Radiator, vehicle lamp and motor vehicle
The manufacturing of radiators through metal plate stamping and bending processes solves the problems of complex manufacturing, high cost and poor heat dissipation performance in the prior art, and achieves a more efficient and low-cost heat dissipation effect.
Patent Information
- Application Number
- CN202420934105.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing die-cast and extrusion radiators have complex manufacturing processes, high cost, large volume, large heat dissipation fins have large thickness, occupy space and poor heat dissipation performance.
The radiator is manufactured using metal plate stamping and bending processes, including the base, inner connection and fins, and the evenly distributed inner connection and fins achieves more efficient heat dissipation.
The manufacturing process is simplified, the cost is reduced, the radiator volume is reduced, the heat dissipation performance is improved, and more efficient heat transfer is achieved.
Smart Images
Figure CN222480275U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of heat dissipation, and more specifically, to a radiator, a vehicle lamp including the radiator, and a motor vehicle. Background Art
[0002] Electronic components generate heat when working. If the heat is not dissipated in time, it is likely to affect the performance and life of the electronic components. Therefore, a heat sink needs to be installed around the heat-generating electronic components to effectively dissipate the heat.
[0003] The applicant is aware of a type of heat sink for electronic components, namely, a die-cast heat sink and an extruded heat sink. The manufacturing process of these two types of heat sinks is relatively complicated and requires mold opening, which is inconvenient to manufacture and has high costs. In addition, the volume of the two types of heat sinks is usually relatively large, and the thickness of the heat dissipation fins is relatively thick, which will occupy a large space; finally, it is not easy for these two types of heat sinks to realize a large number of heat dissipation fins, so that the overall heat dissipation performance cannot reach the best. Utility Model Content
[0004] An object of the present application is to overcome at least one of the problems and drawbacks in the background technology.
[0005] A first aspect of the present application provides a heat sink, the heat sink comprising:
[0006] A base, comprising a front surface, a back surface and an outer peripheral surface, wherein the front surface and the back surface are arranged opposite to each other, and the outer peripheral surface is connected between the front surface and the back surface;
[0007] a plurality of inner connecting parts, each of the inner connecting parts extending from the outer peripheral surface of the base toward a first direction, the first direction being a direction from the front side of the base to the back side, the inner connecting part comprising an inner surface and an outer surface arranged opposite to each other, the inner surface being closer to the back side of the base than the outer surface, and the plurality of inner connecting parts being arranged at intervals around the outer peripheral surface of the base; and
[0008] A plurality of fins, each of the fins extends from the corresponding inner connecting portion toward a second direction, the second direction being a direction pointing from the inner surface of the inner connecting portion to the outer surface, and the plurality of fins are spaced around the outer peripheral surface of the base.
[0009] In some embodiments, the front surface of the base is used for thermally contacting a heat source, and the heat sink is used for dissipating heat from the heat source.
[0010] In some embodiments, the heat dissipation fins are respectively disposed at two ends of each of the inner connecting portions along the circumference of the base;
[0011] The inner connection parts are evenly distributed on the outer peripheral surface of the base, and the plurality of fins are evenly distributed around the outer peripheral surface of the base.
[0012] In some embodiments, the base is an axisymmetric structure, and the plurality of inner connecting portions are an axisymmetric structure;
[0013] The base is a centrally symmetrical structure.
[0014] In some embodiments, the angle between the reverse surface of the base and the inner surface of the inner connecting portion is 80°-100°, and the first direction is a direction perpendicularly pointing from the front surface of the base to the reverse surface;
[0015] The included angle between the outer surface of the inner connecting portion and the fin is 70° to 110°, and the second direction is the radial direction of the base.
[0016] In some embodiments, the base, the inner connecting portion and the fin have the same thickness;
[0017] The thickness of the base is less than 2 mm, the thickness of the inner connecting portion is less than 2 mm, and the thickness of the fin is less than 2 mm.
[0018] In some embodiments, the thickness of the base is less than 1 mm, the thickness of the inner connecting portion is less than 1 mm, and the thickness of the fin is less than 1 mm.
[0019] In some embodiments, the heat sink is an integral component formed by stamping and bending a metal plate;
[0020] The inner connecting portion is bent from the base portion, and the fin is bent from the inner connecting portion.
[0021] In some embodiments, the base is a continuous plate-like structure, the inner connecting portion is a continuous plate-like structure, and the fin is a continuous plate-like structure.
[0022] In some embodiments, the base includes a plurality of sub-substrates, the plurality of sub-substrates are arranged at intervals from each other, and the plurality of sub-substrates and the plurality of internal connecting portions are arranged in a one-to-one correspondence.
[0023] A spacing hole is arranged in the middle of the base, and an inner ventilation hole is arranged in the middle of the inner connecting part.
[0024] In some embodiments, the plurality of fins include a head fin, a plurality of middle fins and a tail fin, the head fin and the tail fin are arranged adjacent to each other, and the plurality of middle fins are distributed between the head fin and the tail fin along the circumference of the base;
[0025] The middle fin is connected between the head fin and the tail fin through the inner connecting portion.
[0026] In some embodiments, one of the head fin and the tail fin has a snap-fit portion bent from a main body, and the other has a snap-fit groove, and the snap-fit portion snaps into the snap-fit groove to achieve fixation of the multiple fins.
[0027] In some embodiments, the heat sink further includes a plurality of external connection parts, and adjacent intermediate fins connected to different internal connection parts are connected together through the external connection parts, the external connection parts are connected to the outer ends of the intermediate fins, and external ventilation holes are provided in the middle of the external connection parts.
[0028] A second aspect of the present application provides a vehicle lamp, which includes a heat sink as provided in the first aspect and the above-mentioned embodiments.
[0029] A third aspect of the present application provides a motor vehicle, which includes a radiator as provided in the first aspect and the above-mentioned embodiments or a vehicle lamp as provided in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 A schematic diagram of the structure of a radiator provided in the first embodiment of the present application;
[0031] Figure 2 for Figure 1 A top view of the heat sink is shown;
[0032] Figure 3 for Figure 1 A side view of the radiator is shown;
[0033] Figure 4 for Figure 1 The schematic diagram of the structure of the heat sink in the first state during the manufacturing process is shown;
[0034] Figure 5 for Figure 1 The schematic diagram of the structure of the heat sink in the second state during the manufacturing process is shown;
[0035] Figure 6 A schematic diagram of the structure of a heat sink provided in the second embodiment of the present application;
[0036] Figure 7 for Figure 6 A top view of the heat sink is shown;
[0037] Figure 8 for Figure 6 A partial enlarged view of the radiator shown;
[0038] Fig. 9 for Figure 6The schematic diagram of the structure of the heat sink in the first state during the manufacturing process is shown;
[0039] Fig.10 for Figure 6 A front view of the heat sink shown in a second state during the manufacturing process;
[0040] Fig.11 for Figure 6 A rear view of the heat sink is shown in a second state during the manufacturing process. DETAILED DESCRIPTION
[0041] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that the embodiments of the present application are mainly for illustrating possible implementation methods of the technical solution of the present application and should not be understood as limiting the technical solution of the present application. In this specification, the same or similar parts are indicated by the same or similar reference numerals.
[0042] Figure 1 A schematic structural diagram of a heat sink 100 provided in the first embodiment of the present application; Figure 2 for Figure 1 A top view of the heat sink 100 is shown; Figure 3 for Figure 1 A side view of heat sink 100 is shown.
[0043] like Figure 1-3 As shown, the first embodiment of the present application provides a heat sink 100, which can be used to dissipate heat for a heat source. The heat sink 100 includes a base 10, a plurality of internal connecting parts 20 and a plurality of fins 30. The heat sink 100 can be an integral component formed by stamping and bending a metal plate; the plurality of internal connecting parts 20 are bent from the base 10, and the plurality of fins 30 are bent from the internal connecting parts. Compared with die-cast heat sinks and extruded heat sinks, heat sinks formed by stamping metal plates are more convenient and low-cost to manufacture. The base 10 is used to thermally contact a heat source, and the heat emitted by the heat source can be gradually transferred to the outside through the base 10, the internal connecting parts 20 and the fins 30 in sequence, so that the heat sink 100 effectively dissipates heat for the heat source.
[0044] The base 10 includes a front side 11, a back side 12 and an outer peripheral surface 13, wherein the front side 11 and the back side 12 are arranged opposite to each other, and the outer peripheral surface 13 is connected between the front side 11 and the back side 12. The front side 12 of the base 10 is used for thermal contact with a heat source, and the inner connecting portion 20 extends from the back side 12 of the base 10. The base 10 can be a continuous and integrated plate-like structure, and the common base 10 is an axisymmetric structure and / or a centrosymmetric structure. For example, the base 10 is a regular hexagon, which is symmetrically arranged around the central axis O. However, in other embodiments, the base 10 can also be circular, square or other forms / shapes, and the present application does not specifically limit the form / shape of the base 10.
[0045] Each of the inner connecting parts 20 extends from the outer peripheral surface 13 of the base 10 toward the first direction H, the first direction H being the direction from the front surface 11 of the base 10 to the back surface 12, the inner connecting part 20 comprises an inner surface 21 and an outer surface 22 arranged opposite to each other, the inner surface 21 is closer to the back surface 12 of the base 10 than the outer surface 22, and the plurality of inner connecting parts 20 are arranged at intervals around the outer peripheral surface 13 of the base 10. The number of the plurality of inner connecting parts 20 is 6, the inner connecting parts 20 are continuous plate-like structures, the inner surface 21 and the outer surface 22 of the inner connecting parts 20 are roughly rectangular, and the plurality of inner connecting parts 20 are axially symmetrical structures as a whole. Of course, in other embodiments, the number, shape and setting position of the inner connecting parts 20 may also be other forms.
[0046] Each of the fins 30 extends from the corresponding inner connection portion 20 toward the second direction R, the second direction R being a direction from the inner surface 21 of the inner connection portion 20 to the outer surface 22, and the plurality of fins 30 are arranged at intervals around the outer peripheral surface 13 of the base 10. The number of the plurality of fins 30 is 12, the fins 30 are continuous plate-like structures, the main body of the fins 30 is roughly trapezoidal, and the plurality of fins 30 are overall axisymmetric structures; of course, in other embodiments, the number, shape, and arrangement position of the fins 30 may also be other forms.
[0047] In this embodiment, the heat dissipation fins 30 are respectively arranged at the two ends of each inner connection part 20 along the circumference of the base 10, that is, one inner connection part 20 is connected to two fins 30, which is better in manufacturing and heat dissipation effect. Of course, in other embodiments, one inner connection part 20 can also be connected to other numbers of fins 30, and the position of the fins 30 is not limited to the two ends of the inner connection part 20 along the circumference of the base 10, for example, the fins 30 can also be arranged at the upper and lower ends of the inner connection part 20.
[0048] The inner connection parts 20 can be evenly distributed on the outer peripheral surface 13 of the base 10, and accordingly, the plurality of fins 30 can also be evenly distributed around the outer peripheral surface 13 of the base 10. This can give full play to the connection function of the inner connection parts 20, so that the heat sink 100 has a uniform heat dissipation effect in all directions.
[0049] In some embodiments, the angle between the reverse surface 12 of the base 10 and the inner surface 21 of the inner connecting portion 20 is 80°-100°; and preferably, the angle between the reverse surface 12 of the base 10 and the inner surface 21 of the inner connecting portion 20 can be set to 90°, that is, the main body of the inner connecting portion 20 is perpendicular to the base 10. At this time, the first direction H is the direction perpendicularly pointing from the front surface 11 of the base 10 to the reverse surface 12; that is, the thickness direction of the base 10.
[0050] In some embodiments, the angle between the outer surface 22 of the inner connecting portion 20 and the fin 30 is 70°-110°. Moreover, preferably, the second direction can be set as the radial direction of the base 10, that is, the fin 30 extends along a direction parallel to the center line 0 of the base 10 to the fin bending edge 23, and the bending edge 23 is usually the two side edges of the inner connecting portion 20.
[0051] In some embodiments, the thickness of the base 10, the inner connecting part 20 and the fin 30 may be the same, and the thickness of the base 10, the inner connecting part 20 and the fin 30 may be set to a smaller value, so that the base 10, the inner connecting part 20 and the fin 30 are all in the shape of thin sheets, thereby making the heat sink 100 lighter. For example, the thickness of the base 10 is less than 2 mm, the thickness of the inner connecting part 20 is less than 2 mm, and the thickness of the fin 30 is less than 2 mm. Even better, the thickness of the base 10, the thickness of the inner connecting part 20, and the thickness of the fin 30 may be set to be less than 1 mm, the thickness of the inner connecting part 20 is less than 1 mm, and the thickness of the fin 30 is less than 1 mm.
[0052] Figure 4 for Figure 1 The structure schematic diagram of the heat sink 100 in the first state during the manufacturing process is shown; Figure 5 for Figure 1 The structure of the heat sink 100 in the second state during the manufacturing process is shown.
[0053] In the process of manufacturing the heat sink 100, as Figure 4 As shown, it is usually necessary to first provide a thinner metal heat sink 70, such as a heat sink aluminum plate. Figure 5 As shown in FIG. 1 , a split hole 80 is formed on the metal heat sink 70, and the split hole 80 can separate the metal heat sink 70. Finally, as shown in FIG. Figure 1As shown, the metal heat sink 70 is bent along the dividing hole 80, and the parts of the metal heat sink 70 are respectively formed into the base 10, the inner connecting part 20 and the fin 30. The process is simple, convenient and flexible to operate, does not require mold opening, and is low in cost.
[0054] Figure 6 A schematic structural diagram of a heat sink 100 provided in a second embodiment of the present application; Figure 7 for Figure 6 A top view of the heat sink 100 is shown; Figure 8 for Figure 6 A is a partial enlarged view of the heat sink 100 shown.
[0055] like Figure 6-8 As shown, the structure of the heat sink 100 of the second embodiment is similar to that of the heat sink 100 of the first embodiment, and the same features will not be repeated here. Only the differences will be described in detail below.
[0056] In the first embodiment, the base 10 of the heat sink 100 is a complete thin plate-like structure. In the second embodiment, the base 10 of the heat sink 100 includes a plurality of sub-bases 15, and the plurality of sub-bases 15 are arranged at intervals from each other. In addition, the number of the plurality of sub-bases 15 is the same as the number of the plurality of internal connecting parts 20. For example, the number of the sub-bases 15 and the number of the internal connecting parts 20 are both 12, and the plurality of sub-bases 15 and the plurality of internal connecting parts 20 are arranged in a one-to-one correspondence. Of course, in other embodiments, the number of the sub-bases 15 and the number of the internal connecting parts 20 may also be other values.
[0057] In addition, in the second embodiment, a spacing hole 16 is disposed in the middle of the base 10 . The spacing hole 16 is designed mainly to avoid interference between the sub-substrates 15 due to errors during the bending process of forming the heat sink 100 .
[0058] The plurality of fins 30 include a head fin 31, a plurality of middle fins 32 and a tail fin 33. The head fin 31 and the tail fin 33 are arranged adjacent to each other. The plurality of middle fins 32 are distributed between the head fin 31 and the tail fin 33 along the circumference of the base 10. Specifically, one inner connecting portion 20 is connected to two corresponding middle fins 32, and the inner connecting portion 20 is connected to the inner ends of the two corresponding middle fins 32. In addition, the heat sink 100 further includes a plurality of outer connecting portions 40, and the adjacent middle fins 32 connected to different inner connecting portions 20 are connected together through the outer connecting portions 40, and the outer connecting portions 40 are connected to the outer ends of the middle fins 32. The middle fins 32 are connected between the head fin 31 and the tail fin 33 through the corresponding inner connecting portions 20 and the outer connecting portions 40.
[0059] An inner vent hole 26 is disposed in the middle of the inner connection portion 20 , and an outer vent hole 46 is disposed in the middle of the outer connection portion 40 . The inner vent hole 26 and the outer vent hole 47 can further improve the heat dissipation performance of the heat sink 100 .
[0060] In some embodiments, one of the head fin 31 and the tail fin 33 has a snap-in portion 310 bent from the main body, and the other has a snap-in groove 330. The snap-in portion 310 is snapped into the snap-in groove 330, so that the head fin 31 and the tail fin 33 are connected to each other through the snap-in portion 310 and the snap-in groove 330, and all the fins 30 form a closed structure to ultimately achieve the fixation and shaping of the multiple fins 30.
[0061] Fig. 9 for Figure 6 The schematic diagram of the structure of the heat sink 100 in the first state during the manufacturing process shows only a part of the structure; Fig.10 for Figure 6 The front view of the heat sink 100 in the second state during the manufacturing process is shown, and only part of the structure is shown; Fig.11 for Figure 6 The heat sink 100 is shown as a rear view in a second state during the manufacturing process, showing only a portion of the structure.
[0062] In the process of manufacturing the heat sink 100 of the second embodiment, as shown in FIG. Fig. 9 As shown, it is usually necessary to first punch out a metal heat sink 70 of a specific shape, the metal heat sink 70 has a plurality of sub-substrates 15, and is formed with split holes 80, which can split the 70 parts. Then, as Figure 10-11 As shown, the metal heat sink 70 is bent along the dividing hole 80, and the parts of the metal heat sink 70 are respectively formed into a sub-base 15, an inner connecting part 20, a fin 30 and an outer connecting part 40. The inner connecting part 20 is formed with an inner vent 26 by bending, and the outer vent 46 is formed on the outer connecting part 40. Finally, as shown in FIG. Figure 6 As shown, the entire structure is stretched and bent, the head fin 31 and the tail fin 33 are arranged adjacent to each other, and the clamping portion 310 is clamped into the clamping groove 330 to fix the plurality of fins 30. The process is simple, convenient, flexible, does not require mold opening, and is low in cost.
[0063] The embodiment of the present application also provides a vehicle lamp, which may include the radiator 100 described in any of the above embodiments. The radiator 100 can dissipate heat for the heat source in the vehicle lamp, and common heat sources in the vehicle lamp include light sources, switch tubes, etc. It is worth noting that the vehicle lamp referred to in the present application may include headlights in motor vehicles, such as low beam lights and high beam lights; it may also include various signal lights for signal indication, such as daytime running lights, turn signals, position lights, central high-mounted brake lights, tail brake lights, etc.; it may also include interior lights, such as atmosphere lights, indicator lights, reading lights, etc.
[0064] An embodiment of the present application further provides a motor vehicle, which may include the radiator or the lamp described in any one of the above embodiments.
[0065] Although the present application is described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred embodiments of the present application and should not be construed as limiting the present application. The size ratios in the accompanying drawings are merely illustrative and should not be construed as limiting the present application.
[0066] Although some embodiments of the overall concept of the present application have been shown and described, those skilled in the art will understand that the present application may include more other equivalent embodiments without departing from the overall inventive concept of the present application, and the protection scope of the present application is defined by the claims.
Claims
1. A heat sink (100), characterized in that: include: A base (10) comprising a front surface (11), a back surface (12) and an outer peripheral surface (13), wherein the front surface and the back surface are arranged opposite to each other, and the outer peripheral surface is connected between the front surface and the back surface; A plurality of inner connecting parts (20), each of the inner connecting parts extending from the outer peripheral surface of the base toward a first direction (H), the first direction being a direction from the front side of the base toward the back side, the inner connecting part comprising an inner surface (21) and an outer surface (22) arranged opposite to each other, the inner surface being closer to the back side of the base than the outer surface, and the plurality of inner connecting parts being arranged at intervals around the outer peripheral surface of the base; as well as A plurality of fins (30), each of the fins extending from the corresponding inner connecting portion toward a second direction (R), the second direction being a direction pointing from the inner surface of the inner connecting portion to the outer surface, and the plurality of fins being spaced apart around the outer peripheral surface of the base.
2. The heat sink according to claim 1, wherein: The front surface of the base is used for thermally contacting a heat source, and the heat sink is used for dissipating heat from the heat source.
3. The heat sink according to claim 1, wherein: The fins are respectively arranged at two ends of each of the inner connecting parts along the circumference of the base; The inner connection parts are evenly distributed on the outer peripheral surface of the base, and the plurality of fins are evenly distributed around the outer peripheral surface of the base.
4. The heat sink according to claim 3, wherein: The base is an axisymmetric structure, and the plurality of inner connecting parts are an axisymmetric structure; The base is a centrally symmetrical structure.
5. The heat sink according to claim 1, wherein: The angle between the reverse surface of the base and the inner surface of the inner connecting portion is 80°-100°, and the first direction is a direction perpendicularly pointing from the front surface of the base to the reverse surface; The included angle between the outer surface of the inner connecting portion and the fin is 70°-110°, and the second direction is the radial direction of the base.
6. The heat sink according to claim 1, wherein: The base, the inner connecting portion and the fin have the same thickness; The thickness of the base is less than 2 mm, the thickness of the inner connecting portion is less than 2 mm, and the thickness of the fin is less than 2 mm.
7. The heat sink according to claim 1, wherein: The thickness of the base is less than 1 mm, the thickness of the inner connecting portion is less than 1 mm, and the thickness of the fin is less than 1 mm.
8. The heat sink according to claim 1, wherein: The radiator is an integral component formed by stamping and bending a metal plate; The inner connecting portion is bent from the base portion, and the fin is bent from the inner connecting portion.
9. The heat sink according to any one of claims 1 to 8, wherein: The base is a continuous plate-like structure, the inner connecting portion is a continuous plate-like structure, and the fin is a continuous plate-like structure.
10. The heat sink according to any one of claims 1 to 8, wherein: The base (10) comprises a plurality of sub-base plates (15), the plurality of sub-base plates are arranged at intervals from each other, and the plurality of sub-base plates and the plurality of internal connection parts (20) are arranged in a one-to-one correspondence; A spacing hole (16) is provided in the middle of the base, and an inner ventilation hole (26) is provided in the middle of the inner connecting portion.
11. The heat sink according to claim 10, wherein: The plurality of fins (30) include a head fin (31), a plurality of middle fins (32) and a tail fin (33), the head fin and the tail fin being arranged adjacent to each other, and the plurality of middle fins being distributed between the head fin and the tail fin along the circumference of the base; The middle fin is connected between the head fin and the tail fin through the inner connecting portion.
12. The heat sink according to claim 11, wherein: One of the head fin and the tail fin has a clamping portion (310) bent from a main body, and the other has a clamping groove (330), wherein the clamping portion is clamped into the clamping groove to achieve fixation of the plurality of fins.
13. The heat sink according to claim 11, wherein: The heat sink further comprises a plurality of external connection parts (40), and adjacent intermediate fins connected to different internal connection parts are connected together via the external connection parts, the external connection parts are connected to the outer ends of the intermediate fins, and the middle parts of the external connection parts are provided with external ventilation holes (46).
14. A vehicle lamp, characterized in that: The vehicle lamp comprises a heat sink according to any one of claims 1-13.
15. A motor vehicle, characterized in that: The motor vehicle comprises a radiator according to any one of claims 1 to 13 or a lamp according to claim 14.