CN108811196B - New energy automobile PTC heater multi-core shared radiating fin and manufacturing method thereof - Google Patents
New energy automobile PTC heater multi-core shared radiating fin and manufacturing method thereof Download PDFInfo
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- CN108811196B CN108811196B CN201810744449.7A CN201810744449A CN108811196B CN 108811196 B CN108811196 B CN 108811196B CN 201810744449 A CN201810744449 A CN 201810744449A CN 108811196 B CN108811196 B CN 108811196B
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- ptc heater
- flanging
- energy automobile
- new energy
- rectangular pyramid
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000007663 fining method Methods 0.000 title description 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 23
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 229910000553 6063 aluminium alloy Inorganic materials 0.000 claims description 3
- 230000000750 progressive effect Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Heating (AREA)
Abstract
According to the multi-core shared radiating fin of the PTC heater of the new energy automobile and the manufacturing method thereof, a plurality of long and narrow through grooves are formed in the rectangular metal sheet, one side of the edge of each through groove is protruded to form a rectangular pyramid cylindrical flanging with an inclined angle towards the center of the through groove, the plurality of rectangular pyramid cylindrical flanging is sleeved on the plurality of PTC heater cores at the same time, and the installation of the plurality of core radiating fins can be completed at the same time through one assembly step; the height of the rectangular pyramid cylindrical flanging is larger than that of the flanging, so that a smooth circulation space is formed from the middle part to the top part between the adjacent cooling fins, a heat exchange channel capable of generating a chimney effect is formed, the heat dissipation speed and the heat dissipation efficiency generated by the PTC heater multi-core body are increased, the circulation space between the adjacent cooling fins from the middle part to the top is more concentrated and discharged, and the heating effect is effectively improved; the number of parts is reduced, the installation and connection steps are simplified, time and labor are saved, the working efficiency is improved, and the production cost is reduced.
Description
Technical Field
The invention relates to a multi-core shared radiating fin of a PTC heater of a new energy automobile and a manufacturing method thereof.
Background
The PTC heater is usually provided with a plurality of cores, installs a plurality of fin on each core respectively in order to improve the heating effect, and fin quantity is more on each core, and each fin on the many cores all need be produced semi-manufactured goods through processes such as punching the unloading, punching press bending respectively, and the rethread welds, the riveting is connected to each core, perhaps folding combination connects into various shapes such as wave and again with every core fixed mounting combination, and part quantity is numerous, and the installation connection step is loaded down with trivial details, and single process highly repeated easily produces visual fatigue, and is consuming time and consuming many, and manufacturing cost is high, and work efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing the multi-core shared radiating fin of the PTC heater of the new energy automobile and the manufacturing method thereof, wherein the radiating fin reduces the number of parts, simplifies the installation and connection steps, saves time and labor, improves the working efficiency and reduces the production cost.
The invention relates to a new energy automobile PTC heater multicore shared radiating fin, which is characterized in that: the PTC heater comprises a rectangular metal sheet, wherein a plurality of long and narrow penetrating grooves which are uniformly arranged and mutually parallel and can be penetrated by a PTC heater core body are formed in the rectangular metal sheet, the edge of each penetrating groove is provided with a turned edge which protrudes to one side of the metal sheet, and the turned edge is provided with an inclined angle which is close to the center of the penetrating groove, so that the turned edge forms a rectangular pyramid cylindrical turned edge, the size of an inner groove opening at the minimum position of the top of each rectangular pyramid cylindrical turned edge is smaller than the external size of the PTC heater core body, and the size of an inner groove opening at the maximum position of the root of each rectangular pyramid cylindrical turned edge is larger than the size of an outer groove opening at the minimum position of the top of the rectangular pyramid cylindrical turned edge and the external size of the PTC heater core body; the two ends of the rectangular metal sheet are provided with folds, the folding direction is consistent with the protruding direction of the rectangular pyramid cylindrical folds, and the height of the rectangular pyramid cylindrical folds is larger than that of the folds;
three long and narrow penetrating grooves which are uniformly arranged and parallel to each other and can be used for the PTC heater core body to penetrate through are formed in the metal sheet;
The height of the rectangular pyramid cylindrical flanging is 2 times smaller than the height of the flanging and 1.5 times larger than the height of the flanging;
The thickness of the rectangular pyramid cylindrical flanging gradually reduces from the root to the top;
the two ends of the folded edge are provided with bevel angles;
The sheet metal material is 6063 aluminum;
the invention also relates to a manufacturing method of the multi-core common radiating fin applicable to the PTC heater of the new energy automobile, which is characterized in that: the method comprises the following steps:
Firstly, punching and shearing a blanking metal sheet plate according to the structural space and design requirements of a PTC heater of a new energy automobile;
secondly, calculating punching, flanging and deep drawing extension sizes according to the external dimensions of the PTC heater core body;
Thirdly, performing process design according to the structural space and design requirement of the PTC heater of the energy automobile and the calculation result of the second step of the outer dimension of the PTC heater core body, and manufacturing a die;
Fourthly, pre-punching a positioning process hole and a flanging preparation groove on the metal sheet;
fifthly, stamping, deep drawing and forming a rectangular pyramid cylindrical flanging;
sixthly, flanging;
The fourth step of pre-punching process, the fifth step of deep drawing process and the sixth step of flanging process are formed by one-step punching through a same progressive die with a plurality of layers of die cores;
the fourth step of pre-punching and the fifth step of deep drawing and forming are respectively performed by punching and deep drawing by two auxiliary dies, and the sixth step of flanging is performed by a bending machine.
According to the multi-core shared radiating fin of the PTC heater of the new energy automobile and the manufacturing method thereof, a plurality of long and narrow penetrating grooves which are uniformly arranged and parallel to each other are arranged on the metal sheet and are sleeved on the cores of the PTC heater at the same time, and the installation of the radiating fins of the cores can be completed at the same time through one assembly step; the height of the rectangular pyramid cylindrical flanging is larger than that of the flanging, so that a smooth circulation space is formed from the middle part to the top part between the adjacent cooling fins, a heat exchange channel capable of generating a chimney effect is formed, the heat dissipation speed and the heat dissipation efficiency generated by the PTC heater multi-core body are increased, the circulation space between the adjacent cooling fins from the middle part to the top is more concentrated and discharged, and the heating effect is effectively improved; the number of parts is reduced, the installation and connection steps are simplified, time and labor are saved, the working efficiency is improved, and the production cost is reduced.
Drawings
Fig. 1 is a schematic diagram of a planar structure of a cooling fin shared by multiple cores of a PTC heater for a new energy vehicle according to an embodiment of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a rear view of FIG. 1;
FIG. 5 is a cross-sectional view of section A-A of FIG. 1;
FIG. 6 is a cross-sectional view of B-B of FIG. 1;
Fig. 7 is a schematic plan view of a new energy automobile PTC heater according to an embodiment of the present invention, in which multiple cores of the PTC heater share a heat sink and are simultaneously clipped onto P cores of the TC heaters;
FIG. 8 is a top view of FIG. 7;
Fig. 9 is a schematic plan view of a method for manufacturing a multi-core common fin of a PTC heater for a new energy vehicle according to an embodiment of the present invention
Fig. 10 is a schematic plan view of a fourth step of manufacturing a multi-core common fin for a PTC heater for a new energy vehicle according to an embodiment of the present invention
Fig. 11 is a schematic plan view of a manufacturing method of a multi-core common radiating fin of a PTC heater for a new energy vehicle according to an embodiment of the present invention after all the steps are completed.
Detailed Description
As shown in the figure, the novel energy automobile PTC heater multicore body sharing fin comprises a rectangular metal sheet 1, wherein a plurality of long and narrow through grooves 5 which are uniformly arranged and parallel to each other and can be used for the PTC heater cores to pass through are formed in the rectangular metal sheet 1, the fin is sleeved on the PTC heater cores through the long and narrow through grooves at the same time, the installation of the core fins can be completed at the same time through one assembly step, the number of parts is small, the installation and connection steps are simplified, the time and labor are saved, the working efficiency is improved, and the production cost is reduced.
The edge of each through groove 5 is provided with a turned edge protruding to one side of the metal sheet, and the turned edges are provided with inclined angles approaching to the center of the through groove, so that the turned edges form a rectangular pyramid cylindrical turned edge 2, the size of an inner groove opening at the minimum position of the top of each rectangular pyramid cylindrical turned edge 2 is smaller than the external size of the PTC heater core 6, and the size of an inner groove opening at the maximum position of the root of each rectangular pyramid cylindrical turned edge 2 is larger than the size of an outer groove opening at the minimum position of the top of the rectangular pyramid cylindrical turned edge 2 and the external size of the PTC heater core 6; when the radiating fins are sleeved on the cores of the PTC heaters through the long and narrow through grooves, the tops of the rectangular pyramid cylindrical flanges 2 are matched with adjacent radiating fins to limit.
And heat conducting adhesive layers can be arranged on the inner side surface and the outer side surface of each rectangular pyramid cylindrical flanging 2, and the space between the outer side surface of each rectangular pyramid cylindrical flanging 2 and the inner side surface of the adjacent rectangular pyramid cylindrical flanging 2, and the space between the inner side surface of each rectangular pyramid cylindrical flanging 2 and the PTC heater core body are filled with the heat conducting adhesive, so that the heating effect is further improved.
The two ends of the rectangular metal sheet 1 are provided with the folded edges 3, the direction of the folded edges 3 is consistent with the protruding direction of the rectangular pyramid cylindrical folded edges 2, and the height of the rectangular pyramid cylindrical folded edges 2 is larger than that of the folded edges 3, so that smooth circulation space is formed from the middle part to the top part between adjacent radiating fins, a heat exchange channel capable of generating a chimney effect is formed, the heat dissipation speed and the dissipation efficiency of the PTC heater multi-core body are increased, the circulation space from the middle part to the top part between the adjacent radiating fins is more concentrated to be discharged, and the heating effect is effectively improved.
Three long and narrow through grooves 5 which are uniformly arranged and parallel to each other and can be penetrated by the PTC heater core bodies 6 are arranged on the metal sheet 1, the radiating fin installation procedure of the three core bodies 6 can be completed simultaneously in one assembly step, the number of parts is reduced to 1/3, the installation and connection steps of 2/3 are simplified, and the working efficiency of 3 times is improved.
The height of the rectangular pyramid cylindrical flanging 2 is 2 times smaller than the height of the flanging and 1.5 times larger than the height of the flanging, and the heating effect reaches the optimal state.
Further, the thickness of the rectangular pyramid cylindrical flange 2 may be gradually reduced from the root portion to the top portion, so that the space between the inner side surface of the rectangular pyramid cylindrical flange 2 and the PTC heater core and the space between the adjacent fins are communicated as an integral heat exchange passage.
The two ends of the folded edge 3 are provided with bevel angles, so that guidance is further provided for the heat exchange channel, and the dangerous sharp end angles are avoided.
The metal sheet is 6063 aluminum, so that the weight is light, and the heat conduction efficiency is high.
The invention also relates to a manufacturing method of the multi-core common radiating fin applicable to the PTC heater of the new energy automobile, which is characterized in that: the method comprises the following steps:
Firstly, punching and shearing a blanking metal sheet plate according to the structural space and design requirements of a PTC heater of a new energy automobile;
secondly, calculating punching, flanging and deep drawing extension sizes according to the external dimensions of the PTC heater core body;
Thirdly, performing process design according to the structural space and design requirement of the PTC heater of the energy automobile and the calculation result of the second step of the outer dimension of the PTC heater core body, and manufacturing a die;
Fourthly, pre-punching a positioning process hole 7 and a flanging preparation groove 8 on the metal sheet, wherein the positioning process hole 7 prevents stress concentration at the corner of the rectangular pyramid cylindrical flanging, is convenient for positioning in the subsequent process step, and the flanging preparation groove is convenient for forming the rectangular pyramid cylindrical flanging in a subsequent stamping and deep drawing mode;
fifthly, stamping, deep drawing and forming a rectangular pyramid cylindrical flanging;
sixthly, flanging;
the fourth step of pre-punching process, the fifth step of deep drawing forming process and the sixth step of edge folding process can be formed by one-step punching of a progressive die with a plurality of die cores, and the method has the advantages of further shortening the production time, reducing the production process, but having large and heavy die volume and occupying more space for equipment.
The fourth step of pre-punching and the fifth step of deep drawing and forming can be respectively performed by punching, deep drawing and punching by two pairs of dies, and the sixth step of edge folding is performed by a bending machine, so that the advantage is that each die is small in size and light in weight, but two production processes are added.
According to the multi-core shared radiating fin of the PTC heater of the new energy automobile and the manufacturing method thereof, a plurality of long and narrow penetrating grooves which are uniformly arranged and parallel to each other are arranged on the metal sheet and are sleeved on the cores of the PTC heater at the same time, and the installation of the radiating fins of the cores can be completed at the same time through one assembly step; the height of the rectangular pyramid cylindrical flanging is larger than that of the flanging, so that a smooth circulation space is formed from the middle part to the top part between the adjacent cooling fins, a heat exchange channel capable of generating a chimney effect is formed, the heat dissipation speed and the heat dissipation efficiency generated by the PTC heater multi-core body are increased, the circulation space between the adjacent cooling fins from the middle part to the top is more concentrated and discharged, and the heating effect is effectively improved; the number of parts is reduced, the installation and connection steps are simplified, time and labor are saved, the working efficiency is improved, and the production cost is reduced.
Claims (7)
1. A new energy automobile PTC heater multicore sharing fin, its characterized in that: the PTC heater comprises a rectangular metal sheet, wherein a plurality of long and narrow penetrating grooves which are uniformly arranged and mutually parallel and can be penetrated by a PTC heater core body are formed in the rectangular metal sheet, the edge of each penetrating groove is provided with a turned edge which protrudes to one side of the metal sheet, and the turned edge is provided with an inclined angle which is close to the center of the penetrating groove, so that the turned edge forms a rectangular pyramid cylindrical turned edge, the size of an inner groove opening at the minimum position of the top of each rectangular pyramid cylindrical turned edge is smaller than the external size of the PTC heater core body, and the size of an inner groove opening at the maximum position of the root of each rectangular pyramid cylindrical turned edge is larger than the size of an outer groove opening at the minimum position of the top of the rectangular pyramid cylindrical turned edge and the external size of the PTC heater core body; the two ends of the rectangular metal sheet are provided with folds, the folding direction is consistent with the protruding direction of the rectangular pyramid cylindrical folds, the height of the rectangular pyramid cylindrical folds is larger than that of the folds, so that a smooth circulation space is formed from the middle part to the top part between the adjacent cooling fins, and a heat exchange channel capable of generating a chimney effect is formed; the thickness of the rectangular pyramid cylindrical flanging gradually reduces from the root to the top.
2. The new energy automobile PTC heater multicore shared fin according to claim 1, wherein: the metal sheet is provided with three long and narrow penetrating grooves which are uniformly arranged and parallel to each other and can be penetrated by the PTC heater core body.
3. The new energy automobile PTC heater multicore shared fin according to claim 1, wherein: the two ends of the folded edge are provided with bevel angles.
4. The new energy automobile PTC heater multicore shared fin according to claim 1, wherein: the sheet metal material is 6063 aluminum.
5. A manufacturing method suitable for manufacturing the multi-core common radiating fin of the PTC heater for the new energy automobile according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
Firstly, punching and shearing a blanking metal sheet plate according to the structural space and design requirements of a PTC heater of a new energy automobile;
secondly, calculating punching, flanging and deep drawing extension sizes according to the external dimensions of the PTC heater core body;
Thirdly, performing process design according to the structural space and design requirement of the PTC heater of the energy automobile and the calculation result of the second step of the outer dimension of the PTC heater core body, and manufacturing a die;
Fourthly, pre-punching a positioning process hole and a flanging preparation groove on the metal sheet;
fifthly, stamping, deep drawing and forming a rectangular pyramid cylindrical flanging;
And sixthly, flanging.
6. The method for manufacturing the multi-core common radiating fin of the PTC heater of the new energy automobile according to claim 5, which is characterized in that: and the fourth step of pre-punching and the fifth step of deep drawing and forming and the sixth step of edge folding are performed through one-step punching and forming by the same progressive die with a plurality of layers of die cores.
7. The method for manufacturing the multi-core common radiating fin of the PTC heater of the new energy automobile according to claim 5, which is characterized in that: the fourth step of pre-punching and the fifth step of deep drawing and forming are respectively performed by punching and deep drawing by two auxiliary dies, and the sixth step of flanging is performed by a bending machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744449.7A CN108811196B (en) | 2018-07-09 | 2018-07-09 | New energy automobile PTC heater multi-core shared radiating fin and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744449.7A CN108811196B (en) | 2018-07-09 | 2018-07-09 | New energy automobile PTC heater multi-core shared radiating fin and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN108811196A CN108811196A (en) | 2018-11-13 |
| CN108811196B true CN108811196B (en) | 2024-06-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109604940B (en) * | 2018-11-20 | 2021-01-22 | 中国航发贵州黎阳航空动力有限公司 | Processing method of skirt edge |
| CN109830588A (en) * | 2019-01-24 | 2019-05-31 | 安徽盛烨电子有限公司 | A kind of lead frame of LED support, LED support manufacturing process and LED support |
| CN110193553B (en) * | 2019-03-12 | 2020-12-15 | 苏州炳荣精密五金制品有限公司 | Punch forming process for copper radiating fins |
| CN110918773A (en) * | 2019-11-05 | 2020-03-27 | 合肥百恒设备模具有限公司 | Automobile plate stamping process |
| CN113503762B (en) * | 2021-07-30 | 2023-03-17 | 福建省江南冷却科技有限公司 | Assembly process of cooling core |
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| JP2004020174A (en) * | 2002-06-14 | 2004-01-22 | Union Metals Co Ltd | Flat radiating fin, heat exchanger using it, and its manufacturing method |
| CN201463690U (en) * | 2009-05-27 | 2010-05-12 | 浙江银轮机械股份有限公司 | Mainboard for radiator |
| CN104979308A (en) * | 2015-07-14 | 2015-10-14 | 哈尔滨精方电力设备科技有限公司 | High-efficiency cooling sheet |
| CN105823364A (en) * | 2016-05-04 | 2016-08-03 | 无锡海特精密模具有限公司 | Radiating fin and production process thereof |
| CN208337901U (en) * | 2018-07-09 | 2019-01-04 | 江苏众众电热科技有限公司 | A kind of new-energy automobile ptc heater multicore body common fins |
-
2018
- 2018-07-09 CN CN201810744449.7A patent/CN108811196B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004020174A (en) * | 2002-06-14 | 2004-01-22 | Union Metals Co Ltd | Flat radiating fin, heat exchanger using it, and its manufacturing method |
| CN201463690U (en) * | 2009-05-27 | 2010-05-12 | 浙江银轮机械股份有限公司 | Mainboard for radiator |
| CN104979308A (en) * | 2015-07-14 | 2015-10-14 | 哈尔滨精方电力设备科技有限公司 | High-efficiency cooling sheet |
| CN105823364A (en) * | 2016-05-04 | 2016-08-03 | 无锡海特精密模具有限公司 | Radiating fin and production process thereof |
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