Air conditioner heat exchanger and air conditioner system

Abstract

The utility model relates to the technical field of air conditioning equipment, and discloses an air conditioner heat exchanger and an air conditioning system. The throttling devices are arranged between every two adjacent heat exchange tube sets; the multiple heat exchange tube sets are sequentially arranged in the direction perpendicular to the direction in which air flows through the air conditioner heat exchanger. According to the embodiment, under the condition that the air humidity is reduced, the air temperature can be increased, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning equipment, for example, to an air conditioner heat exchanger and an air conditioning system. Background Art

[0002] An air conditioning system usually has a refrigeration mode and a heating mode. By circulating refrigerant in a loop formed by a compressor - outdoor heat exchanger - throttling component - indoor heat exchanger - compressor, the indoor temperature, humidity, etc. can be improved, enhancing user comfort. The dehumidification function of an air conditioner is usually based on the principle of water vapor condensation. When humid air passes through a low-temperature heat exchanger, the air temperature drops significantly, causing the air humidity to reach a supersaturated state, and excessive water vapor precipitates in the form of condensed water, thereby reducing the air humidity.

[0003] However, in daily life, the environment where the air conditioner is located is relatively complex. For example, the temperature is relatively low, but the humidity is relatively high. In this case, for the air conditioner to dehumidify, the humid air needs to pass through a low-temperature evaporator to condense the water vapor in the air to achieve dehumidification. However, after the air passes through the low-temperature evaporator, its temperature becomes relatively low, bringing a cooler feeling to the user, affecting comfort, and reducing the user experience.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application. Therefore, it may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments. Instead, it serves as a preface to the subsequent detailed description.

[0006] Embodiments of the present disclosure provide an air conditioner heat exchanger to be able to increase the air temperature while reducing the air humidity, improving the usage experience.

[0007] According to the first embodiment provided by the present application, an air conditioner heat exchanger is provided, including: a plurality of heat exchange tube groups; a throttling device, with a throttling device provided between adjacent two heat exchange tube groups; wherein, along the direction perpendicular to the direction in which air flows through the air conditioner heat exchanger, the plurality of heat exchange tube groups are arranged in sequence.

[0008] In some alternative embodiments, the multiple heat exchange tube groups include a first heat exchange tube group, a second heat exchange tube group, and a third heat exchange tube group. The first port of the first heat exchange tube group is used to communicate with the electronic expansion valve of the air-conditioning system. A first throttling device is provided between the second port of the first heat exchange tube group and the first port of the second heat exchange tube group. A second throttling device is provided between the second port of the second heat exchange tube group and the first port of the third heat exchange tube group. The second port of the third heat exchange tube group is used to communicate with the four-way valve of the air-conditioning system; the throttling device includes the first throttling device and the second throttling device.

[0009] In some alternative embodiments, the first heat exchange tube group includes a plurality of first heat exchange tube segments, and the plurality of first heat exchange tube segments are arranged in parallel and / or in series.

[0010] In some alternative embodiments, the second heat exchange tube group includes a plurality of second heat exchange tube segments, and the plurality of second heat exchange tube segments are arranged in parallel and / or in series.

[0011] In some alternative embodiments, the third heat exchange tube group includes a plurality of third heat exchange tube segments, and the plurality of third heat exchange tube segments are arranged in parallel and / or in series.

[0012] In some alternative embodiments, the air-conditioning heat exchanger further includes: a first check valve, the inlet end of which communicates with the second port of the second heat exchange tube group and can communicate with the first port of the third heat exchange tube group, and the outlet end of which communicates with the first port of the first heat exchange tube group; a second check valve, the inlet end of which communicates with the second port of the third heat exchange tube group, and the outlet end of which communicates with the first port of the second heat exchange tube group and can communicate with the second port of the first heat exchange tube group.

[0013] In some alternative embodiments, the ratio range of the lengths of the heat exchange tubes of both the second heat exchange tube group and the third heat exchange tube group to the length of the heat exchange tubes of the first heat exchange tube group is from 0.8 to 1.2.

[0014] In some alternative embodiments, the length of the heat exchange tubes of the second heat exchange tube group is less than or equal to the length of the heat exchange tubes of the third heat exchange tube group.

[0015] In some alternative embodiments, the first heat exchange tube group and the third heat exchange tube group are respectively located on opposite sides of the second heat exchange tube group. The air-conditioning heat exchanger further includes a heat exchange fan, and the heat exchange fan is arranged on the same side of the first heat exchange tube group, the second heat exchange tube group, and the third heat exchange tube group, so that the first heat exchange tube group, the second heat exchange tube group, and the third heat exchange tube group are arranged in sequence along a direction perpendicular to the air outlet or air inlet direction of the heat exchange fan.

[0016] According to the second embodiment provided by the present application, an air-conditioning system is provided, including the air-conditioning heat exchanger as described in any one of the foregoing.

[0017] The air-conditioning heat exchanger and the air-conditioning system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] In this alternative embodiment, a throttling device is provided between two adjacent heat exchange tube groups. When the throttling device operates for throttling, the refrigerant pressure in the heat exchange tube group downstream of the throttling device can be reduced, enabling the heat exchange tube group upstream of the throttling device to condense and release heat, and the heat exchange tube group downstream of the throttling device to evaporate and absorb heat. Moreover, along the direction perpendicular to the air flowing through the air conditioner heat exchanger, multiple heat exchange tube groups are arranged in sequence. In this way, part of the air can be heated when flowing through the heat exchange tube group upstream of the throttling device, and another part of the air can be cooled and dehumidified when flowing through the heat exchange tube group downstream of the throttling device. Therefore, this air conditioner heat exchanger can not only cool and dehumidify the air, but also increase the air temperature, reduce the overall cooling amount of the air conditioner heat exchanger to the room during the dehumidification process, improve the comfort of users, and enhance the user experience.

[0019] The above general description and the following description are only exemplary and explanatory, and are not used to limit this application. Description of the Drawings

[0020] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0021] Figure 1 is a schematic structural diagram of an air conditioner heat exchanger provided by an embodiment of the present disclosure;

[0022] Figure 2 is a schematic structural diagram of another air conditioner heat exchanger provided by an embodiment of the present disclosure;

[0023] Figure 3 is a schematic structural diagram of yet another air conditioner heat exchanger provided by an embodiment of the present disclosure;

[0024] Figure 4 is a schematic structural diagram of yet another air conditioner heat exchanger provided by an embodiment of the present disclosure.

[0025] Reference Numerals:

[0026] 100, heat exchange tube group; 110, first heat exchange tube group; 111, first heat exchange tube section; 120, second heat exchange tube group; 121, second heat exchange tube section; 130, third heat exchange tube group; 131, third heat exchange tube section;

[0027] 200, throttling device; 210, first throttling device; 220, second throttling device;

[0028] 310, first check valve; 320, second check valve;

[0029] 400, heat exchange fan. Detailed implementation manners

[0030] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake 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.

[0031] In the embodiments of the present disclosure, terms such as "first" and "second" in the specification, claims and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0032] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front" and "rear" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an 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.

[0033] In addition, the terms "arrangement", "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a mounting connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0034] The term "and / or" is a description of the association relationship of an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0035] It should be noted that, without conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] An embodiment of the present disclosure provides an air conditioner heat exchanger, such as Figure 4 As shown, the air conditioner heat exchanger includes a plurality of heat exchange tube groups 100 and a throttling device 200, and the throttling device 200 is provided between two adjacent heat exchange tube groups 100. Among them, along the direction perpendicular to the air flowing through the air conditioner heat exchanger, the plurality of heat exchange tube groups 100 are arranged in sequence.

[0037] In this embodiment, the air conditioner heat exchanger includes a throttling device 200, the opening of the throttling device 200 is adjustable, and the throttling device 200 can work in throttling and fully open without throttling. When the throttling device 200 works in throttling, the throttling device 200 can throttle and depressurize the refrigerant inside, so that the refrigerant pressure downstream of the throttling device 200 is less than the refrigerant pressure upstream of the throttling device 200; when the throttling device 200 is fully open without throttling, the throttling device 200 is equivalent to a connecting pipe, and the refrigerant circulates inside the throttling device 200.

[0038] The throttling device 200 is provided between two adjacent heat exchange tube groups 100. In this way, when the throttling device 200 works in throttling, the refrigerant pressure in the heat exchange tube group 100 downstream of the throttling device 200 can be reduced, so that the heat exchange tube group 100 upstream of the throttling device 200 can condense and release heat, and the heat exchange tube group 100 downstream of the throttling device 200 can evaporate and absorb heat. And, along the direction perpendicular to the air flowing through the air conditioner heat exchanger, the plurality of heat exchange tube groups 100 are arranged in sequence. In this way, part of the air can be heated when flowing through the heat exchange tube group 100 upstream of the throttling device 200, and the other part of the air can be cooled and dehumidified when flowing through the heat exchange tube group 100 downstream of the throttling device 200. Therefore, the air conditioner heat exchanger can not only cool and dehumidify the air, but also increase the temperature of the air, reduce the overall cooling amount of the air conditioner heat exchanger to the room during the dehumidification process, improve the comfort of users, and improve the user experience.

[0039] One or more throttling devices 200 are provided inside the air conditioner heat exchanger. When there are multiple throttling devices 200, the multiple throttling devices 200 can work together in throttling. The temperatures of the heat exchange tube groups 100 on both sides of the throttling device 200 are different, and along the flow direction of the refrigerant, the temperature of the heat exchange tube group 100 decreases. Or, when there are multiple throttling devices 200, select one throttling device 200 to work in throttling, and the other throttling devices 200 are fully open without throttling. Under different heat exchange requirements, the throttling device 200 working in throttling can be selected to change the number of heat exchange tube groups 100 for condensing and releasing heat and evaporating and absorbing heat, so as to adjust the refrigerating capacity and heating capacity, improve the dehumidification diversity of the air conditioner heat exchanger, meet various dehumidification requirements, and improve the user experience.

[0040] In this embodiment, the ports of the two heat exchange tube groups 100 at both ends of the multiple heat exchange tube groups 100 can be respectively communicated with the electronic expansion valve and the four-way valve of the air-conditioning system. The air-conditioning heat exchanger is an indoor air-conditioning heat exchanger. When the air-conditioning system performs refrigeration and dehumidification, the electronic expansion valve is fully open without throttling. The high-temperature and high-pressure refrigerant flowing out of the compressor flows through the four-way valve to the outdoor heat exchanger. The refrigerant condenses and releases heat in the outdoor heat exchanger, and after heat exchange, it flows through the fully open and unthrottled electronic expansion valve.

[0041] The refrigerant flowing out of the electronic expansion valve flows into the air-conditioning heat exchanger, and the refrigerant continues to condense and release heat in the upstream heat exchange tube group 100 of the throttling device 200 that works with throttling to provide heat to the room. The throttling device 200 that works with throttling can throttle and depressurize the refrigerant so that the refrigerant evaporates and absorbs heat in the downstream heat exchange tube group 100 for refrigeration and dehumidification. After the heat exchange of the refrigerant in the downstream heat exchange tube group 100 is completed, it flows back to the intake port of the compressor through the four-way valve to complete a refrigeration and dehumidification cycle.

[0042] In some alternative embodiments, as Figures 1 to 4 shown, the multiple heat exchange tube groups 100 include a first heat exchange tube group 110, a second heat exchange tube group 120, and a third heat exchange tube group 130. The first port of the first heat exchange tube group 110 is used to communicate with the electronic expansion valve of the air-conditioning system. A first throttling device 210 is provided between the second port of the first heat exchange tube group 110 and the first port of the second heat exchange tube group 120. A second throttling device 220 is provided between the second port of the second heat exchange tube group 120 and the first port of the third heat exchange tube group 130. The second port of the third heat exchange tube group 130 is used to communicate with the four-way valve of the air-conditioning system. The throttling device 200 includes the first throttling device 210 and the second throttling device 220.

[0043] Exemplarily, the number of the heat exchange tube groups 100 is three, and a throttling device 200 is provided between two adjacent heat exchange tube groups 100. One of the two end heat exchange tube groups 100 is communicated with the electronic expansion valve of the air-conditioning system, and the other heat exchange tube group 100 is communicated with the four-way valve of the air-conditioning system. That is, the first port of the first heat exchange tube group 110 can be communicated with the electronic expansion valve, and the second port of the third heat exchange tube group 130 can be communicated with the four-way valve.

[0044] In this embodiment, the first throttling device 210 and the second throttling device 220 can throttle and work alternatively, and the other can work without throttling. In this way, during dehumidification, according to the working state of the throttling device 200, the heat exchange tube groups 100 participating in refrigeration and dehumidification and the heat exchange tube groups 100 participating in heating and temperature rise can be adjusted to increase the usage scenarios of the air-conditioning heat exchanger and improve the user experience.

[0045] For example, as Figure 1As shown, in the case of refrigeration and dehumidification, the refrigerant can flow through the first heat exchange tube group 110, the first throttling device 210, the second heat exchange tube group 120, the second throttling device 220, and the third heat exchange tube group 130 in sequence within the air conditioner heat exchanger. In the first dehumidification mode, the first throttling device 210 operates for throttling, and the second throttling device 220 is fully open without throttling. At this time, the refrigerant condenses and releases heat within the first heat exchange tube group 110, and evaporates and absorbs heat within the second heat exchange tube group 120 and the third heat exchange tube group 130. In the second dehumidification mode, the first throttling device 210 is fully open without throttling, and the second throttling device 220 operates for throttling. At this time, the refrigerant condenses and releases heat within the first heat exchange tube group 110 and the second heat exchange tube group 120, and evaporates and absorbs heat within the third heat exchange tube group 130. In this way, the heating capacity of the air conditioner heat exchanger in the second dehumidification mode is greater than that in the first dehumidification mode. The heating capacity of the air conditioner heat exchanger can be selected according to the user-set temperature and the actual indoor temperature, so as to select the first throttling device 210 or the second throttling device 220 to be in the working throttling state, improving the effectiveness of indoor temperature adjustment and the user experience.

[0046] In some alternative embodiments, the ratio range of the lengths of the heat exchange tubes of both the second heat exchange tube group 120 and the third heat exchange tube group 130 to the length of the heat exchange tubes of the first heat exchange tube group 110 is from 0.8 to 1.2.

[0047] In this embodiment, the ratio range of the lengths of the heat exchange tubes of both the second heat exchange tube group 120 and the third heat exchange tube group 130 to the length of the heat exchange tubes of the first heat exchange tube group 110 is from 0.8 to 1.2. In this way, when the first throttling device 210 operates for throttling, the heating capacity of the first heat exchange tube group 110 can be equivalent to the total refrigerating capacity of both the second heat exchange tube group 120 and the third heat exchange tube group 130, improving the reasonable distribution of the heat exchange amount of the multiple heat exchange tube groups 100 and the temperature adjustment effect during the dehumidification process.

[0048] Optionally, the ratio of the lengths of the heat exchange tubes of both the second heat exchange tube group 120 and the third heat exchange tube group 130 to the length of the heat exchange tubes of the first heat exchange tube group 110 can be 0.8, 0.85, 0.9, 0.95, 1, 1.05, 1.1, 1.15, or 1.2. Or this ratio can also be 0.83, 0.88, 0.93, 0.98, 1.03, 1.08, 1.13, or 1.18.

[0049] In this embodiment, the specific ratio of the lengths of the heat exchange tubes of both the second heat exchange tube group 120 and the third heat exchange tube group 130 to the length of the heat exchange tubes of the first heat exchange tube group 110 is not specifically limited herein. Those skilled in the art can set it according to the heat exchange experience of the used air conditioner heat exchanger, or can also set it through a limited number of experiments on the used air conditioner heat exchanger, as long as the heating capacity and the refrigerating capacity of the air conditioner heat exchanger can be made equivalent in the first dehumidification mode.

[0050] In some alternative embodiments, the length of the heat exchange tubes of the second heat exchange tube group 120 is less than or equal to the length of the heat exchange tubes of the third heat exchange tube group 130.

[0051] During the refrigeration and dehumidification process, the refrigerant always evaporates and absorbs heat within the third heat exchange tube group 130. In this embodiment, the length of the heat exchange tubes of the second heat exchange tube group 120 is less than or equal to the length of the heat exchange tubes of the third heat exchange tube group 130 to ensure the refrigeration and dehumidification effect of the air conditioner heat exchanger, reduce the occurrence of poor dehumidification effect caused by the relatively short length of the heat exchange tubes through which the refrigerant participating in evaporation and heat absorption flows, and improve the stability and reliability of the operation of the air conditioner heat exchanger.

[0052] In some alternative embodiments, as Figure 2 shown, the first heat exchange tube group 110 includes a plurality of first heat exchange tube segments 111, and the plurality of first heat exchange tube segments 111 are arranged in parallel and / or in series.

[0053] In this embodiment, the plurality of first heat exchange tube segments 111 are arranged in parallel and / or in series, which can increase the design flexibility of the first heat exchange tube group 110, enable the first heat exchange tube group 110 to be optimally configured according to different application requirements and working conditions, and improve the energy efficiency of the air conditioner heat exchanger.

[0054] Arranging the plurality of first heat exchange tube segments 111 in parallel can improve the heat exchange efficiency of the first heat exchange tube group 110 and promote rapid heat exchange. When the plurality of first heat exchange tube segments 111 are arranged in series, the refrigerant can flow sequentially within the plurality of first heat exchange tube segments 111, improving the accuracy of temperature control, the working stability of the air conditioner heat exchanger, and the user experience.

[0055] Exemplarily, in this embodiment, the plurality of first heat exchange tube segments 111 are arranged in parallel and in series as follows: after some of the first heat exchange tube segments 111 are arranged in parallel, they are arranged in series with another part of the first heat exchange tube segments 111; or after some of the first heat exchange tube segments 111 are arranged in series, they are arranged in parallel with another part of the first heat exchange tube segments 111.

[0056] In some alternative embodiments, the second heat exchange tube group 120 includes a plurality of second heat exchange tube segments, and the plurality of second heat exchange tube segments 121 are arranged in parallel and / or in series.

[0057] In this embodiment, the plurality of second heat exchange tube segments 121 are arranged in parallel and / or in series, which can increase the design flexibility of the second heat exchange tube group 120, enable the second heat exchange tube group 120 to be optimally configured according to different application requirements and working conditions, and improve the energy efficiency of the air conditioner heat exchanger.

[0058] The parallel arrangement of multiple second heat exchange tube segments 121 can improve the heat exchange efficiency of the second heat exchange tube group 120 and promote rapid heat exchange. When multiple second heat exchange tube segments 121 are arranged in series, the refrigerant can flow sequentially through the multiple second heat exchange tube segments 121, improving the accuracy of temperature control, the working stability of the air conditioner heat exchanger, and the user experience.

[0059] Exemplarily, in this embodiment, the multiple second heat exchange tube segments 121 are arranged in parallel and in series as follows: after some of the second heat exchange tube segments 121 are arranged in parallel, they are arranged in series with another part of the second heat exchange tube segments 121; or after some of the second heat exchange tube segments 121 are arranged in series, they are arranged in parallel with another part of the second heat exchange tube segments 121.

[0060] Optionally, as Figure 2 shown, the third heat exchange tube group 130 includes multiple third heat exchange tube segments, and the multiple third heat exchange tube segments 131 are arranged in parallel and / or in series.

[0061] In this embodiment, the multiple third heat exchange tube segments 131 are arranged in parallel and / or in series, which can increase the design flexibility of the third heat exchange tube group 130, enabling the third heat exchange tube group 130 to be optimally configured according to different application requirements and working conditions, and improving the energy efficiency of the air conditioner heat exchanger.

[0062] The parallel arrangement of multiple third heat exchange tube segments 131 can improve the heat exchange efficiency of the third heat exchange tube group 130 and promote rapid heat exchange. When multiple third heat exchange tube segments 131 are arranged in series, the refrigerant can flow sequentially through the multiple third heat exchange tube segments 131, improving the accuracy of temperature control, the working stability of the air conditioner heat exchanger, and the user experience.

[0063] Exemplarily, in this embodiment, the multiple third heat exchange tube segments 131 are arranged in parallel and in series as follows: after some of the third heat exchange tube segments 131 are arranged in parallel, they are arranged in series with another part of the third heat exchange tube segments 131; or after some of the third heat exchange tube segments 131 are arranged in series, they are arranged in parallel with another part of the third heat exchange tube segments 131.

[0064] In some alternative embodiments, as Figure 3 shown, the first heat exchange tube group 110 and the third heat exchange tube group 130 are respectively located on opposite sides of the second heat exchange tube group 120. The air conditioner heat exchanger further includes a heat exchange fan 400, and the heat exchange fan 400 is disposed on the same side of the first heat exchange tube group 110, the second heat exchange tube group 120, and the third heat exchange tube group 130, so that the first heat exchange tube group 110, the second heat exchange tube group 120, and the third heat exchange tube group 130 are arranged in sequence along a direction perpendicular to the air outlet or air inlet direction of the heat exchange fan 400.

[0065] In this embodiment, the first port and the second port of the second heat exchange tube group 120 are respectively in corresponding communication with the second port of the first heat exchange tube group 110 and the first port of the third heat exchange tube group 130. The first heat exchange tube group 110 and the third heat exchange tube group 130 are respectively located on opposite sides of the second heat exchange tube group 120, which facilitates the layout of multiple heat exchange components, simplifies the structure, and reduces the installation difficulty.

[0066] The heat exchange fan 400 is arranged on the same side of the first heat exchange tube group 110, the second heat exchange tube group 120, and the third heat exchange tube group 130. The first heat exchange tube group 110, the second heat exchange tube group 120, and the third heat exchange tube group 130 can be respectively arranged on the air inlet or air outlet path of the heat exchange fan 400, so that the air driven by the heat exchange fan 400 can respectively flow through the first heat exchange tube group 110, the second heat exchange tube group 120, and the third heat exchange tube group 130, and then be mixed after different refrigeration and dehumidification or heating and temperature increase, improving the effect of constant temperature dehumidification or temperature increase dehumidification of the air conditioner heat exchanger and enhancing the user experience.

[0067] In some alternative embodiments, as Figures 1 to 3 shown, the air conditioner heat exchanger further includes a first one-way valve 310 and a second one-way valve 320. The inlet end of the first one-way valve 310 is in communication with the second port of the second heat exchange tube group 120, and the inlet end of the first one-way valve 310 can be in communication with the first port of the third heat exchange tube group 130. The outlet end of the first one-way valve 310 is in communication with the first port of the first heat exchange tube group 110.

[0068] The inlet end of the second one-way valve 320 is in communication with the second port of the third heat exchange tube group 130, and the outlet end of the second one-way valve 320 is in communication with the first port of the second heat exchange tube group 120, and the outlet end of the second one-way valve 320 can be in communication with the second port of the first heat exchange tube group 110.

[0069] In this embodiment, the air conditioner heat exchanger further includes a first one-way valve 310 and a second one-way valve 320. The inlet end of the first one-way valve 310 is in communication with the second port of the second heat exchange tube group 120, and the inlet end of the first one-way valve 310 can be in communication with the first port of the third heat exchange tube group 130. That is to say, the inlet end of the first one-way valve 310 is in communication with the connecting pipe between the second port of the second heat exchange tube group 120 and the first port of the third heat exchange tube group 130. The refrigerant flowing out from the first port of the third heat exchange tube group 130 and the second port of the second heat exchange tube group 120 can flow into the first one-way valve 310. The outlet end of the first one-way valve 310 is in communication with the first port of the first heat exchange tube group 110, and the refrigerant flowing into the first one-way valve 310 can flow out of the air conditioner heat exchanger through the first port of the first heat exchange tube group 110.

[0070] The inlet end of the second one-way valve 320 is communicated with the second port of the third heat exchange tube group 130, and the refrigerant flowing into the air conditioner heat exchanger through the second port of the third heat exchange tube group 130 can flow into the second one-way valve 320. The outlet end of the second one-way valve 320 is communicated with the first port of the second heat exchange tube group 120, and the outlet end of the second one-way valve 320 can be communicated with the second port of the first heat exchange tube group 110. The outlet end of the second one-way valve 320 is communicated with the connecting pipe between the first port of the second heat exchange tube group 120 and the second port of the first heat exchange tube group 110. In this way, the refrigerant flowing out of the second one-way valve 320 can flow into the first heat exchange tube group 110 and the second heat exchange tube group 120 respectively.

[0071] In this embodiment, as Figure 2 shown, when the air conditioner system is in the heating mode, the refrigerant flows into the air conditioner heat exchanger through the second port of the third heat exchange tube group 130. At this time, the inlet end of the second one-way valve 320 is communicated with the second port of the third heat exchange tube group 130, and the refrigerant can flow into the third heat exchange tube group 130, the second heat exchange tube group 120 and the first heat exchange tube group 110 respectively. And the refrigerant flowing out of the third heat exchange tube group 130 and the second heat exchange tube group 120 can directly flow through the first one-way valve 310 to the first port of the first heat exchange tube group 110 to flow out of the air conditioner heat exchanger. In this way, the multiple heat exchange tube groups 100 are arranged in parallel through the first one-way valve 310 and the second one-way valve 320, which improves the heating capacity of the air conditioner heat exchanger in the heating mode and improves the user experience.

[0072] Moreover, the outlet end of the first one-way valve 310 is communicated with the first port of the first heat exchange tube group 110, and the outlet end of the second one-way valve 320 is communicated with the first port of the second heat exchange tube group 120. When the air conditioner system is performing refrigeration and dehumidification, the first one-way valve 310 and the second one-way valve 320 are not communicated, so that the refrigerant can flow in the first heat exchange tube group 110, the second heat exchange tube group 120 and the third heat exchange tube group 130 in sequence, so as to heat up or perform refrigeration and dehumidification in different heat exchange tube groups 100, improving the working reliability and stability of the air conditioner heat exchanger and improving the user experience.

[0073] The embodiment of the present disclosure provides an air conditioner heat exchanger, including the air conditioner system described in any one of the above embodiments.

[0074] The air conditioner heat exchanger provided by the embodiment of the present disclosure includes the air conditioner system described in any one of the above embodiments, and thus has all the beneficial effects of the air conditioner system described in any one of the above embodiments, which will not be elaborated here.

[0075] The above description and the accompanying drawings sufficiently illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. 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. An air conditioner heat exchanger, characterized in that, Comprising: A plurality of heat exchange tube groups; A throttling device, with a throttling device provided between two adjacent heat exchange tube groups; Wherein, along the direction perpendicular to the air flowing through the air conditioner heat exchanger, the plurality of heat exchange tube groups are arranged in sequence.

2. The air conditioner heat exchanger according to claim 1, characterized in that The plurality of heat exchange tube groups include a first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group. The first port of the first heat exchange tube group is used to communicate with the electronic expansion valve of the air conditioner system. There is a first throttling device between the second port of the first heat exchange tube group and the first port of the second heat exchange tube group. There is a second throttling device between the second port of the second heat exchange tube group and the first port of the third heat exchange tube group. The second port of the third heat exchange tube group is used to communicate with the four-way valve of the air conditioner system; the throttling device includes a first throttling device and a second throttling device.

3. The air conditioner heat exchanger according to claim 2, characterized in that The first heat exchange tube group includes a plurality of first heat exchange tube segments, and the plurality of first heat exchange tube segments are arranged in parallel and / or in series.

4. The air conditioner heat exchanger according to claim 2, characterized in that The second heat exchange tube group includes a plurality of second heat exchange tube segments, and the plurality of second heat exchange tube segments are arranged in parallel and / or in series.

5. The air conditioner heat exchanger according to claim 2, characterized in that The third heat exchange tube group includes a plurality of third heat exchange tube segments, and the plurality of third heat exchange tube segments are arranged in parallel and / or in series.

6. The air-conditioning heat exchanger according to claim 2, characterized in that, Further comprising: A first check valve, the inlet end is communicated with the second port of the second heat exchange tube group, and the inlet end can be communicated with the first port of the third heat exchange tube group, and the outlet end is communicated with the first port of the first heat exchange tube group; A second check valve, the inlet end is communicated with the second port of the third heat exchange tube group, and the outlet end is communicated with the first port of the second heat exchange tube group, and the outlet end can be communicated with the second port of the first heat exchange tube group.

7. The air conditioner heat exchanger according to claim 2, characterized in that The ratio range of the lengths of the heat exchange tubes of both the second heat exchange tube group and the third heat exchange tube group to the length of the heat exchange tubes of the first heat exchange tube group is 0.8 to 1.

2.

8. The air conditioner heat exchanger according to claim 7, characterized in that The length of the heat exchange tubes of the second heat exchange tube group is less than or equal to the length of the heat exchange tubes of the third heat exchange tube group.

9. The air conditioner heat exchanger according to any one of claims 2 to 8, characterized in that The first heat exchange tube group and the third heat exchange tube group are respectively located on opposite sides of the second heat exchange tube group. The air conditioner heat exchanger further includes a heat exchange fan, and the heat exchange fan is arranged on the same side of the first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group, so that the first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group are arranged in sequence along the direction perpendicular to the air outlet or air inlet direction of the heat exchange fan.

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

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