JP2012125005A - Charger for secondary batteries - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charger for secondary batteries capable of solely charging secondary batteries to be charged having two or more electrodes on one plane and having different sizes and electrode positions.SOLUTION: A battery fix setting part 12 has press plates 13 and 14. The press plate 13 can be moved in the lengthwise direction of a battery outer shape (Y-axis direction in the figure), and the press plate 14 can be moved in the width direction of the battery outer shape (X-axis direction in the figure). The battery fix setting part 12 is provided with a vertical rib 15 with which the press plate 13 is engaged, and a horizontal rib 16 with which the press plate 14 is engaged. That is, the press plate 13 engages with the vertical rib 15 formed in the battery fix setting part 12 and is capable of moving along the Y-axis direction, and the press plate 14 engages with the horizontal rib 16 formed in the battery fix setting part 12 and is capable of moving along the X-axis direction.

Description

  In the present invention, in a rechargeable secondary battery (battery pack) having two or more electrodes on the same surface, a rechargeable secondary battery (battery pack) having a different shape and a different electrode position is charged with one charger. The present invention relates to a rechargeable battery charging device.

In recent years, mobile phones have become more and more multifunctional, there are many heavy users, the number of people with spare battery packs is increasing, such as poor battery life, and many people want to charge a single battery pack.
However, when a new mobile phone is purchased, due to restrictions on the design and structure of the mobile phone, the received secondary battery (battery pack) often has a new shape and electrode position, and it is necessary to replace the battery pack charger.

  The conventional charger 1 shown in FIG. 10 has a storage unit 2 for a secondary battery to be charged and has a connection terminal 3 that contacts an electrode of the secondary battery to be charged.

  The storage unit 2 and the connection terminal unit 3 are fixedly disposed on the charger 1 and charge a charged secondary battery (battery pack).

  In FIG. 11, 4, 5, 6, and 7 are rechargeable secondary batteries (battery packs) having different shapes and electrode positions. 8, 9, 10 and 11 are electrodes of the respective rechargeable secondary batteries. In the charger 1, since the size of the storage unit 2 for the secondary battery to be charged is fixed, for example, only the secondary battery 4 to be charged can be stored and fixed in the charger 1 and charged. Similarly, the connection terminal 3 provided in the charger 1 is fixed at a position matching the electrode 8 provided in the charged secondary battery 4. That is, the charger 1 is a dedicated charger for the secondary battery 4 to be charged.

  Therefore, in the charger 1, the charged secondary batteries 5, 6, 7 having different shapes and electrode positions other than the charged secondary battery 4 cannot be charged.

Japanese Patent Laid-Open No. 11-187581

According to Japanese Patent Application Publication No. 3027867, a connector having a connection terminal connected to a terminal of a charging unit provided in a mobile phone is rotatably mounted on an operation unit of a substrate, and the connection terminal By forming the connection terminal so as to be movable, even if the connection terminal is formed at an arbitrary position such as a bottom surface part or a side end part of the mobile phone, the terminal member is rotated and the position of the connection terminal is moved and changed. It follows and matches any position and is applied regardless of the type of mobile phone. Each connector has two long slide holes arranged in parallel, and a disk-shaped sliding piece is inserted into the insertion recess of the connector body and rotated or slid in the left-right direction to charge the cellular phone. It matches with the terminal of the part.

  Moreover, according to the utility model registration document 1, the charging case has a pair of movable connection terminal blocks, a variable voltage generation unit, a voltage setting unit, and a polarity switching unit, corresponding to the charged secondary battery. Charging is performed by adjusting the position of the movable electrode and matching the voltage and polarity, and can appropriately charge the charged secondary battery with different shape, structure, dimensions, voltage, polarity, etc. It is.

However, in these prior art documents, since one terminal is aligned with respect to the electrode, the operation is complicated, and since the user touches the terminal portion, foreign matter is likely to adhere and there is a high risk of contact failure.
In addition, although it is described that the terminal portion is moved and aligned, there is no description of a method for fixing the terminal portion after alignment, so there is a risk of contact failure due to impact or vibration on the device. .
Moreover, about patent document 1, when attaching or detaching a mobile telephone, there exists a possibility of damaging a mobile telephone by a connection terminal. Patent Document 2 describes that the terminal portion is movable, but does not describe the specific structure of the movable terminal portion, and the automatic setting method uses a sensor or the like and is expensive. It is expected that.
An object of the present invention is to provide a rechargeable secondary battery having different shapes and electrode positions in a rechargeable secondary battery (battery pack) in which at least two electrodes are located on the same surface at the same interval and at the same interval. An apparatus that can be charged by a charger is provided, and a secondary battery charging apparatus that is easy to operate and has high contact reliability in actual use.

The present invention has a battery fixing setting unit for positioning and fixing a charged secondary battery (battery pack) having two or more electrodes on the same surface to a charging device, and the electrode of the charged secondary battery (battery pack) By having a terminal position setting unit having a movable terminal that can move together with a contact terminal having two or more electrodes in a part that matches the above-mentioned condition, the charged object has a different shape and a different electrode position. A secondary battery (battery pack) can be charged with a single charger.
The rechargeable secondary battery (battery pack) fixed setting unit is capable of moving in a two-dimensional direction on the outer shape of the target rechargeable secondary battery (battery pack) so as to position the secondary battery (battery pack) to be charged. By having the plate, it is possible to position and fix the charged secondary batteries (battery packs) having different shapes with a single charger.
The contact portion of the movable terminal of the terminal position setting unit is movable in parallel with the electrode surface of the charged secondary battery (battery pack) at a constant interval, and the movable terminal contacts the electrode at the target electrode position. By having a contact terminal, it is possible to charge the to-be-charged secondary battery (battery pack) having different electrode positions with a single charger.
The movable terminal of the terminal position setting unit is fixed to approach the electrode surface of the charged secondary battery (battery pack), or touches a part other than the electrode by including a switching unit that moves away from the electrode surface. Therefore, a charger with high contact reliability is possible without damaging the secondary battery (battery pack) to be charged.

  According to the secondary battery charging device of the present invention, the charged secondary batteries (battery packs) in which at least two or more electrodes are positioned on the same surface at the same interval are charged in various shapes and electrode positions. A secondary battery (battery pack) can be charged with a single charger. In addition, a secondary battery charging device having high contact reliability without any damage other than the electrodes of the secondary battery to be charged can be provided.

Overall plan view of a secondary battery charging device according to an embodiment of the present invention The longitudinal cross-sectional view of the secondary battery charging device by the form of this invention The cross-sectional view of the secondary battery charging device by the form of this invention The top view of the terminal position setting part by the form of this invention The cross-sectional view of the terminal position setting part by the form of this invention The longitudinal cross-sectional view of the terminal position setting part by the form of this invention The detailed top view of the movable terminal part by the form of this invention Sectional view of a fixed state of a movable terminal portion according to an embodiment of the present invention The movable state sectional view of the movable terminal part by the form of the present invention External view of a conventional battery pack charger External view of battery packs with different shapes and electrode positions

Hereinafter, a secondary battery charger according to an embodiment of the present invention will be described with reference to the drawings.
(Embodiment 1)
With reference to FIGS. 1-3, the secondary battery charging device by the form of this invention is demonstrated.

  FIG. 1 is an overall plan view of a secondary battery charging device according to an embodiment of the present invention. 2 is a longitudinal sectional view of the secondary battery charging device, and FIG. 3 is a transverse sectional view of the secondary battery charging device.

As shown in FIG. 1, the battery fixing setting unit 12 includes pressing plates 13 and 14. The holding plate 13 is movable in the length direction (Y-axis direction in the drawing) of the battery outer shape, and the holding plate 14 is movable in the width direction (X-axis direction in the drawing) of the battery outer shape.
Further, the battery fixing setting portion 12 is formed with a vertical rib 15 that engages the pressing plate 13 and a horizontal rib 16 that engages the pressing plate 14. That is, the pressing plate 13 engages with the vertical rib 15 formed in the battery fixing setting portion 12 and is movable in the Y-axis direction, and the pressing plate 14 is fixed to the horizontal rib 16 formed in the battery fixing setting portion 12. Engage and move in the X-axis direction.
Therefore, when positioning the small battery pack 17 which is a secondary battery to be charged in batteries having different shapes, the holding plates 13 and 14 are respectively matched to the outer shape of the small battery pack 17 (in the thin hatched portion in the figure). Moving. When positioning the large battery pack 18 which is a large rechargeable secondary battery, the holding plates 13 and 14 are moved according to the outer shape of the large battery pack 18 with the point A as the base point (in the shaded area in the figure). . Accordingly, the batteries having different shapes can be positioned and fixed. Although not shown, the pressing plates 13 and 14 can be fixed by existing techniques by providing a spring or the like between the pressing plates 13 and 14 and the engagement rib.

  Next, with reference to FIGS. 4-6, the terminal position setting part by the form of this invention is demonstrated.

  FIG. 4 is a plan view of a terminal position setting unit according to an embodiment of the present invention. 5 is a cross-sectional view of the terminal position setting unit, and FIG. 6 is a vertical cross-sectional view of the terminal position setting unit.

  As shown in FIG. 4, the terminal position setting unit 19 has a movable terminal unit 20. Further, the terminal position setting portion forms a lateral rib 21 that engages with the movable terminal portion 20. The small battery pack 17 has an electrode 22, and the large battery pack 18 has an electrode 23. As shown in FIG. 4, there are three electrodes, and the distance between them is constant.

  The movable terminal portion 20 can be translated (X axis in the figure) along the lateral rib 21. That is, it is possible to move from the position of the electrodes 22 and 23 of the small battery pack 17 or the large battery pack 18 to the electrode position 25, that is, to the position of the movable terminal portion 24. As shown in FIG. 5, the lateral rib 21 has a triangular concave-convex portion 26 that is the same as the distance between the electrodes 22 and 23, and a spring or the like (not shown) between the movable terminal portion 20 and the lateral rib 21. It becomes possible to move at regular intervals.

  Moreover, the movable terminal part 20 has the contact terminal 27, as shown in FIG. 6, and is connected to the flexible substrate 28 (FIG. 5). Therefore, the small battery pack 17 and the large battery pack 18 can be charged by being connected to the charging circuit via the flexible substrate 28 when the contact terminals 27 of the movable terminal portion 20 come into contact with the electrodes 22 and 23, respectively.

  Next, with reference to FIGS. 7-9, the movable terminal part by the form of this invention is demonstrated.

  FIG. 7 is a plan view of the movable terminal portion according to the embodiment of the present invention. 8 is a longitudinal sectional view of the movable terminal portion in a fixed state, and FIG. 9 is a longitudinal sectional view of the movable terminal portion in a moving state.

  As shown in FIG. 7, the movable terminal portion 20 has a contact terminal 27. It also has a button 29 and a spring 31.

Next, the fixed state of the movable terminal portion 20 will be described with reference to FIG.
The button 29 provided on the movable terminal portion 20 protrudes from the movable terminal portion 20. The button 29 is engaged with a recess 30 provided in the lateral rib 21. Further, a pressure is applied to the lateral rib 21 by a spring 31 provided in the movable terminal portion 20, and the movable terminal portion 20 is positioned and fixed to the lateral rib 21 via a button 29. In this state, the contact terminal 27 provided in the movable terminal portion 20 is positioned and fixed in contact with the electrode 22 and the electrode 23 of the small battery pack 17 and the large battery pack 18.
Further, when it is desired to position the electrodes 22 and 23 of the small battery pack 17 and the large battery pack 18 more precisely, the small battery pack 17 and the large battery pack 18 are provided with a concave portion 32 and the convex portion 33 engaged with the concave portion 32 is provided. You may form in the movable terminal part 20. FIG.

Next, the movable state of the movable terminal portion 20 will be described with reference to FIG.
When the button 29 is pushed in the X direction in the figure in the state of FIG. 8, the joint portion of the button 29 is removed from the concave portion 30 provided in the lateral rib 21, and the movable terminal portion 20 becomes movable. At this time, the spring 31 included in the movable terminal is deformed, and the movable terminal portion 20 moves in the Y-axis direction in the figure. Therefore, the movable terminal portion is moved from the electrode 22 and the electrode 23 of the small battery pack 17 and the large battery pack 18. The contact terminal 27 included in 20 can be separated.

  Further, when the pressing of the button 29 is released from the state of FIG. 9, the spring 31 provided in the movable terminal portion 20 returns to the state of FIG. 8 by the spring pressure. That is, the movable terminal portion 20 also returns to the state shown in FIG.

  That is, the movable terminal portion 20 presses a button 29 provided on the movable terminal portion 20, whereby the contact terminal 27 is separated from the small battery pack 17, the electrode 22 and the electrode 23 of the large battery pack 18, and along the lateral rib 21. When the pressing is released, the movable terminal 20 can be positioned and fixed by contacting the contact terminals 27 with the electrodes 22 and 23 of the small battery pack 17 and the large battery pack 18.

  By using the battery fixing setting unit, the terminal position setting unit, and the movable terminal unit according to the present invention, at least two electrodes to be charged are located on the same surface at the same interval (battery). Charged secondary batteries (battery packs) with different shapes and electrode positions can be charged with a single charger. In addition, the contact terminal 27 can form a secondary battery charging device having no contact damage other than the electrodes of the charged secondary battery (battery pack) and having high contact reliability.

  The rechargeable battery charging device according to the present invention is a rechargeable secondary battery in which various shapes and electrode positions are different in a rechargeable secondary battery (battery pack) in which at least two electrodes are located on the same surface at the same interval. The battery (battery pack) can be charged with a single charger. And it is useful as a secondary battery charging device with no contact damage other than the electrodes of the secondary battery (battery pack) to be charged and having high contact reliability.

8, 22, 23 Electrode 12 Battery fixing setting portion 13, 14 Holding plate 15 Vertical rib 16, 21 Horizontal rib 17 Small battery pack 18 Large battery pack 19 Terminal position setting portion 20, 24 Movable terminal portion 25 Electrode position 26 Triangular irregularities Part 27 Contact terminal 28 Flexible substrate 29 Button 30 Concave part 31 Spring 32 Concave part 33 Convex part

Claims (4)

A battery fixing setting unit for fixing a secondary battery to be charged provided with two or more electrodes on the same surface, and a movable terminal having two or more contact terminals on the same surface, the movable terminal being movable, A secondary battery charging device comprising: a terminal position setting unit that fixes the movable terminal at an arbitrary position. The secondary battery charging device according to claim 1, wherein the secondary battery fixing setting unit includes a pressing plate that is movable in a two-dimensional direction on an outer shape of the target secondary battery to be charged. 3. The secondary battery charging device according to claim 1, wherein a movable terminal of the terminal position setting unit is movable in parallel to the electrode surface of the charged secondary battery at a constant interval. The movable terminal of the terminal position setting unit is fixed close to the electrode surface of the charged secondary battery, or has a switching unit that switches to movable movement. Secondary battery charger.

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