One-way flow splitter and variable flow splitter heat exchanger

Abstract

The variable flow-dividing heat exchanger includes a first one-way flow dividing device (200) and a second one-way flow dividing device (400). The first one-way flow dividing device (200) includes a main pipe (1), a branch pipe (2), and a first sliding cutoff means (4). When the first sliding cutoff means (4) slides to a first position (41), a refrigerant flows in through the second refrigerant pipe port (12) and flows out through the third refrigerant pipe port (21). When the first sliding cutoff means (4) slides to a second position (42), a refrigerant flows in through the first refrigerant pipe port (11) and flows out through the second refrigerant pipe port (22). The second one-way flow dividing device (400) includes a main pipe (1), a branch pipe (2) and a second sliding cutoff means (5), and when the second sliding cutoff means (5) slides to the third position (51), the refrigerant flows in through the first refrigerant pipe port (11) and flows out through the third refrigerant pipe port (21), while when the second sliding cutoff means (5) slides to the fourth position (52), the refrigerant flows in through the second refrigerant pipe port (12) and the third refrigerant pipe port (21) and flows out through the first refrigerant pipe port (11). The use of this variable shunt heat exchanger helps reduce material costs and space costs.

Description

[Technical field]

[0001] This application is filed based on a Chinese patent application having application number 202210547991.X and filing date May 20, 2022, and claims priority to the Chinese patent application, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of air conditioning, for example to a one-way flow splitter and a variable flow splitter heat exchanger. [Background technology]

[0003] When an air conditioner is performing a cooling operation and a heating operation, the optimal flow path of its outdoor heat exchanger is different.

[0004] When the air conditioner is in heating operation, the refrigerant in the heat exchange pipe of the outdoor heat exchanger is in the low temperature and low pressure zone, the heat transfer performance is mainly controlled by the heat transfer coefficient and the pressure drop, suitable for a relatively large number of branch paths, which ensures the heat transfer coefficient and greatly reduces the pressure drop to increase the system pressure, thereby improving the low temperature heating capacity of the air conditioner. When the air conditioner is in cooling operation, the refrigerant in the heat exchange pipe of the outdoor heat exchanger is in the high temperature and high pressure zone, which is not sensitive to pressure drop, the heat transfer performance is mainly controlled by the heat transfer coefficient, suitable for a relatively small number of branch paths to accelerate the circulation and increase the heat transfer coefficient, thereby improving the high temperature cooling capacity of the air conditioner. At present, the outdoor heat exchanger of the air conditioner mainly uses a variable shunt heat exchanger to realize the switching control of the refrigerant flow path in the heating operation and the cooling operation. Summary of the Invention [Problem to be solved by the invention]

[0005] In the process of implementing the embodiments of the present disclosure, it is found that the related art has at least the following problems.

[0006] In the above-mentioned variable diversion heat exchangers, valves such as check valves and solenoid valves are often used to control the switching of the refrigerant flow path between heating and cooling operations. However, as the number of check valves, solenoid valves, and other valves increases, the number of welding points in the variable diversion heat exchanger also increases. In order to ensure a welding safety distance, a welding safety distance of 30 mm or more must be maintained between the welding points. This increases the material costs and space costs of the variable diversion heat exchanger. [Means for solving the problem]

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, the following provides a brief summary. This summary is not a general description, nor is it intended to identify key points / important features or delineate the scope of protection of these embodiments, but rather is used as a prelude to the detailed description that follows.

[0008] In the embodiments of the present disclosure, a one-way flow dividing device and a variable flow dividing heat exchanger are provided to solve the technical problem that the conventional variable flow dividing heat exchanger increases material costs and space costs due to an increase in valve welding points.

[0009] In an embodiment of a first aspect of the present application, there is provided a one-way flow dividing device, the device comprising: a main pipe including a first refrigerant pipe port and a second refrigerant pipe port provided at both ends, respectively, the main pipe being provided with a first liquid separation position adjacent to the first refrigerant pipe port and a second liquid separation position adjacent to the second refrigerant pipe port; a branch pipe having one end connected to the first liquid separation position of the main pipe and the other end being a third refrigerant pipe port; a communicating branch pipe connecting the second liquid separation position of the main pipe and the branch pipe; and a first sliding shutoff means provided slidably at the first liquid separation position, wherein when the first sliding shutoff means slides to a first position, the first refrigerant pipe port is shut off and refrigerant flows in from the second refrigerant pipe port and flows out from the third refrigerant pipe port, while when the first sliding shutoff means slides to a second position, the first refrigerant pipe port is opened and refrigerant flows in from the first refrigerant pipe port and flows out from the second refrigerant pipe port and the third refrigerant pipe port.

[0010] In some embodiments, the first sliding blocking means includes a first blocking slider arranged along a cross section of the main pipe at the first liquid separation position and slidable between a first position and a second position at the first liquid separation position, a first abutment slider fixedly connected to the first blocking slider and abutting an inner wall of the main pipe, wherein the first abutment slider is slidable together with the first blocking slider, a first positioning means arranged on the inner wall of the main pipe, wherein when the first sliding blocking means slides to the first position, the first blocking slider abuts against the first positioning means, and a second positioning means arranged on the inner wall of the main pipe, wherein when the first sliding blocking means slides to the second position, the first abutment slider abuts against the second positioning means.

[0011] In some embodiments, the first blocking slider is hollow or partially hollow.

[0012] In some embodiments, the first blocking slider includes a first bottom surface facing the inside of the main pipe, a second bottom surface facing the first refrigerant pipe port, and a first side surface surrounded by the first bottom surface and the second bottom surface, the first abutment slider is arranged along an edge of the first bottom surface, the perimeter of the first bottom surface is a first length, and the extension length of the first abutment slider on the first bottom surface is a second length, and the second length is greater than or equal to 1 / 3 of the first length and less than or equal to 1 / 2 of the first length.

[0013] In some embodiments, the distance between the first side of the first blocking slider and the inner wall of the main pipe at the first liquid separation position is greater than or equal to 0.005 mm and less than or equal to 1 mm.

[0014] In some embodiments, the cross-section of the main conduit in the first diversion position is polygonal, and the shape of the first blocking slider is the same as the shape of the cross-section in the first diversion position.

[0015] In some embodiments, the first bottom surface of the first blocking slider includes a first edge portion and a second edge portion that are folded and connected, and the first abutment slider includes a first abutment plate and a second abutment plate that are folded and connected, the first abutment plate being fixedly connected to the first edge portion, and the second abutment plate being fixedly connected to the second edge portion.

[0016] In some embodiments, the first sliding blocking means further includes a first boss provided on a first side of the first blocking slider, the height of the first boss being less than or equal to the height of the first side, the first boss being provided on a side of the first sliding blocking means facing the first liquid separation position, and the first abutment slider being provided on a side of the first sliding blocking means away from the first liquid separation position.

[0017] In some embodiments, the main pipe includes a first pipe segment between a first refrigerant pipe port and a first liquid separation location, the first pipe segment being inclined toward the first liquid separation location.

[0018] In an embodiment of a second aspect of the present application, there is provided a one-way flow dividing device comprising: a main pipe including a first refrigerant pipe port and a second refrigerant pipe port provided at both ends, respectively, the main pipe being provided with a first separation position adjacent to the first refrigerant pipe port and a second separation position adjacent to the second refrigerant pipe port; a branch pipe having one end connected to the first separation position of the main pipe and the other end being a third refrigerant pipe port; a communicating branch pipe connecting the second separation position of the main pipe and the branch pipe; and a second sliding cutoff means provided slidably at the second separation position, wherein when the second sliding cutoff means slides to a third position, the second refrigerant pipe port is cut off and refrigerant flows in from the first refrigerant pipe port and flows out from the third refrigerant pipe port, while when the second sliding cutoff means slides to a fourth position, the second refrigerant pipe port is opened and refrigerant flows in from the second refrigerant pipe port and the third refrigerant pipe port and flows out from the first refrigerant pipe port.

[0019] In some embodiments, the second sliding blocking means includes a second blocking slider arranged along a cross section of the main pipe at the second liquid separation position and slidable between a third position and a fourth position at the second liquid separation position, a second abutment slider fixedly connected to the second blocking slider and abutting an inner wall of the main pipe, wherein the second abutment slider is slidable together with the second blocking slider, a third positioning means provided on the inner wall of the main pipe, wherein when the second sliding blocking means slides to the third position, the second blocking slider abuts against the third positioning means, and a fourth positioning means provided on the inner wall of the main pipe, wherein when the second sliding blocking means slides to the fourth position, the second abutment slider abuts against the fourth positioning means.

[0020] In some embodiments, the second blocking slider is hollow or partially hollow.

[0021] In some embodiments, the second blocking slider includes a third bottom surface facing the inside of the main pipe, a fourth bottom surface facing the second refrigerant pipe port, and a second side surface surrounded by the third bottom surface and the fourth bottom surface, the second abutment slider is arranged along the edge of the third bottom surface, the perimeter of the third bottom surface is a third length, and the extension length of the second abutment slider on the third bottom surface is a fourth length, and the fourth length is greater than or equal to 1 / 3 of the third length and less than or equal to 1 / 2 of the third length.

[0022] In some embodiments, the distance between the second side of the second blocking slider and the inner wall of the main pipe at the second liquid separation position is greater than or equal to 0.005 mm and less than or equal to 1 mm.

[0023] In some embodiments, the cross-section of the main conduit in the second diversion position is polygonal, and the shape of the second blocking slider is the same as the shape of the cross-section in the second diversion position.

[0024] In some embodiments, the third bottom surface of the second blocking slider includes a third side portion and a fourth side portion that are folded and connected, and the second abutment slider includes a third abutment plate and a fourth abutment plate that are folded and connected, the third abutment plate being fixedly connected to the third side portion, and the fourth abutment plate being fixedly connected to the fourth side portion.

[0025] In some embodiments, the second sliding blocking means further includes a second boss provided on a second side of the second blocking slider, the height of the second boss being less than or equal to the height of the second side, the second boss being provided on a side of the second sliding blocking means facing the second liquid separation position, and the second abutment slider being provided on a side of the second sliding blocking means facing away from the second liquid separation position.

[0026] In some embodiments, the main pipe includes a second pipe segment between a second refrigerant port and a second liquid separation location, the second pipe segment being angled toward the second liquid separation location.

[0027] In an embodiment of a third aspect of the present application, there is provided a variable split flow heat exchanger, the variable split flow heat exchanger including a heat exchange line including a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch, which are connected in parallel; a first one-way flow diverter provided on a first side of the heat exchange line, the first one-way flow diverter having a second refrigerant pipe port connected to the first heat exchange branch; a first liquid separator provided on a second side of the heat exchange line, the first liquid separator being connected to the second heat exchange branch and a third heat exchange branch; and a second one-way flow diverter provided on the second side of the heat exchange line, the first liquid separator being connected to the second heat exchange branch and a third heat exchange branch. a second one-way flow dividing device, a third refrigerant pipe port of the second one-way flow dividing device being connected to the first heat exchange branch path; a first bypass pipe line connecting the second refrigerant pipe port of the second one-way flow dividing device to the first liquid separator; a second liquid separator provided on a first side of the heat exchange pipe line, the second liquid separator being connected to the third heat exchange branch path; and a second bypass pipe line connecting the first refrigerant pipe port of the first one-way flow dividing device to the second liquid separator, wherein the first one-way flow dividing device is any one-way flow dividing device according to the embodiment of the first aspect, and the second one-way flow dividing device is any one-way flow dividing device according to the embodiment of the second aspect.

[0028] The one-way flow splitter and variable flow splitter heat exchanger provided by the embodiments of the present disclosure can achieve the following technical effects:

[0029] The variable flow dividing heat exchanger provided by the embodiment of the present disclosure comprises a heat exchange pipeline, a first liquid separator, a second liquid separator, a first bypass pipeline, a second bypass pipeline, a first one-way flow dividing device and a second one-way flow dividing device, the first one-way flow dividing device and the second one-way flow dividing device each include a main pipe, a branch pipe and a connecting branch pipe, a first refrigerant pipe port and a second refrigerant pipe port are installed at both ends of the main pipe, a first liquid separating position is provided adjacent to the first refrigerant pipe port and a second liquid separating position is provided adjacent to the second refrigerant pipe port, one end of the branch pipe is connected to the first liquid separating position and the other end is a third refrigerant pipe port, and the connecting branch pipe communicates the second liquid separating position with the branch pipe.

[0030] The first one-way flow diverter further includes a first sliding cutoff means slidably provided at the first liquid dividing position, and when the first sliding cutoff means slides to the first position, the first refrigerant pipe port is cut off and the refrigerant flows in from the second refrigerant pipe port and flows out from the third refrigerant pipe port, while when the first sliding cutoff means slides to the second position, the first refrigerant pipe port is opened and the refrigerant flows in from the first refrigerant pipe port and flows out from the second refrigerant pipe port and the third refrigerant pipe port. The first one-way flow diverter does not require an extra valve, and the flow of the refrigerant within the first one-way flow diverter can be changed simply by cutting or opening the first refrigerant pipe port with the first sliding cutoff means, which helps reduce material costs and space costs.

[0031] The second one-way flow diverter further includes a second sliding cutoff means slidably provided at the second liquid dividing position, and when the second sliding cutoff means slides to the third position, the second refrigerant pipe port is cut off and the refrigerant flows in from the first refrigerant pipe port and flows out from the third refrigerant pipe port, while when the second sliding cutoff means slides to the fourth position, the second refrigerant pipe port is opened and the refrigerant flows in from the second refrigerant pipe port and the third refrigerant pipe port and flows out from the first refrigerant pipe port. The second one-way flow diverter does not require an additional valve, and the flow of the refrigerant within the second one-way flow diverter can be changed simply by cutting off or opening the second refrigerant pipe port with the second sliding cutoff means, which helps reduce material costs and space costs.

[0032] The general description above and the following description are exemplary and explanatory only and are not used to limit the present application. [Brief description of the drawings]

[0033] One or more embodiments are illustratively described by corresponding drawings, which illustrative description and drawings do not constitute limitations of the embodiments, and in the drawings, means having the same reference numbers are shown as similar means, and the drawings do not constitute limitations to scale, wherein: [Figure 1] FIG. 2 is a schematic diagram showing the configuration of a variable split-flow heat exchanger provided by an embodiment of the present disclosure in an air conditioner heating operation state. [Diagram 2]2 is an enlarged schematic diagram showing the structure of region A in FIG. 1. [Diagram 3] 2 is an enlarged configuration diagram showing the structure of region B in FIG. 1. [Figure 4] FIG. 2 is a schematic diagram showing a local structure of a first sliding blocking means provided according to an embodiment of the present disclosure; [Diagram 5] FIG. 11 is a schematic diagram showing a local structure of another first sliding blocking means provided by an embodiment of the present disclosure. [Figure 6] FIG. 2 is a schematic diagram showing the configuration of another variable split flow heat exchanger provided by an embodiment of the present disclosure in an air conditioner heating operation state. [Figure 7] FIG. 2 is a schematic diagram showing the configuration of a variable split-flow heat exchanger provided by an embodiment of the present disclosure in an air conditioner cooling operation state. [Figure 8] 8 is an enlarged schematic diagram showing the structure of region C in FIG. 7. [Figure 9] 8 is an enlarged schematic diagram showing the structure of region D in FIG. 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] In order to more fully understand the characteristics and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference purposes only and are not intended to limit the embodiments of the present disclosure. In the following technical description, in order to facilitate the description, a number of details are described to provide a sufficient understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices may be shown in simplified form to simplify the drawings.

[0035] In the description and claims of the embodiments of the present disclosure, as well as in the drawings described above, the terms "first," "second," etc. are intended to distinguish between similar objects without being used to describe a particular order or priority. It should be understood that the data so used are interchangeable where appropriate to describe the embodiments described in the present disclosure. Furthermore, the terms "including" and "having," as well as variations thereof, are intended to cover a non-exclusive inclusion.

[0036] In the embodiments of the present disclosure, the orientations or positional relationships indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "rear" are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of facilitating the description of the embodiments and embodiments of the present disclosure, and are not intended to be used to limit that the devices, means, or components shown must have a specific orientation or must be configured and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings in addition to the orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a specific dependency or connection relationship. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure may be understood depending on the specific situation.

[0037] Furthermore, the terms "provided," "coupled," and "fixed" are to be understood in a broad sense. For example, "coupled" may be a fixed connection, a removable connection, or an integral structure, may be a mechanical connection or an electrical connection, may be a direct connection or an indirect connection through an intermediate medium, or may be an internal communication between two devices, means, or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure may be understood according to the specific circumstances.

[0038] Unless otherwise specified, the term "plurality" means two or more.

[0039] In addition, examples in the embodiments of the present disclosure and features in the examples may be combined with each other without conflict.

[0040] A first aspect of an embodiment of the present disclosure provides a one-way flow dividing device including a main pipe 1, a branch pipe 2, a communicating branch pipe 3, and a first sliding cutoff means 4, as shown in Figures 1, 3, and 9. The main pipe 1 includes a first refrigerant pipe port 11 and a second refrigerant pipe port 12 provided at both ends of the main pipe 1, and the main pipe 1 is provided with a first liquid separation position 13 adjacent to the first refrigerant pipe port 11 and a second liquid separation position 14 adjacent to the second refrigerant pipe port 12. The branch pipe 2 has one end connected to the first liquid separation position 13 of the main pipe 1 and the other end being a third refrigerant pipe port 21. The communicating branch pipe 3 communicates between the second liquid separation position 14 of the main pipe 1 and the branch pipe 2. The first sliding cut-off means 4 is slidably arranged at a first liquid separation position 13, and when the first sliding cut-off means 4 slides to the first position 41, the first refrigerant pipe port 11 is blocked, and the refrigerant flows in from the second refrigerant pipe port 12 and flows out from the third refrigerant pipe port 21, while when the first sliding cut-off means 4 slides to the second position 42, the first refrigerant pipe port 11 is opened, and the refrigerant flows in from the first refrigerant pipe port 11 and flows out from the second refrigerant pipe port 12 and the third refrigerant pipe port 21.

[0041] According to the one-way flow diverting device provided by the embodiment of the present disclosure, the one-way flow diverting device includes a main pipe 1, a branch pipe 2, a communicating branch pipe 3, and a first sliding cutoff means 4. When the first sliding cutoff means 4 slides to a first position 41, the first refrigerant pipe port 11 is cut off, and the refrigerant flows in from the second refrigerant pipe port 12 and flows out from the third refrigerant pipe port 21. When the first sliding cutoff means 4 slides to a second position 42, the first refrigerant pipe port 11 is opened, and the refrigerant flows in from the first refrigerant pipe port 11 and flows out from the second refrigerant pipe port 12 and the third refrigerant pipe port 21. The one-way flow diverting device does not need to have an extra valve, and the first sliding cutoff means 4 cuts off or opens the first refrigerant pipe port 11, thereby changing the flow of the refrigerant in the one-way flow diverting device, which helps reduce material costs and space costs.

[0042] In the embodiment of the present disclosure, the branch pipe 2 communicates with the first separation position 13 of the main pipe 1, and the communicating branch pipe 3 communicates between the branch pipe 2 and the second separation position 14 of the main pipe 1, so that the inside of the one-way flow diverter device communicates in a circular shape. According to the above-mentioned communication form of the branch pipe 2, the main pipe 1 and the communicating branch pipe 3, it can be understood that the inside of this one-way flow diverter device is not limited to a circular shape, and can also be installed according to actual needs.

[0043] The operating principle of the one-way flow diverter is as follows. As shown in Figures 1 and 3, the straight arrows in the figures indicate the flow of the refrigerant, and when the air conditioner is in heating operation, the refrigerant in the air conditioner pipe flows through the one-way flow dividing device, first flowing into the first refrigerant pipe port 11. Since the refrigerant in the air conditioner pipe has a certain flow speed, when the refrigerant flows into the first refrigerant pipe port 11, the first sliding cutoff means 4 is pushed by the flow of the refrigerant and slides from the first position 41 to the second position 42, and when the first sliding cutoff means 4 slides to the second position 42, the first refrigerant pipe port 11 and the branch pipe 2 are connected, and the communicating branch pipe 3 communicates the second liquid separation position 14 of the main pipe 1 with the branch pipe 2, so that the refrigerant flows out from the second refrigerant pipe port 12 of the main pipe 1 and the third refrigerant pipe port 21 at the other end of the branch pipe 2.

[0044] 7 and 9, when the air conditioner is in cooling operation, the refrigerant in the air conditioner pipe flows through the one-way flow dividing device and first flows into the second refrigerant pipe 12. Since the refrigerant in the air conditioner pipe has a certain flow speed, when the refrigerant flows into the second refrigerant pipe 12, the first sliding cutoff means 4 slides from the second position 42 to the first position 41 by being pushed by the flow of the refrigerant. When the first sliding cutoff means 4 slides to the first position 41, the first refrigerant pipe port 11 is blocked, and the first liquid separation position 13 of the main pipe 1 is connected to the branch pipe 2, and the second liquid separation position 14 of the main pipe 1 is connected to the branch pipe 2 by the communicating branch pipe 3, so that the refrigerant flows out from the third refrigerant pipe port 21 of the branch pipe 2.

[0045] In some selectable embodiments, as shown in Fig. 3, the first sliding cutoff means 4 includes a first cutoff slider 43, a first abutment slider 44, a first positioning means 45, and a second positioning means 46. The first cutoff slider 43 is provided along a cross section of the main pipe 1 at the first liquid separation position 13, and can slide between a first position 41 and a second position 42 at the first liquid separation position 13. The first abutment slider 44 is fixedly connected to the first cutoff slider 43 and abuts against the inner wall of the main pipe 1, and the first abutment slider 44 can slide together with the first cutoff slider 43. The first positioning means 45 is provided on the inner wall of the main pipe 1, and when the first sliding cutoff means 4 slides to the first position 41, the first cutoff slider 43 abuts against the first positioning means 45. The second positioning means 46 is provided on the inner wall of the main pipe 1 , and when the first sliding blocking means 4 slides to the second position 42 , the first abutment slider 44 abuts against the second positioning means 46 .

[0046] According to this optional embodiment, by providing a first positioning means 45 and a second positioning means 46 on the inner wall of the main pipe 1, when the first sliding cutoff means 4 slides to the first position 41, the first cutoff slider 43 abuts against the first positioning means 45, while when the first sliding cutoff means 4 slides to the second position 42, the first abutment slider 44 abuts against the second positioning means 46; that is, the first positioning element 45 and the second positioning element 46 regulate the reciprocating sliding of the first cutoff slider 43 and the first abutment slider 44 between the first position 41 and the second position 42, thereby realizing the conduction and cutoff of the first refrigerant pipe port 11 and the branch pipe 2, and the structure is simple and the design is reasonable, which is convenient for processing and manufacturing.

[0047] In some alternative embodiments, the first blocking slider 43 is hollow or partially hollow.

[0048] According to this optional embodiment, making the interior of the first shutoff slider 43 hollow or partially hollow reduces the weight of the first shutoff slider 43 and helps reduce the resistance of the refrigerant to sliding the first shutoff slider 43 between the first position 41 and the second position 42.

[0049] Alternatively, the material of the first blocking slider 43 may be a composite of one or more of nylon, plastic, ceramic, or metal materials. When the material of the first blocking slider 43 is a metal material, it may be aluminum, copper, steel, etc.

[0050] It can be understood that the weight of the first shutoff slider 43 can be a solid material if it does not interfere with the pushing force of the refrigerant, thereby reducing deformation.

[0051] In some selectable embodiments, as shown in Figures 4, 5 and 9, the first blocking slider 43 includes a first bottom surface 431, a second bottom surface 432 and a first side surface 433. The first bottom surface 431 faces the inside of the main pipe 1, the second bottom surface 432 faces the first refrigerant pipe port 11, the first side surface 433 is surrounded between the first bottom surface 431 and the second bottom surface 432, the first abutment slider 44 is provided along the edge of the first bottom surface 431, the perimeter of the first bottom surface 431 is a first length, the extension length of the first abutment slider 44 on the first bottom surface 431 is a second length, and the second length is 1 / 3 or more and 1 / 2 or less of the first length.

[0052] According to this optional embodiment, by setting the relationship between the first length and the second length so that the second length is greater than or equal to 1 / 3 of the first length and less than or equal to 1 / 2 of the first length, the contact area between the first abutment slider 44 and the inner wall of the main pipe 1 can be kept within an appropriate range, which helps to improve the stability of the first sliding blocking means 4.

[0053] Alternatively, when the first abutment slider 44 is perpendicular to the first bottom surface 431, the extension length of the first abutment slider 44 on the first bottom surface 431, i.e., the second length, can be understood as the circumference of the projection of the first abutment slider 44 on the first bottom surface 431.

[0054] In some alternative embodiments, the distance between the first side surface 433 of the first blocking slider 43 and the inner wall of the main pipe 1 at the first liquid separation position 13 is 0.005 mm or more and 1 mm or less.

[0055] According to this optional embodiment, the distance between the first side surface 433 of the first blocking slider 43 and the inner wall of the main pipe 1 at the first liquid separation position 13 is not less than 0.005 mm and not more than 1 mm. This allows a small fitting gap between the first blocking slider 43 and the inner wall of the main pipe 1 at the first liquid separation position 13, which can improve the stability of the sliding process of the first blocking slider 43 without affecting the sliding of the first blocking slider 43.

[0056] Preferably, the distance between the first side surface 433 of the first blocking slider 43 and the inner wall of the main pipe 1 at the first liquid separation position 13 is not less than 0.01 mm and not more than 0.02 mm.

[0057] In some optional embodiments, as shown in FIG. 5, the cross-section of the main pipe 1 at the first separation position 13 is polygonal, and the shape of the first blocking slider 43 is the same as the shape of the cross-section at the first separation position 13.

[0058] According to this optional embodiment, the shape of the first shutoff slider 43 is the same as the cross-sectional shape of the main pipe 1 at the first liquid separation position 13, and both are polygonal. In this way, the first shutoff slider 43 can be engaged within the main pipe 1, and the first shutoff slider 43 is less likely to rotate when sliding back and forth at the first liquid separation position 13 of the main pipe 1, which helps to increase the stability of the first shutoff slider 43 when sliding.

[0059] As shown in FIG. 4, the shape of the first blocking slider 43 and the cross-sectional shape of the main pipe 1 at the first liquid separation position 13 may both be circular, or of course they can be set to other shapes as necessary.

[0060] In some optional embodiments, as shown in FIG. 5 , the first bottom surface 431 of the first blocking slider 43 includes a first side portion 4311 and a second side portion 4312 that are folded and connected, and the first abutment slider 44 includes a first abutment plate 441 and a second abutment plate 442 that are folded and connected, where the first abutment plate 441 is fixedly connected to the first side portion 4311 and the second abutment plate 442 is fixedly connected to the second side portion 4312.

[0061] According to this optional embodiment, the first bottom surface 431 of the first blocking slider 43 includes a first side portion 4311 and a second side portion 4312 which are folded and connected, and the first abutment slider 44 includes a first abutment plate 441 and a second abutment plate 442 which are folded and connected, the first abutment plate 441 is fixedly connected to the first side portion 4311, and the second abutment plate 442 is fixedly connected to the second side portion 4312. In this manner, a contact angle is formed between the first abutment slider 44 and the inner wall surface at the first liquid separation position 13 of the main pipe 1, which, on the one hand, can increase the contact area between the first abutment slider 44 and the inner wall surface, thereby improving the structural stability of the first abutment slider 44, and on the other hand, can prevent the first blocking slider 43 from rotating when sliding.

[0062] In some optional embodiments, as shown in Figures 3, 4 and 5, the first sliding blocking means 4 further includes a first boss 47 provided on the first side 433 of the first blocking slider 43, the height of the first boss 47 is less than or equal to the height of the first side 433, the first boss 47 is provided on the side of the first sliding blocking means 4 facing the first liquid separation position 13, and the first abutment slider 44 is provided on the side of the first sliding blocking means 4 away from the first liquid separation position 13.

[0063] According to this optional embodiment, the first boss 47 is provided on the first side 433 of the first shutoff slider 43, and its height is equal to or less than the height of the first side 433. By providing the first boss 47 on the side facing the first liquid separation position 13 of the first sliding shutoff means 4, on the one hand, it is possible to reduce the possibility of the first sliding shutoff means 4 being displaced after sliding to the first position 41 or the second position 42, and on the other hand, it is possible to provide support to the first shutoff slider 43, thereby reducing the possibility of deformation due to refrigerant impact.

[0064] It can be seen that the shapes of the upper and lower surfaces of the first boss 47 are adapted to the shape of the branch pipe 2 that is located at the first liquid separation position 13 of the main pipe 1 and communicates with it.

[0065] In some selectable embodiments, the main pipe 1 includes a first pipe segment 15 between the first refrigerant pipe port 11 and the first liquid separation position 13, and the first pipe segment 15 is provided at an incline toward the first liquid separation position 13. As shown in Fig. 6, the first pipe segment 15 is inclined from the lower left to the upper right.

[0066] According to this optional embodiment, the first pipe segment 15 is inclined toward the first liquid separation position 13, and thus, when the refrigerant is passed through the first refrigerant pipe port 11, the refrigerant generates an upward and rightward impact force on the first shutoff slider 43, causing the first shutoff slider 43 and the first abutment slider 44 to slide from the first position 41 to the second position 42 while being in close contact with the inner wall of the main pipe 1, which helps to ensure the normal operation of the first sliding shutoff means 4.

[0067] A second aspect of the embodiment of the present disclosure provides a one-way flow dividing device including a main pipe 1, a branch pipe 2, a communicating branch pipe 3, and a second sliding cutoff means 5, as shown in Figures 1, 2, and 8. The main pipe 1 includes a first refrigerant pipe port 11 and a second refrigerant pipe port 12 provided at both ends of the main pipe 1, and the main pipe 1 is provided with a first liquid separation position 13 adjacent to the first refrigerant pipe port 11 and a second liquid separation position 14 adjacent to the second refrigerant pipe port 12. The branch pipe 2 has one end connected to the first liquid separation position 13 of the main pipe 1 and the other end being a third refrigerant pipe port 21. The communicating branch pipe 3 communicates the second liquid separation position 14 of the main pipe 1 with the branch pipe 2. The second sliding cut-off means 5 is slidably arranged at the second liquid separation position 14, and when the second sliding cut-off means 5 slides to the third position 51, the second refrigerant pipe port 12 is blocked, and the refrigerant flows in from the first refrigerant pipe port 11 and flows out from the third refrigerant pipe port 21, while when the second sliding cut-off means 5 slides to the fourth position 52, the second refrigerant pipe port 12 is opened, and the refrigerant flows in from the second refrigerant pipe port 12 and the third refrigerant pipe port 21, and flows out from the first refrigerant pipe port 11.

[0068] According to the one-way flow diverting device provided by the embodiment of the present disclosure, the one-way flow diverting device includes a main pipe 1, a branch pipe 2, a communicating branch pipe 3, and a second sliding cutoff means 5. When the second sliding cutoff means 5 slides to the third position 51, the second refrigerant pipe port 12 is cut off, and the refrigerant flows in from the first refrigerant pipe port 11 and flows out from the third refrigerant pipe port 21. When the second sliding cutoff means 5 slides to the fourth position 52, the second refrigerant pipe port 12 is opened, and the refrigerant flows in from the second refrigerant pipe port 12 and the third refrigerant pipe port 21 and flows out from the first refrigerant pipe port 11. The one-way flow diverting device does not need to have an extra valve, and the second sliding cutoff means 5 cuts off or opens the second refrigerant pipe port 12, thereby changing the flow of the refrigerant in the one-way flow diverting device, which helps reduce material costs and space costs.

[0069] In the embodiment of the present disclosure, the branch pipe 2 is connected to the first separation position 13 of the main pipe 1, and the communicating branch pipe 3 further connects the branch pipe 2 to the second separation position 14 of the main pipe 1, so that the inside of the one-way flow diverter device is connected in a circular shape. According to the above-mentioned communication form of the branch pipe 2, the main pipe 1 and the communicating branch pipe 3, it can be understood that the inside of this one-way flow diverter device is not limited to a circular shape, and can also be installed according to actual needs.

[0070] The operating principle of the one-way flow diverter is as follows. As shown in Figures 1 and 2, the straight arrows in the figures indicate the flow of the refrigerant, and when the air conditioner is in heating operation, the refrigerant in the air conditioner pipe flows through the one-way flow dividing device, first flowing into the second refrigerant pipe port 12 and the third refrigerant pipe 21. Since the refrigerant in the air conditioner pipe has a certain flow speed, when the refrigerant flows into the second refrigerant pipe port 12, the second sliding cutoff means 5 is pushed by the flow of the refrigerant and slides from the third position 51 to the fourth position 52. When the second sliding cutoff means 5 slides to the fourth position 52, the second refrigerant pipe port 12 and the communicating branch pipe 3 are connected, and the branch pipe 2 is connected to the first liquid separation position 13 of the main pipe 1, so the refrigerant flows in from the second refrigerant pipe port 12 and the third refrigerant pipe port 21 and flows out from the first refrigerant pipe port 11.

[0071] 7 and 8, when the air conditioner is in cooling operation, the refrigerant in the air conditioner pipe flows through the one-way flow dividing device and first flows into the first refrigerant pipe 11. Since the refrigerant in the air conditioner pipe has a certain flow speed, when the refrigerant flows into the first refrigerant pipe 11, the second sliding cutoff means 5 slides from the fourth position 52 to the third position 51 by being pushed by the flow of the refrigerant, and when the second sliding cutoff means 5 slides to the third position 51, the second refrigerant pipe port 12 is blocked, and the communicating branch pipe 3 communicates between the second liquid separation position 14 of the main pipe 1 and the branch pipe 2, so that the refrigerant flows out from the third refrigerant pipe port 21 of the branch pipe 2.

[0072] In some selectable embodiments, as shown in FIG. 2, the second sliding cutoff means 5 includes a second cutoff slider 53, a second abutting slider 54, a third positioning means 55, and a fourth positioning means 56. The second cutoff slider 53 is provided along a cross section of the main pipe 1 at the second liquid separation position 14, and is slidable between a third position 51 and a fourth position 52 at the second liquid separation position 14. The second abutting slider 54 is fixedly connected to the second cutoff slider 53 and abuts against the inner wall of the main pipe 1, and the second abutting slider 54 is slidable together with the second cutoff slider 53. The third positioning means 55 is provided on the inner wall of the main pipe 1, and when the second sliding cutoff means 5 slides to the third position 51, the second cutoff slider 53 abuts against the third positioning means 55. The fourth positioning means 56 is provided on the inner wall of the main pipe 1 , and when the second sliding blocking means 5 slides to the fourth position 52 , the second abutment slider 54 abuts against the fourth positioning means 56 .

[0073] According to this optional embodiment, by providing the third positioning means 55 and the fourth positioning means 56 on the inner wall of the main pipe 1, when the second sliding cutoff means 5 slides to the third position 51, the third cutoff slider 53 abuts against the third positioning means 55, while when the second sliding cutoff means 5 slides to the fourth position 52, the second abutment slider 54 abuts against the fourth positioning means 56; that is, the third positioning element 55 and the fourth positioning element 56 regulate the reciprocating sliding of the second cutoff slider 53 and the second abutment slider 54 between the third position 51 and the fourth position 52, thereby realizing the conduction and cutoff of the second refrigerant pipe port 12 and the communicating branch pipe 3, and the structure is simple and the design is reasonable, which is convenient for processing and manufacturing.

[0074] In some alternative embodiments, the interior of the second blocking slider 53 is hollow or partially hollow.

[0075] According to this optional embodiment, making the interior of the second shutoff slider 53 hollow or partially hollow reduces the weight of the second shutoff slider 53 and helps reduce the resistance of the refrigerant sliding the second shutoff slider 53 between the third position 51 and the fourth position 52.

[0076] Alternatively, the material of the second blocking slider 53 may be a composite of one or more of nylon, plastic, ceramic, or metal materials. When the material of the second blocking slider 53 is a metal material, it may be aluminum, copper, steel, etc.

[0077] It can be understood that the weight of the second blocking slider 53 can be a solid material if it does not interfere with the pushing force of the refrigerant, thereby reducing deformation.

[0078] In some selectable embodiments, the second blocking slider 53 includes a third bottom surface, a fourth bottom surface, and a second side surface. The third bottom surface faces the inside of the main pipe 1, the fourth bottom surface faces the second refrigerant pipe port 12, the second side surface is surrounded between the third bottom surface and the fourth bottom surface, the second abutting slider 54 is provided along the edge of the third bottom surface, the perimeter of the third bottom surface is a third length, the extension length of the second abutting slider 54 on the third bottom surface is a fourth length, and the fourth length is 1 / 3 or more and 1 / 2 or less of the third length.

[0079] According to this optional embodiment, by setting the relationship between the third length and the fourth length so that the fourth length is greater than or equal to 1 / 3 of the third length and less than or equal to 1 / 2 of the third length, the contact area between the second abutment slider 54 and the inner wall of the main pipe 1 can be kept within an appropriate range, which helps to improve the stability of the second sliding blocking means 5.

[0080] Alternatively, when the second abutment slider 54 is perpendicular to the third bottom surface, the extension length of the second abutment slider 54 on the third bottom surface, i.e., the fourth length, can be understood as the perimeter of the projection of the second abutment slider 54 on the third bottom surface.

[0081] In some alternative embodiments, the distance between the second side surface of the second shutoff slider 53 and the inner wall of the main pipe 1 at the second liquid separation position 14 is greater than or equal to 0.005 mm and less than or equal to 1 mm.

[0082] According to this optional embodiment, the distance between the second side surface of the second shutoff slider 53 and the inner wall of the main pipe 1 at the second liquid separation position 14 is 0.005 mm or more and 1 mm or less. This satisfies the requirement that there is a small fitting gap between the second shutoff slider 53 and the inner wall of the main pipe 1 at the second liquid separation position 14 without affecting the sliding of the second shutoff slider 53.

[0083] Preferably, the distance between the second side surface of the second blocking slider 53 and the inner wall of the main pipe 1 at the second liquid separation position 14 is not less than 0.01 mm and not more than 0.02 mm.

[0084] In some embodiments, the cross-section of the main pipe 1 at the second separation position 14 is polygonal, and the shape of the second blocking slider 53 is the same as the shape of the cross-section at the second separation position 14 .

[0085] According to this optional embodiment, the shape of the second shutoff slider 53 is the same as the cross-sectional shape of the main pipe 1 at the second liquid separation position 14, and both are polygonal. In this way, the second shutoff slider 53 can be engaged within the main pipe 1, and the second shutoff slider 53 is less likely to rotate when sliding back and forth at the second liquid separation position 14 of the main pipe 1, which helps to increase the stability of the second shutoff slider 53 when sliding.

[0086] The shape of the second shutoff slider 53 and the shape of the cross section of the main pipe 1 at the second liquid separation position 14 may both be circular, or of course can be set to other shapes as required.

[0087] In some optional embodiments, the third bottom surface of the second blocking slider 53 includes a third side portion and a fourth side portion that are folded and connected, and the second abutment slider 54 includes a third abutment plate and a fourth abutment plate that are folded and connected, the third abutment plate being fixedly connected to the third side portion, and the fourth abutment plate being fixedly connected to the fourth side portion.

[0088] According to this optional embodiment, the third bottom surface of the second blocking slider 53 includes a third side portion and a fourth side portion which are folded and connected, and the second abutment slider 54 includes a third abutment plate and a fourth abutment plate which are folded and connected, the third abutment plate is fixedly connected to the third side portion, and the fourth abutment plate is fixedly connected to the fourth side portion. In this manner, a contact angle is formed between the second abutment slider 54 and the inner wall surface at the second liquid separation position 14 of the main pipe 1, which, on the one hand, can increase the contact area between the second abutment slider 54 and the inner wall surface, thereby improving the structural stability of the second abutment slider 54, and on the other hand, can prevent the second blocking slider 53 from rotating when sliding.

[0089] In some optional embodiments, as shown in Figures 1 and 2, the second sliding cutoff means 5 further includes a second boss 57 provided on the second side of the second cutoff slider 53, the height of the second boss 57 is less than or equal to the height of the second side, the second boss 57 is provided on the side of the second sliding cutoff means 5 facing the second liquid separation position 14, and the second abutment slider 54 is provided on the side of the second sliding cutoff means 5 away from the second liquid separation position 14.

[0090] According to this optional embodiment, the second boss 57 is provided on the second side of the second shutoff slider 53, its height is equal to or less than the height of the second side, and is provided on the side facing the second liquid separation position 14 of the second sliding shutoff means 5, which, on the one hand, can reduce the possibility of the second sliding shutoff means 5 being displaced after sliding to the third position 51 or the fourth position 52, and on the other hand, can provide support to the second shutoff slider 53, thereby reducing the possibility of deformation of the second shutoff slider 53 due to refrigerant impact.

[0091] It can be seen that the shapes of the upper and lower surfaces of the first boss 57 are adapted to the shape of the communicating branch pipe 3 which is located at the second liquid separation position 14 of the main pipe 1 and communicates with it.

[0092] In some alternative embodiments, as shown in Figures 1, 2 and 6, the main pipe 1 includes a second pipe segment 16 between the second refrigerant pipe port 12 and the second liquid separation position 14, and the second pipe segment 16 is inclined toward the second liquid separation position 14.

[0093] According to this optional embodiment, the second pipe segment 16 is inclined toward the second liquid separation position 14, and thus, when the refrigerant is passed through the second refrigerant pipe port 12, the refrigerant generates an upward and leftward impact force on the second shutoff slider 53, causing the second shutoff slider 53 and the second abutment slider 54 to slide from the third position 51 to the fourth position 52 while being in close contact with the inner wall of the main pipe 1, which helps to ensure the normal operation of the second sliding shutoff means 5.

[0094] A third aspect of an embodiment of the present disclosure provides a variable divided flow heat exchanger, which includes a heat exchange line 100, a first one-way flow diverter 200, a first liquid separator 300, a second one-way flow diverter 400, a first bypass line 500, a second liquid separator 600 and a second bypass line 700, as shown in FIG. 1 and FIG. 7 .

[0095] The heat exchange pipe 100 includes a first heat exchange branch 101, a second heat exchange branch 102, and a third heat exchange branch 103, which are connected in parallel. The first one-way flow dividing device 200 is provided on a first side of the heat exchange pipe 100, and the second refrigerant pipe port 12 of the first one-way flow dividing device 200 is connected to the first heat exchange branch 101. The first liquid separator 300 is provided on a second side of the heat exchange pipe 100, and the first liquid separator 300 is connected to the second heat exchange branch 102 and the third heat exchange branch 103. The second one-way flow dividing device 400 is provided on the second side of the heat exchange pipe 100, and the third refrigerant pipe 21 of the second one-way flow dividing device 400 is connected to the first heat exchange branch 101. The first bypass pipe 500 communicates between the second refrigerant pipe 12 of the second one-way flow dividing device 400 and the first liquid separator 300. The second liquid separator 600 is provided on the first side of the heat exchange pipe 100, and the second liquid separator 600 communicates with the third heat exchange branch pipe 103. The second bypass pipe 700 communicates between the first refrigerant pipe port 11 of the first one-way flow dividing device and the second liquid separator 600.

[0096] Here, as shown in Figures 3 and 9, the first one-way flow diverter device 200 is a one-way flow diverter device in an embodiment of the first aspect, and as shown in Figures 2 and 8, the second one-way flow diverter device 400 is a one-way flow diverter device in an embodiment of the second aspect.

[0097] The variable flow diverter heat exchanger provided by the embodiments of the present disclosure includes any one of the one-way flow diverter devices according to the embodiments of the first aspect and any one of the one-way flow diverter devices according to the embodiments of the second aspect, and therefore has all the beneficial effects of any one of the one-way flow diverter devices according to the embodiments of the first aspect described above and any one of the one-way flow diverter devices according to the embodiments of the second aspect, and therefore will not be repeated here.

[0098] As shown in Figs. 1 and 7, the air conditioner includes a compressor 800, an indoor heat exchanger 900, a throttle device 1000, a variable branch heat exchanger, and a refrigerant circulation circuit in which these are arranged.

[0099] Here, when the air conditioner is in heating operation, the flow of the refrigerant is as shown by the straight arrow in Fig. 1. Specifically, high-temperature and high-pressure refrigerant from the compressor 800 flows into the indoor heat exchanger 900, which heats the indoor environment by the action of a fan, and the cooled refrigerant flows into the throttle device 1000, and after going through the throttling pressure reduction process of the throttle device 1000, the refrigerant flows into the variable split-flow heat exchanger, specifically, the refrigerant first flows into the second liquid separator 600 of the variable split-flow heat exchanger, and then a part of the refrigerant flows from the second liquid separator 600 into the third heat exchange branch 103. Another part of the refrigerant flows into the first refrigerant pipe 11 of the first one-way flow dividing device 200 through the second bypass pipe 700, and then flows into the first heat exchange branch 101 and the second heat exchange branch 102 through the second refrigerant pipe 12 and the third refrigerant pipe 21 of the first one-way flow dividing device 200, respectively, and the refrigerant in the second heat exchange branch 102 and the third heat exchange branch 103 both flow into the first liquid separator 300. The refrigerant that flows into the first liquid separator 300 flows into the second refrigerant pipe 12 of the second one-way flow dividing device 400 through the first bypass pipe 500, and the refrigerant that flows out of the first heat exchange branch 101 flows into the third refrigerant pipe port 21 of the second one-way flow dividing device 400, so that all the refrigerant flows out of the first refrigerant pipe port 11 of the second one-way flow dividing device 400 and returns to the compressor 800 to perform the next cycle. In the above process, the first heat exchange branch 101, the second heat exchange branch 102 and the third heat exchange branch 103 are connected in parallel, that is, the refrigerant passes through three branches to complete the heat exchange in the variable flow shunt heat generator body, so as to ensure the heat transfer coefficient and greatly reduce the pressure drop, thereby improving the low-temperature heating capacity.

[0100] When the air conditioner is in cooling operation, the flow of the refrigerant is as shown by the straight arrows in Fig. 7. Specifically, high-temperature and high-pressure refrigerant from the compressor 800 flows into the variable flow splitter, and the refrigerant first flows into the first refrigerant pipe port 11 of the second one-way flow splitter 400 of the variable flow splitter, then flows out from the third refrigerant pipe port 21 of the second one-way flow splitter 400, and the outflowing refrigerant flows through the first heat branch path 101 into the second refrigerant pipe port 12 of the first one-way flow splitter 200, and the first one-way flow splitter 200 The refrigerant flows out from the third refrigerant pipe port 21, flows into the second heat branch passage 102, the first liquid separator 300, and the third heat branch passage 103, and then flows into the second liquid separator 600 from the third heat exchange branch passage 103. After the refrigerant flows out of the second liquid separator 600, it enters the throttling device 1000 for throttling and reducing the pressure, and then flows into the indoor heat exchanger 900, which cools the indoor air. After absorbing the heat from the indoor environment, the refrigerant returns to the compressor 800 to perform the next cycle. In the above process, the first heat exchange branch path 101, the second heat exchange branch path 102 and the third heat exchange branch path 103 connect the second one-way flow diverter device 400, the first one-way flow diverter device 200, the first liquid separator 300 and the second liquid separator 600 in series, that is, the refrigerant passes through one path to complete the heat exchange in the variable flow diverter heat exchanger body, thereby accelerating the circulation of the refrigerant and improving the high-temperature cooling capacity.

[0101] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that one skilled in the art can implement them. Other embodiments may include structural and other modifications. The embodiments represent only possible modifications. Individual parts and functions are optional unless explicitly required, and the order of operations may be changed. Portions and features of some embodiments may be included in or substituted for portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures 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. [Explanation of symbols]

[0102] 1 main manager 2 branch pipes 3 Connecting branch pipe 4 First sliding blocking means 5 Second sliding blocking means 100 Heat exchange line 200 1st one-way flow divider 300 1st separator 400 2nd one-way flow divider 500 First bypass pipeline 600 2nd separator 700 Second bypass pipeline 800 Compressor 900 Indoor heat exchanger 1000 Throttle Device 101 First heat exchange branch 102 Second heat exchange branch 103 3rd heat exchange branch 11 1st refrigerant pipe port 12 2nd refrigerant pipe port 13 1st separation position 14 2nd separation position 15 First Pipe Segment 16 Second Pipe Segment 21 3rd refrigerant pipe port 41 1st position 42 2nd position 43 First cutoff slider 431 1st bottom 4311 First side 4312 Second side 432 2nd bottom surface 433 1st aspect 44 First contact slider 441 First abutment plate 442 Second abutment plate 45 First positioning means 46 Second positioning means 47 First Boss 51 3rd position 52 4th position 53 Second cutoff slider 54 Second contact slider 55 Third positioning means 56 Fourth positioning means 57 Second Boss

Claims

1. a main pipe (1) including a first refrigerant pipe port (11) and a second refrigerant pipe port (12) provided at both ends, the main pipe (1) being provided with a first liquid separation position (13) adjacent to the first refrigerant pipe port (11) and a second liquid separation position (14) adjacent to the second refrigerant pipe port (12); a branch pipe (2) having one end connected to the first liquid separation position (13) of the main pipe (1) and the other end being a third refrigerant pipe port (21); a communicating branch pipe (3) that communicates the second liquid separation position (14) of the main pipe (1) with the branch pipe (2); a first sliding blocking means (4) slidably provided at the first liquid separating position (13); When the first sliding cut-off means (4) slides to a first position (41), the first refrigerant pipe port (11) is cut off, and the refrigerant flows in from the second refrigerant pipe port (12) and flows out from the third refrigerant pipe port (21), while when the first sliding cut-off means (4) slides to a second position (42), the first refrigerant pipe port (11) is opened, and the refrigerant flows in from the first refrigerant pipe port (11) and flows out from the second refrigerant pipe port (12) and the third refrigerant pipe port (21). A one-way flow diverter device.

2. The first sliding blocking means (4) is a first blocking slider (43) provided along a cross section of the main pipe (1) at the first liquid separation position (13) and slidable between a first position (41) and a second position (42) at the first liquid separation position (13); a first abutment slider (44) fixedly connected to the first blocking slider (43) and abutting against an inner wall of the main pipe (1), the first abutment slider (44) being slidable together with the first blocking slider (43); a first positioning means (45) provided on an inner wall of the main pipe (1), the first sliding blocking means (4) sliding to a first position (41), the first blocking slider (43) abutting against the first positioning means (45); a second positioning means (46) provided on an inner wall of the main pipe (1), wherein when the first sliding blocking means (4) slides to a second position (42), the first abutment slider (44) abuts against the second positioning means (46); 2. The one-way flow diverter according to claim 1 .

3. The first blocking slider (43) is hollow or partially hollow inside.

3. The one-way flow diverter according to claim 2.

4. The first blocking slider (43) is A first bottom surface (431) facing the inside of the main pipe (1); a second bottom surface (432) facing the first refrigerant pipe port (11); A first side surface (433) surrounded by the first bottom surface (431) and the second bottom surface (432), The first abutment slider (44) is provided along an edge of the first bottom surface (431), the circumferential length of the first bottom surface (431) is a first length, and the extension length of the first abutment slider (44) on the first bottom surface (431) is a second length, and the second length is ⅓ or more of the first length and ½ or less of the first length.

4. The one-way flow dividing device according to claim 2 or 3.

5. a distance between a first side surface (433) of the first blocking slider (43) and an inner wall of the main pipe (1) at a first liquid separation position (13) is 0.005 mm or more and 1 mm or less; 5. The one-way flow diverter according to claim 4.

6. the cross section of the main pipe (1) at the first liquid separation position (13) is polygonal, and the shape of the first blocking slider (43) is the same as the shape of the cross section at the first liquid separation position (13); The one-way flow dividing device according to any one of claims 2 to 5.

7. The first bottom surface (431) of the first blocking slider (43) includes a first side portion (4311) and a second side portion (4312) that are bent and connected to each other, The first abutment slider (44) includes a first abutment plate (441) and a second abutment plate (442) that are bent and connected to each other, the first abutment plate (441) is fixedly connected to the first side portion (4311), and the second abutment plate (442) is fixedly connected to the second side portion (4312).

7. The one-way flow diverter according to claim 6.

8. The first sliding blocking means (4) is The first blocking slider (43) further includes a first boss (47) provided on a first side surface (433) of the first blocking slider (43), the height of the first boss (47) being equal to or less than the height of the first side surface (433); the first boss (47) is provided on a side of the first sliding cutoff means (4) facing the first liquid separation position (13), and the first abutment slider (44) is provided on a side of the first sliding cutoff means (4) away from the first liquid separation position (13); The one-way flow dividing device according to any one of claims 4 to 7.

9. The main pipe (1) includes a first pipe segment (15) between a first refrigerant pipe port (11) and a first liquid separation position (13); The first pipe segment (15) is provided so as to be inclined toward the first liquid separation position (13). The one-way flow dividing device according to any one of claims 2 to 8.

10. a main pipe (1) including a first refrigerant pipe port (11) and a second refrigerant pipe port (12) provided at both ends, the main pipe (1) being provided with a first liquid separation position (13) adjacent to the first refrigerant pipe port (11) and a second liquid separation position (14) adjacent to the second refrigerant pipe port (12); a branch pipe (2) having one end connected to the first liquid separation position (13) of the main pipe (1) and the other end being a third refrigerant pipe port (21); a communicating branch pipe (3) that communicates the second liquid separation position (14) of the main pipe (1) with the branch pipe (2); a second sliding blocking means (5) slidably provided at the second liquid separation position (14); When the second sliding cut-off means (5) slides to a third position (51), the second refrigerant pipe port (12) is cut off, and the refrigerant flows in from the first refrigerant pipe port (11) and flows out from the third refrigerant pipe port (21), while when the second sliding cut-off means (5) slides to a fourth position (52), the second refrigerant pipe port (12) is opened, and the refrigerant flows in from the second refrigerant pipe port (12) and the third refrigerant pipe port (21) and flows out from the first refrigerant pipe port (11). A one-way flow diverter device.

11. The second sliding blocking means (5) is a second blocking slider (53) provided along a cross section of the main pipe (1) at the second liquid separation position (14) and slidable between a third position (51) and a fourth position (52) at the second liquid separation position (14); a second abutment slider (54) fixedly connected to the second blocking slider (53) and abutting against an inner wall of the main pipe (1), the second abutment slider (54) being slidable together with the second blocking slider (53); a third positioning means (55) provided on an inner wall of the main pipe (1), the second blocking slider (53) abutting against the third positioning means (55) when the second sliding blocking means (5) slides to a third position (51); a fourth positioning means (56) provided on an inner wall of the main pipe (1), wherein when the second sliding blocking means (5) slides to a fourth position (52), the second abutment slider (54) abuts against the fourth positioning means (56); 11. The one-way flow diverter according to claim 10.

12. The second blocking slider (53) is hollow or partially hollow inside. The one-way flow diverter according to claim 11 .

13. The second blocking slider (53) is A third bottom surface facing the inside of the main pipe (1); a fourth bottom surface facing the second refrigerant pipe port (12); a second side surface surrounded by the third bottom surface and the fourth bottom surface; the second abutment slider (54) is provided along an edge of the third bottom surface, the perimeter of the third bottom surface is a third length, the extension length of the second abutment slider (54) on the third bottom surface is a fourth length, and the fourth length is ⅓ or more of the third length and ½ or less of the third length; 13. The one-way flow diverter according to claim 11 or 12.

14. a distance between the second side surface of the second blocking slider (53) and the inner wall of the main pipe (1) at the second liquid separation position (14) is 0.005 mm or more and 1 mm or less; 14. The one-way flow diverter of claim 13.

15. the cross section of the main pipe (1) at the second liquid separation position (14) is polygonal, and the shape of the second blocking slider (53) is the same as the shape of the cross section at the second liquid separation position (14); The one-way flow diverter according to any one of claims 11 to 14.

16. The third bottom surface of the second blocking slider (53) includes a third side portion and a fourth side portion that are bent and connected to each other, The second abutment slider (54) includes a third abutment plate and a fourth abutment plate which are bent and connected to each other, the third abutment plate being fixedly connected to the third side portion, and the fourth abutment plate being fixedly connected to the fourth side portion.

16. The one-way flow diverter of claim 15.

17. The second sliding blocking means (5) is The second blocking slider (53) further includes a second boss (57) provided on a second side surface thereof, the height of the second boss (57) being equal to or less than the height of the second side surface; the second boss (57) is provided on a side of the second sliding cutoff means (5) facing the second liquid separation position (14), and the second abutment slider (54) is provided on a side of the second sliding cutoff means (5) away from the second liquid separation position (14); 17. The one-way flow diverter according to any one of claims 13 to 16.

18. the main pipe (1) includes a second pipe segment (16) between a second refrigerant pipe port (12) and a second liquid separation location (14); The second pipe segment (16) is inclined toward the second liquid separation position (14).

18. A one-way flow diverter according to any one of claims 11 to 17.

19. A heat exchange line (100) including a first heat exchange branch (101), a second heat exchange branch (102), and a third heat exchange branch (103) connected in parallel; a first one-way flow diverter (200) provided on a first side of the heat exchange pipeline (100), the first one-way flow diverter (200) having a second refrigerant pipe port (12) connected to the first heat exchange branch (101); a first separator (300) provided on a second side of the heat exchange line (100), the first separator (300) being in communication with the second heat exchange branch (102) and the third heat exchange branch (103); a second one-way flow diverter (400) provided on a second side of the heat exchange pipe (100), the second one-way flow diverter (400) having a third refrigerant pipe port (21) connected to the first heat exchange branch (101); a first bypass pipe (500) communicating between a second refrigerant pipe port (12) of the second one-way flow dividing device (400) and the first liquid separator (300); a second separator (600) provided on a first side of the heat exchange line (100), the second separator (600) being in communication with the third heat exchange branch (103); a second bypass pipe (700) communicating between the first refrigerant pipe port (11) of the first one-way flow dividing device and a second liquid separator (600); The first one-way flow diverter (200) is a one-way flow diverter according to any one of claims 1 to 9, and the second one-way flow diverter (400) is a one-way flow diverter according to any one of claims 10 to 18. A variable split-flow heat exchanger comprising:

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