JP6323276B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a portable terminal device.

  A portable terminal device of a type in which a grip portion is provided on the back surface of the main body portion in order to ensure operability in a gripped state is known. As such a portable terminal device, for example, wireless communication disclosed in Patent Document 1 below is known. A tag communication device is known. This wireless tag communication device includes a housing (main body portion) provided with a display portion on an upper surface, a grip portion provided with a trigger switch, and an antenna. The housing is provided with a vent hole for heat dissipation, the gripping portion is provided at the lower portion (back surface) of the housing, and the antenna is erected so as to be substantially perpendicular to the front surface portion of the housing. The wireless tag communication apparatus configured as described above secures a waterproof function and improves heat dissipation by assembling a breathable waterproof sheet to the heat radiating vent.

JP 2011-204072 A

  By the way, in the configuration in which the heat generating portion that generates heat by the operation according to the instruction from the main body portion is provided on the back surface of the main body portion like the above-described antenna with respect to the main body portion provided with the holding portion on the back surface, There is a possibility that a hand touching the heat generating part. For this reason, if an operator's hand holding the holding part touches the outer surface of the heat generating part that is relatively hot, the operator feels uncomfortable. In particular, if the back surface is made small in response to a demand for miniaturization of the apparatus, the space between the heat generating part and the gripping part cannot be secured sufficiently, and thus it is easy to give the operator a sense of discomfort when the heat generating part generates heat. There is.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to carry a portable device that can prevent a hand holding the grip from touching a heat generating portion provided on the back surface of the main body. It is to provide a terminal device.

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention includes a main body portion (12), a grip portion (14) assembled to the back surface (12b) of the main body portion, and the main body portion. And a heat generating part (16) having a heat generating component (30) that generates heat by operating in response to an instruction of the portable terminal device (10), wherein the heat generating part is separated from the grip part of the back surface. The protective wall (18) is disposed between the heat generating part and the gripping part on the back surface, and the main body part is non-transmitted with electromagnetic waves transmitted and received through the antenna part as a medium. Non-contact communication is performed with a contact communication medium, and the heat generating component is a non-contact communication module having the antenna unit, and is housed in a case that forms an outline of the heat generating unit. A space between the outer surface It edges so that is characterized Rukoto formed by connecting to the case.
In addition, the code | symbol in each said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.

  According to the first aspect of the present invention, the heat generating portion having a heat generating component that generates heat by operating in accordance with an instruction from the main body is assembled at a position away from the grip portion on the back surface of the main body. A protective wall is disposed on the back surface between the heat generating portion and the grip portion.

  As a result, even if the hand holding the gripping part directly touches the protective wall, it can be prevented from directly touching the heat generating part provided on the back surface of the main body part. Nor.

Furthermore , a non-contact communication module having an antenna unit is accommodated in a case that forms an outline of the heat generating unit as a heat generating component. Thereby, even if the heat generating part generates heat during non-contact communication, it is possible to prevent the hand holding the gripping part from directly touching the heat generating part.

In particular , the protective wall is formed by connecting an edge portion to the case so that a space is provided between the protective wall and the outer surface of the case. For this reason, not only the intensity | strength of a protective wall can be improved, but the heat from a heat generating part can be made difficult to be transmitted to a protective wall.

In the invention of claim 2 , since the opening for communicating the space with the outside air is formed in the protective wall, the inflow and the outflow of the outside air to the space through the opening easily occur. Thereby, since the heat dissipation of the air in space improves, it can suppress that the heat from a heat-emitting part is transmitted to a protective wall via the air in the said space.

In the invention of claim 3, a plurality of openings are formed in the protective wall, and some of the plurality of openings are formed at the end of the protective wall near the back surface, and at least some of the other openings are protective walls. Is formed at the end away from the back surface.

  In a state in which the gripping part is gripped and operated while looking at the surface of the main body part, the protective wall extends in the vertical direction, the end of the protective wall near the back surface is located on the upper side, and is separated from the back surface of the protective wall. The end is located on the lower side. In other words, a part of the openings is positioned above the other part of the openings. In this state, the air in the space heated by the heat from the heat generating portion flows upward, so that air (outside air) flowing into the space from the other part of the opening passes through the part of the opening. An outflow heat dissipation path is formed. Thereby, the heat dissipation of the air in the said space improves more, and it can suppress reliably that the heat from a heat-emitting part is transmitted to a protective wall via the air in the said space.

In the invention according to claim 4 , the non-contact communication module includes an RFID module unit having a heating element that is disposed on the grip side of the antenna unit and generates heat in non-contact communication in addition to the antenna unit, A shield case made of metal that covers at least a portion of the antenna portion and the shield case.

  For this reason, even if the RFID module part is arranged on the grip part side with respect to the antenna part, the heat generated by the heating element is easily transmitted to the antenna part through the shield case, and is difficult to be transmitted to the grip part side of the case. Become. Thereby, it can suppress that the heat | fever from an RFID module part is transmitted to a protective wall, aiming at size reduction of a non-contact communication module by arrange | positioning so that an antenna part and a shield case may touch.

In the invention of claim 5 , since the heat conducting member is disposed between the antenna portion and the RFID module portion, the heat generated by the heating element is more easily transmitted to the antenna portion. Thereby, it can further suppress that the heat | fever from an RFID module part is transmitted to a protective wall.

In the invention of claim 6 , since the heat conducting member is disposed so as to include a region where the heat generating element is projected onto the RFID module portion, the heat radiation effect on the heat generating element via the heat conducting member is enhanced. Thereby, it can suppress further that the heat | fever from an RFID module part is transmitted to a protective wall.

In the seventh aspect of the present invention, since another heat conducting member is disposed between the antenna portion and the inner surface of the case that is different from the grip portion side, heat is transmitted to the grip portion side of the case. While suppressing this, the heat dissipation effect via the antenna portion can be enhanced. Thereby, it can suppress further that the heat | fever from an RFID module part is transmitted to a protective wall.

It is a figure which shows the structure outline | summary of the portable terminal device which concerns on 1st Embodiment. It is an expanded sectional view which expands and shows a radio communications department. It is a block diagram which illustrates the electric constitution of a portable terminal device. It is the top view which looked at the non-contact communication module from the RFID module part side. It is explanatory drawing explaining the thermal radiation path | route using an antenna part. It is sectional drawing which shows the principal part of the portable terminal device in 2nd Embodiment. It is sectional drawing which shows the principal part of the portable terminal device in 3rd Embodiment.

[First Embodiment]
Hereinafter, a first embodiment in which a mobile terminal device according to the present invention is embodied will be described with reference to the drawings. 1A and 1B are diagrams showing an outline of the configuration of a mobile terminal device 10 according to the first embodiment. FIG. 1A is a front view and FIG. 1B is a side view. FIG. 2 is an enlarged cross-sectional view showing the wireless communication unit 16 in an enlarged manner.

  A portable terminal device 10 shown in FIGS. 1A and 1B is configured as an information reading device that is carried by a user and reads predetermined information in various places, and transmits and receives radio waves transmitted and received via an antenna unit. In addition to the function as a wireless tag reader that reads information stored in an RFID tag (non-contact communication medium) 50 as an intermediary, it functions as an information code reader that optically reads information codes such as barcodes and two-dimensional codes. In addition, it has a configuration in which reading can be performed in two ways.

  As shown in FIGS. 1A and 1B, the mobile terminal device 10 has an outer case formed by a casing 11 formed of a synthetic resin material such as ABS resin. The mobile terminal device 10 is configured to include a wireless communication unit 16 for increasing the output of transmission radio waves in addition to the main body unit 12 and the grip unit 14. On the front surface 12a of the main body 12, a part of the key operation unit 25 such as function keys and numeric keys operated when inputting predetermined information, a display unit 24 for displaying predetermined information, and the like are arranged. ing. Further, a reading port 13 for taking in reflected light from the information code is provided at the end of the main body 12 on the reading side (left side in FIG. 1).

  The grip portion 14 is assembled in the vicinity of the center with respect to the back surface 12b of the main body portion 12, and when reading processing for the RFID tag 50 or the like is started at a portion near the back surface 12b and facing the wireless communication unit 16. A trigger switch 15 that is operated by the above is disposed. Therefore, the trigger switch 15 can be easily pressed with the index finger or the like of the hand holding the holding unit 14 while looking at the display unit 24 of the main body unit 12.

  The wireless communication unit 16 is assembled on the reading side of the back surface 12 b of the main body unit 12 so as to be positioned below the reading port 13. As shown in FIG. 2, the wireless communication unit 16 is configured such that a non-contact communication module 30 described later is accommodated in a case 17 constituting a part of the housing 11. The wireless communication unit 16 may correspond to an example of a “heat generating unit”.

  A protective wall 18 is provided on the gripping portion side of the case 17 constituting the outline of the wireless communication unit 16. The protective wall 18 is disposed so as to face the back surface 12 b of the main body 12 via the space S with respect to the gripping portion side outer surface 17 a of the case 17. In particular, in the present embodiment, the protective wall 18 has an edge portion 18a connected to the case 17 so that the space S is a sealed space by the back surface 12b of the main body portion 12 when assembled. It is molded integrally with.

  Thus, since the protective wall 18 is provided between the wireless communication unit 16 and the gripping part 14, the finger of the hand gripping the gripping part 14 can directly touch the gripping part side outer surface 17 a of the wireless communication part 16. Is prevented.

  Next, the electrical configuration of the mobile terminal device 10 will be described with reference to FIGS. 3A is a block diagram illustrating the electrical configuration of the mobile terminal device 10, and FIG. 3B is a block diagram illustrating the electrical configuration of the RFID module unit 32. FIG. 4C is a block diagram illustrating an electrical configuration of the information code reading unit 40.

  The main body unit 12 includes a control unit 21 that controls the entire mobile terminal device 10 and is accommodated in the housing 11. The control unit 21 is composed mainly of a microcomputer, has a CPU, a system bus, an input / output interface, and the like, and constitutes an information processing apparatus together with the memory 22. Further, as shown in FIG. 3A, an LED 23, a display unit 24, a key operation unit 25, a vibrator 26, a buzzer 27, an external interface 28, and the like are connected to the control unit 21.

  The key operation unit 25 includes a trigger switch 15 and a numeric keypad, and is configured to give an operation signal corresponding to the operation to the control unit 21. The control unit 21 receives the operation signal and receives an operation signal. Perform actions according to the content. Further, the LED 23, the display unit 24, the vibrator 26 and the buzzer 27 are configured to be controlled by the control unit 21, and each operate in response to a command from the control unit 21. The external interface 28 is configured as an interface for performing data communication with an external device or the like, and is configured to perform communication processing in cooperation with the control unit 21. In addition, a power supply unit 29 is provided in the housing 11, and power is supplied to the control unit 21 and various electrical components by the power supply unit 29 and the battery 29 a.

Further, the RFID module unit 32 and the information code reading unit 40 are connected to the control unit 21.
The RFID module unit 32 performs electromagnetic wave communication with the RFID tag 50 in cooperation with the antenna unit 31 and the control unit 21, reads data stored in the RFID tag 50, or writes data to the RFID tag 50. It functions to perform. The RFID module unit 32 is configured as a circuit board on which circuit elements and the like for performing transmission using a known radio wave system are mounted. As schematically shown in FIG. A receiving circuit 34, a matching circuit 35, and the like are included.

  The transmission circuit 33 includes a carrier oscillator, an encoding unit, an amplifier, a transmission unit filter, a modulation unit, and the like, and is configured to output a carrier (carrier wave) having a predetermined frequency from the carrier oscillator. The encoding unit is connected to the control unit 21, encodes transmission data output from the control unit 21, and outputs the transmission data to the modulation unit. The modulation unit is a part to which the carrier (carrier wave) from the carrier oscillator and the transmission data from the encoding unit are input. The carrier (carrier wave) output from the carrier oscillator is encoded at the time of command transmission to the communication target. A modulated signal that is ASK (Amplitude Shift Keying) modulated by the encoded transmission code (modulated signal) output from the encoding unit is generated and output to the amplifier. The amplifier amplifies the input signal (the modulated signal modulated by the modulation unit) with a predetermined gain, and outputs the amplified signal to the transmission unit filter. The transmission unit filter filters the amplified signal from the amplifier. The transmission signal is output to the antenna unit 31 via the matching circuit 35. When a transmission signal is output to the antenna unit 31 in this manner, the transmission signal is radiated to the outside from the antenna unit 31 as a transmission radio wave.

  On the other hand, the response signal received by the antenna unit 31 is input to the receiving circuit 34 via the matching circuit 35. The reception circuit 34 includes a reception unit filter, an amplifier, a demodulation unit, a binarization processing unit, a decoding unit, and the like, and the response signal received via the antenna unit 31 is filtered by the reception unit filter. Thereafter, the signal is amplified by an amplifier, and the amplified signal is demodulated by a demodulator. The demodulated signal waveform is binarized by the binarization processing unit, decoded by the decoding unit, and then the decoded signal is output to the control unit 21 as received data.

  The information code reading unit 40 functions to optically read the information code. As shown in FIG. 3C, the information code reading unit 40 includes a light receiving sensor 43 including a CCD area sensor, an imaging lens 42, a plurality of LEDs, It has a configuration including an illumination unit 41 composed of a lens and the like, and functions to read an information code C (bar code or two-dimensional code) attached to a reading target R in cooperation with the control unit 21. To do.

  When reading is performed by the information code reading unit 40, first, the illumination light Lf is emitted from the illumination unit 41 that has been instructed by the control unit 21, and the illumination light Lf is irradiated to the reading object R through the reading port 13. The The reflected light Lr reflected by the information code C from the illumination light Lf is taken into the apparatus through the reading port 13, and is received by the light receiving sensor 43 through the imaging lens 42. The imaging lens 42 disposed between the reading port 13 and the light receiving sensor 43 is configured to form an image of the information code C on the light receiving sensor 43, and the light receiving sensor 43 is an image of the information code C. The light reception signal corresponding to the is output. The received light signal output from the light receiving sensor 43 is stored as image data in the memory 22 (FIG. 3A) and used for decoding processing for acquiring information included in the information code C. The information code reading unit 40 is provided with an amplifying circuit for amplifying the signal from the light receiving sensor 43 and an AD converting circuit for converting the amplified signal into a digital signal. Is omitted.

  Next, the configuration of the non-contact communication module 30 will be described in detail with reference to FIG. 2 and FIG. FIG. 4 is a plan view of the non-contact communication module 30 as viewed from the RFID module section 32 side. In FIG. 4, illustration of the shield case 36 is omitted for convenience.

  The mobile terminal device 10 is configured such that the wireless communication unit 16 includes a non-contact communication module 30 in order to realize a function as a wireless tag reader. As shown in FIG. 2, the non-contact communication module 30 includes a metal shield case 36 and a heat conducting member 37 in addition to the antenna unit 31 and the RFID module unit 32.

  The shield case 36 is a member for protecting the RFID module part 32 and assembling it to the antenna part 31, and is formed by bending a metal plate so as to cover at least a part of the RFID module part 32. The shield case 36 is in contact with the antenna portion 31 by being fixed to the back surface 31 a of the antenna portion 31 using solder or the like. Thereby, the RFID module part 32 will be arrange | positioned with respect to the antenna part 31 at the holding part 14 side (refer FIG. 2). The shield case 36 is supported at the outer edge in contact with a rib or the like provided on the inner surface of the case 17 and arranged so that the contact area with the case 17 is as small as possible.

  The heat conducting member 37 is, for example, a sheet-like member with improved thermal conductivity, and is provided between the back surface 31 a of the antenna unit 31 and the back surface 32 a of the RFID module unit 32 in order to enhance the heat dissipation effect to the antenna unit 31. Arranged between. Thereby, the RFID module part 32 is supported so as to be sandwiched between the shield case 36 and the heat conducting member 37, and is positioned at a predetermined position with respect to the back surface 31 a of the antenna part 31.

  In particular, in the present embodiment, when wireless communication processing for wirelessly communicating with the RFID tag 50 is executed by the control unit 21, according to an instruction from the control unit 21 among circuit elements included in the RFID module unit 32. It is necessary to enhance the heat dissipation effect for circuit elements that generate heat by operation (hereinafter also referred to as heat generating elements 32b). For this reason, in order to enhance the heat dissipation effect for each heat generating element 32b, the heat conducting member 37 has a region where each heat generating element 32b is projected onto the back surface 32a of the RFID module section 32, as can be seen from FIGS. It is arranged to include.

Next, in the mobile terminal device 10 configured as described above, a heat dissipation path of heat generated in the RFID module unit 32 during wireless communication will be described with reference to FIG. FIG. 5 is an explanatory diagram illustrating a heat dissipation path using the antenna unit 31.
When the wireless communication process is executed by the control unit 21, the heating elements 32b of the RFID module unit 32 generate heat as described above.

  Thus, the heat generated in each heating element 32b uses both the heat dissipation path P1 transmitted to the antenna section 31 via the shield case 36 and the heat dissipation path P2 transmitted to the antenna section 31 via the heat conducting member 37. And the heat dissipation is promoted. For this reason, the heat generated in each heating element 32b is not easily transmitted to the gripping portion side outer surface 17a of the case 17.

  In the present embodiment, since the antenna unit 31 is enlarged in order to increase the output power of the transmission radio wave, the heat transmitted to the antenna unit 31 through the heat radiation paths P1 and P2 is easily diffused, so that the RFID module unit The temperature rise of 32 is suitably suppressed. Thus, by spreading | diffusion of the heat | fever of the RFID module part 32, the local temperature rise of the radio | wireless communication part 16 is also suppressed, and it suppresses that the heat from the holding part side outer surface 17a is transmitted to the protective wall 18. FIG. be able to.

  As described above, in the mobile terminal device 10 according to the present embodiment, the wireless communication unit 16 including the non-contact communication module 30 that generates heat by operating in accordance with an instruction from the control unit 21 of the main body unit 12 is the main body. The back surface 12 b of the part 12 is assembled at a position away from the gripping part 14. A protective wall 18 is disposed between the wireless communication unit 16 and the grip 14 on the back surface 12 b of the main body 12.

  Thereby, even if the hand holding the grip part 14 directly touches the protective wall 18, it can be prevented from directly touching the wireless communication part 16 provided on the back surface 12 b of the main body part 12. There is no sense of incongruity by touching.

  The non-contact communication module 30 having the antenna unit 31 is housed in a case 17 that constitutes the outline of the wireless communication unit 16 as a heat generating component. Thereby, even if the wireless communication unit 16 generates heat during non-contact communication, it is possible to prevent the hand holding the grip 14 from directly touching the wireless communication unit 16.

  Further, the protective wall 18 is formed by connecting the edge portion 18 a to the case 17 so as to interpose a space S between the protective wall 18 and the gripping portion side outer surface 17 a of the case 17. For this reason, not only the strength of the protective wall 18 can be improved, but also the heat from the wireless communication unit 16 can be made difficult to be transmitted to the protective wall 18.

  In particular, the non-contact communication module 30 includes, in addition to the antenna unit 31, an RFID module unit 32 having a heating element 32b that is disposed on the grip 14 side with respect to the antenna unit 31 and generates heat in non-contact communication, and an RFID module unit. A shield case 36 made of metal that covers at least a part of the antenna 32, and the antenna unit 31 and the shield case 36 are arranged so as to be in contact with each other.

  For this reason, even if the RFID module part 32 is arranged on the grip part 14 side with respect to the antenna part 31, the heat generated in the heating element 32 b is easily transmitted to the antenna part 31 via the shield case 36. It becomes difficult to be transmitted to the grip part 14 side. Thereby, it can suppress that the heat | fever from the RFID module part 32 is transmitted to the protective wall 18, aiming at size reduction of the non-contact communication module 30 by arrange | positioning so that the antenna part 31 and the shield case 36 may be contact | connected. .

  Further, since the heat conducting member 37 is disposed between the antenna unit 31 and the RFID module unit 32, the heat generated in the heating element 32b is more easily transmitted to the antenna unit 31. Thereby, it can further suppress that the heat from the RFID module part 32 is transmitted to the protective wall 18.

  In particular, since the heat conducting member 37 is disposed so as to include a region where the heat generating element 32b is projected onto the back surface 32a of the RFID module part 32, the heat dissipating effect through the heat conducting member 37 on the heat generating element 32b is obtained. Enhanced. Thereby, it can further suppress that the heat from the RFID module part 32 is transmitted to the protective wall 18.

[Second Embodiment]
Next, a mobile terminal device according to a second embodiment of the present invention will be described with reference to FIG. FIG. 6 is a cross-sectional view showing the main part of the mobile terminal device in the second embodiment.
The second embodiment is mainly different from the first embodiment in that an opening is provided in the protective wall 18. For this reason, substantially the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 6, in the present embodiment, the protective wall 18 is formed with two openings for communicating the space S with the outside air. One of the two openings 19a is formed at the end of the protective wall 18 near the back surface 12b of the main body 12, and the other opening 19b is formed at the end of the protective wall 18 away from the back surface 12b. Has been.

  Thus, since the openings 19a and 19b for communicating the space S to the outside air are formed in the protective wall 18, the inflow and outflow of the outside air to the space S via the openings 19a and 19b are likely to occur. Become. Thereby, since the heat dissipation of the air in space S improves, it can suppress that the heat from the radio | wireless communication part 16 is transmitted to the protective wall 18 via the air in the said space S. FIG.

In particular, one opening 19a is formed in the protective wall 18 at an end portion close to the back surface 12b, and the other opening 19b is formed at an end portion away from the back surface 12b.
In a state where the gripping portion 14 is gripped and operated while looking at the surface 12a of the main body portion 12, the protective wall 18 extends in the vertical direction, and the end portion of the protective wall 18 near the back surface 12b is located on the upper side. 18 is located on the lower side away from the back surface 12b (see FIG. 6). That is, one opening 19a is positioned above the other opening 19b. In this state, since the air in the space S heated by the heat from the wireless communication unit 16 flows upward, the air (outside air) flowing into the space S from the other opening 19b passes through the one opening 19a. Thus, a heat dissipation path that flows out through the air is formed. Thereby, the heat dissipation of the air in the said space S improves more, and it can suppress reliably that the heat from the radio | wireless communication part 16 is transmitted to the protective wall 18 via the air in the said space S.

The protective wall is not limited to having two openings, but may be one or three or more.
For example, a plurality of openings are formed in the protective wall 18, a part of the plurality of openings is formed at an end portion of the protective wall 18 near the back surface 12 b, and at least another part of the openings is formed in the protective wall 18. Of these, it may be formed at the end away from the back surface 12b. Even in this case, a heat dissipation path is formed in which air (outside air) flowing into the space S from the other part of the openings flows out through the part of the openings. Thereby, the heat dissipation of the air in the said space S improves more, and it can suppress reliably that the heat from the radio | wireless communication part 16 is transmitted to the protective wall 18 via the air in the said space S.

  Further, the protective wall 18 is arranged so as to be assembled to the back surface 12b of the main body 12 so as to face the gripping portion side outer surface 17a of the case 17 via the space S without being connected to the case 17. May be.

[Third Embodiment]
Next, a mobile terminal device according to a third embodiment of the present invention will be described with reference to FIG. In addition, FIG. 7 is sectional drawing which shows the principal part of the portable terminal device in 3rd Embodiment.
The third embodiment is mainly different from the first embodiment in that another heat conducting member is provided. For this reason, substantially the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 7, in the present embodiment, in addition to the heat conducting member 37, another heat conducting member 38 is provided as a member for enhancing the heat dissipation effect via the antenna portion 31. The other heat conducting member 38 is configured as a sheet-like member having improved heat conductivity like the heat conducting member 37, and is formed on both the bottom surface 17 b of the case 17 and the lower edge portion of the antenna portion 31. It arrange | positions so that it may contact (refer FIG. 7).

  As a result, the heat transmitted to the antenna unit 31 is promoted by using the heat dissipation path P3 transmitted to the bottom surface 17b of the case 17 via the other heat conducting member 38 (see FIG. 7). On the other hand, since the other heat conducting member 38 is located away from the gripping portion side outer surface 17a, even when heat is radiated to the case 17, heat through the other heat conducting member 38 is hardly transmitted to the gripping portion side outer surface 17a. . Thereby, it can suppress further that the heat | fever from the RFID module part 32 is transmitted to the protective wall 18, suppressing the heat | fever via the antenna part 31 being transmitted to the holding part side outer surface 17a of the case 17. FIG.

  In particular, after the other heat conducting member 38 is attached to a predetermined position on the bottom surface 17 b of the case 17, the non-contact communication module 30 is inserted into the case 17, so that the other heat conducting member 38 is attached to the antenna unit 31. Since the contact is made so as to be pressed, the other heat conducting member 38 and the antenna part 31 can be easily and reliably brought into contact with each other.

  The other heat conducting member 38 is not limited to be disposed on the bottom surface 17 b of the case 17, and may be configured to contact the side edge of the antenna unit 31 by being disposed on the inner surface of the case 17. Good. Further, the other heat conducting member 38 may be arranged on both the bottom surface 17 b and the inner side surface of the case 17 so as to contact the edge portion of the antenna portion 31.

  The characteristic configuration of the present embodiment in which the other heat conducting member 38 is disposed between the inner surface of the case 17 and the edge of the antenna unit 31 may be applied to other embodiments.

[Other Embodiments]
In addition, this invention is not limited to said each embodiment, For example, you may actualize as follows.
(1) By disposing the heat conducting member 37 between the back surface 31a of the antenna unit 31 and the back surface 32a of the RFID module unit 32, the heat radiation effect to the antenna unit 31 is not enhanced, but the back surface 31a and the back surfaces 32a May be directly contacted at least in part to enhance the heat dissipation effect to the antenna unit 31.

(2) The present invention is applied to a portable terminal device having a function as an information code reader that optically reads an information code in addition to a function as a wireless tag reader that reads an RFID tag (non-contact communication medium) 50. Not limited to this, the present invention may be applied to a portable terminal device having only a function as a wireless tag reader, or may be applied to a portable terminal device having another function.

(3) Further, the present invention can be applied to a mobile terminal device having a function different from the function as a wireless tag reader. In this case, the above effect can also be obtained by disposing a protective wall between the heat generating part having a heat generating component that generates heat by operating in accordance with an instruction from the main body part and the grip part.

DESCRIPTION OF SYMBOLS 10 ... Portable terminal device 12 ... Main-body part 14 ... Gripping part 16 ... Wireless communication part (heat generating part)
17 ... Case 18 ... Protection walls 19a, 19b ... Opening 30 ... Non-contact communication module (heat generating component)
DESCRIPTION OF SYMBOLS 31 ... Antenna part 32 ... RFID module part 32b ... Heat generating element 36 ... Shield case 37 ... Heat conduction member 38 ... Other heat conduction member

Claims (7)

The main body,
A gripping part assembled to the back surface of the main body part;
A heat generating part having a heat generating part that generates heat by operating in accordance with an instruction from the main body part;
A portable terminal device comprising:
The heat generating part is assembled at a position away from the grip part on the back surface,
On the back surface, a protective wall is disposed between the heat generating portion and the grip portion ,
The main body performs non-contact communication with a non-contact communication medium through an electromagnetic wave transmitted / received via the antenna unit,
The heat generating component is a non-contact communication module having the antenna unit, and is housed in a case that constitutes an outline of the heat generating unit,
The protective wall, the portable terminal device edge as through the space, characterized in Rukoto formed by connecting to the casing between an outer surface of the casing.   The portable terminal device according to claim 1, wherein an opening for communicating the space with outside air is formed in the protective wall.   A plurality of the openings are formed in the protective wall, a part of the plurality of openings is formed at an end of the protective wall near the back surface, and at least another part of the openings is formed in the protective wall. The mobile terminal device according to claim 2, wherein the mobile terminal device is formed at an end away from the back surface. In addition to the antenna unit, the non-contact communication module includes:
An RFID module part having a heating element that is arranged on the grip part side with respect to the antenna part and generates heat in the non-contact communication;
A metal shield case covering at least a part of the RFID module part;
With
The mobile terminal apparatus according to claim 1, wherein the antenna unit and the shield case are disposed so as to contact each other.   The portable terminal device according to claim 4, wherein a heat conduction member is disposed between the antenna unit and the RFID module unit.   The portable terminal device according to claim 5, wherein the heat conducting member is disposed so as to include a region where the heating element is projected onto the RFID module unit.   The portable terminal device according to claim 5 or 6, wherein another heat conductive member is disposed between a surface of the inner surface of the case different from the grip portion side and the antenna portion.

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