JP2012139005A - Charger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charger that suppresses wear of charge terminals and terminals of a portable device.SOLUTION: The charger for charging the portable device includes a case, a slide member, a pivotal member and the charge terminals. The slide member can slide relative to the case between a first position and a second position, and is situated in the first position when the portable device is not placed on the charger and situated in the second position when the portable device is placed on the charger. The pivotal member can pivot relative to the case between a third position and a fourth position, and when the slide member is slid from the first position to the second position, is pressed by the slide member to pivot from the third position to the fourth position. The charge terminals are connected to the pivotal member. The third position is where the charge terminals are away from the positions of the terminals of the portable device placed on the charger. The fourth position is where the charge terminals are in contact with the terminals of the portable device placed on the charger.

Description

  The present invention relates to a charger for charging a battery of a portable device.

  Various portable devices such as a portable RFID reader and a portable barcode reader are known. Such a portable device has a battery and operates with electric power from the battery. Patent Document 1 discloses a charger for charging a battery of a portable device. This charger includes a case, a slide member, a charging terminal, and a helical spring. An opening is formed in the case. The slide member slides with respect to the case. The slide member moves between a closed position for closing the opening and an open position for opening the opening. The charging terminal and the helical spring are fixed inside the case. The charging terminal is connected to a helical spring. In the state where the slide member is located at the closed position, the charging terminal is in contact with the slide member, and the helical spring biases the charging terminal toward the slide member.

  In this charger, the portable device is placed at a position covering the opening of the case. When the portable device is placed on the charger, the slide member moves from the closed position to the open position. When the slide member moves to the open position, the slide member does not support the charging terminal. Then, the charging terminal moves from the opening toward the outside (portable device side) by the force of the helical spring. As a result, the charging terminal comes into contact with the terminal of the portable device (hereinafter referred to as a device side terminal), and the battery of the portable device is charged. When the portable device is removed from the charger, the slide member moves from the open position to the closed position. Then, the slide member comes into contact with the charging terminal, and the charging terminal is pushed back to the original position.

JP 2006-211844 A

  In the charger of Patent Document 1, the charging terminal and the device-side terminal slide in the process of placing the portable device on the charger. That is, in the process of placing the portable device, as the slide member moves to the open position side, the force of the helical spring is released and the charging terminal moves to a position where it comes into contact with the portable device. At the stage where the charging terminal comes into contact with the device side terminal, the portable device is not yet stably held by the charger. When the portable device is further moved downward from the position, the portable device is stably held by the charger. That is, the mobile device moves while the charging terminal is in contact with the device-side terminal after the charging terminal comes into contact with the device-side terminal until the mobile device is stably held by the charger. Therefore, the charging terminal and the device side terminal slide during this movement. At this time, the charging terminal is pressed toward the device side terminal by the helical spring. Therefore, a strong frictional force is generated during sliding, and the charging terminal and the device side terminal are easily worn.

  Thus, in the charger of patent document 1, it slides in the state in which the charging terminal and the apparatus side terminal were strongly pressed. For this reason, while using a charger repeatedly, a charging terminal and an apparatus side terminal were abraded, and there existed a problem that these poor contacts were easy to produce.

  Therefore, the present specification provides a charger in which a charging terminal and a terminal of a portable device are not easily worn.

  The charger disclosed in this specification charges a battery of a portable device. This charger has a case, a slide member, a rotating member, and a charging terminal. The slide member is slidable with respect to the case, is slidable between the first position and the second position, and is located at the first position when the portable device is not placed on the charger. Is in the second position when placed on the charger. The rotating member is rotatable with respect to the case, is rotatable between the third position and the fourth position, and is pushed by the sliding member when the sliding member slides from the first position to the second position. As a result, the third position is rotated to the fourth position. The charging terminal is connected to the rotating member. The third position is a position where the charging terminal is separated from the position of the terminal of the portable device when placed on the charger. The fourth position is a position where the charging terminal comes into contact with the terminal of the portable device when placed on the charger.

  In the process of placing the portable device on the charger, the slide member gradually moves from the first position toward the second position, and the rotating member is moved from the third position by being pushed by the slide member. It turns gradually toward the 4 position. Thereby, the charging terminal connected to the rotating member comes into contact with the device side terminal. The rotating member is gradually moved toward the fourth position in accordance with the movement of the slide member by being pushed by the slide member. For this reason, when the charging terminal comes into contact with the device side terminal, the charging terminal is not strongly pressed toward the device side terminal. Thereafter, the portable device is moved to a position where it is stably held by the charger. During this movement, the charging terminal and the device side terminal slide. However, since the charging terminal is not strongly pressed toward the device-side terminal at least at the start of sliding, these wears can be suppressed.

  In the charger described above, an opening is formed in the case, the first position is a position where the slide member closes the opening, the second position is a position where the slide member opens the opening, and the rotating member is the position of the case. Preferably, the third position is a position where the charging terminal does not protrude outward from the opening, and the fourth position is a position where the charging terminal protrudes outward from the opening.

  According to such a configuration, when the portable device is not placed on the charger, the charging terminal is accommodated in the opening and the opening is closed by the slide member. For this reason, it can suppress that dust etc. adhere to a charge terminal, while not using a charger.

  In the charger described above, the angle between the moving direction of the portable device when the portable device is placed on the charger and the moving direction of the charging terminal when the rotating member moves to the fourth position is 90 degrees. It is preferable that it is less than.

  According to such a configuration, the moving direction of the charging terminal when the charging terminal comes into contact with the device-side terminal and the moving direction of the device-side terminal are approximated, so the distance that they slide is shortened. Therefore, wear of the charging terminal and the device side terminal can be further suppressed.

  The charger described above is preferably configured such that the charging terminal is in surface contact with the terminal of the portable device.

  According to such a configuration, the charging terminal and the device-side terminal can be more reliably conducted.

  In the charger described above, the slide member and the charging terminal are preferably not in contact with each other.

  According to such a configuration, wear of the charging terminal due to sliding with the slide member can be prevented.

FIG. 2 is a schematic cross-sectional view of the charger 10. FIG. 2 is a schematic cross-sectional view of the charger 10. FIG. 2 is a schematic cross-sectional view of the charger 10. FIG. 2 is a schematic cross-sectional view of the charger 10. The perspective view of the rotation member 30 and the torsion coil spring 40. FIG. The enlarged view of the contact part of FIG.

The characteristics of the charger according to the embodiment are listed below.
(Feature 1) It has a biasing member that biases the rotating member in a direction from the fourth position toward the third position.
(Feature 2) It has a biasing member that biases the slide member in a direction from the second position toward the first position.

  As shown in FIG. 1, a portable terminal 80 is placed on the charger 10. The portable terminal 80 is a portable RFID reader, for example, and reads information from the RFID tag by wireless communication. The portable terminal 80 has a built-in battery. A pair of terminals 82 are formed on the back surface of the lower end portion of the mobile terminal 80. In addition, since a pair of terminal 82 overlaps in the viewpoint of FIG. 1, only the near terminal of the pair of terminals 82 is shown in FIG. The charger 10 charges the battery of the mobile terminal 80 through the terminal 82. As shown in the figure, the charger 10 includes a case 12, a slide cover 20, a rotating member 30, a torsion coil spring 40, and a pair of charging terminals 50.

  The case 12 has a hollow structure in which a space 12a is formed. A recess 14 is formed on the upper surface of the case 12. A portable terminal 80 is placed in the recess 14. The recess 14 is formed in a shape that can stably hold the mobile terminal 80 placed thereon. An opening 16 is formed on one side surface 14 a of the recess 14. Through the opening 16, the space 12 a inside the case 12 communicates with the outside space. The bottom surface 14b of the concave portion 14 is formed with a concave portion 18 extending along an extension line of the side surface 14a. The side surface 14a of the recess 14 and the side surface 18a of the recess 18 are formed on the same plane.

  The slide cover 20 is a substantially flat member. The slide cover 20 has a lower end inserted into the recess 18. A coil spring 28 is installed in the recessed portion 18 in a compressed state. Although not shown, the case 12 is formed with a guide for guiding the slide cover 20. The slide cover 20 can move up and down with respect to the case 12 by being guided by the guide. In a state where the portable terminal 80 is not placed on the charger 10, the slide cover 20 is biased upward by the coil spring 28 and is disposed at a position that closes the opening 16 shown in FIG. 1. When the portable terminal 80 is placed on the charger 10, as shown in FIG. 4, the slide cover 20 moves downward (inside the recess 18), and the coil spring 28 is compressed. When the portable terminal 80 is lifted from the charger 10, the coil spring 28 extends and the slide cover 20 returns to the position shown in FIG. Further, a convex portion 22 is formed on the back surface of the slide cover 20 (the surface on the space 12a side inside the case 12). The convex portion 22 extends through the opening 16 into the space 12 a inside the case 12.

  The rotating member 30, the torsion coil spring 40, and the charging terminal 50 are disposed in the space 12 a inside the case 12. A support shaft 38 is installed in the space 12 a inside the case 12. The support shaft 38 extends in a direction perpendicular to the paper surface of FIG. The rotating member 30 is rotatably attached to the support shaft 38. As shown in FIGS. 5 and 6, the rotating member 30 includes two cylindrical portions 32 in which the support shafts 38 are inserted, a first plate portion 34 extending upward from the cylindrical portion 32, and a lateral direction from the cylindrical portion 32. It has the 2nd board part 36 extended in a direction (opening 16 side). The entire rotation member 30 can rotate relative to the case 12 around the support shaft 38.

  As shown in FIGS. 5 and 6, the torsion coil spring 40 includes a coil portion 42 in which a wire is wound spirally and arm portions 44 and 46 in which the wire extends linearly from the coil portion 42. The coil part 42 is disposed between the two cylindrical parts 32 of the rotating member 30. A support shaft 38 is inserted in the center of the coil portion 42. The arm portion 44 is located on the lower surface side of the first plate portion 34 of the rotating member 30. The tip of the arm portion 44 is bent and fixed to the case 12. The arm portion 46 is in contact with the lower surface of the second plate portion 36 of the rotating member 30. The arm portion 46 applies torque to the second plate portion 36 of the rotating member 30 in the direction indicated by the arrow 100 in FIG. Therefore, in the state shown in FIG. 1, the rotating member 30 is stopped with the first plate portion 34 in contact with the arm portion 44.

  As shown in FIG. 1, the pair of charging terminals 50 are fixed to the upper surface of the first plate portion 34 of the rotating member 30. In addition, since a pair of charging terminal 50 overlaps in the viewpoint of FIG. 1, only the charging terminal 50 of this side is shown in FIG. Although not shown, the charging terminal 50 is electrically connected to a charging circuit (not shown) of the charger 10. When the rotation member 30 is rotated, the charging terminal 50 does not protrude outward from the opening 16 (ie, the position shown in FIG. 1), and protrudes outward from the opening 16 (ie, shown in FIG. 4). 4 (the charging terminal 50 shown in FIG. 4 protrudes outward from the opening 16 when the portable terminal 80 is not present). As shown in FIG. 4, when the mobile terminal 80 is placed on the charger 10, the terminal 82 of the mobile terminal 80 is positioned outside the opening 16. That is, the charging terminal 50 is moved away from the position of the terminal 82 when the portable terminal 80 is placed on the charger 10 (that is, the position shown in FIG. 1) by rotating the rotating member 30. It moves between the positions in contact with the terminals 82 (that is, the positions shown in FIG. 4). In the state shown in FIG. 4, the charging terminal 50 is in surface contact with the terminal 82.

  Next, the movement of each part when the portable terminal 80 is placed on the charger 10 will be described. When the mobile terminal 80 is moved downward from the state shown in FIG. 1 and the mobile terminal 80 enters the recess 14, the bottom surface of the mobile terminal 80 contacts the upper end of the slide cover 20. When the portable terminal 80 is further moved downward, the slide cover 20 is pushed down by the portable terminal 80. When the slide cover 20 moves to the position shown in FIG. 2, the convex portion 22 of the slide cover 20 comes into contact with the second plate portion 36 of the rotating member 30. When the slide cover 20 is further moved downward from the position shown in FIG. 2, the convex portion 22 of the slide cover 20 pushes down the second plate portion 36 of the rotating member 30. For this reason, against the torque of the torsion coil spring 40, the rotation member 30 gradually rotates in the direction indicated by the arrow 102 in FIG. As the rotating member 30 rotates in this way, the charging terminal 50 gradually moves toward the opening 16 side. As shown in FIG. 2, since the area of the opening 16 that is not covered by the slide cover 20 is covered by the mobile terminal 80, the charging terminal 50 gradually moves toward the mobile terminal 80. As a result, as shown in FIG. 3, the charging terminal 50 comes into contact with the mobile terminal 80 covering the opening 16. At this time, the charging terminal 50 of the charger 10 contacts the terminal 82 of the portable terminal 80. As described above, the charging terminal 50 gradually rotates as the slide cover 20 moves. Therefore, the charging terminal 50 is not pressed against the terminal 82 when the charging terminal 50 comes into contact with the terminal 82. When the portable terminal 80 is moved downward by a minute distance from the position shown in FIG. 3 to the position shown in FIG. 4, the portable terminal 80 is stably held by the charger 10. Further, while the slide cover 20 moves from the position shown in FIG. 3 to the position shown in FIG. 4, the turning member 30 turns in the direction shown by the arrow 102 in FIG. As a result, the charging terminal 50 is urged toward the terminal 82. That is, the charging terminal 50 is not pressed toward the terminal 82 at the initial stage of contact shown in FIG. 3, and the charging terminal 50 is connected to the terminal 82 from the state shown in FIG. 3 to the state shown in FIG. The force for energizing toward gradually increases. Thereby, a reliable connection between the charging terminal 50 and the terminal 82 is ensured. Thereby, power is reliably supplied to the battery of the portable terminal 80, and the battery is charged. When the portable terminal 80 moves from the position shown in FIG. 3 to the position shown in FIG. 4, the charging terminal 50 and the terminal 82 move relative to each other in a state where they are in contact with each other. That is, the charging terminal 50 slides with the terminal 82. However, since the charging terminal 50 is not pressed against the terminal 82 at the beginning of contact shown in FIG. 3, the frictional force generated between them is reduced at the beginning of contact. Thereby, wear of the charging terminal 50 and the terminal 82 is suppressed as compared with the conventional charger.

  Next, the movement of each part when removing the portable terminal 80 from the charger 10 will be described. When the portable terminal 80 is moved upward from the state shown in FIG. 4, the slide cover 20 is moved upward by the biasing force of the coil spring 28. Further, as the slide cover 20 moves upward, the rotating member 30 is gradually rotated in the direction indicated by the arrow 100 in FIG. 4 by the biasing force of the torsion coil spring 40. When the state shown in FIG. 4 is changed to the state shown in FIG. 3, charging terminal 50 is separated from terminal 82. That is, while the portable terminal 80 moves from the position shown in FIG. 4 to the position shown in FIG. 3, the charging terminal 50 and the terminal 82 move relative to each other in a state where they are in contact with each other. That is, the charging terminal 50 slides with the terminal 82. However, since the rotating member 30 gradually rotates in the direction indicated by the arrow 100 while moving from the position shown in FIG. 4 to the position shown in FIG. 3, the force that biases the charging terminal 50 toward the terminal 82. Gradually decreases. Therefore, the frictional force during sliding is reduced. Thereby, wear of the charging terminal 50 and the terminal 82 is suppressed as compared with the conventional charger. When the portable terminal 80 is further moved upward from the position shown in FIG. 3, the slide cover 20 and the rotating member 30 are returned to the original positions as shown in FIG.

  As described above, in the charger according to the embodiment, the rotating member is rotated by being pushed by the slide member that moves together with the portable device, whereby the charging terminal connected to the rotating member is connected to the portable device. Move from a position that does not contact the terminal to a position where it contacts. Therefore, the frictional force when the charging terminal of the charger and the terminal of the portable device slide is reduced, and wear of these terminals is suppressed. Moreover, in the charger of an Example, the rotation member is urged | biased by the biasing member (namely, torsion coil spring) toward the position side which does not contact the terminal of a portable apparatus. For this reason, when removing a portable apparatus from a charger, the force by which the charging terminal of a charger is urged | biased toward the terminal of a portable apparatus reduces gradually with the movement of a slide member. As a result, even when the portable device is detached, the frictional force when the charging terminal of the charger and the terminal of the portable device slide is reduced, and wear of these terminals is suppressed.

  FIG. 6 shows an enlarged view of the contact portion of FIG. An arrow 104 in FIG. 6 indicates a moving direction of the contact portion of the charging terminal 50 when the charging terminal 50 of the charger contacts the terminal 82 of the portable device in the process of placing the portable device on the charging terminal. In addition, an arrow 106 in FIG. 6 indicates a moving direction of the portable device when the portable device is placed on the charging terminal. As shown in the figure, the angle θ1 between these movement directions is less than 90 degrees. Therefore, the distance that the charging terminal 50 of the charger slides with the terminal 82 of the portable device is shorter than when the moving direction is the reverse direction (angle θ1 is 90 degrees or more). This also suppresses terminal wear.

  In this charger, the charging terminal is installed in the space inside the case, and the opening is opened and closed by the slide cover while the portable device is not placed. Therefore, foreign matter such as dust is prevented from adhering to the charging terminal. Further, in this charger, the slide cover and the charging terminal do not come into contact with each other, so that wear due to sliding between the slide cover and the charging terminal does not occur.

Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.
The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

10: charger 12: case 14: recess 16: opening 20: slide cover 28: coil spring 30: rotating member 38: support shaft 40: torsion coil spring 50: charging terminal 80: portable terminal 82: charging terminal

Claims (5)

A charger for charging a battery of a portable device,
Case and
It is slidable with respect to the case, is slidable between the first position and the second position, is located in the first position when the portable device is not placed on the charger, and the portable device is attached to the charger. A slide member located in the second position when placed;
It is pivotable with respect to the case, is pivotable between a third position and a fourth position, and is third when pushed by the slide member when the slide member slides from the first position to the second position. A rotating member that rotates from a position to a fourth position;
A charging terminal connected to the rotating member,
Have
The third position is a position where the charging terminal leaves from the position of the terminal of the portable device when placed on the charger,
The fourth position is a position where the charging terminal contacts the terminal of the portable device when placed on the charger.
A charger characterized by that. An opening is formed in the case,
The first position is a position where the slide member closes the opening,
The second position is a position where the slide member opens the opening,
The rotating member is installed inside the case,
The third position is a position where the charging terminal does not protrude outward from the opening,
The fourth position is a position where the charging terminal protrudes outward from the opening.
The charger according to claim 1.   The angle between the moving direction of the portable device when the portable device is placed on the charger and the moving direction of the charging terminal when the rotating member moves to the fourth position is less than 90 degrees. The charger according to claim 1 or 2.   The charger according to any one of claims 1 to 3, wherein the charging terminal is configured to be in surface contact with a terminal of the mobile device. The charger according to claim 1, wherein the slide member and the charging terminal do not contact each other.

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