CN107650456B - Edge-wrapped composite antenna module and preparation method thereof - Google Patents
Edge-wrapped composite antenna module and preparation method thereof Download PDFInfo
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- CN107650456B CN107650456B CN201610594578.3A CN201610594578A CN107650456B CN 107650456 B CN107650456 B CN 107650456B CN 201610594578 A CN201610594578 A CN 201610594578A CN 107650456 B CN107650456 B CN 107650456B
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- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 151
- 239000012790 adhesive layer Substances 0.000 claims abstract description 61
- 239000000696 magnetic material Substances 0.000 claims abstract description 53
- 239000011247 coating layer Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 229910002804 graphite Inorganic materials 0.000 claims description 23
- 239000010439 graphite Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000011358 absorbing material Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000001902 propagating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000003292 glue 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
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- 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
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- 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
- B32B7/10—Interconnection of layers at least one layer having inter-reactive 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
- 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
Abstract
The invention discloses an edge-covered composite antenna module, which comprises a coating layer, an outer double-sided adhesive layer and a composite material layer arranged between the coating layer and the outer double-sided adhesive layer, wherein the composite material layer comprises a plurality of magnetic material layers, middle double-sided adhesive layers are respectively arranged between the magnetic material layers, the magnetic material layers are mutually stuck and overlapped through the middle double-sided adhesive layers, the innermost magnetic material layer is stuck and arranged on one side of the coating layer, and the outer double-sided adhesive layer is stuck and arranged on one side of the outermost magnetic material layer. The invention also discloses a preparation method of the covered edge type composite antenna module. According to the invention, by simultaneously binding several magnetic materials, the materials are saved, the process cost is saved, the efficiency is improved, the product can be made thinner, the mechanism space of a customer is further saved, and the product is made thinner.
Description
Technical Field
The invention belongs to Near Field Communication (NFC) technology and wireless charging (WPC), and particularly relates to an edge-wrapped composite antenna module and a preparation method thereof.
Background
Near Field Communication (NFC) technology is integrated and evolved from non-contact Radio Frequency Identification (RFID) and interconnection technology, and the functions of an induction card reader, an induction card and point-to-point are combined on a single chip, so that the NFC technology can be used for carrying out identification and data exchange with compatible equipment in a short distance. NFC antennas are components used in radio devices to transmit or receive electromagnetic waves, which transform guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium (usually free space) or vice versa. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasure, remote sensing, radio astronomy and the like all rely on antennas to work when information is transmitted by electromagnetic waves. In addition, in terms of energy transfer with electromagnetic waves, an antenna is also required for energy radiation other than signals.
Wireless charging (WPC) originates from wireless power transfer technology, low-power wireless charging often employs electromagnetic induction (e.g., qi mode for charging mobile phones, but induction mode for wireless charging of emerging electric vehicles), high-power wireless charging often employs resonance mode (most electric vehicle charging employs this mode) to transfer energy from a power supply device (charger) to a powered device, which uses the received energy to charge a battery and at the same time to operate itself. Because the charger and the electricity utilization device transmit energy by using a magnetic field, the charger and the electricity utilization device are not connected by using wires, and therefore, the charger and the electricity utilization device can be exposed without conductive contacts.
Referring to the illustration of figure 1 of the drawings, NFC and WPC antenna modules are generally composed of a circuit board, magnetic materials (one or more materials) with anti-interference capability and graphite sheets with heat dissipation effect. As shown in fig. 2 and 3, the conventional manufacturing method generally adopts magnetic materials, graphite sheets are respectively processed and formed, then are respectively coated with edges, are adhered together, and are finally adhered to a circuit board (i.e. a coil) for being arranged on components such as a mobile phone battery, a main board, a shielding case and the like, so that the defects of longer processing period, thicker thickness, lower production efficiency, high cost and the like exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing an edge-wrapped composite antenna module and a preparation method thereof, which are suitable for directly manufacturing circuits on magnetic materials, simplify the procedures, improve the production efficiency and reduce the thickness of products.
In order to solve the technical problems, the invention adopts the following technical scheme:
in one aspect, an edge-covering type composite antenna module comprises a coating layer, an outer double-sided adhesive layer and a composite material layer arranged between the coating layer and the outer double-sided adhesive layer, wherein the composite material layer comprises a plurality of magnetic material layers, middle double-sided adhesive layers are respectively arranged between the magnetic material layers, the middle double-sided adhesive layers are mutually stuck and overlapped, the innermost magnetic material layer is stuck on one side of the coating layer, and the outer double-sided adhesive layer is stuck on one side of the outermost magnetic material layer.
The composite material layer also comprises a graphite sheet layer, the graphite sheet layer is adhered between the innermost magnetic material layer and the cladding layer, and an intermediate double-sided adhesive layer is also arranged between the graphite sheet layer and the innermost magnetic material layer.
A protective film layer is arranged on one side of the magnetic material layer, and is adhered to the middle double-sided adhesive layer on the same side through a protective film layer.
The outer edge of the wrapping layer exceeds the outer edge of the innermost magnetic material layer by a horizontal distance of 0.2-5.0 mm.
The outer edge of the outer double-sided adhesive layer exceeds the outer edge of the innermost magnetic material layer by a horizontal distance of 0-5.0 mm.
And one side of the coating layer is coated with an adhesive and is adhered to the innermost magnetic material layer through the adhesive.
On the other hand, the preparation method of the covered edge type composite antenna module comprises the following steps: a. manufacturing a composite material layer and attaching an outer double-sided adhesive layer; b. and attaching the composite material layer on the coating layer to uniformly make the binding.
The manufacturing method of the composite material layer comprises the following steps:
when the outer shapes of the multi-layer magnetic material layer and the graphite sheet layer are consistent, a mode of firstly pasting and combining and then forming is adopted;
when the shapes of the multi-layer magnetic material layer and the graphite sheet layer are inconsistent, a mode of respectively forming and then combining is adopted.
The edge-wrapped composite antenna module provided by the invention has the following advantages:
1. several magnetic materials are simultaneously covered, so that the materials are saved;
2. several magnetic materials are simultaneously covered, so that the process cost is saved, and the efficiency is improved;
3. the magnetic materials are simultaneously coated, so that the product can be made thinner, the mechanism space of a customer is further saved, and the product is made thinner.
Drawings
The invention is described in detail below with reference to the attached drawings and detailed description:
fig. 1 is a schematic diagram of a prior art antenna module.
Fig. 2 is a flow chart of a method for manufacturing an antenna module according to the prior art.
Fig. 3 is a schematic diagram of a specific structure of an antenna module manufactured by the method shown in fig. 2.
Fig. 4 is a schematic diagram of an antenna module according to the present invention.
Fig. 5 is a schematic diagram of another structure of the antenna module of the present invention.
Fig. 6 is a schematic diagram of a specific structure of an antenna module according to the present invention.
Fig. 7 and 8 are flowcharts of two manufacturing methods of the antenna module of the present invention.
Fig. 9-11 are respectively an antenna module according to the present invention is a schematic structural diagram of three embodiments.
Detailed Description
The basic structure of the antenna module of the present invention is shown in fig. 4 and 5, wherein the basic structure of the antenna module comprises a coating layer, an outer double-sided adhesive layer and a composite material layer arranged between the coating layer and the outer double-sided adhesive layer, the composite material layer comprises a plurality of magnetic material layers, and the magnetic materials can be the same or different, such as wave absorbing materials, nanocrystalline, amorphous magnetic materials and the like. The magnetic material layers are respectively provided with a middle double-sided adhesive layer, the middle double-sided adhesive layers are mutually attached and overlapped, the innermost magnetic material layer is attached and arranged on one side of the coating layer, the size of the coating layer is larger than that of the composite material layer, the horizontal distance between the outer edge of the coating layer and the outer edge of the innermost magnetic material layer is 0.2-5.0 mm (see figure 4), and an adhesive used for being attached and arranged with the innermost magnetic material layer is coated on one side of the coating layer. The outer double-sided adhesive layer can be as large as the coating layer, can be consistent with the composite material layer in size, and is attached to one side of the outermost magnetic material layer, and the horizontal distance between the outer edge of the outer double-sided adhesive layer and the outer edge of the innermost magnetic material layer is 0-5.0 mm (see fig. 5).
Referring to fig. 6, the composite material layer further includes a graphite sheet layer, which is adhered between the innermost magnetic material layer and the cladding layer, and an intermediate double-sided adhesive layer is also disposed between the graphite sheet layer and the innermost magnetic material layer. The graphite sheet layer plays a role in heat dissipation in the structure, and can be optional under the condition of no heat dissipation requirement.
One side of the magnetic material layer is also provided with a protective film layer, and the protective film layer is attached to the middle double-sided adhesive layer on the same side. The protective film layer can be added or cancelled according to design requirements.
List of properties of the above magnetic materials:
the preparation method of the covered edge type composite antenna module comprises the following steps: a. manufacturing a composite material layer and attaching an outer double-sided adhesive layer; b. and attaching the composite material layer on the coating layer to uniformly make the binding.
The specific manufacturing method of the composite material layer comprises the following steps:
when the outer shapes of the multi-layer magnetic material layer and the graphite sheet layer are consistent, a mode of firstly pasting and combining and then forming (punching out the shape wanted by a customer) is adopted (see figure 7);
when the shapes of the multi-layer magnetic material layer and the graphite sheet layer are inconsistent, a mode of respectively forming and then combining is adopted (see fig. 8).
The invention is further illustrated by the following specific examples:
example 1
As shown in fig. 9, the antenna module of the present embodiment includes, in order from bottom to top: the coating layer, graphite sheet layer, first middle double-sided adhesive layer, wave absorbing material layer, second middle double-sided adhesive layer, nanocrystalline layer, outside double-sided adhesive layer.
Wherein, the thickness of the wrapping layer is 10 mu m, the thickness of the graphite sheet is 20 mu m, the thickness of the first middle double-sided adhesive layer is 5 mu m, the thickness of the wave absorbing material layer is 80 mu m, the thickness of the second middle double-sided adhesive layer is 5 mu m, the thickness of the nanocrystalline layer is 50 mu m, the thickness of the outer double-sided adhesive layer is 5 mu m, and the outer edge of the wrapping layer is 0.8mm larger than the composite material layer.
List of magnetic Material Properties of the present embodiment
The manufacturing method of the antenna module comprises the following steps: firstly, respectively attaching an outer double-sided adhesive layer and a second middle adhesive layer on two sides of the nanocrystalline layer; then, attaching a wave-absorbing material layer on one surface of the second intermediate adhesive layer; then, respectively attaching a first double-sided adhesive layer and a graphite sheet layer on one side of the wave-absorbing material layer; and punching and forming the combined composite material, and finally, attaching a wrapping layer to uniformly edge the composite material.
Example 2
As shown in fig. 10, the antenna module of the present embodiment includes, in order from bottom to top: the wrapping layer is arranged on the surface of the base material, the device comprises a graphite sheet layer, a first middle double-sided adhesive layer, a wave absorbing material layer, a second middle double-sided adhesive layer, a nanocrystalline layer, a third middle double-sided adhesive layer, a protective film layer, an amorphous layer and an outer double-sided adhesive layer.
Wherein, the thickness of the wrapping layer is 10 mu m, the thickness of the graphite sheet layer is 20 mu m, the thickness of the first middle double-sided adhesive layer is 5 mu m, the thickness of the wave absorbing material layer is 75 mu m, the thickness of the second middle double-sided adhesive layer is 5 mu m, the thickness of the nanocrystalline layer is 50 mu m, the thickness of the third middle double-sided adhesive layer is 5 mu m, the thickness of the protective film layer is 10 mu m, the thickness of the amorphous layer is 25 mu m, the thickness of the outer double-sided adhesive layer is 5 mu m, and the outer edge of the wrapping layer is 1.2MM larger than the composite material layer.
List of magnetic material properties of this example:
the manufacturing method of the antenna module comprises the following steps: firstly, sticking a protective film layer on one surface of an amorphous layer, sticking an outer double-sided adhesive layer on one surface of the amorphous layer, and respectively sticking a second double-sided adhesive layer and a third double-sided adhesive layer on two surfaces of a nanocrystalline layer; then attaching the nanocrystalline layer with the prepared glue to the protective film layer of the amorphous layer; then the wave-absorbing material layer is stuck on the second middle double-sided adhesive layer of the nanocrystalline layer, and then the first middle double-sided adhesive layer and the graphite sheet layer are respectively stuck on one surface of the wave-absorbing material layer; punching and forming the combined composite material, finally, a wrapping layer is stuck to uniformly make a wrapping edge.
Example 3
The antenna module of this embodiment is shown in figure 11, which comprises the following steps from bottom to top: the device comprises a wrapping layer, a wave absorbing material layer, a first middle double-sided adhesive layer, a nanocrystalline layer and an outer double-sided adhesive layer.
Wherein the thickness of the wrapping layer is 10 mu m, the thickness of the wave absorbing material layer is 85 mu m, the thickness of the first middle double-sided adhesive layer is 5 mu m, the thickness of the nanocrystalline layer is 50 mu m, the thickness of the outer double-sided adhesive layer is 5 mu m, and the outer edge of the wrapping layer is 0.5MM larger than the composite material layer.
List of magnetic material properties of this example:
the manufacturing method of the antenna module comprises the following steps: firstly, respectively attaching an outer double-sided adhesive layer and a first middle double-sided adhesive layer on two sides of a nanocrystalline layer, and punching and forming the nanocrystalline layer; then, the wave-absorbing material layer is punched and formed independently, and the punched nanocrystalline layer and the wave-absorbing material layer are combined and stuck together; finally, a wrapping layer is stuck to uniformly make a wrapping edge.
However, it will be appreciated by persons skilled in the art that the above embodiments are provided for illustration of the invention and not for limitation thereof, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims as long as they fall within the true spirit of the invention.
Claims (3)
1. The preparation method of the covered edge type composite antenna module is characterized in that the covered edge type composite antenna module comprises a coating layer, an outer double-sided adhesive layer and a composite material layer arranged between the coating layer and the outer double-sided adhesive layer, wherein the composite material layer comprises a plurality of magnetic material layers, middle double-sided adhesive layers are respectively arranged between the magnetic material layers and are mutually adhered and overlapped through the middle double-sided adhesive layers, the innermost magnetic material layer is adhered to one side of the coating layer, and the outer double-sided adhesive layer is adhered to one side of the outermost magnetic material layer;
the composite material layer also comprises a graphite sheet layer, the graphite sheet layer is adhered between the innermost magnetic material layer and the cladding layer, and an intermediate double-sided adhesive layer is also arranged between the graphite sheet layer and the innermost magnetic material layer;
the preparation method comprises the following steps:
a. manufacturing a composite material layer and attaching an outer double-sided adhesive layer;
b. the composite material layer is adhered on the coating layer, to uniformly make the edge wrapping;
the horizontal distance between the outer edge of the coating layer and the outer edge of the innermost magnetic material layer is 0.2-5.0 mm;
the horizontal distance between the outer edge of the outer double-sided adhesive layer and the outer edge of the innermost magnetic material layer is 0-5.0 mm;
the size of the cladding layer is larger than that of the composite material layer;
the outer double sided tape is as large as the cladding layer or as large as the composite layer.
2. The method of claim 1, wherein the method of making the composite layer comprises:
when the outer shapes of the multi-layer magnetic material layer and the graphite sheet layer are consistent, a mode of firstly pasting and combining and then forming is adopted;
when the shapes of the multi-layer magnetic material layer and the graphite sheet layer are inconsistent, a mode of respectively forming and then combining is adopted.
3. The method of manufacturing according to claim 1, characterized in that: one side of the magnetic material layer is also provided with a protective film layer, and the protective film layer is attached to the middle double-sided adhesive layer on the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610594578.3A CN107650456B (en) | 2016-07-26 | 2016-07-26 | Edge-wrapped composite antenna module and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610594578.3A CN107650456B (en) | 2016-07-26 | 2016-07-26 | Edge-wrapped composite antenna module and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107650456A CN107650456A (en) | 2018-02-02 |
| CN107650456B true CN107650456B (en) | 2024-04-16 |
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| JP2005184094A (en) * | 2003-12-16 | 2005-07-07 | Olympus Corp | Antenna and manufacturing method of antenna |
| CN101246985A (en) * | 2008-03-06 | 2008-08-20 | 中兴通讯股份有限公司 | Electric terminal unit near-field communication antenna installation method and antenna protecting equipment |
| CN201985236U (en) * | 2010-12-15 | 2011-09-21 | 上海安费诺永亿通讯电子有限公司 | Flexible circuit board antenna |
| CN203217614U (en) * | 2013-04-27 | 2013-09-25 | 万信方达科技发展(北京)有限责任公司 | Electronic tag |
| CN204463185U (en) * | 2014-12-11 | 2015-07-08 | 杭州浙港智能科技有限公司 | A kind of temperature check radio-frequency (RF) tag being applied to body surface |
| CN105009464A (en) * | 2013-02-22 | 2015-10-28 | 三星电子株式会社 | Antenna device for portable terminal, portable terminal and case with antenna device, and method of manufacture |
| CN105027355A (en) * | 2013-03-05 | 2015-11-04 | 阿莫先恩电子电器有限公司 | Composite sheet for shielding magnetic field and electromagnetic wave, and antenna module comprising same |
| CN206124339U (en) * | 2016-07-26 | 2017-04-26 | 上海光线新材料科技有限公司 | Compound antenna module group of type of borduring |
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2016
- 2016-07-26 CN CN201610594578.3A patent/CN107650456B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005184094A (en) * | 2003-12-16 | 2005-07-07 | Olympus Corp | Antenna and manufacturing method of antenna |
| CN101246985A (en) * | 2008-03-06 | 2008-08-20 | 中兴通讯股份有限公司 | Electric terminal unit near-field communication antenna installation method and antenna protecting equipment |
| CN201985236U (en) * | 2010-12-15 | 2011-09-21 | 上海安费诺永亿通讯电子有限公司 | Flexible circuit board antenna |
| CN105009464A (en) * | 2013-02-22 | 2015-10-28 | 三星电子株式会社 | Antenna device for portable terminal, portable terminal and case with antenna device, and method of manufacture |
| CN105027355A (en) * | 2013-03-05 | 2015-11-04 | 阿莫先恩电子电器有限公司 | Composite sheet for shielding magnetic field and electromagnetic wave, and antenna module comprising same |
| CN203217614U (en) * | 2013-04-27 | 2013-09-25 | 万信方达科技发展(北京)有限责任公司 | Electronic tag |
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| CN107650456A (en) | 2018-02-02 |
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