CN114475222B - Thermal management system of electric mining truck and electric mining truck - Google Patents
Thermal management system of electric mining truck and electric mining truck Download PDFInfo
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- CN114475222B CN114475222B CN202210231365.XA CN202210231365A CN114475222B CN 114475222 B CN114475222 B CN 114475222B CN 202210231365 A CN202210231365 A CN 202210231365A CN 114475222 B CN114475222 B CN 114475222B
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- radiator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention provides a thermal management system of an electric mining truck, which comprises the following components: the cooling liquid flows into the electronic water pump from the water outlet of the radiator under the control of the heat management system controller, enters the four-in-one controller cooling unit through the electronic water pump to cool and dissipate heat of the four-in-one controller, flows into each group of independent cooling units in parallel through the water outlet of the four-in-one controller cooling unit to cool and dissipate heat, and finally flows into the radiator through the water inlet of the radiator to cool and dissipate heat of air; the invention further provides an electric mining truck, and the heat management efficiency of the electric mining truck is effectively improved.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to a thermal management system of an electric mining truck and the electric mining truck.
Background
With the rapid development and maturity of technologies such as an electronic fan and an electronic water pump, reliable guarantee is provided for the development of a thermal management system of an electric mining truck, a reasonable system is relied on to construct and optimize control logic, and the control of cooling air quantity is realized by controlling the opening quantity and the rotating speed of the electronic fan, so that the effective control of the temperature of cooling unit components is realized, the components are ensured to be at the optimal working temperature, the maximum function is exerted, the stability and the safety of the component performance are ensured, and the service life of the components is prolonged.
In the prior art, the electric mining truck heat management system mainly dissipates heat of a part to be cooled on a single circuit, and cannot realize the compatibility and unification of cooling and heat dissipation of a plurality of circuits, so that the heat management efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems in the prior art, innovatively provides a thermal management system of an electric mining truck, effectively solves the problem of low thermal management efficiency of the electric mining truck caused by the prior art, and effectively improves the thermal management efficiency of the electric mining truck.
A first aspect of the present invention provides a thermal management system for an electric mining truck, comprising: the cooling liquid flows into the electronic water pump from the water outlet of the radiator under the control of the heat management system controller, enters the four-in-one controller cooling unit through the electronic water pump to cool and dissipate heat of the four-in-one controller, flows into each group of independent cooling units in parallel through the water outlet of the four-in-one controller cooling unit to cool and dissipate heat, and finally flows into the radiator through the water inlet of the radiator to cool and dissipate heat of air to form a complete cooling and dissipating circulation in the heat management system; each group of independent cooling units connected in parallel is used for radiating and cooling one path of motor controller, driving motor and retarder.
Optionally, each group of independent cooling units comprises a motor controller cooling module for radiating and cooling the motor controller, a driving motor cooling module for radiating and cooling the driving motor and a retarder heat exchanger module for cooling and cooling the retarder, and the motor controller cooling module, the driving motor cooling module and the retarder heat exchanger module are sequentially connected in series.
Optionally, a plurality of electronic fans are installed on the radiator, and temperature sensors are respectively arranged at the water inlet and the water outlet of the radiator and used for respectively acquiring the temperature at the water inlet and the temperature at the water outlet of the radiator, and the output ends of the temperature sensors are all in communication connection with the input end of the thermal management system controller.
Further, the thermal management system controller controls the rotation speed of the plurality of electronic fans according to the temperature at the water inlet and the temperature at the water outlet of the radiator.
Further, the thermal management system controller controls the rotation speed of the plurality of electronic fans according to the temperature of the water inlet and the temperature of the water outlet of the radiator, specifically:
when the temperature of the water inlet of the radiator is monitored to be lower than a first preset temperature threshold value, the plurality of electronic fans do not work; when the temperature of the water inlet of the radiator is monitored to be higher than a first preset temperature threshold value and lower than a second preset temperature threshold value, half of the electronic fans start to work, and the rotating speed of the electronic fans in a working state is increased along with the increase of the temperature of the water inlet of the radiator; when the temperature of the water inlet of the radiator reaches a second preset temperature threshold value, the electronic fans in the working state rotate at full speed;
when the temperature of the water inlet of the radiator is monitored to exceed the second preset temperature threshold value, all the electronic fans start to work, the rotating speed of the electronic fans in a working state is increased along with the temperature increase of the water inlet of the radiator, and when the temperature of the water inlet of the radiator is greater than or equal to the third preset temperature, all the electronic fans work at full speed.
Further, the method further comprises the following steps: and during the operation of the electronic fans on the radiator, when the temperature of the water outlet of the radiator exceeds a fourth preset temperature threshold or a temperature sensor at the water inlet of the radiator or a temperature sensor at the water outlet of the radiator fails, all the electronic fans are operated at full speed, wherein the fourth preset temperature threshold is larger than the first preset temperature threshold and smaller than the second preset temperature threshold.
Optionally, the expansion tank is installed above the radiator, the side surface of the expansion tank is respectively provided with a gas leakage port and a water return port, the gas leakage port is connected with the radiator through a gas leakage pipeline, and the water return port is connected with the radiator 3 through a water return pipeline.
Optionally, each group of independent cooling units is connected with the four-in-one controller cooling unit through a four-in-one water outlet rubber pipe and a water inlet rubber pipe, so that cooling liquid flows from the four-in-one controller cooling unit to each group of independent cooling units, and the motor controller, the driving motor and the retarder are subjected to heat dissipation and cooling.
Further, the cooling liquid flowing out of each group of independent cooling units enters the radiator through the retarder water outlet rubber pipe and the radiator water inlet rubber pipe and is cooled by air cooling.
The second aspect of the invention provides an electric mining truck, comprising the thermal management system of the electric mining truck according to the first aspect of the invention.
The technical scheme adopted by the invention comprises the following technical effects:
1. the invention comprises at least two groups of independent cooling units which are respectively connected in parallel and is used for radiating and cooling the motor controllers, the driving motors and the retarders on a plurality of lines, so that the problem of low thermal management efficiency of the electric mining truck caused by the prior art is effectively solved, and the thermal management efficiency of the electric mining truck is effectively improved.
2. According to the technical scheme, the radiator is provided with the plurality of electronic fans, the water inlet and the water outlet of the radiator are respectively provided with the temperature sensors for respectively acquiring the temperature of the water inlet and the temperature of the water outlet of the radiator, the thermal management system controller controls the working quantity and the rotating speed of the plurality of electronic fans according to the acquired temperature of the water inlet and the acquired temperature of the water outlet of the radiator, the control of cooling air quantity is realized, the electric mine car can adapt to multi-working-condition operation, the optimal working temperature of each part to be cooled is ensured, and the maximum function is exerted.
3. In the technical scheme of the invention, during the working period of the electronic fans on the radiator, when the temperature of the water outlet of the radiator exceeds 45 ℃ or the temperature sensor at the water inlet of the radiator or the temperature sensor at the water outlet of the radiator fails, all the electronic fans work at full speed, so that the components to be cooled on each circuit can be cooled and radiated in time, and the damage to the components caused by untimely cooling and radiation is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
For a clearer description of embodiments of the invention or of the solutions of the prior art, reference will be made to the accompanying drawings, which are used in the description of the embodiments or of the prior art, and it will be obvious to those skilled in the art that other drawings can be obtained from these without inventive labour.
FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention;
FIG. 2 is an isometric view of a first system according to an embodiment of the invention;
fig. 3 is a schematic diagram of a system according to a second embodiment of the present invention.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present invention.
Example 1
As shown in fig. 1, the present invention provides a thermal management system of an electric mining truck, comprising: the system comprises an expansion water tank 1, a thermal management system controller 2, a radiator 3, an electronic water pump 4, four-in-one controller cooling units 5 and at least two groups of independent cooling units 6 which are respectively connected in parallel, wherein cooling liquid flows into the electronic water pump 4 from a water outlet of the radiator 3 under the control of the thermal management system controller 2, enters the four-in-one controller cooling units 5 through the electronic water pump 4, cools and dissipates the four-in-one controller, flows into each group of independent cooling units 6 which are respectively connected in parallel through the water outlet of the four-in-one controller cooling units 5 for cooling and dissipating heat, and finally flows into the radiator 3 through a water inlet of the radiator 3 for air cooling and dissipating heat to form a complete cooling and dissipating circulation in the thermal management system; wherein, each group of independent cooling units 6 connected in parallel is used for radiating and cooling a motor controller, a driving motor and a retarder.
Wherein, each group of independent cooling units 6 comprises a motor controller cooling module 61 for carrying out heat dissipation and cooling on a motor controller, a driving motor cooling module 62 for carrying out heat dissipation and cooling on a driving motor and a retarder heat exchanger module 63 for carrying out cooling and cooling on a retarder, and the motor controller cooling module 61, the driving motor cooling module 62 and the retarder heat exchanger module 63 are sequentially connected in series.
Specifically, a plurality of electronic fans are installed on the radiator 3, and temperature sensors are respectively arranged at the water inlet and the water outlet of the radiator 3 and used for respectively acquiring the temperature at the water inlet and the temperature at the water outlet of the radiator 3, and the output ends of the temperature sensors are all in communication connection with the input end of the thermal management system controller 2. In this embodiment, the number of the electronic fans is 4, or may be other number, which is flexibly adjusted according to the actual situation, and the present invention is not limited herein.
The thermal management system controller 2 controls the rotation speed of the plurality of electronic fans according to the temperature of the water inlet of the radiator 3 and the temperature of the water outlet, specifically:
when the temperature of the water inlet of the radiator 3 is monitored to be lower than a first preset temperature threshold value, the plurality of electronic fans do not work; when the temperature of the water inlet of the radiator is monitored to be higher than a first preset temperature threshold value and lower than a second preset temperature threshold value, half of the electronic fans start to work, and the rotating speed of the electronic fans in a working state is increased along with the increase of the temperature of the water inlet of the radiator; when the temperature of the water inlet of the radiator reaches a second preset temperature threshold value, the electronic fans in the working state rotate at full speed;
when the temperature of the water inlet of the radiator is monitored to exceed the second preset temperature threshold value, all the electronic fans start to work, the rotating speed of the electronic fans in a working state is increased along with the temperature increase of the water inlet of the radiator, and when the temperature of the water inlet of the radiator is greater than or equal to the third preset temperature, all the electronic fans work at full speed.
The first preset temperature threshold may be 43 ℃, the second preset temperature threshold may be 55 ℃, the third preset temperature threshold may be 65 ℃, and the first preset temperature threshold may be flexibly adjusted according to practical situations, which is not limited herein.
Further, during the operation of the electronic fans on the radiator, when the temperature of the water outlet of the radiator exceeds a fourth preset temperature threshold or the temperature sensor at the water inlet of the radiator or the temperature sensor at the water outlet of the radiator fails, all the electronic fans operate at full speed, wherein the fourth preset temperature threshold is greater than the first preset temperature threshold and less than the second preset temperature threshold, specifically, the fourth preset temperature threshold may be 45 ℃, and may also be flexibly adjusted according to the actual situation.
As shown in fig. 2-3, the expansion tank 1 is mounted above the radiator 3 through bolts, the side surface of the expansion tank 1 is respectively provided with a gas leakage port and a water return port, the gas leakage port is connected with the radiator 3 through a gas leakage pipeline 1-4, and the water return port is connected with the radiator 3 through a water return pipeline 1-5. The heat management system controller 2 is fixed above the radiator 3, and controls the working quantity and the rotating speed of fans on the radiator 3 according to the water inlet temperature and the water outlet temperature of the radiator 3, so that the cooling air quantity control is realized, and the electric mine car can adapt to multi-working-condition operation. The radiator 3 is fixed on the upper wing surface of the frame 1-1 through the bracket 1-3, the rubber block 1-2 and bolts. The electronic water pump 4 is fixed on the frame 1-1 through a cross beam 4-1, is connected with the radiator 3 through a radiator water outlet rubber tube 4-2, and is connected with the four-in-one controller cooling unit 5 through the water pump water outlet rubber tube 4-3. The four-in-one controller cooling unit 5 is fixed on the frame 1-1 through a bracket 5-1.
In the present embodiment, two sets of independent cooling units 6 are taken as an example, and in each set of independent cooling units 6, the motor controller cooling module 61 is mounted on the side of the frame 1-1 through the bracket 61-1, and the number of the motor controller cooling modules is 2. The driving motor cooling modules 62 are fixed on the lower wing surface of the frame 1-1 through the brackets 62-1, and the number of the driving motor cooling modules is 2. The retarder heat exchanger modules 63 are located behind the drive motor cooling modules 62, 2 in number.
Each group of independent cooling units 6 is connected with the four-in-one controller cooling unit 5 through a four-in-one water outlet rubber pipe 61-6, a tee joint 61-3 and two motor controller water inlet rubber pipes 61-2, so that cooling liquid flows from the four-in-one controller cooling unit to the motor controller cooling module 61 in each group of independent cooling units 6, and the cooling liquid dissipates heat and cools one path of motor controllers, a driving motor and a retarder.
The motor controller cooling module 61 and the 2 independent driving motor cooling modules 62 are respectively connected through the water inlet rubber pipe 6-4 and the water inlet rubber pipe 6-5 of the driving motor cooling module 62, so that cooling liquid flows from the motor controller cooling unit 6 to the driving motor cooling unit 8 to cool and dissipate heat of the driving motor. The retarder heat exchanger module 63 is connected with the driving motor cooling module 62 through retarder water inlet rubber pipes 63-4 and 63-5, so that cooling liquid flows from the driving motor cooling module 62 to the retarder heat exchanger module 63 to cool and dissipate heat of the retarder. At this time, the temperature of the cooling liquid flowing out of the retarder heat exchanger module 63 is higher than the temperature of the water outlet of the radiator 3, and the cooling liquid enters the radiator 3 through the 2 retarder water outlet rubber pipes 63-3, the tee joint 63-2 and the radiator water inlet rubber pipe 63-1 to be cooled by air cooling, so that a cycle is formed.
The invention comprises at least two groups of independent cooling units which are respectively connected in parallel and is used for radiating and cooling the motor controllers, the driving motors and the retarders on a plurality of lines, so that the problem of low thermal management efficiency of the electric mining truck caused by the prior art is effectively solved, and the thermal management efficiency of the electric mining truck is effectively improved.
According to the technical scheme, the radiator is provided with the plurality of electronic fans, the water inlet and the water outlet of the radiator are respectively provided with the temperature sensors for respectively acquiring the temperature of the water inlet and the temperature of the water outlet of the radiator, the thermal management system controller controls the working quantity and the rotating speed of the plurality of electronic fans according to the acquired temperature of the water inlet and the acquired temperature of the water outlet of the radiator, the control of cooling air quantity is realized, the electric mine car can adapt to multi-working-condition operation, the optimal working temperature of each part to be cooled is ensured, and the maximum function is exerted.
In the technical scheme of the invention, during the working period of the electronic fans on the radiator, when the temperature of the water outlet of the radiator exceeds 45 ℃ or the temperature sensor at the water inlet of the radiator or the temperature sensor at the water outlet of the radiator fails, all the electronic fans work at full speed, so that the components to be cooled on each circuit can be cooled and radiated in time, and the damage to the components caused by untimely cooling and radiation is avoided.
Example two
The technical scheme of the invention also provides an electric mining truck, which comprises a thermal management system of the electric mining truck in the first embodiment.
The invention comprises at least two groups of independent cooling units which are respectively connected in parallel and is used for radiating and cooling the motor controllers, the driving motors and the retarders on a plurality of lines, so that the problem of low thermal management efficiency of the electric mining truck caused by the prior art is effectively solved, and the thermal management efficiency of the electric mining truck is effectively improved.
According to the technical scheme, the radiator is provided with the plurality of electronic fans, the water inlet and the water outlet of the radiator are respectively provided with the temperature sensors for respectively acquiring the temperature of the water inlet and the temperature of the water outlet of the radiator, the thermal management system controller controls the working quantity and the rotating speed of the plurality of electronic fans according to the acquired temperature of the water inlet and the acquired temperature of the water outlet of the radiator, the control of cooling air quantity is realized, the electric mine car can adapt to multi-working-condition operation, the optimal working temperature of each part to be cooled is ensured, and the maximum function is exerted.
In the technical scheme of the invention, during the working period of the electronic fans on the radiator, when the temperature of the water outlet of the radiator exceeds 45 ℃ or the temperature sensor at the water inlet of the radiator or the temperature sensor at the water outlet of the radiator fails, all the electronic fans work at full speed, so that the components to be cooled on each circuit can be cooled and radiated in time, and the damage to the components caused by untimely cooling and radiation is avoided.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (6)
1. A thermal management system for an electric mining truck, comprising: the cooling liquid flows into the electronic water pump from the water outlet of the radiator under the control of the heat management system controller, enters the four-in-one controller cooling unit through the electronic water pump to cool and dissipate heat of the four-in-one controller, flows into each group of independent cooling units in parallel through the water outlet of the four-in-one controller cooling unit to cool and dissipate heat, and finally flows into the radiator through the water inlet of the radiator to cool and dissipate heat of air to form a complete cooling and dissipating circulation in the heat management system; each group of independent cooling units connected in parallel is used for radiating and cooling one path of motor controller, driving motor and retarder;
the radiator is provided with a plurality of electronic fans, a water inlet and a water outlet of the radiator are respectively provided with a temperature sensor, the temperature sensors are used for respectively acquiring the temperature at the water inlet and the temperature at the water outlet of the radiator, and the output ends of the temperature sensors are all in communication connection with the input end of the thermal management system controller; the thermal management system controller controls the rotating speeds of the plurality of electronic fans according to the temperature at the water inlet and the temperature at the water outlet of the radiator; the heat management system controller is used for controlling the rotating speeds of the plurality of electronic fans according to the temperature of the water inlet of the radiator and the temperature of the water outlet of the radiator, and specifically comprises the following steps:
when the temperature of the water inlet of the radiator is monitored to be lower than a first preset temperature threshold value, the plurality of electronic fans do not work; when the temperature of the water inlet of the radiator is monitored to be higher than a first preset temperature threshold value and lower than a second preset temperature threshold value, half of the electronic fans start to work, and the rotating speed of the electronic fans in a working state is increased along with the increase of the temperature of the water inlet of the radiator; when the temperature of the water inlet of the radiator reaches a second preset temperature threshold value, the electronic fans in the working state rotate at full speed;
when the temperature of the water inlet of the radiator is monitored to exceed a second preset temperature threshold value, all the electronic fans start to work, the rotating speed of the electronic fans in a working state is increased along with the increase of the temperature of the water inlet of the radiator, and when the temperature of the water inlet of the radiator is greater than or equal to a third preset temperature, all the electronic fans work at full speed;
and during the operation of the electronic fans on the radiator, when the temperature of the water outlet of the radiator exceeds a fourth preset temperature threshold or a temperature sensor at the water inlet of the radiator or a temperature sensor at the water outlet of the radiator fails, all the electronic fans are operated at full speed, wherein the fourth preset temperature threshold is larger than the first preset temperature threshold and smaller than the second preset temperature threshold.
2. The thermal management system of an electric mining truck according to claim 1, wherein each set of independent cooling units includes a motor controller cooling module for cooling the motor controller, a drive motor cooling module for cooling the drive motor, and a retarder heat exchanger module for cooling the retarder, the motor controller cooling module, the drive motor cooling module, and the retarder heat exchanger module being in series in order.
3. The thermal management system of the electric mining truck according to claim 1, wherein the expansion tank is installed above the radiator, a gas leakage port and a water return port are respectively reserved on the side face of the expansion tank, the gas leakage port is connected with the radiator through a gas leakage pipeline, and the water return port is connected with the radiator through a water return pipeline.
4. The thermal management system of the electric mining truck according to claim 1, wherein each group of independent cooling units is connected with the four-in-one controller cooling unit through a four-in-one water outlet rubber pipe and a water inlet rubber pipe, so that cooling liquid flows from the four-in-one controller cooling unit to each group of independent cooling units, and one path of motor controller, driving motor and retarder are subjected to heat dissipation and cooling.
5. The thermal management system of the electric mining truck according to claim 4, wherein the cooling liquid flowing out of each group of independent cooling units enters the radiator through the retarder water outlet rubber pipe and the radiator water inlet rubber pipe and is cooled by air cooling.
6. An electric mining truck comprising the thermal management system of the electric mining truck of any one of claims 1-5.
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| CN202210231365.XA CN114475222B (en) | 2022-03-09 | 2022-03-09 | Thermal management system of electric mining truck and electric mining truck |
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