CN214125080U - Novel cooling device for double-motor gearbox - Google Patents
Novel cooling device for double-motor gearbox Download PDFInfo
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- CN214125080U CN214125080U CN202120128058.XU CN202120128058U CN214125080U CN 214125080 U CN214125080 U CN 214125080U CN 202120128058 U CN202120128058 U CN 202120128058U CN 214125080 U CN214125080 U CN 214125080U
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Abstract
The utility model discloses a novel bi-motor gearbox cools off device, include: the cooling system comprises an expansion water tank, a main radiator connected with the expansion water tank, a first motor controller cooling structure, a second motor controller cooling structure, a first motor cooling structure, a second motor cooling structure, an oil-water cooler and a gearbox cooling structure; the utility model discloses the beneficial effect who has for carried out effectual integrated design to the structure under the prerequisite of guaranteeing heat dissipation mass, utilize the cascaded operating temperature nature of bi-motor gearbox system from the area, the heat dissipation of two sets of machine controller, motor and gearbox has been realized to the rational utilization heat dissipation order, has improved radiating efficiency and heat radiation structure's integrated nature.
Description
Technical Field
The utility model relates to a gearbox cooling arrangement field. More specifically, the utility model relates to a novel bi-motor gearbox cooling device.
Background
With the development of mining vehicles, the requirements of customers on large-tonnage mining dump trucks are higher and higher, but the matching of domestic parts, particularly the engine power system, is very short, and the development of the large-tonnage mining dump trucks is limited to a great extent.
Mine car manufacturers begin to research and develop hybrid vehicle models in order to break through the current predicament, the motors replace part of the demands of the whole car on power, and the motors are required to be cooled by a cooling system to ensure that the motors always work in a proper working range due to the fact that the motors generate a large amount of heat during operation and are sensitive to working temperature.
In a hybrid vehicle type adopting dual-motor driving, heat dissipation needs to be carried out on a dual-motor system in order to enable the motor driving to operate well; in the dual-motor driving system, the working temperature of a motor controller, the working temperature of a motor and the working temperature of a gearbox are different.
The conventional method of cooling alone is adopted for heat dissipation, so that the energy consumption is large, the pipeline is complex, and the conventional driving system is driven by a single motor and is not driven by double motors, so that a high-efficiency energy-saving cooling system aiming at double motors and simplified cooling pipelines is needed.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model also aims to provide a novel double-motor gearbox cooling device which has high structural integration and higher cooling efficiency; the whole vehicle arrangement and the pipeline arrangement are effectively simplified, the system structure is optimized, the final finished vehicle overall structure is simplified, the proper temperature of the system working environment is ensured, and the fault caused by overhigh working temperature is avoided.
To achieve these objects and other advantages in accordance with the purpose of the invention, a novel dual motor transmission cooling device is provided, comprising:
the cooling system comprises an expansion water tank, a main radiator connected with the expansion water tank, a first motor controller cooling structure, a second motor controller cooling structure, a first motor cooling structure, a second motor cooling structure and a gearbox cooling structure;
the main radiator is respectively connected with a first motor controller cooling structure and a second motor controller cooling structure through cooling liquid connecting pipelines, the first motor controller cooling structure is connected with the first motor cooling structure through a cooling liquid pipeline, the second motor controller cooling structure is connected with the second motor cooling structure through a cooling liquid pipeline, the first motor cooling structure and the second motor cooling structure are both connected with the gearbox cooling structure through cooling liquid pipelines, and the gearbox cooling structure is connected with the main radiator through a cooling liquid pipeline to form a cooling circulation pipeline; and a water pump is also connected in series on the cooling circulation pipeline.
Preferably, there are two water pumps, one of which is connected between the main radiator and the first motor controller cooling structure, and the other of which is connected between the main radiator and the second motor controller cooling structure.
Preferably, the first motor controller cooling structure is a cooling structure of the first motor controller, and the second motor controller cooling structure is a cooling structure of the second motor controller.
Preferably, the first motor cooling structure is a cooling structure of the first motor, and the second motor cooling structure is a cooling structure of the second motor.
Preferably, the gearbox cooling structure is an oil-water cooler, and the oil-water cooler is connected with an oil pan of the gearbox through an oil pipe for heat dissipation.
Preferably, the pipe diameter of the cooling liquid pipeline is 25-60 mm.
The utility model discloses at least, include following beneficial effect:
(1) the cooling system can simultaneously cool two large components of the motor and the gearbox;
(2) the system selects a radiator as follows: the heat dissipation area is increased, the heat dissipation efficiency is improved, and two sets of cooling systems are integrated into one set of cooling system;
(3) the system selects two paths to respectively radiate heat for the two sets of motor controllers and the motors, because the working temperature ranges of the two sets of motor controllers and the motors are the same, the two sets of motor controllers and the motors cannot be connected in series for radiating heat and can only be connected in parallel, so that the heat radiation of the two sets of motor controllers and the motors can be realized, and the heat radiation efficiency can be improved.
(4) The system can realize the heat dissipation of the gearbox at the same time, mainly because the working temperature range of a radiator of the gearbox is higher, the gearbox can be cooled by cooling liquid passing through a motor, and the efficiency of the whole heat dissipation system is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a novel dual-motor transmission cooling device according to one of the technical solutions of the present invention;
fig. 2 is a cooling flow schematic diagram of the novel dual-motor transmission cooling device according to one of the technical solutions of the present invention.
The label in fig. 1 is in particular a 1-expansion tank; 2-main radiator; 3-a water pump; 4-a motor controller; 5-novel double-motor gearbox; 6-oil water cooler.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The utility model aims at providing a novel double-motor gearbox cooling device for a rigid mining dump truck; when the vehicle runs, the parts such as the motor, the gearbox and the like can be ensured to run in the optimal temperature range, and the faults caused by overhigh working temperature are avoided.
Wherein, the motor controller 4 has two, control the first electrical machinery and second electrical machinery correspondingly separately; the two motor controllers 4 are respectively a first motor controller and a second motor controller, and the first motor controller and the second motor controller are respectively provided with corresponding cooling structures which are respectively a first motor controller cooling structure and a second motor controller cooling structure;
as shown in fig. 1-2, the utility model provides a novel bi-motor gearbox cooling device, include:
the cooling system comprises an expansion water tank 1, a main radiator 2 (namely an independent radiator of the whole vehicle) connected with the expansion water tank 1, a first motor controller cooling structure, a second motor controller cooling structure, a first motor cooling structure, a second motor cooling structure, an oil-water cooler 6 and a gearbox cooling structure;
the first motor controller cooling structure, the second motor controller cooling structure, the first motor cooling structure, the second motor cooling structure and the gearbox cooling structure can surround cooling pipelines arranged in corresponding structures, and can also be cooling structures carried by the corresponding structures, namely hollow cooling layers coated outside the working structures;
the main radiator 2 is respectively connected with a first motor controller cooling structure and a second motor controller cooling structure through cooling liquid connecting pipelines, the first motor controller cooling structure is connected with the first motor cooling structure through a cooling liquid pipeline, the second motor controller cooling structure is connected with the second motor cooling structure through a cooling liquid pipeline, the first motor cooling structure and the second motor cooling structure are both connected with the oil-water cooler 6 through cooling liquid pipelines, the oil-water cooler 6 is connected with the gearbox cooling structure through a gear oil pipeline, and the oil-water cooler is connected with the main radiator 2 through a cooling liquid pipeline to form a cooling circulation pipeline; a water pump 3 is also connected in series on the cooling circulation pipeline;
in the embodiment, the motor controller has the working temperature of 55 ℃, the motor has the working temperature of 60 ℃ and the gearbox 5 has the working temperature of 80 ℃, so the motor controller, the motor and the gearbox 5 can be cooled in series, but the two motor controllers and the two motors can only be cooled in parallel because of the same working temperature.
In the technical scheme, in the specific use process, the antifreeze solution from the water tank is divided into two paths by the water pump 3, then the two paths of antifreeze solution flow together to enter the oil-water cooler 6 and the gearbox 5 for cooling after passing through the two motor controllers and the two motors, and the coolant returns to the water tank through the oil-water cooler 6 to finish the cooling of the whole system;
the cooling principle of the cooling device is as follows: the anti-freezing fluid that has cooled in main radiator 2 divides two the tunnel through water pump 3 and flows to two machine controller's cooling structure respectively, and the anti-freezing fluid through machine controller cooling structure flows to two motors of ISG and TM respectively again (here is only the motor type in this embodiment, the utility model discloses the protection scope is not only limited to these two kinds of motors), accomplishes the cooling back of motor and machine controller part, and the anti-freezing fluid that flows out from two machine cooling structure merges oil water cooler 6, cools off 5 gear oil in the gearbox, and the anti-freezing fluid oil return (flow) is finally accomplished the system cooling to the radiator. That is, in the utility model, the cooling condition of the dual-motor transmission system is that the working temperatures of the multiple motor controllers, the motors and the transmission 5 are increased in a step manner within a normal range, and the dual-motor transmission system is not limited to a fixed temperature value; by adopting the technical scheme, a set of cooling system can realize the simultaneous cooling work of the two parts of the motor and the gearbox 5; the structure is effectively integrated under the premise of ensuring the heat dissipation mass; the stepped working temperature property of the dual-motor transmission system is utilized, the heat dissipation sequence is reasonably utilized, and the parallel heat dissipation of the two sets of motor controllers and the motors is realized; meanwhile, the flowing cooling liquid is converged and then radiates the gearbox 5, so that the efficiency of the whole radiating system is improved; because the operating temperature range of the gearbox 5 is relatively high, the gearbox 5 can be cooled with cooling liquid that passes through the motor.
In another kind of technical scheme, water pump 3 has two, one is connected main radiator 2 with between the first motor controller cooling structure, another is connected main radiator 2 with between the second motor controller cooling structure, adopt this technical scheme, can make the velocity of flow phase-match of coolant liquid in the coolant liquid pipeline of connecting between two motor controller cooling structures, reduce single water pump 3's work burden simultaneously, improve water pump 3's life for coolant liquid in the coolant liquid pipeline can be steady carries out the heat exchange, also can adjust the velocity of flow of coolant liquid according to actual conditions simultaneously, adjust cooling rate.
In another technical scheme, the first motor controller cooling structure is a cooling structure of the first motor controller, and the second motor controller cooling structure is a cooling structure of the second motor controller.
In another kind of technical scheme, first motor cooling structure is first motor cooling structure from taking, second motor cooling structure is second motor cooling structure from taking, adopts this technical scheme, and this structure generally is the heat transfer layer of the corresponding motor of cladding, and wherein the coolant liquid flows through the heat transfer layer, compares in the coil pipe cooling structure around the motor, and heat exchange efficiency is high, and the structure is simpler, compares in the body and is difficult to take place to block up, and later maintenance is more convenient.
In another kind of technical scheme, gearbox cooling structure does gearbox cooling structure is oil water cooler, oil water cooler passes through oil pipe line connection the oil pan of gearbox is its heat dissipation, adopts this technical scheme, compares in the coil pipe cooling structure around gearbox 5, and heat exchange degree is bigger, and heat exchange area of contact is big, realizes quick cooling.
In another technical scheme, the pipe diameter of the cooling liquid pipeline is 25-60mm, and by adopting the technical scheme, the cooling liquid in the pipeline can efficiently exchange heat with a structure to be cooled.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the cooling device for a dual motor transmission of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (6)
1. Novel bi-motor gearbox cooling device, its characterized in that includes: the cooling system comprises an expansion water tank, a main radiator connected with the expansion water tank, a first motor controller cooling structure, a second motor controller cooling structure, a first motor cooling structure, a second motor cooling structure and a gearbox cooling structure;
the main radiator is respectively connected with a first motor controller cooling structure and a second motor controller cooling structure through cooling liquid connecting pipelines, the first motor controller cooling structure is connected with the first motor cooling structure through a cooling liquid pipeline, the second motor controller cooling structure is connected with the second motor cooling structure through a cooling liquid pipeline, the first motor cooling structure and the second motor cooling structure are both connected with the gearbox cooling structure through cooling liquid pipelines, and the gearbox cooling structure is connected with the main radiator through a cooling liquid pipeline to form a cooling circulation pipeline; and a water pump is also connected in series on the cooling circulation pipeline.
2. A novel dual motor transmission cooling arrangement as defined in claim 1 wherein said water pump has two, one connected between said primary radiator and said first motor controller cooling structure and the other connected between said primary radiator and said second motor controller cooling structure.
3. The novel dual motor transmission cooling arrangement of claim 1, wherein the first motor controller cooling structure is a first motor controller self-contained cooling structure and the second motor controller cooling structure is a second motor controller self-contained cooling structure.
4. The novel dual-motor gearbox cooling device as recited in claim 1, wherein said first motor cooling structure is a first motor self-contained cooling structure and said second motor cooling structure is a second motor self-contained cooling structure.
5. The novel dual-motor gearbox cooling device as recited in claim 1, wherein said gearbox cooling structure is an oil-water cooler, said oil-water cooler being connected to an oil pan of said gearbox through an oil pipe for dissipating heat therefrom.
6. A novel dual motor gearbox cooling device as defined in claim 1, wherein said coolant line has a pipe diameter of 25-60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120128058.XU CN214125080U (en) | 2021-01-18 | 2021-01-18 | Novel cooling device for double-motor gearbox |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120128058.XU CN214125080U (en) | 2021-01-18 | 2021-01-18 | Novel cooling device for double-motor gearbox |
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| CN214125080U true CN214125080U (en) | 2021-09-03 |
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| CN202120128058.XU Active CN214125080U (en) | 2021-01-18 | 2021-01-18 | Novel cooling device for double-motor gearbox |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111042A (en) * | 2022-01-12 | 2022-09-27 | 长城汽车股份有限公司 | Cooling system of vehicle, control method of cooling system of vehicle, and vehicle |
| CN115596831A (en) * | 2022-11-30 | 2023-01-13 | 中国重汽集团济南动力有限公司（Cn） | Electric drive gearbox heat management system and method |
-
2021
- 2021-01-18 CN CN202120128058.XU patent/CN214125080U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111042A (en) * | 2022-01-12 | 2022-09-27 | 长城汽车股份有限公司 | Cooling system of vehicle, control method of cooling system of vehicle, and vehicle |
| CN115111042B (en) * | 2022-01-12 | 2024-05-28 | 长城汽车股份有限公司 | Cooling system for vehicle, control method for cooling system for vehicle, and vehicle |
| CN115596831A (en) * | 2022-11-30 | 2023-01-13 | 中国重汽集团济南动力有限公司（Cn） | Electric drive gearbox heat management system and method |
| CN115596831B (en) * | 2022-11-30 | 2023-03-14 | 中国重汽集团济南动力有限公司 | Electric drive gearbox heat management system and method |
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