A vehicle front compartment cooling device

Abstract

This utility model discloses a vehicle front compartment heat dissipation device, belonging to the technical field of vehicle cooling systems. It mainly includes a subframe and a front water channel, with an air intake grille between the subframe and the front water channel. Fixing seats are fixed on both sides of the subframe, and a radiator assembly is mounted on each seat, tilted away from the air intake grille. Two spaced-apart fixing posts, one and two, are fixed to the upper part of the radiator assembly, both connected to the front water channel via fixing brackets. The lower end of the radiator assembly is fixed to the fixing seats. The radiator assembly of this utility model is fixed between the subframe and the front water channel, corresponding to the air intake grille. It adapts to the front compartment space while extending the airflow residence time on the radiator core surface, enhancing heat exchange. It also features a suction-type cooling fan to solve the problem of insufficient natural airflow at low speeds or idling, achieving stable heat dissipation under both high and low speed conditions. This utility model is mainly used in fuel-powered three-wheeled motorcycles.

Description

Technical Field

[0001] This utility model belongs to the technical field of three-wheeled vehicle cooling systems, and more specifically, it relates to a vehicle front compartment heat dissipation device. Background Technology

[0002] The vehicle's cooling system is crucial for ensuring stable engine operation. If the cooling system overheats, the coolant cannot effectively dissipate the large amount of heat generated by the engine to the outside, causing the engine temperature to rise abnormally. Sustained high temperatures accelerate the wear and tear on engine components, reducing their performance and, in severe cases, even causing permanent engine damage.

[0003] Patent CN118560258A discloses a front radiator mounting structure. The upper mounting point of the radiator body is fixed to the rear mounting crossbeam, and the lower mounting point is fixed to the front bumper beam. The rear mounting crossbeam and the front bumper beam overlap with the left and right longitudinal beams of the vehicle body, respectively, forming a robust front radiator mounting structure. If the radiator position or mounting angle changes, the relative positions of the rear mounting crossbeam and the front bumper beam can be adjusted to achieve both fixed mounting and modular design, ensuring versatility.

[0004] However, the above structure still has the following shortcomings: 1. Although the radiator is installed in the front compartment, it is fixed to the front bumper beam. Drilling holes in the corresponding structure is required to adjust the radiator's position, which is inconvenient and inefficient. Furthermore, re-drilling makes precise adjustment difficult and can affect the strength of the front bumper beam, failing to guarantee the performance and stability of the radiator after installation. 2. Insufficient structural stability. The overlapping plates on the connecting plate only support the longitudinal beams of the vehicle body. Vibrations during vehicle operation may cause the rear-mounted crossbeam to shift, affecting the radiator's fixation and even causing interference between the radiator and other components, or damage to connecting parts. 3. Lack of forced cooling components. Under low-speed, idling, or high-temperature environments and high-load conditions, relying solely on natural wind cooling is insufficient to meet cooling demands, leading to excessively high coolant temperatures and affecting the performance of the powertrain. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a vehicle front compartment heat dissipation device. The radiator assembly is fixed between the subframe and the front water channel and corresponds to the air intake grille. It adapts to the front compartment space and extends the residence time of the airflow on the surface of the heat dissipation core to enhance heat exchange. At the same time, it is equipped with a suction-type cooling fan to solve the problem of insufficient natural wind at low speed or idling speed, so as to achieve stable heat dissipation under both high and low speed conditions.

[0006] The aforementioned vehicle front compartment cooling device includes a subframe and a front water channel. An air intake grille is provided between the subframe and the front water channel. Fixing seats are fixed on both sides of the subframe, and a radiator assembly is provided on the fixing seats. The radiator assembly is inclined towards the side away from the air intake grille. Fixing posts one and two are fixed at intervals on the upper part of the radiator assembly. Fixing posts one and two are fixedly connected to the front water channel through fixing brackets. The lower end of the radiator assembly is fixedly connected to the fixing seats.

[0007] Preferably, the angle of inclination of the radiator assembly to the horizontal plane is 80-88°.

[0008] Preferably, the fixed bracket has a Z-shaped structure, with one end of the fixed bracket being inserted into fixed column one or fixed column two, and the other end of the fixed bracket being fixedly connected to the front water tank by bolts.

[0009] Preferably, the air intake grille is provided with a middle welding bracket on the side near the radiator assembly, and multiple buckles are fixedly connected to the air intake grille. The middle welding bracket is provided with a slot that engages with the buckles. The middle welding bracket is fixedly connected to the front water channel by fasteners, and the bottom of the air intake grille is fixedly connected to the front bumper.

[0010] Preferably, the radiator assembly includes a radiator core, one end of which is provided with a water inlet chamber connected to a water inlet, and the other end of which is provided with a water outlet chamber connected to a water outlet. A cooling fan is provided on the side of the radiator core away from the air intake grille.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The radiator assembly is located in the front compartment and corresponds to the air intake grille. During installation, the upper part of the radiator assembly is tilted away from the grille to adapt to the front compartment space and extend the time that the airflow stays on the surface of the heat dissipation core, thereby enhancing heat exchange. Secondly, the radiator assembly is equipped with a suction-type cooling fan to solve the problem of insufficient natural airflow at low speeds or idling speeds, and to achieve stable heat dissipation under both high and low speed conditions. Tests have shown that it can significantly reduce the water temperature during driving.

[0012] 2. The two side mounting brackets of the subframe and the front water channel are fixed at four points above and below by Z-shaped fixing brackets. The bending buffer section of the Z-shaped fixing bracket reduces vibration transmission and prevents radiator displacement. At the same time, the air intake grille blocks stones and fallen leaves, and the front water channel guides rainwater to prevent the radiator core from being blocked or corroded.

[0013] 3. The fixed bracket and fixed column are plugged together to achieve quick pre-positioning and reduce assembly difficulty; the air intake grille buckle connection reduces assembly time by more than 50%, and the elastic structure of the buckle avoids abnormal noise; the bracket and water channel are bolted together, making it convenient for later maintenance and disassembly.

[0014] 4. The mounting column provides a modular installation interface to avoid damaging the heat dissipation core structure; by adjusting the shape of the mounting base and the height of the bracket, it can be adapted to the front compartment layout of different vehicle models without extensive redevelopment, taking into account the needs of multiple vehicle models and conforming to the modular design concept. Attached Figure Description

[0015] Figure 1 This is a front structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear structure of the present invention; Figure 3 This is a schematic diagram showing the disassembled parts of this utility model; Figure 4 This is a schematic diagram showing the installation of the intermediate welded bracket with the front water channel and the air intake grille. Figure 5 This is a side view of the present invention. Figure 6 This is a schematic diagram showing the installation of the subframe and radiator assembly; Figure 7 This is a schematic diagram of the radiator assembly.

[0016] In the diagram, 1. Front water channel; 2. Air intake grille; 201. Buckle; 3. Radiator assembly; 301. Fixing post one; 3011. Fixing bracket; 302. Fixing post two; 303. Lower fixing end; 304. Radiator core; 305. Cooling fan; 306. Water inlet; 307. Water outlet; 4. Subframe; 401. Fixing seat; 5. Intermediate welding bracket; 501. Fastener; 6. Front bumper. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings: The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figures 1 to 7As shown, a vehicle front compartment cooling device includes a subframe 4, a front drainage channel 1, a central welded bracket 5, an air intake grille 2, a front bumper 6, and a radiator assembly 3. The subframe 4, front drainage channel 1, central welded bracket 5, air intake grille 2, and front bumper 6 form the vehicle's front compartment space. The subframe 4 is the core load-bearing structure of the vehicle's front compartment. On one hand, it provides a stable mounting reference for subsequent components such as the radiator assembly 3 and the front bumper 6, distributing component weight and vibration loads; on the other hand, its rigidity enhances the overall structural strength of the front compartment, adapting to bumpy conditions during vehicle operation. The front drainage channel 1 is located below the windshield, serving to collect and divert rainwater and car wash water from the windshield; it also provides an upper fixing reference for the radiator assembly 3 and a mounting point for the central welded bracket 5, combining waterproofing and structural support to prevent liquid from seeping into the radiator assembly 3 or the front compartment wiring harness.

[0019] During installation, an air intake grille 2 is installed between the subframe 4 and the front water channel 1. The vertical distance between the subframe 4 and the front water channel 1 can be used to form a directional air intake channel, ensuring that the outside cold air can be accurately introduced, reducing airflow dispersion and improving heat dissipation efficiency. At the same time, the air intake grille 2 can block stones, fallen leaves and other debris, preventing them from hitting or blocking the radiator core 304.

[0020] The subframe 4 has mounting bases 401 welded to both sides. The radiator assembly 3 is mounted on the mounting bases 401. The two mounting bases 401 can prevent the radiator assembly 3 from shifting due to its own weight or vibration, and can balance the weight of the radiator. During installation, the lower fixing ends 303 are fixed to both sides of the bottom of the radiator assembly 3, and the lower fixing ends 303 are fixedly connected to the mounting bases 401.

[0021] The radiator assembly 3 includes a radiator core 304, which is the core heat exchange component of the radiator assembly. The radiator core 304 guides the coolant through internal heat pipes and exchanges heat with external heat exchangers, transferring heat from the coolant to the outside air. One end of the radiator core 304 has an inlet chamber, which serves as a buffer chamber for the high-temperature coolant, preventing direct impact of the coolant on the radiator core 304 and avoiding excessive local pressure. The inlet chamber connects to an inlet 306, which connects to the engine's coolant outlet pipe, introducing the high-temperature coolant to provide a heat source for heat exchange. The other end of the radiator core 304 has an outlet chamber connected to an outlet 307, which connects to the engine's coolant return pipe, returning the cooled coolant to the power system to complete the cooling cycle. A cooling fan 305 is provided on the side of the radiator core 304 away from the air intake grille 2, forming a suction-type cooling system. When the fan is running, it draws in cold air from the side of the air intake grille 2, forces the airflow through the radiator core 304, and then exhausts the hot air from the side of the cooling fan 305, solving the problem of insufficient natural airflow when driving at low speed or idling. Secondly, the cooling fan 305 is located behind the radiator core 304, which also prevents the cooling fan 305 from being blocked by the air intake grille 2, reducing airflow loss.

[0022] In this embodiment, by adjusting the shape and position of the fixing seat 401, the radiator assembly 3 is tilted away from the air intake grille 2. On the one hand, this can adapt to the front compartment's narrow front and wide rear space layout, avoiding interference between the radiator assembly 3 and components such as the air intake grille 2 and the front bumper 6. On the other hand, it allows cold air to better contact the radiator core 304 and prolongs the residence time of the airflow on the surface of the radiator core 304, indirectly improving the heat exchange efficiency.

[0023] The preferred angle between the radiator assembly 3 and the horizontal plane is 80-88°. This maximizes the effective windward area of ​​the radiator core 304 while avoiding components such as pipes, wiring harnesses, and wiper motors in the upper part of the front compartment, allowing condensate on the surface of the radiator core 304 to drip naturally along the inclined direction.

[0024] The upper part of the radiator assembly 3 is fixed with two spaced-apart fixing posts 301 and 302. Both fixing posts 301 and 302 are fixedly connected to the front water channel 1 via fixing brackets 3011. The lower end of the radiator assembly 3 is fixedly connected to the fixing base 401. The fixing posts 301 and 302 provide a modular installation interface for the upper part of the radiator assembly 3, avoiding direct drilling into the radiator core 304, damaging the water chamber seal or core structure; and through two-point positioning, ensuring the flatness of the upper part of the radiator installation and preventing tilting or displacement.

[0025] The fixed bracket 3011 has a Z-shaped structure. The height difference formed by the bending of the fixed bracket 3011 is adapted to the installation height difference between the radiator fixing column and the front water channel 1, avoiding stress concentration caused by direct stretching or compression of the bracket. At the same time, the bending part of the Z-shaped structure can form an elastic buffer section, which absorbs part of the impact force when the vehicle vibrates, reducing the amplitude of vibration transmitted to the front water channel 1 or radiator assembly 3.

[0026] One end of the fixed bracket 3011 is inserted into either fixed post 301 or fixed post 302, enabling rapid pre-positioning. During assembly, the fixed bracket 3011 is first inserted into the fixed post, and then the bolt at the other end is tightened, reducing assembly difficulty. Simultaneously, the insertion structure can compensate for installation errors and improve assembly tolerance. The other end of the fixed bracket 3011 is fixedly connected to the front water channel 1 via bolts, ensuring a secure connection between the bracket and the front water channel 1 while facilitating future maintenance.

[0027] The air intake grille 2 has a central welded bracket 5 on the side near the radiator assembly 3. The central welded bracket 5 is made of metal and provides stable back support for the air intake grille 2, preventing deformation due to wind pressure during driving. Multiple clips 201 are fixedly connected to the air intake grille 2. The central welded bracket 5 has slots that engage with the clips 201. The air intake grille 2 is connected to the central welded bracket 5 via the clips 201, enabling quick assembly and disassembly of the air intake grille 2. Compared to a fully bolted connection, this reduces assembly time by more than 50%. The elastic structure of the clips 201 also absorbs vibration and friction between the air intake grille 2 and the central welded bracket 5, preventing abnormal noises after long-term use.

[0028] The intermediate welded bracket 5 is fixedly connected to the front water channel 1 by fastener 501, making the installation more secure and preventing the intermediate welded bracket 5 from causing the air intake grille 2 to shift. The bottom of the air intake grille 2 is fixedly connected to the front bumper 6, that is, the upper part of the air intake grille 2 is connected to the intermediate welded bracket 5, and the lower part is connected to the front bumper 6, forming a two-point support, which improves the overall wind load resistance of the air intake grille 2, and at the same time makes the air intake grille 2 and the front bumper 6 form an integrated appearance, reducing gaps and making it more aesthetically pleasing.

[0029] When this utility model is in use, after the vehicle is started, the heat generated by the power system raises the coolant temperature to 80-90℃. The thermal management system triggers the circulation pump to work, and the high-temperature coolant enters the water inlet chamber through the radiator inlet 306, and then is evenly distributed into the heat dissipation pipes of the radiator core 304. The heat is transferred to the outer heat dissipation sash through the pipe wall, and then heat dissipation is completed according to the operating conditions: when the vehicle speed is ≥40km / h, natural air flows directionally through the air intake grille 2 through the heat dissipation sash, carrying away the heat; when the vehicle speed is <40km / h or idling, the cooling fan 305 can be activated to generate negative pressure, forcibly drawing in cold air to accelerate heat exchange.

[0030] After cooling, the coolant flows into the outlet chamber and returns to the power system for reuse through the outlet 307. During this process, the subframe 4 and the mounting base 401, and the front water channel 1 and the Z-shaped fixed bracket 3011 form a four-point fixation to prevent the radiator from shifting or vibrating; the front water channel 1 also guides rainwater to avoid corrosion of the radiator core 304, ensuring stable and efficient heat dissipation throughout the process.

[0031] This invention involves tilting the radiator assembly 3 within the vehicle's front compartment. Testing revealed a significant decrease in the water temperature gauge reading during vehicle operation. Compared to traditional upright mounting structures, tests showed an 8-12°C reduction in water temperature at idle, and a stable water temperature of 75-85°C at high speeds, demonstrating a significant cooling effect.

[0032] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle front compartment heat dissipation device, comprising a subframe (4) and a front water channel (1), an air inlet grille (2) is arranged between the subframe (4) and the front water channel (1), characterized in that: The subframe (4) is fixed with mounting bases (401) on both sides. The mounting bases (401) are equipped with radiator assemblies (3), and the radiator assemblies (3) are tilted away from the air intake grille (2). The upper part of the radiator assembly (3) is fixed with a first mounting post (301) and a second mounting post (302) arranged at intervals. The first mounting post (301) and the second mounting post (302) are both fixedly connected to the front water channel (1) through a fixed bracket (3011). The lower end of the radiator assembly (3) is fixedly connected to the mounting base (401).

2. The vehicle front compartment heat dissipation device according to claim 1, characterized in that: The angle between the radiator assembly (3) and the horizontal plane is 80-88°.

3. A vehicle front compartment heat dissipation device according to claim 1, characterized in that: The fixed bracket (3011) has a Z-shaped structure. One end of the fixed bracket (3011) is inserted into the fixed column one (301) or the fixed column two (302), and the other end of the fixed bracket (3011) is fixedly connected to the front water channel (1) by bolts.

4. A vehicle front compartment heat dissipation device according to claim 1, characterized in that: The air intake grille (2) is provided with a middle welding bracket (5) on the side near the radiator assembly (3). Multiple buckles (201) are fixedly connected to the air intake grille (2). The middle welding bracket (5) is provided with a slot that engages with the buckles (201). The middle welding bracket (5) is fixedly connected to the front water channel (1) by fasteners (501). The bottom of the air intake grille (2) is fixedly connected to the front bumper (6).

5. A vehicle front compartment cooling device according to any one of claims 1 to 4, characterized in that: The radiator assembly (3) includes a radiator core (304), one end of which is provided with a water inlet chamber connected to a water inlet (306), and the other end of which is provided with a water outlet chamber connected to a water outlet (307). A cooling fan (305) is provided on the side of the radiator core (304) away from the air intake grille (2).

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