Heat exchanger components and air conditioners

Abstract

The present invention provides a heat exchanger assembly and an air conditioner. The heat exchanger assembly includes: a heat exchanger, which is arranged between an air inlet and an air outlet; a plurality of air guide baffles, wherein the plurality of air guide baffles are located on the windward side of the heat exchanger close to the heat exchanger; wherein the direction from the air inlet to the air outlet is the air inlet direction, and the heat exchanger is divided into a first heat exchange segment and a second heat exchange segment along the air inlet direction, and the projection length of the first heat exchange segment on a projection plane parallel to the air inlet direction is less than or equal to the projection length of the second heat exchange segment on the projection plane; and the plurality of air guide baffles are spaced apart from the heat exchanger. The present invention utilizes air guide baffles to change the direction of the airflow from the air inlet to the heat exchanger, thereby avoiding the problem in the prior art that more air flows through the upper part of the heat exchanger than through the lower part thereof, and allowing the airflow to pass through the heat exchanger evenly, thereby solving the problem of uneven air intake in the V-shaped heat exchanger in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to a heat exchanger assembly and an air conditioner. Background Art

[0002] The uniformity of the air intake of the indoor heat exchanger is a key factor affecting the heat exchange performance of the air conditioner indoor unit. In the air conditioner with a centrifugal fan system, the air intake of the heat exchanger is uneven due to the limitations of the overall structure size, the structure size of the heat exchanger, and the spatial position of the heat exchanger, which leads to a decrease in the heat exchange performance of the air conditioner.

[0003] To ensure the cooling and heating performance requirements of air conditioners, the problem of uneven air intake is usually solved by increasing the heat exchanger area, which increases costs. To avoid the above problems, air conditioners in the prior art use V-shaped heat exchangers. However, the V-shaped heat exchanger has the following problems with air intake uniformity:

[0004] The pressure difference between the windward side and the leeward side of the upper part of the V-shaped heat exchanger is large, while the pressure difference between the windward side and the leeward side of the lower part of the V-shaped heat exchanger is small, which leads to more airflow passing through the upper part of the V-shaped heat exchanger than the lower part, causing uneven air intake of the V-shaped heat exchanger, thereby affecting the heat exchange capacity. Summary of the Invention

[0005] The main purpose of the present invention is to provide a heat exchanger assembly and an air conditioner to solve the problem of uneven air intake of V-shaped heat exchangers in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a heat exchanger assembly is provided, comprising: a heat exchanger, arranged between an air inlet and an air outlet; a plurality of air guide baffles, wherein the plurality of air guide baffles are located on the windward side of the heat exchanger close to the heat exchanger; wherein the direction from the air inlet to the air outlet is the air inlet direction, and the heat exchanger is divided into a first heat exchange segment and a second heat exchange segment along the air inlet direction, and a projection length of a projection of the first heat exchange segment on a projection plane parallel to the air inlet direction is less than or equal to a projection length of a projection of the second heat exchange segment on the projection plane; and the plurality of air guide baffles are spaced apart from the heat exchanger.

[0007] Furthermore, the plurality of air guide baffles include a third air guide baffle, and a projection of the third air guide baffle on the heat exchanger is located at one end of the first heat exchange segment for connection with the second heat exchange segment.

[0008] Furthermore, the angle between the plane where any one of the multiple air guide baffles is located and the heat exchanger is greater than or equal to 20°; and / or the angle between the plane where any one of the multiple air guide baffles is located and the heat exchanger is less than or equal to 45°.

[0009] Furthermore, the thickness of any one of the plurality of air guide baffles is 2 mm to 4 mm.

[0010] Furthermore, each air guide baffle includes a first side surface and a second side surface that are arranged opposite to each other, and the first side surface is arranged closer to the heat exchanger relative to the second side surface; the distance between the first side surface and the second side surface is the air guide length of the air guide baffle; wherein, the air guide lengths of multiple air guide baffles are equal.

[0011] Furthermore, the projected length of the heat exchanger on the vertical plane is a first projected length; the ratio of the air guide length to the first projected length is greater than or equal to one thirty; and / or the ratio of the air guide length to the first projected length is less than or equal to one tenth.

[0012] Furthermore, the multiple air guide baffles include a first air guide baffle, a second air guide baffle and a third air guide baffle arranged in sequence along the air inlet direction; along the direction perpendicular to the air inlet direction, the minimum distance between the first air guide baffle and the heat exchanger is the first horizontal projection length; along the direction perpendicular to the air inlet direction, the minimum distance between the second air guide baffle and the heat exchanger is the second horizontal projection length; along the direction perpendicular to the air inlet direction, the minimum distance between the third air guide baffle and the heat exchanger is the third horizontal projection length; the ratio between the first horizontal projection length and the air guide length is 1:2; and / or the ratio between the second horizontal projection length and the air guide length is 1:1.5; and / or the ratio between the third horizontal projection length and the air guide length is 1:1.

[0013] Furthermore, the end of the heat exchanger close to the air inlet is the first heat exchange end; the multiple air guide baffles include a first air guide baffle, a second air guide baffle and a third air guide baffle arranged in sequence along the air inlet direction; the end of the first air guide baffle close to the heat exchanger is the first free end; the end of the second air guide baffle close to the heat exchanger is the second free end; the end of the third air guide baffle close to the heat exchanger is the third free end; the length of the vertical distance from the first free end to the horizontal plane where the lowest end of the first heat exchange end is located is the first vertical projection length; the length of the vertical distance from the second free end to the horizontal plane where the lowest end of the first heat exchange end is located is the second vertical projection length; the length of the vertical distance from the third free end to the horizontal plane where the lowest end of the first heat exchange end is located is the third vertical projection length; wherein, the ratio of the first vertical projection length, the second vertical projection length and the third vertical projection length is 2:3:4.

[0014] Furthermore, a projection length of the heat exchanger on a vertical plane is a first projection length; and a ratio between the third vertical projection length and the first projection length is 1:2.

[0015] Furthermore, the heat exchanger includes multiple heat exchange plates, the multiple air guide baffles form a group of air guide baffle assemblies, the heat exchanger assembly includes multiple groups of air guide baffle assemblies, and each heat exchange plate is provided with at least one group of air guide baffle assemblies.

[0016] Furthermore, there are two heat exchange plates, one ends of the two heat exchange plates are connected to each other to form a V-shaped structure, the V-shaped structure has a closed end and an open end, and the closed end and the open end are distributed in sequence along the air inlet direction.

[0017] Furthermore, the two heat exchange plates are symmetrically arranged relative to a predetermined vertical plane.

[0018] Furthermore, the heat exchanger assembly also includes: a heat exchanger bracket, each air guide baffle is installed on the windward side of the heat exchanger through the heat exchanger bracket; wherein each air guide baffle is connected to the corresponding heat exchanger bracket through a fastener.

[0019] Furthermore, each wind deflector includes a baffle body and a fixing plate arranged on the baffle body. The baffle body and the fixing plate are arranged at a predetermined angle, and a fastening hole for a fastener to pass through is provided on the fixing plate.

[0020] Furthermore, the baffle body is strip-shaped, and fixing plates are provided at both ends of the baffle body. The heat exchanger bracket includes a first bracket and a second bracket arranged opposite to each other, and the fixing plates at both ends of the baffle body are respectively connected to the first bracket and the second bracket.

[0021] According to another aspect of the present invention, an air conditioner is provided, comprising a casing and a heat exchanger assembly disposed in the casing, wherein the heat exchanger assembly is the above-mentioned heat exchanger assembly.

[0022] By applying the technical solution of the present invention, a plurality of wind guide baffles are arranged on the windward surface of the heat exchanger, and the plurality of wind guide baffles are concentratedly arranged on the first heat exchange section close to the air inlet. The direction of the airflow blown from the air outlet to the heat exchanger is changed by the wind guide baffles, thereby avoiding the problem in the prior art that more air flows through the upper part of the heat exchanger than through the lower part thereof, increasing the air intake volume of the first heat exchange section of the heat exchanger, making the airflow pass through the heat exchanger evenly, improving the air intake uniformity of the heat exchanger, and improving the heat exchange efficiency.

[0023] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 A schematic structural diagram of an embodiment of a heat exchanger assembly according to the present invention is shown;

[0026] Figure 2 A schematic structural diagram of another embodiment of a heat exchanger assembly according to the present invention is shown;

[0027] Figure 3 Shown Figure 2 Schematic diagram of gas flow when the heat exchanger assembly is in working state;

[0028] Figure 4 A schematic structural diagram of the air guide baffle in the heat exchanger assembly of the present invention is shown;

[0029] Figure 5 shows a schematic structural diagram of an air conditioner according to the present invention; and

[0030] Figure 6 A structural schematic diagram of an air conditioner according to the present invention is shown.

[0031] The above drawings include the following reference numerals:

[0032] 100. Heat exchanger; 110. First heat exchange section; 120. Second heat exchange section; 130. First heat exchange end; 140. Heat exchange plate; 150. Closed end; 200. Air inlet; 310. First air guide baffle; 320. Second air guide baffle; 330. Third air guide baffle; 340. First side; 350. Second side; 311. First free end; 321. Second free end; 331. Third free end; 410. Baffle body; 420. Fixing plate; 430. First bracket; 440. Second bracket; 500. Casing; 600. Water tray. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] See also Figures 1 to 6 As shown, the present invention provides a heat exchanger assembly, which includes a heat exchanger 100 and a plurality of air guide baffles. The heat exchanger 100 is disposed between an air inlet 200 and an air outlet, and the plurality of air guide baffles are located on the windward side of the heat exchanger 100, close to the heat exchanger 100. The direction from the air inlet 200 to the air outlet is the air inlet direction. The heat exchanger 100 is divided into a first heat exchange section 110 and a second heat exchange section 120 along the air inlet direction. The projected length of the first heat exchange section 110 on a projection plane parallel to the air inlet direction is less than or equal to the projected length of the second heat exchange section 120 on the projection plane. The plurality of air guide baffles are spaced apart from the heat exchanger 100.

[0035] The heat exchanger assembly of the present invention has multiple air guide baffles installed on the first heat exchange section 110 near the air inlet 200. Thus, as the heat exchange airflow flows from the air inlet 200 toward the heat exchanger 100, it is blocked by the air guide baffles, changing the direction of the airflow, thereby allowing the heat exchange airflow to pass more evenly across the surface of the heat exchanger 100. Thus, by using the air guide baffles to change the direction of the airflow from the air inlet 200 toward the heat exchanger 100, the problem of excess airflow passing through the upper portion of the heat exchanger 100 compared to the lower portion in the prior art is avoided. This increases the air intake volume of the first heat exchange section 110 of the heat exchanger 100, ensuring uniform airflow through the heat exchanger 100, improving the air intake uniformity of the heat exchanger 100 and the heat exchange efficiency, thereby resolving the problem of uneven air intake in the V-shaped heat exchanger 100 in the prior art.

[0036] Figure 1 A schematic structural diagram of an embodiment of a heat exchanger assembly according to the present invention is shown. Figure 2 FIG2 shows a structural schematic diagram of another embodiment of a heat exchanger assembly according to the present invention. Figure 3 Shown Figure 2 Schematic diagram of gas flow when the heat exchanger assembly is in working state. Figure 1 、 Figure 2 and Figure 3 The multiple air guide baffles include a third air guide baffle 330. The projection of the third air guide baffle 330 on the heat exchanger 100 is located at one end of the first heat exchange segment 110 for connecting with the second heat exchange segment 120, thereby increasing the air intake volume of the first heat exchange segment 110 of the heat exchanger 100.

[0037] See also Figure 1 , Figure 1 The angle α in is the angle between the plane on which the air guide baffles are located and the heat exchanger 100. The angle between the plane on which any one of the multiple air guide baffles is located and the heat exchanger 100 is greater than or equal to 20°. In other words, the angle α is greater than or equal to 20°. Alternatively, the angle between the plane on which any one of the multiple air guide baffles is located and the heat exchanger 100 is less than or equal to 45°. In other words, the angle α is less than or equal to 45°.

[0038] During operation, if the angle α is too large, the air guide baffle cannot guide the heat exchange airflow to the surface of the heat exchanger 100; if the angle α is too small, most of the heat exchange airflow will easily flow directly over the air guide baffle to the second heat exchange section 120. Therefore, in some embodiments, the angle between the plane where any one of the multiple air guide baffles is located and the heat exchanger 100 is greater than or equal to 20°, and the angle between the plane where any one of the multiple air guide baffles is located and the heat exchanger 100 is less than or equal to 45°. Figure 1That is, in some embodiments, the angle α is greater than or equal to 20° and less than or equal to 45°. In this embodiment, the angle α is greater than or equal to 20° and less than or equal to 45°, thereby improving the uniformity of the air entering the heat exchanger 100.

[0039] In some embodiments, the angles between any one of the plurality of air guide baffles and the heat exchanger 100 are the same. In other embodiments, the angles between any two of the plurality of air guide baffles and the heat exchanger 100 are different.

[0040] See also Figure 1 The thickness of any one of the plurality of air guide baffles is 2 mm to 4 mm. If the thickness of the air guide baffle is too thick, it will affect the usable area of ​​the heat exchanger 100 and waste materials. Therefore, under the condition of meeting the strength of the material, the thickness of the air guide baffle is 2 mm to 4 mm. Figure 1 , Figure 1 Where b is the thickness of the air deflector, i.e., the value of b ranges from 2 mm to 4 mm. In the first embodiment, the thickness of the air deflector is uniform across the entire surface. In the second embodiment, the thickness of the air deflector varies across the entire surface, with the thickest portion having a thickness of 2 mm to 4 mm.

[0041] In some embodiments, the thickness of any one of the plurality of air guide baffles is 3 mm, that is, the value of b is 3 mm.

[0042] See also Figure 1 Each air guide baffle includes a first side surface 340 and a second side surface 350 that are oppositely disposed. The first side surface 340 is disposed closer to the heat exchanger 100 than the second side surface 350. The distance between the first side surface 340 and the second side surface 350 is the air guide length of the air guide baffle. The air guide lengths of multiple air guide baffles are equal, thereby improving the uniformity of the air entering the heat exchanger 100. Figure 1 , Figure 1 The h in the equation is the air guide length of each air guide baffle.

[0043] See also Figure 1 , Figure 1 D in the equation is the first projected length. The projected length of the heat exchanger 100 on the vertical plane is the first projected length, and the ratio of the air guide length to the first projected length is greater than or equal to one-thirtieth. In other words, the ratio between h and D is greater than or equal to one-thirtieth.

[0044] Alternatively, the ratio of the wind guide length to the first projected length is less than or equal to 1 / 10. That is, the ratio of h to D is less than or equal to 1 / 10.

[0045] During operation, the air guide length of the air guide baffle has a certain impact on the airflow. If the air guide length of the air guide baffle is too long, the air volume will be lost; if the air guide length of the air guide baffle is too short, the airflow guiding effect will be reduced. Therefore, in some embodiments, the ratio of the air guide length to the first projected length is greater than or equal to one-thirtieth, and the ratio of the air guide length to the first projected length is less than or equal to one-tenth. Figure 1 That is, in some embodiments, the ratio of h to D is greater than or equal to one-thirtieth and less than or equal to one-tenth, thereby improving the uniformity of the air entering the heat exchanger 100.

[0046] In some embodiments, the ratio of the air guide length to the first projected length is 1 / 20. That is, in some embodiments, the ratio of h to D is 1 / 20, which can better improve the uniformity of the air entering the heat exchanger 100.

[0047] See also Figure 2 The multiple air guide baffles include a first air guide baffle 310, a second air guide baffle 320, and a third air guide baffle 330, which are sequentially arranged along the air inlet direction. In a direction perpendicular to the air inlet direction, the minimum distance between the first air guide baffle 310 and the heat exchanger 100 is a first horizontal projection length; in a direction perpendicular to the air inlet direction, the minimum distance between the second air guide baffle 320 and the heat exchanger 100 is a second horizontal projection length; and in a direction perpendicular to the air inlet direction, the minimum distance between the third air guide baffle 330 and the heat exchanger 100 is a third horizontal projection length.

[0048] See also Figure 1 , Figure 1 In the equation, c1 is the first horizontal projection length, c2 is the second horizontal projection length, c3 is the third horizontal projection length, and h is the air guide length of each air guide baffle. The ratio of the first horizontal projection length to the air guide length is 1:2. That is, the ratio of c1 to h is 1:2. Alternatively, the ratio of the second horizontal projection length to the air guide length is 1:1.5. That is, the ratio of c2 to h is 1:1.5. Alternatively, the ratio of the third horizontal projection length to the air guide length is 1:1. That is, the ratio of c3 to h is 1:1. This improves the uniformity of the air entering the heat exchanger 100.

[0049] During operation, the air guide lengths of air guide baffles at different locations have different effects on the airflow. If the horizontal distances between each air guide baffle and the heat exchanger 100 are the same, the heat exchange airflow is easily affected by the air guide baffles near the air inlet 200, resulting in less heat exchange airflow between adjacent air guide baffles and air guide baffles far from the air inlet 200, which in turn causes uneven airflow into the heat exchanger 100. Therefore, in some embodiments, the ratio of the first horizontal projection length to the air guide length is 1:2, the ratio of the second horizontal projection length to the air guide length is 1:1.5, and the ratio of the third horizontal projection length to the air guide length is 1:1. See Figure 1 , that is, in some embodiments, the ratio between c1 and h is 1:2, the ratio between c2 and h is 1:1.5, and the ratio between c3 and h is 1:1.

[0050] The end of the heat exchanger 100 near the air inlet 200 is the first heat exchange end 130. The multiple air guide baffles include a first air guide baffle 310, a second air guide baffle 320, and a third air guide baffle 330, arranged sequentially along the air inlet direction. The end of the first air guide baffle 310 near the heat exchanger 100 is a first free end 311, the end of the second air guide baffle 320 near the heat exchanger 100 is a second free end 321, and the end of the third air guide baffle 330 near the heat exchanger 100 is a third free end 331. The vertical distance from the first free end 311 to the horizontal plane containing the lowest end of the first heat exchange end 130 is a first vertical projection length, the vertical distance from the second free end 321 to the horizontal plane containing the lowest end of the first heat exchange end 130 is a second vertical projection length, and the vertical distance from the third free end 331 to the horizontal plane containing the lowest end of the first heat exchange end 130 is a third vertical projection length.

[0051] See also Figure 1 , Figure 1 Here, H1 is the length of the first vertical projection, H2 is the length of the second vertical projection, and H3 is the length of the third vertical projection. The ratio of the first vertical projection length, the second vertical projection length, and the third vertical projection length is 2:3:4. In other words, the ratio of H1, H2, and H3 is 2:3:4.

[0052] See also Figure 1 , the projected length of the heat exchanger 100 on the vertical plane is the first projected length, Figure 1 D in the figure is the first projection length. In some embodiments, the ratio between the third vertical projection length and the first projection length is 1:2. That is, the ratio between H3 and D is 1:2.

[0053] See also Figure 2The heat exchanger 100 includes multiple heat exchange plates 140. The multiple air guide baffles form a set of air guide baffle assemblies. The heat exchanger assembly includes multiple sets of air guide baffle assemblies, with each heat exchange plate 140 being provided with at least one set of air guide baffle assemblies. In some embodiments, a set of air guide baffle assemblies includes 2 to 5, which not only ensures more uniform airflow into the heat exchanger 100 but also avoids excessive air loss caused by excessive air guide baffles.

[0054] See also Figure 2 The plurality of heat exchange plates 140 are two in number, and one end of the two heat exchange plates 140 is connected to form a V-shaped structure. The V-shaped structure has a closed end 150 and an open end, and the closed end 150 and the open end are sequentially arranged along the air inlet direction. In other words, the closed end 150 is the end of the V-shaped heat exchanger 100 closest to the air inlet 200.

[0055] See also Figure 2 The two heat exchange plates 140 are symmetrically arranged relative to a predetermined vertical plane, so that the air entering the heat exchanger 100 is more uniform.

[0056] Figure 4 A schematic structural diagram of the air guide baffle in the heat exchanger assembly of the present invention is shown. Figure 5 The schematic diagram of the structure of an air conditioner according to the present invention is shown. In some embodiments, the air conditioner includes an air outlet component and a fan component. The heat exchange airflow from the air outlet component enters the areas on both sides of the V-shaped heat exchanger 100 through the air inlet 200, then passes through the heat exchanger 100 for heat exchange, and is then sent out of the air conditioner.

[0057] In some embodiments, the air conditioner further includes a water receiving pan 600. The water receiving pan 600 is located below the closed end 150 and is used to receive condensed water.

[0058] See also Figure 4 and Figure 5 The heat exchanger assembly further includes a heat exchanger bracket. Each air guide baffle is mounted on the windward side of the heat exchanger 100 via the heat exchanger bracket. Each air guide baffle is connected to the corresponding heat exchanger bracket via a fastener. In some embodiments, the fastener is a screw or bolt.

[0059] Each air deflector includes a baffle body 410 and a fixing plate 420 mounted on the baffle body 410. The baffle body 410 and the fixing plate 420 are arranged at a predetermined angle. The fixing plate 420 is provided with fastening holes for fasteners to pass through. The baffle body 410 is strip-shaped, with fixing plates 420 mounted at both ends. The heat exchanger bracket includes a first bracket 430 and a second bracket 440 positioned opposite each other. The fixing plates 420 at both ends of the baffle body 410 are connected to the first bracket 430 and the second bracket 440, respectively. The fastening holes and the fasteners securely connect the fixing plates 420 to the first bracket 430 and the second bracket 440, ensuring a secure connection between the air deflector.

[0060] See also Figure 5 The air conditioner according to the embodiment of the present invention includes a casing 500 and a heat exchanger assembly disposed in the casing 500. The heat exchanger assembly is the heat exchanger assembly of the above embodiment.

[0061] Figure 6 The structure diagram of the air conditioner according to the present invention is shown. In some embodiments, the air guide baffle is a flat plate. In other embodiments, the air guide baffle is a curved plate. In other embodiments, the air guide baffle is a guide plate of other shapes.

[0062] In some embodiments, the wind deflector is made of plastic to save costs. In other embodiments, the wind deflector is made of metal or other materials.

[0063] Throughout this specification, references to "some embodiments" or "other embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined as appropriate in any one or more embodiments or examples.

[0064] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0065] A plurality of air guide baffles are centrally arranged on the first heat exchange section 110 near the air inlet 200. The air guide baffles change the direction of the airflow from the air inlet 200 to the heat exchanger 100, thereby avoiding the problem in the prior art that more air flows through the upper part of the heat exchanger 100 than through the lower part thereof, increasing the air intake volume of the first heat exchange section 110 of the heat exchanger 100, making the airflow pass through the heat exchanger 100 evenly, improving the air intake uniformity of the heat exchanger 100, improving the heat exchange efficiency, and thus solving the problem of uneven air intake of the V-shaped heat exchanger 100 in the prior art.

[0066] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A heat exchanger assembly, characterized in that: include: A heat exchanger (100) is provided between the air inlet (200) and the air outlet; a plurality of wind guide baffles, the plurality of wind guide baffles being located on a side of the heat exchanger (100) close to a windward surface of the heat exchanger (100); The direction from the air inlet (200) to the air outlet is the air inlet direction, the heat exchanger (100) is divided into a first heat exchange segment (110) and a second heat exchange segment (120) along the air inlet direction, and the projection length of the projection of the first heat exchange segment (110) on a projection plane parallel to the air inlet direction is less than or equal to the projection length of the projection of the second heat exchange segment (120) on the projection plane; The plurality of air guide baffles are spaced apart from the heat exchanger (100); The included angle between the plane where any one of the plurality of air guide baffles is located and the heat exchanger (100) is greater than or equal to 20°; and / or the included angle between the plane where any one of the plurality of air guide baffles is located and the heat exchanger (100) is less than or equal to 45°; Each of the wind guide baffles comprises a first side surface (340) and a second side surface (350) that are arranged opposite to each other, the first side surface (340) being arranged closer to the heat exchanger (100) relative to the second side surface (350); the distance between the first side surface (340) and the second side surface (350) being the wind guide length of the wind guide baffle; the wind guide lengths of the plurality of wind guide baffles being equal; the projected length of the heat exchanger (100) on a vertical plane being the first projected length; the ratio of the wind guide length to the first projected length being greater than or equal to one-thirtieth; and / or the ratio of the wind guide length to the first projected length being less than or equal to one-tenth; The plurality of wind guide baffles include a first wind guide baffle (310), a second wind guide baffle (320), and a third wind guide baffle (330) arranged in sequence along the wind inlet direction; along a direction perpendicular to the wind inlet direction, the minimum distance between the first wind guide baffle (310) and the heat exchanger (100) is a first horizontal projection length; along a direction perpendicular to the wind inlet direction, the minimum distance between the second wind guide baffle (320) and the heat exchanger (100) is a second horizontal projection length; along a direction perpendicular to the wind inlet direction, the minimum distance between the third wind guide baffle (330) and the heat exchanger (100) is a third horizontal projection length; a ratio between the first horizontal projection length and the wind guide length is 1:2; and / or a ratio between the second horizontal projection length and the wind guide length is 1:1.5; and / or a ratio between the third horizontal projection length and the wind guide length is 1:1; The end of the heat exchanger (100) close to the air inlet (200) is a first heat exchange end (130); the multiple air guide baffles include a first air guide baffle (310), a second air guide baffle (320), and a third air guide baffle (330) arranged in sequence along the air inlet direction; the end of the first air guide baffle (310) close to the heat exchanger (100) is a first free end (311); the end of the second air guide baffle (320) close to the heat exchanger (100) is a second free end (321); the end of the third air guide baffle (330) close to the heat exchanger (100) is a third free end (331); the first free end (3 11) The length of the vertical distance from the horizontal plane where the lowest end of the first heat exchange end (130) is located is the first vertical projection length; the length of the vertical distance from the second free end (321) to the horizontal plane where the lowest end of the first heat exchange end (130) is located is the second vertical projection length; the length of the vertical distance from the third free end (331) to the horizontal plane where the lowest end of the first heat exchange end (130) is located is the third vertical projection length; wherein the ratio of the first vertical projection length, the second vertical projection length and the third vertical projection length is 2:3:4; and the ratio of the third vertical projection length to the first projection length is 1:2; The plurality of air guide baffles are arranged on the first heat exchange section (110) close to the air inlet (200).

2. The heat exchanger assembly according to claim 1, characterized in that The plurality of air guide baffles include a third air guide baffle (330), wherein a projection of the third air guide baffle (330) on the heat exchanger (100) is located at an end of the first heat exchange section (110) for connection with the second heat exchange section (120).

3. The heat exchanger assembly according to claim 1, wherein: The thickness of any one of the plurality of air guide baffles is 2 mm to 4 mm.

4. The heat exchanger assembly according to claim 1, wherein: The heat exchanger (100) comprises a plurality of heat exchange plates (140), the plurality of air guide baffles forming a group of air guide baffle assemblies, the heat exchanger assembly comprising a plurality of groups of air guide baffle assemblies, and each of the heat exchange plates (140) is provided with at least one group of air guide baffle assemblies.

5. The heat exchanger assembly according to claim 4, characterized in that There are two of the plurality of heat exchange plates (140), one end of the two heat exchange plates (140) are connected to each other to form a V-shaped structure, the V-shaped structure having a closed end (150) and an open end, the closed end (150) and the open end being distributed in sequence along the air inlet direction.

6. The heat exchanger assembly according to claim 5, characterized in that The two heat exchange plates (140) are symmetrically arranged relative to a predetermined vertical plane.

7. The heat exchanger assembly according to claim 1, wherein: The heat exchanger assembly further comprises: A heat exchanger bracket, each of the air guide baffles being mounted on a side of the windward surface of the heat exchanger (100) via the heat exchanger bracket; Wherein, each of the air guide baffles is connected to the corresponding heat exchanger bracket via fasteners.

8. The heat exchanger assembly according to claim 7, characterized in that Each of the air guide baffles comprises a baffle body (410) and a fixing plate (420) arranged on the baffle body (410); the baffle body (410) and the fixing plate (420) are arranged at a predetermined angle; and a fastening hole for the fastener to pass through is provided on the fixing plate (420).

9. The heat exchanger assembly according to claim 8, characterized in that The baffle body (410) is strip-shaped, and the fixing plates (420) are provided at both ends of the baffle body (410). The heat exchanger bracket comprises a first bracket (430) and a second bracket (440) that are arranged opposite to each other, and the fixing plates (420) at both ends of the baffle body (410) are connected to the first bracket (430) and the second bracket (440) respectively.

10. An air conditioner comprising a casing (500) and a heat exchanger assembly arranged in the casing (500), characterized in that: The heat exchanger assembly is the heat exchanger assembly according to any one of claims 1 to 9.

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