middle partition accommodating chamber 51, and the other end of the first exhaust pipe 70 is used to be selectively connected to the first intake pipe 60 and the heat exchanger of the air-conditioning device.

[0032] The compressor of the present invention receives the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 by setting a middle partition accommodating chamber 51, and sets a first exhaust pipe 70 on the middle partition 50, so that the first exhaust pipe 70 can be selectively connected with the first intake pipe 60 and the heat exchanger of the air-conditioning device, so that the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 can be selectively passed into the first intake pipe 60 and the heat exchanger of the air-conditioning device; when the air-conditioning device is in a single-stage operation mode, the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 are directly passed into the heat exchanger; when the air-conditioning device is in a two-stage operation mode, the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 are passed into the upper cylinder 20 through the first intake pipe 60 to continue to be compressed. The compressor realizes the switching between the single-stage operation mode and the two-stage operation mode of the multi-mode operation air-conditioning device.

[0033] Specifically, the compressor of the present application is a three-cylinder two-stage variable capacity compressor.

[0034] In this embodiment, the compressor also includes a lower flange 80, which is arranged below the lower cylinder 40. The lower flange 80 has a lower flange accommodating chamber 81, and the lower flange accommodating chamber 81 is connected to the working chamber of the lower cylinder 40; the lower flange accommodating chamber 81 is connected to the middle partition accommodating chamber 51, so that the refrigerant in the lower flange accommodating chamber 81 compressed by the lower cylinder 40 flows into the middle partition accommodating chamber 51.

[0035] Specifically, the refrigerant in the lower cylinder 40 is first discharged into the lower flange accommodating chamber 81 of the lower flange 80, and then flows into the middle partition accommodating chamber 51 of the middle partition 50 through the intermediate flow channel 100. The refrigerant in the middle cylinder 30 is directly discharged into the middle partition accommodating chamber 51. In this way, the lower cylinder 40 and the middle cylinder 30 converge in the middle partition accommodating chamber 51 through different flow paths, thereby reducing pressure pulsation and avoiding large disturbances.

[0036] In this embodiment, the compressor also includes a lower partition 90, which is arranged between the lower cylinder 40 and the middle cylinder 30; a first flow channel is arranged on the lower cylinder 40, a second flow channel is arranged on the lower partition 90, a third flow channel is arranged on the middle cylinder 30, a fourth flow channel 52 is arranged on the middle partition 50, and a fifth flow channel is arranged on the lower flange 80. The first flow channel, the second flow channel, the third flow channel, the fourth flow channel 52 and the fifth flow channel are interconnected to form an intermediate flow channel 100, one end of the intermediate flow channel 100 is connected to the middle partition accommodating chamber 51, and the other end of the intermediate flow channel 100 is connected to the lower flange accommodating chamber 81.

[0037] In this embodiment, the middle flow channel 100 extends in the vertical direction.

[0038] In this embodiment, the middle partition plate accommodating chamber 51 is communicated with the working chamber of the middle cylinder 30 , so that the refrigerant in the middle cylinder 30 is directly discharged into the middle partition plate accommodating chamber 51 .

[0039] In this embodiment, the middle partition plate 50 is provided with an exhaust passage 53, one end of the exhaust passage 53 is connected to the middle partition plate accommodating chamber 51, and the other end of the exhaust passage 53 is connected to the first exhaust pipe 70. Such a configuration realizes stable and reliable output of the refrigerant.

[0040] In specific implementation, the compressor further includes an upper flange 190, a motor 130 and a second exhaust pipe 120. The second exhaust pipe 120 is arranged at the top of the housing assembly 10. The upper flange is provided with an upper flange exhaust passage, so that the refrigerant compressed by the upper cylinder 20 passes through the upper flange exhaust passage and the motor 130 and is discharged from the second exhaust pipe 120. When the air conditioning device is in a single-stage operation mode, the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 are directly introduced into the heat exchanger, and the refrigerant compressed by the upper cylinder 20 is directly introduced into the heat exchanger through the second exhaust pipe 120; when the air conditioning device is in a two-stage operation mode, the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 are introduced into the upper cylinder 20 through the first suction pipe 60 for further compression, and are discharged from the second exhaust pipe 120 after compression.

[0041] In this embodiment, the compressor also includes: a first connecting pipe 270, one end of which is connected to an end of the first exhaust pipe 70 away from the middle partition accommodating chamber 51, and the other end of the first connecting pipe 270 is used to connect to the heat exchanger; a first control valve 290 is arranged on the first connecting pipe 270 to control the on and off of the first connecting pipe 270.

[0042] In this embodiment, the compressor also includes: a first liquid distributor assembly 110, the first liquid distributor assembly 110 has a first inlet and a first outlet, the first outlet is connected to the end of the first intake pipe 60 away from the upper cylinder 20; a second connecting pipe 280, one end of the second connecting pipe 280 is connected to the end of the first exhaust pipe 70 away from the middle partition accommodating cavity 51, and the other end of the second connecting pipe 280 is connected to the first inlet; a second control valve 300 is arranged on the second connecting pipe 280 to control the on and off of the second connecting pipe 280.

[0043] In this embodiment, the compressor also includes: a third connecting pipe 310, one end of the third connecting pipe 310 is used to inhale the refrigerant to be compressed, and the other end of the third connecting pipe 310 is connected to the first inlet; a third control valve 320 is arranged on the third connecting pipe to control the opening and closing of the third connecting pipe.

[0044] In specific implementation, the exhaust gas from the lower cylinder and the exhaust gas from the middle cylinder are condensed under the pressure state in the single-stage operation mode and are directly discharged to the condenser for further cooling and condensation; but when operating in the two-stage mode, the exhaust gas from the lower cylinder and the exhaust gas from the middle cylinder need to enter the upper cylinder as the secondary suction air for high-pressure stage compression before being discharged to the condenser.

[0045] Optionally, the first control valve 290 , the second control valve 300 , and the third control valve 320 are all solenoid valves.

[0046] The functions of the multi-mode air-conditioning device are as follows: in July, the humidity is relatively high and the temperature is high. The three-cylinder single-stage dual evaporation temperature operation mode (cooling and dehumidification) can be used to separate dehumidification from cooling, increase the evaporation temperature on the cooling side, reduce the pressure ratio, and improve the energy efficiency of the system; from the end of July to the beginning of September, the temperature is extremely high. At this time, the operating pressure ratio is large and the load is high. At this time, the three-cylinder two-stage air supply operation mode (cooling) can effectively decompose the pressure ratio, increase the cooling capacity, and make the system run more economical. When the load is slightly smaller, it can be switched to the two-cylinder two-stage air supply operation mode (cooling). Compared with the three-cylinder mode, increase the compressor operating frequency and reduce leakage problems; during winter heating in this area, the outdoor ambient temperature is extremely low and the load is heavy in January and February. At this time, the three-cylinder two-stage air supply operation mode (heating) can decompose the pressure ratio and increase the heating capacity. At this time, it is more energy-saving to use this system, but the load decreases after a long period of operation, and it is more energy-saving to adopt the two-cylinder two-stage air supply mode (heating). From November to December, the outdoor ambient temperature is relatively high and heating is still needed. At this time, the pressure ratio and load are relatively small, and the two-cylinder single-stage operation mode (heating) can meet the operation requirements and has higher energy efficiency.

[0047] There are many operating modes for multi-mode air conditioners. However, the first-stage exhaust gas of the three-cylinder variable displacement compressor in the prior art is directly sucked away by the second-stage compression cylinder in the internal circulation channel, which cannot meet the switching requirements of the single-stage operating mode and the two-stage operating mode of the multi-mode air conditioner. The present application proposes a compressor, in which the exhaust gas of the lower cylinder and the middle cylinder is discharged through the first exhaust pipe 70 on the middle partition, and by setting the intermediate flow channel 100, the use requirements of the single-stage operating mode and the two-stage operating mode in the multi-mode air conditioner are met.

[0048] The present application sets a first exhaust pipe 70 on the middle partition of the variable capacity compressor, and sets the intermediate flow channel 100 on the lower flange 80, the lower cylinder 40, the lower partition 90, the middle cylinder 30 and the middle partition 50, so as to avoid the exhaust of the lower cylinder and the middle cylinder being directly connected to the air intake of the upper cylinder, so that the compressor can realize the switching of single-stage and double-stage operation modes, and meet the use requirements of multi-mode operation air-conditioning devices.

[0049] In specific implementation, the compressor includes five external pipes, including an air intake pipe and an air discharge pipe, one of which is responsible for the variable capacity control of the compressor, namely the first variable capacity control flow path 150; the second variable capacity control flow path 160 is connected to the air intake of the lower cylinder and the air intake of the middle cylinder, generally an internal flow channel; the other four external pipes are the second air intake pipe assembly 140, the first air discharge pipe 70, the first air intake pipe 60 and the second air discharge pipe 120. The distribution positions of different external pipes are shown in FIG. Figure 1 and Figure 2 .

[0050] The compressor provided by this application (see Figure 3 , Figure 4 ), mainly composed of a motor 130 (including a stator 132, a rotor 131), a pump body assembly, a housing assembly, a second liquid distributor assembly 170, a first liquid distributor assembly 110, an upper cover assembly 180 and a lower cover 250, etc. Among them, the pump body assembly is mainly composed of a crankshaft 240, an upper flange 190, an upper cylinder 20, an upper roller 200, an upper partition 230, a middle partition 50, a middle cylinder 30, a middle roller 210, a lower partition 90, a lower cylinder 40, a lower roller 220, a lower flange 80 and a lower cover plate 260; a lower cylinder air intake port is arranged on the side of the lower cylinder, a middle cylinder air intake port is arranged on the side of the middle cylinder, the second air intake pipe assembly 140 is connected with the lower cylinder air intake port and the middle cylinder air intake port, a first exhaust pipe 70 is arranged on the side of the middle partition, a second exhaust pipe 120 is arranged on the upper cover assembly 180, and a first air intake pipe 60 is arranged on the side of the upper cylinder 20. The pump assembly is provided with an intermediate flow channel 100, which is provided on the lower flange 80, the lower cylinder 40, the lower baffle 90, the middle cylinder 30 and the middle baffle 50, and is connected to the first exhaust pipe 70; and the middle baffle 50 (see Figure 6) and the lower flange 80 are respectively provided with a middle partition accommodating chamber 51 and a lower flange accommodating chamber 81 for accommodating the exhaust of the lower cylinder and the middle cylinder, and the channel connecting the middle partition accommodating chamber 51 and the lower flange accommodating chamber 81 is the intermediate flow channel 100 of the refrigerant.

[0051] The working process of the compressor of the present application (specifically, a rolling rotor type variable compressor) is as follows: the motor 130 is sleeved on the crankshaft 240, and the pump body assembly is driven to operate by energizing the motor 130. The crankshaft 240 has three eccentric parts, and different rolling rotors (i.e., the upper roller 200, the middle roller 210, and the lower roller 220) are sleeved on different eccentric parts of the crankshaft 240. The roller sleeve is driven by the eccentric part to perform eccentric rotation in the working chamber of the cylinder (i.e., the working chamber of the upper cylinder 20; the working chamber of the middle cylinder 30; and the working chamber of the lower cylinder 40). The vane relies on the action of the spring to make its end close to the outer wall of the roller, and reciprocates along the vane groove as the roller rotates. The working volume formed by the roller, the vane and the cylinder is constantly changing, thereby realizing the suction, compression and exhaust process of the cylinder.

[0052] like Figure 7 As shown, when the compressor is used in an air conditioning device in a single-stage operation mode, the lower cylinder 40 and the middle cylinder 30 absorb low-temperature and low-pressure refrigerant in the second liquid distributor assembly 170, and the low-temperature and low-pressure refrigerant is compressed to a condensing pressure in the lower cylinder 40 and the middle cylinder 30. The refrigerant in the lower cylinder 40 is discharged into the lower flange accommodating chamber 81 of the lower flange 80, and then flows into the middle partition accommodating chamber 51 of the middle partition 50 through the intermediate flow channel 100; the refrigerant in the middle cylinder 30 is directly discharged into the middle partition accommodating chamber 51 of the middle partition 50, The two are mixed and discharged to the condenser (i.e., heat exchanger) of the air-conditioning device through the first exhaust pipe 70 and the first connecting pipe 270 on the side of the middle partition to further complete cooling and condensation; and the upper cylinder 20 absorbs the low-temperature and low-pressure refrigerant in the first liquid distributor assembly 110 and completes the compression process in the upper cylinder 20, and then is discharged to the shell assembly 10 through the upper flange 190, flows through the motor 130, and is discharged by the second exhaust pipe 120 on the upper cover assembly 180, thereby completing a circulation process of the refrigerant inside the compressor.

[0053] like Figure 8As shown, when the compressor is used in an air conditioning device in a two-stage operation mode, the lower cylinder 40 and the middle cylinder 30 absorb low-temperature and low-pressure refrigerant in the second liquid distributor assembly 170. After the low-temperature and low-pressure refrigerant is compressed to an intermediate pressure in the lower cylinder 40 and the middle cylinder 30, the refrigerant in the lower cylinder 40 is discharged into the lower flange receiving chamber 81 of the lower flange 80, and then flows into the middle partition receiving chamber 51 of the middle partition 50 through the middle flow channel 100; the refrigerant in the middle cylinder 30 is directly discharged The refrigerant enters the middle partition accommodating chamber 51 of the middle partition 50, mixes with each other and is discharged through the middle partition accommodating chamber 51 on the side of the middle partition, and then enters the first liquid distributor assembly 110 through the second connecting pipe 280, mixes with the medium-pressure gas flashed in the flash evaporator, and is sucked away by the upper cylinder 20. After being compressed to the condensation pressure in the upper cylinder 20, it flows through the motor 130 and is discharged through the second exhaust pipe 120 on the upper cover assembly 180. At this point, a circulation process of the refrigerant inside the compressor is completed.

[0054] in, Figure 3 The exhaust flow paths of the lower and middle cylinders in the compressor are shown; Figure 4 The suction flow path of the upper cylinder in the compressor is shown.

[0055] In this way, by setting the first exhaust pipe on the middle partition of the compressor and setting the intermediate flow channel 100 on the lower flange, lower cylinder, lower partition, middle cylinder and middle partition, the compressor can switch between single-stage and double-stage operation modes to meet the use requirements of multi-mode operation air-conditioning devices.

[0056] The present invention also provides an air conditioning device, comprising a compressor, wherein the compressor is the compressor in the above embodiment.

[0057] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0058] The compressor of the present invention receives the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 by setting a middle partition accommodating chamber 51, and sets a first exhaust pipe 70 on the middle partition 50, so that the first exhaust pipe 70 can be selectively connected with the first intake pipe 60 and the heat exchanger of the air-conditioning device, so that the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 can be selectively passed into the first intake pipe 60 and the heat exchanger of the air-conditioning device; when the air-conditioning device is in a single-stage operation mode, the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 are directly passed into the heat exchanger; when the air-conditioning device is in a two-stage operation mode, the refrigerant compressed by the middle cylinder 30 and the refrigerant compressed by the lower cylinder 40 are passed into the upper cylinder 20 through the first intake pipe 60 to continue to be compressed. The compressor realizes the switching between the single-stage operation mode and the two-stage operation mode of the multi-mode operation air-conditioning device.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compressor, comprising a housing assembly (10), an upper cylinder (20), a middle cylinder (30), a lower cylinder (40) and a middle partition (50), wherein the upper cylinder (20), the middle cylinder (30), the lower cylinder (40) and the middle partition (50) are all arranged in the housing assembly (10), and the middle partition (50) is arranged between the upper cylinder (20) and the middle cylinder (30), It is characterized in that The middle diaphragm (50) has a middle diaphragm accommodating chamber (51), and the middle diaphragm accommodating chamber (51) is used to receive the refrigerant compressed by the middle cylinder (30) and the refrigerant compressed by the lower cylinder (40); the compressor further comprises: A first air intake pipe (60) connected to the upper cylinder (20); a first exhaust pipe (70), one end of the first exhaust pipe (70) being connected to and passing through the middle partition plate accommodating chamber (51), and the other end of the first exhaust pipe (70) being selectively connected to the first intake pipe (60) and a heat exchanger of the air conditioning device; The compressor further comprises a lower flange (80), the lower flange (80) being arranged below the lower cylinder (40), the lower flange (80) having a lower flange accommodating chamber (81), the lower flange accommodating chamber (81) being in communication with the working chamber of the lower cylinder (40); the lower flange accommodating chamber (81) being in communication with the middle partition accommodating chamber (51), so that the refrigerant in the lower flange accommodating chamber (81) compressed by the lower cylinder (40) flows into the middle partition accommodating chamber (51); The compressor further comprises a lower partition (90), wherein the lower partition (90) is arranged between the lower cylinder (40) and the middle cylinder (30); a first flow channel is arranged on the lower cylinder (40), a second flow channel is arranged on the lower partition (90), a third flow channel is arranged on the middle cylinder (30), a fourth flow channel (52) is arranged on the middle partition (50), and a fifth flow channel is arranged on the lower flange (80); the first flow channel, the second flow channel, the third flow channel, the fourth flow channel (52), and the fifth flow channel are interconnected to form an intermediate flow channel (100); one end of the intermediate flow channel (100) is connected to the middle partition accommodating chamber (51), and the other end of the intermediate flow channel (100) is connected to the lower flange accommodating chamber (81).

2. The compressor according to claim 1, It is characterized in that The intermediate flow channel (100) extends in a vertical direction.

3. The compressor according to claim 1, It is characterized in that The middle partition plate accommodating chamber (51) is in communication with the working chamber of the middle cylinder (30).

4. The compressor according to claim 1, It is characterized in that An exhaust channel (53) is provided on the middle partition plate (50), one end of the exhaust channel (53) is connected to the middle partition plate accommodating cavity (51), and the other end of the exhaust channel (53) is connected to the first exhaust pipe (70).

5. The compressor according to any one of claims 1 to 4, It is characterized in that The compressor also includes: a first connecting pipe (270), one end of the first connecting pipe (270) being connected to an end of the first exhaust pipe (70) away from the middle partition plate accommodating chamber (51), and the other end of the first connecting pipe (270) being used to be connected to the heat exchanger; A first control valve (290) is provided on the first connecting pipe (270) to control the opening and closing of the first connecting pipe (270).

6. The compressor according to any one of claims 1 to 4, It is characterized in that The compressor also includes: a first liquid distributor assembly (110), the first liquid distributor assembly (110) having a first inlet and a first outlet, the first outlet being connected to an end of the first air intake pipe (60) away from the upper cylinder (20); a second connecting pipe (280), one end of the second connecting pipe (280) being connected to an end of the first exhaust pipe (70) away from the middle partition plate accommodating chamber (51), and the other end of the second connecting pipe (280) being connected to the first inlet; The second control valve (300) is arranged on the second connecting pipe (280) to control the opening and closing of the second connecting pipe (280).

7. The compressor according to claim 6, It is characterized in that The compressor also includes: a third connecting pipe (310), one end of the third connecting pipe (310) being used to inhale the refrigerant to be compressed, and the other end of the third connecting pipe (310) being connected to the first inlet; The third control valve (320) is arranged on the third connecting pipe (310) to control the on-off of the third connecting pipe (310).

8. An air conditioning device comprising a compressor, It is characterized in that The compressor is the compressor according to any one of claims 1 to 7.

Images