Heat exchanger and air conditioner

Abstract

The utility model relates to the technical field of heat exchangers and discloses a heat exchanger which comprises a first collecting pipe, a second collecting pipe and a third collecting pipe. The first pipe section is communicated with the second pipe section through a first conduction part, and the conduction direction of the first conduction part is limited from the second pipe section to the first pipe section; the first end of the first pipe section is arranged upwards and provided with a first communicating opening, and the first communicating opening communicates with the first heat exchange pipe set and the second heat exchange pipe set at the same time. Moreover, the part between the first communicating port and the conducting component is called a first liquid storage section, the length of the first liquid storage section is h1, and h1 is larger than or equal to 10 mm and smaller than or equal to 310 mm. The utility model further discloses the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, for example, to a heat exchanger and an air conditioner. Background Art

[0002] The heat exchanger plays a vital role in air conditioners. It's a key component in their refrigerant circulation system, directly impacting their performance and efficiency. Heat exchangers are typically equipped with a manifold, which serves to aggregate or distribute flow between the various heat exchange branches.

[0003] Related technology discloses a heat exchanger, including a collecting pipe, wherein a connecting port is provided at the lower end of the collecting pipe. After the refrigerant flows into the collecting pipe, it can flow out from the connecting port at the lower end and then flow into the subsequent heat exchange branch for heat exchange.

[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0005] The header can only be used to collect or distribute flow 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 technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

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

[0008] The embodiments of the present disclosure provide a heat exchanger and an air conditioner, which solve the problem that the header cannot store liquid, resulting in poor heat exchanger performance.

[0009] In some embodiments, the heat exchanger comprises:

[0010] A first header comprises a first pipe segment and a second pipe segment; the first pipe segment is connected to the second pipe segment via a first conducting component, and the conducting direction of the first conducting component is limited to flow from the second pipe segment to the first pipe segment; wherein the first end of the first pipe segment is disposed upward and is provided with a first communicating port, the first communicating port being connected to both the first heat exchange tube group and the second heat exchange tube group;

[0011] Furthermore, the portion between the first communication port and the conducting component is referred to as a first liquid storage section. The length of the first liquid storage section is h1, and 10 mm ≤ h1 ≤ 310 mm.

[0012] Optionally, the value range of h1 is 15 mm ≤ h1 ≤ 296 mm.

[0013] Optionally, the heat exchanger further comprises:

[0014] The second header includes a third pipe segment and a fourth pipe segment; the third pipe segment is connected to the fourth pipe segment via a second conductive component, and the conductive direction of the second conductive component is limited to flow from the fourth pipe segment to the third pipe segment;

[0015] Furthermore, the third pipe section is connected to the first heat exchange tube group, and a second communication port is provided on the side wall of the fourth pipe section, and the second communication port is connected to the second heat exchange tube group.

[0016] Optionally, the first end of the fourth pipe segment is downwardly disposed and blocked, and a third communication port is further provided on its side wall; the third communication port is located below the second communication port, and the portion between the third communication port and the first end of the fourth pipe segment is referred to as the second liquid storage segment;

[0017] Furthermore, the third communication port is connected to the second pipe section through the third heat exchange tube group.

[0018] Optionally, the length of the second liquid storage section is h2, and 5mm≤h2≤200mm.

[0019] Optionally, the value range of h2 is 5mm≤h2≤50mm.

[0020] Optionally, the diameter of the first liquid storage section is d1, and the diameter of the second liquid storage section is d2;

[0021] And, 0.3≤d1 / d2≤1.

[0022] Optionally, the value of d1 / d2 is 0.42≤d1 / d2≤1.

[0023] Optionally, an angle formed by a center line of the first liquid storage section and a center line of the second liquid storage section is α, and 0°≤α≤45°.

[0024] In some embodiments, the air conditioner includes the heat exchanger.

[0025] In some embodiments, the air conditioner includes the heat exchanger.

[0026] The heat exchanger and air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0027] After heat exchange, the refrigerant in the first heat exchange tube group flows from the first connecting port to the first tube segment. Under the unidirectional conduction of the first conductive component, the refrigerant flows from the first connecting port to the second heat exchange tube group for further heat exchange. At this point, the first liquid storage segment serves to store some liquid refrigerant, thereby reducing the amount of liquid refrigerant in the subsequent heat exchange flow path. The length of the first liquid storage segment is limited to 10 mm to 310 mm, achieving both effective liquid storage and enhanced heat exchange.

[0028] 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

[0029] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0030] Figure 1 is a schematic structural diagram of a heat exchanger provided in an embodiment of the present disclosure;

[0031] Figure 2 Schematic diagram of an arrangement angle of the first liquid storage section and the second liquid storage section provided in an embodiment of the present disclosure;

[0032] Figure 3 is a schematic diagram of another arrangement angle of the first liquid storage section and the second liquid storage section provided in an embodiment of the present disclosure;

[0033] Figure 4 is a refrigerant flow diagram of a heat exchanger used as an evaporator according to an embodiment of the present disclosure;

[0034] Figure 5 is a refrigerant flow diagram of a heat exchanger used as a condenser according to an embodiment of the present disclosure;

[0035] Figure 6 is a refrigerant flow diagram of a heat exchanger used as an evaporator according to an embodiment of the present disclosure;

[0036] Figure 7 This is a refrigerant flow diagram of the heat exchanger provided in the embodiment of the present disclosure as a condenser.

[0037] Reference numerals:

[0038] 100, first header; 110, first pipe section; 111, first communication port; 112, first liquid storage section; 120, second pipe section; 130, first conductive component;

[0039] 200, second header; 210, third pipe section; 220, fourth pipe section; 221, second communication port; 222, second liquid storage section; 223, third communication port; 230, second conductive component;

[0040] 300, heat exchanger; 310, first heat exchange tube group; 311, first branch; 312, second branch; 320, second heat exchange tube group; 330, third heat exchange tube group. DETAILED DESCRIPTION

[0041] 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 is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full 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, to simplify the drawings, well-known structures and devices can be simplified for display.

[0042] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that such terms are interchangeable where appropriate to describe the embodiments of the present disclosure. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. 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.

[0044] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0045] Unless otherwise stated, the term "plurality" means two or more.

[0046] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0047] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0049] Combine Figure 1-7 As shown, an embodiment of the present disclosure provides an air conditioner including a heat exchanger 300. Heat exchanger 300 plays a crucial role in the air conditioner. It is a key component in the air conditioner's refrigerant circulation system and has a direct impact on the air conditioner's performance and efficiency. The air conditioner's refrigerant circulation system primarily consists of four basic components: a compressor, a condenser, a throttling device, and an evaporator, forming a closed circulation loop.

[0050] The compressor is the heart of the refrigerant circulation system. Its primary task is to draw in the low-temperature, low-pressure refrigerant gas from the evaporator and compress it into a high-temperature, high-pressure gas. After entering the condenser, the high-temperature, high-pressure refrigerant gas releases heat to the outside environment through heat exchange with the outside air or cooling water, while simultaneously cooling itself and forming a high-pressure liquid. As the high-pressure liquid passes through the throttling device, it partially evaporates into a gas, absorbing the surrounding heat, further reducing the refrigerant's temperature and pressure. The low-pressure refrigerant liquid then enters the evaporator, exchanging heat with the heated indoor air. The refrigerant absorbs the heat from the heated air, gradually transforming from liquid to gas, simultaneously lowering the temperature of the evaporator and achieving the desired indoor cooling effect.

[0051] In this way, the refrigerant continuously circulates to form a complete refrigeration cycle: the compressor compresses the refrigerant into a high-temperature, high-pressure gas, the condenser cools it into a high-pressure liquid, the throttling device throttles and reduces the refrigerant pressure, and the evaporator absorbs the indoor heat, causing the refrigerant to evaporate into gas, which then re-enters the compressor, completing the refrigeration cycle. During heating, the refrigerant flows in the opposite direction. This continuous circulation of the refrigerant allows the air conditioner to effectively regulate the indoor temperature and provide a comfortable indoor environment.

[0052] Alternatively, as Figure 1As shown, the heat exchanger 300 includes a first header 100. The first header 100 includes a first pipe segment 110 and a second pipe segment 120. The first pipe segment 110 is connected to the second pipe segment 120 via a first conductive component 130, and the conductive direction of the first conductive component 130 is limited to flow from the second pipe segment 120 to the first pipe segment 110. The first end of the first pipe segment 110 is positioned upward and has a first connecting port 111. The first connecting port 111 is connected to both the first heat exchange tube group 310 and the second heat exchange tube group 320. The portion between the first connecting port 111 and the conductive component is referred to as a first liquid storage section 112. The length of the first liquid storage section 112 is h1, and 10 mm ≤ h1 ≤ 310 mm.

[0053] In this embodiment, after heat exchange, the refrigerant in the first heat exchange tube group 310 can flow from the first connecting port 111 to the first tube segment 110. Under the unidirectional conduction of the first conductive component 130, the refrigerant flows from the first connecting port 111 to the second heat exchange tube group 320 for further heat exchange. At this point, the first liquid storage segment 112 can store some liquid refrigerant, thereby reducing the amount of liquid refrigerant in the subsequent heat exchange flow path. Furthermore, the length of the first liquid storage segment 112 is limited to 10 mm to 310 mm, which can achieve both a good liquid storage effect and improved heat exchange efficiency.

[0054] Illustratively, the length h1 of the first liquid storage section 112 can be selected to be 10 mm, 13 mm, 27 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 or 310 mm.

[0055] Here, regarding the position of the first communication port, if the first end of the first pipe section 110 forms a redundant pipe section upward, the first communication port is located on the side wall of the first end of the first pipe section 110, forming a T shape (such as Figure 1 If the redundant pipe segment is not present, the first end of the first pipe segment 110 directly serves as the first communication port 111, forming an L-shape. The length h1 is measured using the center of the first communication port 111 as the starting point and the conductive portion of the first conductive component 130 as the end point.

[0056] Optionally, the value range of h1 is 15 mm ≤ h1 ≤ 296 mm.

[0057] Illustratively, the length h1 of the first liquid storage section 112 can be selected to be 15 mm, 25 mm, 30 mm, 40 mm, 55 mm, 62 mm, 70 mm, 80 mm, 90 mm, 110 mm, 130 mm, 140 mm, 160 mm, 180 mm, 210 mm, 240 mm, 260 mm, 270 mm, 290 mm or 296 mm.

[0058] Alternatively, as Figure 1 As shown, the heat exchanger 300 further includes a second header 200. The second header 200 includes a third pipe segment 210 and a fourth pipe segment 220. The third pipe segment 210 is connected to the fourth pipe segment 220 via a second conductive component 230. The conductive direction of the second conductive component 230 is limited to flow from the fourth pipe segment 220 to the third pipe segment 210. Furthermore, the third pipe segment 210 is connected to the first heat exchange tube group 310. The side wall of the fourth pipe segment 220 is provided with a second connecting port 221, which is connected to the second heat exchange tube group 320.

[0059] In this embodiment, when the refrigerant enters through the third tube segment 210, the refrigerant can only flow to the first heat exchange tube group 310 due to the unidirectional conduction of the second conducting member 230. After heat exchange within the first heat exchange tube group 310, the refrigerant can flow through the first connecting port 111 to the first tube segment 110. Because the first conducting member 130 is unidirectional, the refrigerant can only flow through the first connecting port 111 to the second heat exchange tube group 320 for further heat exchange. Furthermore, the refrigerant, after heat exchange, flows to the fourth tube segment 220.

[0060] Alternatively, as Figure 1 As shown, the first end of the fourth pipe segment 220 is set downward and blocked, and a third connecting port 223 is also provided on its side wall; the third connecting port 223 is located below the second connecting port 221, and the portion between the third connecting port 223 and the first end of the fourth pipe segment 220 is called the second liquid storage segment 222; and the third connecting port 223 is connected to the second pipe segment 120 through the third heat exchange tube group 330.

[0061] In this embodiment, after the refrigerant flows from the second heat exchange tube group 320 into the fourth tube segment 220, it flows through the third connecting port 223 to the third heat exchange tube group 330 for further heat exchange. At this point, the second liquid storage segment 222 serves to store some of the liquid refrigerant, thereby reducing the amount of liquid refrigerant in the subsequent heat exchange flow path. The refrigerant, after heat exchange, then flows to the second tube segment 120.

[0062] Optionally, the length of the second liquid storage section 222 is h2, and 5mm≤h2≤200mm. In this way, by limiting the length of the second liquid storage section 222, a better liquid storage effect can be achieved while improving the heat exchange effect.

[0063] Exemplarily, the length h2 of the second liquid storage section 222 can be selected from 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 50mm, 60mm, 80mm, 100mm, 120mm, 140mm, 160mm, 180mm or 200mm.

[0064] Optionally, the value range of h2 is 5mm≤h2≤50mm.

[0065] Illustratively, the length h2 of the second liquid storage section 222 can be selected from 5 mm, 6 mm, 12 mm, 16 mm, 22 mm, 27 mm, 32 mm, 34 mm, 38 mm, 43 mm, 46 mm, 48 mm or 50 mm.

[0066] Optionally, the diameter of the first liquid storage section 112 is d1, the diameter of the second liquid storage section 222 is d2; and 0.3≤d1 / d2≤1.

[0067] In this embodiment, by reasonably designing the pipe diameter ratio of the first liquid storage section 112 and the second liquid storage section 222, it is beneficial to balance the pressure between the two liquid storage sections, reduce the impact of pressure fluctuations during refrigerant circulation, and thus enhance the stability of the refrigerant system.

[0068] Exemplarily, the value of d1 / d2 can be selected as 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 or 1.

[0069] Optionally, the value of d1 / d2 is 0.42≤d1 / d2≤1.

[0070] Exemplarily, the value of d1 / d2 can be selected as 0.42, 0.45, 0.55, 0.65, 0.75, 0.85, 0.95 or 1.

[0071] Optionally, the angle formed by the center line of the first liquid storage section 112 and the center line of the second liquid storage section 222 is α, and 0°≤α≤45°.

[0072] For example, the angle α can be 0°, 2°, 4°, 6°, 8°, 10°, 12°, 15°, 18°, 20°, 23°, 25°, 28°, 30°, 33°, 35°, 38°, 40°, 42°, or 45°. Here, when α is 0°, it means that the center lines of the two liquid storage sections are parallel.

[0073] Optionally, the first liquid storage segment 112 is coaxial with the rest of the first tube segment 110, and the second liquid storage segment 222 is coaxial with the rest of the fourth tube segment 220. In addition, one of the liquid storage segments or both liquid storage segments are tilted to form an angle α greater than zero.

[0074] For example, Figure 2 As shown, the first liquid storage section 112 is arranged vertically, the second liquid storage section 222 is arranged obliquely, and the angle at the intersection of the center lines of the upper ends of the two liquid storage sections is taken as α.

[0075] Another example is, Figure 3 As shown, the first liquid storage section 112 is arranged obliquely, the second liquid storage section 222 is arranged vertically, and the angle at the intersection of the center lines of the lower ends of the two liquid storage sections is taken as α.

[0076] Alternatively, as Figure 4 As shown, when the heat exchanger 300 functions as an evaporator, the refrigerant flows in through the second pipe segment 120. At this point, both the first conductive component 130 and the second conductive component 230 are in a conductive state. The refrigerant in the second pipe segment 120 flows in two directions: one through the third heat exchange tube group 330 to the fourth pipe segment 220, and the other through the first conductive component 130 to the first pipe segment 110. The refrigerant in the first pipe segment 110 then flows in two directions: one through the second heat exchange tube group 320 to the fourth pipe segment 220, and the other through the first heat exchange tube group 310 to the third pipe segment 210. Next, the refrigerant in the fourth pipe segment 220 flows through the second conductive component 230 to the third pipe segment 210. Finally, the refrigerant exits the heat exchanger 300 through the third pipe segment 210.

[0077] Alternatively, as Figure 5 As shown, when the heat exchanger 300 is used as a condenser, the refrigerant flows in from the third pipe segment 210. The first conductive component 130 and the second conductive component 230 are both in a blocked state. The refrigerant in the third pipe segment 210 flows to the first pipe segment 110 through the first heat exchange tube group 310. Then, the refrigerant in the first pipe segment 110 flows to the fourth pipe segment 220 through the second heat exchange tube group 320. Then, the refrigerant in the fourth pipe segment 220 flows to the second pipe segment 120 through the third heat exchange tube group 330. Finally, the refrigerant flows out of the heat exchanger 300 from the second pipe segment 120. In the above circulation process, the first liquid storage segment 112 and the second liquid storage segment 222 both play the role of storing part of the refrigerant, reducing the proportion of liquid refrigerant in the second heat exchange tube group 320 and the third heat exchange tube group 330, thereby improving the heat exchange effect.

[0078] Here, when the heat exchanger 300 serves as an evaporator and a condenser respectively, the refrigerant flows through different flow paths, thereby realizing a variable diversion function.

[0079] Optionally, the first heat exchange tube group 310 , the second heat exchange tube group 320 and the third heat exchange tube group 330 respectively include one or more heat exchange branches.

[0080] For example, the first heat exchange tube group 310 includes a first branch 311 and a second branch 312. Figure 6As shown, when the heat exchanger 300 functions as an evaporator, refrigerant flows into the second pipe segment 120. At this point, both the first conducting component 130 and the second conducting component 230 are in a conductive state. The refrigerant in the second pipe segment 120 flows in two directions: through the third heat exchange tube group 330 to the fourth pipe segment 220, and through the first conducting component 130 to the first pipe segment 110. The refrigerant in the first pipe segment 110 then flows in three directions: through the second heat exchange tube group 320 to the fourth pipe segment 220, through the first branch 311 to the third pipe segment 210, and through the second branch 312 to the third pipe segment 210. Next, the refrigerant in the fourth pipe segment 220 flows through the second conducting component 230 to the third pipe segment 210. Finally, the refrigerant exits the heat exchanger 300 through the third pipe segment 210.

[0081] like Figure 7 As shown, when the heat exchanger 300 functions as a condenser, the refrigerant flows in through the third pipe segment 210. Both the first conductive component 130 and the second conductive component 230 are in a blocked state. The refrigerant in the third pipe segment 210 flows in two directions: one is to the first pipe segment 110 through the first branch 311, and the other is to the first pipe segment 110 through the second branch 312. The refrigerant in the first pipe segment 110 then flows through the second heat exchange tube group 320 to the fourth pipe segment 220. Next, the refrigerant in the fourth pipe segment 220 flows through the third heat exchange tube group 330 to the second pipe segment 120. Finally, the refrigerant exits the heat exchanger 300 through the second pipe segment 120.

[0082] Optionally, the heat exchanger 300 functions as an outdoor heat exchanger. When the air conditioner operates in heating mode, the outdoor heat exchanger functions as an evaporator. Refrigerant flows into the outdoor heat exchanger's second pipe segment 120, and both the first conductive component 130 and the second conductive component 230 are in a conductive state. The refrigerant in the second pipe segment 120 flows in two directions: through the third heat exchange tube group 330 to the fourth pipe segment 220, and through the first conductive component 130 to the first pipe segment 110. The refrigerant in the first pipe segment 110 then flows in two directions: through the second heat exchange tube group 320 to the fourth pipe segment 220, and through the first heat exchange tube group 310 to the third pipe segment 210. The refrigerant in the fourth pipe segment 220 then flows through the second conductive component 230 to the third pipe segment 210. Finally, the refrigerant exits the heat exchanger 300 through the third pipe segment 210. In this way, during the above circulation process, the first heat exchange tube group 310, the second heat exchange tube group 320 and the third heat exchange tube group 330 form a parallel communication relationship.

[0083] Optionally, the heat exchanger 300 serves as an outdoor heat exchanger. When the air conditioner operates in cooling mode, the outdoor heat exchanger serves as a condenser. Refrigerant flows into the third pipe segment 210, and both the first conductive component 130 and the second conductive component 230 are in a blocked state. The refrigerant in the third pipe segment 210 flows to the first pipe segment 110 through the first heat exchange tube group 310. The refrigerant in the first pipe segment 110 then flows to the fourth pipe segment 220 through the second heat exchange tube group 320. The refrigerant in the fourth pipe segment 220 then flows to the second pipe segment 120 through the third heat exchange tube group 330. Finally, the refrigerant exits the heat exchanger 300 through the second pipe segment 120. During this circulation process, the first liquid storage segment 112 and the second liquid storage segment 222 both serve to store a portion of the refrigerant, reducing the proportion of liquid refrigerant in the second and third heat exchange tube groups 320 and 330, thereby improving the heat exchange efficiency. Furthermore, during the above circulation process, the first heat exchange tube group 310 , the second heat exchange tube group 320 and the third heat exchange tube group 330 form a serial communication relationship.

[0084] In summary, when the air conditioner is in cooling mode and the heat exchanger 300 is used as a condenser, multiple heat exchange branches are connected in series. This can accelerate the circulation and increase the heat transfer coefficient, thereby improving the high-temperature cooling capacity. Moreover, under the action of the first liquid storage section 112 and the second liquid storage section 222, the heat exchange effect of the heat exchanger 300 is improved. When the air conditioner is in heating mode and the heat exchanger 300 is used as an evaporator, multiple heat exchange branches are connected in parallel. This can reduce the pressure drop and increase the system pressure, thereby increasing the low-temperature heating capacity. In this way, under the variable diversion function of the heat exchanger 300, the energy efficiency of the air conditioner is effectively improved.

[0085] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heat exchanger, characterized in that: include: The first header (100) comprises a first pipe section (110) and a second pipe section (120); the first pipe section (110) is connected to the second pipe section (120) via a first conducting component (130), and the conducting direction of the first conducting component (130) is limited to flow from the second pipe section (120) to the first pipe section (110); wherein the first end of the first pipe section (110) is arranged upward and is provided with a first communicating port (111), and the first communicating port (111) is simultaneously connected to the first heat exchange tube group (310) and the second heat exchange tube group (320); Furthermore, the portion between the first communication port (111) and the conductive component is called the first liquid storage section (112), and the length of the first liquid storage section (112) is h1, and 10 mm ≤ h1 ≤ 310 mm.

2. The heat exchanger according to claim 1, characterized in that The value range of h1 is 15mm≤h1≤296mm.

3. The heat exchanger according to claim 1 or 2, characterized in that: Also includes: A second header (200) includes a third pipe section (210) and a fourth pipe section (220); The third pipe section (210) is connected to the fourth pipe section (220) via a second conducting component (230), and the conducting direction of the second conducting component (230) is limited to flowing from the fourth pipe section (220) to the third pipe section (210); Furthermore, the third pipe section (210) is connected to the first heat exchange pipe group (310), and a second communication port (221) is provided on the side wall of the fourth pipe section (220), and the second communication port (221) is connected to the second heat exchange pipe group (320).

4. The heat exchanger according to claim 3, characterized in that The first end of the fourth pipe section (220) is downwardly disposed and blocked, and a third communication port (223) is further provided on its side wall; the third communication port (223) is located below the second communication port (221), and the portion between the third communication port (223) and the first end of the fourth pipe section (220) is referred to as the second liquid storage section (222); Furthermore, the third communication port (223) is connected to the second pipe section (120) through the third heat exchange tube group (330).

5. The heat exchanger according to claim 4, characterized in that The length of the second liquid storage section (222) is h2, and 5mm≤h2≤200mm.

6. The heat exchanger according to claim 5, characterized in that The value range of h2 is 5mm≤h2≤50mm.

7. The heat exchanger according to claim 4, characterized in that The diameter of the first liquid storage section (112) is d1, and the diameter of the second liquid storage section (222) is d2; And, 0.3≤d1 / d2≤1.

8. The heat exchanger according to claim 7, characterized in that The value of d1 / d2 is 0.42≤d1 / d2≤1.

9. The heat exchanger according to claim 4, characterized in that The included angle formed by the center line of the first liquid storage section (112) and the center line of the second liquid storage section (222) is α, and 0°≤α≤45°.

10. An air conditioner, characterized in that: Comprising the heat exchanger according to any one of claims 1 to 9.

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