Valve and compressor unit

Abstract

The application provides a valve and a compressor unit. The valve comprises a valve housing and a valve core. The valve housing comprises a housing main body and a plurality of through pipes. The through pipes are connected to the circumferential side of the housing main body at intervals along the circumference of the housing main body. The valve core is arranged in the housing main body and rotates. The valve core is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel. One port of the first flow channel is communicated with the second flow channel. The third flow channel and the fourth flow channel are arranged at intervals. The valve comprises a first communication state and a second communication state. When the valve is in the first communication state, the other port of the first flow channel and the two ports of the second flow channel are respectively communicated with different through pipes. When the valve is in the second communication state, the two ports of the third flow channel and the two ports of the fourth flow channel are respectively communicated with different through pipes. In this way, the valve can have multiple communication states, and the direction can be changed according to the needs, thereby improving the versatility of the valve.

Description

Technical Field

[0001] This application relates to the field of directional valves, and more particularly to a valve component and compressor unit. Background Technology

[0002] An air source heat pump is an energy-saving device that utilizes high-grade energy to transfer heat from a low-grade heat source (air) to a high-grade heat source (air). During heating, it extracts heat energy from the air and then transfers it indoors. Valves, as a crucial component of the air source heat pump, control the flow of the piping. However, traditional valves only connect the flow channels and cannot reverse the flow. Therefore, when switching between cooling, heating, and defrosting modes, multiple valves are required to control the piping flow under different operating conditions. This significantly increases the overall piping complexity of the air source heat pump, thereby increasing manufacturing costs.

[0003] Therefore, it is necessary to provide an improved valve to solve some or all of the above problems. Utility Model Content

[0004] This application provides a valve and compressor unit with a reversing function.

[0005] This application provides a valve component, including: A valve housing, the valve housing comprising a housing body and a plurality of through pipes, the plurality of through pipes being connected at intervals to the periphery of the housing body along the circumference of the housing body; The valve core is rotatably disposed within the housing body, and the valve core is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, one end of the first flow channel is connected to the second flow channel, and the third flow channel and the fourth flow channel are spaced apart; The valve includes a first connected state and a second connected state; when the valve is in the first connected state, the other port of the first flow channel and the two ports of the second flow channel are respectively connected to different pipes, and the two ports of the third flow channel and the two ports of the fourth flow channel are sealed to the inner wall of the shell body; when the valve is in the second connected state, the two ports of the third flow channel and the two ports of the fourth flow channel are respectively connected to different pipes, and the other port of the first flow channel and the two ports of the second flow channel are sealed to the inner wall of the shell body.

[0006] Furthermore, the shell body includes a first opening, a second opening, a third opening, and a fourth opening. The center line connecting the first opening and the third opening, and the center line connecting the second opening and the fourth opening are perpendicular to each other and lie in the same plane. The plurality of through pipes are respectively connected to the first opening, the second opening, the third opening, and the fourth opening.

[0007] Furthermore, the center line connecting one port of the third flow channel and one port of the fourth flow channel is perpendicular to the center line connecting the other port of the third flow channel and the other port of the fourth flow channel, and the two ports of the second flow channel are arranged opposite to each other.

[0008] Furthermore, one port of the second flow channel is located between the two ports of the third flow channel, and the other port is located between the two ports of the fourth flow channel, while the other port of the first flow channel is located between one port of the third flow channel and one port of the fourth flow channel.

[0009] Furthermore, it also includes a drive assembly; the drive assembly is fixed to the housing body and connected to the valve core to drive the valve core to rotate.

[0010] Furthermore, the drive assembly includes a power component and a transmission component. The power component is fixed to the side plate of the housing body and connected to the transmission component. The transmission component is located inside the housing body and engages with the valve core in a transmission manner.

[0011] Furthermore, the valve core is provided with oil guide grooves, which are respectively located on opposite sides of the valve core.

[0012] This application also provides a compressor unit, including: compressor; A reversing valve, which is connected to the inlet and outlet of the compressor respectively; The valve described above is provided in two parts; An indoor heat exchanger, wherein the indoor heat exchanger is connected between the reversing valve and one of the valve components; The first outdoor heat exchanger is connected between the two valves. The second outdoor heat exchanger is connected between the two valves and is arranged in parallel with the first outdoor heat exchanger.

[0013] Furthermore, it also includes: A first bypass valve is connected between the first outdoor heat exchanger and the indoor heat exchanger. The second bypass valve is connected between the second outdoor heat exchanger and the indoor heat exchanger, and is arranged in parallel with the first bypass valve.

[0014] Furthermore, the first outdoor heat exchanger includes a first fan, and the second outdoor heat exchanger includes a second fan, with the first fan and the second fan arranged at intervals.

[0015] Compared with the prior art, the valve of this application has a first flow channel, a second flow channel, a third flow channel and a fourth flow channel in the valve core. When the valve is in the first connected state, the other port of the first flow channel and the two ports of the second flow channel are connected to different pipes respectively. When the valve is in the second connected state, the two ports of the third flow channel and the two ports of the fourth flow channel are connected to different pipes respectively. In this way, the valve can have multiple connected states and can be reversed according to the needs, thereby improving the versatility of the valve.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0018] Figure 1 This is a perspective view of the valve component in this application.

[0019] Figure 2 yes Figure 1 Exploded view of the valve component.

[0020] Figure 3 This is a schematic diagram of the valve component in the first connected state of this application.

[0021] Figure 4 This is a schematic diagram of the valve in the third connected state of this application.

[0022] Figure 5 This is a schematic diagram of the valve in the fourth connected state of this application.

[0023] Figure 6 yes Figure 2 A three-dimensional view of the valve housing.

[0024] Figure 7 yes Figure 2 A 3D view of the valve core in a valve assembly.

[0025] Figure 8 This is a cross-sectional schematic diagram of the valve core of this application.

[0026] Figure 9 This is a cross-sectional view of the valve core from another cutting angle.

[0027] Figure 10 This is a perspective view of another embodiment of the valve in this application.

[0028] Figure 11 yes Figure 10 Exploded view of the valve component.

[0029] Figure 12 This is a schematic diagram of the compressor unit in the conventional refrigeration state of this application.

[0030] Figure 13 This is a schematic diagram of the compressor unit in the low ambient temperature refrigeration state of this application.

[0031] Figure 14 This is a schematic diagram of the compressor unit in the conventional heating state of this application.

[0032] Figure 15 This is a schematic diagram of the compressor unit of this application in the defrosting state of the first outdoor heat exchanger.

[0033] Figure 16 This is a schematic diagram of the compressor unit in the defrosting state of the second outdoor heat exchanger.

[0034] Reference numerals: 10-Valve component; 101-First valve component; 102-Second valve component; 1-Valve component housing; 11-Housing body; 111-First opening; 112-Second opening; 113-Third opening; 114-Fourth opening; 12-Multiple connecting pipes; 121-First connecting pipe; 122-Second connecting pipe; 123-Third connecting pipe; 124-Fourth connecting pipe; 2-Valve core; 21-First flow channel; 22-Second flow channel; 23-Third flow channel; 24-Fourth flow channel; 25-Oil guide groove; 26-Second gear assembly; 3-Drive assembly; 31-Power component; 32-Transmission component; 321-First gear assembly; 4-Compressor; 5-Reversing valve; 6-Indoor heat exchanger; 7-First outdoor heat exchanger; 71-First fan; 8-Second outdoor heat exchanger; 81-Second fan; 901-First bypass valve; 902-Second bypass valve; 903-Indoor expansion valve; 904-Dryer filter; 905-Gas-liquid separator; 906-First outdoor expansion valve; 907-Second outdoor expansion valve. Detailed Implementation

[0035] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0036] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0037] like Figure 1 and Figure 2 As shown, the valve component 10 of this application includes a valve component housing 1 and a valve core 2, wherein the valve core 2 is disposed inside the valve component housing 1 and is rotatable relative to the valve component housing 1. Specifically, the valve component housing 1 includes a housing body 11 and a plurality of through pipes 12. Along the circumference of the housing body 11, the plurality of through pipes 12 are connected at intervals to the circumference of the housing body 11 and communicate with the cavity inside the housing body 11.

[0038] The valve core 2 is rotatably disposed within the housing body 11, and the valve core 2 is provided with a first flow channel 21, a second flow channel 22, a third flow channel 23, and a fourth flow channel 24. One end of the first flow channel 21 is connected to the second flow channel 22, and the third flow channel 23 and the fourth flow channel 24 are spaced apart. Specifically, one end of the first flow channel 21 is connected to the middle region of the second flow channel 22 inside the valve core 2, and the third flow channel 23 and the fourth flow channel 24 are not connected to each other, nor are they connected to the first flow channel 21 or the second flow channel 22. The other port of the first flow channel 21, namely the port opposite to the second flow channel 22 (hereinafter referred to as the other port of the first flow channel 21), the two ports of the second flow channel 22, the two ports of the third flow channel 23, and the two ports of the fourth flow channel 24 all pass through the periphery of the valve core 2. As the valve core 2 rotates, the ports of the first flow channel 21, the second flow channel 22, the third flow channel 23, and the fourth flow channel 24 can be connected to different pipes 12.

[0039] Further integration Figures 3 to 5As shown, valve 10 includes a first connected state and a second connected state. When valve 10 is in the first connected state, the other port of the first flow channel 21 and the two ports of the second flow channel 22 are connected to different through pipes 12, while the two ports of the third flow channel 23 and the two ports of the fourth flow channel 24 are sealed to the inner wall of the housing body 11. When valve 10 is in the second connected state, the two ports of the third flow channel 23 and the two ports of the fourth flow channel 24 are connected to different through pipes 12, while the other port of the first flow channel 21 and the two ports of the second flow channel 22 are sealed to the inner wall of the housing body 11. This arrangement allows valve 10 to have multiple connected states and to be switched as needed, thereby improving the versatility of valve 10.

[0040] It should be noted that when the valve 10 is in the first connected state, the inner wall of the shell body 11 blocks the two ports of the third flow channel 23 and the two ports of the fourth flow channel 24. When the valve 10 is in the second connected state, the inner wall of the shell body 11 blocks the other port of the first flow channel 21 and the two ports of the second flow channel 22.

[0041] Further integration Figure 6 As shown, in some embodiments, the shell body 11 includes a first opening 111, a second opening 112, a third opening 113, and a fourth opening 114. The first opening 111, the second opening 112, the third opening 113, and the fourth opening 114 penetrate the periphery of the shell body 11 and communicate with a cavity within the shell body 11. The center line connecting the first opening 111 and the third opening 113, and the center line connecting the second opening 112 and the fourth opening 114, are perpendicular and lie in the same plane. In other words, the center points of the first opening 111, the second opening 112, the third opening 113, and the fourth opening 114 are located in the same plane, and the first opening 111 and the third opening 113 are positioned opposite each other, as are the second opening 112 and the fourth opening 114.

[0042] Multiple conduits 12 are respectively connected to the first opening 111, the second opening 112, the third opening 113, and the fourth opening 114. Furthermore, four conduits 12 are provided, and they are connected one-to-one to the first opening 111, the second opening 112, the third opening 113, and the fourth opening 114.

[0043] The center line connecting one port of the third flow channel 23 and one port of the fourth flow channel 24 is perpendicular to the center line connecting the other ports of the third flow channel 23 and the fourth flow channel 24, and the center points of the two ports of the third flow channel 23 and the two ports of the fourth flow channel 24 are in the same plane. The two ports of the second flow channel 22 are arranged opposite each other, and the center points of the two ports of the second flow channel 22 and the center point of the other port of the first flow channel 21 are in the same plane. Furthermore, the center points of the two ports of the third flow channel 23 and the two ports of the fourth flow channel 24, the two ports of the second flow channel 22, the other port of the first flow channel 21, and the center points of the first opening 111, the second opening 112, the third opening 113, and the fourth opening 114 are all in the same plane. This configuration allows the third flow channel 23, the fourth flow channel 24, the second flow channel 22, and the first flow channel 21 to communicate more accurately with the first opening 111, the second opening 112, the third opening 113, or the fourth opening 114, thereby improving the accuracy of the valve 10 in switching between the first and second connected states.

[0044] To more clearly illustrate the first and second connected states of valve 10, a detailed description is provided below in conjunction with the flow channels and the openings on the housing 11. For example, when valve 10 is in the first connected state, the other port of the first flow channel 21 is connected to the first opening 111, the two ports of the second flow channel 22 are connected to the second opening 112 and the fourth opening 114 respectively, and the third opening 113 is closed and fitted against the periphery of the valve core 2. The above correspondence between flow channel ports and openings when valve 10 is in the first connected state is merely illustrative. Other correspondences between flow channel ports and openings are not limited herein. For example, the other port of the first flow channel 21 may be connected to the second opening 112, while the two ports of the second flow channel 22 are connected to the first opening 111 and the third opening 113 respectively.

[0045] When valve 10 is in the second connected state, one port of the third flow channel 23 is connected to the first opening 111, and the other port is connected to the second opening 112. One port of the fourth flow channel 24 is connected to the third opening 113, and the other port is connected to the fourth opening 114. The above correspondence between flow channel ports and openings when valve 10 is in the second connected state is merely illustrative. Other correspondences between flow channel ports and openings are not limited herein. For example, one port of the third flow channel 23 may be connected to the second opening 112, and the other port to the third opening 113; one port of the fourth flow channel 24 may be connected to the fourth opening 114, and the other port to the first opening 111.

[0046] It should be noted that the valve core 2 is tightly disposed within the housing body 11. When the valve component 10 switches between the first and second connected states, the ports of each flow channel of the valve core 2 can be sealed against the inner peripheral wall of the housing body 11, while the openings on the housing body 11 are correspondingly sealed against the outer peripheral wall of the valve core 2. With this configuration, the occurrence of water leakage can be effectively reduced when the valve component 10 switches between the first and second connected states.

[0047] Further integration Figures 7 to 9 As shown, in some embodiments, one port of the second flow channel 22 is located between the two ports of the third flow channel 23, and the other port is located between the two ports of the fourth flow channel 24, while the other port of the first flow channel 21 is located between one port of the third flow channel 23 and the other port of the fourth flow channel 24. This arrangement allows the valve core 2 to switch between the first connected state and the second connected state with only a small rotation angle. For example, along the circumference of the valve core 2, the angle between the vertical line connecting the center point of the other port of the first flow channel 21 to the axis of the valve core 2 and the vertical line connecting the center point of the first port of the third flow channel 23 to the axis of the valve core 2 is 45 degrees.

[0048] The valve core 2 is provided with oil guide grooves 25, which are respectively located on opposite sides of the valve core 2. In other words, the oil guide grooves 25 are respectively located on the top and bottom sides of the valve core 2, so that the lubricating oil in the oil guide grooves 25 can lubricate the valve core 2, making the valve core 2 rotate more smoothly. To reduce costs, the oil guide grooves 25 can also be provided only on one side of the valve core 2, that is, the oil guide grooves 25 are located on the top or bottom side of the valve core 2.

[0049] Further integration Figure 10 and Figure 11 As shown, in some embodiments, the valve component 10 may further include a drive assembly 3, which is fixed to the housing body 11 and connected to the valve core 2 to drive the valve core 2 to rotate. The drive assembly 3 includes a power component 31 and a transmission component 32. The power component 31 is fixed to the side plate of the housing body 11 and connected to the transmission component 32. The transmission component 32 is located inside the housing body 11 and is in transmission cooperation with the valve core 2.

[0050] The transmission component 32 meshes with the valve core 2. Specifically, the transmission component 32 has a first tooth set 321 on its circumference, and the valve core 2 has a second tooth set 26 on its circumference. The first tooth set 321 meshes with the second tooth set 26. To make the rotation of the transmission component 32 and the valve core 2 more stable, at least two sets of the second tooth set 26 are provided, and the two sets of the second tooth set 26 are spaced apart along the thickness direction of the valve core 2. Moreover, the ports of the first flow channel 21, the second flow channel 22, the third flow channel 23, and the fourth flow channel 24 are all located between the two sets of the second tooth set 26.

[0051] To reduce the manufacturing difficulty and improve the manufacturing efficiency of the transmission component 32, the number of the first tooth set 321 corresponds to the number of the second tooth set 26, and they mesh one-to-one. To make the valve core 2 and the housing body 11 fit more tightly, the second tooth set 26 does not extend beyond the circumferential side of the valve core 2 along the radial direction of the valve core 2, while the first tooth set 321 extends beyond the circumferential side of the transmission component 32 along the radial direction of the transmission component 32, so as to mesh within the second tooth set 26.

[0052] In some other embodiments, the transmission element 32 and the valve core 2 can also be connected by a transmission belt to drive the valve core 2 to rotate.

[0053] like Figures 12 to 16 As shown, this application also provides a compressor unit, including a compressor 4, a reversing valve 5, an indoor heat exchanger 6, a first outdoor heat exchanger 7, a second outdoor heat exchanger 8, and valves 10 as described above. The reversing valve 5 is connected to the inlet and outlet of the compressor 4, respectively. Two valves 10 are provided; the indoor heat exchanger 6 is connected between the reversing valve 5 and one valve 10, and the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8 are both connected between the two valves 10, with the second outdoor heat exchanger 8 and the first outdoor heat exchanger 7 connected in parallel. The reversing valve 5 can be a four-way reversing valve.

[0054] In some embodiments, the compressor unit may further include a first bypass valve 901 and a second bypass valve 902. The first bypass valve 901 connects the first outdoor heat exchanger 7 and the indoor heat exchanger 6. The second bypass valve 902 connects the second outdoor heat exchanger 8 and the indoor heat exchanger 6, and is arranged in parallel with the first bypass valve 901. The first outdoor heat exchanger 7 includes a first fan 71, and the second outdoor heat exchanger 8 includes a second fan 81, with the first fan 71 and the second fan 81 spaced apart. This arrangement effectively reduces the occurrence of cross-flow between the first fan 71 and the second fan 81 during compressor unit defrosting, thus reducing the likelihood of this affecting the defrosting effect.

[0055] The compressor unit includes a normal cooling state, a low ambient temperature cooling state, a normal heating state, a defrosting state for the first outdoor heat exchanger 7, and a defrosting state for the second outdoor heat exchanger 8. To facilitate a detailed explanation of each operating state of the compressor unit, the following description will be based on the specific states of valve 10. Specifically, the connecting pipe 12 includes a first connecting pipe 121, a second connecting pipe 122, a third connecting pipe 123, and a fourth connecting pipe 124. The first connecting pipe 121 is connected to the first opening 111, the second connecting pipe 122 is connected to the second opening 112, the third connecting pipe 123 is connected to the third opening 113, and the fourth connecting pipe 124 is connected to the fourth opening 114.

[0056] Further integration Figures 3 to 5As shown, when valve 10 is in the first connected state, the other port of the first flow channel 21 is connected to the first through pipe 121, and the two ports of the second flow channel 22 are connected to the second through pipe 122 and the fourth through pipe 124, respectively. The second connected state of valve 10 can include a third connected state and a fourth connected state. When valve 10 is in the third connected state, one port of the third flow channel 23 is connected to the first through pipe 121, and the other port is connected to the second through pipe 122; one port of the fourth flow channel 24 is connected to the third through pipe 123, and the other port is connected to the fourth through pipe 124. When valve 10 is in the fourth connected state, one port of the third flow channel 23 is connected to the second through pipe 122, and the other port is connected to the third through pipe 123; one port of the fourth flow channel 24 is connected to the fourth through pipe 124, and the other port is connected to the first through pipe 121.

[0057] Valve 10 includes a first valve 101 and a second valve 102. The first pipe 121 of the first valve 101 is connected to the reversing valve 5. The first outdoor heat exchanger 7 is connected between the second pipe 122 of the first valve 101 and the fourth pipe 124 of the second valve 102. The second outdoor heat exchanger 8 is connected between the fourth pipe 124 of the first valve 101 and the second pipe 122 of the second valve 102. The third pipe 123 of the first valve 101 and the third pipe 123 of the second valve 102 are connected. The first pipe 121 of the second valve 102 is connected to the indoor heat exchanger 6.

[0058] The compressor unit may also include an indoor expansion valve 903, a dryer filter 904, a gas-liquid separator 905, a first outdoor expansion valve 906, and a second outdoor expansion valve 907. The indoor expansion valve 903 and the dryer filter 904 are connected in series, and the indoor expansion valve 903 is connected between the dryer filter 904 and the indoor heat exchanger 6. The other port of the dryer filter 904 is connected to the first pipe 121 of the second valve 102. The gas-liquid separator 905 is connected between the inlet of the compressor 4 and the reversing valve 5. The first outdoor expansion valve 906 is connected between the first outdoor heat exchanger 7 and the fourth pipe 124 of the second valve 102. The second outdoor expansion valve 907 is connected between the second outdoor heat exchanger 8 and the second pipe 122 of the second valve 102, and is connected in parallel with the first outdoor expansion valve 906. It should be noted that the indoor expansion valve 903, the first outdoor expansion valve 906, and the second outdoor expansion valve 907 are all electronic expansion valves.

[0059] like Figure 12As shown, when the compressor unit is in normal cooling mode, both the first valve 101 and the second valve 102 are in the first connected state, and both the first bypass valve 901 and the second bypass valve 902 are closed. The first fan 71 and the second fan 81 are working normally, and both the first outdoor expansion valve 906 and the second outdoor expansion valve 907 are fully open. The refrigerant is discharged from the compressor 4 and passes through the reversing valve 5, then flows to the first pipe 121 of the first valve 101. Next, the refrigerant undergoes exothermic condensation in the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8, and then passes through the dryer filter 904. The indoor expansion valve 903 controls the superheat normally. Subsequently, the refrigerant evaporates and absorbs heat in the indoor heat exchanger 6 (the fan of the indoor heat exchanger 6 is working normally) and then flows through the reversing valve 5. Finally, the refrigerant passes through the gas-liquid separator 905 and returns to the compressor 4.

[0060] like Figure 13 As shown, the low ambient temperature cooling state of the compressor unit is achieved by adjusting the first valve 101 and the second valve 102 to the second connected state based on the conventional cooling state. Specifically, when the compressor unit is in the low ambient temperature cooling state, the first valve 101 is in the third connected state, and the second valve 102 is in the fourth connected state. In the low ambient temperature cooling state, the second outdoor heat exchanger 8 and its second fan 81 are shut down. In the low ambient temperature cooling state, the compressor unit increases the pressure ratio of the compressor unit by reducing the outdoor heat exchange area, thereby widening the operating range of the outdoor temperature in the cooling mode.

[0061] like Figure 14 As shown, when the compressor unit is in normal heating mode, both the first valve 101 and the second valve 102 are in the first connected state, and both the first bypass valve 901 and the second bypass valve 902 are closed. The fans of the indoor heat exchanger 6, the first fan 71, and the second fan 81 are all working normally. The indoor expansion valve 903 is fully open, and both the first outdoor expansion valve 906 and the second outdoor expansion valve 907 are under normal superheat control. The refrigerant is discharged from the compressor 4 and enters the indoor heat exchanger 6 through the reversing valve 5 to release heat. Then, the refrigerant flows through the dryer filter 904 to the first pipe 121 of the second valve 102. After evaporating and absorbing heat in the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8, the refrigerant flows through the reversing valve 5. Finally, the refrigerant returns to the compressor 4 after passing through the gas-liquid separator 905.

[0062] like Figure 15 As shown, when the compressor unit is in the defrosting state of the first outdoor heat exchanger 7, that is, when the first outdoor heat exchanger 7 is defrosting alone, the first valve 101 and the second valve 102 are both in the fourth connected state, and the first bypass valve 901 is open and the second bypass valve 902 is closed to reduce the impact of pressure drop. The fan of the indoor heat exchanger 6 is controlled by frequency reduction, and the indoor expansion valve 903 and the first outdoor expansion valve 906 are in the fully open state.

[0063] Refrigerant is discharged from compressor 4 and flows through reversing valve 5 to indoor heat exchanger 6. After releasing heat in indoor heat exchanger 6, the refrigerant flows to the first pipe 121 of second valve 102. At the same time, refrigerant can also enter the first outdoor heat exchanger 7 through first bypass valve 901 to continue releasing heat and defrosting, while the first fan 71 stops working. After passing through second valve 102 for the first time, the refrigerant flows back to first valve 101. Second outdoor expansion valve 907 controls the superheat normally, and the refrigerant enters the second outdoor heat exchanger 8 from first valve 101 to evaporate and absorb heat, while the second fan 81 works normally. Then the refrigerant passes through first valve 101 again and flows to reversing valve 5, finally returning to compressor 4 through gas-liquid separator 905.

[0064] After the first outdoor heat exchanger 7 is defrosted, the first outdoor expansion valve 906 is controlled according to the normal superheat, the fan and the second fan 81 of the indoor heat exchanger 6 both resume normal operation, the first valve 101 and the second valve 102 both return to the first connected state, and the compressor unit continues to execute the normal heating process.

[0065] like Figure 16 As shown, when the compressor unit is in the defrosting state of the second outdoor heat exchanger 8, that is, when the second outdoor heat exchanger 8 is defrosting alone, both the first valve 101 and the second valve 102 are in the third connected state, and the fan of the indoor heat exchanger 6 is under reduced frequency control. The indoor expansion valve 903 and the second outdoor expansion valve 907 are fully open, while the first outdoor expansion valve 906 is under normal superheat control. The first bypass valve 901 is closed, and the second bypass valve 902 is open to reduce the impact of pressure drop.

[0066] Refrigerant is discharged from compressor 4 and flows through reversing valve 5 to indoor heat exchanger 6. After releasing heat in indoor heat exchanger 6, the refrigerant flows to the first pipe 121 of second valve 102. At the same time, refrigerant can also enter the second outdoor heat exchanger 8 through second bypass valve 902 to continue releasing heat and defrosting, while the second fan 81 stops working. Next, the refrigerant flows through first valve 101 and then into second valve 102, and then enters the first outdoor heat exchanger 7 for evaporation and heat absorption, while the first fan 71 operates normally. Finally, the refrigerant returns to compressor 4 after passing through first valve 101, reversing valve 5, and gas-liquid separator 905 in sequence.

[0067] After the second outdoor heat exchanger 8 is defrosted, the second outdoor expansion valve 907 is controlled according to the normal superheat, the fan of the indoor heat exchanger 6 and the second fan 81 resume normal operation, the first valve 101 and the second valve 102 are both restored to the first connected state, and the compressor unit continues to execute the normal heating process.

[0068] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A valve component, characterized in that, include: A valve housing, the valve housing comprising a housing body and a plurality of through pipes, the plurality of through pipes being connected at intervals to the periphery of the housing body along the circumference of the housing body; The valve core is rotatably disposed within the housing body, and the valve core is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel. One end of the first flow channel is connected to the second flow channel, and the third flow channel and the fourth flow channel are spaced apart. The valve includes a first connected state and a second connected state; when the valve is in the first connected state, the other port of the first flow channel and the two ports of the second flow channel are respectively connected to different pipes, and the two ports of the third flow channel and the two ports of the fourth flow channel are sealed to the inner wall of the shell body; when the valve is in the second connected state, the two ports of the third flow channel and the two ports of the fourth flow channel are respectively connected to different pipes, and the other port of the first flow channel and the two ports of the second flow channel are sealed to the inner wall of the shell body.

2. The valve according to claim 1, characterized in that, The shell body includes a first opening, a second opening, a third opening, and a fourth opening. The center line connecting the first opening and the third opening, and the center line connecting the second opening and the fourth opening are perpendicular to each other and lie in the same plane. The plurality of through pipes are respectively connected to the first opening, the second opening, the third opening, and the fourth opening.

3. The valve according to claim 2, characterized in that, The center line connecting one port of the third flow channel and one port of the fourth flow channel is perpendicular to the center line connecting the other port of the third flow channel and the other port of the fourth flow channel, and the two ports of the second flow channel are arranged opposite to each other.

4. The valve according to claim 3, characterized in that, One port of the second flow channel is located between the two ports of the third flow channel, and the other port is located between the two ports of the fourth flow channel. The other port of the first flow channel is located between one port of the third flow channel and the other port of the fourth flow channel.

5. The valve according to claim 1, characterized in that, It also includes a drive assembly; the drive assembly is fixed to the housing body and connected to the valve core to drive the valve core to rotate.

6. The valve according to claim 5, characterized in that, The drive assembly includes a power component and a transmission component. The power component is fixed to the side plate of the housing body and connected to the transmission component. The transmission component is located inside the housing body and is in drive cooperation with the valve core.

7. The valve according to claim 1, characterized in that, The valve core is provided with oil guide grooves, which are respectively located on opposite sides of the valve core.

8. A compressor unit, characterized in that, include: compressor; A reversing valve, which is connected to the inlet and outlet of the compressor respectively; The valve member as claimed in any one of claims 1 to 7, wherein the valve member is provided in two parts; An indoor heat exchanger, wherein the indoor heat exchanger is connected between the reversing valve and one of the valve components; The first outdoor heat exchanger is connected between the two valves. The second outdoor heat exchanger is connected between the two valves and is arranged in parallel with the first outdoor heat exchanger.

9. The compressor unit according to claim 8, characterized in that, Also includes: A first bypass valve is connected between the first outdoor heat exchanger and the indoor heat exchanger. The second bypass valve is connected between the second outdoor heat exchanger and the indoor heat exchanger, and is arranged in parallel with the first bypass valve.

10. The compressor unit according to claim 8, characterized in that, The first outdoor heat exchanger includes a first fan, and the second outdoor heat exchanger includes a second fan, with the first fan and the second fan arranged at intervals.

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