CN213920661U

CN213920661U - Cooling system for driving motor of electric automobile

Info

Publication number: CN213920661U
Application number: CN202022498449.9U
Authority: CN
Inventors: 张璐
Original assignee: Suzhou Tongjie Automotive Engineering Technology Co ltd
Current assignee: Suzhou Tongjie Automotive Engineering Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-08-10
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses an electric automobile driving motor cooling system, including the motor heat dissipation return circuit, the motor heat dissipation return circuit includes motor radiator, first tee bend, the second tee bend, first water pump, the third tee bend, the electron three-way valve, electron cross valve and connecting tube, motor radiator, first tee bend, the second tee bend, first water pump, connect gradually through connecting tube between the third tee bend, one of them mouth of pipe rear portion of third tee bend loops through the tube coupling machine that charges, machine controller, driving motor, the electron cross valve includes first valve port, the second valve port, third valve port and fourth valve port, driving motor's coolant liquid export is connected to the third valve port, the electron three-way valve is connected to first valve port, the motor radiator is connected to the electron three-way valve, the exit in electric fan heater return circuit is connected respectively to fourth valve port and second valve port. The cooling system for the driving motor of the electric automobile can reduce the electric quantity consumption of the battery, simultaneously prolong the endurance mileage and prolong the service life of the electronic fan, and has high practicability.

Description

Cooling system for driving motor of electric automobile

Technical Field

The utility model relates to an electric automobile driving motor cooling system relates to car actuating system heat dissipation technical field.

Background

The cooling process of the driving motor of the currently used electric automobile mainly comprises the following steps: through water pump, machine that charges, driving motor, take electronic fan assembly's radiator and expansion tank formation closed circuit for driving motor and the heat dissipation of machine that charges, though whole cooling system's simple structure arranges conveniently, and is with low costs, its electronic fan is because long-term work, needs to consume more electric quantity, reduces the continuation of the journey mileage of electric motor car battery, can reduce life moreover, therefore increase operation and maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the cooling system for the driving motor of the electric automobile effectively improves the endurance mileage of a battery and the service life of a fan.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the cooling system comprises a motor heat dissipation loop, wherein the motor heat dissipation loop comprises a motor radiator, a first tee joint, a second tee joint, a first water pump, a third tee joint, an electronic three-way valve, an electronic four-way valve and a connecting pipeline, the motor radiator, the first tee joint, the second tee joint, the first water pump and the third tee joint are sequentially connected through the connecting pipeline, the rear part of one pipe orifice of the third tee joint is sequentially connected with a charger, a motor controller and a driving motor through a pipeline, the electronic four-way valve comprises a first valve port, a second valve port, a third valve port and a fourth valve port, the third valve port is connected with a cooling liquid outlet of the driving motor, the first valve port is connected with the electronic three-way valve, the electronic three-way valve is connected with the motor radiator, and the fourth valve port and the second valve port are respectively connected with an inlet and an outlet of a fan heater loop.

Preferably, the electronic three-way valve is communicated with the first three-way valve through a pipeline.

Preferably, the warm air blower loop comprises a fourth tee joint, the warm air blower and a second water pump which are sequentially connected through a pipeline, the rear part of a fourth valve port of the electronic four-way valve passes through the fourth tee joint of the pipeline, and a liquid outlet of the second water pump is communicated with the second valve port through the pipeline.

Preferably, a water heating heater is connected between the fourth valve port of the electronic four-way valve and the fourth tee.

Preferably, the other nozzle of the second tee joint is connected with an expansion kettle.

Preferably, the other pipe orifice of the third tee is connected with an expansion kettle through a pipeline, and the expansion kettle is connected with the other pipe orifice of the fourth tee through a pipeline.

Compared with the prior art, the utility model discloses an useful part is: electric automobile driving motor cooling system can use the electric fan heater to cool down for the coolant liquid under low temperature environment, and the electric fan heater transmits absorptive coolant liquid temperature to the driver's cabin, can improve the interior temperature of driver's cabin simultaneously, in addition, through closing electronic fan, can reduce power consumption, prolongs continuation of the journey mileage and electronic fan life simultaneously, therefore the practicality is high.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic view of the coolant flow circuit in a high temperature environment;

fig. 2 is a schematic view of the coolant flow circuit in a low temperature environment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention:

as shown in fig. 1 and 2, the cooling system for the driving motor of the electric vehicle is mainly used for cooling the driving motor and the charger of the electric vehicle, and although the current commonly used motor cooling system can achieve a better cooling effect, the current commonly used motor cooling system can affect the cruising performance of the battery and the service life of the electronic fan, the utility model discloses a new cooling loop design is carried out to the above problems, the cooling loop comprises a motor cooling loop, the motor cooling loop comprises a motor radiator 1, a first tee joint 2, a second tee joint 3, a first water pump 4, a third tee joint 5, an electronic three-way valve 6, an electronic four-way valve 7 and a connecting pipeline 8, the motor radiator, the first tee joint, the second tee joint, the first water pump and the third tee joint are sequentially connected through the connecting pipeline, and one of the rear parts of the third tee joint sequentially passes through the pipeline to connect the charger 9 and the motor controller 10, A driving motor 11, the electronic four-way valve including a first valve port 701, a second valve port 702, a third valve port 703 and a fourth valve port 704, the third valve port being connected to a coolant outlet of the driving motor, the first valve port being connected to an electronic three-way valve, the electronic three-way valve being connected to a motor radiator, the fourth valve port and the second valve port being connected to an inlet and an outlet of a fan heater loop, respectively, the electronic three-way valve being communicated with another pipe port of the first three-way valve via a return pipe 12, the fan heater loop including a fourth three-way valve 15, a fan heater 16 and a second water pump 17, which are connected in sequence via pipes, a rear portion of the fourth valve port of the electronic four-way valve being connected to the fourth three-way valve via a pipe, a coolant outlet of the second water pump being communicated to the second valve port via a pipe, the coolant capable of dissipating heat from the driving motor being circulated in the functional components and the pipes, thereby dissipating heat from the driving motor, the motor radiator is of the existing radiator structure, and the electronic three-way valve and the electronic four-way valve are of common electronic valve structures commonly used in the market at present.

In this embodiment, a water heating heater 13 is connected between the fourth valve port of the electronic four-way valve and the fourth tee, and in addition, in order to improve the heat dissipation effect, another pipe port of the second tee is connected with an expansion kettle 14, another pipe port of the third tee is connected with the expansion kettle through an exhaust pipe, and the expansion kettle is connected with another pipe port of the fourth tee through a pipe.

In the specific application process, when the ambient temperature of the driving motor is higher, the fan heater does not participate in the work, the motor radiator is adopted for cooling work, the specific flowing loop of the specific cooling liquid is that the cooling liquid firstly flows out through the motor radiator, then the cooling liquid passes through a first tee joint, a second tee joint, a first water pump, a third tee joint, a charger, a motor controller and a driving motor in sequence, and then the charger, the motor controller and the driving motor are cooled, the cooling liquid after absorbing heat flows back to a motor radiator through a third valve port, a first valve port and an electronic three-way valve of the electronic four-way valve again to be refrigerated again, and then the next heat dissipation circulation is carried out, at the moment, the cooling liquid also flows to the electronic three-way valve through a return pipeline through the first tee joint and then flows back to the motor radiator, so that the flow of the cooling liquid in the pipeline is controlled, and cooling balance is realized; and when the ambient temperature that driving motor located is lower, the electric fan heater during operation this moment, through the different exports of control electron tee bend and cross valve switching, changes the coolant liquid circulation direction, utilizes the electric fan heater to cool down for the coolant liquid, can close radiator electronic fan this moment, and the flow loop of specific coolant liquid is: after passing through the charger, the motor controller and the driving motor, the cooling liquid sequentially passes through a third valve port, a fourth valve port, a water heating heater, a fourth four-way valve, a fan heater, a second water pump, a second valve port, an electronic three-way valve, a backflow pipeline, a first three-way valve, a second three-way valve, a first water pump and a third three-way valve of the electronic four-way valve, and flows through the charger, the motor controller and the driving motor again for cooling.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an electric automobile driving motor cooling system which characterized in that: the motor heat dissipation loop comprises a motor heat dissipation loop, wherein the motor heat dissipation loop comprises a motor radiator, a first tee joint, a second tee joint, a first water pump, a third tee joint, an electronic three-way valve, an electronic four-way valve and a connecting pipeline, the motor radiator, the first tee joint, the second tee joint, the first water pump and the third tee joint are sequentially connected through the connecting pipeline, the rear part of one pipe orifice of the third tee joint is sequentially connected with a charger, a motor controller and a driving motor through a pipeline, the electronic four-way valve comprises a first valve port, a second valve port, a third valve port and a fourth valve port, the third valve port is connected with a cooling liquid outlet of the driving motor, the first valve port is connected with the electronic three-way valve, the electronic three-way valve is connected with the motor radiator, and the fourth valve port and the second valve port are respectively connected with an inlet and an outlet of the fan heater loop.

2. The cooling system for the driving motor of the electric vehicle as claimed in claim 1, wherein: the electronic three-way valve is communicated with the first three-way valve through a pipeline.

3. The cooling system for the driving motor of the electric vehicle as claimed in claim 1, wherein: the warm air blower loop comprises a fourth tee joint, a warm air blower and a second water pump which are sequentially connected through a pipeline, the rear part of a fourth valve port of the electronic four-way valve is communicated with the second valve port through the pipeline fourth tee joint, and a liquid outlet of the second water pump is communicated with the second valve port through the pipeline.

4. The cooling system for the driving motor of the electric vehicle as claimed in claim 1, wherein: and a water heating heater is connected between a fourth valve port of the electronic four-way valve and a fourth tee joint.

5. The cooling system for the driving motor of the electric vehicle as claimed in claim 1, wherein: the other pipe orifice of the second tee joint is connected with an expansion kettle.

6. The cooling system of the electric vehicle driving motor according to claim 5, wherein: and the other pipe orifice of the third tee is connected with an expansion kettle through a pipeline, and the expansion kettle is connected with the other pipe orifice of the fourth tee through a pipeline.