Water-air heat exchanger with parallel pipe double-row arrangement
Patent Information
- Application Number
- CN202522213460.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-20
AI Technical Summary
其中，单层结构水空换热器左右温差较大，影响车内不同位置乘员的舒适体验；而双层流道的水空换热器，虽然明显减小了温差，但由于管路进出口位于同侧，当冷却液中夹带有气体注入时，存在气泡滞留在入口侧，难以从出口排出的风险，与新注入的冷却液发生碰撞会产生异响
[0018](1)本实用新型中的进水管路和出水管路并联设置，第一进水口和第二进水口位于芯体相对侧且左右交错设置，第一出水口和第二出水口位于芯体相对侧且左右交错设置，第一进水口与第二出水口位于芯体同侧且上下交错设置，第二进水口与第一出水口位于芯体同侧且上下交错设置，第一进水口、第一下集流部、第一扁管、第一上集流部以及第一出水口形成独立的冷却液通道，所述第二进水口、第二下集流部、第二扁管、第二上集流部以及第二出水口形成独立的冷却液通道，第一上集流部与第二上集流部、第一下集流部与第二下集流部的流向相反设置，使冷却液在芯体内均匀分配，提升换热均匀性；
Smart Images
Figure CN224905769U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of heat exchangers, and in particular to a water-air heat exchanger with a parallel pipeline double-row arrangement. Background Technology
[0002] Water-air heat exchangers are devices that exchange heat between coolant and air, and are widely used in air conditioning, refrigeration, and other systems. Currently, the most common types on the market are single-layer and double-layer flow-channel water-air heat exchangers. Single-layer water-air heat exchangers have a larger temperature difference between the left and right sides, affecting the comfort of occupants in different positions within the vehicle. While double-layer flow-channel water-air heat exchangers significantly reduce the temperature difference, because the inlet and outlet pipes are located on the same side, there is a risk that when air is injected into the coolant, the air bubbles may become trapped at the inlet and difficult to expel from the outlet, potentially causing collisions with newly injected coolant and producing abnormal noises.
[0003] Therefore, there is an urgent need to design a water-air heat exchanger that can ensure excellent core uniformity while avoiding abnormal noise. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a water-air heat exchanger with parallel pipelines arranged in double rows, including a core body, a water inlet pipeline and a water outlet pipeline arranged in parallel; the water inlet pipeline includes a first water inlet and a second water inlet, the first water inlet and the second water inlet are located on opposite sides of the core body and are staggered left and right, so that the coolant can enter the core body evenly from the two inlets.
[0005] The water outlet pipeline includes a first water outlet and a second water outlet. The first water outlet and the second water outlet are located on opposite sides of the core and are staggered left and right, so that the coolant after heat exchange can flow out from the two outlets in a concentrated manner.
[0006] The first water inlet and the second water outlet are located on the same side of the core and are staggered vertically.
[0007] The second water inlet and the first water outlet are located on the same side of the core and are staggered vertically.
[0008] Furthermore, the core includes an upper manifold, a lower manifold, flat tubes, fins, and side plates. The flat tubes are connected between the upper and lower manifolds to form a coolant flow channel. The fins are disposed between the flat tubes to provide contact area for heat exchange between air and coolant. The side plates are located between the upper and lower manifolds and on both sides of the upper and lower manifolds to ensure structural stability.
[0009] Furthermore, the upper manifold is provided with a first baffle plate, which divides the upper manifold into a first upper manifold section and a second upper manifold section; the lower manifold is provided with a second baffle plate, which divides the lower manifold into a first lower manifold section and a second lower manifold section.
[0010] Furthermore, the flat tube includes a first flat tube and a second flat tube, wherein the first flat tube is located in a first upper collector section and a first lower collector section; and the second flat tube is located in a second upper collector section and a second lower collector section.
[0011] Furthermore, the first water inlet and the second water inlet are located at the lower manifold, and the first water inlet is connected to the first lower manifold, and the second water inlet is connected to the second lower manifold.
[0012] The first water outlet and the second water outlet are located at the upper collecting pipe, and the first water outlet is connected to the first upper collecting section, and the second water outlet is connected to the second upper collecting section.
[0013] Furthermore, the first inlet, the first lower manifold, the first flat tube, the first upper manifold, and the first outlet form independent coolant channels;
[0014] The second inlet, the second lower manifold, the second flat tube, the second upper manifold, and the second outlet form independent coolant channels. The coolant flows downwards and upwards within the core (entering the flat tube from the lower manifold and flowing out through the upper manifold), utilizing gravity to prevent air bubbles from accumulating.
[0015] Furthermore, the first upper flow collector and the second upper flow collector, as well as the first lower flow collector and the second lower flow collector, are arranged in opposite directions to ensure uniform distribution of coolant.
[0016] Furthermore, the first and second water inlets are connected to the same loop system; the first and second water outlets are connected to the same external outlet.
[0017] This utility model has the following beneficial effects:
[0018] (1) In this utility model, the water inlet pipe and the water outlet pipe are arranged in parallel. The first water inlet and the second water inlet are located on opposite sides of the core and are arranged alternately. The first water outlet and the second water outlet are located on opposite sides of the core and are arranged alternately. The first water inlet and the second water outlet are located on the same side of the core and are arranged alternately. The second water inlet and the first water outlet are located on the same side of the core and are arranged alternately. The first water inlet, the first lower collector, the first flat pipe, the first upper collector and the first water outlet form an independent coolant channel. The second water inlet, the second lower collector, the second flat pipe, the second upper collector and the second water outlet form an independent coolant channel. The first upper collector and the second upper collector, the first lower collector and the second lower collector are arranged in opposite directions, so that the coolant is evenly distributed in the core and the heat exchange uniformity is improved.
[0019] (2) The first and second water inlets in this utility model are located at the lower manifold, which can make the coolant flow more smoothly by gravity, prevent the heat exchange efficiency from decreasing due to the retention of air bubbles, and at the same time, the air bubbles are directly discharged to avoid abnormal noise. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Figure 2 This is a cross-sectional view of the present invention.
[0022] Figure 3 This is a simplified schematic diagram of the internal temperature principle logic of this utility model under heating conditions.
[0023] Figure 4 This is a simplified schematic diagram of the internal temperature principle logic of this utility model under cooling conditions. Detailed Implementation
[0024] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. However, this embodiment is not intended to limit this utility model. Any similar structure or similar variation of this utility model should be included in the protection scope of this utility model. The commas in this utility model all indicate the relationship between and. The English letters in this utility model are case-sensitive.
[0025] like Figures 1-2 As shown, this utility model provides a water-air heat exchanger with parallel pipelines arranged in a double row, including a core, and parallel inlet and outlet pipelines. The inlet pipeline includes a first inlet 1 and a second inlet 2, which are located on opposite sides of the core and staggered left and right, allowing coolant to enter the core evenly from both inlets. The outlet pipeline includes a first outlet 3 and a second outlet 4, which are located on opposite sides of the core and staggered left and right, allowing the cooled coolant to flow out from both outlets in a concentrated manner. The first inlet 1 and the second outlet 4 are located on the same side of the core and staggered vertically. The second inlet 2 and the first outlet 3 are located on the same side of the core and staggered vertically. The first inlet 1 and the second inlet 2 are connected to a common loop system. The first outlet 3 and the second outlet 4 are connected to a common external outlet.
[0026] The core includes an upper manifold 5, a lower manifold 6, a flat tube 7, fins 8, and a side plate 9. The flat tube 7 connects the upper manifold 5 and the lower manifold 6 (only a portion of the flat tube is shown in the attached figure, the middle part is not shown), forming a coolant flow channel. The fins 8 are disposed between the flat tubes 7 (only a portion of the fins 8 is shown in the figure, fins are provided between the flat tubes 7, but not fully shown), providing contact area for heat exchange between air and coolant. The side plate 9 is located between the upper manifold 5 and the lower manifold 6, and on both sides of the upper manifold 5 and the lower manifold 6, ensuring structural stability.
[0027] The upper manifold 5 is provided with a first baffle 50, which divides the upper manifold 5 into a first upper manifold section 51 and a second upper manifold section 52; the lower manifold 6 is provided with a second baffle 60, which divides the lower manifold 6 into a first lower manifold section 61 and a second lower manifold section 62.
[0028] The flat tube 7 includes a first flat tube 71 and a second flat tube 72. The first flat tube 71 is located in the first upper collector section 51 and the first lower collector section 61; the second flat tube 72 is located in the second upper collector section 52 and the second lower collector section 62.
[0029] The first inlet 1 and the second inlet 2 are located at the lower manifold 6, with the first inlet 1 connected to the first lower manifold 61 and the second inlet 2 connected to the second lower manifold 62. The first outlet 3 and the second outlet 4 are located at the upper manifold 5, with the first outlet 3 connected to the first upper manifold 51 and the second outlet 3 connected to the second upper manifold 52. The first inlet 1, the first lower manifold 61, the first flat tube 71, the first upper manifold 51, and the first outlet 3 form an independent coolant channel; the second inlet 2, the second lower manifold 62, the second flat tube 72, the second upper manifold 52, and the second outlet 4 form an independent coolant channel. The coolant flows downwards and upwards within the core (entering the flat tube from the lower manifold and flowing out through the upper manifold), utilizing gravity to prevent air bubbles from accumulating.
[0030] like Figures 3-4As shown, because the first upper flow collector and the second upper flow collector, and the first lower flow collector and the second lower flow collector are arranged in opposite directions, there are alternating high-temperature zones (red) and low-temperature zones (blue) inside the heat exchanger. When heating, the hot fluid (high-temperature coolant) flows along a specific path, and the liquid after exchanging heat with the air flows out. The heat exchanger is characterized by alternating high-temperature (red) and low-temperature (blue) zones, that is, the upper left side is high-temperature and the right side is low-temperature; the lower left side is low-temperature and the right side is high-temperature. When air flows through these alternating hot and cold zones, the high-temperature zone heats the air, while the low-temperature zone contributes less to heating the air. Finally, the air is neutralized to obtain hot air with a more uniform temperature, avoiding local overheating / overcooling and improving heating comfort and heat exchange efficiency. During cooling, the cold fluid (low-temperature coolant) flows along a specific path, exchanging heat with the air before flowing out. Inside the heat exchanger, low-temperature (blue) and high-temperature (red) zones alternate; specifically, the upper layer has a low-temperature zone on the left and a high-temperature zone on the right; the lower layer has a high-temperature zone on the left and a low-temperature zone on the right. When air flows through these alternating hot and cold zones, the low-temperature zones cool the air, while the high-temperature zones contribute less to cooling. Ultimately, the air neutralizes, resulting in more uniformly cooled air, optimizing the uniformity of the cooling airflow and improving the cooling effect. Figure 3 and Figure 4 The schematic diagram of the internal temperature of the heat exchanger is a simplified representation of the principle and logic, not a replication of the physical location.
[0031] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.
Claims
1. A water-air heat exchanger with parallel pipes arranged in double rows, characterized in that, It includes a core, a water inlet pipe and a water outlet pipe arranged in parallel; the water inlet pipe includes a first water inlet and a second water inlet, the first water inlet and the second water inlet are located on opposite sides of the core and are arranged alternately on the left and right sides; The water outlet pipeline includes a first water outlet and a second water outlet, which are located on opposite sides of the core and are staggered left and right. The first water inlet and the second water outlet are located on the same side of the core and are staggered vertically. The second water inlet and the first water outlet are located on the same side of the core and are staggered vertically.
2. A water-air heat exchanger with parallel pipelines arranged in double rows according to claim 1, characterized in that, The core includes an upper manifold, a lower manifold, a flat tube, fins, and a side plate. The flat tube is connected between the upper manifold and the lower manifold, and the fins are disposed between the flat tubes. The side plate is located between the upper manifold and the lower manifold, and on both sides of the upper manifold and the lower manifold.
3. A water-air heat exchanger with parallel pipelines arranged in double rows according to claim 2, characterized in that, The upper manifold is provided with a first baffle plate, which divides the upper manifold into a first upper manifold section and a second upper manifold section; the lower manifold is provided with a second baffle plate, which divides the lower manifold into a first lower manifold section and a second lower manifold section.
4. A water-air heat exchanger with parallel pipelines arranged in double rows according to claim 3, characterized in that, The flat tube includes a first flat tube and a second flat tube, wherein the first flat tube is located in a first upper collector section and a first lower collector section; and the second flat tube is located in a second upper collector section and a second lower collector section.
5. A water-air heat exchanger with parallel pipelines arranged in double rows according to claim 3, characterized in that, The first water inlet and the second water inlet are located at the lower manifold, and the first water inlet is connected to the first lower manifold, and the second water inlet is connected to the second lower manifold. The first water outlet and the second water outlet are located at the upper collecting pipe, and the first water outlet is connected to the first upper collecting section, and the second water outlet is connected to the second upper collecting section.
6. A water-air heat exchanger with parallel pipelines arranged in double rows according to claim 5, characterized in that, The first inlet, the first lower collector, the first flat tube, the first upper collector, and the first outlet form an independent coolant channel; The second inlet, the second lower manifold, the second flat tube, the second upper manifold, and the second outlet form an independent coolant channel.
7. A water-air heat exchanger with parallel pipelines arranged in double rows according to claim 3, characterized in that, The first upper flow collector and the second upper flow collector, and the first lower flow collector and the second lower flow collector are arranged with opposite flow directions.
8. A water-air heat exchanger with parallel pipelines arranged in double rows according to claim 3, characterized in that, The first and second water inlets are connected to the same loop system; the first and second water outlets are connected to the same external outlet.