One-way conducting component, header component and heat exchanger
By setting a preset spacing between the limit net and the inner wall of the housing in the one-way conducting member, the problem of high noise in the one-way valve during the conducting function is solved, and a lower noise one-way conducting effect is achieved.
Patent Information
- Application Number
- CN202421985244.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-15
AI Technical Summary
Existing one-way valves are prone to noise when exerting the one-way conduction function.
A one-way conducting member is designed, with a preset spacing between the limiting net and the inner wall of the housing, so that the valve core does not come into direct contact with the inner wall of the housing during sliding, thereby reducing noise.
It effectively reduces the noise of the one-way conducting member when exerting the one-way conducting function and improves the silent performance of the equipment.
Smart Images
Figure CN222992252U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of valve components, for example, to a one-way conduction member, a manifold member, and a heat exchanger. Background Art
[0002] Valve components such as check valves are important components in the heat exchanger of an air conditioning system, used to communicate with the heat exchange branch of the heat exchanger to regulate the refrigerant flow direction in the heat exchanger.
[0003] Existing check valves generally include a pipe shell and a valve seat and a limiting plate arranged on the inner wall of the shell. The limiting plate is usually flat, and a guiding through hole is arranged on the valve seat. The valve core of the check valve can move between the valve seat and the limiting plate to make the check valve in a conducting state or a closed state.
[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
[0005] When the existing check valve structure exerts the one-way conduction function, it is easy to generate noise.
[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model
[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preamble to the subsequent detailed description.
[0008] Embodiments of the present disclosure provide a one-way conduction member, a manifold member, and a heat exchanger to solve the problem that a check valve is easy to generate noise.
[0009] In some embodiments, the one-way conduction member includes: a shell, internally forming a fluid flow chamber; a limiting member, including a limiting net arranged in the fluid flow chamber, and there is a preset distance between the limiting net and the inner wall of the shell; a valve seat, arranged on the inner wall of the shell, and the valve seat is provided with a guiding through hole for communicating the fluid flow chamber; and a valve core, which can slide between the limiting member and the valve seat. When the valve core abuts against the limiting member, the guiding through hole of the valve seat is conducted; when the valve core abuts against the valve seat, the guiding through hole of the valve seat is closed, wherein the limiting net protrudes in a direction away from the valve seat.
[0010] In the one-way conduction member provided by the embodiments of the present disclosure, there is a preset distance between the limiting net and the inner wall of the shell. In this way, during the sliding process of the valve core, it does not directly contact the inner wall of the shell, reducing the noise generated when the one-way conduction member exerts the one-way conduction function.
[0011] In some alternative embodiments, the limiting net includes a connection end for fixed connection and a limiting top end for abutting against the valve core, wherein the connection end is connected to the valve seat; alternatively, the limiting member further includes a clamp provided on the inner wall of the housing, and the connection end is connected to the clamp.
[0012] In some alternative embodiments, the diameter or equivalent diameter of the valve core is D1, and the equivalent diameter of the limiting net is D2, wherein when the valve core is spherical, D2 - D1 ≥ 2 mm; or when the valve core is non-spherical, 2 mm ≤ D2 - D1 ≤ 20 mm.
[0013] In some alternative embodiments, the height of the valve core is H1, and the distance from the connection end to the limiting top end of the limiting net is H2, wherein the difference between H2 and H1 is greater than or equal to a first preset value.
[0014] In some alternative embodiments, the first preset value is greater than or equal to 5 mm.
[0015] In some alternative embodiments, the limiting net further includes: a connecting mesh wall connected between the connection end and the limiting top end, wherein the connecting mesh wall includes an upper mesh portion near the limiting top end, and when the valve core abuts against the limiting net, the distance between the valve core and the upper mesh portion is less than or equal to a second preset value.
[0016] In some alternative embodiments, the second preset value is less than or equal to 3 mm.
[0017] In some alternative embodiments, in the direction from the connection end to the limiting top end of the limiting net, the upper mesh portion is in a gradually converging shape.
[0018] In some alternative embodiments, the preset distance between the limiting net and the inner wall of the housing is greater than or equal to 1 mm.
[0019] In some embodiments, the header member includes the one-way conduction member as described above.
[0020] In some embodiments, the heat exchanger includes: a header assembly including a first header member and a second header member, and a heat exchange tube group including a plurality of heat exchange branches, and the heat exchange tube group is communicated between the first header member and the second header member, wherein the first header member and the second header member are the header members as described above.
[0021] In some optional embodiments, the heat exchange branch includes a first heat exchange branch, a second heat exchange branch and a third heat exchange branch, wherein one end of the first heat exchange branch is connected to one side of the conduction outflow end of the one-way conducting component of the first manifold component, and the other end is connected to one side of the conduction outflow end of the one-way conducting component of the second manifold component; one end of the second heat exchange branch is connected to one side of the conduction inflow end of the one-way conducting component of the first manifold component, and the other end is connected to one side of the conduction outflow end of the one-way conducting component of the second manifold component; one end of the third heat exchange branch is connected to one side of the conduction inflow end of the one-way conducting component of the first manifold component, and the other end is connected to one side of the conduction inflow end of the one-way conducting component of the second manifold component.
[0022] The one-way conducting component, the header component and the heat exchanger provided in the embodiments of the present disclosure can achieve the following technical effects:
[0023] The one-way conducting component provided in the embodiment of the present disclosure includes a housing, a stopper, a valve seat and a valve core. The valve seat is arranged on the inner wall of the housing, the stopper includes a stopper net, and a preset distance is provided between the stopper net and the inner wall of the housing. The valve core can slide between the valve seat and the stopper net. When the valve core abuts against the stopper, the conduction hole of the valve seat is conducted, and at this time, the one-way conducting component is in a conducting state; when the valve core abuts against the valve seat, the conduction hole of the valve seat is closed, and at this time, the one-way conducting component is in a closed state.
[0024] In the one-way conducting component provided in the embodiment of the present disclosure, there is a preset distance between the limiting net and the inner wall of the shell, so that the valve core does not directly contact the inner wall of the shell during the sliding process, thereby reducing the noise of the one-way conducting component when performing the one-way conducting function.
[0025] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:
[0027] Figure 1 is a schematic diagram of a one-way conducting component provided by an embodiment of the present disclosure;
[0028] Figure 2 is a schematic diagram of another one-way conducting component provided by an embodiment of the present disclosure;
[0029] Figure 3 is a schematic diagram of another one-way conducting component provided by an embodiment of the present disclosure;
[0030] Figure 4It is a schematic diagram of another one-way conduction component provided by an embodiment of the present disclosure;
[0031] Figure 5 It is a schematic diagram of another one-way conduction component provided by an embodiment of the present disclosure;
[0032] Figure 6 It is a schematic diagram of the one-way conduction component provided by an embodiment of the present disclosure in the conducting state and the closed state;
[0033] Figure 7 is Figure 6 an enlarged view of a selected part in;
[0034] Figure 8 It is a schematic diagram of the limiting member provided by an embodiment of the present disclosure;
[0035] Figure 9 It is a schematic diagram of another limiting member provided by an embodiment of the present disclosure;
[0036] Figure 10 It is a schematic diagram of a heat exchanger provided by an embodiment of the present disclosure;
[0037] Figure 11 It is a schematic diagram of the refrigerant flow path when a heat exchanger provided by an embodiment of the present disclosure is used as a condenser;
[0038] Figure 12 It is a schematic diagram of the refrigerant flow path when a heat exchanger provided by an embodiment of the present disclosure is used as an evaporator.
[0039] Reference numerals:
[0040] 1: housing;
[0041] 21: clamp; 22: limiting net; 221: upper net part;
[0042] 3: valve seat; 31: guide through hole;
[0043] 4: valve core;
[0044] 510: first header member; 520: second header member; 511: first one-way conduction member; 521: second one-way conduction member;
[0045] 611: first heat exchange branch; 612: second heat exchange branch; 613: third heat exchange branch. Detailed implementation manners
[0046] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and illustration purposes only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided 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 shown in a simplified manner to simplify the drawings.
[0047] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.
[0048] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0049] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0050] Unless otherwise specified, the term "plurality" means two or more.
[0051] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.
[0052] The term "and / or" is a description of the associated relationship of an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.
[0053] It should be noted that, without conflict, the embodiments in this disclosure and the features in the embodiments may be combined with each other.
[0054] The embodiments of this disclosure provide a one-way conduction component.
[0055] Optionally, the one-way conduction component includes a housing 1, a limiting member, a valve seat 3, and a valve core 4. A fluid flow chamber is formed inside the housing 1. The limiting member includes a limiting net 22 disposed in the fluid flow chamber, and there is a preset distance between the limiting net 22 and the inner wall of the housing. The valve seat 3 is disposed on the inner wall of the housing, and the valve seat 3 is provided with a through hole 31 for communicating the fluid flow chamber. The valve core 4 can slide between the limiting member and the valve seat 3. When the valve core 4 abuts against the limiting member, the through hole 31 of the valve seat 3 is opened; when the valve core 4 abuts against the valve seat 3, the through hole 31 of the valve seat 3 is closed. Among them, the limiting net 22 protrudes in a direction away from the valve seat 3.
[0056] In the existing one-way valve, the limiting plate in the housing 1 is a rigid structure such as metal, and during the up and down sliding of the valve core 4, it will collide with the inner wall of the housing, thus easily generating noise.
[0057] In the one-way conduction component provided by the embodiments of this disclosure, the limiting member includes a limiting net 22, and there is a preset distance between the limiting net 22 and the inner wall of the housing. In this way, when the valve core 4 slides between the limiting member and the valve seat 3, it does not directly contact the inner wall of the housing, thereby reducing the noise during the one-way conduction process of the one-way conduction component.
[0058] Optionally, with the valve seat 3 as the dividing line, the housing 1 of the one-way conduction component includes a conduction inflow end and a conduction outflow end. The limiting net 22 is disposed in the fluid flow chamber, and the limiting net 22 is located at the conduction outflow end. The limiting net 22 can be indirectly connected to the inner wall of the housing 1.
[0059] It can be understood that the valve seat 3 is provided with a through hole 31 for keeping the fluid flow chamber in a conducting state. When the valve core 4 abuts against the limiting member, the valve core 4 completely avoids the through hole 31 of the valve seat 3, and the hole of the valve seat 3 is opened, and the fluid can flow from the conduction inflow end to the conduction outflow end, and the one-way conduction component is in a conducting state, as shown in B in Figure 6 ; when the valve core 4 abuts against the valve seat 3, the valve core 4 completely blocks the through hole 31 on the valve seat 3, the through hole 31 of the valve seat 3 is closed, and the fluid is blocked at the conduction outflow end, and the one-way conduction component is in a closed state, as shown in A in Figure 6 .
[0060] It can be understood that the valve core 4 can slide between the limiting member and the valve seat 3 under the action of the fluid flow pressure. Optionally, the fluid can be a refrigerant that flows in the heat exchanger of the air-conditioning system for heat exchange.
[0061] Optionally, there is a preset distance between the limiting net 22 and the inner wall of the housing. It can be understood that at least part of the limiting net 22 does not directly contact the inner wall of the housing. Optionally, the whole of the limiting net 22 does not directly contact the inner wall of the housing. It can also be understood that the maximum width of the limiting net 22 is less than the inner diameter D4 of the housing. In this way, it is beneficial to avoid the collision between the valve core 4 and the inner wall of the housing during the sliding process.
[0062] Optionally, the limiting net 22 bulges away from the valve seat 3, as Figures 1 to 9 shown. The bulge here can be understood as that the limiting net 22 forms a net pocket away from the valve seat 3, or it can be understood that the limiting net 22 is non-planar, as Figure 8 and Figure 9 shown. The valve core 4 can slide at the bulged limiting net 22.
[0063] Compared with the existing flat limiting structure, in the one-way conduction component provided by the embodiment of the present disclosure, the limiting member is the net-shaped limiting net 22. In the maintenance structure formed by the net-shaped limiting net 22, the problem of the valve core 4 toppling during the sliding process is reduced.
[0064] Optionally, the valve core 4 is a high-temperature resistant lightweight valve core, or the valve core 4 is a hollow structure.
[0065] Optionally, the limiting net 22 is a high-temperature resistant limiting net, including a metal limiting net, a nylon limiting net, a resin limiting net, etc.
[0066] Optionally, the limiting net 22 includes a connection end for fixed connection and a limiting top end for abutting against the valve core 4, wherein the connection end is connected to the valve seat 3; or, the limiting member further includes a clamp 21 arranged on the inner wall of the housing, and the connection end is connected to the clamp 21.
[0067] Optionally, the connection end of the limiting net 22 can be directly connected to the valve seat 3, as Figure 9 shown. Optionally, the limiting net 22 can further include a clamp 21 arranged on the inner wall of the housing, and the connection end of the limiting net 22 is connected to the clamp 21, as Figure 8 shown.
[0068] It can be understood that the inner diameter D3 of the clamp 21 is greater than the diameter or equivalent diameter D1 of the valve core 4. In this way, the valve core 4 can slide smoothly between the limiting net 22 and the valve seat 3.
[0069] Optionally, the diameter or equivalent diameter of the valve core 4 is D1, and the equivalent diameter of the limiting net 22 is D2. Among them, when the valve core 4 is spherical, D2 - D1 ≥ 2 mm, as Figure 5 shown; or, when the valve core 4 is non-spherical, 2 mm ≤ D2 - D1 ≤ 20 mm, asFigure 2 as shown
[0070] When the valve core 4 is spherical, the diameter of the spherical valve core 4 is D1, and D2 - D1 ≥ 2 mm. In this way, the spherical valve core 4 can slide smoothly within the limiting net 22 and is not prone to tilting. Optionally, when the valve core 4 is spherical, the limiting top end of the limiting net 22 is arc-shaped or hemispherical to increase the contact area between the spherical valve core 4 and the limiting net 22 and improve the contact stability between the valve core 4 and the limiting net 22, as shown in Figure 8 B and Figure 9 as shown
[0071] When the valve core 4 is non-spherical, the valve core 4 includes a first contact end that contacts the limiting net 22 and a second contact end that contacts the valve seat 3. Optionally, the first contact end is square, the end face of the first contact end is a first plane, the second contact end is frustum-shaped, and the end face of the second contact end is a second plane. Optionally, the area of the first plane is larger than the area of the second plane, as shown in Figure 1 as shown. In this way, the valve core 4 can slide smoothly within the limiting net 22 and is not prone to tipping. Optionally, when the end face of the first contact end of the valve core 4 is a first plane, the limiting top end of the limiting net 22 is flat, which increases the contact area between the valve core 4 and the limiting net 22 and improves the contact stability between the valve core 4 and the limiting net 22, as shown in Figure 8 A shown in
[0072] Optionally, the distance between adjacent two wire meshes of the limiting net 22 is less than or equal to 1 / 5 D1. In this way, the limiting net 22 can stably play a contact role on the valve core 4
[0073] Optionally, the height of the valve core 4 is H1, and the distance from the connection end to the limiting top end of the limiting net 22 is H2, where the difference between H2 and H1 is greater than or equal to a first preset value. As shown in Figure 4 as shown
[0074] The distance from the connection end to the limiting top end of the limiting net 22 can be understood as the distance from the connection end to the top of the limiting top end of the limiting net 22, or it can also be understood as the effective distance that the valve core 4 can slide within the limiting net 22. The difference between H2 and H1 is greater than or equal to the first preset value. In this way, the valve core 4 can slide within the limiting net 22 for a sufficient long distance, enabling the valve core 4 to completely conduct the through hole 31 on the valve seat 3, and the fluid can flow from the conducting inlet end to the conducting outlet end. Optionally, the first preset value is greater than or equal to 5 mm
[0075] Optionally, the difference between H2 and H1 is less than or equal to 2 times H1. The sliding distance of the valve core 4 within the limiting net 22 should not be too long. The longer the sliding distance, the more prone the valve core 4 is to tilt during the sliding process
[0076] Optionally, the limiting net 22 further includes: a connecting net wall connected to the connecting end and the limiting top end. The connecting net wall includes an upper net portion 221 near the limiting top end. And when the valve core 4 abuts against the limiting net 22, the distance H3 between the valve core 4 and the upper net portion 221 is less than or equal to a second preset value. As Figure 7 shown.
[0077] Optionally, the upper net portion 221 can be understood as the net portion between the net wall connected to the limiting top end and the net wall corresponding to the bottom end of the valve core 4 when the valve core 4 abuts against the limiting net 22. The maximum distance between the valve core 4 and the upper net portion 221 is less than or equal to the second preset value. In this way, the abutting stability between the valve core 4 and the limiting net 22 is improved. At the same time, the valve core 4 during the sliding process is not prone to tipping. It can be understood that when the valve core 4 abuts against the limiting net 22, the fluid can flow out from the upper net portion 221. Optionally, the second preset value is less than or equal to 3 mm.
[0078] Optionally, in the direction from the connecting end of the limiting net 22 to the limiting top end, the upper net portion 221 is in a gradually converging shape, as Figures 1 to 4 shown. The gradually converging shape can be understood as that the inner diameter of the upper net portion 221 gradually decreases. In this way, the abutting stability of the limiting net 22 against the valve core 4 is improved.
[0079] Optionally, the preset distance between the limiting net 22 and the inner wall of the housing is greater than or equal to 1 mm. In this way, further collision between the valve core 4 and the inner wall of the housing during the sliding process is avoided, and the noise during the sliding process of the valve core 4 is reduced. Optionally, the preset distance between the limiting net 22 and the inner wall of the housing can be selected at the minimum distance between the limiting net 22 and the inner wall of the housing.
[0080] The embodiment of the present disclosure also provides a header member, including the one-way conduction member as described above.
[0081] Optionally, the aforementioned one-way conduction member is integrated into the header member, or the housing 1 of the one-way conduction member is the pipe shell of the header member, that is, when the length of the housing of the one-way conduction member is long enough, the header member is obtained.
[0082] It can be understood that the structures and effects of the aforementioned one-way conduction member are all applicable to the header member here, and will not be elaborated here.
[0083] The embodiment of the present disclosure also provides a heat exchanger.
[0084] It can be understood that the structures and effects of the aforementioned one-way conduction member and the header member are all applicable to the heat exchanger here, and will not be elaborated here.
[0085] Optionally, the heat exchanger includes a header assembly and a heat exchange tube group. The header assembly includes a first header member 510 and a second header member 520. The heat exchange tube group includes a plurality of heat exchange branches, and the heat exchange tube group is connected between the first header member 510 and the second header member 520. Among them, both the first header member 510 and the second header member 520 are the aforementioned header members.
[0086] The first header member 510 includes a first one-way conduction member 511, and the second header member 520 includes a second one-way conduction member 521. The structures of the first one-way conduction member 511 and the second one-way conduction member 521 are the same as the structure of the aforementioned one-way conduction member. And, the conduction directions of the first one-way conduction member 511 and the second one-way conduction member 521 are the same. As Figure 10 shown.
[0087] Both ends of the plurality of heat exchange branches are respectively connected to the first header member 510 and the second header member 520. The first header member 510 and the second header member 520 can enable the plurality of heat exchange branches to form a specific refrigerant flow route, such as a variable shunt type refrigerant flow route.
[0088] Optionally, the heat exchange branch includes a first heat exchange branch 611, a second heat exchange branch 612, and a third heat exchange branch 613. Among them, one end of the first heat exchange branch 611 is connected to the conduction outflow end side of the one-way conduction member of the first header member 510, and the other end is connected to the conduction outflow end side of the one-way conduction member of the second header member 520; one end of the second heat exchange branch 612 is connected to the conduction inflow end side of the one-way conduction member of the first header member 510, and the other end is connected to the conduction outflow end side of the one-way conduction member of the second header member 520; one end of the third heat exchange branch 613 is connected to the conduction inflow end side of the one-way conduction member of the first header member 510, and the other end is connected to the conduction inflow end side of the one-way conduction member of the second header member 520.
[0089] The heat exchanger provided by the embodiment of the present disclosure is a variable shunt heat exchanger.
[0090] When the heat exchanger is used as an evaporator, both the first one-way conduction member 511 in the first header member 510 and the second one-way conduction member 521 in the second header member 520 are in a conduction state. The first heat exchange branch 611, the second heat exchange branch 612, and the third heat exchange branch 613 are connected in parallel. That is, the refrigerant flowing in from the second header member 520 respectively flows into the first heat exchange branch 611, the second heat exchange branch 612, and the third heat exchange branch 613, as Figure 12 shown.
[0091] When the heat exchanger serves as a condenser, the first one-way conduction member 511 in the first header member 510 and the second one-way conduction member 521 in the second header member 520 are both in a closed state. The first heat exchange branch 611, the second heat exchange branch 612, and the third heat exchange branch 613 are connected in series, that is, the refrigerant flowing into the first header member 510 flows through the first heat exchange branch 611, the second heat exchange branch 612, and the third heat exchange branch 613 in sequence, as Figure 11 shown.
[0092] Optionally, the first heat exchange branch 611, the second heat exchange branch 612, and the third heat exchange branch 613 each include a plurality of heat exchange tubes. Optionally, the number of the first heat exchange branches 611 is two, and these two heat exchange branches are arranged in parallel, as Figures 10 to 12 shown.
[0093] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Some parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A one-way conducting component, characterized in that: include: A housing, wherein a fluid flow chamber is formed inside; The limiting member includes a limiting net arranged in the fluid flow chamber, and a preset distance is provided between the limiting net and the inner wall of the shell; A valve seat is disposed on the inner wall of the housing, and the valve seat is provided with a conducting hole for conducting the fluid flow chamber; and, The valve core can slide between the limiter and the valve seat. When the valve core abuts against the limiter, the guide hole of the valve seat is connected; when the valve core abuts against the valve seat, the guide hole of the valve seat is closed. The limiting net protrudes in a direction away from the valve seat.
2. The one-way conducting member according to claim 1, characterized in that: The limiting net includes a connection end for fixed connection and a limiting top end for abutting against the valve core, wherein: The connection end is connected to the valve seat; or, The limiting member also includes a clamping hoop arranged on the inner wall of the shell, and the connecting end is connected to the clamping hoop.
3. The one-way conducting member according to claim 2, characterized in that: The diameter or equivalent diameter of the valve core is D1, and the equivalent diameter of the limit net is D2, where: When the valve core is spherical, D2-D1≥2mm; or, When the valve core is non-spherical, 2mm≤D2-D1≤20mm.
4. The one-way conducting member according to claim 2, characterized in that: The height of the valve core is H1, and the distance from the connection end of the limiter net to the top of the limiter is H2. The difference between H2 and H1 is greater than or equal to a first preset value.
5. The one-way conducting member according to claim 4, characterized in that: The first preset value is greater than or equal to 5 mm.
6. The one-way conducting member according to claim 4, characterized in that: The limit network also includes: Connect the mesh wall, connect the connection end and the limit top, The connecting mesh wall includes an upper mesh portion close to the limiting top end, and when the valve core abuts against the limiting mesh, the distance between the valve core and the upper mesh portion is less than or equal to a second preset value.
7. The one-way conducting member according to claim 6, characterized in that: The second preset value is less than or equal to 3 mm.
8. The one-way conducting member according to claim 6, characterized in that: From the connection end of the limiting net to the limiting top end, the upper end of the net gradually closes.
9. The one-way conducting member according to any one of claims 1 to 8, characterized in that: The preset distance between the limiting net and the inner wall of the shell is greater than or equal to 1 mm.
10. A header component, characterized in that: The invention comprises the one-way conducting member as claimed in any one of claims 1 to 9.
11. A heat exchanger, characterized in that: include: A header assembly includes a first header member and a second header member, The heat exchange tube group includes a plurality of heat exchange branches, and the heat exchange tube group is connected between the first header component and the second header component. The first header member and the second header member are the header members according to claim 10.
12. The heat exchanger according to claim 11, characterized in that The heat exchange branch includes a first heat exchange branch, a second heat exchange branch and a third heat exchange branch. Among them, one end of the first heat exchange branch is connected to the side of the conduction outflow end of the one-way conducting component of the first manifold component, and the other end is connected to the side of the conduction outflow end of the one-way conducting component of the second manifold component; one end of the second heat exchange branch is connected to the side of the conduction inflow end of the one-way conducting component of the first manifold component, and the other end is connected to the side of the conduction outflow end of the one-way conducting component of the second manifold component; one end of the third heat exchange branch is connected to the side of the conduction inflow end of the one-way conducting component of the first manifold component, and the other end is connected to the side of the conduction inflow end of the one-way conducting component of the second manifold component.