JPS647565Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention has a power supply section with a built-in rechargeable secondary battery and a power supply section with a built-in non-rechargeable primary battery, which are provided separately. The present invention relates to a power supply device in which one of these is stored in a storage unit and supplies voltage to electronic equipment.

Background Art and Problems Portable electronic devices such as magnetic recording devices that handle video signals usually use a secondary battery as a power source, which can be charged with a charger and used repeatedly. However, as technology improves, the overall size of the device is becoming smaller and power consumption is being reduced, and it is now possible to use dry cells, which are primary batteries, as a power source. is also being considered. In such electronic devices, a power supply unit with a built-in secondary battery (hereinafter referred to as the secondary power supply unit) and a power supply unit with a built-in primary battery (hereinafter referred to as the primary power supply unit) are compatible. It is convenient to install a power supply device that uses the power supply section stored in the storage section as a power source. . In configuring such a power supply device, each of the primary and secondary power supply sections should be formed to have the same external shape so that they can be housed in the same storage section. is possible.

By the way, a charger that charges a secondary power supply part is usually equipped with a charging chamber that corresponds to the external shape of the secondary power supply part, and the secondary power supply part is inserted into this charging chamber. It is made to be charged with. Therefore, as mentioned above, if the primary power supply part has the same external shape as the secondary power supply part,
The primary power supply unit can also be inserted into the charging chamber of the charger, and therefore, an operator may accidentally insert a primary power supply unit that cannot be recharged into the charging chamber of the charger, and the primary power supply unit cannot be charged. There is a risk that it will go away.

Purpose of the invention In view of the above, the present invention prevents the primary power source from being charged by preventing the primary power source from being inserted into a charger designed to charge the secondary power source. Another object of the present invention is to provide a power supply device in which both a primary power supply section and a secondary power supply section are housed in an oriented position in a storage section that accommodates the power supply section.

Summary of the invention A power supply device according to the invention includes an inner wall surface forming a hollow space having an opening, and a storage section provided with a protrusion projecting from the inner wall surface into the above-mentioned hollow space. and a first voltage obtained by inserting the rechargeable first power supply section into the storage section through the opening thereof such that the outer surface thereof is in contact with the end surface of the above-mentioned protrusion section and is oriented. In the supply state, the second power supply unit, which is not rechargeable, is configured such that the groove provided on the outer surface thereof engages with the above-mentioned protrusion.
The second one obtained by being inserted into the storage part through the opening thereof.
The voltage supply state can be selectively changed. As a result of this configuration, the cross-sectional dimension of the primary power supply section perpendicular to the direction of insertion into the storage section is larger than that of the secondary power supply section by at least the dimension of the protrusion of the storage section, and therefore, The primary power supply section cannot be inserted into the charging chamber of the charger, which corresponds to the external shape of the secondary power supply section, which prevents the charger from charging the primary power supply section. In this case, both the primary power supply section and the secondary power supply section are placed in the correct position.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a cross section of an example of a power supply device according to the present invention. The power supply device 1 in this example is installed inside a portable magnetic recording device that records video information, for example.

The power supply device 1 is roughly divided into a storage section 10, a secondary power supply section 20, or a primary power supply section 30.
Each part will be explained in detail below.

As shown in FIG. 2, the storage section 10 is provided inside the magnetic recording device 2, for example, and selectively stores each of the secondary power supply section 20 and the primary power supply section 30. It is constructed with an inner wall surface 10' forming a hollow space having an insertion opening 12 that is opened and closed by a lid 11 shown in the figure, and a secondary power supply section 20 or a primary power supply section 30 is connected from this insertion opening 12. It is designed to be inserted into a hollow space. On the inner wall surface 10' of the storage section 10, a first
As shown in the figure, protrusions 13 and 14 that protrude into the hollow space and extend linearly in the insertion direction of the secondary or primary power supply section 20 or 30 are provided on the upper and side parts, respectively.

The secondary power supply section 20 has a storage case 21 as shown in FIG.
A recess 22 is provided at the distal end in the insertion direction a. The storage case 21 contains a secondary battery.
For example, five nickel-cadmium storage batteries (not shown) that generate a voltage of 1.2V are built-in, so that the secondary power supply section 20 supplies a voltage of, for example, 6V. There is. As shown in FIG. 4, this secondary power source section 20 is partially inserted into a charging chamber 24 of a charger 23 to be charged. The charging chamber 24 of the charger 23 has approximately the same external shape as the insertion portion of the secondary power supply section 20 . The secondary power supply section 20 configured in this way is inserted into the hollow space of the storage section 10 in the insertion direction a, and as shown in FIG. It is brought into contact with the end surface of 14 to regulate its position, and is positioned in the storage section 10. Then, a state is established in which voltage can be supplied to the main body of the magnetic recording device 2 from a voltage sending terminal (not shown).

On the other hand, the primary power supply section 30 has a storage case 31 as shown in FIG.
A groove 3 having a U-shaped cross section that engages with the protrusion 13 of 0
2, and a pair of grooves 33 having an L-shaped cross section and engaging with the projections 14 of the storage portion 10 are provided on both sides of the lower outer surface portion in the figure.
The storage case 31 contains a primary battery, for example,
A dry battery (not shown) that generates a voltage of 1.5V is
For example, there are four built-in power supply units, and the primary power supply unit 30, like the secondary power supply unit 20, generates a voltage of 6V. The primary power source section 30 configured in this way is inserted into the hollow space of the storage section 10 in the insertion direction b, and as shown in FIG.
2 fits into the protrusion 13 of the storage section 10, and the groove 33
is engaged with the protrusion 14 of the storage portion 10 and is positioned within the storage portion 10. and,
A state is established in which voltage can be supplied to the main body of the magnetic recording device 2 from a voltage sending terminal (not shown). In this way, the primary power supply section 3 stored in the storage section 10
0 means that the cross-sectional dimension perpendicular to the insertion direction b is at least as large as that of the storage section 10 compared to that of the secondary power supply section 20.
Therefore, the primary power source section 30 cannot be inserted into the charging chamber 24 of the charger 23. Note that the dry battery built in the primary power supply section 30 is
It is assumed that it can be exchanged freely.

As described above, the primary power supply section 30 cannot be inserted into the charging chamber 24 of the charger 23, and charging to the primary power supply section 30 is prevented. In the case of the recording device 2, a charging section corresponding to the charger 23 is provided inside the secondary power supply section 2 housed in the storage section 10.
0 can be charged as necessary, and even when the primary power supply section 30 is stored in the storage section 10, there is a risk that the primary power supply section 30 will be charged. There is. Therefore, in this example, as shown in FIGS. 6A and 6B, the storage section 10
A switch 40 is disposed at a location where the tip of the power supply section 20 or 30 can reach, and when the primary power supply section 30 is placed in the storage section 10, the primary power supply section 30 is turned off as shown in FIG. 6A. The switch 40 is turned on by the tip of the section 30, and on the other hand, when the secondary power supply section 20 is placed in the storage section 10, as shown in FIG. 6B, the recess 22 of the secondary power supply section 20 is turned on. The presence of the switch 40 turns it off. When this switch 40 is turned on, charging operation in the charging section is prevented. Therefore, when the secondary power supply section 20 is placed in the storage section 10, the charging operation for the secondary power supply section 20 is performed as necessary, and when the primary power supply section 30 is placed in the storage section 10, The charging operation for the primary power supply unit 30 is not performed, and charging of the primary power supply unit 30 is prevented.

Effects of the invention In the power supply device according to the present invention, the cross-sectional dimension of the primary power supply section perpendicular to the direction of insertion into the storage section is at least larger than that of the secondary power supply section provided on the inner wall surface of the storage section. Since it is made larger by the size of the protrusion, the primary power supply section cannot be inserted into a charger that has a charging chamber shaped to correspond to the external shape of the secondary power supply section. Charging of the primary power supply unit by the charger is prevented. Furthermore, although the cross-sectional dimensions perpendicular to the direction of insertion into the storage section are different from each other, both the primary power supply section and the secondary power supply section are housed in the storage section in the correct position. Voltage is supplied. Furthermore, in the power supply device according to the present invention, each of the primary power supply section and the secondary power supply section is
Since it can be selectively stored and used as a power source, it is suitable for use as a power source device for various portable electronic devices.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a power supply device according to the present invention, FIG. 2 is a diagram showing that the example shown in FIG. 1 is installed inside a magnetic recording device, and FIG. FIG. 4 is a perspective view showing the secondary power supply section in the example shown in the figure; FIG. 4 is a diagram showing how the secondary power supply section shown in FIG.
The figure is a perspective view showing the primary power supply section in the example shown in FIG. FIG. In the figure, 1 is a power supply device, 10 is a storage part, 10' is an inner wall surface, 12 is an insertion opening, 13 and 14 are protrusions, 20 is a secondary power supply part, 30 is a primary power supply part, 32
and 33 are grooves.

Claims (1)

[Scope of utility model registration request] A first rechargeable power supply unit comprising: an inner wall surface forming a hollow space having an opening; and a storage section provided with a projection projecting from the inner wall surface into the hollow space; , a first voltage supply state obtained by being inserted into the storage part through the opening so that the outer surface is in contact with the end surface of the protrusion and is oriented; and a second power supply that is not rechargeable. The second voltage supply state is obtained by inserting the part into the housing part through the opening part such that the groove part provided on the outer surface part of the part engages with the protrusion part. power supply.