Heat dissipation system special for hybrid electric vehicle
By arranging the engine radiator, engine intercooler, and electric motor radiator in parallel and combining them with precise control of the electric fan, the problems of large space occupation and high cost of hybrid vehicle cooling systems are solved, achieving the effects of space saving, cost reduction, and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI KAMA BONLUCK BUSINESS BUS
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-17
AI Technical Summary
The cooling systems of existing hybrid vehicles occupy a lot of engine compartment space due to the two independent or series-arranged radiators, which are complex to arrange and costly.
The system employs a three-parallel arrangement of engine radiator, engine intercooler, and motor-controlled radiator, which are fixed by a metal frame. Combined with independent or vehicle-wide control of the electric fan, multiple temperature sensors are used to precisely control the fan speed to reduce energy consumption.
It saves cabin space, reduces costs, simplifies piping layout, facilitates maintenance, and achieves precise heat dissipation control and energy reduction.
Smart Images

Figure CN224130878U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive cooling technology, specifically a heat dissipation system for hybrid vehicles. Background Technology
[0002] The automotive radiator is a crucial component of the vehicle's cooling system. Working in conjunction with accessories such as fans and water pumps, it dissipates heat generated by the engine, motor, and electronic control system, ensuring they operate within their normal temperature range. Currently, hybrid vehicle radiators typically have the engine radiator, intercooler, and motor radiator arranged separately or in series. This results in the two radiator systems occupying significant engine compartment space, leading to complex layouts and high costs. Utility Model Content
[0003] The purpose of this invention is to solve the problems of existing hybrid vehicles using two independent cooling systems and series cooling systems, which occupy a lot of engine compartment space, have a complex layout, and are costly. This invention provides a dedicated cooling system for hybrid vehicles, which saves space and reduces costs by arranging three radiators in parallel, making the piping layout simpler and easier to maintain.
[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution.
[0005] A dedicated cooling system for hybrid electric vehicles includes a motor control radiator, an engine radiator, and an engine intercooler arranged side-by-side from left to right. The motor control radiator, engine radiator, and engine intercooler are assembled to form a three-parallel radiator, with their four edges secured by a metal frame. Multiple radiator end brackets are fixed to the outer surface of the metal frame, and these brackets are connected to the vehicle frame end brackets via vibration-damping pads and self-locking bolts. A wind deflector is installed above the motor control radiator, engine radiator, and engine intercooler. The wind deflector is fixed to the metal frame in four directions by wind deflector mounting bolts. Multiple mounting holes are provided on the top surface of the wind deflector, and an electric fan is fixedly installed within each hole.
[0006] The electronic fan can be controlled by an independent controller or by the vehicle controller. By reading the signals from various temperature sensors, precise heat dissipation control can be achieved: In pure electric mode, only the motor-controlled radiator can be turned on, and the fan speed or one or two fans can be adjusted according to the temperature sensor signals to reduce energy consumption; in engine direct drive mode, only the intercooler radiator and engine radiator fans can be turned on, and the fan speed or several fans can be adjusted according to the temperature sensor signals to reduce energy consumption; in engine hybrid mode, all fans can be turned on, and the fan speed or several fans can be adjusted according to the temperature sensor signals to reduce energy consumption.
[0007] Specifically, a first temperature sensor and a second temperature sensor are fixedly installed at the first water inlet and the first water outlet of the engine radiator, respectively.
[0008] Specifically, a third temperature sensor and a fourth temperature sensor are fixedly installed at the first air inlet and the first air outlet of the engine intercooler, respectively.
[0009] Specifically, a fifth temperature sensor and a sixth temperature sensor are fixedly installed at the second inlet and the second outlet of the motor control radiator, respectively.
[0010] Specifically, the engine radiator and the motor control radiator are respectively provided with a first degassing port and a second degassing port on their tops.
[0011] Specifically, the windproof cover is provided with multiple wire harness fixing clips, and an electronic fan drive wire harness passes through the wire harness fixing clips.
[0012] Specifically, the radiator end bracket and the frame end bracket are L-shaped bent parts, and the inner side of the L-shaped bent parts is fixedly provided with reinforcing ribs.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The engine radiator, engine intercooler, and motor control radiator of this utility model are arranged in parallel, which saves valuable layout space and reduces the overall cost of the cooling system.
[0015] The engine radiator, engine intercooler, and motor control radiator of this utility model are arranged in parallel, and the order of the three can be adjusted as needed. The main pipelines, electric water pump, radiator and other components can be arranged in one compartment, making the pipeline more compact, simple, beautiful and easy to maintain.
[0016] This invention allows for independent control of multiple electronic fans, enabling precise control as needed, reducing energy consumption and noise. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a special cooling system for hybrid electric vehicles according to this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model after the windproof cover is installed;
[0019] Figure 3 This is a schematic diagram illustrating the working principle of a dedicated cooling system for hybrid electric vehicles according to this utility model.
[0020] In the diagram: 1. First degassing port; 2. Second water inlet; 3. Fifth temperature sensor; 4. First water inlet; 5. First temperature sensor; 6. Second degassing port; 7. Third temperature sensor; 8. First air inlet; 9. Engine radiator; 10. Engine intercooler; 11. Radiator end bracket; 12. Self-locking bolt; 13. Vibration damping pad; 14. Frame end bracket; 15. First air outlet; 16. Fourth temperature sensor; 17. First water outlet; 18. Second temperature sensor; 19. Sixth temperature sensor; 20. Second water outlet; 21. Motor and electronic control radiator; 22. Electric fan; 23. Windshield mounting bolt; 24. Windshield; 25. Wiring harness fixing clip. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0022] like Figure 1 As shown, this utility model discloses a special heat dissipation system for hybrid vehicles, including a motor control radiator 21, an engine radiator 9, and an engine intercooler 10 arranged side by side from left to right. The motor control radiator 21, the engine radiator 9, and the engine intercooler 10 are assembled to form a three-parallel radiator, and their four edges are fixed by a metal frame. Multiple radiator end brackets 11 are fixed on the outer surface of the metal frame. The radiator end brackets 11 are fixedly connected to the vehicle frame end brackets 14 by self-locking bolts 12 via vibration damping pads 13.
[0023] like Figure 2 As shown, a wind shield 24 is installed above the motor control radiator 21, the engine radiator 9 and the engine intercooler 10. The wind shield 24 is fixedly connected to the metal frame in four directions by wind shield mounting bolts 23. The top surface of the wind shield 24 has multiple mounting holes, and an electronic fan 22 is fixedly installed in the mounting holes.
[0024] Specifically, a first temperature sensor 5 and a second temperature sensor 18 are fixedly installed at the first water inlet 4 and the first water outlet 17 of the engine radiator 9, respectively.
[0025] Specifically, a third temperature sensor 7 and a fourth temperature sensor 16 are fixedly installed at the first air inlet 8 and the first air outlet 15 of the engine intercooler 10, respectively.
[0026] Specifically, a fifth temperature sensor 3 and a sixth temperature sensor 19 are fixedly installed at the second water inlet 2 and the second water outlet 20 of the motor control radiator 21, respectively.
[0027] Specifically, the top of the engine radiator 9 and the motor control radiator 21 are respectively provided with a first degassing port 1 and a second degassing port 6.
[0028] Specifically, the windproof cover 24 is provided with a plurality of wire harness fixing clips 25, and an electronic fan drive wire harness passes through the wire harness fixing clips 25.
[0029] Specifically, the radiator end bracket 11 and the frame end bracket 14 are L-shaped bent parts, and the inner side of the L-shaped bent parts is fixedly provided with reinforcing ribs.
[0030] Working principle:
[0031] like Figure 3 As shown, after the hybrid vehicle-specific cooling system of this utility model is installed in the hybrid vehicle, the three parallel radiators are arranged on one side of the engine and hybrid box, and connected by the radiator end bracket 11 and the frame end bracket 14. The electric water pump and electric fan 22 of the hybrid vehicle are controlled independently or by the vehicle controller; the whole system can be divided into three small cooling systems to achieve effective heat dissipation of the vehicle.
[0032] ① Motor and electronic control - Hybrid box - Electric water pump - Motor and electronic control radiator (water filters and other components can be added to the water circuit as needed);
[0033] ② Engine cooling water circuit - engine radiator (water filters and other components can be added to the water circuit as needed);
[0034] ③ Engine intake system - engine intercooler.
[0035] This invention solves the problems of existing hybrid vehicles using two independent cooling systems and series cooling systems, which occupy a lot of engine compartment space, have a complex layout, and are costly, by designing a three-parallel radiator. It makes the pipeline layout of the hybrid vehicle's cooling system simpler and easier to maintain.
[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A cooling system specifically designed for hybrid electric vehicles, characterized in that, The system includes a motor control radiator (21), an engine radiator (9), and an engine intercooler (10) arranged side by side from left to right. The motor control radiator (21), engine radiator (9), and engine intercooler (10) are assembled to form a three-parallel radiator. The four edges are fixed by a metal frame. Multiple radiator end brackets (11) are fixed on the outer surface of the metal frame. The radiator end brackets (11) are fixed to the frame end brackets (14) by self-locking bolts (12) via vibration damping pads (13). A wind shield (24) is installed above the motor control radiator (21), engine radiator (9), and engine intercooler (10). The wind shield (24) is fixed to the metal frame in four directions by wind shield mounting bolts (23). Multiple mounting holes are opened on the top surface of the wind shield (24). An electronic fan (22) is fixedly installed in the mounting holes.
2. The hybrid vehicle dedicated heat dissipation system according to claim 1, wherein A first temperature sensor (5) and a second temperature sensor (18) are fixedly installed at the first inlet (4) and the first outlet (17) of the engine radiator (9), respectively.
3. The hybrid vehicle-specific heat dissipation system of claim 1, wherein, A third temperature sensor (7) and a fourth temperature sensor (16) are fixedly installed at the first air inlet (8) and the first air outlet (15) of the engine intercooler (10), respectively.
4. The hybrid vehicle-specific heat dissipation system of claim 1, wherein, The fifth temperature sensor (3) and the sixth temperature sensor (19) are fixedly installed at the second inlet (2) and the second outlet (20) of the motor control radiator (21), respectively.
5. The hybrid vehicle-specific heat dissipation system of claim 1, wherein, The engine radiator (9) and the motor control radiator (21) are respectively provided with a first degassing port (1) and a second degassing port (6) on the top.
6. The hybrid vehicle-specific heat dissipation system of claim 1, wherein, The windproof cover (24) is provided with multiple wire harness fixing clips (25), and an electronic fan drive wire harness passes through the wire harness fixing clips (25).
7. The hybrid vehicle-specific heat dissipation system of claim 1, wherein, The radiator end bracket (11) and the frame end bracket (14) are L-shaped bent parts, and the inner side of the L-shaped bent parts is fixedly provided with reinforcing ribs.