Pump body structure, compressor and air conditioner applying same

Abstract

The application discloses a pump body structure, a compressor and an air conditioner applying the same. The pump body structure comprises a gas compression cylinder, a liquid pumping cylinder and a partition plate assembly between the gas compression cylinder and the liquid pumping cylinder. The gas compression cylinder is provided with a gas passage for the circulation of gaseous refrigerant. The liquid pumping cylinder is provided with a liquid passage. The partition plate assembly is provided with a liquid flow cavity. The liquid passage is communicated with the liquid flow cavity and used for the circulation of liquid refrigerant. In this way, the pump body structure can distinguish different forms of refrigerant, so that the performance of the pump body structure is not affected after the liquid refrigerant and the gaseous refrigerant are mixed and compressed. The compressor provided in the embodiment applies the pump body structure, and the gas compression cylinder and the liquid pumping cylinder are arranged, so that the liquid suction of the compressor is effectively avoided during the operation of the light load working condition, and the liquid impact hazard is avoided.

Description

Technical Field

[0001] This invention belongs to the field of air conditioner technology, and relates to a pump body structure, a compressor, and an air conditioner using the same. Background Technology

[0002] Traditional rolling rotor compressors are mostly designed as high back-pressure compressors. High back-pressure compressors feature an external distributor at the gas intake to separate the gas-liquid mixture from the evaporator, preventing liquid slugging during compression within the cylinder and ensuring compressor stability and reliability. However, even with a distributor, the compressor's operating conditions vary depending on the user, making gas-liquid separation difficult under certain circumstances. For example, in light-load cooling conditions, due to low suction temperatures, a large amount of liquid refrigerant from the evaporator is drawn into the compressor pump via the distributor during low-frequency operation. This results in severe liquid carryover during suction, reducing heat exchange efficiency, decreasing cooling capacity, and causing liquid slugging. This can lead to crankshaft distortion, bearing failure, and reduced compressor reliability.

[0003] With societal development, people have increasingly higher demands for refrigeration equipment and wider operating ranges for refrigeration compressors. These compressors need to comply with global low-carbon and energy-saving strategies while also adapting to all operating conditions. How to reduce liquid carryover during low-frequency operation of rolling rotor compressors under light-load conditions and low suction superheat is a pressing issue in the field of rolling rotor compressors. Summary of the Invention

[0004] In view of this, the present invention provides a pump body structure, a compressor, and an air conditioner using the same, which solves the problem of liquid carryover during air intake in traditional compressors, thereby ensuring the reliability of the compressor.

[0005] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides a pump body structure, the pump body structure including a gas compression cylinder, a liquid pumping cylinder, and a partition assembly located between the gas compression cylinder and the liquid pumping cylinder; the gas compression cylinder has a gas channel for the flow of vaporized refrigerant, the liquid pumping cylinder has a liquid channel, the partition assembly has a liquid flow chamber, and the liquid channel communicates with the liquid flow chamber for the flow of liquid refrigerant.

[0006] In some embodiments, the pump body structure further includes an upper flange disposed above the gas compression cylinder, the upper flange having a gas outlet that communicates with the gas passage.

[0007] In some embodiments, the gas passage includes a gas inlet that is radially opened along the gas compression cylinder and communicates with the gas outlet.

[0008] In some embodiments, a valve plate and a baffle are provided at the gas outlet, the baffle covers the valve plate, one end of the valve plate and one end of the baffle are fixedly connected, and the other end of the baffle can be bent relative to the valve plate to realize the opening and closing of the gas outlet.

[0009] In some embodiments, the baffle assembly includes an upper baffle and a lower baffle, which, when engaged, form the liquid flow chamber.

[0010] In some embodiments, the liquid channel includes a liquid inlet radially formed along the liquid pumping cylinder and a liquid flow channel formed along the inner surface of the liquid pumping cylinder. The lower partition has a liquid flow hole and a liquid outlet. The liquid inlet, the liquid flow channel, the liquid flow hole, the liquid flow chamber, and the liquid outlet are connected in sequence.

[0011] In some embodiments, the angle C between the line connecting the liquid flow hole and the center of the lower partition and the line connecting the liquid outlet and the center of the lower partition satisfies: 160°≤C≤200°.

[0012] In some embodiments, the pump body structure further includes a crankshaft having an upper eccentric portion and a lower eccentric portion, which are respectively disposed within the gas compression cylinder and the liquid pumping cylinder. An upper roller is provided outside the upper eccentric portion, and a lower roller is provided outside the lower eccentric portion. The upper roller and the lower roller are respectively connected to corresponding upper and lower sliding vanes. A control module is provided at the upper sliding vane, which can control the radial sliding of the upper sliding vane, thereby enabling the gas compression cylinder to operate or not operate.

[0013] In some embodiments, the control module includes a slide bottom hole and a pin disposed at the bottom of the upper slide. The upper partition has an air passage, and the pin is disposed in the air passage. The air passage is connected to high-pressure gas through a connecting pipe, and the connecting pipe has a solenoid valve for controlling the opening and closing of the connecting pipe. The high-pressure gas enables the pin to rise and engage with the slide bottom hole for fixation.

[0014] In some embodiments, the angle between the line connecting the liquid inlet and the center of the liquid pumping cylinder and the line connecting the slide plate and the center of the liquid pumping cylinder is 25°.

[0015] And / or the angle between the line connecting the liquid flow channel and the center of the liquid pumping cylinder and the line connecting the slide plate and the center of the liquid pumping cylinder is 20°;

[0016] The liquid inlet and the liquid flow channel are located on both sides of the sliding plate, and are arranged sequentially in a clockwise direction with the sliding plate as the base point.

[0017] According to another aspect of this application, embodiments of the present invention provide a compressor comprising the pump body structure described above.

[0018] According to another aspect of this application, an embodiment of the present invention provides an air conditioner including the compressor described above.

[0019] Compared with the prior art, the pump body structure of the present invention has at least the following beneficial effects:

[0020] The pump structure provided by this invention includes a gas compression cylinder, a liquid pumping cylinder, and a baffle assembly located between the gas compression cylinder and the liquid pumping cylinder. The gas compression cylinder has a gas channel for the flow of vaporized refrigerant, the liquid pumping cylinder has a liquid channel, and the baffle assembly has a liquid flow chamber. The liquid channel and the liquid flow chamber are connected for the flow of liquid refrigerant. Specifically, the gas compression cylinder, the baffle assembly, and the liquid pumping cylinder are arranged sequentially from top to bottom. The gas compression cylinder has a gas channel for the flow of vaporized refrigerant, and the baffle assembly and the liquid pumping cylinder together form a channel for the flow of liquid refrigerant. This arrangement allows the pump structure to distinguish between different forms of refrigerant, preventing the mixing and compression of liquid and vaporized refrigerant from affecting the performance of the pump structure.

[0021] The compressor provided by this invention is designed based on the above-described pump body structure, and its beneficial effects are the same as those of the above-described pump body structure, which will not be repeated here.

[0022] In addition, when the pump structure provided in this embodiment is applied to a compressor, the traditional compressor's distributor is difficult to separate gas and liquid. For example, in the light-load cooling condition of an air conditioner, due to the low suction temperature, a large amount of liquid refrigerant from the evaporator is drawn into the compressor pump body through the distributor during low-frequency operation. This results in severe liquid carryover during suction, reducing the air conditioner's heat exchange efficiency and causing a decrease in the compressor's cooling capacity. It can also cause liquid slugging, leading to crankshaft distortion and bearing failure, thus reducing the compressor's reliability. However, the pump structure provided in this embodiment, by setting up a gas compression cylinder and a liquid pumping cylinder, effectively avoids liquid carryover during compressor suction in light-load operation, thus preventing the liquid slugging hazards caused by the compressor.

[0023] The air conditioner provided by this invention is designed based on the above-mentioned compressor, and its beneficial effects are the same as those of the above-mentioned compressor, which will not be repeated here.

[0024] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a cross-sectional view of a pump body structure provided in an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A cross-sectional view along the AA direction;

[0028] Figure 3 yes Figure 1 Cross-sectional view along the BB direction;

[0029] Figure 4 This is an exploded view of a pump body structure provided in an embodiment of the present invention;

[0030] Figure 5 This is a cross-sectional view of a pump body structure with the control module in the open state, provided by an embodiment of the present invention;

[0031] Figure 6 This is a cross-sectional view of a pump body structure with the control module in the off state, provided by an embodiment of the present invention;

[0032] Figure 7 This is a cross-sectional view of an exhaust module in a pump body structure provided by an embodiment of the present invention;

[0033] Figure 8 This is a cross-sectional view of the lower baffle in a pump body structure provided by an embodiment of the present invention;

[0034] Figure 9 This is a cross-sectional view of a compressor provided in an embodiment of the present invention;

[0035] Figure 10 This is a refrigeration cycle diagram of an air conditioner provided in an embodiment of the present invention;

[0036] Figure 11This is a refrigeration cycle diagram of an air conditioner in cooling mode, provided by an embodiment of the present invention;

[0037] Figure 12 This is a refrigeration cycle diagram of an air conditioner in energy-saving mode, provided by an embodiment of the present invention.

[0038] in:

[0039] 1. Compressor; 11. Gas compression cylinder; 12. Liquid pumping cylinder; 13. Baffle assembly; 14. Flange; 15. Crankshaft; 16. Roller; 17. Vane; 18. Control module; 19. Silencer; 111. Gas inlet; 121. Liquid inlet; 122. Liquid flow channel; 131. Upper baffle; 132. Lower baffle; 133. Liquid flow hole; 134. Liquid outlet; 141. Upper flange; 142. Lower flange; 151. Upper eccentric part; 152. Lower eccentric part; 143. Gas outlet; 144. Valve plate; 145. Baffle; 146. Rivet; 161. Upper roller; 162. Lower roller; 171. Upper vane; 172. Lower vane; 181. Vane bottom hole; 182. Pin; 183. Gas passage; 19. Upper silencer;

[0040] 2. Evaporator; 21. Liquid refrigerant chamber; 22. Vapor refrigerant chamber;

[0041] 3. Condenser;

[0042] 4. Throttling device;

[0043] 5. Shell;

[0044] 6. Exhaust pipe. Detailed Implementation

[0045] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0046] In the description of this invention, it should be clearly stated that the terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," "horizontal," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are merely for the convenience of describing this invention, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this invention.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Example 1

[0049] This embodiment provides a pump body structure, such as Figure 1-8 As shown, the pump body structure includes a gas compression cylinder 11, a liquid pumping cylinder 12, and a partition assembly 13 located between the gas compression cylinder 11 and the liquid pumping cylinder 12; the gas compression cylinder 11 has a gas channel for the flow of gaseous refrigerant, the liquid pumping cylinder 12 has a liquid channel, the partition assembly 13 has a liquid flow chamber, and the liquid channel and the liquid flow chamber are connected for the flow of liquid refrigerant.

[0050] Specifically, the gas compression cylinder 11, the baffle assembly 13, and the liquid pumping cylinder 12 are arranged sequentially from top to bottom; the gas compression cylinder 11 has a gas passage for the flow of gaseous refrigerant, and the baffle assembly 13 and the liquid pumping cylinder 12 together form a passage for the flow of liquid refrigerant. This arrangement allows the pump body structure to distinguish between different forms of refrigerant, avoiding the impact on the performance of the pump body structure after the liquid and gaseous refrigerants are mixed and compressed.

[0051] When the pump structure provided in this embodiment is applied to a compressor, traditional compressor distributors struggle to separate gas and liquid. For example, in light-load cooling conditions, due to the low suction temperature, a large amount of liquid refrigerant from the evaporator is drawn into the compressor pump body through the distributor during low-frequency operation. This results in severe liquid carryover during suction, reducing the air conditioner's heat exchange efficiency and causing a decrease in the compressor's cooling capacity. Furthermore, liquid slugging can occur, leading to crankshaft distortion, bearing failure, and reduced compressor reliability. However, the pump structure provided in this embodiment, by incorporating a gas compression cylinder 11 and a liquid pumping cylinder 12, effectively avoids liquid carryover during compressor suction and the resulting liquid slugging hazards during light-load operation.

[0052] In a specific embodiment, such as Figure 4 As shown, the pump body structure also includes an upper flange 141 disposed above the gas compression cylinder 11, the upper flange 141 having a gas outlet 143, the gas outlet 143 being connected to the gas passage.

[0053] Specifically, the upper flange 141 is fitted with the gas compression cylinder 11. The vaporized refrigerant enters the upper flange 141 after passing through the gas passage in the gas compression cylinder 11. In order to realize the flow of vaporized refrigerant, the upper flange 141 is provided with a flow hole structure. The vaporized refrigerant that passes through the gas passage enters the flow hole structure of the upper flange 141 and is discharged. In addition, in order to reduce the noise generated during the flow process, an upper silencer 19 is provided above the upper flange 141. The vaporized refrigerant that passes through the flow hole structure enters the upper silencer 19 and is discharged from the hole above the upper silencer 19.

[0054] In addition, corresponding to the upper flange 141 and the upper silencer 19, a lower flange 142 is provided below the liquid pumping cylinder 12, and a lower silencer is provided below the lower flange 142.

[0055] The upper flange 141 and the lower flange 142 together form flange 14, providing support and connection for the pump body structure. The upper silencer 19 and the lower silencer together form a silencer, which can reduce the noise generated by the pump body structure.

[0056] In a specific embodiment, such as Figure 4 As shown, the gas passage includes a gas inlet 111 that is radially opened along the gas compression cylinder 11, and the gas inlet 111 is connected to the gas outlet 143.

[0057] In this embodiment, the gas compression cylinder 11 is an independent compression cylinder, which forms a chamber by the outer circular wall of the upper roller 161, the inner circular wall of the gas compression cylinder 11, the plane of the upper flange 141, and the plane of the upper partition 131. A gas inlet 111 is provided radially on the gas compression cylinder 11, and a gas outlet 143 is provided on the plane of the upper flange 141. With the cooperation of the upper sliding plate 171 and the upper roller 161, the chamber is divided into two parts, namely a gas inlet chamber and a gas outlet chamber. As the upper roller 161 rotates, the gas inlet chamber gradually increases in size, and a negative pressure is formed in the chamber. The gaseous refrigerant is drawn in through the gas inlet 111, and the volume of the gas outlet chamber gradually decreases. The gaseous refrigerant is compressed into high temperature and high pressure and discharged from the gas outlet 143 of the upper flange 141 through the upper silencer 19 into the housing 5, and finally discharged through the compressor exhaust pipe 6, thereby realizing the compression cycle of refrigeration.

[0058] In a specific embodiment, such as Figure 7 As shown, a valve plate 144 and a baffle 145 are provided at the gas outlet 143. The baffle 145 covers the valve plate 144, and one end of the valve plate 144 and one end of the baffle 145 are fixedly connected. The other end of the baffle 145 can be bent relative to the valve plate 144 to realize the opening and closing of the gas outlet 143.

[0059] Specifically, an exhaust module is provided at the gas outlet 143. The exhaust module includes the valve plate 144 and the baffle 145 mentioned above. The valve plate 144 and the baffle 145 are installed in sequence at the gas outlet 143. One end of the valve plate 144 and the baffle 145 are fixed to the upper flange 141 by rivets 146.

[0060] In addition, the valve plate 144 is made of steel sheet and is normally in a straight state, pressing against the gas outlet 143. If high-pressure gas is discharged, the valve plate 144 bends, causing the gas outlet 143 to open and exhaust gas, thus controlling the opening and closing of the gas outlet 143. The baffle 145 is locked onto the valve plate 144 to limit the bending angle and height of the valve plate 144, serving as a limiting device.

[0061] In a specific embodiment, the partition assembly 13 includes an upper partition 131 and a lower partition 132, which, when combined, form the liquid flow cavity. More specifically, the upper partition 131 has a generally plate-like structure, and the lower partition 132 has a certain height and a cavity. The cavity of the lower partition 132, when combined with the upper partition 131, forms the liquid flow cavity.

[0062] The upper partition 131 is disposed between the gas compression cylinder 11 and the lower partition 132 to separate the gas compression cylinder 11 from the liquid flow chamber, and plays a separating role. The inner circle of the upper partition 131 and the intermediate shaft section of the crankshaft 15 form a pair of supporting shafts, and the upper partition 131 also has an intermediate supporting role. The thickness of the lower partition 132 of the liquid flow chamber is greater than that of the upper partition 131, which facilitates the setting of the liquid outlet 134 in the radial direction of the lower partition 132.

[0063] In a specific embodiment, the liquid channel includes a liquid inlet 121 radially opened along the liquid pumping cylinder 12, a liquid flow channel 122 disposed along the inner surface of the liquid pumping cylinder 12, a liquid flow hole 133 and a liquid outlet 134 opened on the lower partition 132, and the liquid inlet 121, the liquid flow channel 122, the liquid flow hole 133, the liquid flow chamber and the liquid outlet 134 are sequentially connected.

[0064] In this embodiment, in the liquid pumping cylinder 12, the outer circular wall of the lower roller 162, the inner circular wall of the liquid pumping cylinder 12, the plane of the lower partition 132, and the plane of the lower flange 142 form a chamber. The liquid pumping cylinder 12 is provided with a radial liquid inlet 121 and a liquid flow channel 122 for connecting the liquid flow chamber is provided on the inner circular wall of the liquid pumping cylinder 12. The plane of the lower partition 132 is provided with a liquid flow hole 133. With the cooperation of the lower slide plate 172 and the lower roller 162, the chamber is divided into two parts, namely a liquid inlet chamber and a liquid outlet chamber. As the lower roller 162 rotates, the liquid inlet chamber gradually increases in size, and a negative pressure is formed in the chamber, so liquid refrigerant is drawn in. The volume of the liquid outlet chamber gradually decreases, and the liquid refrigerant is gradually discharged from the liquid flow channel 122. It enters the liquid flow chamber through the liquid flow hole 133 of the lower partition 132 and is discharged at the radial liquid outlet 134 of the lower partition 132, thereby realizing the circulation pumping of liquid refrigerant.

[0065] In a specific embodiment, the included angle C between the line connecting the center of the liquid flow hole 133 and the center of the lower partition 132 and the line connecting the center of the liquid outlet 134 and the center of the lower partition 132 satisfies: 160°≤C≤200°.

[0066] In this embodiment, the liquid pumping cylinder 12 cooperates with the liquid flow chamber. To enable independent delivery of the liquid refrigerant, the liquid flow hole 133 of the lower partition 132 is unobstructed, which can stably deliver the liquid refrigerant. The liquid refrigerant enters the liquid flow chamber through the liquid pumping cylinder 12, and the liquid outlet 134 is located at 160°-200° relative to the liquid flow hole 133, which allows the liquid refrigerant to flow fully into the liquid flow chamber, exchange heat with the gas compression cylinder 11, and achieve a cooling effect. The exhaust temperature is controlled by the liquid refrigerant. The circulation of the liquid refrigerant in the pump body can directly reduce the exhaust temperature, increase the cooling capacity, and cool the intermediate support, thereby improving the reliability of the compressor.

[0067] In a specific embodiment, the pump body structure further includes a crankshaft 15, such as... Figure 2 and Figure 3 As shown, the crankshaft 15 has an upper eccentric portion 151 and a lower eccentric portion 152, which are respectively disposed in the gas compression cylinder 11 and the liquid pumping cylinder 12. The upper eccentric portion 151 has an upper roller 161, and the lower eccentric portion 152 has a lower roller 162. The upper roller 161 and the lower roller 162 are respectively connected to the corresponding upper sliding plate 171 and lower sliding plate 172. A control module 18 is provided at the upper sliding plate 171, which can control the radial sliding of the upper sliding plate 171, so that the gas compression cylinder 11 can work or not work.

[0068] With the increasing demand for compressors in computer rooms, cooling is required all year round. For example, when the outdoor temperature is lower than the indoor temperature in winter, there are abundant cold sources in nature. Natural cooling can be used reasonably, which has a good energy-saving effect. It not only saves users a lot of electricity bills, but also conforms to the global low-carbon and energy-saving strategy. Therefore, the pump body structure provided in this embodiment is equipped with a control module 18 at the upper sliding vane 171, which can control the radial sliding of the upper sliding vane 171. This allows the pump body structure provided in this embodiment to have two operating modes: one is a cooling mode in which the gas compression cylinder 11 and the liquid pumping cylinder 12 work together, and the other is an energy-saving mode in which only the liquid pumping cylinder 12 works.

[0069] In a specific embodiment, such as Figure 5 and Figure 6 As shown, the control module 18 includes a slide bottom hole 181 and a pin 182 disposed at the bottom of the upper slide 171. The upper partition 131 has an air passage 183. The pin 182 is disposed in the air passage 183. The air passage is connected to high-pressure gas through a connecting pipe. The connecting pipe has a solenoid valve for controlling the opening and closing of the connecting pipe. The high-pressure gas can cause the pin 182 to rise and engage with the slide bottom hole 181 for fixation.

[0070] The control module 18 operates as follows: It consists of a sliding plate bottom hole 181 and a pin 182. The pin 182 is located within a channel hole on the upper partition plate 131. The bottom of the channel hole connects to external high-pressure gas. A solenoid valve is installed on the connecting pipe to control the flow of high-pressure gas. By controlling the solenoid valve, high-pressure gas is connected, entering the gas passage and causing the pin 182 to move upwards. The sliding plate has a bottom hole 181 at its bottom. The upward movement of the pin 182 engages the upper sliding plate 171, stopping its radial reciprocating motion and thus controlling the upper sliding plate 171. When the solenoid valve is closed, the high pressure is disconnected, and the pin 182 moves downwards due to its own weight, causing the upper sliding plate 171 to resume its movement.

[0071] When the compressor meets the refrigeration needs in winter, the upper sliding vane 171 in the gas compression cylinder 11 is kept in a contracted state by controlling the gas compression cylinder 11 to not compress, which is equivalent to stopping the gas compression cylinder 11. The liquid pumping cylinder 12 is kept running, which drives the refrigerant in the refrigeration unit to be naturally cooled by the condenser, and then enters the evaporator 2 to exchange heat with the environment through the throttling device 4, and finally returns to the compressor 1 to form a refrigeration cycle.

[0072] Cooling mode: such as Figure 11 As shown, the gas compression cylinder 11 and the liquid pumping cylinder 12 work together. In summer, the computer room air conditioner starts the cooling cycle. The gaseous refrigerant enters the gas compression cylinder 11 and works, while the liquid refrigerant enters the liquid pumping cylinder 12. This working mode avoids the operation of the air conditioner with liquid in the intake, ensuring the reliability of the compressor and achieving uninterrupted operation of the computer room air conditioner throughout the year.

[0073] Energy-saving mode: such as Figure 12 As shown, the liquid pump cylinder 12 is in operation. When the outdoor temperature is lower than the set point, the gas compression cylinder 11 is shut down by the control module 18, and the liquid pump cylinder 12 is automatically switched to energy-saving operation to ensure the safe and reliable operation of the computer room air conditioner throughout the year.

[0074] The specific principle is as follows: When the outdoor temperature is lower than the set point, similar to the cooling demand in winter, where the outside temperature is still lower than the indoor temperature, it is only necessary to promote the circulation of refrigerant in the refrigeration unit. The control module 18 controls the upper vane 171 in the gas compression cylinder 11 to remain in a contracted state, preventing compression and effectively disabling the gas compression cylinder. The liquid pumping cylinder 12 remains operational, drawing liquid refrigerant into the suction chamber through the liquid inlet 121. The liquid refrigerant is then transported to the liquid flow channel 122 by the rotation of the lower roller 162, and then enters the intermediate chamber through the liquid flow holes of the lower partition 132. Finally, it is discharged through the radial liquid outlet 134 on the lower partition 132, naturally cooled by the condenser 3, and then passes through the throttling device 4 before entering the evaporator 2 to exchange heat with the outside environment, finally returning to the compressor 1. This refrigeration cycle requires only low-frequency pumping by the compressor, resulting in excellent energy efficiency. This not only saves users a significant amount of electricity but also aligns with global low-carbon and energy-saving strategies.

[0075] In a specific embodiment, such as Figure 2 As shown, the angle between the line connecting the center of the liquid inlet 121 and the center of the liquid pumping cylinder 12 and the line connecting the lower slide plate 172 and the center of the liquid pumping cylinder 12 is 25°.

[0076] like Figure 2 As shown, the angle between the line connecting the center of the liquid flow channel 122 and the center of the liquid pumping cylinder 12 and the line connecting the lower slide plate 172 and the center of the liquid pumping cylinder 12 is 20°.

[0077] The liquid inlet 121 and the liquid flow channel 122 are located on both sides of the sliding plate 172, and are arranged in a clockwise direction with the sliding plate 172 as the base point.

[0078] Specifically, the liquid inlet 121 is set at a clockwise 25° angle to the sliding plate 172. Since the diameter of the liquid inlet 121 is generally 23mm, setting the liquid inlet 121 at a clockwise 25° position ensures that the inner circular wall of the liquid inlet 121 and the sliding plate 172 groove wall thickness are within the machining limit of 2mm. On the other hand, the angle affects the gas expansion in the suction chamber before suction begins. The larger the angle, the lower the gas pressure in the volume, which affects the suction of the compression chamber. Therefore, setting it to 25° is the most suitable.

[0079] Specifically, the liquid flow channel of the lower cylinder is set at 20° counterclockwise. On the one hand, 20° counterclockwise meets the requirement that the minimum machining dimension of the arc-shaped opening and the edge of the sliding vane groove is 2mm. On the other hand, if the angle is larger, the clearance between the arc-shaped opening and the edge of the sliding vane groove will be larger, which will cause another problem: after the exhaust is closed, a recompression problem will occur, and the gas pressure in the working chamber will rise sharply and exceed the exhaust pressure. Therefore, setting it at 20° counterclockwise is the most suitable.

[0080] Example 2

[0081] This embodiment provides a compressor, such as Figure 9 As shown, the compressor includes the pump body structure described in Example 1.

[0082] Example 3

[0083] This embodiment provides an air conditioner, which includes the compressor 1 described in Embodiment 2.

[0084] In a specific embodiment, such as Figure 10-12 As shown, the air conditioner also includes an evaporator 2, a condenser 3, and a throttling device 4. The evaporator 2 has a liquid refrigerant chamber 21 and a vapor refrigerant chamber 22. The liquid refrigerant chamber 21 is connected to the inlet of the liquid pumping cylinder 12, and the vapor refrigerant chamber 22 is connected to the inlet of the gas compression cylinder 11. The outlets of the gas compression cylinder 11 and the liquid pumping cylinder 12 are both connected to the condenser 3. The condenser 3 is connected to the inlet of the evaporator 2 through the throttling device 4.

[0085] The air conditioner has a circulation loop for refrigerant circulation and consists of a condenser 3, a throttling device 4, an evaporator 2, and the aforementioned compressor 1. The evaporator 2 has a liquid refrigerant chamber 21 and a vapor refrigerant chamber 22; the upper chamber is the vapor refrigerant chamber 22, and the lower chamber is the liquid refrigerant chamber 21. The compressor 1 is located between the condenser 3 and the evaporator 2. The compressor 1 has two suction paths, one of which is a vapor refrigerant suction path connected to the gas intake port 111 of the gas compression cylinder 11, and the other end of the suction path is connected to the vapor refrigerant chamber 22 of the evaporator 2. Another liquid refrigerant suction path is connected to the liquid suction port 121 radially arranged in the liquid pump cylinder 12, and the other end of the suction path is connected to the liquid refrigerant chamber 21 of the evaporator 2; in addition, the compressor has two discharge paths, one of which is the compression discharge pipe 6, which is set on the housing 5, and the other end is connected to the condenser 3; the other is the liquid discharge pipe, which is connected to the radial liquid discharge port 134 opened on the lower partition 132 of the compressor intermediate cavity, and the other end is connected to the condenser 3.

[0086] The compressor's compression chamber consists of a crankshaft 15, a gas compression cylinder 11, a liquid pumping cylinder 12, rollers 16, an upper flange 141, a partition assembly 13, and vanes 17. The eccentric portion of the crankshaft 15 is mounted in series within the corresponding cylinder; the rollers 16 are mounted on the eccentric portion of the crankshaft 15; the vanes 17 are positioned in the vane slots of the cylinder, one end constantly compressed by a spring component, and the other end in contact with the outer wall of the rollers 16. Within the cylinder, the rollers 16 and vanes 17 form a compression chamber. As the crankshaft 15 rotates, the rollers 16 rotate eccentrically, causing the compression chamber within the cylinder to repeatedly expand and contract. When the compression chamber expands, refrigerant entering from the suction port is drawn into the compression chamber. Simultaneously, the rotation of the crankshaft 15 compresses the refrigerant through the contraction of the compression chamber. When the refrigerant pressure reaches a certain level (discharge pressure), the refrigerant within the cylinder is discharged through the upper flange gas discharge port via the discharge port. The cylinders mentioned above refer to the gas compression cylinder 11 and the liquid pumping cylinder 12.

[0087] The gaseous refrigerant in the upper chamber of evaporator 2 is drawn into the gas compression cylinder 11 of the compressor, compressed into a high-temperature and high-pressure gaseous state, and discharged from the gas outlet 143 of the upper flange 141. It then passes through the upper silencer 19 into the housing 5, and is discharged from the upper exhaust pipe 6 of the compressor 1 into the condenser 3. Meanwhile, the liquid refrigerant in the lower chamber of evaporator 2 is drawn into the liquid pumping cylinder 12 of the compressor, pumped through the cylinder to the liquid flow channel 122 of the lower cylinder, and transported from the liquid flow hole 133 of the lower partition 132 to the intermediate chamber. Finally, it flows from the radial liquid outlet 134 of the lower partition 132 into the condenser 3. The gaseous and liquid refrigerants mix in the condenser 3, and become a low-temperature and high-pressure gas-liquid mixed refrigerant. After passing through the throttling device 4 to reduce the pressure, it enters the evaporator 2 to exchange heat with the environment, and finally forms a new refrigeration cycle.

[0088] In summary, it is readily understood by those skilled in the art that, without conflict, the aforementioned advantageous technical features can be freely combined and superimposed.

[0089] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A pump body structure, characterized in that, The pump body structure includes a gas compression cylinder, a liquid pumping cylinder, and a partition assembly located between the gas compression cylinder and the liquid pumping cylinder; the gas compression cylinder has a gas channel for the flow of gaseous refrigerant, the liquid pumping cylinder has a liquid channel, the partition assembly has a liquid flow chamber, and the liquid channel and the liquid flow chamber are connected for the flow of liquid refrigerant. The pump body structure also includes a crankshaft, which has an upper eccentric part and a lower eccentric part. The upper eccentric part and the lower eccentric part are respectively disposed in the gas compression cylinder and the liquid pumping cylinder. An upper roller is provided outside the upper eccentric part, and a lower roller is provided outside the lower eccentric part. The upper roller and the lower roller are respectively connected to the corresponding upper sliding vane and lower sliding vane. A control module is provided at the upper sliding vane. The control module can control the radial sliding of the upper sliding vane, so that the gas compression cylinder works or does not work. The control module includes a slide bottom hole and a pin disposed at the bottom of the upper slide. The partition assembly includes an upper partition and a lower partition. The upper partition has an air passage. The pin is disposed in the air passage. The air passage is connected to high-pressure gas through a connecting pipe. The connecting pipe has a solenoid valve for controlling the opening and closing of the connecting pipe. The high-pressure gas enables the pin to rise and engage with the slide bottom hole for fixation. The pump body structure has a cooling mode and an energy-saving mode. In the energy-saving mode, when the outdoor temperature is lower than the set point, the gas compression cylinder is stopped by the control module, while the liquid pumping cylinder is kept running, which drives the liquid refrigerant in the refrigeration device to be naturally cooled by the condenser.

2. The pump body structure according to claim 1, characterized in that, The pump body structure also includes an upper flange disposed above the gas compression cylinder, the upper flange having a gas outlet that communicates with the gas passage.

3. The pump body structure according to claim 2, characterized in that, The gas passage includes a gas inlet that is radially opened along the gas compression cylinder, and the gas inlet is connected to the gas outlet.

4. The pump body structure according to claim 3, characterized in that, A valve plate and a baffle are provided at the gas outlet. The baffle covers the valve plate, and one end of the valve plate and one end of the baffle are fixedly connected. The other end of the baffle can be bent relative to the valve plate to open and close the gas outlet.

5. The pump body structure according to any one of claims 1-4, characterized in that, The upper and lower partitions, when combined, form the liquid flow cavity.

6. The pump body structure according to claim 5, characterized in that, The liquid channel includes a liquid inlet radially opened along the liquid pumping cylinder and a liquid flow channel arranged along the inner surface of the liquid pumping cylinder. The lower partition plate is provided with a liquid flow hole and a liquid outlet. The liquid inlet, the liquid flow channel, the liquid flow hole, the liquid flow chamber and the liquid outlet are connected in sequence.

7. The pump body structure according to claim 6, characterized in that, The angle C between the line connecting the liquid flow hole and the center of the lower partition and the line connecting the liquid outlet and the center of the lower partition satisfies: 160°≤C≤200°.

8. The pump body structure according to claim 6, characterized in that, The angle between the line connecting the liquid inlet and the center of the liquid pumping cylinder and the line connecting the slide plate and the center of the liquid pumping cylinder is 25°. And / or the angle between the line connecting the liquid flow channel and the center of the liquid pumping cylinder and the line connecting the slide plate and the center of the liquid pumping cylinder is 20°; The liquid inlet and the liquid flow channel are located on both sides of the sliding plate, and are arranged sequentially in a clockwise direction with the sliding plate as the base point.

9. A compressor, characterized in that, The compressor includes the pump body structure as described in any one of claims 1-8.

10. An air conditioner, characterized in that, The air conditioner includes the compressor as described in claim 9.

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