JPH055776A - Battery checker - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a battery checker capable of inspecting the battery consumption level without removing the protective film even if the entire surface of the battery is covered with the protective film. .. [Structure] Each terminal of the battery checker that is brought into contact with each electrode of the battery is made needle-shaped, and each needle-shaped terminal is applied perpendicularly to the electrode surface of a battery sold at a store. Allows inspection of battery consumption without damaging the protective film that is the packaging.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery checker for inspecting battery consumption.

[0002]

2. Description of the Related Art Conventionally, a battery checker as shown in FIG. 2 has been used to inspect whether or not a desired battery can be used. That is, in this battery checker, metal pieces are attached to one inner wall surface of the battery box 1 which faces each other to form a positive terminal 2, and a spiral spring is attached to the other inner wall surface of the battery box 1 to form a negative terminal 3. The terminal 2 and the negative terminal 3 are electrically connected to the input terminals of the voltmeter 4, respectively. When this is used, if the battery to be inspected is housed in the battery box 1, the negative electrode of the battery and the negative terminal 3 come into contact with each other, and the positive electrode of the battery is added to the positive electrode by the spiral spring. Since the voltage for contacting the terminal 2 is applied and the voltage between the electrodes of the battery can be measured by the voltmeter 4, the degree of consumption of the battery can be inspected from the measurement result.

Further, as shown in FIG. 3, in the battery checker, the conductive paint 5 having a relatively large electric resistance is applied to the surface of the film 6 in the form of a thin band, and the band-shaped conductive paint 5 is applied.
There are circular terminals 7 and 8 at both ends, and a temperature-sensitive paint 9 is applied on the surface of a belt-shaped conductive paint 5. When this is used, the film-like battery checker is bent as shown in FIG. 4 so that the terminals 7 and 8 are brought into contact with the positive electrode and the negative electrode of the battery, respectively. Since an electric current flows into the conductive paint 5 and the conductive paint 5 generates heat and the temperature-sensitive paint 9 changes color, the degree of battery consumption can be inspected by observing the degree of color change.

However, since batteries sold in stores at present are often covered with a protective film on the entire surface, it is possible to use the conventional battery checker as described above without removing the protective film. There is a problem that it is impossible to inspect the consumption level of the battery to be purchased, and it is often possible to purchase a battery with a reduced electromotive force due to spontaneous discharge.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional battery checker as described above. Even if the entire surface of the battery is covered with a protective film, the battery can be removed without removing it. An object is to provide a battery checker capable of inspecting the degree of wear.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the battery checker of the present invention has a shape of a terminal for contacting each electrode of a battery with a needle shape, and the needle-shaped terminal is applied substantially perpendicularly to the electrode surface. Configure to get.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on the embodiments shown in the drawings. FIG. 1 is a plan view showing an embodiment of the battery checker of the present invention. In the figure, reference numeral 10 is a battery box, and metal fittings 11, 12 on which metal needles 11, 11 are vertically installed are fixed to one inner wall surface facing each other. Further, a hole is formed in the wall surface of the battery box 10 facing the metal fittings 12, 12 and a sliding metal 13,
13 is fixed, and metal shafts 16, 16 having knobs 14, 14 at one end and needles at the other ends 15, 15 are inserted into through holes of the sliding metal 13, , 13 have coil springs 17, 17 between the outer wall side end surface of the battery box 10 and the knobs 14, 14, and stoppers (flange) 18, 18 are fixed near the tips of the metal shafts 16, 16. Then, the metal shafts 16 and 16 are prevented from coming off from the sliding metals 13 and 13 by the springs 17 and 17. Further, the sliding metals 13 and 13 and the metal fittings 12 and 12 are electrically connected to each other, and the respective connection ends are connected to the respective terminals of the voltmeter 19.

In the battery checker thus constructed, the battery to be inspected when used is stored in the battery box 10, and then one knob 14 is sequentially pushed against the spring 17 as shown in FIG. Even if the entire surface of the battery to be covered is covered with a protective film, the tips of the needle 11 and the other end 15 of the metal shaft 16 respectively make small holes in the protective film without breaking the protective film, and the battery is positive or negative. Since the inter-electrode voltage of the battery can be measured with the voltmeter 19 in contact with the electrodes, the consumption level of the battery can be inspected from the measurement result.

The battery checker described above may be modified as shown in FIG. 6 when a large number of batteries are covered with a protective film. In the figure, reference numeral 20 denotes a plastic plate whose both ends are vertically bent, and the metal fitting 11 on which the metal needle 11 as described above is erected is fixed to one of the opposite ends of the plastic board and the metal fitting 12 faces the metal fitting 12. At the end of the plastic plate 20, the sliding metal 13, the metal shaft 16, the coil spring 17 and the stopper 18 as described above are provided, and the sliding metal 13 and the metal fitting 12 are connected to the respective terminals of the voltmeter. .. When using the battery checker thus constructed, as shown in FIG.
When the knob 14 is pushed against the spring 17 each time the plurality of batteries are sequentially mounted on the needle 0, the needle 11 and the metal shaft 16
Since the tip of each of the electrodes makes a small hole in the protective film on the electrode surface of the battery placed on the plastic plate 20 and contacts the positive and negative electrodes of the electrode, even if a large number of batteries are covered with the protective film, The degree of wear can be inspected sequentially.

Further, FIG. 8 is a view showing a modified embodiment of the battery checker of the present invention. In the figure, reference numeral 21 denotes a thin strip-shaped conductive paint having a relatively large electric resistance. The strip-shaped conductive paint 21 is applied to the surface of the film 22 and
Both ends of the belt-shaped conductive paint 21 are circular terminals 23 and 24, and each terminal has a short needle 2 perpendicular to each surface.
Stand 5 and 26. Further, the temperature-sensitive paint 27 is applied on the surface of the belt-shaped conductive paint 21 to form a battery checker.

When this battery checker is used, the film 22 is curved so that the needles 25 and 26 are formed as shown in FIG.
If each of them is applied vertically to both the positive and negative electrodes of the battery, even if the entire surface of the battery to be inspected is covered with a protective film,
Since the tips of the needles 25 and 26 make small holes in the protective film and the tips come into contact with the positive and negative electrodes of the battery, respectively, a current according to the electromotive force of the battery flows through the conductive paint 21 to heat the paint. By observing the degree of color change of the temperature-sensitive paint 27 due to the heat generation, it is possible to inspect the battery consumption level without removing the protective film.

In the above-mentioned embodiment, the needle is applied perpendicularly to each surface of each electrode of the battery to be inspected, but in the present invention, the angle of applying the needle is such that a hole is formed in the protective film covering the battery. It is obvious that the structure is not limited to the vertical if possible, and the structure in which the needle is applied to the electrode of the battery does not have to be limited to the structure described above. Further, in the above-mentioned embodiment, the voltage between electrodes of the battery or the degree of electromotive force is inspected by using the voltmeter or the temperature sensitive paint, but the present invention is not limited as long as it can inspect the consumption of the battery. The present invention is not limited to this, and the presence or absence of the lighting may be observed using, for example, an LED.

[0013]

As described above, according to the present invention, since the terminal of the battery checker for contacting the positive and negative electrodes of the battery to be inspected has a needle shape, even if the entire surface of the battery is covered with the protective film, Since the positive and negative electrodes of the battery can be brought into electrical contact with the terminals of the battery checker without breaking them, it is necessary to inspect the battery consumption level without damaging the protective film that is the packaging of the battery sold at the store. Is possible. Therefore, if the battery checker according to the present invention is provided at the battery sales floor, the customer can inspect the consumption level of the battery before purchasing the battery without breaking the protective film covering the battery. There is no fear of purchasing a battery with reduced electromotive force due to natural discharge, and there is a remarkable effect in improving the quality of service to customers.

[0014]

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a diagram for explaining a conventional battery checker.

FIG. 3 is a diagram for explaining a conventional battery checker.

FIG. 4 is a diagram illustrating a method of using a conventional battery checker.

FIG. 5 is a diagram for explaining an embodiment of the present invention.

FIG. 6 is a diagram showing a modified example of the present invention.

FIG. 7 is a diagram for explaining a modified example of the present invention.

FIG. 8 is a diagram showing a modified example of the present invention.

FIG. 9 is a diagram for explaining a modified example of the present invention.

[Explanation of symbols]

 10 Battery Box 11 Metal Needle 12 Metal Fitting 13 Sliding Metal 14 Knob 16 Metal Shaft 17 Coil Spring 18 Stopper 19 Voltmeter

Claims (1)

Claim: What is claimed is: 1. A battery checker characterized in that a terminal for contacting each electrode of the battery has a needle shape. 2. A battery checker characterized in that a terminal for contacting each electrode of the battery is formed into a needle shape, and the needle terminal is applied substantially perpendicularly to the electrode surface.