Air conditioner outdoor unit, air conditioner and heat pump equipment

Abstract

The utility model discloses an air conditioner outdoor unit, air conditioner and heat pump equipment, the air conditioner outdoor unit includes: the casing, and the casing forms with the installation space, heat transfer device, heat transfer device includes plate heat exchanger and throttler subassembly, and throttler subassembly includes valve island and valve piece, and the refrigerant flow channel is formed in valve island, and valve island is fixed in plate heat exchanger and is located in plate heat exchanger thickness direction's one side, and the refrigerant flow channel is communicated with the heat transfer channel of plate heat exchanger, and valve piece sets up on valve island and is communicated with the refrigerant flow channel, and heat transfer device installs in the installation space, fixed subassembly, and fixed subassembly fixes heat transfer device in the installation space, and at least one of the side of plate heat exchanger away from throttler subassembly and the side of plate heat exchanger close to throttler subassembly is supported in fixed subassembly. According to the air conditioner outdoor unit of the utility model, realize plate heat exchanger and throttler subassembly integration, optimize air conditioner outdoor unit space layout, reduce the volume.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment, and in particular to an outdoor air conditioning unit, an air conditioner, and a heat pump device. Background Technology

[0002] In air conditioners, plate heat exchangers are connected to expansion valves (or solenoid valves) to circulate the heat exchange medium. In related technologies, plate heat exchangers and expansion valves are usually connected by pipes, resulting in a bulky structure in the area where the plate heat exchanger and expansion valve are located. This leads to a large volume, occupies a large space in the outdoor unit of the air conditioner, and requires a large installation space, making installation and operation difficult. Summary of the Invention

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an outdoor air conditioner unit that integrates a plate heat exchanger and a throttling device assembly, avoiding interference between the fixing components and the throttling device assembly, effectively optimizing the spatial layout of the outdoor air conditioner unit, and reducing the size of the outdoor air conditioner unit.

[0004] This utility model also proposes an air conditioner, which includes the above-mentioned outdoor unit.

[0005] This utility model also proposes a heat pump device, which includes the above-mentioned outdoor unit of an air conditioner.

[0006] An outdoor air conditioning unit according to an embodiment of the present invention includes: a housing having an installation space; a heat exchange device including a plate heat exchanger and a throttling device assembly, the throttling device assembly including a valve island and a valve, the valve island having a refrigerant flow channel, the valve island being fixed to the plate heat exchanger and disposed on one side of the plate heat exchanger in the thickness direction, the refrigerant flow channel communicating with the heat exchange channel of the plate heat exchanger, the valve being disposed on the valve island and communicating with the refrigerant flow channel, the heat exchange device being installed in the installation space; and a fixing assembly fixing the heat exchange device in the installation space, at least one of the side of the plate heat exchanger away from the throttling device assembly and the side of the plate heat exchanger close to the throttling device assembly being supported by the fixing assembly, the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity being ω1, where 0°≤ω1≤45°.

[0007] According to an embodiment of the present invention, an outdoor air conditioning unit has an installation space formed by a casing. The heat exchange device includes a plate heat exchanger and a throttling device assembly. The throttling device assembly includes a valve island and valves. A refrigerant flow channel is formed in the valve island. The valve island is fixed to the plate heat exchanger and located on one side of the plate heat exchanger in the thickness direction. The refrigerant flow channel is connected to the heat exchange flow channel of the plate heat exchanger. The valves are located on the valve island and are connected to the refrigerant flow channel. The plate heat exchanger and the throttling device assembly are integrated, which can reduce the length of the connecting pipe and the welding points of the connecting pipe between the throttling device assembly and the plate heat exchanger, reduce the risk of welding leakage, and reduce the overall volume or space occupied by the heat exchange device. The heat exchanger is installed in the installation space, and the fixing assembly fixes the heat exchanger in the installation space. At least one of the sides of the plate heat exchanger away from the throttling device assembly and the side of the plate heat exchanger close to the throttling device assembly is supported by the fixing assembly, making the overall structure of the heat exchanger and the fixing assembly more compact and reasonable, reducing the volume of the heat exchanger and the fixing assembly, and facilitating the installation of the heat exchanger in the outdoor unit of the air conditioner and adjustment of the valve core orientation so that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, 0°≤ω1≤45°. Meanwhile, by ensuring that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, where 0°≤ω1≤45°, the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is relatively uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is relatively uniform, avoiding excessive local wear of the valve core, improving the operational reliability and lifespan of the valve, reducing noise, and thus improving the reliability of the heat exchange device and the outdoor unit of the air conditioner.

[0008] In some embodiments of this utility model, the housing includes an outer shell, the installation space is formed inside the outer shell, and the fixing component includes the outer shell or is fixed to the outer shell; or, the housing includes an outer shell and a partition plate disposed inside the outer shell, the installation space is formed inside the outer shell, the partition plate divides the installation space into a fan chamber and a compressor chamber, the heat exchange device is installed in the compressor chamber, and the fixing component includes the partition plate or is fixed to the partition plate.

[0009] In some embodiments of this utility model, the two ends of the fixing component are respectively fixedly connected to the outer shell and the middle partition.

[0010] In some embodiments of this utility model, the outer casing includes a chassis, and the outdoor unit of the air conditioner further includes a support assembly. The support assembly is fixed on the chassis, and the fixing assembly is fixedly connected to the casing through the support assembly.

[0011] In some embodiments of this utility model, the outdoor unit of the air conditioner further includes at least one of a bracket, a gas-liquid separator, a liquid storage tank, a high-pressure tank, and an expansion tank, a compressor, and an outdoor fan. The compressor is installed in the compressor cavity, the outdoor fan is installed in the fan cavity, and the support assembly is installed in the compressor cavity. The support assembly includes at least one of the bracket, the gas-liquid separator, the liquid storage tank, the high-pressure tank, and the expansion tank.

[0012] In some embodiments of this utility model, the fixing assembly includes a fixing bracket and a fixing member. The fixing bracket is located on the side of the plate heat exchanger away from the throttling device assembly. The fixing member is connected to the fixing bracket and defines a fixing space. The plate heat exchanger passes through the fixing space. The side of the plate heat exchanger away from the throttling device assembly abuts against the fixing bracket to be supported by the fixing bracket and / or the side of the plate heat exchanger near the throttling device assembly abuts against the fixing member to be supported by the fixing member.

[0013] In some embodiments of this utility model, the fixing member includes: a first covering portion located on the side of the plate heat exchanger away from the fixing bracket, the first covering portion extending along the width direction of the plate heat exchanger; and two fixing portions, each connected to both ends of the first covering portion along its length direction, the fixing portions being connected to the fixing bracket, the first covering portion, the two fixing portions, and the fixing bracket forming the fixing space.

[0014] In some embodiments of this utility model, along the thickness direction of the plate heat exchanger, the distance between the first covering part and the plate heat exchanger is T, and satisfies 0≤T≤2mm; or, the two ends of the length direction of the first covering part extend beyond the two ends of the width direction of the plate heat exchanger.

[0015] In some embodiments of this utility model, the fixing part includes: a second covering part, which extends along the thickness direction of the plate heat exchanger and is connected at one end to the first covering part; a connecting part, one end of which is connected to the end of the second covering part away from the first covering part, the other ends of the two connecting parts extending in a direction away from each other, and the connecting part being connected to the fixing bracket.

[0016] In some embodiments of this utility model, the two ends of the fixing member along the width direction of the plate heat exchanger are connected to the fixing bracket by fasteners.

[0017] In some embodiments of this utility model, the fixing member has hooks at both ends along the width direction of the plate heat exchanger, and the fixing bracket has a hanging groove that cooperates with the hooks; and / or, the fixing bracket includes a first positioning structure, and the plate heat exchanger is positioned and installed on the side away from the valve island on the first positioning structure, the first positioning structure including a positioning groove; and / or, the fixing bracket includes a support plate, and the support plate is supported below the plate heat exchanger.

[0018] In some embodiments of this utility model, the fixing member is an integral piece; and / or, the plate heat exchanger includes a plurality of heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates, the first plate including a planar portion, the valve island disposed on the planar portion, and the fixing member being fixedly connected to the second plate.

[0019] In some embodiments of this utility model, the plate heat exchanger has a first heat exchange channel and a second heat exchange channel that are mutually separated and exchange heat with each other. The plate heat exchanger has a first interface, a second interface, a third interface, and a fourth interface on the side away from the fixed support. The first interface and the second interface communicate with the first heat exchange channel, and the third interface and the fourth interface communicate with the second heat exchange channel. The first interface and the fourth interface are located at the same end in the length direction of the plate heat exchanger and are arranged along the width direction of the plate heat exchanger. The second interface and the third interface are located at the same end in the length direction of the plate heat exchanger and are arranged along the width direction of the plate heat exchanger. At least a portion of the fixing member is disposed between the first interface and the second interface and between the third interface and the fourth interface.

[0020] In some embodiments of this utility model, the valve island is disposed at the second interface and the third interface, both of which are connected to the refrigerant flow channel. One end of the valve is disposed at the valve island, and the other end of the valve extends toward the fourth interface. The valve is located between the two ends of the plate heat exchanger in the length direction.

[0021] In some embodiments of this utility model, an installation gap is formed between the surface of the plate heat exchanger near the valve island and the valve and / or the valve island, and at least a portion of the fixing member is accommodated within the installation gap; or, an installation gap is formed between the surface of the plate heat exchanger near the valve island and the valve and / or the valve island, and the maximum width of the fixing member along the length direction of the plate heat exchanger is greater than the distance between the end of the valve near the fourth interface and the fourth interface.

[0022] In some embodiments of this utility model, the plate heat exchanger is arranged vertically or inclined, the first interface and the fourth interface are located above or obliquely above the second interface and the third interface, the angle between the length direction of the plate heat exchanger and the direction of gravity is ω2, 0°≤ω2≤30°; and / or, the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, 0°≤ω1≤30°.

[0023] In some embodiments of this utility model, the valve island has a first flow channel port, a second flow channel port, and a third flow channel port communicating with the refrigerant flow channel. The second flow channel port is connected to the second interface, and the third flow channel port is connected to the third interface. The outdoor unit of the air conditioner further includes: a first connecting pipe, one end of which is connected to the first interface; a second connecting pipe, one end of which is connected to the fourth interface; and a third connecting pipe, one end of which is connected to the first flow channel port. The ends of the first connecting pipe opposite to the first interface, the ends of the second connecting pipe opposite to the fourth interface, and the ends of the third connecting pipe opposite to the first flow channel port extend in the same direction.

[0024] In some embodiments of this utility model, the outdoor unit of the air conditioner further includes a compressor, and the end of the first connecting pipe facing away from the first interface, the end of the second connecting pipe facing away from the fourth interface, and the end of the third connecting pipe facing away from the first flow channel opening extend toward the side where the compressor is located.

[0025] In some embodiments of this utility model, at least one of the first connecting pipe and the second connecting pipe includes: a first segment, the first segment extending along the thickness direction of the plate heat exchanger, one end of the first segment communicating with the first interface or the fourth interface; and a second segment, one end of the second segment connected to the other end of the first segment, along the thickness direction of the plate heat exchanger, the second segment located on the side of the throttling device assembly away from the plate heat exchanger and spaced apart from the throttling device assembly.

[0026] In some embodiments of this utility model, the second segment extends along a straight line or a curve.

[0027] In some embodiments of this utility model, at least one of the first connecting pipe and the second connecting pipe further includes: a third segment, the third segment extending along the thickness direction of the plate heat exchanger, one end of the third segment being connected to the end of the second segment away from the first segment, and the other end extending toward the fixed bracket; and a fourth segment, the fourth segment extending along the length direction of the plate heat exchanger, one end of the fourth segment being connected to the end of the third segment away from the second segment.

[0028] In some embodiments of this utility model, the valve island has a first flow channel port, a second flow channel port, and a third flow channel port communicating with the refrigerant flow channel. The second flow channel port is connected to the second interface, and the third flow channel port is connected to the third interface. The valve island also has a branch valve cavity. The refrigerant flow channel includes a main flow path and a branch flow path. The two ends of the main flow path are respectively connected to the first flow channel port and the second flow channel port. The two ends of the branch flow path are respectively connected to the main flow path and the branch valve cavity. The branch valve cavity is connected to the third flow channel port. The valve component includes a branch valve component, which is configured to be connected and communicate with the branch valve cavity.

[0029] In some embodiments of this utility model, at least one of the main flow path and the branch flow path is formed as a capillary flow path.

[0030] In some embodiments of this utility model, the equivalent inner diameter of the capillary flow path is less than or equal to 5 mm; and / or, the length of the capillary flow path is greater than or equal to 5 mm.

[0031] In some embodiments of this utility model, the valve island has a first valve cavity and a second valve cavity, the refrigerant flow channel includes a first flow path, a second flow path and a third flow path, the two ends of the first flow path are respectively connected to the first flow channel opening and the first valve cavity, the two ends of the second flow path are respectively connected to the second flow channel opening and the first valve cavity, the main flow path includes the first flow path, the first valve cavity and the second flow path, the two ends of the third flow path are respectively connected to the first valve cavity and the second valve cavity, the second valve cavity is connected to the third flow channel opening, the branch flow path includes the third flow path, the branch valve cavity is the second valve cavity, and the valve component includes: a first valve component, the first valve component is configured to be connected and communicate with the first valve cavity; a second valve component, the second valve component is configured to be connected and communicate with the second valve cavity, and the branch valve component is the second valve component.

[0032] In some embodiments of this utility model, the angle between the axial direction of the first valve member and / or the movement direction of the valve core of the first valve member and / or the axial direction of the first valve cavity and the direction of gravity is ω11, 0°≤ω11≤30°; and / or, the angle between the axial direction of the second valve member and / or the movement direction of the valve core of the second valve member and / or the axial direction of the second valve cavity and the direction of gravity is ω11, 0°≤ω11≤30°; and / or, the angle between the axial direction of the branch valve member and / or the movement direction of the valve core of the branch valve member and / or the axial direction of the branch valve cavity and the direction of gravity is ω11, 0°≤ω11≤30°; and / or, the angle between the axis of the first valve member and the axis of the second valve member is a, 0°≤a≤60°; and / or, the angle between the axis of the first valve cavity and the axis of the second valve cavity is b, 0°≤b≤60°.

[0033] In some embodiments of this utility model, a fourth flow path for circulating heat exchange medium is further defined within the valve island. The two ends of the fourth flow path are respectively connected to the second valve cavity and the third flow channel opening. The first flow path includes a first straight portion that communicates with the first valve cavity and forms a straight segment. The second flow path includes a second straight portion that communicates with the second flow channel opening and forms a straight segment. The third flow path includes a third straight portion that communicates with the second valve cavity and forms a straight segment. The fourth flow path includes a fourth straight portion that communicates with the third flow channel opening and forms a straight segment. The second straight portion and the fourth straight portion are parallel. And / or, the angle between the extension direction of the first straight portion and the axial direction of the first valve component is c, where 60°≤c≤120°. And / or, the angle between the extension direction of the third straight portion and the axial direction of the second valve component is d, where 60°≤d≤120°.

[0034] In some embodiments of the present invention, the valve island includes a first mounting portion, the first mounting portion forming a first valve cavity, and at least a portion of the first valve member being installed in the first valve cavity; and / or, the valve island includes a second mounting portion, the second mounting portion forming a second valve cavity, and at least a portion of the second valve member being installed in the second valve cavity.

[0035] In some embodiments of this utility model, the angle between the axis of the first mounting part and the axis of the second mounting part is e, where 0°≤e≤60°.

[0036] In some embodiments of this utility model, the first valve is an electronic expansion valve or a solenoid valve, and the first valve includes a first coil portion, which is disposed above or diagonally above the first mounting portion; and / or, the second valve is an electronic expansion valve or a solenoid valve, and the second valve includes a second coil portion, which is disposed above or diagonally above the second mounting portion.

[0037] In some embodiments of this utility model, the first valve further includes a first support member, one end of which is connected to the first coil portion, and the other end of which is connected to the valve island via a first fastener, the first fastener facing the side of the valve island away from the plate heat exchanger; and / or, the second valve further includes a second support member, one end of which is connected to the second coil portion, and the other end of which is connected to the valve island via a second fastener, the second fastener facing the side of the valve island away from the plate heat exchanger.

[0038] In some embodiments of this utility model, the housing includes an outer shell, the outer shell includes a front shell and a side shell surrounding the compressor cavity, the first fastener faces the front shell or the side shell; and / or, the second fastener faces the front shell or the side shell.

[0039] In some embodiments of this utility model, the first mounting part has a first opening communicating with the first valve cavity on the side facing the first interface, and the first valve core is installed into the first valve cavity through the first opening; and / or, the second mounting part has a second opening communicating with the second valve cavity on the side facing the fourth interface, and the second valve core is installed into the second valve cavity through the second opening.

[0040] In some embodiments of this utility model, the first opening and the second opening face the same side, and the first interface and the fourth interface are located between the axis of the first opening and the axis of the second opening.

[0041] In some embodiments of this utility model, the angle between the axis of the first valve and the length direction of the plate heat exchanger is α1, and the angle between the axis of the second valve and the length direction of the plate heat exchanger is α2, where 0°≤α1<45° and / or 0°≤α2≤45°.

[0042] In some embodiments of this utility model, 0°≤α1≤30°; and / or, 5°≤α2≤30°; and / or, the absolute value of the difference between α1 and α2 is less than or equal to 30°.

[0043] In some embodiments of this utility model, the plate heat exchanger is arranged vertically or inclined, the first interface and the fourth interface are located above or obliquely above the second interface and the third interface, the plate heat exchanger includes a plurality of heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates, the first plate includes a planar portion, the valve island is disposed on the planar portion, the angle between the axis of the first valve and the plane where the planar portion is located is f, -30°≤f≤30°; and / or, the angle between the axis of the second valve and the plane where the planar portion is located is g, -30°≤g≤30°.

[0044] In some embodiments of this utility model, the line connecting the center of the first interface and the center of the second interface is the first connecting line, the line connecting the center of the third interface and the center of the fourth interface is the second connecting line, the angle between the axis of the first valve and the first connecting line is β1, the angle between the axis of the second valve and the second connecting line is β2, 0°≤β1<45° and / or 0°≤β2≤45°.

[0045] In some embodiments of this utility model, 0°≤β1≤30°; and / or, 0°≤β2≤30°; and / or, the absolute value of the difference between β1 and β2 is less than or equal to 30°.

[0046] In some embodiments of this utility model, the plate heat exchanger includes a plurality of heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates. The valve island is disposed on the first plate, and the second plate is provided with a mounting part. The mounting part is fixedly connected to the fixing component or is an integral structure.

[0047] In some embodiments of this utility model, the second plate includes a protrusion that protrudes from the heat exchange plate along the length or width direction of the plate heat exchanger. The protrusion is provided with the mounting part, and the mounting part is fixedly connected to the fixing component by fasteners.

[0048] In some embodiments of this utility model, the first plate is vertically or inclined, and the first and fourth interfaces of the plate heat exchanger are located above or obliquely above the second and third interfaces. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate is located is A1, 0°≤A1≤30°; or, the second plate is horizontally arranged, and the valve island is located above the second plate. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate is located is A2, 60°≤A2≤90°.

[0049] In some embodiments of this utility model, the plate heat exchanger includes a plurality of heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates. The valve island is disposed on the first plate, and the first plate is provided with a mounting part. The mounting part is fixedly connected to the fixing component or is an integral structure.

[0050] In some embodiments of this utility model, the first plate is vertically or inclined, and the first and fourth interfaces of the plate heat exchanger are located above or diagonally above the second and third interfaces. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate is located is B1, 0°≤B1≤30°; or, the second plate is horizontally arranged, and the valve island is located above the second plate. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate is located is B2, 60°≤B2≤90°.

[0051] In some embodiments of this utility model, the heat exchange device further includes valve island fasteners, which detachably mount the valve island to the plate heat exchanger.

[0052] In some embodiments of this utility model, the disassembly and assembly direction of the valve island fastener is consistent with the disassembly and assembly direction of the fixing component; and / or, the disassembly and assembly direction of the heat exchange device is consistent with the disassembly and assembly direction of the valve island.

[0053] The air conditioner according to an embodiment of the present invention includes the above-described outdoor air conditioner unit.

[0054] According to an embodiment of the present invention, an air conditioner is provided with an outdoor unit, and an installation space is formed through the casing. The heat exchange device includes a plate heat exchanger and a throttling device assembly. The throttling device assembly includes a valve island and valves. A refrigerant flow channel is formed in the valve island. The valve island is fixed to the plate heat exchanger and located on one side of the plate heat exchanger in the thickness direction. The refrigerant flow channel is connected to the heat exchange flow channel of the plate heat exchanger. The valves are located on the valve island and are connected to the refrigerant flow channel. The plate heat exchanger and the throttling device assembly are integrated, which can reduce the length of the connecting pipe and the welding points of the connecting pipe between the throttling device assembly and the plate heat exchanger, reduce the risk of welding leakage, and reduce the overall volume or space occupied by the heat exchange device. The heat exchanger is installed in the installation space, and the fixing assembly fixes the heat exchanger in the installation space. At least one of the sides of the plate heat exchanger away from the throttling device assembly and the side of the plate heat exchanger close to the throttling device assembly is supported by the fixing assembly, making the overall structure of the heat exchanger and the fixing assembly more compact and reasonable, reducing the volume of the heat exchanger and the fixing assembly, and facilitating the installation of the heat exchanger in the outdoor unit of the air conditioner and adjustment of the valve core orientation so that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, 0°≤ω1≤45°. Meanwhile, by ensuring that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, where 0°≤ω1≤45°, the force (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is more evenly distributed. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and lifespan of the valve, reducing noise, and thus improving the reliability of the air conditioner.

[0055] The heat pump equipment according to the present invention includes the above-described outdoor air conditioning unit.

[0056] According to an embodiment of the present invention, a heat pump device is provided with an outdoor air conditioning unit, which has an installation space formed by the casing. The heat exchange device includes a plate heat exchanger and a throttling device assembly. The throttling device assembly includes a valve island and valves. A refrigerant flow channel is formed in the valve island. The valve island is fixed to the plate heat exchanger and located on one side of the plate heat exchanger in the thickness direction. The refrigerant flow channel is connected to the heat exchange flow channel of the plate heat exchanger. The valves are located on the valve island and are connected to the refrigerant flow channel. The plate heat exchanger and the throttling device assembly are integrated, which can reduce the length of the connecting pipe and the welding points of the connecting pipe between the throttling device assembly and the plate heat exchanger, reduce the risk of weld leakage, and reduce the overall volume or space occupied by the heat exchange device. The heat exchanger is installed in the installation space, and the fixing assembly fixes the heat exchanger in the installation space. At least one of the sides of the plate heat exchanger away from the throttling device assembly and the side of the plate heat exchanger close to the throttling device assembly is supported by the fixing assembly, making the overall structure of the heat exchanger and the fixing assembly more compact and reasonable, reducing the volume of the heat exchanger and the fixing assembly, and facilitating the installation of the heat exchanger in the outdoor unit of the air conditioner and adjustment of the valve core orientation so that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, 0°≤ω1≤45°. Meanwhile, by ensuring that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, where 0°≤ω1≤45°, the force (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is more evenly distributed. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and lifespan of the valve, reducing noise, and thus improving the reliability of the heat pump equipment.

[0057] Additional aspects and advantages of this 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

[0058] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0059] Figure 1 This is a structural schematic diagram of the heat exchange device and fixing assembly according to an embodiment of the present utility model;

[0060] Figure 2 yes Figure 1 Enlarged view at point M;

[0061] Figure 3 yes Figure 1 A frontal view diagram;

[0062] Figure 4 yes Figure 3 Enlarged view at point N;

[0063] Figure 5 This is a structural schematic diagram of the heat exchange device and fixing assembly according to an embodiment of the present utility model from another perspective;

[0064] Figure 6 yes Figure 5 Enlarged view at point K;

[0065] Figure 7 This is a structural schematic diagram of the fastener according to an embodiment of the present utility model;

[0066] Figure 8 This is a top view of the fastener according to an embodiment of the present utility model;

[0067] Figure 9 This is a structural schematic diagram of the fixed bracket according to an embodiment of the present utility model;

[0068] Figure 10 yes Figure 9 Enlarged view at point H;

[0069] Figure 11 This is a schematic diagram of an air conditioner according to an embodiment of the present utility model;

[0070] Figure 12 This is a schematic diagram of the structure of a heat exchange device according to an embodiment of the present utility model;

[0071] Figure 13 This is a schematic diagram of the valve island structure according to an embodiment of the present utility model;

[0072] Figure 14 This is a side view of a throttle assembly according to an embodiment of the present utility model;

[0073] Figure 15 This is a schematic diagram of the structure of the throttle assembly according to an embodiment of the present utility model;

[0074] Figure 16 This is a schematic diagram of the structure of a throttle assembly according to an embodiment of the present utility model, wherein a first flow channel orifice is shown;

[0075] Figure 17 yes Figure 14 A cross-sectional view along the direction indicated by line AA;

[0076] Figure 18 yes Figure 15 A cross-sectional view along the direction indicated by line BB;

[0077] Figure 19 yes Figure 16 A cross-sectional view along the direction indicated by line CC;

[0078] Figure 20 This is a top view of a plate heat exchanger according to an embodiment of the present utility model;

[0079] Figure 21 yes Figure 20 A cross-sectional view along the direction indicated by line DD;

[0080] Figure 22 This is a top view of a heat exchange device according to an embodiment of the present utility model;

[0081] Figure 23 This is a structural schematic diagram of an outdoor air conditioner unit according to an embodiment of the present utility model, wherein the casing is not shown;

[0082] Figure 24 yes Figure 23 Enlarged view at point P;

[0083] Figure 25 This is an exploded view of the heat exchange device and fixing assembly according to an embodiment of the present utility model;

[0084] Figure 26 This is a schematic diagram of the structure of an outdoor air conditioner unit according to another embodiment of the present invention;

[0085] Figure 27 This is a front view schematic diagram of the partition plate, heat exchange device and fixing assembly according to another embodiment of the present utility model;

[0086] Figure 28 yes Figure 27 Enlarged view of point Q;

[0087] Figure 29 This is a side view of the partition plate, heat exchange device and fixing assembly according to another embodiment of the present invention;

[0088] Figure 30 This is a structural schematic diagram of an outdoor unit of an air conditioner according to another embodiment of the present utility model;

[0089] Figure 31 This is a structural schematic diagram of a gas-liquid separator, heat exchange device, and fixing assembly according to yet another embodiment of the present invention;

[0090] Figure 32 This is a side view schematic diagram of a gas-liquid separator, heat exchange device and fixing assembly according to another embodiment of the present utility model;

[0091] Figure 33 This is a structural schematic diagram of an air conditioner outdoor unit according to another embodiment of the present invention;

[0092] Figure 34 This is a structural schematic diagram of a gas-liquid separator, heat exchange device, and fixing assembly according to another embodiment of the present invention;

[0093] Figure 35 yes Figure 34 Enlarged view of section S in the middle;

[0094] Figure 36 This is a side view of a gas-liquid separator, heat exchange device, and fixing assembly according to another embodiment of the present invention.

[0095] Figure label:

[0096] 10000, outdoor unit of air conditioner;

[0097] 1000. Heat exchange device;

[0098] 100. Throttling assembly;

[0099] 10. Valve island; 101. First flow path; 1011. First straight section; 102. Second flow path; 1021. Second straight section; 103. Third flow path; 1031. Third straight section; 104. Fourth flow path; 1041. Fourth straight section; 105. Fifth flow path; 1001. First flow channel opening; 1002. Second flow channel opening; 1003. Third flow channel opening; 11. First mounting part; 111. First valve chamber; 112. First opening; 12. Second mounting part; 1 21. Second valve chamber; 122. Second opening; 13. First mounting base; 20. First valve component; 201. First coil section; 202. First valve core; 203. First support member; 204. First fastener; 21. First valve port; 22. First overflow port; 23. Second valve port; 30. Second valve component; 301. Second coil section; 302. Second valve core; 303. Second support member; 304. Second fastener; 31. Third valve port; 32. Second overflow port; 33. Fourth valve port;

[0100] 200, Plate heat exchanger; 210, Second mounting base; 220, First heat exchange channel; 2201, Second interface; 2202, First interface; 230, Second heat exchange channel; 2301, Third interface; 2302, Fourth interface; 240, First plate; 250, Second plate; 260, Flat surface; 270, First connecting wire; 280, Second connecting wire;

[0101] 300. First filter element;

[0102] 400. Second filter element;

[0103] 500. Fixing component; 51. Fixing bracket; 512. Second mounting hole; 513. Hanging groove; 52. Fixing element; 521. First cover; 522. Fixing part; 5221. Second cover; 5222. Connecting part; 5223. First mounting hole; 5224. Hook;

[0104] 600. First connecting pipe; 61. First section; 62. Second section; 63. Third section; 64. Fourth section;

[0105] 700, Second connecting pipe;

[0106] 800, Third connecting pipe;

[0107] 900. Valve island fasteners;

[0108] 2000, Air conditioner; 2100, Compressor; 2200, Four-way valve; 2300, Outdoor heat exchanger; 2400, Indoor heat exchange unit; 2410, Indoor heat exchanger; 2420, Indoor valve; 2430, Indoor filter.

[0109] 3000, casing; 41, outer shell; 411, installation space; 412, chassis; 42, middle partition;

[0110] 4000, Supporting components;

[0111] 5000, Gas-liquid separator. Detailed Implementation

[0112] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0113] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0114] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0115] The outdoor unit of an air conditioner according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0116] like Figure 23 , Figure 26 , Figure 30 and Figure 33 As shown, the outdoor unit 10000 of the air conditioner includes a casing 3000, a heat exchange device 1000, and a fixing component 500.

[0117] Among them, such as Figures 1-4 As shown, the heat exchange device 1000 includes a plate heat exchanger 200 and a throttling device assembly 100. The throttling device assembly 100 includes a valve island 10 and valves. A refrigerant flow channel is formed within the valve island 10, and the refrigerant flow channel communicates with the heat exchange flow channel of the plate heat exchanger 200. The valves are disposed on the valve island 10 and communicate with the refrigerant flow channel. Thus, by communicating the refrigerant flow channel of the throttling device assembly 100 with the heat exchange flow channel of the plate heat exchanger 200, the throttling device assembly 100 is connected to the compressor 2100 so that the heat exchange medium can be delivered from the compressor 2100 to the refrigerant flow channel of the throttling device assembly 100 or from the refrigerant flow channel of the throttling device assembly 100 to the compressor 2100.

[0118] refer to Figures 1-4 and Figures 24-30 As shown, the housing 3000 has an installation space 411, and the valve is mounted on the valve island 10. The valve island 10 is fixed to the plate heat exchanger 200 and is located in the thickness direction of the plate heat exchanger 200 (e.g., ...). Figure 1 On one side of the first direction shown, the heat exchange device 1000 is installed in the installation space 411, and the fixing assembly 500 fixes the heat exchange device 1000 in the installation space 411. At least one of the sides of the plate heat exchanger 200 away from the throttle assembly 100 and the side of the plate heat exchanger 200 close to the throttle assembly 100 is supported by the fixing assembly 500.

[0119] Therefore, by placing the valve island 10 on the plate heat exchanger 200, the plate heat exchanger 200 and the throttling device assembly 100 are integrated, thereby improving the structural compactness between the plate heat exchanger 200 and the throttling device assembly 100. At the same time, by placing the valve island 10 and the fixing assembly 500 on both sides of the plate heat exchanger 200 in the thickness direction, the throttling device assembly 100 is installed on one side of the plate heat exchanger 200, and the other side is supported and fixed by the fixing assembly 500. This avoids mutual interference between the fixing assembly 500 and the throttling device assembly 100, making the overall structure of the heat exchange device 1000 composed of the plate heat exchanger 200 and the throttling device assembly 100 more compact and reasonable, effectively optimizing the spatial layout of the air conditioner outdoor unit 10000, and reducing the volume of the air conditioner outdoor unit 10000.

[0120] Furthermore, compared to the prior art where the throttle assembly and plate heat exchanger are connected by connecting pipes, this application uses a valve island 10 fixed to the plate heat exchanger 200, so that the refrigerant flow channel of the valve island 10 can be directly connected to the heat exchange flow channel of the plate heat exchanger 200. This reduces the length of the connecting pipe between the throttle assembly 100 and the plate heat exchanger 200 and the number of welds on the connecting pipe, reduces the risk of weld leakage, and reduces the overall volume or space occupied by the heat exchange device 1000.

[0121] At least one of the sides of the plate heat exchanger 200 facing away from the throttle assembly 100 and the side of the plate heat exchanger 200 closest to the throttle assembly 100 is supported by the fixing assembly 500, making it easy for the heat exchange device 1000 to be installed in the installation space 411 via the fixing assembly 500 and facilitating the adjustment of the valve orientation, thereby ensuring that the axial direction of the valve and / or the movement direction of the valve core is perpendicular to the direction of gravity (e.g., ...). Figure 23 The angle between the vertical and horizontal directions shown is ω1, and satisfies 0°≤ω1≤45°.

[0122] This application relates the axial direction of the valve and / or the movement direction of the valve core to the direction of gravity (e.g., ...). Figure 23 The included angle (in the up and down directions shown) is ω1, and satisfies 0°≤ω1≤45°. While the valve core can realize at least one of the following: opening, closing, flow regulation, and throttling opening regulation of the refrigerant flow path, the force (support force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is more evenly distributed. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more even, avoiding excessive local wear of the valve core, improving the operational reliability and life of the valve components, reducing noise, and thus improving the reliability of the heat exchange device 1000.

[0123] For example, in one specific embodiment, such as Figure 3 The third direction shown is the length direction of the plate heat exchanger 200 and Figure 23The up and down directions shown are the same.

[0124] It should be noted that ω1 can be 0°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, or 45°. Preferably, ω1 is 0°-30°, and more preferably, ω1 is 0°-15°.

[0125] It should be noted that valves are used to control the flow rate and pressure of the heat exchange medium flowing through them, in order to achieve precise regulation of the heat exchange medium flow. For example, valves can throttle and reduce the pressure of the heat exchange medium flowing through them, thereby lowering the temperature and humidity of the heat exchange medium. Specifically, the valve is an electronic expansion valve, which includes a valve body and a valve core. The valve body forms a throttling channel communicating with the valve cavity, and at least a portion of the valve core is movably disposed within the throttling channel. Of course, the valve can also be a thermostatic expansion valve or other types of throttling devices.

[0126] Valve island 10 is fixed to plate heat exchanger 200 and located on one side of plate heat exchanger 200 in the thickness direction. The refrigerant flow channel is connected to the heat exchange flow channel of plate heat exchanger 200. Valve components are installed on valve island 10 and connected to refrigerant flow channel. Heat exchange device 1000 is installed in installation space 411. Fixing component 500 fixes heat exchange device 1000 in installation space 411. The side of plate heat exchanger 200 away from throttling device assembly 100 is supported by fixing component 500, so that plate heat exchanger 200 and throttling device assembly 100 are integrated, and mutual interference between fixing component 500 and throttling device assembly 100 is avoided. This makes the overall structure of plate heat exchanger 200 and throttling device assembly 100 more compact and reasonable, effectively optimizing the spatial layout of air conditioner outdoor unit 10000 and reducing the volume of air conditioner outdoor unit 10000. Meanwhile, by making the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity ω1, where 0°≤ω1≤45°, the wear of the valve core can be reduced during operation, thereby improving the operational reliability and lifespan of the valve and reducing noise, thus improving the reliability of the outdoor unit 10000 of the air conditioner.

[0127] The axial direction of a valve component can be understood as: the axial direction of the valve core and the axial direction of the valve cavity in which the valve component is mounted. The direction of movement of the valve core can be understood as: the linear direction of movement excluding the rotation of the valve core.

[0128] According to an embodiment of the present invention, the outdoor unit 10000 of the air conditioner has an installation space 411 formed by the casing 3000. The heat exchange device 1000 includes a plate heat exchanger 200 and a throttling device assembly 100. The throttling device assembly 100 includes a valve island 10 and valves. A refrigerant flow channel is formed in the valve island 10. The plate heat exchanger 200 and the throttling device assembly 100 are integrated, which can reduce the length of the connecting pipe between the throttling device assembly 100 and the plate heat exchanger 200 and the welding points of the connecting pipe, reduce the risk of welding leakage, and reduce the overall volume or space occupied by the heat exchange device 1000. The heat exchange device 1000 is installed in the installation space, and the fixing assembly 500 fixes the heat exchange device 1000 in the installation space. At least one of the sides of the plate heat exchanger 200 away from the throttling device assembly 100 and the side of the plate heat exchanger 200 close to the throttling device assembly 100 is supported by the fixing assembly 500, making the overall structure of the heat exchange device 1000 and the fixing assembly 500 more compact and reasonable, reducing the volume of the heat exchange device 1000 and the fixing assembly 500, and facilitating the installation of the heat exchange device 1000 in the outdoor unit 10000 of the air conditioner and adjustment of the orientation of the valve core, so that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, 0°≤ω1≤45°. Meanwhile, by ensuring that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, where 0°≤ω1≤45°, the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is relatively uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is relatively uniform, avoiding excessive local wear of the valve core, improving the operational reliability and lifespan of the valve, reducing noise, and thus improving the reliability of the heat exchange device 1000 and the outdoor unit 10000 of the air conditioner.

[0129] In some embodiments of this utility model, such as Figures 23-26 As shown, the housing 3000 includes an outer shell 41, within which an installation space 411 is formed. The fixing component 500 includes or is fixed to the outer shell 41. Therefore, by including the outer shell 41 in the fixing component 500, additional fixing parts can be saved, connection points reduced, costs lowered, and the spatial layout further optimized, making the interior of the air conditioner outdoor unit 10000 more compact. Alternatively, by fixing the fixing component 500 to the outer shell 41, it is easier to assemble and disassemble the fixing component 500, thereby facilitating the maintenance of the heat exchange device 1000. This improves the versatility of the air conditioner outdoor unit 10000, adapting it to different application scenarios.

[0130] In some embodiments of this utility model, such as Figures 26-29As shown, the housing includes an outer shell 41 and a partition plate disposed within the outer shell 41. An installation space 411 is formed within the outer shell 41. The partition plate 42 divides the installation space 411 into a fan chamber and a compressor chamber. The heat exchange device 1000 is installed in the compressor chamber. The fixing assembly 500 includes the partition plate 42 or is fixed to the partition plate 42.

[0131] Therefore, the heat exchange device 1000 can be installed directly using the partition plate 42 that divides the installation space 411 into the fan cavity and the compressor cavity, thereby efficiently planning the compressor cavity layout, making the various components compact and orderly, improving space utilization, simplifying the overall structure, reducing connection points, and reducing the risk of failure.

[0132] Specifically, by including the partition plate 42 in the fixing component 500, additional fixing parts can be saved, connection points can be reduced, costs can be lowered, and the space layout can be further optimized, making the interior of the air conditioner outdoor unit 10000 more compact; or, by fixing the fixing component 500 to the partition plate 42, it is easy to install and remove the fixing component 500, thereby facilitating the maintenance of the heat exchange device 1000. This improves the versatility of the air conditioner outdoor unit 10000, making it suitable for different application scenarios.

[0133] Furthermore, such as Figures 23-29 As shown, the two ends of the fixing component 500 are fixedly connected to the outer casing 41 and the middle partition 42, respectively. This arrangement allows the fixing component 500, the outer casing 41, and the middle partition 42 to form a stable mechanical frame, improving the overall structural stability and reliability. Furthermore, the force generated by the heat exchanger 1000 during operation can be distributed across the outer casing 41 and the middle partition 42, avoiding localized stress concentration, adapting to stress changes under different operating conditions, and improving the durability of the outdoor air conditioning unit 10000.

[0134] In some embodiments of this utility model, such as Figures 30-36 As shown, the outer casing 41 includes a chassis 412, and the outdoor unit 10000 of the air conditioner also includes a support component 4000. The support component 4000 is fixed on the chassis 412, and the fixing component 500 is fixedly connected to the casing 3000 through the support component 4000.

[0135] Therefore, by using the support component 4000 to indirectly connect the fixing component 500 and the housing 3000, the installation position and angle of the fixing component 500 are more flexible. The fixing component 500 can be adjusted according to the actual needs of the heat exchange device 1000, optimizing the internal layout of the outdoor unit 10000, improving space utilization, and facilitating subsequent maintenance and component replacement.

[0136] Meanwhile, the chassis 412, as part of the outer shell 41, is fixed to the chassis 412 by the support component 4000. The stability of the chassis 412 can provide reliable support for the support component 4000, the fixing component 500 and the heat exchange device 1000, enhance the overall structural stability, effectively resist the vibration and external impact of the outdoor unit 10000 during operation, and reduce the risk of component damage.

[0137] In some embodiments of this utility model, such as Figures 30-36 As shown, the outdoor unit 10000 of the air conditioner also includes a bracket, a gas-liquid separator 5000, at least one of a liquid receiver, a high-pressure tank, and an expansion tank, a compressor, and an outdoor fan. The compressor is installed in the compressor cavity, the outdoor fan is installed in the fan cavity, and the support assembly 4000 is installed in the compressor cavity. The support assembly 4000 includes at least one of a bracket, a gas-liquid separator 5000, a liquid receiver, a high-pressure tank, and an expansion tank.

[0138] Understandably, when the support component 4000 includes a bracket, the bracket itself has a supporting function, which can provide a reliable force point for the fixing component 500, enhance the rigidity of the entire connection structure, effectively disperse the vibration and stress generated during the operation of the outdoor unit of the air conditioner, and reduce the possibility of damage to the casing and internal components due to vibration.

[0139] Meanwhile, since the gas-liquid separator 5000, liquid storage tank, high-pressure tank, and expansion tank typically have a certain weight and volume, incorporating them into the support assembly 4000 utilizes their own weight to increase system stability, making the connection between the fixing assembly 500 and the casing 3000 more secure and reducing shaking and displacement. Furthermore, the structure of the gas-liquid separator 500 and the liquid storage tank can be used to secure the fixing assembly 500 and the heat exchange device 1000, further optimizing the internal layout of the outdoor unit 10000 and improving space utilization.

[0140] In some embodiments of this utility model, such as Figure 12 and Figure 35 As shown, the plate heat exchanger 200 includes multiple heat exchange plates stacked together and a first plate 240 and a second plate 250 disposed on both sides of the heat exchange plates. The valve island 10 is disposed on the first plate 240, and the second plate 250 is provided with a mounting part. The mounting part is fixedly connected to the fixing component 500 or is an integral part.

[0141] Understandably, the plate heat exchanger 200 is connected to the fixed assembly 500 via the mounting part on the second plate 250, thereby connecting the plate heat exchanger 200 to the fixed assembly 500. This, in turn, allows the heat exchange device 1000 to be fixed to the casing 3000 via the fixed assembly 500, improving overall compactness. Simultaneously, the fixed connection between the mounting part and the fixed assembly 500 facilitates the assembly and disassembly of the fixed assembly 500 and the heat exchange device 1000, thus simplifying maintenance of the heat exchange device 1000. Furthermore, the mounting part and valve island are positioned on opposite sides of the heat exchange plate, reducing interference between them and facilitating assembly.

[0142] In some embodiments of this utility model, such as Figure 35 As shown, the second plate 250 includes a protrusion that protrudes from the heat exchange plate along the length or width direction of the plate heat exchanger 200. The protrusion is provided with a mounting part, which is fixedly connected to the fixing assembly 500 by fasteners.

[0143] It is understandable that since the protrusion protrudes from the heat exchange plate along the length or width of the plate heat exchanger 200, a mounting part can be provided on the protrusion, which reduces the impact of the mounting part on the heat exchange plate, improves the reliability of the plate heat exchanger 200, and facilitates installation and disassembly by installers, thereby improving assembly efficiency.

[0144] In some embodiments of this utility model, such as Figures 26-32 As shown, the second plate 250 is installed vertically or at an angle (which can be understood as the second plate 250 extending along the height direction of the outdoor unit 10000, that is...). Figure 26 (Extending vertically as shown in the figure), the first port 2202 and the fourth port 2302 of the plate heat exchanger 200 are located above or diagonally above the second port 2201 and the third port 2301. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate 240 is located is A1, 0°≤A1≤30°.

[0145] It is understandable that when the second plate 250 is set vertically or at an angle, the first interface 2202 and the fourth interface 2302 are located above or diagonally above the second interface 2201 and the third interface 2301, so that the first interface 2202 and the fourth interface 2302 are arranged in the vertical direction, and the second interface 2201 and the third interface 2301 are arranged in the vertical direction, the spatial layout of the plate heat exchanger 200 is further optimized, and the flow of refrigerant in the heat exchange path is facilitated.

[0146] Meanwhile, by making an angle A1 between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate 240 is located, where 0°≤A1≤30°, the valve core can achieve at least one of opening, closing, flow regulation, and throttling opening regulation of the refrigerant flow path. At the same time, it makes the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core more uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and life of the valve, reducing noise, and thus improving the reliability of the heat exchange device 1000.

[0147] It should be noted that A1 can be 0°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, or 45°. Preferably, A1 is 0°-30°, and more preferably, A1 is 0°-15°.

[0148] In some embodiments of this utility model, such as Figures 33-36 As shown, the second plate 250 is horizontally positioned, and the valve island 10 is located above the second plate 250. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate 250 is located is A2, where 60°≤A2≤90°. Therefore, based on the space within the outdoor unit 10000, the plate heat exchanger 200 can be horizontally positioned to ensure the second plate 250 is also horizontally positioned. Furthermore, by positioning the valve island 10 above the plate heat exchanger 200, the refrigerant can flow smoothly between the refrigerant channel of the valve island 10 and the heat exchange channel of the plate heat exchanger 200, further optimizing the spatial layout of the plate heat exchanger 200.

[0149] Meanwhile, by making an angle A2 between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate 250 is located, where 60°≤A2≤90°, the valve core can achieve at least one of the following: opening, closing, flow regulation, and throttling opening regulation of the refrigerant flow path. At the same time, it makes the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core more uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and life of the valve, reducing noise, and thus improving the reliability of the heat exchange device 1000.

[0150] In some embodiments of this utility model, the plate heat exchanger 200 includes a plurality of heat exchange plates stacked together and a first plate 240 and a second plate 250 disposed on both sides of the heat exchange plates. The valve island 10 is disposed on the first plate 240. The first plate 240 is provided with a mounting part, which is fixedly connected to the fixing component 500 or is an integral structure.

[0151] Therefore, the plate heat exchanger 200 is fixedly connected to the fixing component 500 via the mounting part provided on the second plate 250, thereby connecting the plate heat exchanger 200 to the fixing component 500. This allows the heat exchange device 1000 to be fixed to the casing 3000 via the fixing component 500, improving overall compactness. Simultaneously, the fixed connection between the mounting part and the fixing component 500 facilitates the assembly and disassembly of the fixing component 500 and the heat exchange device 1000, thus simplifying maintenance of the heat exchange device 1000. Furthermore, the fact that the mounting part and the valve island 10 are located on the same side of the heat exchange plate further enhances compactness and achieves miniaturization.

[0152] In some embodiments of this utility model, the first plate 240 is arranged vertically or inclined, and the first interface 2202 and the fourth interface 2302 of the plate heat exchanger 200 are located above or obliquely above the second interface 2201 and the third interface 2301. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate 240 is located is B1, where 0°≤B1≤30°.

[0153] It is understandable that when the first plate 240 is set vertically or at an angle, the first interface 2202 and the fourth interface 2302 are located above or diagonally above the second interface 2201 and the third interface 2301, so that the first interface 2202 and the fourth interface 2302 are arranged in the vertical direction, and the second interface 2201 and the third interface 2301 are arranged in the vertical direction, the spatial layout of the plate heat exchanger 200 is further optimized, and the flow of refrigerant in the heat exchange path is facilitated.

[0154] Meanwhile, by making an angle B1 between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate 240 is located, where 0°≤B1≤30°, the valve core can achieve at least one of opening, closing, flow regulation, and throttling opening regulation of the refrigerant flow path. At the same time, it makes the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core more uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and life of the valve, reducing noise, and thus improving the reliability of the heat exchange device 1000.

[0155] It should be noted that B1 can be 0°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, or 45°. Preferably, B1 is 0°-30°, and more preferably, B1 is 0°-15°.

[0156] In some embodiments of this utility model, the second plate 250 is horizontally arranged, the valve island 10 is located above the second plate 250, and the angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate is located is B2, 60°≤B2≤90°.

[0157] Therefore, based on the space inside the outdoor unit 10000 of the air conditioner, the plate heat exchanger 200 can be set horizontally so that the second plate 250 can be set horizontally, and the valve island 10 can be located above the plate heat exchanger 200 so that the valve island 10 is located above the second plate 250, ensuring that the refrigerant flows smoothly between the refrigerant flow channel of the valve island 10 and the heat exchange flow channel of the plate heat exchanger 200, further optimizing the spatial layout of the plate heat exchanger 200.

[0158] Meanwhile, by making an angle B2 between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate 250 is located, where 60°≤B2≤90°, the valve core can achieve at least one of the following: opening, closing, flow regulation, and throttling opening regulation of the refrigerant flow path. At the same time, it makes the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core more uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and life of the valve, reducing noise, and thus improving the reliability of the heat exchange device 1000.

[0159] In some embodiments of this utility model, Figure 24 , Figure 31 and Figure 22 As shown, the heat exchange device 1000 also includes a valve island fastener 900, which detachably mounts the valve island 10 onto the plate heat exchanger 200. Thus, the valve island 10 and the plate heat exchanger 200 are detachably connected by the valve island fastener 900, thereby achieving the integration of the heat exchange device 1000.

[0160] In some embodiments of this utility model, Figure 24 , Figure 31 and Figure 22 As shown, the disassembly and assembly directions of the valve island fastener 900 are consistent with those of the fixing component 500. This arrangement ensures that the disassembly and assembly directions of the valve island fastener 900 are consistent with those of the heat exchanger 1000 and the fixing component 500, thereby facilitating the overall disassembly, assembly, and maintenance of the heat exchanger 1000 and the fixing component 500, and improving disassembly and assembly efficiency.

[0161] In some embodiments of this utility model, Figure 24 , Figure 31 and Figure 22 As shown, the disassembly and assembly direction of the heat exchanger 1000 is consistent with that of the valve island 10. Therefore, this arrangement ensures that the disassembly and assembly directions of the throttle assembly 100 and the plate heat exchanger 200 are consistent with those of the heat exchanger 1000 and the fixed assembly 500, thereby facilitating the overall disassembly, assembly, and maintenance of the heat exchanger 1000 and the fixed assembly 500, and improving disassembly and assembly efficiency.

[0162] In some embodiments, such as Figures 23-25 As shown, the fixing bracket 51 of the fixing assembly 500 is fixedly connected to the housing 3000. The fixing bracket 51 is located on the side of the plate heat exchanger 200 away from the throttling device assembly 100. The fixing member 52 is connected to the fixing bracket 51 and defines a fixing space. The plate heat exchanger 200 passes through the fixing space, thereby fixing the heat exchange device 1000 in the installation space 411. The side of the plate heat exchanger 200 away from the throttling device assembly 100 is supported by the fixing assembly 500. The fixing bracket 51 can be at least one of the following: housing 41, bracket fixed to housing 41, partition 42, bracket fixed to partition 42, gas-liquid separator 5000, bracket fixed to gas-liquid separator 5000, liquid storage tank, bracket fixed to liquid storage tank, high-pressure tank, bracket fixed to high-pressure tank, and expansion tank.

[0163] In some embodiments, such as Figures 26-29 As shown, the housing 3000 includes a partition plate 42, and the fixing assembly 500 includes the partition plate 42 and a fixing member 52. The fixing member 51 is connected to the partition plate 42 and defines a fixing space. The plate heat exchanger 200 passes through the fixing space, thereby fixing the heat exchange device 1000 in the installation space 411 by the fixing assembly 500. The side of the plate heat exchanger 200 away from the throttle assembly 100 is supported by the fixing assembly 500.

[0164] In some embodiments, such as Figures 30-32 As shown, the outer casing 41 includes a chassis 412, and the outdoor unit 10000 of the air conditioner also includes a gas-liquid separator 5000. The gas-liquid separator 5000 is fixed on the chassis 412. The fixing bracket 51 of the fixing assembly 500 is fixedly connected to the gas-liquid separator 5000. The fixing bracket 51 is located on the side of the plate heat exchanger 200 away from the throttle assembly 100. The fixing member 52 is connected to the fixing bracket 51 and defines a fixing space. The plate heat exchanger 200 passes through the fixing space, thereby realizing that the fixing assembly 500 fixes the heat exchange device 1000 on the gas-liquid separator 5000, so as to realize that the fixing assembly 500 fixes the heat exchange device 1000 in the installation space 411.

[0165] In some embodiments, such as Figures 33-36As shown, the outer casing 41 includes a chassis 412, and the outdoor unit 10000 of the air conditioner also includes a gas-liquid separator 5000. The gas-liquid separator 5000 is fixed on the chassis 412. The fixing component 500 is fixedly connected to the upper end of the gas-liquid separator 5000. The plate heat exchanger 200 includes multiple heat exchange plates stacked together and a first plate 240 and a second plate 250 disposed on both sides of the heat exchange plates. The valve island 10 is disposed on the first plate 240, and the second plate 250 is provided with a mounting part. The mounting part is fixedly connected to the fixing component 500, thereby realizing that the fixing component 500 fixes the heat exchange device 1000 on the gas-liquid separator 5000, so as to realize that the fixing component 500 fixes the heat exchange device 1000 in the installation space 411.

[0166] Furthermore, the fixing component 500 and the mounting part are fixedly connected by fasteners.

[0167] In some embodiments of this utility model, such as Figures 1-5 As shown, the fixing assembly 500 includes a fixing bracket 51 and a fixing member 52. The fixing bracket 51 is located on the side of the plate heat exchanger 200 away from the throttling device assembly 100. The fixing member 52 is connected to the fixing bracket 51 and defines a fixing space. The plate heat exchanger 200 passes through the fixing space. The side of the plate heat exchanger 200 away from the throttling device assembly 100 abuts against the fixing bracket 51 to be supported by the fixing bracket 51 and / or the side of the plate heat exchanger 200 near the throttling device assembly 100 abuts against the fixing member 52 to be supported by the fixing member 52.

[0168] Therefore, when the plate heat exchanger 200 is installed in the fixed space, it is firmly positioned in the fixed space by the fastener 52, so that the heat exchange device 1000 always maintains a stable installation state during operation. Moreover, the installation of the heat exchange device 1000 is simple and effectively improves the assembly efficiency.

[0169] Meanwhile, the fixed bracket 51 is located on the side of the plate heat exchanger 200 away from the throttling device assembly 100, so that the throttling device assembly 100 is installed on one side of the plate heat exchanger 200, and the other side is supported and fixed by the fixed bracket 51. This avoids mutual interference between the fixed bracket 51 and the throttling device assembly 100, making the overall structure of the heat exchange device 1000 more compact and reasonable, and reducing the space occupied by the heat exchange device 1000 in the outdoor unit 10000 of the air conditioner.

[0170] Furthermore, by having the plate heat exchanger 200 abut against the fixed bracket 51 on the side facing away from the throttle assembly 100 to be supported by the fixed bracket 51 and / or having the plate heat exchanger 200 abut against the fixing member 52 on the side near the throttle assembly 100 to be supported by the fixing member 52, the heat exchange device 1000 can be easily installed in the installation space 411 by the fixing assembly 500 and the orientation of the valve can be easily adjusted, thereby making the axial direction of the valve and / or the movement direction of the valve core different from the direction of gravity (e.g., ...). Figure 23 The angle between the vertical and horizontal directions shown is ω1, and satisfies 0°≤ω1≤45°.

[0171] In one specific embodiment, the fixed bracket 51 can be formed by sheet metal parts on the outdoor unit casing of the air conditioner, thereby making full use of the outdoor unit casing structure to support and fix the plate heat exchanger 200. It has the advantages of high structural utilization and reduced additional parts. Moreover, the heat exchange device 1000 can be easily fixed and installed on external structures such as the outdoor unit 10000 of the air conditioner, which greatly improves the convenience of installation.

[0172] In some embodiments of this utility model, such as Figures 2-4 , Figure 7 and Figure 8 As shown, the fixing member 52 includes a first cover portion 521 and a fixing portion 522. The first cover portion 521 is located on the side of the plate heat exchanger 200 opposite to the fixing bracket 51, and the first cover portion 521 extends along the width direction of the plate heat exchanger 200 (e.g., ...). Figure 3 Extending in the second direction shown, the fixing part 522 includes two parts and is respectively connected to both ends of the first covering part 521 in the length direction. The fixing part 522 is connected to the fixing bracket 51, and the first covering part 521, the two fixing parts 522 and the fixing bracket 51 form a fixing space.

[0173] Thus, the first covering part 521 covers the plate heat exchanger 200 from the side away from the fixed support 51, and the two fixing parts 522 transfer the load to the fixed support 51, thereby limiting the plate heat exchanger 200. The first covering part 521, the two fixing parts 522 and the fixed support 51 together form a fixed space, so that the plate heat exchanger 200 passes through the fixed space, further improving the installation stability and displacement resistance of the heat exchange device 1000 under operating vibration conditions.

[0174] In some embodiments of this utility model, the distance between the first covering portion 521 and the plate heat exchanger 200 along the thickness direction of the plate heat exchanger 200 is T, and satisfies 0≤T≤2mm; or, the two ends of the length direction of the first covering portion 521 extend beyond the two ends of the width direction of the plate heat exchanger 200 respectively.

[0175] It is understandable that when the distance between the first cover portion 521 and the plate heat exchanger 200 is 0 along the thickness direction of the plate heat exchanger 200, the first cover portion 521 is in contact with the plate heat exchanger 200, thereby improving the frictional limiting and anti-shaking ability of the fixing member 52 on the plate heat exchanger 200. At this time, the two ends of the length direction of the first cover portion 521 extend beyond the two ends of the width direction of the plate heat exchanger 200, so that there are gaps between the two fixing parts 522 connected to the two ends of the length direction of the first cover portion 521 and the plate heat exchanger 200, thereby reducing the noise generated by the contact between the plate heat exchanger 200 and the fixing part 522 under the vibration condition of operation.

[0176] Meanwhile, when the distance between the first cover 521 and the plate heat exchanger 200 along the thickness direction of the plate heat exchanger 200 is 0 < T ≤ 2 mm, a gap is created between the first cover 521 and the plate heat exchanger 200, thereby reducing the noise generated by the contact between the plate heat exchanger 200 and the fixing part 522 under operating vibration conditions. At this time, the length dimension of the first cover 521 is the same as the width dimension of the plate heat exchanger 200, so that the two fixing parts 522 connected to both ends of the length direction of the first cover 521 respectively fit into the plate heat exchanger 200, thereby improving the friction limiting and anti-shaking ability of the fixing part 52 on the plate heat exchanger 200.

[0177] In some embodiments of this utility model, such as Figures 2-4 , Figure 7 and Figure 8 As shown, the fixing part 522 includes a second cover part 5221 and a connecting part 5222. The second cover part 5221 extends along the thickness direction of the plate heat exchanger 200 and one end is connected to the first cover part 521. One end of the connecting part 5222 is connected to the end of the second cover part 5221 away from the first cover part 521. The other ends of the two connecting parts 5222 extend in a direction away from each other. The connecting part 5222 is connected to the fixing bracket 51.

[0178] Thus, the first covering part 521 provides coverage to the plate heat exchanger 200 on the side away from the fixed support 51, and the two second covering parts 5221 provide lateral enclosure on both sides of the plate heat exchanger 200 in the width direction, and the two connecting parts 5222 symmetrically transfer the load to the fixed support 51, forming a mechanical closed-loop structure. This achieves simultaneous limiting in the thickness and width directions of the plate heat exchanger 200, effectively suppressing the shaking and relative displacement of the heat exchange device 1000 during operation, and improving the reliability of the heat exchange device 1000 and the outdoor unit 10000 of the air conditioner.

[0179] In some embodiments of this utility model, such as Figure 2 and Figures 5-10As shown, the two ends of the fixing member 52 along the width direction of the plate heat exchanger 200 are connected to the fixing bracket 51 by fasteners. This arrangement achieves a secure connection between the fixing member 52 and the fixing bracket 51, thereby ensuring the reliability of the fixed space defined by the fixing member 52 and the fixing bracket 51, and thus guaranteeing the stability of the heat exchange device 1000 during operation.

[0180] Furthermore, both connecting parts 5222 have a first mounting hole 5223, and the fixing bracket 51 has a second mounting hole 512 opposite to the first mounting hole 5223. Fasteners are inserted into the corresponding first mounting hole 5223 and second mounting hole 512 to achieve a tight connection between the fixing member 52 and the fixing bracket 51.

[0181] In some embodiments of this utility model, such as Figure 2 and Figures 5-10 As shown, the fastener 52 has hooks 5224 at both ends along the width direction of the plate heat exchanger 200, and the fixing bracket 51 has a hanging groove 513 that mates with the hooks 5224. Thus, during the assembly of the fixing assembly, by aligning the hooks 5224 of the fastener 52 with the hanging groove 513 of the fixing bracket 51 and inserting them, and making the hooks 5224 and the hanging groove 513 self-locking, the fastener 52 and the fixing bracket 51 are initially positioned and fixed, and the groove wall of the hanging groove 513 provides surface support for the hooks 5224, which can limit the relative displacement of the plate heat exchanger 200 in the width direction and the thickness direction.

[0182] Meanwhile, the hook 5224 and the hanging groove 513 do not require additional fasteners, resulting in a short assembly cycle and fewer steps. After the fixing part 52 and the fixed bracket 51 are initially positioned and fixed, the fixing part 52 is connected to the fixed bracket 51 at both ends along the width direction of the plate heat exchanger 200 by fasteners, thus achieving a tight connection between the fixing part 52 and the fixed bracket 51.

[0183] Furthermore, the two connecting parts 5222 have hooks 5224 at their opposite ends, the hooks 5224 extending along the thickness direction of the plate heat exchanger 200 toward the direction away from the throttle assembly 100, so that the two hooks 5224 can be inserted into the corresponding hanging slots 513.

[0184] In some embodiments of this utility model, the fixed bracket 51 includes a first positioning structure. The plate heat exchanger 200 is positioned and mounted on the side facing away from the valve island 10 on the first positioning structure, which includes a positioning groove. This arrangement connects the plate heat exchanger 200 and the fixed bracket 51. Furthermore, the positioning groove in the first positioning structure allows the side of the plate heat exchanger 200 facing away from the valve island 10 to engage with the positioning groove, achieving pre-positioning and reducing assembly difficulty.

[0185] In some embodiments of this utility model, the fixed bracket 51 includes a support plate, which is supported below the plate heat exchanger 200. Thus, by supporting the plate heat exchanger 200 below, the support plate further supports the plate heat exchanger 200 after it is installed within the fixed space, ensuring the stability of the plate heat exchanger 200 and improving the reliability of the heat exchange device 1000.

[0186] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the fastener 52 is a single piece. This design improves the overall rigidity and fatigue resistance of the fastener 52, enabling it to maintain a stable clamping force on the plate heat exchanger 200 under vibration and other conditions, thus enhancing overall reliability. Simultaneously, the integrated design reduces the number of parts and process costs, facilitating collaborative design with the mold and process of the mounting bracket 51, further improving the compactness and manufacturability of the heat exchange device 1000 and the outdoor air conditioning unit 10000.

[0187] Specifically, the fastener 52 is integrally formed from a metal sheet by stamping and bending, so that the first cover 521, the two second cover parts 5221 and the two connecting parts 5222 are made as a whole without secondary assembly.

[0188] In some embodiments of this utility model, the plate heat exchanger 200 includes a plurality of stacked heat exchange plates and a first plate 240 and a second plate 250 disposed on both sides of the heat exchange plates. The first plate 240 includes a flat portion 260, on which the valve island 10 is disposed. The fixing member 52 is fixedly connected to the second plate 250. Thus, the plate heat exchanger 200 and the fixing assembly 300 are connected by the fixing member 52 and the second plate 250, thereby fixing the plate heat exchanger 200. Furthermore, by placing the first plate 240 and the second plate 250 on opposite sides of the heat exchange plates, the valve island 10 and the fixing member 52 are located on opposite sides of the heat exchange plates, reducing interference between them.

[0189] In some embodiments of this utility model, such as Figures 12-19 As shown, the plate heat exchanger 200 has a first heat exchange channel 220 and a second heat exchange channel 230 that are separated from each other and exchange heat with each other. The plate heat exchanger 200 has a first interface 2202, a second interface 2201, a third interface 2301 and a fourth interface 2302 on the side away from the fixed support 51. The first interface 2202 and the second interface 2201 are connected to the first heat exchange channel 220, and the third interface 2301 and the fourth interface 2302 are connected to the second heat exchange channel 230.

[0190] It is understood that one of the first interface 2202 and the second interface 2201 serves as the inlet of the first heat exchange channel 220 and the other as the outlet of the first heat exchange channel 220, so that the heat exchange medium can flow into the first heat exchange channel 220 and flow out after heat exchange. Similarly, one of the third interface 2301 and the fourth interface 2302 serves as the inlet of the second heat exchange channel 230 and the other as the outlet of the second heat exchange channel 230, so that the heat exchange medium can flow into the second heat exchange channel 230 and flow out after heat exchange. Thus, through the first heat exchange channel 220 and the second heat exchange channel 230, two heat exchange media of different temperatures can flow through the plate heat exchanger 200 simultaneously. These two heat exchange media of different temperatures can exchange heat with each other, and the direction of heat exchange medium flow can be changed according to whether the air conditioning system is in heating mode or cooling mode.

[0191] The first interface 2202 and the fourth interface 2302 are along the length of the plate heat exchanger 200 (e.g., ...). Figure 3 and Figure 10 The same end of the plate heat exchanger 200 (as shown in the third direction) and along the width direction of the plate heat exchanger 200 (e.g. Figure 3 and Figure 10 As shown in the second direction, the second interface 2201 and the third interface 2301 are arranged at the same end in the length direction of the plate heat exchanger 200 and along the width direction of the plate heat exchanger 200. The first interface 2202 and the second interface 2201 are at the same end in the width direction of the plate heat exchanger 200, and the third interface 2301 and the fourth interface 2302 are at the same end in the width direction of the plate heat exchanger 200. This arrangement makes the layout of the first interface 2202, the second interface 2201, the third interface 2301 and the fourth interface 2302 reasonable, and leaves sufficient operating space around each interface, making pipeline connection and overall assembly more convenient.

[0192] Because a fixed space is formed between the fixing member 52 and the fixed support for the heat exchange device 1000 to pass through, at least a portion of the fixing member 52 is positioned between the first interface 2202 and the second interface 2201 and between the third interface 2301 and the fourth interface 2302 along the length direction of the plate heat exchanger 200. This allows the fixing member 52 to avoid the locations of the first interface 2202, the second interface 2201, the third interface 2301, and the fourth interface 2302, thus preventing obstruction or interference with the connection of the pipes at the interfaces. Furthermore, compared to placing the fixed structure at the corners of the plate heat exchanger 200, this application, by positioning the fixing member 52 between the first interface 2202, the second interface 2201, and the third interface 2301 and the fourth interface 2302, can firmly press the plate heat exchanger 200 onto the fixed support 51, effectively improving the stability and vibration resistance of the entire heat exchange device 1000.

[0193] In some embodiments of this utility model, such as Figure 13 , Figure 16 , Figure 20 and Figure 23 As shown, the outdoor unit 10000 of the air conditioner also includes a compressor 2100. Along the length of the plate heat exchanger 200, the fixing member 52 is located on the side of the throttling assembly 100 opposite to the compressor 2100. It is understood that the throttling assembly 100 has a refrigerant channel communicating with the first heat exchange channel 220 and the second heat exchange channel 230. The throttling assembly 100 is connected to the compressor 2100 so that the heat exchange medium can be delivered from the compressor 2100 to the refrigerant channel of the throttling assembly 100 or from the refrigerant channel of the throttling assembly 100 to the compressor 2100.

[0194] Therefore, along the length of the plate heat exchanger 200, the fastener 52 is located on the side of the throttle assembly 100 away from the compressor 2100, which can shorten the distance between the compressor 2100 and the throttle assembly 100, thereby shortening the distance between the connecting pipes between the two and further optimizing the overall layout of the heat exchange device 1000.

[0195] In some embodiments of this utility model, such as Figure 12 As shown, valve island 10 is located at the second interface 2201 and the third interface 2301. Both the second interface 2201 and the third interface 2301 are connected to the refrigerant flow channel. One end of the valve is located on valve island 10, and the other end of the valve extends toward the fourth interface 2302. The valve is located between the two ends in the length direction of plate heat exchanger 200.

[0196] It is understandable that, since the first interface 2202 and the fourth interface 2302 are arranged at the same end in the length direction of the plate heat exchanger 200 and along the width direction of the plate heat exchanger 200, and the second interface 2201 and the third interface 2301 are arranged at the same end in the length direction of the plate heat exchanger 200 and along the width direction of the plate heat exchanger 200, the valve provided on the valve island 10 is located between the two ends in the length direction of the plate heat exchanger 200, and the other end of the valve extends toward the fourth interface 2302, thereby achieving a further optimized layout and making the overall structure of the heat exchange device 1000 more compact.

[0197] In some embodiments of this utility model, such as Figures 1-4 and Figure 12 As shown, an installation gap is formed between the surface of the plate heat exchanger 200 near the valve island 10 and the valve and / or valve island 10, and at least a portion of the fixing member 52 is accommodated within the installation gap. Therefore, during the installation of the fixing member 52, the installation gap between the surface of the plate heat exchanger 200 near the valve island 10 and the valve and / or valve island facilitates one end of the fixing member 52 passing through the installation gap and connecting to the fixing bracket 51, thereby reducing assembly difficulty and improving assembly efficiency.

[0198] In some embodiments of this utility model, such as Figures 1-4 and Figure 12 As shown, an installation gap is formed between the surface of the plate heat exchanger 200 near the valve island 10 and the valve and / or valve island 10. The maximum width of the fixing member 52 along the length of the plate heat exchanger 200 is greater than the distance between the end of the valve near the fourth interface 2302 and the fourth interface 2302. Therefore, during the installation of the fixing member 52, the installation gap between the surface of the plate heat exchanger 200 near the valve island 10 and the valve and / or valve island 10 facilitates one end of the fixing member 52 to pass through the installation gap and connect to the fixing bracket 51, thereby reducing assembly difficulty and improving assembly efficiency.

[0199] In some embodiments of this utility model, the plate heat exchanger 200 is arranged vertically or inclined, with the first interface 2202 and the fourth interface 2302 located above or obliquely above the second interface 2201 and the third interface 2301. The length direction of the plate heat exchanger 200 is perpendicular to the direction of gravity (e.g., Figure 23 The angle between the vertical direction shown is ω2, 0°≤ω2≤30°; and / or, the angle between the axial direction of the valve and / or the direction of movement of the valve core and the direction of gravity is ω1, 0°≤ω1≤30°.

[0200] It is understandable that when the plate heat exchanger 200 is set vertically or at an angle, the first interface 2202 and the fourth interface 2302 are located above or diagonally above the second interface 2201 and the third interface 2301. This arrangement of the first interface 2202 and the fourth interface 2302 in the vertical direction, and the second interface 2201 and the third interface 2301 in the vertical direction, further optimizes the spatial layout of the plate heat exchanger 200 and facilitates the flow of refrigerant in the heat exchange path.

[0201] Meanwhile, since the valve island 10 is located at the second interface 2201 and the third interface 2301, both of which are connected to the refrigerant flow path, one end of the valve is located on the valve island 10, and the other end of the valve extends toward the fourth interface 2302. The valve is located between the two ends of the plate heat exchanger 200 along its length. By limiting the angle between the length direction of the plate heat exchanger 200 and the direction of gravity to between 0 and 30°, at least one of the following can be achieved through the valve core: opening, closing, flow regulation, and throttling opening regulation of the refrigerant flow path. At the same time, the force (support force against the gravity of the valve core) on the same circumferential surface or adjacent circumferential surfaces of the valve core is more evenly distributed. During operation, the wear on the same circumferential surface or adjacent circumferential surfaces of the valve core is more even, avoiding excessive local wear of the valve core, improving the operational reliability and life of the valve, reducing noise, and thus improving the reliability of the heat exchange device 1000.

[0202] It should be noted that ω2 can be 0°, 5°, 10°, 15°, 20°, 25°, or 30°. Preferably, ω2 is 0°-30°, and more preferably, ω2 is 0°-15°.

[0203] At the same time, the axial direction of the valve and / or the movement direction of the valve core are considered in relation to the direction of gravity (e.g., Figure 23 The included angle (in the up and down directions shown) is ω1, and satisfies 0°≤ω1≤45°. While the valve core can realize at least one of the following: opening, closing, flow regulation, and throttling opening regulation of the refrigerant flow path, the force (support force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is more evenly distributed. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more even, avoiding excessive local wear of the valve core, improving the operational reliability and life of the valve components, reducing noise, and thus improving the reliability of the heat exchange device 1000.

[0204] In some embodiments of this utility model, such as Figures 12-19 As shown, the throttle assembly 100 includes a valve island 10, which has the refrigerant flow channel and a first flow channel port 1001, a second flow channel port 1002, and a third flow channel port 1003 respectively connected to the refrigerant flow channel. The second flow channel port 1002 is connected to a second interface 2201, and the third flow channel port 1003 is connected to a third interface 2301. Thus, this arrangement allows the refrigerant flow channel of the valve island 10 to be connected to the first heat exchange flow channel 220 via the second flow channel port 1002 and the second interface 2201, and to the second heat exchange flow channel 230 via the third flow channel port 1003 and the third interface 2301.

[0205] like Figures 1-5 and Figure 12 As shown, the outdoor unit 10000 of the air conditioner also includes a first connecting pipe 600, a second connecting pipe 700, and a third connecting pipe 800. One end of the first connecting pipe 600 is connected to the first interface 2202, one end of the second connecting pipe 700 is connected to the fourth interface 2302, and one end of the third connecting pipe 800 is connected to the first flow channel 1001.

[0206] It is understood that the first connecting pipe 600 is connected to the compressor 2100 at the end opposite to the first interface 2202, so that the first heat exchange channel 220 can exchange heat exchange medium with the compressor 2100 through the first connecting pipe 600. The second connecting pipe 700 is connected to the compressor 2100 at the end opposite to the fourth interface 2302, so that the second heat exchange channel 230 can exchange heat exchange medium with the compressor 2100 through the second connecting pipe 700. The third connecting pipe 800 is connected to the compressor 2100 at the end opposite to the first channel opening 1001, so that the refrigerant channel in the valve island 10 can exchange heat exchange medium with the compressor 2100 through the third connecting pipe 800.

[0207] The first connecting pipe 600 extends in the same direction from the end opposite to the first interface 2202, the second connecting pipe 700 extends in the same direction from the end opposite to the fourth interface 2302, and the third connecting pipe 800 extends in the same direction from the end opposite to the first flow channel opening 1001. Thus, by arranging the ends of the first connecting pipe 600 (away from the first interface 2202), the second connecting pipe 700 (away from the fourth interface 2302), and the third connecting pipe 800 (away from the first flow channel opening 1001) in the same direction, a unidirectional outgoing line can be formed between the heat exchanger 1000 and the compressor 2100. This facilitates the welding connection between the first connecting pipe 600, the second connecting pipe 700, and the third connecting pipe 800 and the compressor 2100, effectively shortens the pipe length, reduces the operational difficulty of the assembly station and the stress concentration of the weld, further improves the compactness of the layout, and facilitates subsequent maintenance.

[0208] In some embodiments of this utility model, the outdoor unit 10000 of the air conditioner includes a compressor 2100, a first connecting pipe 600 extending away from the first interface 2202, a second connecting pipe 700 extending away from the fourth interface 2302, and a third connecting pipe 800 extending away from the first flow channel 1001 toward the side where the compressor 2100 is located.

[0209] Therefore, by extending the first connecting pipe 600 away from the first interface 2202, the second connecting pipe 700 away from the fourth interface 2302, and the third connecting pipe 800 away from the first flow channel 1001 towards the compressor 2100, on the one hand, the pipe bends and crossings to the compressor 2100 are reduced, the effective length of the pipe is shortened, and the friction resistance and local resistance are reduced. On the other hand, the first flow channel 1001, the second flow channel 1002, and the third flow channel 1003 form the same-side outlet direction near the compressor 2100, which facilitates the same-side welding, insulation and leakage detection around the compressor 2100, reduces the difficulty, and improves the consistency of the weld and the reliability of the seal.

[0210] In some embodiments of this utility model, such as Figures 1-5 As shown, at least one of the first connecting pipe 600 and the second connecting pipe 700 includes a first segment 61 and a second segment 62. The first segment 61 extends along the thickness direction of the plate heat exchanger 200, and one end of the first segment 61 is connected to the first interface 2202 or the fourth interface 2302. One end of the second segment 62 is connected to the other end of the first segment 61. Along the thickness direction of the plate heat exchanger 200, the second segment 62 is located on the side of the throttling device assembly 100 away from the plate heat exchanger 200 and is spaced apart from the throttling device assembly 100.

[0211] It is understandable that, since the end of the first connecting pipe 600 away from the first interface 2202, the end of the second connecting pipe 700 away from the fourth interface 2302, and the end of the third connecting pipe 800 away from the first flow channel 1001 all extend in the same direction, one end of the first connecting pipe 600 is connected to the first interface 2202, one end of the second connecting pipe 700 is connected to the fourth interface 2302, the second flow channel 1002 of the valve island 10 is connected to the second interface 2201, and the third flow channel 1003 of the valve island 10 is connected to the third interface 2301, in order to avoid the first connecting pipe 600 and Interference between the second connecting pipe 700 and the throttling device assembly 100 is prevented by the first segment 61 extending along the thickness direction of the plate heat exchanger 200, and the second segment 62 located on the side of the throttling device assembly 100 away from the plate heat exchanger 200 and spaced apart from the throttling device assembly 100. This ensures that both the first segment 61 and the second segment 62 are spaced apart from the throttling device assembly 100, thereby avoiding contact friction or mutual interference between the first connecting pipe 600 and the second connecting pipe 700 and the throttling device assembly 100 during assembly and operation, and reducing wear and noise caused by vibration.

[0212] In some embodiments of this invention, the second segment 62 extends along a straight line or a curve. Thus, as... Figures 1-5 As shown, the second segment 62 of the second connecting pipe 700 extends in a straight line, passing over the throttle assembly 100 with minimal bends, so as to shorten the path of the second segment 62, reduce pressure, and simplify processing and assembly; or, in another case, as Figures 1-5 As shown, the second segment 62 of the first connecting pipe 600 extends along a curve, avoiding the local protrusions of the throttle assembly 100 in a conformal manner and with a suitable bending radius, which can reduce stress concentration and fatigue risk at the weld. Thus, by extending the second segment 62 in a straight line or a curve, the gap between the second segment 62 and the throttle assembly 100 is maintained while improving versatility.

[0213] In some embodiments of this utility model, such as Figures 1-5As shown, at least one of the first connecting pipe 600 and the second connecting pipe 700 further includes a third segment 63 and a fourth segment 64. The third segment 63 extends along the thickness direction of the plate heat exchanger 200, one end of the third segment 63 is connected to the end of the second segment 62 away from the first segment 61, and the other end extends towards the fixed support 51. The fourth segment 64 extends along the length direction of the plate heat exchanger 200, and one end of the fourth segment 64 is connected to the end of the third segment 63 away from the second segment 62.

[0214] Understandably, since the second segment 62 is spaced apart from the throttling device assembly 100 along the thickness direction of the plate heat exchanger 200, the third segment 63 is then bent towards the fixed bracket 51 along the thickness direction of the plate heat exchanger 200. This further avoids interference between the third segment 63 and the throttling device assembly 100, and also reduces the space occupied by the first connecting pipe 600 and the second connecting pipe 700 in the thickness direction of the plate heat exchanger 200. Simultaneously, the fourth segment 64 is arranged along the length direction of the plate heat exchanger 200, forming a straight longitudinal direction, which facilitates connection with the compressor 2100's output wiring, facilitates the installation of the heat exchange device 1000, and reduces assembly difficulty. This ensures the compact arrangement and long-term reliability of the heat exchange device 1000.

[0215] In some embodiments of this utility model, such as Figures 12-19 As shown, the valve island 10 has a first flow channel port 1001, a second flow channel port 1002, and a third flow channel port 1003 that are connected to the refrigerant flow channel. The second flow channel port 1002 is connected to the second interface 2201, and the third flow channel port 1003 is connected to the third interface 2301. The valve island 10 also has a branch valve cavity. The refrigerant flow channel includes a main flow path and a branch flow path. The two ends of the main flow path are connected to the first flow channel port 1001 and the second flow channel port 1002, respectively. The two ends of the branch flow path are connected to the main flow path and the branch valve cavity, respectively. The branch valve cavity is connected to the third flow channel port 1003. The valve includes a branch valve, which is configured to be connected to and communicate with the branch valve cavity.

[0216] Thus, the heat exchange medium can flow sequentially through the first flow channel 1001, the first flow path 101, the first valve chamber 111, the second flow path 102, the second flow channel 1002, and the plate heat exchanger 200, or it can flow sequentially through the first flow channel 1001, the first flow path 101, the first valve chamber 111, the third flow path 103, the second valve chamber 121, the third flow channel 1003, and the plate heat exchanger 200, thereby achieving the connection between the valve 10 and the plate heat exchanger 200.

[0217] In some embodiments of this utility model, such as Figures 12-19As shown, the valve island 10 also has a first valve chamber 111 and a second valve chamber 121. The refrigerant flow channel includes a first flow path 101, a second flow path 102 and a third flow path 103. The two ends of the first flow path 101 are connected to the first flow channel opening 1001 and the first valve chamber 111, respectively. The two ends of the second flow path 102 are connected to the second flow channel opening 1002 and the first valve chamber 111, respectively. The main flow path includes the first flow path 101, the first valve chamber 111 and the second flow path 102. The two ends of the third flow path 103 are connected to the first valve chamber 111 and the second valve chamber 121, respectively. The second valve chamber 121 is connected to the third flow channel opening 1003. The branch flow path includes the third flow path 103. The branch valve chamber is the second valve chamber 121. The valves include a first valve 20 and a second valve 30. The first valve 20 is configured to be connected and communicate with the first valve chamber 111, the second valve 30 is configured to be connected and communicate with the second valve chamber 121, and the branch valve is the second valve 30.

[0218] Thus, the heat exchange medium can flow sequentially through the first flow channel 1001, the first flow path 101, the first valve chamber 111, the second flow path 102, the second flow channel 1002, and the plate heat exchanger 200, or it can flow sequentially through the first flow channel 1001, the first flow path 101, the first valve chamber 111, the third flow path 103, the second valve chamber 121, the third flow channel 1003, and the plate heat exchanger 200, thereby achieving communication between the first valve 20 and the second valve 30 and the plate heat exchanger 200.

[0219] In some embodiments of this invention, at least one of the main flow path and branch flow paths forms a capillary flow path. The equivalent inner diameter of the capillary flow path is less than or equal to 5 mm; and / or, the length of the capillary flow path is greater than or equal to 5 mm. Here, a capillary flow path refers to a pipe with a smaller equivalent inner diameter, for example, the equivalent inner diameter L of the capillary flow path is less than 5 mm. The capillary flow path can be defined by a circular tube or other shaped tube, and the equivalent inner diameter refers to the diameter of a circle with the same cross-sectional area as the capillary flow path. For example, in some embodiments, the equivalent inner diameter of the capillary flow path is L, where L ≤ 5 mm. For example, L is 3 mm, 3.2 mm, 3.5 mm, 3.8 mm, 4 mm, 4.5 mm, 5 mm, etc.

[0220] The smaller inner diameter of the capillary flow path reduces the pressure of the heat exchange medium (such as refrigerant) within it, making it easier for the liquid refrigerant to vaporize. This also reduces the likelihood of gas-liquid two-phase mixing at the outlet, thus minimizing refrigerant noise caused by the two-phase state. Furthermore, the smaller inner diameter accelerates the refrigerant flow rate, resulting in more uniform gas-liquid mixing within the capillary flow path. Smaller, more evenly distributed bubbles further reduce the likelihood of flow blockage, further lowering noise levels within the capillary flow path and consequently reducing noise within the valve island.

[0221] Specifically, in some embodiments, such as Figure 11 and Figure 12 As shown, the throttle assembly 100 has an inlet and an outlet. The inlet is used to input the heat exchange medium into the throttle assembly 100, and the outlet is used to discharge the heat exchange medium from the throttle assembly 100.

[0222] The heat exchanger 1000 has a heating mode and a cooling mode. In cooling mode, the first flow channel 1001 is the inlet, and the second flow channel 1002 and the third flow channel 1003 are both outlets. The heat exchange medium flows into the throttling device assembly 100 from the first flow channel 1001 and flows out of the throttling device assembly 100 from the second flow channel 1002 and the third flow channel 1003 to flow into the first heat exchange channel 220 and the second heat exchange channel 230 of the plate heat exchanger 200, respectively. Specifically, as shown... Figure 11 and Figures 17-19 As shown, Figure 11 The solid arrows indicate the flow direction of the heat exchange medium in the cooling mode. The heat exchange medium flows into the first flow path 101 from the first flow channel port 1001 and passes through the first valve 20. Then it splits into two paths and flows into the second flow path 102 and the third flow path 103. The heat exchange medium flowing into the second flow path 102 flows into the first heat exchange channel 220 of the plate heat exchanger 200 from the second flow channel port 1002. The heat exchange medium flowing into the third flow path 103 passes through the second valve 30 and then flows into the second heat exchange channel 230 of the plate heat exchanger 200 from the third flow channel port 1003.

[0223] In cooling mode, the heat exchange medium flowing into the first heat exchange channel 220 has a lower temperature after being throttled by the first valve 20, and the heat exchange medium flowing into the second heat exchange channel 230 has an even lower temperature after being throttled by the first valve 20 and the second valve 30. After exchanging heat with the lower-temperature heat exchange medium in the first heat exchange channel 220 and the even lower-temperature heat exchange medium in the second heat exchange channel 230, the temperature of the heat exchange medium flowing out of the plate heat exchanger 200 from the first heat exchange channel 220 is even lower, resulting in better heat exchange effect and higher cooling efficiency of the plate heat exchanger 200.

[0224] In heating mode, the second flow channel 1002 is the inlet, and the first flow channel 1001 and the third flow channel 1003 are both outlets. The heat exchange medium flows into the throttling device assembly 100 from the second flow channel 1002 and flows out of the throttling device assembly 100 from the first flow channel 1001 and the third flow channel 1003. The heat exchange medium flowing out of the throttling device assembly 100 from the third flow channel 1003 flows into the second heat exchange channel 230 of the plate heat exchanger 200. Specifically, as... Figure 11 As shown, Figure 11The dashed arrows indicate the flow direction of the heat exchange medium in the heating mode. The heat exchange medium in the first heat exchange channel 220 flows into the second flow path 102 from the second flow path opening 1002, and then splits into two flows into the first flow path 101 and the third flow path 103. The heat exchange medium flowing into the first flow path 101 flows out from the first flow path opening 1001 after passing through the first valve 20. The heat exchange medium flowing into the third flow path 103 flows into the second heat exchange channel 230 of the plate heat exchanger 200 after passing through the second valve 30 and passing through the third flow path opening 1003.

[0225] In heating mode, the heat exchange medium in the first heat exchange channel 220 is not throttled by the first valve 20 and the second valve 30, while the heat exchange medium in the second heat exchange channel 230 is throttled by the second valve 30 and has a lower temperature. After heat exchange between the higher-temperature heat exchange medium in the first heat exchange channel 220 and the lower-temperature heat exchange medium in the second heat exchange channel 230, the temperature of the heat exchange medium flowing out of the plate heat exchanger 200 from the second heat exchange channel 230 is higher. In the air conditioner 2000, including the heat exchange device 1000, the higher temperature and pressure of the heat exchange medium flowing from the plate heat exchanger 200 into the compressor 2100 is beneficial for increasing the suction volume of the compressor 2100.

[0226] By changing the inlet and outlet of the throttle assembly 100 in cooling and heating modes, the working effect of the heat exchange device 1000 in cooling and heating modes can be improved, which is practical.

[0227] In some embodiments of this utility model, the axial direction of the first valve member 20 and / or the movement direction of the valve core of the first valve member 20 and / or the axial direction of the first valve cavity 111 are opposite to the direction of gravity (e.g., Figure 23 The included angle (in the up and down directions shown) is ω11, where 0°≤ω11≤30°. Therefore, while the valve core of the first valve component 20 can achieve at least one of the following: opening, closing, flow regulation, and throttling adjustment of the refrigerant flow path, the force (supporting force against the weight of the valve core) on the same or adjacent circumferential surfaces of the valve core of the first valve component 20 is more evenly distributed. This results in more uniform wear on the same or adjacent circumferential surfaces of the valve core during operation, preventing excessive local wear of the valve core, improving the operational reliability and lifespan of the valve component, reducing noise, and thus improving the reliability of the heat exchange device 1000. It should be noted that ω11 can be 0°, 5°, 10°, 15°, 20°, 25°, or 30°. Preferably, ω11 is 0°-30°, and more preferably, ω11 is 0°-15°.

[0228] In some embodiments of this utility model, the angle between the axial direction of the second valve element 30 (i.e., the branch valve element) and / or the movement direction of the valve core of the second valve element 30 (i.e., the branch valve element) and / or the axial direction of the second valve cavity 121 (i.e., the branch valve cavity) and the direction of gravity is ω11, where 0°≤ω11≤30°. Thus, while at least one of opening, closing, flow regulation, and throttling adjustment of the refrigerant flow path can be achieved through the valve core of the second valve element 30 (i.e., the branch valve element), the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core of the second valve element 30 is relatively uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core of the second valve element 30 is relatively uniform, avoiding excessive local wear of the valve core of the second valve element 30, improving the operational reliability and lifespan of the valve element, reducing noise, and thereby improving the reliability of the heat exchange device 1000. It should be noted that ω11 can be 0°, 5°, 10°, 15°, 20°, 25°, or 30°. Preferably, ω11 is 0°-30°, and more preferably, ω11 is 0°-15°.

[0229] In some embodiments of this utility model, such as Figures 12-17 As shown, the angle between the axis of the first valve 20 and the axis of the second valve 30 is α, where 0° ≤ α ≤ 60°. For example, the angle between the projections of the axes of the first valve 20 and the second valve 30 onto the plane containing the end plate of the plate heat exchanger 200 is α. For example, the value of α can be 0°, 5°, 10°, 20°, 30°, 40°, 45°, 50°, 60°, etc.

[0230] If the angle α between the axis of the first valve 20 and the axis of the second valve 30 is too large, it will increase the space occupied by the first valve 20 and the second valve 30 in the width direction of the plate heat exchanger, resulting in a large space occupied by the throttle assembly 100 and making installation more difficult. This application ensures that the angle α satisfies 0°≤a≤60°, which can appropriately reduce the space occupied by the first valve 20 and the second valve 30, making the structure of the throttle assembly 100 more compact and easier to install.

[0231] Furthermore, the first valve component 20 includes a first coil portion 201 and a first valve core 202. The first coil portion 201 is disposed above or diagonally above the first mounting portion 11. The second valve component 30 includes a second coil portion 301 and a second valve core 302. The second coil portion 301 is disposed above or diagonally above the second mounting portion 12. By limiting 0° < a ≤ 60°, the installation of the first coil portion 201 and the second coil portion 301 is facilitated, and the assembly difficulty is reduced.

[0232] In some embodiments, such as Figures 12-17As shown, the angle between the axis of the first valve chamber 111 and the axis of the second valve chamber 121 is b, where 0° ≤ b ≤ 60°. For example, the angle between the projections of the axes of the first valve chamber 111 and the second valve chamber 121 onto the plane containing the end plate is b. For example, the value of b can be 0°, 5°, 10°, 20°, 30°, 40°, 45°, 50°, 60°, etc. In some specific embodiments, such as... Figure 17 As shown, b = a.

[0233] If the included angle b between the axis of the first valve chamber 111 and the axis of the second valve chamber 121 is too large, it will increase the space occupied by the first valve chamber 111 and the second valve chamber 121 in the width direction of the plate heat exchanger, resulting in a large space occupied by the valve island 10 and a large overall volume of the throttle assembly 100, making installation more difficult. This application ensures that the included angle b satisfies 0°≤b≤60°, which can appropriately reduce the space occupied by the first valve chamber 111 and the second valve chamber 121, making the structure of the valve island 10 more compact and the overall structure of the throttle assembly 100 more compact, thus facilitating installation.

[0234] Furthermore, the first valve component 20 includes a first coil portion 201 and a first valve core 202, with the first coil portion 201 disposed above or diagonally above the first valve core 202. The second valve component 30 includes a second coil portion 301 and a second valve core 302, with the second coil portion 301 disposed above or diagonally above the second valve core 302. By limiting 0° < b ≤ 60°, the installation of the first coil portion 201 and the second coil portion 301 is facilitated, reducing assembly difficulty.

[0235] In some embodiments of this utility model, such as Figures 12-18 As shown, a fourth flow path 104 for the flow of heat exchange medium is also defined within the valve island 10. The two ends of the fourth flow path 104 are connected to the second valve chamber 121 and the third flow channel 1003, respectively. That is, the second valve chamber 121 is indirectly connected to the third flow channel 1003 through the fourth flow path 104.

[0236] The first flow path 101 includes a first straight section 1011 that is connected to the first valve chamber 111 and forms a straight segment; the second flow path 102 includes a second straight section 1021 that is connected to the second flow channel opening 1002 and forms a straight segment; the third flow path 103 includes a third straight section 1031 that is connected to the second valve chamber 121 and forms a straight segment; and the fourth flow path 104 includes a fourth straight section 1041 that is connected to the third flow channel opening 1003 and forms a straight segment.

[0237] The second straight portion 1021 and the fourth straight portion 1041 are parallel, which can reduce the distance between the second flow channel opening 1002 and the third flow channel opening 1003, and make the through direction of the opening of the plate heat exchanger 200 for communicating with the second flow channel opening 1002 and the third flow channel opening 1003 respectively parallel to the second straight portion 1021 and the fourth straight portion 1041, so that the second flow channel opening 1002 and the third flow channel opening 1003 can be easily connected to the plate heat exchanger 200.

[0238] In some embodiments, such as Figures 12-18 As shown, the angle between the extending direction of the first straight portion 1011 and the axial direction of the first valve member 20 is c, where 60° ≤ c ≤ 120°. Here, the axial direction of the first valve member 20 refers to the axis of the valve core of the first valve member 20. For example... Figure 18 As shown, the value of c can be 60°, 70°, 75°, 80°, 85°, 90°, 100°, 110°, 115°, 120°, etc.

[0239] In some related technologies, the heat exchange medium enters the first valve member along the axial direction. When flowing through the valve core, the heat exchange medium directly impacts the valve core from the axial direction of the first valve member, causing the valve core to move along the throttling channel and repeatedly push the valve core up, generating collision noise. However, this application, by making the angle c between the extension direction of the first straight portion 1011 and the axial direction of the first valve member 20 satisfying 60°≤c≤120°, allows the flow direction of the heat exchange medium when flowing through the first straight portion 1011 to form an angle with the axis of the first valve member 20. This reduces the flow velocity of the heat exchange medium along the axial direction of the first valve member 20, and reduces the impact force of the heat exchange medium on the valve core along the axial direction of the first valve member 20, thereby reducing the noise caused by the impact or pushing of the valve core by the heat exchange medium.

[0240] In some embodiments, such as Figures 12-18 As shown, the angle between the extending direction of the third straight section 1031 and the axial direction of the second valve element 30 is d, where 60°≤d≤120°. Here, the axial direction of the second valve element 30 refers to the axis of the valve core of the second valve element 30. For example... Figure 17 As shown, the value of d can be 60°, 70°, 75°, 80°, 85°, 90°, 100°, 110°, 115°, 120°, etc.

[0241] By ensuring that d satisfies 60°≤d≤120°, the flow direction of the heat exchange medium when flowing through the third straight section 1031 forms an angle with the axis of the second valve 30. This reduces the flow velocity of the heat exchange medium along the axis of the second valve 30, and reduces the impact force of the heat exchange medium on the valve core along the axis of the second valve 30. This can reduce the noise caused by the valve core being impacted or lifted by the heat exchange medium.

[0242] In some embodiments of this utility model, such as Figures 12-17 As shown, a fifth flow path 105 for the flow of heat exchange medium is defined within the valve island 10. The second flow path 102 and the third flow path 103 are both connected to and communicate with one end of the fifth flow path 105. The other end of the fifth flow path 105 communicates with the first valve chamber 111. That is, the first valve chamber 111 is connected to the fifth flow path 105 to simultaneously connect to the second flow path 102 and the third flow path 103. Through the fifth flow path 105, one end of the first valve chamber 111 can be divided into two paths to simultaneously connect to the second flow path 102 and the third flow path 103, eliminating the need to add an opening at one end of the first valve chamber 111 to separately connect to the second flow path 102 and the third flow path 103. This simplifies the structure of the valve island 10 and improves its structural strength.

[0243] In some embodiments, such as Figures 12-17 As shown, the third flow path 103 is bent and extended. By adjusting the included angle between the bent and extended sections of the third flow path 103, the two ends of the third flow path 103 can be made perpendicular to the adjacent flow path, which helps to reduce the flow resistance at both ends of the third flow path 103 and increase the flow velocity of the heat exchange medium.

[0244] For example, in some embodiments, such as Figures 12-17 As shown, the third flow path 103 includes a first segment and a second segment (i.e., the third straight section 1031) that are connected. Both the first and second segments are arranged in a straight line, and the extension directions of the first and second segments are set at an angle. The end of the first segment away from the second segment is connected to the first valve chamber 111, and the end of the second segment away from the first segment is connected to the second valve chamber 121. By adjusting the angle between the extension directions of the first and second segments, the extension direction of the first segment can be made perpendicular to the extension directions of both the fifth flow path 105 and part of the second flow path 102, and the extension direction of the second segment can be perpendicular to the axial direction of the second valve 30, which helps to reduce the flow resistance at both ends of the third flow path 103. By adjusting the angle between the bent extension segments in the third flow path 103, the manufacturing of the third flow path 103 is facilitated, and the angle between the second segment 10123 and the axial direction of the second valve 30 is easier to control, thereby reducing the refrigerant noise generated when the refrigerant flows through the second valve 30.

[0245] In some embodiments, such as Figures 12-19As shown, the first flow path 101 extends in a bent manner. Specifically, the first flow path 101 includes a first channel and a second channel (i.e., a first straight section 1011) that are connected. Both the first channel and the second channel are arranged in a straight line, and the extension directions of the first channel and the second channel are set at an angle. The end of the first channel away from the second channel is connected to the first flow port 1001, and the end of the second channel away from the first channel is connected to the first valve chamber 111. By adjusting the angle between the bent and extended sections in the first flow path 101, the manufacturing of the first flow path 101 is facilitated, and the angle between the second channel (i.e., the first straight section 1011) and the axial direction of the first valve component 20 is easily controlled, thereby reducing the refrigerant noise generated when the refrigerant flows through the first valve component 20.

[0246] In some embodiments, such as Figures 12-19 As shown, the second flow path 102 extends in a bent manner. Specifically, the second flow path 102 includes a first part and a second part (i.e., the second straight part 1021) that are connected. Both the first part and the second part are arranged in a straight line. The extension direction of the first part and the extension direction of the second part are set at an angle. The end of the first part away from the second part is connected to the first valve chamber 111, and the end of the second part away from the first part is connected to the second flow channel opening 1002. By adjusting the angle between the bent extension segments in the second flow path 102, the manufacturing of the second flow path 102 is facilitated, and the extension direction of the first part can be made perpendicular to the extension direction of the third flow path 103, the first part and the second part are perpendicular, and the extension direction of the second part coincides with the opening direction of the second interface 2201 of the heat exchanger 200, which helps to reduce the flow resistance at both ends of the second flow path 102.

[0247] In some embodiments of this utility model, such as Figures 12-17 As shown, the valve island 10 includes a first mounting portion 11, which forms a first valve cavity 111. At least a portion of the first valve member 20 is installed in the first valve cavity 111, which increases the contact area between the first valve member 20 and the inner wall of the first valve cavity 111, thereby increasing the connection strength and sealing performance between the first valve member 20 and the valve island 10. The first valve member 20 can be fixedly installed or detachably installed in the first valve cavity 111, ensuring that the first valve member 20 is securely installed to the first mounting portion 11.

[0248] In some embodiments, such as Figures 12-17As shown, the valve island 10 includes a second mounting portion 12, which forms a second valve cavity 121. At least a portion of the second valve member 30 is installed within the second valve cavity 121, which increases the contact area between the second valve member 30 and the inner wall of the second valve cavity 121, thereby increasing the connection strength and sealing performance between the second valve member 30 and the valve island 10. The second valve member 30 can be fixedly installed or detachably installed within the second valve cavity 121, ensuring that the second valve member 30 is securely installed to the second mounting portion 12.

[0249] In some embodiments, such as Figures 12-17 As shown, the angle between the axis of the first mounting part 11 and the axis of the second mounting part 12 is e, where 0° ≤ e ≤ 60°. For example, the angle between the projections of the axes of the first mounting part 11 and the second mounting part 12 onto the plane containing the end plate is e. For example, the value of e can be 0°, 5°, 10°, 20°, 30°, 40°, 45°, 50°, 60°, etc. In some specific embodiments, such as... Figure 17 As shown, e = a.

[0250] If the angle e between the axis of the first mounting part 11 and the axis of the second mounting part 12 is too large, it will increase the space occupied by the first mounting part 11 and the second mounting part 12, resulting in a large space occupied by the valve island 10 and a large overall volume of the throttle assembly 100, making installation more difficult. This application ensures that the angle e satisfies 0°≤e≤60°, which can appropriately reduce the space occupied by the first mounting part 11 and the second mounting part 12, making the structure of the valve island 10 more compact and the overall structure of the throttle assembly 100 more compact, thus facilitating installation.

[0251] In some embodiments, such as Figures 17-18 As shown, one end of the first valve member 20 includes a first valve port 21, a first overflow port 22, and a second valve port 23. The heat exchange medium flows from one of the first valve port 21 and the second valve port 23 through the first overflow port 22 to enter the first valve member 20 for throttling, and then flows out from the other of the first valve port 21 and the second valve port 23. The first valve port 21, the first overflow port 22, and the second valve port 23 are located at one end of the first valve member 20, making the structure of the first valve member 20 more compact. In some embodiments, the first valve member 20 is also equipped with a coil.

[0252] In some embodiments, such as Figures 17-18As shown, one end of the second valve 30 includes a third valve port 31, a second overflow port 32, and a fourth valve port 33. The heat exchange medium flows from one of the third valve port 31 and the fourth valve port 33 through the second overflow port 32 to enter the second valve 30 for throttling, and then flows out from the other of the third valve port 31 and the fourth valve port 33. The third valve port 31, the second overflow port 32, and the fourth valve port 33 are located at one end of the second valve 30, making the structure of the second valve 30 more compact. In some embodiments, the second valve 30 is also equipped with a coil.

[0253] In some embodiments of this utility model, such as Figure 2 , Figure 4 ,and Figure 22 As shown, the first valve 20 is an electronic expansion valve or a solenoid valve. The first valve 20 includes a first coil portion 201 and a first valve core 202, with the first coil portion 201 positioned above or diagonally above the first valve core 202. Thus, by using an electronic expansion valve or a solenoid valve, the first valve 20, through the first coil portion 201 and the first valve core 202, controls the flow rate and pressure of the heat exchange medium flowing through it, achieving precise regulation of the heat exchange medium flow. For example, the first valve 20 can throttle and reduce the pressure of the heat exchange medium flowing through it, lowering its temperature and humidity.

[0254] Meanwhile, by positioning the first coil section 201 above or diagonally above the first valve core 202, the wiring terminals of the first coil section 201 can be placed in a more easily operable spatial position, effectively avoiding wiring difficulties caused by the compact structure of the first valve component 20 and improving assembly efficiency.

[0255] In some embodiments of this utility model, such as Figure 2 , Figure 4 ,and Figure 22 As shown, the second valve 30 is an electronic expansion valve or a solenoid valve. The second valve 30 includes a second coil portion 301 and a second valve core 302, with the second coil portion 301 positioned above or diagonally above the second valve core 302. Thus, by using an electronic expansion valve or a solenoid valve, the second valve 30, through the second coil portion 301 and the second valve core 302, controls the flow rate and pressure of the heat exchange medium flowing through it, achieving precise flow regulation of the heat exchange medium. For example, the second valve 30 can throttle and reduce the pressure of the heat exchange medium flowing through it, lowering its temperature and humidity.

[0256] Meanwhile, by positioning the second coil section 301 above or diagonally above the second valve core 302, the wiring terminals of the first coil section 201 can be placed in a more easily operable spatial position, effectively avoiding wiring difficulties caused by the compact structure of the second valve component 30 and improving assembly efficiency.

[0257] In some embodiments of this utility model, such as Figure 2 , Figure 4 ,and Figure 22 As shown, the first valve component 20 also includes a first support component 203. One end of the first support component 203 is connected to the first coil section 201, and the other end of the first support component 203 is connected to the valve island 10 via a first fastener 204. The first fastener 204 faces the side of the valve island 10 away from the plate heat exchanger 200. Thus, the first support component 203 achieves a fixed connection between the first coil section 201 and the valve island 10, ensuring that the first coil section 201 is stably positioned above or diagonally above the first valve core 202, effectively preventing the first coil section 201 from shaking or shifting, improving the reliability of the first valve component 20 and the safety of the heat exchange device 1000.

[0258] In some embodiments of this utility model, such as Figure 2 , Figure 4 ,and Figure 22 As shown, the second valve component 30 also includes a second support component 303. One end of the second support component 303 is connected to the second coil section 301, and the other end of the second support component 303 is connected to the valve island 10 via a second fastener 304. The second fastener 304 faces the side of the valve island 10 away from the plate heat exchanger 200. Thus, the second support component 303 achieves a fixed connection between the second coil section 301 and the valve island 10, ensuring that the second coil section 301 is stably positioned above or diagonally above the second valve core 302. This effectively prevents the second coil section 301 from shaking or shifting, improving the reliability of the second valve component 30 and the safety of the heat exchange device 1000.

[0259] In some embodiments of this utility model, such as Figure 2 , Figure 4 , Figure 22 and Figure 26 As shown, the outer casing 41 includes a front casing and a side casing that surrounds the compressor cavity, with the first fastener 204 facing either the front casing or the side casing. This arrangement ensures that the first fastener 204 is installed facing either the front casing or the side casing, allowing it to be exposed when the corresponding front casing or side casing is removed. This facilitates wiring of the first coil section 201 and inspection and maintenance of the first valve component 20.

[0260] In some embodiments of this utility model, such as Figure 2 , Figure 4 , Figure 22 and Figure 26 As shown, the second fastener 304 faces the front or side housing. This arrangement ensures that the second fastener 304 is installed facing the front or side housing, allowing it to be exposed when the corresponding front or side housing is removed. This facilitates wiring of the second coil section 301 and inspection and maintenance of the second valve 30.

[0261] In some embodiments of this utility model, such as Figure 12 , Figure 13 , Figure 20 and Figure 22 As shown, the first mounting portion 11 has a first opening 112 on the side facing the first interface 2202, which communicates with the first valve chamber 111. The first valve core 202 is installed into the first valve chamber 111 through the first opening 112. It can be understood that since the first interface 2202 is connected to the first connecting pipe 600, the first opening 112 on the side of the first mounting portion 11 facing the first interface 2202, which communicates with the first valve chamber 111, optimizes the spatial layout of the valve island 10 and the plate heat exchanger 200, and reduces the flow resistance of the refrigerant between the refrigerant flow path and the heat exchange flow path.

[0262] In some embodiments of this utility model, such as Figure 12 , Figure 13 , Figure 20 and Figure 22 As shown, the second mounting portion 12 has a second opening 122 on the side facing the fourth interface 2302, which communicates with the second valve chamber 121. The second valve core 302 is installed into the second valve chamber 121 through the second opening 122. It can be understood that since the fourth interface 2302 is connected to the second connecting pipe 700, the second opening 122 on the side of the second mounting portion 12 facing the fourth interface 2302, which communicates with the second valve chamber 121, optimizes the spatial layout of the valve island 10 and the plate heat exchanger 200, and reduces the flow resistance of the refrigerant between the refrigerant flow path and the heat exchange flow path.

[0263] In some embodiments of this utility model, such as Figure 12 , Figure 13 and Figure 22 As shown, the first opening 112 and the second opening 122 face the same side, and the first interface 2202 and the fourth interface 2302 are located between the axis of the first opening 112 and the axis of the second opening 122.

[0264] Therefore, this arrangement reduces interference between the second connecting pipe 700 connected to the fourth interface 2302 and the first connecting pipe 600 connected to the first interface 2202 and the first valve 20, as well as reduces interference between the second connecting pipe 700 connected to the fourth interface 2302 and the first connecting pipe 600 connected to the first interface 2202 and the second valve 30, further optimizing the spatial layout of the valve island 10 and the plate heat exchanger 200. Simultaneously, it facilitates the installation of the first valve core 202 from the direction of the first opening 112 into the first valve cavity 111, and facilitates the installation of the second valve core 302 from the direction of the second opening 122 into the second valve cavity 121, reducing assembly difficulty and improving assembly efficiency.

[0265] In some embodiments, such as Figures 12-19 As shown, both the first valve 20 and the second valve 30 are used to control the flow rate and pressure of the heat exchange medium flowing through them, so as to achieve precise flow regulation of the heat exchange medium. For example, both the first valve 20 and the second valve 30 can throttle and reduce the pressure of the heat exchange medium flowing through them, thereby reducing the temperature and pressure of the heat exchange medium. The first valve 20 is an electronic expansion valve, which includes a first valve shell and a first valve core 202. The first valve shell forms a first throttling channel communicating with the first valve chamber 111, and at least a portion of the first valve core 202 is movably disposed within the first throttling channel. The second valve 30 is an electronic expansion valve, which includes a second valve shell and a second valve core 302. The second valve shell forms a second throttling channel communicating with the second valve chamber 121, and at least a portion of the second valve core 302 is movably disposed within the second throttling channel. The first valve 20 and the second valve 30 can also be thermostatic expansion valves or other types of throttling devices.

[0266] By installing the first valve 20 and the second valve 30 on the valve island 10, the valve island 10, the first valve 20 and the second valve 30 are integrated, reducing the space occupied by the valve island 10, the first valve 20 and the second valve 30, improving the structural compactness of the throttle assembly 100, and realizing the miniaturization of the throttle assembly 100 and the plate heat exchanger 200 as a whole.

[0267] The first valve 20 and the second valve 30 can both throttle and reduce the pressure of the heat exchange medium flowing through them. By adjusting the opening degree of the first valve 20 and the second valve 30, the degree of throttling and pressure reduction of the heat exchange medium can be adjusted, thereby achieving the regulation of the pressure and temperature of the heat exchange medium within the valve island 10.

[0268] The throttling device assembly 100 can define multiple flow paths for the heat exchange medium, both ends of which are connected to the outside of the throttling device assembly 100. The heat exchange medium in each flow path flows through at least one of the first valve 20 and the second valve 30. By adjusting the first flow port 1001, the second flow port 1002, and the third flow port 1003 as either inlets or outlets, the flow path of the heat exchange medium in the throttling device assembly 100 can be adjusted. The flow paths of the throttling device assembly 100 are diverse and flexibly adjustable. Combined with the adjustment of the opening degree of the first valve 20 and the second valve 30, the throttling function of the throttling device assembly 100 is made more diverse.

[0269] According to some embodiments of this utility model, refer to Figure 12 and Figure 22The angle between the axis of the first valve element 20 and the length direction of the plate heat exchanger 200 is α1, where 0°≤α1≤45°. For example, the axis of the first valve element 20 can be the axis of the valve core of the first valve element 20, and the axis of the first valve element 20 is L1. The value of α1 can be 0°, 5°, 10°, 30°, or 45°, etc. By ensuring that the angle α1 between the axis of the first valve element 20 and the length direction of the plate heat exchanger 200 satisfies 0°≤α1≤45°, the overall structure of the throttling device assembly 100 can be made more compact, reducing the space occupied by the throttling device assembly 100.

[0270] According to some embodiments of this utility model, refer to Figure 12 and Figure 22 The angle between the axis of the second valve 30 and the length direction of the plate heat exchanger 200 is α2, where 0°≤α2≤45°. For example, the axis of the second valve 30 can be the axis of the valve core of the second valve 30, and the axis of the second valve 30 is L2. The value of α2 can be 0°, 5°, 10°, 30°, or 45°, etc. By ensuring that the angle α2 between the axis of the second valve 30 and the length direction of the plate heat exchanger 200 satisfies 0°≤α2≤45°, the overall structure of the throttle assembly 100 can be made more compact, reducing the space occupied by the throttle assembly 100.

[0271] For example, the angle α1 between the axis of the first valve 20 and the length direction of the plate heat exchanger 200 satisfies 0°≤α1≤45°, and the angle α2 between the axis of the second valve 30 and the length direction of the plate heat exchanger 200 satisfies 0°≤α2≤45°.

[0272] According to some embodiments of this utility model, refer to Figure 12 and Figure 22 0°≤α1≤30°. For example, the value of α1 can be 0°, 10°, 20° or 30°, etc. By ensuring that the angle α1 between the axis of the first valve 20 and the length direction of the plate heat exchanger 200 satisfies α1≤30°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced, avoiding the throttle assembly 100 occupying too much space and being difficult to install due to the excessive tilt angle of the axis of the first valve 20 relative to the length direction of the plate heat exchanger 200.

[0273] According to some embodiments of this utility model, refer to Figure 12 and Figure 22The angle α2 between the axis of the second valve 30 and the length direction of the plate heat exchanger 200 is 5°≤α2≤30°. For example, the value of α2 can be 5°, 10°, 20° or 30°. By ensuring that the angle α2 between the axis of the second valve 30 and the length direction of the plate heat exchanger 200 is 5°≤α2, the axis of the second valve 30 can be tilted relative to the length direction of the plate heat exchanger 200, making the internal structure of the throttle assembly 100 more compact. By ensuring that the angle α2 between the axis of the second valve 30 and the length direction of the plate heat exchanger 200 is α2<60°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced, avoiding the throttle assembly 100 from occupying too much space and being difficult to install due to the excessive tilt angle of the axis of the second valve 30 relative to the length direction of the plate heat exchanger 200.

[0274] According to some embodiments of this utility model, refer to Figure 12 and Figure 22 The absolute value of the difference between α1 and α2 is less than 30°. When the absolute value of the difference between α1 and α2 is too large, the angle between the axis of the first valve 20 and the axis of the second valve 30 is too large. This will cause the maximum length of the first valve 20 and the second valve 30 in the width direction of the plate heat exchanger 200 to be too large, increasing the space occupied by the throttle assembly 100 and making the installation of the throttle assembly 100 more difficult. By making the absolute value of the difference between α1 and α2 less than 30°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced, making the internal structure of the throttle assembly 100 more compact and avoiding the excessively large relative opening angle between the first valve 20 and the second valve 30, which would lead to an excessively large total length of the plate heat exchanger 200 in the width direction and make installation difficult.

[0275] According to some embodiments of this utility model, refer to Figure 12 and Figure 22 The angle between the axis of the first valve element 20 and the axis of the second valve element 30 is θ, where 0° < θ < 180°. For example, the value of θ can be 5°, 30°, 45°, 60°, 90°, 120°, 150°, 160°, 170°, etc. By ensuring that the angle θ between the axis of the first valve element 20 and the axis of the second valve element 30 satisfies 0° < θ < 180°, the axes of the first valve element 20 and the second valve element 30 are not parallel, making the internal structure of the throttle assembly 100 more compact.

[0276] According to some embodiments of this utility model, refer to Figure 12 and Figure 22The angle θ between the axis of the first valve 20 and the axis of the second valve 30 satisfies 5° < θ. For example, the value of θ can be 6°, 10°, 20°, 30°, 40°, 45°, 50°, 60°, 70°, 80°, etc. By ensuring that the angle θ between the axis of the first valve 20 and the axis of the second valve 30 is 5° < θ, the axes of the first valve 20 and the second valve 30 are not parallel, making the internal structure of the throttle assembly 100 more compact. When the absolute value of the difference between the angle θ between the axes of the first valve 20 and the second valve 30 is too large, the angle between the axes of the first valve 20 and the second valve 30 will be too large, resulting in an excessively large maximum length of the first valve 20 and the second valve 30 in the width direction of the plate heat exchanger 200. This increases the space occupied by the throttle assembly 100, making the installation of the throttle assembly 100 more difficult. By ensuring that the angle θ between the axis of the first valve 20 and the axis of the second valve 30 satisfies θ < 90°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced, making the internal structure of the throttle assembly 100 more compact and avoiding excessive relative opening angle between the first valve 20 and the second valve 30, which would lead to an excessively large total length in the width direction of the plate heat exchanger 200 and installation difficulties.

[0277] According to some embodiments of this utility model, refer to Figure 12 and Figure 22 The plate heat exchanger 200 includes multiple stacked heat exchange plates and a first plate 240 and a second plate 250 disposed on both sides of the heat exchange plates. The first plate 240 includes a planar portion 260, on which a first valve 20 and a second valve 30 are both disposed. The angle between the projections of the axis of the first valve 20 and the axis of the second valve 30 onto the plane containing the planar portion 260 is α, where 0°≤α≤60°. For example, the value of α can be 5°, 10°, 20°, 30°, 40°, 45°, 50°, 59°, etc. The angle α between the projections of the axes of the first valve 20 and the second valve 30 onto the plane of the planar portion 260 is too large. This excessive angle between the axes of the first valve 20 and the second valve 30 results in an excessively large maximum length of the first valve 20 and the second valve 30 in the width direction of the plate heat exchanger 200, increasing the space occupied by the throttle assembly 100 and making its installation difficult. By ensuring that the angle α between the projections of the axes of the first valve 20 and the second valve 30 onto the plane of the planar portion 260 satisfies 0°≤a≤60°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced. This makes the internal structure of the throttle assembly 100 more compact and avoids the excessively large relative opening angle between the first valve 20 and the second valve 30, which would otherwise lead to an excessively large total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 and make installation difficult.

[0278] According to some embodiments of this utility model, the plate heat exchanger 200 is arranged vertically or inclined. The first interface 2202 and the fourth interface 2302 are located above or obliquely above the second interface 2201 and the third interface 2301. The plate heat exchanger 200 includes multiple heat exchange plates stacked together and a first plate 240 and a second plate 250 disposed on both sides of the heat exchange plates. The first plate 240 includes a flat portion 260, and a valve island 10 is disposed on the flat portion 260. The angle between the axis of the first valve 20 and the plane containing the flat portion 260 is f, where -30°≤b≤30°. For example, the value of f can be -30°, -20°, -10°, 0°, 10°, 15°, 20°, 30°, etc. By arranging both the first valve element 20 and the second valve element 30 on the flat portion 260, and ensuring that the angle f between the axis of the first valve element 20 and the plane containing the flat portion 260 satisfies -30°≤f≤30°, the vibration wear of the valve core of the first valve element 20 can be reduced.

[0279] According to some embodiments of this utility model, the plate heat exchanger 200 is arranged vertically or inclined. The first interface 2202 and the fourth interface 2302 are located above or obliquely above the second interface 2201 and the third interface 2301. The plate heat exchanger 200 includes multiple heat exchange plates stacked together and a first plate 240 and a second plate 250 disposed on both sides of the heat exchange plates. The first plate 240 includes a flat portion 260, and the valve island 10 is disposed on the flat portion 260. The angle between the axis of the second valve 30 and the plane containing the flat portion 260 is g, where -30°≤g≤30°. For example, the value of g can be -30°, -20°, -10°, 0°, 10°, 15°, 20°, 30°, etc. By ensuring that the angle g between the axis of the second valve 30 and the plane containing the flat portion 260 satisfies -30°≤g≤30°, the vibration wear of the valve core of the second valve 30 can be reduced.

[0280] According to some embodiments of this utility model, refer to Figure 12 and Figure 22The line connecting the center of the first interface 2202 and the center of the second interface 2201 is the first connecting line 270, and the line connecting the center of the third interface 2301 and the center of the fourth interface 2302 is the second connecting line 280. The angle between the axis of the first valve 20 and the first connecting line 270 is β1, and the angle between the axis of the second valve 30 and the second connecting line 280 is β2, where 0°≤β1<45° and / or 0°≤β2≤45°. For example, the value of β1 can be 0°, 10°, 30°, or 45°, etc.; the value of β2 can be 0°, 10°, 30°, or 45°, etc. By ensuring that the angle β1 between the axis of the first valve member 20 and the first connecting line 270 satisfies 0°≤β1<45°, and / or that the angle β2 between the axis of the second valve member 30 and the second connecting line 280 satisfies 0°≤β2≤45°, the overall structure of the throttle assembly 100 can be made more compact, reducing the space occupied by the throttle assembly 100.

[0281] According to some embodiments of this utility model, refer to Figure 12 and Figure 22 0°≤β1≤30°. For example, the value of β1 can be 0°, 10°, 20° or 30°, etc. By ensuring that the included angle β1 between the axis of the first valve 20 and the first connecting line 270 satisfies β1<60°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced, avoiding the situation where the axis of the first valve 20 is tilted too much relative to the first connecting line 270, resulting in the throttle assembly 100 occupying too much space and causing installation difficulties.

[0282] According to some embodiments of this utility model, refer to Figure 12 and Figure 22 0°≤β2≤30°. For example, the value of β2 can be 0°, 10°, 20° or 30°, etc. By ensuring that the included angle β2 between the axis of the second valve 30 and the second connecting line 280 satisfies β2<60°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced, avoiding excessive tilt angle of the axis of the second valve 30 relative to the second connecting line 280, which would cause the throttle assembly 100 to occupy too much space and be difficult to install.

[0283] According to some embodiments of this utility model, refer to Figure 12 and Figure 22The absolute value of the difference between β1 and β2 is less than 30°. When the absolute value of the difference between β1 and β2 is too large, the angle between the axis of the first valve 20 and the axis of the second valve 30 is too large. This will cause the maximum length of the first valve 20 and the second valve 30 in the width direction of the plate heat exchanger 200 to be too large, increasing the space occupied by the throttle assembly 100 and making the installation of the throttle assembly 100 more difficult. By making the absolute value of the difference between β1 and β2 less than 30°, the total length of the throttle assembly 100 in the width direction of the plate heat exchanger 200 can be appropriately reduced, making the internal structure of the throttle assembly 100 more compact and avoiding the excessively large relative opening angle between the first valve 20 and the second valve 30, which would lead to an excessively large total length of the plate heat exchanger 200 in the width direction and make installation difficult.

[0284] The following describes an embodiment of the air conditioner 2000 of this utility model.

[0285] An air conditioner 2000 according to an embodiment of the present utility model includes an outdoor unit 10000.

[0286] According to an embodiment of the present invention, an air conditioner 2000 is provided with an outdoor unit 10000, and an installation space 411 is formed through a casing 3000. The heat exchange device 1000 includes a plate heat exchanger 200 and a throttling device assembly 100. The throttling device assembly 100 includes a valve island 10 and valves. A refrigerant flow channel is formed in the valve island 10. The plate heat exchanger 200 and the throttling device assembly 100 are integrated, which can reduce the length of the connecting pipe between the throttling device assembly 100 and the plate heat exchanger 200 and the welding points of the connecting pipe, reduce the risk of welding leakage, and reduce the overall volume or space occupied by the heat exchange device 1000. The heat exchange device 1000 is installed in the installation space, and the fixing assembly 500 fixes the heat exchange device 1000 in the installation space. At least one of the sides of the plate heat exchanger 200 away from the throttling device assembly 100 and the side of the plate heat exchanger 200 close to the throttling device assembly 100 is supported by the fixing assembly 500, making the overall structure of the heat exchange device 1000 and the fixing assembly 500 more compact and reasonable, reducing the volume of the heat exchange device 1000 and the fixing assembly 500, and facilitating the installation of the heat exchange device 1000 in the outdoor unit 10000 of the air conditioner and adjustment of the orientation of the valve core, so that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, 0°≤ω1≤45°. Meanwhile, by ensuring that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, where 0°≤ω1≤45°, the force distribution (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is more uniform. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and lifespan of the valve, reducing noise, and thus improving the reliability of the air conditioner 2000.

[0287] The following describes in detail, with reference to the accompanying drawings, the operation of an air conditioner 2000 according to a specific embodiment of the present invention in cooling mode and heating mode. It should be understood that the following description is merely illustrative and should not be construed as a limitation of the present invention.

[0288] like Figures 11-21 As shown, an air conditioner 2000 according to a specific embodiment of the present invention includes a compressor 2100, a four-way valve 2200, an outdoor heat exchanger 2300, a heat exchange device 1000, and an indoor heat exchange unit 2400. The indoor heat exchange unit 2400 includes multiple indoor heat exchangers 2410, multiple indoor valves 2420, and multiple indoor filters 2430, with each of the multiple indoor heat exchangers 2410, multiple indoor valves 2420, and multiple indoor filters 2430 corresponding one-to-one. The heat exchange device 1000 includes a throttling assembly 100, a plate heat exchanger 200, a first filter 300, and a second filter 400. The throttling assembly 100 includes a valve island 10, a first valve 20, and a second valve 30.

[0289] In cooling mode, the flow direction of the heat exchange medium is as follows: Figure 11 As indicated by the solid arrow, the compressor 2100 compresses the low-pressure heat exchange medium gas and then discharges the high-pressure heat exchange medium gas. This high-pressure heat exchange medium gas flows sequentially through the four-way valve 2200 and the outdoor heat exchanger 2300. The heat exchange medium then flows through the heat exchange device 1000. The heat exchange medium flowing out from the first heat exchange channel 220 flows into the indoor heat exchange unit 2400 and finally returns to the compressor 2100 side; the heat exchange medium flowing out from the second heat exchange channel 230 returns directly to the compressor 2100 side. This process is repeated cyclically, achieving the cooling function at the indoor heat exchange unit 2400.

[0290] The following is a detailed description of the flow of the heat exchange medium in the heat exchange device 1000 under cooling mode to illustrate its working principle. After the heat exchange medium flows into the heat exchange device 1000, it passes through the first filter element 300 at the first mounting base 13. By filtering the heat exchange medium through the first filter element 300, impurities entrained in the heat exchange medium in the heat exchange device 1000 can be reduced, which helps to ensure the normal working performance of the heat exchange device 1000.

[0291] Then, the heat exchange medium flows through the first flow path 101 of the valve island 10 and through the first valve 20. In the cooling mode, the first valve 20 is fully open (at its maximum opening), so the heat exchange medium is not throttled or depressurized in the first valve 20. Subsequently, part of the heat exchange medium flowing through the first valve 20 flows through the second flow path 102 and then directly into the first heat exchange channel 220 from the second interface 2201; the other part flows through the third flow path 103 and through the second valve 30, and then flows into the second heat exchange channel 230 through the third interface 2301. Here, the heat exchange medium in the first flow path 101 and the second flow path 102 is referred to as the main flow heat exchange medium, and the heat exchange medium in the first flow path 101 and the third flow path 103 is referred to as the auxiliary flow heat exchange medium.

[0292] Since the main heat exchange medium and the auxiliary heat exchange medium have already undergone impurity filtration in the first filter element 300, the operating performance of the first valve element 20 and the second valve element 30 is not easily affected by impurities. At this time, the opening of the second valve element 30 is small, thus throttling and depressurizing the auxiliary heat exchange medium, thereby reducing its pressure to below the saturation pressure corresponding to the current temperature of the auxiliary heat exchange medium. Consequently, the auxiliary heat exchange medium completely vaporizes, its temperature decreases, and then it flows into the second heat exchange channel 230 of the plate heat exchanger 200 through the third port 2301. The lower-temperature auxiliary heat exchange medium gas and the higher-temperature main heat exchange medium liquid exchange heat within the plate heat exchanger 200, causing the main heat exchange medium to cool down, and the auxiliary heat exchange medium is used to cool the main heat exchange medium. Subsequently, the main heat exchange medium flows out of the plate heat exchanger 200 from the first port 2202, and the auxiliary heat exchange medium flows out of the plate heat exchanger 200 from the fourth port 2302. The auxiliary heat exchange medium then flows back to the compressor 2100 inlet to enter the next cycle. The main heat exchange medium flows into the indoor heat exchange unit 2400, and after being filtered by the indoor filter 2430 and throttled by the indoor valve 2420, it flows into the indoor heat exchanger 2410 for heat exchange. After completing the heat exchange, the main heat exchange medium returns to the compressor 2100 inlet via the four-way valve 2200.

[0293] In heating mode, the flow direction of the heat exchange medium is as follows: Figure 11 As indicated by the dashed arrow, compressor 2100 compresses the low-pressure heat exchange medium gas and then discharges the high-pressure heat exchange medium gas. This high-pressure gas flows through four-way valve 2200 and into indoor heat exchange unit 2400. After heat exchange is completed in indoor heat exchanger 2410, it flows through fully open indoor valve 2420 and into heat exchange device 1000. The heat exchange medium flowing out of the first heat exchange channel 220 flows into outdoor heat exchanger 2300 and finally returns to compressor 2100; the heat exchange medium flowing out of the second heat exchange channel 230 returns directly to compressor 2100. This process is repeated cyclically, achieving heating function at indoor heat exchange unit 2400.

[0294] The following is a detailed description of the flow of the heat exchange medium in the heat exchange device 1000 under heating mode to illustrate its working principle. After the heat exchange medium flows into the heat exchange device 1000, it passes through the second filter element 400 at the second mounting base 210. By filtering the heat exchange medium through the second filter element 400, impurities entrained in the heat exchange medium in the heat exchange device 1000 can be reduced, which helps to ensure the normal working performance of the heat exchange device 1000.

[0295] Then, the heat exchange medium flows into the first heat exchange channel 220 of the plate heat exchanger 200 through the first interface 2202, and then flows from the second interface 2201 to the second flow path 102. A portion of the heat exchange medium in the second flow path 102 flows directly to the first flow path 101 and passes through the first valve 20, while another portion flows to the third flow path 103 and passes through the second valve 30 before flowing into the second heat exchange channel 230 through the third interface 2301. Here, the heat exchange medium in the first flow path 101 and the second flow path 102 is referred to as the main flow heat exchange medium, and the heat exchange medium in the first flow path 101 and the third flow path 103 is referred to as the auxiliary flow heat exchange medium.

[0296] Since the heat exchange medium has been filtered for impurities in the second filter element 400 before entering the plate heat exchanger 200, the operating performance of the first valve 20 and the second valve 30 is not easily affected by impurities. At this time, the opening of the first valve 20 is small, throttling and depressurizing the main heat exchange medium. For the auxiliary heat exchange medium, after being throttled and depressurized in the second valve 30, it flows into the second heat exchange channel 230 through the third port 2301, where it exchanges heat with the main heat exchange medium in the plate heat exchanger 200, using the main heat exchange medium to raise the temperature of the auxiliary heat exchange medium. Subsequently, the heat exchange medium in the second heat exchange channel 230 flows out of the plate heat exchanger 200 through the fourth port 2302, and finally returns to the compressor 2100 side.

[0297] Therefore, in cooling mode, the heat exchange device 1000 can reduce the temperature and pressure of the heat exchange medium entering the indoor heat exchange unit 2400, which helps to improve the cooling performance of the indoor heat exchange unit 2400. In heating mode, the heat exchange device 1000 can increase the temperature and pressure of the heat exchange medium entering the compressor 2100, which helps to increase the suction volume of the compressor 2100. In cooling mode, the heat exchange medium is filtered by the first filter 300 before flowing through the plate heat exchanger 200, the first valve 20 and the second valve 30; in heating mode, the heat exchange medium is filtered by the second filter 400 before flowing through the plate heat exchanger 200, the first valve 20 and the second valve 30, which can reduce impurities in the heat exchange medium in the heat exchange device 1000, thereby reducing the risk of blockage of the first valve 20 and the second valve 30 and improving the working efficiency of the air conditioner 2000.

[0298] The valve island 10, the first valve 20, and the second valve 30 are integrated into a single unit to form a throttle assembly 100. The first filter element 300, the second filter element 400, the plate heat exchanger 200, and the throttle assembly 100 are integrated into a single unit to form a heat exchange device 1000. This design makes the heat exchange device 1000 compact, occupies less space, and has a high degree of integration.

[0299] The following describes a heat pump device according to an embodiment of the present invention.

[0300] The heat pump equipment according to an embodiment of the present utility model includes an outdoor air conditioning unit 10000.

[0301] According to the heat pump equipment of this utility model embodiment, an outdoor air conditioning unit 10000 is provided, and an installation space 411 is formed through the casing 3000. The heat exchange device 1000 includes a plate heat exchanger 200 and a throttling device assembly 100. The throttling device assembly 100 includes a valve island 10 and valves. A refrigerant flow channel is formed in the valve island 10. The plate heat exchanger 200 and the throttling device assembly 100 are integrated, which can reduce the length of the connecting pipe between the throttling device assembly 100 and the plate heat exchanger 200 and the welding points of the connecting pipe, reduce the risk of welding leakage, and reduce the overall volume or space occupied by the heat exchange device 1000. The heat exchange device 1000 is installed in the installation space, and the fixing assembly 500 fixes the heat exchange device 1000 in the installation space. At least one of the sides of the plate heat exchanger 200 away from the throttling device assembly 100 and the side of the plate heat exchanger 200 close to the throttling device assembly 100 is supported by the fixing assembly 500, making the overall structure of the heat exchange device 1000 and the fixing assembly 500 more compact and reasonable, reducing the volume of the heat exchange device 1000 and the fixing assembly 500, and facilitating the installation of the heat exchange device 1000 in the outdoor unit 10000 of the air conditioner and adjustment of the orientation of the valve core, so that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, 0°≤ω1≤45°. Meanwhile, by ensuring that the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, where 0°≤ω1≤45°, the force (the supporting force against the gravity of the valve core) on the same or adjacent circumferential surfaces of the valve core is more evenly distributed. During operation, the wear on the same or adjacent circumferential surfaces of the valve core is more uniform, avoiding excessive local wear of the valve core, improving the operational reliability and lifespan of the valve, reducing noise, and thus improving the reliability of the heat pump equipment.

[0302] Other configurations and operations of the throttle assembly 100, heat exchange device 1000, heat pump equipment, and air conditioner 2000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0303] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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.

[0304] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An outdoor unit for an air conditioner, characterized in that, include: A housing having an installation space; A heat exchange device, comprising a plate heat exchanger and a throttling device assembly, the throttling device assembly comprising a valve island and valves, wherein a refrigerant flow channel is formed within the valve island, the valve island is fixed to the plate heat exchanger and disposed on one side of the plate heat exchanger in the thickness direction, the refrigerant flow channel is connected to the heat exchange flow channel of the plate heat exchanger, the valves are disposed on the valve island and are connected to the refrigerant flow channel, and the heat exchange device is installed within the installation space; A fixing assembly is provided to fix the heat exchange device within the installation space. At least one of the plate heat exchanger's side away from the throttle assembly and the plate heat exchanger's side closer to the throttle assembly is supported by the fixing assembly. The angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity is ω1, where 0°≤ω1≤45°.

2. The outdoor unit of the air conditioner according to claim 1, characterized in that, The housing includes an outer shell, the mounting space is formed inside the outer shell, and the fixing component includes the outer shell or is fixed to the outer shell; or, The housing includes an outer shell and a partition plate disposed within the outer shell. The installation space is formed within the outer shell. The partition plate divides the installation space into a fan chamber and a compressor chamber. The heat exchange device is installed within the compressor chamber. The fixing assembly includes the partition plate or is fixed to the partition plate.

3. The outdoor unit of the air conditioner according to claim 2, characterized in that, The two ends of the fixing component are respectively fixedly connected to the outer shell and the middle partition.

4. The outdoor unit of the air conditioner according to claim 2, characterized in that, The housing includes a chassis, and the outdoor unit of the air conditioner also includes a support assembly. The support assembly is fixed on the chassis, and the fixing assembly is fixedly connected to the housing through the support assembly.

5. The outdoor unit of the air conditioner according to claim 4, characterized in that, The outdoor unit of the air conditioner also includes at least one of a bracket, a gas-liquid separator, a liquid storage tank, a high-pressure tank, and an expansion tank, a compressor, and an outdoor fan. The compressor is installed in the compressor cavity, the outdoor fan is installed in the fan cavity, and the support assembly is installed in the compressor cavity. The support assembly includes at least one of the bracket, the gas-liquid separator, the liquid storage tank, the high-pressure tank, and the expansion tank.

6. The outdoor unit of the air conditioner according to any one of claims 1-5, characterized in that, The fixing assembly includes a fixing bracket and a fixing member. The fixing bracket is located on the side of the plate heat exchanger away from the throttling device assembly. The fixing member is connected to the fixing bracket and defines a fixing space. The plate heat exchanger passes through the fixing space. The side of the plate heat exchanger away from the throttling device assembly abuts against the fixing bracket to be supported by the fixing bracket and / or the side of the plate heat exchanger near the throttling device assembly abuts against the fixing member to be supported by the fixing member.

7. The outdoor unit of the air conditioner according to claim 6, characterized in that, The fastener includes: A first covering portion is located on the side of the plate heat exchanger away from the fixed support, and the first covering portion extends along the width direction of the plate heat exchanger. The fixing part includes two parts, which are respectively connected to both ends of the first covering part along its length. The fixing part is connected to the fixing bracket, and the first covering part, the two fixing parts and the fixing bracket form the fixing space.

8. The outdoor unit of the air conditioner according to claim 7, characterized in that, Along the thickness direction of the plate heat exchanger, the distance between the first covering part and the plate heat exchanger is T, and satisfies 0≤T≤2mm; Alternatively, the two ends of the first covering portion in the length direction may extend beyond the two ends of the plate heat exchanger in the width direction.

9. The outdoor unit of the air conditioner according to claim 7, characterized in that, The fixing part includes: The second cover extends along the thickness direction of the plate heat exchanger and one end is connected to the first cover. The connecting part has one end connected to the end of the second covering part away from the first covering part, and the other ends of the two connecting parts extend in a direction away from each other. The connecting part is connected to the fixed bracket.

10. The outdoor unit of the air conditioner according to claim 6, characterized in that, The two ends of the fixing member along the width direction of the plate heat exchanger are connected to the fixing bracket by fasteners.

11. The outdoor unit of the air conditioner according to claim 6, characterized in that, The fixing member has hooks at both ends along the width direction of the plate heat exchanger, and the fixing bracket has hanging grooves that cooperate with the hooks; And / or, the fixed bracket includes a first positioning structure, on which the plate heat exchanger is positioned and mounted on the side opposite to the valve island, and the first positioning structure includes a positioning groove; And / or, the fixed bracket includes a support plate that is supported below the plate heat exchanger.

12. The outdoor unit of the air conditioner according to claim 6, characterized in that, The fastener is a single piece; And / or, the plate heat exchanger includes a plurality of heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates, the first plate including a planar portion, the valve island disposed on the planar portion, and the fixing member fixedly connected to the second plate.

13. The outdoor unit of the air conditioner according to claim 6, characterized in that, The plate heat exchanger has a first heat exchange channel and a second heat exchange channel that are separated from each other but exchange heat with each other. On the side of the plate heat exchanger away from the fixed support, there are a first interface, a second interface, a third interface, and a fourth interface. The first interface and the second interface communicate with the first heat exchange channel, and the third interface and the fourth interface communicate with the second heat exchange channel. The first interface and the fourth interface are located at the same end in the length direction of the plate heat exchanger and are arranged along the width direction of the plate heat exchanger. The second interface and the third interface are located at the same end in the length direction of the plate heat exchanger and are arranged along the width direction of the plate heat exchanger. At least a portion of the fixing member is disposed between the first interface and the second interface and between the third interface and the fourth interface.

14. The outdoor unit of the air conditioner according to claim 13, characterized in that, The valve island is disposed at the second interface and the third interface, both of which are connected to the refrigerant flow channel. One end of the valve is disposed on the valve island, and the other end of the valve extends toward the fourth interface. The valve is located between the two ends of the plate heat exchanger along its length.

15. The outdoor unit of the air conditioner according to claim 14, characterized in that, A mounting gap is formed between the surface of the plate heat exchanger near the valve island and the valve member and / or the valve island, and at least a portion of the fixing member is received within the mounting gap; or, An installation gap is formed between the surface of the plate heat exchanger near the valve island and the valve and / or the valve island, and the maximum width of the fixing member along the length direction of the plate heat exchanger is greater than the distance between the end of the valve near the fourth interface and the fourth interface.

16. The outdoor unit of the air conditioner according to claim 14, characterized in that, The plate heat exchanger is arranged vertically or at an angle, with the first interface and the fourth interface located above or diagonally above the second interface and the third interface, and the angle between the length direction of the plate heat exchanger and the direction of gravity being ω2, 0°≤ω2≤30°; and / or, the angle between the axial direction of the valve and / or the movement direction of the valve core and the direction of gravity being ω1, 0°≤ω1≤30°.

17. The outdoor unit of the air conditioner according to claim 16, characterized in that, The valve island has a first flow channel port, a second flow channel port, and a third flow channel port communicating with the refrigerant flow channel. The second flow channel port is connected to the second interface, and the third flow channel port is connected to the third interface. The outdoor unit of the air conditioner further includes: A first connecting pipe, one end of which is connected to the first interface; The second connecting pipe, one end of which is connected to the fourth interface; The third connecting pipe has one end connected to the first flow channel opening. The end of the first connecting pipe away from the first interface, the end of the second connecting pipe away from the fourth interface, and the end of the third connecting pipe away from the first flow channel opening all extend in the same direction.

18. The outdoor unit of the air conditioner according to claim 17, characterized in that, The outdoor unit of the air conditioner also includes a compressor, and the end of the first connecting pipe opposite to the first interface, the end of the second connecting pipe opposite to the fourth interface, and the end of the third connecting pipe opposite to the first flow channel opening extend toward the side where the compressor is located.

19. The outdoor unit of the air conditioner according to claim 18, characterized in that, At least one of the first connecting pipe and the second connecting pipe includes: The first segment extends along the thickness direction of the plate heat exchanger, and one end of the first segment is connected to the first interface or the fourth interface. The second segment has one end connected to the other end of the first segment. Along the thickness direction of the plate heat exchanger, the second segment is located on the side of the throttle assembly away from the plate heat exchanger and is spaced apart from the throttle assembly.

20. The outdoor unit of the air conditioner according to claim 19, characterized in that, The second segment extends along a straight line or a curve.

21. The outdoor unit of the air conditioner according to claim 19, characterized in that, At least one of the first connecting pipe and the second connecting pipe further includes: The third segment extends along the thickness direction of the plate heat exchanger. One end of the third segment is connected to the end of the second segment away from the first segment, and the other end extends toward the fixed support. The fourth segment extends along the length of the plate heat exchanger, and one end of the fourth segment is connected to the end of the third segment that is away from the second segment.

22. The outdoor unit of the air conditioner according to claim 16, characterized in that, The valve island has a first flow channel port, a second flow channel port, and a third flow channel port communicating with the refrigerant flow channel. The second flow channel port is connected to the second interface, and the third flow channel port is connected to the third interface. The valve island also has a branch valve cavity. The refrigerant flow channel includes a main flow path and a branch flow path. The two ends of the main flow path are respectively connected to the first flow channel port and the second flow channel port. The two ends of the branch flow path are respectively connected to the main flow path and the branch valve cavity. The branch valve cavity is connected to the third flow channel port. The valve component includes a branch valve component, which is configured to be connected to and communicate with the branch valve cavity.

23. The outdoor unit of the air conditioner according to claim 22, characterized in that, At least one of the main flow path and the branch flow path forms a capillary flow path.

24. The outdoor unit of the air conditioner according to claim 23, characterized in that, The equivalent inner diameter of the capillary flow path is less than or equal to 5 mm; And / or, the length of the capillary flow path is greater than or equal to 5 mm.

25. The outdoor unit of the air conditioner according to claim 22, characterized in that, The valve island has a first valve chamber and a second valve chamber. The refrigerant flow channel includes a first flow path, a second flow path, and a third flow path. The two ends of the first flow path are respectively connected to the first flow channel opening and the first valve chamber. The two ends of the second flow path are respectively connected to the second flow channel opening and the first valve chamber. The main flow path includes the first flow path, the first valve chamber, and the second flow path. The two ends of the third flow path are respectively connected to the first valve chamber and the second valve chamber. The second valve chamber is connected to the third flow channel opening. The branch flow path includes the third flow path. The branch valve chamber is the second valve chamber. The valve component includes: A first valve element, configured to be connected to and communicate with the first valve chamber; The second valve is configured to be connected and communicate with the second valve chamber, and the branch valve is the second valve.

26. The outdoor unit of the air conditioner according to claim 25, characterized in that, The angle between the axial direction of the first valve and / or the movement direction of the valve core of the first valve and / or the axial direction of the first valve cavity and the direction of gravity is ω11, 0°≤ω11≤30°; And / or, the angle between the axial direction of the second valve and / or the movement direction of the valve core of the second valve and / or the axial direction of the second valve cavity and the direction of gravity is ω11, 0°≤ω11≤30°; And / or, the angle between the axial direction of the branch valve and / or the movement direction of the valve core of the branch valve and / or the axial direction of the branch valve cavity and the direction of gravity is ω11, 0°≤ω11≤30°; And / or, the angle between the axis of the first valve and the axis of the second valve is α, where 0°≤α≤60°; And / or, the angle between the axis of the first valve chamber and the axis of the second valve chamber is b, where 0°≤b≤60°.

27. The outdoor unit of the air conditioner according to claim 25, characterized in that, The valve island further defines a fourth flow path for the flow of heat exchange medium. The two ends of the fourth flow path are respectively connected to the second valve cavity and the third flow channel opening. The first flow path includes a first straight section that communicates with the first valve cavity and forms a straight segment; the second flow path includes a second straight section that communicates with the second flow channel opening and forms a straight segment; the third flow path includes a third straight section that communicates with the second valve cavity and forms a straight segment; and the fourth flow path includes a fourth straight section that communicates with the third flow channel opening and forms a straight segment. The second straight section and the fourth straight section are parallel; And / or, the angle between the extension direction of the first straight portion and the axial direction of the first valve is c, where 60°≤c≤120°; And / or, the angle between the extension direction of the third straight portion and the axial direction of the second valve is d, 60°≤d≤120°.

28. The outdoor unit of the air conditioner according to claim 25, characterized in that, The valve island includes a first mounting portion, the first mounting portion forming the first valve cavity, and at least a portion of the first valve element being mounted within the first valve cavity; and / or, The valve island includes a second mounting portion, the second mounting portion forming a second valve cavity, and at least a portion of the second valve element is mounted in the second valve cavity.

29. The outdoor unit of the air conditioner according to claim 28, characterized in that, The angle between the axis of the first mounting part and the axis of the second mounting part is e, where 0°≤e≤60°.

30. The outdoor unit of the air conditioner according to claim 28, characterized in that, The first valve is an electronic expansion valve or a solenoid valve, and the first valve includes a first coil portion, which is disposed above or diagonally above the first mounting portion; and / or The second valve is an electronic expansion valve or a solenoid valve. The second valve includes a second coil portion, which is disposed above or diagonally above the second mounting portion.

31. The outdoor unit of the air conditioner according to claim 30, characterized in that, The first valve also includes a first support member, one end of which is connected to the first coil portion, and the other end of which is connected to the valve island via a first fastener, the first fastener facing the side of the valve island away from the plate heat exchanger. And / or, the second valve further includes a second support member, one end of which is connected to the second coil portion, and the other end of which is connected to the valve island via a second fastener, the second fastener facing the side of the valve island away from the plate heat exchanger.

32. The outdoor unit of the air conditioner according to claim 31, characterized in that, The housing includes an outer shell, the outer shell including a front shell and a side shell surrounding the compressor cavity, the first fastener facing the front shell or the side shell; And / or, the second fastener is oriented toward the front shell or side shell.

33. The outdoor unit of the air conditioner according to claim 30, characterized in that, The first mounting part has a first opening on the side facing the first interface that communicates with the first valve cavity, and the first valve core is installed into the first valve cavity through the first opening; And / or, the second mounting part has a second opening on the side facing the fourth interface that communicates with the second valve cavity, and the second valve core is installed into the second valve cavity through the second opening.

34. The outdoor unit of the air conditioner according to claim 33, characterized in that, The first opening and the second opening face the same side, and the first interface and the fourth interface are located between the axis of the first opening and the axis of the second opening.

35. The outdoor unit of the air conditioner according to claim 25, characterized in that, The angle between the axis of the first valve and the length direction of the plate heat exchanger is α1, and the angle between the axis of the second valve and the length direction of the plate heat exchanger is α2, where 0°≤α1<45° and / or 0°≤α2≤45°.

36. The outdoor unit of the air conditioner according to claim 35, characterized in that, 0°≤α1≤30°； And / or, 5°≤α2≤30°; And / or, the absolute value of the difference between α1 and α2 is less than or equal to 30°.

37. The outdoor unit of the air conditioner according to claim 25, characterized in that, The plate heat exchanger is arranged vertically or at an angle. The first interface and the fourth interface are located above or diagonally above the second interface and the third interface. The plate heat exchanger includes multiple heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates. The first plate includes a planar portion. The valve island is disposed on the planar portion. The angle between the axis of the first valve and the plane containing the planar portion is f, -30°≤f≤30°; and / or, the angle between the axis of the second valve and the plane containing the planar portion is g, -30°≤g≤30°.

38. The outdoor unit of the air conditioner according to claim 25, characterized in that, The line connecting the center of the first interface and the center of the second interface is the first line, the line connecting the center of the third interface and the center of the fourth interface is the second line, the angle between the axis of the first valve and the first line is β1, the angle between the axis of the second valve and the second line is β2, 0°≤β1<45° and / or 0°≤β2≤45°.

39. The outdoor unit of the air conditioner according to claim 38, characterized in that, 0°≤β1≤30°； And / or, 0°≤β2≤30°; And / or, the absolute value of the difference between β1 and β2 is less than or equal to 30°.

40. The outdoor unit of an air conditioner according to any one of claims 1-5, characterized in that, The plate heat exchanger includes multiple heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates. The valve island is disposed on the first plate, and the second plate is provided with a mounting part. The mounting part is fixedly connected to the fixing component or is an integral structure.

41. The outdoor unit of the air conditioner according to claim 40, characterized in that, The second plate includes a protrusion that extends out of the heat exchange plate along the length or width direction of the plate heat exchanger. The protrusion is provided with the mounting part, and the mounting part is fixedly connected to the fixing component by fasteners.

42. The outdoor unit of the air conditioner according to claim 40, characterized in that, The first plate is set vertically or inclined. The first and fourth ports of the plate heat exchanger are located above or diagonally above the second and third ports. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate is located is A1, where 0°≤A1≤30°. Alternatively, the second plate is horizontally positioned, the valve island is located above the second plate, and the angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate is located is A2, where 60°≤A2≤90°.

43. The outdoor unit of an air conditioner according to any one of claims 1-5, characterized in that, The plate heat exchanger includes multiple heat exchange plates stacked together and a first plate and a second plate disposed on both sides of the heat exchange plates. The valve island is disposed on the first plate, and the first plate is provided with a mounting part. The mounting part is fixedly connected to the fixing component or is an integral structure.

44. The outdoor unit of the air conditioner according to claim 43, characterized in that, The first plate is vertically or inclined. The first and fourth ports of the plate heat exchanger are located above or diagonally above the second and third ports. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the first plate is located is B1, where 0°≤B1≤30°; or, The second plate is horizontally positioned, and the valve island is located above the second plate. The angle between the axial direction of the valve and / or the movement direction of the valve core and the plane where the second plate is located is B2, where 60°≤B2≤90°.

45. The outdoor unit of an air conditioner according to any one of claims 1-5, characterized in that, The heat exchange device also includes valve island fasteners that detachably mount the valve island to the plate heat exchanger.

46. ​​The outdoor unit of the air conditioner according to claim 45, characterized in that, The disassembly and assembly direction of the valve island fastener is the same as that of the fixing component. And / or, the disassembly and assembly direction of the heat exchange device is consistent with the disassembly and assembly direction of the valve island.

47. An air conditioner, characterized in that, Includes an outdoor air conditioning unit according to any one of claims 1-46.

48. A heat pump device, characterized in that, Includes an outdoor air conditioning unit according to any one of claims 1-46.

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