JP2019024010A - Substrate connection structure and electronic apparatus - Google Patents

Abstract

To provide a low cost substrate connection structure capable of reducing the number of components while simplifying connection work, and an electronic apparatus having the same.SOLUTION: The substrate connection structure comprises: a flexible wiring substrate 16 having an input connection portion 20 which is provided on one end part thereof opposing a switch button 15, and on the other end portion on an identical plane as the input connection portion 20, a connection terminal portion 21 is formed opposing a circuit board 14; and a holding member 17 to which the flexible wiring substrate 16 is attached being folded in a state that the input connection portion 20 positioned on the identical plane and a connection terminal portion 21 are disposed with the respective planes crossing at a right angle. Accordingly, the respective planes of the input connection portion 20 and the connection terminal portion 21 on the identical plane can be disposed crossing at a right angle with respect to each other by folding the flexible wiring substrate 16. In this state, by assembling the flexible wiring substrate 16 with the holding member 17, the switch button 15 and the circuit board 14 can be easily connected to each other.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a board connection structure used in various electronic devices such as a mobile terminal and a mobile phone, and an electronic device including the same.

  For example, in the board connection structure, as described in Patent Document 1, when the circuit board in the device and the motherboard are electrically connected, the adapter connector is connected to the circuit board in the device with a connection line, It is known that the adapter connector is inserted into a connector provided on the mother board to electrically connect the circuit board in the device and the mother board.

Japanese Patent Application Laid-Open No. 08-300966

  However, in such a board connection structure, when the device is attached to the motherboard, the adapter connector connected to the circuit board in the device and the connector provided on the motherboard must be connected in advance. Since it cannot be attached to the mother boat, the connection work is not only troublesome, but it is necessary to connect the adapter connector to the circuit board in the equipment with the connection line and provide the connector on the motherboard, so the number of parts increases, There is a problem that the cost cannot be reduced.

  The problem to be solved by the present invention is to reduce the number of parts, simplify the connection work, and reduce the cost.

  The present invention provides a wiring member in which a contact portion facing the switch button is provided at one end and a connection portion facing the circuit board is provided on the other end on the same plane as the contact portion, and the wiring member is attached The wiring member is bent along the edge of the contact portion and the edge of the connection portion, and the planes of the contact portion and the connection portion intersect each other. And is attached to the holding member so that the connecting portion is positioned on the back surface of the contact portion, and the holding member is configured such that the contact portion faces the switch button. And a holding groove which is provided in a part of the contact placement portion and into which the connection portion is inserted.

  According to the present invention, the number of parts can be reduced, and the connection work can be simplified and the cost can be reduced.

It is the front view which showed one Embodiment which applied this invention to the portable terminal device. FIG. 2 is an enlarged cross-sectional view showing a main part of the portable terminal shown in FIG. FIG. 2 is a perspective view illustrating a state in which the portable terminal shown in FIG. 1 is turned upside down and a device case is disassembled. FIG. 4 is an exploded perspective view of essential parts showing a state in which the lower case of the device case shown in FIG. 3 is further turned upside down and a switch button, a flexible wiring board, and a holding member are attached to the lower case. The flexible wiring board shown by FIG. 4 is shown, (a) is the expansion perspective view, (b) is the expanded sectional view in the BB arrow. The holding member shown by FIG. 4 is shown, (a) is the expansion perspective view which showed the front side, (b) is the expansion perspective view which showed the back side. FIG. 6 is an enlarged perspective view showing a state in which the flexible wiring board shown in FIG. 5 is bent.

Hereinafter, an embodiment in which the present invention is applied to a mobile terminal will be described with reference to FIGS.
As shown in FIGS. 1 to 3, the portable terminal includes a rectangular device case 1 that is long in the front-rear direction (vertical direction in FIG. 1). The device case 1 has an upper case 2 and a lower case 3, and is configured such that a module 4 is incorporated therein.

  As shown in FIGS. 1 to 3, the upper case 2 is configured such that the upper surface is formed in a substantially flat plate shape having a rectangular shape, and the side surface portion of the outer periphery thereof is attached to the lower case 3. In this case, a display window portion 5 is provided in a substantially upper half of the upper surface of the upper case 2, and a key input portion 6 is provided in a substantially lower half of the upper case 2.

  As shown in FIGS. 1 and 2, the display window 5 is provided along a substantially rectangular opening 5a formed on the upper surface of the upper case 2 and an edge of the opening 5a. And a protective glass 5b. The key input unit 6 includes various keys necessary for a portable terminal such as a numeric keypad, a cursor key, and a function key.

  As shown in FIGS. 2 to 4, the lower case 3 is formed such that the outer side surface portion is curved in an arc shape toward the bottom portion, and the lower portion of the side portion of the upper case 2 is attached to the upper portion of the side portion. It is configured to be. On the upper side of the lower case 3, a reading window portion 7a of the optical reading portion 7 described later is provided.

  Further, as shown in FIGS. 2 to 4, a connection lid 8 a that covers the external connection portion 8 so as to be openable and closable is attached to a substantially middle portion of the lower case 3 in the front-rear direction (diagonal left-right direction in FIG. 4). Yes. On the lower side of the lower case 3, a battery cover 9 for detachably closing the battery storage 10 for storing the rechargeable battery 10a is detachably attached. Further, switch portions 11 to be described later are respectively provided on both side portions of the lower case 3 positioned substantially in the middle in the front-rear direction.

  As shown in FIGS. 2 and 3, the module 4 includes an inner case 12, and the inner case 12 is configured such that various parts necessary for the portable terminal such as the display panel 13 and the circuit board 14 are mounted. Has been. The display panel 13 is a flat display panel such as a liquid crystal display panel or an EL (electroluminescence) display panel, and is configured to display various information necessary for the portable terminal electro-optically. Yes.

  That is, as shown in FIGS. 2 to 4, the display panel 13 is attached to the inner case 12 by the attachment member 12 a in a state corresponding to the display window 5 of the upper case 2, and the displayed information is displayed. It is configured to be visible from above the upper case 2 through the window portion 5. The circuit board 14 is provided with various electronic components necessary for the portable terminal such as the optical reading unit 7 and is arranged over almost the entire lower surface of the inner case 12 (upper surface in FIG. 3). Yes.

  In this case, as shown in FIGS. 3 and 4, the optical reading unit 7 is disposed on the upper side of the lower surface of the circuit board 14 (upper surface in FIG. 3), and the laser beam is emitted from the reading window portion 7 a of the lower case 3. The apparatus is configured to read the barcode of the article by emitting the light to the outside of the device case 1 and receiving the reflected light of the emitted laser beam.

  By the way, each of the switch portions 11 provided on both side portions located substantially in the middle of the lower case 3 is a trigger switch, and as shown in FIGS. 2 and 4, the switch button 15 and the flexible wiring board 16 Holding member 17. The switch button 15 has a button part 18 and an elastic part 19.

  As shown in FIG. 2, the button portion 18 has a cap-shaped head portion 18 a and an operation shaft portion 18 b provided at the center of the head portion 18 a, and the head portion 18 a is a side surface of the lower case 3. It is configured so as to be able to appear and retract in a button insertion hole 3a provided in the section. In this case, a stopper piece 18c for contacting the inner peripheral edge of the button insertion hole 3a of the lower case 3 and preventing the head 18a from slipping out is provided at the inner end of the outer periphery of the head 18a. ing.

  As shown in FIG. 2, the elastic portion 19 is formed by bulging an elastic sheet such as urethane rubber or silicone rubber so that the button portion 18 is elastically pushed out in a state corresponding to the flexible wiring board 16. It is configured. That is, the elastic portion 19 is formed with a bulging portion 19 a protruding toward the button portion 18 at the central portion of the elastic sheet. A mounting portion 19b disposed between the flexible wiring board 16 and the side surface portion of the lower case 3 is provided on the peripheral edge portion of the bulging portion 19a.

  In this case, as shown in FIG. 2, a movable contact 19c is provided on the inner surface of the bulging portion 19a. The switch button 15 has a configuration in which the operation shaft portion 18b of the button portion 18 is fixed to the outer surface of the bulging portion 19a of the elastic portion 19 by bonding or the like. A configuration in which the elastic portion 19 is integrally formed by two-color molding may be used.

  Thereby, as shown in FIG. 2, the switch button 15 is bulged by the button portion 18 being elastically pushed outward from the button insertion hole 3a of the lower case 3 by the bulging portion 19a of the elastic portion 19. The movable contact 19 c in the protruding portion 19 a is configured to be separated from the flexible wiring board 16. In addition, when the button portion 18 is pushed from the outside to the inside of the lower case 3, the switch button 15 has the bulging portion 19 a of the elastic portion 19 elastically deformed and the movable contact 19 c is flexible. It is configured to be elastically pressed against.

  As shown in FIGS. 2, 4 and 5, the flexible wiring board 16 includes a bendable film 16a, and an input contact portion 20 facing the switch button 15 is provided at one end of the film 16a. A connection terminal portion 21 facing the circuit board 14 is provided at the other end on the same plane as the input contact portion 20, and a connection wiring portion for electrically connecting them between the input contact portion 20 and the connection terminal portion 21. 22 is provided.

  That is, as shown in FIGS. 5 and 7, the flexible wiring board 16 is formed on the same surface of the film 16a by forming a metal foil such as copper or aluminum on one surface of the film 16a and patterning the metal foil. The input contact portion 20 is formed in a pattern at one end thereof, the connection terminal portion 21 is formed in a pattern at the other end portion, and the connection wiring portion 22 is formed between these patterns.

  In this case, as shown in FIGS. 5 and 7, the input contact portion 20 is formed on a pair of comb-shaped electrode portions 20a. The connection terminal portion 21 is formed on a pair of quadrangular electrode portions 21a. The connection wiring part 22 is formed on a pair of linear electrode lines 22a. The flexible wiring board 16 includes a first reinforcing plate corresponding to the input contact portion 20 on a surface opposite to the same surface on which the input contact portion 20, the connection terminal portion 21, and the connection wiring portion 22 are provided. 23 and the second reinforcing plate 24 corresponding to the connection terminal portion 21 are provided.

  Accordingly, the flexible wiring board 16 is configured such that the connection wiring portion 22 located between the first reinforcing plate 23 and the second reinforcing plate 24 is freely bent as shown in FIGS. 5 and 7. ing. As shown in FIGS. 2 and 7, the flexible wiring board 16 is configured such that the connection wiring portion 22 is bent and attached to the holding member 17.

  That is, as shown in FIGS. 2, 5, and 7, the flexible wiring board 16 has the connection wiring portion 22 at the edge of the second reinforcing plate 24 on the side opposite to the first reinforcing plate 23 (left side in FIG. 7). In this state, the connection wiring portion 22 is bent at the edge of the first reinforcing plate 23 toward the back side of the first reinforcing plate 23 (the right side in FIG. 7). The reinforcing plate 23 is configured to be folded back on the back surface of the reinforcing plate 23.

  As a result, the flexible wiring board 16 is arranged with the second reinforcing plate 24 perpendicular to the back surface of the first reinforcing plate 23 as shown in FIGS. 2, 4, 5, and 7. Thus, the connection wiring portion 22 is bent in a state where the input contact portion 20 and the connection terminal portion 21 are orthogonal to each other.

  On the other hand, as shown in FIGS. 2, 4, and 6, the holding member 17 has an input contact portion 20 and a connection terminal portion 21 that are located on the same plane by bending the connection wiring portion 22 of the flexible wiring board 16. Are mounted in a state where they are orthogonal to each other, and are assembled in the device case 1 in this state so that the input contact portion 20 and the connection terminal portion 21 correspond to the switch button 15 and the circuit board 14. ing.

  That is, as shown in FIGS. 2, 4, and 6, the holding member 17 includes a holding main body portion 25 that is disposed on the mounting portion 3 b provided on the side surface portion corresponding to the button insertion hole 3 a of the lower case 3. The input contact portion 20 of the flexible wiring board 16 in the bent state provided on the holding main body portion 25 is provided on the holding main body portion 25 and the contact arrangement portion 26 arranged together with the first reinforcing plate 23. The holding terminal 27 is inserted into the connecting terminal portion 21 together with the second reinforcing plate 24.

  In this case, as shown in FIGS. 2, 4, and 6, the contact placement portion 26 is a storage recess provided on one surface of the holding body portion 25 facing the mounting portion 3 b of the lower case 3. The contact arrangement portion 26 is arranged in a state where the input contact portion 20 of the flexible wiring board 16 and the first reinforcing plate 23 overlap each other, and the elastic portion 19 of the switch button 15 further overlaps the input contact portion 20. It is comprised so that it may be arrange | positioned in the state.

  As shown in FIGS. 2, 4, and 6, the contact placement portion 26 includes a wiring groove portion 26 a in which the connection wiring portion 22 of the bent flexible wiring board 16 is disposed, and a holding groove from the upper side portion to the intermediate portion. 27 is provided. The holding groove 27 is a flat slit hole provided horizontally in the intermediate portion of the holding main body portion 25 and is configured to be inserted in a state where the connection terminal portion 21 and the second reinforcing plate 24 overlap each other. Has been.

  In this case, as shown in FIGS. 2, 4, and 6, when the connection terminal portion 21 and the second reinforcing plate 24 are inserted into the holding groove 27, the distal end portion of the inserted connection terminal portion 21 is inserted. A notch 27a is provided for exposing the side upward. The holding member 17 is provided with a substrate support portion 27b that supports the edge portion of the circuit board 14 in a state where the edge portion is positioned above the notch portion 27a.

  As a result, the holding member 17 is arranged on the contact arrangement portion 26 in a state where the input contact portion 20 of the flexible wiring board 16 and the first reinforcing plate 23 overlap each other, as shown in FIGS. 2, 4 and 6. The connection terminal portion 21 of the flexible wiring board 16 and the second reinforcing plate 24 are inserted into the holding groove 27 in a state where the connection terminal portion 21 overlaps the second reinforcing plate 24, and the inserted connection terminal portion 21 is located above the notch portion 27 a of the holding groove 27. The flexible wiring board 16 is exposed and is configured to be attached in this state.

  Further, as shown in FIGS. 2, 4, and 6, the holding member 17 is disposed when the holding main body portion 25 to which the flexible wiring board 16 is attached is disposed on the mounting portion 3 b in the lower case 3. The switch button 15 is configured to be pressed and held against the mounting portion 3b of the lower case 3. That is, the holding member 17 has the button portion 18 inserted into the button insertion hole 3a of the lower case 3 and the elastic portion 19 arranged in the contact arrangement portion 26. In this state, the holding main body portion 25 is mounted in the lower case 3. When arranged in the portion 3b, the mounting portion 19b of the elastic portion 19 is configured to be pressed against the mounting portion 3b of the lower case 3 and held.

  Further, as shown in FIGS. 2, 4 and 5, the holding member 17 is provided when the holding main body portion 25 to which the flexible wiring board 16 is attached is disposed on the mounting portion 3 b in the lower case 3. The connection terminal portion 21 inserted in the holding groove 27 is configured to be exposed to the upper side from the notch portion 27a so as to face the circuit board 14 in a state where it can be electrically connected to the circuit board 14. In this case, the circuit board 14 is provided with a pair of spring members 28 that elastically contact the pair of electrode portions 21 a that are the connection terminal portions 21 of the flexible wiring board 16.

  Each of the pair of spring members 28 is a leaf spring or a coil spring, as shown in FIGS. The pair of spring members 28 are configured so that the circuit board 14 is placed in the lower case 3 together with the inner case 12 in a state where the holding main body portion 25 to which the flexible wiring board 16 is attached is disposed in the mounting portion 3b in the lower case 3. When arranged, it is arranged in a notch 27 a provided in the holding groove 27 of the holding member 17, and is configured to electrically connect the connection terminal portion 21 and the circuit board 14.

  As shown in FIGS. 2 and 6, the holding member 17 has the circuit board 14 in the lower case 3 together with the inner case 12 in a state where the holding main body portion 25 is disposed in the mounting portion 3 b in the lower case 3. When arranged in the above, the edge of the circuit board 14 located in the vicinity of the pair of spring members 28 is supported by the board support part 27b. Thereby, the holding member 17 is configured to keep the connection terminal portion 21 and the circuit board 14 at a constant interval, and to keep the contact pressure of the spring member 28 to the connection terminal portion 21 constant.

Next, the case where such a portable terminal is assembled will be described.
First, the module 4 incorporated in the device case 1 is assembled. In this case, the display panel 13 is attached to the inner case 12 by the attachment member 12a, and the circuit board 14 is attached. At this time, various components such as the optical reading unit 7 and each pair of spring members 28 are attached to the circuit board 14 in advance, and the circuit board 14 is attached to the inner case 12. Thereby, the module 4 is assembled.

  Before the module 4 is assembled in the lower case 3, first, the flexible wiring board 16 is attached to the holding member 17, and the holding member 17 is assembled to the mounting portion 3 b in the lower case 3 together with the flexible wiring board 16. In this case, as shown in FIG. 7, first, the connection wiring portion 22 of the flexible wiring board 16 is placed on the opposite side of the first reinforcing plate 23 at the edge of the second reinforcing plate 24, that is, on the input contact portion 20 side. Bend almost at a right angle.

  In this state, the connection wiring portion 22 is bent toward the back side of the first reinforcing plate 23 at the edge portion of the first reinforcing plate 23, and is folded back so as to overlap the back surface of the first reinforcing plate 23. As a result, the flexible wiring board 16 is arranged in a state where the second reinforcing plate 24 is perpendicular to the back surface of the first reinforcing plate 23, as shown in FIGS. And the connecting terminal portion 21 are bent in a state where the planes thereof are orthogonal to each other.

  When attaching the bent flexible wiring board 16 to the holding member 17, first, the connection terminal portion 21 together with the second reinforcing plate 24 is inserted into the holding groove 27 of the holding member 17 from the contact arrangement portion 26 side. The inserted connection terminal portion 21 is exposed to the upper side corresponding to the notch portion 27 a of the holding groove 27. In this state, the input contact portion 20 of the flexible wiring board 16 is arranged on the contact arrangement portion 26 of the holding member 17 together with the first reinforcing plate 23.

  At this time, the connection wiring part 22 that is folded and arranged on the back surface of the first reinforcing plate 23 is arranged in the wiring groove part 26 a provided in the contact arrangement part 26 of the holding member 17. Therefore, even if the connection wiring portion 22 is folded back and overlaps the back surface of the first reinforcing plate 23 provided in the input contact portion 20, the input contact portion 20 is connected to the contact placement portion 26 of the holding member 17. 23 is arranged well in a flat state without rattling. As a result, the flexible wiring board 16 is attached to the holding member 17.

  Then, the holding member 17 to which the flexible wiring board 16 is attached is disposed on the mounting portion 3 b in the lower case 3. At this time, the elastic portion 19 of the switch button 15 is placed on the contact placement portion 26 of the holding member 17 so as to overlap the input contact portion 20 of the flexible wiring board 16. Accordingly, the switch button 15 is held by the contact placement portion 26 of the holding member 17 in a state where the elastic portion 19 of the switch button 15 corresponds to the input contact portion 20 of the flexible wiring board 16.

  In this state, the button portion 18 of the switch button 15 is inserted into the button insertion hole 3 a provided in the side surface portion of the lower case 3 from the inside thereof, and the holding member 17 is disposed on the mounting portion 3 b in the lower case 3. In this state, the module 4 is disposed in the lower case 3. Then, the holding member 17 is sandwiched between the side surface portion of the inner case 12 and the mounting portion 3b of the lower case 3, and the attachment portion 19b of the elastic portion 19 of the switch button 15 is connected to the contact arrangement portion 26 of the holding member 17 and the lower portion. It arrange | positions in the state pinched | interposed between the side parts of case 3. As shown in FIG.

  At this time, the head portion 18a of the button portion 18 is elastically inserted into the button insertion hole 3a of the lower case 3 by the bulging portion 19a of the elastic portion 19 of the switch button 15, and the stopper piece 18c of the head portion 18a is moved to the button. It contacts the edge of the insertion hole 3a. In this state, the head portion 18a of the button portion 18 protrudes from the button insertion hole 3a of the lower case 3, and the movable contact 19c provided in the bulging portion 19a of the elastic portion 19 of the switch button 15 is flexible wiring. The input contact portion 20 of the substrate 16 is disposed so as to be separated from the input contact portion 20.

  Further, when the module 4 is arranged in the lower case 3 in this way, each pair of spring members 28 provided on the circuit board 14 is arranged in the notch 27 a of the holding groove 27 in the holding member 17. The pair of spring members 28 are in elastic contact with the pair of electrode portions 21a in the connection terminal portion 21 of the flexible wiring board 16, respectively. Accordingly, the connection terminal portion 21 of the flexible wiring board 16 and the circuit board 14 are electrically connected by the pair of spring members 28.

  At this time, the edge of the circuit board 14 located in the vicinity of the pair of spring members 28 is supported by the board support part 27 b of the holding member 17. Thereby, the circuit board 14 and the connection terminal portion 21 facing the circuit board 14 are kept at a constant interval. For this reason, a pair of spring member 28 provided in the circuit board 14 contacts the connection terminal portion 21 with a constant contact pressure.

  Thereby, the module 4 is incorporated in the lower case 3 and the switch unit 11 is incorporated. In this state, the optical reading unit 7 provided on the circuit board 14 is arranged corresponding to the reading window 7 a of the lower case 3. Then, the upper case 2 is attached to the lower case 3 by screwing. At this time, the display panel 13 of the module 4 may correspond to the display window 5 of the upper case 2 and the key input unit 6 may correspond to the lower side of the circuit board 14 of the module 4. Thereby, a portable terminal is assembled.

Next, the operation of such a portable terminal will be described.
When the portable terminal is turned on, menu information is displayed on the display panel 13, and a menu is selected by performing a touch operation while viewing the displayed information. In this state, the key input unit 6 can be operated to perform arithmetic processing.

  When reading the barcode of the article with this portable terminal, one of the switch parts 11 provided on both sides of the device case 1 is operated to switch to the reading mode by the optical reading part 7, and in this state, the other When the switch unit 11 is operated, the optical reading unit 7 starts a reading operation. At this time, the optical reading unit 7 emits a laser beam from the reading window unit 7a and receives the reflected light of the emitted laser beam, thereby reading the barcode of the article.

  In this case, when the button portion 18 of the switch button 15 is pressed toward the inside of the device case, the operation shaft portion 18b of the button portion 18 presses the bulging portion 19a of the elastic portion 19 to be elastic. The movable contact 19c provided in the bulged portion 19a is brought into contact with the input contact portion 20 of the flexible wiring board 16, and the pair of electrode portions 20a of the input contact portion 20 are brought into conduction.

  Then, the input contact portion 20 of the flexible wiring board 16 outputs a conduction signal as a trigger signal, and the trigger signal which is this conduction signal is sent to the connection terminal portion 21 via the connection wiring portion 22, and from the connection terminal portion 21. It is given to the circuit board 14 via a pair of spring members 28. As a result, the barcode of the article is read by the optical reading unit 7.

  As described above, according to the board connection structure of the portable terminal, the input contact portion 20 facing the switch button 15 is provided at one end portion, and the circuit board 14 is provided at the other end portion on the same plane as the input contact portion 20. And the flexible wiring board 16 provided with the connection terminal portion 21 facing each other, and the flexible wiring substrate 16 is bent so that the planes of the input contact portion 20 and the connection terminal portion 21 located on the same plane are mutually By providing the holding member 17 to which the wiring board 16 is attached in an orthogonal state, the number of components can be reduced, and the connection work can be simplified and the cost can be reduced.

  That is, in this board connection structure, by bending the flexible wiring board 16, the planes of the input contact portion 20 and the connection terminal portion 21 provided on the same plane can be made orthogonal to each other. Since the wiring board 16 can be assembled to the holding member 17, the switch button 15 and the circuit board 14 are simply and reliably connected by making the holding member 17 face the switch button 15 and the circuit board 14. be able to.

  For this reason, this board connection structure eliminates the need for connection parts such as connectors as described in the prior art, so that the number of parts can be reduced and the flexible wiring board 16 does not need to be routed. Since the button 15 and the circuit board 14 can be arranged close to each other, the length of the wiring can be reduced to the minimum, thereby simplifying the wiring work and the connection work. Cost reduction can be achieved.

  In this case, the holding member 17 is configured so that the flexible contact substrate 16 is bent and the input contact portion 20 is switched in a state where the planes of the input contact portion 20 and the connection terminal portion 21 located on the same plane are orthogonal to each other. By having the contact arrangement part 26 arranged facing the button 15 and the holding groove 27 exposed in a state where the connection terminal part 21 is inserted and opposed to the circuit board 14, the connection terminal part 21 can be inserted into and fixed to the holding groove 27 of the holding member 17 and the input contact portion 20 can be arranged on the contact arrangement portion 26 of the holding member 17, so that the flexible wiring board 16 can be easily and securely assembled to the holding member 17. be able to.

  That is, the flexible wiring board 16 is provided with a connection wiring portion 22 between the input contact portion 20 at one end of the bendable film 16a and the connection terminal portion 21 at the other end. The connection wiring portion 22 can be bent toward the contact portion 20 side at a substantially right angle, and in this state, the connection wiring portion 22 can be bent toward the back surface side of the input contact portion 20 and can be folded back so as to overlap the back surface of the input contact portion 20.

  For this reason, since the flexible wiring board 16 can be bent in a state where the input contact portion 20 and the connection terminal portion 21 are orthogonal to each other, the connection terminal portion 21 is placed in the holding groove 27 of the holding member 17. The input contact portion 20 of the flexible wiring board 16 can be reliably and satisfactorily arranged on the contact arrangement portion 26 of the holding member 17 while being securely inserted and inserted from the side.

  In this case, since the contact placement portion 26 of the holding member 17 is provided with a wiring groove portion 26a for placing the connection wiring portion 22, the connection wiring portion 22 is folded and overlapped with the back surface of the input contact portion 20. Even if it is arranged in a state, the connection wiring part 22 can be arranged in the wiring groove part 26 a of the contact arrangement part 26.

  Therefore, in this holding member 17, even if the connection wiring portion 22 is folded back and overlaps the back surface of the input contact portion 20, the input contact portion 20 does not rattle on the contact placement portion 26 of the holding member 17 and is flat. The flexible wiring board 16 can be satisfactorily attached to the holding member 17 in a stable state.

  Further, the connection terminal portion 21 and the circuit board 14 of the flexible wiring board 16 are electrically connected by a pair of spring members 28, whereby the connection terminal portion 21 and the circuit board 14 are connected to each other by a pair of spring members 28. Can be connected easily and securely. That is, the pair of spring members 28 are provided in a state of being electrically connected to the circuit board 14, so that when the circuit board 14 is disposed above the holding member 17, the pair of spring members 28 is connected. Since it can be made to contact elastically with a pair of electrode part 21a of terminal part 21, connection terminal part 21 and circuit board 14 can be connected easily and reliably.

  In this case, when the connection terminal portion 21 of the flexible wiring board 16 is inserted into the holding groove 27 of the holding member 17 together with the second reinforcing plate 24, the connection terminal portion 21 is directed upward from the holding groove 27. By providing the notch portion 27a for exposing, when the circuit board 14 is disposed above the holding member 17, the connection terminal portion 21 can be connected to the circuit board 14 through the notch portion 27a. Therefore, the pair of spring members 28 can be easily brought into contact with the connection terminal portion 21 through the notch portion 27a.

  In addition, the holding member 17 includes a board support part 27b that supports the circuit board 14 with the input contact part 20 facing the circuit board 14, so that the connection terminal part 21 and the circuit board 14 are paired with each other. When connected by the spring member 28, the circuit board 14 can be supported by the board support portion 27b. For this reason, since the circuit board 14 and the connecting terminal portion 21 opposed to the circuit board 14 can be kept at a constant interval, the pair of spring members 28 provided on the circuit board 14 are not plastically deformed, and the pair of spring members 28 can be reliably and satisfactorily brought into contact with the connection terminal portion 21 with a constant contact pressure.

  Further, the flexible wiring board 16 includes a first reinforcing plate 23 corresponding to the input contact portion 20 and a connection terminal portion 21 on a surface opposite to the same surface on which the input contact portion 20 and the connection terminal portion 21 are provided. Are provided with the second reinforcing plate 24 corresponding to the above, so that the flexible wiring board 16 can be reliably and satisfactorily secured to the holding member 17 even when the flexible wiring board 16 is formed of a bendable film 16a. Can be attached to.

  In addition, such a portable terminal includes a device case 1 in which a holding member 17 to which a flexible wiring board 16 is attached is incorporated, and a switch button 15 appears and disappears outside the device case 1 on a side surface of the device case 1. The circuit board 14 is disposed in the device case 1 so as to be orthogonal to the side surface portion of the device case 1, and the holding member 17 faces the input contact portion 20 of the flexible wiring board 16 to the switch button 15. In addition, the switch button 15 and the circuit board 14 can be connected to each other by the flexible wiring board 16 in the shortest manner by being incorporated in the device case 1 with the connection terminal portion 21 facing the circuit board 14. Can do.

  In this case, in this portable terminal, when the circuit board 14 is attached in the lower case 3 with the holding member 17 to which the flexible wiring board 16 is attached disposed in the lower case 3 of the device case 1, The connection terminal portion 21 of the flexible wiring board 16 and the circuit board 14 are electrically connected by a pair of spring members 28, thereby easily connecting the connection terminal portion 21 of the flexible wiring board 16 and the circuit board 14. Since connection is possible, the connection work can be further simplified.

  In the above-described embodiment, the flexible wiring board 16 is provided with the input contact portion 20 at one end portion of the film 16a and the connection terminal portion 21 at the other end portion on the same surface, and the connection wiring therebetween. Although the case where the portion 22 is provided and the first reinforcing plate 23 and the second reinforcing plate 24 are provided on the back surface of the film 16a has been described, the present invention is not limited to this, for example, the pair of electrodes of the input contact portion 20 on the first reinforcing plate 23 A portion 20a, a pair of electrode portions 21a of the connection terminal portion 21 on the second reinforcing plate 24, a pair of electrode lines 22a of the connection wiring portion 22 on the film 16a, and the film 16a. You may comprise so that the input contact part 20 and the connection terminal part 21 of the 2nd reinforcement board 24 may be connected to an electrical enemy.

  In the above-described embodiment, the case where the present invention is applied to a mobile terminal is described. However, the present invention is not necessarily a mobile terminal, and can be widely applied to various electronic devices such as a mobile phone and a portable information processing device. Can do.

As mentioned above, although one Embodiment of this invention was described, this invention is not restricted to this, The invention described in the claim and its equal range are included.
The invention described in the claims of the present application will be appended below.

(Appendix)
The invention according to claim 1 is a wiring member in which a contact portion facing the switch button is provided at one end, and a connection portion facing the circuit board is provided at the other end on the same plane as the contact portion; A holding member to which the wiring member is attached, and the wiring member is bent along an edge of the contact portion and an edge of the connection portion, and each of the contact portion and the connection portion. It is attached to the holding member such that the planes intersect with each other and the connection portion is positioned on the back surface of the contact portion, and the holding member has the contact portion A board connection structure comprising: a contact placement portion disposed to face the switch button; and a holding groove provided in a part of the contact placement portion and into which the connection portion is inserted. .

  According to a second aspect of the present invention, in the board connection structure according to the first aspect, the wiring member includes a back surface of a first surface on which the contact portion and the connection portion are provided along an edge portion of the contact portion. The substrate is bent approximately 180 degrees toward the side and is bent approximately 90 degrees toward the first surface along the edge of the connection portion, and is attached to the holding member. Connection structure.

  According to a third aspect of the present invention, in the board connection structure according to the first or second aspect, the contact portion has a first reinforcing plate on the back surface of the surface facing the switch button, and the connection portion Has a second reinforcing plate on the back surface of the surface facing the circuit board, the first reinforcing plate is placed on the contact placement portion so as to overlap the contact portion, and the second reinforcing plate is It is a board | substrate connection structure characterized by being inserted in the said holding groove so that it may overlap with the said connection part.

  According to a fourth aspect of the present invention, in the board connection structure according to any one of the first to third aspects, the wiring member includes the contact portion and the connection portion between the contact portion and the connection portion. The board connection structure is characterized in that it has a connection wiring part to be electrically connected, and the holding member has a wiring groove part in which the connection wiring part is arranged.

  According to a fifth aspect of the present invention, in the board connection structure according to the fourth aspect, the length of the connection wiring portion in the vertical direction from the one end portion toward the other end portion is the length of the contact portion in the vertical direction. It is a board | substrate connection structure characterized by being formed shorter than length.

  According to a sixth aspect of the present invention, in the board connection structure according to the fourth aspect, the length of the connection wiring portion in the vertical direction from the one end portion to the other end portion is from the end portion of the contact arrangement portion. The substrate connection structure is characterized by being formed substantially equal to the length to the holding groove.

  The invention described in claim 7 is the substrate connection structure according to any one of claims 1 to 6, wherein the holding groove holds the electrode portion of the connection portion when the connection portion is inserted. It is a board | substrate connection structure provided with the notch part exposed from a groove | channel.

  According to an eighth aspect of the present invention, in the board connection structure according to the seventh aspect, the connection part and the circuit board are electrically connected by a spring member passing through the notch contacting the electrode part. It is the board | substrate connection structure characterized by being connected to.

  According to a ninth aspect of the present invention, in the substrate connection structure according to any one of the first to eighth aspects, the holding groove is provided in a substantially middle portion of the holding member. Connection structure.

  A tenth aspect of the present invention is an electronic apparatus comprising the substrate connection structure according to any one of the first to ninth aspects.

  An eleventh aspect of the present invention is the electronic device according to the tenth aspect, further comprising a device case in which the holding member to which the wiring member is attached is incorporated, and the switch button is provided on a side surface of the device case. The circuit board is disposed perpendicularly to the side surface portion of the device case, and the holding member includes the contact portion of the wiring member. The electronic device is incorporated in the device case in a state of being opposed to the switch button and having the connection portion opposed to the circuit board.

  According to a twelfth aspect of the present invention, in the electronic device according to the eleventh aspect, the circuit board is mounted in the device case in a state where the holding member to which the wiring member is mounted is disposed in the device case. In this case, the circuit board and the connection portion of the wiring member are electrically connected by a spring member.

DESCRIPTION OF SYMBOLS 1 Device case 2 Upper case 3 Lower case 4 Module 11 Switch part 12 Inner case 14 Circuit board 15 Switch button 16 Flexible wiring board 17 Holding member 18 Button part 19 Elastic part 20 Input contact part 21 Connection terminal part 22 Connection wiring part 23 First reinforcing plate 24 Second reinforcing plate 26 Contact arrangement portion 26a Wiring groove portion 27 Holding groove 27a Notch portion 27b Substrate support portion 28 Spring member

In order to solve the above problems, a board connection structure according to the present invention is a board connection structure for electrically connecting a switch button to a circuit board, and a button contact portion facing the switch button has a predetermined first. A flat button contact placement portion disposed on a surface, and a second contact surface that is the back side of the first surface of the button contact placement portion is formed to extend perpendicularly to the second surface, and And a plate-like substrate contact arrangement portion which is electrically connected to the button contact portion and which is disposed on one surface and faces the circuit board .
Further, in order to solve the above-described problem, a board connection structure for electrically connecting the switch button to the circuit board is provided, and the board contact structure has a button contact portion facing the switch button having a predetermined first. A flat button contact placement portion disposed on a surface, and a second contact surface that is the back side of the first surface of the button contact placement portion is formed to extend perpendicularly to the second surface, and It has a flat board contact arrangement part in which a board contact part which is electrically connected to a button contact part and faces the circuit board is arranged on one side.

Claims (12)

A wiring member provided with a contact portion facing the switch button at one end and a connection portion facing the circuit board at the other end on the same plane as the contact portion;
A holding member to which the wiring member is attached;
With
The wiring member is bent along an edge portion of the contact portion and an edge portion of the connection portion so that planes of the contact portion and the connection portion intersect each other, and the contact point It is attached to the holding member so that the connection part is located on the back of the part,
The holding member includes a contact placement portion in which the contact portion is disposed to face the switch button, and a holding groove provided in a part of the contact placement portion and into which the connection portion is inserted. A board connection structure characterized by that.   2. The board connection structure according to claim 1, wherein the wiring member is bent by approximately 180 degrees along an edge portion of the contact portion toward a back side of a first surface on which the contact portion and the connection portion are provided. And the board | substrate connection structure characterized by being bent about 90 degree | times toward the said 1st surface side along the edge of the said connection part, and being attached to the said holding member. The board connection structure according to claim 1 or 2, wherein the contact portion has a first reinforcing plate on the back surface of the surface facing the switch button,
The connection portion has a second reinforcing plate on the back surface of the surface facing the circuit board,
The first reinforcing plate is disposed on the contact placement portion so as to overlap the contact portion,
The board connection structure, wherein the second reinforcing plate is inserted into the holding groove so as to overlap the connection portion. 4. The substrate connection structure according to claim 1, wherein the wiring member includes a connection wiring portion that electrically connects the contact portion and the connection portion between the contact portion and the connection portion. 5. Have
The substrate connection structure, wherein the holding member has a wiring groove portion in which the connection wiring portion is disposed.   5. The board connection structure according to claim 4, wherein a length of the connection wiring portion in a vertical direction from the one end portion to the other end portion is shorter than a length of the contact portion in the vertical direction. A board connection structure characterized by the above.   5. The board connection structure according to claim 4, wherein a length of the connection wiring portion in a vertical direction from the one end portion to the other end portion is substantially equal to a length from the end portion of the contact arrangement portion to the holding groove. A substrate connection structure formed.   7. The substrate connection structure according to claim 1, wherein the holding groove includes a notch that exposes the electrode portion of the connection portion from the holding groove when the connection portion is inserted. A board connection structure characterized by comprising:   8. The board connection structure according to claim 7, wherein the connection part and the circuit board are electrically connected by a spring member passing through the notch contacting the electrode part. Board connection structure.   9. The board connection structure according to claim 1, wherein the holding groove is provided in a substantially middle part of the holding member.   An electronic apparatus comprising the substrate connection structure according to claim 1.   The electronic device according to claim 10, further comprising a device case in which the holding member to which the wiring member is attached is incorporated, wherein the switch button is provided on a side surface portion of the device case so as to be able to appear and disappear outside the device case. In the device case, the circuit board is disposed orthogonal to the side surface portion of the device case, the holding member has the contact portion of the wiring member opposed to the switch button, and The electronic device is incorporated in the device case in a state where the connection portion faces the circuit board.   12. The electronic device according to claim 11, wherein the circuit board and the wiring are mounted when the circuit board is mounted in the device case in a state where the holding member to which the wiring member is mounted is disposed in the device case. An electronic apparatus, wherein the connecting portion of the member is electrically connected by a spring member.

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