JPS5918612Y2 - Charger structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a charger for charging a built-in rechargeable battery in an electronic device (hereinafter simply referred to as an electronic device) such as a portable radio that has a built-in rechargeable battery.

Conventionally, electronic devices such as those mentioned above are often protected with a protective outer cover such as a leather case for convenience of portability and improved impact resistance.When charging the device, the protective outer cover is removed and a charger is installed. Generally, the charging plug is connected to the power supply terminal of the electronic device, etc. by inserting it into the battery pack or by inserting the charging plug through a hole provided in the protective jacket, but both have the drawback that they are cumbersome to handle. 'there were.

Therefore, as shown in FIGS. 1A to 1C, the opening dimension D3 of the charging object insertion port 3 is set so that the charging object 1 such as an electronic device can be inserted and fixed with or without the protective outer cover 2. Slightly larger than the protective outer cover dimension D2 and the insertion opening 3
A charger has been proposed that is equipped with a presser foot 5 that can be freely retracted and retracted by a spring 4 on the inner wall of the battery charger.

According to this, the object to be charged 1 is inserted and fixed regardless of whether the protective outer cover 2 is attached or not, and the charging terminals 6 and 7 at the bottom of the insertion port are inserted and fixed.
and the power supply terminals 8, 8 of the object to be charged 1 can be connected.

Note that 9 and 9 are charging terminals 6 and 7 provided on the protective jacket 2.
This is a through hole.

However, as is clear from the figure, adopting such a configuration has the disadvantage that it not only complicates the structure of the charger and causes an increase in price, but also increases the frequency of failures.

The present invention was devised to eliminate the above-mentioned defects of conventional chargers, and is intended to protect the charging object itself and the inner wall of the charging object insertion opening of electronic devices containing rechargeable batteries. To provide a charger having a step-like structure adapted to two states of being housed in an outer cover and having two sets of vertically extendable charging terminals rotationally symmetrical to each other at the bottom of the insertion opening. With the goal.

Hereinafter, the present invention will be explained in detail with reference to drawings showing embodiments.

FIGS. 2A to 2C are cross-sectional views showing the structure of the charger according to the present invention.

That is, as shown in FIG.
D4) The inner walls 11 and 12 are formed so as to be connected by a stepped portion 13.

Needless to say, the widths D3' and D4 are designed to be slightly larger than the widths D2' and D1' when the protective outer cover of the charged object to be inserted is attached and removed, respectively.

On the other hand, charging terminals 16 and 17 are provided on the bottom surface 14 of the insertion port 10, and are vertically expandable and retractable by a spring 15.
The charging terminals 16 and 17 are constructed so that when they are freely extended, their tips can protrude above the surface of the stairs 13.

The charger of the present invention constructed as described above is used as described below.

FIG. 2B is a sectional view showing a state in which the object to be charged 1' is inserted into the object to be charged insertion port 10 of the charger with its protective jacket 2' attached, and is being charged. Outer cover 2
The object to be charged 1' equipped with
3 and the charging terminals 16 and 17
The terminals pass through holes 9', 9' provided at the bottom of the protective jacket 2' and come into contact with the power supply terminals 8', 8' of the object to be charged 1, whereby charging is performed.

Also, Figure C shows the charged object 1' with the protective outer cover 2' removed.
is a cross-sectional view showing a state in which the charger is inserted into a charger, the object to be charged 1' is fixed to the bottom 14 of the insertion port 10, and the charging terminals 16 and 17 are pushed in by compressing the spring 15. Power supply terminals 8', 8' of the object to be charged
It is in pressure contact with the

Now, in such a charger, the positive and negative charging terminals are determined, so when inserting the object to be charged into the insertion port, it is necessary to pay attention to the insertion direction.

On the other hand, the power supply terminal is not necessarily provided at the center of the bottom of the object to be charged due to the arrangement of the battery included in the object to be charged.

Therefore, in the present invention, as shown in FIG. 3, the charging terminal 16 is
and 17, another set of terminals 16' and 17' are arranged so as to be rotationally symmetrical to the other set of terminals 16 and 17.

In addition, W3' and W4 in the same figure are the widths of the sides adjacent to the D3' and D4 of the charging object insertion opening of the charger of the present invention, respectively, and these dimensions are respectively the widths of the sides adjacent to the charging object insertion opening of the charging object 1'. This corresponds to the adjacent side of the outer jacket dimension D2' and the charged object itself dimension D1'.

Since the present invention is constructed as explained above, it can be charged by simply inserting it into the charging object, such as an electronic device with a built-in rechargeable battery, regardless of whether the protective outer cover is attached or removed. Not only is this possible, but it also eliminates the need to consider the insertion direction of the electronic device to be charged, so it is extremely effective in terms of both usability and manufacturing cost.

[Brief explanation of the drawing]

Figures 1A to C are cross-sectional views showing the structure of the charging object insertion port of a conventional charger and the state in which the charging object is inserted alone or with a protective jacket attached, and Figures 2A to C 3 are cross-sectional views showing the structure of the charging object insertion port of the charger according to the present invention and the state in which the charging object is inserted with the protective outer cover attached or with it removed. FIG. 3 is a perspective view of a charging object insertion port of the device.

Claims (1)

[Scope of utility model registration request] In a charging object insertion port of a charger for charging an electronic device or the like that has a built-in rechargeable battery as a charging object, the charging object has a protective outer cover attached to the inner wall of the insertion port. Charging characterized in that the charging terminal is shaped like a step to adapt to the two states of removing the protective outer cover, and two sets of vertically extendable charging terminals are arranged rotationally symmetrically at the bottom of the insertion opening. Structure of the vessel.