Water-cooling radiator and automobile
By embedding the water-cooling tubes into the shell through die casting, the problem of welding cracks caused by friction welding is solved, achieving efficient production and good heat dissipation, and improving the safety and airtightness of the water-cooled radiator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NOBO AUTOMOTIVE TECH CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-01
AI Technical Summary
Existing water-cooled radiators use friction welding to process the casing and flow channels, which results in high welding complexity, long cycle time, and easy generation of welding cracks, posing a safety hazard to the casing.
The water-cooling pipes are embedded in the shell using a die-casting process, forming a cooling channel for the coolant to flow through. This avoids the welding process, ensures that there are no gaps between the shell and the water-cooling pipes, and improves airtightness and production efficiency.
It simplifies the processing steps, reduces the risk of welding cracks, improves chip safety and airtightness, and reduces production costs and testing difficulty.
Smart Images
Figure CN224192271U_ABST
Abstract
Description
Water-cooled radiators and automobiles Technical Field
[0001] This utility model belongs to the field of automotive technology, specifically relating to a water-cooled radiator and an automobile. Background Technology
[0002] Current water-cooled radiators typically use friction welding to fabricate the liquid flow channels in the casing. However, the welding process is complex and time-consuming, making the inspection of the casing channels cumbersome. Furthermore, when forming the casing channels onto the water-cooled radiator casing using friction welding, weld cracks can occur during the welding process, leading to significant safety risks for the chips mounted on the casing. Summary of the Invention
[0003] The purpose of this invention is to provide a water-cooled radiator and automobile that avoids welding cracks caused by welding in the prior art and solves the safety hazards of the casing in the prior art.
[0004] To achieve the above objectives, this utility model provides a water-cooled radiator for dissipating heat from the controller. The water-cooled radiator includes:
[0005] The housing has multiple mounting surfaces for mounting chips;
[0006] The water-cooling tube has cooling channels inside for the flow of coolant. The water-cooling tube is die-cast and embedded in one side of the housing. The water-cooling tube passes through at least one mounting surface to dissipate heat from the chip during operation.
[0007] In an embodiment of this utility model, the water-cooled pipe includes a pipe body, which includes a first water pipe section, a second water pipe section, and a third water pipe section connected in sequence. A first arc-shaped segment is connected between the first water pipe section and the second water pipe section, and a second arc-shaped segment is connected between the connection between the second water pipe section and the third water pipe section. The first arc-shaped segment and the second arc-shaped segment have the same curvature and the same center.
[0008] In the embodiments of this utility model, the first water pipe section, the second water pipe section, and the third water pipe section are all straight tubular structures, and the extension line of the second water pipe section is perpendicular to the extension lines of the first water pipe section and the third water pipe section.
[0009] In embodiments of this utility model, the ratio of the thickness of the tube body to the inner diameter of the tube body is in the range of 1 / 7 to 1 / 5.
[0010] In an embodiment of this utility model, the water-cooling pipe further includes a fourth water pipe section. The two ends of the fourth water pipe section are respectively connected to the third water pipe section and the second arc segment in an arc transition. The arc of the connection between the fourth water pipe section and the third water pipe section and the second arc segment is 135°.
[0011] In an embodiment of this utility model, the fourth water pipe section includes a first bent pipe section, a first straight pipe section, and a second bent pipe section connected sequentially along the length direction. The arc of the first bent pipe section and the second bent pipe section is 135°, and the angle between the extension line of the first straight pipe section and the extension line of the third water pipe section is 45°.
[0012] In an embodiment of this utility model, the water-cooled pipe further includes a head, and the end of the first water pipe section away from the first arc segment and the end of the third water pipe section away from the fourth water pipe section are both provided with heads, the inner diameter of which is larger than the inner diameter of the pipe body.
[0013] In an embodiment of this utility model, a plurality of heat dissipation protrusions are also formed on the housing. The number of heat dissipation protrusions is consistent with the number of chips and is set in a one-to-one correspondence. The heat dissipation protrusions on the side facing the chip and is used to abut against the chip.
[0014] In an embodiment of this utility model, the water-cooling pipe is a one-piece molded part made of stainless steel.
[0015] In an embodiment of this utility model, an automobile is also proposed, including the water-cooled radiator as described above.
[0016] Through the above technical solutions, the water-cooled radiator and automobile provided by the embodiments of this utility model have the following beneficial effects:
[0017] The water-cooled heat sink of this application includes a housing and water-cooling tubes. The housing has multiple mounting surfaces for mounting chips. The water-cooling tubes have internal cooling channels for coolant flow. The water-cooling tubes are die-cast and embedded in the housing, and must pass through at least one mounting surface to ensure that when coolant is introduced into the cooling channels during operation, the coolant can efficiently remove heat from the chip, ensuring good heat dissipation performance. The water-cooled heat sink of this embodiment can be manufactured simply by die-casting the housing and water-cooling tubes after the water-cooling tubes are fabricated. Compared to existing methods such as friction welding, this method simplifies the process, shortens processing time, and increases production efficiency. Furthermore, because this application uses die casting to process the water-cooled heat sink, welding is avoided, ensuring that no welding cracks appear on the water-cooling tubes. This reduces the risk of leakage and chip damage while maintaining good heat dissipation, thus improving chip safety. Moreover, in water-cooled radiators made by die casting, gaps are less likely to appear between the shell and the water-cooling pipes, resulting in better airtightness and reducing the cost of airtightness testing for water-cooled radiators.
[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:
[0020] Figure 1 is a schematic diagram of the structure of the water-cooled radiator according to the present invention;
[0021] Figure 2 is a schematic diagram of the water-cooling pipe according to this utility model;
[0022] Figure 3 is a cross-sectional view of the water-cooled radiator according to this utility model.
[0023] Explanation of reference numerals in the attached figures
[0024] 1. Shell 25. Second arc segment
[0025] 11 Installation surface 26 Fourth water pipe section
[0026] 2. Water-cooled pipe 261, first bend section
[0027] 21 First Water Pipeline Section 262 First Straight Pipeline Section
[0028] 22 Second Water Pipe Section 263 Second Bend Section
[0029] 23 Third Water Pipeline Section 27 Pier Head
[0030] 24 First arc segment Detailed Implementation
[0031] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0032] The following description, with reference to the accompanying drawings, describes a water-cooled radiator and an automobile according to the present invention.
[0033] As shown in Figure 3, this embodiment proposes a water-cooled heat sink for dissipating heat from the controller. The water-cooled heat sink includes a housing 1 and a water-cooling pipe 2. The housing 1 has multiple mounting surfaces 11 for mounting chips. As shown in Figure 1, there are two mounting surfaces 11 for mounting chips. Specifically, the number of mounting surfaces 11 can be adjusted according to actual needs. The water-cooling pipe 2 has a cooling pipe for coolant flow inside. The water-cooling pipe 2 is die-cast and embedded in the housing 1, and the water-cooling pipe 2 needs to pass through at least one mounting surface 11 to ensure that after the coolant is introduced into the cooling pipe in the working state, the coolant can efficiently remove the heat from the chip, ensuring that the water-cooled heat sink has a good heat dissipation effect. The water-cooled heat sink of this embodiment can be manufactured by die-casting the housing 1 and the water-cooling pipe 2 after the water-cooling pipe 2 is manufactured. Compared with the friction welding and other methods in the prior art, the operation steps are simplified, the processing time is short, and the production efficiency is high. Furthermore, since this application uses die casting to process the water-cooled heat sink, the welding step is avoided, ensuring that no welding cracks appear on the water-cooling pipe 2. While ensuring good heat dissipation, this reduces the risk of water-cooled heat sink leakage damaging the chip, thus improving chip safety. Moreover, in a die-cast water-cooled heat sink, gaps are less likely to appear between the shell 1 and the water-cooling pipe 2, resulting in better airtightness and reducing the cost of airtightness testing for the water-cooled heat sink.
[0034] As shown in Figure 2, in this embodiment, the water-cooled pipe 2 includes a pipe body, which includes a first water pipe section 21, a second water pipe section 22, and a third water pipe section 23 connected in sequence. A first arc-shaped segment 24 connects the first water pipe section 21 and the second water pipe section 22, and a second arc-shaped segment 25 connects the second water pipe section 22 and the third water pipe section 23. The first arc-shaped segment 24 and the second arc-shaped segment 25 have the same curvature and the same center. Preferably, in this embodiment, the curvature of the first arc-shaped segment 24 and the second arc-shaped segment 25 is set to 90°, ensuring that the liquid inlet and liquid outlet on the pipe body are located on the same side, which facilitates coolant circulation.
[0035] As shown in Figure 2, in this embodiment, the first water pipe section 21, the second water pipe section 22, and the third water pipe section 23 are all straight tubular structures, which facilitates the circulation of coolant. The extension line of the second water pipe section 22 is perpendicular to the extension lines of the first water pipe section 21 and the third water pipe section 23, making the water cooling pipe 2 as a whole "U" shape. This effectively reduces the space occupancy of the water cooling pipe 2 while concentrating the heat dissipation area of the water cooling pipe 2.
[0036] In this embodiment, the ratio of the thickness of the tube body to the inner diameter of the tube body is in the range of 1 / 7 to 1 / 5. Within this range, the tube body has good resistance to compression, which avoids the tube body being deformed by compression during the processing of the water-cooled radiator, thus affecting the factory quality of the water-cooled radiator.
[0037] Preferably, the water-cooling pipe 2 in this embodiment can have the following dimensions:
[0038] The tube body has a thickness of 2mm and an inner diameter of 13mm, with a thickness-to-inner-diameter ratio of 2:13. In this embodiment, the tube body exhibits optimal resistance to compression. Furthermore, preferably, the pressure range during the die-casting process of the water-cooled radiator is 80MPa-100MPa to ensure that the tube body is not easily damaged during die-casting, thus ensuring stable product quality upon delivery.
[0039] As shown in Figure 2, in this embodiment, the water-cooling pipe 2 also includes a fourth water pipe section 26. The two ends of the fourth water pipe section 26 along the length direction are respectively connected to the third water pipe section 23 and the second arc segment 25 in an arc transition. The arc of the connection between the fourth water pipe section 26 and the third water pipe section 23 and the second arc segment 25 is 135°, which expands the heat dissipation area of the water-cooling pipe 2 and ensures that the fourth water pipe section 26 can perform water cooling heat dissipation efficiently.
[0040] As shown in Figure 2, in this embodiment, the fourth water pipe section 26 includes a first bent pipe section 261, a first straight pipe section 262, and a second bent pipe section 263 connected sequentially along the length direction. The arc of the first bent pipe section 261 and the second bent pipe section 263 is 135°, and the angle between the extension line of the first straight pipe section 262 and the extension line of the third water pipe section 23 is 45°. The 135° arc of the first bent pipe section 261 and the second bent pipe section 263 ensures smooth flow of coolant, guaranteeing good water cooling performance of the water-cooled radiator. Additionally, the water-cooling pipe 2 also includes a fifth water pipe section. The first bent pipe section 261 is connected to the first straight pipe section 262 and the third water pipe section 23. The two ends of the fifth water pipe section along the length direction are connected to the second bent pipe section 263 and the second arc-shaped section 25, respectively. The extension line of the fifth water pipe section is perpendicular to the extension line of the second water pipe section 22.
[0041] As shown in Figure 2, in this embodiment, the water-cooled pipe 2 further includes a headstock 27. The end of the first water pipe section 21 away from the first arc-shaped segment 24 and the end of the third water pipe section 23 away from the fourth water pipe section 26 are both provided with headstocks 27. The inner diameter of the headstock 27 is larger than the inner diameter of the pipe body. Preferably, the inner diameter of the headstock 27 is in the range of 13mm-16mm, resulting in good structural stability. Furthermore, the outer peripheral wall of the headstock 27 also has a circumferential protrusion, facilitating assembly and sealing with external workpieces. The headstock 27 is integrally formed with the first water pipe section 21 and the third water pipe section 23, avoiding the risk of coolant leakage due to poor fit between the headstock 27 and the first water pipe section 21 and the third water pipe section 23.
[0042] In this embodiment, a plurality of heat dissipation protrusions are also formed on the housing 1. The number of heat dissipation protrusions is consistent with the number of chips and is set one-to-one. The heat dissipation protrusions on the side facing the chip and is used to abut against the chip. The top of the heat dissipation protrusion forms a mounting surface 11 for mounting the chip, which can better fit the chip and facilitate the heat transfer to the water cooling pipe 2 for water cooling heat dissipation.
[0043] In this embodiment, the water-cooling pipe 2 is a one-piece molded part made of stainless steel, which has high structural strength and low manufacturing cost.
[0044] In this embodiment, an automobile is also proposed, including the water-cooled radiator described above. Since the automobile employs all embodiments of the water-cooled radiator, it also possesses all the beneficial effects brought by the water-cooled radiator, which will not be elaborated upon here.
[0045] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A water-cooled radiator for dissipating heat from a controller, characterized in that, The water-cooled heat sink includes: a housing (1) having multiple mounting surfaces (11) for mounting chips; a water-cooling pipe (2) having a cooling channel inside for coolant to flow through, the water-cooling pipe (2) being die-cast into one side of the housing (1), the water-cooling pipe (2) passing through at least one of the mounting surfaces (11) to dissipate heat from the chip in the working state.
2. The water-cooled radiator according to claim 1, characterized in that, The water-cooled pipe (2) includes a pipe body, which includes a first water pipe section (21), a second water pipe section (22), and a third water pipe section (23) connected in sequence. A first arc-shaped segment (24) is connected between the first water pipe section (21) and the second water pipe section (22), and a second arc-shaped segment (25) is connected between the second water pipe section (22) and the third water pipe section (23). The first arc-shaped segment (24) and the second arc-shaped segment (25) have the same curvature and the same center.
3. The water-cooled radiator according to claim 2, characterized in that, The first water pipe section (21), the second water pipe section (22), and the third water pipe section (23) are all straight tubular structures. The extension line of the second water pipe section (22) is perpendicular to the extension lines of the first water pipe section (21) and the third water pipe section (23).
4. The water-cooled radiator according to claim 2, characterized in that, The ratio of the thickness of the tube body to the inner diameter of the tube body is in the range of 1 / 7 to 1 / 5.
5. The water-cooled radiator according to claim 2, characterized in that, The water-cooled pipe (2) also includes a fourth water pipe section (26), which is connected to the third water pipe section (23) and the second arc segment (25) in an arc transition at both ends along the length direction. The arc of the connection between the fourth water pipe section (26) and the third water pipe section (23) and the second arc segment (25) is 135°.
6. The water-cooled radiator according to claim 5, characterized in that, The fourth water pipe section (26) includes a first bent pipe section (261), a first straight pipe section (262), and a second bent pipe section (263) connected sequentially along the length direction. The arc of the first bent pipe section (261) and the second bent pipe section (263) is 135°. The angle between the extension line of the first straight pipe section (262) and the extension line of the third water pipe section (23) is 45°.
7. The water-cooled radiator according to claim 5, characterized in that, The water-cooled pipe (2) also includes a head (27). The head (27) is provided at the end of the first water pipe section (21) away from the first arc segment (24) and at the end of the third water pipe section (23) away from the fourth water pipe section (26). The inner diameter of the head (27) is larger than the inner diameter of the pipe body.
8. The water-cooled radiator according to any one of claims 1 to 7, characterized in that, The housing (1) also has a plurality of heat dissipation protrusions, the number of which is the same as the number of chips and is set in a one-to-one correspondence. The heat dissipation protrusions out toward the side of the chip and is used to abut against the chip.
9. The water-cooled radiator according to any one of claims 1 to 7, characterized in that, The water-cooling pipe (2) is a one-piece molded part made of stainless steel.
10. A car, characterized in that, Includes the water-cooled radiator according to any one of claims 1 to 9.