electronic machinery

Abstract

To provide an electronic apparatus which can be downsized.SOLUTION: The electronic apparatus comprises: a first board provided with a first connector and fixed to a first fixation member; and a second board provided with a second connector connected with the first connector and with a terminal for connecting with an external apparatus, and fixed to a second fixation member different from the first fixation member so as to be parallel to the board surface of the first board. The terminal overlaps the first board, in a direction orthogonal to the board surface.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an electronic device having an external connection terminal.

Background Art

[0002] Conventionally, in an electronic device, a substrate on which an external connection terminal electrically connected to an external device is mounted is positioned and fixed inside the device. Patent Document 1 discloses an electronic device capable of accurately positioning the positions of an external connection terminal mounted on a main substrate and a battery connector.

Prior Art Literature

Patent Literature

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] However, when the electronic device disclosed in Patent Document 1 is equipped with a large-sized external connection terminal such as an HDMI TYPE-A terminal, which is a standard type of HDMI (registered trademark) terminal, the height dimension in the substrate height direction particularly increases, resulting in an increase in the overall size of the device.

[0005] An object of the present invention is to provide a compact electronic device.

Means for Solving the Problem

[0006] An electronic device according to one aspect of the present invention comprises: a first substrate that includes a first connector and is fixed to a first fixing member; and a second substrate that includes a second connector connected to the first connector and a terminal for connecting to an external device, and is fixed to a second fixing member different from the first fixing member so as to be parallel to the substrate surface of the first substrate, A restricting portion for restricting the movement of the second substrate when the terminal is subjected to an external force, wherein, in a direction orthogonal to the substrate surface, the terminal overlaps the first substrate Furthermore, at least one restricting portion includes a first restricting portion that restricts the movement of the second substrate by contacting the second substrate when the terminal is subjected to an external force, and the clearance between the second substrate and the first restricting portion is smaller than the clearance between the terminal and an opening provided in the exterior member to expose the terminal to the outside. characterized in that:

Effect of the Invention

[0007] According to the present invention, a compact electronic device can be provided. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of an imaging device, which is an example of an electronic device according to an embodiment of the present invention. [Figure 2] This diagram shows the main components of the imaging device. [Figure 3] This is a perspective view of the connecting cable. [Figure 4] This is an explanatory diagram of the imaging device. [Modes for carrying out the invention]

[0009] The embodiments of the present invention will be described in detail below with reference to the drawings. In each figure, the same reference numeral is used for identical components, and redundant explanations are omitted.

[0010] Figure 1 is a perspective view of an imaging device 10, which is an example of an electronic device according to an embodiment of the present invention. In this embodiment, an example of applying the present invention to an imaging device is described, but the present invention is not limited thereto. The present invention can also be applied to other electronic devices such as personal digital assistants (PDAs) and mobile phones.

[0011] In the following explanation, the up-down, front-back, and left-right directions are defined based on the direction as seen from the user (photographer) facing the back of the imaging device 10.

[0012] Figure 1(A) is a perspective view of the imaging device 10 as seen from the front, and Figure 1(B) is a perspective view of the imaging device 10 as seen from the rear. The imaging device 10 has a mount 10a and an exterior part 10b. An interchangeable lens (lens device) not shown can be attached to the mount 10a. The axis passing through the center of the mount 10a substantially coincides with the optical axis P (see dashed line) of the imaging optical system of the interchangeable lens, i.e., the shooting optical axis. The exterior part 10b is composed of multiple members. In this embodiment, the imaging device 10 is a lens-interchangeable camera in which an interchangeable lens can be attached to the camera body, but it may also be a camera in which the camera body and lens unit are integrated.

[0013] In the following explanation, the figures used will only illustrate the parts necessary for understanding the present invention, and will omit any unnecessary parts.

[0014] Figure 2 shows the main parts of the imaging device 10. Figure 2(A) is an exploded view of the imaging device 10 seen from the front at an angle, and Figure 2(B) is an exploded view of the imaging device 10 seen from above. The imaging device 10 includes a control board (first board) 100, an external terminal board (second board) 200, a retaining sheet metal (second fixing member) 300, a base member (first fixing member) 400, a rear cover unit 500, a side cover (exterior member) 600, and a heat sink 700. The control board 100 and the retaining sheet metal 300 are positioned and fixed to the base member 400. The rear cover unit 500 includes a rear cover 501 and, together with the side cover 600, constitutes the exterior part 10b.

[0015] The control board 100 has a control IC 101 for controlling the imaging signal and a connector 104 mounted on it. The control board 100 also has various electronic components mounted on it, such as chip resistors, ceramic capacitors, inductors, and transistors. The control board 100 is positioned on the base member 400 and fixed in place with screws. The heat sink 700 is placed in front of the control board 100 to cool the heat generated by the control IC 101 and other components. The heat sink 700 is made of a material with high thermal conductivity, such as copper or aluminum.

[0016] The external terminal board 200 is made of rigid printed circuit board and is fixed to a retaining plate 300 attached to the base member 400 with screws 201 and 202. The external terminal board 200 has external connection terminals 203 and connectors 204 mounted on it. The external connection terminals 203 are, for example, HDMI terminals such as HDMI TYPE-A terminals and are soldered to the external terminal board 200. The external terminal board 200 is provided parallel to the board surface of the control board 100. Connectors 104 and 204 are mated together and signals from the external connection terminals 203 are transmitted to the control IC 101. The control board 100 and the external connection terminals 203 are positioned so that they overlap in the thickness direction of the control board 100 (front-to-back direction, direction perpendicular to the board surface). The front-to-back position of the external terminal board 200 relative to the control board 100 is determined by the connectors 104 and 204. By changing the height of connectors 104 and 204, the position of the external connection terminal 203 can be changed, the arrangement with other components inside the imaging device 10 can be adjusted, and the thickness of the imaging device 10 in the front-to-back direction can be reduced.

[0017] Connectors 104 and 204 are in a plug connector and receptacle connector relationship, with mating shapes that match each other. Connectors 104 and 204 are configured as floating connectors. A floating connector is a connector in which the terminals constituting the connector are spring-loaded and can move in the direction of the board plane (parallel to the board surface). Here, movement includes linear movement and rotational movement. By configuring connectors 104 and 204 to be movable, electrical connection can be made while absorbing errors and misalignments during mating, and malfunctions such as damage to connectors 104 and 204 can be suppressed. With connectors 104 and 204 moved in the direction of the board plane, the external terminal board 200 is positioned on the retaining plate 300 and fixed with screws 201 and 202. The control board 100 and the external terminal board 200 are positioned on the base member 400 and retaining plate 300, respectively, and the positional misalignment of connectors 104 and 204 is absorbed by the floating connector configuration.

[0018] The rear cover unit 500 is screw-fastened to the base member 400 by a sheet metal 502 that is screw-fastened to the rear cover 501, and is fixed to the base member 400.

[0019] Figure 3 is a perspective view of the connection cable 108 connected to an unillustrated external device. The connection cable 108 includes a cable portion 108d and a plug 108a provided at an end portion. The plug 108a is provided at the tip, and is constituted by a protruding connector 108b and a grip portion 108c. By inserting the connector 108b into the external connection terminal 203, the image pickup apparatus 10 and an external device can be electrically connected.

[0020] In a state where the image pickup apparatus 10 and an external device are connected via the connection cable 108, a user operates each device to perform various tasks. When an accident such as catching on the connection cable 108 occurs during work, a large external force may instantaneously be applied to the connection cable 108. When an external force is applied to the connection cable 108, the external force is also applied to the external connection terminal 203, which may cause breakage of the solder joint portion with the external terminal board 200, or breakage / deformation of the external connection terminal 203 itself, resulting in the image pickup apparatus 10 being unable to connect to the external device.

[0021] In the present embodiment, in order to suppress breakage of the solder joint portion with the external terminal board 200 and breakage / deformation of the external connection terminal 203 itself, a restricting portion for restricting movement of the external terminal board 200 in each direction is provided. For example, a restricting portion may be provided to restrict movement of the external terminal board 200 when the external connection terminal 203 receives an external force in a direction orthogonal to the board surface of the control board 100. Further, a restricting portion may be provided to restrict movement of the external terminal board 200 when the external connection terminal 203 receives an external force in a direction parallel to the direction of gravity. A specific configuration of the restricting portion will be described below.

[0022] Figure 4 is an explanatory diagram of the imaging device 10. Figure 4(A) is an enlarged side view of the imaging device 10, showing the clearances in each direction between the side cover 600, which has an opening for exposing the external connection terminal 203, and the external connection terminal 203. CLza is the clearance between the external connection terminal 203 and the front part 600a of the opening in the side cover 600. CLzb is the clearance between the external connection terminal 203 and the rear part 600b of the opening in the side cover 600. CLya is the clearance between the external connection terminal 203 and the upper part 600c of the opening in the side cover 600. CLyb is the clearance between the external connection terminal 203 and the lower part 600d of the opening in the side cover 600. In this embodiment, the relatively small external terminal board 200 on which the external connection terminal 203 is mounted is positioned on the retaining plate 300 as described above. Therefore, the positions of the front 600a, rear 600b, upper 600c, and lower 600d portions of the opening of the side cover 600 and the external connection terminal 203 can be precisely aligned without being affected by the warping of the circuit board. As a result, the clearances CLza, CLzb, CLya, and Clyb between the external connection terminal 203 and each part of the opening of the side cover 600 can be set uniformly.

[0023] The following describes the case where an external force Fza acts on the external connection terminal 203 on the front side of the imaging device 10, with reference to Figures 4(A) and 4(B). Figure 4(B) is a cross-sectional view of the main parts of the external terminal board 200 and the external connection terminal 203. Using the front position 203a of the external connection terminal 203 as a pivot point, a force Fza1 acts in the direction that the rear terminal 203e of the external connection terminal 203 is pressed against the external terminal board 200. The force Fza1 also acts on the external terminal board 200 in a similar manner, and the connector 204 of the external terminal board 200 moves in the direction that it lifts away from the connector 104 of the control board 100. In order to suppress damage and deformation of the external connection terminal 203 and to suppress the lifting of the connectors 104 and 204 and ensure electrical connection, a receiving portion (first restricting portion) 501a is arranged on the rear cover 501. That is, it is desirable to bring the external terminal board 200 and the receiving portion 501a as close together as possible. In this embodiment, the clearance CLza1 between the external terminal substrate 200 and the receiving portion 501a is set to be smaller than the clearance CLza between the external connection terminal 203 and the front portion 600a of the opening of the side cover 600. By setting it in this way, when an external force Fza acts on the front side of the imaging device 10 on the external connection terminal 203, the external terminal substrate 200 can be supported by the receiving portion 501a. Therefore, it is possible to suppress the external connection terminal 203 from being directly subjected to external force by contacting the front portion 600a of the opening of the side cover 600 and peeling off the external connection terminal 203 from the external terminal substrate 200.

[0024] The following describes the case where an external force Fzb acts on the external connection terminal 203 on the rear side of the imaging device 10, with reference to Figures 4(A) and 4(B). Using the rear position 203b of the external connection terminal 203 as a pivot point, force Fzb1 acts in a direction that causes the rear terminal 203e of the external connection terminal 203 to lift away from the external terminal substrate 200. Similarly, force Fzb1 acts on the external terminal substrate 200, causing the connector 204 of the external terminal substrate 200 to move in a direction that presses it against the connector 104 of the control board 100. In order to suppress the destruction and deformation of the external connection terminal 203, the receiving portion (second restricting portion) 700a of the heat sink 700 is positioned at a location that suppresses the lifting of the rear terminal 203e of the external connection terminal 203. That is, it is desirable to bring the surface (part of the external connection terminal 203) 203f, which is less likely to peel off from the external terminal substrate 200 even when an external force is applied to the external connection terminal 203, and the receiving portion 700a as close together as possible. In this embodiment, the clearance CLzb1 between the surface 203f and the receiving portion 700a is set to be smaller than the clearance CLzb between another part of the external connection terminal 203 and the rear part 600b of the opening provided in the side cover 600. By setting it in this way, when an external force Fzb is applied to the rear side of the imaging device 10 on the external connection terminal 203, the surface 203f can be received by the receiving portion 700a. Therefore, when an external force is applied to the external connection terminal 203 in contact with the rear part 600b of the opening in the side cover 600, the external force is applied to a location that is prone to peeling from the external terminal substrate 200, thus suppressing the peeling of the external connection terminal 203 from the external terminal substrate 200.

[0025] The following describes the case where an external force Fya acts on the external connection terminal 203 on the upper side of the imaging device 10, with reference to Figures 4(A) and 4(C). Force Fya1 acts in a direction that causes the external connection terminal 203 to rotate around its upper position 203c. Force Fya1 also acts on the external terminal board 200 in a similar manner, causing the connector 204 of the external terminal board 200 to rotate in the direction of force Fya1 relative to the connector 104 of the control board 100. In order to suppress damage and deformation of the external connection terminal 203 and to ensure electrical connection by suppressing the rotation of connectors 104 and 204, the receiving portion (third restricting portion) 502a of the sheet metal 502 is positioned at a location that suppresses the rotation of the external connection terminal 203. That is, it is desirable to bring the receiving portion (first receiving portion) 300a provided on the side surface of the retaining sheet metal 300 and the receiving portion 502a as close together as possible. In this embodiment, the clearance CLya1 between the receiving portions 300a and 502a is set to be smaller than the clearance CLya between the external connection terminal 203 and the upper part 600c of the opening in the side cover 600. Furthermore, the clearance CLya1 is set to be smaller than the amount of movement of the connectors 104 and 204. By setting it in this way, when an external force Fya acts on the upper side of the imaging device 10 on the external connection terminal 203, the receiving portion 300a can be received by the receiving portion 502a. Therefore, it is possible to suppress the external connection terminal 203 from being directly subjected to external force by contacting the upper part 600c of the opening in the side cover 600 and peeling off from the external terminal substrate 200.

[0026] The following describes the case where an external force Fyb acts on the external connection terminal 203 on the lower side (in the direction of gravity) of the imaging device 10, with reference to Figures 4(A) and 4(C). Force Fyb1 acts in a direction that causes the external connection terminal 203 to rotate around the lower position 203d of the external connection terminal 203. Force Fyb1 also acts on the external terminal board 200 in the same way, and the connector 204 of the external terminal board 200 rotates in the direction of force Fyb1 relative to the connector 104 of the control board 100. In order to suppress damage and deformation of the external connection terminal 203 and to suppress the rotation of connectors 104 and 204 and ensure electrical connection, the receiving portion (fourth restricting portion) 600e of the side cover 600 is positioned to suppress the rotation of the external connection terminal 203. That is, it is desirable to bring the receiving portion (second receiving portion) 300b and the receiving portion 600e provided on the side surface of the retaining plate 300 as close together as possible. In this embodiment, the clearance Clyb1 between the receiving portions 300b and 600e is set to be smaller than the clearance Clyb between the external connection terminal 203 and the lower part 600d of the opening in the side cover 600. Furthermore, Clyb1 is set to be smaller than the amount of movement of the connectors 104 and 204. By setting it in this way, when an external force Fyb acts on the lower side of the imaging device 10 on the external connection terminal 203, the receiving portion 300b can be received by the receiving portion 600e. Therefore, it is possible to suppress the external force from directly applying to the external connection terminal 203 by contacting the lower part 600d of the opening in the side cover 600, and preventing the external connection terminal 203 from peeling off from the external terminal substrate 200.

[0027] In this embodiment, the side surface of the retaining plate 300 and the side cover 600 are positioned as close together as possible. However, a similar effect can be obtained by positioning the side surface of the external terminal board 200 and the side cover 600 closer together. In this configuration, however, a direct load is applied to the external terminal board 200, requiring a design that takes into account potential damage to the internal wiring of the external terminal board 200 and debris generated by the scraping of the external terminal board 200.

[0028] As described above, in this embodiment, the external connection terminal 203 is mounted on an external terminal board 200, which is a separate board from the control board 100, and the external connection terminal 203 is positioned so as to overlap with the control board 100 in a direction perpendicular to the board surface. This allows for flexible layout of the position of the external connection terminal 203, making it possible to miniaturize the imaging device 10.

[0029] This embodiment includes the following configuration. (Composition 1) A first substrate having a first connector and fixed to a first fixing member, The present invention comprises a second connector connected to the first connector, and a second substrate having terminals for connecting to external devices, and being fixed to a second fixing member different from the first fixing member so as to be parallel to the substrate surface of the first substrate, An electronic device characterized in that the terminals overlap with the first substrate in a direction perpendicular to the substrate surface. (Configuration 2) The electronic device according to configuration 1, characterized in that the first connector and the second connector are each in a state where they have moved from their state before being connected to each other to a state parallel to the substrate surface. (Composition 3) The electronic device according to configuration 1 or 2, further comprising at least one restricting portion for restricting the movement of the second substrate when the terminal is subjected to an external force. (Composition 4) The at least one restricting portion includes a first restricting portion that restricts the movement of the second substrate by contacting the second substrate when the terminal is subjected to an external force, The electronic device according to configuration 3, characterized in that the clearance between the second substrate and the first restricting portion is smaller than the clearance between the terminal and an opening provided in the exterior member to expose the terminal to the outside. (Composition 5) The first regulating part described above is provided on the rear cover, The electronic device according to configuration 4, characterized in that the exterior member is a side cover. (Composition 6) The at least one restricting portion includes a second restricting portion that restricts the movement of the second substrate by contacting a part of the terminal when the terminal is subjected to an external force. The electronic device according to configuration 3, characterized in that the clearance between a part of the terminal and the second restricting portion is smaller than the clearance between the other part of the terminal and an opening provided in the exterior member to expose the terminal to the outside. (Composition 7) The second regulating part is provided on the heat sink, The electronic device according to configuration 6, characterized in that the exterior member is a side cover. (Composition 8) The at least one restricting portion includes a third restricting portion that restricts the movement of the second substrate by contacting a first receiving portion provided on the second fixing member when the terminal is subjected to an external force. The electronic device according to configuration 3, characterized in that the clearance between the first receiving portion and the third restricting portion is smaller than the clearance between the terminal and an opening provided in the exterior member for exposing the terminal to the outside. (Composition 9) The third restricting portion is provided on the sheet metal, The electronic device according to configuration 8, characterized in that the exterior member is a side cover. (Composition 10) The at least one restricting portion includes a fourth restricting portion that restricts the movement of the second substrate by contacting a second receiving portion provided on the second fixing member when the terminal is subjected to an external force. The electronic device according to configuration 3, characterized in that the clearance between the second receiving portion and the fourth restricting portion is smaller than the clearance between the terminal and an opening provided in the exterior member for exposing the terminal to the outside. (Composition 11) The fourth restricting portion is provided on the exterior member, The electronic device according to configuration 10, characterized in that the exterior member is a side cover. (Composition 12) The electronic device according to configuration 3, characterized in that the at least one restricting portion includes a restricting portion for restricting the movement of the second substrate when the terminal is subjected to an external force in a direction perpendicular to the substrate surface. (Composition 13) The electronic device according to configuration 3, characterized in that the at least one restricting portion includes a restricting portion for restricting the movement of the second substrate when the terminal is subjected to an external force in a direction parallel to the direction of gravity. (Composition 14) The electronic device is an imaging device, as described in any one of configurations 1 to 13. (Composition 15) The electronic device according to any one of configurations 1 to 14 or 2, characterized in that the terminal is an HDMI terminal.

[0030] Although preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of its gist. [Explanation of Symbols]

[0031] 10. Imaging device (electronic equipment) 100 Control board (first board) 104 Connector (First Connector) 200 External terminal board (second board) 203 External connection terminals (terminals) 204 Connector (Second Connector) 300 Retaining member (second fixing member) 400 Base member (first fixing member)

Claims

1. A first substrate having a first connector and being fixed to a first fixing member, A second substrate is provided with a second connector connected to the first connector, and terminals for connecting to an external device, and is fixed to a second fixing member different from the first fixing member so as to be parallel to the substrate surface of the first substrate, The terminal has at least one restricting part for restricting the movement of the second substrate when the terminal is subjected to an external force, In a direction perpendicular to the substrate surface, the terminals overlap with the first substrate. The at least one restricting portion includes a first restricting portion that restricts the movement of the second substrate by contacting the second substrate when the terminal is subjected to an external force, The electronic device is characterized in that the clearance between the second substrate and the first restricting portion is smaller than the clearance between the terminal and an opening provided in the exterior member to expose the terminal to the outside.

2. The electronic device according to claim 1, characterized in that the first connector and the second connector are floating connectors that can move in a direction parallel to the substrate surface, and are configured to absorb errors or misalignments when mating the first connector and the second connector.

3. The first regulating part is provided on the rear cover, The electronic device according to claim 1 or 2, characterized in that the exterior member is a side cover.

4. The at least one restricting portion includes a second restricting portion that restricts the movement of the second substrate by contacting a part of the terminal when the terminal is subjected to an external force. The electronic device according to claim 1 or 2, characterized in that the clearance between a part of the terminal and the second restricting part is smaller than the clearance between the other part of the terminal and an opening provided in the exterior member to expose the terminal to the outside.

5. The second regulating part is provided on the heat sink, The electronic device according to claim 4, characterized in that the exterior member is a side cover.

6. The at least one restricting portion includes a third restricting portion that restricts the movement of the second substrate by contacting a first receiving portion provided on the second fixing member when the terminal is subjected to an external force. The electronic device according to claim 1 or 2, characterized in that the clearance between the first receiving portion and the third restricting portion is smaller than the clearance between the terminal and the opening provided in the exterior member for exposing the terminal to the outside.

7. The third restricting portion is provided on the sheet metal, The electronic device according to claim 6, characterized in that the exterior member is a side cover.

8. The at least one restricting portion includes a fourth restricting portion that restricts the movement of the second substrate by contacting a second receiving portion provided on the second fixing member when the terminal is subjected to an external force. The electronic device according to claim 1 or 2, characterized in that the clearance between the second receiving portion and the fourth restricting portion is smaller than the clearance between the terminal and the opening provided in the exterior member for exposing the terminal to the outside.

9. The fourth restricting portion is provided on the exterior member, The electronic device according to claim 8, characterized in that the exterior member is a side cover.

10. The electronic device according to claim 1 or 2, characterized in that the at least one restricting portion includes a restricting portion for restricting the movement of the second substrate when the terminal is subjected to an external force in a direction perpendicular to the substrate surface.

11. The electronic device according to claim 1 or 2, characterized in that the at least one restricting portion includes a restricting portion for restricting the movement of the second substrate when the terminal is subjected to an external force in a direction parallel to the direction of gravity.

12. The electronic device according to claim 1 or 2, characterized in that the electronic device is an imaging device.

13. The electronic device according to claim 1 or 2, characterized in that the terminal is an HDMI terminal.

Images