JP2016017972A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the continuation of a battery ejection spring and impose a vibration restriction on a battery ejection spring tip end if static electricity enters an electronic device.SOLUTION: An electronic device comprises: a battery accommodation chamber (20) including an opening portion (301) into and from which a battery (16) is inserted and unloaded; an electrical connection portion (25) electrically connected to the battery (16); battery ejection means (33) energizing the battery (16) so that the battery (16) separates from the electrical connection portion (25) and part of the battery (16) protrudes from the opening portion (301); and a conductive fixing member (31) fixing the electrical connection portion (25) to the battery accommodation chamber (20), the fixing member (31) having an energization shape (310) for energizing the battery ejection means (33) so that a distance between the battery ejection means (33) and the electrical connection portion (25) remains the same between before and after accommodating the battery (16) or the distance after accommodating the battery (16) is larger than the distance before accommodating the battery (16).SELECTED DRAWING: Figure 8

Description

  The present invention relates to an electronic device, and more particularly to a battery discharging means for inserting and removing a battery and a structure thereof.

  In an electronic device such as a digital camera, a battery is generally detachably loaded in a battery housing chamber in order to supply electric power. However, when a battery is inserted into or removed from an electronic device body, static electricity charged to the user may flow into the circuit board inside the device via internal parts or screws that fix the power connector. This will have a negative effect on the mounted electronic components.

  For this reason, the electronic device needs to have a structure that reliably flows static electricity to the ground portion even when static electricity enters the inside of the device.

  In Patent Document 1, a cut-out portion and a positioning hole are provided in a printed wiring board having a pattern portion to be ground potential, and a conductive spring having at least one end wound portion is attached to the printed wiring board. . A spring winding portion sandwiches the exposed portion of the pattern portion and includes a conductive member (exterior member) that presses against the other end of the spring to provide a camera that lowers the potential of the conductive member to the ground potential. Yes.

JP 2003-315888 A

  However, in Patent Document 1, a spring for preventing static electricity is required, and the number of parts increases. In addition, since a spring must be attached to the printed wiring board, problems such as whether other elements or the like existing on the board are not damaged must be taken into consideration in the assembly process. An object of the present invention is to adopt a configuration in which static electricity flowing from the outside is caused to flow to the ground portion in the battery discharge spring for inserting and removing the battery from the battery housing chamber without increasing the number of parts.

  In general, battery discharge springs in electronic devices such as digital cameras are often compression springs or torsion springs. However, compression springs require more space for placement than torsion springs, making them suitable for miniaturization. No. Therefore, if a torsion spring is used in a small digital camera such as the present invention, the spring tip tends to swing in multiple directions due to the structure of the spring, and there is a possibility of interference with other parts when the battery is inserted or removed. Directional regulation is required.

  Therefore, an object of the present invention is to ensure the conduction of the battery discharge spring when static electricity enters the inside of the electronic device, and to provide a swing restriction at the tip of the battery discharge spring.

  The configuration of the present invention includes a battery housing chamber having an opening for inserting and removing a battery, an electrical connection part for performing electrical connection with the battery, and the battery being separated from the electrical connection part, In an electronic apparatus comprising: battery discharging means for biasing a part of the battery so as to protrude from the opening; and a fixing member having conductivity for fixing the electrical connection part to the battery housing chamber. The fixing member urges the battery discharge means so that the distance between the battery discharge means and the electrical connection portion is the same before and after battery storage, or the distance after battery storage is longer. It has an urging shape.

  According to the present invention, it is possible to ensure the conduction of the battery discharge spring when static electricity enters the inside of the electronic device, and to provide a swing restriction at the tip of the battery discharge spring.

1 is an external perspective view of a camera according to an embodiment of the present invention. FIG. 4 is a partial exploded perspective view of the camera according to the embodiment of the present invention with the front cover unit 18 removed. 2 is a unit diagram of a battery housing unit 100. FIG. (A) Front view, (b) Bottom view. FIG. 4 is a cross-sectional view of the battery housing unit 100 in FIG. 3. (A) AA sectional drawing, (b) BB sectional drawing. It is the disassembled perspective view which looked at the battery accommodating unit 100 from the front side. It is the disassembled perspective view which looked at the battery accommodating unit 100 from the back side. (A) is a front view of the battery discharge spring 33, and (b) is a side view of the battery discharge spring 33. FIG. 6 is an enlarged view and a cross-sectional view around the battery discharge spring 33. (A) is an enlarged view before the battery 16 is inserted into the battery housing chamber 20, (b) is a cross-sectional view in FIG. 7 (a), and (c) is when the rotation restricting portion 33c starts to contact the battery 16. FIG. 7D is an enlarged view of FIG. 7C, FIG. 7E is an enlarged view of a state where the battery 16 is held by the battery lock mechanism 34, and FIG. 7F is a sectional view of FIG. FIG. 9A is a front view of the strobe sheet metal 31, and FIG. 9B is an enlarged side view of a portion A in FIG. 6 is a simplified diagram showing the relationship between the presence or absence of constriction of the battery discharge spring 33 and the contact portion 310. FIG. (A) Before contact when there is no constriction, (b) When contact when there is no constriction, (c) Before contact when there is a constriction, (d) There is a constriction In case of contact.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an external perspective view of a digital camera (hereinafter abbreviated as a camera) that is an imaging apparatus according to an embodiment of the present invention. 1A is an external perspective view of the front side (subject side) of the camera, and FIG. 1B is an external perspective view of the back side (photographer side). FIGS. 1A and 1B show a state in which the lens unit 3 is extended with the power turned on. When the power is turned off, the lens unit 3 is retracted to a position where it does not protrude from the camera body (apparatus body) 1. The

  The display unit (movable part) 2 is supported by a hinge mechanism so as to be rotatable within a predetermined angle range with respect to the camera body 1, and is electrically connected to the camera body 1 by a flexible wiring board (not shown). FIGS. 1A and 1B show a state in which the display unit 2 is closed with respect to the camera body 1.

  For example, a liquid crystal panel unit or the like is used as the display unit 2a, and displays an image for confirming a composition at the time of shooting and a reproduced image. The display unit 2a incorporates a capacitive touch panel. Touching the screen with your finger allows you to make settings for shooting, playback of recorded images, image enlargement / reduction, image forwarding / editing, communication settings, etc. Various operations are possible. The display unit 2a can also display shooting conditions such as shutter speed and aperture value, the number of shots, a menu, and the like.

  The lens unit 3 includes an imaging optical system, a lens barrier, a photoelectric conversion element, a lens driving mechanism, a shutter, and the like. The lens unit 3 is configured so that a subject image is formed on an image sensor by a photographing optical system. The power button 4 is an operation member that turns on or off the power of the camera.

  The mode switching lever 5 is an operation member that switches a shooting mode (for example, a still image mode, a moving image mode, a continuous shooting single shooting mode, and a scene mode) at the time of shooting. The communication button 6 is an operation member that starts wireless communication such as Wi-Fi. The playback button 7 is an operation member that, when pressed, makes a transition from the shooting mode to the playback mode and displays a still image or a moving image recorded on the display unit 2a. If the playback button 7 is pressed from the power-off state, the camera can be activated in the playback mode. The terminal cover 8 is supported so as to be slidable and rotatable with respect to the camera body 1. When the terminal cover 8 is opened, external connection terminals such as a USB terminal and an HDMI (registered trademark) terminal are exposed.

  The strap base 9 is a strap base for passing a strap string (not shown), and two strap bases 9 are formed on the left side surface and the right side surface of the camera. The battery cover 10 is held so as to be slidable and rotatable with respect to the camera body 1. When the battery lid 10 is opened, there is a battery housing chamber 20 from which the battery 16 can be inserted and removed. The card lid 11 is supported so as to be slidable and rotatable with respect to the camera body 1. When the card cover 11 is opened, the recording medium can be inserted and removed.

  The illumination window 12 is made of a transparent member, and guides and diffuses light from a light emitting element disposed inside the camera. This illumination is emitted during low-illuminance shooting (during still image shooting or moving image shooting) or during AF (autofocus) operation during low-illuminance.

  The zoom ring 13 has a ring shape and is arranged around the lens unit 3. The zoom ring 13 rotates with respect to the camera body 1 in a predetermined angle range in the P direction and Q direction (shown in FIG. 1A) about the optical axis of the lens unit 3.

  When the zoom ring 13 is rotated in the P direction, the lens unit 3 is configured to zoom toward the TELE side and when rotated in the Q direction, the lens unit 3 zooms toward the WIDE side. When the photographer rotates the zoom ring 13 and then removes his / her finger from the zoom ring 13, the zoom ring 13 returns to the neutral position by a spring (not shown).

  Concave and convex portions are formed on the entire circumference of the outer diameter of the zoom ring 13 so that the finger grip is improved.

  Usually, the release button of a camera is composed of a two-stage switch. AF and AE are performed when the first-stage switch (SW1) is turned on by half-pressing the release button, and still image shooting is performed when the second-stage switch (SW2) is turned on by fully pressing the release button. . Similarly, the release ring 14 is constituted by a two-stage switch. The release ring 14 is restricted in movement and is configured to move only within a predetermined range.

  The release ring 14 of the present invention has a ring shape and is disposed around the lens unit 3. The outer diameter of the release ring 14 is formed smaller than the outer diameter of the zoom ring 13, and the release ring 14 is disposed so as to protrude forward of the camera relative to the zoom ring 13. The release ring 14 is configured to slide within a predetermined range with respect to the camera body 1 in the T direction, the B direction, the R direction, and the L direction (shown in FIG. 1A) orthogonal to the optical axis of the lens unit 3. Has been.

  By pressing the release ring 14 in the vertical direction, that is, by operating in the B direction (shown in FIG. 1A) and the T direction (shown in FIG. 1A), the release operation of the camera is performed and still image shooting is performed. Can do. Similarly, the release operation of the camera can also be performed by operating the release ring 14 in the left-right direction, that is, by operating in the U direction (shown in FIG. 1A) and the R direction (shown in FIG. 1A). Can take still pictures.

  The release ring 14 is configured to return to a neutral position by a spring (not shown) when the vertical or horizontal push operation is finished and the finger is released.

  1A and 1B show a state in which the zoom ring 13 and the release ring 14 are located at the neutral position.

  Next, the configuration of the battery housing unit 100 will be described in detail with reference to FIGS. FIG. 2 is a partially exploded perspective view of the camera according to the embodiment of the present invention with the front cover unit 18 removed. 3A is a front view of the battery housing unit 100, and FIG. 3B is a bottom view thereof. 4 is a cross-sectional view of the battery housing unit 100 in FIG. 3, in which FIG. 4 (a) is a cross-sectional view taken along line AA, and FIG. 4 (b) is a cross-sectional view taken along line BB. FIG. 5 is an exploded perspective view of the battery housing unit 100 as seen from the front side. FIG. 6 is an exploded perspective view of the battery housing unit 100 as viewed from the back side. 7A is a front view and FIG. 7B is a side view of the battery discharge spring 33. FIG. 8A is an enlarged cross-sectional view around the battery discharge spring 33.

  As shown in FIG. 2, a battery 16 for supplying power to the camera is arranged on the right side of the lens unit 3 in the camera body 1, and a main circuit board 17 on which a main CPU and the like are mounted on the left side. The main circuit board 17, the display unit 2, the lens unit 3, and the front cover unit 18 are electrically connected by a flexible wiring board (not shown). A connector 17 a for connecting a battery flexible wiring board 19 attached to the battery housing unit 100 is mounted on the main circuit board 17.

  The configuration of the battery housing unit 100 will be described below with reference to FIGS. The battery housing unit 100 is configured by assembling a battery housing chamber 20 with strobe parts such as a battery flexible wiring board 19 and a strobe window 28, battery insertion / removal parts, and the like. As shown in FIG. 4A, the battery flexible wiring board 19 is folded to have a three-stage structure. As shown in FIGS. 5 and 6, an LED strobe 22 disposed on the front surface of the battery housing unit 100 and a switch 23 for the power button 4 and the playback button 7 disposed on the side surface are mounted on the main middle stage flexible cable 19a. Has been. The battery flexible wiring board 19 on which the two switches 23 are mounted is bonded to the battery housing chamber 20 with a double-sided tape 23a. Further, a connector 19d for connecting a liquid crystal flexible wiring board (not shown) is also mounted.

  A connector 19e for connection to the main circuit board 17, an electric double layer capacitor 24 for the LED strobe 22, and a battery contact connector 25 are mounted on the lower flexible board 19b. The electric double layer capacitor 24 has a rectangular parallelepiped shape and is soldered at one end on the short side. Therefore, in order to prevent the solder from being detached due to an impact such as dropping, a cushion member 24a is adhered and charged in the battery housing chamber 20 to support the double layer capacitor 24.

  Two microphones (not shown) are mounted on the back surface side of the upper-stage flexible cable 19c. In order to prevent an element such as a mounted microphone from coming into contact with the battery flexible wiring board 19, and as a countermeasure against static electricity, a microphone sheet metal 26 is disposed between the upper flexible board 19c and the middle flexible board 19a. The clearance is ensured by sandwiching the cushion material 27 between the battery flexible wiring board 19 and the microphone sheet metal 26.

  Next, the configuration around the LED strobe 22 will be described. The light emitted from the LED strobe 22 mounted on the battery flexible wiring board 19 is collected by the reflector 29 and diffused to the outside through the strobe window 28. The strobe window 28 and the reflector 29 are bonded and fixed to the strobe case 30. At this time, the two bosses 30a and 30b provided in the strobe case 30 are positioned and steady, so that the holes 28a and 28b provided in the strobe window 28 and the holes 29a and 29b provided in the reflector 29 are provided. Respectively.

  On the front side of the strobe sheet metal 31, a middle stage flex 19 a on which the LED strobe 22 is mounted is bonded with a double-sided tape 32. The two bosses 20a and 20b provided in the battery storage chamber 20 are positioned and fixed to the holes 30c and 30d provided in the strobe case 30 and the holes 31a and 31b provided in the strobe sheet metal 31, respectively. It is engaged and fixed to the battery storage chamber 20 with a screw.

At this time, as shown in FIG. 4 (b), on the back side of the strobe sheet metal 31, a lower flexible board 19 b on which the battery contact connector 25 is mounted is disposed. The battery contact connector 25 is provided in the battery storage chamber 20. The position is determined by fitting into the groove 20z. The lower flexible board 19b on which the battery contact connector 25 is mounted is sandwiched between the strobe sheet metal 31 and the battery storage chamber 20, and is screwed and fixed to fix the position of the battery contact connector 25 in the optical axis direction. (See Fig. 4 (a))
Also here, the boss 20c formed in the battery housing chamber 20 is engaged with the hole 31c of the strobe sheet metal 31, and the positions of the battery housing chamber 20 and the strobe sheet metal 31 are also determined firmly. A plurality of contact pieces 25a are supported in the housing of the battery contact connector 25 (see FIG. 4B), and the plurality of contact pieces are pressed against the battery 16 stored in the battery storage chamber 20. Thus, the contact part of the battery 16 and the electrode part of the battery flexible wiring board 19 are electrically connected via the battery contact connector 25.

  Next, the battery housing chamber 20 holds a battery discharge spring 33 for inserting and removing the battery 16. The battery discharge spring 33 is a torsion spring as shown in FIG. Centering on the coil portion 33a, one end extends straight (33b), and the other end includes a contact portion 33c, a constricted portion 33d, and an insertion / removal portion 33e. As shown in FIG. 4A, when the battery discharge spring 33 is assembled to the battery storage chamber 20, the straight portion of 33 b contacts the contact wall 20 e provided in the battery storage chamber 20, and further the battery discharge spring 33. Is partly regulated by the standing wall 20f so that it does not slide off from the battery housing chamber 20.

  The other end 33c is in contact with the rotation restricting wall 20d of the battery housing chamber 20, thereby restricting the rotation of the battery discharge spring 33. (See FIG. 8 (a)) The tip of the insertion / extraction portion 33e has a U-shape in order to ensure a wide contact surface with the battery 16.

  When the battery discharge spring 33 is assembled to the battery housing chamber 20, the coil portion 33a is engaged with the holding boss 20g while the contact portion 33c is hooked on the rotation restricting wall 20d, and finally the straight portion 33b is attached to the contact wall 20e. Make contact. The holding boss 20g has a hook shape 20h on the lower surface side, and has a role of preventing the coil portion 33a from being detached from the holding boss 20g. (Refer FIG.4 (b)) By setting it as such a structure, the part which presses down the battery discharge | release spring 33 becomes unnecessary, and it can assemble easily from the front side of a unit.

  Further, the battery discharge spring 33 biases the battery 16 in the direction in which the battery 16 protrudes from the battery housing chamber 20, and the battery contact piece 25 a also loads the battery 16 in the battery housing chamber 20 in the same manner as the biasing direction of the battery discharge spring 33. It is energized in the direction of projecting from. The battery lock mechanism 34 includes a lock member 35 that supports the lower surface of the battery 16, a shaft 36, and a torsion spring 37. The battery lock mechanism 34 is assembled in the battery housing chamber 20 to prevent the battery 16 from being detached from the camera body 1 and the data being recorded being damaged when the battery cover 10 is inadvertently opened. Is provided. The battery lock mechanism 34 always holds the battery 16 when the battery 16 is stored in the battery storage chamber 20.

  Next, the relationship between the strobe sheet metal 31 and the battery discharge spring 33 at the time of battery insertion / extraction will be described with reference to FIGS. FIGS. 8A to 8F are an enlarged view and a cross-sectional view around the battery discharge spring 33. FIGS. 8A and 8B are an enlarged view and a cross-sectional view before the battery 16 is inserted into the battery housing chamber 20. At this time, the rotation restricting portion 33c of the battery discharge spring 33 is arranged with a slight clearance from the lower plane of the contact portion 310 of the strobe sheet metal 31. 8C and 8D are an enlarged view and a cross-sectional view when the battery 16 is inserted into the battery housing chamber 20 and the rotation restricting portion 33c starts to come into contact with the battery. At this time, the terminal (not shown) of the battery 16 and the battery contact connector 25 are not electrically connected. 8E and 8F are an enlarged view and a cross-sectional view of the battery 16 held by the battery lock mechanism 34. FIG. Between FIG.8 (c)-FIG.7 (e), the terminal (not shown) of the battery 16 and the battery contact connector 25 are contacting, and are electrically conducting.

  FIG. 9A is a front view of the strobe sheet metal 31, and FIG. 9B is an enlarged side view of portion A in FIG. As shown in FIG. 9, the strobe sheet metal 31 is provided with a contact portion 310 that contacts the rotation restricting portion 33c of the battery discharge spring 33 when the battery is inserted and removed. The abutting portion 310 has a convex shape by press working such as half punching or beat. The lower side of the contact portion 310 is separated from the battery discharge spring 33, and the upper side is slightly charged with the battery discharge spring 33 when the battery 16 is sufficiently stored in the battery storage chamber 20, as shown in FIG. It is an inclined surface that makes contact. The surface 311 on which the contact portion 310 is provided also has a part of the inclined surface, but the lower tip is a flat surface. Since the contact portion 310 is a place where the battery discharge spring 33 slides, the friction applied to the battery discharge spring 33 can be reduced by providing such an inclined surface 311.

  However, by providing such an abutting portion 310, the tip of the insertion / extraction portion 33e is likely to swing in the direction opposite to the battery contact piece connector 25 side, and the spring from the battery housing chamber 20 when the battery 16 is inserted. The tip may jump out and not return to its original position.

  FIG. 10 is a simplified diagram showing the swing of the spring before and after the contact portion 310 is charged with and without the constricted portion 33d in the battery discharge spring 33. FIG. 10 (a) and 10 (c) show a state where the battery is housed in the battery housing chamber 20, and FIGS. 10 (b) and 10 (d) show a state where the battery 16 is housed in the battery housing chamber 20 and charged with the contact portion 310. Represents.

  If there is no constriction as shown in FIG. 10B and the spring extends straight, the tip of the spring tends to swing. On the other hand, as shown in FIG. 10D, by providing the constricted portion 33d on the battery contact piece connector 25 side, it is possible to reduce the swing of the insertion / extraction portion 33e and prevent the battery housing chamber 20 from jumping out. However, since the battery discharge spring 33 also approaches the battery contact piece connector 25, it is necessary to maintain a minimum distance from the battery contact piece 25a.

  Here, when the terminal (not shown) of the battery 16 and the battery contact connector 25 are in contact with each other and are electrically connected, the battery discharge spring 33 and the strobe sheet metal 31 are in contact with the rotation restricting portion 33c, respectively. Since it is in contact with the portion 310, it is electrically conductive.

  The strobe sheet metal 31 is screwed and fixed via a ground sheet metal 39 attached to the side surface of the battery housing chamber 20, a hole 31 d provided in the strobe sheet metal 31, and a hole 39 a provided in the ground sheet metal. Is conducting.

  In such a case, even if static electricity entering from the outside flows into the strobe sheet metal 31 and the battery discharge spring 33, the ground sheet metal 39 is electrically connected to the main ground portion of the camera body 1, so that the camera body It is possible to prevent destruction of elements on the substrate in the substrate 1.

  As described above, in the present embodiment, the strobe sheet metal 31 is provided with the contact portion 310 with the battery discharge spring 33 to ensure the conduction of the battery discharge spring 33 when static electricity enters the electronic device. By restricting the deflection of the tip of the battery discharge spring 33, the tip of the spring can be prevented from contacting the battery contact piece 25a.

  In the present embodiment, the battery lid 10 is removed from the battery housing unit 100 in order to make the explanation of the drawing easier to understand, but may be unitized.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

16 battery, 19 flexible wiring board for battery, 20 battery storage chamber, 20g holding boss,
25 Battery contact connector, 25a contact, 31 Strobe sheet metal,
310 contact portion (biasing shape), 33 battery discharge spring, 33a coil portion,
33b straight part, 33c rotation restricting part, 33d constricted part, 33e insertion / extraction part,
100 Battery housing unit

Claims (3)

A battery housing chamber (20) having an opening for inserting and removing the battery (16), an electrical connection part (25) for electrical connection with the battery (16), and the battery (16) Battery discharge means (33) that urges the battery (16) so as to protrude from the opening (301) apart from the electrical connection part (25), and the battery housing chamber (20). In an electronic device comprising a fixing member (31) having conductivity for fixing the electrical connection part (25),
In the fixing member (31), the distance between the battery discharging means (33) and the electrical connection portion (25) is the same before and after the battery is accommodated, or the distance after the battery is accommodated is longer. An electronic device having a biasing shape (310) for biasing the battery discharging means (33).   The biasing shape (310) provided in the fixing member (31) has an inclined surface, and the fixing member (31) is in contact with the battery (16) in contact with the electrical connection part (25). The electronic apparatus according to claim 1, wherein the inclined surface has a maximum urging force for urging the discharging means.   The said discharge | emission means (33) is electrically connected with the said fixing member (31) by contact | abutting with the said biasing shape (310) at the time of battery accommodation, The Claim 1 or Claim characterized by the above-mentioned. 2. The electronic device according to 2.