JP2016178068A - Connector and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector capable of being reduced in mounting area and made compact, and an electronic apparatus comprising the same.SOLUTION: A connector body 26 has a connector part 24 having a plurality of connector leads 27 arrayed at intervals S1, and a relay substrate 28 having the connector part 24 arranged on an upper surface 28a. A side of respective one-end parts 29a of a plurality of relay leads 29 arrayed at intervals S2 having the same value with the intervals S1 is provided on the upper surface 28a of the relay substrate 28, and a side of other-end parts 29b of the plurality of relay leads 29 arrayed at intervals S3 wider than the intervals S2 and a plurality of electrodes 30 arrayed at intervals wider than the intervals S3 and connected to the other-end parts 29b of the plurality of relay leads 29 are provided on a lower surface 28b of the relay substrate 28.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a connector used in an electronic device such as a portable information terminal and an electronic device including the connector.

  For example, as described in Patent Document 1, a connector having a configuration in which a plurality of connector leads are arranged on a connector body at predetermined intervals and exposed on the front and back surfaces of the connector body is known. .

JP 2006-286530 A

  In this type of connector, the front surface side of the connector body is formed on one of the female connector portion and the male connector portion, and the terminals of the plurality of connector leads protrude from the both sides of the back surface side of the connector body. It is configured. In this case, the plurality of terminals protruding from both sides on the back side of the connector main body are arranged in a staggered manner so that the protruding lengths are alternately different along the arrangement direction and do not overlap in the front and back directions. It has become.

  However, in such a connector, each terminal of the plurality of connector leads is configured to protrude outward from both sides of the connector body, so that the area required for mounting on the wiring board is larger than that of the connector body. There is a problem of end.

  In addition, with this connector, it is necessary to connect the terminals of multiple connector leads so that they can be connected to the wiring board without being short-circuited by soldering. Therefore, it is possible to connect multiple connector leads without being short-circuited by soldering. There is also a problem that the distance between the connectors cannot be made narrower and the size of the entire connector cannot be reduced.

  The problem to be solved by the present invention is to provide a connector that can reduce the area required for mounting and can be miniaturized, and an electronic apparatus including the connector.

  The present invention includes a connector main body, a connector portion having a plurality of connector leads arranged at first intervals on the front and back surfaces of the connector main body, a relay substrate on which the connector portion is disposed, and one end A plurality of relay leads having a portion side arranged on the one surface of the relay substrate at the first interval and the other end side arranged on the other surface of the relay substrate at a second interval wider than the first interval. And a plurality of electrodes arranged on the other surface of the relay substrate at intervals wider than the second interval and connected to the other end of each of the plurality of relay leads. Connector.

  According to the present invention, the area required for mounting can be reduced by the plurality of electrodes arranged in a plane on the relay portion, and the connector can be miniaturized.

It is the perspective view which showed one Embodiment of the wristwatch type electronic device to which this invention is applied. It is a block part which showed the circuit structure of the electronic device shown by FIG. FIG. 3 is a diagram showing a connection structure between a circuit board and a display unit in the circuit configuration of the block diagram shown in FIG. 2. It is an expanded sectional view in the AA arrow of the connection structure of the circuit board shown in FIG. 3, and a display part. FIG. 5 is an enlarged perspective view showing the female connector shown in FIG. 4 in an exploded manner. It is the enlarged view which showed the back surface of the relay part of the female connector shown by FIG. 5A and 5B show a connector portion of the female connector shown in FIG. 5, wherein FIG. 5A is an enlarged perspective view showing the upper surface side, and FIG. 5B is an enlarged perspective view showing the lower surface side. The connector part of the male connector shown by FIG. 3 is shown, (a) is the expansion perspective view which showed the upper surface side, (b) is the expansion perspective view which showed the lower surface side. It is a perspective view of the portable information terminal which has a telephone function as an example of the electronic device to which this invention is applied.

Hereinafter, with reference to FIGS. 1-8, one Embodiment at the time of applying this invention to an electronic device is described.
As shown in FIG. 1, this electronic device is a wristwatch-type portable information terminal and includes a device case 1. The device case 1 is configured to be attached to the arm by a band B provided in the device case 1.

  The device case 1 includes a display unit 2, an input operation unit 3, and an output unit 4, as shown in FIG. The display unit 2 is a flat display panel such as a liquid crystal display panel or an EL (electroluminescence) display panel. The display unit 2 is provided in the device case 1 and is configured to display various information electro-optically. Yes.

  The input operation unit 3 is provided in the device case 1, and is a push button switch 3a that switches a function such as a mode by a pressing operation, a touch panel 3b that is provided on the surface of the display unit 2 and switches the display state of the display unit 2 by a touch operation, and the like. It is. The output unit 4 is a speaker that generates sound such as voice, a buzzer that generates alarm sound, or the like.

  As shown in FIG. 2, the circuit configuration of the electronic device includes a control unit 5 that performs overall control of the apparatus, a ROM (read only memory) that stores control data and a control program, and a control unit 5. A communication I / I that is a communication interface for performing communication between a memory unit 6 having a RAM (Random Access Memory) that provides a working memory space for a CPU (Central Processing Unit) and an external device. In addition to the F unit 7, the sensor unit 8 for detecting various types of information, and the GPS unit (global positioning system unit) 9 for calculating position information by communicating with an artificial satellite, The display unit 2, the input operation unit 3, and the output unit 4 are provided.

  In addition, the electronic device includes a circuit board 10 as shown in FIG. On this circuit board 10, a CPU 11 of the control unit 5, a memory circuit 12 of the memory unit 6, and a communication I / F circuit 13 of the communication I / F unit 7 are mounted. The circuit board 10 includes a push button switch 3 a of the input operation unit 3, a touch panel 3 b of the input operation unit 3, a speaker / buzzer 14 of the output unit 4, a GPS receiving circuit 15 of the GPS unit 9, and a sensor of the sensor unit 8. Each circuit 16 is electrically connected.

  Further, as shown in FIG. 3, the display unit 2 is electrically connected to the circuit board 10 by a flexible wiring board 20. In this case, the flexible wiring board 20 is formed by providing a plurality of wirings on a bendable film, and one end thereof is electrically connected to the display unit 2. A female connector 21 is mounted on the other end of the wiring board 20 in an electrically connected state. Further, a male connector 22 to which the female connector 21 of the wiring substrate 20 is electrically connected is mounted on the circuit board 10.

  As a result, the circuit board 10 and the display unit 2 are flexible as the male connector 22 of the circuit board 10 and the female connector 21 of the wiring board 20 are electrically connected as shown in FIG. It is configured to be electrically connected by the wiring board 20. In this case, a drive IC 23 that drives the display unit 2 is mounted on the wiring board 20.

  By the way, as shown in FIGS. 4 and 5, the female connector 21 mounted on the wiring board 20 includes a connector portion 24 to which the male connector 22 of the circuit board 10 is detachably attached, and the connector portion 24. And a relay unit 25 that is electrically connected to the wiring board 20. The connector section 24 includes a connector main body 26 and a plurality of connector leads 27 arranged on the front and back surfaces of the connector main body 26 at a predetermined interval S1, for example, at intervals of 0.1 mm pitch.

  As shown in FIGS. 5 and 7A, the connector main body 26 is formed in a substantially square plate shape by an insulating synthetic resin. On the upper surface (the surface in FIG. 7A) of the connector body 26, a recess 26a is provided over almost the entire area except for the outer periphery. An outer frame portion 26b is provided on the outer periphery of the concave portion 26a so as to protrude upward. Inside the outer frame portion 26b, an inner frame portion 26c is separated from the inner side of the outer frame portion 26 by a predetermined distance. The height is lower than that of the outer frame portion 26b.

  In addition, a partition portion 26d is provided in the inner frame portion 26c of the connector main body 26 as shown in FIGS. 5 and 7A. Thereby, the connector main body 26 is provided with two rectangular concave portions 26e in the inner frame portion 26c by the partition portion 26d. Further, the lower surface (the front surface in FIG. 7B) of the connector main body 26 is formed as a flat surface as shown in FIG. 7B.

  As shown in FIGS. 4 to 7, each of the plurality of connector leads 27 is formed by bending an elongated metal strip having conductivity such as copper, and has two recesses provided on the upper surface of the connector body 26. In the state where each end portion 27a side is arranged on 26e, it is arranged in two rows with the partition portion 26d of the two concave portions 26e as a boundary. That is, as shown in FIG. 7A, the one end portions 27a of the plurality of connector leads 27 are mutually bent in a concave shape along the inner surface of the two concave portions 26e of the connector body 26. Arranged without contact.

  Further, as shown in FIG. 7B, the other end portions 27b of the plurality of connector leads 27 are led to both end portions on the lower surface (the front surface in FIG. 7B) of the connector main body 26, and from these both end portions. It extends in a direction orthogonal to the longitudinal direction of the concave portion 26e toward the intermediate portion corresponding to the partition portion 26d of the two concave portions 26e, and is arranged along the longitudinal direction of the concave portion 26e in this state. In this case, each of the other end portions 27b of the plurality of connector leads 27 is, for example, 20 pieces without contacting each other with an intermediate portion corresponding to the partition portion 26d between the two concave portions 26e of the connector body 26 as a boundary. Arranged in two rows.

  As shown in FIGS. 4 to 6, the relay unit 25 includes a relay substrate 28 on which the connector unit 24 is disposed, a plurality of relay leads 29 provided on the upper surface 28 a and the lower surface 28 b of the relay substrate 28, and the relay substrate. And a plurality of electrodes 30 arranged in a matrix on the lower surface 28b of 28. The relay board 28 is a double-sided board, is formed in a rectangular flat plate shape slightly larger than the outer shape of the connector main body 26, and is soldered to a plurality of terminals 20 a formed on the wiring board 20 via solder balls 32. It is configured as follows.

  As shown in FIG. 5, the plurality of relay leads 29 are formed by patterning a metal foil such as copper on the upper surface 28 a and the lower surface 28 b of the relay substrate 28, and a partition portion between the two recesses 26 e of the connector body 26. For example, 20 pieces are arranged in two rows with the intermediate portion of the relay board 28 corresponding to 26d as a boundary. Each one end portion 29a side of the plurality of relay leads 29 is arranged in two rows on the upper surface 28a of the relay substrate 28 on which the connector portion 24 is arranged at the same interval S2 (= S1) as the interval S1 of the plurality of connector leads 27. ing. That is, if the distance S1 between the connector leads 27 is 0.1 mm, the distance S2 between the one end portions 29a of the relay lead 29 is also set to 0.1 mm.

  Thereby, each one end portion 29a of the plurality of relay leads 29 corresponds to each other end portion 27b of the plurality of connector leads 27 arranged on the lower surface of the connector portion 24, as shown in FIG. It is configured. The other end portions 29b of the plurality of relay leads 29 are led from the upper surface 28a to the lower surface 28b of the relay substrate 28 through the through holes 31, respectively.

  As shown in FIG. 5, the distance S3 on the other end 29b side of the plurality of relay leads 29 is gradually higher than the distance S2 on the one end 29a side of the plurality of relay leads 29 on the upper surface 28a of the relay board 28. (S3> S2 = S1), and the widened portions are respectively guided to the lower surface 28b of the relay board 28 by the through holes 31.

  The other end portions 29b of the plurality of relay leads 29 guided to the lower surface 28b of the relay substrate 28 are spaced at intervals S3 wider than the intervals S2 between the end portions 29a of the plurality of relay leads 29, as shown in FIG. (> S2 = S1), for example, is configured to be connected to the plurality of electrodes 30 provided on the lower surface 28b of the relay substrate 28 at intervals of 0.2 mm.

  As shown in FIGS. 4 and 6, the plurality of electrodes 30 are planarly arranged on the lower surface 28 b of the relay substrate 28 in a matrix of, for example, 4 columns × 10 columns. The plurality of electrodes 30 are all arranged at the same interval S4, for example. That is, the plurality of electrodes 30 have a distance S4 between them which can be joined to the plurality of terminals 20a formed on the wiring board 20 without being short-circuited by the solder balls 32 with solder, for example, a pitch of 0.4 mm. It is formed wider than the interval S3 on the other end 29b side of the plurality of relay leads 29 (S4> S3).

  Although FIG. 6 shows the case where the plurality of electrodes 30 are all arranged in a matrix at the same interval S4, the present invention is not limited to this, and two adjacent electrodes 30 are arranged. As long as the distance between the electrodes 30 can be joined without being short-circuited by solder, the arrangement intervals of the electrodes 30 may be different.

  Thereby, each other end portion 29b of the plurality of relay leads 29 is formed such that the interval S3 is narrower than the interval S4 of the plurality of electrodes 30 (S3 <S4), as shown in FIGS. Each of the one end portions 29a and the plurality of connector leads 27 in the plurality of relay leads 29 has a spacing S2 and S1 narrower than a spacing S3 of the other end portions 29b in the plurality of relay leads 29 (S2 = S1 <S3). In addition, the gap is further narrower than the interval S4 between the plurality of electrodes 30 (S2 = S1 <S3 <S4).

  In this case, as shown in FIG. 6, for example, a plurality of electrodes 30 are arranged in a matrix of 4 columns × 10 columns, so that a total of 40 electrodes 30 are arranged. The arrangement region of the plurality of electrodes 30 is formed to be the same as or smaller than the size of the lower surface of the connector body 26. That is, the array region of the plurality of electrodes 30 has, for example, a length L1 in the vertical direction (vertical direction in FIG. 6) of about 2.0 mm and a length L2 in the horizontal direction (horizontal direction in FIG. 6). The length is about 4.4 mm.

  In addition, among the other end portions 29b of the plurality of relay leads 29 connected to the plurality of electrodes 30, a part of the other end portions 29a alternately positioned along the arrangement direction is, as shown in FIG. It is connected to the electrode 30 located on the outer peripheral side of the plurality of electrodes 30. In addition, among the other end portions 29 b of the relay lead 29, the other part of the other end portions 29 a that are alternately positioned along the arrangement direction contact the electrodes 30 positioned on the outer peripheral side of the plurality of electrodes 30. It passes through without being connected, and is connected to the electrode 30 located on the inner peripheral side of the plurality of electrodes 30.

  As shown in FIG. 4, the connector part 24 and the relay part 25 are arranged on the upper surface 28 a of the plurality of connector leads 27 and the relay board 28 arranged on the lower surface of the connector body 26 by the anisotropic conductive adhesive layer 33. The plurality of relay leads 29 are joined in a state where each one end portion 29a is electrically connected. The anisotropic conductive adhesive layer 33 is obtained by mixing conductive particles such as metal particles in an insulating material such as an epoxy resin, and is configured to be conductive in the thickness direction and not conductive in the surface direction. .

  In this case, as shown in FIGS. 4 and 5, the connector portion 24 and the relay portion 25 are anisotropic in that the other end portions 27 b of the plurality of connector leads 27 and the one end portions 29 a of the plurality of relay leads 29 are anisotropic. When connected by the conductive adhesive layer 33, the connector lead 27 and the relay lead 29 facing each other are electrically connected to each other, and the connector lead 27 and the relay lead 29 adjacent to each other are not electrically connected.

  Thus, the female connector 21 in which the connector portion 24 is mounted on the relay portion 25 is configured in a state where the plurality of connector leads 27 of the connector portion 24 and the plurality of relay leads 29 of the relay portion 25 are connected. As shown in FIG. 4, the female connector 21 includes a solder ball 32 provided on each of the plurality of electrodes 30 arranged in the relay portion 25, and each of the plurality of electrodes 30 of the relay portion 25 and a flexible wiring board. Each of the plurality of terminals 20 a formed on 20 is configured to be soldered to the wiring board 20 in a state where the terminals 20 a are electrically connected by the solder balls 32.

  On the other hand, as shown in FIGS. 8A and 8B, the male connector 22 has a configuration in which the connector portion 34 is different from the connector portion 24 of the female connector 21, and the connector portion 34 is the female connector 21. The connector portion 24 has a convex shape that fits into the concave portion 26e, and the other configuration is the same as that of the female connector 21. That is, the connector portion 34 of the male connector 22 is similar to the female connector 21 and includes a connector main body 35 and a plurality of connectors arranged on the upper and lower surfaces of the connector main body 35 at a predetermined interval S1, for example, 0.1 mm pitch. Connector lead 36.

  As shown in FIGS. 8A and 8B, the connector main body 35 is formed in a rectangular plate shape having the same size as the connector main body 26 of the female connector 21. On the upper surface (the surface in FIG. 8A) of the connector main body 35, a recess 35a is provided over almost the entire area except for the outer periphery thereof. A frame-like portion 35b is provided in the recess 35a. In this frame-like part 35b, for example, 20 pieces are arranged in two rows with each end 36a side of the plurality of connector leads 36 protruding.

  In this case, as shown in FIGS. 7 and 8, the frame-shaped portion 35 b has an inner periphery that is substantially the same size as the outer periphery of the inner frame portion 26 c of the female connector 21, and the outer frame portion 35 b of the female connector 21. And the inner frame portion 26c are detachably inserted. The one end portions 36a of the plurality of connector leads 36 protruding in two rows into the recesses 35a are inserted into the two recesses 26e of the female connector 21 and are inserted into the two recesses 26e of the female connector 21. The plurality of connector leads 27 provided on the respective contact portions 27a are in contact with each other and are electrically connected to each other.

  Also in this case, the other end portions 36b of the plurality of connector leads 36 arranged on the lower surface of the connector main body 35 are connected to the plurality of female connectors 21 as shown in FIGS. 7B and 8B. Like the other end portions 27b of the connector leads 27, they are arranged in two rows at the same interval S1. In the male connector 22, similarly to the female connector 21, a plurality of electrodes 30 arranged on the lower surface 28 b of the relay board 28 are soldered to a plurality of terminals (not shown) of the circuit board 10 by solder balls 32. It is comprised so that it may join.

  As a result, the female connector 21 and the male connector 22 are connected to each other between the outer frame portion 26b and the inner frame portion 226c of the connector portion 24 of the female connector 21, as shown in FIGS. The frame-like portion 35b of the connector portion 34 of the 22 is fitted, and the connector leads 27 and 35 are engaged with each other to become conductive, so that they can be detachably mounted in an electrically connected state. It is configured.

Next, the operation of the female connector 21 and the male connector 22 in such an electronic device will be described.
First, when the female connector 21 is manufactured, the connector part 24 and the relay part 25 are separately manufactured in advance. When manufacturing the connector part 24, the connector main body 26 is injection-molded with a synthetic resin. At this time, the plurality of connector leads 27 are formed integrally with the connector body 26 by insert molding.

  In this case, a plurality of connector leads 27 are previously formed into a predetermined shape by bending using a press or the like, and the plurality of connector leads 27 are placed in a molding die, and in this state, Inject synthetic resin into As a result, a connector portion 24 in which a plurality of connector leads 27 are integrally provided on the connector body 26 is formed.

  On the other hand, when the relay portion 25 is manufactured, first, a plurality of through holes for through holes are formed at predetermined locations on the relay substrate 28. In this state, a metal thin film layer such as copper is formed on the upper surface 28a and the lower surface 28b of the relay substrate 28 by vapor deposition or sputtering, and a metal thin film layer is also formed on the inner surfaces of the through holes for the plurality of through holes. In this state, the metal thin film layer is patterned by etching.

  Thus, a plurality of relay leads 29 are formed on the upper surface 28a and the lower surface 28b of the relay substrate 28, and a plurality of electrodes 30 are formed on the lower surface 28b of the relay substrate 28. The plurality of through holes 32 are formed in a state in which the one end portion 29a side and the other end portion 29b side of the plurality of relay leads 29 are respectively connected. The

  Then, the connector part 24 is joined to the relay part 25. At this time, an anisotropic conductive adhesive layer 33 is provided on one of the upper surface 28a of the relay board 28 and the lower surface of the connector body 26, and each of the plurality of connector leads 27 arranged on the lower surface of the connector body 26 in this state. The end portion 27b and the one end portions 29a of the plurality of relay leads 29 arranged on the upper surface 28a of the relay substrate 28 are made to correspond to each other. In this state, the connector main body 26 is joined to the relay substrate 28 by the anisotropic conductive adhesive layer 33.

  As a result, the other end portions 27b of the plurality of connector leads 27 of the connector portion 24 and the one end portions 29a of the plurality of relay leads 29 of the relay portion 25 are electrically connected. At this time, even if the interval S1 between the plurality of connector leads 27 and the interval S2 between the one end portions 29a of the plurality of relay leads 29 are narrow intervals that cannot be connected by solder, for example, intervals of 0, 1 mm pitch, The other end portions 27 b of the plurality of connector leads 27 and the one end portions 29 a of the plurality of relay leads 29 can be electrically connected by the anisotropic conductive adhesive layer 33.

  That is, the anisotropic conductive adhesive layer 33 has a configuration in which, when pressure is applied in the thickness direction, it conducts in the thickness direction and does not conduct in the surface direction, and pressure is applied in the thickness direction to conduct in the thickness direction. It is fixed in the state. At this time, the minimum interval between the leads can be set to about 10 to 20 μm, and the interval can be sufficiently narrower than the interval that can be connected without causing a short circuit by solder.

  Thereby, even when the pitch between the other end portions 27b of the plurality of connector leads 27 and the one end 29a of the plurality of relay leads 29 is 0.1 mm, when connected by the anisotropic conductive adhesive layer 33, The connector lead 27 and the relay lead 29 that are opposed to each other in the vertical direction are electrically connected to each other, and the connector lead 27 and the relay lead 29 adjacent to the connector lead 27 and the relay lead 29 are not electrically connected. In this state, the relay portion 25 and the connector portion 24 are joined by the anisotropic conductive adhesive layer 33. Thereby, the female connector 21 is manufactured.

  When connecting the female connector 21 to the flexible wiring board 20, first, solder balls 32 are respectively formed on the plurality of electrodes 30 of the relay portion 25. Then, these solder balls 32 are arranged in correspondence with the plurality of terminals 20a formed on the wiring board 20, and the solder balls 32 are reflowed in this state. As a result, the plurality of electrodes 30 of the relay portion 25 and the plurality of terminals 20 a of the wiring substrate 20 are soldered by the solder balls 32.

  In this case, the female connector 21 has a wide interval in which the distance S4 between the plurality of electrodes 30 of the relay portion 25 can be connected to the plurality of terminals 20a of the wiring board 20 by the solder balls 32 without being short-circuited by solder, for example, 0.4 mm. Even at the pitch interval, the arrangement area of the plurality of electrodes 30 can be reduced by arranging the plurality of electrodes 30 in a matrix form of a plurality of rows and columns on the lower surface 28b of the relay substrate 28. it can.

  Further, the distance S3 on the other end 29b side of the plurality of relay leads 29 connected to the plurality of electrodes 30 is narrower than the distance S4 of the plurality of electrodes 30 (S3 <S4), for example, 0.2 mm pitch. Can be an interval. Further, the interval S2 on the one end portion 29a side of the plurality of relay leads 29 is narrower than the interval S3 on the other end portion 29b side of the plurality of relay leads 29 (S1 = S2 <S3), for example, 0.1 mm pitch Can be formed at intervals of Thereby, the interval S1 between the plurality of connector leads 27 of the connector portion 24 can be set to the same interval as the interval S2 between the one end portions 29a of the plurality of relay leads 29.

  As described above, if the interval S1 between the plurality of connector leads 27 and the interval S2 on the one end portion 29a side of the plurality of relay leads 29 are narrowed to some extent, a short circuit occurs in solder bonding, and the connection by solder cannot be performed. According to the anisotropic conductive adhesive layer 33, each of the other end portions 27b of the plurality of connector leads 27 and the plurality of relay leads 29 even at such a narrow interval that a short-circuit occurs in solder joining. These one end portions 29a can be connected without causing a short circuit. Thereby, female connector 21 can be constituted more compactly than the conventional one. In connection with this, the wiring board 20 can also be comprised compactly.

  On the other hand, the male connector 22 is configured by joining the connector portion 34 to the relay portion 25 with the anisotropic conductive adhesive layer 33, similarly to the female connector 21. Further, the male connector 22 has solder balls 32 formed on the plurality of electrodes 30 of the relay portion 25, and the solder balls 32 connect the plurality of electrodes 30 of the relay portion 25 to a plurality of terminals (not shown) of the circuit board 10. To be mounted on the circuit board 10. Similar to the female connector 21, the male connector 22 can be configured compactly. Accordingly, the mounting area for the circuit board 10 can be reduced.

  Thus, when connecting the flexible wiring board 20 with the female connector 21 mounted on the circuit board 10 with the male connector 22 mounted thereon, the wiring board 20 is connected to the display unit 2 in advance. Then, the female connector 21 of the wiring board 20 is attached to the male connector 22 of the circuit board 10. Thereby, the circuit board 10 and the display part 2 are electrically connected by the flexible wiring board 20.

  At this time, the frame-shaped portion 35b of the connector portion 34 of the male connector 22 is fitted between the outer frame portion 26b and the inner frame portion 26c of the connector portion 24 of the female connector 21, and the female connector 21 The plurality of connector leads 27 and the plurality of connector leads 36 of the male connector 22 are engaged with each other to be conducted. Thereby, the female connector 21 and the male connector 22 are attached to each other in an electrically connected state.

  As described above, according to the female connector 21 of the electronic apparatus, the connector part 24 in which the plurality of connector leads 27 are arranged at the predetermined interval S1 on the upper and lower surfaces of the connector body 26, and the connector part 24 are arranged. One end portions 29a of the plurality of relay leads 29 are arranged at the same interval S2 as the plurality of connector leads 27 on the upper surface 28a of the relay substrate 28, and the other end portions 29b of the plurality of relay leads 29 are arranged on the lower surface 28b of the relay substrate 28. A plurality of electrodes 30 are arranged in a plurality of rows and columns on the lower surface 28b of the relay board 28 at a distance S4 wider than each other end portion 29b side of the plurality of relay leads 29. And a relay section 25 to which the other end portions 29b of the plurality of relay leads 29 are respectively connected in a planar manner. It can be instrumentation, and can reduce the size of its area.

  In other words, in the female connector 21 of this electronic device, the relay board 25 can be mounted on the wiring board 20 in the area of the relay board 28 by the plurality of electrodes 30 arranged in a plane on the lower surface 28b of the relay board 28. In addition, since the interval S1 between the plurality of connector leads 27 arranged in the connector main body 26 by the plurality of relay leads 29 of the relay unit 25 can be made smaller than the interval S4 between the plurality of electrodes 30, the entire female connector 21 can be provided. Thus, the female connector 21 can be reduced in size.

  In this case, the plurality of electrodes 30 of the relay portion 25 are arranged at intervals S4 that can be joined to the plurality of terminals 20a of the wiring board 20 by the solder balls 32, and the other end portions 29b of the plurality of relay leads 29 are arranged at the plurality of ends. The plurality of connector leads 27 of the connector part 24 are arranged at a distance narrower than the distance S3 on the other end part 29b side of the plurality of relay leads 29. By arranging in S1 (<S3), the connector part 24 can be comprised compactly and the size reduction of the female connector 21 whole can be achieved in connection with this.

  Further, in this female connector 21, a plurality of, for example, 40, a plurality of electrodes 30 are present because the plurality of electrodes 30 of the relay portion 25 are arranged in a matrix in a plurality of rows and columns. In addition, the plurality of electrodes 30 can be arranged in a compact manner, whereby the arrangement area that is the arrangement region of the plurality of electrodes 30 can be reduced.

  In this case, the other end portions 29b side of the plurality of relay leads 29 of the relay portion 25 are arranged at intervals S3 wider than the intervals S2 on the one end portions 29a side, and are alternately positioned along the arrangement direction. Some other end portions 29 b are connected to the electrodes 30 located on the outer peripheral side of the plurality of electrodes 30, and other part other end portions 29 b are in contact with each electrode 30 located on the outer peripheral side of the plurality of electrodes 30. Even if the plurality of electrodes 30 are arranged in a matrix in a plurality of rows and columns in a plane, the plurality of electrodes 30 are connected to each electrode 30 positioned on the inner peripheral side of the plurality of electrodes 30 without passing through the plurality of electrodes 30. The relay lead 29 can be reliably and satisfactorily connected.

  In the female connector 21, the other end portions 27 b of the plurality of connector leads 27 and the one end portions 29 a of the plurality of relay leads 29 of the relay portion 25 are arranged on the lower surface of the connector main body 26 of the connector portion 24. By being electrically connected by the anisotropic conductive adhesive layer 33, the distance S1 between the other end portions 27b of the plurality of connector leads 27 and the distance S2 between the one end portions 29a of the plurality of relay leads 29 are the same. Even if it is formed at a narrow interval (S1 = S2 <S3 <S4), the other end portions 27b of the plurality of connector leads 27 and the one end portions 29a of the plurality of relay leads 29 are connected accurately and satisfactorily. be able to.

  That is, the anisotropic conductive adhesive layer 33 is configured to conduct in the thickness direction and not in the surface direction when pressure is applied in the thickness direction. When one end 29a of the plurality of relay leads 29 is connected by the anisotropic conductive adhesive layer 33, the connector lead 27 and the relay lead 29 facing each other can be electrically connected to each other, and the connector adjacent thereto The lead 27 and the relay lead 29 can be connected so as not to conduct.

  For this reason, in this female connector 21, the distance S1 between the other end portions 27b of the plurality of connector leads 27 and the distance S2 between the one end portions 29a of the plurality of relay leads 29 are reduced so that the connection by soldering is not possible. The anisotropic conductive adhesive layer 33 enables the other end portions 27b of the plurality of connector leads 27 and the one end portions 29a of the plurality of relay leads 29 to be accurately and satisfactorily connected.

  The relay board 28 of the female connector 21 is a double-sided board in which a plurality of relay leads 29 are connected to the upper surface 28a and the lower surface 28b through the through holes 31, respectively. Therefore, the thickness of the relay board 28 can be reduced, and this also makes it possible to reduce the thickness and size of the entire connector.

  In addition, the male connector 22 of this electronic apparatus has a configuration in which the connector portion 34 is different from the connector portion 24 of the female connector 21 and the other configuration is the same, and thus has the same effects as the female connector 21. By detachably attaching to the female connector, electrical connection can be made easily and easily.

  That is, the male connector 22 is configured such that the frame-shaped portion 35b of the connector portion 34 is fitted between the outer frame portion 26b and the inner frame portion 26c of the connector portion 24 of the female connector 21, thereby The plurality of connector leads 36 can be brought into engagement with the plurality of connector leads 27 of the female connector 21 so that the male connector 22 is electrically connected to the female connector 21 in a reliable manner. Can be worn well.

  Furthermore, the electronic device can be configured in a compact manner by mounting the female connector 21 on the wiring substrate 20 connected to the display unit 2. That is, the female connector 21 can be configured more compactly than the conventional one, and accordingly, the wiring board 20 can be configured compactly.

  Further, in this electronic apparatus, since the male connector 22 is mounted on the circuit board 10, the mounting area of the male connector 22 on the circuit board 10 can be reduced. That is, since the male connector 22 can be configured more compactly than the conventional connector, like the female connector 21, the mounting area of the male connector 22 on the circuit board 10 can be reduced accordingly. .

  In the above-described embodiment, the case where the relay substrate 28 of the relay unit 25 is formed by a single double-sided substrate has been described. However, the present invention is not limited to this. It may be a multilayer substrate in which a plurality of substrates provided with relay leads are laminated. In this case, the plurality of relay leads 29 can be directly connected to the plurality of electrodes by through holes, respectively.

  In the above-described embodiment, the case where the female connector 21 is provided on the wiring board 20 and the male connector 22 is provided on the circuit board 10 is described. However, the present invention is not limited thereto, and the female connector 21 is provided on the circuit board 10. Alternatively, the male connector 22 may be provided on the wiring board 20.

  In the above-described embodiment, the case where the circuit board 10 and the display unit 2 are connected has been described. However, the present invention is not limited to this. For example, the circuit board 10 and the push button switch 3a of the input operation unit 3 are connected. And the touch panel 3b of the input operation unit 3, the connection of the circuit board 10 and the speaker / buzzer 14 of the output unit 4, the connection of the circuit board 10 and the GPS receiving circuit 15 of the GPS unit 9, and the circuit board 10 and the sensor. The present invention can also be applied to connection with the sensor circuit 16 of the unit 8.

  Furthermore, in the above-described embodiment, the case where the present invention is applied to a wristwatch-type electronic device has been described. However, the present invention is not limited to this, and for example, as shown in FIG. 9, the present invention is also applicable to an electronic device such as a portable information terminal having a telephone function. can do. Similar to the above-described embodiment, the electronic device may have a configuration in which the device case 40 includes the display unit 2, the input operation unit 3, the output unit 4, and the circuit board 10.

  Also in this case, the electronic device is provided with one of the female connector 21 and the male connector 22 on the wiring board 20 when the display unit 2 is connected to the circuit board 10 with the wiring board 20 as in the above-described embodiment. The circuit board 10 may have a configuration in which the other of the female connector 21 and the male connector 22 is provided.

  Further, in the above-described embodiment and its modified examples, the case where the present invention is applied to a wristwatch-type electronic device and an electronic device such as a portable information terminal having a telephone function has been described. It can also be applied to equipment.

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)
According to the first aspect of the present invention, there is provided a connector portion having a connector main body, and a plurality of connector leads arranged at first intervals on the front and back surfaces of the connector main body, and the connector portion is disposed on one surface. The relay substrate and one end side are arranged on the one surface of the relay substrate at the first interval, and the other end side is arranged on the other surface of the relay substrate at a second interval wider than the first interval. A plurality of relay leads, and a plurality of electrodes arranged on the other surface of the relay substrate at intervals wider than the second interval and connected to the other end of each of the plurality of relay leads. It is a connector characterized by having.

  According to a second aspect of the present invention, in the connector according to the first aspect, the two adjacent electrodes are arranged at positions where they can be joined together without being short-circuited by solder, and the two adjacent connector leads Is a connector that is arranged at a position where it cannot be joined without being short-circuited to each other by solder.

  The invention according to claim 3 is the connector according to claim 1 or 2, wherein each of the plurality of connector leads arranged on the back surface of the connector portion and the one surface of the relay substrate are arranged on the one surface. The connector is characterized in that the one end side of each of the plurality of relay leads is electrically connected via an anisotropic conductive adhesive layer.

  According to a fourth aspect of the present invention, in the connector according to any one of the first to third aspects, the relay board has the plurality of relay leads on the one surface and the other surface through through holes, respectively. The connector is a connected double-sided board.

The invention according to claim 5 is the connector according to any one of claims 1 to 3,
The relay board is a connector that is a multilayer board in which a plurality of boards each having the plurality of relay leads provided separately according to the arrangement of the plurality of electrodes is laminated.

  The invention according to claim 6 is an electronic apparatus comprising the connector according to any one of claims 1 to 5.

  According to a seventh aspect of the present invention, in the electronic device according to the sixth aspect, as the connector, a first connector having a female connector in which the plurality of connector leads are arranged on the surface of the connector body; A second connector having a male connector in which the plurality of connector leads are arranged on the surface of the connector body, the first wiring board on which the first connector is mounted, and the second connector being mounted A second wiring board, wherein the female connector of the first connector and the male connector of the second connector are fitted together, and the first wiring board and the second wiring board are An electronic device is characterized by being electrically connected.

DESCRIPTION OF SYMBOLS 1, 40 Device case 2 Display part 3 Input operation part 4 Output part 10 Circuit board 20 Wiring board 20a Terminal 21 Female connector 22 Male connector 24, 34 Connector part 25 Relay part 26, 35 Connector main body 27, 36 Connector lead 27a One end portion 27b The other end portion 28 Relay substrate 28a Upper surface 28b Lower surface 29 Relay lead 29a One end portion 29b The other end portion 30 Electrode 31 Through hole 32 Solder ball 33 Anisotropic conductive adhesive layer S1, S2, S3, S4 Interval

Claims (7)

A connector body having a connector body, and a plurality of connector leads arranged at first intervals on the front and back surfaces of the connector body;
A relay board on which the connector part is disposed;
A plurality of relays having one end portion arranged on the one surface of the relay substrate at the first interval and the other end portion arranged on the other surface of the relay substrate at a second interval wider than the first interval. Lead and
A plurality of electrodes arranged on the other surface of the relay substrate at an interval wider than the second interval and connected to the other end of each of the plurality of relay leads;
A connector comprising: The connector according to claim 1,
Two electrodes adjacent to each other are arranged at positions where they can be joined without being short-circuited by solder,
The two connector leads adjacent to each other are arranged at positions where they cannot be joined without being short-circuited with each other by solder. The connector according to claim 1 or 2,
Each of the plurality of connector leads arranged on the back surface of the connector portion and the one end side of each of the plurality of relay leads arranged on the one surface of the relay substrate are anisotropically conductive. A connector characterized by being electrically connected via an adhesive layer. The connector according to any one of claims 1 to 3,
The relay board is a double-sided board in which the plurality of relay leads are connected to the one surface and the other surface through through holes, respectively. The connector according to any one of claims 1 to 3,
The connector, wherein the relay board is a multilayer board in which a plurality of boards on which the plurality of relay leads are individually provided according to the arrangement of the plurality of electrodes are laminated.   An electronic apparatus comprising the connector according to any one of claims 1 to 5. The electronic device according to claim 6,
As the connector, a first connector having a female connector in which the plurality of connector leads are arranged on the surface of the connector body, and a male connector in which the plurality of connector leads are arranged on the surface of the connector body. A second connector having,
A first wiring board on which the first connector is mounted; and a second wiring board on which the second connector is mounted;
The female connector of the first connector and the male connector of the second connector are fitted, and the first wiring board and the second wiring board are electrically connected. Electronic equipment.

Images