JP3284162B2 - Electrical equipment 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 charging device for electric equipment, and more particularly to a charging device for a cordless telephone handset.

[0002]

2. Description of the Related Art As an example of a conventional electric equipment charging apparatus,
A cordless telephone cordless handset charging device will be described, and its structure will be described with reference to FIGS. The handset 1 of the cordless telephone forms an outer shell by combining a pair of outer cases 2 and 3 made of, for example, a synthetic resin, and a key input unit 4 having a numeric keypad and various function keys is provided at a central portion on the front surface thereof. A receiving unit 5 is provided above the key input unit 4.
, Respectively. or,
Slave device 1 has a pair of charging terminals 7 disposed on the bottom surface thereof, and has a built-in rechargeable battery 8 in the vicinity thereof. The secondary battery 8 is housed in a battery housing 9 formed at the bottom of the outer case 3, and the opening of the battery housing 9 is closed by a removable back cover 10.

The charger 11 forms an outer shell by connecting a pair of outer cases 12 and 13 made of, for example, a synthetic resin, and has a mounting surface 14 on the upper surface for mounting the slave 1 in a down state. Is formed, and a rising wall 15 is formed on one side of the mounting surface 14. The charger 11 has a pair of conductive leaf springs 16 between the outer cases 12 and 13.
And a power supply terminal 17 attached to a free end of each leaf spring 16 projects outward from a through hole 18 of the rising wall 15.

[0004] When the child device 1 is mounted on the mounting surface 14 of the charger 11, the external case 2 of the child device 1 is
The power supply terminal 17 receives the weight of the slave unit 1 and retreats against the leaf spring 16 to reduce the urging force of the leaf spring 16 when the slave unit 1 is placed in a predetermined state. Receiving charging terminal 7
The secondary battery 8 is charged from a commercial power supply via an AC adapter (not shown), a power supply terminal 17 and a charging terminal 7.

[0005]

By the way, in the conventional apparatus, each time the slave unit 1 is mounted on the charger 11, the outer case 2
And the power supply terminal 17 are rubbed against each other, and the rubbing of both is caused by the heavy weight of the secondary battery 8.
Is built in the bottom of the slave unit 1 and the biasing force of the leaf spring 16 is applied to the power supply terminal 17, and the like is performed with a relatively large force. As a result, the mounting and dismounting of the charger is frequently repeated, and in a cordless telephone handset in which the outer case is formed of synthetic resin, the bottom corner of the outer case 2 is cut by the power supply terminal made of metal. And the powder adheres to the power supply terminal 17 and the charging terminal 7,
Charging of the secondary battery 8 cannot be performed in a favorable state,
That could lead to the situation.

However, the present invention provides an electric equipment charging apparatus that can prevent a friction between an external case and a power supply terminal when a slave unit is mounted and can always perform a charging operation in a good state.

[0007]

According to a first aspect of the present invention, there is provided an electric device charging apparatus, wherein a device mounting surface is formed on an upper surface, a rising wall is provided on at least one side of the device mounting surface, and the power supply terminal is connected to the rising portion. A charger provided so as to protrude from the wall above the device mounting surface, and an electric device with a built-in secondary battery having a charging terminal electrically connected to the power supply terminal when mounted on the charger. A charging rib for charging the secondary battery via a charger, wherein a rising rib of the charger is provided with a guide rib at a position above the power supply terminal, and a top portion of the guide rib is connected to the power supply terminal.
And the outer edges of the guide ribs are inclined toward the upper and lower ends , and the inclination toward the lower end is made larger than the inclination toward the upper end. A configuration is adopted in which a concave portion into which the guide rib fits when placed is formed.

[0008]

According to a second aspect of the present invention, in addition to the configuration of the first aspect , in addition to the configuration of the first aspect , the device mounting surface of the charger is inclined downward toward the rising wall while the secondary battery is mounted. The electric device is built in a position near the charging terminal.

[0010]

According to the electric equipment charging apparatus of the first aspect, when the electric equipment is placed on the charger, it first slides down along the small slope of the outer edge of the guide rib and is then placed on the predetermined position . Until the mounting is completed, the power supply terminal does not rub against the power supply terminal, and is securely mounted on the device mounting surface of the charger. Therefore, even when the outer case is made of a synthetic resin, shavings are not generated, and a favorable charging operation is always performed.

[0011]

According to the second aspect of the present invention, after the electric device slides down along the guide ribs, it rises along the device mounting surface due to the weight of the secondary battery and easily slides toward the wall. The power supply terminal and the charging terminal come into contact with each other, and the contact state can be stably maintained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. 1 to 4,
5 to 8 are denoted by the same reference numerals.

The outer casings 12 and 13 of the charger 11 are both made of molded synthetic resin.
A mounting surface (device mounting surface) 14 and a rising wall 15. The mounting surface 14 is generally downwardly inclined toward the rising wall 15, while the rising wall 15 is slightly outwardly inclined upward. Also, the left and right sides of the rising wall 15 extend along the left and right sides of the mounting surface 14,
This extension functions as guide portions 15a, 15a.

The rising wall 15 of the charger 11 has a narrow guide rib 1 at an intermediate position between the pair of power supply terminals 17 and at a position above the power supply terminal 17.
9 The guide rib 19 is formed integrally with the outer case 12 using a synthetic resin. The upper edge of the guide rib 19 is inclined downward toward the tip, and the lower edge is inclined upward toward the tip. Further, it is desirable that the guide rib 19 be protruded at least to a perpendicular position passing through the tip of the power supply terminal 17.

On the other hand, the outer cases 2 and 3 of the slave unit (electric device) 1 are both made of synthetic resin,
Has a slit-shaped recess 2 so as to be located on the bottom surface of the slave unit 1.
0 is integrally molded. Thus, the guide rib 19 is fitted into the recess 20 when the slave 1 is placed on the charger 11.

In the above configuration, the slave 1 is connected to the charger 11
When placed on the upper side, the slave unit 1 is mounted with the bottom corner of the outer case 2 riding on the guide rib 19 as shown by a broken line in FIGS. When the sheet reaches the surface 14 and then shifts in the direction of the rising wall 15 along the inclination of the mounting surface 14, FIG.
As shown by a solid line in FIG.
The charging terminal 7 comes into contact with the power supply terminal 17 while the secondary battery 8 is charged in this state. Note that the fitting between the guide rib 19 and the concave portion 20 is as follows.
Since the guide portions 15a, 15a function with respect to the child device 1, the operation is reliably and easily performed.

In this state, due to the weight of the secondary battery 8, a force acts on the slave unit 1 to rise along the inclination of the mounting surface 14 and slide in the direction of the wall 15.
The contact between the charging terminal 7 and the power supply terminal 17 is maintained in a stable state due to the urging force of the leaf spring 16 acting on.

When the handset 1 is picked up from the charger 11, if the handset 1 side of the handset 1 is lifted so as to float first, the lower end of the guide rib 19 is inclined, and the It can be done without getting caught.

Although the above embodiment has been described with reference to a cordless telephone cordless handset charging device, the present invention is not limited to a cordless telephone, but may be applied to any electric equipment that is frequently loaded and unloaded from a charger. To obtain favorable results.

[0021]

As described above, according to the first aspect of the present invention, when the electric device is placed on the charger, it first slides down along the portion of the outer edge of the guide rib having a small inclination, and then the predetermined position. The power supply terminal is not rubbed with the power supply terminal until the mounting is completed, and the outer case of the electric device does not rub against the power supply terminal and is not scraped off. Therefore, it is possible to avoid a situation in which the shaved powder adheres to the power supply terminal and the charging terminal and adversely affects the charging operation, and the secondary battery can always be charged in a good state.

[0022]

Further, according to the electric equipment charging apparatus of the second aspect , the following effects are exerted in addition to the effects of the invention of the first aspect . That is, the power supply terminal and the charging terminal can be stably held in contact with each other by effectively utilizing the weight of the secondary battery.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view illustrating a cordless telephone charging device according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG. 1;

3 (a) is a front view, FIG. 3 (b) is a side view, FIG. 3 (c) is a schematic side sectional view, and FIG. 3 (d) is a bottom view.

4A and 4B show the charger, wherein FIG. 4A is a plan view, FIG. 4B is a side view, and FIG.

FIG. 5 is a schematic sectional view showing a conventional cordless telephone cordless handset charging device.

FIG. 6 is a partially enlarged view of FIG. 5;

7 (a) is a front view, FIG. 7 (b) is a side view, FIG. 7 (c) is a schematic side sectional view, and FIG. 7 (d) is a bottom view.

8A and 8B show the charger, wherein FIG. 8A is a plan view, FIG. 8B is a side view, and FIG.

[Explanation of symbols]

 Reference Signs List 1 slave unit (electric device) 2, 3 outer case 7 charging terminal 8 secondary battery 11 charger 12, 13 outer case 14 mounting surface (device mounting surface) 15 rising wall 17 power supply terminal 19 guide rib 20 concave portion

Continuation of the front page (58) Fields investigated (Int.Cl. ⁷ , DB name) H02J 7/00 301 H04M 1/02-1/03 H01M 10/42-10/48 H01R 4/48 H01R 9/00

Claims (2)

(57) [Claims] 1. A charging device having a device mounting surface formed on an upper surface, a rising wall on at least one side of the device mounting surface, and a power supply terminal protruding above the device mounting surface from the rising wall. Device, and an electric device with a built-in secondary battery having a charging terminal electrically connected to the power supply terminal when placed on the charger, charging the secondary battery via the charger In the operation, a guide rib protrudes from a rising wall of the charger at a position above the power supply terminal, and a top of the guide rib is
The power supply terminal is higher than the top, and the outer edges of the guide ribs are inclined toward both upper and lower ends , and the inclination toward the lower end is increased from the inclination toward the upper end. An electric device charging apparatus, wherein a concave portion is formed in which the guide rib fits when placed in a predetermined state. 2. The device according to claim 1, wherein the device mounting surface of the charger is inclined downward toward the rising wall, and the secondary battery is built in a position near a charging terminal of the electric device. Electrical equipment charger.