JPH0731506Y2 - Battery checker for dry cells - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a battery checker for dry batteries, which can measure the voltage of a plurality of dry batteries having different terminal distances.

<Prior Art> For a current dry battery, taking a cylindrical dry battery such as a cylindrical manganese dry battery or a cylindrical alkaline battery as an example, depending on a size of a battery storage portion in an electric device, a single type to a single type 5 battery. Many types such as shapes are used.

Since these dry batteries have different heights and diameters, conventionally, when measuring the voltage in order to check the life of these dry batteries, for example, a measuring instrument as shown in FIG. 4 has been conventionally used.

The measuring device 14 has battery storage portions 15a to 15d each having a shape similar to the outer diameter of a single type 1 to a single type 5 battery. That is, if the dry battery is of the AA type, it is stored in the battery storage section 15a, if it is the AA type, it is stored in the battery storage section 15b, and if it is the AA type, the battery storage section 1a.
5c, and in the case of single 4 and 5 type, they are stored in the battery storage portion 15d.

Also, provided on the bottom of these battery storage parts 15a to 15d (-)
Side (+) side of the measurement terminal portion and the (+) side measurement terminal portion 16 led out by the lead wire are respectively brought into contact with the (−) terminal and the (+) terminal of the dry battery, and the voltage of the dry battery is displayed by the meter 17. I am trying. The illustrated state is an example of measuring the voltage of the AA dry battery B3.

<Problems to be solved by the invention> However, in order to measure the battery voltage with the above-mentioned measuring instrument, the battery must be put in a place corresponding to the size of each battery, and many different types of batteries are required. When measuring, the work is complicated because it takes time and labor for replacement.

Also, since electrical wiring must be provided at each of these locations, for example, even if the (+) side measurement terminal section is shared by the lead wires, the (-) side terminal must be provided for each battery storage section. Therefore, there is a problem that the wiring becomes complicated, and the main body becomes too large to provide a place for each battery type.

An object of the present invention is to provide a battery checker for dry batteries, which is compact and capable of measuring a plurality of types of batteries by a simple operation without requiring such a large-sized main body.

<Means for Solving the Problems> A battery checker for a dry battery according to the present invention is a substantially disk-shaped battery having a first measuring terminal portion fixed to the main body, which is brought into contact with one terminal of the dry battery, and a plurality of steps provided on the outer periphery. Second rotator is rotatably held by the main body at an eccentric position deviated from the center thereof, and a second measuring terminal portion is brought into contact with the other terminal of the dry battery on the outer periphery including the step of the rotor. Provided,
Further, the LED and its driving circuit are provided.

In this configuration, the rotating body is rotated so that one or the outer periphery of the plurality of steps and the first measurement terminal portion are opposed to each other, whereby the first measurement portion and the second measurement terminal portion are separated from each other. By appropriately changing the linear distance, the first and second measurement terminal portions can be brought into contact with the respective terminals of a plurality of types of dry batteries having different terminal distances.

<Operation> According to the above configuration, only one (+) side measurement terminal and one (−) side measurement terminal are required, and the apparatus can be made extremely compact.

When measuring the voltage of dry batteries of different types, the linear distance between the second measurement terminal portion provided on the outer periphery of the rotating body and the first measurement terminal portion on the main body is determined by measuring the battery type, It can be changed appropriately according to the height of the battery, and therefore, the voltage of a plurality of types of dry batteries can be measured with a simple operation.

<Example> An example of the present invention will be described below.

In FIG. 1, a substantially disk-shaped rotating body 2 having a notch 2a formed in a part of the outer periphery of a main body 1 which is divided into two and having a plurality of steps having different depths and different shapes. Is rotatably attached at an eccentric position, which is off the center of the axis. In addition, a (−) side measurement terminal portion 3 made of a conductive member is provided on the upper surface of the bottom portion of the main body 1.

As shown in FIG. 2, the main body 1 is constructed by combining a pair of divided bodies 11 and 12. These divided bodies 11 and 12 are each substantially U-shaped, and annular engaging portions 11c and 12c having grooves 11a, 11b, 12a and 12b radially extending in the vertical direction are provided on the upper surfaces facing each other. Are formed respectively. Also,
Through holes 11d and 12d are provided in the central portions of the annular locking portions 11c and 12c.

On the other hand, an annular locking body 2b having a large number of radially extending projections is formed at a place where the rotary body 2 is attached to the main body. Further, a through hole 2c is formed at the center of this annular locking body.

When the main body 1 and the rotating body 2 are combined in the through holes 2c, 11d, 12d with screws or bolts and nuts, the main body 2 is locked by the annular locking portions 11c, 12c and the annular locking body 2b. The rotating body 2 and the rotating body 2 are configured to be temporarily locked in stages at a predetermined position.

Further, on the outer periphery including the cutout portion 2a of the rotating body 2, a (+) side measurement terminal portion 7 formed by fixing a wire material made of a conductive material, for example, copper, is provided. The shape of the notch 2a, the outer diameter of the rotating body 2, and the mounting position of the rotating body 2 to the main body 1 are determined by combining the main body 1 and the rotating body 2 as shown in FIG. Are temporarily locked at predetermined positions as described later, the (−) side measurement terminal portion 3 provided on the upper surface of the bottom of the main body and the opposite (+) side measurement terminal portion 7 on the cutout portion 2a.
Is designed to have a linear distance equal to the height of each of the single to single cylindrical dry batteries.

Further, for example, green, yellow, and red LEDs 4 to 6 are embedded in the upper portion of one of the divided bodies 11 in order from the left in the figure so that the light emitting surface thereof can be visually observed from the outside.

On the other hand, the rotating body 2 or the main body 1 has the LED drive circuit shown in FIG. In addition, necessary electrical wiring is provided between the main body 1, the rotating body 2, the measuring terminal portions 3, 7, and the LEDs 4 to 6.

That is, in this circuit, the voltage of the test battery TB is 1.39V.
In the above case, the LEDs 4, 5 and 6 are energized through the resistors R6, R7 and R1, respectively, and in the case of 1.39V to 0.97V, the LEDs 5 and 6 are energized through the resistors R7 and R1. Further, when the voltage of the test battery TB is lower than 0.97V, only the LED 6 is energized via the resistor R1.

Then, by changing the energization pattern of LEDs 4 to 6 (that is, the green, yellow, and red light emission patterns) in this way, it is confirmed that the battery capacity is still sufficient when all three colors emit light. It can be visually inspected that the battery capacity is almost exhausted when the LED lights up, and that the battery life has expired when only the red light is emitted. In this circuit, B is a power supply battery for the circuit.

Next, an example of measuring the voltage of different types of batteries in this embodiment will be described.

First, when measuring the voltage of the AA battery B5, with the (-) side terminal of the battery B5 being in contact with the (-) side measurement terminal 3 of the main body 1 as shown in FIG. 3 (A). The rotator 2 is rotated to the position shown and temporarily locked, and the (+) side terminal of the battery B5 is brought into contact with the measurement site 7a of the (+) side measurement terminal portion 7 on the rotator 2. At this time, the above circuits cause the LEDs 4 to 6 to selectively emit light in accordance with the voltage of the battery B5.

An example of measuring the voltage of the AAA battery B4 is as shown in FIG. 3 (B). By rotating and temporarily locking the rotating body 2 to the position shown in the figure, the (+) side terminal of the battery B4 is Is abutted on and connected to the measurement portion 7b of the measurement terminal portion 7.

Further, FIG. 3 (C) shows an example using the batteries B2 and B3 of AA and 3 type. At this time, the (+) side terminals of the batteries B2 and B3 are brought into contact with and connected to the measurement site 7c of the measurement terminal section 7.

FIG. 3 (D) shows the case of using a single B type battery B1.
The (+) side terminal of is abutted and connected to the measurement portion 7d of the measurement terminal portion 7.

<Advantages of the Invention> As described above, according to the present invention, it is possible to provide a battery checker for dry batteries, which has a compact structure and is capable of measuring a plurality of types of batteries by a simple operation.

Also, since the rotating body is rotatably held by the main body at the eccentric position, the size when not in use can be minimized, and a more compact structure can be achieved. Therefore, in the case of the AA dry cell, it can be measured by inserting it as it is, and even in the case of the AA dry cell, it is sufficient to move the rotating body in the direction to push it up, the contact is complete, and the measurement can be performed with one hand.

Further, since the LED and the drive circuit thereof are provided, the battery capacity can be easily judged visually and, because of the LED, the consumption of the dry battery accompanying the measurement can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention, FIG. 2 (A) is an exploded perspective view of the embodiment, and FIG. 2 (B) is an internal circuit diagram of the embodiment.
3 (A) to 3 (D) are explanatory views showing a usage state of the embodiment, and FIG. 4 is an explanatory view of a conventional example. 1 ... Main body, 2 ... Rotating body, 3,7 ... Measuring terminal section, 4 ...
6 ... LED.

Claims (1)

[Scope of utility model registration request] 1. A substantially disk-shaped rotating body having a first measuring terminal portion fixed to a main body, which is brought into contact with one terminal of a dry battery, and having a plurality of steps on its outer periphery, at an eccentric position deviated from the center thereof. A second measuring terminal portion, which is rotatably held on the main body and is in contact with the other terminal of the dry battery, is provided on the outer periphery including the step of the rotating body, and further, an LED and its driving circuit are provided. A battery checker for dry batteries characterized by the following.