JP3329870B2 - Charger - Google Patents

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 an electronic device such as a telephone.

[0002]

2. Description of the Related Art In electronic devices such as telephones, miniaturization and
Along with portability, many of them have a waterproof function as an additional function. A conventional charger used to charge this kind of electronic device having a waterproof function has been configured as shown in FIGS.

[0003] The housing 1 of this charger is composed of an upper cover 2 and a lower case 3, and a circuit board 5 is fixed to the boss 2 a of the upper cover 2 by screws 6 in the housing 1.
A power jack 7 and other electronic components (not shown) are attached to the circuit board 5. The base ends of the pair of charging terminals 9 are attached to the circuit board 5 by caulking and soldered. A contact portion 9 a formed on the tip end side of the charging terminal 9 is projected outside the housing 1 from an opening 2 b formed in the upper cover 2.

[0004] The charging of the electronic device by the charger is performed by setting the electronic device in a concave portion 1a formed in the upper portion of the charger housing 1 and bringing the terminal of the electronic device into contact with the charging terminal 9. When an electronic device having a waterproof function is set in a charger with water adhered thereto, a water droplet 11 spreads on the circuit board 5 through the charging terminal 9 as shown in FIG. Water drop 1 that has entered 1
1 may accumulate on the lower case 3 side, and water droplets may adhere to electronic components such as the power jack 7, and the adhesion of the water droplets may cause a short circuit between the electronic components and further cause corrosion of the electronic components.

[0005]

As described above, in the above charger, water droplets spread on the circuit board through the charging terminal,
Alternatively, water droplets that have entered the housing from the openings accumulate at the bottom of the housing, and these water droplets adhere to electronic components provided on the circuit board, causing various problems such as short circuits.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional disadvantages, and an object of the present invention is to provide a charger capable of discharging water droplets entering a housing without adhering to electronic components other than a charging terminal to the outside of the housing. And

[0007]

According to a first aspect of the present invention, a circuit board is housed in a housing, and a distal end of a charging terminal having a base end fixed to the circuit board is connected to an outside through an opening formed in the housing. In the exposed charger, the charging terminal is bent so that a halfway portion thereof is located below the base end side , and a hole for draining water is provided at the bottom of the housing. It has a configuration.

[0008] In the second aspect of the present invention, there is provided a charging device in which a circuit board is accommodated in a housing, and a distal end of a charging terminal having a base end fixed to the circuit board is exposed to the outside through an opening formed in the housing. In the case, the charging terminal is bent so that an intermediate portion thereof is disposed at a place other than above the circuit board and is positioned below the base end side, and the circuit board is provided in the housing. A partition wall is provided for partitioning the space in which the charging terminals are disposed from the disposed space, and a hole for draining water is provided at the bottom of the housing.

[0009]

According to the first aspect of the present invention, water droplets transmitted through the charging terminal reach the middle of the charging terminal, fall to the bottom of the housing, and are discharged from the drain hole.

In the second aspect of the present invention, since the partition wall for separating the space in which the circuit board is disposed and the space in which the charging terminal is disposed is provided, the circuit board for water droplets penetrating into the space for the charging terminal is provided. Infiltration into the space is prevented by the partition wall.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. 2 is a perspective view of the charger, FIG. 3 is a plan view of the charger, FIG. 1 is a sectional view taken along line AA of FIG. 3, FIG. 4 is a sectional view taken along line BB of FIG. 1, and FIG. It is CC sectional drawing.

The charger according to the present invention is a charger for a telephone having a waterproof function, and its housing 21 is composed of an upper cover 22 and a lower case 23. Further, a recess 21 for setting a telephone (not shown) is provided in an upper portion of the housing 21.
a is formed, and the front side is lit when charging.
D24 is provided.

As shown in FIG. 1, a circuit board 25 is fixed to the boss 22a of the upper cover 22 by screws 26 in the housing 21. A power jack 27 and other electronic components (not shown) are attached to the circuit board 25. Also, a pair of charging terminals 2 formed of a spring plate material
The base end 29a side of 9 is attached to the circuit board 25 by caulking and soldered. This charging terminal 2
In 9, a contact portion 29 b formed on the distal end side is made to protrude to the outside of the housing 21 from an opening 22 b formed in the upper cover 22. Further, as shown in FIG. 4, the charging terminal 29 is arranged such that a portion other than the base end 29a is disposed in a portion other than above the circuit board 25, and that the halfway portion 29c is located below the base end 29a. It is bent.

The upper cover 22 has a partition wall 22e.
The lower cover 23 is provided with a partition wall 23e. 4 and 5, the partition wall 22e is arranged so as to surround the charging terminal 29, and the partition wall 23e is arranged along the periphery of the circuit board 25. Therefore, the housing 21
And the circuit board 25 in which the charging terminals 29 are arranged
Is in a state of being partitioned by the partition walls 22e and 23e. As shown in FIGS. 1, 5 and 6, the lower case 23 is provided with a drainage hole 23f at a position corresponding to the opening 22b.

With the above-described configuration, even if water droplets adhering to the telephone set adhere to the contact portion 29b of the charging terminal 29, the water droplets 1 transmitted through the charging terminal 29 are not affected.
Since 1 accumulates in the halfway portion 29c or falls downward from the halfway portion 29c, the water droplet 11 does not adhere to the circuit board 25.

Further, since the space for the circuit board 25 and the space for the charging terminal 29 are separated by the partition walls 22e and 23e, the water droplets entering the housing 21 from the opening 22b are removed from the space on the circuit board 25 side. Without invading the
Therefore, water droplets do not adhere to the circuit board 25 or the electronic components provided on the circuit board 25.

Further, since a hole 23f for draining water is provided at the bottom of the housing 21, water drops that have entered the housing 21 do not accumulate in the housing 21.

[0018]

As described above, in the first aspect of the present invention, water droplets propagating through the charging terminal accumulate at an intermediate portion of the charging terminal, fall to the bottom of the casing at the intermediate portion, and are discharged from the drain hole. Therefore, it is possible to prevent water droplets from traveling along the charging terminal and adhering to the circuit board.

According to the second aspect of the present invention, since the partition wall is further provided, the partition wall prevents water droplets entering the space where the charging terminal is arranged from entering the space where the circuit board is arranged. it can.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a charger according to one embodiment of the present invention, and is a cross-sectional view taken along line AA of FIG.

FIG. 2 is a perspective view of the charger.

FIG. 3 is a plan view of the charger.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a sectional view taken along line CC of FIG. 1;

FIG. 6 is a rear view of the charger.

FIG. 7 is a perspective view of a conventional charger.

FIG. 8 is a plan view of the charger.

FIG. 9 is a sectional view taken along line DD of FIG. 8;

FIG. 10 is a sectional view taken along line EE of FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Housing 22b Opening 22e Partition wall 23e Partition wall 23f Hole for draining 25 Circuit board 29 Charging terminal 29a Base end 29b Tip 29c Halfway

Claims (2)

(57) [Claims] 1. A charger in which a circuit board is housed in a housing and a distal end of a charging terminal whose base end is fixed to the circuit board is exposed to the outside through an opening formed in the housing. The middle part of the charging terminal is closer to the base end.
Ri has been bent so as to be positioned downward, charger to the bottom of the housing, characterized in that it is provided holes for drainage. 2. A charger in which a circuit board is housed in a housing and a distal end of a charging terminal having a base end fixed to the circuit board is exposed to the outside through an opening formed in the housing. The charging terminal is bent so that an intermediate portion thereof is disposed at a position other than above the circuit board and is positioned below the base end side, and a space in the housing where the circuit board is disposed And a space in which the charging terminal is disposed, and a wall for draining water is provided in a bottom portion of the housing.