CN113857798B - Manufacturing method of radiator - Google Patents
Manufacturing method of radiator Download PDFInfo
- Publication number
- CN113857798B CN113857798B CN202111307498.2A CN202111307498A CN113857798B CN 113857798 B CN113857798 B CN 113857798B CN 202111307498 A CN202111307498 A CN 202111307498A CN 113857798 B CN113857798 B CN 113857798B
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- bending
- plate
- pipeline
- composite board
- bending line
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000005452 bending Methods 0.000 claims abstract description 99
- 238000001816 cooling Methods 0.000 claims abstract description 64
- 239000002131 composite material Substances 0.000 claims abstract description 36
- 238000007664 blowing Methods 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000007788 roughening Methods 0.000 claims abstract description 5
- 238000005098 hot rolling Methods 0.000 claims abstract description 4
- 238000007639 printing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 description 28
- 239000007788 liquid Substances 0.000 description 23
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention provides a manufacturing method of a radiator, which comprises the following steps: firstly, providing a first plate and a second plate, roughening a single surface of the first plate and the second plate, and printing a rolling inhibitor on the roughened surface of the first plate or the roughened surface of the second plate; step two, attaching and aligning the roughened surfaces, then jointing along the edges, heating and then performing hot rolling processing to form a composite plate; step three, blowing up the composite board; determining a bending line on the surface of the composite board on one side relative to the pipeline contour, and stamping the bending line to the surface of the pipeline contour to form a bulge; fifthly, bending by taking the bending line as a reference; after bending, performing secondary blowing on the composite board; and step seven, filling cooling medium into the cooling pipeline and sealing the cooling pipeline. Bending treatment is carried out after the bulge is punched, so that the pipeline at the bending position is prevented from being wrinkled and deformed or cracked, and the yield of the bent radiator is improved.
Description
Technical Field
The invention relates to the technical field of radiators, and particularly provides a manufacturing method of a radiator.
Background
Along with the increasing of the heat dissipation requirement of the new energy field and the increasing of the heat dissipation requirement, the liquid cooling heat dissipation becomes the mainstream of the new energy heat dissipation field, while the conventional heat sink is generally of a flat plate structure, a liquid cooling flow path can only flow in a flat plate, so that the temperature distribution uniformity of a heating device is poor, and along with the increasing of the temperature uniformity requirement of the heating device, the scheme of bending the heat sink is generated; the bent radiator is formed by stamping, bending or other modes relative to the flat plate radiator to form at least two side surfaces, or a box body structure or a box body local structure; and the at least two crossed side surfaces of the bent radiator are provided with communicated liquid cooling flow paths.
The bent radiator is formed by combining two substrates through flat plate blowing or flat plate brazing and then is formed through stamping or bending; in the prior art, when the pipe is formed by punching or bending, the fold of the bent pipeline is easy to shrink, and the cooling medium cannot circulate, so that a manufacturing method of the radiator is needed, and when the pipe is bent, the fold of the bent pipeline is prevented from shrinking or breaking.
Disclosure of Invention
The invention aims to provide a manufacturing method of a radiator, which ensures that a pipeline at a bending part is not wrinkled, deformed or cracked during bending by performing bending treatment after stamping and bulging so as to improve the yield of the bent radiator.
The invention provides a manufacturing method of a radiator, which comprises the following steps:
step one, providing a first plate and a second plate, roughening one surfaces of the first plate and the second plate, and printing a rolling inhibitor on the roughened surface of the first plate or the roughened surface of the second plate;
secondly, attaching and aligning the roughened surface of the first plate with the roughened surface of the second plate, and then jointing along the edge; heating the first plate and the second plate which are combined together, and then carrying out hot rolling processing to form a composite plate;
thirdly, performing primary blowing on the composite board to enable the printed rolling inhibitor part to expand and bulge towards one surface to form a pipeline outline;
determining a bending line on the surface of the composite board on one side relative to the pipeline contour, and stamping the bending line to the surface of the pipeline contour to form a bulge;
fifthly, bending by taking the bending line as a reference;
after bending, performing secondary blowing on the composite board to enable the composite board to be blown and molded to form a cooling pipeline;
and step seven, filling a cooling medium into the cooling pipeline and sealing the cooling pipeline.
Preferably, the depth of the bulge punched from the bending line to the pipeline contour is d, the bending radius is r, the maximum length of the bulge in the direction perpendicular to the bending line is L, and L is more than or equal to 1/2 pi (r + d).
Preferably, the length of the bulge along the bending line direction is w, the length of the cooling pipeline along the bending line direction is z, w is greater than or equal to z, and the cooling pipeline is arranged inside the bulge along the bending line direction.
Preferably, the length of the composite board along the bending line direction is e, wherein e is greater than w, and a gap is reserved between the two ends of the bulge along the bending line direction and the two ends of the composite board along the bending line direction.
Preferably, the thickness s of the composite board ranges from 0.8 mm to 3mm, and the height h of the pipeline ranges from 0.5 mm to 5mm.
Further, the primary inflation adopts air inflation, the secondary inflation adopts water inflation or both the primary inflation and the secondary inflation adopt water inflation.
Further, during primary blowing and secondary blowing, a pressing piece is arranged on the surface of the composite board on one side relative to the pipeline contour.
Furthermore, the joining mode in the second step is riveting or welding.
Further, the bending angle in the fifth step is 90 degrees, and after the bending is finished, the bending calibration adjustment is performed to achieve the 90-degree bending angle.
Further, a bending machine is adopted for bending in the fifth step, the bending machine comprises an upper die and a lower die, the surface of the composite board, which is provided with the right pipeline outline, is arranged opposite to the lower die, and an avoidance cavity for avoiding the bulge is arranged on the lower die; the length of the upper die can be adjusted, the lower die comprises a left lower die and a right lower die which can be adjusted in the bending line direction, the length of the upper die is adjusted according to a preset bending radius before bending, the relative distance K between the left lower die and the right lower die is adjusted according to the length w of the bulge in the bending line direction, the avoiding cavity is formed, and e is larger than K and larger than w.
The manufacturing method of the radiator provided by the invention can bring at least one of the following beneficial effects:
1. the invention provides a manufacturing method of a radiator, which ensures that a pipeline at a bending part is not wrinkled, deformed or cracked by performing bending treatment after stamping and bulging, and further improves the yield of the bent radiator.
2. According to the invention, the composite board is bent to 90 degrees, so that the fitting degree of the radiator and the heating device is improved, and the radiating efficiency is further improved.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a flow chart of a method of manufacturing a folded heat sink according to the present invention;
fig. 2 is a perspective view of a bent heat sink according to a second embodiment;
fig. 3 is another perspective view of the bent heat sink according to the second embodiment;
fig. 4 is a side view of a bent heat sink according to a second embodiment;
FIG. 5 is a cross-sectional view of a bent heat sink according to a second embodiment
Fig. 6 is a plan view of the bent heat sink according to the second embodiment.
Fig. 7 is a sectional view taken along the plane B-B of fig. 6.
Fig. 8 is an enlarged view of fig. 6 at C.
Fig. 9 is a perspective view of a bent heat sink according to a third embodiment.
Fig. 10 is another perspective view of the bent heat sink according to the third embodiment.
Fig. 11 is a plan-view developed view of the bent heat sink of the third embodiment.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings of the specification.
Referring to fig. 1, 3, 6 and 8, a method for manufacturing a heat sink according to an embodiment includes the steps of:
the method comprises the steps of firstly, providing a first plate and a second plate, roughening one surface of the first plate and the second plate, printing a rolling inhibitor on the roughened surface of the first plate or the roughened surface of the second plate, and effectively increasing the degree of adhesion of the rolling inhibitor and the plates through roughening treatment so as to ensure the stability of subsequent inflation.
Secondly, attaching and aligning the roughened surface of the first plate with the roughened surface of the second plate, and then jointing along the edges; heating the first plate and the second plate which are jointed together, and then carrying out hot rolling processing to form a composite plate; in the present embodiment, the joining method is a rivet connection or a welding connection, but in other embodiments, other joining methods may be used.
Thirdly, performing primary blowing on the composite board to enable the printed rolling inhibitor to expand and bulge towards one surface to form a pipeline outline; when in actual blowing, the pipe profile lower than the preset pipe height can be blown out by pre-blowing treatment or directly blown, molded and blown to the preset pipe height; the primary inflation can be air pressure inflation or water pressure inflation.
Determining a bending line on the surface of one side of the composite board opposite to the pipeline contour, stamping the surface of the pipeline contour on the bending line to form a bulge, wherein the stamping depth of the bulge from the bending line to the pipeline contour is d, the bending radius is r, the length of the bulge in the direction perpendicular to the bending line is L, the length of the bulge in the direction of the bending line is w, the length of the cooling pipeline in the direction of the bending line is z, the length of the composite board in the direction of the bending line is e, w is more than or equal to z, the cooling pipeline is arranged in the bulge in the direction of the bending line, e is more than w, intervals are reserved between the two ends of the bulge in the direction of the bending line and the two ends of the composite board in the direction of the bending line, L is more than or equal to 1/2 pi (r + d), the thickness s range of the composite board is 0.8-3mm, and the height h range of the pipeline is 0.5-5mm.
Fifthly, bending by using a bending machine as a reference to bend the composite plate by using a bending line, wherein the bending machine comprises an upper die and a lower die, the surface of the composite plate, which is provided with the right pipeline outline, is arranged opposite to the lower die, and an avoidance cavity for avoiding the bulge is arranged on the lower die so as to ensure that the bulge cannot be extruded during bending and cause the bulge to sink inwards; in this embodiment, the length of the upper die can be adjusted, the lower die comprises a left lower die and a right lower die which can be adjusted in the bending line direction, before bending, the length of the upper die is adjusted according to a preset bending radius, the relative distance K between the left lower die and the right lower die is adjusted according to the length w of the bulge in the bending line direction to form the avoidance cavity, and e is greater than K and greater than w; the angle of bending of this embodiment is 90, and the calibration of bending is adjusted in order to reach 90 degrees angle of bending after the completion of bending.
After the bending radiator is adjusted to a bending angle of 90 degrees, performing secondary blowing on the composite board to enable the composite board to be blown and molded to form a cooling pipeline, wherein in the embodiment, the secondary blowing adopts a hydraulic pressure expansion type, and in other embodiments, other blowing modes can be adopted; when carrying out secondary inflation, set up on the face of composite board relative pipeline profile one side and compress tightly the piece to the emergence that can not have the anti-protruding condition when guaranteeing secondary inflation.
And step seven, filling cooling medium into the cooling pipeline and sealing the cooling pipeline.
According to the manufacturing method of the radiator, the bending treatment is carried out after the bulge is punched, so that when the bending operation is carried out by reducing the bending radius, the pipeline at the bending position can be prevented from being wrinkled, deformed or cracked, and the yield of the bent radiator is improved.
The second embodiment provides a bent heat sink 100 manufactured by the manufacturing method of the heat sink described above, see fig. 2 to 8, including: a first cooling section 1, a second cooling section 2, and a transition section 3 connecting the first cooling section 1 and the second cooling section 2; the transition part 3 is the bulge described in the first embodiment.
The first cooling part 1 comprises a first plane 12 located inside the bent radiator 100, the second cooling part 2 comprises a second plane 22 located inside the bent radiator 100, and an included angle is formed between the first plane 12 and the second plane 22. In this embodiment, the angle between the first plane 12 and the second plane 22 is 90 degrees. In other embodiments, the bending angle of the heat sink is adjusted according to the shape of the heating device, so that the heat sink can be attached to the surface of the heating device. The inner side of the bent radiator of the embodiment is the side where the radiator is contacted with the heating device.
The first cooling portion 1 further includes a second plane 13 located outside the bent liquid-cooled plate 100 and a first cooling cavity 11 protruding outward from the second plane 13. The second cooling portion 2 further includes a fourth plane 23 located outside the bent liquid-cooled plate 100 and a second cooling cavity 21 protruding outward from the fourth plane 23.
The transition portion 3 includes a first curved portion 31 and a second curved portion 33, a transition cavity 32 is formed between the first curved portion 31 and the second curved portion 33, the transition cavity 32 connects the first cooling cavity 11 and the second cooling cavity 21, and the cooling medium flows through the first cooling cavity 11, the transition cavity 32, and the second cooling cavity 21.
The transition part 3 is sunken from the inboard outside of bending type liquid cooling board 100, makes the intersection line of first plane 12 and second plane 22 and transition part 3 non-intersect to can dodge the edges and corners of generating heat the device when using.
The first bending part 31 forms a concave groove 311 at the intersection of the first plane 12 and the second plane 22, which is concave towards the direction of the transition cavity 32, and the second bending part 33 forms a convex corresponding to the concave groove 311 towards the outer side of the bending type liquid cooling plate 100 compared with the upper surfaces of the first cooling cavity 11 and the second cooling cavity 21.
Referring to fig. 5 and 6, the cross section of the transition portion 3 is circular arc, and the length of the transition cavity 32 is greater than or equal to the lengths of the first cooling cavity 11 and the second cooling cavity 21 along the extending direction of the cross section. The first and second curved portions 31 and 33 are provided as concentric circular arcs, and the thickness of the transition cavity 32 is uniformly provided. The thickness of the transition cavity 32 is equal to or greater than the thickness of the first cooling cavity 11 and the second cooling cavity 21.
The transition portion 3 further includes a first connecting portion 34 and a second connecting portion 35 respectively located at two ends of the transition chamber 32 in the length direction. The first connecting portion 34 and the second connecting portion 35 are bent into a right angle, and two sides of the right angle extend to connect the first plane 12 and the second plane 22, respectively. The transition cavity 32, the first cooling cavity 11 and the second cooling cavity 21 of the present embodiment together form the cooling pipeline of the first embodiment.
The third embodiment provides a bent heat sink 200 manufactured by the manufacturing method of the heat sink, as shown in fig. 9 to 11, on the basis of the second embodiment, and includes a bottom plate 4, and a first side plate 5 and a second side plate 6 oppositely arranged on two sides of the bottom plate 4; the bottom plate 4 is provided with a third cooling cavity 41, the first side plate 5 is provided with a fourth cooling cavity 51 communicated with the third cooling cavity 41, and the second side plate 6 is provided with a fifth cooling cavity 61 communicated with the third cooling cavity 41; the third cooling chamber 41 comprises a liquid inlet chamber 411 and a liquid outlet chamber 412 which are communicated with each other, the fourth cooling chamber 51 is communicated with the liquid inlet chamber 411, and the fifth cooling chamber 61 is communicated with the liquid outlet chamber 412.
A third connecting part 7 and a fourth connecting part 8 are arranged at a bent part between the bottom plate 4 and the first side plate 5, and the third connecting part 7 comprises a third transition cavity communicated with a third cooling cavity 41 and a fourth cooling cavity 51; the fourth connecting part 8 comprises a fourth transition cavity which is communicated with the liquid inlet cavity 411 and the fourth cooling cavity 51; a fifth connecting portion 9 and a sixth connecting portion 10 are arranged at a bending position between the bottom plate 4 and the second side plate 6, the fifth connecting portion 9 includes a fifth transition cavity communicated with the third cooling cavity 41 and the fifth cooling cavity 61, and the sixth connecting portion 10 includes a sixth transition cavity communicated with the liquid outlet cavity 412 and the fifth cooling cavity 61. The third connecting portion 7, the fourth connecting portion 8, the fifth connecting portion 9 and the sixth connecting portion 10 of the present embodiment are all the bulges described in the first embodiment.
The bending radiator 200 further includes a protruding portion 41, a liquid inlet 421 communicated with the liquid inlet cavity 411 and a liquid outlet 422 communicated with the liquid outlet cavity 412 are arranged on one side of the protruding portion 42, the third transition cavity is located between the fourth transition cavity and the liquid inlet 411, a cooling medium in the liquid inlet cavity 411 enters the fourth cooling cavity 51 through the third transition cavity, a cooling medium in the fourth cooling cavity 51 returns to the liquid inlet cavity 411 through the fourth transition cavity and then enters the liquid outlet cavity 412, the fifth transition cavity is located between the liquid outlet 412 and the sixth transition cavity, a cooling medium in the liquid outlet cavity 412 enters the fifth cooling cavity 61 through the sixth transition cavity, a cooling medium in the fifth cooling cavity 61 returns to the liquid outlet cavity 412 through the fifth transition cavity and then reaches the liquid outlet 422, circulation of the cooling medium is achieved, and rapid heat dissipation of a heat generating device is achieved.
It should be noted that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention, as will be apparent to those skilled in the art. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (8)
1. A manufacturing method of a radiator is characterized by comprising the following steps:
firstly, providing a first plate and a second plate, roughening one surfaces of the first plate and the second plate, and printing a rolling inhibitor on the roughened surface of the first plate or the roughened surface of the second plate;
secondly, attaching and aligning the roughened surface of the first plate with the roughened surface of the second plate, and then jointing along the edges; heating the first plate and the second plate which are jointed together, and then carrying out hot rolling processing to form a composite plate;
thirdly, performing primary blowing on the composite board to enable the printed rolling inhibitor to expand and bulge towards one surface to form a pipeline outline;
determining a bending line on the surface of the composite board on one side relative to the pipeline contour, and stamping the bending line to the surface of the pipeline contour to form a bulge;
fifthly, bending by taking the bending line as a reference;
after bending, performing secondary blowing on the composite board to blow and form the composite board into a cooling pipeline;
step seven, filling a cooling medium into the cooling pipeline and sealing the cooling pipeline;
the depth of stamping the bulge from the bending line to the pipeline contour is d, the bending radius is r, the maximum length of the bulge in the direction perpendicular to the bending line is L, and the L is more than or equal to 1/2 pi (r + d); the length of the bulge along the bending line direction is w, the length of the cooling pipeline along the bending line direction is z, w is larger than or equal to z, and the cooling pipeline is arranged inside the bulge along the bending line direction.
2. The method of manufacturing a heat sink according to claim 1, wherein: the length of the composite board along the bending line is e, wherein e is greater than w, and intervals are reserved between the two ends of the bulges along the bending line and the two ends of the composite board along the bending line.
3. The method of manufacturing a heat sink according to claim 1, wherein: the thickness s of the composite board ranges from 0.8 mm to 3mm, and the height h of the cooling pipeline ranges from 0.5 mm to 5mm.
4. The method of manufacturing a heat sink according to claim 1, wherein: the primary inflation adopts air inflation, the secondary inflation adopts water inflation or both the primary inflation and the secondary inflation adopt water inflation.
5. The method of manufacturing a heat sink according to claim 1, wherein: and during primary blowing and secondary blowing, a pressing piece is arranged on the surface of the composite board on one side relative to the pipeline profile.
6. The method of manufacturing a heat sink according to claim 1, wherein: and the second step of joining is riveting or welding.
7. The method of manufacturing a heat sink according to claim 1, wherein: and the bending angle in the fifth step is 90 degrees, and after the bending is finished, the bending calibration adjustment is carried out so as to achieve the 90-degree bending angle.
8. The method of manufacturing a heat sink according to claim 1, wherein: and fifthly, bending by using a bending machine, wherein the bending machine comprises an upper die and a lower die, the surface of the composite board with the right pipeline outline is arranged opposite to the lower die, and an avoidance cavity for avoiding the bulge is arranged on the lower die.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111307498.2A CN113857798B (en) | 2021-11-05 | 2021-11-05 | Manufacturing method of radiator |
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|---|---|---|---|
| CN202111307498.2A CN113857798B (en) | 2021-11-05 | 2021-11-05 | Manufacturing method of radiator |
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| CN114593624A (en) * | 2022-03-31 | 2022-06-07 | 浙江嘉熙科技股份有限公司 | Inflation plate structure and application device thereof |
| WO2024031446A1 (en) * | 2022-08-10 | 2024-02-15 | 宁德时代新能源科技股份有限公司 | Thermal management component, manufacturing method therefor, battery, and electrical device |
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| CN113857798A (en) | 2021-12-31 |
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