JPH11127231A - Ac charger for mobile telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to use a device in common without being influenced by a shape of a mobile telephone set with regard to an AC charger for the mobile telephone set. SOLUTION: An AC charger for mobile telephone set is composed of a body part 10 and a holder part 12. The body part 10 is a part that can be used in common even when the kind of a mobile telephone set is different and has a charging circuit and a charging terminal. The holder part 12 is used by being mounted on the body part 10 and produced in accordance with its shape for every mobile telephone set in order to fix the mobile telephone set during charge or reception stand-by. Thus, at the time of buying a new mobile telephone set, only the holder part 12 that is produced for the purchased mobile telephone set is purchased and, as it is used by replacing with a holder part already mounted, it is inexpensive to purchase the new one.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AC charger for a mobile telephone, and more particularly, to an AC charger for a mobile telephone which can correspond to a mobile telephone having various external shapes.

In recent years, portable telephones and PHS (Personal
2. Description of the Related Art Mobile phones such as handy phone systems have become widespread, and replacement demand for mobile phones has accounted for about half of all demands, including new purchases.

[0003]

2. Description of the Related Art A mobile telephone is used by mounting a battery as a power source and charging the battery. Therefore, a charger is required for the mobile phone, and the mobile phone is purchased as a pair. The mobile phone can charge the battery by being electrically connected to the charger with the mobile phone placed in the charger. Since a mobile phone has various shapes depending on the model, a charger used as a pair with the mobile phone is also created according to the external shape when the mobile phone is placed for charging.

By the way, the batteries used in mobile telephones have been changed from nickel-cadmium batteries and nickel-hydrogen batteries to lithium-ion batteries.
This is because if the volume and weight are the same, the energy density of the lithium-ion battery can be greatly increased, and by mounting this lithium-ion battery on the mobile phone, the size and weight of the mobile phone can be reduced. This makes it possible to extend the usage time after charging.

[0005]

When a user owns a mobile phone and purchases another mobile phone additionally or purchases a replacement, the charger that is set with the mobile phone is also included in each case. Will buy. However, for those who already have a mobile phone, just because the shape is different, they will buy another charger with the same function, so the model (ie, shape) of the mobile phone will be different. If possible, there is a demand to use only the charger in common.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an AC charger for a mobile telephone which can be used in common regardless of the shape of the mobile telephone. .

[0007]

FIG. 1 is a diagram illustrating the principle of the present invention for achieving the above object. The AC charger for a mobile telephone according to the present invention is divided into a main body 10 comprising a charging circuit and a charging terminal, and a holder 12 for fixing the mobile telephone. The main body unit 10 is a part that can be used in common even if the mobile phone model is different, and thereby it is possible to use a common AC charger.
The holder section 12 is used by being attached to the main body section 10 and fixes the mobile phone during charging or during reception standby. Since the holder section 12 has a function of fixing the mobile telephone, it is created according to the shape of each mobile telephone. As described above, the holder 12 is connected to the main body 1.
Since it is separated from 0, it is only necessary to prepare the holder 12 formed in a shape corresponding to the shape of each mobile telephone, and it is possible to provide an AC charger for mobile telephones corresponding to various mobile telephones. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings, taking as an example a case where the present invention is applied to an AC charger for a portable telephone.

FIG. 1 is an exploded perspective view showing an external configuration of an AC charger for a portable telephone. According to the AC charger shown in FIG. 1, the main body 10 and the holder 12 are provided.
The main body 10 is a part that can be used in common even if the model of the mobile phone is different, and has a built-in basic circuit of the charger. The charger circuit includes, for example, a rectifier circuit, a DC / DC converter, a protection circuit, a control circuit, and the like. On the other hand, the holder section 12 is used by being attached to the main body section 10 and fixes the mobile phone during charging. Since the holder portion 12 has a function of fixing a mobile phone, it is created for each mobile phone according to its shape. Therefore, when the person who owns the mobile phone intends to replace the mobile phone, the main unit 1
Since 0 already exists, only the holder unit 12 created for the purchased mobile phone needs to be purchased. This is because most mobile phones use lithium-ion batteries as power sources for mobile phones, so there is no need for a circuit to determine the type of battery as a charging circuit.
There is a background that almost the same circuit can be used regardless of the model.

Next, the main body 1 constituting this AC charger is described.
The structure of the holder 0 and the holder 12 will be described in detail.
FIG. 2 is a perspective view showing a main body of the AC charger. The main body 10 of the AC charger is provided with a charging terminal block 16 on an upper surface 14 thereof. The charging terminal block 16 is provided with four charging terminals 18 exposed on the upper surface. The charging terminal 18 is a portion that makes electrical contact with a corresponding charging terminal when the mobile phone is placed on the holder portion 12 for charging, and charging of the battery of the mobile phone is performed via the charging terminal 18. Will be

On the upper surface 14 of the main body 10, a plurality of engaging holes 20a to 20h are formed. These engagement holes 20a to 20h are used when the holder 12 is mounted on the main body 10, and as described later, the holder 1
2 is a portion into which the hook provided at the corresponding position is inserted.

Further, on the upper surface 14 of the main body 10, when the holder 12 is mounted on the main body 10, the holder 12
Is provided with a projection 22 for preventing the main body 10 from coming off the main body 10. The protruding portion 22 is projected on a tongue 24 surrounded by an elongated through hole on three sides, and the upper surface of the protruding portion 22 has a taper inclined to the side where the tongue 24 is connected to the upper surface 14. I have.

In the main body 10, the holder 12
The control circuit of the charging circuit is housed below the portion where the battery is mounted, and the protruding portion which is formed to protrude upward adjacent to the portion where the holder portion 12 is mounted has a large part in the charging circuit. The circuit is housed.

FIG. 3 is a perspective view of the holder portion of the AC charger when the holder portion is turned upside down. Inside the holder part 12,
A plurality of hooks 26a to 26h are provided along the periphery. Each of the hooks 26a to 26h extends from the edge of the holder portion 12 and is bent at a predetermined height in a right angle direction, and each tip is directed in the same direction.

The holder 12 is provided with the main body 1.
0 when the charging terminal block 16 of the main body 10 is mounted.
There is provided a fitting hole 28 to be fitted with. Further, when the holder 12 is mounted on the main body 10,
An engagement hole 30 is provided in the holder portion 12 at a position corresponding to the projection 22 on the side.

In the main body 10 and the holder 12 having the above configuration, a case where the holder 12 is mounted on the main body 10 will be described. FIG. 4 is an enlarged detail view of part A of FIG. Holder 12 is attached to main body 10
When attaching to the hooks 26a-2
The side with 6h is down, and each hook 26a-26h
Into the corresponding engagement holes 20 a to 20 h formed in the upper surface 14 of the main body 10. As shown in detail in FIG. 4, the hook 26a and the corresponding engagement hole 20 are provided.
a, the shape of the bottom of the hook 26a and the shape of the engagement hole 20a are substantially trapezoidal as shown in the drawing so that the hook 26a and the engagement hole 20a cannot be inserted if the direction of insertion is wrong. It is formed in the shape of.

The hook 26a is inserted straight into the engagement hole 20a, and the holder 12 is further slid in the direction of the tip bent at a right angle (in the direction of arrow 32). As a result, the holder 12 is mounted on the main body 10. When the holder portion 12 is slid in the direction of arrow 32, the locking holes 30 provided in the holder portion 12
Is moved to the protrusion 22 of. This state will be described with reference to FIG.

FIGS. 5A and 5B are views for explaining a state in which the holder is not detached from the main body. FIG. 5A shows a state immediately before the mounting of the holder is completed, and FIG. This shows a state after the mounting is completed. Here, hook 26a
Is simply inserted straight into the engagement hole 20a,
As shown in (A), the projection 22 is pressed by the inner wall surface near the locking hole 30 on the back side of the holder 12, and the tongue 24 carrying the projection 22 is attached to the main body by the tongue 24. 1
0.

Next, the holder portion 12 is slid in the direction of arrow 32, and as shown in FIG.
When the second locking hole 30 reaches the position of the protrusion 22 of the main body 10, the protrusion 22 is released from being pressed by the inner wall surface on the back side of the holder 12, and is inserted into the locking hole 30. At this time,
The holder 26 is fixed to the main body 10 by the hook 26a sandwiching the edge of the engagement hole 20a. In addition, when the protrusion 22 of the main body 10 is inserted into the locking hole 30, the protrusion 22 acts as a stopper against movement of the holder 12 in the direction opposite to the arrow 32. It does not come off the unit 10 carelessly.

Since the holder portion 12 is not formed in a closed shape like a box, it is generally warped after the formation. However, by providing a plurality of hooks 26a to 26h around the holder portion 12 and fixing the hooks to the main body portion 10 at a plurality of locations simultaneously, the holder portion 12
Of the holder portion 12 due to the warpage can be corrected.

Next, when replacing a mobile phone,
Only the holder that fits the shape of the new mobile phone will be purchased and replaced with the holder that has been used. Next, the replacement of the holder will be described with reference to FIG.

FIGS. 6A and 6B are views for explaining a state in which the holder is detached from the main body. FIG. 6A shows a state in which the stopper of the holder by the projection is released, and FIG.
Indicates a state when the holder is slid.
The holder 12 attached to the main body 10 is
First, as shown by an arrow 34 in (A), the projection 22 is removed through the locking hole 30 of the holder 12.
Press down. As a result, the upper portion of the projection 22 comes below the holder 12, so that the holder 1
The second stopper is released. The depression of the protruding portion 22 can be performed using a daily life item such as a pencil.

Then, with the stopper released, the holder 12 is slid in the direction of arrow 36 shown in FIG. 3B, and after sufficient sliding in the direction of arrow 36, the holder 12 is lifted. Thereby, the holder 12 can be removed from the main body 10.

After the mounted holder 12 is removed, the holder purchased at the time of replacement of the portable telephone may be mounted according to the above-described mounting method. FIG. 7 is a plan view showing another embodiment of the AC charger for a mobile phone, and FIG. 8 is a sectional view taken along the line BB of FIG. In this embodiment, the holder 12a attached to the main body 10 of the AC charger is fixed to fit into a holder fixing hole 38 formed in the base of the charging terminal block 16 of the main body 10. A projection 40 and a resin spring 42 for fixing the holder 12a to the main body 10 with one touch are provided. A hook 44 is formed at the tip of the resin spring 42.
An insertion hole 46 for inserting the hook 44 and a hook 44 are provided at corresponding positions of the main body 10 where the resin spring 42 is located.
Is provided with a locking hole 48 for locking.

Here, when attaching the holder 12a to the main body 10, first, the fixing projections 4 of the holder 12a are mounted.
0 is inserted into the holder fixing hole 38 of the charging terminal block 16 of the main body 10. In this state, the resin spring 42
Is inserted into the insertion hole 46 of the main body 10, and the holder 12 a is pushed toward the main body 10. Then, the hook 44 is locked in the locking hole 48 of the main body 10, and the holder 12 a cannot be separated from the main body 10. As a result, the holder 1 is attached to the main body 10.
The mounting of 2a is completed.

The holder 12a thus mounted
When the resin spring 42 is removed from the main body 10, a force is applied to push the resin spring 42 in the vicinity of the hook 44 in an inward direction.
As a result, the hook 44 is disengaged from the locking hole 48, and in this state, the holder 12 a can be removed from the main body 10 by pulling the holder 12 a away from the main body 10.

[0027]

As described above, according to the present invention, the charger is divided into a main body having a charging circuit and a charging terminal and a holder formed in accordance with the shape of the mobile telephone. For this reason, when a user replaces a mobile phone, it is only necessary to purchase a holder for the mobile phone, and the user can continue to use the previously owned charger without wasting it. And replacement costs can be reduced. The same effect can be obtained by fixing the holder portion 12 to the main body portion 10 by directly screwing it in addition to the method of the projections 22 and the hooks 44 shown in FIGS.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an external configuration of an AC charger for a mobile phone.

FIG. 2 is a perspective view showing a main body of the AC charger.

FIG. 3 is a perspective view of the holder portion of the AC charger when the holder portion is turned upside down.

FIG. 4 is an enlarged detail view of a portion A in FIG. 1;

5A and 5B are diagrams illustrating a state in which the holder is not detached from the main body, wherein FIG. 5A illustrates a state immediately before the completion of the mounting of the holder, and FIG. The latter state is shown.

FIGS. 6A and 6B are diagrams illustrating a state in which the holder is removed from the main body, wherein FIG. 6A illustrates a state in which a stopper of the holder is released by a protrusion, and FIG. FIG.

FIG. 7 is a plan view showing another embodiment of an AC charger for a mobile phone.

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body part 12 Holder part 14 Upper surface 16 Charging terminal block 18 Charging terminal 20a-20h Engagement hole 22 Projection part 24 Tongue part 26a-26h Hook 28 Fitting hole 30 Locking hole

Claims (4)

[Claims] 1. An AC charger for a mobile phone for charging a battery mounted on the mobile phone, comprising: a charging circuit; and a main body having a charging terminal exposed to the outside and electrically connected to a charging terminal of the mobile telephone. And a mobile phone formed in such a shape as to fix the mobile phone during charging or reception standby according to the shape of the mobile phone, and the holder portion being detachable. Charger. 2. The holder has a plurality of hooks provided inside the holder along the periphery thereof, and the main body is drilled at a position on an upper surface corresponding to the hooks, and the hooks are respectively inserted at the same time. The AC charger for a mobile telephone according to claim 1, further comprising a plurality of engagement holes which are sandwiched by being slid in a horizontal direction with respect to the upper surface to correct the warpage or floating of the holder portion. 3. The holder portion has a locking hole formed at a center position in a direction perpendicular to a sliding direction, and the main body portion has a locking hole when the holder portion is mounted. The holder is provided at the corresponding position, fits into the locking hole when the holder slides, and is urged inward through the locking hole when the holder is removed, so that the locking is performed. 3. An AC charger for a mobile phone according to claim 2, wherein said AC charger has a projection coming off from said hole. 4. The holder portion has a resin spring on one side thereof, and the resin spring is locked in a locking hole formed in a corresponding position of the main body portion, whereby the holder portion is connected to the main body portion. 2. The AC charger for a mobile telephone according to claim 1, wherein the AC charger is mounted on a mobile phone.