CN113276514B - Flame-retardant protective film for wireless charging coil - Google Patents

Flame-retardant protective film for wireless charging coil Download PDF

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Publication number
CN113276514B
CN113276514B CN202110456178.7A CN202110456178A CN113276514B CN 113276514 B CN113276514 B CN 113276514B CN 202110456178 A CN202110456178 A CN 202110456178A CN 113276514 B CN113276514 B CN 113276514B
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China
Prior art keywords
protection
layer
wireless charging
charging coil
adhesive
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CN202110456178.7A
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CN113276514A (en
Inventor
唐志豹
庄畅
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Kunshan Lianyouchang Electronics Co ltd
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Kunshan Lianyouchang Electronics Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/584—Scratch resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a flame-retardant protective film for a wireless charging coil, which comprises a first protective outer layer and a second protective outer layer, wherein an annular groove is formed in the surface of the first protective outer layer, an adhesive ring sheet is embedded in the annular groove, a wireless charging coil placing groove and a wire arranging groove are respectively formed in the surface of the first protective outer layer, and the first protective outer layer and the second protective outer layer are connected in an adhesive mode through the adhesive ring sheet. According to the invention, the wireless charging coil can be better placed through the wireless charging coil placing groove and the wire arranging groove, so that the protective film can have a better protection effect, and the flame retardant layer is arranged, so that the flame retardant capability of the whole protective film is stronger, and the fire phenomenon caused by high temperature is avoided.

Description

Flame-retardant protective film for wireless charging coil
Technical Field
The invention relates to the technical field of protective films, in particular to a flame-retardant protective film for a wireless charging coil.
Background
Along with the consumer is to the continuous improvement of requirements such as power supply quality, security, reliability, convenience, instantaneity, special occasion, special geographical environment for contact electric energy transmission mode more and more can not satisfy the actual need, thereby wireless line ware that fills has appeared, and the inside of wireless charger often is provided with wireless charging coil, but wireless charging coil need be equipped with corresponding protection film and protect.
However, the existing protective film has the following defects:
1. when the existing protective film is integrally used, the wireless charging coil is difficult to place stably, so that leakage is easy to generate during the use, the protective effect cannot be achieved, the overall flame retardant capability is general, and the wireless charging coil is easy to generate nature under the influence of high temperature and is very unsafe;
2. the existing protective film has general buffering capacity, so that the protective effect is reduced, and the overall ultraviolet resistance and scratch resistance are poor.
Disclosure of Invention
The invention aims to provide a flame-retardant protective film for a wireless charging coil, which aims to solve the problems that the wireless charging coil is difficult to place stably when being used integrally, so that leakage is easy to generate during use, the protective effect cannot be achieved, the whole flame-retardant capability is general, the whole buffering capability is poor, and the ultraviolet resistance and the scratch resistance are poor.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a wireless charging coil is with fire-retardant protection film, is outer including first protection skin and second protection, the ring channel has been seted up on first protection outer surface, the inside of ring channel is inlayed and is had sticky ring piece, wireless charging coil standing groove and winding displacement groove have been seted up respectively on first protection outer surface, first protection skin and second protection skin are through sticky ring piece adhesive connection, first protection skin is including fire-retardant layer, the outer fixed surface on fire-retardant layer bonds there is the peel ply, the outer fixed surface bonding of peel ply has the antistatic layer, the outer fixed surface bonding of antistatic layer has the buffer layer.
Furthermore, the second protection skin includes the curved PET rete of heat, the external fixed surface bonding of the curved PET rete of heat has the anti-scratch coating, the external fixed surface bonding of anti-scratch coating has the protection film glue film, the external fixed surface bonding of protection film glue film has the ultraviolet shielding layer.
Further, the flame-retardant layer is made of a polyphenylene sulfide material, the peeling layer is made of an acrylic acid material, and the buffer layer is made of an ethylene-vinyl acetate copolymer material.
Furthermore, the protective film glue layer is made of acrylic acid materials, and the adhesive ring sheet is made of at least one of water-based adhesive, hot melt adhesive, oil adhesive and silica gel.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, the wireless charging coil can be better placed through the wireless charging coil placing groove and the wire arranging groove, so that the protective film can have a better protection effect, and the flame retardant layer is arranged, so that the anti-flame capability of the whole protective film is stronger, and the fire phenomenon caused by high temperature is avoided.
(2) According to the invention, through the ultraviolet shielding layer, the scratch-resistant coating and the buffer layer, the whole protective film has better ultraviolet resistance and scratch-resistant capability, and the whole buffer capability can be greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of a second protective outer structure of the present invention;
FIG. 3 is a schematic structural layer of a first protective outer layer of the present invention;
fig. 4 is a schematic structural layer of a second protective outer layer of the present invention.
In the figure: 1. a first protective outer layer; 101. a flame retardant layer; 102. a peeling layer; 103. an antistatic layer; 104. a buffer layer; 2. a second protective outer layer; 201. hot bending the PET film layer; 202. a scratch-resistant coating; 203. protecting the adhesive layer of the film; 204. an ultraviolet shielding layer; 3. an annular groove; 4. gluing a ring sheet; 5. a wireless charging coil placing groove; 6. a wire arrangement groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a wireless charging coil is with fire-retardant protection film, includes first protection skin 1 and second protection skin 2, and ring channel 3 has been seted up on first protection skin 1's surface, and the inside of ring channel 3 is inlayed and is had adhesive ring piece 4, and wireless charging coil standing groove 5 and winding displacement groove 6 have been seted up respectively on first protection skin 1's surface, and first protection skin 1 and second protection skin 2 pass through adhesive ring piece 4 adhesive connection.
Through setting up ring channel 3 and sticky ring piece 4, can carry out better arrangement with sticky ring piece 4 through ring channel 3 firstly, avoid influencing holistic thickness, in addition just can ensure the connection stability of first protection skin 1 and second protection skin 2, the rethread sets up wireless charging coil standing groove 5 and winding displacement groove 6 for wireless charging coil can obtain better placing.
Specifically, the first protective outer layer 1 includes a flame retardant layer 101, a release layer 102 is fixedly bonded to an outer surface of the flame retardant layer 101, an antistatic layer 103 is fixedly bonded to an outer surface of the release layer 102, and a buffer layer 104 is fixedly bonded to an outer surface of the antistatic layer 103.
By making the first protective outer layer 1 of the flame-retardant layer 101, the peeling layer 102, the antistatic layer 103 and the buffer layer 104, the whole protective film has better flame-retardant, antistatic and buffering capabilities.
Specifically, the second outer protective layer 2 includes a hot-bending PET film layer 201, a scratch-resistant coating 202 is fixedly bonded to the outer surface of the hot-bending PET film layer 201, a protective film glue layer 203 is fixedly bonded to the outer surface of the scratch-resistant coating 202, and an ultraviolet shielding layer 204 is fixedly bonded to the outer surface of the protective film glue layer 203.
Through making the outer 2 of second protection by the curved PET rete 201 of heat, prevent scraping coating 202, protection film glue film 203 and ultraviolet shielding layer 204 for the protection film can also possess corresponding prevent scraping and ultraviolet resistance ability.
Specifically, the flame retardant layer 101 is made of a polyphenylene sulfide material, the peeling layer 102 is made of an acrylic material, and the buffer layer 104 is made of an ethylene-vinyl acetate copolymer material.
The polyphenylene sulfide material has strong flame retardant capability, the acrylic acid material has good stripping function, and the ethylene-vinyl acetate copolymer material has strong buffer capability.
Specifically, the protective film adhesive layer 203 is made of an acrylic acid material, and the adhesive ring sheet 4 is made of at least one of water-based adhesive, hot melt adhesive, oil adhesive and silica gel.
Wherein the water-based adhesive, the hot melt adhesive, the oil adhesive and the silica gel have strong cohesiveness.
The working principle of the invention is as follows: whole wireless charging coil is with fire-retardant protection film when using, at first the wireless charging coil that will protect places the inside at wireless charging coil standing groove 5, arrange corresponding wire through winding displacement 6 afterwards, all back that finishes, with first outer 1 and the outer 2 of second protection through sticky ring piece 4 bonding, then carry out certain pressfitting, can reach the protection effect, it is whole that outer 1 of first protection and the outer 2 of second protection constitute by four functional layers in addition, make whole protection can also possess corresponding fire-retardant, ultraviolet resistance, prevent scraping and antistatic performance, with this holistic life has been improved.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a wireless coil of charging is with fire-retardant protection film which characterized in that: including first outer (1) of protection and second protection outer (2), ring channel (3) have been seted up on the surface of first outer (1) of protection, the inside of ring channel (3) is inlayed and is had adhesive ring piece (4), wireless charging coil standing groove (5) and winding displacement groove (6) have been seted up respectively on the surface of first outer (1) of protection, first outer (1) of protection and second protection outer (2) are through adhesive ring piece (4) adhesive connection, first outer (1) of protection includes fire-retardant layer (101), the external fixed surface bonding of fire-retardant layer (101) has peel ply (102), the external fixed surface bonding of peel ply (102) has antistatic layer (103), the external fixed surface bonding of antistatic layer (103) has buffer layer (104).
2. The flame-retardant protective film for the wireless charging coil according to claim 1, characterized in that: the outer (2) of second protection is including the curved PET rete of heat (201), the fixed surface bonding of the curved PET rete of heat (201) has prevents scraping coating (202), the fixed surface bonding of the fixed surface of preventing scraping coating (202) has protection film glue film (203), the fixed surface bonding of the fixed surface of protection film glue film (203) has ultraviolet shielding layer (204).
3. The flame-retardant protective film for the wireless charging coil according to claim 1, characterized in that: the flame-retardant layer (101) is made of polyphenylene sulfide material, the peeling layer (102) is made of acrylic material, and the buffer layer (104) is made of ethylene-vinyl acetate copolymer material.
4. The flame-retardant protective film for the wireless charging coil according to claim 2, characterized in that: the protective film adhesive layer (203) is made of acrylic acid materials, and the adhesive ring sheet (4) is made of at least one of water-based adhesive, hot melt adhesive, oil adhesive and silica gel.
CN202110456178.7A 2021-04-26 2021-04-26 Flame-retardant protective film for wireless charging coil Active CN113276514B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108666078A (en) * 2018-05-22 2018-10-16 珠海拓锐德电子科技有限公司 A kind of integrated car Wireless charging coil
CN208548210U (en) * 2018-05-22 2019-02-26 珠海拓锐德电子科技有限公司 A kind of integrated car Wireless charging coil
CN109439227A (en) * 2018-11-30 2019-03-08 深圳科诺桥科技股份有限公司 A kind of Wireless charging coil covering glue film and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108666078A (en) * 2018-05-22 2018-10-16 珠海拓锐德电子科技有限公司 A kind of integrated car Wireless charging coil
CN208548210U (en) * 2018-05-22 2019-02-26 珠海拓锐德电子科技有限公司 A kind of integrated car Wireless charging coil
CN109439227A (en) * 2018-11-30 2019-03-08 深圳科诺桥科技股份有限公司 A kind of Wireless charging coil covering glue film and preparation method thereof

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