A stacked radiator
By using a stacked radiator design and a labyrinthine liquid flow channel, the problem of unsatisfactory heat exchange effect of water-air coolers was solved, achieving efficient high-temperature air cooling and cooling water exchange, simplifying the manufacturing process, and improving the operational stability of hydrogen fuel cells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AIPQI THERMAL TECHNOLOGY (WUXI) CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-31
AI Technical Summary
The heat exchange effect of the water-air cooler in the existing technology is not ideal, resulting in insufficient cooling of the high-temperature air in the hydrogen fuel cell and affecting the life of the proton exchange membrane.
The heat sink adopts a stacked design, which combines the first and second core bodies with a labyrinthine liquid flow channel and serrated fins to achieve effective exchange of high-temperature air and cooling water. The welded connection of the first and second air and water seal assemblies ensures the flow path of air and water.
It improves the cooling effect of high-temperature air, extends the flow time of cooling water in the core body, simplifies the manufacturing process, solves the problem of complex fin processing in traditional designs, and improves heat exchange efficiency.
Smart Images

Figure CN224582262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radiators, specifically to a stacked radiator. Background Technology
[0002] A liquid-cooled heat exchanger is essential in a hydrogen fuel cell system. Its primary function is to cool the compressed air (also called cathode air) entering the fuel cell stack, ensuring its efficient and stable operation. During operation, the hydrogen fuel cell must compress air to a preset high pressure to increase the oxygen concentration. However, this compression inevitably causes a rapid rise in air temperature, which is detrimental to the fuel cell's operation. High-temperature air can cause the proton exchange membrane to crack, leading to a reduction in its lifespan.
[0003] Therefore, it is essential to cool the high-temperature air before it enters the fuel cell stack. In existing technologies, water-to-air coolers are typically used to cool the high-temperature air. These existing water-to-air coolers include a core, which is a crucial component for heat exchange. The core of these existing water-to-air coolers comprises water flow channels and air flow channels, which are isolated from each other. These water and air flow channels have regular cross-sections of circular, square, or elongated strips. This structure results in less than ideal heat exchange performance in existing water-to-air coolers. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a stacked heat sink.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a stacked radiator, comprising: A core assembly includes a first side plate, a second side plate, and a core body structure. The core body structure is located between the first side plate and the second side plate. The core body structure includes a predetermined number of first core bodies and a predetermined number of second core bodies. The first core bodies and the second core bodies are stacked on top of each other to form a layered structure. The first core bodies are used for gas flow, and the second core bodies are used for cooling water flow. A first air seal head assembly is mounted on the core assembly and is used to introduce high-temperature air into the first core body of the core body structure of the core assembly. A second gas seal assembly is mounted on the core assembly and is used to receive gas flowing out of the first core body from the core body structure. A first water seal head assembly is mounted on the core assembly and is used to introduce cooling water into the second core body of the core body structure of the core assembly. The second water seal head assembly is mounted on the core assembly and is used to receive water flowing out of the second core body from the core body structure.
[0006] Preferably, the first core body includes a first set of frames, a second set of frames, a first serrated fin, a first sealing strip, a second sealing strip, and a third sealing strip. The first serrated fin is held between the first set of frames and the second set of frames. Both the first set of frames and the second set of frames have gaps that communicate with the first serrated fin. The two sides of the first serrated fin are sealed with the second sealing strip and the third sealing strip, respectively. Both the first set of frames and the second set of frames have notches that are sealed with the first sealing strip.
[0007] Preferably, the second core body includes a third set of frames, a fourth set of frames, a fifth set of frames, a sixth set of frames, a seventh set of frames, an eighth set of frames, a second serrated fin, a third serrated fin, a fourth serrated fin, a fifth serrated fin, and a sixth serrated fin. The second serrated fin is located between the third set of frames and the fourth set of frames, the third serrated fin is located between the fifth set of frames and the sixth set of frames, and the fifth serrated fin is located between the seventh set of frames and the eighth set of frames. The second serrated fin and the third serrated fin are separated by a fourth sealing strip. The third serrated fin and the fifth serrated fin are separated by the fourth sealing strip. The third set of frames, the fourth set of frames, the fifth set of frames, the sixth set of frames, the seventh set of frames, and the eighth set of frames all have gaps through which water can flow.
[0008] Preferably, the first gas seal assembly includes a first gas seal body, a first cover plate, an air inlet connector, and an air inlet pipe. The first cover plate is fixedly connected to the first gas seal body by welding, and the first gas seal body and the first cover plate form a first chamber. The first gas seal body is provided with a first mounting hole and a second mounting hole. At least a portion of the air inlet connector is inserted into the first mounting hole and fixedly connected to the first gas seal body by welding. The air inlet connector communicates with the first chamber. At least a portion of the air inlet pipe is inserted into the second mounting hole and fixedly connected to the first gas seal body by welding. The air inlet pipe communicates with the first chamber.
[0009] Preferably, the second gas seal assembly includes a second gas seal body, a second cover plate, and a gas outlet pipe. The second gas seal body has a second insertion hole, the second cover plate is inserted into the second insertion hole, and the second cover plate is fixedly connected to the second gas seal body by welding. The second gas seal body has a gas outlet pipe mounting hole, at least a portion of the gas outlet pipe is inserted into the gas outlet pipe mounting hole, and the gas outlet pipe is fixedly connected to the gas outlet pipe mounting hole by welding. The second gas seal body and the second cover plate form a second inner cavity, and the gas outlet pipe communicates with the second inner cavity.
[0010] Preferably, the first water seal head assembly includes a first water seal head body, a third cover, a first partition, and a water inlet pipe. The third cover is fixedly connected to the first water seal head body by welding. The first water seal head body is provided with a first partition mounting hole. The first partition is inserted into the first partition mounting hole and fixedly connected to the first water seal head body by welding. The first water seal head body, the first partition, and the third cover together form a third chamber, and the water inlet pipe communicates with the third chamber. When the first water seal head assembly is installed on the core assembly, the first partition is welded to the first air seal head body of the first air seal head assembly, thereby isolating the third chamber from the first chamber by the first partition.
[0011] Preferably, the second water seal head assembly includes a second water seal head body, a fourth cover, a second partition, and an air outlet pipe. The second partition and the fourth cover are both fixedly connected to the second water seal head body by welding. The second water seal head body, the fourth cover, and the second partition together form a fourth inner cavity. The air outlet pipe is installed on the second water seal head body, and the fourth inner cavity communicates with the air outlet pipe. The second partition is welded to the second air seal head body of the second air seal head assembly, thereby isolating the fourth inner cavity from the second inner cavity by the second partition.
[0012] The beneficial effects of this application are as follows: The stacked radiator provided by this application has the advantages of simple structure and easy assembly. Secondly, when the first air seal assembly is installed on the core assembly, the first air seal assembly covers the first set of frames of the first core body, and the first inner cavity of the first air seal assembly is connected to the first set of frames, thereby allowing high-temperature air to enter the first serrated fins through the first air seal assembly. When the second air seal assembly is installed on the core assembly, the second air seal assembly covers the second set of frames of the first core body, and the second inner cavity of the second air seal assembly is connected to the second set of frames, thereby allowing cooled air to flow out from the second air seal assembly. When the first water seal assembly is installed on the core assembly, the first water seal assembly covers the third set of frames of the second core body, and the third inner cavity of the first water seal assembly is connected to the third set of frames, thereby allowing cooling water to flow through the first... The water seal head assembly enters the third set of frames; when the second water seal head assembly is installed on the core assembly, the second water seal head assembly covers the eighth set of frames of the second core body, and the fourth inner cavity of the second water seal head assembly is connected to the eighth set of frames, so that the water that has undergone heat exchange flows out from the second water seal head assembly. The serrated fins used near the first and second water seal head assemblies are perpendicular to the water flow direction, adopting a "Hardway" design. Through a reasonable fin design, the problem of high resistance in the "Hardway" design is solved, and the problem of complex processing and manufacturing of fins that need to be cut to a certain angle or shape in traditional designs is solved, simplifying the manufacturing process; given that the second core body of the core assembly has a labyrinthine liquid flow channel, the cooling water flows in the second core body for a longer time, thereby improving the cooling effect of high-temperature air. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a stacked radiator provided by the present invention.
[0014] Figure 2 This is another structural schematic diagram of a stacked radiator provided by this utility model.
[0015] Figure 3 This is a schematic diagram of the core assembly of a stacked heat sink provided by this utility model.
[0016] Figure 4 This is a schematic diagram of the structure of the second gas seal head assembly of a stacked radiator provided by this utility model.
[0017] Figure 5 A schematic diagram of the structure of the first water seal head assembly of a stacked radiator provided by this utility model.
[0018] Figure 6A schematic diagram of the structure of the first gas seal head assembly of a stacked radiator provided by this utility model.
[0019] Figure 7 This is a schematic diagram of the structure of the second water seal head assembly of a stacked radiator provided by this utility model.
[0020] Figure 8 Another structural schematic diagram of the core assembly of a stacked heat sink provided by this utility model.
[0021] Figure 9 for Figure 8 The diagram shows a cross-sectional view of the core assembly of a stacked heat sink along section line AA.
[0022] Figure 10 for Figure 8 The diagram shows a cross-sectional view of the core assembly of a stacked heat sink along the BB section line. Detailed Implementation
[0023] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0024] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0025] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0026] Please refer to Figure 1-10 This application provides a stacked heat sink (hereinafter referred to as "the heat sink"), the heat sink comprising: The core assembly 1 includes a first side plate 11, a second side plate 12, and a core body structure 13. The core body structure 13 is located between the first side plate 11 and the second side plate 12. The core body structure 13 includes a predetermined number of first core bodies 131 and a predetermined number of second core bodies 132. The first core bodies 131 and the second core bodies 132 are stacked together to form a layered structure. The first core bodies 131 are used for gas flow, and the second core bodies 132 are used for cooling water flow. First air seal head assembly 2, the first air seal head assembly 2 is installed on the core assembly 1, the first air seal head assembly 2 is used to introduce high temperature air into the first core body 131 of the core body structure 13 of the core assembly 1; The second gas seal assembly 3 is mounted on the core assembly 1 and is used to receive gas flowing out from the first core body 131 of the core body structure 13. First water seal head assembly 4, the first water seal head assembly 4 is installed on the core assembly 1, the first water seal head assembly 4 is used to introduce cooling water into the second core body 132 of the core body structure 13 of the core assembly 1; The second water seal assembly 5 is mounted on the core assembly 1 and is used to receive water flowing out from the second core body 132 of the core body structure 13. The working principle of this application is as follows: high-temperature air enters the first core body 131 of the core assembly 1 through the first air seal assembly 2, and cooling water enters the second core body 132 of the core assembly 1 through the first water seal assembly 4. Because the first core body 131 and the second core body 132 are stacked, the cooling water in the second core body 132 cools the high-temperature air in the first core body 131. After cooling, the high-temperature air flows out from the second air seal assembly 3, and the cooling water flows out from the second water seal assembly 5 after heat exchange.
[0027] In some embodiments of this application, please refer to Figure 1-10The first core body 131 includes a first set of frames 1311, a second set of frames 1312, a first serrated fin 1313, a first sealing strip 134, a second sealing strip 135, and a third sealing strip 136. The first serrated fin 1313 is held between the first set of frames 1311 and the second set of frames 1312. Both the first set of frames 1311 and the second set of frames 1312 have gaps that communicate with the first serrated fin 1313. The two sides of the first serrated fin 131 are sealed with the second sealing strip 135 and the third sealing strip 136, respectively. Both the first set of frames 1311 and the second set of frames 1311 have notches that are sealed with the first sealing strip 134. In this way, hot air flows into the first serrated fin 131 from the first set of fins 1311 or the second set of fins 1312, and after being cooled by cooling water, the hot air flows out from the second set of fins 1312 or the first set of fins 1311.
[0028] In some embodiments of this application, please refer to Figure 1-10The second core body 132 includes a third set of frames 1321, a fourth set of frames 1323, a fifth set of frames 1324, a sixth set of frames 1326, a seventh set of frames 1328, an eighth set of frames 13210, a second serrated fin 1322, a third serrated fin 1325, a fourth serrated fin 1327, a fifth serrated fin 1329, and a sixth serrated fin 13211. The second serrated fin 1322 is located between the third set of frames 1321 and the fourth set of frames 1323, and the third serrated fin 1325 is located between the fifth set of frames 1324 and the sixth set of frames 13211. Between 326, the fifth serrated fin 1329 is located between the seventh set of frames 1328 and the eighth set of frames 13210; the second serrated fin 1322 and the third serrated fin 1325 are separated by a fourth sealing strip 1320; the third serrated fin 1325 and the fifth serrated fin 1329 are separated by the fourth sealing strip; the third set of frames 1321, the fourth set of frames 1323, the fifth set of frames 1324, the sixth set of frames 1326, the seventh set of frames 1328, and the eighth set of frames 13210 all have gaps through which water can flow. Of course, the fourth and sixth serrated fins are uniformly sealed by sealing strips and separated from other frames or serrated fins. In this way, the cooling water enters the second serrated fin 1322 through the third frame 1321, then flows through the fourth frame 1323 into the sixth serrated fin 13211, then flows through the fifth frame 1324 into the third serrated fin 1325, then flows through the sixth frame 1326 into the fourth serrated fin 1327, then flows through the seventh frame 1328 into the seventh serrated fin 1329, and finally flows out from the eighth frame 13210.
[0029] In some embodiments of this application, please refer to Figure 1-10The first gas seal head assembly 2 includes a first gas seal head body 21, a first cover plate 22, an air inlet connector 23, and an air inlet pipe 24. The first cover plate 22 is fixedly connected to the first gas seal head body 21 by welding. The first gas seal head body 21 and the first cover plate 22 form a first chamber 20. The first gas seal head body 21 is provided with a first mounting hole 211 and a second mounting hole 212. At least a portion of the air inlet connector 23 is inserted into the first mounting hole 211 and fixedly connected to the first gas seal head body 21 by welding. The air inlet connector 23 communicates with the first chamber 20. At least a portion of the air inlet pipe 24 is inserted into the second mounting hole 212 and fixedly connected to the first gas seal head body 21 by welding. The air inlet pipe 24 communicates with the first chamber 20. In this way, high-temperature air enters the first chamber through the air inlet connector and the air inlet pipe, and the air in the first chamber enters the first core body.
[0030] In some embodiments of this application, please refer to Figure 1-10 The second gas seal head assembly 3 includes a second gas seal head body 31, a second cover plate 32, and a gas outlet pipe 33. The second gas seal head body 31 has a second insertion hole 310, and the second cover plate 32 is inserted into the second insertion hole 310 and fixedly connected to the second gas seal head body 31 by welding. The second gas seal head body 31 has a gas outlet pipe mounting hole 311, and at least a portion of the gas outlet pipe 33 is inserted into the gas outlet pipe mounting hole 311 and fixedly connected to the gas outlet pipe mounting hole 311 by welding. The second gas seal head body 31 and the second cover plate 32 form a second inner cavity 30, and the gas outlet pipe 33 communicates with the second inner cavity 30.
[0031] In some embodiments of this application, please refer to Figure 1-10The first water seal head assembly 4 includes a first water seal head body 41, a third cover 43, a first partition 42, and a water inlet pipe 44. The third cover 43 is fixedly connected to the first water seal head body 41 by welding. The first water seal head body 41 is provided with a first partition mounting hole 411. The first partition 42 is inserted into the first partition mounting hole 411 and fixedly connected to the first water seal head body 41 by welding. The first water seal head body 41, the first partition 42, and the third cover 43 together form a third chamber 40. The water inlet pipe 44 communicates with the third chamber 40. When the first water seal head assembly 4 is installed on the core assembly 1, the first partition 42 is welded to the first air seal head body 21 of the first air seal head assembly 2, thereby isolating the third chamber 40 from the first chamber 20 by the first partition 42. Of course, the above welding refers to not only the fixed connection, but also the sealing connection. For example, after the first partition plate 42 is welded to the first gas seal head body 21, the first chamber 20 is sealed except for the air intake pipe.
[0032] In some embodiments of this application, please refer to Figure 1-10 The second water seal head assembly 5 includes a second water seal head body 51, a fourth cover 52, a second partition 53, and an air outlet pipe 54. The second partition 53 and the fourth cover 52 are both fixedly connected to the second water seal head body 51 by welding. The second water seal head body 51, the fourth cover 52, and the second partition 53 together form a fourth inner cavity 50. The air outlet pipe 54 is installed on the second water seal head body 51, and the fourth inner cavity 50 is connected to the air outlet pipe 54. The second partition 53 is welded to the second air seal head body 31 of the second air seal head assembly 3, so that the fourth inner cavity 50 and the second inner cavity 30 are isolated by the second partition 53.
[0033] The stacked radiator provided in this application has the advantages of simple structure and easy assembly. Secondly, when the first air seal assembly is installed on the core assembly, the first air seal assembly covers the first set of frames of the first core body, and the first inner cavity of the first air seal assembly communicates with the first set of frames, thereby allowing high-temperature air to enter the first serrated fins through the first air seal assembly. When the second air seal assembly is installed on the core assembly, the second air seal assembly covers the second set of frames of the first core body, and the second inner cavity of the second air seal assembly communicates with the second set of frames, thereby allowing cooled air to flow out from the second air seal assembly. The first water seal assembly is installed on the core body... When the first water seal head assembly is installed on the core assembly, it covers the third set of frames of the second core body, and the third inner cavity of the first water seal head assembly is connected to the third set of frames, so that cooling water enters the third set of frames through the first water seal head assembly. When the second water seal head assembly is installed on the core assembly, it covers the eighth set of frames of the second core body, and the fourth inner cavity of the second water seal assembly is connected to the eighth set of frames, so that the water that has undergone heat exchange flows out from the second water seal assembly. Since the second core body of the core assembly has a labyrinthine liquid flow channel, the time for cooling water to flow in the second core body is increased, thereby improving the cooling effect of high-temperature air.
[0034] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A stacked radiator, characterized in that, include: A core assembly includes a first side plate, a second side plate, and a core body structure. The core body structure is located between the first side plate and the second side plate. The core body structure includes a predetermined number of first core bodies and a predetermined number of second core bodies. The first core bodies and the second core bodies are stacked on top of each other to form a layered structure. The first core bodies are used for gas flow, and the second core bodies are used for cooling water flow. A first air seal head assembly is mounted on the core assembly and is used to introduce high-temperature air into the first core body of the core body structure of the core assembly. A second gas seal assembly is mounted on the core assembly and is used to receive gas flowing out of the first core body from the core body structure. A first water seal head assembly is mounted on the core assembly and is used to introduce cooling water into the second core body of the core body structure of the core assembly. The second water seal head assembly is mounted on the core assembly and is used to receive water flowing out of the second core body from the core body structure.
2. The stacked radiator according to claim 1, characterized in that, The first core body includes a first set of frames, a second set of frames, a first serrated fin, a first sealing strip, a second sealing strip, and a third sealing strip. The first serrated fin is held between the first set of frames and the second set of frames. Both the first set of frames and the second set of frames have gaps that communicate with the first serrated fin. The two sides of the first serrated fin are sealed by the second sealing strip and the third sealing strip, respectively. Both the first set of frames and the second set of frames have notches that are sealed by the first sealing strip.
3. The stacked radiator according to claim 1, characterized in that, The second core body includes a third set of frames, a fourth set of frames, a fifth set of frames, a sixth set of frames, a seventh set of frames, an eighth set of frames, a second serrated fin, a third serrated fin, a fourth serrated fin, a fifth serrated fin, and a sixth serrated fin. The second serrated fin is located between the third set of frames and the fourth set of frames, the third serrated fin is located between the fifth set of frames and the sixth set of frames, and the fifth serrated fin is located between the seventh set of frames and the eighth set of frames. The second serrated fin and the third serrated fin are separated by a fourth sealing strip. The third serrated fin and the fifth serrated fin are separated by the fourth sealing strip. The third set of frames, the fourth set of frames, the fifth set of frames, the sixth set of frames, the seventh set of frames, and the eighth set of frames all have gaps through which water can flow.
4. The stacked radiator according to claim 1, characterized in that, The first gas seal head assembly includes a first gas seal head body, a first cover plate, an air inlet connector, and an air inlet pipe. The first cover plate is fixedly connected to the first gas seal head body by welding. The first gas seal head body and the first cover plate form a first chamber. The first gas seal head body is provided with a first mounting hole and a second mounting hole. At least a portion of the air inlet connector is inserted into the first mounting hole and fixedly connected to the first gas seal head body by welding. The air inlet connector communicates with the first chamber. At least a portion of the air inlet pipe is inserted into the second mounting hole and fixedly connected to the first gas seal head body by welding. The air inlet pipe communicates with the first chamber.
5. The stacked radiator according to claim 1, characterized in that, The second gas seal assembly includes a second gas seal body, a second cover plate, and a gas outlet pipe. The second gas seal body has a second insertion hole, into which the second cover plate is inserted and fixedly connected to the second gas seal body by welding. The second gas seal body has a gas outlet pipe mounting hole, into which at least a portion of the gas outlet pipe is inserted and fixedly connected by welding. The second gas seal body and the second cover plate form a second inner cavity, and the gas outlet pipe communicates with the second inner cavity.
6. The stacked radiator according to claim 4, characterized in that, The first water seal head assembly includes a first water seal head body, a third cover, a first partition, and a water inlet pipe. The third cover is fixedly connected to the first water seal head body by welding. The first water seal head body is provided with a first partition mounting hole. The first partition is inserted into the first partition mounting hole and fixedly connected to the first water seal head body by welding. The first water seal head body, the first partition, and the third cover together form a third chamber, and the water inlet pipe communicates with the third chamber. When the first water seal head assembly is installed on the core assembly, the first partition is welded to the first air seal head body of the first air seal head assembly, thereby isolating the third chamber from the first chamber by the first partition.
7. The stacked radiator according to claim 5, characterized in that, The second water seal head assembly includes a second water seal head body, a fourth cover, a second partition, and an air outlet pipe. The second partition and the fourth cover are both fixedly connected to the second water seal head body by welding. The second water seal head body, the fourth cover, and the second partition together form a fourth inner cavity. The air outlet pipe is installed on the second water seal head body, and the fourth inner cavity is connected to the air outlet pipe. The second partition is welded to the second air seal head body of the second air seal head assembly, thereby isolating the fourth inner cavity from the second inner cavity by the second partition.