CN114905695A - Sealing method for connecting part of vacuum packaging electrothermal film and terminal - Google Patents
Sealing method for connecting part of vacuum packaging electrothermal film and terminal Download PDFInfo
- Publication number
- CN114905695A CN114905695A CN202210582395.5A CN202210582395A CN114905695A CN 114905695 A CN114905695 A CN 114905695A CN 202210582395 A CN202210582395 A CN 202210582395A CN 114905695 A CN114905695 A CN 114905695A
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- CN
- China
- Prior art keywords
- electrothermal film
- shaped cable
- injection molding
- terminal
- cable terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B29C45/14—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
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
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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
- B29C45/14639—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 for obtaining an insulating effect, e.g. for electrical components
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/60—Riveting or staking
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
- B29C66/02241—Cutting, e.g. by using waterjets, or sawing
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A sealing method for the joint of a vacuum packaging electrothermal film and a terminal relates to the technical field of electrothermal films, and comprises the following steps: s1, mounting the T-shaped cable terminal: cutting a diaphragm of the electrothermal film according to actual needs, punching the cut diaphragm, inserting a T-shaped cable terminal between a current-carrying strip and the diaphragm of the electrothermal film, and riveting and compacting the T-shaped cable terminal through a riveting machine; s2, packaging: and placing the joint in a mold to be injection-molded for injection molding, cooling the mold to a proper temperature after the injection molding is finished, opening the mold, and taking down the product to finish the packaging operation of the joint of the T-shaped cable terminal and the current carrying strip. The invention adopts a packaging process of one-time hot melting injection molding, seamlessly seals the junction of the T-shaped cable terminal and the current-carrying strip of the electrothermal film, thoroughly isolates the contact of the junction with the external environment, is safe and stable, has no oxidation and no leakage point, and achieves the effect of long-term use.
Description
Technical Field
The invention relates to the technical field of electrothermal films, in particular to a sealing method for a joint of a vacuum packaging electrothermal film and a terminal.
Background
At present, the connection of the electric heating film metal current-carrying strip and the T-shaped cable terminal is generally covered and sealed by insulating cement after being pressed and connected by rivets. For example, the chinese invention patent, application No. 2015107328350, discloses a process for manufacturing a packaged electrothermal film, in which a T-shaped cable connector is connected to a connection terminal and then insulated and sealed with an insulating waterproof mastic.
But in the actual use, adopt insulating clay to cover to seal not only pleasing to the eye, sealed effect is not good moreover, because the clay has fluid property to change under certain temperature, in the use, can produce great influence to sealed effect, has hidden danger on safety and the life, because the electric heat membrane buries under the floor again, is difficult to maintain or change, unsatisfied realistic user demand.
Disclosure of Invention
In view of the above situation, the present invention provides a sealing method for the connection between a vacuum-sealed electrothermal film and a terminal, which is safe and stable, and has no oxidation and leakage point, so as to achieve the effect of long-term use.
In order to achieve the purpose, the invention provides the following technical scheme: the sealing method of the joint of the vacuum packaging electrothermal film and the terminal comprises the following steps:
the sealing method of the joint of the vacuum packaging electrothermal film and the terminal comprises the following steps:
s1, mounting the T-shaped cable terminal: cutting a diaphragm of the electrothermal film according to actual needs, punching the cut diaphragm, inserting a T-shaped cable terminal between a current-carrying strip and the diaphragm of the electrothermal film, and riveting and compacting the T-shaped cable terminal through a riveting machine to complete connection of the current-carrying strip and the terminal;
s2, packaging: and placing the connecting position in an injection mold for injection molding, cooling the mold to a proper temperature after the injection molding is finished, opening the mold, and taking down the product to finish the packaging operation of the connecting position of the T-shaped cable terminal and the current carrying strip.
Preferably, in S2, the pressure of injection molding is 40-60 kp; the injection molding temperature is 210-250 ℃; the injection molding time is 10-20 s; the cooling time is 25-40 s.
Preferably, the surface layer of the electrothermal film is a multilayer composite material, and the composite material comprises PA, PE, PP and EVOH.
Preferably, the material adopted by injection molding is homogeneous particles of the electric heating film surface layer packaging material.
Preferably, the T-shaped cable adopts a high-temperature resistant rubber power line, and the T-shaped cable terminal is subjected to external silver plating treatment.
Preferably, the current carrying strip is copper material.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts a packaging process of one-time hot melting injection molding, seamlessly seals the junction of the T-shaped cable terminal and the current-carrying strip of the electrothermal film, thoroughly isolates the contact of the junction with the external environment, is safe and stable, has no oxidation and no leakage point, and achieves the effect of long-term use.
Drawings
FIG. 1: is a structure diagram of a vacuum packaging electric heating film and a T-shaped cable terminal after packaging.
FIG. 2: is a real object picture after the vacuum packaging electric heating film and the T-shaped cable terminal are packaged.
In the figure: the device comprises 1-electric heating film, 2-current carrying bar, 3-T type cable terminal, 4-hole, 5-T type cable, 6-first module and 7-second module.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: the sealing method of the joint of the vacuum packaging electrothermal film and the terminal comprises the following steps:
s1, mounting the T-shaped cable terminal: cutting a diaphragm of the electrothermal film 1 according to actual needs, punching a hole 4 in the cut diaphragm, inserting a T-shaped cable terminal 3 between a current-carrying strip 2 and the diaphragm of the electrothermal film through the hole 4, and riveting and compacting through a riveting machine to complete the connection of the T-shaped cable terminal 3 and the current-carrying strip 2;
s2, packaging: and (3) placing the wiring part in an injection mold to carry out injection molding of plastic, namely placing the wiring part in the injection mold to be subjected to injection molding and fixing all the parts, starting the injection molding machine with set parameters, completing one-time injection molding, cooling the mold to a proper temperature after the injection molding is completed, opening the mold, taking down a product, turning over the other interface of the membrane for injection molding, and observing the appearance after the second injection molding is completed according to the same method, wherein the appearance is normal without loss or leakage.
Wherein, fig. 1: the structure diagram is that the vacuum packaging electric heating film and the T-shaped cable terminal are packaged; fig. 2 is a real object diagram of the vacuum-packaged electrothermal film and the T-shaped cable terminal 3 after packaging.
Wherein, adopt the riveting compaction to fix stable on electrothermal film 2 with T type cable terminal 3 to link to each other with current-carrying strip 2, guarantee electric connection's stability, improve electrothermal film 2's life.
Wherein, the current-carrying strip is made of copper.
Wherein the T-shaped cable terminal 3 is externally silver-plated.
When the mold is set too small, the package safety is deficient, the mold is divided into a large groove and a small groove in the embodiment, the two grooves are communicated, the large groove and the small groove are respectively matched with the first module 6 and the second module 7 in size, and the size of the large groove is 2.5cm x 4.5 cm; the size of the small groove is 1.8cm by 3.8 cm; the thickness of the big groove and the small groove is 1.0 cm.
In the S2, the parameters are set, wherein the injection molding pressure is 40-60 kp, excessive pressure is easy to overflow glue, and too small pressure is easy to lack glue, so that pits appear, and the appearance is poor.
Wherein the injection molding temperature is 210-250 ℃; the injection molding time is 10-20 s, preferably 15s, the injection molding time is too short, so that the injection molding is not shaped, and the working efficiency is reduced if the injection molding time is too long; the cooling time is 25-40 s, preferably 30 s.
The surface layer packaging material of the electrothermal film is a composite material, and the composite material comprises PA, PE, PP and EVOH. The material of adopting of moulding plastics chooses the homogeneous granule of the top layer packaging material of electric heat membrane for use, and T type cable adopts high temperature resistant rubber power cord, because the crust of T type cable, the top layer of electric heat membrane and the particle of the material of moulding plastics for homogeneity, makes whole sealed connection effect better in the packaging process. In other embodiments, the sealing effect is not good because the PVC and other materials cannot be adhered. Meanwhile, the particles in the embodiment have low cost and good insulating, waterproof and chemical corrosion resistant performances.
Example 2: the method provided by embodiment 1 is adopted to connect the vacuum packaging electrothermal film with the T-shaped cable terminal, and the packaged product is subjected to a sealing waterproof test, namely, the product is placed in water for nearly six months, and the test result shows that: under the circular telegram condition, the electric heat membrane can normally be used, has fully proved the sealed, insulating, waterproof performance of vacuum packaging electric heat membrane and terminal junction.
In conclusion, the invention adopts the packaging process of one-time hot melting injection molding, seamlessly seals the junction of the T-shaped cable terminal and the current-carrying strip of the electrothermal film, thoroughly isolates the contact between the junction and the external environment, is safe and stable, has no oxidation and no leakage point, and achieves the effect of long-term use.
It should be pointed out that vacuum packaging electrothermal film is prior art in this application, and in chinese utility model patent, application number is "2021221388991", the name is "a vacuum packaging electrothermal film that is suitable for abnormal shape, fretwork".
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention by equivalent replacement or change according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. The sealing method for the connection part of the vacuum packaging electrothermal film and the terminal is characterized by comprising the following steps:
s1, mounting the T-shaped cable terminal: cutting a diaphragm of the electrothermal film (1) according to actual needs, punching a hole (4) in the cut diaphragm, inserting a T-shaped cable terminal (3) between a current-carrying strip (2) of the electrothermal film and the diaphragm, and riveting and compacting the T-shaped cable terminal through a riveting machine to complete the connection of the current-carrying strip (2) and the T-shaped cable terminal;
s2, packaging: and placing the connecting position in an injection mold for injection molding, cooling the mold to a proper temperature after the injection molding is finished, opening the mold, and taking down the product to finish the packaging operation of the connecting position of the T-shaped cable terminal (3) and the current carrying strip (2).
2. The method for sealing the joint of the vacuum packaging electrothermal film and the terminal as claimed in claim 1, wherein in S2, the pressure of injection molding is 40-60 kp; the injection molding temperature is 210-250 ℃; the injection molding time is 10-20 s; the cooling time is 25-40 s.
3. The method for sealing the joint of the vacuum packaging electrothermal film and the terminal according to claim 1, wherein: the surface layer of the electrothermal film (1) is made of a multilayer synthetic material, and the synthetic material comprises PA, PE, PP and EVOH.
4. The method as claimed in claim 3, wherein the injection molding is made of homogeneous particles of the packaging material on the surface of the electrothermal film.
5. The sealing method for the joint of the vacuum packaging electrothermal film and the terminal according to claim 1, wherein the T-shaped cable (5) adopts a high-temperature resistant rubber power line, and the T-shaped cable terminal (3) is externally subjected to silver plating treatment.
6. The method for sealing the joint of the vacuum packaging electrothermal film and the terminal according to claim 1, wherein: the current carrying strip (2) is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582395.5A CN114905695A (en) | 2022-05-26 | 2022-05-26 | Sealing method for connecting part of vacuum packaging electrothermal film and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582395.5A CN114905695A (en) | 2022-05-26 | 2022-05-26 | Sealing method for connecting part of vacuum packaging electrothermal film and terminal |
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| Publication Number | Publication Date |
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| CN114905695A true CN114905695A (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210582395.5A Pending CN114905695A (en) | 2022-05-26 | 2022-05-26 | Sealing method for connecting part of vacuum packaging electrothermal film and terminal |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB701304A (en) * | 1951-05-07 | 1953-12-23 | Frederick Grisley | Improvements in electrically heated pads or blankets |
| CN104981035A (en) * | 2014-04-10 | 2015-10-14 | 上海保禄包装有限公司 | Electric heating cloth and preparation method and apparatus thereof |
| CN106658778A (en) * | 2015-10-30 | 2017-05-10 | 辽宁百盈碳纤维有限公司 | Production process for electro-thermal film encapsulation |
| CN206851057U (en) * | 2017-03-13 | 2018-01-05 | 陈双云 | Cotton thread grid-net type electrothermal carbon fibre membrane |
| CN208572469U (en) * | 2018-08-01 | 2019-03-01 | 深圳市中乐一实业有限公司 | A kind of physical therapy packet heating sheet |
| CN210351693U (en) * | 2019-07-05 | 2020-04-17 | 石家庄朗秀尚家家纺有限公司 | Waterproof type electric heating carbon fiber film layer |
| CN210629888U (en) * | 2019-08-07 | 2020-05-26 | 牛墨石墨烯应用科技有限公司 | Graphene heating assembly |
| CN213073141U (en) * | 2020-06-08 | 2021-04-27 | 包头市山川圣阳热能科技有限公司 | Electrothermal film for avoiding misoperation of leakage protector |
| CN113133141A (en) * | 2019-12-30 | 2021-07-16 | 赛柯赛斯新能源科技(苏州)有限公司 | Insulation structure and insulation method for connecting point of heating plate pole piece and lead |
| CN214338155U (en) * | 2021-02-10 | 2021-10-01 | 鲍腾云 | Geothermal coiled material |
| CN215773607U (en) * | 2021-09-06 | 2022-02-08 | 河南问暖电子科技有限公司 | Vacuum packaging electrothermal film suitable for irregular shape and hollow out |
-
2022
- 2022-05-26 CN CN202210582395.5A patent/CN114905695A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB701304A (en) * | 1951-05-07 | 1953-12-23 | Frederick Grisley | Improvements in electrically heated pads or blankets |
| CN104981035A (en) * | 2014-04-10 | 2015-10-14 | 上海保禄包装有限公司 | Electric heating cloth and preparation method and apparatus thereof |
| CN106658778A (en) * | 2015-10-30 | 2017-05-10 | 辽宁百盈碳纤维有限公司 | Production process for electro-thermal film encapsulation |
| CN206851057U (en) * | 2017-03-13 | 2018-01-05 | 陈双云 | Cotton thread grid-net type electrothermal carbon fibre membrane |
| CN208572469U (en) * | 2018-08-01 | 2019-03-01 | 深圳市中乐一实业有限公司 | A kind of physical therapy packet heating sheet |
| CN210351693U (en) * | 2019-07-05 | 2020-04-17 | 石家庄朗秀尚家家纺有限公司 | Waterproof type electric heating carbon fiber film layer |
| CN210629888U (en) * | 2019-08-07 | 2020-05-26 | 牛墨石墨烯应用科技有限公司 | Graphene heating assembly |
| CN113133141A (en) * | 2019-12-30 | 2021-07-16 | 赛柯赛斯新能源科技(苏州)有限公司 | Insulation structure and insulation method for connecting point of heating plate pole piece and lead |
| CN213073141U (en) * | 2020-06-08 | 2021-04-27 | 包头市山川圣阳热能科技有限公司 | Electrothermal film for avoiding misoperation of leakage protector |
| CN214338155U (en) * | 2021-02-10 | 2021-10-01 | 鲍腾云 | Geothermal coiled material |
| CN215773607U (en) * | 2021-09-06 | 2022-02-08 | 河南问暖电子科技有限公司 | Vacuum packaging electrothermal film suitable for irregular shape and hollow out |
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