Four-way valve assembly, compressor assembly, and air conditioner

Abstract

The utility model discloses a four -way valve subassembly, compressor subassembly and air conditioner, four -way valve subassembly, include: main valve body, pilot valve body, first capillary, on the projection plane perpendicular to main valve body axis, along the axis direction of first connecting pipe, the point A of pilot valve body on the side of main valve body axis close to first connecting pipe and with main valve body axis distance farthest is point A, and the straight line of passing through point A and with the axis of first connecting pipe vertical is straight line L, and the intersection of straight line L and the axis of first capillary is point P1, and the intersection of the axis of first capillary and the outer peripheral wall of first connecting pipe first joint side is point P2, and the tangent of the axis of first capillary at point P1 is tangent L1, and the tangent of the axis of first capillary at point P2 is tangent L2, and the angle between tangent L1 and tangent L2 is theta, and satisfy 65 DEG <= theta <= 115 DEG. The utility model discloses four -way valve subassembly, can reduce the stress of first capillary and pilot valve body junction, avoid the first capillary and pilot valve body junction weld mouth and take place the damage.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and in particular to a four-way valve assembly, a compressor assembly, and an air conditioner. Background Technology

[0002] In related technologies, the four-way valve assembly of an air conditioner is mainly used to change the flow direction of the refrigerant, thereby switching between cooling and heating modes. The main valve body of the four-way valve assembly is typically connected to the compressor's discharge port, compressor return port, indoor heat exchanger, and outdoor heat exchanger via multiple connecting pipes. The four-way valve includes a main valve body and a pilot valve body, which are connected by a capillary tube. Part of the capillary tube is connected to the connecting pipe of the main valve body. When the connecting pipe of the capillary tube is connected to the compressor's return port, the connection between the capillary tube and the pilot valve body is easily damaged due to the vibration of the compressor during operation. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a four-way valve assembly, which can reduce the stress at the connection between the first capillary tube and the pilot valve body, thus preventing damage to the weld at the connection point.

[0004] This utility model also proposes a compressor assembly, which includes the above-mentioned four-way valve assembly.

[0005] This utility model also proposes an air conditioner, which includes the compressor assembly described above.

[0006] A four-way valve assembly according to an embodiment of the present invention includes: a main valve body, on which a connecting pipe is connected, the connecting pipe including a first connecting pipe adapted to connect to the return port of a compressor, the first connecting pipe having a first connector; a pilot valve body, the pilot valve body being located on one side of the main valve body and arranged parallel to the main valve body; a capillary tube, the capillary tube including a first capillary tube, one end of the first capillary tube being connected to the first connector, and the other end being connected to the peripheral wall of the pilot valve body; on a projection plane perpendicular to the axis of the main valve body, along the axial direction of the first connecting pipe, the pilot valve body located on the... Point A is the point on the side of the main valve body axis closest to the first connecting pipe and furthest from the main valve body axis. The straight line passing through point A and perpendicular to the axis of the first connecting pipe is line L. The intersection of line L and the axis of the first capillary is point P1. The intersection of the axis of the first capillary and the outer peripheral wall of the first connecting pipe on the side where the first connector is located is point P2. The tangent to the axis of the first capillary at point P1 is tangent L1. The tangent to the axis of the first capillary at point P2 is tangent L2. The angle between tangent L1 and tangent L2 is θ, and satisfies 65°≤θ≤115°.

[0007] According to the four-way valve assembly of this utility model embodiment, on the projection plane perpendicular to the axis of the main valve body, along the axial direction of the first connecting pipe, the point on the pilot valve body located on the side of the main valve body axis closest to the first connecting pipe and farthest from the main valve body axis is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe is line L. The intersection of line L and the axis M of the first capillary is point P1. The intersection of the axis of the first capillary and the outer peripheral wall of the first connecting pipe on the side with the first connector is point P2. The tangent to the axis M of the first capillary at point P1 is... Tangent L1 and tangent L2 are the tangents to the axis M of the first capillary tube at point P2. By ensuring that the angle θ between tangents L1 and L2 satisfies 65°≤θ≤115°, the bending shape of the first capillary tube can be defined. When the first connecting pipe is affected by the vibration of the compressor, the deformation of the bending part of the first capillary tube can reduce the vibration transmitted to the connection between the first capillary tube and the pilot valve body, reduce the force at the connection between the first capillary tube and the pilot valve body, and prevent the weld joint at the connection between the first capillary tube and the pilot valve body from being damaged.

[0008] According to some embodiments of the present invention, the first capillary tube includes: a first straight pipe section, one end of which is connected to the first connector; a second straight pipe section, which forms an angle with the first straight pipe section, one end of which is connected to the end of the first straight pipe section away from the first connector via a first arc-shaped section; and a third straight pipe section, one end of which forms an angle with the second straight pipe section, one end of which is connected to the end of the second straight pipe section away from the first straight pipe section via a second arc-shaped section, and the other end of which is connected to the pilot valve body. The first straight pipe section and the third straight pipe section are located on opposite sides of the second straight pipe section.

[0009] According to some embodiments of the present invention, the connecting pipe further includes a second connecting pipe adapted to connect to the exhaust port of the compressor. The second connecting pipe has a second connector. The capillary tube further includes a second capillary tube, one end of which is connected to the second connector, and the other end of which is connected to one axial end of the pilot valve body. The intersection of the axis of the second capillary tube and the outer peripheral wall of the second connecting pipe is point B1. The intersection of the axis of the second capillary tube and the axial end face of the pilot valve body connected to the second capillary tube is point B2. The straight-line distance between point B1 and point B2 is L3. The length of the second capillary tube between point B1 and point B2 is L4, and satisfies: L4 / L3≥1.1.

[0010] In some embodiments of this utility model, the second capillary tube includes: a fourth straight tube section, one end of which is connected to the second connector; a fifth straight tube section, which forms an angle with the fourth straight tube section, one end of which is connected to the end of the fourth straight tube section away from the second connector via a third arc-shaped section; and a sixth straight tube section, one end of which forms an angle with the fifth straight tube section, one end of which is connected to the end of the fifth straight tube section away from the fourth straight tube section via a fourth arc-shaped section, and the other end of which is connected to the pilot valve body, wherein the fourth straight tube section and the sixth straight tube section are respectively located on the same side of the fifth straight tube section.

[0011] In some embodiments of this utility model, the second connecting pipe and the first connecting pipe are connected to opposite sides of the main valve body in the radial direction.

[0012] According to some embodiments of this utility model, the capillary tube further includes a third capillary tube and a fourth capillary tube. One end of each of the third and fourth capillary tubes is connected to the side of the main valve body facing the first connecting pipe, and the other end is connected to the peripheral wall of the pilot valve body. In the axial direction of the first connecting pipe, the maximum distance between the first connector and the axis of the main valve body is H1. The maximum distance between the portion of the third capillary tube located on the axis of the main valve body near the first connecting pipe and the axis of the main valve body is H2. The maximum distance between the portion of the fourth capillary tube located on the axis of the main valve body near the first connecting pipe and the axis of the main valve body is H3, satisfying: H1 > H2, H1 > H3.

[0013] In some embodiments of this utility model, H2 and H3 satisfy: H2 = H3.

[0014] In some embodiments of this utility model, the third capillary and the fourth capillary are arranged symmetrically.

[0015] In some embodiments of this utility model, the connecting pipe further includes a third connecting pipe and a fourth connecting pipe. The third connecting pipe, the fourth connecting pipe and the first connecting pipe are connected to the same side in the radial direction of the main valve body. In the axial direction of the main valve body, the third connecting pipe and the fourth connecting pipe are located on opposite sides of the first connecting pipe.

[0016] According to some embodiments of the present invention, it further includes: a bracket, at least a portion of which is located between the main valve body and the pilot valve body, for connecting the main valve body and the pilot valve body.

[0017] According to some embodiments of this utility model, the main valve body, the pilot valve body, and the connecting pipe are made of stainless steel, and the capillary tube is made of copper.

[0018] A compressor assembly according to an embodiment of the present invention includes: a compressor having an exhaust port and a return port; and the aforementioned four-way valve assembly, wherein the end of the first connecting pipe opposite to the main valve body is connected to the return port.

[0019] According to the compressor assembly of this utility model embodiment, by setting the above-mentioned four-way valve assembly, on the projection plane perpendicular to the axis of the main valve body, along the axis direction of the first connecting pipe, the point on the pilot valve body located on the side of the main valve body axis closest to the first connecting pipe and farthest from the main valve body axis is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe is line L. The intersection of line L and the axis M of the first capillary tube is point P1. The intersection of the axis of the first capillary tube and the outer peripheral wall of the side of the first connecting pipe where the first connector is located is point P2. The axis M of the first capillary tube is located at point P1. The tangent at P1 is tangent L1, and the tangent at point P2 to the axis M of the first capillary is tangent L2. By ensuring that the angle θ between tangents L1 and L2 satisfies 65°≤θ≤115°, the bending shape of the first capillary can be defined. When the first connecting pipe is affected by the vibration of the compressor, the deformation of the bending part of the first capillary can reduce the vibration transmitted to the connection between the first capillary and the pilot valve body, reduce the force at the connection between the first capillary and the pilot valve body, and prevent damage to the weld at the connection between the first capillary and the pilot valve body.

[0020] The air conditioner according to an embodiment of the present invention includes the compressor assembly described above.

[0021] According to the air conditioner of this utility model embodiment, by setting the above-mentioned compressor assembly, including the above-mentioned four-way valve assembly, on the projection plane perpendicular to the axis of the main valve body, along the axis direction of the first connecting pipe, the point on the pilot valve body located on the side of the main valve body axis closest to the first connecting pipe and farthest from the axis of the main valve body is point A; the straight line passing through point A and perpendicular to the axis of the first connecting pipe is line L; the intersection of line L and the axis M of the first capillary tube is point P1; the intersection of the axis of the first capillary tube 3 and the outer peripheral wall of the side of the first connecting pipe where the first connector is located is point P2; the first capillary tube... The tangent to axis M at point P1 is tangent L1, and the tangent to axis M of the first capillary at point P2 is tangent L2. By ensuring that the angle θ between tangents L1 and L2 satisfies 65°≤θ≤115°, the bending shape of the first capillary can be defined. When the first connecting pipe is affected by the vibration of the compressor, the deformation of the bending part of the first capillary can reduce the vibration transmitted to the connection between the first capillary and the pilot valve body, reduce the force at the connection between the first capillary and the pilot valve body, and prevent damage to the weld at the connection between the first capillary and the pilot valve body.

[0022] 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

[0023] 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:

[0024] Figure 1 This is a perspective view of a four-way valve assembly according to an embodiment of the present utility model;

[0025] Figure 2 This is a perspective view of the four-way valve assembly according to an embodiment of the present utility model, wherein the second connecting pipe is not shown;

[0026] Figure 3 This is a side view of a four-way valve assembly according to an embodiment of the present invention, wherein the second connecting pipe is not shown;

[0027] Figure 4 This is a projection view of the four-way valve assembly according to an embodiment of the present utility model, perpendicular to the axis of the main valve body, wherein the second connecting pipe, the third capillary tube and the fourth capillary tube are not shown.

[0028] Figure 5 This is a schematic diagram of points P1, P2 and the axis of the first capillary tube according to an embodiment of the present invention;

[0029] Figure 6 This is a front view of a four-way valve assembly according to an embodiment of the present invention, wherein the second connecting pipe is not shown;

[0030] Figure label:

[0031] 100. Four-way valve assembly;

[0032] 1. Main valve body; 11. First connecting pipe; 111. First connector; 112. First pipe body; 113. First flared section; 114. First pipe connector; 12. Second connecting pipe; 121. Second connector; 122. Second pipe body; 123. Second flared section; 124. Second pipe connector; 13. Third connecting pipe; 131. Third pipe body; 132. Third flared section; 133. Third pipe connector; 14. Fourth connecting pipe; 141. Fourth pipe body; 142. Fourth flared section; 143. Fourth pipe connector;

[0033] 2. Pilot valve body;

[0034] 3. First capillary tube; 31. First straight tube segment; 32. Second straight tube segment; 34. First arc-shaped segment;

[0035] 4. Second capillary tube; 41. Fourth straight tube section; 42. Fifth straight tube section; 43. Sixth straight tube section; 44. Third arc-shaped section; 45. Fourth arc-shaped section;

[0036] 6. Third capillary tube; 62. Eighth straight tube segment; 63. Ninth straight tube segment; 64. Tenth straight tube segment; 66. Sixth arc segment; 67. Seventh arc segment;

[0037] 7. Fourth capillary;

[0038] 8. Bracket; 81. First connecting part; 82. Second connecting part; 83. Support part; 84. Connecting part. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] The four-way valve assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0043] like Figures 1-3 As shown, the four-way valve assembly 100 according to an embodiment of the present invention includes a main valve body 1, a pilot valve body 2, and a capillary tube.

[0044] Specifically, the main valve body 1 is connected to a connecting pipe, namely a first connecting pipe 11, which is adapted to connect to the return port of the compressor. One end of the first connecting pipe 11 is connected to the peripheral wall of the main valve body 1, and the other end of the first connecting pipe 11 is adapted to connect to the return port of the compressor. The first connecting pipe 11 has a first connector 111, which can be disposed on the peripheral wall of the first connecting pipe 11. The first connector 111 has an annular structure and one end is connected to the outer peripheral wall of the first connecting pipe 11.

[0045] Furthermore, referring to Figure 6 The first connecting pipe 11 includes a first pipe body 112 and a first pipe connector 114. One end of the first pipe body 112 is connected to the main valve body 1, and one end of the first pipe connector 114 extends into the end of the first pipe body 112 that is away from the main valve body 1. Specifically, the end of the first pipe body 112 that is away from the main valve body 1 is provided with a first flared section 113. The outer diameter of the first flared section 113 is larger than the outer diameter of the rest of the pipe body, and the inner diameter of the first flared section 113 is larger than the inner diameter of the rest of the pipe body. One end of the first pipe connector 114 extends into the first flared section 113, which facilitates the insertion of the first pipe connector 114 into the first pipe body 112 and facilitates connection with other pipe structures through the first pipe connector 114.

[0046] Of course, this utility model is not limited to this. Along the length direction of the first tube body 112, the outer diameter and inner diameter of the first tube body 112 can remain unchanged.

[0047] In some examples, the outer and inner diameters of the first pipe fitting 114 remain constant along its length.

[0048] In other examples, along the length of the first pipe joint 114, one end of the first pipe joint 114 has a first constricted section, the outer diameter of the first constricted section is smaller than the outer diameter of the rest, the inner diameter of the first constricted section is smaller than the inner diameter of the rest, and the first constricted section extends into the first flared section 113.

[0049] Optionally, the materials of the first pipe body 112 and the first pipe connector 114 may be the same or different.

[0050] Optionally, the first connecting pipe 11 is a straight pipe.

[0051] The pilot valve body 2 is located on one side of the main valve body 1 and is arranged parallel to the main valve body 1. The capillary includes a first capillary 3. One end of the first capillary 3 is connected to the first connector 111, and the other end is connected to the peripheral wall of the pilot valve body 2. This enables the connection between the pilot valve body 2 and the main valve body 1, facilitating the control of the main valve body 1's operation and reversal through the pilot valve body 2.

[0052] refer to Figure 4 and Figure 5 As shown, on the projection plane perpendicular to the axis of the main valve body 1, along the axial direction of the first connecting pipe 11, the point on the pilot valve body 2 that is closest to the first connecting pipe 11 on the axis of the main valve body 1 and is farthest from the axis of the main valve body 1 is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe 11 is line L. The intersection of line L and the axis M of the first capillary tube 3 is point P1. The intersection of the axis of the first capillary tube 3 and the outer peripheral wall of the first connecting pipe 11 on the side where the first connector 111 is located is point P2. The tangent to the axis M of the first capillary tube 3 at point P1 is tangent L1. The tangent to the axis M of the first capillary tube 3 at point P2 is tangent L2. The angle between tangent L1 and tangent L2 is θ, and satisfies 65°≤θ≤115°.

[0053] It should be noted that point P2 is the intersection of the axis of the first capillary tube 3 and the outer wall of the first connector 11 on the side where the first joint 111 is located. The outer wall of the first connector 11 is missing at the first joint 111. At this time, the outer wall of the first connector 11 is filled in and intersected with the axis of the first capillary tube 3 to obtain point P2.

[0054] It is understandable that, between points P1 and P2, the first capillary 3 has at least one bend. Figure 1 In the example shown, the first capillary 3 has a bend between points P1 and P2.

[0055] In this application, by ensuring that the angle θ between the tangent L1 of the axis M of the first capillary tube 3 at point P1 and the tangent L2 of the axis M of the first capillary tube 3 at point P2 satisfies 65°≤θ≤115°, the bending shape of the first capillary tube 3 can be defined. When the first connecting pipe 11 is affected by the vibration of the compressor, the deformation of the bending part of the first capillary tube 3 can reduce the vibration transmitted to the connection between the first capillary tube 3 and the pilot valve body 2, so as to avoid damage to the weld at the connection between the first capillary tube 3 and the pilot valve body 2.

[0056] The angle θ between the tangent L1 of the axis M of the first capillary 3 at point P1 and the tangent L2 of the axis M of the first capillary 3 at point P2 can be 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105° or 110°, etc.

[0057] According to the four-way valve assembly 100 of this utility model embodiment, on the projection plane perpendicular to the axis of the main valve body 1, along the axial direction of the first connecting pipe 11, the point on the pilot valve body 2 located on the side of the main valve body 1 closest to the first connecting pipe 11 and farthest from the axis of the main valve body 1 is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe 11 is line L. The intersection of line L and the axis M of the first capillary tube 3 is point P1. The intersection of the axis of the first capillary tube 3 and the outer peripheral wall of the first connecting pipe 11 on the side where the first connector 111 is located is point P2. The axis M of the first capillary tube 3 is located at point P1. The tangent at point P2 is tangent L1, and the tangent at point P2 to the axis M of the first capillary tube 3 is tangent L2. By ensuring that the angle θ between tangents L1 and L2 satisfies 65°≤θ≤115°, the bending shape of the first capillary tube 3 can be defined. When the first connecting pipe 11 is affected by the vibration of the compressor, the deformation of the bending part of the first capillary tube 3 can reduce the vibration transmitted to the connection between the first capillary tube 3 and the pilot valve body 2, reduce the force at the connection between the first capillary tube 3 and the pilot valve body 2, and prevent the weld joint at the connection between the first capillary tube 3 and the pilot valve body 2 from being damaged.

[0058] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the first capillary tube 3 includes a first straight tube section 31, a second straight tube section 32, and a third straight tube section. One end of the first straight tube section 31 is connected to the first connector 111. The second straight tube section 32 is at an angle to the first straight tube section 31. One end of the second straight tube section 32 is connected to the end of the first straight tube section 31 away from the first connector 111 via a first arc-shaped section 34. One end of the third straight tube section is at an angle to the second straight tube section 32. One end of the third straight tube section is connected to the end of the second straight tube section 32 away from the first straight tube section 31 via a second arc-shaped section. The other end is connected to the pilot valve body 2. The first straight tube section 31 and the third straight tube section are located on opposite sides of the second straight tube section 32.

[0059] The first straight pipe section 31 is approximately perpendicular to the axis of the first connecting pipe 11; the second straight pipe section 32 is approximately parallel to the axis of the first connecting pipe 11; and the third straight pipe section is approximately perpendicular to both the axis of the first connecting pipe 11 and the axis of the pilot valve body 2. Point P1 is located on the axis of the second straight pipe section 32, and point P2 is located on the axis of the first straight pipe section 31. Figure 4 In the example shown, the angle θ between the tangent L1 of the axis M of the first capillary 3 at point P1 and the tangent L2 of the axis M of the first capillary 3 at point P2 can be the angle between the axis of the second straight tube segment 32 and the axis of the first straight tube segment 31.

[0060] In some embodiments of this utility model, such as Figure 1As shown, the connecting pipe also includes a second connecting pipe 12, which is adapted to connect to the compressor's exhaust port. One end of the second connecting pipe 12 is connected to the peripheral wall of the main valve body 1, and the other end of the second connecting pipe 12 is adapted to connect to the compressor's exhaust port. The second connecting pipe 12 has a second connector 121. The second connector 121 can be disposed on the peripheral wall of the second connecting pipe 12, and the second connector 121 has an annular structure with one end connected to the outer peripheral wall of the second connecting pipe 12.

[0061] Furthermore, the second connecting pipe 12 includes a second pipe body 122 and a second pipe connector 124. One end of the second pipe body 122 is connected to the main valve body 1, and one end of the second pipe connector 124 extends into the end of the second pipe body 122 that is away from the main valve body 1. Specifically, the end of the second pipe body 122 that is away from the main valve body 1 is provided with a second flared section 123. The outer diameter of the second flared section 123 is larger than the outer diameter of the rest of the pipe body, and the inner diameter of the second flared section 123 is larger than the inner diameter of the rest of the pipe body. One end of the second pipe connector 124 extends into the second flared section 123, which facilitates the second pipe connector 124 to extend into the second pipe body 122 and facilitates connection with other pipe structures through the second pipe connector 124.

[0062] Of course, this utility model is not limited to this. Along the length direction of the second tube body 122, the outer diameter and inner diameter of the second tube body 122 can remain unchanged.

[0063] In some examples, the outer and inner diameters of the second pipe fitting 124 remain constant along its length.

[0064] In other examples, along the length of the second pipe joint 124, one end of the second pipe joint 124 has a second constricted section, the outer diameter of the second constricted section being smaller than the outer diameter of the rest, the inner diameter of the second constricted section being smaller than the inner diameter of the rest, and the second constricted section extending into the second flared section 123.

[0065] Optionally, the materials of the second pipe body 122 and the second pipe connector 124 may be the same or different.

[0066] Optionally, the second pipe 12 is a bend, and the second pipe 12 and the first pipe 11 are connected to opposite sides of the main valve body 1. The end of the second pipe 12 away from the main valve body 1 is bent toward the side of the main valve body 1 where the first pipe 11 is located.

[0067] Furthermore, such as Figure 1As shown, the capillary tube also includes a second capillary tube 4. One end of the second capillary tube 4 is connected to the second connector 121, and the other end is connected to the axial end face of the pilot valve body 2. The intersection of the axis of the second capillary tube 4 and the outer peripheral wall of the second connector 12 is point B1. The intersection of the axis of the second capillary tube 4 and the axial end face of the pilot valve body 2 is point B2. The straight-line distance between point B1 and point B2 is L3. The length of the second capillary tube 4 between point B1 and point B2 is L4, and satisfies: L4 / L3≥1.1.

[0068] It should be noted that point B1 is the intersection of the axis of the second capillary tube 4 and the outer wall of the second connector 12 on the side where the second connector 121 is located. The outer wall of the second connector 12 is missing at the second connector 121. At this time, the outer wall of the second connector 12 is filled in and intersected with the axis of the second capillary tube 4 to obtain point B1.

[0069] In addition, Figure 1 In the example shown, the axial end face of the pilot valve body 2 is provided with an annular boss to facilitate connection with the second capillary tube 4. The second capillary tube 4 extends into the annular boss. At this time, the end face of the free end of the annular boss is not used as the axial end face of the pilot valve body 2. The axial end face of the pilot valve body 2 is the end face where the annular boss is set, that is, the end face of the fixed end of the annular boss. When obtaining point B2, the intersection of the axis of the second capillary tube 4 and the end face of the pilot valve body 2 where the annular boss is set is taken as point B2.

[0070] In addition, the length L4 of the second capillary 4 between point B1 and point B2 is the actual length of the second capillary 4 between point B1 and point B2, that is, the length of the second capillary 4 after it is straightened.

[0071] In this application, the straight-line distance L3 between points B1 and B2 and the length L4 of the second capillary tube 4 between points B1 and B2 satisfy: L4 / L3≥1.1. This allows the second capillary tube 4 to have better deformability, reducing the vibration of the compressor transmitted through the pipeline to the connection between the second capillary tube 4 and the pilot valve body 2, reducing the stress at the connection, and preventing damage to the weld joint at the connection.

[0072] In some embodiments of this utility model, such as Figure 1As shown, the second capillary tube 4 includes a fourth straight tube section 41, a fifth straight tube section 42, and a sixth straight tube section 43. One end of the fourth straight tube section 41 is connected to the second connector 121. The fifth straight tube section 42 is at an angle to the fourth straight tube section 41. One end of the fifth straight tube section 42 is connected to the end of the fourth straight tube section 41 away from the second connector 121 through a third arc-shaped section 44. One end of the sixth straight tube section 43 is at an angle to the fifth straight tube section 42. One end of the sixth straight tube section 43 is connected to the end of the fifth straight tube section 42 away from the fourth straight tube section 41 through a fourth arc-shaped section 45. The other end is connected to the pilot valve body 2. The fourth straight tube section 41 and the sixth straight tube section 43 are located on the same side of the fifth straight tube section 42.

[0073] The fourth straight pipe section 41 is roughly parallel to the axis of the main valve body 1, the fifth straight pipe section 42 is roughly perpendicular to the axis of the main valve body 1, and the sixth straight pipe section 43 is roughly coincident with the axis of the pilot valve body 2. Point B1 is located on the axis of the fourth straight pipe section 41, and point B2 is located on the axis of the sixth straight pipe section 43.

[0074] In some embodiments of this utility model, such as Figure 1 As shown, the second connecting pipe 12 and the first connecting pipe 11 are connected to opposite sides of the main valve body 1 in the radial direction. This optimizes the internal flow channel design of the main valve body 1, reduces pressure loss, balances piston force, improves switching reliability, and reduces noise and vibration.

[0075] In some embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 6 As shown, the connecting pipe also includes a third connecting pipe 13 and a fourth connecting pipe 14. The third connecting pipe 13, the fourth connecting pipe 14, and the first connecting pipe 11 are connected to the same side of the main valve body 1 in the radial direction. Along the axial direction of the main valve body 1, the third connecting pipe 13 and the fourth connecting pipe 14 are located on opposite sides of the first connecting pipe 11. When the four-way valve assembly 100 is applied to an air conditioner, one of the third connecting pipe 13 and the fourth connecting pipe 14 can be connected to the indoor heat exchanger, and the other of the third connecting pipe 13 and the fourth connecting pipe 14 can be connected to the outdoor heat exchanger. Additionally, the first connecting pipe 11 can be connected to one of the third connecting pipe 13 and the fourth connecting pipe 14, and the second connecting pipe 12 can be connected to the other of the third connecting pipe 13 and the fourth connecting pipe 14, fulfilling the refrigerant reversal requirements and thus achieving cooling and heating functions for the air conditioner.

[0076] The third connecting pipe 13 includes a third pipe body 131 and a third pipe connector 133. One end of the third pipe body 131 is connected to the main valve body 1, and one end of the third pipe connector 133 extends into the end of the third pipe body 131 that is away from the main valve body 1. Specifically, the end of the third pipe body 131 that is away from the main valve body 1 has a third flared section 132. The outer diameter of the third flared section 132 is larger than the outer diameter of the rest of the pipe body, and the inner diameter of the third flared section 132 is larger than the inner diameter of the rest of the pipe body. One end of the third pipe connector 133 extends into the third flared section 132, which facilitates the insertion of the third pipe connector 133 into the third pipe body 131 and facilitates connection with other pipe structures through the third pipe connector 133.

[0077] Of course, this utility model is not limited to this. Along the length direction of the third tube body 131, the outer diameter and inner diameter of the third tube body 131 can remain unchanged.

[0078] In some examples, the outer and inner diameters of the third pipe joint 133 remain constant along its length.

[0079] In other examples, along the length of the third pipe joint 133, one end of the third pipe joint 133 has a third constricted section, the outer diameter of the third constricted section is smaller than the outer diameter of the rest, the inner diameter of the third constricted section is smaller than the inner diameter of the rest, and the third constricted section extends into the third flared section 132.

[0080] Optionally, the materials of the third pipe body 131 and the third pipe connector 133 may be the same or different.

[0081] Optionally, the third connector 13 is a straight pipe.

[0082] The fourth connecting pipe 14 includes a fourth pipe body 141 and a fourth pipe connector 143. One end of the fourth pipe body 141 is connected to the main valve body 1, and one end of the fourth pipe connector 143 extends into the end of the fourth pipe body 141 that is away from the main valve body 1. Specifically, the end of the fourth pipe body 141 that is away from the main valve body 1 has a fourth flared section 142. The outer diameter of the fourth flared section 142 is larger than the outer diameter of the rest of the pipe body, and the inner diameter of the fourth flared section 142 is larger than the inner diameter of the rest of the pipe body. One end of the fourth pipe connector 143 extends into the fourth flared section 142, which facilitates the fourth pipe connector 143 to extend into the fourth pipe body 141 and facilitates connection with other pipe structures through the fourth pipe connector 143.

[0083] Of course, this utility model is not limited to this. Along the length direction of the fourth tube body 141, the outer diameter and inner diameter of the fourth tube body 141 can remain unchanged.

[0084] In some examples, the outer and inner diameters of the fourth pipe fitting 143 remain constant along its length.

[0085] In other examples, along the length of the fourth pipe joint 143, one end of the fourth pipe joint 143 has a fourth constriction section, the outer diameter of the fourth constriction section is smaller than the outer diameter of the rest, the inner diameter of the fourth constriction section is smaller than the inner diameter of the rest, and the fourth constriction section extends into the fourth flared section 142.

[0086] Optionally, the materials of the fourth pipe body 141 and the fourth pipe connector 143 may be the same or different.

[0087] Optionally, the fourth connector 14 is a straight pipe.

[0088] In some embodiments of this utility model, such as Figure 1 and Figure 6 As shown, the capillary also includes a third capillary 6 and a fourth capillary 7. One end of the third capillary 6 and the fourth capillary 7 are connected to the side of the main valve body 1 facing the first connecting pipe 11, and the other end is connected to the peripheral wall of the pilot valve body 2. In the axial direction of the first connecting pipe 11, the maximum distance between the first connector 111 and the axis of the main valve body 1 is H1. The maximum distance between the portion of the third capillary 6 located on the axis of the main valve body 1 near the first connecting pipe 11 and the axis of the main valve body 1 is H2. The maximum distance between the portion of the fourth capillary 7 located on the axis of the main valve body 1 near the first connecting pipe 11 and the axis of the main valve body 1 is H3. And satisfy: H1 > H2, H1 > H3.

[0089] Therefore, when welding the first pipe joint 114, the third pipe joint 133 and the fourth pipe joint 143, the first pipe joint 11, the third pipe joint 13 and the fourth pipe joint 14 are set upwards, and the first joint 111 is completely submerged in water, so that the first capillary tube 3, the third capillary tube 6 and the fourth capillary tube 7 are completely located in the water, so that they are not affected by the welding process above the water surface.

[0090] Furthermore, H2 and H3 satisfy the condition: H2 = H3, and the third capillary tube 6 and the fourth capillary tube 7 are symmetrically arranged. This simplifies the structure and processing technology of the four-way valve assembly 100 and improves production efficiency.

[0091] In some examples of this utility model, such as Figure 1 and Figure 6As shown, both the third capillary tube 6 and the fourth capillary tube 7 include a seventh straight tube section, an eighth straight tube section 62, a ninth straight tube section 63, and a tenth straight tube section 64. One end of the seventh straight tube section is connected to the pilot valve body 2, and the other end extends toward the main valve body 1. One end of the eighth straight tube section 62 is connected to one end of the seventh straight tube section through a fifth arc-shaped section. One end of the eighth straight tube section 62 extends toward the main valve body 1 where the first connecting pipe 11 is provided. One end of the ninth straight tube section 63 is connected to the end of the eighth straight tube section 62 away from the seventh straight tube section through a sixth arc-shaped section 66, and the other end extends toward the main valve body 1 and the side of the main valve body 1 where the first connecting pipe 11 is provided. One end of the tenth straight tube section 64 is connected to the end of the ninth straight tube section 63 away from the eighth straight tube section 62 through a seventh arc-shaped section 67, and the other end extends toward the side of the main valve body 1 where the second connecting pipe 12 is provided and is connected to the main valve body 1.

[0092] The connection point between the ninth straight pipe section 63 and the tenth straight pipe section 64 is the position where the third capillary tube 6 and the fourth capillary tube 7 are furthest from the axis of the main valve body 1.

[0093] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the four-way valve assembly 100 also includes a bracket 8, at least a portion of which is located between the main valve body 1 and the pilot valve body 2, for connecting the main valve body 1 and the pilot valve body 2, thereby connecting the main valve body 1 and the pilot valve body 2 together and ensuring the reliability of the connecting pipe and capillary connection on the main valve body 1 and the pilot valve body 2.

[0094] Furthermore, such as Figure 1 and Figure 2 As shown, the bracket 8 includes a first connecting part 81, a second connecting part 82, and a support part 83. The first connecting part 81 is connected to the outer peripheral wall of the main valve body 1, and the second connecting part 82 is connected to the outer peripheral wall of the pilot valve body 2. The second connecting part 82 and the first connecting part 81 are spaced apart. The support part 83 connects the first connecting part 81 and the second connecting part 82. Thus, by setting the first connecting part 81 on the outer wall of the main valve body 1, the reliability of the connection between the bracket 8 and the main valve body 1 is ensured. By setting the second connecting part 82 on the outer wall of the pilot valve body 2, the reliability of the connection between the bracket 8 and the pilot valve body 2 is also ensured. In this way, the bracket 8 connects the pilot valve body 2 and the main valve body 1 together.

[0095] In some examples of this utility model, such as Figure 1 and Figure 2As shown, the bracket 8 also includes a connecting pipe 84, which is located on the outer peripheral wall of the main valve body 1. The connecting pipe 84 and the first connecting part 81 are arranged and connected in the circumferential direction of the main valve body 1. The second connecting pipe 12 passes through the connecting pipe 84 and is welded to both the main valve body 1 and the connecting pipe 84. This allows the connecting pipe 84 to provide more welding positions for the second connecting pipe 12, thereby increasing the welding length of the second connecting pipe 12, improving the welding quality, and reducing stress concentration. This ensures the sealing reliability between the second connecting pipe 12 and the main valve body 1 when the second connecting pipe 12 is subjected to the impact force of the refrigerant flowing out of the compressor's exhaust port, effectively preventing refrigerant leakage.

[0096] In some embodiments of this utility model, the main valve body 1, the pilot valve body 2, and the connecting pipe are made of stainless steel, while the capillary tube is made of copper. The stainless steel main valve body 1, pilot valve body 2, and connecting pipe have a more compact layout and lower heat transfer defects.

[0097] The internal structure of the four-way valve assembly 100 according to an embodiment of the present invention and its working process when applied to an air conditioner are briefly described below.

[0098] The main valve body 1 has a first valve chamber, and the first valve chamber has a first connector. The first connector is movably disposed in the first valve chamber and is used to control the connection between the first connecting pipe 11 and one of the third connecting pipe 13 and the fourth connecting pipe 14, and the second connecting pipe 12 and the other of the third connecting pipe 13 and the fourth connecting pipe 14.

[0099] The pilot valve body 2 has a second valve chamber, within which a second connector is movably disposed. The second connector is used to control communication between the second capillary 4 and one of the fourth capillary 7 and the third capillary 6, as well as communication between the first capillary 3 and the other of the fourth capillary 7 and the third capillary 6. The third capillary 6 and the fourth capillary 7 are respectively connected to both sides of the first connector within the first valve chamber, for driving the movement of the first connector.

[0100] The following explanation uses the example of the third connecting pipe 13 being connected to one end of the indoor heat exchanger and the fourth connecting pipe 14 being connected to one end of the outdoor heat exchanger.

[0101] The air conditioning system includes a cooling mode. In cooling mode, the second connector controls the connection between the second capillary tube 4 and the fourth capillary tube 7, and between the first capillary tube 3 and the third capillary tube 6. At this time, the second connecting pipe 12 and the fourth connecting pipe 14 are connected, and the first connecting pipe 11 and the third connecting pipe 13 are connected. The high-temperature and high-pressure refrigerant discharged from the compressor flows to the outdoor heat exchanger through the second connecting pipe 12, the main valve body 1, and the fourth connecting pipe 14. The refrigerant that has completed heat exchange in the outdoor heat exchanger flows to the indoor heat exchanger for heat exchange. The refrigerant that has completed heat exchange in the indoor heat exchanger flows back to the compressor's return port through the third connecting pipe 13, the main valve body 1, and the first connecting pipe 11.

[0102] The air conditioning system includes a heating mode. In heating mode, the second connector controls the connection between the second capillary tube 4 and the third capillary tube 6, and between the first capillary tube 3 and the fourth capillary tube 7. At this time, the second connecting pipe 12 and the third connecting pipe 13 are connected, and the first connecting pipe 11 and the fourth connecting pipe 14 are connected. The high-temperature and high-pressure refrigerant discharged from the compressor flows to the indoor heat exchanger through the second connecting pipe 12, the main valve body 1, and the third connecting pipe 13. The refrigerant that has completed heat exchange in the indoor heat exchanger flows to the outdoor heat exchanger for heat exchange. The refrigerant that has completed heat exchange in the outdoor heat exchanger flows back to the compressor's return port through the fourth connecting pipe 14, the main valve body 1, and the first connecting pipe 11.

[0103] The compressor assembly according to an embodiment of the present invention is described below.

[0104] The compressor assembly according to an embodiment of the present invention includes a compressor and the four-way valve assembly 100 described above.

[0105] Specifically, the compressor has an exhaust port and a return port. The end of the first connecting pipe 11 facing away from the main valve body 1 is connected to the return port. When the four-way valve assembly 100 also includes a second connecting pipe 12, the second connecting pipe 12 is connected to the exhaust port of the compressor.

[0106] One end of the first capillary tube 3 is connected to the first connector 111, and the other end is connected to the peripheral wall of the pilot valve body 2. (Refer to...) Figure 4 and Figure 5 As shown, on the projection plane perpendicular to the axis of the main valve body 1, along the axial direction of the first connecting pipe 11, the point on the pilot valve body 2 that is closest to the first connecting pipe 11 on the axis of the main valve body 1 and is farthest from the axis of the main valve body 1 is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe 11 is line L. The intersection of line L and the axis M of the first capillary tube 3 is point P1. The intersection of the axis of the first capillary tube 3 and the outer peripheral wall of the first connecting pipe 11 on the side where the first connector 111 is located is point P2. The tangent to the axis M of the first capillary tube 3 at point P1 is tangent L1. The tangent to the axis M of the first capillary tube 3 at point P2 is tangent L2. The angle between tangent L1 and tangent L2 is θ, and satisfies 65°≤θ≤115°.

[0107] It is understandable that, between points P1 and P2, the first capillary 3 has at least one bend. Figure 1 In the example shown, the first capillary 3 has at least one bend between points P1 and P2.

[0108] In this application, by ensuring that the angle θ between the tangent L1 of the axis M of the first capillary tube 3 at point P1 and the tangent L2 of the axis M of the first capillary tube 3 at point P2 satisfies 65°≤θ≤115°, the bending shape of the first capillary tube 3 can be defined. When the first connecting pipe 11 is affected by the vibration of the compressor, the deformation of the bending part of the first capillary tube 3 can reduce the vibration transmitted to the connection between the first capillary tube 3 and the pilot valve body 2, so as to avoid damage to it.

[0109] According to the compressor assembly of this utility model embodiment, by setting the above-mentioned four-way valve assembly 100, on the projection plane perpendicular to the axis of the main valve body 1, along the axial direction of the first connecting pipe 11, the point on the pilot valve body 2 located on the side of the main valve body 1 closest to the first connecting pipe 11 and farthest from the axis of the main valve body 1 is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe 11 is line L. The intersection of line L and the axis M of the first capillary tube 3 is point P1. The intersection of the axis of the first capillary tube 3 and the outer peripheral wall of the side of the first connecting pipe 11 where the first connector 111 is located is point P2. The tangent to axis M at point P1 is tangent L1, and the tangent to axis M of the first capillary tube 3 at point P2 is tangent L2. By ensuring that the angle θ between tangents L1 and L2 satisfies 65°≤θ≤115°, the bending shape of the first capillary tube 3 can be defined. When the first connecting pipe 11 is affected by the vibration of the compressor, the deformation of the bending part of the first capillary tube 3 can reduce the vibration transmitted to the connection between the first capillary tube 3 and the pilot valve body 2, reduce the force at the connection between the first capillary tube 3 and the pilot valve body 2, and prevent the weld joint at the connection between the first capillary tube 3 and the pilot valve body 2 from being damaged.

[0110] The following describes an air conditioner according to an embodiment of the present invention.

[0111] The air conditioner according to an embodiment of the present invention includes the compressor assembly described above.

[0112] According to the air conditioner of this utility model embodiment, by setting the above-mentioned compressor assembly, including the above-mentioned four-way valve assembly 100, on the projection plane perpendicular to the axis of the main valve body 1, along the axial direction of the first connecting pipe 11, the point on the pilot valve body 2 located on the side of the main valve body 1 closest to the first connecting pipe 11 and farthest from the axis of the main valve body 1 is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe 11 is line L. The intersection of line L and the axis M of the first capillary tube 3 is point P1. The intersection of the axis of the first capillary tube 3 and the outer peripheral wall of the side of the first connecting pipe 11 where the first connector 111 is located is point P2. The tangent to the axis M of the capillary tube 3 at point P1 is tangent L1, and the tangent to the axis M of the first capillary tube 3 at point P2 is tangent L2. By ensuring that the angle θ between tangents L1 and L2 satisfies 65°≤θ≤115°, the bending shape of the first capillary tube 3 can be defined. When the first connecting pipe 11 is affected by the vibration of the compressor, the deformation of the bending part of the first capillary tube 3 can reduce the vibration transmitted to the connection between the first capillary tube 3 and the pilot valve body 2, reduce the force at the connection between the first capillary tube 3 and the pilot valve body 2, and prevent the weld joint at the connection between the first capillary tube 3 and the pilot valve body 2 from being damaged.

[0113] Other components and operations of the air conditioner according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0114] 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.

[0115] 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. A four-way valve assembly, characterized by, include: The main valve body is connected to a connecting pipe, the connecting pipe including a first connecting pipe adapted to connect to the return port of the compressor, and the first connecting pipe having a first connector; A pilot valve body, wherein the pilot valve body is located on one side of the main valve body and is arranged parallel to the main valve body; The capillary tube includes a first capillary tube, one end of which is connected to the first connector, and the other end of which is connected to the peripheral wall of the pilot valve body. On the projection plane perpendicular to the axis of the main valve body, along the axial direction of the first connecting pipe, the point on the pilot valve body that is closest to the axis of the main valve body and furthest from the axis of the main valve body is point A. The straight line passing through point A and perpendicular to the axis of the first connecting pipe is line L. The intersection of line L and the axis of the first capillary is point P1. The intersection of the axis of the first capillary and the outer peripheral wall of the first connecting pipe on the side where the first connector is located is point P2. The tangent to the axis of the first capillary at point P1 is tangent L1. The tangent to the axis of the first capillary at point P2 is tangent L2. The angle between tangent L1 and tangent L2 is θ, and satisfies 65°≤θ≤115°.

2. The four-way valve assembly according to claim 1, characterized in that, The first capillary includes: The first straight pipe section, one end of which is connected to the first joint; The second straight pipe section is at an angle to the first straight pipe section, and one end of the second straight pipe section is connected to the end of the first straight pipe section away from the first joint through a first arc-shaped section. The third straight pipe section has one end at an angle to the second straight pipe section. One end of the third straight pipe section is connected to the end of the second straight pipe section opposite to the first straight pipe section through a second arc-shaped section, and the other end is connected to the pilot valve body. The first straight pipe section and the third straight pipe section are located on opposite sides of the second straight pipe section.

3. The four-way valve assembly according to claim 1, characterized in that, The connecting pipe further includes a second connecting pipe adapted to connect to the compressor's discharge port, the second connecting pipe having a second connector, and the capillary tube further includes: The second capillary tube has one end connected to the second connector and the other end connected to the axial end of the pilot valve body. The intersection of the axis of the second capillary tube and the outer peripheral wall of the second connector is point B1, and the intersection of the axis of the second capillary tube and the axial end face of the pilot valve body connected to the second capillary tube is point B2. The straight-line distance between points B1 and B2 is L3, and the length of the second capillary tube between points B1 and B2 is L4, satisfying: L4 / L3≥1.

1.

4. The four-way valve assembly according to claim 3, characterized in that, The second capillary includes: The fourth straight pipe section, one end of which is connected to the second connector; The fifth straight pipe section is at an angle to the fourth straight pipe section, and one end of the fifth straight pipe section is connected to the end of the fourth straight pipe section away from the second joint through a third arc-shaped section; The sixth straight pipe section has one end at an angle to the fifth straight pipe section. One end of the sixth straight pipe section is connected to the end of the fifth straight pipe section opposite to the fourth straight pipe section through a fourth arc-shaped section, and the other end is connected to the pilot valve body. The fourth straight pipe section and the sixth straight pipe section are located on the same side of the fifth straight pipe section.

5. The four-way valve assembly according to claim 3, characterized in that, The second connector and the first connector are connected to opposite sides of the main valve body in the radial direction.

6. The four-way valve assembly according to claim 1, characterized in that, The capillary also includes: The third and fourth capillary tubes are each connected at one end to the side of the main valve body facing the first connecting pipe, and at the other end to the peripheral wall of the pilot valve body. In the axial direction of the first connector, the maximum distance between the first connector and the axis of the main valve body is H1, the maximum distance between the portion of the third capillary located on the axis of the main valve body near the first connector and the axis of the main valve body is H2, and the maximum distance between the portion of the fourth capillary located on the axis of the main valve body near the first connector and the axis of the main valve body is H3, and satisfying: H1 > H2, H1 > H3.

7. The four-way valve assembly according to claim 6, characterized in that, H2 and H3 satisfy the condition: H2 = H3.

8. The four-way valve assembly according to claim 6, characterized in that, The third capillary and the fourth capillary are arranged symmetrically.

9. The four-way valve assembly according to claim 6, characterized in that, The connector also includes a third connector and a fourth connector. The third connector, the fourth connector and the first connector are connected to the same side of the main valve body in the radial direction. In the axial direction of the main valve body, the third connector and the fourth connector are located on opposite sides of the first connector.

10. The four-way valve assembly according to claim 1, characterized in that, Also includes: A bracket, at least a portion of which is located between the main valve body and the pilot valve body, for connecting the main valve body and the pilot valve body.

11. The four-way valve assembly according to claim 1, characterized in that, The main valve body, the pilot valve body, and the connecting pipe are made of stainless steel, while the capillary tube is made of copper.

12. A compressor assembly, characterized in that, include: The compressor has an exhaust port and an exhaust port; According to any one of claims 1-11, in the four-way valve assembly, the end of the first connecting pipe opposite to the main valve body is connected to the return port.

13. An air conditioner, characterized in that, Includes the compressor assembly as described in claim 12.

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