TWM536420U - Antenna battery module - Google Patents

Abstract

An antenna battery module is disclosed in this invention. The antenna battery module includes a battery unit and an antenna unit. The battery unit has a current collecting substrate, a circuit substrate, an electrical-chemical layer and a sealing frame. The electrical-chemical layer is sealed inside the current collecting substrate, the circuit substrate and the sealing frame. The antenna unit is disposed on the circuit substrate and surrounds the battery unit in the orthographic direction. Hence, the battery unit and the antenna unit can be laid compactly so that the size of the circuit substrate can be reduced effectively.

Description

Antenna battery module

This creation is a battery module, especially an antenna battery module in which an induction antenna and a battery are integrated on a circuit board.

Due to the change in consumption patterns, consumers are more and more fond of using plastic money. If you carry a credit card with you, you can save yourself from having to pay a lot of money and worry about finding zero after consumption, especially in recent years. The Easy Card is more popular in applications. It can be used by bus, MRT, parking and convenience store shopping. It does not need to be signed at checkout, and payment can be made through Near Field Communication (NFC). However, because of the convenience of the credit card, the stolen brush incident has been reported. Especially if the leisure card is stolen after being lost, the user has no way to claim.

In order to solve the above problems, for example, U.S. Patent No. 2014/0279555A1 discloses a plurality of smart cards that can dynamically generate security codes, and has a set of buttons for users to input, and is powered by a built-in battery to a microprocessor dynamic. Generate a security code and display the result of the operation or the number entered by the user on an embedded screen. The power supply source is from an embedded battery. Finally, the data can be downloaded or transmitted through the RF antenna. Going out, for example, the user can periodically receive a time-sensitive security code through the mobile phone, set the security code to the smart card before the transaction is performed, and transmit the set security code to the authorized card issuer when the card is swiped or The payment system is established after the verification is correct. Through such a mechanism, the smart card can be balanced between convenience and security.

The components of the US Patent Publication No. 2014/0279555A1 are independent of each other. As shown in FIG. 1 , the smart card 200 includes a control unit 202, a battery unit 204, a memory unit 206, a display unit 208, an antenna 210, and a button group 212. …Wait The components are connected one by one through the metal wires. Since the card itself has a thickness consideration in design, it is not allowed to have a staggered stack between the components, so the space for configuring the battery is extremely limited, and the built-in battery even has If it is not used, it will also cause the battery to be discharged again due to the self-discharge of the battery.

In addition, in order to realize the ETC (Electronic Toll Collection System), a manufacturer has introduced a traffic card with a built-in battery, which has a structure as shown in FIG. 2, and has a first antenna 210 as a signal receiver. Tolls are deducted, and the second antenna 220 on the other side can be used as a charging coil for the battery. Since the two antennas are separately arranged, this will make the already very cramped configuration area smaller, resulting in a smaller configuration. The second antenna 220 will reduce its charging efficiency due to the electromagnetic shielding effect. Therefore, how to design a high energy storage battery and a high charging efficiency antenna in a limited circuit area to increase the power supply efficiency and charging efficiency is an important issue.

In view of the above, the purpose of the present invention is to provide an antenna battery module capable of assembling an antenna unit, a battery unit and other electronic components in a circuit substrate, overcoming an excessively large circuit board area due to excessive component placement on the circuit substrate or The problem of excessive thickness.

The purpose of the present invention is to provide an antenna battery module. By directly forming an active material layer of a battery unit on a circuit substrate, the circuit substrate can be directly used for current collection, thereby reducing the relationship between the battery unit and the circuit substrate. The resistance value, while using the circuit substrate as part of the package of the battery unit, can provide a good sealing effect of water blocking and gas barrier.

The purpose of the present invention is to provide an antenna battery module that surrounds an antenna unit in a front projection direction of a battery unit, and the antenna unit and the battery unit are at least partially aligned, completely aligned, and partially in a right projection direction. Overlap or no overlap at all, wherein the antenna unit and the battery unit have a spacing of not less than 5 cm in the forward projection direction without overlapping, and a wired charging efficiency close to 100% can be obtained.

The purpose of this creation is to provide an antenna battery module that is transparent Modular design to integrate antenna units, battery cells and other electronic components to reduce the complexity of developing electronic applications such as smart cards.

Therefore, in order to achieve the above object, the present invention discloses an antenna battery module comprising a battery unit and an antenna unit, the battery unit having a collector substrate, a circuit substrate, an electrochemical system layer and a plastic frame. The electrochemical system layer is sealed in the current collecting substrate, the circuit substrate and the plastic frame, and the antenna unit is disposed on the circuit substrate. Thereby, the battery unit and the antenna unit of the present invention can be closely arranged to effectively reduce the area of the circuit substrate. The antenna unit is disposed in the layout area and is orthographically wound around the battery unit.

According to an antenna battery module disclosed in the present invention, since the antenna unit is disposed around the battery unit and viewed in a front projection direction, the antenna unit and the battery unit can be at least partially aligned, completely aligned, partially overlapped, or not overlapped at all. Therefore, the area of the circuit substrate can be effectively utilized. Further, when the circuit substrate is a double-sided circuit substrate, other electronic components can be disposed on the surface of the circuit substrate corresponding to the battery unit, so that the circuit can be omitted. Under the premise of the substrate, the electronic components on the battery unit and the circuit substrate are effectively integrated. In addition, in order to electrically connect the antenna unit, the battery unit and other electronic components, the metal signal wires etched on the circuit substrate are electrically connected to all of the components, and the metal signal wires are electrically connected to the outside. The control unit (eg, integrated circuit, charging circuit, wireless signal processor, display unit, etc.) is optimized to achieve an optimal balance between capacitance and antenna performance.

200‧‧‧Smart Card

202‧‧‧Control unit

204‧‧‧ battery unit

206‧‧‧ memory unit

208‧‧‧Display unit

210‧‧‧Antenna

212‧‧‧ button group

210‧‧‧first antenna

220‧‧‧second antenna

1‧‧‧Antenna battery module

14‧‧‧ battery unit

142‧‧‧ Collecting substrate

144‧‧‧ circuit board

146‧‧‧Electrical system layer

148‧‧‧ plastic frame

16‧‧‧Antenna unit

18‧‧‧Electronic components

2‧‧‧Smart Card

222‧‧‧ upper surface

224‧‧‧ lower surface

242‧‧‧Key circuit

244‧‧‧ button

262, 264‧ ‧ metal guides

28‧‧‧ motherboard

A1‧‧‧ circuit layer

A2‧‧‧ circuit layer

C1, C2‧‧‧ connection points

D‧‧‧ spacing

M‧‧‧ display unit

T1, T2‧‧‧Electrical Department

Figure 1 is a system architecture diagram of a prior art smart card.

Figure 2 is a schematic diagram of a prior art traffic card.

2A is a schematic structural view of the antenna battery module of the present invention.

Fig. 2B is a schematic cross-sectional view of Fig. 2A.

3A, 3B, 3C, and 3D are schematic cross-sectional views of an embodiment of the antenna battery module of the present invention.

Figure 4 is a schematic cross-section of the antenna module and electronic components of the creation. Figure.

Figure 5 is a schematic diagram of the decomposition of the antenna battery module of the present invention applied to the smart card.

Fig. 6A and Fig. 6B are schematic diagrams showing the front and back sides of another smart card applied to the antenna module of the present invention.

This creation will disclose various embodiments of an antenna battery module. The technical features and advantages of the present invention are described in detail in the following embodiments, which are sufficient to enable anyone skilled in the art to understand the technical contents of the present invention and to implement the contents, the scope of the patent application and the drawings. Any related art and related art can easily understand the related purposes and advantages of the present invention.

Please also refer to FIG. 2A and FIG. 2B. FIG. 2A is a schematic structural view of the antenna battery module of the present invention, and FIG. 2B is a schematic cross-sectional view of FIG. 2A.

The antenna battery module 1 includes a battery unit 14 and an antenna unit 16, wherein the battery unit 14 has a collector substrate 142, a circuit substrate 144, an electrochemical system layer 146 and a plastic frame 148, and an electrochemical system layer 146. The collector layer 142 and the circuit board 144 are electrically connected to each other, and the electrochemical system layer 146 and the frame 148 are sandwiched between the collector substrate 142 and the circuit substrate 144 in the front projection direction, so that the electrochemical system layer 146 is sealed in the set. The electric substrate 142, the circuit substrate 144, and the plastic frame 148 are included. Viewed in the forward projection direction, the antenna unit 16 of the present embodiment is closely surrounding the battery unit 14, and the antenna unit 16 and the battery unit 14 do not overlap at all in the forward projection direction. However, in other implementations, the antenna unit 16 and the battery unit 14 may be less tightly wrapped in the forward projection direction in addition to the closely surrounding type described above (between the antenna unit 16 and the battery unit 14) A larger pitch) may be used to bend the circuit substrate 144 to cause the antenna unit 16 and the battery unit 14 to exhibit a tight or less tight surrounding pattern in the forward projection direction.

In addition, the battery unit 14 has two conductive portions T1 and T2, and the antenna unit 16 has two connection points C1 and C2, and each of the conductive portions T1 and T2 and the corresponding connection points C1 and C2 are electrically connected through a wire. It can be said that the wires connecting the conductive portions T1 and T2 and the connection points C1 and C2 (not shown) can be spanned across the antenna unit 16, The interference of the low electromagnetic effect is not more than 150 micrometers across the width of the antenna unit 16 and may be buried in the circuit substrate 144 by means of a buried wire design. In this aspect, the conductive portion T1 may be retained. The T2 and the connection points C1 and C2 are on the surface of the circuit substrate. The at least one conductive portion and its corresponding connection point may be integrated into a single end point to simplify the layout design on the circuit substrate 144 and reduce the area of the circuit substrate 144.

The collector substrate 142 can be a circuit board in addition to a general metal collector layer. Therefore, when the collector substrate 142 is a circuit board, it is like a circuit board 144. In practical application and design. The circuit board 144 can be a single-sided circuit board or a double-sided circuit board. When the circuit board 144 is a double-sided circuit board, the circuit board 144 has two circuit layers A1 and A2, and the battery unit 14 and the antenna unit 16 can be respectively located at the same position. The circuit layer A1 has a cross-sectional structure as shown in FIG. 2B, which includes the battery unit 14 and the antenna unit 16 on the same circuit layer A1; in FIG. 3A, the battery unit 14 and the antenna unit are exposed. 16 are respectively located on different circuit layers A1 and A2 of the circuit substrate 144; or, according to specific requirements, as shown in FIG. 3B, FIG. 3C and FIG. 3D, the states are respectively The layout design of two antenna elements 16 and one battery unit 14 in different circuit layers A1 and A2, the layout design of one antenna unit 16 and two battery units 14 in different circuit layers A1 and A2, and two Antenna unit 16 and two points at different circuit layers A1, A2 Bits in a different circuit layers A1, A2 design of the battery cell 14.

In addition, in the embodiment shown in FIGS. 3A and 3B, when other electronic components 18 are to be collectively arranged on the circuit substrate 144, in the present embodiment, the layout can be different from that of the battery unit 14. The layout of the circuit is performed on the circuit layer A1 or A2, that is, the type corresponding to the battery unit 14, wherein the electronic component 18 can be, for example but not limited to, a button module, a display module or any other electronic component module. .

Referring again to FIG. 4, the antenna unit 16 in this embodiment surrounds the battery unit 14 in the forward projection direction, but in the area surrounded by the antenna unit 16, in addition to the area in which the battery unit 14 can be accommodated. In addition, there is room for other electronic components 18 or another battery unit (not shown), so that when the electronic component 18 or another battery cell is to be laid out, it can be disposed on the same circuit layer as the battery unit 14. And determining the modules and battery sheets according to the characteristics of the electronic components 18. The necessary spacing between the elements 14 and the antenna elements 16 to avoid electromagnetic shielding effects affecting their electrical performance.

The circuit board 144 of the present invention may be a single-layer circuit board or a two-layer circuit board. The material of the two-layer circuit board may be a paper phenol copper substrate or a paper epoxy resin (Epoxy) copper substrate. a soft copper substrate such as a glass-Epoxy copper substrate, a Glass Composite copper substrate, a benzene resin copper substrate, or a polymer or a polyester material; wherein the electrical component layout region of the circuit substrate 144 is laser-engraved and etched. The antenna unit 16 is formed by mechanical processing, sputtering, evaporation, coating, etc., and the common antenna structure has a spiral shape, a linear shape, a block shape, and the like; in addition, the battery unit 144 has a battery unit on the surface thereof. In addition to the antenna unit, the remaining surface may be covered with a protective layer (not shown), and the material may be selected from electrical insulating materials, chemical insulating materials, etc., and the material thereof may be, for example, polyimide (PI). , polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polystyrene (PS), polypropylene (PP), polyvinyl chloride (PVC), poly-p-phenylene Butylene formate (PBT), polyethylene (PE; high density poly Ene (HDPE), low density polyethylene (LDPE), etc.), polyamide (PA), acrylic resin (Acrylic), epoxy resin (Epoxy) or a polymer material such as fiberglass. The electrochemical system layer 146 in the battery unit 14 is directly formed on the metal surface of the circuit substrate 144 (for example, the surface of the copper metal layer), and the circuit substrate 144 is one of the collector layers of the battery unit 14, in other words, electrified. One of the active material layers (eg, the negative active material layer) of the system layer 146 is formed directly on the circuit substrate 144, so that no additional connection is required between the electrochemical system layer 146 and the circuit substrate 144 to place the electrochemical system layer 146. Electrically connecting with the circuit board 144 not only reduces the internal resistance of the battery unit by a large contact area, but also simplifies the complexity of the process or circuit design; moreover, the electrochemical system layer 146 further includes at least one a separator (not shown), the separator may be selected from the group consisting of micron-sized and nano-sized titanium dioxide (TiO2), aluminum oxide (Al2O3), cerium oxide (SiO2), and alkylated ceramic particles. The electrochemical system layer 146 can achieve ion conduction when performing electrochemical reaction, and is combined with polyvinylidene fluoride (PVDF), polyvinylidene fluoride-co-trichloroethylene (PVDF-HFP), and poly Polytetrafluoroethene (PTFE), acrylic Polymeric granules such as Acrylic Acid Glue, Epoxy, Polyethylene Oxide (PEO), Polyacrylonitrile (PAN) or Polyimide (PI) are polymerized; of course, similar On the surface of the circuit board 144, in order to ensure that the battery unit 14 can have a good water blocking and gas barrier effect, the outer surface of the battery unit 14 (including the current collecting substrate 142) may be covered with polyimide (PI). ), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polystyrene (PS), polypropylene (PP), polyvinyl chloride (PVC), polyparaphenyl Butane dicarboxylate (PBT), polyethylene (PE; high density polyethylene (HDPE), low density polyethylene (LDPE), etc.), polydecylamine (PA), acrylic resin (Acrylic), epoxy resin A cover layer made of a polymer material such as (Epoxy) or glass fiber to ensure the insulation of the battery unit 14 from the outside.

In practical applications, the antenna unit 16 of the present invention can be an inductive antenna. Therefore, the data format of the Universal Asynchronous Receiver Transmitter (UART) can be used as the data transmission of the NFC. The method is Non-Return-to-Zero (NRZ) coding. On the other hand, the antenna unit 16 can also be used as an electromagnetic induction wireless charging antenna, and is compatible with A4WP (Alliance for Wireless Power) and PMA (Power Matters Alliance). And WPC (Wireless Power Consortium)... and other standard formats developed by the alliance; in addition, the antenna unit 16 can be used as a Bluetooth function module, a WIFI function module, an LTE function module or a 3G function module according to different functional requirements. .. etc., the antenna use of any combination of the above functional modules.

In order to prevent the magnetic lines of force that can be induced by the antenna unit 16 from being shielded by the battery unit 14, the layout of the preferred antenna unit 16 is the minimum spacing between any edge of the battery unit 14 and the antenna unit 16 (refer to Figure 2B). The D) shown is not less than 2 cm. According to the actual data, when the antenna unit and the battery unit are aligned or overlapped in the forward projection direction, the wireless charging efficiency is about 10 of the wired charging efficiency due to the electromagnetic shielding effect of the antenna unit and the battery unit. -15%, wherein the wired charging mode refers to a direct contact type charger; when the spacing between the antenna unit 16 and the battery unit 14 is designed to be less than 2 cm but not aligned or overlapped, because the antenna unit 16 The electromagnetic shielding effect with the battery unit 14 is relatively changed Good, but for the battery unit 14, the wireless charging efficiency in this aspect is still only about 40% of the wired charging efficiency; when the spacing between the antenna unit 16 and the battery unit 14 is designed to be expanded to 2 cm, at this time The wireless charging efficiency can be raised back to about 60%; when the distance between the antenna unit 16 and the battery unit 14 is increased to 3 cm, the power supply efficiency can be about 80%; once the distance between the antenna unit 16 and the battery unit 14 is greater than 6 cm After the above, the wireless charging efficiency provided by the antenna unit 16 is almost the same as the wired charging efficiency of the direct contact type charger, that is, the wireless charging efficiency is nearly 100%. Therefore, in order to reduce the influence of the shielding effect, the spacing between the antenna unit 16 and the battery unit 14 is of course as far as possible, but under a limited area of the circuit substrate 144, excessive spacing still sacrifices excessive circuit layout. The lack of area, or in some products, although the antenna unit and the battery unit are in a close or overlapping manner, resulting in poor charging efficiency, but because the product itself has low charging requirements, the overall antenna battery module is maintained. The size can be kept in a small design, and the effect on the charging effect is not too serious.

Please refer to Figure 5, which is an exploded view of the smart battery module applied to the smart card. Since the smart card 2 not only needs to dynamically generate the security code in operation, but also can be used as the security code input for confirmation of the credit transaction, for example, the credit card number or the effective year and month contained in the upper surface 222, or the lower surface 224 can be input. Checking the code, so when the button circuit 242 is triggered by the user pressing the button 244, the button signal is transmitted to the output of the metal guide 264 via the signal line, and the antenna battery module 1 also passes through the metal guide 262 to the motherboard 28 The power supply is calculated by the control unit in the motherboard 28, and the operation result is transmitted to the receiving end by the sensing antenna unit 16 or displayed on the display unit M by means of electromagnetic signals. The receiving end includes a sensing circuit of the tablet, or other devices that receive electromagnetic signals, such as a payment-sensitive card reader installed in front of the store checkout counter, or a sensor for wirelessly charging the mobile phone. In addition, according to the smart card specification of iso78165, two of the eight metal pins in contact with the card reader of the smart card 2, Vcc and Vpp, can supply power to the integrated circuit inside the smart card 2, so even if not Through the inductive charging mode, the charging circuit of the motherboard 28 can still obtain external power through the two pins to charge the battery unit 14. Wherein, the metal guides 262 and 264 are used as the antenna battery module 1 and the control unit for sensing Charging or button circuit 242 signal output interface, in addition to copper foil can also be plated with tin, indium, silver, brass, bronze or gold to increase corrosion, oxidation and electrical conductivity.

Please refer to FIG. 6A and FIG. 6B , which are schematic diagrams of the front and back sides of the smart battery module applied to another smart card. The difference from the above embodiment is that the antenna unit 16 and the battery unit in this embodiment are used. 14. The electronic component 18 (such as the button circuit 242 shown in the figure) and the display unit M are all disposed on the two circuit layers A1 and A2 of the same circuit substrate 144 by signal lines, and no additional metal guide is needed. Since the antenna unit 16 is disposed around the outermost periphery of the entire smart card 2, the antenna circuit 16 can perform signal transmission or wireless charging as long as it partially contacts the receiving end.

However, the above is only a preferred embodiment of the present invention, and when it is not possible to limit the scope of the present invention, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification are It is still within the scope of this new patent. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application attached.

1‧‧‧Antenna battery module

14‧‧‧ battery unit

142‧‧‧ Collecting substrate

144‧‧‧ circuit board

146‧‧‧Electrical system layer

148‧‧‧ plastic frame

16‧‧‧Antenna unit

18‧‧‧Electronic components

A1, A2‧‧‧ circuit layer

D‧‧‧ spacing

Claims (11)

An antenna battery module includes: a battery unit having a collector substrate, a circuit substrate, an electrochemical system layer, and a plastic frame, the electrochemical system layer and the current collecting substrate and the circuit substrate Connecting the electrochemical system layer and the plastic frame to the current collecting substrate and the circuit substrate in a front projection direction, and sealing the electrochemical system layer to the current collecting substrate, the circuit substrate and the plastic frame And an antenna unit disposed on the circuit substrate, and the antenna unit surrounds the battery unit in a right projection direction. The antenna battery module of claim 1, wherein the electrochemical system layer comprises: a layer of two active materials, wherein the active material layer is directly formed on the current collecting substrate and electrically connected thereto, and the other active layer The material layer is directly formed on the circuit substrate and electrically connected thereto; an isolation layer is sandwiched between the active material layers; and an electrolyte is dispersed in the active material layer and the isolation layer. The antenna battery module of claim 1, wherein the circuit substrate further has two circuit surfaces, and the battery unit and the antenna unit are respectively located on the same circuit surface of the circuit substrate or different circuit surfaces. The antenna battery module of claim 1, wherein the antenna unit surrounds the battery unit in a right projection direction, and the antenna unit and the battery unit are at least partially aligned and completely aligned in a right projection direction. Partially overlapping or not overlapping at all. The antenna battery module of claim 1, wherein the antenna unit is more orbitally surrounding the battery unit after bending the circuit substrate, and the antenna unit and the battery unit are at least in a right projection direction. Partially affixed, fully affixed, partially overlapping or not overlapping at all. The antenna battery module of claim 1, wherein the antenna unit is more closely surrounding the battery unit in a right projection direction, and the antenna unit and the battery unit are at least partially aligned and completely attached in a right projection direction. Uniform, partially overlapping or not overlapping at all. The antenna battery module of claim 1, wherein the battery unit has two conductive portions and the antenna unit has two connection points. The antenna battery module of claim 7, wherein each of the conductive portions and each of the connection points are electrically connected by a wire, and the wire can be straddle the antenna unit or embedded in the circuit substrate. The antenna battery module of claim 7, wherein at least one of the conductive portions is integrated with the corresponding connection point as a single end point. The antenna battery module of claim 8, wherein the wire has a width of no more than 150 micrometers. The antenna battery module of claim 1, wherein the current collecting substrate is more than a single-sided circuit board or a double-sided circuit board, and the antenna unit can be disposed on the current collecting substrate and the circuit substrate at the same time.