Unidirectional conducting member and variable split heat exchanger

Abstract

The application relates to the technical field of air conditioning equipment, and discloses a one-way conducting component, which comprises a metal valve seat and a metal valve core. The metal valve core is arranged in the metal valve seat and can slide between a first valve seat part and a second valve seat part to open or seal a valve seat hole. When fluid flows in a first direction, the metal valve core slides from the second valve seat part to the first valve seat part, the metal valve core seals the valve seat hole, and the one-way conducting component is in a closed state; when fluid flows in a second direction, the metal valve core slides from the first valve seat part to the second valve seat part, the metal valve core opens the valve seat hole and abuts against the second valve seat part, the one-way conducting component is in a conducting state, and fluid flows out from a flow-through hole after flowing through the valve seat hole. In this way, the high-temperature resistance of the one-way conducting component is improved, the maintenance frequency of a heat exchanger caused by damage of a one-way valve is reduced, and the use experience of users is improved. The application further discloses a variable flow distribution heat exchanger.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, such as a unidirectional flow component and a variable flow heat exchanger. Background Technology

[0002] The heat exchanger is an important structural component of an air conditioner, enabling it to perform functions such as cooling, heating, and dehumidification. Taking a split-type air conditioner as an example, the air conditioner includes an indoor heat exchanger located in the indoor unit and an outdoor heat exchanger located in the outdoor unit.

[0003] Heat exchangers typically include tube-fin heat exchangers, microchannel heat exchangers, etc. They are usually equipped with valve components such as check valves and flow dividers to regulate parameters such as the flow direction and flow rate of the refrigerant flowing inside the heat exchanger, thereby improving the heat exchange efficiency of the heat exchanger and enhancing the cooling or heating capacity of the air conditioner.

[0004] The one-way valves used in existing heat exchangers have poor high-temperature resistance, resulting in a short service life. This increases the frequency of heat exchanger maintenance and reduces the user experience.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a unidirectional flow component and a variable flow heat exchanger to extend the service life of the unidirectional flow component on the heat exchanger and improve the user experience.

[0008] In some embodiments, a one-way conduction member includes: a metal valve seat, including a first valve seat portion and a second valve seat portion, the first valve seat portion having a valve seat hole, and a flow hole being provided between the first valve seat portion and the second valve seat portion; and a metal valve core, disposed within the metal valve seat and slidable between the first valve seat portion and the second valve seat portion to open or seal the valve seat hole, wherein when fluid flows in a first direction, the metal valve core slides from the second valve seat portion to the first valve seat portion, the metal valve core seals the valve seat hole, and the one-way conduction member is in a closed state; when fluid flows in a second direction, the metal valve core slides from the first valve seat portion to the second valve seat portion, the metal valve core opens the valve seat hole and abuts against the second valve seat portion, the one-way conduction member is in a conducting state, allowing fluid to flow through the valve seat hole and then out through the flow hole.

[0009] In some alternative embodiments, the metal valve core includes a valve core sealing portion for sealing the valve seat bore and a valve core abutting portion for abutting against a second valve seat portion, the second valve seat portion including a valve seat sleeve portion, wherein when the metal valve core abuts against the second valve seat portion, the valve core abutting portion is sleeved on the inner wall of the valve seat sleeve portion.

[0010] In some alternative embodiments, the height of the valve core abutment portion is L1, and the height of the valve seat sleeve portion is L2, wherein L1 ≥ L2.

[0011] In some alternative embodiments, the height of the valve core sealing portion is L3, and the height of the flow hole is L4, wherein L4 ≥ L3.

[0012] In some alternative embodiments, the unidirectional conduction component further includes a silencing element disposed at the valve seat hole.

[0013] In some alternative embodiments, the silencing element is provided with a fixing hole, the metal valve seat is provided with a sliding shaft, and the metal valve core can slide along the sliding shaft, wherein the sliding shaft of the metal valve seat passes through the fixing hole of the silencing element.

[0014] In some alternative embodiments, the flow hole includes a first flow hole located on one side of the metal valve core and a second flow hole located on the other side of the metal valve core, wherein a filter element is provided at both the first flow hole and the second flow hole.

[0015] In some alternative embodiments, the filter element includes a metal filter screen.

[0016] In some embodiments, a variable flow heat exchanger includes a unidirectional flow member as described above.

[0017] In some optional embodiments, the variable flow heat exchanger further includes: a gas pipe component, including a gas collecting pipe and a first unidirectional conductive component disposed within the gas collecting pipe; a liquid pipe component, including a liquid collecting pipe and a second unidirectional conductive component disposed within the liquid collecting pipe; and a plurality of heat exchange flow paths connecting the gas pipe component and the liquid pipe component, the plurality of heat exchange flow paths including a first heat exchange flow path, a second heat exchange flow path, and a third heat exchange flow path, wherein, when the variable flow heat exchanger is used as an evaporator, both the first unidirectional conductive component and the second unidirectional conductive component are in a conductive state. The first heat exchange flow path, the second heat exchange flow path, and the third heat exchange flow path are connected in parallel; when the variable flow heat exchanger is used as a condenser, both the first unidirectional conduction component and the second unidirectional conduction component are in a closed state, the first heat exchange flow path, the second heat exchange flow path, and the third heat exchange flow path are connected in series, and the first unidirectional conduction component is the unidirectional conduction component as described above, and the first unidirectional conduction component is integrally formed with the gas collecting pipe; and / or, the second unidirectional conduction component is the unidirectional conduction component as described above, and the second unidirectional conduction component is integrally formed with the liquid collecting pipe.

[0018] The unidirectional conduction component and variable flow heat exchanger provided in this disclosure can achieve the following technical effects:

[0019] The unidirectional flow member includes a metal valve seat and a metal valve core. The metal valve seat includes a first valve seat portion and a second valve seat portion. The first valve seat portion has a valve seat hole, and a flow hole is provided between the first valve seat portion and the second valve seat portion. The metal valve core is disposed within the metal valve seat and can slide between the first valve seat portion and the second valve seat portion to open or seal the valve seat hole. Specifically, when the fluid flows in a first direction, the metal valve core slides from the second valve seat portion to the first valve seat portion, sealing the valve seat hole, and the unidirectional flow member is in a closed state. When the fluid flows in a second direction, the metal valve core slides from the first valve seat portion to the second valve seat portion, opening the valve seat hole and abutting against the second valve seat portion, and the unidirectional flow member is in a conducting state, allowing the fluid to flow through the valve seat hole and out through the flow hole.

[0020] As can be seen, in the unidirectional guiding member provided in the embodiments of this disclosure, the metal valve core can slide between the first valve seat and the second valve seat, so that the fluid flowing in the second direction can flow through the unidirectional guiding member, and the unidirectional guiding member is in a conducting state; while the fluid flowing in the first direction is blocked by the unidirectional guiding member, and the unidirectional guiding member is in a closed state.

[0021] Furthermore, the one-way valve component includes a metal valve seat and a metal valve core. This improves the high-temperature resistance of the one-way valve component, thereby extending its service life, reducing the number of repairs required due to one-way valve failure, and enhancing the user experience.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are considered similar elements. The drawings do not constitute a limitation of scale, and wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a unidirectional conduction component provided in an embodiment of this disclosure;

[0025] Figure 2 This is a schematic diagram of the structure of a metal valve core provided in an embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of another unidirectional conduction component provided in an embodiment of this disclosure;

[0027] Figure 4This is a schematic diagram of another unidirectional conduction component provided in an embodiment of this disclosure;

[0028] Figure 5 This is a schematic diagram of another unidirectional conduction component provided in an embodiment of this disclosure;

[0029] Figure 6 This is a schematic diagram of another unidirectional conduction component provided in an embodiment of this disclosure;

[0030] Figure 7 This is a schematic diagram of another unidirectional conduction component provided in an embodiment of this disclosure;

[0031] Figure 8 This is a schematic diagram of another unidirectional conduction component provided in an embodiment of this disclosure;

[0032] Figure 9 This is a schematic diagram of a variable flow heat exchanger provided in an embodiment of this disclosure.

[0033] Figure label:

[0034] 1: Metal valve seat; 11: First valve seat portion; 12: Second valve seat portion; 101: Valve seat hole; 102: Flow hole; 1021: First flow hole; 1022: Second flow hole;

[0035] 2: Metal valve core; 21: Valve core sealing part; 22: Valve core abutment part;

[0036] 3: Noise-reducing components;

[0037] 41: First metal filter screen; 42: Second metal filter screen;

[0038] 500: Tracheal component; 501: First unidirectional conduit component; 502: Gas collecting tube; 511: First tracheal branch tube; 512: Second tracheal branch tube; 513: Third tracheal branch tube;

[0039] 600: Liquid pipe component; 601: Second unidirectional flow component; 602: Liquid collecting pipe; 611: First liquid pipe branch pipe; 612: Second liquid pipe branch pipe; 613: Third liquid pipe branch pipe;

[0040] 701: First heat exchange path; 702: Second heat exchange path; 703: Third heat exchange path. Detailed Implementation

[0041] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0042] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0043] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0044] Furthermore, the terms "setup," "connection," and "installation" should be interpreted broadly. For example, "connection" can refer to an installation connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can refer to the internal communication between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0045] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0047] One-way valves are common valve components in heat exchangers. Currently, the one-way valves used in heat exchangers include float-type one-way valves, diaphragm-type one-way valves, and piston-type one-way valves. Among them, the float-type one-way valve has an internal valve core made of nylon 66, with a temperature resistance of ≤120℃; the diaphragm-type one-way valve has an internal magnetic structure, and demagnetization occurs at temperatures above 200℃; the piston-type one-way valve uses a plastic gasket and spring seal, and high temperatures cause the gasket and spring to fail. It is evident that the high-temperature resistance of existing one-way valves is relatively poor.

[0048] This disclosure provides a unidirectional conduction component that improves its resistance to high temperatures.

[0049] Optionally, the unidirectional flow member includes a metal valve seat 1 and a metal valve core 2. The metal valve seat 1 includes a first valve seat portion 11 and a second valve seat portion 12. The first valve seat portion 11 is provided with a valve seat hole 101, and a flow hole 102 is provided between the first valve seat portion 11 and the second valve seat portion 12. The metal valve core 2 is disposed within the metal valve seat 1 and can slide between the first valve seat portion 11 and the second valve seat portion 12 to open or seal the valve seat hole 101. When the fluid flows in a first direction, the metal valve core 2 slides from the second valve seat portion 12 to the first valve seat portion 11, and the metal valve core 2 seals the valve seat hole 101, and the unidirectional flow member is in a closed state. When the fluid flows in a second direction, the metal valve core 2 slides from the first valve seat portion 11 to the second valve seat portion 12, and the metal valve core 2 opens the valve seat hole 101 and abuts against the second valve seat portion 12, and the unidirectional flow member is in a conducting state, so that the fluid flows through the valve seat hole 101 and then flows out through the flow hole 102.

[0050] The valve seat of the unidirectional guiding component provided in this embodiment is a metal valve seat 1, and the valve core is a metal valve core 2, which improves the overall high temperature resistance of the unidirectional guiding component.

[0051] Optionally, the metal valve seat 1 and the metal valve core 2 are made of the same material. Optionally, the material of the metal valve seat 1 is the same as the material of the heat exchange tube of the heat exchanger on which the one-way conduction component is installed. For example, the materials of the metal valve seat 1 and the metal valve core 2 are both copper, aluminum or stainless steel.

[0052] Optionally, the first valve seat portion 11 is provided with a valve seat hole 101 through which fluid can flow, such as... Figure 3 As shown. The metal valve core 2 can slide to the first valve seat portion 11 and seal the valve seat hole 101, so that the one-way conduction component is in a closed state.

[0053] Optionally, the second valve seat portion 12 is disposed above the first valve seat portion 11, and the metal valve core 2 can slide vertically between the first valve seat portion 11 and the second valve seat portion 12. Fluid flows along a first direction, which can be from top to bottom, such as... Figure 6The arrow in the diagram indicates the first direction. In this direction, the metal valve core 2 seals the valve seat hole 101, causing the unidirectional flow component to close. The fluid flows in the second direction, which can be from bottom to top, such as... Figure 5 The arrow in the middle indicates the second direction. At this time, the metal valve core 2 is subjected to the upward flow force of the fluid. The metal valve core 2 slides upward and abuts against the second valve seat 12. At this time, the valve seat hole 101 is open and the unidirectional conduction component is in the conducting state.

[0054] A flow hole 102 is provided between the first valve seat portion 11 and the second valve seat portion 12. Optionally, a valve seat connecting portion is provided between the first valve seat portion 11 and the second valve seat portion 12 to connect the first valve seat portion 11 and the second valve seat portion 12. The flow hole 102 is opened in the valve seat connecting portion. When the unidirectional guiding member is in the conducting state, the flow hole 102 is connected to the valve seat hole 101, so that the refrigerant flowing out from the valve seat hole 101 can further flow out through the flow hole 102.

[0055] Optionally, when the unidirectional guide member is installed vertically, the valve seat hole 101 is opened in the up-down direction, which can also be understood as the valve seat hole 101 being opened vertically; the flow hole 102 is opened in the left-right direction, which can also be understood as the flow hole 102 being opened horizontally. Optionally, the opening area of ​​the flow hole 102 is greater than or equal to the opening area of ​​the valve seat hole 101.

[0056] The metal valve core 2 includes a valve core sealing part 21 for sealing the valve seat hole 101 and a valve core abutting part 22 for abutting against the second valve seat part 12. The second valve seat part 12 includes a valve seat sleeve part, wherein when the metal valve core 2 abuts against the second valve seat part 12, the valve core abutting part 22 is sleeved on the inner wall of the valve seat sleeve part.

[0057] Optionally, the valve core sealing portion 21 of the metal valve core 2 is bowl-shaped, and the diameter of the valve core sealing portion 21 varies at different positions. The valve core sealing portion 21 includes a valve core sealing top end near the valve core abutment portion 22 and a valve core sealing bottom end away from the valve core abutment portion 22. The diameter of the valve core sealing portion 21 gradually increases from the bottom end to the top end. Specifically, the valve core sealing portion 21 includes a valve core sealing position located between the bottom end and the top end of the valve core sealing portion and used to abut against the valve seat hole 101. The diameter of the valve core sealing position is the same as the diameter of the valve seat hole 101. Figure 2 and Figure 6 As shown.

[0058] Optionally, the diameter of the valve core abutment portion 22 of the metal valve core 2 is the same as the diameter of the valve core sealing top. For example... Figure 2As shown. The inner diameter of the valve seat sleeve portion of the second valve seat portion 12 is slightly larger than the diameter of the valve core abutment portion 22. Thus, when the metal valve core 2 abuts against the second valve seat portion 12, the valve core abutment portion 22 is fitted onto the inner wall of the valve seat sleeve portion, improving the abutment stability of the metal valve core 2. Optionally, the diameter of the valve core abutment portion 22 is the same at different positions; similarly, the inner diameter of the valve seat sleeve portion is the same at different positions.

[0059] It is understood that both the valve core sealing part 21 and the valve core abutment part 22 are made of metal. Optionally, the valve core sealing part 21 and the valve core abutment part 22 are integrally formed.

[0060] Optionally, the height of the valve core abutment portion 22 is L1, and the height of the valve seat sleeve portion is L2, wherein L1 ≥ L2.

[0061] The valve core abutment portion 22 of the metal valve core 2 has a certain height and is hollow. The valve seat sleeve portion that sleeves with the valve core abutment portion 22 also has a certain height. Figure 7 As shown. The height of the valve core abutment portion 22 is L1, and the height of the valve seat sleeve portion is L2. Optionally, L1 > L2. Optionally, the difference between L1 and L2 is Lx1, where 0.1L1 ≤ Lx1 ≤ 0.3L1, thus improving the abutment stability between the valve core abutment portion 22 and the valve seat sleeve portion of the metal valve core 2.

[0062] Optionally, the height of the valve core sealing part 21 is L3, and the height of the flow hole 102 is L4, wherein L4 ≥ L3.

[0063] The valve core sealing part 21 also has a certain height. In this embodiment, L4 > L3. Thus, when the unidirectional guiding member is in the conducting state, the refrigerant flowing out from the valve seat hole 101 can flow out through the flow hole 102. Furthermore, the outer wall of the valve core abutment part 22 of the metal valve seat 1 can also form a certain guiding effect on the refrigerant, improving the flow effect of the refrigerant. Optionally, the difference between L4 and L3 is Lx2, where 0.1L4≤Lx2≤0.3L4.

[0064] Optionally, the unidirectional flow component also includes a silencing element 3, which is disposed at the valve seat hole 101.

[0065] Optionally, the silencing element 3 is disposed at the valve seat hole 101, and the silencing element 3 has a through hole for refrigerant flow, the through hole of the silencing element 3 having a porous structure. Optionally, the silencing element 3 has a sheet-like or plate-like structure, and the through hole of the silencing element 3 can be circular, rhomboid, triangular, elliptical, or other shapes to disrupt the slug flow pattern of the fluid. Optionally, the silencing element 3 is made of stainless steel, or the material of the silencing element 3 is the same as that of the metal valve core 2 and the metal valve seat 1.

[0066] Optionally, the silencing element 3 is provided with a fixing hole, the metal valve seat 1 is provided with a sliding shaft, and the metal valve core 2 can slide along the sliding shaft, wherein the sliding shaft of the metal valve seat 1 passes through the fixing hole of the silencing element 3.

[0067] A fixing hole is formed in the middle of the silencing element 3, and a sliding shaft, also known as a central shaft, is provided on the metal valve seat 1. In this embodiment, the sliding shaft of the metal valve seat 1 passes through the fixing hole of the silencing element 3, making the silencing element 3 and the metal valve core 2 coaxially arranged, thus improving the silencing stability of the silencing element 3. Optionally, the fixing hole of the silencing element 3 is spot-welded to the sliding shaft. Optionally, the fixing hole of the silencing element 3 is slightly larger than the diameter of the sliding shaft, while ensuring slight sliding friction. Optionally, the size of the silencing element 3 is slightly smaller than the size of the valve seat hole 101.

[0068] Optionally, the flow hole 102 includes a first flow hole 1021 located on one side of the metal valve core 2 and a second flow hole 1022 located on the other side of the metal valve core 2, wherein a filter element is provided at both the first flow hole 1021 and the second flow hole 1022.

[0069] In this embodiment, the first flow hole 1021 and the second flow hole 1022 are symmetrically arranged on both sides of the metal valve core 2. A filter element is provided at both the first flow hole 1021 and the second flow hole 1022. The filter element improves the gas-liquid mixing properties of the refrigerant flowing through the first flow hole 1021 and the second flow hole 1022. Optionally, the filter element includes a metal filter screen. Optionally, the material of the metal filter screen is the same as the material of the metal valve core 2 and the metal valve seat 1.

[0070] Optionally, during the preparation of the unidirectional conduction component, the metal valve core 2 can be inserted into the interior of the metal valve seat 1 from the upper opening of the second valve seat portion 12, and then the upper opening of the second valve seat portion 12 can be rolled, thus fixing the metal valve seat 1.

[0071] The unidirectional conduit component provided in this embodiment can be placed in the desired position on the refrigerant pipe, and can be sealed or fixed to the refrigerant pipe through processes such as grooving or pressing. Testing shows that the leakage rate of the unidirectional conduit component provided in this embodiment is less than 100 ml / min.

[0072] This disclosure also provides a variable flow heat exchanger. This variable flow heat exchanger can be used as the outdoor heat exchanger of an air conditioner.

[0073] Optionally, the variable flow heat exchanger includes a unidirectional flow component as described above.

[0074] The following explanation uses a variable flow heat exchanger as an example of an outdoor heat exchanger to illustrate how a heat exchanger can achieve variable flow.

[0075] When the air conditioner is in cooling mode, the variable flow heat exchanger acts as a condenser. Due to the unidirectional flow mechanism, the multiple heat exchange paths of the variable flow heat exchanger are connected in series, which improves the subcooling of the refrigerant within the variable flow heat exchanger. When the air conditioner is in heating mode, the variable flow heat exchanger acts as an evaporator. Again, due to the unidirectional flow mechanism, the multiple heat exchange paths of the variable flow heat exchanger are connected in parallel, avoiding pressure loss caused by excessively long flow paths. This ensures that the performance requirements of the heat exchanger are met in different operating modes simultaneously.

[0076] Optionally, the variable flow heat exchanger further includes a gas pipe component 500, a liquid pipe component 600, and multiple heat exchange flow paths. The gas pipe component 500 includes a gas collecting pipe 502 and a first unidirectional flow component 501 disposed within the gas collecting pipe 502. The liquid pipe component 600 includes a liquid collecting pipe 602 and a second unidirectional flow component 601 disposed within the liquid collecting pipe 602. Multiple heat exchange flow paths connect the gas pipe component 500 and the liquid pipe component 600, and the multiple heat exchange flow paths include a first heat exchange flow path 701, a second heat exchange flow path 702, and a third heat exchange flow path 703. Specifically, when the variable flow heat exchanger is used as an evaporator, both the first unidirectional flow member 501 and the second unidirectional flow member 601 are in a conducting state, and the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703 are connected in parallel; when the variable flow heat exchanger is used as a condenser, both the first unidirectional flow member 501 and the second unidirectional flow member 601 are in a closed state, and the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703 are connected in series. Furthermore, the first unidirectional flow member 501 is a unidirectional flow member as described above, and the first unidirectional flow member 501 is integrally formed with the gas collecting pipe 502; and / or, the second unidirectional flow member 601 is a unidirectional flow member as described above, and the second unidirectional flow member 601 is integrally formed with the liquid collecting pipe 602.

[0077] Optionally, the tracheal component 500 further includes a first tracheal branch pipe 511, a second tracheal branch pipe 512, and a third tracheal branch pipe 513 disposed in the gas collecting pipe 502 and respectively connected to the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703. The first unidirectional guiding component 501 is disposed between the first tracheal branch pipe 511 and the second tracheal branch pipe 512 in the gas collecting pipe 502, and the guiding direction of the first unidirectional guiding component 501 is from the second tracheal branch pipe 512 to the first tracheal branch pipe 511.

[0078] Similarly, the liquid pipe component 600 also includes a first liquid pipe branch pipe 611, a second liquid pipe branch pipe 612, and a third liquid pipe branch pipe 613 disposed in the liquid collecting pipe 602 and respectively connected to the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703. The second unidirectional conduction component 601 is disposed between the second liquid pipe branch pipe 612 and the third liquid pipe branch pipe 613 in the liquid collecting pipe 602, and the conduction direction of the second unidirectional conduction component 601 is from the third liquid pipe branch pipe 613 to the second liquid pipe branch pipe 612.

[0079] When the variable flow heat exchanger is used as a condenser, the first unidirectional flow member 501 and the second unidirectional flow member 601 are closed, and the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703 are connected in series. The refrigerant flowing in from the inlet end of the gas pipe member 500 flows through the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703 in sequence. In this way, the length of the flow path of the refrigerant in the variable flow heat exchanger is increased, and the subcooling degree of the refrigerant is increased.

[0080] When the variable flow heat exchanger is used as an evaporator, the first unidirectional flow member 501 and the second unidirectional flow member 601 are opened, and the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703 are arranged in parallel. The refrigerant flowing in from the inlet end of the liquid pipe member 600 flows through the first heat exchange flow path 701, the second heat exchange flow path 702, and the third heat exchange flow path 703 respectively. In this way, the pressure loss problem caused by excessively long flow paths is avoided.

[0081] Optionally, the first unidirectional flow member 501 and / or the second unidirectional flow member 601 are unidirectional flow members with the aforementioned structure, thereby improving the overall high temperature resistance of the variable flow heat exchanger.

[0082] The integral molding of the first unidirectional guiding component 501 and the gas collecting pipe 502 can be understood as follows: the first unidirectional guiding component 501 is placed between the first gas pipe branch pipe 511 and the second gas pipe of the gas collecting pipe 502, and is sealed or fixed with the gas collecting pipe 502 through processes such as rolling groove and pressing groove, thus realizing the integral molding of the first unidirectional guiding component 501 and the gas collecting pipe 502.

[0083] Similarly, the integral molding of the second unidirectional guiding component 601 with the liquid collecting pipe 602 can be understood as placing the second unidirectional guiding component 601 between the second liquid pipe branch pipe 612 and the third liquid pipe of the liquid collecting pipe 602, and sealing or fixing it with the liquid collecting pipe 602 through processes such as rolling grooves and pressing grooves, thereby realizing the integral molding of the second unidirectional guiding component 601 with the liquid collecting pipe 602.

[0084] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. 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 its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A unidirectional conduction component, characterized in that, include: A metal valve seat (1) includes a first valve seat portion (11) and a second valve seat portion (12). The first valve seat portion (11) is provided with a valve seat hole (101), and a flow hole (102) is provided between the first valve seat portion (11) and the second valve seat portion (12); and, A metal valve core (2) is disposed within a metal valve seat (1) and can slide between a first valve seat portion (11) and a second valve seat portion (12) to open or seal the valve seat hole (101). When the fluid flows in the first direction, the metal valve core (2) slides from the second valve seat (12) to the first valve seat (11), and the metal valve core (2) seals the valve seat hole (101), and the one-way conduction component is in a closed state; when the fluid flows in the second direction, the metal valve core (2) slides from the first valve seat (11) to the second valve seat (12), and the metal valve core (2) opens the valve seat hole (101) and abuts against the second valve seat (12), and the one-way conduction component is in a conducting state, so that the fluid flows through the valve seat hole (101) and flows out from the flow hole (102).

2. The unidirectional conduction component according to claim 1, characterized in that, The metal valve core (2) includes a valve core sealing portion (21) for sealing the valve seat bore (101) and a valve core abutting portion (22) for abutting against the second valve seat portion (12), the second valve seat portion (12) including a valve seat sleeve portion. When the metal valve core (2) abuts against the second valve seat (12), the valve core abutting part (22) is sleeved on the inner wall of the valve seat sleeve part.

3. The unidirectional conduction component according to claim 2, characterized in that, The height of the valve core abutment part (22) is L1, and the height of the valve seat sleeve part is L2. Where L1≥L2.

4. The unidirectional conduction component according to claim 3, characterized in that, The height of the valve core sealing part (21) is L3, and the height of the flow hole (102) is L4. Where L4 ≥ L3.

5. The unidirectional conduction member according to any one of claims 1 to 4, characterized in that, Also includes: A silencing element (3) is provided at the valve seat hole (101).

6. The unidirectional conduction component according to claim 5, characterized in that, The silencing element (3) is provided with a fixing hole, the metal valve seat (1) is provided with a sliding shaft, and the metal valve core (2) can slide along the sliding shaft. The sliding shaft of the metal valve seat (1) passes through the fixing hole of the silencing element (3).

7. The unidirectional conduction component according to claim 5, characterized in that, The flow hole (102) includes a first flow hole (1021) located on one side of the metal valve core (2) and a second flow hole (1022) located on the other side of the metal valve core (2). Filter elements are provided at both the first flow hole (1021) and the second flow hole (1022).

8. The unidirectional conduction component according to claim 7, characterized in that, The filter element includes a metal filter screen.

9. A variable flow heat exchanger, characterized in that, Includes the unidirectional conduction member as described in any one of claims 1 to 8.

10. The variable flow heat exchanger according to claim 9, characterized in that, Also includes: The tracheal component (500) includes an air collecting tube (502) and a first unidirectional guiding component (501) disposed within the air collecting tube (502); The liquid conduit component (600) includes a liquid collecting pipe (602) and a second unidirectional guiding component (601) disposed within the liquid collecting pipe (602); and, Multiple heat exchange flow paths are connected between the gas pipe component (500) and the liquid pipe component (600). The multiple heat exchange flow paths include a first heat exchange flow path (701), a second heat exchange flow path (702), and a third heat exchange flow path (703). When the variable flow heat exchanger is used as an evaporator, both the first unidirectional flow member (501) and the second unidirectional flow member (601) are in a conducting state, and the first heat exchange flow path (701), the second heat exchange flow path (702), and the third heat exchange flow path (703) are connected in parallel; when the variable flow heat exchanger is used as a condenser, both the first unidirectional flow member (501) and the second unidirectional flow member (601) are in a closed state, and the first heat exchange flow path (701), the second heat exchange flow path (702), and the third heat exchange flow path (703) are connected in series, and... The first unidirectional conduit (501) is a unidirectional conduit as described in any one of claims 1 to 8, and the first unidirectional conduit (501) is integrally formed with the gas collecting pipe (502); and / or, The second unidirectional conduit (601) is a unidirectional conduit as described in any one of claims 1 to 8, and the second unidirectional conduit (601) is integrally formed with the liquid collection tube (602).

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