JP2006067524A - Electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus in which a degree of freedom in layout inside a terminal is improved even if the terminal comprises a shield for shielding a high frequency circuit. <P>SOLUTION: The electronic apparatus is provided with a circuit board 31 including a high frequency circuit 61, a shield case 62 for shielding the high frequency circuit 61, and a microphone 63 which includes an electrode section 63b on one side and a sound collecting section 63a on the other hand, and which is disposed on a side where the high frequency circuit 61 is provided, on the circuit board 31. The shield case 62 is provided with an opening 81 narrower than the microphone 63 when watching the electrode side 63b from the side of the sound collecting section 63a, and the microphone 63 is fixed in the opening 81 while being held between the shield case 62 disposed on the side of the sound collecting section 63a and the circuit board 31 disposed on the side of the electrode 63a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic device such as a mobile phone, and more particularly to an electronic device including a shield body that shields a high-frequency circuit.

  In electronic devices such as mobile phones, component layout is important for downsizing. Further, such an electronic device is provided with a high frequency circuit for generating a radio wave of a predetermined frequency and a shield body for blocking unnecessary radio waves from the high frequency circuit. The shield body is a relatively large component, and the arrangement of the shield body is important for downsizing of electronic equipment.

As a technique using this shield body for terminal miniaturization, there is a technique in which a shield case is also used as a battery reinforcing material (see Patent Document 1).
JP 2002-261894 A

  However, Patent Document 1 discloses a technique for using a shield body as a reinforcing material and reducing the size of the space of the reinforcing material, but discloses a technique for using the shield body for the layout of other components. It has not been.

  An object of the present invention is to provide an electronic device that improves the degree of freedom of layout inside the device even if it includes a shield body that shields a high-frequency circuit.

  The electronic device of the present invention includes a substrate having a high-frequency circuit, a shield body that shields the high-frequency circuit, an electrode portion on one side, and a sound collecting portion or a sound emitting portion on the other side, and the high-frequency circuit on the substrate is provided. An electrical / acoustic conversion means disposed on the surface of the electrode, the electrical / acoustic conversion when the electrode body side is viewed from the sound collection unit or the sound emission unit side of the shield body. A shield body opening having a width smaller than the width of the means is provided, and the electrical / acoustic conversion means includes the shield body arranged on the sound collecting part or the sound emitting part side, and the electrode arranged on the electrode side. It is sandwiched between substrates and fixed to the shield body opening.

  Preferably, the shield body includes a wall portion surrounding the electrical / acoustic conversion means, and a screw boss provided adjacent to the wall portion, and a screw penetrating the substrate is fitted into the screw boss, The substrate and the shield body are fixed to each other.

  Preferably, the shield body is provided with a holder into which the electric / acoustic conversion means is fitted, and the electrode portion is located at a center position and a predetermined distance from the center position when viewed from the substrate. The substrate has first and second contacts respectively, and the substrate has a third contact at the center of the position facing the holder, the third contact as the center, and the predetermined distance as a radius. Each has a fourth contact on the circumference.

  Preferably, a flexible printed wiring board in which a pressing switch is arranged is provided on the opposite side of the shield body from the substrate, and the wiring board is provided at a position facing the shield body opening. Is provided.

  Preferably, the pressure switch is disposed on the pressure switch and is capable of transmitting light, and a plurality of light emitting elements disposed on the wiring board. The pressure switch and the pressure portion are arranged in at least two rows. A plurality of the light-emitting elements are arranged between the two rows and at least every other switch between the two continuous switches along the row, The shield body opening is provided at any position where the light emitting element is not arranged.

  Preferably, a housing for accommodating the substrate, the shield body and the wiring board so as to be sandwiched between an upper case disposed on the wiring board side and a lower case disposed on the substrate side, and disposed on the wiring board. A key sheet that has a pressing part that transmits light on the pressing switch and transmits light to the pressing part, and a light emitting element that is disposed between the wiring board and the key sheet, and The key sheet is provided with a key sheet opening at a position on the wiring board opening. The upper case has an upper case opening that opens on the key sheet opening and an edge of the upper case opening. And a wall portion that extends in a cylindrical shape from the portion to the inside of the housing and is inserted into the key sheet opening.

  Preferably, for the conduction of the wiring board, provided on a board-side connection portion disposed between the substrate and the shield body, and a tongue piece formed at an end of the wiring board, A wiring board side connection portion connected to the board side connection portion by folding back the tongue piece.

  Preferably, the electronic component is controlled via the wiring board, connected to a tongue piece formed at an end of the wiring board, and the high-frequency circuit of the substrate is provided by folding the tongue piece. Electronic components arranged on the back side of the side.

  Preferably, a housing for housing the substrate and the shield body, a power supply terminal provided at an end of the substrate opposite to the shield body, and a side of the substrate on which the power supply terminal is provided are surfaces. An antenna element which is formed in a curved surface extending so as to face from the direction to the outer side of the shield body, is disposed inside the housing outside the shield body, and is fed from the feed terminal.

  Preferably, a housing for accommodating the substrate and the shield body so as to be sandwiched between an upper case and a lower case is provided, and the upper case or the lower case is provided with a screw for fastening the upper case and the lower case to each other. A screw boss is provided, and the substrate and the shield case are provided with a hole or a notch into which the screw boss is fitted.

  According to the electronic device of the present invention, the degree of freedom of layout inside the device is improved.

  1 and 2 are external perspective views showing an embodiment of a mobile phone as a wireless communication terminal of the present invention. FIG. 1 shows an open state, and FIG. 2 shows a closed state.

  The mobile phone 1 includes a first housing (first housing) 2 and a second housing (second housing) 3, and includes an end 2 a of the first housing 2, and a second housing 3. By connecting the end portion 3a to the hinge portion 4 so as to be rotatable, the end portion 3a can be opened and closed.

  The first housing 2 and the second housing 3 include front side cases 2c and 3c on the side (front side) facing each other in the closed state and back side cases 2d and 3d on the back side. These front side and back side cases 2c, 3c, 2d, and 3d are formed so that their contours substantially coincide with each other when viewed from the other casing side from the one casing side in the closed state. The positions of the end portions 2b and 3b on the opposite side (opening and closing side) of the housing 2 and the second housing 3 are also coincident with each other in the closed state.

  The first housing 2 includes an operation unit 11 on the front surface. Various buttons (pressing parts) for operating the cellular phone 1 such as a numeric keypad 11a are arranged on the operation part 11. Further, the operation unit 11 is provided with an opening 12 for collecting sound in the arrangement area of the numeric keypad 11a. The opening 12 may be provided with a protective film for the purpose of preventing dust from entering the first housing 2.

  The second housing 3 includes a main display unit (first display unit) 21 that displays an image on the front surface and a sub display unit (second display unit) 22 that displays an image on the back surface. It is provided along. The opening window of the back side case 3d for exposing the sub display part 22 is formed in a circular shape. The main display unit 21 and the sub display unit 22 are configured by, for example, a transmissive or reflective liquid crystal display. Other devices such as organic EL may be used.

  A push button (pressing member) 23 for controlling the operation of the sub display unit 22 is provided on the back surface of the second housing 3. The push button 23 is made of, for example, resin or hard rubber, and is arranged to be movable in the vertical direction with respect to the arrangement surface of the sub display unit 22 of the back side case 3d.

  3 and 4 are a perspective view and a plan view, respectively, showing the internal configuration of the mobile phone 1 in a closed state. 3 and 4 are shown with some components omitted.

  Inside the first housing 2, a circuit board 31 on which various circuits such as a high-frequency circuit are arranged, and an antenna unit 32 for transmitting and receiving radio waves are provided. The antenna unit 32 is provided at the end of the circuit board 31 and is located inside the end 2 b of the first housing 2.

  Inside the second housing 3, a main display unit holder 41 that holds the periphery and back surface of the main display unit 21, and a back surface of the main display unit holder 41 are provided. The main display unit 21 and the main display unit holder A main display frame 42 that reinforces 41 with structural strength and a sub display holder 51 that holds the periphery and back of the sub display 22 are provided. For the main display unit holder 41 and the sub display holder 51, for example, non-conductive synthetic resin is used, and for the main display unit frame 42, for example, metal is used. The main display unit holder 41 and the main display unit frame 42 constitute a base on which the back surface of the first display unit abuts.

  As shown in FIG. 4, the main display unit 21, the main display unit holder 41, and the main display unit frame 42 are provided at positions that do not overlap the antenna unit 32 in the closed state. The sub display unit 22 and the sub display unit holder 51 are provided at positions where the end portions 22a and 51a on the open / close side overlap with the end portion 32a on the housing connection side of the antenna unit 32 in the closed state. The sub display holder 51 holds the sub display unit 22 even at a position overlapping the antenna unit 32.

  The sub display unit 22 and the sub display holder 51 have chamfered end portions 22a and 51a on the open / close side as viewed from the back side of the second housing, while the antenna unit 32 is on the open / close side (viewed from the back side). An end portion 32b (facing the outside of the first housing) is formed in an arc shape surrounding the end portions 22a and 51a of the sub display portion 22 and the sub display portion holder 51. Details of the antenna unit will be described later.

  A tongue piece 51b that protrudes toward the case connection side is provided on the case connection side of the sub display unit holder 51, and on the tongue piece 51b (on the back side of the second case 3), A drive unit 52 for performing predetermined control such as energization control and a press switch 53 connected to the drive unit 52 and opening / closing a contact in accordance with a pressing operation are provided. The drive unit 52 is configured by an IC, for example. A push button 23 is disposed on the push switch 53, and the push switch 53 is pushed by a push operation of the push button 23.

  FIG. 5 is an exploded perspective view showing a part of the internal configuration of the second housing 3. As shown in FIG. 5, an insulating sheet 43 and a circuit board 44 for performing predetermined control such as energization control of the main display unit 21 are provided on the back surface of the main display unit frame 42. The insulating sheet 43 and the circuit board 44 are provided with cutout portions 43a and 44a on the opening and closing side, and the sub display portion holder 51 has a main display on the back half or more through a space formed by the cutout. It arrange | positions so that the back surface of the part frame 42 may be contact | abutted. In addition, the said back surfaces which contact | abut may be joined by joining members, such as a double-sided tape, and may not be joined.

  The main display frame 42 is provided with a convex portion 42 a at a side position where the sub display unit holder 51 abuts, and the convex portion 42 a contacts the circuit board 44 through the hole 43 b of the insulating sheet 43. The circuit board 44 is electrically connected.

  6 and 7 are exploded perspective views showing a part of the configuration inside the first housing 2. In FIG. 6, the left side of the drawing is the connection side of the first housing 2, and the upper side of the drawing is the back side of the first housing 2. In FIG.

  Various circuits such as the high-frequency circuit 61 are arranged on the front side (the lower side of the paper) of the circuit board 31, and a shield case (shield) for blocking electromagnetic waves emitted from each circuit or entering from the outside. Body) 62 is put on. Further, a flexible wiring board 71 is disposed on the shield case 62.

  The shield case 62 holds a plate portion 62 a, a partition wall 62 b provided around and inside the plate portion and partitioning the plate portion, and a microphone (electrical / acoustic conversion means; hereinafter simply referred to as “microphone”) 63. A microphone holder 62c for the purpose and a screw boss 62d provided adjacent to the microphone holder 62c are provided.

  The circuit board 31 and the shield case 62 are fixed by screwing a screw 500 from the back side of the circuit board 31 to the screw boss 62d through the hole 31a. Further, the front side case 2c and the back side case 2d are fixed by screwing screws 501 penetrating the back side case 2d into screw bosses 2e provided on the back side of the front side case 2c. The circuit board 31 and the shield case 62 are provided with notches 31b and 62e into which the screw bosses 2e are fitted. The circuit board 31 and the shield case 62 fix the front side case 2c and the back side case 2d. Are also fixed to each other. The shield case 62 is made of resin, and the surface thereof is plated, so that it has conductivity. The shield case 62 is fixed to the ground line of the circuit board 31 in a conductive state.

  8A is a view of the microphone holder 62c and the microphone 63 viewed from the front side of the first housing 2 (the lower side in FIG. 6), and FIG. 8B is the back side of the first housing 2. FIG. FIG. 8C is a view of the microphone holder 62 c and the microphone 63 as viewed from above, and FIG. 8C is a view of the position facing the microphone holder portion 62 c of the circuit board 31.

  The microphone 63 is configured in a columnar shape having a sound collecting portion 63a and an electrode portion 63b on the end surfaces. On the other hand, the microphone holder 62c has a wall portion 62h formed in a cylindrical shape having a size capable of receiving the microphone 63. The wall 62h is continuous with the partition wall 62b, and the thickness and height thereof are substantially the same as those of the partition wall 62b (see FIG. 6). The partition wall 62b is provided to isolate the circuits on the circuit board 31 from each other or to reinforce the structural strength of the shield case 62.

  The microphone 63 is fitted with a packing 505 formed of an elastic member such as rubber, and is then fitted into the microphone holder 62c from the sound collecting portion 63a side, and is fixed to the microphone holder 62c. Further, as described above, the circuit board 31 and the shield case 62 are fixed to each other, so that the microphone 63 vibrates and the plate portion of the shield case 62 on the sound collecting portion 63a side having a diaphragm that converts sound into an electric signal. 62a and the circuit board 31 on the electrode part 63b side are sandwiched and fixed. Note that the outer diameter of the microphone 63 and the inner diameter of the microphone holder 62c may be set so that the microphone 63 can be directly fitted and fixed to the microphone holder 62c without attaching the packing 505. An elastic member such as rubber may be disposed between the sound collecting portion 63a and the plate portion 62a.

  The plate portion 62 a in the microphone holder 62 c of the shield case 62 is provided with an opening 81 having an inner diameter smaller than the outer diameter of the microphone 63. Note that the opening 81 may be appropriately set in shape and size as long as the microphone 63 can be supported from the sound collection unit side.

  The electrode part 63b of the microphone 63 is provided with a first contact 63c at the center of the electrode part 63b and a second contact 63d at a distance r from the first contact 63c. On the other hand, the circuit board 31 is provided with a third contact 82 at the center of the position facing the microphone holder 62c, and a fourth contact 83 on the circumference of the radius r with the third contact 82 as the center. Yes. When the microphone 63 is sandwiched between the circuit board 31 and the shield case 62, the first contact 63 c comes into contact with the third contact 82 and the second contact 63 d comes into contact with the fourth contact 83. Note that the fourth contact may not be connected to the circumference as long as it is separated from the third contact by the distance r. If the microphone 63 shown in a columnar shape is rotationally symmetric with respect to the third contact, such as a regular quadrangular prism, the position facing the second contact corresponding to each direction in which the microphone can be fitted into the microphone holder A fourth contact may be provided in the above. As a result, there is no difference that the fourth contact point is provided on the circumference of the radius r.

  9 is a plan view showing the operation unit 11, and FIG. 10 is a cross-sectional view taken along line XX of FIG. In FIG. 10, only the upper side from the shield case 62 is shown.

  As shown in FIG. 10, on the flexible wiring board 71, a press switch 91 that is arranged corresponding to the keys of the operation unit 11 such as a numeric keypad 11a and opens and closes contacts according to the pressing operation, and the operation unit And a light emitting element 92 for illuminating the eleven keys. The key sheet 101 having the keys of the operation unit 11 and the front cover 2b are disposed thereon. The numeric keypad 11a is formed of, for example, a resin that can transmit light.

  The flexible wiring board 71, the key sheet 101, and the upper cover 2b are provided with openings 93, 102, and 12 at positions corresponding to the openings 81 of the shield case 62, respectively. The upper case 2 b is provided with a wall 2 h that extends in a cylindrical shape from the edge of the opening 12 toward the key sheet 101 and is inserted into the opening 102 of the key sheet 102. The wall 2h may be provided over the entire circumference of the opening 12, or may be provided only on the side where the light emitting element 92 is disposed.

  As shown in FIG. 9, the numeric keys 11a are arranged in three rows vertically, and the light emitting elements 92 are arranged between the rows. In addition, the light emitting elements 92 are alternately arranged between the numeric keys 11a in the vertical direction. An opening 12 is provided in one of the positions between the four numeric keys 11a where the light emitting element 92 is not disposed.

  As shown in FIG. 11, the flexible wiring board 71 includes a tongue piece 71a protruding outward from the shield case 62, and a connection portion 112 provided on the tongue piece 71a. The tongue piece 71a is folded back, and the connecting portion 112 and the connecting portion 111 provided on the circuit board 31 are connected, whereby the flexible wiring board 71 and the circuit board 31 are electrically connected.

  As shown in FIG. 12, a camera module (electronic component) 121 and a flash light emitting unit (electronic component) 122 are provided on the back side (upper side in the drawing) of the circuit board 31. A tongue piece 71b provided at the end of the flexible wiring board 71 is folded and electrically connected to the camera module 121 and the light emitting part 122. The camera module 121 and the light emitting part 122 are connected to the circuit of the flexible wiring board 71 or flexible. It is controlled by a circuit on another board via a wiring board.

  FIG. 13A is a perspective view of the antenna unit 32 viewed from the same direction as FIG. 3, and FIG. 13B is a diagram of the antenna unit 32 viewed from slightly above the opening / closing side of the first housing 2. The antenna unit 32 includes a base unit 131 attached to the circuit board 31, an antenna element 132 disposed on the base unit, and a power supply terminal 133 for supplying power to the antenna element 132.

  The base portion 131 is formed of a non-conductive member such as a resin, and has a curved surface 131a facing the inner wall of the end 2b (see FIG. 1) of the first housing 2 and a frame portion provided inside the curved surface 131a. 131b. The curved surface 131a is formed, for example, as a curved surface that faces from the back side direction to the opening / closing side direction of the first housing 2 and is convex toward the opening / closing side when viewed from the back side. Be placed.

  The frame portion 131 b is formed so as to contact the back surface of the circuit board 31 and the opening / closing side end portion, and a feeding terminal 133 is provided at a position facing the back surface of the circuit board 31. The power supply terminal 133 is electrically connected to a power supply terminal 134 (see FIG. 6) provided on the back side of the circuit board 31.

  The antenna element 132 is a sheet metal such as phosphor bronze formed in a predetermined pattern shape, and is provided so as to be stretched over the entire surface of the curved surface 131a. The antenna element 132 is disposed over the entire surface of the curved surface 131a, and the projection part of the antenna element 132 viewed from the front side of the first housing 2 substantially coincides with the projection part of the antenna part 32. The description about the arrangement of the antenna unit 32 in the description of FIG. 4 may be regarded as the description about the arrangement of the antenna element 132.

  FIG. 14 is a block diagram showing an example of the configuration of the signal processing system of the mobile phone 1. The cellular phone 1 includes a CPU 141, a memory 142, a communication processing unit 143, an antenna element 132, an audio processing unit 144, a microphone 63, a speaker 145, an open / close detection unit 146, push switches 91 and 53, a main display unit 21, and a sub display unit 22. , Drive units 147 and 52 are provided.

  The CPU 141 and the memory 142 are configured as, for example, an IC provided on the circuit board 31, and perform predetermined calculations based on signals from various means and execute control of various means.

  The communication processing unit 143 includes a high-frequency circuit 61, and modulates various data such as audio data and image data processed by the CPU 141 in order to perform wireless communication using radio waves, via the antenna element 132. To send. Further, the communication processing unit 143 demodulates the signal received via the antenna element 132 and outputs the demodulated signal to the CPU 141.

  The audio processing unit 144 converts audio data from the CPU 141 into an audio signal and outputs the audio signal to the speaker 143, and converts an audio signal from the microphone 63 into audio data and outputs the audio data to the CPU 141.

  The open / close detection unit 146 is configured as a switch that outputs an ON signal to the CPU 141 when the angle between the first housing 2 and the second housing 3 is equal to or greater than a predetermined value, for example.

  The drive units 147 and 52 control the main display unit 21 and the sub display unit 22 based on signals from the CPU 141, respectively. The drive unit 147 is configured by, for example, an IC provided on the circuit board 44 and is provided at a position that does not overlap the antenna element 132 in the closed state.

  According to the mobile phone 1 described above, since the microphone 63 is sandwiched and fixed between the substrate 31 and the shield case 62, the microphone can be disposed as long as the substrate 31 and the shield case 62 are within a range facing each other. In addition, there is no need to place a microphone avoiding the shield case as in the prior art. In other words, the degree of freedom of the arrangement position of the microphone is improved. In a miniaturized device such as a portable terminal, a limited space in the housing is allocated to each part, so the freedom of the placement position of other parts is improved by improving the freedom of the placement position of the microphone. . Accordingly, for example, a portable terminal incorporating an antenna can be reduced in size, for example, a place where a microphone has conventionally been arranged can be assigned to an antenna arrangement.

  The microphone 63 is surrounded by a wall portion 62h of a microphone holder 62c provided in the shield case 62. Since the wall portion 62h is also plated with the shield case 62, noise can be prevented from entering the microphone 63. Is done.

  Since the shield case 62 is fixed to the substrate 31 with screws, the contact pressure between the shield case 62 and the ground line of the substrate 31 can be increased to enhance the shielding effect. Further, since the screw boss 62d adjacent to the microphone holder 62c is used in the screwing, the vibration of the microphone 63 is absorbed by the entire substrate 31 and the shield case 62, and a large vibration is locally generated in the vicinity of the microphone 63. It can be suppressed. For this reason, the fall of the shielding effect by vibration is suppressed.

  Regardless of the orientation of the microphone 63, the first contact 63c is in contact with the third contact 82, and the second contact 63d is in contact with the fourth contact 83. It is possible to conduct reliably without worrying about rotational deviation in the circumferential direction.

  Since it is not necessary to avoid that the shield case 62 and the microphone 63 overlap as in the prior art, the shield case 62 can be provided over a wide range. For this reason, a flexible wiring board on which a plurality of pressing switches 91 are arranged can be provided on the shield case 62. Further, since the shield case 62 is attached over a wide range of the substrate 31, the overall strength becomes uniform, and the torsional strength and the like are improved.

  While the non-arrangement position of the light emitting element 92 is set while maintaining the regularity of the relationship between the arrangement of the light emitting element 92 and the key arrangement of the operation unit 11, the arrangement space of the opening 12 is ensured. , Variation in the illumination amount of each key can be suppressed.

  Since the upper cover 2b is provided with the opening 12 and the wall 2h inserted into the opening 102 of the key sheet 101, a sound path for guiding sound from the outside to the microphone 63 is secured, and Since the key sheet 101 that also serves as a light guide for illuminating the numeric keypad 11a and the like is not exposed to the outside from the opening 12, the light of the light emitting element 92 can be prevented from leaking to the outside from the opening 12.

  The tongue 71a is folded back, and the connecting portion 112 and the connecting portion 111 are connected at the portion covered with the shield case 62 of the substrate 31, whereby the flexible wiring board 71 and the substrate 31 are electrically connected. Therefore, by reducing the area of the conductive means of the flexible wiring board 71, the flexible wiring board 71 can take a wide flat surface on which the device can be easily mounted on the shield case 62, and the shield case 62 can be connected to the connecting portion 112. It can be used for prevention of falling off.

  Since the tongue 71b is folded back and electrically connected to the camera module 121, the dead space can be reduced as compared with the conventional art. That is, conventionally, a flexible wiring board dedicated to the camera module and a connector for connecting the wiring board to another board are provided, and the wiring board and the connector are dead spaces. However, in the mobile phone 1, the wiring board for the camera module is also used as the flexible wiring board 71 on the opposite side across the substrate 31, so that the dead space can be reduced. For this reason, for example, the light emitting unit 122 can be provided at a position adjacent to the camera module 121 that has conventionally been provided with a connector for connecting the camera module 121 and would have become a dead space.

  Since the shield case 62 is fixed to the substrate 32 and is also fixed to the front side case 2c and the back side case 2d using the notch 62e into which the screw boss 2e is fitted. Structural strength such as strength is reinforced. As described above, since it is not necessary to avoid the shield case 62 and the microphone 63 overlapping as in the conventional case, the shield case 62 can be made wider than the conventional case to increase the strength. Further, since the shield case 62 can be positioned using the screw boss 2e, workability can be improved.

  The wireless communication terminal of the present invention is not limited to the above embodiment, and may be implemented in various aspects.

The shape and size of the shield body are not limited as long as the microphone can be sandwiched between the substrate and the substrate. For example, the plate-shaped thing in which the partition 62b is not provided is also included. Moreover, even if it is smaller than the conventional shield body, the degree of freedom of the arrangement position of the microphone is improved compared to the conventional one.
Further, although the present invention has been described using a microphone as an example of the electrical / acoustic conversion means, any device that converts electrical signals and sound may be used. For example, it goes without saying that the same effect can be obtained even if a speaker holder is provided in a shield case and the present invention is applied so that the speaker is sandwiched and fixed between the sound emitting part on the shield side and the substrate on the electrode part side.

It is an external appearance perspective view which shows the open state of the mobile telephone to which this invention is applied. It is an external appearance perspective view which shows the closed state of the mobile telephone to which this invention is applied. It is a perspective view which shows the internal structure of the mobile telephone to which this invention is applied in a closed state. It is a top view which shows the internal structure of the mobile telephone to which this invention is applied in a closed state. It is a disassembled perspective view which shows the structure inside the 2nd housing | casing of the mobile telephone to which this invention is applied. It is a disassembled perspective view which shows the structure inside the 1st housing | casing of the mobile telephone to which this invention is applied. It is a disassembled perspective view which shows the structure inside the 1st housing | casing of the mobile telephone to which this invention is applied. It is a top view which shows the microphone vicinity of the mobile telephone to which this invention is applied. It is a top view which shows the operation part of the mobile telephone to which this invention is applied. It is sectional drawing which shows the operation part of the mobile telephone to which this invention is applied. It is a side view which shows the conduction | electrical_connection means of the flexible wiring board of the mobile telephone to which this invention is applied. It is a perspective view which shows the camera module of the mobile telephone to which this invention is applied. It is a figure which shows the antenna part of the mobile telephone to which this invention is applied. It is a block diagram which shows the structure of the mobile telephone to which this invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mobile telephone (electronic device) 61 ... High frequency circuit 31 ... Board | substrate 62 ... Shield body 63 ... Microphone 63a ... Sound collection part (sound emission part) 63b ... Electrode part 81 ... Shield body opening part.

Claims (10)

A substrate having a high-frequency circuit;
A shield body for shielding the high-frequency circuit;
An electrode part on one side, a sound collecting part or a sound emitting part on the other, and an electrical / acoustic conversion means disposed on the surface of the substrate on which the high-frequency circuit is provided,
The shield body is provided with a shield body opening having a width smaller than the width of the electrical / acoustic conversion means when the electrode unit side is viewed from the sound collection unit or the sound emission unit side. The converting means is sandwiched between the shield body disposed on the sound collecting section or the sound emitting section side and the substrate disposed on the electrode side, and is fixed to the shield body opening. Electronic equipment. The shield body includes a wall portion surrounding the electrical / acoustic conversion means, and a screw boss provided adjacent to the wall portion,
The electronic device according to claim 1, wherein a screw penetrating the substrate is fitted into the screw boss, and the substrate and the shield body are fixed to each other. The shield body is provided with a holder into which the electrical / acoustic conversion means is fitted,
The electrode unit has a first contact point and a second contact point respectively at a center position and a predetermined distance from the center position when viewed from the substrate;
The substrate has a third contact at the center of the position facing the holder, and a fourth contact on a circumference centered on the third contact and having the predetermined distance as a radius. The electronic device according to claim 1 or 2. On the opposite side of the shield body from the substrate, a flexible printed wiring board in which a pressure switch is arranged is provided,
The electronic device according to any one of claims 1 to 3, wherein the wiring board is provided with a wiring board opening at a position facing the shield body opening. A pressing portion disposed on the pressing switch and capable of transmitting light;
A plurality of light emitting elements arranged on the wiring board,
A plurality of the pressing switches and the pressing portions are arranged in at least two rows,
The light emitting elements are arranged at least every other between the two rows and between the press switches continuous along any one of the two rows,
The electronic device according to claim 4, wherein the shield opening is provided at any one of the non-arranged positions of the light emitting element. A housing for accommodating the substrate, the shield body and the wiring board so as to be sandwiched between an upper case disposed on the wiring board side and a lower case disposed on the substrate side;
A key sheet that is disposed on the wiring board and has a pressing portion that transmits light on the pressing switch and transmits light to the pressing portion;
A light emitting element disposed between the wiring board and the key sheet,
The key sheet is provided with a key sheet opening at a position on the wiring board opening,
The upper case includes an upper case opening that opens above the key sheet opening, and a wall that extends in a cylindrical shape from the edge of the upper case opening to the inside of the housing and is inserted into the key sheet opening. The electronic device according to claim 4, further comprising: a portion. For connection of the wiring board, a board-side connection portion disposed between the board and the shield body,
The wiring board side connection part provided in the tongue piece formed in the edge part of the said wiring board, and the said tongue piece being folded back and connected to the said board | substrate side connection part is provided. The electronic device as described in any one of. An electronic component controlled via the wiring board, connected to a tongue piece formed at an end of the wiring board, and folded back to the back side of the board on which the high-frequency circuit is provided The electronic device according to claim 4, further comprising: an electronic component to be arranged. A housing for housing the substrate and the shield body;
A power supply terminal provided at an end of the substrate opposite to the shield body;
The substrate is formed in a curved shape extending so as to face from the direction facing the side where the power supply terminal is provided to the outside of the shield body, and is disposed inside the housing outside the shield body, An electronic device according to any one of claims 1 to 8, further comprising an antenna element fed from a terminal. A housing for accommodating the substrate and the shield body so as to be sandwiched between an upper case and a lower case;
The upper case or the lower case is provided with a screw boss for screwing the upper case and the lower case,
The electronic device according to claim 1, wherein the board and the shield case are provided with a hole or a notch into which the screw boss is fitted.

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