JP2008228569A - Battery charger for portable equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery charger for portable equipment capable of preventing dust from sticking to a feeder terminal. <P>SOLUTION: An opening part 7 is provided to a receiving part 6 to which portable equipment is attached. A lid member 21 which revolves vertically is provided at the rear of the receiving part 6, and the lid member 21 is always held at such position as covers the opening part 7 from above by a helical torsion spring 23. Thus, sticking of dust to a feeder terminal 8 is prevented. When portable equipment is put in the receiving part 6, the lid member 21 revolves downward and a contact point 8a of the feeder terminal 8 protrudes from a slit 24 of the lid member 21, thereby the contact point 8a contacting a power receiving terminal of the portable equipment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a charging device for a portable device that, when a portable device is mounted, charges a secondary battery of the portable device by bringing a power feeding terminal into contact with a power receiving terminal of the portable device.

An example of this type of charging device is described in Patent Document 1. This is a type in which the mobile device is placed horizontally on the housing. When the mobile device is placed on the housing, a pair of power supply terminals provided in the housing are opened from the opening formed on the upper surface of the housing by the link mechanism. It protrudes outward from the upper part, contacts the power receiving terminal of the mobile device, and charges the secondary battery of the mobile device.
JP2003-9409

In the charging device described in Patent Document 1, since the opening portion through which the power supply terminal enters and exits faces upward, dust floating in the air may enter the housing from the opening portion. The charging terminal of the charging device does not protrude outside from the opening of the housing when not charging, but the contact part is located inside the opening, so that dust floating in the air is not open. There is a risk of adhering to the contact portion of the power supply terminal facing the terminal. Dust adhering to the contact portion of the power supply terminal gradually accumulates in the contact portion due to long-term use, which may impede electrical contact with the power receiving terminal of the portable device and impair the charging function.

  Such adhesion of dust to the power supply terminal is likely to occur when the opening for projecting the power supply terminal to the outside is upward. However, since dust floating in the air moves in any way depending on the air flow, the flow of air is not limited to the case where the opening is upward, and whether it is horizontal or even downward. Depending on the condition, there is a possibility of adhering to the power supply terminal facing the opening.

  This invention is made | formed in view of said situation, The objective is to provide the charging device for portable devices which can prevent adhesion of dust to a power feeding terminal.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a main body having a mounting portion for mounting a portable device, and an opening portion provided in the main body and formed in the mounting portion from the mounting portion side. A power supply terminal that contacts the power receiving terminal of the mobile device mounted on the mounting portion and that charges the secondary battery of the mobile device, and the mounting portion is more than the power supply terminal when the mobile device is not mounted. And a dustproof device for preventing dust from adhering to the power supply terminal by covering the power supply terminal on the side, wherein the dustproof device forms the opening of the mounting portion. A cover member having a slit that is continuous with the opening, and the cover member covers a position where the opening is covered from above and a surface where the opening of the mounting portion is formed. Superimposed The power supply terminal is protruded from the slit, and the power supply terminal is provided so as to be able to reciprocate between a position where the power supply terminal can contact the power receiving terminal of the portable device mounted on the mounting portion. .
According to this configuration, the covering member can prevent dust from adhering to the power supply terminal.

  According to a second aspect of the present invention, in order to eliminate the need for a user to operate the cover member, biasing means for holding the cover member at a position covering the opening from above is provided, and the cover member includes the mounting portion. When the mobile device is attached to the mobile device, the mobile device is displaced so as to overlap the surface of the mounting portion where the opening is formed, due to the weight of the mobile device.

In the invention of claim 3, the covering member is provided with a cleaning member that comes into contact with the power supply terminal when the power supply terminal protrudes from the slit.
According to this configuration, since the power feeding terminal can be cleaned by the cleaning member, the contact resistance between the power feeding terminal and the power receiving terminal can be reduced.

The said cleaning member can be comprised from a rotatable brush like Claim 4.
If the cleaning member is a rotatable brush, the brush rotates by contact with the power supply terminal. Therefore, the cleaning of the power supply terminal at the same place is prevented, and the cleaning effect is improved.

[Reference example]
Hereinafter, reference examples of the present invention will be described with reference to FIGS. This reference example is applied to a charging device of a hand-held bar code reader (hereinafter referred to as BHT). First, as shown in FIGS. 3 and 6, the BHT 1 as a portable device has various keys 2 arranged in the lower half of the front surface, and a pair of power receiving terminals 3 and 3 at the lower end of the rear portion. Is provided. The BHT 1 incorporates a battery (not shown) as an operating power source. This battery is a rechargeable secondary battery.

  FIG. 1 shows a charging device 4 for charging the secondary battery of the BHT 1. The main body 5 of the charging device 4 is made of plastic, and the main body 5 is formed with a concave receiving portion 6 that functions as a mounting portion for receiving the lower half of the BHT 1 and holding the BHT 1. A rectangular opening 7 is formed in the lower portion of the rear surface of the receiving portion 6, and contact portions 8 a and 8 a of a pair of power supply terminals 8 and 8 provided in the main body 5 are formed from the opening 7. It can protrude into the receiving portion 6. The pair of power supply terminals 8 and 8 are connected to a charging circuit (not shown) in the main body 5 and contact the power receiving terminals 3 and 3 of the BHT 1 to charge the secondary battery.

  The power supply terminals 8 and 8 are made of spring wire, and the contact portions 8a and 8a are bent and formed in a mountain shape. Torsion coil portions 8 b and 8 b are formed at one end of the contact portions 8 a and 8 a, and the torsion coil portions 8 b and 8 b are fitted to a shaft portion 9 provided in the main body 5. By fitting the torsion coil portions 8 b and 8 b to the shaft portion 9, the power supply terminals 8 and 8 are rotated about the shaft portion 9 in the arrow A direction and the arrow B direction that are protruding and retracting with respect to the receiving portion 6. It becomes possible.

  The winding ends 8 c and 8 c of the torsion coil portions 8 b and 8 b are hooked on a hanging portion 10 formed on the main body 5. As a result, the torsion coil portions 8b and 8b generate a biasing force that biases the entire power supply terminals 8 and 8 in the protruding direction indicated by the arrow A, and the power supply terminals 8 and 8 are rotated in the arrow A direction by the biasing force. The contact portions 8a and 8a are projected from the opening 7 into the receiving portion 6 by being energized.

  An interlocking member 11 is disposed between the pair of power supply terminals 8 and 8 in the main body 5. The interlocking member 11 is formed such that a cylindrical portion 11b is formed at one end portion of a sliding contact portion 11a bent and formed in a mountain shape, and a pressing portion 11c is protruded from the left and right sides at the other end portion. The cylindrical portion 11b of the interlocking member 11 is fitted to the shaft portion 9, and the interlocking member 11 can be rotated in the arrow A direction and the arrow B direction around the shaft portion 9. . In a state where the interlocking member 11 is supported by the shaft portion 9, the pressing portion 11 c is located above the locking portions 8 d and 8 d formed at the distal end portions of the contact portions 8 a and 8 a of the pair of power supply terminals 8 and 8 ( It is located on the opening 7 side).

  When the pressing portion 11c is positioned above the locking portions 8d and 8d, when the power feeding terminals 8 and 8 are rotated in the direction of arrow A by the urging force of the torsion coil portions 8b and 8b, the power feeding terminal is connected to the pressing portion 11c. The engaging portions 8d and 8d of 8 and 8 come into contact with each other from the rear to rotate the interlocking member 11 together with the power supply terminals 8 and 8 in the arrow A direction. As a result, not only the contact portions 8 a and 8 a of the power supply members 8 and 8 but also the sliding contact portion 11 a of the interlocking member 11 protrudes from the opening 7 into the receiving portion 6.

  The amount of protrusion of the contact portions 8a and 8a and the sliding contact portion 11a into the receiving portion 6 at this time is such that the locking portions 8d and 8d at the tip end portions of the contact portions 8a and 8a are passed through the pressing portion 11c of the interlocking member 11. It is regulated by abutting against the lower surface of the lower end of the opening 7 to regulate the rotation of the power supply terminals 8 and 8 in the direction of arrow A. The amount of protrusion of the restricted contact portions 8a and 8a and the sliding contact portion 11a into the receiving portion 6 is larger (higher) in the sliding contact portion 11a than in the contact portions 8a and 8a.

  A lid member 12 serving as a dustproof device is disposed below the rear part in the receiving part 6 so as to be in contact with the rear surface of the receiving part 6 and to be slidable in the vertical direction. And the cover member 12 opens and closes the opening part 7 by the slide of the up-down direction. At the lower end of the lid member 12, a base part 12a for receiving the BHT 1 inserted into the receiving part 6 is formed. Between the base part 12a and the bottom surface of the receiving part 6, the lid member 12 is placed upward. A compression coil spring 13 is provided as a biasing means for biasing.

  The lid member 12 is always pushed up to the position where the opening 7 is closed by the urging force of the compression coil spring 13. In a state in which the opening 7 is closed by the lid member 12, the sliding contact portion 11 a of the interlocking member 11 is pressed by the lid member 12 and rotated in the direction of arrow B, that is, in a state of being submerged in the main body 5. . Then, the interlocking member 11 is in a state where the locking portions 8d and 8d of the power supply terminals 8 and 8 are pressed by the pressing portion 11c along with the rotation in the direction of the arrow B, whereby the power supply terminals 8 and 8 are interlocked. The member 11 is rotated in the direction of arrow B by the member 11 and is immersed in the main body 5.

  The lid member 12 is formed with an opening 14 having a size similar to that of the opening 7 of the receiving portion 6 extending from the pedestal 12a to above the pedestal 12a. When the BHT 1 is inserted into the receiving portion 6, the lid member 12 slides downward against the urging force of the compression coil spring 13 by receiving the weight of the BHT 1 at the base portion 12 a. The opening part 14 is made to coincide with the opening part 7 of the receiving part 6 to open the opening part 7.

  When the opening 7 is opened, the power supply terminals 8 and 8 are rotated in the direction of the arrow A which is the protruding direction by the urging force of the torsion coil parts 8b and 8b, and the contact parts 8a and 8a are connected to the power receiving terminals 3 and 3 of the BHT1. Make contact. At this time, the sliding contact portion 11a of the interlocking member 11 protruding into the receiving portion 6 more than the contact portions 8a, 8a contacts the BHT 1 until the contact portions 8a, 8a contact the power receiving terminals 3, 3 in the direction of arrow A. 6, a groove 15 is formed in the lower part of the back surface of the BHT 1 so as to be positioned between the pair of power receiving terminals 3 and 3 as shown in FIG.

Next, the operation of the above configuration will be described.
When the BHT 1 is not inserted into the receiving portion 6 (non-charging), the opening 7 of the receiving portion 6 is closed by the lid member 12 as shown in FIGS. For this reason, dust is prevented from adhering to the power supply terminals 8, 8, and when the contact portions 8 a, 8 a come into contact with the power receiving terminals 3, 3, the electric contact is not hindered.

  In order to charge the secondary battery of BHT 1, BHT 1 is inserted into receiving portion 6 of main body 5 of charging device 4. Then, since BHT1 comes to be put on the base part 12a of the lid member 12, the lid member 12 slides downward against the urging force of the compression coil spring 13 and opens the opening 7 of the receiving part 6. Then, since the sliding contact portion 11a of the interlocking member 11 is detached from the lid member 12, the power supply terminals 8 and 8 rotate in the direction of arrow A while pushing up the interlocking member 11 by the urging force of the torsion coil portions 8b and 8b. And as shown in FIG. 4, it contacts the receiving terminals 3 and 3 of BHT1. At this time, the sliding contact portion 11a of the interlocking member 11 enters the groove 15 of the BHT 1, and the power feeding terminals 8 and 8 are brought into contact with the power receiving terminals 3 and 3 with an appropriate contact pressure by the urging force of the torsion coil portions 8b and 8b. It can be so. Thereby, the secondary battery of BHT1 is charged by the charging device 4.

  When charging of the secondary battery is completed, BHT 1 is extracted from the receiving unit 6. Then, the lid member 12 slides upward by the urging force of the compression coil spring 13 to close the opening 7. When the lid member 12 starts to move upward at this time, the lower end portion of the opening 14 of the lid member 12 is interlocked. Since the slidable contact with the lower piece of the mountain-shaped slidable contact portion 11a of the member 11 and slides upward while pushing down the slidable contact portion 11a, the interlocking member 11 rotates in the direction of arrow B and enters into the main body 5. I will die. As the interlocking member 11 rotates in the arrow B direction, the pressing portion 11c pushes down the locking portions 8d and 8d of the pair of power supply terminals 8 and 8 so that the pair of power supply terminals 8 and 8 are moved in the arrow B direction. Turn to.

  As described above, the interlocking member 11 does not bring the lid member 12 into contact with the power supply terminals 8, 8, and moves the power supply terminals 8, 8 in the main body 5 in conjunction with the vertical sliding (opening / closing operation) of the lid member 12. Or immerse into the receiving part 6 from the main body 5. Thus, unlike the case where the lid member 12 is brought into direct contact with the contact portions 8a, 8a of the power supply terminals 8, 8, there is no possibility that an unreasonable force acts on the power supply terminals 8, 8, so that the power is deformed and received. There is no problem that the contact with the terminals 3 and 3 is disturbed.

[One Embodiment]
7 to 9 show an embodiment of the present invention. This embodiment will be described below. In FIGS. 7 to 9, the same parts as those described in the reference example are denoted by the same reference numerals, and detailed description thereof is omitted.
In this embodiment, the interlocking member 11 of the reference example is not provided. The lid member (covering member) 21 as a dustproof device is supported not to slide in the vertical direction but to be rotatable in the vertical direction by a shaft 22 provided slightly above the opening 7 of the receiving portion 6. Has been.

  The shaft 22 is fitted with a torsion coil spring 23 as urging means, and both winding ends thereof are connected to the main body side 5 and the lid member 21 side. As a result, the lid member 21 is urged to rotate in the direction of arrow C, which is the upward direction, and always covers the opening 7 of the main body 5 from above as shown in FIG. For this reason, the contact portions 8 a and 8 a of the pair of power supply terminals 8 and 8 are always in a state of protruding into the receiving portion 6 from the opening portion 7.

  When the BHT 1 is inserted into the receiving portion 6, the lid member 21 receives the weight of the BHT 1 and rotates around the shaft 22 in the arrow D direction, which is the lower side. By the rotation of the lid member 21, the pair of power supply terminals 8 and 8 protrudes to the front side of the lid member 21 through the pair of slits 24 and 24 formed in the lid member 21. The downward rotation of the lid member 21 is stopped when the lid member 21 overlaps the rear surface of the receiving portion 6. At this time, the slits 24, 24 are connected to the opening 7, and the contact portions 8 a, 8 a of the power supply terminals 8, 8 are in a state protruding to the required height in the receiving portion 6.

  On the front side of the lid member 21, two rotatable brushes 25 as cleaning members are arranged for each of the pair of slits 24, 24. The bristle 25a portion of the brush 25 covers the slit 24. When the contact portion 8a of the power supply terminal 8 protrudes to the front side of the lid member 21 through the slit 24 as described above, the contact portion 8a becomes the brush. The brush 25 protrudes from the bristles 25a while contacting the bristles 25a and rotating the brush 25 in the directions of arrows E and F.

  In the above configuration, when the BHT 1 is inserted into the receiving portion 6, the weight is received and the lid member 21 rotates downward against the urging force of the torsion coil spring 23 to a position where it overlaps the rear surface of the receiving portion 6. During the downward rotation of the lid member 21, the contact portions 8 a and 8 a of the pair of power supply terminals 8 and 8 protrude from the slits 24 and 24 to the front side of the lid member 21 through the bristles 25 a of the brush 25. At this time, the contact portions 8a and 8a are rubbed by the brush 25 to remove rust and the like. The contact portions 8a and 8a of the power supply terminals 8 and 8 protruding from the bristles 25a of the brush 25 are in contact with the power reception terminals 3 and 3 of the BHT 1 inserted in the receiving portion 6 to supply power.

As described above, according to the present embodiment, when the BHT 1 is not charged, the lid member 21 is held at a position that covers the opening 7 from above, so that dust in the air is received by the lid member 21 and the power supply terminal 8. , 8 is prevented from adhering.
Moreover, since the contact portions 8a and 8a of the power supply terminals 8 and 8 can be cleaned by the brush 25, an increase in contact resistance of the contact portions 8a and 8a due to adhesion of rust or the like can be prevented.

[Other Embodiments]
In one embodiment of FIGS. 7 to 9, a bellows-shaped covering member that closes the lower end portion of the lid member 21 and the peripheral surface of the receiving portion 6 may be provided. The brush 25 may be replaced with a rubber plate having a cut.

Sectional drawing which shows the reference example of this invention in the state at the time of non-charging Enlarged cross-sectional view of the main part shown in a non-charged state Sectional view of the charging device shown in the state during charging Enlarged sectional view of the main part shown in the state of charging Exploded perspective view of the main part The perspective view which shows the back side of BHT Sectional drawing which shows one Embodiment of this invention in the state at the time of non-charging Sectional view showing the state when charging Exploded perspective view of the main part

Explanation of symbols

  In the drawings, 1 is a BHT (portable device), 3 is a power receiving terminal, 4 is a charging device, 5 is a main body, 6 is a receiving portion (mounting portion), 7 is an opening, 8 is a power supply terminal, 8a is a contact portion, 11 Is an interlocking member, 12 is a lid member (dustproof device, cover member), 13 is a compression coil spring (biasing means), 14 is an opening, 21 is a lid member (dustproof device), and 23 is a torsion coil spring (biasing means). ), 24 are slits, and 25 is a brush (cleaning member).

Claims (4)

A main body having a mounting portion for mounting a portable device;
Charging a secondary battery of the portable device that is provided in the main body, protrudes from the opening formed in the mounting portion to the mounting portion side, contacts a power receiving terminal of the portable device mounted on the mounting portion A power supply terminal to
A dustproof device that prevents dust from adhering to the power supply terminal by covering the power supply terminal on the mounting portion side of the power supply terminal when the portable device is not mounted;
In the charging device for portable devices provided with
The dustproof device is constituted by a cover member having a slit that is continuous with the opening when superimposed on the surface of the mounting portion where the opening is formed.
The covering member overlaps the position where the opening is covered from above and the surface of the mounting portion where the opening is formed, and the power supply terminal protrudes from the slit so that the power supply terminal is mounted to the mounting portion. 2. The charging device for a mobile device according to claim 1, wherein the charging device is reciprocally movable between a position at which the power receiving terminal of the mobile device can be contacted. 3. In the portable device charging device according to claim 1,
An urging means for holding the covering member at a position covering the opening from above is provided,
The cover member is configured to be displaced so as to overlap with a surface of the mounting portion where the opening is formed when the portable device is mounted on the mounting portion. A charging device for portable devices. In the portable device charging device according to claim 1 or 2,
The portable device charging device, wherein the covering member is provided with a cleaning member that contacts the power supply terminal when the power supply terminal protrudes from the slit. In the charging device for portable devices according to claim 3,
The said cleaning member is comprised from the brush which can rotate freely, The charging device for portable devices characterized by the above-mentioned.

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