CN220534749U - Quick heating device for composite material battery shell mold - Google Patents
Quick heating device for composite material battery shell mold Download PDFInfo
- Publication number
- CN220534749U CN220534749U CN202321499412.5U CN202321499412U CN220534749U CN 220534749 U CN220534749 U CN 220534749U CN 202321499412 U CN202321499412 U CN 202321499412U CN 220534749 U CN220534749 U CN 220534749U
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- CN
- China
- Prior art keywords
- electromagnetic induction
- induction coil
- die
- mold
- composite material
- Prior art date
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 66
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 63
- 229920001187 thermosetting polymer Polymers 0.000 claims description 12
- 239000002657 fibrous material Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 6
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 6
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920001169 thermoplastic Polymers 0.000 claims description 6
- 229920005992 thermoplastic resin Polymers 0.000 claims description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- 239000002344 surface layer Substances 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a rapid heating device for a composite material battery shell mold, which is characterized in that: the electromagnetic induction coil is coiled and formed on the surface of the die, the coiling and forming shape of the electromagnetic induction coil is close to or identical with the shape of the surface of the die to be heated, and the surface of the die is subjected to rapid electromagnetic heating under the condition that the electromagnetic induction coil is electrified; the rapid heating device of the composite material battery shell mold is reasonable in design, high in practicability and capable of rapidly heating the surface layer of the mold, so that the heating and cooling time of the mold is greatly saved, the production efficiency is effectively improved, and the device is convenient to produce and manufacture, low in cost and particularly suitable for production and manufacturing processes requiring large-scale, high efficiency and economy.
Description
Technical field:
the utility model relates to a rapid heating device of a die, in particular to a rapid heating device of a composite material battery shell die.
The background technology is as follows:
the composite battery pack shell product has wide application in new energy automobiles, and along with the continuous rising of the manufacturing cost of the whole automobile caused by the severe fluctuation of the price of the upstream raw materials of the new energy automobiles and the competition situation that the new energy automobile industry becomes increasingly white and hot, people hope to adopt a more efficient, energy-saving and environment-friendly forming process for manufacturing the battery pack shell and other automobile parts. Compared with the defects of long heating/cooling time, high energy consumption, low efficiency and the like of the traditional modes of electric heating, oil heating, steam heating and the like of a die, the electromagnetic heating is strong, extremely high in efficiency, low in energy consumption, free of waste gas and waste residues in the heating process, more efficient and environment-friendly, and is a molding heating mode which is particularly suitable for being applied to manufacturing processes of battery cladding bodies and other automobile parts which are required to be produced in a large-scale, efficient and economical way.
The Chinese patent is searched for an electromagnetic heating structure of a mold, publication No. CN111941776A, and the electromagnetic heating structure of the mold comprises: the metal coils are uniformly arranged in the female die core in a spiral manner, the metal coils are connected with a power supply, the power supply supplies alternating current to the metal coils, the metal coils generate an alternating magnetic field, and the magnetic field heats the die; the cooling waterways are uniformly distributed in the female mold core, cooling water is introduced into the cooling waterways to cool the product, and the electromagnetic heating structure of the mold provides a high constant-temperature molded product, so that the problem of appearance fiber floating of the product caused by insufficient molding temperature is effectively solved, and the product yield is improved; however, the mold structure has the advantages of complex manufacturing process, long period and high manufacturing cost, and the whole female mold core is heated integrally during heating, so that the heating energy consumption is high and the heating time is long.
The utility model comprises the following steps:
the utility model aims to provide the rapid heating device for the composite material battery shell body die, which has reasonable design and strong practicability, and can heat the surface layer of the die, thereby greatly saving the heating and cooling time of the die, being beneficial to improving the production efficiency, and being convenient to produce and manufacture and low in cost.
The technical scheme of the utility model is as follows:
a quick heating device of combined material battery shell body mould, its characterized in that: the electromagnetic induction coil is coiled and formed on the surface of the die, the coiling and forming shape of the electromagnetic induction coil is close to or identical with the shape of the surface of the die to be heated, and the surface of the die is rapidly and electromagnetically heated under the condition that the electromagnetic induction coil is electrified.
Preferably, the electromagnetic coil is movable relative to the mold to move the electromagnetic coil onto the mold surface when heating of the mold surface is desired and to move the mold surface when mold clamping is desired.
Preferably, the electromagnetic induction coil is coiled on the supporting frame, the electromagnetic induction coil is close to or in direct contact with the surface of the die, and the electromagnetic induction coil and the supporting frame can jointly move relative to the surface of the die.
Preferably, the electromagnetic induction coil is fixed on the mold; or the electromagnetic induction coil is coiled and fixedly arranged on the supporting frame, the electromagnetic induction coil is close to or in direct contact with the surface of the die, and the electromagnetic induction coil and the supporting frame are jointly fixed on the die.
Preferably, the coil forming form of the electromagnetic induction coil includes spiral coil and circuitous coil.
Preferably, the support frame is made of a non-magnetic conductive material.
Preferably, the support frame comprises an outer frame body, an inner frame body and a plurality of connecting strips for connecting the outer frame body and the inner frame body; the connecting strips extend or do not extend into the inner frame body.
Preferably, the moving mode of the electromagnetic induction coil and the supporting frame comprises manual moving and mechanical clamping moving.
Preferably, the electromagnetic induction coil is connected with an alternating power supply control cabinet.
Preferably, the material of the composite battery pack case comprises a thermoplastic composite material and a thermosetting composite material, wherein the thermoplastic composite material comprises a thermoplastic resin and a fiber material, and the thermoplastic resin comprises polypropylene PP, polyethylene PE, polyamide PA, polystyrene PS or acrylonitrile-butadiene-styrene copolymer ABS and modified materials thereof; the thermosetting composite material comprises a thermosetting resin and a fiber material, wherein the thermosetting resin comprises epoxy resin EP, unsaturated polyester resin UP or polyurethane resin PU; the fiber material comprises carbon fiber, glass fiber, basalt fiber, aramid fiber or ultra-high molecular weight polyethylene fiber.
The utility model relates to a manufacturing process for rapidly forming a composite material battery pack shell, which comprises the following steps:
placing an electromagnetic induction coil (or a supporting frame) of the device on the surface of a die, starting an alternating power supply to electrify the electromagnetic induction coil, and rapidly heating the surface layer (0-200 mm) of the die to a specified temperature range in an electromagnetic induction mode;
removing an electromagnetic induction coil (or a supporting frame) positioned on the die, and paving a composite material on the surface of the die;
closing the mould and pressurizing for forming;
cooling;
and fifthly, demolding and post-processing to obtain the composite material battery shell product.
According to the utility model, the surface layer of the die is quickly heated to a specified temperature range through an electromagnetic induction heating mode, and the whole die is not heated in a large range, so that the problems of long heating/cooling time and high energy consumption of the traditional heating mode are fundamentally solved, and meanwhile, the high temperature of the surface layer of the die provides a stable heat source for the composite material, so that the forming process of the composite material battery pack shell product is more mature, stable and efficient.
The utility model has the following advantages:
1. the rapid heating device is arranged on the surface of the die, is convenient to manufacture, improves the die manufacturing efficiency, reduces the die manufacturing cost, can be directly used on an old die (a die using heating modes such as electric heating, oil heating or steam heating, and the like), does not need to additionally open the die, and greatly reduces the die changing cost.
2. By adjusting the heating power and the heating time of the electromagnetic induction coil, the surface layer of the die can be heated, so that the heating/cooling time of the die is greatly saved, the energy consumption for forming products is also greatly saved, and the purposes of greatly improving the production efficiency and effectively reducing the production cost are achieved;
3. the high temperature of the surface layer of the die provides direct, convenient and stable conditions for the effective plasticization and molding of the composite material on the surface of the die.
Description of the drawings:
FIG. 1 is a schematic top view of one embodiment of the present utility model;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic top view of a second embodiment of the present utility model;
FIG. 4 is a cross-sectional view of FIG. 3;
fig. 5 is a schematic cross-sectional configuration of a second embodiment of the present utility model applied to a mold K.
The specific embodiment is as follows:
it should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application, and unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
The rapid heating device of the composite material battery shell mold comprises a support frame 1 which can move relative to the mold or is fixed on the mold, wherein an electromagnetic induction coil 2 is coiled on the support frame 1, the coiling shape of the electromagnetic induction coil 2 is close to or identical with the shape of the surface of the mold, electromagnetic heating is carried out on the surface of the mold under the condition that the electromagnetic induction coil is electrified, and the electromagnetic heating temperature can be adjusted according to requirements.
The supporting frame 1 may be optional, and has the function of supporting the electromagnetic induction coil 2, so that the electromagnetic induction coil 2 is convenient to support, shape, move or fix, and the supporting frame 1 is not required when the formed electromagnetic induction coil 2 can keep a stable shape; when the support frame 1 can move relative to the die, the die clamping of the die cannot be interfered; when the support frame 1 is fixed on the die, the position where the support frame 1 is installed needs to be ensured to avoid the interference of die closing of the die; the electromagnetic coil 2 and the mold can be moved relative to each other or fixed to the mold as needed (it is necessary to ensure that the electromagnetic coil 2 does not interfere with the mold when the mold is closed).
The surface of the mold refers to the surface of the female mold or the male mold for molding the material, and the shape of the battery pack case is mainly a cuboid structure, so that the surface of the female mold or the male mold is usually a cuboid boss or a recess, but is not limited thereto.
One embodiment of the support frame is configured (as shown in fig. 1 and 2), the support frame comprises a rectangular plate body 104 made of non-magnetic conductive material, the electromagnetic induction coil 2 is fixed on one side surface of the rectangular plate body 104, and a connecting strip (not shown in the drawings) for fixing the electromagnetic induction coil 2 can be also arranged on the rectangular plate body 104.
One embodiment of the supporting frame is configured (as shown in fig. 3, 4 and 5), and includes an outer frame 101, an inner frame 102, and a plurality of connection bars 103 connected between the outer frame and the inner frame, wherein the connection bars may extend or not extend into the inner frame, the outer frame 101, the inner frame 102 and the connection bars 103 are made of non-magnetic conductive materials, the outer frame 101 and the inner frame 102 are rectangular frame, the inner frame 102 is smaller than the outer frame 101 in size, and the outer frame 101 and the inner frame 102 are arranged in a dislocation manner in the vertical direction.
The connection strips 103 may be radially arranged or horizontally and longitudinally arranged in a grid shape, the connection strips 103 may be adhesive tapes or plastic strips, the outer frame 101, the inner frame 102, and the rectangular plate 104 may be made of a non-magnetic material such as a plastic plate or a wood plate.
Besides the two support frame structures, the support frame structures can be in other shapes, and the main functions of the support frame structures are to support and mount the electromagnetic induction coils respectively so as to effectively heat the mold and enable the electromagnetic induction coils to move relative to the mold or be fixed on the mold.
The electromagnetic induction coil can be formed into a plane shape, a concave shape, a convex shape or the like so as to be close to or coincide with the shape of the surface of the die, namely, when the die to be heated is a male die, the electromagnetic induction coil is formed into a convex shape; when the die to be heated is a female die, the electromagnetic induction coil is shaped into a concave shape; namely, when the mold to be heated is a plane, the electromagnetic induction coil is formed into a plane shape; when the surface of the mold may have small projections or small depressions locally, the electromagnetic induction coil may not be convenient to adjust the shape at these positions because the coil wire diameter of the electromagnetic induction coil may approach these projections or depressions.
In order to meet the processing requirement, the electromagnetic induction coil and the surface of the die can be close to or directly contacted, the electromagnetic induction coil can be coiled in a spiral shape or a roundabout shape, and the spiral shape can be a circular spiral shape or a square spiral shape.
In use, the movement of the support frame may be by a manual movement or a mechanical clamping movement (e.g., a robotic clamping movement).
When the electromagnetic induction coil is used, the electromagnetic induction coil is connected with the alternating power supply control cabinet, and the control cabinet can adjust different powers and working times transmitted to the electromagnetic induction coil so as to control the heating temperature of the surface of the die.
By adopting the technical scheme, the electromagnetic induction coil with the power of 100-150KW is used for controlling the area to be 1m 2 When the surface layer of the die with the thickness of 10-20mm is heated, the temperature of the die can reach more than 200 ℃ within 2-3 min; the traditional electric heating, oil heating or steam heating belongs to heat transfer heating, cannot be conducted on a specific area, heat loss is large in the heating process, and a period of time of several hours or more is required for the surface of the die to reach the same temperature.
The material of the composite material battery pack shell comprises a thermoplastic composite material and a thermosetting composite material, wherein the thermoplastic composite material comprises thermoplastic resin and a fiber material, and the thermoplastic resin comprises polypropylene PP, polyethylene PE, polyamide PA, polystyrene PS or acrylonitrile-butadiene-styrene copolymer ABS and modified materials thereof; the thermosetting composite material comprises a thermosetting resin and a fiber material, wherein the thermosetting resin comprises epoxy resin EP, unsaturated polyester resin UP or polyurethane resin PU; the fiber material comprises carbon fiber, glass fiber, basalt fiber, aramid fiber or ultra-high molecular weight polyethylene fiber. The utility model relates to a manufacturing process for rapidly forming a composite material battery pack shell, which comprises the following steps:
placing an electromagnetic induction coil (or a supporting frame) of the device on the surface of a die, starting an alternating power supply to electrify the electromagnetic induction coil, and rapidly heating the surface layer (0-200 mm) of the die to a specified temperature range in an electromagnetic induction mode;
removing an electromagnetic induction coil (or a supporting frame) positioned on the die, and paving a composite material on the surface of the die;
closing the mould and pressurizing for forming;
cooling;
and fifthly, demolding and post-processing to obtain the composite material battery shell product.
According to the utility model, the surface layer of the die is quickly heated to a specified temperature range by an electromagnetic induction heating mode, and the whole die is not heated in a large range, so that the problems of long heating/cooling time and high energy consumption of the traditional heating mode are fundamentally changed; meanwhile, the high temperature of the surface layer of the die provides a stable heat source for the composite material, so that the forming process of the composite material battery pack shell product is more mature, stable and efficient.
The utility model has the following advantages:
1. the rapid heating device is arranged on the surface of the die, is convenient to manufacture, improves the die manufacturing efficiency, reduces the die manufacturing cost, can be directly used in old dies (dies using heating modes such as electric heating, oil heating or steam heating) and does not need to be opened in addition, and the changing cost is greatly reduced.
2. By adjusting the heating power and the heating time of the electromagnetic induction coil, the surface layer of the die can be heated, so that the heating/cooling time of the die is greatly saved, the energy consumption for forming products is also greatly saved, and the purposes of greatly improving the production efficiency and effectively reducing the production cost are achieved;
3. the high temperature of the surface layer of the die provides direct, convenient and stable conditions for the effective plasticization and molding of the composite material on the surface of the die.
The foregoing embodiments have been provided for the purpose of illustrating the utility model in further detail, and are not to be construed as limiting the scope of the utility model; it should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present utility model are intended to be included in the scope of the present utility model.
Claims (9)
1. A quick heating device of combined material battery shell body mould, its characterized in that: the electromagnetic induction coil is coiled and formed on the surface of the die, the coiling and forming shape of the electromagnetic induction coil is close to or identical with the shape of the surface of the die to be heated, and the surface of the die is subjected to rapid electromagnetic heating under the condition that the electromagnetic induction coil is electrified; the electromagnetic induction coil is coiled on the supporting frame, the electromagnetic induction coil is close to or in direct contact with the surface of the die, and the electromagnetic induction coil and the supporting frame can jointly move relative to the surface of the die.
2. The rapid heating apparatus of a composite battery can body mold according to claim 1, wherein: the electromagnetic coil is movable relative to the mold to move the electromagnetic coil onto the mold surface when heating of the mold surface is desired and to move the mold surface when mold closing is desired.
3. The rapid heating apparatus of a composite battery can body mold according to claim 1, wherein: the electromagnetic induction coil is fixed on the die; or the electromagnetic induction coil is coiled and fixedly arranged on the supporting frame, the electromagnetic induction coil is close to or in direct contact with the surface of the die, and the electromagnetic induction coil and the supporting frame are jointly fixed on the die.
4. A rapid heating apparatus for a composite battery can body mold according to claim 1, 2 or 3, characterized in that: the coil forming form of the electromagnetic induction coil includes spiral coil and circuitous coil.
5. The rapid heating apparatus of a composite battery can body mold according to claim 1, wherein: the support frame is made of non-magnetic conductive materials.
6. The rapid heating apparatus of a composite battery can body mold according to claim 1, wherein: the support frame comprises an outer frame body, an inner frame body and a plurality of connecting strips for connecting the outer frame body and the inner frame body; the connecting strips extend or do not extend into the inner frame body.
7. The rapid heating apparatus of a composite battery can body mold according to claim 1, wherein: the moving modes of the electromagnetic induction coil and the supporting frame comprise manual movement and mechanical clamping movement.
8. The rapid heating apparatus of a composite battery can body mold according to claim 1, wherein: the electromagnetic induction coil is connected with the alternating power supply control cabinet.
9. The rapid heating apparatus of a composite battery can body mold according to claim 1, wherein: the composite battery pack shell comprises a thermoplastic composite material and a thermosetting composite material, wherein the thermoplastic composite material comprises thermoplastic resin and a fiber material, and the thermoplastic resin comprises polypropylene PP, polyethylene PE, polyamide PA, polystyrene PS or acrylonitrile-butadiene-styrene copolymer ABS and modified materials thereof; the thermosetting composite material comprises a thermosetting resin and a fiber material, wherein the thermosetting resin comprises epoxy resin EP, unsaturated polyester resin UP or polyurethane resin PU; the fiber material comprises carbon fiber, glass fiber, basalt fiber, aramid fiber or ultra-high molecular weight polyethylene fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321499412.5U CN220534749U (en) | 2023-06-13 | 2023-06-13 | Quick heating device for composite material battery shell mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321499412.5U CN220534749U (en) | 2023-06-13 | 2023-06-13 | Quick heating device for composite material battery shell mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220534749U true CN220534749U (en) | 2024-02-27 |
Family
ID=89961704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321499412.5U Active CN220534749U (en) | 2023-06-13 | 2023-06-13 | Quick heating device for composite material battery shell mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220534749U (en) |
-
2023
- 2023-06-13 CN CN202321499412.5U patent/CN220534749U/en active Active
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