JP3625653B2 - Charged object and charger - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an object to be charged and a charger, and more particularly to an object to be charged and a charger that can be attached and detached securely at a fixed position of the charger and that can be easily detached. In this specification, an object to be charged is used in a broad sense including a pack battery, an electric device equipped with the pack battery, an electric device incorporating a rechargeable secondary battery, and the like.
[0002]
[Prior art]
It is important that the object to be charged to be charged by the charger is accurately mounted at a predetermined position of the charger. This is because the charging terminal of the charger and the electrode terminal of the charging target are connected so as not to cause poor contact. When a contact failure occurs between the charging terminal and the electrode terminal, the object to be charged cannot be charged in a normal state. For example, when the contact resistance increases, the charging current of the charged object decreases, and the charged object cannot be charged efficiently. Further, since the charger detects the battery voltage of the object to be charged and determines whether or not the battery is fully charged, the battery voltage cannot be normally detected when contact failure occurs. For this reason, it may be misrecognized as a full charge in the state where a to-be-charged object is not fully charged.
[0003]
In order to eliminate such an adverse effect, a structure has been developed in which an object to be charged can be locked and attached to an attachment portion of a charger. For example, the charged body is provided with concave portions on both side surfaces of the charged body, and convex portions that are guided and locked by the concave portions are provided on the mounting portion of the charger. When the body to be charged is mounted at a fixed position of the mounting portion of the charger, the convex portion is guided by the concave portion and can be mounted in a locked state so that the body to be charged does not come out of the mounting portion.
[0004]
[Problems to be solved by the invention]
A mechanism that can be mounted on a charger in a state in which the object to be charged is locked makes it difficult to easily remove the object to be charged if the object to be charged is securely locked in order to reduce contact failure. On the other hand, if the attachment / detachment is simplified, it becomes difficult to accurately attach the object to be charged in place. It is very difficult to satisfy both of the requirements that the object to be charged is accurately locked in place and attached, and that the attachment / detachment is simple and opposite.
[0005]
In addition, the charged object and the charger of this structure are simple and easy because a slight dimensional error of the connecting portion makes it impossible to mount the charged object in a correct position or, conversely, the connected state is significantly hardened. In addition, it makes it impossible to attach and detach smoothly. For this reason, the to-be-charged body and the charger to be mounted so as to be detachable in the locked state are required to have extremely high accuracy in forming the connecting portion. This increases the molding cost and makes it difficult to mass-produce cheaply.
[0006]
The present invention has been developed for the purpose of solving such drawbacks. An important object of the present invention is to provide a to-be-charged body and a charger capable of effectively preventing contact failure by attaching and detaching the to-be-charged object simply and easily and quickly and accurately attaching it to a fixed position of the charger. There is to do.
[0007]
[Means for Solving the Problems]
The to-be-charged body and the charger of the present invention have a mounting portion 4 on which the charger 2 is detachably mounted on the upper surface of the case 3, and the to-be-charged body 1 is mounted on the mounting portion 4. Configured to charge. The to-be-charged body 1 is attached to the attachment portion 4 of the charger 2 so as to be tiltable, and has a lock portion 10 and a lock release portion 11 on the side surface. The mounting portion 4 provided in the case 3 of the charger 2 has an elastic locking piece 12 that is pushed and elastically deformed by the unlocking portion 11 of the tilted body 1 to be charged. The elastic locking piece 12 includes a locking portion 12A that is locked to the lock portion 10 of the body 1 to be charged attached to the mounting portion 4, and a pressing portion 12B that is pressed by the lock release portion 11 of the body 1 to be tilted. And have.
[0008]
When the charged body 1 is mounted on the mounting portion 4 of the case 3, the locking portion 12 </ b> A of the elastic locking piece 12 is locked to the lock portion 10 so that the charged body 1 is not pulled out. When the object to be charged 1 is removed from the charger 2, the object to be charged 1 is tilted. The to-be-charged body 1 that tilts pushes the pressing portion 12 </ b> B with the unlocking portion 11 to deform the elastic locking piece 12. The deformable elastic locking piece 12 releases the locking of the locking portion 12A and the locking portion 10 or makes it easier to release the charged body 1 from the mounting portion 4.
[0009]
According to a second aspect of the present invention, in the charged object and the charger, the charged object 1 has a lock portion 10 and a lock release portion 11 on both sides, and the lock portion 10 is disposed above the lock release portion 11. Yes.
[0010]
In an object to be charged and a charger according to a third aspect of the present invention, the upper end of the elastic locking piece 12 is integrally formed with the plastic case 3 so that the charger 2 can be elastically deformed.
[0011]
According to a fourth aspect of the present invention, there is provided an object to be charged and a battery charger having a locking portion 10 and an unlocking portion 11 of the object to be charged 1 as recesses, and a locking portion 12A provided on an elastic locking piece 12 of the charger 2. The pressing portion 12B is a convex portion.
[0012]
The charged object and the charger according to claim 5 of the present invention are configured such that the inclined surface 13 is provided in the pressing portion 12B, and when the charged object 1 is tilted, it is gradually and strongly pressed by the unlocking portion 11. Has been.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify charged bodies and chargers for embodying the technical idea of the present invention, and the present invention does not specify charged bodies and chargers as follows. .
[0014]
Further, in this specification, in order to facilitate understanding of the scope of claims, the numbers corresponding to the members shown in the examples are referred to as “the scope of claims” and “the means for solving the problems”. It is added to the member shown by. However, the members shown in the claims are not limited to the members in the embodiments.
[0015]
FIG. 1 shows a state in which an object to be charged 1 is attached to a charger 2 and is charged. The to-be-charged body 1 shown in the figure is a battery pack. However, this invention does not specify a to-be-charged body as a battery pack. The battery to be charged can be various electric devices (for example, mobile phones) in which a battery pack is mounted or a secondary battery that can be charged is built in. A charger 2 shown in FIG. 1 is provided with a mounting portion 4 on a top surface of a case 3 for detachably mounting the body 1 to be charged. The charged body 1 is detachably attached to the attachment portion 4.
[0016]
The mounting portion 4 has a depth at which the lower portion of the body to be charged 1 is inserted and can be self-supported in a posture in which the body to be charged 1 is inclined, and the width thereof is as shown in FIG. A little wider than that. The mounting portion 4 can hold the charged body 1 in an inclined posture, and holds the charged body 1 so that it can move forward as indicated by an arrow A in FIG. 1 when the charged body 1 is removed. As shown in the cross-sectional view of FIG. 1, the mounting portion 4 has a back support portion 5 that supports the back surface of the body 1 to be charged and a front support portion 6 that supports the front surface of the body 1 to be charged. Has been established. The back surface support portion 5 is in contact with a position away from the lower end of the body 1 to be charged, and the front surface support portion 6 supports the lower end of the body 1 to be charged. The back surface support portion 5 protrudes from the inner surface of the mounting portion 4, and a gap for inclining the charged body 1 is provided below the back surface support portion 5.
[0017]
When the charged body 1 is inserted, the mounting portion 4 having this structure supports the charged body 1 in a posture in which the charged body 1 is inclined by the front support portion 6 and the back support portion 5. A charging terminal 8 that contacts the electrode terminal 7 of the body 1 to be charged is provided on the bottom surface of the mounting portion 4. The charging terminal 8 is a metal wire that can be elastically deformed. The charging terminal 8 is fixed to a printed circuit board 9 built in the case 3 of the charger 2, and is connected to the inner surface of the mounting portion 4 from an electrode window that opens on the bottom surface of the mounting portion 4. It protrudes elastically. Further, the charging terminal 8 is connected to a charging circuit (not shown) mounted on the printed circuit board 9 and contacts the electrode terminal 7 to charge the object 1 to be charged.
[0018]
The charged body 1 has a lock part 10 and an unlocking part 11 on the side surface of the lower part of the case, and the case 3 of the charger 2 is tilted on the inner surface of the mounting part 4. An elastic locking piece 12 that is elastically deformed by being pushed by is provided. The elastic locking piece 12 includes a locking portion 12A that is locked to the lock portion 10 of the body 1 to be charged attached to the mounting portion 4 and a pressing portion 12B that is pressed by the lock releasing portion 11 of the body 1 to be tilted. And have.
[0019]
When the body to be charged 1 is mounted on the mounting portion 4 of the case 3, the locking portion 12 </ b> A of the elastic locking piece 12 is locked to the lock portion 10 so that the charged body 1 is not pulled out. When the body to be charged 1 is tilted, the unlocking portion 11 of the body to be charged 1 pushes the pressing portion 12B to deform the elastic locking piece 12, and the locking of the locking portion 12A and the locking portion 10 is released or released. As a state in which it is easy to be performed, the to-be-charged body 1 is easily removed from the mounting portion 4.
[0020]
The to-be-charged body 1 shown in the partial cross-sectional front view of FIG. 3 and the side view of FIG. 4 has a lock portion 10 provided above the lock release portion 11. The lock portion 10 and the lock release portion 11 are concave portions provided in a vertical row on the side surface of the case, and the locking portions 12A and the pressing portions 12B of the elastic locking pieces 12 that are convex portions are inserted therein.
[0021]
As shown in the cross-sectional views of FIGS. 2 and 5, the elastic locking piece 12 is provided integrally with the plastic case 3 of the charger 2. The elastic locking piece 12 is integrally formed with the case 3 so that both sides and the lower end are separated from the case 3 and the upper end is connected to the plastic case 3 so as to be elastically deformable. The elastic locking piece 12 has a pressing portion 12B at the lower end and a locking portion 12A above the pressing portion 12B. The pressing portion 12 </ b> B and the locking portion 12 </ b> A are disposed at positions facing the lock release portion 11 and the lock portion 10 of the body 1 to be charged attached to the attachment portion 4.
[0022]
As shown in the enlarged sectional view of FIG. 2, the pressing portion 12B of the elastic locking piece 12 protrudes higher than the locking portion 12A. The elastic locking piece 12 having this structure can be greatly elastically deformed by pressing the elastic locking piece 12 more strongly when the charged body 1 is inclined. For this reason, the to-be-charged body 1 can be removed more easily.
[0023]
As shown in the enlarged sectional view of FIG. 6, the pressing portion 12 </ b> B is provided with an inclined surface 13 that is pressed by the unlocking portion 11 of the charged body 1 that is inclined. The inclined surface 13 at the tip is pushed by the lock release unit 11 of the body 1 to be charged. That is, when the charged body 1 placed in the mounting portion 4 is tilted in the direction indicated by the arrow B, the inclined surface 13 is pushed by the peripheral edge of the unlocking portion 11 and pushed in the direction indicated by the arrow C. When the pressing portion 12B is pressed, the elastic locking piece 12 is elastically deformed, and the locking portion 12A moves in the direction indicated by the arrow D in the enlarged sectional view of FIG. When the locking portion 12A moves in the direction indicated by the arrow D, the locking portion 12A is pushed out of the lock portion 10, and the charged body 1 is smoothly removed from the mounting portion 4.
[0024]
As shown in FIG. 6, when the tip of the pressing portion 12B is inclined, the elastic locking piece 12 can be smoothly elastically deformed when the charged body 1 is tilted. However, the to-be-charged body and the charger of the present invention do not necessarily require the tip surface of the pressing portion of the elastic locking piece to be an inclined surface. Although not shown, it is because the pressing portion can be pushed out by the unlocking portion without using a peripheral surface of the unlocking portion as an inclined surface or without providing an inclined surface.
[0025]
【The invention's effect】
The present invention has an advantage that the member to be charged can be easily and easily detached from the charger. In the state where the body to be charged is mounted on the charger, the charging section can be mounted at a fixed position of the mounting section by hooking the locking portion of the charger on the lock section of the body to be charged. Since the unlocking portion of the body to be charged elastically deforms the elastic locking piece provided with the locking portion, the locked state between the locking portion and the locking portion is released, or is easily released. It is.
[0026]
Furthermore, the to-be-charged body mounted at a fixed position of the mounting portion in this state has a feature that it can be reliably charged while preventing poor contact. This is because the object to be charged can be mounted at an accurately determined position by the lock part of the object to be charged and the locking part of the charger.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a usage state of a charged body and a charger according to an embodiment of the present invention. FIG. 2 is a transverse sectional view of the charged body and a charger shown in FIG. Fig. 4 is a partial cross-sectional front view of the body to be charged. Fig. 4 is a side view of the body to be charged shown in Fig. 1. Fig. 5 is a vertical cross-sectional view of the charger shown in Fig. 1. Fig. 6 Enlarged sectional view showing the state pressed by the part 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 ... Charged object 2 ... Charger 3 ... Case 4 ... Mounting part 5 ... Back surface support part 6 ... Front surface support part 7 ... Electrode terminal 8 ... Charge terminal 9 ... Printed circuit board 10 ... Lock part 11 ... Lock release part 12 ... Elasticity Locking piece 12A ... Locking part 12B ... Pressing part 13 ... Inclined surface

Claims (5)

The case (3) has a mounting portion (4) for detachably mounting the body to be charged (1) on the upper surface of the case (3), and is configured to mount the body to be charged (1) and charge the mounting portion (4). In the object to be charged and the charger,
The charged body (1) is mounted on the mounting portion (4) so as to be tiltable, and has a lock portion (10) and a lock release portion (11) on the side surface, and the mounting portion (4) of the case (3). ) Has an elastic locking piece (12) that is pushed and elastically deformed by the unlocking portion (11) of the body (1) to be tilted,
The elastic locking piece (12) includes a locking portion (12A) locked to the lock portion (10) of the charged body (1) mounted on the mounting portion (4), and a charged body (1) tilted. ) And a pressing portion (12B) to be pushed by the unlocking portion (11).
When the body to be charged (1) is mounted on the mounting portion (4) of the case (3), the locking portion (12A) of the elastic locking piece (12) is locked to the lock portion (10) and charged. When the body (1) is tilted, the unlocking part (11) of the body to be charged (1) pushes the pressing part (12B) to deform the elastic locking piece (12), and the locking part (12A) and the locking part (10) A to-be-charged body and a charger configured such that the locked state is released or is easily released, and the to-be-charged body (1) is removed from the mounting portion (4). The to-be-charged body (1) has a lock part (10) and an unlocking part (11) on both sides, and the lock part (10) is disposed above the unlocking part (11). Charged object and charger to be described. The to-be-charged body and charger according to claim 1, wherein the elastic locking piece (12) is integrally formed with the plastic case (3) of the charger (2) so that the elastic locking piece (12) can be elastically deformed. The to-be-charged body and the charger according to claim 1, wherein the lock portion (10) and the lock release portion (11) are concave portions, and the locking portion (12A) and the pressing portion (12B) are convex portions. The to-be-charged body and charger according to claim 1, wherein the pressing portion (12B) has an inclined surface (13) that is gradually pressed strongly by the unlocking portion (11) when the to-be-charged body (1) is tilted. .

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