CN111146380A - Power battery box and control method for liquid cooling circulation of power battery box - Google Patents
Power battery box and control method for liquid cooling circulation of power battery box Download PDFInfo
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- CN111146380A CN111146380A CN201811309033.9A CN201811309033A CN111146380A CN 111146380 A CN111146380 A CN 111146380A CN 201811309033 A CN201811309033 A CN 201811309033A CN 111146380 A CN111146380 A CN 111146380A
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- 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
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- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
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- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. 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)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a power battery box and a control method of liquid cooling circulation of the power battery box, wherein the power battery box comprises: a box body; a water pump and a water cooling plate are arranged in the box body, a cooling pipeline is arranged on the outer surface of the box body, and the water pump is respectively communicated with the water cooling plate and the cooling pipeline; and an electrode connector is arranged on the side wall of the box body and is used for being connected with a power electrode of a vehicle to output electric energy. The invention can realize the cooling of the battery cell and has the effect of balancing the temperature of the battery cell in the battery cell. The invention does not need to be connected with a cooling system of a vehicle, saves a connecting joint of a liquid cooling pipeline and is convenient to disassemble and install.
Description
Technical Field
The invention belongs to the technical field of power batteries, and particularly relates to a power battery box and a control method for liquid cooling circulation of the power battery box.
Background
New energy automobile develops fast, drives power battery development simultaneously. In the use process of a new energy vehicle (taking a power battery as an energy source), heat can be generated, and battery thermal management is always an indispensable concern link in the design and use process of a power battery pack. The conventional power battery pack generally adopts a forced cooling scheme or a natural cooling scheme, wherein the common forced cooling scheme is water cooling, and a water pump, a compressor, an evaporator and the like are additionally arranged inside and outside the pack to take away heat generated by the battery, so that the heat dissipation effect is achieved. In the field of electric vehicle battery replacement, in the prior art, a cooling pipe on a power battery pack needs to be connected with a cooling system on a vehicle to cool the power battery pack, and the cooling system of the vehicle supplies cooling liquid to the cooling pipe on the power battery pack and controls the flow of the cooling liquid. Because the power battery pack needs to be disassembled and replaced, the cooling pipe on the power battery pack needs to be disconnected and connected with a cooling system on a vehicle every time the power battery pack is disassembled and installed, and the power battery pack is extremely inconvenient; in addition, the joint of the cold water inlet and outlet pipes is easily worn, and the sealing performance is poor. In addition, when the connection is not tight, leakage is likely to occur.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects that a cooling pipe on a power battery pack needs to be connected with a cooling system on a vehicle and is inconvenient to disassemble and assemble in the prior art, and provides a power battery box and a control method for liquid cooling circulation of the power battery box.
The invention solves the technical problems through the following technical scheme:
a power cell box comprising: a box body;
a water pump and a water cooling plate are arranged in the box body, a cooling pipeline is arranged on the outer surface of the box body, and the water pump is respectively communicated with the water cooling plate and the cooling pipeline;
and an electrode connector is arranged on the side wall of the box body and is used for being connected with a power electrode of a vehicle to output electric energy.
Preferably, still be provided with first connector on the lateral wall of box, first connector is connected with the water pump electricity for the water pump provides the electric energy, first connector still is used for being connected with the storage battery of vehicle, in order to obtain the electric energy.
Preferably, the outer wall of the cooling pipeline is provided with a radiating fin.
Preferably, the heat dissipation fins are radially arranged.
Preferably, the inside of box still is provided with temperature sensor, and temperature sensor is used for detecting the temperature of electric core.
Preferably, the power battery box further comprises a control unit, the control unit is used for obtaining the temperature from the temperature sensor, and the control unit is further used for starting the water pump when the temperature is larger than a preset temperature threshold value.
Preferably, the control unit is further configured to control the power of the water pump according to the temperature.
Preferably, a first connecting mechanism is arranged on the outer surface of the side wall of the box body, and the first connecting mechanism is used for being connected with a battery bracket of a vehicle.
The invention also provides a control method of liquid cooling circulation of the power battery box, which is realized by adopting the power battery box of the invention and comprises the following steps:
s1, detecting the temperature of the battery cell by the temperature sensor;
s2, the control unit acquires the temperature from the temperature sensor, and if the temperature is larger than a preset temperature threshold, the step S3 is executed;
and S3, the control unit starts the water pump.
Preferably, step S3 further includes:
the control unit controls the power of the water pump according to the temperature.
The positive progress effects of the invention are as follows: the invention can realize the cooling of the battery cell and has the effect of balancing the temperature of the battery cell in the battery cell. The invention does not need to be connected with a cooling system of a vehicle, saves a connecting joint of a liquid cooling pipeline and is convenient to disassemble and install.
Drawings
Fig. 1 is a schematic perspective view of a power battery box according to embodiment 1 of the present invention.
Fig. 2 is a schematic top view of a power battery box according to embodiment 1 of the present invention.
Fig. 3 is a schematic bottom view of a power battery box according to embodiment 1 of the present invention.
Fig. 4 is a schematic structural view of a heat dissipation fin of a power battery box according to embodiment 1 of the present invention.
Fig. 5 is a cross-sectional view showing cooling ducts and heat radiating fins of a power battery box according to embodiment 1 of the present invention.
Fig. 6 is a flowchart of a method for controlling a liquid cooling cycle of a power battery box according to embodiment 2 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The present embodiment provides a power battery box, and referring to fig. 1, 2, and 3, the power battery box includes: a box body 1; a water pump 101 and a water cooling plate 102 are arranged in the box body 1, a cooling pipeline 103 is arranged on the outer surface of the box body 1, and the water pump 101 is respectively communicated with the water cooling plate 102 and the cooling pipeline 103. The water cooling plates 102 are uniformly arranged on the bottom surface of the interior of the box body 1, and when the battery pack is installed in the interior of the box body 1, the water cooling plates 102 are attached to the surface of the battery pack. In the cooling process, evenly distributed's water-cooling board can also play the balanced effect of the temperature that makes the electric core in the battery package, and it is big to avoid the temperature difference between a plurality of electric cores, leads to electric core unstability, or sends the damage. In order to obtain a better cooling effect, the cooling pipe 103 is a serpentine pipe and is uniformly distributed on the outer surface of the box body 1.
An electrode connector 105 is arranged on the side wall of the box body 1, the electrode connector 105 is used for being correspondingly connected with an electrode of the battery cell, and the electrode connector 105 is also used for being connected with a power electrode of a vehicle. When the battery pack is mounted to the inside of the case 1, the electrodes of the battery pack are connected to the corresponding electrodes of the electrode connector 105. When the power battery case of the present embodiment is mounted to a battery bracket of a vehicle, the corresponding electrodes of the electrode connector 105 are connected to power electrodes of the vehicle, and the vehicle can obtain electric power from the battery pack.
The side wall of the box body 1 is further provided with a first connector 104, the first connector 104 is electrically connected with the water pump and used for providing electric energy for the water pump, and the first connector 104 is further used for being connected with a storage battery of a vehicle to obtain the electric energy. When the power battery box of the present embodiment is mounted to a battery support of a vehicle, the first connector 104 is connected to a corresponding connector on the battery support, which is electrically connected to a battery of the vehicle. The water pump can obtain electric energy from a storage battery of the vehicle.
Referring to fig. 3, 4, and 5, the cooling duct 13 is provided with heat radiating fins 106 on the outer wall thereof. Fig. 3 shows the heat dissipating fins 106 in a generalized manner only, and fig. 4 and 5 show details of the heat dissipating fins 106. The fins 106 are radially arranged. Because the cooling pipeline 103 and the radiating fins 106 are arranged outside the box body 1, heat can be radiated by means of the flowing of air around the cooling pipeline 103 and the radiating fins 106 in the running process of the vehicle, the radiating effect is improved, and the electric energy of the vehicle is saved.
The inside of the box 1 is further provided with a temperature sensor (not shown in the figure), and the temperature sensor is used for detecting the temperature of the battery cell. When the battery package was installed to the inside of this power battery case, temperature sensor hugged closely the outer wall of this battery package to realize accurate measurement. And the display unit receives the temperature information of the battery cell from the temperature sensor for displaying.
In order to realize automatic control, the power battery box of this embodiment further includes a control unit (not shown in the figure), and the control unit is configured to obtain the measured temperature of the battery pack from the temperature sensor, and the control unit is further configured to start the water pump when the temperature is greater than a preset temperature threshold. When the temperature is higher than the preset temperature threshold value, the temperature of the battery pack is over high, and the control unit starts the water pump. The cooling liquid in the water cooling plate and the cooling water pipe flows in the water cooling plate and the cooling water pipe according to the preset direction, and the cooling effect is achieved. Furthermore, the control unit is also used for controlling the power of the water pump according to the temperature of the battery pack so as to control the flow rate of the cooling liquid and realize the corresponding cooling speed. When the temperature of the battery pack is higher, the control unit controls the water pump to work at higher power, so that higher cooling speed is realized; when the temperature of the battery pack is less than the preset temperature threshold value, the control unit controls the water pump to work at lower power so as to save energy. When the temperature of the battery pack is lowered to a safe temperature, the control unit turns off the water pump. In this case, the water-cooled plate, the cooling water pipe, and the heat radiating fins can be used for natural heat radiation.
Referring to fig. 1, 2 and 3, a first connecting mechanism 107 is disposed on an outer surface of a side wall of the box body 1, and the first connecting mechanism 107 is used for connecting with a battery support of a vehicle to fix the power battery box of the embodiment on the battery support of the vehicle. In this embodiment, the first connecting mechanism is a positioning shaft, and a battery support of the vehicle is provided with a positioning hole corresponding to the positioning shaft. The positioning shaft is inserted into a positioning hole on a battery bracket of the vehicle, so that the power battery box can be fixed on the battery bracket of the vehicle. In other alternative embodiments of the present invention, the first connecting mechanism includes a bolt by which the power battery box is fixed to a battery bracket of the vehicle.
The power battery box of this embodiment can realize the cooling to electric core to play the balanced effect of electric core temperature in the electric core, and needn't be connected with the cooling system of vehicle, can save the attach fitting of liquid cooling pipeline, dismantle, simple to operate.
Example 2
The present embodiment provides a method for controlling liquid cooling cycle of a power battery box, where the method is implemented by using the power battery box of embodiment 1, and with reference to fig. 6, the method includes the following steps:
step S501, the temperature sensor detects the temperature of the battery core.
Step S502, the control unit acquires the temperature of the battery cell from the temperature sensor, judges whether the temperature of the battery cell is greater than a preset temperature threshold value or not, and if so, executes step S503; if not, step S501 is executed.
In step S503, the control unit starts the water pump.
When the temperature is higher than the preset temperature threshold value, the temperature of the battery pack is over high, and the control unit starts the water pump. The cooling liquid in the water cooling plate and the cooling water pipe flows in the water cooling plate and the cooling water pipe according to the preset direction, and the cooling effect is achieved. Further, in step S503, the control unit further controls the power of the water pump according to the temperature of the battery pack to control the flow rate of the cooling liquid to achieve a corresponding cooling rate. When the temperature of the battery pack is higher, the control unit controls the water pump to work at higher power, so that higher cooling speed is realized; when the temperature of the battery pack is less than the preset temperature threshold value, the control unit controls the water pump to work at lower power so as to save energy. When the temperature of the battery pack is lowered to a safe temperature, the control unit turns off the water pump. In this case, the water-cooled plate, the cooling water pipe, and the heat radiating fins can be used for natural heat radiation.
The control method for liquid cooling circulation of the power battery box can realize cooling of the battery core, has the effect of balancing the temperature of the battery core in the battery core, does not need to be connected with a cooling system of a vehicle, can save a connecting joint of a liquid cooling pipeline, and is convenient to disassemble and install.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A power battery box, characterized by comprising: a box body;
a water pump and a water cooling plate are arranged in the box body, a cooling pipeline is arranged on the outer surface of the box body, and the water pump is respectively communicated with the water cooling plate and the cooling pipeline;
and an electrode connector is arranged on the side wall of the box body and is used for being connected with a power electrode of a vehicle to output electric energy.
2. The power battery box as claimed in claim 1, wherein a first connector is further disposed on the side wall of the box body, the first connector is electrically connected to the water pump for supplying electric power to the water pump, and the first connector is further connected to a battery of a vehicle for obtaining electric power.
3. The power battery box of claim 2, wherein the cooling duct is provided with heat dissipating fins on an outer wall thereof.
4. The power cell box of claim 3, wherein the fins are radially arranged.
5. The power battery box of claim 1, wherein a temperature sensor is further arranged inside the box body, and the temperature sensor is used for detecting the temperature of the battery cells.
6. The power battery box of claim 5, further comprising a control unit configured to obtain the temperature from the temperature sensor, wherein the control unit is further configured to activate the water pump when the temperature is greater than a preset temperature threshold.
7. The power cell box of claim 6, wherein the control unit is further configured to control the power of the water pump based on the temperature.
8. The power battery box of claim 1, wherein the outer surface of the side wall of the box body is provided with a first connecting mechanism, and the first connecting mechanism is used for being connected with a battery bracket of the vehicle.
9. A control method for liquid cooling circulation of a power battery box, which is characterized in that the control method is realized by adopting the power battery box as claimed in claim 6, and the control method comprises the following steps:
s1, detecting the temperature of the battery cell by the temperature sensor;
s2, the control unit acquires the temperature from the temperature sensor, and if the temperature is larger than a preset temperature threshold, the step S3 is executed;
and S3, the control unit starts the water pump.
10. The method for controlling liquid cooling cycle of power battery box according to claim 9, wherein step S3 further comprises:
and the control unit controls the power of the water pump according to the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811309033.9A CN111146380A (en) | 2018-11-05 | 2018-11-05 | Power battery box and control method for liquid cooling circulation of power battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811309033.9A CN111146380A (en) | 2018-11-05 | 2018-11-05 | Power battery box and control method for liquid cooling circulation of power battery box |
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| Publication Number | Publication Date |
|---|---|
| CN111146380A true CN111146380A (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811309033.9A Pending CN111146380A (en) | 2018-11-05 | 2018-11-05 | Power battery box and control method for liquid cooling circulation of power battery box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002847B (en) * | 2020-10-27 | 2021-02-12 | 温州市丽豹汽车配件有限公司 | Battery pack box with high-strength guard plate for automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457372A (en) * | 2013-09-13 | 2015-03-25 | 天津博盛源化工有限公司 | Cooling water pipe with cooling fins |
| CN204809280U (en) * | 2015-06-23 | 2015-11-25 | 江苏快乐电源(涟水)有限公司 | Tunnel traction power with from cooling device |
| CN205194807U (en) * | 2015-11-12 | 2016-04-27 | 东软集团股份有限公司 | Electric automobile power battery's thermal management system and electric automobile |
| CN207572497U (en) * | 2017-11-26 | 2018-07-03 | 合肥国盛电池科技有限公司 | A kind of cooling device of lithium battery |
| CN108666495A (en) * | 2018-07-30 | 2018-10-16 | 江苏银基烯碳能源科技有限公司 | A kind of battery pack |
-
2018
- 2018-11-05 CN CN201811309033.9A patent/CN111146380A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457372A (en) * | 2013-09-13 | 2015-03-25 | 天津博盛源化工有限公司 | Cooling water pipe with cooling fins |
| CN204809280U (en) * | 2015-06-23 | 2015-11-25 | 江苏快乐电源(涟水)有限公司 | Tunnel traction power with from cooling device |
| CN205194807U (en) * | 2015-11-12 | 2016-04-27 | 东软集团股份有限公司 | Electric automobile power battery's thermal management system and electric automobile |
| CN207572497U (en) * | 2017-11-26 | 2018-07-03 | 合肥国盛电池科技有限公司 | A kind of cooling device of lithium battery |
| CN108666495A (en) * | 2018-07-30 | 2018-10-16 | 江苏银基烯碳能源科技有限公司 | A kind of battery pack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002847B (en) * | 2020-10-27 | 2021-02-12 | 温州市丽豹汽车配件有限公司 | Battery pack box with high-strength guard plate for automobile |
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