Heat exchanger and air conditioning system

Abstract

The invention discloses a heat exchanger and an air conditioning system.The heat exchanger comprises a first flow collecting piece, a second flow collecting piece and a plurality of heat exchange single bodies, the first flow collecting piece is provided with a first flow collecting cavity, the second flow collecting piece is provided with a second flow collecting cavity, and each heat exchange single body comprises a heat exchange single body and cooling fins; the cooling fins are arranged on the outer surface of the heat exchange single body and integrally formed with the heat exchange single body, the two ends of the heat exchange single body are connected with the first flow collecting piece and the second flow collecting piece respectively, the heat exchange single body is provided with a heat exchange channel, and the heat exchange channel communicates with the first flow collecting cavity and the second flow collecting cavity. According to the heat exchanger provided by the embodiment of the invention, the heat dissipation area can be increased by arranging the cooling fins on the heat exchange monomer body, and the heat exchange monomer body and the cooling fins are integrally formed, so that the contact thermal resistance between the cooling fins and the heat exchange monomer body can be reduced, and the heat exchange capability and the heat exchange efficiency of the heat exchanger can be improved. In addition, the integrally-formed heat exchange monomer can simplify the production process and improve the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a heat exchanger and an air conditioning system. Background Art

[0002] In the related technology, the heat exchangers of air conditioners mostly use copper tube aluminum fin heat exchangers and microchannel heat exchangers. The copper tube aluminum fin heat exchanger uses copper tubes inserted into aluminum fins and then fixed by expanding the tubes. Therefore, the contact thermal resistance is large and the heat exchange efficiency is affected. Although the microchannel heat exchanger reduces the contact thermal resistance and improves the heat exchange efficiency to a certain extent, the heat exchange efficiency is still poor and needs to be further improved. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a heat exchanger, which can increase the heat dissipation area by arranging a heat sink on the heat exchange monomer body, and make the heat exchange monomer body and the heat sink integrally formed, which can reduce the contact thermal resistance between the heat sink and the heat exchange monomer body, thereby improving the heat exchange capacity and heat exchange efficiency of the heat exchange monomer, and further improving the heat exchange capacity and heat exchange efficiency of the heat exchanger. In addition, the integrally formed heat exchange monomer can simplify the production process and improve production efficiency.

[0004] The present invention also provides an air conditioning system having the heat exchanger.

[0005] According to the first aspect of the present invention, the heat exchanger comprises: a first collecting member and a second collecting member, the first collecting member having a first collecting cavity, the second collecting member having a second collecting cavity; a plurality of heat exchange units, the heat exchange units comprising a heat exchange unit body and a heat sink, the heat sink being arranged on the outer surface of the heat exchange unit body and being integrally formed with the heat exchange unit body, one end of the heat exchange unit body being connected to the first collecting member and the other end being connected to the second collecting member, the heat exchange unit body having a heat exchange channel, the heat exchange channel connecting the first collecting cavity and the second collecting cavity.

[0006] According to the heat exchanger of the embodiment of the present invention, by arranging a heat sink on the heat exchange monomer body, the heat dissipation area can be increased, and the heat exchange monomer body and the heat sink are integrally formed, which can reduce the contact thermal resistance between the heat sink and the heat exchange monomer body, thereby improving the heat exchange capacity and heat exchange efficiency of the heat exchange monomer, and further improving the heat exchange capacity and heat exchange efficiency of the heat exchanger. In addition, the integrally formed heat exchange monomer can simplify the production process and improve production efficiency.

[0007] According to some embodiments of the present invention, at least a portion of the heat sink is formed with a drainage portion, and an angle is formed between the drainage portion and a horizontal plane.

[0008] According to some embodiments of the present invention, an angle between the drainage portion and the horizontal plane is β, and a value range of β is 2° to 6°.

[0009] According to some embodiments of the present invention, the thickness of the heat sink is a, and the value range of a is 0.1 mm to 0.3 mm.

[0010] According to some embodiments of the present invention, a protruding height of the heat sink relative to the heat exchange unit body is H, and a value range of H is 1 mm to 3 mm.

[0011] According to some embodiments of the present invention, the heat exchange monomer body is provided with a plurality of heat sinks arranged at intervals along the extension direction of the heat exchange monomer body, and along the extension direction of the heat exchange monomer body, the spacing between two adjacent heat sinks on the same heat exchange monomer body is b, and the value range of b is 1.2 mm to 2 mm.

[0012] According to some embodiments of the present invention, the first current collecting member and the second current collecting member are arranged opposite to each other and spaced apart along a first direction, a plurality of the heat exchange units are arranged along a second direction, and air flow channels extending along a third direction are defined between adjacent heat exchange units, and the third direction, the second direction and the first direction intersect each other.

[0013] According to some embodiments of the present invention, the heat exchange monomer body extends along the first direction, and a plurality of heat sinks arranged at intervals along the first direction are provided on the heat exchange monomer body, the first direction is the up and down direction, and at least a portion of the heat sink is formed with a drainage portion, an angle is formed between the drainage portion and the horizontal plane, and an angle is formed between the drainage portion and the first direction.

[0014] According to some embodiments of the present invention, the entire heat sink is formed as the drainage portion, and the heat sink extends obliquely from top to bottom in the third direction.

[0015] According to some embodiments of the present invention, the heat sinks on adjacent sides of two adjacent heat exchange units have the same inclination direction.

[0016] According to some embodiments of the present invention, in the third direction and along the flow direction of the airflow, the heat sink extends obliquely from top to bottom.

[0017] According to some embodiments of the present invention, the heat exchange monomer body is in the shape of a flat plate, and the surface of the heat exchange monomer body in the thickness direction faces the airflow channel. The surface of the heat exchange monomer body in the thickness direction is the heat exchange surface, and the heat exchange surface includes a main heat exchange surface with a planar structure, and the heat sink is arranged on the main heat exchange surface.

[0018] According to some embodiments of the present invention, the heat sinks are provided on two opposite sides of the heat exchange monomer body along the second direction.

[0019] According to some embodiments of the present invention, the heat sinks on adjacent sides of two adjacent heat exchange units are arranged opposite to each other in the second direction.

[0020] According to some embodiments of the present invention, the heat sinks on adjacent sides of two adjacent heat exchange units are connected.

[0021] An air conditioning system according to an embodiment of a second aspect of the present invention comprises: a heat exchanger according to an embodiment of the first aspect of the present invention.

[0022] According to the air conditioning system of the embodiment of the present invention, by setting the above-mentioned heat exchanger, by setting a heat sink on the heat exchange monomer body, the heat dissipation area can be increased, and the heat exchange monomer body and the heat sink are integrally formed, which can reduce the contact thermal resistance between the heat sink and the heat exchange monomer body, thereby improving the heat exchange capacity and heat exchange efficiency of the heat exchange monomer, and further improving the heat exchange capacity and heat exchange efficiency of the heat exchanger. In addition, the integrally formed heat exchange monomer can simplify the production process and improve production efficiency.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a schematic diagram of a heat exchanger according to some embodiments of the present invention;

[0026] Figure 2 yes Figure 1 A local enlarged view at point A;

[0027] Figure 3 yes Figure 1 A schematic diagram of a heat exchange unit of a heat exchanger in FIG.

[0028] Figure 4 yes Figure 3 A local enlarged view at point B;

[0029] Figure 5 yes Figure 3 A schematic diagram of another perspective of the heat exchange unit in the embodiment;

[0030] Figure 6 yes Figure 5 A partial enlarged view at C;

[0031] Figure 7 yes Figure 3 A side view of a heat exchange unit in FIG.

[0032] Figure 8 is a schematic diagram of the working principle of an air conditioning system according to some embodiments of the present invention.

[0033] Reference numerals:

[0034] 100. Air conditioning system;

[0035] 10. heat exchanger; 11. first collector; 111. first collector cavity; 112. first connecting pipe; 113. first inlet and outlet; 12. second collector; 121. second collector cavity; 122. second connecting pipe; 123. second inlet and outlet; 13. heat exchange unit; 14. heat exchange unit body; 15. heat sink; 151. drainage part; 16. heat exchange channel; 17. air flow channel; 18. heat exchange surface; 181. main heat exchange surface; 19. groove; 191. end of groove;

[0036] 20. Outdoor heat exchanger; 21. Indoor heat exchanger; 22. Indoor fan; 23. Throttling component; 24. First sensor; 25. Second sensor; 26. Oil separator; 27. Gas-liquid separator; 28. First control valve; 29. ​​Second control valve;

[0037] 30. Compressor; 31. Exhaust port; 32. Return air port. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] A heat exchanger 10 according to an embodiment of the present invention will be described below with reference to the drawings.

[0040] Reference Figure 1-Figure 7The heat exchanger 10 according to the first embodiment of the present invention includes a first current collecting member 11, a second current collecting member 12 and a plurality of heat exchange monomers 13. The first current collecting member 11 has a first current collecting chamber 111, and the second current collecting member 12 has a second current collecting chamber 121. One end of the heat exchange monomer body 14 is connected to the first current collecting member 11, and the other end of the heat exchange monomer body 14 is connected to the second current collecting member 12. The heat exchange monomer body 14 has a heat exchange channel 16, and the heat exchange channel 16 connects the first current collecting chamber 111 and the second current collecting chamber 121. The first current collecting member 11 may also include a first connecting pipe 112, and the first connecting pipe 112 has a first inlet and outlet 113. The second current collecting member 12 may also include a second connecting pipe 122, and the second connecting pipe 122 has a second inlet and outlet 123. The first inlet and outlet 113 is connected to the first current collecting chamber 111, and the second inlet and outlet 123 is connected to the second current collecting chamber 121.

[0041] The heat exchange medium (e.g., refrigerant) can flow into the first connecting tube 112 through the first inlet and outlet 113, and then flow into the first manifold 111 through the first connecting tube 112; the heat exchange medium in the first manifold 111 can also flow into the first connecting tube 112, and then flow out through the first inlet and outlet 113. The heat exchange medium can flow into the second connecting tube 122 through the second inlet and outlet 123, and then flow into the second manifold 121 through the second connecting tube 122; the heat exchange medium in the second manifold 121 can also flow into the second connecting tube 122, and then flow out through the second inlet and outlet 123.

[0042] The heat exchange channel 16 of the heat exchange monomer body 14 connects the first collecting cavity 111 and the second collecting cavity 121. The heat exchange medium in the first collecting cavity 111 can flow into the second collecting cavity 121 through the heat exchange channel 16 of at least part of the heat exchange monomer 13, and the heat exchange medium in the second collecting cavity 121 can also flow into the first collecting cavity 111 through the heat exchange channel 16 of at least part of the heat exchange monomer 13.

[0043] The heat exchange unit 13 includes a heat exchange unit body 14 and a heat sink 15, and the heat sink 15 is arranged on the outer surface of the heat exchange unit body 14. The heat dissipation area can be increased, so that the heat exchange efficiency and heat exchange capacity of the heat exchange unit 13 can be improved.

[0044] Furthermore, the heat sink 15 is integrally formed with the corresponding heat exchange monomer body 14. By integrally forming the heat sink 15 with the corresponding heat exchange monomer body 14, the connection process of the heat exchange monomer body 14 and the heat sink 15 is omitted, the number of parts is reduced, the production efficiency is improved, the production process can be simplified, and the production efficiency can be improved. At the same time, the overall structural strength of the heat exchange monomer 13 can be improved.

[0045] In addition, in the related art, fins are provided on the heat exchange monomer 13, and contact thermal resistance is generated between the heat exchange monomer 13 and the fins. The present invention integrates the heat exchange monomer 13 and the fins, thereby avoiding or reducing the contact thermal resistance between the heat exchange tube and the fins, and no contact thermal resistance is generated on the heat exchange monomer 13, thereby increasing the heat exchange coefficient of the heat exchange monomer 13, thereby enhancing the heat exchange capacity of the heat exchanger 10.

[0046] Optionally, the heat exchange monomer body 14 and the heat sink 15 can be integrally cast.

[0047] Optionally, after the heat exchanger blank 13 is processed, the heat exchanger 13 can also be processed into a heat sink 15 on the surface of the heat exchanger blank by a scraping machine, that is, the heat exchanger 15 is scraped out on the surface of the heat exchanger blank 13. For example, the heat exchanger 15 can be scraped out on the planar outer surface of the wall in the thickness direction of the heat exchanger blank 13. The wall in the thickness direction of the heat exchanger blank 13 can have a sufficient thickness for scraping out the heat exchanger 15. After the heat exchanger 15 is scraped out, a groove 19 can be formed on the wall in the thickness direction of the heat exchanger blank 13. When the heat exchanger 13 is placed vertically, the groove 19 can be located above or below the corresponding scraped heat sink 15. In some examples, the groove end 191 of the groove 19 away from the corresponding shoveled heat sink 15 is smoothly transitioned to the planar outer surface of the heat exchange unit 13, for example, the transition can be through a slope or arc surface to avoid the accumulation of condensed water in the groove 19. In other examples, the groove end 191 of the groove 19 away from the corresponding shoveled heat sink 15 is connected to the root of another adjacent heat sink 15 connected to the heat exchange unit body 14.

[0048] It should be noted that the term “plurality” in the present invention refers to two or more than two.

[0049] According to the heat exchanger 10 of the embodiment of the present invention, by providing the heat exchange monomer body 14 and the heat sink 15, and the heat exchange monomer body 14 and the heat sink 15 are integrally formed, the influence of contact thermal resistance on the heat exchange capacity of the heat exchange monomer 13 can be avoided, the heat exchange capacity of the heat exchange monomer 13 is improved, and the heat exchange capacity of the heat exchanger 10 is further improved. In addition, the integrally formed heat exchange monomer 13 can simplify the production process and improve production efficiency.

[0050] Reference Figure 3-Figure 6 According to some embodiments of the present invention, at least part of the heat sink 15 is formed with a drainage portion 151, that is, part of the heat sink 15 may be formed with the drainage portion 151, or the entire heat sink 15 may be formed as the drainage portion 151. The drainage portion 151 has an angle with the horizontal plane, and can play a guiding role, for example, it can guide the water and airflow on the outer surface of the heat exchange monomer body 14, thereby improving the drainage capacity and defrosting capacity of the heat exchange monomer 13 to a certain extent.

[0051] Reference Figure 3-Figure 6 According to some embodiments of the present invention, the angle between the drainage portion 151 and the horizontal plane is β, and the value range of β is 2° to 6°. For example, the angle β between the drainage portion 151 and the horizontal plane can be 2°, 3°, 4°, 5°, 6°, etc. If the angle β between the drainage portion 151 and the horizontal plane is greater than 6°, the angle between the drainage portion 151 and the horizontal plane will be too large, resulting in a large wind resistance of the drainage portion 151, affecting the effect of convective heat transfer of the heat exchange unit 13, and further affecting the heat exchange capacity of the heat exchanger 10; if the angle β between the drainage portion 151 and the horizontal plane is less than 2°, the angle between the drainage portion 151 and the horizontal plane will be too small, thereby affecting the water diversion effect of the drainage portion 151, which is not conducive to the drainage of the heat exchange unit 13.

[0052] By setting the angle β between the drainage portion 151 and the horizontal plane to 2°~6°, the angle between the drainage portion 151 and the horizontal plane is more appropriate, so that the wind resistance of the drainage portion 151 can be smaller and the drainage effect can be better, thereby improving the heat exchange capacity of the heat exchanger 10.

[0053] Reference Figure 3-Figure 6 According to some embodiments of the present invention, the thickness of the heat sink 15 is a, and the value range of a is 0.1mm to 0.3mm. For example, the thickness a of the heat sink 15 can be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, etc. If the thickness a of the heat sink 15 is greater than 0.3mm, the thickness of the heat sink 15 will be larger, resulting in a larger wind resistance of the heat sink 15, affecting the convective heat transfer effect of the heat sink unit, and further affecting the heat exchange capacity of the heat exchanger 10; if the thickness a of the heat sink 15 is less than 0.1mm, the thickness of the heat sink 15 will be smaller, resulting in greater difficulty in processing the heat sink 15. At the same time, the smaller thickness of the heat sink 15 will result in a lower structural strength of the heat sink 15, which is prone to deformation.

[0054] By setting the thickness a of the heat sink 15 to 0.1 mm to 0.3 mm, the thickness of the heat sink 15 is relatively appropriate, which can reduce the wind resistance of the drainage portion 151, thereby improving the heat exchange capacity of the heat exchanger 10. At the same time, it can facilitate the processing of the heat sink 15 and ensure the structural strength of the heat sink 15.

[0055] Reference Figure 3-Figure 6According to some embodiments of the present invention, the protruding height of the heat sink 15 relative to the heat exchange monomer body 14 is H, and the value range of H is 1mm to 3mm. For example, the protruding height H of the heat sink 15 relative to the heat exchange monomer body 14 can be 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc. If the protruding height H of the heat sink 15 relative to the heat exchange monomer body 14 is greater than 3mm, the protruding height of the heat sink 15 relative to the heat exchange monomer body 14 will be higher, which will make the processing of the heat sink 15 more difficult; if the protruding height H of the heat sink 15 relative to the heat exchange monomer body 14 is less than 1mm, the protruding height of the heat sink 15 relative to the heat exchange monomer body 14 will be lower, which will make the heat sink 15 smaller, and the heat sink 15 will have a smaller improvement on the heat exchange effect of the heat exchange monomer body 14.

[0056] By setting the protruding height H of the heat sink 15 relative to the heat exchange monomer body 14 to 1mm~3mm, the protruding height of the heat sink 15 relative to the heat exchange monomer body 14 is relatively moderate, which can facilitate the processing and manufacturing of the heat sink 15. At the same time, the heat exchange effect of the heat sink 15 on the heat exchange monomer body 14 can be greatly improved.

[0057] Reference Figure 3-Figure 6 According to some embodiments of the present invention, a plurality of heat sinks 15 are arranged at intervals along the extension direction of the heat exchange monomer body 14 on the heat exchange monomer body 14. Along the extension direction of the heat exchange monomer body 14, the distance between two adjacent heat sinks 15 on the same heat exchange monomer body 14 is b, and the value range of b is 1.2 mm to 2 mm. For example, the distance b between two adjacent heat sinks 15 on the same heat exchange monomer body 14 can be 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm, 2 mm, etc. If the spacing b between two adjacent heat sinks 15 on the same heat exchange monomer body 14 is greater than 2 mm, the spacing between two adjacent heat sinks 15 on the same heat exchange monomer body 14 will be larger, resulting in a smaller number of heat sinks 15 on the same heat exchange monomer 13, so that the heat exchange effect of the heat exchanger body 14 is improved less by the heat sink 15; if the spacing b between two adjacent heat sinks 15 on the same heat exchange monomer body 14 is less than 2 mm, the spacing between two adjacent heat sinks 15 on the same heat exchange monomer body 14 will be smaller, resulting in a larger number of heat sinks 15 on the same heat exchange monomer 13, increasing the processing difficulty. At the same time, the spacing between two adjacent heat sinks 15 on the same heat exchange monomer body 14 is smaller, which will cause the wind resistance caused by the heat sink 15 to be larger, affecting the convective heat exchange effect of the heat exchanger, and further affecting the heat exchange capacity of the heat exchanger 10.

[0058] By setting the distance b between two adjacent heat sinks 15 on the same heat exchange monomer body 14 to 1.2 mm to 2 mm, the distance between two adjacent heat sinks 15 on the same heat exchange monomer body 14 is more appropriate, which can reduce the difficulty of processing and manufacturing the heat sink 15. At the same time, the wind resistance of the heat sink 15 can be reduced, thereby improving the heat exchange capacity of the heat exchanger 10.

[0059] Reference Figure 1-Figure 2 According to some embodiments of the present invention, the first current collecting member 11 and the second current collecting member 12 are arranged opposite to each other and spaced apart along a first direction (refer to direction e1 in the accompanying drawings), a plurality of heat exchange units 13 are arranged along a second direction (refer to direction e2 in the accompanying drawings), and an air flow channel 17 extending along a third direction (refer to direction e3 in the accompanying drawings) is defined between adjacent heat exchange units 13, and the third direction, the second direction and the first direction intersect with each other, for example, the first direction, the second direction and the third direction are perpendicular to each other.

[0060] By setting up the airflow channel 17, the airflow can flow through the airflow channel 17 on both sides of the thickness direction of the heat exchange unit 13. In the process of the airflow flowing through the airflow channel 17, the airflow can exchange heat with the refrigerant in the heat exchange channel 16, thereby adjusting the airflow temperature and realizing the heat exchange function.

[0061] Reference Figure 3-Figure 6 According to some embodiments of the present invention, the heat exchange monomer body 14 extends along the first direction. The heat exchange monomer body 14 is provided with a plurality of heat sinks 15 arranged at intervals along the first direction, the first direction is the up-down direction, at least a portion of the heat sink 15 is formed with a drainage portion 151, and an angle is formed between the drainage portion 151 and the horizontal plane and between the drainage portion 151 and the first direction.

[0062] The heat exchange unit body 14 extends in the up-down direction and has a heat exchange channel 16 extending in the up-down direction. The two ends of the heat exchange channel 16 in the up-down direction are respectively connected to the first manifold 111 and the second manifold 121. When the heat exchanger 10 is a condenser, when the outside temperature is low, it is easy to frost on the surface of the heat exchanger 10. When the surface of the heat exchanger 10 is frosted, it is necessary to defrost the surface of the heat exchanger 10. After defrosting, the frost turns into water. By setting the heat exchange unit 13 to extend in the up-down direction, and the guide portion 151 of the heat sink 15 has an angle with the horizontal plane and the first direction, it is convenient for the defrosted water to flow down through the guide portion 151 under the action of gravity; when the heat exchanger 10 is an evaporator, the surface of the heat exchanger 10 is easy to generate condensed water. By setting the heat exchange unit 13 to extend in the up-down direction, and the guide portion 151 of the heat sink 15 has an angle with the horizontal plane and the first direction, it is convenient for the condensed water to flow down through the guide portion 151 under the action of gravity. By setting the first direction as the up-and-down direction, this arrangement effectively improves the drainage performance of the heat exchanger 10 , and can ensure the defrosting performance of the heat exchanger 10 , thereby being beneficial to improving the overall performance of the heat exchanger 10 .

[0063] In addition, there are multiple heat sinks 15 on the heat exchange monomer body 14, and multiple heat sinks 15 can greatly improve the heat exchange capacity of the heat exchange monomer body 14, thereby improving the heat exchange capacity of the heat exchanger 10. At the same time, the multiple heat sinks 15 are all formed with drainage parts 151, and the drainage parts 151 of the multiple heat sinks 15 can greatly improve the drainage performance and defrosting performance of the heat exchanger 10.

[0064] Reference Figure 3-Figure 6 According to some embodiments of the present invention, the entire heat sink 15 is formed as a drainage portion 151, which can greatly improve the drainage effect of the drainage portion 151, and there is no need to specially process the drainage portion 151 for the heat sink 15, which can facilitate the processing and manufacturing of the heat sink 15.

[0065] The heat sink 15 extends obliquely from top to bottom in the third direction, and the water on the surface of the heat exchange monomer body 14 can flow down from the heat exchanger 10 along the oblique direction of the heat sink 15 under the action of its own gravity. By setting the heat sink 15 to be inclined from top to bottom, and the first direction is the up-and-down direction, and the heat exchange monomer body 14 extends along the first direction, the guiding effect of the heat sink 15 can be fully utilized, the drainage performance of the heat exchanger 10 is effectively improved, and the defrosting performance of the heat exchanger 10 can be guaranteed, which is conducive to improving the overall performance of the heat exchanger 10.

[0066] Reference Figure 3-Figure 6According to some embodiments of the present invention, the heat sinks 15 on adjacent sides of two adjacent heat exchange units 13 have the same inclination direction. An airflow channel 17 is defined between two adjacent heat exchange units 13, and the heat sinks 15 on adjacent sides of two adjacent heat exchange units 13 have the same inclination direction. When the airflow passes through the airflow channel 17, the wind resistance generated by the heat sinks 15 on adjacent sides can be ensured to be small, so that the airflow flows more smoothly, thereby improving the heat exchange capacity of the heat exchanger 10.

[0067] Reference Figure 3-Figure 6 According to some embodiments of the present invention, in the third direction and along the flow direction of the airflow, the heat sink 15 extends obliquely from top to bottom. In the third direction, the heat sink 15 extends obliquely from top to bottom, and the water on the surface of the heat exchange monomer body 14 can flow down from the heat exchanger 10 along the oblique direction of the heat sink 15 under the action of its own gravity, which can give full play to the water diversion effect of the heat sink 15, effectively improve the drainage performance of the heat exchanger 10, and ensure the defrosting performance of the heat exchanger 10. At the same time, along the flow direction of the airflow, the heat sink 15 extends obliquely from top to bottom, and the airflow can pass through the airflow channel 17 along the extension direction of the heat sink 15, which can give full play to the diversion effect of the heat sink 15 on the airflow, and can make the wind resistance of the heat sink 15 smaller, thereby improving the heat exchange capacity of the heat exchanger 10. In addition, in the third direction and along the flow direction of the airflow, the heat sink 15 extends obliquely from top to bottom, and the airflow and water both flow along the extension direction of the heat sink 15. The airflow can accelerate the movement of water on the heat sink 15, thereby increasing the drainage speed, thereby further improving the drainage performance and defrosting performance of the heat exchanger 10.

[0068] Reference Figure 7 According to some embodiments of the present invention, the heat exchange monomer body 14 is in the shape of a flat plate. The shape of the heat exchange monomer body 14 in the shape of a flat plate is relatively simple and can be easily produced and processed. The surface of the heat exchange monomer body 14 in the thickness direction faces the airflow channel 17. The surface of the heat exchange monomer body 14 in the thickness direction is a heat exchange surface 18. The heat exchange surface 18 includes a main heat exchange surface 181 in a planar structure, and the heat sink 15 is arranged on the main heat exchange surface 181. By arranging the heat sink 15 on the main heat exchange surface 181 and the main heat exchange surface 181 being a planar structure, the main heat exchange surface 181 in a planar structure can provide sufficient processing space for the processing of the heat sink 15, facilitate the processing and manufacturing of the heat sink 15, and the main heat exchange surface 181 in a planar structure can reduce the difficulty of processing and manufacturing the heat sink 15, and can improve production efficiency to a certain extent.

[0069] Reference Figure 7According to some embodiments of the present invention, in the third direction, the length L1 of the heat exchange monomer body 14 is not greater than 7 mm. For example, the length L1 of the heat exchange monomer 13 can be 1 mm, 3 mm, 5 mm, 7 mm, etc. By setting the length of the heat exchange monomer body 14 to be no greater than 7 mm, it is beneficial to improve the heat exchange capacity of the heat exchanger 10 and reduce the injection amount of the refrigerant. In addition, by setting the length of the heat exchange monomer 13 to be no greater than 7 mm, the width of the heat exchanger 10 along the third direction can be reduced, which is beneficial to the miniaturization of the heat exchanger 10.

[0070] Reference Figure 7 According to some embodiments of the present invention, the thickness L2 of the heat exchange monomer body 14 is not greater than 0.8 mm. For example, the thickness L2 of the heat exchange monomer 13 may be 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, etc. The thickness of the heat exchange monomer body 14 is relatively thin. Compared with the heat exchange monomer 13 with a larger thickness, when the airflow passes through the heat exchange monomer 13, the boundary layer formed between the airflow and the surface of the heat exchange monomer 13 is relatively thin, the convective heat transfer process is more intense, and the heat transfer effect is more obvious, thereby improving the heat transfer capacity of the heat exchange monomer 13, and further improving the heat transfer capacity of the heat exchanger 10 having the heat exchange monomer 13.

[0071] In addition, when the heat exchange monomer 13 of this embodiment is applied to the heat exchanger 10, when the length of the heat exchanger 10 along the second direction is constant, the thickness L2 of the heat exchange monomer body 14 is set to be no more than 0.8 mm, which can further increase the gap between two adjacent heat exchange monomers 13 along the second direction, thereby further reducing the wind resistance caused by the airflow passing through the outer surface of the heat exchange monomer 13 and the heat exchange monomer 13 when exchanging heat, thereby reducing the pressure drop caused by the airflow passing through the heat exchanger 10; and the thickness L2 of the heat exchange monomer 13 is relatively small, which is conducive to reducing the length of the heat exchanger 10 along the second direction, thereby facilitating the miniaturization of the heat exchanger 10.

[0072] Reference Figure 7 According to some embodiments of the present invention, the heat exchange monomer body 14 has a plurality of heat exchange channels 16 arranged at intervals along the third direction, and the length L3 of the heat exchange channel 16 along the third direction is not greater than 0.6 mm. For example, the length L3 of the heat exchange channel 16 can be 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, etc. Setting the length of the heat exchange channel 16 to be no greater than 0.6 mm facilitates the integral molding of the heat exchange channel 16 and the heat exchange monomer 13, which can improve production efficiency, and limiting the length of the heat exchange channel 16 within the length range can limit the length range of the heat exchange monomer 13 in the flow direction of the airflow, which is convenient for designing the arrangement of the heat exchange monomer 13 in the heat exchanger 10, and is conducive to improving the heat exchange capacity of the heat exchanger 10 having the heat exchange monomer 13.

[0073] Reference Figure 7 According to some embodiments of the present invention, the heat exchange monomer body 14 has a plurality of heat exchange channels 16 arranged at intervals along the third direction, and the spacing L4 between adjacent heat exchange channels 16 ranges from 0.2 to 0.4 mm. For example, the spacing L4 between adjacent heat exchange channels 16 may be 0.22 mm, 0.28 mm, 0.32 mm, 0.36 mm, etc. When the extension length of the heat exchange monomer 13 along the flow direction of the airflow is constant and the heat exchange monomer 13 has a plurality of heat exchange channels 16 arranged at intervals along the flow direction of the airflow, the spacing between adjacent heat exchange channels 16 is limited to 0.2 to 0.4 mm, which can ensure the structural strength of the heat exchange monomer 13.

[0074] Reference Figure 7 According to some embodiments of the present invention, the dimension L5 of the heat exchange channel 16 in the thickness direction of the heat exchange monomer 13 ranges from 0.1 to 0.4 mm. For example, the dimension L5 of the heat exchange channel 16 in the thickness direction may be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, etc. Within this dimension range, the diameter of the heat exchange channel 16 is relatively small. Compared with the existing heat exchange channel 16 with a larger diameter, this setting can reduce the injection amount of the refrigerant and reduce the cost of the heat exchanger 10. In addition, the heat exchange channel 16 has a relatively small dimension in the thickness direction of the heat exchange monomer 13, which is conducive to reducing the thickness of the heat exchange monomer 13 and increasing the length between two adjacent heat exchange monomers 13 along the second direction, thereby increasing the heat exchange efficiency of the heat exchanger 10, reducing the wind resistance generated when the airflow flows through the outer surface of the heat exchange monomer 13 and the heat exchange monomer 13, and reducing the pressure drop generated when the airflow flows through the heat exchanger 10.

[0075] The dimension L5 of the heat exchange channel 16 in the thickness direction of the heat exchange unit 13 ranges from 0.1 to 0.4 mm, and accordingly, the dimension L6 of the wall thickness of the heat exchange channel 16 in the thickness direction of the heat exchange unit 13 ranges from 0.2 to 0.35 mm. For example, the dimension L5 of the thickness direction of the heat exchange channel 16 may be 0.2 mm, 0.25 mm, 0.3 mm, 0.34 mm, etc. Within this dimension range, the pressure resistance and corrosion resistance of the heat exchange unit 13 can be guaranteed, and the service life of the heat exchange unit 13 can be extended.

[0076] Reference Figure 3-Figure 4 as well as Figure 7According to some embodiments of the present invention, heat sinks 15 are provided on both sides of the heat exchange monomer body 14 along the second direction. By providing heat sinks 15 on both sides of the heat exchange monomer body 14 along the second direction, the number of heat sinks 15 on a single heat exchange monomer body 14 is large, and more heat sinks 15 can greatly increase the heat exchange surface 18 of a single heat exchange monomer 13, thereby greatly improving the heat exchange capacity and heat exchange efficiency of a single heat exchange monomer 13, thereby improving the heat exchange capacity and heat exchange efficiency of the heat exchanger 10.

[0077] Reference Figure 3-Figure 4 as well as Figure 7 According to some embodiments of the present invention, the heat sinks 15 on adjacent sides of two adjacent heat exchange monomers 13 are arranged relatively to each other in the second direction. By arranging the heat sinks 15 on adjacent sides of two adjacent heat exchange monomers 13 relatively to each other in the second direction, the heat sinks 15 on adjacent sides of the two relatively arranged heat exchange monomers 13 have a better flow guiding effect and a smaller wind resistance, thereby ensuring the heat dissipation capacity of the radiator. In addition, the heat sinks 15 on adjacent sides of two adjacent heat exchange monomers 13 are arranged relatively to each other in the second direction, so that the spacing between the two adjacent heat exchange monomers 13 can be determined more accurately, thereby facilitating or eliminating the operation of setting the spacing between the two adjacent heat exchange monomers 13 during the assembly process of the heat exchanger 10, which can improve the production efficiency to a certain extent.

[0078] Reference Figure 1 According to some embodiments of the present invention, the heat sinks 15 on adjacent sides of two adjacent heat exchange monomers 13 are connected. By connecting the heat sinks 15 on adjacent sides of two adjacent heat exchange monomers 13, the overall structural strength of the heat exchanger 10 can be greatly improved, thereby improving the stability and safety of the operation of the heat exchanger 10 to a certain extent.

[0079] Optionally, the heat sinks 15 on adjacent sides of two adjacent heat exchange units 13 may be connected by welding.

[0080] Refer to the following Figure 1-Figure 7 , describing a heat exchanger 10 according to some embodiments of the present invention.

[0081] The heat exchanger 10 includes a first manifold 11, a second manifold 12, and a plurality of heat exchange units 13. The first manifold 11 includes a first manifold 111, a first connecting pipe 112, and a first inlet and outlet 113. The second manifold 12 includes a second manifold 121, a second connecting pipe 122, and a second inlet and outlet 123. The first inlet and outlet 113 is in communication with the first manifold 111, and the second inlet and outlet 123 is in communication with the second manifold 121. The first manifold 11 may further include a first connecting pipe 112, the first connecting pipe 112 having a first inlet and outlet 113. The second manifold 12 may further include a second connecting pipe 122, the second connecting pipe 122 having a second inlet and outlet 123. The first inlet and outlet 113 is in communication with the first manifold 111, and the second inlet and outlet 123 is in communication with the second manifold 121.

[0082] The heat exchange monomer 13 includes a heat exchange monomer body 14 and a heat sink 15. The heat sink 15 is arranged on the outer surface of the heat exchange monomer body 14 and is integrally formed with the heat exchange monomer body 14. One end of the heat exchange monomer body 14 is connected to the first collecting part 11 and the other end is connected to the second collecting part 12. The heat exchange monomer body 14 has a heat exchange channel 16, which connects the first collecting cavity 111 and the second collecting cavity 121.

[0083] The first current collecting member 11 and the second current collecting member 12 are arranged oppositely and spaced apart along the first direction, a plurality of heat exchange units 13 are arranged along the second direction, and an air flow channel 17 extending along the third direction is defined between adjacent heat exchange units 13, and the third direction, the second direction and the first direction intersect each other. The first direction is the up-down direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0084] The heat exchange monomer body 14 is in a flat plate shape, and the surface of the heat exchange monomer body 14 in the thickness direction is a heat exchange surface 18. The heat exchange surface 18 includes a main heat exchange surface 181 in a planar structure, and the heat sink 15 is arranged on the main heat exchange surface 181. The heat exchange monomer body 14 is provided with heat sinks 15 on both sides of the heat exchange monomer body 14 along the second direction. The heat sinks 15 on the adjacent sides of two adjacent heat exchange monomers 13 are arranged oppositely in the second direction.

[0085] The heat exchange monomer body 14 extends along the first direction, and is provided with a plurality of heat sinks 15 arranged at intervals along the first direction, and the heat sinks 15 each form a flow guide 151, and an angle is formed between the flow guide 151 and the horizontal plane, and between the flow guide 151 and the first direction. In the third direction and along the flow direction of the airflow, the heat sink 15 extends obliquely from top to bottom.

[0086] According to the heat exchanger 10 of some embodiments of the present invention, by providing the heat sink 15 on the heat exchange monomer body 14, the heat dissipation area can be increased, and the heat exchange monomer body 14 and the heat sink 15 are integrally formed, which can reduce the contact thermal resistance between the heat sink 15 and the heat exchange monomer body 14, thereby improving the heat exchange capacity and heat exchange efficiency of the heat exchange monomer 13, and further improving the heat exchange capacity and heat exchange efficiency of the heat exchanger 10. In addition, the integrally formed heat exchange monomer 13 can simplify the production process and improve production efficiency.

[0087] Reference Figure 8 The air conditioning system 100 according to the second embodiment of the present invention comprises: a heat exchanger 10 according to the first embodiment of the present invention.

[0088] like Figure 8 As shown, the air conditioning system 100 may further include a compressor 30, an outdoor heat exchanger 20, a throttling component 23 and an indoor heat exchanger 21. For example, the outdoor heat exchanger 20 may be the heat exchanger 10 of the first embodiment described above. The compressor 30 and the outdoor heat exchanger 20 are usually located in the outdoor unit of the air conditioner. The outdoor unit of the air conditioner may further include an outdoor fan. The outdoor fan may blow outdoor air into the air flow channel 17 to facilitate heat exchange between the refrigerant circulating in the heat exchange monomer 13 and the air. The indoor heat exchanger 21 is located in the indoor unit of the air conditioner. The indoor unit of the air conditioner may further include an indoor fan 22. The indoor fan 22 may drive the indoor air to exchange heat with the indoor heat exchanger 21 to change the indoor temperature. The throttling component 23 (such as an electronic expansion valve) may be connected between the indoor heat exchanger 21 and the outdoor heat exchanger 20. The throttling component 23 is located in the indoor unit of the air conditioner or the outdoor unit of the air conditioner.

[0089] For example, refer to Figure 8 The compressor 30 has an exhaust port 31 and an air return port 32. The exhaust port 31 and the air return port 32 of the compressor 30 are both provided with a first sensor 24 and a second sensor 25. For example, the first sensor 24 may be a temperature sensor, and the second sensor 25 may be a pressure sensor. An oil separator 26 and a first control valve 28 are connected between the exhaust port 31 of the compressor 30 and the outdoor heat exchanger 20. The oil separator 26 can filter the oil in the compressor 30 mixed with the refrigerant, and the filtered oil can enter the compressor 30 for recycling. A gas-liquid separator 27 is connected between the first control valve 28 and the air return port 32 of the compressor 30. The gas-liquid separator 27 can reduce the content of the liquid refrigerant sucked into the air return port 32 of the compressor 30 to avoid liquid hammer in the compressor 30. A second control valve 29 is connected between the indoor heat exchanger 21 and the throttling component 23, and between the indoor heat exchanger 21 and the first control valve 28. The first control valve 28 may be a four-way valve having a first port D, a second port C, a third port E and a fourth port S.

[0090] When the air conditioning system 100 includes the above-mentioned compressor 30, outdoor heat exchanger 20, throttling component 23 and indoor heat exchanger 21, the cooling process of the air conditioning system 100 is as follows: the first interface D and the second interface C are connected, the third interface E and the fourth interface S are connected, the second control valve 29 is turned on, and the refrigerant compressed by the compressor 30 is discharged through the exhaust port 31, passes through the oil separator and the first interface D and the second interface C of the first control valve 28, and enters the outdoor heat exchanger 20 through the first inlet and outlet 113, and performs heat exchange with the air in the air flow channel 17 in the outdoor heat exchanger 20; the refrigerant after heat exchange flows out of the outdoor heat exchanger 20 through the second inlet and outlet 123, and enters the indoor heat exchanger 21 through the throttling component 23, and performs heat exchange with the indoor air to cool the indoor temperature; then, the refrigerant flows out of the indoor heat exchanger 21, passes through the third interface E and the fourth interface S, and flows into the gas-liquid separator 27, and finally enters the compressor 30 through the return air port 32 of the compressor 30.

[0091] When the air conditioning system 100 includes the above-mentioned compressor 30, outdoor heat exchanger 20, throttling component 23 and indoor heat exchanger 21, the heating process of the air conditioning system 100 is as follows: when the air conditioning system 100 is heating, the second control valve 29 is connected, the first interface D and the third interface E of the first control valve 28 are connected, the second interface C and the fourth interface S are connected, and the refrigerant compressed by the compressor 30 is discharged through the exhaust port 31, passes through the oil separator and the first interface D and the third interface E of the first control valve 28, and enters the indoor heat exchanger 21, and heat is exchanged indoors. The refrigerant exchanges heat with the indoor air in the heat exchanger 21 to increase the indoor temperature; after the heat exchange, the refrigerant flows out of the indoor heat exchanger 21, passes through the throttling component 23, and enters the outdoor heat exchanger 20 from the second inlet 123, and exchanges heat with the air in the air flow channel 17 in the outdoor heat exchanger 20; the refrigerant after the heat exchange flows out of the outdoor heat exchanger 20 through the first inlet 113, and the refrigerant flowing out of the outdoor heat exchanger 20 flows into the gas-liquid separator 27 after passing through the second interface C and the fourth interface S, and finally enters the compressor 30 through the return air port 32 of the compressor 30.

[0092] According to the air conditioning system 100 of the embodiment of the present invention, by providing the above-mentioned heat exchanger 10, by providing the heat sink 15 on the heat exchange monomer body 14, the heat dissipation area can be increased, and the heat exchange monomer body 14 and the heat sink 15 are integrally formed, which can reduce the contact thermal resistance between the heat sink 15 and the heat exchange monomer body 14, thereby improving the heat exchange capacity and heat exchange efficiency of the heat exchange monomer 13, and further improving the heat exchange capacity and heat exchange efficiency of the heat exchanger 10. In addition, the integrally formed heat exchange monomer 13 can simplify the production process and improve production efficiency.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0094] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat exchanger, characterized in that: include: A first current collecting member and a second current collecting member, wherein the first current collecting member has a first current collecting cavity, and the second current collecting member has a second current collecting cavity; Multiple heat exchange units, each heat exchange unit includes a heat exchange unit body and a heat sink, the heat sink is arranged on the outer surface of the heat exchange unit body and is integrally formed with the heat exchange unit body, one end of the heat exchange unit body is connected to the first collecting part and the other end is connected to the second collecting part, the heat exchange unit body has a heat exchange channel, and the heat exchange channel connects the first collecting cavity and the second collecting cavity.

2. The heat exchanger according to claim 1, characterized in that: At least a portion of the heat sink is formed with a drainage portion, and an angle is formed between the drainage portion and a horizontal plane.

3. The heat exchanger according to claim 2, characterized in that: The angle between the drainage portion and the horizontal plane is β, and the value range of β is 2° to 6°.

4. The heat exchanger according to claim 1, characterized in that: The thickness of the heat sink is a, and the value range of a is 0.1 mm to 0.3 mm.

5. The heat exchanger according to claim 1, characterized in that: The protruding height of the heat sink relative to the heat exchange monomer body is H, and the value range of H is 1mm to 3mm.

6. The heat exchanger according to claim 1, characterized in that: The heat exchange monomer body is provided with a plurality of heat sinks arranged at intervals along the extension direction of the heat exchange monomer body. Along the extension direction of the heat exchange monomer body, the distance between two adjacent heat sinks on the same heat exchange monomer body is b, and the value range of b is 1.2mm to 2mm.

7. The heat exchanger according to any one of claims 1 to 6, characterized in that: The first current collecting member and the second current collecting member are arranged opposite to each other and spaced apart along a first direction, a plurality of the heat exchange units are arranged along a second direction, and air flow channels extending along a third direction are defined between adjacent heat exchange units, and the third direction, the second direction and the first direction intersect each other.

8. The heat exchanger according to claim 7, characterized in that The heat exchange monomer body extends along the first direction, and is provided with a plurality of heat sinks arranged at intervals along the first direction. The first direction is an up and down direction, and at least a portion of the heat sink is formed with a drainage portion, and an angle is formed between the drainage portion and a horizontal plane and between the drainage portion and the first direction.

9. The heat exchanger according to claim 8, characterized in that The entire heat sink is formed as the drainage portion, and the heat sink extends obliquely from top to bottom in the third direction.

10. The heat exchanger according to claim 9, characterized in that The heat sinks on adjacent sides of two adjacent heat exchange units have the same inclination direction.

11. The heat exchanger according to claim 9, characterized in that In the third direction and along the flow direction of the airflow, the heat sink extends obliquely from top to bottom.

12. The heat exchanger according to claim 7, characterized in that The heat exchange monomer body is in a flat plate shape, and the surface of the heat exchange monomer body in the thickness direction faces the airflow channel. The surface of the heat exchange monomer body in the thickness direction is the heat exchange surface, and the heat exchange surface includes a main heat exchange surface with a planar structure, and the heat sink is arranged on the main heat exchange surface.

13. The heat exchanger according to claim 7, characterized in that The heat sinks are disposed on opposite sides of the heat exchange unit body along the second direction.

14. The heat exchanger according to claim 13, characterized in that The heat sinks on adjacent sides of two adjacent heat exchange units are arranged opposite to each other in the second direction.

15. The heat exchanger according to claim 14, characterized in that The heat sinks on adjacent sides of two adjacent heat exchange units are connected.

16. An air conditioning system, characterized in that: include: A heat exchanger according to any one of claims 1 to 15.

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