CN216742991U - Check valve and heat exchanger - Google Patents

Abstract

The present application relates to the technical field of fluid conveying, and discloses a one-way valve comprising: a valve body having a valve seat and a limiting member, two ends of the valve body are provided with a plurality of communication ports; a diverting component arranged on the valve seat; a channel guide of the valve body When connected, the diverter assembly can evenly divert the fluid to different communication ports. By arranging the valve body with multiple shunt structures with plug-in function, one check valve can be used instead of multiple check valves, saving installation space; The refrigerant flowing into the valve is in a gas-liquid two-phase state, and the diverting component can make the refrigerant evenly and stably divert to different diversion structures to ensure the consistency of the flow of different diversion structures. The application also discloses a heat exchanger.

Description

Check valve and heat exchanger

technical field

The present application relates to the technical field of fluid transportation, for example, to a one-way valve and a heat exchanger.

Background technique

At present, the one-way valve has the function of forward flow and reverse cut-off, and is widely used in refrigeration systems. However, when the cooling or heating is running, the function of the heat exchanger is different, and the demand for the flow splitting method is different, and the one-way valve is also An important component in the realization of variable shunt technology. Both the inlet and outlet of the one-way valve are single-channel structures. In order to realize variable shunt in both the inlet and outlet of the heat exchanger, usually the inlet and outlet are designed with The separate check valve has high cost requirements and wastes space.

The prior art discloses a one-way valve, which includes a valve body, a valve core body and a valve port, a valve core sleeve is arranged in the valve body, the valve core body slides in a sliding cavity of the valve core sleeve, and an end of the sliding cavity is provided. The valve body is provided with a valve port, one end of the valve body is provided with a first port and a third port in communication, and the other end is provided with a second port and a fourth port in communication.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

During the use of the existing multi-way one-way valve, since the fluid is not evenly distributed to different ports, the phenomenon of uneven distribution of flow occurs at different ports of the one-way valve.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

The embodiment of the present disclosure provides a one-way valve, so that the refrigerant can be split to different split structures uniformly and stably, so as to ensure the consistency of the flow of different split structures.

In some embodiments, the one-way valve includes: a valve body having a valve seat and a limiting member, two ends of the valve body are provided with a plurality of communication ports; a diverting component, disposed on the valve seat; when the channel of the valve body is connected, The diverter assembly can evenly divert the fluid to different communication ports.

In some embodiments, the heat exchanger includes the one-way valve described above.

The one-way valve and the heat exchanger provided by the embodiments of the present disclosure can achieve the following technical effects:

In the embodiment of the present disclosure, by arranging the valve body with multiple shunt structures with plug-in function, one check valve can be used instead of multiple check valves, saving installation space; When used on the device, the refrigerant flowing through the one-way valve is in a gas-liquid two-phase state, and the diverter component can make the refrigerant evenly and stably divert to different diversion structures to ensure the consistency of the flow of different diversion structures.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

1 is a schematic structural diagram of a one-way valve cut-off provided by an embodiment of the present disclosure;

2 is a schematic structural diagram of a one-way valve conducting according to an embodiment of the present disclosure;

3 is a schematic structural diagram of another one-way valve cut-off provided by an embodiment of the present disclosure;

4 is a schematic structural diagram of another one-way valve conducting conduction provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram 1 of a shunt assembly provided by an embodiment of the present disclosure;

FIG. 6 is a second structural schematic diagram of a flow shunt assembly provided by an embodiment of the present disclosure;

FIG. 7 is a third structural schematic diagram of a flow shunt assembly provided by an embodiment of the present disclosure;

8 is a schematic structural diagram 1 of a heat exchanger provided by an embodiment of the present disclosure;

FIG. 9 is a second structural schematic diagram of a heat exchanger provided by an embodiment of the present disclosure.

Reference number:

100: gas collecting pipe; 101: first nozzle; 102: second nozzle; 103: third nozzle; 104: first general opening; 105: second general opening;

200: the first heat exchange branch;

300: the second heat exchange branch;

400: the third heat exchange branch;

500: the fourth heat exchange branch;

600: shunt pipeline; 601: first shunt branch; 602: second shunt branch; 603: third shunt branch; 604: fourth shunt branch;

701: the first shunt element; 702: the second shunt element; 703: the third shunt element;

10: valve body; 11: first communication port; 12: second communication port; 13: third communication port; 14: fourth communication port; 15: retaining edge;

20: valve seat; 21: valve port;

30: limit piece;

40: shunt assembly; 41: valve core; 42: mixing part; 43: shaft; 44: guide plate; 45: magnetic part; 46: sealing gasket.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the disclosure. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the purposes of implementing the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientations shown in the drawings or Positional relationship. These terms are primarily used to better describe the embodiments of the present disclosure and embodiments thereof, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation. In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific situations.

In addition, the terms "arranged", "connected" and "fixed" should be construed broadly. For example, "connection" can be a fixed connection, a detachable connection, or a unitary construction; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly through an intermediary, or two devices, elements or Internal connectivity between components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In this embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and/or B, means: A or B, or, A and B three relationships.

It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments may be combined with each other in the case of no conflict.

8 to 9 , an embodiment of the present disclosure provides a heat exchanger including: a gas header 100, a first heat exchange passage, a second heat exchange passage, a third heat exchange branch 400, and a fourth heat exchange branch 500 and shunt line 600. The first heat exchange passage includes one or more first heat exchange branches 200, wherein the first end of the first heat exchange branch 200 is connected to the first nozzle 101 of the gas collecting pipe 100, and the first heat exchange branch 200 The second end of the second heat exchange branch is connected to the first flow dividing element 701; the second heat exchange passage includes one or more second heat exchange branches 300, wherein the first end of the second heat exchange branch 300 is connected to the second pipe of the gas collecting pipe port 102, the second end of the second heat exchange branch 300 is connected to the first shunt element 701; the first end of the third heat exchange branch 400 is connected to the second shunt element 702, and the third heat exchange branch 400 The second end is connected to the first splitting element 701; the first end of the fourth heat exchange branch 500 is connected to the second splitting element 702, and the second end of the fourth heat exchange branch 500 is connected to the third splitting element 703; Pipe 600, the first end is connected in parallel with the second diverting element 702 and the third diverting element 703, and the second end is connected in parallel with the third nozzle 103 of the gas collecting pipe 100 and the first diverting element 701; the one-way valve 10 is provided with The conduction direction of the one-way valve 10 is defined as flowing from the first end of the branch pipe 600 to the second end of the branch pipe 600 .

In the heat exchanger involved in the embodiments of the present disclosure, through the arrangement of the shunt pipeline and the one-way valve, the heat exchanger can transport the refrigerant in different flow paths in different air conditioning modes, so that the heat exchange can be achieved. The appliance achieves the best performance of cooling and heating at the same time. Most of the examples provided in this application are examples when the heat exchanger is used as an outdoor heat exchanger.

In the downward heating flow, the low-temperature and low-pressure refrigerant enters the first diverting element 701 from the second general port 105 , and enters the fourth heat exchange branch 500 and the first end of the diverting pipeline 600 respectively after diverting, and enters the diverting pipeline 600 The refrigerant passes through the one-way valve 10, and the fourth heat exchange branch 500 enters the heat exchanger body for heat exchange. At this time, the conduction direction of the one-way valve 10 is from the first end of the shunt pipe 600 to the second end of the shunt pipe 600. The refrigerant passing through the one-way valve 10 enters the first shunt element 701, and then enters the first shunt element 701 after being shunted. A heat exchange passage, a second heat exchange passage and a third heat exchange branch 400 enter the heat exchange body respectively for heat exchange. Among them, after the heat exchange between the fourth heat exchange branch 500 and the third heat exchange branch 400 is completed, the confluence enters the second diverter element 702, and then enters the gas header 100 through the one-way valve 10; After the heat exchange between the heat passage and the third heat exchange branch 400 is completed, it enters the gas collecting pipe 100 ; It can be seen that, in the heat exchanger provided by the embodiment of the present disclosure, in the downward direction of the heating flow, due to the arrangement of the shunt pipeline 600 and the one-way valve 10, the number of the downward heat exchange branches of the heating flow is increased, the pressure drop is greatly reduced, and the The system pressure enables the refrigerant to fully exchange heat with the surrounding environment, improving the heating efficiency of the air conditioner.

In the downward direction of the cooling flow, the high-temperature and high-pressure refrigerant enters the gas header 100 from the first general port 104, and enters the first heat exchange passage and the second heat exchange passage respectively after being split, and enters the heat exchange body respectively. A shunt element 701 . At this time, the conduction direction of the one-way valve 10 is from the first end of the shunt pipe 600 to the second end of the shunt pipe 600, and then enters the third heat exchange branch 400 after confluence, and enters the heat exchange body after heat exchange, Enter the second splitting element 702 , enter the fourth heat exchange branch 500 , enter the first splitting element 701 , and flow out from the second general port 105 . It can be seen that, in the heat exchanger provided in the embodiment of the present disclosure, in the downward direction of the cooling flow, due to the arrangement of the shunt pipeline 600 and the one-way valve 10, the number of heat exchange branches in the downward flow of the cooling flow is reduced, the circulation of the refrigerant is accelerated, and the The heat transfer coefficient enables the refrigerant to fully exchange heat with the surrounding environment, improving the cooling efficiency of the air conditioner.

With reference to FIG. 1 , an embodiment of the present disclosure provides a one-way valve, including a valve body 10 and a diverter assembly 40 , wherein the valve body 10 has a valve seat 20 and a limiting member 30 , and two ends of the valve body 10 have a plurality of The communication port; the flow distribution assembly 40 is arranged on the valve seat 20; when the channel of the valve body 10 is connected, the flow distribution assembly 40 can evenly distribute the refrigerant to different communication ports.

With the one-way valve provided by the embodiment of the present disclosure, by setting the valve body 10 with a plurality of shunt structures with a plug-in function, one one-way valve can be used instead of multiple one-way valves, saving installation space; in the valve body 10 The splitter assembly 40 is provided. When used on the heat exchanger, the refrigerant flowing through the one-way valve is in a gas-liquid two-phase state. The splitter assembly 40 can make the refrigerant evenly and stably split to different split structures to ensure different splits. Consistency of structural flow.

In this embodiment, the one-way valve includes a tubular valve body 10 , the inside of the valve body 10 is a cavity with a cylindrical wall, a valve seat 20 and a limiting member 30 , and the valve seat 20 is disposed in the cavity of the valve body 10 . Inside the body, the valve seat 20 has a valve port 21 for the inflow of the refrigerant. The limiting member 30 is disposed in the valve seat 20 . In this way, the valve seat 20 and the limiting member 30 form a limiting space.

In this embodiment, a valve core 41 disposed in the limiting space is further included. The valve core 41 has a first end and a second end, the first end is a plug with a conical structure, and the second end is a sliding portion. The valve seat 20 is provided with a valve port 21 , and the plug of the conical structure is facing the valve port 21 ; When the refrigerant is flowing in from the valve seat 20 side, the refrigerant will push the plug of the valve core 41, so that the refrigerant can flow in from the valve port 21 of the valve seat 20, thereby opening the channel of the one-way valve; when the refrigerant flows from the limit When the side of the valve 30 flows in, the refrigerant will push the valve core 41, so that the plug of the valve core 41 can be inserted into the valve port 21 of the valve seat 20, thereby closing the channel of the one-way valve.

In this embodiment, both ends of the valve body 10 have a plurality of communication ports. Optionally, both ends of the valve body 10 have at least two communication ports with a plug-in function. In this way, the valve body 10 can be connected to a plurality of pipelines. When a plurality of pipelines flow in from the valve seat 20 side, the valve core 41 is pushed open by the pushing force of the refrigerant, so that the refrigerant can flow in from the valve port 21 of the valve seat 20, and then communicates from the multiple connections of the limiting member 30. Mouth out. Multiple pipelines at the first end of the valve body 10 can be converged, and multiple pipelines at the second end of the valve body 10 flow out.

Since there are multiple communication ports, in order to make the channel of the one-way valve conduct, the distribution of the refrigerant in each communication port is uniform and stable, the valve seat 20 is further provided with a flow dividing assembly 40 .

With reference to FIGS. 1 and 2 , in some embodiments, the flow splitting assembly 40 includes: a flow mixing member 42 disposed outside the valve seat 20 . The refrigerant can be evenly and stably distributed to each communication port.

In this embodiment, the flow splitting assembly 40 includes a flow mixing member 42, and the flow mixing member 42 can mix the refrigerants flowing in from different pipelines together, and distribute and flow out together.

In this embodiment, the valve body 10 is provided with a valve seat 20 and a limiting member 30 , and the flow mixing member 42 may include a filter screen, wherein the flow mixing member 42 is disposed outside the valve seat 20 , and is connected with the limiting member on the valve seat 20 . 30 has a certain distance, that is, a mixing space is formed. When multiple pipelines flow in from the valve seat 20 side, the valve core 41 is pushed open by the pushing force of the refrigerant, so that the refrigerant can flow in from the valve port 21 of the valve seat 20, and the refrigerant passes through the valve seat 20 and the limiter 30 After that, it will pass through the flow mixing member 42, and the flow mixing member 42 will mix the inflowing refrigerant. When the refrigerant in the flow mixing member 42 reaches a certain volume, it will flow out from the flow mixing member 42, thereby realizing that the first end of the valve body 10 is more than The pipelines converge, and multiple pipelines flow out from the second end of the valve body 10 .

In some embodiments, the flow mixing member 42 includes a mesh cover with a semicircular structure, which is buckled on the outside of the valve seat 20 . The refrigerants flowing in from different pipelines can be mixed together and distributed out together.

In this embodiment, the flow mixing member 42 may also include a mesh cover with a semicircular structure, which is buckled on the outer side of the limiting member 30 , that is, arranged on the outer side of the valve seat 20 . The mesh cover of the semicircular structure and the limiter 30 form a mixing space, so that the passing refrigerant is merged into the mixing space, and through its mixing effect, the refrigerant has uniformity and stability, and ensures the consistency of the flow of different communication ports. .

3 to 7 , in some embodiments, the diverter assembly 40 includes: a shaft 43 , which is arranged in the valve seat 20 ; two guide pieces 44 , which are movably connected by the shaft 43 ; two guide pieces 44 In the first posture, the two guide pieces 44 are flat plates, which can close the valve port 21 of the valve seat 20; the two guide pieces 44 are in the second posture, and the two guide pieces 44 are arranged at a set angle, which can open the valve seat 20 valve port 21. If the valve port 21 is small, the height of the entire valve seat 20 can also be reduced.

In this embodiment, the diverter assembly 40 may further include a structure composed of a shaft 43 and two guide pieces 44 . With this structure, the functions of the existing valve core 41 and the flow mixing member 42 can be replaced. And the shunt is relatively independent.

In this embodiment, the valve body 10 is provided with a valve seat 20 , a limiting member 30 and a flow splitting assembly 40 , and the flow splitting assembly 40 is arranged in the limiting space formed by the valve seat 20 and the limiting member 30 . At this time, the flow splitting The assembly 40 includes a shaft 43 fixedly installed in the valve seat 20 , and the shaft 43 is located in the middle of the valve seat 20 . Optionally, the flow rates of different flow paths can be different according to different usage requirements, and the shaft 43 can also be set at a position biased towards the middle of the valve seat 20 . However, the two guide pieces 44 also need to be designed in different sizes and shapes according to the above-mentioned usage requirements.

In this embodiment, the diverter assembly 40 includes a shaft rod 43 and two guide pieces 44 . The shaft rod 43 and the two guide pieces 44 are arranged in the valve seat 20 and have a certain relationship with the limiting member 30 on the valve seat 20 . Distance, the valve body 10 is connected with a plurality of pipelines. When a plurality of pipelines flow in from the valve seat 20 side, the two guide vanes 44 are pushed open by the pushing force of the refrigerant, so that the refrigerant can flow in from the valve port 21 of the valve seat 20. At this time, the two guide vanes 44 The valve seat 20 has been divided into two channels. into different communication ports. In this way, multiple pipelines at the first end of the valve body 10 are converged, and multiple pipelines at the second end of the valve body 10 flow out.

In this embodiment, the longest length of the two guide pieces 44 is L ₁ , and the relative distance between the limiting member 30 and the shaft 43 is L ₂ , where L ₂ is greater than L ₁ . When the sheet 44 is pushed open by the pushing force of the refrigerant, the guide sheet 44 will not contact the limiting member 30 , which can effectively prevent the limiting member 30 from being damaged. At the same time, the arrangement of the limiting member 30 can also prevent the guide piece 44 from being separated from the limiting space formed by the valve seat 20 and the limiting member 30 .

Among them, the two guide pieces 44 are hinged by the shaft rod 43. When the two guide pieces 44 are in the first posture, the two guide pieces 44 are flat plates, which can close the valve port 21 of the valve seat 20; When the 44 is in the second posture, the two guide pieces 44 are arranged at a set angle and can open the valve port 21 of the valve seat 20 . When conducting, the communication ports at both ends are independent of each other. When the channel of the one-way valve is closed, the refrigerant flows in the reverse direction, and the two guide vanes 44 are pushed by gravity or the direction of the refrigerant and can be closed with the valve port 21 of the valve seat 20 to realize the function of reverse closing of the channel.

5 to 6 , in some embodiments, the diverter assembly 40 includes: a magnetic member 45 , which is disposed on the guide plate 44 and can be adsorbed on the side of the valve port 21 . When closing the channel of the one-way valve, the tightness of the valve port 21 can be effectively increased.

In this embodiment, the magnetic member 45 includes a magnetic block and is disposed on the guide plate 44 . The guide vane 44 can be tightly connected with the side of the valve port 21 to control the flow of the refrigerant. The magnetic member 45 may be disposed on the surface of the guide piece 44 or inside the guide piece 44 . Optionally, the magnetic blocks are of regular shape, including polygonal structures such as circles or squares.

Wherein, taking the magnetic block 45 as an example, the magnetic member 45 is arranged on the surface of the guide piece 44 , and the guide piece 44 can be attracted to the valve port 21 . When the refrigerant does not pass through the valve port 21, the magnetic member 45 can prevent the guide vane 44 from being opened. The sealing performance between the guide piece 44 and the valve port 21 is ensured.

In this embodiment, the magnetic member 45 may also be an annular magnetic strip, and the annular magnetic strip is matched with the side of the valve port 21 . The magnetic member 45 may be disposed on the surface of the guide piece 44 or inside the guide piece 44 .

Wherein, taking the magnetic member 45 disposed on the surface of the guide piece 44 as an example, the annular magnetic strip is disposed on the surface of the guide piece 44 , and the guide piece 44 can be attracted to the valve port 21 . When the refrigerant does not pass through the valve port 21, the magnetic member 45 can prevent the guide vane 44 from being opened. The sealing performance between the guide piece 44 and the valve port 21 is ensured.

In some embodiments, the diverter assembly 40 further includes: a sealing gasket 46 , which is disposed on the guide plate 44 and whose shape is adapted to the valve port 21 . The magnetic piece 45 can prevent the guide piece 44 from being opened from the valve port 21 , but there may be a gap between the guide piece 44 and the valve port 21 . Therefore, the sealing gasket 46 is provided, which can fill the gap between the guide piece 44 and the valve port 21 to further ensure the sealing performance.

In this embodiment, the sealing gasket 46 can increase the sealing performance, and the sealing gasket 46 can be a gasket structure or a rubber gasket structure. can guarantee the tightness.

In this embodiment, the shunt assembly 40 includes a shaft 43 , two guide pieces 44 , a magnetic member 45 and a sealing gasket 46 . Among them, the shaft rod 43 is installed in the valve seat 20, the two guide pieces 44 are hinged with the shaft rod 43, the two guide pieces 44 are semicircular structures, the two guide pieces 44 are in the first posture, and the two guide pieces 44 are in the first posture. 44 is a flat plate structure, and is an entire circular structure, and the diameter of the formed circle is larger than the diameter of the valve port 21 . Sealing gaskets 46 are provided on the inner sides of the two guide vanes 44 , and the two sealing gaskets 46 are also semicircular structures.

The magnetic member 45 is arranged on the outer side of the two sealing gaskets 46 , so that the sealing gasket 46 can be connected with the inner side wall of the valve port 21 , and the magnetic member 45 is connected with the edge side wall of the valve port 21 . In this way, the two guide pieces 44 are in the first posture, forming a cover structure, which is fastened on the valve port 21 to further ensure the sealing.

2 or 4, in some embodiments, the first end of the valve body 10 is provided with a first communication port 11 and a second communication port 12, and the second end of the valve body 10 is provided with a third communication port 13 and The fourth communication port 14 . The refrigerant flowing into the first communication port 11 and the second communication port 12 may flow out from the third communication port 13 and the fourth communication port 14 .

In some embodiments, the diversion pipeline 600 includes: a first diversion branch 601, the first end is connected to the first communication port 11, the second end is connected to the second diversion element 702; the second diversion branch 602, the first The end is connected to the second communication port 12, and the second end is connected to the third shunt element 703; the third shunt branch 603, the first end is connected to the third communication port 13, and the second end is connected to the third nozzle of the gas collecting pipe 100. 103 is connected; the fourth shunt branch 604, the first end is connected with the fourth communication port 14, and the second end is connected with the first shunt element 701.

In this embodiment, the branch pipeline 600 includes a first branch branch 601, a second branch branch 602, a third branch branch 603 and a fourth branch branch 604; the one-way valve 10 includes a first communication port 11, The second communication port 12 , the third communication port 13 and the fourth communication port 14 . In the heating flow downward, the refrigerant enters the check valve 10 from the second branching branch 602 through the second communication port 12, and enters the third branching element 703 from the fourth communication port 14 for branching; passing through the third heat exchange branch 400 and the first The refrigerant of the four heat exchange branches 500 enters the one-way valve 10 through the first communication port 11 , and enters the gas collecting pipe 100 through the third communication port 13 . In the cooling flow direction, the one-way valve 10 can prevent the refrigerant from flowing from the fourth branching branch 604 to the second branching element 702 and the third branching element 703 .

In this embodiment, the valve body 10 includes a valve seat 20 , a limiting member 30 , a valve core 41 and a flow mixing member 42 , the valve seat 20 includes a valve port 21 , and the valve core 41 has a plug and a sliding portion. The first end is close to the plug of the valve core 41, and is provided with a first communication port 11 and a second communication port 12; the second end of the valve body 10 is close to the sliding part of the valve core 41, and is provided with a third communication port 13 and a fourth communication port 12. Communication port 14 .

When the refrigerant flows into the first communication port 11 and the second communication port 12, the refrigerant will push the plug of the valve core 41, so that the refrigerant can flow in from the valve port 21 of the valve seat 20, pass through the flow mixing member 42, and the flow mixing member 42 The inflowing refrigerant is mixed, and when the refrigerant in the mixing member 42 reaches a certain volume, it will flow out from the mixing member 42 and flow into the third communication port 13 and the fourth communication port 14 respectively. In this way, multiple pipelines at the first end of the valve body 10 are converged, and multiple pipelines at the second end of the valve body 10 flow out.

When the refrigerant flows in from the side of the limiting member 30, the refrigerant will push the valve core 41, so that the plug of the valve core 41 can be inserted into the valve port 21 of the valve seat 20, thereby closing the channel of the one-way valve.

Optionally, the valve body 10 includes a valve seat 20 , a limiting member 30 , a shaft 43 , two guide pieces 44 , a magnetic member 45 and a sealing gasket 46 . The first end of the valve body 10 is close to the valve port 21 and is provided with a first communication port 11 and a second communication port 12; the second end of the valve body 10 is close to the limiting member 30 and is provided with a third communication port 13 and a fourth communication port mouth 14.

When the refrigerant flows into the first communication port 11 and the second communication port 12, the two guide vanes 44 are pushed open by the pushing force of the refrigerant, so that the refrigerant can flow in from the valve port 21 of the valve seat 20. The guide vanes 44 have divided the valve seat 20 into two channels. into the third communication port 13 and the fourth communication port 14, respectively. In this way, multiple pipelines at the first end of the valve body 10 are converged, and multiple pipelines at the second end of the valve body 10 flow out.

When the refrigerant flows in from the side of the limiting member 30, the refrigerant pushes the two guides 44 to block the valve port 21, and completes the sealing through the magnetic member 45 and the sealing gasket 46, thereby closing the channel of the one-way valve.

3 and 4, in some embodiments, the valve body 10 further includes: a baffle 15, which is arranged in the valve seat 20; when the two guide pieces 44 are in the second posture, the two guide pieces 44 can be connected with each other. The ribs 15 abut against each other. The opening degrees of the two guide vanes 44 can be limited to make the flow distribution more stable and uniform. It is also possible to prevent the two guide vanes 44 from colliding with each other.

In this embodiment, the inside of the valve body 10 also has a rib 15 , which can be used to limit the movable range of the guide piece 44 . After the two guide vanes 44 are pushed apart by the pushing force of the refrigerant, if the baffle 15 is not provided, the two guide vanes 44 may collide with each other, which affects the stability and uniformity of the split flow.

For example, when the refrigerant passes through the valve port 21 at a certain flow rate, the two guide vanes 44 are flushed open. Since the two guide pieces 44 are connected together by the shaft 43, after the two guide pieces 44 are opened at a certain angle, the two guide pieces 44 will block each other to form an obstacle, thereby affecting the stability and uniformity of the shunt. The valve seat 20 is provided with a baffle 15, which can limit the opening angle of the two guide pieces 44 to a certain extent, so as to prevent the two guide pieces 44 from blocking each other and forming an obstacle.

In this embodiment, the rib 15 may be a columnar structure or a plate-like structure, and the rib 15 is located on one side of the limiting member 30 , so that the two guide pieces 44 can be effectively abutted.

In some embodiments, the baffle 15 extends outward through the limiting member 30 to separate the third communication port 13 and the fourth communication port 14 . The third communication port 13 and the fourth communication port 14 can be formed as independent communication ports.

In the present embodiment, the opening angle of the two guide pieces 44 can be limited to a certain extent, and the rib 15 can be extended to the outside through the limiting member 30 , and can communicate with the inner parts of the third communication port 13 and the fourth communication port 14 . The sides are connected, so that when the two guide vanes 44 are in contact with the rib 15 , the refrigerant of the two guide vanes 44 can directly flow into the defined third communication port 13 and fourth communication port 14 .

In summary, with the help of the above technical solutions, by setting the valve body with a plurality of shunt structures with a plug-in function, one check valve can be used instead of multiple check valves, saving installation space; a flow shunt assembly is arranged in the valve body , When used in a heat exchanger, the refrigerant flowing through the one-way valve is in a gas-liquid two-phase state, and the diverter component can make the refrigerant evenly and stably divert to different diversion structures to ensure the consistency of the flow of different diversion structures.

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples represent only possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. a one-way valve, is characterized in that, comprises: a valve body (10), having a valve seat (20) and a limiting member (30), and two ends of the valve body (10) are provided with a plurality of communication ports; a flow distribution assembly (40), arranged on the valve seat (20); When the channels of the valve body (10) are connected, the flow dividing assembly (40) can evenly divide the fluid to different communication ports. 2. The one-way valve according to claim 1, wherein the diverter assembly (40) comprises: The flow mixing member (42) is arranged outside the valve seat (20), and can mix the fluid flowing through the limiting member (30). 3 . The one-way valve according to claim 2 , wherein the flow mixing member ( 42 ) comprises a mesh cover with a semicircular structure, which is buckled and arranged on the outside of the valve seat ( 20 ). 4 . 4. The one-way valve of claim 1, wherein the diverter assembly comprises: The shaft is arranged in the valve seat; There are two guide pieces, which are movably connected by the shaft; The two guides are in the first posture, and the two guides are in a flat structure, which can close the valve port of the valve seat; the two guides are in the second posture, and the two guides are set at a set angle, which can open the valve of the valve seat. The port can evenly divide the inflowing fluid. 5. The one-way valve according to claim 4, wherein the diverter assembly (40) comprises: The magnetic piece (45) is arranged on the guide piece (44) and can be adsorbed on the side of the valve port (21). 6. The one-way valve of claim 4, further comprising: A sealing gasket (46) is arranged on the guide piece (44), and its shape is adapted to the valve port (21). 7. The one-way valve according to any one of claims 4 to 6, wherein the first end of the valve body (10) is provided with a first communication port (11) and a second communication port (12) The second end of the valve body (10) is provided with a third communication port (13) and a fourth communication port (14). 8. The one-way valve of claim 7, further comprising: a rib (15), arranged in the valve seat (20); When the two guide pieces (44) are in the second posture, both the guide pieces (44) can abut with the retaining edge (15). 9 . The one-way valve according to claim 8 , wherein the baffle ( 15 ) extends outward through the limiting member ( 30 ), connecting the third communication port ( 13 ) and all The fourth communication port (14) is separated. 10. A heat exchanger, characterized by comprising the one-way valve according to any one of claims 1 to 9.

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