Valve body component, heat exchanger and air conditioner

Abstract

The invention relates to the technical field of valve components, and discloses a valve body component which comprises a tubular shell, a valve seat, a shaft rod, a guide piece, a partition plate and an abutting elastic piece. A first fluid inlet and outlet and a second fluid inlet and outlet are formed in the two ends of the tubular shell respectively, the valve seat is arranged on the inner wall of the tubular shell, and the shaft rod is sleeved with the guide piece and the abutting elastic piece. Wherein the guide piece comprises a bottom face facing the first cavity and a top face facing the second cavity, the abutting end of the abutting elastic piece abuts against the top face of the guide piece, when fluid flows in from the first fluid inlet and outlet, the guide piece is impacted by the fluid to rotate and abuts against the abutting end of the abutting elastic piece, the circulation opening is communicated, and the fluid flows into the second cavity from the first cavity; and when the fluid flows in from the second fluid inlet and outlet, the guide sheet is closed at the circulating opening, and the fluid is stopped in the second cavity. The valve body component can play a role of a one-way valve, and one-way connection is achieved. The invention further provides the heat exchanger and the air conditioner.

Description

Technical Field

[0001] This application relates to the technical field of valve components, for example, to a valve body component, a heat exchanger, and an air conditioner. Background Art

[0002] There are many models of existing air conditioner products. Taking split air conditioners as an example, generally, a refrigerant circulation circuit is composed of a compressor, an outdoor heat exchanger, a throttling device, and an indoor heat exchanger, and the flow direction of the refrigerant in the refrigerant circulation circuit is changed by a four-way valve, so that the air conditioner can realize refrigeration and heating modes. Among them, the heat exchange efficiency of the heat exchanger of the air conditioner can directly affect the refrigeration and heating performance of the air conditioner. It can be seen that the heat exchanger is an important component of the air conditioner.

[0003] Taking the outdoor heat exchanger as an example, when the air conditioner operates in the refrigeration mode, the outdoor heat exchanger serves as a condenser. To improve the refrigeration efficiency during the refrigeration operation of the air conditioner, a subcooling section is provided on some heat exchangers to utilize the subcooling section to extend the length of the flow path of the high-temperature refrigerant in the heat exchanger, so as to achieve the purpose of sufficient heat exchange. When the air conditioner operates in the heating mode, the outdoor heat exchanger serves as an evaporator, and the flow direction of the refrigerant is completely opposite to that in the refrigeration mode. At this time, more refrigerant branches are required. It can be seen that the optimal refrigerant flow path of the outdoor heat exchanger is different when the air conditioner operates in the refrigeration mode and the heating mode. In the related art, by setting pipeline and valve components such as bypass pipelines, check valves, and flow dividing valves on the heat exchanger, different refrigerant flow paths can be obtained for the heat exchanger in different operating modes, realizing variable flow division.

[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] The bypass pipe section is generally arranged on one side of the outside of the heat exchanger body, and the conventional check valve has a large volume. After installing the check valve on the bypass pipe section, the overall volume of the heat exchanger is large, occupying a large installation space, which is not conducive to the miniaturization of the outdoor heat exchanger or the indoor heat exchanger.

[0006] It should be noted that the information disclosed in the above background art section is only used to strengthen the understanding of the background of the present 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 Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a comprehensive review, nor is it intended to identify key / important constituent elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] Embodiments of the present disclosure provide a valve body member, a heat exchanger, and an air conditioner. The valve body member can be part of the header of the heat exchanger and is integrally disposed within the header. Alternatively, the valve body member can replace the header of the heat exchanger, solving the problem of increased volume caused by using a conventional one-way valve to achieve variable flow splitting in the heat exchanger.

[0009] Embodiments of the present disclosure provide a valve body member.

[0010] The valve body member provided by the embodiments of the present disclosure includes: a tubular housing with a first fluid inlet / outlet and a second fluid inlet / outlet at both ends; a valve seat disposed on the inner wall of the tubular housing. The valve seat includes a first part provided with a flow port and a second part provided with a blocking member, and the interior of the tubular housing includes a first chamber located between the first fluid inlet / outlet and the flow port, and a second chamber located between the second fluid inlet / outlet and the flow port; a shaft rod connected to the valve seat and disposed on the side of the blocking member facing the second chamber; a guide piece covering the flow port, with the first end rotatably sleeved on the shaft rod and the second end abutting against the valve seat; a partition disposed in the second chamber of the tubular housing; a abutting elastic member sleeved on the shaft rod and provided with an abutting end abutting against the guide piece. Among them, the guide piece includes a bottom surface facing the first chamber and a top surface facing the second chamber, and the abutting end of the abutting elastic member abuts against the top surface of the guide piece. When the fluid flows in from the first fluid inlet / outlet, the guide piece is impacted by the fluid and rotates, and abuts against the abutting end of the abutting elastic member, and the flow port is opened, and the fluid flows from the first chamber into the second chamber; when the fluid flows in from the second fluid inlet / outlet, the guide piece closes at the flow port, and the fluid is blocked in the second chamber.

[0011] In some alternative embodiments, the blocking member includes a blocking portion and a free end connected to the blocking portion and facing the flow port. The free end includes a support boss protruding towards the second chamber, and the shaft rod is disposed at the support boss of the blocking member.

[0012] In some alternative embodiments, the free end includes a connecting edge connected to the blocking portion and a free edge facing the flow port, and the support protrusion slopes upward from the connecting edge to the free edge.

[0013] In some alternative embodiments, the first end of the guide piece is inclined, and the inclination angle of the first end of the guide piece is the same as the inclination angle of the support protrusion.

[0014] In some alternative embodiments, the first end of the guide piece includes a first inclined top surface and a first inclined bottom surface, and the inclination angles of the first inclined top surface and the first inclined bottom surface are the same. Among them, the abutting end of the abutting elastic member abuts against the first inclined top surface, and the length of the abutting end is less than or equal to the length of the first inclined top surface.

[0015] In some alternative embodiments, the guide piece further includes a cover plate portion disposed between its first end and second end, and the cover plate portion includes a cover top plate and a cover bottom plate. Wherein, the valve body member further includes a reset elastic member, one end of which is fixedly connected to the partition plate, and the other end is used to abut against the cover top plate of the guide piece when the guide piece is in the conducting state.

[0016] In some alternative embodiments, the reset elastic member is disposed obliquely and slopes downward from the partition plate towards the guide piece.

[0017] In some alternative embodiments, the partition plate is provided with a reserved passage, and the reserved passage is disposed above the reset elastic member.

[0018] The embodiments of the present disclosure further provide a heat exchanger.

[0019] The heat exchanger provided by the embodiments of the present disclosure includes the valve body member as described above.

[0020] The embodiments of the present disclosure further provide an air conditioner.

[0021] The air conditioner provided by the embodiments of the present disclosure includes the heat exchanger as described above.

[0022] The valve body member, heat exchanger and air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0023] The valve body member provided by the embodiments of the present disclosure includes a tubular housing, a valve seat, a shaft rod, a guide piece, a partition plate and an abutting elastic member. Wherein, the two ends of the tubular housing are respectively a first fluid inlet and outlet and a second fluid inlet and outlet; the first part of the valve seat is provided with a flow port, and the second part is provided with a blocking member, and the valve seat divides the internal cavity of the tubular housing into a first cavity and a second cavity. The shaft rod is disposed on the side of the blocking member of the valve seat facing the second cavity; the guide piece is rotatably disposed to cover the flow port, its first end is rotatably sleeved on the rotating shaft, and the second end abuts against the valve seat. Wherein, the guide piece includes a bottom surface facing the first cavity and a top surface facing the second cavity, and the abutting end of the abutting elastic member abuts against the top surface of the guide piece. When the fluid flows in from the first fluid inlet and outlet, the guide piece is impacted by the fluid and rotates, and abuts against the abutting end of the abutting elastic member, and the flow port is conducted, and the fluid flows from the first cavity into the second cavity; when the fluid flows in from the second fluid inlet and outlet, the guide piece closes at the flow port, and the fluid is blocked in the second cavity. It can be seen that the valve body member provided by the embodiments of the present disclosure can automatically realize the one-way conduction of the fluid according to the inflow direction of the fluid.

[0024] The valve body member provided by the embodiments of the present disclosure is composed of mechanical structures such as a tubular housing, a valve seat, a shaft rod, a guide piece and an abutting elastic member. Moreover, the tubular housing of the valve body member can directly serve as the header of the heat exchanger, or as a part of the header of the heat exchanger, without having to install the valve body member outside the header of the heat exchanger, reducing the volume of the heat exchanger.

[0025] The above general description and the following description are merely exemplary and explanatory, and are not intended to limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] One or more embodiments are exemplarily illustrated by corresponding drawings, and these exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and wherein:

[0027] Figure 1 is a schematic structural diagram of a valve body member provided by an embodiment of the present disclosure;

[0028] Figure 2 is Figure 1 an enlarged view of a selected part in

[0029] Figure 3 is a schematic structural diagram of a guide piece provided by an embodiment of the present disclosure;

[0030] Figure 4 is a top view of a valve body member provided by an embodiment of the present disclosure;

[0031] Figure 5 is a schematic structural diagram of another valve body member provided by an embodiment of the present disclosure;

[0032] Figure 6 is a schematic structural diagram of another valve body member provided by an embodiment of the present disclosure;

[0033] Figure 7 is a schematic structural diagram of another valve body member provided by an embodiment of the present disclosure;

[0034] Figure 8 is a schematic structural diagram of a heat exchanger provided by an embodiment of the present disclosure;

[0035] Figure 9 is a schematic diagram of the refrigerant flow path of the heat exchanger provided by an embodiment of the present disclosure.

[0036] Reference Numerals:

[0037] 100: header assembly; 101: first fluid inlet / outlet; 102: second fluid inlet / outlet; 110: first header; 111: first chamber; 112: second chamber; 113: deflector; 120: second header; 130: flat tube assembly; 131: first flat tube; 132: second flat tube; 133: third flat tube; 140: first main pipeline; 150: second main pipeline;

[0038] 210: Valve seat; 220: Plugging member; 221: Plugging portion; 222: Free end; 2221: Free edge; 2222: Connecting edge; 223: Flow port; 230: Shaft rod; 240: Guide piece; 241: First end of the guide piece; 2411: First inclined top surface; 2412: First inclined bottom surface; 242: Second end of the guide piece; 243: Cover plate portion; 2431: Cover top plate; 2432: Cover bottom plate; 251: Contact elastic member; 252: Reset elastic member; 260: Partition plate; 261: Reserved passageway. Detailed implementation manners

[0039] In order to be able 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 accompanying drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a sufficient understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0040] In the embodiments of the present disclosure, the terms "first", "second", etc. in the description and claims of the present disclosure and the above-mentioned accompanying drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of the present disclosure here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0041] 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 accompanying drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments and are not used to limit that the indicated device, element or component must have a specific orientation or be constructed and operated in a specific orientation. And, 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.

[0042] In addition, the terms "arranged", "connected", and "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, components, or parts. 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.

[0043] Unless otherwise specified, the term "plurality" means two or more.

[0044] 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.

[0045] The term "and / or" is an associative relationship describing an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0046] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0047] The embodiments of the present disclosure provide a valve body member, as Figures 1 to 7 shown.

[0048] The valve body member provided by the embodiments of the present disclosure includes a tubular housing, a valve seat 210, a shaft rod 230, a guide piece 240, a partition plate 260, and an abutting elastic member 251. The two ends of the tubular housing are respectively a first fluid inlet / outlet 101 and a second fluid inlet / outlet 102; the valve seat 210 is arranged on the inner wall of the tubular housing, and the valve seat 210 includes a first part provided with a flow port 223 and a second part provided with a blocking member 220, and the interior of the tubular housing includes a first chamber 111 located between the first fluid inlet / outlet 101 and the flow port 223, and, a second chamber 112 located between the second fluid inlet / outlet 102 and the flow port 223; the shaft rod 230 is connected to the valve seat 210 and is arranged on the side of the blocking member 220 facing the second chamber 112; the guide piece 240 covers the flow port 223, the first end is rotatably sleeved on the shaft rod 230, and the second end abuts against the valve seat 210; the partition plate 260 is arranged in the second chamber 112 of the tubular housing; the abutting elastic member 251 is sleeved on the shaft rod 230 and is provided with an abutting end that abuts against the guide piece 240.

[0049] Among them, the guide vane 240 includes a bottom surface facing the first chamber 111 and a top surface facing the second chamber 112, and the abutting end of the abutting elastic member 251 abuts against the top surface of the guide vane 240. When the fluid flows in from the first fluid inlet and outlet 101, the guide vane 240 is impacted by the fluid and rotates, and abuts against the abutting end of the abutting elastic member 251. The flow port 223 is connected, and the fluid flows from the first chamber 111 into the second chamber 112; when the fluid flows in from the second fluid inlet and outlet 102, the guide vane 240 closes at the flow port 223, and the fluid ends at the second chamber 112.

[0050] The embodiment of the present disclosure provides a valve body component that can achieve one-way flow of fluid. When fluid flows into the second fluid inlet and outlet 102 of the tubular housing, the top surface of the guide vane 240 is subjected to the flow pressure of the fluid. At this time, the pressure on the bottom surface of the guide vane 240 is less than the sum of the pressure on the top and the weight of the guide vane 240. The guide vane 240 closes the flow port 223, and the fluid is cut off from the second chamber 112. At this time, it is in a closed state, and the abutting elastic member 251 is in a free state without abutting against the guide vane 240. Figure 1 shown.

[0051] When the fluid flows in from the first fluid inlet and outlet 101 of the tubular housing, the bottom surface of the guide vane 240 is subjected to the flow pressure of the fluid. At this time, the pressure on the bottom surface of the guide vane 240 is greater than the sum of the weight of the guide vane 240 on the top surface and the elastic force of the abutting elastic member 251. The guide vane 240 is impacted by the fluid and rotates. The guide vane 240 is lifted up by the fluid, and the flow port 223 is connected. The fluid flows from the first chamber 111 into the second chamber 112. At this time, it is in a conductive state, and the abutting elastic member 251 is in an extruded state abutting against the guide vane 240, as shown in FIG. Figure 5 shown.

[0052] It can be seen that the embodiment of the present disclosure provides a valve body component that can achieve one-way conduction of fluid. Figure 1 and Figure 5 The direction shown in is the vertical installation direction of the valve body component in the use state. The first fluid inlet and outlet 101 is the fluid inlet and outlet of the lower part of the tubular shell, the second fluid inlet and outlet 102 is the fluid inlet and outlet of the upper part of the tubular shell, the first chamber 111 is the lower chamber of the tubular shell, and the second chamber 112 is the upper chamber of the tubular shell. When the fluid flows into the second fluid inlet and outlet 102 of the tubular shell, the flow direction of the fluid can be from the top. When the fluid flows into the first fluid inlet and outlet 101 of the tubular shell, the flow direction of the fluid can be from the bottom to the top, as shown in FIG. Figure 5 shown.

[0053] The valve body component provided by the embodiments of the present disclosure automatically realizes the one-way conduction of fluid inside the tubular housing by utilizing the relationship among the flow pressure of the fluid, the self-gravity of the guide piece 240, and the elastic force of the abutting elastic member 251. Moreover, the structure is simple and is suitable for installation with the header of the heat exchanger. Further, for the valve body component provided by the embodiments of the present disclosure, when the length of the tubular housing is long enough, the tubular housing can replace the header in the heat exchanger. In other words, the header in the heat exchanger is used as the tubular housing of the valve body component in the embodiments of the present disclosure. In this way, the header of the heat exchanger can simultaneously achieve one-way conduction, that is, the one-way conduction function is integrated inside the header of the heat exchanger, eliminating the need to additionally install valve body components such as one-way valves, saving the installation space of the heat exchanger.

[0054] Optionally, the fluid can be a heat transfer medium such as refrigerant or water.

[0055] Optionally, the area of the guide piece 240 is greater than or equal to the area of the flow port 223, such that in the closed state, the guide piece 240 is in a state of completely abutting against the valve seat 210, and the guide piece 240 can completely close the flow port 223. In the conducting state, the guide piece 240 does not abut against the valve seat 210, and the fluid flows from the first chamber 111 to the second chamber 112 through the flow port 223, as Figure 5 shown.

[0056] Optionally, the valve seat 210 is arranged in a circle along the inner wall of the tubular housing.

[0057] As Figure 4 shown, the valve seat 210 is arranged in a circle along the inner wall of the tubular housing, that is, at the position where the valve seat 210 is arranged inside the tubular housing, there is no gap between the valve seat 210 and the inner wall of the tubular housing. At the installation position of the valve seat 210, the fluid can only flow through the flow port 223 of the valve seat 210 and cannot flow between the valve seat 210 and the tubular housing, which is conducive to realizing the one-way conduction of the valve body component.

[0058] Optionally, the valve seat 210 includes a bottom surface facing the first chamber 111 and a top surface facing the second chamber 112. Among them, the bottom surface of the valve seat 210 is provided with an arc chamfer. In this way, when the valve body component is in the conducting state, the forward impact and pressure loss of the fluid on the bottom surface of the guide piece 240 are reduced.

[0059] Optionally, the inner wall of the tubular housing includes a first position at the first horizontal position, where the valve seat 210 is arranged.

[0060] The valve seat 210 is disposed at a first position within the tubular housing and is horizontally arranged within the tubular housing. When the valve body member is in a vertical installation state, the valve seat 210 is in a horizontal state, and when in the closed state, the guide piece 240 is also in a horizontal state. Optionally, the present disclosure embodiment does not overly limit the specific position of the first horizontal position within the tubular housing. Specifically, the position of the valve seat 210 within the tubular housing can be set according to the position where the header of the heat exchanger needs one-way conduction.

[0061] The valve seat 210 includes a first portion provided with a flow port 223 and a second portion provided with a blocking member 220. Optionally, the valve seat 210 is circular. Dividing the valve seat 210 by a set diameter thereof, the first portion and the second portion of the valve seat 210 are obtained. The first portion is provided with the flow port 223, and the second portion is in a blocking shape provided with the blocking member 220. When the fluid flows in from the second fluid inlet / outlet 102, the guide piece 240 in the closed state and the blocking member 220 together perform a blocking function to block the fluid in the second chamber 112.

[0062] The shaft rod 230 is connected to the valve seat 210 and is disposed on the side of the blocking member 220 facing the second chamber 112. As Figure 1 shown, the guide piece 240 can block the flow port 223 on the side of the second chamber 112. Optionally, the shaft rod 230 is parallel to the set diameter of the valve seat 210.

[0063] The first end 241 of the guide piece and the abutting elastic member 251 are both sleeved on the shaft rod 230. The sleeving manner of the guide piece 240 and the abutting elastic member 251 on the shaft rod 230 can be that sleeve buckles are respectively provided at both ends of the guide piece 240, and the two sleeve buckles are rotatably sleeved on both ends of the shaft rod 230. The abutting elastic member 251 can be a spring, and the spring is sleeved on the middle of the shaft rod 230. As Figure 4 shown, in this way, the abutting end of the abutting elastic member 251 can abut against the middle of the guide piece 240, improving the abutting stability of the guide piece 240.

[0064] Optionally, the blocking member 220 includes a blocking portion 221 and a free end 222 connected to the blocking portion 221 and facing the flow port 223. The free end 222 includes a support boss protruding towards the second chamber 112. Among them, the shaft rod 230 is disposed at the support boss of the blocking member 220.

[0065] The blocking portion 221 and the free end 222 of the blocking member 220 can be integrally formed or two split structures connected together by a fixed connection method. Optionally, the area of the blocking portion 221 is less than or equal to half of the cross-sectional area of the tubular housing. The shaft rod 230 is disposed at the support boss of the blocking member 220, and the support boss protrudes towards the second chamber 112.

[0066] Optionally, the free end 222 includes a connecting edge 2222 connected to the blocking portion 221 and a free edge 2221 facing the circulation port 223, wherein the support protrusion inclines upward from the connecting edge 2222 to the free edge 2221.

[0067] It can be understood that when the blocking portion 221 of the blocking member 220 is integrally formed with the free end 222, the connecting edge 2222 can be a virtual edge. The support boss of the free end 222 inclines upward from the connecting edge 2222 to the free edge 2221. To form an inclined support for the first end 241 of the guide piece towards the second chamber 112. Optionally, the support boss includes a support bottom equal to the blocking portion 221 and a protruding portion protruding upward from the support bottom, wherein the height of the highest point of the protruding portion is less than or equal to the thickness of the support bottom. In this way, the protrusion of the support boss is not too high, improving the support stability for the guide piece 240.

[0068] Optionally, the first end 241 of the guide piece is inclined, and the inclination angle of the first end 241 of the guide piece is the same as the inclination angle of the support protrusion. In this way, the support stability of the first end 241 of the guide piece at the support boss is improved.

[0069] Optionally, the first end 241 of the guide piece includes a first inclined top surface 2411 and a first inclined bottom surface 2412, and the inclination angles of the first inclined top surface 2411 and the first inclined bottom surface 2412 are the same, wherein the abutting end of the abutting elastic member 251 abuts against the first inclined top surface 2411, and the length of the abutting end is less than or equal to the length of the first inclined top surface 2411.

[0070] As Figure 2 and Figure 3 shown, the inclination angles of the first inclined top surface 2411 and the first inclined bottom surface 2412 of the first end 241 of the guide piece are the same, that is, it can also be understood that the first inclined top surface 2411 and the first inclined bottom surface 2412 of the first end 241 of the guide piece are parallel to each other. The abutting end of the abutting elastic member 251 abuts against the guide piece 240 in a form of fully abutting against the first inclined top surface 2411. When the length of the abutting end is less than or equal to the length of the first inclined top surface 2411, a good abutting against the guide piece 240 can be achieved.

[0071] Optionally, the guide piece 240 further includes a covering plate portion 243 disposed between its first end and second end. The covering plate portion 243 includes a covering top plate 2431 and a covering bottom plate 2432. Optionally, the second end 242 of the guide piece is disposed in the same plane as the covering plate portion 243. In this way, when the guide piece 240 is in a closed state, the first end 241 of the guide piece is inclined towards the second chamber 112, and the covering plate portion 243 and the second end of the guide piece 240 are horizontally disposed. When the guide piece 240 is in a conducting state, the first end 241 of the guide piece may form a relatively large inclination angle under the action of the impact force of the fluid. For example, an inclination angle of 90° is formed. In this state, the covering plate portion 243 and the second end of the guide piece 240 tend to incline towards the flow port 223 side. That is, with this structure of the guide piece 240, the problem that the guide piece 240 inclines towards the partition plate 260 under the action of a large fluid impact force and the guide piece 240 cannot return to the closed state will not occur. In this way, the stability of the guide piece 240 in exerting its one-way conduction function is improved. As Figure 5 shown.

[0072] Optionally, the valve body member further includes a reset elastic member 252, one end of which is fixedly connected to the partition plate 260, and the other end is used to abut against the covering top plate 2431 of the guide piece 240 when the guide piece 240 is in a conducting state.

[0073] When the impact force of the fluid from the first chamber 111 is too large, or when the valve body member has been used for a long time, the abutting elastic member 251 may have a problem of decreasing abutting force on the guide piece 240. In this way, the guide piece 240 may incline towards the partition plate 260, making the guide piece 240 unable to return to the closed state. The valve body member provided in the embodiment of the present disclosure further includes a reset elastic member 252. The reset elastic member 252 is used to abut against the covering top plate 2431 of the guide piece 240 when the guide piece 240 is in a conducting state. When the abutting force of the abutting elastic member 251 on the guide piece 240 decreases or is insufficient, the guide piece 240 can return to the closed state under the action of the reset elastic member 252.

[0074] Optionally, the reset elastic member 252 is horizontally disposed, and the free length of the reset elastic member 252 is H1. When the first end 241 of the guide piece is in a vertical state, the reset elastic member 252 abuts against the reset abutting position of the covering top plate 2431 of the guide piece 240, and the horizontal distance from the reset abutting position to the partition plate 260 is equal to the free length H1 of the reset elastic member 252. In this way, the reset elastic member 252 can play the abutting function on the guide piece 240 in time, as Figure 5 shown.

[0075] Optionally, the partition plate 260 is provided with a reserved passage 261, and the reserved passage 261 is disposed above the reset elastic member 252, as Figure 5 shown.

[0076] Optionally, the reset elastic member 252 is inclined and slopes downward from the partition plate 260 towards the guide piece 240. The inclined reset elastic member 252 improves the abutting effect on the guide piece 240, which is beneficial to restoring the guide piece 240 to the closed state, as Figure 6 shown.

[0077] Optionally, a first horizontal distance H2 is provided between the shaft rod 230 and the free edge 2221. A second horizontal distance H3 is provided between the shaft rod 230 and the partition plate 260, wherein the first horizontal distance H2 is less than or equal to the second horizontal distance H3.

[0078] As Figure 7 shown, the first horizontal distance H2 between the shaft rod 230 and the free edge 2221 of the plugging member 220 is not too large, so that the guide piece 240 can improve the sealing performance of the flow port 223 in the closed state. Optionally, the second horizontal distance H3 between the shaft rod 230 and the partition plate 260 is not too small, so that more elastic deformation distance is provided for the reset elastic member 252, thereby improving the abutting function of the reset elastic member 252 on the guide piece 240.

[0079] Optionally, the maximum distance between the partition plate 260 and the tubular housing on one side of the plugging member 220 is greater than or equal to the distance between the partition plate 260 and the free edge 2221 of the plugging member 220. In this way, a larger flow space is provided for the fluid between the partition plate 260 and the inner wall of the tubular housing.

[0080] Optionally, a first baffle 113 is further provided in the first chamber 111 of the tubular housing. Optionally, the first baffle 113 is disposed directly below the partition plate 260, and a reserved hole is provided between the first baffle 113 and the plugging member 220.

[0081] The embodiment of the present disclosure further provides a heat exchanger including the foregoing valve body member, as Figure 8 and Figure 9 shown.

[0082] The embodiment of the present disclosure provides a heat exchanger, including a header assembly and a heat exchange tube assembly. The header assembly 100 includes a first header 110 and a second header 120. The first header 110 is provided with a first valve body member, and the first upper header of the first header 110 is connected to the tubular housing of the first valve body member and is in communication with the second chamber 112. The first lower header of the first header 110 is connected to the tubular housing of the first valve body member and is in communication with the first chamber 111, so that the first chamber 111 is communicated with the first main pipeline 140. Among them, the first upper header, the tubular housing and the first lower header of the first header 110 are arranged in sequence from top to bottom in the vertical direction. It can be understood that the structure of the first valve body member is the same as that of the foregoing valve body member.

[0083] Similarly, the second header 120 is provided with a second valve body member. The second upper header of the second header 120 is connected to the tubular housing of the second valve body member and is in communication with the second chamber 112. The second lower header of the second header 120 is connected to the tubular housing of the second valve body member and is in communication with the first chamber 111, such that the second chamber 112 communicates with the second main pipeline 150. The second upper header, the tubular housing, and the second lower header of the second header are arranged in sequence from top to bottom in the vertical direction. Optionally, there is no partition and no first baffle in the second valve body member, and other structures are the same as those of the foregoing valve body member.

[0084] The heat exchange tube assembly may be a flat tube assembly 130, and the flat tube assembly 130 includes a first flat tube 131, a second flat tube 132, and a third flat tube 133.

[0085] The first end of the first flat tube 131 communicates with the first chamber 111 of the first valve body member of the first header 110, and its second end communicates with the first chamber 111 of the second valve body member of the second header 120; the first end of the second flat tube 132 communicates with the second chamber 112 of the first valve body member of the first header 110, and its second end communicates with the first chamber 111 of the second valve body member of the second header 120; the first end of the third flat tube 133 communicates with the second chamber 112 of the first valve body member of the first header 110, and its second end communicates with the second chamber 112 of the second valve body member of the second header 120.

[0086] The embodiment of the present disclosure further provides another heat exchanger, including a first valve body member, a second valve body member, and a flat tube assembly. The structure of the first valve body member is the same as that of the foregoing valve body member. There is no partition and no first baffle in the second valve body member, and other structures are the same as those of the foregoing valve body member. Among them, the first end of the first flat tube 131 communicates with the first chamber 111 of the first valve body member, and its second end communicates with the first chamber 111 of the second valve body member; the first end of the second flat tube 132 communicates with the second chamber 112 of the first valve body member, and its second end communicates with the first chamber 111 of the second valve body member; the first end of the third flat tube 133 communicates with the second chamber 112 of the first valve body member, and its second end communicates with the second chamber 112 of the second valve body member. That is, in the embodiment of the present disclosure, the tubular housing of the valve body member is directly used as the header of the heat exchanger, playing the role of one-way conduction and splitting flow with the flat tubes of the heat exchanger.

[0087] It can be understood that the difference between the foregoing two embodiments is that when the length of the tubular housing of the valve body member is insufficient, the tubular housing of the valve body member can be used as a part of the header of the heat exchanger; when the length of the tubular housing of the valve body member is long enough, the tubular housing of the valve body member can be used as the entire header.

[0088] In this embodiment, the heat exchanger includes a microchannel heat exchanger, and the number of the first flat tube 131 to the third flat tube 133 each includes one or more.

[0089] As Figure 9 shown in a, when the refrigerant enters the heat exchanger from the first main pipeline 140, both valve body members in the heat exchanger are in a conducting state. The refrigerant in the first main pipeline 140 enters the first header 110 or the first chamber 111 of the first valve body member. The refrigerant in its first chamber 111 has two branches: one branch flows through the first flat tube 131 to the second header 120 or the first chamber 111 of the second valve body member, and the other branch flows through the communication port 223 to the first header 110 or the second chamber 112 of the first valve body member. The refrigerant in the first header 110 or the second chamber 112 of the first valve body member has two branches after crossing the partition: one branch flows through the second flat tube 132 to the second header 120 or the first chamber 111 of the second valve body member, and the other branch flows through the third flat tube 133 to the second header 120 or the second chamber 112 of the second valve body member. The refrigerant in the first chamber 111 of the second header 120 or the second valve body member flows through the communication port 223 to its second chamber 112 and continues to flow out of the heat exchanger through the second main pipeline 150. It can be seen that the first flat tube 131, the second flat tube 132, and the third flat tube 133 are in a parallel relationship.

[0090] As Figure 9 shown in b, when the refrigerant enters the heat exchanger from the second main pipeline 150, the valve body member in the heat exchanger is in a closed state. The refrigerant in the second main pipeline 150 enters the second header 120 or the second chamber 112 of the second valve body member. The refrigerant in its second chamber 112 flows through the third flat tube 133 to the second header 120 or the second chamber 112 of the first valve body member. The refrigerant in the second chamber 112 of the first header 110 or the first valve body member flows through the reserved passage of the partition and through the second flat tube 132 to the second header 120 or the first chamber 111 of the second valve body member. The refrigerant in the first chamber 111 of the second header 120 or the second valve body member flows through the first flat tube 131 and crosses the first baffle to flow to the first header 110 or the first chamber 111 of the first valve body member and continues to flow out of the heat exchanger through the first main pipeline 140. It can be seen that the first flat tube 131, the second flat tube 132, and the third flat tube 133 are in a series relationship.

[0091] Optionally, the first main pipeline 140 is connected and communicated with the first fluid inlet / outlet 101 of the first valve body member, and the second main pipeline 150 is connected and communicated with the second fluid inlet / outlet 102 of the second valve body member.

[0092] Optionally, when the heat exchanger serves as an evaporator, the refrigerant enters through the first main pipeline 140 and flows out through the second main pipeline 150. The two valve body components inside the heat exchanger are in a conducting state, and the first flat tube 131, the second flat tube 132, and the third flat tube 133 are in a parallel relationship. When the heat exchanger serves as a condenser, the refrigerant enters through the second main pipeline 150 and flows out through the first main pipeline 140. The two valve body components inside the heat exchanger are in a closed state, and the first flat tube 131, the second flat tube 132, and the third flat tube 133 are in a series relationship, which increases the subcooling degree of the refrigerant and thus improves the heat exchange effect of the condenser.

[0093] In this embodiment, the valve body component automatically adjusts its state when the refrigerant flows in different directions, switching between the conducting state and the closed state, so that the refrigerant flow path in the heat exchanger is different under different working conditions, realizing variable flow splitting. Moreover, when the heat exchanger serves as an evaporator, there are multiple branches, effectively reducing the frictional pressure drop along the way. When the heat exchanger serves as a condenser, there are fewer branches, thus increasing the refrigerant flow rate and the heat transfer coefficient on the inner side of the tube. In this way, the heat exchange capacity of the heat exchanger is improved.

[0094] Optionally, the heat exchanger provided in the embodiments of the present disclosure can serve as a heat exchange unit. In a complete heat exchange system, multiple such heat exchange units can be included and arranged in parallel or in series.

[0095] The embodiments of the present disclosure provide an air conditioner including the heat exchanger described in any of the above embodiments.

[0096] It can be understood that in order to make the heat exchanger applicable to different types of air conditioners, the specific shape of the heat exchanger is not limited in this application.

[0097] The above description and the drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations can vary. 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 only limited by the appended claims.

Claims

1. A valve body member, characterized in that, Comprising: A tubular housing with a first fluid inlet / outlet and a second fluid inlet / outlet at both ends respectively; A valve seat disposed on the inner wall of the tubular housing. The valve seat includes a first part provided with a flow port and a second part provided with a blocking member. And the interior of the tubular housing includes a first chamber located between the first fluid inlet / outlet and the flow port, and a second chamber located between the second fluid inlet / outlet and the flow port; A shaft rod connected to the valve seat and disposed on the side of the blocking member facing the second chamber; A guide piece covering the flow port, with the first end rotatably sleeved on the shaft rod and the second end abutting against the valve seat; A partition plate disposed in the second chamber of the tubular housing; An abutting elastic member sleeved on the shaft rod and provided with an abutting end abutting against the guide piece, wherein the guide piece includes a bottom surface facing the first chamber and a top surface facing the second chamber. The abutting end of the abutting elastic member abuts against the top surface of the guide piece. When the fluid flows in from the first fluid inlet / outlet, the guide piece is impacted by the fluid and rotates, and abuts against the abutting end of the abutting elastic member, and the flow port is opened, and the fluid flows from the first chamber into the second chamber; when the fluid flows in from the second fluid inlet / outlet, the guide piece closes at the flow port, and the fluid is blocked in the second chamber.

2. The valve body member according to claim 1, characterized in that, The blocking member includes a blocking portion and a free end connected to the blocking portion and facing the flow port. The free end includes a support boss protruding towards the second chamber, wherein the shaft rod is disposed at the support boss of the blocking member.

3. The valve body member according to claim 2, characterized in that, The free end includes a connecting edge connected to the blocking portion and a free edge facing the flow port, wherein the support protrusion slopes upward from the connecting edge towards the free edge.

4. The valve body member according to claim 3, characterized in that, The first end of the guide piece is inclined, and the inclination angle of the first end of the guide piece is the same as the inclination angle of the support protrusion.

5. The valve body member according to claim 4, characterized in that, The first end of the guide piece includes a first inclined top surface and a first inclined bottom surface, and the inclination angles of the first inclined top surface and the first inclined bottom surface are the same, wherein the abutting end of the abutting elastic member abuts against the first inclined top surface, and the length of the abutting end is less than or equal to the length of the first inclined top surface.

6. The valve body member according to claim 4, characterized in that, The guide piece further includes a covering plate portion disposed between its first end and second end. The covering plate portion includes a covering top plate and a covering bottom plate, wherein the valve body member further includes a reset elastic member, with one end fixedly connected to the partition plate and the other end for abutting against the covering top plate of the guide piece when the guide piece is in the open state.

7. The valve body member according to claim 6, characterized in that, The reset elastic member is inclined and slopes downward from the partition plate towards the guide piece.

8. The valve body member according to claim 6, characterized in that, The partition plate is provided with a reserved passage, and the reserved passage is disposed above the reset elastic member.

9. A heat exchanger, characterized in that, Comprising the valve body member according to any one of claims 1 to 8.

10. An air conditioner, characterized in that, Comprising the heat exchanger according to claim 9.

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