CN210502252U - New forms of energy passenger train cooling system - Google Patents
New forms of energy passenger train cooling system Download PDFInfo
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- CN210502252U CN210502252U CN201921252955.0U CN201921252955U CN210502252U CN 210502252 U CN210502252 U CN 210502252U CN 201921252955 U CN201921252955 U CN 201921252955U CN 210502252 U CN210502252 U CN 210502252U
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Abstract
The utility model discloses a new forms of energy passenger train cooling system, include: the system comprises a driving motor, a heat dissipation device, a first oil temperature sensor, an oil tank, an oil pump, a cooling loop and a vehicle control unit; the oil pump is provided with an oil outlet and an oil inlet, one end of the cooling loop is connected with the oil outlet, and the other end of the cooling loop is connected with the oil inlet to form a loop; the oil delivery port of the oil tank is connected to the oil inlet of the oil pump through a pipeline; the driving motor, the first oil temperature sensor and the heat dissipation device are sequentially arranged on the cooling loop; the heat dissipation device and the first oil temperature sensor are electrically connected with the vehicle control unit. The system adopts a mode of directly cooling the stator or the rotor inside the driving motor by oil cooling, so that the internal temperature of the driving motor can be effectively reduced, and the cooling efficiency is improved. Meanwhile, the control mode that the starting and stopping of the cooling fan and the rotating speed of the oil pump are determined by detecting the oil temperature is adopted, and the power loss of the cooling fan and the oil pump is reduced.
Description
Technical Field
The utility model relates to a new forms of energy field especially relates to a new forms of energy passenger train cooling system.
Background
At present, new energy passenger cars are greatly supported, and the market reservation quantity is increasingly considerable after the new energy passenger cars in China are developed for several years. The cooling system of the driving system of the new energy passenger car mainstream is water cooling, and the cooling system is a motor shell for cooling, and the cooling liquid is a mixture of purified water and glycol, so that the winding cannot be directly cooled, the heat of the motor can be taken away by the cooling liquid in the water channel only by transmitting the outside layer by layer, the temperature of the motor winding is easy to accumulate, a local hot spot is formed, and the over-temperature alarm of the motor is easy to cause when high-power output is encountered, and the running of the vehicle is influenced. With the increasing demand of the market for the power density of the driving motor, the water cooling cannot meet the requirements of customers.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a new forms of energy passenger train cooling system can effectively reduce the inside temperature of driving motor, improves cooling efficiency, reduces the loss of power consumption of radiator fan and oil pump.
The utility model discloses a new forms of energy passenger train cooling system, include:
the system comprises a driving motor, a heat dissipation device, a first oil temperature sensor, an oil tank, an oil pump, a cooling loop and a vehicle control unit; the oil pump is provided with an oil outlet and an oil inlet, one end of the cooling loop is connected with the oil outlet, and the other end of the cooling loop is connected with the oil inlet to form a loop;
the oil delivery port of the oil tank is connected to the oil inlet of the oil pump through a pipeline;
the driving motor, the first oil temperature sensor and the heat dissipation device are sequentially arranged on the cooling loop;
the heat dissipation device and the first oil temperature sensor are electrically connected with the whole vehicle controller;
the driving motor is provided with a cooling channel, and two ends of the cooling channel are connected with the cooling loop;
the rotor and/or the stator of the drive motor are arranged in the cooling channel.
As above, the cooling device includes a radiator and a heat dissipation fan, the cooling circuit passes through the radiator, the heat dissipation fan is fixed on the radiator, and an air outlet of the heat dissipation fan faces the cooling circuit.
The cooling system of the new energy bus further comprises a plurality of in-vehicle controllers;
the plurality of in-vehicle controllers are arranged on the cooling loop and are positioned between the oil outlet of the oil pump and the driving motor.
The cooling system of the new energy bus further comprises a second oil temperature sensor;
the second oil temperature sensor is arranged at a position, close to an oil outlet of the oil pump, of the cooling circuit, and the second oil temperature sensor is electrically connected with the whole vehicle controller.
The cooling system of the new energy bus further comprises a flow meter;
the flowmeter is arranged on the cooling circuit and electrically connected with the vehicle control unit.
The cooling system of the new energy bus further comprises a first exhaust pipe and a second exhaust pipe;
one ends of the first exhaust pipe and the second exhaust pipe are arranged on the cooling loop, and the other ends of the first exhaust pipe and the second exhaust pipe are connected with the oil tank;
one end of the first exhaust pipe is arranged at a position close to the oil inlet;
one end of the second exhaust pipe is arranged at a position close to the oil outlet.
The cooling system of the new energy bus, wherein the oil tank comprises an oil guide pipe;
the oil guide pipe is connected to a cooling loop in the heat dissipation device.
The utility model discloses a new forms of energy passenger train cooling system adopts the inside stator of oil cooling direct cooling motor or rotor mode, can effectively reduce the inside temperature of driving motor, improves cooling efficiency. Meanwhile, the control mode that the starting and stopping of the cooling fan and the rotating speed of the oil pump are determined by detecting the oil temperature is adopted, and the power loss of the cooling fan and the oil pump is reduced.
Drawings
Fig. 1 is the schematic diagram of the cooling system of the new energy passenger car provided by the embodiment of the invention.
Reference numerals:
the system comprises a driving motor 1, a heat dissipation device 2, a heat dissipation fan 21, a radiator 22, a first oil temperature sensor 31, an oil tank 4, an oil tank oil delivery port 42, an oil pump 5, an oil pump oil outlet 51, an oil pump oil inlet 52, a cooling circuit 6, a vehicle control unit 7, a first controller 81, a second controller 82, a flowmeter 9, a first exhaust pipe 11, a second exhaust pipe 12 and an oil guide pipe 41.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1, an embodiment of the present invention discloses a new energy bus cooling system, which includes: the system comprises a driving motor 1, a heat dissipation device 2, a first oil temperature sensor 31, an oil tank 4, an oil pump 5, a cooling circuit 6 and a vehicle control unit 7.
In the present embodiment, the oil pump 5 has an oil outlet 51 and an oil inlet 52, one end of the cooling circuit 6 is connected to the oil outlet 51, and the other end of the cooling circuit 6 is connected to the oil inlet 52 to form a circuit.
The oil delivery port 42 of the oil tank 4 is connected to the oil inlet port 52 of the oil pump 5 through a pipe to supply the cooling oil to the cooling circuit 6.
The driving motor 1, the first oil temperature sensor 31, and the heat sink 2 are sequentially disposed on the cooling circuit 6.
The driving motor 1 is formed with a cooling channel, and both ends of the cooling channel are connected to the cooling circuit 6.
The rotor and/or the stator of the drive motor 1 is arranged in the cooling channel.
Specifically, the drive motor 1 is formed with a cooling passage, and both ends of the cooling passage are connected to the cooling circuit 6, so that the cooling oil in the cooling circuit 6 can enter the drive motor 1 through the cooling passage and flow back into the cooling circuit 6 from the drive motor 1. In addition, the rotor and/or the stator of the driving motor 1 are disposed in the cooling channel, so that the cooling oil flowing in the cooling channel can directly cool the rotor and/or the stator of the driving motor 1, thereby improving the cooling efficiency.
The heat dissipation device 2 and the first oil temperature sensor 31 are electrically connected with the vehicle control unit 7.
Specifically, in the present embodiment, the heat dissipation device 2 includes a heat sink 22 and a heat dissipation fan 21, the cooling circuit 6 passes through the heat sink 22, the heat dissipation fan 21 is fixed on the heat sink 22, and an air outlet of the heat dissipation fan 21 faces the cooling circuit 6. The purpose of this is that the radiator fan 21 cools the radiator 22, and the heat dissipation of the radiator 22 is accelerated, so that the radiator 22 cools the cooling oil quickly.
Specifically, a plurality of in-vehicle controllers may also be included.
In the present embodiment, the plurality of in-vehicle controllers are disposed on the cooling circuit 6 and between the oil outlet 51 of the oil pump 5 and the driving motor 1.
For example, as shown in fig. 1, the in-vehicle controller may include a first controller 81 and a second controller 82. These in-vehicle controllers can be used for driving control, control of in-vehicle components, and the like.
The in-vehicle controllers are also arranged on the cooling circuit 6, so that the in-vehicle controllers can be cooled and radiated through the cooling circuit 6, and the in-vehicle controllers are prevented from being damaged due to continuous operation.
It should be noted that, in other embodiments of the present invention, the number of the in-vehicle controllers may be set according to the actual situation of the vehicle, and the present invention is not limited specifically.
Specifically, a second oil temperature sensor 32 may also be included.
In the present embodiment, the second oil temperature sensor 32 is disposed in the cooling circuit 6 at a position close to the oil outlet 51 of the oil pump 5, and the second oil temperature sensor 32 is electrically connected to the vehicle controller 7.
Wherein, the second oil temperature sensor 32 can detect the temperature of the cooling oil at the oil outlet 51 of the oil pump 5, and can compare with the temperature of the cooling oil detected by the first oil temperature sensor 31 to check the cooling efficiency and effect of the radiator 22.
In particular, a flow meter 9 may also be included.
In the present embodiment, the flow meter 9 is disposed on the cooling circuit 6 and electrically connected to the vehicle control unit 7.
The flow meter 9 is configured to detect a flow rate of the cooling oil in the cooling circuit 6, and send information of the flow rate to the vehicle control unit 7.
Specifically, a first exhaust pipe 11 and a second exhaust pipe 12 may also be included.
In the present embodiment, one end of the first exhaust pipe 11 and one end of the second exhaust pipe 12 are provided in the cooling circuit 6, and the other end is connected to the oil tank 4.
Wherein one end of the first exhaust pipe 11 is disposed at a position close to the oil inlet 52.
Wherein one end of said second exhaust duct 12 is arranged at a position close to the oil outlet 51 for discharging air in the cooling circuit 6.
Specifically, the fuel tank 4 includes a fuel lead pipe 41.
In the present embodiment, the oil guiding pipe 41 is connected to the cooling circuit 6 in the heat sink 2 to replenish the lost cooling oil and discharge the overflowed cooling oil.
The specific working process of this embodiment is as follows:
the oil tank 4 supplies cooling oil, which is driven by the pressurization of the oil pump 5 to circulate in the cooling circuit 6, to the cooling circuit 6 via an oil supply opening 42. Because the in-vehicle controller, the driving motor 1, the heat dissipation device 2 and the like are all arranged on the cooling loop, the heat of the in-vehicle controller and the driving motor 1 can be taken away by the cooling oil in the circulating flow process, and then the cooling oil is cooled by the heat dissipation device 2, so that the effect of continuously dissipating the heat of the in-vehicle controller and the driving motor 1 is achieved.
Further, in the circulating flow process, the first oil temperature sensor 31 and the flow meter 9 may respectively collect the oil temperature and the flow rate of the cooling oil in the cooling circuit 6, and send the oil temperature and the flow rate to the vehicle controller 7, and the vehicle controller 7 determines whether the cooling fan needs to be turned on and whether the rotation speed of the oil pump 5 needs to be adjusted according to the oil temperature and the flow rate.
Specifically, the vehicle controller 7 first determines whether the oil temperature is greater than a set threshold, and if the oil temperature is greater than the set threshold, the vehicle controller 7 controls the cooling fan 21 to be turned on to accelerate the cooling effect of the radiator 22; if the temperature is not greater than the set threshold value, the vehicle control unit 7 controls the cooling fan 21 not to be started, so as to reduce energy consumption. Then, the vehicle control unit 7 further determines whether the current oil temperature is matched with the flow rate by searching an oil temperature-flow rate comparison table, and if not, adjusts the rotating speed of the oil pump 5 according to the current temperature. Particularly, when high-power output is performed, the cooling oil may not be cooled in time, so that the oil temperature of the cooling oil is rapidly increased, at this time, the vehicle control unit 7 determines that the flow rate is insufficient, and sends a rotating speed increasing instruction to the oil pump 5 to increase the circulation speed of the cooling oil, so as to meet the heat dissipation requirement in the circulation.
To sum up, the embodiment of the utility model provides a new forms of energy passenger train cooling system adopts the direct cooling driving motor 1 inside stator or rotor because of the oil utensil at insulating nature, not magnetic conduction, non-flammable, the good characteristic of heat conduction, can effectively reduce driving motor 1 inside temperature, improves cooling efficiency. Meanwhile, a control mode of determining the starting and stopping of the cooling fan 21 and adjusting the rotating speed of the oil pump 5 by detecting the oil temperature is adopted, so that the power loss of the cooling fan 21 and the oil pump 5 is reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A new forms of energy passenger train cooling system characterized by, includes:
the system comprises a driving motor, a heat dissipation device, a first oil temperature sensor, an oil tank, an oil pump, a cooling loop and a vehicle control unit; the oil pump is provided with an oil outlet and an oil inlet, one end of the cooling loop is connected with the oil outlet, and the other end of the cooling loop is connected with the oil inlet to form a loop;
the oil delivery port of the oil tank is connected to the oil inlet of the oil pump through a pipeline;
the driving motor, the first oil temperature sensor and the heat dissipation device are sequentially arranged on the cooling loop;
the heat dissipation device and the first oil temperature sensor are electrically connected with the whole vehicle controller;
the driving motor is provided with a cooling channel, and two ends of the cooling channel are connected with the cooling loop;
the rotor and/or the stator of the drive motor are arranged in the cooling channel.
2. The new energy bus cooling system as claimed in claim 1,
the heat dissipation device comprises a radiator and a heat dissipation fan, the cooling loop passes through the radiator, the heat dissipation fan is fixed on the radiator, and an air outlet of the heat dissipation fan faces the cooling loop.
3. The new energy bus cooling system as claimed in claim 2, further comprising:
a plurality of in-vehicle controllers;
the plurality of in-vehicle controllers are arranged on the cooling loop and are positioned between the oil outlet of the oil pump and the driving motor.
4. The new energy bus cooling system as claimed in claim 3, further comprising:
a second oil temperature sensor;
the second oil temperature sensor is arranged at a position, close to an oil outlet of the oil pump, of the cooling circuit, and the second oil temperature sensor is electrically connected with the whole vehicle controller.
5. The new energy bus cooling system as claimed in claim 4, further comprising:
a flow meter;
the flowmeter is arranged on the cooling circuit and electrically connected with the vehicle control unit.
6. The new energy bus cooling system as claimed in claim 5, wherein the new energy bus cooling system further comprises:
a first exhaust pipe and a second exhaust pipe;
one ends of the first exhaust pipe and the second exhaust pipe are arranged on the cooling loop, and the other ends of the first exhaust pipe and the second exhaust pipe are connected with the oil tank;
one end of the first exhaust pipe is arranged at a position close to the oil inlet;
one end of the second exhaust pipe is arranged at a position close to the oil outlet.
7. The new energy bus cooling system as claimed in claim 1,
the oil tank comprises an oil guide pipe; the oil guide pipe is connected to a cooling loop in the heat dissipation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921252955.0U CN210502252U (en) | 2019-08-05 | 2019-08-05 | New forms of energy passenger train cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921252955.0U CN210502252U (en) | 2019-08-05 | 2019-08-05 | New forms of energy passenger train cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210502252U true CN210502252U (en) | 2020-05-12 |
Family
ID=70587577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921252955.0U Active CN210502252U (en) | 2019-08-05 | 2019-08-05 | New forms of energy passenger train cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210502252U (en) |
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2019
- 2019-08-05 CN CN201921252955.0U patent/CN210502252U/en active Active
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