RU2282916C1 - Doubled polar contact of accumulator battery for multi-purpose heavy-load vehicles - Google Patents

Abstract

FIELD: electric engineering, possible use for connecting two or more batteries in accordance to mixed serial-parallel circuit primarily on multi-purpose heavy-load vehicles.

SUBSTANCE: in accordance to invention, battery contains doubled polar output with branches with connection elements, one in form of bolt with groove on the end of head, projecting from branch material for value not less than 12 millimeters for positioning and fastening of unified end pieces of wires and fastening nut; second connection element in form of cantilever with lug with aperture, diameter of which is equal to diameter of first connection element, which is soldered to ribbed bushing, and size of flux is 8-10 millimeters for battery with discharge current up to 6 C₂₀. Doubled polar contact provides reliable electric contact with unified end pieces of launching and connecting wires, minimal laboriousness and comfort of connection of launching wire.

EFFECT: reliable electric contact with end pieces of launching and connecting wires during whole lifetime of battery.

1 tbl, 1 dwg

Description

The invention relates to the electrical industry and can be used to connect two or more batteries in a mixed series-parallel circuit on heavy multi-purpose vehicles.

Known pole findings for a bolt and cone according to GOST 959-2002.

In the bolt terminal, the connection element is the bracket and eye. The specified design of the output partially meets the operational requirements. At the same time, its significant drawback is the frequent breakdown of the eye, especially in the cold season with high current loads and the repeated connection of two or more wires with a cross section of 70 mm ^{2 to it} .

The disadvantages of the cone outlet are the difficulty in ensuring reliable (tight) contact between the terminals and the tip, it is difficult to disconnect the starter wire due to the seizure (intermolecular coupling) of the cone terminal and the tip by corrosion and oxidation products, as well as the inability to connect several terminals on one of the pole terminals with the purpose of the necessary increase in capacity or voltage of the energy source.

The closest to the claimed technical solution for the combination of essential features is a dual pole terminal of the battery according to US patent No. 4645725, H 01 M 2/30. In this technical solution, the pole output is made in the form of a ribbed sleeve, on the side surface of which there are two branches equipped with elements for connecting to the ends of the wires from adjacent batteries. Moreover, one branch has an accession element under the cone, the other branch has an accession element in the form of a special nut recessed in the body of the branch. Pole cone outlet does not meet reliability requirements for heavy vehicles. The disadvantages of the cone attachment member are described above.

The disadvantage of the second branch is also that the nut pressed into lead, which is a soft metal, can undergo mechanical rotation when tightening the terminals and will not provide sufficient contact with the lead branch. Such a design of the connection elements does not allow for the unification of the design of the terminals of the wires of the external circuit and wires for series and parallel connection of batteries on heavy multi-purpose machines.

The purpose of the proposed technical solution is to ensure the reliability of current collection over the entire battery life on heavy multi-purpose machines by dividing the current load into connection elements and eliminating the aforementioned disadvantages of the pole terminals, which is achieved by the fact that in the proposed design the double pole terminal consists of two connection elements .

One connection element is made in the form of a ribbed sleeve with a bolt pressed into it. The bolt has a groove on the end of the head, which will prevent it from turning in lead under mechanical loads and protrudes from the cover material by at least 12 mm to place and fix on it standardized tips with wires and a fixing nut.

The second connection element is made in the form of a bracket with an eye with an opening whose diameter is equal to the diameter of the bolt of the first connection element. The connection element is soldered to the ribbed sleeve. The size of the melt of the sleeve with the connection element is 8-10 mm for batteries with a discharge current of up to 6С ₂₀ , where С ₂₀ is the nominal battery capacity in ampere-hours at a 20-hour discharge mode. Then it is attached to the cover body with a screw and nut pressed into the battery cover material.

The advantage of the proposed technical solution is the presence of an eye with a hole whose diameter is equal to the diameter of the bolt in the connection elements allows the use of standardized tips of the starting and connecting wires for reliable and convenient parallel-serial connection of batteries without damaging the pole terminal over the entire battery life. The length of the wires is reduced by 30%, which reduces the consumption of insulating and conductive materials. Minimum labor input is provided when connecting and disconnecting the starting wire;

Verification of the estimated parameters of the proposed dual pole output in the composition of the battery 6TSTS-100A was carried out in bench conditions under external mechanical stress.

The verification results are shown in the table and confirmed the reliability of the claimed design of the dual pole output and guaranteed current collection.

Table
Checking the estimated parameters of the dual pole output under external mechanical stress Battery 6TSTS-100A,
sample numbers Type of test, mode
test TU requirements Test Results Assessment of appearance
Current
discharge
Unit C ₂₀ Final voltage, V Discharge time, min Discharge current
Unit C ₂₀ Final voltage, V Discharge time, min one 2 3 four 5 6 7 8 9 one
2
3 Multiple strike
- peak shock acceleration, g - 15
- duration of action, ms - 20 6 9.0 3.0 6 9.0 3.53; 3.70; 3.80 Damage and destruction were not noted. No electrolyte detected four
5
6 Vibration resistance
- acceleration, g - 10
- frequency range, Hz - 10-500 6 9.0 3.0 6 9.0 3.77; 3.47; 3.60 Also 7
8
9 Single action strike
- peak shock acceleration, g - 150
- duration of action, ms - 1-5 6 9.0 3.0 6 9.0 4.0; 4.2; 4.0 Also

A detailed description of the proposed technical solution is given in the drawing.

A dual pole terminal of two connection elements (2 and 7) is proposed, in which the connection element (2) is made in the form of a ribbed sleeve (1) and a bolt (3) pressed into it, which has a groove (5) on the end of the head to protect it from cranking. The bolt protrudes from the cover body to a height of at least 12 mm to connect the tip (4) and nut (6).

The connection element (7) in the form of a bracket with an eye has an opening (8) with a diameter equal to the diameter of the bolt (3), and an opening (10) for connecting to the sleeve (1), which ensures the unification of the tips (4 and 9).

The connection element (7) is connected by soldering to the ribbed sleeve (1). The size of the melt (11) is 8-10 mm for batteries with discharge current up to 6C ₂₀ .

The connection element (7) has a protrusion with a hole (12) for the screw (13) for fastening with a fastening nut (14) pressed into the material of the battery cover (15).

Information sources

1. Chemical current sources. Handbook / Edited by N.V. Korovin, M., MPEI Publishing House, 2003.

2. GOST 959-2002, IPK Standards Publishing House, 07/01/03

3. US Patent No. 46455725, cl. H 01 M 2/30 (prototype).

Claims (1)

A double pole battery terminal with two taps with connection elements, characterized in that one connection element is made in the form of a ribbed sleeve with a bolt pressed into it, which has a groove at the end of the head and protrudes from the cover material by at least 12 mm for placement and fixing unified wire lugs and fixing nuts, the second connection element is made in the form of a bracket with an eye with an opening whose diameter is equal to the diameter of the bolt of the first connection element, and the method is connected ohm soldering, and the melt size is 8-10 mm for batteries with discharge current up to 6C ₂₀ .