CN211641806U - Water-cooled battery heating system based on pure electric vehicles - Google Patents
Water-cooled battery heating system based on pure electric vehicles Download PDFInfo
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- CN211641806U CN211641806U CN201922331182.1U CN201922331182U CN211641806U CN 211641806 U CN211641806 U CN 211641806U CN 201922331182 U CN201922331182 U CN 201922331182U CN 211641806 U CN211641806 U CN 211641806U
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Abstract
The utility model discloses a water-cooling battery heating system based on pure electric vehicles, the cooling runner on the motor, establish ties mutually through a water pipe between the cooling runner on the machine controller and the water pump, the cooling runner on the motor passes through a water pipe and links to each other with first cross valve, the water pump passes through a water pipe and links to each other with the second cross valve, the cooling runner on the air conditioner cooling assembly corresponds respectively through two water pipes and connects first cross valve and second cross valve, the cooling runner on the power battery group and the cooling runner on the air conditioner cooling assembly are parallelly connected each other. The utility model discloses simple structure, the simple operation, the energy that consumes when having saved the heating of very big degree has promoted power battery thermal management efficiency, and more reasonable distributes the electric energy, has increased pure electric vehicles's continuation mileage of sailing to the problem of electric vehicles continuation mileage shortfall has been solved. The economic performance of the whole vehicle is improved.
Description
The technical field is as follows:
the utility model relates to a water-cooled battery heating system based on pure electric vehicles.
Background art:
with the rapid development of the pure electric vehicle, the technical requirements on the battery are more and more strict, the battery system is one of the most important parts of the pure electric vehicle and is one of the most important parts influencing the service performance and the service life of the whole vehicle, however, the thermal management system (heating and refrigerating of the battery) of the battery directly influences the performance of the battery, a good thermal management scheme can prolong the service life of the battery and improve the charging and discharging times of the battery, so that the driving range of the whole vehicle is improved, and the economic practicability of the whole vehicle is improved.
The traditional battery heating scheme adopts the high-voltage electricity of the battery to heat the battery, so that the great energy of the battery is consumed, and the driving range of the whole vehicle is reduced. Especially when the discharge capacity of the battery is poor in winter.
The invention content is as follows:
the utility model relates to a solve the problem that above-mentioned prior art exists and provide a water-cooled battery heating system based on pure electric vehicles.
The utility model discloses the technical scheme who adopts has: the utility model provides a water-cooling battery heating system based on pure electric vehicles, includes power battery group, first cross valve, air conditioner cooling assembly, second cross valve, motor, machine controller and water pump, establish ties mutually through a water pipe between the cooling runner on the motor, the cooling runner on the machine controller and the water pump, the cooling runner on the motor links to each other with first cross valve through a water pipe, and the water pump links to each other with the second cross valve through a water pipe, and the cooling runner on the air conditioner cooling assembly corresponds respectively through two water pipes and connects first cross valve and second cross valve, and the cooling runner on the power battery group and the cooling runner on the air conditioner cooling assembly are parallelly connected each other.
Further, a cooling fan is provided at one side of the motor controller.
The utility model discloses following beneficial effect has:
the utility model discloses simple structure, the simple operation, the energy that consumes when having saved the heating of very big degree has promoted power battery thermal management efficiency, and more reasonable distributes the electric energy, has increased pure electric vehicles's continuation mileage of sailing to the problem of electric vehicles continuation mileage shortfall has been solved. The economic performance of the whole vehicle is improved.
Description of the drawings:
fig. 1 is a structural diagram of the present invention.
1. The power battery pack comprises a power battery pack 2, a first four-way valve 3, an air conditioner cooling assembly 4, a second four-way valve 5, a motor 6, a motor controller 7, a cooling fan 8 and a water pump.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a water-cooled battery heating system based on pure electric vehicles, including power battery group 1, first cross valve 2, air conditioner cooling assembly 3, second cross valve 4, motor 5, machine controller 6 and water pump 8, above each part is conventional constitutional parts among the current pure electric vehicles, and its structure is current structure, consequently the utility model discloses no longer giving unnecessary details to the concrete structure of each part, only describe water path connection, specifically as follows:
the cooling flow passage on the motor 5, the cooling flow passage on the motor controller 6 and the water pump 8 are connected in series through a water pipe, the cooling flow passage on the motor 5 is connected with the first four-way valve 2 through a water pipe, the water pump 8 is connected with the second four-way valve 4 through a water pipe, the cooling flow passage on the air-conditioning cooling assembly 3 is respectively and correspondingly connected with the first four-way valve 2 and the second four-way valve 4 through two water pipes, the cooling flow passage on the power battery pack 1 is respectively and correspondingly connected with the first four-way valve 2 and the second four-way valve 4 through two water pipes, and the cooling flow passage on the power battery pack 1 is mutually connected in parallel with.
A cooling fan 7 is provided on one side of the motor controller 6.
The utility model discloses an in incorporating the cooling water route of power battery group with the cooling water route of motor into, utilize motor, machine controller work to be produced heat and heat power battery group, when power battery group temperature reached below 5 degrees, power battery group need open the heating, BMS gathers motor, electric control controller's temperature this moment.
When the temperature exceeded 40 degrees, BMS control two cross valves (2, 4) closed the water route of air conditioner battery cooling assembly, opened and lead to motor, electric control controller water route, the water in motor, the electric control controller water route will flow through power battery package this moment, thereby power battery package heats the battery through the heat exchange, cooling fan 7 is out of work this moment to let more heats pass through the battery package, improve the speed that power battery package heated.
When the temperature of the battery rises to 15 ℃, the BMS controls the four-way valve (parts 2 and 4) to close the electric control cooling water path of the motor, so that the electric control water path of the motor is not communicated with the battery cooling water path, and the battery heating is finished at the moment. When the BMS monitors that the temperature of the water controlled by the motor is not 40 ℃, the battery pack is heated by the electric heating which is still turned on as an auxiliary heating.
The utility model discloses integrated traditional battery heating mode to can be applicable to various road conditions, under general condition, when being in the driving state at first, the automatically controlled temperature of motor can rise rapidly, will exceed 40 degrees in the time of the utmost point short. The utility model discloses greatly reduced the battery and used the frequency of self ability to oneself heating. Basically, only when the whole vehicle is just started, the electric heating is used as auxiliary heating, because the discharge capacity is very small when the battery pack is below 0 ℃, the working efficiency is extremely low, the vehicle is allowed to run only by heating the battery to above 0 ℃, and the battery can be heated by the temperature generated by the motor and the electric control in the rest time, so that the electric quantity of the battery is greatly saved.
Original power battery heat management scheme is battery water-cooling and electric heating, the utility model discloses parallelly connected the automatically controlled cooling system of motor to battery cooling system on original battery heat management basis, original electric heating system still has, as the auxiliary heating system under extreme condition, when power battery group needs the cooling, battery cooling system opens, motor cooling system closes the autonomous working through the cross valve, the automatically controlled cooling circuit of motor is not intervened in the water route, when the battery needs the heating, if the motor temperature exceeds 40 degrees in this time, intervene the battery water route with the motor cooling water route through the cross valve this moment in, cut off air conditioner cooling water return circuit through the control to the cross valve simultaneously. The heat generated by the electric control of the motor flows through the battery pack through the water path to heat the battery, and the electric control cooling water path of the motor is disconnected by controlling the four-way valve when the battery is heated to a proper temperature. When the vehicle is not started and the cooling temperature of the motor is lower, the battery is still heated by the energy of the battery, and the temperature of the motor is switched to the electric control cooling water path of the motor after rising. The scheme greatly saves the battery energy in the primary battery heating scheme, the saved energy is used for improving the driving range of the whole vehicle, and the efficiency of power battery heat management is also improved, so that the whole vehicle has better economical efficiency!
The utility model discloses parallelly connected the switching of cross valve with the battery cooling water route to the motor cooling water route, when the battery cooling, the motor cooling water route is disconnected with the battery cooling water route, the autonomous working. When the battery needs to be heated, the electric control cooling water path of the motor is connected to the battery cooling loop, the air conditioner cooling water path is disconnected through the four-way valve, the battery is heated by heat generated by the motor and electric control work, and meanwhile heat can be dissipated for the motor. The energy for heating the battery is saved, so that the driving range is increased, and the economic practicability of the electric vehicle is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a water-cooled battery heating system based on pure electric vehicles which characterized in that: comprises a power battery pack (1), a first four-way valve (2), an air conditioner cooling assembly (3), a second four-way valve (4), a motor (5), a motor controller (6) and a water pump (8), the cooling flow channel on the motor (5), the cooling flow channel on the motor controller (6) and the water pump (8) are connected in series through a water pipe, the cooling flow channel on the motor (5) is connected with the first four-way valve (2) through a water pipe, the water pump (8) is connected with the second four-way valve (4) through a water pipe, the cooling flow channel on the air-conditioning cooling assembly (3) is correspondingly connected with the first four-way valve (2) and the second four-way valve (4) through two water pipes respectively, the cooling flow channel on the power battery pack (1) is correspondingly connected with the first four-way valve (2) and the second four-way valve (4) through two water pipes respectively, and the cooling flow channel on the power battery pack (1) and the cooling flow channel on the air-conditioning cooling.
2. The pure electric vehicle-based water-cooled battery heating system of claim 1, characterized in that: a cooling fan (7) is arranged on one side of the motor controller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922331182.1U CN211641806U (en) | 2019-12-23 | 2019-12-23 | Water-cooled battery heating system based on pure electric vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922331182.1U CN211641806U (en) | 2019-12-23 | 2019-12-23 | Water-cooled battery heating system based on pure electric vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211641806U true CN211641806U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922331182.1U Active CN211641806U (en) | 2019-12-23 | 2019-12-23 | Water-cooled battery heating system based on pure electric vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211641806U (en) |
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2019
- 2019-12-23 CN CN201922331182.1U patent/CN211641806U/en active Active
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