JPH056332U - Storage battery - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose of the present invention is to obtain a storage battery that can easily know whether or not the amount of electrolyte is appropriate, and can easily know the amount to be replenished even when replenishment is necessary. To do. [Structure] A base electrode having a sufficient length for contact with an electrolytic solution and a plurality of detection electrodes having different lengths are provided, and when each detection electrode contacts the electrolytic solution, the detection electrode is energized by energization. The liquid level detection unit is configured so that the corresponding light emitting diode emits light.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a storage battery equipped with a liquid level detection device that detects the amount of electrolyte and the amount of replacement liquid.

[0002]

[Prior art and its problems]

 Generally, in a storage battery, the surface of the electrolyte changes due to charge and discharge. If it drops too much, the performance deteriorates, and if it rises too much, problems such as liquid leakage occur. Conventionally, as a method of knowing the position of the electrolyte surface, a method of making a battery case transparent and measuring from the outside has been used, but it may be difficult to look directly at the location where the storage battery is installed.

Further, a pair of fixed electrodes is partially immersed in an electrolytic solution, and a liquid level sensor is provided for detecting that the electrolytic solution surface has become lower than the electrode position and issuing an alarm by sound or light. There is also a storage battery.

However, it is difficult to accurately measure the position of the electrolytic solution surface with a pair of fixed electrodes, and it is merely to inform that the position is below a certain standard.

In this case, if there is too much electrolytic solution, it cannot be notified, and there is a risk of liquid leakage.

Further, even if an alarm is issued due to a decrease in the amount of the electrolyte, the amount of the replacement liquid cannot be known, and there is a risk that the electrolyte is overfilled.

[0007]

[Means for Solving the Problems]

 The present invention has a basic electrode having a sufficient length for contacting an electrolytic solution, and a plurality of detection electrodes having different lengths. It is characterized by having a liquid level detection unit configured so that the corresponding light emitting diode emits light, and the liquid level of the electrolytic solution can be known stepwise by the number of lighting of the light emitting diode.

[0008]

[Action]

 A light emitting diode provided on the outside such as the outer surface of the storage battery emits light corresponding to one of the plurality of detection electrodes that is in contact with the electrolytic solution. The length of each detection electrode is determined based on the appropriate electrolytic solution surface, and the amount of electrolytic solution required to light one light emitting diode is determined, so the amount of electrolytic solution to be supplemented is clear, If you put too much, you can know the amount. Therefore, the optimum liquid level can always be maintained.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a schematic diagram of a storage battery according to an embodiment of the present invention and an example of a circuit diagram of a liquid level detection unit thereof, and FIG. 2 is a diagram showing an example of its usage state.

In this embodiment, the electrode plate of the storage battery itself is used as the basic electrode. In addition, the plurality of detection electrodes 1 have different lengths, and the detection electrodes having a length such that the light emitting diode emits light at the appropriate position of the electrolytic solution surface are distributed mainly. Due to the change, conduction is generated between the detection electrode 1 and the electrode plate 3 which are in contact with the electrolytic solution 2, and the light emitting diode 4 is turned on.

The detection electrode 1 is made of a metal such as a Ni-based alloy that has electric conductivity and is not corroded by an electrolytic solution, and is covered with an insulating resin except for the tip. The amount of electrolyte required to light one light emitting diode is determined by the difference in electrode length.

The amplification unit 5 includes a storage battery 6 as a power source, and can reliably detect the position of the electrolytic solution surface. The amplifying unit 5 is composed of a transistor 7, and is a circuit for amplifying the conduction between the electrode end serving as the detection end and the electrode plate 3 by a power supply (storage battery) 6 to turn on the light emitting diode 3.

The storage battery itself whose liquid level is to be measured may be used as the power source. As a matter of course, the base electrode may be a common electrode having a sufficient length in addition to the storage battery electrode.

The length and the like of the detection electrode 1 are determined by the specifications of the storage battery 8 to be measured, particularly the height of the electrolyte surface and the position of the electrode plate 3.

When the electrolyte surface is at the proper position, the light emitting diode 3 must be turned on or turned off, and a storage battery lid or the like is provided with an indication to that effect. You may distinguish by changing the color of the light emitting diode 3.

In maintenance, since the number of light emitting diodes 3 that are lit decreases as the surface of the electrolytic solution lowers, the electrolytic solution is replenished through the injection hole 9. The amount of replacement fluid can be known from the number of light emitting diodes 3 that are turned off.

Further, even when the amount of the electrolyte solution is too large or the amount of the replacement liquid is too large, the light emitting diode which should be turned off is lit, so that it can be known and the liquid leakage can be prevented. Also in this case, it is possible to easily know how much the liquid volume is by the number of light emitting diodes 3 lit.

[0019]

[Effect of the device]

 As described above, according to the present invention, it is possible to always know whether or not the amount of the electrolytic solution of the storage battery is an appropriate amount, and to know the amount even when the replacement liquid is necessary.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of a storage battery according to an embodiment of the present invention and an electric circuit for liquid level detection.

FIG. 2 is a view showing an example of a usage state of the storage battery according to the present invention shown in FIG.

[Explanation of symbols]

 1 Detection Electrode 2 Electrolyte Solution 3 Electrode Plate 4 Light Emitting Diode 5 Amplifying Section 6 Power Supply 7 Transistor 8 Storage Battery 9 Injection Hole

Claims (1)

[Claims for utility model registration] [Claim 1] A base electrode having a sufficient length for contacting with an electrolytic solution and a plurality of detection electrodes having different lengths, each detecting electrode being in contact with the electrolytic solution A storage battery including a liquid level detection unit configured so that a light emitting diode corresponding to the detection electrode emits light when energized.