JP5376840B2 - Electronics - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic device performing power supplying and battery loading with safety and stability. <P>SOLUTION: In a camera 2, a detector switch 22 detects a movement of a lid lock lever 37 of a battery lid unit 30, and after a contact terminal 32a of a contact member 32 retracts in a direction away from a battery 62 in conjunction with the movement of the lid lock lever 37, unlocking of the battery lid unit 30 is performed. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an electronic device.

  Electronic devices including a battery case in which a battery is detachably loaded and a circuit board that is operated by being supplied with power from the battery loaded in the battery case are widely used. The demand for stable operation is increasing. However, when such an electronic device receives an external impact, the electrode of the battery loaded in the battery case and the contact terminal that contacts the electrode and supplies power to the circuit board are instantaneously separated and electrically Disconnection (instantaneous disconnection) occurs, resulting in malfunction or shutdown of the electronic device.

In order to prevent instantaneous interruption, a structure in which the contact terminal follows the movement of the battery at the time of external impact has been proposed (for example, Patent Documents 1, 2, and 4). In addition, a structure has been proposed in which the battery terminal is sharpened and the battery terminal is housed in the battery lid when the battery lid is opened, and the operator of the device touches the sharp part to prevent injury ( For example, Patent Document 3).
JP 09-223488 A (page 4, FIG. 1) JP 2000-299574 (page 3, FIG. 1) Japanese Patent Laying-Open No. 2005-166488 (page 6, FIG. 1) Japanese Patent Laying-Open No. 2007-207666 (page 11, FIG. 9)

  However, the structure of Patent Document 1 may cause plastic deformation of the contact terminal when the battery is loaded. In the structure of Patent Document 2, the contact terminal is sharp and dangerous, and may be deformed. If deformed, the contact resistance with the battery may increase and stable power supply may not be possible. The structure of Patent Document 3 stabilizes the contact resistance between the battery terminal and the battery, but cannot prevent instantaneous interruption. In Patent Document 4, when the follow-up amount is increased, the gap between the battery terminal and the battery becomes minute, and when the battery is accidentally reversely loaded, the battery negative electrode reversely loaded with the battery terminal is touched while the battery lid is closed. In other words, a reverse current may flow through the device and damage the circuit.

  Therefore, an object of the present invention is to provide an electronic device that performs power supply and battery loading safely and stably.

An electronic apparatus according to an aspect of the present invention is an electronic apparatus that has a battery chamber that houses a battery that is inserted and removed in a first direction, and that operates by receiving electric power from the battery. The battery chamber is configured to be slidable in a second direction perpendicular to the first direction, and is rotated around a third direction perpendicular to the first and second directions after sliding to open and close the battery chamber. A battery lid, a lock position that restrains movement of the battery lid, and a lock member configured to be movable in the third direction between a lock release position that enables movement of the battery lid, a contact terminal for the battery of the terminal and the elastic contact and a contact member that is elastically deformable in the first direction, the contact terminal, the unlocked position the locking member from the locked position On the way to the first Along the direction thus being moved away from the terminal of the battery.

  According to the present invention, it is possible to provide an electronic device that performs power supply and battery loading safely and stably.

  Hereinafter, a digital camera (imaging device) 2 of this embodiment will be described as an example of an electronic device with reference to the accompanying drawings. FIG. 1 is an external perspective view of the camera 2 as viewed from the front obliquely above. The camera 2 includes a battery chamber 20 and a battery lid unit 30, and operates by receiving power from the batteries 61 and 62 in a state where the batteries 61 and 62 are loaded in the battery chamber 20 and the battery lid unit 30 is closed. . The battery chamber 20 detachably accommodates the batteries 61 and 62 inserted and removed in the Z direction. The battery lid unit 30 closes the battery chamber 20 so as to be freely opened. In this embodiment, two batteries 61 and 62 are connected in series, and power is guided to a circuit board (not shown) via a main body side contact member (not shown).

  The camera 2 has a zoom lens barrel 41 having an optical zoom lens 41a therein at the center of the front surface thereof. The camera 2 has a power button 43 on its upper surface, and the camera system is activated when pressed. The camera 2 has an AF projection window 42, a zoom finder window 44, and a flash unit 47 at the upper front portion thereof. Furthermore, a zoom operation lever 50 is provided on the upper surface of the camera 2 to operate the shutter button 46 and the optical zoom lens 41a to the tele side (far distance side) or the wide side (short distance side).

  FIG. 2 is a bottom view of the camera 2. Reference numeral 37 denotes a lid lock lever (lock member), which is a component of the battery lid unit 30. In addition, since the lid lock lever 37 has a sliding part (sliding part), a resin member with good sliding property is preferable. Reference numeral 21 denotes a switch lever which is attached to the battery chamber 20 and serves to push a detection switch which will be described later with reference to FIG. Since the switch lever 21 also has a sliding portion (sliding portion), a resin member having good sliding properties is preferable. The detection switch is a detection unit that detects that the lid lock lever 37 is in the lock position (turns on) and detects that the lid lock lever 37 is in a position other than the lock position (turns off).

  The state of FIG. 2 is an ON state in which the lid lock lever 37 pushes the switch lever 21 and the switch lever 21 pushes the detection switch. The switch lever 21 is a transmission part between the lid lock lever 37 and the detection switch. When the lid lock lever 37 is operated in the F1 direction in FIG. 2 (the lid lock lever moving direction or the third direction), the switch lever 21 is operated, and the switch lever 21 is turned off from the detection switch. When in the OFF state, the camera system is programmed to perform a normal termination operation (shutdown). With the lid lock lever 37 moved, the battery lid unit 30 can move in the F2 direction (the lid unit slide or the second direction). Detailed state transition will be described later.

  FIG. 3 is an external perspective view of the camera 2 as viewed from obliquely upward on the back side, and shows a state where the battery lid unit 30 is slid in the F2 direction. The camera 2 has a viewfinder eyepiece window 49, various operation buttons, and a lever on the back surface thereof.

  FIG. 4 is an external perspective view showing the battery lid unit 30 of the camera 2 shown in FIG. The battery lid unit 30 that has been slid by a certain amount in the F2 direction in FIG. 3 is rotated in the R direction shown in FIG. In the open state, the batteries 61 and 62 can be inserted and removed.

  In FIG. 3, the battery lid unit 30 is slid by a certain amount because the oxide film (rust) generated due to aging, etc. at the positive electrode and negative electrode of the battery is scraped off at the protrusion of the battery contact terminal when the battery is loaded. This is to obtain a refreshing effect. The projecting portion is formed by cutting and raising a conical projection or a sheet metal (sharp shape), but the sharp portion is designed with sufficient consideration so that it does not affect the human body.

  5 and 6 are perspective views showing a state in which the battery lid unit 30 shown in FIG. 4 is open with respect to the camera 2 from different angles. In the lid open state in FIG. 5, the tip of the switch lever 21 is exposed. The switch lever 21 is urged in a direction that is always exposed by a coil spring (not shown) housed in the battery chamber 20. When the battery lid unit 30 is closed and the lid lock lever 37 is moved to the locked position, the switch lever 21 is buried in the battery chamber and the detection switch is turned on.

  In FIG. 6, reference numeral 37a denotes a switch lever pressing portion of the lid lock lever 37, which is configured to push the switch lever 21 when the battery lid is closed and locked. 4 and 6, 33a is a rib from which a fixing member 33 made of an insulating member (polycarbonate (PC) is used in the present embodiment) protrudes. 32 is a contact member having low contact resistance, which has contact terminals 32a and 32b that elastically contact the terminals of the batteries 61 and 62, and has a leaf spring shape that can be elastically deformed in the Z direction. As a material of the contact member 32, a surface treatment (gold plating, nickel plating) was performed on a metal having a relatively high plastic limit and a relatively low conductive resistance among copper alloys such as phosphor bronze, titanium copper, and beryllium copper. Materials are preferably used.

  When the batteries 61 and 62 are loaded in the battery chamber 20 of the camera 2, the battery lid unit 30 is closed, and the detection switch is turned on, the circuit board (not shown) provided in the camera 2 is connected to the battery 61 and 62 from the batteries 61 and 62. Power is supplied. When taking a picture, the power button 43 is pressed to activate the camera system. Next, the optical zoom lens 41a is zoomed in accordance with the amount of operation of the zoom operation lever 50, and then the shutter button 46 is half-pressed to project distance measuring light from the AF projection window 42 toward the front of the camera 2. Lighted. Light is received by a photoelectric conversion element such as a CCD (not shown) that has been reflected back from the subject, and a distance to the subject is obtained and an exposure is obtained by a computing device (not shown). Next, the shutter button 46 is fully pressed, and if necessary, a flash is emitted from the flash unit 47 to record an electronic image. When the power button 43 is pressed again after the series of operations is finished, the camera system finish operation is entered to shut down and power off. If the power supply is suddenly cut off by, for example, opening the battery cover during image recording, the image being recorded may be destroyed. Therefore, when the operator operates the lid lock lever 37 during recording and the detection switch changes from the ON state to the OFF state, the camera 2 immediately starts a shutdown operation, and image destruction or system abnormality does not occur. It is configured as follows.

  FIG. 7 is a side view of the battery 61. Since the batteries 61 and 62 have the same shape, only the battery 61 will be described. The battery 61 is an AA dry battery (AA size) in this embodiment, and a primary battery such as an alkaline battery or a secondary battery such as a nickel metal hydride battery can be used. AA batteries generally have a convex positive electrode terminal 61a, a shoulder 61c that is one step lower than the positive electrode terminal 61a, a convex negative electrode terminal 61b, and a shoulder 61d that is one step lower than the negative electrode terminal 61b. The shoulder portions 61c and 61d are insulators or conductors.

  As will be described later, the camera 2 has a reverse insertion short prevention mechanism. The reverse insertion short prevention mechanism prevents destruction, heat generation, and fire spread of electronic devices due to positive / negative reverse insertion (incorrect insertion, reverse loading, erroneous loading) of AA batteries. The reverse insertion short prevention mechanism uses a step between the positive electrode terminal 61a and the negative electrode terminal 61b and is configured so that the contact terminal of the camera 2 and the electrode terminal of the battery do not touch when reversely inserted.

  FIG. 8 is an exploded perspective view of the battery lid unit 30. The battery lid unit 30 includes a battery lid 31, a contact member 32, a fixing member 33, screws 34 and 35, a slide opening / closing plate 36, a lid lock lever 37, and a lever return spring (biasing member) 38. Z is the first direction in which the battery is removed or loaded. More specifically, Z1 is a direction in which the batteries 61 and 62 are loaded. Z2 is the direction in which the batteries 61 and 62 are removed.

  The battery cover 31 is configured to be slidable in the F2 direction (second direction) perpendicular to the Z direction, and is rotated around the F1 direction (third direction) perpendicular to the Z direction and the F2 direction after sliding. To open and close the battery chamber 20.

  The contact member 32 includes a contact terminal 32 a that contacts the plus electrode terminal 62 a, a contact terminal 32 b that contacts the minus electrode terminal 61 b, and engagement portions 32 c and 32 d that engage with the lid lock lever 37. The engaging portions 32 c and 32 d pass through the holes 33 b and 33 c of the fixing member 33 and engage with the hook portions 37 b and 37 c of the lid lock lever 37. Due to the movement of the lid lock lever 37, the contact terminals 32a and 32b are pulled in the lid internal direction (Z2 direction). A rib 33a protrudes from the fixing member 33, passes through the hole 32e of the contact member 32, and serves as a short-circuit prevention mechanism when the battery is reversely inserted.

  The lid lock lever 37 has a convex portion (first engagement portion) 37g, and the slide opening / closing plate 36 has a notch portion (second engagement portion) 36b. The convex portion 37g engages with the notch portion 36b until it moves a certain amount from the initial position value of the lid lock lever 37, and the battery lid unit 30 is restricted from sliding in the F2 direction. That is, the convex part 37g plays the role of a ridge with respect to the notch part 36b. The relationship between the convex portion 37g and the cutout portion 36b may be reversed, and the lid lock lever 37 may have the cutout portion 36b and the slide opening / closing plate 36 may have the convex portion 37g. That is, one of the lid lock lever 37 and the slide opening / closing plate 36 has a first engagement portion, the other has a second engagement portion, and the first engagement portion and the second engagement portion are the lid lock lever. When 37 is in the unlocked position, the engagement is released and the battery lid 31 is allowed to slide in the F2 direction. The first engagement portion and the second engagement portion are engaged when the lid lock lever 37 is at a position other than the unlock position, and prohibits the battery lid 31 from sliding in the F2 direction.

  The slide opening / closing plate 36 is supported in the battery chamber 20 by a shaft 36c. The slide opening / closing plate 36 is fixed to the battery chamber 20 so as to be rotatable around the F1 direction (third direction), and rotates and opens and closes the battery lid 31 around the shaft 36c. Since the slide opening / closing plate 36 is supported by the battery chamber 20 by the shaft 36c, the slide opening / closing plate 36 does not slide, and other components slide integrally in the F2 direction.

  The lid lock lever 37 has a notch (third engaging portion) 37d, and in the lid sliding state (the state shown in FIG. 3), the L-shaped bent portion (fourth engaging portion) 36a of the slide opening / closing plate 36 is a notched portion. Enter 37d. Thereby, the lid lock lever 37 is regulated, and the lid lock lever 37 cannot return to the initial position in the lid sliding state and the lid rotating state (the state of FIG. 4). When the battery cover 31 is slid in the direction opposite to the direction of FIG. 3, the battery is released from the restricted state and returned to the initial position by the urging force of the lever return spring 38. The battery lid unit 30 that has been slid a certain amount is disengaged from the claw of the battery chamber 20 (not shown) and the claw of the battery lid 31, and rotates about the axis as shown in FIG. The relationship between the notch 37d and the L-shaped bent portion 36a may be reversed. The lid lock lever 37 may have the L-shaped bent portion 36a, and the slide opening / closing plate 36 may have the notched portion 37d. That is, one of the lid lock lever 37 and the slide opening / closing plate 36 has a third engagement portion, and the other has a fourth engagement portion. When the battery cover 31 is slid to the position that can rotate around the F1 direction along the F2 direction when the lid lock lever 37 is in the unlocked position, the third engagement portion and the fourth engagement portion engage. Thus, the lid lock lever 37 is prohibited from returning to the locked position by the lever return spring 38.

  The screws 34 and 35 are fixing means, but alternative means such as adhesion and welding may be used. The lid lock lever 37 has a thin portion and a thick portion in the Z direction. Details of the state transition of the lid lock lever 37, the switch lever, the detection switch, and the lid lock release will be described later.

  Next, with reference to FIGS. 4 and 9 to 12, a state in which the battery is housed in the battery chamber 20 will be described. 9 to 12 are partial cross-sectional views taken along Z through the center of the battery 62 of FIG. The battery lid unit 30 is closed.

  FIG. 9 is a schematic partial cross-sectional view showing a state where the battery 62 is positively loaded (with positive and negative electrodes correctly inserted). The battery chamber 20 is made of an insulating member and is made slightly larger than the outer shape of the battery 62. Reference numeral 20 a denotes a protruding portion that protrudes into the battery chamber 20, and serves as a stopper so that the battery 62 cannot be pushed further into the battery chamber 20. Reference numeral 71 denotes a contact member that has been subjected to Z-bending on the camera body side, and is a contact member that is elastically deformable and has low conductive resistance, like the contact terminals 32a and 32b in the battery lid unit 30. As a material of the contact member 71, surface treatment (gold plating, nickel plating) was performed on a metal having a relatively high plastic limit and a relatively low conductive resistance among copper alloys such as phosphor bronze, titanium copper, and beryllium copper. Materials are preferably used.

  A portion of the contact member 71 that comes into contact with the battery 62 is sharply finished so as to easily break the oxide film. The natural state of the contact member 71 is indicated by a broken line. The contact pressure and contact resistance between the negative electrode terminal 62b and the contact member 71 are closely related, and the spring pressure is set to be relatively high. The contact member 32 also has a spring force and is biased in the direction of the battery 62, but is set lower than the spring pressure of the contact member 71, so that the contact terminal 32 a is pressed against the fixing member 33. . Since the fixing member 33 is attached to the battery lid 31 and the battery lid 31 is engaged with the camera 2 by a plurality of claws, the material is selected and configured so as to sufficiently withstand the spring pressure of the contact member 71 and not to be deformed. The engaging part 32c of the contact member 32 is provided, and when there is no battery 62, the engaging part 32c rises as shown by a broken line so as to contact the hooking part 37b. The ribs 33a extending from the fixing member 33 are sized so that they do not touch the shoulder 62c of the battery 62 even if any JIS or IEC standard AA batteries are inserted. If the dimension setting is wrong and the shoulder 62c and the rib 33a are touched, the contact pressure of the positive electrode terminal 62a and the contact terminal 32a of the contact member 32 is only that of the contact member 32, which becomes extremely low and the contact resistance increases. The battery life becomes worse.

  FIG. 10 is a cross-sectional view showing a state where an impact is applied to the camera 2 and the battery 62 is moved in the direction of the arrow Z1. The shoulder portion 62c of the battery 62 collides with the protruding portion 20a of the battery chamber 20 to prevent further movement in the Z1 direction. Even in this state, the contact terminal 32a follows the movement of the positive electrode terminal 62a of the battery 62 in the direction of the arrow Z1, and the electrical connection between them is maintained. Thus, the elasticity of the contact member 32 prevents instantaneous interruption due to an external impact.

  FIG. 11 is a cross-sectional view showing a state in which the battery 62 is loaded in the battery chamber 20 with the positive electrode and the negative electrode being reversed in the reverse direction. In this state, the rib 33a pushes up the negative electrode terminal 62b of the battery 62 upward in the Z1 direction of FIG. 11, and the contact terminal 32a and the negative electrode terminal 62b are sufficiently separated from each other and do not contact each other. As a result, the reverse current does not flow out to the electric circuit, and there is no fear of the camera body being destroyed, heat generation, or smoke generation.

  FIG. 12 is a cross-sectional view showing a state in which the battery 62 is reversely loaded and the battery cover 31 is closed or in the middle of opening, as in FIG. 11. The height of the hook portion 37 b of the lid lock lever 37 is configured to change in conjunction with the movement of the lid lock lever 37. The gap b is wider than the conventional one, and the height of the hook portion 37b can be changed according to the slide to ensure both the follow-up amount and the gap b.

  Next, the movement of the lid lock lever 37 and the state transition of the detection switch, the switch lever 21, and the contact terminals 32a and 32b will be described with reference to FIG.

  FIG. 13A is a schematic cross-sectional view showing the battery lid 31 in a locked state. The battery lid unit 30 is completely closed, and the lid lock lever 37 is in the initial position (the right end position of the hole 31a shown in FIG. 13A). The initial position is a lock position that restrains the movement of the battery lid 31. The lid lock lever 37 is urged by a lever return spring 38 so as to always return to the initial position. The switch lever 21 is pushed upward by the pushing portion 37a of the lid lock lever 37, and the horn portion 22a of the detection switch 22 is pushed up to be in the ON state. The switch lever 21 is guided by the guide portion 20b of the battery chamber 20 so as to slide in the Z direction of FIG. 13A, and is always attached to the lower side (Z2 direction) of FIG. 13A by a coil spring (not shown). It is energized. The detection switch 22 is connected to the electric circuit board and constantly monitors the ON / OFF state. When the ON state is changed from the ON state to the OFF state, if the camera 2 is activated, the system immediately enters an end operation. . When the detection switch 22 is in an OFF state, the camera 2 is configured not to start even when the power button 43 is pressed.

  The lid lock lever 37 has an operation portion 37 e that can be operated by a finger of the operator of the camera 2, and the battery lid 31 has a hole 31 a that the operation portion 37 e exposes to the outside of the camera 2. The fixing member 33 and the battery lid 31 are fixed while maintaining a certain space. The lid lock lever 37 is held so that the space can be moved in the F1 direction between the lock position and the lock release position. The lid lock lever 37 has a thin portion 37h and a thick portion 37i in each of the hook portions 37b and 37c. The thick part 37i is thicker in the Z direction than the thin part 37h.

  The engagement portion 32c is engaged with the lid lock lever 37. When the lid lock lever 37 is slid in the F1 direction, the contact terminal 32a is separated from the battery 62 integrally with the engagement portion 32c by the inclined portion 37f. It is configured to retreat in the Z2 direction.

  When the battery 62 is not loaded in the camera 2, the contact terminal 32a is lifted by the elastic force of the contact member 32, as shown in FIG. When the battery 62 is not loaded in the camera 2, as shown in FIG. 9, the spring pressure of the contact member 71 is stronger than the elastic force of the contact member 32, so the battery 62 is pushed down in the Z2 direction. The positive electrode terminal 62a pushed down comes into contact with the contact terminal 32a, the contact terminal 32a is elastically deformed, and is pressed against the fixing member 33 to stop.

  Next, as shown in FIG. 13B, the switch OFF state in which the lid lock lever 37 is slid by a certain amount in the F1 direction will be described. When the pushing portion 37a of the lid lock lever 37 and the switch lever 21 are separated, the switch lever 21 is moved downward (Z2 direction) in FIG. 13B by a coil spring (not shown), and the engaging portion 21a is moved. The battery chamber 20 is brought into contact with the engaging portion 20c of the battery chamber 20 and stopped. In this state, the detection switch 22 is not pushed into the horn portion 22a, and the detection switch 22 is turned off. In FIG. 13B, the battery 62 is omitted, but the positive electrode terminal 62a and the contact terminal 32a of the contact member 32 are still connected in this state, and power can be supplied from the battery 62 to the circuit board.

  When the detection switch 22 is suddenly turned off from the power-on state of the camera 2, the camera system is immediately terminated, and the shutdown operation is performed before the connection between the battery 62 and the contact terminal 32a is cut off. If the battery lid 31 is suddenly opened from the power-on state and the connection between the battery 62 and the contact terminal 32a is cut off and the power supply is suddenly cut off, the camera 2 terminates various signal processing in the middle. Then, there is a possibility that a malfunction of the camera 2 itself occurs or that image data that is being recorded or has been recorded is destroyed. In order to deal with this problem, the present camera system detects the opening operation of the battery lid 31 by the detection switch 22 before the power is shut off. When it is detected that the battery cover 31 is moving in the opening direction, that is, when it is detected that the cover lock lever 37 is operated and slid, the camera system is shut down before the power supply is cut off. Since there is a time delay between the detection switch 22 being turned off and the power supply being cut off, the shutdown is performed during that time. For this reason, it is possible to avoid problems such as the occurrence of a malfunction of the camera 2 itself and destruction of a recorded / recorded image. In this state, even if the battery 62 moves in the Z1 direction of FIG. 13B due to an external impact, the contact terminal 32a and the engaging portion 32c are configured to follow the movement of the battery 62 by the elastic force of the contact member 32. ing. For this reason, the electrical connection between the battery 62 and the contact terminal 32a is maintained, and no instantaneous interruption occurs.

  Next, as shown in FIG. 13C, the terminal retracted state in which the lid lock lever 37 is further moved in the F1 direction will be described. In this state, the detection switch 22 is still in the OFF state. In the process from the detection switch 22 being turned off to the terminal retracted state, the contact terminal 32 a and the engaging portion 32 c that move together are retracted so as to be in close contact with the fixing member 33 by the inclined portion 37 f of the lid lock lever 37. Be made. As described above, the contact terminal 32a and the engaging portion 32c are retracted in the Z2 direction away from the battery 62 and are restricted by the lid lock lever 37, so that the contact member 32 cannot be elastically moved. In FIG. 13C, the battery 62 is omitted. Even in this state, the positive electrode terminal 62a and the contact terminal 32a of the contact member 32 are connected to each other so that power can be supplied from the battery 62 to the circuit board. In this state, even if the battery 62 moves upward (Z1 direction) in FIG. 13C due to an impact or the like, the contact terminal 32a and the engaging portion 32c cannot follow the movement of the battery 62 due to the elastic force of the contact member 32.

  Next, with reference to FIG. 13D, the lid unlocking state in which the lid locking lever 37 is further moved to the unlocking position will be described. The unlocking position is the left end position of the hole 31a in FIG. 13D, which is a position that allows the battery lid 31 to move. In this state, the detection switch 22 is in an OFF state, and the contact terminal 32a cannot follow the upward movement (Z1 direction) of the battery 62 in FIG. When the operation portion 37e of the lid lock lever 37 moves to the unlock position, the engagement between the convex portion 37g and the notch portion 36b shown in FIG. 8 is released, and the battery lid unit 30 becomes slidable. Even at this time, the connection between the battery 62 and the contact terminal 32a is maintained. When the battery lid unit 30 is slid by a certain amount and the slide is completed, the engagement between the battery lid 31 and the battery chamber 20 is released, and the battery lid unit 30 can rotate as shown in FIG. When the rotation starts, the loaded battery 62 is pushed out in the discharge direction by the contact member 71 having a spring pressure. At this point, the electrical connection between the contact terminal 32a and the positive electrode terminal 62a is interrupted.

  Thus, the contact terminal 32a and the engaging portion 32c are separated from the battery 62 in the middle of the movement of the lid lock lever 37 from the lock position shown in FIG. 13 (a) to the lock release position shown in FIG. 13 (d) ( Move (retract) to a position where it cannot be elastically deformed in the Z2 direction). More specifically, the engaging portion 32c on the opposite side of the contact terminal 32a with respect to the lid lock lever 37 passes from the thin portion 37h of the lid lock lever 37 to the thick portion 37i of the lid lock lever 37 through the inclined portion 37f. It moves while contacting the lid lock lever 37. As a result, the contact terminal 32a moves in a direction away from the battery 62 (Z2 direction).

  The state transition table shown in FIG. 13 (e) summarizes ON / OFF of the detection switch 22, whether or not the contact terminal 32a can follow, whether or not the battery lid unit 30 can slide, and whether or not the battery 62 and the contact terminal 32a are in contact. It is.

  In order to make the explanation easy to understand, the connection between the battery 62 and the contact terminal 32a has been mainly described. However, the battery 61 and the contact terminal 32b similarly move away from the battery according to the movement of the lid lock lever 37 (Z2 Direction). The number of batteries in the present invention is not limited to two as in this embodiment, and the type and shape of the battery are not limited to AA batteries.

  As described above, the camera 2 has a configuration in which the contact terminal of the contact member can be elastically deformed. Even when the camera 2 receives an impact from the outside, the contact terminal of the contact member is moved in the battery chamber of the battery. Follow. As a result, even when an external impact is applied during image recording, instantaneous interruption is prevented and malfunction of the camera 2 is prevented. Also, the elastic deformation amount of the contact terminal of the contact member is regulated by the lid lock lever 37, and is retracted in a direction away from the battery depending on the state. For this reason, when the battery is erroneously loaded, it is possible to avoid the contact terminal and the battery from being touched during the opening / closing operation of the battery lid unit 30, and to prevent the reverse current from flowing out to the circuit board. In addition, since the contact portion of the contact member is sharpened in a range that does not affect the human body, the oxide film can be removed when the battery is loaded or removed, and a good contact state can be created. In addition, the lid open detection is performed in the first half of the movement of the lid lock lever 37, ensuring a long time until the power supply is cut off, and the system termination operation is ensured even when the lid is opened from the power-on state. Therefore, it is possible to adopt a configuration that does not cause destruction of data such as images or malfunction of equipment.

  Note that the electronic device of the present invention is not limited to a camera as long as it operates by receiving power from a battery.

It is a front perspective view of the digital camera of the present embodiment. It is a bottom view of the digital camera shown in FIG. FIG. 2 is a rear perspective view of the digital camera shown in FIG. 1. It is the perspective view which the battery cover opened by the digital camera shown in FIG. It is the perspective view seen from a different angle of the digital camera shown in FIG. It is the perspective view seen from a different angle of the digital camera shown in FIG. It is a side view of the battery inserted / removed in the digital camera shown in FIG. It is a disassembled perspective view of the battery cover unit shown in FIG. It is sectional drawing (normal loading) showing the battery chamber shown in FIG. FIG. 2 is a cross-sectional view (a state in which positive loading and impact are applied) showing the battery chamber shown in FIG. 1. It is sectional drawing (reverse loading) showing the battery chamber shown in FIG. FIG. 2 is a cross-sectional view (reverse loading, during lid opening / closing) representing the battery chamber shown in FIG. 1. It is a figure showing the state transition of the camera shown in FIG.

Explanation of symbols

2 Camera (electronic equipment)
20 Battery compartment 22 Detection switch (detection unit)
30 Battery cover unit 31 Battery cover 31a Hole 32 Contact member 32a, 32b Contact terminal 36 Slide opening / closing plate 36a L-shaped bent part (fourth engaging part)
36b Notch 37 Lid lock lever 37a Switch lever push-in part 37c Notch (third engaging part)
37e Operation part 37f Inclined part 37g Convex part 37h Thin part 37i Thick part 61, 62 Battery

Claims (6)

An electronic device having a battery chamber for storing a battery inserted and removed in a first direction and a battery lid unit for opening and closing the battery chamber, and operating by receiving electric power from the battery,
The battery lid unit is
The battery chamber is configured to be slidable in a second direction perpendicular to the first direction, and is rotated around a third direction perpendicular to the first and second directions after sliding to open and close the battery chamber. A battery lid to
A lock member configured to be movable in the third direction between a lock position that restrains movement of the battery lid and an unlock position that allows movement of the battery lid;
A contact member having a contact terminal that elastically contacts the battery terminal and capable of elastic deformation in the first direction ; and
The electronic device according to claim 1, wherein the contact terminal moves away from the battery terminal along the first direction while the lock member moves from the lock position to the lock release position. The locking member includes a thin portion, and a thick-walled portion than a thickness of the first direction is the thin portion,
The contact member further includes an engaging portion on the side opposite to the contact terminal with respect to the lock member,
The engaging portion, by the locking member as it moves to the unlocked position from the locked position, moves while in contact with the locking member to the thick portion from the thin portion of the locking member, wherein The electronic device according to claim 1, wherein the contact terminal is moved so as to restrict elastic deformation in the first direction of the contact terminal. The battery lid unit is
A slide opening and closing plate which is rotatably secured about said third direction into the battery compartment, further comprising a
One of the slide-off plate and the locking member has a first engagement portion,
The other of the lock member and the slide opening / closing plate has a second engagement portion,
When the locking member is in the unlocked position, it said that the first engagement portion engaging with the second engagement portion is released, permitting the second direction of the slide of the battery cover And
When the locking member is in a position other than the unlocked position, wherein by the first engaging portion and the second engaging portion is engaged, inhibits the second direction of the slide of the battery cover The electronic device according to claim 1, wherein: The battery lid unit is
Further comprising a biasing member that biases the locking member into the locking position,
One of the slide-off plate and the locking member has a third engagement portion,
The other of the lock member and the slide opening / closing plate has a fourth engagement portion,
When the locking member is in the unlocked position, when the battery cover is slid to a rotatable position around the second along said direction of the third direction, and the third engagement portion The electronic apparatus according to claim 3, wherein the lock member is prohibited from returning to the lock position by an urging force of the urging member by being engaged with the fourth engagement portion. The battery lid unit is
The electronic device according to claim 1, wherein the locking member is characterized and it is in the locked position, a detector for detecting that said locking member is in a position other than the locked position, the further comprising Rukoto a. Detecting that the detection unit is at a position other than the lock position,
Thereafter, the contact terminal moves to a position that restricts elastic deformation in the first direction of the contact terminal,
Thereafter, the lock member moves to the unlock position,
6. The electronic apparatus according to claim 5, wherein the battery lid is slidable in the second direction.