JP5513346B2 - Cover for mobile phone - Google Patents

Description

  The present invention relates to a mobile phone cover for protecting a mobile phone.

  There is a so-called electronic key system in which unlocking of the vehicle door is automatically executed when the user holding the electronic key approaches the vehicle door, and starting of the engine is permitted when the user enters the vehicle interior. It is well known. In this electronic key system, when an electronic key enters a communication area set around a vehicle door or a communication area set in a vehicle interior, wireless communication is performed between an on-vehicle device provided in the vehicle and the electronic key. In addition, the electronic key is authenticated through this wireless communication. When the authentication of the electronic key is established, various controls such as unlocking the vehicle door and permission to start the engine are executed. According to such an electronic key system, various operations of the vehicle are automatically performed without direct manual operation by the user, so that the convenience of operation of the vehicle is greatly improved.

  By the way, in such an electronic key system, since the user needs to carry the electronic key, the number of items possessed by the user increases, and the portability may be impaired.

  Therefore, conventionally, for example, as shown in Patent Document 1, a method of mounting a function of an electronic key on a mobile phone having a high penetration rate has been proposed. According to such a method, since the user can unlock the vehicle door only by holding the mobile phone, the portability is improved by the amount not having the electronic key.

JP 2007-181119 A

  As described above, by mounting the function of the electronic key on the mobile phone, the portability is surely improved. However, since existing mobile phones usually do not have an electronic key function, if such a mobile phone is newly provided with an electronic key function, the hardware and software of the mobile phone may be significantly changed, Or it is necessary to add new hardware and software to the mobile phone. For this reason, it is difficult for a user who has an existing mobile phone.

  Such a problem is not limited to the electronic key system of the vehicle, but is common to an electronic key system that locks and unlocks the front door through wireless communication between the electronic key and the locking / unlocking device provided on the front door, for example. It is a problem to do.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a cover for a mobile phone that can improve convenience when the mobile phone has a function of an electronic key.

In order to solve the above-mentioned problem, the invention according to claim 1 includes a cover main body that covers the outer surface of the mobile phone, and a functional part of an electronic key that is provided in the cover main body and constitutes an electronic key system And a module part , wherein the module part is detachable from the cover body .

  According to this configuration, even if the user has a mobile phone that does not have an electronic key function, the module unit provided in the cover main body can be simply installed by attaching the cover main body to the mobile phone. The electronic key system can be used. Therefore, since the electronic key system can be used without requiring significant changes in the hardware and software of the mobile phone, the convenience is improved.

In addition , when a user purchases a new mobile phone, the module unit is removed from the cover body corresponding to the mobile phone before replacement, and then the module is attached to the cover main body corresponding to the new mobile phone. Since the electronic key system can be used even in the mobile phone, the convenience is further improved.

Invention according to claim 2, in the mobile phone cover of claim 1, the module unit, the portion except for the antenna of the functional components of the electronic key is incorporated in the cover body, The gist is that the antenna is provided integrally.

  When the module part in which the functional parts of the electronic key are incorporated is provided in the cover body, the following problems may occur depending on the positional relationship between the metal body provided in the mobile phone and the module part. That is, when a wireless signal is transmitted / received via an antenna built in the module unit, the wireless signal is blocked by the metal body of the cellular phone, and the wireless signal may not be transmitted / received appropriately in the module unit. There is. If the wireless signal cannot be properly exchanged in the module unit in this way, there is a possibility that the function required as the electronic key system may be hindered. For such a problem, for example, a method of arranging the antenna in the module part so as not to interfere with the metal body of the mobile phone is also conceivable, but the position of the metal body of the mobile phone is different for each mobile phone, There is a situation that it is difficult to arrange an antenna so as to be optimal for all mobile phones. In this regard, if the antenna is integrally provided in the cover body as in the above configuration, the user can arrange the antenna so that the position and shape are optimal for each cover corresponding to various mobile phones. The influence on the wireless communication due to the metal body of the mobile phone described above can be reduced only by changing the cover when the mobile phone is replaced. For this reason, the module unit can perform stable wireless communication.

In this case, when the cover main body is configured as a divided body composed of two cover members as in the third aspect of the invention, when the cover main body is mounted on the mobile phone, The convenience will be improved.

Invention according to claim 4, abutment of the mobile phone cover according to claim 3, in one of the cover member of the two cover members constituting the cover body, with the other side of the cover member The gist of the invention is that a concave portion is formed on the surface to accommodate the module portion inserted through the opening.

  According to this configuration, when two cover members are assembled by the user, the opening of the recess can be closed by the other cover member, so that an increase in the number of parts can be avoided and the module portion from the recess can be avoided. Can be prevented from falling off.

The invention described in claim 5, abutment of the mobile phone cover according to claim 3, in one of the cover member of the two cover members constituting the cover body, with the other side of the cover member The gist is that a recess having an opening on the surface and accommodating a mechanical key inserted from the opening is formed.

  According to this configuration, since the mechanical key can be attached to the cellular phone by attaching the cover to the cellular phone, convenience is improved. In addition, when the two cover members are assembled by the user, the opening of the recess can be closed by the other cover member, thus preventing the mechanical key from falling off the recess while avoiding an increase in the number of parts. You will be able to.

The invention described in claim 6, in the mobile phone cover according to claim 3, in one of the cover member of the two cover members constituting the cover body is in the operating power supply of the module unit cell And the other cover member is formed with a battery cover for covering the battery exposed from the one cover member.

  According to this configuration, when the two cover members are separated by the user, the battery of the module unit is exposed from the one cover member. Therefore, the user holds the exposed part to remove the battery from the module unit. It can be easily taken out. For this reason, battery replacement becomes easy. Further, when the two cover members are assembled to each other by the user, the battery is covered by the battery cover formed on the other cover member, so that it is not necessary to separately provide the battery cover. Therefore, the number of parts can be reduced.

Invention according to claim 7, in the mobile phone cover according to claim 3, in one of the cover member of the two cover members constituting the cover body, the contact surface between the other side of the member The gist is that the mechanical key is formed integrally with the other cover member, and a concave portion for accommodating the mechanical key is formed in the other cover member.

  If the mechanical key is integrally formed on one of the two members constituting the cover body as in the same configuration, the mechanical key is attached to the mobile phone cover without increasing the number of parts. Can be provided.

  According to the mobile phone cover of the present invention, it is possible to improve convenience when the mobile phone has the function of an electronic key.

The perspective view which shows the perspective structure in the state with which the mobile phone cover concerning 1st Embodiment concerning this invention was mounted | worn with the mobile phone. The perspective view which shows the disassembled perspective structure about the cover for mobile phones of the same 1st Embodiment. The perspective view which shows the perspective structure about the cover for mobile phones of the said 1st Embodiment. The perspective view which shows the perspective structure in the state with which the other example of the cover for mobile phones of the said 1st Embodiment was mounted | worn with the mobile phone. The perspective view which shows the disassembled perspective structure about the other example of the mobile phone cover of the first embodiment. The block diagram which shows the system configuration | structure of the electronic key system of a vehicle. The perspective view which shows the disassembled perspective structure about the modification of the cover for mobile telephones of the said 1st Embodiment. Sectional drawing which shows the cross-sectional structure along the AA line of FIG. The perspective view which shows the disassembled perspective structure about 2nd Embodiment of the cover for mobile phones concerning this invention. The perspective view which shows the perspective structure of the antenna part about the cover for mobile telephones of the said 2nd Embodiment. Sectional drawing which shows the cross-sectional structure along the BB line of FIG. The perspective view which shows the disassembled perspective structure about the other example of the cover for mobile phones of the said 2nd Embodiment. The perspective view which shows the perspective structure of the antenna part about the other example of the cover for mobile telephones of the said 2nd Embodiment. Sectional drawing which shows the cross-sectional structure along CC line | wire of FIG. The perspective view which shows the disassembled perspective structure about 3rd Embodiment of the cover for mobile phones concerning this invention. The perspective view which shows the front structure about the cover for mobile telephones of the same 3rd Embodiment. Sectional drawing which shows the structure of the cross section containing the mechanical key of the 2nd cover member about the mobile phone cover of the same 3rd embodiment. The perspective view which shows the disassembled perspective structure about 4th Embodiment of the cover for mobile phones concerning this invention. Sectional drawing which shows the structure of the cross section containing the button battery of the cover member about the cover for mobile telephones of the said 4th Embodiment. The perspective view which shows the disassembled perspective structure about 5th Embodiment of the cover for mobile phones concerning this invention.

<First Embodiment>
A first embodiment of a mobile phone cover according to the present invention will be described below with reference to FIGS. First, the structure of the mobile phone cover according to the present embodiment will be described with reference to FIGS. 1 and 2. It is assumed that the cellular phone 1 illustrated in FIGS. 1 and 2 is not equipped with the electronic key function of the vehicle electronic key system.

  As shown in FIG. 1, a mobile phone 1 is a mobile phone formed in a thin rectangular parallelepiped shape, and a touch panel for displaying various information or performing various operations on the mobile phone 1 on the front surface thereof. 11 and a speaker 12 and operation buttons 13 that are used for telephone calls. In addition, a microphone (not shown) used for a telephone call or the like is disposed on the bottom surface of the mobile phone 1. A cover main body 2 is attached to the mobile phone 1 so as to expose parts such as the touch panel 11, and the outer surface of the mobile phone 1 is protected by the cover main body 2.

  Here, as shown in FIG. 2, in the present embodiment, the cover body 2 includes a first cover member 20 attached to the upper part of the mobile phone 1 and a second cover attached to the lower part of the mobile phone 1. By configuring as a divided body with the member 21, convenience in mounting on the mobile phone 1 is enhanced. The cover body 2 is made of, for example, rubber or plastic. Further, the first cover member 20 and the second cover member 21 have an unillustrated assembly structure for assembling these members integrally. Here, a recess 22 having an opening 22 a is formed in the contact surface 21 b with the first cover member 20 in the back surface protection portion 21 a that is a portion that protects the back surface of the mobile phone 1 in the second cover member 21. The module part 3 in which functional parts of the electronic key of the electronic key system are integrated is accommodated in the recess 22. The module unit 3 is a rectangular parallelepiped member having the same plate thickness as the back surface protection unit 21a, and is recessed so that the front surface, the back surface, and the top surface are flush with the respective surfaces of the back surface protection unit 21a. 22 is accommodated. In addition, the two inner wall surfaces facing each other in the recess 22 are respectively formed with protrusions 23 that protrude toward the inside of the recess 22 and extend in the vertical direction (directions indicated by arrows a1 and a2). . On the other hand, on the right side wall and the left side wall of the module unit 3, groove portions 30 that engage with the projecting portions 23 are respectively formed. Then, when the module part 3 is inserted from the opening 22a of the recess 22, the projecting part 23 formed in the recess 22 engages with the groove part 30 of the module part 3, so that the module part 3 becomes the second cover member. 21 is assembled. As shown in FIG. 3, when the first and second cover members 20 and 21 are assembled to each other by the user, the opening 22 a of the recess 22 is closed by the first cover member 20. Can be prevented from falling off. Further, when the first and second cover members 20 and 21 are separated by the user, the module unit 3 can be taken out from the recess 22.

  Next, a mobile phone cover having an outer shape different from that of the mobile phone 1 will be described with reference to FIGS. 4 and 5. It is assumed that the cellular phone 4 illustrated in FIG. 4 does not have the electronic key function of the vehicle electronic key system.

  As shown in FIG. 4, the cellular phone 4 has substantially the same external shape as the cellular phone 1 illustrated in FIG. 1, but has protrusions on the top and bottom surfaces. The external shape is different from that of the mobile phone 1. A cover body 5 having a shape corresponding to the outer shape is attached to the outer surface of the mobile phone 4. Here, as shown in FIG. 5, the cover main body 5 has substantially the same structure as the cover main body 2, and is basically a first cover member mounted on the upper portion of the mobile phone 4. 50 and a second cover member 51 attached to the lower part of the mobile phone 4. Among these, the back cover 51a, which is the part that protects the back of the mobile phone 4 in the second cover member 51, has an opening 52a on the contact surface 51b with the first cover member 50, and the concave portion. A recess 52 having the same shape as that of 22 is formed. And the protrusion part 53 engaged with the groove part 30 of the module part 3 is also formed in the right side wall and left side wall of this recessed part 52, respectively. Therefore, for example, when the user replaces the cellular phone 1 with the cellular phone 4, the user removes the module unit 3 from the cover body 2 illustrated in FIG. 2, and then removes the module unit 3 from the recess 52 illustrated in FIG. 5. The module unit 3 can be attached to the cover body 5 corresponding to the mobile phone 4.

  Next, with reference to FIG. 6, the electrical configuration of the module unit 3 and the configuration and operation of an electronic key system for a vehicle including the module unit 3 will be described. The vehicle electronic key system is a system that performs unlocking of the vehicle door, permission to start the engine, and the like through wireless communication between the in-vehicle device 6 mounted on the vehicle and the module unit 3.

  As shown in FIG. 6, the module unit 3 includes a receiving circuit 32 for receiving an LF band radio signal (request signal) transmitted from the in-vehicle device 6, and the in-vehicle device 6 based on reception of the request signal. A transmission circuit 34 for transmitting a response signal in the UHF band is provided. The generation of the response signal based on the request signal received through the receiving circuit 32 and the transmission control of the generated response signal through the transmission circuit 34 are integrated through the control unit 35 provided in the module unit 3. Done. The control unit 35 includes an arithmetic processing unit (CPU), a non-volatile memory 35a, and the like, and is configured mainly with a microcomputer. The module unit 3 includes a button type battery 36, and the button type battery 36 secures operating power for the reception circuit 32, the transmission circuit 34, and the control unit 35.

  In the module unit 3 having such a configuration, a request signal is issued from the in-vehicle device 6 to the communication area A set around the vehicle door or the communication area B set in the vehicle interior. When the mobile phone 1 or the mobile phone 4 possessed by the user enters this communication area, the electronic key system of the vehicle operates as follows. That is, in this system, the request signal transmitted from the in-vehicle device 6 is received by the receiving circuit 32 via the receiving antenna 31, and the request signal is transmitted to the control unit 35. When the request signal is transmitted in this way, the control unit 35 generates a response signal including an identification code (ID code) stored in the built-in memory 35a and transmits the response signal to the transmission circuit 34. Is transmitted to the vehicle-mounted device 6 via the transmission antenna 33. When the response signal is transmitted in this manner, the in-vehicle device 6 receives the response signal and collates the ID code included in the received response signal with the ID code registered in advance in itself. When the ID codes match each other, the vehicle door is unlocked through the door lock mechanism, or the start of the vehicle-mounted engine is permitted by the engine starter.

  According to such a configuration as the cover for a mobile phone, even if the user has the mobile phone 1 that does not have the function of the electronic key, the user simply attaches the cover body 2 to the mobile phone 1. Thus, the electronic key system of the vehicle can be used through the module unit 3 provided in the cover body 2. Therefore, since the electronic key system can be used without requiring significant changes in the hardware or software of the mobile phone 1, convenience is improved.

  For example, when the user replaces the cellular phone 1 with the cellular phone 4 illustrated in FIG. 5, the user removes the module unit 3 from the cover body 2 corresponding to the cellular phone 1, and then attaches the module unit 3 to the cellular phone. 4 is attached to the cover body 5, the mobile phone 4 can use the electronic key system, and the convenience is further improved. Further, since the ID code registered in the module unit 3 can be used as it is, the convenience is improved in that it is not necessary to register the ID code in the in-vehicle device 6 when the mobile phone is replaced. It becomes like this.

As described above, according to the mobile phone cover according to the present embodiment, the following effects can be obtained.
(1) The cover 3 and 5 that cover the outer surfaces of the cellular phones 1 and 4 are provided with the module unit 3 in which the functional parts of the electronic key are incorporated. Thereby, the user can use the electronic key system of the vehicle without requiring significant changes in the hardware and software of the mobile phones 1 and 4, thereby improving convenience.

  (2) The module unit 3 is provided to be removable from the cover main bodies 2 and 5. As a result, even when the user replaces the mobile phone, the user simply uses the electronic key system of the vehicle even after the replacement mobile phone by simply attaching the module unit 3 to the cover body corresponding to the mobile phone after replacement. Therefore, convenience is further improved. Further, since it is not necessary to perform an operation for registering the ID code in the in-vehicle device 6, the convenience is improved in this respect.

  (3) The cover body 2 is configured as a divided body including the first and second cover members 20 and 21. Further, the cover main body 5 is configured as a divided body including the first and second cover members 50 and 51. Thereby, the convenience when the cover body 2 is mounted on the mobile phone 1 and the convenience when the cover body 5 is mounted on the mobile phone 4 are enhanced.

  (4) The second cover members 21 and 51 have openings 22a and 52a on the contact surfaces 21b and 51b with the first cover members 20 and 50, and are inserted from the openings 22a and 52a. The concave portions 22 and 52 for accommodating the module portion 3 are formed. As a result, it is possible to prevent the module unit 3 from falling off the recess 22 while avoiding an increase in the number of components.

(Modification)
7 and 8 show a modification of the mobile phone cover according to the first embodiment.
As shown in FIG. 7, in this modification, the cover body 2 is formed integrally. In addition, as shown in FIG. 8, a concave portion 2 b for detachably housing the module portion 3 is formed in the back surface protection portion 2 a that is a portion that protects the back surface of the mobile phone 1 in the cover body 2. Yes. The cover body 5 corresponding to the mobile phone 4 also adopts the same configuration. Even with such a configuration as a cover for a mobile phone, an effect according to the effects (1) and (2) according to the first embodiment can be obtained.

<Second Embodiment>
Next, a second embodiment of the mobile phone cover according to the present invention will be described with reference to FIGS. The basic structure of the second embodiment also conforms to the structure illustrated in FIGS. 1 to 5, and here, as a diagram corresponding to FIG. 2, the cover body corresponding to the mobile phone 1 is used. The perspective structure of 2 is shown in FIG. Hereinafter, a description will be given focusing on differences from the first embodiment.

  When the module unit 3 in which the functional parts of the electronic key are incorporated is provided in the cover main body 2 as in the first embodiment, the positional relationship between the metal body provided in the mobile phone 1 and the module unit 3 Depending on the situation, the following problems may occur. That is, when a request signal and a response signal are exchanged via the reception antenna 31 and the transmission antenna 33, there is a possibility that the exchange of the request signal and the response signal is hindered by the metal body of the mobile phone 1. In this case, since the module unit 3 cannot appropriately exchange the request signal and the response signal, there is a possibility that the function required as the electronic key system may be hindered. In order to deal with such a problem, for example, a method of arranging the antennas 31 and 33 in the module unit 3 so as not to interfere with the metal body of the mobile phone 1 is conceivable. Since it is different for each mobile phone, there is a situation that it is difficult to arrange each antenna so as to be optimal for all mobile phones.

  Therefore, in the present embodiment, among the functional parts of the electronic key, the receiving antenna 31 and the transmitting antenna 33 are integrally provided on the cover body. The cover corresponding to each mobile phone is provided with a receiving antenna 31 and a transmitting antenna 33 so as to have an optimal position and shape.

  Specifically, as shown in FIG. 9, the antenna unit 8 including the reception antenna 31 and the transmission antenna 33 is provided in the back surface protection unit 20 a serving as a part for protecting the back surface of the mobile phone 1 in the first cover member 20. Is embedded by insert molding. As shown in FIG. 10, the antenna unit 8 is configured by sealing (molding) a substrate 80 on which the receiving antenna 31 and the transmitting antenna 33 are mounted with a molding member. Among these, the receiving antenna 31 includes three coil antennas 31a to 31c that individually receive the LF band request signals in three orthogonal directions, and each of the coil antennas 31a to 31c is the mobile phone 1. When the cover body 2 is attached to the mobile phone 1, it is arranged at a position in the figure so as to be separated from the metal body of the mobile phone 1. Thereby, when receiving a request signal via the coil antennas 31a to 31c, the influence of the metal body of the mobile phone 1 can be avoided, so that the request signal can be appropriately received.

  On the other hand, the transmission antenna 33 is a loop antenna disposed in a ring shape along the outer periphery of the substrate 80. As shown in FIG. 11, the cross-sectional structure along the line BB in FIG. 10 is provided on the transmitting antenna 33 with a step protruding in a direction orthogonal to the outer surface S1m of the metal body 1a provided in the mobile phone 1. A portion 33a is formed. As a result, in the portion 33b extending in the direction orthogonal to the outer surface S1m of the metal body 1a in the stepped portion 33a, the outer surface S1m of the metal body 1a serves as a conductor surface. When power is supplied, a mirror image of the portion 33b is formed on the metal body 1a side. For this reason, since the signal strength of the response signal transmitted from the transmission antenna 33 can be increased, the response signal is accurately transmitted even in a situation where the transmission of the response signal is hindered by the metal body of the mobile phone 1. Be able to send.

  As shown in FIGS. 9 and 10, metal terminals T <b> 1 and T <b> 2 led out from the contact surface 20 b with the second cover member 21 of the back surface protection portion 20 a are connected to the substrate 80. These metal terminals T1 and T2 are portions that function as an input terminal and an output terminal of the antenna unit 8.

  On the other hand, the module unit 3 of the present embodiment includes elements other than the reception antenna 31 and the transmission antenna 33 among the functional components of the electronic key, that is, the reception circuit 32, the transmission circuit 34, the control unit 35, and the button type battery 36. It has been incorporated. Further, as shown in FIG. 9, the module part 3 has terminals P1 and P2 that contact the metal terminals T1 and T2 when the first and second cover members 20 and 21 are assembled by the user. Is provided. And the module part 3 and the antenna part 8 are electrically connected because metal terminal T1, T2 contacts these terminals P1, P2.

  Next, the cover body 5 of the mobile phone 4 will be described with reference to FIGS. FIG. 12 shows an exploded perspective structure of the cover body 5 corresponding to the mobile phone 4 as a diagram corresponding to FIG.

  As shown in FIG. 12, this cover main body 5 also has substantially the same structure as the cover main body 2 illustrated in FIG. That is, the antenna portion 9 including the reception antenna 31 and the transmission antenna 33 is embedded in the back surface protection portion 50a, which is a portion that protects the back surface of the mobile phone 4 in the first cover member 50, by insert molding or the like. As shown in FIG. 13, the antenna unit 9 is configured by sealing a substrate 90 on which coil antennas 31a to 31c constituting the receiving antenna 31 and a loop antenna constituting the transmitting antenna 33 are mounted with a molding member. Has been. Among these, the coil antennas 31 a to 31 c are arranged at positions in the drawing so as to be separated from the metal body provided on the mobile phone 4 when the cover body 5 is attached to the mobile phone 4. As apparent from comparison between FIG. 13 and FIG. 10, the arrangement of the coil antennas 31 a to 31 c on the substrate 90 and the arrangement of the coil antennas 31 a to 31 c on the substrate 80 are different from each other. In this embodiment, by appropriately changing the arrangement of the coil antennas 31a to 31c in the respective covers corresponding to various mobile phones as described above, the request signal can be appropriately received by all the mobile phones. Yes.

  On the other hand, as shown in FIG. 14 with a cross-sectional structure taken along line CC in FIG. 13, the transmitting antenna 33 also corresponds to the portion where the metal body 4a of the cellular phone 4 is located in order to increase the signal strength of the response signal. Thus, a step portion 33c protruding in a direction perpendicular to the outer surface S2m is formed. 14 and FIG. 11 described above, the position of the stepped portion 33c on the substrate 90 and the position of the stepped portion 33a on the substrate 80 are different from each other. In this embodiment, by changing the shape of the transmission antenna 33 in each cover corresponding to various mobile phones as described above, it is possible to appropriately transmit the response signal in all the mobile phones.

  According to such a configuration as the cover for a mobile phone, the influence on the wireless communication by the metal body of the mobile phone described above can be reduced only by changing the cover when the user replaces the mobile phone. For this reason, the module unit 3 can perform stable wireless communication.

  As described above, according to the mobile phone cover according to the present embodiment, effects equivalent to or equivalent to the effects (1) to (4) according to the first embodiment can be obtained. The following effects can be obtained.

  (5) The cover main bodies 2 and 5 are provided with the receiving antenna 31 and the transmitting antenna 33 integrally. In addition, among the functional parts of the electronic key, electronic parts excluding the receiving antenna 31 and the transmitting antenna 33 are incorporated in the module unit 3. Accordingly, the module unit 3 can perform stable wireless communication only by changing the cover when the user replaces the mobile phone.

  (6) In the cover main bodies 2 and 5, the coil antennas 31 a to 31 c are arranged so as to be separated from the metal bodies of the mobile phones 1 and 4. As a result, it is possible to avoid the influence of the metal bodies of the mobile phones 1 and 4 on the wireless communication, so that the request signal can be appropriately received.

  (7) The transmitting antenna 33 is provided with stepped portions 33a and 33c that project in a direction orthogonal to the outer surfaces S1m and S2m corresponding to the positions of the metal bodies of the cellular phones 1 and 4. Thereby, since the signal strength of the response signal transmitted from the transmitting antenna 33 can be increased, the response signal can be transmitted accurately.

<Third Embodiment>
Next, a third embodiment of the mobile phone cover according to the present invention will be described with reference to FIGS. The basic structure of the third embodiment also conforms to the structure illustrated in FIGS. 1 to 4, and here, as a diagram corresponding to FIG. 2, the cover body corresponding to the mobile phone 1 is used. An exploded perspective structure of 2 is shown in FIG. Hereinafter, a description will be given focusing on differences from the first embodiment.

  As shown in FIG. 15, in the present embodiment, the module part 3 is insert-molded inside the back surface protection part 21 a of the second cover member 21. In addition, a recess 24 having an opening from the contact surface 21b with the first cover member 20 to the contact surface 21c with the mobile phone 1 is formed in the back surface protection portion 21a. As shown in FIG. 16, the second cover member 21 has a structure in which the entire mechanical key 7 inserted in the direction indicated by the arrow a <b> 1 from the opening 24 a is accommodated in the recess 24. . Incidentally, the mechanical key 7 is inserted into a key cylinder provided in the vehicle door when, for example, mechanically locking and unlocking the vehicle door, etc., and is held by the user as shown in FIG. It has a grip part 71 as a part and a key plate 72 formed with a keyway. Among these, in the grip part 71, the end opposite to the end from which the key plate 72 is led out projects in a direction orthogonal to the direction indicated by the arrow a1, that is, a direction orthogonal to the insertion direction into the recess 24. A gripping portion 71a is formed. In the grip portion 71, a protruding portion 71 b is formed on the contact surface with the inner wall surface of the recess 24. On the other hand, the back protection portion 21a has a through hole 21d that penetrates the contact surface 21c from the inside of the recess 24 as a portion into which the protrusion 71b is inserted when the mechanical key 7 is accommodated in the recess 24. Is formed. In the second cover member 21, the mechanical key 7 is held in the recessed portion 24 by engaging the protruding portion 71b of the mechanical key 7 with the through hole 21d formed in the back surface protection portion 20a. Is done. For this reason, it is possible to prevent the mechanical key 7 from dropping from the recess 24.

  In the cover main body 2 having such a configuration, it is assumed that the first and second cover members 20 and 21 are assembled by the user in a state where the mechanical key 7 is accommodated in the recess 24. At this time, as shown in FIG. 16, the opening 24 a of the recess 24 is closed by the first cover member 20, so that the mechanical key 7 can be prevented from falling off from the recess 24.

  Further, when the mechanical key 7 is taken out from the recess 24, as shown in FIG. 17, the first and second cover members 20, 21 are separated from each other, and the gripping portion of the mechanical key 7 exposed from the recess 24 is obtained. If a finger is hooked on 71a and pressed, an external force in the direction indicated by arrow a2 can be easily applied to the mechanical key 7. The mechanical key 7 can be taken out from the recess 24 by releasing the engagement between the through hole 21d formed in the back protection part 20a and the protrusion 71b of the mechanical key 7 by the external force.

  As described above, according to the mobile phone cover according to the present embodiment, an effect equivalent to or equivalent to the effects (1) and (3) according to the first embodiment can be obtained. The following effects can be obtained.

  (8) The second cover member 21 has a recess 24 that has an opening 24a on the contact surface 21b with the first cover member 20 and accommodates the mechanical key 7 inserted from the opening 24a. It was decided to. Thereby, if the cover main body 2 is attached to the mobile phone 1, the mechanical key 7 can be attached to the mobile phone 1, so that the convenience is improved. Further, it is possible to prevent the mechanical key 7 from falling off the recess 24 while avoiding an increase in the number of parts.

  (9) The grip 71a is formed at the end of the mechanical key 7. Further, the mechanical key 7 is accommodated in the recess 24 in such a manner that the gripping portion 71a is exposed. Thereby, since the mechanical key 7 can be taken out from the recessed part 24 only by pushing the holding part 71a, taking out of the mechanical key 7 becomes easy.

  (10) The contact surface between the mechanical key 7 and the concave portion 22 is provided with a concave / convex engaging structure including the protruding portion 71b and the through hole 21d. Thereby, since the mechanical key 7 can be held in the state of being accommodated in the recess 22, it is possible to prevent the mechanical key 7 from falling off from the recess 22.

<Fourth Embodiment>
Next, a fourth embodiment of the mobile phone cover according to the present invention will be described with reference to FIGS. The basic structure of the fourth embodiment also conforms to the structure illustrated in FIGS. 1 to 4, and here, as a diagram corresponding to FIG. 2, the cover body corresponding to the mobile phone 1 is used. The perspective structure of 2 is shown in FIG.

  As shown in FIG. 18, also in this embodiment, the module portion 3 is insert-molded inside the back surface protection portion 21 a of the second cover member 21 in the same manner as the third embodiment. . The module unit 3 is provided with terminals 38 and 39 which are in contact with a positive electrode terminal provided on the front surface of the button-type battery 36 serving as an operating power source and a negative electrode terminal provided on the rear surface thereof. A button-type battery 36 is sandwiched between 38 and 39. Further, the back surface protection portion 21a of the second cover member 21 has a recess 25 for exposing the button type battery 36 together with the terminals 38 and 39. On the other hand, the contact surface 20b of the first cover member 20 covers the front side portion and the back side portion of the recess 25 when the first and second cover members 20 and 21 are assembled by the user. The battery cover 26 is formed. As shown in FIG. 19, when the first and second cover members 20 and 21 are assembled by the user, the button-type battery 36 and the terminals 38 and 39 are covered by the battery cover 26, and these are externally attached. Protected.

  According to such a configuration as a cover for a mobile phone, since the button-type battery 36 is exposed from the cover body 2 when the user separates the first and second cover members 20, 21, the user has exposed this The button-type battery 36 can be easily taken out from the module unit 3 by gripping the part. For this reason, battery replacement becomes easy. Further, when the first and second cover members 20 and 21 are assembled by the user, the button-type battery 36 is covered by the battery cover 26 formed on the first cover member 20, and therefore a battery cover is provided separately. There is no need. For this reason, it becomes possible to reduce the number of parts.

  As described above, according to the mobile phone cover according to the present embodiment, an effect equivalent to or equivalent to the effects (1) and (3) according to the first embodiment can be obtained. The following effects can be obtained.

  (11) The second cover member 21 is provided with the module part 3 in such a manner that the positive electrode terminal and the negative electrode terminal of the button-type battery 36 serving as the operating power supply for the module part 3 are exposed. Thereby, since the button type battery 36 can be easily taken out from the second cover member 21, battery replacement is facilitated.

  (12) The first cover member 20 is provided with a battery cover 26 for covering the button-type battery 36 exposed from the recess 25. Thereby, since it is not necessary to provide a battery cover separately, the number of parts can be reduced.

<Fifth Embodiment>
Next, a fifth embodiment of the mobile phone cover according to the present invention will be described with reference to FIG. The basic structure of the fifth embodiment also conforms to the structure illustrated in FIGS. 1 to 4, and here, as a diagram corresponding to FIG. The exploded perspective structure of 2 is shown in FIG.

  As shown in FIG. 20, in this embodiment, the mechanical key 27 is integrally formed on the back surface protection portion 20a of the first cover member 20 so as to be led out from the contact surface 20b. In the present embodiment, the cover body 2 is formed of a hard resin material or the like in order to ensure the strength of the mechanical key 27. Further, the back surface protection portion 21 a of the second cover member 21 is formed with a recess 28 having an opening 28 a on the contact surface 21 b with the first cover member 20. The cover main body 2 has a structure in which the mechanical key 27 is accommodated in the concave portion 28 of the second cover member 21 when the first and second cover members 20 and 21 are assembled by the user. . In this embodiment as well, the module part 3 is insert-molded inside the second cover member 21 as in the third and fourth embodiments.

According to such a configuration as a mobile phone cover, the mechanical key 27 can be attached to the cover body 2 without increasing the number of parts.
As described above, according to the mobile phone cover according to the present embodiment, an effect equivalent to or equivalent to the effects (1) and (3) according to the first embodiment can be obtained. The following effects can be obtained.

  (13) The mechanical key 27 is integrally formed on the first cover member 20 so as to be led out from the contact surface 20b. In addition, the first cover member 20 is provided with a recess 28 for accommodating the mechanical key 27. Thereby, the mechanical key 27 can be attached to the cover body 2 without increasing the number of parts.

<Other embodiments>
In addition, each said embodiment can also be implemented with the following forms which changed this suitably.
-In the said 1st and 2nd embodiment and its modification, although it was decided to provide the module part 3 with respect to the 2nd cover member 21, it replaced with this and is 3rd-5th implementation. Similarly to the embodiment, the module unit 3 may be provided integrally with the second cover member 21.

In the second embodiment, the antenna portions 8 and 9 are provided on the first cover members 20 and 50. However, instead, for example, the antenna portions 8 and 9 may be provided on the second cover members 21 and 51.
In the second embodiment, the step portions 33a and 33c are formed on the transmission antenna 33. For example, when the influence of the metal body of the mobile phones 1 and 4 on the transmission of the response signal is small, These step portions 33a and 33c may be omitted. That is, in this case, only the structure in which the arrangement of the coil antennas 31a to 31c is changed for each cover of the mobile phone may be employed. For example, when the influence of the metal body of the cellular phones 1 and 4 on the reception of the request signal is small, the positions of the coil antennas 31a to 31c on the boards 80 and 90 may be the same position. That is, in this case, only the structure in which the position of the stepped portion of the transmission antenna 33 is changed for each cover of the mobile phone may be employed.

  In the second to fifth embodiments, the cover body 2 is configured as a divided body composed of the first and second cover members 20 and 21, but instead of the first embodiment, the cover body 2 is configured as a divided body. As in the modification, the cover body 2 may be formed integrally.

  In the third embodiment, the mechanical key 7 is accommodated in the second cover member 21, but instead, for example, the mechanical key 7 may be accommodated in the first cover member 20.

  In the third embodiment, the protrusion 71 b of the mechanical key 7 is engaged with the through hole 21 d of the second cover member 21, thereby preventing the mechanical key 7 from falling off the recess 22. Such an uneven engagement structure can be omitted. In addition, although the grip portion 71a is formed at the end of the mechanical key 7, the grip portion 71a can be omitted. Even with such a configuration, the effect (8) according to the third embodiment can be obtained.

  In the third to fifth embodiments, the module unit 3 is provided integrally with the cover body 2, but instead, the module unit 3 is replaced with the module unit 3 in the same manner as in the first and second embodiments. The second cover member 21 may be detachable.

  In the fourth embodiment, the structure in which the front side portion and the back side portion of the button-type battery 36 are exposed is adopted, but instead, for example, only the front side portion is exposed, or You may employ | adopt the structure which exposes only the part of the back side. Even with such a structure, the exposed portion of the button-type battery 36 can be gripped, so battery replacement is facilitated.

  In the fourth embodiment, the battery cover 26 is formed on the first cover member 20. However, instead of this, for example, the button-type battery 36 and the module unit 3 are provided on the first cover member 20. In this case, the battery cover may be formed on the second cover member 21.

  In the fifth embodiment, the mechanical key 27 is formed on the first cover member 20, but instead, for example, a mechanical key may be formed on the second cover member 21.

In each of the above embodiments, the module part 3 is provided on the second cover member 21, but instead, for example, the module part 3 may be provided on the first cover member 20.
In each of the above-described embodiments, the mobile phone cover according to the present invention is applied to the cover of the thin plate-like mobile phones 1 and 4, but instead of this, an appropriate mobile phone such as a cover of a folding mobile phone is used. It can be applied to the cover of a telephone.

  In each of the above embodiments, the mobile phone cover according to the present invention is used in an electronic key system that authenticates an electronic key by exchanging a request signal and a response signal with an in-vehicle device. For example, the present invention can be used for an electronic key system that authenticates an electronic key through transponder communication. In this case, the in-vehicle device 6 is provided with an immobilizer that transmits driving radio waves. The module unit 3 is provided with a transponder that receives a driving radio wave transmitted from the immobilizer and obtains a driving power source to start up and transmits a radio signal including an ID code at the time of starting up. Even when the cellular phone cover according to the present invention is applied to such an electronic key system, it is possible to achieve effects equivalent to or equivalent to the various effects of the above embodiments.

  In each of the above embodiments, the mobile phone cover according to the present invention is used for an electronic key system of a vehicle. Alternatively, for example, an electronic key system for locking and unlocking an entrance door may be used. Good.

<Appendix>
Next, a technical idea that can be grasped from the above embodiment and its modifications will be additionally described.
(B) pre-Symbol antenna, an antenna for reception of a coil antenna, the cover body, said that the coil antenna is disposed in a manner separated from the metal body provided on the mobile phone A cover for a mobile phone. According to this configuration, it is possible to antenna provided integrally with the cover the body when an antenna for reception of a coil antenna, to avoid affecting the wireless communication by the metal body of the mobile phone, Radio signals can be received appropriately.

(B) pre-Symbol antenna, an antenna for transmission consisting of a loop antenna, in the loop antenna, perpendicular to the outer surface of the corresponding same metal body to the position of the provided metal body to the portable telephone A cover for a mobile phone, characterized in that a step portion protruding in a direction to be formed is formed. According to this configuration, when the antenna provided integrally with the cover body is a transmission antenna including a loop antenna, the outer surface of the metal body of the mobile phone is a conductor surface with respect to the step portion of the loop antenna. work. For this reason, when power is supplied to the loop antenna along with the transmission of the radio signal, a mirror image of the stepped portion is formed on the metal body of the mobile phone, so that the strength of the radio signal transmitted from the loop antenna is increased. Can do. Therefore, even in a situation where the transmission of the wireless signal is hindered by the metal body of the mobile phone, the wireless signal can be transmitted accurately.

When (c) the mechanical key before Symbol recess is the insertion direction of the direction to be inserted, on the mechanical key, together with the gripping portion projecting in a direction orthogonal to the insertion direction is formed, the mechanical key is A cover for a mobile phone, wherein the cover is housed in the recess in such a manner that the grip portion is exposed. According to this configuration, when the mechanical key is accommodated in the recess, the mechanical key can be taken out from the recess only by pressing the grip portion of the mechanical key, so that the mechanical key can be easily taken out.

(D) pre-Symbol The contact surface between the mechanical key and the recess, a cover for a mobile phone, wherein a concavo-convex engaging structure is provided. According to the same configuration, one of the two members constituting the cover body and the mechanical key are engaged with each other by the concave / convex engaging structure provided on the contact surface between the mechanical key and the concave portion. The mechanical key can be held in a state of being accommodated in the recess. For this reason, it becomes possible to prevent the mechanical key from falling off the recess.

(E) before SL cell is a button-type battery, wherein the one of the cover member, and wherein the module part is provided in a manner that exposes the positive and negative terminals of the button cells Cover for mobile phones. According to this configuration, since it becomes possible to take out the battery more easily, battery replacement is further facilitated.

  A, B ... Communication area, P1, P2 ... Terminal, T1, T2 ... Metal terminal, 1, 4 ... Mobile phone, 1a, 4a ... Metal body, 2, 5 ... Cover body, 2a ... Back protection part, 2b ... Recessed part DESCRIPTION OF SYMBOLS 3 ... Module part, 6 ... Vehicle equipment, 7 ... Mechanical key, 8, 9 ... Antenna part, 11 ... Touch panel, 12 ... Speaker, 13 ... Operation button, 20 ... 1st cover member, 20a, 21a ... Back surface protection Part, 20b, 21b, 21c, 51b ... contact surface, 21 ... second cover member, 21d ... through hole, 22, 24, 25, 28, 52 ... recess, 22a, 24a, 28a, 52a ... opening, 23, 53 ... Projection, 26 ... Battery cover, 27 ... Mechanical key, 30 ... Groove, 31 ... Reception antenna, 31a to 31c ... Coil antenna, 32 ... Reception circuit, 33 ... Transmission antenna, 33a, 33c ... Stage , 33b ... part, 34 ... transmission circuit, 35 ... control part, 35a ... memory, 36 ... button-type battery, 38, 39 ... terminal, 50 ... first cover member, 50a, 51a ... back protection part, 51 ... 2nd cover member, 71 ... grip part, 71a ... grip part, 71b ... projecting part, 72 ... key plate, 80, 90 ... substrate.

Claims (7)

A cover body covering the outer surface of the mobile phone;
A module part provided in the cover body and incorporating a functional part of the electronic key constituting the electronic key system ;
A cover for a mobile phone , wherein the module part is provided so as to be removable from the cover body . The module unit, the portion excluding the antenna of the functional components of the electronic key is incorporated in the cover body, the antenna cover for a mobile phone according to claim 1 comprising integrally provided. The cover for a mobile phone according to claim 1 or 2 , wherein the cover body is configured as a divided body including two cover members. One cover member of the two cover members constituting the cover body has an opening on the contact surface with the other cover member and accommodates the module portion inserted from the opening. The cellular phone cover according to claim 3 , wherein a recess is formed. One cover member of the two cover members constituting the cover body has a recess on the contact surface with the other cover member and accommodates a mechanical key inserted through the opening. The mobile phone cover according to claim 3 , wherein the mobile phone cover is formed. One cover member of the two cover members constituting the cover body is provided with the module portion in a manner that exposes a battery serving as an operation power source for the module portion, and the other cover member has The mobile phone cover according to claim 3 , wherein a battery cover for covering the battery exposed from the one cover member is formed. On one of the cover member of the two cover members constituting the cover body, together with the mechanical key is formed integrally in the form derived from the contact surface of the other side of the member, and the other cover The cellular phone cover according to claim 3 , wherein the member is formed with a recess for receiving the mechanical key.

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