CN104051684A - Power battery device with water drainage function and control method thereof - Google Patents
Power battery device with water drainage function and control method thereof Download PDFInfo
- Publication number
- CN104051684A CN104051684A CN201410235753.0A CN201410235753A CN104051684A CN 104051684 A CN104051684 A CN 104051684A CN 201410235753 A CN201410235753 A CN 201410235753A CN 104051684 A CN104051684 A CN 104051684A
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- CN
- China
- Prior art keywords
- power battery
- water
- electromagnetically operated
- car load
- operated valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000009825 accumulation Methods 0.000 claims description 5
- 238000012279 drainage procedure Methods 0.000 claims description 4
- 210000000664 rectum Anatomy 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a power battery device with a water drainage function and a control method thereof, wherein the device comprises a battery box body and a power battery module in the battery box body, wherein a water drainage device is arranged between the battery box body and the power battery module; the battery box body is provided with an air inlet and an air outlet, and air circulates through an air channel between the air inlet and the air outlet; drainage device includes water drainage pipeline, the last 1# solenoid valve and the 2# solenoid valve that is equipped with of water drainage pipeline, be equipped with water level sensor between 1# solenoid valve and the 2# solenoid valve, the 2# solenoid valve is connected with the vacuum pump through the buffer tank, the bottom of battery box adopts moisture to gather the structure. The drainage of the battery box body is realized through the whole vehicle control in the whole vehicle running process, the whole vehicle stopping process and the drainage process, and the problems that water vapor is condensed in the battery pack due to air cooling and heat dissipation and water entering the battery box body carelessly in other modes is discharged in time are effectively solved.
Description
Technical field
The present invention relates to electric automobile field, be specifically related to a kind of power battery device and control method thereof with drain function.
Background technology
Electrokinetic cell, as the power source of electric automobile, is one of kernel component of electric automobile.In electrokinetic cell charge and discharge process, can produce a large amount of heats, if producing heat cannot discharge in time, the local temperature skewness weighing apparatus of electrokinetic cell be can cause and then charge-discharge performance and the useful life of electrokinetic cell affected, even can affect reliability and the fail safe of power vehicle, therefore electrokinetic cell be carried out to effective heat management and be very important.
At present the thermal management algorithm of electrokinetic cell is mainly comprised to air-cooled, liquid cooling and use phase-change material etc., air-cooled is the most frequently used a kind of heat dissipating method, but wind-cooling heat dissipating can be brought the steam in outside air into power brick to a certain extent, part steam finally can condense and stay in power brick, can cause casing insulation property to reduce; In addition, if the classification of waterproof of Battery case is inadequate, also may there is the casing situation generation potential safety hazard of water inlet accidentally.Therefore the drain function research of electrokinetic cell is become to key issue urgently to be resolved hurrily.
Patent of invention (CN101924259B) discloses a kind of power battery double-circulation air-cooled heat radiation method and device with function of temperature difference control, adopted the design of interior case and outer container, interior case packed battery, outer container is as air channel, by cooling outer circulation, inner heat is passed to the object of going to reach heat radiation in extraneous air, played the object of waterproof simultaneously.But in this device, air is not directly to contact with battery, and radiating effect is unsatisfactory, and the design of outer container and interior case makes the structure of electrokinetic cell become complicated, the corresponding raising of cost.
Summary of the invention
In view of this, the invention provides a kind of power battery device and control method thereof with drain function, by the control method of taking under different operating modes, realize the timely discharge of moisture in power brick.
The technical solution used in the present invention is specially: a kind of power battery device with drain function, comprise the power battery module in Battery case and Battery case, and between described Battery case and power battery module, be provided with drainage arrangement; Described Battery case is provided with air inlet and air outlet, and gas circulates by the air channel between described air inlet and air outlet; Drainage arrangement comprises discharge pipe line, described discharge pipe line is provided with 1# electromagnetically operated valve and 2# electromagnetically operated valve, between described 1# electromagnetically operated valve and 2# electromagnetically operated valve, be provided with water sensor, described 2# electromagnetically operated valve is connected with vacuum pump by surge tank, and the bottom of described Battery case adopts moisture accumulation structure.
Described moisture accumulation structure is taper, domatic or arcs of recesses structure.
Described electromagnetically operated valve is DC electromagnetic valve, and described DC electromagnetic valve is direct-acting electromagnetic valve or step direct-acting type electromagnetic valve.
Latus rectum≤the 25mm of described electromagnetically operated valve.
Described water sensor is level sensor.
Described vacuum pump is vane-type vacuum pump, and described vane-type vacuum pump is car load brake boosting vacuum pump.
Described surge tank is provided with the draining valve of water directly being discharged to power battery device.
A kind of control method with the power battery device of drain function, the heat management mode of described cell apparatus is for directly air-cooled, be included in car load driving process, after car load stagnation of movement and control by car load the control method that realizes drain function in drainage procedure, wherein:
In car load driving process, electrokinetic cell system is normally worked, car load controls that 1# electromagnetically operated valve is opened, 2# closed electromagnetic valve, because wind-cooling heat dissipating flows in the discharge pipe line of drainage arrangement together with accidentally entering by other means the water in cell apparatus at the steam condensing in described cell apparatus;
After car load stagnation of movement, electrokinetic cell system quits work, water sensor detects the water yield in described discharge pipe line, when the described water yield reaches startup draining predetermined value, car load is controlled 1# closed electromagnetic valve, 2# electromagnetically operated valve is opened, open vacuum pump, described vacuum pump sucks the water in discharge pipe line in surge tank simultaneously;
In drainage procedure, described water sensor continues the water yield in discharge pipe line to detect, and when the water yield reaches while stopping draining predetermined value, described vacuum pump quits work, and car load is controlled 2# closed electromagnetic valve simultaneously, 1# electromagnetically operated valve is opened, and draining finishes.
Described startup draining predetermined value is the value between 0.2～1cm, described in to stop draining predetermined value be the value between 0～0.2cm.
The draining valve being provided with by surge tank is directly discharged the water in described surge tank.
The beneficial effect that the present invention produces is: drainage arrangement makes electric automobile can drain in time the water of power battery device accumulated inside, overcome direct air-cooled brought a waterproof difficult problem, so battery can adopt the heat management mode of direct wind-cooling heat dissipating; For the water that accidentally enters inside battery, this device can be discharged water equally in time simultaneously.In addition, also use the brake boosting vacuum pump system of car load, designed ingenious novelty, simple and compact for structure, and drainage effect is obvious, has guaranteed the operability of the heat management mode of " directly wind-cooling heat dissipating ".
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, can more completely understand better the present invention.Accompanying drawing described herein is used to provide a further understanding of the present invention, and embodiment and explanation thereof are used for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is a kind of structural representation with the power battery device of drain function of the present invention;
Fig. 2 is the structural representation of the drainage arrangement of a kind of power battery device with drain function of the present invention.
In figure: 1, Battery case 2, power battery module 3, air inlet 4, air outlet 5, air channel 6, drainage arrangement 7, discharge pipe line 8,1# electromagnetically operated valve 9, water sensor 10,2# electromagnetically operated valve 11, surge tank 12, vacuum pump.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
The power battery device with drain function as shown in Figure 1, comprise Battery case 1, power battery module 2, air inlet 3, air outlet, air channel 5 and drainage arrangement 6, further as shown in Figure 2, drainage arrangement 6 comprises discharge pipe line 7,1# electromagnetically operated valve 8, water sensor 9,2# electromagnetically operated valve 10, surge tank 11 and vacuum pump 12.
The heat management mode of electrokinetic cell drainage arrangement is air-cooled, and preferably directly air cooling way, and the temperature of Battery case 1 inside need preferably be controlled in certain temperature range, preferably 0～60 ℃; In order to guarantee that the water of Battery case 1 accumulated inside can flow in drainage arrangement 6, the bottom of Battery case 1 adopts the structural design that is easy to moisture accumulation, as structures such as taper, domatic or arcs of recessess, 1# electromagnetically operated valve 8 and 2# electromagnetically operated valve 10 are DC electromagnetic valve, be preferably direct-acting electromagnetic valve or step direct-acting type electromagnetic valve, the latus rectum need≤25mm of electromagnetically operated valve; Water sensor 9 between 1# electromagnetically operated valve 8 and 2# electromagnetically operated valve 10 is preferably level sensor, and when the water level in discharge pipe line 7 reaches predetermined value, drainage arrangement 6 is started working..
Surge tank 11 is directly connected with vacuum pump 12 with 2# electromagnetically operated valve 10, and object is to prevent that the water in discharge pipe line 6 from directly entering in vacuum pump 12.
Also draining valve (not marking) can be further set, after drainage arrangement 6 power cut-offs, can water directly be discharged by draining valve.
Vacuum pump 12 is vane-type vacuum pump, can directly utilize the brake boosting vacuum pump of car load, and when drainage arrangement 6 starts, vacuum pump 12 work also suck the water in discharge pipe line 7 in surge tank 11.
By two embodiments, further illustrate draining control strategy of the present invention below:
Embodiment 1
Be equipped on the rated voltage 320V of the electrokinetic cell system on pure electric automobile, capacity 80Ah, electrokinetic cell casing 1 adopts direct wind-cooling heat dissipating mode, bottom adopts pyramidal structure design, ambient temperature in the normal driving process of car load is-10 ℃, air-cooled gas temperature is 20 ℃, and the box body wall of air-cooled gas contact Battery case 1 produces condensed water, and enters in drainage arrangement 6 via taper tank floor; After car load stagnation of movement, the water yield that water sensor 11 detects in discharge pipe line 7, does not reach discharge level predetermined value (0.5cm), and car load is lower electricity normally; After 20d, the water level that water sensor 9 detects in discharge pipe line 7 has reached 0.5cm, car load controls 1# electromagnetically operated valve 8 and cuts out,, 2# electromagnetically operated valve 10 opens, and controls afterwards brake boosting vacuum pump work, the water in discharge pipe line 7 is drawn in surge tank 11, when water sensor 9 detects water level in discharge pipe line 7 lower than 0.1cm, car load is controlled brake boosting vacuum pump and is quit work, and controls that 1# electromagnetically operated valve 8 is opened, 2# electromagnetically operated valve 10 cuts out simultaneously, and car load is lower electricity normally.Car load normally descends after electricity, by the draining valve on surge tank 11 the most at last water discharge, draining finishes.
Embodiment 2
Be equipped on the electrokinetic cell system rated voltage 320V on pure electric automobile, capacity 80Ah, the bottom of electrokinetic cell casing 1 adopts pyramidal structure design, in the normal driving process of car load, run into the serious ponding of rainstorm weather and road surface, cause having water accidentally to enter the inside of electrokinetic cell casing 1, and enter in drainage arrangement 6 via taper tank floor; After car load stagnation of movement, the water level that water sensor 9 detects in discharge pipe line surpasses preset value (0.5cm), car load control 1# electromagnetically operated valve 8 cuts out, 2# electromagnetically operated valve 10 is opened, control afterwards brake boosting vacuum pump 12 work, water in discharge pipe line 7 is drawn in surge tank 11, until water sensor 9 is while water level in discharge pipe line being detected lower than 0.1cm, car load is controlled brake boosting vacuum pump 12 and is quit work, control that 1# electromagnetically operated valve 8 is opened, 2# electromagnetically operated valve 10 cuts out, car load is lower electricity normally simultaneously.Under car load, after electricity, by the draining valve on surge tank 11, water is finally discharged, draining finishes.
Can find out, the present invention has solved the timely discharge that the steam bringing due to wind-cooling heat dissipating condenses in power brick and other modes enter the water of inside battery accidentally simultaneously, guarantee the driving safety of car load, consolidated the reliability of direct air-cooled heat management mode.
As mentioned above, embodiments of the invention are explained, obviously, as long as do not depart from fact inventive point of the present invention and effect, the distortion that will be readily apparent to persons skilled in the art, within being all included in protection scope of the present invention yet.
Claims (10)
1. a power battery device with drain function, is characterized in that, comprises the power battery module in Battery case and Battery case, between described Battery case and power battery module, is provided with drainage arrangement; Described Battery case is provided with air inlet and air outlet, and gas circulates by the air channel between described air inlet and air outlet; Drainage arrangement comprises discharge pipe line, described discharge pipe line is provided with 1# electromagnetically operated valve and 2# electromagnetically operated valve, between described 1# electromagnetically operated valve and 2# electromagnetically operated valve, be provided with water sensor, described 2# electromagnetically operated valve is connected with vacuum pump by surge tank, and the bottom of described Battery case adopts moisture accumulation structure.
2. a kind of power battery device with drain function according to claim 1, is characterized in that, described moisture accumulation structure is taper, domatic or arcs of recesses structure.
3. a kind of power battery device with drain function according to claim 1, is characterized in that, described electromagnetically operated valve is DC electromagnetic valve, and described DC electromagnetic valve is direct-acting electromagnetic valve or step direct-acting type electromagnetic valve.
4. a kind of power battery device with drain function according to claim 3, is characterized in that the latus rectum≤25mm of described electromagnetically operated valve.
5. a kind of power battery device with drain function according to claim 1, is characterized in that, described water sensor is level sensor.
6. a kind of power battery device with drain function according to claim 1, is characterized in that, described vacuum pump is vane-type vacuum pump, and described vane-type vacuum pump is car load brake boosting vacuum pump.
7. a kind of power battery device with drain function according to claim 1, is characterized in that, described surge tank is provided with the draining valve of water directly being discharged to power battery device.
8. a control method with the power battery device of drain function, it is characterized in that, the heat management mode of described cell apparatus is for directly air-cooled, in car load driving process, after car load stagnation of movement and control by car load the control method that realizes drain function in drainage procedure, wherein:
In car load driving process, electrokinetic cell system is normally worked, car load controls that 1# electromagnetically operated valve is opened, 2# closed electromagnetic valve, because wind-cooling heat dissipating flows in the discharge pipe line of drainage arrangement together with accidentally entering by other means the water in cell apparatus at the steam condensing in described cell apparatus;
After car load stagnation of movement, electrokinetic cell system quits work, water sensor detects the water yield in described discharge pipe line, when the described water yield reaches startup draining predetermined value, car load is controlled 1# closed electromagnetic valve, 2# electromagnetically operated valve is opened, open vacuum pump, described vacuum pump sucks the water in discharge pipe line in surge tank simultaneously;
In drainage procedure, described water sensor continues the water yield in discharge pipe line to detect, and when the water yield reaches while stopping draining predetermined value, described vacuum pump quits work, and car load is controlled 2# closed electromagnetic valve simultaneously, 1# electromagnetically operated valve is opened, and draining finishes.
9. a kind of control method with the power battery device of drain function according to claim 8, is characterized in that, described startup draining predetermined value is the value between 0.2～1cm, described in to stop draining predetermined value be the value between 0～0.2cm.
10. a kind of control method with the power battery device of drain function according to claim 8, is characterized in that, the draining valve being provided with by surge tank is directly discharged the water in described surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235753.0A CN104051684B (en) | 2014-05-29 | 2014-05-29 | Power battery device with water drainage function and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235753.0A CN104051684B (en) | 2014-05-29 | 2014-05-29 | Power battery device with water drainage function and control method thereof |
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| Publication Number | Publication Date |
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| CN104051684A true CN104051684A (en) | 2014-09-17 |
| CN104051684B CN104051684B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410235753.0A Expired - Fee Related CN104051684B (en) | 2014-05-29 | 2014-05-29 | Power battery device with water drainage function and control method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301393A (en) * | 2018-10-30 | 2019-02-01 | 孙桂芃 | A kind of electric vehicle battery system |
| CN110323370A (en) * | 2018-03-28 | 2019-10-11 | 郑州宇通重工有限公司 | A kind of battery case moisture solution system and a kind of battery case |
| JP2020004568A (en) * | 2018-06-27 | 2020-01-09 | 本田技研工業株式会社 | Battery pack and electric vehicle |
| CN111106280A (en) * | 2019-08-27 | 2020-05-05 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN113937410A (en) * | 2021-09-30 | 2022-01-14 | 珠海中力新能源科技有限公司 | Automobile power battery |
| CN116487839A (en) * | 2023-06-20 | 2023-07-25 | 江铃汽车股份有限公司 | Drainage device of battery pack, battery pack and electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113937410A (en) * | 2021-09-30 | 2022-01-14 | 珠海中力新能源科技有限公司 | Automobile power battery |
| CN116487839A (en) * | 2023-06-20 | 2023-07-25 | 江铃汽车股份有限公司 | Drainage device of battery pack, battery pack and electric automobile |
| CN116487839B (en) * | 2023-06-20 | 2023-11-17 | 江铃汽车股份有限公司 | Drainage device of battery pack, battery pack and electric automobile |
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| CN104051684B (en) | 2016-08-17 |
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Granted publication date: 20160817 |