CN214295556U

CN214295556U - Hybrid cooling system

Info

Publication number: CN214295556U
Application number: CN202022368560.6U
Authority: CN
Inventors: 雍安姣; 魏启武; 杨成; 周玮玮; 付永宏
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-09-28
Anticipated expiration: 2030-10-22

Abstract

The utility model provides a hybrid cooling system, include the fan that is located the rear side along the car length direction, the front end of fan has arranged the apposition and is LTR low temperature radiator, the cold radiator of oil that upper and lower position was arranged. Among the above-mentioned technical scheme, arrange LTR low temperature radiator, oil-cooled radiator in the apposition position department of car length direction, just so saved the space that the car length direction of heat dissipation device occupied, need not to improve under the condition of fan power, still can provide sufficient wind-force, make devices such as condensers obtain reliable cold wind, satisfied the heat dissipation demand of heat dissipation device.

Description

Hybrid cooling system

Technical Field

The utility model belongs to the automobile field, concretely relates to plug-in hybrid electric vehicle's cooling system.

Background

The plug-in hybrid technology can realize long-distance driving like a traditional vehicle, and meanwhile, energy is saved in a hybrid mode, and emission is reduced. The system can realize short-distance zero-emission driving in a pure electric mode, the gasoline engine stops working at the moment, clean and environment-friendly effects are completely realized, and meanwhile, under the whole operation working condition, the system can intelligently switch between two power sources according to the requirements of a driver, the SOC state of a battery, the load of an engine, environmental factors and the like, and the energy recovery is realized to the maximum extent. In this kind of motorcycle type, in order to satisfy longer pure electric mileage, need dispose large capacity power battery, because hybrid multimode's needs generally need one to 2 or 3 high-power motors simultaneously to and corresponding control system etc. put in order to put in order the car weight and increase by a wide margin. Further, with the improvement of the performance requirement of the vehicle, the supercharged engine is already the current vehicle standard, and the front end also needs an air intercooler, namely a general supercharged engine traditional vehicle, and the front end of the supercharged engine traditional vehicle is generally provided with an intercooler, a condenser, a main radiator and at least 3 radiators. After the hybrid vehicle is converted into a hybrid vehicle, a low-temperature radiator of a motor control system (a circuit generally comprises a charger, an inverter, a DCDC and the like) and a transmission oil-temperature radiator (a motor is generally integrated therein) are required to be additionally arranged, and even a low-temperature radiator of a battery cooling system may be arranged. A total of at least 4-6 heat sinks.

In general, in order to use a front-end large fan, it is necessary to arrange the plurality of radiators simultaneously at the front end of the vehicle. And because the development is based on basic fuel oil vehicles, the front end generally has an intercooler, a condenser and a radiator from front to back. In order to reduce the cost, the conventional method is to directly arrange the newly added radiator in front of the original front-end module. Because the quantity of radiators is increased, the air quantity at the front end is reduced, and in order to ensure the air inlet quantity, the opening area of an air inlet grille needs to be increased. However, in any case, the arrangement of other radiators at the front end of the condenser can increase the air inlet temperature of the condenser, thereby affecting the air conditioning performance of the whole vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hybrid cooling system arranges scheme, through the heat dissipation demand of rational arrangement in order to satisfy each relevant heat dissipation device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hybrid cooling system comprises a fan located on the rear side along the vehicle length direction, and an LTR low-temperature radiator and an oil-cooled radiator which are arranged in the same position and in the upper position and the lower position are arranged at the front end of the fan.

Among the above-mentioned technical scheme, arrange LTR low temperature radiator, oil-cooled radiator in the apposition position department of car length direction, just so saved the space that the car length direction of heat dissipation device occupied, need not to improve under the condition of fan power, still can provide sufficient wind-force, make devices such as condensers obtain reliable cold wind, satisfied the heat dissipation demand of heat dissipation device.

Drawings

Fig. 1 and 2 are schematic structural diagrams of the present invention;

fig. 3 is a schematic diagram of the connection of the LTR low temperature heat sink and the related devices.

Detailed Description

As shown in fig. 1 and 2, a hybrid cooling system includes a fan 10 located at the rear side in the vehicle length direction, and a LTR low-temperature radiator 20 and an oil-cooled radiator 30 which are located at the same position and are arranged in the upper and lower positions are arranged at the front end of the fan 10.

Above-mentioned scheme, exactly carry out the suitability design with LTR low temperature radiator 20, oil-cooled radiator 30's peripheral profile and thickness promptly the size of long car direction, make the thickness of both coincide basically and be and arrange the situation from top to bottom, just so make LTR low temperature radiator 20, oil-cooled radiator 30 only occupy a cloth position on the long direction of car, saved cabin space, reduced the cold wind flow resistance, ensured the basic heat dissipation demand of each radiator.

Preferably, a main radiator 40 is disposed between the LTR low-temperature radiator 20, the oil-cooled radiator 30 and the fan 10.

The arrangement positions of the LTR low-temperature radiator 20 and the oil-cooled radiator 30 are selected from two positions, one is that the LTR low-temperature radiator 20 and the oil-cooled radiator 30 are arranged at the forefront of the vehicle head, and the condenser 50 is arranged between the LTR low-temperature radiator 20, the oil-cooled radiator 30 and the main radiator 40.

Secondly, the condenser 50 is arranged at the foremost end of the locomotive, the LTR low-temperature radiator 20, the oil-cooled radiator 30 and the main radiator 40 are sequentially arranged backwards, and the fan 10 is arranged at the rearmost side.

According to the scheme, five devices are mounted at four mounting positions, wherein the four mounting positions comprise four radiators and one fan. In the second scheme, the newly added radiator is arranged behind the condenser just considering that the air conditioning system is greatly influenced by the front-end air temperature and the air volume.

The middle cooling heat load 21, the battery system heat load 22 and the electric control system heat load 23 are connected to the LTR low-temperature radiator 20 in parallel.

Considering the characteristics of the LTR low-temperature radiator 20 and the oil-cooled radiator 30, the thickness of the oil-cooled radiator 30 is selected to be slightly larger than that of the LTR low-temperature radiator 20, and the area of the oil-cooled radiator 30 is smaller than that of the LTR low-temperature radiator 20, so that the LTR low-temperature radiator 20 and the oil-cooled radiator 30 are arranged in the upper and lower positions.

In order to fully exert the performance of the LTR low-temperature radiator 20, the inter-cooling heat load 21, the battery system heat load 22, and the electric control system heat load 23 are coupled to the LTR low-temperature radiator 20 in parallel. That is, the medium cooling heat load 21, the battery system heat load 22, and the electronic control system heat load 23 can all realize heat dissipation by the LTR low-temperature heat sink 20.

The consideration of the scheme is that for a basic fuel oil vehicle type carrying a turbo-charged engine, an intercooling radiator, a condenser and a main radiator are arranged at the front end. When the vehicle type is used for developing PHEV vehicle types, a radiator needs to be added for a battery, a radiator needs to be added for an electric control system, and two driving motors need to be integrated for a hybrid special gearbox for radiating heat. The battery system and the electric control system are both water-cooled, and the water temperature range is lower than 60 ℃, in order to save space and cost, the battery system and the electric control system are combined with an intercooling radiator, namely the same radiator, namely the LTR low-temperature radiator 20, is used for radiating heat for three systems.

Because the hybrid special gearbox adopts oil cooling and has higher temperature, one radiator, namely the oil cooling radiator 30, must be used independently, has larger heat load, and is arranged at the front end of the condenser 50, the inlet air temperature of the condenser can be increased by more than 10 ℃, and the air conditioning performance is greatly reduced. Therefore, the new oil-cooled radiator 30 and LTR low-temperature radiator 20 need to be arranged behind the condenser 50, and meanwhile, in order to reduce the overall thickness in the X direction, the original low-temperature radiator is generally thicker, and needs to be thinner and taller. Meanwhile, the temperature of the radiator can also rise to a certain extent due to new heat increasing load and air quantity factors. Therefore, the front end opening still needs to be enlarged, and the front end module is sealed to increase the air volume. If necessary, measures for improving the performance of the main radiator 40 and increasing the air volume of the fan are also needed.

Because the multi-position heat dissipation devices are arranged, the areas among the heat dissipation devices also form a passage for dissipating cold air, and in order to improve the utilization rate of the cold air, the upper side, the left side and the right side of the cooling system are additionally provided with air flow guide plates which guide air flow to the position of the heat dissipation device at the forefront end, and the rear end of each air flow guide plate is enclosed to the front side surface of the main heat dissipation device 40. The air flow guide plate can be an independent component or can be formed by utilizing the surrounding of local parts of the radiator support.

It should be noted that, above and omitted relevant pump class part and relevant valve class part in the drawing, because, the utility model discloses a main point lies in the arrangement of radiator, and the flow direction of the connection and the refrigerant of solid to pump, valve class part is no longer repeated.

The utility model also has the following advantages that the original cooling system components can be used to the maximum extent; and secondly, the operation is convenient, new adverse factors cannot be caused, or the adverse factors are controllable within an identifiable range.

Claims

1. A hybrid cooling system including a fan (10) located on a rear side in a vehicle length direction, characterized in that: the front end of the fan (10) is provided with an LTR low-temperature radiator (20) and an oil-cooled radiator (30) which are arranged in the same position and in the upper and lower positions.

2. The hybrid cooling system according to claim 1, characterized in that: a main radiator (40) is arranged among the LTR low-temperature radiator (20), the oil-cooled radiator (30) and the fan (10).

3. The hybrid cooling system according to claim 1 or 2, characterized in that: the head of the vehicle is provided with an LTR low-temperature radiator (20) and an oil-cooled radiator (30) at the most front end, and a condenser (50) is arranged between the LTR low-temperature radiator (20), the oil-cooled radiator (30) and the main radiator (40).

4. The hybrid cooling system according to claim 1 or 2, characterized in that: the head of the vehicle is provided with a condenser (50) at the foremost end, an LTR low-temperature radiator (20), an oil-cooled radiator (30) and a main radiator (40) are arranged backwards in sequence, and the fan (10) is arranged at the rearmost side.

5. The hybrid cooling system according to claim 3, characterized in that: and the medium cooling heat load (21), the battery system heat load (22) and the electric control system heat load (23) are connected to the LTR low-temperature radiator (20) in parallel.

6. The hybrid cooling system according to claim 4, characterized in that: and the middle cooling heat load (21), the battery system heat load (22) and the electric control system heat load (23) are connected with the LTR low-temperature radiator (20) in parallel.

7. The hybrid cooling system according to claim 1 or 2, characterized in that: the upper, left and right edges of the cooling system are provided with airflow guide plates, the airflow guide plates guide airflow to the position of the heat dissipation device at the forefront end, and the rear ends of the airflow guide plates are enclosed on the front side surface of the main heat dissipater (40).