Compressor and heat exchange system

Abstract

The present application relates to heat exchange technical field, provide a kind of compressor and heat exchange system.The compressor includes compression mechanism and cover body, the compression mechanism is configured with first suction port, first compression cavity and second compression cavity;Cover body is sealed with the compression mechanism Connection, cover body is configured with second suction port, first exhaust port and second exhaust port;The first compression cavity is adapted to communicate with the first exhaust port, the second compression cavity is adapted to communicate with the second exhaust port, the first compression cavity is adapted to communicate with the second compression cavity, the first suction port is adapted to communicate with the second compression cavity, the second suction port is adapted to communicate with the second compression cavity, the first exhaust pressure of the first compression cavity is greater than the second exhaust pressure of the second compression cavity.The compressor presented in the present application has double exhaust and double suction function, the structure of compressor is reasonable, to help reduce the volume of compressor, improve the space utilization of heat exchange system.

Description

Technical Field

[0001] This invention relates to the field of heat exchange technology, and more particularly to compressors and heat exchange systems. Background Technology

[0002] The compressor is an important component of the refrigeration system. There are various types of compressors, such as reciprocating compressors, rotary compressors, and scroll compressors.

[0003] In the automotive sector (such as new energy vehicles), various types of compressors are used for refrigeration and heating. Improving the energy efficiency of compressors and heat exchange systems is crucial for the driving range of electric vehicles. In other applications of refrigeration equipment, the energy efficiency of compressors and heat exchange systems also needs optimization.

[0004] In heat exchange systems, a single-intake, single-exhaust compressor is generally used to form the heat exchange system, but the energy efficiency of the single-intake, single-exhaust heat exchange system is relatively low. Alternatively, two compressors can be used to achieve the function of a dual-intake, dual-exhaust heat exchange system, but this will increase cost and weight, and will also occupy more space, which is not conducive to the compact installation space design of automobiles.

[0005] To address the aforementioned problems associated with using two compressors to achieve dual-intake and dual-exhaust functionality, a compressor with dual-intake and dual-exhaust capabilities can be employed. This type of compressor typically features two independent passages, each with its own intake and exhaust ports. The two passages operate independently, and if either the intake or exhaust port of one passage is closed, it transforms into a single-intake, single-exhaust compressor. However, this limitation restricts the compressor's functionality, making it difficult to flexibly coordinate the opening and closing relationships of the two intake and exhaust ports, thus limiting the function of the heat exchange system. Summary of the Invention

[0006] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes a compressor with dual exhaust and dual intake functions. The compressor has a reasonable structural design, which helps to reduce the size of the compressor and the space occupied by the compressor. The intake and exhaust functions of the compressor can be flexibly adjusted, improving the space utilization rate of the heat exchange system.

[0007] The present invention also proposes a heat exchange system.

[0008] A compressor according to a first aspect of the present invention includes:

[0009] The compression mechanism is constructed with a first air intake, a first compression chamber, and a second compression chamber.

[0010] The cover is sealed to the compression mechanism and is configured with a second air intake, a first air exhaust, and a second air exhaust.

[0011] Wherein, the first compression chamber is adapted to communicate with the first exhaust port, the second compression chamber is adapted to communicate with the second exhaust port, the first compression chamber is adapted to communicate with the second compression chamber, the first intake port is adapted to communicate with the second compression chamber, the second intake port is adapted to communicate with the second compression chamber, and the first exhaust pressure of the first compression chamber is greater than the second exhaust pressure of the second compression chamber.

[0012] The compressor according to an embodiment of the present invention includes a compression mechanism and a cover. The compression mechanism is configured with a first intake port, a first compression chamber, and a second compression chamber. The cover is configured with a second intake port, a first exhaust port, and a second exhaust port. The compression mechanism and the cover cooperate to achieve dual intake and dual exhaust functions, and can also achieve dual exhaust with different exhaust pressures, providing two types of pressurized gases that can be used for different heat exchange requirements. The structure of the compression mechanism and the cover is reasonable, which can simplify the structure of the compressor, help reduce the size of the compressor, and save space. Since both the first intake port and the second intake port can be connected to the first compression chamber and the second compression chamber, when one intake port is closed, exhaust can still be performed through the first exhaust port and the second exhaust port to achieve dual exhaust; when one exhaust port is closed, both the first intake port and the second intake port can be used for intake to achieve dual intake. The first intake port is located in the compression mechanism, and the second intake port is located in the cover. The different positions of the two intake ports can make the two intake ports as independent as possible and avoid cross-contamination.

[0013] According to one embodiment of the present invention, the first suction pressure of the first suction port is less than the second suction pressure of the second suction port. The compression mechanism further comprises a first intake chamber, and the first suction port communicates with the second compression chamber through the first intake chamber. When the suction pressures of the first suction port and the second suction port are different, the first suction port is located in the compression mechanism, and the second suction port is located in the cover. The two suction ports are separated, which can prevent the refrigerant drawn in by the second suction port from flowing back to the first suction port due to the difference in suction pressure, thus preventing refrigerant backflow. According to one embodiment of the present invention, the compressor is adapted to operate in a first state, with the first suction port open, the second suction port closed, and the first and second exhaust ports open. The first suction port is adapted to communicate with the second exhaust port through the second compression chamber, and the first suction port is adapted to communicate with the first exhaust port through the second compression chamber and the first compression chamber.

[0014] According to one embodiment of the present invention, the compressor is adapted to operate in a second state, wherein the first intake port and the second intake port are open, the second exhaust port is closed, the first exhaust port is open, the first intake port is adapted to communicate with the second compression chamber, the first compression chamber and the first exhaust port, and the second intake port is adapted to communicate with the second compression chamber, the first compression chamber and the first exhaust port.

[0015] According to one embodiment of the present invention, the compression mechanism includes a stationary volute and a moving volute. The stationary volute is sealed to the cover. The stationary volute has a first air intake port and forms a cavity. The moving volute is located in the cavity and is adapted to move in the cavity. The moving volute and the stationary volute form a first compression cavity and a second compression cavity.

[0016] According to one embodiment of the present invention, two second compression chambers are formed between the moving scroll and the stationary scroll. The stationary scroll is connected to a first valve body, a second valve body and a third valve body. The first valve body is used to adjust the connection between the second exhaust port and one of the second compression chambers. The second valve body is used to adjust the connection between the second exhaust port and the other second compression chamber. The third valve body is used to adjust the connection between the first exhaust port and the first compression chamber.

[0017] According to one embodiment of the present invention, the cover is constructed with a first silencing cavity and a second silencing cavity. The first silencing cavity is connected to a first oil distribution cavity and a first compression cavity, and the second silencing cavity is connected to a second oil distribution cavity and a second compression cavity. The second silencing cavity includes a first cavity and a second cavity. The first cavity and the second cavity are connected through a connecting channel of the cover. The connecting channel is located below the first silencing cavity. The first cavity is connected to one of the second compression cavities, and the second cavity is connected to the other second compression cavity.

[0018] According to one embodiment of the present invention, the stationary vortex disk is connected to a fourth valve body, the fourth valve body includes a fourth valve body and a fourth valve plate, the fourth valve body has a valve opening, the fourth valve plate is adapted to open and close the valve opening, the stationary vortex disk has a communication port, the communication port is offset from the valve opening, and the communication port communicates with the second compression chamber.

[0019] According to one embodiment of the present invention, the cover body is constructed as follows:

[0020] The first oil distribution chamber and the first oil return port, the first exhaust port is connected to the first compression chamber through the first oil distribution chamber, and the first oil distribution chamber is connected to the first oil return port;

[0021] The second oil distribution chamber and the second oil return port are connected to the second compression chamber through the second oil distribution chamber and the second oil distribution chamber is connected to the second oil return port.

[0022] The first oil return port and the second oil return port are adapted to communicate with the oil chamber inside the compressor.

[0023] According to an embodiment of the present invention, the compression mechanism is provided with a third oil return channel and a fourth oil return channel. The third oil return channel connects the first oil return port and the oil chamber, and the fourth oil return channel connects the second oil return port and the oil chamber. The third oil return pressure of the third oil return channel is the same as the fourth oil return pressure of the fourth oil return channel.

[0024] Alternatively, the compression mechanism is provided with a fifth oil return channel, the cover is provided with a first oil guide groove, the first oil return port and the second oil return port are both connected to the first oil guide groove, the first oil return pressure of the first oil return port and the second oil return pressure of the second oil return port are the same, and the first oil guide groove is connected to the oil chamber through the fifth oil return channel.

[0025] According to one embodiment of the present invention, when the cover body is configured with a second silencing cavity, the cover body is configured with an oil return cavity, the oil return cavity, the second silencing cavity and the second oil return port are connected, a gasket is provided between the cover body and the stationary volute of the compression mechanism, the gasket closes a partial opening of the oil return cavity, the gasket is configured with a first connecting hole and a second connecting hole, the first connecting hole connects the oil return cavity and the fourth oil return channel, the stationary volute is configured with a second oil guide groove, the second connecting hole connects the second oil guide groove and the second oil return port, and the second oil guide groove connects the oil return cavity.

[0026] According to an embodiment of the present invention, the cover is constructed with a first oil return channel and a second oil return channel. One end of the first oil return channel forms the first oil return port, and the other end is connected to the first oil distribution chamber. One end of the second oil return channel forms the second oil return port, and the other end is connected to the second oil distribution chamber. The first oil return pressure of the first oil return port is the same as the second oil return pressure of the second oil return port. The first oil return port and the second oil return port face the side where the compression mechanism is located.

[0027] According to one embodiment of the present invention, the first silencing cavity is separated from the first oil distribution cavity and the first oil return channel by a first partition wall, and the first partition wall is provided with a first oil return hole communicating with the first oil return channel;

[0028] And / or, the second silencing cavity is separated from the second oil distribution cavity and the second oil return channel by a second partition wall, and the second partition wall is provided with a second oil return hole communicating with the second oil return channel.

[0029] According to one embodiment of the present invention, the cover body is configured with an oil return chamber, and the oil return chamber, the second silencing chamber and the second oil return port are connected.

[0030] According to one embodiment of the present invention, the first silencing cavity is separated from the first oil distribution cavity by a first partition wall, the first partition wall is provided with a first inlet, the first inlet connects the first silencing cavity and the first oil distribution cavity, and the first inlet is adapted to allow air to enter along the tangential direction of the first oil distribution cavity;

[0031] And / or, the second cavity is separated from the second oil distribution cavity by a second partition wall, the second partition wall is provided with a second inlet, the second inlet connects the second cavity and the second oil distribution cavity, and the second inlet is adapted to allow air to enter tangentially along the second oil distribution cavity.

[0032] According to one embodiment of the present invention, the cover is constructed with a first oil guide groove, at least one of the first oil return port and the second oil return port is in communication with the first oil guide groove, and the first oil guide groove extends downward along the first oil return port or the second oil return port toward the edge of the cover.

[0033] According to an embodiment of the present invention, a first oil-separating component is provided in the first oil-separating chamber. The first oil-separating component includes a first separating element and a first filtering element. A first annular interlayer is formed between the first separating element and the wall of the first oil-separating chamber. The first inlet of the first oil-separating chamber communicates with the first annular interlayer and the inner cavity of the first separating element. The first filtering element is located between the first inlet and the first exhaust port.

[0034] And / or, a second oil-separating component is provided in the second oil-separating chamber. The second oil-separating component includes a second separator and a second filter. A second annular interlayer is formed between the second separator and the wall of the second oil-separating chamber. The second inlet of the second oil-separating chamber communicates with the second annular interlayer and the inner cavity of the second separator. The second filter is located between the second inlet and the second exhaust port.

[0035] According to one embodiment of the present invention, the cover is further configured with a second air intake port and a second air inlet chamber adapted to communicate with the compression chamber of the compressor, the second air intake port being in communication with the second air inlet chamber.

[0036] According to one embodiment of the present invention, the housing of the compression mechanism is configured with a third oil return channel and a fourth oil return channel. The third oil return channel connects the first oil return port and the oil chamber, and the fourth oil return channel connects the second oil return port and the oil chamber. The third oil return pressure of the third oil return channel is the same as the fourth oil return pressure of the fourth oil return channel.

[0037] According to a second aspect of the present invention, a heat exchange system includes a first heat exchanger, a throttling element, a second heat exchanger, and a compressor as described in any one of the above, connected to form a circulation loop.

[0038] The heat exchange system according to embodiments of the present invention includes the compressor in the above embodiments, and can provide a heat exchange system with dual exhaust and dual intake. The exhaust and intake functions of the compressor are realized by the cooperation of the cover and the compression mechanism. The compressor has a reasonable structural layout, which helps to reduce the volume of the compressor, thereby reducing the volume of the heat exchange system and helping to optimize the space utilization of refrigeration equipment and products that require heat exchange, such as automobiles.

[0039] According to one embodiment of the present invention, the heat exchange system includes a first heat exchanger, a second heat exchanger, a third heat exchanger, a first throttling element, a second throttling element, and a compressor as described in any one of the above. The first heat exchanger, the first throttling element, the second heat exchanger, and the compressor are connected to form a first circulation loop, and the first heat exchanger, the second throttling element, the third heat exchanger, and the compressor are connected to form a second circulation loop.

[0040] According to one embodiment of the present invention, the third heat exchanger is connected in parallel with the second heat exchanger and is located upstream of the second heat exchanger, the throttling component includes a first throttling element and a second throttling element, and the compressor is adapted to switch between a first state and a second state;

[0041] In the first state, the first exhaust port, the second heat exchanger, the first throttling device, the first heat exchanger, and the first intake port are connected to form a first heat exchange cycle, and the second exhaust port, the third heat exchanger, the second throttling device, the first heat exchanger, and the first intake port are connected to form a second heat exchange cycle.

[0042] In the second state, the second exhaust port, the first heat exchanger, the first throttling device, the second heat exchanger, and the first intake port are connected to form a third heat exchange cycle; the second exhaust port, the first heat exchanger, the second throttling device, the third heat exchanger, and the second intake port are connected to form a fourth heat exchange cycle.

[0043] According to one embodiment of the present invention, the system further includes a first regulating valve and a second regulating valve. The first regulating valve includes a first valve port, a second valve port, and a third valve port. The first valve port and the second valve port are connected to form a first passage, and the second valve port and the third valve port are connected to form a second passage. The first regulating valve is adapted to switch the first passage and the second passage on and off. The second regulating valve includes a fourth valve port, a fifth valve port, a sixth valve port, and a seventh valve port. The fourth valve port and the fifth valve port are connected to form a third passage, the sixth valve port and the seventh valve port are connected to form a fourth passage, the fourth valve port and the sixth valve port are connected to form a fifth passage, and the fifth valve port and the seventh valve port are connected to form a sixth passage.

[0044] In the first heat exchange cycle, the first passage connects the first exhaust port and the second heat exchanger, and the fourth passage connects the first heat exchanger and the first intake port.

[0045] In the second heat exchange cycle, the third passage connects the second exhaust port and the third heat exchanger, and the fourth passage connects the first heat exchanger and the first intake port;

[0046] In the third heat exchange cycle, the fifth passage connects the first exhaust port and the first heat exchanger, and the sixth passage connects the second heat exchanger and the first intake port.

[0047] In the fourth heat exchange cycle, the fifth passage connects the first exhaust port to the first heat exchanger, and the third passage connects the third heat exchanger to the second intake port.

[0048] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a three-dimensional structural diagram of the connection state between the compressor cover and the compression mechanism provided in an embodiment of the present invention;

[0051] Figure 2 This is a three-dimensional structural diagram of the cover of the first compressor provided in an embodiment of the present invention;

[0052] Figure 3 This is a front view structural diagram of the compressor cover provided in an embodiment of the present invention;

[0053] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of AA;

[0054] Figure 5 This is a three-dimensional structural diagram of the cover of the second type of compressor provided in this embodiment of the invention; and Figure 2 The difference is that, Figure 5 The cover structure has a second air intake and a second air inlet;

[0055] Figure 6 yes Figure 5A three-dimensional schematic diagram of the cross-sectional structure of BB;

[0056] Figure 7 yes Figure 5 A three-dimensional schematic diagram of the cross-sectional structure of CC;

[0057] Figure 8 This is a three-dimensional structural diagram of the cover of the third type of compressor provided in this embodiment of the invention; and Figure 2 The difference is that, Figure 8 The first oil guide groove in the middle is connected to the first oil return port and the second oil return port. Figure 2 The first oil guide groove in the middle is connected to the first oil return port;

[0058] Figure 9 This is a three-dimensional structural diagram illustrating the connection state between the compressor cover and the compression mechanism provided in an embodiment of the present invention; and Figure 1 The difference is that, Figure 9 The cover structure has a second air intake and a second air inlet;

[0059] Figure 10 This is a front view structural schematic diagram of the connection state between the compressor cover and the compression mechanism provided in an embodiment of the present invention;

[0060] Figure 11 yes Figure 10 Schematic diagram of the cross-sectional structure of DD;

[0061] Figure 12 This is a top view of the compressor cover and compression mechanism provided in an embodiment of the present invention;

[0062] Figure 13 yes Figure 12 A three-dimensional structural diagram of the cross-section of the EE;

[0063] Figure 14 This is a three-dimensional structural diagram showing the connection state of the compressor cover and gasket, the third throttling device and the fourth throttling device provided in the embodiment of the present invention.

[0064] Figure 15 This is a front view structural schematic diagram of the connection state of the compressor cover and gasket, the third throttling device and the fourth throttling device provided in the embodiment of the present invention;

[0065] Figure 16 yes Figure 15 A three-dimensional structural diagram of the cross-section of the middle FF;

[0066] Figure 17 yes Figure 15 A three-dimensional structural diagram of the cross-section of HH;

[0067] Figure 18This is a three-dimensional structural schematic diagram of the compression mechanism provided in an embodiment of the present invention;

[0068] Figure 19 This is a front view structural schematic diagram of the compression mechanism provided in an embodiment of the present invention;

[0069] Figure 20 This is a rear view structural schematic diagram of the compression mechanism provided in an embodiment of the present invention;

[0070] Figure 21 yes Figure 19 A three-dimensional structural diagram of the cross-section of GG;

[0071] Figure 22 This is a schematic diagram of the heat exchange system provided in an embodiment of the present invention; the diagram illustrates a single-intake, dual-exhaust heat exchange system.

[0072] Figure 23 This is a schematic diagram of the heat exchange system provided in an embodiment of the present invention; the diagram illustrates a dual-intake, single-exhaust heat exchange system; wherein, Figure 22 and Figure 23 The dashed lines indicate broken pipe sections. Solid arrows in the diagram indicate the path from the compressor to the evaporator, while hollow arrows indicate the path from the evaporator to the compressor. Figure 22 and Figure 23 The dashed boxes outside the second and third heat exchangers indicate that the two heat exchangers are located on the same air supply path, and the arrows outside the dashed boxes indicate the airflow direction of the second and third heat exchangers.

[0073] Figure label:

[0074] 100. Cover; 111. First oil distribution chamber; 112. First exhaust port; 113. First oil return channel; 114. First oil return port; 115. First silencer chamber; 116. First partition wall; 117. First inlet; 118. First oil return hole; 121. Second oil distribution chamber; 122. Second exhaust port; 123. Second oil return channel; 124. Second oil return port; 125. Second silencer chamber; 126. First cavity; 127. Second cavity; 12 8. Connecting channel; 129. Second partition wall; 130. Second inlet; 131. Second oil return hole; 132. Oil return chamber; 140. First oil guide groove; 150. Second air intake; 151. Second air intake chamber; 160. First oil separator component; 161. First separator; 162. First filter; 163. First annular sandwich layer; 170. Second oil separator component; 171. Second separator; 172. Second filter; 173. Second annular sandwich layer;

[0075] 200. Compression mechanism; 210. Static scroll plate; 211. Second oil guide groove; 212. Cavity; 213. Connecting port; 214. First valve body; 215. Second valve body; 216. Third valve body; 217. Fourth valve body; 218. Fourth valve body; 219. Fourth valve plate; 220. Valve opening; 221. Relief surface; 230. Moving scroll plate; 240. First compression chamber; 250. Second compression chamber; 260. First intake port;

[0076] 300, gasket; 310, first connecting hole; 320, second connecting hole;

[0077] 410. Third throttling device; 420. Fourth throttling device;

[0078] 500, Compressor; 510, First liquid receiver; 520, Second liquid receiver; 610, First heat exchanger; 620, Second heat exchanger; 630, Third heat exchanger; 710, First throttling element; 720, Second throttling element; 800, First regulating valve; 810, First passage; 820, Second passage; 900, Second regulating valve; 910, Third passage; 920, Fourth passage; 930, Fifth passage; 940, Sixth passage. Detailed Implementation

[0079] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0080] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0081] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 the embodiments of the present invention based on the specific circumstances.

[0082] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Before describing the embodiments of the present invention, the design concept of the present invention will be explained. Figures 1 to 21 As shown, an embodiment of the present invention provides a dual-exhaust compressor 500, and correspondingly, an embodiment of a cover 100 for the compressor 500 is provided to achieve the dual-exhaust function; an embodiment of the present invention also provides a compressor 500 capable of dual intake and dual exhaust, and correspondingly, an embodiment of a cover 100 for the compressor 500 is provided, while combining with Figures 21 to 23 As shown, the compressor 500, which can perform dual intake and dual exhaust, can be applied to various heat exchange systems. The compressor 500 can operate in a single intake and dual exhaust state (the first state below) and a dual intake and single exhaust state (the second state below), and provides a heat exchange system in both operating states.

[0085] refer to Figure 1The diagram illustrates the connection between the cover 100 of a compressor 500 and the compression mechanism 200. The cover 100 is connected to the exhaust side of the compression mechanism 200 to discharge the high-temperature, high-pressure gas compressed by the compression mechanism 200 through the exhaust port of the cover 100. The cover 100 is provided with a first exhaust port 112 and a second exhaust port 122. The first exhaust port 112 and the second exhaust port 122 are used to discharge gases at different pressures. The first exhaust pressure of the first exhaust port 112 is greater than the second exhaust pressure of the second exhaust port 122. This can be understood as the first exhaust port 112 discharging high-pressure gas, the second exhaust port 122 discharging medium-pressure gas, and the compressor 500's intake port drawing in low-pressure gas. Here, the pressures of the high-pressure gas, medium-pressure gas, and low-pressure gas decrease sequentially, and are relative concepts, not limiting the pressure range of the high-pressure gas, medium-pressure gas, and low-pressure gas. The cover 100 has a dual exhaust function, eliminating the need for an exhaust port on the compressor 500's housing, thus simplifying the exhaust process.

[0086] It should be noted that the compressor 500 provided in the embodiments of the present invention has a dual-exhaust structure, but the type of compressor 500 is not limited. For example, the compressor 500 can be a rotary compressor, a scroll compressor, etc. Figures 1 to 21 The following explanation uses a scroll compressor as an example.

[0087] According to a first aspect of the present invention, a cover 100 of a compressor 500 is provided, in conjunction with... Figures 1 to 7 As shown, the cover 100 is constructed with a first oil distribution chamber 111 and a first oil return port 114. The first oil distribution chamber 111 is connected to the first exhaust port 112 and the first oil return port 114. The first oil distribution chamber 111 is adapted to be connected to the first compression chamber 240 of the compression mechanism 200. The first oil return port 114 is adapted to be connected to the oil chamber in the compressor 500 (the oil chamber is not shown in the figure. The oil chamber is located on one side of the compression mechanism and the cover is located on the other side of the compression mechanism). The gas discharged after being compressed by the first compression chamber 240 enters the first oil separation chamber 111. After oil-gas separation in the first oil separation chamber 111, the gas is discharged from the first exhaust port 112. The gas discharged from the first exhaust port 112 can be understood as high-pressure gas. The oil is discharged from the cover 100 from the first return port 114. When the cover 100 is installed on the compressor body (which can be understood as the compressor without the cover, forming an oil chamber), the oil can flow back to the oil chamber of the compressor 500 through the first return port 114, realizing the separation of high-pressure gas into oil.

[0088] The cover 100 also has a second oil distribution chamber 121 and a second oil return port 124. The second oil distribution chamber 121 is connected to the second exhaust port 122 and the second oil return port 124. The second oil distribution chamber 121 is adapted to be connected to the second compression chamber 250 of the compression mechanism 200, and the second oil return port 124 is adapted to be connected to the oil chamber in the compressor 500. The gas discharged after being compressed by the second compression chamber 250 enters the second oil distribution chamber 121. After oil-gas separation in the second oil distribution chamber 121, the gas is discharged from the second exhaust port 122. The gas discharged from the second exhaust port 122 can be understood as medium-pressure gas. The oil is discharged from the cover 100 from the second oil return port 124. When the cover 100 is installed on the compressor body, the oil can flow back to the oil chamber of the compressor 500 through the second oil return port 124, realizing the oil separation of medium-pressure gas.

[0089] Each exhaust port is equipped with a corresponding oil separator chamber. The oil separated by the oil separator chamber returns to its respective oil return port. The oil in the two refrigerant streams can be independently separated and returned, which solves the problem of different oil pressures in the returning oil under different exhaust pressures. Furthermore, the independent oil return port prevents oils of different pressures from mixing in the cover body and affecting the exhaust, thus resolving the oil separation and return issues under different exhaust pressures. Therefore, in this embodiment, one cover body 100 can discharge refrigerant at two different exhaust pressures, simplifying the compressor structure and helping to reduce the size of the heat exchange system.

[0090] The compressor cover 100 of this embodiment has a dual exhaust function and an oil separation function. It performs oil separation while exhausting, so the compressor 500 can eliminate the need for a separate oil separator, which can reduce the size of the compressor 500, reduce the number of parts in the heat exchange system, reduce the volume of the compressor chamber, and reduce the space occupied by the heat exchange system in the refrigeration equipment and automobile, thus helping to optimize space utilization.

[0091] Understandably, reference Figure 2 , Figures 5 to 7 As shown, the cover 100 is constructed with a first oil return channel 113. One end of the first oil return channel 113 forms a first oil return port 114, and the other end is connected to the first oil distribution chamber 111. The oil separated from the first oil distribution chamber 111 is guided to the first oil return port 114 through the first oil return channel 113. The position, orientation and first oil return pressure of the first oil return port 114 can be adjusted. There is no need to set up an additional oil return pipeline. The structure is simple and helps to simplify the structure of the compressor 500 and reduce the size of the compressor 500.

[0092] The cover 100 is also constructed with a second oil return channel 123. One end of the second oil return channel 123 forms a second oil return port 124, and the other end is connected to the second oil distribution chamber 121. The oil separated from the second oil distribution chamber 121 is guided to the second oil return port 124 through the second oil return channel 123. The position, orientation and second oil return pressure of the second oil return port 124 can be adjusted. The structure is simple.

[0093] In some cases, the first return oil pressure of the first return oil port 114 is the same as the second return oil pressure of the second return oil port 124. Since the first exhaust pressure of the first exhaust port 112 is different from the second exhaust pressure of the second exhaust port 122, the oil pressure in the first oil distribution chamber 111 is different from the oil pressure in the second oil distribution chamber 121. The return oil pressure is adjusted by the first return oil channel 113 and the second return oil channel 123 so that the return oil pressure of the first return oil port 114 and the second return oil port 124 is the same, so as to avoid the pressure difference between the first return oil port 114 and the second return oil port 124 and ensure stable return oil.

[0094] In some cases, at least one of the first oil return port 114 and the second oil return port 124 faces the side where the compression mechanism 200 is located. At least one of the first oil return port 114 and the second oil return port 124 is connected to the oil chamber through the compression mechanism 200 so that the oil can be returned to the oil chamber through the compression mechanism 200. There is no need to set up an oil return pipeline on the outside of the compression mechanism 200, which can simplify the structure of the compressor 500.

[0095] It should be noted that the cover 100 may be provided with at least one of the first oil return channel 113 and the second oil return channel 123. The oil distribution chamber (first oil distribution chamber or second oil distribution chamber) without an oil return channel can be adjusted for oil return in other ways. For example, the oil distribution chamber can be connected to the oil chamber through a pipeline provided on the outside of the cover 100 and the shell. This pipeline can adjust the direction of the oil return port, the oil return pressure, etc.

[0096] Understandably, reference Figure 2 and Figure 8 As shown, the cover 100 is constructed with a first oil guide groove 140. At least one of the first oil return port 114 and the second oil return port 124 communicates with the first oil guide groove 140. The first oil guide groove 140 extends downward along the first oil return port 114 or the second oil return port 124 toward the edge of the cover 100. By providing the first oil guide groove 140, the oil from at least one of the first oil return port 114 and the second oil return port 124 is guided toward the edge of the cover 100, so that the oil can flow back into the oil chamber through the compression mechanism 200 near the edge, thereby avoiding the compression chamber and other components of the compression mechanism 200, and returning oil through a suitable position of the compression mechanism 200.

[0097] refer to Figure 2As shown, the first oil return port 114 is connected to the first oil guide groove 140, for reference. Figure 8 As shown, both the first oil return port 114 and the second oil return port 124 are connected to the first oil guide groove 140. Of course, the second oil return port can also be connected to the first oil guide groove independently (not shown in the figure). Reference Figure 2 As shown, the first oil return port 114 is connected to the first oil guide groove 140, and the second oil return port 124 returns oil through other means. The first oil guide groove 140 extends from the first oil return port 114 downwards, and the oil flows downwards along the first oil guide groove 140 due to gravity. The end of the first oil guide groove 140 forms a third oil return port, which is connected to the oil return channel of the compression mechanism 200. Since the first oil return port 114 and the second oil return port 124 return oil to the compression mechanism 200 independently, the oil return pressure of the first oil return port 114 and the second oil return port 124 is not limited here.

[0098] refer to Figure 8 As shown, both the first oil return port 114 and the second oil return port 124 are connected to the first oil guide groove 140. The second oil return port 124 is located above the first oil return port 114. The first oil guide groove 140 extends downward from the second oil return port 124 to the first oil return port 114. The oil flowing back from the second oil return port 124 and the first oil return port 114 flows downward along the first oil guide groove 140 by gravity. The end of the first oil guide groove 140 forms a third oil return port, which is connected to the oil return channel of the compression mechanism 200. Since both the first oil return port 114 and the second oil return port 124 return oil to the compression mechanism 200 through the third oil return port, it is necessary to ensure that the first oil return pressure of the first oil return port 114 is the same as the second oil return pressure of the second oil return port 124 to ensure that the oil flows back smoothly into the oil chamber and to avoid backflow of oil due to different oil return pressures.

[0099] Based on the above, the return oil pressure of the first oil distribution chamber 111 is greater than the return oil pressure of the second oil distribution chamber 121. To achieve the same return oil pressure between the first return oil port 114 and the second return oil port 124, the first return oil pressure of the first return oil port 114 can be adjusted through the first return oil channel 113, or the first return oil pressure and the second return oil pressure can be adjusted through the first return oil channel 113 and the second return oil channel 123 respectively. Specifically, if only the first return oil pressure of the first return oil port 114 is adjusted through the first return oil channel 113, the return oil pressure of the first return oil port 114 can be adjusted to be equal to the second return oil pressure; if the first return oil pressure and the second return oil pressure are adjusted through the first return oil channel 113 and the second return oil channel 123 respectively, both the first return oil pressure and the second return oil pressure can be lowered to the set return oil pressure.

[0100] The oil return pressure adjustment method for at least one of the first oil return channel 113 and the second oil return channel 123 can be as follows: the oil return pressure can be adjusted by adjusting the cross-sectional area of ​​at least one of the first oil return channel 113 and the second oil return channel 123, such as a capillary-type oil return channel structure, thereby reducing the number of parts in the cover 100; or, at least one of the first oil return channel 113 and the second oil return channel 123 is provided with a throttling device, which is used to adjust the oil return pressure. The oil return channel can be processed into a universal size, and different specifications of throttling devices can be installed as needed, so that the cover 100 is suitable for compressors 500 with various discharge pressures, thus broadening the applicability of the cover 100 and helping to reduce production costs.

[0101] It should be noted that when the first oil return port 114 and the second oil return port 124 independently return oil to the oil chamber of the compressor 500, the oil in the first oil return port 114 and the second oil return port 124 do not mix at the cover 100. The first oil return pressure and the second oil return pressure are not limited to be the same. The oil return pressure can be adjusted within the compression mechanism 200. Before entering the oil chamber, the oil return pressure is ensured to be consistent with the pressure inside the oil chamber, so that the oil can flow back stably into the oil chamber and prevent oil backflow.

[0102] It is understandable that the cover 100 is provided with a first inlet 117 that communicates with the first oil separation chamber 111. The first inlet 117 is adapted to allow air to enter tangentially along the first oil separation chamber 111 so that the gas and liquid in the first oil separation chamber 111 can be separated into oil by cyclone separation.

[0103] refer to Figure 5 and Figure 6 , Figure 16 and Figure 17 As shown, a first oil-separating component 160 is provided in the first oil-separating chamber 111. The first oil-separating component 160 includes a first separating element 161. A first annular interlayer 163 is formed between the outer wall of the first separating element 161 and the wall of the first oil-separating chamber 111. The gas entering the first oil-separating chamber 111 through the first inlet 117 rotates and flows within the first annular interlayer 163. The gas then enters the inner cavity of the first separating element 161, thus achieving cyclone separation.

[0104] The first separator 161 can be a cylindrical structure. Gas enters the first annular interlayer 163 from the first inlet 117 and flows downwards in a rotating manner. Gas enters the inner cavity of the first separator 161 from below and flows upwards to the first exhaust port 112, so that the first separator 161 and the first oil separation chamber 111 cooperate to perform cyclone separation. Gas is discharged through the first exhaust port 112.

[0105] The first oil separating component 160 mentioned above may include a first filter element 162. Gas and liquid are separated by contact with the first filter element 162. Gas passes through the first filter element 162 and is discharged through the first exhaust port 112. Liquid is blocked by the first filter element 162 and flows downward to the first oil separating chamber 111 due to gravity, so that the oil is discharged from the cover 100 through the first oil return port 114.

[0106] Of course, the first oil separation component 160 may also include a first separator 161 and a first filter 162. The first separator 161 and the first filter 162 may be an integral structure or independent parts, so that gas-liquid separation is achieved in the first oil separation chamber 111 through the dual action of cyclone separation and filtration separation. The structure is simple and the oil separation effect is good.

[0107] It is also understandable that, reference Figure 5 and Figure 7 As shown, the cover 100 has a second inlet 130 that communicates with the second oil separation chamber 121. The second inlet 130 is adapted to allow air to enter tangentially along the second oil separation chamber 121 so that the gas and liquid in the second oil separation chamber 121 can be separated into oil by cyclone separation.

[0108] A second oil-separating component 170 may be provided in the second oil-separating chamber 121. The second oil-separating component 170 includes a second separating element 171. A second annular interlayer 173 is formed between the outer wall of the second separating element 171 and the wall of the second oil-separating chamber 121. The gas entering the second oil-separating chamber 121 through the second inlet 130 rotates and flows in the second annular interlayer 173, and then enters the inner cavity of the second separating element 171 to achieve cyclone separation.

[0109] The shape of the second separating member 171 can be the same as that of the first separating member 161, as detailed above, and will not be repeated here.

[0110] The aforementioned second oil separator 170 may also include a second filter element 172, through which gas and liquid are separated by contact with the second filter element 172. Gas passes through the second filter element 172 and is discharged through the second exhaust port 122, while liquid is blocked by the second filter element 172 and flows downward to the second oil separator chamber 121 due to gravity, so that oil can be discharged from the cover 100 through the second return port 124.

[0111] Of course, the second oil separation component 170 may also include a second separator 171 and a second filter 172. The second separator 171 and the second filter 172 may be an integral structure or independent parts, so that gas-liquid separation is achieved in the second oil separation chamber 121 through the dual action of cyclone separation and filtration separation. The structure is simple and the oil separation effect is good.

[0112] At least one of the first oil separation chamber 111 and the second oil separation chamber 121 can be separated into oil by at least one of cyclone oil separation and filter oil separation, which can be selected as needed.

[0113] The above describes the oil distribution chamber, oil return port, and exhaust port. However, the cover 100 may not be limited to having the functions of oil distribution, oil return, and exhaust; the cover 100 may also have a noise reduction function.

[0114] It is understood that the cover 100 is constructed with at least one of a first silencing cavity 115 and a second silencing cavity 125. The first silencing cavity 115 is connected to the first exhaust port 112 through the first oil distribution cavity 111, and the second silencing cavity 125 is connected to the second exhaust port 122 through the second oil distribution cavity 121. The openings of the first silencing cavity 115 and the second silencing cavity 125 face the side where the compression mechanism 200 is located, so that the first oil distribution cavity 111 is connected to the first compression cavity 240 of the compression mechanism 200 through the first silencing cavity 115, and the second oil distribution cavity 121 is connected to the second compression cavity 250 of the compression mechanism 200 through the second silencing cavity 125. This enables the emission of gases at different exhaust pressures and ensures that the pressurized gases can be silenced and reduced.

[0115] When the cover 100 is constructed with a first silencing cavity 115, the first compression cavity 240 is connected to the first oil distribution cavity 111 through the first silencing cavity 115. The gas discharged from the first compression cavity 240 enters the first silencing cavity 115 and is silencing and reducing noise in the first silencing cavity 115. The gas also plays a role in oil distribution when it comes into contact with the wall of the first silencing cavity 115.

[0116] When the cover 100 is constructed with a second silencing cavity 125, the second compression cavity 250 is connected to the second oil distribution cavity 121 through the second silencing cavity 125. The gas discharged from the second compression cavity 250 enters the second silencing cavity 125 and is silencing and reducing noise in the second silencing cavity 125. The gas also plays a role in oil distribution when it comes into contact with the wall of the second silencing cavity 125.

[0117] refer to Figure 2 and Figure 8 As shown, when the cover 100 is constructed with a first silencing cavity 115 and a second silencing cavity 125, the first silencing cavity 115 and the second silencing cavity 125 occupy the main space in the thickness direction of the cover 100. The size of the space of the first silencing cavity 115 and the second silencing cavity 125 can be set as needed.

[0118] Understandably, reference Figure 2 and Figure 5As shown, the first silencing chamber 115 is separated from the first oil-separating chamber 111 by a first partition wall 116. The first partition wall 116 has a first inlet 117, which connects the first silencing chamber 115 and the first oil-separating chamber 111. The cover 100 has a simple structure, which facilitates the rapid entry of the silenced gas into the first oil-separating chamber 111, ensuring exhaust efficiency. The first inlet 117 can be located tangentially to the first oil-separating chamber 111, allowing tangential air intake and improving gas-liquid separation.

[0119] It is also understandable that, reference Figure 2 and Figure 5 As shown, the second cavity 127 is separated from the second oil-separating cavity 121 by a second partition wall 129. The second partition wall 129 has a second inlet 130, which connects the second silencer cavity 125 and the second oil-separating cavity 121. The cover 100 has a simple structure, which facilitates the rapid entry of silenced gas into the second oil-separating cavity 121, ensuring exhaust efficiency. The second inlet 130 can be located tangentially to the second oil-separating cavity 121, allowing tangential air intake into the second oil-separating cavity 121, which helps to improve the gas-liquid separation effect.

[0120] Understandably, reference Figure 2 and Figure 8 As shown, the first silencing chamber 115 is separated from the first oil distribution chamber 111 and the first oil return channel 113 by the first partition wall 116. The first partition wall 116 is provided with a first oil return hole 118 that communicates with the first oil return channel 113. The oil separated from the first silencing chamber 115 can flow back into the first oil return channel 113 through the first oil return hole 118. The structure is simple and the oil return effect is good, which solves the problem of too much oil accumulating in the first silencing chamber 115 and avoids the accumulation of oil in the first silencing chamber 115 from affecting the exhaust effect.

[0121] The first oil return channel 113 is located below the first oil return hole 118, so that the oil can automatically flow into the first oil return channel 113 by gravity, thus preventing the oil in the first oil return channel 113 from flowing back into the first silencer 115.

[0122] Understandably, reference Figure 8 As shown, the second silencing chamber 125 is separated from the second oil distribution chamber 121 and the second oil return channel 123 by the second partition wall 129. The second partition wall 129 is provided with a second oil return hole 131 that communicates with the second oil return channel 123. The structure is simple and the oil return effect is good, which solves the problem of too much oil accumulating in the second silencing chamber 125 and avoids the accumulation of oil in the second silencing chamber 125 from affecting the exhaust effect.

[0123] The second oil return channel 123 is located below the second oil return hole 131, so that the oil can automatically flow into the second oil return channel 123 by gravity, thus preventing the oil in the second oil return channel 123 from flowing back into the second silencer 125.

[0124] In the above embodiments, the number of silencing chambers in the cover 100 corresponds to the number of compression chambers in the compression mechanism 200. For example, if the compression mechanism 200 is provided with two compression chambers with different exhaust pressures, then the cover 100 is provided with two silencing chambers; if the compression mechanism 200 is provided with one high-pressure compression chamber and two medium-pressure compression chambers, then the cover 100 is provided with three silencing chambers. The silencing chambers corresponding to the two medium-pressure compression chambers are interconnected so that the gas in the two silencing chambers enters the second oil distribution chamber 121 and is discharged through the second exhaust port 122.

[0125] refer to Figure 2 and Figure 8 As shown, when the compression mechanism 200 is provided with two second compression chambers 250 (two medium-pressure compression chambers), the second silencer chamber 125 includes a first chamber 126 and a second chamber 127. The first chamber 126 and the second chamber 127 are connected by a connecting channel 128, which is located below the first silencer chamber 115. When the first chamber 126 and the second chamber 127 are separated from the second oil distribution chamber 121 by a second partition wall 129, and the second partition wall 129 is provided with a second inlet 130, the second partition wall 129 serves as the wall surface of the second chamber 127. Then, the gas in the first chamber 126 can enter the second chamber 127 through the connecting channel 128, and then enter the second oil distribution chamber 121 through the second inlet 130 in the second chamber 127, thus realizing oil distribution and exhaust.

[0126] refer to Figure 8 As shown, when the second partition wall 129 has a second oil return hole 131, the oil in the first cavity 126 can flow into the second cavity 127 through the connecting channel 128, and then flow back into the second oil return channel 123 through the second oil return hole 131. The connecting channel 128 has the dual functions of gas communication and liquid communication.

[0127] Of course, the second partition wall can also serve as the wall of the first cavity (not shown in the figure). The principles of noise reduction, oil separation and exhaust are the same as those described above, and will not be repeated here.

[0128] If the compression mechanism 200 is provided with three or more second compression chambers 250, then the cover 100 is provided with a corresponding number of chambers, and all chambers are connected to the second air inlet.

[0129] Understandably, reference Figures 2 to 7As shown, the cover 100 is configured with an oil return chamber 132, which is connected to the second silencer chamber 125 and the second oil return port 124. The oil in the second silencer chamber 125 and the second oil return port 124 both collect in the oil return chamber 132, and the oil in the oil return chamber 132 can flow back into the oil chamber of the compressor 500. The oil return chamber 132 is located below the second silencer chamber 125 and the second oil return port 124, so that the oil enters the oil return chamber 132 under the action of gravity.

[0130] At this time, the second partition wall does not need to have a second oil return hole. The oil in the first cavity 126, the second cavity 127, and the second oil return port 124 all collect in the oil return cavity 132, and the oil in the oil return cavity 132 is concentrated and returned to the oil cavity. When the oil in the oil return cavity 132 returns to the oil cavity through the shell of the compression mechanism 200, the shell can be provided with a fourth oil return channel communicating with the oil return cavity 132. The fourth oil return channel connects the oil return cavity 132 and the oil cavity, which can simplify the structure of the compression mechanism 200.

[0131] It should be noted that the cover 100 can also be configured to connect the oil return chamber, the first silencer chamber, and the first oil return port (not shown in the figure), that is, one of the oil return ports is connected to the oil return chamber, and the oil can be returned centrally through the oil return chamber. Alternatively, the cover can be configured with two independent oil return chambers (not shown in the figure), each of which is connected to the corresponding silencer and oil return port.

[0132] When the compressor 500 is a scroll compressor, the compression mechanism 200 includes a stationary scroll 210 and a moving scroll 230. The moving scroll 230 is rotatably disposed within the stationary scroll 210. The housing portion is the stationary scroll 210, which has an oil return channel. The oil return channel needs to avoid the compression chamber and other components between the stationary scroll 210 and the moving scroll 230. The oil return channel can be located at a lower position of the compressor 500 to facilitate the collection of oil within the cover 100 under gravity. When the compressor 500 is a rotary compressor, the compression mechanism 200 includes a housing portion and a rotor. A compression chamber is formed between the housing portion and the rotor. The rotor can rotate within the housing portion to compress and discharge gas.

[0133] It should be noted that when the cover 100 is provided with an oil return chamber 132, the cover 100 can also have a second oil return hole 131, resulting in a dual oil return scheme. The cover can also be provided with an oil return chamber (not shown in the figure) communicating with the first silencing chamber, allowing the oil in the first silencing chamber to collect within the cover and then flow back into the oil chamber. The first silencing chamber can also be provided with multiple chambers (not shown in the figure). Correspondingly, the compression mechanism is provided with multiple high-pressure compression chambers, and the multiple chambers can refer to the oil return method of the second silencing chamber described above for oil return.

[0134] In the aforementioned cover 100, the first oil distribution chamber 111 and the second oil distribution chamber 121 are arranged side by side within the cover 100. This can be understood as the axes of the first oil distribution chamber 111 and the second oil distribution chamber 121 being parallel or nearly parallel. The first oil distribution chamber 111 and the second oil distribution chamber 121 can extend vertically so that the oil flows into the first oil return channel 113 and the second oil return channel 123 under the action of gravity. The first oil return channel 113 and the second oil return channel 123 are also arranged side by side. For example, the axes of the first oil return channel 113 and the second oil return channel 123 are parallel or nearly parallel. The first oil return channel 113 and the second oil return channel 123 can extend laterally, and the first oil return chamber 132 and the second oil return chamber 132 can extend longitudinally. The cover 100 has a simple structure, reasonable design, and good noise reduction, oil distribution, oil return, and exhaust effects.

[0135] The cover 100 can be processed by casting, stamping or other methods. If the first oil distribution component 160, the second oil distribution component 170 and the throttling device need to be installed inside the cover 100, these components can be installed inside the cover 100. The installation method can be detachable or non-detachable connection. The specific connection method is not limited and can be selected as needed.

[0136] Based on the above embodiments, the compressor 500 has the cover 100 described above, and the compressor 500 has the advantages of low noise and high performance.

[0137] A second aspect of the present invention provides a compressor 500, including a compression mechanism 200 and a cover 100 as described in any of the above embodiments, the cover 100 being disposed on the exhaust side of the compression mechanism 200. When the cover 100 has two exhaust ports, the compressor 500 has two exhaust ports, making it a dual-exhaust compressor 500, with both compressed gases discharged through the cover 100. This results in a compact structure for the compressor 500, helping to reduce the volume of both the compressor 500 and the heat exchange system. Furthermore, since the compressor 500 includes the aforementioned cover 100, and the cover 100 has the aforementioned beneficial effects, the compressor 500 also possesses the aforementioned beneficial effects. For details, please refer to the above description; further elaboration is omitted here.

[0138] The exhaust side of the compression mechanism 200 can be understood as the side where the outlet of the compression chamber of the compression mechanism 200 is located. The gas discharged from the compression mechanism 200 directly enters the cover 100, achieving noise reduction, oil separation, and exhaust. The structure is simple, and the layout of the compressor 500 is reasonable. An exhaust valve is installed at the outlet of each compression chamber, and the opening and closing of the compression chamber is adjusted by the exhaust valve.

[0139] It is understood that the housing of the compression mechanism 200 has a third oil return channel and a fourth oil return channel. The third oil return channel connects the first oil return port 114 to the oil chamber, and the fourth oil return channel connects the second oil return port 124 to the oil chamber. The third oil return pressure of the third oil return channel is the same as the fourth oil return pressure of the fourth oil return channel. The oil from the first oil return port 114 and the second oil return port 124 flows back into the oil chamber through independent passages. At this time, the first oil return pressure of the first oil return port 114 and the second oil return pressure of the second oil return port 124 are not limited and can be the same or different. Correspondingly, the first oil return channel 113 and the second oil return channel 123 in the cover 100 can adjust the oil return pressure or not.

[0140] The third return oil pressure can be understood as the oil pressure at the outlet end of the third return oil channel, and the fourth return oil pressure can be understood as the oil pressure at the outlet end of the fourth return oil channel. This ensures that the oil pressure entering the oil chamber through the housing of the compression mechanism 200 is consistent, thus avoiding oil backflow caused by pressure difference.

[0141] The third return oil pressure can be regulated by installing a third throttling device 410 within the third return oil channel, or by adjusting the cross-sectional area of ​​the third return oil channel (which acts as a capillary). Similarly, a fourth throttling device 420 can be installed in the fourth return oil channel, or the cross-sectional area of ​​the fourth return oil channel can be adjusted. The cross-sectional area can be understood as the section perpendicular to the axis of the return oil channel.

[0142] refer to Figure 2 , Figures 15 to 17 As shown in the figure, the compression mechanism 200 is not shown, but the relative positions of the third throttling device 410 and the fourth throttling device 420 with the cover 100 are shown. The cover 100 is provided with a first oil guide groove 140. The oil from the first oil return port 114 flows into the third oil return channel through the first oil guide groove 140, and the oil pressure is regulated by the third throttling device 410 in the third oil return channel. The second oil return port 124 is connected to the fourth oil return channel, and the oil pressure is regulated by the fourth throttling device 420 in the fourth oil return channel.

[0143] refer to Figure 8As shown in the figure, another structure of the cover 100 is illustrated. The first oil guide groove 140 of the cover 100 is connected to the first oil return port 114 and the second oil return port 124. The first oil return pressure of the first oil return port 114 is the same as the second oil return pressure of the second oil return port 124. The oil returning from the first oil return port 114 and the second oil return port 124 can be collected in the first oil guide groove 140. Correspondingly, a fifth oil return channel can be provided in the compression mechanism 200. This fifth oil return channel is connected to the first oil guide groove 140 and returns oil to the oil chamber through this fifth oil return channel. The oil pressure at the outlet end of the fifth oil return channel needs to be the same as the oil pressure in the oil chamber. The oil pressure can be adjusted in the fifth oil return channel (e.g., by setting a throttling device or adjusting the cross-sectional area of ​​the fifth oil return channel), or the oil pressure can be adjusted only through the cover 100 to ensure stable oil return. For example, if the oil pressure is adjusted within the cover 100 to match the oil cavity, the fifth oil return channel of the compression mechanism 200 will serve to connect and guide the flow; or, if the pressures of the first oil return port 114 and the second oil return port 124 are adjusted to match, but the oil pressure is higher than the oil pressure within the oil cavity, then the fifth oil return channel of the compression mechanism 200 needs to readjust the oil pressure again.

[0144] The cross-section of each of the aforementioned oil return channels can be understood as a cross-section perpendicular to the axis of the oil return channel.

[0145] Understandably, reference Figures 10 to 17 As shown, when the cover 100 is configured with an oil return chamber 132, a gasket 300 is provided between the cover 100 and the housing of the compression mechanism 200 (the housing is the static vortex disk 210 shown in the figure). The gasket 300 closes a partial opening of the oil return chamber 132. The gasket 300 is configured with a first connecting hole 310, which connects the oil return chamber 132 and the fourth oil return channel. The size of the first connecting hole 310 is adapted to or larger than the size of the fourth oil return channel, ensuring the sealing effect between the cover 100 and the housing and preventing oil and air leakage.

[0146] The cross-sectional area of ​​the first connecting hole 310 is smaller than that of the oil return chamber 132, and the cross-sectional area of ​​the fourth oil return channel is equal to or close to that of the first connecting hole 310. The first connecting hole 310 connects the oil return chamber 132 and the fourth oil return channel, which helps to stabilize the oil return.

[0147] The gasket 300 also serves to seal the connecting channel 128. The connecting channel 128 only serves to connect the first cavity 126 and the second cavity 127. The side of the connecting channel 128 facing the compression mechanism 200 is sealed by the gasket 300 to ensure the sealing of the connecting channel 128.

[0148] Understandably, in combination Figures 15 to 19As shown, the shell (shell is the static vortex disk 210 shown in the figure) is constructed with a second oil guide groove 211, and the gasket 300 is constructed with a second connecting hole 320. The second connecting hole 320 connects the second oil guide groove 211 and the second oil return port 124. When the cover 100 is constructed with an oil return cavity 132, the second oil guide groove 211 connects the second oil return port 124 and the oil return cavity 132.

[0149] The second oil guide groove 211 is connected to the second silencing cavity 125 and, through the second silencing cavity 125, to the return oil cavity 132. Oil flowing from the second return oil port 124 is guided through the second oil guide groove 211 to the second silencing cavity 125, and then flows into the return oil cavity 132. The return oil cavity 132 is connected to the fourth return oil channel, thus achieving oil return. When the second silencing cavity 125 includes a first cavity 126 and a second cavity 127, the second oil guide groove 211 can be connected to at least one of the first cavity 126 and the second cavity 127. The first cavity 126 and the second cavity 127 can be connected to the return oil cavity 132 through a connecting channel 128, which helps simplify the structure of the cover 100 and makes processing easier.

[0150] It is understandable that when the gasket 300 is constructed with a first connecting hole 310 and a second connecting hole 320, the first connecting hole 310 connects the oil return chamber 132 and the fourth oil return channel, the stationary vortex plate 210 is constructed with a second oil guide groove 211, the second connecting hole 320 connects the second oil guide groove 211 and the second oil return port 124, and the second oil guide groove 211 connects to the oil return chamber 132 through the second cavity of the second silencing cavity 125 to realize oil return.

[0151] In the aforementioned intake, exhaust, and oil return processes of the compressor 500, the exhaust from the first compression chamber 240 is high-pressure exhaust. The gas from the first compression chamber 240 enters the first silencer chamber 115, where it undergoes noise reduction and pulsation attenuation. The first silencer chamber 115 is connected to the first oil distribution chamber 111 via two first inlets 117. Gas-liquid separation occurs within the first oil distribution chamber 111, allowing the high-pressure gas to be discharged through the first exhaust port 112, while the oil flows back through the first oil return channel 113. The first oil return port 114 at the end of the first oil return channel 113 is connected to the third oil return channel of the compression mechanism 200, allowing oil to return to the oil chamber through the compression mechanism 200. At least one of the first oil return channel 113 and the third oil return channel undergoes oil pressure regulation, ensuring that the oil pressure at the outlet of the third oil return channel matches the oil pressure within the oil chamber.

[0152] The exhaust gas from the second compression chamber 250 is medium-pressure exhaust gas. The gas from the second compression chamber 250 enters the second silencer chamber 125, where it undergoes noise reduction and pulsation attenuation. Two second compression chambers 250 are provided, and the second silencer chamber 125 has a first chamber 126 and a second chamber 127 that are connected. The gas in the first chamber 126 enters the second chamber 127 through a connecting channel 128. The second chamber 127 is connected to the second oil distribution chamber 121 through two second inlets 130. Gas-liquid separation occurs in the second oil distribution chamber 121, allowing the medium-pressure gas to be discharged through the second exhaust port 122, while the oil flows back through the second return oil channel 123. The second return oil port 124 at the end of the second return oil channel 123 is connected to the fourth return oil channel of the compression mechanism 200, allowing oil to return to the oil chamber through the compression mechanism 200. At least one of the second return oil channel 123 and the fourth return oil channel is used for oil pressure regulation, ensuring that the oil pressure at the outlet of the fourth return oil channel matches the oil pressure inside the oil chamber.

[0153] The cover 100 is also provided with an oil return chamber 132, which cooperates with the second oil guide groove 211 of the stationary vortex plate 210 to connect the first cavity 126, the second cavity 127, and the second oil return port 124. The oil returning from the second oil return port 124 flows back into the second cavity 127 through the second oil guide groove 211. The first cavity 126 and the second cavity 127 are connected to the oil return chamber 132 through the connecting channel 128, and the oil return chamber 132 is connected to the fourth oil return channel. The first cavity 126 and the second cavity 127 are required to be connected at a low position so that the oil enters the oil return chamber 132 under the action of gravity, so that the oil can better pass through the stationary vortex plate 210 into the oil cavity.

[0154] The return oil in the first oil distribution chamber 111 can be reduced from high pressure to medium pressure in the first return oil channel 113, and then to low pressure in the third return oil channel. The return oil in the second oil distribution chamber 121 can be reduced from medium pressure to low pressure in the fourth return oil channel. At this time, the second return oil channel 123 does not perform oil pressure regulation, and the two low-pressure oils merge in the oil chamber.

[0155] Alternatively, the return oil from the first oil distribution chamber 111 can be reduced from high pressure to low pressure in the first return oil channel 113, and the third return oil channel serves as a connection without pressure regulation. The return oil in the second oil distribution chamber 121 can be reduced from medium pressure to low pressure in the second return oil channel 123. The oil can be collected in the first guide oil groove 140 of the cover 100 and flow back to the oil chamber through the fifth return oil channel of the compression mechanism 200.

[0156] The cover 100, compression mechanism 200 and oil chamber mentioned above can be arranged side by side in the horizontal direction. The compression mechanism 200 is located between the cover 100 and the oil chamber, and each oil return channel is located at the lower part of the compressor 500.

[0157] The compressor 500 in the above embodiment can achieve dual exhaust and use the cover 100 for noise reduction and oil return. The compressor 500 has a simple structure and can eliminate the need for an oil separator, simplify the heat exchange system, reduce the number of parts, and reduce the size.

[0158] An embodiment of the third aspect of the present invention, in conjunction with Figure 1 , Figure 5 and Figures 10 to 19 As shown, a cover 100 for a compressor 500 is also provided. The cover 100 is constructed with a second intake port 150, a first exhaust port 112 and a second exhaust port 122. The second intake port 150 is adapted to communicate with the compression chamber in the compression mechanism 200 and supply gas into the compression chamber to supply gas to the compression mechanism 200. The cover 100 can realize the function of single intake and double exhaust.

[0159] The cover 100 may be provided with a second air intake 150 based on the above embodiments. For details, please refer to the cover 100 provided in the first aspect embodiment, which will not be repeated here.

[0160] It is understandable that the cover 100 is constructed with a second air inlet chamber 151 that is suitable for communicating with the compression chamber of the compressor 500. The second air intake port 150 is connected to the second air inlet chamber 151. Gas enters the second air inlet chamber 151 through the second air intake port 150, and then enters the second air intake chamber of the compression mechanism through the second air inlet chamber 151. The structure is simple.

[0161] The first air intake chamber can serve functions such as noise reduction and liquid separation.

[0162] Correspondingly, the compressor mechanism 200 of the compressor 500 is provided with an intake valve, which can open and close to adjust the second intake chamber of the compressor mechanism, so as to adjust the second intake chamber 151 and the second intake chamber.

[0163] The compressor 500 can be a single-suction structure with a second suction port 150, or it can have a second suction port 150 and other suction ports, forming a multi-suction structure. The structure of the compressor 500 can be configured as needed.

[0164] A fourth aspect of the present invention is described below. Figures 1 to 21As shown, a compressor 500 is provided, including: a compression mechanism 200 and a cover 100. The compression mechanism 200 is configured with a first intake port 260, a first compression chamber 240 and a second compression chamber 250. The cover 100 is sealed to the compression mechanism 200 and is configured with a second intake port 150, a first exhaust port 112 and a second exhaust port 122. The first compression chamber 240 is adapted to communicate with the first exhaust port 112, the second compression chamber 250 is adapted to communicate with the second exhaust port 122, the first compression chamber 240 is adapted to communicate with the second compression chamber 250, the first intake port 260 is adapted to communicate with the second compression chamber 250, and the second intake port 150 is adapted to communicate with the second compression chamber 250 through the first compression chamber 240. The first exhaust pressure of the first compression chamber 240 is greater than the second exhaust pressure of the second compression chamber 250.

[0165] The compressor 500, through its cooperation with the compression mechanism 200 and the cover 100, has dual exhaust ports and dual intake ports, enabling dual intake and dual exhaust. The first exhaust port 112 and the second exhaust port 122 have different exhaust pressures; the first exhaust pressure can be high pressure, and the second exhaust pressure can be medium pressure. The pressure of the gas drawn in through the two intake ports is lower than the medium pressure, allowing the gas to be pressurized within the compressor 500 before being discharged. Here, low pressure, medium pressure, and high pressure are relative concepts and do not limit specific pressure ranges.

[0166] Since both the first and second intake ports can be connected to the first and second compression chambers, even when one intake port is closed, exhaust can still be achieved through both the first and second exhaust ports, realizing dual exhaust; conversely, even when one exhaust port is closed, both the first and second intake ports can still intake, achieving dual intake. The first intake port is located in the compression mechanism, and the second intake port is located in the cover. The different positions of the two intake ports allow them to be as independent as possible, avoiding cross-contamination. The structures of the cover 100 and the compression mechanism 200 can be at least one of the above embodiments, as detailed above, and will not be repeated here. (Reference) Figures 1 to 21 As shown, the explanation will be based on the example of compressor 500 being a scroll compressor.

[0167] It is understandable that the first intake pressure of the first intake port 260 is lower than the second intake pressure of the second intake port 150, which can provide air intake at different pressures and has a wider range of applications.

[0168] The first intake pressure at the first intake port 260 can be low pressure, and the second intake pressure at the second intake port 150 can be medium pressure. Gas entering the compressor 500 from the first intake port 260 is first compressed from low pressure to medium pressure. The gas compressed to medium pressure in the second compression chamber 250 can be directly discharged (through the second exhaust port). Alternatively, the medium-pressure gas in the second compression chamber 250 enters the first compression chamber 240, where it is further compressed to high pressure. This high-pressure gas can then be discharged through the first exhaust port 112. Gas entering the compressor 500 from the second intake port 150 can be medium-pressure gas. This medium-pressure gas is compressed in the second compression chamber 250 and then sent to the first compression chamber 240, where it is compressed to high pressure and discharged.

[0169] When the intake pressures of the first intake port and the second intake port are different, the first intake port is located in the compression mechanism, and the second intake port is located in the cover. The two intake ports are separated to prevent the refrigerant drawn in by the second intake port from flowing back to the first intake port due to the different intake pressures, thus preventing refrigerant backflow. It can be understood that the compression mechanism 200 is also constructed with a first intake chamber. The first intake port 260 is connected to the second compression chamber 250 through the first intake chamber. The low-pressure gas from the first intake port 260 first enters the first intake chamber of the stationary scroll plate 210, and then enters the second compression chamber 250 through the first intake chamber. The low-pressure gas is compressed to medium-pressure gas in the second compression chamber 250. When the pressure in the second compression chamber 250 reaches the opening pressure of the corresponding valve body (first valve body 214 and second valve body 215), the gas in the second compression chamber 250 can be discharged through the second exhaust port 122. It should be noted that when the second compression chamber 250 completes the exhaust, a portion of pressurized gas remains in the second compression chamber 250. The moving scroll 230 continues to move, causing this portion of pressurized gas to enter the first compression chamber 240 and continue to be compressed in the first compression chamber 240. When the pressure in the first compression chamber 240 reaches the opening pressure of the corresponding valve body (third valve body 216), the gas in the first compression chamber 240 can be discharged through the first exhaust port 112.

[0170] The location of the first air intake 260 is not shown in the static vortex disk 210. The first air intake 260 can be set near the edge of the static vortex disk 210. The first air intake 260 can be formed by the cooperation of the static vortex disk 210 and the shell connected to the static vortex disk 210.

[0171] When the cover 100 is configured with a second air inlet chamber 151, the second air intake port 150 is connected to the second compression chamber 250 through the second air inlet chamber 151, and can be configured as a single exhaust system (the second compression chamber is closed, the second exhaust port does not exhaust, and the first compression chamber is suitable for opening to exhaust). When the gas is compressed to a set pressure in the second compression chamber 250, the second compression chamber 250 is connected to the first compression chamber 240, and the gas continues to be compressed in the first compression chamber 240. When the pressure in the first compression chamber 240 reaches the opening pressure of the corresponding valve body (third valve body 216), the gas in the first compression chamber 240 can be discharged through the first exhaust port 112.

[0172] It is understandable that compressor 500 is suitable for switching between a first state and a second state. The first state can be understood as a single suction and dual discharge state, and the second state as a dual suction and single discharge state. The state of compressor 500 can be adjusted according to the operating requirements of the heat exchange system. Specifically, the first state can be understood as a low-temperature heating state, and the second state as a cooling state. Compressor 500 can achieve both single suction-dual discharge (improved energy efficiency in low-temperature heating) and dual suction-single discharge (improved energy efficiency in cooling mode), reducing system complexity and cost, and saving installation space.

[0173] In the first state, the compressor 500 operates with the first intake port 260 open to allow air to enter. The second intake port 150 remains closed, preventing further air from entering the compressor 500. Both the first exhaust port 112 and the second exhaust port 122 can be opened for exhaust. The first intake port 260 is adapted to communicate with the second exhaust port 122 via the second compression chamber 250, and the first exhaust port 112 is adapted to communicate with the second exhaust port 240 via the second compression chamber 250 and the first compression chamber 240. When the pressurized gas in the second compression chamber 250 reaches the opening pressure of the corresponding valve body, it can be discharged as medium-pressure gas through the second exhaust port 122 to the outside of the compressor 500. Simultaneously, the remaining gas in the second compression chamber 250 enters the first compression chamber 240, where it is compressed to high pressure and discharged through the first exhaust port 112. The compressor 500 can discharge pressurized gas at different pressures.

[0174] The compressor 500 operates in a second state. The first intake port 260 and the second intake port 150 can be opened to allow air to enter the compressor 500. The second exhaust port 122 remains closed, and the first exhaust port 112 can be opened to exhaust air. The first intake port 260 is adapted to communicate with the first exhaust port 112 through the second compression chamber 250 and the first compression chamber 240. The second intake port 150 is adapted to communicate with the first exhaust port 112 through the second compression chamber 250 and the first compression chamber 240. By controlling the second exhaust port 122 to remain closed, the first intake port 260 and the second intake port 150 can deliver gas into the compressor 500 through two different paths. The intake pressures of the first intake port 260 and the second intake port 150 can be different (or the same). The gas from both the first intake port 260 and the second intake port 150 can be discharged through the first exhaust port 112, resulting in gas with the same discharge pressure.

[0175] The second intake port 150 can be a gas-liquid mixture, which can reduce the exhaust temperature of the compressor 500, ensure the lubrication effect of the lubricating oil, improve the stability of the compressor 500 and extend its service life. At the same time, it increases the mass flow rate of the refrigerant entering the condenser (first heat exchanger 610), so that the condenser can be fully utilized.

[0176] The compressor 500 mentioned above can achieve two different suction pressures or two different discharge pressures, realizing the cascade utilization of condensing temperature or evaporating temperature, and can improve energy efficiency by about 20% in both cooling and heating modes.

[0177] Understandably, reference Figure 20 As shown, when the compression mechanism 200 includes a stationary scroll 210 and a moving scroll 230, the stationary scroll 210 is sealed to the cover 100, the stationary scroll 210 has a first air intake 260, the stationary scroll 210 forms a cavity 212, the moving scroll 230 is located in the cavity 212 and is adapted to move in the cavity 212, and a first compression chamber 240 and a second compression chamber 250 are formed between the moving scroll 230 and the stationary scroll 210. The scroll compressor has a simple structure and stable performance.

[0178] Understandably, reference Figures 18 to 20As shown, two second compression chambers 250 are formed between the moving scroll 230 and the stationary scroll 210. The stationary scroll 210 is connected to a first valve body 214, a second valve body 215, and a third valve body 216. The first valve body 214 is used to adjust the connection between the second exhaust port 122 and one of the second compression chambers 250. The second valve body 215 is used to adjust the connection between the second exhaust port 122 and the other second compression chamber 250. The third valve body 216 is used to adjust the connection between the first exhaust port 112 and the first compression chamber 240. The opening and closing of each compression chamber can be adjusted by the valve body, resulting in a simple structure and convenient adjustment. The first valve body 214, the second valve body 215, and the third valve body 216 are exhaust valves. Opening one of the first valve body 214 or the second valve body 215 enables medium-pressure exhaust, while opening the third valve body 216 enables high-pressure exhaust. The opening pressures of the first valve body 214 and the second valve body 215 are the same to ensure that the exhaust pressures of the two second compression chambers 250 are the same.

[0179] Understandably, when the cover 100 is constructed with a first silencing cavity 115 and a second silencing cavity 125, the first silencing cavity 115 connects the first oil distribution cavity 111 and the first compression cavity 240, and the second silencing cavity 125 connects the second oil distribution cavity 121 and the second compression cavity 250. The second silencing cavity 125 includes a first cavity 126 and a second cavity 127. The first cavity 126 and the second cavity 127 are connected through a connecting channel 128 of the cover 100. The connecting channel 128 is located below the first silencing cavity 115. The first cavity 126 is connected to one of the second compression cavities 250, and the second cavity 127 is connected to the other second compression cavity 250. The two second compression cavities 250 can exhaust simultaneously, or one of the second compression cavities 250 can exhaust. The exhaust volume of the second exhaust port 122 can be adjusted. The structure is simple and the adjustment is flexible.

[0180] refer to Figure 21 As shown, the stationary vortex plate 210 can be connected to a fourth valve body 217. The fourth valve body 217 includes a fourth valve body 218 and a fourth valve plate 219. The fourth valve body 218 has a valve opening 220, and the fourth valve plate 219 is adapted to open and close the valve opening 220. The stationary vortex plate 210 has a connecting port 213, which is offset from the valve opening 220 and communicates with the second compression chamber 250. The fourth valve body 217 is an intake valve, and the offset communication between the connecting port 213 and the valve opening 220 helps to stabilize the intake.

[0181] like Figure 21As shown, the stationary vortex disk 210 is provided with a recessed relief surface 221 that extends inward toward the second compression chamber 250. The fourth valve plate 219 corresponds to the position of the relief surface 221. This can be understood as the fourth valve plate 219 residing within the recessed space of the stationary vortex disk 210, with the fourth valve body 218 covering one side of the fourth valve plate 219 and recessed into the recessed space. When the fourth valve body 217 is in the closed state, the valve opening 220 of the fourth valve body 218 is sealed by the fourth valve plate 219, blocking the valve opening 220 from connecting to the communication port 213, preventing the second intake port 150 from intake into the second compression chamber 250. When the fourth valve body 217 switches from the closed to the open state, the fourth valve plate 219 opens toward the relief surface 221, allowing air intake through the valve opening 220 and the communication port 213. The communication port 213 is close to the edge of the stationary vortex disk 210, resulting in more stable air intake.

[0182] The above-mentioned intake process of the second intake port 150: the gas returning from the heat exchange system enters the second compression chamber 250 (medium-pressure cylinder) through the second intake port 150. The intake gas of the second compression chamber 250 can be a gas-liquid mixture, which can reduce the exhaust temperature of the compressor 500, ensure the lubrication effect of the lubricating oil, improve the stability of the compressor 500 and extend its service life. At the same time, it increases the mass flow rate of the refrigerant entering the condenser, so that the condenser can be fully utilized.

[0183] The compressor 500 described above can be applied to heat exchange systems. Heat exchange systems offer various heat exchange methods, which can be configured according to specific needs. Below, relevant implementation methods for heat exchange systems are provided.

[0184] An embodiment of the fifth aspect of the present invention, in conjunction with Figure 22 and Figure 23 As shown, a heat exchange system is provided, including a first heat exchanger 610, a throttling component, a second heat exchanger 620 connected to form a circulation loop, and a compressor 500 of any one of the above. Since the compressor 500 has the aforementioned beneficial effects, the heat exchange system also has the aforementioned beneficial effects, as detailed above, and will not be repeated here.

[0185] The heat exchange system can be a dual-intake dual-exhaust system, a dual-intake single-exhaust system, a single-intake dual-exhaust system, or a single-intake single-exhaust system. The operating mode of the heat exchange system is not limited, and its functions are diverse. The structure of the compressor 500 can be, but is not limited to, the structure of the cover 100 and the compression mechanism 200 mentioned in the above four aspects. The various embodiments of the compressor 500 described above can be referred to the above content and will not be repeated here.

[0186] Understandably, in combination Figure 22 and Figure 23As shown, the heat exchange system also includes a third heat exchanger 630, which is connected in parallel with the second heat exchanger 620 and located upstream of the second heat exchanger 620. The throttling components include a first throttling element 710 and a second throttling element 720. The compressor 500 is adapted to switch between a first state and a second state.

[0187] The third heat exchanger 630 is connected in parallel with the second heat exchanger 620 and is located upstream of the second heat exchanger 620. This can be understood as the third heat exchanger 630 and the second heat exchanger 620 working together to perform cascade heat exchange. The fluid first exchanges heat with the third heat exchanger 630 and then exchanges heat with the second heat exchanger 620 in a secondary stage.

[0188] In some cases, the first heat exchanger 610 is located on the outdoor side, while the second heat exchanger 620 and the third heat exchanger 630 are located on the indoor side. Air heated by the third heat exchanger 630 then exchanges heat with the second heat exchanger 620, achieving cascaded heat exchange on the indoor side. In the first state, the first heat exchanger 610 acts as an evaporator, and the second and third heat exchangers 620 and 630 act as condensers. Air heated by the third heat exchanger 630 is then heated by the second heat exchanger 620, achieving cascaded heating. In the second state, the first heat exchanger 610 acts as a condenser, and the second and third heat exchangers 620 and 630 act as evaporators. Air cooled by the third heat exchanger 630 is then cooled by the second heat exchanger 620.

[0189] In the first state, the first exhaust port 112, the second heat exchanger 620, the first throttling element 710, the first heat exchanger 610, and the first intake port 260 are connected to form a first heat exchange cycle. The second exhaust port 122, the third heat exchanger 630, the second throttling element 720, the first heat exchanger 610, and the first intake port 260 are connected to form a second heat exchange cycle. Using a single-intake-dual-exhaust scroll compressor for low-temperature heating, the heat exchange system can improve energy efficiency by approximately 20%.

[0190] In the second state, the second exhaust port 122, the first heat exchanger 610, the first throttling element 710, the second heat exchanger 620, and the first intake port 260 are connected to form a third heat exchange cycle; the second exhaust port 122, the first heat exchanger 610, the second throttling element 720, the third heat exchanger 630, and the second intake port 150 are connected to form a fourth heat exchange cycle. Using a single-exhaust, dual-intake scroll compressor for refrigeration, the heat exchange system can improve energy efficiency by approximately 20%.

[0191] Understandably, the heat exchange system also includes a first regulating valve 800 and a second regulating valve 900. The first regulating valve 800 includes a first valve port, a second valve port, and a third valve port. The first valve port and the second valve port are connected to form a first passage 810, and the second valve port and the third valve port are connected to form a second passage 820. The first regulating valve 800 is adapted to open and close the first passage 810 and the second passage 820. The second regulating valve 900 includes a fourth valve port, a fifth valve port, a sixth valve port, and a seventh valve port. The fourth valve port and the fifth valve port are connected to form a third passage 910, the sixth valve port and the seventh valve port are connected to form a fourth passage 920, the fourth valve port and the sixth valve port are connected to form a fifth passage 930, and the fifth valve port and the seventh valve port are connected to form a sixth passage 940. In the heat exchange cycle, the first passage 810 connects the first exhaust port 112 and the second heat exchanger 620, and the fourth passage 920 connects the first heat exchanger 610 and the first intake port 260; in the second heat exchange cycle, the third passage 910 connects the second exhaust port 122 and the third heat exchanger 630, and the fourth passage 920 connects the first heat exchanger 610 and the first intake port 260; in the third heat exchange cycle, the fifth passage 930 connects the first exhaust port 112 and the first heat exchanger 610, and the sixth passage 940 connects the second heat exchanger 620 and the first intake port 260; in the fourth heat exchange cycle, the fifth passage 930 connects the first exhaust port 112 and the first heat exchanger 610, and the third passage 910 connects the third heat exchanger 630 and the second intake port 150.

[0192] The first regulating valve 800 can be a three-way valve, and the second regulating valve 900 can be a four-way valve. The switching between heating and cooling on the indoor side is achieved by selecting between the four-way valve and the three-way valve, resulting in a simple structure. Of course, the first regulating valve 800 is not limited to the three-way valve mentioned above; it can be a valve body that provides two or more passages, such as a four-way valve, a six-way valve, or an eight-way valve. Similarly, the second regulating valve 900 is not limited to the four-way valve mentioned above; it can be a valve body that provides four or more passages, such as a six-way valve or an eight-way valve. Alternatively, the functions of the first regulating valve 800 and the second regulating valve 900 can be achieved through a single eight-way valve. The specific structural form of the first regulating valve 800 and the second regulating valve 900 is not limited, as long as the switching of the heat exchange cycle described above can be achieved.

[0193] The compressor 500 has a first suction port 260 connected to a first liquid receiver 510 and a second suction port 150 connected to a second liquid receiver 520, through which gas-liquid separation is performed.

[0194] In the above embodiments, a single compressor 500 can function as a heat exchange system with single-suction and dual-exhaust capabilities, improving low-temperature heating efficiency, or as a heat exchange system with dual-suction and single-exhaust capabilities, improving cooling efficiency. This reduces system complexity and cost, and saves installation space. Compared to using multiple compressors, the heat exchange system of this invention uses one compressor to perform the functions of two compressors. The system structure is simple, reducing costs and saving installation space, which is beneficial for compact automotive installation spaces. The aforementioned dual-suction and dual-exhaust scroll compressor can achieve two different suction pressures or two different exhaust pressures, enabling the cascaded utilization of condensing or evaporating temperatures, thereby improving low-temperature heating efficiency or cooling efficiency by approximately 20%. Based on the design of the compressor 500's cover 100, the functions of the single-suction and dual-exhaust compressor, such as exhaust flow path, oil separation, exhaust buffering, pulsation attenuation, and noise reduction, are effectively implemented.

[0195] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A compressor, characterized in that, include: The compression mechanism is constructed with a first air intake, a first compression chamber, and a second compression chamber. The cover is sealed to the compression mechanism and is configured with a second air intake, a first air exhaust, and a second air exhaust. Wherein, the first compression chamber is adapted to communicate with the first exhaust port, the second compression chamber is adapted to communicate with the second exhaust port, the first compression chamber is adapted to communicate with the second compression chamber, the first intake port is adapted to communicate with the second compression chamber, the second intake port is adapted to communicate with the second compression chamber, and the first exhaust pressure of the first compression chamber is greater than the second exhaust pressure of the second compression chamber; The compression mechanism includes a stationary vortex disk and a moving vortex disk. The stationary vortex disk is sealed to the cover. The stationary vortex disk has a first air intake port. The stationary vortex disk forms a cavity. The moving vortex disk is located in the cavity and is adapted to move in the cavity. The moving vortex disk and the stationary vortex disk form the first compression cavity and the second compression cavity. The cover has a first silencing cavity, a second silencing cavity, a first oil distribution cavity, and a second oil distribution cavity. The first silencing cavity connects the first oil distribution cavity to the first compression cavity, and the second silencing cavity connects the second oil distribution cavity to the second compression cavity. The second silencing cavity includes a first cavity and a second cavity. The first cavity and the second cavity are connected through a connecting channel in the cover, which is located below the first silencing cavity. The first cavity is connected to one of the second compression cavities, and the second cavity is connected to the other second compression cavity. The first oil distribution cavity is connected to the first exhaust port, and the second oil distribution cavity is connected to the second exhaust port. The pressure at the first exhaust port is greater than the pressure at the second exhaust port.

2. The compressor according to claim 1, characterized in that, The first intake pressure of the first intake port is less than the second intake pressure of the second intake port. The compression mechanism also has a first air inlet chamber, and the first intake port is connected to the second compression chamber through the first air inlet chamber.

3. The compressor according to claim 1, characterized in that, The compressor is adapted to operate in a first state, wherein the first intake port is open, the second intake port is closed, the first exhaust port and the second exhaust port are open, the first intake port is adapted to communicate with the second exhaust port through the second compression chamber, and the first intake port is adapted to communicate with the first exhaust port through the second compression chamber and the first compression chamber.

4. The compressor according to claim 1, characterized in that, The compressor is adapted to operate in a second state, wherein the first intake port and the second intake port are open, the second exhaust port is closed, the first exhaust port is open, the first intake port is adapted to communicate with the second compression chamber, the first compression chamber and the first exhaust port, and the second intake port is adapted to communicate with the second compression chamber, the first compression chamber and the first exhaust port.

5. The compressor according to claim 1, characterized in that, Two second compression chambers are formed between the moving scroll and the stationary scroll. The stationary scroll is connected to a first valve body, a second valve body, and a third valve body. The first valve body is used to adjust the connection between the second exhaust port and one of the second compression chambers. The second valve body is used to adjust the connection between the second exhaust port and the other second compression chamber. The third valve body is used to adjust the connection between the first exhaust port and the first compression chamber.

6. The compressor according to claim 1, characterized in that, The stationary vortex disk is connected to a fourth valve body, which includes a fourth valve body and a fourth valve plate. The fourth valve body has a valve opening, and the fourth valve plate is adapted to open and close the valve opening. The stationary vortex disk has a communication port, which is offset from the valve opening and communicates with the second compression chamber.

7. The compressor according to any one of claims 1 to 6, characterized in that, The cover structure includes: The first oil return port and the first exhaust port are connected to the first compression chamber through the first oil distribution chamber, and the first oil distribution chamber is connected to the first oil return port. The second oil return port and the second exhaust port are connected to the second compression chamber through the second oil distribution chamber, and the second oil distribution chamber is connected to the second oil return port. The first oil return port and the second oil return port are adapted to communicate with the oil chamber inside the compressor.

8. The compressor according to claim 7, characterized in that, The compression mechanism is provided with a third oil return channel and a fourth oil return channel. The third oil return channel connects the first oil return port to the oil chamber, and the fourth oil return channel connects the second oil return port to the oil chamber. The third oil return pressure of the third oil return channel is the same as the fourth oil return pressure of the fourth oil return channel. Alternatively, the compression mechanism is provided with a fifth oil return channel, the cover is provided with a first oil guide groove, the first oil return port and the second oil return port are both connected to the first oil guide groove, the first oil return pressure of the first oil return port and the second oil return pressure of the second oil return port are the same, and the first oil guide groove is connected to the oil chamber through the fifth oil return channel.

9. The compressor according to claim 8, characterized in that, The cover has an oil return chamber, which is connected to the second silencing chamber and the second oil return port. A gasket is provided between the cover and the stationary volute of the compression mechanism. The gasket closes a partial opening of the oil return chamber. The gasket has a first connecting hole and a second connecting hole. The first connecting hole connects the oil return chamber and the fourth oil return channel. The stationary volute has a second oil guide groove. The second connecting hole connects the second oil guide groove and the second oil return port. The second oil guide groove connects the oil return chamber.

10. A heat exchange system, characterized in that, It includes a first heat exchanger, a throttling element, a second heat exchanger, and a compressor as described in any one of claims 1 to 9, which are connected to form a circulation loop.

11. The heat exchange system according to claim 10, characterized in that, It also includes a third heat exchanger, which is connected in parallel with the second heat exchanger and located upstream of the second heat exchanger; the throttling component includes a first throttling element and a second throttling element; and the compressor is adapted to switch between a first state and a second state. In the first state, the first exhaust port, the second heat exchanger, the first throttling device, the first heat exchanger, and the first intake port are connected to form a first heat exchange cycle, and the second exhaust port, the third heat exchanger, the second throttling device, the first heat exchanger, and the first intake port are connected to form a second heat exchange cycle. In the second state, the first exhaust port, the first heat exchanger, the first throttling element, the second heat exchanger, and the first intake port are connected to form a third heat exchange cycle; the first exhaust port, the first heat exchanger, the second throttling element, the third heat exchanger, and the second intake port are connected to form a fourth heat exchange cycle.

12. The heat exchange system according to claim 11, characterized in that, It also includes a first regulating valve and a second regulating valve. The first regulating valve includes a first valve port, a second valve port, and a third valve port. The first valve port and the second valve port are connected to form a first passage, and the second valve port and the third valve port are connected to form a second passage. The first regulating valve is adapted to switch the first passage and the second passage on and off. The second regulating valve includes a fourth valve port, a fifth valve port, a sixth valve port, and a seventh valve port. The fourth valve port and the fifth valve port are connected to form a third passage, the sixth valve port and the seventh valve port are connected to form a fourth passage, the fourth valve port and the sixth valve port are connected to form a fifth passage, and the fifth valve port and the seventh valve port are connected to form a sixth passage. In the first heat exchange cycle, the third passage connects the first exhaust port and the second heat exchanger, and the fourth passage connects the first heat exchanger and the first intake port. In the second heat exchange cycle, the first passage connects the second exhaust port to the third heat exchanger, and the fourth passage connects the first heat exchanger to the first intake port. In the third heat exchange cycle, the fifth passage connects the first exhaust port and the first heat exchanger, and the sixth passage connects the second heat exchanger and the first intake port. In the fourth heat exchange cycle, the fifth passage connects the first exhaust port to the first heat exchanger, and the second passage connects the third heat exchanger to the second intake port.

Images