Flow path switching module and air conditioning system
By integrating the flow path switching module, the flow path switching and throttling functions of the air conditioning system are realized, which solves the problems of poor heat dissipation of electronic control components and complex piping, reduces assembly difficulty and cost, and avoids refrigerant condensation.
Patent Information
- Application Number
- CN202520026719.6
- 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
In existing air conditioning systems, the heat dissipation of electronic control components is poor, and the piping connections are complex and costly, posing a risk of refrigerant condensation.
Design a highly integrated flow path switching module that integrates the first to fourth control valves to achieve flow path switching and throttling functions, simplify pipeline connections, and avoid refrigerant condensation.
It improves the heat dissipation of electronic control components, reduces assembly difficulty and cost, simplifies pipeline connections, and avoids the risk of refrigerant condensation.
Smart Images
Figure CN223690876U_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, and a throttling device also needs to be arranged between the indoor heat exchanger and the outdoor heat exchanger, which leads to complex pipeline connection and many welding points, resulting in low assembly efficiency and high cost. SUMMARY
[0003] The utility model aims at 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, can realize flow path switching and throttling function of the air conditioning system, can avoid the risk of condensation at the refrigerant ring, and can 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 and throttling; 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 throttling; 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, and the throttling function is integrated on the second control valve and the third control valve, when the flow path switching module is applied to the air conditioning system, the flow path switching during refrigeration or heating can be realized, so that the refrigerant flowing into the refrigerant ring is the refrigerant after condensation and before throttling, 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, and the throttling of the refrigerant can also be realized, so that the refrigeration or heating cycle of the air conditioning system is ensured. The pipe connection structure of the air conditioning system can also be simplified, the welding points between the pipes are reduced, so that the assembly difficulty can be reduced and the assembly efficiency can be improved, and then the cost can be reduced.
[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
[0013] 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
[0014] 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.
[0015] 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 throttling 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 throttling 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.
[0016] 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 and a refrigerant loop. The compressor has a discharge 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, the third port is in communication with the other one of the second port and the fourth port, the discharge 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, the fourth interface is in communication with the other end of the outdoor heat exchanger, and the refrigerant loop is connected in series between the first interface and the third interface.
[0017] 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, and the throttling function is integrated on the second control valve and the third control valve, when the flow path switching module is applied to the air conditioning system, the flow path switching during refrigeration or heating can be realized, so as to ensure that the refrigerant flowing into the refrigerant ring is the refrigerant after condensation and before throttling, thereby ensuring the heat dissipation effect of the refrigerant ring on the electric control components, and the risk of condensation of the refrigerant ring can be avoided, and the throttling of the refrigerant can also be realized, so as to ensure the refrigeration or heating cycle of the air conditioning system. The pipeline connection structure of the air conditioning system can also be simplified, and 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.
[0018] 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 the two ends of the refrigerant pipe are connected with the first interface and the third interface respectively.
[0019] The additional aspects and advantages of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0020] 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, taken in conjunction with the accompanying drawings, in which:
[0021] Figure 1 is a sectional view of the flow path switching module according to the embodiment of the present application;
[0022] Figure 2 is a schematic view of the air conditioning system according to the embodiment of the present application.
[0023] REFERENCE NUMERALS:
[0024] 100, flow path switching module;
[0025] 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;
[0026] 21, first control valve; 22, second control valve; 23, third control valve; 24, fourth control valve;
[0027] 200, air conditioning system;
[0028] 3, compressor; 31, exhaust port; 32, gas inlet;
[0029] 4. Four-way valve; 41. First port; 42. Second port; 43. Third port; 44. Fourth port;
[0030] 5. Indoor heat exchanger;
[0031] 6. Outdoor heat exchanger;
[0032] 7. Refrigerant loop. Detailed Implementation
[0033] 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.
[0034] 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.
[0035] 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.
[0036] The flow path switching module 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
[0037] 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.
[0038] Specifically, as shown in Figure 1 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 and for throttling; 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 and for throttling; 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.
[0039] It can be understood that, as shown in Figure 2 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 and a refrigerant ring 7. 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, and the refrigerant ring 7 is connected between the first interface 12 and the third interface 14.
[0040] The refrigerant ring 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 by 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.
[0041] In the specific operation process of the air conditioning system 200, as shown in Figure 2As shown by the solid arrow, when the air conditioning system 200 is in cooling mode, the compressor 3 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant flows through the compressor 3's exhaust port 31, the first port 41 of the four-way valve 4, and the fourth port 44 to the outdoor heat exchanger 6. The outdoor heat exchanger 6 can exchange heat with the external environment and dissipate heat through condensation. The refrigerant flows within the outdoor heat exchanger 6 and releases heat to the external environment, thus changing from a gaseous state to a liquid state. Then, the high-pressure liquid refrigerant flowing out of the outdoor heat exchanger 6 enters the flow path switching module 100 through the fourth port 15. At this time, the fourth control valve 24 controls the connection between the first port 12 and the fourth port 15, causing the refrigerant to flow from the fourth port 15 to the first port 12. The refrigerant flows from the first port 12 through the refrigerant ring 7 to exchange heat with the electronic control components, and then flows to the third port 14 back to the flow path switching module 100.
[0042] At this time, the second control valve 22 controls the connection between the second port 13 and the third port 14, the first control valve 21 controls the disconnection between the first port 12 and the second port 13, and the third control valve 23 controls the disconnection between the third port 14 and the fourth port 15. Thus, the refrigerant flows from the third port 14 through the second control valve 22, where it is throttled and depressurized. The low-pressure liquid refrigerant flows out of the second port 13, through the flow path switching module 100, and towards the indoor heat exchanger 5. The indoor heat exchanger 5 absorbs heat, and the refrigerant vaporizes within it, changing from liquid to gas. This vaporization carries away the heat from the airflow passing over the surface of the indoor heat exchanger 5, and the low-temperature airflow is then delivered into the room by the indoor unit to achieve cooling. Simultaneously, the low-pressure gaseous refrigerant flows to the second port 42 of the four-way valve 4 and then from the third port 43 to the return port 32 to return to the compressor 3 for further compression. This forms a refrigerant cycle and achieves the cooling effect of the air conditioning system 200.
[0043] Similarly, such as Figure 2 As shown by the dashed arrow, when the air conditioning system 200 is in heating mode, the compressor 3 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant flows through the compressor 3's exhaust port 31, the first port 41 of the four-way valve 4, and the second port 42 to the indoor heat exchanger 5. The indoor heat exchanger 5 can exchange heat with the airflow flowing over its surface. The airflow absorbs heat, the refrigerant condenses and dissipates heat, and the high-temperature airflow is sent into the room by the indoor unit to achieve the purpose of heating. The refrigerant flows within the indoor heat exchanger 5 and releases heat into the indoor environment, thus changing from a gaseous state to a liquid state. Then, the high-pressure liquid refrigerant flowing out of the indoor heat exchanger 5 enters the flow path switching module 100 through the second interface 13. At this time, the first control valve 21 controls the connection 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 flows from the first interface 12 through the refrigerant ring 7 to exchange heat with the electronic control components, and then flows to the third interface 14 back to the flow path switching module 100.
[0044] At this time, the third control valve 23 controls the third port 14 and the fourth port 15 to be communicated, the second control valve 22 controls the second port 13 and the third port 14 to be disconnected, and the fourth control valve 24 controls the first port 12 and the fourth port 15 to be disconnected, so that the refrigerant flows out of the flow path switching module 100 from the fourth port 15 and flows to the outdoor heat exchanger 6 through the third port 14 throttled by the third control valve 23. The outdoor heat exchanger 6 can absorb heat, and the refrigerant is gasified in the outdoor heat exchanger 6, changes from liquid to gas, and thus takes away heat from the outdoor environment. The low-pressure gaseous refrigerant flows to the fourth port 44 of the four-way valve 4 and then flows to the return gas port 32 from the third port 43 to return to the compressor 3 for compression again, so as to form a refrigerant circulation and realize the heating effect of the air conditioning system 200.
[0045] By arranging the flow path switching module 100, whether the air conditioning system 200 is in a cooling state or a 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, so as to ensure the heat dissipation effect of the electric control component and avoid the risk of condensation in the refrigerant ring 7. 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, which can improve the integration, realize the flow path switching in the cooling or heating state, integrate the throttling function in the flow path switching module 100, avoid connecting the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 through pipes, simplify the pipe connection structure of the air conditioning system 200, reduce the welding points between the pipes, and thus reduce the assembly difficulty and improve the assembly efficiency, and further reduce the cost.
[0046] According to the flow path switching module 100 of the embodiment of the utility model, 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, and the throttling function is integrated on the second control valve 22 and the third control valve 23. When the flow path switching module 100 is applied to the air conditioning system 200, the flow path switching in the cooling or heating state can be realized, so as to ensure that the refrigerant flowing into the refrigerant ring 7 is the refrigerant condensed and throttled, thereby ensuring the heat dissipation effect of the refrigerant ring 7 on the electric control component and avoiding the risk of condensation in the refrigerant ring 7. The throttling of the refrigerant can also be realized to ensure the cooling or heating circulation of the air conditioning system 200. The pipe connection structure of the air conditioning system 200 can also be simplified, the welding points between the pipes can be reduced, the assembly difficulty can be reduced and the assembly efficiency can be improved, and thus the cost can be reduced.
[0047] In some embodiments of the utility model, as shown in Figure 1As shown, the flow channel 11 is formed in a ring shape, 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 in a ring shape, the first interface 12, the second interface 13, the third interface 14 and the fourth interface 15 are facilitated to be 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 is simultaneously realized, without the need of additionally connecting pipelines, so that the pipeline 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.
[0048] 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 ring-shaped 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, and the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are facilitated to control the on-off of the flow channel, thereby realizing the flow channel switching during refrigeration or heating. Without the need of additionally arranging pipelines to connect the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24, the pipeline connection structure can be further simplified and the cost can be reduced.
[0049] In some embodiments of the present application, as shown in Figure 1 As shown, the module body 1 is in a ring shape, and the flow channel 11 extends in a ring shape along the circumferential direction of the module body 1. By arranging the module body 1 in a ring shape, the shapes of the flow channel 11 and the module body 1 are unified, thereby facilitating to reduce the processing difficulty, so as to be beneficial to improve the processing efficiency.
[0050] In some embodiments of the present application, as shown in Figure 1As shown, the module body 1 comprises 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 in a spaced manner, 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 in a spaced manner, 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, 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, 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.
[0051] 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 facilitate the arrangement of the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 in the module body 1, thereby improving the production and machining efficiency and further reducing the production cost.
[0052] In some embodiments of the utility model, as shown in Figure 1 As shown, 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, and do not need to be too large in diameter, which can reduce the weight of the module body 1 and reduce the cost.
[0053] 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.
[0054] 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 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.
[0055] 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.
[0056] 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 a 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 refrigerant by the first control valve 21 can be realized, without the need to set other control structures, and the structure is simple, easy to realize, and low in cost.
[0057] 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 throttling 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 a cooling state, the refrigerant flows through the refrigerant ring 7 and the electric control component to exchange heat, and then flows to the third interface 14 to return to the flow path switching module 100, and is throttled and automatically flows to the second interface 13 through the one-way throttling 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 throttling valve, so that the automatic flow guiding of the refrigerant by the second control valve 22 can be realized, and the structure is simple, without the need to set other control structures, and the structure is not easy to be affected by power failure and the like. At the same time, the throttling and pressure reduction of the refrigerant can also be realized, the integration of the second control valve 22 can be improved, and thus the assembly efficiency is improved and the cost is reduced.
[0058] 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 throttling 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 a heating state, the refrigerant flows through the refrigerant ring 7 and the electric control component to exchange heat, and then flows to the third interface 14 to return to the flow path switching module 100, and is throttled and automatically flows to the fourth interface 15 through the one-way throttling 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 throttling valve, so that the automatic flow guiding of the refrigerant by the third control valve 23 can be realized, and the structure is simple, without the need to set other control structures, and the structure is not easy to be affected by power failure and the like. At the same time, the throttling and pressure reduction of the refrigerant can also be realized, the integration of the third control valve 23 can be improved, and thus the assembly efficiency is improved and the cost is reduced.
[0059] 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 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 fourth control valve 24 to the refrigerant can be realized, and other control structures do not need to be set, which is not easy to be affected by power failure and the like, and has the advantages of simple structure, easy implementation, low cost and the like.
[0060] The air conditioning system 200 according to the embodiment of the present application is described below.
[0061] The air conditioning system 200 according to the embodiment 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 and the refrigerant ring 7.
[0062] 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 is in communication with one of the second port 42 and the fourth port 44, the third port 43 is in communication with the other one of the second port 42 and the fourth port 44, the discharge port 31 is in communication with the first port 41, the return port 32 is in communication with the third port 43, one end of the indoor heat exchanger 5 is in communication with the second port 42, one end of the outdoor heat exchanger 6 is in communication with the fourth port 44, the second interface 13 is in communication with the other end of the indoor heat exchanger 5, the fourth interface 15 is in communication with the other end of the outdoor heat exchanger 6, and the refrigerant ring 7 is connected between the first interface 12 and the third interface 14.
[0063] The refrigerant ring 7 is in abutment with 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.
[0064] In the specific operation process of the air conditioning system 200, as shown in Figure 2As shown by the solid arrow, when the air conditioning system 200 is in cooling mode, the compressor 3 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant flows through the compressor 3's exhaust port 31, the first port 41 of the four-way valve 4, and the fourth port 44 to the outdoor heat exchanger 6. The outdoor heat exchanger 6 can exchange heat with the external environment and dissipate heat through condensation. The refrigerant flows within the outdoor heat exchanger 6 and releases heat to the external environment, thus changing from a gaseous state to a liquid state. Then, the high-pressure liquid refrigerant flowing out of the outdoor heat exchanger 6 enters the flow path switching module 100 through the fourth port 15. At this time, the fourth control valve 24 controls the connection between the first port 12 and the fourth port 15, causing the refrigerant to flow from the fourth port 15 to the first port 12. The refrigerant flows from the first port 12 through the refrigerant ring 7 to exchange heat with the electronic control components, and then flows to the third port 14 back to the flow path switching module 100.
[0065] At this time, the second control valve 22 controls the connection between the second port 13 and the third port 14, the first control valve 21 controls the disconnection between the first port 12 and the second port 13, and the fourth port 15 controls the disconnection between the third port 14 and the fourth port 15. Thus, the refrigerant flows from the third port 14 through the second control valve 22, where it is throttled and depressurized. The low-pressure liquid refrigerant flows out of the second port 13, through the flow path switching module 100, and towards the indoor heat exchanger 5. The indoor heat exchanger 5 absorbs heat, and the refrigerant vaporizes within it, changing from liquid to gas. This vaporization carries away the heat from the airflow passing over the surface of the indoor heat exchanger 5, and the low-temperature airflow is then delivered into the room by the indoor unit to achieve cooling. Simultaneously, the low-pressure gaseous refrigerant flows to the second port 42 of the four-way valve 4 and from the third port 43 to the return port 32 to return to the compressor 3 for further compression, thus forming a refrigerant cycle and achieving the cooling effect of the air conditioning system 200.
[0066] Similarly, such as Figure 2 As shown by the dashed arrow, when the air conditioning system 200 is in heating mode, the compressor 3 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant flows through the compressor 3's exhaust port 31, the first port 41 of the four-way valve 4, and the second port 42 to the indoor heat exchanger 5. The indoor heat exchanger 5 can exchange heat with the airflow flowing over its surface. The airflow absorbs heat, the refrigerant condenses and dissipates heat, and the high-temperature airflow is sent into the room by the indoor unit to achieve the purpose of heating. The refrigerant flows within the indoor heat exchanger 5 and releases heat into the indoor environment, thus changing from a gaseous state to a liquid state. Then, the high-pressure liquid refrigerant flowing out of the indoor heat exchanger 5 enters the flow path switching module 100 through the second interface 13. At this time, the first control valve 21 controls the connection 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 flows from the first interface 12 through the refrigerant ring 7 to exchange heat with the electronic control components, and then flows to the third interface 14 back to the flow path switching module 100.
[0067] At this time, the third control valve 23 controls the third port 14 and the fourth port 15 to be communicated, the second control valve 22 controls the second port 13 and the third port 14 to be disconnected, and the fourth port 15 controls the third port 14 and the fourth port 15 to be disconnected, so that the refrigerant flows out of the flow path switching module 100 from the third port 14 through the third control valve 23 throttling and depressurizing, and flows to the outdoor heat exchanger 6. The outdoor heat exchanger 6 can play a role of absorbing heat, and the refrigerant is gasified in the outdoor heat exchanger 6, changes from liquid state to gaseous state, thereby taking away heat flowing through the outdoor environment, and the low-pressure gaseous refrigerant flows to the fourth port 44 of the four-way valve 4 and then 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 heating effect of the air conditioning system 200.
[0068] By arranging the flow path switching module 100, whether the air conditioning system 200 is in a refrigeration state or a 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, 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, which not only realizes the flow path switching in the refrigeration or heating state, but also integrates the throttling function in the flow path switching module 100, thereby avoiding connecting the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 through pipelines, 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.
[0069] 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, and integrating the throttling function on the second control valve 22 and the third control valve 23, when the flow path switching module 100 is applied to the air conditioning system 200, the flow path switching in the refrigeration or heating state can be realized, so that the refrigerant flowing into the refrigerant ring 7 is the refrigerant condensed and throttled, thereby ensuring the heat dissipation effect of the refrigerant ring 7 on the electric control component and avoiding the risk of condensation in the refrigerant ring 7, and the throttling of the refrigerant can also be realized, thereby ensuring the refrigeration or heating circulation of the air conditioning system 200. The pipeline connection structure of the air conditioning system 200 can also be simplified, the welding points between the pipelines can be reduced, thereby reducing the assembly difficulty and improving the assembly efficiency, and further reducing the cost.
[0070] In some embodiments of the utility model, as shown in Figure 2As shown, 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 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, which can enhance the heat transfer effect between the refrigerant pipe and the heat exchange plate, and the heat exchange plate is suitable for being attached to the electric control component, so that when the refrigerant flows through the refrigerant pipe, the heat generated by the electric control component can be taken away to the heat exchange plate and the refrigerant pipe, so that the heat dissipation effect of the electric control component can be achieved.
[0071] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative 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 present application. In the present specification, the illustrative 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.
[0072] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application 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 communicating 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 and throttling; 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 throttling; 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, 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, 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 throttling 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 throttling 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 has a discharge port and a return port; A four-way valve, the four-way valve has a first port, a second port, a third port and a fourth port, the first port communicates with one of the second port and the fourth port, the third port communicates with the other one of the second port and the fourth port, the discharge port and the first port communicate, the return port and the third port communicate; An indoor heat exchanger, one end of the indoor heat exchanger communicates with the second port; An outdoor heat exchanger, one end of the outdoor heat exchanger communicates with the fourth port; The flow path switching module according to any one of claims 1-8, the second interface communicates with the other end of the indoor heat exchanger, the fourth interface communicates with the other end of the outdoor heat exchanger, A refrigerant ring, the refrigerant ring is connected in series between the first interface 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 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.