JP2021063866A - Electronic apparatus and module connectable to electronic apparatus - Google Patents

Abstract

To certainly attach a module to an electronic apparatus and achieve an electrically stable connection.SOLUTION: An electronic apparatus comprises: a second connector part that can be electrically connected to a first connector part of a module; and a plurality of terminals in which any of the terminals are arranged on a first surface orthogonal to an insertion/withdrawal direction of the second connector part and a second surface parallel to the first surface. The plurality of terminals include a first terminal group for communication used for display control of the module, a second terminal group different from the first terminal group, and a plurality of ground terminals. The first terminal group is provided on the first surface and includes terminals used for transmission of differential signals. The second terminal group is provided on the second surface and includes terminals used for transmission of signals different from the differential signals. When the second connector part is viewed from the first surface, the first terminal group and the second terminal group are superimposed to each other. The first terminal group is arranged adjacent to any of the plurality of ground terminals.SELECTED DRAWING: Figure 13

Description

The present invention relates to an electronic device and a module attached to and detached from the electronic device, and relates to a terminal used for electrical connection.

In an image pickup device such as a digital camera, an image signal, image information, and the like output from the image pickup element are recorded as a data file. The photographing lens forms an optical image on the image sensor, and image data is obtained by photoelectric conversion in the image sensor.

In electronic devices including an imaging device, it is possible to realize a so-called module recombination type electronic device having a desired function by recombining a module having a predetermined function by collecting a plurality of parts like a block. .. Patent Document 2 discloses a technique for attaching and detaching an interchangeable lens to and from the main body of an imaging device. A lens mount is provided for the user to attach / detach the interchangeable lens having the bayonet claw portion to / from the main body portion of the image pickup apparatus. The user rotates the movable mount portion about the optical axis from the state where the bayonet claw portion and the claw portion of the movable mount portion do not overlap on the optical axis projection. As a result, the movable mount portion moves toward the first fixed portion along the optical axis direction according to the screwing between the female screw portion formed on the fixed mount portion and the male screw portion formed on the movable mount portion, and the claws are clawed. The part and the bayonet claw part come into contact with each other.

Japanese Unexamined Patent Publication No. 2013-218149

With the configuration disclosed in Patent Document 1, the accessory module can be reliably fixed, but it is difficult to avoid the movement of the movable mount portion by screws and the increase in size of the device due to the attachment of the operating member of the movable mount portion. .. In module-recombinable electronic devices, it is important to perform alignment, short-circuit prevention measures, noise reduction, etc. when electrically connecting module devices with connectors. An object of the present invention is to ensure that a module and an electronic device are mounted and to realize an electrically stable connection.

The electronic device according to the embodiment of the present invention is an electronic device having a detachable display unit and an imaging unit, and is provided on the module according to the attachment / detachment of the module to the electronic device. A second connector portion that can be inserted and removed from the first connector portion and can be electrically connected to the first connector portion, and a plurality of terminals provided on the second connector portion are provided. , Any of the plurality of terminals is arranged on a first surface orthogonal to the insertion / extraction direction of the second connector portion and a second surface parallel to the first surface, and the plurality of terminals. Is a first terminal group for communication used for controlling the display unit, a second terminal group composed of terminals different from the first terminal group, and a plurality of grounds indicating a reference potential of a voltage. The first terminal group including terminals is a communication terminal provided on the first surface and used for transmitting a differential signal, and the second terminal group is provided on the second surface. It is a communication terminal provided and used for transmission of a signal different from the differential signal, and when the connector portion is viewed from the first surface, the first terminal group and the second terminal group are The first terminal group is arranged at an overlapping position, and is characterized in that the first terminal group is arranged adjacent to any one of the plurality of ground terminals.

According to the present invention, the module and the electronic device can be securely mounted, and an electrically stable connection can be realized.

FIG. 5 is a diagram illustrating an external view of a camera system 1 according to an embodiment of the present invention in a state where an EVF module 200 is attached to a device main body 100. It is a figure for exemplifying the external view of the state in which the EVF module 200 is removed from the apparatus main body 100 which concerns on embodiment of this invention. It is a figure for exemplifying the appearance perspective view from the back side with the EVF module 200 removed from the apparatus main body which concerns on embodiment of this invention. FIG. 5 is a diagram illustrating a state in which a user holds (holds) the camera 1 according to the present embodiment and looks into a display unit 253 provided substantially in the center of the finder opening 251. It is a figure for exemplifying the internal structure of the apparatus main body 100 which concerns on embodiment of this invention. It is sectional drawing of the apparatus main body 100 which concerns on embodiment of this invention. It is a figure for exemplifying the division perspective view of the EVF module 200 which concerns on embodiment of this invention. It is a partially disassembled perspective view which shows from the back side by disassembling a part of the apparatus main body 100 which concerns on embodiment of this invention. It is sectional drawing for demonstrating the transition of the locked state and the unlocked state of the apparatus main body 100 and the EVF module 200 which concerns on embodiment of this invention. It is a perspective view which includes the back side of the apparatus main body 100 for demonstrating the transition of the locked state between the lock member 141 and the EVF module 200 which concerns on embodiment of this invention. It is a circuit block diagram illustrating the state in which the EVF module 200 is attached to the apparatus main body 100 exemplarily. It is a simplified rear view of the EVF module 200 which concerns on this embodiment, and is the figure for exemplifying the details of the connector part 210. It is a figure which illustrates the arrangement of the plurality of terminals used for the electric connection provided in the camera system 1 which concerns on this Embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The electronic device according to the present invention is a module recombination type electronic device that can be used by mounting the second device on the first device. In the following, the first device is a main body of an electronic device and includes an image pickup unit, and the second device is a modular device that can be attached to and detached from the first device. A case where a display unit that can be displayed is provided will be described.

[First Embodiment]
(Basic configuration of camera system 1)
FIG. 1 is a diagram illustrating an external view of a camera system 1 according to an embodiment of the present invention in a state where an EVF module 200 is attached to a device main body 100. Of these, FIG. 1 (a) shows an external perspective view from the upper surface side, FIG. 1 (b) shows an external view from the front, and FIG. 1 (c) shows an external perspective view from the lower surface side. FIG. 2 is a diagram illustrating an external view of a state in which the EVF module 200 is removed from the device main body 100 according to the embodiment of the present invention. Of these, FIG. 2A shows an external perspective view from the front side, FIG. 2B shows an external perspective view from the front side, and FIG. 2C shows an external perspective view from the back side. FIG. 3 is a diagram illustrating an external perspective view from the back side in a state where the EVF module 200 is removed from the device main body 100 according to the embodiment of the present invention.

As shown in FIGS. 1 to 3, the camera system according to the present embodiment includes the device main body 100 and the EVF (ELECTRIC VIEW FINDER) module 200, and the EVF module 200 is attached to and detached from the device main body 100 by a so-called bayonet method. It will be realized. In the following description, the entire camera system 1 in which the EVF module 200 is mounted on the device main body 100 is simply referred to as a camera 1.

The device main body 100 includes an imaging unit 101 on the front surface. The image pickup unit 101 includes optical members such as a lens and an aperture that constitute an image pickup optical system, and an image pickup element 156. In the device main body 100, a connector portion 120, which will be described later, is arranged on a back surface portion 110 on the side opposite to the front surface where the imaging unit 101 is exposed and arranged.

The first operation unit 191 and the second operation unit 192 of the device main body 100 are operation members for switching ON / OFF of the power supply of the device main body and switching predetermined functions.

Further, the third operation unit 291 of the EVF module 200 is an operation member for receiving a release operation by the user, and can output an image pickup preparation instruction and an image pickup instruction of the subject according to the user's operation. Specifically, the third operation unit 291 is an operation member for outputting an operation signal according to the user's operation, and executes focus control and exposure control in a half-pressed (SW1) state of the third operation unit 291. Then, the main imaging of the subject is instructed while the third operation unit 291 is fully pressed (SW2).

Further, the fourth operation unit 292 and the fifth operation unit 293 of the EVF module 200 are operation members for switching a predetermined function. In this embodiment, each of the above-mentioned operating members is composed of buttons that can be pressed by the user. Further, although it is assumed that each operating member is assigned a different function, it may be possible to instruct a partially overlapping function.

A speaker unit 240, which will be described later, is provided on the lower surface of the EVF module 200, and it is possible to reproduce voice information recorded from the speaker sound passage hole shown in FIG. 1 (c) and to pronounce a warning sound. A finder opening 251 is provided on the back surface of the EVF module 200. A finder unit 250 including a display unit 253 is provided inside the module 200. The display unit 253 is composed of, for example, a display element formed by organic electroluminescence or the like and an optical lens, and the user can visually recognize the contents displayed on the display unit 253 from the finder opening 251.

The EVF module 200 has an annular portion 201 on a front surface portion 212 connected to the device main body 100. A plurality of claw portions 201a are formed in the annular portion 201 in the circumferential direction, and can be engaged with each of the plurality of claw portions 141c formed on the lock member 141 of the device main body 100.

Further, the EVF module 200 includes a connector portion 210 inside the annular portion 201 (inside in the radial direction). The connector unit 210 can be electrically connected to the connector unit 120 provided on the device body 100, and the EVF module 200 is electrically connected to the device body 100 with the EVF module 200 mounted on the device body 100. In the camera 1 according to the present embodiment, the connector portion 210 provided in the EVF module 200 has a convex shape, the connector portion 120 provided in the device main body 100 has a concave shape, and the connector portion 210 is connected to the connector. It is a configuration that can be inserted and removed from the unit 120. Then, the connector portion 210 of the EVF module 200 is electrically connected to each other in a state of being inserted and fitted into the connector portion 120 of the device main body 100.

An engaging convex portion 180 is provided on the back surface portion 110 of the device main body 100. Further, the front surface portion 212 of the EVF module 200 is formed with an engaging recess 280 on the outside (diameterally outside) of the annular portion 201. Therefore, when the EVF module 200 is mounted on the device main body 100, the engaging convex portion 180 is fitted with the engaging concave portion 280. It functions as a guide and an index when the user correctly attaches the EVF module 200 to the device main body 100.

A lock operation unit 141a is arranged on the side surface of the housing (first housing) 130 of the device main body 100 as an operation member for switching the locked state between the device main body 100 and the EVF module 200. A lever structure is adopted as the lock operation unit 141a. The lock operation portion 141a is an operation portion provided on the lock member 141 described later, and is integrally formed with the lock member 141 together with the ring-shaped portion 141b and the plurality of claw portions 141c. By operating the lock operation unit 141a by the user, it is possible to switch the state of the bayonet connection between the plurality of claw portions 141c provided on the ring-shaped portion 141b and the plurality of claw portions 201a on the EVF module 200 side. ..

The lock operation unit 141a is provided at the lower surface corner portion of the housing 130 of the device main body 100. With this configuration, for example, when the EVF module 200 is mounted on the device main body 100 (that is, the lock operation unit 141a is locked), as shown in FIG. 1B, the lock operation unit 141a The device body 100 is almost within the projected area when viewed from the front side. On the other hand, in the state where the EVF module 200 is released (that is, the lock operation unit 141a is not locked), as shown in FIG. 2B, the lock operation unit 141a indicates the lock operation unit 141a as shown by the arrow R. It is in a state of protruding to the outside of the front projection surface of the device main body 100.

That is, the lock member 141a does not protrude from the outer shape of the housing 130 and the EVF module 200 in the locked state, and does not hinder the user from grasping the device main body 100. On the other hand, in the unlocked state, the lock member 141a protrudes from the outer shape of the housing 130 and the EVF module 200. Therefore, in this state, the protruding amount of the lock member 141a hinders the user from grasping the device main body 100, so that the user can easily know that the installation of the EVF module 200 on the device main body 100 is not completed. it can.

Here, FIG. 4 is a diagram illustrating a state in which the user holds (holds) the camera 1 according to the present embodiment and looks into the display unit 253 provided at substantially the center of the finder opening 251. .. As shown in FIG. 4, the user holds the entire camera 1 in a state where the EVF module 200 is attached to the device main body 100. The horizontal thickness D of the device body 100 is set so that the average adult can easily grasp it, and when the camera 1 is grasped, the index finger or middle finger of the user can be easily positioned on the upper surface side of the camera 1. The thickness D is limited by the thickness of the battery compartment 154 and the imaging unit 101, which will be described later. That is, the thicknesses of the battery compartment 154 and the imaging unit 101 are set so as to satisfy the above conditions.

While holding the camera 1, the user can operate each operation member provided on the upper surface side of the device main body 100 or the EVF module 200 with his / her index finger or middle finger. In addition, the user can check the information displayed on the display unit 253 by looking into the finder opening 251 at the rear end of the EVF module 200 with his or her own eyes. When the camera 1 is gripped and operated by the method described above, the lock operation unit 141a is located at a position that does not hinder the user from gripping the camera. Therefore, it is possible to prevent the lock operation unit 141a from being operated by an erroneous operation by the user and the lock state of the camera 1 from being released.

In the example illustrated in FIG. 4, the case where the user holds the camera 1 with the right hand is illustrated, but the camera 1 of the present embodiment is used even when the user holds the camera 1 with the left hand. The index finger, middle finger, and the like are arranged in a place where it is difficult to touch the lock operation unit 141a. Specifically, the axis orthogonal to the optical axis Z of the optical system of the imaging unit 101 included in the device body 100 is defined as the X axis, which is orthogonal to the X axis and is substantially the center O of the thickness D of the device body 100 in the X axis direction. Let the axis passing through be the Y axis. In this case, as shown in FIG. 1B, the housing (first housing) 130 of the device main body 100 and the housing (second housing) 230 of the EVF module 200 have the Y-axis in the Z-axis direction. It has a substantially symmetrical shape with respect to the stretched surface. Therefore, the camera 1 according to the present embodiment can prevent the camera 1 from being accidentally released from the locked state regardless of the hand held by the user.

Next, the internal configuration of the device main body 100 will be described with reference to FIGS. 5 and 6. FIG. 5 is a diagram illustrating an example of the internal configuration of the device main body 100 according to the embodiment of the present invention. FIG. 5A shows a split perspective view of the device main body 100, and FIG. 5B shows a perspective view of the battery compartment 154 as viewed from the side where the battery 300 is arranged. Further, FIG. 6 is a cross-sectional view of the device main body 100 according to the embodiment of the present invention, which is an arbitrary cross-sectional view including a cross section of the connector portion 120 parallel to the insertion / removal direction of the connector portion 120 toward the EVF module side. is there.

As shown in FIGS. 5 and 6, in the space formed by the housing 130 and the back surface 110, the circuit board portion 150, the first chassis 151a, the second chassis 151b, the first heat radiating portion 152, and the second heat radiating portion are formed. A portion 158, a holding member 153, and a lock member 141 are provided. In the circuit board section 150, the heat generated in the control circuit 157 in particular can be diffused to the outside of the housing 130 via the first heat dissipation section 152. Similarly, the heat generated by the image sensor 156 can be diffused from the housing 130 to the outside via the second heat radiating unit 158.

The image pickup unit 101 includes a substantially box-shaped support portion 155 that forms an appearance portion of the image pickup unit 101. Inside the support portion 155, various optical members (not shown) such as a plurality of lens groups and apertures constituting the imaging optical system are arranged. Then, as shown in FIG. 5, the surface of the support portion 155 on one end side of the support portion 155 is open for assembling the components to be included, and when the imaging unit 101 is viewed from the outside, it is described above. A part of various optical members can be visually recognized.

The battery compartment 154 is provided with a substantially cylindrical battery loading portion 154a having an open end surface, and a substantially rectangular parallelepiped battery 300 can be stored in the battery loading portion 154a. The battery 300 is arranged so that the longitudinal direction of the battery 300 is substantially parallel to the Z-axis direction of the imaging unit 101 (see FIG. 1B). With this configuration, even if the optical system constituting the imaging unit 101 is enlarged in the Z-axis direction due to high magnification or the like, the Z-axis direction coincides with the longitudinal direction of the battery 300, so that the device body 100 is perpendicular to the Z-axis. It is possible to suppress the increase in size in the direction. Further, by arranging the battery 300 as described above, the wide opening portion of the support portion 155 of the imaging unit 101 can be made to face the surface having the maximum area of the battery 300. That is, since one end surface of the battery compartment 154 covers the open side of the support portion 155, it is possible to suppress the intrusion of dust and unnecessary light into the inside of the image pickup unit 101.

Further, when assembling the device main body 100, since the opening portion of the support portion 155 is covered with the battery chamber 154, it is not necessary to provide a cover member for the support portion 155. Here, as shown in FIG. 5B, the corresponding portion of the battery compartment 154 that covers the opening portion of the support portion 155 is made of resin. With this configuration, the light incident from the imaging unit 101 is inadvertently reflected inside the device body 100, so that the occurrence of so-called ghosts in the image data at the time of imaging can be suppressed. The battery compartment 154 of the present embodiment has an uneven shape on the surface of the support portion 155 on the side covering the opening, as shown in FIG. 5B, in order to more efficiently suppress the generation of the ghost described above. The light-shielding line 154b and the light-shielding rib 154c are provided, and a fine uneven matte treatment is performed.

Further, the housing 130 of the device main body 100 has a substantially cup shape with the back side open, and an opening 160 for guiding the incident light to the image sensor 156 is provided in the front portion of the device main body 100 corresponding to the bottom of the cup shape. Have. Then, the battery 300 is supported on the inside (inner wall surface) of the area where the opening 160 is provided in the front portion of the listening main body 100 so that the battery 300 does not come out from the battery loading portion 154a of the battery chamber 154. ..

Further, since the imaging unit 101 and the battery compartment 154 are arranged in parallel, the image passing through the center O of the thickness D in the X-axis direction (see FIG. 1) indicating the horizontal direction of the device main body 100, and in the X-axis direction. The Z-axis is eccentric by the length L3 with respect to the vertical Y-axis. By intentionally shifting the Z-axis from the Y-axis passing through the center of the thickness D, the arrangement of the image pickup unit 101 and the battery compartment 154 is optimized, and the device without providing an unnecessary internal space inside the first housing 130. The size of the main body 100 has been reduced.

The device main body 100 according to the present embodiment does not have a mechanism that can be opened and closed, such as a so-called battery lid, for taking out the battery 300. That is, the battery 300 is fixed to the device main body 100. Therefore, it is possible to adopt a configuration in which the above-mentioned opening of the support portion 155 of the imaging unit 101 is directly covered with the battery 300 without using the wall surface of the battery chamber 154. With this configuration, the thickness of the device main body 100 in the X-axis direction can be further reduced by the thickness of the wall of the battery compartment 154.

The circuit board unit 150 is arranged at the rear end of the image pickup unit 101 and the battery compartment 154 arranged substantially in parallel. At the rear end of the image pickup unit 101, the image sensor 156, the control circuit 157, and the connector portion 120, which are the main electrical components, are arranged in order along the Z-axis direction, and the components are arranged in close proximity to each other. Therefore, it is possible to reduce the electrical loss due to the electrical connection.

A first heat radiating portion extends along the lens optical axis direction (Z axis) between the support portion 155 of the imaging unit 101 and the housing 130 of the device main body 100. A second heat radiating portion 158 extends along the lens optical axis direction (Z axis) between the surface of the battery compartment 154 opposite to the surface covering the imaging unit 101 and the housing 130.

With this configuration, since the first heat radiating section 152 and the second heat radiating section 158 are dedicated heat radiating sections for the control circuit 157 and the image sensor 156, respectively, heat transfer paths are not mixed and there are few heat generating points from the heat generating section. Heat transfer to the front side of the device body 100 can be efficiently performed.

Next, the internal configuration of the EVF module 200 will be described with reference to FIG. 7. FIG. 7 is a diagram illustrating an exemplary split perspective view of the EVF module 200 according to the embodiment of the present invention. The EVF module 200 includes a front surface portion 212, a substrate portion 213, a third chassis portion 214, a finder portion 250, and a housing (second housing) 230 in addition to the connector portion 210 and various operating members described above. The connector portion 210 connected to the substrate portion 213 is exposed to the outside of the EVF module 200 through the opening 212a formed in the front surface portion 212 of the EVF module 200. The configuration of the finder unit 250 is as described above.

A detection circuit (not shown) for detecting that the display unit 253, the third operation unit 291 and the fourth operation unit 292, and the fifth operation unit 293 have been operated is connected to the substrate unit 213.

Next, the mounting mechanism of the EVF module 200 on the device main body 100 will be described with reference to FIGS. 8 to 10. FIG. 8 is a partially disassembled perspective view showing a part of the device main body 100 according to the embodiment of the present invention from the back side. As shown in FIG. 8, the lock member 141 is arranged between the back plate 110 of the device main body 100 and the housing 130.

As described above, the lock member 141 is formed as an integral part of the lock operation portion 141a, the ring-shaped portion 141b, and the plurality of claw portions 141c provided inside the ring-shaped portion 141b. The plurality of claw portions 141c are bayonet claws used for bayonet coupling. The lock operation unit 141a and the ring-shaped unit 141b can rotate integrally, and the locked state (locked position) connected to the module 200 by bayonet coupling and the unlocked state (locked state) in which the EVF module 200 is unlocked. You can move between the release position). The lock member 141 is held urged toward the back side of the device main body 100 by the metal sphere 121 and its urging member (elastic member) 122, and gives a feeling of operation when the user operates the lock operation unit 141a. generate.

FIG. 9 is a cross-sectional view for explaining the transition between the locked state and the unlocked state of the device main body 100 and the EVF module 200 according to the embodiment of the present invention, in a plane orthogonal to the optical axis direction (Z axis). The cross section including the lock member 141 is shown. FIG. 9 (a) shows the lock member 141 in the lock position, and FIG. 9 (b) shows the lock member 141 in the unlock position. Further, FIG. 10 is a perspective view including the back side of the device main body 100 for explaining the transition of the locked state between the lock member 141 and the EVF module 200 according to the embodiment of the present invention. FIG. 10A shows a state in which the lock member 141 is in the locked position, and FIG. 10B shows a state in which the lock member 141 is in the unlocked position. In each of FIGS. 9 to 10, the parts unnecessary for the explanation of the bayonet connection between the device main body 100 and the EVF module 200 are not shown.

As shown in each of FIGS. 9 and 10, in the lock position, the plurality of claws 141c on the device body 100 side are in the optical axis direction with each of the plurality of claws 201a on the EVF module 200 side. Engage in (Z-axis direction).

This will be described in detail. In the optical axis direction (Z-axis direction), in the annular portion 201 of the EVF module 200, the plurality of claw portions 141c on the device body 100 side are inserted into each of the plurality of recesses formed between the plurality of claw portions 201a. A possible state is the unlocked position of the lock member 141.

From this state, the user rotates the lock operation unit 141a clockwise when viewed from the back side of the device main body 100 (toward the R direction shown in FIG. 2), thereby performing an optical axis direction (Z-axis direction). ), The transition to the engaged state of the plurality of claw portions 141c and the plurality of claw portions 201a occurs.

Further, by rotating the lock operation unit 141a, the lock member 141 is moved to the lock position when the device body 100 is viewed from the front and the lock operation unit 141a is substantially housed in the outer shape (projection surface) of the device body 100. Transition. At least, the protrusion amount of the lock operation portion 141a at the lock position of the lock member 141 may be smaller than the protrusion amount of the lock operation portion 141a at the lock release position of the lock member 141.

By rotating the lock operation unit 141a in the lock position counterclockwise when viewed from the back side of the device body 100, the lock member 141 moves to the unlock position, and the device body 100 and the module 200 are mounted. Is released.

Here, when the camera 1 is viewed from the upper surface side, the lock operation unit 141a and the third operation unit 191 are arranged at overlapping positions. The direction in which the user operates (presses) the third operation unit 191 and the direction in which the lock member 141 (lock operation unit 141a) is operated to the unlocked position are substantially opposite directions with respect to the optical axis. Become. This configuration prevents an erroneous operation in which the lock operation unit 141a moves to the unlocked position due to the user's operation (release operation) on the third operation unit 191 when the user grips the camera 1 for shooting. be able to.

Further, as shown in FIG. 1A, the third operation unit 291 protrudes from the outer shape of the housing 230 of the EVF module 200 by the amount of protrusion L1. On the other hand, as shown in FIG. 9A, the protrusion amount of the lock operation unit 141a protrudes by the protrusion amount L2 from the outer shape of the housing 130 of the device main body 100 at the unlocked position of the lock member 141. .. Comparing the protrusion amounts of both, the protrusion amount L2 of the lock operation unit 141a in the unlocked position (unlocked state) is larger than the protrusion amount L1 of the third operation unit 191. It is set (L2> L1).

With this configuration, for example, when the lock member 141 is in the unlocked position, even if the user tries to instruct the release operation to the third operation unit 191, the lock is completed due to the presence of the lock operation unit 141a having a large protrusion amount. It is possible to notify the user that it has not been done. Therefore, it is possible to prevent the user from performing the release operation when the EVF module 200 is not accurately mounted on the device main body 100.

(Internal configuration of camera system 1)
Next, with reference to FIG. 11, the functions of the modules constituting the camera 1 will be described. FIG. 11 is a circuit block diagram illustrating a state in which the EVF module 200 is mounted on the device main body 100 as an example. As shown in FIG. 11, the device main body 100 includes a CPU 100a as a control means for comprehensively controlling various operations of the device main body 100 and modules connected to the device main body 100. Further, the EVF module 200 includes the speaker I / F 240a in the signal input / output circuit to the speaker unit 240 described above. Further, the EVF module 200 is an operation input that controls the reception of signal input according to the operation by the user of the third operation unit 291 and the fourth operation unit 292 and the fifth operation unit 293 and the output of the control signal to the CPU 100a. It is equipped with an I / F 290a.

Further, the EVF module 200 includes an eyepiece detection IC 250a that controls the user's eyepiece detection operation on the finder unit 250 (that is, the display unit 253). Further, the EVF module 200 includes a display control IC (CVFIC) 250b that controls the display of information (image data) in the finder unit 250 (that is, the display unit 253).

Here, the device main body 100 and the EVF module 200 can be electrically connected via the connector portion 120 and the connector portion 210 described above. Each of the connector portion 120 and the connector portion 210 includes a plurality of terminals that can be electrically connected to each other along the longitudinal direction of the connector portion. Specifically, the device main body 100 and the EVF module 200 have terminals A1 to A20 and second surfaces (B surface) on the first surface (A surface) orthogonal to the insertion / extraction direction of the connector unit 210 with respect to the connector unit 120. Is provided with terminals B1 to B20. The arrangement of each terminal will be described later with reference to FIG.

FIG. 12 is a simplified rear view of the EVF module 200 according to the present embodiment, and is a diagram illustrating the details of the connector portion 210 exemplarily. FIG. 12A is a diagram illustrating each surface (terminal surface) on which a plurality of terminals constituting the connector portion 210 are arranged, and FIG. 12B is a diagram showing the connector portion 210 when foreign matter is attached. It is a figure for exemplifying. As shown in FIG. 12A, the first surface 210a and the second surface 210b of the EVF module 200 are parallel surfaces to each other. The connector portion 210 includes two surfaces (210c, 210d) connecting the first surface 210a and the second surface 210b.

As shown in FIG. 12B, the first surface 210a and the second surface 210b each have a wall portion at the end of the terminal surface, and the wall portion with respect to the terminal surface is the EVF module 200. The amount of protrusion in the vertical direction is large. With this configuration, for example, when foreign matter adheres to the terminal surface of the connector portion 210, a shape that can suppress the foreign matter from adhering to the entire terminal surface and reduce an electrical short circuit between the terminals is adopted. ing. The configuration of the connector unit 210 described above is substantially the same as the connector unit 120 on the device body 100 side except for the difference in the shape of the connector. Of the plurality of terminals included in the device body 100 and the EVF module 200, the CPU 100a The speaker I / F 240a is electrically connected to the speaker I / F 240a using the terminal A3 and the terminal A4. Further, the CPU 100a and the operation input I / F 290a are electrically connected to each other by using the terminals B3 and the terminals B10 to B12. Further, the CPU 100a and the eyepiece detection IC 250a are electrically connected using the terminals B4 to B9. Further, the CPU 100a and the display control IC 250b are electrically connected using terminals A6, terminals A8 to A10, terminals A13 to A18, and terminals B14 to B18. In addition, the GND terminals corresponding to terminals A1, A2, A5, A7, A11, A12, A19, A20, B1, B2, B13, B19, and B20 are ground-connected to the device body 100 and the entire EVF module 200 to set the reference potential. It is common. The above-mentioned ground terminal may be any one that shows a reference potential as the ground level of the voltage.

(Details of terminal arrangement)
Hereinafter, with reference to FIG. 13, the arrangement and function of the plurality of terminals included in the device main body 100 and the EVF module 200 will be described in detail. FIG. 13 is a diagram illustrating an arrangement of a plurality of terminals used for electrical connection included in the camera system 1 according to the present embodiment. In FIG. 13, the right side shows the above-mentioned first surface, and the left side shows the above-mentioned second surface. For example, when the connector portion 120 is viewed from the back side of the device main body 100, the terminals A1 to A20 (right side of the paper surface) are the first surface 120a, and the terminals B1 to B20 side (left side of the paper surface) are the second surface. It is 120b. Then, when the connector portion 120 is viewed from the back side of the device main body 100, the side where the terminals A1 and B1 are arranged (upper side of the paper) corresponds to the right end portion of the connector portion 120, and the terminals A20 and B20 are arranged. The side (lower side of the paper surface) corresponds to the left end portion of the connector portion 120. Regarding the connector portion 210 on the EVF module 200 side, when the EVF module 200 is viewed from the front side, the terminals corresponding to the right end portion and the left end portion of the connector portion 210 are replaced with the connector portion 120 described above.

First, the arrangement and function of each of the plurality of terminals arranged on the first surface will be described. The arrangement of the plurality of terminals described below is common to both the first surface 120a of the connector portion 120 of the device main body 100 and the first surface 210a of the connector portion 210 of the EVF module 200. To do. As shown in FIG. 13, terminals A6 to A20 and terminal numbers B14 to B20 are terminals corresponding to a communication interface (hereinafter, simply referred to as IF) with the display control IC 250b. Of these, terminals A13 to A20 are a group of terminals used for transmitting and receiving image data between the device main body 100 and the EVF module 200. Further, among these, the pair of the terminal A13 and the terminal A14, and the terminal A17 and the terminal A18 are a group of communication terminals used for transmission of a differential signal. Further, the terminals A15 and A16 are clock signal terminal groups for the above-mentioned differential signals. Further, the terminal A19 and the terminal A20 are ground terminals indicating the reference potential of the above-mentioned differential signal.

Next, terminals A6 to A12 are a group of terminals related to power supply from the device main body 100 to the EVF module 200. Of these, terminals A6 and A9 and A10 are display power supply terminals used for the operation of the display control IC 250b. Further, the terminals A7 and the terminals A11 and A12 are ground terminals showing reference potentials corresponding to the terminals A6, A9 and A10. That is, the power supply terminal A6 and the terminals A9 and A10 are adjacent to the ground terminal, respectively. Since this configuration reduces the current loop area, it is possible to reduce the magnetic flux when a current flows, which is effective in reducing the noise generated in relation to the power supply between the modules.

Next, the terminal A8 is a reset signal terminal for display control between the device main body 100 and the EVF module 200, and changes the voltage level to the LOW level according to the on / off of the power supply of the display control IC 250b. Therefore, it is arranged together with the terminals A9 and A10 used for supplying power for the display of the display unit 253. Specifically, the terminals A8 to A10 are arranged next to each other in order between the ground terminals A7 and A11.

Next, terminals A1 to A5 are a group of terminals related to the exchange of sounding signals in the speaker unit 240. Of these, the terminals A3 and A4 are two terminals and are a set of differential signal terminals, which are terminals for outputting audio signals from the device main body 100 to the EVF module 200 side. Further, the terminals A1 to A2 and the terminal A5 are ground terminals indicating the reference potential corresponding to the audio output terminal described above.

Next, the arrangement and function of each of the plurality of terminals arranged on the second surface will be described. The arrangement of the plurality of terminals described below is common to both the second surface 120b of the connector portion 120 of the device main body 100 and the second surface 210b of the connector portion 210 of the EVF module 200. To do.

The terminals B14 to B20 are a group of terminals mainly used for performing SPI (Serial Peripheral Interface) communication between the display control IC 250b and the CPU 100a. Of these, the terminal B14 is a terminal used for communication of the chip select signal of the display control IC. Further, the terminal B15 is a terminal used for communication of a clock signal related to SPI communication.

Further, the terminals B16 and B17 are terminals used for data signal communication of SPI communication, the terminal B16 is a terminal used for data communication from the CPU 100a to the display control IC 250b, and the terminal B17 is a terminal used for data communication from the display control IC 250b to the CPU 100a. is there. Further, the terminal B18 is a terminal used for communication of an enable signal for each IC for converting the image data format output by the CPU 100a and the image data format received by the display control IC 250b. Further, the terminal B19 and the terminal B20 are ground terminals used to indicate a reference potential related to SPI communication.

Next, terminals B4 to B9 are terminals for communication lines connected to the eyepiece detection IC 250a. Of these, terminals B4 to B6 are terminals used for supplying power to the eyepiece detection IC 250a from the device main body 100 side. Further, the terminal B7 is a terminal for a clock signal used for performing so-called I2C (Inter Integrated Circuit) communication between the CPU 100a and the eyepiece detection IC 250a, and the terminal B9 is a communication for a data signal related to the I2C communication. It is a terminal. Further, the terminal B8 is a terminal used for communicating an interrupt signal output to the CPU 100a when the eyepiece of the subject is detected by the eyepiece detection IC 250a. The ground terminals for indicating the reference potentials corresponding to the terminals B4 to B6 correspond to the terminals B1 and B2, and the terminals A1 and A2. Of these, the terminals A1 and A2 also serve as ground terminals for speakers, as described above.

Next, the terminals B3 and B10 are signal terminals used for signal communication associated with the operation of buttons and the like provided on the camera 1. Of these, the terminal B3 corresponds to the pressing of the button related to the instruction to start / end the recording of the moving image, and the terminal B10 corresponds to the pressing of the button related to the instruction to adjust the focal length. Further, the terminals B11 and B12 are also signal terminals used for signal communication associated with the operation of buttons and the like provided on the camera 1. Of these, the terminal B12 corresponds to the half-press operation of the release (that is, the instruction of the shooting preparation operation), and the terminal B11 corresponds to the full-press operation of the release button (that is, the instruction of the shooting operation). Further, the terminal B13 is a ground terminal indicating a reference potential corresponding to each terminal related to the operation of the button or the like described above. Hereinafter, the effects related to the arrangement of the plurality of terminals described above will be described.

(Arrangement of power supply terminals)
The terminals (A6, A9 to A10, B4 to B6) for supplying power from the device body 100 side to the EVF module 200 side are located at the center of the terminal arrangement of a plurality of terminals (that is, between the terminals A10 / B10 and the terminals A11 / B11). ), It is moved to one side. The side (upper side in FIG. 13) where the above-mentioned power supply terminal is brought is, for example, the right side of the connector portion 120 when the device main body 100 is viewed from the back side, and is inside the device main body 100. , Corresponds to the side where the battery compartment 154 is arranged. That is, one side (first side) close to the power supply terminal is located closer to the power supply area such as 154 that knows the battery than the other side (second side).

With this configuration, since the power supply terminal is arranged at a position in consideration of the power supply and the circuit and wiring arrangement for the power supply and the power supply inside the device main body 100, the electrical loss can be reduced.

(Arrangement of communication terminals for periodic signals)
Of the plurality of terminals arranged on the camera 1, terminal B7 and terminal B9, terminal B15, terminal A15, and terminal A16 are functions used for transmitting periodic signals between the device main body 100 and the EVF module 200, respectively. It is a terminal connected to different signal lines. For example, assuming that these terminals for communicating periodic signals are placed next to each other, signal lines operating at high frequencies are affected by each other's signal noise, so that a malfunction may occur depending on the role of each signal line. There is.

Therefore, in the camera 1 according to the present embodiment, the terminals used for the communication of the periodic signals described above are not adjacent to each other (that is, at least one or more other terminals are arranged between them), so that the signal lines are separated from each other. It is possible to reduce the influence of noise and prevent malfunction of the device. Since the terminal A15 and the terminal A16 are a set for a differential signal, the influence of noise received from other signal lines on the differential signal can be reduced by arranging both terminals next to each other.

Of the terminals corresponding to the communication terminals of the plurality of terminals included in the camera 1, the terminals B7 and B9 have a shielding effect due to the ground terminal, unlike the other communication terminals of the plurality of terminals. It is arranged in a small position. In other words, the terminals B7 and B9 are not arranged adjacent to the ground terminal. This is because the terminals B7 and B9 are not connected to the signal lines operating at high frequencies, unlike the above-mentioned communication terminals for periodic signals, and the influence of noise caused by their adjacency is small. Therefore, by arranging the terminal groups B7 to B9 connected to the eyepiece detection IC 250a of the EVF module 200 next to each other in order, priority is given to improving the efficiency of the configuration in the module such as wiring.

(Arrangement of communication terminals for differential signals)
Of the plurality of terminals arranged on the camera 1, as described above, the terminals A13 to A18 are a set of adjacent terminals (terminal A13 and terminal A14, terminal A15 and terminal A16, terminal A17 and terminal A18). It is an image data communication terminal for a differential signal. Due to the nature of the differential signal, it is necessary to detect the difference between the signals transmitted from each of the set of terminals. Therefore, if noise affects the signal line that transmits this differential signal, for example, the EVF module 200 can be used by the user. There are adverse effects such as deterioration of the quality of the image data viewed by the user.

Therefore, in the camera 1 according to the present embodiment, the terminals A12 and A19 are used as ground terminals, and the communication terminal group for the differential signal is arranged so as not to be adjacent to the signal terminals other than the ground terminal. This also applies to the terminals A3 and A4, which are differential signal terminals for speakers.

Further, among the plurality of terminals arranged on the camera 1, the number of terminals connected to the signal lines connected to the CPU 100a and the display control IC 250b is the largest, and if the terminals are separated from each other, the wiring inside the device is provided. Is complicated and causes unintended noise and an increase in power loss.

Therefore, in the present embodiment, the communication terminals (terminals A13 to A18, terminals B14 to B17) connected to the display control IC 250b are divided into both the first surface and the second surface, and the positions on both sides are substantially the same. By arranging it in, the terminals for communication used for display control are integrated. Specifically, when each connector portion (120, 210) is viewed from one side of the first surface or the second surface, communication terminals used for display control are superimposed and arranged (terminals A14 to A14). A17 and terminals B14 to B17).

With the configuration described above, the wiring efficiency inside the device is improved while effectively suppressing the deterioration of the quality of the image displayed on the display unit 253 and the sound sounded from the speaker unit 240 in the EVF module 200. be able to.

The configuration of the present invention is not limited to that illustrated in the above embodiment, and the material, shape, dimensions, form, number, arrangement location, etc. can be appropriately changed as long as the gist of the present invention is not deviated. .. For example, the module that can be attached to the device main body 100 is not limited to the EVF module 200, and various modules can be connected.

When a module other than the EVF module 200 can be connected to the device main body 100, the types of a plurality of terminals arranged in the device main body 100 and each connector portion of the module can be changed as appropriate. For example, when the module that can be attached to the device main body 100 does not have a speaker unit, at least the module does not have to have terminals A3 and A4 corresponding to SP- and SP +. Alternatively, the terminals A3 and A4 may be used as NC (NON-CONNECT) terminals so that there is no electrical connection with the internal circuit, or the terminals themselves may not be provided. That is, the device main body 100 and the module that can be connected to the device main body 100 may be configured to appropriately include terminals according to the intended use of the module. Regardless of which module is installed, the power supply terminals of terminals B4 to B6 used to supply the drive power of the various microcomputers of the module and the ground terminal corresponding to the power supply terminal are provided. It is preferable to have it.

As an example of the electronic device for carrying out the present invention, an image pickup device provided with an image pickup unit is assumed, and the image pickup device includes various types such as a digital camera, a digital video camera, a wearable terminal, an in-vehicle camera and a security camera. It is supposed to be an image pickup device.

1 Camera system 100 Equipment body (imaging device)
101 Imaging unit 120 Connector unit 200 Module 210 Connector unit

Claims (11)

An electronic device that has a detachable module with a display and an imaging unit.
A second connector portion that can be inserted and removed from the first connector portion provided on the module and that can be electrically connected to the first connector portion according to the attachment / detachment of the module to the electronic device.
A plurality of terminals provided in the second connector portion are provided.
One of the plurality of terminals is arranged on a first surface orthogonal to the insertion / extraction direction of the second connector portion and a second surface parallel to the first surface.
The plurality of terminals have a first terminal group for communication used for controlling the display unit, a second terminal group composed of terminals different from the first terminal group, and a reference potential of voltage. Including multiple ground terminals, shown
The first terminal group is a communication terminal provided on the first surface and used for transmission of a differential signal.
The second terminal group is a communication terminal provided on the second surface and used for transmission of a signal different from a differential signal.
When the second connector portion is viewed from the first surface, the first terminal group and the second terminal group are arranged at overlapping positions.
The first terminal group is an electronic device characterized in that it is arranged adjacent to any one of the plurality of ground terminals. The plurality of terminals include a plurality of power supply terminals used for power supply to the module in a state where the module is mounted on the electronic device.
The plurality of power supply terminals are arranged on the first side of the first side and the second side divided at the center of the array of the plurality of terminals.
The electronic device according to claim 1, wherein the plurality of terminals are arranged along the longitudinal direction of the connector portion. Equipped with a battery compartment that can store batteries
The electronic device according to claim 2, wherein the first side is located closer to the battery compartment than the second side. The plurality of terminals are terminals different from the first terminal group and the second terminal group, and the module is mounted on the electronic device between the electronic device and the module. It has a first terminal and a second terminal used for transmitting periodic signals.
Any of claims 1 to 3, wherein the first terminal is arranged with at least one or more other terminals of the plurality of terminals sandwiched between the first terminal and the second terminal. The electronic device according to item 1. The electronic device according to any one of claims 1 to 4, wherein the second terminal group is arranged adjacent to any one of the plurality of ground terminals. The plurality of terminals are terminals different from the first terminal group in the first surface, and include a third terminal group used for transmission of a differential signal.
The electronic device according to any one of claims 1 to 5, wherein the third terminal group is arranged adjacent to any one of the plurality of ground terminals. A module that can be attached to and detached from an electronic device equipped with an imaging unit and has a display unit.
With the module mounted on the electronic device, a second connector portion that is inserted into a second connector portion provided on the electronic device and can be electrically connected to the first connector portion, and a second connector portion.
A plurality of terminals provided in the second connector portion are provided.
One of the plurality of terminals is arranged on a first surface orthogonal to the insertion / extraction direction of the second connector portion and a second surface parallel to the first surface.
The plurality of terminals have a first terminal group for communication used for controlling the display unit, a second terminal group composed of terminals different from the first terminal group, and a reference potential of voltage. Including multiple ground terminals, shown
The first terminal group is a communication terminal provided on the first surface and used for transmission of a differential signal.
The second terminal group is a communication terminal provided on the second surface and used for transmission of a signal different from a differential signal.
When the second connector portion is viewed from the first surface, the first terminal group and the second terminal group are arranged at overlapping positions.
The first terminal group is a module characterized in that it is arranged adjacent to any one of the plurality of ground terminals. The plurality of terminals include a plurality of power supply terminals used for power supply from the electronic device to the module in a state where the module is mounted on the electronic device.
The plurality of power supply terminals are arranged on the first side of the first side and the second side divided at the center of the array of the plurality of terminals.
The module according to claim 7, wherein the plurality of terminals are arranged along the longitudinal direction of the connector portion. The plurality of terminals are terminals different from the first terminal group and the second terminal group, and the module is mounted between the module and the electronic device in a state where the module is mounted on the electronic device. It has a first terminal and a second terminal used for transmitting periodic signals.
The seventh or eighth aspect of the present invention, wherein the first terminal is arranged with at least one or more other terminals of the plurality of terminals sandwiched between the first terminal and the second terminal. Module. The module according to any one of claims 7 to 9, wherein the second terminal group is arranged adjacent to any one of the plurality of ground terminals. The plurality of terminals are terminals different from the first terminal group in the first surface, and include a third terminal group used for transmission of a differential signal.
The module according to any one of claims 7 to 10, wherein the third terminal group is arranged adjacent to any one of the plurality of ground terminals.

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