CN114701125B - High-temperature-resistant copper bar injection mold and process for new energy automobile three-electric product - Google Patents
High-temperature-resistant copper bar injection mold and process for new energy automobile three-electric product Download PDFInfo
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- CN114701125B CN114701125B CN202210288590.7A CN202210288590A CN114701125B CN 114701125 B CN114701125 B CN 114701125B CN 202210288590 A CN202210288590 A CN 202210288590A CN 114701125 B CN114701125 B CN 114701125B
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- copper bar
- mold
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- jack
- slide block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/36—Plugs, connectors, or parts thereof
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
本发明公开了一种用于新能源汽车三电产品的耐高温铜排注塑模具，包括第一上模和下模，第一上模中部开设有第一插孔，插孔内插装有第二上模，第二上模中心开设有第二插孔，第二插孔内插装有用于夹紧铜排的夹具，第一上模、第二上模、下模、夹具之间形成注塑模腔，第一上模与下模的两侧设有从拼接面插入的设置的第一滑块和第二滑块，第一滑块的端部设有插入模腔并抵铜排上的第一插板，第二滑块的端部设有插入模腔并抵铜排上的第二插板，第一插板、第二插板对称设置在铜排两侧，且将模腔分隔成上下半部分，模具还包括替换第一滑块和第二滑块的第三滑块和第四滑块，第三滑块和第四滑块的端部并无插板，制得的铜排注塑件永久解决了产品的泄露风险。
The invention discloses a high-temperature-resistant copper row injection mold for new energy vehicle three-electric products, which includes a first upper mold and a lower mold. A first jack is provided in the middle of the first upper mold, and a third jack is inserted into the jack. Two upper molds. A second jack hole is provided in the center of the second upper mold. A clamp for clamping the copper bar is inserted into the second jack hole. An injection molding process is formed between the first upper mold, the second upper mold, the lower mold and the clamp. In the mold cavity, both sides of the first upper mold and the lower mold are provided with first slide blocks and second slide blocks inserted from the splicing surface. The end of the first slide block is provided with a slide block inserted into the mold cavity and against the copper bar. The end of the first inserting plate and the second slider is provided with a second inserting plate inserted into the mold cavity and against the copper bar. The first inserting plate and the second inserting plate are symmetrically arranged on both sides of the copper bar and separate the mold cavity. Into upper and lower parts, the mold also includes third slide blocks and fourth slide blocks that replace the first slide block and the second slide block. There are no inserting plates at the ends of the third slide block and the fourth slide block. The copper produced Expelling injection molded parts permanently solves the risk of product leakage.
Description
Technical Field
The invention relates to the technical field of copper bar injection molding, in particular to a copper bar injection mold and a copper bar injection molding process.
Background
At present, the conductive connection copper bar in the market is mostly of a single insert injection molding structure, the structure meets the requirements on electrical products without sealing requirements, but along with the sealing performance requirements of three electrical products of a new energy automobile (mainly the sealing performance between the upper and lower half sections of the copper bar, namely the inner and outer structures of the injection molding copper bar, two ends of the copper bar are respectively connected with a motor and an electric controller part, the motor is in a sealed cavity, the cavity is internally provided with oil liquid cooled by the motor, the electric controller part is provided with devices such as an IGBD module, a PCB (printed circuit board) and a capacitor, and the like, and the sealing of the outer part of the insert injection molding structure is easy to ensure, but the sealing requirements of long-term high and low temperature periodical change cannot be met due to the fact that the shrinkage volume is different or the injection molding defect is caused by different specific heats of a single metal insert injection molding process. The current solution in the industry is to dispense glue on the periphery of the metal part to compensate for the defect. The process is complex, the air drying period of the sealant is long, the sealant is easy to produce environmental pollution, the production environment and the protection requirements on workers are high, the production period of the product is long, and the efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high-temperature-resistant copper bar injection mold and a high-temperature-resistant copper bar injection process for a new energy automobile three-electric product, solves the problem that the existing copper bar injection molding part is insufficient in tightness due to different specific heats of metal poles and plastics, solves the problem of overhigh maintenance cost, and solves the problem of low sealing efficiency.
The purpose of the invention is realized in the following way: the high-temperature-resistant copper bar injection mold comprises a first upper mold and a lower mold, wherein a first jack is formed in the middle of the first upper mold, a second upper mold is inserted into the jack, a second jack is formed in the center of the second upper mold, a clamp for clamping a copper bar is inserted into the second jack, an injection molding cavity is formed among the first upper mold, the second upper mold, the lower mold and the clamp, a first sliding block and a second sliding block which are inserted from a splicing surface are arranged on two sides of the first upper mold and the lower mold, a first inserting plate which is inserted into the cavity and abuts against the copper bar is arranged at the end part of the first sliding block, a second inserting plate which is inserted into the cavity and abuts against the copper bar is arranged at two sides of the copper bar symmetrically, the mold also comprises a third sliding block and a fourth sliding block which are used for replacing the first sliding block and the second sliding block, and the end part of the third sliding block and the fourth sliding block are not separated into upper half parts and lower half parts;
the injection molding process comprises the following steps:
1) Fixing the first upper die and the second upper die, clamping three copper bars to be injection molded by using a clamp, and inserting the three copper bars into the second jack;
2) Controlling the first upper die, the second upper die, the lower die, the first sliding block and the second sliding block to be matched;
3) Controlling the temperature of the mold, and pressurizing and injecting plastic until the plastic is completely filled;
4) After cooling, the first slide block and the second slide block are withdrawn, and a third slide block without the first plugboard and a fourth slide block without the second plugboard are inserted;
3) And pressurizing and injecting rubber until the rubber is completely filled, cooling and demolding to obtain the high-temperature-resistant high-tightness copper bar.
Firstly, through designing the first sliding block and the second sliding block and arranging the first inserting plate and the second inserting plate which are inserted into the die cavity and are abutted against the copper bar at the end parts of the first sliding block and the second sliding block, a through hole penetrating through the center of the plastic profile is formed at the first inserting plate and the second inserting plate during injection molding, a foundation is provided for filling sealing rubber at the position, sealing rubber is filled in the through hole to wrap the copper bar, the sealing rubber separates the upper part and the lower part of the copper bar, and the elasticity of the sealing rubber is not influenced by the high temperature of the copper bar, so that the problem of insufficient sealing property caused by different specific heats of metal poles and plastics at other positions is solved; meanwhile, the first plugboards and the second plugboards on two sides of the copper bar also play a role in clamping and fixing the copper bar, so that stability of the copper bar in the injection molding process is guaranteed, the problem of partial sealing caused by insufficient stability is avoided, and the sealing performance is further improved.
Secondly, when the copper bar is put on the die, the second upper die is inserted into the first upper die, then the clamp is used for clamping the copper bar, and the copper bar is inserted into the second jack on the second upper die, so that the problem that the integral upper die needs to be replaced when the upper die is constructed; when the second upper die needs to be maintained, the second upper die is directly replaced.
Finally, the high-temperature-resistant high-tightness copper bar can be obtained through injection molding twice by the process, the production period is short, the sealant is not used any more, the problem of environmental pollution is solved, and the problem of low production efficiency is also solved.
Compared with the prior art, the invention has the beneficial effects that:
the copper bar injection molding piece manufactured by the manufacturing method permanently solves the leakage risk of products, greatly reduces the production cost and the production period, has a simple structure, can quickly realize copper bar assembly, and is more suitable for narrow space arrangement.
As an improvement of the technical scheme of the invention, the clamp is formed by splicing two clamping plates, a groove for placing a copper bar is formed in one clamping plate, and inclined surfaces are processed on two sides of the second jack. The wedge-shaped structure is realized through the inclined plane on a pair of splint cooperation, realizes the clamp of copper bar along with the decline of splint, solves the leakproofness problem that the copper bar is fixed unstable and brings.
As an improvement of the technical scheme of the invention, the bottom surface of the second upper die is provided with the bosses which are abutted against the first plugboard and the second plugboard. The boss is designed to form a small hole communicated with the through hole on the plastic piece, and when the rubber is filled, the small hole can be filled with the rubber, so that the connection strength between the rubber and the plastic is enhanced.
As an improvement of the technical scheme of the invention, a first notch is formed in the first inserting plate, a second notch is formed in the second inserting plate, and the first notch and the second notch are staggered. The first notch and the second notch can be filled with rubber when the rubber is filled, so that the connection strength between the rubber and the plastic is further enhanced.
As an improvement of the technical scheme of the invention, the second upper die also needs to be moved upwards when the first sliding block and the second sliding block are withdrawn in the step 4), and the through holes formed by the bosses are exposed. So that the rubber can be filled into the small holes formed by the bosses more conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a three-dimensional structure of a mold according to the present invention.
FIG. 2 is a cross-sectional view of a mold according to the present invention.
FIG. 3 is a schematic view of the first and second slides in the mold of the present invention.
Fig. 4 is a schematic view of the structure of a second upper die in the die of the present invention.
Fig. 5 is a schematic view of a copper bar manufactured by the method.
FIG. 6 is a cross-sectional view of a copper bar made in accordance with the present invention.
FIG. 7 is a schematic view of a plastic part in a copper bar made by the invention.
FIG. 8 is a schematic view of the structure of the seal rubber in the copper bar manufactured by the invention.
The plastic sealing device comprises a first upper die, a second upper die, a 2a inclined surface, a 2b boss, a 3 lower die, a 4 clamp, a 4a clamping plate, a 4b groove, a 5 injection molding cavity, a 6 first slide block, a 7 second slide block, an 8 first inserting plate, an 8a first notch, a 9 second inserting plate, a 9a second notch, 10 copper bars, 11 plastic parts, 11a through holes and 12 sealing rubber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The high temperature resistant copper bar injection mold for the three electric products of the new energy automobile shown in the figures 1-4 comprises a first upper mold 1 and a lower mold 3, wherein a first jack is arranged in the middle of the first upper mold 1, a second upper mold 2 is inserted into the jack, the first upper mold 1 is fixed by a screw, three second jacks are arranged in the center of the second upper mold 2, three clamps 4 used for clamping the copper bar 10 are inserted into the three second jacks, the clamps 4 are formed by splicing two clamping plates 4a, grooves 4b used for placing the copper bar 10 are arranged on one clamping plate 4a, inclined surfaces 2a are processed on two sides of the second jacks, an injection molding cavity 5 is formed among the first upper mold 1, the second upper mold 2, the lower mold 3 and the clamps 4, a first sliding block 6 and a second sliding block 7 which are inserted from splicing surfaces are arranged on two sides of the first upper mold 1 and the lower mold 3, the end of the first slide block 6 is provided with a first plugboard 8 which is inserted into the injection molding cavity 5 and abuts against the copper bar 10, the first plugboard 8 can be directly formed on the first slide block 6 in the process of processing the first slide block 6, such as stamping, injection molding or other forms, the end of the first slide block 6 can also be installed in a movable assembly mode (such as a T-shaped groove formed on the first slide block 6 by the first plugboard 8 of a T-shaped head structure in a matched manner), the end of the second slide block 7 is provided with a second plugboard 9 which is inserted into the mold cavity and abuts against the copper bar 10, the second plugboard 9 can be directly formed on the second slide block 7 in the process of processing the second slide block 7, such as stamping, injection molding or other forms, the end of the second slide block 7 can also be installed in a movable assembly mode (such as a T-shaped groove formed on the second slide block 7 by the second plugboard 9 of a T-shaped head structure in a matched manner), the first plugboard 8 and the second plugboard 9 are symmetrically arranged on two sides of the copper bar 10, and divides the mould cavity into upper and lower halves, the mould further comprising third and fourth slides (not shown) replacing the first and second slides 6, 7, the ends of which are free of insert plates.
The bottom surface of the second upper die 2 is provided with a boss 2b which is abutted against the first plugboard 8 and the second plugboard 9, and the boss can be round, square or other shapes.
The first plugboard 8 is provided with a first notch 8a, the second plugboard 9 is provided with a second notch 9a, and the first notch 8a and the second notch 9a are staggered.
The high-temperature-resistant copper bar 10 injection molding method for the three-electric product of the new energy automobile adopts the mold and comprises the following steps:
1) Fixing a first upper die 1 and a second upper die 2, clamping three copper bars 10 to be injection molded by using a clamp 4, and inserting the three copper bars into a second jack;
2) Controlling the first upper die 1, the second upper die 2, the lower die 3, the first sliding block 6 and the second sliding block 7 to be matched;
3) Controlling the temperature of the mold, and pressurizing and injecting plastic until the plastic is completely filled;
4) After cooling, the first slide block 6 and the second slide block 7 are withdrawn, the second upper die 2 is moved upwards, the through hole 11a formed by the boss 2b is exposed, and a third slide block without the first plugboard 8 and a fourth slide block without the second plugboard 9 are inserted;
3) And (5) pressurizing and injecting rubber until the rubber is completely filled, cooling and demolding to obtain the high-temperature-resistant high-tightness copper bar 10.
As shown in fig. 5-8, in the copper bar 10 structure manufactured by the invention, the copper bar 10 is coated in the plastic part 11, the middle part of the plastic part 11 is provided with a transverse through hole, the transverse through hole is a flat hole, the copper bar 10 longitudinally passes through the transverse through hole, the transverse through hole is filled with sealing rubber 12, the plastic part 11 is provided with a through hole 11a communicated with the transverse through hole in the vertical direction, and the sealing effect on a plurality of copper bars 10 can be completed at one time.
The copper bar 10 can be used after being arranged on a three-electric product of a new energy automobile. According to the invention, the first plugboard 8 and the second plugboard 9 are used for forming the transverse through holes in the plastic one-time injection molding process of the copper bar 10 plastic insert, the transverse through holes are divided into the upper part and the lower part, and the transverse through holes are filled with the sealing rubber 12, so that the sealing rubber 12 is not influenced by the temperature of the copper bar 10, the problem of gap leakage caused by expansion and contraction or injection molding defects can be well solved, the leakage risk of products is permanently solved, the production cost and the production period are greatly reduced, the copper bar 10 injection molding structure is simple, the copper bar 10 assembly can be rapidly realized, and the copper bar 10 injection molding structure is more suitable for narrow space arrangement.
The above description of the embodiments is only for aiding in the understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (2)
1. The utility model provides a high temperature resistant copper bar injection molding method for three electric products of new energy automobile, injection mold that adopts includes first upper mould (1) and lower mould (3), first jack has been seted up at first upper mould (1) middle part, first jack interpolation is equipped with second upper mould (2), second jack has been seted up at second upper mould (2) center, second jack interpolation is equipped with anchor clamps (4) that are used for pressing from both sides tight copper bar (10), form injection mold die cavity (5) between first upper mould (1), second upper mould (2), lower mould (3), anchor clamps (4), first upper mould (1) are equipped with first slider (6) and second slider (7) that insert from the concatenation face with the both sides of lower mould (3), the tip of first slider (6) is equipped with inserts injection mold cavity (5) and contradicts first picture peg (8) on copper bar (10), the tip of second slider (7) is equipped with inserts mold cavity (5) and contradicts second (9) on copper bar (10), second slider (8) and second slider (7) are equipped with and the top of fourth slider and the slider is separated into die cavity (6) and the second slider (7) on the both sides of fourth slider and the fourth slider;
the clamp (4) is formed by splicing two clamping plates (4 a), a groove (4 b) for placing a copper bar (10) is formed in one clamping plate (4 a), and inclined surfaces (2 a) are machined on two sides of the second jack;
the bottom surface of the second upper die (2) is provided with a boss (2 b) which is abutted against the first plugboard (8) and the second plugboard (9);
the first plugboard (8) is provided with a first notch (8 a) in a machining mode, the second plugboard (9) is provided with a second notch (9 a) in a machining mode, and the first notch (8 a) and the second notch (9 a) are staggered with each other, and the method is characterized by comprising the following steps:
1) Fixing a first upper die (1) and a second upper die (2), clamping three copper bars (10) to be injection molded by using a clamp (4), and inserting the three copper bars into a second jack;
2) Controlling the first upper die (1), the second upper die (2), the lower die (3), the first sliding block (6) and the second sliding block (7) to be assembled;
3) Controlling the temperature of the mold, and pressurizing and injecting plastic until the plastic is completely filled;
4) After cooling, the first slide block (6) and the second slide block (7) are withdrawn, and a third slide block without a plugboard and a fourth slide block without a plugboard are inserted;
3) And (5) pressurizing and injecting rubber until the rubber is completely filled, cooling and demolding to obtain the high-temperature-resistant high-tightness copper bar (10).
2. The high-temperature-resistant copper bar injection molding method for the three-electric product of the new energy automobile according to claim 1, wherein in the step 4), the second upper die (2) is required to be moved upwards when the first sliding block (6) and the second sliding block (7) are withdrawn, and the through hole (11 a) formed by the boss (2 b) is exposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210288590.7A CN114701125B (en) | 2022-03-23 | 2022-03-23 | High-temperature-resistant copper bar injection mold and process for new energy automobile three-electric product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210288590.7A CN114701125B (en) | 2022-03-23 | 2022-03-23 | High-temperature-resistant copper bar injection mold and process for new energy automobile three-electric product |
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| Publication Number | Publication Date |
|---|---|
| CN114701125A CN114701125A (en) | 2022-07-05 |
| CN114701125B true CN114701125B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210288590.7A Active CN114701125B (en) | 2022-03-23 | 2022-03-23 | High-temperature-resistant copper bar injection mold and process for new energy automobile three-electric product |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116945471B (en) * | 2023-07-26 | 2026-04-14 | 中山数码模汽车技术有限公司 | Plastic copper-clad forming die for high-precision EPS wiring frame |
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| CN113427703A (en) * | 2021-05-12 | 2021-09-24 | 宁波一彬电子科技股份有限公司 | Injection molding equipment and process for high-crystalline material large-suspension bracket |
| CN214899076U (en) * | 2021-06-29 | 2021-11-26 | 梁涛 | Injection molding structure with metal through insert and electric connector |
| CN215496991U (en) * | 2021-07-05 | 2022-01-11 | 广东胜蓝新能源科技有限公司 | Trinity rubber coating battery copper bar of moulding plastics |
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Denomination of invention: Used for high-temperature resistant copper busbar injection molds and processes for new energy vehicle three-electric products Granted publication date: 20231124 Pledgee: Bank of China Limited Hangjiang Branch, Yangzhou Pledgor: JIANGSU OLIVE SENSORS HIGH-TECH Co.,Ltd. Registration number: Y2025980059839 |