RU210618U1 - BATTERY OF ELECTROCHEMICAL CAPACITORS - Google Patents

Abstract

The utility model relates to electrical engineering, namely to electrochemical capacitors and batteries based on them, intended for electric vehicles. The technical result of the utility model is to increase the reliability of the battery in peak power modes, which is ensured by the fact that the block of electrochemical capacitors includes a battery case with electrically connected electrochemical capacitors, fastened by a shell and a spring, made of prismatic, polymeric material, located in one or more rows, the battery case contains side ribs made of channels, on the side surfaces the side ribs are connected by metal strips, on the end surfaces the side ribs are connected by channels with bolted connections in their lower and upper parts, the case is equipped with upper and lower shelves, a top cover and a partition, on In the channel of the upper part of the side surface, a block of two terminals is fixed in the form of plates made of dielectric material with metal plates and contact bolts, on which the terminals of the switching cables of electrochemical capacitors are fixed, while m electrochemical capacitors are located on the upper and lower shelves of the housing made of dielectric material and are connected in six parallel circuits, each of which consists of forty electrochemical capacitors connected in series. 4 ill.

Description

The utility model relates to electrical engineering, namely to electrochemical capacitors and batteries based on them, intended for electric vehicles.

Known module of electrochemical capacitors (ECC) (Patent RU No. 96444, published 07/27/2010, IPC H01G 9/04), containing a housing with current leads, a set of ECC, including at least two ECC placed in the housing and electrically connected by jumpers between itself and with current leads, an ECC preload device containing a spring and a plate from the ECC side, pulled together with a metal tape. In this case, the ECC, the preload spring and the plate are placed in a common clamp, which can be used as the module case.

The disadvantage of this technical solution is the impossibility of performing this design in the case of increased battery power.

Known battery of electrochemical capacitors (RU No. 2308111 published 10.12.2005 IPC H01G 9/00, taken as a prototype), including a battery case, a capacitor case, positive and negative current leads, a cooling system, a temperature control device and at least two electrically connected a capacitor, each of which contains a capacitor case, an aqueous electrolyte located in it, a polarizable electrode made of activated carbon material, and a non-polarizable electrode containing a material that electrochemically reversibly operates in an aqueous electrolyte medium. The battery is equipped with a capacitor compression device, each capacitor housing is made of a prismatic polymer material, and they are arranged in one or more rows, and the cooling system consists of heat-removing plates, such as radiators, and a coolant distribution device in contact with them with a coolant supply and removal mechanism. The case of the battery that fastens the capacitors is made in the form of a collar made of polymeric material or metal with a protective coating.

The disadvantage of the prototype is the impossibility of performing this design in the case of increased battery power, as well as the lack of control and diagnostics of individual battery cells.

The problem of developing batteries of electrochemical capacitors is the development of such a layout of individual battery cells that would ensure trouble-free operation of the battery of electrochemical capacitors in peak power mode.

The technical result of the utility model is to ensure the reliability of the battery in peak power modes.

The specified technical result is provided by the proposed design of the battery of electrochemical capacitors. The battery of electrochemical capacitors includes a battery case with electrically connected electrochemical capacitors, fastened by a shell and a spring, made of prismatic, made of polymeric material, arranged in one or more rows, and the battery case contains side ribs made of channels, on the side surfaces the side ribs are connected by metal strips , along the end surfaces, the side ribs are connected by channels with bolted connections in their lower and upper parts, the body is equipped with upper and lower shelves and a top cover, a block of two terminals in the form of plates of dielectric material with metal plates and contact bolts is fixed on the channel of the upper part of the side surface , on which the terminals of the switching cables of electrochemical capacitors are fixed, electrochemical capacitors are located on the upper and lower shelves of the housing made of dielectric material and are switched into six parallel circuits, each of which which consists of forty electrochemical capacitors connected in series.

The implementation of the battery case with side ribs from the channel increases the stability of the structure to vibrations and inertial loads of the horizontal direction, and also serves to quickly and efficiently remove heat generated during battery operation, which prevents failure due to overheating and mechanical destruction. The bolted connection of the channels of the end faces allows you to adjust the device for preloading the battery capacitors, which prevents battery failure due to a change in the preload of the electrodes. The top cover of the housing protects the capacitors of the upper shelf from short circuit due to external influence, leading to the destruction of the battery from excess discharge currents. The location of the capacitors on two shelves of the case provides similar dimensions of the battery in length, width and height, which also increases its mechanical stability, improves heat dissipation and does not create the need to use long switching elements that create a risk of short circuit. The gaps in the side walls of the case improve the ventilation of the internal space of the battery, which also contributes to the natural heat dissipation. The shelves are made of dielectric material to prevent their corrosion if small amounts of electrolyte can get on the shelf, and also reduces the risk of a short circuit if the jumpers of the capacitors of the lower shelf accidentally touch the bottom of the upper shelf. Switching capacitors in six parallel circuits of forty series-connected capacitors provides a maximum battery current of 150-200 A at a voltage of 30-60 V, which ensures peak power mode. Output of switching parallel circuits to two external terminals increases the resistance of switching to overheating and accidental ingress of electrolyte drops. If necessary, the leads of the terminal elements of the parallel circuits can be disconnected from the terminal and checked and/or charged in the event of a battery imbalance in capacity, which increases the battery life. The connection of the electrochemical capacitors of the battery with the help of a shell and a spring fixes the position of the capacitors and eliminates the risk of rupture of the connecting borons with a possible increase in the volume of the cases during charging due to gas evolution.

Thus, the combination of essential features of the utility model allows to achieve the claimed technical result, improving the reliability of the battery.

The essence of the utility model is illustrated by drawings.

In FIG. 1 shows a front view of a battery of electrochemical capacitors.

In FIG. 2 shows a side view of a battery of electrochemical capacitors.

In FIG. 3 shows the electrical circuit of a battery of electrochemical capacitors.

In FIG. 4 shows a top view of a battery of electrochemical capacitors

1 - electrochemical capacitor

2 - shell

3 - side ribs of the body

4 - spring

5 - switching jumper

6 - terminals in the form of plates of dielectric material

7 - channel of the lower part of the end face

8 - upper shelf of the case

9 - top case cover

10 - contact bolts

11 - metal plates

12 - partition

13 - channel of the upper part of the end face

14 - lower shelf of the case

15 - metal strips

16 - block of two terminals

17 - cables for switching electrochemical capacitors

18 - circuit of electrochemical capacitors

19 - bolted connections of channels of end faces 13 with side ribs 3

The battery of electrochemical capacitors includes a battery case containing side ribs 3 made of channels, along the side surfaces the side ribs are connected by metal strips, along the end surfaces the side ribs are connected in the upper part of the end face by channels 13, and in the lower part of the end face by channels 7 using bolted connections 19, the case is equipped with upper 8 and lower 14 shelves, the upper and lower tiers of the battery are closed with a cover 9 and a partition 12, a block 16 of two terminals in the form of plates of dielectric material 6 with metal plates 11 and contact bolts 10, on which the terminals of switching cables 17 of electrochemical capacitors 1 are fixed, electrochemical capacitors 1 are located on the upper 8 and lower 14 shelves of the housing made of dielectric material and are connected into six parallel circuits 18, each of which consists of forty electrochemical capacitors connected in series sators 1.

The battery of electrochemical capacitors works as follows. Electrochemical capacitors 1 are placed on the shelves of the housing 8 and 14, springs 4 and shell 2 are installed on them, the connection is strengthened by tightening the bolts of the channels 7 and 13, switching jumpers 5 are installed connecting the series-connected capacitors 1, the extreme points of the series circuits are connected to the positive and negative current output terminals 6 using a patch cable, install the top cover of the housing 9 and the assembled battery is installed in the seat of the vehicle. The positive and negative current leads of the battery are connected to the terminals of the charger and charge is carried out for 5-6 minutes with a current of 100-150 A. The charger is disconnected and the consumer's terminals are connected. If it is found that the battery voltage does not correspond to the operating voltage range of 30-60 V, the parallel circuits are checked by disconnecting them from the terminals 6 by charging them. If, during the charging process, drops of electrolyte begin to be released from the capacitors 1, they do not fall on the terminals 6, which are placed outside the internal volume of the battery. When the capacitors of the battery 1 are heated during charging or discharging, the generated heat is dissipated by the channels of the side ribs 3, as well as through the gaps between the metal strips 11. Horizontal displacements of the capacitors are excluded by the channels of the end part 7 and 13, the shell 2 and the spring 4. jumpers 5 due to a possible increase in the volume of capacitors 1.

Thus, the combination of essential features of the utility model allows to achieve the claimed technical result, improving the reliability of the battery. The claimed technical result allows solving the problem of developing batteries of electrochemical capacitors that ensure trouble-free operation of a battery of electrochemical capacitors in peak power mode.

Claims (1)

The battery of electrochemical capacitors includes a battery case with electrically connected electrochemical capacitors, fastened by a shell and a spring, made of prismatic polymer material, arranged in one or more rows, characterized in that the battery case contains side ribs made of channels, side ribs along the side surfaces are connected by metal strips, on the end surfaces the side ribs are connected by channels with bolted connections in their lower and upper parts, the body is equipped with upper and lower shelves, a top cover and a partition, a block of two terminals in the form of plates of dielectric material is fixed on the channel of the upper part of the side surface metal plates and contact bolts, on which the terminals of cables for switching electrochemical capacitors are fixed, electrochemical capacitors are located on the upper and lower shelves of the housing made of dielectric material and are connected in six pairs allelic circuits, each of which consists of forty electrochemical capacitors connected in series.

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