Heat exchange assembly, indoor unit and air conditioner

Abstract

The invention relates to a heat exchange assembly, an indoor unit and an air conditioner. The heat exchange assembly comprises a first heat exchanger and a second heat exchanger, the second heat exchanger is positioned below the first heat exchanger; wherein the first heat exchanger comprises at least two first sub-heat exchangers, the two adjacent first sub-heat exchangers are oppositely arranged at intervals, and / or the second heat exchanger comprises at least two second sub-heat exchangers, and the two adjacent second sub-heat exchangers are oppositely arranged at intervals; the heat exchange assembly has a dehumidification mode, and in the dehumidification mode, the first heat exchanger is constructed to be a heating heat exchanger, and the second heat exchanger is constructed to be a dehumidification heat exchanger. Through the technical scheme, the heat exchange assembly disclosed by the invention can heat air while dehumidifying, and is suitable for improving the user experience.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air conditioners, in particular, to a heat exchange assembly, an indoor unit and an air conditioner. BACKGROUND

[0002] In the related art, an air conditioner is provided with a heat exchange assembly for refrigeration, heating or dehumidification of air. At present, when the heat exchange assembly dehumidifies, it also causes the indoor temperature to decrease, thereby affecting the user experience. SUMMARY

[0003] The purpose of the present disclosure is to provide a heat exchange assembly that can heat the space while dehumidifying, suitable for improving the user experience.

[0004] To achieve the above purpose, the present disclosure provides a heat exchange assembly, comprising: a first heat exchanger; and a second heat exchanger located below the first heat exchanger; wherein the first heat exchanger comprises at least two first sub-heat exchangers, and adjacent two first sub-heat exchangers are spaced and oppositely arranged, and / or the second heat exchanger comprises at least two second sub-heat exchangers, and adjacent two second sub-heat exchangers are spaced and oppositely arranged; The heat exchange assembly has a dehumidification mode, in which the first heat exchanger is configured as a heating heat exchanger, and the second heat exchanger is configured as a dehumidification heat exchanger.

[0005] Through the above technical solution, in the heat exchange assembly provided by the present disclosure, in the dehumidification mode, since the second heat exchanger is configured as a dehumidification heat exchanger, the second heat exchanger can dehumidify, and at the same time, the second heat exchanger also cools. Since the first heat exchanger is configured as a heating heat exchanger, the first heat exchanger can heat. In this way, it can be avoided that when only the second heat exchanger is used, the indoor temperature decreases in the dehumidification mode. That is, the heat exchange assembly of the present disclosure can realize temperature control dehumidification or constant temperature dehumidification in the dehumidification mode, thereby improving the user experience.

[0006] In addition, since the first heat exchanger is arranged on the upper side and the second heat exchanger is arranged on the lower side, it can be avoided that when the second heat exchanger is arranged on the upper side, the condensed water on the second heat exchanger drops onto the first heat exchanger in the dehumidification mode, and then evaporates on the first heat exchanger, affecting the dehumidification effect. Therefore, the above arrangement can ensure the dehumidification effect in the dehumidification mode.

[0007] In addition, since the two adjacent first sub heat exchangers are spaced and oppositely arranged, the spacing space between the two first sub heat exchangers can form a convection, so that the gas flow can be in full contact with the two adjacent first sub heat exchangers, and the heat exchange effect of the first heat exchanger can be improved. Similarly, since the two adjacent second sub heat exchangers are spaced and oppositely arranged, the spacing space between the two second sub heat exchangers can form a convection, so that the gas flow can be in full contact with the two adjacent second sub heat exchangers, and the heat exchange effect of the second heat exchanger can be improved. When the first heat exchanger is provided with at least two first sub heat exchangers, and the second heat exchanger is provided with at least two second sub heat exchangers, the gas flow can flow in the spacing space between the two first heat exchangers and the two second heat exchangers, so as to mix the hot gas flow and the cold gas flow, thereby improving the effect of constant temperature dehumidification.

[0008] In some possible embodiments, the two adjacent first sub heat exchangers and the two adjacent second sub heat exchangers located below are arranged as a V-shaped heat exchanger, and the first sub heat exchanger and the second sub heat exchanger located below are arranged on the same side of the V-shaped heat exchanger. In this way, the V-shaped heat exchanger is arranged to save space and improve the heat exchange efficiency. In this way, the two first sub heat exchangers are arranged on the two sides of the V-shaped heat exchanger, the two second sub heat exchangers are arranged on the two sides of the V-shaped heat exchanger, and the first heat exchanger and the second heat exchanger are arranged on the same side, so as to form the V-shaped heat exchanger.

[0009] In some possible embodiments, the V-shaped heat exchanger is arranged with an opening upward and a top angle at a lower part. In this way, the bottom of the second heat exchanger is narrow, which is beneficial for arranging a water pan. In addition, the above arrangement makes the spacing between the two adjacent first sub heat exchangers larger, so that in the dehumidification mode, the gas flow heated by the first sub heat exchanger can be in full contact with the gas flow dehumidified by the second sub heat exchanger, so as to improve the constant temperature dehumidification effect. At this time, the spacing between the two adjacent first sub heat exchangers gradually decreases from top to bottom. The spacing between the two adjacent second sub heat exchangers gradually decreases from top to bottom.

[0010] In some possible embodiments, the heat exchange assembly comprises a valve, and the valve is connected in series to the first heat exchanger and the second heat exchanger. In this way, the valve can be used to realize the series connection of the first heat exchanger and the second heat exchanger, so that compared with the parallel connection of the first heat exchanger and the second heat exchanger, the above arrangement can simplify the pipeline of the heat exchange assembly and facilitate the flow of the heat exchange medium.

[0011] In some possible embodiments, in the dehumidification mode, the valve is configured to have a preset opening degree, the preset opening degree being smaller than a maximum opening degree of the valve, and the first heat exchanger is connected upstream of the second heat exchanger. Thus, in the dehumidification mode, the heat exchange medium in the first heat exchanger is depressurized and cooled after entering the second heat exchanger through the valve, so as to perform refrigeration, and thus the first heat exchanger is a heating heat exchanger and the second heat exchanger is a dehumidification heat exchanger in the dehumidification mode by means of the opening degree of the valve.

[0012] In some possible embodiments, the valve is arranged between the two first sub heat exchangers arranged oppositely, and / or the valve is arranged between the two second sub heat exchangers arranged oppositely. Thus, the valve can be arranged by using the space between the two first sub heat exchangers arranged oppositely, so as to facilitate compact arrangement. In addition, the valve is close to the two first sub heat exchangers, so as to improve the flow efficiency of the heat exchange medium. Similarly, the valve can be arranged by using the space between the two second sub heat exchangers arranged oppositely, so as to facilitate compact arrangement. In addition, the valve is close to the two second sub heat exchangers, so as to improve the flow efficiency of the heat exchange medium.

[0013] In some possible embodiments, the at least two first sub heat exchangers are connected in parallel, each of the first sub heat exchangers is provided with an inlet, the at least two second sub heat exchangers are connected in parallel, and each of the second sub heat exchangers is provided with an outlet. Thus, the heat exchange assembly can realize "multiple inlets and multiple outlets" in the dehumidification mode, that is, the heat exchange medium can enter each of the first sub heat exchangers through multiple inlets and flow out of each of the second sub heat exchangers through multiple outlets, so as to effectively improve the heat exchange efficiency of the first heat exchanger and the second heat exchanger.

[0014] In some possible embodiments, the at least two first sub heat exchangers are connected in series, the first sub heat exchanger located at the most upstream is provided with an inlet, and the at least two second sub heat exchangers are connected in parallel, each of the second sub heat exchangers is provided with an outlet. Thus, the heat exchange assembly can realize "one inlet and multiple outlets" in the dehumidification mode, that is, the heat exchange medium can enter the first sub heat exchanger located at the most upstream through the inlet, then flow through the at least one first sub heat exchanger located downstream in sequence, flow into the valve, and then flow into the at least two second sub heat exchangers through the valve, and then flow out of each of the second sub heat exchangers through multiple outlets, so as to improve the heat exchange efficiency of the second heat exchanger and facilitate improvement of the dehumidification effect.

[0015] In some possible implementations, at least two first sub-heat exchangers are connected in parallel, each with an inlet; at least two second sub-heat exchangers are connected in series, with the downstream second sub-heat exchanger having an outlet. Thus, the heat exchange assembly can achieve "multiple inlets and one outlet" in dehumidification mode. That is, the heat exchange medium can enter each first sub-heat exchanger through multiple inlets, then flow into a valve, and the heat exchange medium flowing out of the valve can enter the upstream second sub-heat exchanger, then sequentially flow through at least one downstream second sub-heat exchanger, and finally exit through the outlet of the downstream second sub-heat exchanger. This improves the heat exchange efficiency of the first heat exchangers, thus enhancing the temperature control effect.

[0016] In some possible implementations, the valve is configured as an expansion valve or a solenoid valve.

[0017] In some possible implementations, the heat exchange assembly has a cooling or heating mode. In this mode, the valve is configured to have its maximum opening, and both the first and second heat exchangers are constructed as either cooling or heating heat exchangers. Thus, in cooling mode, both the first and second heat exchangers can perform cooling, thereby ensuring a cooling effect. Similarly, in heating mode, both the first and second heat exchangers can perform heating, thereby ensuring a heating effect.

[0018] In some possible implementations, both the first and second sub-heat exchangers include heat exchange tubes, wherein the heat exchange tubes of the two oppositely arranged first sub-heat exchangers have different diameters, and / or the heat exchange tubes of the two oppositely arranged second sub-heat exchangers have different diameters.

[0019] In some possible implementations, the diameter of the heat exchange tubes of the first sub-heat exchanger is different from the diameter of the heat exchange tubes of the second sub-heat exchanger located below.

[0020] In some possible implementations, the first sub-heat exchanger includes a single row of heat exchange tubes or multiple rows of heat exchange tubes, and / or the second sub-heat exchanger includes a single row of heat exchange tubes or multiple rows of heat exchange tubes.

[0021] In some possible implementations, the number of rows of heat exchange tubes in the first sub-heat exchanger is greater than the number of rows of heat exchange tubes in the second sub-heat exchanger. Therefore, the first sub-heat exchanger has better heat exchange performance, which is beneficial for improving the temperature control effect in dehumidification mode.

[0022] In some possible implementations, the number of rows of heat exchange tubes in the first sub-heat exchanger is less than the number of rows of heat exchange tubes in the second sub-heat exchanger. Therefore, the second sub-heat exchanger has a better heat exchange effect, which is beneficial for improving the dehumidification effect in dehumidification mode.

[0023] According to a second aspect of the present disclosure, there is provided an indoor unit comprising the heat exchange assembly as described above.

[0024] In some possible implementations, the indoor unit is configured as a wall-mounted air conditioner or a ducted air conditioner.

[0025] In some possible implementations, the indoor unit has a front air outlet, and the heat exchange assembly is arranged upstream of the front air outlet, wherein the at least two first sub-heat exchangers are arranged in the front-rear direction, and / or the at least two second sub-heat exchangers are arranged in the front-rear direction. In this way, the at least two first sub-heat exchangers can exchange heat with the air flow in sequence to ensure the heat exchange effect of the first heat exchanger. Similarly, the at least two second sub-heat exchangers can exchange heat with the air flow in sequence to ensure the heat exchange effect of the second heat exchanger.

[0026] According to a third aspect of the present disclosure, there is provided an air conditioner comprising the heat exchange assembly as described above, or the indoor unit as described above.

[0027] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, which together with the following detailed description, serve to explain the present disclosure. In the drawings: Figure 1 is a structural schematic diagram of a heat exchange assembly according to an embodiment of the present disclosure, wherein the heat exchange assembly is in a dehumidification mode or a cooling mode; Figure 2 is a structural schematic diagram of a heat exchange assembly according to another embodiment of the present disclosure, wherein the heat exchange assembly is in a dehumidification mode or a cooling mode; Figure 3 is a structural schematic diagram of a heat exchange assembly according to yet another embodiment of the present disclosure, wherein the heat exchange assembly is in a dehumidification mode or a cooling mode; Figure 4 is a structural schematic diagram of a heat exchange assembly according to an embodiment of the present disclosure, wherein the heat exchange assembly is in a heating mode; Figure 5 is a structural schematic diagram of an indoor unit according to an embodiment of the present disclosure, wherein the indoor unit is configured as a ducted air conditioner.

[0029] REFERENCE SIGNS 1 - first heat exchanger, 11 - first sub-heat exchanger, 2 - second heat exchanger, 21 - second sub-heat exchanger, 3 - valve, 4 - front air outlet, 5 - fan, 10 - inlet, 20 - outlet, 30 - heat exchange tube. DETAILED DESCRIPTION

[0030] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0031] In the present disclosure, the orientation words such as "upper, lower" used without the opposite description can refer to the upper and lower in Figures 1 to 5 , wherein the upper and lower directions also correspond to the gravity direction of the heat exchange assembly or air conditioner. "Front, rear" can refer to the front and rear in Figure 5 . "Inner, outer" refers to the inner and outer of the contour of each part itself. The terms "first, second" used are for distinguishing one element from another element, and do not have sequential or important meanings. Among them, "multiple" refers to two or more. In addition, the following description, when referring to the drawings, the same reference signs in different drawings represent the same or similar elements, and the present disclosure does not make redundant descriptions.

[0032] According to some embodiments of the present disclosure, a heat exchange assembly is provided, referring to Figures 1 to 3 , the heat exchange assembly comprises: a first heat exchanger 1; and a second heat exchanger 2 located below the first heat exchanger 1; wherein the first heat exchanger 1 comprises at least two first sub-heat exchangers 11, and adjacent two first sub-heat exchangers 11 are spaced and oppositely arranged, and / or the second heat exchanger 2 comprises at least two second sub-heat exchangers 21, and adjacent two second sub-heat exchangers 21 are spaced and oppositely arranged; the heat exchange assembly has a dehumidification mode, in which the first heat exchanger 1 is configured as a heating heat exchanger, and the second heat exchanger 2 is configured as a dehumidification heat exchanger.

[0033] Through the above technical solution, in the heat exchange assembly provided by the present disclosure, in the dehumidification mode, since the second heat exchanger 2 is configured as a dehumidification heat exchanger, the second heat exchanger 2 can dehumidify, at the same time, the second heat exchanger 2 will also cool, wherein, since the first heat exchanger 1 is configured as a heating heat exchanger, the first heat exchanger 1 can heat, so that when the second heat exchanger 2 is used alone, the indoor temperature is reduced in the dehumidification mode can be avoided, that is, the heat exchange assembly of the present disclosure can realize temperature control dehumidification or constant temperature dehumidification in the dehumidification mode, thereby improving the user experience.

[0034] In addition, since the first heat exchanger 1 is arranged on the upper side and the second heat exchanger 2 is arranged on the lower side, it can be avoided that when the second heat exchanger 2 is arranged on the upper side, the condensed water on the second heat exchanger 2 drops onto the first heat exchanger 1 in the dehumidification mode, and then evaporates on the first heat exchanger 1, affecting the dehumidification effect. Therefore, the above arrangement can ensure the dehumidification effect in the dehumidification mode.

[0035] Furthermore, since adjacent first sub-heat exchangers 11 are arranged at intervals and opposite to each other, convection can be formed in the space between them. This allows for sufficient contact between the airflow and the two adjacent first sub-heat exchangers 11, improving the heat exchange effect of the first heat exchanger 1. Similarly, since adjacent second sub-heat exchangers 21 are arranged at intervals and opposite to each other, convection can be formed in the space between them. This allows for sufficient contact between the airflow and the two adjacent second sub-heat exchangers 21, improving the heat exchange effect of the second heat exchanger 2. When the first heat exchanger 1 is equipped with at least two first sub-heat exchangers 11, and the second heat exchanger 2 is equipped with at least two second sub-heat exchangers 21, the airflow can flow fully in the space between the two first heat exchangers 1 and the second heat exchanger 2, thereby achieving mixing of hot and cold airflow and improving the effect of constant temperature dehumidification.

[0036] It should be noted that at least two first sub-heat exchangers 11 can be arranged alternately, for example, arranged alternately along a direction perpendicular to the up and down direction, that is, arranged alternately along the left and right direction or the front and back direction. Similarly, at least two second sub-heat exchangers 21 can be arranged alternately, for example, arranged alternately along a direction perpendicular to the up and down direction, that is, arranged alternately along the left and right direction or the front and back direction.

[0037] Furthermore, the arrangement of two adjacent first sub-heat exchangers 11 facing each other can be understood as the heat exchange surfaces of the two first sub-heat exchangers 11 being arranged opposite each other, that is, the adjacent heat exchange surfaces of the two first sub-heat exchangers 11 are spaced apart and facing each other. Heat exchange surfaces are provided on both sides of the thickness direction of the heat exchanger. Similarly, the arrangement of two adjacent second sub-heat exchangers 21 facing each other can be understood as the heat exchange surfaces of the two second sub-heat exchangers 21 being arranged opposite each other.

[0038] In some embodiments of this disclosure, reference is made to Figures 1 to 3 As shown, two adjacent first sub-heat exchangers 11 and two adjacent second sub-heat exchangers 21 located below can be arranged together to form a V-shaped heat exchanger. The first sub-heat exchangers 11 and the second sub-heat exchangers 21 located below are arranged on the same side of the V-shaped heat exchanger. This V-shaped heat exchanger arrangement facilitates improved heat exchange efficiency while saving space. Specifically, the two first sub-heat exchangers 11 are respectively located on both sides of the V-shaped heat exchanger, and the two second sub-heat exchangers 21 are also respectively located on both sides of the V-shaped heat exchanger. The arrangement of the first heat exchanger 1 and the second heat exchanger 2 on the same side facilitates the formation of a V-shaped heat exchanger.

[0039] In some implementations, reference Figures 1 to 3As shown in FIG. 1, the V-shaped heat exchanger can be configured to have the opening facing upward and the top corner located at the lower part. In this way, the bottom of the second heat exchanger 2 is relatively narrow, which is conducive to arranging the water pan. In addition, the above arrangement makes the interval between the two adjacent first sub-heat exchangers 11 relatively large, thereby facilitating, in the dehumidification mode, the air flow heated by the first sub-heat exchangers 11 to fully contact the air flow dehumidified by the second sub-heat exchangers 21, so as to improve the constant temperature dehumidification effect. At this time, the interval between the two adjacent first sub-heat exchangers 11 gradually decreases from top to bottom. The interval between the two adjacent second sub-heat exchangers 21 gradually decreases from top to bottom.

[0040] In some embodiments, the V-shaped heat exchanger can also be configured to have the opening facing downward and the top corner located at the upper part. In this way, the V-shaped heat exchanger in the upside-down form facilitates, in the dehumidification mode, the condensed water on the second sub-heat exchangers 21 to flow into the water pan along the heat exchange surface of the second sub-heat exchangers 21.

[0041] In some embodiments of the present disclosure, with reference to Figures 1 to 3 As shown in FIG. 1, the heat exchange assembly includes a valve 3, which is connected in series between the first heat exchanger 1 and the second heat exchanger 2. In this way, the valve 3 can be used to realize the series connection of the first heat exchanger 1 and the second heat exchanger 2, thereby simplifying the pipeline of the heat exchange assembly compared with the parallel connection of the first heat exchanger 1 and the second heat exchanger 2, and facilitating the flow of the heat exchange medium.

[0042] In some embodiments, with reference to Figures 1 to 3 As shown in FIG. 1, in the dehumidification mode, the valve 3 is configured to have a preset opening degree, the preset opening degree is smaller than the maximum opening degree of the valve 3, and the first heat exchanger 1 is connected upstream of the second heat exchanger 2. In this way, in the dehumidification mode, since the opening degree of the valve 3 is smaller than the maximum opening degree, the heat exchange medium in the first heat exchanger 1 will be depressurized and cooled after entering the second heat exchanger 2 through the valve 3, so as to facilitate refrigeration, thereby realizing, through the opening degree of the valve 3, that the first heat exchanger 1 is a heating heat exchanger and the second heat exchanger 2 is a dehumidification heat exchanger in the dehumidification mode.

[0043] In some embodiments, with reference to Figures 1 to 3 As shown in FIG. 1, the valve 3 is arranged between the two oppositely arranged first sub-heat exchangers 11, and / or the valve 3 is arranged between the two oppositely arranged second sub-heat exchangers 21. In this way, the interval space between the two oppositely arranged first sub-heat exchangers 11 can be used to arrange the valve 3, thereby facilitating compact arrangement. In addition, the valve 3 is relatively close to the two first sub-heat exchangers 11, which is conducive to improving the flow efficiency of the heat exchange medium. Similarly, the interval space between the two oppositely arranged second sub-heat exchangers 21 can be used to arrange the valve 3, thereby facilitating compact arrangement. In addition, the valve 3 is relatively close to the two second sub-heat exchangers 21, which is conducive to improving the flow efficiency of the heat exchange medium.

[0044] Of course, in other embodiments, the valve 3 can also be arranged outside the two first sub-heat exchangers 11 arranged oppositely, and / or the valve 3 is arranged outside the two second sub-heat exchangers 21 arranged oppositely, so as to avoid affecting the heat exchange of the first heat exchanger 1 and / or affecting the heat exchange of the second heat exchanger 2.

[0045] In some embodiments, the valve 3 can be configured as an expansion valve 3 or a solenoid valve 3. The present disclosure does not make any limitation in this regard.

[0046] In some embodiments, as shown in Figures 1 to 3 , the heat exchange assembly can have a cooling mode, in which the valve 3 is configured to have a maximum opening degree, and the first heat exchanger 1 and the second heat exchanger 2 are both configured as cooling heat exchangers. In this way, in the cooling mode, the first heat exchanger 1 and the second heat exchanger 2 can both perform cooling, so as to ensure the cooling effect. Moreover, the valve 3 is configured to have a maximum opening degree, so as to avoid affecting the flow, pressure and temperature of the heat exchange medium.

[0047] In some embodiments, as shown in Figure 4 , the heat exchange assembly can have a heating mode, in which the valve 3 is configured to have a maximum opening degree, and the first heat exchanger 1 and the second heat exchanger 2 are both configured as heating heat exchangers. In this way, in the heating mode, the first heat exchanger 1 and the second heat exchanger 2 can both perform heating, so as to ensure the heating effect. Moreover, the valve 3 is configured to have a maximum opening degree, so as to avoid affecting the flow, pressure and temperature of the heat exchange medium.

[0048] In some embodiments, the flow direction of the heat exchange medium in the cooling mode and the heating mode is opposite.

[0049] In some embodiments, as shown in Figure 1 , the at least two first sub-heat exchangers 11 are connected in parallel, and each first sub-heat exchanger 11 is provided with an inlet 10; the at least two second sub-heat exchangers 21 are connected in parallel, and each second sub-heat exchanger 21 is provided with an outlet 20. In this way, the heat exchange assembly can realize "multiple in and multiple out" in the dehumidification mode, that is, the heat exchange medium can enter each first sub-heat exchanger 11 through multiple inlets 10, and then flow out of each second sub-heat exchanger 21 through multiple outlets 20, so as to effectively improve the heat exchange efficiency of the first heat exchanger 1 and the second heat exchanger 2.

[0050] In some embodiments, as shown in Figure 2As shown in FIG. 1, the at least two first sub-heat exchangers 11 are connected in series, and the first sub-heat exchanger 11 located at the most upstream is provided with the inlet 10; the at least two second sub-heat exchangers 21 are connected in parallel, and each second sub-heat exchanger 21 is provided with the outlet 20. In this way, the heat exchange assembly can realize "one-in and multiple-out" in the dehumidification mode, that is, the heat exchange medium can enter the first sub-heat exchanger 11 located at the most upstream through the inlet 10, then flow through the at least one first sub-heat exchanger 11 located at the downstream in sequence, and then flow into the valve 3, and then the heat exchange medium flowing out of the valve 3 can enter the at least two second sub-heat exchangers 21 in sequence, and then flow out of each second sub-heat exchanger 21 through the multiple outlets 20, thereby improving the heat exchange efficiency of the second heat exchanger 2 and being beneficial to improving the dehumidification effect.

[0051] In some embodiments, referring to FIG. 1, Figure 3 As shown in FIG. 1, the at least two first sub-heat exchangers 11 are connected in series, and the first sub-heat exchanger 11 located at the most upstream is provided with the inlet 10; the at least two second sub-heat exchangers 21 are connected in parallel, and each second sub-heat exchanger 21 is provided with the outlet 20. In this way, the heat exchange assembly can realize "one-in and multiple-out" in the dehumidification mode, that is, the heat exchange medium can enter the first sub-heat exchanger 11 located at the most upstream through the inlet 10, then flow through the at least one first sub-heat exchanger 11 located at the downstream in sequence, and then flow into the valve 3, and then the heat exchange medium flowing out of the valve 3 can enter the at least two second sub-heat exchangers 21 in sequence, and then flow out of each second sub-heat exchanger 21 through the multiple outlets 20, thereby improving the heat exchange efficiency of the second heat exchanger 2 and being beneficial to improving the dehumidification effect.

[0052] In some embodiments, when the heat exchange medium flows in the opposite direction, the above-mentioned inlet 10 is used for flowing out of the heat exchange medium, and the above-mentioned outlet 20 is used for flowing into the heat exchange medium.

[0053] In some embodiments of the present disclosure, referring to FIG. 1, Figures 1 to 3 As shown in FIG. 1, the first sub-heat exchanger 11 and the second sub-heat exchanger 21 can each include a heat exchange pipe 30, and the pipe diameter of the heat exchange pipe 30 of the two first sub-heat exchangers 11 arranged oppositely can be different. In this way, by virtue of the different pipe diameters, the first sub-heat exchangers 11 can be arranged flexibly. For example, the first sub-heat exchanger 11 with a larger pipe diameter can be arranged upstream of the air outlet direction of the first sub-heat exchanger 11 with a smaller pipe diameter. Of course, in other embodiments, the pipe diameter of the heat exchange pipe 30 of the two first sub-heat exchangers 11 arranged oppositely can be the same. In this way, maintenance and replacement are facilitated.

[0054] Similarly, referring to FIG. 1, Figures 1 to 3As shown, the heat exchange tubes 30 of the two opposing second sub-heat exchangers 21 can have different diameters. This allows for flexible arrangement of the second sub-heat exchangers 21 by varying the tube diameters. For example, the second sub-heat exchanger 21 with a larger tube diameter can be positioned upstream of the second sub-heat exchanger 21 in the air outlet direction. Of course, in other embodiments, the heat exchange tubes 30 of the two opposing second sub-heat exchangers 21 can have the same diameter. This facilitates maintenance and replacement.

[0055] In some embodiments, reference Figures 1 to 3 As shown, the diameter of the heat exchange tube 30 of the first sub-heat exchanger 11 is different from the diameter of the heat exchange tube 30 of the second sub-heat exchanger 21 located below. Thus, in the embodiment where the diameters of the heat exchange tubes 30 of the two oppositely arranged first sub-heat exchangers 11 are different, and the diameters of the heat exchange tubes 30 of the two oppositely arranged second sub-heat exchangers 21 are different, the above arrangement ensures that the diameters of any two sub-heat exchangers are different.

[0056] In some implementations, reference Figures 1 to 3 As shown, the first sub-heat exchanger 11 includes a single row of heat exchange tubes 30 or multiple rows of heat exchange tubes 30. This allows for flexible configuration of the number of rows of heat exchange tubes 30 as needed. The first sub-heat exchanger 11 may include two rows of heat exchange tubes 30, but this disclosure does not limit this.

[0057] Similarly, refer to Figures 1 to 3 As shown, the second sub-heat exchanger 21 includes a single row of heat exchange tubes 30 or multiple rows of heat exchange tubes 30. This allows for flexible configuration of the number of rows of heat exchange tubes 30 as needed. The second sub-heat exchanger 21 may include two rows of heat exchange tubes 30, but this disclosure does not limit this.

[0058] In some embodiments, the number of rows of heat exchange tubes 30 in the first sub-heat exchanger 11 can be greater than the number of rows of heat exchange tubes 30 in the second sub-heat exchanger 21. In this way, the heat exchange effect of the first sub-heat exchanger 11 is better, which is beneficial to improving the constant temperature effect in dehumidification mode.

[0059] In some embodiments, the number of rows of heat exchange tubes 30 in the first sub-heat exchanger 11 can be less than the number of rows of heat exchange tubes 30 in the second sub-heat exchanger 21. In this way, the heat exchange effect of the second sub-heat exchanger 21 is better, which is beneficial to improving the dehumidification effect in dehumidification mode.

[0060] In some embodiments, reference Figures 1 to 3 As shown, the number of rows of heat exchange tubes 30 in the first sub-heat exchanger 11 can also be equal to the number of rows of heat exchange tubes 30 in the second sub-heat exchanger 21. This disclosure does not impose any limitations on this.

[0061] According to a second aspect of the present disclosure, an indoor unit is provided, comprising the heat exchange assembly as above. The air conditioner has all the beneficial effects of the heat exchange assembly as above, which will not be repeated here.

[0062] In some embodiments, as shown in FIG. 1, the indoor unit can be configured as a ceiling cassette or a ducted type. The indoor unit has a front air outlet 4, and the heat exchange assembly is arranged upstream of the front air outlet 4. At least two first sub-heat exchangers 11 can be arranged in the front-rear direction, and / or at least two second sub-heat exchangers 21 can be arranged in the front-rear direction. In this way, the at least two first sub-heat exchangers 11 can be sequentially heat-exchanged with the airflow to ensure the heat exchange effect of the first heat exchanger 1. Similarly, the at least two second sub-heat exchangers 21 can be sequentially heat-exchanged with the airflow to ensure the heat exchange effect of the second heat exchanger 2. Figure 5 Of course, in other embodiments, the at least two first sub-heat exchangers 11 can be arranged in the left-right direction, and / or the at least two second sub-heat exchangers 21 can be arranged in the left-right direction. The present disclosure does not limit this. The up-down direction, the front-rear direction, and the left-right direction are perpendicular to each other.

[0063] According to a third aspect of the present disclosure, an air conditioner is provided, comprising the heat exchange assembly as above, or the indoor unit as above. The air conditioner has all the beneficial effects of the heat exchange assembly or the indoor unit as above, which will not be repeated here.

[0064] Hereinafter, the heat exchange process of the heat exchange assembly will be described in detail in combination with the above specific embodiments. As shown in FIG. 1, when the heat exchange assembly is in a dehumidification mode, the heat exchange medium enters each first sub-heat exchanger 11 through the plurality of inlets 10, and then flows out of each second sub-heat exchanger 21 through the plurality of outlets 20. The valve 3 has a preset opening degree, so that the first heat exchanger 1 is configured as a heating heat exchanger, and the second heat exchanger 2 is configured as a dehumidification heat exchanger. The airflow blown out by the fan 5 first contacts the first sub-heat exchanger 11 and the second sub-heat exchanger 21 arranged at the rear, and then contacts the first sub-heat exchanger 11 and the second sub-heat exchanger 21 arranged at the front. The first sub-heat exchanger 11 is used to heat the airflow, and the second sub-heat exchanger 21 is used to dehumidify the airflow, thereby achieving constant temperature dehumidification.

[0065] Figure 1 When the heat exchange assembly is in a cooling mode, as shown in FIG. 2, the heat exchange medium enters each second sub-heat exchanger 21 through the plurality of inlets 10, and then flows out of each first sub-heat exchanger 11 through the plurality of outlets 20. The valve 3 has a preset opening degree, so that the first heat exchanger 1 is configured as a cooling heat exchanger, and the second heat exchanger 2 is configured as a heating heat exchanger. The airflow blown out by the fan 5 first contacts the second sub-heat exchanger 21 and the first sub-heat exchanger 11 arranged at the front, and then contacts the second sub-heat exchanger 21 and the first sub-heat exchanger 11 arranged at the rear. The second sub-heat exchanger 21 is used to cool the airflow, and the first sub-heat exchanger 11 is used to heat the airflow, thereby achieving constant temperature cooling.

[0066] When the heat exchange assembly is in a cooling mode, as shown in FIG. 2, the heat exchange medium enters each second sub-heat exchanger 21 through the plurality of inlets 10, and then flows out of each first sub-heat exchanger 11 through the plurality of outlets 20. The valve 3 has a preset opening degree, so that the first heat exchanger 1 is configured as a cooling heat exchanger, and the second heat exchanger 2 is configured as a heating heat exchanger. The airflow blown out by the fan 5 first contacts the second sub-heat exchanger 21 and the first sub-heat exchanger 11 arranged at the front, and then contacts the second sub-heat exchanger 21 and the first sub-heat exchanger 11 arranged at the rear. The second sub-heat exchanger 21 is used to cool the airflow, and the first sub-heat exchanger 11 is used to heat the airflow, thereby achieving constant temperature cooling. Figure 1 ​As shown, the heat exchange medium enters each first sub-heat exchanger 11 through multiple inlets 10 and exits each second sub-heat exchanger 21 through multiple outlets 20. The valve 3 is at its maximum opening, ensuring that both the first and second heat exchangers 1 and 2 are configured as refrigeration heat exchangers. The airflow from the fan 5 blows towards the heat exchange components, first contacting the rearmost first and second sub-heat exchangers 11 and 21, and then contacting the frontmost first and second sub-heat exchangers 11 and 21. Both the first and second sub-heat exchangers 11 and 21 are used to cool the airflow, thereby achieving refrigeration.

[0067] When the heat exchange component is in heating mode, refer to Figure 4 As shown, the heat exchange medium flows into each second sub-heat exchanger 21 through multiple outlets 20 and flows out of each first sub-heat exchanger 11 through multiple inlets 10. The valve 3 is at its maximum opening, so that both the first heat exchanger 1 and the second heat exchanger 2 are configured as heating heat exchangers. The airflow from the fan 5 blows towards the heat exchange components, first contacting the rearmost first sub-heat exchanger 11 and the second sub-heat exchanger 21, and then contacting the frontmost first sub-heat exchanger 11 and the second sub-heat exchanger 21. Both the first sub-heat exchanger 11 and the second sub-heat exchanger 21 are used to heat the airflow, thereby achieving heating.

[0068] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0070] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A heat exchange assembly, characterized by The heat exchange assembly comprises: a first heat exchanger; and a second heat exchanger located below the first heat exchanger; wherein the first heat exchanger comprises at least two first sub-heat exchangers, and adjacent two first sub-heat exchangers are spaced and oppositely arranged, and / or the second heat exchanger comprises at least two second sub-heat exchangers, and adjacent two second sub-heat exchangers are spaced and oppositely arranged; the heat exchange assembly has a dehumidification mode, in which the first heat exchanger is configured as a heating heat exchanger, and the second heat exchanger is configured as a dehumidification heat exchanger.

2. The heat exchange assembly of claim 1, wherein, The adjacent two first sub-heat exchangers and the adjacent two second sub-heat exchangers located below are jointly arranged as a V-shaped heat exchanger, and the first sub-heat exchanger and the second sub-heat exchanger located below are arranged on the same side of the V-shaped heat exchanger.

3. The heat exchange assembly of claim 2, wherein, The V-shaped heat exchanger is configured to have an opening upward, and the top angle is located at the lower part.

4. Heat exchange assembly according to any of claims 1-3, characterized in that The heat exchange assembly comprises a valve which is in series communication with the first heat exchanger and the second heat exchanger.

5. The heat exchange assembly of claim 4, wherein, In the dehumidification mode, the valve is configured to have a preset opening degree, the preset opening degree is smaller than the maximum opening degree of the valve, and the first heat exchanger is communicated upstream of the second heat exchanger.

6. The heat exchange assembly of claim 4, wherein, The valve is arranged between the oppositely arranged two first sub-heat exchangers, and / or the valve is arranged between the oppositely arranged two second sub-heat exchangers.

7. The heat exchange assembly of claim 4, wherein, The at least two first sub-heat exchangers are connected in parallel, and each of the first sub-heat exchangers is provided with an inlet; the at least two second sub-heat exchangers are connected in parallel, and each of the second sub-heat exchangers is provided with an outlet.

8. The heat exchange assembly of claim 4, wherein, The at least two first sub-heat exchangers are connected in series, and the first sub-heat exchanger located at the most upstream is provided with an inlet; the at least two second sub-heat exchangers are connected in parallel, and each of the second sub-heat exchangers is provided with an outlet.

9. The heat exchange assembly of claim 4, wherein, The at least two first sub-heat exchangers are connected in parallel, and each of the first sub-heat exchangers is provided with an inlet; the at least two second sub-heat exchangers are connected in series, and the second sub-heat exchanger located at the most downstream is provided with an outlet.

10. The heat exchange assembly of claim 4, wherein, The valve is configured as an expansion valve or a solenoid valve.

11. The heat exchange assembly of claim 4, wherein, The heat exchange assembly has a refrigeration or heating mode, in which the valve is configured to have a maximum opening degree, and the first heat exchanger and the second heat exchanger are both configured as a refrigeration heat exchanger or a heating heat exchanger.

12. The heat exchange assembly of claim 1, wherein, The first sub-heat exchanger and the second sub-heat exchanger both comprise heat exchange tubes, wherein the diameters of the heat exchange tubes of the oppositely arranged two first sub-heat exchangers are different, and / or the diameters of the heat exchange tubes of the oppositely arranged two second sub-heat exchangers are different.

13. The heat exchange assembly of claim 12, wherein, The diameter of the heat exchange tube of the first sub-heat exchanger is different from the diameter of the heat exchange tube of the second sub-heat exchanger located below.

14. The heat exchange assembly of claim 1, wherein, The first sub-heat exchanger comprises single-row heat exchange tubes or multi-row heat exchange tubes, and / or the second sub-heat exchanger comprises single-row heat exchange tubes or multi-row heat exchange tubes.

15. The heat exchange assembly of claim 14, wherein, The number of rows of the heat exchange tubes of the first sub-heat exchanger is greater than the number of rows of the heat exchange tubes of the second sub-heat exchanger.

16. The heat exchange assembly of claim 14, wherein, The number of rows of the heat exchange tubes of the first sub-heat exchanger is less than the number of rows of the heat exchange tubes of the second sub-heat exchanger.

17. An indoor unit, characterized by comprising: The heat exchange assembly comprises the heat exchange assembly according to any one of claims 1-16.

18. The indoor unit of claim 17, characterized in that, The indoor unit is configured as a wall-mounted air conditioner or a ducted air conditioner.

19. The indoor unit of claim 18, characterized in that, The indoor unit has a front air outlet, and the heat exchange assembly is arranged upstream of the front air outlet, wherein at least two first sub-heat exchangers are arranged in a front-rear direction, and / or at least two second sub-heat exchangers are arranged in the front-rear direction.

20. An air conditioner characterized by comprising: The heat exchange assembly according to any one of claims 1-16, or the indoor unit according to any one of claims 17-19.

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