A kind of power battery pack device
Technical field
The utility model relates to a kind of new-energy automobile electrical source of power device, especially a kind of power battery pack device of bus.
Background technology
The power battery pack device that electric bus is common, the cabinet shell of as a whole mould punching or integral bending assembling welding, battery pack and periphery components and parts are placed in this casing.For maintaining reliable running status, no matter be for upgrading or overhauling or the object of data acquisition, all need the cabinet shell opening battery apparatus frequently, thus require that it has the convenience easily opened, and existing power battery pack device unlatching cabinet shell is wasted time and energy; Bus space is narrow, be used by space-saving as far as possible, in order to arrange the battery of multicapacity as far as possible, and also needs the space of reserved placing box body case when existing power battery pack device opens cabinet shell, is obviously unfavorable for utilizing space.
Chinese patent literature " universal battery case ", its notification number CN101118957A, disclose a kind of universal battery case for motor vehicle, comprise outer case and internal box, described outer case can be formed with described motor vehicle and be electrically connected and be mechanically connected, and described internal box is slidably arranged in described outer case.Wherein said internal box comprises three independently modules, and respectively: battery housing modules, battery is received within described battery housing modules; Plug-in module, the battery in described battery housing modules is connected to described outer case conductively by described plug-in module; And accessory module, be wherein provided with the battery management system of the operating state for monitoring the battery in described battery housing modules.The heavy volume of battery weight of electric bus is large, is not easy as designed in the program, rely on manpower pull as drawer out, cannot realize the effect opening battery-pack exterior casing fast.Inside and outside the program, two layer box bodies waste certain space simultaneously, cannot hold more battery to expand the operating range of car load in unit volume.
Summary of the invention
The utility model technical issues that need to address are, existing battery-pack exterior casing is not quick detachable, inconvenient frequent maintenance, thus provide one to maintain easily, the power battery pack device that space availability ratio is high, to be applicable on battery-driven big bus.
To achieve these goals, the utility model adopts following technical scheme: a kind of power battery pack device, comprise a battery pack support and be located at several battery modules in battery pack support, described battery pack support is rectangular structure, and each face has been bolted removable panel to battery pack support; One of them panel is provided with power supply discharge and recharge connector base; One of them panel is provided with battery main switch; One of them panel is provided with fresh air inlet, and another panel is provided with exhaust vent.
This programme devises one for the mixed battery pack support moving or pure electric bus uses of oil electricity, battery pack support is made up of crisscross crossbeam, longeron, column, battery module to be placed on crossbeam and be fixed by bolts to its near crossbeam, longeron, on column.In order to better adapt to the carrying placement space on bus, battery pack support is rectangular structure, each face has been bolted panel, panel is detachable, when need repairing operation time, only need the panel unloading respective regions just passable, without the need to power battery pack device entirety is pulled down operation.This programme is not considered to be taken out in battery pack support by battery module frequently, but be fixed on battery pack support for a long time, so without the need to putting into action headspace for the taking-up of battery module, layout in device can be compacter, the battery total capacity that same space can be arranged is more, bus can be driven to travel longer distance, be conducive to propulsion energy-saving and reduce discharging.For the ease of repair and maintenance, power supply discharge and recharge connector base, battery main switch are all integrated on panel by this power battery pack device, to pining down by external connection line cable when the dependence of outside connection cable, maintenance when avoiding use.Panel is established respectively fresh air inlet and exhaust vent are to form effective gas channel in power battery pack device inside, the heat loss produced when allowing battery module work.
As preferably, described panel is put together by two or three unit, and two adjacent unit are hinged.This power battery pack device is loaded on bus, and accommodation space is nervous, also very narrow for overhauling reserved space.For this reason, the panel designs of battery pack support is two or three unit by this programme, and two adjacent unit are radial types, thus one of them unit can be allowed to rotate around hinged axle, forms folding state.Need overhaul time only need to open necessary part panel zone and without the need to whole panel is unloaded, on the other hand, the space taken required for opened portion subpanel is far smaller than whole panel, very helpful to conserve space, indirectly also can abdicate more space to arrange more battery pack, be conducive to the operating range extending Vehicular battery drive pattern.
As preferably, described fresh air inlet and exhaust vent lay respectively on two relative panels, and the horizontal level of exhaust vent is higher than the horizontal level of fresh air inlet.According to the principle that hot-air rising cold air declines, overflowed from the exhaust vent being positioned at higher horizontal level by the warmed-up hot-air of battery module, what supplement into is then the cold air flowed into by the fresh air inlet of the position that remains at low levels, and battery module can better be helped to dispel the heat.
As further preferred, described exhaust vent is provided with fan.Electrokinetic cell can produce more heat when discharge and recharge, and gathering of heat easily causes battery to cross cause thermal damage, and serious meeting causes the perils such as battery spontaneous combustion, blast.Significantly can improve air velocity in gas channel for exhaust vent installs fan additional, the effect taking away heat will be far longer than passive heat radiation.
As further preferred, described fresh air inlet is connected with the blast pipe for connecting automobile air conditioning system cold wind mouth.This power battery pack device is used on big bus, so can make full use of the refrigerating capacity of on-board air conditioner, for battery module provides more powerful cooling effect.
As preferably, described battery main switch is provided with overload protection arrangement.The charging and discharging currents of battery can not exceed rated current too greatly too for a long time, otherwise both has potential safety hazard, greatly reduces again the life-span of battery; Or when occurring that circuit is unexpected and form short circuit, electric current can become very large instantaneously, battery to be punctured or electric shock person causes injures and deaths.Therefore battery main switch is necessary integrated overload protection arrangement.
As further preferred, described overload protection arrangement is fuse.The simple and reliable volume of fuse is little, is adapted at battery-driven bus uses.
As preferably, described power battery pack device is also provided with monitoring module, and described monitoring module is fixed on battery pack support, is electrically connected with battery module, and is connected with pilot signal cable; Described panel is provided with accordingly a pilot signal cable special hole; Pilot signal cable passes in pilot signal cable special hole; The other end of pilot signal cable is provided with connector.Also effectively can monitor battery module and whole power battery pack device for ease of not openable panel, this device is also configured with monitoring module, monitoring module has special signal output cable, pass from the special hole of panel, connector is arranged in the other end end of cable, convenient disconnection or connection, thus make preservation & testing more convenient.
In sum, the beneficial effects of the utility model are: panel is quick detachable, maintain easily detection, spaces compact, and specific capacity is large.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Wherein: 1 battery module, 2 battery pack supports, 21 crossbeams, 22 longerons, 23 columns, 24 panels, 3 power supply discharge and recharge connector bases, 4 fans, 5 battery main switches, 6 pilot signal cables, 7 pilot signal cable special hole, 8 hangers, 9 panel handles, 10 bolts hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
In embodiment as shown in Figure 1, a kind of power battery pack device on oil electric mixed dynamic or pure electric bus, has a rectangular battery pack support 2, connected to each other by some crossbeams 21, longeron 22 and column 23.Battery pack support needs the weight carrying battery module on the one hand, need the intensity keeping support entirety on the one hand, structurally for whole power battery pack device provides necessary protective action, so the crossbeam of this example, longeron, column select channel-section steel and angle steel, be welded into battery pack support.The battery module 1 of this example has 4, to be all placed on crossbeam and be fixed by bolts to its near crossbeam, longeron, on column; Electrical connection is realized with cable between battery module; Battery pack support has 6 faces, and wherein downwards the crossbeam of one side and longeron are provided with several bolts hole 10, and be fixed by bolts on bus boot chassis, all the other five faces are provided with panel 24, and panel is bolted on crossbeam, longeron and column.Bolt can be plain bolt, relies on manually or electric tool dismounting, also hand can be used to twist bolt as this example, does not rely on instrument just energy fast assembling-disassembling.
Open for convenience to carry out maintenance test operation, panel is folding, and adjacent two sections hinged.Can be set to horizontal folding or longitudinal folding as required, two sections can be folded or three sections even more, this foldable structure can be set on the panel be necessary arbitrarily.The right panel towards bus boot opening direction of this routine power battery pack device is the panel the most often opened, and this panel is laterally divided into three unit, is twisted and is bolted on corresponding cross beam and upright post, each unit 8 by 24 hands.Two adjacent unit are hinged by jointed shaft, the unit being in two ends can rotate around the jointed shaft at place, the unit mediated also can unload bolt when the unit of side is in free state, with this freely unit rotate around the jointed shaft of opposite side, thus make whole panel formed folded state.This panel is integrated with battery main switch 5, in battery main switch, establishes air circuit and fuse, to play safeguard protection effect to circuit.
This power battery pack device can arrange several battery modules as required, in order to ensure that each battery module can come out so that preservation & testing after opening suitable panel, the all outer welt veneer of each battery module is laid, at least with some panels inside and outside adjacent.This example is 4 battery modules, is divided into two-layer up and down, about every layer each 1, each battery module all with at least one panel inside and outside adjacent.
The front panel of the left end of the power battery pack device of this example from top to bottom longitudinal arrangement is provided with three exhaust vents, each hole is provided with the fan 4 of an exhausting, the rear board being in device right-hand member is provided with a fresh air inlet, this fresh air inlet is connected with blast pipe, and the air-conditioning cold wind that blast pipe then connects bus goes out; Exhaust vent on front panel horizontal level all higher than the fresh air inlet on rear board.Also can set out air holes on some panels, this exhaust vent establishes fan, and other panels offer fresh air inlet as required; Or certain two panel establishes fresh air inlet and exhaust vent respectively, all establish fan, the blowing of an exhausting forms gas channel; Battery-heating is not serious, even only needs on panel, offer abundant fresh air inlet and exhaust vent carries out passive heat radiation, as long as can to the battery module effective temperature-reducing of work.
This power battery pack device is also provided with monitoring module, monitoring module is fixed by bolts on battery pack support equally, and be electrically connected with battery module, pilot signal is passed by pilot signal cable 6, front panel is provided with accordingly a pilot signal cable special hole 7, pilot signal cable passes in hole thus; The other end of pilot signal cable is equipped with connector, facilitates grafting and disconnection.
4 power supply discharge and recharge connector bases 3 of this power battery pack device are also integrated on front panel.
This power battery pack device is positioned on the column of corner at battery pack support and is respectively equipped with a hanger 8, and lifting during for being installed to first in bus boot by this device uses.
When the power battery pack device of this example is when normally using, on front panel, exhausting pattern opened by the fan of exhaust vent, extracted by the hot-air of inside, the fresh air inlet inflow of the cold wind of automobile air conditioning system from behind on plate simultaneously, endlessly by carry heat from battery module.Battery pack is undertaken charging or discharging by power supply discharge and recharge connector base, and monitoring module is passed by the monitor message of pilot signal cable by battery module simultaneously, and battery main switch carries out safe current-limiting protection to electric current at any time.When this example power battery pack device needs open right panel carry out preservation & testing time, master switch of first cutting off the electricity supply, then 8 hands backing out panel leading portion twist bolt, pull panel handle 9, just can open 1/3rd of panel; As not, then 8 hands can backing out stage casing again twist bolt, just can open 2/3rds of panel; 8 hands backing out back segment again twist bolt, just all can open panel.This routine power battery pack device is provided with 4 battery modules, upper and lower two-layer each 2, just can all come out in the side of 4 battery modules by the panel opening right side; If need to expose one of them to detect, then only need the hand backed out on the unit of relevant position panel to twist bolt, the panel opening this unit is just passable, more time saving and energy saving.Because the part opened is that segmentation folds, take up room very little, convenient working.