JP2010129474A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress expansion of a space of a battery chamber caused by an elastic member to bias the battery to the outside of the battery chamber. <P>SOLUTION: The electronic equipment (100) includes: the battery chamber (122) in which the battery (160) where a recessed part (164) for reversed loading prevention is installed is inserted and extracted; a convex part (134) for reversed loading prevention, which is installed at the end part of the battery chamber, and fits in the recessed part of the battery inserted in a regular direction to the end part of the battery chamber; and the elastic member (150) which is supported by the convex part, is elastically deformed by the battery inserted into the end part of the battery chamber, and biases the battery to an extraction direction by an elastic restoring force. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device.

2. Description of the Related Art An electronic device is known in which an elastic member that urges a battery in the back direction of a battery chamber is provided (see, for example, Patent Documents 1 and 2). In the electronic device described in Patent Document 1, a compression coil spring is used as the elastic member. However, the space of the battery chamber is expanded by the length of the compression coil spring in an elastically contracted state. Further, in the electronic device described in Patent Document 2, a torsion spring is used as the elastic member, but the space of the battery chamber is increased by the height of the support portion of the torsion spring.
JP 2001-223480 A JP 2006-220785 A

  It is an object of the present invention to suppress the expansion of the space in the battery chamber due to the elastic member that urges the battery in the battery chamber extraction direction.

  In order to solve the above-described problem, in the first aspect of the present invention, a battery chamber (122) into which a battery (160) provided with a recess (164) for preventing reverse loading is inserted and removed; Protruding part (134) for preventing reverse loading that fits into the concave part of the battery, which is provided in the inner part and inserted in the normal direction to the inner part of the battery chamber, and supported by the convex part, Provided is an electronic device (100) comprising: an elastic member (150) that is elastically deformed by the battery inserted into the inner part of the chamber and urges the battery in an extraction direction by an elastic restoring force.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is a perspective view showing a digital camera 100 according to the present embodiment with the bottom side facing upward. As shown in this figure, the digital camera 100 includes a rectangular box-shaped housing 102. The housing 102 accommodates a retractable lens barrel, an imaging device such as a CCD, an imaging unit having a shutter, a battery, and the like. The casing 102 is formed thinly in the direction of the optical axis of the lens barrel, includes a lens barrel on the front surface, and includes a display panel 104 and an operation unit 108 on the back surface.

  In the following description, the optical axis direction of the lens barrel is referred to as the front-rear direction, and the vertical direction of the casing 102 in a state where the bottom side of the casing is directed downward is referred to as the up-down direction. The horizontal direction orthogonal to both the front-rear direction and the up-down direction is referred to as the left-right direction. Furthermore, a direction in which the battery is inserted is referred to as a battery insertion direction, a direction in which the battery is extracted is referred to as a battery extraction direction, and a direction in which the battery is inserted / extracted is referred to as a battery insertion / extraction direction. In addition, the battery insertion / extraction direction and the vertical direction are the same.

  The bottom surface 106 of the thin casing 102 in the front-rear direction is formed in a rectangular shape with the left-right direction as the longitudinal direction, and an opening / closing lid 110 is disposed on one end side of the bottom surface 106 in the left-right direction. The opening / closing lid 110 is formed in a rectangular plate shape with the left-right direction as the longitudinal direction, and is fitted into a rectangular opening 112 formed in the bottom surface 106.

  A battery chamber unit 120 into which a battery is inserted and removed is arranged inside the housing 102. The battery chamber unit 120 forms a rectangular battery chamber 122. The battery chamber 122 is arranged to face the opening 112 in the vertical direction, and a battery is inserted into the battery chamber 122 from the opening 112. Further, a terminal portion 140 and a torsion coil spring 150 are disposed on the back side in the battery insertion direction in the battery chamber 122 (hereinafter referred to as the back side in the insertion direction).

  The opening / closing lid 110 is rotatably supported by the battery chamber unit 120 via a hinge 116 disposed on the center side in the left-right direction, and opens and closes the opening 112. The opening / closing lid 110 is provided with a lock mechanism 114, and the closed opening / closing lid 110 can be locked to the housing 102 by the locking mechanism 114.

  FIG. 2 is a perspective view showing the battery chamber unit 120 and the battery 160 loaded in the battery chamber unit 120. As shown in this figure, the battery chamber unit 120 includes a battery box 124 that forms a battery chamber 122. The battery box 124 includes a pair of left and right side walls 126 and 128, and a back wall 130 and an opening wall 132 that connect upper and lower ends of the pair of left and right side walls 126 and 128. The side wall 126 is arranged on the center side in the left-right direction from the battery chamber 122, and the side wall 128 is arranged on the outer side in the left-right direction from the battery chamber 122. The back wall 130 is disposed on the back side in the insertion direction of the battery chamber 122, and the opening wall 132 is disposed on the near side of the battery chamber 122 in the battery insertion direction.

  A convex portion 134 for preventing reverse loading of the battery 160 is formed at a corner portion between the back wall 130 and the side wall 126. On the other hand, a concave portion 164 having a concave-convex relationship with the convex portion 134 is formed at a corner portion on the central side in the left-right direction of a wall portion on the rear side in the insertion direction of the battery 160 (hereinafter referred to as a rear wall portion 162).

  A torsion coil spring 150 is disposed on the center side in the left-right direction of the back wall 130, and a terminal portion 140 is disposed on the outer side in the left-right direction of the back wall 130. The torsion coil spring 150 is supported by the convex portion 134. The terminal unit 140 includes a plus terminal 142, a temperature sensor terminal 144, and a minus terminal 146 that are arranged in parallel from the center in the left-right direction to the outside. An opening / closing lid 110 is rotatably supported via a hinge 116 on the center side in the left-right direction of the opening wall 132, and a lock for locking the battery 160 to the battery box 124 on the outer side in the left-right direction of the opening wall 132. A mechanism 129 is arranged.

  FIG. 3 is a perspective view showing the torsion coil spring 150. As shown in this figure, the torsion coil spring 150 is a double torsion spring, and has a U-shaped arm portion 152 and a pair of coil portions 154 in which both ends of the U-shaped arm portion 152 are spirally wound. And a hook portion 156 in which an end portion of the coil portion 154 is bent at right angles to the axial direction of the coil portion 154. The pair of coil portions 154 are arranged on the same axis, and the arm portion 152 extends in a direction orthogonal to the axial direction of the coil portion 154.

  FIG. 4 is a perspective view showing the inner part of the battery box 124. As shown in this figure, the convex portion 134 is formed in a rectangular shape when viewed in the front-rear direction, and the inside is hollow, and the coil portion 154 of the torsion coil spring 150 is accommodated therein. A pin 158 extending in the front-rear direction is fixed to the convex portion 134, and the pin 158 is inserted through the coil portion 154. An opening 136 through which the arm portion 152 of the torsion coil spring 150 is inserted is formed in the side wall 131 of the convex portion 134, and the arm portion 152 extends from the opening 136 to the battery chamber 122.

  The convex portion 134 protrudes toward the front side in the insertion direction from the surface 137 where the terminal portion 140 is arranged on the back wall 130, and the space between the surface 137 and the convex portion 134 is thinner than the surface 137. A stepped portion 138 is formed which is recessed toward the back side in the battery insertion direction. The plus terminal 142, the temperature sensor terminal 144, and the minus terminal 146 are leaf springs protruding in the battery extraction direction, and are respectively connected to the plus terminal, the temperature sensor terminal, and the minus terminal provided on the back wall 162 of the battery 160. Contact.

  FIG. 5 is an enlarged front sectional view showing the convex portion 134 and the torsion coil spring 150. As shown in this figure, the back wall 130 has an opening 139 that faces the convex portion 134 in the battery insertion / removal direction. A slit 133 extending along the front-rear direction is formed at the boundary between the shelf 135 and the side wall 126 in the convex portion 134, and a hook portion 156 is inserted into the slit 133.

  The hook portion 156 extends in the battery extraction direction and abuts against the side wall 126, and the arm portion 152 abuts on the shelf portion 135 and extends outward in the left-right direction while being inclined in the battery extraction direction. Here, the coil portion 154 is elastically deformed, and the hook portion 156 is pressed against the side wall 126 and the arm portion 152 is pressed against the shelf portion 135.

  FIG. 6 is a plan view of the battery box 124 as viewed from the back side in the insertion direction. As shown in this figure, the pair of coil portions 154 and the pin 158 inserted through the pair of coil portions 154 can be viewed from the opening 139 formed in the back wall 130.

  FIG. 7 is an exploded perspective view showing the inner part of the battery box 124. As shown in this figure, the torsion coil spring 150 is inserted from the opening 139 into the convex portion 134. The arm portion 152 is inserted into the battery chamber 122 through the opening 136, and the hook portion 156 is inserted outside the side wall 126 through the slit 133.

  A pair of front and rear wall portions of the convex portion 134 is formed with a fitting hole 159 that fits with the pin 158, and the pin 158 is fitted into the fitting hole 159 with the torsion coil spring 150 attached to the convex portion 134. Press fit. Since the pin 158 press-fitted into the fitting hole 159 passes through the coil portion 154, the pin 158 prevents the torsion coil spring 150 from falling off the convex portion 134.

  8 is a cross-sectional view taken along line 8-8 in FIG. As shown in this figure, when the reverse loading prevention concave portion 164 provided in the battery 160 and the reverse loading prevention convex portion 134 provided in the battery box 124 face each other in the battery insertion / removal direction, the battery 160 Is inserted into the battery chamber 122 in a normal orientation. Further, on the back wall 162 of the battery 160, a terminal part 170 is arranged facing the terminal part 140 in the battery insertion / removal direction. The terminal portion 170 includes a plus terminal 172, a temperature sensor terminal 174, and a minus terminal 176 that are arranged in parallel from the center in the left-right direction. The plus terminal 172, the temperature sensor terminal 174, and the minus terminal 176 face the plus terminal 142, the temperature sensor terminal 144, and the minus terminal 146 in the battery insertion / removal direction, respectively.

  When the battery 160 is inserted into the battery chamber 122, first, the back wall portion 162 of the battery 160 comes into contact with the distal end portion of the arm portion 152 of the torsion coil spring 150. Here, the distal end portion of the arm portion 152 is disposed on the center side in the left-right direction from the terminal portion 170, and does not contact the terminal portion 170. When the battery 160 is further pushed into the back side of the battery chamber 122, the coil part 154 of the torsion coil spring 150 is elastically deformed, and the arm part 152 is displaced to the back side in the insertion direction. Here, the arm portion 152 is accommodated in the step portion 138.

  When the battery 160 is removed from the battery chamber, the opening / closing lid 110 is opened and the lock mechanism 129 is released. Then, the battery 160 is pushed in the extraction direction by the elastic restoring force of the torsion coil spring 150, and the front side of the battery 160 in the insertion direction protrudes from the battery chamber 122.

  FIG. 9 is a front sectional view showing a state in which the battery 160 is loaded in the battery chamber 122. As shown in this figure, when the battery 160 is inserted in the normal direction to the farthest side of the battery chamber 122, the plus terminal 142, the temperature sensor terminal 144, and the minus terminal 146 are the plus terminal 172 and the temperature sensor, respectively. The terminal 174 and the negative terminal 176 are contacted. Moreover, the recessed part 164 and the convex part 134 fit. Further, the arm portion 152 of the torsion coil spring 150 moves back to the step portion 138.

  FIG. 10 is a front cross-sectional view showing a state in which the battery 160 is inserted in a direction in which the concave portion 164 faces the surface 137 provided with the terminal portion 140, that is, in the opposite direction. As shown in this figure, when the battery 160 is inserted into the battery chamber 122 in the opposite direction, the corner of the back wall 162 opposite to the concave 164 contacts the convex 134. Accordingly, the battery 160 cannot be inserted to the farthest side of the battery chamber 122, and the battery 160 cannot be locked to the battery box 124 by the lock mechanism 129. Therefore, the user can recognize that the battery 160 has been inserted into the battery chamber 122 in the opposite direction.

  Further, when the battery 160 is inserted into the battery chamber 122 in the left-right reverse direction, the distal end portion of the arm portion 152 of the torsion coil spring 150 faces the terminal portion 170 in the battery insertion / removal direction. Here, the distal end portion of the arm portion 152 is located on the center side in the left-right direction from the plus terminal 172 and does not contact the plus terminal 172.

  In addition, three recesses 166 in which a plus terminal 172, a temperature sensor terminal 174, and a minus terminal 176 are respectively arranged are formed in the back wall portion 162 of the battery 160. The width of the concave portion 166 in the front-rear direction (that is, the direction orthogonal to the longitudinal direction of the back wall portion 162) is narrower than the width of the tip portion of the arm portion 152 in the direction, and the tip portion of the arm portion 152 has the concave portion 166. From both sides of the direction. For this reason, the distal end portion of the arm portion 152 abuts on the peripheral edge portion of the recess 166, but does not contact the temperature sensor terminal 174 and the minus terminal 176.

  As described above, in the digital camera 100 according to the present embodiment, the torsion coil spring 150 that urges the battery 160 in the direction in which the battery 160 is extracted from the battery chamber 122 is provided at the back of the battery chamber 122 for the purpose of preventing reverse loading of the battery 160. It is supported by the convex part 134 provided in. That is, by using a portion provided in the inner part of the battery chamber 122 for other purposes as a support part of the torsion coil spring 150, a support space for the torsion coil spring 150 is added to the inner part of the battery chamber 122. Is unnecessary. Thereby, the expansion to the back side of the insertion direction of the space of the battery chamber 122 can be suppressed, the increase in size of the battery chamber unit 120 can be suppressed, and thus the increase in size of the digital camera 100 can be suppressed.

  In addition, a coil portion 154 that generates an urging force is housed in the convex portion 134 as a torsion coil spring 150 that is a spring that urges the battery 160 in the direction in which the battery 160 is pulled out. Further, the concave portion 164 and the convex portion 134 provided in the back wall portion 162 of the battery 160 are in a concave-convex relationship. For this reason, a gap corresponding to the wire diameter of the arm portion 152 of the torsion coil spring 150 may be present between the back wall portion 162 of the battery 160 and the back wall 130 of the battery box 124. Therefore, the expansion of the space of the battery chamber 122 to the back side in the insertion direction can be further suppressed, the increase in size of the battery chamber unit 120 can be further suppressed, and the increase in size of the digital camera 100 can be further suppressed.

  Further, since the arm portion 152 is stored in the stepped portion 138 that is thinned in the back wall 130 and is recessed toward the back side in the battery insertion direction, the surface 137 on which the terminal portion 140 is provided, the back wall portion 162 of the battery 160, and the like. A gap corresponding to the wire diameter of the arm portion 152 is not required between the two. Therefore, the expansion of the space of the battery chamber 122 toward the back side in the insertion direction can be further suppressed.

  Further, the arm portion 152 of the torsion coil spring 150 extends from the convex portion 134 disposed at one end portion in the longitudinal direction in the back portion of the battery chamber 122 to the longitudinal center side, and is in pressure contact with the back wall portion 162 of the battery 160. Thereby, the bias | biasing to the longitudinal direction one end side of the action point of the urging | biasing force which the torsion coil spring 150 acts on the back wall part 162 can be suppressed. Therefore, the inclination with respect to the battery insertion / extraction direction of the battery 160 pushed out from the battery chamber 122 by the urging force can be suppressed, and thus the battery 160 can be smoothly extracted from the battery chamber 122.

  Further, in the digital camera 100 according to the present embodiment, when the battery 160 is inserted into the battery chamber 122 in the left-right reverse direction, the distal end portion of the arm portion 152 is positioned on the center side in the left-right direction with respect to the plus terminal 172, and the plus terminal 172 does not touch. Thereby, it can prevent that the minus terminal 176 and the plus terminal 172 are connected by the arm part 152, and can prevent a short circuit.

  The width in the front-rear direction (that is, the direction perpendicular to the longitudinal direction of the back wall 162) of the recess 166 provided with the plus terminal 172, the temperature sensor terminal 174, and the minus terminal 176 is the width of the tip of the arm part 152. Narrower than the width in the direction, the tip of the arm portion 152 protrudes from the recess 166 to both sides in the direction. For this reason, the tip of the arm portion 152 does not contact the temperature sensor terminal 174 and the minus terminal 176 as well. Therefore, the minus terminal 176, the temperature sensor terminal 174, and the plus terminal 172 can be prevented from being connected by the arm portion 152, and a short circuit can be prevented.

  FIG. 11 is a front sectional view showing a battery chamber unit 220 according to another embodiment of the battery chamber unit 120. As shown in this figure, in the battery box 224 provided in the battery chamber unit 220, convex portions 134 for preventing reverse loading of the battery 260 are formed at the corners of the back wall 130 and the side wall 226, and the back wall 130 and the side wall are formed. A convex portion 234 for preventing reverse loading of the battery 260 is formed at a corner portion with respect to 228. In addition, a concave portion 164 corresponding to the convex portion 134 and a concave portion 264 corresponding to the convex portion 234 are formed in the back wall portion 262 of the battery 260.

  The concave portion 164 and the concave portion 264 are arranged close to one end in the width direction (for example, the front side in the figure) of the back wall portion 262, and the convex portion 134 and the convex portion 234 are also one end in the width direction of the back wall 130. It is arranged close to the side (for example, the front side in the figure). For this reason, when the battery 260 is inserted into the battery chamber 122 in the left-right reverse direction, the left and right end portions of the back wall portion 262 abut against the convex portion 134 and the convex portion 234, so that the user installs the battery 260 in the battery chamber. It can be recognized that it has been inserted into 122 in the reverse direction. Note that the battery 260 can be prevented from being inserted into the battery chamber 122 in the reverse direction by making the lengths of the convex portion 134 and the convex portion 234 different in the left-right direction.

  The convex portion 134 accommodates the coil portion 154 of the torsion coil spring 150, and the arm portion 152 of the torsion coil spring 150 extends from the convex portion 134 to the battery chamber 122. The convex portion 234 also houses the coil portion 154 of the torsion coil spring 150, and the arm portion 152 of the torsion coil spring 150 extends from the convex portion 234 to the battery chamber 122.

  According to the present embodiment, the expansion of the space of the battery chamber 122 toward the back side in the insertion direction can be suppressed, the increase in size of the battery chamber unit 120 can be suppressed, and thus the increase in size of the digital camera 100 can be suppressed. Further, the torsion coil springs 150 are arranged at both ends in the longitudinal direction in the inner part of the battery chamber 122, and the urging force of the torsion coil springs 150 is applied to both ends in the longitudinal direction of the inner wall part 262. Thereby, the inclination with respect to the battery insertion / extraction direction of the battery 260 pushed out from the battery chamber 122 by the biasing force can be suppressed, and thus the battery 260 can be smoothly extracted from the battery chamber 122.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention. For example, the digital camera according to the present embodiment may be changed to another electronic device such as a portable information terminal (so-called PDA) or a mobile phone. In this embodiment, the elastic member that urges the battery to the outside of the battery chamber is a torsion coil spring, but other elastic members such as a torsion spring and a compression coil spring can also be applied.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

It is the perspective view which showed the digital camera 100 which concerns on this embodiment in the state which orient | assigned the bottom side to the upper side. 3 is a perspective view showing a battery chamber unit 120 and a battery 160 loaded in the battery chamber unit 120. FIG. 3 is a perspective view showing a torsion coil spring 150. FIG. FIG. 6 is a perspective view showing a back part of battery box 124. 3 is an enlarged front sectional view showing a convex portion 134 and a torsion coil spring 150. FIG. It is the top view which looked at the battery box 124 from the insertion direction back side. FIG. 4 is an exploded perspective view showing the inner part of the battery box 124. It is 8-8 sectional drawing of FIG. 4 is a front cross-sectional view showing a state in which a battery 160 is loaded in a battery chamber 122. FIG. It is front sectional drawing which shows the state in which the battery 160 was inserted in the left-right reverse direction. It is a front sectional view showing battery room unit 220 concerning other embodiments of battery room unit 120.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Digital camera, 102 Case, 104 Display panel, 106 Bottom surface, 108 Operation part, 110 Opening / closing lid, 112 Opening, 114 Lock mechanism, 116 Hinge, 120 Battery chamber unit, 122 Battery chamber, 124 Battery box, 126, 128 Side wall 129 Lock mechanism, 130 Back wall, 131 Side wall, 132 Open wall, 133 Slit, 134 Protruding part, 135 Shelf part, 136 opening, 137 surface, 138 Step part, 139 opening, 140 terminal part, 142 Plus terminal, 144 Temperature Sensor terminal, 146 negative terminal, 150 torsion coil spring, 152 arm part, 154 coil part, 156 hook part, 158 pin, 159 fitting hole, 160 battery, 162 back wall part, 164 recessed part, 166 recessed part, 170 terminal part, 172 Positive terminal, 17 Temperature sensor terminal, 176 a negative terminal, 220 battery chamber unit, 224 battery box, 226, 228 the side wall, 234 protrusion, 260 battery, 262 inner wall portion, 264 recess

Claims (5)

A battery chamber in which a battery provided with a recess for preventing reverse loading is inserted and removed;
A convex portion for preventing reverse loading, which is provided at the back of the battery chamber and fits with the concave portion of the battery inserted in a normal direction to the back of the battery chamber;
An elastic member supported by the convex portion, elastically deformed by the battery inserted into the inner portion of the battery chamber, and biasing the battery in an extraction direction by an elastic restoring force;
Electronic equipment comprising. The electronic device according to claim 1,
The convex portion is arranged close to one end side in the longitudinal direction in the back portion of the battery chamber,
An electronic apparatus comprising: an arm portion in which the elastic member extends from one end side in the longitudinal direction of the back portion toward the center side and press-contacts a back wall portion provided with the concave portion of the battery. The electronic device according to claim 2,
A device-side terminal portion that is disposed in the back portion of the battery chamber and contacts a battery-side terminal portion disposed in a stepped portion that is recessed in the back wall portion of the battery;
The electronic device in which the arm portion is wider than the stepped portion in a direction orthogonal to the longitudinal direction of the back portion of the battery chamber. The electronic device according to claim 2,
A negative electrode disposed on the back wall portion of the battery when the battery chamber is inserted in a normal direction up to the back portion of the battery chamber. A first terminal in contact with the terminal;
The back wall of the battery is disposed between the arm portion and the first terminal in the back part of the battery chamber, and the battery is inserted in a normal direction to the back part of the battery chamber. A second terminal that comes into contact with a positive terminal disposed between the concave portion and the negative terminal in a portion;
With
When the battery is loaded in the battery chamber in such a direction that the concave portion is located on the other end side in the longitudinal direction in the inner portion of the battery chamber, the distal end portion of the arm portion is more than the plus terminal. The electronic device located in the longitudinal direction one end side in the said back part of a battery chamber. The electronic device according to claim 2,
An electronic apparatus comprising a coil portion, wherein the elastic member is formed integrally with a base end portion of the arm portion, and is accommodated in the convex portion.

Images