JP2001095260A - Ac adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an AC adapter, in which a DC output plug and DC output cord are arranged and stored easily. SOLUTION: An opening 11c is formed on one side surface of the housing 11 of a body 10, so that an output plug 13 on the front end of an output code 14 is insertedly retained thereinto, peripheries of both upper and lower surfaces, serving as jaws 11b, protrude from a side surface so as not to deviate therefrom, even if the output cord 14 is wound around the side surface. Since a surface 11f having the opening 11c is withdrawn from the side surface 11a, the retained output plug 13 can be arranged without extensively protruding from an outer shape. If a power source plug 12 is formed into a folding form to be storable into a slit 11d, a more compact storage condition can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply, and more particularly, to an AC adapter with an improved output cord and plug storage state.

[0002]

2. Description of the Related Art FIG. 3 is an external view of a conventional general AC adapter. Such an AC adapter is provided with a power plug 1 to be inserted into an outlet of a commercial AC power source, protruding from a main body 2 having a built-in electric circuit, while an output cord 3 is pulled out from the main body 1 and an output plug 4 is provided at a tip thereof. It has a structure in which a DC output of a predetermined voltage can be obtained from the output plug 4 via the output cord 3 by plugging the power plug 1 into an outlet.

[0003]

SUMMARY OF THE INVENTION Such a conventional AC
Adapters are widely used, but with the recent spread of electronic devices, various types of AC adapters are required for each device due to differences in DC output voltage, rated current, or output plug polarity. Will be kept organized. At this time, since the output plug is usually attached to the tip of the output cord, which is relatively long, the output plug may be broken by being stepped on with a foot or being placed under another article. In addition, foreign matter or dust may adhere to the device, resulting in poor electrical contact during use.

Also, the output codes are set relatively long in consideration of the convenience of use, so that when not in use, they must be folded and tied up each time to avoid the necessity of being properly disposed of. It was difficult to store.

The present invention has been made to solve the problem of the AC adapter and to store the output plug in a protected state, and to store the output code in an organized state.

[0006]

SUMMARY OF THE INVENTION According to the present invention, an object of the present invention is to provide a main body having a housing containing a circuit for converting a commercial AC power supply into a required rated voltage and a DC current, and a housing for the main body. A power plug inserted directly into an AC power outlet; an output cord directly drawn out of the housing of the main body; and an output plug at a tip of the power cord. A hole for inserting and holding the output plug is provided on one surface of the housing. The problem is solved by providing the unit.

Further, according to the present invention, the above problem is solved in the above-mentioned item, in that the periphery of the opening of the hole is retracted from the surface of the housing provided with the hole, and the output plug is inserted and held when the output plug is inserted and held. The problem is solved by preventing the end near the output cord from largely protruding from the outer shape.

Further, according to the present invention, the above-mentioned problem is caused in the preceding and following paragraphs, in which the upper and lower opposing surfaces of the housing are each provided with a peripheral edge more than a side wall formed between the two surfaces. This problem can be solved by providing a flange-shaped portion protruding outward, and winding and holding the output cord around a side wall between the flange-shaped portions.

Further, according to the present invention, the above-mentioned object is achieved by solving the problems described in the preceding paragraphs, in which the power supply poles can be folded and stored in two slits provided on the housing surface when not in use. The hole for holding the output plug is located in the middle of the two slits, the axial direction of the hole is provided in parallel with the slit direction, and the slit is opened upward from the inner wall. The problem can be solved by providing elasticity to the peripheral wall of the hole in combination with the slit so as to securely hold the output plug when the output plug is inserted.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an AC adapter housing is provided on one surface thereof with a cylindrical hole through which an output plug (pin plug) at the tip of a DC output cord can be inserted and held. The position where the hole is provided is not particularly limited, but it is desirable that the periphery of the opening of the hole is slightly retracted from the surface of the housing. In this way, when the output plug is inserted and held, the ends of the output plug close to the output cord can be grouped together without protruding from the outer shape of the entire AC adapter.

A flange is formed on each of the upper and lower opposing surfaces of the housing so as to protrude outward from a side wall formed between the upper and lower surfaces. The collar may be a continuous flange or an intermittent collar. In any case, when the output cord is wound and held on the side wall between the two flange-shaped portions, it is possible to prevent the collapse of the output cord and to obtain an organized storage state.

In the case where the power plug is configured to be rotatable when both poles thereof are not used so as to be folded and housed in two slits provided on the housing surface, a hole for holding the output plug is formed by the two slits. It is desirable to be located at the middle, and to provide the hole axis direction parallel to the slit direction. Then, a slit is opened upward from the inner wall side surface of the cylindrical hole. With this configuration, the two slits for storing the power plug are present on both sides of the slit of the hole for holding the output plug, and elasticity is given to the hole peripheral wall, so that the output plug can be inserted at the time of insertion. Is ensured.

[0013]

1 is an external perspective view of the main body of an AC adapter according to the present invention. Reference numeral 10 denotes a main body, 11 denotes a substantially rectangular housing constituting an outer shell of the main body 1, and 12 denotes a power plug (AC plug) inserted into an outlet of a commercial power supply. A input from the power plug 12 is inside the housing 11.
A circuit for converting the C input into DC having a predetermined voltage is stored.
Although the structure is divided, the circuit and the divided structure are well-known technologies, and the description is omitted.

An output cord, which will be described later, can be wound around the four side surfaces 11a of the housing 11. For this purpose, the upper and lower surfaces of the housing 11 are slightly protruded in four directions to form a flange portion 11b so that the output cord wound around the side surface 11a does not deviate. The flange 11b may be a continuous flange as shown in FIG. 1 or an intermittent flange.

Reference numeral 11d denotes two slits formed on the upper surface of the housing 11 and on the surface provided with the power plug 12 projecting therefrom.
It can be folded and stored in 1d.

Reference numeral 11c denotes a cylindrical hole formed on one of the four side surfaces of the housing 11 on the short side, and has a shape and size capable of accommodating an output plug to be described later.
The surface 11f of the housing 11 where the opening 1c is opened is set back from the housing side surface 11a by a dimension L in FIG. The hole 11c is provided with the two slits 1 as shown in FIG.
1d, and the axial direction of the hole 11c is
It is provided in parallel with the longitudinal direction of 1d. Then, a slit 11e is opened upward from the side surface of the cylindrical inner wall. Therefore, as shown in FIG. 1, two slits 11d, an intermediate slit 11e, and a total of three slits are formed in parallel, and the wall surfaces on both sides of the intermediate slit 11e,
Since a part of the side wall of the hole 11c becomes slightly thin, the hole 1
If the inner diameter of 1c is set so as to be slightly tighter than the diameter of the output plug, the elasticity of the wall surface allows the output plug to be reliably held when the output plug is inserted.

FIG. 2 shows a stored state of the AC adapter of the present invention. Reference numeral 13 denotes an output plug (pin plug) connected to the end of an output cord 14 drawn out of the housing 11 of the main body 10. When the output plug 13 is stored without using an AC adapter, the output cord 14 is connected to the housing as shown in FIG. 11
And the output plug 13 remaining at the end of the winding is inserted into the hole 11c on the side surface of the housing 11 in the direction of arrow A. The power plug 12 is folded and stored by rotating in the direction of arrow B.

The shape and size of the hole 11c is set to a size and shape suitable for inserting and holding the output plug 13 as described above.
Since the surface 11f is retracted by the dimension L in FIG. 1, it can be stored without protruding so much from the entire outer shape. In addition, since two slits 11d are present on both sides of the slit 11e of the hole 11c, elasticity is given to the peripheral wall of the hole 11c, so that the output plug is securely held when inserted.

Although the housing 11 of the main body 10 is formed in a substantially rectangular shape, other shapes, for example, a side wall may be formed in a polygonal shape or a disk shape may be used.

[0020]

As described above, according to the present invention, the output plug at the end of the DC output cord of the AC adapter is inserted and held in the housing when not in use. Defects can be prevented. In addition, because the flanges are provided on the upper and lower peripheral edges of the housing, it is possible to prevent the output cord from being wound around the outer periphery of the side wall of the housing and to prevent the output cord from being collapsed. And
Portability and storability are improved.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view illustrating the present invention.

FIG. 2 is a perspective view of the use state of the AC adapter of the present invention.

FIG. 3 is a schematic perspective view of a conventional AC adapter.

[Explanation of symbols]

 Reference Signs List 10 main body 11 housing 11a (housing) side surface 11b (housing) flange 11c hole 11d slit 11e slit 12 power plug (AC plug) 13 output plug (pin plug) 14 output code (DC output code)

Claims (4)

[Claims] 1. A main body including a housing storing a circuit for converting a commercial AC power supply into a required rated voltage and a current of a direct current, a power plug directly provided from a housing of the main body and inserted into an AC power outlet, An AC adapter comprising: an output cord directly pulled out of a housing of the main body; and an output plug at a tip of the output cord, wherein a hole for inserting and holding the output plug is provided on one surface of the housing. 2. The periphery of the opening of the hole is retracted from the surface of the housing where the hole is provided, so that when the output plug is inserted and held, the end of the output plug near the output cord does not protrude significantly from the outer shape. The AC adapter according to claim 1, wherein: 3. The upper and lower two opposing surfaces of the housing are each provided with a flange-like portion whose peripheral edge protrudes outward from a side wall formed between the two surfaces, and a side wall between the two flange-like portions is provided. 3. The AC adapter according to claim 1, wherein an output cord is wound around and held. 4. The power plug both poles can be turned and folded and stored in two slits provided on the upper surface of the housing when not in use, and a hole for holding the output plug is located in the middle of the two slits. The axial direction of the hole is provided in parallel with the slit direction, and a slit is opened upward from the inner wall to provide elasticity to the peripheral wall of the hole together with the two slits for accommodating the power plug. 4. The method according to claim 1, wherein the holding is ensured.
The AC adapter according to 1.