WO2011033832A1 - 電池および無線通信機器 - Google Patents
電池および無線通信機器 Download PDFInfo
- Publication number
- WO2011033832A1 WO2011033832A1 PCT/JP2010/060244 JP2010060244W WO2011033832A1 WO 2011033832 A1 WO2011033832 A1 WO 2011033832A1 JP 2010060244 W JP2010060244 W JP 2010060244W WO 2011033832 A1 WO2011033832 A1 WO 2011033832A1
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- WO
- WIPO (PCT)
- Prior art keywords
- battery
- antenna
- circuit member
- resonance frequency
- wireless communication
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3883—Arrangements for mounting batteries or battery chargers
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- 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
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- 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
Definitions
- the present invention relates to a battery and a wireless communication device, and particularly to a battery having a circuit member therein and a wireless communication device equipped with the battery.
- batteries with built-in circuit members such as a charge control circuit have been developed.
- Such a battery may adversely affect the antenna characteristics of the wireless communication device when mounted on the wireless communication device. That is, when a high-frequency current flows through the circuit member, the circuit member operates like an antenna, and deteriorates the radiation characteristics of the antenna included in the wireless communication device. For example, as shown in FIG. 10, the gain in the frequency band of the antenna included in the wireless communication device is reduced.
- FIG. 11 is a perspective view showing a schematic configuration of a battery 900 according to the prior art.
- the battery 900 includes a cell 904 and a circuit member 908 electrically connected to the battery terminal 906 inside a case 902 provided with the battery terminal 906.
- the circuit member 908 is, for example, a charge control circuit.
- FIG. 12 is a cross-sectional view showing a schematic configuration of the wireless communication device 20 on which the battery 900 is mounted.
- the main body 21 of the wireless communication device 20 is provided with an antenna 22, a ground portion 23 of the main body substrate, and a device terminal 24.
- the device terminal 24 and the battery terminal 906 constitute a battery connector. ing.
- arrows indicate the flow of high-frequency current.
- the circuit member 908 operates like an antenna. That is, when the electrical length (electrical length) of the circuit member 908 is close to (1 + 2n) / 4 wavelength (n: integer), a high-frequency current that resonates at that frequency flows through the circuit member 908. Therefore, radiation from the circuit member 908 occurs, and the antenna characteristics of the antenna 22 deteriorate.
- Patent Document 1 discloses an antenna by electrically connecting a conductive portion of a battery and a ground portion of a portable wireless device even in a place other than a battery terminal. A technique for suppressing deterioration of characteristics is disclosed.
- FIG. 13 is a cross-sectional view showing a schematic configuration of the wireless communication device 30 described in Patent Document 1.
- the battery 1000 mounted on the wireless communication device 30 includes a battery terminal 1006, a circuit member 1008 electrically connected to the battery terminal 1006, and a position different from the battery terminal 1006.
- a connection portion 1030 for connecting to 30 ground portions 33 is provided.
- the main body 31 of the wireless communication device 30 is provided with an antenna 32, a device terminal 34 for coupling with the battery terminal 1006, and a connection portion 35 for connection with the connection portion 1030.
- the line and connection portion 35 is connected to the ground portion 33.
- the wireless communication device 30 described in Patent Literature 1 includes a connection portion 35 for electrical connection at a portion other than the battery circuit member and the battery terminal.
- the battery 1000 described in Patent Document 1 includes a connection portion 1030 for electrical connection at a portion other than the ground portion of the wireless communication device and the battery terminal. Thereby, deterioration of the antenna characteristics of the antenna 32 is suppressed.
- Patent Document 1 it is necessary to electrically connect the battery and the ground portion of the wireless communication device at a place other than the battery terminal. For this reason, it is difficult to easily attach and detach the battery, and it is necessary to provide a member for connection on both the battery and the ground portion of the wireless communication device, which increases costs.
- the present invention has been made in view of the above problems, and has as its main object to provide a battery that does not require an electrical connection other than the battery terminal to the device on which it is mounted and that does not easily deteriorate antenna characteristics.
- a battery according to the present invention is provided with a battery terminal, a circuit member electrically connected to the battery terminal, a direct connection or capacitive coupling to the circuit member, and the circuit member. And a resonance frequency adjusting unit that is electrically connected to the battery terminal without going through.
- the resonance frequency adjusting unit is connected to the circuit member, thereby changing the electrical length of the antenna including the circuit member.
- the antenna configured to include the circuit member has the circuit terminal electrically connected to the battery terminal and the battery terminal via the resonance frequency adjusting unit without the circuit member. Since it is electrically connected to the ⁇ antenna, the ⁇ antenna is changed to the 1 ⁇ 2 ⁇ antenna. Therefore, the resonance frequency of the antenna configured to include the circuit member changes greatly.
- the resonance frequency adjusting unit only needs to be connected to the circuit member and the battery terminal, and electrical connection other than the battery terminal to the mounted device is not necessary. Therefore, according to the above configuration, it is possible to provide a battery that does not need to be electrically connected to a device to be mounted other than the battery terminal and is difficult to deteriorate the antenna characteristics.
- the battery according to the present invention also includes a battery terminal, a circuit member electrically connected to the battery terminal, and a direct connection or capacitive coupling to the circuit member, and other than the circuit member is electrically connected. And a resonance frequency adjusting unit that is not provided.
- the resonance frequency adjusting unit is connected to the circuit member, thereby changing the electrical length of the antenna including the circuit member. Therefore, the resonance frequency of the antenna configured to include the circuit member changes. Therefore, even when the resonance of the antenna including the circuit member deteriorates the antenna characteristics of the surrounding antenna when the resonance frequency adjusting unit is not connected to the circuit member, By changing the resonance frequency of the antenna and shifting it out of the frequency band of the antenna (a frequency band used by a wireless communication device or the like equipped with the antenna), deterioration of the antenna characteristics can be avoided.
- the resonance frequency adjusting unit only needs to be connected to the circuit member, and electrical connection other than the battery terminal with the device to be mounted is not necessary. Therefore, according to the above configuration, it is possible to provide a battery that does not need to be electrically connected to a device to be mounted other than the battery terminal and is difficult to deteriorate the antenna characteristics.
- the antenna configured to include the circuit member when the resonance frequency adjusting unit is not connected to the circuit member. Even if the resonance of the antenna deteriorates the antenna characteristics of the surrounding antenna, the resonance frequency of the antenna is changed to change the frequency band of the antenna (the frequency band used by a wireless communication device equipped with the antenna). ) To avoid deterioration of the antenna characteristics.
- the resonance frequency adjusting unit does not need to be electrically connected to a device to be mounted other than the battery terminal. Therefore, according to the present invention, it is possible to provide a battery that does not need to be electrically connected to the mounted device other than the battery terminal, and that is difficult to deteriorate the antenna characteristics.
- FIG. 1 is a perspective view showing a schematic configuration of a battery according to an embodiment (first embodiment) of the present invention. It is sectional drawing which shows schematic structure of the radio
- FIG. 1 is a perspective view showing a schematic configuration of a battery 100 according to one embodiment (first embodiment) of the present invention.
- the battery 100 includes a cell 104, a circuit member 108, and a resonance frequency adjusting unit 110 inside a case 102, and includes a battery terminal 106 exposed from the case 102.
- the battery terminal 106 and the circuit member 108 are directly connected. Further, the circuit member 108 is directly connected to the resonance frequency adjusting unit 110 on the side opposite to the position where it is connected to the battery terminal 106. The resonance frequency adjusting unit 110 is directly connected to the ground line of the battery terminal 106 on the side opposite to the position where it is connected to the circuit member 108.
- the case 102 is a structure for supporting and protecting each member described above, and may be formed of an insulator such as a resin.
- the cell 104 is a cell made of an electrode and an electrolyte used for a general battery.
- a secondary battery such as a lithium ion secondary battery, a lithium ion polymer secondary battery, or a nickel / hydrogen storage battery can be used.
- the present invention is not limited to these, and any other secondary battery, primary battery, solar battery, fuel cell, or a combination of them can be used suitably as long as the cell can discharge direct current.
- the circuit member 108 is composed of a general electric circuit or electronic circuit.
- the circuit member 108 may include a charge control circuit, and other circuits such as a solar battery rechargeable battery. May include a circuit for controlling the current, a charging terminal for charging the battery, a current control circuit for controlling power supply, and the like.
- the circuit member 108 includes a charge control circuit, it is connected to the electrode of the cell 104.
- the circuit member 108 can be configured as a DC circuit, for example.
- the battery terminal 106 constitutes a battery connector between the battery 100 and the device on which the battery 100 is mounted, and can be formed of a conductive substance. That is, as described above, the battery terminal 106 is exposed from the case 102, and the battery terminal 106 can be electrically connected to a device on which the battery 100 is mounted.
- the resonance frequency adjustment unit 110 may be anything that can connect the circuit member 108 and the battery terminal 106 (the ground line thereof) in a DC or AC manner.
- the resonance frequency adjustment unit 110 is a circuit member. Conductor paths directly connected to 108 and battery terminal 106 are used. Other forms of the resonance frequency adjusting unit 110 will be described later.
- the resonance frequency adjusting unit 110 is connected to the circuit member 108, a path including the circuit member 108 is compared with a case where the resonance frequency adjusting unit 110 is not connected to the circuit member 108.
- the antenna constituted by the above path can be changed from a quarter wavelength system to a half wavelength system. Accordingly, even if the device on which the battery 100 is mounted is not electrically connected to other than the battery terminal 106, the resonance frequency of the antenna including the circuit member 108 is greatly changed, and the antenna characteristics of the device are deteriorated. Can be suitably suppressed. This will be described in detail below.
- FIG. 2 is a cross-sectional view illustrating a schematic configuration of the wireless communication device 10 in which the battery 100 is mounted.
- the wireless communication device 10 includes a main body 11 that includes an antenna (wireless communication antenna) 12, a ground portion 13 of the main body substrate, and a device terminal 14, and performs wireless communication (for example, Mobile phone).
- the device terminal 14 is connected to the battery terminal 106 of the battery 100, power is supplied from the battery 100 to the wireless communication device 10.
- the ground wire of the device terminal 14 is connected to the ground part 13.
- the antenna 12 is an antenna used for the wireless communication device 10 to perform wireless communication, and a general antenna is used.
- Examples of the antenna 12 include, but are not limited to, a linear antenna such as a dipole antenna, a monopole antenna, a loop antenna, a whip antenna, and a helical antenna, a slot antenna, a patch antenna, a pattern antenna, and a chip antenna. .
- the device terminal 14 is connected to the battery terminal 106 to constitute a battery connector.
- the device terminal 14 can be formed of a conductor.
- the circuit member 108 has the side opposite to the side connected to the battery terminal 106 facing the direction of the antenna 12.
- the circuit member 108 when the resonance frequency adjusting unit 110 is not present, the circuit member 108 operates as an antenna having directivity in the direction toward the antenna 12, and may deteriorate the antenna characteristics of the antenna 12. That is, the circuit member 108 operates as a 1 / 4 ⁇ system antenna in which only one end is grounded, and when the left ⁇ , that is, the resonance frequency is within the frequency band of the antenna 12, as shown in FIG. Degrading properties.
- the resonance frequency adjusting unit 110 is connected to the circuit member 108, other conditions are the same as those in the case where the resonance frequency adjusting unit 110 as described above does not exist. Even so, it is possible to avoid deterioration of the antenna characteristics. That is, the resonance frequency adjustment unit 110 is connected to the circuit member 108, and the resonance frequency adjustment unit 110 is connected to the ground line of the battery terminal 106, so that the antenna including the circuit member 108 and the resonance frequency adjustment unit 110 has a tip. It operates like a grounded dipole antenna and becomes a 1 / 2 ⁇ system. Further, the electrical length of the antenna is different from the electrical length of only the circuit member 108. Therefore, ⁇ shown in the left, that is, the resonance frequency changes greatly from the case where the resonance frequency adjusting unit 110 is not present, so that it can be shifted outside the frequency band of the antenna 12 and deterioration of the antenna characteristics can be avoided.
- the present invention provides the circuit member 108 with an electrical length of the circuit member 108 that is close to (1 + 2n) / 4 ⁇ of the operating frequency and antenna characteristics can be deteriorated.
- the resonance frequency adjusting unit 110 By connecting the resonance frequency adjusting unit 110, the electrical length of the antenna composed of the circuit member 108 and the resonance frequency adjusting unit 110 is shifted from (1 + 2n) / 2 ⁇ of the operating frequency to avoid deterioration of the antenna characteristics. . Since (1 + 2n) / 4 ⁇ and (1 + 2n) / 2 ⁇ are greatly different, avoidance is easy.
- the frequency band of the antenna 12 refers to a frequency range for which the antenna 12 is used, and can take various values depending on the application of the wireless communication device 10.
- the wireless communication device 10 when it is a mobile phone, it may be a frequency band assigned to each carrier.
- the battery 100 can avoid deterioration of the antenna characteristics of the antenna 12 without being electrically connected to the wireless communication device 10 other than the battery terminal 106, it is suitable as a battery mounted on the wireless communication device 10.
- the battery 100 is configured such that the resonance frequency of the antenna including the circuit member 108 and the resonance frequency adjusting unit 110 is different from the frequency band of the antenna 12, thereby reducing the antenna characteristics of the antenna 12.
- the wireless communication device 10 since it is not electrically connected to the wireless communication device 10 other than the battery terminal 106, it is only necessary to process the battery, and it is necessary to apply processing to both the battery and the substrate of the wireless communication device. Costs can be reduced compared to the described technology. In addition, a mechanism for attaching and detaching the battery can be easily configured.
- FIG. 3 is a cross-sectional view showing a schematic configuration of the wireless communication device 10 on which the battery 200 according to one embodiment (second embodiment) of the present invention is mounted.
- the wireless communication device 10 may be the same device as the wireless communication device 10 used in the first embodiment except that the battery 200 is mounted, and the description thereof is omitted.
- the battery 200 includes a battery terminal 206, a circuit member 208, and a resonance frequency adjustment unit 210. And the point in which the resonant frequency adjustment part 210 is equipped with the electronic component 212 differs from the battery 100 which concerns on 1st Embodiment.
- an electronic component that can easily change the electrical length of a path including itself can be used.
- a coil choke coil
- a capacitor or the like can be used alone or in combination.
- the resonance frequency adjusting unit 210 includes the electronic component 212 as described above, the circuit member 208 and the resonance frequency adjusting unit 210 are included by appropriately changing each constant (inductance and capacitance) of the electronic component 212.
- the electrical length of the configured antenna can be easily set.
- each constant (inductance and capacitance) of the electronic component 212 may be determined experimentally so as to minimize the gain reduction of the antenna 12 in the operating frequency band.
- FIG. 4 is a cross-sectional view showing a schematic configuration of the wireless communication device 10 on which the battery 300 according to one embodiment (third embodiment) of the present invention is mounted.
- the wireless communication device 10 may be the same device as the wireless communication device 10 used in the first embodiment except that the battery 300 is mounted, and the description thereof is omitted.
- the battery 300 includes a battery terminal 306, a circuit member 308, and a resonance frequency adjustment unit 310.
- the resonant frequency adjustment unit 310 is connected to the circuit member 308 via capacitive coupling (capacitive coupling) 314, which is different from the battery 100 according to the first embodiment.
- the capacitive coupling 314 may be any capacitor that can insulate the resonant frequency adjusting unit 310 and the circuit member 308 in a DC manner and connect them in an AC manner.
- a capacitor can be used.
- the circuit member 308 is often a DC circuit such as a charge control circuit. Therefore, since the resonance frequency adjusting unit 310 and the circuit member 308 are galvanically insulated, a direct current from the circuit member 308 does not flow in the resonance frequency adjusting unit 310 and the resonance frequency adjusting unit 310 is provided. Hardly affects the operation of the circuit member 308.
- the circuit member 308 is a DC circuit
- the resonance frequency adjusting unit 310 when the resonance frequency adjusting unit 310 is directly connected to the circuit member 308, the circuit may be short-circuited. Even in such a case, in the battery 300 according to the present embodiment, the circuit member 308 and the resonance frequency adjusting unit 310 are insulated from each other in terms of direct current, so that a short circuit can be prevented.
- the effect of the present invention can be suitably obtained by adopting a seemingly useless configuration in which another circuit is capacitively coupled to the circuit member that is a DC circuit.
- FIG. 5 is a cross-sectional view showing a schematic configuration of the wireless communication device 10 on which the battery 400 according to one embodiment (fourth embodiment) of the present invention is mounted.
- the wireless communication device 10 may be the same device as the wireless communication device 10 used in the first embodiment except that the battery 400 is mounted, and the description thereof is omitted.
- the battery 400 includes a battery terminal 406, a circuit member 408, and a resonance frequency adjustment unit 410.
- the resonance frequency adjustment unit 410 includes the electronic component 212 and is connected to the circuit member 408 via the capacitive coupling 414, which is different from the battery 100 according to the first embodiment.
- the battery 400 according to the present embodiment appropriately changes the constants (inductance and capacitance) of the electronic component 212 to appropriately change the electric length of the antenna including the circuit member 208 and the resonance frequency adjusting unit 210.
- the influence on the operation of the circuit member 308 due to the provision of the resonance frequency adjusting unit 310, particularly the occurrence of a short circuit, can be suitably prevented.
- FIG. 6 is a cross-sectional view showing a schematic configuration of the wireless communication device 10 on which the battery 500 according to one embodiment (fifth embodiment) of the present invention is mounted.
- the wireless communication device 10 may be the same device as the wireless communication device 10 used in the first embodiment except that the battery 500 is mounted, and the description thereof is omitted.
- the battery 500 includes a battery terminal 506, a circuit member 508, and a resonance frequency adjustment unit 510.
- the battery 500 is further provided with a ground portion (grounding system) 520 inside the battery coupled to the ground wire of the battery terminal 506.
- the resonance frequency adjustment unit 510 is connected to the ground unit 520 instead of the battery terminal 506 (in this embodiment, the resonance frequency adjustment unit 510 is connected to the battery terminal 506 via the ground unit 520. Electrically connected). This point is different from the battery 100 according to the first embodiment.
- the battery 500 according to the present embodiment has the resonance frequency adjustment unit 510 electrically connected to the ground line of the battery terminal 506 via the ground unit 520, so that the circuit member
- the antenna composed of 508 and the resonance frequency adjusting unit 510 operates like a tip-grounded dipole antenna, becomes a 1 / 2 ⁇ system, and the electrical length of the antenna is different from the electrical length of the circuit member 508 alone. Become. Therefore, since ⁇ shown in the left, that is, the resonance frequency changes greatly from the case where the resonance frequency adjusting unit 510 does not exist, it can be shifted outside the frequency band of the antenna 12, and deterioration of the antenna characteristics can be avoided.
- the resonance frequency adjustment unit 510 when the resonance frequency adjustment unit 510 is connected to the ground unit 520, it may include an electronic component as in the battery 200 (second embodiment), or the battery 300 (third The circuit member 508 may be connected in an alternating manner through capacitive coupling, as in the embodiment of FIG. 5, and both the former two configurations are provided as in the battery 400 (fourth embodiment). Also good.
- FIG. 7 is a cross-sectional view showing a schematic configuration of the wireless communication device 10 on which the battery 600 according to one embodiment (sixth embodiment) of the present invention is mounted.
- the wireless communication device 10 may be the same device as the wireless communication device 10 used in the first embodiment except that the battery 600 is mounted, and the description thereof is omitted.
- the battery 600 includes a battery terminal 606, a circuit member 608, and a resonance frequency adjustment unit 610.
- the resonance frequency adjustment unit 610 is different from the battery 100 according to the first embodiment in that the resonance frequency adjustment unit 610 is not electrically connected to any member other than the circuit member 608 instead of being connected to the battery terminal 606. .
- the circuit member 608 operates as an antenna having directivity in the direction toward the antenna 12 when the resonance frequency adjustment unit 610 is not present, and deteriorates the antenna characteristics of the antenna 12. There is a case to let you. That is, the circuit member 608 operates as a 1 / 4 ⁇ -type antenna in which only one end is grounded, and when the left-handed ⁇ , that is, the resonance frequency is within the frequency band of the antenna 12, as shown in FIG. Degrading properties.
- the resonance frequency adjustment unit 610 is connected to the circuit member 608. Therefore, other conditions are the same as the case where the resonance frequency adjustment unit 610 as described above does not exist. Even so, it is possible to avoid deterioration of the antenna characteristics. That is, since the resonance frequency adjustment unit 610 is connected to the circuit member 608, the electrical length of the antenna including the circuit member 608 and the resonance frequency adjustment unit 610 is different from the electrical length of the circuit member 608 alone. Therefore, the left ⁇ , that is, the resonance frequency changes from the case where the resonance frequency adjustment unit 610 does not exist, and therefore can be shifted outside the frequency band of the antenna 12, and deterioration of the antenna characteristics can be avoided.
- the present invention provides the circuit member 608 with a circuit member 608 that has an electrical length close to (1 + 2n) / 4 ⁇ of the operating frequency and can deteriorate antenna characteristics.
- the resonance frequency adjustment unit 610 By connecting the resonance frequency adjustment unit 610, the electrical length of the antenna composed of the circuit member 608 and the resonance frequency adjustment unit 610 is shifted from (1 + 2n) / 4 ⁇ of the operating frequency to avoid deterioration of the antenna characteristics. .
- the battery 600 according to the present embodiment is not electrically connected to the wireless communication device 10 other than the battery terminal. Therefore, only the battery needs to be processed. Compared with the technique described in Patent Document 1 that requires processing on both the wireless communication device and the substrate of the wireless communication device, the cost can be reduced. In addition, a mechanism for attaching and detaching the battery can be easily configured.
- FIG. 8 is a cross-sectional view showing a schematic configuration of the wireless communication device 10 in which the battery 700 according to one embodiment (seventh embodiment) of the present invention is mounted.
- the wireless communication device 10 may be the same device as the wireless communication device 10 used in the first embodiment except that the battery 700 is mounted, and the description thereof is omitted.
- the battery 700 includes a battery terminal 706, a circuit member 708, and a resonance frequency adjusting unit 710.
- the point that the resonance frequency adjusting unit 710 includes the electronic component 712 is different from the battery 600 according to the sixth embodiment.
- the electronic component 712 an electronic component similar to the electronic component 212 according to the second embodiment can be used.
- the circuit member 708 and the resonance frequency adjusting unit 710 can be changed by appropriately changing each constant (inductance and capacitance) of the electronic component 712. It is possible to easily set the electrical length of the antenna including the antenna.
- the electrical length of the antenna including the circuit member 708 and the resonance frequency adjusting unit 710 is changed from the electrical length of only the circuit member 708 as compared with the 200 according to the second embodiment. This is important for avoiding deterioration of the antenna characteristics. Therefore, the use of the electronic component 712 can favorably avoid deterioration of antenna characteristics.
- FIG. 9 is a cross-sectional view showing a schematic configuration of the wireless communication device 10 on which the battery 800 according to one embodiment (eighth embodiment) of the present invention is mounted.
- the wireless communication device 10 may be the same device as the wireless communication device 10 used in the first embodiment except that the battery 800 is mounted, and the description thereof is omitted.
- the battery 800 includes a battery terminal 806, a circuit member 808, and a resonance frequency adjustment unit 810.
- the point that the resonance frequency adjustment unit 810 is connected to the circuit member 808 via capacitive coupling (capacitive coupling) 814 is different from the battery 600 according to the sixth embodiment.
- the capacitive coupling 814 the same one as the capacitive coupling 314 according to the fourth embodiment can be used. Similarly to the battery 300 according to the third embodiment, in the battery 800 according to the present embodiment, a direct current from the circuit member 808 does not flow through the resonance frequency adjustment unit 810, and a circuit is provided by providing the resonance frequency adjustment unit 810. There is almost no influence on the operation of the member 808.
- the battery 800 according to the present embodiment may be further provided with an electronic component in the resonance frequency adjusting unit 810, similarly to the battery 500 according to the fifth embodiment. In that case, the effect which concerns on the structure of 7th Embodiment can be acquired further.
- the battery according to the present invention includes a battery terminal, a circuit member that is electrically connected to the battery terminal, and a direct connection or capacitive coupling to the circuit member, and the battery without using the circuit member. And a resonance frequency adjusting unit electrically connected to the terminal.
- the battery according to the present invention also includes a battery terminal, a circuit member electrically connected to the battery terminal, and a direct connection or capacitive coupling to the circuit member, and other than the circuit member is electrically connected. And a resonance frequency adjusting unit that is not provided.
- the resonance frequency adjusting unit may include an electronic component capable of adjusting the electrical length.
- the electronic component may include at least one of a capacitor and a coil.
- the electrical length of the antenna comprised including the said circuit member which changes when the said resonance frequency adjustment part is connected to the said circuit member is not only the length of the said resonance frequency adjustment part. Since it also changes depending on the characteristics of the electronic component (for example, the inductance of the coil and the capacitance of the capacitor), the electrical length of the antenna can be easily adjusted so that the resonance does not deteriorate the antenna characteristics. Can do.
- the resonance frequency adjusting unit is preferably capacitively coupled to the circuit member.
- the resonance frequency adjusting unit since the resonance frequency adjusting unit is capacitively coupled to the circuit member, a direct current is not passed.
- the circuit member provided in the battery is, for example, a charge control circuit, and is often a DC circuit. Therefore, according to the above configuration, since direct current from the circuit member does not flow through the resonance frequency adjusting unit, it is possible to suppress deterioration of antenna characteristics without substantially affecting the operation of the circuit member. it can. That is, in one aspect, the above-described effect can be obtained by adopting a seemingly useless configuration in which another circuit is capacitively coupled to the circuit member that is a DC circuit.
- the circuit when the resonance frequency adjusting unit is electrically connected to the battery terminal without passing through the circuit member, the circuit may be short-circuited when a direct current flows through the resonance frequency adjusting unit. Even in such a case, according to the above configuration, a short circuit can be prevented.
- the battery may further include a ground system connected to the battery terminal, and the resonance frequency adjusting unit may be electrically connected to the battery terminal via the ground system. .
- the resonance frequency adjusting unit since the resonance frequency adjusting unit is connected to the battery terminal via the ground system, the resonance frequency adjusting unit can be preferably electrically connected to the battery terminal.
- the battery according to the present invention is a wireless communication device provided with an antenna for wireless communication, and is characterized in that the battery according to the present invention is mounted.
- the battery since the battery is unlikely to deteriorate the antenna characteristics of the antenna, it can be suitably used as a battery mounted on the wireless communication device.
- the resonance frequency of the antenna including the circuit member and the resonance frequency adjusting unit is different from the frequency band of the wireless communication antenna.
- the resonant frequency of the antenna comprised including the said circuit member and the said resonant frequency adjustment part differs from the frequency band of the said antenna for wireless communication, the antenna characteristic of the said antenna for wireless communication deteriorates Therefore, it can be suitably used as a battery mounted on the wireless communication device.
- radiation from the antenna is directed in a direction toward the wireless communication antenna.
- the circuit member and the resonance frequency adjustment unit are included. Since the antenna has a resonance frequency different from the frequency band of the antenna for wireless communication, the antenna characteristics of the antenna are not deteriorated and can be suitably used as a battery mounted on the wireless communication device.
- the present invention can be used in the field of manufacturing a battery incorporating a circuit member and a wireless communication device equipped with the battery.
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Abstract
Description
図1は、本発明の一実施形態(第1の実施形態)に係る電池100の概略構成を示す斜視図である。図1に示すように、電池100は、ケース102の内部に、セル104、回路部材108および共振周波数調整部110を備えており、ケース102から露出する電池端子106を備えている。
図3は、本発明の一実施形態(第2の実施形態)に係る電池200が搭載された無線通信機器10の概略構成を示す断面図である。無線通信機器10は、電池200が搭載されていることを除けば、第1の実施形態に用いられた無線通信機器10と同様の機器を用いればよく、その説明は省略する。
図4は、本発明の一実施形態(第3の実施形態)に係る電池300が搭載された無線通信機器10の概略構成を示す断面図である。無線通信機器10は、電池300が搭載されていることを除けば、第1の実施形態に用いられた無線通信機器10と同様の機器を用いればよく、その説明は省略する。
図5は、本発明の一実施形態(第4の実施形態)に係る電池400が搭載された無線通信機器10の概略構成を示す断面図である。無線通信機器10は、電池400が搭載されていることを除けば、第1の実施形態に用いられた無線通信機器10と同様の機器を用いればよく、その説明は省略する。
図6は、本発明の一実施形態(第5の実施形態)に係る電池500が搭載された無線通信機器10の概略構成を示す断面図である。無線通信機器10は、電池500が搭載されていることを除けば、第1の実施形態に用いられた無線通信機器10と同様の機器を用いればよく、その説明は省略する。
図7は、本発明の一実施形態(第6の実施形態)に係る電池600が搭載された無線通信機器10の概略構成を示す断面図である。無線通信機器10は、電池600が搭載されていることを除けば、第1の実施形態に用いられた無線通信機器10と同様の機器を用いればよく、その説明は省略する。
図8は、本発明の一実施形態(第7の実施形態)に係る電池700が搭載された無線通信機器10の概略構成を示す断面図である。無線通信機器10は、電池700が搭載されていることを除けば、第1の実施形態に用いられた無線通信機器10と同様の機器を用いればよく、その説明は省略する。
図9は、本発明の一実施形態(第8の実施形態)に係る電池800が搭載された無線通信機器10の概略構成を示す断面図である。無線通信機器10は、電池800が搭載されていることを除けば、第1の実施形態に用いられた無線通信機器10と同様の機器を用いればよく、その説明は省略する。
11、21、31 本体
12、22、32 アンテナ
13、23、33、520 グラウンド部
14、24、34 装置端子
100、200、300、400、500、
600、700、800、900、1000 電池
102、902 ケース
104、904 セル
106、206、306、406、506、
606、706、806、906、1006 電池端子
108、208、308、408、508、
608、708、808、908、1008 回路部材
110、210、310、410、510、
610、710、810 共振周波数調整部
212、412、712 電子部品
314、414、814 容量結合部
35、1030 接続部
Claims (9)
- 電池端子と、
該電池端子に電気的に接続されている回路部材と、
該回路部材に直接接続または容量結合されるとともに、該回路部材を介さずに該電池端子に電気的に接続されている共振周波数調整部とを備えていることを特徴とする電池。 - 電池端子と、
該電池端子に電気的に接続されている回路部材と、
該回路部材に直接接続または容量結合され、該回路部材以外とは電気的に接続されていない共振周波数調整部とを備えていることを特徴とする電池。 - 上記共振周波数調整部が、電気長を調整可能な電子部品を備えていることを特徴とする請求項1または2に記載の電池。
- 上記電子部品が、コンデンサおよびコイルの少なくとも何れかを含んでいることを特徴とする請求項3に記載の電池。
- 上記共振周波数調整部が、上記回路部材に容量結合されていることを特徴とする請求項1~4の何れか一項に記載の電池。
- 上記電池端子に電気的に接続されている接地系をさらに備えており、
上記共振周波数調整部は、該接地系を介して上記電池端子と電気的に接続されていることを特徴とする請求項1~5の何れか一項に記載の電池。 - 無線通信用アンテナを備えた無線通信機器であって、
請求項1~6の何れか一項に記載の電池が搭載されていることを特徴とする無線通信機器。 - 上記回路部材および上記共振周波数調整部を含んで構成されるアンテナの共振周波数が、上記無線通信用アンテナの周波数帯域と異なることを特徴とする請求項7に記載の無線通信機器。
- 上記アンテナからの放射が、上記無線通信用アンテナへ向かう方向を指向するようになっていることを特徴とする請求項8に記載の無線通信機器。
Priority Applications (3)
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JP2011531829A JP5357970B2 (ja) | 2009-09-18 | 2010-06-16 | 電池および無線通信機器 |
CN201080041427.6A CN102598409B (zh) | 2009-09-18 | 2010-06-16 | 电池及无线通信设备 |
US13/496,424 US8761843B2 (en) | 2009-09-18 | 2010-06-16 | Battery and wireless communication apparatus |
Applications Claiming Priority (2)
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JP2009-217822 | 2009-09-18 | ||
JP2009217822 | 2009-09-18 |
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WO2011033832A1 true WO2011033832A1 (ja) | 2011-03-24 |
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PCT/JP2010/060244 WO2011033832A1 (ja) | 2009-09-18 | 2010-06-16 | 電池および無線通信機器 |
Country Status (4)
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US (1) | US8761843B2 (ja) |
JP (1) | JP5357970B2 (ja) |
CN (1) | CN102598409B (ja) |
WO (1) | WO2011033832A1 (ja) |
Cited By (1)
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US11462822B2 (en) | 2017-12-20 | 2022-10-04 | Yokowo Co., Ltd. | Antenna device for vehicle |
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EP3024091A4 (en) * | 2013-07-17 | 2016-07-13 | Panasonic Ip Man Co Ltd | WIRELESS DEVICE |
US9634709B2 (en) | 2014-09-04 | 2017-04-25 | Apple Inc. | Removable electronic device case with supplemental antenna element |
US9819069B2 (en) | 2015-02-11 | 2017-11-14 | Google Inc. | Multi-band antenna with a battery resonator |
US9654164B2 (en) * | 2015-04-14 | 2017-05-16 | Apple Inc. | Removable electronic device case with supplemental wireless circuitry |
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2010
- 2010-06-16 WO PCT/JP2010/060244 patent/WO2011033832A1/ja active Application Filing
- 2010-06-16 US US13/496,424 patent/US8761843B2/en not_active Expired - Fee Related
- 2010-06-16 CN CN201080041427.6A patent/CN102598409B/zh not_active Expired - Fee Related
- 2010-06-16 JP JP2011531829A patent/JP5357970B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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CN102598409A (zh) | 2012-07-18 |
US8761843B2 (en) | 2014-06-24 |
JP5357970B2 (ja) | 2013-12-04 |
CN102598409B (zh) | 2016-01-13 |
JPWO2011033832A1 (ja) | 2013-02-07 |
US20120169439A1 (en) | 2012-07-05 |
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