CN207021709U - A kind of new energy car battery monitoring management apparatus - Google Patents

Abstract

The utility model discloses a kind of new energy car battery monitoring management apparatus, including battery case, battery case upper end is provided with closure, battery box cavity places multigroup automobile storage battery, battery case bottom sets thermovent, heat sink is provided with the inside of thermovent, battery box outer wall is provided with control box, control box is provided with CAN interface, temperature sensor is fixedly installed on automobile storage battery outer wall, closure is provided with power output end, automobile storage battery output end is electrically connected with power output end, power output end connects voltage/current collector and controlling switch, the utility model structural principle is simple, the working condition of battery can effectively be monitored, once breaking down being capable of timely deenergization, also there is short-circuit protection function simultaneously.

Description

A kind of new energy car battery monitoring management apparatus

Technical field

New energy car battery monitoring technology field is the utility model is related to, specially a kind of new energy car battery monitoring Managing device.

Background technology

New-energy automobile refer in addition to gasoline, diesel engine all other energy automobile include fuel cell car, Hybrid vehicle, hydrogen-powered vehicles and solar telephone etc..Its discharge amount of exhaust gas is than relatively low.According to incompletely statistics, entirely Existing more than 4,000,000 liquefied petroleum gas automobiles in the world, more than 100 ten thousand gas-fueled vehicles.It is on sale new in Chinese market at present Energy automobile is mostly hybrid vehicle and pure electric automobile.

The increase in automobile batteries life-span can undoubtedly mitigate the pressure to environment.How automobile batteries is made in rational discharge and recharge Under state, battery service life is lifted, and reduces unnecessary the exporting of battery and shows more and more important.Battery management system Introducing can be such that conventional battery is chronically under very rational charging and discharging state, can be good at being lifted the use of battery Life-span.

Utility model content

The purpose of this utility model is to provide a kind of new energy car battery monitoring management apparatus, to solve above-mentioned background The problem of being proposed in technology.

To achieve the above object, the utility model provides following technical scheme：A kind of new energy car battery monitoring management Device, including battery case, the battery case upper end are provided with closure, and the battery box cavity places multigroup automobile storage battery, institute State battery case bottom and thermovent is set, be provided with heat sink on the inside of the thermovent, the battery box outer wall is provided with control box, institute State control box and be provided with CAN interface, be fixedly installed temperature sensor on the automobile storage battery outer wall, on the closure Provided with power output end, the automobile storage battery output end is electrically connected with power output end, the power output end connection electricity Pressure/current collector and controlling switch；

CPU, electrical parameter signal acquisition module, short circuit protection module and CAN interface module are provided with the control box, it is described CPU difference electrical parameters signal acquisition module, short circuit protection module, controlling switch, the electrical parameter signal acquisition module connect respectively Voltage/current collector, temperature sensor are connect, the CPU connects host computer by CAN interface module.

Preferably, the short circuit protection module includes operational amplifier, triode and field-effect transistor, and the computing is put Big device electrode input end connects diode A negative poles, resistance D one end, electric capacity A one end and resistance C one end, negative input point respectively Not Lian Jie resistance A one end and resistance B one end, output end connects the resistance B other ends, diode B negative poles, triode emission respectively Pole, the resistance D other ends, the electric capacity A other ends are grounded, and the transistor collector connects the resistance C other ends, base stage connection Resistance F one end, described field effect transistor gate connection resistance E one end, resistance E other ends connection diode B positive poles, the field Effect transistor drain electrode connects resistance G one end, electric capacity B one end and is grounded respectively, and the electric capacity 2c other ends connect resistance F and electricity respectively Hinder the node between G.

Preferably, the controlling switch includes the first NMOS tube and the second NMOS tube, the first NMOS tube drain electrode and the The drain electrode of two NMOS tubes is connected, and the source electrode of first NMOS tube is connected with load negative pole, the first NMOS tube grid It is connected with the second NMOS tube grid with CPU.

Preferably, the voltage/current collector founds permanent KT2 current and voltage datas signal isolation collector using section.

Compared with prior art, the beneficial effects of the utility model are：

（1）The utility model structural principle is simple, can effectively monitor the working condition of battery, once break down Being capable of timely deenergization；Wherein, the short circuit protection module cost of use is low, operating efficiency is high, has short-circuit protection function；Together When also there is quick Disconnected mode and automatic recovery mode.

（2）In the utility model, the controlling switch of use can reach the charge circuit for closing power battery pack and electric discharge The purpose in loop, is effectively protected battery and vehicle load.

（3）In the utility model, voltage/current collector founds permanent KT2 current and voltage datas signal isolation using section and gathered Device, there is input channel to isolate entirely for it, inputs and isolates entirely with output, the advantages of reliable and stable, sampling with high precision.

Brief description of the drawings

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model control box controling circuit structure figure；

Fig. 3 is the utility model short circuit protection module schematic diagram；

Fig. 4 is controlling switch schematic diagram of the present utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-4 are referred to, the utility model provides a kind of technical scheme：A kind of new energy car battery monitoring management dress Put, including battery case 1, the upper end of battery case 1 are provided with closure 2, multigroup automobile storage battery 3 is placed in the inner chamber of battery case 1, The bottom of battery case 1 sets thermovent 4, and the inner side of thermovent 4 is provided with heat sink 5, the thermovent that the utility model is set And heat sink, the heat inside battery case can be effectively dispersed, reaches the purpose of fast cooling；On the outer wall of battery case 1 Provided with control box 6, the control box 6 is provided with CAN interface 7, and temperature, which is fixedly installed, on the outer wall of automobile storage battery 3 passes Sensor 8, the closure 2 are provided with power output end 9, and the output end of automobile storage battery 3 electrically connects with power output end 9 Connect, the power output end 9 connects voltage/current collector 10 and controlling switch 11；

CPU12, electrical parameter signal acquisition module 13, short circuit protection module 14 and CAN interface mould are provided with the control box 6 Block 15, the CPU12 difference electrical parameters signal acquisition module 13, short circuit protection module 14, controlling switch 11, the electrical parameter letter Number acquisition module 13 connects voltage/current collector 10, temperature sensor 8 respectively, and the CPU12 passes through CAN interface module 15 Connect host computer 16；Wherein, voltage/current collector 10 founds permanent KT2 current and voltage datas signal isolation collector using section, its Isolate entirely with input channel, input and isolate entirely with output, the advantages of reliable and stable, sampling with high precision.

In the utility model, short circuit protection module 14 includes operational amplifier 17, triode 18 and field-effect transistor 19, The electrode input end of operational amplifier 17 connects diode A1c negative poles, resistance D4a one end, electric capacity A1b one end and resistance respectively C3a one end, negative input connect resistance A1a one end and resistance B2a one end respectively, and it is another that output end connects resistance B2a respectively End, diode B2c negative poles, the emitter stage of triode 18, the resistance D4a other ends, the electric capacity A1b other ends are grounded, and described three The colelctor electrode of pole pipe 18 connects the resistance C3a other ends, base stage connection resistance F6a one end, the grid of field-effect transistor 19 connection Resistance E5a one end, resistance E5a other ends connection diode B2c positive poles, the field-effect transistor 19 drains connects resistance respectively G7a one end, electric capacity B2b one end are simultaneously grounded, and the electric capacity B2b other ends connect the node between resistance F6a and resistance G7a respectively.This Utility model use short circuit protection module cost is low, operating efficiency is high, there is short-circuit protection function；Also there is fast quick-break simultaneously On-mode and automatic recovery mode.

In the utility model, controlling switch 11 includes the first NMOS tube 20 and the second NMOS tube 21, first NMOS tube 20 drain electrodes are connected with the drain electrode of the second NMOS tube 21, and the source electrode of first NMOS tube 20 is connected with load negative pole, described The grid of first NMOS tube 20 and the grid of the second NMOS tube 21 are connected with CPU12.When to automobile storage battery progress discharge operation When, the first NMOS tube conducting, the second NMOS tube is not turned on；When carrying out charging operations to automobile storage battery, the first NMOS tube is not Conducting, the conducting of the second NMOS tube；When battery cell voltage has more than or short circuit or excessively stream occurs less than predetermined threshold value or battery pack When, the first NMOS tube and the second NMOS tube are not turned on.In the utility model, the controlling switch of use can reach closing power The charge circuit of battery pack and the purpose of discharge loop, are effectively protected battery and vehicle load.

Operation principle：Voltage/current collector and temperature sensor gather the electric current, voltage and temperature of automobile storage battery respectively Signal is spent, and the signal of collection is sent into the CPU to control box by electrical parameter signal acquisition module；CPU is by each of collection Data are sent to host computer processing compared with given threshold, and by fiducial value；If wherein arbitrary parameter occurs abnormal, on Position machine sends control instruction, CPU control controlling switch work, deenergization to CPU；If automobile storage battery is dashed forward in the course of the work So there is short circuit, CPU controls short circuit protection module to work immediately, protects battery and vehicle load.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of new energy car battery monitoring management apparatus, including battery case（1）, it is characterised in that：The battery case（1）On End is provided with closure（2）, the battery case（1）Place multigroup automobile storage battery in inner chamber（3）, the battery case（1）Bottom is set Thermovent（4）, the thermovent（4）Inner side is provided with heat sink（5）, the battery case（1）Outer wall is provided with control box（6）, institute State control box（6）It is provided with CAN interface（7）, the automobile storage battery（3）Temperature sensor is fixedly installed on outer wall（8）, The closure（2）It is provided with power output end（9）, the automobile storage battery（3）Output end and power output end（9）Electrically connect Connect, the power output end（9）Connect voltage/current collector（10）And controlling switch（11）；

The control box（6）It is interior to be provided with CPU（12）, electrical parameter signal acquisition module（13）, short circuit protection module（14）Connect with CAN Mouth mold block（15）, the CPU（12）Electrical parameter signal acquisition module respectively（13）, short circuit protection module（14）, controlling switch （11）, the electrical parameter signal acquisition module（13）Voltage/current collector is connected respectively（10）, temperature sensor（8）, it is described CPU（12）Pass through CAN interface module（15）Connect host computer（16）.

A kind of 2. new energy car battery monitoring management apparatus according to claim 1, it is characterised in that：The short circuit is protected Protect module（14）Including operational amplifier（17）, triode（18）And field-effect transistor（19）, the operational amplifier（17） Electrode input end connects diode A (1c) negative pole, resistance D (4a) one end, electric capacity A (1b) one end and resistance C (3a) one end respectively, Negative input connects resistance A (1a) one end and resistance B (2a) one end respectively, output end connect respectively resistance B (2a) other end, Diode B (2c) negative pole, triode (18) emitter stage, resistance D (4a) other end, electric capacity A (1b) other end are grounded, institute State triode (18) colelctor electrode connection resistance C (3a) other end, base stage connection resistance F (6a) one end, the field-effect transistor (19) grid connection resistance E (5a) one end, resistance E (5a) other end connection diode B (2c) positive pole, the field-effect transistor (19) drain electrode connects resistance G (7a) one end, electric capacity B (2b) one end and is grounded respectively, and electric capacity B (2b) other end connects resistance respectively Node between F (6a) and resistance G (7a).

A kind of 3. new energy car battery monitoring management apparatus according to claim 1, it is characterised in that：The control is opened Close（11）Including the first NMOS tube（20）With the second NMOS tube（21）, first NMOS tube（20）Drain electrode and the second NMOS tube （21）Drain electrode be connected, first NMOS tube（20）Source electrode with load negative pole be connected, first NMOS tube（20） Grid and the second NMOS tube（21）Grid is and CPU（12）It is connected.

A kind of 4. new energy car battery monitoring management apparatus according to claim 1, it is characterised in that：The voltage/ Current collector（10）Permanent KT2 current and voltage datas signal isolation collector is stood using section.