A dual-fan assembly for a radiator of a range-extended vehicle

Abstract

The utility model discloses a radiator double fan assembly for range extending vehicle, two connector structures design are added in the wind ring of the wind cover, reduce the space of connector in the front cabin, and 2 fixed nuts of water pump are added on the wind cover. The design can effectively solve the arrangement problem of the whole vehicle front cabin pipeline parts under the premise of not influencing the fan performance. At the same time, through the heat insulation effect of the heat shield, the gap between the motor and the range extender can be reduced, so that the fan can be smoothly arranged into the front cabin. The structure realizes the synchronous consideration of the influence on the performance.

Description

Technical Field

[0001] This utility model relates to parts for new energy range-extended vehicles, specifically to a dual-fan radiator assembly for range-extended vehicles. Background Technology

[0002] With the development of new energy vehicles, vehicles have shifted from being driven by internal combustion engines to being driven by electric motors. However, due to battery range issues, consumers still have concerns about choosing new energy vehicles. To address this problem, a completely new drive structure has emerged: range-extended electric vehicles (REEVs). Their working principle involves the engine generating electricity, which is then used to drive the electric motor. Because the front compartment houses the engine, range extender, and other components, the space available for the cooling module is significantly reduced. Furthermore, the cooling fans must dissipate heat from both the engine and the battery, resulting in high cooling demands. In addition, the engine compartment itself also has relatively high temperatures, making conventional fans insufficient. Therefore, a dual-fan cooling system is employed. Utility Model Content

[0003] The purpose of this invention is to provide a dual-fan radiator assembly for range-extended vehicles. It incorporates two connector structures within the air shroud's air ring, reducing the space occupied by these connectors in the front compartment. Additionally, two water pump fixing nuts are added to the air shroud. This design has been verified to effectively solve the layout problem of piping and other components in the vehicle's front compartment without affecting fan performance. Furthermore, the heat insulation effect of the heat shield reduces the gap between the motor and the range extender, allowing the fans to be easily installed in the front compartment. All these structural implementations have been designed with performance considerations in mind.

[0004] The technical solution of this utility model is: a dual-fan radiator assembly for range-extended vehicles, including a wind shield, which can be installed on the cooling module;

[0005] The wind shield is provided with two wind rings, left and right. Each wind ring is fixedly connected to a motor ring by multiple motor connecting reinforcing ribs. Each of the two motor rings is fixedly connected to a brushless motor. The front side of the brushless motor is fixedly connected to a fan blade.

[0006] A heat insulation cover is fixedly connected to the rear side of the brushless motor. The heat insulation cover consists of two layers of aluminum plates that are stamped and extruded together, with heat insulation cotton sandwiched between the two layers. This design isolates heat while allowing for rapid heat dissipation.

[0007] Furthermore, among the multiple motor connection reinforcing ribs, one motor connection reinforcing rib has a connector fixing structure near the end of the air ring, and another motor connection reinforcing rib also has a connector fixing structure in the middle.

[0008] Furthermore, the connector fixing structure has two connector connection holes, and the corners of the connector fixing structure adopt an arc-shaped transition structure. This reduces interference with airflow and avoids noise problems.

[0009] Furthermore, two water pump mounting structures are provided below the left side air ring of the wind shield. These are positioned near the mounting angle of the wind shield to reduce the impact of water pump vibration on the fan during operation.

[0010] Furthermore, one layer of the double-layer aluminum plate is made of 1060-H state aluminum, and the other layer is made of 1060-O state aluminum. The 1060-H state aluminum layer increases hardness and prevents damage during transportation, while the 1060-O state aluminum layer, with relatively lower hardness, allows the two heat insulation covers to be pressed together, with insulation cotton sandwiched in between. This solves the processing and transportation problems of the heat insulation cover without affecting its performance.

[0011] Furthermore, the surface of the double-layer aluminum plate is processed with multiple aluminum plate reinforcing ribs.

[0012] Furthermore, the wall thickness of the heat insulation cover is 0.6±0.02mm.

[0013] Furthermore, the water pump fixing structure has an embedded nut that is parallel to the ground.

[0014] The beneficial effects of this utility model are as follows: It provides a dual-fan radiator assembly for range-extended vehicles. Two connector mounting holes are added inside the air ring of the shroud, allowing the connectors to be fixed inside the left air ring, thus reducing the space occupied by the radiator fan assembly. Simultaneously, two water pump mounting holes are added to the shroud, eliminating the need to fix the water pump to the vehicle, facilitating component integration. A unique heat shield design is added behind the motor, with a wall thickness of 0.6mm. Therefore, despite an increase in overall height of only 0.6mm, the gap between the fan and the range extender can be effectively reduced. This design has been verified to effectively solve the problem of compact layout in the front compartment of the vehicle without affecting fan performance. Attached Figure Description

[0015] Figure 1 This is an exploded view of the radiator fan assembly;

[0016] Figure 2 This is a schematic diagram of the wind shield structure;

[0017] Figure 3 This is an exploded view of the heat shield;

[0018] Figure 4 This is a schematic diagram of the heat insulation cover structure.

[0019] In the diagram: 1 is a screw; 2 is a heat insulation cover; 3 is a wind shield; 4 is a shock-absorbing pad; 5 is a brushless motor; 6 is a fan blade; 7 is a fastener; 8 is a double-layer aluminum plate; 9 is a connector fixing structure; 10 is a water pump fixing structure; 11 is heat insulation cotton. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, the dual-fan radiator assembly for range-extended vehicles includes six screws 1, two heat shields 2, one air shield 3, two shock-absorbing pads 4, two brushless motors 5, two fan blades 6, and six fasteners 7. The air shield 3 is mounted on the cooling module, and the brushless motors 2 are fixed to the recessed surface of the air shield 3 by screws 1. The fan blades 6 are fixed to the brushless motors 2. This design adopts a dual-fan structure, fixing the brushless motors and fan blades to the air shield by screws. The fan assembly is assembled on the cooling module and then on the vehicle. To achieve placement in the high-temperature and compact front compartment, two connector fixing structures 9 are designed on the left side air ring of the air shield to fix the connectors. At the same time, to shorten the overall vehicle piping length, two water pump fixing structures 10 are set below the left side air ring of the air shield to fix the water pump, so that the water pump does not need to be fixed to the vehicle body. Adding a heat shield 2 behind the motor effectively reduces the heat radiated from the range extender onto the motor PCBA, allowing the motor to operate normally even at the high temperatures of the range extender. This design has been verified to effectively solve the problem of motor malfunction due to the compact space in the front compartment of range-extended vehicles and high ambient temperatures, without affecting fan performance.

[0022] like Figure 2 As shown, two water pump mounting structures 10 are designed on the lower left side of the wind shield 3. The water pump mounting structure 10 adopts structural strength optimization and has embedded nuts. This structure is parallel to the ground, which can facilitate the assembly of the vehicle water pump onto the radiator fan assembly.

[0023] like Figure 3 , 4As shown, the heat insulation cover 2 uses double-layer 1060 aluminum with heat insulation cotton 11 sandwiched in between, achieving effective heat insulation and heat dissipation. One layer is 1060-H state aluminum, which increases hardness and will not be damaged during transportation. The other layer is 1060-O state aluminum, which has relatively low hardness. The two heat insulation covers can be squeezed together by compression, with heat insulation cotton sandwiched in between. This solves the processing and transportation problems of the heat insulation cover without affecting its performance. 1060 aluminum has good thermal conductivity, so it can quickly cool the heat radiated by the range extender in the air. At the same time, the heat insulation cotton in the middle can effectively prevent the radiated heat from being further transferred to the motor PCBA area. Through testing, the temperature can be reduced by about 10 degrees Celsius, allowing the motor to operate normally under harsh high-temperature conditions.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dual-fan radiator assembly for range-extended vehicles, characterized in that: Includes a wind shield (3), which can be installed on the cooling module; The wind shield (3) is provided with two wind rings, left and right. Each wind ring is fixedly connected to a motor ring by multiple motor connecting reinforcing ribs. A brushless motor (5) is fixedly connected to each of the two motor rings. The front side of the brushless motor (5) is fixedly connected to a fan blade (6). The brushless motor (5) is fixedly connected to a heat insulation cover (2) on its rear side. The heat insulation cover (2) includes a double-layer aluminum plate (8) that is stamped and extruded together, with heat insulation cotton (11) sandwiched in the middle of the double-layer aluminum plate (8).

2. The dual-fan radiator assembly for range-extended vehicles according to claim 1, characterized in that: Among the multiple motor connection reinforcing ribs, one motor connection reinforcing rib has a connector fixing structure (9) near the end of the air ring, and another motor connection reinforcing rib also has a connector fixing structure (9) in the middle.

3. The dual-fan radiator assembly for range-extended vehicles according to claim 2, characterized in that: The connector fixing structure (9) has two connector connection holes, and the corner of the connector fixing structure (9) adopts an arc transition structure.

4. The dual-fan radiator assembly for range-extended vehicles according to claim 1, characterized in that: Two water pump fixing structures (10) are provided below the left side air ring of the wind shield (3).

5. A dual-fan radiator assembly for a range-extended vehicle according to claim 1, characterized in that: One layer of the double-layer aluminum plate (8) is 1060-H state aluminum, and the other layer is 1060-O state aluminum.

6. A dual-fan radiator assembly for a range-extended vehicle according to claim 1, characterized in that: The surface of the double-layer aluminum plate (8) is processed with multiple aluminum plate reinforcing ribs.

7. A dual-fan radiator assembly for a range-extended vehicle according to claim 1, characterized in that: The wall thickness of the heat insulation cover (2) is 0.6±0.02mm.

8. A dual-fan radiator assembly for a range-extended vehicle according to claim 4, characterized in that: The pump fixing structure (10) has an embedded nut and is parallel to the ground.

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