JP2018025737A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic device capable of reliably mounting a plurality of modules and electrically connectable.SOLUTION: An electronic device can be used by mounting various modules on a device main body 100 which is a camera module, and is electrically connected by each of connectors 120 and 210. The device main body 100 has a concave connection terminal, and the module has a convex connection terminal which is engaged with the connection terminal of the device main body 100. The device main body 100 has a connection terminal connected to a terminal included in the module, and includes a power source (VBAT) terminal group on a first surface, and includes a ground (GND) terminal group on a second surface at the opposite side and a terminal group (A1 to A3) associated with an external communication interface. This terminal group has a terminal group (A1 and A2) making a pair used for transmitting a differential signal and a ground terminal (A3). The communication terminal group (A4 to A10) with a power source module 200 is adjacent to the ground terminal.SELECTED DRAWING: Figure 17

Description

  The present invention relates to mounting and dismounting of modules and electrical connection in an electronic device that can be used by mounting the modules.

  In an imaging apparatus such as a digital camera, an image signal output from an imaging element, image information, and the like are recorded as a data file. The photographing lens forms an optical image on the image sensor, and image data obtained by photoelectric conversion in the image sensor is subjected to compression processing in a file format such as JPEG (Joint Photographic Experts Group).

  In an electronic device including an imaging device, a so-called module-replaceable electronic device having a desired function can be realized by reassembling a module having a predetermined function by collecting a plurality of parts into a block. . Japanese Patent Application Laid-Open No. 2004-133620 discloses a technique that can achieve both improvement in usability and secure fixing of a module without using a fastener by using an electromagnetic attachment / detachment mechanism for attaching / detaching a module.

  Japanese Patent Application Laid-Open No. 2004-228561 discloses a technique for attaching / detaching an interchangeable lens to / from a main body of an imaging apparatus. A lens mount is provided for the user to attach / detach the interchangeable lens having the bayonet claw portion (112) to / from the main body of the imaging apparatus. The user rotates the movable mount portion around the optical axis from the state where the bayonet claw portion and the claw portion (241) of the movable mount portion do not overlap on the optical axis projection. As a result, the movable mount portion moves to the first fixed portion (210) along the optical axis direction in accordance with the screwing of the female screw portion formed on the fixed mount portion (220) and the male screw portion formed on the movable mount portion. The claw portion and the bayonet claw portion come into contact with each other.

Special table 2014-508998 gazette JP2013-218149A

  In the configuration disclosed in Patent Document 1, the weight of each accessory module including the weight of the electromagnet is increased. For this reason, there is a possibility that the user may accidentally drop the electronic device itself, and there is no physical pressing at the time of dropping, so there is a concern that each accessory module may fall off from the device main body.

Further, in the configuration disclosed in Patent Document 2, the accessory module can be securely fixed, but it is difficult to avoid the increase in size of the device due to screw movement of the movable mount portion and attachment of the operation member of the movable mount portion. It is. In module-replaceable electronic devices, positioning, short-circuit prevention measures, noise reduction, and the like are important when electrical connection is made between module devices using connectors.
It is an object of the present invention to provide an electronic device that can be securely connected by mounting a plurality of modules reliably.

  An apparatus according to an embodiment of the present invention is an electronic device that can be connected to a module, and includes a connection terminal portion that is electrically connected to a terminal portion included in the module, and the connection terminal portion is connected to a connection surface. Among them, a power supply terminal group is provided on the first surface, a ground terminal group on the second surface opposite to the first surface, a communication terminal group used for communication with the module, and the communication terminal group Comprises a first terminal group corresponding to different external communication interfaces. The first terminal group includes a pair of terminal groups used for differential signal transmission and a ground terminal serving as a reference for the differential signal, and is opposite to the positive terminal in the pair of terminal groups. The communication terminal group is adjacent to the ground terminal arranged on the side.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which can mount | wear with a some module reliably and can be electrically connected can be provided.

It is an external appearance perspective view of the electronic device which concerns on embodiment of this invention. It is a perspective view which removes a module from an apparatus main body and shows from the front side. It is a perspective view which removes a module from an apparatus main body and shows from the back side. It is a disassembled perspective view of an apparatus main body. It is a disassembled perspective view which shows the back part of an apparatus main body. It is a disassembled perspective view which decomposes | disassembles and shows a part of apparatus main body. It is a figure explaining a lock position and a non-lock position. It is a perspective view explaining the relationship between a locking member and a module. It is a disassembled perspective view of a module. It is a schematic diagram which illustrates the usage form of an apparatus main body and a module. It is a perspective view which shows the specific example of FIG. 10 from the back side. It is a perspective view which shows the specific example of FIG. 10 from the front side. It is a perspective view which illustrates another example of the usage form of an apparatus main body and a module. It is a perspective view which shows the apparatus main body and module of FIG. 13 from the front side. It is a schematic diagram which shows an apparatus main body and a module from the front side. It is a table | surface which shows arrangement | positioning of the terminal group of a module. It is a table | surface which shows arrangement | positioning of the terminal group of an apparatus main body. It is a table | surface which shows arrangement | positioning of the terminal group of a relay module. It is a circuit block diagram which shows an apparatus main body and a power supply module. It is a circuit block diagram which shows an apparatus main body, a relay module, and a power supply module. It is a circuit block diagram explaining the identification function of the module by an apparatus main body.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The electronic device according to the present invention is a module-replaceable electronic device that can be used by mounting the second device on the first device. Hereinafter, the first device will be described as a main body of an electronic device, and the second device will be described as a module device.

  In the present embodiment, the module 200 can be attached to and detached from the device main body 100 by turning the lock member. FIG. 1 is a perspective view of a state in which the module 200 is attached to the device main body 100 according to the present embodiment as viewed from the front side. FIG. 2 is a perspective view of the state in which the module 200 is removed from the device main body 100 when viewed from the front side. FIG. 3 is an exploded perspective view of the state in which the module 200 is removed from the device main body 100 when viewed from the back side. FIG. 4 is an exploded perspective view of the device main body 100. The device main body 100 is a camera module, and the module 200 is a power supply module having a battery.

  The device main body 100 includes an imaging unit 101 exposed on the front surface. The imaging unit 101 includes an optical member such as a lens and a diaphragm constituting an imaging optical system, and an imaging element. Hereinafter, the upper surface forming the casing 130 of the device main body 100 is defined as the first surface S1. Of the plurality of side surfaces substantially orthogonal to the front surface of the housing 130, the side surface close to the front surface on which the imaging unit 101 is disposed is the second surface S2, and the side surface of the housing 130 that is different from the second surface S2 is the first surface. 3 plane S3. In addition, the device main body 100 is provided with a connector unit 120 described later on the back surface opposite to the front surface on which the imaging unit 101 is exposed. Therefore, in the apparatus main body 100, the first surface S1 to the third surface S3 described above are different from the front surface and the back surface described above. In the present embodiment, the second surface S2 is a right side when viewed from the front side, and the third surface S3 is a left side when viewed from the front side. A surface S4 formed around the front surface is a tapered surface. The second surface S2 is not adjacent to the third surface S3, and the imaging unit 101 is located in the vicinity of the first surface S1 and the second surface S2. In addition, the imaging part 101 should just be located in the front surface of the apparatus main body 100 at least near the 1st surface S1 (for example, center upper position etc.).

  A lock operation unit 141 a and operation members 151 and 152 are disposed as operation members on the side surface of the casing 130 of the device main body 100. The lock operation unit 141a is a lock lever provided integrally with a lock member 141 described later. The lock operation unit 141a is disposed in the vicinity of the third surface S3 that is not adjacent to (but not adjacent to) at least one of the first surface S1 and the second surface S2. In the present embodiment, since the lock operation unit 141a is disposed in the vicinity (corner) of the first surface S1 and the third surface S3, the lock operation unit 141a is not adjacent to the second surface S2. . As shown in FIG. 1, in a state in which the module 200 is mounted on the device main body 100, the lock operation unit 141a is almost within the projected area when the device main body 100 is viewed from the front side. In the state of FIG. 2 in which the module 200 is released from the apparatus main body 100, the lock operation unit 141a has moved to a position protruding outward from the projection area as indicated by an arrow R.

  The operation members 151 and 152 are disposed on the first surface S1. The operation member 151 close to the lock operation unit 141a is an operation member for outputting an operation signal corresponding to the user's operation, and in this embodiment, is a release button used when the user instructs imaging of the subject. The operation member 152 is an operation member for outputting an operation signal different from that of the operation member 151. The operation member 152 is disposed closer to the imaging unit 101 than the operation member 151, that is, a position closer to the optical axis of the imaging optical system.

  A chassis 140, a circuit board part 150, a heat radiating part 160, a holding member 170, and a lock member 141 are provided in an internal space formed by the casing 130 and the back plate 110 of the device main body 100 (FIG. 4). The heat generated in the circuit board unit 150 can be diffused to the module 200 side through the heat radiating unit 160.

  The module 200 includes a housing that can be connected to the device main body 100 by bayonet coupling. The module 200 has an annular portion 201 on the front surface portion connected to the device main body 100. A plurality of claw portions 201 a are formed in the annular portion 201 in the circumferential direction, and engage with the plurality of claw portions formed on the lock member 141, respectively. The module 200 has a connector part 210 inside the annular part 201. The connector unit 210 is electrically connected to the connector unit 120 (FIG. 3) provided in the device main body 100. In this embodiment, the connector part 210 of the module 200 is a plug protruding forward, and the connector part 120 of the device main body 100 is a jack.

  The plurality of engaging protrusions 230 provided on the front surface portion of the module 200 are engaging pins respectively disposed on the left and right sides of the connector portion 210 outside the annular portion 201. Engagement recesses 123 (FIGS. 3 and 5) respectively corresponding to the plurality of engagement projections 230 are formed on the back surface of the apparatus main body 100, and the engagement projections 230 are engaged with the engagement recesses when the module 200 is mounted. 123 is engaged. The plurality of engaging convex portions 230 have a role of a guide leading when the user attaches the module 200 to the device main body 100 and a role of safely and reliably connecting the connector portion 210. Further, the plurality of engaging convex portions 230 serve to protect the connector portion 210. Since the protruding amount of the engaging convex portion 230 is larger than the protruding amount of the connector portion 210 with reference to the front surface of the module 200, for example, it is possible to avoid the impact due to the dropping of the module 200 or the like from being directly applied to the connector portion 210. Further, in the module 200, concave portions 240 and 250 (FIG. 2) are formed on the contact surface with the apparatus main body 100 so as to be fitted with convex portions provided in another module device (not shown). Since the apparatus main body 100 is not provided with convex portions corresponding to the concave portions 240 and 250, the other module devices and the apparatus main body 100 can be distinguished on connection. Other module devices will be described later with reference to FIGS.

  FIG. 5 is an exploded perspective view in which a part of the device main body 100 is disassembled and shown from the back side. FIG. 6 is an exploded perspective view showing the periphery of the lock member 141 and the heat radiating portion 160. A lock member 141 is disposed between the back plate 110 of the device main body 100 and the housing 130. The lock member 141 is formed by integrating a lock operation portion 141a, an annular shape portion 141b, and a plurality of claw portions 141c provided on the inside thereof. The claw portion 141c is a bayonet claw. The lock operation portion 141a and the annular shape portion 141b rotate integrally. The lock member 141 moves between a locked position connected to the module 200 by bayonet coupling and an unlocked position (unlocked position) in which the lock with the module 200 is released. The lock member 141 is configured to be held in the locked position or the unlocked position by the metal sphere 121 and its biasing member (elastic member) 122.

  FIG. 7 is a cross-sectional view seen from the back side for explaining the locked position and the unlocked position of the lock member 141. FIG. 7A shows the lock member 141 in the locked position, and FIG. 7B shows the lock member 141 in the unlocked position. FIG. 8 is a perspective view showing the engagement relationship between the lock member 141 and the module 200 from the front side. 8A shows a state where the lock member 141 is in the locked position, and FIG. 8B shows a state where the lock member 141 is in the unlocked position. In the camera 100 and the module 200, portions not directly related to the gist of the present invention are not shown.

  The lock member 141 is in a state in which the plurality of claw portions 141c are respectively engaged with the plurality of claw portions 201a formed in the module 200 at the lock position. At this time, the lock operation unit 141a does not protrude outside the projected area when the device main body 100 is viewed from the front side, and the protruding amount at the locked position is smaller than the exposed amount at the unlocked position. When the user operates the lock operation unit 141a and the lock member 141 rotates counterclockwise in FIG. 7, the engagement between the apparatus main body 100 and the module 200 is released. At this time, the lock operation unit 141a is in a state of protruding out of the projection area when the device main body 100 is viewed from the front side. In other words, the lock operation portion 141 a that is extended and formed on the lock member 141 protrudes from the outer shape of the device main body 100 at the unlocked position of the lock member 141.

  FIG. 9 is an exploded perspective view illustrating a configuration example of the module 200. The module 200 includes a front surface portion 212, a substrate portion 213, a battery portion 216, and a cover member 218. The connector part 210 provided on the board part 213 is exposed to the outside through an opening 212 a formed in the front part 212.

  In the present embodiment, the imaging unit 101 is arranged in the vicinity of the first surface S1 and the second surface S2 in the housing 130 of the device main body 100, and the lock operation unit 141a includes the first surface S1 and the third surface. It is arranged in the vicinity of S3 (FIGS. 1 and 2). For example, even when an attachment is attached to the lens of the imaging unit 101, the user can operate the lock operation unit 141a. The attachment is, for example, a lens hood, a wide-angle attachment that widens the angle of view that can be photographed, a fish-eye attachment that enables fish-eye photography, and the like, and can be attached to the imaging unit 101. The user does not need to perform complicated operations regarding the attachment / detachment between the device main body 100 to which the attachment is attached and the module 200. Further, in application to a small camera module, it is possible to suppress as much as possible damage to the lens and adhesion of fingerprints to the front surface of the lens when the user operates the lock operation unit 141a.

  Next, with reference to FIG. 1 thru | or FIG. 7, the relationship between the lock operation part 141a and the operation member 151 is demonstrated. The operation member 151 is disposed on the first surface S1 of the device main body 100, and the protruding amount is denoted as L1 (FIG. 1). The operation member 151 according to the present embodiment is a release button used by a user for an imaging instruction, and the operation direction P is a push-in direction (FIG. 2).

  With respect to the protrusion amount of the lock operation unit 141a, the protrusion amount from the outer shape of the device main body 100 (hereinafter referred to as L2) is substantially zero at the lock position in FIG. . On the other hand, in the unlocked position of FIG. 7B, the protrusion amount L2 of the lock operation portion 141a is larger than the protrusion amount L1 of the operation member 151 (L2> L1). At this time, when the device main body 100 is viewed from the first surface side (upper side), the lock operation unit 141 a is in a position overlapping the operation member 151. The direction in which the user operates the lock operation unit 141a when performing the unlocking operation is a direction in which the lock operation unit 141a protrudes from the first surface S1.

  For example, it is assumed that a release operation is performed in an unlocked state and an imaging operation is performed. In this case, if the connection between the apparatus main body 100 and the module 200 is unexpectedly released, there is a possibility that the captured image cannot be recorded because the power supply is not performed. In the present embodiment, it is possible to prevent an erroneous operation on the device main body 100 in an unlocked state (unlocked state). That is, the operation direction of the lock operation unit 141a when releasing the lock is substantially opposite to the operation direction (push-in direction) of the operation member 151. Even if the user accidentally touches the lock operation unit 141a when the user operates the operation member 151 in the pushing direction, the lock operation unit 141a is not unlocked, which is effective in preventing an erroneous operation. In the unlocked state, the protrusion amount of the lock operation portion 141a is larger than the protrusion amount of the operation member 151 with reference to the first surface S1. For this reason, it is possible to prevent the user from performing a release operation on the operation member 151 in the unlocked state.

  The operation member 152 is located closer to the optical axis of the imaging unit 101 than the operation member 151 on the first surface S <b> 1 in the apparatus main body 100. Therefore, when the user operates the operation member 152, there is almost no possibility of erroneous operation due to the finger touching the lock operation unit 141a. Note that the operation member 152 is less frequently operated during photographing than the operation member 151. That is, when it is necessary to arrange the operation member 151 having a higher operation frequency during photographing close to the protruding position of the lock operation unit 141a in the unlocked state, an unintended operation by the user in the unlocked state is input. Can be suppressed.

  In this embodiment, the backlash between the apparatus main body 100 and the module 200 can be suppressed by arranging a plurality of claw portions at equal intervals along the circumferential direction. In addition, since the force (shearing force) applied to the claw portion can be dispersed when the user tries to separate the module 200 from the device main body 100, it is possible to avoid excessive force from acting on the claw portion.

  In the present embodiment, the second claw portion 201a2 and the fourth claw portion 201a4 (FIG. 2) have different maximum thicknesses in the direction orthogonal to the optical axis of the imaging optical system, and the fourth claw portion 201a4 The maximum thickness is larger than that of the second claw portion 201a2. By increasing the thickness of one of the two claw portions opposed in the radial direction, it becomes easy to remove the backlash. Further, since the gap between the device main body 100 and the module 200 can be made as small as possible at the formation position of the lock operation portion 141a that can be an intrusion path for water or the like, it is effective for measures against drip-proof and dust-proof.

  FIG. 10 is a schematic diagram illustrating an example in which the extension module 300 is connected and used as a power supply module mounted on the device main body 100. The extension module 300 includes a first interface unit 301, a cable 302, and a second interface unit 303. For example, the distance between the device and the power supply can be increased by extending the device main body 100 and the power supply module 500 having a power supply capacity larger than that of the module 200 by using the extension module 300. Since such a usage pattern is possible, convenience for the user is improved. Specific examples are shown in FIGS.

  A contact surface (FIG. 12) with the second interface portion 303 in the power supply module 500 is provided with a connector portion 510 (having a wall portion 510a) and a plurality of concave portions 501. In the connection state between the power supply module 500 and the second interface unit 303, a plurality of projections 303 a (FIG. 11) are extended from the second interface unit 303 at positions corresponding to the plurality of recesses 501. With this configuration, for example, it is possible to prevent the modules of the same type from being connected to each other and to prevent modules that are not permitted to connect from each other from being connected.

  FIG. 13 and FIG. 14 are diagrams illustrating a relay module 700 interposed between the device main body 100 and the power supply module 200. A plurality of convex portions 701 (FIG. 13) are formed on the back surface of the relay module 700. In the power supply module 200, when the relay module 700 and the power supply module 200 are connected, concave portions 240 and 250 (FIG. 14) are formed at positions corresponding to the plurality of convex portions 701, respectively. With this configuration, it is possible to prevent modules that are not permitted to be connected from each other. 10 to 14, the configuration in which the heat radiating member such as the heat radiating member 107 of the device main body 100 described above is not provided in the interface portion of each module has been described, but a configuration in which a heat radiating member is provided may be used. . For example, like the heat radiating member 107 of the apparatus main body 100, a configuration in which a contact surface of the relay module 700 with the module 200 includes a heat radiating member protruding corresponding to the concave portion 206 of the module 200 may be employed.

  Next, with reference to FIG. 15 to FIG. 21, electrical connection between the device main body and the module will be described. As a module, a power supply module including a battery and a relay module that connects the power supply module to a device main body that is a camera module will be described.

FIG. 15A is a schematic diagram showing the apparatus main body 100 and the module 200 from the front side. The apparatus main body 100 and the module 200 can be electrically connected by a connection terminal portion provided in each. The connector part 120 arrange | positioned at the back part of the apparatus main body 100 has a connection terminal part made into the concave shape. The following connection portion is provided on the left side surface portion of the device main body 100.
External microphone connection 100A1
-USB (Universal Serial Bus) communication connection 100A2
HDMI (registered trademark) (High-Definition Multimedia Interface) communication connection unit 100A3.

  The connector part 210 disposed on the front surface of the module 200 has a convex connection terminal part corresponding to the connector part 120, and fits with the connection terminal part of the connector part 120 in a state of being mounted on the device main body 100. . The connector section 210 has an H-shaped cross section, and a wall section 210a is formed in a direction substantially orthogonal to the long side direction. Hereinafter, between the two walls 210a, one of the two surfaces (connection surfaces) of the connection terminal portion is referred to as a first surface 210S1, and the opposite connection surface is referred to as a second surface 210S2. In the present embodiment, the upper surface of the connection terminal portion is the first surface 210S1, and the lower surface of the connection terminal portion is the second surface 210S2. The wall portion 210a is formed so as to protrude from both the first surface 210S1 and the second surface 210S2. The connection terminal portion of the connector portion 120 of the device main body 100 has a shape corresponding to the connection terminal portion of the connector portion 210.

  With reference to FIG. 16, the arrangement of each terminal (each pin) of the terminal group in the connection terminal portion of the module 200 will be described. Each terminal (pin) in the connector part 210 of the module 200 is made of a metal plate, and has elasticity so that it can come into contact with each metal plate as each terminal (pin) in the connector part 120. About elasticity, you may have in a mutual metal plate, and may have in one side of the metal plates which contact. Similarly to the connector part 210 of the module 200, each pin of the connector part 510 (FIG. 12) is formed of a metal plate. FIG. 16 is a table showing pin numbers and corresponding pin names. Pin numbers B17 to B20 correspond to a VBAT terminal group which is a power supply terminal group. Pin numbers A17 to A20 correspond to a GND terminal group (ground terminal group). The number of terminals in the VBAT terminal group is the same as the number of terminals in the GND terminal group. Pin numbers A7 to A9 correspond to a communication terminal group with the device main body 100. The GND terminal group is disposed at a position closer to the VBAT terminal group than the communication terminal group. Pin numbers A1 to A6, A10 to A16, and B1 to B16 all correspond to NC (Non Connection) terminals having no electrical connection.

  The VBAT terminal group is disposed on the first surface 210S1, and the GND terminal group is disposed on the second surface 210S2 (FIG. 15B). This is to prevent a short circuit between the VBAT terminal group and the GND terminal group. The VBAT terminal group and the GND terminal group are located on the opposite sides, and when viewed from the direction orthogonal to the insertion direction of the connector part 210, the VBAT terminal group and the GND terminal group overlap each other. Therefore, the front and back surfaces of the flexible wiring member connected to the connection terminal group can be easily run side by side, and the handling performance is improved. For the purpose of preventing a short circuit, terminals (B15, B16 and A15, A16) adjacent to the VBAT terminal group and the GND terminal group, respectively, are NC terminals.

  The VBAT terminal group and the GND terminal group are located in the vicinity of the wall part 210 a of the connector part 210. Since the wall portion 210a is formed in a direction substantially orthogonal to the first surface 210S1 and the second surface 210S2, it is effective as a preventive measure against inadvertent contact with foreign matter. For example, as shown in FIG. 15B, it is assumed that a foreign object 2400 comes into contact with the end portion of the connector portion 210 from the first surface 210S1 side of the connector portion 210. In this case, since the VBAT terminal group is located closer to the end on the first surface 210S1, the possibility that the foreign matter 2400 contacts the VBAT terminal group is low. The same applies to the GND terminal group, and there is an effect of preventing a short circuit. The communication terminal group is at a position sufficiently away from the GND terminal group by sandwiching the NC terminal on the second surface 210S2.

  With reference to FIG. 17, the arrangement of the terminal group in the connection terminal portion of the device main body 100 will be described. FIG. 17 is a table showing pin numbers and corresponding pin names. The GND terminal group and the communication terminal group with the module are arranged on the second surface 120S2 among the connection surfaces of the connector unit 120. Pin numbers A1 to A3, pin numbers B1 to B12, A11, and A12 are terminal groups corresponding to external communication interfaces (hereinafter abbreviated as “IF”), respectively. The first IF terminal group (pin numbers A1 to A3) for USB is arranged on the second surface 120S2. The first IF terminal group includes a DP terminal corresponding to the pin number A1, a DM terminal corresponding to the pin number A2, and a USB_GND terminal corresponding to the pin number A3. The DP terminal and the DM terminal are a pair of terminals used for transmitting differential signals. The DP terminal is a plus side terminal and the DM terminal is a minus side terminal. The USB_GND terminal is a ground terminal serving as a reference for the differential signal, and is disposed on the opposite side of the DP terminal from the paired DP terminal and DM terminal. The USB_GND terminal is adjacent to a communication terminal group with the module.

  The second IF terminal group for HDMI (registered trademark) has more terminals than the first IF terminal group. Of the second IF terminal group, the terminal group corresponding to the pin numbers B1 to B12 is arranged on the first surface 120S1. The second IF terminal group is a terminal group (B1 and B3, B4 and B6, B7 and B9, B10 and B12) used for differential signal transmission with a plurality of pins as a set, and serves as a reference for the differential signal. It has ground terminals (B2, B5, B8, B11). TMDS is an abbreviation for “Transition Minimized Differential Signaling”. Terminal groups corresponding to the pin numbers A11 and A12 are arranged on the second surface 120S2. Both the DDC_SCL terminal corresponding to the pin number A11 and the DDC_SDA terminal corresponding to the pin number A12 are terminals connected to a signal line used for transmission of a periodic signal (periodic signal).

  Pin numbers B17 to B20 correspond to the VBAT terminal group. The VBAT terminal group is arranged on the first surface 120S1 among the connection surfaces of the connector unit 120. Pin numbers A17 to A20 correspond to GND terminal groups corresponding to VBAT terminal groups B17 to B20. The GND terminal group is arranged on the second surface 120S2 among the connection surfaces in the connector unit 120. The terminals corresponding to the pin numbers B13, B15, B16 and A15, A16 are NC terminals.

  Pin numbers A4 to A10, A13, A14, and B14 correspond to the communication terminal group with the module different from the first IF terminal group for USB and the second IF terminal group for HDMI (registered trademark). To do. Among these, the / M_CONNECT terminal corresponding to the pin number B14 on the first surface 120S1 is grounded inside the device main body. By disposing the / M_CONNECT terminal on the first surface 120S1, it can be separated from the GND terminal group disposed on the second surface 120S2, which is an effective measure for preventing erroneous detection.

  In the second surface 120S2, the M_CLK terminal corresponding to the pin number A5 in the communication terminal group with the module is a clock terminal. The M_CLK terminal is adjacent to the first IF terminal group via a terminal that is not used for communication with periodicity. M_GND corresponding to the pin number A4 is a ground terminal. The M_GND terminal is adjacent to the USB_GND terminal of the first IF terminal group. M_IRQ corresponding to the pin number A6 is a terminal connected to the interrupt signal line, and a terminal corresponding to the pin number A7 is an M_ID terminal.

  On the second surface 120S2, / M_POWER_DET corresponding to the pin number A10 is a detection terminal for power supply detection. Disposing the / M_POWER_DET terminal away from the GND terminal group is effective in suppressing erroneous detection. M_RESET corresponding to the pin number A13 is a reset terminal. The M_VD terminal corresponding to the pin number A14 is a terminal connected to a signal line used for transmitting a signal having periodicity. Both the M_I2C_SCL terminal corresponding to the pin number A8 and the M_I2C_SDA terminal corresponding to the pin number A9 are terminals connected to a signal line used for transmitting a signal having periodicity. A terminal group corresponding to the pin numbers A11 and A12 is arranged between the / M_POWER_DET terminal and the GND terminal group (A17 to A20). That is, the terminal group corresponding to the pin numbers A11 and A12 is arranged between the / M_POWER_DET terminal and the M_RESET terminal. In the present embodiment, the / M_POWER_DET terminal is disposed between the M_I2C_SDA terminal and the DDC_SCL terminal. Further, an M_RESET terminal is disposed between the DDC_SDA terminal and the M_VD terminal. The M_I2C_SCL terminal, the M_I2C_SDA terminal, the DDC_SCL terminal, the DDC_SDA terminal, and the M_VD terminal are terminals connected to signal lines having different functions and transmitting periodic signals. By arranging these terminals so as not to be adjacent to each other, an effect of reducing noise between signal lines can be obtained.

  Next, the reason why the VBAT terminal group and the GND terminal group are arranged closer to the end than the center of the connection terminal portion (the end portion closer to the imaging unit 101) will be described with reference to FIG. Of the side surfaces of the apparatus main body 100, the side surface separated from the imaging unit 101 is defined as a first side surface, and the side surface close to the imaging unit 101 is defined as a second side surface. USB connectors, HDMI (registered trademark) connectors, and the like are concentrated on the first side surface. For this reason, in the connector parts 120 and 210, it is rational in terms of layout that the terminal group corresponding to the external communication interface is arranged at a position close to the first side face part in the connection terminal part. Therefore, the VBAT terminal group and the GND terminal group are arranged at a position close to the second side surface portion in the connection terminal portion. This contributes to improving the layout of the terminal group corresponding to the external communication interface and improving the layout of the substrate, the flexible wiring member, and each terminal group.

  Next, with reference to FIG. 18, the arrangement of the terminal group in the connection terminal portion on the device main body 100 side of the relay module will be described. Note that the arrangement of the terminal groups in the connection terminal portion on the power supply module 200 side of the relay module corresponds to the arrangement of the terminal groups in the connection terminal portion of the power supply module 200 described in FIG. FIG. 18 is a table showing pin numbers and corresponding pin names. Pin numbers B17 to B20 correspond to the VBAT terminal group. Pin numbers A17 to A20 correspond to the GND terminal group. Pin numbers A7 to A9 correspond to a group of communication terminals with the device main body 100. The terminals corresponding to the pin numbers B1 to B13 and B15, B16, A1 to A6, and A10 to A16 are NC terminals.

  Pin number B14 is a pin name / M_CONNECT terminal, which is disposed on the first surface of the connection terminal portion, that is, the surface on which the VBAT terminal group is disposed, and is disposed on the side opposite to the GND terminal group. The pin number B14 is arranged on the first surface with the NC terminal group (B15, B16) sandwiched between the VBAT terminal group.

  The function of each module will be described with reference to FIGS. FIG. 19 is a circuit block diagram showing a state in which the power supply module 200 is connected to the device main body 100. The device main body 100 includes a camera module circuit 100C that performs imaging control and the like. The power supply unit 200B of the power supply module 200 includes a battery. The camera module circuit 100C is connected to the power supply unit 200B of the module 200 through a power supply line, a GND line, and a communication line. The power supply line corresponds to the VBAT terminal group (B17 to B20), and the GND line corresponds to the GND terminal group (A17 to A20). The communication line corresponds to the communication terminal group (A7, A8, and A9).

  FIG. 20 is a circuit block diagram illustrating a connection relationship among the device main body 100, the relay module 1300, and the power supply module 200. FIG. 20A is a circuit block diagram illustrating a state where the device main body 100, the relay module 1300, and the power supply module 200 are connected. FIG. 20B is a circuit block diagram showing a state where the relay module 1300 and the power supply module 200 are connected.

  In FIG. 20A, the relay module 1300 is interposed between the device main body 100 and the power supply module 200, and relays power supply from the module 200 to the device main body 100. The power supply circuit 1300C in the relay module 1300 includes a CPU (Central Processing Unit) 1301 that is a control unit, and a booster circuit 1302. The CPU 1301 controls boosting of the power supply voltage from the module 200 by controlling the boosting circuit 1302. The booster circuit 1302 is supplied with the power supply voltage from the power supply unit 200B, and supplies power to the camera module circuit 100C through the power supply line. The GND line is grounded in the apparatus main body 100 via the relay module 1300. When the device main body 100 and the relay module 1300 are connected, the / M_CONNECT terminal (pin number B14) on the device main body 100 side of the relay module 1300 becomes a low level. This is because the / M_CONNECT terminal (pin number B14) on the device main body 100 side is grounded (at the same voltage level as the GND terminals A17 to A20) as described above. As described above, the CPU 1301 of the power supply circuit 1300C detects that the / M_CONNECT terminal (pin number B14) of the relay module 1300 is at the low level, and activates the booster circuit 1302. That is, in the relay module 1300, when the connection with the device main body 100 is detected and the CPU 1301 receives an enable signal via the communication terminal B14, the booster circuit 1302 operates to supply power from the power supply unit 200B to the camera module circuit 100C. Supply is made.

  On the other hand, as shown in FIG. 20B, when the relay module 1300 is not connected to the device main body 100, the booster circuit 1302 of the power supply circuit 1300C does not operate. In this case, because the / M_CONNECT terminal (pin number B14) on the device main body 100 side of the relay module 1300 is in an open state, the CPU 1301 of the power supply circuit 1300C does not detect the enable signal. If the / M_CONNECT terminal (pin number B14) is short-circuited with the GND terminal due to contact with a foreign object or the like, a malfunction of the power supply circuit 1300C may occur. Therefore, on the device main body 100 side of the relay module 1300, the / M_CONNECT terminal (pin number B14) is arranged on the first surface away from the GND terminal group (A17 to A20) at the connector portion. NC terminals (B15, B16) are provided between the / M_CONNECT terminal and the VBAT terminal group (B17 to B20) (FIG. 18). Thereby, malfunction of the power supply circuit 1300C can be prevented. Here, the / M_CONNECT terminal is described as being grounded on the device main body 100 side, but the device main body 100 may be configured to control the voltage level of the terminal.

  FIG. 21 is a circuit block diagram for explaining the identification function of the module 1400 connected to the device main body 100. FIG. 21A shows a state where the device main body 100 and the module 1400 are connected. The pin number A7 of the connector part 120 of the device main body 100 is connected to a predetermined power supply (Vcc) terminal via a resistor R1. The connector portion 1410 of the module 1400 is provided with an identification terminal TA7 corresponding to the pin number A7 of the connector portion 120 of the device main body 100 (for example, the M_ID terminal of the pin number A7 in FIGS. 16 and 18). The identification terminal TA7 is connected to the GND line (for example, A17 to A20 in FIGS. 16 and 18) via the resistor R2, so that the voltage level (ground potential) is the same as that of the GND line. . For this reason, when the apparatus main body 100 and the module 1400 are connected, the voltage divided by the resistors R1 and R2 is input to the camera module circuit 100C as an identification signal. The identification circuit inside the camera module circuit 100C identifies the type of the connected module based on the input identification signal. That is, the resistance value of the resistor R2 is set to be different for each module type, and the identification circuit detects that the identification signal changes (the voltage value changes) according to the resistance ratio between the resistors R1 and R2. . By determining the type of module connected to the device main body 100, optimal control and display switching can be performed for each module. For example, if the value of the resistance R2 is changed between the power supply module 200 and the relay module 1300, it can be determined whether the power supply module 200 is connected to the device main body 100 or whether the relay module 1300 is connected. it can.

  In the above description, the resistor R2 has been described. However, as described above, it is only necessary to be able to discriminate the identification signal (detect the voltage value), so it is possible to change the member indicating a specific voltage value, for example, the resistor R2 in the power circuit It is. This will be described with reference to FIG. FIG. 21B shows a state in which the device main body 100 and the module 1400 are connected by the connector portions 120 and 1410, and the module 1400 includes an identification signal circuit 1400C. In a state where the module 1400 is mounted on the apparatus main body 100, the identification signal circuit 1400C outputs an identification signal assigned to each module type to the camera module circuit 100C via the identification terminal TA7. An identification circuit inside the camera module circuit 100C identifies the module based on the input identification signal.

  In this embodiment, the module identification terminal TA7 corresponding to the pin number A7 is arranged on the second surface opposite to the VBAT terminal group (FIG. 16), which is effective as a short-circuit prevention measure.

  As described above, according to the present embodiment, a plurality of pins can be arranged with a low dimension. Arranging the VBAT terminal group and the GND terminal group on the front and back in the connection terminal portion and making them back-to-back is effective in preventing short circuits. The handling property of the flexible wiring member connected to the terminal group is improved. As the connector shape, the module side is a male shape and the device main body side is a female shape, thereby making it easy to align the two.

Since the wall portion (FIG. 15: 210a, FIG. 12: 510a) which is a protruding portion is formed in the connection terminal portion on the module side, the probability that the VBAT terminal group and the GND terminal group come into contact with a foreign object is reduced, and a short circuit occurs. It is effective as a preventive measure. When power is supplied from the power supply module 200 to the device main body 100 via the relay module 1300 (FIG. 20), the voltage drop can be reduced by the booster circuit 1302 of the relay module 1300 boosting the power supply voltage. That is, a power supply voltage within a predetermined range boosted by the booster circuit 1302 of the relay module 1300 can be supplied to the device main body 100.
In addition, about the structure of this invention, it is not limited to what was illustrated to the said embodiment, A material, a shape, a dimension, a form, a number, an arrangement | positioning location, etc. can be suitably changed in the range which does not deviate from the summary of this invention. .

100 Device body (imaging device)
120 connector part 200 module 210 connector part 1300, 1400 module

Claims (7)

An electronic device that can be connected to a module,
It has a connection terminal part electrically connected with the terminal part which the module has, and the connection terminal part has a power supply terminal group on the first surface among the connection surfaces, and is on the opposite side to the first surface. A ground terminal group on the second surface, a communication terminal group used for communication with the module, and a first terminal group corresponding to an external communication interface different from the communication terminal group,
The first terminal group includes a pair of terminal groups used for differential signal transmission and a ground terminal serving as a reference for the differential signal, and is opposite to the positive terminal in the pair of terminal groups. The electronic terminal, wherein the communication terminal group is adjacent to the ground terminal arranged on the side. The connection terminal portion includes a second terminal group corresponding to an external communication interface different from the communication terminal group on the first surface,
2. The electronic device according to claim 1, wherein the second terminal group includes a terminal group used for transmitting a differential signal with a plurality of pins as a set and a ground terminal serving as a reference for the differential signal. . The electronic device according to claim 2, wherein the number of terminals of the second terminal group is larger than the number of terminals of the first terminal group. The said communication terminal group has a clock terminal, The said clock terminal is adjacent to the said 1st terminal group through the terminal which is not used for communication with periodicity. The Claim 1 thru | or 3 characterized by the above-mentioned. The electronic device according to any one of the above. The electronic device according to claim 1, wherein the communication terminal group includes a ground terminal, and the ground terminal is adjacent to the ground terminal of the first terminal group. It is a camera module provided with an imaging part. The electronic device of any one of Claims 1 thru | or 5 characterized by the above-mentioned. An electronic device connectable with the electronic device according to claim 6,
Having a second connection terminal portion electrically connected to the concave first connection terminal portion provided in the camera module;
The second connection terminal portion has a convex shape that fits with the first connection terminal portion, and includes a power supply terminal group on the first surface among the connection surfaces with the first connection terminal portion. An electronic apparatus comprising a ground terminal group and a communication terminal group used for communication with the camera module on a second surface opposite to the first surface.

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