JPH06243898A - Charger - Google Patents

Abstract

PURPOSE:To drain water droplets entered in a case to outside the case without depositing the water droplets on electronic components except charging terminals by downwardly bending the charging terminals and by providing drip holes in the bottom of the case. CONSTITUTION:The base ends 29a of a pair of charging terminals 29 formed of spring plates are mounted on and soldered to a circuit substrate 25. The terminals 29 are projected at contact parts 29b formed at their tip sides to the outside of the a case 21 from an opening part 22b formed in an upper cover 22. The terminals 29 at portions except the base ends 29a are positioned at the portions except the upper part of the substrate 21 and their midway parts 29c are bent to position lower than the base ends 29a. The space positioning the terminals 29 in the case 21 is partitioned from the space positioning the substrate 25 by means of partition walls 22c, 23c. In addition, drip holes 23f are formed in the lower case 23 at the positions corresponding to the opening part 22b.

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 electronic equipment such as a telephone.

[0002]

2. Description of the Related Art In electronic devices such as telephones, their miniaturization,
Along with the portability, many have a waterproof function as an additional function. A conventional charger used for charging an electronic device having a waterproof function of this type is configured as shown in FIGS. 7 to 10.

The case 1 of this charger is composed of an upper cover 2 and a lower case 3. In the case 1, a circuit board 5 is fixed to a boss 2a of the upper cover 2 with screws 6.
A power jack 7 and other electronic parts (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. The contact portion 9a formed on the tip side of the charging terminal 9 is projected to the outside of the housing 1 through the opening 2b formed in the upper cover 2.

The charging of the electronic device by the charger is performed by setting the electronic device in the recess 1a formed in the upper part 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 the charger with water attached, water droplets 11 spread on the circuit board 5 through the charging terminals 9 or as shown in FIG. 9, or from the opening 2b to the casing. Water droplet 1 that has penetrated into 1
1 may collect on the side of the lower case 3 and water droplets may adhere to electronic parts such as the power jack 7, and the adhesion of the water droplets causes a short circuit between the electronic parts and further corrosion of the electronic parts.

[0005]

As described above, in the above charger, water droplets spread through the charging terminal and spread on the circuit board,
Alternatively, water droplets that have penetrated into the housing through the openings are collected at the bottom of the housing, and the water droplets adhere to electronic components provided on the circuit board, causing various problems such as a short circuit.

The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to provide a charger capable of discharging water droplets, which have penetrated into the housing, to the outside of the housing without adhering to the electronic parts other than the charging terminals. And

[0007]

According to a first aspect of the present invention, a circuit board is housed in a housing, and a tip end side of a charging terminal having a base end side fixed to the circuit board is exposed outside through an opening formed in the housing. In the exposed charger, the charging terminal is bent such that a middle portion thereof is arranged at a position other than above the circuit board and is located below the base end side, and the housing is provided. The bottom of the is provided with a hole for draining water.

In the second aspect of the invention, the charging is such that the circuit board is housed in the housing and the tip end side of the charging terminal having the base end side fixed to the circuit board is exposed to the outside through the opening formed in the housing. In the container, the charging terminal is bent such that the middle part thereof is arranged at a position 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 for partitioning the arranged space and the space where the charging terminal is arranged is provided, and a hole for draining water is provided at the bottom of the housing.

[0009]

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

According to the second aspect of the present invention, since the partition wall for partitioning the space in which the circuit board is arranged from the space in which the charging terminal is arranged is provided for the circuit board of the water drop that has penetrated into the space for the charging terminal. Entry into the space is blocked by the partition wall.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below 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 view taken on the line.

The charger according to the present invention is a charger for a telephone having a waterproof function, and its casing 21 is composed of an upper cover 22 and a lower case 23. In addition, a recess 21 for setting a telephone (not shown) is provided on the top of the housing 21.
a is formed and the front side is an LE that lights up during charging
D24 is provided.

As shown in FIG. 1, a circuit board 25 is fixed to the boss 22a of the upper cover 22 in the housing 21 by screws 26. A power jack 27 and other electronic components (not shown) are attached to the circuit board 25. In addition, 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
The contact portion 29b formed on the tip side of the reference numeral 9 projects from the opening 22b formed in the upper cover 22 to the outside of the housing 21. In addition, as shown in FIG. 4, the charging terminal 29 is arranged such that the portion other than the base end 29a side is arranged in a portion other than the upper portion of the circuit board 25, and the midway 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. As shown in FIGS. 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 peripheral edge of the circuit board 25. Therefore, the housing 21
Circuit board 25 and the space in which the charging terminals 29 are arranged
The space in which is arranged is partitioned by partition walls 22e and 23e. Further, as shown in FIGS. 1, 5, and 6, the lower case 23 has a hole 23f for draining water formed at a position corresponding to the opening 22b.

With the above-mentioned structure, even if the water droplets that have adhered to the telephone set adhere to the contact points 29b of the charging terminal 29, the water droplets 1 that propagate through the charging terminal 29
The water droplets 11 do not adhere to the circuit board 25 because the water 1 is collected in the middle portion 29c or drops from the middle portion 29c downward.

Further, since the space for the circuit board 25 and the space for the charging terminal 29 are partitioned by the partition walls 22e, 23e, water droplets that have penetrated into the housing 21 through the opening 22b are on the circuit board 25 side. Never infiltrate
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 droplets that have entered the housing 21 will not collect in the housing 21.

[0018]

As described above, in the first aspect of the present invention, the water droplets transmitted through the charging terminal are collected in the middle portion of the charging terminal, fall to the bottom of the casing at this middle portion, and are discharged from the drainage hole. Therefore, it is possible to prevent water droplets from propagating through the charging terminal and adhering to the circuit board.

Further, in the second invention, since the partition wall is further provided, the partition wall prevents water droplets that have entered the space where the charging terminal is arranged from entering the space where the circuit board is arranged. it can.

[Brief description of drawings]

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

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

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.

9 is a cross-sectional view taken along the line DD of FIG.

10 is a cross-sectional view taken along the line EE of FIG.

[Explanation of symbols]

 21 housing 22b opening 22e partition wall 23e partition wall 23f hole for draining water 25 circuit board 29 charging terminal 29a base end 29b tip 29c middle part

Claims (2)

[Claims] 1. A charger in which a circuit board is housed in a housing, and a tip end side of a charging terminal whose base end side is fixed to the circuit board is exposed to the outside through an opening formed in the housing. The charging terminal is bent such that the middle part thereof is arranged at a position other than above the circuit board and is positioned below the base end side, and a hole for draining water is provided at the bottom of the housing. A charger that is provided. 2. A charger in which a circuit board is housed in a housing, and a tip end side of a charging terminal having a base end side fixed to the circuit board is exposed to the outside through an opening formed in the housing. The charging terminal is bent such that the middle part thereof is arranged at a place other than above the circuit board and is positioned below the base end side, and the space where the circuit board is arranged in the housing. A charger is provided, which is provided with a partition wall that separates the charging terminal from a space in which the charging terminal is arranged, and a hole for draining water is provided at the bottom of the housing.