Cold air core body, air conditioning system and vehicle

Abstract

The utility model discloses a cold air core body, an air conditioning system and a vehicle, and relates to the technical field of heat pumps. The cold air core comprises a flow guide frame, a plurality of flat pipes and a plurality of fins, the flow guide frame comprises an inlet pipe, an outlet pipe, a flow dividing piece and a flow collecting piece, one end of the inlet end is connected with the flow dividing piece, one end of the outlet pipe is connected with the flow collecting piece, the flat pipes are connected between the flow dividing piece and the flow collecting piece, and the fins are connected with the flat pipes. A heat exchange medium enters the flow dividing piece through the inlet pipe, then is distributed into the flat pipes through the flow dividing piece, then is converged into the flow collecting piece, and finally is discharged from the outlet pipe. Due to the fact that the protruding strips are arranged at the ends, facing the air outlet direction, of the flat pipes, and the drainage grooves are formed between the protruding strips and the fins, condensate water generated on the cold air core body can be blown to the ends, facing the air outlet direction, of the flat pipes by airflow, then is discharged downwards along the drainage grooves and finally is guided to a proper position. The situation that condensate water accumulates on the cold air core body can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and in particular to a cold air core, an air conditioning system, and a vehicle. Background Technology

[0002] Air conditioning systems in vehicles cool the passenger compartment. Because refrigerant is somewhat toxic, to prevent refrigerant leaks from affecting the passenger compartment, the evaporator in the passenger compartment is eliminated and replaced with a cooling air core. Cool water generated by the cooling module passes through the cooling air core, and a fan drives airflow through the core, blowing cool air into the passenger compartment. However, when the air humidity is high, condensation forms on the surface of the cooling air core. Prolonged condensation on the core can easily breed bacteria and produce odors; when the temperature is low, frost can form on the core, increasing airflow resistance and causing uneven airflow temperature. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cooling air core that can guide condensate water to a suitable location.

[0004] This utility model also proposes an air conditioning system and vehicle having the above-mentioned cold air core.

[0005] According to a first aspect embodiment of the present invention, a cold air core is applied to a vehicle air conditioning system, comprising: a flow guide frame including an inlet pipe, an outlet pipe, a flow divider, and a flow collector; one end of the inlet pipe is connected to the flow divider, and one end of the outlet pipe is connected to the flow collector; a plurality of flat tubes are spaced apart along the length direction of the flow divider, and a gap is formed between adjacent flat tubes for airflow driven by the fan to pass through; one end of each of the plurality of flat tubes along its length direction is respectively connected to the flow divider, and the other end is respectively connected to the flow collector. The flat tube is connected to the inner cavity of the flow divider and the inner cavity of the flow collector. The heat exchange medium in the flow divider is distributed to the flow collector through the multiple flat tubes. Multiple fins are arranged in the gap between two adjacent flat tubes. The flat tube has a protrusion at its end along the airflow direction of the cold air core. The protrusion extends along the length of the flat tube. At least one side of the protrusion and the opposite fin form a drainage groove, which extends along the length of the flat tube.

[0006] The cooling air core according to the embodiment of this utility model has at least the following beneficial effects:

[0007] The flow guide frame includes an inlet pipe, an outlet pipe, a flow divider, and a flow collector. One end of the inlet pipe connects to the flow divider, and one end of the outlet pipe connects to the flow collector. Multiple flat tubes connect between the flow divider and the flow collector, and multiple fins connect to the flat tubes. Therefore, the heat exchange medium enters the flow divider through the inlet pipe, is then distributed to the multiple flat tubes, converges into the flow collector, and finally exits from the outlet pipe. Since the flat tubes are connected to the heat exchange medium rather than refrigerant, poisoning caused by refrigerant leakage into the passenger compartment is avoided, improving safety. The fins are arranged in the gaps between adjacent flat tubes, so the airflow driven by the fan passes through the fins, increasing the heat exchange area and thus improving cooling efficiency. Because the flat tubes have ribs at the ends facing the airflow direction, and drainage grooves are formed between the ribs and the fins, condensate generated on the cooling core is blown by the airflow to the end of the flat tube facing the air outlet, then drains down the drainage grooves, and is finally guided to a suitable location. Therefore, it can reduce the accumulation of condensate on the air cooler core, reduce bacterial growth, reduce frost formation on the air cooler core, and improve the uniformity of the outlet air temperature.

[0008] According to some embodiments of the present invention, the convex strip is configured to be formed by narrowing at the end of the flat tube.

[0009] According to some embodiments of the present invention, the flat tube includes a body, and the protruding strip includes a first connecting segment, a second connecting segment, and a bent segment. One side of the first connecting segment is connected to the body, the other side of the first connecting segment is connected to one side of the bent segment, the other side of the bent segment is connected to one side of the second connecting segment, and the other side of the second connecting segment is connected to the body.

[0010] According to some embodiments of the present invention, the flat tube has the convex strip formed at one end along the airflow direction, and the other end includes two sealed and connected bends.

[0011] According to some embodiments of the present invention, the convex strip is fixedly connected to the outer wall of the flat tube.

[0012] According to some embodiments of the present invention, the drainage grooves are formed between the two opposing sides of the convex strip and the corresponding fins, and the two opposing sides of the convex strip are parallel to each other.

[0013] According to some embodiments of the present invention, the fin includes a plurality of first connecting portions, a plurality of second connecting portions, and a plurality of folded edge groups located between two adjacent flat tubes. The plurality of first connecting portions are arranged at intervals along the length direction of the flat tube and connected to the flat tube. The plurality of second connecting portions are arranged at intervals along the length direction of the flat tube and connected to another adjacent flat tube. The plurality of folded edge groups are arranged at intervals along the length direction of the flat tube. Adjacent folded edge groups are connected through the first connecting portions and / or the second connecting portions. Each folded edge group includes a plurality of folded edges connected sequentially along the airflow direction. The folded edges extend along the length direction of the flow divider and are respectively connected at both ends to the first connecting portion and the second connecting portion.

[0014] According to some embodiments of the present invention, the diverter includes a first cover plate and a first main plate connected to each other. The first main plate is provided with a plurality of distribution ports. One end of a plurality of flat tubes is correspondingly inserted into the plurality of distribution ports. A distribution cavity is formed between the first cover plate and the first main plate, which communicates with the plurality of distribution ports. The distribution cavity is connected to the inner cavity of the inlet tube.

[0015] According to some embodiments of the present invention, the flow collector includes a second cover plate and a second main plate connected together. The second main plate is provided with a plurality of return ports. One end of a plurality of flat tubes is correspondingly inserted into a plurality of return ports. A flow collecting cavity is formed between the second cover plate and the second main plate, which communicates with the plurality of return ports. The flow collecting cavity is connected to the inner cavity of the outlet pipe.

[0016] An air conditioning system according to a second aspect of the present invention includes a fan, a water collection tray, and a cold air core as described in the above embodiment. The cold air core is installed above the water collection tray, which is used to collect condensate generated by the cold air core. The fins are inclined downward relative to the horizontal surface to guide the condensate to the drain trough. The fan is located on one side of the cold air core and is used to drive airflow through the flat tube and the fins.

[0017] The air conditioning system according to the embodiments of the present utility model has at least the following beneficial effects:

[0018] By employing the cooling core of the first embodiment, the cooling core includes an inlet pipe, an outlet pipe, a flow divider, and a flow collector, all arranged in a flow guide frame. One end of the inlet pipe is connected to the flow divider, and one end of the outlet pipe is connected to the flow collector. Multiple flat tubes are connected between the flow divider and the flow collector, and multiple fins are connected to the flat tubes. Therefore, the heat exchange medium enters the flow divider through the inlet pipe, is then distributed to the multiple flat tubes by the flow divider, and then flows into the flow collector before finally exiting from the outlet pipe. Since the flat tubes are connected to the heat exchange medium rather than refrigerant, poisoning caused by refrigerant leakage into the passenger compartment can be avoided, improving safety. The fins are arranged in the gaps between adjacent flat tubes, so the airflow driven by the fan passes through the fins, which increases the heat exchange area and thus improves the cooling efficiency. Because the flat tube has a raised rib at the end facing the airflow direction, and a drainage groove is formed between the raised rib and the fins, the condensate generated on the air-cooling core is blown by the airflow to the end of the flat tube facing the air outlet, and then drains down along the drainage groove, finally being guided to a suitable location. This reduces the accumulation of condensate on the air-cooling core, reduces bacterial growth, and also reduces frost formation on the air-cooling core, improving the uniformity of the outlet air temperature.

[0019] The vehicle according to a third aspect of the present invention includes the air conditioning system described in the above embodiments.

[0020] The vehicle according to the embodiments of this utility model has at least the following beneficial effects:

[0021] The air conditioning system using the second embodiment includes an air-cooled core comprising an inlet pipe, an outlet pipe, a distributor, and a collector, all connected to a flow guide frame. One end of the inlet pipe is connected to the distributor, and one end of the outlet pipe is connected to the collector. Multiple flat tubes connect the distributor and the collector, and multiple fins are connected to the flat tubes. Therefore, the heat exchange medium enters the distributor through the inlet pipe, is then distributed to the multiple flat tubes, converges into the collector, and finally exits from the outlet pipe. Since the flat tubes are connected to the heat exchange medium rather than refrigerant, refrigerant leakage into the passenger compartment can prevent poisoning and improve safety. The fins are arranged in the gaps between adjacent flat tubes, allowing the fan-driven airflow to pass through them, increasing the heat exchange area and thus improving cooling efficiency. Because the flat tube has a raised rib at the end facing the airflow direction, and a drainage groove is formed between the raised rib and the fins, the condensate generated on the air-cooling core is blown by the airflow to the end of the flat tube facing the air outlet, and then drains down along the drainage groove, finally being guided to a suitable location. This reduces the accumulation of condensate on the air-cooling core, reduces bacterial growth, and also reduces frost formation on the air-cooling core, improving the uniformity of the outlet air temperature.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of the cooling air core according to an embodiment of the present invention;

[0025] Figure 2 This is an exploded view of the cooling air core of one embodiment of this utility model;

[0026] Figure 3 This is a partial structural schematic diagram of a flat tube according to an embodiment of the present invention;

[0027] Figure 4 This is a top view of a flat tube according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a fin according to an embodiment of the present invention;

[0029] Figure 6 This is a partial structural diagram of the connection between the fins and the flat tube in one embodiment of the present invention;

[0030] Figure 7 yes Figure 2 Enlarged view of point A in the middle;

[0031] Figure 8 yes Figure 2 Enlarged view of point B in the middle.

[0032] Figure label:

[0033] Cooling core 1000;

[0034] Flow guide frame 100; Inlet pipe 110; Outlet pipe 120; Flow divider 130; First cover plate 131; First main plate 132; Distribution port 133; First adapter 135; Flow collector 140; Second cover plate 141; Second main plate 142; Return port 143; Second adapter 145; Side plate 150;

[0035] Flat tube 200; protruding strip 210; first connecting section 211; second connecting section 212; bent section 213; drainage groove 220; body 230; bend 240;

[0036] Fin 300; First connecting part 310; Folded edge assembly 320; Folded edge 321; Second connecting part 330. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] Reference Figure 1 , Figure 2 and Figure 3 As shown, the cold air core 1000 of this utility model, according to one embodiment, can be used in an air conditioning system installed in a vehicle to cool or heat the passenger compartment. The cold air core 1000 of this utility model includes a flow guide frame 100, multiple flat tubes 200, and multiple fins 300. The flow guide frame 100 includes an inlet pipe 110, an outlet pipe 120, a flow divider 130, and a flow collector 140. One end of the inlet pipe 110 is connected to the flow divider 130, and the inner cavity of the inlet pipe 110 communicates with the inner cavity of the flow divider 130. One end of the outlet pipe 120 is connected to the flow collector 140, and the inner cavity of the outlet pipe 120 communicates with the inner cavity of the flow collector 140. Both the flow divider 130 and the flow collector 140 have elongated columnar structures and are arranged at intervals along the vertical direction. Multiple flat tubes 200 are arranged at intervals along the length direction of the diverter 130 and connected between the diverter 130 and the collector 140. For example, the length direction of the diverter 130 is... Figure 2The diagram shows the left-right direction. A gap is formed between adjacent flat tubes 200 for the airflow driven by the fan to pass through. One end of each flat tube 200 along its length is connected to a flow divider 130, and the other end is connected to a flow collector 140. The inner cavity of each flat tube 200 connects the inner cavity of the flow divider 130 and the inner cavity of the flow collector 140; therefore, the heat exchange medium in the flow divider 130 is distributed to the flow collector 140 through the multiple flat tubes 200. The heat exchange medium can be cold water, glycerin, etc.; cold water will be used as an example for explanation later. Multiple fins 300 are connected to the gap between two adjacent flat tubes 200 to increase the heat exchange area.

[0042] Reference Figure 3 , Figure 4 and Figure 5 As shown, the flat tube 200 has a protrusion 210 at its end along the airflow direction of the cold air core 1000, and the airflow direction is... Figure 4 The protruding strip 210 extends along the length direction of the flat tube 200 in a back-to-forward direction. Figure 3 The vertical direction within. (Refer to...) Figure 6 As shown, a drainage groove 220 is formed between at least one side of the convex strip 210 and the opposite fin 300, and the drainage groove 220 extends along the length direction of the flat tube 200.

[0043] In the above scheme, chilled water is supplied by the cooling module of the air conditioning system. The chilled water enters the distributor 130 through the inlet pipe 110, and is then distributed to multiple flat pipes 200 via the distributor 130. It then converges into the collector 140 and finally exits from the outlet pipe 120. The air conditioning system's fan drives airflow through the flat pipes 200 and fins 300. The fins 300 increase the heat exchange area, thereby improving cooling efficiency. Because the flat pipe 200 has a protrusion 210 at the end facing the air outlet, and a drainage groove 220 is formed between the protrusion 210 and the fins 300, the condensate generated on the cold air core 1000 is blown by the airflow to the end of the flat pipe 200 facing the air outlet, then drains down along the drainage groove 220, and is finally guided to a suitable location. Therefore, it reduces the accumulation of condensate on the cold air core 1000, reduces bacterial growth, reduces frost formation on the cold air core 1000, and improves the uniformity of the outlet air temperature.

[0044] Reference Figure 5 and Figure 6As shown in the embodiment of this utility model, the fin 300 includes a plurality of first connecting portions 310, a plurality of second connecting portions 330, and a plurality of folded edge groups 320. The plurality of first connecting portions 310, second connecting portions 330, and folded edge groups 320 are all located between two adjacent flat tubes 200. The plurality of first connecting portions 310 are spaced apart along the length direction of the flat tube 200 and connected to the flat tube 200. The plurality of second connecting portions 330 are spaced apart along the length direction of the flat tube 200 and connected to another adjacent flat tube 200. The plurality of folded edge groups 320 are spaced apart along the length direction of the flat tube 200, and adjacent folded edge groups 320 are connected through first connecting portions 310 and / or second connecting portions 330. The folded edge group 320 includes a plurality of folded edges 321 connected sequentially along the airflow direction. The folded edges 321 extend along the length direction of the flow divider 130, and their two ends are respectively connected to the first connecting portion 310 and the second connecting portion 330.

[0045] Using the above scheme, when condensate is generated in the folded edge assembly 320, since the folded edge 321 extends in the left-right direction, the condensate on the folded edge 321 is guided to the first connecting part 310 and the second connecting part 330 on the left and right sides. After being guided by the first connecting part 310 and the second connecting part 330, the condensate collects in the drain trough 220 and is finally discharged to a suitable location along the drain trough 220. At the same time, the extension direction of the folded edge 321 is approximately perpendicular to the airflow direction, which has a turbulent effect on the airflow and can improve the heat exchange efficiency.

[0046] To ensure that the condensate flows better along the first connecting part 310 and the second connecting part 330, refer to Figure 1 and Figure 5 As shown in the embodiment of this utility model, the first connecting portion 310 and the second connecting portion 330 of the fin 300 are inclined downwards relative to the horizontal plane. For example, the first connecting portion 310 and the second connecting portion 330 are inclined downwards along the airflow direction, so that the condensate can be guided to the drain trough 220, improving drainage efficiency and preventing condensate accumulation. Alternatively, the entire cooling core 1000 can be inclined downwards relative to the horizontal plane, with the inclination direction as shown in the figure. Figure 1 As shown, the upper end of the cold air core 1000 is tilted downwards from back to front.

[0047] Reference Figure 4As shown in the embodiment of this utility model, the protrusion 210 is configured to be formed by narrowing the end of the flat tube 200, that is, the protrusion 210 and the flat tube 200 are integrally formed. The protrusion 210 is formed at one end of the flat tube 200 along the airflow direction, and the other end includes two bends 240, which are sealed together, forming a channel inside the flat tube 200 for the flow of cold water. For example, the flat tube 200 can be integrally formed by a stamping process, which simplifies the production steps and improves production efficiency. The minimum width of the protrusion 210 is smaller than the minimum width of the flat tube 200, which facilitates the formation of a drainage groove 220 between the protrusion 210 and the opposite fin 300.

[0048] Continue to refer to Figure 4 As shown in the embodiment of this utility model, the flat tube 200 includes a body 230, and the protruding strip 210 includes a first connecting section 211, a second connecting section 212, and a bent section 213. One side of the first connecting section 211 is connected to the body 230, and the other side of the first connecting section 211 is connected to one side of the bent section 213. The other side of the bent section 213 is connected to one side of the second connecting section 212, and the other side of the second connecting section 212 is connected to the body 230. Therefore, the protruding strip 210 has a simple structure, is easy to manufacture, and facilitates the formation of a drainage groove 220 between the protruding strip 210 and the fin 300, thereby improving drainage efficiency.

[0049] In another embodiment of this utility model, the protrusion 210 is fixedly connected to the outer wall of the flat tube 200. For example, the protrusion 210 is welded to the outer wall of the flat tube 200, so that a drainage groove 220 is formed between the protrusion 210 and the corresponding fin 300. The appropriate method is selected according to the actual situation.

[0050] Reference Figure 4 As shown in the embodiment of this utility model, drainage grooves 220 are formed between the two opposing sides of the protrusion 210 and the corresponding fins 300, and the two opposing sides of the protrusion 210 are parallel to each other. This method effectively increases the flow area of ​​the drainage grooves 220 and improves drainage efficiency.

[0051] Reference Figure 2 and Figure 7As shown in the embodiment of this utility model, the diverter 130 includes a first cover plate 131 and a first main plate 132. Both the first cover plate 131 and the first main plate 132 are elongated, and the first cover plate 131 is connected to the first main plate 132. The first main plate 132 is provided with multiple distribution ports 133, which are spaced apart along the length of the first main plate 132. One end of multiple flat tubes 200 is correspondingly inserted into the multiple distribution ports 133. A distribution cavity is formed between the first cover plate 131 and the first main plate 132, which communicates with the multiple distribution ports 133. The distribution cavity is connected to the inner cavity of the inlet pipe 110. With the above solution, after the cold water in the inlet pipe 110 enters the distribution cavity, it enters the multiple flat tubes 200 through different distribution ports 133, resulting in high distribution efficiency and thus improving heat exchange efficiency. Moreover, the diverter 130 has a simple structure, is easy to assemble, and has high production efficiency.

[0052] Reference Figure 2 As shown in the embodiment of this utility model, the diverter 130 further includes a first adapter 135, which is sleeved on one end of the first cover plate 131 and one end of the first main plate 132, and one end of the inlet pipe 110 is inserted into the first adapter 135. By setting the first adapter 135 to be sleeved on the first cover plate 131 and the first main plate 132, the separation of the first cover plate 131 and the first main plate 132 can be effectively avoided, improving the reliability and stability of the connection. At the same time, by inserting the inlet pipe 110 into the first adapter 135, the stability and sealing of the inlet pipe 110 connection can be improved, effectively preventing cold water leakage.

[0053] Reference Figure 2 and Figure 8 As shown in the embodiment of this utility model, the manifold 140 includes a second cover plate 141 and a second main plate 142. Both the second cover plate 141 and the second main plate 142 are elongated and connected to each other. The second main plate 142 is provided with multiple return ports 143, which are spaced apart along the length of the second main plate 142. One end of multiple flat tubes 200 is inserted into the multiple return ports 143, and a manifold cavity is formed between the second cover plate 141 and the second main plate 142, connecting the multiple return ports 143. The manifold cavity is connected to the inner cavity of the outlet pipe 120. Therefore, cold water passing through the flat tubes 200 enters the manifold cavity through the water outlet and finally exits through the outlet pipe 120. With the above solution, the manifold 140 has a simple structure, is easy to assemble, has high production efficiency, and can effectively discharge the cold water in the manifold cavity to the outlet pipe 120.

[0054] Reference Figure 2As shown in the embodiment of this utility model, the diverter 130 further includes a second adapter 145. The second adapter 145 is sleeved on one end of the second cover plate 141 and one end of the second main plate 142, and one end of the outlet pipe 120 is inserted into the second adapter 145. By setting the second adapter 145 to be sleeved on the second cover plate 141 and the second main plate 142, the separation of the second cover plate 141 and the second main plate 142 can be effectively avoided, improving the reliability and stability of the connection. At the same time, by inserting the outlet pipe 120 into the second adapter 145, the stability and sealing of the inlet pipe 110 connection can be improved, effectively preventing cold water leakage.

[0055] Reference Figure 2 As shown in the embodiment of this utility model, the cold air core 1000 also includes two side plates 150. The two side plates 150 are located at the left and right ends of the flat tube group composed of multiple flat tubes 200 respectively. The upper and lower ends of the side plates 150 are connected to the flow divider 130 and the flow collector 140. The side plates 150 and the flat tubes 200 are spaced apart, so that some fins 300 can be connected between the flat tubes 200 and the side plates 150 to improve the heat exchange efficiency.

[0056] An embodiment of the air conditioning system of this utility model includes a fan, a condensate tray, and a cooling air core 1000 as described above. The cooling air core 1000 is installed above the condensate tray, which is used to collect condensate generated by the cooling air core 1000. The condensate tray is also provided with a drain pipe, through which the condensate in the condensate tray can be discharged to a suitable location. The fan is located on one side of the cooling air core 1000, for example, at... Figure 1At the rear of the cold air core 1000, a fan drives airflow through flat tubes and fins, thereby blowing cold air into the passenger compartment. The air conditioning system of this embodiment uses the cold air core 1000 described above. A flow guide frame 100 includes an inlet pipe 110, an outlet pipe 120, a flow divider 130, and a flow collector 140. One end of the inlet pipe is connected to the flow divider 130, and one end of the outlet pipe 120 is connected to the flow collector 140. Multiple flat tubes 200 are connected between the flow divider 130 and the flow collector 140, and multiple fins 300 are connected to the flat tubes 200. Therefore, the heat exchange medium enters the flow divider 130 through the inlet pipe 110, is then distributed to the multiple flat tubes 200 by the flow divider 130, then flows into the flow collector 140, and finally exits from the outlet pipe 120. The fins 300 can increase the heat exchange area, thereby improving the cooling efficiency. Because the flat tube 200 has a protrusion 210 at the end facing the air outlet, and a drainage groove 220 is formed between the protrusion 210 and the fins 300, the condensate generated on the air-cooled core 1000 is blown by the airflow to the end of the flat tube 200 facing the air outlet, then drains down along the drainage groove 220, and is finally guided to a suitable location. This reduces the accumulation of condensate on the air-cooled core 1000, reduces bacterial growth, and also reduces frost formation on the air-cooled core 1000, improving the uniformity of the outlet air temperature.

[0057] Since the air conditioning system adopts all the technical solutions of the cold air core 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0058] One embodiment of this utility model describes a vehicle including the air conditioning system described above. The vehicle can be an electric vehicle or a car. The vehicle of this utility model uses the air conditioning system described above. The air conditioning system's cooling core 1000 includes an inlet pipe 110, an outlet pipe 120, a flow divider 130, and a flow collector 140, all connected via a flow guide frame 100. One end of the inlet pipe is connected to the flow divider 130, and one end of the outlet pipe 120 is connected to the flow collector 140. Multiple flat tubes 200 are connected between the flow divider 130 and the flow collector 140, and multiple fins 300 are connected to the flat tubes 200. Therefore, the heat exchange medium enters the flow divider 130 through the inlet pipe 110, is then distributed to the multiple flat tubes 200 by the flow divider 130, then flows into the flow collector 140, and finally exits from the outlet pipe 120. The fins 300 increase the heat exchange area, thereby improving the cooling efficiency. Because the flat tube 200 has a protrusion 210 at the end facing the air outlet, and a drainage groove 220 is formed between the protrusion 210 and the fins 300, the condensate generated on the air-cooled core 1000 is blown by the airflow to the end of the flat tube 200 facing the air outlet, then drains down along the drainage groove 220, and is finally guided to a suitable location. This reduces the accumulation of condensate on the air-cooled core 1000, reduces bacterial growth, and also reduces frost formation on the air-cooled core 1000, improving the uniformity of the outlet air temperature.

[0059] Since the vehicle adopts all the technical solutions of the air conditioning system of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A cold air core, used in a vehicle's air conditioning system, characterized in that, include: A flow guiding frame includes an inlet pipe, an outlet pipe, a flow divider, and a flow collector. One end of the inlet pipe is connected to the flow divider, and one end of the outlet pipe is connected to the flow collector. Multiple flat tubes are spaced apart along the length of the flow divider, and gaps are formed between adjacent flat tubes for airflow driven by a fan to pass through. One end of each flat tube along its length is connected to the flow divider, and the other end is connected to the flow collector. The inner cavity of each flat tube is connected to the inner cavity of the flow divider and the inner cavity of the flow collector. The heat exchange medium in the flow divider is distributed to the flow collector through the multiple flat tubes. Multiple fins are respectively arranged in the gap between two adjacent flat tubes; The flat tube has a protruding strip at its end along the airflow direction of the cold air core. The protruding strip extends along the length of the flat tube. A drainage groove is formed between at least one side of the protruding strip and the opposite fin. The drainage groove extends along the length of the flat tube.

2. The cooling air core according to claim 1, characterized in that: The convex strip is configured to be formed by narrowing at the end of the flat tube.

3. The cooling air core according to claim 2, characterized in that: The flat tube includes a body, and the protruding strip includes a first connecting section, a second connecting section, and a bent section. One side of the first connecting section is connected to the body, the other side of the first connecting section is connected to one side of the bent section, the other side of the bent section is connected to one side of the second connecting section, and the other side of the second connecting section is connected to the body.

4. The cooling air core according to claim 2, characterized in that: The flat tube has a raised strip at one end along the airflow direction, and the other end includes two sealed bends.

5. The cooling air core according to claim 1, characterized in that: The protruding strip is fixedly connected to the outer wall of the flat tube.

6. The cooling air core according to any one of claims 2 to 5, characterized in that: The two opposing sides of the convex strip form drainage grooves with the corresponding fins, and the two opposing sides of the convex strip are parallel to each other.

7. The cooling air core according to claim 1, characterized in that: The fin includes a plurality of first connecting portions, a plurality of second connecting portions, and a plurality of folded edge groups located between two adjacent flat tubes. The plurality of first connecting portions are spaced apart along the length direction of the flat tube and connected to the flat tube. The plurality of second connecting portions are spaced apart along the length direction of the flat tube and connected to another adjacent flat tube. The plurality of folded edge groups are spaced apart along the length direction of the flat tube. Adjacent folded edge groups are connected through the first connecting portions and / or the second connecting portions. Each folded edge group includes a plurality of folded edges connected sequentially along the airflow direction. The folded edges extend along the length direction of the flow divider and are connected at both ends to the first connecting portions and the second connecting portions, respectively.

8. The cooling air core according to claim 1, characterized in that: The diverter includes a first cover plate and a first main plate connected to each other. The first main plate is provided with multiple distribution ports. One end of each of the multiple flat tubes is inserted into the multiple distribution ports. A distribution cavity is formed between the first cover plate and the first main plate, which communicates with the multiple distribution ports. The distribution cavity is connected to the inner cavity of the inlet tube.

9. The cooling air core according to claim 1, characterized in that: The flow collector includes a second cover plate and a second main plate connected together. The second main plate is provided with multiple return ports. One end of each of the multiple flat tubes is inserted into the multiple return ports. A flow collecting cavity is formed between the second cover plate and the second main plate, which communicates with the multiple return ports. The flow collecting cavity is connected to the inner cavity of the outlet pipe.

10. An air conditioning system, characterized in that: The device includes a fan, a water collection tray, and a cooling air core as described in any one of claims 1 to 9. The cooling air core is installed above the water collection tray, which is used to collect condensate generated by the cooling air core. The fins are inclined downward relative to the horizontal surface to guide the condensate to the drain trough. The fan is located on one side of the cooling air core and is used to drive airflow through the flat tube and the fins.

11. A vehicle, characterized in that, Includes the air conditioning system described in claim 10.

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