JP2015191949A - Electronic device - Google Patents

Abstract

An apparatus capable of holding a ground conductive member in contact with a first substrate and a second substrate in a configuration in which a first substrate and a second substrate are arranged orthogonally. The apparatus is arranged in an apparatus casing, a control board provided with a control circuit for controlling the operation of the apparatus, and an apparatus casing. The control board 90 and the communication board 70 are brought into contact with the control board 90 and the rear surface 71 of the communication board 70 on the connector 94 side. And a ground conducting member 80 for conducting the current. The control board 90 is arranged so that the front and back surfaces thereof are parallel to the mounting surface of the apparatus housing 21. The communication board 70 is arranged so that the rear surface 71 is orthogonal to the front and back surfaces of the control board 90. The device housing 21 has a front surface 136 that comes into contact with the ground conducting member 80 from the side opposite to the control board 90. [Selection] Figure 6

Description

  The present invention relates to an electronic device having a first substrate and a second substrate, and a ground conducting member that conducts between the first substrate and the second substrate.

  2. Description of the Related Art Conventionally, an electronic device including a first substrate provided with a control circuit for controlling the operation of the device and a second substrate provided with a circuit different from the control circuit is known. In an apparatus that accommodates two types of substrates in the apparatus housing, it is desired that the apparatus does not increase in size (Patent Documents 1 and 2).

JP-A-8-6472 JP 2001-260467 A

  If the first substrate and the second substrate are not arranged to face each other but are arranged to be orthogonal to each other, there is a problem that the ground conductive member cannot be sandwiched between the first substrate and the second substrate. Occurs.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a ground conductive member as a first substrate in a configuration in which a first substrate and a second substrate are arranged orthogonally. Another object of the present invention is to provide means that can be held in contact with the second substrate.

  (1) An electronic device according to the present invention is disposed in a device housing, a first substrate provided in the device housing, provided with a control circuit for controlling the operation of the device, and the device housing. The second substrate electrically connected to the first substrate via a connector, and the first substrate and the first surface of the second substrate on the connector side, thereby contacting the first substrate. And a ground conducting member for conducting the second substrate. The second substrate is arranged so that the first surface is orthogonal to the front and back surfaces of the first substrate. The apparatus housing includes a contact portion that contacts the ground conductive member from the side opposite to the second substrate.

  As a result, the ground conducting member is sandwiched between the contact portion and the second substrate.

  (2) The first substrate may be arranged such that the front and back surfaces thereof are parallel to the mounting surface of the apparatus housing.

  (3) The apparatus housing has a shield metal plate arranged in parallel with the first substrate, and the contact portion is formed by bending a part of the shield metal plate. It may be.

  Thereby, a contact part can be comprised integrally with the sheet metal for shielding.

  (4) The apparatus housing includes a support member that supports the shield sheet metal, and the support member is in contact with a second surface of the second substrate opposite to the first surface. You may have.

  When the backup unit comes into contact with the second surface of the second substrate, the second substrate is prevented from coming off the first substrate.

  (5) The apparatus housing includes a support member that supports the shield metal plate, and the support member is spaced apart from a second surface of the second substrate opposite to the first surface. An opposing backup portion is provided, and the distance between the second surface of the second substrate and the backup portion is smaller than the amount of movement of the second substrate necessary for the second substrate to be detached from the connector. May be.

  The back-up unit contacts the second surface of the second substrate before the second substrate is detached from the connector, thereby preventing the second substrate from coming off the first substrate.

  (6) The apparatus housing may include a first covering member that covers the first substrate, and the contact portion may be provided on the first covering member.

  Thereby, a contact part can be comprised integrally with a 1st coating | coated member.

  (7) The first covering member may have a sandwiching portion that sandwiches the ground conducting member with the first substrate.

  (8) The apparatus housing includes a second covering member that covers the second substrate, and the second covering member contacts the second surface of the second substrate opposite to the first surface. You may have a backup part which touches.

  When the backup unit comes into contact with the second surface of the second substrate, the second substrate is prevented from coming off the first substrate.

  (9) The apparatus housing includes a second covering member that covers the second substrate, and the second covering member is spaced from the second surface of the second substrate opposite to the first surface. And a backup portion facing each other with a gap between the second surface of the second substrate and the backup portion, the amount of movement of the second substrate necessary for the second substrate to be detached from the connector May be smaller.

  The back-up unit contacts the second surface of the second substrate before the second substrate is detached from the connector, thereby preventing the second substrate from coming off the first substrate.

  (10) The second substrate may include a communication circuit that performs wireless communication with an external device.

  According to the present invention, the ground conductive member can be held in contact with the first substrate and the second substrate in a configuration in which the first substrate and the second substrate are arranged orthogonally.

FIG. 1 is an external perspective view of the multifunction machine 10. FIG. 2 is a longitudinal sectional view schematically showing the internal configuration of the printer unit 11. FIG. 3 is a plan view of the printer unit 11. FIG. 4 is a diagram in which the second cover 130 and the panel unit 110 are removed from FIG. 3. 5 is a cross-sectional view taken along the line VV in FIG. 6A is an enlarged view of a portion surrounded by a broken line in FIG. 5, and FIG. 6B is a diagram in which a first cover 120 is added to FIG. 6A. 7A is a perspective view of the periphery of the communication board 70 in the printer unit 11, and FIG. 7B is a view in which the first cover 120 is added to FIG. 7A. FIG. 8 is a view in which a first cover 120 is added to FIG. FIG. 9 is a diagram in which the control board 90 is removed from FIG. FIG. 10A is a perspective view of the periphery of the communication board 70 including the communication board 70, the connector 94, the ground conductive member 80, the shield metal plate 93, and the support plate 109, and FIG. It is the figure which showed the part similar to FIG. 6 (B) in FIG.

  Hereinafter, embodiments of the present invention will be described. The embodiment described below is an example of the present invention, and the embodiment may be appropriately changed without departing from the gist of the present invention. In the following description, as shown in FIG. 1, a vertical direction 7 is defined with reference to a state where the multifunction machine 10 is installed so as to be usable. The front-rear direction 8 is defined with the side on which the panel unit 110 is provided as the front surface (front surface) of the multifunction machine 10. Further, a left-right direction 9 is defined when the multifunction machine 10 is viewed from the front side. The up-down direction 7, the front-rear direction 8, and the left-right direction 9 are orthogonal to each other.

[Outline of MFP 10]
As shown in FIG. 1, the multifunction machine 10 (an example of an electronic apparatus according to the present invention) includes a device housing 21 having a substantially rectangular parallelepiped appearance. The multifunction machine 10 includes a control board 90 (an example of a first board of the present invention), a communication board 70 (an example of a second board of the present invention), a ground conductive member 80, and a panel unit 110, which will be described later. Yes. The control board 90, the communication board 70, and the ground conducting member 80 are disposed inside the apparatus housing 21, and the panel unit 110 is disposed on the front side of the apparatus housing 21.

  In addition, the multifunction device 10 includes a scanner unit 12 that acquires an image data by reading an image recorded on a document such as a recording sheet by an image sensor (not shown). In addition, the multifunction machine 10 includes a printer unit 11 that records an image on a sheet 6 (see FIG. 2) such as a recording sheet housed in a sheet feeding cassette 30 at a lower portion thereof. The multifunction machine 10 has functions such as printing, scanning, copying, and wireless communication with an external device.

  Although the scanner unit 12 is configured as a so-called flatbed scanner, a detailed description of the internal configuration of the scanner unit 12 is omitted here. Note that the platen glass, the image sensor, and the like constituting the scanner unit 12 are arranged in the upper part of the inside of the apparatus housing 21.

  As shown in FIG. 2, the printer unit 11 includes a paper feed cassette 30, a paper feed unit 40, a transport unit 50, a recording unit 60, and the like. It arrange | positions in the part except the upper part in which the part 12 was provided.

[Paper cassette 30]
As shown in FIG. 2, the paper feed cassette 30 includes a main tray 31 that holds the sheet 6 before image recording, and a paper discharge tray 32 that holds the sheet 6 after image recording. As shown in FIG. 1, the paper feed cassette 30 is disposed at the lower part of the apparatus housing 21. The paper feed cassette 30 can be inserted and removed through an opening 22 provided in the front surface of the apparatus housing 21.

[Feeding unit 40]
As shown in FIG. 2, the feeding unit 40 includes a support shaft 41 that is rotatably supported by a frame (not shown), an arm 42 whose one end is rotatably supported by the support shaft 41, and an arm 42. And a feed roller 43 rotatably supported at the other end of the roller. The arm 42 is provided with a plurality of gears 44 that transmit the rotation of the support shaft 41 to the feeding roller 43. When the support shaft 41 is rotated by a drive motor (not shown), the feeding roller 43 rotates and the sheet 6 is sent out to the conveyance path 51.

[Conveyor 50]
As shown in FIG. 2, the transport unit 50 includes a guide member (not shown) and a platen 54 that configure the transport path 51, a transport roller pair 55, and a paper discharge roller pair 56. The conveyance path 51 includes a curved path 52 indicated by a one-dot chain line and a straight path 53 indicated by a two-dot chain line. The curved path 52 extends curvedly upward with the upper end of the rear end of the main tray 31 in the front-rear direction 8 as the base end. The straight path 53 extends linearly from the end of the curved path 52 toward the front. The platen 54 is disposed on the upper side of the rear portion of the sheet feeding cassette 30 in the front-rear direction 8 and constitutes a part of the lower surface of the straight path 53. An image is recorded on the sheet 6 on the platen 54.

  The conveyance roller pair 55 is disposed on the rear side of the platen 54. The conveyance roller pair 55 is driven by a drive motor (not shown) to sandwich the sheet 6 in the conveyance path 51 and convey the sheet 6 in the conveyance direction indicated by the two-dot chain line arrow in FIG.

  The paper discharge roller pair 56 is provided on the front side of the platen 54. The paper discharge roller pair 56 is driven by a drive motor (not shown) so as to sandwich the sheet 6 in the conveyance path 51 and convey the sheet 6 in the conveyance direction indicated by the two-dot chain line arrow in FIG.

  The sheet 6 is intermittently conveyed on the platen 54 by the conveyance roller pair 55 and the discharge roller pair 56, and an image is recorded by the recording unit 60. The sheet 6 on which the image is recorded is discharged to the paper discharge tray 32 by the paper discharge roller pair 56.

[Recording unit 60]
As shown in FIG. 2, the recording unit 60 includes a carriage 61 disposed on the upper side of the platen 54 and a recording head 62 mounted on the carriage 61. The carriage 61 is supported on a guide rail (not shown) so as to be able to reciprocate in the left-right direction 9 and is reciprocated in the left-right direction 9 by a drive motor (not shown). Ink is supplied to the recording head 62 from an ink cartridge (not shown). The recording head 62 discharges the supplied ink as ink droplets onto the sheet 6 on the platen 54.

[Device casing 21]
As described above, the device housing 21 has a substantially rectangular parallelepiped appearance. As shown in FIG. 1, the front walls 33 constituting the front side of the rectangular parallelepiped shape are provided as a pair on both sides in the left-right direction 9, and a panel portion 110 described later is interposed between the pair of front walls 33. It is inserted. That is, the panel unit 110 is provided in the apparatus housing 21.

  The device housing 21 has a rectangular parallelepiped shape, a first cover 120 (see FIG. 8 as an example of the second covering member of the present invention) that covers an upper portion of a communication board 70 (see FIG. 4) described later, and will be described later. A second cover 130 (see FIG. 3, an example of the first covering member of the present invention) covering the upper side of the control board 90 (see FIG. 3), is disposed below the control board 90 in parallel with the control board 90. 90 is provided with a shield metal plate 93 (see FIG. 9) for supporting 90, and a support plate 109 (see FIG. 9 as an example of the support member of the present invention) for supporting the shield metal plate 93 from below.

[Panel section 110]
As shown in FIGS. 1 and 5, the panel unit 110 is disposed in a box-shaped casing 111 that is generally thin in the front-rear direction 8 and inside the casing 111, and on the front surface 112 of the casing 111. An input unit 113 and a display unit 114 exposed to the outside through an opening (not shown) provided, and a rotation support unit 116 (see FIGS. 3 and 8) rotatably supported by the apparatus housing 21. ing.

  Protrusions (not shown) extending outward are formed at both ends in the left-right direction 9 in the vicinity of the upper end portion of the apparatus housing 21. In the apparatus housing 21, a hole 108 (see FIG. 4) is formed at a position facing the protrusion. By inserting the protrusion into the hole 108, the panel unit 110 is supported by the apparatus housing 21 so as to be rotatable around an axis along the extending direction of the protrusion 71 (a direction parallel to the left-right direction 9). The That is, the panel unit 110 is rotatable in the direction of the arrow 106 shown in FIG.

  The input unit 113 is a key. When this key is pressed, an instruction to operate the multifunction device 10 is input. In FIG. 1, only one input unit 113 is shown, but it goes without saying that a plurality of input units 113 may be provided. The input unit 113 is not limited to a key, and may be a dial or a lever, for example.

  The display unit 114 is a liquid crystal panel. Information about the multifunction peripheral 10 such as an image is displayed on the liquid crystal panel. The liquid crystal panel may be a touch panel. In this case, the touch panel has both a function as the display unit 114 and a function as the input unit 113.

  In the present embodiment, the panel unit 110 includes the input unit 113 and the display unit 114, but may include only one of the input unit 113 or the display unit 114.

  As shown in FIG. 3, the rotation support portion 116 protrudes rearward from the rear surface 115 of the housing 111, and is formed by a pair of convex portions 117 arranged at intervals in the left-right direction 9 and a right convex portion 117. A biasing member (not shown) composed of a pivoting member 118 supported so as to be pivotable about an axis along the vertical direction 7, and a spring that biases the pivoting member 118 toward the left convex portion 117. And.

  An engagement member 119 is disposed in the apparatus housing 21. The engaging member 119 is fixed to the apparatus housing 21 so as to be positioned between the pair of convex portions 117. On the right surface of the engagement member 119, a plurality of recesses (not shown) are formed that are arranged at intervals along the rotation direction of the panel unit 110 (the direction of the arrow 106 shown in FIG. 5). The turning tip of the turning member 118 is inserted into the recess.

  By inserting the rotating front end portion of the rotating member 118 into any of the plurality of concave portions provided in the engaging member 119, the panel unit 110 can rotate according to the position of the concave portion where the rotating front end portion is inserted. The moving angle is maintained. When a force greater than the urging force of the urging member is applied to the casing 111 when the panel unit 110 is rotated, the rotating member 118 is separated from the recess of the engaging member 119 against the urging force of the urging member. Rotate in the direction to Thereby, the panel part 110 can be rotated in the direction of an arrow 106 (see FIG. 5).

  The panel unit 110 has a first position (a position indicated by a solid line in FIG. 5) where the front surface 112 extends in the up-down direction 7 and the left-right direction 9 and a lower end (rotating tip) thereof at the first position. And a second position (a position indicated by a broken line in FIG. 5) positioned above. When the panel unit 110 is in the first position, the front surface 112 is parallel to the front and back surfaces of the communication board 70 described later.

  In addition, the structure for rotating the panel part 110 is not restricted to the structure provided with the rotation support part 116 and the engaging member 119 mentioned above, A well-known structure may be employ | adopted.

[First cover 120]
As shown in FIG. 8, the first cover 120 is a plate-shaped synthetic resin molded product that is long in the left-right direction 9. In the left-right direction 9, the first cover 120 extends slightly below the left end of the panel part 110 from below the left convex part 117 in the panel part 110. In the front-rear direction 8, the first cover 120 is disposed in the vicinity of the panel unit 110 behind the panel unit 110. The first cover 120 is disposed substantially at the same position as the central portion of the panel portion 110 in the vertical direction 7. Below the first cover 120, a communication board 70 described later is disposed.

  The first cover 120 is supported at both ends in the left-right direction 9 by a second cover 130 (see FIG. 3), which will be described later, via a support (not shown). One end of the column is screwed into a hole 131 provided in the first cover 120, and the other end of the column is screwed into a hole 134 (see FIG. 3) provided in the second cover 130.

  As shown in FIG. 7B, the first cover 120 includes a bottom plate 121 extending in the front-rear direction 8 and the left-right direction 9, and a front plate extending upward from the front end of the bottom plate 121 and extending generally in the left-right direction 9. 122 and a rear plate 123 extending upward from the rear end of the bottom plate 121 and extending substantially in the left-right direction 9. As a result, the first cover 120 is formed with a recess 124 that includes the bottom plate 121, the front plate 122, and the rear plate 123 and extends in the left-right direction 9. The liquid that has entered the apparatus from between the upper end of the casing 111 of the panel unit 110 and the apparatus casing 21 flows in the direction indicated by the arrow 125 in FIG. 6B and is stored in the recess 124.

  As shown in FIG. 7B, the first cover 120 includes a plurality of ribs 126 that are erected upward from the bottom plate 121. The ribs 126 are formed with recesses 127 that are recessed downward from the upper end. A cable (not shown) extending from the panel unit 110 (specifically, the input unit 113 and the display unit 114 disposed inside the housing 111) is supported by the rib 126 in a state of being fitted in the recess 127. . That is, the recess 127 holds the cable extended from the panel unit 110.

  As shown in FIGS. 6B and 7B, the bottom plate 121 of the first cover 120 includes a bulging portion 128 that is bent so as to rise upward at a position corresponding to the upper side of the communication substrate 70. ing. A space 129 is formed below the bulging portion 128. The communication board 70 is disposed in the space 129. That is, the bulging part 128 covers the communication board 70 from above.

[Second cover 130]
As shown in FIGS. 3 and 5, the second cover 130 is a plate-shaped synthetic resin molded product that expands in the front-rear direction 8 and the left-right direction 9. The second cover 130 occupies approximately the front half of the apparatus housing 21 in plan view. As described above, the second cover 130 supports the first cover 120 via the support column.

  The second cover 130 is located above the control board 90 described later. That is, the second cover 130 covers the upper side of the control board 90. As shown in FIG. 3, in the present embodiment, the second cover 130 covers most of the control board 90 except for the left rear portion and the right front portion.

  As shown in FIG. 7A, a notch 132 is formed at the front end of the second cover 130 by notching backward. The notch 132 is provided on the control board 90 and is formed above a connector 94 (described later) connected to the communication board 70. The edge 133 of the front end of the second cover 130 constituting the notch 132 extends substantially along the connector 94 in plan view. As a result, the second cover 130 does not cover the connector 94 from above.

[Control board 90]
The control board 90 is made of glass epoxy or paper phenol, and is a printed board having a wiring pattern formed on at least the surface.

  As shown in FIG. 4, the control board 90 is disposed inside the apparatus housing 21. The control board 90 is arranged so that the front and back surfaces thereof extend in the front-rear direction 8 and the left-right direction 9. That is, the front and back surfaces are arranged so as to be parallel to the mounting surface of the apparatus housing 21. Here, the front and back surfaces are surfaces on which mounting components 92 described later are mounted. In the following, it is assumed that the front surface of the control board 90 is the upper surface and the back surface is the lower surface. The placement surface is a surface that comes into contact with an installation target (for example, a desk on which the device housing 21 is installed) when the device housing 21 is installed. In the present embodiment, the mounting surface is the lower surface of the apparatus housing 21. The control board 90 is disposed on the front side and the left side of the apparatus housing 21.

  In addition, the structure arrange | positioned so that the front and back and the mounting surface mentioned above may become parallel includes the structure where the front and back are slightly inclined from the parallel with respect to the mounting surface. The front and back surfaces of the control board 90 may not be arranged in parallel with the mounting surface of the apparatus housing 21. For example, the front and back surfaces of the control board 90 may be parallel to the side surface of the device housing 21 (for example, the side surface in the left-right direction 9 of the device housing 21 shown in FIG. 1).

  The control board 90 is supported by a shield metal plate 93 (see FIG. 9) via a metal support (not shown). One end of the support column is screwed into a hole 100 provided in the control board 90, and the other end of the support column is screwed into a hole 107 (see FIG. 9) provided in the shield metal plate 93. Further, as shown in FIG. 5, the shielding sheet metal 93 is supported by the support plate 109 via the support column 96. Further, as described above, the control board 90 is covered with the second cover 130 (see FIG. 3).

  A microcomputer 91 and various mounting components 92 are mounted on the control board 90. The mounting component 92 is a resistor, a diode, a capacitor, a coil, or the like. The microcomputer 91 implements a control circuit that controls driving of a drive motor (not shown), the recording head 62, the scanner unit 12, and the like. That is, the control board 90 is provided with a control circuit that controls the operation of the multifunction machine 10.

  Further, as shown in FIG. 7A, a connector 94 is mounted at the center portion in the left-right direction 9 at the front end portion of the control board 90. 7A, the connector 94 is mounted on the front surface of the control board 90, but the connector 94 may be mounted on the back surface of the control board 90.

  The connector 94 is a male type. Further, the lead 95 of the connector 94 is bent. As a result, the connector 94 is in a state in which the connecting portion connected to the female connector is oriented in the direction perpendicular to the vertical direction 7 (front in this embodiment) when mounted on the control board 90. The connector 94 is connected to a female connector (not shown) mounted on a communication board 70 described later. That is, the control board 90 has a connector 94 that is connected to the communication board 70. Note that a female connector may be mounted on the control board 90 and a male connector may be mounted on the communication board 70.

[Communication board 70]
The communication board 70 is made of glass epoxy or paper phenol, and is a printed board having a wiring pattern formed on at least the surface.

  As shown in FIGS. 4 and 6, the communication board 70 is disposed inside the apparatus housing 21. The communication board 70 is arranged so that the front and back surfaces thereof extend in the vertical direction 7 and the horizontal direction 9, that is, the front and back surfaces are orthogonal to the front and back surfaces of the control board 90. Here, the front and back surfaces are surfaces on which electronic components (not shown) and connectors 94 described later are mounted. In the following, it is assumed that the surface of the communication board 70 is the front surface 72 (an example of the second surface of the present invention) and the back surface is the rear surface 71 (an example of the first surface of the present invention). In the configuration in which the front and back surfaces of the communication board 70 and the front and back surfaces of the control board 90 are orthogonal to each other, one of the front and back surfaces of each of the boards 70 and 90 is slightly inclined with respect to the other. Also included is the configuration.

  The communication board 70 is supported by the control board 90 by connecting a female connector (not shown) mounted on the rear surface 71 to a male connector 94 mounted on the upper surface of the control board 90. Thereby, the communication board 70 is electrically connected to the control board 90 via the connector 94. The communication board 70 protrudes upward from the control board 90 as shown in FIGS. 6 and 7A while being supported by the control board 90.

  Various electronic components (not shown) for performing wireless communication between the multifunction machine 10 and external devices are mounted on the communication board 70. Here, examples of the external device include a digital camera and a personal computer. Examples of wireless communication include Bluetooth (registered trademark) and infrared communication. A communication circuit that performs wireless communication between the multifunction machine 10 and an external device is realized by these various electronic components. In other words, the communication board 70 is provided with a communication circuit.

[Ground conductive member 80]
The ground conducting member 80 shown in FIG. 6 has conductivity, and is used in a state of being sandwiched between two members or in contact with the two members. As a result, the two members are electrically connected. In the present embodiment, the two members described above are the control board 90 and the communication board 70.

  The ground conducting member 80 is made of, for example, a foam made of urethane and a conductive film that covers the foam. The configuration of the ground conductive member 80 is conductive and can electrically connect between the control board 90 and the communication board 70 via the ground conductive member 80. Not only the above configuration but also a known configuration can be adopted.

  In the present embodiment, the ground conducting member 80 has a rectangular parallelepiped shape, but may have another shape.

  As shown in FIG. 6, the front surface 85 of the ground conductive member 80 is attached to the rear surface 71, which is the surface on the connector 94 side of the communication board 70, with a conductive adhesive or the like. Specifically, the ground conductive member 80 is attached to the left side of the female connector (not shown) on the rear surface 71. As a result, the ground conducting member 80 is brought into contact with the rear surface 71 of the communication board 70.

  The ground conductive member 80 is attached to the rear surface 71 of the communication substrate 70 at a position where the lower surface 86 can contact the upper surface 98 of the control substrate 90.

  Usually, a wiring pattern formed on the surface of a printed board such as the communication board 70 is covered with a resist at a portion other than a portion to which solder is attached. However, portions of the rear surface 71 of the communication substrate 70 and the upper surface 98 of the control substrate 90 that are in contact with the ground conductive member 80 are exposed without being covered with the resist. Thereby, the control board 90 and the communication board 70 are electrically connected via the ground conductive member 80. The wiring patterns on the control board 90 and the communication board 70 that are in contact with the ground conductive member 80 are wiring patterns connected to the ground.

[Rib 135]
As shown in FIG. 6, a rib 135 protruding downward is formed on the lower surface of the front end portion of the second cover 130. The rib 135 includes a main body 138 and a convex portion 139 projecting downward from a rear end portion of the lower surface 137 of the main body 138 (an example of a sandwiching portion of the present invention).

  In the vertical direction 7, the front side of the lower surface 137 of the main body 138 faces the upper surface 87 of the ground conducting member 80. The lower surface 137 has substantially the same height as the upper surface of the ground conductive member 80 in a state of being attached to the communication board 70. Further, the upper surface 98 of the control board 90 is substantially the same height as the lower surface 86 of the ground conductive member 80 in a state of being attached to the communication board 70. As a result, the ground conducting member 80 is sandwiched between the lower surface 137 and the upper surface 98 of the control board 90. Here, in the vertical direction 7, the distance L 1 between the lower surface 137 and the upper surface 98 of the control board 90 is slightly longer than that of the ground conducting member 80. As a result, the ground conductive member 80 sandwiched between the lower surface 137 and the upper surface 98 of the control board 90 is pressed against the lower surface 137 and the upper surface 98 of the control board 90 by compressing the foam.

  The rear side of the main body 138 is located behind the ground conducting member 80 in the front-rear direction 8. Thereby, in the front-rear direction 8, the front surface 136 (an example of the contact portion of the present invention) of the convex portion 139 protruding from the rear side of the main body 138 faces the rear surface 88 of the ground conducting member 80. The front surface 136 is formed behind the ground conductive member 80 at a position spaced apart from the rear surface 88 of the ground conductive member 80 by a distance L2.

  Accordingly, the ground conductive member 80 is not less than the interval L2 due to an attachment error or bending of the communication substrate 70 to which the ground conductive member 80 is affixed or the control substrate 90 in contact with the ground conductive member 80. When moving rearward, the front surface 136 contacts the rear surface 88 of the ground conducting member 80 from the rear. Here, as described above, the front surface 85 of the ground conductive member 80 is attached to the rear surface 71 of the communication board 70. That is, the front surface 136 contacts the ground conductive member 80 from the side opposite to the communication board 70.

  In the present embodiment, the contact portion and the sandwiching portion of the present invention are provided on the rib 135 which is the same member, but the contact portion and the sandwiching portion of the present invention are different members, for example, a second cover. It may be provided on each of the two ribs provided on the lower surface of 130.

  In the present embodiment, the contact portion and the sandwiching portion of the present invention are provided in the second cover 130. However, the contact portion and the sandwiching portion of the present invention are members other than the second cover 130 (for example, the first cover). 1 cover 120).

[Shield metal plate 93]
The shield sheet metal 93 is a metal member. As shown in FIG. 5, the shield sheet metal 93 is disposed below the control board 90 in parallel with the control board 90. As described above, the shield metal plate 93 supports the control board 90 by metal posts (not shown). As shown in FIGS. 4 and 9, the shielding sheet metal 93 has substantially the same shape as the control board 90 in plan view.

[Support plate 109]
The support plate 109 is a resin member. As shown in FIG. 5, the support plate 109 is disposed below the shield sheet metal 93 in parallel with the shield sheet metal 93. As described above, the support plate 109 supports the shield metal plate 93 by the support column 96. As shown in FIGS. 4 and 9, the support plate 109 extends rearward and rightward from the control board 90 and the shield metal plate 93 in a plan view.

[Effect of the embodiment]
According to the present embodiment, the ground conducting member 80 is sandwiched between the front surface 136 of the convex portion 139 formed on the rib 135 and the communication board 70. According to the present invention, the ground conducting member 80 can be held in contact with the control board 90 and the communication board 70 in a configuration in which the control board 90 and the communication board 70 are arranged orthogonally.

  Further, according to the present embodiment, the front surface 136 of the convex portion 139 that functions as the contact portion of the present invention can be configured integrally with the second cover 130.

[Modification 1]
In the above-described embodiment, as shown in FIG. 6, the shield sheet metal 93 is disposed below the ground conducting member 80 and is not in contact with the ground conducting member 80. 93 may be in contact with the ground conducting member 80 from the rear, as will be described in detail below.

  In the first modification, the ground conductive member 80 is mounted on the lower surface of the control board 90. Accordingly, as shown in FIG. 10, the rear surface 88 of the ground conductive member 80 and the shield metal plate 93 face each other in the front-rear direction 8. A portion of the front end of the shield sheet metal 93 facing the ground conducting member 80 is bent. As a result, a bent portion 97 (an example of the contact portion of the present invention) is formed in the shielding sheet metal 93. The arrangement position, size, and outer shape of the shield sheet metal 93 are set so that the bent portion 97 contacts the rear surface 88 of the ground conductive member 80 from the rear. Thus, the bent portion 97 sandwiches the ground conductive member 80 between the rear surface 71 of the communication board 70.

  Here, in the front-rear direction 8, the distance L 3 between the bent portion 97 and the rear surface of the ground conductive member 80 is slightly longer than that of the ground conductive member 80. Thereby, the ground conducting member 80 sandwiched between the bent portion 97 and the communication substrate 70 is pressed against the communication substrate 70 and the bent portion 97 by compressing the foam.

  Note that the multifunction machine 10 includes both a portion having the function of the contact portion of the present invention, specifically, the bent portion 97 and the front surface 136 of the convex portion 139 formed on the rib 135 described in the above embodiment. It may be provided, or only one of them may be provided.

  According to the modification 1, the bending part 97 comprised integrally with the sheet metal 93 for shielding can be functioned similarly to the front surface 136 of the convex part 139 in the above-mentioned embodiment.

[Modification 2]
As shown in FIG. 10B, the support plate 109 may have a backup unit 81 that faces the front surface 72 of the communication board 70 with a space in the front-rear direction 8. Specifically, in the second modification, the support plate 109 extends further forward than the communication board 70. The backup unit 81 is a rib erected upward from a position in front of the communication board 70 in the support plate 109.

  In the front-rear direction 8, the backup unit 81 faces the front surface 72 of the communication board 70. The distance L4 between the rear end of the backup unit 81 and the front surface 72 of the communication board 70 is such that the communication board 70 (specifically, a female connector mounted on the rear surface 71 of the communication board 70) is detached from the connector 94. It is smaller than the required forward movement amount of the communication board 70.

  As a result, when the communication board 70 moves forward by an interval L4 or more due to an attachment error or bending, the backup unit 81 contacts the front surface 72 of the communication board 70 from the front.

  Note that the backup unit 81 may be in contact with the front surface 72 of the communication board 70.

  According to the second modification, the backup unit 81 contacts the front surface 72 of the communication board 70 before the communication board 70 is detached from the connector 94, thereby preventing the communication board 70 from coming off the control board 90.

  In the second modification, when the backup unit 81 is configured to contact the front surface 72 of the communication board 70, the communication unit 70 contacts the front surface 72 of the communication board 70, so that the communication board 70 is controlled to the control board 90. It is prevented from coming off.

[Modification 3]
As shown in FIG. 10B, the first cover 120 may have a backup unit 82 that faces the front surface 72 of the communication board 70 at an interval in the front-rear direction 8. Specifically, the backup portion 82 is a convex portion that protrudes rearward from the rear surface 84 of the front wall 83 constituting the front side of the space 129 in the bulging portion 128 of the first cover 120.

  Here, the distance L5 between the rear end (protruding front end) of the backup unit 82 and the front surface 72 of the communication board 70 is determined by the communication board 70 (specifically, a female connector mounted on the rear surface 71 of the communication board 70) as a connector. It is smaller than the amount of forward movement of the communication board 70 required to deviate from 94.

  As a result, when the communication board 70 moves forward by an interval L5 or more due to an attachment error or bending, the backup unit 82 contacts the front surface 72 of the communication board 70 from the front.

  Note that the backup unit 82 may be in contact with the front surface 72 of the communication board 70.

  According to the third modification, the backup unit 82 contacts the front surface 72 of the communication board 70 before the communication board 70 is detached from the connector 94, thereby preventing the communication board 70 from coming off the control board 90.

  In the third modification, when the backup unit 82 is configured to contact the front surface 72 of the communication board 70, the backup unit 82 contacts the front surface 72 of the communication board 70. It is prevented from coming off.

[Other variations]
The second substrate of the present invention is not limited to the communication substrate 70 having a communication circuit. For example, the second board of the present invention may be a power board on which a circuit for controlling power supply to each mechanism arranged in the apparatus housing 21 is mounted.

  The electronic apparatus of the present invention is not limited to the multifunction machine 10 and may be a telephone, a personal computer, or the like.

DESCRIPTION OF SYMBOLS 10 ... Multifunction machine 21 ... Apparatus housing 70 ... Communication board 71 ... Rear surface 80 ... Ground conducting member 90 ... Control board 94 ... Connector 120 ... First cover 130 ... second cover 136 ... front

Claims (10)

A device housing;
A first substrate disposed in the device casing and provided with a control circuit for controlling the operation of the device;
A second board disposed in the apparatus housing and electrically connected to the first board via a connector;
A grounding conductive member that is brought into contact with the first surface on the connector side of the first substrate and the second substrate and electrically connects the first substrate and the second substrate;
The second substrate is arranged such that the first surface is orthogonal to the front and back surfaces of the first substrate,
The electronic device has an abutting portion that abuts against the ground conducting member from the side opposite to the second substrate.   2. The electronic device according to claim 1, wherein the first substrate is disposed such that a front surface and a rear surface thereof are parallel to a mounting surface of the device housing. The apparatus housing includes a shield metal plate arranged in parallel with the first substrate,
The electronic device according to claim 1, wherein the contact portion is formed by bending a part of the shielding sheet metal. The apparatus housing has a support member for supporting the shield sheet metal,
4. The electronic device according to claim 1, wherein the support member includes a backup unit that contacts a second surface of the second substrate opposite to the first surface. 5. The apparatus housing has a support member for supporting the shield sheet metal,
The support member has a backup part facing the second surface opposite to the first surface of the second substrate with a gap therebetween,
The distance between the second surface of the second substrate and the backup unit is smaller than the amount of movement of the second substrate necessary for the second substrate to be detached from the connector. Electronic devices. The apparatus housing includes a first covering member that covers the first substrate,
The electronic device according to claim 1, wherein the contact portion is provided on the first covering member.   The electronic device according to claim 6, wherein the first covering member includes a sandwiching portion that sandwiches the ground conducting member between the first covering member and the first substrate. The apparatus housing includes a second covering member that covers the second substrate,
The electronic device according to claim 1, wherein the second covering member has a backup portion that contacts a second surface of the second substrate opposite to the first surface. The apparatus housing includes a second covering member that covers the second substrate,
The second covering member has a backup portion facing the second surface opposite to the first surface of the second substrate with a space therebetween,
The distance between the second surface of the second substrate and the backup unit is smaller than the amount of movement of the second substrate necessary for the second substrate to be detached from the connector. Electronic devices. The electronic device according to claim 1, wherein the second substrate has a communication circuit that performs wireless communication with an external device.

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