Header component, heat exchanger and air conditioner

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a header component which comprises a first header pipe and a second header pipe. The first end of the first pipe section faces downwards and is blocked, and a first communication port and a second communication port are sequentially formed in the side wall of the first pipe section from bottom to top; wherein the first communicating port is used for communicating with the first heat exchange tube set, and the second communicating port is used for communicating with the second heat exchange tube set; moreover, the part between the first communication port and the first end of the first pipe section is called a liquid storage section, the length of the liquid storage section is H, and H is larger than or equal to 5mm and smaller than or equal to 350mm. The utility model further discloses the heat exchanger and the air conditioner.

Description

Technical Field

[0001] This application relates to the technical field of heat exchangers, for example, a header member, a heat exchanger, and an air conditioner are involved. Background Art

[0002] The heat exchanger plays a crucial role in the air conditioner. It is a key component in the refrigerant circulation system of the air conditioner and has a direct impact on the performance and efficiency of the air conditioner. The heat exchanger of the air conditioner is usually provided with a header member, and the header member is used to collect or distribute the heat exchange branches of the heat exchanger.

[0003] The related art discloses a heat exchanger, including a header pipe. A communication port is provided at the lower end of the header pipe. After the refrigerant flows into the header pipe, it can flow out from the communication port at the lower end and then flow into the subsequent heat exchange branches for heat exchange.

[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 header pipe can only be used for collecting or distributing, and cannot achieve the liquid storage function, resulting in poor performance of the heat exchanger.

[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 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 Utility Model

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The 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] The embodiments of the present disclosure provide a header member, a heat exchanger, and an air conditioner, which solve the problem that the header pipe cannot store liquid, resulting in poor performance of the heat exchanger.

[0009] In some embodiments, the header member includes:

[0010] A first header pipe, including a first pipe section; the first end of the first pipe section is arranged downward and blocked, and a first communication port and a second communication port are sequentially provided on its side wall from bottom to top; wherein, the first communication port is used to communicate with the first heat exchange tube group, and the second communication port is used to communicate with the second heat exchange tube group;

[0011] Moreover, the part between the first communication port and the first end of the first pipe section is called the liquid storage section, the length of the liquid storage section is H, and 5mm ≤ H ≤ 350mm.

[0012] Optionally, the axis of the first pipe section forms an angle α with the axis of the second pipe section, and 0° ≤ α ≤ 40°.

[0013] Optionally, the inner diameter of the liquid storage section is d, and 6 mm ≤ d ≤ 14 mm.

[0014] Optionally, the value range of d is: 8.1 mm ≤ d ≤ 11.9 mm.

[0015] Optionally, the first manifold pipe further includes:

[0016] A second pipe section, whose first end is for the refrigerant to enter and exit, and whose second end is connected to the second end of the first pipe section through a first conduction component; the conduction direction of the first conduction component is defined as flowing from the first pipe section to the second pipe section;

[0017] And, a third communication port is provided on the side wall of the second pipe section, the third communication port is used to communicate with the third heat exchange tube group, and the third heat exchange tube group is communicated with the second heat exchange tube group.

[0018] Optionally, the first pipe section is provided with a second communication port, and the second pipe section is provided with a third communication port;

[0019] And, the value range of H is: 15 mm ≤ H ≤ 327 mm.

[0020] Optionally, the first pipe section is provided with a second communication port, and the second pipe section is provided with two third communication ports; or, the first pipe section is provided with two second communication ports, and the second pipe section is provided with a third communication port;

[0021] And, the value range of H is: 15 mm ≤ H ≤ 306 mm.

[0022] In some embodiments, the heat exchanger includes the header member.

[0023] In some embodiments, the heat exchanger includes:

[0024] The header member as described above;

[0025] A first heat exchange tube group, a second heat exchange tube group, and a third heat exchange tube group;

[0026] A second manifold pipe, including a third pipe section and a fourth pipe section; the first end of the third pipe section is for the refrigerant to enter, and its second end is connected to the fourth pipe section through a second conduction component; the conduction direction of the second conduction component is defined as flowing from the third pipe section to the fourth pipe section; the third pipe section is provided with a fourth communication port, and the fourth pipe section is provided with a liquid separation part, and the liquid separation part has a first liquid separation port and a second liquid separation port;

[0027] Moreover, the first end of the first heat exchange tube group is connected to the first communication port, and its second end is connected to the fourth communication port; the first end of the second heat exchange tube group is connected to the second communication port, and its second end is connected to the first liquid separation port; the first end of the third heat exchange tube group is connected to the third communication port, and its second end is connected to the second liquid separation port.

[0028] In some embodiments, the air conditioner includes the heat exchanger.

[0029] The header member, heat exchanger, and air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0030] After the refrigerant in the second heat exchange tube group is heat-exchanged, it can flow into the first pipe section from the second communication port, and then flow to the first heat exchange tube group from the first communication port for continuous heat exchange. Since the first end of the first header is downward, and the first communication port is below the second communication port, the part between the first communication port and the first end of the first pipe section forms a liquid storage section. When the refrigerant flows in the above direction, part of the liquid refrigerant can be stored under the action of the liquid storage section, thereby reducing the liquid refrigerant content in the subsequent heat exchange flow path, and thus improving the heat exchange effect.

[0031] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation 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 among them:

[0033] Figure 1 is a schematic structural diagram of a heat exchanger in the related art;

[0034] Figure 2 is a schematic structural diagram of a first header in the related art;

[0035] Figure 3 is a schematic diagram of the included angle between a first pipe section and a second pipe section in the related art;

[0036] Figure 4 is a refrigerant flow direction diagram of the heat exchanger provided by the embodiments of the present disclosure as an evaporator;

[0037] Figure 5 is a refrigerant flow direction diagram of the heat exchanger provided by the embodiments of the present disclosure as a condenser;

[0038] Figure 6 is a schematic structural diagram of two third communication ports provided by the embodiments of the present disclosure;

[0039] Figure 7It is the refrigerant flow diagram of the heat exchanger provided by the embodiments of the present disclosure when used as an evaporator;

[0040] Figure 8 It is the refrigerant flow diagram of the heat exchanger provided by the embodiments of the present disclosure when used as an evaporator.

[0041] Reference numerals:

[0042] 100, the first header; 110, the first pipe section; 111, the first communication port; 112, the second communication port; 120, the second pipe section; 121, the third communication port; 130, the liquid storage section; 140, the first conduction member;

[0043] 200, the second header; 210, the third pipe section; 211, the fourth communication port; 220, the fourth pipe section; 221, the liquid separation part; 230, the second conduction member;

[0044] 300, the heat exchanger; 310, the first heat exchange tube group; 311, the first branch; 320, the second heat exchange tube group; 321, the second branch; 330, the third heat exchange tube group; 331, the third branch; 332, the fourth branch. Detailed implementation manners

[0045] 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 for reference and illustration only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0046] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need 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 "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0047] In the embodiments of the present disclosure, the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientation or positional relationships shown in the 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 devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being used to represent orientation or positional relationships, 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.

[0048] 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 is 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.

[0049] Unless otherwise specified, the term "plurality" means two or more.

[0050] 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.

[0051] The term "and / or" is an associative relationship describing 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.

[0052] 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.

[0053] Combined Figure 1-8 As shown, the embodiments of the present disclosure provide an air conditioner, including a heat exchanger 300. The heat exchanger plays a crucial role in the air conditioner. It is a key component in the refrigerant circulation system of the air conditioner and has a direct impact on the performance and efficiency of the air conditioner. The refrigerant circulation system of the air conditioner mainly consists of four basic components: a compressor, a condenser, a throttling device, and an evaporator, forming a closed circulation loop.

[0054] Among them, the compressor is the heart of the refrigerant circulation system. Its main task is to suck in the low-temperature and low-pressure refrigerant gas coming out of the evaporator, and after compression, it becomes a high-temperature and high-pressure gas. After the high-temperature and high-pressure refrigerant gas enters the condenser, through heat exchange with the outside air or cooling water, the heat is released to the external environment, and at the same time, it cools itself and forms a high-pressure liquid. When the high-pressure liquid passes through the throttling device, through throttling and pressure reduction, part of the liquid will evaporate into gas, and at the same time absorb the surrounding heat, further reducing the temperature and pressure of the refrigerant. After the low-pressure refrigerant liquid enters the evaporator, it exchanges heat with the indoor hot air. The refrigerant absorbs the heat of the hot air and gradually changes from liquid to gas, while reducing the temperature of the evaporator, so as to achieve the purpose of cooling the indoor environment.

[0055] In this way, the refrigerant continuously circulates to form a complete refrigeration cycle loop: the compressor compresses the refrigerant into a high-temperature and high-pressure gas, the condenser cools it into a high-pressure liquid, the throttling device throttles and reduces the pressure of the refrigerant, and the evaporator absorbs the indoor heat to evaporate the refrigerant into gas and then enters the compressor again to complete a refrigeration cycle. When heating, the flow direction of the refrigerant is opposite. In this way, through the continuous circulation of the refrigerant, the air conditioner can effectively adjust the indoor temperature and provide a comfortable indoor environment for people.

[0056] In some embodiments, the heat exchanger 300 includes a header member.

[0057] In some embodiments, such as Figure 1 and Figure 2 shown, the header member includes a first header 100, and the first header 100 includes a first pipe section 110; the first end of the first pipe section 110 is arranged downward and blocked, and a first communication port 111 and a second communication port 112 are sequentially arranged on its side wall from bottom to top; wherein, the first communication port 111 is used to communicate with the first heat exchange tube group 310, and the second communication port 112 is used to communicate with the second heat exchange tube group 320; and, the part between the first communication port 111 and the first end of the first pipe section 110 is called a liquid storage section 130, the length of the liquid storage section 130 is H, and 5mm ≤ H ≤ 350mm.

[0058] In this embodiment, after the refrigerant of the second heat exchange tube group 320 is heat-exchanged, it can flow into the first pipe section 110 from the second communication port 112, and then flow to the first heat exchange tube group 310 from the first communication port 111 for continuous heat exchange. Since the first end of the first header 100 is arranged downward, and the first communication port 111 is located below the second communication port 112, the part between the first communication port 111 and the first end of the first pipe section 110 forms a liquid storage section 130. When the refrigerant flows in the above direction, under the action of the liquid storage section 130, part of the liquid refrigerant can be stored, thereby reducing the liquid refrigerant content in the subsequent heat exchange flow path, and thus improving the heat exchange effect.

[0059] Exemplarily, the length H of the liquid storage section 130 can be selected as 5 mm, 10 mm, 15 mm, 25 mm, 35 mm, 45 mm, 50 mm, 60 mm, 65 mm, 75 mm, 85 mm, 95 mm, 100 mm, 120 mm, 150 mm, 180 mm, 200 mm, 220 mm, 250 mm, 280 mm, 300 mm, 320 mm, 350 mm.

[0060] Optionally, as Figure 3 shown, the axis of the first pipe section 110 forms an angle α with the axis of the second pipe section 120, and 0° ≤ α ≤ 40°.

[0061] In this embodiment, when the value of the angle α is 0°, it means that the axis of the first pipe section 110 coincides with the axis of the second pipe section 120. When the value of the angle α is non - zero, it means that the axis of the first pipe section 110 intersects the axis of the second pipe section 120, and the first pipe section 110 is inclined downward. Here, the non - zero angle α causes a certain inclination angle between the first pipe section 110 and the second pipe section 120. Since the density of the liquid refrigerant is relatively large, it can flow downward along the inclined surface under the action of gravity and accumulate, thereby forming an effective liquid refrigerant storage in the liquid storage section 130.

[0062] Exemplarily, the angle α can be selected as 0°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 10°, 12°, 15°, 18°, 20°, 23°, 25°, 28°, 30°, 33°, 35°, 38°, 40°.

[0063] Optionally, as Figure 3 shown, the inner diameter of the liquid storage section 130 is d, and 6 mm ≤ d ≤ 14 mm.

[0064] In this embodiment, by reasonably setting the inner diameter of the liquid storage section 130, it is beneficial to ensure the refrigerant storage capacity of the liquid storage section 130 and enhance the stability of the system. The inner diameter of the liquid storage section 130 is the same as or different from the inner diameters of other parts of the first pipe section 110. Here, if the inner diameter of the liquid storage section 130 is too small, the liquid storage capacity is small, and the improvement of the heat exchange energy efficiency is not obvious. If the inner diameter of the liquid storage section 130 is too large, there is a significant difference from the inner diameters of other parts of the first pipe section 110, and the refrigerant is likely to form unstable turbulence in the liquid storage section 130, affecting the flow stability of the refrigerant.

[0065] Exemplarily, the inner diameter d can be selected as 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, 10.5 mm, 11 mm, 11.5 mm, 12 mm, 12.5 mm, 13 mm, 13.5 mm, 14 mm, 14.5 mm, 15 mm.

[0066] Optionally, the inner diameter of the liquid storage section 130 is d, and 8.1 mm ≤ d ≤ 11.9 mm.

[0067] Exemplarily, the inner diameter d can be selected as 8.1 mm, 8.2 mm, 8.6 mm, 8.8 mm, 9 mm, 9.2 mm, 9.4 mm, 9.6 mm, 9.8 mm, 10.1 mm, 10.3 mm, 10.7 mm, 10.9 mm, 11.1 mm, 11.2 mm, 11.4 mm, 11.6 mm, 11.9 mm.

[0068] Optionally, the first manifold 100 further includes a second pipe section 120. The first end of the second pipe section 120 is for the refrigerant to enter and exit. Its second end is connected to the second end of the first pipe section 110 through a first conduction component 140; the conduction direction of the first conduction component 140 is defined as flowing from the first pipe section 110 to the second pipe section 120; and, a third communication port 121 is provided on the side wall of the second pipe section 120. The third communication port 121 is used to connect to the third heat exchange tube group 330, and the third heat exchange tube group 330 is connected to the second heat exchange tube group 320.

[0069] In this embodiment, under the one-way conduction action of the first conduction component 140, the refrigerant in the second pipe section 120 cannot directly flow to the first pipe section 110 through the first conduction component 140. When the refrigerant flows into the first end of the second pipe section 120, the refrigerant in the second pipe section 120 flows from the third communication port 121 to the third heat exchange tube group 330. Then, the refrigerant in the third heat exchange tube group 330 flows to the second heat exchange tube group 320 and enters the first pipe section 110 through the second communication port 112. Next, the refrigerant in the first pipe section 110 flows from the first communication port 111 to the first heat exchange tube group 310. In this way, the refrigerant exchanges heat in the third heat exchange tube group 330, the second heat exchange tube group 320, and the first heat exchange tube group 310 in sequence. When the heat exchanger 300 is used as a condenser, after the refrigerant exchanges heat in the third heat exchange tube group 330 and the second heat exchange tube group 320, the generated liquid refrigerant occupies a relatively large space in the heat exchanger 300, resulting in a decrease in the subsequent heat exchange effect. Under the action of the liquid storage section 130, the proportion of liquid refrigerant in the first heat exchange tube group 310 is reduced, thereby effectively improving the heat exchange effect of the refrigerant in the first heat exchange tube group 310.

[0070] Optionally, the first conduction component 140 includes an external one-way valve. The one-way valve is arranged outside the first manifold 100, and its conduction direction is defined as flowing from the first pipe section 110 to the second pipe section 120.

[0071] Optionally, the first conducting component 140 includes a built-in one-way conduction structure disposed inside the first header 100. When the refrigerant flows from the first pipe section 110 to the second pipe section 120, the one-way conduction structure opens, and when the refrigerant flows from the second pipe section 120 to the first pipe section 110, the one-way conduction structure closes.

[0072] Exemplarily, a flipable valve plate is provided at the connection port between the first pipe section 110 and the second pipe section 120. When the refrigerant flows from the first pipe section 110 to the second pipe section 120, the valve plate flips to a position avoiding the connection port to allow the refrigerant to flow through. When the refrigerant flows from the second pipe section 120 to the first pipe section 110, the valve plate flips to a position blocking the connection port to block the refrigerant flow.

[0073] Optionally, as Figure 2 shown, the first pipe section 110 is provided with a second communication port 112, and the second pipe section 120 is provided with a third communication port 121; and, the value range of H is: 15mm ≤ H ≤ 327mm.

[0074] In this embodiment, the first heat exchange tube group 310 includes a first branch 311, the second heat exchange tube group 320 includes a second branch 321, and the third heat exchange tube group 330 includes a third branch 331. The first branch 311 communicates with the first communication port 111, the second branch 321 communicates with the second communication port 112, and the third branch 331 communicates with the third communication port 121. That is, each heat exchange tube group includes one branch, and the header member communicates with a total of three branches. At this time, the value range of H is 15mm ≤ H ≤ 327mm. In this way, by optimizing the value range of H, it is more suitable for the case of three branches.

[0075] Exemplarily, the length H of the liquid storage section 130 can be selected as 15mm, 20mm, 30mm, 40mm, 55mm, 65mm, 70mm, 78mm, 80mm, 90mm, 105mm, 125mm, 130mm, 170mm, 210mm, 230mm, 260mm, 290mm, 310mm, 315mm, 327mm.

[0076] Optionally, as Figure 6 shown, the first pipe section 110 is provided with a second communication port 112, and the second pipe section 120 is provided with two third communication ports 121.

[0077] In this embodiment, the first heat exchange tube group 310 includes a first branch 311, the second heat exchange tube group 320 includes a second branch 321, and the third heat exchange tube group 330 includes a third branch 331 and a fourth branch 332. The first branch 311 communicates with the first communication port 111, the second branch 321 communicates with the second communication port 112, the third branch 331 communicates with one third communication port 121, and the fourth branch 332 communicates with the other third communication port 121. In this way, the header member is totally connected to four branches.

[0078] Optionally, the first pipe section 110 is provided with two second communication ports 112 (not shown in the figure), and the second pipe section 120 is provided with one third communication port 121.

[0079] In this embodiment, the first heat exchange tube group 310 includes a first branch 311, the second heat exchange tube group 320 includes a second branch 321 and a fifth branch, and the third heat exchange tube group 330 includes a third branch 331. The first branch 311 communicates with the first communication port 111, the second branch 321 communicates with one second communication port 112, the fifth heat exchange path communicates with the other second communication port 112, and the third branch 331 communicates with one third communication port 121. In this way, the header member is totally connected to four branches.

[0080] Optionally, when the header member is totally connected to four branches, the value range of H is: 15 mm ≤ H ≤ 306 mm. In this way, by optimizing the value range of H, it is more suitable for the case of four branches.

[0081] Exemplarily, the length H of the liquid storage section 130 can be selected as 15 mm, 22 mm, 33 mm, 44 mm, 57 mm, 64 mm, 72 mm, 77 mm, 85 mm, 99 mm, 102 mm, 127 mm, 133 mm, 176 mm, 215 mm, 235 mm, 265 mm, 295 mm, 300 mm, 303 mm, 306 mm.

[0082] Optionally, the heat exchanger 300 includes a first heat exchange tube group 310, a second heat exchange tube group 320, a third heat exchange tube group 330 and a second header 200. As Figure 1As shown in the figure, the second manifold 200 includes a third pipe section 210 and a fourth pipe section 220; the first end of the third pipe section 210 is for refrigerant to enter, and its second end is connected to the fourth pipe section 220 through a second conduction member 230; the conduction direction of the second conduction member 230 is defined as flowing from the third pipe section 210 to the fourth pipe section 220; the third pipe section 210 is provided with a fourth communication port 211, and the fourth pipe section 220 is provided with a liquid distribution part 221, and the liquid distribution part 221 has a first liquid distribution port and a second liquid distribution port; moreover, the first end of the first heat exchange tube group 310 is connected to the first communication port 111, and its second end is connected to the fourth communication port 211; the first end of the second heat exchange tube group 320 is connected to the second communication port 112, and its second end is connected to the first liquid distribution port; the first end of the third heat exchange tube group 330 is connected to the third communication port 121, and its second end is connected to the second liquid distribution port.

[0083] In this embodiment, the liquid distribution part 221 includes a liquid distributor. Through the layout of the heat exchange tube groups, the manifold members, and the conduction members, the variable flow splitting function of the heat exchanger 300 is realized. Here, the number of branches included in each heat exchange tube group is not specifically limited. Taking each heat exchange tube group including one branch as an example:

[0084] As Figure 4 shown in the figure, when the heat exchanger 300 is used as an evaporator, the refrigerant flows into from the first end of the third pipe section 210. At this time, both the first conduction member 140 and the second conduction member 230 are in a conduction state. The refrigerant in the third pipe section 210 has two flow directions: one is to flow to the first pipe section 110 through the first branch 311, and the other is to flow to the fourth pipe section 220 through the second conduction member 230. The refrigerant in the fourth pipe section 220 has two flow directions: one is to flow to the first pipe section 110 through the second branch 321, and the other is to flow to the second pipe section 120 through the third branch 331. The refrigerant in the first pipe section 110 flows to the second pipe section 120 through the first conduction member 140. Finally, the refrigerant in the second pipe section 120 flows out from its first end.

[0085] As Figure 5 shown in the figure, when the heat exchanger 300 is used as a condenser, the refrigerant flows into from the first end of the second pipe section 120. At this time, both the first conduction member 140 and the second conduction member 230 are in a blocked state. The refrigerant in the second pipe section 120 flows to the fourth pipe section 220 through the third branch 331, and the refrigerant in the fourth pipe section 220 flows to the first pipe section 110 through the second branch 321. The refrigerant in the first pipe section 110 flows to the third pipe section 210 through the first branch 311. Moreover, under the action of the liquid storage section 130, part of the liquid refrigerant is stored, reducing the proportion of the liquid refrigerant in the first branch 311 and improving the heat exchange effect of the refrigerant in the first branch 311.

[0086] Taking the third heat exchange tube group 330 including a third branch 331 and a fourth branch 332 as an example:

[0087] As Figure 7 shown, when the heat exchanger 300 is used as an evaporator, the refrigerant flows into the first end of the third pipe section 210. At this time, both the first conduction component 140 and the second conduction component 230 are in the conduction state. The refrigerant in the third pipe section 210 has two flow directions: one is to flow through the first branch 311 to the first pipe section 110, and the other is to flow through the second conduction component 230 to the fourth pipe section 220. The refrigerant in the fourth pipe section 220 has three flow directions: one is to flow through the second branch 321 to the first pipe section 110, the second is to flow through the third branch 331 to the second pipe section 120, and the third is to flow through the fourth branch 332 to the second pipe section 120. The refrigerant in the first pipe section 110 flows through the first conduction component 140 to the second pipe section 120. Finally, the refrigerant in the second pipe section 120 flows out from its first end.

[0088] As Figure 8 shown, when the heat exchanger 300 is used as a condenser, the refrigerant flows into the first end of the second pipe section 120. At this time, both the first conduction component 140 and the second conduction component 230 are in the blocking state. The refrigerant in the second pipe section 120 has two flow directions: one is to flow through the third branch 331 to the fourth pipe section 220, and the other is to flow through the fourth branch 332 to the fourth pipe section 220. The refrigerant in the fourth pipe section 220 flows through the second branch 321 to the first pipe section 110. The refrigerant in the first pipe section 110 flows through the first branch 311 to the third pipe section 210. And, under the action of the liquid storage section 130, part of the liquid refrigerant is stored, reducing the proportion of the liquid refrigerant in the first branch 311 and improving the heat exchange effect of the refrigerant in the first branch 311.

[0089] In summary, when the air conditioner is in the refrigeration mode and the heat exchanger 300 is used as a condenser, multiple heat exchange branches are connected in series. In this way, the circulation can be accelerated to increase the heat transfer coefficient, thereby improving the high-temperature refrigerating capacity. And, under the action of the liquid storage section 130 of the first header 100, the heat exchange effect of the heat exchanger 300 is improved. When the air conditioner is in the heating mode and the heat exchanger 300 is used as an evaporator, at this time, multiple heat exchange branches are connected in parallel. In this way, the pressure drop can be reduced and the system pressure can be increased, thereby improving the low-temperature heating capacity. In this way, under the variable flow splitting function of the heat exchanger 300, the energy efficiency of the air conditioner is effectively improved.

[0090] The above description and the drawings sufficiently illustrate 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, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in 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 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 header member, characterized in that, Comprising: The first header pipe (100) includes a first pipe section (110); the first end of the first pipe section (110) is arranged downward and blocked, and a first communication port (111) and a second communication port (112) are successively arranged on its side wall from bottom to top; wherein, the first communication port (111) is used to communicate with the first heat exchange tube group (310), and the second communication port (112) is used to communicate with the second heat exchange tube group (320); Moreover, the part between the first communication port (111) and the first end of the first pipe section (110) is called the liquid storage section (130), the length of the liquid storage section (130) is H, and 5mm ≤ H ≤ 350mm.

2. The header pipe component according to claim 1, wherein The axis of the first pipe section (110) forms an angle α with the axis of the second pipe section (120), and 0° ≤ α ≤ 40°.

3. The header pipe component according to claim 1, wherein The inner diameter of the liquid storage section (130) is d, and 6mm ≤ d ≤ 14mm.

4. The header pipe component according to claim 3, wherein The value range of d is: 8.1mm ≤ d ≤ 11.9mm.

5. The header member according to any one of claims 1 to 4, characterized in that The first header pipe (100) further includes: A second pipe section (120), its first end is used for the refrigerant to enter and exit, and its second end is connected to the second end of the first pipe section (110) through a first conduction component (140); the conduction direction of the first conduction component (140) is limited to flow from the first pipe section (110) to the second pipe section (120); Moreover, a third communication port (121) is arranged on the side wall of the second pipe section (120), the third communication port (121) is used to communicate with the third heat exchange tube group (330), and the third heat exchange tube group (330) is connected to the second heat exchange tube group (320).

6. The header pipe component according to claim 5, wherein The first pipe section (110) is provided with a second communication port (112), and the second pipe section (120) is provided with a third communication port (121); Moreover, the value range of H is: 15mm ≤ H ≤ 327mm.

7. The header pipe component according to claim 5, wherein The first pipe section (110) is provided with a second communication port (112), and the second pipe section (120) is provided with two third communication ports (121); or, the first pipe section (110) is provided with two second communication ports (112), and the second pipe section (120) is provided with a third communication port (121); Moreover, the value range of H is: 15mm ≤ H ≤ 306mm.

8. A heat exchanger, characterized in that, Comprising the header pipe component according to any one of claims 1 to 7.

9. A heat exchanger, characterized in that, Comprising: The header pipe component according to claim 5; The first heat exchange tube group (310), the second heat exchange tube group (320) and the third heat exchange tube group (330); The second manifold (200) includes a third pipe section (210) and a fourth pipe section (220); the first end of the third pipe section (210) is for refrigerant to enter, and its second end is connected to the fourth pipe section (220) through a second conducting component (230); the conducting direction of the second conducting component (230) is defined as flowing from the third pipe section (210) to the fourth pipe section (220); the third pipe section (210) is provided with a fourth communication port (211), and the fourth pipe section (220) is provided with a liquid separation part (221), and the liquid separation part (221) has a first liquid separation port and a second liquid separation port; Moreover, the first end of the first heat exchange tube group (310) is connected to the first communication port (111), and its second end is connected to the fourth communication port (211); the first end of the second heat exchange tube group (320) is connected to the second communication port (112), and its second end is connected to the first liquid separation port; the first end of the third heat exchange tube group (330) is connected to the third communication port (121), and its second end is connected to the second liquid separation port.

10. An air conditioner, characterized in that, Comprising a heat exchanger according to claim 8 or 9.

Images