Flow path switching module and air conditioning system
By using a highly integrated flow path switching module, the problems of poor heat dissipation of electronic control components and complex piping connections in air conditioning systems are solved, achieving efficient refrigerant loop cooling and simplified piping connections, thus reducing assembly costs.
Patent Information
- Application Number
- CN202520026723.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The heat dissipation of electrical control components in existing air conditioning systems is poor, and the piping connections are complex, costly, and inefficient.
Design a highly integrated flow path switching module, including first to fourth control valves, to realize flow path switching during cooling or heating, ensure the cooling effect of the refrigerant loop, and simplify pipeline connection.
It improves the heat dissipation of electronic control components, reduces assembly difficulty and cost, extends the service life of electronic control components, and simplifies the pipeline connection structure.
Smart Images
Figure CN223690877U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air treatment device technical field especially is related to a flow path switching module and air conditioning system. BACKGROUND
[0002] The air conditioning system is provided with an electric control component for controlling the compressor, and the electric control component has a heating element with large heat generation, in order to improve the heat dissipation effect of the heating element, in the prior art, a refrigerant ring is connected in series between the indoor heat exchanger and the outdoor heat exchanger in the air conditioning system, and the electric control component is in abutment with the refrigerant ring, so that the refrigerant flow path of the air conditioning system can be used to cool the electric control component. In order to ensure the heat absorption effect of the refrigerant in the refrigerant ring, a plurality of pipelines need to be arranged in the air conditioning system to adjust the flow path switching between the indoor heat exchanger and the outdoor heat exchanger in the refrigeration or heating mode, but the pipeline connection of this scheme is relatively complex and has many welding points, resulting in low assembly efficiency and high cost. SUMMARY
[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the utility model provides a flow path switching module, which has high integration and can realize the flow path switching of the air conditioning system to ensure the cooling effect of the refrigerant ring, avoid the risk of condensation in the refrigerant ring, and simplify the pipeline connection, thereby improving the assembly efficiency and reducing the cost.
[0004] The utility model further provides an air conditioning system, which comprises the above-mentioned flow path switching module.
[0005] The flow path switching module according to the utility model embodiment comprises a module body, a first control valve, a second control valve, a third control valve and a fourth control valve. The module body has a flow channel and a first interface, a second interface, a third interface and a fourth interface communicated with the flow channel; the first control valve is arranged in the flow channel and located between the first interface and the second interface, and is used for controlling the on-off between the first interface and the second interface; the second control valve is arranged in the flow channel and located between the second interface and the third interface, and is used for controlling the on-off between the third interface and the second interface; the third control valve is arranged in the flow channel and located between the third interface and the fourth interface, and is used for controlling the on-off between the third interface and the fourth interface; and the fourth control valve is arranged in the flow channel and located between the fourth interface and the first interface, and is used for controlling the on-off between the first interface and the fourth interface.
[0006] According to the flow path switching module, the first control valve, the second control valve, the third control valve and the fourth control valve are integrated in the flow path switching module, when the flow path switching module is applied to an air conditioning system, flow path switching during refrigeration or heating can be realized, meanwhile, condensed refrigerant after throttling can be ensured to flow into the refrigerant ring, so that the heat dissipation effect of the refrigerant ring on the electric control component is ensured, and the risk of condensation in the refrigerant ring can be avoided.
[0007] According to some embodiments of the utility model, the flow channel is formed into a ring shape, the first interface, the second interface, the third interface and the fourth interface are sequentially and spacedly arranged along the flow channel, and the first control valve, the second control valve, the third control valve and the fourth control valve are sequentially and spacedly arranged along the flow channel.
[0008] In some embodiments of the utility model, the module body includes a first collecting pipe, a second collecting pipe, a first three-way pipe and a second three-way pipe, the first control valve and the second control valve are spacedly arranged in the first collecting pipe, the second interface is arranged on the first collecting pipe and located between the first control valve and the second control valve, the third control valve and the fourth control valve are spacedly arranged in the second collecting pipe, the fourth interface is arranged on the second collecting pipe and located between the third control valve and the fourth control valve, two ends of the first three-way pipe are connected to one end of the first collecting pipe and one end of the second collecting pipe respectively, the other end of the first three-way pipe forms the first interface, the first three-way pipe is located between the first control valve and the fourth control valve, two ends of the second three-way pipe are connected to the other end of the first collecting pipe and the other end of the second collecting pipe respectively, the other end of the second three-way pipe forms the third interface, and the second three-way pipe is located between the second control valve and the third control valve.
[0009] In some embodiments of the utility model, the inner diameter of the first collecting pipe is greater than the inner diameters of the first three-way pipe and the second three-way pipe, and the inner diameter of the second collecting pipe is greater than the inner diameters of the first three-way pipe and the second three-way pipe.
[0010] In some embodiments of the utility model, the first collecting pipe and the second collecting pipe each include a straight pipe section, the first control valve, the second control valve, the third control valve and the fourth control valve are arranged in the straight pipe section, and the first three-way pipe and the second three-way pipe are T-shaped three-way pipes.
[0011] According to some embodiments of the present application, the first interface and the third interface are respectively arranged at opposite ends of the module body, the second interface and the fourth interface are respectively arranged at opposite ends of the module body, and the first interface, the second interface, the third interface and the fourth interface are arranged at different end portions of the module body.
[0012] In some embodiments of the present application, two of the first interface, the second interface, the third interface and the fourth interface are oriented towards the same side of the module body, or three of the first interface, the second interface, the third interface and the fourth interface are oriented towards the same side of the module body, or all of the first interface, the second interface, the third interface and the fourth interface are oriented towards the same side of the module body.
[0013] According to some embodiments of the present application, the first control valve is a one-way valve, the first control valve only allows refrigerant to flow from the second interface to the first interface, and / or the second control valve is a one-way valve, the second control valve only allows refrigerant to flow from the third interface to the second interface, and / or the third control valve is a one-way valve, the third control valve only allows refrigerant to flow from the third interface to the fourth interface, and / or the fourth control valve is a one-way valve, the fourth control valve only allows refrigerant to flow from the fourth interface to the first interface.
[0014] The air conditioning system according to the embodiments of the present application comprises a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, the flow path switching module, a refrigerant loop and a throttling device. The compressor has an exhaust port and a return port. The four-way valve has a first port, a second port, a third port and a fourth port. The first port is in communication with one of the second port and the fourth port, and the third port is in communication with the other one of the second port and the fourth port. The exhaust port is in communication with the first port, and the return port is in communication with the third port. One end of the indoor heat exchanger is in communication with the second port. One end of the outdoor heat exchanger is in communication with the fourth port. The second interface is in communication with the other end of the indoor heat exchanger, and the fourth interface is in communication with the other end of the outdoor heat exchanger. The refrigerant loop is connected in series between the first interface and the third interface, and the throttling device is arranged between the refrigerant loop and the third interface.
[0015] According to the air conditioning system of the embodiment of the present application, the first control valve, the second control valve, the third control valve and the fourth control valve are integrated in the flow path switching module, when the flow path switching module is applied to the air conditioning system, the flow path switching during refrigeration or heating can be realized, meanwhile, the condensed refrigerant before throttling can be ensured to flow into the refrigerant ring, so that the heat dissipation effect of the refrigerant ring on the electric control components is ensured, and the risk of condensation at the refrigerant ring can be avoided. The pipeline connection structure of the air conditioning system can be simplified, the welding points between the pipelines are reduced, so that the assembly difficulty can be reduced and the assembly efficiency can be improved, and then the cost can be reduced.
[0016] In some embodiments of the present application, the refrigerant ring comprises a heat exchange plate and a refrigerant pipe, the refrigerant pipe is embedded in the heat exchange plate, the refrigerant pipe is formed in a U shape, and two ends of the refrigerant pipe are connected with the first interface and the third interface respectively.
[0017] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:
[0019] Figure 1 is a sectional view of the flow path switching module according to the embodiment of the present application;
[0020] Figure 2 is a schematic view of the air conditioning system according to the embodiment of the present application.
[0021] REFERENCE NUMERALS
[0022] 100, flow path switching module;
[0023] 1, module body; 11, flow channel; 12, first interface; 13, second interface; 14, third interface; 15, fourth interface; 16, first three-way pipe; 17, first flow collecting pipe; 18, second three-way pipe; 19, second flow collecting pipe; 191, straight pipe section;
[0024] 21, first control valve; 22, second control valve; 23, third control valve; 24, fourth control valve;
[0025] 200, air conditioning system;
[0026] 3, compressor; 31, exhaust port; 32, gas return port;
[0027] 4, four-way valve; 41, first port; 42, second port; 43, third port; 44, fourth port;
[0028] 5. Indoor heat exchanger;
[0029] 6. Outdoor heat exchanger;
[0030] 7. Refrigerant loop;
[0031] 8. Throttling device. Detailed Implementation
[0032] 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.
[0033] 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.
[0034] 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.
[0035] The flow path switching module 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
[0036] like Figure 1 As shown, the flow path switching module 100 according to an embodiment of the present utility model includes a module body 1, a first control valve 21, a second control valve 22, a third control valve 23 and a fourth control valve 24.
[0037] Specifically, such asFigure 1 As shown, the module body 1 has a flow channel 11 and a first interface 12, a second interface 13, a third interface 14 and a fourth interface 15 communicating with the flow channel 11. A first control valve 21 is arranged in the flow channel 11 between the first interface 12 and the second interface 13, for controlling the on-off between the first interface 12 and the second interface 13; a second control valve 22 is arranged in the flow channel 11 between the second interface 13 and the third interface 14, for controlling the on-off between the third interface 14 and the second interface 13; a third control valve 23 is arranged in the flow channel 11 between the third interface 14 and the fourth interface 15, for controlling the on-off between the third interface 14 and the fourth interface 15; a fourth control valve 24 is arranged in the flow channel 11 between the fourth interface 15 and the first interface 12, for controlling the on-off between the first interface 12 and the fourth interface 15.
[0038] It can be understood that, as Figure 2 As shown, the flow path switching module 100 is applied to an air conditioning system 200, which further comprises a compressor 3, a four-way valve 4, an indoor heat exchanger 5, an outdoor heat exchanger 6, a refrigerant loop 7 and a throttling device 8. The compressor 3 has a discharge port 31 and a return port 32, the four-way valve 4 has a first port 41, a second port 42, a third port 43 and a fourth port 44, the first port 41 communicates with one of the second port 42 and the fourth port 44, the third port 43 communicates with the other one of the second port 42 and the fourth port 44, the discharge port 31 communicates with the first port 41, the return port 32 communicates with the third port 43, one end of the indoor heat exchanger 5 communicates with the second port 42, one end of the outdoor heat exchanger 6 communicates with the fourth port 44, the second interface 13 communicates with the other end of the indoor heat exchanger 5, the fourth interface 15 communicates with the other end of the outdoor heat exchanger 6, the refrigerant loop 7 is connected between the first interface 12 and the third interface 14, and the throttling device 8 is arranged between the refrigerant loop 7 and the third interface 14.
[0039] The refrigerant loop 7 abuts against an electric control component such as an electric control board for controlling the compressor 3 and other components, for cooling the electric control component, so that the temperature of the electric control component can be effectively reduced, the electric control component can be effectively cooled, and overheating caused failure can be avoided, the performance and normal operation of the electric control component can be ensured, the working efficiency of the electric control component is improved, and the service life of the electric control component is prolonged.
[0040] In the specific operation process of the air conditioning system 200, as Figure 2When the air conditioning system 200 is in the cooling state, the compressor 3 compresses the refrigerant into high-temperature and high-pressure gas, and the high-pressure gaseous refrigerant flows to the outdoor heat exchanger 6 through the discharge port 31 of the compressor 3, the first port 41 and the fourth port 44 of the four-way valve 4. The outdoor heat exchanger 6 can exchange heat with the external environment, and the condensed heat is dissipated. The refrigerant flows in the outdoor heat exchanger 6 and releases heat to the external environment, thereby changing from gas to liquid, and then the high-pressure liquid refrigerant flowing out of the outdoor heat exchanger 6 enters the flow path switching module 100 from the fourth interface 15. At this time, the fourth control valve 24 controls the first interface 12 to communicate with the fourth interface 15, so that the refrigerant flows from the fourth interface 15 to the first interface 12, and the refrigerant flows through the refrigerant ring 7 and exchanges heat with the electronic control component, and then flows to the throttling device 8. The throttling device 8 can play a throttling role to reduce the pressure of the refrigerant, and then the low-pressure liquid refrigerant returns to the flow path switching module 100 from the third interface 14.
[0041] At this time, the second control valve 22 controls the second interface 13 and the third interface 14 to communicate, the first control valve 21 controls the first interface 12 to be disconnected with the second interface 13, and the third control valve 23 controls the third interface 14 to be disconnected with the fourth interface 15, so that the refrigerant flows out of the flow path switching module 100 from the second interface 13 and flows to the indoor heat exchanger 5 after passing through the second control valve 22. The indoor heat exchanger 5 can play a role of absorbing heat, and the refrigerant is heated and vaporized in the indoor heat exchanger 5, thereby changing from liquid to gas, so as to take away the heat of the airflow flowing through the surface of the indoor heat exchanger 5. The low-temperature airflow is sent into the room by the air conditioner indoor unit to achieve the purpose of cooling. At the same time, the low-pressure gaseous refrigerant flows to the second port 42 of the four-way valve 4, and flows to the return gas port 32 from the third port 43 to return to the compressor 3 for compression again, thereby forming a refrigerant circulation and realizing the cooling effect of the air conditioning system 200.
[0042] Similarly, as shown by the dotted line arrow, Figure 2As shown by the dotted arrows, when the air conditioning system 200 is in the heating state, the compressor 3 compresses the refrigerant into high-temperature and high-pressure gas. The high-pressure gaseous refrigerant flows to the indoor heat exchanger 5 through the exhaust port 31 of the compressor 3, the first port 41 and the second port 42 of the four-way valve 4. The indoor heat exchanger 5 can exchange heat with the airflow flowing through the surface of the indoor heat exchanger 5. The airflow absorbs heat, the refrigerant condenses and dissipates heat, and the high-temperature airflow is sent into the room by the air conditioner indoor unit to achieve the purpose of heating. The refrigerant flows in the indoor heat exchanger 5 and releases heat to the indoor environment, thereby changing from gas to liquid. Then the high-pressure liquid refrigerant flowing out of the indoor heat exchanger 5 enters the flow path switching module 100 from the second interface 13. At this time, the first control valve 21 controls the communication between the first interface 12 and the second interface 13, so that the refrigerant flows from the second interface 13 to the first interface 12. The refrigerant exchanges heat with the electric control component through the refrigerant ring 7, and then flows to the throttling device 8. The throttling device 8 can play a throttling role to reduce the pressure of the refrigerant. Then the low-pressure liquid refrigerant returns to the flow path switching module 100 from the third interface 14.
[0043] At this time, the third control valve 23 controls the communication between the third interface 14 and the fourth interface 15, the second control valve 22 controls the disconnection between the second interface 13 and the third interface 14, and the fourth control valve 24 controls the disconnection between the first interface 12 and the fourth interface 15. Therefore, the refrigerant flows out of the flow path switching module 100 from the fourth interface 15 and flows to the outdoor heat exchanger 6 after passing through the third control valve 23 from the third interface 14. The outdoor heat exchanger 6 can play a role of absorbing heat. The refrigerant is heated and vaporized in the outdoor heat exchanger 6, thereby changing from liquid to gas, so as to take away the heat flowing through the outdoor environment. The low-pressure gaseous refrigerant flows to the fourth port 44 of the four-way valve 4, and flows to the return gas port 32 from the third port 43 to return to the compressor 3 for compression again. Thus, a refrigerant circulation is formed to achieve the heating effect of the air conditioning system 200.
[0044] By arranging the flow path switching module 100, whether the air conditioning system 200 is in the cooling state or the heating state, the refrigerant flowing into the refrigerant ring 7 is the refrigerant condensed in the indoor heat exchanger 5 or the outdoor heat exchanger 6 and not throttled by the throttling device 8, thereby ensuring the heat dissipation effect of the electric control component and avoiding the risk of condensation in the refrigerant ring 7. Integrating the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 in the flow path switching module 100 can improve the integration, not only realize the flow path switching in the cooling or heating state, but also avoid connecting the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 through the pipelines respectively, thereby simplifying the pipeline connection structure of the air conditioning system 200, reducing the welding points between the pipelines, thereby reducing the assembly difficulty and improving the assembly efficiency, and further reducing the cost.
[0045] According to the flow path switching module 100, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are integrated in the flow path switching module 100, when the flow path switching module 100 is applied to the air conditioning system 200, the flow path switching during refrigeration or heating can be realized, meanwhile, the condensed refrigerant before throttling can flow into the refrigerant ring 7, so that the heat dissipation effect of the refrigerant ring 7 on the electric control component is ensured, and the risk of condensation at the refrigerant ring 7 can be avoided. The pipe connection structure of the air conditioning system 200 can be simplified, and the welding points between the pipes can be reduced, so that the assembly difficulty can be reduced and the assembly efficiency can be improved, and then the cost can be reduced.
[0046] In some embodiments of the utility model, as shown in Figure 1 The first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 are sequentially and spacedly arranged along the flow channel 11, and the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are sequentially and spacedly arranged along the flow channel 11. By arranging the flow channel 11 as a ring shape, the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 can be conveniently arranged, and the communication of the first interface 12 and the second interface 13, the second interface 13 and the third interface 14, the third interface 14 and the fourth interface 15 and the fourth interface 15 and the first interface 12 can be simultaneously realized without additional pipe connection, so that the pipe connection structure can be simplified and the welding points can be reduced, thereby the assembly efficiency can be improved and the cost can be reduced.
[0047] Further, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are sequentially and spacedly arranged in the annular flow channel 11, and the first control valve 21 is arranged between the first interface 12 and the second interface 13, the second control valve 22 is arranged between the second interface 13 and the third interface 14, the third control valve 23 is arranged between the third interface 14 and the fourth interface 15, and the fourth control valve 24 is arranged between the fourth interface 15 and the first interface 12, so that the structure arrangement is reasonable, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 can be conveniently controlled to switch the flow path, thereby realizing the flow path switching during refrigeration or heating. Without additional pipe connection of the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24, the pipe connection structure can be further simplified and the cost can be reduced.
[0048] In some embodiments of the utility model, as shown in Figure 1 The module body 1 is annular, and the flow channel 11 extends along the circumferential direction of the module body 1 to be annular. The module body 1 is also arranged as a ring shape, so that the shapes of the flow channel 11 and the module body 1 are unified, the processing difficulty can be reduced, thereby the processing efficiency can be improved.
[0049] In some embodiments of the utility model, as shown in Figure 1 As shown in the figure, the module body 1 includes a first manifold 17, a second manifold 19, a first tee pipe 16 and a second tee pipe 18, the first control valve 21 and the second control valve 22 are arranged in the first manifold 17, the second interface 13 is arranged on the first manifold 17 and located between the first control valve 21 and the second control valve 22, the third control valve 23 and the fourth control valve 24 are arranged in the second manifold 19, the fourth interface 15 is arranged on the second manifold 19 and located between the third control valve 23 and the fourth control valve 24, the two ends of the first tee pipe 16 are connected to one end of the first manifold 17 and one end of the second manifold 19 respectively, the other end of the first tee pipe 16 forms the first interface 12, and the first tee pipe 16 is located between the first control valve 21 and the fourth control valve 24, the two ends of the second tee pipe 18 are connected to the other end of the first manifold 17 and the other end of the second manifold 19 respectively, the other end of the second tee pipe 18 forms the third interface 14, and the second tee pipe 18 is located between the second control valve 22 and the third control valve 23.
[0050] The first tee pipe 16, the first manifold 17, the second tee pipe 18 and the second manifold 19 are sequentially connected end to end and enclose a rectangle. In this way, the first tee pipe 16, the first manifold 17, the second tee pipe 18 and the second manifold 19 can be machined respectively and then connected to form the module body 1, which can reduce the machining difficulty, and the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 can be arranged in the module body 1, thereby improving the production and machining efficiency and further reducing the production cost.
[0051] In some embodiments of the utility model, as shown in Figure 1 As shown in the figure, the inner diameter of the first manifold 17 is greater than the inner diameters of the first tee pipe 16 and the second tee pipe 18, and the inner diameter of the second manifold 19 is greater than the inner diameters of the first tee pipe 16 and the second tee pipe 18. In this way, the first control valve 21 and the second control valve 22 can be arranged inside the first manifold 17, and the third control valve 23 and the fourth control valve 24 can be arranged inside the second manifold 19, which can reduce the machining difficulty. At the same time, the first tee pipe 16 and the second tee pipe 18 are used to realize the flow of the flow channel 11, without the need for excessively large pipe diameters, which can reduce the weight of the module body 1 and reduce the cost.
[0052] In some embodiments of the utility model, as shown in Figure 1As shown, the first manifold 17 and the second manifold 19 each comprise a straight pipe section 191, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are arranged in the straight pipe section 191, and the first three-way pipe 16 and the second three-way pipe 18 are T-shaped three-way pipes. The straight pipe section 191 facilitates machining and production, and facilitates the arrangement of the first control valve 21 and the second control valve 22 inside the first manifold 17 and the arrangement of the third control valve 23 and the fourth control valve 24 inside the second manifold 19, which can further reduce the machining difficulty. The T-shaped first three-way pipe 16 can realize the communication of the first manifold 17, the second manifold 19 and the first interface 12, and the T-shaped second three-way pipe 18 can realize the communication of the first manifold 17, the second manifold 19 and the third interface 14, so that the structure design is reasonable.
[0053] In some embodiments of the utility model, as shown in Figure 1 As shown, the first interface 12 and the third interface 14 are arranged at opposite ends of the module body 1, the second interface 13 and the fourth interface 15 are arranged at opposite ends of the module body 1, and the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 are arranged at different end portions of the module body 1. In this way, the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 can be machined on the module body 1, and the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 are respectively located at different sides of the module body 1, which facilitates the connection of the pipeline of the air conditioning system 200 and can avoid mutual interference.
[0054] In some embodiments of the utility model, as shown in Figure 1 and Figure 2 As shown, two of the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 face the same side of the module body 1; or, three of the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 face the same side of the module body 1; or, the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 all face the same side of the module body 1. In this way, the flow path switching module 100 can be connected to the pipeline in the air conditioning system 200 at multiple interfaces on the same side, which can reduce the assembly difficulty, improve the flexibility and applicability of the flow path switching module 100, and further improve the assembly efficiency.
[0055] In some embodiments of the utility model, as shown in Figure 1 and Figure 2As shown, the first control valve 21 is a one-way valve, and the first control valve 21 only allows the refrigerant to flow from the second interface 13 to the first interface 12, so that when the air conditioning system 200 is in the heating state, the high-pressure liquid refrigerant flowing out of the indoor heat exchanger 5 enters the flow path switching module 100 from the second interface 13, and automatically flows to the first interface 12 through the one-way valve to flow into the refrigerant ring 7. The first control valve 21 is automatically opened or closed or cut off by the pressure difference of the refrigerant on both sides of the one-way valve, so that the automatic flow guiding of the first control valve 21 to the refrigerant can be realized, without the need to set other control structures, and the structure is simple, easy to realize and low in cost, and is not easy to be affected by power failure and the like.
[0056] In some embodiments of the utility model, as shown in Figure 1 and Figure 2 As shown, the second control valve 22 is a one-way valve, and the second control valve 22 only allows the refrigerant to flow from the third interface 14 to the second interface 13, and when the air conditioning system 200 is in the refrigeration state, the refrigerant flows through the refrigerant ring 7 and exchanges heat with the electric control component, and then flows to the third interface 14 to return to the flow path switching module 100, and automatically flows to the second interface 13 through the one-way valve to flow to the indoor heat exchanger 5. The second control valve 22 is automatically opened or closed or cut off by the pressure difference of the refrigerant on both sides of the one-way valve, so that the automatic flow guiding of the second control valve 22 to the refrigerant can be realized, without the need to set other control structures, and the structure is simple, easy to realize and low in cost, and is not easy to be affected by power failure and the like.
[0057] In some embodiments of the utility model, as shown in Figure 1 and Figure 2 As shown, the third control valve 23 is a one-way valve, and the third control valve 23 only allows the refrigerant to flow from the third interface 14 to the fourth interface 15, so that when the air conditioning system 200 is in the heating state, the refrigerant flows through the refrigerant ring 7 and exchanges heat with the electric control component, and then flows to the third interface 14 to return to the flow path switching module 100, and automatically flows to the fourth interface 15 through the one-way valve to flow to the outdoor heat exchanger 6. The third control valve 23 is automatically opened or closed or cut off by the pressure difference of the refrigerant on both sides of the one-way valve, so that the automatic flow guiding of the third control valve 23 to the refrigerant can be realized, without the need to set other control structures, and the structure is simple, easy to realize and low in cost, and is not easy to be affected by power failure and the like.
[0058] In some embodiments of the utility model, as shown in Figure 1 and Figure 2As shown, the fourth control valve 24 is a one-way valve, and the fourth control valve 24 only allows the refrigerant to flow from the fourth interface 15 to the first interface 12. When the air conditioning system 200 is in a refrigeration state, the high-pressure liquid refrigerant flowing out of the outdoor heat exchanger 6 enters the flow path switching module 100 from the fourth interface 15 and automatically flows to the first interface 12 through the one-way valve to flow into the refrigerant ring 7. The fourth control valve 24 is automatically opened or closed or blocked by the pressure difference of the refrigerant on both sides of the one-way valve, so that the automatic flow guiding of the fourth control valve 24 to the refrigerant can be realized, and other control structures do not need to be set, and the structure is simple, easy to realize, and low in cost.
[0059] The air conditioning system 200 according to the embodiments of the present application is described below.
[0060] The air conditioning system 200 according to the embodiments of the present application comprises a compressor 3, a four-way valve 4, an indoor heat exchanger 5, an outdoor heat exchanger 6, the flow path switching module 100 described above, a refrigerant ring 7, and a throttling device 8.
[0061] Specifically, as shown in Figure 1 and Figure 2 The compressor 3 has a discharge port 31 and a return port 32, the four-way valve 4 has a first port 41, a second port 42, a third port 43, and a fourth port 44, the first port 41 communicates with one of the second port 42 and the fourth port 44, the third port 43 communicates with the other one of the second port 42 and the fourth port 44, the discharge port 31 communicates with the first port 41, the return port 32 communicates with the third port 43, one end of the indoor heat exchanger 5 communicates with the second port 42, one end of the outdoor heat exchanger 6 communicates with the fourth port 44, the second interface 13 communicates with the other end of the indoor heat exchanger 5, the fourth interface 15 communicates with the other end of the outdoor heat exchanger 6, the refrigerant ring 7 is connected between the first interface 12 and the third interface 14, and the throttling device 8 is arranged between the refrigerant ring 7 and the third interface 14.
[0062] The refrigerant ring 7 abuts against an electric control component such as an electric control board in the air conditioner outdoor unit, and is used for cooling the electric control component, and the electric control component is used for controlling the compressor 3, so that the temperature of the electric control component can be effectively reduced, the electric control component can be effectively cooled, and the performance and normal operation of the electric control component can be ensured, the working efficiency of the electric control component is improved, and the service life of the electric control component is prolonged.
[0063] In the specific operation process of the air conditioning system 200, as shown in Figure 2When the air conditioning system 200 is in the cooling state, the compressor 3 compresses the refrigerant into high-temperature and high-pressure gas. The high-pressure gaseous refrigerant flows to the outdoor heat exchanger 6 through the discharge port 31 of the compressor 3, the first port 41 and the fourth port 44 of the four-way valve 4. The outdoor heat exchanger 6 can exchange heat with the external environment and condense heat dissipation. The refrigerant flows in the outdoor heat exchanger 6 and releases heat to the external environment, thereby changing from gas to liquid. Then the high-pressure liquid refrigerant flows out of the outdoor heat exchanger 6 and enters the flow path switching module 100 from the fourth interface 15. At this time, the fourth control valve 24 controls the first interface 12 to communicate with the fourth interface 15, so that the refrigerant flows from the fourth interface 15 to the first interface 12. The refrigerant flows through the refrigerant ring 7 and exchanges heat with the electronic control components, and then flows to the throttling device 8. The throttling device 8 can play a throttling role to reduce the pressure of the refrigerant. Then the low-pressure liquid refrigerant returns to the flow path switching module 100 from the third interface 14.
[0064] At this time, the second control valve 22 controls the second interface 13 and the third interface 14 to communicate, the first control valve 21 controls the first interface 12 to be disconnected with the second interface 13, and the fourth interface 15 controls the third interface 14 to be disconnected with the fourth interface 15. Thus, the refrigerant flows out of the flow path switching module 100 from the second interface 13 through the second control valve 22 and flows to the indoor heat exchanger 5. The indoor heat exchanger 5 can play a role of absorbing heat. The refrigerant is heated and vaporized in the indoor heat exchanger 5, thereby changing from liquid to gas. Thus, the heat of the airflow flowing through the surface of the indoor heat exchanger 5 is taken away. The low-temperature airflow is sent into the room by the air conditioner indoor unit to achieve the purpose of cooling. At the same time, the low-pressure gaseous refrigerant flows to the second port 42 of the four-way valve 4, and flows to the return gas port 32 from the third port 43 to return to the compressor 3 for compression again. Thus, the refrigerant circulation is formed and the cooling effect of the air conditioning system 200 is realized.
[0065] Similarly, as shown by the dotted line arrow, Figure 2As shown by the dotted arrows, when the air conditioning system 200 is in the heating state, the compressor 3 compresses the refrigerant into high-temperature and high-pressure gas. The high-pressure gaseous refrigerant flows through the exhaust port 31 of the compressor 3, the first port 41 and the second port 42 of the four-way valve 4, and flows to the indoor heat exchanger 5. The indoor heat exchanger 5 can exchange heat with the airflow flowing through the surface of the indoor heat exchanger 5. The airflow absorbs heat, the refrigerant condenses and dissipates heat, and the high-temperature airflow is sent into the room by the air conditioner indoor unit to achieve the purpose of heating. The refrigerant flows in the indoor heat exchanger 5 and releases heat to the indoor environment, thereby changing from gas to liquid. Then, the high-pressure liquid refrigerant flowing out of the indoor heat exchanger 5 enters the flow path switching module 100 from the second interface 13. At this time, the first control valve 21 controls the communication between the first interface 12 and the second interface 13, so that the refrigerant flows from the second interface 13 to the first interface 12. The refrigerant exchanges heat with the electric control component through the refrigerant ring 7, and then flows to the throttling device 8. The throttling device 8 can play a throttling role to reduce the pressure of the refrigerant. Subsequently, the low-pressure liquid refrigerant returns to the flow path switching module 100 from the third interface 14.
[0066] At this time, the third control valve 23 controls the communication between the third interface 14 and the fourth interface 15, the second control valve 22 controls the disconnection between the second interface 13 and the third interface 14, and the fourth interface 15 controls the disconnection between the third interface 14 and the fourth interface 15. Therefore, the refrigerant flows out of the flow path switching module 100 from the fourth interface 15 and flows to the outdoor heat exchanger 6 after passing through the third control valve 23 from the third interface 14. The outdoor heat exchanger 6 can play a role of absorbing heat. The refrigerant is heated and vaporized in the outdoor heat exchanger 6, thereby changing from liquid to gas, so as to take away the heat flowing through the outdoor environment. The low-pressure gaseous refrigerant flows to the fourth port 44 of the four-way valve 4, and flows to the return gas port 32 from the third port 43 to return to the compressor 3 for compression again. Thus, a refrigerant circulation is formed to achieve the heating effect of the air conditioning system 200.
[0067] By arranging the flow path switching module 100, whether the air conditioning system 200 is in the cooling state or the heating state, the refrigerant flowing into the refrigerant ring 7 is the refrigerant condensed in the indoor heat exchanger 5 or the outdoor heat exchanger 6 and not throttled by the throttling device 8, thereby ensuring the heat dissipation effect of the electric control component and avoiding the risk of condensation in the refrigerant ring 7. Meanwhile, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are all integrated in the flow path switching module 100. Not only can the flow path switching module 100 realize the flow path switching in the cooling or heating state, but also can avoid connecting the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 through the pipelines respectively. Therefore, the pipeline connection structure of the air conditioning system 200 can be simplified, the welding points between the pipelines can be reduced, the assembly difficulty can be reduced and the assembly efficiency can be improved, and the cost can be reduced.
[0068] According to the air conditioning system 200 of the embodiment of the utility model, by integrating the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 in the flow path switching module 100, when the flow path switching module 100 is applied to the air conditioning system 200, the flow path switching during refrigeration or heating can be realized, and the condensed refrigerant before throttling can be ensured to flow into the refrigerant ring 7, so that the heat dissipation effect of the refrigerant ring 7 on the electric control components is ensured, and the risk of condensation at the refrigerant ring 7 can be avoided. The pipe connection structure of the air conditioning system 200 can also be simplified, and the welding points between the pipes can be reduced, so that the assembly difficulty can be reduced and the assembly efficiency can be improved, and then the cost can be reduced.
[0069] In some embodiments of the utility model, as shown in Figure 2 The refrigerant ring 7 includes a heat exchange plate and a refrigerant pipe, the refrigerant pipe is embedded in the heat exchange plate, the refrigerant pipe is formed in a U shape, and the two ends of the refrigerant pipe are connected with the first interface 12 and the third interface 14 respectively. In this way, the flow path switching module 100 can be communicated with the refrigerant pipe, and the refrigerant can flow into the refrigerant pipe. The U-shaped refrigerant pipe is embedded in the heat exchange plate, so that the heat transfer effect between the refrigerant pipe and the heat exchange plate can be enhanced, the heat exchange plate is suitable for being attached to the electric control components, and therefore when the refrigerant flows through the refrigerant pipe, the heat of the electric control components can be taken away to the heat exchange plate and the refrigerant pipe, so that the heat dissipation effect of the electric control components can be realized.
[0070] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0071] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A flow path switching module characterized by comprising: The application relates to a module body, a first control valve, a second control valve, a third control valve and a fourth control valve. The module body has a flow channel and a first interface, a second interface, a third interface and a fourth interface which are in communication with the flow channel; The first control valve is arranged in the flow channel and located between the first interface and the second interface, and is used for controlling the on-off between the first interface and the second interface; The second control valve is arranged in the flow channel and located between the second interface and the third interface, and is used for controlling the on-off between the third interface and the second interface; The third control valve is arranged in the flow channel and located between the third interface and the fourth interface, and is used for controlling the on-off between the third interface and the fourth interface; The fourth control valve is arranged in the flow channel and located between the fourth interface and the first interface, and is used for controlling the on-off between the first interface and the fourth interface.
2. The flow path switching module according to claim 1, wherein The flow channel is formed in a ring shape, and the first interface, the second interface, the third interface and the fourth interface are sequentially and spacedly arranged along the flow channel, and the first control valve, the second control valve, the third control valve and the fourth control valve are sequentially and spacedly arranged along the flow channel.
3. The flow path switching module according to claim 2, wherein The module body comprises a first collecting pipe, a second collecting pipe, a first three-way pipe and a second three-way pipe, the first control valve and the second control valve are spacedly arranged in the first collecting pipe, the second interface is arranged on the first collecting pipe and located between the first control valve and the second control valve, the third control valve and the fourth control valve are spacedly arranged in the second collecting pipe, the fourth interface is arranged on the second collecting pipe and located between the third control valve and the fourth control valve, two ends of the first three-way pipe are connected to one end of the first collecting pipe and one end of the second collecting pipe respectively, the other end of the first three-way pipe forms the first interface, the first three-way pipe is located between the first control valve and the fourth control valve, two ends of the second three-way pipe are connected to the other end of the first collecting pipe and the other end of the second collecting pipe respectively, the other end of the second three-way pipe forms the third interface, and the second three-way pipe is located between the second control valve and the third control valve.
4. The flow path switching module according to claim 3, wherein The inner diameter of the first collecting pipe is larger than the inner diameters of the first three-way pipe and the second three-way pipe, and the inner diameter of the second collecting pipe is larger than the inner diameters of the first three-way pipe and the second three-way pipe.
5. The flow path switching module according to claim 3 or 4, characterized by The first collecting pipe and the second collecting pipe each comprise a straight pipe section, and the first control valve, the second control valve, the third control valve and the fourth control valve are arranged in the straight pipe sections, and the first three-way pipe and the second three-way pipe are T-shaped three-way pipes.
6. The flow path switching module of claim 1, wherein The first interface and the third interface are arranged at opposite ends of the module body respectively, the second interface and the fourth interface are arranged at opposite ends of the module body respectively, and the first interface, the second interface, the third interface and the fourth interface are arranged at different end portions of the module body.
7. The flow path switching module according to claim 6, wherein Two of the first interface, the second interface, the third interface and the fourth interface are towards the same side of the module body; or Three of the first interface, the second interface, the third interface and the fourth interface are towards the same side of the module body; or All of the first interface, the second interface, the third interface and the fourth interface are towards the same side of the module body.
8. The flow path switching module according to claim 1, wherein The first control valve is a one-way valve, and the first control valve only allows refrigerant to flow from the second interface to the first interface; And / or, the second control valve is a one-way valve, and the second control valve only allows refrigerant to flow from the third interface to the second interface; And / or, the third control valve is a one-way valve, and the third control valve only allows refrigerant to flow from the third interface to the fourth interface; And / or, the fourth control valve is a one-way valve, and the fourth control valve only allows refrigerant to flow from the fourth interface to the first interface.
9. An air conditioning system, characterised in that, Comprise: A compressor, the compressor having an exhaust port and a return port; A four-way valve, the four-way valve having a first port, a second port, a third port and a fourth port, the first port being in communication with one of the second port and the fourth port, the third port being in communication with the other of the second port and the fourth port, the exhaust port being in communication with the first port, the return port being in communication with the third port; An indoor heat exchanger, one end of the indoor heat exchanger being in communication with the second port; An outdoor heat exchanger, one end of the outdoor heat exchanger being in communication with the fourth port; The flow path switching module according to any one of claims 1-8, the second interface being in communication with the other end of the indoor heat exchanger, the fourth interface being in communication with the other end of the outdoor heat exchanger, A refrigerant ring, the refrigerant ring being connected in series between the first interface and the third interface; A throttling device, the throttling device being provided between the refrigerant ring and the third interface.
10. The air conditioning system of claim 9, wherein, The refrigerant ring comprises: A heat exchange plate; A refrigerant pipe, the refrigerant pipe being embedded in the heat exchange plate, the refrigerant pipe being formed in a U shape, two ends of the refrigerant pipe being connected with the first interface and the third interface respectively.