JPH11224655A - Battery charger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fit a pack battery simply and surely with a simple structure by providing a battery fitting section constituted of a nearly rectangular bottom face and sidewalls extended upward from three sides and a coupling pawl rotatably protruded from the other side of the bottom face and coupled with the pack battery. SOLUTION: A coupling pawl 4 provided on one side other than three sidewalls of a battery fitting section 3 on the upper face of a main body case 1 is made of a resin component integrally molded with a disk-like base section having a rotating fulcrum and a circular arc-shaped coupling section, a pawl section, and a moderation elastic section properly kept in contact with a moderation rib 6. After the coupling pawl 4 is set to the storage state by the action of an operation knob 5, the battery contact point sections of a nearly rectangular pack battery 2 are faced to a pair of charging contact points exposed from the sidewall opposite to the coupling pawl 4, and the pack battery 2 is fitted into the battery fitting section 3 to press a battery press section 8. The pack battery 2 is fixed by the coupling pawl 4 protruded by the action of the operation knob 5 and coupled with the circular arc-shaped coupling groove of the pack battery 2 and three sidewalls, and many coupling sections are not required.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charger for charging a battery pack.

[0002]

2. Description of the Related Art A battery pack widely used as a power source for portable electronic devices such as a video camera and a notebook computer is removed from the device after the discharge is completed, and is mounted on a charger and charged. Therefore, pack batteries and chargers
An engaging portion is provided so that these can be detached.

In the structure disclosed in Japanese Patent Publication No. 5-182020, locking pieces are provided at both ends of a battery pack, and a pair of locking pieces of the battery pack are mounted on a charger mounting surface. Are provided. To attach the battery pack to the charger, the locking piece of the battery pack is engaged with the locking member of the charger, and the battery pack is slid.

[0004]

In the above structure, a pair of locking portions must be formed on the charger and the battery pack, which complicates the structure. Further, in the case of a battery pack, the shape becomes large because a pair of locking pieces are provided.

SUMMARY OF THE INVENTION The present invention provides a battery charger having a simple structure and capable of easily and securely mounting a battery pack.

[0006]

According to the present invention, there is provided a charger for charging a battery pack mounted thereon, comprising a substantially rectangular bottom surface and three side walls extending above three sides of the bottom surface. A battery mounting portion, and an engaging claw that protrudes and retracts from the remaining one side of the bottom surface and that engages with the battery pack are provided.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, in which 1 is a main body case of a charger, 2 is a battery pack which is attached to and charged in the main body case, and has a substantially rectangular main body. Has a shape in which the battery contact portion protrudes from one end. The other end is provided with an arc-shaped engagement groove 2a. Reference numeral 3 denotes a battery mounting portion disposed on the upper surface of the main body case 1 and includes a rectangular bottom surface and three side walls extending above three sides of the bottom surface.

[0010] Reference numeral 4 denotes a main body case which is rotatably protruded and retracted from the remaining one side of the battery mounting portion 3 and engages with the battery pack 2. An operation knob 6 attached to the engagement claw 4 with 1 interposed therebetween is a moderation rib formed on the inner surface of the main body case 1 near the engagement claw 4.

The engaging claw 4 is formed of a resin molded part in which a claw 4b and a moderating elastic portion 4c are integrally formed on a disk-shaped base 4a having a pivot point. The claw portion 4b is formed so as to have an arcuate engagement portion by partially cutting out a fan-shaped portion integrally formed with the base portion 4a in the thickness direction so as to maintain its strength. Also, the elastic part 4
c appropriately abuts the moderation rib 6, and provides the moderation of the engagement claw 4 at the position where the claw portion 4b protrudes and the stored position.

Further, reference numeral 7 denotes a pair of charging contacts which are exposed in the battery mounting portion 3 from the side wall facing the engaging claw 4, and reference numeral 8 denotes a battery pressing portion which protrudes into the battery mounting portion 3 from above the side wall.

In this configuration, when the battery pack 2 is mounted on the battery mounting portion 3, the operating knob 5 is operated to keep the engaging claw 4 in the housed state. In this state, the battery contacts protruding from the substantially rectangular main body of the battery pack 2 are connected to the charging contacts 7.
The battery pack 2 is mounted in the battery mounting section 3 so that the battery pressing section 8 further presses the battery contact section.
Then, the operating knob 5 is operated to make the engaging claw 4 protrude.
The protruding engagement claws 4 engage with the engagement grooves 2 a of the battery pack 2. As a result, the battery pack 2 is connected to the battery
The two side walls and the engagement claws 4 securely mount and fix the battery at a predetermined position in the battery mounting section 3.

[0012]

According to the present invention, there is provided a battery charger for mounting and charging a battery pack, the battery mounting portion comprising a substantially rectangular bottom surface and three side walls extending above three sides of the bottom surface. , Rotatably protrudes and emerges from the remaining one side of the bottom surface,
Since it has an engaging claw that engages with the battery pack,
With a simple configuration, the battery pack can be easily and reliably mounted.

Further, since it is not necessary to form many engaging portions on the battery pack, the size of the battery pack can be suppressed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view showing one embodiment of the present invention.

FIG. 3 is a partial sectional view of a side surface showing one embodiment of the present invention.

FIG. 4 is a partial front sectional view showing one embodiment of the present invention.

FIG. 5 is a plan view showing a main part of one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 2 Pack battery 3 Battery mounting part 4 Engagement claw 5 Operation knob 6 Moderation rib

Claims (1)

[Claims] 1. A battery charger for mounting and charging a battery pack, comprising: a battery mounting portion including a substantially rectangular bottom surface and three side walls extending above three sides of the bottom surface; A charging claw that is rotatably protruded and retracted from the remaining one side and engages with the battery pack.