JP5330701B2 - Battery pack and portable electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery pack capable of inexpensively determining whether it is regular or not in simple structure without characterizing the shape of the battery pack; and to provide a portable electronic apparatus equipped with the same. <P>SOLUTION: The battery pack 90 mounted on the portable electronic apparatus and supplying power thereto includes: a battery cell 91; a pack positive electrode terminal 90a and a pack negative electrode terminal 90b each exposed to the surface of the battery pack 90 and electrically connected to a positive electrode 91a and a negative electrode 91b of the battery cell 91; a determination electrode terminal 90c exposed to the surface of the battery pack 90 together with the pack positive electrode terminal 90a and the pack negative electrode terminal 90b; a stripline 92 whose one end is connected to the determination electrode terminal 90c; and a magnetic sheet 93 stuck so as to cover the battery cell 91 and the stripline 92. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a battery pack attached to a portable electronic device such as a mobile phone and a portable electronic device attached with the battery pack.

  In portable electronic devices such as mobile phones, secondary batteries (batteries) are becoming poorer as their functions become more sophisticated. Therefore, an increasing number of users are purchasing additional secondary battery packs. A user who does not have detailed knowledge may attach the battery pack to the portable electronic device without confirming whether the battery pack is a genuine product (regular product). If a non-genuine secondary battery (a non-genuine product is also referred to as “illegal product” below) is attached to a portable electronic device, it may cause problems such as malfunction or malfunction. .

  Therefore, in the first place, a discrimination resistor connected to the discrimination electrode terminal is built in the secondary battery, and if the correct voltage is not obtained, the protection circuit is activated to stop energizing the portable electronic device. At present, a device has been devised to give a characteristic to the shape of the battery pack so that a battery pack having an incorrect shape cannot be mounted on the mounting portion of the battery pack in the portable electronic device.

  Patent Documents 1 and 2 below disclose techniques for determining whether or not a battery pack is a genuine product by embedding an RFID (Radio Frequency Identification) chip in the battery pack.

JP 2003-168406 A JP 2005-341775 A

  However, even if the shape of the battery pack is characterized, if the number of portable electronic devices becomes enormous, differentiation will be limited by the shape of the battery pack alone. May accidentally be attached to a portable electronic device. Therefore, it is not perfect only to devise a feature in the shape of the battery pack. Also, in the method of determining a battery pack by incorporating a discrimination resistor or RFID chip in the battery pack, the battery pack is provided with parts that are not directly related to the function of the secondary battery, such as the discrimination resistor or RFID chip. This complicates the structure of the battery pack and increases the cost of the battery pack.

  Accordingly, an object of the present invention is to provide a battery pack having a simple structure and capable of determining whether it is a genuine product at a low cost, and a portable electronic device to which the battery pack is attached.

  The battery pack of the present invention is a battery pack that is attached to a portable electronic device and supplies power to the portable electronic device, and is electrically connected to a battery cell and a positive electrode and a negative electrode of the battery cell. A pack positive electrode terminal and a pack negative electrode terminal exposed on the surface, a discrimination electrode terminal exposed on the surface of the battery pack together with the pack positive electrode terminal and the pack negative electrode terminal, and a strip line with one end connected to the discrimination electrode terminal And a magnetic sheet attached so as to cover the battery cell and the strip line.

The portable electronic device of the present invention, and the battery cell, wherein each electrically connected to the positive electrode and the negative electrode of the battery cell, and the pack positive electrode terminal and the pack negative electrode terminal being exposed on the front surface, the pack positive electrode terminal and the pack negative terminal with the determination electrode terminals are exposed on the surface, a first strip line having one end connected to the determination electrode terminal, when the battery pack is attached to Ru with a being the power supply by the battery pack A portable electronic device to be driven, wherein when the battery pack is mounted, a power supply terminal that contacts and conducts with the pack positive terminal and the pack negative terminal, and when the battery pack is mounted, the discrimination electrode A discriminating terminal that contacts and conducts with the terminal; and a second strip that couples with the first strip line at a high frequency when the battery pack is mounted And in a detection unit which is connected to the second strip line, a transmission section for transmitting a predetermined transmission wave, and a control unit, wherein the control unit, when the battery pack is mounted, said transmission And transmitting the predetermined transmission wave to the first strip line via the determination terminal and the determination electrode terminal, and detecting the reception wave received by the transmission wave on the second strip line. The extracted received wave is compared with the transmitted wave, and the attached battery pack covers the battery cell and the first strip line based on the deterioration state of the received wave with respect to the transmitted wave. It is related with the portable electronic device characterized by determining whether it has a magnetic sheet .

  In the portable electronic device of the present invention, the control unit, when the measured deterioration rate calculated from the result of the comparison between the transmission wave and the reception wave is different from the assumed deterioration rate assumed in advance, It is preferable to determine that the battery pack that does not have is installed.

  The portable electronic device of the present invention further includes a magnetic field communication unit that performs magnetic field communication, and a display unit. When the control unit determines that the battery pack that does not have the magnetic sheet is mounted, the display It is preferable to display that the magnetic field communication unit is unusable.

  According to the present invention, it is possible to provide a battery pack with a simple structure and capable of determining whether it is a genuine product at low cost, and a portable electronic device to which the battery pack is attached.

  Hereinafter, a preferred embodiment for carrying out the present invention will be described with reference to the drawings. First, the basic structure of a mobile phone 1 that is an embodiment of the mobile electronic device of the present invention will be described with reference to FIGS. One embodiment (battery pack 90) of the battery pack of the present invention is attached to the mobile phone 1 of the present embodiment.

  FIG. 1 is a perspective view showing a cellular phone 1 according to an embodiment of the present invention in a state where an operation unit side body 2 and a display unit side body 3 are opened. 2 is a perspective view seen from the rear case 30b side of the display unit side body 3 in a state in which the cellular phone 1 shown in FIG. 1 is folded. FIG. 3 is an exploded perspective view of the operation unit side body 2 shown in FIG.

  As shown in FIGS. 1 and 2, the mobile phone 1 according to the present embodiment is a foldable mobile phone 1, and includes an operation unit side body 2 having a substantially rectangular parallelepiped shape and a display unit side body having a substantially rectangular parallelepiped shape. 3 and a connecting portion 4 that connects the operation unit side body 2 and the display unit side body 3 to each other.

An upper end portion of the operation unit side body 2 and a lower end portion of the display unit side body 3 are connected to each other via a connection unit 4 so as to be opened and closed. That is, the connecting portion 4 connects the display unit side body 3 and the operation unit side body 2 so as to be openable and closable around the opening / closing axis X.
The cellular phone 1 relatively rotates (rotates) the operation unit side body 2 and the display unit side body 3 connected via the connection unit 4, thereby causing the operation unit side body 2 and the display unit to be rotated. The side housing 3 can be in an open state (open state), or the operation unit side housing 2 and the display unit side housing 3 can be folded (folded state).

  Next, details of the display unit side body 3 will be described. As shown in FIGS. 1 and 2, the display unit side body 3 has an outer surface mainly composed of a front case 30 a and a rear case 30 b.

  The front surface 3a of the display unit side body 3 is mainly composed of a front case 30a and a cover member 33. The front surface 3a is a surface facing the operation unit side body 2 in a state where the mobile phone 1 is folded. The back surface 3b of the display unit side body 3 is mainly composed of a rear case 30b. The back surface 3b is a surface opposite to the front surface 3a.

  A main liquid crystal module 34 for displaying various types of information is disposed in the display unit side body 3. The main liquid crystal module 34 has a main display unit 34 a provided on one surface thereof mainly having a transparent portion. It arrange | positions so that it may expose to the front surface 3a of the display part side housing | casing 3 from the opening part formed in the front case 30a through the cover member 33 to perform.

  Further, the front case 30a is formed with an audio output unit 31 for outputting audio on the other party of the call. The audio output unit 31 is disposed on the end side opposite to the connection unit 4 in the longitudinal direction of the display unit side body 3. That is, the audio output unit 31 is disposed in the vicinity of the end on the display unit side body 3 side in the open state of the mobile phone 1.

  As shown in FIG. 2, a sub liquid crystal module 36 for displaying various information is arranged on the rear case 30b side of the display unit side body 3, and the sub liquid crystal module 36 is provided on one surface thereof. The sub display unit 36a is disposed so as to be exposed on the back surface 3b of the display unit side body 3 through the transparent portion of the rear case 30b.

  The main liquid crystal module 34 and the sub liquid crystal module 36 are respectively a liquid crystal panel constituting the main display section 34a and the sub display section 36a, a driving circuit for driving the liquid crystal panel, and a backlight for irradiating light from the back side of the liquid crystal panel. And the like.

  Next, details of the operation unit side body 2 will be described. As shown in FIGS. 1 to 3, the outer surface of the operation unit side body 2 is mainly composed of a front case 21 and a rear case 22. The front case 21 constitutes the front surface 2 a side of the operation unit side body 2. The front surface 2 a of the operation unit side body 2 is a surface facing the display unit side body 3 in a state in which the mobile phone 1 is folded. The rear case 22 constitutes a back surface 2b side that is a surface opposite to the front surface 2a.

  The front case 21 is configured such that the operation key group 11 is exposed to the front surface 2a. The operation key group 11 includes input of a function setting operation key 13 for operating various settings, various functions such as a telephone book function and a mail function, and a numeric keypad for inputting a telephone number and characters such as mail. An operation key 14 and a determination operation key 15 for performing determination in various operations, scrolling in the up / down / left / right directions, and the like are configured.

  A predetermined function is assigned to each key constituting the operation key group 11 according to the open / closed state of the operation unit side body 2 and the display unit side body 3 and the type of application being activated (key).・ Assign). In the mobile phone 1, when each key constituting the operation key group 11 is pressed by the user, an operation corresponding to the function assigned to each key is executed.

  The front surface 2a is formed with a voice input unit 12 for inputting a voice uttered by a user of the mobile phone 1 during a call. The voice input unit 12 is disposed in the vicinity of the end on the opposite side of the connecting unit 4 in the longitudinal direction of the operation unit side body 2. That is, the voice input unit 12 is arranged on one end side in the longitudinal direction in the opened state of the mobile phone 1.

  On the side surface 2c of the operation unit side body 2, for example, an interface for transmitting / receiving data to / from an external device (for example, a host device), a headphone / microphone terminal, an interface of a removable external memory, a battery pack 90 (battery ) Is provided for charging.

  As shown in FIG. 3, the operation unit side body 2 includes a main circuit board 80, a shield case 70, a key board 60, a key structure part 50, a front case 21, and a rear case 22. .

The shield case 70 covers electronic components (not shown) disposed on the main circuit board 80.
The key board 60 is arranged on the shield case 70 and includes a plurality of key switches 61, 62, 63.
The key structure unit 50 is disposed on the key substrate 60, and a base body in which a pusher capable of pressing a plurality of key switches 61, 62, and 63 and a key top having an operation surface are made of elastic silicon or the like. The sheet 51 is provided on the surface.

The front case 21 includes key holes 13a, 14a, and 15a that are openings through which the operation surface of the key structure 50 is exposed.
The front case 21 and the rear case 22 contain the main circuit board 80, the shield case 70, the key board 60, and the key structure 50.

  The front case 21 and the rear case 22 form the outer surface of the operation unit side body 2. The front case 21 and the rear case 22 are arranged so that the inner surfaces of the concave shapes face each other, and are joined so that the outer peripheral edges thereof overlap each other. The key structure 50, the key board 60, the shield case 70, and the main circuit board 80 are sandwiched between the front case 21 and the rear case 22 so as to be built therein. That is, the shield case 70 is laminated so as to cover the main circuit board 80, the key board 60 is laminated on the shield case 70, and the key structure 50 is laminated on the key board 60.

  On the surface of the main circuit board 80 on the shield case 70 side, various electronic components (not shown) constituting a control unit 86c, a storage unit 86a, a power supply circuit 86b and the like, which will be described later, are mounted. Various electronic components form a circuit block (not shown) or the like by a predetermined combination. The main circuit board 80 includes a magnetic field communication unit 86f that performs magnetic field communication with an external device in a first use frequency band (for example, 13.56 MHz) by a magnetic field antenna 86g described later.

  On one end side of the rear case 22, a battery mounting portion 23 that is open on the back surface side and recessed on the front surface 2 a side of the operation unit side body 2 is formed. The battery mounting part 23 can be opened or closed by a rear case 22 and a removable cover part 24. The battery pack 90 is housed from the outside in the battery mounting portion 23 of the rear case 22, and the battery mounting portion 23 is sealed by the lid portion 24, so that the battery pack 90 is mounted on the operation unit side body 2 of the mobile phone 1.

  The rear case 22 is attached to the outer periphery of the battery mounting unit 23 and a main antenna 86e for performing communication by a CDMA method or the like at a frequency higher than the first communication frequency band with the public communication network, and RFID communication ( A magnetic field antenna (RFID antenna) 86g for performing magnetic field communication).

The magnetic field antenna 86g is, for example, a magnetic field antenna formed of a coil wound in a spiral shape on a sheet made of PET (polyethylene terephthalate) material, and has a first use frequency band with an external device. Send and receive signals.
The magnetic field communication unit 86f generates a predetermined voltage based on the power induced by the signal received by the magnetic field antenna 86g, and performs modulation processing or demodulation processing on the signal communicated by the magnetic field antenna 86g. An RF circuit that performs signal processing and a memory that stores predetermined data are provided.

Here, the operation of the magnetic field communication unit 86f will be described.
When the magnetic field antenna 86g approaches the reader / writer device installed outside to a predetermined distance, the magnetic field antenna 86g transmits an electromagnetic wave (a carrier frequency (for example, a first use frequency band) Is modulated by 13.56 MHz).
Further, when the electromagnetic wave is received by the magnetic field antenna 86g, an electromotive force is generated by the electromagnetic induction action.

  The magnetic field communication unit 86f generates an activation signal for the control unit 86c described later based on the electromotive force generated by the electromagnetic induction action. After the activation is permitted from the control unit 86c, the operation is performed by supplying power from the battery pack 90.

Then, the magnetic field communication unit 86f writes data to a memory included therein based on the signal demodulated from the RF circuit. Alternatively, data is read from the memory. When the data is read from the memory, the magnetic field communication unit 86f performs signal processing such as modulation on the data using an RF circuit, and transmits the data to an external reader / writer device via the magnetic field antenna 86g.
In this way, magnetic field communication is performed with an external reader / writer device.

  Next, the battery pack 90 of one embodiment of the present invention will be described. FIG. 4 is a perspective view showing a part of the battery pack 90 of the present embodiment, with a part thereof broken. FIG. 5 is a schematic front view showing a part of the battery pack 90 shown in FIG. FIG. 6 is a schematic exploded view of the battery pack 90 shown in FIG. FIG. 7 is a circuit block diagram of battery pack 90 shown in FIG.

  The battery pack 90 of the present embodiment is a secondary battery that is attached to the mobile phone 1 and supplies power to the mobile phone 1 and functions as a power supply source for the electrical elements provided in the mobile phone 1. . As shown in FIGS. 4 to 7, the battery pack 90 of this embodiment is electrically connected to the battery cell 91 and the positive electrode 91 a and the negative electrode 91 b of the battery cell 91, and is exposed to the surface of the battery pack 90. 90a and a pack negative electrode terminal 90b; a discrimination electrode terminal 90c exposed on the surface of the battery pack 90 together with the pack positive electrode terminal 90a and the pack negative electrode terminal 90b; a strip line 92 having one end 92a connected to the discrimination electrode terminal 90c; And a magnetic sheet 93 attached to cover the cells 91 and the strip lines 92.

  The battery pack 90 includes a battery cell 91 having a positive electrode 91a and a negative electrode 91b on an upper side 91S, a pack circuit board 94 disposed to face the upper side 91S of the battery cell 91, and a cover member that covers the pack circuit board 94. 95. In the present specification, the longitudinal direction of the battery pack 90 is referred to as the vertical direction. The battery cell 91 is provided with a (first) strip line 92, a magnetic sheet 93, and a label sheet 96.

  The battery pack 90 is formed in a rectangular plate shape as a whole. The battery cell 91 includes a positive electrode 91a and a negative electrode 91b on the upper side surface 91S. The upper side surface 91S of the battery cell 91 has an elongated rectangular shape. The negative electrode 91b protrudes from one side in the longitudinal direction of the upper side surface 91S of the battery cell 91.

  The outer surface of the battery cell 91 is formed of a metal material such as aluminum, for example. The battery cell 91 has a positive electrode function on the outer surface of the battery cell 91 except for the negative electrode 91b. In this embodiment, the battery cell 91 has a predetermined distance from the negative electrode 91b on the upper side surface 91S of the battery cell 91 separately from the negative electrode 91b. A convex region formed on the upper side surface 91S with a gap will be referred to as a positive electrode 91a.

  The pack circuit board 94 includes a pack positive terminal 90a, a pack negative terminal 90b, a discrimination electrode terminal 90c, and a protection circuit 94a. The pack positive electrode terminal 90a is electrically connected to the positive electrode 91a of the battery cell 91 via the protection circuit 94a and the first conductive member 97a. The pack negative electrode terminal 90b is electrically connected to the negative electrode 91b of the battery cell 91 through the protection circuit 94a and the second conductive member 97b. The discrimination electrode terminal 90c is electrically connected to one end 92a of the strip line 92 via the third conductive member 97c.

  That is, one end of the first conductive member 97 a is electrically connected to the pack positive terminal 90 a and the other end contacts the positive electrode 91 a of the battery cell 91. The second conducting member 97 b has one end electrically connected to the pack negative electrode terminal 90 b and the other end in contact with the negative electrode 91 b of the battery cell 91. One end of the third conducting member 97 c is electrically connected to the discrimination electrode terminal 90 c, and the other end abuts on one end 92 a of the strip line 92.

  The cover member 95 is a block-shaped member whose upper surface 95S has substantially the same shape as the upper side surface 91S of the battery cell 91, covers most of the pack circuit board 94, and attaches the pack circuit board 94 to the battery cell 91. Fix it. On the upper surface 95S of the cover member 95, when the cover member 95 is attached to the upper side surface 91S of the battery cell 91, the positions corresponding to the pack positive terminal 90a, the pack negative terminal 90b, and the discrimination electrode terminal 90c of the pack circuit board 94. Are provided with a first hole 95a, a second hole 95b, and a third hole 95c. Examples of the material for forming the cover member 95 include synthetic resin materials. The cover member 95 may be configured by low-temperature and low-pressure molding using a polyamide resin or the like.

  Therefore, in a state where the battery pack 90 is mounted on the operation unit side body 2, the pack positive terminal 90 a, the pack negative terminal 90 b, and the determination electrode terminal 90 c are the terminals of the connection connector provided on the operation unit side body 2. The battery pack 90 and electrical elements in the operation unit side body 2 are electrically connected to each other by abutting (a power supply terminal 82 and a discrimination terminal 83 described later).

  An insulating sheet 98 is attached to the front surface 91 </ b> U of the battery cell 91. The insulating sheet 98 starts from the upper side surface 91S of the battery cell 91, bends at the upper end of the front surface 91U, and extends toward the lower side surface 91T, but does not reach the lower side surface 91T. The width of the insulating sheet 98 is narrower than the width of the battery cell 91. The insulating sheet 98 is formed from a thin resin film or the like.

  A (first) strip line 92 is attached to the surface of the insulating sheet 98. The first strip line 92 is formed from a metal film, a metal foil, a sheet metal, or the like. The length and width of the first strip line 92 are smaller than the length and width of the insulating sheet 98, respectively. Therefore, the first strip line 92 is electrically insulated from the battery cell 91 by the insulating sheet 98. One end 92a of the first strip line 92 is located on a portion of the insulating sheet 98 positioned on the upper side surface 91S of the battery cell 91, and is electrically insulated from the battery cell 91 via the third conductive member 97c. It is electrically connected to the discrimination electrode terminal 90c. The other end 92b of the first strip line 92 is located on the portion of the insulating sheet 98 located on the front surface 91U of the battery cell 91 and is open.

  The length of the strip line 92 is optimally ¼ length (λ / 4) with respect to the wavelength λ of the transmission wave transmitted from the transmission unit 84a (details will be described later) of the battery discrimination circuit unit 84. However, as long as high-frequency coupling (high-frequency coupling) can be obtained with the second strip line 85 (details will be described later) provided in the operation unit side body 2, it may be shorter than this.

  The battery cell 91 to which the insulating sheet 98 and the first strip line 92 are affixed is covered with a magnetic sheet 93 at most of the battery cell 91 (excluding the upper side surface 91S of the battery cell 91). The magnetic sheet 93 is formed of a magnetic material such as ferrite and a synthetic resin material, for example. The first strip line 92 is entirely or mostly covered with the magnetic sheet 93.

  The magnetic sheet 93 is entirely or mostly covered with a label sheet 96. The label sheet 96 constitutes most of the external surface of the battery pack 90 (a portion excluding the cover member 95 and the like). On the surface of the label sheet 96 (the surface opposite to the surface facing the magnetic sheet 93), for example, the model number and standard of the battery pack 90, the name of the manufacturer of the mobile phone to which the battery pack 90 is attached (not shown), etc. Is displayed.

  The material for forming the label sheet 96 is not particularly limited, and for example, a synthetic resin material such as PET (polyethylene terephthalate) is used. In particular, a material having a lower thermal conductivity than the material forming the outer surface of the battery cell 91 (in this embodiment, for example, aluminum) is preferably used.

  The label sheet 96 may cover, for example, the surface of the battery cell 91 that is not covered with the magnetic sheet 93, the surface of the cover member 95, or the like.

The positional relationship and molding of each configuration of the battery pack 90 will be summarized again.
The battery cell 91 is formed in a substantially rectangular shape as described above. When the battery pack 90 is attached to the battery attachment portion 23, the direction corresponding to the overlapping direction of the rear case 22 and the front case 21 (the depth direction of the battery attachment portion 23) is set to the battery cell 91 or the battery. It is defined as the thickness direction of the pack 90. An insulating sheet 98 is attached to the surface of the battery cell 91 facing the rear case 22 in the thickness direction, and the first strip described above is further attached to the surface of the insulating sheet 98 on the rear case 22 side. Line 92 is affixed.

  On the other hand, as shown in FIG. 3, the battery mounting portion 23 has a concave shape constituted by a bottom surface portion 23a and a peripheral wall portion 23b surrounding the bottom surface portion 23a. The power supply terminal 82 and the determination terminal 83 are provided so as to protrude inward of the battery mounting portion 23 from a cutout portion formed by cutting out a part of the peripheral wall portion 23b.

  The battery pack 90 has a longitudinal direction in a direction orthogonal to the thickness direction of the battery pack 90 described above. A pack positive electrode terminal 90a, a pack negative electrode terminal 90b, and a pack positive electrode terminal 90b are provided on one end surface (upper side surface 91S) in the longitudinal direction. A packed circuit board 94 provided with a discrimination electrode terminal 90c is attached. When the battery pack 90 is mounted on the battery mounting portion 23, the power supply terminal 82 can be brought into contact with the pack positive terminal 90a and the pack negative terminal 90b, and the determination terminal 83 can be brought into contact with the determination electrode terminal 90c. It becomes a state.

The pack circuit board 94 is temporarily fixed with a double-sided tape or the like after the insulating sheet 98 and the first strip line 92 are attached to the battery cell 91 and attached to the mold. It is fixed by being molded and filled with polyamide resin that can be molded at low pressure. The cover member 95 is a molded part formed by such a process.
After the molding is completed in this way, the surface on the side facing the rear case 22 in the thickness direction of the battery cell 91 and the surface adjacent to the battery cell 91 in a state where at least the terminals 90a, 90b, and 90c are exposed. A magnetic sheet 93 is attached to the battery sheet 90, and a label sheet 96 is attached so as to further cover the magnetic sheet 93, whereby the battery pack 90 is completed.

Here, the role of the magnetic sheet 93 will be described.
As already described, the mobile phone 1 according to the present invention has a function of performing magnetic field communication using the magnetic field communication unit 86f and the magnetic field antenna 86g. Here, the magnetic field antenna 86g needs to form a loop antenna, and the battery mounting portion 23 is often formed in the loop in order to improve space efficiency. In this positional relationship, when the battery pack 90 is attached to the battery attachment portion 23, the battery cell 91 or the like, which is a metal object, exists in the loop of the magnetic field antenna 86g. In this case, the electromagnetic wave generated by the magnetic field antenna 86g reaches the battery cell 91, an eddy current is generated in the battery cell 91, and a magnetic field having a phase opposite to that of the electromagnetic wave generated by the magnetic field antenna 86g is generated. The antenna characteristics of the magnetic field antenna 86g may be deteriorated. This influence can be avoided by interposing a magnetic sheet 93 that shields magnetism so that electromagnetic waves do not reach the battery cell 91.

  Next, the 2nd stripline 85 located in the battery mounting part 23 of the operation part side housing | casing 2 is demonstrated. FIG. 8A is a rear view showing the operation unit side body 2 with the lid 24 removed from the rear case 22 side, and FIG. 8B shows the battery pack 90 with the first stripline 92. It is the front view seen from the side. FIG. 9 is a cross-sectional view of the A-A ′ portion (see FIG. 8) schematically showing a state where the battery pack 90 is removed from the operation unit side body 2. FIG. 10 is a cross-sectional view schematically showing a state where the battery pack 90 is mounted on the operation unit side body 2. Hereinafter, the positional relationship between the components will be described with reference to FIGS.

  As shown in FIG. 10, when the battery pack 90 is housed in the battery mounting portion 23 of the operation unit side body 2 and the battery pack 90 is mounted on the operation unit side body 2, The strip line 92 is located on the operation unit side body 2 side (main circuit board 80 side).

A terminal block 81 made of an insulator is disposed on the lower surface of the main circuit board 80 (the surface on the rear case 22 side). Two power supply terminals 82 and one discrimination terminal 83 are provided on the surface of the terminal block 81 on the battery mounting portion 23 side. The two power supply terminals 82 are a first power supply terminal 82a that contacts the pack positive terminal 90a and a second power supply terminal that contacts the pack negative terminal 90b when the battery pack 90 is attached to the operation unit side body 2. 82b. The determination terminal 83 abuts on the determination electrode terminal 90 c in a state where the battery pack 90 is mounted on the operation unit side body 2.
The power supply terminal 82 and the determination terminal 83 are provided so as to protrude from the terminal block 81, and are configured from a metal piece having an elastic body.

  A second strip line 85 is disposed on the bottom surface portion (surface facing the back surface 2b of the operation unit side body 2) 23a of the battery mounting portion 23. The second strip line 85 is formed of a strip-shaped sheet metal member or the like, and one end 85a thereof is electrically connected to a battery discrimination circuit portion 84 (details will be described later). The other end 85 b of the second strip line 85 is opened on the bottom surface portion 23 a of the battery mounting portion 23.

  In a state where the battery pack 90 is stored in the battery mounting portion 23, the second strip line 85 is disposed at a position overlapping the first strip line 92 in the battery pack 90. Therefore, in a state where the battery pack 90 is mounted on the operation unit side body 2, the first strip line 92 and the second strip line 85 are easily coupled in high frequency. Here, “overlap” means that the operation unit side housing 2 with the battery pack 90 attached is overlapped when viewed from the back surface 2b toward the front surface 2a (the overlapping direction of the rear case 22 and the front case 21). Or it overlaps in the depth direction of the battery mounting part 23). The degree of overlap between the first strip line 92 and the second strip line 85 is preferably large.

Next, functions of the mobile phone 1 according to the present embodiment will be described with reference to a functional block diagram. FIG. 11 is a functional block diagram showing functions of the mobile phone 1 of the present embodiment. FIG. 12 is a circuit block diagram showing the battery discrimination circuit unit 84.
As shown in FIG. 11, the operation unit side body 2 in the mobile phone 1 of the present embodiment includes a storage unit 86a, a power supply circuit 86b, a transmission unit 84a, a detection unit 84b, and a control unit 86c that controls each unit. (Including the comparison unit 84c) and a second strip line 85. The operation unit side body 2 includes power supply terminals 82 (82a and 82b) and a discrimination terminal 83. The controller 86c also functions as a comparator 84c as will be described later. A battery discrimination circuit unit 84 is formed by the transmission unit 84a, the detection unit 84b, and the comparison unit 84c.

  The operation unit side body 2 includes a main communication unit 86d and a main antenna 86e that perform CDMA communication, a magnetic field communication unit 86f, and a magnetic field antenna 86g. Further, the operation unit side body 2 or the display unit side body 3 includes an operation key group 11, a main display unit 34a, a sub display unit 36a, a sound processing unit 86h, a sound input unit 12, and a sound output unit. 31.

  The battery pack 90 includes a battery cell 91 and a first strip line 92. The battery pack 90 includes a pack positive electrode terminal 90a, a pack negative electrode terminal 90b, and a discrimination electrode terminal 90c.

  The storage unit 86a is composed of a volatile or non-volatile semiconductor storage element, and is used as a work area of the control unit 86c.

  The power supply circuit 86 b converts the power supply voltage supplied from the battery pack 90 via the power supply terminal 82 into a predetermined voltage, and supplies the converted voltage to each part of the mobile phone 1.

  The voice processing unit 86h outputs the other party's voice during a call from the voice output unit 31 and performs signal processing on the user's voice input from the voice input unit 12 according to the control of the control unit 86c.

  The transmission unit 84a transmits a predetermined transmission wave (carrier) under the control of the control unit 86c.

  The detector 84b rectifies and extracts the received wave (high frequency) received by the first strip line 92 and further conveyed to the second strip line 85.

  Next, the configuration of the control unit 86c will be described. The control unit 86c functions as a power supply circuit control unit that controls ON / OFF of the power supply circuit 86b. The control unit 86c functions as a communication control unit that controls the main communication unit 86d and the magnetic field communication unit 86f. The control unit 86c functions as a display control unit that controls the main display unit 34a and the sub display unit 36a. The control unit 86c functions as a sound control unit that controls the sound processing unit 86h.

The control unit 86c functions as a transmission wave control unit that controls the transmission unit 84a to transmit a predetermined transmission wave.
The control unit 86c compares the received wave received at the first stripline 92 with the transmitted wave, and the battery pack 90 attached has the magnetic sheet 93 based on the deterioration state of the received wave with respect to the transmitted wave. It functions as a comparison unit 84c for determining whether or not. That is, if there is almost no deterioration of the reception wave with respect to the transmission wave, it can be determined that the battery pack does not have a magnetic sheet. .

  Next, the battery discrimination circuit unit 84 will be described. As shown in FIG. 12, the battery discriminating circuit unit 84 is mainly composed of a transmission unit 84a, a detection unit 84b, and a comparison unit 84c.

The transmitter 84a is electrically connected to one end 92a of the first strip line 92 via the determination terminal 83 and the determination electrode terminal 90c. The detection unit 84 b is electrically connected to one end 85 a of the second strip line 85 provided in the operation unit side body 2.
In the above description, the transmission unit 84a is connected to the first strip line 92 and the detection unit 84b is connected to the second strip line 85. However, this relationship may be reversed.

  The amount of electromagnetic waves absorbed by the magnetic sheet 93 attached to the battery pack 90 has frequency characteristics. The amount of high frequency coupling in the two strip lines 92 and 85 also has frequency characteristics. Therefore, the frequency of the transmission wave is set in consideration of these two frequency characteristics. For example, by using a frequency close to the frequency handled by the magnetic field antenna 86g as the frequency of the transmission wave, the deterioration rate at the time of detection can be clearly shown depending on the presence or absence of the magnetic sheet 93. On the contrary, the frequency of the transmission wave is set in advance, and the characteristics of the magnetic sheet 93 and the dimensions of the strip lines 92 and 85 are set so that the optimum amount of absorption and coupling can be obtained at that frequency. Also good.

  The length of the second strip line 85 is optimally ¼ (λ / 4) of the wavelength λ of the transmission wave, but when the amount of coupling in the high frequency coupling with the first strip line 92 is sufficiently obtained. , Λ / 4, and may not be the same as the length of the first strip line 92 of the battery pack 90.

  For example, the comparison unit 84c compares whether the ON section of the signal pattern of the transmission wave matches the ON section of the signal pattern of the reception wave. Alternatively, the comparison unit 84c compares whether the wave height of the signal pattern of the transmission wave matches the wave height of the signal pattern of the reception wave. And the comparison part 84c is equipped with the battery pack which does not have a magnetic sheet, when the measured deterioration rate computed from the result of the comparison with a transmission wave and a received wave differs from the assumed deterioration rate assumed beforehand. Is determined. The assumed deterioration rate is set as appropriate. When the assumed deterioration rate is set, the presence or absence of the magnetic sheet in the battery pack can be easily determined based on the assumed deterioration rate.

  If the control unit 86c determines that a battery pack that does not have a magnetic sheet is attached to the operation unit side body 2, the magnetic field antenna 86g may not exhibit its original performance. It functions as a display control unit that displays on the sub display unit 36a that the magnetic field communication unit 86f is not usable.

  Or if the control part 86c determines with the battery pack which does not have a magnetic sheet being mounted | worn, it will adjust the antenna matching circuit which the magnetic field communication part 86f has so that it may match the state when not having a magnetic sheet It may function as an antenna matching control unit.

  The main communication unit 86d communicates with an external device using a predetermined use frequency band via the main antenna 86e. According to the main communication unit 86d, it is possible to connect to the public communication network via the nearest base station by wireless communication, like a general mobile phone.

  The magnetic field communication unit 86f performs non-contact (wireless) communication by a radio frequency identification (RFID) technique via the magnetic field antenna 86g.

  The discrimination electrode terminal 90 c of the battery pack 90 is connected to the battery discrimination circuit unit 84 provided on the main circuit board 80 via the discrimination terminal 83.

Next, the operation of the mobile phone 1 in each case where the following three types of battery packs are attached to the operation unit side body 2 will be described.
<1> First illegal battery pack: No strip line.
<2> Second illegal battery pack: has a strip line but does not have a magnetic sheet.
<3> Regular battery pack 90 having magnetic sheet 93 (battery pack corresponding to mobile phone 1 of the present embodiment)

<1> Case of First Unauthorized Battery Pack First, the operation of the mobile phone 1 when the first unauthorized battery pack is attached to the operation unit side body 2 will be described. Since the first strip line 92 of the present embodiment is not provided in the first unauthorized battery pack (for convenience, the reference numeral “90” is attached), high frequency coupling to the second strip line 85 itself does not occur. . Therefore, there is no attempt to output a transmission wave from the transmission unit 84a to the first strip line 92. Alternatively, even if some high frequency coupling occurs, the resistance value is large at the coupling portion, or other noise components are greatly included. Therefore, even if the carrier wave is not received or is received in the second stripline 85, it is greatly attenuated. The original signal pattern may not be reproduced due to the influence of other noise.

  That is, for example, the ON section of the signal pattern of the transmission wave transmitted from the transmitter 84a is compared with the ON section of the carrier signal pattern rectified through the detector 84b, and it is determined that the two substantially match. Therefore, the comparison unit 84c can determine that the battery pack 90 ″ being mounted is an unauthorized product.

<2> Case of Second Unauthorized Battery Pack Next, a case where a second unauthorized battery pack that does not have a magnetic sheet (for convenience, the reference numeral “90 ′” is attached) is attached to the operation unit side body 2. The operation of the mobile phone 1 will be described. The second unauthorized battery pack 90 ′ is a battery pack having the same configuration as the battery pack 90 of the present embodiment except that the second unauthorized battery pack 90 ′ does not have a magnetic sheet.

  As such a second unauthorized battery pack 90 ', for example, a battery pack that is equivalent to the performance of the battery cell, coincides only with the outside shape, and is a genuine product for other mobile phones that do not have a magnetic field communication function. And an unauthorized battery pack having a higher imitation level than the first unauthorized battery pack.

Here, the psychology of a fraudulent contractor when making a counterfeit product of the battery pack 90 will be considered. Since it is sufficient that the cellular phone 1 operates, the original capability is completely obtained when the battery cell has an outer shape suitable for the battery mounting portion 23 and a battery cell having a voltage and current value substantially similar to the battery cell 91. If it is not asked whether or not, the operation of the mobile phone 1 can be performed. Further, since the first strip line 92 is connected to a terminal that seems to be used for discrimination, the counterfeit product supplier is expected to imitate so far. However, it will be imagined that the magnetic sheet 93 will not be affixed to the counterfeit because it has been found that it has no effect on the capacity of the battery pack.
That is, the second unauthorized battery pack 90 ′ includes the first strip line 92, the discrimination electrode terminal 90c, and the like.

  The transmission wave transmitted from the transmitter 84a is fed (received) to the first strip line 92 of the battery pack 90 'through the determination terminal 83 and the determination electrode terminal 90c, and is radiated. The second strip line 85 of the operation unit side body 2 receives the radiated carrier wave according to the coupling amount in the high frequency coupling with the first strip line 92 of the battery pack 90 ′. The carrier wave received by the second strip line 85 is detected through the filter 84d and the detection unit 84b in the battery discrimination circuit unit 84.

  For example, the comparison unit 84c compares the ON period of the signal pattern of the transmission wave transmitted from the transmission unit 84a with the ON period of the signal pattern of the carrier wave rectified through the detection unit 84b, and the both substantially match. When it is determined that the battery pack 90 ′ has been determined, the battery pack 90 ′ is determined to be a genuine product in that it has the first strip line 92. Further, since the magnetic sheet 93 is not provided, high-frequency coupling is performed with almost no elements to be attenuated. Therefore, the transmission wave transmitted from the transmission unit 84a and the signal pattern of the carrier wave rectified through the detection unit 84b are generated. The waveforms are substantially coincident and the wave height is slightly attenuated. At this time, it can be determined that the second unauthorized battery pack does not have the magnetic sheet 93.

<3> Regular battery pack 90 having magnetic sheet 93
Next, the operation of the mobile phone 1 when a genuine battery pack 90 having the magnetic sheet 93 (the battery pack 90 of the present embodiment) is attached to the operation unit side body 2 will be described.

The transmission wave (carrier wave) transmitted from the transmission unit 84a is fed (received) to the first strip line 92 of the battery pack 90 and radiated. Part of the carrier wave radiated from the first strip line 92 is absorbed by the magnetic sheet 93. As a result, the amplitude of the carrier wave received at the second stripline 85 of the operation unit side body 2 is lowered. Therefore, after being rectified through the filter 84d and the detector 84b and then input to the comparator 84c, the comparator 84c can detect that the amplitude level is attenuated. However, since the signal pattern is substantially maintained at this time, the comparison unit 84c substantially matches the input signal pattern, but the wave height of the signal pattern is greatly different. It can be determined that the product is a genuine product having the sheet 93.
With the above method, three types of battery packs can be identified.

  Next, with reference to FIG. 13, the operation of the mobile phone 1 after determining whether the battery pack is genuine (genuine product / unauthorized product) will be described. FIG. 13 is a diagram illustrating a flowchart of the operation of the mobile phone 1.

  In step S1, the comparison unit 84c compares the signal pattern of the transmission wave with the signal pattern of the reception wave. If it is determined that both signal patterns are substantially the same (regardless of whether the signal voltage is large or small), it is determined that the battery pack may be a genuine product, and the process proceeds to step S2.

  On the other hand, if it is determined that the two signal patterns do not match, it can be clearly determined that the battery pack is an unauthorized product, and therefore the power supply circuit 86b is controlled to be OFF by the control unit 86c, and the activation of the mobile phone 1 is stopped. (Step S3). Instead of canceling the activation of the mobile phone 1, the operation of the mobile phone 1 is disabled and, for example, the main display unit 34a indicates that “an illegal battery pack is installed”. It can also be displayed and notified to the user.

  In step S2, it is determined whether the wave height (V) of the signal pattern of the received wave is equal to or greater than a threshold value. The threshold value is set to a value suitable for determining the presence or absence of the magnetic sheet in the battery pack, and depends on the characteristics of the magnetic sheet 93 and the frequency of the carrier wave. Manufacturers hold it as confidential information. When a regular battery pack 90 having the magnetic sheet 93 is attached, the wave height (V) of the signal pattern of the received wave becomes less than the threshold (NO). In this case, since the problem does not occur even if the battery pack is used, the power supply circuit 86b is ON-controlled by the controller 86c, and the mobile phone 1 is normally activated (step S4).

On the other hand, when a battery pack not having a magnetic sheet is attached, the wave height (V) of the signal pattern of the received wave is equal to or higher than the threshold value (YES).
By the way, in this case, when the battery cell 91 is the same as a regular product and is a battery pack for a mobile phone of the same manufacturer that is merely non-compliant with magnetic field communication, non-contact communication by magnetic field communication must be performed. If there is no particular problem. And when performing non-contact communication, since it does not have a magnetic sheet as mentioned above, the magnetic field antenna 86g cannot obtain a prescribed performance. In addition, in the case of YES in step S4, the possibility of being a highly accurate imitation battery pack cannot be discarded.

  Therefore, in step S5, the mobile phone is determined to be a non-contact type IC card compatible type. Whether the mobile phone is compatible with a non-contact type IC card may be recognized by the control unit 86c itself at the time of shipment from the manufacturer. Alternatively, it may be determined whether or not an application program for using the non-contact type IC card is stored in the storage unit 86a.

  If it is determined that the mobile phone is compatible with the non-contact type IC card, the mobile phone 1 is activated in step S6 with the functions corresponding to the non-contact type IC card limited (such as The activation is hereinafter referred to as “restricted activation”). The reason for the limited activation is that in this state, there is a problem in performing an operation related to the non-contact type IC card, but a function unrelated to the non-contact type IC card (for example, a simple call) can be performed without any problem. Therefore, only the operation corresponding to the non-contact type IC card is restricted so that other functions can be used. However, since there is a possibility that the battery pack is an unauthorized battery pack with a high imitation level, the main display unit 34a or the like is informed that “an unauthorized battery pack may be attached”, and the user operates the operation key group 11. The activation of the mobile phone is continued only when an operation to accept is performed (step S6).

On the other hand, when it is determined that the mobile phone 1 is not a non-contact IC card compatible type (step S5 “NO”), it is determined that the terminal does not perform magnetic field communication itself, and therefore a magnetic sheet is provided. Even if the battery pack is not used, no particular problem occurs. However, as in the case of step S5 “YES”, there is a possibility that the battery pack is an unauthorized battery pack with a high imitation level. The power supply circuit 86b is ON-controlled by the unit 86c, and the mobile phone 1 is normally activated (step S4).
When the main display unit 34a notifies that there is a possibility of an unauthorized product, if the user does not approve, the activation of the power supply is stopped.

After that, when the cellular phone 1 is activated or when the non-contact IC card compatible function is activated, the main display unit 34a of the cellular phone 1 displays "not a regular battery pack is installed" to notify the user. You can also
Further, the non-contact IC card antenna (that is, the magnetic field antenna 86g) has a configuration in which the resonance frequency can be adjusted, and when it is determined “YES” in step S5, the battery does not have a magnetic sheet. The resonance frequency may be adjusted so that the antenna characteristics are optimal even for the pack 90 '.

  According to the battery pack 90 of the present embodiment, the first strip line 92 whose one end 92a is connected to the discrimination electrode terminal 90c and the magnetic sheet 93 that is pasted so as to cover the battery cell 91 and the first strip line 92 are provided. I have. Therefore, by devising the configuration of the mobile phone 1, as described above, the authenticity of the battery pack and / or the presence or absence of the magnetic sheet in the battery pack can be easily determined. Therefore, even if an unauthorized product having the same shape and voltage, or a genuine product having the same shape and voltage but having no magnetic sheet is attached to the mobile phone 1, such a state can be easily determined. .

  Further, since the first strip line 92 is a passive component, it does not consume extra current. In addition, since the first strip line 92 can be formed of an inexpensive member, the cost increase of the battery pack 90 can be suppressed, and the first strip line 92 can be formed of a thin member, so that the size of the battery pack 90 can be increased. (In particular, an increase in size in the thickness direction) can be suppressed.

  In addition, the mobile phone 1 according to the present embodiment controls the transmission unit 84a that transmits a predetermined transmission wave and the transmission unit 84a to transmit the predetermined transmission wave, and transmits the transmission wave in the first stripline 92. A control unit 86c that compares the received wave with the transmitted wave and determines whether the battery pack attached has a magnetic sheet based on the deterioration state of the received wave with respect to the transmitted wave.

  As described above, since the battery pack 90 includes the first strip line 92 and the mobile phone 1 includes the transmission unit 84a and the control unit 86c, the authenticity of the battery pack and / or the presence or absence of a magnetic sheet in the battery pack can be easily obtained. Can be determined. Therefore, even if an unauthorized product having the same shape and voltage, or a genuine product having the same shape and voltage but having no magnetic sheet is attached to the mobile phone 1, such a state can be easily determined. .

  If the control unit 86c determines that a battery pack that does not have a magnetic sheet is mounted, the control unit 86c causes the main display unit 34a and / or the sub display unit 36a to display that the magnetic field communication unit 86f is unusable. . Therefore, it is possible to easily notify the user that the magnetic field communication unit 86f cannot be used.

  If the control unit 86c determines that a battery pack that does not have a magnetic sheet is attached, the control unit 86c adjusts the antenna matching circuit of the magnetic field communication unit 86f to match the state when the magnetic sheet is not provided. To do. Therefore, the influence by the battery pack which does not have a magnetic sheet can be suppressed to the minimum, and the said battery pack can be utilized.

  As mentioned above, although one Embodiment of this invention was described, this invention is not restrict | limited to embodiment mentioned above, It can change suitably. For example, as shown in FIGS. 14 and 15, the second strip line 85 ′ may be configured from a pattern printed on the surface of the main circuit board 80. FIG. 14A is a rear view (corresponding to FIG. 8A) showing the operation unit side body 2 having a different configuration of the second stripline 85 ′ from the rear case 22 side, and FIG. FIG. 9 is a front view of the battery pack 90 as viewed from the first strip line 92 side (corresponding to FIG. 8B). 15 is a cross-sectional view (corresponding to FIG. 9) schematically showing a state where the battery pack 90 is removed from the operation unit side body 2 shown in FIG. The second strip line 85 'is covered with an insulating cover sheet 85c.

  In the embodiment, the transmitter 84a of the battery discrimination circuit 84 is electrically connected to the first strip line 92 via the discrimination terminal 83 and the discrimination electrode terminal 90c, and the detector 84b is connected to the second strip line. However, conversely, the transmitter 84a of the battery discriminating circuit 84 is electrically connected to the second stripline 85, and the detector 84b is connected to the discriminating terminal 83 and discriminating electrode. Even if it is electrically connected to the first strip line 92 via the terminal 90c, the same function can be realized.

  In addition, by changing the shape, size, and conductivity of the stripline for each model in advance, even if it is configured so that regular detection is not possible unless it is a regular battery pack, It can be determined whether or not.

  The battery pack 90 may include an ID information storage unit that stores unique ID information for identifying the battery pack 90. In this case, the ID information storage unit is electrically connected to the determination electrode terminal 90c. The

  The connecting portion 4 in the embodiment connects the display unit side body 3 and the operation unit side body 2 so as to be openable and closable around the opening / closing axis X, but the connecting unit 4 is connected to the display unit side body 3. And the operation unit side body 2 are connected so as to be openable / closable around the opening / closing axis X, and a so-called biaxial hinge mechanism is also provided. Good.

  In addition, the portable electronic device of the present invention is not foldable as in the above-described embodiment, and one case is slid in one direction from the state where the operation unit side case 2 and the display unit side case 3 are overlapped. It may be a slide-type portable electronic device. In addition, it may be a rotary (revolver) portable electronic device in which one housing is rotated around an axis line along the overlapping direction of the operation unit side body 2 and the display unit side body 3. .

  The battery pack of the present invention can be applied to portable electronic devices other than mobile phones. Examples of portable electronic devices other than cellular phones include PHS (registered trademark: Personal Handyphone System), portable game machines, portable navigation devices, PDAs (Personal Digital Assistants), and notebook personal computers.

FIG. 2 is a perspective view showing the cellular phone 1 according to the embodiment of the present invention in a state where the operation unit side body 2 and the display unit side body 3 are opened. FIG. 3 is a perspective view of the display unit side body 3 viewed from the rear case 30b side in a state in which the mobile phone 1 shown in FIG. 1 is folded. It is a disassembled perspective view of the operation part side housing | casing 2 shown in FIG. It is a perspective view which fractures | ruptures and shows a part about the battery pack 90 of this embodiment. FIG. 5 is a schematic front view showing a part of the battery pack 90 shown in FIG. FIG. 6 is a schematic exploded view of the battery pack 90 shown in FIG. 5. FIG. 6 is a circuit block diagram of the battery pack 90 shown in FIG. 5. (A) is the rear view which shows the operation part side housing | casing 2 of the state from which the cover part 24 was removed from the rear case 22 side, (b) looked at the battery pack 90 from the 1st stripline 92 side. It is a front view. FIG. 9 is a cross-sectional view of a portion A-A ′ (see FIG. 8) schematically showing a state where the battery pack 90 is removed from the operation unit side body 2. 4 is a cross-sectional view schematically showing a state in which a battery pack 90 is mounted on the operation unit side body 2. FIG. It is a functional block diagram which shows the function of the mobile telephone 1 of this embodiment. 4 is a circuit block diagram showing a battery discrimination circuit unit 84. FIG. 6 is a diagram showing a flowchart of the operation of the mobile phone 1. FIG. FIG. 8A is a rear view (corresponding to FIG. 8A) showing the operation unit side body 2 having a different configuration of the second strip line 85 ′ from the rear case 22 side, and FIG. FIG. 9 is a front view (corresponding to FIG. 8B) viewed from the first stripline 92 side. FIG. 15 is a cross-sectional view (corresponding to FIG. 9) schematically showing a state where the battery pack 90 is removed from the operation unit side body 2 shown in FIG. 14.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable electronic device 34a Main display part 36a Sub display part 82 Power supply terminal 83 Discrimination terminal 84a Transmission part 90 Battery pack 90a Pack positive electrode terminal 90b Pack negative electrode terminal 90c Discrimination electrode terminal 91 Battery cell 91a Positive electrode 91b Negative electrode 92 Strip line 92a One end 93 Magnetic Sheet 86c Control unit 86f Magnetic field communication unit

Claims (4)

A battery pack that is attached to a portable electronic device and supplies power to the portable electronic device,
A battery cell;
A pack positive electrode terminal and a pack negative electrode terminal that are electrically connected to the positive electrode and the negative electrode of the battery cell, respectively, and are exposed on the surface of the battery pack;
A discrimination electrode terminal exposed on the surface of the battery pack together with the pack positive terminal and the pack negative terminal,
A strip line having one end connected to the discrimination electrode terminal;
A battery pack, comprising: a magnetic sheet attached to cover the battery cell and the strip line. And the battery cell, wherein each electrically connected to the positive electrode and the negative electrode of the battery cell, determine the electrode terminals are exposed and the pack positive electrode terminal and the pack negative electrode terminal being exposed on the front surface, together with the pack positive terminal and the pack negative terminal on the surface when the first and the strip line having one end in the determination electrode terminals are connected, when the battery pack is attached to Ru with a a portable electronic device driven by the supply of electric power by the battery pack,
When the battery pack is mounted, a power supply terminal that comes into contact with and is in contact with the pack positive terminal and the pack negative terminal,
A determination terminal that contacts and is in contact with the determination electrode terminal when the battery pack is mounted;
A second stripline that couples with the first stripline at a high frequency when the battery pack is mounted;
A detector connected to the second stripline;
A transmission unit for transmitting a predetermined transmission wave;
A control unit ,
When the battery pack is mounted, the control unit causes the transmission unit to transmit the predetermined transmission wave to the first strip line via the determination terminal and the determination electrode terminal. Is extracted by the detection unit, the extracted reception wave is compared with the transmission wave, and the received wave is attached based on the deterioration state of the reception wave with respect to the transmission wave. It is determined whether the said battery pack has a magnetic sheet which covers the said battery cell and the said 1st stripline, The portable electronic device characterized by the above-mentioned. When the measured deterioration rate calculated from the result of the comparison between the transmission wave and the reception wave is different from the assumed deterioration rate assumed in advance, the battery pack not having the magnetic sheet is attached. The portable electronic device according to claim 2, wherein the portable electronic device is determined to be. A magnetic field communication unit for performing magnetic field communication, and a display unit;
Wherein, the when the battery pack without the magnetic sheet is determined to be equipped, on the display unit, according to claim 3, wherein the magnetic field communication unit, characterized in that the display that is not available The portable electronic device as described in.

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