ES2744395A1 - VEHICLE BATTERY RECHARGE INSTALLATION (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Installation of recharging batteries (1) of electric vehicles comprising a power strip (2) of outlets (2a) to connect chargers (3) to a power supply (4), a force box (5) interconnected between the source supply (4) and the outlets (2a), a fire extinguishing system with a source of extinguishing gas (6) connected by a gas line (7) to at least one gas outlet (8), a fire panel (9) with at least one smoke detector (10) at least one fire alarm warning device (11), a gas outlet activating device (12) connected to the gas source (6), a closed enclosure (13), and an air conditioning device (14, 14a, 14b) to keep the enclosure closed (13) between 18 and 22ºC, with the terminal strip (2), each outlet nozzle (8) and each detector fumes (10) arranged in the enclosure (13), and the force box, (5) being the gas source (6) and the device ac tivator (12) arranged outside the enclosure (13). (Machine-translation by Google Translate, not legally binding)

Description

VEHICLE BATTERY RECHARGE INSTALLATION

TECHNICAL FIELD OF THE INVENTION

The present invention pertains to the technical field of rechargeable battery charging systems for electric vehicles, such as motorcycles and electric bicycles.

STATE OF THE PRIOR ART OF THE INVENTION

Electric rental vehicles, such as motorcycles and elective rental bicycles, are becoming increasingly popular, especially in cities. The rental companies of such vehicles have fleets that must be maintained so that they are available to the users of the vehicles in perfect condition. The batteries are removable to be easily replaceable. One of the most relevant conditions is that the batteries of electric vehicles are in a state of sufficient charge to ensure that users can travel a minimum of kilometers endorsed by the fleet owner.

To guarantee the condition of sufficient state of charge of the batteries of the electric vehicles of their fleet, the companies have workshops in which they connect the batteries in need of recharging to chargers. Exhausted batteries present in vehicles are replaced by recharged batteries in the workshops.

A conventional vehicle battery recharge facility typically comprises a power strip for connecting a plurality of chargers to a power source, an interconnected force box between the power source and the power outlets, as well as a fire extinguishing system. fires comprising a source of extinguishing gas connected by a gas line to at least one extinguishing gas outlet nozzle. In addition, the installation may comprise a fire panel comprising at least one fire detector, at least one fire alarm warning device, and an extinguishing gas output activating device connected to the extinguishing gas source, During the charging process, the battery chargers and the batteries themselves heat up and dissipate a large amount of heat energy to their environment by heating it and causing the surrounding temperature to warm beyond the optimum charging temperature, 18 to 22 ° C. The process of charging the batteries, especially lithium batteries, may imply the potential risk that the batteries could catch fire, which, apart from endangering the physical integrity of the people in the workshop, would cause significant economic losses. due to the partial or even total combustion of the batteries, of the chargers or objects that are in their environment, before the fire could be extinguished by the use of conventional extinguishing equipment.

DESCRIPTION OF THE INVENTION

The present invention aims at overcoming the problems of conventional battery recharging installations of electric vehicles, by means of a battery recharging installation of electric vehicles comprising a plurality of outlets for connecting a plurality of chargers to a power source, a force panel interconnected between the power supply and the outlets, and a fire extinguishing system comprising a source of extinguishing gas connected by a gas line to at least one outlet nozzle of extinguishing gas, and a central fires comprising at least one fire detector at least one fire alarm warning device, an extinguishing gas activating device connected to the extinguishing gas source, characterized in that

the installation comprises a closed enclosure delimited by side walls, a roof and a floor;

at least one of the side walls is provided with a fireproof access door;

the plurality of outlets, each gas outlet nozzle and each fire detector are arranged in the enclosure;

the force box, the source of extinguishing gas and the activating device are arranged outside the enclosure,

The installation also includes an air conditioning device that allows the enclosure to be kept at a temperature between 15 and 25 ° C, preferably between 18 and 22 ° C.

With this installation, the temperature can be effectively maintained within the optimum temperature range for charging electric vehicle batteries, particularly lithium batteries, and in addition, by being provided preventively with an automatic means of extinction and unattended suffocation, in Instead of the use of conventional fire extinguisher equipment operated by personnel, it has a means that effectively prevents the risks arising from potential fires.

At least a part of the outlets may be included in a strip of outlets.

Fire detectors are preferably smoke detectors, such as optical smoke detectors.

The air conditioning device may be a split air conditioner comprising an indoor unit disposed inside the enclosed enclosure connected to an outdoor unit disposed outside the enclosed enclosure.

Preferably, the extinguishing gas is at least one inert gas, such as a respirable mixture of nitrogen and argon that preferably comprises equal volume parts of nitrogen and argon. The source of extinguishing gas can be a bottle of extinguishing gas.

In accordance with the invention, the installation may comprise at least one horizontal loader-holder tray arranged in one of the vertical walls that delimit the enclosed area. This horizontal tray is sized so that they can be placed in it, conventional battery chargers themselves. Preferably, the horizontal tray is configured as a metal rack basket. This makes it easier for the heat generated by the chargers during the charging process to dissipate into the enclosure of the installation.

On the other hand, the outlet strip can be a horizontal strip arranged in one of the vertical walls that delimit the enclosure.

In one embodiment of the invention, the horizontal tray is arranged in a first horizontal strip inferior to a second horizontal strip in which the horizontal strip is arranged, the horizontal tray and the strip being arranged in the same vertical wall.

In one embodiment of the enclosure, at least one of the side walls that delimit the enclosure is not a wall of a wall of a pre-existing building, while in another embodiment two of the side walls that delimit the enclosure are parts of walls , for example walls that converge in a corner, of a pre-existing building. Preferably, the closed enclosure is an interior space of a booth arranged in a pre-existing building.

BRIEF DESCRIPTION OF THE FIGURES

Ways of carrying out the invention will be described below on the basis of schematic drawings that form an integral part of the present specification, in which

the figure is a front perspective view of an embodiment of the installation according to the invention;

Figure 2 is a simplified block diagram of an embodiment of the electrical part of the installation according to the invention;

Figure 3 is a top plan view of the section along the line A-A that appears in Figure 1;

Figure 4 is an internal elevational view of the rear vertical wall of the installation enclosure corresponding to Figure 1;

Figure 5 is a perspective view of an embodiment of the horizontal loader tray of the installation according to the invention;

Figures 6 and 7 are views respectively in front and side elevation of an example of a conventional battery charger that can be used in the installation according to the invention;

Figures 8 and 9 are respectively front elevation and top plan views of an example of a vehicle battery that can be recharged in the installation according to the invention;

Figure 10 is a partial internal elevation view towards the rear vertical wall of the installation enclosure corresponding to Figure 1.

These figures show reference signs that identify the following elements:

1 battery

1st charging cable

1b male connector

1c Female Connector

1d handle

2 Strip

2nd Outlets

3 Charger

3rd network connection cable

3b male connector

3c Female Connector

3d Air outlet

3e Pilot control light

3g Side part

3h Front face

3i Rear face

4 Power supply

5 Strength box

6 Source of extinguishing gas

7 Driving of extinguishing gas

8 Outlet nozzle

9 Fire station

10 Fire detector

11a Acoustic alarm device

11b Optical alarm device

12 Activating device

12th solenoid valve

13 Enclosure closed

13th vertical wall

13b Roof

13c Floor

14 Air conditioning device

14a Indoor Unit

14b outdoor unit

15 Horizontal tray

16 Wall

17 Access door

18 Booth

19 Manual push button

20 hollow tube

21, 22 registration box

EMBODIMENTS OF THE INVENTION

In the embodiment it can be seen in figures 1, 3 and 4, the installation comprises a house -18- in the form of a parallelepiped with vertical walls -13a-, a roof -13b- and a floor -13c- that delimit one another closed enclosure -13- interior. Two of the vertical walls -13a-, namely the left side vertical wall and the rear vertical wall, are parts of walls -16- of a pre-existing building (not illustrated in the figures), such as for example an industrial building. Also, the floor -3c- of the house -18- is made up of the floor of the pre-existing building.

The vertical walls -13a- and the ceiling -13b- can be made of a fire-retardant material, for example of plasterboard plates of the Pladur type or of sandwich panels. The vertical walls -13a-, the ceiling -13b- and the floor -13c- that delimit the closed enclosure -13- can be additionally covered with a lining flame retardant In the embodiment illustrated in the figures, the enclosure -13- has a volume of approximately 30 m3.

The vertical wall -13a- front is provided with an access door -17- of fire-resistant steel (= RF steel) of double wing that is wide enough to allow the passage of a standard European pallet with a width of 1200 mm .

Outside the front vertical wall -13a-, specifically in this case to the right of the access door -17-, there is an acoustic alarm device -11a- and a manual button -19- for activating the system Firefighting that will be described later. On the other hand, an optical alarm device -11b- is mounted on the exterior of the front vertical wall -13a- and above the access door -17-.

On the wall -16- that also forms the rear vertical wall of the house -18- the external unit -14b- and the internal unit -14a- of a split air conditioning device are mounted. The external unit -14b- is mounted on the wall -16- outside and above the roof -13c- of the house -18- while the indoor unit -14a- is mounted inside the house -18- .

On the outside of the house -18-, specifically on the wall -16- that also forms the left side vertical wall of the house -18-, they are mounted in respective conventional boxes themselves, a force box -5-, a fire station -9-, hollow tubes -20- through which electric cables extend (not illustrated in figures 1 and 3), registration boxes -21- and a gas line -7- connected to an activating device 12 - mounted on a bottle of extinguishing gas -6- located on the ground -13c- of the pre-existing building. A first section of the gas line -7- is also mounted on the outer surface of the vertical wall -13a- front of the house -18-. A second section of the gas line -7- penetrates through the front vertical wall -13a- and extends from the front vertical wall -13a- into the closed enclosure -13- connecting with a third perpendicular section in whose ends are two exit nozzles -8- of extinguishing gas.

In the force box -5- conventional circuit breakers and differentials of electricity and a thyristor capable of cutting the electric current are housed.

On the inner side of the rear vertical wall -13a-, in a horizontal plane located below the internal unit -14a- of the air conditioning device, a horizontal strip -2- of electrical outlets -2a- is mounted, and, in a horizontal plane inferior to that of the strip -2-, a horizontal tray -15- charger-holder is mounted in which the battery chargers (3) -1 are placed, which in turn are placed on the floor -3c- of the Enclosure -13- during recharge.

As can be seen in Figures 3, 4 and 10, the horizontal strip -2- is a conventional device that comprises a plurality of sockets -2a-, that is, female electrical connectors. On the other hand, figures 3, 4, 5 and 10 show that the horizontal tray -2- is configured as a metal grid basket. This configuration allows the dissipation of the heat generated by the chargers -3- during the recharging of the batteries -1- inside the enclosure -13-.

The batteries -1- are, in the embodiment illustrated in Figures 3, 6, 7 and 10, removable batteries of motorcycles or electric bicycles, for example 48 Vdc, if conventional rechargeable by the corresponding chargers -3- also themselves conventional.

In figures 6 and 7 it can be seen that this type of loaders -3- comprises a housing with a front face -3h-, a rear face -3- and side parts -3g-. On the front face -3h- there are two female connectors -3c-, air outlets -3d- of ventilation and pilot lights -3e- charging, while from the rear face -3- there is a connection cable to network -3a-. On the other hand, Figures 6 and 7 show in more detail that batteries -1- conventionally present a female connector -1c- and a handle -1d- upper.

For the charging process, the battery -1- is connected to the charger -3- by means of a charging cable -1a- provided at its ends with two male connectors -1b- that are respectively plugged into the female connector -3c- of the charger -3- and the female connector -1c- of the battery -1-, and the male connector -3b- of the charger -3- is plugged into one of the sockets -2a- of the terminal strip -2- (see figures 3 and 10).

The hollow tubes -20- carry the electrical cables that connect the source of power supply -4- with the force panel -5-, the force panel -20- with the fire panel -5-, the power strip -2- of the power outlet -2a-and with the units -14a, 14b- of the cordoned air device. They also carry the electrical cables that connect the fire panel -9-, the alarm aviators -11a, 11b-, the manual button -19- and the fire detectors -10-. Fire detectors -10- are preferably smoke detectors, such optical smoke detectors.

As Figure 2 illustrates, the force box -4- is connected to the power supply -4-, to the terminal strip -2-, to the fire station -9- and to the air conditioning device -14 -, so that the electric current from the power supply -4- can be carried to the strip -2- and to the air conditioning device -14-. In turn, the fire panel -9- is connected to the fire detectors -10-, the acoustic alarm device -11a-, the optical alarm device -11b., The activating device -12- comprising the solenoid valve -12a- connected to the extinguishing gas bottle -6-, and to the manual button -19- for activating the fire extinguishing system.

When one of the two fire detectors -10- detects a fire situation, or when a person presses the manual button -19- for activating the fire extinguishing system, a corresponding signal is sent to the fire panel -12- that It then activates the alarm devices -11a, 11b- and sends a power cut-off signal to the force panel -5- which, in response to the cut-off signal, cuts the power to the power strip -2- and to the air conditioning -14- , and also sends an activation signal to the activating device -12- which in response opens the solenoid valve -12a-.

When the solenoid valve -12a- is opened, the extinguishing gas that is under pressure in the extinguishing gas bottle -6- is expelled through the conduction of extinguishing gas -7- to the closed enclosure -7- by the nozzles of exit -8-, and displaces the air from the closed enclosure -13- so that there is no air left that is necessary for combustion in the enclosed enclosure -13- and the fire is suffocated.

The extinguishing gas bottle -6- contains about 80 liters of IG-55 gas, a mixture of inert argon and nitrogen gases. This amount is calculated to effectively quell fires in a closed enclosure of 30 m3.

Claims (16)

1. Installation of recharging batteries (1) of electric vehicles comprising a plurality of electrical outlets (2a) to connect a plurality of chargers (3) to a power source (4), a force box (5) interconnected between the power supply (4) and the outlets (2a), a fire extinguishing system comprising a source of extinguishing gas (6) connected by a gas line (7) to at least one outlet nozzle (8) of extinguishing gas, and a fire station (9) comprising the at least one fire detector (10) at least one fire alarm warning device (11), an activating device (12) for extinguishing gas (8) connected to the extinguishing gas source (6), characterized because the installation comprises a closed enclosure (13) delimited by side walls (13a), a roof (13b) and a floor (13c); at least one of the side walls (13a) is provided with a fireproof access door (14); the plurality of outlets (2a), each gas outlet nozzle (8) and each fire detector (10) are arranged in the enclosure (13); the force box, (5) the source of extinguishing gas (6) and the activating device (12) are arranged outside the enclosure (13), The installation also includes an air conditioning device (14, 14a, 14b) that allows the enclosure (13) to be kept at a temperature between 15 and 25 ° C, preferably between 18 and 22 ° C. 2. Recharge installation according to claim 1, characterized in that at least one fire detector (10) is a smoke detector. 3. Recharge installation according to claim 2, characterized in that the smoke detector is an optical smoke detector. 4. Recharging installation according to claim 1, 2 or 3, characterized in that the air conditioning device (14) is a split air conditioning unit comprising an indoor unit (14a) disposed inside the enclosure (13) connected to an outdoor unit (14b) arranged outside the enclosure (13). 5. Installation according to one of claims 1 to 4, characterized in that the source of extinguishing gas (6) is a bottle of extinguishing gas. 6. Installation according to one of claims 1 to 5, characterized in that the extinguishing gas is at least one inert gas. 7. Installation according to claim 6, characterized in that the extinguishing gas is a mixture of nitrogen and argon. 8. Installation according to claim 7, characterized in that the mixture comprises equal volume parts of nitrogen and argon. 9. Installation according to any one of claims 1 to 8, characterized in that at least a part of the outlets (2a) are comprised in a strip (2) of outlets (2a). 10. Installation according to claim 9, characterized in that the power strip (2) of outlets (2a) is a horizontal strip (2) arranged in one of the vertical walls (13a) that delimit the enclosure (13a). 11. Installation according to any one of claims 1 to 10, characterized in that it comprises at least one horizontal tray (15) loader holder arranged in one of the vertical walls (13a) that delimit the enclosed area. 12. Invention according to claim 10 and 11, characterized in that the horizontal tray (15) is arranged in a first horizontal strip inferior to a second horizontal strip in which the horizontal strip is arranged, the horizontal tray (15) and the strip (2) arranged in the same vertical wall (13a). 13. Installation according to any one of claims 10 to 12, characterized in that the horizontal tray (15) is configured as a metal rack basket. 14. Installation according to any one of claims 1 to 13, characterized because at least one of the side walls (13a) that delimit the enclosure (13) is not a wall of a wall of a pre-existing building. 15. Installation according to any one of claims 1 to 13, characterized in that two of the side walls (13a) that delimit the enclosure (13) are parts of walls (16) of a pre-existing building. 16. Installation according to any one of claims 1 to 15, characterized in that the enclosed area (13) is an interior space of a house (18) arranged in a pre-existing building.