Compressor and air conditioner

Abstract

A compressor with a fixed scroll provided with a bypass hole, an orbiting scroll located on one side of the fixed scroll and encircling a compression chamber with the fixed scroll, and a control unit. The bypass hole is in communication with the first passage, and the first passage is connected to the second passage through the switch section. When the compressor is in a first flow mode, the switch section is turned on and the compression chamber, the bypass hole, the first passage and the second passage sequentially come into communication. When the compressor is in a second flow mode, the switch section is turned off and the communication between the bypass hole and the second passage is disconnected. In this way, the SEER performance of the compressor always remains good.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims priority from Chinese Patent Application CN 202510038019.3, filed on Jan. 9, 2025, the content of which is hereby incorporated by reference into this application.TECHNICAL FIELD

[0002] The present disclosure relates to the field of compressor technology, in particular to a compressor and an air conditioner.BACKGROUND

[0003] With the continuous development of compressor technology, compressors are increasingly widely used in people's lives. When the current compressor switches between different flow modes, it has to be shut down before switching between the different flow modes, resulting in a decrease in the seasonal energy efficiency ratio (SEER) performance of the compressor. Thus, the current compressor has low SEER performance.SUMMARY

[0004] An aim of embodiments of the present application is to provide a compressor and an air conditioner, which solve the problem of the low SEER performance of the compressor.

[0005] In a first aspect, an embodiments of the application provides a compressor, including a fixed scroll provided with a bypass hole, an orbiting scroll located on one side of the fixed scroll and encircling a compression chamber with the fixed scroll, and a control unit located on the other side of the fixed scroll and including a first passage, a second passage and a switch section, the bypass hole communicating with the first passage, and the first passage being connected to the second passage through the switch section;

[0006] wherein when the compressor is in a first flow mode, the switch section is turned on and the compression chamber, the bypass hole, the first passage and the second passage sequentially come into communication, and when the compressor is in a second flow mode, the switch section is turned off and the communication between the bypass hole and the second passage is disconnected.

[0007] As an optional embodiment, the fixed scroll includes a first end cover and a first scroll body, which are fixedly connected, wherein the first end cover is arranged opposite to the orbiting scroll, the first scroll body is arranged adjacent to the orbiting scroll, and the bypass hole is provided in the first end cover.

[0008] As an optional embodiment, a surface of the first end cover facing away from the orbiting scroll is provided with a groove, which communicates with the bypass hole and in which the control unit is partially arranged.

[0009] As an optional embodiment, the control unit further includes first and second casings that are connected to each other, the second passage is provided in the second casing, the first passage is provided in the first casing, and the first casing is provided therein with a communication passage, which communicates with each of the second and first passages and in which the switch section is provided, and the first casing is partially arranged in the groove.

[0010] As an optional embodiment, a surface of the first casing facing an inner wall of the groove is provided thereon with a sealing ring, which abuts against an inner wall of the groove.

[0011] As an optional embodiment, the second casing is further provided thereon with a power supply unit for controlling the turning on or off of the switch section.

[0012] As an optional embodiment, the groove has a cross-section with a larger area than that of the cross-section of the bypass hole.

[0013] As an optional embodiment, the number of the control units and that of the bypass holes are each at least one, and the control units are arranged in a one-to-one correspondence with the bypass holes.

[0014] As an optional embodiment, the compression chamber comprises a suction chamber, an intermediate pressure chamber and a discharge chamber, and when the compressor is in the first flow mode, the switch section is turned on and the intermediate pressure chamber, the bypass hole, the first passage and the second passage sequentially come into communication.

[0015] In a second aspect, an embodiment of the present application provides an air conditioner, including the compressor as described in the first aspect.

[0016] One of the solutions described above has the following advantages or beneficial effects.

[0017] In the embodiment of the present application, the compressor can be controlled to switch between the first flow mode and the second flow mode by controlling the turning on or off of the switch section, without the need to shut down the compressor. In this way, the operation mode of the compressor switching between the first flow mode and the second flow mode is simplified, and at the same time, the compressor always has good SEET performance when it is in the first flow mode or in the second flow mode.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a structural schematic diagram of a compressor provided in an embodiment of the present application;

[0019] FIG. 2 is an exploded view of the compressor provided in the embodiment of the present application;

[0020] FIG. 3 is a structural schematic diagram of a fixed scroll and a control unit of the compressor provided in the embodiment of the present application;

[0021] FIG. 4 is a structural schematic diagram of the A-A section in FIG. 3 provided in the embodiment of the present application;

[0022] FIG. 5 is a first structural schematic diagram of the compressor provided in the embodiment of the present application in a second flow mode;

[0023] FIG. 6 is a first structural schematic diagram of the compressor provided in the embodiment of the present application in a first flow mode;

[0024] FIG. 7 is a structural schematic diagram of a fixed scroll of a compressor provided in an embodiment of the present application;

[0025] FIG. 8 is a structural schematic diagram of the B-B section in FIG. 7 provided in the embodiment of the present application;

[0026] FIG. 9 is a second structural schematic diagram of the compressor provided in the embodiment of the present application in the second flow mode;

[0027] FIG. 10 is a second structural schematic diagram of the compressor provided in the embodiment of the present application in the first flow mode.DETAILED DESCRIPTION

[0028] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are a part, but not all, of the embodiments of the present application. All other embodiments, which are obtained by those having ordinary skills in the art based on the embodiments in the present application without exercising any inventive skills, fall within the scope of protection of the present application.

[0029] Referring to FIGS. 1 to 10, FIG. 1 is a structural schematic diagram of a compressor provided in an embodiment of the present application. As shown in FIGS. 1 to 10, the embodiment of the present application provides a compressor, including a fixed scroll 10, an orbiting scroll 20, and a control unit 30. The orbiting scroll 20 is located on one side of the fixed scroll 10, and encircles a compression chamber 40 with the fixed scroll 10. The control unit 30 is located on the other side of the fixed scroll 10, and the fixed scroll 10 is provided with a bypass hole 101. The control unit 30 includes a first passage 31, a second passage 32, and a switch section (not shown in the figures). The bypass hole 101 communicates with the first passage 31, and the first passage 31 is connected to the second passage 32 through the switch section.

[0030] When the compressor is in a first flow mode, the switch section is turned on and the compression chamber 40, the bypass hole 101, the first passage 31 and the second passage 32 sequentially come into communication, and when the compressor is in a second flow mode, the switch section is turned off and the communication between the bypass hole 101 and the second passage 32 is disconnected.

[0031] The working principle of the embodiment of the present application can be formulated as follows.

[0032] In the embodiment of the present application, the compressor can be controlled to switch between the first flow mode and the second flow mode by controlling the turning on or off of the switch section, without the need to shut down the compressor. In this way, the operation mode of the compressor switching between the first flow mode and the second flow mode is simplified, and at the same time, the compressor always has good SEET performance when it is in the first flow mode or in the second flow mode.

[0033] In addition, since in the embodiment of the present application, the bypass hole 101 is provided in the fixed scroll 10, and the control unit 30 is provided in the compressor to enable the switching between the first flow mode and the second flow mode, the embodiment of the present application makes it possible to simplify the structure of the compressor and reduce the manufacturing cost thereof, as compared with at least two-stage scroll compressors in related art.

[0034] The first flow mode can be understood as a situation where the refrigeration temperature of the compressor is too low and therefore the compressor can be controlled to be in a flow regulation mode or flow-to-be-regulated mode. At this time, part of the refrigerant in the compression chamber 40 can flow out through the bypass hole 101, the first passage 31 and the second passage 32 in sequence. That is, the volume of the refrigerant in the compression chamber 40 can be dynamically adjusted, and the refrigeration temperature of the compressor can thus be increased correspondingly, and you may refer to FIG. 6 for details. C in FIG. 6 can be used to represent a flow path of the refrigerant.

[0035] The second flow mode can be understood as a situation where the temperature of the environment in which the compressor is located is too high and refrigeration through the compressor is therefore required. At this time, the compressor can be thus controlled to be in the second flow mode, which can be referred to as a full-capacity mode. At this time, the switch section is turned off and the refrigerant in the compression chamber 40 cannot pass through the bypass hole 101, the first passage 31, and the second passage 32, and it can only be used for refrigeration in the compression chamber 40, so as to improve the refrigeration efficiency. You may refer to FIG. 5 for details.

[0036] The orbiting scroll 20 can rotate relative to the fixed scroll 10. In this way, during the rotation of the orbiting scroll 20, the bypass hole 101 may be switched between two states: in one state, the bypass hole 101 communicates with the second passage 32, and in the other state, the bypass hole 101 does not communicate with the second passage 32.

[0037] The specific type of the control unit 30 will not be limited here. Optionally, the control unit 30 may be a control value and the number of the control valves may be at least one. Alternatively, the control unit 30 may be a control partition, etc.

[0038] It shall be noted that the control unit 30 may be fixedly connected in the compressor, and optionally, the control unit 30 may be fixedly connected to an inner wall of a housing of the compressor, and the way for the fixed connection will not be limited here, and it may include at least one of bolt connection, welding, and clamping, for example.

[0039] It shall be noted that the position where the bypass hole 101 is provided in the fixed scroll will not be limited here.

[0040] As an optional embodiment, and referring to FIG. 4, the fixed scroll 10 includes a first end cover 11 and a first scroll body 12, which are fixedly connected. The first end cover 11 is arranged opposite to the orbiting scroll 20, the first scroll body 12 is arranged adjacent to the orbiting scroll 20, and the bypass hole 101 is provided in the first end cover 11.

[0041] The first end cover 11 may be located between the orbiting scroll 20 and the control unit 30, and may be arranged opposite to each of the orbiting scroll 20 and the control unit 30. Optionally, the orbiting scroll 20 may also include a second end cover 21, which may be arranged opposite to the first end cover 11. Optionally, a main bearing frame 50 may be further provided inside the compressor, to support bearings in the compressor.

[0042] It shall be noted that, optionally, the compressor may be further provided therein with a floating plate assembly 70 and a rolling cover 60, both of which may be located on a side of the control unit 30 away from the fixed scroll 10, so as to enhance the limiting effect on the control unit 30.

[0043] The connection method between the first end cover 11 and the first scroll body 12 will not be limited here. Optionally, the first end cover 11 and the first scroll body 12 may be an integrally formed structure, or alternatively, they may be welded together.

[0044] In the embodiment of the present application, the bypass hole 101 is provided in the first end cover 11. In this way, when the bypass hole 101 is in communication with each of the compression chamber 40 and the first passage 31, the flow path of the refrigerant from the compression chamber 40 to the first passage 31 can be shortened, which can thus increase the outflow rate of the refrigerant from the compression chamber 40.

[0045] As an optional embodiment, and referring to FIGS. 7 and 8, a groove 111 is provided on a surface of the first end cover 11 facing away from the orbiting scroll 20, and the groove 111 communicates with the bypass hole 101 and part of the control unit 30 is arranged in the groove 111.

[0046] Part of the control unit 30 being arranged in the groove 111 may be formulated as follows: the part of the control unit 30 may be interference fit with the groove 111, so that the groove 111 can produce a fixing and limiting effect on the control unit 30, that is, the control unit 30 can be stably fixed in the groove 111.

[0047] Alternatively, part of the control unit 30 can abut against the inner wall of the groove 111. In this way, the groove 111 also can produce a fixing and limiting effect on the control unit 30, that is, the control unit 30 can be stably fixed in the groove 111.

[0048] It shall be noted that, the part of the control unit 30 arranged in the groove 111 can refer to a casing portion of the control unit 30, in which the first passage 31 may be provided, and this can make it more convenient to connect the first passage 31 to the bypass hole 101.

[0049] As another optional embodiment, the control unit 30 may be sealingly fit or welded to an end face of the fixed scroll 10, and this end face of the fixed scroll 10 may refer to the surface facing the control unit 30. In this way, the diversity and flexibility of the connection between the control unit 30 and the fixed scroll 10 are increased.

[0050] As an optional embodiment, and referring to FIG. 5, the control unit 30 further includes a first casing 301 and a second casing 302 connected to each other, the second passage 32 is provided in the second casing 302, the first passage 31 is provided in the first casing 301, and a communication passage 33, which communicates with each of the second passages 32 and the first passages 31, is provided in the first casing 301. The switch section is arranged in the communication passage 33, and the first casing 301 is partially arranged in the groove 111.

[0051] Optionally, the first and second casings 301, 302 can be arranged to intersect with each other, that is, a target tilt angle can be formed between the first and second casings 301, 302. A specific value of the target tilt angle will not be limited here, and it may be optionally 90 or 135 degrees, etc.

[0052] Alternatively, the first and second casings 301, 302 may be an integrally formed structure, which can enhance the connection strength between them.

[0053] One end of the second passage 32 may communicate with the first passage 31 through the communication passage 33, and the other end of the second passage 32 may communicate with an internal structure of the compressor, which may be the low-pressure chamber inside the compressor.

[0054] In the embodiment of the present application, the first casing 301 is partially arranged in the groove 111, which can enhance the fixing and limiting effect on the first casing 301. Meanwhile, the first and second casings 301, 302 are connected to each other, which can enhance the connection strength between them.

[0055] As an optional embodiment, a surface of the first casing 301 facing an inner wall of the groove 111 is provided thereon with a sealing ring (not shown in the figures), which abuts against the inner wall of the groove 111.

[0056] In the embodiment of the present application, the abutment of the sealing ring against the inner wall of the groove 111 can enhance the sealing effect between the first casing 301 and the inner wall of the groove 111.

[0057] It shall be noted that the surface of the first casing 301 facing the inner wall of the groove 111 is optionally provided thereon with a first accommodation slot, the inner wall of the groove 111 is provided thereon with a second accommodation slot, and a part of the sealing ring is embedded in the first accommodation slot, and the other part of the sealing ring is embedded in the second accommodation slot.

[0058] Further, alternatively, only one of the first and second accommodation slots can be provided.

[0059] The number of the sealing rings is not limited here, and may be optionally at least two, and any two adjacent ones of the at least two sealing rings may be arranged at equal intervals. In this way, the sealing effect between the first casing 301 and the inner wall of the groove 111 may be further enhanced due to the arrangement of the at least two sealing rings.

[0060] As an optional embodiment, and referring to FIG. 1, the second casing 302 is further provided thereon with a power supply unit 303 for controlling the turning on or off of the switch section.

[0061] In the embodiment of the present application, the power supply unit 303 is used to control the turning on or off of the switch section. The turning on or off of the switch section can be better controlled by the power supply unit 303, which enhances the control effect on the switch section.

[0062] Optionally, when the power supply unit 303 is powered on, the switch section is turned on and the compressor is in the first flow mode, and when it is powered off, the switch section is turned off and the compressor is in the second flow mode. Alternatively, when the power supply unit is powered off, the switch section is turned on and the compressor is in the first flow mode, and when it is powered on, the switch section is turned off and the compressor is in the second flow mode. The specific situation will not be limited here.

[0063] It shall be noted that there may be at least two switch sections and at least two bypass holes 101 and each of the switch sections is in one-to-one correspondence with one of the bypass holes 101, and optionally, the power supply units 303 may be in one-to-one correspondence with the switch sections. That is, there may be also at least two power supply units303, and each of the power supply units 303 may be connected to the switch section closest to the power supply unit 303.

[0064] Alternatively, the number of the power supply units 303 may be one, and it may be electrically connected to at least two switch sections through a power adaptor. In this way, the diversity of the arranging method for the power supply unit 303 is increased.

[0065] It shall be noted that the power supply unit 303 can be fixed on an outer surface of the housing of the compressor.

[0066] As an optional embodiment, the groove 111 has a cross-section with a larger area than that of the cross-section of the bypass hole 101.

[0067] In the embodiment of the present application, the area of the cross-section of the groove 111 is larger than that of the bypass hole 101. In this way, this embodiment can prevent the occurrence of a phenomenon in which the control unit 30 slips into the bypass hole 101, as compared with the embodiment in which the area of the cross-section of the groove 111 is smaller than that of the bypass hole 101. That is, this embodiment can further enhance the limiting effect on the control unit 30.

[0068] As an optional embodiment, and referring to FIGS. 2 and 3, the number of the control unit(s) 30 and that of the bypass hole(s) 101 are each at least one, and the control units 30 are arranged in one-to-one correspondence with the bypass holes 101.

[0069] The position where the control unit 30 is provided will not be limited here. Optionally, the number of the control units 30 may be one, or alternatively, the number of the control units 30 may be two, and these two control units 30 can be arranged opposite to each other and located on two opposite side edges of the fixed scroll 10. Moreover, the bypass holes 101 may be arranged in one-to-one correspondence with the control units 30, that is, they may be also located near the two opposite side edges of the fixed scroll 10, respectively.

[0070] In an embodiment of the present application, when at least two control units 30 are provided, each of the control units 30 may be used to control the outflow of the refrigerant from the compression chamber 40, and you may refer to the description given above for the specific principle. In this way, the efficiency of the outflow of the refrigerant from the compression chamber 40 can be further improved.

[0071] As an optional embodiment, and referring to FIGS. 9 and 10, the compression chamber 40 includes a suction chamber 41, an intermediate pressure chamber 42 and a discharge chamber 43, and when the compressor is in the first flow mode, the switch section is turned on and the intermediate pressure chamber 42, the bypass hole 101, the first passage 31 and the second passage 32 sequentially come into communication.

[0072] Optionally, referring to FIGS. 9 and 10, the suction chamber 41, the intermediate pressure chamber 42, and the discharge chamber 43 can be sequentially spaced apart by a back plate 44, and the suction chamber 41 can be connected to the intermediate pressure chamber 42 through a first connection, and the intermediate pressure chamber 42 can be connected to the discharge chamber 43 through a second connection.

[0073] Alternatively, the suction chamber 41, the intermediate pressure chamber 42 and the discharge chamber 43 may sequentially come into communication.

[0074] In this embodiment of the present application, referring to FIG. 10, when the compressor is in the first flow mode, the switch section is turned on and the intermediate pressure chamber 42, the bypass hole 101, the first passage 31, and the second passage 32 sequentially come into communication, which can facilitate the flow of the refrigerant out of the intermediate pressure chamber 42, and further improve the outflow rate of the refrigerant from the compression chamber 40.

[0075] It shall be noted that you may refer to FIG. 9 for the condition in which the compressor is in the second flow mode.

[0076] Optionally, an embodiment of the present application further provides an air conditioner, which includes the compressor in the above-described embodiments. Since the air conditioner in the embodiment of the present application includes the compressor in the above-mentioned embodiment, it has the same beneficial technical effects as the above-described embodiment, and you may refer to the corresponding description in the embodiments as described above for the specific structure of the compressor, and it will not be repeated here.

[0077] The above are merely specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person familiar with this technical field can easily conceive of changes or replacements within the technical scope of the disclosure of the present application, which shall fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

Examples

Embodiment Construction

[0028]Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are a part, but not all, of the embodiments of the present application. All other embodiments, which are obtained by those having ordinary skills in the art based on the embodiments in the present application without exercising any inventive skills, fall within the scope of protection of the present application.

[0029]Referring to FIGS. 1 to 10, FIG. 1 is a structural schematic diagram of a compressor provided in an embodiment of the present application. As shown in FIGS. 1 to 10, the embodiment of the present application provides a compressor, including a fixed scroll 10, an orbiting scroll 20, and a control unit 30. The orbiting scroll 20 is located on one side of the fixed scroll 10, and encircles a compression chamber 40 with the fixed ...

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims priority from Chinese Patent Application CN 202510038019.3, filed on Jan. 9, 2025, the content of which is hereby incorporated by reference into this application.TECHNICAL FIELD

[0002] The present disclosure relates to the field of compressor technology, in particular to a compressor and an air conditioner.BACKGROUND

[0003] With the continuous development of compressor technology, compressors are increasingly widely used in people's lives. When the current compressor switches between different flow modes, it has to be shut down before switching between the different flow modes, resulting in a decrease in the seasonal energy efficiency ratio (SEER) performance of the compressor. Thus, the current compressor has low SEER performance.SUMMARY

[0004] An aim of embodiments of the present application is to provide a compressor and an air conditioner, which solve the problem of the low SEER performance of the compressor.

[0005] In a first aspect, an embodiments of the application provides a compressor, including a fixed scroll provided with a bypass hole, an orbiting scroll located on one side of the fixed scroll and encircling a compression chamber with the fixed scroll, and a control unit located on the other side of the fixed scroll and including a first passage, a second passage and a switch section, the bypass hole communicating with the first passage, and the first passage being connected to the second passage through the switch section;

[0006] wherein when the compressor is in a first flow mode, the switch section is turned on and the compression chamber, the bypass hole, the first passage and the second passage sequentially come into communication, and when the compressor is in a second flow mode, the switch section is turned off and the communication between the bypass hole and the second passage is disconnected.

[0007] As an optional embodiment, the fixed scroll includes a first end cover and a first scroll body, which are fixedly connected, wherein the first end cover is arranged opposite to the orbiting scroll, the first scroll body is arranged adjacent to the orbiting scroll, and the bypass hole is provided in the first end cover.

[0008] As an optional embodiment, a surface of the first end cover facing away from the orbiting scroll is provided with a groove, which communicates with the bypass hole and in which the control unit is partially arranged.

[0009] As an optional embodiment, the control unit further includes first and second casings that are connected to each other, the second passage is provided in the second casing, the first passage is provided in the first casing, and the first casing is provided therein with a communication passage, which communicates with each of the second and first passages and in which the switch section is provided, and the first casing is partially arranged in the groove.

[0010] As an optional embodiment, a surface of the first casing facing an inner wall of the groove is provided thereon with a sealing ring, which abuts against an inner wall of the groove.

[0011] As an optional embodiment, the second casing is further provided thereon with a power supply unit for controlling the turning on or off of the switch section.

[0012] As an optional embodiment, the groove has a cross-section with a larger area than that of the cross-section of the bypass hole.

[0013] As an optional embodiment, the number of the control units and that of the bypass holes are each at least one, and the control units are arranged in a one-to-one correspondence with the bypass holes.

[0014] As an optional embodiment, the compression chamber comprises a suction chamber, an intermediate pressure chamber and a discharge chamber, and when the compressor is in the first flow mode, the switch section is turned on and the intermediate pressure chamber, the bypass hole, the first passage and the second passage sequentially come into communication.

[0015] In a second aspect, an embodiment of the present application provides an air conditioner, including the compressor as described in the first aspect.

[0016] One of the solutions described above has the following advantages or beneficial effects.

[0017] In the embodiment of the present application, the compressor can be controlled to switch between the first flow mode and the second flow mode by controlling the turning on or off of the switch section, without the need to shut down the compressor. In this way, the operation mode of the compressor switching between the first flow mode and the second flow mode is simplified, and at the same time, the compressor always has good SEET performance when it is in the first flow mode or in the second flow mode.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a structural schematic diagram of a compressor provided in an embodiment of the present application;

[0019] FIG. 2 is an exploded view of the compressor provided in the embodiment of the present application;

[0020] FIG. 3 is a structural schematic diagram of a fixed scroll and a control unit of the compressor provided in the embodiment of the present application;

[0021] FIG. 4 is a structural schematic diagram of the A-A section in FIG. 3 provided in the embodiment of the present application;

[0022] FIG. 5 is a first structural schematic diagram of the compressor provided in the embodiment of the present application in a second flow mode;

[0023] FIG. 6 is a first structural schematic diagram of the compressor provided in the embodiment of the present application in a first flow mode;

[0024] FIG. 7 is a structural schematic diagram of a fixed scroll of a compressor provided in an embodiment of the present application;

[0025] FIG. 8 is a structural schematic diagram of the B-B section in FIG. 7 provided in the embodiment of the present application;

[0026] FIG. 9 is a second structural schematic diagram of the compressor provided in the embodiment of the present application in the second flow mode;

[0027] FIG. 10 is a second structural schematic diagram of the compressor provided in the embodiment of the present application in the first flow mode.DETAILED DESCRIPTION

[0028] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are a part, but not all, of the embodiments of the present application. All other embodiments, which are obtained by those having ordinary skills in the art based on the embodiments in the present application without exercising any inventive skills, fall within the scope of protection of the present application.

[0029] Referring to FIGS. 1 to 10, FIG. 1 is a structural schematic diagram of a compressor provided in an embodiment of the present application. As shown in FIGS. 1 to 10, the embodiment of the present application provides a compressor, including a fixed scroll 10, an orbiting scroll 20, and a control unit 30. The orbiting scroll 20 is located on one side of the fixed scroll 10, and encircles a compression chamber 40 with the fixed scroll 10. The control unit 30 is located on the other side of the fixed scroll 10, and the fixed scroll 10 is provided with a bypass hole 101. The control unit 30 includes a first passage 31, a second passage 32, and a switch section (not shown in the figures). The bypass hole 101 communicates with the first passage 31, and the first passage 31 is connected to the second passage 32 through the switch section.

[0030] When the compressor is in a first flow mode, the switch section is turned on and the compression chamber 40, the bypass hole 101, the first passage 31 and the second passage 32 sequentially come into communication, and when the compressor is in a second flow mode, the switch section is turned off and the communication between the bypass hole 101 and the second passage 32 is disconnected.

[0031] The working principle of the embodiment of the present application can be formulated as follows.

[0032] In the embodiment of the present application, the compressor can be controlled to switch between the first flow mode and the second flow mode by controlling the turning on or off of the switch section, without the need to shut down the compressor. In this way, the operation mode of the compressor switching between the first flow mode and the second flow mode is simplified, and at the same time, the compressor always has good SEET performance when it is in the first flow mode or in the second flow mode.

[0033] In addition, since in the embodiment of the present application, the bypass hole 101 is provided in the fixed scroll 10, and the control unit 30 is provided in the compressor to enable the switching between the first flow mode and the second flow mode, the embodiment of the present application makes it possible to simplify the structure of the compressor and reduce the manufacturing cost thereof, as compared with at least two-stage scroll compressors in related art.

[0034] The first flow mode can be understood as a situation where the refrigeration temperature of the compressor is too low and therefore the compressor can be controlled to be in a flow regulation mode or flow-to-be-regulated mode. At this time, part of the refrigerant in the compression chamber 40 can flow out through the bypass hole 101, the first passage 31 and the second passage 32 in sequence. That is, the volume of the refrigerant in the compression chamber 40 can be dynamically adjusted, and the refrigeration temperature of the compressor can thus be increased correspondingly, and you may refer to FIG. 6 for details. C in FIG. 6 can be used to represent a flow path of the refrigerant.

[0035] The second flow mode can be understood as a situation where the temperature of the environment in which the compressor is located is too high and refrigeration through the compressor is therefore required. At this time, the compressor can be thus controlled to be in the second flow mode, which can be referred to as a full-capacity mode. At this time, the switch section is turned off and the refrigerant in the compression chamber 40 cannot pass through the bypass hole 101, the first passage 31, and the second passage 32, and it can only be used for refrigeration in the compression chamber 40, so as to improve the refrigeration efficiency. You may refer to FIG. 5 for details.

[0036] The orbiting scroll 20 can rotate relative to the fixed scroll 10. In this way, during the rotation of the orbiting scroll 20, the bypass hole 101 may be switched between two states: in one state, the bypass hole 101 communicates with the second passage 32, and in the other state, the bypass hole 101 does not communicate with the second passage 32.

[0037] The specific type of the control unit 30 will not be limited here. Optionally, the control unit 30 may be a control value and the number of the control valves may be at least one. Alternatively, the control unit 30 may be a control partition, etc.

[0038] It shall be noted that the control unit 30 may be fixedly connected in the compressor, and optionally, the control unit 30 may be fixedly connected to an inner wall of a housing of the compressor, and the way for the fixed connection will not be limited here, and it may include at least one of bolt connection, welding, and clamping, for example.

[0039] It shall be noted that the position where the bypass hole 101 is provided in the fixed scroll will not be limited here.

[0040] As an optional embodiment, and referring to FIG. 4, the fixed scroll 10 includes a first end cover 11 and a first scroll body 12, which are fixedly connected. The first end cover 11 is arranged opposite to the orbiting scroll 20, the first scroll body 12 is arranged adjacent to the orbiting scroll 20, and the bypass hole 101 is provided in the first end cover 11.

[0041] The first end cover 11 may be located between the orbiting scroll 20 and the control unit 30, and may be arranged opposite to each of the orbiting scroll 20 and the control unit 30. Optionally, the orbiting scroll 20 may also include a second end cover 21, which may be arranged opposite to the first end cover 11. Optionally, a main bearing frame 50 may be further provided inside the compressor, to support bearings in the compressor.

[0042] It shall be noted that, optionally, the compressor may be further provided therein with a floating plate assembly 70 and a rolling cover 60, both of which may be located on a side of the control unit 30 away from the fixed scroll 10, so as to enhance the limiting effect on the control unit 30.

[0043] The connection method between the first end cover 11 and the first scroll body 12 will not be limited here. Optionally, the first end cover 11 and the first scroll body 12 may be an integrally formed structure, or alternatively, they may be welded together.

[0044] In the embodiment of the present application, the bypass hole 101 is provided in the first end cover 11. In this way, when the bypass hole 101 is in communication with each of the compression chamber 40 and the first passage 31, the flow path of the refrigerant from the compression chamber 40 to the first passage 31 can be shortened, which can thus increase the outflow rate of the refrigerant from the compression chamber 40.

[0045] As an optional embodiment, and referring to FIGS. 7 and 8, a groove 111 is provided on a surface of the first end cover 11 facing away from the orbiting scroll 20, and the groove 111 communicates with the bypass hole 101 and part of the control unit 30 is arranged in the groove 111.

[0046] Part of the control unit 30 being arranged in the groove 111 may be formulated as follows: the part of the control unit 30 may be interference fit with the groove 111, so that the groove 111 can produce a fixing and limiting effect on the control unit 30, that is, the control unit 30 can be stably fixed in the groove 111.

[0047] Alternatively, part of the control unit 30 can abut against the inner wall of the groove 111. In this way, the groove 111 also can produce a fixing and limiting effect on the control unit 30, that is, the control unit 30 can be stably fixed in the groove 111.

[0048] It shall be noted that, the part of the control unit 30 arranged in the groove 111 can refer to a casing portion of the control unit 30, in which the first passage 31 may be provided, and this can make it more convenient to connect the first passage 31 to the bypass hole 101.

[0049] As another optional embodiment, the control unit 30 may be sealingly fit or welded to an end face of the fixed scroll 10, and this end face of the fixed scroll 10 may refer to the surface facing the control unit 30. In this way, the diversity and flexibility of the connection between the control unit 30 and the fixed scroll 10 are increased.

[0050] As an optional embodiment, and referring to FIG. 5, the control unit 30 further includes a first casing 301 and a second casing 302 connected to each other, the second passage 32 is provided in the second casing 302, the first passage 31 is provided in the first casing 301, and a communication passage 33, which communicates with each of the second passages 32 and the first passages 31, is provided in the first casing 301. The switch section is arranged in the communication passage 33, and the first casing 301 is partially arranged in the groove 111.

[0051] Optionally, the first and second casings 301, 302 can be arranged to intersect with each other, that is, a target tilt angle can be formed between the first and second casings 301, 302. A specific value of the target tilt angle will not be limited here, and it may be optionally 90 or 135 degrees, etc.

[0052] Alternatively, the first and second casings 301, 302 may be an integrally formed structure, which can enhance the connection strength between them.

[0053] One end of the second passage 32 may communicate with the first passage 31 through the communication passage 33, and the other end of the second passage 32 may communicate with an internal structure of the compressor, which may be the low-pressure chamber inside the compressor.

[0054] In the embodiment of the present application, the first casing 301 is partially arranged in the groove 111, which can enhance the fixing and limiting effect on the first casing 301. Meanwhile, the first and second casings 301, 302 are connected to each other, which can enhance the connection strength between them.

[0055] As an optional embodiment, a surface of the first casing 301 facing an inner wall of the groove 111 is provided thereon with a sealing ring (not shown in the figures), which abuts against the inner wall of the groove 111.

[0056] In the embodiment of the present application, the abutment of the sealing ring against the inner wall of the groove 111 can enhance the sealing effect between the first casing 301 and the inner wall of the groove 111.

[0057] It shall be noted that the surface of the first casing 301 facing the inner wall of the groove 111 is optionally provided thereon with a first accommodation slot, the inner wall of the groove 111 is provided thereon with a second accommodation slot, and a part of the sealing ring is embedded in the first accommodation slot, and the other part of the sealing ring is embedded in the second accommodation slot.

[0058] Further, alternatively, only one of the first and second accommodation slots can be provided.

[0059] The number of the sealing rings is not limited here, and may be optionally at least two, and any two adjacent ones of the at least two sealing rings may be arranged at equal intervals. In this way, the sealing effect between the first casing 301 and the inner wall of the groove 111 may be further enhanced due to the arrangement of the at least two sealing rings.

[0060] As an optional embodiment, and referring to FIG. 1, the second casing 302 is further provided thereon with a power supply unit 303 for controlling the turning on or off of the switch section.

[0061] In the embodiment of the present application, the power supply unit 303 is used to control the turning on or off of the switch section. The turning on or off of the switch section can be better controlled by the power supply unit 303, which enhances the control effect on the switch section.

[0062] Optionally, when the power supply unit 303 is powered on, the switch section is turned on and the compressor is in the first flow mode, and when it is powered off, the switch section is turned off and the compressor is in the second flow mode. Alternatively, when the power supply unit is powered off, the switch section is turned on and the compressor is in the first flow mode, and when it is powered on, the switch section is turned off and the compressor is in the second flow mode. The specific situation will not be limited here.

[0063] It shall be noted that there may be at least two switch sections and at least two bypass holes 101 and each of the switch sections is in one-to-one correspondence with one of the bypass holes 101, and optionally, the power supply units 303 may be in one-to-one correspondence with the switch sections. That is, there may be also at least two power supply units303, and each of the power supply units 303 may be connected to the switch section closest to the power supply unit 303.

[0064] Alternatively, the number of the power supply units 303 may be one, and it may be electrically connected to at least two switch sections through a power adaptor. In this way, the diversity of the arranging method for the power supply unit 303 is increased.

[0065] It shall be noted that the power supply unit 303 can be fixed on an outer surface of the housing of the compressor.

[0066] As an optional embodiment, the groove 111 has a cross-section with a larger area than that of the cross-section of the bypass hole 101.

[0067] In the embodiment of the present application, the area of the cross-section of the groove 111 is larger than that of the bypass hole 101. In this way, this embodiment can prevent the occurrence of a phenomenon in which the control unit 30 slips into the bypass hole 101, as compared with the embodiment in which the area of the cross-section of the groove 111 is smaller than that of the bypass hole 101. That is, this embodiment can further enhance the limiting effect on the control unit 30.

[0068] As an optional embodiment, and referring to FIGS. 2 and 3, the number of the control unit(s) 30 and that of the bypass hole(s) 101 are each at least one, and the control units 30 are arranged in one-to-one correspondence with the bypass holes 101.

[0069] The position where the control unit 30 is provided will not be limited here. Optionally, the number of the control units 30 may be one, or alternatively, the number of the control units 30 may be two, and these two control units 30 can be arranged opposite to each other and located on two opposite side edges of the fixed scroll 10. Moreover, the bypass holes 101 may be arranged in one-to-one correspondence with the control units 30, that is, they may be also located near the two opposite side edges of the fixed scroll 10, respectively.

[0070] In an embodiment of the present application, when at least two control units 30 are provided, each of the control units 30 may be used to control the outflow of the refrigerant from the compression chamber 40, and you may refer to the description given above for the specific principle. In this way, the efficiency of the outflow of the refrigerant from the compression chamber 40 can be further improved.

[0071] As an optional embodiment, and referring to FIGS. 9 and 10, the compression chamber 40 includes a suction chamber 41, an intermediate pressure chamber 42 and a discharge chamber 43, and when the compressor is in the first flow mode, the switch section is turned on and the intermediate pressure chamber 42, the bypass hole 101, the first passage 31 and the second passage 32 sequentially come into communication.

[0072] Optionally, referring to FIGS. 9 and 10, the suction chamber 41, the intermediate pressure chamber 42, and the discharge chamber 43 can be sequentially spaced apart by a back plate 44, and the suction chamber 41 can be connected to the intermediate pressure chamber 42 through a first connection, and the intermediate pressure chamber 42 can be connected to the discharge chamber 43 through a second connection.

[0073] Alternatively, the suction chamber 41, the intermediate pressure chamber 42 and the discharge chamber 43 may sequentially come into communication.

[0074] In this embodiment of the present application, referring to FIG. 10, when the compressor is in the first flow mode, the switch section is turned on and the intermediate pressure chamber 42, the bypass hole 101, the first passage 31, and the second passage 32 sequentially come into communication, which can facilitate the flow of the refrigerant out of the intermediate pressure chamber 42, and further improve the outflow rate of the refrigerant from the compression chamber 40.

[0075] It shall be noted that you may refer to FIG. 9 for the condition in which the compressor is in the second flow mode.

[0076] Optionally, an embodiment of the present application further provides an air conditioner, which includes the compressor in the above-described embodiments. Since the air conditioner in the embodiment of the present application includes the compressor in the above-mentioned embodiment, it has the same beneficial technical effects as the above-described embodiment, and you may refer to the corresponding description in the embodiments as described above for the specific structure of the compressor, and it will not be repeated here.

[0077] The above are merely specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person familiar with this technical field can easily conceive of changes or replacements within the technical scope of the disclosure of the present application, which shall fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

Examples

Embodiment Construction

[0028]Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are a part, but not all, of the embodiments of the present application. All other embodiments, which are obtained by those having ordinary skills in the art based on the embodiments in the present application without exercising any inventive skills, fall within the scope of protection of the present application.

[0029]Referring to FIGS. 1 to 10, FIG. 1 is a structural schematic diagram of a compressor provided in an embodiment of the present application. As shown in FIGS. 1 to 10, the embodiment of the present application provides a compressor, including a fixed scroll 10, an orbiting scroll 20, and a control unit 30. The orbiting scroll 20 is located on one side of the fixed scroll 10, and encircles a compression chamber 40 with the fixed ...

Claims

1. A compressor, characterized by comprising a fixed scroll provided with a bypass hole, an orbiting scroll located on one side of the fixed scroll and encircling a compression chamber with the fixed scroll, and a control unit located on the other side of the fixed scroll and comprising a first passage, a second passage and a switch section, the bypass hole communicating with the first passage, and the first passage being connected to the second passage through the switch section;wherein when the compressor is in a first flow mode, the switch section is turned on and the compression chamber, the bypass hole, the first passage and the second passage sequentially come into communication, and when the compressor is in a second flow mode, the switch section is turned off and the communication between the bypass hole and the second passage is disconnected.

2. The compressor according to claim 1, characterized in that the fixed scroll comprises a first end cover and a first scroll body, which are fixedly connected, wherein the first end cover is arranged opposite to the orbiting scroll, the first scroll body is arranged adjacent to the orbiting scroll, and the bypass hole is provided in the first end cover.

3. The compressor according to claim 2, characterized in that a surface of the first end cover facing away from the orbiting scroll is provided with a groove, which communicates with the bypass hole, and in which the control unit is partially arranged.

4. The compressor according to claim 3, characterized in that the control unit further comprises first and second casings that are connected to each other, the second passage is provided in the second casing, the first passage is provided in the first casing, and the first casing is provided therein with a communication passage, which communicates with each of the second and first passages and in which the switch section is provided, and the first casing is partially arranged in the groove.

5. The compressor according to claim 4, characterized in that a surface of the first casing facing an inner wall of the groove is provided thereon with a sealing ring, which abuts against the inner wall of the groove.

6. The compressor according to claim 4, characterized in that the second casing is further provided thereon with a power supply unit for controlling the turning on or off of the switch section.

7. The compressor according to claim 3, characterized in that the groove has a cross-section with a larger area than that of the cross-section of the bypass hole.

8. The compressor according to claim 1, characterized in that the number of the control units and that of the bypass holes are each at least one, and the control units are arranged in a one-to-one correspondence with the bypass holes.

9. The compressor according to claim 1, characterized in that the compression chamber comprises a suction chamber, an intermediate pressure chamber and a discharge chamber, and when the compressor is in the first flow mode, the switch section is turned on and the intermediate pressure chamber, the bypass hole, the first passage and the second passage sequentially come into communication.

10. An air conditioner, characterized by comprising the compressor as claimed claim 1.

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