JPH083149Y2 - Rechargeable power supply - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a rechargeable power supply device, and more particularly to a structure for protecting an input unit and an output unit provided in a main body case.

(Prior Art) A power supply device for supplying backup power to various electric and electronic devices (hereinafter referred to as electronic devices) is generally configured by housing a battery in a box-shaped main body case, and is provided on the back surface of the main body case. By attaching a mounting part such as a hook to a belt on the waist, it is possible to supply electric power to an electric device while carrying it.

By the way, it is conceivable to use a storage battery as the above battery so that the battery can be used while being repeatedly charged. In this case, a storage battery and a step-down part such as a step-down transformer that supplies a charging current to the storage battery by stepping down the commercial power supply are housed inside the main body case, and an input part connected to the commercial power supply is provided on the outer surface thereof. It is necessary to provide an output section for supplying the electric power of the storage battery to the electronic device.

(Problems to be solved by the invention) When the input section and the output section are provided on the outer surface of the main body case as described above, this type of power supply device is often carried and used as a portable type. Therefore, the input part and the output part provided on the outer surface of the main body case may be damaged and deformed due to the impact when dropped, and the connection to the AC power supply or the electronic device may be hindered.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a rechargeable power supply device having excellent protection of an input unit and an output unit against a shock when dropped.

(Means for Solving the Problem) For this purpose, the present invention is provided with a box-shaped main body case 2, a step-down unit 4 housed in the main body case 2, and for stepping down commercial power, and the main body case 2. A storage battery 3 that is stored and charged by the output of the step-down unit 4, an input unit 5 that is provided near one end of one wall surface of the main body case 2, and that is connected to a commercial power source via a cord 7;
An output unit 6 is provided on the other wall face opposite to the one wall face, and closer to the one end corresponding to the input unit 5, and for supplying the charging power of the storage battery 3 to the electronic device via the cord 8. The step-down unit 4 and the storage battery are arranged so that the center of gravity G of the main body case 2 is located closer to the other end than a virtual straight line P connecting the input unit 5 and the output unit 6 near the one end. 3 is an arrangement relationship in the main body case 2 of FIG.

(Operation) In the above configuration, when the main body case 2 is removed, the main body case 2 tilts and falls toward the center of gravity G, and the input portion 5
Since the end K on the side opposite to the output portion 6 and the output portion 6 collides with the floor 20 or the like, the drop impact is not directly applied to the input portion 5 or the output portion 6, and therefore the input portion 5 or the output portion 6 is protected from the drop impact. .

(Example) Next, an example of the present invention will be described with reference to a bare surface.

FIG. 1 is a perspective view of the rechargeable power supply device 1, and FIGS. 2 to 4 are a front view, a side view and a bottom view, respectively. 2 is a combination of two divided half cases 2a and 2b. This is a box-shaped main body case, and a plurality of (four) storage batteries 3 and a step-down unit 4 composed of a transformer are housed in the upper part and the lower part inside thereof, respectively. Further, on the upper and lower wall surfaces of the main body case 2, there are provided an input unit 5 connected to a commercial power source and an output unit 6 connected to supply charging power for the storage battery 3 to an electronic device (not shown). 5a is a terminal pin provided on the input section 5,
Reference numerals 7 and 8 are connection cords that are connected to a commercial power source and electronic devices, respectively. In particular, as shown in FIG. 2, the input unit 5
Is provided on one wall surface of the main body case 2, for example, near one end (left side) of the lower surface. The output unit 6 is also provided near the other wall surface corresponding to the input unit 5, for example, one end of the upper surface. Further, the heavy pressure-lowering portion 4 is housed in a position displaced to the other side (rightward) from the center line NA of the main body case 2. Therefore, the center of gravity G of the main body case 2 is located closer to the other end than the virtual straight line P connecting the input section 5 and the output section 6. Reference numeral 9 is a connecting bolt for connecting the half cases 2a and 2b, and 10 is a circuit board on which a charging circuit is wired.

In FIG. 3, reference numeral 13 denotes a mounting portion formed of a hook provided on the back side of the main body case 2, and includes a base end portion 13a protruding from the main body case 2 and a substantially V-shaped engaging portion 13b. The base end portion 13a is attached to the attachment portion 14 recessed in the upper portion of the main body case 2 by the connecting bolt 9. 13c is a non-slip rib. The mounting portion 13 is made of a flexible material such as synthetic resin or a thin metal plate. Further, a slight space t is provided between the engaging portion 13b and the back surface of the main body case 2. Therefore, the engagement portion 13b is configured to be slightly bent inward (toward the main body case 2) about the base end portion 13a. A is a waist of the body, and B is a belt to which the mounting portion 13 is detachably attached.

Reference numeral 15 denotes a groove groove as a heat radiating portion which is laterally recessed on the surface of the main body case 2. This recessed groove 15 is used for the storage battery 3 described above.
And a plurality of strips are formed over the entire surface facing the step-down portion 4. When the storage battery 3 is charged with the power that is stepped down by the step-down unit 4 by connecting the input unit 5 to a commercial power source, the groove 15 produces heat generated by the operation of the step-down unit 4 on the side opposite to the waist. It is formed to efficiently dissipate heat to the outside. As shown in FIGS. 5 and 6, the storage battery 3
Since the step-down part 4 and the step-down part 4 are disposed in contact with the inner surface of the front half case 2a, the half case formed by forming the groove groove 15 is formed.
Compensating for the decrease in strength of 2a, and from the pressure reducing unit 4 to the half case 2a
Improves heat transfer to.

FIG. 7 is an electric circuit diagram in which the input section 5 is on the primary side of the step-down section 4 composed of a transformer, and the storage battery 3 is a rectifier.
It is connected via the 16 to the secondary side of the step-down unit 4, and while charging by the output of the step-down unit 4, an electronic device is connected to the output unit 6 to supply power and charging and use of the electronic device can be performed simultaneously. It is like this.

This power supply device 1 is configured as described above, and when using it as a backup power supply, the mounting unit
13 is attached to the belt B, the device 1 is carried on the body A, and an electronic device is connected to the output unit 6 to supply power to the device. Storage battery 3
When the output voltage drops due to the discharge of No. 3, the input unit 5 is connected to the commercial power source to charge the storage battery 3.

By connecting the device 1 to the body A and using an electronic device while connecting to a commercial power source with the connection cord 7, charging can be performed at the same time.

By the way, the device 1 is easily dropped when, for example, the mounting portion 13 is attached to or detached from the belt B, or the connection cord 8 is held and carried. However, as described above, the virtual straight line P and the center of gravity G
By setting the positional relationship of the
As shown in the figure, since the main body case 2 tilts toward the center of gravity G and falls, the end K on the side opposite to the input section 5 collides with the floor 20.
Therefore, no direct impact is applied to the input section 5 provided near the end opposite to the end K, and damage is prevented.
Also, when the output unit 6 is dropped with the output unit 6 facing downward, the output unit 6 is protected from a drop impact for the same reason.

(Effect of the Invention) As described above, the rechargeable power supply device 1 according to the present invention
Is a box-shaped main body case 2, a step-down unit 4 housed in the main body case 2 and for stepping down commercial power, stored in the main body case 2, and charged by the output of the step-down unit 4. The storage battery 3, the input portion 5 provided near one end of one wall surface of the main body case 2 and connected to a commercial power source via a cord 7, and the other wall surface facing the one wall surface, and the input portion 5 is provided near one end corresponding to 5, and is provided with an output unit 6 for supplying the charging power of the storage battery 3 to an electronic device via a cord 8,
The step-down unit 4 and the storage battery 3 are arranged so that the center of gravity G of the main body case 2 is located closer to the other end than a virtual straight line P connecting the input unit 5 and the output unit 6 near the one end. Since the arrangement relationship within the main body case 2 has been set, the main body case 2
When it is dropped, the input section 5 can be protected from a drop impact because it falls while tilting toward the end portion K side opposite to the input section 5. Therefore, even if the main body case 2 is accidentally dropped, the input unit 5 can be prevented from being damaged, and the risk of a short circuit or the like due to the damage of the input unit 5 can be reduced. Further, the same can be reduced when the output unit 6 is dropped on the lower side.

[Brief description of drawings]

1 is a perspective view of a rechargeable power supply device, FIG. 2 is a front view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a bottom view thereof. 5 and 6 are sectional views of the same, FIG. 7 is an electric circuit diagram, and FIG. 8 is a front view when dropped. 1 ... Rechargeable power supply 2 ... Main body case 3 ... Storage battery 4 ... Step-down unit 5 ... Input unit 6 ... Output unit 16 ... Rectifier G ... Center of gravity P ... Virtual line

Claims (1)

[Scope of utility model registration request] 1. A box-shaped main body case 2, a step-down unit 4 housed in the main body case 2, and for stepping down commercial power.
A storage battery 3 housed in the main body case 2 and charged by the output of the step-down unit 4, provided near one end of one wall surface of the main body case 2, and connected to a commercial power source via a cord 7. The input unit 5 and the other wall face opposite to the one wall face, and is provided near the one end corresponding to the input unit 5, and the charging power of the storage battery 3 is supplied to the electronic device via the cord 8. Output unit 6 for
And the step-down unit 4 and the lowering unit 4 such that the center of gravity G of the main body case 2 is located closer to the other end than a virtual straight line P connecting the input unit 5 and the output unit 6 near the one end. A rechargeable power supply device characterized in that an arrangement relationship of the storage battery 3 in the main body case 2 is set.