WO2022169306A1 - 안테나 모듈, 무선 전력 전송 시스템 및 휴대 단말용 케이스 - Google Patents
안테나 모듈, 무선 전력 전송 시스템 및 휴대 단말용 케이스 Download PDFInfo
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- WO2022169306A1 WO2022169306A1 PCT/KR2022/001769 KR2022001769W WO2022169306A1 WO 2022169306 A1 WO2022169306 A1 WO 2022169306A1 KR 2022001769 W KR2022001769 W KR 2022001769W WO 2022169306 A1 WO2022169306 A1 WO 2022169306A1
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- magnet array
- magnet
- radiation pattern
- disposed
- housing
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
-
- 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
- H01F27/02—Casings
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0247—Orientating, locating, transporting arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/248—Supports; Mounting means by structural association with other equipment or articles with receiving set provided with an AC/DC converting device, e.g. rectennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
- H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C2011/002—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
Definitions
- the present invention relates to an antenna module supporting wireless power transmission, a wireless power transmission system, and a case for a portable terminal.
- the mobile terminal charges the built-in battery using a charging cable, and is driven by the power charged in the battery.
- a wireless power transmission technology has been developed, a method of wirelessly charging a battery using a wireless power transmission technology is being applied to a mobile terminal.
- Wireless charging is a charging method that wirelessly transmits power through coil-shaped antennas built into the transmitting side (Tx, charger) and the receiving side (R, mobile terminal), respectively.
- wireless charging has a constant charging efficiency even when the antenna of the transmitting side and the antenna of the receiving side are not accurately aligned.
- the present invention has been proposed to solve the above problems, and among the entire area of the shielding sheet, a partial area overlapping the magnet mounted on the antenna sheet is punched out to prevent the shielding sheet from being magnetically saturated (magnetized) by the magnet. It aims to provide a module.
- the present invention aligns the receiving antenna module and the transmitting antenna module in the correct position through magnetic coupling between the magnetic body of the receiving antenna module disposed in the mobile terminal and the magnetic body of the transmitting antenna module installed in the charger through magnetic coupling. Another object is to provide a wireless power transmission system as much as possible.
- the present invention is provided with a magnetic body disposed along the outer periphery of the receiving antenna module built into the portable terminal when mounted on the portable terminal, through magnetic coupling with the magnetic body of the transmitting antenna module, the receiving antenna module and the transmitting antenna
- Another object of the present invention is to provide a case for a mobile terminal in which a module is aligned in an accurate position.
- a wireless power transmission system includes a reception antenna module for receiving wireless power and a transmission antenna module for transmitting wireless power, and the transmission antenna module is made of a magnetic material.
- the formed first housing, the second housing disposed under the first housing to face the receiving antenna module, the transmitting coil interposed between the first housing and the second housing, and the first housing and the second housing interposed between the first housing and the second housing and a transmitting-side magnet array disposed along the outer periphery of the transmitting coil.
- a mobile terminal includes an outer housing and a magnet array in which an S pole magnet and an N pole magnet are alternately arranged and disposed on the outer housing.
- the antenna module has an effect of preventing magnetic saturation (magnetization) of the shielding sheet by the magnet by punching out a partial area overlapping the magnet mounted on the antenna sheet among the entire area of the shielding sheet.
- the antenna module has an effect of preventing a decrease in the shielding performance of the shielding sheet by punching out a partial area overlapping the magnet mounted on the antenna sheet among the entire area of the shielding sheet.
- the antenna module punches out a partial area overlapping the magnet mounted on the antenna sheet among the entire area of the shielding sheet to prevent the shielding sheet from being magnetically saturated (magnetized) by the magnet, so that the antenna module such as inductance, charging efficiency, etc. There is an effect that can prevent deterioration of properties.
- the wireless power transmission system minimizes interference by the magnetic force of the transmitting-side magnet array while aligning the transmitting coil and the receiving coil in the correct position by arranging the shield substrate on the upper surface, the outer circumferential surface, and the inner circumferential surface of the transmitting-side magnet array. There is an effect that can minimize a decrease in wireless power transmission efficiency.
- the case for mobile terminals minimizes the decrease in wireless power transmission efficiency to align the transmitting coil and the receiving coil in the correct position even when using a mobile terminal in which only the receiving coil is mounted without a magnet array by molding the magnet array in the outer housing. can have an effect.
- FIG. 1 is a view for explaining an antenna module according to an embodiment of the present invention.
- Figure 2 is a top view for explaining the antenna sheet of Figure 1
- Figure 3 is a bottom view for explaining the antenna sheet of Figure 2;
- 4 and 5 are views for explaining the first magnet array and the second magnet array of FIG.
- FIG. 6 is a view for explaining the magnetic sheet of FIG.
- FIG. 7 is a view for explaining a stacked structure of an antenna module according to an embodiment of the present invention.
- FIG 8 is a view for explaining a modified example of the stacked structure of the antenna module according to an embodiment of the present invention.
- FIG 9 and 10 are views for explaining a modified example of the antenna module according to an embodiment of the present invention.
- FIG. 11 is a view for explaining a wireless power transmission system according to an embodiment of the present invention.
- FIG. 12 is a view for explaining the antenna module for transmission of FIG. 11;
- FIG. 13 is a view for explaining the first housing of FIG. 11 ;
- FIG. 14 is a view for explaining the second housing of FIG. 11 ;
- FIG. 15 is a view for explaining the transmission coil of FIG. 11; FIG.
- 16 and 17 are diagrams for explaining the transmission-side magnet array of FIG. 11;
- FIG. 18 is a diagram for explaining a modified example of a wireless power transmission system according to an embodiment of the present invention.
- 19 is a cross-sectional view taken along line A-A' of the transmission-side magnet array of FIG. 18;
- 20 and 21 are views for explaining a case for a mobile terminal according to an embodiment of the present invention.
- FIG. 22 is a view for explaining the magnet array of FIGS. 20 and 21;
- FIG. 23 is a view for explaining a modified example of a case for a mobile terminal according to an embodiment of the present invention.
- each layer (film), region, pattern or structure is assumed to be formed “on” or “under” the substrate, each layer (film), region, pad or patterns.
- "on” and “under” include both “directly” or “indirectly” formed through another layer.
- the standards for above or below each floor are based on the drawings.
- the antenna module includes an antenna sheet 100 having a first surface and a second surface, and a shielding sheet 200 disposed on the second surface of the antenna sheet 100 . is composed by
- a plurality of radiation patterns resonating in different frequency bands are formed on the antenna sheet 100 .
- the first radiation pattern 120 for wireless power reception and the second radiation pattern 130 for short-range communication are formed on the antenna sheet 100 .
- a magnet for inducing alignment between the antenna sheet 100 and the wireless charger is disposed on the antenna sheet 100 .
- An arc-shaped magnet is disposed on the antenna sheet 100 along the outer periphery of the first radiation pattern 120 .
- the antenna sheet 100 is a base sheet 110, a first radiation pattern 120, a second radiation pattern 130, a first magnet array 140 and a second magnet array ( 150).
- the base sheet 110 is a plate-shaped substrate having a first surface and a light second surface.
- the base sheet 110 is a resin sheet formed of a material such as polyimide.
- the first radiation pattern 120 is a radiation pattern for wireless power reception.
- the first radiation pattern 120 includes an upper radiation pattern 121 and a lower radiation pattern 122 .
- the upper radiation pattern 121 is formed on the first surface of the base sheet 110 , and forms a first loop wound a plurality of times on the first surface of the base sheet 110 .
- the upper radiation pattern 121 includes an entry path R1 through which the second radiation pattern 130 enters the inner periphery of the first loop from the outside of the first loop, and the second radiation pattern 130 includes the inner periphery of the first loop. to form an exit path R2 leading to the outside of the first loop.
- the entry path R1 and the exit path R2 mean paths that the second radiation pattern 130 traverses to form an inner loop in the inner peripheral region of the first loop.
- the entry path R1 and the exit path R2 extend from the inner periphery of the first loop to the outer periphery to cross the first radiation pattern 120 .
- the entry path R1 and the exit path R2 are spaces in which the first radiation pattern 120 is not formed in the first loop, and the first radiation pattern 120 is formed in the entry path R1 and the exit path R2. not placed
- the lower radiation pattern 122 is formed on the second surface of the base sheet 110 and forms a second loop wound a plurality of times on the second surface of the base sheet 110 .
- the lower radiation pattern 122 is connected to the upper radiation pattern 121 through a plurality of via holes penetrating the base sheet 110 .
- the outer diameter of the first loop of the upper radiation pattern 121 and the second loop of the lower radiation pattern 122 is approximately 38 phi .
- the second radiation pattern 130 is formed on the first surface of the base sheet 110 .
- the second radiation pattern 130 enters the inner periphery of the first loop of the first radiation pattern 120 through the entry path R1 to form an inner loop in the inner periphery of the first loop.
- the second radiation pattern 130 advances to the outside of the first loop of the first radiation pattern 120 through the outgoing path R2 .
- the second radiation pattern 130 is wound a plurality of times on the first surface of the base sheet 110 to form a third loop.
- a through hole through which the first magnet array 140 and the second magnet array 150 pass is formed in the base sheet 110 .
- a first through hole through which the first magnet array 140 passes and a second through hole through which the second magnet array 150 passes are formed in the base sheet 110 .
- the first through hole and the second through hole are formed to be spaced apart from the outer periphery of the loop formed by the first radiation pattern 120 by a predetermined distance or more. In this case, it is assumed that the first through hole and the second through hole are spaced apart from the outer periphery of the first radiation pattern 120 by approximately 1 mm.
- the first magnet array 140 is configured by arranging a plurality of magnets in an arc shape. One end of the first magnet array 140 passes through the first through hole of the base sheet 110 and is disposed on the first surface and the second surface of the first base sheet 110 .
- the first magnet array 140 includes a plurality of first magnet units 141 disposed along the outer periphery of the first radiation pattern 120 to form an arc shape.
- the first magnet unit 141 is an S-pole permanent magnet 142 disposed to be spaced apart from the outer periphery of the first radiation pattern 120, and an S-pole permanent magnet 142 disposed to be spaced apart from the outer periphery of the first radiation pattern 120. ) and an N-pole permanent magnet 143 disposed between the outer periphery of the first radiation pattern 120 .
- the second magnet array 150 is configured by arranging a plurality of magnets in an arc shape. One end of the second magnet array 150 passes through the second through hole of the base sheet 110 and is disposed on the first and second surfaces of the first base sheet 110 .
- the second magnet array 150 includes a plurality of second magnet units 151 disposed along the outer periphery of the first radiation pattern 120 to form an arc shape.
- the second magnet unit 151 is an S pole permanent magnet 152 disposed to be spaced apart from the outer periphery of the first radiation pattern 120 , and an S pole permanent magnet 152 disposed to be spaced apart from the outer periphery of the first radiation pattern 120 .
- an N-pole permanent magnet 153 disposed between the outer periphery of the first radiation pattern 120 .
- the first magnet array 140 is disposed counterclockwise along the outer periphery of the first radiation pattern 120 from a position adjacent to the entry path R1 of the first radiation pattern 120 to a position adjacent to the exit path R2 of the first radiation pattern 120 .
- the second magnet array 150 is disposed counterclockwise along the outer periphery of the first radiation pattern 120 from a position adjacent to the exit path R2 of the first radiation pattern 120 to a position adjacent to the entry path R1 of the first radiation pattern 120 . do.
- the first magnet array 140 and the second magnet array 150 are disposed so that both ends face each other, and are spaced apart from each other to form an entry path R1 and an exit path R2 of the second radiation pattern 130 . do.
- N-pole permanent magnets 143 and 153 are disposed on the inside, and S-pole permanent magnets 142 and 152 are disposed on the outside. to form an annular shape.
- the N-pole permanent magnets 143 and 153 and the S-pole permanent magnets 142 and 152 constituting the first magnet array 140 and the second magnet array 150 are formed in an arc shape having an angle of approximately 20 degrees. do.
- the arc-shaped inner periphery diameter d1 formed by the first magnet array 140 and the second magnet array 150 has a diameter of about 38 mm, and the annular outer periphery diameter d2 is about 46 mm. have a diameter
- the S pole permanent magnets 142 and 152 and the N pole permanent magnets 143 and 153 constituting the first magnet array 140 and the second magnet array 150 have a width of about 3 mm and a thickness of about 300 ⁇ m. It is about 400 ⁇ m.
- the first magnet array 140 and the second magnet array 150 may be replaced with the receiving-side magnet array 160 integrally formed.
- the receiving-side magnet array 160 is configured by alternately disposed S-pole permanent magnets 162 and N-pole permanent magnets 164 .
- the receiving-side magnet array 160 may be formed to have a path through which at least a portion is opened and other structures pass therethrough.
- the shielding sheet 200 is a plate-shaped substrate formed of a magnetic material having a first surface and a second surface, and is laminated on the second surface of the base sheet 110 .
- the N-pole permanent magnets 143 and 153 and the S-pole permanent magnets 142 and 152 When the shielding sheet 200 overlaps with the first magnet array 140 and the second magnet array 150 , the N-pole permanent magnets 143 and 153 and the S-pole permanent magnets 142 and 152 generate magnetism. It is magnetically saturated (magnetized), and thus shielding performance may be deteriorated, or antenna characteristics such as inductance and charging efficiency may be changed.
- the shielding sheet 200 is magnetically saturated by the magnet. (magnetization) to prevent deterioration of the characteristics of the antenna module such as deterioration of shielding performance, inductance, charging efficiency, etc.
- an overlap prevention hole is formed in an area overlapping the first magnet array 140 and the second magnet array 150 of the base sheet 110 . That is, the overlap prevention hole is formed by removing (punching) the area overlapping the first magnet array 140 and the second magnet array 150 among the entire area of the shielding sheet 200 .
- a first anti-overlapping hole 210 corresponding to the first magnet array 140 and a second anti-overlapping hole 220 corresponding to the second magnet array 150 are formed in the shielding sheet 200 .
- the first overlap prevention hole 210 may overlap the first through hole formed in the base sheet 110
- the second overlap prevention hole 220 may overlap the second through hole formed in the base sheet 110 .
- the antenna module may further include a protective sheet 300 laminated on the first surface of the base sheet 110 and a heat dissipation sheet 400 laminated on the second surface of the shielding sheet 200 .
- the thickness of the first radiation pattern 120 and the thickness (or the number of layers) of the shielding sheet 200 may be appropriately selected according to the thickness of the first magnet array 140 and the second magnet array 150 .
- the first magnet array 140 and the second magnet array 150 are accommodated in the anti-overlapping hole. That is, a part of the first magnet array 140 is accommodated in the first through-hole of the base sheet 110, and the other part (the end of the first magnet array 140 penetrating the first through-hole) is part of the shielding sheet ( 200 is accommodated in the first anti-overlapping hole 210 . A part of the second magnet array 150 is accommodated in the second through-hole of the base sheet 110, and the other part (the end of the second magnet array 150 penetrating the second through-hole) is the shielding sheet 200 . is accommodated in the second anti-overlapping hole 220 of the
- the first anti-overlapping hole 210 and the second anti-overlapping hole 220 are provided with a gap 500a between the first magnet array 140 and the second magnet array 150 and the heat dissipation sheet 400 .
- 500b can be formed. That is, the first gap 500a is formed between the end of the first magnet array 140 , the first anti-overlapping hole 210 , and the heat dissipation sheet 400 , and the end of the second magnet array 150 .
- a second gap 500b is formed between the second overlapping prevention hole 220 and the heat dissipation sheet 400 (thermal spread).
- a region S1 in which the second radiation pattern 130 is not formed may exist in the base sheet 110 of the base sheet 110 according to required characteristics. That is, the second radiation pattern 130 may be formed to be adjacent only to the inner peripheral region of the first radiation pattern 120 and two adjacent sides of the base sheet 110 . In this case, a portion of the shielding sheet 200 overlapping the area where the second radiation pattern 130 is not formed may be partially removed.
- the wireless power transmission system is configured to include a reception antenna module 600 installed in a portable terminal 60 and a transmission antenna module 700 installed in a charger. .
- the receiving antenna module 600 is the same as the antenna module described with reference to FIGS. 1 to 10 , a detailed description thereof will be omitted.
- the receiving antenna module 600 may be configured to include only the first radiation pattern without including the second radiation pattern.
- the antenna module for transmission 700 is an antenna module for wirelessly transmitting power for charging the portable terminal 60 .
- the antenna module 700 for transmission is installed in the charger, and when the portable terminal 60 is disposed on the charger, it faces the antenna module 600 for reception and is installed so as to be disposed adjacently.
- the antenna module 700 for transmission includes a first housing 710 , a second housing 720 , a transmission coil 730 , and a transmission-side magnet array 740 .
- the first housing 710 is a substrate located at the top of the drawing.
- the first housing 710 is a shielding substrate for shielding a magnetic field generated during wireless charging.
- the first housing 710 is made of a magnetic material, and is a magnetic material formed of a material such as ferrite, polymer, amorphous ribbon, and nano crystal grains as an example.
- the first housing 710 may be a magnetic material formed of an amorphous ribbon.
- the amorphous ribbon may be a magnetic material including Fe, Si, and B or a magnetic material including Fe, Si and Nb.
- the amorphous ribbon may be a magnetic material including Fe, Si, B, Cu and Nb.
- the first housing 710 may be a magnetic material composed of nanocrystal grains including a nanocrystal grain alloy.
- the first housing 710 may be formed of a magnetic material such as ferrite or polymer.
- the first housing 710 may be formed of a magnetic material in which the same or different types of magnetic components are mixed.
- the first housing 710 may include a first horizontal plate 711 and a first vertical plate 714 .
- the first horizontal plate 711 is a plate-shaped plate formed in a circle. A pair of slits for discharging both ends of the transmission coil 730 accommodated in the first accommodation space to the outside may be formed in the first horizontal plate 711 .
- the first horizontal plate 711 has a first slit 712 for discharging the first end 731 of the transmitting coil 730 to the outside and the second end 732 of the transmitting coil 730 for discharging to the outside.
- a second slit 713 is formed.
- the second slit 713 is spaced apart from the first slit 712 to be shorter than the first slit 712 .
- the length of the second slit 713 is shorter than the length of the first slit 712 .
- the length of the first slit 712 and the second slit 713 may be a length from an end adjacent to the center point of the first horizontal plate 711 to an end disposed on the outer periphery of the first horizontal plate 711 . .
- a portion adjacent to the first end 731 of the transmission coil 730 is accommodated in the first slit 712 , and a portion adjacent to the second end 732 of the transmission coil 730 is accommodated in the second slit 713 . do.
- the first vertical plate 714 is disposed along the outer periphery of the first horizontal plate 711 , and extends below the first vertical plate 714 to form a side surface of the first housing 710 .
- the first housing 710 has a first accommodating space surrounded by the lower surface of the first horizontal plate 711 and the first vertical plate 714 , and the second housing 720 and the transmission coil are formed in the first accommodating space.
- a 730 and a transmission-side magnet array 740 are accommodated.
- the second housing 720 is coupled to the first housing 710 .
- the second housing 720 is coupled to the first housing 710 to be accommodated in the first accommodation space of the first housing 710 .
- the second housing 720 is disposed to face the wireless power receiving module when mounted on the charger.
- the second housing 720 is formed of a material that can pass a magnetic field generated during wireless charging, such as a resin material or a metal material.
- the second housing 720 may include a second horizontal plate 721 , a second vertical plate 722 , and a third vertical plate 723 .
- the second horizontal plate 721 is a plate-shaped substrate formed in a circle.
- the second vertical plate 722 is disposed along the outer periphery of the second horizontal plate 721 , and extends above the second vertical plate 722 to form a side surface of the second housing 720 .
- a second accommodation space 724 is formed in the second housing 720 , surrounded by the upper surface of the second horizontal plate 721 and the second vertical plate 722 .
- the second vertical plate 722 may have a pair of through grooves through which both ends of the transmission coil 730 pass. That is, the second vertical plate 722 has a first through groove 722a for discharging the first end 731 of the transmitting coil 730 to the outside and the second end 732 of the transmitting coil 730 to the outside. A second through-groove 722b for discharging is formed.
- the first through groove 722a is disposed parallel to the first end 731 of the first slit 712 formed in the first vertical plate 714 as the second housing 720 is accommodated in the first housing 710 .
- the second through groove 722b is disposed parallel to the first end 731 of the second slit 713 formed in the first vertical plate 714 as the second housing 720 is accommodated in the first housing 710 . do.
- the third vertical plate 723 extends from the upper surface of the second horizontal plate 721 to the upper portion of the second vertical plate 722 so that the second accommodating space 724 forms an internal partition dividing the two accommodating spaces. .
- the second accommodating space 724 is divided into an internal accommodating space 725 and an external accommodating space 726 by the third vertical plate 723 .
- the transmission coil 730 is accommodated in the inner accommodation space 725
- the transmission-side magnet array 740 is accommodated in the outer accommodation space 726 .
- the transmission coil 730 is a coil for wireless power transmission.
- the transmission coil 730 is formed in a loop shape for winding a virtual winding shaft that vertically penetrates the center points of the first housing 710 and the second housing 720 a plurality of times.
- the transmitting coil 730 may be configured as a plate-shaped loop coil wound a plurality of times on the lower surface of the first housing 710 or wound a plurality of times on the upper surface of the second housing 720 .
- the transmission coil 730 is disposed in the inner accommodation space 725 of the second housing 720 .
- the first end 731 of the transmitting coil 730 is exposed to the outside through the first through groove 722a of the second vertical plate 722 and the first slit 712 of the first horizontal plate 711 .
- the second end 732 of the transmitting coil 730 is exposed to the outside through the second through groove 722b of the second vertical plate 722 and the second slit 713 of the first horizontal plate 711 . .
- the transmitting-side magnet array 740 is magnetically coupled with the magnet array 840 of the receiving antenna module 600 so that the transmitting coil 730 and the receiving coil 860 (that is, the first radiation pattern described above) are in the correct position. lead to sorting. Through this, the wireless power transmission system prevents the wireless power transmission efficiency of the transmitting coil 730 and the receiving coil 860 from being deteriorated.
- the transmission-side magnet array 740 is configured by arranging a plurality of magnets in a circular or arc shape. At this time, the transmission-side magnet array 740 is configured by alternating S-pole permanent magnets 741 and N-pole permanent magnets 742 .
- the transmission-side magnet array 740 is disposed in the outer accommodating space 726 of the second housing 720 , with the third vertical plate 723 of the second housing 720 interposed therebetween and the outer periphery of the transmission coil 730 . placed in a shape surrounding the In this case, the transmission-side magnet array 740 may be formed such that at least a part thereof is opened to have a path through which another structure passes.
- the transmission-side magnet array 740 may include a third magnet array 840 and a fourth magnet array 840 disposed under the third magnet array 840 .
- the third magnet array 840 is configured by alternately arranging an S pole permanent magnet 741 and an N pole permanent magnet 742 in an arc shape.
- the fourth magnet array 840 is configured by alternating N-pole permanent magnets 742 and S-pole permanent magnets 741 arranged in an arc shape.
- the transmission side magnet array 740 has an S pole permanent magnet 741 disposed thereon and an N pole permanent magnet 742 disposed thereon.
- the first laminated magnet 743 disposed on the lower side, and the second laminated magnet 744 with the N-pole permanent magnet 742 disposed on the upper part and the S-pole permanent magnet 741 disposed on the lower part are alternately arranged in an arc shape. configured to be arranged.
- the antenna module 700 for transmission may further include a shielding substrate 750 for shielding the transmission-side magnet array 740 from the surroundings.
- the shielding substrate 750 is disposed along the upper surface, the outer peripheral surface, and the inner peripheral surface of the transmission-side magnet array 740 . Accordingly, the lower surface of the transmitting-side magnet array 740 is exposed to face the receiving-side magnet array 840 , and the upper, outer, and inner peripheral surfaces of the transmitting-side magnet array 740 are shielded by the shielding substrate 750 . Through this, the antenna module 700 for transmission minimizes interference due to the magnetic force of the transmission-side magnet array 740 to minimize a decrease in the wireless power transmission efficiency of the transmission coil 730 .
- the case 800 for a mobile terminal is an external case fitted to the rear surface of the mobile terminal 60 , and an external housing fitted to the mobile terminal 60 ( 820 , and a magnet array 840 molded to the outer housing 820 .
- the outer housing 820 is mainly formed of a resin material.
- the outer housing 820 is made of a resin material such as polyurethane (PU) and thermoplastic polyurethane (TPU) as an example.
- PU polyurethane
- TPU thermoplastic polyurethane
- the outer housing 820 includes a first plate disposed on the rear surface of the portable terminal 60 and a second plate disposed along the side surface of the portable terminal 60 . At this time, an accommodation space for accommodating the mobile terminal 60 is formed by the first plate and the second plate.
- the magnet array 840 is molded into the outer housing 820 .
- the magnet array 840 is configured such that S-pole permanent magnets and N-pole permanent magnets are alternately arranged in a circular or arc shape.
- the magnet array 840 is molded to the first plate of the outer housing 820 .
- the magnet array 840 is disposed on the rear surface of the mobile terminal 60 . At this time, the magnet array 840 is disposed along the outer periphery of the receiving antenna module 600 built in the portable terminal (60).
- the magnet array 840 may be configured such that stacked magnets in which an S pole permanent magnet and an N pole permanent magnet are stacked are alternately arranged in a circular or arc shape.
- the magnet array 840 is a first stacked magnet with an S pole permanent magnet disposed on the top and an N pole permanent magnet disposed on the bottom, and an N pole permanent magnet disposed on the top and an S pole permanent magnet disposed on the bottom.
- the second stacked magnets are configured to be alternately arranged in an arc shape.
- the case 800 for the portable terminal may further include a receiving coil 860 . That is, the case 800 for the portable terminal is fitted and coupled to the portable terminal 60 having a built-in antenna for wireless power reception.
- the portable terminal case 800 applies power received through the receiving coil 860 to the portable terminal 60 , and the portable terminal 60 receives it through the receiving coil 860 of the portable terminal case 800 . It may be configured to charge the built-in battery with one power.
- a shield substrate (not shown) is further disposed between the magnet array 840 and the receiving coil 860 to minimize interference due to the magnetic force of the magnet array 840 to increase the efficiency of wireless power reception of the transport coil 860 . reduction can be minimized.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Telephone Set Structure (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims (20)
- 무선 전력을 수신하는 수신용 안테나 모듈; 및무선 전력을 전송하는 전송용 안테나 모듈을 포함하고,상기 전송용 안테나 모듈은,자성 재질로 형성된 제1 하우징;상기 제1 하우징의 하부에 배치되어 상기 수신용 안테나 모듈과 마주하도록 배치되는 제2 하우징;상기 제1 하우징 및 상기 제2 하우징 사이에 개재된 전송 코일; 및상기 제1 하우징 및 상기 제2 하우징 사이에 개재되어 상기 전송 코일의 외주를 따라 배치된 전송측 자석 어레이를 포함하는 무선 전력 전송 시스템.
- 제1항에 있어서,상기 제1 하우징은,자성 재질의 제1 수평 플레이트; 및자성 재질로 형성되어 상기 제1 수평 플레이트의 외주를 따라 배치된 제1 수직 플레이트를 포함하고,상기 제1 수평 플레이트에는,상기 전송 코일의 제1 단부를 배출하는 제1 슬릿; 및상기 제1 슬릿과 이격되어 상기 제1 슬릿보다 짧게 형성되고, 상기 전송 코일의 제2 단부를 배출하는 제2 슬릿이 형성된 무선 전력 전송 시스템.
- 제1항에 있어서,상기 제2 하우징은,제2 수평 플레이트;상기 제2 수평 플레이트의 외주를 따라 배치된 제2 수직 플레이트; 및상기 제2 수평 플레이트의 제1 면에 형성되어, 상기 제2 수평 플레이트 및 상기 제2 수직 플레이트에 의해 정의된 수용 공간을 내부 수용 공간 및 외부 수용 공간으로 구획하도록 구성된 제3 수직 플레이트를 포함하고,상기 내부 수용 공간은 상기 제3 수직 플레이트의 내주와 상기 제2 수평 플레이트의 제1 면에 의해 정의되는 공간이고,상기 외부 수용 공간은 상기 제2 수평 플레이트의 내주와 상기 제3 수직 플레이트의 외주 및 상기 제2 수평 플레이트의 제1 면에 의해 정의되는 공간인 무선 전력 전송 시스템.
- 제3항에 있어서,상기 제2 수직 플레이트는,상기 제1 하우징의 제1 슬릿의 제1 단부와 나란히 배치되어 상기 전송 코일의 제1 단부를 배출하도록 구성된 제1 관통 홈; 및상기 제1 관통 홈과 이격되고, 상기 제1 하우징의 제2 슬릿의 제1 단부와 나란히 배치되어 상기 전송 코일의 제2 단부를 배출하도록 구성된 제2 관통 홈을 포함하는 무선 전력 전송 시스템.
- 제3항에 있어서,상기 전송 코일은 상기 내부 수용 공간에 배치되고,상기 전송측 자석 어레이는 상기 외부 수용 공간에 배치된 무선 전력 전송 시스템.
- 제1항에 있어서,상기 전송측 자석 어레이는 S극 자석 및 N극 자석이 교대로 배치된 무선 전력 전송 시스템.
- 제1항에 있어서,상기 전송측 자석 어레이는,S극 자석이 N극 자석의 상부에 배치된 제1 적층 자석; 및N극 자석이 S극 자석의 상부에 배치된 제2 적층 자석을 포함하고,상기 제1 적층 자석 및 제2 적층 자석이 교대로 배치된 무선 전력 전송 시스템.
- 제1항에 있어서,상기 전송용 안테나 모듈은,상기 전송측 자석 어레이의 상면과 외주면 및 내주면을 따라 배치되어 상기 수신용 안테나 모듈의 자석 어레이와 마주하는 상기 전송측 자석 어레이의 하면을 노출시키도록 구성된 실드 기재를 더 포함하는 무선 전력 전송 시스템.
- 제1항에 있어서,상기 수신용 안테나 모듈은,방사 패턴이 형성되고, 상기 방사 패턴의 외주를 따라 형성된 자석 어레이가 삽입된 안테나 시트; 및상기 안테나 시트에 적층되고, 상기 자석 어레이와 중첩된 영역에 중첩 방지 홀이 형성된 차폐 시트를 포함하는 무선 전력 전송 시스템.
- 제9항에 있어서,상기 자석 어레이는 상기 방사 패턴의 외주를 따라 환호 형상으로 배열된 복수의 자석 유닛을 포함하고,상기 자석 유닛은,상기 방사 패턴의 외주와 이격되도록 배치된 S극 영구 자석; 및상기 방사 패턴의 외주와 상기 S극 영구 자석 사이에 배치된 N극 영구 자석을 포함하는 무선 전력 전송 시스템.
- 제9항에 있어서,상기 안테나 시트는,제1 관통 홀 및 제2 관통 홀이 형성된 베이스 시트;상기 베이스 시트에 형성되되, 진입 경로 및 진출 경로를 갖는 루프 형상으로 형성된 제1 방사 패턴;상기 베이스 시트에 형성되되, 상기 진입 경로를 통해 상기 제1 방사 패턴의 내주 영역으로 진입하여 내부 루프를 형성하고, 상기 진출 경로를 통해 상기 제1 방사 패턴의 외부에 배치되는 제2 방사 패턴;상기 제1 관통 홀을 관통하고, 상기 제1 방사 패턴의 외주를 따라 배치된 제1 자석 어레이; 및상기 제1 자석 어레이와 이격되어 상기 제2 관통 홀을 관통하고, 상기 제1 방사 패턴의 외주를 따라 배티된 제2 자석 어레이를 포함하는 무선 전력 전송 시스템.
- 제11항에 있어서,상기 제1 방사 패턴은상기 베이스 시트의 제1면에 형성된 상부 방사 패턴; 및상기 베이스 시트의 제2면에 형성되고, 상기 베이스 시트를 관통하는 비아 홀을 통해 상기 상부 방사 패턴과 연결된 하부 방사 패턴을 포함하고,상기 상부 방사 패턴은 상기 진입 경로 및 상기 진출 경로를 갖는 루프 형상으로 형성된 무선 전력 전송 시스템.
- 제11항에 있어서,상기 제1 자석 어레이 및 상기 제2 자석 어레이는 양단이 서로 마주하도록 배치되고, 서로 이격되어 상기 제2 방사 패턴의 진입 경로 및 진출 경로를 형성하는 무선 전력 전송 시스템.
- 제9항에 있어서,상기 안테나 시트는 제1 자석 어레이 및 제2 자석 어레이를 포함하고,상기 차폐 시트에는,상기 제1 자석 어레이와 중첩되는 영역에 형성된 제1 중첩 방지 홀; 및상기 제2 자석 어레이와 중첩되는 영역에 형성된 제2 중첩 방지 홀이 형성된 무선 전력 전송 시스템.
- 제14항에 있어서,상기 제1 자석 어레이는 상기 안테나 시트를 관통하여 상기 제1 중첩 방지 홀에 수용되고, 상기 제2 자석 어레이는 상기 안테나 시트를 관통하여 상기 제2 중첩 방지 홀에 수용된 무선 전력 전송 시스템.
- 제14항에 있어서,상기 차폐 시트에 적층되는 방열 시트를 더 포함하고,상기 제1 중첩 방지 홀은 상기 제1 자석 어레이 및 상기 방열 시트 사이에 제1 공극을 형성하고,상기 제2 중첩 방지 홀은 상기 제2 자석 어레이 및 상기 방열 시트 사이에 제2 공극을 형성하는 무선 전력 전송 시스템.
- 외부 하우징; 및S극 자석 및 N극 자석이 교대로 배치되어 구성되어 상기 외부 하우징에 배치된 자석 어레이를 포함하는 휴대 단말용 케이스.
- 제17항에 있어서,상기 자석 어레이는 상기 외부 하우징에 몰딩되어 상기 외부 하우징에 끼움 결합된 상기 휴대 단말의 후면에 배치되고, 상기 휴대 단말에 내장된 수신용 안테나 모듈의 외주를 따라 배치된 휴대 단말용 케이스.
- 제17항에 있어서,상기 외부 하우징에 형성된 수신 코일을 더 포함하고,상기 자석 어레이는 상기 수신 코일의 외주를 따라 배치된 휴대 단말용 케이스.
- 제19항에 있어서,상기 수신 코일과 상기 자석 어레이 사이에 개재되어 상기 수신 코일과 상기 자석 어레이를 차폐하도록 구성된 실드 기재를 더 포함하는 휴대 단말용 케이스.
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CN202280013678.6A CN116918179A (zh) | 2021-02-05 | 2022-02-04 | 天线模块、无线电力传输系统、以及用于便携式终端的壳体 |
US18/275,874 US20240120772A1 (en) | 2021-02-05 | 2022-02-04 | Antenna module, wireless power transmission system, and case for portable terminal |
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KR10-2021-0016424 | 2021-02-05 | ||
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WO2022169306A1 true WO2022169306A1 (ko) | 2022-08-11 |
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PCT/KR2022/001769 WO2022169306A1 (ko) | 2021-02-05 | 2022-02-04 | 안테나 모듈, 무선 전력 전송 시스템 및 휴대 단말용 케이스 |
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US20140091758A1 (en) * | 2011-06-14 | 2014-04-03 | Panasonic Corporation | Communication apparatus |
KR20190069365A (ko) * | 2016-02-04 | 2019-06-19 | 주식회사 아모센스 | 무선전력 전송모듈용 차폐유닛 및 이를 구비한 무선전력 전송모듈 |
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CN211089831U (zh) * | 2020-01-16 | 2020-07-24 | 深圳市纽格力科技有限公司 | 可无线充电的机顶盒 |
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CN116918179A (zh) | 2023-10-20 |
KR102632874B1 (ko) | 2024-02-05 |
WO2022169162A1 (ko) | 2022-08-11 |
US20240120772A1 (en) | 2024-04-11 |
CN116806397A (zh) | 2023-09-26 |
KR102632878B1 (ko) | 2024-02-05 |
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