RU2091925C1 - Storage battery condition indicator - Google Patents

Abstract

FIELD: storage batteries. SUBSTANCE: device has magnetically operated contact placed in cartridge secured in battery cell plug, its bottom end being fixed at separator level, and ring-shaped magnetic float carrying weight chosen from condition P_fl=ρ_elmin·V, where ρ_elmin is critical low specific gravity of electrolyte corresponding to permissible state of battery cell discharge; V is float volume. EFFECT: provision for continuous check-up of electrolyte level, critical vacuum, and charge-discharge process in each battery cell. 1 dwg

Description

 The invention relates to the main elements of electrical equipment and can be used for remote monitoring of the state of an acid or alkaline battery (electrolyte level in banks and maximum discharge) during its operation, in particular on vehicles using the battery as a source of engine starting (car, tractor and so on) and a source of movement (electric cars, electric cars and so on).

A device is known for monitoring the level of electrolyte in batteries and the degree of charge of the battery, based on changes in the density and level of electrolyte in the banks of the battery, for example, traffic jams, battery status indicators, and containing two floats, one of which responds to the level of electrolyte, and the second to ultimate discharge battery [1]
However, this device allows the indication of the electrolyte level and the maximum degree of battery discharge only in the stationary state of the vehicle, i.e. It does not provide continuous remote monitoring of the level and density of electrolyte in each bank of the battery from the vehicle cabin.

 The closest in technical essence to the proposed technical solution is taken as a prototype device for determining the state of overdischarge of the battery, as well as to establish the surface level of the liquid contained in it, [2] containing a float part equipped with a permanent magnet or magnetic material that is located inside the housing, and a magnetically controlled contact, which is triggered by the movement of the permanent magnet.

 The disadvantage of the above device is the sufficient design complexity due to the need for a device for pumping electrolyte into the device body and a shutter between the device body and the device for pumping electrolyte.

 The inventive device for indicating the state of the battery is aimed at solving the problem of creating a device simple in design, which allows continuous remote monitoring of the electrolyte level, the maximum degree of discharge and the dynamics of the charge-discharge process of each battery bank.

This object is achieved by the fact that in the device for indicating the state of the battery containing a magnetically controlled contact and a magnetic float, the magnetically controlled contact is located in a capsule that is fixed in the battery plug and its lower end is fixed at the level of the separator, and the magnetic float is ring-shaped and its weight is selected from the condition:
P _pop = ρ _emin • V,
where ρ _{emin is the} extremely low density of the electrolyte corresponding to the permissible degree of discharge of the battery;
V volume of the float.

 In technical solutions known in science and technology today, the author does not know the disclosure of the essence of these signs.

 Thus, the proposed technical solution has a novelty in comparison with the prototype and significant differences compared with the known solutions.

 The device shown in the drawing contains a capsule 1 with a magnetically controlled contact 2 mounted in it, which is fixed in the plug 3 of the battery 4, and a magnetic float 5. The lower sealed end of the capsule is fixed at the level of the separator plates of the battery 6.

 The device operates as follows.

 At a normal level and density of electrolyte 7 in the battery bank, a magnetic float 5 floats on the surface of the electrolyte (position 1), while the magnetically controlled contact is open, and the electronic indicator 9, located, for example, in the vehicle’s cabin, does not light up, which indicates the normal state of the corresponding battery banks. When the electrolyte density reaches a minimum value, for example, equal to the electrolyte density at a 50% discharge of the battery, or the electrolyte level drops to a minimum level of 8, the magnetic float drops (position 11). This leads to the operation of the magnetically controlled contact and the glow of the indicator, which signals a low density and electrolyte level in the corresponding battery bank.

 Using the proposed device, it is possible to continuously monitor the level of electrolyte in each bank of the battery, the maximum degree of discharge of each bank, the dynamics of the charge-discharge during operation, which will allow you to promptly bring the electrolyte level to the required in accordance with the operating instructions for the battery, timely put the battery on recharge , which leads to increased battery life.

Literature
1. Litvinenko VV Electric equipment of VAZ cars. M. Patriot, 1990.

 2. US patent N 4055708, MKI H 01 M 10/48, publ. 10/25/77. (prototype).

Claims (1)

A battery status indicator device comprising a magnetically controlled contact and a magnetic float, characterized in that the magnetically controlled contact is located in a capsule that is fixed in the battery plug and its lower end is fixed at the level of the separator, and the magnetic float is ring-shaped and its weight is selected from the condition
P _popl = ρ _emin • V,
where ρ _emin is the extremely low density of the electrolyte corresponding to the permissible degree of discharge of the battery;
V volume of the float.